阅读说明：本技术 把持工具及把持工具的使用方法 (Holding tool and method for using holding tool ) 是由 坪冈光司 于 2020-02-21 设计创作，主要内容包括：本发明的课题在于提供一种把持工具及把持工具的使用方法,其可以借由简易的操作来切换锁定状态与锁定解除状态。把持工具具有：第1构件,包含第1把持部；第2构件,包含第2把持部；操作构件,在平行于第1方向的方向上,使第2把持部相对于所述第1把持部而相对移动；第3构件,螺合于操作构件,并且螺合于第2构件；及锁定机构。锁定机构切换锁定状态与锁定解除状态,所述锁定状态是防止第2把持部相对于第1把持部在第2方向上相对移动的状态,所述锁定解除状态是容许第2把持部相对于第1把持部在第2方向上相对移动的状态。另外,锁定机构包含设置在第3构件的卡合部。(The invention provides a gripping tool and a method for using the gripping tool, which can switch a locking state and an unlocking state by simple operation. The holding tool comprises: a 1 st member including a 1 st gripping portion; a 2 nd member including a 2 nd grip portion; an operation member that relatively moves the 2 nd grip part with respect to the 1 st grip part in a direction parallel to the 1 st direction; a 3 rd member screwed to the operation member and to the 2 nd member; and a locking mechanism. The lock mechanism switches between a locked state in which the 2 nd grip portion is prevented from moving relative to the 1 st grip portion in the 2 nd direction and an unlocked state in which the 2 nd grip portion is allowed to move relative to the 1 st grip portion in the 2 nd direction. The lock mechanism includes an engaging portion provided on the 3 rd member.)

1. A holding tool includes:

a 1 st member including a 1 st gripping portion;

a 2 nd member including a 2 nd grip portion;

an operation member which, when a direction from the 2 nd grip portion toward the 1 st grip portion is defined as a 1 st direction and a direction opposite to the 1 st direction is defined as a 2 nd direction, can relatively move the 2 nd grip portion with respect to the 1 st grip portion in a direction parallel to the 1 st direction;

a 3 rd member screwed to the operating member and to the 2 nd member; and

a lock mechanism that switches between a locked state in which the 2 nd grip portion is prevented from moving relative to the 1 st grip portion in the 2 nd direction and an unlocked state in which the 2 nd grip portion is allowed to move relative to the 1 st grip portion in the 2 nd direction,

the locking mechanism includes an engaging portion provided on the 3 rd member.

2. The gripping tool according to claim 1, which is configured to: the operation member is rotated in a 1 st rotational direction, whereby the 2 nd grip portion is moved in the 1 st direction and the state is switched from the unlocked state to the locked state.

3. The gripping tool according to claim 1 or 2, which is configured to: the locked state is maintained until the operation member is rotated by a predetermined angle in the 2 nd rotation direction, and when the operation member is rotated by a predetermined angle or more in the 2 nd rotation direction, the state is switched from the locked state to the unlocked state.

4. The gripping tool according to any one of claims 1-3, wherein the 3 rd member has:

a 1 st surface for defining an upper limit position of the operation member with respect to the 3 rd member; and

and a 2 nd surface defining a lower limit position of the operation member with respect to the 3 rd member.

5. The gripping tool according to any one of claims 1 to 4, wherein the locking mechanism includes a 2 nd engaging portion provided on the 1 st member.

6. The gripping tool according to any one of claims 1 to 5, wherein the operating member has a pushing portion that switches the state of the lock mechanism from the locked state to the unlocked state.

7. The gripping tool according to any one of claims 1-6, wherein the operating member has a mounting portion to which a remote operating rod is detachably mounted.

8. A method for using a holding tool, which comprises a handle,

the holding tool includes:

a 1 st member including a 1 st gripping portion;

a 2 nd member including a 2 nd grip portion;

an operation member which, when a direction from the 2 nd grip portion toward the 1 st grip portion is defined as a 1 st direction and a direction opposite to the 1 st direction is defined as a 2 nd direction, can relatively move the 2 nd grip portion with respect to the 1 st grip portion in a direction parallel to the 1 st direction;

a 3 rd member screwed to the operating member and to the 2 nd member; and

a lock mechanism that switches between a locked state in which the 2 nd grip portion is prevented from moving relative to the 1 st grip portion in the 2 nd direction and an unlocked state in which the 2 nd grip portion is allowed to move relative to the 1 st grip portion in the 2 nd direction,

the use method comprises the following steps:

disposing a gripping object between the 1 st gripping part and the 2 nd gripping part; and

a gripping step of rotating the operation member in a 1 st rotation direction to grip the object to be gripped by the 1 st gripping part and the 2 nd gripping part,

the holding step includes:

a space reduction step of reducing a space between the 1 st gripping part and the 2 nd gripping part by relative rotation between the 3 rd member and the 2 nd member; and

a 1 st switching step of switching the state of the lock mechanism from the unlocked state to the locked state by relative rotation between the 3 rd member and the operation member.

9. The method of using a gripping tool according to claim 8, further comprising a gripping release step of releasing the gripping of the gripping object by the 1 st gripping part and the 2 nd gripping part,

the grip releasing step includes:

a 2 nd switching step of switching the state of the lock mechanism from the locked state to the unlocked state by relative rotation between the 3 rd member and the operation member; and

a space enlarging step of enlarging a space between the 1 st gripping part and the 2 nd gripping part by relative rotation between the 3 rd member and the 2 nd member.

Technical Field

The present invention relates to a gripping tool and a method of using the gripping tool.

Background

A gripping tool for gripping an object to be gripped is known.

As a related art, patent document 1 describes an indirect suture holding tool. The indirect active wire gripping tool described in patent document 1 includes a gripping mechanism, an insulating operating rod, an engaging member, and a locking mechanism. The gripping mechanism has a fixed gripping part and a movable gripping part. The insulated operating rod has an operating rod body and an axial center side member disposed inside the operating rod body. The operation rod body can slide along the axial direction relative to the axial center side component.

In the indirect-type looper gripping tool disclosed in patent document 1, the lock mechanism is operated when the operation rod body is slid toward the gripping mechanism. In the operating state of the locking mechanism, the insulating operating rod is prevented from rotating to make the movable holding part far away from the fixed holding part. When the operation rod body is slid in a direction away from the holding mechanism, the lock of the lock mechanism is released. As a result, the insulating operation rod can be rotated to separate the movable grip portion from the fixed grip portion.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2015-165739

Disclosure of Invention

Problems to be solved by the invention

The invention aims to provide a holding tool and a using method thereof, which can switch a locking state and an unlocking state by simple operation.

Means for solving the problems

The present invention relates to a gripping tool and a method of using the gripping tool described below.

(1) A holding tool includes:

a 1 st member including a 1 st gripping portion;

a 2 nd member including a 2 nd grip portion;

an operation member which, when a direction from the 2 nd grip portion toward the 1 st grip portion is defined as a 1 st direction and a direction opposite to the 1 st direction is defined as a 2 nd direction, can relatively move the 2 nd grip portion with respect to the 1 st grip portion in a direction parallel to the 1 st direction;

a 3 rd member screwed to the operating member and to the 2 nd member; and

a lock mechanism that switches between a locked state in which the 2 nd grip portion is prevented from moving relative to the 1 st grip portion in the 2 nd direction and an unlocked state in which the 2 nd grip portion is allowed to move relative to the 1 st grip portion in the 2 nd direction,

the locking mechanism includes an engaging portion provided on the 3 rd member.

(2) The gripping tool according to the above (1), comprising: the operation member is rotated in a 1 st rotational direction, whereby the 2 nd grip portion is moved in the 1 st direction and the state is switched from the unlocked state to the locked state.

(3) The gripping tool according to the above (1) or (2), comprising: the locked state is maintained until the operation member is rotated by a predetermined angle in the 2 nd rotation direction, and when the operation member is rotated by a predetermined angle or more in the 2 nd rotation direction, the state is switched from the locked state to the unlocked state.

(4) The gripping tool according to any one of the above (1) to (3), wherein the 3 rd member has:

a 1 st surface for defining an upper limit position of the operation member with respect to the 3 rd member; and

and a 2 nd surface defining a lower limit position of the operation member with respect to the 3 rd member.

(5) The gripping tool according to any one of the above (1) to (4), wherein the locking mechanism includes a 2 nd engaging portion provided on the 1 st member.

(6) The gripping tool according to any one of the above (1) to (5), wherein the operating member has a pushing portion that switches the state of the locking mechanism from the locked state to the unlocked state.

(7) The gripping tool according to any one of (1) to (6) above, wherein the operating member has a mounting portion to which a remote operating rod is detachably mounted.

(8) A method for using a holding tool, which comprises a handle,

the holding tool includes:

a 1 st member including a 1 st gripping portion;

a 2 nd member including a 2 nd grip portion;

an operation member which, when a direction from the 2 nd grip portion toward the 1 st grip portion is defined as a 1 st direction and a direction opposite to the 1 st direction is defined as a 2 nd direction, can relatively move the 2 nd grip portion with respect to the 1 st grip portion in a direction parallel to the 1 st direction;

a 3 rd member screwed to the operating member and to the 2 nd member; and

a lock mechanism that switches between a locked state in which the 2 nd grip portion is prevented from moving relative to the 1 st grip portion in the 2 nd direction and an unlocked state in which the 2 nd grip portion is allowed to move relative to the 1 st grip portion in the 2 nd direction,

the use method comprises the following steps:

disposing a gripping object between the 1 st gripping part and the 2 nd gripping part; and

a gripping step of rotating the operation member in a 1 st rotation direction to grip the object to be gripped by the 1 st gripping part and the 2 nd gripping part,

the holding step includes:

a space reduction step of reducing a space between the 1 st gripping part and the 2 nd gripping part by relative rotation between the 3 rd member and the 2 nd member; and

a 1 st switching step of switching the state of the lock mechanism from the unlocked state to the locked state by relative rotation between the 3 rd member and the operation member.

(9) The method of using the gripping tool according to (8) above, further comprising a gripping release step of releasing the gripping of the gripping object by the 1 st gripping part and the 2 nd gripping part,

the grip releasing step includes:

a 2 nd switching step of switching the state of the lock mechanism from the locked state to the unlocked state by relative rotation between the 3 rd member and the operation member; and

a space enlarging step of enlarging a space between the 1 st gripping part and the 2 nd gripping part by relative rotation between the 3 rd member and the 2 nd member.

Effects of the invention

According to the present invention, it is possible to provide a gripping tool and a method of using the gripping tool, which can switch between a locked state and an unlocked state by a simple operation.

Drawings

Fig. 1 is a schematic longitudinal sectional view schematically showing a gripping tool according to embodiment 1.

Fig. 2 is a schematic side view schematically showing the gripping tool in embodiment 1.

Fig. 3 is a schematic longitudinal sectional view schematically showing the gripping tool according to embodiment 1.

Fig. 4 is a flowchart showing an example of a method of using the gripping tool according to embodiment 1.

Fig. 5 is a schematic longitudinal sectional view schematically showing a state when one step of the method of using the holding tool is performed.

Fig. 6 is a schematic longitudinal sectional view schematically showing a state when one step of the method of using the holding tool is performed.

Fig. 7 is a schematic longitudinal sectional view schematically showing a state when one step of the method of using the holding tool is performed.

Fig. 8 is a schematic longitudinal sectional view schematically showing a state when one step of the method of using the holding tool is performed.

Fig. 9 is a schematic longitudinal sectional view schematically showing a state when one step of the method of using the holding tool is performed.

Fig. 10 is a schematic rear view schematically showing the gripping tool in embodiment 2.

Fig. 11 is a cross-sectional view of fig. 10 from the a-a arrow view.

Detailed Description

Hereinafter, the gripping tool 1 and the method of using the gripping tool in the embodiment will be described in detail with reference to the drawings. In the present specification, the same or similar reference numerals are attached to members having the same functions. Note that, the same or similar reference numerals are attached to members, and a repetitive description thereof may be omitted.

(definition of orientation)

In the present specification, a direction from the 2 nd grasping portion 21 (more specifically, the 2 nd grasping surface 21a) toward the 1 st grasping portion 11 (more specifically, the 1 st grasping surface 11a) is defined as a 1 st direction DR1, and a direction opposite to the 1 st direction DR1 is defined as a 2 nd direction DR 2.

(embodiment 1)

A gripping tool 1A according to embodiment 1 will be described with reference to fig. 1 to 3. Fig. 1 and 3 are schematic longitudinal sectional views schematically showing a gripping tool 1A according to embodiment 1. Fig. 2 is a schematic side view schematically showing the gripping tool 1A in embodiment 1.

The gripping tool 1A includes a 1 st member 10, a 2 nd member 20, a 3 rd member 30, an operation member 40, and a lock mechanism M.

In the example shown in fig. 1, the 1 st member 10 includes a 1 st gripping portion 11. In the example shown in fig. 1, the 1 st member 10 is a structural member having an opening OP capable of receiving a gripping object. In the example shown in fig. 1 and 2, the 1 st member 10 has a substantially C-shape in a side view, but the shape of the 1 st member 10 is not limited to the example shown in fig. 1 and 2. The 1 st member 10 may be composed of 1 part or a combination of a plurality of parts.

In the example shown in fig. 1, the 1 st gripping portion 11 has a 1 st gripping surface 11a that contacts the gripping object. The 1 st gripping surface 11a is, for example, a curved surface.

In the example shown in fig. 1, the 2 nd member 20 includes a 2 nd gripping portion 21. The 2 nd member 20 is a member relatively movable with respect to the 1 st member 10. In the example shown in fig. 1, the 2 nd member 20 has a screw bar 23 in addition to the 2 nd gripping part 21. In the example shown in fig. 1, the threaded rod 23 has a male thread portion 23m on its outer peripheral surface. In the example shown in fig. 1, the 2 nd member 20 is formed by combining a component constituting the 2 nd gripping part 21 and a component constituting the screw rod 23. Alternatively, the 2 nd member 20 may be composed of 1 part, or a combination of 3 or more parts.

In the example shown in fig. 1, the 2 nd gripping part 21 has a 2 nd gripping surface 21a that contacts the gripping object. The 2 nd gripping surface 21a is, for example, a curved surface.

The operating member 40 is a member that moves the 2 nd grip portion 21 relative to the 1 st grip portion 11 in a direction parallel to the 1 st direction DR 1.

When the operation member 40 is operated, the interval between the 1 st gripping part 11 (more specifically, the 1 st gripping surface 11a) and the 2 nd gripping part 21 (more specifically, the 2 nd gripping surface 21a) is changed. In the example shown in fig. 1, when the operating member 40 is rotated in the 1 st rotation direction R1, the 2 nd grip part 21 moves in a direction approaching the 1 st grip part 11. On the other hand, when the operating member 40 is rotated in the 2 nd rotation direction R2 opposite to the 1 st rotation direction R1, the 2 nd grip part 21 moves in a direction away from the 1 st grip part 11.

In the example shown in fig. 1, the 3 rd member 30 is screwed to the operation member 40 and is also screwed to the 2 nd member 20. More specifically, the 3 rd member 30 has a male screw portion 33m, and the male screw portion 33m is screwed to the female screw portion 43f of the operating member 40. The 3 rd member 30 has a female screw portion 33f, and the female screw portion 33f is screwed to the male screw portion 23m of the 2 nd member 20.

In the example shown in fig. 1, the 3 rd member 30 is screwed to the operation member 40 and is also screwed to the 2 nd member 20. Therefore, when the operation member 40 is relatively rotated with respect to the 3 rd member 30, the operation member 40 relatively moves with respect to the 3 rd member 30 along the longitudinal axis direction of the 3 rd member 30. On the other hand, when the operating member 40 and the 3 rd member 30 are relatively rotated with respect to the 2 nd member 20, the 2 nd member 20 relatively moves with respect to the 3 rd member 30 along the longitudinal axis direction of the 3 rd member 30.

In the example shown in fig. 1, the 3 rd member 30 cannot move relative to the 1 st member 10 in a direction parallel to the 1 st direction DR 1. Accordingly, in a situation where member 3 is considered as a reference, when the operating member 40 is relatively rotated with respect to member 3 30, the operating member 40 moves in a direction parallel to direction 1 DR 1. In addition, considering the 3 rd member 30 as being a reference, the 2 nd member 20 moves in a direction parallel to the 1 st direction DR1 after the operating member 40 and the 3 rd member 30 are relatively rotated together with respect to the 2 nd member 20.

The lock mechanism M is a mechanism that switches between a locked state in which the 2 nd grip 21 is prevented from moving relative to the 1 st grip 11 in the 2 nd direction DR2, and an unlocked state in which the 2 nd grip 21 is allowed to move relative to the 1 st grip 11 in the 2 nd direction DR 2. The locked state substantially means a state in which the gap between the 1 st gripping part 11 and the 2 nd gripping part 21 cannot be enlarged. Accordingly, in a case where the lock mechanism M is in the locked state, the gripping object does not fall off from the gripping tool 1A. On the other hand, the unlocked state is a state in which the gap between the 1 st gripping part 11 and the 2 nd gripping part 21 can be enlarged.

The lock mechanism M includes an engaging portion 35 provided in the 3 rd member 30. The engagement portion 35 engages with a member other than the 3 rd member 30 (for example, the 2 nd engagement portion 15), thereby bringing the lock mechanism M into a locked state. In addition, in the locked state, although the 2 nd grip part 21 is prevented from relatively moving in the 2 nd direction DR2 with respect to the 1 st grip part 11, the 2 nd grip part 21 may be allowed to relatively move in the 1 st direction DR1 with respect to the 1 st grip part 11. Alternatively, in the locked state, in addition to preventing the 2 nd grip part 21 from relatively moving in the 2 nd direction DR2 with respect to the 1 st grip part 11, the 2 nd grip part 21 is also prevented from relatively moving in the 1 st direction DR1 with respect to the 1 st grip part 11.

In the example shown in fig. 1, the operating member 40 is moved relative to the 3 rd member 30 in the longitudinal axis direction of the 3 rd member 30 (in other words, in a direction parallel to the 1 st direction DR1), thereby switching between the locked state and the unlocked state. The details will be described later. In the example shown in fig. 1, the 2 nd member 20 is relatively moved with respect to the 3 rd member 30 in the longitudinal axis direction of the 3 rd member 30 (in other words, the direction parallel to the 1 st direction DR1), and thereby the interval between the 1 st gripping part 11 and the 2 nd gripping part 21 is changed.

In the grasping tool 1A according to embodiment 1, the 3 rd member 30 is screwed to the operation member 40 and also to the 2 nd member 20. Therefore, the above-described locked state and unlocked state can be switched by rotating the operation member 40, and the interval between the 1 st gripping part 11 and the 2 nd gripping part 21 can be changed. Accordingly, in the gripping tool 1A according to embodiment 1, the locked state and the unlocked state can be switched by a simple operation.

After the object to be gripped is disposed between the 1 st gripper 11 and the 2 nd gripper 21, the operation member 40 is rotated in the 1 st rotation direction R1. When the operating member 40 is rotated in the 1 st rotational direction R1, the operating member 40 rotates in the 1 st rotational direction R1 together with the 3 rd member 30. As a result, the 2 nd member 20 screwed to the 3 rd member 30 moves in the 1 st direction DR 1. In this way, the object to be gripped is gripped by the 1 st gripping part 11 and the 2 nd gripping part 21.

After the object to be gripped is gripped by the 1 st gripping part 11 and the 2 nd gripping part 21, the operation member 40 is further rotated in the 1 st rotation direction R1. In this situation, the 2 nd member 20 will not rotate relative to the 3 rd member 30 and the operating member 40 will rotate relative to the 3 rd member 30 because the movement of the 2 nd member 20 is restricted. In other words, after the object to be gripped is gripped by the 1 st and 2 nd gripping portions 11 and 21, and the operating member 40 is further rotated in the 1 st rotational direction R1, the operating member 40 is relatively rotated with respect to the 3 rd member 30, and the operating member 40 is moved in the 2 nd direction DR 2. As a result, as illustrated in fig. 1, the pressing portion 46 provided in the operation member 40 moves to the retracted position, and the lock mechanism M changes from the unlocked state to the locked state (the state in which the engaging portion 35 engages with another member such as the 2 nd engaging portion 15).

As described above, in the example shown in fig. 1, the following structure is provided: the operation member 40 is rotated in the 1 st rotation direction R1, whereby the 2 nd grip 21 is moved in the 1 st direction DR1 and switched from the unlocked state to the locked state. Therefore, by rotating the operation member 40 in the 1 st rotation direction R1, the gripping of the gripping object and the switching to the locked state can be performed.

Next, it is assumed that after the object to be gripped is gripped by the 1 st gripping part 11 and the 2 nd gripping part 21, the operation member 40 is rotated in the 2 nd rotation direction R2. In addition, the 2 nd rotation direction R2 is the opposite direction of the 1 st rotation direction R1.

When the operating member 40 is rotated in the 2 nd rotational direction R2, the operating member 40 is rotated relative to the 3 rd member 30, and the operating member 40 is moved in the 1 st direction DR 1. As a result, as shown in fig. 3, the pressing portion 46 provided in the operation member 40 moves to the advanced position, and the lock mechanism M changes from the locked state to the unlocked state (the state in which the engagement between the engagement portion 35 and another member such as the 2 nd engagement portion 15 is released).

In the example shown in fig. 3, the operation member 40 is maintained in the locked state until it is rotated by a predetermined angle (for example, an arbitrary angle having a predetermined angle of 360 degrees or more and 1080 degrees or less) in the 2 nd rotation direction R2. When the operation member 40 is rotated by a predetermined angle or more in the 2 nd rotation direction R2, the locked state is switched to the unlocked state. In this situation, even if the operator rotates the operating member 40 in the 2 nd rotation direction R2 by mistake, the lock is not immediately released. Accordingly, the safety of the operator and/or the personnel around the operator can be ensured.

Assume that when the lock mechanism M is changed from the locked state to the unlocked state, the operating member 40 is further rotated in the 2 nd rotational direction R2. When the operating member 40 is rotated in the 2 nd rotational direction R2, the operating member 40 rotates in the 2 nd rotational direction R2 together with the 3 rd member 30. As a result, the 2 nd member 20 screwed to the 3 rd member 30 moves in the 2 nd direction DR 2. In this way, the gripping of the gripping object by the 1 st gripping part 11 and the 2 nd gripping part 21 is released.

As described above, in the example shown in fig. 3, switching from the locked state to the unlocked state and releasing the gripping of the gripping object by the 1 st gripping part 11 and the 2 nd gripping part 12 can be performed by rotating the operation member 40 in the 2 nd rotation direction R2 by a predetermined angle or more. Therefore, by rotating the operation member 40 in the 2 nd rotation direction R2, switching to the unlocked state and releasing the gripping of the gripping object can be performed.

(examples of the 2 nd member 20, the 3 rd member 30, and the operation member 40)

An example of the 2 nd member 20, the 3 rd member 30, and the operation member 40 will be described in more detail with reference to fig. 1.

The 2 nd member 20 has a threaded rod 23. In the present specification, the term "threaded rod" refers to a member having a rod-shaped portion having a threaded portion formed on an inner circumferential surface or an outer circumferential surface. In other words, the threaded rod may be a male threaded rod having a threaded portion formed on an outer peripheral surface thereof, or a female threaded rod having a female threaded portion formed on an inner peripheral surface thereof.

In the example shown in fig. 1, the 2 nd member 20 has a rotation stopper 210, and the rotation stopper 210 prevents the 2 nd member 20 from rotating relative to the 1 st member 10. Therefore, when the 3 rd member 30 is relatively rotated with respect to the 1 st member 10, the 2 nd member 20 is prevented from being relatively rotated with respect to the 1 st member 10.

The 3 rd member 30 has a 1 st screw portion (33f) screwed to the 2 nd member 20 (more specifically, the screw rod 23). Therefore, when the 3 rd member 30 is relatively rotated in the 1 st rotation direction R1 with respect to the 2 nd member 20, the 2 nd grip part 21 of the 2 nd member 20 moves in a direction toward the 1 st grip part 11 (in other words, the 1 st direction DR 1). When the 3 rd member 30 is relatively rotated in the 2 nd rotation direction R2 with respect to the 2 nd member 20, the 2 nd grip part 21 of the 2 nd member 20 moves in a direction away from the 1 st grip part 11 (in other words, the 2 nd direction DR 2). In the example shown in fig. 1, the 1 st screw portion (33f) is a female screw portion. Alternatively, the 1 st threaded portion may be a male threaded portion.

The 3 rd member 30 has a 2 nd screw portion (33m) screwed to the operating member 40. Therefore, when the operating member 40 is relatively rotated in the 1 st rotational direction R1 with respect to the 3 rd member 30, the operating member 40 moves in a direction away from the 1 st grip 11 (in other words, the 2 nd direction DR 2). When the operating member 40 is relatively rotated in the 2 nd rotational direction R2 with respect to the 3 rd member 30, the operating member 40 moves in a direction approaching the 1 st grip 11 (in other words, the 1 st direction DR 1). In the example shown in fig. 1, the 2 nd screw part (33m) is a male screw part. Alternatively, the 2 nd thread part may be a female thread part. Preferably, the 2 nd screw part (33m) of the 3 rd member 30 and the 1 st screw part (33f) of the 3 rd member 30 are screws having the same direction. In other words, in a case where the 1 st screw portion (33f) of the 3 rd member 30 is a left screw, the 2 nd screw portion (33m) of the 3 rd member 30 is preferably a left screw, and in a case where the 1 st screw portion (33f) of the 3 rd member 30 is a right screw, the 2 nd screw portion (33m) of the 3 rd member 30 is preferably a right screw. In a case where the 1 st screw part (33f) of the 3 rd member 30 and the 2 nd screw part (33m) of the 3 rd member 30 are left-hand screws, the 2 nd member 20 moves in the 1 st direction DR1 after the operation member 40 is rotated in the 1 st rotation direction R1. In contrast, in the case where the 1 st screw part (33f) of the 3 rd member 30 and the 2 nd screw part (33m) of the 3 rd member 30 are right screws, the 2 nd member 20 moves in the 2 nd direction DR2 after the operating member 40 is rotated in the 1 st rotational direction R1.

In the example shown in fig. 1, when the operating member 40 is operated, the frictional force between the screw portion (43f) of the operating member 40 and the 2 nd screw portion (33m) of the 3 rd member 30 is larger than the frictional force between the 1 st screw portion (33f) of the 3 rd member 30 and the screw portion (23m) of the 2 nd member 20, but the former frictional force may be smaller than the latter frictional force instead. As will be described later in detail, in the example shown in fig. 1, after the operating member 40 is operated in the 1 st rotation direction R1, the screw rod 23 is advanced in the direction toward the object W by the relative movement between the 1 st screw portion (33f) of the 3 rd member 30 (having a small frictional force) and the screw portion (23m) of the 2 nd member 20 before the 2 nd gripping portion 21 comes into contact with the object W. When the operating member 40 is further operated in the 1 st rotation direction R1 after the 2 nd gripping part 21 has come into contact with the gripping object W, the operating member 40 is moved in a direction away from the gripping object W by the relative movement between the screw portion (43f) of the operating member 40 (having a large frictional force) and the 2 nd screw portion (33m) of the 3 rd member 30. When the operating member 40 is further operated in the 1 st rotational direction R1 after the operating member 40 has come into contact with the 2 nd surface 32 of the 3 rd member 30, the screw rod 23 moves forward in the direction toward the object W again. As a result, the gripping object W is strongly gripped by the 2 nd gripping part 21 and the 1 st gripping part 11 by the pressing force corresponding to the force with which the operating member 40 is twisted.

In the example shown in fig. 1, the 3 rd member 30 is attached to the 1 st member 10: can rotate relative to the 1 st member 10 about the central axis of the 3 rd member 30. In addition, the 3 rd member 30 is installed on the 1 st member 10: in a direction parallel to the 1 st direction DR1, relative movement with respect to the 1 st member 10 is not possible.

In the example shown in fig. 1, the 3 rd member 30 has the engaging portion 35. In the example shown in fig. 2, the engagement portion 35 includes a plurality of teeth 35a (more specifically, pawl teeth) arranged in a ring shape.

In the example shown in fig. 1, the 3 rd member 30 has a 1 st surface 31 and a 2 nd surface 32, the 1 st surface 31 defining an upper limit position of the operation member 40 with respect to the 3 rd member 30, and the 2 nd surface 32 defining a lower limit position of the operation member 40 with respect to the 3 rd member 30. In this situation, the operating member 40 can move up and down with respect to the 3 rd member 30 within the range between the upper limit position defined by the 1 st surface 31 and the lower limit position defined by the 2 nd surface 32. In the example shown in fig. 1, a direction from the 2 nd gripping part 21 (more specifically, the 2 nd gripping surface 21a) toward the 1 st gripping part 11 (more specifically, the 1 st gripping surface 11a) is regarded as an upward direction. Alternatively, a direction from the 1 st gripping part 11 (more specifically, the 1 st gripping surface 11a) toward the 2 nd gripping part 21 (more specifically, the 2 nd gripping surface 21a) may be regarded as the upward direction.

In the example shown in fig. 1, the 3 rd member 30 is a cylindrical member disposed outside the 2 nd member 20. In the example shown in fig. 1, the 3 rd member 30 is a cylindrical member with both ends open, but the 3 rd member 30 may be a bottomed cylindrical member with one end closed. The shape of the 3 rd member 30 is not limited to a cylindrical shape. The 3 rd member 30 may be composed of 1 part or a combination of a plurality of parts.

The operating member 40 has a screw portion (43f) screwed to the 3 rd member 30. In the example shown in fig. 1, the threaded portion (43f) is a female threaded portion, but the threaded portion (43f) may be a male threaded portion.

In the example shown in fig. 1, the operating member 40 has a 3 rd surface 44 that can contact the 1 st surface 31. The position where the 3 rd surface 44 contacts the 1 st surface 31 is the upper limit position of the operating member 40. In addition, the operating member 40 has a 4 th surface 45 that can contact the 2 nd surface 32. The 4 th surface 45 contacts the 2 nd surface 32 at a lower limit position of the operating member 40.

In the example shown in fig. 1, the operating member 40 has a pressing portion 46, and the pressing portion 46 switches the state of the lock mechanism M from the locked state to the unlocked state. In the example shown in fig. 1, the pressing portion 46 is an end portion provided on the operating member 40 on the 1 st direction DR1 side. The pressing portion 46 is, for example, an annular projecting portion.

In the example shown in fig. 1, the operating member 40 is a cylindrical member disposed outside the 3 rd member 30. In the example shown in fig. 1, the operating member 40 is a cylindrical member with both ends open. The shape of the operating member 40 is not limited to a cylindrical shape. The operation member 40 may be constituted by 1 part or a combination of a plurality of parts.

In the example shown in fig. 1, when the operating member 40 is rotated in the 1 st rotational direction R1, the operating member 40 is relatively rotated in the 1 st rotational direction R1 with respect to the 3 rd member 30, or the operating member 40 is relatively rotated in the 1 st rotational direction R1 with respect to the 2 nd member 20 together with the 3 rd member 30. When the operating member 40 is relatively rotated in the 1 st rotational direction R1 with respect to the 3 rd member 30, the operating member 40 moves in the 2 nd direction DR2 with respect to the 3 rd member 30. On the other hand, when the operating member 40 and the 3 rd member 30 rotate together relative to the 2 nd member 20 in the 1 st rotational direction R1, the 2 nd member 20 moves in the 1 st direction DR1 with respect to the 3 rd member 30.

In the example shown in fig. 1, when the operating member 40 is rotated in the 2 nd rotational direction R2, the operating member 40 is relatively rotated in the 2 nd rotational direction R2 with respect to the 3 rd member 30, or the operating member 40 is relatively rotated in the 2 nd rotational direction R2 with respect to the 2 nd member 20 together with the 3 rd member 30. When the operating member 40 is relatively rotated in the 2 nd rotational direction R2 with respect to the 3 rd member 30, the operating member 40 moves in the 1 st direction DR1 with respect to the 3 rd member 30. On the other hand, when the operating member 40 and the 3 rd member 30 rotate together relative to the 2 nd member 20 in the 2 nd rotation direction R2, the 2 nd member 20 moves in the 2 nd direction DR2 with respect to the 3 rd member 30.

As shown in fig. 3, it is assumed that when the operating member 40 is located at the upper limit position relative to the 3 rd member 30, the operating member 40 is rotated in the 1 st rotational direction R1. In this situation, rotational force rotating the operating member 40 is transmitted to the 3 rd member 30, rotating the 3 rd member 30 and the operating member 40 together in the 1 st rotational direction R1. When the 3 rd member 30 rotates in the 1 st rotation direction R1, the 2 nd member 20 having the 2 nd grip 21 moves in the 1 st direction DR 1. Accordingly, in the example shown in fig. 3, the 2 nd grip 21 can be moved in the 1 st direction DR1 by rotating the operating member 40 in the 1 st rotation direction R1.

The transmission of the rotational force for rotating the operating member 40 to the 3 rd member 30 may be performed by friction between the operating member 40 and the 3 rd member 30 or by engagement between the operating member 40 and the 3 rd member 30. In the example shown in fig. 3, the rotational force for rotating the operating member 40 is transmitted to the 3 rd member 30 by friction between the 3 rd surface 44 of the operating member 40 and the 1 st surface 31 of the 3 rd member 30.

As shown in fig. 1, it is assumed that when the operating member 40 is located at a position between the relative upper limit position with respect to the 3 rd member 30 and the relative lower limit position with respect to the 3 rd member 30, the operating member 40 is rotated in the 1 st rotational direction R1. In this situation, the operating member 40 is rotated relative to the 3 rd member 30 in the 1 st rotational direction R1. When the operating member 40 is rotated relative to the 3 rd member 30 in the 1 st rotational direction R1, the operating member 40 moves relative to the 3 rd member 30 in the 2 nd direction DR 2. By this movement, the state of the lock mechanism M is switched from the unlocked state to the locked state.

(an example of the locking mechanism M)

An example of the lock mechanism M will be described with reference to fig. 2.

In the example shown in fig. 2, the lock mechanism M includes an engagement portion 35 provided in the 3 rd member 30 and a 2 nd engagement portion 15 provided in the 1 st member 10. In the example shown in fig. 2, the engaging portion 35 includes a plurality of teeth 35a arranged in a ring shape, and the 2 nd engaging portion 15 includes a protruding portion 15a (more specifically, a claw portion), and the protruding portion 15a is engageable with any one of the plurality of teeth 35 a. In the example illustrated in fig. 2, the engaging portion 35 has a plurality of teeth 35a, and the 2 nd engaging portion 15 has at least 1 protruding portion 15 a. Alternatively, the engaging portion 35 may have at least 1 protrusion, and the 2 nd engaging portion 15 may have a plurality of teeth. Alternatively, the engaging portion 35 and the 2 nd engaging portion 15 may be provided with a plurality of teeth.

In the example shown in fig. 2, the 3 rd member 30 cannot rotate relative to the 1 st member 10 in the 2 nd rotation direction R2 in a state where the engagement portion 35 and the 2 nd engagement portion 15 are engaged with each other. Further, since the 3 rd member 30 cannot be rotated in the 2 nd rotation direction R2, the 2 nd member 20 having the 2 nd grip 21 cannot be moved in the 2 nd direction DR 2. As described above, when the engagement portion 35 and the 2 nd engagement portion 15 are engaged (in other words, when the lock mechanism M is in the locked state), the 3 rd member 30 cannot rotate in the 2 nd rotation direction R2, and the 2 nd gripping portion 21 cannot be moved in the direction to release the gripping of the gripping object (in other words, the 2 nd direction DR 2).

On the other hand, in the example shown in fig. 2, the 3 rd member 30 is relatively rotatable in the 1 st rotational direction R1 with respect to the 1 st member 10 in a state where the engaging portion 35 and the 2 nd engaging portion 15 are engaged. When the 3 rd member 30 is relatively rotated in the 1 st rotational direction R1 with respect to the 1 st member 10, the 2 nd engaging portion 15 can pass over at least 1 tooth 35a of the engaging portion 35. When the 2 nd engaging part 15 passes over at least 1 tooth 35a of the engaging part 35, the 2 nd engaging part 15 is engaged with other teeth of the engaging part 35. Alternatively, it is also possible to provide: by changing the shape of the engaging portion 35 and/or the 2 nd engaging portion 15, the 3 rd member 30 cannot be relatively rotated in both the 1 st rotational direction R1 and the 2 nd rotational direction R2 with respect to the 1 st member 10 in a state where the engaging portion 35 and the 2 nd engaging portion 15 are engaged.

In the example shown in fig. 3, the lock mechanism M includes a potential energy applying member 16, and the potential energy applying member 16 applies potential energy to the 2 nd engaging portion 15 (more specifically, the engaging member K2 having the 2 nd engaging portion 15) toward the engaging portion 35. Therefore, in a state where the pressing portion 46 of the operation member 40 has not pressed the 2 nd engaging portion 15 (more specifically, the engaging member K2 having the 2 nd engaging portion 15), the lock mechanism M automatically becomes the locked state (in other words, a state where the engaging portion 35 and the 2 nd engaging portion 15 are engaged). On the other hand, when the pressing portion 46 presses the 2 nd engaging portion 15 against the biasing force of the biasing member 16, the state of the lock mechanism M is switched from the locked state to the unlocked state.

(method of Using holding tool)

An example of a method of using the gripping tool in embodiment 1 will be described with reference to fig. 4 to 9. Fig. 4 is a flowchart showing an example of a method of using the gripping tool according to embodiment 1. Fig. 5 to 9 are longitudinal sectional views schematically showing a state when one step of the method of using the holding tool is performed.

As shown in fig. 5, in step ST1, the object W is disposed between the 1 ST gripping part 11 and the 2 nd gripping part 21. The 1 ST1 step is executed, for example, by: the object W to be gripped is moved to a space between the 1 st gripping part 11 and the 2 nd gripping part 21 through the opening OP. The object W to be gripped is, for example, a wire material such as an electric wire or a tool such as a wire grip. The object to be gripped is not limited to a wire or a tool.

In step ST2, the object W is gripped by the 1 ST gripping part 11 and the 2 nd gripping part 21. The 2 nd step ST2 is a gripping step of gripping the object to be gripped. The 2 nd step ST2 (gripping step) is executed by rotating the operating member 40 in the 1 ST rotating direction R1.

The 2 nd step ST2 (gripping step) includes: a space reduction step of reducing a space between the 1 st gripping part 11 and the 2 nd gripping part 21 by relative rotation between the 3 rd member 30 and the 2 nd member 20; and a 1 st switching step of switching the lock mechanism M from the unlocked state to the locked state by relative rotation between the 3 rd member 30 and the operating member 40.

In the interval reducing step, the 2 nd member 20 screwed to the 3 rd member 30 is moved in the 1 st direction DR1 by the relative rotation between the 3 rd member 30 and the 2 nd member 20. In this way, the interval between the 2 nd grip part 21 and the 1 st grip part 11 provided in the 2 nd member 20 is reduced. In the interval reducing step, the rotational force for rotating the operating member 40 is transmitted to the 3 rd member 30, and the 3 rd member 30 and the operating member 40 are rotated together in the 1 st rotational direction R1. The transmission of the rotational force is performed in a state where the position of the operating member 40 is located at the relative upper limit position with respect to the 3 rd member 30. More specifically, the rotational force is transmitted from the operating member 40 to the 3 rd member 30 by the contact between the 1 st surface 31 of the 3 rd member 30 and the 3 rd surface 44 of the operating member 40.

By executing the interval narrowing step, the object W to be gripped is gripped by the 1 st gripping part 11 and the 2 nd gripping part 21 (see fig. 6). When the object W is gripped by the 1 st gripping part 11 and the 2 nd gripping part 21, the 2 nd member 20 including the 2 nd gripping part 21 is substantially immovable relative to the 1 st gripping part 11. As a result, the 3 rd member 30 cannot rotate in the 1 st rotational direction R1. When the 3 rd member 30 becomes non-rotatable, the rotational force for rotating the operating member 40 is not transmitted to the 3 rd member 30, and the operating member 40 is relatively rotated with respect to the 3 rd member 30.

After the interval reduction step is performed, the operation member 40 is further rotated in the 1 st rotation direction R1, thereby performing the 1 st switching step. In the 1 st switching step, the operating member 40 is moved in the 2 nd direction DR2 (more specifically, in a direction from the advanced position (see fig. 6) toward the retracted position (see fig. 7)) by the relative rotation between the 3 rd member 30 and the operating member 40. When the operation member 40 moves in the 2 nd direction DR2, the pressing portion 46 of the operation member 40 is separated from the 2 nd engaging portion 15 provided in the 1 st member 10. When the pressing portion 46 and the 2 nd engaging portion 15 are separated, the 2 nd engaging portion 15, to which a potential is applied in a direction toward the engaging portion 35 by the potential applying member 16, is engaged with the engaging portion 35. In this way, the lock mechanism M is switched from the unlocked state to the locked state.

In the 1 st switching step, the relative position of the operating member 40 with respect to the 3 rd member 30 is preferably moved from the relative upper limit position to the relative lower limit position. By moving the position of the operating member 40 from the relative upper limit position to the relative lower limit position, the lock mechanism M can be reliably switched from the unlocked state to the locked state.

In the method of using the gripping tool according to embodiment 1, when the operating member 40 is rotated in the 1 st rotation direction R1, the interval reduction step of reducing the interval between the 1 st gripping part 11 and the 2 nd gripping part 21 and the 1 st switching step of switching the lock mechanism M from the unlocked state to the locked state can be continuously performed. Accordingly, embodiment 1 provides a method for using a gripping tool, which can switch between a locked state and an unlocked state by a simple operation.

The gripping step (step 2 ST2) may include a step 2 of reducing the interval in addition to the step of reducing the interval and the step 1 of switching. The 2 nd interval reduction step is a step of further reducing the interval between the 1 st gripping part 11 and the 2 nd gripping part 21. The 2 nd interval reduction step may also be referred to as a reinforcing fastening step. The 2 nd interval reduction step is performed by: after the 1 st switching step is performed, in other words, after the relative position of the operating member 40 with respect to the 3 rd member 30 has been moved to the relative lower position, the operating member 40 is further rotated in the 1 st rotational direction R1.

In the execution of the 2 nd interval reduction step, the operation member 40 is located at the relative lower limit position. Therefore, the operating member 40 cannot rotate relative to the 3 rd member 30 in the 1 st rotational direction R1. In this situation, when the operating member 40 is rotated in the 1 st rotational direction R1, the operating member 40 and the 3 rd member 30 are rotated relative to the 2 nd member 20 in the 1 st rotational direction R1, as in the interval reducing step.

When the 3 rd member 30 is relatively rotated in the 1 st rotation direction R1 with respect to the 2 nd member 20, the engaging portion 35 of the 3 rd member 30 can move beyond the 2 nd engaging portion 15. As a result, the 2 nd member 20 moves in the 1 st direction DR1 along the longitudinal axis direction of the 3 rd member 30. In this way, the interval between the 1 st gripping part 11 and the 2 nd gripping part 21 provided on the 2 nd member 20 becomes smaller.

In the 2 nd interval reduction step, the rotational force for rotating the operating member 40 is transmitted to the 3 rd member 30, and the 3 rd member 30 and the operating member 40 are rotated together in the 1 st rotational direction R1. The transmission of the rotational force is performed in a state where the position of the operating member 40 is located at the relative lower limit position with respect to the 3 rd member 30. More specifically, the rotational force is transmitted from the operating member 40 to the 3 rd member 30 by the contact between the 2 nd surface 32 of the 3 rd member 30 and the 4 th surface 45 of the operating member 40.

(holding releasing step)

Next, a description is given of a grip releasing step (in other words, step 3 ST3) of releasing the grip of the object W by the 1 ST grip unit 11 and the 2 nd grip unit 21.

In step 3 ST3 (gripping release step), the gripping of the gripping object W by the 1 ST gripping part 11 and the 2 nd gripping part 21 is released by rotating the operating member 40 in the 2 nd rotation direction R2.

Step 3 ST3 (grip releasing step) includes: a 2 nd switching step of switching the lock mechanism M from the locked state to the unlocked state by relative rotation between the 3 rd member 30 and the operating member 40; and an interval enlarging step of enlarging an interval between the 1 st gripping part 11 and the 2 nd gripping part 21 by relative rotation between the 3 rd member 30 and the 2 nd member 20.

In the 2 nd switching step, the operating member 40 is moved in the 1 st direction DR1 (more specifically, in a direction from the retracted position (see fig. 7) toward the advanced position (see fig. 8)) by the relative rotation between the 3 rd member 30 and the operating member 40. When the operation member 40 moves in the 1 st direction DR1, the pressing portion 46 of the operation member 40 presses the 2 nd engaging portion 15 provided in the 1 st member 10. When the pressing portion 46 presses the 2 nd engaging portion 15, the engagement between the engaging portion 35 and the 2 nd engaging portion 15 is released. In this way, the lock mechanism M is switched from the locked state to the unlocked state.

In addition, in the 2 nd switching step, the relative position of the operating member 40 with respect to the 3 rd member 30 is preferably moved from the relative lower limit position to the relative upper limit position. By moving the position of the operating member 40 from the relative lower limit position to the relative upper limit position, the lock mechanism M can be reliably switched from the locked state to the unlocked state.

After the 2 nd switching step is performed, the operation member 40 is further rotated in the 2 nd rotation direction R2, thereby performing the interval enlarging step. In the interval widening step, the 2 nd member 20 screwed to the 3 rd member 30 is moved in the 2 nd direction DR2 by the relative rotation between the 3 rd member 30 and the 2 nd member 20. In this way, the interval between the 2 nd grip part 21 and the 1 st grip part 11 provided in the 2 nd member 20 is enlarged. In the interval enlarging step, the rotational force for rotating the operating member 40 is transmitted to the 3 rd member 30, and the 3 rd member 30 and the operating member 40 are rotated together in the 2 nd rotational direction R2. The transmission of the rotational force is performed in a state where the position of the operating member 40 is located at the relative upper limit position with respect to the 3 rd member 30. More specifically, the rotational force is transmitted from the operating member 40 to the 3 rd member 30 by the contact between the 1 st surface 31 of the 3 rd member 30 and the 3 rd surface 44 of the operating member 40.

By executing the interval enlargement step, the gripping of the gripping target object W by the 1 st gripping part 11 and the 2 nd gripping part 21 is released (see fig. 9).

In the method of using the gripping tool according to embodiment 1, the operation member 40 is rotated to the 2 nd rotation method R2, and the 2 nd switching step of switching the state of the lock mechanism M from the locked state to the unlocked state and the interval enlarging step of enlarging the interval between the 1 st gripping part 11 and the 2 nd gripping part 21 are continuously executed. Accordingly, embodiment 1 provides a method for using a gripping tool, which can switch between a locked state and an unlocked state by a simple operation.

(embodiment 2)

A gripping tool 1B according to embodiment 2 will be described with reference to fig. 10 and 11. Fig. 10 is a schematic rear view schematically showing the gripping tool 1B according to embodiment 2. Fig. 11 is a sectional view of fig. 10 taken from the a-a arrow.

In embodiment 2, differences from embodiment 1 will be mainly described, and descriptions overlapping with those already described in embodiment 1 will be omitted. Accordingly, even though not explicitly described in embodiment 2, it is needless to say that the matters described in embodiment 1 may be adopted in embodiment 2.

The grasping tool 1B according to embodiment 2 includes a 1 st member 10, a 2 nd member 20, a 3 rd member 30, an operation member 40, and a lock mechanism M. The 1 st member 10, the 2 nd member 20, the 3 rd member 30, the operation member 40, and the lock mechanism M have already been described in the embodiment 1. Accordingly, the 1 st member 10, the 2 nd member 20, the 3 rd member 30, the operation member 40, and the lock mechanism M will not be described repeatedly.

(1 st Member 10)

In the example shown in fig. 11, the 1 st member 10 has a recess 17 for accommodating the engaging member K2. Further, the 1 st member 10 has a long hole 18 communicating with the recess 17. An engaging member K2 is inserted into the recess 17, and the engaging member K2 can be engaged with the engaging portion 35 of the 3 rd member 30. Further, a 1 st latch member P1 is inserted into the elongated hole 18, and the 1 st latch member P1 is attached to the engagement member K2. The 1 st latch member P1 functions as a withdrawal prevention member that prevents the engagement member K2 from falling out of the recess 17.

In the example shown in fig. 11, after the potential energy applying member 16 and the engaging member K2 are inserted into the recess 17, the 1 st latch member P1 is attached to the engaging member K2. The engaging member K2 disposed in the recess 17 is partially projected out of the recess 17 by the energizing power given to the energizing member 16. A part of the projection functions as a 2 nd engaging portion 15, and the 2 nd engaging portion 15 can be engaged with the engaging portion 35 of the 3 rd member 30.

(No. 2 Member 20)

In the example shown in fig. 11, the 2 nd member 20 is formed by a combination of a component including the 2 nd gripping part 21 (and the stopper part 210) and a component including the screw bar 23. The rotation stopper 210 engages with the 1 st member 10 to prevent the 2 nd member 20 from rotating relative to the 1 st member 10.

(the 3 rd member 30)

The 3 rd member 30 includes a 1 st cylindrical member 36 and an engaging member K1, and the engaging member K1 includes an engaging portion 35. The 3 rd member 30 may also include at least 1 of the pullout prevention portion 37, the 1 st fixing member F1, and the stopper member 38.

In the example shown in fig. 11, the 1 st cylindrical member 36 includes a 1 st screw portion (33f) and a 2 nd screw portion (33m), the 1 st screw portion (33f) is screwed to the screw rod 23 of the 2 nd member 20, and the 2 nd screw portion (33m) is screwed to the operating member 40. In addition, the 1 st cylindrical member 36 may be formed by combining a part formed with the 1 st screw portion and a part formed with the 2 nd screw portion. In the example shown in fig. 11, the 1 st screw portion (33f) is a female screw portion formed on the inner peripheral surface of the 1 st cylindrical member 36, and the 2 nd screw portion (33m) is a male screw portion formed on the outer peripheral surface of the 1 st cylindrical member 36.

In the example shown in fig. 11, the 1 st tubular member 36 is attached to the 1 st member 10. More specifically, the 1 st tubular member 36 is attached to the 1 st member 10 by inserting the 1 st tubular member 36 into the penetration hole 10h formed in the 1 st member 10 and then attaching the extraction prevention member 37 to the 1 st tubular member 36. The 1 st cylindrical member 36 is fixed to the extraction preventing member 37 by the 1 st fixing member F1. The pullout prevention member 37 may be formed of a nut that is screwed into a screw portion formed on the outer peripheral surface of the 1 st cylindrical member 36. In this situation, after the relative position of the pullout prevention member 37 with respect to the threaded rod 23 has been adjusted, the pullout prevention member 37 is fixed to the 1 st cylindrical member 36 via the 1 st fixing member F1.

In the example shown in fig. 11, the engaging member K1 is an annular member having an engaging portion 35. An engaging portion 35 is formed at an end portion of the engaging member K1 on the 1 st direction DR1 side. The engaging member K1 is attached to the 1 st cylindrical member 36 through a fixing member (more specifically, the 2 nd fixing member F2). In the example shown in fig. 11, the 1 st cylindrical member 36 and the engagement member K1 are relatively non-rotatable. Alternatively, the engaging member K1 may be attached to the 1 st cylindrical member 36 so as to be rotatable relative to the 1 st cylindrical member 36 by a predetermined angle.

The engaging member K1 may include the 1 st surface 31 that defines the upper limit position of the operating member 40. In the example shown in fig. 11, the engagement member K1 has a shoulder Ks, and the lower surface of the shoulder Ks functions as the 1 st surface 31 that defines the upper limit position of the operating member 40.

In the example shown in fig. 11, the 3 rd member 30 has a stopper member 38. The stopper member 38 includes the 2 nd surface 32 that defines the lower limit position of the operating member 40. In the example shown in fig. 11, a recess 36g (e.g., an annular recess) is formed in the outer peripheral surface of the 1 st cylindrical member 36, and the recess 36g is a part that accommodates the stopper member 38. The stopper member 38 is fitted into the recess 36g, whereby the 1 st cylindrical member 36 and the stopper member 38 can be integrated. Further, the stopper member 38 is, for example, a member having a substantially C-shape in plan view.

In the example shown in fig. 11, the movable range of the operation member 40 is defined by the 1 st surface 31 of the engagement member K1 and the 2 nd surface 32 of the stopper member 38.

In the example shown in fig. 11, an annular sleeve member 39 is disposed between the 1 st member 10 and the 3 rd member 30.

(operating means 40)

In the example shown in fig. 10 and 11, the operation member 40 includes a mounting portion 47 (more specifically, a groove portion), and the remote operation stick is detachably mounted to the mounting portion 47. The operating member 40 has a mounting portion 47, whereby it becomes possible to operate the operating member 40 (more specifically, to rotate it in the 1 st rotation direction R1 and/or the 2 nd rotation direction R2) with the remote operating stick. Alternatively, the operating member 40 and the remote operating rod may be integrally formed.

In the example shown in fig. 11, the operation member 40 includes a distal-end-side member 401, a proximal-end-side member 402, and a 3 rd fixing member F3, and the 3 rd fixing member F3 fixes the proximal-end-side member 402 to the distal-end-side member 401.

In the example shown in fig. 11, the distal end side member 401 is a cylindrical member. A pressing portion 46 is formed at an end portion (end portion on the 1 st direction DR1 side) of the distal end side member 401.

The front end side member 401 may have a 3 rd surface 44 that may contact the 1 st surface 31 and/or a 4 th surface 45 that may contact the 2 nd surface 32. In the example shown in fig. 11, the distal member 401 has a shoulder 401s, and the upper surface of the shoulder 401s functions as the 3 rd surface 44. In addition, the front end side member 401 has a protruding portion 401p protruding inward, and the protruding portion 401p includes the above-described 4 th surface 45.

In the example shown in fig. 11, the distal member 401 has a screw portion (43f), and the screw portion (43f) is screwed to the 2 nd screw portion (33 m). In the example shown in fig. 11, the screw portion (43f) is formed on the inner peripheral surface of the protrusion 401 p.

In the example shown in fig. 11, the base end member 402 is formed with the attachment portion 47. In the example shown in fig. 11, the base end side member 402 is a cylindrical member. In the example shown in fig. 11, the base end side member 402 has the partition 402w, but the partition 402w may be omitted.

(method of Using holding tool)

The method of using the gripping tool according to embodiment 2 is the same as that of embodiment 1 except that the mounting step is performed to mount the remote operation stick to the mounting portion 47 of the operation member 40 before step ST1 (in other words, the step of disposing the gripping object W between the 1 ST gripping portion 11 and the 2 nd gripping portion 21) in step 1. In embodiment 2, the mounting step is omitted in a case where the remote operation stick is integrally formed with the operation member.

Embodiment 2 can exhibit the same effects as embodiment 1. In embodiment 2, each member is formed by a combination of a plurality of parts, and it is easy to assemble the gripping tool 1B in embodiment 2.

The present invention is not limited to the above embodiments, and it should be understood that the embodiments may be modified or changed as appropriate within the scope of the technical idea of the present invention. In addition, any component used in each embodiment may be combined with any other embodiment, or any component may be omitted in each embodiment.

Industrial applicability

The gripping tool and the method of using the gripping tool according to the present invention can switch between the locked state and the unlocked state by a simple operation. As a result, the burden on the operator who performs work with the tool can be reduced. Therefore, the present invention is useful for a worker who performs work with a gripping tool and a worker who manufactures the gripping tool.

Description of the reference numerals

1,1A, 1B: holding tool

10: the 1 st component

10 h: through holes

11: 1 st grip part

11 a: 1 st holding surface

15: 2 nd engaging part

15 a: projection part

16: component for giving potential energy

17: concave part

18: long hole

20: no. 2 component

21: 2 nd gripping part

21 a: 2 nd holding surface

23: screw thread stick

23 m: male thread part

30: no. 3 component

31: 1 st plane

32: the 2 nd surface

33 f: female screw portion

33 m: male thread part

35: engaging part

35 a: tooth

36: 1 st cylindrical member

36 g: concave part

37: extraction prevention member

38: stop member

39: sleeve member

40: operating member

43 f: female screw portion

44: no. 3 surface

45: no. 4 surface

46: push part

47: mounting part

210: rotary stopping part

401: front end side member

401 p: projection part

401 s: shoulder part

402: base end side member

402 w: partition wall

F1: 1 st fixing Member

F2: no. 2 fixing member

F3: no. 3 fixing member

K1: engaging member

K2: engaging member

Ks: shoulder part

M: locking mechanism

OP: opening of the container

P1: no. 1 latch member

W: object to be gripped