阅读说明：本技术 带分配器 (Tape dispenser ) 是由 山本尚 福井哲也 于 2021-02-25 设计创作，主要内容包括：本发明提供一种能够利用开闭件合适地封闭将带放出的开口的带分配器。该带分配器具备：第一构件(A),保持带(d1)并具备能够将该带(d1)从内部向外部导出的开口(G)；以及第二构件(B),能够相对于该第一构件(A)进行相对动作,该带分配器通过第一构件(A)与第二构件(B)的第一方向的相对动作从而带(d1)被放出同时封闭开口(G)的开闭件(3)能够向打开该开口(G)的方向驱动。(The invention provides a tape dispenser capable of properly closing an opening for discharging a tape by an opening and closing member. The tape dispenser includes: a first member (A) which holds the belt (d1) and has an opening (G) through which the belt (d1) can be led out from the inside to the outside; and a second member (B) which can move relatively to the first member (A), wherein the tape dispenser can drive the shutter (3) which closes the opening (G) in a direction to open the opening (G) while the tape (d1) is fed out by the relative movement of the first member (A) and the second member (B) in the first direction.)

1. A tape dispenser is provided with: a first member that holds a belt and has an opening through which the belt can be led out from the inside to the outside; and a second member capable of relative motion with respect to the first member, wherein,

the opening/closing member for closing the opening while the tape is paid out can be driven in a direction to open the opening by relative movement of the first member and the second member in the first direction.

2. A tape dispenser is provided with: a first member that holds a belt and has an opening through which the belt can be led out from the inside to the outside; and a second member capable of relative motion with respect to the first member, wherein,

the opening/closing member that closes the opening while the tape is wound back by the relative movement of the first member and the second member in the second direction can be driven in a direction to close the opening.

3. The tape dispenser of claim 1 or 2,

the relative motion is a rotational motion.

4. The tape dispenser of claim 1 or 2,

the first member includes: a base holding the tape; and a cover detachably provided on the base.

5. The tape dispenser of claim 1 or 2,

and a shutter interlocking mechanism that moves the shutter between a closed position at which the shutter can close the opening and an open position at which the opening can be opened, in conjunction with the movement of the second member.

6. The tape dispenser of claim 5,

the opening and closing member link mechanism includes: a first gear disposed on the second member; a link member rotatably supported by the first member, having a plurality of link teeth at a base end portion thereof, the plurality of link teeth being capable of directly or indirectly meshing with the first gear, and having an engagement portion at a distal end portion thereof, the engagement portion being engaged with the shutter; and the shutter supported to be slidable with respect to the first member and having an engaged portion with which the engaging portion is engageable.

7. The tape dispenser of claim 6,

the shutter interlocking mechanism is provided with a driving force transmission limiting portion that is provided between the first gear and the link member and that is capable of limiting transmission of the driving force in the first direction or the second direction by the first gear to the shutter located at the closed position or the open position.

Technical Field

The present invention relates to a tape dispenser capable of discharging a tape.

Background

Conventionally, there is known a tape dispenser configured such that a tape accommodated in an interior through an opening can be discharged to the outside by rotating a part of a main body (see, for example, patent document 1).

However, the conventional tape dispenser cannot be provided with a shutter (english: shutter) capable of closing the opening when not in use, and thus the tape may be accidentally discharged from the opening when not in use, resulting in the tape being inadvertently stuck to the surrounding article.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-222393

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a tape dispenser capable of appropriately opening and closing at least an opening through which a tape is discharged by an opening and closing member.

Means for solving the problems

That is, the present invention has the following configuration.

The invention described in claim 1 is a tape dispenser including: a first member that holds a belt and has an opening through which the belt can be led out from the inside to the outside; and a second member that is movable relative to the first member, wherein the tape is paid out and a shutter that closes the opening is driven in a direction to open the opening by the relative movement of the first member and the second member in the first direction.

The invention described in claim 2 is a tape dispenser including: a first member that holds a belt and has an opening through which the belt can be led out from the inside to the outside; and a second member that is movable relative to the first member, wherein the tape is wound back by the relative movement of the first member and the second member in the second direction, and the shutter that closes the opening is driven in a direction to close the opening.

In the tape dispenser according to claim 1 or 2, in the invention according to claim 3, the relative motion is a rotational motion.

In the tape dispenser according to claim 1, 2, or 3, in the invention according to claim 4, the first member includes: a base holding the tape; and a cover detachably provided on the base.

The tape dispenser according to claim 1, 2, 3, or 4, in the invention according to claim 5, further comprising a shutter interlocking mechanism that moves the shutter between a closed position where the shutter can close the opening and an open position where the shutter can open the opening in conjunction with the movement of the second member.

According to the tape dispenser of claim 5, in the invention of claim 6, the shutter interlocking mechanism includes: a first gear disposed on the second member; a link member rotatably supported by the first member, having a plurality of link teeth at a base end portion thereof, the plurality of link teeth being capable of directly or indirectly meshing with the first gear, and having an engagement portion at a distal end portion thereof, the engagement portion being engaged with the shutter; and the shutter supported to be slidable with respect to the first member and having an engaged portion with which the engaging portion is engageable.

In the tape dispenser according to claim 6, in the invention according to claim 7, the shutter interlocking mechanism is provided with a driving force transmission restricting portion that is provided between the first gear and the link member and that is capable of restricting transmission of the driving force in the first direction or the second direction by the first gear to the shutter located at the closed position or the open position.

ADVANTAGEOUS EFFECTS OF INVENTION

As described above, according to the present invention, it is possible to provide a tape dispenser capable of appropriately opening and closing at least an opening through which a tape is discharged by a shutter.

Drawings

Fig. 1 shows a perspective view of an embodiment of the present invention.

Fig. 2 is a perspective view of the embodiment.

Fig. 3 is an exploded perspective view of the embodiment.

Fig. 4 is an exploded perspective view of the embodiment.

Fig. 5 is a perspective view of the embodiment.

Fig. 6 is a side view for explanation of the operation in this embodiment.

Fig. 7 is a side view for explanation of the operation in this embodiment.

Fig. 8 is a side view for explanation of the operation in this embodiment.

Fig. 9 is a component explanatory diagram in this embodiment.

Fig. 10 is a component explanatory diagram in this embodiment.

Fig. 11 is a component explanatory diagram in this embodiment.

Fig. 12 is a view in the direction W in fig. 7.

Description of the reference numerals

1 … matrix

2 … cover

3 … shutter

A … first Member

B … second member

L … switching member linkage mechanism

d1 … belt

Opening G …

Detailed Description

An embodiment of the present invention will be described below with reference to fig. 1 to 12.

In this embodiment, the present invention is applied to a tape dispenser configured to be able to store a tape d1 having a relatively low shape retention property such as a masking tape or a transparent tape inside and to discharge the tape d1 to the outside.

The tape dispenser includes: a first member a that holds a replacement D, i.e., a tape core D2 around which the tape D1 is wound; a second member B which is relatively movable with respect to the first member a, that is, relatively rotatable with respect to the first member a; an opening/closing member 3 supported so as to be slidable with respect to the first member a between a closed position (E) at which an opening G provided in the first member a can be closed and an open position (F) at which the opening G provided in the first member a can be opened; a tape ejecting section C that ejects and retracts the tape d1 to the outside by rotating the second member B relative to the first member a; and a shutter interlocking mechanism R that moves the shutter 3 between a closing position (E) at which the opening G can be closed and an opening position (F) at which the opening G can be opened, in conjunction with the movement of the second member B.

The tape dispenser includes: a first member a having an opening G through which the tape d1 can be led out from the inside to the outside; and a second member B relatively rotatable with respect to the first member a. The tape dispenser is configured such that the shutter 3, which closes the opening G while the tape d1 is fed to the outside, can be driven in the direction to open the opening G by the relative movement of the first member a and the second member B in the first direction, that is, by the second member B rotating in the normal direction with respect to the first member a. Then, the shutter 3 that closes the opening G while the tape d1 is being wound back inside can be driven in the direction to close the opening G by the relative movement of the first member a and the second member B in the second direction, that is, by reversing the second member B with respect to the first member a.

The respective structures of the tape dispenser will be described in detail below.

< first component A >

The first member a has a cylindrical outer shape. More specifically, the first member a has an outer shape in which both sides of a substantially cylindrical peripheral surface are closed by circular side surfaces. A second member B, which is a disc-shaped member having substantially the same diameter as the first member a and constitutes an operating portion that can be directly rotated by a user, is attached to one side surface of the first member a, that is, to the outer surface side of the side plate a1 of the base 1. An opening G for discharging the tape d1 accommodated in the first member a to the outside is opened in the circumferential surface of the first member a.

The first member a includes a base 1 that holds a refill D and a cover 2 that is detachably attached to the base 1. The refill D is a member in which the tape D1 is wound around a tape core D2.

< replacement D >

The replacement D includes a tape core D2 and a tape D1 wound around a tape core D2. In other words, the tape core D2 constitutes the refill D in a state where the tape D1 is wound.

The tape d1 is a member of a known structure wound around the outer peripheral surface of the cylindrical portion d3 of the tape core d2, and is a tape-shaped member provided with an adhesive layer, not shown, on one surface side.

The belt core d2 includes a cylindrical portion d3 through which the core shaft a3 provided upright on the base 1 is inserted, and a substantially annular side wall portion d4 extending in a flange shape from both edges of the cylindrical portion d 3. The left and right side walls d4 are arranged substantially in parallel.

The refill D of the present embodiment is configured to be connectable to another refill having the same shape via the connection portion D5. More specifically, the connection portions d5 are provided on the left and right side wall portions d4 of the tape core d2, respectively. In one side wall portion d4, coupling convex portions d5(a) as engaging portions that project outward are provided at a plurality of, that is, two locations, and in the other side wall portion d4, coupling holes d5(b) as engaging portions that can couple coupling convex portions d5(a) of other belt cores having the same shape are provided at a plurality of, that is, six locations.

The belt core d2 is set so that the number of the circular-hole-shaped connecting holes d5(b) is larger than the number of the cylindrical-shaped connecting protrusions d5 (a). Thus, the user can easily engage the coupling protrusion d5(a) of one tape core d2 with the coupling hole d5(b) of the other tape core d2 having the same shape.

< substrate 1 >

The base body 1 includes a core shaft a3 that rotatably holds the tape core d 2. The axis of the spindle a3 that is provided to stand substantially perpendicularly to the side plate a1 of the base 1 is disposed at a position offset from the relative rotational center of the first member a and the second member B, that is, at a position not coincident with the coupling hole a2 of the first member a and the coupling shaft B1 of the second member B. In the present embodiment, the stem a3 stands on the position farther from the opening G than the coupling hole a 2.

A coupling hole a2 is provided through the center of the base 1. The coupling hole a2 engages with a coupling shaft B1 provided at the center of the second member B. That is, the coupling hole a2 provided in the base 1 of the first member a is engaged with the coupling shaft B1 provided in the second member B, and the second member B can relatively rotate while being coupled to the first member a.

The base 1 includes a circular side plate a1 and a spindle a3 provided to protrude from the inner surface of the side plate a1 at a position offset from the center of the side plate a1, that is, offset from the relative rotational center of the first member a and the second member B.

The substrate 1 includes: a pair of cover engaging pieces a4, the pair of cover engaging pieces a4 forming a part of a circumferential surface protruding from a peripheral edge of the side plate a 1; a discharge roller holding hole a5 through which a discharge roller 5 is inserted and provided in the vicinity of the peripheral edge of the side plate a1 having the opening G formed therein and which is capable of rotatably holding one end portion of the discharge roller 4; a nipping member support shaft a6 that is provided in the vicinity of the peripheral edge portion of the side plate a1 in which the opening G is formed, and that is capable of rotatably supporting the nipping member 5 that can press the discharge roller 4, and that a nipping member support shaft a6 that protrudes therefrom; and a cantilever-shaped posture maintaining engagement portion a7, the posture maintaining engagement portion a7 being provided at a position adjacent to the nip member support shaft a6 and elastically biasing the nip member 5 in a direction of a separating posture (K) away from the discharge roller 4 by engaging with an engagement piece 53 provided at a base end portion of the nip member 5.

Further, although the nipping member 5 is always biased in the direction of the spaced-apart posture (K) by the posture maintaining engagement portion a7, by attaching the cover 2 to the base 1, the discharge roller 4 can be biased in the pressing posture (J) by the cover 2 against the elastic biasing force of the cantilever-shaped posture maintaining engagement portion a 7. More specifically, the posture holding portion 22e capable of pressing the sandwiching member 5 in the pressing posture (J) direction is disposed on the cover 2.

The substrate 1 includes: a wind-in preventing roller holding hole a8 through which the wind-in preventing roller holding hole a8 is inserted and provided at a position closer to the peripheral edge of the side plate a1 than the discharge roller holding hole a5 and which can hold one end of the wind-in preventing roller 6 rotatably; and a second gear support shaft a9 provided so as to protrude from the second gear support shaft a9 at a position adjacent to the feed-out roller holding hole a5 and the winding-in preventing roller holding hole a8 and rotatably supporting a second gear m2 that meshes with the first gear m1 provided on the second member B.

The base 1 further includes a roller pressing member S attached to the side plate a1 and capable of rotatably supporting one end of the feed roller 4 and the winding-in prevention roller 6. A guide groove, not shown, is provided at the outer edge of the roller pressing member S, and the guide projection 33a provided in the rear plate portion 33 of the shutter 3 engages therewith.

The side plate a1 of the base 1 is provided with a relay member support shaft a15 capable of rotatably supporting the relay member R1 constituting the shutter interlocking mechanism R and a link member support shaft a16 capable of rotatably supporting the link member R2 constituting the shutter interlocking mechanism R. The relay member r1 is engageable with the first gear m1 and is engageable with a relay member engagement tooth r21 provided to the link member r 2. The link member r2 can be engaged with the relay member r1 and can be engaged with the shutter 3.

The side plate a1 of the base 1 is provided with an elastically deformable cantilever-shaped rotation restricting engagement portion a13 which can engage with the engagement protrusion r11 provided on the relay member r1 and can restrict the rotation of the relay member r1 to a predetermined position. As will be described later, the rotation restriction engagement portion a13 constitutes a driving force transmission restriction portion Q in the shutter interlocking mechanism R.

< cover 2 >

The cover 2 is detachably attached to the base 1. A knife H for cutting the tape d1 is attached to the cover 2 such that the cutting edge faces the opening G. The cover 2 includes a disk-shaped side wall 21 and a peripheral wall 22 integrally extending from a peripheral edge of the side wall 21 and constituting a main part of a peripheral surface of the first member a.

On the inner surface side of the side wall 21, there are provided: a first auxiliary projection 21a which is engaged with the cylindrical portion d3 of the tape core d2 supported by the mandrel a3 and which can assist the posture of the tape core d 2; and a second auxiliary protrusion 21b that is engaged with a base end portion of the crimping member 5, that is, a pivoting portion of the crimping member 5 that is pivoted to the crimping member support shaft a6, and that can assist the posture of the crimping member 5.

The peripheral wall 22 includes: an opening notch portion 22a, the opening notch portion 22a forming an opening G; a knife holding portion 22b provided at a position adjacent to the opening notch portion 22a, the knife holding portion 22b being capable of holding a knife H for cutting the tape d 1; a fitting notch portion 22c into which a part of the cover engagement portion a4 provided on the base 1 can be fitted; and an engagement hole 22d provided between the fitting notch 22c and the side wall 21, and into which an engagement protrusion a41 provided at the tip end of the cover engagement portion a4 is engaged.

A sheet-like posture holding portion 22e capable of holding the crimping member 5 in the pressing posture (J) is provided at a position closer to the center than the blade holding portion 22 b. The posture holding portion 22e can restrict the rotation of the crimping member 5 from the pressing posture (J) to the separating posture (K) direction by pressing the crimping member 5 in the pressing posture (J) direction.

< shutter 3 >)

The shutter 3 can close and open the opening G of the first member a in conjunction with the rotation of the second member B. The shutter 3 is positioned between the side plate a1 constituting the base 1 and the roller pressing member S, and is supported so as to be slidable with respect to the base 1. The shutter 3 is configured to be movable along the circumferential surface of the first member a between a closing position (E) capable of closing the opening G of the first member a and an opening position (F) capable of opening the opening G of the first member a and capable of ejecting the tape d1 outward.

The shutter 3 includes: a front plate portion 31, the front plate portion 31 being a plate-shaped bent so as to protrude outward and constituting a peripheral surface that is always exposed to the outside of the first member a at the closed position (E) and the open position (F); a rear plate portion 33, the rear plate portion 33 being provided continuously with the front plate portion 31 via a step portion 32; and a link portion 34, the link portion 34 extending integrally in a cantilever shape from the rear end portion of the rear plate portion 33 toward the inside.

The rear plate portion 33 is formed in a plate shape curved so as to protrude outward, similarly to the front plate portion 31, and is provided at a position shifted toward the center of the first member a from the front plate portion 31. The rear plate portion 33 is capable of closing the opening G at the closing position (E) and retreats to the inner surface side of the peripheral wall 22 at the opening position (F).

The rear plate portion 33 has guide projections 33a projecting outward on the left and right outer sides. The left and right guide projections 33a engage with a guide groove a12 provided in the side plate a1 and a guide groove, not shown, provided in the roller pressing member S.

The shutter 3 can stably move on the rail between the closed position (E) and the open position (F) by the engagement of the left and right guide projections 33a with the guide grooves a 12. At the end edge of the rear wall portion 33 on the side of the side plate a1, a locking claw engaging portion 33b that engages with a locking claw a11 in a cantilever shape provided on the side plate a1 at the open position (F) is provided so as to protrude. The locking claw engagement portion 33b provided to protrude from the shutter 3 is engaged with the locking claw a11 of the side plate a1 at the open position (F), whereby the shutter 3 is configured to be able to be stabilized at the open position (F).

The link portion 34 constitutes a shutter link mechanism R. The link portion 34 is formed with a groove-shaped link member engagement recess 34a serving as an engaged portion, into which an engagement convex portion r22 serving as an engagement portion provided in the link member r2 can be engaged.

The shutter 3 can be changed in position from the closed position (E) to the open position (F) in conjunction with the operation of discharging the tape d1 by rotating the second member B in the forward direction. The shutter 3 can be changed in position from the open position (F) to the closed position (E) by reversing the second member B.

< second component B >)

The second member B is attached to the first member a so as to be rotatable relative to the first member a. The second member B constitutes an operation portion that is gripped and rotated when the user releases the tape d 1.

The second member B is attached to one side surface of the first member a so as to be rotatable relative to the first member a. The second member B is a disk-shaped member having substantially the same diameter as the first member a. A coupling shaft B1, with which the coupling hole a2 provided in the base 1 of the first member a is engaged, is formed in the center of the second member B.

The second member B includes: a second member body b2 in which a finger hooking portion b21 for preventing slipping of fingers is formed at an outer edge of a disk-shaped second member body b 2; and a first gear m1 integrally provided on the inner surface side of the second member main body b2 with the axis thereof aligned with each other in the first gear m 1.

The first gear m1 is located on the outer surface side of the side plate a 1. The first gear m1 meshes with the second gear m2 (constituting the tape drawing portion C) pivotally supported by the side plate a1 of the first member a and meshes with the relay member R1 (constituting the shutter interlocking mechanism R) pivotally supported by the side plate a1 of the first member a. Further, in relay member r1, a plurality of first gear teeth r12 that mesh with first gear m1 along the rotation center thereof are arranged in a partial arc shape.

A plurality of depression portions b22 for engaging the stopper are arranged in the circumferential direction on the back side of the finger hooking portion b21 which is the inner peripheral surface of the second member body b 2. The recessed portion b22 is engaged with a stopper engagement portion a14 provided in a cantilever manner in the base 1 near the outer periphery of the side plate a 1.

< Belt Pull-out section C >

The tape drawing-out portion C draws out and feeds out the tape d1 from the tape core d2 to the outside while nipping the tape d1 in conjunction with the relative rotation of the second member B with respect to the first member a. In other words, the tape dispenser is provided with the tape drawing-out portion C that draws out and feeds out the tape d1 from the tape core d2 to the outside while nipping the tape d1 in conjunction with the relative rotation of the second member B with respect to the first member a.

The tape drawing portion C is provided to the first member a. That is, the tape drawing unit C includes: a discharge roller 4 that is rotatable in the direction of the discharge belt d1 in response to relative rotation of the second member B with respect to the first member a in the normal rotation direction; a nip member 5 capable of nipping the tape d1 with the discharge roller 4 by pressing the tape d1 disposed on the discharge roller 4 toward the discharge roller 4 by the nip member 5; and a roll-in prevention roller 6, the roll-in prevention roller 6 being disposed outside the discharge roller 4 and being rotatable in the same direction as the discharge roller 4.

< pay-off roller 4 >

The discharge roller 4 includes: a base 41, the base 41 having a cylindrical shape; a third gear m3, which is a gear provided integrally with the base 41 at an end of the base 41 on the side of the side plate a1 and meshes with a second gear m2, which is a gear, disposed on the base 1; and a plurality of ring members 43, wherein the plurality of ring members 43 are arranged at intervals on the outer peripheral surface of the base portion 41. The ring member 43 is a flexible synthetic resin member. The discharge roller 4 is connected to the second member B via a gear train and is rotatable in conjunction with the rotation of the second member B. That is, the discharge roller 4 can discharge the tape d1 to the outside in conjunction with the normal rotation operation of the second member B and can rewind the tape d1 to the inside in conjunction with the reverse rotation operation of the second member B.

As shown in fig. 12, the portions (the base portion 41 and the ring member 43) of the feed roller 4 that engage with the belt d1 are configured in such a shape that the center portion in the left-right direction is recessed in the axial direction from both the left and right ends as a whole.

< clamping member 5 >

The crimping member 5 includes: a plate-shaped crimping member main body 51, a base end portion of the crimping member main body 51 being supported by a crimping member support shaft a 6; a pressing roller 52 rotatably supported by a distal end portion of the nip member main body 51 and directly pressing the interposed tape d1 toward the discharge roller 4 side; and an engagement piece 53, wherein the engagement piece 53 is provided at the base end portion of the crimp member body 51 so as to protrude in the direction opposite to the extending direction of the crimp member body 51. The nip member 5 can take a pressing posture (J) in which the discharge roller 4 can be pressed in a state in which the cover 2 is attached, and can take a separating posture (K) in which the cover 2 can be separated from the base 1 (a state in which the refill D can be attached), in which the cover is separated from the base 1 and the nip member is separated from the discharge roller 4 by an elastic biasing force of the posture maintaining engagement portion a7 provided in the base 1.

As shown in fig. 12, the pressing roller 52 is configured such that the portion engaging with the belt d1 as a whole has a shape (barrel shape) in which the left-right direction center portion is expanded outward than the left-right direction both end portions.

As described above, the portion of the feed roller 4 that engages with the tape d1 has a concave shape that follows the barrel-shaped pressing roller 52. Therefore, the tape d1 can be bent and pinched by the cooperation of the discharge roller 4 and the pressing roller 52, and the straight running property of the tape d1 can be stabilized.

It is to be noted that the overall shape of the portion of the pressing roller 52 that engages with the tape d1 (the barrel shape) and the overall shape of the portion of the feed roller 4 that engages with the tape d1 (the concave shape along the barrel shape) may be reversed.

< rolling in preventive roll 6 >

The wind-in preventing roller 6 includes: a base portion 61, the base portion 61 having a cylindrical shape; a fourth gear m4, which is a gear provided integrally with the base 61 at an end of the base 61 on the side of the side plate a1 and meshes with the second gear m2 disposed on the base 1; and a plurality of tape guide portions 63, the plurality of tape guide portions 63 protruding in a flange shape from the outer peripheral surface of the base portion 61, and the peripheral edge of each of the plurality of tape guide portions 63 being attachable to the tape d 1. At the peripheral end edge of the tape guide portion 63, fine acute-angled projections 63a are provided in an aligned manner so that the tape d1 is difficult to attach. The entanglement preventing roller 6 is connected to the second member B via a gear train and is rotatable in conjunction with the rotation of the second member B. That is, the winding-in preventing roller 6 rotates to be able to feed the tape d1 outward in conjunction with the normal rotation of the second member B and rotates to be able to wind back the tape d1 inward in conjunction with the reverse rotation of the second member B.

< shutter interlocking mechanism R >)

The shutter link mechanism R includes: a first gear m1, the first gear m1 being provided to the second member B; a relay member r1 rotatably supported by the first member a and having first gear engaging teeth r12 that engage with the first gear m of the second member B; a link member r2 rotatably supported by the first member a and having at a base end portion thereof a relay member engaging tooth r21 that engages with a link member engaging tooth r13 provided on the relay member r1 and at a tip end portion thereof a cylindrical engaging convex portion r22 serving as an engaging portion that engages with the shutter 3; and an opening/closing tool 3 supported so as to be slidable between a closed position (E) and an open position (F) with respect to the first member a, the opening/closing tool 3 including a link member engagement concave portion 34a as an engaged portion with which an engagement convex portion r22 of a link member r2 is engageable.

The shutter interlocking mechanism R is provided with a driving force transmission restriction portion Q that is provided between the first gear m1 and the link member R2 and that is capable of restricting transmission of the driving force in the first direction, i.e., the normal rotation direction, to the shutter 3 located at the open position (F) by the first gear m 1.

< Relay means r1 >)

The relay member r1 is rotatably supported by a relay member support shaft a15 provided on the base 1. The relay member r1 includes: a plurality of first gear engaging teeth r12 provided along the relay member support shaft a15 in a partial circular arc shape and capable of engaging with the first gear m 1; a link member engaging tooth r13 which is provided in plurality along the relay member support shaft a15 in a partially circular-arc shape and which is capable of engaging with a relay member engaging tooth r21 arranged in a partially circular-arc shape at a base end portion of the link member r 2; and an engaging protrusion r11 which extends outward and is engageable with a rotation restricting engaging portion a13 provided on the base 1 at a predetermined position.

< Link Member r2 >

The link member r2 has a base end portion rotatably supported by a link member support shaft a16 provided on the base 1 and a distal end portion extending in the direction of the shutter 3 and engaging with the shutter 3. The link member r2 includes: a plurality of relay member engaging teeth r21 provided along the link member support shaft a16 at the base end portion in a partial circular arc shape in the relay member engaging teeth r21 and engageable with the link member engaging teeth r13 of the relay member r 1; and an engaging convex portion r22 as an engaging portion, the engaging convex portion r22 being provided to protrude from the distal end portion and being capable of engaging with the link member engaging concave portion 33b provided to the link portion 34 of the shutter 3.

< Driving force Transmission restriction portion Q >

The driving force transmission regulating portion Q is mainly configured by a relay member r1 having a first gear engaging tooth r12 as a plurality of teeth arranged in a partial circular arc shape and capable of engaging with the first gear m1, and a rotation regulating engaging portion a13 which engages with an engaging projection r11 provided on the relay member r1 to regulate the rotation of the relay member r1 to a predetermined position, in the relay member r 1.

That is, as shown in fig. 8, when the relay member r1 is rotated by the driving force generated by the normal rotation operation of the first gear m1, the engagement projection r11 of the relay member r1 comes into contact with the rotation restriction engagement portion a13 having a cantilever shape at a predetermined stage, that is, at a stage when the shutter 3 reaches the open position (F). Thereafter, even if the relay member r1 attempts to rotate by receiving the driving force in the normal rotation direction from the first gear m1, the cantilever-shaped rotation restriction engagement portion a13 is elastically deformed, and the first gear teeth r12 arranged in a partial arc shape in the relay member r1 and the first gear m1 are not engaged with each other (see the portion denoted by reference numeral V in fig. 8). That is, when the driving force transmission restriction portion Q is operated, the driving force in the normal rotation direction is not transmitted to the relay member r1, the link member r2, and the shutter 3 via the first gear m 1.

At this time, the engagement relationship between the second member B having the first gear m1 and the relay member r1 is released, and therefore the normal rotation operation can be continued. Therefore, if the second member B is rotated forward, the feeding operation of the tape d1 can be continued. That is, the first gear m1 of the second member B is appropriately engaged with the driving force transmission system of the tape ejecting section C for ejecting the tape d1, and therefore, if the second member B is rotated forward, the ejection of the tape d1 can be continued.

Further, the relay member r1 maintains a predetermined posture while avoiding transmission of the driving force from the first gear m1 by the rotation restriction engagement portion a 13. Therefore, when the second member B is reversely rotated, the first gear m1 can be appropriately engaged with the first gear engagement tooth r12 of the relay member r1, and the shutter 3 can be moved from the open position (F) to the close position (E).

Next, the operation of the tape dispenser will be described.

First, the base 1 of the first member a is attached with the replacement D, i.e., the tape core D2 around which the tape D1 is wound. As shown in fig. 3 to 5, the engaging piece 53 of the crimping member 5 is urged by the posture-maintaining engaging portion a 7. Therefore, in the state where the cover 2 is detached from the base 1, the crimping member 5 is held in the separated posture (K) in which the tape d1 is easily attached.

Next, the tip end of the tape d1 supported by the base 1 is pulled outward by a certain amount with fingers, and the pulled-out portion of the tape d1 is brought into contact with the discharge roller 4.

Thereafter, by attaching the cover 2 to the base 1, the nipping member 5 in the separated posture (K) is pressed by the posture holding portion 22e provided in the cover 2 and changed to the pressing posture (J). Thereby, a part of the drawn tape d1 is nipped by the discharge roller 4 and the nip member 5.

Through the above operations, the preparation operation before use is completed.

Next, the operation of the discharge belt d1 and the operation of the shutter 3 will be described.

When the second member B is rotated in the forward direction with respect to the first member a, the second gear m2 engaged with the first gear m1 integrated with the second member B rotates. The pay-out roller 4 having the third gear m3 meshing with the second gear m2 and the entanglement preventing roller 6 having the fourth gear m4 meshing with the second gear m2 rotate in the forward direction in conjunction with the rotation of the second member B.

The tape d1 nipped by the discharge roller 4 and the nip member 5 is pulled out to the outside in conjunction with the rotation of the discharge roller 4 receiving the driving force. Even when the belt d1 drops, the winding-in preventing roller 6 is guided in an appropriate direction, i.e., in the direction of the opening G, by the belt guide 63 rotating in the forward direction, and the belt d1 is prevented from being wound in the inside.

In addition, when the second member B is rotated in the positive direction with respect to the first member a, the relay member r1 that meshes with the first gear m1 also rotates. The relay member R1 constitutes a shutter interlocking mechanism R that can open and close the shutter 3 in conjunction with the rotation of the second member B. That is, the shutter interlocking mechanism R also operates in interlocking with the tape drawing unit C.

When the second member B is rotated in the forward direction with respect to the first member a, the driving force is transmitted to the shutter 3 via the first gear m1, the relay member r1, and the link member r2, and the shutter 3 is interlocked from the closed position (E) toward the open position (F). That is, when the relay member r1 rotates in the forward direction, the link member r2 also rotates in conjunction with the forward direction, and the engagement convex portion r22 provided in the link member r2 moves the shutter 3 from the closed position (E) to the open position (F) by the cam action of the engagement convex portion r22 and the link member engagement concave portion r22 while pressing the link member engagement concave portion 34a formed in the link portion 34 of the shutter 3.

Thereafter, when the shutter 3 reaches the open position (F), the step portion 32 engages with the opening notch portion 22a of the peripheral wall 22 to prohibit further movement of the shutter 3. At this time, the forward driving force is not applied to the shutter 3 that has reached the open position (F) by the action of the driving force transmission restricting portion Q provided in the shutter interlocking mechanism R.

That is, even when the user rotates the second member B further in the forward direction after the shutter 3 moves to the open position (F), the driving force transmission restriction portion Q functions, and the first gear m1 and the first gear engagement tooth r12 provided in the relay member r1 are no longer appropriately engaged (see the portion denoted by reference numeral V in fig. 8), so that the first gear m1 idles against the relay member r 1.

When the second member B is rotated in the reverse direction with respect to the first member a, the driving force is transmitted to the shutter 3 via the first gear m1, the relay member r1, and the link member r2, and the shutter 3 is interlocked from the open position (F) to the close position (E). That is, the relay member r1 is also engaged with the first gear m1 to rotate in the reverse direction and the link member r2 is also rotated in the reverse direction in an interlocking manner, and the shutter 3 is moved from the open position (F) to the closed position (E) by the cam action of the engaging convex portion r22 and the link member engaging concave portion r22 while the engaging convex portion r22 provided to the link member r2 presses the link member engaging concave portion 34a formed in the link portion 34 of the shutter 3.

Further, when the second member B is rotated in the reverse direction with respect to the first member a, the tape pull-out portion C also operates together with the shutter interlocking mechanism R, and therefore the distal end portion of the tape d1 located in the vicinity of the opening G is pulled back inward.

When the shutter 3 reaches the closed position (E), the power transmission system of the shutter linkage mechanism R including the first gear m1 is locked, and therefore the reverse rotation operation of the second member B is also locked.

As described above, the tape dispenser of the present embodiment includes: a first member a holding the tape d1 and having an opening G through which the tape d1 can be led out from the inside to the outside; and a second member B that is capable of performing a relative movement, i.e., a rotational movement, with respect to the first member a. The shutter 3 that closes the opening G while the tape d1 is paid out can be driven in the direction to open the opening G by the relative rotational movement of the first member a and the second member B in the first direction.

Therefore, in the tape dispenser of the present embodiment, the opening G through which the tape d1 is fed can be appropriately opened and closed by the shutter 3. In other words, when the second member B is rotated forward relative to the first member a, the shutter 3 can move in the direction of opening the opening G and the end of the tape d1 accommodated inside can be led out through the opening G, so that the automatic opening and closing function of appropriately protecting the tape d1 by the shutter 3 when not in use and opening the shutter 3 while discharging the tape d1 when in use can be appropriately performed, and the use convenience is excellent.

In the tape dispenser, the shutter 3 that closes the opening G while the tape d1 is being rewound can be driven in a direction to close the opening G by the relative movement of the first member a and the second member B in the second direction.

Therefore, in the tape dispenser of the present embodiment, the opening G through which the tape d1 is fed can be appropriately opened and closed by the shutter 3. In other words, when the second member B is reversed with respect to the first member a, the shutter 3 can move in the direction to close the opening G while the end of the tape d1 accommodated inside can be introduced from the vicinity of the opening G to the inside, and therefore, the tape d1 can be appropriately protected by the shutter 3 when not in use and the end of the tape d1 retracts inward when the shutter 3 is closed and hardly hits the shutter 3. That is, even when the tape is changed to the unused state, the automatic opening/closing function of closing the shutter 3 while the tape d1 is rewound can be appropriately performed, and the tape is excellent in usability.

The first member a includes a base 1 holding the strap d1 and a cover 2 detachably provided on the base 1. Therefore, the tape d1 can be held on the base 1 by attaching and detaching the cover 2.

The opening/closing device is provided with an opening/closing device interlocking mechanism R for moving the opening/closing device 3 between a closing position (E) capable of closing the opening G and an opening position (F) capable of opening the opening G in interlocking with the rotational movement of the second member B.

Therefore, the opening and closing operation of the shutter 3 can be interlocked with the second member B which also functions as the discharge operation portion of the tape d1, and therefore, the operability is excellent.

The shutter link mechanism R includes: a first gear m1, the first gear m1 being provided to the second member B; a link member r2 rotatably supported by the first member a and having at a base end portion thereof a relay member engaging tooth r21 that is a plurality of teeth indirectly engageable with the first gear m1 via a relay member r1, and at a tip end portion thereof an engaging convex portion r22 that is an engaging portion with which the shutter 3 is engaged; and an opening/closing tool 3 supported so as to be slidable relative to the first member a, the opening/closing tool 3 including a link member engagement recess 34a as an engaged portion with which the engagement convex portion r22 of the link member r2 is engageable.

Therefore, the link portion 34 provided in the shutter 3 is engaged with the link member r2 pivotally supported by the first member a, whereby the opening and closing operation of the shutter 3 is appropriately performed.

The shutter interlocking mechanism R is provided with a driving force transmission restriction portion Q which is provided between the first gear m1 and the link member R2 and which is capable of restricting transmission of the driving force in the first direction, i.e., the normal rotation direction, by the first gear m1 to the shutter 3 located at the open position (F).

Therefore, after the shutter 3 is moved to the open position (F) by the action of the shutter interlocking mechanism R, the driving force generated by the normal rotation operation of the second member B is not transmitted to the shutter 3, and therefore the shutter 3 can be appropriately positioned at the open position (F) and the feeding operation of the tape d1 by the tape feeding portion C can be continued.

Furthermore, the present invention is not limited to the above-described embodiments.

The type of the tape can be applied to various types, and is not limited to a tape having low shape retention.

The relative movement of the first member and the second member is not limited to the rotational movement, and may be a linear movement.

The specific configurations of the first member and the second member may be variously modified without departing from the scope of the present invention.

The structure of the shutter interlocking mechanism may be any structure as long as it is interlocked with the operation of the second member. For example, as a power transmission system for converting the rotation of the second member into the opening/closing operation of the shutter, a power transmission system having various configurations using a mechanism such as a gear train or a belt can be applied.

For example, the link member of the shutter interlocking mechanism may be connected to the first gear without the intermediary of a relay member, or may be a member in which the link member directly engages with the first gear.

The specific structure of the driving force transmission restriction portion is not limited to the structure shown in the above embodiment. For example, the power transmission limiting unit may be a member capable of limiting transmission of the driving force in the reverse direction by the first gear to the shutter located at the closed position.

The tape ejecting section is not limited to the one shown in the above embodiment, as long as the tape is ejected outward by rotating the second member relative to the first member. For example, the gear train for transmitting the rotation of the second member to the rotation of the discharge roller can be variously set. Further, the rotation of the second member may be transmitted to the feed roller or the winding-in preventing roller via the belt.

The specific configuration of each portion is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.