阅读说明：本技术 卡车的前驾驶室倾翻支撑装置 (Front cab tilting support device of truck ) 是由 金大洙 于 2020-09-28 设计创作，主要内容包括：本发明提供一种卡车的前驾驶室倾翻支撑装置,其可以包括：支撑杆,其连接车身和前驾驶室；支撑柄和钩环,其设置于所述支撑杆；以及锁定机构,其设置于所述支撑柄,其中,所述锁定机构包括旋转柄,所述旋转柄经由柄轴可旋转地联接至所述支撑柄,其中,在随着所述前驾驶室沿着预定方向旋转而支撑杆直线延伸的所述前驾驶室的倾翻状态下,所述前驾驶室的倾翻状态被构造成通过所述锁定机构和所述钩环之间的接合来维持。(The present invention provides a front cab tilt supporting apparatus of a truck, which may include: a support bar connecting the vehicle body and the front cab; a support handle and a shackle provided to the support rod; and a lock mechanism provided to the support handle, wherein the lock mechanism includes a rotation handle rotatably coupled to the support handle via a handle shaft, wherein, in a rollover state of the front cab in which a support rod linearly extends as the front cab rotates in a predetermined direction, the rollover state of the front cab is configured to be maintained by engagement between the lock mechanism and the shackle.)

1. A front-cabin roll-over support apparatus of a vehicle, comprising:

a support bar connecting the vehicle body and the front cab;

a support handle and a shackle provided to the support rod; and

a locking mechanism provided to the support handle;

wherein the locking mechanism comprises a rotation handle rotatably coupled to the support handle via a handle shaft;

in a tilted state of the front cab in which the support rod extends as the front cab rotates in the predetermined direction, the tilted state of the front cab is configured to be maintained by engagement between the lock mechanism and the shackle.

2. A front-cabin rollover support apparatus for a vehicle according to claim 1, wherein:

the support rod includes an upper support rod and a lower support rod rotatably coupled to each other via a connection pin, the upper support rod being rotatably coupled to a front cab, the lower support rod being rotatably coupled to a vehicle body;

the support handle is rotatably mounted to the upper support rod portion, and the shackle is fixedly mounted to the lower support rod portion.

3. The front-cabin rollover support apparatus of a vehicle according to claim 2, wherein the shackle is an "L" shaped bracket that protrudes from the lower support bar portion and then is bent in a longitudinal direction of the lower support bar portion.

4. A front-cabin rollover support apparatus for a vehicle according to claim 2, wherein:

the upper support rod part comprises a handle pin connected with the support handle;

the lower support rod part includes a groove to which a handle pin of the upper support rod part is selectively engaged according to rotation of the upper support rod part and the lower support rod part.

5. A front-cabin rollover support apparatus for a vehicle according to claim 1, wherein said locking mechanism further comprises:

a gear member and a rotation shaft connected to each other, wherein the stem is engaged to the gear member to sequentially transmit a rotation force of the stem to the rotation shaft via the gear member, wherein the rotation shaft and the stem are rotatably installed in the support handle; and

a stopper fixed to a first end of the rotation shaft to rotate together with the rotation shaft.

6. A front-cabin rollover support apparatus for a vehicle according to claim 5, wherein:

a second end portion of the rotary shaft is joined to a first end portion of the stem via the gear member;

the second end of the stem is fixedly connected to the rotation handle.

7. A front-cabin rollover support apparatus for a vehicle according to claim 6, wherein:

the gear member includes a first bevel gear and a second bevel gear;

the second end portion of the rotary shaft includes the first bevel gear, and the first end portion of the stem includes the second bevel gear that meshes with the first bevel gear.

8. The front-cabin rollover support apparatus of a vehicle according to claim 5, wherein a locked state in which the support lever is locked to the lower support lever portion is maintained such that rotation of the support lever is prohibited when the stopper is engaged with the shackle, and the stopper is switched to an unlocked state to enable the support lever to rotate relative to the lower support lever portion when the stopper is disengaged from the shackle.

9. A front-cabin rollover support apparatus of a vehicle according to claim 1, wherein the rotation handle is rotatably coupled to the support handle via a handle shaft to extend in a longitudinal direction of the support handle at an end of the support handle.

10. A front-cabin rollover support apparatus for a vehicle according to claim 5, wherein:

when the stopper is rotated in a first direction by a predetermined angle in an unlocked state in which the stopper is not engaged with the shackle so that the stopper is rotated and engaged with the shackle, the support handle becomes a locked state in which rotation of the support handle is prohibited;

when the rotation handle is rotated in a second direction opposite to the first direction by a predetermined angle in a locked state to return to its original position such that the stopper is rotated and disengaged from the shackle, the support handle becomes an unlocked state in which the support handle can be rotated.

11. The front cab tilt support apparatus of a vehicle of claim 10, wherein the predetermined angle is 90 degrees.

12. A front-cabin rollover support apparatus of a vehicle according to claim 1, wherein one of the support handle and the rotation handle is provided with at least one hemispherical recess, and the other of the support handle and the rotation handle is provided with at least one hemispherical protrusion, such that when the rotation handle is rotated, a rotation angle of the rotation handle with respect to the support handle is determined by engagement of the at least one hemispherical protrusion into the at least one hemispherical recess.

13. A front-cabin rollover support apparatus for a vehicle according to claim 12, wherein:

the rotation handle includes a flange portion protruding from a surface of the rotation handle;

an end of the flange portion includes a hemispherical recess or a hemispherical protrusion to selectively engage to one of the at least one hemispherical recess or the at least one hemispherical protrusion.

14. A front-cabin roll support apparatus of a vehicle according to claim 12,

wherein a flange portion is further formed to protrude from a surface of the rotation handle in a right-angle direction, and a hemispherical protrusion is provided on a surface of the flange portion to be selectively engaged to at least one hemispherical groove.

15. The front-cabin rollover support apparatus of a vehicle according to claim 1, wherein signs or letters indicating a locked state and an unlocked state of the support lever are indicated on the rotation lever at angular intervals of a predetermined angle.

16. The front cab tilt support apparatus of a vehicle of claim 15, wherein the predetermined angle is 90 degrees.

Technical Field

The present invention relates to a front cab tilting support device for a truck, and more particularly, to a technique of a front cab tilting support device for a truck which can improve convenience and safety when a front cab is tilted.

Background

Typically, medium and small trucks comprise: a front cab provided with a driver seat and a front passenger seat; and a rear tray which is a space for loading goods; wherein the front cab is provided with a roll-over structure, which can be rotated forwards by a mechanic, for example, when the vehicle needs to be serviced.

The front cab can be maintained in a forwardly rotated tilted state by a tilt support device connecting the vehicle body and the front cab. In the conventional roll-over supporting apparatus, after a support rod connecting the front cab and the vehicle body is linearly extended, a safety pin is inserted into the support rod to prevent the support rod from rotating, thereby maintaining the roll-over state of the front cab. However, there are disadvantages as follows: the workability is deteriorated due to the difficulty in inserting the safety pin into the hole of the support bar, and in some cases, safety accidents are frequently caused due to the omission of the task of inserting the safety pin by a mechanic.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

Various aspects of the present invention are directed to provide a front cab tilt supporting apparatus configured to perform a tilt supporting operation of a front cab through a simple rotation operation of a rotation handle coupled with a support handle, thereby improving safety and operational convenience.

In various aspects of the present invention, there is provided a front cab tilt support apparatus of a truck according to various aspects of the present invention, including: a support bar connecting the vehicle body and the front cab; a support handle and a shackle provided to the support rod; and a lock mechanism provided to the support handle, wherein the lock mechanism includes a rotation handle rotatably coupled to the support handle via a handle shaft, wherein, in a rollover state of the front cab in which a support rod linearly extends as the front cab rotates in a predetermined direction, the rollover state of the front cab is configured to be maintained by engagement between the lock mechanism and the shackle.

The support rod may include an upper support rod part and a lower support rod part rotatably coupled to each other via a connection pin, the upper and lower support rod parts being rotatably coupled to the front cabin and the vehicle body, respectively, and the support handle may be rotatably coupled to the upper support rod part at a connection part between the upper and lower support rod parts, and the shackle is fixedly mounted to the lower support rod part.

In a state where the upper and lower support lever parts linearly extend, the shackle may be an "L" -shaped bracket protruding from one side of the lower support lever part and then bent upward.

The support mechanism may include: a gear member and a rotation shaft connected to each other to sequentially transmit a rotation force of the stem; and a stopper coupled to one end of the rotation shaft to rotate together with the rotation shaft, and configured to maintain a locked state in which the support handle is locked to the lower support lever part such that the support handle cannot rotate when the stopper is engaged with the shackle, and to switch to an unlocked state such that the support handle can rotate when the stopper is disengaged from the shackle.

The rotation handle may be rotatably coupled via the handle shaft to extend in a longitudinal direction of the support handle at an end of the support handle.

The support handle may become a locked state in which the support handle cannot rotate when the stopper is rotated at an angle of 90 degrees in one direction in an unlocked state in which the stopper is not engaged with the shackle so that the stopper is rotated and engaged with the shackle, and may become an unlocked state in which the support handle can rotate when the rotation handle is rotated at an angle of 90 degrees in an opposite direction in the locked state to return to its original position so that the stopper is rotated and disengaged from the shackle.

The contact surfaces of the support handle and the rotation handle may be provided with a hemispherical recess and a hemispherical protrusion, respectively, such that when the rotation handle is rotated, the rotation angle of the rotation handle with respect to the support handle is determined by the insertion of the protrusion into the recess.

The flange portion may be further formed to protrude in a right-angle direction from a contact surface of the rotation handle, and a hemispherical protrusion may be provided on the contact surface of the flange portion.

In the rotation handle, signs or letters indicating the locked state and the unlocked state of the support handle may be indicated at angular intervals of 90 degrees.

According to the front-cabin roll-over supporting apparatus of the present invention, when the rotation handle coupled to the support handle is rotated, the stopper is engaged/disengaged with the shackle provided on the lower support rod, so that the support handle is switched between the locked state and the unlocked state, while achieving the effect of performing roll-over support of the front cabin through a simple rotation operation of the rotation handle, improving convenience and safety of operation.

Other features and advantages of the methods and apparatus of the present invention will be more particularly apparent from or elucidated with reference to the drawings described herein, and subsequently, described in conjunction with the accompanying drawings, which serve to explain certain principles of the invention.

Drawings

Fig. 1 is a view exemplarily illustrating a rollover state of a front cab rotated forward by a front cab rollover support apparatus according to various exemplary embodiments of the present invention;

fig. 2 is a view exemplarily showing a support rod extending along a straight line from the state of fig. 1;

fig. 3 is a view exemplarily showing a state where the support lever is folded when the front cab is tilted down;

fig. 4 is a view exemplarily illustrating an unlocked state in which a stopper is not engaged with a shackle in the tilt support device according to various exemplary embodiments of the present invention;

fig. 5 is a view exemplarily showing a portion of fig. 4 to which a rotation handle is attached;

fig. 6 is a view exemplarily showing a process of rotating the rotation handle in a clockwise direction in fig. 4;

fig. 7 is a view exemplarily showing a portion of fig. 6 to which a rotation handle is attached;

FIG. 8 is a view exemplarily showing a locked state in which the rotation handle of FIG. 4 is rotated by 90 degrees clockwise so that the stopper is engaged with the shackle;

FIG. 9 is a side view of FIG. 8; and

fig. 10 is a view exemplarily showing a portion of fig. 8 to which a rotation handle is attached.

It should be understood that the drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular application and environment of use contemplated.

In the drawings, reference numerals refer to identical or equivalent parts of the invention throughout the several views of the drawings.

Detailed Description

Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the invention to those exemplary embodiments. On the other hand, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

The specific structural and functional descriptions of the exemplary embodiments of the present invention included herein are merely exemplary, illustrating exemplary embodiments according to various exemplary embodiments of the present invention, which are implemented in various forms and should be understood not to be limited to the exemplary embodiments described in the various exemplary embodiments of the present invention or application.

Since exemplary embodiments according to various exemplary embodiments of the present invention can be variously modified into various forms, specific embodiments will be shown and described in detail in the drawings and the description of the present invention. However, it is not intended that the exemplary embodiments in accordance with the inventive concept be limited to the particular forms disclosed, but to be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element discussed below could be termed a second element without departing from the teachings of the present invention.

It will be understood that when an element is referred to as being "coupled" or "connected" to another element, it can be directly coupled or connected to the other element or intervening elements may be present therebetween. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present. Other expressions describing the relationship between components, such as "between" and "directly between" or "adjacent" and "directly adjacent," may also be interpreted in the same manner.

The terminology used herein is for the purpose of describing various exemplary embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, values, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, values, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

A front cab rollover support apparatus according to various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, a medium-small truck includes: a front cab 1 provided with a driver seat and a front passenger seat; and a rear pallet 2, which is a space for loading goods; wherein the front cab 1 is provided with a roll-over structure, which can be rotated forward by a mechanic, for example, when the vehicle needs to be serviced.

Fig. 1 is a view exemplarily showing a tilted state in which a front cab 1 is rotated forward, fig. 2 is a view exemplarily showing a support bar 100 extending along a straight line, and fig. 3 is a view exemplarily showing a state in which the support bar 100 is folded when the front cab 1 is tilted downward.

The roll-over state for keeping the front cab 1 rotated forward may include a roll-over support device 4 connecting the vehicle body 3 and the front cab 1.

As shown in fig. 1 to 10, a front cab rollover support apparatus 4 of a truck according to an exemplary embodiment of the present invention includes a support bar 100, a support handle 200 and a shackle 300, the support bar 100 connecting a vehicle body 3 and a front cab 1, the support handle 200 and the shackle 300 being provided to the support bar 100, and a locking mechanism 400 being provided to the support handle 200 such that a rollover state of the front cab 1 is maintained by engagement between the locking mechanism 400 and the shackle 300 in a rollover state of the front cab 1 in which the front cab 1 is rotated forward and the bar 100 extends along a straight line.

The support bar 100 includes an upper support bar part 110 and a lower support bar part 120.

A bracket 111 is fixedly coupled to front cab 1, and an upper portion of upper support lever 110 is rotatably coupled to bracket 111 via a first pin 112. A bracket 121 is fixedly coupled to the vehicle body 3 below the front cab 1, and a lower portion of the lower support lever 120 is rotatably coupled to the bracket 121 via a second pin 122.

The lower portion of the upper support bar 110 and the upper portion of the lower support bar 120 are fitted to overlap each other, and the connection pin 130 is coupled to the overlapping portion, so that the upper support bar 110 and the lower support bar 120 are coupled to each other in a structure rotatable around the connection pin 130.

In an exemplary embodiment of the present invention, the lower support bar 120 may include a groove 125, and the shank pin 210 of the upper support bar 110 and the groove 125 of the lower support bar 120 are coupled to each other in a rotatable structure around the connection pin 130.

The support handle 200 is rotatably coupled to the upper support bar part 110 via a handle pin 210 at a connection part of the upper and lower support bar parts 110 and 120, and the shackle 300 is fixedly provided on the lower support bar part 120.

The shackle 300 is formed as a bracket of an "L" shape protruding to one direction and is bent upward in a state where the upper and lower support lever parts 110 and 120 linearly extend, and the shackle 300 may be fixedly welded to the lower support lever part 120.

The locking mechanism 400 includes a rotation handle 420, a gear member 430 and a rotation shaft 440, and a stopper 450, the rotation handle 420 being rotatably coupled to the support handle 200 via the handle shaft 410, the gear member 430 and the rotation shaft 440 being connected to sequentially transmit a rotation force of the handle shaft 410, the stopper 450 being coupled to the rotation shaft 440 to rotate together with the rotation shaft, thereby obtaining a locked state in which the support handle 200 cannot rotate when engaged with the shackle 300 during rotation of the rotation shaft 440, and an unlocked state in which the support handle 200 can rotate about the handle pin 210 when the stopper is disengaged from the shackle 300.

The rotation handle 420 is rotatably coupled via a handle shaft 410 to extend in the longitudinal direction of the support handle 200 at the end of the support handle 200 for easy operation by an operator.

The stem 410 and the rotation shaft 440 extend along the longitudinal direction of the support stem 200. The stem 410 and the rotation shaft 440 are installed at a predetermined angle along the shape of the support handle 200. The stem 410 and the rotary shaft 440 are connected to allow power transmission through the gear member 430. The gear member 430 is preferably, but not limited to, a bevel gear provided for power transmission of the stem 410 and the rotation shaft 440 forming an obtuse angle.

The stopper 450 is an L-shaped bracket, one end of which is coupled to the rotation shaft 440 to rotate together with the rotation shaft 440, and when the rotation shaft 440 rotates, the other end of the stopper 450 rotates toward the shackle 300 to be engaged with or disengaged from the shackle 300.

That is, from the unlocked state where the stopper 450 is disengaged from the shackle 300 as shown in fig. 4, when the stopper 450 is rotated at an angle of 90 degrees in one direction as shown in fig. 8, the stopper 450 is rotated and switched to the locked state where the stopper 450 is engaged with the shackle 300, so that the support handle 200 cannot be rotated.

Accordingly, when the rotation handle 420 is rotated by 90 degrees in the opposite direction and returned to the state of fig. 4 from the locked state of fig. 8, the stopper 450 is rotated and disengaged from the shackle 300, so that the support handle 200 is switched to the unlocked state in which the support handle can be rotated.

On the other hand, the contact surfaces of the support handle 200 and the rotation handle 420 are provided with a hemispherical recess 220 and a hemispherical protrusion 460, respectively, such that the protrusion 460 is inserted into the recess 220 to determine the rotation angle of the rotation handle 420 during the rotation of the rotation handle 420.

On the other hand, unlike the above-described embodiment, the contact surface of the support handle 200 is provided with hemispherical protrusions, and the contact surface of the rotation handle 420 is provided with hemispherical recesses.

The contact surface of the front end portion of the support handle 200 is linear, and two grooves 220 are formed on the linear contact surface at an angular interval of 180 degrees. Further, the contact surface of the rotation handle 420 is also in a linear shape, and the two protrusions 460 are formed to be disposed on the contact surface of the linear shape at angular intervals of 180 degrees. The flange portion 470 is further formed to protrude orthogonally from the contact surface of the rotation handle 420, and the hemispherical protrusion 460 is further provided on the contact surface of the flange portion 470.

A total of three protrusions 460 are provided on the rotation handle 420 at angular intervals of 90 degrees.

Therefore, when the rotation of the rotation handle 420 is restricted as the two protrusions 460 are inserted into the two grooves 220 as shown in fig. 4 to 5, the support handle 200 is switched to the unlocked state in which the support handle is rotatable.

When the rotation handle 420 is rotated clockwise at an angle of 90 degrees from the unlocked state as described above, as shown in fig. 8, 9 and 10, only one protrusion 460 provided in the flange portion 470 is inserted into the groove 220, so that the rotation of the rotation handle 420 is restricted, thereby switching to the locked state in which the support handle 200 cannot be rotated.

Further, when the rotation handle 420 is rotated counterclockwise at an angle of 90 degrees from the locking state and returned to the original position as shown in fig. 4 to 5, the two protrusions 460 are inserted into the two grooves 220 again, so that the rotation of the rotation handle 420 is restricted, thereby switching back to the unlocking state in which the support handle 200 is rotatable.

In the rotation handle 420, marks or letters 480 (icons) for indicating the locked and unlocked states of the support handle 200 are indicated at angular intervals of 90 degrees, respectively. The operator can visually know the locked state or the unlocked state of the support handle 200 through the logo or text 480.

As described above, according to the exemplary embodiment in which the stopper 450 is engaged with the shackle 300 or disengaged from the shackle 300 when the rotation handle 420 coupled to the support handle 200 is rotated, when the stopper 450 is engaged with the shackle 300, the support handle 200 is switched to the locked state in which the support handle cannot be rotated, thereby maintaining the tilted state in which the front cab 1 is rotated forward, and when the stopper 450 is disengaged from the shackle 300, the support handle 200 is switched to the rotatably unlocked state, thereby the front cab 1 rotated forward may be rotated to its original position.

Therefore, the front-cabin rollover support apparatus according to various exemplary embodiments of the present invention is configured to allow the rollover support operation of the front cabin 1 to be achieved through a simple rotation operation of the rotation handle 420 coupled to the support handle 200, contributing to improvement of convenience and safety of operation.

For convenience in explanation and accurate definition in the appended claims, the terms "above", "below", "inner", "outer", "upper", "lower", "upward", "downward", "front", "rear", "back", "inside", "outside", "inward", "outward", "inner", "outer", "forward" and "rearward" are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures. It will be further understood that the term "connected," or derivatives thereof, refers to both direct and indirect connections.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable others skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the following claims and their equivalents.