KR20180092076A - Wing door locking apparatus of wing body truck - Google Patents

Abstract

The present invention is to provide a wing door locking apparatus capable of maintaining a locked state while adjusting the height of a door in response to a rise and fall of the door. The present invention relates to the wing door locking apparatus for locking or unlocking a wing door mounted on a frame, a center post, or a side gate of a wing-bodied automobile, which opens and closes both sides of a loading box, according to operation of a lever. The present invention includes a slider fixed to the frame, a center post, and a side gate of the loading box to guide lift movement, and the slider mounted on a track so as to be movable up and down along the track. Therefore, the locked state can be maintained even when the wing door is elevated above the reference height or higher than the original installation height.

Description

{WING DOOR LOCKING APPARATUS OF WING BODY TRUCK}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a wing door of a wing-type truck, which is a method of opening and closing both sides of a container-type loading box by rotating a wing door up and down like a wing, And prevents the side gate and the center post from being completely opened due to the contact with the vehicle body when the center post is opened or the contact between the body post and the vehicle body due to contact interference with the vehicle body. In addition, when the height of the wing door is adjusted in accordance with the lifting / lowering of the wing door, Which can maintain the locked state even when the door is in the raised state.

Generally, the loading box of a commercial vans can not protect the cargo from snow or rain, and the cargo can be easily poured into the road due to a leaning phenomenon during transportation. In recent years, various kinds of cargo-specific vehicles such as so-called top cars, wing bands, or van-type trucks, which can mount and load various cargoes more safely and efficiently, have become mainstream.

Most of these cargo specially designed cars are constructed by assembling and installing the cargo boxes on the undercarriages of commercial trucks that have been shipped from the car makers, mainly in the form of boxes or containers with doors on at least one side.

Among the cargo specially equipped vehicles, the wingbody car has the advantage that the wing door is rotated or lifted up and down like a wing to open and close both sides of the loading / unloading cargo, so that the cargo loading and unloading operation is convenient and the transportation efficiency is high.

1 shows an example of a wingbody vehicle. As shown in the figure, the wing door 2 is rotated around a girder formed at the center of a ceiling of the loading box 1 to open and close both sides of the loading box 1, The door 2 is openable or closed in accordance with the locking and unlocking of the locking device 4 mounted on the frame or side gate 3 of the loading box 1.

A center post 5 for stably supporting the closed state of the side gate 3 is provided at the central portion of the side gate 3 constituting the loading box 1, When the side gate 3 is opened, the center post 5 also rotates at an angle of about 180 degrees around the hinge, and when the side gate 3 is closed, The center post 5 also remains vertically erected by the locking action of the hook-releasing clamp 6.

2 and 3 show a lock device for a wing door of a wingbody vehicle disclosed in Korean Patent No. 10-1605784. The locking device includes a locking protrusion 130 and a rotation support portion 120, which are fixed to the base plate 110, A grip lever 200 connected to the pivot support part 120 by a hinge and rotatable in a vertical direction and having a long pivot lever hinge hole 221 formed along the length thereof, A connecting link 300 rotatably connected to the lever hinge hole 221 by a hinge and a locking part 300 rotatably connected to the other end of the connecting link 300 by a hinge and capable of contacting the outer surface of the wing door, And a locking position where the locking part 410 is locked by the locking protrusion 130 to prevent the opening of the wing door from being released from the locking protrusion 130, Move to free end position Pivoting possible, and consists of a locking member 400 contacts the stop 415 is applied to the surface formed of the handle lever 200, when released from the restraint protrusion 130.

In order to restrain the locking member 400, that is, to allow the third hinge pin 430 to be easily positioned between the base plate 110 and the locking projection 130 beyond the locking projection 130, A concave groove 140 is formed between the engaging protrusion 120 and the engaging protrusion 130.

Here, since the locking device for the wing door is made of a metal material and has a certain weight, the connecting link 300 and the locking member 400 can be easily rotated downward by their own weight when the locking member 400 is in the unlocked state, As the jersey contact portion 415 is caught on the free end surface of the handle lever 200, it is damaged or hits the frame or the side gate forming the loading box, resulting in a blunt sound, or scratches or deformation Can be prevented.

However, in the conventional locking device for a wing door, since the upper surface of the locking protrusion 130 is formed in a horizontal plane and the groove 140 is formed in a semicircular shape, when the locking and releasing device is substantially operated and unlocked, The end portion is directly contacted with the boundary portion between the engaging protrusion 130 and the groove portion 140 so that the handle lever 200 is raised only in a state of being substantially perpendicular to the base plate 110 as shown in FIG. When the side gate and the center post are fully opened for the up and down operation of the cargo, the handle lever 200 rotates in an inverted state and protrudes toward the vehicle body, collides with the safety guard of the vehicle body or the vehicle, Or damage the vehicle.

In addition, side gates and center posts can not be completely opened at about 180 degrees due to contact interference between the handle lever 200 and the vehicle body. Therefore, when the cargo is moved by a forklift or the like to a sewer stand called a pallet, The fork that lifts and transports the cargo is not fully inserted into the loading box, which causes considerable inconvenience and difficulty in the operation.

Further, in order to prevent the locking member 400 from being struck by the self-weight while striking the side gate in the unlocked state, the blocking contact portion 415 causing contact interference with the handle lever 200 is adjusted to the contour of the handle lever 200 There is a limit in productivity because the molding process is complicated and additional cost is required because it is required to finely and secondarily process in a bent shape.

Meanwhile, in recent years, in order to maximize the amount of load and efficiency and to minimize the cost of logistics, the loading and unloading operation of the wingbody vehicle is made more convenient and easy, and the height and the height of the loading box are adjusted to adjust the volume and space appropriately according to the cargo. The vehicle is in the limelight.

For example, Korean Patent No. 10-0493872 discloses a wing-bodied vehicle having a structure in which a total height of a loading box is variable by selectively raising and lowering a loading box ceiling portion and a wing door of a wing bed vehicle.

However, even if a wing-bodied vehicle has a variable height, it is necessary to adjust the height of the loading box to a height specified by the Automobile Management Act and the Road Traffic Act, that is, 4m or less. When the load ceiling and wing door are lowered in order to comply with applicable regulations after loading the cargo to the maximum, it is often the case that it does not descend to the reference height by the girders located on the cargo ceiling ceiling, It is necessary to operate the vehicle in the unlocked state because the vehicle can not be locked by the locking device fixed to the vehicle. Therefore, there is a limit that the wing door is opened during the operation and the cargo falls to the road.

It is to be understood that the above-described techniques are intended to assist the understanding of the present invention, and are not to be construed as meaning that the present invention is well known in the art to which the present invention belongs.

KR10-1605784 B1 (2016.03.17) KR10-0983025 B1 (2010.09.13) Y2 (2002.11.05) KR10-0493872 B1 (2005.05.27) KR10-0539162 B1 (2005.12.21) KR10-1181905 B1 (2012.09.05) KR20-0209224 Y1 (2000.10.24)

Accordingly, the present inventor has focused on solving the limitations and problems of the conventional wing door lock system by considering the above-mentioned matters in a comprehensive manner, and when the side gate and the center post of the loading box are opened for the up and down operation of the cargo, By preventing the side gate and center post from being completely opened due to damage or contact with the car body, and by adjusting the height automatically in response to the lifting and lowering of the wing door, the wing door is higher than the reference height, The inventors of the present invention have made efforts to develop a wing door locking device of a new structure capable of maintaining a stable locking state even in an elevated state.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method of preventing a side gate and a center post from being completely opened due to a collision with a vehicle body or the like, To provide a wing door lock.

It is another object of the present invention to provide a wing door locking device capable of maintaining a locked state even when the wing door is elevated above the reference height or higher than the original installation height.

Herein, the technical object and object to be solved by the present invention are not limited to the technical object and purpose mentioned above, and another technical object and purpose not mentioned can be understood by those skilled in the art from the following description.

According to a first aspect of the present invention, there is provided a wing vehicle comprising: a frame, a center post, and a side gate that form a loading box of a wingbody vehicle, And a second hinge hole having a slot-like shape formed at an intermediate portion thereof, the wing door having a first hinge hole formed at one end portion in the longitudinal direction thereof and a second hinge hole formed at an intermediate portion thereof, ; A track fixed in the frame, the center post, and the side gate of the loading box to guide the elevating movement; A slider mounted to move up and down along the track while being constrained to the track; A third hinge hole is formed at a lower portion of the lever to be engaged with the first hinge pin to be connected to the hinge joint by the hinge joint, A holding block having a space formed between the third hinge holes to prevent contact interference due to upward and downward rotation of the lever; A locking latch having a fourth hinge hole formed at one end thereof so as to be held or engaged with the lower edge of the wing door according to the operation of the lever; The lever and the locking latch are connected to each other by hinges at both sides of the lever and the holding block, and one end of the lever is connected to the lever by a second hinge pin which is fitted in the second hinge hole of the lever, A link connected to the locking latch by a third hinge pin which is inserted through a fourth hinge hole of the locking latch; The first hinge pin is inserted between the first hinge pin inside the lever and the second hinge pin so that the third hinge pin is elastically engaged with the hook portion of the holding block according to the operation of the lever, And a spring for giving a resilient force so as to maintain a state in which it is caught or adhered to the lower edge of the wing door lock device.

Accordingly, it is possible to prevent the side gate and the center post from being completely opened due to a collision with the vehicle body or the like when the side gate and the center post of the cargo loading and unloading operation are carried out for contact with the vehicle body or the like.

In addition, since the height of the wing door is adjusted naturally in response to the lifting and lowering of the wing door, the locking state can be stably maintained even when the wing door is higher than the reference height or raised from the original installation height.

A specific means according to the second embodiment of the present invention is to lock or unlock a wing door which is mounted in a frame, a center post, or a side gate of a wingbody vehicle and which opens and closes both sides of the loading box, The wing door locking device comprising: a track fixed to the frame, the center post, and the side gate of the loading box to guide the lifting movement; A slider mounted to move up and down along the track while being constrained to the track; A hook portion integrally formed on the upper portion of the slider; Wherein a slider is connected to a lower portion of the slider by a hinge and a slot is formed on a surface of the slider opposite to the hook so as to allow a portion of the hook to penetrate therethrough, the lever being hingedly connected to a front surface between the hinge and the slot, A locking latch which holds the lower edge of the wing door in a locked state or a close state according to an operation of the lever; A hook having one end hingedly connected to the lever; And a spring that elastically urges the locking latch to engage with the lower edge of the wing door or to maintain a close contact state when the hook is engaged with the hook by elastic operation of the lever. Present wing door lock.

Thus, according to the present invention, the height of the wing door is automatically adjusted in accordance with the lifting and lowering of the wing door, so that the locking state can be stably maintained even when the wing door is higher than the reference height or higher than the original installation height.

According to a preferred embodiment of the present invention, upper and lower stoppers may be formed at upper and lower ends of the track to prevent movement of the slider and prevent the slider from coming off the track.

According to another preferred embodiment of the present invention, a latching protrusion is formed on the lower edge of the wing door, a latching portion for latching the latching jaw of the wing door is formed on the upper end of the locking latch, And the slider is mounted to the track so that the catch portion of the locking latch holds the lifting and fixing position corresponding to the hooking position of the wing door, The lock state can be stably maintained more flexibly and effectively even in a raised state.

Further, in another preferred embodiment of the present invention, a surface of the space portion of the holding block adjacent to the hook portion is laid at an angle of at least 20 degrees with respect to the slider in the unlocked state, And a locking groove is formed on the outer surface of the hook portion so that a part of the outer circumferential surface of the third hinge pin can be stably fitted into the locking groove. When the locking latch is in the unlocked state, The length of the lever is formed to be long enough to cause contact interference when the locking latch rotates downward to prevent the frame, the center post, and the side gate of the loading box from rotating to strike the side gate. Thus, When the gate and center post are opened, they may be damaged by being hit by the vehicle body, Further it ensures that the side gate and the center post, due to interference contact is not fully opened and can be prevented effectively.

An embodiment of the present invention having the means and structure for solving the above-mentioned object and the object of the present invention is to provide a slider which moves up and down along a track in response to lifting and lowering of a wing door Since the height of the locking latch that locks the lower edge of the wing door can be adjusted naturally, it is possible to maintain the lock state even when the wing door is raised above the reference height of the loading box or the original installation height.

Therefore, it is possible to lock the wing door regardless of whether the wing door is lifted or not, and also it is possible to prevent a safety accident such as a cargo falling on the road or a traffic accident by opening the wing door during the operation of the vehicle.

Furthermore, it is not necessary to accurately match the position of the loading door with the lower edge of the wing door or the predetermined height of the loading box during the manufacturing process of the loading door, thereby greatly improving the speed, ease and efficiency of the mounting operation.

One side of the space of the holding block is curved so that the lever is laid at an angle of at least 20 degrees with respect to the slider in the unlocked state so as to make a line or point contact. The lever and the center post can be prevented from being damaged by collision with the vehicle body, such as warping or bending, and the side gate and the center post can not be completely opened due to contact interference with the vehicle body and the like.

Therefore, it is possible to minimize the inconvenience caused by the failure rate and the failure by improving the durability and the life span, and it is possible to improve the ease and convenience of the work by eliminating the interference in the cargo loading and unloading using the forklift.

Here, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a side view showing an example of a wing bird truck.
2 is an exploded perspective view showing a wing door lock apparatus according to the prior art.
3 is a perspective view of a conventional wing door lock device.
4 is a perspective view illustrating a locked state of the wing door lock device according to the first embodiment of the present invention.
5 is a longitudinal sectional view showing a locked state of the wing door lock device according to the first embodiment of the present invention.
6 is a side view showing a local portion of a wing door lock apparatus according to the first embodiment of the present invention.
FIG. 7 is a longitudinal sectional view showing the unlocked state of the wing door lock device according to the first embodiment of the present invention. FIG.
8 is a longitudinal sectional view showing an operating state of the wing door locking device according to the first embodiment of the present invention.
FIG. 9 is a longitudinal sectional view showing a state in which the center post with the wing door locking device according to the first embodiment of the present invention is fully opened.
10 is a perspective view of a wing door locking device according to a second embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions of the present invention, and they are to be construed to mean concepts that are consistent with the technical idea of the present invention and interpretations that are commonly or commonly understood in the technical field of the present invention.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, when a part includes an element, it does not exclude other elements unless specifically stated otherwise, but may include other elements.

In the following description, when the wing door lock device according to the embodiment of the present invention is mounted on the loading box, the side facing the loading box is referred to as the back side, the side opposite to the back side and facing outwardly is the front side, Both sides are defined as sides.

≪ Embodiment 1 >

As shown in FIGS. 5 to 9, the wing door lock apparatus according to the first embodiment of the present invention is mounted on a frame, a center post (CP), a side gate, or the like of a container type stacker of a wingbody vehicle, The track 20, the slider 30, the holding block 40, the locking latch 50, the link 60, and the wing door W for opening and closing the wing door W. [ And a spring (70).

The lever 10 has a function of switching the locking and unlocking states of the wing door W in accordance with the up-and-down rotation operation. At one end of the lever 10 in its lengthwise direction, A first hinge hole 11 for connecting the link 60 to the first hinge pin 11 and a second hinge pin P2 for connecting the link 60 to the hinge pin, A second hinge hole 12 is formed.

The length of the lever 10 is formed such that the length of the locking latch 50 causes contact interference when the locking latch 50 is rotated downward by its own weight in the unlocked state, as shown in Fig.

That is, the lever 10 rotates downward about the second hinge pin P2 as the center of the locking latch 50 so as to prevent a frame or a center post (CP) And is formed to have a length that causes direct contact interference with the surface of the latch 50.

Therefore, it is not necessary to further elaborately process the locking latch 50 in a bent shape in accordance with the outer shape of the lever 10 so as to cause contact interference with the lever 10, so that the locking latch 50, Can be simply formed and manufactured.

Here, the lever 10 may be formed with a plurality of finger grooves (not shown) at regular intervals to facilitate gripping in use.

At the same time, the locking latch 50 and the link 60 are engaged with the slider 30 and the holding block 40, The locking and unlocking states can be achieved while folding or unfolding as it overlaps.

The track 20 serves as a guiding function for guiding the wing door lock device including the slider 30 to move up and down in a sliding motion. The track 20 includes a frame or a center post CP, Riveting, or the like.

The lever 10, the holding block 40, the locking latch 50, the link 60, and the like, which are positioned and fixed to the front surface of the slider 30, And an opening portion 23 for allowing the lifting and lowering operation to be carried out smoothly is formed.

That is, the track 20 has a shape in which the shape of the cross section is symmetrically bent in a "C" shape with respect to the opening 23 so that the slider 30 is restricted and moved up and down while being trapped in the space The opening 23 is formed to have a width slightly larger than the left and right widths of the lever 10, the holding block 40, the locking latch 50, and the link 60.

Upper and lower stoppers 21 and 22 are formed at the upper and lower ends of the track 20 to prevent the slider 30 from moving and being separated from the track 20.

The upper stopper 21 may be fixed to the frame, the center post CP, the side gate, or the like, by welding, bolting, riveting, or the like for ease of manufacturing and assembly.

A bolt hole, such as a counter sink, may be formed on the surface of the frame 20, the center post CP, and the side facing the side gate to facilitate bolting.

The slider 30 has a function of sliding along the track 20 with the lever 10, the track 20, the holding block 40, the locking latch 50, the link 60 and the spring 70 mounted thereon And is mounted on the track 20 so as to be able to move up and down along the track 20 while being restrained by the track 20.

That is, the slider 30 is formed in the shape of a rectangular plate so as to be able to move up and down while being trapped in the space under the restriction of the track 20, and its upper and lower lengths are formed shorter than the vertical length of the track 20, The width is formed to be slightly narrower than the lateral width of the track 20 for smooth sliding movement.

The holding block 40 has a function of supporting the lever 10 and maintaining the locking state of the locking latch 50. The holding block 40 is fixed to the center portion of the slider 30 by welding or the like, As shown in Fig.

A hook portion 41 for hooking the second hinge pin P2 is formed on the upper portion of the holding block 40 and a hook portion 41 for hooking the first hinge pin 11 to the first hinge hole 11 of the lever, A third hinge hole 42 in which the hinge pin P1 is inserted is formed and a contact interference due to the upward and downward rotation of the lever 10 is prevented between the hook portion 41 and the third hinge hole 42 A space portion 43 is formed.

A surface of the space portion 43 of the holding block adjacent to the hook portion 41 is in a state in which the lever 10 lies in an unlocked state at an angle of at least 20 degrees with respect to the slider 30 to make a line or point contact And a contact groove 45 is formed on the outer surface of the hook portion 41 so that a part of the outer circumferential surface of the third hinge pin P3 can be stably fitted and closely contacted with the outer surface of the hook portion 41 .

The locking latch 50 is a function of engaging or closing the lower edge of the wing door W to lock or unlock the wing door W. When the lever 10 is operated, Is hingedly connected to the link (60) so as to be held or tightly engaged with the lower edge of the wiper (W).

That is, a third hinge pin (P3) and a fourth hinge hole (51) for connection with a hinge are formed at one end of the locking latch (50).

A catching jaw J is formed at the lower edge of the wing door W and a catching portion 52 is formed at the upper end of the locking latch 50 to engage the catching jaw J of the wing door.

That is, the catching portion 52 of the locking latch is formed so as to naturally maintain the ascending and descending position of the slider 30 with respect to the track 20 depending on the position where the catching portion J of the wing door is hooked.

Here, the locking jaw J of the wing door may be formed by a separate member so as to protrude downward from the lower edge of the wing door W, or may be formed by attaching to the lower edge of the wing door W Or may be integrally formed so as to have a shape.

The outer circumferential surface of the locking latch 50 may be covered with or attached with an elastic body such as rubber, silicone, synthetic resin, etc., which is flexible and resiliently deformed by an external force and absorbs and mitigates the impact.

The locking latch 50 also has a configuration and structure that partially restricts the angle of relative rotation with the link 60 to prevent the locking latch 50 from turning over too much against the link 60 during locking or unlocking ≪ / RTI >

The link 60 functions to move the locking latch 50 to the locked and unlocked states and positions in accordance with the operation of the lever 10. The lever 10 and the locking latch 50 are hinged Respectively.

In other words, the link 60 is supported by the lever (10) and the lever (40) by the second hinge pin (P2), which is one end in the longitudinal direction and which is fitted in the second hinge hole (12) 10 and a third hinge pin P3 that is rotatably connected to the locking latch 50 at a predetermined angle range and the other end is inserted through the fourth hinge hole 51 of the locking latch. And is rotatably connected in a range.

Here, the link 60 may have a structure separated into a pair of left and right, but it is preferable that the link 60 is formed as a single type or an integral type.

The third hinge pin P3 is resiliently engaged with the hook portion 41 of the holding block by the operation of the lever 10 so that the locking latch 50 engages with the lower edge of the wing door W And is mounted between the first hinge pin P1 and the second hinge pin P2 on the inner side of the lever 10. [

That is, the spring 70 is positioned between the first hinge pin P1 and the second hinge pin P2 so that the position of the second hinge pin P2 in the second hinge hole 12 according to the rotation operation of the lever 10 And the locking latch 50 provides a resilient force so that the locking latch 50 can hold or forcefully restrain the latching state or the close state of the lower edge of the wing door W. [

Here, it is preferable that the spring 70 use a compression coil spring that provides a force to repel the applied load, but it is not limited thereto, and it is possible to use the spring 70 having the same action effect, that is, Anything can be used.

The main operation and principle of the wing door locking device according to the first embodiment of the present invention will be described as follows.

8, the wing door lock apparatus according to the first embodiment of the present invention includes a lever 10, a track 20, a holding block 40, a locking latch 50, It is possible to freely move up and down according to the guidance of the track 20 while the link 60 and the spring 70 are mounted. Therefore, even if the wing door W is higher than the reference height or higher than the original installation height, To lock the lower edge portion of the wing door (W) with the locking latch (50).

For example, when the wing door W is closed at a predetermined reference height or the original installation height of the loading box, the slider 30 is lowered by its own weight and is positioned at the lowermost portion of the track 20, 50 can be locked or locked with the lower edge of the wing door W. When the wing door W is closed higher than the reference height of the loading box or higher than the original installation height, The slider 30 can be locked by pushing up the slider 30 to the upper portion of the track 20 and then hooking the locking latch 50 to the engaging jaw J formed on the lower edge portion of the wing door W. At this time, The state automatically adjusted to a predetermined height can be stably maintained by the supporting force between the locking latch 50 and the locking jaw J formed at the lower edge portion of the wing door W. [

Accordingly, the height of the wing door W can be adjusted and varied naturally in response to the elevation of the wing door W, and the locked state of the wing door W can be stably maintained in that state.

9, when one side of the space portion 43 of the holding block is in contact with the slider 30 so that the lever 10 can lie at an angle of at least 20 degrees with respect to the slider 30 in the unlocked state, And a curved surface 44. When the lever 10 is in the unlocked state, the slider 30 is laid at an angle of at least 20 degrees with respect to the slider 30, so that the side gate and the center post It is possible to prevent the lever 10 and the like from being damaged due to the collision with the vehicle body or the like when the door 10 is opened and to prevent the side gate and the center post from being completely opened due to contact interference with the vehicle body, The ease and convenience can be improved.

In addition, since the lever 10 is formed to have a length that causes direct contact interference with the surface of the locking latch 50 when it freely rotates downward about the second hinge pin P2, the locking latch 50 is locked It is possible to reliably block the frame, the center post CP, the side gate and the like constituting the loading box by rotating with their own weight in the releasing state and to prevent damage to the lever 10 or the like caused by it, .

≪ Embodiment 2 >

10, the wing door lock apparatus according to the second embodiment of the present invention includes a frame or a center post CP constituting a container type loading box of a wingbody vehicle, A slider 30, a hook portion 41, a locking latch 50, a hook 65 and a spring (not shown) for locking or unlocking the wing door W. The lever 10, the track 20, 70).

The hook portion 41 has a function of maintaining the locking state of the locking latch 50 and is fixed to the upper portion of the slider 30 by welding or integrally formed with the slider 30. [

The locking latch 50 is a function of engaging or closing the lower edge of the wing door W to lock or unlock the wing door W. When the lever 10 is operated, And is hingedly connected by the lower portion of the slider 30 and the first hinge pin P4 so as to be held or tightly engaged with the lower edge of the wiper W. [

That is, at one end of the slider 30, a locking latch 50 and a first hinge hole 35 for connection with a hinge are formed.

Here, the first hinge hole 35 of the slider is preferably formed so that the width of the first hinge hole 35 is narrow so as to prevent contact interference with the track 20 for smooth sliding movement of the slider 30.

A catch portion 52 is formed at the upper end of the locking latch 50 to engage the engagement jaw J of the wing door.

A slot 55 is formed in a surface of the locking latch 50 facing the hook portion 41 so that a portion of the hook portion 41 passes therethrough and the first hinge pin P4 and the slot 55 , The lever 10 is hingedly connected by the second hinge pin P5.

The upper portion of the locking latch 50 is formed so as to be steppedly bent so that the catch portion 52 stably engages or adheres to the lower edge of the wing door W. [

The hook 65 serves to maintain the locking state of the locking latch 50. One end in the longitudinal direction is hinged by the intermediate portion of the lever 10 and the third hinge pin P6 It is connected.

The spring 70 is in a state in which the hook 65 is elastically engaged with the hook portion 41 in accordance with the operation of the lever 10 so that the locking latch 50 is engaged or tightly engaged with the lower edge of the wing door W And is mounted between the second hinge pin P5 and the third hinge pin P6 in the form of being wound around the outer circumferential surface of the lever 10. [

Here, among the components related to the wing door lock apparatus according to the second embodiment of the present invention, the components having the same or similar operational effects as those of the first embodiment described above use the same reference numerals, The description is omitted.

The wing door lock apparatus according to the second embodiment of the present invention is constructed in such a manner that the slider 30 is supported by the lever 10, the track 20, the hook portion 41, the locking latch 50, Since the wing door W can be moved up and down according to the guidance of the track 20 while the wing door 70 is mounted, even if the wing door W is higher than the reference height or higher than the original installation height, The lower edge portion of the wing door W can be locked by the user.

Accordingly, the height can be changed naturally in response to the lifting and lowering of the wing door W, so that the locking state can be stably maintained.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments or constructions. Various changes and substitutions may be made without departing from the spirit and scope of the invention. It will be obvious to those skilled in the art that the present invention can be widely applied to other embodiments.

Therefore, it is to be understood that modifications and variations of the features of the present invention are intended to be included within the spirit and scope of the present invention.

10: lever 11: first hinge hole
12: second hinge hole 20: track
21: upper stopper 22: lower stopper
30: Slider 40: Holding block
41: hook portion 42: third hinge hole
43: space part 44: curved surface
45: contact groove 50: locking latch
51: fourth hinge hole 52: catch part
55: Slot 60: Link
65: hooking ring 70: spring
CP: Center post W: Wing door
P1: first hinge pin P2: second hinge pin
P3: Third hinge pin J:

Claims (5)

A wing door lock device for locking or unlocking a wing door mounted on a frame, a center post, or a side gate of a wing-bodied vehicle, the wing door opening and closing both sides of the loading box,
A lever having a first hinge hole formed at one end in the longitudinal direction thereof and a slot-shaped second hinge hole formed at an intermediate portion thereof;
A track fixed in the frame, the center post, and the side gate of the loading box to guide the elevating movement;
A slider mounted to move up and down along the track while being constrained to the track;
A third hinge hole is formed at a lower portion of the lever to be engaged with the first hinge pin to be connected to the hinge joint by the hinge joint, A holding block having a space formed between the third hinge holes to prevent contact interference due to upward and downward rotation of the lever;
A locking latch having a fourth hinge hole formed at one end thereof so as to be held or engaged with the lower edge of the wing door according to the operation of the lever;
The lever and the locking latch are connected to each other by hinges at both sides of the lever and the holding block, and one end of the lever is connected to the lever by a second hinge pin which is fitted in the second hinge hole of the lever, A link connected to the locking latch by a third hinge pin which is inserted through a fourth hinge hole of the locking latch;
The first hinge pin is inserted between the first hinge pin inside the lever and the second hinge pin so that the third hinge pin is elastically engaged with the hook portion of the holding block according to the operation of the lever, A spring that urges the lower edge of the cover to keep the hooked or tight state thereof;
Wherein the locking mechanism comprises:
A wing door lock device for locking or unlocking a wing door mounted on a frame, a center post, or a side gate of a wing-bodied vehicle, the wing door opening and closing both sides of the loading box,
A track fixed in the frame, the center post, and the side gate of the loading box to guide the elevating movement;
A slider mounted to move up and down along the track while being constrained to the track;
A hook portion integrally formed on the upper portion of the slider;
Wherein a slider is connected to a lower portion of the slider by a hinge and a slot is formed on a surface of the slider opposite to the hook so as to allow a portion of the hook to penetrate therethrough, the lever being hingedly connected to a front surface between the hinge and the slot, A locking latch which holds the lower edge of the wing door in a locked state or a close state according to an operation of the lever;
A hook having one end hingedly connected to the lever;
A spring that resiliently engages the hook with the hook according to an operation of the lever, and resiliently holds the locking latch in a state in which the locking latch is engaged with or adhered to a lower edge of the wing door;
Wherein the locking mechanism comprises:
3. The method according to claim 1 or 2,
Wherein upper and lower stoppers are provided at upper and lower ends of the track to prevent movement of the slider and prevent the slider from coming off the track.
3. The method according to claim 1 or 2,
A locking protrusion is formed on a lower edge of the wing door,
A catching portion for holding the latching jaw of the wing door is formed at the upper end of the locking latch,
An opening is formed in a front central portion of the track,
Wherein the slider is mounted on the track so that the catch portion of the locking latch maintains the lifting and retreating position according to the position where the catch portion is engaged with the latching jaw of the wing door.
The method according to claim 1,
Wherein a surface of the space portion of the holding block adjacent to the hook portion is formed of a curved surface so that the lever can lie at an angle of at least 20 degrees with respect to the slider in an unlocked state to make a linear or point contact,
Wherein a contact groove is formed on an outer surface of the hook portion so that a part of an outer circumferential surface of the third hinge pin can be stably fitted and closely contacted,
In order to prevent the locking latch from rotating in its unlocked state due to its own weight and striking a frame, a center post and a side gate constituting the loading box, the length of the lever is set to a length that causes contact interference when the locking latch rotates downward Wing door lock formed.

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