KR200495520Y1 - Wing Door Locking Apparatus of Wing Body Truck - Google Patents

Abstract

A wing door lock for a wing body truck is provided. This wing door lock includes a lever, a track fixed to a center poster or a side gate of a frame constituting the loading box of a wing body truck, a slider inserted to be movable in the up-and-down direction within the track, and fixed to the slider, but rotates up and down of the lever A holding block that prevents contact interference due to operation, a lock latch formed at the top according to the vertical rotation operation of the lever to press the lower end of the wing door to maintain the locked state, a link connecting the lever and the lock latch, the lever and a spring providing an elastic force to maintain a state in which the lock latch presses the lower end of the wing door according to the vertical rotation operation. The lower portion of the locking latch presses the track separation preventing portion that prevents separation while inducing vertical movement of the slider.

Description

Wing Door Locking Apparatus of Wing Body Truck

The present invention relates to a wing door locking device for a wing body truck, and more particularly, to a wing door locking device for a wing body truck having an elevating wing door.

In general, the loading box of a commercial truck cannot protect the cargo from snow or rain, and the cargo may be easily spilled onto the road due to a phenomenon in which the cargo is drawn during transportation. Accordingly, in recent years, various special-purpose vehicles such as so-called tower vehicles, wing bodies or vans, which can safely and efficiently load and load various types of cargo, have become mainstream.

Most of these special-purpose cargo vehicles are installed on the chassis of commercial trucks released by automakers in a box-type or container-type format with a closed top and a door on at least one side. remodeled and manufactured.

Especially, wing body trucks among special cargo vehicles have a structure that opens and closes both sides of the loading box by rotating or lifting the wing door up and down like a wing, so loading and unloading of cargo is convenient and transportation efficiency is high. There are advantages.

1 shows an example of a wing body truck, as shown, the wing door 2 is rotated around a beam formed in the middle part of the ceiling of the loading box 1 to open and close both sides of the loading box 1, In addition, the wing door 2 can be opened or closed according to the locking and unlocking of the locking device 4 mounted on the frame or side gate 3 constituting the loading box 1 . keep

And the center post (center post) (5) for stably supporting the closed state of the side gate (3) is installed in the center of the side gate (3) constituting the loading box (1), the center post (5) The lower part of the loading box (1) is connected to the bottom of the loading box (1) by a hinge joint, and when the side gate (3) is opened, the center post (5) also rotates at an angle of about 180 degrees centering on the hinge, When the side gate 3 is closed, the center post 5 also maintains a vertically erected state by the locking action of the hook-type clamp 6 .

Meanwhile, in recent years, in order to make the cargo loading operation of the wing body truck more convenient and easy, maximize the loading capacity and efficiency, and minimize the logistics cost, the volume and space can be appropriately varied according to the cargo by adjusting the height of the loading box. Loader variable wing body trucks are in the spotlight.

For example, there is a wing body truck having a structure in which the entire height of the loading box is variable by selectively lifting and lowering the loading box ceiling portion and the wing door of the wing body truck.

However, even for a wing body truck with variable height of the loading box, when driving on the road, the height of the loading box must be adjusted to the height stipulated by the Automobile Management Act and the Road Traffic Act, that is, 4 m or less. After loading the cargo to the maximum in the state where the cargo is loaded to the maximum, if the ceiling part of the loading box and the wing door are lowered to comply with applicable laws, there are cases where the wing door does not descend to the standard height due to the girders located on the ceiling of the loading box. There is a limit that could lead to a safety accident such as the wing door opening while driving and cargo falling onto the road, as it cannot be locked with a locking device fixed at a predetermined position, so it has no choice but to operate in the unlocked state.

Registered Patent No. 10-0493872 Registered Patent No. 10-1605784

The problem to be solved by the present invention is the wing door of a wing body truck that can stably maintain the lock state even if the wing door is raised above the standard height or the original installation height by automatically adjusting the height in response to the elevation of the wing door. To provide a locking device.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a wing door lock of a wing body truck. This wing door lock is fixed to a lever having a first hinge hole and a slot-shaped second hinge hole formed at one end and a middle portion in the longitudinal direction, respectively, the center poster of the frame constituting the loading box of the wing body truck, or the side gate. A track, a slider inserted so as to be movable in the vertical direction within the track, a hook part fixed to the slider, formed on the upper part for hooking, and a first hinge formed on the lower part and connected to the first hinge hole of the lever by a hinge joint A holding block formed between the third hinge hole and the hook part into which the pin is inserted and the third hinge hole and having a space portion for preventing contact interference caused by the vertical rotation operation of the lever, formed on the upper end according to the vertical rotation operation of the lever A lock latch having a compression plate and a fourth hinge hole formed at the lower end to press the lower end of the wing door to maintain a locked state, and connect the lever and the lock latch from both sides of the lever and the holding block with hinge joints, but once A link that is connected to the lever by a second hinge pin fitted into the second hinge hole of the lever, and the other end is connected to the lock latch by a third hinge pin fitted into the fourth hinge hole of the lock latch; It is mounted between the first hinge pin and the second hinge pin so that the third hinge pin is elastically caught and coupled to the hook part of the holding block according to the vertical rotation operation of the lever, and the lock latch maintains the state in which the lower part of the wing door is pressed. It may include a spring that provides an elastic force. The lower portion of the locking latch may compress the track separation preventing portion that prevents separation while inducing vertical movement of the slider.

A lower portion of the second hinge hole of the lever may compress the track separation preventing portion.

The track may have a lower stopper at the bottom for preventing the slider from disengaging downward, and an upper stopper at the top for preventing the slider from disengaging upward.

In the space part of the holding block, the surface adjacent to the hook part is a curved surface so that when the center post or side gate on which the track is fixed is turned 180 degrees and opened when the lever is unlocked, it lies at an angle within 20 degrees with respect to the slider and makes a line or point contact. can achieve

The holding block may have a close contact groove in which a part of the outer circumferential surface of the third hinge pin is stably fitted to the outer surface of the hook part.

As described above, according to a solution to the problem of the present invention, the wing door lock device moves up and down along the track in response to the lift of the wing door, and at the same time presses the lower end of the wing door and a lock latch that compresses the track departure prevention part. By including, it is possible to stably maintain the locked state even when the wing door is raised above the reference height of the loading box or higher than the original installation height. Accordingly, in the manufacturing process of the loading box, there is no need to accurately attach it according to the position corresponding to the lower part of the wing door or the predetermined height of the loading box, and at the same time, there is no need for a separate member for locking the wing door. There can be provided a wing door lock that can have a clean and beautiful appearance of the wing door while greatly improving the ease and efficiency of the wing door.

In addition, according to the solution to the problem of the present invention, the wing door lock is moved up and down along the track in response to the lift of the wing door, and operates the lock latch to press the lower end of the wing door while pressing the track departure prevention part. By including the lever, it is possible to stably maintain the locked state even when the wing door is raised above the reference height of the loading box or higher than the original installation height at the same time. Accordingly, in the manufacturing process of the loading box, there is no need to accurately attach it according to the position corresponding to the lower part of the wing door or the predetermined height of the loading box, and at the same time, there is no need for a separate member for locking the wing door. There can be provided a wing door lock that can have a clean and beautiful appearance of the wing door while greatly improving the ease and efficiency of the wing door.

1 is a side view for explaining a wing body truck.
2 is a three-dimensional view for explaining a wing door locking device according to an embodiment of the present invention.
3 is a longitudinal cross-sectional view for explaining a wing door locking device according to an embodiment of the present invention.
4 is a longitudinal cross-sectional view for explaining a configuration of a wing door locking device according to an embodiment of the present invention.
5 is a longitudinal cross-sectional view for explaining a wing door locking device according to an embodiment of the present invention.
6 is a longitudinal cross-sectional view for explaining a state in which the wing door locking device according to an embodiment of the present invention is applied to the wing body truck.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein, and may be embodied in different forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete and the spirit of the present invention may be sufficiently conveyed to those skilled in the art, and the present invention is only defined by the scope of the claims.

Like reference numerals refer to like elements throughout. Accordingly, the same or similar reference signs may be described with reference to other drawings, even if not mentioned or described in the drawings. In addition, although reference signs are not indicated, description may be made with reference to other drawings.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, 'comprises' and/or 'comprising' refers to the presence of one or more other components, steps, operations and/or devices mentioned. or addition is not excluded. In addition, since it is according to a preferred embodiment, reference signs provided in the order of description are not necessarily limited to the order. In addition, in this specification, when a component is referred to as being on another component or device, it means that it may be provided directly on the other component or device, or a third component may be interposed therebetween. do.

When an element is referred to as 'connected to' or 'coupled to' with another element, it means that another element is directly connected or coupled to another element or in the middle. Includes all cases involving On the other hand, when one element is referred to as 'directly connected to' or 'directly coupled to' with another element, it indicates that another element is not interposed therebetween. 'and/or' includes each and every combination of one or more of the recited items.

Spatially relative terms 'below', 'beneath', 'lower', 'above', 'upper', etc. It can be used to easily describe the correlation of a device or components with other devices or components. Spatially relative terms should be understood as terms including different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device shown in the figure is turned over, a device described as 'beneath' or 'beneath' of another device may be placed 'above' of the other device. Accordingly, the exemplary term 'down' may include both the direction of the bottom and the top. The device may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

In addition, the embodiments described in this specification will be described with reference to cross-sectional and/or plan views, which are ideal illustrative views of the present invention. In the drawings, thicknesses of films and regions are exaggerated for effective description of technical content. Accordingly, the shape of the illustrative drawing may be modified due to manufacturing technology and/or tolerance. Accordingly, the embodiments of the present invention are not limited to the specific form shown, but also include changes in the form generated according to the manufacturing process. For example, the region shown at right angles may be rounded or may have a predetermined curvature. Accordingly, the regions illustrated in the drawings have schematic properties, and the shapes of the illustrated regions in the drawings are intended to illustrate a specific shape of the region of the device and not to limit the scope of the design.

Figure 2 is a three-dimensional view for explaining a wing door locking device according to an embodiment of the present invention, Figure 3 is a longitudinal sectional view for explaining a wing door locking device according to an embodiment of the present invention, Figure 4 is this It is a longitudinal sectional view for explaining a configuration of a wing door lock according to an embodiment of the present invention, and Figure 5 is a longitudinal sectional view for explaining a wing door lock according to an embodiment of the present invention.

2 to 5, the wing door lock is a frame or center post (refer to CP in FIG. 6) constituting the container-type loading box (refer to 1 in FIG. 1) of the wing body truck, and a side gate (refer to 3 in FIG. 1). ), etc. to lock or unlock the wing door (refer to W of FIG. 6) that opens and closes both sides of the loading box, a lever 110, a track 120, a slider ) 130 , a holding block 140 , a lock latch 150 , a link 160 and a spring 170 may be included.

The lever 110 functions and serves to switch the locking and unlocking state of the wing door according to the vertical rotation operation, and at one end of the longitudinal direction, the holding block 140 and the first hinge joint for connection A hinge hole 112 is formed, and the middle part is connected to the link 160 and a hinge joint, and a rotation axis, that is, a slot to enable the sliding position movement of the second hinge pin 114p. A (slot)-shaped second hinge hole 114 may be formed.

In addition, the length of the lever 110 may be formed to cause contact interference when the lock latch 150 rotates downward by its own weight in the unlocked state.

That is, the lever 110 is the locking latch 150 to prevent the locking latch 150 from hitting the frame, the center post, or the side gate constituting the loading box by freely rotating downward around the second hinge pin 114p. ) can be formed to have a length causing direct contact interference with the surface of the

As a result, there is no need to precisely secondary processing the separate contact portion for causing contact interference with the lever 110 in the locking latch 150 in a curved form according to the outer shape of the lever 110, thereby simplifying the locking latch 150. It can be molded and manufactured.

Here, the lever 110 may be formed with a plurality of finger grooves (not shown) at regular intervals to facilitate gripping during operation.

According to the vertical rotation operation of the lever 110, the spring 170 is compressed and elastically returned to its original shape, and at the same time, the lock latch 150 and the link 160 are attached to the slider 130 and the holding block 140. It can be folded or unfolded as if superimposed against each other to achieve a locked and unlocked state.

The track 120 serves as a guide function and serves as a guide for guiding the wing door lock, including the slider 130, to move up and down in a sliding motion. bolting), riveting (riveting), etc. can be fixed.

And in the front central portion of the track 120, the lever 110, the holding block 140, the locking latch 150, the link 160, etc. positioned and fixed to the front of the slider 130 are smoothly without contact interference and friction. and an opening can be formed to move up and down with ease. That is, the track 120 has a cross section of the slider 130 that is restricted by the escape prevention unit 124 and moves up and down while being confined in the space. It is formed in a bent shape, and the opening may be formed in a shape having a width slightly wider than the left and right widths of the holding block 140 .

In addition, lower and upper stoppers 122 and 126 may be formed at upper and lower ends of the track 120 to prevent movement of the slider 130 from being separated from the track 120 .

Here, the upper stopper 126 may be separately fixed to a frame, center post, side gate, or the like constituting a loading box for ease and convenience of manufacture or assembly by welding, bolting, riveting, or the like.

In addition, a bolt hole such as a counter sink may be formed in a surface opposite to the frame, center post, or side gate forming the track 120 for easy bolting.

The slider 130 slides along the track 120 while the lever 110, the holding block 140, the lock latch 150, the link 160, and the spring 170 are mounted. , while being constrained to the track 120 may be mounted so as to move up and down along the track 120 .

That is, the slider 130 is made in the form of a rectangular plate so that it can be moved up and down while being confined in the space under the restrictions of the track 120 , and its vertical length can be formed to be shorter than the vertical length of the track 120 , and also , the left and right width may be formed slightly narrower than the left and right guide width of the track 120 for smooth sliding movement.

The holding block 140 supports the lever 110 and maintains the locked state of the locking latch 150 , and is fixed to the center of the slider 130 by welding or the like. can be formed integrally with

In addition, a hook portion 142 for engaging the second hinge pin 114p may be formed on the upper portion of the holding block 140 , and connected to the first hinge hole 112 of the lever 110 by a hinge joint at the lower portion. In order to do this, a third hinge hole 144 into which the first hinge pin 112p is fitted may be formed, and between the hook part 142 and the third hinge hole 144, the lever 110 is vertically rotated. A space portion 146 for preventing contact interference may be formed.

In addition, the surface of the space portion 146 of the holding block 140 adjacent to the hook portion 142 is a line or point lying at an angle of at least 20 degrees with respect to the slider 130 when the lever 110 is unlocked. It may be made of a curved surface so as to make contact, and a contact groove 148 is formed on the outer surface of the hook part 142 so that a part of the outer peripheral surface of the third hinge pin 152p is stably fitted and in close contact. can be

The locking latch 150 has a function and role of locking or unlocking the wing door by pressing the lower end of the wing door with a compression plate, which is an end of the plate shape. It may be connected to the link 160 by a hinge joint to maintain a state in which the lower end of the door is pressed.

That is, a fourth hinge hole 152 for connecting to the third hinge pin 152p by a hinge joint may be formed at one end of the locking latch 150 .

And since a separate member for locking is not required on the surface of the lower end of the wing door, the pressing plate corresponding to the upper end of the locking latch 150 may be formed to have a simple plate shape.

That is, the slider 130 may be formed to naturally maintain the lifting and fixing positions with respect to the track 120 according to the position where the lower portion of the locking latch 150 presses the release preventing portion 124 of the track 120 . . At this time, the lower portion of the second hinge hole 114 of the lever 110 may also press the separation preventing portion 124 of the track 120 . Accordingly, the lock on the wing door by the lock latch 150 may be more stably maintained.

Here, the outer circumferential surface of the compression plate of the locking latch 150 may be covered with or attached to an elastic material such as rubber, silicone, or synthetic resin that absorbs and relieves shock while being flexibly and elastically deformed by an external force.

In addition, the locking latch 150 partially limits the relative rotation angle with the link 160 to prevent the locking latch 150 from rotating too much with respect to the link 160 and overturning during locking or unlocking. can be made with

The link 160 functions and serves to move the lock latch 150 to the locked and unlocked state and position according to the operation of the lever 110, and is a hinge joint between the lever 110 and the lock latch 150, respectively. can be connected to

That is, the link 160 has one end in the longitudinal direction on both sides of the lever 110 and the holding block 140 to the second hinge pin 114p that is fitted into the second hinge hole 114 of the lever 110 . The lock latch can be rotatably connected to the lever 110 in a certain angular range by means of a third hinge pin 152p, the other end of which is fitted through the fourth hinge hole 152 of the lock latch 150. It may be rotatably connected to 150 in a certain angular range.

Here, the link 160 may be formed in a structure separated by a pair of left and right, but is preferably formed in a single form and integrally.

The spring 170 elastically engages the third hinge pin 152p with the hook portion 142 of the holding block 140 according to the operation of the lever 110, and the lock latch 150 presses the lower end of the wing door. As a function and role of giving elasticity to maintain a state of being in a state of being raised, the lever 110 may be mounted between the first hinge pin 112p and the second hinge pin 114p inside the lever 110 .

That is, the spring 170 is positioned between the first hinge pin 112p and the second hinge pin 114p in the second hinge hole 114 according to the rotation operation of the lever 110. The position of the second hinge pin 114p It is possible to provide elasticity so that the lock latch 150 maintains and forcibly constrains the lower end of the wing door by causing a change in elasticity that compresses and returns in response to the fluctuation.

Here, the spring 170 is preferably a compression coil (coil) spring that provides a force to resist the applied load, but is not limited thereto. As long as it works, it will be okay to use anything.

6 is a longitudinal sectional view for explaining a state in which the wing door locking device according to an embodiment of the present invention is applied to a wing body truck.

Referring to Fig. 6, the main operation and principle of the wing door locking device according to an embodiment of the present invention will be described as follows.

In the wing door lock according to an embodiment of the present invention, the slider 130 has the lever 110, the holding block 140, the lock latch 150, the link 160 and the spring 170 mounted on the track ( 120), so that even if the wing door (W) rises above the reference height or higher than the original installation height, it is naturally adjusted to the corresponding height and position, and the wing door ( It can be locked by pressing the lower part of W).

For example, when the wing door W is closed to the predetermined reference height or the original installation height of the loading box, the slider 130 descends by its own weight and is positioned at the bottom of the track 120 with the lock latch 150 mounted thereon. ) can achieve a locked state while pressing the lower end of the wing door (W), and when the wing door (W) rises above the standard height of the loading box or rises higher than the original installation height and closes, the driver or operator controls the slider 130 After pushing up to the upper part of the track 120, it can be locked by pressing the lower end of the wing door W with the lock latch 150. ) can be stably maintained in a state automatically adjusted to a certain height by pressing the separation prevention part 124 of the.

Accordingly, it is possible to naturally adjust and change the height in response to the elevation of the wing door W, and it is possible to stably maintain the locked state of the wing door W in that state.

The wing door lock device according to an embodiment of the present invention includes a lock latch that presses the lower end of the wing door while pressing the lower end of the wing door while pressing the lower end of the wing door in response to the lifting of the wing door and the lower end of the wing door. By including a lever that operates the locking latch to compress and at the same time squeezes the track departure prevention part, the locked state can be stably maintained even when the wing door is raised above the reference height of the loading box or higher than the original installation height at the same time. Accordingly, in the manufacturing process of the loading box, there is no need to accurately attach it according to the position corresponding to the lower part of the wing door or the predetermined height of the loading box, and at the same time, there is no need for a separate member for locking the wing door. There can be provided a wing door lock that can have a clean and beautiful appearance of the wing door while greatly improving the ease and efficiency of the wing door.

Above, although embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

110: lever
112: first hinge hole
112p: 1st hinge pin
114: second hinge hole
114p: 2nd hinge pin
120: track
122: lower stopper
124: escape prevention unit
126: upper stopper
130: slider
140: holding block
142: hook part
144: third hinge hole
146: space part
148: tight groove
150: lock latch
152: fourth hinge hole
152p: 3rd hinge pin
160 : link
170: spring
CP: Center Post
F : bottom of loading box
W: wing door

Claims (3)

a lever having a first hinge hole and a slot-shaped second hinge hole respectively formed at one end and an intermediate portion in the longitudinal direction;
Tracks secured to the center poster or side gates of the frame forming the wing body truck load compartment;
a slider inserted to be movable in the vertical direction within the track;
A third hinge hole and the hook part fixed to the slider, a hook part formed on the upper part for hooking, and a third hinge hole formed on the lower part and into which a first hinge pin for connecting to the first hinge hole of the lever and a hinge joint is fitted. and a holding block formed between the third hinge hole and having a space portion for preventing contact interference caused by vertical rotation of the lever;
a locking latch formed at an upper end according to the vertical rotation operation of the lever and having a pressing plate for maintaining a locked state by pressing the lower end of the wing door and a fourth hinge hole formed at the lower end;
At both sides of the lever and the holding block, the lever and the lock latch are respectively connected by a hinge joint, and one end is connected to the lever by a second hinge pin fitted into the second hinge hole of the lever, and the other a link whose end is connected to the lock latch by a third hinge pin fitted into the fourth hinge hole of the lock latch;
The lock latch is mounted between the first hinge pin and the second hinge pin inside the lever, and the third hinge pin is elastically engaged with the hook part of the holding block according to the vertical rotation operation of the lever. and a spring providing an elastic force to maintain a state of pressing the lower end of the wing door,
The lower portion of the locking latch presses the track separation preventing portion for preventing separation while inducing vertical movement of the slider, and
The lower portion of the second hinge hole of the lever is a wing door lock for pressing the separation preventing portion of the track.
delete The method of claim 1,
A wing door lock having a lower stopper at a lower end of the track to prevent the slider from disengaging downward, and an upper stopper at an upper end for preventing the slider from disengaging upward.

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