WO2019216459A1 - Device for opening/closing loading compartment cover of freight vehicle - Google Patents

Abstract

The present invention relates to a device for opening/closing a loading compartment cover of a freight vehicle, the device comprising: rail plates formed by inwardly bending the upper ends of both-side side-plates of a loading compartment of a freight vehicle; one or more sliders formed in a block shape and sliding while coming in close contact with the upper surface of each rail plate; cover ribs having a curved beam shape, and having both ends respectively coupled to slider covers facing each other so as to encompass the upper part of the loading compartment; a pair of first fixing pulleys provided at the front of both side-plates of the loading compartment; a pair of second fixing pulleys provided at the rear of both side-plates of the loading compartment; a cable which are wound so as to link the first fixing pulleys and the second fixing pulleys to each other, pass through each slider, and are coupled to the rearmost slider; and an opening/closing drive means provided at a front plate of the loading compartment so as to forwardly or reversely rotate the first fixing pulleys, thereby causing the slider coupled to the cable to reciprocatively slide, wherein locking members extending downward are respectively provided at the outer lower part of each slider, and locking bars by which each locking member can be caught are formed at a predetermined interval on both-side side-plates of the loading compartment.

Description

Cargo Box Cover Opening and Closing Device

The present invention relates to a loading box cover opening and closing device of a freight vehicle, and more particularly, to a loading box cover opening and closing device of a cargo vehicle that can easily open and close the cover covering the loading box of the cargo vehicle.

In general, the loading box for freight vehicles is a space for loading and transporting various building materials, waste, waste concrete, household waste, timber, waste wood, and various kinds of mixtures. It is mandatory by law to cover and load the cargo compartment.

However, in the case of arm roll vehicles that mainly carry construction aggregates, dump trucks, or cleaning vehicles that carry garbage, the driver's cover is often complicated, so the aggregates and rubbish loaded on the load drop off the road. The following vehicles were provided the cause of traffic accidents, and there was a problem of polluting the environment.

In order to solve the above problems, the automatic opening and closing device of the storage box cover of various structures has been invented so as to automatically cover the storage box cover, but it is complicated in construction and not easy to manufacture, and the installation cost is high. Because of the frequent breakdowns, they are not practical and require high maintenance costs and require electrical and mechanical power.

1 is a perspective view showing the structure of a loading box cover opening and closing apparatus of a conventional freight vehicle.

According to the bar, the loading box cover opening and closing device of the conventional freight vehicle is formed with a guide plate (1a) bent inwardly on both edges of the loading box 1, the upper surface of the guide plate in a state raised on the guide plate upper surface A plurality of sliders 2 sliding forward and backward along the surface, a plurality of ribs 3 supporting the cover while connecting the sliders facing each other, and a pair of first fixings fixed to both rear sides of the loading box; A pulley (4), a pair of second fixed pulleys (5) provided on both front sides of the loading box and interlocked with the first fixed pulley and the cable (c), and a drive shaft coupled between the second fixed pulley ( 6), a drive pulley (7) interlocked with any one of the second fixed pulleys, a manual handle (8) capable of rotating the drive pulley, and a motor (9) for rotating the drive shaft. Including configuration The.

In this case, the sliders are caught while the cable pulled by the fixed pulley and the driven pulley pass, and the slider at the rear is fixed with the cable.

Accordingly, when the manual handle or the motor is driven, the drive shaft rotates. As a result, when the cable is moved horizontally, the rearmost slider moves together with the other sliders so that the front panel is compacted so that the cover is folded.

Such a conventional loading box cover opening and closing device is slid in a state where the slider is simply raised on the upper surface of the guide plate, so there is a risk that the slider is separated from the guide plate by vibration or wind power while driving the vehicle.

There is even a risk that the ribs will overturn due to the slider's deviation.

This raises the cover covering the cargo, which causes safety problems as the cargo inside is scattered to the outside.

In addition, as the sliders collide with the guide plate, there is a problem in that noise is greatly generated when the vehicle is driven.

Accordingly, the present invention is to solve the above-described problems, an object of the present invention is to provide a slider for inducing the movement of the cover ribs forming the skeleton of the cover of the cargo vehicle that can be stably fixed without departing from the rail plate when driving the vehicle It is to provide a loading box cover opening and closing device.

And it is to provide a loading box opening and closing device of the cargo vehicle further provided with an auxiliary cover rib in the rear so that the cover completely covers the loading box.

The cargo box cover opening and closing device of the cargo vehicle according to the present invention for achieving the above object, the rail plate is bent inwardly on both side plates of the cargo vehicle loading box; At least one slider having a block shape and sliding in close contact with an upper surface of each rail plate; A cover rib having a curved beam shape and having both ends coupled to the slide cover facing each other and surrounding an upper portion of the loading box; A pair of first fixing pulleys installed in front of both side plates of the loading box; A pair of second fixing pulleys provided at the rear of both side plates of the loading box; A cable wound around the first fixed pulley and the second fixed pulley and penetrating the respective sliders and coupled to the rearmost slider; It is installed on the front plate of the storage box and the opening and closing drive means for reciprocally sliding the slider coupled to the cable by forward or reverse rotation of the first fixing pulley; comprising, but extending to the lower side of the outer bottom of the slider Locking members are provided, respectively, and the side bars of the stacking box may be formed with a locking bar that can be locked to each locking member at regular intervals.

Here, the locking member is formed with a locking groove opened to the rear side of the loading box, the inlet side of the locking groove is rounded to facilitate the entry of the locking bar.

And each of the locking member is formed to become longer or shorter in height from the front to the rear.

In addition, the opening and closing drive means, the drive shaft coupled between the pair of the first fixed pulley, the driven pulley axially coupled to the drive shaft and the drive pulley interlocked with the driven pulley and the handle for manually rotating the drive pulley It may be made or comprises a drive shaft coupled between the pair of second fixed pulley and the drive motor is installed in the middle of the drive shaft to drive the drive shaft rotationally.

On the other hand, the outer side of the two rear sliders, to form a '┏┓' shape so as to cover the back of the stacking box and the secondary cover rib to which the cover is attached can be rotatably coupled.

In this case, a tension spring is interposed between the cover rib coupled to the rearmost slider and the auxiliary cover rib, and both ends of the auxiliary cover rib are formed with a locking bar extending at a predetermined angle, and the hooks are formed on both sides of the loading box. Protruding stoppers may be formed so that the bars can each be caught.

According to the present invention having the above configuration, when the cover is opened and closed, the slider slides stably in a state seated on the rail plate, and the locking bar is locked to the locking member, so that each slider is fixed, so that the cover is separated from the opening or closing of the vehicle. There is no risk of overturning the cover ribs.

Therefore, the cargo inside the cargo box is not scattered to the outside and is safe.

In addition, the slider can remain in close contact with the rail plate so that it does not collide and no noise is generated.

In addition, there is an auxiliary cover rib on the rear of the loading box has the advantage that can completely cover the cargo.

1 is a perspective view showing the structure of a loading box cover opening and closing device of a conventional freight vehicle

Figure 2 is a perspective view showing the overall structure of the loading box cover opening and closing device of a freight vehicle according to an embodiment of the present invention

3 is a sectional view of an essential part of the present invention shown in FIG.

Figure 4 is a front view showing the locking means of the present invention

5 is an operating state diagram of the present invention

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

For reference, the description with reference to the drawings is for easier understanding of the present invention, and the scope of the present invention is not limited thereto. In the following description of the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Figure 2 is a perspective view showing the overall structure of the loading box cover opening and closing device of the freight vehicle according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the main part of the present invention shown in FIG.

As shown in the present invention, the rail plate 10, the cover rib 20, the slider 30, the first fixing pulley 40, the second fixing pulley 50, the cable 60, opening and closing driving means ( 70) and the locking means 80 may be configured.

First, the rail plate 10 is formed in the loading box 100 of the freight vehicle, the upper end portions of both side plates 130 of the loading box 100 is bent inwardly. In general, the stacking box 100 is composed of both side plates 130, the front plate 110 and the rear plate 120, the lower plate so as to load the cargo, and forms an open top.

Accordingly, the rail plate 10 may be folded into an upper end of the side plate 130 of the loading box 100 inward, and thus may have a cross-section of a shape such as an 'a' angle.

The rail plate 10 may be continuously formed from the front side to the rear side of the side plate 130 because the rail plate 10 guides sliding while supporting the slider 30.

In addition, the width of the rail plate 10 may be formed to be the same or smaller than the width of the slider 30 to be described later.

Next, the cover rib 20 will be described.

The cover rib 20 is attached to the cover (c) covering the loading box 100 at regular intervals to form a skeleton of the cover (c), it may be approximately curved beam or bow shape.

In addition, the cover rib 20 may be manufactured by bending a solid beam having a circular or rectangular cross section or by bending a hollow tube.

Opposing sliders 30 are coupled to both ends of the cover ribs 21 so that the cover ribs 21 surround the upper portion of the loading box.

The cover c may be such that both edges are fixed to the respective sliders 30.

Next, the slider 30 is formed in a block shape like a substantially rectangular parallelepiped and is coupled to both ends of the cover rib 20. That is, two cover ribs 20 are coupled to each other.

Each slider 30 is mounted on the rail plate 10.

In addition, as the cover c is coupled to the slider 30, the cover extends and covers the side of the slider so that the slider is not exposed to the outside.

For reference, the material of the slider 30 may be a synthetic resin material having a smooth surface. Therefore, it can be slid smoothly along the surface of the rail plate 10.

Next, the first fixed pulley 40 and the second fixed pulley 50 will be described.

The first fixing pulley 40 is fixed to the front of the loading box 100, is disposed on the outer surface of the front plate 110 of the loading box 100. As shown in the figure, the rail plate 10 is located in front of the rail plate 10 and is rotatably installed. In this case, the first fixing pulley 40 is installed vertically side by side so as to be wound by the second fixing pulley 50 and the cable 60.

At this time, the second fixing pulley 50 is fixed to the rear of the loading box 100, a pair of each one is provided on each side plate. It is fixed to the rear outer surface of the side plate 130 of the loading box (100). As illustrated in detail, the rail plate 10 is vertically positioned at the rear lower side of the rail plate 10, and is coupled to the side plate 130 of the loading box 100 so as to be rotatable.

Next, the cable 60 is wound around the first fixed pulley 40 and the second fixed pulley 50.

As shown, the first fixing pulley 40 and the second fixing pulley 50 on one side of the loading box 100 is wound in pairs to be interlocked by one cable 60, the other side The first fixed pulley 40 and the second fixed pulley 50 are paired and wound so as to be interlocked by the other cable 60.

Here, the cable 60 is wound around the first fixed pulley 40 and the second fixed pulley 50, respectively, and penetrates the slider 30 at the same time. As shown in FIG. 3, a cable 60 positioned upward passes through the plurality of sliders 30 seated along the rail plate 10.

To this end, the through holes 31 are formed in the sliders 30. In addition, one more through hole 31 may be formed.

At this time, the inner diameter of the through hole 31 is larger than the outer diameter of the cable 60 so that the slider 30 is not caught by the cable 60.

However, the two rearmost sliders 30 of the sliders 30 are fixed to the cable 60, respectively. Thus, when the cable 60 moves, it is actuated to move together along the cable 60.

Next, the front plate 110 of the loading box 100 is provided with an opening and closing drive means 70 for rotating the first fixing pulley 40.

First, when manually rotating the first fixing pulley 40, the opening and closing drive means 70 may be composed of a drive shaft 71, driven pulley 72, drive pulley 73, handle 74 have.

Specifically, the drive shaft 71 is interposed between the pair of first fixing pulleys 40. That is, the first fixed pulley 40 is axially coupled to both ends of the drive shaft 71 so that the first fixed pulley 40 rotates as the drive shaft 71 rotates.

The drive shaft 71 is further provided with a driven pulley 72. That is, it may be installed adjacent to any one of the first fixing pulley 40.

In addition, a driving pulley 73 may be installed below the driven pulley 72. The drive pulley 73 is connected to be linked with the driven pulley 72 by a separate cable (60a).

A handle is coupled to the driven pulley 72 so that the driven pulley 72 rotates by rotating the handle 74, and subsequently, when the driving pulley 73 rotates, the entire drive shaft 71 rotates.

Another embodiment of the opening and closing driving means 70 is when the first fixing pulley 40 is automatically rotated. In this case, the opening and closing drive means 70 may be composed of a drive shaft 71, a drive motor 75.

That is, the drive motor 75 is installed on the front plate 110 of the loading box 100, the drive motor 75 is linked with the drive shaft 71 by a power transmission means such as a gear. Therefore, the driving motor 75 is operated to rotate the driving shaft 71.

In addition, as shown in the alternative, it may have a structure in which both the manual and automatic opening and closing drive means are installed.

Here, in the case of the handle 74, the forward rotation or reverse rotation is possible, the drive motor 75 is also controlled to enable forward rotation and reverse rotation.

Next, the locking means 80 will be described with reference to FIG. 4. 4 is a front view showing the locking means of the present invention.

The locking means 80 is a cover (c) is opened to completely cover the cargo, that is, to lock the slider 30 so as not to leave when running in a state in which the slider 30 is spaced apart, the locking member 81 ) And a locking bar 82.

The locking member 81 is coupled to the lower portion of each slider 30 and extends downward. The locking member 81 may be directly coupled to the slider 30 or may be connected by the connection member 32 as shown.

The outer side of the slider 30 may protrude longer than the width of the rail plate 10 so that the locking member 81 is coupled to the slider 30.

A locking groove 83 is formed below the locking member 81.

The locking groove 83 is intended to be caught while the locking bar 82 is retracted and is open toward the rear side of the loading box 100.

The width of the locking groove 83 may be the same as or slightly larger than the outer diameter of the locking bar 82.

Preferably, the inlet side of the locking groove 83 may be rounded and rounded to induce the locking bar 82 to be easily engaged.

On the other hand, the locking bar 82 protrudes vertically from the side plate of the loading box 100, the protruding length of the locking bar 82 can protrude through the locking groove 83 of the locking member 81. The length is enough.

Preferably, the length of the locking member 81 is longest and shorter at the front of the loading box 100, so that the length of the locking member 81 at the rear is shortest. More specifically, the position of the locking groove 83 of the locking member 81 at the rearmost is higher and lower from the ground so that the position of the locking groove 83 of the locking member 81 at the foremost is provided at the lowest. Can be.

Correspondingly, the locking bars 82 inserted into and engaged in the respective locking grooves 83 are also disposed at the same height.

In this way, the locking member 81 and the locking bar 82 do not collide with each other when the cover is opened and closed.

In the present invention, the rear cover of the loading box 100 may be further provided with an auxiliary cover rib 21 to completely cover the back of the loading box 100.

Generally, even if the cover is covered by the cover ribs 20 by the cover ribs 20, the rear surface of the stacker 100 is partially exposed. Therefore, a structure is needed to completely cover it.

The auxiliary cover ribs 21 have a substantially '┏┓' shape and are attached to the cover and rotatably coupled to the outside of both sliders 30 positioned at the rearmost ends.

Specifically, both ends of the auxiliary cover ribs 21 may be hinged to the outer surface of the rearmost slider 30.

A tension spring 23 is interposed between the auxiliary cover ribs 21 and the rear cover ribs 20. Due to the tension spring 23, the auxiliary cover ribs 21 maintain the overlapped state, not the unfolded state from the cover ribs 20.

At this time, when the cover rib 20 is fully deployed and unfolded, the engaging bars 22 are formed at both ends of the auxiliary cover rib 21 so that the auxiliary cover rib 21 is fully unfolded.

The catching bar 22 may extend to the side plate 130 of the loading box 100, but may form a predetermined angle with the auxiliary cover rib 21.

In addition, a stopper 24 protruding from the side plate 130 of the loading box 100 to allow the catching bar 22 to be caught, allows the catching bar 22 to be held and supported.

Therefore, when the cover ribs 20 are unfolded in the folded state, the catching bar 22 is caught by the stopper 24, which causes the catching bar 22 and the auxiliary cover rib 21 to be in a vertical state. While gradually positioned horizontally to completely cover the back of the stacking box (100).

Hereinafter, an operation process of the present invention will be described with reference to FIG. 5. Figure 4 is an operating state diagram of the present invention, (a) shows the cover ribs are all folded cover is folded state, (b) shows the cover ribs covered with the cover to expand the stack.

When the operator manually operates the handle 74 or operates the driving motor 75 to rotate the driving shaft 71, the pair of first fixing pulleys 40 coupled to both ends of the driving shaft 71 are rotated. ) Will rotate simultaneously.

When the first fixing pulley 40 is rotated, the second fixing pulleys 50 are also rotated in the same direction, which causes the cables 60 to move, respectively. As shown in (a), the slider 30 is moved. When the penetrating cable 60 moves forward of the stack 100, all sliders 30 are stationary but the rearmost slider 30c is fixed with the cable and therefore moves forward together.

When the cable 60 continues to move, the rearmost slider 30c moves while pushing the other sliders 30a and 30b which are stopped, so that the cover ribs 20 are overlapped while all the sliders 30 are concentrated in the forward direction. Fold.

At this time, as the sliders 30 move, the locking member 81 hanging on the locking bar 82 is separated.

Thus, the cover c attached to the cover rib 20 is folded and the loading box 100 is opened.

In this case, the auxiliary cover ribs 21 are vertically stacked while being overlapped with the rear cover ribs 20 by the tension of the tension springs 23.

On the contrary, when the cargo is loaded and the cover is closed as shown in (b), the handle 74 or the driving motor 75 are rotated in reverse so that the first fixing pulley 40 rotates in reverse.

In this case, the cable 60 is moved in reverse, and the rear slider 30c fixed to the cable 60 is also moved backwards. In this case, the cover ribs 20 are opened at regular intervals and the cover is covered. The cover c attached to it is unfolded.

At this time, when the rearmost slider 30c is moved, the rearmost locking bar 82c is coupled to the rearward slider 30c when the rearward locking bar 82c is reached without colliding with the locking bars 82. It is caught while being inserted into the locking groove 83 of the locking member 81c.

At the same time, the other locking bars 82a and 82b are caught while being inserted into the locking grooves 83 of the corresponding locking members 81a and 81b, respectively. In this way, since each locking member 81 is firmly fixed to the locking bar 82, the sliders 30 do not move or vibrate from the rail plate 10 during driving.

On the other hand, as the rear cover rib 20 moves to the rear, the locking bar 22 is caught by the stopper 24, so that it can no longer move and rotates, and is gradually horizontally placed, and the auxiliary cover rib ( 21 is unfolded while rotating downward, so that the cover to which the auxiliary cover rib 21 is attached can completely cover the rear surface of the loading box.

Although the exemplary embodiments of the present invention have been described above with reference to the drawings, those skilled in the art will be able to perform various applications and modifications within the scope of the present invention based on the above contents. Therefore, the scope of the present invention should not be limited to the embodiments described, but should be defined by the claims below and equivalents thereof.

Claims (7)

Rail plates having upper ends of both side plates of the cargo stacker; At least one slider having a block shape and sliding in close contact with an upper surface of each rail plate; A cover rib having a curved beam shape and having both ends coupled to the slider facing each other to surround an upper portion of the loading box; A pair of first fixing pulleys installed in front of both side plates of the loading box; A pair of second fixing pulleys provided at the rear of both side plates of the loading box; A cable wound around the first fixed pulley and the second fixed pulley and penetrating the respective sliders and coupled to the rearmost slider; It is provided on the front plate of the loading box, the opening and closing drive means for reciprocating sliding the slider coupled to the cable by rotating the first fixed pulley forward or reverse; Locking means for opening and closing the cargo compartment cover is provided with a locking member extending downward on the outer lower portion of each of the slider, and locking bars formed on both sides of the stacker to lock the locking members at regular intervals. Device. The method of claim 1, The locking member is formed with a locking groove opened to the rear side of the loading box, The inlet side of the locking groove is a cargo box cover opening and closing device of the cargo vehicle, characterized in that the rounding process for easy entry of the locking bar. The method of claim 2, The lock member opening and closing device of the cargo vehicle, characterized in that the height of each locking member is gradually shorter from the front to the rear. The method of claim 1, The opening and closing drive means, A drive shaft coupled between the pair of first fixed pulleys, a driven pulley axially coupled to the drive shaft, a drive pulley interlocked with the driven pulley, and a handle for manually rotating the drive pulley. Cargo box cover opening and closing device. The method of claim 1, The opening and closing drive means, And a drive shaft coupled between the pair of second fixed pulleys, and a drive motor installed in the middle of the drive shaft to drive the drive shaft to rotate. The method according to any one of claims 1 to 5, On the outside of each slider located at the rear end, A cargo box cover opening and closing device of a cargo vehicle, characterized in that the cover cover is attached to form a '┏┓' shape so as to cover the rear of the loading box is rotatably coupled. The method of claim 6, A tension spring is interposed between the cover rib and the auxiliary cover rib coupled to the rearmost slider. Both ends of the auxiliary cover ribs are formed with engaging bars extending at a predetermined angle, Both sides of the loading box is a loading box cover opening and closing device of the cargo vehicle, characterized in that the stopper is formed so as to protrude each of the engaging bars.

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