WO2011087230A2

WO2011087230A2 - Automatic cover device of truck loading box

Info

Publication number: WO2011087230A2
Application number: PCT/KR2010/009556
Authority: WO
Inventors: 장두대
Original assignee: 주식회사 대광티엔알
Priority date: 2010-01-15
Filing date: 2010-12-30
Publication date: 2011-07-21
Also published as: WO2011087230A3; KR100971687B1

Abstract

An automatic cover device of a truck loading box according to the present invention is to completely prevent the deviation or falling of loads stacked in a loading box during the transportation of the loads and stably keep a cover even when the truck is not in operation. The automatic cover device of a truck loading box includes: a cover integrally formed for covering the entire top surface of the loading box and having both side ends in close contact with upper corners at both sides of the loading box; links respectively coupled with a plurality of hinges provided to outer surfaces at both sides of the cover and a plurality of hinges provided at the lower side of the loading box; and hydraulic cylinders hinge-coupled on the links and provided to the lower side of the loading box, so that the hydraulic cylinders close the cover while rotating the links in the to and fro direction of the loading box with respect to the lower side hinges and operate in the opposite direction from each other between the links which are separately mounted to the side surface sections of the loading box.

Description

Automatic cover device for truck loading box

The present invention relates to a cover for a truck loading box, in particular, it is possible to safe transport by preventing the load loaded on the truck to be separated or dropped during transportation, and to maintain the cover in a stable structure when not used for transportation It relates to an automatic cover device for a truck loading box.

In general, the opening and closing device of a truck carrying construction materials (gravel, sand, soil, etc.), garbage, and the like is used as shown in FIGS. A pair of covers, one side of which is rotatably supported at both sides of the upper part of the loading compartment opening, and a driving device connected to the cover to impart rotational force to rotate the cover.

However, if the cover device having the above structure is used, when a large number of bulky loads are loaded as shown in FIG. 8 (a), the loads may fall out of the loading box and fall because the cover is not completely covered. There is. In addition, since the cover is usually made of cloth coated on the steel frame, the supporting force for pressing the load is weak.If the vibration or impact is applied due to road conditions or external impacts while driving, the load may damage the cover, hit the cover, and move away from the outside. There is also concern.

When the load falls on the road by the above action, the road damage or fine dust is generated, and thus adversely affects the environment, and particularly severe discomfort to passers-by and drivers passing around.

On the other hand, if a small volume of soil or sand, such as in Figure 8 (b) is loaded, the load is easier to load than the bulky load, so there is a high risk of leaving the outside of the load with a cover cloth once covered the cover I use it. In this case, when loading and unloading the load, the cover cloth should be spread on the upper side of the loading box, and each edge of the cover cloth should be tied to the loading box with a strap to fix it. There is a problem that falls and brings a significant fatigue and unnecessary stress to the worker.

In addition, when the cover device is not used for transportation, the cover is folded out of the storage box as shown in FIG. 9, so that the cover and the storage box collide with each other when driving in the cover folded state, thereby not only damaging the cover and the storage box. Since the sound is also generated as a large noise, there is a problem that is inconvenient for operation and use.

The present invention has been invented to solve the problems of the prior art as described above, it is possible to completely prevent the load carried in the loading box to fall out or fall out of the truck during transportation, without unnecessary work such as applying a cover cloth It is also an object of the present invention to provide an automatic cover device for a truck loading box so that the cover can be stably maintained even when the cargo is not operated for transportation.

In order to realize the above object, the present invention is an automatic cover device for opening and closing the opening of the upper side of the truck loading box, integrally formed in a size that covers the entire upper surface of the loading box, both ends of the upper side of the loading compartment A cover that is in close contact with each other, a plurality of hinges provided on both outer surfaces of the cover and a plurality of hinges provided on the lower side of the loading box, and a hinge coupled to the link and provided on a lower side of the loading box to provide the lower hinge. Provides an automatic cover device for a truck loading box comprising a hydraulic cylinder which is installed to operate in the opposite direction between the links spaced apart in the side of the loading box while rotating the link in the front and rear directions of the loading box around the center. do.

The automatic cover device for a truck loading box according to the present invention can cover the upper surface of the truck loading box completely without any gaps so as to prevent the departure or fall of the load to the outside regardless of the volume of the load during transportation of the load. Can be.

In addition, since the cover can be maintained in a stable structure when not used for transportation, there is less risk of being damaged or damaged after the cover is installed.

In addition, since the cover is opened by the hydraulic cylinder and the link, the operability is accurate, excellent, and easy to use, and the cover is rotated to the front side of the truck, and thus it may be usefully used on narrow roads.

Figure 1 is a side view that shows the process of opening and fixing the cover of the automatic cover device for truck loading box according to the present invention,

2 is a cross-sectional view showing the shape of the cover and the close contact of the loading box and the cover,

3 is a cross-sectional view showing a close contact portion of the loading box and the cover,

4 to 7 is a side view of another embodiment of the automatic cover for truck loading box according to the present invention,

8 and 9 is a state diagram used in the automatic cover device for a truck loading box of the prior invention.

2: loading box 3: corner

10 cover 11 inner part

13: home 15: support

20: link 21,22: hinge

25: extension part 27: stopper

30: hydraulic cylinder 31: hinge

33: hinge 40: shock absorbing member

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view showing the process of fixing the open in the cover state of the automatic cover for truck loading box according to the present invention, Figure 2 is a cross-sectional view showing the shape of the cover and the close contact portion of the loading box and the cover, 3 is a cross-sectional view showing the close contact portion of the loading box and the lid.

1 to 3, the automatic cover device for a truck loading box according to the present invention includes a cover 10 covering an upper side of an open portion of a loading box 2 of a truck, a side of the cover 10, and a loading box 2. It consists of a link 20 connected to the lower side of the hydraulic cylinder 30 for opening and closing the cover 10 by rotating the link (20).

The lid 10 is configured to open and close the upper opening of the loading compartment 2 of the truck. 1 and 2, the cover 10 is integrally formed in such a size as to cover the entire upper surface of the stacking box 2, and in particular, both ends of the stack 10 may have both upper edges of the stacking box 2 ( It is configured to be in close contact with 3).

The cover 10 is preferably formed of a metal material in consideration of firmness and operability, and may be further provided with a waterproof cloth or a tent so that the load is not separated.

When loading loads such as construction materials (gravel, sand, soil, etc.), rubbish, and the like in the loading box 2, they are loaded higher than the upper surfaces of both sides of the loading box 2 in order to transport as much as possible. In view of this point, as shown in FIG. 2, the center of the inner surface portion 11 of the cover 10 is formed to be positioned higher than the upper surfaces of both sides of the stacking box 2, and when viewed in the longitudinal direction, the whole or the cross section thereof is convex. It is advantageous to do so. The convex shape can be produced in a variety of semi-circular, rectangular, trapezoidal shape.

Although the cover 10 is integrally formed, although not shown, two or more covers may be separately configured as necessary. In this case, it is possible to configure the interlocking structure in which the hinges are connected to each other facing each other, it is also possible to be configured to open and close each of the plurality of covers (10).

On the other hand, when closing (closing) the upper opening of the loading box 2 with the lid 10, metal materials with considerable weight collide with each other, causing a large noise, and possibly damaging the metal material. The inner surface of both ends of the cover 10 in close contact with both upper edge portions 3 of the stacking box 2 is naturally shaped as "a", as shown in Figures 2 and 3, wherein both sides of the shock-absorbing member ( 40) can be attached to prevent damage caused by noise or impact.

At this time, the shock-absorbing member 40 is made of one or more of all that can be used for shock-absorbing, including synthetic resin materials such as rubber, and is attached and formed as shown in Figure 3 (b), in Figure 3 (c) As described above, the groove 13 may be formed from the front side to the rear side or a part thereof in the longitudinal direction of the cover 10, and the shock absorbing member 40 may be inserted into the groove 13. In addition, the impact mitigating member 40 is combined to serve as a seal.

In addition, a locking means is provided between the cover 10 and the storage box 2 for a firm fixing in the closed state of the cover 10. As shown in FIG. 4, the locking means 16 is installed on the side surface of the cover 10, and the locking mechanism 17 on the side of the loading box 2 may be rotated and fixed. It is configured by installation. The locking means may be installed at one or more places from the front to the rear in the longitudinal direction of the cover 10, and may be provided with a separate locking device.

The locking means has been described by way of example, and in addition, any structure having the locking means is possible.

A plurality of hinges 21 are installed at both end sides of the cover 10, and a link 20 is connected to each hinge 21, and the link 20 is a hinge installed at a lower side of the stacking box 2. Is connected to (22).

Referring to the drawings, the link 20 is rotated around the lower hinge 22 in the structure thereof.

A hinge 31 is installed on each link 20 to rotate the link 20, and the hydraulic cylinder 30 spaced apart from the link 20 at a lower side of the stacking box 2 at the hinge 31. Connect).

The hydraulic cylinder 30 is installed on the hinge 33 provided on the lower side of the stacking box 2 as shown in FIGS. 1 and 4 to 7, and the hydraulic cylinder 30 is not shown but is loaded (2). It is operated by the hydraulic drive system installed on the lower side of the

As shown in (a) to (c) of FIG. 1, the lid 10 is opened while the link 20 rotates about the lower hinge 22 toward the front of the truck by the operation of the hydraulic cylinder 30, and vice versa. In operation, the lid 10 is closed.

When the cover 10 is fully open, as shown in (c) of FIG. 1, the cover 10 is rotated and fixed to the front of the truck, and the portion that is not supported by the cover 10 is not supported by the upper surface of the loading box 2. The more the cover 10 will remain open in an unstable state. In order to prevent this, the base portion 15 is formed on the front side of the cover 10 so as to support the lower portion of the cover 10.

The opening and closing operation of the cover 10 is performed by the rotation of the link 20. At this time, the stopper 27 is attached and installed near the upper hinge 21 of the link 20. The stopper 27 is installed so that the upper end side of the link 20 that is operated when the cover 10 is opened and closed is no longer rotated. The stopper 27 is installed to be in close contact with the outer side of the maximum rotation radius of the link 20. Should be done.

In this case, the stopper 27 may be installed on the lower hinge 22 of the loading box 2, and may be installed on both the upper and

lower hinges

21 and 22.

On the other hand, the hydraulic cylinder 30 can be rotated open and close the cover 10 even if installed in any one of the plurality of links 20 as shown in FIG. In FIG. 4, when the hydraulic cylinder 30 installed only connected to the left link 20 operates to rotate the link 20 connected thereto, the cover 10 is rotated clockwise by the rotational force to the right link 20. Since the rotational force is transmitted, the operation is the same as installing on all of the links 20. At this time, it is obvious that the hydraulic cylinder 30 should be installed on both sides.

As shown in FIG. 5, the hydraulic cylinders 30a-1 and 30a-2 are installed between two links 20, and a rod of one hydraulic cylinder 30a-1 is one of two links. Rods of the other hydraulic cylinder 30a-2 are connected to one of the two links, so that the two hydraulic cylinders 30a-1 and 30a-2 are opposite to each other. Can be operated in a direction to rotate the two links 20.

At this time, the extension part 25 is formed in the lower side of each lower side hinge 22, and the hydraulic cylinders 30a-1 and 30a-2 are hingedly connected to each extension part 25, respectively. When configured as described above, as an example of the operation, the left hydraulic cylinder 30a-1 maintains a pulled state and the right hydraulic cylinder 30a-2 maintains a pushed state as shown in FIG. have. At this time, both links 20 maintain a closed state of the cover 10 inclined diagonally on the left.

In this state, in order to open the cover 10 using both links 20, the rod of the left hydraulic cylinder 30a-1 is pushed and the rod of the right hydraulic cylinder 30a-2 is pulled. 20 is rotated in a clockwise direction around the lower hinge 22, the cover 10 is opened. Using this structure has an effect that can be used while usefully adjusting the hydraulic pressure used in the hydraulic cylinder.

In addition, the hydraulic cylinder 30 is connected to the extension portion 25 which extends in the longitudinally lower side of the lower hinge 22 of each link 20 as shown in FIGS. 6 and 7 to push and pull in the horizontal direction. It may be configured to rotate (20).

In this case, as shown in FIG. 6, the hydraulic cylinder 30b may be installed for each link 20, and as shown in FIG. 7, the hydraulic cylinder 30c may be interlocked between the extension portions 25 of both side links 20. May be At this time, the extension portion 25 of the link 20 forms a long hole-shaped flow hole 26 so that when the

hydraulic cylinders

30b and 30c are operated forward and backward, the link 20 naturally rotates without being caught by the rotation radius. Be sure to

Since the hydraulic cylinder 30 is configured to induce rotation of the link 20, the hydraulic cylinder 30 is not limited to the hydraulic cylinder 30, and any configuration capable of rotating the link 20 in addition to the other cylinders is possible.

The automatic opening and closing device for a truck loading box made as described above can completely cover the upper surface of the truck loading box 2 with a cover 10 without gaps, thereby preventing departure or falling of the load during transportation of the load. Even if you do not use (10), you can leave it as it is so safe management is possible.

In addition, it is excellent in operability, easy to use, and fully open to the front side of the truck when opened, which is advantageous for loading loads, and is particularly useful for narrow roads.

Claims

In the automatic cover device for opening and closing the upper opening of the truck loading box,

A cover 10 formed integrally with the entire size of the upper surface of the loading box 2 and having both end portions in close contact with both upper edge portions 3 of the loading box 2;

Links 20 coupled to the plurality of hinges 21 provided on both outer surfaces of the cover 10 and the plurality of hinges 22 provided on the lower side of the loading box 2;

The hinge 31 is coupled to the link 20, and is provided at a lower side of the loading box 2 and rotates in the front and rear directions of the loading box 2 about the lower hinge 22. While opening and closing the cover 10, the automatic cover device for a truck loading box comprising a hydraulic cylinder (30) which is installed to be operated in opposite directions between the links (20) spaced apart from the side of the loading box (2).
The method of claim 1,

The hydraulic cylinder 30 is connected to the extension portion 25 formed extending to the lower side of the lower hinge 22 of each link 20, and the link 20 is rotated by pushing and pulling the extension portion 25 to cover the cover ( 10) Automatic cover device for truck loading compartment, characterized in that the opening and closing.
The method of claim 1,

The hydraulic cylinder 30 is interlockingly installed between the extension portions 25 extending to the lower side of the lower hinge 22 of the plurality of links 20, and the link 20 is rotated by pushing and pulling the extension portion 25. Automatic cover device for a truck loading box, characterized in that 10 to be opened and closed.
The method according to any one of claims 1 to 3,

An inner cover part (11) center side of the cover (10) is located higher than the upper surface of both sides of the stacking box (2) is characterized in that the automatic cover device for truck loading compartment, characterized in that the convex shape as a whole.
The method according to any one of claims 1 to 3,

Automatic cover device for truck loading compartment, characterized in that the shock-absorbing member 40 is attached to the inner surface of both ends of the cover 10 in contact with the upper edge of both sides of the loading compartment (2).
The method according to any one of claims 1 to 3,

The stopper (27) on the outer surface of the maximum rotation radius of the link (20), the automatic cover device for truck loading compartment, characterized in that the link (20) is configured to be tightly fixed in the maximum rotation state.
The method according to any one of claims 1 to 3,

Automatic cover device for a truck loading compartment, characterized in that provided with at least one locking means between the cover (10) and the loading box (2).