KR101844569B1 - Channel of conveyor type of automatic cover for loading box - Google Patents

Abstract

The present invention relates to a conveyor type channel of an automatic cover for a loading box, in which a multi-stage cover is provided on a rear frame of a cover frame, which is installed on a loading box of a freight vehicle and provided with a front frame and the rear frame, each cover of the multi-stage cover is overlapped to be gathered or drawn to be deployed by a moving unit installed over the front frame and the rear frame, and both sides of the rear frame are arranged as a channel so that a part of the moving unit is inserted into the channel and connected to each cover to guide each cover. The channel includes: a left side plate; a right side plate spaced apart from the left side plate and disposed in parallel with the left side plate; and a plurality of rolling units connecting one end of the left plate and one end of the right plate at a predetermined interval. When the construction waste or soil is put into the loading box by gathering or deploying the covers of the multi-stage cover, the construction waste or soil is naturally dropped through the roller of the conveyor type channel, which is a roller conveyor, so that the inconvenience of separately cleaning construction waste or soil contained in the channel may be solved.

Description

{Channel of conveyor type automatic cover for loading box}

[0001] The present invention relates to a conveyor-type chanel of a ladder automatic lid, and more particularly, to a conveyor-type lantern for a ladder automatic lid, in which each lid of a multi-stage lid installed on a rear frame of a lid frame on the loading box is moved by moving means, To a conveyor-type channel of a loading box automatic lid, each of which is constituted by a roller connected to a frame and a roller conveyor including a plurality of rollers as rolling means.

A freight vehicle such as a dump truck is a form in which the top is opened without a lid of a loading box. In the case of a transportation operation, the load placed on the loading box falls or the traffic safety is threatened. Pollution problems are also occurring.

In order to compensate for this, the cover of the cloth or vinyl was temporarily installed on the upper opening of the loading port during the transportation of the cargo. However, it was impossible to prevent the falling of the falling object and scattering of the dust to both sides of the cloth or vinyl.

In addition, the Ministry of Environment, in order to collect and transport construction wastes through the Law Concerning the Promotion of Recycling of Construction Waste from July 1, 2016, And that it should use a vehicle covered by the material specified by the Minister.

Accordingly, there has been developed a lid that covers the upper portion of a conventional freight vehicle, and among these lids, an automatic lid is used which automatically unfolds and folds the lid. The lid is covered with a lid on the frame, By connecting the channel to the frame, the lid is also moved and folded as the frame moves along the channel.

However, when a dump truck is used as a freight vehicle, when the construction waste or the gravel are loaded on the dump truck, some of the construction waste or the gravel may accumulate inside the channel having the 형상 shape, There is an inconvenience to manually remove it.

SUMMARY OF THE INVENTION The present invention has been made in order to solve all of the above problems, and it is an object of the present invention to provide a lid of a multistage lid installed on a rear frame of a lid frame, A channel disposed on both sides of the rear frame for guiding the cover while being connected to the moving means comprises a left plate and a right plate and a plurality of rolling means connecting the left plate and the right plate to each other, A conveyor-type channel of a loading box automatic lid comprising a roller as a roller using a roller or the like.

In order to achieve the above-mentioned object, a conveyor-type channel of a ladder automatic lid of the present invention is characterized in that a multi-stage lid is provided on the rear frame of a lid frame installed as a front frame and a rear frame on a load- The lid of each of the multi-stage lid is stacked or pulled out from each lid by the moving means provided over the front frame and the rear frame, and both sides of the rear frame are arranged in a channel so that a part of the moving means is inserted So that the channel is guided by the left cover, A right side plate spaced apart from the left side plate and disposed in parallel with the left side plate; And a plurality of rolling means connecting one end of the left plate and one end of the right plate at a predetermined interval.

Preferably, each of the channels is a roller conveyor in which the rolling means is composed of rollers.

It is preferable that the roller comprises a fixed shaft connected between a left side plate and a right side plate of the channel and a rotating pipe inserted into the fixed shaft.

And a support bracket attached to the lower portion of the channel at predetermined intervals along the longitudinal direction and fixed to the loading box, respectively.

형상으로 각각 형성되어, 상기 이동수단과 함께 각 덮개의 양쪽 하단부가 상기 각 단면

형상 찬넬에 삽입되어 전진 및 후진 이동하도록 하는 것이 바람직하다.The channel on both sides of the rear frame has a cross section with a rail guide along the longitudinal direction at the outer upper part

And both lower ends of each lid, together with the moving means,

It is preferable to insert it into the shape channel so as to move forward and backward.

According to the conveyor type channel of the automatic lid of the present invention, when the lids of the multi-stage lid of the automatic lid are stacked or unfolded, and the construction waste or soil is contained in the ladle, the space between the rollers of the conveyor- It is possible to eliminate the inconvenience of separately cleaning the construction waste or the soil to be contained in the channel.

In addition, since the channel is formed as a roller conveyor, each lid of the multi-stage lid moves smoothly by riding on the roller of the roller conveyor, so that the lid can be moved forward and backward more easily.

1 is a perspective view of a lid automatic lid of a freight vehicle in which a conveyor type channel of the present invention is installed;
Fig. 2 is a front perspective view of the automatic luggage compartment lid of a freight vehicle in which the conveyor-type channel of the present invention is installed.
FIG. 3 is a side perspective view of the loading lid automatic lid of a freight vehicle equipped with the conveyor type channel of the present invention.
FIG. 4 is a front perspective view and an enlarged perspective view of a lid automatic lid of a freight vehicle equipped with a conveyor-type channel according to the present invention;
5 is a partially enlarged perspective view of the portion A 'of FIG. 4 showing the connecting portion of the front chain of the lid automatic lid of the freight vehicle and the conveyor-
FIG. 6 is a partially enlarged perspective view of the 'B' portion of FIG. 2 showing the rear chain connection of the lid automatic lid of the freight vehicle and the conveyor-
7 is a perspective view of a lid automatic lid of a freight vehicle showing only a conveyor type channel of the present invention
8 is a cross-sectional view of a support portion of the lid automatic lid of a freight vehicle and an enlarged cross-sectional view of a main part showing the conveyor-type channel of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a conveyor-type channel of a lid automatic lid according to the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

1 is a perspective view of a lid automatic lid of a freight vehicle in which a conveyor type channel of the present invention is installed.

1, the loading lid automatic lid of the freight car equipped with the conveyor type channel of the present invention is constructed such that the lid frame 2 is first installed on the loading box 1a of the freight car 1, A plurality of lids 30 can be stacked or unfolded on a plurality of lids 3 and a plurality of lids 30 can be stacked on the lids 3, And means 6 for moving the rearmost lid 31 among the lids 30 of the multi-stage lid 3 and the like. The multi-stage lid 3 moves the lids 30 toward the front of the freight vehicle 1 in which the driver's seat is located when the lids 30 are stacked together. When the lids 30 are unfolded, The lid 30 is moved toward the rear of the freight vehicle 1 having the lid 1a.

With the automatic lid, it is possible to prevent falling of a load, particularly a load such as construction waste, loaded on a load box of a freight vehicle, or to prevent scattering of dust or dust generated in the construction waste.

Next, a description will be given of the detailed construction of the lid automatic lid of the freight vehicle described above before describing the conveyor-type channel of the present invention.

FIG. 2 is a perspective front view of a loading lid automatic lid of a freight vehicle equipped with a conveyor-type channel of the present invention, and FIG. 3 is a side perspective view of a ladder automatic lid of a freight car equipped with the conveyor- FIG. 4 is a front perspective view and an enlarged perspective view of a main part automatic lid of a freight vehicle in which a conveyor-type channel of the present invention is installed.

2 to 4, the loading lid automatic lid of the freight car equipped with the conveyor-type channel of the present invention includes the lid frame 2, the multi-stage lid 3 composed of the respective lid 30, The superimposing means 4, the expanding means 5, the moving means 6, and the control device 7, as shown in Fig.

찬넬로 롤러 컨베이어(9)를 구성하여 본 발명의 컨베이어형 찬넬이 된다. The lid frame 2 includes a rectangular frame 21 disposed horizontally in alignment with the upper surface of the loading box of the freight vehicle and a rectangular frame 22 connected to the front of the rear frame 21 As will be described later, a rail guide 9a in the form of a wing is attached to the outer upper end of the rear frame 21 at both sides of the rear frame 21, and a plurality of rollers 9b are connected to the lower end of the rail guide 9a. shape

The roller conveyor 9 is constituted by a channel so that it becomes a conveyor-type channel of the present invention.

The multi-stage lid 3 is formed in the shape of a slightly different size so that a plurality of lids 30 in a pentagonal arcuate shape can be stacked one after the other, Respectively. Therefore, the width and the height of the rear end cover 31 of the multi-stage lid 3 gradually increase toward the frontmost lid 32 via the lid 30, respectively. Each lid 30 including the rearmost lid 31 and the forefront lid 32 of the multi-stage lid 3 is not limited to a pentagonal arcuate shape but may be formed as a round arcuate or square arcuate shape as necessary It can be changed and configured.

The lids 30 including the rearmost lid 31 and the forefront lid 32 are integrally formed of a polycarbonate (PC) material. When the lid 30 is integrally molded, On the upper surface and both side surfaces, a corresponding insertion guide groove 8 is formed to extend in the longitudinal direction. Since each of the insertion guide grooves 8 protrudes from the upper surface of each lid 30, when the lid 30 is stacked, for example, when the rearmost lid 31 is inserted into the adjacent lid 30, The insertion guide groove 8 of the rearmost lid 31 is inserted into the insertion guide groove 8 of the adjacent lid 30. The insertion of each of the insertion guide grooves 8 continuously occurs in the adjacent lid 30 when the lid 30 is stacked, so that the lid 30 is stably overlapped without detaching. A plurality of insertion guide grooves 8 may be formed at predetermined intervals along the width direction on the upper surface and both side surfaces of the respective lids 30 in order to superpose the lids 3 more securely. Each lid 30 including the rearmost lid 31 and the foremost lid 32 is made of polycarbonate (PC), and in particular, each lid 30 including the rearmost lid 31 is continuously moved It is preferable that the protective cover 17 made of a metal is inserted and protected at the front and rear sides of the lower ends of both sides.

The superimposing means 4 is constituted by attaching a support 40 having a predetermined height across the widthwise direction from the rear of the upper surface of each lid 30 including the rearmost lid 31 and the forefront lid 32, The support base 41 of the rearmost chamber cover 31 and the moving means 6 are connected to each other. A reinforcing support 43 of the same shape as that of the supporting frame 42 is attached to the front upper surface of the front cover 32 together with the upper supporting frame 42. The supporting frame 42 is reinforced The supporting posts 43 are connected to each other by a plurality of connecting rods 44 having a predetermined distance. The frontmost lid 32 is fixed to the front of the rear frame 21 of the lid frame 2 but each lid 30 which sequentially overlaps inward from the forefront lid 32 is moved to the moving means 6 And are spaced apart at regular intervals on both sides of the rear frame 21 together with the rearmost end cover 31 connected thereto.

The deploying means 5 is disposed between the lower surfaces of the supports 40, 41 and 42 attached to the respective lids 30 including the rearmost lid 31 and the forefront lid 32 of the multi- And the wire 5a is connected to the supports 40, 41 and 42 through the same U-bolts 5b installed on the supports 40, 41 and 42, Respectively. The wires 5a are connected to each other in the middle of the support rods 40, 41 and 42 by a single line. However, if necessary, the wires 5a may be stably connected to the lid 30 including the rearmost lid 31 of the multi- It may be connected in two rows on both sides of the support rods 40, 41 and 42 for deployment. In the drawing, the wire 5a is connected to the lower surfaces of the support rods 40, 41 and 42, but the upper surfaces of the support rods 40, 41, It is possible.

A separate rear cover 14 is mounted on the rear surface of the support base 41 attached to the rearmost lid 31 of the multi-stage lid 3 to prevent the falling body from falling down or scattering dust. The rear cover 14 is connected to both sides of a T-shaped cover support 14a installed at a half height from the rear of the support 41 of the rearmost lid 31 via a hinge 15, ) To the top of the rearmost cover (31). Since the rear cover 14 is connected through the hinge 15, the rear cover 14 may be folded inwardly of the rearmost cover 31. [

FIG. 5 is an enlarged perspective view of the 'A' portion of FIG. 4 showing the front chain connection of the luggage compartment automatic lid of the freight vehicle and the conveyor-type channel of the present invention, FIG. 6 is an enlarged perspective view of the rear chain connection of the luggage compartment automatic lid of the freight vehicle, FIG. 2B is an enlarged perspective view of the 'B' portion of FIG. 2 showing a conveyor-type channel.

The moving means 6 includes a decelerating motor 61 mounted on the front frame 22 of the lid frame 2, a rotating shaft 62 connected to the motor shaft of the decelerating motor 61, And a cover forward / rearward means 63 connected to the cover forward / rearward means 63. The cover forward / rearward means 63 uses a sprocket wheel 63a and a chain 63b. The decelerating motor 61 is a motor including a decelerating function. The decelerating motor 61 is fixed in a state where the motor shaft is positioned at the upper middle of the front frame 61. The rotating shaft 62, which is rotated by the combination of the helical gears, And is installed across the front frame 61 in the horizontal direction with the bearing 10 mounted thereon. As shown in FIG. 5, sprocket wheels 63a are mounted on both ends of the pivot shaft 62. The sprocket wheels 63a are arranged on both sides of the rear frame 21 As shown in Fig. 6, and one at each rear side of the rear frame 21 through the wheel bracket 12, as shown in Fig. The chains 63b are connected to each other through respective sprocket wheels 63a to constitute a chain connecting portion and the chains 63b on both sides are connected to the supports of the rearmost lid 31 through chain brackets 11 41, respectively.

Therefore, when the rotating shaft 62 rotates by the driving of the decelerating motor 61, the chain 63b is orbitalized while the sprocket wheel 63a is rotated as the chain of the bicycle, and the end of the multi- Since the lid 31 is connected to the chain 63b, the rearmost lid 31 moves forward and backward in accordance with the orbital motion of the chain 63b. Although the sprocket wheel 63a and the chain 63b are used as the cover forward / backward means 6 in the drawing, a pulley and a rotating belt (not shown) may be used as the cover forward / backward means 6 if necessary. When such a pulley and a rotating belt are used, the pulley is provided on the rotating shaft 62 or the like like the sprocket wheel 63a, and the rotating belt is connected to the pulley in place of the chain 63b.

The control device 7 controls the driving and stopping of the forward or reverse rotation of the decelerating motor 61 and the movement distance of each lid 30 including the rearmost lid 31 of the multi- But it is usually installed on the front of the driver's seat so that it can be operated from the driver's seat of the freight vehicle. The control device 7 can be operated without overlapping or unfolding the lids 30 including the rearmost lid 31 of the multi-stage lid 3 by driving the deceleration motor 61 by the control device 7, You can do this manually. In this case, the moving means 6 fixes a handle or the like to the support 41 of the rearmost lid 31 to move the rearmost lid 31 forward or backward, The lid 30 may be stacked or unfolded. The lid 30 of the multi-stage lid 3 can be rotated by the chain 63b without causing the chain 63b to move through the deceleration motor, for example, by manually rotating the pivot shaft 62, It can be stacked or unfolded.

형상 찬넬로 각각 형성하고, 상기 각 단면

형상 찬넬은 바깥쪽 상부에 길이방향을 따라 수평으로 날개형태의 레일가이드(9a)가 각각 달려 있고, 하단부 안쪽에 구름수단으로서 다수개의 롤러(9b)가 연결된 롤러 컨베이어로(9)로 구성한다. 이와 같이 후면 프레임(21)의 양측을 형성하는 각 단면

형상 찬넬로 된 롤러 컨베이어(9)의 홈 안에는 체인(63b)에 연결된 지지대(41)의 양쪽 하단부가 최후방 덮개(31)의 양쪽 하단부와 함께 각각 삽입되어 있다. 상기 체인(63b)을 회전벨트로 사용하는 경우 상기 각 단면

형상 찬넬로 된 롤러 컨베이어(9)의 홈 안에는 회전벨트가 각각 삽입되어 있을 것이다. 이러한 각 단면

형상 찬넬로 된 롤러 컨베이어(9)의 레일가이드(9a)가 오른쪽 상부에 형성되어 있지만, 반대편의 후면 프레임(21) 측면에서는 상기 레일가이드(9a)가 당연히 왼쪽 상부에 형성되어 있을 것이다. 이러한 상기 체인(63b)이나 회전벨트는 롤러 컨베이어(9) 내에서 롤러(9a)를 사이에 두고 아래위로 지나가게 되며, 아래로 지나가는 체인(63b)은 상기 롤러 컨베이어(9)의 안쪽 벽에 부착된 보호관(18) 내로 삽입되어 구동 중 처지는 것을 방지하게 된다. As shown in FIGS. 5 and 6, the conveyor-type channel of the present invention in the automatic lid as described above is characterized in that both sides of the rear frame 21 of the lid frame 2 have a cross section

And each of the cross sections

The shape channel is constituted by a roller conveyor (9) having a wing-shaped rail guide (9a) horizontally along the longitudinal direction on the outer upper side and a plurality of rollers (9b) as rolling means inside the lower end. As described above, since each of the cross sections forming both sides of the rear frame 21

In the grooves of the roller conveyor 9 made of the shape channel, both lower ends of the support rods 41 connected to the chain 63b are inserted together with both lower ends of the rearmost lid 31. When the chain 63b is used as a rotating belt,

Rotating belts will be respectively inserted into the grooves of the roller conveyor 9 made of the shape channel. These cross sections

The rail guide 9a of the roller conveyor 9 made of a shape channel is formed on the upper right side. However, on the side of the rear frame 21 on the opposite side, the rail guide 9a will naturally be formed on the upper left side. The chain 63b or the rotating belt is moved downward through the roller 9a in the roller conveyor 9 and the chain 63b passing downward is attached to the inner wall of the roller conveyor 9 So that it is prevented from sagging during driving.

FIG. 7 is a perspective view of a lid automatic lid of a freight vehicle showing only a conveyor type channel of the present invention.

7, the conveyor-type channel according to the present invention comprises a long left side plate 90 and a right side plate 90 disposed on both sides of the rear frame 21 of the lid frame 2 of the automatic lid, And a plurality of rollers 9b as rolling means sandwiching respective lower ends of the left and right side plates 90 and 91 at one end thereof at predetermined intervals along the longitudinal direction, And a conveyor 9. As described above, the support rods 40 provided on the front frame 22 of the lid frame 2 are connected to the roller conveyor 9, respectively.

8 is a cross-sectional view of a support portion of a laden automatic lid of a freight vehicle and an enlarged cross-sectional view of a main portion showing the conveyor-type channel of the present invention.

형상 찬넬로 된 롤러 컨베이어(9)의 날개인 레일가이드(9a)에 각각 삽입함으로써, 상기 각 레일가이드(9a)는 고정락장치(13)가 각각 이동할 때 최후방 덮개(31)를 포함한 각 덮개(30)와 함께 잡아주면서 안내하는 역할을 하도록 한다. 또한 상기 롤러 컨베이어(9)의 각 롤러(9b)는 구체적으로 고정축(9b1)와 파이프(9b2)로 구성될 수 있다. 이러한 상기 고정축(9b1)은 롤러 컨베이어(9)를 구성하는 단면

형상 찬넬의 좌측판(90)과 우측판(91) 사이에 연결되어 고정되고, 상기 파이프(9b2)는 상기 고정축(9b1)에 삽입되어 자유롭게 회전한다.As shown in Fig. 8, when the lids 30 including the rearmost lid 31 of the multi-stage lid 3 are stacked or unfolded and unfolded, each lid 30 including the rearmost lid 31, (40) (41) mounted on each lid (30) including the rearmost lid (31) so as to stably move forward or backward in a fixed state without detaching from the both sides of the rear frame (21) And the fixed lock device 13 is connected between both sides of the rear frame 21. In other words, fixing grooves 13a whose inwardly directed grooves are formed at the ends of the fixing lock device 13 protruding from the outer lower side surfaces of the supporting rods 40 (41) 13a are formed on both sides of the rear frame 21,

Each of the rail guides 9a is inserted into each of the lids 9a including the rearmost lid 31 when the stationary lock device 13 is moved respectively by inserting the respective rail guides 9a into the rail guides 9a which are wings of the roller conveyor 9 made of shape channels. (30). Each of the rollers 9b of the roller conveyor 9 may be constituted by a fixed shaft 9b1 and a pipe 9b2. The fixed shaft 9b1 is connected to the cross section of the roller conveyor 9

Is connected and fixed between the left side plate 90 and the right side plate 91 of the shape channel and the pipe 9b2 is inserted into the fixed shaft 9b1 and freely rotates.

At this time, the protective cover 17 mounted on the lower end of each lid 30 of the multi-stage lid 3 is placed on the roller 9b of the roller conveyor 9 to ride the roller 9b, 9b2 so that the lids 30 can be smoothly and smoothly moved while being protected.

형상 찬넬의 하부에는 길이방향을 따라 일정간격을 두고 판 형상의 지지브래킷(19)이 각각 부착되어 적재함(1a)의 양측에 각각 고정된다. 이러한 각 지지브래킷(19)은 상기 롤러 컨베이어(9)를 받쳐 줌으로써 처지는 것을 방지하는 역할을 하게 된다. 또한 상기 각 지지브래킷(19)은 다른 도면에서도 그 설치 형태와 위치를 확인할 수 있다.On the other hand, as shown in Fig. 8, the cross section of the roller conveyor 9

Like support brackets 19 are attached to the lower portion of the shape channel at regular intervals along the longitudinal direction and fixed to both sides of the loading box 1a, respectively. Each of the support brackets 19 serves to prevent sagging by supporting the roller conveyor 9. In addition, the mounting bracket 19 can be identified in its other mounting configurations and positions.

Hereinafter, an operating state of the lid automatic lid of the freight vehicle provided with the conveyor-type channel of the present invention constructed as described above will be described with reference to FIGS. 1 to 8. FIG.

The lids 30 including the rearmost lid 31 of the multi-stage lid 3 are piled up in the forefront lid 32 and loaded on the loading lane 1a such as construction waste, The lids 30 are unfolded and expanded to cover the top of the loading box 1a of the freight car 1. [ This is done through the moving means (6) and the deployment means (5). That is, when the decelerating motor 61 is driven by the control device 7 to rotate in the normal direction, for example, the chain 63b is traversed in the counterclockwise direction on both sides via the rotating shaft 62 and the sprocket wheel 63a, And the rearmost lid 31 connected to the chain 63b moves backward. In this case, since the lids 30 including the rearmost lid 31 and the forefront lid 32 are connected to each other by the wire 5a serving as the deploying means 5, the lids 30, 30 are drawn out from the adjacent lids in turn, and are unfolded. At this time, since the wires (5a) are connected between the support posts (40), (41) and (42) of each lid (30) including the rearmost lid (31) and the forefront lid (32), the rearmost lid Each lid 30 including the rearmost lid 31 and the forefront lid 32 by the length of the wire 5a between the supports 40, 41 and 42 of each lid 30 including the lid 32, Will be restricted from moving further.

Next, when it is no longer necessary to cover the loading box 1a of the freight car 1 with the multi-stage lid 3, each lid 30 including the rearmost lid 31 of the multi-stage lid 3 is again inserted into the forefront lid 32, They are superimposed. This is done through the means of movement 6 and the means of superimposition 4. That is, when the decelerating motor 61 is driven by the control device 7 to rotate in the reverse direction, for example, both chains 63b orbits in the clockwise direction through the rotating shaft 62 and the sprocket wheel 63a, And the rearmost lid 31 connected to the first lid 63b moves forward. The end cover 31 is inserted under the adjacent lid 30 and overlaps the supporting lid 41 of the rearmost lid 31 which is the laminating means 4 to the support of the adjacent lid 30 40 and each support 40 pushes the support of each adjacent lid in turn so that each lid 30 continues to be inserted beneath the adjacent lid and finally to the bottom of the fixed final lid 32 All the covers 30 including the rearmost chamber cover 31 are gathered and overlapped.

At this time, when the respective lids 30 including the rearmost lid 31 are stacked together as described above, the insertion guide grooves 8 formed in the lids 30 including the rearmost lid 31 are formed in the lid Since the lids 30 including the rearmost lid 31 are inserted while being inserted into the insertion guide groove 8 of the lid 32, the overlapping operation of the lids 30 including the rearmost lid 31 can be performed stably . When the lids 30 including the rearmost lid 31 of the multi-stage lid 3 are all stacked together, the fixing pins 16 are inserted into the insertion holes of the support rods 40, When the lids 30 including the lid 31 are fastened, the respective lids 30 including the rearmost lid 31 are prevented from escaping from the adjacent lid.

When construction waste or soil is contained in the loading box 1a of the freight car 1 by the operation of the automatic lid as described above, the construction waste or the soil is released to the roller conveyor 9 on both sides of the loading box 1a And the roller 9b, so that it is not necessary to separately clean it.

Although the present invention has been described with reference to the drawings, it is to be understood that the invention is not limited to the disclosed embodiments and drawings, It is needless to say that various modifications can be made by those skilled in the art within the scope of the present invention.

1: Cargo vehicle 1a: Cargo bay
2: cover frame 21: rear frame
22: front frame 3: multi-stage cover
30: lid 30a:
30b, 30c: divided lid 31: rearmost cover
32: front cover 4: overlapping means
40: support 41: support of the tailgate
42: support of frontmost lid 43: reinforcement support
44: connecting rod 5: deployment means
5a: wire 5b: U-shaped bolt
6: moving means 61: deceleration motor
62: Pivot shaft 63: Lid forward / backward means
63a: Sprocket wheel 63b: Chain
7: Control device 8: Insertion guide groove
9: Roller conveyor 9a: Rail guide
9b: roller 9b1: fixed shaft
9b2: Pipe 10: Bearing
11: Chain bracket 12: Wheel bracket
13: Fixation lock device 13a: Fixing groove
14: rear cover 14a: cover support
15: Hinge 17: Protective cover
18: Protection tube 19: Support bracket

Claims (5)

A channel installed in an automatic lid installed in a loading box of a freight vehicle to prevent falling or scattering of a load placed on the loading box,
Wherein a multi-stage lid is provided on the rear frame of the lid frame, which is installed as a front frame and a rear frame, above the loading box of the freight vehicle, and each lid of the multi- The rear frame is disposed in a channel so that a part of the moving means is inserted and guided by the respective covers so as to be guided,
In the channel,
Left side plate;
A right side plate spaced apart from the left side plate and disposed in parallel with the left side plate; And
And a plurality of rolling means connecting one end of the left plate and one end of the right plate at predetermined intervals,
Wherein each of the channels is a roller conveyor in which the rolling means is a roller,
Wherein the roller comprises a fixed shaft connected between a left side plate and a right side plate of the channel and a rotating pipe inserted into the fixed shaft. delete delete The method according to claim 1,
Further comprising a support bracket attached to the lower portion of the channel at predetermined intervals along the longitudinal direction and fixed to the loading box, respectively. The method according to claim 1,
The channel on both sides of the rear frame has a cross section with a rail guide along the longitudinal direction at the outer upper part

And both lower ends of each lid, together with the moving means,

Characterized in that it is inserted into the shape channel and moves forward and backward.

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