JPH04215521A - Device for opening and closing ceiling cover - Google Patents

Abstract

PURPOSE:To provide a device for opening and closing a ceiling cover which covers nearly the whole rear body to prevent loads from scattering and leakage of rain or the like and is constructed to be divided and folded. CONSTITUTION:A ceiling cover for covering a ceiling part from left and right is opened and closed by a device 10. The ceiling cover is divided into a first cover 30 and second cover 29. The proximal end of a frame body 12 of the first cover is mounted on a first pivot 11 mounted pivotably on the upper part of a side wall 21 of a rear body. The proximal end of a frame body 14 of the second cover is mounted on a second pivot 13 mounted on the front end of the first cover 30 and further the first and second pivots 11, 13 are connected to a rotational drive source.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening/closing device for a cover on a loading platform of a freight vehicle (such as a truck or a dip truck) or on the ceiling of a warehouse or the like.

0002

[Prior Art] Conventionally, for example, granular materials were collected in dump trucks, etc.
When transporting powder or sand-like materials, a ceiling cover was appropriately installed to prevent the loaded material from falling off the platform.

0003

[Problems to be Solved by the Invention] However, when covering the entire loading platform with a conventional ceiling cover, it is necessary to fix the periphery to the side wall, which is extremely time consuming. Therefore, a device has been proposed in which a ceiling cover corresponding to the height of the loading platform is attached to both sides of the loading platform, and the ceiling cover is opened and closed inward. However, since the height of the loading platform is usually not half the width of the loading platform, the vehicle must be driven with the center part open, and depending on the load, there is a risk that the load may be blown away by the wind or scattered around. there were. The present invention was made in view of the above circumstances, and an object of the present invention is to provide a ceiling cover opening/closing device that can cover almost the entire cargo platform and prevent the cargo from scattering or getting wet due to rain, etc. shall be.

0004

[Means for Solving the Problems] A ceiling cover opening/closing device according to claim 1, which meets the above object, is a ceiling cover opening/closing device that covers a ceiling portion from left and right sides, and wherein each of the ceiling covers is opened and closed in a first direction. and a second cover, the base end of the frame of the first cover is attached to a first rotation shaft rotatably attached to the upper side wall of the loading platform, and the second cover is divided into a cover and a second cover. The base end of the frame is attached to a second rotating shaft attached to the tip of the first cover, and a first rotational drive source is connected to the first rotating shaft, and a first rotational drive source is connected to the first rotating shaft. The rotating shaft is provided with a second rotational drive source. The ceiling cover opening/closing device according to claim 2 is the device according to claim 1, in which the second rotation shaft is connected to the first rotation shaft via a relay vehicle rotatably attached to the first rotation shaft. It is configured to be connected to two rotational drive sources. The opening/closing device for a ceiling cover according to claim 3 is the apparatus according to claim 1, in which the output shaft of the first rotational drive source is connected to the first rotational shaft, and the output shaft of the second rotational drive source is connected to the first rotational shaft. The shaft is configured to be directly connected to the second rotation shaft. The opening/closing device for a ceiling cover according to claim 4 is an opening/closing device for a ceiling cover that covers a ceiling part from left and right, and each of the ceiling covers is divided into a first cover and a second cover, and The base end of the frame of the first cover is attached to a first rotation shaft rotatably attached to the upper side wall of the loading platform, and the base end of the frame of the second cover is attached to the first rotation shaft. It is attached to a second rotating shaft attached to the tip of the cover, and the rotational drive source is connected to the first rotating shaft via a clutch device, and the first rotating shaft is connected to the second rotating shaft. The rotary drive source is connected to the rotary drive source via a relay wheel attached to a rotating shaft. The opening/closing device for a ceiling cover according to claim 5 is an opening/closing device for a ceiling cover that covers a ceiling portion from left and right sides, wherein each of the ceiling covers is divided into a first cover and a second cover. The base end of the frame of the first cover is attached to a first rotation shaft rotatably attached to the upper side wall of the loading platform, and the base end of the frame of the second cover is attached to the first cover. A rotary drive source is attached to a second rotating shaft attached to the tip of the rotary shaft, and a rotary drive source is provided on the second rotating shaft via a relay wheel that is rotatably attached to the first rotating shaft. Furthermore, the frame of the second cover is fixed to the first cover, and a holding member is provided that releases the fixed state when the frame of the first cover is rotated inward by a predetermined angle. The ceiling cover opening/closing device according to claim 6 is the ceiling cover opening/closing device according to claim 1, 2, 3, 4, or 5, in which a first The second cover is provided with receiving metal fittings for receiving both sides of the cover and the second cover. In addition, it is preferable that the receiving metal fitting is in the form of a gutter so that it can also be used to drain water.

[0005]

[Operation] In the ceiling cover opening/closing device according to claim 1, the ceiling cover is divided into a first cover and a second cover, and the base end of the frame of the first cover is attached to the side wall of the loading platform. The first cover is attached to the first rotating shaft rotatably attached to the upper part, and the first rotating shaft is provided with a first rotation drive source, so the first cover is attached to the first rotating shaft. It can be rotated by the first rotational drive source about . The base end of the frame of the second cover is attached to a second rotation shaft attached to the tip of the first cover, and the second rotation shaft has a second rotation drive. Since a source is provided, by driving the source, the frame of the second cover can be rotated around the tip of the first cover. As a result, the second cover can be folded along the inside of the first cover, and the folded first and second covers can be rotated about the first rotation axis. Therefore, when storing it, it is possible to place it along the outside of the side wall of the loading platform, and when using it, the first and second covers can be connected and spread out to cover the cargo loaded on the loading platform. It can be placed on top of the .

In the ceiling cover opening/closing device according to claim 2, the second rotation shaft is connected to the second rotation drive source via the relay vehicle rotatably attached to the first rotation shaft. Since they are connected, the rotational drive source can be fixedly arranged.

In the ceiling cover opening/closing device according to claim 3, the first rotational drive source and the second rotational drive source are attached to the first rotational shaft and the second rotational shaft, respectively. The structure is compact and power can be transmitted reliably.

In the ceiling cover opening/closing device according to claim 4, the ceiling cover is divided into a first cover and a second cover, and the base end of the frame of the first cover is connected to the side wall of the loading platform. It is attached to a first rotating shaft that is rotatably attached to the upper part, and the first rotating shaft is attached to a rotational drive source via a clutch device. The first cover can be opened and closed by turning the rotation shaft. The second rotating shaft to which the frame of the second cover is attached is connected to the rotary drive source via the relay vehicle attached to the first rotating shaft. The second cover can be opened and closed by operating the rotational drive source. Therefore, when the first cover and the second cover are folded up, the rotary drive source is rotated to simultaneously rotate the first cover and the second cover, and when they cover the upper part of the loading platform, the clutch device is activated. When the first rotation shaft is stopped by cutting off the cover, and the second rotation shaft is rotated, the second cover will rotate further, so the second cover will be extended to the first cover, and the second cover will be extended to the ceiling. Can cover the entire area.

In the ceiling cover opening/closing device according to claim 5, the ceiling cover is divided into a first cover and a second cover, and the base end of the frame of the first cover is connected to the side wall of the loading platform. It is attached to the first rotation shaft rotatably attached to the upper part, and the base end of the frame of the second cover is attached to the second rotation shaft attached to the tip of the first cover. Therefore, the first and second covers can be bent about the first and second rotation axes. The frame of the second cover is fixed to the first cover, and a presser is provided that releases the fixed state when the frame of the first cover rotates inward by a predetermined angle. The frame of the cover and the frame of the second cover are bent and integrated,
When the rotation drive source is rotated, it rotates due to the torque applied to the rotation shaft attached to the tip of the first cover.
When the frame of the first cover rotates by a predetermined angle or more and the presser comes off, the second rotation shaft further rotates and the second
The frame of the cover can be rotated about a second rotation axis.

In the ceiling cover opening/closing device according to claim 6, since the receiving metal fittings for receiving the side ends of the first and second covers are provided at the front and rear of the loading platform, the first and second covers can be opened and closed.
When the ceiling of the loading platform is covered with the cover, both sides of the ceiling can be supported by the receiving metal fittings.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention. Here, FIG. 1 is a partially exploded view of a ceiling cover opening/closing device according to a first embodiment of the present invention, FIG. 2 is a front view showing the operating state of the ceiling cover opening/closing device, and FIG. 3 is a perspective view of the same portion. figure,
FIG. 4 is a plan view of a ceiling cover opening/closing device according to a second embodiment of the present invention, FIG. 5 is a partial front view of a ceiling cover opening/closing device according to a third embodiment of the present invention, and FIG. 6 is the same part. FIG. Note that FIGS. 1, 4, 6, and 7 show only one half of the ceiling cover, and the other half is omitted. As shown in FIGS. 1 to 3, a ceiling cover opening/closing device 10 according to a first embodiment of the present invention includes a first cover frame 12 attached to a first rotation shaft 11, and a first cover frame 12 attached to a first rotation shaft 11. A second cover frame 14 is attached via a second rotation shaft 13 rotatably attached to the tip of the first cover, and a coupling 15 is attached to the first rotation shaft 11. The motor 16 is an example of a first rotational drive source that is attached via a motor 16, and a motor 17 that rotationally drives the second rotational shaft 13.

Waterproof cloth or synthetic resin sheets 18 and 19 are provided on the first cover frame 12 and the second cover frame 14 to prevent rain as a whole. This prevents the internal load from scattering. The first rotation shaft 11 has bearings 20 on both sides and an intermediate portion, and is rotatably fixed to a side wall 21 of a freight vehicle (particularly a dump truck). It is rotatably attached to a plurality of bearings 22 provided at the tip of the frame 12 of the cover. An intermediate sprocket 23, which is an example of an relay vehicle, is provided on the first rotating shaft 11 and is rotatably provided with two sprockets arranged at a predetermined interval. Second rotation axis 13
are connected by chains 24 and 25. A motor 16 with a clutch device is attached to the first rotating shaft 11 via a coupling 15. As shown in FIG. 3, hooks 26 are provided at both ends of the frame 12 of the first cover, and the frame 12 of the second cover
4 is bent at a certain angle or more, the frame 1 of the second cover
The pipes on both sides of No. 4 are fitted into the latch fittings 26 and fixed therein.

[0013] At the front and rear of the loading platform, gutter-shaped receiving fittings 27 and 28 are provided in the shape of a mountain for receiving the first and second covers. Therefore, when using this ceiling cover opening/closing device 10, first, as shown by the two-dot chain line in FIG.
The second cover 29 is folded and stored inside the first cover 30. In this case, the second cover frame 14
is attached to the latch 26. Next, when covering with a ceiling cover, when the clutch device of the motor 17 is released and the motor 16 is rotated to rotate the first rotation shaft 11, the second rotation shaft 11 is rotated as shown in A of FIG. The first cover 30 can partially cover the ceiling while the cover 29 is attached. Next, when the motor 17 is rotated in a predetermined direction with the clutch device of the motor 16 removed, the second cover 29 rotates as shown in B in FIG. 2 to cover the whole. Note that the stop position of the first cover 30 and the stop position of the second cover 29 are
This is done using a limit switch attached to either one of 7 and 28. Note that the clutch device described above (the same applies to the following examples) may be a friction clutch, but it may also be a friction clutch.
Preferably, mechanical cracking by means of splines, etc.) is used.

Next, a description will be given of a ceiling cover opening/closing device 32 according to a second embodiment of the present invention shown in FIG. 4, which includes the same components as the ceiling cover opening/closing device 10 according to the first embodiment. The same numbers will be given to the same numbers, and detailed explanation thereof will be omitted. In this ceiling cover opening/closing device 32, a double sprocket 33, which is an example of an relay vehicle, is rotatably attached to the first rotation shaft 11, and furthermore, a double sprocket 33, which is an example of an relay vehicle, is attached to the first rotation shaft 11. Another sprocket 34 is fixed to the sprocket. One side of the double sprocket 33 is connected by a chain 37 to a sprocket 36 fixed to the output shaft of a motor 35, which is an example of a rotational drive source, and the other side of the double sprocket 33 is connected to the second rotation shaft 13. It is connected by a chain 39 to a sprocket 38 which is fixed to the sprocket 38 .

The sprocket 34 is connected to a sprocket 41 via a chain 42, which is connected to the output shaft of a motor 35 via a clutch device 40. Therefore, in the ceiling cover opening/closing device 32, the second cover 29 is brought into close contact with the inside of the first cover 30 (the state shown by the two-dot chain line in FIG. 2), and the side wall of the loading platform is
1 and cover the ceiling of the loading platform, when the motor 35 is rotated in a predetermined direction with the clutch device 40 connected, the first and second rotation shafts 11 , 13 rotate in a predetermined direction, and accordingly, the second cover 29 rotates about the first rotation axis while being in close contact with the first cover 30. And the first cover 30
If the clutch device 40 is disconnected with the clutch device 40 in contact with the receiving fittings 27 and 28, the first rotating shaft 11 will not rotate;
Since only the second rotation shaft 13 further rotates, the second cover 29 is separated from the first cover 30 and the second rotation shaft 13 is rotated.
It rotates around the center and covers the entire ceiling. When removing the ceiling cover, the cover is opened by performing the opposite operation to the above.

Next, a description will be given of a ceiling cover opening/closing device 44 according to a third embodiment of the present invention shown in FIGS. 5 and 6. A double sprocket 45 is rotatably mounted on the first rotating shaft 11 One of the double sprockets 45 is connected to a motor 46, which is an example of a rotational drive source, by a chain 47, and the other is connected to a sprocket 48 fixed to the second rotating shaft 13 by a chain 49. . As shown in FIG. 6, the first rotating shaft 11 is provided with a presser 52 that presses and holds the frame 50 of the second cover against the frame 51 of the first cover. This presser 52 includes a boss 53 that can freely rotate the first rotating shaft 11, an arm 54 that hooks the frame 50 of the second cover fixed to the boss 53, and an arm 54 that is fixed to the boss 53. 5, and a spring 56 that urges the boss 53 in the counterclockwise direction in FIG. However, the first rotation shaft 11 rotates and the first cover rotates counterclockwise in FIG. 2, and the contact plate 5
5 comes into contact with the side wall 21 of the loading platform, the rotation of the arm 54 is removed from the suppressed second cover frame 50, and only the second cover frame 50 rotates around the second rotation axis 13. It can be rotated.

Therefore, in this ceiling cover opening/closing device 44, as shown in FIG. Hold and place the second frame,
When the motor 46 is rotated in a predetermined direction, power is transmitted to the sprocket 48 via the sprocket 45.
Since the frame 50 of the cover is fixed to the frame 51 of the first cover and the rotation of the sprocket 48 is locked, the force is transmitted to the sprocket 45 on the first rotation shaft 11.
rotates like C. By this, the above-mentioned presser 5
Since the contact plate 55 of the second cover contacts the upper end of the side wall 21, the arm 54 opens and the frame body 50 of the second cover moves to the position D in FIG.
Get up as shown and block the ceiling. and,
When opening the ceiling, the motor 46 is reversed, and the first cover 58 and the second cover 57 can be opened by performing an operation opposite to that described above.

Next, a description will be given of a ceiling cover opening/closing device 60 according to a fourth embodiment of the present invention shown in FIG.
Output shafts of a first rotation drive motor 61 and a second rotation drive motor 62 are directly attached to the first and second rotation shafts 11 and 13. The outer case of the first rotary drive motor 61 is supported by a fixed support member, and the outer case of the second rotary drive motor 62 is fixed to the frame 12 of the first cover. Control devices are independently attached to the first and second rotation drive motors 61 and 62 so that they can be rotated independently, and the rotation of the frame 12 of the first cover is controlled. The opening/closing operation A shown in FIG. B
It is also possible to perform this automatically.

In each of the embodiments described above, limit switches are attached to the opening/closing ends of the first and second covers to operate and stop the motor and clutch device. It is also possible to perform this by detecting increases and decreases. Further, in the above embodiment, instead of the chain drive, it is also possible to use a shaft drive using a bevel gear or the like, which allows strong force to be transmitted. In the above embodiment, the ceiling cover is folded in two, but it can also be folded in three or more. The present invention is also applicable to opening and closing the roof of a building.

[0020]

Effects of the Invention In the ceiling cover opening/closing device according to claims 1 to 6, the cover covering the ceiling is divided into a first cover and a second cover. Since the first cover and the second cover are folded and the folded cover is automatically opened, the ceiling cover can be opened and closed. It can be carried out easily and can be stored compactly. In particular, in the ceiling cover opening/closing device according to claims 3 and 4, since there is one rotational power source, the device is simplified and does not require complicated control.

[0021]

[Brief explanation of the drawing]

FIG. 1 is a partially exploded view of a ceiling cover opening/closing device according to a first embodiment of the present invention.

FIG. 2 is a front view showing the operating state of the opening/closing device of the ceiling cover.

FIG. 3 is a perspective view of the same part.

FIG. 4 is a plan view of a ceiling cover opening/closing device according to a second embodiment of the present invention.

FIG. 5 is a partial front view of a ceiling cover opening/closing device according to a third embodiment of the present invention.

FIG. 6 is a side view of the same part.

FIG. 7 is a plan view of a ceiling cover opening/closing device according to a fourth embodiment of the present invention.

[Explanation of symbols]

10 Ceiling cover opening/closing device 11 First rotation axis 12 First cover frame 13 Second rotation axis 14 Second cover frame 15 Coupling 16, 17 Motor 18, 19 sheets 20 Bearing 21 Side wall 22 Bearing 23 Sprocket (relay car) 24, 25 Chain 26 Latch 27, 28 Receiving metal fittings 29 Second cover 30 First cover 32 Ceiling cover opening/closing device 33, 34 sprocket 35 Motor 36 Sprocket 37 Chain 38 Sprocket 39 Chain 40 Clutch device 41 Sprocket 42 Chain 44 Ceiling cover opening/closing device 45 Sprocket 46 Motor 47 Chain 48 Sprocket 49 Chain 50 Second cover frame 51 First cover frame 52 Holder 53 Boss 54 Arm 55 Contact plate 56 Spring 57 Second cover 58 First cover 60 Ceiling cover opening/closing device 61 First rotational drive source 62 Second rotational drive source

Claims (6)

[Claims] 1. An opening/closing device for a ceiling cover that covers a ceiling part from left and right, wherein each of the ceiling covers is divided into a first cover and a second cover, and the base end of the frame of the first cover is divided into a first cover and a second cover. is attached to a first rotating shaft rotatably attached to the upper side wall of the loading platform, and the base end of the frame of the second cover is attached to a second rotating shaft attached to the tip of the first cover. The ceiling cover is attached to a rotating shaft of the ceiling cover, and the first rotating shaft is provided with a first rotational drive source, and the second rotating shaft is provided with a second rotational driving source. Switchgear. 2. The ceiling according to claim 1, wherein the second rotation shaft is connected to the second rotation drive source via a relay vehicle rotatably attached to the first rotation shaft. Cover opening/closing device. 3. The output shaft of the first rotary drive source is directly connected to the first rotation shaft, and the output shaft of the second rotation drive source is directly connected to the second rotation shaft. ceiling cover opening/closing device. 4. An opening/closing device for a ceiling cover that covers a ceiling part from left and right, wherein each of the ceiling covers is divided into a first cover and a second cover, and the base end of the frame of the first cover is divided into a first cover and a second cover. is attached to a first rotating shaft rotatably attached to the upper side wall of the loading platform, and the base end of the frame of the second cover is attached to a second rotating shaft attached to the tip of the first cover. The rotary drive source is connected to the first rotating shaft via a clutch device, and the relay vehicle attached to the first rotating shaft is connected to the second rotating shaft. An opening/closing device for a ceiling cover, characterized in that the opening/closing device is connected to the rotational drive source through a cable. 5. An opening/closing device for a ceiling cover that covers a ceiling part from the left and right, wherein each of the ceiling covers is divided into a first cover and a second cover, and the base of the frame of the first cover is opened and closed. The end portion is attached to a first rotating shaft rotatably attached to the upper side wall of the loading platform, and the base end of the frame of the second cover is attached to a first pivot shaft attached to the tip of the first cover. A rotary drive source is provided on the second rotation shaft via a relay wheel that is rotatably attached to the first rotation shaft, and furthermore, An opening/closing device for a ceiling cover, characterized in that a frame is fixed to a first cover, and a holding member is provided that releases the fixed state when the frame of the first cover rotates inward by a predetermined angle. [Claim 6] A first cover and a second cover are provided at the front and rear of the loading platform.
The opening/closing device for a ceiling cover according to claim 1, 2, 3, 4, or 5, further comprising receiving metal fittings for receiving both sides of the cover.