JPH0529986Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a step gate that is attached to the loading platform of a freight vehicle.

Conventional technology Conventionally, trucks have a structure in which gates are erected and fixed on the left and right side edges of the loading platform, and a gate is attached to the rear edge of the loading platform so that it can be raised and lowered via a hinge, and the rear of the loading platform as well as the left and right sides. The car body had a structure in which the gate was attached via a hinge so that it could rise and fall freely instead of a gate.

When loading and unloading cargo, in the former case, the rear gate is folded down to the outside, and in the latter case, the rear and side gates are folded down to the outside. To facilitate this, the former car body has a fixed or electric step plate at the rear of the lower part of the chassis that supports the cargo platform, and the latter car body has a fixed or electric step plate on the left and right sides in addition to the fixed or electric step plate at the rear of the chassis. There were also boards and U-shaped metal fittings on the sides for footrests.

Problems that the invention aims to solve: However, in both the former and the latter, fixed step plates protrude outward from the rear of the car body, which can get in the way, and they are attached to the chassis by welding or bolting. However, when used for a long period of time, there are drawbacks such as rattling or loosening due to the load of people and cargo and vibrations caused by running, and the risk of danger during work due to these. However, this method required a drive mechanism, space for installing it, and installation work, which resulted in disadvantages such as increased production costs.

Furthermore, even if a fixed step plate or footrest is installed on the side of the vehicle as in the latter case, there will be more items attached to the lower side of the vehicle, which will get in the way and spoil the appearance. Like steps, they are welded or bolted together, which increases the production process and increases costs.Also, as mentioned above, they have drawbacks such as rattling and loosening, and the risk of danger during work due to these. .

The present invention consists of a gate consisting of a frame body and a wall plate part,
The wall board is formed so that it can be folded and unfolded and assembled into the frame, and when the gate is opened by tilting it downwards outside the loading platform, the wall board bends and moves up and down to the outside of the frame, either manually or by the load of the wall board itself. When the step plate is raised and closed, the wall plate part is expanded manually or by a load on the wall plate part, and the original wall surface is formed on the frame body. This idea was designed to eliminate problems, ensure safety during work, reduce materials, reduce production processes, and reduce production costs.

Means for Solving the Problems The present invention has a bearing hole 2 in the upper part of the inner surface 1b of the left and right side edges 1a of the frame 1, and a guide groove 3 in the lower part from the middle of the inner surface 1b. Frame 1
The wall plate part 4 that fits inside the support plate 5 and the support plate 5
A step plate 6 having a height h slightly lower than the height H of the support plate 5 is formed by bendably connecting the support plate 5 with a support shaft 7 protruding from the left and right side edges 5a of the support plate 5 into the left and right bearing holes 2. A lifting shaft 8 is rotatably fitted and protrudes below the left and right side edges 6a of the step plate 6.
are fitted into the left and right guide grooves 3 so as to be movable up and down.

Function Since the present invention is constructed as described above, the frame 1 is attached to the rear peripheral edge 9a of the loading platform 9 when used as a rear gate that also functions as a step, and the side peripheral edge 9b of the loading platform 9 when used as a side gate that also functions as a step. The frame 1 is attached to the cargo platform 9 around the hinges 10, 10 in order to open the gate (Fig. 1).
When the outside of the wall board part 4 is tilted downward and further drooped, the wall board part 4
At the same time that the inner surface of the step plate is exposed to the outside, the vertical positional relationship of the support plate 5 and the step plate 6 is reversed (Fig. 2).
Due to the weight of the step plate 6, the lifting shafts 8 on both sides of the step plate 6
8 descends along the guide grooves 3, 3 of the frame 1, so that the wall plate portion 4 bends outward at the connecting portion with the support plate 5, and at the same time the support plate 5 , 7 in the outward direction. The height h of the step plate 6 is slightly lower than the height H of the support plate 5, and the step plate 6 is connected to the support plate 5 so as to be foldable and unfoldable. 3, the step plate 6 does not overlap with the support plate 5, and the support plate 5 itself is inclined, and the step plate 6 is connected to the inclined support plate 5.
and lifting shafts 8, 8 that abut against the ends of the guide grooves 3, 3.
The loading platform 9 is supported by the loading platform 9 to maintain its horizontal position, and a step for raising and lowering is constructed below the outside of the loading platform 9. At the same time, the rear or side portion of the loading platform is opened.

Next, after the work is completed, when the frame 1 is lifted upward around the hinges 10, 10 and rotated in the opposite direction to stand it up, the support plate 5 will be located at the top and the step plate 6 will be located at the bottom. Therefore, due to the weight of the step plate 6, the lifting shafts 8, 8 were guided by the guide grooves 3, 3 and began to descend together with the step plate 6, and at the same time, they were bent together with the step plate 6. The support plate 5 rotates around the support shaft 7 in the opposite direction to the above-described direction and unfolds together with the step plate 6, and is supported by the step plate 6 at the position where the lifting shafts 8, 8 hit the starting ends of the guide grooves 3, 3. All the plates 5 are expanded to become flat, the original wall plate part 4 is restored inside the frame 1, a gate is formed together with the frame 1, and the gate stands up at the rear or side of the loading platform 9 to close it off. I will do it.

Embodiment An embodiment of the present invention will be explained with reference to a drawing illustrating the rear of a vehicle body in which a step gate is attached to the rear of a loading platform so as to be able to rise and fall freely.
Reference numeral 1 denotes a frame body, and this frame body 1 is formed in a size and shape that fits the mutual openings at the rear of gates 11, 11 fixed upright on the left and right side edges of the loading platform 9 of the vehicle body. In the inner surface 1b of the left and right side edges 1a of 1, a bearing hole 2 is formed at the upper end, and a guide groove 3 is formed from the middle of the inner surface 1b to the lower end. Reference numeral 4 denotes a wall plate part fitted into the frame 1, and the wall plate part 4 has a support plate 5 disposed in the upper part of the frame body 1, and a support plate 5 disposed in the lower part, and has a height higher than the height H of the support plate 5. The support plate 5 and the step plate 6 are connected to a hinge 1 attached to the outer surface of the wall panel 4.
2 and 12 are connected so that they can be folded inward and unfolded. Further, at the left and right ends of the upper part of the support plate 5, support shafts 7, 7 are made to protrude facing the bearing hole 2 and are fixed by fixing plates 13, 13, and a step plate 6 is attached.
Lifting shafts 8, 8 are made to protrude from the left and right ends of the lower part thereof, facing the guide grooves 3, 3, and are fixed by fixing plates 14, 14. The support shafts 7, 7 are rotatably fitted into the bearing holes 2, 2, and the elevating shafts 8, 8 are fitted into the guide grooves 3, 3 so as to be able to move up and down. It is attached in the body 1 so that it can be folded and expanded freely. Then, the frame body 1 is placed between the left and right gates 11, 11, and the hinge 1 is attached to the rear peripheral edge 9a of the loading platform 9.
It can be attached freely through 0 and 10.

Therefore, when the gate of the present invention is installed as a side gate in place of a gate or a part of a gate, the length of the gate is approximately the length of the side peripheral edge 9b of the loading platform 9 in the former case. In the latter case, the side periphery 9b other than the part where the flap is erected.
In either case, the frame 1 is attached to the edge of the loading platform 9 via a hinge so as to be able to rise and fall freely, as in the embodiment.

In the figure, 15 is a non-slip groove carved into the surface of the step plate 6, and 16 is a gate 11 that opens when the gate is closed.
In order to fix the frame body 1 to the frame body 1, a locking/detaching tool is provided on the rear surface of the gate 11, and reference numeral 17 is a receiving device provided on the outer surface of the frame body 1 opposite to the locking/detaching tool. Reference numeral 18 denotes a chain-shaped holder provided to keep the gate in a horizontal state when the gate is opened. are connected. Reference numeral 21 denotes a catch provided on the inside and upper part of the frame 1 so that the hook 20 can be engaged and detached.

Effects According to the present invention, when the gate is rotated and folded down to hang down from the loading platform, the wall plate part is bent and the step supported by the support plate is bent outward of the frame that constitutes the gate. is formed, so if the gate is installed as a rear gate on the rear edge of the loading platform, this step plate can be used for raising and lowering the rear of the loading platform. When installed, it can be used for raising and lowering the side of the loading platform, and the wall plate itself can also be used as a step plate, making it easy to install conventional fixed or driven lifting plates or footrests. is no longer necessary, and when the frame is erected, the support plate and step plate unfold to form a flat wall panel, and this eliminates the problems associated with conventional interference, rattling, and loosening. Problems such as danger during work, the need for installation space, the consumption of materials, the complexity of the manufacturing process, and the resulting increase in production costs are eliminated, and the steps can be formed manually or by the weight of the step plate. It is simple and economical because it does not require special energy, and when it is fixed in an upright position, it can function as a conventional rear gate or side gate with a frame and a wall plate part that unfolds and becomes a flat surface. It is.

[Brief explanation of the drawing]

The figures show an example of the implementation of the present invention. Figure 1 is a perspective view of the main parts of the present invention installed as a rear gate on the rear of a truck bed, showing the closed state, and Figure 2 shows the gate opened. Figure 3 is an exploded perspective view of the gate, Figure 4 is a cross-sectional view taken along the line AA in Figure 1, and Figure 5 is a perspective view of the main part of the gate with the wall board folded and a step formed when it hangs down. FIG. 3 is a longitudinal side view of the gate held horizontally. Code, 1...Frame body, 1a...Side edge, 1b...Inner surface, 2...Bearing hole, 3...Guide groove, 4...Wall plate portion, 5...Support plate, H...Height, 5a...side edge,
6... Step plate, h... Height, 6a... Side edge,
7... Support shaft, 8... Lifting shaft, 9... Loading platform, 9a...
... Rear periphery, 9b... Side periphery, 10... Hinge, 11... Tilt, 12... Hinge, 13...
Fixed plate, 14... Fixed plate, 15... Anti-slip groove,
16...Latching/detaching tool, 17...Receptacle, 18...Holder, 19...Support, 20...Hook, 21...
Receptacle.

Claims (1)

[Scope of utility model registration request] A wall plate having a bearing hole 2 in the upper part and a guide groove 3 extending downward from the middle of the inner surface 1b on the inner surface 1b of the left and right side edges 1a of the frame 1, and further fitting into the frame 1. The portion 4 is formed by bendably connecting a support plate 5 and a step plate 6 having a height h slightly lower than the height H of the support plate 5, and is provided protruding from the left and right side edges 5a of the support plate 5. The supported shaft 7 is inserted into the left and right bearing holes 2.
A freight vehicle characterized in that a lift shaft 8 protruding below the left and right side edges 6a of the step plate 6 is fitted in the left and right guide grooves 3 so as to be rotatable therein. A gate that doubles as a step to be attached to the loading platform.