JPH0536743Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention provides a vehicle transport vehicle for transporting construction vehicles, etc.
In particular, the present invention relates to a support leg device for a vehicle transport vehicle that facilitates loading of a vehicle by sliding a cargo box backward in an inclined state.

<Prior art> A vehicle transport vehicle that loads vehicles by sliding a cargo box backwards has separate supporting legs on the vehicle body and the cargo box to support the vehicle body and cargo box when loading and unloading the vehicle. There is. As support leg devices for such vehicle carriers, conventionally, the second,
There are some as shown in Figures 3 and 4.

In these figures, 11 is a car body, and the car body 1
A dump frame 12 is provided on top of the dump frame 1 .

A hinge bracket 13 is vertically installed at the rear end of the dump frame 12.
3 is pivotally supported on the vehicle body 11 by a hinge shaft 14, so that the dump frame 12 can be tilted. Further, a lifting device 15 is provided between the vehicle body 11 and the dump frame 12,
Dump cylinder 16 that is part of the hoisting device 15
By extending the dump frame 12, the dump frame 12 can be tilted.

A loading box 17 for loading a vehicle is mounted on the dump frame 12, and the dump frame 12 and the loading box 17
A sliding cylinder 18 extending in the front-rear direction is provided between the housing and the housing, and when the sliding cylinder 18 is extended, the cargo box 17 slides rearward.

The rear side of the cargo box 17 is closed by securing the top and bottom of the rear sliding door 24 to the cargo box 17. When either one of the upper and lower lashings is released, the rear sliding door 24 can be rotated and opened, and especially when the upper lashing is released, the rear sliding door 24 comes to play the role of an awning board. ing. In addition, support legs 25 for the cargo box are vertically provided below the rear of the cargo box 17, and when the cargo box 17 is slid backward, the support legs 25 for the cargo box come into contact with the ground and support the cargo box 17. .

26 is a support leg for the vehicle body provided at the rear of the vehicle body 11. The support leg 26 is connected to the hinge shaft 14
It is pivotally connected to the vehicle body 11 by means of a screwdriver, so that it can swing back and forth. A spring 27 is provided between the upper part of the support leg 26 and the dump frame 12, and this spring 27 always urges the support leg 26 in the extending direction, and when the support leg 26 is at a predetermined extended position, the stopper member on the vehicle body 11 side 28 and is held in that position.

The stopper member 28 is connected to the vehicle body support leg 2.
6 is fixed to the vehicle body 11 so as to come into contact with the vehicle body support leg 26 at a position slightly rotated backward from the vertical line passing through the hinge shaft 14.

Reference numeral 29 denotes a guide piece protruding from the outer surface of the vehicle body support leg 26, and the guide piece 29 is formed into a flat shape. Pedestal 3 of the support leg 25 for the above-mentioned cargo box
A roller 40 serving as a regulating member is attached to the inside of the shaft 32 that pivotally supports the roller 1 . When the loading box 17 is slid forward, the roller 40 attached to the loading box support leg 25 slides forward and comes into contact with the guide piece 29, and the roller 40
The guide piece 29 and the vehicle body support leg 26 are rotated forward while sliding forward to be stored forward.

The loading box 17 is then used to load and unload the vehicle.
When the vehicle body support leg 26 is tilted and then slid rearward, the vehicle body support leg 26, which was held in the retracted state by the cargo box support leg 25 at the initial stage of sliding, is released. As a result, the vehicle body support leg 26 is biased by the spring 27 and becomes extended. After that, the packing box 17 is further slid backward, and the packing box 1
When a load is applied from 7 to the rear part of the vehicle body 11, the vehicle body support legs 26 touch the ground and support the rear part of the vehicle body. Therefore, it is possible to prevent the front part of the vehicle body 11 from lifting up due to the load applied to the rear part of the vehicle body 11 from the cargo box 17.

After that, when the cargo box 17 is further slid rearward, the cargo box support legs 25 touch the ground, the cargo box support legs 25 support the rear part of the cargo box 17, and the front part of the cargo box 17 is connected to the vehicle body 11. Vehicle body support leg 26 that supports the rear part of
indirectly supported by

In this way, the cargo box support legs 25 and the vehicle body support legs 26 support the cargo box 17 and the vehicle body 11 during loading and unloading of the vehicle.

The reason why the support leg 26 for the vehicle body is biased rearward by the spring 27 so that the support leg 26 for the vehicle body contacts the stopper member 28 in a state where the support leg 26 for the vehicle body is rotated slightly backward is due to the fact that This is to prevent the vehicle body support leg 26 from rotating forward when a load is applied. If the vehicle body support legs 26 rotate forward when a load is applied to the vehicle body 11, the vehicle body support legs 26 will no longer be able to support the rear portion of the vehicle body 11.

<Problems to be Solved by the Invention> However, in the above-mentioned conventional support leg device for a vehicle carrier, the vehicle body support leg 26 is always urged in the projecting direction by the spring 27. Therefore, if the spring 27 becomes weak due to long-term use, this vehicle body support leg 2
6 overcomes the biasing force of the spring 27 due to its own weight and rotates forward, making it impossible to maintain its posture, which is dangerous. Another problem is that the number of parts increases due to the use of springs, making maintenance and inspection time-consuming.

SUMMARY OF THE INVENTION An object of this invention is to provide a support leg device for a vehicle transport vehicle, which is equipped with a support leg for a vehicle body that can reliably support the vehicle body without the need for constant biasing in the extending direction with a spring.

<Means for Solving the Problem> In order to achieve the above object, this invention provides a dump frame on the vehicle body so as to be tiltable, a cargo box that can be slid in the front and back direction along the dump frame, and In a vehicle transport vehicle that transports a vehicle by loading a vehicle into a cargo box, a vehicle body support leg is pivotally supported at the rear of the vehicle body so as to be able to swing back and forth, and a cargo box support leg is provided vertically at the rear of the cargo box. The car body support leg is provided with a guide piece, and when the cargo box slides forward on the cargo box support leg, the car body support leg is engaged with the guide piece to rotate the car body support leg forward. In a support leg device for a vehicle transport vehicle that is provided with a regulating member that stores the vehicle body support leg forward, the vehicle body support leg has a shaft support pivotally supported on the vehicle body, and a support leg that is connected to a shaft support that is pivotally supported on the vehicle body, and that when the vehicle body receives a load. and a grounding part that makes contact with the ground, and the vehicle body support leg is configured such that when the grounding part makes contact with the ground, the support leg rotates rearward about the pivot support and comes into contact with a stopper part provided on the vehicle body. , is characterized by being bent backward near the pivot support.

<Function> After tilting the cargo box to load or unload the vehicle,
If you slide backwards, at the beginning of this slide,
The engagement between the guide piece of the vehicle body support leg and the restriction member of the cargo box support leg is released. Then, the vehicle body support leg, which was held in the retracted state by being swung forward by the restriction member of the cargo box support leg, is released.

Then, due to its own weight, the vehicle body support leg
It rotates backwards around its pivot, and becomes suspended from the vehicle body. Since the vehicle body support leg is bent rearward near the shaft support,
In the above state, the ground contact portion of the vehicle body support leg is located at the rear of the pivot support. Therefore, when the vehicle body receives a load and the ground contact portion touches the ground, the vehicle body support leg receives a rotational moment such that it is rotated rearward about the shaft support. Then, the above vehicle body support leg becomes
It rotates slightly backwards and comes into contact with a stopper provided on the vehicle body. Therefore, according to this idea,
It is possible to prevent the vehicle body support leg from rotating forward when the ground contact portion touches the ground under a load from the rear of the vehicle body. Therefore, according to this invention, unlike the conventional example, it is possible to reliably support the vehicle body without constantly urging the spring in the projecting direction (rearward).

After that, when the cargo box is further slid rearward, the cargo box support legs touch the ground, the cargo box support legs support the rear of the cargo box, and the front of the cargo box is connected to the vehicle body that supports the rear of the vehicle. indirectly supported by support legs.

Next, when the cargo box is slid forward, at the end of the slide, the restriction member provided on the support leg for the cargo box engages with the guide piece provided on the support leg for the vehicle body, and the support leg for the cargo box moves forward. Accordingly, the vehicle body support leg is rotated forward against the gravity applied to the vehicle body support leg and is retracted to the front, and enters the retracted state.

As described above, according to the present invention, the rear part of the car body can be reliably supported by the car body support legs without the need to constantly bias the car body support legs in the extending direction using springs, so the system is safe even when used for a long period of time. Yes, maintenance and inspection are not time consuming.

<Example> This invention will be explained in detail below with reference to the illustrated example.

The support leg device in the vehicle carrier of this example is as follows:
The conventional support leg device shown in FIGS. 2, 3, and 4 does not have the spring 27, and instead of the vehicle body support leg 26, which is always urged in the extending direction by the spring 27, as shown in FIG. The difference from the conventional example is that the vehicle body support leg 1 is provided, and the other devices are the same as the conventional example.

This vehicle body support leg 1 has a bracket 2 as a pivot support, a ground contact portion 3, a leg body 7, and a guide piece 4.

The bracket 2 has a pentagonal shape, and a side surface 7a-1 of one end 7a of the leg body 7 is fixed to one side of the pentagon. Moreover, the above-mentioned side surface 7a-
A flat guide piece 4 is fixed approximately at the center of the side surface 7b adjacent to the side surface 7b. The guide piece 4 is fixed to the side surface 7b so as to have a slightly downward slope in the direction in which the leg body 7 extends from the bracket 2.

The grounding portion 3 is the other end 7c of the leg body 7.
It is fixed to the end surface 7c-1 of. This end face 7c
-1 and the side surface 7a- to which the bracket 2 is fixed.
The angle between the side surface extending from 1 is an acute angle.

The bracket 2 is pivotally supported at the rear of the vehicle body 11 by a hinge shaft 14. As shown in FIG. 1, the vehicle body support leg 1 is suspended from the rear of the vehicle body 1, and its overall shape is bent rearward near the bracket 2.

A stopper member 5 is fixed to the lower surface of the rear end of the vehicle body 11. The contact portion 5a of the stopper member 5 faces a surface extending from the side surface 7a-1 of the suspended vehicle support leg 1 with a slight gap therebetween.

As shown in FIG. 1, the vehicle body support leg 1 includes:
In a state where it is suspended from the rear of the vehicle body 11 by the hinge shaft 14, the ground contact portion 3 is located behind the vertical line g passing through the hinge shaft 14.

The support leg device for the vehicle transport vehicle of the above embodiment equipped with the above-mentioned vehicle body support leg 1 is such that when the cargo box 17 is tilted to load or unload a vehicle and then slid rearward, the above-mentioned The engagement between the guide piece 4 provided on the vehicle body support leg 1 and the roller 40 shown in FIG. 4, which is a regulating member provided on the cargo box support leg 25, is released. Then, the vehicle body support leg 1, which was held in the retracted state by being swung forward by the roller 40 of the cargo box support leg 25, is released.

Then, the vehicle body support leg 1 rotates rearward about the bracket 2 due to its own weight, and becomes suspended from the vehicle body 11, as shown in FIG. Since the vehicle body support leg 1 is bent rearward near the bracket 2, in the suspended state, the ground contact portion 3 of the vehicle body support leg 1 is located at the rear of the bracket 2. become. Therefore, when the vehicle body 11 receives a load and the grounding portion 3 touches the ground, the vehicle body support leg 1 receives a rotational moment that causes it to rotate rearward about the bracket 2. Then, the vehicle body support leg 1 rotates slightly rearward and comes into contact with the stopper member 5 provided on the lower surface of the rear end of the vehicle body 11, and the vehicle body support leg 1 receives force from the vehicle body 11 and rotates rearward. stop moving.

Therefore, according to the embodiment, it is possible to prevent the vehicle body support leg 1 from rotating forward when the ground contact portion 3 contacts the ground under a load from the rear of the vehicle body 11. Therefore, according to this embodiment, unlike the conventional example, the vehicle body 11 can be reliably supported without the need for the spring 27 to be constantly biased in the projecting direction.

After that, when the cargo box 17 is further slid rearward, the cargo box support legs 25 touch the ground, the cargo box support legs 25 support the rear part of the cargo box 17, and the front part of the cargo box 17 is connected to the vehicle body 11. It is indirectly supported by the vehicle body support leg 1 that supports the rear part of the vehicle body.

Next, when the cargo box 17 is slid forward, at the end of the slide, the roller 40 (see FIG. 4) provided on the support leg 25 for the cargo box engages with the guide piece 4 provided on the support leg 1 for the vehicle body. As the cargo box support leg 25 moves forward, the roller 40 slides along the guide piece 4, and the vehicle body support leg 1 rotates forward against the gravity applied to the vehicle body support leg 1. It is moved forward and retracted, and is in the retracted state.

In this way, according to this embodiment, the rear part of the vehicle body 11 can be reliably supported by the vehicle body support legs 1 without the need to constantly bias the vehicle body support legs 1 in the extending direction with springs, so that springs are not required. This makes it possible to maintain the posture safely and reliably even after long-term use, and since no springs are used, the number of parts is small and maintenance and inspection is not time-consuming.

<Effect of the invention> As is clear from the above, the vehicle body support leg of the support leg device in the vehicle carrier of this invention is pivotally supported at the rear of the vehicle body so as to be swingable back and forth, and the shaft supported on the vehicle body is The vehicle body has a branch and a grounding part that contacts the ground when the vehicle body receives a load, and is bent rearward near the shaft supporting part, and when the grounding part touches the ground, the vehicle body is bent backward using the pivoting part as a fulcrum. Since it rotates and comes into contact with a stopper provided on the vehicle body to support the vehicle body, the spring does not weaken and become unable to maintain its posture when used for a long period of time, unlike in conventional examples. It can be used safely for a long period of time, and since no springs are used, the number of parts is reduced, making maintenance and inspection easy.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a support leg for a vehicle body in an embodiment of the support leg device for a vehicle transport vehicle of this invention;
2, 3, and 4 are diagrams showing support leg devices in conventional vehicle carriers. 1, 26...Car body support leg, 3...Grounding part,
4... Guide piece, 11... Car body, 12... Dump frame, 14... Hinge shaft, 17... Loading box, 18... Slide cylinder, 25... Loading box support leg.

Claims (1)

[Scope of Claim for Utility Model Registration] A vehicle that has a dump frame tiltably provided on the vehicle body, a cargo box that can be slid forward and backward along the dump frame, and that transports the vehicle by loading the vehicle onto the cargo box. In the transport vehicle, a vehicle body support leg pivotally supported at the rear of the vehicle body so as to be swingable back and forth;
A support leg for a cargo box is provided vertically at the rear of the cargo box, and a guide piece is provided on the support leg for the vehicle body;
Vehicle transportation in which a regulating member is provided on the cargo box support leg to engage with the guide piece to rotate the vehicle body support leg forward and store the vehicle body support leg forward when the cargo box slides forward. In the support leg device for a vehicle, the vehicle body support leg has a shaft support pivotally supported by the vehicle body, and a grounding portion that comes into contact with the ground when the vehicle body receives a load, and is bent rearward near the shaft support so that when the ground contact portion touches the ground, it pivots rearward about the shaft support and comes into contact with a stopper provided on the vehicle body. Support leg device for vehicle carriers.