JP2536590Y2 - Cargo box sliding control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo box sliding regulating device for a truck, which regulates the sliding of a cargo box provided slidably in a front-rear direction on a tilting frame.

[0002]

2. Description of the Related Art Conventionally, as a cargo box sliding regulation device for a lorry, a tilting frame is provided on a vehicle frame so as to be tiltable around a rear end portion thereof, and a packing box is slidable forward and backward on the tilting frame. The tilting frame and the packing box are tilted by the dump cylinder mounted between the vehicle frame and the tilting frame, and the packing box is moved in the front-rear direction on the tilting frame by the sliding cylinder interposed between the tilting frame and the packing box. It is configured to be slid and to lock and release the sliding of the packing box on the vehicle frame by operating the operation lever. The cargo box is slid backward while the container is tilted at an appropriate angle to discharge or unload the cargo.

[0003]

However, in the above-described conventional device, the locking and release of the packing box is performed by rotating the operation lever to the locking position and the release position, respectively. This switching operation is troublesome, and there is a risk that the securing / releasing operation may be forgotten.

[0004]

According to the present invention, there is provided a cargo box sliding control device for a truck, in which a tilting frame is provided on a vehicle frame so as to be tiltable about a rear hinge, and the packing box slides forward and backward on the tilting frame. In a lorry provided movably, an engaging member is rotatably provided on the tilting frame, and one end of the engaging member is detachable from an engaged member provided on the packing box. In addition to the hook portion, the other end peripheral portion of the engaging member is formed on a cam surface, and the tilting frame is provided with an operating lever connected to the engaging member via a connecting member in a swingable manner. The operating lever includes a securing position at which the hook portion of the engaging member engages with the engaged member to secure the sliding of the packing box, and a sliding position of the packing box when the hook portion is detached from the engaging member. It is provided to be able to swing freely with the release position that allows movement, and exceeds the predetermined switching position by the biasing member. Held in fastened position or release position when, on the other hand, the the packing box sliding contact with the cam surface of the engaging member in a state where the operation lever is disposed in the release position,
A sliding roller is provided for rotating the engaging member to dispose the operation lever at the securing position. The hook of the engaging member is engaged with the engaged member. In this case, the operating lever, which is pivoted from the securing position to the release position with the rotation of the engaging member, is set so as to be disposed again at the securing position without exceeding the switching position. It is a thing.

[0005]

When the packing box slides rearward, the sliding roller of the packing box slides on the cam surface of the engaging member to forcibly rotate the engaging member to a position where the engaging member is engaged with the engaged member. By engaging the engaging member with the engaged member when the packing box slides to the maximum forward on the tilting frame, the securing of the packing box on the tilting frame can be performed without operating the operation lever. Do it automatically.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of the truck of the present invention.

In FIG. 1, reference numeral 2 denotes a tilting frame provided on a vehicle frame 1 so as to be tiltable. The tilting frame 2 is pivotally mounted on a pivot (rear hinge) 3 via a bracket 2a fixed to the tilting frame 2. It is tiltably supported. A packing box 5 is mounted on the tilting frame 2 so as to be slidable back and forth. A dump cylinder (not shown) for tilting the tilt frame 2 is provided between the vehicle frame 1 and the tilt frame 2, and a slide cylinder 6 for sliding the load box 5 back and forth is provided between the tilt frame 2 and the load box 5. Have been. By extending the dump cylinder and the slide cylinder 6, the packing box 5 is tilted at an appropriate angle as shown in FIG. Can slide.

Then, a pair of left and right walking boards 4 are erected between the rear end of the packing box 5 and the ground while the packing box 5 is slid backward as described above, so that the vehicle can be unloaded. Will be possible.

[0010] Support rollers 9 are provided on both sides of the bottom rear end of the packing box 5 to support the rear end of the packing box 5 when the packing box 5 is slid as described above. It is supported by rollers 9.

Reference numeral 8 in FIG. 1 denotes a rear door that is pivotally supported at the rear end of the packing box 5 so as to be openable and closable about an upper hinge or a lower hinge.

A support leg 10 is provided at the rear end of the vehicle frame 1. The support legs 10 support the rear end of the vehicle frame 1 when the packing box 5 slides rearward.
It is configured to take a support position C for supporting the rear end of the vehicle frame 1 by expansion and contraction of a cylinder (not shown) disposed between the vehicle frame 1 and the vehicle frame 1, and a storage position D pivotally disposed forward. .

A restricting member 20 is provided between the tilting frame 2 and the packing box 5 as shown in FIGS.

The regulating member 20 regulates the rearward sliding of the packing box 5 and is provided on the tilting frame 2 so as to be rotatable.
The distal end portion is disposed in the front-rear direction along the tilting frame 2 and the engaging member 22 formed on the hook portion 21 which is detachable from the engaged member 51 provided on the packing box 5 via the bracket 53. A connecting rod (connecting member) 24 having one end connected to the engaging member 22, an operation lever 25 slidably provided on the tilting frame 2 and connected to the other end of the connecting rod 24, 5 is provided with a sliding roller 52 provided on the second roller 5.

The other end of the engaging member 22 is formed on the cam surface 23 with which the sliding contact roller 52 slides while the hook 21 is separated from the engaged member 51.

The operating lever 25 is connected to the engaging member 22.
The hook portion 21 engages with the engaged member 52 to secure the sliding of the packing box 5, and the hook portion 21 separates from the engaged member 52 and slides the packing box 5. It is provided so as to be swingable at an allowable release position B. A spring (biasing member) 26 is connected between the operation lever 25 and the tilting frame 2. When the spring 26 exceeds the switching position X shown in FIG. It is configured to be urged, and is held at the securing position A or the release position B by the stopper 27.

When the hook 21 of the engaging member 22 is disengaged from the engaged member 51, the sliding roller 52 slides on the cam surface 23 by sliding the packing box 5 backward. By rotating the engaging member 22 in the counterclockwise direction in FIG. 2, the hook 21 of the engaging member 22 is engaged with the engaged member 51 so as to restrict the sliding of the packing box 5. It is configured. That is, by sliding the packing box 5 backward,
The operation lever 25 disposed at the release position B by the sliding contact roller 52 and the cam surface is rotated toward the securing position A to a position beyond the switching position X against the urging force of the spring 26. At the securing position A.

Next, the regulating member 20 constructed as described above is used.
Will be described.

As shown in FIG. 1, when the packing box 5 is slid rearward in a state where the packing box 5 is tilted appropriately from the stored state, first, the cylinder is extended and the support leg 10 is rotated to the support position C, and Then, the operation lever 25 is rotated from the securing position A to the release position B. As a result, the engagement member 22 is
At this time, the hook 21 is disengaged from the engaged member 51 by turning clockwise, and the packing box 5 is slidable on the tilting frame 2. At this time, the cam surface 23 of the engaging member 22 is located above the packing box 5 side indicated by a two-dot chain line in FIG.

Thereafter, the dump cylinder is extended to tilt the tilt frame 2 and the packing box 5 to an appropriate angle, and then the slide cylinder 6 is expanded to slide the packing box 5 backward on the tilt frame 2. Here, at the stage where the packing box 5 is slid backward, the sliding roller 52 of the packing box 5 slides on the cam surface 23 of the engaging member 22, thereby causing the engaging member 22 to rotate counterclockwise. , And the operation lever 25 disposed at the release position B is locked at the securing position A against the urging force of the spring 26.
Then, the operation lever 25 is forcibly disposed at the securing position A. As a result, the engaging member 22 is positioned at the position indicated by the solid line in FIG.
1 is disposed at a position where it is engaged with the engaged member 51 of the packing box 5.

Then, the packing box 5 is slid rearward to a position where the rear end thereof is close to the ground, and in this state, the step board 4 is erected at the rear of the packing box 5 so that the packing box 5 is connected to the ground. Unloading of vehicles and the like is performed between them (see FIG. 1).

Next, when the packing box 5 is to be stored, the slide cylinder 6 is retracted from the state where the packing box 5 is slid rearward as described above, and the packing box 5 is slid forward to tilt the tilting frame. 2
Place up to the maximum forward position. Here, at the stage where the packing box 5 is slid forward and arranged at the maximum front position, the engaged member 51 abuts on the tip of the hook portion 21 of the engaging member 22, and the packing box 5 is further moved forward. , The engaging member 22 is rotated clockwise. As a result, the engaged member 51 is engaged with the hook portion 21 to secure the sliding of the packing box 5 on the vehicle frame 1. At this time, the operation lever 25 rotates from the securing position A to the release position B with the rotation of the engaging member 22, but is held at the securing position A without exceeding the switching position X.

With this operation, the operation of securing / releasing the sliding of the packing box 5 is performed simply by operating the operation lever 25 from the securing position A to the releasing position B, and the operation from the releasing position B to the securing position A is automatically performed. It is done on a regular basis.

[0024]

As described above, according to the present invention, when the packing box slides backward, the sliding roller of the packing box slides on the cam surface of the engaging member to cover the engaging member. By forcibly rotating to a position where it engages with the engaging member and engaging the engaging member with the engaged member when the packing box slides to the maximum forward position on the tilting frame, Can be automatically secured without operating the operation lever, which saves time and effort.
Moreover, when the engagement member engages with the engaged member, the operation lever is allowed to rotate within a range not exceeding the switching position, so that the configuration of the device is simple and reliable. The box can be tied and secure.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a lorry.

FIG. 2 is a side view showing the configuration of the packing box sliding restriction device according to the present invention.

FIG. 3 is a plan view showing a configuration of the packing box sliding restriction device according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 vehicle frame 2 tilting frame 5 packing box 51 engaged member 52 sliding roller 21 hook portion 22 engaging member 23 cam surface 24 connecting rod (connecting member) 25 operating lever A locking position B release position

Claims (1)

(57) [Scope of request for utility model registration] 1. A truck in which a tilting frame is provided on a vehicle frame so as to be tiltable about a rear hinge, and a packing box is provided on the tilting frame so as to be slidable back and forth. Is rotatably provided, and one end of the engaging member is formed as a hook portion that can be disengaged from the engaged member provided on the packing box, and the other peripheral edge of the other end of the engaging member is a cam surface. An operating lever connected to the engaging member via a connecting member is swingably provided on the tilting frame, and the operating lever is configured such that a hook portion of the engaging member is an engaged member. And a release position in which the hook portion is disengaged from the engaged member to allow the load box to slide, and a biasing position is provided. The member is held at the securing position or the release position at the time when the predetermined switching position is exceeded by the member. The box sliding contact with the cam surface of the engaging member in a state where the operation lever is disposed in the release position, the sliding roller is provided to place the lashing position the operating lever is rotated the engagement member , The engaging member and the engaged member include an engaging portion.
When the hook portion of the material is engaged with the
As the joint member rotates, it moves from the securing position to the release position
The swinging operation lever is moved again without exceeding the switching position.
A cargo box sliding restriction device for a truck, wherein the device is set to be arranged at a securing position .