JP2536589Y2 - Cargo box sliding control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a truck in which a packing box is slidable in the front-rear direction on a tilting frame, based on a rotation position of a support leg provided at a rear portion of a car body. The present invention relates to a packing box sliding regulating device for regulating sliding.

[0002]

2. Description of the Related Art Conventionally, a tilting frame is provided on a vehicle frame so as to be tiltable around a rear end portion, and a packing box is mounted on the tilting frame so as to be slidable back and forth, and is interposed between the vehicle frame and the tilting frame. There is provided a lorry in which the tilting frame and the cargo box are tilted by a dump cylinder, and the packing box is slid in the front-rear direction on a support frame by a slide cylinder interposed between the tilting frame and the packing box. Then, by extending the dump cylinder and the slide cylinder, the packing box is tilted at an appropriate angle, and then the packing box is slid rearward to a position where the rear end thereof approaches the ground. In this way, loading and unloading of vehicles and the like was performed between the ground and the packing box by installing a footboard.

[0003]

[Problem to be Solved by the Invention] In the truck constructed as described above, the packing box is slidable in the front-rear direction. Ensure that the packing box does not slide so that it does not slide.
It has been desired to improve the safety by allowing the packing box to slide only when the packing box is slid, such as when unloading.

In view of the above, the present invention focuses on always supporting the vehicle frame by rotating the support legs provided at the rear end of the vehicle frame to the supporting position when sliding the packing box. An object of the present invention is to provide a packing box sliding restricting device that reliably controls and releases the sliding of the packing box by engaging and disengaging the engaging member and the engaged member in conjunction with the rotation of the packing box. And

[0005]

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. A lorry is provided movably, and a supporting leg for supporting the vehicle frame at a rear end of the vehicle frame is rotatably provided at a support position and a storage position, and is rotatably supported by the tilting frame. An engagement member provided on the packing box and capable of being disengaged from and engaged with the engaged member, and rotatably supported by the tilting frame, one end of which is connected to the engagement member via a first connection member; A link member, and a second connecting member connected to the other end of the link member and the support leg, and a pivot point between the second connecting member and the other end of the link member is coaxial with the rear hinge. When the support leg is disposed at the storage position, the engaging member is To lock the packing box on the tilting frame and restrict the sliding of the packing box, and when the support leg is disposed at the supporting position, the engaging member is disengaged from the engaged member and the packing box is disengaged. Is released.

[0006]

The engagement and disengagement of the engaging member and the engaged member are performed in conjunction with the rotation of the support leg which is operated when the packing box is slid backward, thereby restricting the sliding of the packing box. Make sure to release it.

[0007]

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 centered 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. I have.
And, these dump cylinder and slide cylinder 6
The packing box 5 can be slid rearward on the tilting frame 2 to a position where the rear end is close to the ground in a state where the packing box 5 is inclined at an appropriate angle as shown in FIG.

Then, with the packing box 5 slid rearward, a pair of left and right walking boards 4 is provided between the rear end of the packing box 5 and the ground.
The vehicle can be unloaded by erection.

Support rollers 9 are provided on both sides of the rear end of the bottom of the packing box 5, and 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 a rear end of the vehicle frame 1.

The support legs 10 support the rear end of the vehicle frame 1 when the cargo box 5 slides rearward. As shown in FIG. It is composed of a leg body 12 rotatably supported via a roller, and a roller 13 connected between the distal ends of the leg bodies 12, and is disposed, for example, between the support leg 10 and the vehicle frame 1. It is configured to have a support position B for supporting the rear end of the vehicle frame 1 by expansion and contraction of a cylinder (not shown), and a storage position A which is pivotally disposed forward.

A restricting member 20 for restricting the rearward sliding of the packing box 2 when the supporting leg 10 is located at the supporting position B is connected to the supporting leg 10.

As shown in FIGS. 2 and 3, the restricting member 20 is rotatably supported by the tilting frame 2 and can be hooked on and disengaged from an engaged member 30 provided on the packing box 5. An engaging member 21 and a link member 23 rotatably supported by the tilting frame 2 and having one end connected to the engaging member 21 via a rod (first connecting member) 22; 23
And a connecting rod (second connecting member) 25 connected to the other end of the support leg 10 and the base end of the support leg 10.

The engaged member 30 is formed in a U-shape in plan view, and both ends thereof are fixed to a bracket 31 fixed to the back surface of the packing box 5.

The hook 21 is provided on the tilting frame 20 so as to correspond to the engaged member 30, and a hook-shaped tip portion is configured to be freely disengageable from a central portion of the engaged member 30. Have been.

The connecting portions of the connecting rod 25 and the rod 22 are pin-connected, and the connecting rod 25 and the supporting leg 1 are connected.
0 is connected to the base end of the support leg via an arm 26 provided on the center axis of rotation of the support leg. The pivot point α between the connecting rod 25 and the other end of the link member 23 is arranged coaxially with the rear hinge 3.

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 tilted from the stored state by an appropriate angle and then slid backward, first,
The support leg 10 is rotated to the support position B by extending the cylinder. With the rotation of the support leg 10, the link member 23 is rotated counterclockwise in FIG. 2 via the connecting rod 25, whereby the hook 21 is rotated clockwise and the hook 21 is engaged. The member 30 is detached. As a result,
The packing box 5 can be slid rearward on the tilting frame 2.

When the support leg 10 is rotated to the storage position A in the reverse operation when the packing box 5 is in the storage state, the link member 23 is rotated clockwise in FIG. Thereby, the hook 21 is rotated counterclockwise, and the hook 21 is engaged with the engaged member 30. As a result, the backward movement of the packing box 5 on the tilting frame 2 is restricted, and the packing box 5 is locked.

In this truck, by extending only the dump cylinder without extending the slide cylinder 6, it is possible to incline the cargo box 5 to the maximum inclination angle without sliding, and the sand and gravel can be tilted. It can also be used for loading such as.

[0024]

As described above, according to the present invention, the engagement between the engaging member and the engaged member is performed in conjunction with the rotation of the support leg operated when the packing box is slid backward. By performing the release, the sliding regulation and the release of the regulation of the packing box can be surely performed, and the engaging member can be engaged with the engaged member without play. A box sliding restriction device can be provided.

[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 front 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 3 rear hinge 5 packing box 21 hook (engaging member) 22 rod (first connecting member) 23 link member 25 connecting rod (second connecting member) 30 engaged member A storage position B support position α Pivot point between the second connecting member and the other end of the link member

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toshiyuki Tanaka 3-43, Shirite, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Shinmeiwa Industry Co., Ltd. Special Vehicle Equipment Division (56) References Japanese Utility Model 3-60134 (JP, U) Hikaru 2-128640 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A tilting frame is provided on a vehicle frame so as to be tiltable about a rear hinge, a packing box is provided on the tilting frame so as to be slidable back and forth, and the vehicle frame is supported by a rear end portion of the vehicle frame. In a lorry in which a support leg is rotatably provided at a support position and a storage position, the support leg is rotatably supported by the tilting frame, and is engageable with and disengageable from an engaged member provided on the packing box. A link member rotatably supported by the tilting frame and having one end connected to the engagement member via a first connection member; and a link connected to the other end of the link member and the support leg. The second
The second connecting member and the link member.
The pivot point with the other end is arranged coaxially with the rear hinge.
It is, together with the said engaging member and the support leg is disposed in the retracted position to restrict the sliding of by lashing the cargo box this crates on tilting frame engages with the engaged member, the support legs Wherein the engaging member is disengaged from the engaged member so as to release the regulation of the sliding of the cargo box when the is disposed at the supporting position.