JPH0649496U - Road stabilizer device for cargo handling vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a load stabilizer device for preventing load collapse at low cost. [Configuration] Mast 3 erected on the vehicle body 2 and the mast 3
In a cargo handling vehicle 1 having a cargo handling tool 6 that is vertically movable along the above, a pressing plate 9 that can be located above the cargo handling tool 6 and an arm 10 that pivotally supports the pressing plate 9 are provided. Since it is configured to be fixed to the mast 3, the load stabilizer device can be attached to an existing cargo handling vehicle at a very low cost and easily, and the load stabilizer device itself has no drive source. No component is required, and the center of gravity can be prevented from shifting forward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a load stabilizer device for a cargo handling vehicle, and more particularly, to a device capable of reducing manufacturing cost.

[0002]

[Prior art]

 In the past, especially in cargo handling vehicles used in unmanned transportation systems, in order to ensure the safety of the system when handling unsteady cargo, it is necessary to reduce the traveling speed during cargo transportation and to accelerate and decelerate suddenly. Are being prevented.

However, in such a low speed traveling control, the cycle time is shortened, so that the load stabilizer device is often mounted. Generally, as shown in FIG. 5, the load stabilizer device includes a load stabilizer device C mounted on a cargo handling vehicle A above a fork E so as to be able to move up and down by a cylinder D, and after a scoop of a load W with the fork E, The cylinder D is operated to press the load stabilizer device C against the upper surface of the load W to prevent the load collapse during cargo handling or traveling.

[0004]

[Problems to be solved by the device]

 However, if such a load stabilizer device C is mounted, it is inevitable that the manufacturing cost will be increased, and since the cylinder D etc. for vertically moving the load stabilizer device C are mounted, the weight of the cargo handling vehicle will be increased. There is a problem that the center of gravity of A shifts to the front and the load must be reduced.

The present invention has been devised in view of such problems, and an object thereof is to provide a load stabilizer device C for preventing load collapse at low cost.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a cargo handling vehicle including a mast that is erected on a vehicle body and a cargo handling tool that is vertically movable along the mast. And a holding plate that can be located above, and an arm that pivotally supports the holding plate fixed to the mast.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a cargo handling vehicle 1 equipped with the present invention, and FIG. 2 is a plan view of the same.

In the figure, in this example, the cargo handling vehicle 1 is shown as being used in an unmanned transportation system, but it should not be understood as being limited to this, and it also includes a manned cargo handling vehicle. is there. In the cargo handling vehicle 1, a road wheel 12 is rotatably supported in front of the vehicle body 2, while a drive wheel 13 which is a driving and steering wheel is provided in the rear portion. Further, a contact type bumper portion 14 is provided on the rear portion of the vehicle body 2.

Further, the vehicle body 2 is provided with a mast 3 which can be moved forward and backward, and a cargo handling tool 6 is engaged with the mast 3 by a lift cylinder 7 so as to be vertically movable. The cargo handling tool 6 is composed of a fork 5 for picking up a load (not shown), and a backrest 4 for holding the fork 5 in a mooring manner and for preventing the load from tilting toward the cargo handling vehicle 1 side. . In this example, the fixed mast 3 has a relatively low lift, and is mainly used in a so-called direct storage warehouse for directly storing the load on the floor without using rack equipment such as racks. To do.

As is apparent from FIG. 2, an arm 10 is fixed to the upper portion of the mast 3, and a pressing plate 9 is rotatably pivotally attached to the other end of the arm 10 by a support shaft 11. . The mast 3 is a fixed mast that can move horizontally but cannot move vertically.

A pair of left and right arms 10 are provided, do not contact the backrest 4 in plan view, are bent so as to cover the backrest 4, and are formed to extend in front of the cargo handling vehicle 1. Further, the pressing plate 9 is located substantially above the fork 5 and can be formed in a shape according to the package shape.

In this example, the pressing plate 9 has a load detection sensor 15 mounted on the lower surface thereof. More specifically, a sheet-shaped contact sensor, a limit switch, a pressure sensor, and the like are provided, and it is possible to detect that the pressing plate 9 has come into contact with a load. In addition to the above, a pilot type relief valve is provided in the hydraulic circuit of the lift cylinder 7 according to the state of the load to detect the load increase when the upper surface of the load contacts the pressing plate 9. It can also be configured as follows.

The operation of the present invention configured as above will be described. As illustrated in FIG. 3, the fork 5 is inserted into the pallet P of the load W and the fork 5 is lifted as it is. Here, the upper surface of the load W operates the load detection sensor 15 of the pressing plate 9, and when the detection signal of the load detection sensor 15 is input to the control device (not shown), the rise of the fork 5 may be stopped.

That is, in the present invention, the load stabilizer device 8 can be fixed to the mast 3 without moving up and down, and the lifting operation of the fork 5 can be used to fix and support the load W. Become. As a result, no cylinders or hydraulic pipes for vertically moving the load stabilizer device 8 are required.

Although the height dimension H of the load W is relatively high in the example illustrated in FIG. 3, when the height dimension L of the load W is relatively low as shown in FIG. Can also be applied. In such a case, since the arm 10 is formed so as to cover the backrest 4 as described above, even if the backrest 4 rises beyond the position of the arm 10, both of them do not interfere with each other and the forks do not interfere with each other. It becomes possible to raise 5.

When used for other than the unmanned transportation system, the above-mentioned load detection sensor 15 can be omitted.

[00]

[Effect of device]

 As a result of adopting the above configuration, the present invention can be installed extremely easily and inexpensively on an existing cargo handling vehicle. Moreover, since the load stabilizer device itself does not have any drive source, the conventional components such as cylinders and hydraulic pipes are not required at all, and it is possible to prevent the center of gravity from shifting to the front, and also to reduce the load. The problems such as the reduction of power consumption will be solved.

[Brief description of drawings]

FIG. 1 is a side view of a cargo handling vehicle equipped with the present invention.

FIG. 2 is a plan view of a cargo handling vehicle equipped with the present invention.

FIG. 3 is a side view for explaining the operation of the present invention.

FIG. 4 is a side view for explaining the operation of the present invention.

FIG. 5 is a side view of a cargo handling vehicle equipped with a conventional road stabilizer device.

[Explanation of symbols]

 1 Cargo Handling Vehicle 3 Fixed Mast 4 Backrest 5 Fork 6 Cargo Handling Equipment 7 Lift Cylinder 8 Load Stabilizer Device 9 Holding Plate 10 Arm 11 Support Shaft 15 Load Detection Sensor

Claims (1)

[Scope of utility model registration request] 1. A cargo handling vehicle comprising a mast that is erected on a vehicle body and a cargo handling tool that is vertically movable along the mast, and a holding plate that can be located above the cargo handling tool. A load stabilizer device for a cargo handling vehicle, wherein an arm pivotally supporting the pressing plate is fixed to the mast.