JPH06278807A - Forking device - Google Patents

Abstract

PURPOSE:To provide a forking device for transferring a heavy object using a cantilever fork, which does not require any high rigidity body structure sustaining a moment load and can be embodies in a small dimension. CONSTITUTION:A load receiving roller 27 is installed at the side face of the second stage 22 of a fork slide part, and a load receiving guide plate 26 is provided on the accommodation rack side to which a heavy object is to be transferred, and thereby the object is placed on the fork lift part 23, and when overhanging is made from a picking self-mobile dolly body 20, the moment load is allowed to run off to the accommodation rack side so that the fork slide part can be designed in minor dimensions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forking device for a picking self-propelled vehicle for taking articles in and out of a storage rack in an automatic warehouse.

[0002]

2. Description of the Related Art In recent years, the effectiveness of automated warehouses that manage intermediate stocks of parts inventory such as work-in-progress at all production sites has been highly evaluated. For its miniaturization,
Simplification is required.

A conventional forking device will be described below with reference to the drawings. In a conventional forking device, as shown in the specific configuration of FIG. 1, a transfer arm 2 on a picking vehicle body 1 is installed on a lift plate 3, and a lift guide 4 and a lift drive motor 5 are used. The article 6 was moved by moving up and down.

[0004]

However, in the above-described structure, when the transfer arm 2 is moved to the left and right, all the load of the article 6 must be held by the picking self-propelled carriage main body 1 side, and the lifting and lowering is required. It is necessary to pay sufficient attention to the rigidity of the guide 4 and the like, and to secure the own weight of the picking vehicle body 1 side that can withstand the moment load.
There was a problem in reducing the size and weight of the entire mechanism.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a transfer arm having a roller for receiving a load on its side surface, and a guide plate for allowing the roller to travel above and release the load on the arm side. A storage rack provided, a drive motor that moves the transfer arm to the left and right, a drive motor that moves up and down the forklift, and a wire that transmits motion between the drive motor for this lifting operation and the plate that moves up and down. It is composed of a link mechanism.

[0006]

In the forking device of the present invention having the above-mentioned structure, the first fork slide portion and the second fork slide portion are horizontally extended by the horizontal drive means provided on the self-propelled carriage and accommodated. The forklift is moved by bringing a load receiving roller provided on the side surface of the second fork slide portion into contact with a load guide plate provided on a shelf and moving the forklift portion up and down by the vertical movement drive means and a link mechanism. The above article is stored in a predetermined storage rack.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, 14 is a picking self-propelled carriage main body, 15 is a transfer arm provided on the main body 14, 16 is a drive motor for left and right movement of the transfer arm 15,
17 is a drive motor for raising and lowering the transfer arm 15, and 18
Is an article to be transferred, and 19 is a load receiving roller provided on the side surface of the transfer arm 15. Further, the operation of the forking mechanism for transferring the article of the present invention will be described with reference to FIG. 20 is the same picking vehicle as 14 of FIG. 1, 21 is the first fork slide portion, 22 is the second fork slide portion that moves following the movement of 21, and 23 is 2
A forklift part that is provided on the upper and lower parts 2 and moves up and down.
4 is a wire pulley for transmitting a sliding motion, and 25 is a pulley 23.
1, a link plate 26 for transmitting the lifting movement of the load receiving guide plate provided on the storage shelf, 27 is the same load receiving roller as 19 in FIG. 1, and 28 is the fork slide parts 21, 2.
Reference numeral 29 denotes a wire for interlocking the movements of 2; 29, a tension spring for applying tension to the wire 28;

In the forking device having the above-mentioned structure, the second fork slide portion 22 is moved by following the fork slide portion 21 by the drive motor 16 moving left and right, and further, the wire 28 is moved in the direction indicated by 30. By moving the drive motor 17, the link plate 25 is rotated to vertically move the forklift portion 23.
Further, the load receiving roller 27 moves on the load receiving guide plate 26 provided on the storage shelf, so that the load of the transferred article is released to the shelf side, so that the moment load is not applied to the transfer arm side.

[0009]

As described above, according to the present invention, the lifting operation is limited to the tip of the arm among the transfer operations, and the left and right sliding portions are not lifted. Since it is possible to combine them, the transfer arm is not subjected to a moment load due to a load, and the rigidity can be reduced, so that the size and weight can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a forking device according to an embodiment of the present invention.

FIG. 2A is an operation explanatory diagram of the forking device, and FIG. 2B is an operation explanatory diagram of the forking device. FIG. 2C is an operation explanatory diagram of the forking device.

FIG. 3 is a perspective view of a conventional forking device.

FIG. 4 (a) is an operation explanatory diagram of the same forking device. (B) is an operation explanatory diagram of the same forking device. (C) An operation explanatory diagram of the same forking device.

[Explanation of symbols]

 20 Picking self-propelled carriage main body 21 First fork slide portion 22 Second fork slide portion 23 Fork lift portion 24 Pulley 25 Link plate 26 Load receiving guide plate 27 Load receiving roller 28 Wire 29 Tension spring

Claims (1)

[Claims] 1. A pair of elongate load receiving guide plates having a predetermined width, which are provided on both sides of the bottom surface of each storage shelf for storing articles to be transferred, and the articles to be transferred are transferred and moved. Self-propelled carriage, a first fork slide portion configured to be horizontally slidable on the upper portion of the self-propelled carriage, and sliding of the first fork slide portion on the upper portion of the first fork slide portion. A second fork slide portion configured to be slidable in the same direction, and an article to be transferred is transferred on an upper portion of the second fork slide portion and parallel to the second fork slide portion. And a forklift portion configured to be vertically movable, and provided on both side surfaces of the second fork slide portion so that the second fork slide portion is movable on the load receiving guide plate by rotation thereof. And a forklift part provided on the self-propelled carriage for horizontal movement of the wire, one end of which is connected to a wire at a lower part of the forklift part, the transfer arm being configured to include a load receiving roller. A vertical movement means for vertically moving the second fork slide portion via a wire connected to the link mechanism provided on the self-propelled carriage, and a self-propelled mechanism. A forking device for a transferred article, which comprises a horizontal drive means for horizontally moving the first fork slide portion and the second fork slide portion provided on a carriage.