JPH0717242B2 - Transport device using pallets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a carrier device using a pallet (carriage-like object).

[Prior Art] Conventionally, a plane-operated parking lot has been known as a mechanical parking system. In this method, a car is placed on a pallet installed on the floor, and the pallet is moved back and forth or left and right using rails and grooves. Move back and forth or left and right to carry to an empty pallet space.

Therefore, it is possible to use a narrow space where the automobile cannot bend by itself due to its function as a parking space, and it is possible to improve the parking efficiency.

The pallet used in such a plane-operated mechanical parking lot has drive wheels protruding from the floor, and is supported and moved by the drive wheels. With the movement of the pallet, the pallet support position changes and the pallet becomes unstable. Becomes

Therefore, in the conventional technique, when moving in only one direction, the pallet is stabilized by arranging a large number of drive wheels or support rollers adjacent to each other in the moving direction. However, when moving in both the vertical and horizontal directions, a complicated structure is used, in which the drive wheels facing the direction perpendicular to the moving direction are lowered by an elevating device or the like so as to float (Japanese Patent Laid-Open No. Sho 60).
-93006, see Fig. 6), or forcefully slide on the drive wheels facing at a right angle.

When sliding on a drive wheel that is oriented at a right angle, the pallet may not come into close contact with the drive wheel, slipping and may not be able to move smoothly, and extra power is required.

[Means for Solving Problems] The present invention was created in order to solve these problems of the prior art, and enables a plurality of transfer pallets to be vertically and horizontally movable on a floor surface. In the installed transport device,
Rails are projected on the back surface of each pallet in a grid pattern, and short rails formed in only one direction are rotatably projected at the intersections of the rails. A wheel that can be connected to any of the wheels and that can be vertically / horizontally converted so as to project on the floor surface at a position corresponding to the short rail is provided, and the plurality of transfer pallets are at predetermined stop positions. Another object of the present invention is to provide a carrier device using a pallet, in which a stationary support roller having a slight gap from the pallet is provided in an intermediate portion between the adjacent pallets.

[Operation] When an object to be conveyed is placed on a pallet for conveyance and the pallet is conveyed to a predetermined pallet space, wheels capable of vertical / horizontal direction conversion are turned to a predetermined pallet space direction, and then drive wheels are moved. When driven, the pallet can be stably carried to the predetermined pallet space by riding on the drive wheels and the support rollers.

[Embodiment] The configuration of the present invention will be described in detail based on an embodiment shown in the accompanying drawings. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a main part view of FIG. 1, FIG. 3 is a side sectional view of a main part of FIG. 1, and FIG.
FIG. 5 is a sectional view taken along the line BB of FIG. 3, FIG. 5 is a sectional view taken along the line CC of FIG. 3, FIG. 6 is a sectional view taken along the line AA of FIG. 1, and FIG. A perspective view is shown.

This embodiment shows a plane-operated mechanical parking lot, and particularly shows a case where the pallet space (3) is at least one more than the number of pallets (1). These pallets (1) are arranged vertically and horizontally on the floor, and each pallet (1)
Rails (2) are vertically and horizontally projected on the back of the
A disc (4) is rotatably attached to each intersection of these rails (2), and a short rail (5) is provided on the lower surface of the disc (4) so as to project therefrom.

In this embodiment, four driving devices (6) are provided in the pallet space (3) on the floor surface, and the disk (4) of the pallet (1) is provided.
Are installed side by side in a position corresponding to. The drive device (6) is provided on a disc (7) rotatably mounted on the floor surface, is connected to a motor (8), and has drive wheels (9) protruding above the floor surface. Guide rollers (10), (1
0). It is not always necessary to install four drive devices (6) for each pallet space (3), and only one drive device (6) may be provided as long as the driving force necessary for moving the pallet (1) can be obtained. In this case, the wheels where the drive device is not provided are driven wheels that are rotatably supported.

When the rails (2) or short rails (5) of the pallet (1) move on the driving wheels (9) or the driven wheels, the guide rollers (10) are attached to the side surfaces of these rails (2), (5). Contact and guide the direction of the pallet (1).

Two arms (11) and (11) are provided on the disk (7) so as to project, and a rod (12) is pivotally attached to the tip of these arms (11) by a pin so that the rods (12) are connected to each other. It is connected.
A cylinder (13) driven electrically or hydraulically is pivotally attached to one of the arms (11) of the disk (7), and the disk (7) rotates when the cylinder (13) expands and contracts. It is designed to move.

The support roller (14) is located between the adjacent pallets (1) when each pallet (1) is at a predetermined stop position, and the rollers (14) rotate in vertical and horizontal rails (2). It is installed on the floor according to the direction of.

The drive wheel (9) or the driven wheel and the support roller (1
The mutual gaps of 4) are arranged so that they are approximately equal in the vertical and horizontal directions. And the support roller (1
The height of the tread of 4) is the same as the tread of the drive wheel (9), and when the pallet (1) is in a stationary position in a predetermined state, the rail (2) of the pallet (1) is And the support rollers (14) with a slight gap (15).

Since this embodiment has the above structure, it has the following operation. By expanding and contracting and operating the cylinder (13), the floor disk (7) connected to it rotates,
At the same time, the other three discs (7) connected by the rod (12) also rotate.

Therefore, when the disc (4) of the pallet (1) is on the drive device (6), when the disc (7) on the floor is rotated,
The guide roller (10) rotates the disc (4) of the pallet (1) via the short rail (5). Therefore, when moving the pallet (1) to the right side, for example, the drive device (6) on the floor surface of the pallet (1) and the drive device (6) of the empty pallet space (3) on the right side. The cylinder (13) is operated so that the drive wheel (9) is in a horizontal direction, and then the drive wheel (9) is driven by the drive device (6) to move the pallet (1) to the right side.
Similarly, when moving vertically back, the drive device (6) on the floor surface of the moved pallet (1) and the drive wheels of the drive device (6) in the empty pallet space (3) vertically behind. Operate the cylinder (13) so that (9) is oriented vertically. Such an operation is performed by a computer according to a well-known game theory, and the pallet is moved to a target location along the shortest path.

Here, when moving the pallet (1) horizontally,
When the pallet (1) moves by the gap (15) with the support roller (14), the support roller (14) together with the drive wheel (9)
Also supports the pallet (1), stabilizes the pallet (1),
Further, the pallet (1) is moved to a position immediately before the predetermined position in the vacant pallet space (3) adjacent to the pallet (1), and the pallet (1) is smoothly moved. At this time, the support roller (14) in the front-back direction of the pallet (1) has a slight gap (15) between it and the pallet (1), so that the tread surface of these support rollers (14) is kept. The pallet (1) does not slip.
The same applies when moving in the vertical direction. And
The position of the center of gravity when the car is mounted on the pallet (1)
The pallet (1) can always move stably if it is centered more than the length between the end of the pallet position and the drive wheels (9) and between the drive wheels (9) and the support roller (14). .

Although the present embodiment is a plane-operated mechanical parking lot, the present invention is not limited to this, and may be a multi-layered mechanical parking lot. Furthermore, by mounting and fixing a crane on a pallet, a public wharf can be used. It can also be applied to an orthogonal movement device of a crane or a transportation device such as a warehouse.

[Advantages of the Invention] According to the present invention, unlike the prior art, it is not necessary to lower the drive wheels that are oriented in the direction perpendicular to the moving direction of the pallet by an elevating device or the like, and it is not necessary to forcefully slide them. . Moreover, no extra power is required, and smooth and stable movement is possible.

In particular, since the support rollers in the vertical and horizontal directions are provided for one drive wheel in the intermediate position between the adjacent pallets and in a position where they do not come into contact with the stationary pallet in a predetermined state, the vertical and horizontal support rollers are provided. The pallet can be moved stably in either direction.

[Brief description of drawings]

1 is a plan view of an embodiment of the present invention, FIG. 2 is a main part view of FIG. 1, FIG. 3 is a side sectional view of a main part of FIG. 1, and FIG. 4 is B-B of FIG. FIG. 6 is a sectional view, FIG. 5 is a view taken along the line CC of FIG.
The drawing is a sectional view taken along line AA of FIG. 1, and FIG. 7 is a view taken in the direction of arrow of FIG. (1) …… Pallet (3) …… Pallet space (9) …… Drive wheel (14) …… Support roller

Claims (1)

[Claims] 1. A transfer device in which a plurality of transfer pallets are installed on the floor so as to be movable in the vertical and horizontal directions, rails projecting in a grid pattern on the back surface of each pallet, and each crossing portion of the rails. , A short rail formed in only one direction is rotatably projected, and the short rail can be connected to either the vertical or horizontal rail of the rail, and on the floor surface at a position corresponding to the short rail. A stationary support roller is provided which is provided with a vertically and laterally convertible wheel projecting from the pallet and has a slight gap between the pallet and an adjacent pallet when the plurality of transport pallets are at predetermined stop positions. Conveyor device that uses a pallet.