JPH08295404A - Moving rack equipment - Google Patents

Abstract

PURPOSE: To obtain safe and smooth traveling by attaching a collision board, which is supported by a supporting member in a rockable manner in the longitudinal direction and which is linked with a stop-signal generating means, to a lower side of fore and after parts of a traveling rack. CONSTITUTION: Collision boards 11, which are long in the lateral direction, are attached to a lower side of fore and after parts of each rack device. The collision board 11 is supported by a supporting member 13, which is attached to a frame 12 at the fore and after lower end of the rack device. A limit switch 14 as a stop signal generating means is attached to the supporting member 13. When an actuator 15 linked with the limit switch 14 is oscillated upward, or when a person or an article carrier, which entered a passage, is collided with the collision board 11, the outside of the collision board 11 is pushed down, while the inside comes up. As a result, the actuator 15 oscillates upward, owing to the restoring action. Thus, the action of the limit switch 14 generates a stop signal, so that the rack device while traveling is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving rack device having an article storage rack.

[0002]

2. Description of the Related Art Conventionally, at least three rack devices having a plurality of stages of article storage shelves are arranged in the front-rear direction so as to form at least one passage for walking or traveling of an article carrier, The rack device is designed so that it can be moved back and forth so that the position of the aisle can be changed.A passage is formed on the side of the loading / unloading side of the article storage rack of the rack device for storing articles, and a person carrying an item enters the passage. Or
Or, it is known that an article transporting vehicle on which an article is placed can be put in to store the article in a predetermined article storage shelf, and the article can be carried out from the article storage shelf by the reverse operation. ing.

Further, in this article storage device, an intermediate rack device is moved so that a passage is formed only at a place necessary to store and carry out an article, while a rack device which does not store and carry out an article is provided. There is also an advantage that the space can be effectively used by making the spaces close to each other.

[0004]

In the conventional article storage device, since the rack device moves on the rails laid on the floor surface, if a person or an article carrier is in the passage. However, if the rack device moves, it is extremely dangerous.

An object of the present invention is to solve the problems of the conventional moving rack device as described above, to have a structure that enables safe and smooth traveling in the moving rack device, and is easy to assemble. Another object of the present invention is to provide a moving rack device having an emergency stop mechanism with a simple structure.

[0006]

In order to solve the above problems, a movable rack apparatus according to the present invention has a plurality of rack apparatuses arranged in parallel, and at least an intermediate rack apparatus is movable in the parallel direction. The front and rear lower parts are provided with a collision plate which is swingably supported by a support member and which is interlocked with a stop signal generating means.

The collision plate is normally urged to the inoperative position of the stop signal generating means, and is rocked so that the stop signal generating means operates when an external force is applied to the collision plate. Further, the supporting member is attached to the lower end frame of the rack device, and the collision plate is supported from below by a supporting piece projecting from a side portion of the supporting member.

The collision plate is formed by bending a metal plate material, has a large weight on the side of the stop signal generating means, and normally maintains the stop signal generating means in an inoperative state by its own weight. It is a thing.

[0009]

In the movable rack device constructed as described above, since the collision plate is swingably provided so as to interlock with the stop signal generating means, the stop signal generating means causes the stop signal generating means to move by the movement of the collision plate. Occurs and the moving rack device stops.

Moreover, since the stop signal generating means is normally biased to the non-operating position of the collision plate, the stop signal generating means is activated when an external force exceeding the biasing force is applied. Further, the collision plate swings back and forth around a supporting piece projecting from the side portion of the supporting member as a fulcrum.

Further, since the collision plate has a large weight on the side of the stop signal generating means, the stop signal generating means is operated when an external force exceeding this weight is applied.

Examples of the present invention will be described below, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

[0013]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In this specification, the front means the lower side of FIG. 1, the rear means the upper side of FIG. 1, the left means the left side of FIG. 1, and the right means the right side of FIG.

At least two rail grooves 1 are formed in parallel on the floor surface along the front-rear direction, and guide rails 2 are laid on the bottom surfaces of these rail grooves 1 so as not to project from the floor surface. At least one rack device 4 (having a drive device not shown) is mounted on these guide rails 2 so as to be movable back and forth. Further, a fixed rack device 5 is erected on the floor surface in front of the front end of the guide rail 2 and behind the rear end of the guide rail 2.

It goes without saying that the front and rear fixed rack devices 5 may be placed on the guide rails 2 so as to be movable back and forth.

At least one passage 9 is formed between the rack devices 4 for walking or traveling of the article transport vehicle. That is, by moving the rack device 4, a passage 9 is formed between two rack devices 4 adjacent to each other or between the fixed rack device 5.

The rack device 4 and the rack device 5 are provided with a plurality of horizontal article storage shelves 7. Further, a loading / unloading port 8 is formed in the front and rear portions of the article storage rack 7 of the rack device 4, and a loading / unloading port 8 is also formed in the front and back portions of the article storage rack 7 of the front or rear rack device 5. Also,
In the lower part of the front and rear of the rack device 4 and the rack device 5, a required number of cushioning materials 10 made of an elastic material are provided at predetermined intervals in the left-right direction.

Collision plates 11 that are long in the left-right direction are provided below the front and rear portions of each rack device 4. The collision plate 11 is
It is supported by a support member 13 attached to the front and rear lower end frames 12 of the rack device 4. More specifically, the collision plate 11 is a support piece projecting from a side portion of the support member 13.
It is supported from below by 13a and is swingably supported in the X direction as shown in FIG.

These collision plates 11 are formed by bending a metal plate material, and at the bent portion bent in an inverted V shape, the support plate 13a of the support member 13 swings back and forth around the support plate 13a as a fulcrum. It is supported freely. One of the bent pieces is exposed on the front and rear surfaces of the rack device, and the other is located inside the support member 13. The inner side is double folded and made heavier than the outer side, and the weight difference between the inner side and the outer side causes the inner side to sink and the outer side to rise.

On the other hand, a limit switch 14 as a stop signal generating means is attached to the support member 13 so that the operator 15 can swing up and down (Y direction in FIG. 4) and is biased upward. There is. The inner part of the collision plate 11 is arranged so as to ride on the operator 15, and the operator 15 is maintained in the non-actuated position (the position where the stop signal is not generated) by the gravity of the inner part.

Needless to say, a spring may be used instead of the collision plate 11 as a means for constantly urging the stop signal generating means to the inoperative position.

The limit switch 14 is operated when the operator 15 is swung upward in the direction of the arrow Y, that is, when a person or an article carrier entering the passage 9 hits the collision plate 11. The outer portion is pushed down and the inner portion is lifted up, and accordingly, the actuator 15 swings upward due to its restoring action. As a result, the limit switch 14 operates to generate a stop signal, and the rack device 4 moving is stopped.

The supporting member 13 of the collision plate 11 is formed by bending a U-shaped metal plate material, and a supporting piece 13a is provided on one side of the supporting member 13. Further, a mounting hole 13c is formed on the upper surface of the support member 13 and is attached to the lower end frame 12 by a bolt 13d.

Further, the lower upper surface portion 13b of the supporting member 13 is made to hit the double-folded tip end portion 11a of the collision plate 11 so that the limit switch 14 is not subjected to unnecessary gravity. ing.

Further, rectangular opening portions 11b having a length including the supporting piece 13a of the supporting member 13 are provided on the same line as the swing fulcrum portion of the collision plate 11 at right and left at predetermined intervals, and the opening portions are formed. 11
The support members 13 are inserted into the left and right sides from above in b.

A support piece 13a of the support member 13 is on the right side in the opening 11b on the right side of the collision plate 11, and a support piece 13 of the support member 13 is on the left side opening 11b of the collision plate 11. 13a
Are located on the left side, and the support pieces 13a are arranged so as to enter under the collision plate 11, respectively, so that the collision plate 11 does not shift to the left and right, and swings. Are attached to the front and rear lower end frames 12 of the rack device 4 with bolts 13d. The support members 13 that support the collision plate 11 on the left and right sides are symmetrical with each other.

It should be noted that the collision plates 11 facing each other or the collision plates 11 facing each other in the state where the adjacent cushioning members 10 are in contact with each other.
The protruding length of the cushioning material 10 is adjusted so that the rack 11 and the rack device 5 do not come into contact with each other.

[0028]

Since the present invention is configured as described above, it has the following effects. During normal traveling, when a person or an article transport vehicle hits the collision plate in a state away from the rack device, the rack device is brought to an emergency stop by the operation of the stop signal generating means accompanying the swing of the collision plate. Accidents can be prevented in advance. Further, the structure for attaching the collision plate is simple and the assembling time can be reduced.

[Brief description of drawings]

FIG. 1 is a simplified plan view showing an embodiment of the present invention.

FIG. 2 is a simplified side view taken along the line II-II in FIG.

3 is a simplified enlarged side view taken along the arrow III in FIG.

FIG. 4 is an enlarged cross-sectional view of a portion A of FIG.

5 is a schematic perspective view of a collision plate 11 and a support member 13. FIG.

[Explanation of symbols]

2 ... Guide rail 4 ... Rack device 5 ... Rack device 9 ... Passage 11 ... Collision plate 13 ........ Supporting member 13a ........ Supporting member support 14 ........ Limit switch (stop signal generating means)

Claims (4)

[Claims] 1. A plurality of rack devices are arranged side by side, at least an intermediate rack device is movable in a parallel direction, and the movable rack device is supported by a supporting member at a front and rear lower side portion so as to be swingable back and forth. A movable rack device, characterized in that a collision plate interlocked with the stop signal generating means is provided. 2. The collision plate is oscillated so that the stop signal generating means is normally urged to a position in which the stop signal generating means is inoperative and the stop signal generating means is activated when an external force is applied to the collision plate. The moving rack device according to Item 1. 3. The support member is attached to a lower end frame of a rack device, and supports the collision plate from below by a support piece projecting from a side portion of the support member. 2. The moving rack device described in 2. 4. The collision plate is formed by bending a metal plate material, and the weight of the stop signal generating means is large so that the stop signal generating means is inactivated by its own weight at all times. The moving rack device according to any one of claims 1 to 3, which is to be maintained.