JPH0364404B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a shelf in which stoppers for preventing loads from falling are arranged in parallel for each cargo storage compartment, and the stoppers belonging to the cargo storage compartment to be loaded and unloaded from the warehouse in an exit position. This invention relates to an automated warehouse consisting of a traveling crane for loading and unloading, which is equipped with an operating tool for switching to the warehouse.

(Prior art and its problems) As an automatic warehouse equipped with this type of shelf with stoppers, for example, there are
As described in Publication No. 59-172309, a load drop prevention stopper is pivotally attached to the bottom of each load storage compartment so as to be able to swing vertically, and an operating tool provided on the crane side is attached to the bottom of the load storage compartment. The stopper is configured to be advanced toward the side in the loading/unloading direction and press the operated portion of the stopper with the operating tool, thereby swinging the stopper downward against a spring to switch from the working position to the withdrawing position. What has been done is known.

In such a conventional structure, it is necessary to secure a space below each cargo storage compartment for the stopper to swing downward and for the crane to enter. Further, as a crane-side operating tool for pressing and swinging the vertical swing stopper downward as described above, for example, as shown in the above-mentioned known example, the operated part protruding downward from the stopper can be moved to the back of the shelf. There is a need for an operating tool that can move in and out linearly to press in the direction of the stopper, or a vertically swinging operating tool that swings downward in the same way as the stopper and directly presses the operated portion of the stopper downward. When using the linearly movable operating tool, if the swing radius of the operated part is increased in order to reduce the operating force required to move the stopper out, the lower side of the storage compartment Requires large space. Furthermore, when using a vertically swingable operating tool, a space is required below the cargo storage compartment for the operating tool to swing.

As mentioned above, in the conventional configuration, a large space is required under each load storage compartment for both the stopper on the shelf side and the operation tool on the crane side. The disadvantage was that the shelves were higher than those without.

Furthermore, with the conventional operating tool that advances in the loading/unloading direction and moves to the bottom of the cargo storage compartment to operate the stopper, it is difficult to operate the stopper beyond the safe distance between the crane and the cargo storage compartment when the crane is traveling. It is necessary to advance the tool to the lower side of the storage compartment, which increases the forward and backward movement stroke of the operating tool, and requires a large actuator or a link mechanism that doubles the stroke, which also has the disadvantage of increasing costs. Ta.

(Means and effects for solving the problems) The present invention proposes an automatic warehouse equipped with shelves with stoppers that can solve the above-mentioned conventional problems, and its features include the above-mentioned stoppers. The stopper is pivoted so as to be swingable in left and right directions by a horizontal support shaft parallel to the loading/unloading direction located in front of the shelf support and at a higher position than the load receiving surface of the load storage compartment. and an operated part located in the vertical direction of the support shaft and in front of the shelf support, and the crane-side operating tool includes:
The stopper is configured to move in a direction parallel to the traveling direction of the crane and press the operated portion of the stopper in a horizontal and lateral direction against a spring.

According to such a configuration of the present invention, by horizontally moving the operating tool while the crane is stopped in a state corresponding to the load storage section to be loaded and unloaded, the load drop prevention stopper corresponding to the operating tool is moved. The operated part of the stopper is pressed and moved in the horizontal and lateral directions, and the stopper is swung from the operating position in which it protrudes into the cargo storage compartment to the left and right sides against the spring and is switched to the exit position. It becomes possible to load and unload cargo into and out of the compartment.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In Figures 1 and 2, 1 is a shelf, 2 is a shelf 1
This is a traveling crane for loading and unloading warehouses that travels along the road.
A large number of cargo storage sections 3 are three-dimensionally formed on the shelf 1, and stoppers 4 for preventing cargo from falling are arranged in parallel in each cargo storage section 3. The crane 2 travels guided by upper and lower guide rails 5 and 6, and has a carriage 8 that can be raised and lowered along a support 7.
A load transfer means (not shown) for transferring loads to and from the load storage section 3 of the shelf 1 is provided above.

As shown in FIG. 6, each cargo storage compartment 3 includes:
A pair of left and right load receiving members 10a and 10b supported by pillars 9 erected on both the left and right sides are provided, and the load fall prevention stopper 4 is supported at the front end of the load receiving member 10a on one side. That is, as shown in FIGS. 3 to 5, the stopper supporting bracket 11 fixed to the lower front end of the load receiving member 10a has an extending portion 11a extending vertically upward on the front side of the adjacent column 9. The upper end of the stopper 4 swings in the left-right and lateral directions (traveling direction of the crane 2) via a horizontal support shaft 12 parallel to the loading/unloading direction of the cargo storage section 3 at the upper end of the upwardly extending portion 11a. An operated portion 13 is provided which is freely pivotable and extends from the stopper 4 directly below the support shaft 12.

The bracket 11 includes the upwardly extending portion 11.
An extending portion 11b is bent and connected to the front from a, and a pin 14 that can come into contact with the front extending portion 11b is provided protruding from the stopper 4, and this pin 14 comes into contact with the front extending portion 11b. A torsion coil spring 15, which biases and holds the stopper 4 in the working position in which the stopper 4 protrudes to a corner inside the cargo storage compartment 3, uses the spindle 12 to rotate forwardly with the stopper 4. It is interposed between the projecting portion 11b and the projecting portion 11b.

As shown in FIGS. 5 and 6, when the elevating carriage 8 of the loading/unloading traveling crane 2 corresponds to the loading/unloading compartment 3, the loading/unloading crane 2 is equipped with a cargo storage compartment 3. The carriage 8 is
An operating tool 16 is provided within the corner. The operating tool 16 is horizontally swingably supported by a vertical support shaft 17, and an operating roller 19 is supported at the tip via a horizontal support shaft 18. Further, the eccentric position of the rotary disk 23, which is interlocked with the drive motor 20 via chain transmission means 21 and 22, and the eccentric position of the operating tool 16 are interlocked and connected by a link 24.

In addition, when the shelves 1 are installed on both sides of the travel path of the crane 2, operating tools 16 are arranged on the left and right sides of the elevating carriage 8, as shown by the imaginary lines in FIG. Link both operating tools 16 2
4 may be used for interlocking connection. Reference numeral 25 denotes a load (case) to be stored in the load storage compartment 3, and a locked portion 26 is provided at the front end of the load. The load (case) 25 is engaged and pulled out from inside the load storage compartment 3 onto the carriage 8, or the load (case) 25 is
is pushed into the cargo storage compartment 3 from above the carriage 8.

When the crane 2 is moved for loading and unloading work and the carriage 8 is raised and lowered, and the carriage 8 is stopped at a position corresponding to the load storage section 3 to be loaded and unloaded, the motor 20 moves the rotary plate 2
3 clockwise at a certain angle from the state shown in FIG. Protrude and swing in the horizontal direction. As a result, the operated part 13 of the stopper 4 installed in the cargo storage compartment 3 to be loaded and unloaded is pressed horizontally and laterally by the operating roller 19 of the operating tool 16, and the stopper 4 moves around the support shaft 12. It is caused to swing in the horizontal and lateral directions against the spring 15. Therefore, the stopper 4 is switched from the working position shown by the solid line in FIG.
It is possible to put in and take out.

When the loading/unloading operation is completed, the rotary plate 23 is reversed by the motor 20, and the operating tool 16 is swung back to its original standby position via the link 24. 14 automatically returns to the working position in which the front extending portion 11b of the bracket 11 is in contact with the load (case) 25 when the load (case) 25 is stored in the load storage compartment 3. This will prevent the crane from sliding from the inside toward the crane travel path.

(Effects of the Invention) As described above, according to the automatic warehouse equipped with the shelves with stoppers of the present invention, the stoppers that prevent loads from sliding from the load storage compartments have a movement space and a space for switching from the working position to the retracting position. Since there is no need to secure a space below the load storage compartment for the operating tools on the crane side to move from the standby position to the operating position, the space between the upper and lower load storage compartments can be minimized and the shelves can be The height can be kept low.

In addition, even if the operated part of the stopper extends sufficiently long from the spindle to increase its swing radius, there is no need to expand the space under the load storage compartment, so in this way, the operating tool on the crane side can be The operating force can be reduced. In other words, even if the spring that biases and holds the stopper in the working position is strengthened so that the stopper is strongly held in the working position, the position of the stopper can be reliably switched with a small force by the operating tool. It can be configured as follows.

Furthermore, according to the present invention, the operating tools required on the crane side are moved to the lower side of the cargo storage compartment beyond the space for safe crane movement that is secured between the cargo storage compartment (shelf) and the crane. Therefore, even if it is assumed that the stroke of the operating tool required to operate the operated part on the stopper side is the same as the conventional one, the distance between the cargo storage compartment (shelf) and the crane is Since there is no need for a stroke to cross the space between the cranes for safe running, the stroke required for the operating tool on the crane side becomes smaller, and the actuator can be constructed at low cost with a small actuator.

[Brief explanation of drawings]

Fig. 1 is a schematic side view showing the whole, Fig. 2 is a schematic plan view thereof, Fig. 3 is a front view of the main part showing the stopper, Fig. 4 is the same side view, and Fig. 5 is a diagram showing the stopper and the operating tool. FIG. 6 is a cross-sectional plan view showing the carriage on the crane side and part of the load storage compartment on the shelf side. 1... Shelf, 2... Traveling crane for loading and unloading, 3...
... Load storage compartment, 4... Stopper to prevent cargo from falling, 8
... Lifting carriage, 9 ... Shelf support, 10a, 1
0b...Receiving material, 11...Bracket, 12...
...Horizontal support shaft, 13...Operated part, 14...Pin,
15... Torsional coil spring, 16... Operating tool, 17... Vertical support shaft, 19... Operating roller,
20... Drive motor, 21, 22... Chain transmission means, 23... Turntable, 24... Link, 25
...Cargo (case).

Claims (1)

[Claims] 1. An automated warehouse consisting of shelves with stoppers to prevent loads from falling in each storage compartment, and a traveling crane for loading and unloading equipped with an operating tool for switching the stopper belonging to the storage compartment to be loaded and unloaded to an exit position. In this case, each stopper is swingable in the left and right directions by a horizontal support shaft parallel to the loading/unloading direction, which is located in front of the shelf support and at a higher position than the load receiving surface of the load storage compartment. Along with pivoting,
An operated part located in the vertical direction of the support shaft and in front of the shelf support is connected from the stopper, and the operating tool on the crane side moves in a direction parallel to the traveling direction of the crane to An automatic warehouse equipped with a shelf with a stopper configured to move the operated part of the stopper in a horizontal and lateral direction against a spring.