JPS638006B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention can be conveniently utilized, for example, in a rotating shelf equipped with a large number of trays that can rotate in a horizontal circulation path, when containers are loaded and unloaded between the trays. It provides a container transfer device.

Hereinafter, one embodiment of the present invention will be explained based on the attached illustrative drawings. In Figs. The loading device includes a lifting platform 4 supported along a column 3 so as to be able to rise and fall freely, a chain 5 for driving the lifting platform 4 up and down, and a driving device for rotating the chain 5 via a drive gear 6. It includes a motor 7 and a turntable 8 provided on the lifting platform 4.

As shown in FIGS. 4 and 5, the turntable 8 is rotatably supported around a vertical shaft 10 that is concentric with a fixed toothed wheel 9 fixed on the lifting platform 4.
A chain 13 is hooked between the fixed gear wheel 9 and a drive gear wheel 12 driven by a rotation drive motor 11 fixed to one side of the turntable 8, and rotates the drive gear wheel 12. By moving the
A turntable 8 equipped with this drive gear 12 and a motor 11 is rotated about a vertical shaft 10. Reference numerals 14a and 14b are stoppers attached to the turntable 8, and as shown in FIG. The rotation of the turntable 8 is restricted within a range of 180° until it comes into contact. Reference numeral 15 denotes a movable stand provided on the turntable 8, which is movably supported by a guide rail 16 laid on the turntable 8 so as to pass directly above the vertical axis 10. It is attached via a support arm 18.

The movable base 15 includes a drive gear 20 driven by a movable base drive motor 19 fixedly mounted on the turntable 8 at a position substantially symmetrical to the rotation drive motor 11 with respect to the vertical axis 10, and a guide rail. Idling tooth ring 21 pivotally supported near both ends of 16,
The guide rail 16 is coupled to a chain 23 suspended between the guide rail 16 and the guide rail 16, and by rotating the chain 23 with a motor 19, it can be moved back and forth between both ends of the guide rail 16.

The container drawing and pushing tool 17 is a sixth
As shown in Figures to Figures 8, the retracting hook 24
pushers 25a placed on both the left and right sides of the
25b. The retracting hook 2
4 is attached to the entire surface of a connecting member 26 that connects the pushers 25a and 25b on both sides, and the connecting member 26 is movable in parallel to the moving direction of the movable base 15 on a support member 27 fixed to the support arm 18. The slide rod 28 is attached to the front end of the slide rod 28, which is supported by the slide rod 28. Moreover, both the pushers 25a,
Spring guide rods 29a and 29b extending rearward from 25b pass through protruding arms 30 protruding from the support member 27 on both left and right sides, and are connected between the protruding arms 30 and the connecting member 26 on both sides. Compression coil springs 31a, 31b are loosely fitted into the spring guide rods 29a, 29b, and the retraction hook 24 and both pushers 25a, 25
b is biased in the protruding direction. The pushers 25a and 25b project slightly further forward than the upwardly projecting portion 24a of the hook 24. 32 is a cover attached to the support member 24, and 33a and 33b are cushioning elastic bodies.

Reference numeral 34 denotes container supporting guide rails laid on the turntable 8 at both left and right sides of the guide rail 16 that guides the movable table 15;
Reference numeral 5 denotes a side guide rail for steadying the container, which slides on the container supporting guide rail 34. Reference numeral 36 denotes a lifting guide rail attached to both sides of the column 3, and a base 37 of the lifting platform 4 that sandwiches the column 3 has a lifting guide roller 38 that sandwiches the lifting guide rail 36 and a steady rest guide. A roller 39 is pivotally supported.

The containers 40 mounted on the horizontal circulation trays of each stage of the rotating shelf 2 are provided with a locked portion 42 on the end surface 41 thereof, into which the upwardly protruding portion 24a at the tip of the hook 24 can be loosely fitted from below. .

Next, to explain the unloading operation method, the rotary shelf 2 is driven to call the tray of the carousel 2 loaded with the container 40 to be unloaded to the loading/unloading position adjacent to the container transfer device 1, while the container transfer device 1
As shown by the imaginary line in FIG. 7, the lifting platform 4 is pulled in so that the hook 24 of the push-out tool 17 is located at the end surface 41 at a position below the locked part 42 of the container 40 to be delivered.
The drive motor 7 rotates the chain 5 and moves it up and down to a level facing the. At this time, the turntable 8 is oriented so that the stopper 14a contacts one side 4a of the lifting platform 4, as shown in FIG. 4, and the direction of the movable platform guide rail 16 is as follows.
This corresponds to the container transfer direction at the container loading/unloading position on the carousel 2. The container pulling and pushing tool 17 faces the container loading/unloading position.

In this state, when the movable base 15 is moved along the guide rail 16 to the forward limit position by rotating the chain 23 by the motor 19, the movable base 15
As shown by the imaginary lines in FIG. 7, before the movable table 15 reaches the forward limit position, both pushers 25a and 25b of the pull-in and push-out tool 17 come into contact with the end surface 41 of the container 40 below the locked part 42, and the movable base 15 Only the compression coil springs 31a and 31b are compressed while moving to the forward limit position. Next, when the elevator platform 4 is raised to the loading/unloading level shown by the solid line in Figure 7,
The upwardly protruding portion 24a of the hook 24 of the pull-in and push-out tool 17 automatically fits into the locked portion 42 of the container 40 from below. Thereafter, by rotating the chain 23 in the reverse direction and moving the movable table 15 backward, the hook 24 of the pull-in and push-out tool 17 and both stoppers 25 are moved back, as shown in FIG.
a, 25b protrude to the protrusion limit position, the tip upwardly protruding portion 24a of the hook 24 engages with the inner surface of the locked portion 42, and raises the container 40 on the tray of the rotating shelf 2 to a slightly higher height. Guide rail 3 for supporting the container of the turntable 8 located on the level
4 will be drawn upwards. At this time, the container 40 is guided by a pair of left and right side guide rails 35.

When the movable base 15 reaches the backward limit position shown in FIG.
3 is rotated by 180 degrees around the vertical axis 10, and stopped when the stopper 14b abuts the other side surface 4b of the lifting platform 4. On the other hand, as shown by the imaginary line in FIG.
is kept on standby, the lifting platform 4 is driven up and down by the chain 5, and the turntable 8 of the container transfer device 1 is paralleled to the container support platform 44 of the container transport vehicle 43 at approximately the same level. After this, the movable base 15 at the backward limit position is moved forward again by the chain 23, and the pusher 25 of the pulling and pushing tool 17 moves forward together.
a, 25b push the container 40 on the turntable 8 to the side opposite to the side where the rotating shelf 2 is located,
The container is transferred from the turntable 8 to the container support stand 44 of the container carrier 43. At this time, the pushers 25a, 25b and the hook 24 push out the container 40 against the support member 27 while being moved to the backward limit position against the springs 31a, 31b.

With the above steps, the container unloading work is completed, but conversely, the container 40 on the container carrier 43 is moved to the rotating rack 2.
When storing a container in a warehouse, the container transfer device 1 may be used in the reverse procedure to the above-mentioned unloading operation. Further, the rotation angle of the turntable 8 may be set according to the standby position of the container carrier 43, and is not limited to 180 degrees as in the embodiment. Furthermore, a container conveyor may be used instead of the container conveyor 43.

The container transfer device of the present invention can be implemented and used as in the above embodiment, and a movable body that can reciprocate in the diametrical direction is provided on a turntable that can be raised and lowered, and the movable body has the following features: A container pulling and pushing tool is provided, and a container guiding means (consisting of a container supporting guide rail 34 and a side guide rail 35 in the embodiment) for guiding the container drawn onto the turntable by the container pulling and pushing tool is provided. Since it is installed on a turntable, it is not possible to use a conventional transfer device of this type, that is, a device that allows the pull-in and push-out tool to be lowered below the container pull-in and push-out path, or a container transfer device separate from the pull-in and push-out tool. The structure is extremely simple and can be implemented at low cost compared to devices that include a conveyor. In addition, the container that has been pulled in can be pushed out in any direction by the rotation of the turntable by using the pulling and pushing tool used for pulling it in, and as in the embodiment, the container can be pushed out in any direction between the rotating shelf and the transport vehicle. It can be conveniently used as a transfer device.

Furthermore, according to a configuration unique to the present invention, the pulling/pushing tool includes a pulling hook that can be freely engaged with and detached from a locked part provided at an end of the container, and a pulling hook that protrudes beyond the hook. a pusher that abuts the end surface of the container on the side of the container, and supports the hook and the pusher so as to be movable back and forth within a certain range with respect to the movable body;
Since a spring is provided that urges the container to protrude forward, for example, even if there is variation in the position of the container supported on the rotating shelf side in the front-rear direction as in the example, or the end surface of the container is Even if the hook is inclined as shown, the hook can be reliably engaged with the locked portion of the container.

[Brief explanation of the drawing]

Fig. 1 is a side view, Fig. 2 is a front view, Fig. 3 is a plan view, Fig. 4 is an enlarged plan view of the main part, Fig. 5 is a front view of the same, and Fig. 6 is a cross-sectional plane of the pulling and pushing tool. Figures 7 and 8 are longitudinal sectional side views illustrating the action of the pull-in and push-out tool. 1...Container transfer device, 2...Rotary shelf, 3...
...Strut, 4... Lifting platform, 5... Lifting drive chain, 7... Lifting drive motor, 8... Turntable, 9... Fixed gear ring, 11... Turntable drive motor, 13... Chain for driving the turntable, 14a, 14b... Stopper for regulating the rotation range of the turntable, 15... Movable base, 16
...Movable platform guide rail, 17...Container pull-in/push tool, 19...Movable platform drive motor, 23...Movable platform drive chain, 24...Container pull-in hook, 25a, 25b...Container push-out pusher , 31a, 31b...
Compression coil spring, 34... Container support guide rail, 35... Side guide rail, 4
0... Container, 41... Container end surface, 42...
...Locked part, 43... Container transport trolley, 44...
...Container support stand.

Claims (1)

[Claims] 1. A movable body that can reciprocate in the diametrical direction is provided on a turntable that can be raised and lowered, and the movable body has a
A container transfer device comprising a container pulling and pushing tool, and a container guiding means on the turntable for guiding the container that is pulled onto the turntable by the drawing and pushing tool, the container transfer device comprising: teeth,
A retraction hook that can be freely engaged and detached from a locked part provided at an end of the container, and a pusher that protrudes beyond the hook and comes into contact with the end surface of the container beside the locked part, and the hook and A pusher is a container transfer device that supports the movable body so that it can move back and forth within a certain range, and is equipped with a spring that biases the movable body to project forward.