JP2785537B2 - Transfer device with hanging lifting and lowering transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device in which a transfer device is suspended from a self-propelled transfer train guided by a guide rail so as to be able to move up and down. The present invention relates to a transport device of a type that is used by being suspended from a loading level.

[0002]

2. Description of the Related Art In a conventional transfer apparatus of the type described above, when a transfer apparatus is suspended in a transfer path between shelves, the transfer apparatus may collide with the shelves or the transfer apparatus may move between the shelves. In order to prevent unjust contact with the shelf side when moving up and down the loading passage, for example, as disclosed in Japanese Patent Application Laid-Open No. 60-40304, a guide roller is pivotally supported on the transfer device side,
Guide rails on which the guide rollers are fitted vertically so as to be able to move up and down are provided vertically on the shelf side. However, in such a conventional configuration, guide rails and the like must be provided also on the shelf side, so that existing rails are provided. Not only can the shelf not be used as it is, but also when an excessive external force acts on the transfer device during load transfer, stress concentration occurs on the bearings of the guide rollers that fit into the guide rails on the shelf side. The guide roller may be easily damaged.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are indicated by reference numerals in the embodiments described later. The transfer device with a hanging lifting / lowering transfer device of the present invention is a transfer device in which the transfer device 5 is suspended so as to be able to move up and down from a self-propelled transfer train 1 guided by guide rails 2. The device 5 has a lifting guide frame 1 on both front and rear sides thereof.
1A and 11B are attached to each of the lifting guide frames 11
A and 11B are a pair of left and right vertical guides 17 slightly projecting from both right and left sides of the transfer device 5 and a horizontal connecting portion 16 connecting lower ends of the two vertical guides 17 at a position below the lower end of the transfer device 5. A slanting guide which is inclined inward between the lower ends of the vertical guide portions 17 and the horizontal connecting portion 16. The two vertical guide portions 1 are provided with a portion 16a.
7 is set to be appropriately smaller than the width D1 of the transfer passage 20 between the shelves 19A and 19B on which the transfer device 5 is suspended.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a transport train, and a guide installed at a predetermined height above the floor surface. A drive wheel 3 fitted to the rail 2, a guide roller for swaying the guide rail 2 (not shown), and a drive motor 4 for driving the drive wheel 3 to rotate in any desired direction are provided. I have.

Reference numeral 5 denotes a transfer device, which is an upper frame 6
A lower frame 8 suspended from the upper frame 6 via a plurality of suspension columns 7, and a pair of belt conveyors 9a for supporting the load W on the lower frame 8 and transporting the load W in the horizontal direction. 9b, the steadying means 10A and 10B provided at the left and right ends of the lower frame 8, and the elevating guide frames 11A provided at the outer front and rear ends of the lower frame 8. 11
B.

The transfer device 5 is suspended from the transport train 1 via suspension elevating means 13 having four front, rear, left and right suspension belts 12 connected to the upper frame 6. . The suspension elevating means 13 comprises a drum 14 for winding and unwinding the four suspension belts 12, and an elevating drive motor 15 for rotating the drum 14 in any direction. Even if the transport train 1 runs up and down on the vertically inclined path, the transfer device 5 can be hung to be able to swing back and forth below the transport train 1 so that the transfer device 5 can maintain a horizontal posture. In the illustrated example, since there is no such a vertically inclined path portion in the traveling route of the transport train 1, the suspension elevating means 13 is provided inside the frame of the transport train 1.

The lifting guide frames 11A, 11B
Have the same shape as each other in the shape of a corner U when viewed from the traveling direction of the transport train 1, and the horizontal connecting portion 16 slightly lower than the lower frame 8 has its left and right ends obliquely. The vertical guide portion 17 has a diagonal guide portion 16a which is cut and inclined inward.
Is slightly inside (upper frame 6
The vertical guide portion 17 is connected to the suspension column 7 on the same side by a connecting member 18 to be attached to the transfer device 5.

FIG. 3 shows a use state of the transport train 1 constructed as described above, and the guide is located immediately above a transfer passage 20 between a pair of left and right shelves 19A and 19B installed on the floor. A rail 2 is installed. Each shelf 19A, 19B
It is provided with a plurality of upper and lower load support tables 21 using a free roller conveyor inclined at a right angle to the transfer path 20 so as to go away from the transfer path 20, and each shelf 19A, 19B. Are arranged at the same level. Reference numeral 22 denotes a side frame that supports the load support 21 of each stage. 4 and 5
As shown in the figure, the horizontal width of the transfer passage 20, that is, the distance D1 between the rear end surfaces of the transfer passages 20 on the load support tables 21 of the respective shelves 19A and 19B is determined by the transfer device 5 The horizontal width of the transfer device 5, that is, the vertical guide frames 11 </ b> A, 11 </ b> A, can be moved up and down in the transfer passage 20.
The distance between the outer side surfaces D2 of the right and left vertical guide portions 17 of B is set appropriately wider.

As shown in FIGS. 4 and 5, the anti-sway means 10A, 10B comprises a rotating shaft 22 horizontally supported by the lower frame 8 between both ends of the belt conveyors 9a, 9b.
A pair of arms 23 fixedly provided at both ends of the rotary shaft 22, a steady rest 24 composed of a roller supported by a horizontal support shaft between the pair of arms 23, The driving mechanism 25 includes a gear 26 fixed to the rotating shaft 22 and a gear 27 with a reduction gear in which a gear 27 meshing with the gear 26 is attached to the output shaft. 28.

Accordingly, the motor 28 is operated to rotate the rotating shaft 22 in the normal and reverse directions, whereby the steady rest (roller) 24 is rotated around the rotating shaft 22 via the pair of arms 23. 5 can be switched between the stopper action posture shown by the solid line and the steadying action posture shown by the imaginary line. In the stopper operation posture, the steady rest 24 is moved by the load transfer means 9 (the belt conveyor 9).
a, 9b) projecting above the load support level, and in the steadying action position, the steady rest 24 is located below the load support level of the load transfer means 9 and laterally outside the lower frame 8. Protrude.

Although not shown, the rotating shaft 2
A rotation restricting stopper that allows only the forward / reverse rotation of the arm 2 (arm 23) within a range of 90 degrees is provided. 29 in the figure.
Reference numeral 30a, 30 denotes a motor with a speed reducer for rotating the pair of belt conveyors 9a, 9b in any desired direction.
b is a side guide protruding on both left and right sides of the load transfer means 9, and 31a and 31b are load supporting rollers arranged in parallel for each load supporting row in each stage load supporting table 21 of the shelves 19A and 19B. Reference numeral 32 denotes a rail, and a partition guide 32 is provided between the respective load support rows of each of the step load support tables 21 of the shelves 19A and 19B.

The method of using the transport device having the above configuration will be described. As shown in FIG. 3, shelves 19A, 19B
If there is a load support row of the load support table 21 in which the load W must be replenished in each of the step load support tables 21, the load transfer means 9 of the suspended transfer device 5 (a pair of left and right belts) The transport train 1 supporting the load W to be replenished on the conveyors 9a, 9b) runs along the guide rails 2 by itself and corresponds to the load support row of the load support table 21 where the load W must be replenished. Stop at the fixed position. When the transport train 1 travels, the transfer device 5 is lifted to the upper limit as shown by a virtual line in FIGS. 1 and 2 and a solid line in FIG.
In addition, steady rest means 10A at both ends of the load transfer means 9,
10B, as shown by the solid lines in FIGS. 1, 2, and 5,
The anti-sway device (roller 24) is switched to the stopper action posture, and both of the anti-sway devices (roller 2).
4) functions as a drop stopper for the load W on the load transfer means 9.

When the transport train 1 is stopped at a fixed position, the transfer device 5 is lowered by pulling out the suspension belt 12 of the suspension elevating means 13 as shown in FIGS. As shown by the imaginary line in FIG. 3, it is suspended in the transfer passage 20 between both shelves 19A and 19B. At this time, the elevating guide frames 11A provided at both front and rear ends of the transfer device 5,
11B places the transfer device 5 between the rear end surfaces of the respective load carriers 21 on both shelves 19A and 19B, that is, in the transfer passage 20, the inward oblique guide portions 1 at both ends of the horizontal connecting portion 16.
While being guided by 6a, the vertical transfer portion 17 on both sides prevents the descending transfer device 5 from swinging largely in the left-right and lateral directions.

The load support 2 for replenishing the load W
When the load transfer means 9 of the transfer device 5 is lowered to a level adjacent to one load support row, the feeding of the suspension belt 12 is stopped, and the transfer device 5 is stopped at a constant level.
In such a state, first, the arm 23 is rotated 90 degrees outward by the motor 27 of the driving means 25 so that the steady rests (rollers) 24 of the left and right steady rest means 10A and 10B are moved from the stopper action posture to FIG. Is switched to the steadying action posture indicated by the imaginary line. As a result, the steady rest (roller) 24 of the steady rest means 10A, 10B is
It is close to the rear end surface of the load support platform 21 (one of which is a load support platform to be replenished) at the same level on both shelves 19A and 19B so that the transfer device 5 is not swung in the transfer passage 20 in the horizontal direction. Will be fixed.

As described above, the steadying means 10A, 10B
When the transfer device 5 is fixed at a predetermined level, the pair of belt conveyors 9a and 9b of the load transfer means 9 are driven in the direction of sending the load W to the side of the load support table 21 to be refilled.
From the belt conveyors 9a and 9b onto the roller rails 31a and 31b in the load support row of the load support table 21, and the transfer is completed. After the transfer is completed, the belt conveyors 9a and 9b are stopped, and the anti-sway devices 24 of the anti-sway means 10A and 10B are reversed 90 degrees from the anti-sway operation position to the original stopper operation position and then returned. The transfer device 5 is suspended by the suspension belt 12 of the suspension elevating means 13.
To the ascending limit position, and then the transport train 1
To run.

Depending on the configuration of the load supporting portion on the shelf side and the configuration of the load transfer means 9 on the transfer device 5, the load from the transfer device 5 to the shelf side can be transferred as in a general automatic warehouse. The transfer of the load to be sent out and the transfer of the load in the opposite direction of receiving the load from the shelf to the transfer device 5 can also be performed. In addition, the steadying means 10A and 10B attached to the transfer device 5 are not essential to the present invention.

[0017]

As described above, according to the transfer device with the hanging lifting / lowering transfer device of the present invention, when the transfer device is hung down in the transfer passage between the shelves, the transfer device is attached to the transfer device. Since the oblique guide portion between the lower end of the vertical guide portion of the lift guide frame and the horizontal connecting portion guides the transfer device into the transfer passage between the shelves, the transfer device to be suspended swings in the horizontal direction. To avoid hitting the shelves. When the transfer device moves up and down in the transfer passage, the vertical guide portions of the lift guide frame prevent the suspended transfer device from swinging left and right and laterally to contact the shelf incorrectly. Will do.

Therefore, it is possible to safely suspend and lower the transfer device in the transfer passage between the shelves and to raise and lower the transfer device in the transfer passage. Moreover, since there is no need to attach anything to the shelf side, the cost can be reduced, and the existing shelf can be used as it is.

Further, according to the structure of the present invention, a pair of left and right vertical guide portions having an inclined guide portion at the lower end are connected to each other by a horizontal connecting portion to be integrated into a U-shape. The lifting and lowering guide frame completely protects the four corners and the lower part of the transfer device compared to the case where small lifting guide members are independently attached to the four lower corners of the transfer device. it can. The strength of the lifting guide frame itself, particularly the strength of the oblique guide portion that is easily affected by impact, is significantly improved. The accuracy of the distance between the outer surfaces of both vertical guides, which must be set slightly narrower than the width of the transfer passage between the shelves on which the transfer device is suspended, is improved by the integration of both vertical guides by the horizontal connecting part. This can be greatly improved as compared with the case where each vertical guide section has to be specially attached to the transfer device. The work of attaching the lifting guide frame to the transfer device is also facilitated. It can be expected to have special effects such as:

[Brief description of the drawings]

FIG. 1 is a side view in a state where a transfer device is lowered.

FIG. 2 is a front view of the same.

FIG. 3 is a schematic front view showing a shelf and a transfer device.

FIG. 4 is a cross-sectional plan view of a main part in a state where the transfer device is lowered to a predetermined level between shelves.

FIG. 5 is a vertical sectional side view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transport train 2 Train guide rail 5 Transfer device 9 Load transfer means 9a Belt conveyor 9b Belt conveyor 10A Anti-sway means 10B Anti-sway means 11A Elevating guide frame 11B Elevating guide frame 16 Horizontal connection part 16a Inward oblique guide part 17 Vertical guide part 22 Rotation axis 23 A pair of arms 24 Anti-sway device (roller) 25 Anti-sway device attitude switching drive means

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65G 1/00-1/20 B66C 13/06 B66C 17/04 B66F 9/07

Claims (1)

(57) [Claims] 1. A transfer device in which a transfer device is suspended from a self-propelled transfer train guided by a guide rail so as to be able to move up and down.
The transfer device has lifting guides on both front and rear sides thereof.
Frame is attached, and each lifting guide frame is transferred
A pair of left and right vertical guides slightly projecting from the left and right sides of the device
Section and the vertical guide section at a position below the lower end of the transfer device.
Transfer device with a horizontal connecting part connecting the lower ends
It has a U-shape when viewed from the front side, and the two vertical guides
Between the lower end of the part and the horizontal connecting part inward
An oblique guide portion is provided to be inclined.
The distance between the outer surfaces is between the shelves on which the transfer device is suspended
A transfer device with a hanging lifting / lowering transfer device , which is set appropriately narrower than the transfer passage width .