JPH0558409A - Carrier device with hanging elevatabel transfer device - Google Patents

Abstract

PURPOSE:To eliminate swing of a transfer device in the load transferring direction and prevent loads from shifting by making a swing stopper approach an edge surface on a rack side on both sides of the transfer device when changing over the swing stopper to a swing stopping posture. CONSTITUTION:The load transfer means 9 of a transfer device 5 is lowered to a level adjacent, to the load supporting row of a load supporting base 21 which must, replenish loads W, and delivering of a hanging belt is stopped to stop the transfer device 5 to a fixed level. By rotating an arm 23 outwards by 90 degree with the motor 27 of a driving means 25 in this condition, the swing stopping roller 24 of right and left swing stopping means 10A, 10B are first changed from a stopper acting posture to a swing stopping posture which is indicated with a virtual line. As a result, the swing stopping roller 24 approaches a rear edge surface in the load supporting base 21 positioned at the flush level with racks 19A, 19B to secure the transfer device 5 by preventing it from swinging in the horizontal direction inside a transferring passage.

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 guide rails, and in particular, the transfer device transfers each load between shelves. The present invention relates to a transfer device of a type that is used by being hung down to a mounting level.

[0002]

2. Description of the Related Art In the conventional transfer device of the type described above, the transfer device is hung up to a predetermined load transfer level between shelves, and the transfer device or the like on the transfer device is used. When the load is transferred to and from the shelf side, in order to prevent the transfer device from swinging in the load transfer direction and colliding with the shelf side or causing the load to collapse, for example, Japanese Utility Model Laid-Open No. 63-24108. As disclosed in, the clamp device is provided on the transfer device side, and the clamped part that can be clamped by the clamp device is provided on the shelf side. That is, since it is necessary to dispose a special clamped portion for each stop position of the transfer device on the shelf side, there is a drawback that the existing shelf cannot be used as it is.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features will be shown by the reference numerals of the embodiments described later. A transfer device with a suspending / lifting / transfer device of the present invention is a transfer device in which a transfer device 5 is suspended from a transfer train that is guided by guide rails so as to be able to move up and down. At both ends of the load transfer means 9 provided at the both ends, a steady stop 24 that also serves as a load drop stopper and a stopper action for projecting the both steady stops 24 above the load support level of the load transfer means 9 are provided. A drive means 25 for switching between a posture and a swinging action posture that projects laterally outward below the load support level is provided, and the both shakes are set in a state where the transfer device 5 is suspended to a predetermined level. Turn the stopper 24 to the steady rest posture. When replaced, the two bracing members 24
Is configured so as to be close to the end surfaces of the transfer device 5 on the sides of the shelves 19A and 19B on both sides.

[0004]

DETAILED 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 is a transportation train, which is installed at a predetermined height above the floor. A drive wheel 3 fitted to the guide rail 2, a guide roller for steadying the guide rail 2, which is not shown, and a drive motor 4 for running, which drives the drive wheel 3 to rotate in any direction. I have it.

Reference numeral 5 denotes a transfer device, which is an upper frame 6
And a lower frame 8 suspended from the upper frame 6 via a plurality of suspension columns 7, and a pair of belt conveyors for supporting a load W on the lower frame 8 and transporting the load laterally. Load transfer means 9 composed of 9a and 9b, steady rest means 10A and 10B arranged at both left and right ends of the lower frame 8, and a lifting guide frame arranged outside both front and rear ends of the lower frame 8. 11A, 11
B and.

The transfer device 5 is suspended from the transportation train 1 via suspension elevating means 13 provided with four suspension belts 12 connected to the upper frame 6 in the front, rear, left and right directions. .. The suspension elevating / lowering means 13 comprises a drum 14 for winding and unwinding the four suspension belts 12 and an elevating / lowering drive motor 15 for rotationally driving the drum 14 in arbitrary forward and reverse directions. Although the transfer train 1 can be vertically swingably hung below the transfer train 1 so that the transfer device 5 can maintain a horizontal posture even when the transfer train 1 travels up and down the vertically inclined path. In the illustrated example, since the above-described vertically inclined route portion is not present in the traveling route of the transportation train 1, the suspension elevating means 13 is provided inside the frame of the transportation train 1.

The lifting guide frames 11A, 11B
Are of the same shape as each other in the shape of a corner U when viewed from the traveling direction of the transportation train 1, and the lower end horizontal portion 16 located slightly below the lower frame 8 has its left and right ends slanted. The vertical guide portion 17 is formed by cutting and has an inwardly inclined guide portion 16a, and extends slightly to the left and right outside of the lower frame 8. The upper end reaching near the upper frame 6 is slightly inward (upper frame 6). The vertical guide portion 17 is attached to the transfer device 5 by being connected to the suspension column 7 on the same side by a connecting member 18.

FIG. 3 shows a state in which the transport train 1 constructed as described above is used, and the guide is provided right above the transfer passage 20 between the pair of left and right shelves 19A and 19B installed on the floor. The rail 2 is installed. Each shelf 19A, 19B is
It is provided with a plurality of upper and lower stages of load supporting bases 21 using a free roller conveyor that is inclined in a direction perpendicular to the transfer passage 20 as it moves away from the transfer passage 20, and each rack 19A, 19B. The load supporting bases 21 of the respective stages are arranged at the same level. Reference numeral 22 is a side frame that supports the load supporting base 21 at each stage. Further, as shown in FIGS. 4 and 5, the lateral width of the transfer passage 20, that is, between the rear end surfaces of the load supporting bases 21 of the stages of both shelves 19A and 19B on the transfer passage 20 side. The interval D1 is the maximum lateral width of the transfer device 5, that is, the elevating guide frames 11A and 11B, so that the transfer device 5 can move up and down in the transfer passage 20.
Is set appropriately wider than the distance D2 between the outer side surfaces of the left and right vertical guide portions 17.

As shown in FIGS. 4 and 5, the steady rests 10A and 10B are provided with a rotary shaft 22 horizontally supported by the lower frame 8 between both ends of the belt conveyors 9a and 9b.
A pair of arms 23 fixedly provided at both ends of the rotary shaft 22; a steady rest 24 composed of rollers supported by a horizontal support shaft between the pair of arms 23; and a steady rest 24 of the steady rest 24. The attitude switching drive means 25 includes a gear 26 fixed to the rotary shaft 22, and a gear 27 fixed to the rotation shaft 22, and a gear 27 meshing with the gear 26 attached to the output shaft. And 28.

Therefore, by operating the motor 28 to rotate the rotary shaft 22 in the forward and reverse directions, the steady rest (roller) 24 is rotated around the rotary shaft 22 via the pair of arms 23. It is possible to switch between the stopper working posture shown by the solid line in FIG. 5 and the steady rest working posture shown by the phantom line. In the stopper working posture, the steady rest 24 is moved by the load transfer means 9 (belt conveyor 9
a, 9b) above the load supporting level, and in the steady rest posture, the steady rest 24 is below the load supporting level of the load transfer means 9 and laterally outside the lower frame 8. Project.

Although not shown, the rotary shaft 22
A rotation limit stopper that allows only the forward and reverse rotation of the (arm 23) within the range of 90 degrees is also provided. Further, in the figure, 29 is a motor with a speed reducer for rotating and driving a pair of belt conveyors 9a, 9b in forward and reverse directions, and 30a, 30b are side guides provided on both left and right sides of the load transfer means 9. Yes, 31a and 31b are load-supporting roller rails arranged in parallel for each load-supporting row in each of the load-carrying bases 21 of the shelves 19A and 19B, and 32 is each of the load-carrying bases of the shelves 19A and 19B. 21 is a partition guide disposed between the respective load supporting rows in 21.

A method of using the transporting device constructed as described above will be explained. As shown in FIG. 3, shelves 19A and 19B are provided.
If there is a load supporting row of the load supporting bases 21 for which the load W needs to be replenished in each of the step load supporting bases 21, the load transfer means 9 (the pair of left and right belts) of the transfer device 5 being suspended. Corresponding to the load-supporting row of the load-bearing table 21 on which the transport train 1 supporting the load W to be replenished on the conveyors 9a, 9b) is self-propelled along the guide rail 2 and the load W must be replenished. Stop at a fixed position. When the transport train 1 is running, the transfer device 5 is hung up to the upper limit, as shown in phantom lines in FIGS. 1 and 2 and in solid lines in FIG.
In addition, steady rests 10A, 1 at both ends of the load transfer means 9
In 0B, as shown by the solid lines in FIGS. 1, 2 and 5, the steady rests (rollers 24) are switched to the stopper working posture, and these steady rests (rollers 24)
Serves 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 unwinding the suspending belt 12 of the suspending elevating means 13 as shown in FIGS. As shown by the phantom line in FIG. 3, it is hung down in the transfer passage 20 between both shelves 19A and 19B. At this time, the lifting guide frames 11A attached to the front and rear ends of the transfer device 5,
The inwardly directed guide portion 1 at both ends of the lower end horizontal portion 16 is provided between the rear end faces of the respective stage load supports 21 on both shelves 19A and 19B, that is, in the transfer passage 20 by the transfer device 511B.
In addition to being guided by 6a, both side vertical guides 17 prevent the descending transfer device 5 from swinging greatly in the lateral direction.

The load support base 2 on which the load W must be replenished
When the load transfer means 9 of the transfer device 5 is lowered to a level adjacent to the load supporting row 1, the feeding device 5 is stopped to stop at a constant level.
In such a state, first, the arm 27 is rotated 90 degrees outward by the motor 27 of the drive means 25 to rotate the steady rests (rollers) 24 of the left and right steady rests 10A and 10B from the stopper working posture. Then, the posture is changed to the steady rest action posture indicated by a virtual line. As a result, the steady rests (rollers) 24 of both the steady rests 10A and 10B are
The transfer device 5 is swung laterally in the transfer passage 20 close to the rear end surface of a load support table 21 (one of which is a load support table to be replenished) on the same level of both shelves 19A and 19B. It will be fixed so that it does not exist.

As described above, the steady rests 10A, 10B
When the transfer device 5 is fixed at a predetermined level by, the pair of belt conveyors 9a and 9b of the load transfer means 9 is driven in the direction of sending the load W to the side of the load support base 21 to be loaded, and the load W is moved.
From the belt conveyors 9a and 9b to the roller rails 31a and 31b in the load supporting row of the load supporting base 21 to complete the transfer. After the transfer is completed, the belt conveyors 9a and 9b are stopped, and the steady rests 24 of both the steady rests 10A and 10B are reversed by 90 degrees from the steady rest working posture to the original stopper working posture and then returned. , The transfer device 5 and the belt 12 for suspending the suspension elevating means 13.
To the upper limit position, and then the transportation train 1
Run.

The structure of the load supporting portion on the shelf side and the transfer device 5
Depending on the configuration of the load transfer means 9 on the side, load transfer for sending a load from the transfer device 5 to the shelf side, and reverse for receiving the load from the shelf side to the transfer device 5 side, like a general automated warehouse. It is also possible to carry out load transfer in the direction. Further, as in the above-described embodiment, by using a roller pivotally supported at the tip of the arm 23 as the steady rest 24, the steady rest 2
Even when 4 is switched from the stopper working posture to the steady rest working posture, even if it collides with the shelf side due to the shaking of the transfer device 5, the posture of the steady rest 24 can be smoothly switched. The elevating guide frames 11A and 11B attached to the transfer device 5 are not essential to the present invention.

[0017]

As described above, according to the carrying device with the hoisting / lifting / transfer device of the present invention, the transfer device of the transfer device is suspended while the transfer device is suspended to the load transfer level. When the both steady rests at both ends of the mounting means are switched to the steady rest working posture, the both steady rests are close to the end faces of the shelving sides on both sides of the transfer device, and the transfer device is located at both sides. Fixed between shelves. Therefore, when transferring a load between the transfer device suspended from the transport train and the shelves on both sides, there is no possibility of the transfer device swinging in the load transfer direction. , It can be done safely without causing a load collapse.

Moreover, since it is not necessary to attach anything to the shelves, there is an advantage that the existing shelves can be used as they are. Furthermore, when the transfer device is moved up and down between the shelves and the transportation train is used. When the load on the transfer device is run and transported, the both steady rests are switched to the stopper working postures to prevent the load on the transfer device from slipping and falling. Therefore, the cost can be reduced compared to the case where a dedicated stopper that can freely appear and disappear must be installed. Further, the steady rests protruding to the left and right sides do not interfere with the lifting and lowering of the transfer device and the traveling of the transportation train, and the lifting and lowering of the transportation device and the traveling of the transportation train can be safely performed.

[Brief description of drawings]

FIG. 1 is a side view showing 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 essential parts in a state where the transfer device is lowered to a predetermined level between shelves.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Transport electric train, 2 ... Train guide rails, 5 ... Transfer device, 9 ... Load transfer means, 9a, 9b ... Belt conveyor, 10A, 10B ... Steady stop means, 11A, 11B ... Elevating guide frame, 22 ... rotary shaft, 23 ... pair of arms, 24 ... steady rest (roller) 25 ... steady rest posture switching drive means, 26, 27 ... gear, 28 ... motor with reduction gear.

Claims (2)

[Claims] 1. A transfer device in which a transfer device is hung up and down from a self-propelled transfer train guided by a guide rail, and the transfer device is provided at both ends of a load transfer means provided in the transfer device. , A steady stop that also serves as a load drop stop stopper, and a stopper action posture in which both the steady rests project above the load supporting level of the load transfer means, and laterally outward below the load supporting level. When the transfer device is switched to the steady rest action posture while the transfer device is suspended to the load transfer level, the shaker A carrier device with a suspending / lifting transfer device, wherein the stoppers are arranged so as to be close to the end faces of the transfer device on both sides of the shelf. 2. The transfer device with a lifting / lowering transfer device according to claim 1, wherein the steady rest comprises a roller pivotally supported by a tip end of an arm pivotally supported up and down.