JPH1120913A - Moving rack unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a cable support lanyard to be simply, easily, and inexpensively laid by movably engaging a trolley for suspending a power supply cable between racks with the cable support lanyard laid between fixing racks and relatively movably supporting it by a support guide arranged at a moving rack. SOLUTION: In each of racks 1A to 1C, a power supply cable 9 between two racks on approaching state, for example, between moving racks 2A and 2B, between moving racks 2B and 2C, and between the moving rack 2C and a fixing rack 1B is contracted in lengthwise direction of a cable support lanyard 4 in a state in which the cable is wound in a coil shape with approaching movement of a plurality of trolleys 11 suspending the cable 9. When a working path 3 is formed between adjacent arbitrary two racks, for example, between the fixing rack 1A and the moving rack 2A through horizontal movement of the moving racks 2A to 2C, the cable 9 is expanded in lengthwise direction of the cable support lanyard with spacing movement of a plurality of trolleys 11 suspending the cable 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable rack in which a plurality of movable racks are movably disposed between two fixed racks so that a work passage can be formed between arbitrary adjacent racks. The present invention relates to a device, and particularly to a means for supporting a power supply cable for each movable rack.

[0002]

2. Description of the Related Art In this type of mobile rack apparatus, a power supply cable to each mobile rack is routed between at least one fixed rack and an adjacent mobile rack and between each mobile rack. Thus, since the cables between the racks are longer than the distance between the two racks that are maximally separated to form a working path,
By laying a guide rail or hanging a wire rope in parallel with the moving direction of the moving rack, hanging a plurality of intermediate portions of the cable with a trolley movably engaged with the guide rail or the wire rope,
When the adjacent racks approach each other, a configuration is adopted that prevents the cable from hanging down to the floor side for a long time.

Conventionally, in a moving rack apparatus having the above-described structure, a cable supporting guide rail or a wire rope is laid or hung in a direction parallel to the moving direction of the moving rack using a ceiling beam or a wall of a building. I was stretching.

[0004]

However, in the above-described conventional configuration, if there is no wall for supporting or locking the ends of the guide rails and the wire ropes around the installation location of the movable rack device, the ceiling beam is required. Must support or lock the end of the guide rail or wire rope through the support bracket from, especially when the ceiling height is high,
A great deal of cost will be required for installing or hanging these guide rails and wire ropes. Further, in the configuration using the guide rail, since the weight itself is heavy, the cost of the entire cable supporting means including the bracket for supporting the guide rail is increased. Although there is no such a problem in the configuration using the wire rope, the wire rope is tensioned by a tensioning means using a screw in order to hang the wire rope without slack. (Tension) may damage the bracket that locks the end of the wire rope or the building side to which the bracket is attached.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a moving rack apparatus which can solve the above-mentioned conventional problems. , Two fixed racks 1A,
A plurality of movable racks 2A to 2C are movably arranged between the racks 1B so that a work passage 3 can be formed between any adjacent racks, and at least one fixed rack 1A and a movable rack adjacent thereto are arranged. Rack 2A and each moving rack 2A
1 to 2C, a cable rack 9 is provided between the fixed racks 1A and 1B. A trolley 11 for suspending each power supply cable 9 between the racks is movably engaged with the cable 4 or the rod-like body, and the cable 4 is attached to each of the movable racks 2A to 2C.
Or, a support guide 1 for supporting a rod-shaped body so as to be relatively movable.
3 is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
Is a fixed rack installed on the floor, and 2A to 2C are movable racks. The racks 1A to 2C are arranged in parallel with each other, and the movable racks 2A to 2C are
A and 1B are supported on guide rails laid on the floor so as to be able to move laterally in a direction connecting the fixed racks 1A and 1B. The work passage 3 can be formed between 1A and 2C.

Reference numeral 4 denotes a cable support cable (such as a wire rope) hung on both fixed racks 1A and 1B.
As shown in FIG. 3, the ends of the fixed racks 1 </ b> A and 1 </ b> B are locked by brackets 5 projecting horizontally outward at positions near the upper ends of the same side ends. Between the cable support cable 4 and the cable support cable 4, a tensioning means 6 for tensioning the cable support cable 4 is interposed. The tensioning means 6 has a cable supporting cable 4 at its inner end.
The cable support cable 4 can be appropriately tensioned by tightening the screw nut 7 and the like.

Reference numeral 9 denotes two adjacent racks 1A and 2A.
A, 2A, 2B, 2B, 2C, 2C, 1C, a power supply cable (including a control signal line),
Both ends are connected to a terminal box 10 attached to an end of each of the racks 1A to 2C on the same side as the side on which the cable supporting cable 4 is hung. Numeral 11 denotes a trolley for suspending a plurality of equally-spaced portions of the power supply cable 9;
It is movably engaged with the cable support cable 4 via a pulley 12 therebetween.

A cable support guide 13 is provided at the end of each of the movable racks 2A to 2C on the same side as the side on which the cable support cable 4 is hung. The cable support guide 13 includes a bracket 14 protruding horizontally outward at the center of the width in the movement direction of each of the movable racks 1A to 2C, and the cable support cable 4 below the distal end of the bracket 14. And a pulley 15 pivotally supported so as to be supported for relative movement.

According to the above configuration, as shown in FIG. 1, between two racks 1A to 2C which are close to each other (in FIG. 1, between the moving racks 2A and 2B, between the moving racks 2B and 2C). , And between the movable rack 2C and the fixed rack 1B), the power supply cable 9 is wound in a coil shape with the approaching movement of a plurality of trolleys 11 suspending the cable 9 as shown in FIGS. In this state, the length of the cable support cable 4 is reduced in the length direction. Moving rack 2A ~
When the work passage 3 is formed between any two adjacent racks (in FIG. 1, between the fixed rack 1A and the movable rack 2A) by the lateral movement of 2C, a plurality of trolleys 11 for hanging the cable 9 are provided. Is extended in the length direction of the cable support cable 4 with the separation movement of the cable support cable 4.

In the above embodiment, the fixed racks 1A, 1B
Although the cable supporting cable 4 is provided between the cables, a rod-shaped body may be used instead of the cable (such as a wire rope) 4. As the rod-shaped body, a solid or hollow wire such as a round bar or a square bar, or a shaped steel having an appropriate cross section such as a lightweight angle steel or a lightweight channel steel can be used. When the rod is used in this manner, the tensioning means 6 is not necessary, and the pulley 15 of the support guide 13 is provided with a pulley having a groove for supporting the rod corresponding to the sectional shape of the rod to be used. Just use it.

As described above, the movable racks 2A to 2C are moved to the limit so that excessive tension does not act on the power supply cable 9 extended by the lateral movement of the movable racks 2A to 2C for forming the work passage. Even if it moves, the length is set so that the power supply cable 9 slightly hangs between the trolleys 11 or between the terminal box 10 and the trolley 11, but as necessary, as shown by a virtual line in FIG. A chain 16 having a length slightly shorter than the length of the cable between the trolleys 11 and between the terminal box 10 and the trolley 11 is laid between the trolleys 11 to prevent excessive tension from acting on the power supply cable 9. It can be configured to be prevented by the chain 16 or the like.

The power supply cable 9 is connected to each moving rack 2.
In addition to power supply to the traveling motors A to 2C, power supply to the control panel of the traveling motors provided in each of the movable racks 2A to 2C, and the movable racks 2A to 2C and the fixed racks 1A,
Used for exchanging signals between control devices such as various sensors provided in 1B and control panels of the movable racks 2A to 2C, but when control devices such as sensors are not provided in the fixed racks 1A and 1B. Has two fixed racks 1A, 1
B, the power supply cable 9 between one of the fixed racks and the adjacent movable rack 2A or 2C can be omitted.

[0014]

As described above, according to the moving rack apparatus of the present invention, the power supply cable extended between the fixed rack and the adjacent moving rack or between the moving racks is supported via the trolley. Since the cable support cable or rod-like body is installed between the two fixed racks, the mobile rack device and the building can be compared with the conventional system where guide rails and cable support cables are installed on the building side. The cable support cable or rod can be easily and inexpensively installed without being affected by the positional relationship with the wall or the ceiling beam.

In addition, the intermediate portion of the cable supporting cable or rod-like body provided between the two fixed racks is supported by the supporting guide provided on the movable rack side.
When using a cable support cable, it is possible to prevent undesired hanging of the cable without strongly tensioning the cable, and to provide a trolley for suspending the power supply cable between racks within the area between the adjacent racks. It can be moved smoothly with the lateral movement. Therefore, even in a large-sized mobile rack device in which the distance between the fixed racks is large, excessive tension is applied to the cable support cable, and an unreasonable bending stress is applied to both fixed racks inwardly. This eliminates the inconvenience of knocking down the fixed rack.

Even when a rod is used in place of the cable support cable, a heavy-weight section steel or the like having a large bending strength is used so that the rod does not unduly hang between the fixed racks. There is no need to use a thin wire or lightweight steel, and since there is no need for a tensioning means as in the case of using a cable, the cost of the entire apparatus can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is an overall front view.

FIG. 2 is a front view showing details of a main part.

FIG. 3 is a plan view of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A, 1B Fixed rack 2A-2C Mobile rack 3 Work path 4 Cable support cable 5 Bracket 6 Tension means 9 Power supply cable 10 Terminal box 11 Trolley 12 Pulley 13 Supporting guide 14 Bracket 15 Pulley

Claims (1)

[Claims] A plurality of movable racks are movably disposed between two fixed racks so that a work path can be formed between any adjacent racks. A moving rack device comprising a cable for feeding power to each moving rack between adjacent moving racks and between each moving rack, wherein a cable supporting cable or a rod-like body is erected between both fixed racks, A movable rack in which a trolley for suspending each cable between racks is movably engaged with the cable or rod, and a support guide is provided on each movable rack for supporting the cable or rod relatively movably. apparatus.