JPH03125497A - Cable surplus length treatment mechanism - Google Patents

Abstract

PURPOSE:To facilitate putting in and out of the units by providing a rack tightly stretched on a frame, a rotor engaged with the rack and rotating by holding a cable between and a return mechanism making the rotor to be positioned at a prescribed spot. CONSTITUTION:A rack 5 is fixed to a frame 1 to house a unit 2 to be put in and out by a rail 3A and a rotor 6 moving while rotating along the rack 5 is provided. The rotor 6 is provided with a pinion 6C to be engaged with the rack 5 on the axial part while being formed of two sets of winding axes 6A and of guides 6B holding the winding axes 6B at prescribed intervals and a cable 4 is inserted between two sets of the winding axes 6A. The cable 4 is taken up by rotating the rotor 6 in the arrow A direction, while the cable 4 is taken back by shortening the surplus length of the cable 4 and rotating the rotor 6 in the reversed direction to the arrow A so as to lengthen the surplus length as well as to make the surplus length flexible.

Description

[Detailed Description of the Invention] [Summary] Regarding a cable surplus length processing mechanism that processes the surplus length of a cable laid in a unit from which a unit is pulled out, the laid length of the cable is expanded or contracted in accordance with the pulling out of the unit, and the length of the cable laid in the unit is The purpose is to make loading and unloading easier, and it consists of a rack stretched over a frame, a rotor that engages with the rack and rotates by holding the cable, and a mechanism that positions the rotor at a predetermined location. a return mechanism for returning the rotor to its original position, and the rotor is rotated by taking the unit in and out, or a moving mechanism for moving the first roller in conjunction with taking the unit in and out; A second roller is fixed to the frame so as to be installed side by side, and a cable is strung alternately between the first roller and the first roller and the second roller when the unit is taken in and out.
The arrangement is such that the distance between the rollers can be increased or decreased.

(Industrial Application Field) The present invention relates to a cable surplus length processing mechanism for processing the surplus length of a cable installed in a unit from which a cable is pulled out.

The electronic device is constructed by housing a plurality of units in which electronic devices are mounted in a frame.

In such a configuration, each unit is formed to be pulled out of the frame by a rail or the like so that maintenance and inspection of the electronic device can be easily performed.

Therefore, it is important that the power supply cable or the input/output signal cable connected to such a unit be laid in such a way that the unit can be pulled out.

[Conventional technology]

Conventionally, the configuration was as shown in the conventional plan views of FIGS. 7(a) and 7(b).

As shown in FIG. 7(a), a rail 3A, which is a pull-out mechanism 3, is provided between the two sides of the unit 2 and the support 18 of the frame 1, so that the unit 2 can be taken in and out of the frame 1. It is formed like this.

Further, a cable 4 is installed on the rear surface 2B of the unit 2 via a connector 21, and the cable 4 is supported by a cable holder 20 fixed to the support column A.

Therefore, as shown in (b), unit 2 is attached to frame 1.
When pulling it out as shown by arrow F from the cable holder 2,
By unwinding the cable 4 held by winding it around 0 from the cable holder 20, the extra length of the cable 4 is extended, and the unit 2 is pulled out.

Therefore, when the unit 2 is pushed into the frame 1 and the unit 2 is stored in its original position, the cable 4 is wound around the cable holder 20 again to accommodate the excess length of the cable 4, and the cable 4 hangs down. , care has been taken to ensure that it does not become an obstacle.

[Problems to be Solved by the Invention] However, in such a configuration in which the extra length of the cable 4 is accommodated by winding the cable 4 around the cable holder 20, when inserting or removing the unit 2, it is necessary to remove the unit 2 from the front side. On the other hand, in the case of rear opening, the extra length of the cable 4 has to be lengthened or shortened in accordance with the insertion and removal of the unit 2, which requires operation from both the front side and the back side.

Therefore, when performing maintenance and inspection by pulling out the unit 2 from the frame 1, at least two people are required, which poses a problem in that the work cannot be carried out easily.

Therefore, it is an object of the present invention to extend and contract the laying length of the cable in accordance with the pulling out of the unit, thereby making it easier to take the unit in and out.

[Means for Solving the Problems] FIG. 1 is a first principle explanatory diagram of the present invention, and FIG. 2 is a second principle explanatory diagram of the present invention.

As shown in FIGS. 1 and 2, a rack 5 stretched over a frame 1, a rotor 6 that meshes with the rack 5 and rotates by holding a cable 4; A return mechanism 7 is provided to return the rotor 6 to a predetermined position, and the rotor 6 is rotated when the unit is taken in and out, or the first roller 8 is moved in conjunction with the taking out and taking out of the unit 2. The moving mechanism 10 is fixed to the frame 1 so as to be attached to the first roller 8, and the cable 4 is connected to the moving mechanism 10 by the first roller 8.
and second rollers 9 stretched alternately, and the first and second rollers 8, 9 are stretched by pulling the unit 2 in and out.
It is configured to increase or decrease the interval l.

With this configuration, the above-mentioned problem is solved.

[Effect]

That is, a rotor 6 is provided which rotates to wind up or unwind the cable 4 by sandwiching the cable 4,
Cable 4 can be unwound by pulling cable 4.
The cable 4 is configured to be wound up by moving the rotor 6 using a return mechanism, and the rotor 6 is rotated by taking the unit 2 in and out, and the excess length of the cable 4 is expanded or contracted depending on the direction of rotation of the rotor 6. Alternatively, the cable 4 is strung alternately between the first and second rollers 8 and 9, and the first roller 8 is moved in conjunction with the drawing of the unit 2. The extra length of the cable 4 can be expanded or contracted by increasing or decreasing the distance between the first and second rollers 8 and 9.

Therefore, the extra length of the cable 4 is increased or decreased as the unit 2 is put in and taken out, and maintenance and inspection work can be easily performed without requiring manpower to take the unit 2 in and out as in the past. .

〔Example〕

The present invention will be explained in detail below with reference to FIGS. 3 to 6.

FIG. 3 is an explanatory diagram of an embodiment according to the invention of bookcase 1, and (a
) is a plan view, and (b) is a perspective view of the rotor.

FIG. 4 is an explanatory view of the invention of the bookcase 1, (al) and (a2) are explanatory views of winding and unwinding, and (b) is a side view of the return mechanism.

(a) is a plan view, (b) is a perspective view of the first and second rollers, FIG. 6 is an explanatory diagram of the invention of the bookcase 2, (a) is a side view of the moving mechanism, (bl) ( b2) is an explanatory diagram of movement of the first and second rollers. The same reference numerals indicate the same objects throughout the figures.

As shown in FIG. 3(a), a rack 5 is fixed to the frame 1 in which the unit 2 that is taken in and taken out by the rail 3A is housed, and a rotor 6 that rotates and moves along the rack 5 is provided. It is configured as follows.

Further, as shown in (b), the rotor 6 is provided with a pinion 6C on the shaft portion to be engaged with the rack 5, and has two sets of winding shafts 6A and a guide 6B that holds the winding shafts 6A at a predetermined interval. The cable 4 is formed between two sets of winding shafts 6A.
Insert.

When the cable 4 is inserted into the rotor 6 in this way, as shown in (al) (a2) of FIG. 4, the rotor 6 is rotated, for example, as shown in (a2), By rotating in the direction, the cable 4 is wound up in the direction of arrow B, and the extra length of the cable 40 can be shortened.

Therefore, by rotating the rotor 6 in the direction of the arrow,
The cable 4 is wound up to shorten the remaining length of the cable 4, and by rotating the rotor 6 in the opposite direction to the arrow, the cable 4 is wound back and the remaining length of the cable 4 is lengthened. The extra length can be expanded and contracted.

Furthermore, the rotor 6 has first and second levers 7A and 7B connected so as to be bent by a shaft 7E, as shown in FIG.
and a spring hinge 7D that is locked to a support 7C fixed to the frame 1 and positions the second lever 7B at a predetermined angle.
A return mechanism 7 consisting of the following is provided, and a rotor 6 is locked at the tip of the first lever 7.

Therefore, when the unit 2 is pulled out in the direction of the arrow F, the rotor 6 around which the cable 4 is wound is moved along the rack 5 in the direction of the arrow F1 as the cable 4 is pulled, and the rotor 6 is moved along the rack 5 in the direction of the arrow F1. The levers 7A and 7B are rotated in the direction of arrow C2.

0 In this case, the rotor 6 rotates as shown by arrow B, unwinds the wound cable 4, and the remaining length of the cable 4 is transferred to the unit 2.
It becomes longer to follow the drawer.

Furthermore, when pushing the unit 2 in the direction opposite to the direction of the arrow F, the first and second levers 7A and 7B are rotated in the direction of the arrow C2 by the spring force of the spring hinge 7D, and the rotator 6 is rotated. Return to original position.

In this case, the rotor 6 is rotated in the opposite direction to arrow B, the cable 4 is wound up, and the remaining length of the cable 40 is taken up by the unit 2.
It becomes shorter following the push of .

Therefore, as the unit 2 is taken in and out, the rotor 6 is rotated, and the cable 4 is unwound or wound up, and the remaining length of the cable 4 is expanded and contracted as the unit 2 is taken in and out. There is no need to manually handle the excess length of the cable 40 when the unit 2 is taken in and out.

In addition, in such a configuration, since a tensile force is applied to the cable 4 connected to the unit 2 via the connector 21, the cable 4 is clamped to the rear surface 2B of the unit 2 as shown in FIG. 3(a). It is necessary to lock it by 22.

Furthermore, in the case of FIG. 5, a moving mechanism 10 is provided to move the first roller 8 in conjunction with the insertion and removal of the unit 2, and the first roller 8 and the second roller 9 fixed to the frame 1 are connected to each other. The cables 4 are connected to the unit 2 by stretching the cables 4 alternately between the units.

Further, as shown in (b), the first and second rollers 8 and 9 are formed by a bobbin 8A rotatably held on a shaft 8B, and the cable 4 is stretched on the bobbin 8A. On the other hand, as shown in FIG. 6(a), the moving mechanism 10 slides through the connecting bar 10B connected to the unit 2 and the first to fourth gears 10C to IOP, and the unit 2
When the connecting bar 10B is pulled in the direction of the arrow F, the first to fourth gears 100 to IOF rotate as shown in the arrows, and the slide bar 1OA is slid in the direction of the arrow F1.

1-2 In this case, it is necessary to consider the gear ratios of the first to fourth gears 10c to IOF so that the sliding amount of the slide bar 1OA becomes 172, which is the amount by which the unit 2 is pulled out.

With this configuration, by stretching the cables 4 alternately between the first and second rollers 8 and 9 as shown in (bl) and (b2), for example, as shown in (bl), the unit 2 When the slide bar 1OA is pulled out, the slide bar 1OA is slid in the direction of arrow F2, and the cable 4 is pulled out in the direction of the arrow, so that the remaining length of the cable 4 can be increased.
Conversely, if unit 2 is pushed in, (b2
), a gap is formed between the first and second rollers 8, 9 to absorb and shorten the excess length of the cable 4.

Therefore, following the insertion and removal of the unit 2, the extra length of the cable 4 can be lengthened or shortened as desired without having to be manually processed.

In addition, in FIG. 6(a), the first to fourth gears 10C to 10
Although it has been explained that a plurality of units F are arranged, the sliding amount of the slide bar 1OA is 1 of the pulling amount of the unit 2.
72, and in particular, it can be sufficiently constructed with one gear.

[Effects of the Invention] As explained above, according to the present invention, the extra length of the cable can be increased or decreased by the rotor that winds up or unwinds the cable by taking it in and out of the unit.
Furthermore, the extra length of the cable can be increased or decreased by stretching the cable around two rollers that move when the unit is taken in or taken out, and the extra length of the cable can be freely increased or decreased by taking the unit in or out.

Therefore, it is not necessary to manually process the excess length of the cable as in the past, and maintenance and inspection work can be facilitated, which has a great practical effect.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the principle of the invention in bookcase 1 3 4 The second is an explanatory diagram of the principle of the invention in bookcase 2 Figure 3 is an explanatory diagram of an embodiment according to the invention in bookcase 1, (a
) is a plane of 1 m, (b) is a perspective view of the rotor. Figure 4 is an explanatory diagram of the invention in bookcase 1, (al) (a2) is an explanatory diagram of winding and unwinding, and (b) is a side view of the return mechanism. Figure 5 is an explanatory diagram of an embodiment according to the second invention, (a)
6 is a plan view, (b) is a perspective view of the first and second rollers, FIG. 6 is an explanatory diagram of the invention of the bookcase 2, (a) is a side view of the moving mechanism, FIG. 3 is an explanatory diagram of movement of the first and second rollers. FIG. 7 (aHb) shows a conventional plan view. In the figure, indicates the frame, 2 indicates the unit, and the drawer mechanism.
4 is the cable. 6 is a rack; 6 is a rotor; 8 is a first roller; and 10 is a moving mechanism. 5, lrQ printing 609 Conventional flat m1 figure '7 figure 610-

Claims (1)

[Scope of Claims] [1] A unit (2) that is locked to the frame (1) via a drawer mechanism (3) and stored so as to be freely put in and taken out in a predetermined direction (F); ), the other end of which is connected to the unit (2), and a cable surplus that expands and contracts the length of the cable (4) following the insertion and removal of the unit (2). The long processing mechanism includes a rack (5) stretched over the frame (1), a rotor (6) that meshes with the rack (5) and rotates by holding the cable (4). , a return mechanism (7) for returning the rotor (6) to a predetermined position;
6) A cable surplus length processing mechanism characterized by rotating. [2] A unit (2) that is locked to the frame (1) via a drawer mechanism (3) and stored so as to be freely put in and taken out in a predetermined direction (F), one end of which is locked to the frame (1), A cable (4) whose other end is connected to the unit (2), and a cable surplus length processing mechanism that expands and contracts the laying length of the cable by following the insertion and removal of the unit (2), a moving mechanism (10) that moves a first roller (8) in conjunction with the loading and unloading of the first roller (2); roller (8) and the cable (4).
) and second rollers (9) stretched alternately, and the distance (L) between the first and second rollers (8, 9) can be increased or decreased by inserting and removing the unit (2). Features a cable surplus length processing mechanism.