JP3067964B2 - Support device for cables etc. in the erector 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 device for supporting cables and the like in an erector device provided in a shield machine.

[0002]

2. Description of the Related Art Generally, a shield machine is provided with an erector device for arranging a segment at a predetermined position on an inner surface of an excavated hole.

[0003] The erector device is mainly composed of a slewing ring that is slidable in a shield main body in a vertical plane by a slewing drive device, and is provided on the slewing ring to hold a segment or to position the segment. And a support device such as a cable for pivotally supporting a hydraulic hose for supplying hydraulic pressure to the hydraulic cylinder and a cable for supplying control signals and power to its control device. ing.

Conventionally, as a supporting device for such a cable, there is a device disclosed in Japanese Utility Model Laid-Open No. 60-100499. The support device includes a guide ring such as a cable provided on a swivel ring, and another end of a cable or the like arranged on the fixed side of the shield body and having one end connected to the swivel ring via the guide ring. And a winding device for winding the part.

[0005]

According to the above-described structure of the winding device such as a hose, there is a limit in increasing the number of cables and the like.

In addition, a slip ring is required at the position where the cable is wound, and therefore, there is a problem that the capacity and noise are mixed in this portion. Furthermore, in the case of a hose, a rotary joint is required,
Pulling and pulling on hoses and cables
There is also a problem that damage due to bending occurs.

Accordingly, an object of the present invention is to provide a support device for a cable or the like in an elector device which can solve the above-mentioned problem.

[0008]

In order to solve the above-mentioned problems, a supporting device for a cable or the like in an elector device according to the present invention includes an outer ring disposed in a shield main body at a position outside a turning ring of the elector device. The inner ring is arranged on the corresponding swivel ring side, and an arc-shaped support movably arranged with respect to the two rings is arranged in an annular space formed between the two rings. A chain-like connecting body in which a plurality of link members are connected to a support is arranged, and one end of the connecting body is connected to the outer ring and the other end is connected to the inner ring, and the connecting body is It supports cables and the like.

[0009]

According to the above construction, when the swivel ring is swiveled, the connecting member arranged along the outer peripheral surface and the inner peripheral surface of the support moves along the swivel ring, so that cables and the like cannot be used. Follow the swivel ring.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 to 3, reference numeral 1 denotes a shield body 2.
2 is a swivel ring of an erector device for arranging segments provided therein.

Although not shown, the revolving ring 1 holds a segment and revolves it to a predetermined position.
A plurality of hydraulic cylinders for moving to the inner wall surface of the excavated hole are provided.

A hose and a cable (hereinafter referred to as a cable or the like) 3 for supplying a hydraulic signal to such a hydraulic cylinder and a control signal and electric power to its driving device.
Is provided with a supporting device 4 for supporting.

The support device 4 includes an outer ring 11 disposed inside the shield body 2 at a position outside the swivel ring 1,
An inner ring 12 arranged on the turning ring 1 side at a position corresponding to the outer ring 11;
In the annular space 13 formed between the two and the two rings 11,
Arc-shaped support 1 movably arranged with respect to 12
4 and a chain-like connected body supported along the outer and inner peripheral surfaces of the support 14 (specifically, a plurality of link members connected in a chain, 15). In addition, this connection body 15 is provided in one pair on right and left.

The support 14 comprises left and right circular side plates 21 and a connecting plate 22 for connecting the side plates 21 to each other.
Attachment members 2 are provided on the outer and inner peripheral portions of each side plate 21 respectively.
It is composed of outer and inner guide rollers 25 and 26 attached via the base plates 3 and 24, and side guide rollers 27 provided on the outer surface of the intermediate portion of each side plate 21. Of course, the outer ring 11 guides the outer guide roller 25, and the inner ring 12 guides the inner guide roller 26. The side guide roller 27A provided on the front side of the shield main body 2 of the support 14 is guided to the side of the annular support plate 2a fixed to the shield main body 2 side. The side guide roller 27B provided on the side is guided by an annular guide plate 31 protruding from the outer ring 11 side.

One end 15a of the connecting member 15 is connected to the outer ring 11 and the other end 15b
Are connected to the inner ring 12, and the cable or the like 3 is supported by the connecting body 15. Of course, one end of the cable 3 is fixed to the shield main body 2 side, and the other end is fixed to the turning ring 1 side. FIG. 4 is an enlarged schematic cross-sectional view for clarifying the portion of the support 14.

Therefore, in the above configuration, when the turning ring 1 of the elector device turns to the left, for example, the inner peripheral portion of the connecting body 15A on the left moves to the outer ring 11 and the support 14 also moves to the left. Moving. Therefore, the connecting body 15A supported on the inner surface of the supporting body 14
The cable or the like 3 wrapped around the outer surface of the support body 14 in a semicircular shape, that is, the cable 3 supported by the connecting body 15 moves smoothly from the inner surface to the outer surface by the amount of the turning of the turning ring 1. The operation of the right connector 15B is the reverse of the above.

In FIG. 2, the swivel angle of the swivel ring 1 is shown to be possible up to 210 degrees. Of course, a limit switch, a swivel and a swivel angle are set so as not to swivel beyond this swivel angle. An angle detector or the like is provided to prevent the turning ring 1 from turning too much.

As shown in FIGS. 3 and 4, a large number of guide rollers 32 are provided on the inner peripheral portion of the connecting member 15 so that the connecting member 15 can move smoothly on the outer surface and the inner surface of the supporting member 14. Is provided.

[0019]

As described above, according to the structure of the present invention, between the outer ring on the fixed side which is the shield main body side and the inner ring on the movable side which is the swivel ring side, the two rings can be freely moved. The arranged arc-shaped support is arranged, a chain-like connecting body is guided along the outer peripheral surface and the inner peripheral surface of the supporting body, and a cable or the like is supported by the connecting body. This eliminates the need for a winding device for cables and the like, so that there is no need to provide a rotary joint, a slip ring, and the like, and it is possible to prevent damage to the cables and the like.

[Brief description of the drawings]

FIG. 1 is a sectional view of a support device for a cable or the like according to an embodiment of the present invention.

FIG. 2 is a view taken along the line AA of FIG. 1;

FIG. 3 is a sectional view of a main part of FIG. 1;

FIG. 4 is an enlarged view of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Swivel ring 2 Shield body 3 Cable etc. 4 Supporting device 11 Outer ring 12 Inner ring 13 Annular space part 14 Support body 15 Connected body

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E21D 11/40

Claims (1)

(57) [Claims] 1. A supporting device, such as a cable, for supplying power to an erector device for arranging a segment, which is rotatably provided in a shield body, wherein the shield is provided at an outer position of a slewing ring of the erector device. In the main body, the outer ring was arranged, and the inner ring was arranged on the corresponding swivel ring side, and the inner ring was movable in the annular space formed between the two rings with respect to the both rings. An arc-shaped support is arranged, a chain-like connecting body in which a plurality of link members are connected to the supporting body is arranged, and one end of the connecting body is connected to the outer ring and the other end is connected to the outer ring. A supporting device for a cable or the like in an elector device, wherein the supporting device is connected to an inner ring and the connected body supports a cable or the like.