JPS5832432Y2 - Flexible conduit for hanging control operation boxes - Google Patents

Description

[Detailed Description of the Invention] The present invention is designed to connect a main body with built-in electrical control equipment that controls the operation of various machine mechanisms, for example, and an operation box for controlling it by remote control. The box is designed to protect the group of control wires that are routed across the wires by inserting them into the internal space, and to suspend and support the box so that it can move freely in order to improve workability by ensuring freedom of movement for the control worker. Relating to flexible conduit.

In the conventional flexible conduit of this kind, the control device is connected to the built-in main body or by a chain or wire 4' extending and hanging from a rigid duct 10 extending from the main body as shown in FIG. After suspending and supporting the control operation box B', a flexible tube 2' with a circular cross section for passing electric wires is inserted between the rigid duct 10' and the box B' in a space surrounded by chains and wires 4'. I was passing the time.

However, in this case, multiple chains and wires 4' are exposed to the outside, and moreover, the flexible tube 2' is exposed in a slack state, which not only makes the appearance unsightly, but also
′ is susceptible to damage due to contact with other objects, which poses a problem in terms of durability, and if there is an error in the length of multiple chains or wires 4′, it will hang on one side and the suspension support strength will decrease. Therefore, advanced assembly requires precision, and chains and wires 4'
There was a problem that the occupied space became a dog due to exposure.

The purpose of the present invention is to solve the above-mentioned problems, and first, an embodiment thereof will be explained based on the drawings.

The control wires 11 group wired between the main body A of the electrical control device and the control operation box B therefor are protected by being inserted into the internal space S, and the box B is freely suspended. The supporting flexible conduit is constructed as follows.

That is, the long member 1 made of stainless steel is in a rectangular cylindrical spiral state so as to form the internal space S, and the long member portions IA, which are adjacent in the axial direction, can be relatively moved within a certain range in the axial direction. The box is attached to each end of the flexible tube 2 in the axial direction of the flexible tube 2 for inserting 11 groups of electric wires, which is configured so that any midway portion in the axial direction thereof can be bent freely by winding the tube while being connected to the wires. B and the connecting cylinders 3, 3 having seven joining flanges 3A, 3A are fitted and fixed to the main body A or the rigid duct 10 extending from the main body A side, and in the internal space S of the flexible cylinder 2. A plurality of flexible traction cables 4 are connected to both the connecting cylinders 3, 3, so that when they are in a straight tensioned position, the flexible cylinder 2 is slightly shorter than its maximum extended length. The hooks are connected across to restrict traction in the posture, and the preferred specific structure for implementation is as follows.

That is, like a bicycle chain, the flexible traction rope 4 has a large number of links 4a chained together via pins 4b so as to be bendable, and can be lengthened by changing the number of links 4a chained by pulling out the pins 4b. The traction cable 4 is connected to the opposite short side 2a of the rectangular cylindrical bending tube 2.
, two connecting fittings 5, 5, .
... are connected to the flanges 3A, 3A of the connecting cylinders 3, 3.

In the flexible tube 2, the adjacent elongated member portions IA, IA are fixed to each other in a state of shrinkage contact by brazing or welding so as not to be relatively movable at the portion corresponding to the external fitting of the connecting tubes 3, 3. The connecting cylindrical bodies 3, 3 are externally fitted and fixed via bolts 7.7 inserted through the center of the width direction of the opposing long sides 2b, 2b.

Each connection cylinder 3 has a round flange part 3A and a rectangular cylinder part 3B that are manufactured separately and are connected and fixed with bolts 8, 8.

Both connecting cylinders 3, 3 are connected to the box B and main body A or the extending rigid duct 10 via bolts and nuts 9, 9, . . . with buttons on their flange portions 3A, 3A.

Next, regarding applied modifications, the number of traction cables 4 may be arbitrary, such as four traction cables 4 being disposed at each corner of the rectangular cylindrical bending tube 2 as shown in FIG.

In addition to bicycle chains, wires, chains, ropes, etc. may also be used.

The elongated member 1 of the flexible tube 2 has a relatively simple cross-sectional shape that engages only in one dimension (see FIG. 3).
However, as shown in FIG. 6, it may be engaged in a two-dimensional direction.

Such a flexible tube 2 is expandable and contractible, and is also bendable in two-dimensional directions.

Therefore, box B can be moved in three dimensions.

In summary, the flexible electrical conduit for suspending a control operation box according to the present invention allows the 11 groups of control electric wires that are wired between the main body A of the electrical control equipment and the control operation box B for it to be A flexible electrical conduit that protects the box B by inserting it into the space S and supports the box B in a freely suspended manner, the elongated member 1 being spirally shaped into a rectangular cylinder so as to form the internal space S. In addition, by winding the axially adjacent elongated member portions 1A and IA in a state in which they are connected to each other so as to be relatively movable within a certain range in the axial direction, any midway portion in the axial direction is curved. Seven flange 3A for joining to the box B and the main body A or the rigid duct 10 extending from the main body A side are respectively provided at both ends in the axial direction of the flexible tube 2 for inserting electric wires.
, 3A are externally fitted and fixed, and both the connecting cylinders 3 are fixed in the internal space S of the bending cylinder 2.
, 3, a plurality of flexible traction ropes 4, etc. are towed and restricted to a position that is slightly shorter than the maximum extension length of the flexible tube 2 when they are in a straight tensioned position. The dekake is characterized by being connected across the bridge.

That is, since the traction cable 4 that directly supports the weight of the box B is arranged in the internal space S of the flexible tube 2, the appearance is cleaner than the conventional one mentioned above. Not only does it look very good, but it is also advantageous in terms of space.The flexible tube 2 can protect not only the group of electric wires 11 but also the traction cables 4, improving durability, and making it possible to use multiple wires. Even if there is a length error in the cables 4..., part of the weight of the box 8 can be borne by the bending tube 2, thereby stabilizing the posture of the box B and supplementing the suspension support strength. Furthermore, bending tube 2
With the expansion and contraction of the box B and the curvature in two-dimensional directions, various effects have been achieved such that the movement of the box B can be made sufficiently similar to that of a dog.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the flexible conduit for suspending a control operation box according to the present invention. The figure is a partially cutaway vertical sectional front view, Figure 4 is an end view taken along the line IV-IV in Figure 3, Figure 5 is an end view corresponding to Figure 4 according to an application example, and Figure 6 is a flexible cylinder. A sectional view showing the modification, and FIG. 7 is an explanatory diagram of a conventional example. 1... Long member, 1A... Long member portion, 2... Flexible tube, 2a... Short side part,
3... Connection cylinder, 3A... Flange,
4...Tow line, 4a...Link, 4
b... Bin, 10... Rigid duct, 1
1...Electric wire, A...Body, B...
...Box, S...Inner space.

Claims (1)

[Claims for Utility Model Registration] ■ Protecting the 11 groups of control wires that are wired between the main body A of the electrical control device and the control operation box B thereof by inserting them into the internal space S, A flexible electrical conduit that suspends and supports the box B such that the elongated member 1 is arranged in a rectangular cylindrical helical state and adjacent in the axial direction so as to form the inner space S. By winding IA and IA in a state in which they are engaged and connected so that they can move relative to each other within a certain range in the axial direction, any intermediate part in the axial direction can be bent freely. Seven flanges 3A for joining the box B and the main body A or the rigid duct 10 extending from the main body A side are provided at both axial ends of the curved tube 2, respectively. While externally fitting and fixing the connecting cylinders 3, 3 having a diameter of 3A,
In the internal space S of the bending cylinder 2, the both connecting cylinders 3,
A state in which a plurality of flexible traction ropes 4... are pulled and restricted to a posture slightly shorter than the maximum extension length of the flexible tube 2 when they are in a straight tensioned posture. A flexible electrical conduit for hanging a control operation box, characterized in that the hanging is connected by a bridge. (2) The flexible traction rope 4 is configured such that a large number of links 4a are chained together via pins 4b so that the waist can bend freely, and the length can be adjusted by changing the number of links 4a chained based on the removal of the pins 4b. A flexible electrical conduit for hanging a control operation box according to claim 0 of the utility model registration, which is a chain. (2) Two flexible traction ropes 4 are disposed at positions corresponding to the widthwise centers of the opposite short sides 2a, 2a of the rectangular cylindrical flexible tube 2.Claim No. 0 of Utility Model Registration Flexible conduit for hanging the control operation box described in item 1 or item 2. (2) The control according to claim 0 or (2) of the utility model registration claim, wherein four flexible traction cables 4 are arranged at each corner of the rectangular cylindrical bending tube 2. Flexible conduit for hanging the operation box. (2) The flexible tube 2 is fixed in a state where the adjacent elongated member portions IA, IA are in contraction contact with each other in the portions corresponding to the external fittings of the connecting tubes 3, 3, and are fixed so as not to be relatively movable. A flexible electrical conduit for hanging a control operation box as described in Items 1 to 2 above.