JP5432471B2 - Flexible conductor tube - Google Patents

Description

  The present invention relates to a flexible conductor tube.

2. Description of the Related Art Conventionally, there is a flexible conductor tube having a tube body that is flexible and into which a conductor such as an electric wire or an optical fiber is inserted. This flexible conducting tube can protect the conducting wire inserted into the tube body by the tube body. Such a flexible conducting tube is connected to an attachment target member such as a wiring box or another tube body using a dedicated connecting tool that is a separate component from the tube body.
Japanese Patent No. 3875087

  However, in order to connect the tube main body to the attachment target member, the above-described conventional flexible conducting tube requires a dedicated connector separate from the tube main body in order to connect the tube main body to the attachment target member. However, there is a problem that many resources are required.

  Patent Document 1 discloses a technique for attaching a drain hose to a mouth member by forming a female screw portion at an end portion of the drain hose and screwing the male screw portion to a male screw portion of a mouth member which is another part. Yes. However, this Patent Document 1 does not disclose means for solving the above-described problems of the conventional flexible conducting tube.

  Accordingly, an object of the present invention is to save resources of a structure for connecting a tube main body of a flexible conducting tube to another member.

According to a first aspect of the present invention, there is provided a flexible conductor pipe having a flexible pipe body through which a conductor is inserted, wherein the pipe body is disposed between both ends of the pipe body. A non-threaded portion provided on a portion of the circumferential surface in the axial direction, and provided with a screw portion that can be screw-coupled to another screw member by cutting the tube body; and a bellows portion adjacent to the screw portion in the axial direction. A threaded portion, and the threaded portion is formed with a standardized screw size, and the threaded portion that can be screwed to the other threaded member by cutting the tube body is inserted into the wiring port. In the state, the non-threaded portion fixes the peripheral edge of the wiring port between the other screw member in a state of being screw-coupled to the threaded portion .

According to a second aspect of the present invention, in the flexible conducting tube according to the first aspect, a plurality of the thread portions are formed between both end portions of the tube main body.

According to a third aspect of the present invention, in the flexible conducting tube according to the first or second aspect, the threaded portion is formed at regular intervals in the axial direction of the tube main body.

According to a fourth aspect of the present invention, in the flexible conducting tube according to any one of the first to third aspects, the threaded portion includes a male threaded portion and a female threaded portion formed adjacent to each other. The male screw portion and the female screw portion can be screwed together while being cut from each other.

According to the present invention, a threaded portion that can be screwed to another screw member by cutting the tube body is formed on a part of the peripheral surface of the tube body between both ends of the tube body. The pipe body can be attached to another member (connecting member) using this threaded portion, and the tube of the flexible conductor tube is compared with a structure in which such a threaded portion is provided as a separate part from the tube body. Resource saving of the structure for connecting the main body to other members can be achieved.
In addition, since the threaded part is formed with standardized screw dimensions, standardized parts such as steel conduits with standardized threaded parts can be connected, and connectivity with other members of the flexible conductor tube is possible. Can be increased.

(First embodiment)
A first embodiment of the present invention will be described with reference to the drawings. 1 to 8 show a first embodiment of the present invention, FIG. 1 is a perspective view schematically showing a state in which a flexible conductor tube is wound and grouped, and FIG. 2 is a flexible conductor tube. FIG. 3 is a cross-sectional view showing the threaded portion of the flexible conductor tube and its periphery, and FIG. 4 is an enlarged side view showing the state where the flexible conductor tube is cut by the threaded portion. 5 is a sectional view showing a state in which the flexible conductor tube is connected to the wiring box, FIG. 6 is a sectional view showing a state in which the flexible conductor tube is connected to the mounting plate, and FIG. Sectional drawing which isolate | separates and shows a connection part with a conduit, FIG. 8 is sectional drawing which shows the connection state of a flexible conducting tube and a steel conduit.

  As shown in FIG. 1, the flexible conducting tube 1 of the present embodiment is composed of a flexible tube main body 10, and is formed into a long length with a specified length of 30 to 50 m, for example, and wound. , Distributed in the market in a state of being bound by the band S.

  The tube main body 10 is formed in a long tubular shape using, for example, a flexible synthetic resin (for example, polyethylene) as a material, and a lead wire (not shown) is inserted through the inside. Here, the conducting wire is for guiding electricity or light such as an electric wire or an optical fiber.

  As shown in FIGS. 2 and 3, a plurality of screw portions 11 are formed on a part of the outer peripheral surface 10 a that is the peripheral surface of the tube body 10. As described above, the screw portion 11 is formed on the outer peripheral surface 10a of the tube body 10 and is formed as a male screw. The central axis of the threaded portion 11 coincides with the central axis of the pipe body 10. The screw part 11 is formed with a standardized screw size. This standard is, for example, JIS standard B0204 or C8305.

  The threaded portion 11 is formed at both end portions of the tube main body 10, and a plurality of threaded portions 11 are formed between the both end portions. As shown in FIG. 2, the plurality of screw portions 11 are formed at regular intervals P in the axial direction of the tube body 10. Here, the fixed interval P is, for example, 1 m. These screw portions 11 can be screw-coupled with other screw members. Specifically, the screw portions 11 formed between both end portions of the tube main body 10 are screwed with other screw members by cutting the tube main body 10. Can be combined.

  Moreover, between the adjacent screw parts 11 in the pipe main body 10 is, for example, a bellows part 12 as a non-screw part that cannot be screwed to other screw members. It is easy to bend freely without being crushed.

  And when using this flexible conducting tube 1, as shown in FIG. 4, the pipe | tube main body 10 is cut | disconnected according to the length required for wiring of a conducting wire. In addition, the reference numeral 10 'is given to the pipe body used after cutting. Here, in this cutting, the tube body 10 is cut at the end of the screw portion 11 (cut line A in FIG. 3) so that the screw portion 11 is positioned at the end portion of the tube body 10 ′ used after cutting. .

  The tube body 10 ′ cut to a required length in this way can be connected to, for example, a wiring box 51 shown in FIG. 5 or a mounting plate (end plate) 52 as shown in FIG. 6.

  Specifically, the wiring box 51 shown in FIG. 5 is fixed to a wall 53 with a bolt 54 and a wing nut 55, and a wiring port 51 a is formed on the lower surface of the wiring box 51. Then, the screw portion 11 (hidden in FIG. 5) of the pipe body 10 ′ is inserted into the wiring port 51a from below, and the joint nut 56, which is another screw member, is screwed and fixed to the screw portion 11. It has become. That is, the threaded portion 11 of the tube body 10 can be directly screwed into the joint nut 56. Here, in a conventional flexible conductor tube (not shown) not provided with a threaded portion, a connector is attached to the end of the flexible conductor tube, and this connector is screwed into the joint nut 56 described above. In order to attach the tube main body to the wiring box 51, a connector separate from the tube main body is further required. On the other hand, in the present embodiment, the connector that has been conventionally required is unnecessary.

  Further, the mounting plate 52 shown in FIG. 6 is mounted in a recessed state on the wall 57, and the threaded portion 11 of the flanged flexible conducting tube 20 as the flexible conducting tube routed in the wall 57 is attached thereto. It protrudes outward from the plate 52. Here, the flexible conductor tube 20 with the flange is different from the flexible conductor tube 1 in that a flange 23 is formed between the screw portion 11 and the bellows portion 12, and the other portions are the flexible conductor tube 1. Is the same. And after removing the closing nut 58 which has obstruct | occluded the thread part 11 of the flexible conducting tube 20 with a flange, after the pipe | tube main body 10 'of the flexible conducting tube 1 which is going to connect to this flexible conducting tube 20 with a flange The threaded portion 11 is connected to the threaded portion 11 of the flanged flexible conducting tube 20 by screwing with a joint nut 59 which is another threaded member. In this case, the threaded portion 11 of the tube main body 10 ′ can be connected to the thread 11 of the flanged flexible conducting tube 20 only through the joint nut 59. Here, in a conventional flexible conductor tube (not shown) that is not provided with a threaded portion, a connector separate from the tube main body is attached to the end of the flexible conductor tube, and the connector is inserted through the connector. The pipe body is connected to the joint nut 59. For this reason, conventionally, in order to attach the flexible conducting tube to the attachment plate 52, a connector separate from the tube main body is required as in the case of the wiring box 51 described above. On the other hand, in the present embodiment, the connector that has been conventionally required is unnecessary.

  In addition, since the threaded portion 11 of the tube body 10 is formed with a standardized thread size, as shown in FIGS. 7 and 8, the male threaded portion 14 having the same diameter and standardized with the same standard as the threaded portion 11 is used. It becomes possible to connect to the steel conduit 13 having Specifically, as shown in FIG. 7, a female screw joint 15 that is another screw member that is screwed to the screw portion 11 of the tube main body 10 ′ and the male screw portion 14 of the steel conduit tube 13 is prepared. Then, as shown in FIG. 8, by screwing the screw portion 11 and the male screw portion 14 from both ends of the female screw joint 15, that is, by screwing the screw portion 11 and the male screw portion 14 to the female screw joint 15. The pipe body 10 ′ and the steel conduit 13 can be connected via the female screw joint 15. At this time, the female thread joint 15 may be formed through the female thread 15a having one diameter.

  According to the flexible conducting tube 1 of the present embodiment described above, the threaded portion 11 is formed on a part of the outer peripheral surface 10a of the tube body 10, and the threaded portion 11 formed between both ends of the tube body 10 is Since the screw body 11 can be screw-coupled to other screw members by cutting the tube body 10, the pipe body 10 'can be attached to other members such as the wiring box 51 and the mounting plate 52 using this screw portion 11. Compared to a structure in which the threaded portion is provided as a separate part from the tube body, resource saving of the structure for connecting the tube body 10 ′ of the flexible conducting tube 1 to another member (connecting member) is achieved. Can do.

  Moreover, in this embodiment, since the thread part 11 was formed with the standardized screw dimension, standard parts, such as the steel conduit 13 which has the standardized thread part, can be connected, and the flexible conducting tube 1 The connectivity with other members can be further improved.

  Further, in the present embodiment, since a plurality of screw portions 11 are formed between both end portions of the tube main body 10, by cutting the tube main body 10 with the screw portions 11, a desired screw portion 11 is included. A long tube body 10 ′ can be obtained at the site of routing. Thereby, pipe main part 10 'can be made into appropriate piping length, and resource saving can be aimed at.

  Moreover, in this embodiment, since the thread part 11 is formed for every fixed space | interval P of the axial direction of the pipe main body 10, the pipe main body 10 'of the desired length in which the thread part 11 was contained is attached on the installation site. It can be obtained even more easily.

  In addition, although this embodiment demonstrated the case where the space | interval of the screw parts 11 was constant, you may make it change the space | interval of the screw parts 11 according to a place.

  Moreover, although the example which cut | disconnects the pipe main body 10 at the edge (cut line A in FIG. 3) of the pipe main body 10 was demonstrated, you may cut | disconnect the pipe main body 10 in the intermediate part of the screw part 11. FIG. In this case, a part of the threaded portion 11 exists at the ends of both the cut tube main bodies 10, and both the tube main bodies 10 can be easily connected to other members.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings. 9 and 10 show a second embodiment of the present invention, FIG. 9 is a plan view showing the threaded portion of the flexible conductor tube and its periphery, and FIG. 10 is a diagram of the interconnecting flexible conductor tubes. It is sectional drawing which shows the connection part of each other. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 9, the present embodiment is different from the first embodiment in the threaded portion 11A of the tube main body 10A of the flexible conducting tube 1A.

  11 A of thread parts of this embodiment have male screw part 11Aa formed in the outer peripheral surface 10a which is a surrounding surface of 10 A of pipe main bodies, and female screw part 11Ab formed in the internal peripheral surface 10b which is a surrounding surface of 10 A of pipe main bodies. doing. The male screw portion 11Aa and the female screw portion 11Ab are formed adjacent to each other, and the central axis of the male screw portion 11Aa and the central axis of the female screw portion 11Ab coincide with the central axis of the tube body 10A. As shown in FIG. 10, the male screw portion 11Aa and the female screw portion 11Ab can be screwed together while being cut from each other. Other configurations are the same as those of the first embodiment.

  Therefore, according to the flexible conducting tube 1A of the present embodiment, as shown in FIG. 9, by cutting at the boundary portion B between the male screw portion 11Aa and the female screw portion 11Ab, the male screw portion 11Aa is a female screw (FIG. (Not shown) and can be connected by screwing the female screw portion 11Ab to a male screw (not shown) of another part.

  Moreover, according to the flexible conducting tube 1A of the embodiment, after cutting the tube main body 10A at the boundary B between the male screw portion 11Aa and the female screw portion 11Ab shown in FIG. 9, the male screw portion 11Aa of the tube main body 10A ′ after the cutting. And the female thread portion 11Ab can be screwed together so that the cut tube body 10A 'can be connected again. Therefore, when inserting a conductor into the tube body 10A in a relatively long state, the tube body 10A is divided into a plurality of tube bodies 10A ′, and after conducting wires are inserted into each of the tube bodies 10A, the tube bodies 10A ′ are connected. By doing so, a conducting wire can be easily inserted into a relatively long tube body 10A. Also, when it is necessary to extend the cut tube body 10A ′, as shown in FIG. 10, the male thread portion 11Aa of one tube body 10A ′ and the female thread portion 11Ab of the other tube body 10 ′ are connected. The tube body 10A ′ can be easily extended by screwing.

  The present invention is not limited to the above-described embodiments, and various other embodiments can be adopted without departing from the gist of the present invention. For example, as shown in FIG. 11, the flexible conductor tube has a tube body 10B formed in advance with a specified length, and is provided with a threaded portion 11 only at one end (upper end in the drawing) of the tube body 10B. The other end (lower end in the figure) of the main body 10B may be the flexible conducting tube 1B provided with the connector 16 which is a separate component from the pipe main body 10B without providing the screw portion 11. The connector 16 is provided with a screw portion 16 a similar to the screw portion 11.

  Moreover, the flexible conducting tube may be provided with a threaded portion only at both ends of the tube main body, or may be provided with one or a plurality of threaded portions only at an intermediate portion between both ends of the tube main body. It may be a thing.

  Moreover, the thread part of a flexible conducting tube may be formed only with the internal thread. Further, the threaded portion may not be formed with a standardized dimension.

It is a perspective view showing roughly the state where the flexible conducting wire tube concerning a 1st embodiment of this embodiment was wound and put together. It is a side view which shows the state which extended the flexible conducting tube concerning the 1st Embodiment of this invention. It is sectional drawing which shows the thread part of the flexible conducting wire tube concerning the 1st Embodiment of this invention, and its periphery. It is an enlarged side view which shows the state which cut | disconnected the flexible conducting wire tube concerning the 1st Embodiment of this invention with the thread part. It is sectional drawing which shows the state which connected the flexible conducting tube concerning the 1st Embodiment of this invention to the wiring box. It is sectional drawing which shows the state which connected the flexible conducting wire tube concerning the 1st Embodiment of this invention to the attachment plate. It is sectional drawing which isolate | separates and shows the connection part of the flexible conducting wire tube and steel conduit tube concerning the 1st Embodiment of this invention. It is sectional drawing which shows the connection state of the flexible conducting wire tube and steel conduit tube concerning the 1st Embodiment of this invention. It is a top view which shows the thread part of the flexible conducting wire tube concerning the 2nd Embodiment of this invention, and its periphery. It is sectional drawing which shows the connection part of the mutually connected flexible conducting tubes concerning the 2nd Embodiment of this invention. It is a side view of the flexible conducting tube which shows other embodiment of this invention.

Explanation of symbols

1, 1A, 1B Flexible conducting tube 10, 10A, 10B Tube body 10a Outer peripheral surface (peripheral surface)
10b Inner peripheral surface (peripheral surface)
11, 11A Threaded part 11Aa Male threaded part 11Ab Female threaded part 15 Female threaded joint (other threaded members)
20 Flexible conductor tube with flange (flexible conductor tube)
56 Joint nut (other screw members)
59 Joint nut (other screw members)

Claims (4)

In a flexible conductor tube having a tube body that has flexibility and through which a conductor is inserted,
The tube body is
A threaded portion provided in a part of the axial direction of the peripheral surface of the tube main body between both ends of the tube main body, and capable of being screw-coupled to another screw member by cutting the tube main body;
A non-threaded portion having a bellows portion axially adjacent to the threaded portion ,
The screw portion is formed with a standardized screw size ,
The other screw member in a state in which the non-threaded portion is screw-coupled to the screw portion in a state where the screw portion that can be screw-coupled to the other screw member by cutting the tube main body is inserted into the wiring port. A flexible conducting tube characterized in that the periphery of the wiring port is fixed between the two .   The flexible threaded tube according to claim 1, wherein a plurality of the threaded portions are formed between both ends of the tube main body.   The flexible lead tube according to claim 1, wherein the threaded portion is formed at regular intervals in the axial direction of the tube main body. The screw portion has a male screw portion and a female screw portion formed adjacent to each other,
The flexible lead tube according to any one of claims 1 to 3, wherein the male screw portion and the female screw portion can be screwed together while being cut from each other.

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