JP2009005428A - Protection tube coupling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protection tube coupling which suitably couples double protection tubes arranged along the wall, or the like, and uncouples them easily. <P>SOLUTION: The protection tube coupling 5 comprises a resilient latching operation section 3 having: a portion 3a for bringing a protection tube into locked state by latching to the outer surface of the protection tube inserted into the hub 1 of a protection tube coupling 5; and a portion 3b for uncoupling the protection tube by shifting the latching portion 3a to the outside of the hub 1 through operation from the outside of the hub, wherein at least the uncoupling portion 3b is arranged in a position other than the wall surface W side of a joint 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tubular protective tube connector provided with connecting portions at both ends for connecting a corrugated protective tube in which wiring / piping materials are disposed.

  The corrugated protective pipe that protects the wiring and piping materials in the double ceiling and walls has a double protective pipe connected by a connecting part along the axial direction, and such a double protective pipe is connected to the wiring box. A protective tube connector for this purpose is proposed in Patent Document 1.

  FIG. 5 is a perspective view showing a use state of the protective tube connector as the background art of the present invention.

  This protective tube connector 15 connects a double protective tube WP, in which two independent corrugated protective tubes WPa are connected in the axial direction by a connecting portion PA, to the wiring box 17, for example, as in this example. In addition, the duplex protective tube WP can be easily connected to the wiring box 17 attached to the pillar P in the wall surface, and the workability is good.

  However, in this protective tube connector 15, the locking portion 13 a provided in the receiving port 11 that receives each protective tube WPa can be easily released after locking the outer periphery of the inserted protective tube WPa. This is a structure that cannot be removed, and it is difficult to remove the double-type protective tube WP once inserted.

The protective tube connector 15 is suitable for connecting the double protective tube WP to the wiring box 17, but is suitable for connecting the multiple protective tubes WP disposed along the wall or the like. There wasn't.
Japanese Patent Laying-Open No. 2005-160139 (FIG. 1)

  The present invention is intended to solve the above problem, and provides a protective tube connector that can suitably connect and easily disconnect multiple protective tubes arranged along a wall or the like. With the goal.

The protective tube connector according to claim 1 is a tubular protective tube connector provided at both ends with a connecting portion for connecting a corrugated protective tube in which wiring / piping material is disposed. Is provided with a plurality of receptacles in parallel so that a plurality of protective pipes arranged in parallel along the wall surface can be connected in parallel.
Between the at least two adjacent receiving ports arranged in parallel, a connecting portion insertion space is formed that can receive the connecting portion of the dual protection tube connected by the connecting portion along the axial direction,
A locking portion that locks to the outer surface of the protective tube inserted into the receiving port and prevents the protective tube from coming off, and the locking portion is moved outward by the operation from the outside of the receiving port. An elastic locking operation part having a release operation part for releasing the locking to the protective tube,
At least the release operation part is arranged at a position other than the wall surface side of the connection part.

  The protective tube connector according to claim 2 is dependent on claim 1, and the elastic locking operation portion is provided so that the protective tube can be released for each receiving port. .

  The protective tube connector according to claim 3 is dependent on claim 1 or 2, wherein the two receiving ports are provided in parallel, and the elastic locking operation portion can be operated with one hand. It is characterized by being provided facing the outside.

  The protective tube connector according to claim 4 is dependent on claim 1 or 2, wherein two receptacles are provided in parallel, and the elastic locking operation portion is configured to be operated with one hand. It is provided on the opposite side of the wall surface side.

  According to a fifth aspect of the present invention, there is provided the protective tube connector according to the fourth aspect, wherein the two elastic locking operation portions are provided close to each other and can be simultaneously operated by a human finger.

According to the protective tube connector according to claim 1, a tubular protective tube connector provided at both ends with a connecting portion for connecting a corrugated protective tube in which wiring / piping material is disposed, The connecting portion is provided with a plurality of receiving ports in parallel so that a plurality of protective pipes piped in parallel along the wall surface can be connected in parallel.
Between the at least two adjacent receiving ports arranged in parallel, a connecting portion insertion space is formed that can receive the connecting portion of the dual protection tube connected by the connecting portion along the axial direction,
A locking portion that locks to the outer surface of the protective tube inserted into the receiving port and prevents the protective tube from coming off, and the locking portion is moved outward by the operation from the outside of the receiving port. An elastic locking operation part having a release operation part for releasing the locking to the protective tube,
Since at least the release operation part is arranged at a position other than the wall surface side of the connection part, the wall surface does not become an obstacle to the release operation, and the multiple protective tubes arranged along the wall or the like are preferably used. Connect and disconnect easily.

  According to the protective tube connector of claim 2, in addition to the effect of claim 1, the elastic locking operation portion is provided so that the protective tube can be released for each receiving port. In the case of connecting a single wave protection tube, the connection of the protection tube can be released for each receptacle.

  According to the protective tube connector of the third aspect, in addition to the effect of the first or second aspect, the two receiving ports are provided in parallel, and the elastic locking operation portion can be operated with one hand. Since it is provided opposite to the outer side of the socket, the connection can be easily released simultaneously with one hand.

  According to the protective tube connector of claim 4, in addition to the effect of claim 1 or 2, two receptacles are provided in parallel, and the elastic locking operation part can be operated with one hand. Because it is provided on the opposite side of the wall surface of the receiving port, it is possible to easily release the connection between two adjacent protective tubes at the same time with one hand while the protective tube connector is installed on the wall surface. it can.

  According to the protective tube connector of the fifth aspect, in addition to the effect of the fourth aspect, the two elastic locking operation portions are provided close to each other and can be operated simultaneously with a human finger. With the pipe connector installed on the wall surface, the connection release operation at two adjacent positions of the connected protective pipe can be simultaneously facilitated with a human finger.

  Hereinafter, embodiments (examples) of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of the protective tube connector according to the present invention. (A) is a plan view thereof, (b) is a front view thereof, (c) is a side view thereof, and (d) is a side view thereof. AA sectional drawing, (e) is the perspective view, (f) is an enlarged detail drawing of the elastic latching operation part of (d).

  This protective tube connector 5 has a cylindrical shape provided at both ends with a connecting portion 2 for connecting a corrugated protective tube in which wiring / piping material is disposed, and the connecting portion 2 extends along the wall surface. A plurality of receiving ports 1 are provided in parallel so that a plurality of protective tubes piped in parallel can be connected in parallel.

  Further, between at least two adjacent receptacles 1 of the protective tube connector 5 in parallel, there is a connecting portion insertion space 2a that can receive the connecting portion of the double protective tube connected by the connecting portion along the axial direction. Is formed.

  Further, the protective tube connector 5 is engaged by an operation from the outside of the receiving port 1 and a locking portion 3a that locks the protective tube inserted into the receiving port 1 to prevent the protective tube from coming off. An elastic locking operation part 3 having a release operation part 3b for releasing the locking to the protective tube by moving the stopping part 3a outward of the receiving port 1 is provided.

  In such a configuration, as shown in FIG. 1 (c), this protective tube connector 5 has at least the release operation portion 3 b at a position other than the wall surface W side of the connection portion 2, more specifically, a wall surface. It is characterized by being disposed opposite to the position parallel to W.

  The inner diameters of the plurality of receiving ports 1 correspond to the outer diameter of the corrugated protective tube, and these are arranged in parallel to form the connecting port 2, so that the connecting port 2 includes a plurality of protective tubes arranged in parallel. Accept as it is and connect.

  This plurality means two or more rows, and the connection port 2 of the connector 5 is for two rows, but may be for three rows or more.

  Since there is a connecting portion insertion space 2a between the receiving ports 1 of the connecting port 2, the connecting port 2 can accept and connect even if it is a dual protection tube connected by the connecting portion. Also in this case, the number of columns may be any number as long as it is two or more.

  However, since the connecting portion insertion space 2a is provided between the adjacent receiving ports 1, when the receiving port 1 has three rows, the connecting portion insertion space 2a has two locations, and when the receiving port 1 has four rows, the connecting portion insertion space 2a. Are installed in three places.

  As shown in FIG. 1 (f), the locking portion 3 a of the elastic locking operation portion 3 is provided with a corrugated protective tube at a tip of a beam portion 3 c formed in a cantilever state on a part of the peripheral wall of the receiving port 1. A protrusion 3d is provided so as to enter the trough on the outer periphery of the.

  The projection 3d is inserted into the protective tube insertion side in contact with a crest on the outer periphery of the waved protective tube to be inserted to bend the beam portion 3c within the elastic deformation range, and the projection 3d is received in the receiving port 1. The insertion guide 3e is moved outward.

  Even if the opposite side of the protrusion 3d to the protective tube insertion side is pressed in contact with the crest of the outer periphery of the corrugated protective tube to be extracted, no force is generated to bend the beam portion 3c. Thus, the extraction preventing portion 3f is maintained so as to maintain the state of the protrusion 3d entering the valley.

  On the inner side of the base end side of the beam portion 3c, a bending recess 3g that makes the beam portion 3c more flexible is provided. The bending concave portion 3g is easy to bend when the beam portion 3c is bent to the inside of the receiving port 1 or to the outside. The function to perform is demonstrated more greatly.

  The release operation portion 3b has a beam shape extending longer and away from the beam portion 3c in the base direction from the tip of the beam portion 3c of the locking portion 3a.

  Therefore, when the release operation portion 3b is pressed to the receiving port 1 side with the hand, the distal end side of the beam portion 3c of the locking portion 3a is bent outwardly within the elastic deformation range of the receiving port 1, and the protruding portion of the locking portion 3a The locking between 3d and the outer periphery of the corrugated protective tube that has been inserted can be released.

  The protective tube connector 5 is arranged at a position between the receiving ports 1 of the protective tube connector 5 provided in parallel with the connecting port 2 composed of the parallel receiving ports 1 at the center of the connection ports 2 on both sides. An attachment hole 5a for attaching to a wall surface or the like is provided therethrough.

  As shown in FIGS. 1C and 1E, the attachment hole 5a can be connected to a corrugated protective tube even when a fixing screw or the like is inserted therein and the protective tube connector 5 is fixed to the wall surface W. This will not hinder the disconnection.

  A central partition projection 5b that comes into contact with the outer peripheral side of the inserted protective tube is provided at a position that is the center of the inner peripheral wall of the opposing connection port 2 to prevent further insertion of the protective tube. The central partition projection 5b does not interfere with the insertion of the wiring / pipe material that is passed through the protective tube.

  The material of the protective tube connector 5 is preferably a flexible synthetic resin with good moldability, for example, an ABS (acrylonitrile butadiene styrene copolymer) resin.

  In particular, when a flame-retardant ABS resin is used as the material, it is possible to prevent the protected internal wiring / piping material from being affected by the fire in the event of a fire or the like.

  Further, since this ABS resin has appropriate mechanical strength and flexibility, the function of the elastic locking operation part 3 for achieving locking and unlocking of the protective tube inserted by the elasticity of the material is suitable. Guarantee that it will be demonstrated.

  From this, the usage method of the protection pipe connector 5 of the above structures, ie, the connection method which connects the double protection pipe WP using the protection pipe connector 5, is demonstrated.

  FIGS. 2A and 2B illustrate a method of using the protective tube connector of FIG. 1, wherein FIG. 2A is a perspective view showing a state before connection, and FIG. 2B is a state in which a duplex protective tube is inserted into the protective tube connector. (C) is sectional drawing which shows the state which the elastic latching operation part is bent by the double protection tube inserted further from (b).

  FIG. 3 is a cross-sectional view illustrating a method of using the protective tube connector following FIG. 1, wherein (a) is a cross-sectional view showing a state in which the double-type protective tube that has been inserted is prevented from being detached by the protective tube connector. FIG. 4B is a cross-sectional view showing a state where the elastic locking operation portion is released and the double protection tube is about to be extracted.

  Accordingly, the same parts as those already described are denoted by the same reference numerals and redundant description is omitted.

  First, as shown in FIG. 2A, the protection tube connector 5 and the duplex protection tube WP are in a state of being close to each other along the wall surface W.

  Next, the duplex protection tube WP is inserted into the connection portion 2 of the protection tube connector 5 so that each of the corrugated protection tubes WPa of the duplex protection tube WP enters each receiving port 1 of the connection portion 2.

  At this time, since the connecting portion 2 is provided with the connecting portion insertion space 2, the double protective tube WP having the connecting portion PA can be inserted without any trouble, and the state shown in FIG.

  In the state of FIG. 2B, the distal end portion of the inserted double protection tube WP is in a state of approaching the protrusion 3 d of the locking portion 3 a that constitutes the elastic locking operation portion 3 of the protection tube connector 5. ing.

  Here, when the double protection tube WP is grasped with the hand H and further pushed in, as shown in FIG. 2 (c), the mountain side surface of the outer periphery of the distal end of the double protection tube WP is the insertion guide portion of the locking portion 3a. 3e is brought into contact, whereby the locking portion 3a of the elastic locking operation portion 3 is bent toward the outside of the receiving port 1.

  Here, when the duplex protection tube WP is further pushed in, the protrusion 3d of the locking portion 3a of the elastic locking operation portion 3 sequentially goes over the mountain portion on the outer periphery of the distal end of the duplex protection tube WP, and the duplex protection tube WP The tip outer peripheral side surface reaches a position where it contacts the central partition projection 5b of the protective tube connector 5.

  Here, when the hand H is released, as shown in FIG. 3A, the protruding portion 3d of the locking portion 3a of the elastic locking operation portion 3 enters the nearest valley portion of the double protection pipe WP.

  In this connection process, even if the protective tube connector 5 is fixed to the wall surface W by the attachment hole 5a, the connection of the double protective tube WP is not hindered.

  In this state, even if an attempt is made to pull out the dual protection tube WP, the pull-out preventing portion 3f of the elastic locking operation portion 3 prevents the pull-out, and therefore cannot be pulled out.

  On the other hand, when the release operation portion 3b of the elastic locking operation portion 3 is pressed with the hand H, as shown in FIG. 3B, the locking portion 3a is bent to the outside of the receiving port 1, and the protrusion 3d at the tip thereof is It comes to be located outside the outer periphery of the duplex protection tube WP, and the duplex protection tube WP can be easily extracted, that is, disconnected.

  At this time, if at least the release operation part 3b is in the direction in which the duplex protection pipes WP are arranged in parallel, that is, if the duplex protection pipe WP and the protection pipe connector 5 that connects this are in contact with the wall surface, Since it is provided at a position other than the W side (see FIG. 1C), the wall surface does not become an obstacle to the release operation.

  Thus, according to the protective tube connector 5, the multiple protective tubes WP disposed along the wall or the like can be suitably connected and easily disconnected.

  Here, the connection portion 2 of the protective tube connector 5 can be connected not only to the double protection tube WP connected by the connection portion PA but also to a single waved protection tube WPa, as well as to each receiving port 1. The above effect is also exhibited when a single waved protective tube WPa is connected.

  At this time, since the elastic locking operation portion 3 is provided so that the protection tube can be released for each receiving port 1, when connecting a single wave protection tube WPa, The connection of the protection tube WPa can be released in one receiving port unit.

  Further, in this protective tube connector 5, two receptacles 1 are provided in parallel, and the elastic locking operation part 3 is provided facing the outside of these receptacles 1 so that it can be operated with one hand. Therefore, the connection can be easily released with one hand at two places simultaneously.

  FIGS. 4A, 4B, 4C, and 4D are a plan view and a side view showing another example of the protective tube connector of the present invention.

  The protective tube connector 5A shown in FIGS. 4 (a) and 4 (b) is different from the protective tube connector 5 of FIG. The difference is that it is provided on the opposite side of the contacting wall surface W (see FIG. 4B).

  That is, in this protective tube connector 5A, two receptacles 1 are provided in parallel, and the elastic locking operation portion 3A is opposite to the wall W side of these receptacles 1 so that it can be operated with one hand. Is provided.

  According to the protective tube connector 5A having such a configuration, as is apparent from the above description, the connection release operation at two places adjacent to the connected protective tube with the protective tube connector 5A installed on the wall surface. Can be facilitated simultaneously with one hand.

  In addition, when the number of the parallel rows of the receptacles 1 is 3 or more, it is preferable that the receptacles 1 are provided on the side opposite to the wall surface W side of the parallel receptacles 1 as in this example.

  The protective tube connector 5A shown in FIGS. 4 (c) and 4 (d) has two elastic locking operation portions provided in the connection portion 2 as compared with the protective tube connector 5A of FIGS. 4 (a) and 4 (b). 3B is common in that it is provided on the opposite side of the wall surface W (see FIG. 4 (b)) with which the connecting portion 2 comes into contact, but the release operation portion 3b ′ of this elastic locking operation portion 3B is adjacent to the side wall W (see FIG. 4B). The difference is that an overhanging portion 3h that protrudes toward the corresponding release operation portion 3b 'is provided.

  The adjacent projecting portions 3h are close to each other, and the two adjacent projecting portions 3h can be operated simultaneously with a human finger.

  That is, in this protective tube connector 5B, the two elastic locking operation portions 3B are provided close to each other and can be operated simultaneously with a human finger.

  According to the protective tube connector 5B having such a configuration, as is apparent from the above description, in the state where the protective tube connector 5B is installed on the wall surface, two adjacent connection release operations of the connected protective tube are performed. Can be facilitated simultaneously with a human finger.

  In addition, the position other than the wall surface side of the connection portion referred to in the present invention includes any position away from the wall surface where the connection portion contacts, and sandwiches the connection portion such as the protective tube connector 5 in FIG. The concept includes a position parallel to the wall surface and a position on the opposite side of the wall surface with the connecting portion sandwiched between the protective tube connectors 5A and 5B in FIG.

  Further, the protective tube connector of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope of the claims and the scope of the embodiments. The technical scope includes these modifications and combinations.

  The protective tube connector of the present invention can be used in industrial fields where it is required to suitably connect and easily disconnect multiple protective tubes arranged along a wall or the like.

It shows an example of the protective tube connector of the present invention, (a) is a plan view thereof, (b) is a front view thereof, (c) is a side view thereof, (d) is a sectional view taken along AA in (b), (E) is the perspective view, (f) is an enlarged detail view of the elastic locking operation part of (d). 1A and 1B are diagrams illustrating a method of using the protective tube connector of FIG. 1, in which FIG. 1A is a perspective view showing a state before connection, and FIG. (C) is sectional drawing which shows the state in which the elastic latching operation part is bent by the duplex protection tube further inserted from (b) FIG. 1 is a cross-sectional view illustrating a method of using the protective tube connector following FIG. 1, wherein (a) is a cross-sectional view showing a state in which the double-type protective tube that has been inserted is prevented from being detached by the protective tube connector; ) Is a sectional view showing a state in which the elastic locking operation part is released and the double protection tube is being pulled out. (A), (b), (c), (d) is a plan view and a side view showing another example of the protective tube connector of the present invention. The perspective view which shows the use condition of the protective pipe connector used as the background art of this invention

Explanation of symbols

1 Reception
2 Connection portion 2a Connection portion insertion space 3 to 3B Elastic locking operation portion 3a Locking portion 3b Release operation portion 5 to 5B Protection tube connector WP Duplex protection tube (protection tube with wave)
PA connecting part

Claims (5)

A tubular protective tube connector provided at both ends with a connecting portion for connecting a corrugated protective tube in which wiring and piping materials are arranged,
The connection portion is provided with a plurality of receiving ports in parallel so that a plurality of protective pipes piped in parallel along the wall surface can be connected in parallel.
Between the at least two adjacent receiving ports arranged in parallel, a connecting portion insertion space is formed that can receive the connecting portion of the dual protection tube connected by the connecting portion along the axial direction,
A locking portion that locks to the outer surface of the protective tube inserted into the receiving port and prevents the protective tube from coming off, and the locking portion is moved outward by the operation from the outside of the receiving port. An elastic locking operation part having a release operation part for releasing the locking to the protective tube,
At least the release operation part is arranged at a position other than the wall surface side of the connection part.   2. The protective tube connector according to claim 1, wherein the elastic locking operation portion is provided so as to enable a release operation of the protective tube for each receiving port.   3. The receiving port is provided in parallel, and the elastic locking operation part is provided facing the outside of the receiving port so that it can be operated with one hand. Protective tube fittings.   3. The receiving port is provided in parallel, and the elastic locking operation part is provided on the opposite side of the wall surface side of these receiving ports so that it can be operated with one hand. The protective tube connector described.   The protective tube connector according to claim 4, wherein the two elastic locking operation portions are provided close to each other and can be simultaneously operated by a human finger.

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