JPH0515611U - Corrugated tube mounting jig - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention aims to improve the workability of the mounting while ensuring the degree of freedom in mounting the corrugated tube to the electric wire bundle. According to the present invention, a main body having a U-shaped cross section, a rod-shaped handle extending downward from a bottom of the main body, and a bottom of the main body and a corrugated tube are integrally provided in the handle with a space therebetween. It is composed of a guide.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a corrugated flexible corrugated tube mounting jig for protecting electric wires or electric wire bundles used in automobiles and the like.

[0002]

[Prior Art]

 The corrugated tube is made of synthetic resin or the like into a long corrugated or bellows shape, and is also called a protective tube. It is attached so as to cover the electric wire bundle (including electric wires) and has a role of protecting the internal electric wire bundle. Carry. A conventional mounting method of this corrugated tube will be described with reference to FIGS. A corrugated tube (hereinafter also referred to as a tube) 1 has a slit-shaped split groove 5 on the bottom surface, and a supporting jig (a wiring jig or a connecting jig may be used) with the slit groove 5 stretched linearly. To attach to the wire bundle 2 placed on the cable 3 (this wire bundle 2 is bundled with a bundling tool 6 in some places), first bend the tube 1 and spread the right end of the tube 1 with the split groove 5 and then from above. Push the wire bundle 2 into the right end of the tube 1 as shown in FIG. The tube 1 is closed by its own elasticity. Then, the tube 1 is sequentially pressed from the upper surface in the longitudinal direction (indicated by the arrow X). At this time, the worker directly pushes by hand or indirectly by using the pushing jig 4. By this pressing, the tube 1 having the split groove 5 open to the front of the center line 0-0 of the electric wire bundle 2 in FIG. 11 opens as the force is applied and closes when the maximum opening is exceeded, and finally the complete close of FIG. It becomes the state of. Further, the tube 1 in the portion of the split groove 5 having a small opening in FIG. 12 expands to the state of the maximum opening in FIG. 11, and then is closed in the same manner as described above. Finally, the long tube 1 is finally attached to the wire bundle 2 over the entire length. In the wire bundle 2, the corrugated tube 1 is attached to the portion that needs protection in this way, and the wire is wound with a tape and the split groove portion is closed to be wired to an automobile body or the like.

By the way, conventionally, various attachment jigs or working tools have been proposed in order to prevent the trouble of opening the split groove when attaching the corrugated tube to the electric wire bundle (for example, Japanese Utility Model Laid-Open No. 5-152015). See Japanese Utility Model Laid-Open No. 62-188924). This is a guide part that receives the wire bundle and the corrugated tube so as to intersect each other at an obtuse angle, and sends the wire bundle concentrically so that the wire bundle is in the center. Is a guide member crossing type jig having a wedge-shaped expanding portion. By using such a jig, the corrugated tube can be easily attached to the wire bundle without the complexity of manually expanding the split groove.

[0004]

[Problems to be solved by the device]

 However, these conventional mounting methods or mounting jigs have the following problems.

That is, the former (the pressing method shown in FIGS. 9 to 12) is said to be capable of mounting a tube at a desired position and length on a wiring jig (connecting shaft or supporting jig). Although there are advantages, the pressing force in the longitudinal part of the mounting range (whether this pressing force is direct or through a jig, does not change). Since it is performed by expanding the split groove according to (No), it is difficult for the force to be applied uniformly over the entire length, and therefore the worker has to consider how to apply the force and the workability is not good. was there.

In the latter method using the guide member crossing type jig, the corrugated tube and the wire bundle must be supplied at the same time when the mounting work is started, and the work must be completed at the same time. There was a problem that it was not possible to attach it to the wire bundle that was stretched in advance on the tool, and the flexibility of tube attachment was not good.

Therefore, the present invention aims to solve the above-mentioned problems by providing a corrugated tube mounting jig that secures the degree of freedom in mounting the corrugated tube and improves the workability of mounting. I am trying.

[0008]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a main body having a U-shaped cross section, a bar-shaped handle extending downward from the bottom of the main body, and a handle of the main body. The guide is integrated with the bottom and the corrugated tube with a space that allows insertion.

[0009]

[Action]

 The U-shaped body of the mounting jig is lifted from below the bundle of wires at the tube mounting start position on the support shaft, and the bundle of wires at that position is inserted into the U-shaped inner surface. Next, unfold the split groove at the tube's mounting opening end with your hand and cover it with the U-shaped body so that the outer surface of the tube is wrapped around the split groove so that the split groove is closed. In this state, holding the handle of the mounting jig by hand and moving it toward the other end in the longitudinal direction of the tube, the split groove of the tube is expanded by the U-shaped outer surface of the jig body, and the electric wire by the inner surface. The bundle is guided, and the downward movement of the tube is suppressed by the guide, and the split groove expands at the point where the mounting jig advances, and at the same time, the split groove closes one after another. Finally, the tube will be attached to the wire bundle so that it covers the entire length.

Expansion of the tube split groove is performed on the U-shaped outer surface of the jig body as the jig is advanced by hand, and this outer surface is the same in the longitudinal direction and does not change, so work is stable. In addition, since the force and direction of the progress can be freely adjusted, the progress work can be facilitated and the workability can be improved.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. First, the configuration will be described with reference to FIG. 1 is a corrugated tube (also abbreviated as a tube as described above), 2 is a wire bundle, which are conventional. The mounting jig 10 is made of a metal material such as iron or a copper alloy, and has a curved-body-shaped main body 11 having a U-shaped cross section, a rod-shaped handle 12 and a horizontal plate-shaped guide 13. The main body 11 has a shallow depth toward the rear end (the direction opposite to the traveling direction X), and the upper edge 14 from the front end to the rear end is connected with a large R, where the jig 10 is in progress, The inner surface of the tube 1 is smoothly contacted so that the force is not concentrated on one point. Further, a plate-like member 15 made of a rubber material or the like having a high friction coefficient is adhered symmetrically to the tip of the lower curved portion of the outer surface of the main body 11. A bar-shaped handle 12 having a square cross section is provided integrally with the tip of the bottom portion 16 of the main body 11 and extends downward (extends in a direction perpendicular to the main body). In addition, at a certain distance (a value slightly larger than the wall thickness of the tube 1) from the bottom portion 16 of the main body 11, a space at which the corrugated tube 1 can be inserted is orthogonal to the handle 12, that is, the contact surface of the bottom portion 16. Horizontal plate-shaped guides 13 are integrally provided so as to be placed parallel to each other and project right and left.

As shown in FIG. 2, the width B, the height H and the thickness T of the U-shaped cross section of the front part of the main body 11 are set so that they can enter the annular gap between the tube 1 and the wire bundle 2. The handle 12 may have an appropriate size, and the length of the handle 12 may be an appropriate size in relation to the jig base (support base).

Next, the operation of the above embodiment will be described with reference to FIGS.

As shown in FIG. 6, when attaching the corrugated tube 1 to the wire bundle 2 stretched between the wiring jigs 3 and 3 on the support stand 17, hold the handle 12 of the jig 10 by hand. Take it over the wire bundle 2 from below. In that case, the deep front end of the U-shaped cross section of the main body 11 is directed in the traveling direction (arrow X) so that the cross section of the wire bundle 2 can be accommodated therein.

Next, as shown in FIG. 7, the corrugated tube 1 is bent and the left end thereof is covered over the storage portion. In that case, expand the split groove 5 of the tube 1. If the left end side of the split groove 5 is made wide in advance, the initial work will be easier. In this state, as shown in FIG. 2, at the left end of the tube 1, the main body 11 of the jig is fitted in the cross-sectional gap between the tube 1 and the wire bundle 2, and in front of it, as shown in FIG. The split groove 5 of the tube 1 is widened, and the electric flux 2 crosses and protrudes from the widened portion, and the split groove 5 is closed in front of it as shown in FIG.

Next, when holding the mounting jig 10 by hand and moving the lower end of the wire bundle 2 in the X direction with the lower end of the wire guide as a guide, the jig 10 operates in the same manner as a fastener, so that the tube 1 is attached to the wire bundle 2. You can That is, with the progress of the jig, the state of FIG. 5 spreads to the state of FIG. 4, and the split groove 5 of the tube 1 is further expanded from this state of FIG. As shown, the guide 13 and the lower portion of the outer surface of the U-shaped cross section of the body 11 are recessed so that the tube 1 encloses the wire bundle 2 and is attached thereto. In that case, the downward displacement of the tube 1 is prevented by the guide 13.

Further, regarding the inadvertent downward movement of the mounting jig 10, as shown in FIG. 3, the downward pulling force is exerted as a vertical pressure P between the tube 1 and the main body 11, and The frictional force F in the tangential direction acts according to the pressure P, and this frictional force F is increased by the plate-shaped member 15 having a high coefficient of friction adhered to the lower surface, so that accidental removal can be prevented. is there.

While the mounting jig 10 is moving, the upper end edge 14 of the main body 11 slides on the inner surface of the tube 1, and the end edge 14 has an arcuate shape in the front and rear low-height portions. Since it is tied with R, sliding is performed on the entire edge, and concentration of force on one place is prevented.

As described above, in this embodiment, since the attachment jig 10 is manually advanced to attach the tube 1 to the wire bundle 2, the method of applying force or the regulation or removal of the advancing direction thereof is performed. It is possible to make fine adjustments freely by the user, etc., so that the mounting work can be performed reliably and satisfactorily, and the workability is much better than the conventional pressing method without a jig. It will be.

Also, by changing the position of the handle 12 of the mounting jig 10 in the circumferential direction, the mounting direction of the tube 1 can be changed, and the mounting can be performed more freely than the conventional pressing method only below. The degree increases.

Further, the mounting jig according to this embodiment has the following advantages as compared with the conventional guide member intersecting jig.

(A) It is possible to work with the wire bundle held in a straight line, and therefore work on the connecting shaft is possible. In the conventional case, it is not possible to work on a connecting jig because it is necessary to bend the wire bundle.

(B) The mounting jig can be freely pulled out during the work, and the work can be interrupted freely. Therefore, if the installation can be done by pressing, the work can be immediately changed. In the conventional case, the work cannot be completed and the work cannot be interrupted until the wire bundle reaches the terminal.

(C) Basically, the mounting work can be performed from any position, and there is a degree of freedom. In the conventional case, work is limited to the entrance of the corrugated tube and wire bundle, and there is no freedom.

[0025]

[Effect of the device]

 As described above, according to the present invention, it is possible to obtain the effect that the workability of attaching the corrugated tube to the wire bundle can be improved while ensuring the freedom of attachment of the corrugated tube.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a cross-sectional view showing an operation of a main part of FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a cross-sectional view taken along line VV of FIG.

FIG. 6 is a side view showing a state before attachment in a view showing a work process of this embodiment.

FIG. 7 is a side view showing the initial state of mounting in the same manner.

FIG. 8 is a side view showing a state where the mounting is completed similarly.

FIG. 9 is a perspective view showing a conventional mounting method.

10 is a cross-sectional view taken along line XX of FIG.

11 is a sectional view taken along line XI-XI of FIG.

12 is a sectional view taken along line XII-XI of FIG.

[Explanation of symbols]

 1 Corrugated tube 2 Wire bundle 3 Support jig 4 Pressing jig 5 Split groove 6 Bundling tool 10 Mounting jig 11 Main body 12 Handle 13 Guide

Claims (1)

[Scope of utility model registration request] 1. A body having a U-shaped cross section, a bar-shaped handle extending downward from the bottom of the body, and a guide integrally provided in the handle with a space allowing the bottom of the body and a corrugated tube to be inserted therethrough. Corrugated tube mounting jig consisting of.