JP2007166757A - Protector and its removing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an easy-to-remove protector applied to the wiring harness for automobile. <P>SOLUTION: A substantially tubular protector 1 for inserting a wiring harness 10 comprises a hinge 5 continuous from one end 1a to the other end 1b, and a mechanism 9 for breaking that hinge 5. The breaking mechanism 9 comprises a planar cutter 11 and a doughnut-like link 12. The protector 1 can be removed easily from the wiring harness 10 by breaking the hinge 5 of the protector 1 with the hinge breaking mechanism 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a protector suitable for application to a wiring harness for automobiles and a method for removing the protector.

  FIG. 10 is a perspective view showing an example of a conventional protector, and FIG. 11 is a sectional view of the protector shown in FIG.

As shown in FIG. 10, a protector 1 is attached to this type of wiring harness 10 for the purpose of preventing interference and maintaining the shape. As shown in FIG. 11, the protector 1 has a cover 3 attached to a bowl-shaped main body 2 via a hinge 5, and two engagement claws 6 on the cover 3 side are connected to two engagement on the main body 2 side. The one provided with a lock mechanism 8 that locks the cover 3 by being inserted into the combined piece 7 is often used (for example, see Patent Document 1).
JP-A-11-205942

  However, it is necessary to remove the protector 1 from the wiring harness 10 when the automobile is disassembled or when the wiring harness 10 is repaired and replaced. For this purpose, the cover 3 must be opened after each engagement claw 6 is pulled out from each engagement piece 7 to release the locked state. Therefore, there is a problem that it takes time to remove the protector 1 from the wiring harness 10.

  An object of this invention is to provide the protector which can solve such a subject, and its removal method.

First, in the protector invention according to claim 1, the protector is a substantially cylindrical protector into which the linear body is inserted, and includes a hinge continuous from one end to the other end and a hinge breaking mechanism for breaking the hinge. It is provided.
The protector invention according to claim 2 is characterized in that the hinge breaking mechanism has a tension portion.
In the protector invention according to claim 3, the hinge breaking mechanism includes an action point portion that reaches the vicinity of the hinge, a tension portion that becomes a force point, and when the tension portion is pulled, the action point portion becomes the hinge. It has the fulcrum part which will push down.
The protector removing method according to claim 4 is a protector removing method in which a substantially cylindrical protector into which a linear body is inserted is removed from the linear body. Pulling the provided tension part, through the fulcrum part provided on the side surface, applying force to the hinge from the action point part acting on the hinge from one end to the other end, breaking the hinge and discharging An opening is formed, and the protector is removed so that the linear body comes out through the discharge opening.

According to the first aspect of the present invention, it is possible to provide a protector that can be easily detached from the linear body by breaking the hinge by the hinge breaking mechanism.
According to the invention which concerns on Claim 2 among this invention, a hinge can be easily fractured | ruptured by pulling a tension | pulling part.
According to the invention which concerns on Claim 3 among this invention, a tension | pulling part is pulled, A hinge can be easily fractured | ruptured with a weak force using the lever principle.
According to the invention which concerns on Claim 4 among this invention, the protector removal method which can remove a protector easily from a linear body can be provided by breaking the hinge of a protector.

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

  1 is a perspective view showing a first embodiment of a protector according to the present invention, FIG. 2 is a plan view of the protector shown in FIG. 1, FIG. 3 is a sectional view of the protector shown in FIG. 1, and FIG. FIG. 5 is a sectional view showing one step of the protector removing method according to the present invention, and FIG. 6 is a sectional view showing the next step of the protector removing method according to the present invention. FIG. 7 is a perspective view showing a further next step of the protector removing method according to the present invention, FIG. 8 is a cross-sectional view showing another embodiment of the protector according to the present invention, and FIG. 9 is a protector according to the present invention. It is a top view which shows other embodiment of this.

<First Embodiment>
The protector 1 is molded from a synthetic resin such as polyethylene or polypropylene into a square tube shape, and has a bowl-shaped main body 2 through which a wiring harness 10 is inserted, as shown in FIGS. 1 to 3. Yes. The main body 2 is composed of a bottom plate 2a and two side walls 2b and 2c, and an insertion opening 2d is formed at the top of the main body 2. Further, a cover 3 for opening and closing the protector 1 is attached to the insertion opening 2d of the main body 2 through a thin hinge 5 continuous from one end 1a to the other end 1b so as to be rotatable in the directions of arrows M and N. Yes.

  As shown in FIGS. 2 and 3, the protector 1 includes a lock mechanism 8, and the lock mechanism 8 includes two engagement pieces 7 and two engagement claws 6. That is, two engaging pieces 7 are arranged in parallel on the upper side of one side wall 2b, and two engaging claws 6 are arranged in parallel at the tip of the cover 3. Faces each engaging piece 7. When each engaging claw 6 is inserted into each engaging piece 7, the protector 1 is locked in a closed state, and when each engaging claw 6 is pulled out from each engaging piece 7, this locked state is released.

  Further, as shown in FIG. 2, a hinge breaking mechanism 9 is provided on the surface of the cover 3, and the hinge breaking mechanism 9 includes a flat plate cutter 11 and a donut shaped ring 12. Here, as shown in FIG. 4, the cutter 11 has a front end portion (between the front end portion 11 a and an intermediate portion 11 b retracted from the front end portion 11 a by about ¼ of the entire length) at the center of the surface of the cover 3. It is glued. The tip 11 a of the cutter 11 is formed at an acute angle and is positioned at the center of the hinge 5. A ring 12 is attached to the rear end portion 11 c of the cutter 11.

  Since the protector 1 has the above configuration, when the protector 1 is removed from the wiring harness 10 in a state where the protector 1 is attached to the wiring harness 10, the following procedure is performed.

  First, the hinge 5 of the protector 1 is broken.

  To do so, first, the ring 12 is lifted as shown in FIG. Then, because of the lever principle, the intermediate portion 11b of the cutter 11 serves as a fulcrum, the rear end portion 11c of the cutter 11 serves as a power point, and the front end portion 11a of the cutter 11 serves as an action point. 11c is pulled outward of the protector 1, and the tip 11a of the cutter 11 pushes the center of the hinge 5 inward. As a result, the tip end portion 11a perforates the central portion of the hinge 5. At this time, since the tip end portion 11a of the cutter 11 has an acute angle, the drilling operation of the hinge 5 can be performed smoothly. Further, since the ring 12 is attached to the rear end portion 11c of the cutter 11, the rear end portion 11c can be easily pulled outward even if the cutter 11 has a flat plate shape.

  Next, as shown in FIG. 6, the ring 12 is further lifted. Then, since the front end portion 11a of the cutter 11 pushes down the central portion of the hinge 5 more strongly, the hinge 5 is broken in a form of tearing over the entire length. At this time, since the hinge 5 is formed thinner than other portions, the tearing operation can be performed smoothly. As a result, as shown in FIG. 7, the side wall 2c of the main body 2 and the cover 3 are separated, and a discharge opening 4 is formed there.

  Thus, when the hinge 5 of the protector 1 is broken, the protector 1 is removed from the wiring harness 10. At this time, the wiring harness 10 is pulled out through the discharge opening 4.

  Here, the removal work of the protector 1 is completed.

  Thus, since the protector 1 can be removed from the wiring harness 10 only by breaking the hinge 5 of the protector 1, each of the engaging claws 6 must be pulled out from each engaging piece 7 to release the locked state. Compared with the method, the protector 1 can be easily detached from the wiring harness 10.

  In addition, since the lever principle is utilized, even if the tensile force of the ring 12 serving as the power point is weak, the tip portion 11a serving as the action point strongly pushes down the hinge 5, so that the hinge 5 can be easily torn.

  Further, since the cutter 11 has a flat plate shape, there is almost no protruding portion. Therefore, the protector 1 is hardly bulky because the cutter 11 is attached to the cover 3.

  Moreover, since the discharge part (discharge opening 4) of the wiring harness 10 is different from the insertion part (insertion opening 2d) of the wiring harness 10, the wiring harness 10 can be easily discharged when the lock mechanism 8 of the protector 1 is designed. Therefore, the degree of freedom in design is increased.

<Other embodiments>
In the above-described embodiment, the protector 1 in which the hinge breaking mechanism 9 is provided in the cover 3 has been described. However, the installation site of the hinge breaking mechanism 9 is not limited to the cover 3. For example, the hinge breaking mechanism 9 can be provided on the side wall 2c of the main body 2.

  In the above-described embodiment, the rectangular cylindrical protector 1 has been described, but the shape of the protector 1 may be any shape as long as it is substantially cylindrical. For example, an octagonal cylindrical shape or a cylindrical shape may be used.

  In the above-described embodiment, the flat plate-like cutter 11 has been described. However, as shown in FIG. 8, a substantially U-shaped cutter 11 can be substituted. In this case, the rear end portion 11c (leverage point) of the cutter 11 is separated from the cover 3, and a gap is formed between the two. Therefore, even if there is no ring 12, a finger can be easily inserted into this gap and hinged. 5 can be pushed down.

  In the above-described embodiment, the case where the tip 11a of the cutter 11 is positioned at the center of the hinge 5 has been described. However, as shown in FIG. 9, the cutter 11 is located near one end 1a or the other end 1b of the hinge 5. The distal end portion 11a may be positioned. In this case, since the resistance force of the hinge 5 is weakened as compared with the case where the hinge 5 is cut from the center portion, the hinge 5 can be easily cut.

  In the above-described embodiment, the case where the hinge 5 is pushed down to be broken by using the principle of the lever has been described. However, a tension portion (not shown) is attached in the vicinity of the hinge 5 and this tension is applied. The hinge 5 may be directly broken by pulling the portion outward. In this case, the hinge 5 can be easily broken.

  In the above-described embodiment, the case where the hinge breaking mechanism 9 is provided on the surface of the cover 3 has been described, but the hinge breaking mechanism 9 may be provided on the back surface of the cover 3. In this case, since the hinge breaking mechanism 9 is stored inside the protector 1, there is no protruding portion. Therefore, it becomes easy to attach the protector 1 even if the wiring space of the wiring harness 10 is narrow.

  In the above-described embodiment, the case where the protector 1 is removed from the wiring harness 10 has been described. However, the present invention can be applied to a linear body (for example, various electric wires) other than the wiring harness 10.

  The present invention can be widely applied to various industrial fields such as automobiles, airplanes, trains, manufacturing plants, electrical appliances, and OA equipment.

It is a perspective view showing a 1st embodiment of a protector concerning the present invention. It is a top view of the protector shown in FIG. It is sectional drawing of the protector shown in FIG. It is sectional drawing which shows 1 process of the removal method of the protector which concerns on this invention. It is sectional drawing which shows the next process of the removal method of the protector which concerns on this invention. It is sectional drawing which shows the further next process of the removal method of the protector which concerns on this invention. It is a perspective view which shows the further next process of the removal method of the protector which concerns on this invention. It is sectional drawing which shows other embodiment of the protector which concerns on this invention. It is a top view which shows other embodiment of the protector which concerns on this invention. It is a perspective view which shows an example of the conventional protector. It is sectional drawing of the protector shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Protector 2 ... Body 3 ... Cover 4 ... Discharge opening 5 ... Hinge 6 ... Engagement claw 7 ... Engagement piece 8 ... Lock mechanism 9 ... Hinge breaking mechanism 10 ... Wiring harness (Linear body)
11 …… Cutter 11a …… Tip (acting point)
11b …… Intermediate part (fulcrum part)
11c: Rear end (tensile part)
12 ... Ring

Claims (4)

It is a substantially cylindrical protector into which the linear body is inserted,
A hinge continuous from one end to the other;
And a hinge breaking mechanism for breaking the hinge.   The protector according to claim 1, wherein the hinge breaking mechanism has a tension portion.   The hinge breaking mechanism has an action point portion that reaches the vicinity of the hinge, a tension portion that becomes a power point, and a fulcrum portion that causes the action point portion to push down the hinge when the tension portion is pulled. The protector according to claim 1. A method of removing a protector, wherein a substantially cylindrical protector into which a linear body is inserted is removed from the linear body,
Pulling the tension part provided on the side surface of the protector and applying a force to the hinge from the action point part acting on the hinge from one end to the other end through the fulcrum part provided on the side surface, the hinge A method of removing a protector, comprising: forming a discharge opening by breaking the wire and removing the protector so that the linear body is pulled out through the discharge opening.

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