JP2004166336A - Lock structure for wire harness sheath material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock structure for a wire harness sheath material in which the lock can be released easily but can not be released of its own accord usually. <P>SOLUTION: In this lock structure for a wire harness sheath material, a wire harness is passed into the sheath material consisting of the main body and a cover, and a lock piece projected toward the main body from the cover is inserted and locked in a lock frame projected from the main body. A lock claw is projected from the external surface of the lock piece, and an inclined surface facing the tip of the lock piece from the locking topside of lock claw is provided with a recess for unlocking. In lock state that the lock piece is inserted into the lock frame and the locking topside is locked on the downside of the lock frame, a tool is inserted into the recess for unlocking, and the lock piece is pushed in to detach the locking topside from the downside of the lock frame to unlock it. Furthermore, the locking topside of the lock claw for locking and the downside of the lock frame are made tapered faces inclined downward and inward, and the tapered faces are abutted against each other for locking. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lock structure of a wire harness exterior material, and more particularly, to a structure in which a jig can be used to easily unlock a lid when a lid locked and connected to a main body needs to be opened.
[0002]
[Prior art]
Conventionally, as shown in FIG. 7, a protector 1 including a gutter-shaped protector main body 2 and a lid 3 for closing an upper surface opening of the protector main body 2 is a protector for inserting a wire harness arranged in an automobile. The protector main body 2 and the lid 3 are locked by inserting and locking a lock piece 3a protruding from the lid 3 into a lock frame 2a protruding from the outer surface of the side wall.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-032628
[Problems to be solved by the invention]
However, in the case of the protector 1, if the protector main body 2 and the cover 3 are once locked and connected, the cover 3 is opened and redo, for example, when there is an erroneously wired wire in the wire group constituting the wire harness. When the need arises, the lock cannot be easily released by the jig, and the lock portion is damaged, so that there is a problem that the protector must be replaced. Further, even if the lock can be released without being damaged, there is a problem that it takes a long time to release the lock and the workability is not good.
[0005]
The present invention has been made in view of the above problems, and provides a lock structure of a wire harness exterior material that can easily unlock the wire harness exterior material and that is not inadvertently unlocked at normal times. That is the task.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention provides a resin molded article having a wire harness inserted into an exterior material composed of a body and a lid, and protruding from the lid toward the outer surface of the body through a lock frame projecting from the outer surface of the body. A lock structure of a wire harness exterior material for inserting and locking the provided lock piece,
A lock claw is protruded from the outer surface of the lock piece, and a recess for unlocking is provided on an inclined surface facing the tip of the lock piece from the locking upper surface of the lock claw,
In the locked state in which the lock piece is inserted into the lock frame and the locking upper surface is locked to the lower surface of the lock frame, a jig is inserted into the lock release recess, and the lock piece is pushed inward to lock the lock. The upper surface is separated from the lower surface of the lock frame so that the lock can be released, and
The locking upper surface of the lock claw to be locked and the lower surface of the lock frame are tapered surfaces inclined downward inward, and the locking structure of the wire harness exterior material is configured to lock by contacting the tapered surfaces. providing.
[0007]
With the above configuration, when the jig is inserted into the concave portion provided on the inclined surface of the lock claw, the lock piece is pushed inward, and the locking upper surface is disengaged from the lower surface of the lock frame, so that the lock can be easily released. Thus, the lock release operation can be performed efficiently, and the lock piece and the lock frame are not damaged by the release operation, so that the cost can be reduced.
In addition, the locking upper surface of the lock claw and the lower surface of the lock frame are tapered surfaces inclined downward inward, and the tapered surfaces are abutted and locked. It will not be released.
[0008]
The lock piece and the lock frame are horizontally long, and the lock piece is vertically long so as to be easily bent, and a cut is made upward from a lower end of the lock piece to divide the lock piece into three parts, and the center part is divided. While the lock claw and the unlocking concave portion are provided on one piece,
A concave portion for releasing the lock piece at the time of unlocking is provided in a portion of the outer surface of the main body surrounded by the lock frame facing the central split piece.
[0009]
The lock piece is vertically long so that the lock piece is easily bent when the lock is released, while the lock piece and the lock frame are horizontally long so that the lock coupling force does not decrease. In addition, a cut is made upward from the lower end of the lock piece to divide the lock piece into three, and the center split piece is provided with the lock claw and the unlocking concave portion so that the center split piece is easily bent. The lock can be easily released.
Also, since a concave portion for locking piece escape is provided at a portion of the outer surface of the main body surrounded by the lock frame facing the central split piece at the time of unlocking, the central split piece is pushed into the main body side to be bent. In this case, the lock can be released by easily bending the central divided piece without the main body being in the way.
[0010]
Examples of the exterior material of the wire harness include a protector for inserting the wire harness, a corrugated clamp for exteriorly attaching the wire harness to a corrugated tube which is passed through the wire harness, and the like.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 5 show a first embodiment of the present invention. A protector 10 includes a protector body 11 and a lid 12 integrally formed at a tip of one side wall of the protector body 11 via a thin hinge 13. .
[0012]
The protector main body 11 has a gutter shape including a bottom wall 11a and side walls 11b and 11c. A horizontally long lock frame 11d protrudes from an outer surface 11b-1 of one of the side wall portions 11b of the protector body 11, and as shown in FIGS. 2A and 2C, a divided piece 12a- The lock surface 11d-1 of the lock frame 11d that locks with the lock claw 12a-4 protruding from the first lock member 1 is formed as a tapered surface inclined downward inward. In the side wall 11b at the center position in the width direction of the lock frame 11d, a recess 11b-2 for locking piece escape is provided below the lock frame 11d from the upper end of the side wall 11b.
[0013]
Further, a lid 12 for closing the upper opening of the protector main body 11 is formed integrally with the upper end of the other side wall portion 11c of the protector main body 11 via the thin hinge 13 described above. A vertically long lock piece 12a protrudes from the lid 12 at a position facing a lock frame 11d provided on the protector body 11, and as shown in FIG. Is divided into three into a divided piece 12a-1 and divided pieces 12a-2 and 12a-3 on both sides. A lock claw 12a-4 is protruded from the tip of the center split piece 12a-1 and a lock release recess 12a is formed on an inclined surface from the locking surface 12a-6 of the lock claw 12a-4 toward the lock piece tip. -5 is provided. The locking surface 12a-6 of the lock claw 12a-4 that locks to the locking surface 11d-1 of the lock frame 11d is a tapered surface that is inclined inward and downward in the same manner as the locking surface 11d-1. .
[0014]
As shown in FIG. 4, the lock connection between the protector main body 11 and the lid 12 is performed by rotating the lid 12 toward the protector main body 11 and inserting the lock piece 12 a of the lid 12 into the lock frame 11 d of the protector main body 11. The locking is performed by locking the locking surface 12a-6 of the lock claw 12a-4 projecting from the center divided piece 12a-1 to the locking surface 11d-1 of the lock frame 11d.
[0015]
Next, a method of releasing the lock connection between the protector body 11 and the lid 12 will be described.
As shown in FIG. 5, the lock provided on the inclined surface of the lock claw 12a-4 in a state where the lock surface 12a-6 of the lock claw 12a-4 and the lock surface 11d-1 of the lock frame 11d are locked to each other. The jig 20 is inserted into the release concave portion 12a-5, and the central divided piece 12a-1 is pushed into the lock piece escape concave portion 11b-2 provided on the side wall portion 11b of the protector body 11 to release the lock. I have.
[0016]
With the above configuration, when the jig 20 is inserted into the concave portion 12a-5 provided on the inclined surface of the central divided piece 12a-1, the lock provided with the central divided piece 12a-1 on the side wall 11b of the protector body 11 is formed. The locking surface 12a-6 of the lock claw 12a-4 is disengaged from the locking surface 11d-1 of the lock frame 11d by being pushed into the one-side recess 11b-2, so that the lock can be easily released. Thereby, the lock release operation can be performed efficiently, and the lock piece 12a and the lock frame 11d are not damaged by the release operation.
Further, the locking surface 12a-6 of the lock claw 12a-4 and the locking surface 11d-1 of the lock frame 11d are tapered surfaces inclined downward inward, and the tapered surfaces are brought into contact with each other for locking. Therefore, the lock is not released by the vibration of the automobile or the like in the normal state.
[0017]
The lock piece 12a is vertically long so that the lock piece 12a is easily bent when releasing the lock, while the lock piece 12a and the lock frame 11d are horizontally long so that the lock coupling force does not decrease. Also, the lock piece 12a is divided into three parts, and the center divided piece 12a-1 is provided with a lock claw 12a-4 and a lock release concave part 12a-5, so that the central divided piece 12a-4 is easily bent. , Can be easily unlocked.
[0018]
Note that the protector body and the lid are not limited to an integrally molded product via a thin hinge, and may be separate bodies. In this case, the lock structure is provided on both side walls.
[0019]
FIG. 6 shows a second embodiment of the present invention, in which a corrugated clamp 30 is used to lock a corrugated tube (not shown) provided on a wire harness to a vehicle body panel at a required position.
[0020]
The corrugated clamp 30 includes a pair of mounting portions 30b and 30c via a thin hinge 30a. The lower mounting portion 30b functions as a main body for holding the corrugated tube, and the upper mounting portion 30c functions as a lid.
A claw 30d that fits into a valley of the corrugated tube protrudes from an inner peripheral surface formed of a semicircular concave portion of each of the mounting portions 30b and 30c. Further, a lock piece 30e and a lock frame 30f similar to those in the first embodiment are protruded from the distal ends of the tube mounting portions 30b and 30c, and the lock piece 30e is inserted and locked in the lock frame 30f in a state of being fitted to the corrugated tube. Configuration. The outer surface of the one tube mounting portion 30c is flat, and an H-groove-shaped tab insertion port 30g is provided, and a tab (not shown) projecting from the vehicle body panel is inserted into the tab insertion port 30g, and the To be locked.
[0021]
With the above configuration, when it is necessary to remove the corrugated clamp 30 from the corrugated tube when the mounting position of the corrugated clamp 30 is mistaken, the lock can be easily released by the jig as in the first embodiment. Can be.
[0022]
【The invention's effect】
As is clear from the above description, according to the present invention, the lock claw is locked in a state where the lock upper surface of the lock claw protruding from the lock piece provided on the lid is locked on the lower surface of the lock frame provided on the protector body. When the jig is inserted into the concave portion provided on the inclined surface, the lock piece is pushed inward and the locking upper surface is disengaged from the lower surface of the lock frame, so that the lock can be easily released. Thus, the lock release operation can be performed efficiently, and the cost can be reduced without damaging the lock pieces and the lock frame due to the release operation.
In addition, the locking upper surface of the lock claw and the lower surface of the lock frame are tapered surfaces inclined downward inward, and the tapered surfaces are abutted and locked. It will not be released.
[0023]
The lock piece is vertically long so that the lock piece is easily bent when releasing the lock, while the lock piece and the lock frame are horizontally long, so that the lock coupling force does not decrease. In addition, a cut is made upward from the lower end of the lock piece to divide the lock piece into three, and the center split piece is provided with the lock claw and the unlocking concave portion so that the center split piece is easily bent. The lock can be easily released.
In addition, since a concave portion for locking piece escape is provided at a portion of the outer surface of the main body surrounded by the lock frame opposite to the central split piece at the time of unlocking, the central split piece is pushed into the main body side to lock. At the time of release, the lock can be released by easily bending the central divided piece without the main body being in the way.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a protector according to a first embodiment.
2A and 2B show a lock frame of the protector body, wherein FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a sectional view taken along line I1-I1.
3A and 3B show lock pieces of a lid, wherein FIG. 3A is a front view, and FIG. 3B is a sectional view taken along line I2-I2.
4A and 4B show a state in which a lock piece is locked to a lock frame, wherein FIG. 4A is a perspective view, FIG. 4B is a front view, and FIG. 4C is a sectional view taken along line I3-I3.
FIG. 5A is a drawing showing a method for releasing the lock of a lock piece and a lock frame, and FIG. 5B is a cross-sectional view showing a state where the lock is released.
FIG. 6 is a perspective view showing a corrugated clamp according to a second embodiment.
FIG. 7 is a drawing showing a conventional example.
[Explanation of symbols]
Reference Signs List 10 protector 11 protector body 11b-2 recess for locking piece escape 11d locking frame 11d-1 locking surface 12 lid 12a locking piece 12a-1 central split piece 12a-4 locking claw 12a-5 unlocking recess 12a- 6 Locking surface 20 Jig 30 Corrugated clamp 30e Lock piece 30f Lock frame

Claims (3)

A wire harness that penetrates a wire harness through an exterior material composed of a resin molded article main body and a lid, and inserts and locks a lock piece protruding from the lid toward the main body outer surface side into a lock frame protruding from the outer surface of the main body. The lock structure of the exterior material,
A lock claw is protruded from the outer surface of the lock piece, and a recess for unlocking is provided on an inclined surface facing the tip of the lock piece from the locking upper surface of the lock claw,
In the locked state in which the lock piece is inserted into the lock frame and the locking upper surface is locked to the lower surface of the lock frame, a jig is inserted into the lock release recess, and the lock piece is pushed inward to lock the lock. The upper surface is separated from the lower surface of the lock frame so that the lock can be released, and
A lock structure for a wire harness exterior material, wherein a lock upper surface of the lock claw to be locked and a lower surface of the lock frame are tapered surfaces inclined downward inward, and the taper surfaces are brought into contact to lock. The lock piece and the lock frame are horizontally long, and the lock piece is vertically long so as to be easily bent, and a cut is made upward from the lower end of the lock piece to divide the lock piece into three parts, and the center piece is divided into three parts. While providing the lock claw and the concave portion for unlocking,
2. The lock structure according to claim 1, wherein a concave portion for releasing the lock piece at the time of unlocking is provided in a portion of the outer surface of the main body surrounded by the lock frame facing the central split piece. The wire harness exterior material according to claim 1 or 2, wherein the exterior material of the wire harness is a protector that penetrates the wire harness or a corrugate clamp that is exteriorly mounted on a corrugated tube that passes through the wire harness so as to be engaged with a vehicle body. Lock structure.

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