JP2012152030A - Protector for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the bite-in of an electric wire though a lock means is provided on an inner surface of a side wall of a protector body.SOLUTION: A lock projection part 14 is provided on the inner surface of one side wall 13 of a protector body 10 of a U-shaped cross section including a bottom wall 11 and a pair of side walls 12, 13, and an inclined surface 14a is provided on the upper surface of the lock projection part. A lid body 20 for closing an electric wire inserting opening 17a on the upper surface of the protector body is provided with an insertion wall 23 to which insertion is performed along the inner surface of the side wall of the protector body when the lid body is closed, and a lock recessed part 24 with which the lock projection part is to be engaged is provided on the outer surface of the insertion wall. A guiding slope 15 for guiding the insertion wall so as to be along the inner surface of the side wall when closing the lid body is provided on the upper end inner surface of the side wall of the protector body, and an inclined surface 25 to be slid with the guiding slope is provided on the lower end outer surface of the insertion wall.

Description

  The present invention relates to a protector for a wire harness.

FIG. 3 is a cross-sectional view of a conventional wire harness protector described in Patent Document 1.
This protector is made of an integrally molded product of synthetic resin, and includes a protector main body 110, a lid 120, and a lock mechanism 130. The protector main body 110 has a bottom wall 111 and a pair of side walls 112 and 113, has an upper surface opened as a wire insertion opening 117a, and has a U-shaped cross section in which the internal space is a wire receiving space 117. . The lid 120 is composed of a plate 121 that closes the electric wire insertion opening 117a on the upper surface of the protector main body 110, and is rotatable to the upper end of one side wall 112 of the protector main body 110 via a thin hinge 118. It is connected.

  A lock frame 114 projects from the outer surface of the side wall 113 opposite to the thin hinge 118 of the protector body 110. Further, at a position corresponding to the lock frame 114 of the lid 120, a lock piece 123 that is inserted into the locking hole 114a of the lock frame 114 when the lid 120 is closed is provided. At the tip of the lock piece 123, when the lock piece 123 is inserted into the lock hole 114a, there is a lock claw 124 that engages with the lower surface of the lock frame 114 and thereby locks the lid 120 in the closed position. The lock mechanism 114 is configured by the lock frame 114 and the locking claw 123.

JP 2009-171816 A

  By the way, when the lock frame 114 constituting the lock mechanism 130 projects from the outer surface of the side wall 113 of the protector body 110 as in the conventional protector of FIG. Therefore, the outer diameter of the protector is increased, and the lock frame 114 may interfere with the surrounding objects in the mounting space in relation to the surrounding space when mounted on the vehicle.

  Therefore, it is conceivable to provide the lock frame 114 on the inner surface of the side wall 113. However, there is a concern that when the lid 120 is closed, the electric wire is caught between the lock frame 114 on the protector main body 110 side and the lock piece 123 on the lid body 120 side, and the lock is not correctly performed. It was.

  Further, in the structure in which the locking piece 123 is inserted into the locking hole 114a of the lock frame 114 and the locking claw 124 is engaged, once the lock is established, it is very difficult to remove the lock, and the repair is difficult. The lock frame 114, the locking claw 124, and the like were forcibly deformed with the tool, and the lock had to be released. However, forcibly deforming the lock frame 114 or the locking claws 124 may cause unnecessary damage to the lock frame 114 or the locking claws 124, making it difficult to re-lock. .

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a means for locking the lid on the inner surface of the protector main body without providing the outer surface of the side wall of the protector body. In addition, the locking means does not interfere with the surroundings of the mounting space, and although the locking means is provided on the inner surface of the side wall, the electric wire can be prevented from being bitten and the lock can be easily released. It is in providing the protector for wire harnesses.

In order to achieve the above-described object, the wire harness protector according to the present invention is characterized by the following (1) to (3).
(1) A protector body having a U-shaped cross section having a bottom wall and a pair of side walls, the upper surface being opened as an electric wire insertion opening, and the internal space being an electric wire housing space;
A lid for closing the wire insertion opening on the upper surface of the protector body;
A locked portion provided on at least one side wall of the protector body and a lid provided on the lid body, and when the lid body is closed, engages with the locked portion to lock the lid body in a closed position. A lock mechanism composed of a lock part;
A wire harness protector comprising:
As the locked portion, a lock convex portion protruding toward the inside of the electric wire housing space is provided on the inner surface of the side wall of the protector body, and the lock convex portion is inserted into the upper surface from the wire insertion opening. Having a sloping surface for guiding the wire harness toward the center side of the electric wire housing space, and having a locking wall surface along the direction intersecting the opening / closing direction of the lid on the lower surface,
The lid body is provided with an insertion wall that is inserted along the inner surface of the side wall of the protector main body provided with the locked portion when the lid body is closed. When a lock recess that engages with the lock protrusion is provided, the inner wall of the lock recess intersects with the opening and closing direction of the lid, and the lock recess and the lock protrusion fit together A locking wall surface for locking the lid body in the opening direction by engaging with the locking wall surface is provided,
Furthermore, when the lower end of the insertion wall and the upper end of the side wall come into contact with the upper end inner surface of the side wall of the protector main body provided with the lock projection when the lid is closed, the insertion wall is brought into contact with the inner surface of the side wall. There must be a guide slope that leads along.
(2) In the wire harness protector configured as described in (1) above,
An inclined surface that slides on the guide slope of the side wall is provided on the outer surface of the lower end of the insertion wall, and the slope of the insertion wall and the guide slope of the side wall are configured as convex curved surfaces.
(3) In the protector for wire harnesses of the configuration of (1) or (2) above,
One side edge of the lid is pivotally connected to the upper edge of one side wall of the protector body via a thin hinge, the insertion wall is provided on the other side edge of the lid, and the insertion wall The lock projection is provided on the inner surface of the other side wall of the protector body corresponding to the above.

According to the protector having the above configuration (1), the lock convex portion is provided on the inner surface of the side wall of the protector body, and the lock concave portion provided on the insertion wall of the lid is engaged with the lock convex portion. As a result, a protrusion such as a lock frame does not appear on the outer surface of the side wall of the protector body, and the lock projection does not interfere with the surrounding objects in the mounting space when mounted on the vehicle. Moreover, since the inclined surface which guides the wire harness inserted from the opening for electric wire insertion toward the center side of an electric wire accommodation space is provided in the upper surface of a lock convex part, when closing a cover body, a lid body side is provided. It is possible to effectively prevent the electric wire from being caught between the insertion wall and the lock projection on the protector main body side. In addition, when the lower end of the insertion wall and the upper end of the side wall come into contact with the upper end inner surface of the side wall of the protector main body provided with the lock projection when the lid is closed, the induction is made to guide the insertion wall along the inner surface of the side wall. Since the slope is provided, the insertion wall can be smoothly guided along the inner surface of the side wall of the protector body, and the force when locking the lid can be kept small. Also, by inserting a jig into the gap between the guide slope and the insertion wall, the insertion wall and the side wall can be bent, so that the engagement of the lock convex part and the lock concave part can be easily released, The lock can be easily released as needed.
According to the protector having the above configuration (2), an inclined surface that slides on the guide slope of the side wall of the protector body is provided on the lower end outer surface of the insert wall, and the slope of the insert wall and the guide slope of the side wall are provided. Since it is configured as a convex curved surface, the sliding resistance when the lid is closed and locked can be reduced, and the lock can be easily established with a small force.
According to the protector having the configuration of (3) above, since the position of one side edge of the lid is regulated by the thin-walled hinge, the lid can be easily moved to the proper position by rotating the lid around the hinge. Can be closed and locked.

  According to the present invention, the lock projection for locking the lid is provided on the inner surface of the protector main body without being provided on the outer surface of the side wall. It will not get in the way. In addition, the top surface of the lock projection is provided with an inclined surface that guides the wire toward the center of the wire housing space, so that the lock projection is provided on the inner surface of the side wall of the protector body, but effectively prevents the wire from being caught. can do. In addition, since the guide slope that guides the insertion wall on the lid side along the inner surface of the side wall of the protector main body is provided on the upper end inner surface of the side wall of the protector main body provided with the lock protrusion, the lock can be performed smoothly. In addition, the lock can be easily released by inserting the jig into the gap between the guide slope and the insertion wall when necessary.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the protector of embodiment of this invention, (a) is a side view which shows the whole outline, (b) is an expansion perspective view of the lock convex part and lock | rock recessed part which comprise the lock mechanism of the protector, (c) is It is the perspective view seen from another direction of the lock convex part by the side of a protector body. It is operation | movement explanatory drawing of the principal part of the protector, (a) is a side cross section which shows the state which the lower end of the insertion wall of a cover body contacts the upper end of the side wall of a protector main body, and the insertion wall is being induced | guided | derived to the inner side of a side wall FIG. 4B is a side sectional view showing a state where the lock convex portion and the lock concave portion are engaged and the lid body is locked at the closed position. It is sectional drawing of the conventional protector.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of a protector according to an embodiment, (a) is a side view showing an overall outline, (b) is an enlarged perspective view of a lock convex portion and a lock concave portion constituting a lock mechanism of the protector, and (c) is a schematic view. The perspective view seen from the other direction of the lock convex part on the protector body side, FIG. 2 is an operation explanatory view of the main part of the protector, and FIG. Then, a side sectional view showing a state in which the insertion wall starts to be guided to the inside of the side wall, (b) is a side sectional view showing a state in which the lock convex portion and the lock concave portion are engaged and the lid body is locked at the closed position. FIG.

  This protector is made of an integrally molded product of synthetic resin, and includes a protector main body 10, a lid 20, and a lock mechanism 30. The protector body 10 has a bottom wall 11 and a pair of side walls 12, 13. The protector body 10 has a U-shaped cross section in which the upper surface opens as an electric wire insertion opening 17 a and the inner space serves as an electric wire accommodation space 17. . The lid 20 is composed of a plate body 21 that closes the wire insertion opening 17 a on the upper surface of the protector body 10, and is pivoted in the vertical direction to the upper end of one side wall 12 of the protector body 10 via the thin hinge 18. It is connected freely.

  On the inner surface of the side wall 13 opposite to the thin hinge 18 of the protector body 10, a lock convex portion 14 is provided. In addition, an insertion wall 23 having a lock recess 24 that engages with the lock projection 14 when the lid 20 is closed is provided at a position corresponding to the lock projection 14 of the lid 20. The lock convex portion 14 and the lock concave portion 24 constitute a lock mechanism 30.

  The lid 20 is pivotable in the vertical direction by connecting one side edge of the plate body 21 to the upper end edge of the one side wall 12 of the protector body 10 via the thin hinge 18. An insertion wall 23 is suspended from the other side edge.

  The lock protrusion 14 constituting the lock mechanism 30 is provided on the inner surface of one side wall 13 of the protector body 10 so as to protrude toward the inside of the electric wire housing space 17. An inclined surface 14a for guiding the wire harness inserted from the wire insertion opening 17a toward the center side of the wire housing space 17 is provided. A locking wall surface 14b is formed on the lower surface of the lock projection 14 along a direction intersecting the opening / closing direction of the lid 20 (the vertical direction indicated by the arrow A).

  The insertion wall 23 of the lid 20 is a portion inserted along the inner surface of the side wall 13 of the protector body 10 having the lock projection 14 when the lid 20 is closed, and the lock projection 14 is formed on the outer surface. It has a lock recess 24 to be fitted. The inner wall of the lock recess 24 intersects the opening / closing direction of the lid 20 (vertical direction indicated by arrow A), and the lock recess 24 and the lock projection 14 are engaged with each other. By engaging with the wall surface 14b, a locking wall surface 24a for locking the lid 20 in the opening direction is provided.

  Further, when the lower end of the insertion wall 23 and the upper end of the side wall 13 come into contact with the upper end inner surface of the side wall 13 of the protector main body 10 provided with the lock projection 14 when the lid 20 is closed, the insertion wall 23 is connected to the side wall 13. A guide slope 15 is provided so as to guide along the inner surface. Further, an inclined surface 25 that slides on the guide inclined surface 15 of the side wall 13 is provided on the outer surface of the lower end of the insertion wall 23. The inclined surface 25 of the insertion wall 23 and the guide inclined surface 15 of the side wall 13 are configured as convex curved surfaces.

Next, the operation will be described.
When a wire harness (not shown) is set in the protector of the present embodiment, first, the wire harness is inserted into the wire accommodating space 17 from the wire insertion opening 17a on the upper surface of the protector body 10. At that time, although the lock projection 14 protrudes on the inner surface of the side wall 13 of the protector body 10, the inclined surface 14 a is provided on the upper surface thereof, so that each wire of the wire harness can be smoothly placed inside the electric wire housing space 17. It is possible to guide, and when the lid 20 is closed, it is possible to prevent the electric wire from being caught between the lower end of the insertion wall 23 and the lock projection 14.

  Next, in this state, when the lid 20 is closed as indicated by an arrow B, the lower end of the insertion wall 23 of the lid 20 and the upper end of the side wall 13 of the protector body 10 are abutted as shown in FIG. However, since the lower end of the insertion wall 23 and the upper end of the side wall 13 are provided with an inclined surface 25 and a guide inclined surface 15 that slide on each other, the insertion wall 23 can be smoothly inserted into the side wall 13 by these guiding actions. It can be guided along the inner surface. Then, by closing the lid 20, the inclined surface 25 at the lower end of the insertion wall 23 and the inclined surface 14 a of the lock projection 14 slide, and the side wall 13, the insertion wall 23, and the like are bent accordingly. The convex portion 14 gets over the inclined wall 25 of the insertion wall 23 and engages with the lock concave portion 24. In this state, the locking wall portion 14b of the lock convex portion 14 and the locking wall portion 24a of the lock concave portion 24 are engaged, thereby locking the lid 20 in the closed position.

  Next, if it is necessary to release the lock for some reason, as shown in FIG. 2 (b), a jig is inserted into the gap S between the guide slope 15 and the insertion wall 23 at the upper end of the side wall 13 of the protector body 10, The side wall 13 and the insertion wall 23 that widen the gap S with a jig are bent. By doing so, the engagement of the lock convex portion 14 and the lock concave portion 24 can be released, and if the lid body 20 is lifted as it is, the lock body can be released and the lid body 20 can be easily opened.

  As described above, according to the protector of the present embodiment, the lock protrusion 14 is provided on the inner surface of the side wall 13 of the protector main body 10, and the lock protrusion 14 is provided with the lock provided on the insertion wall 23 of the lid 20. Since the recess 24 is configured to be engaged, a protrusion such as a lock frame does not appear on the outer surface of the side wall 13 of the protector body 10, and the lock protrusion 14 is a peripheral object in the mounting space when mounted on the vehicle. It will not get in the way.

  Moreover, since the inclined surface 14a which guides the wire harness inserted from the opening 17a for electric wire insertion toward the center side of the electric wire accommodation space 17 is provided in the upper surface of the lock | rock convex part 14, when closing the cover body 20 It is possible to prevent the electric wire from being caught between the insertion wall 23 on the lid 20 side and the lock projection 14 on the protector body 10 side.

  Further, when the lower end of the insertion wall 23 and the upper end of the side wall 13 come into contact with the inner surface of the upper end of the side wall 13 of the protector body 10 provided with the lock projections 14 when the lid body 20 is closed, the insertion wall 23 is connected to the side wall 13. Since the guide slope 15 that guides along the inner surface is provided, the insertion wall 23 can be smoothly guided to the inside of the side wall 13 of the protector body 10, and the force (insertion force) when locking the lid 20 can be obtained. It can be kept small.

  Moreover, since the insertion wall 23 and the side wall 13 can be bent by inserting a jig into the gap S between the guide slope 15 and the insertion wall 23, the engagement between the lock projection 14 and the lock recess 24 is easily released. The lid 20 can be easily unlocked as necessary.

  Moreover, the inclined surface 25 which slides with the guide slope 15 of the side wall 13 of the protector main body 10 is provided in the lower end outer surface of the insertion wall 23, and the slope 25 of the insertion wall 23 and the guide slope 15 of the side wall 13 are made into a convex curve. Therefore, the sliding resistance when the lid 20 is closed and locked can be reduced, and the lock can be easily established with a small force.

  Further, since the position of one side edge of the lid 20 is regulated by the thin hinge 18, the lid 20 is easily closed and locked at an appropriate position by rotating the lid 20 with the hinge 18 as a fulcrum. And can be handled easily.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, one side edge of the lid 20 is connected to the upper edge of one side wall 12 of the protector body 10 via the thin hinge 18, but the lid 20 is completely provided without the thin hinge 18. The insertion wall 23 and the lock recess 24 may be provided on one side edge of the lid 20, and the lock protrusion 14 may be provided on both side walls of the protector body 10.

DESCRIPTION OF SYMBOLS 10 Protector main body 11 Bottom wall 12, 13 Side wall 14 Lock convex part 14a Inclined surface 14b Locking wall part 15 Guide slope 17 Electric wire accommodation space 17a Opening for electric wire insertion 18 Thin-walled hinge 20 Lid 23 Insertion wall 24 Lock recessed part 24a Locking wall Part 25 Inclined surface 30 Lock mechanism

Claims (3)

A protector body having a U-shaped cross section having a bottom wall and a pair of side walls, the upper surface being opened as an opening for inserting an electric wire, and the internal space being an electric wire housing space;
A lid for closing the wire insertion opening on the upper surface of the protector body;
A locked portion provided on at least one side wall of the protector body and a lid provided on the lid body, and when the lid body is closed, engages with the locked portion to lock the lid body in a closed position. A lock mechanism composed of a lock part;
A wire harness protector comprising:
As the locked portion, a lock convex portion protruding toward the inside of the electric wire housing space is provided on the inner surface of the side wall of the protector body, and the lock convex portion is inserted into the upper surface from the wire insertion opening. Having a sloping surface for guiding the wire harness toward the center side of the electric wire housing space, and having a locking wall surface along the direction intersecting the opening / closing direction of the lid on the lower surface,
The lid body is provided with an insertion wall that is inserted along the inner surface of the side wall of the protector main body provided with the locked portion when the lid body is closed. When a lock recess that engages with the lock protrusion is provided, the inner wall of the lock recess intersects with the opening and closing direction of the lid, and the lock recess and the lock protrusion fit together A locking wall surface for locking the lid body in the opening direction by engaging with the locking wall surface is provided,
Furthermore, when the lower end of the insertion wall and the upper end of the side wall come into contact with the upper end inner surface of the side wall of the protector main body provided with the lock projection when the lid is closed, the insertion wall is brought into contact with the inner surface of the side wall. A protector for a wire harness, characterized in that a guide slope is provided to guide the wire along.   An inclined surface that slides on the guide slope of the side wall is provided on a lower end outer surface of the insertion wall, and the slope of the insertion wall and the guide slope of the side wall are configured as convex curved surfaces. The protector for wire harnesses of Claim 1.   One side edge of the lid is pivotally connected to the upper edge of one side wall of the protector body via a thin hinge, the insertion wall is provided on the other side edge of the lid, and the insertion wall The protector for a wire harness according to claim 1 or 2, wherein the lock convex portion is provided on an inner surface of the other side wall of the protector body corresponding to.

Images