JP2009142126A - Fixing structure of protector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure of a protector, capable of easily removing the protector. <P>SOLUTION: Arms 15 are provided on the lower end of a side wall 12 of a protector 1 so as to be horizontally extended, engaging protrusions 16 are provided on the bottom surface of the distal end of each of the arms 15, and slits 17 positioned in the same plane and simultaneously opened frontward in the rotating direction when the engaging protrusions 16 are rotated centered at an intermediate point of both the engaging protrusions 16 in a locking direction are formed on the side surface of the each of the engaging protrusions 16. On the other hand, a pair of engaging holes 51, 51 enabling both the engaging protrusions to be inserted from upward are provided on a vehicle body panel 50, and an engaging wall 51a for fitting the slits 17 in rotation of the engaging protrusions is ensured on the hole edge of each of the engaging holes 51. A convex portion 18 and a concave portion 52 mating with each other are each provided on one and the other of a surface where the engaging wall 51a face the inner wall of the slit 17. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a protector fixing structure for fixing a protector that houses a wire harness to a vehicle body panel.

  In general, when this type of protector is fixed to the vehicle body, the bracket provided on the protector is fixed to the vehicle body panel with bolts, or the anchor clip protruding from the protector is inserted into the locking hole formed on the vehicle body panel and fixed. The hook provided on the protector is fixed by inserting and engaging with a locking hole formed in the vehicle body panel.

  FIG. 6 shows a conventional protector fixing structure disclosed in Patent Document 1. In FIG.

This protector 101 has a U-shaped cross section having three outer walls 111, 112, 113, and three lock protrusions 115 inserted into the locking holes 155 of the vehicle body panel 150 are formed on the outer surface of one outer wall 111. Have. Of the three lock projections 115, the direction of the hook 115a of the lock projection 115 at both ends is opposite to the direction of the hook 115a of the center lock projection 115, and the hole on one end side of the locking hole 155 of the vehicle body panel 150. The hooks 115a facing in opposite directions are engaged with the edge and the hole edge on the other end side, so that the three lock projections 115 are prevented from coming off and the protector 101 is fixed to the vehicle body panel 150.
Japanese Patent Laid-Open No. 10-257629

  By the way, many wire harnesses are used in the vehicle, and there is a demand to be able to easily remove the wire harness for recycling when the vehicle is disassembled.

  When removing the wire harness, for example, the protector that fixes the wire harness to the vehicle body must be removed from the vehicle body. In the case of the above-described protector, the lock protrusion 115 of the protector 101 can be easily removed from the vehicle body panel 150. In order not to come off, the wire harness W had to be pulled up with a strong force while damaging the lock protrusion 115, and it was difficult to remove the wire harness W easily.

  In view of the above circumstances, an object of the present invention is to provide a protector fixing structure that can be easily detached from a vehicle body only by applying a small force that does not act during normal mounting.

  According to a first aspect of the present invention, there is provided a protector fixing structure for fixing a protector that accommodates a wire harness to a vehicle body panel, and a pair of engaging protrusions that are spaced apart from each other are provided on the outer wall of the protector. On the side surface of the protrusion, there is a slit that is located in the same plane and opens toward the front side in the rotation direction when the engagement protrusion is rotated around the intermediate point between the two engagement protrusions. On the other hand, the vehicle body panel is provided with a pair of engagement holes into which the engagement protrusions can be inserted from a direction orthogonal to the vehicle body panel, and the engagement protrusions are formed on the edge of each engagement hole. A locking wall into which the slit fits is secured when the part is rotated, and a convex part and a concave part that fit into each other are provided on one and the other of the opposing surfaces of the locking wall and the inner wall of the slit, respectively. It is characterized by that.

  The invention according to claim 2 is the protector fixing structure according to claim 1, wherein a pair of arms are projected outwardly on both sides in the width direction of the protector perpendicular to the longitudinal direction of the wire harness. And the engagement protrusions are provided on the lower surfaces of the distal ends of the arms.

  According to a third aspect of the present invention, there is provided the protector fixing structure according to the first or second aspect, wherein the engagement holes are formed so as to serve as a guide when the engagement protrusions are rotated. It is characterized in that it is formed in an arc shape centering on the middle point of the part.

  According to the first aspect of the invention, when the protector is fixed, the pair of engaging protrusions provided on the protector are inserted into the pair of locking holes of the vehicle body panel from the vertical direction, and the protector is rotated in the locking direction. Then, according to the rotation of the engaging protrusion, the slit provided on the side surface of the engaging protrusion fits into the locking wall of the hole edge of the locking hole of the vehicle body panel, and the concave portion and the convex portion fit together. Thus, the slits are prevented from coming off. Therefore, in this state, the protector can be reliably fixed to the vehicle body panel by the engaging projection.

  On the other hand, to remove the protector from this fixed state, the protector is rotated in the opposite direction. Then, the slit is detached from the engaging wall in accordance with the rotation of the engaging protrusion. In this state, the protector can be easily detached from the vehicle body panel by removing the engaging protrusion from the locking hole. Thus, when removing the protector, it is only necessary to pull up the protector while rotating the protector in a certain direction. Therefore, the protector can be easily removed with a small force.

  According to the invention of claim 2, since the engaging protrusion is provided on the lower surface of the tip of the arm projecting in the width direction of the protector, the rotation radius of the engaging protrusion can be increased, and the slit can be formed with a small rotation angle. The engagement allowance (overlapping area) of the engagement wall can be increased, and the engagement force in the direction in which the protector is lifted can be increased.

  According to the invention of claim 3, since the engaging hole is formed in an arc shape to guide the engaging protrusion, the engaging protrusion can be engaged with the engaging hole or engaged with smooth operation. You can cancel the match. Further, the protector and the vehicle body panel can be positioned reliably and easily.

  Embodiments of the present invention will be described below with reference to the drawings.

  1A is a front view of the protector according to the embodiment, FIG. 1B is a plan view of the vehicle body panel, FIG. 2 is a perspective view showing an initial state when the protector is attached to the vehicle body panel, and FIG. FIG. 4 is a perspective view showing a state where the engaging protrusion of the protector is inserted into the locking hole of the vehicle body panel from above, FIG. 4 is a perspective view showing a state where the protector is locked in the locking direction from the state of FIG. (A) is a top view at the time of a lock | rock, FIG.5 (b) is Vb-VB arrow sectional drawing of Fig.5 (a).

  As shown in FIGS. 1 and 2, the wire harness protector 1 is composed of a protector body 10 and a lid 20 both made of a resin molded product, and is configured to be attached and fixed to a vehicle body panel 50. Yes. The protector body 10 has a bottom wall 11 and left and right side walls 12, has an open top surface, and has a substantially U-shaped cross section that can accommodate the wire harness W therein. The lid body 20 is formed of the protector body 10. It covers the top opening. Lock portions 13 and 23 for fixing the lid 20 to the protector main body 10 are provided on the left and right sides of the lid 20 and the upper ends of the left and right side walls 12 of the protector main body 10.

  In addition, a pair of arms 15, 15 projecting in the left-right width direction of the protector 1 are provided at the lower ends of the left and right side walls 12 in the center portion of the protector body 10 in the longitudinal direction (the wiring direction of the wire harness W). An engaging protrusion 16 is provided on the lower surface of the distal end of the arm 15. The side surfaces of the engaging protrusions 16 are located on the same plane, and when the engaging protrusions 16 are rotated in the locking direction around the intermediate point between the two engaging protrusions 16, both are front sides in the rotational direction. A slit 17 is formed to open toward the surface.

  On the other hand, the vehicle body panel 50 is provided with a pair of locking holes 51, 51 into which the engaging protrusions 16 can be inserted from the direction orthogonal to the vehicle body panel 50. When the protector 1 is rotated and the engagement protrusion 16 is rotated, a locking wall 51a into which the slit 17 is fitted is secured. In this case, the locking hole 51 is formed in an arc shape centering on an intermediate point between the engaging protrusions 16 so as to serve as a guide when the engaging protrusions 16 are rotated.

  Further, as shown in FIG. 5B, a convex portion 18 and a concave portion 52 that are fitted to each other are provided on one and the other of the opposing surfaces of the locking wall 51 a and the inner wall of the slit 17.

  Next, the operation will be described.

  When the protector 1 is fixed to the vehicle body panel 50, the pair of engaging protrusions 16, 16 provided on the protector 1 are connected to the pair of locking holes 51, 51 of the vehicle body panel 50, as indicated by an arrow A in FIG. 2. Insert from the vertical direction. As shown in FIGS. 3 and 4, when the engaging protrusion 16 is inserted into the locking hole 51, the protector 1 is rotated in the locking direction (the arrow B direction in FIG. 4). Then, as shown in FIG. 5, the slit 17 provided on the side surface of the engaging protrusion 16 in accordance with the rotation of the engaging protrusion 16 causes the locking wall 51 a at the edge of the locking hole 51 of the vehicle body panel 50. And the recesses 52 and the projections 18 are fitted together to prevent the slits 17 from coming off. Therefore, in this state, the protector 1 can be reliably fixed to the vehicle body panel 50 by the engaging protrusion 16.

  Further, in the case of the fixing structure of the present embodiment, since the engaging protrusion 16 is provided on the lower surface of the distal end of the arm 15 protruding in the width direction of the protector 1, the rotating radius of the engaging protrusion 16 can be increased. The engagement margin (overlapping area) between the slit 17 and the locking wall 51a can be increased with a small rotation angle, and the engagement force in the direction in which the protector 1 is lifted can be increased.

  Further, since the engaging hole 51 is formed in an arc shape to guide the engaging protrusion 16, the engaging protrusion 16 can be engaged with the engaging hole 51 or engaged with a smooth operation. Or cancel it. Further, the protector 1 and the vehicle body panel 50 can be positioned reliably and easily.

  On the other hand, to remove the protector 1 from the vehicle body panel 50 from this fixed state, the protector 1 is rotated in the opposite direction. Then, the slit 17 is detached from the locking wall 51a in accordance with the rotation of the engaging protrusion 16. In this state, the protector 1 can be easily removed from the vehicle body panel 50 by removing the engaging protrusion 16 from the locking hole 51. Can be removed.

  As described above, when the protector 1 is removed, it is only necessary to pull up the protector 1 while rotating the protector 1 in a certain direction. Therefore, the protector 1 can be easily removed with a small force.

(A) is a front view of the protector of embodiment, (b) is a top view of a vehicle body panel. It is a perspective view which shows the initial state in case a protector is attached with respect to the said vehicle body panel. It is a perspective view which shows the state which inserted the engaging protrusion of the said protector from the upper into the locking hole of the vehicle body panel. It is a perspective view which shows the state which rotated the protector in the locking direction from the state of FIG. 3, and was locked. (A) is a top view which shows the state which fixed the protector to the vehicle body panel, (b) is Vb-VB arrow sectional drawing of (a). It is a perspective view of the conventional protector.

Explanation of symbols

W wire harness 1 protector 15 arm 16 engagement protrusion 17 slit 18 protrusion 50 body panel 51 locking hole 51a locking wall 52 recess

Claims (3)

In the fixing structure of the protector for fixing the protector that houses the wire harness to the vehicle body panel,
A pair of engaging protrusions spaced apart from each other are provided on the outer wall of the protector, and the side surfaces of both engaging protrusions are located in the same plane, and the intermediate point between the two engaging protrusions is the center. When the engaging projections are rotated, a slit that opens toward the front in the rotational direction is formed, and both the engaging projections can be inserted into the vehicle body panel from the direction orthogonal to the vehicle body panel. A pair of locking holes, and securing a locking wall into which the slit fits when the engaging protrusion is rotated at the hole edge of each locking hole. 1. A protector fixing structure, wherein a convex portion and a concave portion that are fitted to each other are provided on one and the other of the surfaces facing the inner wall. The protector fixing structure according to claim 1,
A pair of arms are provided on both sides in the width direction of the protector perpendicular to the longitudinal direction of the wire harness so as to protrude outward, and the engagement protrusions are provided on the lower surfaces of the tips of the arms. A protector fixing structure. The protector fixing structure according to claim 1 or 2,
A structure for fixing a protector, wherein the locking hole is formed in an arc shape centering on an intermediate point between the both engaging protrusions so as to form a guide when the engaging protrusions are rotated.

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