JP3601306B2 - Clamp fixing structure of wire harness protector - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a clamp fixing structure for locking a tubular wire harness protector for covering and protecting a wire harness extending between a vehicle body and a glass hatch of a back door to a glass hatch side.
[0002]
[Prior art]
As shown in FIG. 2, a glass hatch G that opens and closes a window opening B1 of a back door B of a vehicle is supported at the left and right positions of an upper edge at a rear end of a roof R of a vehicle body via a hinge member H so as to be vertically rotatable. ing. The glass hatch G is provided with a high-mount stop lamp (hereinafter, referred to as a lamp) G1 at an upper end position on an inner surface thereof, and a wiper unit G3 for driving a wiper G2 at a lower end position on the inner surface. Then, a cylindrical wire harness protector 1 is provided between the rear end of the roof R and the upper end of the glass hatch G, and the wire harness inserted therethrough to supply power to the lamp G1 and the wiper unit G3 is connected to the rear end of the roof R. To the lamp G1. The wire harness W1 connected to the wiper unit G3 is covered with a tube or the like, and is wired from the lamp G1 to the wiper unit G3 along the periphery of the glass hatch G.
[0003]
3 and 4 show a typical example of a wire harness protector. A wire harness protector 1 includes a bellows-like grommet 2 attached to a rear end of a roof R, an L-shaped protector member 3 bent at a substantially right angle, and A grommet 4, a protector member 5, and a grommet 6 penetrating the upper end of the glass hatch G are connected in series. The protector member 3 is fixed to a hinge arm of a hinge member H, and the rear end of the roof R and the glass hatch are connected. It is fixed by a clamp 7A to the inner surface of a cover member G4 which covers a connection portion with G and rotates integrally with the glass hatch G. In the figure, W is a wire harness.
[0004]
As shown in FIGS. 5 and 6, a conventionally used clamp 7A is generally made of synthetic resin, and has a flat board portion 71 and an elastic locking piece 73 having a U-shaped cross section with the board portion 71. A locking claw 74 is formed on the stopper 73. The clamp 7 </ b> A fits the flat plate-shaped clamp mounting seat portion 31 protruding from the inner outer surface of the bent portion of the protector member 3 into the gap between the board portion 71 and the locking piece 73. The mounting piece 31 is sandwiched between the locking piece 73 and the locking claw 74 of the locking piece 73 is locked in the locking hole 32 of the mounting seat 31 and fixed to the protector member 3. The mounting seat 31 is reinforced by providing wall-shaped flanges 33 protruding along both left and right ends.
[0005]
Further, the clamp 7A has a suction cup-shaped lip 76 and a locking leg 77 on the back side of the substrate portion 71, and the locking leg 77 is fitted into a clamp hole of the cover member G4 and fixed to the cover member G4. ing.
[0006]
[Problems to be solved by the invention]
By the way, recently, installation of a roof spoiler in a vehicle has become popular, and the cover member G4 once installed may be replaced with a cover member with a roof spoiler. In this case, the wire harness protector 1 removes the protector member 3 from the clamp 7A, removes the protector member 3 from the cover member G4, rearranges the cover member, and uses the clamp 7A removed from the original cover member G4 to replace the wire harness protector 1 with a new roof. It is fixed to the inner surface of a cover member with a spoiler.
[0007]
However, when the protector member 3 is removed from the clamp 7A, the locking piece 73 of the clamp 7A is bent outward to open a gap between the locking piece 73 and the substrate 71, thereby locking the locking claw 74 and the mounting seat 31. The engagement with the hole 32 is released, but the mounting seat portion 31 is moved integrally with the locking piece 73 that bends and deforms. Therefore, if the locking piece 73 is further bent to remove the locking claw 74 from the locking hole 32, the locking piece 73 may be damaged. Further, even if the locking piece 73 is not damaged, the locking piece 73 is permanently deformed and the elastic force of the locking piece 73 is lost. Even if the protector member 3 is mounted on the locking piece 73, the holding force for sandwiching the mounting seat 31 is reduced. It is easy to come off.
[0008]
Therefore, an object of the present invention is to provide a clamp fixing structure of a wire harness protector which has a simple structure, has a strong coupling force between a wire harness protector and a clamp, and is easy to attach and detach. .
[0009]
[Means for Solving the Problems]
The present invention is a clamp fixing structure for locking a cylindrical wire harness protector for covering and protecting a wire harness extending between a vehicle body and a glass hatch that opens and closes a window opening of a back door on the glass hatch side. The wire harness protector has a plate-shaped clamp mounting seat protruding therefrom, and the clamp has an elastic locking piece having a U-shaped cross section formed by a substrate portion and a substrate portion and having a locking claw at a tip thereof; A locking leg protruding from the back surface of the clamp, wherein the clamp mounting seat is fitted into a gap between the substrate portion of the clamp and the locking piece, and the locking claw is provided on the mounting seat. together occupy engage the hole, Waso the locking Tomeashi in clamping structure of the wire harness protector without as allowed to engage with the clamp holes of the glass hatch side, to the clamp mount seat A reinforcing flange is provided along the side edge and protrudes from a position closer to the inside than the side edge, and the side edge of the substrate portion has a U-shaped cross-section opening toward the inside of the gap along the side edge. A fitting groove separated from the piece by a slit is formed, and when the clamp mounting seat is fitted into the gap, the side edge and the reinforcing flange of the clamp mounting seat are simultaneously fitted to the fitting groove and the slit of the clamp, respectively. To fit in .
[0010]
When removing the wire harness protector from the clamp if necessary, the fitting groove provided on the side edge of the board part of the clamp fits and holds the side edge of the mounting seat of the wire harness protector. Even if it is bent, the mounting seat does not move. Therefore, when the locking piece is bent while applying a force in the removing direction along the fitting groove to the mounting seat, the mounting seat is pulled out at the moment when the locking claw comes out of the locking hole. Therefore, the bending of the locking piece for extracting the mounting seat can be minimized, and the clamp is not damaged or permanently deformed.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 2, the glass hatch G is mounted on the rear end of the roof R of the vehicle body via a hinge member H so as to be rotatable up and down coaxially with the back door B. The hinge member H includes a pair of upper and lower hinge arms that rotate coaxially. A back door B is attached to the lower hinge arm, and a glass hatch G is attached to the upper hinge arm. To open and close the window opening B1 of the back door B. Further, a connecting portion between the rear end of the roof R, the back door B and the glass hatch G is covered with a cover member G4. The cover member G4 is fixed to the upper hinge arm by bolting, and rotates integrally with the glass hatch G.
[0012]
The glass hatch G is provided with a lamp G1 at an upper end position on its inner surface, and a wiper unit G3 for driving a wiper G2 at a lower end position on the inner surface. A cylindrical wire harness protector 1 extends from the rear end of the roof R to the upper end of the glass hatch G along the inner surface of the cover member G4 at a connection portion between the rear end of the roof R and the glass hatch G. The wire harness W (FIG. 4) connected to the lamp G1 and the wiper unit G3 is inserted through the wire harness W and is wired from the rear end of the roof R to the lamp G1. W1 in the figure is a wire harness connecting the lamp G1 to the wiper unit G3, which is covered with a tube or the like and is wired along the periphery of the glass hatch G.
[0013]
As shown in FIGS. 3 and 4, the wire harness protector 1 includes first and second grommet 2, 4, 6 made of a soft material and first and second protector members 3, 3 made of a hard material. 5 are connected in series. The first grommet 2 is cylindrical and has a mounting portion 21 provided at one end engaged with and fixed to a through hole R1 at the rear end of the roof R, and a first protector member 3 connected to the other end. The first grommet 2 is capable of torsionally deforming the middle portion thereof as a bellows portion 22. The first protector member 3 is L-shaped, one opening side 35 connected to the first grommet 2 has a cylindrical shape, the other opening side 36 has a flat cylindrical shape, and the other opening has a flat cylindrical shape. One end of the second grommet 4 is connected. One end of a flat cylindrical second protector member 5 is connected to the other end of the second grommet 4, and a flat cylindrical third grommet 6 is connected to the other end of the second protector member 5. I have. At the rear end of the third grommet 6, a pair of cylindrical legs 61 are extended, each penetrating the upper end of the glass hatch G and inserted into the case of the lamp G1. In the wire harness protector 1, the first protector member 3 is fixed to the front end of the inner surface of the cover member G4 by the clamp 7, and the second protector member 5 is fixed to the outer surface of the upper end of the glass hatch G by the holder member 8. It extends between the rear end of the roof R and the upper end of the glass hatch G. The bellows 22 of the first grommet 2 is twisted and deformed with the opening and closing rotation of the glass hatch G.
[0014]
As shown in FIG. 1, the first protector member 3 is integrally formed with a clamp mounting seat 31 inside a right-angled bent portion. The mounting seat 31 has a rectangular flat plate shape protruding inside the bent portion. The mounting seat 31 has a wall-shaped reinforcing flange 33a protruding along a side edge in contact with a cylindrical portion 36 connecting the second grommet 4. A wall-like reinforcing flange 33b parallel to the reinforcing flange 33a is provided at a position slightly inward on the side edge 34 opposite to the side edge, and the side edge 34 is provided with a reinforcing flange 33b. Projecting outside. The mounting seat 31 has a rectangular locking hole 32 at an intermediate position between the reinforcing flanges 33a and 33b.
[0015]
On the other hand, the clamp 7 is made of a synthetic resin, and its main body is formed of a rectangular substrate 71, side walls 72a and 72b rising from two adjacent side edges of the substrate 71, and upper edges of the side walls 72a and 72b. An upper plate 73 having substantially the same shape as the substrate 71 serving as two adjacent side edges.
[0016]
The upper plate 73 and the substrate unit 71 are parallel to each other and face each other with a gap. The upper plate 73 is separated into a portion 73a on the side wall 72a and another portion 73b by a slit 731 formed in a direction close to and along the side edge on the side wall 72a side. The other portion 73b forms an elastic locking piece that can be bent and deformed around its root, and the locking piece 73b, the side wall 72b, and the substrate 71 have a U-shaped cross section. An upstanding flange 732 is formed on the leading edge of the locking piece 73b, and a locking claw 74 protruding in the direction of the substrate 71 is formed at a position near the center of the locking piece 73b. The locking claw 74 has a substantially right-angled triangular cross section, and has an inclined surface that rises from the tip end side of the locking piece 73b toward the root at a gentle inclination angle.
[0017]
The portion 73a of the upper plate 73 is formed along the side wall 72a with the side wall 72a and the end of the substrate portion 71 to form a fitting groove 75 having a U-shaped cross section that opens toward the slit 731. The opening at the tip of the elastic locking piece 73b and the opening of the fitting groove 75 facing the locking piece 73b are perpendicular to each other.
[0018]
A sucker-like lip 76 is formed integrally with the substrate 71 on the back surface of the substrate 71, and a locking leg 77 projects from the center of the lip 76. The locking leg 77 is provided with a pair of elastic claw pieces 771 extending from the tip toward the lip portion 76 on both sides thereof.
[0019]
The clamp 7 has the distal end side of the elastic locking piece 73b of the main body facing the mounting seat 31, aligns the slit 731 with the reinforcing flange 33b, and places the elastic locking piece 73b between the reinforcing flanges 33a and 33b. After being positioned, the clamp 7 is pushed along the cylindrical portion 36 of the first protector member 3. As a result, the general portion of the mounting seat portion 31 is pressed into the gap between the board portion 71 and the locking piece 73b while pushing up the locking piece 73b, and the side edge 34 of the mounting seat portion 31 is fitted with the clamp 7. The clamp 7 is fitted into the groove 75, the reinforcing flange 33 b of the mounting seat 31 is fitted into the slit 731 of the clamp 7, and the locking claw 74 is fitted and locked in the locking hole 32 of the mounting seat 31, so that the clamp 7 is in the first position. Is fixed to the protector member 3.
[0020]
Then, the clamp 7 fits the locking leg 77 into a clamp hole provided in the inner plate of the cover member G4, presses the lip portion 76 against a panel surface around the clamp hole of the cover member G4, and sets the locking leg 77. The first protector member 3 is fixed to the cover member G4 by engaging the elastic claw pieces 771 with the clamp holes.
[0021]
When the protector member 3 is detached from the clamp 7 for the rearrangement of the cover member G4 or the like, the tip of a tool such as a flathead screwdriver is hooked on the flange 732 of the elastic locking piece 73b so that the locking piece 73b is bent outward. The gap between the portion 71 and the locking piece 73b is opened to release the engagement between the locking claw 74 and the locking hole 32 of the mounting seat 31. At this time, since the side edge 34 of the mounting seat 31 is fitted and held in the fitting groove 75 of the clamp 7, the mounting seat 31 is held on the substrate 71 side. Therefore, if the locking piece 73b is bent while applying a light load to the mounting seat 31 along the fitting groove 75, the mounting seat 31 can be pulled out when the locking claw 74 comes out of the locking hole 32. it can. Therefore, the bending of the locking piece 73b for removing the mounting seat 31 from the clamp 7 can be minimized, and the damage and deformation of the locking piece 73b can be prevented. Can be effectively used for attachment to the protector member 3.
[0022]
At the joint between the clamp 7 and the protector member 3, the mounting seat 31 of the protector member 3 is locked by the locking piece 73b, and the side edge 34 of the mounting seat 31 is fitted into the fitting groove of the substrate 71. Since it is locked at 75, the connection between the mounting seat 31 and the clamp 7 is stable and strong.
[0023]
【The invention's effect】
According to the clamp fixing structure of the present invention, the coupling force between the wire harness protector and the clamp is stable and strong with a simple structure. In addition, the wire harness protector can be easily and easily removed from the clamp as needed. Therefore, the clamp does not break or is permanently deformed when it is removed, and the clamp can be effectively used again by attaching the wire harness protector again.
[Brief description of the drawings]
1A and 1B show a clamp fixing structure of a wire harness protector according to the present invention. FIG. 1A is an exploded perspective view thereof, and FIG. 1B is a view showing a state where a clamp is attached to a protector member. FIG. 2 is a cross-sectional view taken along a line IB-IB.
FIG. 2 is a perspective view of a rear portion of the vehicle with a glass hatch opened.
FIG. 3 is a plan view of a wire harness protector to which the present invention is applied.
FIG. 4 is a sectional view of an upper rear end of a vehicle provided with a wire harness protector.
FIG. 5 is an exploded perspective view of a conventional clamp fixing structure of the wire harness protector.
FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5 in a state where a conventional clamp is attached to a protector member.
[Explanation of symbols]
G Glass hatch G4 Glass hatch side member (cover member)
DESCRIPTION OF SYMBOLS 1 Wire harness protector 3 Protector member 31 Clamp mounting seat part 32 Locking hole 34 Side edge 7 Clamp 71 Board part 73b Elastic locking piece 731 Slit 74 Locking claw 75 Fitting groove 77 Locking leg

Claims (1)

It is a clamp fixing structure that locks the wire harness protector that covers and protects the wire harness extending between the vehicle body and the glass hatch of the back door to the glass hatch side, and the wire harness protector has a flat plate shape. The clamp is provided with an elastic locking piece having a U-shaped cross section with the substrate, a locking claw at the tip, and a locking leg protruding from the back surface of the substrate. Fitting the clamp mounting seat into the gap between the base plate and the locking piece of the clamp, and engaging the locking claw with a locking hole provided in the mounting seat, the clamp structure for fixing the wire harness protector without legs as allowed to engage with the clamp holes of the glass hatch side, the said clamp mounting seat portion of the inner side than the side edge along its side edges A reinforcing flange protruding from the mounting portion is provided, and a side edge of the substrate portion has a U-shaped cross section which opens toward the gap along the side edge, and a fitting groove separated from the elastic locking piece by a slit. When the clamp mounting seat is fitted into the gap, the side edge and the reinforcing flange of the clamp mounting seat are simultaneously fitted into the fitting groove and the slit of the clamp, respectively. Clamp fixing structure of wire harness protector.

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