JPH11332063A - Grommet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably support a long grommet at a specific position by providing a clip for gear-locking a body on the outer-periphery surface of the required part of a long cylindrical part integrally or freely mountably. SOLUTION: A hard resin molding 14, where a long cylinder of a grommet 10 is formed, is refracted into an L-shape, a clip-mounting plate 14j is allowed to integrally project at the inner periphery side of the refraction part, and a clip 20 for gear-locking a body is provided integrally or freely mountably at a mounting hole projection at the center of the clip-mounting plate 14j. Then, the clip 20 is fixed to a retention frame 40 of back door glass 4 and at the same time gear-lock nibs 15k-3 and 15k-4 are gear-locked to the gear-lock holes of a bracket 50 which is attached to the back door glass 4, thus stably retaining the shape of the grommet 10 along a specified path.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grommet to be attached to a group of electric wires routed to a motor vehicle, and more particularly to a grommet having a cylindrical portion serving as a long electric wire insertion portion. Is provided with a clip or a locking claw to be fixed to the vehicle body side so that the grommet can be stably held.

[0002]

2. Description of the Related Art Conventionally, power is supplied to a back door of a hatchback type automobile, as shown in FIG. 12 and FIG. 13, by conical expansion at both ends of a long small-diameter cylindrical portion 5a through which a group of electric wires are inserted. Grommet 5 formed with portions 5b and 5c
The grommet 5 is fitted with a vehicle body locking portion provided on one enlarged diameter portion 5b of the grommet 5 into the through hole 1a of the roof panel 1, and a vehicle body locking portion provided on the other enlarged diameter portion 5c is fitted with a bag door. The roof panel 1 is fitted into the through hole 3a formed in the frame 3 and
The wire group W is routed from the through hole 1a to the bag door side through the grommet 5.

[0003] In this type of hatchback type automobile, there is a type in which a backdoor glass attached to the bag door is opened and closed independently of the opening and closing operation of the entire bag door. As a grommet used for such a hatchback type automobile, the present applicant has previously described Japanese Patent Application No. 9-1.
At 50759, the grommets 7 and 8 shown in FIGS. 14A and 14B are provided. The grommet 7 has two cylindrical portions 7b and 7c integrally formed in an orthogonal direction from one end of the cylindrical portion 7a. The grommet 8 is formed by connecting the branched cylinder portions 8b and 8c to the cylinder portion 8.
a, and is detachably connected via joint pipes 8d and 8e.

The grommets 7 and 8 have a body fitting portion 7d and 8f at one end fitted and fitted in a through hole of a roof panel, and a body fitting portion provided at a tubular portion branched into two at the other end. 7e, 7f, 8g, and 8h are fitted and attached to the through holes of the back door glass, and the bent and long cylindrical portion is disposed between the roof panel and the back door glass.

[0005]

SUMMARY OF THE INVENTION The above grommets 7, 8
Can completely and waterproofly protect a group of wires routed in a wetted area between a roof panel and a back door, but because of its length, poor shape stability, as shown in FIG. As shown in FIG. 15 (B), there is a problem that the grommet is likely to be damaged, and the grommet is damaged by contact with an external interference material.

Further, if the grommet is deformed and is displaced from the set position, the grommet is located near the back door when the back door is opened and closed, and may be pinched by the back door.

[0007] The present invention has been made in view of the above problems, and has as its object to stably support a long grommet at a predetermined position.

[0008]

In order to solve the above-mentioned problems, the present invention comprises a long tubular portion serving as an electric wire insertion portion, and is attached to a panel through hole at least at one end in the longitudinal direction of the tubular portion. Grommet with a fitted body fitting
A grommet is provided in which a clip for locking a vehicle body is provided integrally or freely on an outer peripheral surface of a required portion of the long tubular portion.

The clip provided on the grommet has substantially the same shape as a clip conventionally used for locking a wire harness to a vehicle body, and has a shaft protruding from the base plate and both ends of the shaft. The locking wing is provided in a folded shape, and the shaft is inserted from the outer surface into the mounting hole provided on the vehicle body side, and the locking wing is locked and fixed to the inner surface of the mounting hole. Things.

The clip may be attached to a clip mounting portion projecting from an outer peripheral surface of a long tubular portion of the grommet by attaching the substrate portion, or the clip portion may be attached to an outer peripheral surface of the grommet tubular portion. May be protruded and formed integrally with the grommet.

The grommet provided with the clip may be of a type in which the whole is integrally formed of rubber or elastomer or divided and molded and connected. Also,
Formed with a cylinder of an elastic material molded product made of rubber or elastomer and a cylinder of a hard resin molded product such as polypropylene,
It is preferable to apply the present invention to a grommet which is assembled by connecting these tubular portions in the direction of inserting the electric wire.

[0012] In this case, the above-mentioned tubular portion of the portion where the clip is provided integrally or freely attachable is made of a resin molded product, and a tubular portion of an elastic material molded product made of rubber or elastomer is attached to and detached from the tubular portion of the resin molded product. They are freely connected to form an electric wire insertion portion.

As described above, when the portion fixed to the vehicle body via the clip is a hard resin molded product, the strength of the grommet at the portion to be locked to the vehicle body can be increased, and the grommet can be more stably supported. it can.

The cylindrical portion provided with the clip is made of an elastic material formed of rubber or elastomer.
The clip may be integrally formed of rubber or elastomer. Further, a pair of ribs for defining a band attachment position may be provided on the outer peripheral surface of the cylindrical portion made of rubber or elastomer, and a band type clip may be attached between these ribs.

Further, the present invention provides a grommet comprising a long tubular portion serving as an electric wire insertion portion, and a vehicle body fitting portion attached to a panel through hole at least at one end in the length direction of the tubular portion. The long cylinder is divided in the length direction into a cylinder of an elastic material molded article made of rubber or an elastomer, and a cylinder of a hard resin molded article. A long body is formed, and a vehicle body locking frame is provided on the outer periphery of the hard resin molded product, and a locking claw is provided on the vehicle body locking frame to be inserted and locked into a locking hole on the vehicle body side. Has provided grommets.

That is, as a means for fixing the grommet to the vehicle body side, instead of providing a clip, a type in which a locking claw is locked in a locking hole provided in a bracket protruding from the vehicle body or a body-side component may be used. In this case, if the locking claws are provided with rubber or an elastomer, the locking force is weak. Therefore, it is necessary to provide the locking claws on the cylindrical portion of the hard resin molded product.

The long grommet described above allows a group of electric wires to be routed from the roof of a hatchback-type automobile, in which the back door glass opens and closes independently of the opening and closing operation of the bag door of the vehicle, to the bag door glass. Preferably, the grommet has a body fitting portion on one end side of the cylindrical portion fitted into a through hole of the roof panel, and the other end side of the cylindrical portion has a body fitting portion formed on the bag door glass. The clip is fixed to the frame of the back door glass, or the locking claw of the vehicle body locking frame is locked to a bracket attached to the back door glass.

More specifically, the grommet is composed of a cylindrical portion of an elastic material molded product and a cylindrical portion of a hard resin molded product, and a locking portion and a locked portion are provided at the tips of these cylindrical portions. It is configured by sequentially locking and connecting in the insertion direction, and as the above-mentioned elastic material molded product, a bellows-shaped cylindrical portion bent and continuous from the enlarged diameter cylindrical portion is provided, and a vehicle body locking portion is provided on the enlarged diameter cylindrical portion. A first elastic material-formed product in which a resin inner is internally fitted and locked, and the locked portion is provided on the inner peripheral surface at the tip of the bellows-shaped cylindrical portion; A second elastic material molded product having the locked portion on the inner peripheral surface, and the locked portion provided on the inner circumferential surface of one end of a flat cylindrical shape, and the other end side is branched into a plurality of cylindrical portions. A third elastic molded product provided with a vehicle body locking portion on the base side of each of the branched cylinder portions and a slit provided from the distal end opening is provided, while the hard resin molded product is provided. Then, a clip portion having a flat cylindrical portion bent from one end side of the substantially true cylindrical portion was provided, and a clip mounting plate portion was protruded on an inner peripheral side of the bent portion, and provided on the clip mounting plate portion. Attach a resin clip to the mounting hole, and
An engaging portion for engaging with the locked portion of the first elastic material molded product is provided on one outer peripheral surface in the longitudinal direction of the cylindrical portion, and the second elastic material molded product is provided on the other flat outer peripheral surface. A first hard resin molded product provided with a locking portion for locking with a locked portion of the vehicle body, and a flat-shaped tubular body-shaped vehicle body locking frame from an outer peripheral surface of an intermediate portion in a longitudinal direction thereof. Protruding, providing locking claws on both sides thereof, and
A locking portion for locking with the locked portion of the second elastic member protrudes from an outer peripheral surface at one end in a longitudinal direction of the cylindrical portion, and the third elastic material molded product is provided at an outer peripheral surface at the other end. And a second hard resin molded product having a locking portion projecting from the third elastic material molded product, and a second hard resin molded product and a second elastic material molded product from the third elastic material molded product. After passing the wire group through the first hard resin molded article and the first elastic material molded article, the engaging portions of the molded articles are sequentially engaged with the locked portions to form a connection structure.

The above-mentioned grommet is such that a vehicle body engaging portion provided on the first elastic material molded product is fitted into a through hole formed in the roof panel, and is provided on each of the branched tubular portions of the third elastic material molded product. The vehicle body locking portions are fitted into through holes formed in the bag door glass, and the clips are attached to mounting holes provided in the holding frame of the back door glass, and the locking claws of the vehicle body locking frame are backed. It is attached by being locked in the locking hole of the bracket attached to the door glass.

With this configuration, in a hatchback type vehicle in which the back door glass opens and closes separately from the opening and closing operation of the bag door, the electric wire group does not get wet in the water-covered area between the roof and the bag door. Can be routed from the roof to the back door glass of the bag door. Further, since the grommet is fixed at two places by the grommet clip and the locking piece, the shape of the grommet can be stably held, and the occurrence of wobble and bending of the grommet and prevention of biting into the door can be prevented. .

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 9 show the entire grommet 10 of the first embodiment. The grommet 10 includes a first elastic material molded product 11, a second elastic material molded product 12, a third elastic material molded product 13 made of rubber or elastomer, and polypropylene. A first hard resin molded product 14 and a second hard resin molded product 15 are formed. Each of these molded products has a cylindrical shape, and includes a first elastic material molded product 11, a first hard resin molded product 14, a second elastic material molded product 12, a second hard resin molded product 15, and a third elastic material molded product 13.
Are sequentially connected to form an electric wire group insertion passage which is connected in series.

The first hard resin molded product 14 of the grommet 10 is bent into an L-shape, and a clip mounting plate 14j is integrally protruded on the inner peripheral side of the bent portion.
a resin clip 2 into the mounting hole 14k drilled in the center of
0 is attached.

A U-shaped frame-shaped vehicle engaging portion 15k is provided on the outer periphery of the central portion of the second hard resin molded product 15, and both side portions 1k are provided.
Locking claws 15k-3, 15k- on 5k-1, 15l-2
4 are formed.

The grommet 10 is attached in advance to a group of electric wires routed from the roof panel side of the automobile to the back door glass that opens and closes separately from the opening and closing operations of the bag door. FIG. 2A shows a state in which the wire group 30 is attached.
As shown in (B), the vehicle body locking portion 16a of the resin inner 16 fitted inside the first elastic material molded product 11 on one end side of the grommet 10 is fitted into the through hole 1a provided in the roof panel 1, and Branch tube portion 1 of third elastic material molded product 13 on the other end side
3a and 13b, vehicle body locking portions 13a-1 and 13b-
1 is fitted into through holes 4a and 4b provided in the back door glass 4 and attached to an automobile.

The clip 20 is fixed to the holding frame 40 of the back door glass 4, and the locking claws 15k-3 and 15k-4 are engaged with the locking holes of the bracket 50 attached to the back door glass 4. Is stopped.

The first molded article of elastic material 11 is shown in FIG.
(B), the resin inner 16 is fitted and locked inside the elliptical enlarged-diameter cylindrical portion 11b.
Is provided with a vehicle body locking portion 16a. The bellows-like cylindrical portion 1 is bent at 90 degrees to the reduced diameter side of the large-diameter cylindrical portion 11b and has a substantially perfect bellows shape.
1c are provided continuously. Locked portions 11d are recessed in two rows in the length direction on the inner peripheral surface at the distal end of the cylindrical portion 11c, and a seal lip 11f protrudes between the locked portions 11d.

The second hard resin molded product 14 is shown in FIG.
(A) (B) (C) (D) (E)
It has an L shape bent at 0 degrees. One side of the L-shape is a perfect circular cylindrical portion 14a, and the other side is a flat cylindrical portion 14b.
And One end of the cylindrical portion 14a is formed as an opening, and two engaging portions 14c for engaging with the first elastic material molded article 11 are projected from an outer peripheral edge of the opening. The other end of the cylindrical portion 14a is a closed surface, and is formed by connecting a flat cylindrical portion 14b from a peripheral wall at a position close to the closed surface. The cylindrical portion 14b
At the outer peripheral edge of the front end opening, two locking portions 14e for locking with the second elastic material molded product 12 are protruded.

As described above, the cylindrical portion 14 bent 90 degrees.
A clip mounting piece 14j is protruded on the inner peripheral side of a and 14b, and a mounting hole 14k for fixing a clip is formed in the center of the clip mounting piece 14j.

As shown in FIGS. 4D, 5E and 5A, 5B, the clip 20 attached to the clip attaching piece 14j is made of a resin molded product, and the substrate portion 20a has a substantially U-shape. It is of a type that is inserted into the clip mounting hole 14k and clamped and fixed between upper and lower surfaces. The shaft portion 20b protrudes from the upper surface of the substrate portion 20a, the locking blade portions 20c on both sides protrude from the tip of the shaft portion 20b in a folded shape, and further, a plate portion 20d protrudes from the base of the shaft portion 20b. The shape of the clip 20 is not limited, and may be any configuration that can be fixed to the vehicle body.

The second elastic material molded product 12 is shown in FIG.
(B) As shown in (C), it has a flat cylindrical shape.
The cylindrical portion 12a has an elliptical shape on both opening sides as shown in FIG. 5 (B), while the intermediate portion has an elliptical shape as shown in FIG. 5 (C).
It has a flat rectangular tube shape. The first hard resin molded product 14 and two locked portions 12d for locking with the locking portions are provided on the inner peripheral surface at one end of the cylindrical portion 12a, while the second hard resin molding is formed on the inner peripheral surface at the other end. There are provided two locked portions 12c for locking with the product 15, and seal lips 12f and 12g are provided between the locked portions.
Is protruding.

The second hard resin molded product 15 is shown in FIG.
(A), (B), and (C), which have a flat cylindrical shape and, as shown in FIG. 7 (B), are bent at a moderate angle (about 150 degrees) in the longitudinal direction. ing. This bending corresponds to the shape of the wiring space.

A U-shaped frame 15k for latching the bracket is integrally provided at a position close to the central bent portion 15i of the cylindrical portion 15a. The frame portion 15k is connected to a connecting portion 15k-5 at the central outer surface on the wide side of the cylindrical portion 15a so as to protrude horizontally, and both side portions 15k-from both ends of the connecting portion 15k-5.
1, 15k-2 are bent and formed with locking claws 15k-3, 15k-4 on both sides thereof.

As shown in FIG. 8, these locking claws 15k-
Reference numerals 3 and 15k-4 are used for inserting and locking into the locking holes 50a and 50b of the bracket 50 attached to the back door glass 4, and fixing the grommet 10.

One end opening of the flat cylindrical portion 15a is engaged with the second elastic material molded product 12, and the other end opening thereof is engaged with the third elastic material molded product 13. Locking portions 15b and 15c are protruded.

The third elastic material molded article 13 is shown in FIG.
(B) In the shape shown in (C), the portion to be locked to the second hard resin molded product 15 is a flat cylindrical portion 13c, and two branch cylindrical portions 13a are formed from the enlarged diameter of the cylindrical portion 13c. 13b is provided integrally. Flanges 13d and 13f are provided on the outer peripheral surface of the base of the branch cylinders 13a and 13b on the base side. As shown in FIG. 9C, the vehicle body locking portions 13a-1 and 13b-1 have two seal lips 13a-2 and 13a-
3, 13b-2 and 13b-3 are protruded to enhance the sealing performance. Further, the slit 13 facing the small-diameter branch tubular portions 13a, 13b extending from the flange portions 13d, 13f.
g and 13h are provided to facilitate insertion of the electric wire.

The first, second, and third elastic material molded products 11, 12, and 13, and the first and second hard resin molded products 14 and 15 constituting the grommet 10 are assembled before being assembled as shown in FIG. , Third elastic molded article 13 → second hard resin molded article 1
5 → second elastic material molded product 12 → first hard resin molded product 14 →
The electric wires 30 are inserted in the order of the first elastic material molded product 11.

After passing the electric wire 30 through the molded products 11 to 15, the third elastic material molded product 13 → the second hard resin molded product 15 → the second elastic material molded product 12 → the first hard resin according to the order of inserting the electric wires. The molded article 14 is connected to the first elastic molded article 11 in this order. At this time, the distal ends of the hard resin molded products 14 and 15 are pressed into the distal end openings of the elastic resin molded products 11, 12 and 13. As described above, since the electric wires are sequentially inserted into each of the five divided molded products, and the molded products are connected, the insertion operation of the electric wire 30 can be easily performed. It can be done easily.

As described above, the grommet 10 is
2 is mounted between the roof panel 1 of the automobile and the back door glass 4 of the back door as shown in FIG. At this position, the clip 20 attached to the first hard resin molded product 14 is fixed to the outer peripheral frame 40 that holds the back door glass 4. That is, as shown in FIG. 10, the locking wing portion 20c of the clip 20 is inserted into the locking hole 40a provided in the outer peripheral frame 40 and locked. The locking claw 15 of the frame 15 k provided on the second hard resin molded product 15
k-3 and 15k-4 are locked to a bracket 50 attached to the back door glass 4. Grommet 1
0 in addition to fitting and fixing the through holes of the roof panel 1 and the back door glass 4,
By fixing at 5k-3 and 15k-4, the long grommet 10 can be stably held according to the set shape.

The present invention is not limited to the above embodiment. As shown in FIG. 11A, a clip 20 'is integrally formed from the outer peripheral surface of the cylindrical portion of the first hard resin molded product 14. Is also good. Alternatively, as shown in FIG.
A clip 20 'may be integrally molded and attached from a required position on the outer peripheral surface of the rubber or elastomer grommet 7' or 8 'shown in FIG. Further, FIG.
As shown in FIG. 1 (C), a pair of annular ribs 7'x and 8'x are protruded from the outer peripheral surface of the cylindrical portion of the grommet 7 'or 8', and a band 200a is provided between these ribs. May be wound and attached.

[0040]

As is apparent from the above description, according to the present invention, in a grommet provided with a long wire insertion portion, a clip for locking a vehicle body from an outer peripheral surface of a cylindrical portion constituting the wire insertion portion. Alternatively, and / or since the vehicle body locking claws are integrally or detachably attached and attached, the grommet can be stably held along the predetermined path.

As a result, there is an advantage that the long grommet does not wobble or bend, and when the grommet is arranged near the door, there is no danger that the grommet will bite when the door is opened and closed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a grommet according to an embodiment of the present invention.

FIGS. 2A and 2B show a state in which electric wires are wired to a vehicle using the grommet of FIG. 1; FIG. 2A is an overall view of the rear side of the vehicle; FIG.

3A and 3B show a first elastic material molded product used in the embodiment, wherein FIG. 3A is a plan view and FIG. 3B is a sectional view.

4A and 4B show a first hard resin molded product used in the embodiment, wherein FIG. 4A is a plan view, FIG. 4B is a right side view, and FIG.
Is a front view, (D) is a plan view with a clip attached, and (E) is a right side view with the clip attached.

5A and 5B show the clip in detail, wherein FIG. 5A is a front view and FIG. 5B is a cross-sectional view.

6A and 6B show a second elastic material molded product used in the embodiment, wherein FIG. 6A is a plan view, FIG. 6B is a sectional view taken along line BB of FIG. 6A, and FIG. It is CC sectional drawing.

7A and 7B show a second hard resin molded product used in the embodiment, wherein FIG. 7A is a plan view, FIG. 7B is a front view, and FIG. 7C is a cross-sectional view taken along line CC of FIG. .

FIG. 8 is a cross-sectional view showing a state where the second hard resin molded product is locked on a bracket.

9A and 9B show a third elastic material molded product used in the embodiment, wherein FIG. 9A is a plan view, FIG. 9B is a front view, and FIG. 9C is a sectional view taken along line AA of FIG. .

FIG. 10 is a schematic diagram showing a locked state of the clip.

FIGS. 11A, 11B, and 11C are schematic views showing another embodiment of the present invention.

FIG. 12 is a perspective view showing a conventional grommet.

FIG. 13 is a sectional view showing a use state of the grommet of FIG.

14A and 14B are perspective views showing another conventional grommet.

FIGS. 15A and 15B are schematic diagrams showing a conventional problem.

[Description of Signs] 1 Roof panel 4 Back door glass 10 Grommet 11 First elastic material molded product 12 Second elastic material molded product 13 Third elastic material molded product 14 First hard resin molded product 15 Second hard resin molded product 15k -3, 15k-4 Locking claw 20 Clip 30 Wire group

Claims (5)

[Claims] 1. A grommet comprising: a long tubular portion serving as an electric wire insertion portion; and a vehicle body fitting portion attached to a panel through hole at least at one end of the tubular portion in a length direction. A grommet characterized in that a clip for locking a vehicle body is provided integrally or freely on an outer peripheral surface of a required portion of a cylindrical portion. 2. The clip has a shape having a locking wing portion, and the cylindrical portion of the portion where the clip is integrally or freely attachable is made of a resin molded product, and rubber or rubber is attached to the cylindrical portion of the resin molded product. The grommet according to claim 1, wherein a tubular portion of an elastic material molded product made of an elastomer is detachably connected to form a wire insertion portion. 3. The grommet according to claim 1, wherein the cylindrical portion is formed of an elastic material molded product made of rubber or an elastomer, and the clip is integrally formed. 4. A grommet comprising: a long tubular portion serving as an electric wire insertion portion; and a vehicle body fitting portion attached to a panel through hole at least at one end of the tubular portion in the length direction. The cylindrical portion is divided in the length direction, and is composed of a cylindrical portion of an elastic material molded product made of rubber or an elastomer, and a cylindrical portion of a hard resin molded product. A grommet comprising: a body locking frame protruding from an outer periphery of a cylindrical portion of the hard resin molded product; and a locking claw provided on the vehicle body locking frame to be inserted and locked into a locking hole on the vehicle body side. 5. A hatchback type vehicle in which a back door glass opens and closes independently of an opening and closing operation of a bag door of an automobile. The body fitting portion at one end of the portion is fitted into the through hole of the roof panel, and the other end of the cylindrical portion is fitted into the through hole formed at the body door fitting portion of the bag door glass, and the clip is attached. The grommet according to any one of claims 1 to 4, wherein the grommet is fixed to a frame of the back door glass, or a locking piece of the vehicle body locking frame is locked to a bracket attached to the back door glass. .