JPH0550628U - Wire harness grommet - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a wire harness grommet having a split type bracket for easily incorporating the wire harness. [Structure] In a wire harness grommet configured by an elastic grommet main body in which a flange part for panel joining is connected to a tubular part for inserting a wire harness, and a bracket which covers the grommet main body and is bolted and fixed to the panel, The bracket is configured by upper and lower split type brackets 1 and 2 having flange portions 5 and 16 in which cutout openings 4 and 17 for inserting a wire harness are arranged, and ends of the cutout opening of one bracket 1 Slide guide 1 on the edge
1 is provided, and an engaging portion 21 for the slide guide is provided on a flange portion of the other bracket 2 that overlaps with the notch opening of one of the brats, so that the upper and lower brackets can be slidably engaged in the overlapping direction. ..

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wire harness grommet having a split-type bracket that can easily incorporate a wire harness.

[0002]

[Prior Art]

 FIG. 4 is an exploded perspective view showing a conventional wire harness grommet, and FIG. 5 is a vertical sectional view showing its assembled state. The wire harness grommet G ′ is composed of an elastic grommet main body 40 made of rubber and an annular bracket 41 provided on the grommet main body 40.

The grommet body 40 includes a flange plate 43 for a vehicle mounting panel 42, a cup 45 having a tubular portion 44 for inserting a wire harness, and an outer periphery of the cup 45, an inner peripheral edge of the bracket 41. A fitting groove 47 for the portion 46 is formed.

The bracket 41 has a holding flange 48 for the flange plate 43 and a tapered portion 49 for the cup 45, and the peripheral portion 46 is formed at the tip of the tapered portion 49. Bolt insertion holes 50 and 51 are provided in both flange portions 43 and 48, respectively.

Then, as shown in FIG. 5, the bracket 41 is inserted and attached to the grommet main body 40 in which the wire harness 52 is inserted, and is fixed to the mounting panel 42 by the bolt 53 and the nut 54. However, in the above-described conventional structure, when the bracket 41 is attached to the grommet body 40, the long wire harness 52 must be inserted into the bracket 41, resulting in extremely poor workability.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and an object thereof is to provide a wire harness grommet that can improve the mountability of the bracket to the elastic grommet body.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an elastic grommet main body in which a panel for joining a flange plate is connected to a tubular portion for inserting a wire harness, and a bracket which is secured to the panel by being bolted to the grommet main body. In the wire harness grommet constituted by, the bracket is composed of upper and lower split-type brackets that face each other and have a flange portion provided with a notch opening for inserting the wire harness. A slide guide is provided at the edge of the opening, and an engaging portion for the slide guide is provided at the flange portion of the other bracket that overlaps with the notch opening of the one brat, and the upper and lower brackets slide in the overlapping direction. Adopt a structure that can be engaged.

[0008]

[Action]

 Insert the wire harness through the notch openings in the upper and lower brackets. Then, the two brackets are overlapped with each other and slide-engaged in the vertical direction. That is, the slide guide and the engaging portion are slidably engaged. Then, the united bracket is covered on the grommet body in which the wire harness has been inserted into the tubular part in advance, and the panel is tightened and fixed to the panel with bolts. Here, the notch opening of one bracket overlaps with the flange portion of the other bracket, and the slide guide at the edge of the notch opening is engaged with the engaging portion of the flange portion. ) Even if sliding resistance in the rotational direction acts on the flange portion during tightening, the bracket does not deform in the opening direction from the notch opening, and sufficient strength is secured.

[0009]

【Example】

 FIG. 1 is an exploded perspective view showing an embodiment of a wire harness grommet according to the present invention. In the figure, 1 and 2 are a synthetic resin upper bracket and a lower bracket which are slidably engaged in the stacking direction to form one bracket, and 3 is a rubber elastic grommet covered by the brackets 1 and 2. Shows the body.

In the upper bracket 1, a semi-annular tubular portion 7 having an opening 6 communicating with the cutout opening 4 is provided upright at the center of a substantially elliptical flange portion 5 having a cutout opening 4 for inserting a wire harness. It is a thing. The flange portion 5 has an outer peripheral wall 9 suspended from a base plate 8 so that the lower bracket 2 can be housed in an inner space 10. The cutout opening extends from the outer peripheral wall 9 to the center of the base plate 8. 4 is provided.

A pair of guide ribs 11 and 11 as slide guides are provided at the notch opening edge of the outer peripheral wall 9 so as to face each other, and the inner peripheral side of the opening edge of the semi-annular cylindrical portion 7 is provided. In the above, a pair of guide grooves 12, 12 are also provided which communicate with the space 10 and which also serve as slide guides. Further, a pair of bolt holes 13, 13 are provided on both sides of the base plate 8, and a pair of locking holes 14, 14 for the lower bracket 2 are provided in the outer peripheral wall 9.

The lower bracket 2 is formed to be slightly smaller than the upper bracket 1, and the flange portion 16 is provided with a notch opening 17 having the same width as that of the notch opening 4 of the upper bracket 1. There is provided a semi-annular tubular portion 18 facing the semi-annular tubular portion 7. A pair of engaging ribs 19 and 19 as engaging portions for the guide groove 12 are provided at the opening edge of the semi-annular tubular portion 18. Further, a pair of engaging grooves 21 and 21 as engaging portions for the guide ribs 11 are provided on the outer peripheral wall 20 of the flange portion 16 on the side opposite to the cutout opening 17.

A pair of engaging projections 22, 22 for the locking hole 14 are provided on both sides of the outer peripheral wall 20, and a bolt hole 24 corresponding to the bolt hole 13 is formed in the base plate 23 of the flange portion 16. It is provided. The elastic grommet main body 3 is housed in the inner space 25 of the lower bracket 2.

The grommet main body 3 is formed by integrally forming a flange plate 28 for joining a panel on a tubular portion 27 for inserting a wire harness, and an annular engagement member is formed on an outer periphery of an intermediate portion of the tubular portion 27. A stop ring 29 is integrally provided. Further, the flange plate 28 is provided with bolt insertion holes 30 corresponding to the bolt holes 13 and 24.

The upper bracket 1 and the lower bracket 2 are slidably engaged in the overlapping (vertical) direction with the wire harness inserted through the notch openings 4 and 17, that is, the semi-annular cylindrical portions 7 and 18. The guide grooves 12 and the engaging ribs 19, and the guide ribs 11 and the engaging grooves 21 of the flange portions 5 and 16 are slidably engaged with each other, and the engaging protrusions 22 are fitted into the locking holes 14 to integrally combine them. ..

FIG. 2 shows a state in which the above-mentioned combined bracket 32 is provided over the elastic grommet body 3 in which the wire harness 33 has been inserted. The grommet body 3 is fitted inside the united bracket 32. Even if many connectors 34 are connected to the wire harness 33, the bracket 32 can be mounted without any problem.

FIG. 3 shows an assembled state of the wire harness grommet G. The tubular portion 27 of the grommet main body 3 has a locking ring 29 on the tip surfaces of the semi-annular tubular portions 7 and 18 of the bracket 32. It is locked and held stably. Then, a nut 37 is screwed into a bolt 36 penetrating the bracket 32 from the panel 35 to tighten and fix the bracket 32. Here, the sliding force between the nut 37 and the flange base plate 8 causes a rotational force in the direction of arrow A to act on the bracket 32, but the guide rib 11 of the flange portions 5 and 16 and the engagement groove 21 do not move. Due to the coupling, the bracket 32 has sufficient strength and prevents the notch opening 4 from expanding and deforming (shown by a chain line).

[0018]

[Effect of the device]

 As described above, according to the present invention, the wire harness is inserted through the notch opening, and the upper and lower brackets are coupled in the overlapping direction, so that the bracket can be easily mounted. The combined brackets are prevented from being deformed during the bolting work due to the coupling of the slide guide and the engaging portion, and exhibit sufficient strength against external force and the like.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a state where a bracket is mounted on the elastic grommet body.

FIG. 3 is a perspective view showing a panel assembled state in the same manner.

FIG. 4 is an exploded perspective view showing a conventional example.

FIG. 5 is a vertical sectional view of the same as the assembled state.

[Explanation of symbols]

 1 Upper bracket 2 Lower bracket 3 Grommet body 4,17 Notch opening 5,16 Flange part 7,18 Semi-annular cylinder part 11 Guide rib 12 Guide groove 19 Engaging rib 21 Engaging groove 32 Bracket 35 Panel G Wire harness grommet

Claims (1)

[Scope of utility model registration request] 1. A wire harness comprising an elastic grommet main body in which a flange portion for joining a panel is connected to a tubular portion for inserting a wire harness, and a bracket which covers the grommet main body and is bolted and fixed to the panel. In the grommet, the bracket is composed of upper and lower split-type brackets having a flange portion in which a notch opening for inserting a wire harness is arranged, and a slide guide is provided at an end edge of the notch opening of one bracket. An engaging portion for the slide guide is provided on the flange portion of the other bracket that overlaps with the notch opening of the one bracket, and the upper and lower brackets can be slidably engaged in the overlapping direction. Wire harness grommet to be.