JPH0562131U - Grommet - Google Patents

Abstract

(57) [Summary] [Purpose] The grommet can be easily assembled into the engagement hole of a panel of a vehicle or the like without bending the seal portion of the grommet body. A hard lock member 40 fitted and locked in an engagement hole of a panel, and a soft grommet main body 30 into which a wire harness is inserted and fixed are provided. In the grommet 20 having the seal portion 34 and fitted with the lock member 40,
A rib 35 is provided from the tip of the seal portion 34 to the base thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grommet used for waterproofing, soundproofing, and preventing damage to a wire harness when the wire harness is routed through a panel of a vehicle or the like.

[0002]

[Prior Art]

 Conventionally, an example of this type of grommet has been disclosed in Japanese Utility Model Laid-Open No. 63-101421, which will be described with reference to FIG.

The grommet G is composed of a large-diameter base portion 1 and a small-diameter head portion 2, and has a cylindrical soft grommet body A in which a wire harness 3 is inserted, and the grommet body A is fixed and a panel P of a vehicle or the like. And a lock member B made of a hard resin, which is fitted and locked in the engaging hole of.

The base 1 of the grommet main body A is provided with an annular recess 11 which is fitted and locked in the lock member B. Further, the tip of the base 1 has a lip shape protruding outward and has a wall thickness of the tip. Is provided with a thin and flexible seal portion 10. Further, the head 2 fixes the inserted wire harness 3 and further wraps the tape 5 around the end of the head 2 and the wire harness 3 to more securely fix the inserted wire harness 3. , The gap between the tip of the head 2 and the wire harness 3 is sealed.

To route the wire harness 3 to the panel P 1 of a vehicle or the like using the grommet G having such a configuration, first, the recess 11 of the grommet body A is fitted and locked to the lock member B. Next, the fitted and locked grommet G is fitted into the wire harness 3, and the base portion 1 of the grommet body A is pressed toward the engagement hole formed in the panel P to engage the lock member B. The grommet G is sealed by fitting and locking the grommet G in the hole and tightly attaching the seal portion 10 of the grommet body A to the panel P.

[0006]

[Problems to be solved by the device]

 However, when the lock member B is fitted into the engagement hole of the panel P, the seal portion 10 is thin and easily bent as shown in FIG. 5, so that the tip of the seal portion 10 remains bent inward. The grommet G may be attached to the panel P. In such a case, there was a problem that the grommet G was not sealed and water leaked into the grommet G in a place where it rained.

For this reason, it is possible to carefully fix the grommets G one by one to the panel P so that the tip of the seal portion 10 is not bent. However, in this case, the wiring work of the wire harness 3 is delayed and workability is improved. However, there is a problem that

The present invention has been made in view of the above points, and when the wire harness is installed in a vehicle or the like, when the grommet is assembled in the engagement hole formed in the panel, the seal of the grommet body is attached. It is an object of the present invention to provide a grommet in which a portion is not bent and can be easily assembled in an engaging hole of a panel.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a hard lock member fitted and locked in an engagement hole of a panel, and a soft grommet main body into which a wire harness is inserted and fixed, and a base portion of the main body. In the grommet having the lip-shaped seal portion and the lock member fitted therein, the rib is provided from the tip of the seal portion to the root.

[0010]

[Action]

 When wiring the wire harness to a vehicle, etc., the ribs reinforce the seal part when the grommet is installed in the engagement hole of the panel of the vehicle etc. Can be fitted and locked in the engagement hole of the panel.

[0011]

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of a grommet according to the present invention. In the figure, the grommet 20 is composed of a large-diameter base portion 31 and a small-diameter head portion 32, and a cylindrical soft grommet main body 30 into which a wire harness (not shown) is inserted, and the grommet main body 30 is fixed. At the same time, the cylindrical hard lock member 40 is fitted and locked in the engaging hole of the panel of the vehicle or the like.

An annular recess 33 is provided in the base 31 of the grommet body 30, and a flexible lip-shaped seal portion 34 is provided at the front end of the base 31 so as to project outward and the tip has a small thickness. On the outer peripheral surface of the seal portion 34, in order to increase the bending rigidity of the seal portion 34, a plurality of ribs 35 radially extending from the root of the seal portion 34 toward the tip thereof are erected at predetermined intervals. There is. The grommet body 30 is made of soft resin or the like.

The lock member 40 is composed of a tubular portion 41 and a flange portion 42 projecting outward from one end of the tubular portion 41 and capable of being fitted into the annular recess of the grommet body 30. The locking member 40 is molded of hard synthetic rubber or the like. It

In the middle of the tubular portion 41, a plurality of locking portions 43 having a spring action are provided at a plurality of places by cutting out a part of the peripheral wall and projecting outward.

In order to install a wire harness on a panel of a vehicle or the like using the grommet having such a structure, first, the wire harness is inserted into the grommet body 30 and the hard lock member 40, and the head 32 of the grommet body 30 is inserted. Wrap the tape around the wire harness inserted through the end. Subsequently, the base portion 31 of the grommet body 30 is stretched and the annular recess 33 having an enlarged diameter is fitted and locked to the flange portion 42 of the lock member 40. Further, the tip of the lock member 40 is brought into contact with an engaging hole formed in a panel of a vehicle or the like to press the grommet body 30. At this time, since the seal portion 34 is reinforced by the ribs 35, the lock member 40 can be fitted and locked in the engagement hole of the panel without bending the seal portion 34 inward. As a result, the seal portion 34 can be brought into close contact with the panel.

Since the grommet body 30 is hermetically sealed in the state where the grommet 20 is assembled to the panel in this way, even if rain or the like falls, water may leak into the grommet 20. There is no.

[0018]

[Effect of the device]

 As described above, according to the present invention, since the seal portion is reinforced by the rib when the grommet is assembled into the engagement hole of the panel of the vehicle or the like, the lock member of the grommet can be secured without bending the seal portion. Can be easily fitted and locked in the engaging hole of the panel. As a result, the seal portion can be brought into close contact with the panel, and rainwater cannot pass through the gap between the seal portion and the panel and enter the grommet even if rain falls.

[Brief description of drawings]

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

FIG. 2 is a plan view of the grommet shown in FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view showing a state in which a conventional grommet is assembled in an engagement hole of a panel.

5 is a partial detailed cross-sectional view of the grommet of FIG. 4 when the seal portion is bent inward and the grommet is assembled in the engagement hole of the panel.

[Explanation of symbols]

 20 grommet 30 grommet main body 31 base 32 head 34 seal part 35 rib 40 lock member

Claims (1)

[Scope of utility model registration request] 1. A hard lock member fitted and locked in an engagement hole of a panel, and a soft grommet main body into which a wire harness is inserted and fixed, and a lip-shaped seal portion at a base portion of the main body. In the grommet having the lock member fitted therein, ribs are provided from the tip to the root of the seal portion to reinforce the seal portion.