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Protective ring for bunch

A beamline and axis technology, applied in the field of "single moving retaining ring, can solve the problems of deformation of the funnel-shaped part, damage to the seal, etc.

Inactive Publication Date: 2004-07-14
SUMITOMO WIRING SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Usually, when the wire harness coming out of the grommet is bent into a sharp acute angle, the funnel-shaped portion fitted in the through-hole is deformed and the periphery of the funnel-shaped portion breaks away from the lip of the groove base , thereby damaging the seal, allowing water to penetrate the

Method used

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  • Protective ring for bunch
  • Protective ring for bunch
  • Protective ring for bunch

Examples

Experimental program
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Embodiment Construction

[0107] Such as figure 2 and Figure 3A As shown, the grommet 10 according to a preferred embodiment of the present invention is manufactured in a single piece and is made of rubber or elastomer. The grommet 10 includes a funnel-shaped portion 12 having a conical surface with: an open end (end of larger diameter); a narrow end; a first tubular portion 11, Extending outwardly from said narrow end; a closed surface 20 at said flared end. The closure surface 20 is thin and has a communication channel substantially aligned with the diameter of the closure surface. A second tubular portion 21 protrudes from a wire receiving hole provided at the central portion of the communication channel. An outer annular groove 16 is provided near the flared end of said funnel-shaped portion 12 .

[0108]On the conical outer surface of the funnel-shaped portion 12, a plurality of funnel ribs 13 are provided. These funnel ribs 13 radiate in all directions from the narrow end on the conical ou...

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PUM

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Abstract

The grommet (10) with axis Z comprises a funnel-shaped portion (12) having a flared end, a narrowed end and a conical wall. The grommet (10) further comprises a tubular portion (11) extending outwardly from a circular joint section (25) formed at the narrowed end of the funnel-shaped portion (12). The funnel-shaped portion (12) comprises at least one means for improving the flexibility and space availability of the wire harness to be mounted, selected from the group consisting of an extended tubular portion (18) adapted to hold the water-trapping zone (A) of the wire harness, a structural configuration allowing the length along the axis Z of the funnel-shaped portion to be reduced and a plurality of funnel ribs having closely arranged first end sections (13a) that form a circular space (V) around the tubular portion (11).

Description

technical field [0001] The present invention relates to a grommet, in particular for mounting to a harness in a vehicle such as an automobile. More particularly, the present invention relates to a "single movement grommet" (or "one-way grommet") that is inserted into a through hole in a vehicle body panel. Such a grommet has a mechanical protection function, as well as a waterproof and dustproof function, at the insertion portion where the harness wire is inserted into the through hole. Background technique [0002] It is known to fit grommets to harnesses leading from the engine compartment of a motor vehicle into the passenger compartment. This type of grommet is installed around the through hole in the car body panel / baffle. Automotive body panels / partitions are used to separate the passenger compartment from the engine compartment. The grommet is used to protect the wiring harness passing through the through hole, and is used for waterproof and dustproof, and can be u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02
CPCB60R16/0222
Inventor 坂田勉
Owner SUMITOMO WIRING SYST LTD
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