Vehicle seal

Details Vehicle seal Vehicle seal

1995-06-07

2000-06-13

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal for other than internal combustion engine, or...

277637, 277651, 277906, 277921, 494751, 494921, 494931, F16J 1512

Patent

active

060739363

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND

This invention relates to a vehicle seal comprising an elastic molded sealing member with holes through which clips on a fastening rail made of plastics material extend into anchoring holes in a vehicle body.
It is known to supply the molded seals made generally of rubber and the fastening rails of plastics material made by different manufacturers to the manufacturers of motor vehicles. Molded seals and fastening rails are pre-assembled in the factory by the molded seal with its holes being "buttoned on" to the clips of the fastening rail. Subsequently, this pre-assembled unit has the heads of the clips projecting from the molded sealing pressed into the anchoring holes in the vehicle body and latched in place therein. However, the comparatively high production cost to the vehicle manufacturer of this known procedure is disadvantageous. DE 41 05 032 A1 shows one such fastening rail.
From DE 1 293 616 B it is known to join a sealing lip of sponge rubber on to an extruded, waterproof, hollow rubber profile in a molding tool. Subsequently, the heads of round fastening bolts are pressed into the holes in the free surfaces of the rubber profile. The bolt stems are pushed through receiving bores in the body panel and are anchored there. The profile is totally floppy.
From U.S. Pat. No. 3,059,292A it is known to form circular fastening cones of elastomer spaced from one another on a carrier profile made of an elastomer. Into an axial hollow chamber of each fastening cone is set a pressure pin whose head extends into a sealing profile of foam or sponge rubber fixed to the carrier profile. The finished profile is floppy and is mounted so that each fastening cone is set into a receiving bore in a body panel. Then, with a finger, pressure is exerted on the head of the pin at the fastening point until an undercut of the fastening cone snaps into the receiving bore.


SUMMARY OF THE INVENTION

It is the object of the invention to reduce the assembly cost to the vehicle manufacturer and to improve the vehicle seal.
This is achieved in accordance with the invention in a vehicle seal of the type first referred to above, in which the fastening rail is fixedly connected to the molded sealing member. The fixed connection of the fastening rail to the molded sealing member is done by the supplier of the vehicle manufacturer, so that the manufacturer is then only concerned with the handling and assembly of the finished vehicle seal. By means of the fixed connection of the fastening rail and molded sealing member to one another, their positions relative to one another are optimized.
The fastening section can be fixed to the molded sealing member by means where the molded sealing member is injected onto and vulcanized to the fastening rail. This leads to a positionally accurate and tight connection between the fastening rail and the molded seal along the whole length of the vehicle seal.
By spacing the molded sealing member circumferentially from the clips to provide all-around spacing, the clips are in no way impaired in their function by the molded seal. This is not always guaranteed with prior art seals, since there, in the pre-assembled state of the vehicle seal, the molded seal must be held right over the walls of the anchoring holes.
A molding tool for the manufacture of a vehicle seal of the present invention is also provided. The mold includes a cap which ensures that during the formation of the molded sealing member on the fastening rail no material of the molded sealing member can penetrate into the free space between the clips and the molded sealing member.
Further features and advantages of the invention will become apparent from the following description of embodiments of the invention which are given by way of example and which are shown in the drawings.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-section through a vehicle seal located in a molding tool;
FIG. 2 is a side view, on a reduced scale, of a fastening rail used in FIG. 1;
FIG. 3 is the plan view of the fastening rail shown in FIG. 2;

REFERENCES:
patent: 2546049 (1951-03-01), Weaver et al.
patent: 2601512 (1952-06-01), Gagnier
patent: 2716787 (1955-09-01), Harris
patent: 3059292 (1962-10-01), General Motors
patent: 3110938 (1963-11-01), Beck et al.
patent: 3182120 (1965-05-01), Duhn
patent: 3309817 (1967-03-01), Fisher
patent: 4165083 (1979-08-01), Dochnahl
patent: 4614347 (1986-09-01), Krusehwitz
patent: 4666206 (1987-05-01), Hough
patent: 4864774 (1989-09-01), Onishi et al.
patent: 5433038 (1995-07-01), Duphy

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