Movable or removable closures – Stored in housing – Reciprocates vertically in and out of housing
Patent
1998-03-30
2000-09-12
Stodola, Daniel P.
Movable or removable closures
Stored in housing
Reciprocates vertically in and out of housing
49374, 494951, B60J 116, E05F 1138, E06B 716
Patent
active
061159670
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
The invention relates to a sealing arrangement and more particularly to seals for sealing openings in motor vehicles such as window glass openings, doors, and sun roofs.
In one known sealing arrangement of this type (Patent Document EP 0 193 133 A2) indentations are part of a pattern of roughness of microscopic size produced for example by sandblasting.
From U.S. Pat. No. 5,265,377 it is known per se to fix a strip of thermoplastic material on the base of a window sealing profile. The strip is provided with alternating ridges and furrows on a side which faces the window, with these ridges and furrows extending parallel to one another and at an angle to the longitudinal direction of the strip. The distance between adjacent ridges is so large that dirt or dust particles in the furrows can be conducted along into lateral gutters of the profile. This profile should thus have, above all, self-cleaning properties and protect the window from being scratched.
From EP 0 627 341 A1 it is known per se to provide a plastics profile which has a slide overlay on its sealing side. The slide overlay comprises at least one coextruded sealing rib extending in the longitudinal direction of the profile. Each sealing rib consists of thermoplastic material which is harder than that of the plastics material of the profile.
In other known sealing arrangements (DE 34 05 973 A1 and DE 35 06 410 A1) a cover strip serves to reduce the friction between a window glass and the sealing arrangement and thus to increase the relative slideability. The side of the cover strip facing the window glass is flat and smooth.
It is also known to sinter a polyamide powder onto the sealing profile to increase the slideability, and thereby to produce a molten-smooth, especially low-friction outer surface of a cover strip.
Furthermore, it is known to mount on the sealing profile a cover strip having flocking, in order to brush off moisture and foreign bodies from a window glass.
Particularly in the case of frameless window glass, such as one finds used in coupes or convertibles, these known types of cover strip have led however to inadequacies. Above all, under certain operating conditions, chiefly with wet window glass, squeaking or rumbling noises occur if the window glass is moved relative to the sealing arrangement. Annoying noises occur in particular with the ever increasing powered movement of the window glass.
Rattling and/or squeaking noises also occur if on the one hand, in the case of a closed door of a motor vehicle, relative movements occur between the door and the body, and if on the other hand a roof member, in particular a pop-up/sliding sunroof or a moon roof, of a motor vehicle is opened or closed.
The object of the invention is to reduce or even eliminate entirely noises which can arise through the movement of the window glass relative to the sealing arrangement or of other closable components of the motor vehicle relative to the associated opening in the vehicle body.
SUMMARY OF THE INVENTION
The objects of the present invention are achieved by a seal as described herein for sealing a closure member such as a window glass, door, or sunroof with respect to an aperture in the body of a motor vehicle. Such apertures in motor vehicles include window openings in vehicle doors, the door opening, and sunroof openings in the vehicle roof. The seal sealingly contacts a surface to close the aperture. The seal has a sealing profile, a cover strip fixed on the sealing profile, and grooves on the cover strip. The cover strip is arranged on a region of the sealing profile to face the surface against which the seal contacts to close the aperture.
The grooves effectively suppress noise, and prevents the generation of vibrations in the window glass and sealing arrangement system in the event of a movement of the window glass, these being vibrations which lead to noises, particularly squeaking and rumbling noises. It is believed that such noises are created from a constant alternation between static friction and sliding friction (slip-s
REFERENCES:
patent: 4442156 (1984-04-01), Yamaguchi
patent: 4897298 (1990-01-01), Otawa et al.
patent: 5265377 (1993-11-01), Iwasa et al.
patent: 5343655 (1994-09-01), Miyakawa et al.
Meteor Gummiwerke K.H. Badje GmbH
Stodola Daniel P.
Thompson Hugh B.
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