Movable or removable closures – Closure seal; e.g. – striker gasket or weatherstrip – Tubular or tubular portion
Patent
1996-05-10
1998-10-27
DePumpo, Daniel G.
Movable or removable closures
Closure seal; e.g., striker gasket or weatherstrip
Tubular or tubular portion
494751, 277184, E06B 722
Patent
active
058263780
ABSTRACT:
A sealing strip for sealing between a flange defining the door opening, such as in a motor vehicle body, and the door of the opening, comprises a channel-shaped gripping part for gripping the flange and supporting a hollow tubular sealing part, preferably made of sponge rubber. The latter is partially compressed between the flange and the closing door so as to provide a barrier against ingress of moisture and draft. In order to provide improved blocking of acoustic energy, so as to reduce the amount of exterior noise (road noise, aerodynamic noise) transmitted into the interior of the the vehicle, the hollow tubular sealing part supports a metal wire running lengthwise along and within the hollow tube and supported from the tubular side wall so as to be capable of vibrating in a transverse direction. The mass of the wire and the rigidity with which it is supported are such that the resonant frequency with which the wire vibrates is less than a frequency band of acoustic energy to be attenuated, whereby the additional material tends to vibrate in opposition to, and thus attenuates, acoustic energy within that frequency band.
REFERENCES:
patent: 2226354 (1940-12-01), Barr
patent: 4455785 (1984-06-01), Wahr et al.
patent: 4676493 (1987-06-01), Helbig
patent: 4926600 (1990-05-01), Mesnel
patent: 4929490 (1990-05-01), Iwasa
patent: 5050349 (1991-09-01), Goto et al.
JP-A-59 0409037.
DePumpo Daniel G.
Draftex Industries Limited
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