Gear-case arrangement for a motor-gear drive unit, in particular

Details Gear-case arrangement for a motor-gear drive unit, in particular Gear-case arrangement for a motor-gear drive unit, in particular

1996-08-23

1998-11-17

Luong, Vinh T.

Machine element or mechanism

Elements

Gear casings

74425, F16H 5702

Patent

active

058362193

ABSTRACT:
In a motor-gear drive unit, particularly for automobile window lifters and the like, a moisture-tight closure of the gear case (2) is provided by a gear case cover (4). The cover (4) is preferably injection-molded from plastic and can be connected to the gear case (2) nonpositively by a press-fitted, insertable clamp fastening. Specifically, the clamp fastening takes the form of a peripheral web (4.1) capable of being pressed into a peripheral channel-like groove (2.2), where the peripheral web (4.1) and the peripheral channel-like groove (2.2) are provided, respectively, on either the case (2) or the cover (4). If the peripheral web (4.1) is provided on the cover (4), a peripheral scraping rib (4.11) is molded on the inside surface of the web (4.1). An elastic gasket layer (5) having a static sealing edge (5.1) is applied, e.g., injection-molded onto an outer surface of the peripheral web (4.1).

REFERENCES:
patent: 4191060 (1980-03-01), Sessa
patent: 4216624 (1980-08-01), Blankenburg et al.
patent: 4314692 (1982-02-01), Brauer et al.
patent: 4471251 (1984-09-01), Yamashita
patent: 4534233 (1985-08-01), Hamaguchi
patent: 4770056 (1988-09-01), Becker et al.
patent: 4821589 (1989-04-01), Fukumoto et al.
patent: 4895048 (1990-01-01), Key et al.
patent: 5095766 (1992-03-01), Knappe et al.

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