Movable or removable closures – With operator for movably mounted closure – Drive within closure housing
Patent
1978-11-07
1980-11-25
Kannan, Philip C.
Movable or removable closures
With operator for movably mounted closure
Drive within closure housing
745015R, E05F 1148
Patent
active
042350468
ABSTRACT:
An operating mechanism for the window in a motorcar door and the like includes guiding devices, including at least one deflecting element, which engage a wire, cable or other elongated tension member and guide the tension member on the door in a loop-shaped path when the tension member is driven in the path alternatively in two opposite, longitudinal directions. The motion of the tension member is transmitted to the window. The tension member stretches under the longitudinal stresses exerted thereon by the drive and the window and needs to be tensioned. According to the invention, a spring in a permanently stressed condition biases the deflecting element in a direction to lengthen the path of the tension member and for thereby compensating for slack in the engaged portion of the tension member when the tension member moves in one longitudinal direction, whereby the spring reaches a partly relaxed condition. A protecting mechanism protects the spring against return from the partly relaxed condition toward the stressed condition when the tension member moves in the opposite direction.
REFERENCES:
patent: 1606712 (1926-11-01), McArthur
patent: 1805326 (1931-05-01), Bunker et al.
patent: 3281991 (1966-11-01), Colell
patent: 3444649 (1969-05-01), Rivolier
patent: 4090329 (1978-05-01), Rampel
patent: 4108013 (1978-08-01), Sragal
patent: 4109417 (1978-08-01), Fogarollo
patent: 4145934 (1979-03-01), Sragal
Hess Hans-Peter
Schultheiss Wolfgang
Kannan Philip C.
Metallwerk Max Brose GmbH & Co. KG
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