Roller for winding and unwinding a protective cover equipping a

Details Roller for winding and unwinding a protective cover equipping a Roller for winding and unwinding a protective cover equipping a

1996-09-23

1998-07-07

Nguyen, John Q.

Winding, tensioning, or guiding

Reeling device

With spring motor

254364, 160245, 185 39, 267168, B65H 7548, A47G 502, A47H 100

Patent

active

057756198

ABSTRACT:
A roller comprises: a support shaft bearing at either opposite end a bush supporting an external tubular element containing the shaft and destined to be a support element of a cover fixed thereto by one end; a motor to recall the roller by setting the tubular element in rotation about the shaft in an opposite direction to that followed during an unwinding of the cover, and constituted by at least two helix springs, separate but cooperating, which are coaxially keyed on the shaft; the ends of each spring being stably fixed on corresponding seats exhibited by a first support keyed on the shaft and a second support, axially fixed and rotatably mounted on the shaft, and solid to the tubular element.

REFERENCES:
patent: 571972 (1896-11-01), Janney
patent: 1550879 (1925-08-01), Clark
patent: 2248447 (1941-07-01), Wood
patent: 2942409 (1960-06-01), Morf
patent: 3242895 (1966-03-01), Hornby
patent: 3292684 (1966-12-01), Jines
patent: 4576762 (1986-03-01), Griffin et al.
patent: 5201897 (1993-04-01), Whiting

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