Opening and closing device

Details Opening and closing device Opening and closing device

2006-04-18

2006-04-18

Joyce, William C. (Department: 3682)

Machine element or mechanism

Gearing

Backlash take-up

C074S530000, C074S42100R

Reexamination Certificate

active

07028573

ABSTRACT:
An opening and closing device for moving a movable member which includes a drive gear connected to a power source, a driven gear geared with the drive gear, an immovable portion supporting the drive gear and the driven gear, and a dynamic transmission mechanism connected to the driven gear so that the driven gear and the dynamic transmission mechanism rotate together as a unit. The dynamic transmission mechanism transmits a drive force of the power source from the driven gear to the movable member. A direction of a rotational force affecting the driven gear via the dynamic transmission mechanism in accordance with a state of the movable member fluctuates. The opening and closing device further includes a friction member located at least at one position between relatively movable facing surfaces of the immovable portion, the drive gear, the driven gear, and the dynamic power transmission mechanism.

REFERENCES:
patent: 2627118 (1953-02-01), Young
patent: 4688448 (1987-08-01), Hollis et al.
patent: 5063808 (1991-11-01), Hill
patent: 6446390 (2002-09-01), Bandemer et al.
patent: 298 14 419 (1998-12-01), None
patent: 1077146 (1967-07-01), None
patent: 1 584 116 (1969-03-01), None
patent: 2000-335245 (2000-12-01), None
patent: WO 00/36259 (2000-06-01), None

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