Opening and closing device

Details Opening and closing device Opening and closing device

2006-10-20

2010-10-19

Batson, Victor (Department: 3677)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Resiliently biased hinge

C016S331000, C016S332000, C016S334000, C016S330000, C361S679010, C361S679300, C361S679210

Reexamination Certificate

active

07814619

ABSTRACT:
An opening and closing device which includes a roughly cylindrical stator, a concavo-convex stator cam provided at an end of the stator, a ring-like rotor rotatably disposed relative to the stator, a rotor cam opposedly protruding from an inner periphery or outer periphery of the rotor, and a spring pushing the rotor against the stator. The rotor cam slides on the concavo-convex stator cam during the opening and closing operations. In this structure, the opening and closing device is openable roughly up to 180°, and a force in the opening direction is applied to a movable housing even when the movable housing is opened not less than 165°. Accordingly, this opening and closing device eliminates wobbling in the opening and closing direction, and ensures reliable opening and closing operations and retention at a predetermined angle.

REFERENCES:
patent: 7111361 (2006-09-01), Li et al.
patent: 7150072 (2006-12-01), Huang et al.
patent: 7328483 (2008-02-01), Chen et al.
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patent: 7373692 (2008-05-01), Kfoury
patent: 2003/0153284 (2003-08-01), Minami et al.
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patent: 2005/0132534 (2005-06-01), Chen et al.
patent: 2006/0096064 (2006-05-01), Ma et al.
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patent: 2006/0123596 (2006-06-01), Chen et al.
patent: 2006/0174443 (2006-08-01), Takagi et al.
patent: 2008/0128156 (2008-06-01), Kuwajima et al.
patent: 2661993 (2004-12-01), None
patent: 2004-245342 (2004-09-01), None

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