Mechanism for opening and closing an openable apparatus

Details Mechanism for opening and closing an openable apparatus Mechanism for opening and closing an openable apparatus

1991-03-25

1992-06-16

Larson, Lowell A.

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

Hinge

Resiliently biased hinge

16354, 16357, 16374, E05F 108, E05D 700

Patent

active

051215217

ABSTRACT:
A mechanism for opening and closing an openable apparatus has a body consisting of a first body portion and a second body portion. The first body portion is rotated about a pivotal axis between the closed position and the fully opened position. An arcuated gear portion having a center falling on the pivotal axis is provided. A one-way damper mechanism is connected to the gear portion directly or via a transmission gear and comprises a rotary gear rotated in cooperation with the opening and closing movements of the first body portion and a rotational speed control device for controlling the rotational speed of the first body portion when the first body portion is closed. In cooperation with the movement of the first body portion between the closed position and the fully opened position, the rotary member is rotatable about the pivotal axis between a first position at which the first body portion is closed and a second position at which the first body portion is fully opened. The gear portion is formed on the rotary member, and the one-way damper mechanism is provided in the first body portion, or the gear portion is formed in the first body portion and the one-way damper mechanism is provided on the gear portion.

REFERENCES:
patent: 2219358 (1940-10-01), Economides
patent: 2322933 (1943-06-01), Harmon et al.
patent: 3123196 (1964-03-01), Paone et al.
patent: 4817240 (1989-04-01), Sovis, Jr. et al.

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