Damper device for a door having dual-direction operating biasing

Details Damper device for a door having dual-direction operating biasing Damper device for a door having dual-direction operating biasing

1988-01-28

1989-05-09

Butler, Douglas C.

Spring devices

Miscellaneous

49386, 188290, 188382, 220334, 267221, 267136, 312319, 16 49, 16 72, 16 81, 16DIG10, F16F 100

Patent

active

048282367

ABSTRACT:
A damper device comprises damping structure and a spring device and is advantageously used for a door swingably supported by a shaft to be opened and shut between a totally shut position and a totally opened position and opened under the influence of its own weight at least from a position intermediate of the aforementioned two positions to the totally opened state. The damper element acts against the motion of the door. The spring element biases the door in the shutting direction at least from the intermediate position to the totally opened position.

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