Variable friction hinge

A variable friction hinge is mounted between a cover and a base of an electronic device and has a pintle, a stationary leaf and a washer assembly. The pintle is connected to the cover. The stationary leaf is connected to the base and has an activating panel with an activating edge. The washer assemb...

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Bibliographische Detailangaben
1. Verfasser:	CHEN POUAN
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION FIXED CONSTRUCTIONS KEYS LOCKS SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	A variable friction hinge is mounted between a cover and a base of an electronic device and has a pintle, a stationary leaf and a washer assembly. The pintle is connected to the cover. The stationary leaf is connected to the base and has an activating panel with an activating edge. The washer assembly has a movable washer, an abrasion washer and a biasing member. The movable washer selectively abuts the activating edge of the activating panel and has an elongated hole slidably mounted securely around the pintle. The movable and the abrasion washers have teeth corresponding to and selectively engaging each other, causing less friction when engaged and more friction when disengaged. When rotated the movable washer selectively disengages the teeth causing the hinge to have greater friction when being rotated one way than the other.