Automatically opening hinge assembly for portable electronic devices
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United States of America Patent
Stats
-
Mar 29, 2011
Grant Date -
Jul 2, 2009
app pub date -
Jun 5, 2008
filing date -
Dec 29, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hinge assembly (100) includes a shaft (13), a cam (14), a follower (15), a first spring (12), a control member (17), a second spring (16), and a fixing seat (18). The shaft defines a thread (1311). The cam has a cam surface (146), a cam hole (141) and an inner circumferential surface. The inner circumferential surface includes a protrusion (142) configured engaged the thread of the shaft. The control member has at least one reverse slot (173). The circumferential surface includes at least one block (184). The at least one block is received in the at least one reverse slot of the control member so as to lock the control member into the fixing seat. The hinge assembly allows for the automatic opening and closing of the device to which the hinge assembly is incorporated.
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Family
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