Positioning structure for pivotal shaft

Details Positioning structure for pivotal shaft Positioning structure for pivotal shaft

2005-07-20

2008-08-19

Sandy, Robert J (Department: 3677)

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

Hinge

Including means to hold or retard hinged members against...

C016S354000

Reexamination Certificate

active

07412752

ABSTRACT:
A positioning structure for a pivotal shaft comprises a positioning device for use in the pivotal shaft. The positioning structure is located between a base and a lid of an electronic product, wherein an inner sleeve is pivotally connected to an outer sleeve through an elastic device. The positioning device is composed of a rotation ring and a ring cover. A toothed ring is mounted on each side of the rotation ring, and a limit block is protrudent from the edge of the rotation ring. The ring cover has a locking trench, and the toothed rings are inserted into the locking trench. The elastic device is pre-rotated. When the push-button switch is separated from the buttonhole by pressing, the lid is lifted up by the anti-twist force and the lower edge of the lid is exactly stopped by the limit block for positioning the lid to a predetermined angle automatically.

REFERENCES:
patent: 3484831 (1969-12-01), Teiji
patent: 5109572 (1992-05-01), Park
patent: 5185790 (1993-02-01), Mischneko
patent: 6762928 (2004-07-01), Lo
patent: 2004/0032708 (2004-02-01), Lo
patent: 2007/0010299 (2007-01-01), Lai et al.
patent: 02172379 (1990-07-01), None
patent: 02238484 (1990-09-01), None

Affiliated with

Also associated with

Rating

Positioning structure for pivotal shaft does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Positioning structure for pivotal shaft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positioning structure for pivotal shaft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4003420