Patent ID: 7488136
Filing Date: 2009-02-10
Classification: F16M,Y10S,Y10T

Abstract:
1. An electric device, comprising: a main body; a supporting crutch; and a pivot mechanism for connecting the main body to the supporting crutch, wherein the main body is rotated around the supporting crutch through the pivot mechanism, and the pivot mechanism comprises: a first bearing shim having three limiting salients, each of which has a first sidewall, a second sidewall and two inclined surfaces tilted from the second sidewall to the first sidewall and disposed at corresponding two sides of the first bearing shim; and a second bearing shim having six sliding salients and six extension arms, wherein each of the extension arms is a long shaped structure, each of the sliding salients is disposed at a distal end of one of the extension arms, the sliding salients alternately protrude toward the corresponding two sides of the second bearing shim, the main body is positioned at a first position relative to the supporting crutch when three of the sliding salients are disposed on the first sidewalls, and the main body is positioned at a second position relative to the supporting crutch when the three of the sliding salients are disposed on the second sidewalls, wherein three of the sliding salients cross the first sidewalls and slide on the inclined surfaces to the second sidewalls by a first force, and three of the sliding salients cross the second sidewalls and slide on the inclined surfaces to the first sidewalls by a second force larger than the first force.