The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
Nov. 16, 2004
Takehiko Tanaka, Tokyo, JP;
Hisahiro Tanaka, Chiba, JP;
Takehiko Tanaka, Tokyo, JP;
Hisahiro Tanaka, Chiba, JP;
Sony Corporation, , JP;
Abstract
A torsion coil spring spring-biases a rotary plate in such direction that a display unit may be rotated around rotary shafts, so as to rise from a horizontal position. An extension spring spring-biases the display unit, so that the display unit may be changed from an anti-rising direction to a rising direction while the display unit is being rotated, whereby a driving torque may become substantially constant against the weight of the display unit. One end of the extension spring is engaged with the rotary plate and the other end thereof is engaged with an engagement pin disposed at a position displaced from the center of the rotary shaft of the display unit. The length of the extension spring becomes longest while the rotary plate is being tilted and rotated. Thus, the electronic equipment tilting and rotating apparatus can tilt and rotate the display unit with application of a necessary and minimum driving torque.