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:
Nov. 13, 2007
Filed:
Sep. 08, 2005
Norio Shirokoshi, Nagano-ken, JP;
Naomi Shirasawa, Nagano-ken, JP;
Norio Shirokoshi, Nagano-ken, JP;
Naomi Shirasawa, Nagano-ken, JP;
Harmonic AD, Inc., Nagano-Ken, JP;
Abstract
In a brake-equipped retracting mechanism, rotational force of a motor is used to open a liquid crystal display device from a retracted position to an open position, a power spring is wound up in conjunction with this opening operation, and elastic restoring force thereof is used to return the liquid crystal display device from the open position to the retracted position. A rope for developing a greater or smaller tensile force in conjunction with opening and closing of the liquid crystal display device is wound around a slip clutch linked to a reducer input shaft, whereby braking force for preventing the liquid crystal display device from an abrupt return is applied to the reducer input shaft. The braking force gradually decreases as the liquid crystal display device returns to the retracted position, and the liquid crystal display device can therefore be returned at a substantially constant speed.