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:
Mar. 30, 2010
Filed:
May. 18, 2006
Norio Shirokoshi, Nagano, JP;
Satoru Kimura, Osaka, JP;
Norio Shirokoshi, Nagano, JP;
Satoru Kimura, Osaka, JP;
Harmonic Ad, Inc., Azumino-shi, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma-shi, JP;
Abstract
A brake-equipped retracting device () returns a liquid crystal display device () from a deployed position (B) to a stored position (A) using an elastic returning force of a spiral spring () that is wound up when the liquid crystal display device () is opened by the rotational force of a motor. A braking force for preventing the liquid crystal display device () from returning with too much force is applied to an input shaft () of a reducer by having a rope () whose tensile force increases and decreases in relation to the opening and closing of the liquid crystal display device () be wound around a slip clutch () that is connected to the input shaft (). In emergency situations such as when the rope () breaks, a centrifugal grip () of a rotation-restraining mechanism () strikes an engagement notch surface () on a fixed side, and the rotation of the input shaft () is forcibly halted. A retracting device for a liquid crystal display device comprising a braking device that has a simple structure, is reliable, is highly safe, and is low in cost can be realized.