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:
Oct. 06, 2015
Filed:
Apr. 12, 2011
Eiji Kawai, Tokyo, JP;
Hajime Nakamura, Tokyo, JP;
Yoshiyuki Hadano, Tokyo, JP;
Tadashi Okamura, Tokyo, JP;
Eiji Kawai, Tokyo, JP;
Hajime Nakamura, Tokyo, JP;
Yoshiyuki Hadano, Tokyo, JP;
Tadashi Okamura, Tokyo, JP;
Tachikawa Corporation, Tokyo, JP;
Abstract
An operation apparatus of a sunlight shielding apparatus is provided which is equipped with a fail-safe function so as not to hinder behavior of a dweller or the like, and, in usual operation, unnecessary activation of the fail-safe function is prevented, so that enhanced operability can be realized. In a sunlight shielding apparatus in which an operation cord of an endless type is suspended from a pulley supported so as to be capable of rotating in a head box, and a driving shaft is rotated based on an operation of the operation cord by way of the pulley so as to drive a shielding member, the operation cordis made into an endless type by coupling via a coupling section which is configured to be decoupled with a predetermined first pull force, and a torque limiteris interposed between the pulleyand the driving shaft, the torque limiter being configured to run idle with a second rotation torque which is smaller than a first rotation torque which is exerted on the pulley by the first pull force.