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:
Aug. 04, 2009
Filed:
Mar. 17, 2005
Yoshio Ogimura, Hyogo-ken, JP;
Takayuki Kikuchi, Hyogo-ken, JP;
Kazuya Yuge, Hyogo-ken, JP;
Yoshinobu Ishikawa, Tokyo, JP;
Yoshio Ogimura, Hyogo-ken, JP;
Takayuki Kikuchi, Hyogo-ken, JP;
Kazuya Yuge, Hyogo-ken, JP;
Yoshinobu Ishikawa, Tokyo, JP;
Toshiba Elevator Kabushiki Kaisha, Tokyo, JP;
Abstract
In order to suppress speed irregularity of step rollers () in a passenger conveyor, a bent section () is formed in a step guide rail () and a restraining member () is provided upstream thereof, the shape of the height of the bent section () and the restraining member () is corrected beforehand by the amount of the compression of resilient members of the step rollers (), which are formed with such resilient members around their shafts, by the compressive force acting between the bent section () and restraining member (). Thus generation of speed irregularity of the steps () is suppressed and passenger comfort is improved. Also, by providing a recess () in the step guide rail (), gripping of the step rollers () as they execute rolling movement along the undersurface of the restraining member () from below can be avoided, thereby preventing damage to the step rollers (), restraining member () and step guide rail ().