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:
Jul. 22, 2008
Filed:
Feb. 28, 2003
Yoshinobu Ishikawa, Tokyo, JP;
Tadashi Munakata, Tokyo, JP;
Yoshio Ogimura, Saitama, JP;
Nobuhiko Teshima, Kokubunji, JP;
Shigeo Nakagaki, Saitama, JP;
Hitoshi Kawamoto, Tokyo, JP;
Kenichi Fujii, Hyogo, JP;
Tomohiko Matsuura, Hyogo, JP;
Yoshifumi Ikeda, Tokyo, JP;
Kazuhisa Hara, Tokyo, JP;
Takayuki Kikuchi, Hyogo, JP;
Yoshinobu Ishikawa, Tokyo, JP;
Tadashi Munakata, Tokyo, JP;
Yoshio Ogimura, Saitama, JP;
Nobuhiko Teshima, Kokubunji, JP;
Shigeo Nakagaki, Saitama, JP;
Hitoshi Kawamoto, Tokyo, JP;
Kenichi Fujii, Hyogo, JP;
Tomohiko Matsuura, Hyogo, JP;
Yoshifumi Ikeda, Tokyo, JP;
Kazuhisa Hara, Tokyo, JP;
Takayuki Kikuchi, Hyogo, JP;
Toshiba Elevator Kabushiki Kaisha, Tokyo, JP;
Abstract
A mountainous or valley-shaped curved partis provided in a part of a footstep guide railfor guiding a movement of footstep rollerslinked by a footstep chain, the part being positioned in the vicinity of a drive sprocket. Consequently, owing to meshing of the footstep rollerswith the drive sprocket, an unevenness in velocity of the footstep rollersis absorbed by the curved part, so that a moving velocity of the footstep rollersmoving on the downstream of the curved partis maintained constantly, suppressing vibrating of the footsteps