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. 27, 1979
Filed:
Dec. 23, 1976
Yoshihiko Satou, Katsuta, JP;
Katsuya Teranishi, Katsuta, JP;
Hitachi, Ltd., , JP;
Abstract
An escalator comprising steps linked in an endless belt, front wheels and rear wheels for each of the steps supporting the step through a front shaft and a rear shaft respectively, guide rails for guiding the rolling movement of the front and rear wheels respectively, and projections extending axially of the rear shaft for each of the steps and projection upthrust rails mounted in a rear wheel portion of each of the steps, each of the projection upthrust rails being arranged in a manner to be juxtaposed against one of the projections and adapted to be brought into engagement with the projection to prevent an inadvertent pivotal upward movement of the step when this tendency occurs, whereby the accident of the shoes of passengers and other objects being caught in a riser portion of the step due to an inadvertent pivotal upward movement of the step can be avoided.