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:
Jan. 27, 1981
Filed:
Aug. 10, 1979
Masamoto Shuto, Tokyo, JP;
Japan Air Line Co., Ltd., Tokyo, JP;
Abstract
A current collection system for a travelling body comprising main rigid trolley rails continuously arranged one after another in the direction of the track of the travelling body; an auxiliary rigid trolley rail which is arranged between the confronting ends of the adjacent main rigid trolley rails and which has one end thereof supported at a fixed support point and the other end thereof supported at a movable support point; a pair of contactor-carrying plates which are attached to the travelling body and are arranged to have said main and auxiliary rigid trolley rails held between the pair of the plates; and two pairs of contactors which are arranged to press each of the main and auxiliary trolley rails on both sides thereof separately from each other. These pairs of contactors are arranged to come into contact alternately with the main and auxiliary rigid trolley rails while the travelling body is on the move. Meanwhile, at least one end of the auxiliary trolley rail is formed to have tapered faces and thus to have a gradually decreasing width for smooth transition of the contact of the contactors with the trolley rails from the main trolley rail to the auxiliary trolley rail, and vice versa.