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:
Apr. 07, 2020
Filed:
Mar. 23, 2015
Komatsu Ltd., Minato-ku, Tokyo, JP;
Katsuhiro Tsutsumi, Hitachinaka, JP;
Takehito Takahashi, Hitachinkaka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A ladder includes: a front connecting member and a rear connecting member at a top step, respective upper ends of which are connected to a lateral side of a vehicle body in a pivotally movable manner and are juxtaposed with a predetermined space therebetween in a vehicle front-back direction; a front connecting member and a rear connecting member which are provided at a step under the top step, and respective upper ends of which are connected in a pivotally movable manner to both ends in the vehicle front-back direction of a step board. The front connecting member and the rear connecting member at least at the top step among steps positioned above a lowest step are rigid members. The front connecting member and the rear connecting member at the lowest step among steps positioned under the top step are elastically deformable.