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:
Dec. 02, 2025
Filed:
Jul. 30, 2020
Daifuku Co., Ltd., Osaka, JP;
Masashige Iwata, Hinocho, JP;
Hiroaki Nakamura, Hinocho, JP;
Daifuku Co., Ltd., Osaka, JP;
Abstract
A rail unit includes an upper plate segment extending in a width direction, a lower plate segment extending in the width direction and at a position in a downward direction from the upper plate segment, and an intermediate plate segment extending in a vertical direction and joining an edge of the upper plate segment in a first width direction and an edge of the lower plate segment in a first width direction. A power feeder is located in a space defined by the upper plate segment, the intermediate plate segment, and the lower plate segment in the rail unit. The upper plate segment includes a traveling surface facing in an upward direction. The lower plate segment includes a lower flat portion extending in a traveling path direction and the width direction, and a groove protruding in the downward direction from the lower flat portion and extending continuously in the traveling path direction.