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:
Oct. 26, 2021
Filed:
Jun. 20, 2018
Yuei Co., Ltd., Higashi-Osaka, JP;
Kota Ojima, Higashi-Osaka, JP;
Tomoki Hada, Higashi-Osaka, JP;
YUEI CO., LTD., Higashi-Osaka, JP;
Abstract
To provide a stage-corresponding caster device being entirely compact, able to smoothly and stably work, and able to easily get over a stage end face, a holder main bodyattached to an attached member B and having a pair of left and right side wall portions, a main wheel supporting memberin which the main wheelis pivoted to a lower portionand an upper portionis pivoted to the holder main body, a sub wheel supporting memberin which the sub wheelis pivoted to a front portionand a rear portionis pivoted to the main wheel supporting membercoaxially with the main wheel, and a slide rollerattached to the sub wheel supporting memberon a forward position to the main wheel, are provided; and the holder main bodyhas a guiding grooveinclined backward and downward in side view on the side wall portionto guide the slide roller, the front portionof the sub wheel supporting memberis oscillated downward by contact of the main wheelwith the stage end face Ja, the sub wheelis pressed to the stage upper face Jb, and the main wheelclimbs over the stage end face Ja.