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. 21, 2025
Filed:
May. 12, 2023
Remacro Technology Co., Ltd., Jiangsu, CN;
Remacro Technology Co., Ltd., Suzhou, CN;
Abstract
Provided are a lower-back supporting apparatus, a backrest supporting frame, and a seating unit. The lower-back supporting apparatus includes a lower-back supporting plate; a lower mounting plate; two supporting structures, provided between the lower-back supporting plate and the lower mounting plate, hinged to the lower-back supporting plate and the lower mounting plate, respectively; and an extendable and retractable part, including an extendable and retractable end hinged to the lower-back supporting plate or the supporting structure, so as to drive the lower-back supporting plate away or close to the lower mounting plate. The lower-back supporting plate may be lifted and lowered by cooperating the extendable and retractable part with the supporting structure; the volume of lower-back supporting apparatus may be effectively reduced by adopting the extendable and retractable part; the whole of the extendable and retractable part is easy to maintain and replace.