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.

Date of Patent:
Oct. 01, 2024

Filed:

Dec. 08, 2023
Applicants:

Qingdao University of Technology, Qingdao, CN;

Ziguo Wang, Qingdao, CN;

Inventors:

Ziguo Wang, Qingdao, CN;

Yuyan Sun, Qingdao, CN;

Assignees:

Qingdao University of Technology, Qingdao, CN;

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 75/44 (2006.01);
U.S. Cl.
CPC ...
B65H 75/4465 (2013.01); B65H 75/4471 (2013.01); B65H 2701/1133 (2013.01);
Abstract

A flexible layer support structure and a retractable device is disclosed. The flexible layer support structure includes a first thin sheet and a second thin sheet arranged in parallel with each other, as well as and a folding spring group sandwiched between the first thin sheet and the second thin sheet and arranged in parallel. The curved elastic pieces in the folding spring group are smoothly overlapped and connected with the thin sheets, so as to enclose a hollow thin-walled elastic structure that can be overlapped and rolled up, can be automatically straightened and has a flat surface. The retractable device includes a winding shaft, a pressure roller, and a flexible layer support structure installed on the winding shaft. The flexible layer support structure of the present disclosure has the advantages in lightweight, high storage ratio, large unfolded area, simple winding, large load bearing capacity, and less damage.


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