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:
May. 07, 2019
Filed:
Aug. 24, 2015
Delta Tooling Co., Ltd., Hiroshima-shi, JP;
Delta Tooling Co., Ltd., Hiroshima-shi, JP;
Abstract
A back cushioning member having a tensile structure to reduce discomfort of a seated person. A lower lumbar supportinstalled in a lower portion of a back frameand an upper lumbar supportinstalled in an upper portion of the lower lumbar supportare provided. Having vertically two lumbar supportsenables a first support plateof the lower lumbar supportto be provided so as to correspond mainly to a pelvis part where the sense of contact is hardly perceived, whereby the back cushioning memberhaving a tensile structure can be provided with a predetermined restoring force at a predetermined applicable elastic strength. Since the pelvis part located at a lower portion of a human body can be supported reliably, prevention of collapse of posture can be facilitated. Since the upper lumbar supportcorresponds mainly to a lumbar part, by setting the upper lumbar supportto provide a softer springiness than the lower lumbar supportthe sense of contact in the lumbar part is suppressed and the feeling during seating can be improved.