Invention Grant
- Patent Title: Chair having an adjustable backrest for spinal protection
- Patent Title (中): 椅子具有用于脊柱保护的可调式靠背
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Application No.: US13142625Application Date: 2010-05-10
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Publication No.: US08690249B2Publication Date: 2014-04-08
- Inventor: Jig Won Kang , Kyong Ja Choi
- Applicant: Jig Won Kang , Kyong Ja Choi
- Agency: Cantor Colburn LLP
- Priority: KR10-2009-0072207 20090806
- International Application: PCT/KR2010/002946 WO 20100510
- International Announcement: WO2011/016614 WO 20110210
- Main IPC: B60N2/22
- IPC: B60N2/22
Abstract:
The present invention relates to a chair having an adjustable backrest for spinal protection in that an inside of a backrest structure is provided with an auxiliary backrest for protecting a lumbar vertebrae, and a rack and pinion structure is employed in the backrest and the auxiliary backrest in such a manner that the backrest slides vertically and the auxiliary backrest also slides vertically by the same ratio such that the backrest and the auxiliary backrest can be adjusted appropriately and used flexibly to match the sitting height of the person sitting on the seat, thereby making it possible to provide effective protection to the spinal joints of the waist, back and neck of the user.
Public/Granted literature
- US20120146376A1 CHAIR HAVING AN ADJUSTABLE BACKREST FOR SPINAL PROTECTION Public/Granted day:2012-06-14
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