Chairs and seats – Bottom or back with means to alter contour
Patent
1990-09-25
1992-02-11
Brittain, James R.
Chairs and seats
Bottom or back with means to alter contour
297460, A47C 300, A47C 2500
Patent
active
050870980
ABSTRACT:
A lumbar support device for use in a vehicle seat, including a brake device for restricting rotation of its drive shaft, a link member, and a lumbar support member. A rotation force from the drive shaft is transformed via the link member to the lumbar support member, which makes simplified the structure of the device.
REFERENCES:
patent: 4296965 (1981-10-01), Sakurada et al.
patent: 4623193 (1986-11-01), Lieker
patent: 4913495 (1990-04-01), Nagasaka et al.
Brittain James R.
Gardner James M.
Tachi-S Co. Ltd.
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