FIELD: transportation.
SUBSTANCE: invention relates to a device and method of providing a motor vehicle seat assembly and, in particular, to a manually adjustable backrest support for a seat backrest. Motor vehicle seat assembly comprises a pair of carcass elements, an upper back support comprising a tubular member, a bearing surface and a retainer. Tubular element is pivotally attached to a pair of frame elements. Support surface comprises rigid flat base attached to tubular element. Fixture functionally connects the first end of the tubular element with the frame element for fixation of the tubular element in one of multiple positions between the folded position and fully raised position.
EFFECT: improved comfort during use.
19 cl, 20 dwg
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