Back support truck seat back
First Claim
1. A back support truck seat comprising, in combination,a main body,a pair of hinged side support arms secured to said main body for providing pelvic support for a driver,an elongated brace plate secured at one end to the seat bottom providing support means for said main body,a back brace secured to said main body and having a pair of parallel, spaced apart channel members for slidably and adjustably receiving the opposite end of said elongated brace plate for altering the height of said main body with respect to said seat bottom,one of said pair of channel members having a slot opening on one longitudinal side edge, for the receiving of an offset pin of a locking lever, which is fixedly secured to said back brace, and the adjacent longitudinal side edge of said elongated brace plate having a plurality of equally spaced apart openings for registration with said slot opening, so that said offset pin when received in said slot opening and in any one of said openings in said brace plate serves as locking means for a height adjustment of said main body, andan inflatable bladder secured in said main body for supporting the lower back of a driver.
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Accused Products
Abstract
This seat back provides a variable low back support for truck drivers, and it consists primarily of a back rest of a seat, which is adjustable in height to suite the driver, and it includes an inflatable lower portion for supporting the driver'"'"'s lower back, thus decreasing driver fatigue. The bladder, of the lower portion, is expanded by a common stem means or is connected to the truck'"'"'s air supply, and the top of the seat back includes a head rest for further driver comfort.
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Citations
6 Claims
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1. A back support truck seat comprising, in combination,
a main body, a pair of hinged side support arms secured to said main body for providing pelvic support for a driver, an elongated brace plate secured at one end to the seat bottom providing support means for said main body, a back brace secured to said main body and having a pair of parallel, spaced apart channel members for slidably and adjustably receiving the opposite end of said elongated brace plate for altering the height of said main body with respect to said seat bottom, one of said pair of channel members having a slot opening on one longitudinal side edge, for the receiving of an offset pin of a locking lever, which is fixedly secured to said back brace, and the adjacent longitudinal side edge of said elongated brace plate having a plurality of equally spaced apart openings for registration with said slot opening, so that said offset pin when received in said slot opening and in any one of said openings in said brace plate serves as locking means for a height adjustment of said main body, and an inflatable bladder secured in said main body for supporting the lower back of a driver.
Specification