Patent ID: 7984950

Claim:
A height adjusting device for adjusting a height of a seat for an automobile, said automobile seat including a seat cushion having first and second spaced apart side frames, and spaced apart brackets provided on predetermined installation-surfaces for supporting said seat, said height adjusting device comprising: a linkage base frame provided between said first and second side frames and said brackets so as to be vertically swingable, so that said seat is supported through said linkage base frame to said brackets so as to be vertically movable; said linkage base frame comprising a pair of forward linkage members spaced apart from each other, a first connecting shaft interconnecting said forward linkage members, a pair of rearward linkage members spaced apart from each other, and a second connecting shaft interconnecting said rearward linkage members, each of said forward and rearward linkage members being bridged between corresponding one of said first and second side frames and corresponding one of said brackets so as to be collapsable; an operating knob arranged outside one of said first and second side frames and supported to the one of said first and second side frames; power transmission means coupling said operating knob and said linkage base frame for transmitting to said linkage base frame power generated according to operation of said operating knob and causing said linkage base frame to be vertically swung, to thereby cause said seat to be vertically moved; and stopper means provided at said linkage base frame for abutting against said installation-surfaces and limiting downward movement of said seat and keeping said seat in a lowermost position at which said first and second side frame frames of said seat are spaced apart from said installation surfaces.