Rotating device of automotive seat

Details Rotating device of automotive seat Rotating device of automotive seat

1997-06-13

1998-09-22

Nelson, Jr., Milton

Chairs and seats

Movable bottom

Bottom and back movable as a unit

29734422, A47C 102

Patent

active

058104410

ABSTRACT:
A rotating device of a seat has a lower base member secured to a vehicle floor. The lower base member includes a radially inside annular raised part and a radially outside depressed annular part. An annular holder member includes a radially inner part and a radially outer part. The radially inside part is concentrically put on and secured to the radially inside annular raised part in a manner to define therebetween an annular space. An upper base member mounts thereon the seat. The upper base member includes a radially inner annular depressed part and a radially outer annular raised part. The raidally inner annular depressed part is spacedly inserted into the annular space. A first group of rolling balls are operatively arranged between the radially outer depressed annular part and the radially inner annular depressed part. A second group of rolling balls are operatively arranged between the radially inner annular depressed part and the radially outer part.

REFERENCES:
patent: 2648579 (1953-08-01), Slyter et al.
patent: 2738245 (1956-03-01), Campbell
patent: 3659895 (1972-05-01), Dresden
patent: 4544202 (1985-10-01), Keaton
patent: 4557520 (1985-12-01), Simjian
patent: 4844543 (1989-07-01), Ochiai
patent: 4971392 (1990-11-01), Young
patent: 5110181 (1992-05-01), Simjian

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