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US 2002/0171278 A1Published application
Reclining chair
OwnerEdward L. Stulik, Bruce Burnessinventors
Life of this patent
Estimating the term…
Abstract
A reclining chair including a support base, a chair seat rotatably coupled at its forward portion to the support base, a substantially vertically disposed coil spring provided adjacent the forward portion of the seat and between the seat and the support base such that the coil spring is pivotally coupled to the seat portion and the support base at its ends, an apparatus for pivoting one end of the coil spring about another end of the coil spring and an offset crank for driving said apparatus.
Claims4
A reclining chair comprising:
- a support base;
- a chair comprising at least a seat portion;
- a means for coupling a forward portion of said seat portion to said support base such that said seat portion moves substantially about a pivoting axis located adjacent said forward portion;
- at least one coil spring provided adjacent said forward portion of said seat portion and between said seat portion and said support base;
- a means for coupling ends of said coil spring pivotally to said seat portion and said support base;
- a means for pivoting one end of said coil spring about another end of said coil spring;
- and
- an offset crank means for driving said means for pivoting one end of said coil spring about another end thereof;
- whereby by pivoting said one end of said coil spring about another end of said coil spring an effective force per unit distance of said coil spring is varied and reclining chair is made equally comfortable to sit and recline in throughout the entire range of heavy to lightweight persons.
6 more elements
A reclining chair comprising:
- a support base;
- a chair comprising at least a seat portion and a back portion;
- a means for coupling a forward portion of said seat portion to said support base such that said seat portion moves essentially about a pivoting axis located adjacent said forward portion;
- a coil spring means provided adjacent said forward portion of said seat portion and between said seat portion and said support base;
- a means for coupling ends of said coil spring means pivotally to said seat portion and said support base;
- a means for pivoting one end of said coil spring means about another end of said coil spring means;
- a means for coupling said seat and back portions together such that when said seat portion is pivoted about said pivoting axis, said back portion simultaneously pivotally moves about a pivoting axis located above said seat portion and adjacent said back portion, said means comprising a roller coupled to said support base and a curved cam coupled to said back portion riding on said roller;
- whereby relative motion between the seat portion and the back portion infinitely variable and said reclining chair is comfortable to sit in by both heavy and lightweight persons.
5 more elements
Dependencies are inferred from the claim text.