Base net supporting mechanism for seat and seat structure...

Details Base net supporting mechanism for seat and seat structure... Base net supporting mechanism for seat and seat structure...

2006-05-10

2008-08-26

McPartlin, Sarah B (Department: 3636)

Chairs and seats

Bottom or back

Cushioned

C297S284200, C297S284110, C297S216100

Reexamination Certificate

active

07416256

ABSTRACT:
In order to improve seating comfort and vibration absorbency, a structure including a first torsion bar unit70disposed in the rear of a seat cushion, and a second torsion bar unit80disposed in the front of the seat cushion, and a base net60stretched between a rear supporting frame74of the first torsion bar unit70and a front supporting frame84of the second torsion bar unit80, is provided. Owing to the elastic force of a front torsion bar81of the second torsion bar unit80positioned in the front of the seat, a sense of stroke at the time of seating is enhanced. Owing to the elastic force of a rear torsion bar71of the first torsion bar unit70positioned in the rear of the seat, similarly to the conventional structure, a load of a seated person can be sufficiently received and a stable seating comfort can be obtained. Since both the first torsion bar unit70and the second torsion bar unit80work together to dampen vibration inputted during driving, vibration absorbency is more enhanced than ever.

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