Seat structure and device for determining load on seat
First Claim
1. A seat structure comprising a cushioning member strained over a seat cushion via an elastic supporting-mechanism, wherein said elastic supporting-mechanism is structured including a torsion bar disposed in the rear of a seat cushion and a supporting frame connected to the torsion bar and biased to tilt backwards in a normal state;
- said cushioning member is supported by said supporting frame, and strained by the elastic force of said torsion bar; and
a displacement detecting mechanism is provided for detecting displacement of said elastic supporting-mechanism when a load is applied to said cushioning member, so that the load applied to the cushioning member is detectable from a displacement signal detected by the displacement detecting mechanism.
1 Assignment
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Accused Products
Abstract
The seat structure includes a torsion bar as an elastic supporting-mechanism for elastically supporting a cushioning member, and is provided with arms and a supporting frame pivoted by the torsion bar. Accordingly, a device for determining a load on the seat can be structured with an extremely simple structure by providing a displacement detecting mechanism to detect the amount of twist or the twist angle of the torsion bar, or a pivot angle of the arm, displaced by being seated.
8 Citations
10 Claims
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1. A seat structure comprising a cushioning member strained over a seat cushion via an elastic supporting-mechanism, wherein
said elastic supporting-mechanism is structured including a torsion bar disposed in the rear of a seat cushion and a supporting frame connected to the torsion bar and biased to tilt backwards in a normal state; -
said cushioning member is supported by said supporting frame, and strained by the elastic force of said torsion bar; and
a displacement detecting mechanism is provided for detecting displacement of said elastic supporting-mechanism when a load is applied to said cushioning member, so that the load applied to the cushioning member is detectable from a displacement signal detected by the displacement detecting mechanism. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for determining a load on the seat provided on a seat structure comprising:
- a torsion bar disposed in the rear of a seat cushion; and
a supporting frame connected to the torsion bar and biased to tilt backwards in a normal state, and structured that a cushioning member is supported by said supporting frame and strained by the elastic force of said torsion bar, comprising;
a displacement detecting mechanism to detect displacement of said elastic supporting-mechanism when a load is applied to said cushioning member, so that the load applied to the cushioning member is determined from a displacement signal detected by the displacement detecting mechanism. - View Dependent Claims (8, 9, 10)
- a torsion bar disposed in the rear of a seat cushion; and
Specification