Vehicle seat and method of production thereof
First Claim
1. A vehicle seat comprising:
- a holder assembly including at least two holder segments and defining a seat surface for an occupant;
an elastic material secured to said holder assembly so as to span at least between said holder segments;
a suspending assembly that suspends at least one of said holder assembly and said elastic material from above and outside said holder assembly relative to said seat surface;
a tensioning assembly that strains said holder assembly with a predetermined tensile force from a central portion of at least one of said holder segments in a direction downwardly and outwardly relative to said seat surface.
1 Assignment
0 Petitions
Accused Products
Abstract
End portions of elastic fibers are fixed to a holder plate as well as a holder cover constituting a seat surface of a vehicle seat, thereby spanning the elastic fibers. A net-shaped seat portion is thus formed of the elastic fibers. The holder plate and the holder cover are suspended on the elastic fibers in the upper-diagonal direction. The elastic fibers thus strained are overlaid with urethane foam, and a cushion member is formed by a urethane pad. Meanwhile, the holder cover is pulled by a spring in the lower-diagonal direction so as to impart an initial tensile force to the elastic fibers, whereby deflections are eliminated. When an occupant'"'"'s weight acts on the vehicle seat with the above construction, the vehicle seat deflects downward, with a predetermined deflection curve being drawn. However, both end portions of the elastic fibers are suspended on the elastic fibers in the upper-diagonal direction. This provides a substantially linear deflection curve, and a feeling of sitting-on-the-bottom is eliminated. The elastic fibers and the urethane pad can be formed integrally by means of a mold, thereby allowing a shorter manufacturing process.
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Citations
16 Claims
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1. A vehicle seat comprising:
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a holder assembly including at least two holder segments and defining a seat surface for an occupant; an elastic material secured to said holder assembly so as to span at least between said holder segments; a suspending assembly that suspends at least one of said holder assembly and said elastic material from above and outside said holder assembly relative to said seat surface; a tensioning assembly that strains said holder assembly with a predetermined tensile force from a central portion of at least one of said holder segments in a direction downwardly and outwardly relative to said seat surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle seat comprising:
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a holding system comprising holding members which form a seat surface for an occupant; an outer frame which is disposed on an outer periphery of said holding system; at least one elastic strap spanned between said holding members; a suspending assembly that elastically suspends said holding members from above and outside said holding system relative to said seat surface; and a spring assembly that strains said holding members with a predetermined tensile force in a direction downwardly and outwardly relative to said seat surface formed by said holding members. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification