초록 ▼

A seat support includes first and second link members coupling a seat supporting member to a base. The second link member has a first end portion pivoted to the base at a first pivot axis and a second end portion pivoted to the seat supporting member at a second pivot axis. The first link member has

A seat support includes first and second link members coupling a seat supporting member to a base. The second link member has a first end portion pivoted to the base at a first pivot axis and a second end portion pivoted to the seat supporting member at a second pivot axis. The first link member has a first end portion pivoted to the base at a third pivot axis and a second end portion pivoted to the seat supporting member at a fourth pivot axis. The distance between the third and fourth pivot axes is greater than the distance between the first and second pivot axes and may be from about twelve percent to about twenty percent greater. The location of the pivot axes may be expressed by the formula L<(S+R-B). In this formula, L is the distance between the first and second pivot axes; S is the distance between the second and fourth pivot axes; R is the distance between the third and fourth pivot axes; and B is the distance between the first and third pivot axes. In addition, the location of first, second, third and fourth pivot axes may be selected to confine the movement of a selected portion of the seat occupant's body, such as the shoulders, to movement in a substantially vertical direction.

대표청구항 ▼

[ What is claimed is:] [1.]1. A seat support for supporting a seat above the floor of a vehicle, the vehicle having a front end and a rear end, the seat support comprising:a base for mounting to the vehicle;a seat supporting member adapted to carry the seat;first and second link members coupling the

[ What is claimed is:] [1.]1. A seat support for supporting a seat above the floor of a vehicle, the vehicle having a front end and a rear end, the seat support comprising:a base for mounting to the vehicle;a seat supporting member adapted to carry the seat;first and second link members coupling the seat supporting member to the base, the second link member having a first end portion pivoted to the base for pivoting about a first pivot axis and a second end portion pivoted to the seat supporting member for pivoting about a second pivot axis, the first link member having a first end portion pivoted to the base for pivoting about a third pivot axis and a second end portion pivoted to the seat supporting member for pivoting about a fourth pivot axis;wherein the third pivot axis is located rearwardly of the first pivot axis and the fourth pivot axis is located rearwardly of the second pivot axis, and wherein the distance between the third and fourth pivot axes is greater than the distance between the first and second pivot axes;a seat height adjuster coupled to the seat support and adapted to pivot the first and second link members in a first direction to raise the seat supporting member and being adapted to pivot the first and second link members in a second direction opposite to said first direction to thereby lower the elevation of the seat, the seat height adjuster permitting movement of the seat in response to vibrations; anda vibration damper coupled to the seat and adapted to dampen movement of the seat in response to vibrations permitted by the air spring.