Sprung vehicle seat
First Claim
1. In a sprung vehicle seat comprisinga base member, a top member, a scissor support assembly operatively disposed between the base member and the top member and comprising first and second lateral scissor levers each having a first fixed end and a second movable end remote from the first end, a scissor support assembly pivot means pivotably movably connecting the scissor levers together, a sliding guide mounted to the first scissor levers and oriented in the longitudinal direction of the seat, and a spring means having first and second ends and co-operable at the first end with the sliding guide displaceably in the longitudinal direction of the seat on the sliding guide for weight adjustment of the vehicle seat, the improvement that the sliding guide is in the form of a plate member which in the non-loaded condition of the vehicle seat is oriented at least approximately parallel to the top member, a first slide member carried on the plate member slidably in the longitudinal direction of the seat for fixing the first end portion of the spring means, and a second slide member at the underside of the top member slidably in the longitudinal direction of the seat for fixing the second end portion of the spring means, wherein the first and second slide members are connected together by the spring means and are thus displaceable simultaneously in the longitudinal direction of the seat for weight adjustment of the vehicle seat.
1 Assignment
0 Petitions
Accused Products
Abstract
A sprung vehicle seat has a base member and a top member, and a scissor support assembly operatively disposed therebetween. The scissor support assembly comprises first and second pivotably interconnected scissor levers. Secured to the first scissor levers is a sliding guide in the form of a plate member which is oriented in the longitudinal direction of the seat. A spring member bears against the sliding guide and the top member and is displaceable in the longitudinal direction of the seat for the purposes of weight adjustment of the seat.
34 Citations
7 Claims
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1. In a sprung vehicle seat comprising
a base member, a top member, a scissor support assembly operatively disposed between the base member and the top member and comprising first and second lateral scissor levers each having a first fixed end and a second movable end remote from the first end, a scissor support assembly pivot means pivotably movably connecting the scissor levers together, a sliding guide mounted to the first scissor levers and oriented in the longitudinal direction of the seat, and a spring means having first and second ends and co-operable at the first end with the sliding guide displaceably in the longitudinal direction of the seat on the sliding guide for weight adjustment of the vehicle seat, the improvement that the sliding guide is in the form of a plate member which in the non-loaded condition of the vehicle seat is oriented at least approximately parallel to the top member, a first slide member carried on the plate member slidably in the longitudinal direction of the seat for fixing the first end portion of the spring means, and a second slide member at the underside of the top member slidably in the longitudinal direction of the seat for fixing the second end portion of the spring means, wherein the first and second slide members are connected together by the spring means and are thus displaceable simultaneously in the longitudinal direction of the seat for weight adjustment of the vehicle seat.
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7. A sprung vehicle seat comprising
a base member, a top member, a scissor support assembly operatively disposed between the base member and the top member and comprising first and second lateral scissor levers each having a first fixed end and a second movable end remote from the first end, a scissor support assembly pivot means pivotably movably connecting the scissor levers together, a sliding guide in the form of a plate member mounted to the first scissor levers and oriented in the longitudinal direction of the seat, the plate member in the non-loaded condition of the vehicle seat being at least approximately parallel to the top member, a first slide member carried slidably on the plate member in the longitudinal direction of the seat, a second slide member at the underside of the top member slidably in the longitudinal direction of the seat, and a spring means having first and second end portions, the first end portion being fixed to the first slide member and the second end portion being fixed to the second slide member, the arrangement being such that the first and second slide members are connected together by the spring means and are thus displaceable simultaneously in the longitudinal direction of the seat for weight adjustment of the vehicle seat.
Specification