Patent ID: 7712835
Filing Date: 2010-05-11
Classification: B60N

Abstract:
1. In combination with a seat cushion of vehicle seat including a seat cushion frame having a lateral frame member facing a lateral side of the seat cushion, a structure of an operation portion of a height adjuster for adjustment in height of said vehicle seat, wherein said operation portion is defined at a lateral side of the seat cushion corresponding to said lateral frame member, wherein said operation portion is provided with a brake unit associated with said height adjuster, said brake unit having a connecting shaft projecting outwardly from said lateral frame member, wherein, further, said operation portion is provided with a support element having a rotatable connection portion projecting outwardly from said lateral frame member, wherein a transmission mechanism of a parallel linkage structure with four articulation points is operatively connected between said connecting shaft of said brake unit and said rotatable connection portion of said support element, said transmission mechanism comprising: wherein said another pivotal connection point of said first link member is pivotally connected with said rotatable connection portion of said support element, while said another pivotal connection point of said second link member is pivotally connected with said connecting shaft of said brake unit, thus defining another pair of articulation points in said transmission mechanism, whereupon said first and second link members are maintained in a parallel relation with each other, while said connecting link member is maintained in a parallel relation with a rectilinear line extending between said another pivotal connection point of said first link member and said another pivotal connection point of said second link member, wherein said first link member, said second link member and said connecting link member are arranged in a coplanar relation with one another and disposed vertically alongside of said lateral frame member of said seat cushion frame, wherein a control lever is fixedly connected with said rotatable connection portion of said support element, said control lever being disposed outwardly of said transmission mechanism as well as outwardly of said lateral side of said seat cushion.