Patent ID: 8550554
Filing Date: 2013-10-08
Classification: B60N

Abstract:
1. A vehicle seat for use in a vehicle having a floor therein, comprising: a seat cushion frame including a first lateral frame member and a second lateral frame member, wherein said first lateral frame member has a forward portion adapted for facing forwardly of said vehicle and a backward portion adapted for facing backwardly of said vehicle, and said second lateral frame member has a backward portion adapted for facing backwardly of said vehicle and a forward portion adapted for facing forwardly of said vehicle, a drive pinion rotatably provided to said first lateral frame member, said drive pinion being operatively connected with a drive source; a first front link element of sector shape having: a lower end portion adapted for being pivotally secured on said floor of said vehicle; and an upper widened end portion so formed to diverge from said lower end portion, said upper widened end portion being pivotally connected with said forward portion of said first lateral frame member; said first front link element having an arcuate gear region defined in said upper widened end portion thereof, said arcuate gear region being in meshed engagement with said drive pinion and so arranged as to face backwardly of the seat; said drive pinion being disposed backward of said arcuate gear region; a second front link element having an upper end portion pivotally connected with said forward portion of said second lateral frame member, and a lower end portion adapted for being pivotally fixed on said floor of said vehicle; a connecting element interlocking said first and second front link elements such that said first and second front link elements are movable vertically in a synchronized way; a first rear link element having an upper end portion pivotally connected with said backward portion of said first lateral frame member, and a lower end portion adapted for being pivotally fixed on said floor of said vehicle; and a second rear link element having an upper end portion pivotally connected with said backward portion of said second lateral frame member, and a lower end portion adapted for being pivotally fixed on said floor of said vehicle; wherein said first and second rear link elements are prone to deformation by an excessive great load applied backwardly and downwardly to the seat in case of rear-end collision, thereby absorbing a corresponding excessive great impact.