Three point seat adjuster

Claim 1

A seat adjuster providing three point support of a seat to the floor of a vehicle or the like, comprising, a pair of generally parallel, rearwardly disposed guide tracks mounted to the vehicle floor, a forwardly disposed guide member including a guide bracket pivotally joined to a floor mounted bracket, the guide bracket including a pair of journals and a roller between the journals, a generally Y shaped seat frame support attached to the seat and including a pair of tubular stem members, each slidably extending through a respective guide bracket journal and engaging the roller to provide a first point of support, the seat frame support further including a pair of leg members, each extending angularly from a stem member and respective to a guide track, roller means slidably supporting each leg member on a respective guide track, the roller means sliding up and down the guide tracks as the seat frame support is moved forward and backward, the guide bracket pivoting relative to the floor as the seat frame support moves relative to the journals and roller, and releasable locking means selectively engageable between one of the stem members and the guide bracket to releasably lock the stem members within the guide bracket in a plurality of positions.