Patent ID: 7455362

Claim:
An adjustable motion wheel chair comprising: a chair assembly having a back frame pivotally attached to a seat frame via spaced apart back linkage members, each back linkage member forming a part of a lower end portion of the back frame, the seat frame having a pair of seat frame linkage members each forming a part of a rear portion of the seat frame, each seat frame linkage member being hingedly attached at a first pivot point on the seat frame linkage member to a corresponding one of the back frame linkage members; and a mobility base for supporting the chair assembly, the mobility base having a pair of spaced apart vertical control plates receiving the chair assembly positioned therebetween; wherein the chair assembly pivotally attaches to the mobility base via a pair of pivot pins each extending from the lower end portion of the back frame into an adjacent one of the pair of control plates, permitting the back frame and seat frame to rotate in relation to each other via both rotation of the back frame rotating about the pivot pins in the pair of control plates and rotation of the hinged linkage between the seat frame and the back frame; and a pair of second pivot pins each releaseably engagable between one of the back frame linkage members and an adjacent one of the control plates, wherein the second pivot pins engaging the control plates are each spaced from the first pivot points on the seat frame linkage members.