Vehicle seat assembly

Claim 2

A seat assembly including a seat cushion and a seat support frame, said seat support frame comprising a pair of laterally spaced and substantially parallel side members each of which has a front end and a rear end, a front rail member connecting the front ends of said side members, a rear rail member connecting the rear ends of said side members so as to form a generally rectangular structure with said front rail member, a spring support assembly for said seat cushion, said spring support assembly comprising a generally U-shaped border wire having a front section located above said front rail member and a pair of integral side sections, a slab of high density plastic foam material serving as a base for said seat cushion, a plurality of sinuous spring members connected at one end to said front section and encapsulated together with the border wire in said slab of high density plastic foam material, a diaphragm of elastomeric material connecting the side sections of said border wire and the other ends of said sinuous spring members to the rear rail member, and a block of high density plastic foam material integrally formed with said slab adjacent said front section of the border wire and serving as a support for maintaining the front portion of the spring support assembly above said front rail member at a predetermined distance.

Claim 3

The seat assembly of claim 1 wherein said diaphragm is formed with a pair of parallel rods one of which is secured to said other ends of the sinuous spring members and the other of which is fixed to the rear rail member.

Claim 4

The seat assembly of claim 2 wherein a plurality of support clips are fastened to the rear rail member and serve to cOnnect the other of said rods to the rear rail member.

Claim 5

The seat assembly of claim 3 wherein each of said support clips comprises a base section formed with a pair of laterally spaced and parallel legs, each of said legs having a hook portion and an abutment surface, said rear rail member having vertically orientated slots formed therein for accommodating the hook portions of said support clips whereby each hook portion engages an inner surface of the rear rail member while said abutment surface engages an outer surface of said rear rail member for connecting the support clip to the rear rail member.

Claim 6

A seat assembly including a seat cushion and a seat support frame, said support frame comprising a pair of laterally spaced and substantially parallel side members each of which has a front end and a rear end, a front rail member connecting the front ends of said side members, a rear rail member connecting the rear ends of said side members so as to form a generally rectangular structure with said rear rail member located at an elevation higher than the front rail member, a spring support assembly for said seat cushion, said spring support assembly comprising a generally U-shaped border wire having a front section located above said front rail member and a pair of rearward extending side sections located adjacent to and above said side members, a slab of high density plastic foam material serving as a base for said seat cushion, a plurality of sinuous spring members located in a substantially horizontal plane and connected at one end to said front section and encapsulated together with the border wire in said slab of plastic foam material, an elongated diaphragm of elastomeric material located in a substantially vertical plane for connecting the side sections of said border wire and the other ends of said sinuous spring members to the rear rail member, and a block of plastic foam material integrally formed with said slab adjacent said front section of the border wire and serving as a support for maintaining the front portion of the spring support assembly above said front rail member at a predetermined distance.

Claim 7

A seat assembly including a seat cushion and a seat support frame, said support frame comprising a pair of laterally spaced and substantially parallel side members each of which has a front end and a rear end, a front rail member connecting the front ends of said side members, a rear rail member connecting the rear ends of said side members so as to form a generally rectangular structure with said rear rail member located at an elevation higher than the front rail member, a spring support assembly for said seat cushion, said spring support assembly comprising a generally U-shaped border wire having a front section located above said front rail member and a pair of rearward extending side sections located adjacent to and above said side members, a slab of high density plastic foam material serving as a base for said seat cushion, a plurality of sinuous spring members located in a substantially horizontal plane and connected at one end to said front section and encapsulated together with the border wire in said slab of plastic foam material, an elongated diaphragm of elastomeric material located in a substantially vertical plane for connecting the side sections of said border wire and the other ends of said sinuous spring members to the rear rail member, and a block of plastic foam material integrally formed with said slab adjacent said front section of the border wire and serving as a support for maintaining the front portion of the spring support assembly above said front rail member at a predetermined distance.