Adjustable lumbar assembly for vehicle seats
AssigneeLear Corporation
InventorsGiuseppe Ghisoni, Roberto D'Agostini, Luca Tomasi
Life of this patent
Estimating the term…
Abstract
A lumbar assembly has a wireframe for attachment to a frame of a vehicle seat. The wire frame has first and second spaced apart side members. First and second flexible lumbar support bands are each mounted to a wire frame side member, and each have a lateral portion extending inboard with a guide member. The guide members of the first and second lumbar support bands cooperate so that the lumbar support bands are adjusted in a fore and aft direction by translating the lateral portions relative to each other along the guide members.
Claims20
A lumbar assembly comprising:
- a wireframe for attachment to a frame of a vehicle seat, the wireframe having first and second spaced apart side members;
- a first flexible lumbar support band mounted to the first wireframe side member, the first lumbar support band having a first lateral portion extending inboard from the first wireframe side member, the first lateral portion having a first guide member;
- and
- a second flexible lumbar support band mounted to the second wireframe side member, the second lumbar support band having a second lateral portion extending inboard from the second wireframe side member, the second lateral portion having a second guide member cooperating with the first guide member such that the first and second lumbar support bands are adjusted in a fore and aft direction by translating the first and second lateral portions relative to each other along the first and second guide members.
A lumbar assembly comprising:
- a wireframe for attachment to a frame of a vehicle seat, the wireframe having first and second spaced apart side members;
- a first flexible lumbar support band mounted to the first wireframe side member, the first lumbar support band having a first lateral portion extending inboard from the first wireframe side member and a first intermediate portion extending at least partially in an aft direction and oriented between the first wireframe side member and the first lateral portion, the first lateral portion having a slot formed therethrough;
- a second flexible lumbar support band mounted to the second wireframe side member, the second lumbar support band having a second lateral portion extending inboard from the second wireframe side member and a second intermediate portion extending at least partially in an aft direction and oriented between the second wireframe side member and the second lateral portion, the second lateral portion having a projection extending through the slot in the first guide member such that the first and second lumbar support bands are adjusted in a fore and aft direction by translating the first and second lateral portions relative to each other along the first and second guide members;
- and
- a cable assembly mounted to each of the first and second lumbar support bands for translating the first and second lateral portions along the first and second guide members for extension and retraction of the first and second lateral portions relative to the wireframe for providing adjustment of the lumbar assembly.
A method for assembling an adjustable lumbar assembly comprising:
- providing a wireframe with a pair of side members;
- pivotally mounting a first flexible lumbar support member to one of the side members;
- pivotally mounting a second flexible lumbar support member to the other of the side members;
- slidably connecting the first lumbar support member to the second support member;
- and
- connecting a cable assembly to the first and second lumbar support members to slide the first and second lumbar support members relative to each other for adjusting the lumbar assembly.
Dependencies are inferred from the claim text.