US 11,772,524 B2
Vehicle seat
Sylvain Roche, Varennes Changy (FR); David Epaud, Lardy (FR); and Farouk Bouzid, Bretigny sur Orge (FR)
Assigned to FAURECIA Sièges d'Automobile, Nanterre (FR)
Filed by FAURECIA Sièges d'Automobile, Nanterre (FR)
Filed on Mar. 25, 2022, as Appl. No. 17/704,199.
Claims priority of application No. 2103237 (FR), filed on Mar. 30, 2021.
Prior Publication US 2022/0314843 A1, Oct. 6, 2022
Int. Cl. B60N 2/12 (2006.01); B60N 2/02 (2006.01); B60N 2/06 (2006.01)
CPC B60N 2/12 (2013.01) [B60N 2/0232 (2013.01); B60N 2/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vehicle seat comprising:
a seat base frame having a front edge and a rear edge interconnected by a first side edge and a second side edge,
anchoring means for anchoring the seat to the floor of a vehicle,
connecting means for connecting the seat base frame to the anchoring means, enabling movement of the seat base frame relative to the anchoring means at least in the longitudinal direction and in the vertical direction of the seat,
a backrest hinged the seat base frame near its rear edge so as to pivot about a first transverse axis of the seat,
a substructure hinged to the anchoring means so as to pivot about a second transverse axis of the seat and hinged to the backrest so as to pivot about a third transverse axis of the seat,
wherein the connecting means comprise:
a front connecting rod having a first longitudinal end and a second longitudinal end, the front connecting rod being hinged to the anchoring means near its first longitudinal end so as to pivot about a fourth transverse axis of the seat and hinged to the seat base frame near its second longitudinal end so as to pivot about a fifth transverse axis of the seat, near its front edge,
a sector gear hinged to the anchoring means so as to pivot about the fourth transverse axis of the seat,
wherein the seat further comprises an irreversible electric motor configured for:
causing rotation of the sector gear relative to the anchoring means about the fourth transverse axis, when activated, and
preventing rotation of the sector gear relative to the anchoring means about the fourth transverse axis, when inactivated,
and wherein the seat further comprises:
a first locking means able to transition:
from a locked state, in which the first locking means prevents rotation of the substructure relative to the anchoring means of the seat about the second transverse axis, to
an unlocked state, in which the first locking means allows rotation of the substructure relative to the anchoring means of the seat about the second transverse axis, and vice versa,
a second locking means able to transition:
from a locked state, in which the second locking means prevents rotation of the backrest relative to the substructure about the third transverse axis, to
an unlocked state, in which the second locking means allows rotation of the backrest relative to the substructure about the third transverse axis, and vice versa,
a third locking means able to transition:
from a locked state, in which the third locking means prevents rotation of the front connecting rod relative to the sector gear about the fourth transverse axis by fixedly connecting the front connecting rod to the sector gear, to
an unlocked state, in which the third locking means allows rotation of the front connecting rod relative to the sector gear about the fourth transverse axis, and vice versa.