US 12,448,127 B2
Vehicle seat having a backrest equipped with shock absorbing means
Benjamin Saada, Paris (FR); and Thomas Chevrier, Paris (FR)
Assigned to EXPLISEAT, Paris (FR)
Appl. No. 18/558,583
Filed by EXPLISEAT, Paris (FR)
PCT Filed Apr. 26, 2022, PCT No. PCT/FR2022/050788
§ 371(c)(1), (2) Date Nov. 2, 2023,
PCT Pub. No. WO2022/234213, PCT Pub. Date Nov. 10, 2022.
Claims priority of application No. 2104618 (FR), filed on May 3, 2021.
Prior Publication US 2024/0228043 A1, Jul. 11, 2024
Int. Cl. B64D 11/06 (2006.01)
CPC B64D 11/0619 (2014.12) 10 Claims
OG exemplary drawing
 
1. Seat intended to be fixed to the floor of a vehicle, having a seat part incorporating a lower frame, and a backrest incorporating an upper frame secured to the lower frame by at least one fastener that enables the backrest to tilt about a transverse axis of the seat, this fastener comprising:
a link rod having a first end connected to the lower frame by a first pivot link of axis parallel to the transverse axis, and having a second end connected to the upper frame by way of a second pivot link of axis parallel to the transverse axis;
each pivot link having a rotation brake and/or a system of stops limiting its rotation amplitude;
a pivot link including a brake having a screw passing through one end of the link rod while being screwed into a boss, in order to hold tight the link rod end to generate a friction torque during reaction to a rotation of the end of the link rod in relation to the boss to brake this rotation;
a sacrificial mechanical link that connects the lower frame to the upper frame while being located opposite the link rod.