Vehicle seat
AssigneeAutoliv Development AB
InventorsYngve Håland, Andres Svantesson
Life of this patent
Estimating the term…
Abstract
A vehicle seat has a back-rest (1) carrying a head-rest (2). A mechanism is provided to move the head-rest (2) forwardly relative to the back-rest (1) in response to a rear impact situation. An element (9) is operatively located between the head-rest (2) and the mechanism (6) which is adapted to yield when exposed to a force in excess of a predetermined force. Thus the force that can be applied by the head-rest (2) to a head (8) of an occupant of the seat, is limited to be a maximum of 200 Newtons, with the preferred value being 100 Newtons.
Claims10
A vehicle seat having a headrest mounted on the backrest of the seat, there being a mechanism adapted to move the headrest forwardly relative to the backrest in response to a rear impact situation, there being means operatively located between the headrest and the mechanism adapted to yield when exposed to a force in excess of a predetermined force to limit the force applied to the headrest by said mechanism and thus to limit the force that can be applied by the headrest to a head to be a maximum of 200 Newtons.
A vehicle seat according to any one of the preceding claims wherein the said means comprise a plastically deformable member.
A vehicle seat according to any one of the preceding claims wherein a blocking element or latch is provided to lock the headrest in a forward position after the forward movement has been effected.
Dependencies are inferred from the claim text.