Patent ID: 8864236
Filing Date: 2014-10-21
Classification: B60N

Abstract:
1. A headrest assembly capable of being made in a head support state in which a headrest is raised with respect to a seat back, and in a storage state in which the headrest is tilted from the head support state, comprising: a pillar having a transverse shaft part; a headrest frame rotatable relative to an upper portion of the seat back; a headrest urging element or elements that urge the headrest frame in a tilt direction; a locking element or elements that hinder rotating of the headrest frame relative to the pillar; a ratchet lever that comprises a concave part and that operates the locking element or elements and slides in a transverse direction; and a ratchet lever urging element or elements that urge the ratchet lever, wherein: the locking element or elements comprises: one end in a longitudinal direction of the engagement groove of the latch plate is open ended; a movement of the ratchet lever allows the ratchet to rotate to engage with and to disengage from the engagement groove from a side of the open end; the ratchet lever urging element or elements is attached to the ratchet lever that is slidable in the transverse direction and urges the ratchet lever in a direction at a substantially non-zero predetermined angle to the ratchet lever; the headrest frame comprises a looseness preventing piece that contacts the pillar; the ratchet lever comprises a pair of jutting-out parts projecting to the pillar; and each of the pair of jutting-out parts is disposed each side of the looseness preventing piece in a lateral direction.