A headrest locking device comprising a headrest stay and a locking device which is provided in a headrest body which is supported by the headrest stay, wherein the locking device locks the relative movement of the headrest body in the height direction by engaging a notched groove formed in the headrest stay. The locking device comprising a lock plate which is engaged and disengaged against the notched groove by movement in the headrest width direction and a lock spring which urges the lock plate in the width direction to engage the notched groove. The lock plate and the notched groove have contact surfaces that contact each other in a planar manner at an angle facing forward or rearward oblique to the direction of force of the lock spring.

The invention relates to a headrest for a seat, in particular for a vehicle seat, comprising a head support (11) that can be supported on a vehicle seat by a mounting assembly (13), wherein the mounting assembly (13) comprises a linkage (18) comprising a first holding element (16) on the head support (11), and a second holding element (17) fixed to the seat part, that the first holding element (16) and the second holding element (17) are connected to one another by guides (19a, 19b, 20a, 20b) in such a way that at least one four-pivot linkage (27a, 27b) is formed that can shift the head support (13) relative to the vehicle seat between a front position moved forward toward the head of a seat occupant, and a rear position moved backward.

The invention relates to a headrest for a seat, in particular for a vehicle seat, comprising a head support (11) that can be supported on a vehicle seat by a mounting assembly (13), wherein the mounting assembly (13) comprises a linkage (18) comprising a first holding element (16) on the head support (11), and a second holding element (17) fixed to the seat part, that the first holding element (16) and the second holding element (17) are connected to one another by guides (19a, 19b, 20a, 20b) in such a way that at least one four-pivot linkage (27a, 27b) is formed that can shift the head support (13) relative to the vehicle seat between a front position moved forward toward the head of a seat occupant, and a rear position moved backward.

A retaining device for vehicle headrests, including a guide element inside which a fixing rod for fixing a headrest can be housed, a retaining element movable between a retaining position, in which the retaining element prevents the movement of the fixing rod with respect to the guide element, and a release position, and a push button for moving the retaining element from the retaining position to the release position, and at least one lever linked with the push button transferring the movement of the push button to the retaining element, and an elastic element pushing the lever towards the retaining position of the retaining element, wherein the retaining element and the lever are made in a single piece.

A retaining device for vehicle headrests, including a guide element inside which a fixing rod for fixing a headrest can be housed, a retaining element movable between a retaining position, in which the retaining element prevents the movement of the fixing rod with respect to the guide element, and a release position, and a push button for moving the retaining element from the retaining position to the release position, and at least one lever linked with the push button transferring the movement of the push button to the retaining element, and an elastic element pushing the lever towards the retaining position of the retaining element, wherein the retaining element and the lever are made in a single piece.

A support rod for a vehicle seat head restraint, which is formed as a tube, having at least one structure as part of a locking device and intended for cooperating with a catch of the locking device which is associated with a holding structure. The structure has a base surface which prevents movement of the catch radially to a central axis of the support rod and includes a catch surface that prevents, together with the catch, movement of the support rod in a first direction. At least one catch structure as a detent structure has a cut-out tongue. An inner surface of the tongue radially facing a central axis of the support rod at a free end being spaced apart from the base surface by a height so that the catch is movable at least with a partial region radially under a region of the inner surface of the tongue.

A support rod for a vehicle seat head restraint, which is formed as a tube, having at least one structure as part of a locking device and intended for cooperating with a catch of the locking device which is associated with a holding structure. The structure has a base surface which prevents movement of the catch radially to a central axis of the support rod and includes a catch surface that prevents, together with the catch, movement of the support rod in a first direction. At least one catch structure as a detent structure has a cut-out tongue. An inner surface of the tongue radially facing a central axis of the support rod at a free end being spaced apart from the base surface by a height so that the catch is movable at least with a partial region radially under a region of the inner surface of the tongue.

A headrest arrangement on a motor vehicle the head rest assembly includes a headrest, a back rest, and at least a guide rod. The guide rod connects the back rest with the headrest. The headrest is adjustable between a first locking position and at least a second lock position. The headrest arrangement can occupy an adjustment and a lock mode while in lock mode the head rest in a lock position is locked and the headrest from the first to the at least second locking position is adjustable in the adjustment mode. The backrest includes a locking facility with a lock body to lock the headrest in the lock position.

A headrest arrangement on a motor vehicle the head rest assembly includes a headrest, a back rest, and at least a guide rod. The guide rod connects the back rest with the headrest. The headrest is adjustable between a first locking position and at least a second lock position. The headrest arrangement can occupy an adjustment and a lock mode while in lock mode the head rest in a lock position is locked and the headrest from the first to the at least second locking position is adjustable in the adjustment mode. The backrest includes a locking facility with a lock body to lock the headrest in the lock position.

A forward translating headrest equipped with a ring brake assembly configured to lock a position of a headrest plate relative to a headrest base. A ring brake is disposed between spaced first and second magnets such that first and second reset plates push the ring brake in a direction of one of the first and second magnets to reset the ring brake assembly at both ends of the stroke to the free the shaft.