A plurality of pressing portions 38 protrude inward in a radial direction from an inner peripheral surface of a tubular main body portion 35 (part of a tube body) and are each fixed at both ends thereof in an up-down direction to the main body portion 35. Since the plurality of pressing portions 38 are aligned in the up-down direction, a stay 22 or 23 can be inhibited from oscillating with a contact portion between one pressing portion 38 and the stay 22 or 23 as a fulcrum. As a result, rattling of the stay 22 or 23 relative to a headrest holder 30 or 31 can be suppressed.

A plurality of pressing portions 38 protrude inward in a radial direction from an inner peripheral surface of a tubular main body portion 35 (part of a tube body) and are each fixed at both ends thereof in an up-down direction to the main body portion 35. Since the plurality of pressing portions 38 are aligned in the up-down direction, a stay 22 or 23 can be inhibited from oscillating with a contact portion between one pressing portion 38 and the stay 22 or 23 as a fulcrum. As a result, rattling of the stay 22 or 23 relative to a headrest holder 30 or 31 can be suppressed.

An adjustable headrest 300 includes a guide 360 configured to be coupled to a seat, a head support 302 coupled to the guide and configured to be movable along an adjustment path relative to the seat, and a slider 370 having a surface defining a recess 373 receiving the guide such that the surface of the slider contacts a surface of the guide. The adjustment headrest further includes a retainer 390 positioned to urge the surface of the slider against the surface of the guide, thereby maintaining friction between the surface of the slider and the surface of the guide and resisting unintended movement of the slider with respect to the guide along the adjustment path. Also, a friction module and a friction hinge are provided, which can be incorporated into an adjustable headrest or other assemblies in which sliding and/or hinged components are desired.

An adjustable headrest 300 includes a guide 360 configured to be coupled to a seat, a head support 302 coupled to the guide and configured to be movable along an adjustment path relative to the seat, and a slider 370 having a surface defining a recess 373 receiving the guide such that the surface of the slider contacts a surface of the guide. The adjustment headrest further includes a retainer 390 positioned to urge the surface of the slider against the surface of the guide, thereby maintaining friction between the surface of the slider and the surface of the guide and resisting unintended movement of the slider with respect to the guide along the adjustment path. Also, a friction module and a friction hinge are provided, which can be incorporated into an adjustable headrest or other assemblies in which sliding and/or hinged components are desired.

The present invention relates to an assembly (21), particularly for a seat frame (7), comprising a structural tube (15) and at least one frame wire (20) mounted on the structural tube (15). The frame wire is mounted on the structural tube (15) by metal forming without the addition of external material. The present invention also relates to a seat frame (7), particularly for a backrest or a seat portion of a vehicle seat, comprising a left side flank (10) and/or a right side flank (11). The seat frame comprises at least one structural tube (15) mounted to the left side flank (10) and/or to the right side flank (11) by metal forming without the addition of external material.

A headrest assembly for a vehicle seat includes two pins each extending along an adjustment direction between a lower end and an upper end, each of the two pins having a mounting portion comprising the lower end and adapted to be fixed to a backrest of a seat, an adjustment portion comprising the upper end, and an intermediate portion between the mounting portion and the adjustment portion. The seat further includes a support structure adapted to support the head of a user, and an interface made of overmolded plastic and interconnecting the intermediate portions of the two pins.

A linear motion assembly including a component having a longitudinal axis and adapted to translate along the longitudinal axis, and a bearing comprising a spiral body including a substrate and a low friction material, wherein the bearing extends around the component and provides a low friction interface for translation of the component, and wherein the bearing is adapted to prevent longitudinal translation of the component in a locked condition and permit longitudinal translation of the component in an unlocked condition. In an embodiment, the bearing is adapted to transition between the locked and unlocked conditions upon circumferential translation of an axial end of the spiral body, longitudinal translation of an axial end of the spiral body, or a combination thereof.

The technology described in this document can be embodied in a method for controlling acoustic output radiating through an adjustable wing of a seat headrest. The method includes receiving, from a sensor disposed in the seat headrest, an input signal indicative of a position of the adjustable wing. The position can be one of multiple positions within an angle range. The method also includes updating, based on the input signal, values for one or more control parameters associated with a transducer that generates the acoustic output radiating through the adjustable wing, and adjusting the transducer in accordance with the position of the adjustable wing using one or more control signals that are generated based on the updated values of the one or more control parameters.

Proposed is a headrest assembly 1 for a motor vehicle. The headrest assembly encompasses a headrest 2, a backrest 3 and at least one guide rod 4, wherein the guide rod 4 joins the backrest 3 with the headrest 2. The headrest 2 can be adjusted between a first locking position and at least one second locking position. The headrest assembly 1 can assume an adjustment mode and locking mode, wherein, in the locking mode, the headrest 2 is locked in a locking position, and in the adjustment mode, the headrest 2 can be adjusted from the first locking position into the at least second locking position. The at least one guide rod 4 encompasses at least two axially spaced apart latching notches, wherein at least one of the latching notches is designed as a catching notch 6, and exhibits a latching surface 10 and a sliding surface 9, wherein the latching surface 10 forms a bearing surface, and the sliding surface 9 is a surface inclined relative to the axial plane of the guide rod 4. The backrest 3 encompasses a locking device 5 with a locking body 8 for locking the headrest 3 in the locking position, wherein the locking body 8 encompasses a locking surface 13 as well as a rounded edge region 12, wherein, in the locking mode, the locking surface 13 of the locking body 8 flatly contacts the latching surface 10, and in the adjustment mode, the rounded edge region 12 linearly contacts the sliding surface 9.

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.