An adjustable motor vehicle seat includes a main part, an attachment which is movable relative to the main part, and at least two guide elements. Each guide element has a surface which is spherical in at least one portion, and a receiving portion configured for receiving the main part or the attachment at least in part. The guide elements are mounted in a bearing point of at least one of the main part and the attachment and arranged one behind the other with respect to a direction of translation of the attachment relative to the main part.

Adjustable headrest including a guide configured to be coupled to a seat; a head support coupled to the guide and configured to be movable along an adjustment path relative to the seat; and a slider having a surface defining a recess receiving the guide. A retainer is positioned to urge a surface of the slider against a surface of the guide, thereby maintaining friction between the surface of the slider and the surface of the guide. Additionally, the adjustable headrest includes a bracket that is fixable relative to the head support or fixed relative to the seat. The bracket has a mounting section positioned for fixation relative to the head support or for fixation to the seat and a guide receiving portion receiving the guide. The slider and the bracket are separate components and are formed from the same material or different materials.

Adjustable headrest including a guide configured to be coupled to a seat; a head support coupled to the guide and configured to be movable along an adjustment path relative to the seat; and a slider having a surface defining a recess receiving the guide. A retainer is positioned to urge a surface of the slider against a surface of the guide, thereby maintaining friction between the surface of the slider and the surface of the guide. Additionally, the adjustable headrest includes a bracket that is fixable relative to the head support or fixed relative to the seat. The bracket has a mounting section positioned for fixation relative to the head support or for fixation to the seat and a guide receiving portion receiving the guide. The slider and the bracket are separate components and are formed from the same material or different materials.

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.

A headrest has a pad that is formed integrally with an outer cover by foam molding, and is also provided with: a low-resilience layer that is set in a front part of the pad and has lower resilience than the pad; a support member that is harder than the pad and supports the low-resilience layer from a backside of the low-resilience layer; and a blocking member that is located at a position to cover a contact area of the low-resilience layer and the support member from an outer circumference side while being in contact with at least one of the low-resilience layer and the support member and blocks infiltration of a foamed resin material of the pad into the contact area.

A headrest is mounted to a seat back by inserting a support into a support hole of a holder and inserting a stay of the headrest into to stay hole of the support inserted into the support hole of the holder. A gap occupying part provided in the support moves between an advanced position at which the gap occupying part protrudes from an outer wall of the support and is capable of touching an inner surface of the support hole, and a retracted position at which the gap occupying part is retracted to an inner side of the stay hole from the advanced position. The gap occupying part moves toward the retracted position from the advanced position when the support is inserted into the support hole, and moves toward the advanced position when the stay is inserted into the stay hole.

A vehicle seat has a seat bottom, a backrest which is attached to the seat bottom and has a backrest structure, and a headrest attached to the backrest. The headrest has a headrest structure provided with an upholstery cover and inserted by way of at least one support rod in an associated support rod holder of the backrest structure and being locked or lockable there. At least one damping element is provided between the backrest structure and the headrest structure.

A vehicle seat has a seat bottom, a backrest which is attached to the seat bottom and has a backrest structure, and a headrest attached to the backrest. The headrest has a headrest structure provided with an upholstery cover and inserted by way of at least one support rod in an associated support rod holder of the backrest structure and being locked or lockable there. At least one damping element is provided between the backrest structure and the headrest structure.