A headrest support having a hollow cylindrical shape and into which a headrest stay is inserted, is inserted into a bracket that has a hollow cylindrical shape and is fixed to a seat back frame. A protrusion, a tip end of which is a pivot center of the headrest support, formed such that a protrusion amount thereof increases in response to insertion of the headrest stay, is provided on an outer peripheral surface of this headrest support.

A headrest structure for a passenger seat, a headrest cushion and passenger seat. The headrest structure comprises an adjustable headrest frame for connection to a passenger seat; and a headrest cushion mounted to the adjustable headrest frame such that the headrest cushion is moveable relative to a seat back of the passenger seat by way of the adjustable headrest frame; wherein the headrest cushion comprises a support surface facing away from the headrest frame, the support surface comprising a concave upper part and a convex bottom part relative to the passenger seat.

A bearing including an annular substrate defining a first and a second opposite axial ends; and a plurality of sliding components attached to and extending radially from the annular substrate, each sliding component extending at least partially between the first and second opposite axial ends of the annular substrate. A head restraint assembly including a head restraint having a body and a first and second post extending from the body; a first guide sleeve having a first bearing for receiving the first post; and a second guide sleeve having a second bearing for receiving the second post.

A chair back (2) comprising an upper back rest section (2), and a lower section (30) adapted to support the back rest section (2) relative to a chair seat (14), wherein the lower section (30) comprises a pair of resiliently flexible arcuate bands (4).

A chair back (2) comprising an upper back rest section (2), and a lower section (30) adapted to support the back rest section (2) relative to a chair seat (14), wherein the lower section (30) comprises a pair of resiliently flexible arcuate bands (4).

A headrest element may have a central supporting region and two lateral supporting regions. The lateral supporting regions may be pivotable with respect to the central supporting region about a side pivot axis, which may run at least substantially parallel to a supporting surface of the central supporting region, in such a manner that an angle of the supporting surfaces of the lateral supporting regions can in each case be adjusted variably with respect to the supporting surface of the central supporting region. The central supporting region and the lateral supporting regions may be jointly pivotable about a transverse pivot axis, which runs at least substantially perpendicular to the side pivot axes, in such a manner that an adjustment of the supporting regions in the longitudinal direction of the vehicle is possible. A headrest using the headrest element is also described.

The present invention concerns an inflatable air cushion with at least one pressure indicator, the cushion including an outer side and at least one chamber, the at least one chamber made up of one or more films that are joined, thereby forming one or more airtight chambers, the cushion furthermore including a valve opening for connecting an air supply line, the valve opening being accessible from the surface of the cushion. The invention furthermore relates to a method of inflating such an inflatable cushion with pressure indicator. The new feature of a cushion according to the invention is that the pressure indicator of the cushion includes at least one strap with a first end and a second end, the at least one strap arranged in relation to the surface of the cushion, where the at least one strap is surrounding the cushion entirely or partially, and where the at least one strap is adapted such that the physical appearance of the strap is changed at a given pressure in the cushion, thus constituting a pressure indicator.

A lumbar traction device for treating a lower back of a user includes a shell that is coupled to and extends from a rear edge of a panel. The shell and the panel are configured to position on a seat and in abutment a backrest of a chair, respectively. A coupling means that extends through a front of the shell is coupled to a plate positioned in the shell. The coupling means is configured to couple to a torso of the user to couple the user to the plate. An actuator, which is positioned in the shell and operationally coupled to the plate, is positioned to selectively raise the plate relative to the seat of the chair. The coupling means is configured to transmit an upward force from the actuator to the torso of the user to place a lumbar region of a spine of the user in traction.

A headrest disposed in an upper portion of a seat of a vehicle is configured such that a plurality of through holes are arranged in a vertical direction, the through holes extending through the headrest in a horizontal and front-rear direction.

A seating structure includes a frame, a carrier, and a suspension material. The frame includes first and second side frame members and first and second cross frame members forming a closed loop and defining an opening therebetween. The frame also includes a plurality of first attachment features on an outer perimeter of the frame. The carrier includes first and second side carrier members and first and second cross carrier members that form a closed loop. The carrier also includes a plurality of second attachment features on an inner perimeter of the carrier. The plurality of second attachment features engages the plurality of first attachment features to attach the carrier to the frame. The suspension material is attached to the carrier and extends over the opening in the frame to define a continuous seat and backrest.