An actuating pillow includes a pillow body and a plurality of artificial muscles arranged within the pillow body. Each of the artificial muscles includes a housing having an electrode region and an adjacent expandable fluid region, an electrode pair positioned in the electrode region of the housing, and a dielectric fluid housed within the housing. The plurality of artificial muscles are configured to actuate from a non-actuated state to an actuated state, actuation from the non-actuated state to the actuated state directs the dielectric fluid into the expandable fluid region and increases a height of the pillow body.

A vehicle seat includes a seat cushion, a seatback, a headrest, and a head support section. The seat cushion is configured so as to support the buttocks of a seated occupant from a seat lower side. The seatback is configured so as to support the back of the seated occupant from a seat rear side. The headrest is configured so as to support the head of the seated occupant from the seat rear side. The head support section is provided to the headrest and is configured so as to support a location corresponding the occipital bone of the head of the seated occupant from a seat left-right direction, and is also configured so as to support the location in a forward direction and in a seat obliquely upward direction from the seat rear side.

A headrest module for a motor vehicle seat includes a base component and a headrest mounted in the base component. The headrest is configured to be guided in a vehicle longitudinal direction so as to be extendable and retractable relative to the base component. The headrest further includes a fixing mechanism having a first fixing element with teeth and a second fixing element configured to be moved towards the first fixing element for engagement between adjacent teeth. Contact faces of the two fixing elements are configured such that an extension of the headrest is possible under the action of a force on the headrest in an extension direction. A movement of the headrest in a retraction direction is possible under action of a release mechanism of the headrest module configured to move the second fixing element out of the region between the teeth of the first fixing element.

A vehicle headrest includes an electro-acoustic transducer and an acoustic enclosure that supports the electro-acoustic transducer. A unitary foam member is coupled to the acoustic enclosure. The foam member has regions of contrasting firmness including a first region having a first firmness and a second region having a second firmness that is greater than the first firmness. The second region defines a speaker grille that is configured to overlie the electro-acoustic transducer.

A vehicle seat including a seatback, and headrest including a shell member. A release mechanism is mounted to the shell member. The release mechanism selectively locks the headrest relative to the seatback. An actuator system extends between the seatback and the headrest. The actuator system includes a sleeve having a first end fixedly connected relative to the seatback, a second end fixedly connected relative to the headrest shell, and an intermediate portion defining a longitudinal length of the sleeve, and a cable extending through the sleeve. The cable has a first end section arranged in the seatback and a second end section coupled to the release mechanism. The longitudinal length of the sleeve includes a first dimension when the seatback is in an upright position and the longitudinal length has a second, longer dimension, when the seatback is in a folded configuration.

A headrest includes a first configuration section comprising a hard urethane and formed with an indentation in a front face, the indentation enabling entry of a supported portion, and the supported portion being a location corresponding to an occipital bone of the head of the seated occupant; and a second configuration section comprising a soft urethane having a lower rigidity than the hard urethane, the second configuration section being provided at the indentation so as to be deformed by the supported portion. Part of the first configuration section, which is a bottom face of the indentation, is configured by a left-right pair of head support faces that support the supported portion and that are connected together at a connection location having a straight line shape. An angle formed between cross-sections of the left and right head support faces when sectioned along a plane perpendicular to the connection location is a first angle that is from 37.2° to 143°. An angle formed between a direction perpendicular to the connection location and a seat front-rear direction when viewed along a seat left-right direction is a second angle that is from 12.8° to 68.7°.

A height adjustment mechanism for a headrest includes: a locking member configured to be locked with a height adjustment gear, the locking member having a first locking position and a first unlocking position, and the locking member being capable of switching between the first locking position and the first unlocking position; an operating member having an initial position, a first operating position and a second operating position; a safety lock structure configured to lock the locking member in the first locking position, the safety lock structure being movably connected on the operating member; and a driving member, one side of the driving member being slidably connected to the operating member, the other side of the driving member abutting against the locking member.

An actuating pillow includes a pillow body and a plurality of artificial muscles arranged within the pillow body. Each of the artificial muscles includes a housing having an electrode region and an adjacent expandable fluid region, an electrode pair positioned in the electrode region of the housing, and a dielectric fluid housed within the housing. The plurality of artificial muscles are configured to actuate from a non-actuated state to an actuated state, actuation from the non-actuated state to the actuated state directs the dielectric fluid into the expandable fluid region and increases a height of the pillow body.

A slim headrest device may include a fixed guide bracket provided upside a seatback; a moving plate, a first end portion of which is moved forward and rearward by being guided by the fixed guide bracket and a second end portion of which is in a shape bent upward; and a moving guide bracket to which a headrest is mounted, the moving guide bracket being moved upwardly and downwardly by being guided by the second end portion of the moving plate.

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.