A vehicle occupant protection device includes: an airbag main body that includes a front-rear chamber that is deployed to a seat front side along a side of a head of an occupant by a gas ejected from an inflator operated when a collision of a vehicle is detected or predicted, and a tip end chamber that is deployed inward in a seat width direction from an end portion of the front-rear chamber on the seat front side; and a headrest that includes a main body portion that supports the head of the occupant from a seat rear side, and a side portion that is provided on at least a side of the main body portion, that protrudes to the seat front side until a deployment of the front-rear chamber is completed, and that is interposed between the front-rear chamber and the head of the occupant.

A vehicle occupant protection device includes: an airbag main body that includes a front-rear chamber that is deployed to a seat front side along a side of a head of an occupant by a gas ejected from an inflator operated when a collision of a vehicle is detected or predicted, and a tip end chamber that is deployed inward in a seat width direction from an end portion of the front-rear chamber on the seat front side; and a headrest that includes a main body portion that supports the head of the occupant from a seat rear side, and a side portion that is provided on at least a side of the main body portion, that protrudes to the seat front side until a deployment of the front-rear chamber is completed, and that is interposed between the front-rear chamber and the head of the occupant.

An ergonomic headrest assembly which can be used by a user such as a passenger on an airplane or other vehicle to prevent or restrict side-to-side head movements of the user to enhance comfort of the user may include a lower portion. A headrest portion may be provided on the lower portion. The headrest portion may include a middle headrest section. A pair of side headrest sections may extend from the middle headrest section. The side headrest sections may be adjustable at selected angles with respect to the middle headrest section to support and prevent or restrict side-to-side movement of the head of a user as the middle headrest section of the headrest portion supports the user's head.

An ergonomic headrest assembly which can be used by a user such as a passenger on an airplane or other vehicle to prevent or restrict side-to-side head movements of the user to enhance comfort of the user may include a lower portion. A headrest portion may be provided on the lower portion. The headrest portion may include a middle headrest section. A pair of side headrest sections may extend from the middle headrest section. The side headrest sections may be adjustable at selected angles with respect to the middle headrest section to support and prevent or restrict side-to-side movement of the head of a user as the middle headrest section of the headrest portion supports the user's head.

A side wing adjustment mechanism and an adjustable sitting device, the side wing adjustment mechanism includes: a pin arranged on the headrest; and an inclined grooves arranged on the side wing, a distance between a portion of the inclined grooves and the longitudinal center axis gradually decreases in a direction extending from bottom to top toward the headrest along a longitudinal center axis of the backrest, and the pin is slidable along the inclined grooves. According to the application, the side wing can be folded and opened at will, and the structure of the application is more inclusive. During the opening and folding process, puling of the headrest or pushing of the side wing can be performed more smoothly and labor-savingly, and the phenomenon of deflection and jamming can be avoided, such that the opening and folding process of the side wings is smoother.

A side wing adjustment mechanism and an adjustable sitting device, the side wing adjustment mechanism includes: a pin arranged on the headrest; and an inclined grooves arranged on the side wing, a distance between a portion of the inclined grooves and the longitudinal center axis gradually decreases in a direction extending from bottom to top toward the headrest along a longitudinal center axis of the backrest, and the pin is slidable along the inclined grooves. According to the application, the side wing can be folded and opened at will, and the structure of the application is more inclusive. During the opening and folding process, puling of the headrest or pushing of the side wing can be performed more smoothly and labor-savingly, and the phenomenon of deflection and jamming can be avoided, such that the opening and folding process of the side wings is smoother.

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.

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.

An automobile headrest includes a mounting component, a pillow portion detachably connected with the mounting component, a movable block provided with engaging protrusions arranged vertically, a side of the pillow portion adjacent to the mounting component is provided with a groove, at least part of the movable block is movably arranged in the groove, an end of the movable block disposed with the engaging protrusions is exposed from a groove opening of the groove, the pillow portion is provided with a vertically oriented slideway adjacent to the groove opening, the mounting component is provided with a sliding block matched with the slideway, the sliding block is provided with an engagement portion matched with the engaging protrusions, the sliding block is arranged in the slideway, the engaging protrusions are protruded from the groove opening and partially arranged in the engagement portion, when the pillow portion is connected with the mounting component.

An automobile headrest includes a mounting component, a pillow portion detachably connected with the mounting component, a movable block provided with engaging protrusions arranged vertically, a side of the pillow portion adjacent to the mounting component is provided with a groove, at least part of the movable block is movably arranged in the groove, an end of the movable block disposed with the engaging protrusions is exposed from a groove opening of the groove, the pillow portion is provided with a vertically oriented slideway adjacent to the groove opening, the mounting component is provided with a sliding block matched with the slideway, the sliding block is provided with an engagement portion matched with the engaging protrusions, the sliding block is arranged in the slideway, the engaging protrusions are protruded from the groove opening and partially arranged in the engagement portion, when the pillow portion is connected with the mounting component.