An assistive device for standing tasks allows for a reduction of effort on the part of a user while engaged in tasks or activities that are stationary or nearly stationary that lessens the strain on the bones, joints, and muscles normally used for standing while ensuring a proper alignment of the pelvis and spine.

An office-type chair includes a base, a height-adjustable pedestal extending upward from the base, a seat assembly including a rear seat part and a front seat part, and a linkage system connecting the pedestal to the seat assembly. The linkage system is adapted to pivot the seat assembly between a lowered position to serve as a task chair and an elevated position to serve as an elevated sitting support. A backrest arrangement may extend from the seat assembly. In the lowered position, the front and rear seat parts are both generally horizontally oriented. In the elevated position, the rear seat part may have a slight forward tilt and be positioned higher than in the lowered position, and the front seat part may extend at a downward angle relative to the rear seat part.

A wearable chair may include a foot frame configured to support a foot of a user; a shank link configured to rotatably connect to the foot frame; a connecting link provided in front of the shank link and configured to rotatably connect to the foot frame; a knee link configured to rotatably connect to each of the shank link and the connecting link; and a thigh link configured to extend from the knee link. The foot frame, the shank link, the connecting link, and the knee link constitute a four-bar linkage.

A saddle chair contains: a first seat and a second seat. The first seat includes a first connection sheet and an elongated orifice. The second seat includes a second connection sheet and a through orifice. A fixing member includes a slide slot having a slidable face, a receiving orifice, and a chute. A drive member is connected with a retainer via the receiving orifice, the elongated orifice, and the through orifice. The retainer includes a contacting face. Two screw bolts are screwed with the drive member via the retainer. A control bolt is screwed with a threaded orifice of the drive member and includes at least one recess on which at least one engagement block is fitted. Each engagement block has a screw and a forcing edge sliding between the slidable face and the chute, when the control bolt is rotated to move along the threaded orifice.

A sliding stop switch may include a first rod extending in the longitudinal direction thereof, a second rod coupled to the first rod such that one end portion thereof is slidable in the longitudinal direction of the first rod, and a switch member coupled to the first rod to slide in the longitudinal direction of the first rod and to be fixed at a plurality of points on the first rod to stop the sliding of one end portion of the second rod.

A wearable chair may include an upper rod extending in the longitudinal direction thereof, a lower rod, the upper end portion of the lower rod being rotatably coupled to the lower end portion of the upper rod, the lower end portion of the lower rod being configured to contact the ground when the user sits down, a lower leg fixing unit configured of extending in the longitudinal direction of the lower leg of the user to be coupled to the rear of the lower leg of the user, the distance between the lower leg fixing unit and the lower rod being varied when the lower leg fixing unit slides in the longitudinal direction of the lower rod, and a support rod having a lower end portion rotatably coupled to the lower rod and an upper end portion slidably coupled to the upper rod to slide within a specific section of the upper rod.

An apparatus for use with a wall and by a person leaning against the wall and including: a receiver mounted in use to the wall; a support having an operative position whereat the support generally follows the curvature of the buttocks of the person; and a mechanism adapted to suspend the support from the receiver at the operative position.

A chair is provided having at least one leg with an upper end on which a seat component is supported and a backrest interconnected to and projecting from the seat component. The backrest comprises a lower backrest section, an upper backrest section, and a backrest hinge interconnecting the upper backrest section to an upper end of the lower backrest section. The lower backrest section is interconnected to and extends from a rear portion of the seat component and the backrest hinge is configured to permit the upper backrest section to be located in an upright position in which the upper backrest section projects above the lower backrest section and is configured to permit the upper backrest section to be pivoted to a forward position in which the upper backrest section extends laterally over and spaced above the seat component.

A torso supporting chair having a chair and front support. The chair has a seat support and at least one leg. The seat support having a top side and a bottom side, with the at least one leg attached to the bottom side. A front support is in functional combination the chair and may be integrally mounted with the at least one leg such that the front support is configured for seating of a user such that when the user is seated the chest of the user is adjacent and facing the front support. The torso support chair is configured to support the front torso of a user when seated.

An activating platform is disclosed. The platform includes a base that has a lower surface that is curved in a direction transverse to a longitudinal axis. The curved shape of the base provokes a user rock around in a small angle around a middle position, thereby promoting active sitting.