A portable hair cutting chair is disclosed. The chair mainly includes a seat area pivotally mounted on an adjustable support structure and defining a horizontal plane. An adjustable backrest area coupled to the seat area through a plurality of screws. Two armrests connected between the backrest area and the seat area. A central pneumatic lift rotatably coupled to a lower side of the seat area. A plurality of adjustable angled stands disposed at one end to the central pneumatic lift by a hinge connection and at second end to the ground. The stands are configured to slide along the floor and adjust the height of the seat area accordingly. A footrest area disposed inclinedly downwards from the seat area and configured to be inclined and/or reclined with respect to movement of the plurality of adjustable angled stands.

A portable hair cutting chair is disclosed. The chair mainly includes a seat area pivotally mounted on an adjustable support structure and defining a horizontal plane. An adjustable backrest area coupled to the seat area through a plurality of screws. Two armrests connected between the backrest area and the seat area. A central pneumatic lift rotatably coupled to a lower side of the seat area. A plurality of adjustable angled stands disposed at one end to the central pneumatic lift by a hinge connection and at second end to the ground. The stands are configured to slide along the floor and adjust the height of the seat area accordingly. A footrest area disposed inclinedly downwards from the seat area and configured to be inclined and/or reclined with respect to movement of the plurality of adjustable angled stands.

A wall-proximity reclining seating unit includes: a frame having a back member and a pair of arms, the back member extending between the arms; a backrest; a seat; a first footrest; and a reclining mechanism connected between the frame, backrest, seat, and first footrest. The reclining mechanism comprises a series of pivotally interconnected links and is configured to move the seating unit between: (a) an upright position, (b) a TV position, in which the first footrest is extended in front of the seat and is generally horizontally disposed, and the seat and backrest are moved forwardly relative to the frame; and (c) a fully reclined position, in which the first footrest remains extended in front of the seat, and the seat is moved forward of its position in the TV position. The seating unit also includes a headrest mechanism attached to the headrest and the backrest, the headrest mechanism configured to move the headrest between a retracted position, in which the headrest is generally horizontally disposed and overlies the backrest and the back member, and an extended position, in which the headrest is generally upright and generally parallel with the backrest

A wall-proximity reclining seating unit includes: a frame having a back member and a pair of arms, the back member extending between the arms; a backrest; a seat; a first footrest; and a reclining mechanism connected between the frame, backrest, seat, and first footrest. The reclining mechanism comprises a series of pivotally interconnected links and is configured to move the seating unit between: (a) an upright position, (b) a TV position, in which the first footrest is extended in front of the seat and is generally horizontally disposed, and the seat and backrest are moved forwardly relative to the frame; and (c) a fully reclined position, in which the first footrest remains extended in front of the seat, and the seat is moved forward of its position in the TV position. The seating unit also includes a headrest mechanism attached to the headrest and the backrest, the headrest mechanism configured to move the headrest between a retracted position, in which the headrest is generally horizontally disposed and overlies the backrest and the back member, and an extended position, in which the headrest is generally upright and generally parallel with the backrest

A mechanical linkage structure for linking a chair and a seat, comprises a first link, a second link, and a third link respectively used as a driven link, a fourth link used as a driving link, a fifth link, a sixth link, and a seventh link respectively used as a driven link. The first link is pivotally connected to the second link and the third link, respectively; the second link is pivotally connected to the fourth link and the fifth link, respectively; the third link is pivotally connected to the fourth link, the fifth link, and the seventh link, respectively; the fifth link is pivotally connected to the sixth link; the sixth link is pivotally connected to the seventh link; the fourth link is driven to rotate the first link, the second link, the third link, the fifth link, the sixth link and the seventh link, to realize the unfolding or collapse of the mechanical linkage structure.

A mechanical linkage structure for linking a chair and a seat, comprises a first link, a second link, and a third link respectively used as a driven link, a fourth link used as a driving link, a fifth link, a sixth link, and a seventh link respectively used as a driven link. The first link is pivotally connected to the second link and the third link, respectively; the second link is pivotally connected to the fourth link and the fifth link, respectively; the third link is pivotally connected to the fourth link, the fifth link, and the seventh link, respectively; the fifth link is pivotally connected to the sixth link; the sixth link is pivotally connected to the seventh link; the fourth link is driven to rotate the first link, the second link, the third link, the fifth link, the sixth link and the seventh link, to realize the unfolding or collapse of the mechanical linkage structure.

A seat positioning system includes a base frame having a pair of forward slots and a pair of rear slots, and a seat frame having a front end and a back end. The seat frame is coupled to the base frame and movable relative to the base frame. A first pair of linkages is slideably coupled to the pair of forward slots and connects the frames. A first pair of locking devices has a locked configuration adapted to prevent the first pair of linkages from sliding relative to the pair of forward slots and an unlocked configuration adapted to allow the first pair of linkages to slide relative to the pair of forward slots. A second pair of linkages slideably is coupled to the pair of rear slots and connects the frames. An actuator is pivotally connected to both the seat frame and the base frame and is configured to extend and contract to move the seat frame relative to the base frame.

A seat positioning system includes a base frame having a pair of forward slots and a pair of rear slots, and a seat frame having a front end and a back end. The seat frame is coupled to the base frame and movable relative to the base frame. A first pair of linkages is slideably coupled to the pair of forward slots and connects the frames. A first pair of locking devices has a locked configuration adapted to prevent the first pair of linkages from sliding relative to the pair of forward slots and an unlocked configuration adapted to allow the first pair of linkages to slide relative to the pair of forward slots. A second pair of linkages slideably is coupled to the pair of rear slots and connects the frames. An actuator is pivotally connected to both the seat frame and the base frame and is configured to extend and contract to move the seat frame relative to the base frame.

A control system for a piece of furniture includes a control panel configured to receive input from a user, a control module configured to control actuators coupled to movable components of the piece of furniture, and a battery system. The control module is configured to, in response to the input from the user indicating an intent to return the movable components to respective home positions, perform a homing sequence. The homing sequence includes selecting a first actuator according to a specified order, determining a home location for the selected actuator, and beginning to drive the selected actuator toward the home location. The homing sequence includes repeatedly selecting a next actuator according to the specified order and repeating the determining and the beginning. The homing sequence includes determining whether mains electricity is present and, if not, pausing the repeatedly selecting until less than a threshold number of actuators are in motion.

A control system for a piece of furniture includes a control panel configured to receive input from a user, a control module configured to control actuators coupled to movable components of the piece of furniture, and a battery system. The control module is configured to, in response to the input from the user indicating an intent to return the movable components to respective home positions, perform a homing sequence. The homing sequence includes selecting a first actuator according to a specified order, determining a home location for the selected actuator, and beginning to drive the selected actuator toward the home location. The homing sequence includes repeatedly selecting a next actuator according to the specified order and repeating the determining and the beginning. The homing sequence includes determining whether mains electricity is present and, if not, pausing the repeatedly selecting until less than a threshold number of actuators are in motion.