A chair comprises a seat pan member, a seat back member having a lumbar support member, a lumbar support assembly operatively connected to the lumbar support member and configured for moving the lumbar support member, with respect to the seat pan member and the seat back member, between at least a first position and a second position, and an actuator configured to operate the lumbar support assembly for movement of the lumbar support member between at least the first position and the second position. When the lumbar support member is in the second position, the lumbar support member is positioned forwardly, in a direction toward the seated user's lower back, relative to the seat back member so as to enable the user to be seated forwardly on the seat pan member while being engaged with the lumbar support member.

An electric rocking chair comprises a chair installed on a support base having a trapezoidal form with the two inclined faces disposed at the front and at the rear sides of the chair, the side's faces supporting the chair. The chair is electrically moved front to back by means of displacement, such as wheels, attached to the front and to the rear under the chair and intended to roll along both inclined faces on a see saw movement operated by means of an electric actuator disposal. The rocking of the chair is performed in two movements, when front wheels are going down along the front inclined face, rear wheels are going up along the rear inclined face, thus inclining the chair forward and the opposite movement inclines the chair backward. Means of maintaining the wheels during the rolling movement can be used, such as a metallic frame.

A chair comprises a seat pan member, a seat back member having a lumbar support member, a lumbar support assembly operatively connected to the lumbar support member and configured for moving the lumbar support member, with respect to the seat pan member and the seat back member, between at least a first position and a second position, and an actuator configured to operate the lumbar support assembly for movement of the lumbar support member between at least the first position and the second position. When the lumbar support member is in the second position, the lumbar support member is positioned forwardly, in a direction toward the seated user's lower back, relative to the seat back member so as to enable the user to be seated forwardly on the seat pan member while being engaged with the lumbar support member.

A leisure rotary swing chair including a chair frame, a base, a rotary assembly, a chute assembly, and a sliding rail assembly is provided. The base is connected to a bottom part of the chair frame to support the chair frame. The rotary assembly is rotatably connected to the base. The rotary assembly includes a fixed frame that rotates about the base and facilitates rotation of the chair frame. The chute assembly is disposed on the fixed frame of the rotary assembly. The sliding rail assembly is operably coupled to the chute assembly and disposed in the bottom part of the chair frame. The sliding rail assembly slides in the chute assembly to swing the chair frame back and forth.

A base seat for being used with a bed, a chair, or a sofa includes a fixation base provided thereon with two longitudinal wheel sets, a first rocking frame having two longitudinal arc rails in contact with the longitudinal wheel sets and two transverse wheel sets thereon, a second rocking frame including two transverse arc rails in contact with the transverse wheel sets, a first actuator disposed to the fixation base to drive the first rocking frame to reciprocatingly move back and forth while changing its angle, and a second actuator disposed to the first rocking frame to drive the second rocking frame to reciprocatingly move left and right while changing its angle. As a result, the base seat can generate multi-directional swinging motion, preventing users from feeling fatigued. Further, the swinging motion is smooth to effectively minimize the jerkiness during changes in swinging direction.