A reclining chair having a seat, backrest and armrest is provided. The armrest has a first portion associated with the seat and a second portion associated with the backrest. The first and second armrest portions are slidable relative to each other between a first position associated with a raised backrest and a second position associated with a reclined configuration. The armrest also has a locking mechanism of the sliding between the first and second armrest portions, and the locking mechanism has first and second locking seats and a locking element configured to couple alternatively to the first-or to the second locking seat. A coupling of the locking element to the first locking seat is associated with the first position and a coupling of the locking element to the second locking seat is associated with the second position.

Embodiments of the present invention disclose a lift chair assembly for assisting a user to transition between sitting and standing. The assembly includes a frame body, a backrest member coupled to the frame body, a seat member coupled to the frame body and configured to pivot about an axis relative to the frame body independently from the backrest member such that the seat member pivots between a neutral position and an elevated position, a motor that selectively pivots the seat member, and a controller that selectively engages the motor to pivot the seat member.

A chair that provides movement side-to-side about a first pivot axis positioned above the seat plane allows the user a wide range of dynamic movement, but does not require constant or excessive action on the part of the user to maintain a desired position. In addition and concurrently thereto, the chair may include structures that allow the seat to be easily positioned and adjusted side-to-side from a neutral position along a defined pivot axis above a seat plane, and it may, if desired, also provide forward-and-back movement of the seat about a second pivot located above or below the seat plane, an improved seatback that supports the user's back without limiting the user's ability to move their shoulder blades, an improved biasing structure for biasing the seat to a neutral position, an imbedded controller or imbedded sensor for allowing the seat's position to be used as a computer controller, or the gathering of the users motion data, and an adjustable tilt locking system to allow the forward-and-back movement of the seat to be held in a desired position.

A chair is realized which takes specific measures to suppress movement of a seat in a front-rear direction when the seat swings in the front-rear and the left-right directions with respect to a support base. For the purpose, the chair wherein a seat 5 swings in the front-rear and left-right directions with respect to a support base 2, the chair is configured such that swinging of the seat 5 in front-rear direction with respect to the support base 2 is capable of being suppressed at one or a plurality of predetermined positions, or arbitrary position via operation of operation member 152.

A seating furniture chassis comprises a seat surface frame, a backrest frame, two armrests, and a drive mechanism. The backrest frame is pivotable about a virtual pivot axis defined by two pivot points, wherein the backrest frame is fastened to the pivot points on the armrests. The drive mechanism is connected to the backrest frame by a translation mechanism. The drive mechanism is designed to trigger a translation of the translation mechanism, wherein the translation is converted into a pivoting movement of the backrest frame about the pivot axis. The backrest frame is connected below the pivot points to the seat surface frame so that during the pivoting movement the seat surface frame is moved translationally. The drive mechanism is arranged below a first lateral edge region of the seat surface frame.

A chair for fitness exercise includes a base, a stretching mechanism, a backrest, an armrest, a footrest and a supporting cushion. The stretching mechanism includes a pull rod and an elastic connector. One end of the elastic connector is fixedly connected to the base, and the other end of the elastic connector is connected to the pull rod. The base includes a footrest rod, and one end of the elastic connector is fixedly connected to the footrest rod. The backrest includes a backrest rod. The armrest is connected to the base, and an elastic assembly is fixedly arranged on the armrest. The footrest includes two side supporting rods. The supporting cushion is arranged between two side supporting rods. The elastic assembly includes a connecting rod, a first limiting member, a second limiting member, a third limiting member, a front spring, a rear spring, a first sleeve and an engaged key.

A reclining control system for a chair having a back and a seat including a rigid seat member having a bottom surface and a first rigid link having a first end and second end. The first end of the first rigid link may be adapted to engage the back and the second end of the first rigid link may be positioned proximally adjacent to the bottom surface of the rigid seat member. A rigid link may have a first end and a second end, where the first end of the rigid link may engage the bottom surface of the rigid seat member at an engagement point. The second end of rigid link may engage the second end of the first rigid link in an aft position. The reclining control system for a chair may further include a pivoting link having a first end and a second end. The first end of the pivoting link may engage the bottom surface of the rigid seat member at the engagement point and the second end of the pivoting link may engage the second end of the first rigid link in a fore position. The rigid link moves the rigid seat member from a non-reclining position in a downward and backward direction and the pivoting rigid link moves the back to a reclining position.

An assembly for a chair and a chair including the same are provided. The assembly includes a body coupled to an upper portion of a leg of the chair, a pair of supports extending forward from opposite sides of the body and coupled to a bottom surface of a seating part, and a pair of connecting frames extending backward from the opposite sides of the body, bent upward, and shaft-coupled to the opposite sides of the body and the seating part. A tilting operation is performed to rotate downward the seating part and a backrest to adjust inclinations of the seating part and the backrest using a weight of a user applied to the seating part and elastic force of the support and the connecting frame.

An office seat is disclosed. The office seat includes a seat body; an adjustment mechanism for adjusting a sitting posture of a user by adjusting a state of the seat body, and the adjustment mechanism being provided on the seat body; an image capture device for detecting the contour of the user's body; a controller, the controller being connected to the adjustment mechanism and the image capture device, respectively, and controlling the adjustment mechanism to adjust the seat body according to the detection result of the image capture device. In certain embodiments the office seat may be able to adjust the user's sitting posture, protect the user's physical health, be comfortable in use.

The invention relates to a vehicle seat comprising a backrest portion and a seating surface portion, each of which is arranged to be connected with a seat base portion, wherein the backrest portion is resiliently arranged and supported to be able to swivel with respect to the seat base portion, and wherein the seating surface portion is arranged to be able to move in at least a longitudinal direction of the seat frontwards and rearwards with respect to the seat base portion, wherein the backrest portion and the seating surface portion are operatively connected together via a first lever arrangement in such a way that the seating surface portion is able to move rearwards in the longitudinal direction of the seat when the backrest portion makes a suspending movement with respect to the seat base portion in a direction away from the seating surface portion.