A method for using a back lifting chair designed for treating and preventing back problems by monitoring posture, weight distribution, and sitting duration of an occupant of a seating device, and reducing pressure on a user's spinal disc by adjusting the user's posture. The method allows for an up-lifting motion on the user's torso, reducing the weight and pressure asserted on the lumbar disc, and preventing any further damage to it. The method allows for an upward and downward movement, hence partially or completely lifting the user from the seat, effectively reducing the pressure on the user's spine and back. The upward motion can be initialized by the user, or alternatively, it can be automatically activated by the weight sensor installed on the seat device which detects the prolonged period of sitting.

A chair for providing support to a user's spine to improve posture and for providing ways for the user to perform exercises. The chair may include a flexible connection that enables a back support to move side to side through a sidebending range of motion of the user. The back support, which may include a flexible chair spine, may be configured to adapt to the curvature of the user's spine when the user is seated in the chair. A seat of the chair may include channels and vents to improve air circulation within the seat.

The present invention relates to a piece of furniture comprising at least one adjustable use portion, in particular an office chair having an adjustable seat and/or an adjustable backrest. The present invention further relates to an adjusting assembly that can be used, for example, for a piece of furniture of said type.

An orthopedic device for improving posture while sitting, having a foundation member including a front portion for upper legs and a bowl portion for lower pelvic area. The bowl portion has a central portion and an upwardly inclined lateral portion. The lateral portion and the front portion collectively surround the central portion. A channel attachment is connected with one or more pelvic crest portions. The channel attachment portion connects over a concave recessed portion. The central portion has plural regions of varying flexibility and the lateral portion has plural regions of varying flexibility.

A thoracic support for a seatback of a seat is provided. The thoracic support has a center portion extending in an upright direction and adapted to be positioned adjacent the seatback to align adjacent a thoracic region a user's spine and having a first hardness. A pair of side portions are each disposed on opposing lateral sides of the center portion. The side portions have a second hardness less than the first hardness of the center portion. The pair of side portions and the center portion to define a smooth forward support surface.

A slide structure of a chair back adjusting device is disclosed. The chair back adjusting device includes a support plate, an adjustor assembly arranged on the support plate, and a slide slidably sleeved on the support plate. The slide includes a through opening. At least one slide resisting rib is arranged, in a manner of being integrally formed therewith, at one side of interior of the through opening. As such, operation of assembling the slide is simplified to thereby reduce the cost of the chair back adjusting device.

A system and method for aircraft passenger seating allows traditional passenger seats, which have fixed configurations, to meet new specifications. A bottom frame and backrest frame from a traditional passenger seat is used to form a new passenger seat. Features, such as improved cushioning, telescopic or fixed headrests, rotatable or fixed footrests and improve armrest assemblies may be added as part of the new passenger seat.

An intelligence computer desk and chair system includes a platform, a carriage, and a control unit. The carriage is located on the platform. The control unit is electrically connected to the carriage. The control unit controls the carriage to move relative to the platform according to a built-in program.

A seat assembly for task-oriented seating comprises a seat support and a seat coupled to the seat support. The seat is movable under load, such as from the user's weight and movements, relative to the seat support. The seat has a cushion molded over a supporting armature with multiple bias elements. The seat and seat support are configured to deflect by predetermined amounts at defined locations over an extent of the seat assembly. In this way, the seat assembly provides for a range of comfortable and effective positions for users engaged in different active motions and having different preferences and sizes.

A height adjusting mechanism for a dentistry stool comprises a support member, a movable height adjusting assembly and a pushbutton actuator. The support member is coupleable to the stool adjacent a seat of the stool. The movable height adjusting assembly is selectively movable up and down relative to the support member. The pushbutton actuator is positionable on a side of the movable height adjusting assembly adjacent a seated user, and is manually actuatable by the seated user to release the movable height adjusting assembly from a locked position at a current height to allow the movable height adjusting assembly to be moved to a new height. The height adjusting mechanism can be implemented to provide a height-adjustable seat back and/or a height-adjustable torso bar.