A back-following support device, a control method for preventing sedentariness, and a chair are provided. The back-following support device including: a backrest plate; a flexible back and waist support, including a cushion airbag disposed over the backrest plate; and a control system, including a controller, an air supply device for inflating the cushion airbag, a pressure-regulating valve for controlling the amount of air in the cushion airbag, and an air pressure sensor for detecting air pressure inside the cushion airbag; the air supply device, the pressure-regulating valve, and the air pressure sensor are all connected to the controller. The seat and the back-following support device can be adjusted to make the chair more comfortable, thereby effectively supporting the user's waist and/or back and meeting requirements of different people.

A seat back assembly and method of manufacture is provided. The seat back includes a foam cushion layer. A support sub-assembly is formed including a rigid support layer with a plurality of cavities and channels defined on a rear surface for receiving components and a generally smooth front surface. At least one component is retained in one of the cavities and a second component is secured on the front surface of the support layer. A trim material covers the cushion layer and secures the sub-assembly to the seat back.

A vehicle seat includes a seat back frame with an upper subframe pivot. A seat back subframe is pivotably connected to the seat back frame at the upper subframe pivot. An actuation assembly pivotably moves the seat back subframe relative to the seat back frame about the upper subframe pivot, between a seat back subframe design position and a subframe recline position. In the recline position a lower edge of the seat back subframe is positioned outwardly relative to the seat back frame with the seat back subframe pivoted to an angle relative to the seat back frame.

An inflatable chair pad assembly for selectively cushioning a user includes a chair, such as one that is positioned in a vehicle, a residence, an office, and a barber shop. The chair has a seat and a backrest. The backrest is coupled to and extends from a rear edge of the seat. The backrest is configured to support a head, a neck, and a back of a user who is positioned upon the seat. A first bladder is coupled to a front of the backrest. The first bladder is selectively inflatable. The first bladder is configured to be selectively inflated to cushion the head, the neck, and the back of the user who is positioned upon the seat.

Systems herein provide a customizable camp chair cover that may provide additional functional features and/or aesthetic elements to portable seating. In some examples, portions of the camp chair cover are inflatable and/or receive inserted inflation devices for customized support at various areas of seating when attached to the chair. Portions of the camp chair cover may be configured to provide access to portions of the chair and/or accessories. The camp chair cover may also be customized to provide team logos, designs, colors, and other aesthetic elements.

Systems and methods herein provide a customizable camp chair that may provide added levels of comfort to portable seating. In some examples, portions of the camp chair are inflatable to provide customized support at various areas of the chair. In other examples, portions of the camp chair are configured to receive inserted inflation devices for customized support at various areas of the chair. The chair may include an integrated air pump, which aids in inflation.

The wave therapy method includes providing an occupant surface for accepting an occupant thereon and a control unit for holding a specific pressure, based on the weight of the occupant of the surface, for a preferred first preselected duration and continuously adjusting the pressure applied. Continuously adjusting the pressure comprises may include increasing the pressure by a preselected amount and holding this new pressure for a second preselected duration, decreasing the pressure by the preselected amount to return the surface to the original set low pressure, repeating the cycle one or more times.

In an embodiment, there is provided a chair including: a chair body; at least one sensing element on the chair body for sensing a human body pressure on the chair body; at least one gasbag on the chair body for supporting a waist of a human body; a gas pump for performing inflation and deflation of the at least one gasbag; and a control assembly in signal connection with the at least one sensing element for controlling the gas pump to perform inflation and deflation of the at least one gasbag according to information acquired by the sensing element.

A seating device and seating device backrest are described. The seating device and backrest have a seat portion dimensioned for an occupant; a support arm coupled to seat portion proximate a first end of the support arm; a mounting receptacle coupled to the support arm proximate a second end of the support arm, wherein the mounting receptacle is configured to accept a substantially convex body, and wherein the support arm is configured to position the mounting receptacle at an angle such that the convex body makes focal contact at an seat occupant's optimally concave lumbar/thoracic spinal regions.

A system for supporting a user in a plurality of ergonomic positions that includes a first assembly and a second, separate assembly. The first assembly includes first and second components that are adjustable to support the user in first and second different postures. The second assembly includes separate first and second components that are adjustable to support the user in the first and second postures. Upon the relative position of the second assembly first and second components being changed from the first to the second position, a second assembly processor transmits a wireless signal to a receiver of the first assembly. Upon receiving the wireless signal, a first assembly processor controls an actuator to adjust the position of the first assembly first and second components from the first position to the second position.