“Thron” is Swedish for throne and so is the ideal name for the product being described here in this abstract. A novel and unique ergonomic chair created for the purpose of sitting for extended periods of time. The human body when forced to remain sedimentary begins to accumulate neural toxins. Toxins like uric and lactic acid become difficult to remove from the body because of a lax seated position over a prolonged period of time. The intended use of Thron as an ergonomic chair is to increase blood circulation and enhance postural awareness from sitting on the air-filled rubber inserts.

A resilient backrest dampening mechanism is provided for use with chairs having a seat and a backrest, the mechanism comprising four pivot points; a first pivot point arranged on a base different from the backrest; a second pivot point arranged at a distance from the first pivot point on the base, wherein a bracket is pivotally connected to the second pivot point; a third pivot point provided between the bracket and a first end of a backrest connection member, and the backrest connection member being adjustably connected to the backrest; a fourth pivot point provided in the bracket; a resilient member arranged between the fourth pivot point and the first pivot point, and wherein all the pivot points pivot around corresponding axes and all of the axes are parallel.

An ergonomic massage chair is configured with back and bottom structures held up by a pair of legs. The various support bars and structure of the ergonomic massage chair may be comprised of, in typical implementations, metal, but plastic and other suitable structures are also possible. The back structure has perimeter support bars that form the base of the back support, and horizontal support bars extend from a left perimeter support bar to a right perimeter support bar. The bottom structure likewise has a perimeter support bar that forms the structure of the bottom. A horizontal support bar extends from a left perimeter support bar to a right perimeter support bar. Nodes are attached to the ergonomic chair, and stability balls fit inside openings created by the support bars and nodes. A cover having memory foam pillows therein encapsulates the chair to provide users with customized setups that suit them.

The disclosure relates to the field of seat design and manufacture, in particular to a lumbar support seat. The disclosure is achieved by the following technical solution: a lumbar support seat, comprising a lumbar support and a gas spring; the lumbar support closely fits with the back of human body through the expansion of the gas spring when the back is moved, to provide continuous and uniform uplift force. An object of the disclosure is to overcome defects of the prior art and provide a lumbar support seat. When the user moves on the seat back and forth, the lumbar support may move synchronously in contact with the back of the human body, to fit with the waist in real time, thereby increasing the supporting force in waist position of the human body.

The invention relates to a seating assembly (100) comprising a basic frame (101), a seat unit (102), and a back-support unit (103) wherein the seat unit and the back-support unit have a common pivoting axis (P) with respect to the frame at the level of the hip joint. Hence, based on human body like biomechanics and physiognomy, the seating assembly, particularly for ergonomic chairs or wheelchairs, provides a highly improved seating comfort, even with therapeutic effect.

An air cushion device for a seat includes at least one first air cushion and a second air cushion, first and second air inlets, first and second air ducts, and a device preventing the second air duct from being pinched off by a fixing wire of a seat cover.

The disclosure relates to the field of seat design and manufacture, in particular to a lumbar support seat. The disclosure is achieved by the following technical solution: a lumbar support seat, comprising a lumbar support and a gas spring; the lumbar support closely fits with the back of human body through the expansion of the gas spring when the back is moved, to provide continuous and uniform uplift force. An object of the disclosure is to overcome defects of the prior art and provide a lumbar support seat. When the user moves on the seat back and forth, the lumbar support may move synchronously in contact with the back of the human body, to fit with the waist in real time, thereby increasing the supporting force in waist position of the human body.

A resilient backrest dampening mechanism is provided for use with chairs having a seat and a backrest, the mechanism comprising four pivot points; a first pivot point arranged on a base different from the backrest; a second pivot point arranged at a distance from the first pivot point on the base, wherein a bracket is pivotally connected to the second pivot point; a third pivot point provided between the bracket and a first end of a backrest connection member, and the backrest connection member being adjustably connected to the backrest; a fourth pivot point provided in the bracket; a resilient member arranged between the fourth pivot point and the first pivot point, and wherein all the pivot points pivot around corresponding axes and all of the axes are parallel.

A chair has a seat portion and a leg portion. The seat portion and the leg portion are joined by a structure that allows that seat portion to wobble relative to the leg portion. The structure can include one or more resilient member to create the wobble and one or more motion restrictor member to limit the amount of wobble or prevent wobble.

A chair has a seat portion and a leg portion. The seat portion and the leg portion are joined by a structure that allows that seat portion to wobble relative to the leg portion. The structure can including one or more resilient member to create the wobble and one or more motion restrictor member to limit the amount of wobble or prevent wobble.