The present disclosure relates to a chair back assembly with an outer frame and an inner frame, wherein the outer frame is manufactured of different material than the inner frame to allow for a variety in support throughout the chair back assembly, resulting in localized support throughout the back of the chair. The availability of localized support results in an improvement in comfort and may also improve production in embodiments utilizing a foam covering. Specifically, the inner frame of the chair back assembly may include at least one vertical member and at least one horizontal member to provide additional support to the user.

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. A dimensionally stabilizing substrate is secured to at least some of the strings on one of the top and bottom surfaces of the strings. A scrim sheet is secured to at least some of the strings on an opposed surface of the strings to maintain the positions of the strings. The dimensionally stabilizing substrate is laterally rigid enough to maintain length and width dimensions of the coil spring assembly. However, the dimensionally stabilizing substrate is flexible enough to allow the pocketed spring assembly to be roll packed for shipping.

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. A dimensionally stabilizing substrate is secured to at least some of the strings on one of the top and bottom surfaces of the strings. A scrim sheet is secured to at least some of the strings on an opposed surface of the strings to maintain the positions of the strings. The dimensionally stabilizing substrate is laterally rigid enough to maintain length and width dimensions of the coil spring assembly. However, the dimensionally stabilizing substrate is flexible enough to allow the pocketed spring assembly to be roll packed for shipping.

An exercise chair includes a seat assembly, a backrest, a movable supporting member, a position-limiting device, and a resilient position-restoring element. The backrest is pivotally connected to a pivotal connection portion of the seat assembly. The movable supporting member includes a roller for contact with the ground and is pivotally connected to the backside of the backrest. When the tilted state of the backrest is changed, the movable supporting member changes the position at which the ground is in contact with the roller, lest the exercise chair tip over backward. The position-limiting device is connected between the pivotal connection portion and the movable supporting member to adjust and limit the aforesaid contact position. Should the position-limiting device fail, a second position-limiting device provided on the backrest can prevent the exercise chair from falling backward. The resilient position-restoring element helps restore the exercise chair to its most compact configuration.

An exercise chair includes a seat assembly, a backrest, a movable supporting member, a position-limiting device, and a resilient position-restoring element. The backrest is pivotally connected to a pivotal connection portion of the seat assembly. The movable supporting member includes a roller for contact with the ground and is pivotally connected to the backside of the backrest. When the tilted state of the backrest is changed, the movable supporting member changes the position at which the ground is in contact with the roller, lest the exercise chair tip over backward. The position-limiting device is connected between the pivotal connection portion and the movable supporting member to adjust and limit the aforesaid contact position. Should the position-limiting device fail, a second position-limiting device provided on the backrest can prevent the exercise chair from falling backward. The resilient position-restoring element helps restore the exercise chair to its most compact configuration.

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.

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.

A seating configuration is described. The seating configuration includes a seat. The seat includes a feature to retain a user in a specific position on the seat. The seating configuration includes a first back support. The first back support is positioned adjacent a posterior pelvic area of the user. The seating configuration includes a second back support. The second back support is positioned adjacent to the thoracic area of the user. The seat, the first back support, and the second back support together can be configured to create a natural alignment of a spinal column of the user.

A seating configuration is described. The seating configuration includes a seat. The seat includes a feature to retain a user in a specific position on the seat. The seating configuration includes a first back support. The first back support is positioned adjacent a posterior pelvic area of the user. The seating configuration includes a second back support. The second back support is positioned adjacent to the thoracic area of the user. The seat, the first back support, and the second back support together can be configured to create a natural alignment of a spinal column of the user.

A method for the production of a piece of furniture such as a seat, a bed, a table, the piece of furniture including at least one furniture component (10), the method including the steps of making a blank (11) of expanded polystyrene (EPS) with density between 15 and 25 kg/me, the blank (11) being configured to act as a core for the furniture component (10); providing an interface surface (12) in the blank (11); making a rigid insert (13) in rigid material having an engagement portion (14) configured to engage with the interface surface (12) of the blank (11) and a first connection portion (15) opposite the engagement portion; joining the rigid insert (13) and the interface surface (12) so that the engagement portion (14) is engaged with the interface surface (12) and the first connection portion (15) faces aside opposite to the blank (11); coating the blank (11) and the rigid insert (13) by at least one coating layer (30) of polyurethane material, so that the coating layer (30) completely covers the blank (11) and the insert (13), with the exception of at least one part (16) of the first connection portion (15).