Seating and/or lounging furniture with a footrest coupled to a frame via a linkage mechanism designed as a scissor mechanism. A drive mechanism extends and retracts the footrest, and includes: at least one first linkage articulatedly fastened at one end to a first hinge point on the frame, and having a second end with a second hinge point, at least one second linkage articulatedly coupled at a first end to the first linkage at the second hinge point, and having a second end coupled to a third hinge point provided on the linkage mechanism, and the first and second hinge points defining a first straight line, and the second and third hinge points defining a second straight line, in an extended position of the footrest, the first and second straight lines enclosing an angle of 180+/5 relative to one another.

The chair of the present disclosure balances safety, comfort, ergonomics, numerous desk geometries, a variety of floor surfaces, the physics of cantilevered elements, the height of floor obstacles, and a large range of body types/sizes. It can address the recommendations of ergonomic experts and adds the unique forward footrest/exercise bar for stretching, core workouts, and to increase the variety of ergonomic seating positions. The entire product can fold into a compact light weight package for easy transport and stowage.

A seating and/or lounging furniture includes: a seat frame; an extendable footrest; a footrest frame, which is displaceable on the seat frame, and on the front end of which the footrest is held movably, pivotable around a pivot axis; at least one drive for displacement of the footrest frame along a displacement distance relative to the seat frame; and at least one operating rod for swinging the footrest in and out, around the pivot axis, wherein the operating rod is connected at one end to the footrest, while the other end of the operating rod is connected to the seat frame by means of a hinge mechanism, so that displacement of the footrest frame over at least 60%, preferably over at least 80%, and extremely preferably over at least 90% of the displacement distance causes a simultaneous pivoting movement of the footrest about the pivot axis.

A chair for supporting a body of a user in a substantially upright position relative to a vertical-axis; the chair includes a frame, a chest-support, a seat and at least one knee-support. In a preferred embodiment, the chair includes a tray configured to hold items/tools such as dentist equipment. The chair is useful for supporting the body of the user who needs to be seated for a prolonged period of time, to prevent un-comfort associated with the same.

A split ottoman linkage is provided that has a slotted upper ottoman bracket. The slot of the upper ottoman bracket is shaped to maintain the pivotal coupling between the upper ottoman bracket and a front ottoman link in normal operation. If an entrapment is encountered as the split ottoman linkage closes, the slotted connection allows the upper ottoman bracket to pivot away from the entrapment to provide some relief.

The chair of the present disclosure balances safety, comfort, ergonomics, numerous desk geometries, a variety of floor surfaces, the physics of cantilevered elements, the height of floor obstacles, and a large range of body types/sizes. It can address the recommendations of ergonomic experts and adds the unique forward footrest/exercise bar for stretching, core workouts, and to increase the variety of ergonomic seating positions. The entire product can fold into a compact light weight package for easy transport and stowage.

A chair support assembly is provided which can comprise a bracket assembly having a horizontal bracket and a vertical bracket, the vertical bracket extending from the horizontal bracket at a substantially perpendicular orientation relative to the vertical bracket, and an adjustable arm telescopically coupled to the horizontal bracket, the adjustable arm slideably moveable in a longitudinal direction of the chair support assembly. The chair support assembly can also comprise a shin support assembly slideably coupled to the vertical bracket, the shin support assembly including a shin rest that is sized and shaped to rest against a shin of a user. Related methods of use are also provided.

An ergonomic chair has a back support member and means for arranging and supporting legs of the user in an asymmetric configuration, with a first leg extending in front of a body of the user and a second leg aligned with or extending behind the body of the user. An angle between the first and second legs in a side view can be at least 30 degrees. The means for arranging and supporting legs can comprise one or more fixed structures that support the first leg in a first orientation, or one or more dynamic structures that can be positioned by the user to support the first leg in a first orientation. In some embodiments, with the legs of the user in the asymmetric configuration, a centerline of the user is offset from a centerline of the back support member with respect to a lateral direction.

The chair of the present disclosure balances safety, comfort, ergonomics, numerous desk geometries, a variety of floor surfaces, the physics of cantilevered elements, the height of floor obstacles, and a large range of body types/sizes. It can address the recommendations of ergonomic experts and adds the unique forward footrest/exercise bar for stretching, core workouts, and to increase the variety of ergonomic seating positions. The entire product can fold into a compact light weight package for easy transport and stowage.

A chair for providing seating support to a user and for providing ways for the user to perform exercises. The chair includes a back support that is flexible such that when a force is applied to it by the user's body, the back support bends. The back support may be configured to adapt to the curvature of the user's spine when the user is seated in the chair. The back support may further be configured such that the user can rotate the back support by rotating the user's upper body.