A foldable multifunction chair including a base for contacting a support surface; a user body support having a support front surface for contacting a user body, the user body support being adjustably pivotably mounted to the base along a transversal axis; a selectively adjustable chair deployment mechanism cooperatively coupled to the base and the user body support, the chair deployment mechanism being configured for selectively adjusting the user body support to a desired angle relative to the base; and a locking mechanism configured for angularly locking the user body support to the desired angle relative to the base. The chair may be used, e.g., as a backrest with an accessory support positioned in front thereof for work, or as a seated workstation wherein the accessory support is positioned adjacent a rear surface of the user body support in a deployed position, and the collapsible seat in a deployed position.

An apparatus that supports a user in a variety of positions to comfortably perform tasks, such as applying one or more tattoos to skin of a subject is herein disclosed. The apparatus can be reconfigured to optimally position and support the arms and/or chest of the user. A method for using a stool can involve rotating armrests of the apparatus from a stowed position to a deployed position. The armrests can support the user's forearms while supporting the user's chest such that the user can comfortably perform tasks in front of a chest support of the stool.

A chair includes a back member and arm brackets. The back member is tapered toward an end that is adjacent to a seat. The arm brackets are attached under a bottom portion of the seat. Each arm bracket is adjustable to provide a seat clearance area for the seat when one or more of the arm brackets are adjusted up to approximately 90 degrees from an original upright position.

A convertible seat including: a support frame; and a user support having a support surface on one side defining a rounded periphery, the user support being movable from a first configuration supported by the support frame with the rounded periphery presented upwardly, to a second configuration supported by the support frame such that a seat or seat base is presented upwardly, the seat or seat base being substantially flat or at least less rounded than the rounded periphery, with the support surface being stowed substantially below the seat or seat base in the second configuration. The seat allows the attainment in a single unit both the healthy balance/core-strengthening of a fitness chair and a conventional chair.

Armrest (10) comprising a base (19) and an arm (13) that can be moved by a mount (17) between at least one use position and a non-use position, wherein the arm (13) is movable by the mount (17) axially of a pivot axis (a) between a proximal and a distal position, and is pivotable about the pivot axis (a) between a primary and a secondary position, wherein the armrest (10) has an actuator (30) comprising a motor drive having a drive part (29) that is movable between a first and a second position in order to displace the arm (13) in a first direction (y.sub.1) between the non-use position and the use position, at least in part, wherein the actuator (30) has at least one spring (21) that can be tensioned upon movement of the drive part (29) or an additional drive part (29) of the actuator (30), wherein the arm (13) can be moved axially, in a second direction (y.sub.2) by the spring (21), which second direction is directed opposite the first direction (y.sub.1).

A bleacher seat with retractable and foldable armrests comprises two hook assemblies, a cushion assembly, a backrest assembly, two cushion-backrest connecting assemblies and two armrest assemblies, wherein the two hook assemblies are symmetrically arranged at the front end of the bottom surface of the cushion assembly, the lower ends of the two symmetrical cushion-backrest connecting assemblies are fixedly mounted at the rear ends of left and right sides of the cushion assembly respectively, and the upper ends of the two cushion-backrest connecting assemblies are symmetrically arranged at and rotatably connected to the lower ends of two sides of the backrest assembly. The two armrest assemblies are arranged symmetrically, the upper end and lower end of each armrest assembly are rotatably connected to a corresponding side of the cushion assembly and a corresponding side of the backrest assembly respectively, and the armrest assemblies are retractable; and a detachable cushion cloth is arranged on the cushion assembly, and a detachable backrest cloth is arranged on the backrest assembly. Armrests of the bleacher seat are retractable and foldable, all components are rotatably connected, and the cushion cloth and backrest cloth are detachable, so that the bleacher can be folded to be stored.

An armrest may comprise a first casing and a second casing coupled to the first casing. An angular armrest adjustment assembly may be located between the first casing and the second casing. The angular armrest adjustment assembly may comprise a hub coupled the first casing, a lever ring configured to engage a splined surface of the hub, and a biasing member configured to bias the second casing away from the lever ring.

A rotating work surface system for a chair including a seat base having a top engaging surface, a seat support having top side and a bottom side and a rotating surface positioned in between the seat base and the seat support. The rotating surface includes a top side and a bottom side wherein the rotating surface is adapted to pivotally engage about an axis and a fixed position of the seat base and the seat support.

A folding chair includes front and rear supports that fold and/or retract into central beams to reduce the space occupied by the chair in a folded configuration. A backrest is coupled to the central beams with a hub that allows an angle of the backrest relative to the central beams to be selected and for the backrest to be folded flat relative to the central beams. One or more actuators and pin actuators may control the relative movements of the backrest, front support, rear support, and central beams.

A medical chair with height adjustable armrest comprises a lifting mechanism, a base coupled to a bottom side of the lifting mechanism, a sitting part coupled to an upper side of the lifting mechanism, and a backrest part coupled rotatably to the upper side of the lifting mechanism. An armrest comprises an armrest stop with the armrest rotatably coupled to the backrest part adjustable to an upper position and a bottom position, where, in the bottom position, the armrest stop bears on the first stop coupled to the backrest part, and in the upper position, the armrest stop does not bear on the first stop. A latch system movably attached to the backrest part comprises a latch with back surface and a second stop where the latch system is adjustable into a first position of the latch mechanism and into a second position of the latch system where in the first position of the latch system, the latch is located between the first stop and the armrest stop and in the second position of the latch system, the latch is not located between the first stop and the armrest stop, and where an upper position of the armrest is a position where the armrest stop bears on the second stop or any other position where the armrest is higher than in case when the armrest stop bears on the second stop.