A seating arrangement includes a base, a seat assembly operably coupled to the base, and a back assembly that includes a substantially rigid back frame including a pair of side portions spaced from one another and extending upward from the base, and a substantially flexible back shell including a front surface and a rear surface opposite the front surface, a plurality of laterally-extending slots that extend between the front surface and the rear surface and that cooperate to define a plurality of laterally-extending ribs therebetween, where a pair of laterally-extending ribs of the plurality of laterally-extending ribs are connected to one another via a vertically-extending rib located at a substantial midpoint across a width of the back shell, and wherein the back shell is coupled to each of the side portions of the back frame at locations above the plurality of laterally-extending slots.

An apparatus that supports a person in a variety of positions so that a tattoo artist can comfortably apply a tattoo to the skin of the supported person is herein disclosed. The apparatus can be articulated to cause a person's legs and arms to be optimally positioned and supported to receive a tattoo.

A chair assembly includes a four-bar arrangement that includes a lower end and an upper end where the upper end is adjustable between a raised position and a lowered position, and an arm rest assembly adapted to support the arm of a seated user thereon and supported on an upper end of the four-bar arrangement, wherein the lower end of the four-bar arrangement is pivotably supported from an arm support structure for pivotable movement about an arm pivot axis, such that the upper end of the four-bar arrangement is movable between a first position and second position located laterally outward from the first position, and wherein the arm pivot axis is angularly offset from a vertical axis.

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.

A chair assembly includes an arm assembly that includes an armrest supported by a vertically adjustable support assembly and an arm base, where the arm base extends at an acute angle with respect to a longitudinal centerline of the chair assembly, an upholstery arrangement including a ring member attached to a cover, where the ring member includes a plurality of reliefs having a width that reduces as the ring member is wrapped about a shell member of the chair assembly, and a control arrangement having a biasing member that moves through an arcuate path as the biasing member is adjusted between varying bias settings.

A seating arrangement includes a seat assembly, a control assembly, a back assembly, and a quick-connection arrangement to connect the back assembly to the control assembly, where the back assembly includes first and second reliefs and the control assembly includes first and second shafts received within the first and second reliefs respectively, and a locking arrangement that includes a primary locking member pivotable between a locked position, where the primary locking member abuts the second shaft arrangement, thereby preventing the second shaft arrangement from being removed from within the second relief, and an unlocked position, where the second shaft arrangement may be removed from within the second relief, thereby allowing the back assembly to be uncoupled from the control assembly.

A rotation adjuster of an armrest is connected on a bottom of a supporting extension, a rotatable fixer connected on a holding tray, and a U-shaped plate having a circular groove, a slidable seat, a support post, two slidable engagement structures, and multiple arcuate notches. The holding tray includes a body and multiple spaced recesses. The rotatable fixer includes multiple columns, a circular protrusion, multiple receiving orifices configured to accommodate multiple springs, multiple balls and the multiple pushing elements respectively, and a connection orifice. The U-shaped plate includes the circular groove, a first rib, a threaded orifice, and two locking pegs. The slidable seat includes a U-shaped frame, a covering sheet, a first slot, and two second slots. Each slidable engagement structure includes multiple arcuate notches and a flexible projection received in a trench. A screw is inserted through the connection orifice of the rotatable fixer.

A lounge chair includes a frame including an upper body section, and a lower body section, a support section and support material. The upper body section is operatively coupled to the lower body section to pivot between a plurality of angular positions. The upper body section includes an aperture extending through the support material to receive the face of an individual when lying in a supine position. The lower body section is operatively coupled to the support section with an anterior tilt. The lounge chair includes armrests which pivot incrementally between a plurality of angular positions in a direction transverse, parallel or both transverse and parallel to a plane of a side member of the lower body section.

A rotation adjuster of an armrest is connected on a bottom of a supporting extension, a rotatable fixer connected on a holding tray, and a U-shaped plate having a circular groove, a slidable seat, a support post, two slidable engagement structures, and multiple arcuate notches. The holding tray includes a body and multiple spaced recesses. The rotatable fixer includes multiple columns, a circular protrusion, multiple receiving orifices configured to accommodate multiple springs, multiple balls and the multiple pushing elements respectively, and a connection orifice. The U-shaped plate includes the circular groove, a first rib, a threaded orifice, and two locking pegs. The slidable seat includes a U-shaped frame, a covering sheet, a first slot, and two second slots. Each slidable engagement structure includes multiple arcuate notches and a flexible projection received in a trench. A screw is inserted through the connection orifice of the rotatable fixer.

A backrest portion supported, such as to be pivotable around an axis extending along its width direction center line, by a base, a left arm holding portion projecting forward from a left side portion of the backrest portion and supported, such as to be pivotable up and down around its base end portion, by the backrest portion, a right arm holding portion projecting forward from a right side portion of the backrest portion and supported, such as to be pivotable up and down around its base end portion, by the backrest portion, a left leg holding portion extending downward from a vicinity of a left side portion of a front edge of a seat portion at a front side of the base and supported, such as to be pivotable up and down around its upper end portion, by the base, and a right leg holding portion extending downward from a vicinity of a right side portion of the front edge of the seat portion at the front side of the base and supported, such as to be pivotable up and down around its upper end portion, by the base are included.