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. The apparatus includes a vertically movable armrest assembly. 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. The armrest assembly can be translated vertically to accommodate the user's body to achieve desired positioning.

A chair is described herein. The chair includes a first back support coupled to a base of the chair using one or more first support arms. The chair also inclues a second back support coupled to the base of the chair using one or more second support arms. The first and second back supports are independently rotatable.

A cushion and a nursing seat. The cushion comprises: a seat base (4031), and a through hole (4032) provided in a middle of the seat base (4031); a supporting structure (4033) disposed below the through hole (4032), and an accommodating space (4034) being formed between the supporting structure (4033) and the seat base (4031); and a collection box (8) detachably accommodated in the accommodating space (4034). The cushion is provided with the collection box (8) at the bottom, and may be used in the field of nursing. In addition, the collection box (8) and the cushion are detachably connected, thus facilitating handling and cleaning.

A functional sitting chair according to an embodiment of the present disclosure effectively distributes the user's body pressure even when the user sits for a long time, stably supports the user's waist and back, provides a heating function, and maintains great comfort by effectively circulating air through a pattern formed on the cushion.

A functional sitting chair according to an embodiment of the present disclosure effectively distributes the user's body pressure even when the user sits for a long time, stably supports the user's waist and back, provides a heating function, and maintains great comfort by effectively circulating air through a pattern formed on the cushion.

A connecting structure and a seat. The connection structure comprises a mounting hole structure and a mounting structure correspondingly disposed on two main members to be connected; a step structure extends downwards and inwards on one side of the mounting hole structure, and two sides of the step structure are provided with limiting clamping points protruding in a direction parallel to an extending direction of the step structure; the mounting structure is configured to be a column structure, a bottom end of the column structure is provided with a shovel-shaped structure extending in one side of the column structure, and two sides of the shovel-shaped structure are provided with everted protrusions.

A connecting structure and a seat. The connection structure comprises a mounting hole structure and a mounting structure correspondingly disposed on two main members to be connected; a step structure extends downwards and inwards on one side of the mounting hole structure, and two sides of the step structure are provided with limiting clamping points protruding in a direction parallel to an extending direction of the step structure; the mounting structure is configured to be a column structure, a bottom end of the column structure is provided with a shovel-shaped structure extending in one side of the column structure, and two sides of the shovel-shaped structure are provided with everted protrusions.

A chair is described herein. The chair includes a first back support coupled to a base of the chair using one or more first support arms. The chair also includes a second back support coupled to the base of the chair using one or more second support arms. The first and second back supports are independently rotatable.

A seat includes a pivotally movable bottom, a pivotally movable backrest independent from the bottom, a first supporter suspending and supporting a front side of the bottom, and a second supporter suspending a rear side of the bottom from a side behind the backrest section, and pivotally movably supporting the bottom together with the first supporter. According to the seat, the front side and the rear side of the bottom are suspended and supported. Thus, compared to a seat in which a front side of a bottom is supported in a cantilever manner, the seat is capable of ensuring bearing capacity for a seating load. The rear side of the bottom is suspended and supported from a side behind the backrest section. Accordingly, a support structure around the bottom including the front side of the bottom can be downsized.

A seat for vehicles includes: a seat back frame; and a pressure receiving member that is mounted on the seat back frame to support a back of an occupant. The seat back frame includes a lower seat back frame and an upper seat back frame mounted on an upper portion of the lower seat back frame in a forwardly and rearwardly swingable manner, and the pressure receiving member is disposed from an area corresponding to the shoulder of an occupant to an area corresponding to the waist of the occupant and is supported by the upper seat back frame.