Abstract: Furniture and a chair include a shielding piece (7b5) which is provided in an operation plate (7b2) or a flange (7a5) and closes a gap generated by the operation plate (7b2) and the flange (7a5) when the operation plate (7b2) has an operation posture. In addition, a chair includes a load support member for a chair, the load support member for a chair includes a frame member which includes a pair of rod members (19) and an extension material (22) which is formed in a bag shape and covers the frame member, a support portion (26) is provided on each of inner surfaces facing each other in the pair of rod members (19), and an interior material (21) having a repulsive force with respect to a load in a surface perpendicular direction is bridged between the pair of rod members (19) by being supported by the support portion (26).

Abstract: Furniture and a chair include a shielding piece (7b5) which is provided in an operation plate (7b2) or a flange (7a5) and closes a gap generated by the operation plate (7b2) and the flange (7a5) when the operation plate (7b2) has an operation posture. In addition, a chair includes a load support member for a chair, the load support member for a chair includes a frame member which includes a pair of rod members (19) and an extension material (22) which is formed in a bag shape and covers the frame member, a support portion (26) is provided on each of inner surfaces facing each other in the pair of rod members (19), and an interior material (21) having a repulsive force with respect to a load in a surface perpendicular direction is bridged between the pair of rod members (19) by being supported by the support portion (26).

Abstract: A backrest for a chair, including a bag-like upholstery material, with which a back frame is upholstered by fitting the bag-like upholstery material onto the back frame that has a pair of right and left side frames extending in an up-down direction. A low-friction member is disposed on at least one of an inner surface of both side portions of the upholstery material and an outer surface of the right and left side frames contacting the inner surface of the side portions of the upholstery material, the low-friction member being configured to reduce a sliding resistance in an area of contact between the upholstery material and the side frames.

Abstract: A backrest for a chair, including a bag-like upholstery material, with which a back frame is upholstered by fitting the bag-like upholstery material onto the back frame that has a pair of right and left side frames extending in an up-down direction. A low-friction member is disposed on at least one of an inner surface of both side portions of the upholstery material and an outer surface of the right and left side frames contacting the inner surface of the side portions of the upholstery material, the low-friction member being configured to reduce a sliding resistance in an area of contact between the upholstery material and the side frames.

Abstract: A backrest for a chair, including a bag-like upholstery material, with which a back frame is upholstered by fitting the bag-like upholstery material onto the back frame that has a pair of right and left side frames extending in an up-down direction.