The invention relates to a chair, having a chair base (1), a seat part (5, 6, 7, 8) connected thereto, a backrest (9, 16, 17) connected thereto, the seat part (5, 6, 7, 8) pivotable about at least one horizontal or inclined horizontal axis and the backrest (9, 16, 17) are spatially adjustable. The seat part (5, 6, 7, 8) has at least three seat elements (5, 6, 7) that can be adjusted in relation to one another and whose operating positions can be adjusted individually.

The present disclosure relates to a chair back assembly with an outer frame and an inner frame, wherein the outer frame is manufactured of different material than the inner frame to allow for a variety in support throughout the chair back assembly, resulting in localized support throughout the back of the chair. The availability of localized support results in an improvement in comfort and may also improve production in embodiments utilizing a foam covering. Specifically, the inner frame of the chair back assembly may include at least one vertical member and at least one horizontal member to provide additional support to the user.

The present disclosure relates to a chair back assembly with an outer frame and an inner frame, wherein the outer frame is manufactured of different material than the inner frame to allow for a variety in support throughout the chair back assembly, resulting in localized support throughout the back of the chair. The availability of localized support results in an improvement in comfort and may also improve production in embodiments utilizing a foam covering. Specifically, the inner frame of the chair back assembly may include at least one vertical member and at least one horizontal member to provide additional support to the user.

A connection structure for a composite backrest and a method for making the same are provided. The connection structure includes two frames, a backrest body, and metal bushings. The metal bushings include a group of left metal bushings and a group of right metal bushings. The two frames are respectively fixed to the left side and the right side of the backrest body by the left metal bushings and the right metal bushings. The method includes: punching the backrest body and the frames; placing the frames into the backrest body; processing the metal bushings; sandblasting or sanding the external surface of the metal bushing; coating a configured structural adhesive on the metal bushing, and oppositely bonding the metal bushing; fixing the bonded metal bushing by a tool; and placing the fixed metal bushing, the composite backrest and the two frames into a drying oven for heating.

A connection structure for a composite backrest and a method for making the same are provided. The connection structure includes two frames, a backrest body, and metal bushings. The metal bushings include a group of left metal bushings and a group of right metal bushings. The two frames are respectively fixed to the left side and the right side of the backrest body by the left metal bushings and the right metal bushings. The method includes: punching the backrest body and the frames; placing the frames into the backrest body; processing the metal bushings; sandblasting or sanding the external surface of the metal bushing; coating a configured structural adhesive on the metal bushing, and oppositely bonding the metal bushing; fixing the bonded metal bushing by a tool; and placing the fixed metal bushing, the composite backrest and the two frames into a drying oven for heating.

A chair can include a base having at least one chair back attachment mechanisms that attach a back of the chair to the base of the chair. The chair back attachment mechanisms can be positioned on an upper portion of the frame of the base of the chair to support the chair back. In some embodiments, there may be a single chair back attachment mechanism or only a pair of chair back attachment mechanisms to attach the chair back to the base. The chair back can be positioned via the chair back attachment mechanisms so that there is a gap between the lower portion of the chair back and the seat. Embodiments of the chair can be armless. Other embodiments can include arms positioned above the seat on opposite sides of the seat to support arms of a user sitting on the seat of the chair.

A chair can include a base having at least one chair back attachment mechanisms that attach a back of the chair to the base of the chair. The chair back attachment mechanisms can be positioned on an upper portion of the frame of the base of the chair to support the chair back. In some embodiments, there may be a single chair back attachment mechanism or only a pair of chair back attachment mechanisms to attach the chair back to the base. The chair back can be positioned via the chair back attachment mechanisms so that there is a gap between the lower portion of the chair back and the seat. Embodiments of the chair can be armless. Other embodiments can include arms positioned above the seat on opposite sides of the seat to support arms of a user sitting on the seat of the chair.

A seating structure includes a frame, a carrier, and a suspension material. The frame includes first and second side frame members and first and second cross frame members forming a closed loop and defining an opening therebetween. The frame also includes a plurality of first attachment features on an outer perimeter of the frame. The carrier includes first and second side carrier members and first and second cross carrier members that form a closed loop. The carrier also includes a plurality of second attachment features on an inner perimeter of the carrier. The plurality of second attachment features engages the plurality of first attachment features to attach the carrier to the frame. The suspension material is attached to the carrier and extends over the opening in the frame to define a continuous seat and backrest.

A seating structure includes a frame, a carrier, and a suspension material. The frame includes first and second side frame members and first and second cross frame members forming a closed loop and defining an opening therebetween. The frame also includes a plurality of first attachment features on an outer perimeter of the frame. The carrier includes first and second side carrier members and first and second cross carrier members that form a closed loop. The carrier also includes a plurality of second attachment features on an inner perimeter of the carrier. The plurality of second attachment features engages the plurality of first attachment features to attach the carrier to the frame. The suspension material is attached to the carrier and extends over the opening in the frame to define a continuous seat and backrest.

A mesh frame includes a side frame, wherein the side frame includes a first face in contact with a human body during use, the first face being provided with a recess, the recess obliquely extending towards an inner side of the side frame and configured to snap a mesh to the mesh frame.