A chair includes a base structure, a seat support structure, a back frame comprising a front surface, a rear surface and a forwardly extending bottom portion pivotably connected to the base, a biasing member biasing the back frame from a reclined position toward an upright position, wherein the biasing member is located entirely forward a rearward most edge of the seat support structure, and a back shell comprising a forwardly extending bottom portion connected to the seat support structure, a front surface, a rear surface positioned in front of the front surface of the back frame, a pair of laterally spaced side portions defining an opening therebetween, and a top portion extending laterally between and connected to the side portions, wherein each of the side portions are exclusively connected to the back frame at a first location.

A seat includes a seat surface having a periphery and a carrier overmolded onto the seat surface over the periphery. The carrier has a periphery and a frame is overmolded onto the carrier over the carrier periphery. The seat is assembled without fasteners. A method for making the seat includes overmolding a carrier onto a periphery of a seat surface to form a seat surface/carrier assembly, tensioning the seat surface/carrier assembly in a mold and overmolding a frame onto a periphery of the seat surface/carrier assembly.

A body support assembly includes a seat assembly and backrest assembly supported by tilt control assembly. Methods of using and assembling the body support assembly are provided.

A seat back for an office chair includes a knit material for extending over a structural frame. The knit material can be formed in a single knitting operation to include cushioning characteristics that vary across different regions of the knit material. The knit material may be a weft knit material having a first layer, a second layer, and a third layer, wherein the third layer is inlayed between the first and second layers and the inlay material is different from at least the first and second layers and provides a degree of cushioning between the first and second layers. The first and second layers are knit according to a predetermined pattern, the predetermined pattern determining crossing lines where the first and second layers cross one another and fix the third layer in position with respect to the first and second layers. The predetermined pattern is differentiated between regions of the back support, such that a first region of the back support has a higher density of crossing lines than a second region of the back support, the first region providing a different degree of cushioning than the second region.

A piece of furniture may include a structure having side walls and top walls adjoining the side walls. The piece of furniture may include a blade assembly to cover at least partially the structure, the blade assembly comprising: an envelope comprising a support portion and side panels, the support portion comprising a top layer, a bottom layer, and longitudinal sleeves extending between the top layer and the bottom from about a first one of the side panels to about a second one of the side panels, with the longitudinal sleeves being isolated from each other; and blades inserted in the longitudinal sleeves, wherein the side panels are mounted to the top layer, and wherein the side panels of the blade assembly are secured to the side walls of the structure with the side panels maintaining the bottom layer abutting the top walls.

A seat assembly includes a base and a support platform spaced above the base. The support platform includes a pad having a hinge portion defining a flex region, wherein the pad is pivotable about the flex region. A link has a lower portion coupled to the base and an upper portion coupled to the pad, wherein the upper portion is pivotable with the pad about the flex region.

A method of manufacturing suspension seating includes providing a blank to be used in a suspension member. The blank has a non-visible marker. The method also includes illuminating the non-visible marker with an excitation source. The non-visible marker becomes detectable when illuminated by the excitation source. The method further includes sensing the non-visible marker with a sensor. The sensor is configured to detect the non-visible marker when illuminated by the excitation source. The method also includes determining, by a controller, a characteristic of the blank using the non-visible marker. The controller is in communication with the sensor and configured to receive information related to the non-visible marker from the sensor. The method further includes adjusting the blank to achieve the desired characteristic.

A seating arrangement includes a back frame that includes a top portion, a bottom portion, and a pair of side portions that cooperate to define an opening, wherein at least one of the top portion, the bottom portion and the side portions include a longitudinally extending channel, a back shell having a forwardly facing support surface located within the opening and configured to support a seated user, and an attachment portion that extends about at least a portion of a periphery the support surface, and a cover member extending over the support surface, wherein the cover member is directly attached to the attachment portion of the back shell at an attachment location, and wherein the attachment location and the attachment portion of the back shell are located within the channel and concealed from view.

A chair assembly includes a base assembly, a seat assembly having a pair of side edges and a fore-to-aft extending longitudinal centerline, a back assembly movable between upright and reclined positions, and an arm assembly including an arm base extending from a first location between the side edges to a second location laterally outward of one of the side edges, wherein the arm base extends at an acute angle with respect to the longitudinal centerline and at an upward angle from the first location toward the second location, a support assembly supported by and extending upwardly from the arm base, and an armrest supported by the support assembly that is adjustable to support the armrest between a plurality of selected vertical positions, wherein the arm assembly and back assembly move at a different rate from one another as the back assembly is moved between the upright and reclined positions.

A chair back assembly includes a back shell member including laterally extending top, bottom and side portions cooperating to define an open space therebetween, where a portion of the back shell member is located in a lumbar region, a cover having a first surface and a second surface opposite the first surface, wherein the cover covers at least a portion of the open space, and a back frame assembly operably supporting the back shell member and movable between upright and reclined positions, wherein the back frame assembly causes the back shell to flex in a fore-to-aft direction as the back frame assembly is moved between the upright and reclined positions independent of an external force being exerted on the back shell member, and where the lumbar portion of the back shell member remains spaced from the back frame as the back frame is moved between the upright and reclined positions.