A chair having a first frame portion with a backrest support and a rear leg portion at least part of the backrest support and the leg portion being formed from a single piece. A second frame portion has a seat support and a front leg portion extending in a direction transverse to the seat support, the seat support in a fixed position relative to the backrest support. The backrest support molded thereover in foam, the backrest support being substantially peripherally located around the foam of the backrest and the backrest being provided free from rigid supports extending across a middle portion of the backrest. The seat support molded thereover in foam, the seat support being substantially peripherally located around the foam of the seat and the seat being provided free from rigid supports extending across a middle portion of the seat.

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 chair is provided with a seat support frame which may be comprised of at least two tubes spaced apart by a polymer connector. The seat support frame supports a foam cushion and the frame may be embedded in the foam and may include flexible supports across the support frame also embedded in the foam. A rigid panel has a cavity and the rigid panel is arranged adjacent an outer surface of the foam cushion with at least part of the foam cushion positioned within the cavity, wherein the rigid panel is affixed to the support frame and an inner surface of the rigid panel faces the outer surface of the foam cushion.

The present invention provides means for improving bondability between a vehicle seat core and a cushion in a vehicle seat pad formed by integration of them without significantly impairing mechanical properties. A vehicle seat core is characterized in that it is a vehicle seat core for forming a vehicle seat pad by integration with a cushion, which comprises a foamed resin molded body obtained by filling a cavity of a mold with a plurality of foamed resin particles and performing in-mold foam molding, and that at least a partial region of a surface of the foamed resin molded body to which the cushion is bonded when forming the vehicle seat pad has a surface expansion rate of 40% to 85%, and the foamed resin molded body has a first fusion rate of 95% or more or a second fusion rate of 60% or more.

A chair component assembly includes a support component adapted to support a portion of a seated user, and a cover including a plurality of sides that cooperate to form an interior space that receives the support component therein, the cover further including a support component receiving aperture and a flap movable between an open position where the support component may be moved from an exterior of the cover to the interior space of the cover, and a closed position where the flap covers the support component receiving aperture, and wherein the flap is secured to the support component by a quick-connect fastener.

A seat back of a seat includes: a seat back frame; a front side elastic member positioned on a user side; a rear side elastic member disposed more rearward than the front side elastic member is; and a pressure receiving member disposed at a rear of the rear side elastic member. The rear side elastic member has a lower resilience than the front side elastic member. The pressure receiving member supports the front side elastic member and the rear side elastic member while being supported by the seat back frame.

A method for manufacturing a seat cushion material, the seat cushion material including a front layer part and a back layer part having a back side surface, the method including: preparing for molding the seat cushion by attaching the back layer part to an upper die having an upper cavity surface; molding the seat cushion material by adding foamed resin raw material forming on a lower cavity surface of a lower die and then by closing the upper die to which the back layer part is attached, the lower cavity surface being provided with a plurality of protrusions which is configured to be brought into contact with a seating surface side of the back layer part and press the back layer part against the upper cavity surface when the upper die to which the back layer part is attached is closed; and demolding the molded seat cushion material.

The present invention provides a seating device of a foldable chair. The seating device includes a backrest and a seating portion. The backrest includes a backrest rigid plate, a plurality of backrest rivets and a backrest cushion. A plurality of joining portions are formed at the rear end of each of the backrest rivets via a press molding process. The backrest cushion is disposed on the first side of the composite board. The plywood is mounted to the second side of the composite board by screws. The seating portion includes a seating portion rigid plate, a plurality of seating portion tapped holes and a seating portion cushion. The seating portion cushion is disposed on the first side of the seating portion rigid plate. The chair frame is mounted on the second side of the seating portion rigid plate by screws.

A chair having a first frame portion with a backrest support and a rear leg portion at least part of the backrest support and the leg portion being formed from a single piece. A second frame portion has a seat support and a front leg portion extending in a direction transverse to the seat support, the seat support in a fixed position relative to the backrest support. The backrest support molded thereover in foam, the backrest support being substantially peripherally located around the foam of the backrest and the backrest being provided free from rigid supports extending across a middle portion of the backrest. The seat support molded thereover in foam, the seat support being substantially peripherally located around the foam of the seat and the seat being provided free from rigid supports extending across a middle portion of the seat.

A bead foam molded member for a vehicle seat, the bead foam molded member being integrated in a layer shape on a side opposite to a seating surface of a resin foam molded body which is a cushion member of the vehicle seat, wherein the bead foam molded member has at least one bottomed substantially tubular lightening hole extending in a direction towards the seating surface from a surface on a side opposite to the seating surface, and a bottom surface portion of the at least one lightening hole on a seating surface side has a substantially hemispherical surface shape.