A chair includes a seat surface and a laterally pivotable backrest. The backrest is secured to two joints, which have mutually parallel axes of rotation.

A vehicle seat includes a movable portion, a first spring, a second spring, and a preloading device. The first spring is capable of exerting an elastic force to displace the movable portion, which is displaced in a first direction, toward the neutral position. The second spring is capable of exerting an elastic force to displace the movable portion, which is displaced in a second direction, toward the neutral position. The preloading device is capable varying at least one of an elastic force applied by the first spring to the movable portion placed in the neutral position or an elastic force applied by the second spring to the movable portion placed in the neutral position.

A chair comprising a seat base, a back rest, the back rest having a first arm connected to the seat base by a first pivot and a second arm connected to the seat base by a second pivot so that the back rest can pivot between a first folded position and a second position, the first pivot being biased so that in the absence of any force applied by a user, the back rest maintains the first position wherein a damper is included to ensure to retard the movement of the seat from the second position to the first position in the absence of any force applied.

The invention relates to a chair, in particular an office chair, comprising a seat surface and a laterally pivotable backrest, wherein the backrest is secured to two joints, which have mutually parallel axes of rotation.

A vehicle seat includes a movable portion, a first spring, a second spring, and a preloading device. The first spring is capable of exerting an elastic force to displace the movable portion, which is displaced in a first direction, toward the neutral position. The second spring is capable of exerting an elastic force to displace the movable portion, which is displaced in a second direction, toward the neutral position. The preloading device is capable varying at least one of an elastic force applied by the first spring to the movable portion placed in the neutral position or an elastic force applied by the second spring to the movable portion placed in the neutral position.

A stowaway compact rocker having a set-up condition and a collapsed and bundled condition comprises a stationary chair frame base; a movable seating chair frame adapted for rocking movement relative to the stationary chair frame base; and a rocker mechanism operatively connected between the stationary chair frame base and the movable seating chair frame. The stationary chair frame base comprises a central axle tube; a pair of leg plates disposed on the central axle tube; front leg tubes; and rear legs tubes, each leg tube being adapted for connection to a leg plate. The movable seating chair frame comprises a pair of seat tube plates mounted on the central axle tube for rotation thereabout; seat member tubes, each being adapted for connection to a respective one of the seat tube plates; and back-rest tubes, each being adapted for connection to a respective one of the seat tube plates.

In one or more embodiments, a dining chair is provided having a frame, a seat operably connected to the frame, a backrest operably connected to the frame, a reclining mechanism, and a counterbalance assembly positioned within the backrest, among other components. The backrest is configured to move between an upright position and a reclined position. In one or more arrangements, the counterbalance assembly is configured to provide a counterbalance force to move the backrest to the upright position in absence of an opposing force.

A stowaway compact rocker having a set-up condition and a collapsed and bundled condition comprises a stationary chair frame base; a movable seating chair frame adapted for rocking movement relative to the stationary chair frame base; and a rocker mechanism operatively connected between the stationary chair frame base and the movable seating chair frame. The stationary chair frame base comprises a central axle tube; a pair of leg plates disposed on the central axle tube; front leg tubes; and rear legs tubes, each leg tube being adapted for connection to a leg plate. The movable seating chair frame comprises a pair of seat tube plates mounted on the central axle tube for rotation thereabout; seat member tubes, each being adapted for connection to a respective one of the seat tube plates; and back-rest tubes, each being adapted for connection to a respective one of the seat tube plates.

A tiltable chair includes a flexible seat body including an integrally formed seat back and seat surface supported on a seat frame disposed on upper parts of legs, and the seat back connected to a back frame allowing tilting rearwards, the position of the connection being in an area around the upper part of the pelvis of a person seated thereon. A guide rail having an arc-shaped groove is fixed to the seat frame, and guide members which engage and roll in the arc-shaped grooves are pivotably supported on a shaft bracket of the rear surface of the seat surface. The arc-shaped groove has a high center so that the seat surface undergoes curved motion forward and upward such that the ischium is positioned lower than the lower part of the knees when the seat back tilts rearwards.

In one or more embodiments, a dining chair is provided having a frame, a seat operably connected to the frame, a backrest operably connected to the frame, a reclining mechanism, and a counterbalance assembly positioned within the backrest, among other components. The backrest is configured to move between an upright position and a reclined position. In one or more arrangements, the counterbalance assembly is configured to provide a counterbalance force to move the backrest to the upright position in absence of an opposing force.