A reconfigurable apparatus for sitting and having a seat mounted on a frame and movable under the weight of a sitting user. As an incident of the user sitting, resistance to movement of a back rest component is increased a predetermined amount based upon the user's weight. A manually operable subassembly allows the increased resistance to be changed from the predetermined amount with the user sitting on the seat.

A compact recliner mechanism for use in theater seating units is provided that allows the seat to move linearly as the seating unit moves from the closed position to the reclined position. The mechanism has a back bracket coupled to the seat plate and base plate with a linkage that moves a projected point representing the top of the back of the seating unit downwardly in vertical plane as the seating unit moves from the closed position to the reclined position. In other aspects, the seating unit has an armrest linkage coupled between the seat plate and the back that maintains an armrest lever at a horizontal orientation. Additionally, in some aspects, the base plate of the seating unit may have an adjustment feature that limits recline of the seating unit, to accommodate theater seating with different riser dimensions, and/or legs with an adjustment feature to level the seating unit on existing theater floors.

An oscillation mechanism for a seat or a backrest of a chair or of an armchair is provided. The oscillation mechanism has a seat coupling, a backrest coupling, and a functional body made in a single piece of plastic material and consisting of a flexible unit portion, the functional body being elastically deformable by bending for the oscillation of the seat and of the backrest.

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 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 headrest device and a chair having the same are provided. The headrest device includes a support frame, a headrest component and a reset member. The support frame is pivotally connected with the headrest component, and the reset member is connected with the headrest component and configured to drive the headrest component to rotate relative to the support frame. The support frame is provided with a limiting convex block, and the limiting convex block can stop a rotation of the headrest component when the headrest component moves to an initial limiting position.

An ergonomic chair includes a support body having a seat support portion and a back support portion. A forward sloping seat track is positioned on the seat support portion. A first seat portion engages the seat track on the seat support portion for forward and rearward movement along the seat track between a forward position and a rearward position. A second seat portion is provided having an upwardly extending back rest. The second seat portion is pivotally connected to the first seat portion. Movement of the first seat portion forward along the seat track toward the forward position draws the second seat portion forward with forward movement of the second seat portion causing movement of the back rest downwardly. This allows for subtle movement forward and backward movement that energizes major leg muscles.

A furniture member includes a base assembly, a frame assembly, a legrest mechanism, a support rod, and a sync mechanism. The frame assembly is movable relative to the base assembly among an upright position, a partially reclined position, and a fully reclined position. The legrest mechanism is movable relative to the frame assembly between a retracted position and a fully extended position. The support rod is supported by the frame assembly. The sync mechanism is coupled to and supported by the support rod. The sync mechanism is configured to prevent the frame assembly from moving from the upright position to the partially reclined position until the legrest mechanism reaches the fully extended position.

A chair system including a main unit and an untethered chair is provided. The main unit includes a wireless transmitter, a subwoofer, an audio stream receiver and a processor. The untethered chair includes a plurality of speakers, a power source and a wireless receiver for receiving a processed audio stream from the main unit.

A seat tilting mechanism comprising a main body, a seat support, a backrest support and an articulation mechanism comprising a lever, a first portion of which defines along with a first arm, the seat support and the main body a first quadrilateral hinge, and a second portion of which defines alone with a second arm, the backrest support and the main body a second quadrilateral hinge. Interior corner angles and lengths of each side of the first and second quadrilateral hinges are such that a predetermined angular displacement ratio of the backrest support in relation to the seat support is provided. An extension resistance device is mounted between the main body and the first portion to provide resistance to rotation of the lever. A first end of the extension resistance device is rotationally mounted to the lever at a first mounting point, which is located between the midpoint and upper point, and is angularly displaced from a line extending between the midpoint and the upper point.