3736results about "Reclining chairs" patented technology

A structure intends to arrange the appearance of furniture at a connecting portion between a first member having stiffness and a second member movable relative to the first member and having stiffness without forming the connecting portion in an unnaturally large diameter. More specifically, the present invention provides a structure for connecting members comprising: a first member having stiffness; a second member movable relative to the first member and having stiffness; and a spring member in which an end portion thereof is connected to the first member and other end portion thereof is connected to the second member so as to accumulate a reaction force by elastic deformation, wherein the spring member is formed into a frame-like shape extending along the first and second members.

A suspension seat assembly for an office chair is provided which has a support frame and a suspension fabric connected about its periphery to the frame. The fabric is first laid across the frame and then the peripheral edges of the suspension fabric are secured in place on the frame by over-molded trim. The suspension fabric may also be formed as a multi-layer composite comprising an aesthetic upper layer, a stretchable suspension layer and an optional cushion layer therebetween. The suspension layer is a fabric-type material which is preferably air permeable and resilient to support the weight of a chair occupant.

A back for a chair includes fabric panel with a flexible carrier attached to the panel around its periphery. The carrier is configured to be secured along a bottom edge to a bottom portion of a chair back frame member. The carrier is also secured to two vertical frame supports at its two upper corners. Preferably, the upper carrier and frame connections are ball and socket joints. A lumbar support is provided that is easily height adjustable, by providing tension to the back frame and requires no screws or adjustment knobs in its adjustment mechanism.

A chair includes a base having a control assembly operably supporting a seat assembly and also a back assembly for movement about a seat tilt axis and a back tilt axis, respectively. The back assembly includes a flexible sheet supported at upper / outer corners by a back support structure and hanging downwardly. The flexible sheet includes a lower portion coupled to the back support structure by a tensioner for holding the lower portion rearwardly. A vertically-adjustable lumbar mechanism is adjustably supported on the back support structure and operably engages the flexible sheet for flexing a lumbar area of the flexible sheet forwardly to provide an optimal ergonomic horizontal and vertical convex shape for postural lumbar support.

A fabric seat for a chair and a method and machine for manufacturing the fabric seat. The fabric seat comprises a seat frame that supports the outer circumference of a fabric material. The seat frame comprises grasping members that secure the fabric to the seat frame and retain the desired stretch in the fabric. The grasping members can be teeth. A cover is also provided, which is snapped onto the circumference of the seat frame, to trap the fabric and protect the user from the grasping members.

The invention relates to an adjustment armature comprising a fixed component (11) which is associated with part the seat and an adjustable component (12) which is connected to the backrest. The components of the armatures (11, 12) are joined to each other by means of an actuating member (13). An adjusting and locking device, having the form of a gear, is provided in order to adjust the relative positions of the two armature components (11,12). The adjusting member (13) comprises an eccentric segment (14), whereby one of the armature components (12) is mounted thereon. The other armature component (11) acts as a bearing for the eccentric segment (14). The eccentric segment (14) is comprised of wedge segments (27), which rest against each other and partially overlap a catch (20). Said eccentric segment is also provided with a catch segment (29) between the narrow sides thereof and an energy accumulator which moves the wide ends of, the wedge segments (27) apart. The actuating member (13) optionally comprises a central receiving section for a rotationally fixed connection to the transmission rod. The catch (20) is made up of a bushing (21), and a ring (26), which is rotationally fixed to said bushing and consists of a catch segment (29), whereby no free movement can be felt when the armature (10) is initially displaced for adjustment purposes. The catch ring (26) is mounted on the armature component (11) and acts as a bearing for the wedges (27) in a peripheral region of said ring, which does not contain said catch segment (29).

An automotive slouch rear seat with improved adjustability is provided including an upper seat back and a lower seat bottom. The upper seat back includes a fixed rear seat back, a pivotal seat back, and a sliding seat back. The pivotal seat back has an upper end and a lower end for connecting to the lower seat bottom. The sliding seat back is slidably engaged to the fixed rear seat back. The sliding seat back is rotatably engaged to the upper end of the pivotal seat back. The lower seat bottom includes a fixed rear seat bottom, and a sliding seat lower. The sliding seat lower is slidably engaged to the fixed rear seat bottom. The sliding seat lower is rotatably engaged to the lower end of the pivotal seat back. Also, an automotive slouch rear seat assembly and a method of assembling a pre-installation automotive slouch rear seat assembly are provided.

A task chair, including a backrest assembly and a seat assembly pivotally coupled both to one another and to side portions of a fixed yoke member for synchronized movement, in which the seat of the seat assembly moves upwardly and forwardly concurrently with recline of the backrest of the backrest assembly. The chair further includes a tension assembly including an elongate tension member, such as a leaf spring, secured at one end thereof to the yoke member, and a contact member, such as a contact roller, adjustably mounted to the seat assembly. The contact member engages the tension member such that the tension member resists recline of the backrest assembly and concurrent movement of the seat assembly from their initial positions, and also provides a restoring force which tends to move the backrest to its initial upright position and the seat to its initial rearward and lowered position. The contact member is adjustable with respect to the tension member in order to vary the effective moment arm acting upon the tension member, thereby varying the pre-load of the tension member and the resistance provided by the tension member.

A chair of the tilting type which includes a base, a seat and back, with the base pivotally supporting the seat with two parallel links of a four-bar parallel linkage, with one of the links extending to support the back. The four-bar linkage is duplicated on each side of the chair by forming the two opposite parallel links or cranks from the upturned ends of the tubes which pass through the base in parallel but vertically offset fashion, the base thus forming the fixed bar of the linkage with its opposite bar or coupler being formed by the seat. A spring within the base is operative on one (of both) of the tubes to urge the chair to an upright position. The tubes are pivotally connected to the seat and one of the tubes extends and is fixedly connected to the back. As the back tilts, the four-bar mechanism is engaged and lifts the seat which thereby uses the occupant's weight to counteract the reclining.Also disclosed is an adjustable armrest that can readily raised, or lowered, and optionally rotated in a horizontal plane.A further aspect of the present disclosure is a headrest that is pushed into place when the chair is reclined and retracted when the chair returns to an upright position.

A reclinable passenger seat having a seat frame mounting a seat bottom, a seat back extending upwardly from the seat bottom, and a seat bottom / seat back articulation assembly for simultaneously varying the adjustment of the seat bottom and seat back relative to each other. A translation linkage is provided for mounting the seat bottom and seat back for translating movement of the seat bottom relative to the seat back as the seat back is reclined from an upright position and raised to an upright position. The translation linkage extends the effective length of the seat bottom relative to the seat back to provide additional support to the buttocks and legs of the seated passenger.

A vertically adjustable armrest includes a tubular support constructed for attachment to a chair, an armrest assembly telescopingly positioned in the tubular support, the armrest assembly including a sleeve and a post, the sleeve including an opening adapted to receive an operative member on one side, and the post including positional detents extending down the length of a first vertical surface. The height adjustment mechanism is slidably received in the armrest assembly and includes an actuator rod having an angled ramp, an inclined surface, and a pair of angled surfaces, a locking member having teeth which are biased to selectively mate with the post detents, an inclined surface, and at least one pair of lateral followers. The actuator rod operatively engages the locking member with the inclined wedge mateably engaged with the inclined surface and the angled surfaces slideably engaged with the lateral followers.

A chair back is supported on a rigid upright coupled to a horizontal tilt shaft disposed under the front of the chair seat and supported on a control housing fixed to a pedestal. A tension mechanism urges the upright into an upright position. The chair seat is movably supported on the upright by an arrangement which permits the seat to pivot about a transverse horizontal axis positioned adjacent the upper surface of the seat. A control link is pivoted at one end to the control housing, and the other end has lost-motion pivotal connections to the seat frame and the upright. The lost-motion pivotal connection to the seat frame including a spring cooperating between the upright and the seat frame to allow the seat to move relative to the upright.

A vehicle seat assembly includes a seat bottom and a seat back connected to the seat bottom. A reclining mechanism is configured to adjustably position the seat back. A head restraint assembly includes a head restraint and one or more supports receiving the head restraint extending through one or more slots in an upper frame member of the seat back frame. A head restraint adjustment mechanism cooperates with the seat back to position the head restraint adjacent an occupant's head. The head restraint adjustment mechanism includes a guide rotatably mounted to the seat back frame receiving the one or more head restraint supports, a cam rotatably mounted to the seat back frame and a linkage having a first end connected to the guide and a second end adjustably connected to the cam.

An adjustable armrest includes an elevation device to allow adjustment of a height of the armrest, a first rocking device to allow adjustment of the armrest to the left or to the right, a movement controlling device to allow front and rear adjustment of the armrest and a second rocking device to allow movement of the armrest.

An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.

An adjustable chair (1) includes a control unit (2) having an on / off switch (24), an extending operation button (22), and a retracting operation button (23); a reciprocating unit (3) having a limit member (34), a screw-type slide (33) threadedly put on a lead screw (32) and adapted to move between the limit member (34) and a DC motor (31), and a linkage; and two foot, seat, and back adjustment units (4) disposed in the arms (12) respectively, each foot, seat, and back adjustment units (4) having a linkage so that pressing the extending operation button (22) will tilt a seat (14) and a back (13), and extend a foot rest (11).

An armrest structure includes a tubular support, and an armrest having a tubular end telescopingly engaging the tubular support. A support plate engages bottom walls of the tubular support and the tubular end in a laminar arrangement. A clamping bolt slides through a top hole and into aligned holes in the laminar arrangement, with its head abutting the aligned holes. A clamping handle on a bottom of the bolt is rotatable between a clamping position tensioning the bolt to secure the arrangement, and a release position de-tensioning the bolt. By this arrangement, remaining walls of the tubular support and the tubular end are not deformed even when the clamp is clampingly pressing the adjacent sidewall sections together. An adjustable back with actuator handles at a lower edge of the back, and a seat assembly with fingers that retain an upholstery cover tight against concave areas are also shown.