3755results 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 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.

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.

An adjustment mechanism for armrests includes an armrest plane and a lower plate fastened under the armrest plane. A removable block with smaller length is disposed inside the lower plate. Elastic locating rings are disposed on right and left sides of the removable lock, corresponding to linear locating slot composed of a plurality of curved slots on right and left sides of an inner part of the lower plate. Thus the removable block and the lower plate are moving or located relative to each other. A rectangular slot with a rectangular piece whose width is smaller than that of the rectangular slot is mounted on the removable block. And curved slots for location is arranged on side of the rectangular piece so that the rectangular piece and the rectangular slot move transversely and being located, relative to each other. Moreover, a round slot with a disc therein is arranged on the rectangular piece while a plurality of locating slots is mounted on circumference of the disc so that the rectangular piece and the disc rotate and locate relative to each other. By a fastening member inserting through the disc, the rectangular piece, and the transverse slot on bottom of the removable block, the disc is secured on a fastening seat that is secured on the armrest support. Thereby the armrest has adjustable rotation angle, longitudinal displacement and transverse displacement, relative to the armrest support.

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.

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.