A backrest portion supported, such as to be pivotable around an axis extending along its width direction center line, by a base, a left arm holding portion projecting forward from a left side portion of the backrest portion and supported, such as to be pivotable up and down around its base end portion, by the backrest portion, a right arm holding portion projecting forward from a right side portion of the backrest portion and supported, such as to be pivotable up and down around its base end portion, by the backrest portion, a left leg holding portion extending downward from a vicinity of a left side portion of a front edge of a seat portion at a front side of the base and supported, such as to be pivotable up and down around its upper end portion, by the base, and a right leg holding portion extending downward from a vicinity of a right side portion of the front edge of the seat portion at the front side of the base and supported, such as to be pivotable up and down around its upper end portion, by the base are included.

A height adjustment structure for an armrest contains: an accommodation sleeve for accommodating a fixer and a slider, a cap connected with a support arm, a pedestal, and a pull member. The pull member includes an extension extending out of a first window of the accommodation sleeve so as to pull an engagement protrusion to horizontally remove from or engage into one of multiple recesses of the fixer. The fixer includes a groove and two closed slots. The slider includes an extending lid, a second window, two tabs, a cutout, an elongated orifice, and an abutting protrusion. The pull member includes a receiving orifice, a spring, and a tilted orifice. The engagement protrusion abuts against the cutout and inserts into the one recess, and the engagement protrusion includes a column extending from a side thereof and inserted into the elongated orifice via the tilted orifice.

An angular position adjusting device includes a coupling column coupled with a chair body. The coupling column includes a top end having a lower coupling face with a receiving groove, a pivotal groove, and at least one restraining groove. The pivotal groove includes a bottom wall having a coupling hole. A positioning block is mounted in the receiving groove and includes a resilient portion having a positioning member. A seat includes a lower end having an upper coupling face with an axle received in the pivotal groove. A fastener extends through the axle and is coupled with the coupling hole of the coupling column. The positioning member is selectively and releasably engaged in one of angularly spaced positioning grooves of the upper coupling face. At least one restraining member is disposed on the upper coupling face and is slidably received in the at least one restraining groove.

A portable frame apparatus and associated methods of use are disclosed. The apparatus includes a frame. The frame includes a first support member, a second support member, and at least one connecting member. The connecting member is configured to be coupled to the first support member at a first end of the connecting member and to the second support member at a second end of the connecting member. The first support member, the second support member and the connecting member form a rigid structure that provides support to a user of the portable frame apparatus.

An office seat is disclosed. The office seat includes a seat body; an adjustment mechanism for adjusting a sitting posture of a user by adjusting a state of the seat body, and the adjustment mechanism being provided on the seat body; an image capture device for detecting the contour of the user's body; a controller, the controller being connected to the adjustment mechanism and the image capture device, respectively, and controlling the adjustment mechanism to adjust the seat body according to the detection result of the image capture device. In certain embodiments the office seat may be able to adjust the user's sitting posture, protect the user's physical health, be comfortable in use.

The present application relates to a chair which adapts to dynamic body postures of a user. The posture adaptive work chair includes a seat sub-assembly having a front edge and a seat base sub-assembly; a pair of spine members cantilevered from the font edge of the seat sub-assembly; a back sub-assembly supported by the pair of spine members, and configured to flex in multiple axes based on a direction of load applied by a user; and a tilt limit lever movably coupled to the seat base sub-assembly and configured to enable tilting of the back-sub assembly to a plurality of tilt positions.

An angular position adjusting device includes a coupling column coupled with a chair body. The coupling column includes a top end having a lower coupling face with a receiving groove, a pivotal groove, and at least one restraining groove. The pivotal groove includes a bottom wall having a coupling hole. A positioning block is mounted in the receiving groove and includes a resilient portion having a positioning member. A seat includes a lower end having an upper coupling face with an axle received in the pivotal groove. A fastener extends through the axle and is coupled with the coupling hole of the coupling column. The positioning member is selectively and releasably engaged in one of angularly spaced positioning grooves of the upper coupling face. At least one restraining member is disposed on the upper coupling face and is slidably received in the at least one restraining groove.

Hinge fitting for swivelable elements like for example arm rests, head portions of furniture for sitting or lying, and the like, comprising a swivel element which has a bore for receiving a hinge pin, and a holding element with a circular recess, in which a clamping disc on the hinge pin is rotatably arranged, wherein the clamping disc allows a rotational movement in a rotation direction relative to the holding element and blocks a rotational movement in the opposite direction, and wherein on the side of the swivel element there is provided at least a spring element, which presses the swivel element in axial direction of the hinge pin against the clamping disc.

The present invention relates generally to furniture, and more particularly to a chair, particularly a lounger chair, wherein at least one side arm portion of the chair is provided with a lower fixed arm segment, and an upper slidably movable arm segment. A storage receptacle for holding various devices, such as, for example, a book, magazine, remote control devices, a wireless charging pad, a dock, is fixedly secured within the lower fixed arm segment. Alternatively, the storage receptacle can comprise at least one cup holder for holding a beverage. The upper slidably movable arm segment is fixably mounted upon a slidable rail member, and a motorized mechanism is operatively connected to the slidable rail member for moving the slidable rail member and the upper arm segment fixedly secured thereto between a first forward position at which the upper arm segment is CLOSED so as to cover the storage receptacle or cup holder such that, for example, the storage receptacle or at least one cup holder is hidden from view, and a second rearward position at which the upper arm segment is OPEN so as to uncover the storage receptacle or cup holder such that access to the storage receptacle or at least one cup holder is permitted.

A pivot fitting for moveable furniture parts on pieces of furniture has a first lever and a second lever mounted so as to pivot relative to each other about a common pivot axis from a basic position through a predetermined angle in an adjusting direction and a resetting direction, a latching mechanism, with which the two levers can be latched at different angular positions within the predetermined angle relative to each other counter to a force acting in the resetting direction, the levers being pivotable in the resetting direction when the latching mechanism is deactivated. A force-transmission shaft of the adjusting mechanism is coupled to the second level in a rotationally fixed manner. The latching mechanism can be deactivated by pivoting the second lever relative to the first lever in the adjusting direction when an end position has been reached. A damping structural unit is arranged on the first lever to damp the pivot movement of the second lever relative to the first lever in the adjusting direction from a predetermined adjusting angle.