A seating arrangement includes a rigid back frame, a flexible back shell coupled to the back frame and including a pair of vertical side portions and at least two strap portions extending laterally between the side portions and including a forwardly-facing surface configured to support a back of a seated user, the at least two strap portions including a lowermost strap portion, the lowermost strap portion configured to deflect a first distance when a rearwardly-directed force is exerted on the lowermost strap portion by a seated user, and a lumbar assembly supported from the back frame and configured to support the lumbar region of a back of a seated user, the lumbar assembly configured to deflect a second distance when the rearwardly-directed force is exerted on the lumbar assembly by a seated user, wherein the first distance and the second distance are substantially similar.

A locking device for an armrest pole. The locking device comprises a housing element configured for slidably accommodating the armrest pole. A locking handle comprises an abutment end, the locking handle is rotatably connected to the housing element and configured for rotation between a locked position where the armrest pole is fixed in the locking device and an unlocked position where the armrest pole is slidable in the locking device. The locking device also comprises a wedge element comprising a wedge and an abutment portion, the abutment portion configured for being directly or indirectly biased by the abutment end, the wedge configured and arranged for at least partly insertion between a portion of the armrest pole and at least a portion of the housing element in the locked position.

An easily assembled chair armrest is revealed. The easily assembled chair armrest includes an armrest support, an armrest pad body, and at least one fastening member arranged between the armrest support and the armrest pad body. The fastening member includes at least one first fastening portion and at least one second fastening portion which are aligned and pressed vertically to fit and connect with each other. One of the first fastening portion and the second fastening portion is disposed on a top support surface of the armrest support while the other is arranged at a first mounting space of the armrest pad body. While being assembled to form the chair armrest, the armrest support is connected with the armrest pad body to form one part by vertical fastening of the first fastening portion and the second fastening portion of the fastening member. Thus manufacturing cost is reduced relatively.

A seating arrangement includes a back frame that includes a top portion, a bottom portion, and a pair of side portions that cooperate to define an opening, wherein at least one of the top portion, the bottom portion and the side portions include a longitudinally extending channel, a back shell having a forwardly facing support surface located within the opening and configured to support a seated user, and an attachment portion that extends about at least a portion of a periphery the support surface, and a cover member extending over the support surface, wherein the cover member is directly attached to the attachment portion of the back shell at an attachment location, and wherein the attachment location and the attachment portion of the back shell are located within the channel and concealed from view.

A chair assembly includes a base assembly, a seat assembly having a pair of side edges and a fore-to-aft extending longitudinal centerline, a back assembly movable between upright and reclined positions, and an arm assembly including an arm base extending from a first location between the side edges to a second location laterally outward of one of the side edges, wherein the arm base extends at an acute angle with respect to the longitudinal centerline and at an upward angle from the first location toward the second location, a support assembly supported by and extending upwardly from the arm base, and an armrest supported by the support assembly that is adjustable to support the armrest between a plurality of selected vertical positions, wherein the arm assembly and back assembly move at a different rate from one another as the back assembly is moved between the upright and reclined positions.

The present invention relates to a chair for supporting a person feeding a baby. The chair includes a seat. The chair includes an armrest operatively connected to the seat. The armrest is selectively rotatable about a vertical axis, and moveable forward/rearward, laterally inward/outward and vertically relative to the seat. The armrest is shaped to receive a baby thereon.

A quickly released and fastened adjustment mechanism including a gasket, a first ratchet, a second ratchet, a T-shaped sleeve and a fastener is installed between a sliding member and a fixing member. The first and second ratchets are arranged with annular teeth respectively while the two annular teeth are engaged. The T-shaped sleeve is mounted in the first and second ratchets and against the gasket. The fastener is passed through the T-shaped sleeve, the gasket and the sliding member to be secured on the fixing member. Thus the two corresponding annular teeth are engaged firmly. The height difference between low-level and high-level engagement of the two annular teeth is H.sub.f. The sleeved height of the T-shaped sleeve is D.sub.1. The total height of the first and second ratchets in the low-level engagement is D.sub.2. D.sub.1>D.sub.2. D.sub.1−D.sub.2=G>0 and H.sub.f>G>0.

A chair armrest which includes an armrest body, a first component, a second component, and a mounting seat is revealed. The armrest body consists of an armrest cover, an armrest base and a rectangular space formed therein. The first component is mounted in the rectangular space of the armrest body and arranged at a first sliding slot of the armrest base while the second component is mounted in the rectangular space of the armrest body and disposed on the first component. The mounting seat is for loading the armrest body. The armrest body can be moved relative to the first component, the second component, the mounting seat and the protruding axis in the lengthwise direction by the first sliding slot for position adjustment. Thereby the chair arrest can be rotated or moved in the lengthwise/widthwise direction for adjustment under the condition that the overall thickness thereof is effectively reduced.

An armrest adjuster includes a slider, a fixing member moveably mounted into a concave space of the slider, and a button is revealed. Two pins set on a bottom surface of the fixing member are moveably mounted in two long grooves on a bottom surface of the slider respectively. Each pin is set with a through hole for being fastened on a top of a vertical support of an armrest. The button exposed is clipped between the slider and the fixing member. The button is disposed with a rack while another rack corresponding to the rack of the button is arranged at the fixing member. The rack of the button is separated from the rack of the fixing member when the button is pressed. Thus the slider is moved horizontally relative to the fixing member. The design is beneficial to the assembly process, modularization and mass production.

An office chair has an armrest. In order to provide an armrest which is of particularly simple construction, the armrest contains an armrest column and an arm support which is mounted on the armrest column and is rotatable about a rotation axis and which is linearly displaceable relative to the armrest column. A rotary mechanism for the rotation of the arm support is arranged substantially fully within the armrest column.