An arm rest apparatus, according to one embodiment, may comprise: a fixed part fixed to an external object; a horizontal movement module having one end rotatably connected to the fixed part and the other end having two-translational-degree-of-freedom movement with respect to the fixed part; and an arm support module installed to have two rotational degrees of freedom with respect to the other end of the horizontal movement module.

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.

A system may include a seat assembly. The seat assembly may include a seat base, a seat portion mounted to the seat base, and an armrest assembly configured to be in an up position or a down position. The armrest assembly may include a handle operable by a user to lock or unlock at least one functionality of at least one adjustable seat assembly feature. Operation of the handle may be configured at least to: unlock the at least one functionality of at least one adjustable seat assembly feature while locking the armrest assembly from moving between the up position and the down position.

Disclosed are foldable chair frames and foldable chairs. A foldable chair frame includes left and right side frames, each having a front leg, a backrest rod, a rear leg, and a seat rod. The backrest rod is integrally formed with the front leg and extended from the upper end of the front leg at an obtuse angle with respect to the front leg. The rear leg has an upper end configured to abut and support the front leg when the foldable chair frame is unfolded. The seat rod is pivotally connected to the front and rear legs. A foldable chair frame also includes front and rear supporting rods disposed between the left and right side frames at front and rear sides of the foldable chair frame. The front and rear supporting rods are pivotally connected to the left and right side frames.

A portable armrest is disclosed herein. The armrest comprises an outer shell. At least one core cushion block is disposed within the outer shell. At least one auxiliary cushion block disposed within the outer shell adjacent the at least one core cushion block. The portable armrest has a feature allows a user to vary an operational height of the armrest by either including or excluding one or more auxiliary cushion blocks to be disposed within the outer shell along with the core cushion block.

The element with variable shape (1) is composed of a cushion (10), having inside a fixed frame (20), which involves a lower section (13) of said cushion (10) and two symmetrical movable frames (25A), (25B), hinged above said fixed frame (20) and aimed at involving an upper section (14) of the cushion (10). The movable frames (25A), (25B) can rotate by 180° independently from each other, to direct a respective portion (14A), (14B) of said upper section (14) from an external horizontal configuration (HE) to an inner horizontal configuration (HI), passing through a vertical neutral configuration (N), in which the portion (14A), (14B) is substantially aligned with said lower section (13). The back (100) and sides (110) of a sofa (D) or armchair (P) are defined by respective elements (1), which can be configured in many ways so as to offer the maximum sitting comfort.

A shared armrest includes two armrest members which are each configured for supporting a person's arm. The shared armrest is configured so that at least one of the armrest members is displaceable between an undivided condition and a split condition. In the undivided condition the armrest members are substantially together. In the split condition the armrest members diverge relative to each other with respective distal ends of the armrest members spaced apart from each other.

A portable armrest divider is disclosed that is mounted on a vehicle armrest and expands the surface area of the original armrest, while providing a vertical separation barrier between the two individuals seated on either side of the armrest. The armrest is portable, in that it folds in half for easy travel.

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 armrest according to one embodiment of the present invention includes a case including a passage which guides a flow of air while the air is introduced and discharged and a through-hole which is formed via the passage to allow the air to be discharged outward, a fan located inside the case and by which the air is introduced and discharged through the passage, a heating element configured to supply heat to the air discharged by the fan and an outer surface of the case, and a supporter configured to support an external force applied to the case in at least two directions to keep a shape of the case.