A seating arrangement includes a seat arrangement that includes first, second, third and fourth link members coupled to one another, a back arrangement movable between an upright position and a reclined position and coupled to the seat arrangement such that the first link member moves between forward and rearward positions as the back arrangement is moved between the upright and reclined positions, and a stop arrangement including a stop link coupled to at least one of the first link member, the third link and the fourth link member such that the stop link moves with the associated link member as the back assembly moves between the upright and reclined positions, wherein travel of the stop link is limited with respect to the second link member thereby limiting a rearward movement of the back arrangement toward the reclined position.

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.

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.

Chairs, seating systems, chair sub-assemblies and sub-systems, and associated methods of assembly and use. Aspects relate to chairs and methods of assembling chairs including chair controls of a relatively compact and effective design with desirable synchronous raising and tilting motions. Aspects also relate to tilt lock assemblies for achieving secure and effective tilt securement. Additional aspects relate to forward and rearward adjustment, or extension and retraction, of a seating assembly of the chair.

Chairs, seating systems, chair sub-assemblies and sub-systems, and associated methods of assembly and use. Aspects relate to chairs and methods of assembling chairs including chair controls of a relatively compact and effective design with desirable synchronous raising and tilting motions. Aspects also relate to tilt lock assemblies for achieving secure and effective tilt securement. Additional aspects relate to forward and rearward adjustment, or extension and retraction, of a seating assembly of the chair.

A height adjustable seat post including a housing suitable to be inserted into a seat tube of a bicycle frame, and a quill including a head connectable to the rails of a bicycle saddle. The quill is slidably associated to the housing in order to be selectively translated from at least an upper position and a lower position, respectively corresponding to at least upper height saddle position and a lower height saddle position. The seat post includes at least a slot associated to the housing or to the quill, and at least a pin associated to the quill or to the housing; the pin is slidably engaged within the slot and it is selectively engageable into a first contour of the slot, corresponding to the upper position of the quill, and into a second contour of the slot, corresponding to the lower position of the quill.

A seating unit component assembly comprises a support component that includes a first surface adapted to abut a seated user, a second surface opposite the first surface, a first end surface, a second end surface opposite the first end surface, and a pair of side surfaces extending between the first and second end surfaces, and a cover having a plurality of sides that cooperate to form an interior space that receives the support component therein, wherein the cover includes a first portion comprising a non-fabric substantially flexible thermoplastic material covering at least a portion of at least one of the side surfaces of the support component, a second portion comprising a fabric covering at least a portion of the first surface and at least a portion of the first end surface of the support component, and a third portion comprising a substantially rigid overlay covering at least a portion of the second end surface and at least a portion of the second surface.

A seating unit component assembly comprises a support component that includes a first surface adapted to abut a seated user, a second surface opposite the first surface, a first end surface, a second end surface opposite the first end surface, and a pair of side surfaces extending between the first and second end surfaces, and a cover having a plurality of sides that cooperate to form an interior space that receives the support component therein, wherein the cover includes a first portion comprising a non-fabric substantially flexible thermoplastic material covering at least a portion of at least one of the side surfaces of the support component, a second portion comprising a fabric covering at least a portion of the first surface and at least a portion of the first end surface of the support component, and a third portion comprising a substantially rigid overlay covering at least a portion of the second end surface and at least a portion of the second surface.

A seating furniture chassis including a drive mechanism, a drive shaft, a gear mechanism and a lifting mechanism. The drive mechanism sets the drive shaft in rotation, while the lifting mechanism raises and lowers a seat face. The drive shaft is connected to the lifting mechanism via the gear mechanism. Rotation of the drive shaft in a first direction triggers raising of the seat face, while rotation of the drive shaft in a second direction triggers lowering of the seat face.

A seating furniture chassis including a drive mechanism, a drive shaft, a gear mechanism and a lifting mechanism. The drive mechanism sets the drive shaft in rotation, while the lifting mechanism raises and lowers a seat face. The drive shaft is connected to the lifting mechanism via the gear mechanism. Rotation of the drive shaft in a first direction triggers raising of the seat face, while rotation of the drive shaft in a second direction triggers lowering of the seat face.