Abstract: The present invention discloses a chair reclining adjustment mechanism, including a chassis, a turntable rotatably connected to the chassis by using a rotation shaft, and an elastic resetting device that is disposed between the chassis and the turntable and is configured to always enable the turntable to have a moving trend of rotating towards one side of the rotation shaft, wherein a rotation gap is provided between the turntable and the chassis at the other side of the rotation shaft; the adjustment mechanism further includes a locking member capable of entering or slipping out of the rotation gap, a locking component that always enables the locking member to have a moving trend of entering the rotation gap and an unlocking component configured to pull the locking member to slip out of the rotation gap.

Abstract: The present invention provides a chair and a chair lifting adjustment control mechanism thereof. The chair lifting adjustment control mechanism comprises a base, an executing member slidably connected to the base for pressing a pushbutton of a telescoping member, and a cable-driven assembly with one end connected to the executing member to enable the executing member to produce a horizontal displacement. The cable-driven assembly comprises a dragline with one end connected to the executing member, and the executing member has a driving ramp for facing the pushbutton and pressing or relaxing the pushbutton during the horizontal displacement.

Abstract: The present invention discloses a chair reclining adjustment mechanism, including a chassis, a turntable rotatably connected to the chassis by using a rotation shaft, and an elastic resetting device that is disposed between the chassis and the turntable and is configured to always enable the turntable to have a moving trend of rotating towards one side of the rotation shaft, wherein a rotation gap is provided between the turntable and the chassis at the other side of the rotation shaft; the adjustment mechanism further includes a locking member capable of entering or slipping out of the rotation gap, a locking component that always enables the locking member to have a moving trend of entering the rotation gap and an unlocking component configured to pull the locking member to slip out of the rotation gap.

Abstract: The present invention provides a chair and a chair lifting adjustment control mechanism thereof. The chair lifting adjustment control mechanism comprises a base, an executing member slidably connected to the base for pressing a pushbutton of a telescoping member, and a drive-by-wire assembly with one end connected to the executing member to enable the executing member to produce a horizontal displacement. The drive-by-wire assembly comprises a dragline with one end connected to the executing member, and the executing member has a driving ramp for facing the pushbutton and pressing or relaxing the pushbutton during the horizontal displacement.

Abstract: The present disclosure relates to a chair tray and chassis, chassis forming method and chassis mounting structure of the same. The chair chassis comprises a chassis body that is arranged with a mounting hole thereon for mounting a regulating knob. The edge at the position corresponding to the mounting hole of the chassis body is arranged with a flange. The structural strength and the fatigue strength of the chassis can be enhanced effectively by arranging the flange at the position corresponding to the mounting hole of the chassis, which avoids the occurrence of fracture at the perimeter of the mounting hole of the chassis during use or test and thus enables the thickness of the chassis to be reduced below 3 mm, reducing production material to a very large extent and saving production cost while also ensuring that it can pass the back pad fatigue test in the BIFMA standard.

Abstract: The present invention discloses a chair tray and chassis, chassis forming method and chassis mounting structure of the same. The main points of its technical solution are that the chair chassis comprises a chassis body that is arranged with a mounting hole thereon for mounting a regulating knob. The edge at the position corresponding to the mounting hole of the chassis body is arranged with a flange. The structural strength and the fatigue strength of the chassis can be enhanced effectively by arranging the flange at the position corresponding to the mounting hole of the chassis, which avoids the occurrence of fracture at the perimeter of the mounting hole of the chassis during use or test and thus enables the thickness of the chassis to be reduced below 3 mm, reducing production material to a very large extent and saving production cost while also ensuring that it can pass the back pad fatigue test in the BIFMA standard.