US 2026/0191339 A1 · HEIGHT ADJUSTMENT MECHANISM, SEAT ADJUSTMENT DEVICE, ROTATION ADJUSTMENT MECHANISM AND CHAIR

Abstract

A height adjustment mechanism, a seat adjustment device, a rotation adjustment mechanism and a chair are disclosed. The height adjustment mechanism is disposed between the bracket assembly including a base (5), and the seat assembly including a seat (1). The height adjustment mechanism includes a supporting base (27) integrated with the base or rotatably mounted on the base, and two adjustment members (21). The supporting base supports the seat through the two adjustment members. Lower ends of the two adjustment members are respectively pivotally connected to the supporting base through two first shafts (31), and upper ends of the two adjustment members are respectively movably connected to the seat to form two connecting points. The two adjustment members are rotatable respectively around corresponding first shafts to change positions of the two connecting points relative to the supporting base or the seat, so as to raise or lower the seat.

Claims21

Dependent claims

A height adjustment mechanism disposed between a bracket assembly including a base, and a seat assembly including a seat, the height adjustment mechanism comprising:

a supporting base integrated with the base or rotatably mounted on the base;
and
two adjustment members, wherein:
the supporting base supports the seat through the two adjustment members;
lower ends of the two adjustment members are respectively pivotally connected to the supporting base through two first shafts, and upper ends of the two adjustment members are respectively movably connected to the seat to form two connecting points;
and
the two adjustment members are rotatable respectively around corresponding first shafts to change positions of the two connecting points relative to the supporting base or the seat, so as to raise or lower the seat.

4 more elements

A seat adjustment device disposed between a bracket assembly and a seat assembly, the seat adjustment device comprising:

a first adjustment column connected to a seat of the seat assembly;
a second adjustment column connected to a base of the bracket assembly, and insertably cooperated with the first adjustment column;
and
a height adjustment mechanism disposed between the first adjustment column and the second adjustment column, and switchable between a locking state and an unlocking state,
wherein, when the height adjustment mechanism is in the locking state, the first adjustment column is fixed at a certain height position relative to the second adjustment column, and when the height adjustment mechanism is in the unlocking state, the first adjustment column is movable relative to the second adjusting column.

2 more elements

Dependencies are inferred from the claim text.

Height adjustment mechanism, seat adjustment device, rotation adjustment mechanism and chair

Life of this patent

Height adjustment mechanism, seat adjustment device, rotation adjustment mechanism and chair

Life of this patent

Abstract

Claims21