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US 10,945,529 B2Granted
Chair
AssigneeZhejiang Sunon Furniture Manufacture Co., Ltd.
InventorsRuarc O'Boyle, Peter Horn
Life of this patent
Estimating the term…
Abstract
A chair includes a seat surface and a laterally pivotable backrest. The backrest is secured to two joints, which have mutually parallel axes of rotation.
Claims11
A chair comprising a seat surface and a laterally pivotable backrest, wherein:
- the backrest is secured to two joints, which have mutually parallel axes of rotation,
- the axes of rotation are attached on one side to a common base plate, extend backwards from the base plate at an acute angle (a) with a horizontal plane,
- the base plate is detachably attached to the rear end of a chair mechanism which couples the backrest to the seat surface,
- the joints are each operatively connected to restoring elements which are torsion springs which act in opposite directions, and
- wherein the seat backrest has a frame having a gap in an area between the joints.
2 more elements
A chair comprising a seat surface and a laterally pivotable backrest, wherein:
- the backrest is secured to two joints, which have mutually parallel axes of rotation,
- the axes of rotation are attached on one side to a common base plate, extend backwards from the base plate at an acute angle (a) with a horizontal plane,
- the base plate is detachably attached to the rear end of a chair mechanism which couples the backrest to the seat surface,
- the joints are each operatively connected to restoring elements which are torsion springs which act in opposite directions,
- wherein the seat backrest has a frame having a gap in an area between the joints, and
- wherein at least one elastic element is positioned in the gap.
3 more elements
Dependencies are inferred from the claim text.