Armrest mechanism of foldable sofa
AssigneeAnji Qianyuan Furniture Co., Ltd.
InventorFeng Chen
Life of this patent
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Abstract
An armrest mechanism of a foldable sofa includes an outer support plate, an inner bracing plate, and a driving rod. The outer support plate and the inner bracing plate are respectively arranged at two sides of the driving rod. Multiple groups of crank rod assemblies are arranged on the driving rod, and the driving rod is individually hinged with the outer support plate and the inner bracing plate through the crank rod assemblies. Each crank rod assembly includes a first rod and a second rod. An end of the first rod is hinged with the inner bracing plate and the other end is hinged with the driving rod. An end of the second rod is hinged with the outer support plate and the other end is hinged with the driving rod. A gear structure is engaged between the first rod and the second rod.
Claims9
An armrest mechanism of a foldable sofa, comprising:
- an outer support plate (100),
- an inner bracing plate (300);
- and
- a driving rod (200), wherein the outer support plate (100) and the inner bracing plate (300) are respectively arranged at two sides of the driving rod (200);
- a plurality of groups of crank rod assemblies (400) are provided on the driving rod (200), and the driving rod (200) is individually hinged with the outer support plate (100) and the inner bracing plate (300) through the plurality of groups of crank rod assemblies (400);
- and
- wherein each of the plurality of groups of crank rod assemblies (400) comprises a first rod (410) and a second rod (420);
- an end of the first rod (410) is hinged with the inner bracing plate (300), and an end of the first rod (410) facing away from the inner bracing plate (300) is hinged with the driving rod (200);
- an end of the second rod (420) is hinged with the outer support plate (100), and an end of the second rod (420) facing away from the outer support plate (100) is hinged with the driving rod (200);
- and a gear structure (430) is arranged between the first rod (410) and the second rod (420) for meshing connection.
Dependencies are inferred from the claim text.