Foldable plastic-steel chair
AssigneeNew-Tec Integration (Xiamen) Co., Ltd.
InventorLuhao Leng
Life of this patent
Estimating the term…
Abstract
A foldable plastic-steel chair comprises a seat board assembly, a backrest, and a metal supporting frame. The seat board assembly and the backrest are connected to the metal supporting frame, and the seat board assembly comprises a seat board. The seat board comprises a surface plate and a surrounding edge connected to a periphery of the surface plate and extending downward, and the seat board is a vacuum-formed plastic board. The seat board assembly further comprises a metal frame abutting a periphery of seat board, and a bottom end of the metal frame is bent outward to form a hook. A lower end portion of the surrounding edge of the seat board is disposed in the hook, and a portion of the metal frame abuts an inner side of the surrounding edge. The hook is fixedly clamped to a lower edge of the surrounding edge.
Claims20
A foldable plastic-steel chair, comprising:
- a seat board assembly,
- a backrest, and
- a metal supporting frame, wherein:
- the seat board assembly and the backrest are connected to the metal supporting frame,
- the seat board assembly comprises a seat board,
- the seat board comprises a surface plate and a surrounding edge connected to a periphery of the surface plate and extending downward,
- the seat board is a vacuum-formed plastic board,
- the seat board assembly further comprises a metal frame abutting a periphery of the seat board,
- a bottom end of the metal frame is bent outward to form a hook,
- a lower end portion of the surrounding edge of the seat board is disposed in the hook,
- a portion of the metal frame abuts an inner side of the surrounding edge,
- the hook is fixedly clamped to a lower edge of the surrounding edge,
- a connecting portion of the surface plate and the surrounding edge define a transition shoulder, so that an upper step and a lower step are formed between the surrounding edge and the surface plate, and
- the lower step is at least supported by the metal frame.
A foldable plastic-steel chair, comprising:
- a seat board assembly,
- a backrest, and
- a metal supporting frame, wherein:
- the seat board assembly and the backrest are connected to the metal supporting frame,
- the seat board assembly comprises a seat board,
- the seat board comprises a surface plate and a surrounding edge connected to a periphery of the surface plate and extending downward,
- the backrest is a vacuum-formed plastic board,
- an upper edge of the backrest is at least folded rearward to form a buckle edge,
- the metal supporting frame comprises a slot or an insertion groove corresponding to the buckle edge,
- the buckle edge is disposed in the slot or the insertion groove, and
- the slot or the insertion groove is configured to be pressed to enable the buckle edge to be fixedly clamped by the slot or the insertion groove.
A foldable plastic-steel chair, comprising:
- a seat board assembly,
- a backrest, and
- a metal supporting frame, wherein:
- the seat board assembly and the backrest are connected to the metal supporting frame,
- the seat board assembly comprises a seat board,
- the seat board comprises a surface plate and a surrounding edge connected to a periphery of the surface plate and extending downward,
- the seat board is a vacuum-formed plastic board,
- the seat board assembly further comprises a metal frame abutting a periphery of the seat board,
- a bottom end of the metal frame is bent outward to form a hook,
- a lower end portion of the surrounding edge of the seat board is disposed in the hook,
- a portion of the metal frame abuts an inner side of the surrounding edge,
- the hook is fixedly clamped to a lower edge of the surrounding edge,
- a cross section of the metal frame has an enclosed cavity, and
- a shape of the enclosed cavity is rectangular.
Dependencies are inferred from the claim text.