US 2016/0353894 A1Published application

Ball chair

AssigneeChia Lin Sport Co., Ltd.

InventorChih-Chan HSU

Life of this patent

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Abstract

A ball chair includes a ball-shaped cushion, a seat, a back and at least a threaded fastening member. The seat has a bearing portion for bearing the cushion, and a connecting portion connected with the bearing portion and having an engaging recess and at least a through hole communicating with the engaging recess. The back has an engaging block inserted in the engaging recess and having at least two relatively larger protrusions, at least a relatively smaller protrusion located between the two relatively larger protrusions, and at least a threaded hole provided in the relatively smaller protrusion and corresponding in position to the through hole. The threaded fastening member is inserted through the through hole and fixed in the threaded hole to fix the back to the seat.

Claims9

Dependent claims

A ball chair comprising:

a cushion having a ball shape;
a seat having a bearing portion supporting the cushion, and a connecting portion connected with the bearing portion and provided with an engaging recess and at least a through hole communicated with the engaging recess;
a back having an engaging block inserted in the engaging recess and having at least two relatively larger protrusions spaced from each other, at least one relatively smaller protrusion located between said at least two relatively larger protrusions, and at least one threaded hole provided at said at least one relatively smaller protrusion and corresponding in position to the through hole of the connecting portion of the seat;
and
at least one threaded fastening member having a head and a body extended from the head, inserted through the through hole of the connecting portion and engaged in the threaded hole of the engaging block for fixing the back to the seat.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/730,661Filed 4 Jun 2015
Published: 8 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A47C 7/002
Parts, details, or accessories of chairs or stools: chair or stool bases
A47C 4/54
Foldable, collapsible or dismountable chairs: inflatable chairs
A47C 7/42
For the back: of detachable or loose type
A47C 9/002
Stools for specified purposes: with exercising means or having special therapeutic or ergonomic effects

Family

US 9,713,383 B2Related patent
US 2016/0353894 A1This patent

From the US filing history. Foreign family members aren’t listed.

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