초록 ▼

A winding device includes a hand crank, a securing substrate plate, and two unidirectional gears pivotally coupled between the hand crank and the substrate plate by a pivot member. A pivot member is inserted, in one operation, through axial holes of pivot mounting portions of the hand crank and the

A winding device includes a hand crank, a securing substrate plate, and two unidirectional gears pivotally coupled between the hand crank and the substrate plate by a pivot member. A pivot member is inserted, in one operation, through axial holes of pivot mounting portions of the hand crank and the securing substrate plate, and through a semicircular through holes of the unidirectional gears to pivotally couple the hand crank with the securing substrate plate and unidirectional gears. The pivot member includes two semi-circular pivot portions that are disposed parallel and opposite to each other. Each pivot portion is formed by curling and bending a plate into a semi-circular structure. The pivot portion includes a curved face and two curled portions disposed on an inner side of the curved face. The curled portions have end portions curling in opposite directions and abutting the inner side of the curved face at different points so as to increase the bending strength of the curved face.

대표청구항 ▼

[ What is claimed is:] [1.] A winding device, comprising a hand crank, a securing substrate plate, and two unidirectional gears pivotally coupled between said hand crank and said securing substrate plate by a pivot member, each of said hand crank and said securing substrate plate being provided with

[ What is claimed is:] [1.] A winding device, comprising a hand crank, a securing substrate plate, and two unidirectional gears pivotally coupled between said hand crank and said securing substrate plate by a pivot member, each of said hand crank and said securing substrate plate being provided with a pair of pivot mounting portions at one edge thereof which faces that of the other, said pivot mounting portions being spaced apart from each other on said edge on both sides of each of said hand crank and said securing substrate plate, and being provided with co-axial through holes, said unidirectional gears each having a circular axial through hole that is divided by a stop rib into two semi-circular through holes, being sandwiched between a respective one of said pivot mounting holes of said hand crank and a respective one of said pivot mounting holes of said securing substrate plate and being disposed between said hand crank and said securing substrate plate, said pivot member being inserted, in one operation, through said axial holes of said pivot mounting portions of said hand crank and of said securing substrate plate, and through said semi-circular through holes of said unidirectional gears to pivotally couple said hand crank with said securing substrate plate and said unidirectional gears, wherein said pivot member includes two semi-circular pivot portions that are disposed parallel and opposite to each other, each pivot portion being formed by curling nd bending a plate into a semi-circular structure with a cross-section shaped having a curved face and two curled portions disposed on an inner side of said curved face, said two curled portions having end portions pointing in opposite directions and abutting the inner side of said curved face at different points so as to increase the bending strength of said curved face.