Patent ID: 6095450
Filing Date: 2000-08-01
Classification: A44B,B60P,Y10T

Abstract:
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.