A wire winding wheel comprising:
- a first pulley made integrally of a plastic material by injection molding and composed of a first disk having at a center thereof a shaft hole, a first cylindrical body of a hollow construction and fastened at one end thereof with one side of said first disk, and a ratchet wheel fastened with another side of first disk such that said ratchet wheel is opposite in location to said first cylindrical body, said first cylindrical body provided in a wall body thereof with a plurality of ribs fastened therewith such that said ribs are arranged equidistantly, said ribs provided respectively with an axial hole, said first cylindrical body further provided on an inner wall thereof with a baffle fastened therewith;
- a shaft received in said shaft hole of said first disk and provided respectively at both ends thereof with a retaining portion, said shaft further provided with a slot extending in the direction of a longitudinal axis of said shaft;
- a spiral spring received in said first cylindrical body such that a curved portion of one end of said spiral spring is engaged with said slot of said shaft, and that another end of said spiral spring is received in a space located between said baffle and the surface of said inner wall of said first cylindrical body;
- a second pulley made integrally of a plastic material by injection molding and composed of a second disk having a hub provided with an axial hole engageable with said shaft, said second pulley further composed of a second cylindrical body of a hollow construction and similar in diameter to said first cylindrical body and fastened at one end thereof with one side of said second disk, said second cylindrical body provided in a wall body thereof with a plurality of through holes corresponding in location and number to said axial holes of said ribs of said first cylindrical body of said first pulley for receiving a plurality of screws engageable with said axial holes of said ribs of said first cylindrical body;
- a first housing made integrally of a plastic material by injection molding and provided with a first receiving space for housing said first pulley, said first housing still further provided in a side wall thereof with a cutout and a plurality of retaining projections, said first housing still further provided on a wall of a closed end thereof with a pin fastened therewith for pivoting an arrester capable of being caused by a biasing means to turn toward said shaft such that an arresting end of said arrester is engaged with said ratchet wheel for locating a wire wound on said first and said second cylindrical bodies, said first housing still further provided in an outer wall thereof with a plurality of fastening holes, said first receiving space of said first housing having a retaining hole engaged with said retaining portion located at one end of said shaft;
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- a second housing made integrally of a plastic material by injection molding and provided with a second receiving space for housing said second pulley, said second receiving space having a retaining hole engaged with said retaining portion located at another end of said shaft, said second housing further provided in a side wall thereof with a cutout corresponding in location to said cutout of said first housing for forming together a through hole for said wire to be pulled therethrough, said second housing still further provided in a side wall of an open end thereof with a plurality of retaining slots engaged securely with said retaining projections of said first housing, said second housing still further provided in an outer wall thereof with a plurality of fastening holes for receiving screws engageable with said fastening holes of said first housing, said second housing still further provided with a receptacle fastened therewith.