Patent ID: 8191815

Claim:
An auto-reversible reel, comprising: a housing, said housing comprising a left cover shell, a right cover shell attached to said left cover shell, and an inside shaft connected between said left cover shell and said right cover shell, said inside shaft having a longitudinal crevice and an axially extending locating hole; a rotor accommodated inside said housing between said left cover shell and said right cover shell, said rotor comprising a hollow cylindrical body, an axial hole cut through said hollow cylindrical body and coupled to said inside shaft of said left cover shell for allowing rotation of said rotor about said inside shaft of said left cover shell, two flanges respectively radially extending around two distal ends of the periphery of said hollow cylindrical body and a power spring accommodation chamber defined in one side of said hollow cylindrical body; a power spring mounted in said power spring accommodation chamber, said power spring having an inner end thereof fastened to the longitudinal crevice of said inside shaft of said left cover shell and an outer end fastened to an inside wall of said hollow cylindrical body of said rotor; and an operation control device, said operation control device comprising a pull rope and a control member, said pull rope being wound round said hollow cylindrical body of said rotor and having a first end thereof fastened to said rotor and a second end thereof extending out of said housing and connected to said control member; wherein a user operates said control member to pull said pull rope out of said housing, said rotor is rotated about said inside shaft of said left cover shell and said power spring is wound round said inside shaft of said left cover shell; when the user release the hand from said control member, the tensile force of said power spring reverses said rotor to wind back said pull rope; wherein said power spring has a retaining hole at the outer end thereof for mounting; said rotor comprises a retaining block located inside said hollow cylindrical body for the fastening of the retaining hole of said power spring, and a stop plate located inside said hollow cylindrical body and suspending above said retaining block to prohibit disconnection of said retaining hole of said power spring from said retaining block.