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    • 1. 发明授权
    • Method of manufacturing multi-stage pulley
    • 制造多级滑轮的方法
    • US06338197B1
    • 2002-01-15
    • US09274731
    • 1999-03-23
    • Hiroshi ShoharaMitsunori AdachiHaruo SuzukiYasuji KasuyaTetuo OhnoYasuo TabuchiMasahiro KinoshitaShigeo Murata
    • Hiroshi ShoharaMitsunori AdachiHaruo SuzukiYasuji KasuyaTetuo OhnoYasuo TabuchiMasahiro KinoshitaShigeo Murata
    • B21K142
    • B21H1/04B21D53/261Y10T29/4946
    • The manufacturing cost of a multi-stage pulley is reduced without coaxially arranging a plurality of groove forming sections. While a portion between groove sections 103 is being pushed by a pushing roller 204, the groove sections 103 are successively formed. While a portion of workpiece W2 pushed by a groove forming roller 206 to form one groove section 103a and a portion of workpiece W2 pushed by a groove forming roller 207 to form the other groove section 103b are being shifted from each other in the circumferential direction, one groove section (103a) and the other groove section (103b) are simultaneously formed. Due to the foregoing, when the groove sections 103 are formed, it is possible to prevent the deformation of the groove section 103 and the groove section 103 which is adjacent to it. Accordingly, it is possible to enhance the yield of the multi-stage pulley 100 without coaxially arranging a plurality of groove forming sections. Therefore, the cost of manufacturing the multi-stage pulley 100 can be reduced.
    • 在不同时布置多个槽形成部的情况下,多级带轮的制造成本降低。 当槽部103之间的部分被推辊204推动时,槽部103依次形成。 当由槽形成辊206推动以形成一个槽部103a的工件W2的一部分和由槽形成辊207推动以形成另一个槽部103b的工件W2的一部分在圆周方向上彼此偏移时, 一个槽部(103a)和另一个槽部(103b)同时形成。 由于上述原因,当形成槽部103时,能够防止槽部103和与其相邻的槽部103的变形。 因此,可以在不同时布置多个槽形成部的情况下提高多级带轮100的收率。 因此,可以降低制造多级滑轮100的成本。