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专利名称：Power transmission mechanism and its
assembly method
发明人：Masahiko Okada,Akifumi Uryu,Kazuya
Kimura,Kenji Takenaka
申请号：US09362826申请日：19990728公开号：US06213882B1公开日：20010410
专利附图：
摘要：A power transmission mechanism having a pulley rotor and a release plate. Thepulley rotor is coaxial with the release plate, and power from the pulley rotor is
transmitted to the release plate to rotate the pulley rotor and the release plate in thesame direction. A spiral spring is located between the pulley rotor and the release plate.The spiral spring is releasably engaged with the pulley rotor. A transmission surface isprovided on the pulley rotor to oppose and engage a free end of the spiral spring. Thetransmission surface transfers power from the pulley rotor to the release plate, andrelative rotation between the pulley rotor and the release plate is permitted due todeformation of the spiral spring. A release projection causes the free end of the spiralspring to move and separate from the transmission surface in accordance with relativerotation between the pulley rotor and the release plate when the load applied to therelease plate exceeds a predetermined value. Therefore, if the release plate applies anunusually strong load to the pulley rotor, it will be released from the pulley rotor.
申请人：KABUSHIKI KAISHA TOYODA JIDOSHOKKI SEISAKUSHO
代理机构：Morgan & Finnegan, LLP
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