Operation force compensation device for drive device of bicycle

Application Number: 00108575
Application Date: 2000.05.15
Publication Number: 1299763
Publication Date: 2001.06.20
Priority Information: 1999/12/10 US 09/459252
International: B62M25/08
Applicant(s) Name: Shimano Inc.
Inventor(s) Name: Kitamura Akira;Fujii Kazuji
Patent Agency Code: 72001
Patent Agent: zeng xiangling
Abstract A motor drive apparatus for a bicycle transmission includes a support; an interface member for coupling to a transmission actuating member that exerts a first force having a first force component in a first direction, wherein the interface member is mounted to the support for rotation around a rotational axis; a motor for coupling to the interface member, and a biasing mechanism for exerting a second force on the interface member having a second force component in a second direction opposite the first direction.