Westerman, Hattori, Daniels & Adrian, LLP
Fastening tool
A fastening tool is provided that incorporates, in an outer annular body into which a first nut is inserted to be driven to rotate, an inner annular body into which a first nut and a second nut having a pitch different from the pitch of the first nut are inserted to be driven to rotate, and that simultaneously rotates the two nuts and fastens the nuts to a bolt. A flange shaft body is driven to rotate relatively to the outer annular body and the inner annular body via a plurality of balls. The balls are held by the flange shaft body and pressed towards notches of the outer annular body and the inner annular body with urging forces of first and second urging members via holding members respectively.
Nissei Co., Ltd.
B Y B B F Y B
B25B Y10T B25B B25B F16B Y10T B25B
inventional additional inventional inventional inventional additional inventional
Shuichi Yasuyuki Toshinaka
Amano Suzuki Shinbutsu