Title:
AXIAL FORCE GENERATOR AND TRACTION DERIVE SPEED CHANGE GEAR
Document Type and Number:
Japanese Patent JP3537329
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an axial force generator capable of generating sufficient axial force even at an emergency torque range without reducing fatigue life and a traction drive speed change gear.
SOLUTION: This speed change gear is provided with a traction drive mechanism and an axial force generator. The axial force generator is provided with two rotary cams and a roller. Each rotary cam 12 forms a cam surface 12a forming a decreased lead angle toward the vicinity of a projected part P11. This generates comparatively low axial force on the low torque side having the increased lead angle, and comparatively high axial force on the high torque side having the decreased lead angle. Thus, properly using the axial force having different force reinforces the axial force at a required torque range without reducing fatigue life.
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Inventors:
Goi, Tatsuhiko
Kawakami, Koji
Machida, Takashi
Kawakami, Koji
Machida, Takashi
Application Number:
JP32557698A
Publication Date:
June 14, 2004
Filing Date:
November 16, 1998
Export Citation:
Assignee:
COMMUTER HELICOPTER SENSHIN GIJUTSU KENKYUSHO:KK
NSK LTD
NSK LTD
International Classes:
F16H15/38; F16H25/14; (IPC1-7): F16H15/38; F16H25/14
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