Title:
BALL SCREW
Document Type and Number:
Japanese Patent JP3932885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a ball screw which can restrict a torque fluctuation by a slip of balls caused inside a ball circulating tube.
SOLUTION: A shape of ball circulating tube 20 is constituted so that a momentum of the ball 15 to the first direction (X) which orthogonally crosses with a shaft core of the tube is larger than that of the ball 15 to the second direction (Y) which orthogonally crosses with the first direction, and the outer surface 20a of the tube 20 in a vertical direction to the first direction (X) is fixed in face to face with the outer surface of the nut 13.
Inventors:
Watanabe Yasumi
Application Number:
JP2001385046A
Publication Date:
June 20, 2007
Filing Date:
December 18, 2001
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F16H25/22; (IPC1-7): F16H25/22
Domestic Patent References:
| JP11315835A |
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu
Previous Patent: IMAGE WRITING DEVICE
Next Patent: INDUCTION COUPLED PLASMA GENERATING SYSTEM AND PLASMA PROCESSING SYSTEM
Next Patent: INDUCTION COUPLED PLASMA GENERATING SYSTEM AND PLASMA PROCESSING SYSTEM