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Title:
ACTUATOR OF HYDRAULIC MASTER CYLINDER
Document Type and Number:
Japanese Patent JP3613623
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide an actuation mechanism which can actuate the piston rod of a hydraulic master cylinder with large torque and besides quickly, and further is excellent in durability of a conversion mechanism from a rotational motion to rectilinear motion.
SOLUTION: This is an actuator for actuating a hydraulic mater cylinder by the drive of a motor 4, and this has a slider 15 which is rotated around a fixed shaft 7 through a row of actuator gears 18, 23, and 27 for reduction by the motor 4, an internal thread member 19 around the slider 15, an external thread member 21 which engages with the internal thread member 19, being provided around the fixed shaft 7, a sleeve 9 which can slide axially along the fixed shaft 7, being fixed to the piston rod 6 of the hydraulic master cylinder 3, and a slider bearing 16 which couples the sleeve 9 capably of relative shifting and besides capably of integrated shifting in axial direction to the slider 15.


Inventors:
武山 英司
Application Number:
JP1997000012049
Publication Date:
January 26, 2005
Filing Date:
January 06, 1997
Export Citation:
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Assignee:
愛知機械工業株式会社
International Classes:
H02K7/06; B60T13/74; F16D27/00; F16D29/00; F16D48/02; F16D48/04; H02K7/116; (IPC1-7): H02K7/116; H02K7/06
Domestic Patent References:
JP522241U
Attorney, Agent or Firm:
清水 義久