Title:
PULLEY DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
Japanese Patent JP2023038441
Kind Code:
A
Abstract:
To realize a pulley device capable of sufficiently reducing generated noise.SOLUTION: Plural stages of pitch fluctuations (for example, five stages of pitch fluctuations -80 μm, -40 μm, 0 μm, +40 μm, +80 μm) in which the magnitude of an absolute value is within a range of a backlash B or less between belt teeth and pulley teeth, and in which the magnitude of an absolute value of difference between those similar in magnitude becomes a predetermined value or more are assigned to drive pulley teeth, thereby gradually changing pitches of the pulley teeth.SELECTED DRAWING: Figure 7
Inventors:
IWASAKI MAIKU
Application Number:
JP2021145163A
Publication Date:
March 17, 2023
Filing Date:
September 07, 2021
Export Citation:
Assignee:
NSK LTD
International Classes:
F16H7/02; F16H55/38; F16H19/04
Attorney, Agent or Firm:
Kiwa Patent Office