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Title:
ROTATION-LINEAR MOTION CONVERTING DEVICE, AND ELECTRIC POWER STEERING DEVICE, VEHICLE AND MACHINE DEVICE EQUIPPED THEREWITH
Document Type and Number:
Japanese Patent JP2017040344
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rotation-linear motion converting device for achieving relatively high quietness.SOLUTION: A rotation-linear motion converting device 20 includes a shaft 7 having a shank 30 whose outer peripheral face is cylindrically shaped, a housing 40 externally fitted to the shaft 7 across a gap, a plurality of rollers 50 fixed at its base end to the housing 40 and equally spaced from the shaft 7 in the peripheral direction, and a linear encoder 100 capable of acquiring linear motion information showing the linear motion state of the shank 30. The plurality of rollers 50 are supported on the housing 40 rotatably at the same inclination angle α to the axis of the shaft 7 in the torsional direction, and also put in slide contact with the shank 30 of the shaft 7 while applying a preload thereto to enable the transmission of traction driving force.SELECTED DRAWING: Figure 1

Inventors:
WATANABE ITSUO
MIURA SHOTA
Application Number:
JP2015164008A
Publication Date:
February 23, 2017
Filing Date:
August 21, 2015
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16H19/02; B62D5/04
Domestic Patent References:
JPH04203649A1992-07-24
JPS60241563A1985-11-30
JPH10235958A1998-09-08
JP2002209766A2002-07-30
JP2006224767A2006-08-31
JP2007057017A2007-03-08
Attorney, Agent or Firm:
内藤 嘉昭
宮坂 徹
尾林 章