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Title:
LOW-HYSTERESIS CAM MECHANISM PROVIDED WITH TAPERED ROLLERS
Document Type and Number:
WIPO Patent Application WO/2019/171459
Kind Code:
A1
Abstract:
A cam mechanism which generates an axial force in combination with a means for producing a differential around a shaft is provided with: a cam plate which is rotatable around the shaft and coupled with the means to receive the differential; a pressure plate which is opposed to the cam plate in a shaft direction and moveable in the shaft direction; a plurality of tapered rollers which are interposed between the cam plate and the pressure plate and each of which is rotationally symmetric with respect to a radial axis orthogonal to the shaft, the tapered rollers having a rolling surface forming a conical surface tapering toward the shaft and an outer peripheral surface facing radially outward; and an annular support which contacts the outer peripheral surface so as to support each of the plurality of tapered rollers rotatably around the radial axis and so as to move axially together with the plurality of tapered rollers. Each of the cam plate and the pressure plate includes a cam surface contacting the rolling surface. The cam surfaces are inclined circumferentially with respect to a circumferential surface orthogonal to the shaft so as to generate the axial force in the pressure plate by causing the tapered rollers to roll in accordance with the differential.

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Inventors:
SHINOHARA TADASHI (JP)
MARUYAMA ATSUSHI (JP)
Application Number:
PCT/JP2018/008518
Publication Date:
September 12, 2019
Filing Date:
March 06, 2018
Export Citation:
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Assignee:
GKN DRIVELINE JAPAN LTD (JP)
International Classes:
F16H25/12; F16D27/108
Domestic Patent References:
WO2017149829A12017-09-08
Foreign References:
JP2008538400A2008-10-23
JP2016061350A2016-04-25
JP2001041230A2001-02-13
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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