Title:
回転直線運動変換機構の製造方法及びその実施に使用する治具
Document Type and Number:
Japanese Patent JP4858288
Kind Code:
B2
Abstract:
A method is provided for manufacturing a rotational rectilinear motion conversion mechanism provided with an annular shaft through which an opening extends in an axial direction, a sun shaft arranged in the annular shaft, and a plurality of planetary shafts arranged around the sun shaft, in which the annular shaft includes an annular shaft main body having an annular threaded section defined by an internally threaded section, the sun shaft includes a sun shaft main body having a sun threaded section defined by an externally threaded section, the planetary shafts each include a planetary shaft main body having a planetary threaded section defined by an externally threaded section, the planetary threaded section is engaged with the annular threaded section and the sun threaded section, and rotational motion of either one of the annular shaft and the sun shaft is converted into rectilinear motion of the other one of the annular shaft and the sun shaft along an axial direction by a planetary motion of the planetary shaft. The method comprises the steps of: forming an indicator in the sun shaft main body; forming the sun threaded section in the sun shaft main body based on a sun indicator, which is the indicator of the sun shaft main body;
assembling a basic assembly by combining the sun shaft main body with the planetary shaft main bodies based on the sun indicator; forming an indicator in the annular shaft main body; forming the annular threaded section in the annular shaft main body based on an annular indicator, which is the indicator of the annular shaft main body; assembling an axial assembly by combining the basic assembly with the annular shaft main body; and setting the rotational phase of the annular threaded section as an annular threaded section reference phase based on a rotational phase of the sun indicator and a rotational phase of the annular indicator before assembling the axial assembly, in which when one threaded section formed by a portion of the planetary threaded section engaged with the annular threaded section is defined as a counter annular threaded section, and the annular threaded section reference phase is defined as a rotational phase of the annular threaded section relative to a rotational phase of the counter annular threaded section at a time when the counter annular threaded section begins to engage with the annular threaded section.
Inventors:
Yasuro Kinoshita
Masakazu Kurihara
Hideo Saito
Motohiro Tsuzuki
Masakazu Kurihara
Hideo Saito
Motohiro Tsuzuki
Application Number:
JP2007113051A
Publication Date:
January 18, 2012
Filing Date:
April 23, 2007
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16H25/20
Domestic Patent References:
| JP2006064057A | ||||
| JP11159593A |
Foreign References:
| WO2004094870A1 |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda