Title:
歯車の測定方法及び測定装置
Document Type and Number:
Japanese Patent JP6862636
Kind Code:
B2
Abstract:
A gear measurement method and a gear measurement apparatus capable of evaluating meshing and fitting of a gear are provided. A measurement method for a gear (9) includes a measurement step of measuring an actual movement locus of a ball (25) that is moved along a tooth groove (91) of the gear (9) as a shape evaluation index for the gear (9). In the case of a VGR rack, tooth surfaces (92) of rack teeth (9) are constituted of curved surfaces. Thus, a reference pin for use in OPD cannot be disposed so as to be in line contact with the tooth surfaces (92), and the rack teeth (9) cannot be measured. However, the ball (25) can be disposed so as to be in point contact with the tooth surfaces (92), which enables a measurement of the rack teeth (9).
Inventors:
Misato Nakamori
Toruya Morodome
Kobata Rintaro
Keiya Kitabayashi
Tetsuya Fujita
Toruya Morodome
Kobata Rintaro
Keiya Kitabayashi
Tetsuya Fujita
Application Number:
JP2016233721A
Publication Date:
April 21, 2021
Filing Date:
December 01, 2016
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
G01B5/20; F16H55/26; G01B21/20
Domestic Patent References:
| JP61070401A | ||||
| JP2001141444A |
Foreign References:
| WO2015166035A1 | ||||
| WO2015097919A1 |
Attorney, Agent or Firm:
Kiichi Yamamoto
Kobayashi Osamu
Kimura Gunji
Patent Business Corporation Aichi International Patent Office
Kobayashi Osamu
Kimura Gunji
Patent Business Corporation Aichi International Patent Office