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NONCONTACT METHOD FOR MEASURING PITCH OF GEAR TEETH AND SCREW

外国特許コード F060001450
整理番号 F060001450
掲載日 2006年7月28日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2005JP016289
国際公開番号 WO 2006/030664
国際出願日 平成17年9月6日(2005.9.6)
国際公開日 平成18年3月23日(2006.3.23)
優先権データ
  • 特願2004-265478 (2004.9.13) JP
発明の名称 (英語) NONCONTACT METHOD FOR MEASURING PITCH OF GEAR TEETH AND SCREW
発明の概要(英語) A method for measuring the pitch in a noncontact way in a short time with high precisionby using a simple device. The method comprises a first step of moving an object(2) having shape-of-interest portions (4) of generally the same shapes so thatthe shape-of-interest portions (4) move along the same path (8), a second stepof continuously acquiring optical data on the shape-of-interest portions (4)passing a predetermined position (6) on the path (8) from a fixed position whilefocusing on the predetermined position (6) and storing the optical data, a thirdstep of calculating a focusing evaluation value representing the numericalfocusing degree at the area corresponding to the predetermined position (6)of the acquired optical data using the movement distance as a variable accordingto the correspondence relationship between the stored optical data and the movementdistance of the shape-of-interest portion (4) of the object (2) and determininga point group of combinations of the movement distance and the focusing evaluationvalue, and a fourth step of applying a reference curve to the point group and determiningthe pitch on the basis of the application point on the reference curve.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Kyoto University
  • 発明者(英語)
  • Komori, Masaharu
  • Kubo, Aizoh
  • Oda, Yoshihiro
国際特許分類(IPC)
指定国 AE AG AL AM AT AU AZ BA BB BE BF BG BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GW HR HU ID IE IL IN IS IT JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MC MD MG MK ML MN MR MW MX MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RU SC SD SE SG SI SK SL SM SN SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW
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