Deceleration mechanism and absolute encoder

专利名称：Deceleration mechanism and absolute

encoder

发明人：長田 靖夫,根岸 央樹,齋藤 勝典,佐藤 徳和申请号：JP2019069043申请日：20190329公开号：JP2020165917A公开日：20201008

专利附图：

摘要：Problem to be solved: to provide an absolute encoder suitable forminiaturization. Absolute encoderFirst drive gearFirst permanent magnetFirst anglesensorThe center axis is perpendicular to the center axis of the first drive gearA firstdriven gear meshing with a first drive gear andCoaxial with the first driven gear;A seconddrive gear rotating in accordance with the rotation of a first driven gearThe center axis isperpendicular to the center axis of the first driven gearA second driven gear meshingwith a second drive gearA second permanent magnet provided on the tip end of the

second driven gearA second angle sensor for detecting the rotation angle of a seconddriven gear corresponding to a change in the magnetic flux generated from the secondpermanent magnet and.The reduction ratio between the first driving gear (worm gearportion 101c) and the first driven gear (worm wheel portion 102a) is set to a value whichreduces the influence of the backlash between the first driving gear and the first drivengear as an error with respect to the rotation angle of the second driven gear.Fig. 33 (a)

申请人：ミネベアミツミ株式会社

地址：長野県北佐久郡御代田町大字御代田４１０６－７３

国籍：JP

代理人：伊東 忠重,伊東 忠彦

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