JP4380278B2 - 渦電流式減速装置 - Google Patents
渦電流式減速装置 Download PDFInfo
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- JP4380278B2 JP4380278B2 JP2003322788A JP2003322788A JP4380278B2 JP 4380278 B2 JP4380278 B2 JP 4380278B2 JP 2003322788 A JP2003322788 A JP 2003322788A JP 2003322788 A JP2003322788 A JP 2003322788A JP 4380278 B2 JP4380278 B2 JP 4380278B2
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Description
15 第一磁石環
16 磁性部材
17 永久磁石
18 空隙
20 空隙間磁性部
21 非磁性部材
a 永久磁石の周方向の長さ
b 空隙間磁性部の周方向の長さ
W1 磁束回路
W2 磁束回路
W3 磁束回路
Claims (4)
- 回転軸に取り付けられた制動ドラムと、該制動ドラムに対向させて該制動ドラムの径方向の内側に配置された第一磁石環と、上記制動ドラムと該第一磁石環との間に配置された第二磁石環とを備え、上記第一磁石環と該第二磁石環とが相対回転可能である渦電流式減速装置であって、
上記第一磁石環は、リング状の磁性部材と、該磁性部材に周方向に所定間隔を隔てて設けられ且つ周方向に向き合う磁極が同極に設定された複数の永久磁石と、上記第一磁石環の磁性部材に上記第一磁石環の永久磁石よりも径方向の内側に設けられ、上記第一磁石環の永久磁石同士の磁気短絡を防止する空隙とを備え、
上記第二磁石環は、リング状の磁性部材と、該磁性部材に周方向に所定間隔を隔てて設けられ且つ周方向に向き合う磁極が同極に設定された複数の永久磁石とを備えたことを特徴とする渦電流式減速装置。 - 上記空隙を、上記第一磁石環の磁性部材に周方向に所定間隔を隔てて複数設け、各空隙間に上記第一磁石環の磁性部材で区切られた空隙間磁性部を形成した請求項1記載の渦電流式減速装置。
- 上記空隙間磁性部の周方向の長さを、上記第一磁石環の永久磁石の周方向の長さよりも小さく形成すると共に、上記空隙間磁性部の周方向の長さの中心と、上記第一磁石環の永久磁石の周方向の長さの中心とを上記第一磁石環の磁性部材の法線上に配置した請求項2記載の渦電流式減速装置。
- 上記空隙内に、非磁性部材を設けた請求項1〜3のいずれかに記載の渦電流式減速装置。
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JP2003322788A JP4380278B2 (ja) | 2003-09-16 | 2003-09-16 | 渦電流式減速装置 |
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JP2003322788A JP4380278B2 (ja) | 2003-09-16 | 2003-09-16 | 渦電流式減速装置 |
Publications (2)
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JP2005094878A JP2005094878A (ja) | 2005-04-07 |
JP4380278B2 true JP4380278B2 (ja) | 2009-12-09 |
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JP2003322788A Expired - Fee Related JP4380278B2 (ja) | 2003-09-16 | 2003-09-16 | 渦電流式減速装置 |
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