JP4282423B2 - 樹脂製やまば歯車 - Google Patents
樹脂製やまば歯車 Download PDFInfo
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- JP4282423B2 JP4282423B2 JP2003331922A JP2003331922A JP4282423B2 JP 4282423 B2 JP4282423 B2 JP 4282423B2 JP 2003331922 A JP2003331922 A JP 2003331922A JP 2003331922 A JP2003331922 A JP 2003331922A JP 4282423 B2 JP4282423 B2 JP 4282423B2
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- Prior art keywords
- gear
- mold
- resin
- tooth
- width direction
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- Moulds For Moulding Plastics Or The Like (AREA)
- Gears, Cams (AREA)
Description
Claims (2)
- ねじれが反対のはすば歯車を貼り合わせたような形状を呈し、
歯幅方向中央部の山形の頂部から歯幅方向一端側の第1歯車部分を形作る第1金型と、前記歯幅方向中央部の山形の頂部から歯幅方向他端側の第2歯車部分を形作る第2金型とを突き合わせ、これら第1金型と第2金型のキャビティ内に樹脂を射出して一体成形されてなる樹脂製やまば歯車において、
前記第1金型と前記第2金型の突き合わせ部分に位置する前記歯幅方向中央部の山形の頂部を、歯先面から歯底面近傍まで、歯厚が減じる方向に切り欠いて噛み合い逃げ部を形成したことを特徴とする樹脂製やまば歯車。 - ねじれが反対のはすば歯車を貼り合わせたような形状を呈し、
歯幅方向中央部の山形の頂部から歯幅方向一端側の第1歯車部分を形作る第1金型と、前記歯幅方向中央部の山形の頂部から歯幅方向他端側の第2歯車部分を形作る第2金型とを突き合わせ、これら第1金型と第2金型のキャビティ内に樹脂を射出して一体成形されてなる樹脂製やまば歯車において、
前記第1金型と前記第2金型の突き合わせ部分に位置する前記歯幅方向中央部の山形の頂部の裏面には、歯先面から歯底面近傍まで、噛み合う相手歯車の山形の頂部に接触しないように凹ませた噛み合い逃げ部を形成したことを特徴とする樹脂製やまば歯車。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003331922A JP4282423B2 (ja) | 2003-09-24 | 2003-09-24 | 樹脂製やまば歯車 |
US10/910,929 US7415907B2 (en) | 2003-08-04 | 2004-08-04 | Resin double helical gear and gear train using same |
US12/175,118 US7770484B2 (en) | 2003-08-04 | 2008-07-17 | Resin double helical gear and gear train using same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2003331922A JP4282423B2 (ja) | 2003-09-24 | 2003-09-24 | 樹脂製やまば歯車 |
Publications (2)
Publication Number | Publication Date |
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JP2005098369A JP2005098369A (ja) | 2005-04-14 |
JP4282423B2 true JP4282423B2 (ja) | 2009-06-24 |
Family
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Family Applications (1)
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JP2003331922A Expired - Fee Related JP4282423B2 (ja) | 2003-08-04 | 2003-09-24 | 樹脂製やまば歯車 |
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JP (1) | JP4282423B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4801392B2 (ja) * | 2005-07-29 | 2011-10-26 | 大肯精密株式会社 | 鋼管用穿孔機 |
JP4697887B2 (ja) * | 2006-10-19 | 2011-06-08 | 株式会社エンプラス | 一対の樹脂製やまば歯車 |
JP4780780B2 (ja) * | 2006-12-13 | 2011-09-28 | 株式会社エンプラス | 一対の樹脂製やまば歯車 |
JP4919495B2 (ja) * | 2007-03-23 | 2012-04-18 | 株式会社エンプラス | 樹脂製やまば歯車 |
JP4925309B2 (ja) * | 2007-03-27 | 2012-04-25 | 株式会社エンプラス | 樹脂製歯車 |
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2003
- 2003-09-24 JP JP2003331922A patent/JP4282423B2/ja not_active Expired - Fee Related
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JP2005098369A (ja) | 2005-04-14 |
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