发明授权
- 专利标题： Stepped punch for forming holes in molded wood strand parts
- 专利标题（中）： 用于在模制木线部分中形成孔的阶梯冲头
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申请号： US10333280申请日： 2000-07-31
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公开(公告)号： US06843946B1公开(公告)日： 2005-01-18
- 发明人: Bruce A. Haataja
- 申请人： Bruce A. Haataja
- 申请人地址： US MI Hancock
- 专利权人： GFP Strandwood Corp.
- 当前专利权人： GFP Strandwood Corp.
- 当前专利权人地址： US MI Hancock
- 代理机构： Price, Heneveld, Cooper, DeWitt & Litton, LLP
- 国际申请： PCTUS00/20880 WO 20000731
- 国际公布： WO0209921 WO 20020207
- 主分类号： B29C43/36
- IPC分类号： B29C43/36 ; C08J5/04
摘要：
A mold for forming wood flakes into a molded wood flake part including a top mold die and a bottom mold die. The top mold die includes a punch for forming a hole in the part, and the bottom mold die includes a punch receiving aperture. The punch includes a tapered upper portion and a cylindrical lower portion for forming the hole in molded parts of varying thicknesses. The punch includes a tapered upper section defining an upper opening of a first radius in a top surface of the molded part and a cylindrical lower section defining an opening of a second radius in a bottom surface of the molded part. The cylindrical lower portion is sufficiently long that the bottom opening in the hole in each part formed will have the same second radius.
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