| 发明名称 | Vacuum casting apparatus | ||
| 摘要 | A vacuum casting apparatus that performs casting through decompression of a cavity includes: an ejector pin for releasing a molding from a mold; a pinhole that is a hole in which the ejector pin is slidably arranged and that has a small diameter portion and a large diameter portion that is more distant from the cavity than the small diameter portion is and is larger in diameter than the small diameter portion; and a hollow portion that is provided under an end portion, on a side where the cavity is present, of the large diameter portion. | ||
| 申请公布号 | US8813822(B2) | 申请公布日期 | 2014.08.26 |
| 申请号 | US201113992990 | 申请日期 | 2011.12.09 |
| 申请人 | Toyota Jidosha Kabushiki Kaisha | 发明人 | Kusaka Yusei;Tsuchiya Shoichi;Kikuchi Makoto;Ikuta Hiroyuki;Hatakeyama Shigeru |
| 分类号 | B22D17/22;B22D18/06 | 主分类号 | B22D17/22 |
| 代理机构 | Kenyon & Kenyon LLP | 代理人 | Kenyon & Kenyon LLP |
| 主权项 | 1. A vacuum casting apparatus that performs casting through decompression of a cavity, comprising: an ejector pin that releases a molding from a mold; a pinhole in which the ejector pin is slidably arranged, wherein the pinhole has a small diameter portion and a large diameter portion that is more distant from the cavity than the small diameter portion is and that is larger in diameter than the small diameter portion; and a hollow portion that is provided under an end portion, on a side where the cavity is present, of the large diameter portion such that a release agent, being carried toward the cavity, is allowed to drop into the hollow portion. | ||
| 地址 | Toyota-Shi JP | ||