发明名称 |
Method and device for manufacturing slip prevention material of construction machinery |
摘要 |
The present invention achieves easy manufacturing of a slip stopper that has a great slip stopping effect and can be used for a location where a problem occurs if a though hole is opened therein. After a protruding portion is formed by using a first punching die unit so as to protrude from the upper surface of a steel plate 5 in a plate thickness direction, a concave portion 8 and drain channels 9 are formed in the protruding portion by shear planes that face almost perpendicularly to the steel plate upper surface and have been half-blanked so as not to open a through hole in the steel plate by using a second punching die unit 11, whereby it becomes possible to readily manufacture an excellent slip stopper.
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申请公布号 |
US2004134251(A1) |
申请公布日期 |
2004.07.15 |
申请号 |
US20030475166 |
申请日期 |
2003.10.17 |
申请人 |
OHNO SHUNJI;IWASA KAZUMICHI;NAKAJIMA NORIO;TSUJI MASANORI;DOI TSUYOSHI;KOUZU YOSHIHISA;MIYAKE HIDEYUKI;SUGIMOTO MAMORU |
发明人 |
OHNO SHUNJI;IWASA KAZUMICHI;NAKAJIMA NORIO;TSUJI MASANORI;DOI TSUYOSHI;KOUZU YOSHIHISA;MIYAKE HIDEYUKI;SUGIMOTO MAMORU |
分类号 |
E02F9/16;B21D22/04;B21D35/00;B60P7/08;E02F9/24;(IPC1-7):B21D31/02 |
主分类号 |
E02F9/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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