发明名称 |
Abrasion-resistant hydraulic hammer with low noise level |
摘要 |
There is provided an improved abrasion-resistant hydraulic hammer with a low noise level for preventing the leak-out of the noise made inside. The object is to provide an abrasion-resistant hydraulic hammer with a low noise level which can contribute to the establishment of a comfortable working environment and meet environmental standards against noise pollution by reducing leaked-out crashing sound. To achieve the object, a cylindrical plastic member containing oil is installed to a hole formed outward under a piston installed inside the hydraulic hammer, for guiding a tool in contact with the circumferential surface thereof./!
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申请公布号 |
US5755294(A) |
申请公布日期 |
1998.05.26 |
申请号 |
US19950560867 |
申请日期 |
1995.11.20 |
申请人 |
HYUP SUNG HEAVY INDUSTRIES CO., LTD. |
发明人 |
LEE, GUN-JIK |
分类号 |
B25D9/04;B25D17/11;(IPC1-7):B23B45/16 |
主分类号 |
B25D9/04 |
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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