发明名称 |
LAGERUNG DES KAPPENANSTELLZYLINDERS BEI EINEM SCHILDAUSBAUGESTELL |
摘要 |
A roof support employs an hydraulic piston and cylinder unit as an adjustment device between the goaf shield and the roof-engaging structure. The cylinder unit is mounted to the shield with the aid of a bearing body defining a cup receiving a spherical end of the cylinder. The body also has recesses accessible via offset openings in which journals projecting from the cylinder are located. Locking pieces detachably fitted to the shield block the openings to retain the journals therein yet permit easy assembly and dismantling of the unit. |
申请公布号 |
DE3630580(A1) |
申请公布日期 |
1988.03.10 |
申请号 |
DE19863630580 |
申请日期 |
1986.09.09 |
申请人 |
GEWERKSCHAFT EISENHUETTE WESTFALIA GMBH |
发明人 |
WOJACZEK,EGON;POKLEKOWSKI,HELMUT;REICHELT,KLAUS-PETER |
分类号 |
E21D23/04;(IPC1-7):E21D23/06 |
主分类号 |
E21D23/04 |
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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