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57. 发明授权

US4583601A Hammer drill 失效
标题翻译：锤钻
公开(公告)号：US4583601A
公开(公告)日：1986-04-22
申请号：US501735
申请日：1983-06-06
申请人： Marcel Techy
发明人： Marcel Techy
IPC分类号： E21B1/30 , E21B1/34 , E21B4/06 , E21B4/14 , E21B21/12 , E21B1/00
CPC分类号： E21B21/12 , E21B4/06 , E21B4/14
摘要： A "hole bottom" hammer drill comprising a tubular body (1) supplied with compressed air, a drill bit (3) and a percussion piston (38) caused to move in an inner cylinder (7) by a mechanism distributing compressed air alternately below and above the piston.The hammer drill includes a device (29) for injecting gas oil into the chamber (71) above the piston (38) and a mechanism (34, 35) for triggering the injection during the upward stroke of the piston (38); the additional compression effects the combustion of the air-gas oil mixture, thus projecting the piston (38) towards the drill bit (3).
摘要翻译：一种“孔底”锤钻，包括供给压缩空气的管状体（1），钻头（3）和冲击活塞（38），其通过将压缩空气交替下方分配的机构在内筒（7）中移动并在活塞上方。锤钻包括用于将气油喷射到活塞（38）上方的腔室（71）中的装置（29）和用于在活塞（38）的向上冲程期间触发喷射的机构（34,35）; 附加压缩影响空气 - 油混合物的燃烧，从而将活塞（38）朝向钻头（3）突出。

59. 发明授权

US3570608A Hammer mechanism for percussion tools 失效
标题翻译：锤击工具的锤子机制
公开(公告)号：US3570608A
公开(公告)日：1971-03-16
申请号：US3570608D
申请日：1969-04-30
申请人： ATLAS COPCO AB
发明人： ERMA EERO ANTERO
IPC分类号： B25D9/08 , B25D9/10 , E21B1/16 , E21B1/34 , B25D11/06
CPC分类号： B25D9/10 , B25D9/08 , B25D11/125 , E21C3/18
摘要： This invention relates to a hammer mechanism for percussion tools provided with a hammer piston for delivering blows to a percussion implement, and further provided with a hammer element arranged movable relatively to said hammer piston, said hammer piston being stopped during the upward movement thereof by said hammer element for delivering the kinetic energy of said hammer piston to said hammer element.

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