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公开(公告)号：EP1387907A1
公开(公告)日：2004-02-11
申请号：EP02726289.8
申请日：2002-05-10
申请人： BACA Limited
发明人： CAMPLING, Barry
IPC分类号： E02D7/06
CPC分类号： E02D7/06
摘要： A power tool (1) has a percussive driving means for driving an impact tool (8). The driving means, which may be hydraulic or pneumatic, retracts the impact tool (8) on its return stroke, against the force developed by heavy-duty elastic ropes (24). During the impact stroke the impact tool (8) is urged downwardly by the elastic ropes and, if the tool is upright, by gravity. At the start of the impact stroke the ram (10) is uncoupled by means of a ball clutch. At the beginning of the return stroke the ball clutch acts to couple the ram once again to the weight (20) and impact tool (8), in order to lift these to the retracted position. It will be appreciated that the uncoupling of the ram for the impact stroke reduces the loss arising from the resistance of the ram.
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公开(公告)号：EP1387907B1
公开(公告)日：2006-11-08
申请号：EP02726289.8
申请日：2002-05-10
申请人： BACA Limited
发明人： CAMPLING, Barry
IPC分类号： E02D7/06
CPC分类号： E02D7/06
摘要： A power tool (1) has a percussive driving means for driving an impact tool (8). The driving means, which may be hydraulic or pneumatic, retracts the impact tool (8) on its return stroke, against the force developed by heavy-duty elastic ropes (24). During the impact stroke the impact tool (8) is urged downwardly by the elastic ropes and, if the tool is upright, by gravity. At the start of the impact stroke the ram (10) is uncoupled by means of a ball clutch. At the beginning of the return stroke the ball clutch acts to couple the ram once again to the weight (20) and impact tool (8), in order to lift these to the retracted position. It will be appreciated that the uncoupling of the ram for the impact stroke reduces the loss arising from the resistance of the ram.
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公开(公告)号：EP0916770A3
公开(公告)日：2004-04-21
申请号：EP99103047.9
申请日：1994-07-08
申请人： BACA Limited
摘要： An extensible length (5) of material formed from a natural or synthetic elastic polymeric material, has means (56) for securing the length of material to an article, said securing means being located at or adjacent a free end of the length of material, wherein the securing means comprises an end cap (55) secured to the polymeric material. Suitably the elastic polymeric material is formed from strands, and undergoes strain crystallisation. A radial compressive force is applied to the length of material adjacent its end by a compressive sleeve member (51).
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