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公开(公告)号：EP0675783A1
公开(公告)日：1995-10-11
申请号：EP94903861.0
申请日：1993-12-22
发明人： STRAUCH, Martin , HOY, Robert
IPC分类号： B25B15
CPC分类号： B25B15/002 , B25B15/005
摘要： The invention concerns a tool with structured working surfaces which transmit torque when applied to a work piece, in particular a screwdriver bit. In order to create a tool with a working surface that is optimally suited to its purpose, it is proposed that it should be designed either as a moulded part of sintered powder metal such that the roughness resulting from the grain size of the powder metal creates the optimal structure in the working surface for the transmission of torque, or alternatively should be provided with a surface with rolled nubs.
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公开(公告)号：EP0644817B1
公开(公告)日：1996-03-20
申请号：EP93912914.4
申请日：1993-06-08
发明人： AMTENBRINK, Klaus , HOY, Robert , STRAUCH, Martin
IPC分类号： B25G1/10
CPC分类号： B25G1/105
摘要： The invention relates to a plastic injection-moulded grip for tools, especially for screwdrivers, with regions of plastic material of different hardnesses, the harder one of which do not deform under the forces arising during use and the softer one permit slight elastic deformation, and a central hollow (5) for the tail of a tool blade (2). To provide a design which is easy to use and provides the best gripping, the invention proposes that the central hollow is in a core section (6) with a contoured outer surface (11) on which a jacket is injection-moulded. The recesses (8) resulting from the contouring of the outer surface (11) are filled with a softer plastic until a roughly circular cross-sectional shape is obtained.
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3.发明公开
公开(公告)号：EP0675782A1
公开(公告)日：1995-10-11
申请号：EP94903753.0
申请日：1993-12-10
发明人： STRAUCH, Martin , HOY, Robert
CPC分类号： B25B15/002 , B25B15/001 , B25B15/005 , Y10S81/90
摘要： The invention relates to a tool, especially a torque transmission tool like a screwdriver or screwdriver insert with a shaft and a working region. In order to be able advantageously to absorb torque peaks with such a tool, in the shaft there is a damping region of reduced hardness or lower torque-rod constant than the working region. To this end the damping region can be subsequently annealed or have a different material composition. The latter is preferred in a sintered metal tool.
摘要翻译： 本发明涉及一种工具，特别是具有轴和工作区域的扭力传递工具，例如螺丝刀或螺丝刀插入件。 为了能够有利地利用这种工具来吸收转矩峰值，在轴中存在比工作区域硬度降低或扭矩杆的常数更低的阻尼区域。 为此，阻尼区域可以随后退火或具有不同的材料组成。 后者在烧结金属工具中是优选的。
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公开(公告)号：EP0675782B1
公开(公告)日：1997-10-08
申请号：EP94903753.5
申请日：1993-12-10
发明人： STRAUCH, Martin , HOY, Robert
CPC分类号： B25B15/002 , B25B15/001 , B25B15/005 , Y10S81/90
摘要： The invention relates to a tool, especially a torque transmission tool like a screwdriver or screwdriver insert with a shaft and a working region. In order to be able advantageously to absorb torque peaks with such a tool, in the shaft there is a damping region of reduced hardness or lower torque-rod constant than the working region. To this end the damping region can be subsequently annealed or have a different material composition. The latter is preferred in a sintered metal tool.
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公开(公告)号：EP0644817A1
公开(公告)日：1995-03-29
申请号：EP93912914.0
申请日：1993-06-08
发明人： AMTENBRINK, Klaus , HOY, Robert , STRAUCH, Martin
IPC分类号： B25G1
CPC分类号： B25G1/105
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