发明名称 Motor-driven hammer drill
摘要 <p>The drilling hammer has a percussion and rotary drive disposed in a housing. A drill sleeve (14) is disposed in the housing and cooperates with the percussion and rotary drive, and with a tool or chuck for receiving the tool. A spring (32) connected to an outer periphery of the drill sleeve has an elastomeric material (34) with a wall thickness of 1-10 millimeter. A damping mass is held by the spring for deflection of the damping mass relative to the drill sleeve in a peripheral and longitudinal direction of the drill sleeve due to an elasticity of the spring.</p>
申请公布号 EP1787761(A1) 申请公布日期 2007.05.23
申请号 EP20050024979 申请日期 2005.11.16
申请人 METABOWERKE GMBH 发明人 KELLER, MICHAEL
分类号 B25D17/24 主分类号 B25D17/24
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