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1. 发明公开

EP0564217A1 Power driven hammer drill 失效
标题翻译： Kraftgetriebener Bohrhammer。
公开(公告)号：EP0564217A1
公开(公告)日：1993-10-06
申请号：EP93302437.4
申请日：1993-03-29
申请人： MAKITA CORPORATION
发明人： Shibata, Mitsuyoshi , Miwa, Masao
IPC分类号： B25D17/00
CPC分类号： B25D17/00 , B25D2211/061 , B25D2222/61 , B25D2250/065 , B25D2250/191 , B25D2250/331 , B25D2250/335
摘要： An improved intermediate housing incorporated in a power driven hammer drill (1) makes the tool light in weight, easily and safely handled, and inexpensive to manufacture. The intermediate housing (4) includes a bearing member (41) and a cylindrical piston housing member (32) which are integrally composed of a synthetic resin having high tenacity and excellent heat resistance and wear resistance. The intermediate housing (4) further includes a plurality of ribs (47, 48) radially extending from the piston housing member (32) for strengthening against stress applied onto the piston housing member (32). In the intermediate housing (4) thus constructed, the bearing member (41) has at least one opening for feeding an air flow generated by a fan (70) while the piston housing member (32) includes at least one air conduit for circulating the air flow, so that overheating and thermal deformation of the piston housing member (32) and the bearing member (41) are prevented in continuous operation of the hammer drill.
摘要翻译：结合在电动锤钻（1）中的改进的中间壳体使得工具重量轻，易于安全地处理，制造成本低廉。中间壳体（4）包括由具有高强度和优异的耐热性和耐磨性的合成树脂整体构成的轴承构件（41）和圆柱形活塞壳体构件（32）。中间壳体（4）还包括从活塞壳体构件（32）径向延伸的多个肋（47,48），用于加强施加到活塞壳体构件（32）上的应力。在如此构造的中间壳体（4）中，轴承构件（41）具有用于供给由风扇（70）产生的空气流的至少一个开口，而活塞壳体构件（32）包括至少一个空气管道，空气流动，从而在锤钻的连续操作中防止活塞壳体构件（32）和轴承构件（41）的过热和热变形。

2. 发明公开

EP1422028A1 Hammer drill with a mechanism for preventing inadvertent hammer blows 有权
标题翻译： Schlagbohrer mit einem Mechanismus zum Verhinderen ungewollterSchläge
公开(公告)号：EP1422028A1
公开(公告)日：2004-05-26
申请号：EP03025020.3
申请日：2003-10-30
申请人： MAKITA CORPORATION
发明人： Shibata, Mitsuyoshi , Furusawa, Masanori , Kakiuchi, Yasuhiro
IPC分类号： B25D16/00
CPC分类号： B25D16/00 , B25D16/006 , B25D2216/0015 , B25D2216/0023 , B25D2216/0038 , B25D2216/0053 , B25D2250/191
摘要： A hammer drill (1) includes a lock plate (35) forward of a boss sleeve (13) and a swash bearing (14) which cooperates with the boss sleeve to convert the rotation of an intermediate shaft (5) on which the boss sleeve is mounted. The lock plate is mounted on the boss sleeve and selectively engages claws (23) of the boss sleeve (13) in a manner that permits its integral rotation with and axial slide with respect to the boss sleeve. The lock plate is additionally biased in the forward direction by a coil spring (38) so that when a clutch (19) is shifted forward in a drill mode, the lock plate also moves forward into engagement with a stopper (39) secured to an inner housing (4), preventing inadvertent rotation of the boss sleeve.
摘要翻译：锤钻（1）包括在凸起套筒（13）的前方的锁定板（35）和与凸起套筒配合的斜盘轴承（14），用于转换中间轴（5）的旋转，其中凸起套筒被安装。锁定板安装在凸台套筒上并选择性地接合凸台套筒（13）的爪（23），以允许其相对于凸台套筒一体旋转并且轴向滑动。锁板另外通过螺旋弹簧（38）沿向前方向偏置，使得当离合器（19）以钻孔模式向前移动时，锁定板还向前移动以与固定到内壳体（4），防止凸起套筒的意外旋转。

3. 发明授权

EP1422028B1 Hammer drill with a mechanism for preventing inadvertent hammer blows 有权
标题翻译：冲击钻，用于Verhinderen意外打击的机制
公开(公告)号：EP1422028B1
公开(公告)日：2008-06-25
申请号：EP03025020.3
申请日：2003-10-30
申请人： Makita Corporation
发明人： Shibata, Mitsuyoshi , Furusawa, Masanori , Kakiuchi, Yasuhiro
IPC分类号： B25D16/00
CPC分类号： B25D16/00 , B25D16/006 , B25D2216/0015 , B25D2216/0023 , B25D2216/0038 , B25D2216/0053 , B25D2250/191

4. 发明授权

EP0564217B1 Power driven hammer drill 失效
标题翻译：一种动力锤
公开(公告)号：EP0564217B1
公开(公告)日：1997-12-10
申请号：EP93302437.4
申请日：1993-03-29
申请人： MAKITA CORPORATION
发明人： Shibata, Mitsuyoshi , Miwa, Masao
IPC分类号： B25D17/00
CPC分类号： B25D17/00 , B25D2211/061 , B25D2222/61 , B25D2250/065 , B25D2250/191 , B25D2250/331 , B25D2250/335

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