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公开(公告)号：EP1894678B1
公开(公告)日：2013-05-22
申请号：EP07016946.1
申请日：2007-08-29
IPC分类号： B25B21/00 , B25B23/14 , B25B23/147
CPC分类号： B25B23/14 , B25B21/00 , B25B23/147
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公开(公告)号：EP2813325B1
公开(公告)日：2017-09-20
申请号：EP14171806.4
申请日：2014-06-10
IPC分类号： B25B21/02
CPC分类号： B25B21/02 , B25B21/026
摘要： Provided is a technique that improves the durability of a bearing mechanism such as a rolling bearing that is provided between a secondary hammer and a spindle in an impact wrench configured to firmly tighten screws by applying an impact in the rotational direction of an anvil, using a primary hammer and the secondary hammer. In the technique in which a rolling bearing 8 is used as the bearing mechanism, the inner circumference of the secondary hammer 5 is press-fitted to an outer ring 81 of the rolling bearing 8, and a gap 84 is created between the outer circumference of a spindle 3 and an inner ring 82 of the rolling bearing 8. The created gap 84 can exhibit the effect of cushioning precession rotation of the secondary hammer 5 to reduce the radial load that is applied to the rolling bearing 8, and, as a result, improve the durability of the rolling bearing 8 and extend the life of the bearing.
摘要翻译： 本发明提供一种技术，该技术提高了在冲击扳手中设置于副锤与主轴之间的滚动轴承等的轴承机构的耐久性，所述冲击扳手构造成通过在砧座的旋转方向上施加冲击来牢固地紧固螺钉， 主锤和副锤。 在使用滚动轴承8作为轴承机构的技术中，将副锤5的内周压入滚动轴承8的外圈81，在外圈81与外圈81之间形成间隙84。 主轴3和滚动轴承8的内圈82.所形成的间隙84可以表现出缓冲次级锤5的旋进旋转以减小施加到滚动轴承8的径向载荷的效果，并且结果 提高滚动轴承8的耐久性并延长轴承的使用寿命。
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公开(公告)号：EP2813325A3
公开(公告)日：2015-07-22
申请号：EP14171806.4
申请日：2014-06-10
IPC分类号： B25B21/02
CPC分类号： B25B21/02 , B25B21/026
摘要： Provided is a technique that improves the durability of a bearing mechanism such as a rolling bearing that is provided between a secondary hammer and a spindle in an impact wrench configured to firmly tighten screws by applying an impact in the rotational direction of an anvil, using a primary hammer and the secondary hammer. In the technique in which a rolling bearing 8 is used as the bearing mechanism, the inner circumference of the secondary hammer 5 is press-fitted to an outer ring 81 of the rolling bearing 8, and a gap 84 is created between the outer circumference of a spindle 3 and an inner ring 82 of the rolling bearing 8. The created gap 84 can exhibit the effect of cushioning precession rotation of the secondary hammer 5 to reduce the radial load that is applied to the rolling bearing 8, and, as a result, improve the durability of the rolling bearing 8 and extend the life of the bearing.
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公开(公告)号：EP2813325A2
公开(公告)日：2014-12-17
申请号：EP14171806.4
申请日：2014-06-10
IPC分类号： B25B21/02
CPC分类号： B25B21/02 , B25B21/026
摘要： Provided is a technique that improves the durability of a bearing mechanism such as a rolling bearing that is provided between a secondary hammer and a spindle in an impact wrench configured to firmly tighten screws by applying an impact in the rotational direction of an anvil, using a primary hammer and the secondary hammer. In the technique in which a rolling bearing 8 is used as the bearing mechanism, the inner circumference of the secondary hammer 5 is press-fitted to an outer ring 81 of the rolling bearing 8, and a gap 84 is created between the outer circumference of a spindle 3 and an inner ring 82 of the rolling bearing 8. The created gap 84 can exhibit the effect of cushioning precession rotation of the secondary hammer 5 to reduce the radial load that is applied to the rolling bearing 8, and, as a result, improve the durability of the rolling bearing 8 and extend the life of the bearing.
摘要翻译： 提供了一种技术，其提高了在冲击扳手中设置在二次锤和主轴之间的滚动轴承的轴承机构的耐久性，该冲击扳手构造成通过在砧座的旋转方向上施加冲击来牢固地拧紧螺钉，使用 主锤和次锤。 在使用滚动轴承8作为轴承机构的技术中，二次锤5的内周被压配合到滚动轴承8的外圈81，并且在外圈之间产生间隙84 滚动轴承8的主轴3和内圈82.所产生的间隙84可以表现出缓冲二次锤5的进动旋转的作用，以减小施加到滚动轴承8的径向载荷，结果 提高滚动轴承8的耐久性，延长轴承寿命。
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公开(公告)号：EP1894677B1
公开(公告)日：2014-05-07
申请号：EP07016945.3
申请日：2007-08-29
IPC分类号： B25F5/02
CPC分类号： B25B21/00 , B25B21/002 , B25F5/006 , B25F5/02
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公开(公告)号：EP2712708A2
公开(公告)日：2014-04-02
申请号：EP13184680.0
申请日：2013-09-17
CPC分类号： B25B21/026
摘要： An impact rotation tool (1) includes a switching shaft (73) (73), which extends through a drive shaft (6), and a coupling member (72), which is coupled to the switching shaft (73). The switching shaft (73) moves the coupling member (72) to a position where the coupling member (72) is engaged with the wall of only the drive shaft hole (54) to switch the impact rotation tool (1) to an impact mode. The switching shaft (73) moves the coupling member (72) to a position where the coupling member (72) is engaged with the walls of both of the drive shaft hole (54) to switch the impact rotation tool (1) to a drill mode. The wall of the drive shaft hole (54) includes an engagement portion (75), which is engaged with the coupling member (72) in the impact mode, and a relief (76), which does not contact the outer circumferential surface of the coupling member (72) in the impact mode.
摘要翻译： 冲击旋转工具（1）包括延伸穿过驱动轴（6）的切换轴（73）和连接到切换轴（73）的联接构件（72）。 切换轴（73）将联接构件（72）移动到联接构件（72）仅与驱动轴孔（54）的壁接合的位置，以将冲击旋转工具（1）切换到冲击模式 。 切换轴（73）将联接构件（72）移动到联接构件（72）与驱动轴孔（54）的壁接合的位置，以将冲击旋转工具（1）切换到钻头 模式。 驱动轴孔（54）的壁包括在冲击模式下与联接构件（72）接合的接合部分（75）和不接触冲击模式的外周表面的凸起（76） 联接构件（72）处于冲击模式。
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