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公开(公告)号:EP3250344A1
公开(公告)日:2017-12-06
申请号:EP15820867.8
申请日:2015-12-30
申请人: Robert Bosch GmbH
发明人: YEOH, Sim Teik , LAM, Chian Wah
IPC分类号: B25B21/02 , B25B23/147
CPC分类号: B25B23/147 , B25B21/026 , B25D11/104 , B25D16/003 , B25D2211/065 , B25D2217/0003
摘要: The invention relates to a percussion mechanism device, in particular for an impact wrench (10), comprising a drivable driveshaft (12) which has at least one guide groove (14, 16); an output shaft (18); and a percussion unit (20) which comprises an anvil (22) that is rotationally fixed to the output shaft (18), a hammer (24), and at least one ball (26, 28). The hammer (24) is mounted on the driveshaft (12) along the at least one guide groove (14, 16) via the at least one ball (26, 28). The hammer (24) comprises a spherical guide surface (44) which is concave at least in some regions and which has an axial distance (48) from the at least one ball (26, 28) at a radially innermost point, said distance being greater than a radial distance (50) between the at least one ball (26, 28) and a radially innermost point of a concave spherical guide surface (52) of the at least one guide groove (14, 16).
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公开(公告)号:EP2803447A1
公开(公告)日:2014-11-19
申请号:EP14161634.2
申请日:2014-03-26
申请人: ROBERT BOSCH GMBH
发明人: Herr, Tobias
CPC分类号: B25D16/00 , B25D11/02 , B25D11/104 , B25D16/003 , B25D17/00 , B25D17/06 , B25D2216/0023 , B25D2216/0038 , B25D2250/165 , B25D2250/371
摘要: Die Erfindung geht aus von einer Handwerkzeugvorrichtung mit einer Werkzeugspindel (40) und einem Schlagwerk (22), das einen Schläger (58) und zumindest eine Kurvenführung (72) aufweist, die zumindest bei einem Schlagbohrbetrieb den Schläger (58) antreibt.
Es wird vorgeschlagen, dass die Werkzeugspindel (40) zumindest eine Lagerfläche (68) aufweist, die in zumindest einem Betriebszustand den Schläger (58) bewegbar lagert.摘要翻译: 本发明涉及一种手持式工具装置具有工具主轴(40)和具有撞针(58)和至少一个凸轮导向装置(72),其驱动至少所述桨(58)用于冲击钻井冲击机构(22)。 它建议,所述工具主轴(40)的至少一个支承表面(68),其可移动地支撑在至少一个操作条件的球拍(58)。
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公开(公告)号:EP0712461A4
公开(公告)日:1997-04-23
申请号:EP94922481
申请日:1994-07-29
申请人: DERIO MED INSTR LTD
发明人: SHER ARIEH
IPC分类号: F16H25/12 , A61B17/00 , A61B17/22 , A61B17/32 , A61M1/00 , B08B9/04 , B25B21/00 , B25D9/02 , B25D9/12 , B25F5/00 , E21B4/18 , E21B4/20 , E21B6/00 , E21B37/00 , F01B3/00 , F01B3/04
CPC分类号: F01B3/04 , A61B17/320758 , A61B2017/00539 , A61B2017/22038 , A61B2017/32113 , A61B2217/005 , B08B9/0436 , B25B21/00 , B25D9/02 , B25D9/125 , B25D11/102 , B25D11/104 , B25D16/00 , B25D2216/0023 , B25F5/00 , B25F5/001 , B25F5/005 , E21B4/18 , E21B4/20 , E21B6/00 , E21B37/00 , F01B3/0079 , F15B15/063 , F15B15/068 , Y10T74/1531
摘要: A driving mechanism transforms continuous longitudinal reciprocation of a piston (3) in a chamber (2) into unidirectional rotation. The mechanism utilizes a closed wave-shaped groove (8) defined in either the cylinder (1) or chamber (2) and adapted to receive guiding members (9) projecting from the other of the piston (3) and chamnber (2). When the piston (3) is forced to move longitudinally in either direction, the groove (8) slides over the guiding members to force rotation. The apices (13) of the wave-shaped groove (8) are either contoured or provided with a gating structure (21) to assure that the guide members do not backtrack but instead move in one direction through the groove (8).
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公开(公告)号:EP3251799A1
公开(公告)日:2017-12-06
申请号:EP16743066.9
申请日:2016-01-08
IPC分类号: B25B21/02
CPC分类号: B25B21/02 , B25D11/04 , B25D11/104
摘要: In order to provide an impact tool which is capable of increasing a striking force in a rotational direction of being applied from a hammer to an anvil, the impact tool includes: an electric motor; an anvil (27) which supports a work tool and is driven by the electric motor; and a hammer (43) which applies the striking force in the rotational direction to the anvil (27). The impact tool is provided with: a spindle (40) which is arranged to be concentric with the anvil (27), supports the hammer (43) to be movable in an axial direction and the rotational direction with respect to the anvil (27), and transmits motive power of the electric motor to the anvil (27); and a control unit which controls rotation speed of the electric motor. The number of strokes of the anvil (27) due to one rotation of the hammer (43) differs in response to rotation speed of the electric motor.
摘要翻译: 为了提供能够增加从锤到砧的旋转方向上的打击力的冲击工具,冲击工具包括:电动机; 砧座(27),其支撑作业工具并由电动机驱动; 以及沿着旋转方向向砧座(27)施加打击力的锤(43)。 该冲击工具具备:与砧座(27)同心配置的主轴(40),将锤(43)支承为能够相对于砧座(27)沿轴向和旋转方向移动, 并将电动机的动力传递给砧座(27)。 以及控制电动机的转速的控制单元。 由于锤(43)的一次旋转而引起的砧座(27)的冲程次数根据电动机的旋转速度而不同。
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公开(公告)号:EP2576145A1
公开(公告)日:2013-04-10
申请号:EP11721277.9
申请日:2011-05-12
申请人: Robert Bosch GmbH
CPC分类号: B25B21/02 , B25B21/026 , B25D11/104 , B25D17/11 , B25D17/24 , B25D2216/0023 , B25D2250/241
摘要: In a portable power tool (100) with a mechanical percussion mechanism (122) which is provided for percussive driving of an insertable tool (140) and has a percussion body (225), which is acted upon in the direction of the insertable tool (140) by a compression spring (228) and is connected to an associated drive shaft (120) for conjoint rotation and is mounted in an axially displaceable manner on the drive shaft (120), wherein the compression spring (228) bears at the end (227) thereof which faces away from the percussion body (225) against a washer (240), the washer (240) is mounted in an axially displaceable and rotatable manner on the drive shaft (120).
摘要翻译: 在具有机械冲击机构(122)的便携式电动工具(100)中,该机械冲击机构设置用于可插入式工具(140)的冲击式驱动并具有冲击体(225),该冲击体沿着可插入式工具 140)通过压缩弹簧(228)连接并且与相关联的驱动轴(120)连接以用于共同旋转并且以可轴向移位的方式安装在驱动轴(120)上,其中压缩弹簧(228) (225)抵靠垫圈(240)背离冲击体(225)的垫圈(227),垫圈(240)以可轴向移动且可旋转的方式安装在驱动轴(120)上。
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公开(公告)号:EP0712461A1
公开(公告)日:1996-05-22
申请号:EP94922481.0
申请日:1994-07-29
发明人: Sher, Arieh
CPC分类号: F01B3/04 , A61B17/320758 , A61B2017/00539 , A61B2017/22038 , A61B2017/32113 , A61B2217/005 , B08B9/0436 , B25B21/00 , B25D9/02 , B25D9/125 , B25D11/102 , B25D11/104 , B25D16/00 , B25D2216/0023 , B25F5/00 , B25F5/001 , B25F5/005 , E21B4/18 , E21B4/20 , E21B6/00 , E21B37/00 , F01B3/0079 , F15B15/063 , F15B15/068 , Y10T74/1531
摘要: A driving mechanism transforms continuous longitudinal reciprocation of a piston (3) in a chamber (2) into unidirectional rotation. The mechanism utilizes a closed wave-shaped groove (8) defined in either the cylinder (1) or chamber (2) and adapted to receive guiding members (9) projecting from the other of the piston (3) and chamnber (2). When the piston (3) is forced to move longitudinally in either direction, the groove (8) slides over the guiding members to force rotation. The apices (13) of the wave-shaped groove (8) are either contoured or provided with a gating structure (21) to assure that the guide members do not backtrack but instead move in one direction through the groove (8).
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公开(公告)号:EP3271115A1
公开(公告)日:2018-01-24
申请号:EP16707048.1
申请日:2016-02-24
申请人: Robert Bosch GmbH
发明人: TEH, Cheu Chyong
IPC分类号: B25B21/02
CPC分类号: B25B21/02 , B25B21/026 , B25D11/04 , B25D11/104
摘要: The invention relates to a hand-held power tool (100) with a mechanical percussion mechanism (200), comprising an input shaft (120) for rotationally driving a percussion element (300) associated with the mechanical percussion mechanism (200). According to the invention, at least one V-shaped guide groove is provided on the outer circumference of the input shaft (120), the base lines thereof converging in a connection section being at least partially concave-polygonal.
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公开(公告)号:EP2612732A1
公开(公告)日:2013-07-10
申请号:EP12195446.5
申请日:2012-12-04
申请人: ROBERT BOSCH GMBH
发明人: Herr, Tobias
CPC分类号: B25D16/00 , B25B21/02 , B25D11/104 , B25D17/06 , B25D2216/0092 , B25D2217/0023 , B25D2250/391
摘要: Die Erfindung geht aus von einer Handwerkzeugvorrichtung mit einer Werkzeugführungseinheit (20a), die eine Werkzeugspindel (38a) und ein Werkzeugfutter (36a) aufweist, und einem Schlagwerk (22a; 22b; 22c), das einen Schläger (44a) aufweist, der in zumindest einem Betriebszustand die Werkzeugführungseinheit (20a) schlagend antreibt.
Es wird vorgeschlagen, dass eine Masse des Schlägers (44a) maximal zwei Drittel so groß ist wie eine Masse der Werkzeugführungseinheit (20a).摘要翻译: 手动工具装置(12a)具有设置有工具主轴和工具卡盘(36a)的工具引导单元(20a)。 夯锤部分(22a)设置有球拍部分。 球拍部分被定位成在操作状态下驱动工具引导单元。 球拍部分的质量最大为刀具引导单元的质量的三分之二。 工具主轴由球拍部分包围。
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公开(公告)号:EP1690642B1
公开(公告)日:2011-03-09
申请号:EP06100847.0
申请日:2006-01-25
申请人: Black & Decker Inc.
发明人: Stirm, Michael , Hahn, Norbert , Staas, Ernst , Bernhart, Ralf , Buchholz, Achim
CPC分类号: B25D11/104 , B25D16/006 , B25D2211/065 , B25D2216/0015 , B25D2216/0023 , B25D2216/0038 , B25D2217/0019 , B25D2217/0023 , B25D2250/371
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公开(公告)号:EP1614507A3
公开(公告)日:2009-03-25
申请号:EP05012334.8
申请日:2005-06-08
申请人: Bob B. Ha
发明人: Bob B. Ha
CPC分类号: B25D11/104 , B25D17/005 , B25D2211/064
摘要: A hammer drill with rolling contact at the contact surfaces for transmission of axial force between a drive shaft (18) and wave race (42). By using roller bearings (38), line contact is obtained. The area of contact is thus close to zero as opposed to a relatively large area in engagement systems using toothed surfaces. Use of point or line contact reduces heat generation and reduces energy loss due to friction.
摘要翻译: 在接触表面处具有滚动接触的锤钻,用于在驱动轴(18)和波形座圈(42)之间传递轴向力。 通过使用滚柱轴承(38),获得线路接触。 因此接触面积接近于零,而与使用齿形表面的接合系统中的相对较大面积相反。 使用点或线接触可减少热量产生并减少因摩擦导致的能量损失。
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