公开(公告)号：US12122029B2

公开(公告)日：2024-10-22

申请号：US17695965

申请日：2022-03-16

申请人： MAKITA CORPORATION

发明人： Takeshi Kamiya

IPC分类号： B25D16/00 ,  B25B21/02

CPC分类号： B25D16/006 ,  B25B21/023 ,  B25B21/026 ,  B25D16/003 ,  B25D2211/064 ,  B25D2211/067 ,  B25D2216/0023

摘要： A reducer appropriately selects from three or more variable speeds to match multiple operational modes. An impact driver includes a motor, a reducer that reduces rotation from the motor to select from three or more variable speeds, a plurality of actuators to be actuated by the rotation reduced by the reducer, and a switcher that selects, from the plurality of actuators, a specific actuator to be actuated in a predetermined operational mode. The switcher causes the reducer to cooperate with the selected specific actuator and actuates the reducer at a predetermined variable speed of the three of more variable speeds corresponding to the predetermined operational mode of the selected specific actuator.

公开(公告)号：US08555998B2

公开(公告)日：2013-10-15

申请号：US13339905

申请日：2011-12-29

申请人： James D. Schroeder ,  Dennis A. Bush ,  Paul K. Trautner

发明人： James D. Schroeder ,  Dennis A. Bush ,  Paul K. Trautner

IPC分类号： B23B45/16

CPC分类号： B25D16/006 ,  B25D2211/064 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2216/0084 ,  B25D2250/045 ,  B25D2250/255 ,  B25D2250/351

摘要： A drill includes a housing and a motor coupled to an output member by a transmission. The transmission can selectively couple the output member to an output spindle through a low speed output gear or a high speed output gear for rotating the output spindle at a first speed or a second speed, respectively. Alternatively or additionally, a low speed mode can be provided by actuating an electronic switch that limits the speed of the motor. A rotatably fixed hammer member and a rotatable hammer member can be mounted around the output spindle. A mode collar can be rotatably mounted on the housing and around the output member for movement to positions that correspond to various mode of operation, including a low speed mode, a high speed mode, and a hammer-drilling mode. In the hammer-drilling mode, the transmission operates in the high speed mode.

摘要翻译： 钻头包括通过变速器联接到输出构件的壳体和马达。 变速箱可以通过低速输出齿轮或高速输出齿轮选择性地将输出构件耦合到输出主轴，用于分别以第一速度或第二速度旋转输出主轴。 或者或另外，可以通过致动限制电动机的速度的电子开关来提供低速模式。 可旋转固定的锤构件和可旋转的锤构件可以安装在输出主轴周围。 模式套环可以可旋转地安装在壳体上并且围绕输出构件移动到对应于各种操作模式的位置，包括低速模式，高速模式和锤钻模式。 在锤钻模式下，变速器以高速模式运转。

公开(公告)号：US08464805B2

公开(公告)日：2013-06-18

申请号：US12922582

申请日：2008-11-19

申请人： Otto Baumann ,  Hardy Schmid ,  Tobias Herr

发明人： Otto Baumann ,  Hardy Schmid ,  Tobias Herr

IPC分类号： B25D11/10 ,  B25D17/00

CPC分类号： B25D17/24 ,  B25D11/062 ,  B25D2211/061 ,  B25D2211/064 ,  B25D2211/068 ,  B25D2217/0088 ,  B25D2250/045 ,  B25D2250/175

摘要： The invention relates to a hand-held power tool for predominantly percussively driven tool attachments, in particular hammer drills and/or chisel-action hammers. The power tool includes a percussion axis and an intermediate shaft that is parallel to the percussion axis in which a first stroke generating device having a first stroke element for a percussion drive is arranged in or on the intermediate shaft and can be driven by the intermediate shaft. Additionally, at least one other second stroke generating device having at least one second stroke element is provided for driving a counter oscillator. A phase displacement that is different from zero and that is unequal to 180° takes place between a movement of the first stroke element and a movement of at least one second stroke element.

摘要翻译： 本发明涉及用于主要是冲击式驱动的工具附件的手持式电动工具，特别是锤式钻头和/或凿子动作锤。 电动工具包括冲击轴线和平行于冲击轴线的中间轴，其中具有用于冲击驱动器的第一冲程元件的第一冲程发生装置布置在中间轴中或中间轴上，并且可由中间轴 。 另外，提供至少一个具有至少一个第二冲程元件的第二冲程发生装置用于驱动计数器振荡器。 在第一冲程元件的运动和至少一个第二冲程元件的运动之间发生不同于零并且不等于180°的相位移位。

公开(公告)号：US07854274B2

公开(公告)日：2010-12-21

申请号：US11986688

申请日：2007-11-21

申请人： Paul K. Trautner ,  Dennis A. Bush

发明人： Paul K. Trautner ,  Dennis A. Bush

IPC分类号： B25D17/00

CPC分类号： B25D16/006 ,  B25D2211/064 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2216/0084 ,  B25D2250/045 ,  B25D2250/351

摘要： A multi-mode drill can include a transmission to transfer torque from an output member of a motor to an output spindle. A transmission housing encloses the transmission in an interior cavity formed by a gear case shell and a cover plate. The cover plate can be coupled to the outer shell via screws. A static shift rod can be supported at one end by the cover plate. A shift bracket can be mounted on the shift rod and biased to a mode position by a biasing member exerting a force between the shift bracket and the cover plate. A shift pin can be supported adjacent one end by the cover plate and biased to a mode position by a biasing member exerting a force between the shift pin and the cover plate. A spindle biasing member can bias the output spindle against the cover plate. The shift pin can actuate an electronic switch. A motor housing can be coupled to the transmission housing with fasteners so that the cover fasteners are not accessible.

摘要翻译： 多模式钻机可以包括用于将扭矩从马达的输出构件传递到输出主轴的传动装置。 变速器壳体将变速器包围在由齿轮箱壳体和盖板形成的内部空腔中。 盖板可以通过螺钉联接到外壳。 一个静止换挡杆可以通过盖板一端支撑。 换档支架可以安装在换档杆上，并通过在换档支架和盖板之间施加力的偏置构件偏压到模式位置。 换挡销可以通过盖板邻近一端支撑，并通过在换档销和盖板之间施加力的偏置构件偏压到模式位置。 主轴偏置构件可将输出主轴偏置抵靠盖板。 换档销可以启动电子开关。 马达壳体可以用紧固件联接到变速器壳体，使得盖紧固件不可接近。

公开(公告)号：US07658238B2

公开(公告)日：2010-02-09

申请号：US10912106

申请日：2004-08-06

申请人： Jyunichi Toukairin ,  Kenji Kataoka ,  Kazuhide Ohzeki ,  Takuma Saito ,  Shinki Ohtsu ,  Shigeru Ishikawa ,  Hideki Watanabe

发明人： Jyunichi Toukairin ,  Kenji Kataoka ,  Kazuhide Ohzeki ,  Takuma Saito ,  Shinki Ohtsu ,  Shigeru Ishikawa ,  Hideki Watanabe

IPC分类号： B25D11/10

CPC分类号： B25D17/24 ,  B25D2211/064

摘要： An impact drill for boring a workpiece includes a main frame, a motor housed in the main frame, a spindle movably supported by the main frame and rotatable by the motor and movable in its axial direction, a first ratchet positioned fixedly with respect to the spindle, a second ratchet positioned with respect to the first ratchet, a spring biasing the second ratchet toward the first ratchet. The spring has at least one of a spring constant and a biasing force which prevents the second ratchet and the spindle from abutting against the main frame at least one of when a force ranging from 15 to 25 kg is applied to the main frame for boring the workpiece and when the spindle is moved to a retracted position.

摘要翻译： 用于钻孔工件的冲击钻具包括主框架，容纳在主框架中的马达，由主框架可移动地支撑并可由马达旋转并可沿其轴向移动的主轴，相对于主轴固定的第一棘轮 相对于第一棘轮定位的第二棘轮，将第二棘轮朝向第一棘轮偏置的弹簧。 弹簧具有弹簧常数和偏置力中的至少一个，其防止第二棘轮和心轴抵靠主框架，当将15至25kg的力施加到主框架上时，至少一个将砧座 当主轴移动到缩回位置时。

公开(公告)号：US20090126958A1

公开(公告)日：2009-05-21

申请号：US11986688

申请日：2007-11-21

申请人： Paul K. Trautner ,  Dennis A. Bush

发明人： Paul K. Trautner ,  Dennis A. Bush

IPC分类号： B25D17/00

CPC分类号： B25D16/006 ,  B25D2211/064 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2216/0084 ,  B25D2250/045 ,  B25D2250/351

摘要： A multi-mode drill can include a transmission to transfer torque from an output member of a motor to an output spindle. A transmission housing encloses the transmission in an interior cavity formed by a gear case shell and a cover plate. The cover plate can be coupled to the outer shell via screws. A static shift rod can be supported at one end by the cover plate. A shift bracket can be mounted on the shift rod and biased to a mode position by a biasing member exerting a force between the shift bracket and the cover plate. A shift pin can be supported adjacent one end by the cover plate and biased to a mode position by a biasing member exerting a force between the shift pin and the cover plate. A spindle biasing member can bias the output spindle against the cover plate. The shift pin can actuate an electronic switch. A motor housing can be coupled to the transmission housing with fasteners so that the cover fasteners are not accessible.

摘要翻译： 多模式钻机可以包括用于将扭矩从马达的输出构件传递到输出主轴的传动装置。 变速器壳体将变速器包围在由齿轮箱壳体和盖板形成的内部空腔中。 盖板可以通过螺钉联接到外壳。 一个静止换挡杆可以通过盖板一端支撑。 换档支架可以安装在换档杆上，并通过在换档支架和盖板之间施加力的偏置构件偏压到模式位置。 换挡销可以通过盖板邻近一端支撑，并通过在换档销和盖板之间施加力的偏置构件偏压到模式位置。 主轴偏置构件可将输出主轴偏置抵靠盖板。 换档销可以启动电子开关。 马达壳体可以用紧固件联接到变速器壳体，使得盖紧固件不可接近。

公开(公告)号：US06988562B2

公开(公告)日：2006-01-24

申请号：US10415568

申请日：2002-06-26

申请人： Joachim Hecht

发明人： Joachim Hecht

IPC分类号： E02D7/14

CPC分类号： B25D11/005 ,  B25D11/108 ,  B25D16/00 ,  B25D2211/064 ,  B25D2217/0015

摘要： The invention is based on a hand power tool, having a drive shaft (12, 14) supported in the housing (10) and having a mechanical percussion mechanism (16, 18, 20, 22, 24), which has a striker (26, 28) that is driven in hammering fashion via a driver unit (32, 34) supported on an intermediate shaft (30), which driver unit has at least one curve element (36, 38) by way of which at least one transmission unit (40, 42, 44, 46) with a tracer member is movable.It is proposed that the curve element (36, 38) has at least one first and at least one second curved path segment (56, 58, 60, 62), the first curved path segment acting in a first axial direction of the intermediate shaft (30) and the second curved path segment acting in a second axial direction of the intermediate shaft (30).

摘要翻译： 本发明基于一种手动工具，其具有支撑在壳体（10）中的驱动轴（12,14），并且具有机械敲击机构（16,18,20,22,24），该机械敲击机构具有撞针（26） ，28），其经由支撑在中间轴（30）上的驱动器单元（32,34）以锤击方式驱动，所述驱动器单元具有至少一个弯曲元件（36,38），通过所述至少一个传动单元 （40,42,44,46）具有跟踪构件是可移动的。 提出了曲线元件（36,38）具有至少一个第一和至少一个第二弯曲路径段（56,58,60,62），第一弯曲路径段作用在中间轴的第一轴向方向上 （30）和所述第二弯曲路径段作用在所述中间轴（30）的第二轴向方向上。

公开(公告)号：US20050028995A1

公开(公告)日：2005-02-10

申请号：US10912098

申请日：2004-08-06

申请人： Takuma Saito ,  Shinki Ohtsu ,  Jyunichi Toukairin ,  Kenji Kataoka ,  Kazuhide Ohzeki ,  Shigeru Ishikawa ,  Hideki Watanabe

发明人： Takuma Saito ,  Shinki Ohtsu ,  Jyunichi Toukairin ,  Kenji Kataoka ,  Kazuhide Ohzeki ,  Shigeru Ishikawa ,  Hideki Watanabe

IPC分类号： B23B45/16 ,  B25D17/24 ,  B25F5/00 ,  B25D15/00

CPC分类号： B25D17/24 ,  B25D2211/064 ,  B25F5/001

摘要： An impact drill minimizing transmission of vibration to a handle gripped by a user's hand. A spindle extends through a main frame and is movable in its axial direction and rotatable about its axis. A first ratchet is rotatable and axially movable together with the spindle. A second ratchet is axially movable but unortatable. The first ratchet has a first serrated surface and the second ratchet has a second serrated surface in confrontation with the first serrated surface. In an impact drilling mode, the first serrated surfaces is brought into abutment with the second serrated surface so that the spindle is reciprocally moved in the axial direction. A first spring is interposed between the main frame and the second ratchet to urge the second ratchet toward the first ratchet. A second spring is interposed between the main frame and the second ratchet to urge the second ratchet away from the first ratchet. In the impact drilling mode, the second ratchet is always out of contact from the main frame and is floatingly maintained within the main frame.

摘要翻译： 冲击钻最小化由用户的手握住的手柄的振动传播。 主轴延伸穿过主框架并且可以在其轴向方向上移动并且可围绕其轴线旋转。 第一棘轮可旋转并与主轴一起轴向移动。 第二棘轮是可轴向移动的，但不可调节。 第一棘轮具有第一锯齿状表面，第二棘轮具有与第一锯齿状表面对置的第二锯齿状表面。 在冲击钻削模式中，第一锯齿状表面与第二锯齿状表面邻接，使得主轴沿轴向往复运动。 第一弹簧设置在主框架和第二棘轮之间，以将第二棘轮推向第一棘轮。 第二弹簧设置在主框架和第二棘轮之间，以将第二棘轮推离第一棘轮。 在冲击钻削模式中，第二棘轮总是与主框架脱离接触，并且浮动地保持在主框架内。

公开(公告)号：US06684964B2

公开(公告)日：2004-02-03

申请号：US10173436

申请日：2002-06-18

申请人： Bob B. Ha

发明人： Bob B. Ha

IPC分类号： B25D1100

CPC分类号： B25D16/00 ,  B25D2211/064 ,  B25D2250/025

摘要： A hammer drill with rolling contact at the contact surfaces for transmission of axial force between a drive shaft and hammer shaft. In the case of ball bearings, point contact is obtained. In the case of roller bearings, 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： 一种在接触表面滚动接触的锤钻，用于在驱动轴和锤轴之间传递轴向力。 在球轴承的情况下，获得点接触。 在滚子轴承的情况下，获得线接触。 因此，接触面积接近于零，与使用齿形表面的接合系统中相对较大的区域相反。 点或线接触的使用减少了发热，并减少了由于摩擦而导致的能量损失。

公开(公告)号：US4098351A

公开(公告)日：1978-07-04

申请号：US820284

申请日：1977-07-29

申请人： Lorenzo Ercole Alessio

发明人： Lorenzo Ercole Alessio

IPC分类号： B25B21/02 ,  B23B45/16 ,  B25D9/26 ,  B25D11/00 ,  B25D11/06 ,  B25D16/00 ,  B23Q5/027

CPC分类号： B25D11/005 ,  B25D16/00 ,  B25D2211/064 ,  Y10T74/18304

摘要： A hammer tool such as a rotary hammer, hammer drill or the like includes a motor housing and a gear case secured to the motor housing forwardly of the motor housing. A motor in the motor housing has a shaft projecting into the gear case and a pinion formed on the end of the motor shaft. A first set of ratcheting teeth is formed on a body rotatably journaled in the gear case. An output spindle for holding a tool bit is provided and has a longitudinal axis. The output spindle is rotatably journalled in the gear case so as to be also slideable in the direction of said longitudinal axis. A second set of ratcheting teeth is mounted on the output spindle so as to be in confronting relation to the first set of ratcheting teeth. A spring provides a resilient force for holding the first and second sets of ratcheting teeth in spaced apart relation to each other. A gear transmission is operatively connected to the pinion for simultaneously rotating the first set of ratcheting teeth at a predetermined first angular velocity and for rotating the second set of ratcheting teeth at a predetermined second angular velocity whereby one of the sets of ratcheting teeth ratchets over the other one of the sets of ratcheting teeth thereby imparting longitudinal impact blows to the output spindle when the first set of ratcheting teeth and the second set of ratcheting teeth mutually engage in response to an axial movement of the output spindle caused by the tool being pressed toward a work surface against the resilient force developed by the spring.

摘要翻译： 诸如旋转锤，锤钻等锤式工具包括电动机壳体和齿轮箱，其在电动机壳体的前方固定到电动机壳体。 电动机壳体中的电动机具有突出到齿轮箱中的轴和形成在电动机轴的端部上的小齿轮。 第一组棘轮齿形成在可旋转地轴承在齿轮箱中的主体上。 提供用于保持工具头的输出主轴并具有纵向轴线。 输出主轴可旋转地安装在齿轮箱中，以便也能够沿所述纵向轴线的方向滑动。 第二组棘轮齿安装在输出主轴上，以便与第一组棘轮齿相对。 弹簧提供弹性力，用于将第一组和第二组棘齿保持彼此间隔开。 齿轮传动装置可操作地连接到小齿轮，用于以预定的第一角速度同时旋转第一组棘轮齿，并且以预定的第二角速度旋转第二组棘轮齿，由此棘轮齿中的一组棘齿 当第一组棘轮齿和第二组棘轮齿响应于由工具被压向的输出主轴的轴向运动而相互啮合时，这组棘轮齿中的另一组从而对输出轴施加纵向冲击冲击 抵抗由弹簧产生的弹力的工作表面。