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    Power tool having two motors
    1.
    发明公开
    Power tool having two motors 审中-公开

    公开(公告)号：US20240009822A1

    公开(公告)日：2024-01-11

    申请号：US18039558

    申请日：2021-11-16

    Applicant: Hilti Aktiengesellschaft

    Inventor： Maximilian KNYRIM ,  Michael WIERER

    IPC: B25D11/12

    CPC classification number: B25D11/125 ,  B25D2211/003 ,  B25D2250/281 ,  B25D2250/245 ,  B25D16/00

    Abstract: Power tool, in particular a hammer drill, including a housing, a tool fitting for receiving and holding a tool, an impact device for producing and transmitting impact pulses to the tool, and a rotation device for producing and transmitting a torque to the tool, wherein a working axis passing through the impact device is provided. The power tool includes a first drive unit having a first axis of rotation for driving the rotation device and a second drive unit having a second axis of rotation for driving the impact device, wherein the first and second drive units are arranged in such a way relative to one another in the housing that the first axis of rotation of the first drive unit is arranged at a first angle to the second axis of rotation of the second drive unit and at a second angle to the working axis.

    Hammer tool
    2.
    发明授权
    Hammer tool 有权

    公开(公告)号：US10052747B2

    公开(公告)日：2018-08-21

    申请号：US14425186

    申请日：2013-08-30

    Applicant: MAKITA CORPORATON

    Inventor： Yonosuke Aoki

    IPC: B25D11/00 ,  B25D11/12

    CPC classification number: B25D11/005 ,  B25D11/125 ,  B25D2211/003 ,  B25D2250/021 ,  B25D2250/245 ,  B25D2250/275

    Abstract: A hammer tool for hammering on a workpiece by a tool bit moving at least linearly in a longitudinal direction of the tool bit, configured so that a hammering element moves toward the tool bit to hits the tool bit by way of air pressure fluctuation in an air chamber when a driving element is moved from a first position to a second position. In addition, the stroke center position of the reciprocating movement of the driving element moved between the first position and the second position is configured to be changeable.

    Impact tool
    4.
    发明授权
    Impact tool 有权

    公开(公告)号：US09724814B2

    公开(公告)日：2017-08-08

    申请号：US14374508

    申请日：2012-12-07

    Applicant: MAKITA CORPORATION

    Inventor： Kiyunobu Yoshikane ,  Yoshitaka Machida ,  Shinji Onoda ,  Hitoshi Iida

    IPC: B25D11/06 ,  B25D11/00 ,  B25D17/24 ,  B25D16/00

    CPC classification number: B25D11/06 ,  B25D11/00 ,  B25D11/062 ,  B25D16/00 ,  B25D17/24 ,  B25D2211/003 ,  B25D2211/006 ,  B25D2217/0092 ,  B25D2250/095

    Abstract: An impact tool performs a processing operation on a workpiece by carrying out an impact operation on a tool bit in a longitudinal axis direction. The impact tool includes a motor having a rotor and a stator, a tool main body housing the motor, a drive shaft parallel to a longitudinal axis of the tool bit and rotatably driven by the motor, and an oscillating member that is supported by the drive shaft and that carries out an oscillating movement in the axial direction of the drive shaft based on the rotational motion of the drive shaft. A tool drive mechanism is coupled to the oscillating member so that the oscillating movement of the oscillating member linearly moves the tool bit in the longitudinal axis direction. The motor is an outer rotor motor in which the rotor is disposed on an radially outer side of the stator.

    Power tool
    5.
    发明授权
    Power tool 有权
    电动工具

    公开(公告)号：US09126320B2

    公开(公告)日：2015-09-08

    申请号：US13139910

    申请日：2009-12-08

    Applicant: Yasutoshi Shinma ,  Yasuhiro Kakiuchi

    Inventor： Yasutoshi Shinma ,  Yasuhiro Kakiuchi

    IPC: B25D9/00 ,  B25D17/20 ,  B25F5/00

    CPC classification number: B25D17/20 ,  B25D2211/003 ,  B25D2217/0061 ,  B25D2250/121 ,  B25D2250/245 ,  B25F5/008

    Abstract: A working tool in which a tip tool with a longitudinal shaft is linearly moved, wherein a motor and other tool constituting members are effectively cooled. In order to cool the inside of a motor-driven hammer comprising a main body, a motor, and a motion converter, the hammer is provided with a first cooling air passage through which a cooling air is supplied to the motor, and a second cooling air passage through which a cooling air is supplied to a hammer portion. To generate a cooling air to be supplied to the first and second cooling air passages, a cooling fan is provided at a lower portion of an output shaft of the motor and a hammer portion cooling fan is provided between the output shaft of the motor and the motion converter.

    Abstract translation: 一种工作工具，其中具有纵轴的尖端工具线性移动，其中电动机和其他工具构成构件被有效地冷却。 为了冷却包括主体，电动机和运动转换器的电动锤的内部，锤具有第一冷却空气通道，冷却空气通过该第一冷却空气通道供应到电动机，第二冷却 空气通道，冷却空气通过该通道供应到锤部。 为了产生要供应到第一和第二冷却空气通道的冷却空气，在电动机的输出轴的下部设置有冷却风扇，并且在电动机的输出轴和电动机的输出轴之间设置有锤部冷却风扇 运动转换器。

    Machine tool
    8.
    发明授权
    Machine tool 有权
    机床

    公开(公告)号：US08739895B2

    公开(公告)日：2014-06-03

    申请号：US12800896

    申请日：2010-05-25

    Applicant: Markus Hartmann ,  Alexander John

    Inventor： Markus Hartmann ,  Alexander John

    IPC: B23B45/16 ,  B25D9/00 ,  B25D11/00 ,  B25D13/00 ,  B25D16/00

    CPC classification number: B25D11/005 ,  B25D11/125 ,  B25D17/06 ,  B25D2211/003 ,  B25D2217/0023 ,  B25D2250/035 ,  B25D2250/131 ,  B25D2250/345 ,  B25D2250/365

    Abstract: The machine tool includes a pneumatic percussion mechanism having a cup-shaped exciter cylinder (21) with an inner chamber (31) which is open in the direction of impact (26), and a free piston (22) which is movable in the inner chamber (31). A recess (32) and at least one ventilation opening (35), spaced at a distance from the recess (32) in the direction of impact (26), are provided in a shell-type wall (39) of the inner chamber (31). The free piston (22) includes a sealing element (53) which seals off the at least one ventilation opening (35) when the sealing element (53) is oppositely situated from the at least one ventilation opening (35), and which in the region of the recess (32) is separated at a distance from the shell-type wall (39) when the sealing element (53) is oppositely situated from the recess.

    Abstract translation: 该机床包括气动冲击机构，该气动冲击机构具有杯形激励器气缸（21），所述杯形激励器气缸（21）具有沿着冲击方向（26）打开的内腔（31），以及可在内部移动的自由活塞 室（31）。 在内腔（26）的外壳型壁（39）中设置有一个凹槽（32）和至少一个在冲击方向（26）上与凹部（32）隔开一段距离的通风口（35） 31）。 自由活塞（22）包括密封元件（53），当密封元件（53）与至少一个通风开口（35）相对设置时，所述密封元件（53）密封所述至少一个通风开口（35） 当密封元件（53）与凹部相对设置时，凹部（32）的区域与壳型壁（39）隔开一定距离。

    Pneumatic-spring percussion mechanism with a variable rotary drive
    9.
    发明授权
    Pneumatic-spring percussion mechanism with a variable rotary drive 有权
    气动弹簧冲击机构与可变旋转驱动

    公开(公告)号：US08534376B2

    公开(公告)日：2013-09-17

    申请号：US13056148

    申请日：2009-07-28

    Applicant: Helmut Braun ,  Rudolf Berger

    Inventor： Helmut Braun ,  Rudolf Berger

    IPC: B25D9/14

    CPC classification number: B25D11/005 ,  B25D11/064 ,  B25D11/125 ,  B25D2211/003 ,  B25D2250/021 ,  B25D2250/221 ,  B25D2250/281

    Abstract: A percussion mechanism that has a motor, a drive piston which can be moved to and fro in a guide cylinder by the motor, and a percussion piston. A coupling device is active between the drive piston and the percussion piston, via which coupling device the movement of the drive piston is transmitted to the percussion piston. The motor can be configured as a reluctance motor or as a synchronous motor. The motor can be actuable in such a way that different rotational speeds of the rotor can be generated within a percussion cycle and/or from percussion cycle to percussion cycle.

    Abstract translation: 具有马达的冲击机构，可通过马达在导向缸中来回移动的驱动活塞和冲击活塞。 联动装置在驱动活塞和冲击活塞之间是有效的，通过该连接装置，驱动活塞的运动传递到冲击活塞。 电机可以配置为磁阻电机或同步电机。 电动机可以以这样的方式致动，使得可以在冲击循环和/或从敲击循环到冲击循环之间产生转子的不同旋转速度。

    Auto hammer
    10.
    发明授权
    Auto hammer 有权
    自动锤

    公开(公告)号：US08348120B2

    公开(公告)日：2013-01-08

    申请号：US12700029

    申请日：2010-02-04

    Applicant: Gan Wei

    Inventor： Gan Wei

    IPC: B25D17/00 ,  B25D11/06 ,  B25D15/02

    CPC classification number: B25D11/068 ,  B25C1/06 ,  B25C1/188 ,  B25D17/00 ,  B25D2211/003 ,  B25D2216/0015 ,  B25D2250/015 ,  B25D2250/121 ,  B25D2250/295 ,  B25F5/02 ,  B25F5/021 ,  Y10T16/44 ,  Y10T16/476

    Abstract: An auto hammer having a housing having a grip portion defining a central axis and a head assembly including a striking device which has a striking rod defining a central axis. The striking device is pivotable relative to the grip portion and the angle between the central axis of the grip and the central axis of the striking rod can range between 60° and 180°. The auto hammer thus provides a pivotable striking device and is thereby suitable for different working circumstances.

    Abstract translation: 一种具有壳体的自动锤，所述壳体具有限定中心轴线的握持部分和头部组件，所述头部组件包括具有限定中心轴线的击打杆的击打装置。 打击装置相对于把手部分是可枢转的，并且把手的中心轴线与击打杆的中心轴线之间的角度可以在60°和180°之间的范围内。 因此，自动锤因此提供可枢转的打击装置，因此适合于不同的工作环境。

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