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    Hammer drill
    3.
    发明授权
    Hammer drill 有权

    公开(公告)号：US09925653B2

    公开(公告)日：2018-03-27

    申请号：US14317985

    申请日：2014-06-27

    Applicant: Black & Decker Inc.

    Inventor： Ernst Staas ,  Stefan Gensmann ,  Achim Buchholz

    IPC: B25D16/00 ,  B25D11/12

    CPC classification number: B25D16/006 ,  B25D11/12 ,  B25D16/00 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2250/051

    Abstract: A hammer drill comprises a motor including an output shaft, a shaft assembly rotationally engaged therewith, a hollow spindle, and a hammer mechanism comprising a piston arranged for reciprocating motion within the spindle. The shaft assembly comprises a first part carrying a first gear engaged with a gear on the spindle to cause spindle rotation, a second part carrying a crank member to cause piston reciprocation, and a connecting part configured to rotationally interconnect, or disconnect, the first and second parts. In a first position of the connecting part only one of the first and second parts is rotationally engaged with the output shaft to enable rotation of only one of the first gear and the crank member respectively, while in a second position both the first and second parts are rotationally engaged with the output shaft to enable rotation of both the first gear and the crank member.

    Reciprocating electric tool
    4.
    发明授权
    Reciprocating electric tool 有权
    往复电动工具

    公开(公告)号：US08922141B2

    公开(公告)日：2014-12-30

    申请号：US13143077

    申请日：2010-01-20

    Applicant: Mizuho Nakamura ,  Kimitaka Abo ,  Teruo Imai

    Inventor： Mizuho Nakamura ,  Kimitaka Abo ,  Teruo Imai

    IPC: H02P1/00 ,  B23D51/16 ,  B23Q5/027 ,  B25D11/00 ,  B25D11/12

    CPC classification number: B23D51/16 ,  B23Q5/027 ,  B25D11/005 ,  B25D11/12

    Abstract: The invention provides a reciprocating electric tool (1) having a brushless motor (3), a plunger (52), and control means (6). The plunger (52) is driven by the brushless motor and reciprocating between two dead centers. A end bit (7) is mounted to one end of the plunger in a reciprocating direction. The control means (6) controls a rotational speed of the brushless motor based on a position of the plunger.

    Abstract translation: 本发明提供一种具有无刷电机（3），柱塞（52）和控制装置（6）的往复式电动工具（1）。 柱塞（52）由无刷电机驱动并在两个死点之间往复运动。 端头（7）沿往复方向安装到柱塞的一端。 控制装置（6）基于柱塞的位置来控制无刷电动机的转速。

    Tool assembly apparatus having a recessed tip and a method for its use
    5.
    发明授权
    Tool assembly apparatus having a recessed tip and a method for its use 有权
    具有凹头的工具组装装置及其使用方法

    公开(公告)号：US07921569B2

    公开(公告)日：2011-04-12

    申请号：US11840662

    申请日：2007-08-17

    Applicant: David A. Cziraky ,  Douglas F. Melville, Jr. ,  Paul Boxmeyer

    Inventor： David A. Cziraky ,  Douglas F. Melville, Jr. ,  Paul Boxmeyer

    IPC: B26F1/00

    CPC classification number: B26B7/00 ,  B25D11/12 ,  B25D2250/245 ,  B44B3/02 ,  G09B19/24

    Abstract: A tool assembly is disclosed that provides reciprocating motion to a tip of the assembly. The tool assembly has a drive assembly, a shaft assembly and a retraction mechanism contained within a housing. The tip of the shaft assembly protrudes from the housing during a portion of the stroke of the drive mechanism and upon disengagement of a motor of the drive assembly, the tip of the shaft assembly is recessed within the housing of the tool assembly.

    Abstract translation: 公开了一种向组件的尖端提供往复运动的工具组件。 工具组件具有包含在壳体内的驱动组件，轴组件和缩回机构。 轴组件的尖端在驱动机构的行程的一部分期间从外壳突出，并且在驱动组件的电机脱离时，轴组件的尖端凹入工具组件的壳体内。

    Drive mechanism and power tool
    6.
    发明申请
    Drive mechanism and power tool 审中-公开
    驱动机构和电动工具

    公开(公告)号：US20050016001A1

    公开(公告)日：2005-01-27

    申请号：US10874890

    申请日：2004-06-23

    Applicant: David Griep ,  Richard Jungmann ,  Roger Neitzell ,  Thomas James ,  Thomas Bednar ,  Troy Thorson ,  David Serdynski

    Inventor： David Griep ,  Richard Jungmann ,  Roger Neitzell ,  Thomas James ,  Thomas Bednar ,  Troy Thorson ,  David Serdynski

    IPC: B23D51/16 ,  B23D61/06 ,  B25D11/12 ,  B26B19/02

    CPC classification number: B23D61/06 ,  B23D51/16 ,  B25D11/12 ,  Y10T74/18056 ,  Y10T74/18248 ,  Y10T83/688

    Abstract: A drive mechanism for a power tool, a power tool and a reciprocating saw. The power tool includes a housing, a motor supported by the housing and including a drive shaft, an output member supported by the housing and adapted to support a tool element, and a drive mechanism. The drive mechanism includes a drive assembly driven by the drive shaft for rotation about an axis, the drive assembly including a gear, a hub selectively driven by the gear for rotation about the axis, and structure positioned between the gear and the hub, the structure selectively transmitting drive force between the gear and the hub and selectively allows relative movement between the gear and the hub. The drive mechanism may also include a drive arm drivingly connected between the drive assembly and the output member of a tool, and the drive arm may be configured to absorb an impact.

    Abstract translation: 用于电动工具，电动工具和往复锯的驱动机构。 电动工具包括壳体，由壳体支撑并包括驱动轴的电机，由壳体支撑并适于支撑工具元件的输出构件和驱动机构。 所述驱动机构包括驱动组件，所述驱动组件由所述驱动轴驱动以围绕轴线旋转，所述驱动组件包括齿轮，由所述齿轮选择性地驱动以围绕所述轴线旋转的轮毂以及定位在所述齿轮和所述轮毂之间的结构，所述结构 选择性地在齿轮和轮毂之间传递驱动力并选择性地允许齿轮和轮毂之间的相对运动。 驱动机构还可以包括被驱动地连接在驱动组件和工具的输出构件之间的驱动臂，并且驱动臂可构造成吸收冲击。

    Arrangement for converting rotary motion to reciprocatory motion
    7.
    发明授权
    Arrangement for converting rotary motion to reciprocatory motion 失效
    将旋转运动转换成往复运动的布置

    公开(公告)号：US4436163A

    公开(公告)日：1984-03-13

    申请号：US266156

    申请日：1981-05-22

    Applicant: Frank F. Simpson

    Inventor： Frank F. Simpson

    IPC: A01G3/053 ,  B23B45/16 ,  B25D11/12 ,  B25D16/00 ,  F16H21/50 ,  B23B45/02

    CPC classification number: F16H21/50 ,  A01G3/053 ,  B25D11/12 ,  B25D16/00 ,  B25D2211/003 ,  B25D2211/068 ,  Y10T74/18024 ,  Y10T74/18256

    Abstract: A power operated tool includes a prime mover, an output member and a power transmission mechanism arranged to transmit rotary motion of the prime mover to a reciprocatory output member. The power transmission mechanism includes a first member mounted for reciprocating motion, a link coupled at one end to the first member, and a second member mounted for rotation about an axis transverse to the path of reciprocating motion of the first member. The arrangement is such that rotation of the second member reciprocates the first member and also imparts a cyclic partial rotation to the first member during said reciprocation. The second member has a bore therein spaced from the axis of rotation and inclined there towards. The bore has an axis which intersects the axis of rotation at an angle of about one quarter of the angle through which the first member partially rotates.

    Abstract translation: 电动工具包括原动机，输出构件和动力传递机构，其布置成将原动机的旋转运动传递到往复输出构件。 动力传递机构包括安装成往复运动的第一构件，一端连接到第一构件的连杆和安装成围绕横向于第一构件的往复运动路径的轴线旋转的第二构件。 该布置使得第二构件的旋转使第一构件往复运动，并且还在所述往复运动期间使第一构件产生循环部分旋转。 第二构件具有与旋转轴线间隔开的孔，并且朝向其倾斜。 孔具有与第一构件部分旋转的角度大约四分之一角的旋转轴线相交的轴线。

    Tool drive assembly
    8.
    发明授权
    Tool drive assembly 失效
    工具驱动装配

    公开(公告)号：US3626768A

    公开(公告)日：1971-12-14

    申请号：US3626768D

    申请日：1969-09-02

    Applicant: DANCSIK JOSEPH J

    Inventor： DANCSIK JOSEPH J

    IPC: B23Q5/027 ,  B24B23/04 ,  B25D11/12 ,  F16H21/22

    CPC classification number: B25D11/12 ,  B24B23/04 ,  B25D2217/0088 ,  Y10T74/18208 ,  Y10T74/2179

    Abstract: A TOOL DRIVE ASSEMBLY FOR CONVERTING ROTARY MOTION TO RECIPROCATING MOTION. A DRIVEN MEMBER IS ROTATABLY SUPPORTED IN A HOUSING AND INCLUDES A SHANK PORTION AND AN ENLARGED HEAD PORTION WITH A CENTER OF MASS OFFSET FROM THE AXIS OF ROTATION. AN INTERMEDIATE MEMBER HAS A CYLINDRICAL PORTION INTEGRAL THEREWITH AND DISPOSED IN A HOLLOW IN THE HEAD PORTION. A PEG EXTENDS UPWARDLY FROM THE INTERMEDIATE MEMBER AND FORMS A PART OF A CONNECTION MEANS WHICH IS CONNECTED TO A RECIPROCATING TOOL HOLDER MEMBER. THE INTERMEDIATE MEMBER AND THE CONNECTION MEANS HAVE COUNTERBALANCING MASSES WHICH, IN COMBINATION WITH ONE ANOTHER, COUNTERBALANCE THE OFFSET MASS OF THE HEAD PORTION DURING ALL ADJUSTED ROTARY POSITIONS OF THE INTERMEDIATE MEMBER RELATIVE TO THE DRIVEN MEMBER, WHICH IN TURN ADJUSTS THE LENGTH OF THE STROKE OF THE TOOL HOLDER MEMBER. A TOOL HOLDER ASSEMBLY INCLUDES A TUBULAR MEMBER EXTENDING FROM THE HOUSING WITH A DUST COVER ATTACHED TO THE TOOL HOLDER MEMBER AND SLIDABLY AND RECIPROCALLY DISPOSED ABOUT THE EXTERIOR OF THE TUBULAR MEMBER. A DRIVE MEANS INTERCONNECTS THE TOOL HOLDER MEMBER AND THE CONNECTION MEANS FOR TRANSMITTING THE RECIPROCATING MOTION. A KNURLED MEMBER IS DISPOSED ABOUT THE TUBULAR MEMBER ADJACENT THE HOUSING AND IS CONNECTED TO THE DUST COVER BY A SHAFT SLIDABLY DISPOSED IN THE KNURLED MEMBER FOR ROTATABLY ADJUSTING THE POSITION OF THE TOOL HOLDER MEMBER.

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