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公开(公告)号：US20230150103A1
公开(公告)日：2023-05-18
申请号：US17916928
申请日：2021-04-07
Applicant: Hilti Aktiengesellschaft
Inventor： Ernst-Rudolf LÜBKERT , Uto PLANK , Jochen ERHARDT
CPC classification number: B25D11/12 , B25D17/26 , B25D2217/0065 , B25D2250/121 , B25D2250/345 , B25D2250/365
Abstract: An electropneumatic impact mechanism for an electric hand-held power tool, in particular a hammer drill and/or chipping hammer, wherein the impact mechanism has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is designed as an externally toothed gearwheel and is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing about an axis of rotation on the other side, an axial gap, preferably for optionally receiving at least part of a lubrication space separating element, is provided between an eccentric wheel surface facing the connecting rod and a connecting rod surface facing the eccentric wheel.
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公开(公告)号：US10016885B2
公开(公告)日：2018-07-10
申请号：US14772722
申请日：2014-02-17
Applicant: HITACHI KOKI CO., LTD.
Inventor： Takahiro Ookubo
CPC classification number: B25D16/00 , B25D11/12 , B25D17/20 , B25D17/26 , B25D2217/0096 , B25D2250/131 , B25D2250/231 , B25D2250/365
Abstract: An impact tool which transmits an impact force to a tool bit supported by a casing includes: a cylinder which is attached to the casing and has an opening on one end side thereof to which the tool bit is inserted; an intermediate element which is provided in an inside of the cylinder so as to be able to move straight, has a projection projecting in a radial direction so as to regulate a range of the straight movement, and transmits the impact force to the tool bit; and passages and which communicate a space in an inside of the cylinder at a position nearer to the tool bit than the projection with the outside of the cylinder and penetrate through the cylinder in the radial direction.
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公开(公告)号：US20160151904A1
公开(公告)日：2016-06-02
申请号：US14772722
申请日：2014-02-17
Applicant: HITACHI KOKI CO., LTD.
Inventor： Takahiro OOKUBO
CPC classification number: B25D16/00 , B25D11/12 , B25D17/20 , B25D17/26 , B25D2217/0096 , B25D2250/131 , B25D2250/231 , B25D2250/365
Abstract: An impact tool capable of preventing an impact force from being applied to an intermediate element in a state where the intermediate element and a tool bit are apart from each other is provided. An impact tool which transmits an impact force to a tool bit supported by a casing includes: a cylinder which is attached to the casing and has an opening on one end side thereof to which the tool bit is inserted; an intermediate element which is provided in an inside of the cylinder so as to be able to move straight, has a projection projecting in a radial direction so as to regulate a range of the straight movement, and transmits the impact force to the tool bit; and passages and which communicate a space in an inside of the cylinder at a position nearer to the tool bit than the projection with the outside of the cylinder and penetrate through the cylinder in the radial direction.
Abstract translation: 提供一种能够防止在中间元件和工具头彼此分离的状态下将冲击力施加到中间元件的冲击工具。 将撞击力传递到由壳体支撑的工具钻头的冲击工具包括：缸体，其附接到壳体并且在其一端侧具有插入工具钻头的开口; 设置在气缸内部以能够直线移动的中间元件具有沿径向突出的突出部，以便调节直线运动的范围，并将冲击力传递到工具头; 以及通道，其在比圆柱体的突起更靠近工具钻头的位置处在气缸的内部中传送空间，并且在径向方向上穿过气缸。
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公开(公告)号：US08291560B2
公开(公告)日：2012-10-23
申请号：US12518992
申请日：2007-12-13
Applicant: Rauno Peippo
Inventor： Rauno Peippo
CPC classification number: F28G7/00 , B08B7/02 , B25D11/064 , B25D11/12 , B25D2250/371 , Y10T29/4583
Abstract: An impact rapping device includes a stationary anvil integrated with a surface to be rapped, the anvil having a hammering axis perpendicular to the surface to rapped, a hammer arranged to move coaxially with the hammering axis, to hit an impact surface of the anvil, and a device for moving the hammer. The anvil and the hammer form a compact unit, which can be assembled in any position. The hammer is supported to lean on the anvil in such a way that the position of the hammer automatically follows changes of place or position of the anvil, and so that the hammer can move only parallel to the hammering axis.
Abstract translation: 冲击振打装置包括与要被研磨的表面一体化的固定砧座，所述砧座具有垂直于要打磨的表面的锤击轴线，设置成与所述锤击轴线同轴地移动以撞击所述砧座的冲击表面的锤，以及 用于移动锤的装置。 砧座和锤子形成一个紧凑的单元，可以在任何位置组装。 锤子被支撑以倾斜在砧座上，使得锤的位置自动地跟随砧座的位置或位置的变化，并且使得锤可以仅平行于锤击轴线移动。
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95.发明授权公开(公告)号：US07398835B2
公开(公告)日：2008-07-15
申请号：US11339434
申请日：2006-01-25
Applicant: Michael Stirm
Inventor： Michael Stirm
CPC classification number: B25D11/106 , B25D11/12 , B25D2250/025 , B25D2250/371
Abstract: A rotary hammer incorporating both a reciprocating drive for generating a first hammering action transmittable to a tool bit and ratcheting mechanism for generating a second hammering action transmittable to the tool bit. The first hammering action and the second hammering actions differing in frequency and force of the impacts transmitted to the tool bit. Furthermore, the reciprocating drive and ratcheting mechanism are selectably engageable so that the first hammering action and the second hammering action may be selectably transmitted to the tool bit individually or in combination depending on the desired mode operation.
Abstract translation: 一种旋转锤，包括用于产生可传送到工具钻头的第一锤击作用的往复运动和用于产生可传送到工具钻头的第二锤击作用的棘轮机构。 第一次锤击动作和第二个锤击动作在传递到刀具位置的冲击的频率和力方面不同。 此外，往复驱动和棘轮机构可选择地接合，使得可以根据期望的模式操作将第一锤击动作和第二锤击动作可选地单独地或组合地传送到工具刀头。
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Patent Agency Ranking
公开(公告)号：US5117923A
公开(公告)日：1992-06-02
申请号：US453394
申请日：1989-12-19
Applicant: Wolfgang Wuhrer
Inventor： Wolfgang Wuhrer
CPC classification number: E21B6/00 , B25D11/12 , B25D9/12 , E21B21/14 , Y10S173/04
Abstract: The hydraulic jackhammer is provided with a rotor turbine which is driven by a liquid stream in order to activate the tup for driving against a jumper rod. After passing by the turbine rotor, the liquid stream is mixed with air and passed through a nozzle into a guide channel under pressure in order to cool the casing. Some of the liquid-air mixture is passed through the hollow jumper rod for spraying onto a jumper bit and sprayed onto the rock being drilled.
Abstract translation: 液压千斤顶设置有由液体流驱动的转子涡轮机，以便激活用于驱动跳杆的托架。 在通过涡轮转子之后，将液体流与空气混合并在压力下通过喷嘴进入引导通道以冷却外壳。 一些液体 - 空气混合物通过空心跳杆，用于喷洒到跳针上并喷洒到待钻的岩石上。
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公开(公告)号：US4742875A
公开(公告)日：1988-05-10
申请号：US841261
申请日：1986-03-19
Applicant: Joseph P. Bell
Inventor： Joseph P. Bell
CPC classification number: B25D1/02 , B25D11/10 , B25D11/12 , B25D2211/068 , B25D2250/025 , B25D2250/095
Abstract: A motor-driven hammer may include an air motor, a DC motor operated from rechargeable batteries, or an AC motor operated from the commerical power supply. In one embodiment, the motor is coupled to reciprocate the hammer head by way of a cam is a tension spring. In the second embodiment a compression spring is employed in conjunction with a cam which releases the hammer head upon full compression of the spring.
Abstract translation: 电动锤可以包括气动马达，从可充电电池操作的直流马达或从商用电源运行的交流马达。 在一个实施例中，马达被联接以通过作为张力弹簧的凸轮往复运动锤头。 在第二实施例中，压缩弹簧与在弹簧完全压缩时释放锤头的凸轮结合使用。
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公开(公告)号：US4669552A
公开(公告)日：1987-06-02
申请号：US757241
申请日：1985-07-22
Applicant: J. Marlo Foster , Fred C. Pierce, II
Inventor： J. Marlo Foster , Fred C. Pierce, II
IPC: B25D11/12
CPC classification number: B25D11/12
Abstract: Power driving apparatus includes a body portion, a power supplying portion, an actuating portion, a drive portion, a biasing portion and a surface contacting portion. The body portion includes a vertically oriented elongated tubular section, the tubular section including a substantially open lower end. The power supplying portion includes a power source affixed to the body portion spaced from the open lower end thereof, the power source including an output shaft member disposed transversely of the body portion. The actuating portion includes a rotatable eccentric supported transversely axially within the body portion, the eccentric being spaced from the open lower body end substantially parallel to the output shaft member. An arm member has one end pivotally connected to the eccentric and extends therefrom downwardly toward the open lower body end. A weighted hammer section is supended from a lower free end of the arm member and disposed within the body portion. The drive portion includes drive mechanism operatively connecting the output shaft member with the eccentric. The biasing portion includes a coil spring member having one end operatively connected to the hammer section, the coil spring member urging the hammer section toward the open lower body end. The surface contacting portion includes a toolhead member disposed adjacent the open lower body end and axially aligned therewith.
Abstract translation: 动力驱动装置包括主体部分，供电部分，致动部分，驱动部分，偏压部分和表面接触部分。 主体部分包括垂直定向的细长管状部分，管状部分包括基本上敞开的下端。 供电部分包括固定到主体部分的与其开口下端间隔开的电源，电源包括横向于主体部分设置的输出轴部件。 致动部分包括横向轴向地支撑在主体部分内的可旋转的偏心件，该偏心元件与敞开的下部主体端部基本上平行于输出轴构件间隔开。 臂构件的一端枢转地连接到偏心件并从其向下延伸到开放的下体端。 加重锤部分从臂部件的下自由端延伸并且设置在主体部分内。 驱动部分包括可操作地将输出轴构件与偏心轮连接的驱动机构。 偏置部分包括螺旋弹簧构件，其一端可操作地连接到锤部，螺旋弹簧构件将锤部分推向打开的下体端。 表面接触部分包括邻近打开的下部主体端部并与其轴向对准设置的工具头构件。
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99.发明授权Crank gear with adjustable crank radius for motor driven working implements 失效曲轴齿轮，可调节曲柄半径，用于电机驱动的作业工具
公开(公告)号：US4294136A
公开(公告)日：1981-10-13
申请号：US485
申请日：1979-01-02
Applicant: Martin Greppmair , Wittloff Grunwald
Inventor： Martin Greppmair , Wittloff Grunwald
CPC classification number: F16H21/20 , B25D11/12 , F16C3/28 , Y10T74/2179
Abstract: A crank gear with adjustable crank radius for motor driven beating working implements, especially tamping implements, jack hammers, hammer drills and the like, in which the crank pin for the connecting rod is eccentrically arranged with regard to the crank shaft axis and when being adjusted moves in a circular path which is substantially parallel to its plane of circulation and is eccentric with regard to the crank shaft axis. That end of the crank shaft which faces the connecting rod is a crank disc. The crank pin is eccentrically arranged on a clamping or coupling disc which with regard to the crank shaft axis eccentrically engages that end face of the crank disc which faces toward the crank pin. The clamping disc, when in disengaging position, is rotatable from the outside of the crank gear relative to the crank disc and is adapted in a selected operative position to be arrested relative to the crank disc, by means of a tension force pressing the clamping disc against the crank disc.
Abstract translation: 具有可调节曲柄半径的曲柄齿轮，用于马达驱动打浆工作工具，特别是捣固工具，千斤顶锤，锤钻等，其中连杆的曲柄销相对于曲轴轴线偏心布置，并且在被调整时 在与其平面平行的圆形路径中移动，并且相对于曲轴轴线偏心。 面向连杆的曲轴的端部是曲柄盘。 曲柄销偏心地布置在夹紧或联接盘上，曲柄轴相对于曲柄销的面向曲柄销的端面偏心接合。 当处于分离位置时，夹紧盘可相对于曲柄盘从曲柄齿轮的外部旋转，并且适于在选定的操作位置中相对于曲柄盘被阻止，该张紧力通过按压夹紧盘 对着曲柄盘。
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公开(公告)号：US3822001A
公开(公告)日：1974-07-02
申请号：US34286473
申请日：1973-03-19
Applicant: BLACK & DECKER MFG CO
Inventor： SIDES D
CPC classification number: B25D11/12 , B25D17/26 , B25D2217/0088
Abstract: An electric paving breaker is described which includes an electric motor, a crank and a piston driven by the motor, and a ram driven by the piston which delivers energy to a tool bit to produce a hammering output. An improved lubricating system for the rotating mechanism is described.
Abstract translation: 描述了一种电动铺路断路器，其包括电动机，曲柄和由电动机驱动的活塞，以及由活塞驱动的活塞，其将能量传递到工具钻头以产生锤击输出。 描述了用于旋转机构的改进的润滑系统。
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