Automatic Control Of Power Operated Means Patents (Class 173/2)
  • Patent number: 11161227
    Abstract: An electric working machine in one aspect of the present disclosure includes: a motor, a manipulator, a setter, and a controller. The setter sets first control characteristics preliminarily registered. The first control characteristics are set to achieve a rotational speed of the motor from a minimum rotational speed to a maximum rotational speed with a manipulating range of the manipulator, which is 50% or less of an effective manipulating range thereof.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: November 2, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Itsuku Kato, Akira Tomonaga, Katsuna Hayashi, Tokuo Hirabayashi, Tomoyuki Kondo
  • Patent number: 11138543
    Abstract: Systems and methods for increasing productivity in a production activity are provided. A machine for accomplishing the production activity generates units of output, which are monitored by a data acquiring device. An expected earnings rate is generated by a processor based on expected production parameters and earnings data. An evaluated earnings rate is generated by the processor based upon the actual output and the earnings data. The evaluated earnings rate and expected earnings rate is displayed on a display.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: October 5, 2021
    Inventor: Mark Lamoncha
  • Patent number: 11133766
    Abstract: An electric working machine in one aspect of the present disclosure includes a driving device, a controller, a control power source, and an operation state determiner. The control power source includes a first converter and a second converter. The control power source transitions to a first conversion state when the operation state determiner determines that the controller is in a control operation state. The control power source in the first conversion state supplies a first control current to the controller. The control power source transitions to a second conversion state when the operation state determiner determines that the controller is in a low power operation state. The control power source in the second conversion state (i) stops operation of the first converter, and (ii) supplies a second control current to the controller.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: September 28, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Suzuki, Akihiro Nakamoto
  • Patent number: 11130217
    Abstract: In an electric driver configured such that a driver bit is coupled to a drive output shaft of an electric motor via a clutch mechanism to perform screw tightening operations, an automatic screw tightening control method and a device are provided such that an appropriate screw tightened state in a screw tightening operation can be confirmed and determined, simply and reliably. In a screw tightening operation by an electric driver, at start of a predetermined screw tightening operation, a rotation amount of an electric motor at a clutch operation time by a clutch mechanism is detected, this rotation amount is set to be a target rotation amount and in the subsequent screw tightening operations, a rotation amount of the electric motor at the clutch operation time is detected and compared with the target rotation amount, respectively, so that acceptability of the respective screw tightened states is determined.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: September 28, 2021
    Inventor: Katsuyuki Totsu
  • Patent number: 11048224
    Abstract: A computerized method of machining a workpiece including, prior to machining the workpiece, establishing, based on empirical data obtained from machining activity at an earlier time, an historical mapping indicating pairings of depth of cut and rpm at which undesirable chatter (UDC) did not occur during machining activity at an earlier time using at least one given type of milling machine, at least one given type of cutting tool and at least one given type of workpiece material, prior to commencing machining of the workpiece, programming a machine tool to machine the workpiece using a given type of milling machine, a given type of cutting tool and a given type of workpiece material at at least one depth of cut and rpm, which, based on the historical mapping, avoid UDC and operating the machine tool in accordance with the programming to machine the workpiece.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: June 29, 2021
    Assignee: SOLIDCAM LTD.
    Inventor: Michael Berman
  • Patent number: 11038402
    Abstract: An electronic control unit is configured to operate an electric motor from a rechargeable battery pack. The control unit has a circuit board with electronic components for driving the electric motor. Furthermore, an electrical braking circuit having a braking resistor and also a braking switch is provided. The receiving surface of the circuit board is spatially divided into a first surface region and a second surface region. The first surface region serves to receive electronic components; the second surface region serves to receive the braking resistor, wherein the braking resistor is configured as a conductor track which is formed on the circuit board.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 15, 2021
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Kay-Steffen Gurr, Gernot Liebhard, Lothar Lehmann, Rudolf Saemann
  • Patent number: 11015315
    Abstract: An apparatus (100) to trace pile set during pile driving comprises a panel (110) for attachment to a pile (150); a holding mechanism (120) to hold a writing instrument (160) against the panel (110) to trace the pile set for series of blows during the pile driving; a sliding mechanism (130) to provide lateral movement across the panel (110) for the holding mechanism (120) after each blow during the pile driving; and a platform (140) to allow the sliding mechanism (130) to slide freely in horizontal direction.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: May 25, 2021
    Inventors: Yeow Thium Chin, Jia Yi Chin
  • Patent number: 10932873
    Abstract: A teleoperational medical system for performing a medical procedure in a surgical field includes a teleoperational assembly having a plurality of motorized surgical arms configured to assist in a surgical procedure. It also includes an input device configured to receive an input to move all the arms of the plurality of motorized surgical arms to a pre-established position. A processing system is configured to receive the input form the input device and output control signals to each arm of the plurality of motorized surgical arms to move each arm to the pre-established position.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: March 2, 2021
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Paul G. Griffiths, Brandon D. Itkowitz, Thomas R. Nixon
  • Patent number: 10881399
    Abstract: A method of controlling motor velocity in a surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor coupled to the displacement member, a control circuit coupled to the motor, a position sensor coupled to the control circuit, and a timer coupled to the control circuit. The method includes receiving a first position of a displacement member from a position sensor, starting a timer, advancing the displacement member to a second position by setting a motor velocity to a first velocity, receiving the second position from the position sensor, stopping the timer when the displacement member reaches the second position, receiving elapsed time from the timer, wherein the elapsed time is the time taken by the displacement to move from the first position to the second position, and controlling, by the control circuit, velocity of the motor based on the elapsed time.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 5, 2021
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, David C. Yates, Jason L. Harris, Brett E. Swensgard
  • Patent number: 10766130
    Abstract: A system includes at least one hand-held power tool and at least one electrotechnical product. The power tool includes a housing with a handle, a drive motor arranged in the housing, and a first interface configured to receive information from at least one second external interface and/or to transmit information to the at least one second external interface. The housing of the hand-held power tool and a housing of the electrotechnical product each have a receiving opening. The first interface is removably arranged in a selected one of the receiving openings. The receiving openings are releasably sealed by corresponding covers. The covers close the housings to the outside.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: September 8, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Jens Brennenstuhl, Heiko Roehm, Maik Rabe
  • Patent number: 10759036
    Abstract: It is an object to provide a novel technique for releasing an intervening member of a driving member. A representative screwdriver is provided with a motor and a driving mechanism. The driving mechanism has a spindle, a lock sleeve, rollers, a driving gear, a retainer and a spring receiver. When driven with the rollers held between the lock sleeve and the driving gear, the spindle is rotated in a normal direction. The lock sleeve has an inclined part and the retainer has an inclined part. The lock sleeve and the retainer move with respect to each other in the axial direction and the circumferential direction by sliding contact between the inclined parts. This relative movement in the circumferential direction is utilized to release the holding of the rollers.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 1, 2020
    Assignee: MAKITA CORPORATION
    Inventor: Hiroki Ikuta
  • Patent number: 10683731
    Abstract: A drill rig includes a drawworks having a drum operably connected to a drive system and a brake. A drill string extends from the drum of the drawworks, along a derrick, to a block and tackle arrangement holding a travelling block so that operation of the drawworks causes the drum to release or retract the drill string. A travelling block controller controls the operation of the drawworks. An interlock sensor senses a sensed parameter, and the sensed parameter is at least one of a drill rig parameter, a drawworks parameter, or a travelling block controller parameter. An interlock signal generated by the interlock sensor is reflective of the sensed parameter. An interlock operably connected to the travelling block controller receives the interlock signal and disables operation of at least one of the travelling block controller or the drawworks if the interlock signal meets a predetermined criteria.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: June 16, 2020
    Inventors: Barry J. Nield, George A. Nield
  • Patent number: 10651706
    Abstract: A power tool is provided including a tool housing, an electric motor disposed inside the tool housing, a power interface facilitating a connection to a power source, a plurality of power components arranged to modulate a supply of power from the power interface to the electric motor, a user-actuated input unit providing an analog signal corresponding to a desired rotational speed of the electric motor, and a control unit is receiving the analog signal from the user-actuated input unit. The control unit includes a controller configured to control a switching operation of the power components based on the analog signal to regulate an amount of electric power being supplied to the electric motor, and an input detection unit configured to generate an ON/OFF signal to turn on the controller based on detection of a prescribed change in the analog signal indicative of an initial actuation of the user-actuation unit.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 12, 2020
    Assignee: Black & Decker Inc.
    Inventors: Michael K. Forster, Matthew J. Velderman
  • Patent number: 10519769
    Abstract: The present disclosure involves a novel way of using drilling vibrations generated by the deformation of a rock formation in response to forces acting on the rock formation, where the forces are related to a drill bit and/or drilling fluid system, to identify the nature and occurrence of fractures, fracture swarms and other mechanical discontinuities (boundaries) such as bedding planes and/or faults that offset or otherwise separate rock formations with different mechanical rock properties.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 31, 2019
    Assignee: Fracture ID, Inc.
    Inventors: Jesse B. Havens, James D. Lakings, R. Christopher Neale
  • Patent number: 10507554
    Abstract: A method of processing a workpiece comprises identifying processing locations on the workpiece, drilling a first hole at one of the processing locations using a rotary drive, sensing a flow of fluid while drilling, generating an operation signal based on the flow, comparing the duration interval of the operation signal to a predetermined temporal value, and drilling a different hole at a different processing location based on the duration interval and the temporal value.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: December 17, 2019
    Assignee: The Boeing Company
    Inventors: James Albert DeLand, Darrell Darwin Jones
  • Patent number: 10455765
    Abstract: In one aspect, a method for automatically controlling a height of an implement of an agricultural work vehicle relative to a ground surface may include monitoring, with one or more computing devices, the height of the implement relative to the ground surface. The method may also include determining, with the one or more computing devices, an implement height error by comparing the height of the implement with a predetermined target height. The method may also include calculating, with the one or more computing devices, a proportional signal based on the implement height error raised to a power greater than one. The method may also include adjusting, with the one or more computing devices, the height of the implement relative to the ground surface based on the proportional signal.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 29, 2019
    Assignee: CNH Industrial America LLC
    Inventor: Kenneth Seiders, Jr.
  • Patent number: 10416648
    Abstract: A computerized method of machining a workpiece including, prior to machining the workpiece, establishing, based on empirical data obtained from machining activity at an earlier time, an historical mapping indicating pairings of depth of cut and rpm at which undesirable chatter (UDC) did not occur during machining activity at an earlier time using at least one given type of milling machine, at least one given type of cutting tool and at least one given type of workpiece material, prior to commencing machining of the workpiece, programming a machine tool to machine the workpiece using a given type of milling machine, a given type of cutting tool and a given type of workpiece material at at least one depth of cut and rpm, which, based on the historical mapping, avoid UDC and operating the machine tool in accordance with the programming to machine the workpiece.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 17, 2019
    Assignee: SOLIDCAM LTD.
    Inventor: Michael Berman
  • Patent number: 10309166
    Abstract: A system includes an accessory tool selected from a group consisting of a casing unit, a cementing unit, and a drilling unit; and a genset mounted to the accessory tool and comprising: a fluid driven motor having an inlet and an outlet for connection to a control swivel of the system; an electric generator connected to the fluid driven motor; a manifold having an inlet for connection to the control swivel and an outlet connected an accessory tool actuator; and a control unit in communication with the electric generator and the manifold and comprising a wireless data link.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 4, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Bjoern Thiemann, Frank Wern, John Fielding Ownby, Aicam Zouhair, Martin Liess, Christina Karin Hebebrand
  • Patent number: 10095212
    Abstract: A motor control apparatus controlling a motor driving a machine tool includes, an abnormal load detecting unit that detects an abnormal load by monitoring a load of the motor, a retract amount storing unit that stores a plurality of retract amounts used when the machine tool performs a retract operation in response to detection of an abnormal load by the abnormal load detecting unit, a retract amount switching unit that switches a retract amount selected from the plurality of retract amounts in accordance with a result of determination of whether the machine tool is processing or not, and a retract amount adding unit that adds a retract amount selected by switching of the retract amount switching unit to an instruction value indicative of a movement amount of the machine tool.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 9, 2018
    Assignee: FANUC CORPORATION
    Inventors: Kenichi Takayama, Zhiwei Tang
  • Patent number: 10022832
    Abstract: A system, method and computer-readable medium for fine-tuning speed selection for reducing machine chatter. The system includes circuitry configured to determine a predetermined speed of the machine. The circuitry identifies a stability lobe based on the predetermined speed of the machine and selects a first set of fine-tuning speeds from a range of machine speeds corresponding to the determined stability lobe. Further, the circuitry causes the machine to operate at one or more of the first set of fine-tuning speeds.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 17, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Zachary Piner, Ke Ding, Mehdi Namazi, Kyle Konishi
  • Patent number: 9595701
    Abstract: A handheld tool having a battery interface is described, in which a provision is made for the handheld tool to have at least one measuring device interface, which is provided to receive at least data containing measuring information of a handheld tool add-on measuring device.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: March 14, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Wolf Matthias, Gunter Flinspach, Alexander Osswald, Rainer Glauning
  • Patent number: 9457459
    Abstract: A power tool includes a motor, an impact mechanism, an output unit, a circuit board, a housing, and a power cord. The circuit board includes a power-source circuit board configured to convert alternate current into direct current and a control circuit board. The housing includes a body section, a board accommodating section, and a handle section. The board accommodating section accommodates the circuit board. The handle section has one end portion connected to the body section and another end portion connected to the board accommodating section. The power cord extends from the board accommodating section. The power cord is positioned opposed to the handle section with respect to the board accommodating section. The control circuit board is located at a position close to the handle section in the board accommodating section. The power-source circuit board is located between the control circuit board and the power cord.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: October 4, 2016
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Naoki Tadokoro, Ken Miyazawa, Hajime Kikuchi, Toshiaki Koizumi
  • Patent number: 9440339
    Abstract: An electric screwdriver includes a motor having a motor shaft, a handle housing for accommodating the motor, an output shaft at least partly protruding from the handle housing, a transmission device for enabling the motor shaft to drive the output shaft to rotate around a first axis, an exploring antenna for detecting whether an object is charged, and an operating switch coupled to the handle housing for controlling the motor. The exploring antenna has a front end portion extending beyond the handle housing. The output shaft has an inserting groove, and a ratio of the maximum size of the handle housing to the maximum size of the inserting groove in a radial direction of the output shaft is greater than or equal to 3.9 and less than or equal to 8.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 13, 2016
    Assignee: Chervon (HK) Limited
    Inventors: Gan Wei, Wu Chen, Shichun Tao
  • Patent number: 9314908
    Abstract: According to an aspect of the present invention, there is provided an impact tool including: a motor drivable in an intermittent driving mode; a hammer connected to the motor; an anvil to be struck by the hammer to thereby rotate/strike a tip tool; and a control unit that controls a rotation of the motor by switching a driving pulse supplied to the motor in accordance with a load applied onto the tip tool.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 19, 2016
    Assignee: HITACHI KOKI CO., LTD.
    Inventors: Hideyuki Tanimoto, Nobuhiro Takano, Tomomasa Nishikawa, Kazutaka Iwata, Hironori Mashiko, Hayato Yamaguchi, Atsushi Nakagawa, Katsuhiro Oomori, Mizuho Nakamura, Hiroki Uchida, Saroma Nakano, Yutaka Ito
  • Patent number: 9266178
    Abstract: A power tool includes a housing, a motor, an output member driven by the motor, and a reaming attachment coupled to the output member. The reaming attachment has a front end portion selectively driven in rotation by the output member to drive a fastener into a workpiece, and a reaming portion selectively driven in rotation by the output member to remove material from an end surface of a conduit. A rotational motion sensor in the housing is operable to detect rotational motion of the housing about an axis. A controller receives a signal indicative of rotational motion from the sensor, determines a direction of the rotational motion of the housing, and drives the motor in a direction corresponding to the direction of rotational motion of the housing.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: February 23, 2016
    Assignee: BLACK & DECKER INC.
    Inventors: Scott J. Eshleman, Craig A. Schell, Andrew E. Seman, Jr., Daniel Puzio, Daniele C. Brotto, Joseph P. Kelleher, James B. Watson, James R. Parks, Clark A. Bixler
  • Patent number: 9196881
    Abstract: A system includes a power tool having a motor, a drive mechanism mechanically coupled to the motor, and an output element mechanically coupled to the drive mechanism. The motor is operable to drive the drive mechanism and the output element. The system also includes a non-motorized sensing tool having a printed circuit board and a sensing element electrically coupled to the printed circuit board. The sensing element is operable to detect an external characteristic and output a signal to the circuit board. The circuit board is operable to condition the signal into a human-comprehensible form. The system further includes a rechargeable battery pack removably and independently coupled to the power tool and the non-motorized sensing tool to power the motor to drive the drive mechanism and the output element when connected to the power tool and the circuit board and the sensing element when connected to the non-motorized sensing tool.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: November 24, 2015
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Rick Gray, Paul Fry, Mike N. Jones, Scott Schneider, Hughes Marie R.F. Sanoner
  • Patent number: 9126321
    Abstract: A machine tool has a tool retainer for retaining a tool, a motor and a drivetrain which couples the motor with the tool retainer for transmitting a torque. A system pushbutton is coupled with a motor control. When the system pushbutton is activated by a user, the motor control controls the motor in such a way that the motor turns in a first sense of rotation for a duration and then in a sense of rotation opposed to the first sense of rotation. The duration is shorter than 100 ms.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: September 8, 2015
    Assignee: HILTI AKTIENGESELLSCHAFT
    Inventors: Thomas Muller, Germar Meiendres
  • Publication number: 20150144365
    Abstract: A rotary impact tool according to one aspect of the present invention includes a motor, an impact mechanism, a drive unit, an impact detection unit, and a control unit. The control unit reduces a driving force for the motor caused by the drive unit when a count of impacts detected by the impact detection unit has reached a determination count set in advance, which is a value greater than one.
    Type: Application
    Filed: June 4, 2013
    Publication date: May 28, 2015
    Inventors: Tokuo Hirabayashi, Ryunosuke Kumagai, Takeshi Nishimiya, Goshi Ishikawa, Takuya Kusakawa
  • Publication number: 20150136433
    Abstract: Percussion unit, especially for a rotary hammer and/or percussion hammer, comprising a control unit which is designed for open-loop and/or closed loop control of a pneumatic percussion mechanism, and at least one operating condition sensor unit. According to the disclosure, the control unit is designed to detect at least one percussion mechanism parameter depending on measurement values of the operating condition sensor unit.
    Type: Application
    Filed: April 24, 2013
    Publication date: May 21, 2015
    Inventors: Rainer Nitsche, Matthias Tauber, Gerd Schlesak, Antoine Vandamme, Thomas Winkler, Christian Bertsch, Achim Duesselberg, Ulli Hoffmann, Thilo Henke, Juergen Lennartz, Helge Sprenger
  • Publication number: 20150129267
    Abstract: The present invention relates to a restart protection device and a method thereof, wherein the restart protection device is installed in an electric device, and comprises a switch module and a restart protecting module. The restart protecting module is connected between the switch module and a motor of the electric device, used for preventing the current outputted by an external electrical power from directly flowing into the motor when the electric device is restarted. To start the electric device, the user must follow the steps of the restart protection method, such that the unexpected accidents resulted from the sudden restart of the electric device can be effectively prevented.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Inventors: Chao-Yi Lee, Chang-Nan Chen, Chen-Hong Huang, Ying-Sung Ho
  • Publication number: 20150129248
    Abstract: A percussion unit for a rotary hammer and/or percussion hammer includes a control unit that is configured for open-loop and/or closed loop control of a pneumatic percussion mechanism. In at least one operating state in which the control unit changes from an idle mode to a percussion mode, the control unit is configured to adjust at least one operating parameter temporarily to a starting value.
    Type: Application
    Filed: April 24, 2013
    Publication date: May 14, 2015
    Inventors: Rainer Nitsche, Matthias Tauber, Antoine Vandamme, Gerd Schlesak, Helge Sprenger, Carsten Diem, Wolfgang Fischer, Haris Hamedovic, Juergen Lennartz, Christian Bertsch, Mario Eduardo Vega Zavala, Achim Duesselberg
  • Patent number: 9030145
    Abstract: A device for regulating an increase in the output torque over time of an electric drive motor, including a monitoring unit for monitoring an operating variable of the electric drive motor, a regulating unit for regulating the operating variable for regulating the increase in output torque over time, a control unit for activating the regulating unit as a function of a time derivation of the monitored operating variable, the regulating unit being designed to be deactivated after a predetermined period of time. A method for regulating an increase in the output torque over time of an electric drive motor is also described. A corresponding tool and a computer program having program code for carrying out the method are also described.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 12, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Jens Brennenstuhl, Heiko Roehm, Dietmar Saur, Tobias Herr, Ralf Windsheimer, Stefan Mock
  • Publication number: 20150122520
    Abstract: A tooling system that includes a drive unit configured to provide rotational force to a tool member. The tool member is attached at a mount on the drive unit. A camera associated with the drive unit is aligned to capture a target on the tool member. The data is sent to a controller that identifies the tool member based on the target. The controller determines whether the tool member is correct for performing an operation on a work piece. If the tool member is correct, the controller may set one or more operating parameters on the drive unit. If the controller determines that the tool member is not correct, the drive unit is disabled. Further, a signal may be sent to inform an operator of the issue.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Applicant: Apex Brands, Inc.
    Inventors: Martin Douglas Rola, Adrian Hilary Hetzel
  • Publication number: 20150122523
    Abstract: It is an object of the invention to provide a technique for enhancing the operability of a power tool. A representative screwdriver 100 is provided which has a motor 110 and a driving mechanism 120. The driving mechanism 120 has a rotation transmitting mechanism including a driving cam 137 and a driven cam 157, and a cam engagement state is switched by movement of the spindle 150 in a longitudinal direction of the spindle. The position of the spindle 150 in the longitudinal direction is detected by a detecting mechanism 162 that is disposed on the opposite side of the rotation transmitting mechanism from a front end region in the longitudinal direction of the spindle 150. A controller 180 controls the rotation speed of the motor 110 based on the detection result of the detecting mechanism 162 and drives the motor 110.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventors: Hirokatsu YAMAMOTO, Takaaki OSADA, Manabu SUGIMOTO
  • Publication number: 20150122521
    Abstract: A multi-purpose electric tool has a motor, an impact block, a detection assembly configured to detect the position and the movement state of the impact block, and a main control circuit board configured to control whether the motor is powered off upon reaching a preset state according to the detected information of the detection assembly. In the control method, the detection assembly feeds back the detected information to the main control circuit board, if the impact block is not impacting reciprocatingly, the main control circuit board performs torque control according to whether the preset state is reached; and if the impact block is impacting reciprocatingly, the main control circuit board enables the motor to output in a normal mode which does not limiting the current.
    Type: Application
    Filed: September 19, 2014
    Publication date: May 7, 2015
    Inventors: Liang Chen, Wu Chen
  • Patent number: 9022135
    Abstract: A torque applying system includes a torque applying tool having a motor and rotating output spindle, a torque sensor that measures an instantaneous torque exerted by the output spindle during a fastening cycle, and a controller operatively connected to the tool to control the tool's rotational speed during the fastening cycle. The controller is programmed to control the tool's rotational speed to be [(?F??C)/t]/r, wherein t is a time constant of speed control, ?F is a target final torque for the fastening cycle, and r is a torque rate.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: May 5, 2015
    Assignee: Stanley Black & Decker, Inc.
    Inventors: Zuher Naim Khalaf, William Lloyd Naumann
  • Patent number: 9010454
    Abstract: The invention relates to a portable, handheld work apparatus such as a trimmer, a cut-off machine, a chain saw or the like, having a motor (5, 33) to drive a rotating, exchangeable work tool (13). A control unit (15) serves to control the operation of the motor (5, 33). The control unit (15) determines the rotational speed (n) and/or the power (P) of the motor (5, 33). According to the invention, the motor (5, 33) can be operated in a first operating mode (I) with reduced rotational speed (n0) and/or power (P0) and in at least a second operating mode (II) with an increased rotational speed (n1) and/or power (P1). In dependence on a release signal, the control uses exclusively the first operating mode (I) for a limited operation and the second operating mode (II) for an expanded operation.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 21, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Andreas Neubauer, Tim Gegg
  • Patent number: 9004114
    Abstract: A reinforcing bar binding machine is provided with a device for detecting a power supply voltage during a binding wire twisting step subjected to the heaviest load and comparing the power supply voltage with a predetermined CPU operation voltage, and a control device for driving a motor in a reverse direction when the voltage has dropped below the predetermined CPU operation voltage. The power supply voltage during operation is monitored, and twisting operation is suspended before the voltage drops below the CPU operation voltage, whereby the binding wire twisting mechanism is returned to the initial position. Therefore, it is possible to prevent the binding wire twisting mechanism from being stopped while grasping the binding wire, when the CPU stops.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: April 14, 2015
    Assignee: Max Co., Ltd.
    Inventors: Akira Kasahara, Atsushi Matsuoka
  • Publication number: 20150096775
    Abstract: A hydraulic pulse tool includes a power supply unit, a drive unit electrically connected to the power supply unit, a hydraulic pulse torque generating unit coupled to the drive unit and rotatable by the drive unit to produce impacts for causing the drive to produce an electric current change, and a control unit for judging the electric current change and controlling the operation of the drive unit subject to the judgment result. Subject to the above-stated technical characteristics, the hydraulic pulse tool, in addition to the shutoff function, can reduce errors in judgment and achieve multi-stage torque output control.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 9, 2015
    Applicant: TRANMAX MACHINERY CO., LTD.
    Inventor: HSIN-CHI CHEN
  • Patent number: 9000882
    Abstract: An electronic power apparatus is provided, including a circuit board having a conductive pads and a sense pad coupled to an output signal, and an actuator having a wiper portion accommodating a conductive wiper. The wiper includes a first end arranged to engage the sense pad and a second end arranged to slidably engage at least one of the conductive pads on the circuit board. The conductive pads are arranged in a first row of conductive pads and a second row of conductive pads in parallel with and at a distance to the first row of conductive pads. An alignment of the second row of conductive pads is offset with respect to the first row of conductive pads.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: April 7, 2015
    Assignee: Black & Decker Inc.
    Inventors: Matthew Velderman, Michael K. Forster
  • Patent number: 8998887
    Abstract: The invention relates to a medical instrument for removing tissue, in particular a shaver, drill, or morcellator, having a tool that can be set in rotation and a motorized drive for driving the tool, and having an elongate body and a handle that projects laterally from said elongate body. The handle is fastened in a detachable manner to the body.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 7, 2015
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Markus Simmen, Raphael Spycher, Urs Vogel
  • Publication number: 20150083449
    Abstract: A contact head unit provided in a contact apparatus may be provided with a contact rod, a housing, a thrust air passage, and a cancel air passage. The housing supports the contact rod linearly movably by a static pressure air bearing, which allows the contact rod to be brought into contact with an object. If a compressed air is supplied to the thrust air passage, a force in a direction of approaching the object acts on the contact rod. If the compressed air is supplied to the cancel air passage, a force in an opposite direction acts on the contact rod. A control unit sets applied pressure on the object by controlling the pressure of the compressed air of the thrust air passage and the pressure of the compressed air of the cancel air passage while the contact rod is in contact with the object.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 26, 2015
    Inventors: Takashi Nakagawa, Toshihide Matsukawa
  • Patent number: 8944179
    Abstract: A power tool that includes a driving motor and a power transmitting mechanism. The power transmitting mechanism includes a first clutch cam part, a second clutch cam part, clutch teeth, a clutch detecting mechanism and a controller that can control the driving motor in a first control mode in which the driving motor is controlled to rotate at a first rotation speed until before the first and second clutch cam parts are engaged with each other at the clutch teeth and in a second control mode in which the driving motor is controlled to rotate at a second rotation speed higher than the first rotation speed after the first and second clutch cam parts are engaged with each other at the clutch teeth.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 3, 2015
    Assignee: Makita Corporation
    Inventors: Tomohiro Ukai, Yuta Matsuura, Takamasa Hanai, Junpei Kamimoto, Akihiro Ito
  • Patent number: 8936106
    Abstract: An orthopedic impacting tool comprises a motor, an energy storage arrangement, a striker, and an anvil. The motor stores energy in the energy arrangement means and then releases it, causing the striker to apply a controlled force on an adapter to create a precise impact for use in a surgical setting. The tool may further comprise a combination anvil and adapter. The tool further allows forward or backward impacting for expanding the size or volume of the opening or for facilitating removal of a broach, implant, or other surgical implement from the opening. An energy adjustment control of the tool allows a surgeon to increase or decrease the impact energy. A light source and hand grips improve ease of operation of the tool.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: January 20, 2015
    Assignee: Medical Enterprises LLC
    Inventor: Christopher Pedicini
  • Patent number: 8936105
    Abstract: An orthopedic impacting tool comprises a motor, an energy storage chamber, a striker, and an anvil. The motor stores energy in the energy storage chamber and then releases it, causing the striker to apply a controlled force on an adapter to create a precise impact for use in a surgical setting. The tool may further comprise a combination anvil and adapter. An energy adjustment control of the tool allows a surgeon to increase or decrease the impact energy. A light source and hand grips improve ease of operation of the tool.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: January 20, 2015
    Assignee: Medical Enterprises LLC
    Inventor: Christopher Pedicini
  • Publication number: 20150014005
    Abstract: A screwdriving tool that includes a driving tool (driver), a sensor, a sensor target and a contact trip assembly that is coupled to the driving tool and has a nose element. The driver has a housing, a motor and an output member that is driven by the motor. One of the nose element and the output member is axially movable and biased by a spring into an extended position. The sensor and sensor target are configured to cooperate to permit the sensor to provide a sensor signal that is indicative of movement of the one of the nose element and the output member. The motor is controllable in a first operational mode and at least one rotational direction based in part on the sensor signal.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Daniel PUZIO, Craig A. SCHELL, Joseph P. KELLEHER, Scott ESHELMAN, Andrew E. SEMAN, JR., Todd A. HAGAN, Joseph G. STAUFFER, Will WANG, John D. COX
  • Publication number: 20150014004
    Abstract: One embodiment includes display device configured to wirelessly receive a first position status from a positioning device; display a first work-tool working-axis leveling status based on the first position status; receive cut parameters; receive a cut-start indication; determine a first work-tool position status difference based on cut parameters and a second position status; present a position status correction indicator; determine that a third position status is within cut parameters; send a cut-start signal to the positioning device operable to actuate the first work-tool; determine a work-tool cut completion; and send a cut-end signal to the positioning device operable to de-actuate the first work-tool.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 15, 2015
    Applicant: OTL DYNAMICS LLC
    Inventors: Richard S. Schubert, Robert P. Donker
  • Patent number: 8925645
    Abstract: An oil pulse tool includes a motor, an oil pulse unit, an output shaft on which a front end tool is attached, a torque detecting sensor for detecting generation of an impact torque, and an operating portion configured to detect a time period between a first impact torque detected by the torque detecting sensor and a second impact torque detected by the torque detecting sensor. The second impact torque is smaller than the first impact torque. The operating portion carries out a notification when the time period between the first impact torque and the second impact torque is less than a predetermined evaluation value for the time period between the first impact torque and the second impact torque.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: January 6, 2015
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Tetsuhiro Harada, Tomomasa Nishikawa, Kazutaka Iwata, Shinki Ohtsu, Nobuhiro Takano
  • Publication number: 20140374131
    Abstract: A power tool has a continuously variable transmission, a condition detection device, and an operation control device. The continuously variable transmission changes a velocity of a rotational output from a drive motor and outputs the rotational output to a spindle to which a tip end tool is mounted. The condition detection device detects a condition of the power tool. The operation control device determines a target RPM of the spindle based on the condition of the power tool detected by the condition detection device, and controls an RPM of the drive motor and/or a transmission gear ratio of the continuously variable transmission based on the target RPM.
    Type: Application
    Filed: May 10, 2012
    Publication date: December 25, 2014
    Applicant: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Tadasuke Matsuno
  • Publication number: 20140374130
    Abstract: An impact tool includes a motor, a hammer, an anvil, and a control unit. The hammer is configured to be driven by the motor and be movable in an axial direction of the motor. The anvil is configured to be struck by the hammer. The control unit is configured to control a rotation of the motor. The impact tool further includes a restricting unit configured to restrict the movement of the hammer in the axial direction. The control unit is configured to select a driving mode of the motor between a first mode and a second mode. The control unit selects the first mode when a load of the motor is less than or equal to a prescribed value regardless of a restriction of the restricting unit, whereas the control unit selects the second mode when the load exceeds the prescribe value and the restricting unit restricts the movement of the hammer.
    Type: Application
    Filed: March 4, 2013
    Publication date: December 25, 2014
    Inventors: Mizuho Nakamura, Nobuhiro Takano, Tomomasa Nishikawa, Hironori Mashiko