Drive Adjustable To Completely Change Kind Of Drive Patents (Class 173/47)
  • Patent number: 11318596
    Abstract: A power tool includes a motor having a motor shaft, a first intermediate shaft, and a second intermediate shaft extending in parallel to the first intermediate shaft. An output shaft removably holds a tool accessory and has a driving axis extending in parallel to the first and second intermediate shafts. A motion-converting mechanism converts rotation of the first intermediate shaft to linearly hammer the tool accessory. A rotation-transmitting mechanism transmits rotation of the second intermediate shaft to rotate the output shaft. A rotational axis of the motor shaft intersects, or is skewed relative to, the driving axis. A pair of first gears, e.g., bevel gears, operably couples the motor shaft to a first one of the first and second intermediate shafts. A pair of second gears operably couples the first one of the first and second intermediate shafts to a second one of the first and second intermediate shafts.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: May 3, 2022
    Assignee: MAKITA CORPORATION
    Inventors: Kiyonobu Yoshikane, Yusuke Takano
  • Patent number: 11278362
    Abstract: A surgical instrument drive system is configured to actuate functions of a surgical end effector. The surgical instrument drive system includes a first rotary input drive gear configured to be driven by a corresponding first rotary output drive gear of a surgical robot interface; a second rotary input drive gear configured to be driven by a corresponding second rotary output drive gear of a surgical robot interface; and a shifter.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 22, 2022
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Jason L. Harris
  • Patent number: 10940580
    Abstract: In a hand-held power tool, a torque clutch associated with an output spindle, a transmission element axially displaceable in the direction of a longitudinal center axis of the output spindle, a locking element axially immovable in the direction of the longitudinal center axis and movable in a plane transverse to the longitudinal center axis, for activating and deactivating the torque clutch, the locking element enabling, in at least a first operating position, axial displaceability of the transmission element in the direction of the longitudinal center axis to activate the torque clutch, and in at least a second operating position, for at least limiting the axial displaceability of the transmission element to deactivate the torque clutch, in the second operating position of the locking element, the output spindle being at least essentially axially immovable relative to the gear housing in the direction of the longitudinal center axis.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: March 9, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Jens Brennenstuhl, Heiko Roehm
  • Patent number: 10926398
    Abstract: A tool having a housing assembly, which defines a handle, a motor assembly, a trigger assembly, a spindle and a transmission assembly. The motor assembly is received in the housing assembly and has an output shaft. The trigger assembly is coupled to the housing assembly and is configured for use in actuating the motor assembly. The transmission assembly transmits rotary power between the output shaft of the motor assembly and the spindle. The transmission assembly includes a planetary stage with an input sun gear, an output planet carrier and a compound planet gear having a first planet gear and a second planet gear coupled together for common rotation on the output planet carrier. The planetary stage is selectively operable in a first gear reduction and a second, relatively lower gear reduction in which the compound planet gear cooperates to produce at least one intermediate gear reduction within the planetary stage.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 23, 2021
    Assignee: Black & Decker Inc.
    Inventor: David C. Tomayko
  • Patent number: 10511205
    Abstract: An embodiment of the present invention provides a device for attaching/detaching an idler horn for an actuator module which can have a motor, a reduction gear and a control circuit equipped therein. The device, for attaching/detaching an idler horn, comprises: a ring-shaped elastic switch which surrounds the inner end part of a cylindrical hollow portion provided on one side of a housing that forms the outer skin of an actuator module; and a ring-shaped cover member which is for fixing the ring-shaped elastic switch, wherein the ring-shaped elastic switch can be selectively attached/detached to/from an idler horn by means of elasticity.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 17, 2019
    Assignee: ROBOTIS CO., LTD.
    Inventors: Byoung Soo Kim, Wook Jang, In Yong Ha
  • Patent number: 10464201
    Abstract: A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The shift fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the shift fork relative to the selector switch into a neutral position.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 5, 2019
    Assignee: Black & Decker Inc.
    Inventor: Brent A. Kuehne
  • Patent number: 10245711
    Abstract: An electric power tool includes a housing, a motor, a deceleration mechanism, a final output shaft, a vibration mechanism, a vibration switching member, a stop member, and an expansion prevention portion. The vibration mechanism provides a vibration in an axial direction to the final output shaft. The vibration switching member is accommodated in a slit axially disposed on a front end of a tubular portion and moved back and forth in the slit by an operation from outside to switch on and off actuation of the vibration mechanism. The stop member is installed on the front end of the tubular portion to cover the slit.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 2, 2019
    Assignee: MAKITA CORPORATION
    Inventor: Hidenori Nagasaka
  • Patent number: 10245717
    Abstract: A drilling device, which is adjustable at least between a clamping configuration, a drilling configuration and a screwing configuration, includes a machine housing and a machine spindle, which is drivable with the aid of a motor. A drill chuck having a jaw holder, in which clamping jaws are guided, which are adjustable with the aid of a threaded connection provided between an entrainer and a threaded sleeve is provided. A drill spindle, which is drivable by the motor via a planetary gear set, is disposed on the side facing the machine spindle and includes a sun wheel, a planet carrier, which carries at least one planet wheel, and a ring wheel, which has at least one cam, which interacts with at least one clutch element, which is fixed with respect to the ring gear in the drilling configuration.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: April 2, 2019
    Assignee: ROEHM GMBH
    Inventors: Peter Schenk, Patrick Hengsberger
  • Publication number: 20150129268
    Abstract: A hand-held power tool device is described which includes an output unit, a striker, and a rotary percussion receiver which is designed for establishing a transfer of rotary percussions between the striker and the output unit, at least during a rotary percussion operation. It is provided that the hand-held power tool device includes a rotary percussion switch-off device which is designed for interrupting the transfer of rotary percussions from the striker to the rotary percussion receiver, at least during a hammer percussion operation.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 14, 2015
    Applicant: Robert Bosch GmbH
    Inventor: Tobias Herr
  • Patent number: 9016394
    Abstract: A power tool includes a drive motor and at least one auxiliary device, which is coupled to the drive motor, for activating at least two different operating states. The drive motor and the at least one auxiliary device are controllable using at least one operating device. The output of the drive motor is changed when the at least one auxiliary device is activated. As a result, the operating forces are reduced when switching between operating states, and the load on components is reduced.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: April 28, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Thilo Zimmermann, Heiko Roehm, Joerg Welke, Dietmar Saur
  • Publication number: 20150083451
    Abstract: A power tool having an impact mechanism part using a hammer 24 and an anvil 31 is provided with a switching mechanism 35 of a mode in which the hammer 24 impacts the anvil 31 while the hammer is placed over the anvil 31 and another impact mode in which the hammer 24 impacts the anvil 31 without being placed over the anvil 31. The switching mechanism 35 includes a stopper 41 and a pusher 45 disposed in the rear of the hammer 24, and the stopper 41 is moved to carry out switching by rotating the pusher 45. The change member 48 that rotates the pusher 45 has a change lever 48b, which is positioned in the outer side of the hammer case 32, and the change member 48 and an annular part 46 are engaged in a housing.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 26, 2015
    Applicant: HITACHI KOKI CO., LTD.
    Inventor: Tomomasa Nishikawa
  • Patent number: 8978780
    Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 17, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Michael-Andreas Grunwald, Marco Pawlowski, Joerg Welke, Dietmar Saur
  • Patent number: 8955618
    Abstract: A tool for crushing coke using high-pressure water is attached to a drilling rod through which water flows at high pressure. The tool further a control device for directing the water into either drilling nozzles or cutting nozzles depending on the rotational position of the control device. A switching element driven by water pressure engages the control device to cause the control the device to rotate from one rotational position to another rotational position, thereby changing the tool from cutting to drilling or vice versa.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 17, 2015
    Assignee: Ruhrpumpen GmbH
    Inventors: Wolfgang Paul, Kay Simon
  • Patent number: 8905891
    Abstract: A hand-held electric tool has a transmission that is situated in a transmission housing, which transmission is able to be switched over, via an operable switching device, at least between a first gear having a high torque and a second gear having a low torque. At least one intermediate gear is assigned to the transmission for the gear switchover, in which the electric tool is not durably operable, the operable switching device being developed to enable a gear switchover between the first and the second gear via the at least one intermediate gear.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: December 9, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Heiko Roehm
  • Patent number: 8887831
    Abstract: A power tool includes a housing, a motor contained in the housing, an output shaft extending proximate a front of the housing, an end effector coupled to the output shaft and configured to hold an accessory; and a transmission disposed in the housing between the motor and the output shaft. The transmission includes a variable ratio gear set configured to transmit power from the motor to the output shaft at a substantially variable speed ratio. The transmission may further include a constant ratio gear set configured to transmit power from the motor at a substantially constant speed ratio. The transmission may be automatically or manually shiftable between a first mode where it transmits power through the constant speed ratio gear set and a second mode where it transmits power through the variable speed ratio gear set.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: November 18, 2014
    Assignee: Black & Decker Inc.
    Inventors: Qiang J. Zhang, Beverly Matthews, Sankarshan Murthy
  • Patent number: 8890449
    Abstract: A lock state occurrence determination apparatus includes a counter, a reset device, a reference time changing device, a lock state determination device, and an invalidation device. The invalidation device performs, in a case where a false determination of occurrence of a lock state of a motor is caused by the lock state determination device due to an operation input to operate a rotation speed of the motor, at least one of a first invalidation operation to invalidate the lock state determination device and a second invalidation operation to invalidate continuation of a counting operation by the counter.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: November 18, 2014
    Assignee: Makita Corporation
    Inventors: Jiro Suzuki, Takuya Kusakawa
  • Publication number: 20140262389
    Abstract: A power tool and method for recording and playing back a motor parameter. The power tool includes housing, a motor, a trigger, a mode selector switch, and a controller. The trigger outputs an activation signal based on a user input. The mode selector switch is configured to receive a user mode selection indicating a recording mode, a normal operating mode, or a playback mode. The controller receives a mode selection signal from the mode selector switch indicating the selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter while the power tool is in the recording mode to generate a recorded motor parameter. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal from the trigger.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Milwaukee Electric Tool Corporation
    Inventors: Thomas G. Simeone, Matthew J. Mergener, Matthew Wycklendt
  • Patent number: 8820430
    Abstract: A power tool is described which has several modes of operation, such as drilling and screw driving modes. A clutch is provided with various settings for adjusting the torque at which the clutch interrupts power to a spindle. Furthermore, a two speed gearbox is provided for adjusting the speed of the spindle. All of these variables are controllable from a single adjustment member or collar thereby reducing necessary decisions needed to be made by an operator for a particular job in hand. For instance, when an operator wants the tool to operate in a screw driving mode, the gearbox is automatically set to drive the spindle at a low speed with the clutch being operable to interrupt drive when a torque force applied to the spindle exceeds a threshold value.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: September 2, 2014
    Assignee: Black & Decker Inc.
    Inventors: Andrew Walker, George Fung
  • Publication number: 20140242888
    Abstract: A hand power tool includes a drive unit, an electronic unit, and a switching unit. The switching unit includes at least one actuating element configured to activate and deactivate the drive unit. The switching unit also includes at least one switching element configured to be positioned in at least one first switching position to set at least one first operating mode. The at least one switching element is also configured to be positioned in at least one second switching position to set at least one second operating mode.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 28, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140231114
    Abstract: A power drill shiftable between at least two operational modes has a drill housing, a brushless dc motor in the housing, a drive spindle rotatable about an axis, and a chuck body adjacent the housing. Two elements interconnected by a screwthread are relatively axially shiftable on relative rotation about the axis, and gripping jaws between the chuck body and one of the elements are relatively shiftable radially of the axis on relative axial shifting of the elements. A drive sleeve rotatable by the motor about the axis is connected to the other of the elements. A member is shiftable between positions corresponding to the operational modes of the power drill. A sensor detects which mode the power drill is in, and motor-control means connected between the sensor and the motor adjusts a parameter of the motor as a function of the mode detected by the sensor.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 21, 2014
    Inventor: Peter SCHENK
  • Patent number: 8807239
    Abstract: A handheld power tool has a switchable gear having at least two gear stages which are engaged via an adjustable switching member, the switching member being held in a latching position with a latching member in a first gear stage and in an unlatched position in a second gear stage. The latching member is rotatably mounted in the housing within a limited angular section between two end stop positions.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: August 19, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Heiko Roehm
  • Publication number: 20140216774
    Abstract: A mechanical assembly for a power tool, and a power tool incorporating the mechanical assembly are provided. The mechanical assembly includes (i) a first member having a first axis and a first engagement portion inclined relative to the first axis, (ii) a second member having a second axis and a second engagement portion inclined relative to the second axis, wherein the first and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes; and wherein the first member is a ring gear and the second member is a central gear and the first and second engagement portions engage and disengage each other by movement of the second member within a space defined within the first member.
    Type: Application
    Filed: October 25, 2013
    Publication date: August 7, 2014
    Applicant: DEMAIN TECHNOLOGY PTY LTD
    Inventors: David Leigh Scrimshaw, Benjamine Luke Van der Linde, Paul Francis Connor, Paul Miller
  • Patent number: 8776910
    Abstract: Embodiments of clutches for electric pole saws, and related methods, are disclosed herein. An electric pole saw may include an electric motor, a drive shaft coupled between the electric motor and a cutting instrument, and a clutch coupled between the electric motor and the drive shaft. The clutch may include a motor portion having an exterior surface, a drive shaft portion having an exterior surface and forming a mated assembly when mated with the motor portion, and a spring around the motor and drive shaft portions. The spring may exert a holding force on the mated assembly, such that rotation of the motor portion in a first direction loosens the spring and reduces the friction holding force until a torque between the motor and drive shaft portions exceeds the holding force, causing rotation of the motor portion to be decoupled from rotation of the drive shaft portion.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 15, 2014
    Assignee: Blount, Inc.
    Inventors: Edgar A. Dallas, Evan Pickett
  • Publication number: 20140174776
    Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Michael-Andreas GRUNWALD, Marco PAWLOWSKI, Joerg WELKE, Dietmar SAUR
  • Publication number: 20140174775
    Abstract: A hand-held power tool has a torque-limiting unit with which a maximum torque transferred from a motor output shaft to a tool driver is adjustable by an operator. The torque-limiting unit has a spring system with spring elements having substantially similar characteristics (such as length, compression forces, etc.) and yet generating different spring forces.
    Type: Application
    Filed: February 11, 2013
    Publication date: June 26, 2014
    Inventor: James R. Parks
  • Publication number: 20140157961
    Abstract: An impact ratchet wrench includes a motor assembly, a transmission assembly, an impact assembly and a ratchet assembly which are arranged in a housing and connected with each other in turn. The motor assembly drives the transmission assembly and the transmission assembly includes a cylindrical gear train for providing an output at a first rotating speed or a second rotating speed lower than the first rotating speed. The impact assembly includes a striking member that is driven by the transmission assembly and an output member. The striking member of the impact assembly provides an increasing torque to the output member intermittently to drive the ratchet assembly.
    Type: Application
    Filed: July 1, 2013
    Publication date: June 12, 2014
    Applicant: Chervon (HK) Limited
    Inventor: Liang Chen
  • Publication number: 20140158390
    Abstract: An electric tool including: a motor; a tip tool configured to be rotationally driven by the motor; and a control unit configured to control the rotation of the motor and including a microprocessor and a memory unit, wherein the memory unit is configured to store control information by learning a use state of the motor, and wherein the motor is configured to be driven according to the stored control information.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 12, 2014
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Hironori Mashiko, Nobuhiro Takano
  • Publication number: 20140123413
    Abstract: A device for cleaning and polishing jewelry having a housing and a motor in the housing. A first gear is operatively engaged with the motor and has a drive shaft extending from the gear. The first gear is driven by the drive gear at a first speed. A second gear has a hole therein with the drive shaft extending therethrough. The second gear is operatively driven by the drive gear at a second speed and the hole.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 8, 2014
    Applicant: DePalma Enterprises Inc.
    Inventor: Robert De Palma
  • Publication number: 20140069672
    Abstract: A power tool includes: a motor configured to be driven based on one of a plurality of drive modes; a mode section switch; a control portion. The control portion is configured to operate responsive to a first operation to assign one or more drive modes preselected from the plurality of drive modes to the mode selection switch. A second operation different from the first operation is capable of manipulating the mode selection switch to select one drive mode from the one or more preselected drive modes, the control portion being further configured to control the motor based on the one drive mode selected by the mode selection switch.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 13, 2014
    Applicant: Hitachi Koki Co., Ltd.
    Inventors: Hironori Mashiko, Nobuhiro Takano, Tomomasa Nishikawa, Atsushi Nakagawa, Masanori Watanabe, Mizuho Nakamura, Katsuhiro Oomori
  • Publication number: 20140053688
    Abstract: A tool apparatus includes a substructure at least partially enclosing an electric motor, the electric motor in selective electric communication with a battery, a tool head in mechanical connection with the electric motor, a tool housing defining an inner cavity, wherein the housing is structured to receive the substructure within the inner cavity, and a superstructure having an inner taper configured to receive an outer taper of the tool housing to retain the tool housing relative to the substructure.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 27, 2014
    Applicant: Ingersoll-Rand Company
    Inventors: Jefferey Clifford Yaschur, Sean Christian Ely
  • Publication number: 20140053695
    Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.
    Type: Application
    Filed: May 10, 2013
    Publication date: February 27, 2014
    Applicant: Gauthier Biomedical, Inc.
    Inventor: Gauthier Biomedical, Inc.
  • Publication number: 20140054055
    Abstract: An apparatus is disclosed including a motor housing structured to receive at least a portion of an electric motor, a tool housing including a first half and a second half, wherein the tool housing defines an end taper, a tool attachment in mechanical communication with the electric motor, and a retention member including an inner taper structured to interface with the end taper of the tool housing to resist relative motion between the tool housing and the motor housing.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 27, 2014
    Applicant: Ingersoll-Rand Company
    Inventors: Jefferey Clifford Yaschur, Sean Christian Ely
  • Publication number: 20140054056
    Abstract: A handheld power tool has a switchable gear component actuatable by a selector switch. The gear component moves from a first operating position into a second operating position. The selector switch has a first switching position associated with the first operating position and a second switching position associated with the second operating position, and movable so that intermediate positions are assumed. A traveling coupling between the selector switch and the gear component has a spring exerting force onto the gear component in the first direction. A locking bolt is coupled to the selector switch in a positively driven manner. In the intermediate positions, the locking bolt is moved into a blocking bolt position blocking movement of the gear component out of the first operating position into the second operating position. When the selector switch is in the second switching position, the locking bolt is in a releasing bolt position.
    Type: Application
    Filed: February 13, 2013
    Publication date: February 27, 2014
    Applicant: Hilti Aktiengesellschaft
    Inventor: Hilti Aktiengesellschaft
  • Patent number: 8636080
    Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: January 28, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Michael-Andreas Grunwald, Marco Pawlowski, Joerg Welke, Dietmar Saur
  • Publication number: 20140020917
    Abstract: A fluid-powered tool actuator usable with a vehicle having an arm and a rotation link for rotation of the tool actuator in a first plane and being laterally tiltable in a second transverse plane. In some embodiments pressurized fluid is communicated using distribution channels and passageways internal to the actuator to limit use of external hydraulic lines. In some embodiments the tool actuator has certain components in a compressive pre-loaded state to reduce their fatigure failure during operation of the tool actuator under load.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 23, 2014
    Applicant: 1994 Weyer Family Limited Partnership
    Inventor: Dean R. Weyer
  • Publication number: 20140000923
    Abstract: A portable power tool, in particular a rotary and/or demolition hammer, has a pressure lever which is provided to execute a switching operation. A tolerance compensating unit is provided to effect tolerance compensation via a change in position of at least one contact surface.
    Type: Application
    Filed: December 15, 2011
    Publication date: January 2, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Juergen Dietel, Andreas Schlegel
  • Publication number: 20130333910
    Abstract: According to one embodiment, an impact tool includes: a motor; and a hammer that is connected to the motor and that has a striking-side surface; and an anvil that is journalled to be rotatable with respect to the hammer, that has a struck-side surface and that provides a striking power to a tip tool, wherein the motor is drivable in: a first driving mode in which the motor is continuously driven in a normal rotation; a second driving mode in which the motor is intermittently driven only in the normal rotation; and a third driving mode in which the motor is intermittently driven in the normal rotation and in a reverse rotation.
    Type: Application
    Filed: July 29, 2010
    Publication date: December 19, 2013
    Applicant: 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
  • Publication number: 20130327554
    Abstract: A power tool includes a chuck assembly having a driveline axis. A motor housing extends from an end cap portion to a drive end. The end cap portion includes an end cap bumper coupled to the end cap portion that extends radially outward with respect to the driveline axis. A handle extends from the motor housing along a handle axis and defines a battery receptacle. A mode selector ring is rotatably coupled to the housing assembly about the driveline axis between the chuck assembly and the motor housing drive end. The mode selector ring includes a drive end bumper extending radially outward with respect to the driveline axis. The power tool may rest upon a flat surface with only the end cap bumper and drive end bumper contacting the surface when a battery pack is inserted into the battery receptacle.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 12, 2013
    Inventors: Steven W. Hyma, Scott D. Bublitz, Jason R. Crowe
  • Publication number: 20130319707
    Abstract: The invention relates to a power drill, having a tool-clamping device that is fastened to a spindle shaft, having a torque clutch that includes an axially movable clutch plate on which an axial force is exerted by a plurality of compression springs that cooperate at least indirectly with an adjusting nut situated on a housing component. The compression springs are accommodated in first recesses embodied in the longitudinal direction of the housing component. A device for axially moving an axial bearing situated on the spindle shaft, is provided at the end of the spindle shaft oriented toward the tool-clamping device. According to the invention, on its side oriented toward the clutch plate, the device for axially moving the axial bearing has at least one actuating section that is situated in a second recess of the housing component and on the side oriented toward the clutch plate, cooperates with an adjusting element for the device.
    Type: Application
    Filed: August 6, 2013
    Publication date: December 5, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Heiko ROEHM, Tobias HERR
  • Publication number: 20130284475
    Abstract: To provide a hand-held power tool which is equipped with a motor and can be used in a normal driving mode for a tip end tool and also in driving modes other than the normal driving mode. A power tool in which a tip end tool is driven by a motor to thereby perform a predetermined machining process on a workpiece, wherein the motor is a dual rotor motor comprising: an inner rotor; an outer rotor; and a stator including a driving coil mechanism, with the inner rotor and the outer rotor being coaxially disposed.
    Type: Application
    Filed: November 28, 2011
    Publication date: October 31, 2013
    Applicant: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Kenichi Ota
  • Publication number: 20130255982
    Abstract: A power tool, in which a case that is connected to a housing and the case houses a reducer mechanism that decelerates an output of an electric motor and an impact mechanism that transmits an output of the reducer mechanism to a tip tool, is provided. The power tool further includes an inner cover that covers an opening of the case, a ring gear included in the reducer mechanism, a spindle that is rotatably supported by a bearing, and a space portion that is placed between the inner cover and the ring gear and in a periphery of the bearing, and capable of stocking grease. A through hole, which communicates with the inside and outside of the case through the space portion, is formed in the inner cover.
    Type: Application
    Filed: February 15, 2013
    Publication date: October 3, 2013
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Shigeru Takahashi, Katsuhiro Oomori, Tomomasa Nishikawa
  • Publication number: 20130245704
    Abstract: A surgical system which may include a controller, a data entry device, a powered surgical handpiece and a surgical tool adapted to couple to the surgical handpiece. The surgical handpiece can include motor direction control and feedback, safety stop features, stimulation and nerve integrity monitoring, a tool connector assembly configured to retain a variety of surgical tools and optional navigation and/or electric ratcheting features.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 19, 2013
    Applicant: MEDTRONIC XOMED, INC
    Inventors: Michael L. Koltz, Christopher L. Fair, Michael S. Ferrell, Andrzej Klimaszewski, David J. Little, II, Manfred K. Luedi, Gerould Norman, Robert K. Vaccaro
  • Publication number: 20130233584
    Abstract: A power tool includes a bit mounting unit, a motor, and a control unit. The bit mounting unit is configured to mount thereon a bit. The motor is configured to rotatingly drive the bit. The control unit is configured to control a drive of the motor. The control unit includes a storing unit configured to store a plurality of prescribed values affecting the drive of the motor and a division number by which a range of the plurality of prescribed values is divided. At least one of the range and the division number is arbitrarily settable.
    Type: Application
    Filed: January 28, 2013
    Publication date: September 12, 2013
    Applicant: HITACHI KOKI CO., LTD.
    Inventor: Hironori Mashiko
  • Patent number: 8528658
    Abstract: The invention relates to a power drill, having a tool-clamping device that is fastened to a spindle shaft, having a torque clutch that includes an axially movable clutch plate on which an axial force is exerted by a plurality of compression springs that cooperate at least indirectly with an adjusting nut situated on a housing component. The compression springs are accommodated in first recesses embodied in the longitudinal direction of the housing component. A device for axially moving an axial bearing situated on the spindle shaft, is provided at the end of the spindle shaft oriented toward the tool-clamping device. According to the invention, on its side oriented toward the clutch plate, the device for axially moving the axial bearing has at least one actuating section that is situated in a second recess of the housing component and on the side oriented toward the clutch plate, cooperates with an adjusting element for the device.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 10, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Heiko Roehm, Tobias Herr
  • Publication number: 20130220655
    Abstract: A tool having a housing assembly, which defines a handle, a motor assembly, a trigger assembly, a spindle and a transmission assembly. The motor assembly is received in the housing assembly and has an output shaft. The trigger assembly is coupled to the housing assembly and is configured for use in actuating the motor assembly. The transmission assembly transmits rotary power between the output shaft of the motor assembly and the spindle. The transmission assembly includes a planetary stage with an input sun gear, an output planet carrier and a compound planet gear having a first planet gear and a second planet gear coupled together for common rotation on the output planet carrier. The planetary stage is selectively operable in a first gear reduction and a second, relatively lower gear reduction in which the compound planet gear cooperates to produce at least one intermediate gear reduction within the planetary stage.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 29, 2013
    Inventor: David C. Tomayko
  • Publication number: 20130213680
    Abstract: A power tool includes a variable speed device which can be set in an auto mode or a manual mode. The power tool does not need the user to set the speed when it is operated at the auto mode. The power tool is reset to be the high-speed mode when it is activated. The speed is reduced along with the working load so as to output high torque, maintain the best working efficiency and protect the power tool under the operative status. The power tool can be set to the manual mode so as to work in a single type of function.
    Type: Application
    Filed: June 18, 2012
    Publication date: August 22, 2013
    Applicant: TRINITY PRECISION TECHNOLOGY CO., LTD
    Inventor: Ting-Kuang Chen
  • Publication number: 20130192860
    Abstract: A mode change mechanism for a power tool includes an actuator with a permanent magnet. The actuator is moveable between a first position for a first mode of operation, and a second position for a second mode of operation. A first positioning member is adjacent the first position composed of a ferromagnetic material to attract the permanent magnet. A second positioning member is adjacent the second position and composed of a ferromagnetic material to attract the permanent magnet. An electromagnet may be energized to move the actuator between the first position and the second position. When the electromagnet is not energized and the actuator is in the first position. the actuator is retained in the first position. When the electromagnet is not energized and the actuator is in the second position, the actuator is retained in the second position. When the electromagnet is energized, the actuator moves between the first and second positions.
    Type: Application
    Filed: March 13, 2013
    Publication date: August 1, 2013
    Applicant: BLACK & DECKER INC.
    Inventor: BLACK & DECKER INC.
  • Publication number: 20130186662
    Abstract: Implementations of the present invention relate to system and apparatus for increasing and lowering speed and torque transferred to a drive shaft from a drive source. In particular, the present disclosure relates to a system that allows engagement and disengagement of low and high gears with a single shifter that can move in a single direction to shift between gears.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 25, 2013
    Applicant: LONGYEARTM, INC.
    Inventor: LongyearTM, Inc.
  • Publication number: 20130186666
    Abstract: A rotary tool is provided with a mode selecting part that selects one operating mode from a predetermined plurality of operating modes when a mode switching button is pressed. The plurality of operating modes include: a first auto stop mode where a motor rotates only for a first time period after an impacting operation is detected; and a second auto stop mode where the motor rotates only for a second time period which is shorter than the first time period after the impacting operation is detected.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 25, 2013
    Applicant: MAX CO., LTD.
    Inventor: MAX CO., LTD
  • Publication number: 20130180745
    Abstract: A mechanical assembly for a power tool, and a power tool incorporating the mechanical assembly are provided. The mechanical assembly includes (i) a first member having a first axis and a first engagement portion inclined relative to the first axis, (ii) a second member having a second axis and a second engagement portion inclined relative to the second axis, wherein the first and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes; and wherein the first member is a ring gear and the second member is a central gear and the first and second engagement portions engage and disengage each other by movement of the second member within a space defined within the first member.
    Type: Application
    Filed: March 4, 2013
    Publication date: July 18, 2013
    Applicant: DEMAIN TECHNOLOGY PTY LTD
    Inventor: DEMAIN TECHNOLOGY PTY LTD