End Mill (e.g., Router, Etc.) Patents (Class 409/182)
  • Publication number: 20100126627
    Abstract: A router includes a base, a motor housing supported by the base for movement along a first axis, and an adjustment mechanism having a shaft, with a thread portion, connected to the motor housing for rotation about a second axis. The adjustment mechanism also includes a unitarily formed lock mechanism supported by the base. The lock mechanism includes a thread-engaging member that, when engaged with the thread portion, causes small changes to the position of the housing relative to the base in response to rotation of the shaft. The lock mechanism is movable between an engaged position, in which the thread-engaging member engages the thread portion, and a disengaged position, in which the thread-engaging member disengages the thread portion and the housing is freely movable relative to the base to provide course adjustment of the position of the housing relative to the base.
    Type: Application
    Filed: September 8, 2009
    Publication date: May 27, 2010
    Inventors: Jay A. Goddard, Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey Hessenberger, Christopher Berg, Jeffrey Holly
  • Publication number: 20100092261
    Abstract: The milling tool (1) has a spindle (2, 3), which is mounted in a housing (8) and carries a milling head (14) fitted with cutting inserts (15). Arranged in the drive train of the milling head (14) is a torque-transmitting resilient coupling (13). The spindle (2, 3) actually comprises spindle parts (2, 3) that are connected by a plug-in connection via a bearing bush (9, 10) and can be turned with respect to each other, and the coupling (13) is arranged between these spindle parts. The resilient coupling comprises a helical spring (13) that is fastened by each of its ends to a spindle part (2, 3). The milling head (14) is fitted with sharp-edged cutting inserts (15), which have a wedge angle of 40-75° and have on the milling head (14) a position in which they operate with a positive rake angle of at least 6° and a clearance angle of at least 6°.
    Type: Application
    Filed: August 28, 2007
    Publication date: April 15, 2010
    Inventor: Stephan Rieth
  • Patent number: 7686046
    Abstract: The present invention is directed to a mechanism and method for providing above the table securing/unsecuring of a router motor housing. The mechanism of the present invention employs a mechanical connection included on a pivot member to couple with a wrench device extended through the tabletop. The mechanism permits a user to adjust or release the motor housing without having to reach under the table surface.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: March 30, 2010
    Assignee: Black & Decker Inc.
    Inventors: Greg K. Griffin, Derrick Kilbourne, Randy G. Cooper, Ginger L. Allen
  • Patent number: 7677281
    Abstract: Embodiments of the present invention are directed to a power router tool having an output shaft with a mechanism for attaching a working tool for engaging a work portion for performing a work operation thereon, comprising a generally cylindrical housing having a motor therein configured to drive the output shaft during operation, the housing having a nose portion from which the output shaft extends and a rear end portion opposite the nose portion, at least one switch in the housing operatively connected to the motor for controlling the operation thereof, an adjustable and removable depth guide mounted to the nose portion of the housing, the depth guide having an axial portion that is generally parallel to the output shaft and an end portion that is generally perpendicular to the output shaft, the axial and end portions having a construction that provided minimal visual obstruction during use.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: March 16, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Timothy Baker, Michael Beruscha, David Clarke, Robert Glenn, Kevin Wasielewski
  • Patent number: 7677280
    Abstract: A power tool, such as, for example a router. In some aspects, a router includes a base, a motor housing supported by the base, a motor supported by the motor housing, and a hand grip forming at least a portion of one of the base and the housing and being contoured to fit a hand of an operator. The one of the base and the housing may be grasped by the operator when the operator grasps the hand grip to control movement of the router on the work piece surface. In other aspects, a router includes a base, a motor housing supported by and movable relative to the base, and a motor supported by the motor housing. The base is contoured to fit a hand of an operator and includes at least one of a slot or a ridge to provide improved gripping for an operator.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: March 16, 2010
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey C. Hessenberger, Christopher Berg, Jeffrey S. Holly
  • Patent number: 7669620
    Abstract: A router includes a base for supporting the router on a work piece surface, a motor housing coupled to the base for movement along a first axis relative to the base, a motor supported by the housing and operable to drive a tool element, and a cantilevered shaft rotatable about a second axis and oriented substantially parallel with the first axis and offset from the first axis. The shaft includes a first end supported by the motor housing, a second end, and a threaded portion between the first and second ends. The threaded portion is engaged with the base. Rotation of the shaft about the second axis causes movement of the housing relative to the base along the first axis.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: March 2, 2010
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey C. Hessenberger, Christopher Berg, Jeffrey S. Holly
  • Patent number: 7654294
    Abstract: An apparatus for providing convenient grasping of a router adjacent base/motor housing includes a base for supporting a motor housing for driving a working tool. A generally L-shaped handle including a connecting member and grasping member is connected to the base for permitting a user to comfortably manipulate the power tool adjacent the motor housing. In further aspect, a removable a generally L-shaped handle includes a channel extending through the handle for directing dust and debris away from the working tool.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: February 2, 2010
    Assignee: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne, Jeremy D. Leasure
  • Publication number: 20100018609
    Abstract: The invention relates to a hand held power tool, such as a router, for use with an operative element to treat a work piece over a treatment depth from a face of the work piece. The power tool includes a base positionable in use adjacent the work piece and a fastening assembly for holding the operative element, the fastening assembly being rotatable about an operative axis and being movable relative to the base in the direction of the operative axis. The power tool also includes primary power drive means including a motor being operable to rotate the fastening assembly about the operative axis and secondary power drive means including a motor being operable to move the fastening assembly relative to the base in the direction of the operative axis.
    Type: Application
    Filed: April 26, 2007
    Publication date: January 28, 2010
    Applicant: DEMAIN TECHNOLOGY PTY LTD.
    Inventors: Benjamin Luke Van Der Linde, David Leigh Scrimshaw, Paul Davies, Paul Miller, Paul Francis Connor
  • Patent number: 7637294
    Abstract: A router includes a base and a motor housing supported by the base and movable relative to the base. One of the base and the motor housing defines a depth adjustment column having an open end. The router also includes a motor supported by the motor housing and operable to drive a tool element, a depth adjustment mechanism at least partially positioned in the depth adjustment column and being operable to adjust the cutting depth of the tool element, and a flexible shield connectable to the base in a position to cover the open end and to allow access to the depth adjustment mechanism through the open end.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: December 29, 2009
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Jeffrey C. Hessenberger, Jeffrey S. Holly, Melissa Ottens-Rendon, Christopher Berg
  • Patent number: 7600579
    Abstract: The present invention is a method and device for a hand power tool which includes a housing, a storage compartment within the housing, a wrench for manipulating a collet bit attachment structure, a portion of the wrench sized to fit within the storage compartment, a first spring extending into the storage cavity and positioned to bias the portion of the wrench against an inner wall of the storage compartment and a protuberance positioned on the housing, such that when the portion of the wrench is partially within the cavity, the protuberance causes a first misalignment between the longitudinal axis of the storage compartment and the longitudinal axis of the wrench and when the portion of the wrench is fully within the cavity, the protuberance does not cause a misalignment between the longitudinal axis of the storage compartment and the longitudinal axis of the wrench as large as the first misalignment.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: October 13, 2009
    Assignee: Robert Bosch GmbH
    Inventor: Kevin Wasielewski
  • Patent number: 7588400
    Abstract: A router depth adjustment device includes a shaft with a first and a second end, a handle disposed on the first end of the shaft, for rotating the shaft, and a mechanical connection disposed on the second end. The mechanical connection is configured to couple with a corresponding mechanical connection on a depth adjustment shaft of a router. A depth adjustment indexing system includes an adjustment knob slidably mounted on the shaft and an indexer pivotally mounted to the adjustment knob. The adjustment knob and the indexer are capable of pivoting independently and pivoting simultaneously. The adjustment knob is configured such that rotation of the adjustment knob rotates the shaft.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: September 15, 2009
    Assignee: Black & Decker Inc.
    Inventor: Michael K. Taylor
  • Patent number: 7578325
    Abstract: A hybrid router is disclosed that is capable of operating as a fixed or a plunge router wherein the preferred embodiment thereof comprises a motor assembly that has a housing containing a motor as well as operating handles attached to the housing and operating controls for operating the motor. The motor assembly can be removably installed in either a fixed base assembly or a plunge base assembly. The preferred embodiment has an adjustment knob that is located on the motor assembly that engages depth adjustment mechanisms of either the fixed and plunge base assemblies when the motor assembly is installed in the respective base assemblies.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: August 25, 2009
    Assignee: Credo Technology Corporation
    Inventors: John B. Freese, Bjorn J. Gunderson, Robert H. Bruno
  • Publication number: 20090173410
    Abstract: A router includes a base for supporting the router on a work piece surface, a motor housing coupled to the base for movement along a first axis relative to the base, a motor supported by the housing and operable to drive a tool element, and a cantilevered shaft rotatable about a second axis and oriented substantially parallel with the first axis and offset from the first axis. The shaft includes a first end supported by the motor housing, a second end, and a threaded portion between the first and second ends on the outer periphery of the shaft. The threaded portion is engaged with the base. Rotation of the shaft about the second axis causes movement of the housing relative to the base along the first axis.
    Type: Application
    Filed: March 17, 2009
    Publication date: July 9, 2009
    Inventors: Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey C. Hessenberger, Christopher Berg, Jeffrey S. Holly
  • Patent number: 7556070
    Abstract: A power tool, such as, for example a router. In some aspects, a router includes a base, a housing and a hand grip attachable to one of the base and the housing, and the hand grip may be contoured to fit a hand of an operator and may be at least partially formed of an elastomeric material. In some aspects, a router includes a housing and a hand grip connected to the housing. In some aspects, a router is operable above a workpiece and under a table. In some aspects, a router includes a base, a motor housing and an adjustment mechanism supported by at least one of the base and the motor housing for adjusting the position of the motor housing relative to the base. In some aspects, a case for a router includes a base plate operable to support a router with a bit attached to the router.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: July 7, 2009
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey C. Hessenberger, Christopher Berg, Jeffrey S. Holly
  • Patent number: 7552749
    Abstract: A power tool has a housing, a tool, and a guard embracing the tool that is coupleable to the housing and axially adjustable relative, so that it is safer to handle because the guard is designed as a support foot and on its outside has a jacket piece of plastic with a nonslip, rough outer surface.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: June 30, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Sven Kageler, Marco Braun, Rezwan Iskandar Jalil, Mohamed Zaidi Ahmad
  • Patent number: 7547167
    Abstract: The present invention relates to a hand-held power tool. The hand-held power tool includes a housing with cavity. A drawer is provided within the cavity. A flexible member is coupled to the drawer. Furthermore, a latching mechanism with first and second members are included. The first member of the latching mechanism is coupled to the housing and the second potion of the latching mechanism is incorporated into the flexible member.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: June 16, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Brad M. Baber, Dean Peterson, Harald Krondorfer
  • Publication number: 20090133559
    Abstract: A power tool comprising a housing displaceably mounted to a foot plate, a blade, a motor, an electric switch and an interlock for controlling movement of the housing with respect to the foot plate. The interlock has a control button mounted to one of the housing or foot plate which cooperates with a channel fixed in relation to the other of the housing or foot plate. The control button can select between a plunge cut mode wherein the blade can protrude below the foot plate, or a blade change mode wherein the blade is prepared for a blade change operation. The channel comprises a major leg in communication with a minor leg. Cooperation between the control button and the major leg selects the plunge cut mode. Cooperation between the control button and the minor leg selects the blade change mode. The interlock may also comprise a housing lock and a spindle lock.
    Type: Application
    Filed: October 6, 2008
    Publication date: May 28, 2009
    Applicant: Black & Decker Inc.
    Inventors: Paul Sargeant, Scott Keenlyside, Roger Thomas, Rainer Herting
  • Publication number: 20090114313
    Abstract: An apparatus for providing convenient grasping of a router adjacent base/motor housing includes a base for supporting a motor housing for driving a working tool. A generally L-shaped handle including a connecting member and grasping member is connected to the base for permitting a user to comfortably manipulate the power tool adjacent the motor housing. In further aspect, a removable a generally L-shaped handle includes a channel extending through the handle for directing dust and debris away from the working tool.
    Type: Application
    Filed: September 25, 2008
    Publication date: May 7, 2009
    Applicant: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne, Jeremy D. Leasure
  • Publication number: 20090116923
    Abstract: A router is provided, which includes a main body with a pair of coupling hollows, and a base having a pair of guide shafts standing on. Each of the pair of coupling hollows has an opening facing downward through which a corresponding guide shaft is inserted. A linear ball bearing which serves as a bushing to support a corresponding guide shaft is provided in a lower portion of at least one of the coupling hollows. With this linear ball bearing, the guide shaft can be slid in the coupling hollow smoothly.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 7, 2009
    Applicant: MAKITA CORPORATION
    Inventors: Takuji Kimura, Atsushi Utsuno
  • Publication number: 20090114312
    Abstract: A router includes a motor housing containing a motor and coupled to a tool holder configured to receive a tool bit that is driven rotationally by the motor. A base receives the motor housing for movement in an axial direction along a longitudinal axis of the motor housing. A depth adjustment mechanism enables adjustment of a position of the motor housing relative to the base along the axial direction. The depth adjustment mechanism has a threaded shaft rotationally coupled to one of the motor housing and the base and a thread engaging member coupled to the other of the motor housing and the base. The threaded shaft is engageable with the thread engaging member. A seam defined in the base adjacent to the depth adjustment mechanism.
    Type: Application
    Filed: December 17, 2007
    Publication date: May 7, 2009
    Applicant: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne
  • Patent number: 7524151
    Abstract: A power tool has a base assembly and a housing which is vertically movable relative to the base. The housing has a plurality of positioning components. A cutting depth adjustment mechanism is mounted on the base assembly and includes a support bracket and a sliding piece. The sliding piece is horizontally movable relative to the support bracket between a first position and a second position. When in the first position, the sliding piece is engaged with one of the positioning components and, when in the second position, the sliding piece is disengaged with the positioning components.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: April 28, 2009
    Assignee: Chervon Limited
    Inventor: Yongbing Zhu
  • Patent number: 7523772
    Abstract: A power tool, such as, for example a router. In some aspects, a router includes a base, a housing and a hand grip attachable to one of the base and the housing, and the hand grip may be contoured to fit a hand of an operator and may be at least partially formed of an elastomeric material. In some aspects, a router includes a housing and a hand grip connected to the housing. In some aspects, a router is operable above a workpiece and under a table. In some aspects, a router includes a base, a motor housing and an adjustment mechanism supported by at least one of the base and the motor housing for adjusting the position of the motor housing relative to the base. In some aspects, a case for a router includes a base plate operable to support a router with a bit attached to the router.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: April 28, 2009
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey C. Hessenberger, Christopher Berg, Jeffrey S. Holly
  • Patent number: 7524150
    Abstract: A router includes a motor housing, from the underside of which a tool fitting for a milling tool connected with a drive extends, and which includes a guide unit—with at least two guide columns—for the motor housing, which is displaceably accommodated on the first guide column in at least one bearing, and on the second guide column in at least a second bearing. The at least one bearing is designed at least partially as a rolling element guide.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 28, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Adolf Zaiser, Heiko Roehm
  • Patent number: 7497649
    Abstract: A fixed base router has a base supporting an upright wall. A motor based driver assembly is received in a cylindrical interior space delimited by the wall and movable along a spiral path. A read-out system includes a position sensor that detects and applies the displacement of the driver assembly along the spiral path to a processor based circuit, which in turn generates a signal indicating the displacement and a display device showing up the displacement for visual inspection. The read-out system allows for precise positioning the driver assembly and thus setting a cutting depth of a tool bit carried on and driven by the driver assembly so that adjustment of positioning of the tool bit is made simple, readable and precise.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: March 3, 2009
    Assignee: Positec Power Tools (Suzhou) Co. Ltd.
    Inventor: Hongfeng Zhong
  • Patent number: 7490642
    Abstract: A router depth adjustment mechanism for minimizing rapid course depth adjustment for standard and plunge routers. Routers with rapid or course adjustment mechanisms may permit a router motor housing to drop suddenly, if the user is inattentive. Sudden adjustments may result in damage to the router and potentially contact the user. The mechanism of the present invention includes a threaded shaft and a biased thread engaging member which may be disengaged for rapid adjustment. A restraining device and/or a break may be included to minimize the rate of change.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: February 17, 2009
    Assignee: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne
  • Patent number: 7484915
    Abstract: A router includes a motor housing, a motor provided in the motor housing driving a collet for turning a cutting tool, and a base for resting on a workpiece. Support columns mounted to the base allow the motor housing to move relative to the base in a direction parallel to the rotational axis of the cutting tool. The support columns are spaced apart in a direction transverse to the rotational axis, and the motor housing is connected to the support columns by means of support members spaced apart in a direction parallel to the rotational axis.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: February 3, 2009
    Assignee: Black & Decker Inc.
    Inventor: Nigel Robson
  • Publication number: 20090010730
    Abstract: A router includes a base and a motor housing supported by the base and movable relative to the base. One of the base and the motor housing defines a depth adjustment column having an open end. The router also includes a motor supported by the motor housing and operable to drive a tool element, a depth adjustment mechanism at least partially positioned in the depth adjustment column and being operable to adjust the cutting depth of the tool element, and a flexible shield connectable to the base in a position to cover the open end and to allow access to the depth adjustment mechanism through the open end.
    Type: Application
    Filed: September 15, 2008
    Publication date: January 8, 2009
    Inventors: Jeffrey C. Hessenberger, Jeffrey S. Holly, Melissa Ottens-Rendon, Christopher Berg
  • Patent number: 7473058
    Abstract: A power tool having a hollow base member and a motor housing vertically, movably received in the base member. A vertical toothed bar is fixed on an outside wall of the motor housing. A gear shaft is horizontally mounted on the base member and a worm shaft is vertically mounted on the base member. A link gear that engages the toothed bar and a lock gear are both mounted on the gear shaft. The lock gear is axially movable between a first position and a second position and has a tendency to be in the first position. When the lock gear is in the first position, the lock gear engages a worm mounted on the worm shaft and is circumferentially fixed relative to the link gear. When the lock gear is in the second position, the lock gear disengages the worm and is rotatable relative to the link gear.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 6, 2009
    Assignee: Chervon Limited
    Inventor: Yongbing Zhu
  • Patent number: 7467651
    Abstract: The present invention is directed toward a quick attach and detach mechanism for a tool attachment such as a router attachment for a router. The attachment system includes a mounting adapter which may be integrally formed with the router housing or attached to the router housing as a bolt-on plate. The system works by vertically installing the tool attachment with the mounting adapter and then twisting to secure the tool attachment to the mounting adapter. A rotational lock is provided to prevent the tool attachment from inadvertently backing off or coming loose. This lock can be manually actuated to allow for quick detachment when desired. The tool attachment system is shown in association with a router which has several disclosed benefits, however there may also be applications of the system in other types of tool attachments for which coverage is also sought.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: December 23, 2008
    Assignee: Nomis LLC
    Inventors: Joe Karkosch, John R. Kochanski, Edward Adkins, Patrick J. Barkdoll
  • Patent number: 7455088
    Abstract: A hand router has a housing (12) and a tool (22) situated in the housing in a rotary drivable fashion, which it is possible to operate in the intended manner by means of a suction air flow, in particular by means of a vacuum cleaner. The hand router is particularly powerful because a radial turbine wheel (32) equipped with intake and outlet gratings (44, 48) is used as the drive. The housing (12) is made up of tube-like sections (13, 14, 15), in particular that can be grasped by an operating hand, which it is possible to connect with one another by means of flanges (36, 38).
    Type: Grant
    Filed: February 21, 2005
    Date of Patent: November 25, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Hirschburger, Frank Fuchs, Martin Kraus
  • Patent number: 7455488
    Abstract: A hand power tool has a housing and a cutting tool bit, as well as a guard, which embraces the tool bit and is coupleable to the housing and axially adjustable relative to it, wherein the housing and the guard means, in a first adjusting position, are positionable axially freely and in a second adjusting position, guided by an adjusting element are positionable axially finely and lockably to one another, wherein the adjusting element is configured to prevent free axial displacement of the guard in the second adjusting position.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 25, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Carl Christian Carlson, Marco Braun, Roshilawati Razlan, Rezwan Iskandar Jalil, Wooi Ken Thong
  • Patent number: 7451791
    Abstract: The present invention is directed to an apparatus for providing convenient grasping of a router adjacent base/motor housing includes a base for supporting a motor housing for driving a working tool. A generally L-shaped handle including a connecting member and grasping member is connected to the base for permitting a user to comfortably manipulate the power tool adjacent the motor housing. In further aspect, a removable a generally L-shaped handle includes a channel extending through the handle for directing dust and debris away from the working tool.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: November 18, 2008
    Assignee: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne, Jeremy D. Leasure
  • Patent number: 7448420
    Abstract: A router sub-base and method is disclosed, utilizing a pad of material attached to a router base, to flush cut projections from a wooden surface, smooth areas of a wooden surface, or remove a volume of wood to custom shape a wooden workpiece for special applications, in which a user may manually operate the router to mill wood, using a portion of the existing wooden workpiece surface as a guide to control cutting.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: November 11, 2008
    Inventor: John F. Mair
  • Patent number: 7438095
    Abstract: A power tool, such as, for example a router. In some aspects, a power tool includes a motor, a motor housing defining an air outlet, and a shield connectable to the motor housing and positionable to at least partially cover the air outlet to inhibit movement of debris into the motor housing through the air outlet. In some aspects of the invention, a router includes a base, a motor housing supported by the base, at least one of the base and the motor housing defining a depth adjustment column having an open end, a motor supported by the motor housing and operable to drive a tool element, a depth adjustment mechanism supported in the depth adjustment column and operable to adjust the cutting depth of the tool element, and a flexible shield connectable to the base in a position to cover the open end and to allow access to the depth adjustment mechanism through the open end.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: October 21, 2008
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Jeffrey C. Hessenberger, Jeffrey S. Holly, Melissa Ottens-Rendon, Christopher Berg
  • Publication number: 20080206008
    Abstract: A power tool including: a base slidable on a workpiece, and an opening provided through the base; a main unit supported to the base and movable in a first direction substantially perpendicular to the base, the main unit including an electric motor; a cutter driven by the electric motor, the cutter being capable of protruding through the opening from the base; a stopper pole supported to a housing coupled to the main unit, the stopper pole being movable in the first direction, the stopper pole having one end protruding from the housing toward the base, thereby regulating a moving distance of the cutter; a digital display unit including a moving distance detection portion for detecting a moving distance of the stopper pole and a digital display portion for displaying the moving distance; and a dust prevention member provided between a part of the stopper pole protruding toward the base and the moving distance detection portion, thereby preventing dust from entering into the housing.
    Type: Application
    Filed: May 5, 2008
    Publication date: August 28, 2008
    Inventors: Akira ONOSE, Hiroki Uchida
  • Publication number: 20080199269
    Abstract: The invention relates to an auxiliary device for a portable tool, comprising a receptacle (2) for a motor-operated portable tool (22) having an output shaft (26), and comprising a drive train (9) which has a tool receptacle (8), to be opened and closed by rotation, and which can be connected to the output shaft (26) of the motor-operated portable tool (22) via a coupling device. Provision is made for the auxiliary device (1) for the portable tool to have an anti-rotation locking means (13) acting on the drive train (9).
    Type: Application
    Filed: October 5, 2006
    Publication date: August 21, 2008
    Inventors: Wolfgang Adamczak, Marco Braun, Zaidi Ahmad Mohd, James B. Stevens
  • Publication number: 20080193240
    Abstract: A power tool having a hollow base member and a motor housing vertically, movably received in the base member. A vertical toothed bar is fixed on an outside wall of the motor housing. A gear shaft is horizontally mounted on the base member and a worm shaft is vertically mounted on the base member. A link gear that engages the toothed bar and a lock gear are both mounted on the gear shaft. The lock gear is axially movable between a first position and a second position and has a tendency to be in the first position. When the lock gear is in the first position, the lock gear engages a worm mounted on the worm shaft and is circumferentially fixed relative to the link gear. When the lock gear is in the second position, the lock gear disengages the worm and is rotatable relative to the link gear.
    Type: Application
    Filed: January 8, 2008
    Publication date: August 14, 2008
    Applicant: CHERVON LIMITED
    Inventor: Yongbing Zhu
  • Publication number: 20080175683
    Abstract: A power tool has a base assembly and a housing which is vertically movable relative to the base. The housing has a plurality of positioning components. A cutting depth adjustment mechanism is mounted on the base assembly and includes a support bracket and a sliding piece. The sliding piece is horizontally movable relative to the support bracket between a first position and a second position. When in the first position, the sliding piece is engaged with one of the positioning components and, when in the second position, the sliding piece is disengaged with the positioning components.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 24, 2008
    Applicant: CHERVON LIMITED
    Inventor: Yongbing Zhu
  • Patent number: 7402008
    Abstract: The present invention is directed to an elevating mechanism, in particular to an elevating mechanism for routers, is configured for easy micro adjustment and coarse or macro adjustment. In an embodiment, a power tool includes a base configured to adjustably receive a motor housing for operating a working tool. A worm drive is pivotally coupled, in an eccentric configuration, to an eccentric lever. The eccentric lever is adjustably coupled to at least one of the housing or the base such that the eccentric lever is operable to cause the worm drive to be positioned into an engaged position with a rack assembly and a released position wherein the worm drive is remote from the rack assembly. The elevating mechanism is operable to permit rotational micro adjustment and macro manual adjustment wherein the worm drive is remote from the rack assembly for permitting coarse adjustment of the motor housing with respect to the base.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: July 22, 2008
    Assignee: Black & Decker Inc.
    Inventors: Alan Phillips, John W. Schnell
  • Publication number: 20080156396
    Abstract: The present invention is directed to an apparatus for providing convenient grasping of a router adjacent base/motor housing includes a base for supporting a motor housing for driving a working tool. A generally L-shaped handle including a connecting member and grasping member is connected to the base for permitting a user to comfortably manipulate the power tool adjacent the motor housing. In further aspect, a removable a generally L-shaped handle includes a channel extending through the handle for directing dust and debris away from the working tool.
    Type: Application
    Filed: December 8, 2003
    Publication date: July 3, 2008
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne, Jeremy D. Leasure
  • Publication number: 20080152449
    Abstract: A router has a housing, from the underside of which a tool fitting for a milling tool connected with a drive extends, and a device for adjusting the milling depth, which is located in a tower of the housing, the device extending essentially in the direction of a vertical axis of the router and including an adjusting knob. It is provided that the device extends, at the maximum, to a plane formed by a top side of the housing.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20080152450
    Abstract: A router has a housing, which is displaceably accommodated between a starting position and an end position for adjustment relative to a base plate, and a device for displaying the position of the housing.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20080152448
    Abstract: A router operatable by an operator has a motor housing including at least one handle, a drive motor, a milling tool connected with the drive motor, a tool fitting provided for the milling tool and extending from an underside of the housing, a cooling device including an intake device for drawing cooling air in through intake openings in the motor housing, a cooling air guide for directing cooling air through the motor housing and, and an exhaust device for exhausting cooling air out of the motor housing, arranged so that the cooling air guide leads into the exhaust device and configured such that when the router is used as intended, the cooling air is only exhausted in at least one region of the router pointing away from the operator.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Patent number: 7370679
    Abstract: A power tool, such as, for example a router. In some aspects, a router includes a base, a housing and a hand grip attachable to one of the base and the housing, and the hand grip may be contoured to fit a hand of an operator and may be at least partially formed of an elastomeric material. In some aspects, a router includes a housing and a hand grip connected to the housing. In some aspects, a router is operable above a workpiece and under a table. In some aspects, a router includes a base, a motor housing and an adjustment mechanism supported by at least one of the base and the motor housing for adjusting the position of the motor housing relative to the base. In some aspects, a case for a router includes a base plate operable to support a router with a bit attached to the router.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: May 13, 2008
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Randy McDonald, Dale Borchardt, Troy Thorson, Jeffrey C. Hessenberger, Christopher Berg, Jeffrey S. Holly
  • Patent number: 7367760
    Abstract: A power tool has a base, a main unit, a cutter, a bolt, an engagement member, and a unit. The base has a sliding surface slidable on a workpiece, another surface opposite to the sliding surface, and an opening in the base. The main unit is movable in a first direction substantially perpendicular to the sliding surface. The cutter is driven by a electric motor in the main unit to protrude through the opening from the sliding surface during an operation. The bolt extends in the first direction on the first side, a first male thread, and one end supported by the base. The bolt is rotatable about the longitudinal axis. The engagement member has a first female thread threadably engaged with the male thread. The engagement member is movable between an engaged position with the boot and a disengaged position therewith. The unit maintains the engagement member at the disengaged position in a second direction.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: May 6, 2008
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Akira Onose, Hiroki Uchida
  • Patent number: 7363950
    Abstract: The tilt base for a handheld router tool allows a router secured therein to be tilted equally in opposite directions from a position in which the rotational axis is normal to the underlying base plate and workpiece. The tilt base includes two opposed tilt clearance areas formed in the lower skirt portion thereof, with two depending opposed pivot attachment lugs or ears separating the two tilt clearance areas. A base plate includes a pair of opposed upstanding pivot attachment fittings, to which the pivot attachment lugs of the router base attach. The base plate may be formed of opaque, translucent, or transparent material, and includes an elongate slot for cutting bit clearance when the router is tilted. The operator of the tool may quickly and easily adjust the tilt angle of the router and its base to provide angled or beveled cuts in a workpiece as desired.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: April 29, 2008
    Inventor: Robert E. Wielechowski
  • Patent number: 7344141
    Abstract: A collet system for a rotary tool includes a collet for receiving a bit; a wrench assembly for engaging the collet, the wrench assembly moving along an axis extending axially through the collet between a first position where the wrench assembly is disengaged from the collet and a second position where the wrench assembly is engaged with the collet; and an adjusting collar coupled to the wrench assembly for moving the wrench assembly between the first position and the second position, wherein upon moving the wrench assembly to the second position, the adjusting collar is rotatable for rotating the wrench assembly to tighten and loosen the collet.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: March 18, 2008
    Assignee: Black & Decker Inc.
    Inventors: John W. Schnell, Daniel Paxton Wall
  • Patent number: 7334614
    Abstract: A depth adjustment mechanism, disposed on a router, is enabled using a worm drive that includes a shaft member engaging with a rack member. The shaft member couples with a sleeve disposed on a base of the router. The rack member is coupled with a motor casing of the router. The depth adjustment mechanism enables a user selectable engagement of the shaft member with the rack member. A rotating member, which is coupled with the shaft member, is engaged by a user to displace the shaft member relative to the rack member. The selective engagement of the shaft member with the rack member and rotation enabled by the rotating member enables continuous metered depth adjustment for the router.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: February 26, 2008
    Assignee: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne
  • Patent number: 7334613
    Abstract: The present invention is directed to a mechanism and method for providing above the table securing/unsecuring of a router motor housing. The mechanism of the present invention employs a mechanical connection included on a pivot member to couple with a wrench device extended through the tabletop. The mechanism permits a user to adjust or release the motor housing without having to reach under the table surface.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: February 26, 2008
    Assignee: Black & Decker Inc.
    Inventors: Greg K. Griffin, Randy G. Cooper, Derrick Kilbourne, Ginger L. Allen
  • Patent number: RE40304
    Abstract: An angle attachment of a hand-held power tool, such as a spiral cutting tool, includes an angle attachment housing having an open first end adapted to be attached to the motor housing of the power tool. An alignment bearing is mounted in the angle attachment housing and adapted to receive and support a first shaft having a first shaft gear mounted thereon. An attachment shaft is mounted in the angle attachment housing at an angle, e.g., a right angle, to the first shaft. The attachment shaft includes an attachment shaft gear mounted thereon which is engaged with the first shaft gear. One or more attachment shaft bearings are mounted in the angle attachment housing to support the attachment shaft for rotational movement thereof. The first shaft is coupled to a motor shaft of the power tool before the angle attachment housing is attached to the power tool motor housing.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: May 6, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Robert K. Kopras, James Stanley