Quick Change Socket Patents (Class 279/904)

Cross-Reference Art Collections

With ball detent (Class 279/905)
  • Patent number: 11771570
    Abstract: A securing arrangement of a prosthetic hand on a forearm socket with a receiving frame that can be fixed to the forearm socket, the prosthetic hand being fixed to said receiving frame, wherein the receiving frame is designed to feature radially-directed openings through which the securing elements protrude. The securing elements positively engage with a proximal connection section of the prosthetic hand.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: October 3, 2023
    Assignee: OTTO BOCK HEALTHCARE PRODUCTS GMBH
    Inventors: Stefan Fitz, Klaus Weissmayer
  • Patent number: 11154974
    Abstract: The present embodiment discloses a hand-held tool and a clamping device thereof. The clamping device of a hand-held tool includes: a mounting base; a clamping unit configured to fasten a working tool in an axial direction; and an operation assembly, including an operating member and a driving member, where the operating member is capable of performing compound motion relative to the mounting base, and the operating member is operable to drive the driving member to selectively mate with and disengage from the clamping unit. In this way, the hand-held tool of the present embodiment has the clamping device. By way of compound motion, not only comfort of operation can be achieved, but also parts can be saved, thereby making the structure simpler and more reliable.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 26, 2021
    Assignee: Positec Power Tools (Suzhou) Co., Ltd.
    Inventors: Lianbao Wang, Hongfeng Zhong, Jingtao Xu, Warren Brown, Harry Szommer, Graham Gerhardt
  • Patent number: 11052475
    Abstract: A rapid replacing structure for multi-purpose saw includes an operating mechanism, a clamping mechanism and a collet. The collet is released or clamped by driving the clamping mechanism through the operating mechanism. The structure includes an output shaft having top and bottom openings and defining a chamber. The collet is mounted in the chamber. The clamping mechanism includes a spring, a collet sleeve, and a compressor arm. The collet sleeve is disposed around and movable along an upper portion of the collet. One end of the spring contacts with the bottom wall of the output shaft, while another end contacts with the collet sleeve. The compressor arm includes a top lever, and a top ring integrally formed on a lower end of the top lever and located above the collet sleeve. The top lever of the compressor arm is connected in a contacted manner to the operating mechanism.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: July 6, 2021
    Assignee: Zhejiang Burley Tools Co., Ltd.
    Inventor: Tingjin Li
  • Patent number: 10207338
    Abstract: A device for holding and securing a tool, in particular, a drill bit, on a machine tool, for example, a core drill, including an output shaft for transmitting a torque generated in the machine tool to the tool; and a union nut positioned around the output shaft for detachably connecting the output shaft to an attachment end of the tool. The output shaft includes a locking ring and the union nut includes a washer disk, as well as an attenuator, the washer disk being positioned between the locking ring and the attenuator.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 19, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventors: Thomas Reichenberger, Xaver Ried
  • Patent number: 10052695
    Abstract: The invention relates to a machine tool, in particular a hand held machine tool, which has a tool receiving device that is movable, in particular in an oscillating manner, around an output shaft (2). The tool receiving device is designed to hold a tool device on the machine tool in such a manner that the output shaft and a tool rotation axis substantially coincide. The tool receiving device has at least one torque transmission region (9) and a holding device (4a, 4b). In order to transmit a driving force to the tool device, the torque transmission region has at least two output area regions (9a) that are arranged at a distance from said output shaft and each have a multiplicity of surface points. Here, the tangent planes to said surface points are inclined in regard to an axial plane which includes said output shaft. Furthermore, the tangent planes are inclined in regard to a radial plane which extends perpendicularly to the output shaft.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: August 21, 2018
    Assignees: C. & E. FEIN GMBH, ROBERT BOSCH GMBH
    Inventors: Olaf Klabunde, Juergen Blickle, Walter Thomaschewski, Fabian Bek, Stefano Delfini, Willi Fellmann, Bruno Luescher, Milan Bozic, Thomas Mathys, Daniel Grolimund
  • Patent number: 8864144
    Abstract: A tool connecting rod of the present invention includes a barrel and a rod. A resilient unit and a retainer are disposed between the barrel and the rod. Both of an inner wall of the barrel and a body portion of a pushing member are formed with at least two stepped recesses respectively. As such, the structure of the tool connecting rod is simple so that a tool bit assembles on and detaches from the present invention rapidly.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: October 21, 2014
    Assignee: Chung Taan Industrial Co., Ltd.
    Inventor: Chung-Liang Hsu
  • Patent number: 8746703
    Abstract: A screwdriver head mounting structure includes a mounting base, a screwdriver head, a latching member and an elastic member. The mounting base defines a mounting hole and an eccentric latching hole communicating with and positioned eccentric to the mounting hole. The screwdriver head is detachably assembled to the mounting base. The screwdriver head has a latching end inserted into the mounting hole of the mounting base. The latching member is releasably and adjustably assembled to the mounting base together with the elastic member. The latching member passes through the eccentric latching hole and latches with the latching end of the screwdriver head.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: June 10, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Xiao-Bing Xu, Qing-Song Wen, Hai-Feng Ma
  • Patent number: 8622400
    Abstract: A tool includes a chuck connected to a handle. The chuck includes a mandrel including a non-circular cavity defined therein, a slit in communication with the non-circular cavity, a first bore in communication with the non-circular cavity, and a second bore in communication with the slit. A bit with a non-circular profile can be inserted in the non-circular cavity. A flat bit can be inserted in the slit. A ball is located in the first bore. A pin is located in the second bore. A movable sleeve is located around and movable along the mandrel and formed with a thread. A rotary sleeve is rotationally located around the mandrel and formed with a thread engaged with the thread of the movable sleeve. By rotating the rotary sleeve, the movable sleeve pushes the ball into the non-circular cavity and the pin into the slit.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: January 7, 2014
    Assignee: Yih Cheng Factory Co., Ltd
    Inventor: Jack Lin
  • Patent number: 8413996
    Abstract: A chuck includes a body having an engaging groove for releasably receiving a bit. A sleeve is slideably mounted around the body. The body further includes an annular groove in an outer periphery thereof. The annular groove includes a positioning portion having an opening extending into the engaging groove. A retainer ring is mounted in the annular groove and includes a section extending into the engaging groove via the opening to engage with and retain the bit in the engaging groove.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: April 9, 2013
    Inventor: Bobby Hu
  • Patent number: 8366122
    Abstract: A rotary tool has an output shaft having an axis of rotation and a distal neck portion which has at least three neck faces that do not intersect the axis of rotation, and a substantially U-shaped spring element having a base portion and two leg portions, wherein the spring element straddles the distal neck portion.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: February 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Siew Yuen Lee, Mohsein Wan, Chi Hoe Leong, Manfred Lutz
  • Patent number: 8366120
    Abstract: A chuck includes a body having an engaging groove for releasably receiving a bit. A sleeve is mounted around and movable relative to the body along a longitudinal axis of the body between a coupling position in which the bit is retained in the engaging groove and a releasing position allowing removal or insertion of the bit. The sleeve further includes an engaging section that slideably abuts a coupling section of the body. The engaging section is engaged with the coupling section to allow joint rotation of the body and the sleeve about the longitudinal axis. The sleeve further includes a flange with a frictional outer periphery to provide friction when the sleeve is manually rotated about the longitudinal axis by rotating the frictional outer periphery. Furthermore, the flange can be gripped by a user to move the sleeve to the releasing position.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: February 5, 2013
    Inventor: Bobby Hu
  • Patent number: 8366121
    Abstract: A chuck includes a body having an engaging groove for releasably receiving a bit. A sleeve is slideably mounted around the body. The body further includes an annular groove in an outer periphery thereof. The annular groove includes a positioning portion having an opening extending into the engaging groove. A positioning member is slideably received in the positioning portion and movable between a disengaged position disengaged from the bit and an engaged position. The positioning member in the engaged position has a portion extending through the opening into the engaging groove to engage with and retain the bit in the engaging groove. A retainer ring is mounted in the annular groove and clamps the positioning member in the engaged position.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 5, 2013
    Inventor: Bobby Hu
  • Patent number: 8308168
    Abstract: The quick change tool bit holder comprises a bore for receiving a bit. A retaining tooth, or plurality of teeth, is movable into engagement with the bit when the bit is inserted into the bore to retain the bit in the bore. An ejector ejects the bit from the bore when the retaining tooth is moved out of engagement with the bit. The ejector may comprise a spring that is compressed when the bit is inserted in the bore and a push button is biased by the spring into engagement with the bit. A sleeve forces the retaining tooth into engagement with the bit when said sleeve is in the locking position where the tooth moves at an angle relative to a longitudinal axis into contact with the bit. A method of operating the quick change tool bit holder is also disclosed.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: November 13, 2012
    Assignee: Irwin Industrial Tool Company
    Inventor: Derek J. Nash
  • Patent number: 8262097
    Abstract: A quick-release mechanism for a hand tool includes a center rod, a first sleeve, a second sleeve, and an engaging member. The first sleeve is sleeved on the center rod. The second sleeve is sleeved on the center rod and the first sleeve for moving with the first sleeve. The second sleeve has a recess, a first pushing portion, and a second pushing portion. The engaging member has a protruding portion and an engaging end. The first pushing portion or the second pushing portion abuts against the protruding portion to push the engaging end such that the engaging end engages with a tool bit. When pulling or pushing the first sleeve, the second sleeve moves such that the protruding portion is received in the recess. Simultaneously the engaging end disengages with tool bit.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: September 11, 2012
    Inventor: Jin-Tsai Lai
  • Patent number: 7959162
    Abstract: An automatically releasing instrument holder includes a grip to be held by an operator for guiding an instrument, an actuator to be activated by the operator and a biasing device exerting a force. A clamp is moved by the actuator toward the instrument against the force of the biasing device and is moved by the biasing device away from the instrument upon releasing the actuator. A method for operating the instrument holder is also provided.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: June 14, 2011
    Assignee: Syntheon, LLC
    Inventors: Kevin Smith, Derek Deville, Thomas Bales, Carlos Rivera, Matthew Palmer, Max Mendez, Michael Kirk
  • Patent number: 7823890
    Abstract: A chuck includes a driving element, a sleeve movably installed on the driving element and a ring fit in the socket. The driving element includes a socket for receiving a bit, a shank extended from and a shoulder formed between the socket and the shank. The sleeve includes a shoulder formed on an internal side for contact with the shoulder of the driving element for avoiding detachment thereof from the driving element in a direction. The restraint is fit in the socket for avoiding detachment of the sleeve from the driving element in an opposite direction.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: November 2, 2010
    Inventor: Tsai-Ching Chen
  • Patent number: 7527272
    Abstract: A chuck is described, in particular for a hammer drill or chisel hammer, having a chuck body having an insertion opening for holding a tool shank, and a locking element for axially locking the tool shank in the insertion opening, the locking element being movable between a locked position and an unlocked position, and having an arresting pin, mounted in the locking element and radially displaceable between an arresting position and a release position, which axially arrests the locking element in its arresting position and axially releases it in its release position.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: May 5, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Karl Frauhammer, Manfred Hellbach, Heinz Schnerring, Joerg Friedrich, Andreas Strasser, Michael Mayer, Werner Huser
  • Patent number: 7160065
    Abstract: A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon insertion of an elongated tool shaft having a polygonal cross section into the bore so that a groove in the tool shaft is aligned with the first detent, the first detent engages the groove and axially retains the tool shaft. Upon movement of the jaws so that the jaw faces engage flat sides of the tool shaft, the jaws rotationally retain the tool shaft.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: January 9, 2007
    Assignee: Jacobs Chuck Manufacturing Company
    Inventors: Mark S. Huggins, Stephen W. Steadings, James L. Weinhold, William C. Buck
  • Patent number: 7137457
    Abstract: A hand power tool, in particular a drill hammer or jackhammer, is disclosed, which has a guide tube (11), a tool holder (24) that can be attached interchangeably to the guide tube (11), and a locking device (23) that locks the tool holder (24) to the guide tube (11), the locking device being manually releasable by means of an axial displacement of a slide sleeve (34) oriented away from the tool holder (24). To achieve a compact connection construction, which is economical in production terms, between the interchangeable tool holder (24) and the hand power tool, the tool holder (24) is embodied as insertable by an end portion (241) into a guide portion (111) embodied on the front end of the guide tube (11), in the inner wall thereof (FIG. 1).
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: November 21, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Karl Frauhammer, Gerhard Meixner, Heinz Schnerring, Willy Braun, Axel Kuhnle
  • Patent number: 7040630
    Abstract: A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon insertion of an elongated tool shaft having a polygonal cross section into the bore so that a groove in the tool shaft is aligned with the first detent, the first detent engages the groove and axially retains the tool shaft. Upon movement of the jaws so that the jaw faces engage flat sides of the tool shaft, the jaws rotationally retain the tool shaft.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 9, 2006
    Assignee: Jacobs Chuck Manufacturing Company
    Inventors: Mark S. Huggins, Stephen W. Steadings, James L. Weinhold, William C. Buck
  • Patent number: 6761361
    Abstract: A drill and drive apparatus includes a tube assembly which defines a tool chamber. The apparatus further includes a tool holder which is configured to be at least partially received in the tool chamber of the tube assembly. The tool holder includes a holder body defining a first tool recess and having (i) a first section with a first width and at least one ball aperture communicating with the first tool recess, and (ii) a second section with a second width less than the first width. The tool holder further includes a first tool locking mechanism at a first end portion thereof.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: July 13, 2004
    Assignee: Credo Technology Corporation
    Inventors: Steven H. Taylor, Gregory A. Phillips
  • Patent number: 6688610
    Abstract: A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon insertion of an elongated tool shaft having a polygonal cross section into the bore so that a groove in the tool shaft is aligned with the first detent, the first detent engages the groove and axially retains the tool shaft. Upon movement of the jaws so that the jaw faces engage flat sides of the tool shaft, the jaws rotationally retain the tool shaft.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: February 10, 2004
    Assignee: Power Tool Holders Incorporated
    Inventors: Mark S. Huggins, Stephen W. Steadings, James L. Weinhold, William C. Buck
  • Patent number: 6666114
    Abstract: The present invention relates to a magnetic connecting tube for a screwdriver head with a main body, a push element, a spring element, a fastening ring, a block member and an engaging element. The main body having an engaging hole at one end thereof for receiving a hexagonal head which is secured by the engaging element in position. The main body includes under the engaging hole a through hole in which two permanent magnets are so arranged that the repulsive poles face to each other. When the hexagonal head is inserted into the engaging hole, it presses against the upper permanent magnet. In order to drive out the hexagonal head by means of the effect of the push element and the engaging element, the repulsive force between the permanent magnets is utilized to repel the hexagonal head out of the engaging hole. Meanwhile, the upper permanent magnet has the magnetic force to attract the hexagonal head such that the hexagonal head can be firmly attached and can't fall out of the engaging hole.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: December 23, 2003
    Inventor: Peng-Ho Lin
  • Patent number: 6612588
    Abstract: An arrangement for transmitting a torque from a power tool to a working tool and including a shank forming part of the working tool and having following one another, in the operational direction of the working tool, first, second, third, and fourth regions (B1, B2, B3, B4), at least two drive grooves (3) extending parallel to a working tool axis over all of the shank regions (B1, B2, B3, B4), and at least one additional drive groove (4) extending in third and fourth regions (B3, B4) of the shank (2), with the arrangement further including a chuck (10) having an opening (13) for receiving the shank (2), at least one locking element (21) projecting into the receiving groove (13) for engagement into the circumferential groove (5) of the shank (2), at least two drive dogs (16) and an additional drive dog projecting into the receiving groove (13) for engagement in the first drive grooves (3) and the at least one additional drive groove (4).
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: September 2, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Peter Ostermeier, Wolfgang Erdt, Peter Ehe, Marcus Flock
  • Patent number: 6570374
    Abstract: A vacuum chuck with a conductive circuit embedded.onto it's surface wherein the chuck provides a reliable conductive path for electrical testing as well as reliable and uniform mechanical support over the entire area of a flexible panel to be tested. In one possible form, the chuck comprises an air permeable fine grain porous alumina ceramic module having a surface coated with conductive material wherein the coating is thin enough that it does not prevent air from passing through the conductive material or the ceramic module. The conductive material may also be etched or otherwise formed into a conductive pattern to facilitate testing of a panel.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: May 27, 2003
    Assignee: Honeywell International Inc.
    Inventors: Boris Moldavsky, David Mincemeyer, Jaime Araya
  • Patent number: 6554290
    Abstract: A tool structure includes a tool having a rotation shaft formed with a central hole for insertion of the distal end of a tool. The rotation shaft is provided with a cover, and has an outer wall mounted with an elastic member and a drive member. A drive shaft is passed through a first guide slot of the rotation shaft and a second guide slot of the shaft seat in the rotation shaft. Multiple clamping shafts are mounted in the shaft seat to mate with a clamping recess formed in the rotation shaft. Thus, when the tool head is rotated by the rotation shaft, the tool head may be fixed rigidly and stably by the relative urging effect between the clamping recess and the clamping shafts during rotation of the rotation shaft.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: April 29, 2003
    Inventor: Kun-Tan Lin
  • Patent number: 6533291
    Abstract: A chuck includes a driver disposed on a chuck body and in engagement with the jaws so that at least one of rotation and axial movement of the driver with respect to the body opens or closes the jaws. A first detent is disposed in the body in communication with the jaws. At least one of the jaws defines a catch at a predetermined position so that the catch engages the first detent when the jaws are at a predetermined position on the body with respect to a chuck bore.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: March 18, 2003
    Assignee: Power Tool Holders Incorporated
    Inventors: Mark S. Huggins, Stephen W. Steadings, Daijiro Nakamura
  • Patent number: 6517297
    Abstract: A chuck 30,232 includes a pair of jaws 178,304,306 which are located within an axial opening 114,246 of a body 106,234 for receipt of a shank of a bit therein. A roller 186,238 is located in a slot 134,272 of the body 106,234 and can be pressed into the shank of the bit to clamp the shank between the jaws 178,304,306 and the roller. A sleeve 196,240 is biased and structured to normally urge the roller 186,238 into the shank-pressing position, and is movable relative to the body 106,234 to facilitate removal of the shank from the chuck 30,232.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: February 11, 2003
    Assignee: Black & Decker Inc.
    Inventors: John R. Cochran, Michael L. Obanion, Allen P. Smith
  • Patent number: 6511268
    Abstract: A tool holder comprising an elongated connector means having a first end and a second end, where the elongated connector means has a central longitudinal hole, of a cross-section corresponding to a cross-section of a mounting portion of the tool bit, at the first end, and a tool mount at the second end, and a first sleeve arranged to reciprocally slide over the connector means between a first end position and a second end position, the first sleeve having a third end facing the tool bit and a fourth end facing the hand tool.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: January 28, 2003
    Assignee: Maxtech Manufacturing Inc.
    Inventors: Kailash C. Vasudeva, Maz A. Hasan, Satnam Singh
  • Patent number: 6505840
    Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is adapted to rotate with the drive shaft, and the nose section has an axial bore formed therein. A driver is axially movably disposed about the body. A generally cylindrical sleeve is rotatably mounted about the body. A grip is mounted in the body in communication with the axial bore and in operative communication with the driver. The driver is in communication with the sleeve and the body so that, in a first state of the chuck, rotation of the sleeve with respect to the body in a closing direction moves the grip toward the axis of the axial bore and so that, in a second state of the chuck, the driver is axially reciprocal with respect to the sleeve and the body.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: January 14, 2003
    Assignee: Power Tool Holders Incorporated
    Inventors: Mark S. Huggins, William H. Aultman
  • Patent number: 6488452
    Abstract: A drill and drive apparatus includes a tube assembly which defines a tool chamber, the tube assembly including a shank adapted to be received within a chuck of a drill. The apparatus further includes a tool holder which is configured to be at least partially received in the tool chamber of the tube assembly, the tool holder having (i) a first tool locking mechanism at a first end portion thereof, and (ii) a second tool locking mechanism at a second end portion thereof. The drill and drive apparatus further includes a tube locking mechanism which is configured to releasably lock the tool holder to the tube assembly when the tool holder is at least partially received in the tool chamber.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: December 3, 2002
    Assignee: Vermont American Corporation
    Inventors: Todd A. Hoskins, Kevin M. Ward
  • Publication number: 20020109306
    Abstract: A chuck includes a driver disposed on a chuck body and in engagement with the jaws so that at least one of rotation and axial movement of the driver with respect to the body opens or closes the jaws. A first detent is disposed in the body in communication with the jaws. At least one of the jaws defines a catch at a predetermined position so that the catch engages the first detent when the jaws are at a predetermined position on the body with respect to a chuck bore.
    Type: Application
    Filed: February 14, 2001
    Publication date: August 15, 2002
    Inventors: Mark S. Huggins, Stephen W. Steadings, Daijiro Nakamura
  • Publication number: 20020079656
    Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is adapted to rotate with the drive shaft, and the nose section has an axial bore formed therein. A driver is axially movably disposed about the body. A generally cylindrical sleeve is rotatably mounted about the body. A grip is mounted in the body in communication with the axial bore and in operative communication with the driver. The driver is in communication with the sleeve and the body so that, in a first state of the chuck, rotation of the sleeve with respect to the body in a closing direction moves the grip toward the axis of the axial bore and so that, in a second state of the chuck, the driver is axially reciprocal with respect to the sleeve and the body.
    Type: Application
    Filed: December 6, 2000
    Publication date: June 27, 2002
    Inventors: Mark S. Huggins, William H. Aultman
  • Patent number: 6398466
    Abstract: A chuck 30 is formed with a generally cylindrical body 54 formed with a bore 60 at a forward end 58 thereof. A fixed clamp segment 134 and a movable clamp segment 166 are located in radial opposition in the bore 60. A pair of ribs 142 are formed on the fixed segment 134 and extend radially inward. A single rib 172 is formed on the movable segment 166 and extends radially inward. The ribs 142 and 172 cooperate to clamp a shank 42 therebetween in a clamping mode. A sleeve 78 is positioned about the body and is movable axially relative thereto. A camming section 88 formed on an interior wall of the sleeve 78 is captured between a head 124 of a pin 122 and a detent ring 132 to latch the sleeve in an unclamped mode. When the shank 42 is inserted into the bore 60, the forward end of the shank engages the pin 122 to move the head 124 against the camming section 88 which, in turn, moves the section past the detent ring.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: June 4, 2002
    Assignee: Black & Decker Inc.
    Inventor: Dale K. Wheeler
  • Patent number: 6390739
    Abstract: A body 52 of a chuck 30 has an axial opening 34 and is formed with three spaced radial slots 58 which receive three respective locking fingers 68 extending radially inward from a circular band 66. The band 66 is located outside of, and rotatable relative to, the body 52. The band 66 and the locking fingers 68 form a latching unit 64 which is confined to a transaxial plane 61. A spring 70 is attached the latching unit 64 and to the body 52 and normally urges each of the locking fingers 68 against one end of the respective slots 58. A plurality of spaced ribs 54 extend radially inward from an inner wall of the opening 34. A bit 36 is formed with a shank 38 having a plurality of axial grooves 42 which extend through a free end of the shank. A wall of each groove 42 is formed with a transaxial groove 50 at a prescribed distance from the free end of the shank 38.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 21, 2002
    Assignee: Black & Decker Inc.
    Inventor: Michael L. O'Banion
  • Publication number: 20010046421
    Abstract: A chuck 30, 232 includes a pair of jaws 178, 304, 306 which are located within an axial opening 114, 246 of a body 106, 234 for receipt of a shank of a bit therein. A roller 186, 238 is located in a slot 134, 272 of the body 106, 234 and can be pressed into the shank of the bit to clamp the shank between the jaws 178, 304, 306 and the roller. A sleeve 196, 240 is biased and structured to normally urge the roller 186, 238 into the shank-pressing position, and is movable relative to the body 106, 234 to facilitate removal of the shank from the chuck 30, 232.
    Type: Application
    Filed: February 9, 2001
    Publication date: November 29, 2001
    Inventors: John R. Cochran, Michael L. Obanion, Allen P. Smith
  • Publication number: 20010042964
    Abstract: A holder having a quick-connect mechanism actuated by inserting a single- or double-ended tool bit, the tool bit engaging means to force deflection of retaining means, where the retaining means actuate means for engaging the tool bit, and released by manual operation of the retaining means, whereby the tool bit is pushed out from the holder so that the user can operate the tool bit holder using one hand only.
    Type: Application
    Filed: February 15, 2001
    Publication date: November 22, 2001
    Inventors: Sanjeev Bedi, Kailash C. Vasudeva
  • Patent number: 6276065
    Abstract: A blade is inserted into a slit which extends in an axial direction of a plunger. A bore extends in a direction normal to the axial direction of the plunger and merges with the slit. A locking pin is slidably disposed in the bore. A blade holder is coupled around the plunger and slidable in the axial direction of the plunger. The blade holder shifts in an axially forward direction to generate a pushing force applied to the locking pin. The locking pin engages with a hole of the blade. Furthermore, the blade holder shifts in an axially rearward direction to release the pushing force applied to the locking pin. The locking pin disengages from the hole of the blade.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: August 21, 2001
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yoshio Osada, Toshihiko Tachibana
  • Publication number: 20010013682
    Abstract: The machine tool, especially a hammer drill or chisel, has a rotatable and/or axially movable tool holder (10,12) for a tool (16) having a grooved shaft. The tool holder (10,12) includes a base body (22); two radially movable locking bodies (18,20) held in the base body and movable into respective locking positions engaged in two closed grooves (26,28) in the tool shaft; a bearing member (32) movable between a bearing position for holding the locking bodies (18,20) in the locking position and a releasing position in which the locking bodies are movable out of the grooves; an operating member (36,38) connected with the bearing member (32) for moving the bearing member (32) and a resilient plastic guiding member (42,44) arranged to guide the locking bodies (18,20) radially outward during motion from the locking to unlocking position and to act on the locking bodies (18,20) with a radially inwardly directed spring force.
    Type: Application
    Filed: January 11, 2001
    Publication date: August 16, 2001
    Inventors: Karl Frauhammer, Manfred Hellbach, Heinz Schnerring, Karsten Blaier
  • Patent number: 6260281
    Abstract: A device for mounting a blade on a reciprocally movable blade carrier of a cutting tool includes a blade pressing member and a blade pressing surface formed on the blade carrier, so that the blade can be pressed against the blade pressing surface by the blade pressing member. A retainer member serves as a guide for the pressing member, so that the pressing member can move in a direction substantially perpendicular to the pressing surface between a first position for pressing the blade against the pressing surface and a second position for releasing the pressing force of the pressing member. An operation member is shiftable relative to the blade carrier and is operable by an operator for moving the pressing member between the first position and the second position. A ball is interposed between the pressing member and the operation member. A contacting surface is formed on the operation member, so that the ball can roll along the contacting surface.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: July 17, 2001
    Assignee: Makita Corporation
    Inventors: Michio Okumura, Mitsuyoshi Niinomi, Shinsuke Mori
  • Patent number: 6261035
    Abstract: A chuck 40 includes a body 42 having a plurality of angularly spaced ribs 166, 168 and 170 formed in a forward cylindrical opening 48 thereof. A locking element 236 is movable within a passage 180 of the body 42, and is formed with a defined portion 242 which is extendable from the passage 180, through an inboard peak surface 172 of the rib 166 and into the opening 48. An actuator 44 is coupled to the locking element 236 and is biased by a spring 250 to urge normally the defined portion 242 of the locking element into the opening 48. A bit 62 is formed with a shank 96 with three grooves 100, 102 and 104 extending axially to a free end 112 thereof. A pocket 114 is formed in a base of each of the grooves 100, 102 and 104. The bit 62 can be manually inserted into the opening 48 of the chuck 40 such that the grooves 100, 102 and 104 are located drivingly over at least portions of the ribs 166, 168 and 170, respectively.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 17, 2001
    Assignee: Black & Decker Inc.
    Inventors: Robert G. Moores, Jr., Allen Brelsford, John R. Cochran
  • Patent number: 6193241
    Abstract: The tool drive system for use with a chuck having a throughbore including an outer bore portion for receiving a tool or tool holder and an inner bore portion constructed to receive and be mounted on an outer end of a motor shaft of a power tool comprises: an insert received in the inner bore portion; structure for preventing rotation of the insert relative to the chuck; structure on the insert for engaging an inner end of a tool or tool holder; and a mechanism for holding the tool or tool holder against axial movement relative to the insert.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: February 27, 2001
    Inventor: Troy Robison
  • Patent number: 6179300
    Abstract: A tool holder for coupling of rotating and striking tools with hand power tools has a coupling sleeve, a drive member connectable to a hand power tool and transmitting a drive movement, the coupling sleeve being connected with the drive member, a tool shaft provided with groove-shaped locking pockets which are closed at both sides in an axial direction, the coupling sleeve being connected with the tool shaft, elongated locking bodies which are oriented axis-parallel and engage in the locking pockets, the coupling sleeve having a longitudinal passage in which each of the locking bodies are axially displaceable and held radially immovable, a displacement sleeve which surrounds the coupling sleeve with the locking bodies and is spring-loaded in an axial direction, the displacement sleeve having an inner blocking surface which blocks a radial movement of the locking bodies, each of the locking bodies has a construction which is saddle-shaped in a longitudinal section and has two humps which have an arcuate cross-
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 30, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Otto Baumann, Sven Kageler
  • Patent number: 6179303
    Abstract: A device for receiving a tool or support element in a machine tool or spindle has a tool carrier receiving member arranged in a machine tool or spindle and a tool carrier having a tool receiving member for a tool as well as a clamping device for securing the tool carrier in the tool carrier receiving member. The tool carrier has two areas, wherein a first area includes the tool receiving member and wherein a second area is designed to be received in the tool carrier receiving member. The second area includes the clamping device. The two areas are merged with one another in the axial direction of the device by overlapping the areas.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: January 30, 2001
    Assignee: WTO Werkzeug - Einrichtugen GmbH
    Inventor: Karlheinz Jansen
  • Patent number: 6062779
    Abstract: Upper-and-lower cutouts (25a) and right-and-left cutouts are formed in a flange portion (23) of a holder main body (12). In a fore portion of the outer circumference of the flange portion (23), is provided a first operation ring (41), which is urged rearward by a compression spring (42). A taper portion (44) inwardly slanted as viewed toward the rear as well as a straight portion (45) are formed in the operation ring (41), and a drive key portion to be fitted to the key way of the spindle through the right-and-left cutouts are provided on both right and left sides of a rear face (45a) of the straight portion (45). In the rear of the operation ring (41), is provided a second operation ring (51) via two spacers (52).
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: May 16, 2000
    Assignee: Kuroda Seiko Co., Ltd.
    Inventor: Tetsuo Sugimura
  • Patent number: 6010154
    Abstract: This is a device for use in operating a trailer landing gear drive mechanism. The device comprises: an elongated, rigid, cylindrical body having a closed end portion which is coupleable to a rotatable drive shaft of a drive means, and an open end portion which is adapted to releasably grip the end of a crank shaft of a mechanical landing gear drive mechanism. When the drive shaft of the drive means rotates, the device rotates, causing the crank shaft of the mechanical landing gear drive mechanism to rotate, thus effecting the raising or lowering of one or more landing gear legs of a vehicle trailer. The open end of the device comprises at least one slot, which is adapted to releasably grip the end of the crank shaft. There are preferably two identical "T" shaped slots on the open end portion so that the drive speed of the landing gear drive mechanism can be selected. The closed end of the device preferably has a threaded hole which is coupleable to the rotatable drive means.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: January 4, 2000
    Inventors: Christopher Kimpton Payne, George Kimpton Payne, Jr.
  • Patent number: 5951024
    Abstract: A tool holding device for holding a tool bit to a drive spindle includes a body member having an axially extending bore defined therein for receipt of a tool shank. The body member includes a plurality of axially extending segments defining the bore. The segments are defined by axially extending slits in the body member. The slits extend from a front face of the body member rearward. The segments are radially compressible to grip upon a tool shank inserted into the bore when a radially compressive force is applied to the segments in the area of the slits. The bore defined by the segments has a tapered diameter that is greater at the front face of the body member and tapers to a lesser diameter in the axially rearward direction.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: September 14, 1999
    Assignee: Power Tool Holders Incorporated
    Inventors: Kenneth M. Montjoy, Mark S. Huggins, Roger J. Kanaan
  • Patent number: 5921563
    Abstract: A quick release chuck device includes a body member having a frusto-conical chamber defined therein for receipt of a conventional collet. A plurality of weighted cam members are disposed around the circumference of the body member and include a first end which is pivotally mounted to the body member. The cam members have a center of gravity longitudinally spaced from the pivot point wherein upon rotation of the body member in an operational mode, the cam members are caused to pivot relative to the body member and swing radially outward from the body member. A collet engaging member is disposed at a first end of the cam members and is configured to engage and move the collet into the frusto-conical chamber as the cam members swing radially outward.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: July 13, 1999
    Assignee: Power Tool Holders Incorporated
    Inventors: Mark S. Huggins, Kenneth M. Montjoy, Richard L. Marcengill
  • Patent number: 5826888
    Abstract: A quick release chuck device includes a body member and a device for attaching the body member to a drive spindle. A longitudinal bore or recess is defined in the body member and a resilient coiled member gripping device is disposed in the longitudinal recess. The coiled member defines an inner diameter bore for receipt of a tool shank inserted therein. A device is provided for variably coiling the coiled member gripping device within the longitudinal recess thereby causing the inner diameter bore to constrict and grip upon a tool shank inserted therein.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: October 27, 1998
    Assignee: Power Tool Holders Incorporated
    Inventors: Mark V. Weaver, Mark S. Hart
  • Patent number: 5820136
    Abstract: A quick release chuck device includes a body member having a frustoconical chamber defined therein with a collet device operably housed in the chamber. At least two longitudinally extending members are disposed equally spaced around the circumference of the body member and are pivotally mounted relative to the body member at pivot points near a front or first end of the longitudinal members. The longitudinal members have a second end opposite the first end wherein the second ends are moveable radially outward from the body member as the body member is rotated in an operational mode of the device. The first ends of the longitudinal members engage the collet device and force the collet device longitudinally into the frustoconical chamber when the second ends are moved radially outward by centrifugal force as the body member is rotated.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: October 13, 1998
    Assignee: Power Tool Holders Incorporated
    Inventors: Erik G. Han, Edward H. Martin, Kenneth M. Montjoy, William M. Aultman, Robert A. Grogan