Class / Patent application number | Description | Number of patent applications / Date published |
279060000 | Obliquely guided reciprocating jaws | 73 |
20080277886 | Clamping Device - The present invention relates to a clamping device for clamping tools, having a receptacle ( | 11-13-2008 |
20080309029 | Chuck jaw face profile - A chuck is described. The chuck may include: a plurality of chuck jaws. Each chuck jaw is radially movable toward and way from a chuck axis, and each chuck jaw including: two substantially coplanar surfaces perpendicular to a chuck jaw axis and substantially parallel to the chuck axis; a ridge located between the two substantially coplanar surfaces; and two troughs, one trough located between the ridge and one of the substantially coplanar surface and the other trough located between the ridge and the other coplanar surface. A chuck jaw and method of configuring a chuck are also described. | 12-18-2008 |
20090066039 | Tool-Carrier Chuck for Fitting to a Rotating Machine, Particulary of the "Impact Wrench" Type - A chuck includes: a body attached to a rotating machine, carrying jaws; a peripheral nut fixedly attached to the body rotatably in a clamping direction; a ring that can be moved about the nut according to a limited angular amplitude, and having a considerable weight; and a spring connecting the nut and the ring. The nut includes a tooth interacting with a tooth of the ring to operate the ring in the clamping direction. When the body rotates in an unclamping direction, the ring, due to its inertia, does not follow the rotary movement of the nut. Then, when the machine stops and under the effect of the spring, impacts the tooth of the nut causing the jaws to clamp. | 03-12-2009 |
20100109262 | Self-tightening drill chuck - The present invention is to provide a paint roller with tubular frame processed through less contamination process, lower material cost, light weight but durable in use. Said paint roller with tubular frame includes, at least, a tubular axle ( | 05-06-2010 |
20100207336 | RE-TIGHTENING DRILL CHUCK - The invention relates to a re-tightening drill chuck with a chuck body ( | 08-19-2010 |
20110227299 | Self-Tightening Drill Chuck - A self-tightening drill chuck includes a drill chuck main body, three collet jaws, a pushing threaded rod and a pushing nut. A spiral groove having an arc-shaped cross-section is machined on the outer surface of the pushing threaded rod, and at least three through holes are machined along the radial direction on the pushing nut at a position opposite to the spiral groove on the outer surface of the pushing threaded rod. One steel ball and one lock-pin preventing the steel ball from falling off are positioned in each through hole. One part of the steel ball is set in said spiral groove, and another part of the steel ball is set in said through hole. The pushing nut is rotably jointed on the pushing threaded rod via said steel ball, thus the friction force between the pushing threaded rod and the pushing nut is decreased in order to prevent them from locking. | 09-22-2011 |
20110304107 | DEVICE FOR TREATING DISC-LIKE ARTICLES - A device for treating a disc-like article with a fluid, includes elements for dispensing a fluid onto the article and a chuck for holding and rotating the article around an axis perpendicular thereto. The chuck includes a base body, a drive ring, and gripping members for contacting the article at its edge. The gripping members are eccentrically movable with respect to the center of the article. The eccentric movement of the gripping members is driven by a drive ring rotatably mounted to the base body, so that the drive ring is rotatable against the base body around the axis. The relative rotational movement of the drive ring against the base body is carried out by either holding the base body and rotating the drive ring or by holding the drive ring and rotating the base body, whereby the to-be-held-part (drive ring or base body) is held without touching the respective to-be-held-part by magnetic force. | 12-15-2011 |
20120175849 | DRILL - The invention relates to a drilling device comprising a drilling machine ( | 07-12-2012 |
20120205879 | DRILL CHUCK - A chuck has a body rotatable about a body axis and having an axially forwardly open central threaded hole and a tightening assembly rotatable about the axis on the chuck body and formed with a plurality of angularly spaced guides each having a face extending at an angle substantially greater than 20° to the body axis. Respective jaws are shiftable along the guide faces between radial outer positions and radial inner positions. A pusher angularly coupled to the jaws and to the tightening assembly is threaded into the hole of the body such that rotation of the assembly on the body in a tightening direction screws the pusher axially forwardly in the chuck body and shifts the jaws axially forward and radially inward on the respective guide faces and opposite rotation in a loosening direction shifts the jaws axially rearward and radially outward on the respective guide faces. | 08-16-2012 |
20120274035 | POWER DRILL - A drilling apparatus has a housing, a motor in the housing, a drive spindle rotatable about an axis on the housing, a chuck body, and a plurality of jaws shiftable in the chuck body. First and second elements interconnected by a screw thread and engaged between the body and the jaws for shifting the jaws on the housing. A drive sleeve rotationally fixed to the first element is drivable by the motor. | 11-01-2012 |
20130093143 | Method and Device for Gripping a Cable - A device for gripping a cable includes a device body, one or more gripping elements, and a gripping element housing configured to support the one or more gripping elements. The gripping element housing is rotatably coupled to the device body such that rotation of the gripping element housing relative to the device body about a longitudinal axis causes the one or more gripping elements to move radially relative to the longitudinal axis. The gripping elements may be configured such that they do not rotate relative to the gripping element housing. The gripping elements may also be configured such that they move only in a radial direction relative to the longitudinal axis, or alternatively such that they move both radially and longitudinally relative to the longitudinal axis. | 04-18-2013 |
20130270779 | Chuck For Rotary Power Tool - A chuck for a power tool having a rotatable drive shaft. The chuck includes a chuck body and an inner sleeve defining a cavity into which the chuck body is rotatably received. An outer sleeve is disposed concentrically around the inner sleeve, the outer sleeve being non-rotatably but axially slidably coupled to the inner sleeve. A cover plate may be provided non-rotatably coupled to the chuck body. A locking cup may be non-rotatably coupled to the power tool and disposed adjacent to the chuck. At least one locking element may be coupled to the cover plate. The locking element is biased to prevent rotational movement in at least one rotational direction between the cover plate and the locking cup, or between the cover plate and the outer sleeve. | 10-17-2013 |
20140217684 | ROTARY TOOL INCLUDING A COLLET - A collet for connecting a tool to a driver includes a shaft having an end. The collet includes a body including a first end that connects to the driver and a second end having an internal space partially defined by a frustoconical bore and a plurality of jaws disposed within the space. Each of the jaws includes a body having a frustoconical surface arranged to engage the frustoconical bore and an engagement member coupled to each body to move between an unlocked and a locked position. Rotation of the tool about the axis in a first direction biases the engagement member toward the unlocked position to allow movement of the tool with respect to the jaws, and rotation of the tool about the axis in a second direction opposite the first direction biases the engagement member toward the locked position wherein the tool is fixed with respect to the jaws. | 08-07-2014 |
20140284887 | SELF-TIGHTENING CHUCK WITH A RADIAL LOCK - A drill chuck including a spindle portion with a pusher bore, a spindle bore, an annular array of teeth, and an annular groove defined by the outer surface of the first end. A body is rotatably disposed about the spindle portion and includes a central bore, an annular groove defined by the central bore, and a pawl pivotably mounted to the body for selectively engaging the annular array of teeth. A jaw pusher includes a threaded post and a head, the threaded post being disposed in the pusher bore and configured for axial motion. A jaw guide is disposed on the first end of the body and includes a plurality of jaw slots. A plurality of jaws is slidably received in the corresponding jaw slots and slidably received by the head of the jaw pusher. A plurality of bearing balls is received between the annular groove of the spindle portion and the annular groove of the body. The annular groove of the spindle portion and the annular groove of the body form a continuous pair of bearing races for the plurality of bearing balls. | 09-25-2014 |
20150115550 | DRILL CHUCK - A drill chuck having a chuck body, on which a threaded ring is guided, which is in engagement with rows of teeth assigned to clamping jaws for the purpose of adjusting the clamping jaws having a thread and guided in the chuck body, as well as comprising a clamping sleeve which surrounds the chuck body and may be coupled with the threaded ring in a torque-transmitting manner and which may be coupled with the chuck body by a locking device. The locking device is formed by a locking sleeve, which has a lock toothing and is rotatably fixedly connected to the threaded ring and which is axially movable between a drilling configuration and a clamping configuration relative to the threaded ring and the clamping sleeve; the locking device is also formed by a mating toothing assigned to the chuck body. | 04-30-2015 |
279061000 | Threaded sleeve and jaw | 55 |
20080224425 | Tool chucking apparatus - A tool chucking apparatus includes a fastening member, a clipping member, a holding member and an extension member. The fastening member has a first housing space to hold the clipping member. The clipping member has pawl structures spaced in an annular manner and formed in a conical structure. The conical structure has a top end directing towards the fastening member. The extension member includes a support portion and an anchor portion coupled together. The support portion has another end tightly coupled with the clipping member and the fastening member. The anchor portion has another end tightly coupled with the holding member. The support portion is selectable at a desired length specification according to the cutter or tool. The fastening member, clipping member, holding member and extension member are hollow in the center thereof to form an installation passage after assembly to hold the cutter or tool. | 09-18-2008 |
20090085307 | MACHINE TOOL BIT HOLDER WITH ADJUSTABLE JAWS - A machine tool bit holder providing a stable connection between a machine and a tool bit being used to perform machining operations on a work piece. The holder for the tool bit is of simple construction and has a large contact area relative to a tool bit size and a holder size between the holder and the tool bit, and the holder is configured so that the tool bit can be easily mounted into and dismounted from the holder. The holder allows different shapes or configurations of tool bits, such as an angle between the holder and the tool bit, and tool bits that are substantially rectangular as well as substantially round in cross-section. | 04-02-2009 |
20100127463 | SELF-LOCKING KEYLESS DRILL CHUCK - This invention provides a self-locking keyless drill chuck comprising a drill body, three clamping jaws, a nut, a front sleeve and a rear sleeve. A thread connection is adopted between the clamping jaws and the nut, wherein the rear sleeve is rotatably installed outside the drill body, the inner side of the front sleeve is provided with a ring gear at the rear part of the nut, a ring which cannot rotate relative to the drill body is arranged outside the drill body, the ring is provided with a member which is with the gear and takes part in self-locking, the rear sleeve is provided with or connected with an inner sleeve rotated with the rear sleeve, the inner sleeve is provided with a structure acting on the member taking part in self-locking. This invention has the advantages of more conveniently assembling and achieving self-locking of the drill chuck through operating the rear sleeve. The drill bit clamped by the clamping jaw cannot be easily loosened and slipped even under the impact of an impulsive load. | 05-27-2010 |
20110062674 | CHUCK - A chuck for use with a driver having a rotatable drive shaft, the chuck including a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore. A plurality of jaws is movably disposed with respect to the body and in communication with the axial bore. A first sleeve is rotatably mounted to the body in operative communication with the jaws so that rotation of the sleeve moves the jaws either toward a longitudinal center axis of the axial bore or away from the longitudinal center axis. A second sleeve is rotatably mounted to the body and is movable between a first position in which the second sleeve is rotatably fixed to the body and a second position in which the second sleeve is rotatable about the body. The second sleeve moves in a direction transverse to the longitudinal center axis of the axial bore when moving between the first position and the second position. | 03-17-2011 |
20110215537 | TOOL-HOLDER MANDREL FOR FITTING TO A ROTATING MACHINE - The invention relates to a tool-holder mandrel for fitting to a rotating machine, comprising:
| 09-08-2011 |
20110316240 | LOCKING MECHANISM, AND CLAMPING HEAD DEVICE AND FASTENING CLAMP WITH LOCKING MECHANISM - The present invention provides a locking mechanism which does not unlock a locked fixing state inadvertently and can lock the fixing state reliably, and a clamping head device and a fastening clamp with the locking mechanism. In a rotation control body | 12-29-2011 |
20120007322 | CHUCK DEVICE - To provide a practical chuck device which is not only capable of providing more reliable and stable retention between the rotary body or the main body and the rotary sleeve, but also has excellent mass-productivity. A chuck device in which a rotary sleeve ( | 01-12-2012 |
20120068421 | CHUCK - A chuck for use with a driver, the chuck including a body having a nose section defining an axial bore and a tail section. A plurality of jaws is in communication with the axial bore. A first sleeve is rotatably mounted to the body so that rotation of the sleeve moves the jaws either toward or away from a longitudinal center axis of the axial bore. A second sleeve is rotatably mounted to the body and is movable between a first position in which the second sleeve is rotatably fixed to the body and a second position in which the second sleeve is rotatable about the body. The second sleeve moves in a direction transverse to the longitudinal center axis of the axial bore when moving between the first position and the second position. | 03-22-2012 |
20120126495 | CHUCK WITH SLEEVE HAVING METAL INSERT - A tool chuck includes a body supporting a plurality of jaws, and a sleeve that is operatively connected to the jaw. The sleeve may be rotated to open and close the jaws. The sleeve includes a radial inward facing surface with recesses that are covered by a metal insert. The metal insert provides a metal-to-metal interface for a lock feature. | 05-24-2012 |
20130264781 | LOCKING CHUCK - A chuck including a body having a nose section, a tail section and a center axis, the nose section defining an axial bore and a plurality of passageways. A plurality of jaws is disposed in the passageways, a nut is rotatably mounted about the body so that rotation of the nut either moves the jaws toward or away from the center axis, and a sleeve that is rotatably mounted about the body, the sleeve being rotatable with respect to the nut between a first rotational position and a second rotational position. An annular array of locking teeth is non-rotatable with respect to one of the body and the nut. A lock ring includes a projection and is axially movable so that, when engaged, the projection and the locking teeth prevent the lock ring from rotating in the opening direction with respect to the body. | 10-10-2013 |
20130264782 | LOCKING CHUCK - A chuck including a body having a nose section, a tail section and a center axis, the nose section defining an axial bore and a plurality of passageways. A plurality of jaws is disposed in the passageways, a nut is rotatably mounted about the body so that rotation of the nut either moves the jaws toward or away from the center axis, and a sleeve that is rotatably mounted about the body, the sleeve being rotatable with respect to the nut between a first rotational position and a second rotational position. An annular array of locking teeth is non-rotatable with respect to one of the body and the nut. A lock ring includes at least three projections and is axially movable so that, when engaged, the projections and the locking teeth resist the lock ring from rotating in the opening direction with respect to the body. | 10-10-2013 |
20130334777 | DRILL CHUCK - A chuck including a body having a tail section and a nose section defining an axial bore. A plurality of jaws are movably disposed with respect to the axial bore and a nut is in threaded engagement with the jaws. A sleeve engages the nut so that rotation of the sleeve moves the jaws. A first ring defines a plurality of teeth and a second ring is rotatable relative to the nut over a limited arc and defines at least one pawl. In a first state, the second ring is non-rotatable relative to the first ring in both the opening and closing directions, and in a second state the first and second rings are rotatable about the body, and the second ring is rotatable relative to the first ring in the closing direction. | 12-19-2013 |
20140167368 | DRILL CHUCK - A drill chuck has a chuck body centered on an axis, made of plastic, and formed with an axially rearwardly open drive-spindle seat, at least one axially extending slot of ring-segment section opening radially inward into the seat, an axially forwardly open tool-holding cavity, and a plurality of angled jaw guides. Respective jaws are movable in the guides and engaged by a threaded ring axially fixed on the body and rotatable about the axis thereon. A tightening sleeve rotatable about the axis on the body is connected to the ring for rotating same. | 06-19-2014 |
20140284888 | DRILL CHUCK - A drill chuck has a chuck body having a plurality of angularly spaced and axially extending but angled guide grooves each holding a jaw that is axially displaceable between an axially front closed position and an axially rear open position. Each jaw has an outer edge formed with external teeth, and also has an axially rearwardly directed rear face extending at an acute angle to a plane perpendicular to the axis. A ring rotatable on the body about the axis has an internal screwthread meshing with the teeth, and an adjustment sleeve rotationally coupled to the ring is rotatable to move the jaws between the open and closed positions. A cover disk on the rear end of the body is formed with respective throughgoing chip-discharge holes each having an inner end aligned with a respective one of the grooves and an outwardly open outer end. | 09-25-2014 |
20140300063 | CHUCK - A chuck for use with a driver having a rotatable drive shaft, the chuck including a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore. A plurality of jaws is movably disposed with respect to the body and in communication with the axial bore. A first sleeve is rotatably mounted to the body in operative communication with the jaws so that rotation of the sleeve moves the jaws either toward a longitudinal center axis of the axial bore or away from the longitudinal center axis. A second sleeve is rotatably mounted to the body and is movable between a first position in which the second sleeve is rotatably fixed to the body and a second position in which the second sleeve is rotatable about the body. The second sleeve moves in a direction transverse to the longitudinal center axis of the axial bore when moving between the first position and the second position. | 10-09-2014 |
20140374999 | POWER DRILL - A power drill has a housing holding a motor and a drive member rotatable about an axis. An arbor extending along the axis outside the housing is rotationally coupled by complementary formations with the drive member. A tube shaft on which is fixed a chuck body holding a plurality of axially displaceable jaws. A sleeve in the tube shaft is rotationally coupled to the arbor. A pusher element braced axially forward against the jaws extends axially rearward into the sleeve, and interengaging screwthreads on the sleeve and pusher element axially displace the pusher element and the jaws on relative rotation of the sleeve and pusher element. A setting sleeve rotationally coupled to the rear end of the tube shaft is axially displaceable between a tightening position engaging a slip coupling on the housing and a drilling position disengaged from the slip coupling and rotationally coupled to the arbor. | 12-25-2014 |
279062000 | Conical sleeve | 39 |
20080217869 | Self-tightening drill chuck - A drill chuck has a chuck body, a jaw holder element rotatable on the body and formed with a plurality of angularly spaced guides, and a sleeve element surrounding the holder element and body. Jaws in the guides can be shifted in the guides forward and together on rotation of the holder element in a tightening direction relative to the body and oppositely on rotation of the holder element relative to the body in an opposite loosening direction. Interengaging formations on the sleeve element and on the body limit relative angular movement of the sleeve element on the body between a pair of angularly offset end positions. An annular array of teeth rotationally fixed to the sleeve element can be engaged by a pawl angularly fixed on the holder element. A release ring rotatable the body rearward of the sleeve is rotationally coupled to one of the elements. | 09-11-2008 |
20080231004 | Self-Locking Mechanism of Manually Tightened Drill Chuck - The present invention publicly discloses a self-locking mechanism of a manually tightened drill chuck, including a ratchet wheel, a clamp bearing, at least one resilient pawl, and a clip ring, wherein said ratchet wheel is fixed in connection with the main unit of said manually tightened drill chuck, and on its back there are provided ratchet teeth facing the end surface of said main unit; said clamp bearing is fixed in connection with the outside surface of a screw ring on said manually tightened drill chuck, and the end surface of this clamp bearing is provided with at least one ratchet wheel slot; said resilient pawl is fixed on said ratchet wheel slot, and it includes a protuberance and a tooth piece; and said clip ring includes at least two arc segments that can mutually antagonistically snap onto the front end position of said main unit, the outer perimeter surface of this clip ring is fixed in connection with a front cap of said manually tightened drill chuck, said clip ring is connected with said clamp bearing and drives said clamp bearing to rotate, and the end surface of said clip ring is provided with deep and shallow recesses for receiving the protuberance on said resilient pawl. | 09-25-2008 |
20080284116 | Apparatus for chucking workpieces on a machining center - An apparatus for chucking workpieces ( | 11-20-2008 |
20080315535 | Clamping Device - The invention relates to a clamping device for removably mounting a tool ( | 12-25-2008 |
20090020963 | COMBINATION OF THE CHUCKING DEVICE AND A DRILL AND A CHUCKING DEVICE FOR A DRILL WITH CUTTING TIPS ON BOTH ENDS - A combination of a chucking device and a drill and a chucking device for a drill with cutting tips on both ends. The abstract of the disclosure is submitted herewith as required by | 01-22-2009 |
20090045594 | Locking chuck - A chuck includes a generally cylindrical body constructed of aluminum and a plurality of jaws moveably disposed with respect to the body in communication with the body's axial bore. A generally cylindrical sleeve is rotatably mounted about the body in operative communication with the jaws so rotation of the sleeve in a closing direction moves the jaws towards the axis of the axial bore and rotation of the sleeve in an opening direction moves the jaws away from the axis. A bearing has a first race adjacent the body, a second race adjacent the sleeve and at least one bearing element disposed between the first race and the second race. One of the first race and the second race defines a ratchet. The other of the first race and the second race defines a pawl biased toward the ratchet. The ratchet and the pawl are configured so that when the pawl engages the ratchet, the ratchet and pawl prevent the second race from rotating in the opening direction with respect to the first race. | 02-19-2009 |
20090072501 | CHUCK WITH TORQUE INDICATOR - A chuck for a driver having a rotatable drive shaft, the chuck having a cylindrical body member having a nose section and a tail section. A plurality of jaws is slidably positioned in the body, and each jaw has a jaw face and threads. A nut is rotatably mounted on the body in engagement with the jaw threads. A nut retainer member includes a first portion fixed to the body and a second portion engaging the nut. The chuck includes a plurality of recesses and a deflectable pawl biased toward and engaging the plurality of recesses. In a first state, one of the deflectable pawl and the plurality of recesses travels with the body and the other with the nut, and in a second state they travel together. | 03-19-2009 |
20090115144 | DRILL CHUCK - A chuck with a generally cylindrical body having a tail section configured to receive a drive shaft of a driver and a nose section having an axial bore formed therein. A plurality of jaws is movably disposed with respect to the body. A nut is rotatably mounted about the body and operatively engages the jaws. A sleeve is non-rotatably coupled to the nut. A shield cap is rotatably secured about the nose section of the body. The chuck also includes a first ring and a second ring that rotates relative to the nut over a limited arc. One of the first ring and the second ring defines a ratchet and the other defines at least one deflectable tab that is biased toward and engages the ratchet. | 05-07-2009 |
20090115145 | THREE POSITION SELECTOR FOR AUTOMATED CHUCK - A automated chuck is provided with at least three user selectable operating modes, thereby enabling different functions to be performed during tightening and loosening of the chuck. In one exemplary implementation, the different user selectable operating modes of the chuck may be used to actuate a motor direction switch of the drill. | 05-07-2009 |
20090140500 | Tool-Holding Chuck for Equipping a Rotating Machine - The invention concerns a mandrel comprising a body ( | 06-04-2009 |
20090200758 | Auto Locking Chuck - A chuck that automatically tightens or loosens the jaws of the chuck in response to rotation of a power tool drive shaft or gearbox shaft is disclosed. The chuck has a body, a plurality of jaws and an adjustment ring that is threadably engaged with the jaws. The chuck body and the adjustment ring are each selectively rotationally coupled to the gearbox shaft of the power tool. The chuck body is also selectively rotationally coupled to the power tool housing. A mode selector is provided for placing the chuck in either drill mode or auto-lock mode. In drill mode, the chuck body is rotationally coupled to the gearbox shaft and is rotatable relative to the power tool housing, thereby allowing the chuck body to be rotationally driven by the gearbox shaft. In auto-lock mode, the adjustment ring is rotationally coupled to the gearbox shaft and the chuck body is rotationally coupled to the power tool housing to allow the adjustment ring to be rotationally driven by the gearbox shaft relative to the chuck body so as to tighten or loosen the jaws. | 08-13-2009 |
20090224491 | CHUCK WRENCH FOR A DRILL - A chuck wrench for use with a drill that has a keyless chuck defining a rotational axis includes a body having an interior surface defining an opening. The opening is configured to receive a portion of the keyless chuck such that the body substantially surrounds the keyless chuck. The interior surface includes a projection configured to mate with an exterior surface of the keyless chuck. The chuck wrench also includes a lever coupled to and extending from the body. The lever is operable to rotate the body about the rotational axis such that the projection engages the exterior surface of the keyless chuck to apply a clamp force to the keyless chuck. | 09-10-2009 |
20090261538 | TOOL CHUCK WITH SLEEVE AND CLUTCH MECHANISM - A tool chuck may include a chuck body defining a longitudinal axis. A sleeve may be mounted on the chuck body and axially fixed relative to the chuck body. A clutch part may be provided on the sleeve. The clutch part may interact with a cooperating clutch part mounted on the power driver housing. The cooperating clutch part may be mounted on the power driver housing for movement between a first axial position in which the chuck body is rotatable together with the sleeve, and a second axial position in which the chuck body is rotatable relative to the sleeve to actuate the tool chuck. The chuck body may be rotatable in a first direction to actuate the tool chuck up to a first torque threshold, and rotatable in a second direction to actuate the tool chuck up to a second, different torque threshold. | 10-22-2009 |
20090302554 | CHUCK LEVER FOR A DRILL - A chuck, adapted to secure a power tool bit to a power tool, includes an output operably coupled to a motor to receive torque from the motor. The output at least partially supports therein the power tool bit. The chuck also includes an outer body having a cavity and rotatable relative to the output, and a lever coupled to the outer body and movable between a first position, in which the lever is at least partially retracted into the cavity, and a second position, in which the lever is extended from the cavity. | 12-10-2009 |
20090315279 | SELF TIGHTENING CHUCK WITH AN AXIAL LOCK - A chuck with a generally cylindrical body having a tail section configured to receive a drive shaft of a driver and a nose section having an axial bore formed therein. A plurality of jaws is movably disposed with respect to the body. A threaded spindle is rotatably connected to the body and operatively engages the jaws. A first ring is fixedly mounted about the body and has a first plurality of teeth. An inner sleeve is rotatably mounted about the tail section and has an open portion. A second ring that has at least one protrusion that mates with the corresponding open portion and extends outwardly from the inner sleeve and the ring has a second plurality of teeth. An outer sleeve is placed concentrically around the inner sleeve and contains a lock groove that the protrusion of the second ring is situated inside the lock groove. | 12-24-2009 |
20100025943 | CHUCK - An improved shuck has one end coupling with a fabrication machine through a holding member. The chuck includes a coupling structure, a grip means and a shank. The coupling structure has a first screwing portion at one end and a fastening member at the other end. The grip means has a second screwing portion at one end engageable with the first screwing portion and a plurality of grip jaws at the other end inclined outwards. The coupling structure and the grip means are held in a through hole formed in the shank. The through hole has an internal side to form compact holding of the grip means to firmly hold a tool. After the coupling structure is anchored through the fastening member, the shank can be turned to drive the grip means to move, and the grip jaws can be expanded or contracted to release or grip the tool. | 02-04-2010 |
20100090420 | Tool chuck with sleeve and clutch mechanism to remove operator variability - A tool chuck may include a chuck body defining a longitudinal axis. A sleeve may be mounted on the chuck body for movement between a first axial position and a second axial position. A clutch part provided on the sleeve. The clutch part may engage with a cooperating clutch part when the sleeve is in the second axial position. The clutch part may have a working surface that faces in a direction perpendicular to the longitudinal axis. | 04-15-2010 |
20100127464 | Drill Chuck - The invention relates to a drill chuck having a chuck body ( | 05-27-2010 |
20100181735 | FORCE INCREASING SELF-LOCKING DRILL CHUCK AND SELF-LOCKING MECHANISM THEREOF - The present invention discloses a self-locking mechanism for use in a drill chuck, comprising: clutch tooth sleeves, fixedly connected with the chuck body of the drill chuck and forming teeth; an oval deformation ring, having a substantially circular first shape and a substantially oval second shape, wherein the oval deformation ring has teeth on the side wall, with the teeth engaging with the teeth of the clutch tooth sleeve when the oval deformation ring is in the second shape; and a control sleeve, for controlling the conversion of the oval deformation sleeve between the first shape and the second shape. The present invention also discloses a force increasing self-locking drill chuck with said self-locking mechanism. The self-locking mechanism according to the present invention can be used in drill chucks of multiple structures, and provides a brand-new thought for the designs of the self-locking mechanisms of drill chucks. | 07-22-2010 |
20100187775 | LOCKING CHUCK - A chuck for use with a manual or powered driver having a housing and a rotatable drive shaft extending therefrom is provided. The chuck includes a generally cylindrical body member having a nose section and a tail section. Each of a plurality of jaws is slidably positioned in one of a plurality of angularly disposed passageways in the body. Each jaw has a jaw face formed on one side thereof and threads formed on the opposite side thereof. A nut is rotatably mounted on the body in engagement with the jaw threads so that rotation of the nut moves the jaws axially within the passageways. A locking member, in a first axial position, is rotatable with respect to the driver housing. In a second axial position, it operatively engages the housing and the nut so that the locking member is rotationally held to the housing and the nut so that the nut is rotationally held to the housing. The locking member is axially reciprocal between the first axial position and the second axial position. | 07-29-2010 |
20100207337 | LOCKING CHUCK - A chuck including a cylindrical body with a nose section and a tail section, the nose section having an axial bore formed therein. A sleeve is rotatably mounted about the body. Rotation of the sleeve in a closing direction moves the jaws toward a longitudinal axis of the axial bore and rotation of the sleeve in an opening direction moves the jaws away from the longitudinal axis. An O-ring is disposed adjacent the sleeve in a plane that is transverse to the longitudinal axis. A bearing has a first race adjacent the body, a second race adjacent the sleeve and bearing elements therebetween. One race defines a ratchet and the other of the first race and the second race defines a pawl biased toward the ratchet. The O-ring biases the pawl toward the ratchet and when the pawl engages the ratchet prevents the second race from rotating in the opening direction with respect to the first race. | 08-19-2010 |
20100270758 | DRILL CHUCK - A chuck with a generally cylindrical body having a tail section configured to receive a drive shaft of a driver and a nose section having an axial bore formed therein. A plurality of jaws is movably disposed with respect to the body. A nut is rotatably mounted about the body and operatively engages the jaws. A sleeve is non-rotatably coupled to the nut. A shield cap is rotatably secured about the nose section of the body. The chuck also includes a first ring and a second ring that rotates relative to the nut over a limited arc. One of the first ring and the second ring defines a ratchet and the other defines at least one deflectable tab that is biased toward and engages the ratchet. | 10-28-2010 |
20110024997 | SELF-TIGHTENING CHUCK WITH A RADIAL LOCK - A drill chuck including a spindle portion with a pusher bore, a spindle bore, an annular array of teeth, and an annular groove defined by the outer surface of the first end. A body is rotatably disposed about the spindle portion and includes a central bore, an annular groove defined by the central bore, and a pawl pivotably mounted to the body for selectively engaging the annular array of teeth. A jaw pusher includes a threaded post and a head, the threaded post being disposed in the pusher bore and configured for axial motion. A jaw guide is disposed on the first end of the body and includes a plurality of jaw slots. A plurality of jaws is slidably received in the corresponding jaw slots and slidably received by the head of the jaw pusher. A plurality of bearing balls is received between the annular groove of the spindle portion and the annular groove of the body. The annular groove of the spindle portion and the annular groove of the body form a continuous pair of bearing races for the plurality of bearing balls. | 02-03-2011 |
20110266757 | LOCKING CHUCK - A chuck including a body having a tail section defining an annular shoulder and a nose section having an axial bore and angularly disposed passageways intersecting the axial bore. An O-ring is disposed in the annular shoulder and a plurality of jaws is slidably positioned in the passageways. A nut is rotatably mounted on the body in engagement with threads on the jaws. A first sleeve and a second sleeve each define a gripping surface thereon and one of the first and second sleeves is axially reciprocal on the body. The one of the first and second sleeves defines an annular groove on an inner surface thereof having a first shoulder and a second shoulder. The O-ring is received in the groove such that axial motion of the one of the first and the second sleeve is limited by abutment of the O-ring with said first and second shoulders. | 11-03-2011 |
20110272897 | LOCKING CHUCK - A chuck including a body with a nose section defining an axial bore formed therein, a plurality of jaws movably disposed with respect to the body, and a sleeve rotatably mounted about the body so that rotation of the sleeve moves the jaws relative to the axial bore. A bearing has a first race, a second race, and at least one bearing element disposed therebetween, one of the first race and the second race defining a ratchet and the other defining a pawl biased toward the ratchet. A biasing element is disposed between the pawl and the sleeve. The biasing element exerts a biasing force on the pawl toward the ratchet and the ratchet and the pawl prevent the second race from rotating in the opening direction with respect to the first race when engaged. | 11-10-2011 |
20110285097 | DRILL CHUCK - A chuck including a body having a tail section and a nose section defining an axial bore. A plurality of jaws are movably disposed with respect to the axial bore and a nut is in threaded engagement with the jaws. A sleeve engages the nut so that rotation of the sleeve moves the jaws. A first ring defines a plurality of teeth and a second ring is rotatable relative to the nut over a limited arc and defines at least one pawl. In a first state, the second ring is non-rotatable relative to the first ring in both the opening and closing directions, and in a second state the first and second rings are rotatable about the body, and the second ring is rotatable relative to the first ring in the closing direction. | 11-24-2011 |
20120242048 | DRILL CHUCK - A chuck including a body having a tail section and a nose section defining an axial bore. A plurality of jaws are movably disposed with respect to the axial bore and a nut is in threaded engagement with the jaws. A sleeve engages the nut so that rotation of the sleeve moves the jaws. A first ring defines a plurality of teeth and a second ring is rotatable relative to the nut over a limited arc and defines at least one pawl. In a first state, the second ring is non-rotatable relative to the first ring in both the opening and closing directions, and in a second state the first and second rings are rotatable about the body, and the second ring is rotatable relative to the first ring in the closing direction. | 09-27-2012 |
20130093144 | LOCKING CHUCK - A chuck including a body with a nose section defining an axial bore formed therein, a plurality of jaws movably disposed with respect to the body, and a sleeve rotatably mounted about the body so that rotation of the sleeve moves the jaws relative to the axial bore. A bearing has a first race, a second race, and at least one bearing element disposed therebetween, one of the first race and the second race defining a ratchet and the other defining a pawl biased toward the ratchet. A biasing element is disposed between the pawl and the sleeve. The biasing element exerts a biasing force on the pawl toward the ratchet and the ratchet and the pawl prevent the second race from rotating in the opening direction with respect to the first race when engaged. | 04-18-2013 |
20130147132 | LOCKING CHUCK - A chuck including a body having a tail section defining an annular shoulder and a nose section having an axial bore and angularly disposed passageways intersecting the axial bore. An O-ring is disposed in the annular shoulder and a plurality of jaws is slidably positioned in the passageways. A nut is rotatably mounted on the body in engagement with threads on the jaws. A first sleeve and a second sleeve each define a gripping surface thereon and one of the first and second sleeves is axially reciprocal on the body. The one of the first and second sleeves defines an annular groove on an inner surface thereof having a first shoulder and a second shoulder. The O-ring is received in the groove such that axial motion of the one of the first and the second sleeve is limited by abutment of the O-ring with said first and second shoulders. | 06-13-2013 |
20130168930 | CHUCK - A chuck for use with a driver having a rotatable drive shaft, the chuck including a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore. A plurality of jaws is movably disposed with respect to the body and in communication with the axial bore. A first sleeve is rotatably mounted to the body in operative communication with the jaws so that rotation of the sleeve moves the jaws either toward a longitudinal center axis of the axial bore or away from the longitudinal center axis. A second sleeve is rotatably mounted to the body and is movable between a first position in which the second sleeve is rotatably fixed to the body and a second position in which the second sleeve is rotatable about the body. The second sleeve moves in a direction transverse to the longitudinal center axis of the axial bore when moving between the first position and the second position. | 07-04-2013 |
20140077463 | LOCKING CHUCK - A chuck including a body having a nose section with an axial bore formed therein, a plurality of jaws in communication with the axial bore, a sleeve rotatably mounted about the body in operative communication with the jaws, the sleeve defining an annular groove adjacent its rear perimeter, a rear cover defining an annular ridge that is received in the annular groove of the sleeve, and a bearing having a first race, a second race and at least one bearing element, wherein one of the first race and the second race defines a ratchet, wherein the other of the first race and the second race defines a pawl, the ratchet and the pawl are configured so that when the pawl engages the ratchet, the ratchet and pawl prevent the second race from rotating in the opening direction with respect to the first race. | 03-20-2014 |
20140131957 | DRILL CHUCK - A drill-chuck body is rotatable about an axis and formed with a plurality of passages opening axially rearward at a rear face of the body and radially outwardly at windows in a side of the body. Jaws displaceable between front and rear positions in the passages each have a row of teeth exposed radially outwardly at the respective windows. A tightening ring rotatable about the axis is formed with an internal screwthread engaged at the windows with the teeth such that rotation of the ring moves the jaws between the front and rear positions. A tightening sleeve fitted around and coupled rotationally to the tightening ring extends axially rearward past the windows. This brace ring is radially inwardly engaged with the body and engages radially outwardly between the windows and the rear face with the tightening sleeve so as to coaxially center it on the body. | 05-15-2014 |
20140203525 | LOCKING CHUCK - A chuck including a body with a nose section defining an axial bore formed therein, a plurality of jaws movably disposed with respect to the body, and a sleeve rotatably mounted about the body so that rotation of the sleeve moves the jaws relative to the axial bore. A bearing has a first race, a second race, and at least one bearing element disposed therebetween, one of the first race and the second race defining a ratchet and the other defining a pawl biased toward the ratchet. A biasing element is disposed between the pawl and the sleeve. The biasing element exerts a biasing force on the pawl toward the ratchet and the ratchet and the pawl prevent the second race from rotating in the opening direction with respect to the first race when engaged. | 07-24-2014 |
20140265163 | LOCKING CHUCK - A chuck includes a body having a nose section with an axial bore and a plurality of passageways formed therein, and a plurality of jaws disposed in the passageways. A nut for driving the jaws is rotatably mounted about the body and a sleeve defining a first recess and a second recess is rotatable with respect to the nut between a first rotational position and a second rotational position. An array of locking teeth is fixed to the body and a pawl member with an engagement portion is non-rotatably fixed to the nut. The engagement portion is received in the second recess and engages the locking teeth when the sleeve is in the second rotational position, the engagement portion being compressed so that an amount of force is exerted on the nut in the closing direction by the engagement portion. | 09-18-2014 |
20140265164 | DRILL CHUCK - A chuck including a body having a tail section and a nose section defining an axial bore. A plurality of jaws are movably disposed with respect to the axial bore and a nut is in threaded engagement with the jaws. A sleeve engages the nut so that rotation of the sleeve moves the jaws. A first ring defines a plurality of teeth and a second ring is rotatable relative to the nut over a limited arc and defines at least one pawl. In a first state, the second ring is non-rotatable relative to the first ring in both the opening and closing directions, and in a second state the first and second rings are rotatable about the body, and the second ring is rotatable relative to the first ring in the closing direction. | 09-18-2014 |
20150130144 | DRILL CHUCK - A drill chuck having a chuck body, which is produced from plastic, in particular from fibre-reinforced plastic, and has a spindle holder and a tool holder and in which clamping jaws that can be adjusted by a threaded ring are guided. The chuck body has a securing ring on an outer circumference in a region of the tool holder. | 05-14-2015 |
20150290719 | POWER DRILL - A drilling apparatus has a housing, a motor in the housing, a drive spindle rotatable about an axis on the housing, a chuck body, and a plurality of jaws shiftable in the chuck body. First and second elements interconnected by a screw thread and engaged between the body and the jaws for shifting the jaws on the housing. A drive sleeve rotationally fixed to the first element is drivable by the motor. | 10-15-2015 |
20150306675 | CHUCK ASSEMBLY FOR A ROTARY POWER TOOL - A chuck assembly, for use with a rotary power tool, includes a chuck body rotatable about an axis, a plurality of jaws supported by the chuck body for relative movement therewith between a retracted position for permitting insertion of a tool bit within the chuck body and an extended position for clamping the tool bit, a plurality of clamping nuts surrounding the chuck body and having interior threads engageable with corresponding threads on the respective jaws, a tightening sleeve surrounding and threadably engaged with the chuck body for relative rotation therewith, and a wedge defined on the tightening sleeve for selective engagement with the clamping nuts for inwardly displacing the clamping nuts, causing the respective threads on the clamping nuts and jaws to engage, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction. | 10-29-2015 |
20150314375 | DRILL CHUCK - A drill chuck having a chuck body that has a receptacle on its axially rearward end, having clamping jaws that can be moved relative to the chuck axis, and having a clamping sleeve that serves to move the clamping jaws. An adapter body can be placed in the receptacle and coupled in a torque-transmitting manner, which adapter body has an adapter receptacle for detachable connection to the drilling spindle of a power drill and has, in the wall of the adapter receptacle, at least one detent element that can be moved by a release sleeve. | 11-05-2015 |
279063000 | Threaded central cone and jaw | 2 |
20090072502 | Chuck Body for a Chuck, Chuck and Method for Determining a Clamping Force on Such a Chuck - A chuck body for a clamping chuck for clamping a workpiece has a substantially rotationally symmetrically formed basic body, provided on which is a receiving opening, which is formed as a portion of a cone and is formed for receiving a clamping head in such a way as to transmit force. Attached to the basic body is a deformation sensor, for example as a strain gauge, which is intended and designed for determining a deformation of the basic body in a circumferential direction. In this way, the condition and state of wear of the clamping chuck can be determined. | 03-19-2009 |
20150115551 | DRILL CHUCK - A drill chuck having a chuck body, on which a threaded ring is guided, which is in engagement with rows of teeth assigned to clamping jaws via an outer thread for the purpose of adjusting the clamping jaws guided in the chuck body, as well as having a clamping sleeve which surrounds the chuck body and may be coupled with the threaded ring in a torque-transmitting manner. The chuck body is formed in multiple parts from a coupling part having a spindle receptacle and from a jaw guiding part, in which guide receptacles run, inclined toward the chuck axis, for the purpose of guiding the clamping jaws. | 04-30-2015 |
279065000 | Reciprocating jaw advancing sleeve | 1 |
20160052062 | TOOL HOLDER - A tool holder includes a basic body, in which a tool receiving region is located, a circular cylindrical clamping chuck having several joints and an external thread which has an external pitch angle, as well as a union nut having an internal thread which has an internal pitch angle. The union nut has a stopping face on the basic body or on the clamping chuck. The external pitch angle is different from the internal pitch angle. | 02-25-2016 |