| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 279035000 | Pivoted jaws | 30 |
| 279000000 | Moving-cam actuator | 30 |
| 279037000 | Reciprocating cam sleeve | 1 |
| 20120200049 | CHUCK - A chuck has a body rotatable about an axis and formed centered on this axis with a passage. Pivots angularly equispaced about the axis in the chuck body define respective pivot axes. An actuating sleeve axially shiftable in the passage carries a piston disk having a frustoconical outer surface centered on the chuck axis and axially shiftable in the body by the sleeve. Respective shafts journaled in the pivots and rotatable therein about the respective pivot axes each have an outer surface portion that is frustoconical and centered on the respective pivot axis. Respective levers fitted to the frustoconical surface portions of the shafts each have a front arm projecting axially forwardly from the shaft out of the chuck body and adapted to carry a tool-gripping jaw and a rear arm projecting axially rearwardly from the shaft and engageable by the outer surface of the disk. | 08-09-2012 |
| 279047000 | Threaded sleeve and wedge | 2 |
| 20080224424 | Tool chucking apparatus - A tool chucking apparatus to hold a machining cutter or tool includes a holding member and a fastening member that are coupled together to form a housing space inside to hold a clipping member in a tight manner. The coupled holding member, fastening member and clipping member form a threaded passage to hold the cutter or tool through the clipping member. The clipping member has a plurality of pawl structures which are spaced in an annular manner and formed in a conical structure. The conical structure has a top end directing towards the fastening member. The fastening member and the holding member have respectively a corresponding coupling structure. The fastening member further has an encasing portion extended towards the holding member. | 09-18-2008 |
| 20160114406 | TOOL CLAMPING DEVICE - A tool clamping device for holding a cutting tool, the tool clamping device includes a holder, a collet coupled to the holding cavity, and a lock nut. The holder defines a holding cavity. The lock nut includes a nut body engaged with the holder, a rotating member received in the nut body, and a plurality of rollers assembled to the rotating member. The collet is connected to the rotating member, and the nut body rotates relative to the rotating member by the plurality of rollers. The lock nut is configured to press the collet in the holding cavity, and the cutting tool is clamped by the collet. | 04-28-2016 |
| 279048000 | Threaded cam sleeve | 6 |
| 20100096814 | TOOL HOLDING MODULE - A tool holding module comprises a fixture seat and a tool rod. The fixture seat has a first outer surface on an external wall, a first top surface on one end, and a fixture head is located on the same end. The fixture head has a second outer surface on an external wall and a second top surface on one end. The internal wall of the tool rod has first and second inner surfaces respectively corresponding to the first and second outer surfaces, and has first and second butting surfaces respectively corresponding to the first and second top surfaces. The tool rod and fixture seat are connected to enfold the fixture head. The security of the tool holding module is enhanced via close contact of the first outer and inner surfaces, the second outer and inner surfaces, the first top and butting surfaces, the second top and butting surfaces. | 04-22-2010 |
| 20100148455 | Tool holder - A tool holder includes: a collet chuck main body having a tapered hole formed in its tip end portion so as to be tapered toward an axial rear end; a tapered collet having a tool insertion hole that extends in an axial direction, a main tapered surface that fits in the tapered hole, and a tip end tapered surface positioned on an axial tip end side of the main tapered surface, and tapered toward an axial tip end; a cylindrical lock nut having internal threads that are screwed on external threads formed on an outer periphery of the tip end portion of the collet chuck main body, for reducing a diameter of the tool insertion hole by pressing the tapered collet into the tapered hole; a tip end tapered member having a tapered abutting surface that fits on the tip end tapered surface, the tip end tapered member being pressed toward the axial rear end by the lock nut; and a plain bearing positioned in a plane perpendicular to a direction in which the tip end tapered member is pressed by the lock nut, the plain bearing being inserted between the lock nut and the tip end tapered member. | 06-17-2010 |
| 20110068545 | Interface between a receptacle body and an insert designed, in particular, as a tool holder of a workpiece holder - An interface between a receptacle body and an insert designed, in particular, as a tool or workpiece insert, comprises a receptacle body ( | 03-24-2011 |
| 20140054866 | Cutting Tool Lock Nut Having Grooved Collet-Locking Surface and Cutting Tool Incorporating Same - A cutting tool includes a chuck, a compressible conical collet and a lock nut for locking the collet. The cutting tool lock nut has a nut portion with a threaded portion for threading with the chuck, and a locking portion with a collet-locking surface formed with angled coolant grooves thereon. The collet-locking surface presses on the collet head, thereby compressing it to grip a tool shank in a collet bore thereof. As the locking portion presses only against a peripheral surface of the collet head, the lock nut is suitable for locking collets with different bore diameters. When the chuck is provided with a coolant fluid, the coolant fluid flows through the chuck and through the collet towards the locking portion, passing through the coolant notches between the locking portion and the collet head, and sprayed towards a location along the tool shank. | 02-27-2014 |
| 20160016236 | COOLING OR LUBRICANT SUPPLY FOR LATHE TOOLS - The device for supplying cooling or lubricating fluid to rotationally fixed tools clamped in lathes consists of a clamping nut with an outer cylindrical surface arranged on its outer side, an annular groove arranged therein and connected by bores to the inner side, and an outer sleeve placed onto the outer cylindrical surface and rotatable relative to the clamping nut with a hose connector for supplying cooling or lubricating fluid. | 01-21-2016 |
| 279049000 | Loose jaws | 1 |
| 20090322042 | CONSTITUENT MEMBER OF COLLET, CHUCK, COLLET AND FASTENING NUT AND COLLET CHUCK - It is an object of the invention to provide a constituent member of a collet chuck, a collet and a fastening nut as well as a collet chuck capable of reinforcing a holding force of a tool. As means therefor, in a collet chuck including a chuck body having a taper hole in an inwardly converging shape, a diameter contractable collet having a first taper face fitted to the taper hole, and a fastening nut screwed to the chuck body, there is provided a force increasing collet with a first contact face and a second contact face respectively brought into contact with a second taper face formed at an outer peripheral face of a front end portion of the collet and inclined to reduce an outer diameter as proceeding to a front end thereof, and a third taper face formed at an inner peripheral face of a front end portion of the fastening nut and inclined to reduce an inner diameter as proceeding to a front end thereof, wherein in a state of fastening the fastening nut to the chuck body, a front side of the first contact face of the force increasing collet is not brought into contact with an outer peripheral face of the collet in a state of pressing the collet frontwardly. | 12-31-2009 |
| 279050000 | Reciprocating cam sleeve | 5 |
| 20100201083 | CHUCK FOR A TUBULAR BODY - The invention relates to a tensioning device for a hollow shaft ( | 08-12-2010 |
| 20110187062 | COLLET SYSTEM - A collet system having greater axial load capability and debris protection includes a sleeve and a collet. The collet is disposed in a debris protected position relative to the sleeve and is radially adjacent and axially supported by sleeve. | 08-04-2011 |
| 20120153580 | DEVICE FOR GRIPPING TREATMENT TOOL OF HANDPIECE - A device for gripping a treatment tool of a handpiece is provided that can firmly grip the treatment tool and achieve a high vibration absorbing property. The device for gripping a treatment tool of a handpiece includes: a spindle rotatably installed; and a coil spring that is set in the spindle and rotated integrally with the spindle, the treatment tool inserted from a tip of the spindle into the coil spring being gripped by an inner diameter surface of a grip portion of the coil spring, and the coil spring has an inconstant natural frequency. Preferably, the coil spring includes the grip portion in a middle region thereof, and the grip portion has a smaller inner diameter than that of other regions. | 06-21-2012 |
| 20140103611 | Bi-Directional Quick Change Tool-Less Lever and Wedge Actuated Collet Chuck, System and/or Method for Using the Same - A bi-directional quick change tool-less lever and wedge actuated collet chuck, a system and/or a method provide symmetrical tool bit shank holding pressure before, during and after operation of a rotary-style power tool. The collet chuck is attached to and/or is integrated with high speed, variable speed and/or low speed rotary-style power tools, such as, for example, electrically driven rotary-style power tools and/or pneumatically-driven rotary-style power tools. The collet chuck provides tool-less automatic and/or tool-less manual tightening of the collet around a shank of an accessory for-the rotary-style power tool. The collet chuck, the system and/or the method provide tool-less manual loosening of the collet for accessory replacement. | 04-17-2014 |
| 20140333037 | BIT HOLDER WITH FLOATING MAGNET SLEEVE - A tool bit holder assembly includes a shank receivable in a tool holder of a rotary tool, and a body defining a socket that removably receives a tool bit. An annular recess, defined in an exterior surface of the body, has a front and rear shoulders and an axial length. A floating sleeve with a ring magnet at its front end is slidably received over the body with an elastic retainer movably received in the annular recess. The elastic retainer has an axial length less than the axial length of the annular recess to enable the sleeve to float axially between a rear position where the retainer abuts the rear shoulder and a front position where the retainer abuts the front shoulder. The sleeve is axially moveable rearward from the rear position to a parked position where the elastic retainer engages the body rearward of the rear shoulder. | 11-13-2014 |
| 279056000 | Threaded cam sleeve | 1 |
| 20100117311 | CLAMPING DEVICE AND COLLET CHUCK, BASE AND CHUCK KEY THEREFOR - The invention relates to a high-precision clamping device for tools in machine tools of the conventional type according to ISO 15488 and to a collet chuck, a base and a tensioning nut. The invention also relates to a chuck key for tightening the locknut without radial stress. The clamping device according to the invention is characterized by a substantially improved runout accuracy, torsional rigidity of the collet chuck and rigidity of the tool clamped therein. | 05-13-2010 |
| 279069000 | Threaded cam sleeve | 2 |
| 20130026719 | COUPLING DEVICE - A coupling device for coupling together a tool holder (3) with a rotatable spindle (2) of a machining machine. The coupling de-vice comprises: - a female-shaped coupling part (10) with an internally cone-shaped section (11) and a male-shaped coupling part (20) with an externally cone-shaped section (21); - an annular groove (25) arranged in the externally cone-shaped section; - locking balls (15), which are radially displaceable in radial holes (16) in the internally cone-shaped section; and - a locking sleeve (30), which is arranged on the outside of the female-shaped coupling part and which is rotatable between a releasing position, in which the locking balls can be displaced radially to a retracted position while allowing a mutual axial displacement between the coupling parts, and a locking position, in which the locking balls are kept in engagement in said groove while preventing a mutual axial displacement between the coupling parts. The locking sleeve is provided with radially springing guide members (31), which co-operates with a respective locking ball. | 01-31-2013 |
| 20150306674 | STRUCTURE-IMPROVED CLAMPING CHUCK - The invention relates to a structure-improved clamping chuck, which is mainly a sleeve provided for placing a clamp inside, a base is fastened on its rear end, and a through hole is set on its front end for a tool piece passing through, the clamp includes four jaws arranged in a ring, elastic elements are set in between two adjacent jaws, two limit ends are formed respectively between two inner sides of each jaw, one end of a drive rod is screwed in the sleeve, the drive rod is driven by electric (air) power, a roller tray is slipped on an upper end of the drive rod, an ejecting block is set on the roller tray, the ejecting block is set below the clamp. The ejecting block is pushed or left the clamp by rotating the drive rod, to clamp or departing from release a tool piece. | 10-29-2015 |
| 279071000 | Rotary eccentric-cam sleeve | 2 |
| 279072000 | Roller and rocking jaw | 2 |
| 20090033042 | Tool Chuck - A tool chuck ( | 02-05-2009 |
| 20100059943 | Manual Robotic Tool Changer with Rolling Members - A manually actuated robotic tool changer comprises master and tool units, each adapted to be connected to a different one of a robotic arm and a robotic tool. The tool changer includes a plurality of rolling members retained in one of the units and a piston mounted in one of the units and moveable in an axial direction. The piston includes a multi-faceted cam surface including an initial contact surface, a locking surface, and a failsafe surface interposed between the initial contact surface and the locking surface. When the piston is in a locked position in the tool changer, the cam surface is operative to contact the rolling members in one of the units and to urge each rolling member against a surface of the other unit to couple the master and tool units together. | 03-11-2010 |
| 279074000 | Reciprocating cam sleeve | 11 |
| 20080203680 | COLLET-TYPE CHUCK - A tool or workpiece has a mounting collar open axially outward, formed with a radially inwardly directed angled flank, and having a radial outer surface of noncircular cross-sectional shape. A chuck has a body formed with an axially forwardly open socket shaped to receive the collar with the axes generally coaxial and having an inner surface of a noncircular cross-sectional shape substantially complementary to the shape of the collar outer surface. A plurality of jaws axially fixed in the socket have radially movable ends engageable inside the collar and each formed with a radially inwardly and axially outwardly directed face. A cam having a face centered on the axis is engageable with the jaw front ends such that axial rearward shifting of the cam presses the jaw front ends outward and thereby presses the jaw faces against the collar flank to lock the collar in the socket. | 08-28-2008 |
| 20080252023 | Apparatus for Chucking a Tool or Workpiece Having a Collet - The invention relates to an apparatus for holding a workpiece ( | 10-16-2008 |
| 20090200759 | KEYLESS ARBOR DEVICE AND METHOD OF USING - A keyless arbor device for securing a tool, such as a drill bit, to a driver, such as a magnetic base drill. The device generally comprises at least one drive key pivotally combined with the arbor. The drive key has a first position wherein the drive key is retracted and a second position wherein the drive key is extended. The device also comprises a threaded member and an outer sleeve combined with the arbor. Rotation of the outer sleeve in a first direction causes the threaded member to move in a first direction and rotation of the outer sleeve in a second direction causes the threaded member to move in a second direction. The drive key is positioned so that as the threaded member is moved in its second direction, the threaded member makes contact with the drive key which forces the drive key to pivot from its first position to its second position thereby engaging the shank of the tool to secure the tool with the arbor. | 08-13-2009 |
| 20140027987 | Dual Size Tool-Bit Holder - A tool-bit holder ( | 01-30-2014 |
| 20140232073 | DEVICE FOR HOLDING MECHANICAL PARTS - This invention relates to a maintaining device for mechanical pieces, comprising a slider-holder formed by a body and a head with a central bore in which a part of the piece to be maintained is placed, the piece to be maintained exceeding the head, the head comprising conical area, the maintaining device having at least two sliders and an actuation element for the sliders, wherein the head comprises at least two lateral bores, one leading into the conical area and the other to the central bore, the sliders are placed in the lateral bores, the sliders being adjustable in the lateral bores, the sliders exceeding the conical area of the head, the actuation element of the sliders being arranged to move the sliders in the corresponding lateral bores along an axis perpendicular to a longitudinal axis of the central bore. | 08-21-2014 |
| 279075000 | Ball or roller jaws | 6 |
| 20090256319 | QUICK CHANGE CHUCK WITH LED LIGHTING - A quick change tool chuck has a housing with an LED light source incorporated therein, the housing being coaxially located about a quick change driver bit chuck. The housing can have two LED lamps which are focused at the end of an associated bit. | 10-15-2009 |
| 20090309316 | Chuck for Bit - 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 slidably 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. | 12-17-2009 |
| 20120326399 | Chuck - Disclosed is a chuck including a rod, a ball, two spring-loaded pushers, and a spring-loaded sleeve. The rod includes a hexagonal pocket axially defined therein, a circular pocket axially defined therein so that it is in communication with the hexagonal pocket, and an aperture transversely defined therein so that it is in communication with the hexagonal pocket. The ball is movably located in the aperture so that the ball can be partially inserted in the hexagonal pocket. The first spring-loaded pusher is movably located in the circular pocket for pushing a bit. The spring-loaded sleeve is movably located on the rod for pushing the ball in a direction. The second spring-loaded pusher is movably located between the rod and the sleeve for pushing the ball in an opposite direction. | 12-27-2012 |
| 20120326400 | Chuck - A chuck includes a cylinder, a ball, two spring-loaded pushers and a spring-loaded sleeve. The cylinder includes a hexagonal pocket axially defined therein, a circular pocket axially defined therein, and an aperture transversely defined therein. The ball is movably located in the aperture so that the ball can be inserted partially in the hexagonal pocket. The first pusher is movably located in the circular pocket for pushing a bit. The second pusher is movably located around the cylinder and abutted against the ball. The sleeve is movably located on the cylinder and formed with first and second annular ribs on an internal side thereof. The first rib is abutted against the second pusher while the second rib is abutted against the ball so that the ball is kept in the aperture while the second pusher is retained around the cylinder. | 12-27-2012 |
| 20120326401 | Bit Retention Device - A bit retention device includes a shaft having a sidewall defining a hexagonal cavity extending from a first end thereof and a ball groove extending through the sidewall and communicating with the hexagonal cavity. A ball is disposed in the ball groove and a ball spring engages the ball and biases the ball toward the first end. An actuator sleeve surrounding the shaft includes an internal ramp engaging the ball. A spring biased plunger assembly is disposed in the bore for biasing a bit received in the bore in a direction toward the insertion end. | 12-27-2012 |
| 20150102567 | TOOL JOINT - A tool joint is revealed. The tool joint includes a first main body, a second main body, locking members and a sleeve set. The first main body consists of a mounting part, a stopping part and a rear part. The second main body is disposed in the mounting part and having a polygonal assembly slot penetrating the second main body. Insertion holes are disposed close to an opening end of the assembly slot. The second main body is a polygonal column whose shape matches that of the polygonal assembly slot. The locking member is against the stopping part. The sleeve set is mounted in the assembly slot. The tool joint features on that the second main body is unable to rotate radially in the mounting part by the polygonal column design of the second main body locked with walls of a polygonal slot of the mounting part. | 04-16-2015 |
