Abstract: A connector (20) having an assembly (28) adapted to releasably receive an end (33) of a workpiece (22).

Abstract: A reciprocating saw comprising a reciprocatable spindle having an end adapted to receive a saw blade, and a blade clamp mechanism connected to the spindle and adapted to attach the saw blade to the spindle. The blade clamp mechanism includes an actuating member mounted on the end of the spindle, a locking member operatively associated with the actuating member, and a biasing member interconnected with the actuating member for biasing the actuating member toward an engaged position. A cover encloses a substantial portion of the biasing member. A housing, made from a thermally insulative material, is mounted to the actuating member. An ejecting member is interconnected with the spindle and is capable of engaging the saw blade such that the saw blade is urged away from the end of the spindle.

Abstract: A connector (20) having an assembly (28) adapted to releasably receive an end (33) of a workpiece (22).

Abstract: A quick coupler for mounting a rotational disk which enables the rotational disk to be quick connect to or disconnect from a pad conditioner disk holder is disclosed. The quick coupler consists of two major components of a disk holder and a travel housing. The disk holder is formed in a ring shape having a center aperture in a polygon shape for intimately engaging a polygon-shaped shaft of the travel housing such that a rotational torque can be transmitted from the travel housing to the disk holder. Each side of the polygon is provided with a steel ball and a recessed slot behind the ball for receiving a jutting key operated by a retractable ring attached to the travel housing. The travel housing is formed in a cylindrical shape that has a first end threaded for engaging a drive means and a second end in the polygon shape.

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.

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.

Abstract: A chuck device is provided for a tool bit with an annual groove. The chuck device includes a socket defining a chamber for receiving the tool bit and at least one aperture communicated with the chamber. A spindle extends from the socket. At least one ball is received in the at least one aperture for entering the annular groove of the tool bit. A first ring is mounted on the socket. A first elastic element is mounted on the socket. A sleeve includes a chamber defined therein so as to form an internal face, an annular groove defined in the internal face and an annular rib formed on the internal face. The sleeve is mounted on the socket so that the elastic element is compressed between the ring and the annular rib, thus biasing the sleeve. A second ring is fit in the sleeve for abutting the first ring so as to retain the sleeve on the socket. A second elastic element is put in the chamber of the socket for pushing the tool bit.

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.

Abstract: A removable chuck has a chuck member for holding a drill bit. Also, a mechanism is coupled with the chuck body to retain the chuck body to a drill spindle. The retention mechanism, in a first position, has at least one biased blade, in a non-biased condition, retaining the chuck on the drill spindle and in a second position, with the at least one biased blade in a biased condition, the chuck is enabled to be removed from the spindle.

Abstract: The invention relates to a tool-receiving element, the tool-clamping device thereof being directly integrated into the rotating machine. A multiple-edge longitudinal recess (21,121,221), especially a hexagonal recess, extends into the drive shaft (18,118,218) from the output-side front end thereof. A clamping sleeve (25,25′,125,225) is received on the section of the drive shalt comprising the tool-receiving element, in the form of a tool-clamping device, by which means at least one locking element (24,124,224) received in a radial recess penetrating the shell of the tool-receiving element can be actuated in a locking position protruding radially into the tool-receiving element, and can be released in an unlocking position for radial yielding.

Abstract: A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion hole that extends in an axial direction. The tool-holding tube is formed with an elongated hole that is in connection with the bit insertion hole and that extends in the axial direction. The engagement member is disposed in the elongated hole and partially protrudes into the bit insertion hole. The engagement member is movable, by abutment with and pressing force from the bit being inserted into the bit insertion hole, in the axial direction and, when located at a retraction position in the axial direction, also outward in a radial direction of the tool-holding tube. The resilient member is disposed to an outer periphery of the tool-holding tube at the retraction position.

Abstract: In one embodiment, the present invention includes an apparatus including an adaptor body having a first end to be coupled to a rotary device and a second end having a tapered portion, and a tool adaptor dimensioned to fit within the tapered portion, the tool adaptor having a receiving end to receive a tool, such as a bit.

Abstract: A chuck device includes a socket, a ball, a first ring, an elastic element, a sleeve, a second ring and a spindle. The socket includes a first chamber defined therein. The first chamber includes a number of slots for receiving the corners. The socket includes a hole defined therein in communication with one of the corner-receiving slots. The ball is received in the hole for engagement with the recess defined in one of the corners of the miniature tool bit. The first ring is formed around the socket. The elastic element is mounted on the socket so as to be compressed between the ring and the annular rib, thus biasing the sleeve. The sleeve includes an annular groove defined in and an annular rib formed on an internal surface thereof. The sleeve is mounted on the socket. The second ring is connected with the sleeve for engagement with the first ring, thus retaining the sleeve on the socket. The spindle is connected with the socket.

Abstract: The quick-release chuck for a rotary power tool is provided for holding a tool bit. The chuck includes a barrel having an axial bore to receive the tool bit and an axially movable sleeve operable to position a locking member to selectively lock or release the tool bit. A proximal end of the chuck near the housing of the power tool includes a low-profile collar which holds a spring in compression against the sleeve, biasing the sleeve in a distal, locked position. The components of the chuck may advantageously be assembled in a stacked manner. The low-profile collar permits the chuck to occupy a minimal length and to be positioned with a minimal separation from the housing of the power tool for enhanced safety.

Abstract: A mandrel assembly is usable with a hole saw and a drill bit. The mandrel assembly includes a body having a shank portion and an adapter receiving portion. The adapter receiving portion defines an adapter receiving cavity and including a first wall having a first detent hole extending therethrough. The mandrel assembly further includes a bit coupler secured to the body. The bit coupler is located within the adapter receiving cavity and defines a drill bit receiving portion. The drill bit receiving portion includes a bit receiving cavity and a second wall having a second detent hole extending therethrough. The mandrel assembly further includes an adapter configured to be received within the adapter receiving cavity, the adapter having an externally threaded portion configured to meshingly engage with a set of internal threads of the hole saw, the adapter further having a first detent groove defined in an outer surface thereof.

Abstract: The quick-release chuck for a rotary power tool is provided for holding a tool bit. The chuck includes a barrel having an axial bore to receive the tool bit and an axially movable sleeve operable to position a locking member to selectively lock or release the tool bit. A proximal end of the chuck near the housing of the power tool includes a low-profile collar which holds a spring in compression against the sleeve, biasing the sleeve in a distal, locked position. The components of the chuck may advantageously be assembled in a stacked manner. The low-profile collar permits the chuck to occupy a minimal length and to be positioned with a minimal separation from the housing of the power tool for enhanced safety.

Abstract: A tool-less blade clamps (10, 50) may include a rod (2, 52) having a slot (2a, 2c, 52c) and a guide slot (2b, 52b) formed substantially perpendicularly to the slot (2a, 2c, 52c). A control member (20, 56) may be slidably disposed within the slot (2a, 2c, 52c) and a spring (21, 57) preferably biases the control member (20, 56) towards a forward portion of the slot (2a, 2c, 52c). The rod (2, 52) rotatably supports a sleeve (11, 53). Preferably, the sleeve (11, 53) being prevented from axially displacing with respect to the rod (2, 52) when the sleeve (11, 53) rotates about the rod (2, 52). An L-shaped slot (16, 53a) may be formed in the sleeve (11, 53) and may have a blade lock slot (16b, 53ab) disposed substantially perpendicularly to a blade lock control slot (16a, 53aa). The control member (20, 53) may include a pin (22, 55) that extends through the guide slot (2b, 52b) and travels within the L-shaped slot (16, 53a).

Abstract: The tool mount has a body (12) with means for housing a tool with grooves, whereby the body (12) is equipped with a clamping mechanism (14, 16, 18, 20) with which the tool can be clamped in position in the body (12), and an operating element (24) for unclamping the tool is provided.

Abstract: A tool-bit holder for receiving a tool-bit that automatically captures the tool-bit as it is inserted into the holder with a quick release mechanism to prevent axial withdrawal of the tool-bit from the holder. The tool-bit includes a shank portion with a circumferential groove. The tool-bit holder also includes a hub having a longitudinal bore for receiving the shank and a radial bore partially housing a detent ball used to capture the tool-bit shank at its circumferential groove within the tool-bit holder. A sleeve is axially slidably mounted relative to the hub and has a radial bore in communication with the radial bore of the hub for reception of the detent ball. The sleeve is axially biased by a spring and forces the detent ball against and along an inner ramp face fixed relative to the hub. The inner ramp face forces the detent ball radially inwardly and through the radial bore to seat in the circumferential groove of the tool-bit shank.

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.

Abstract: A drill chuck has a body formed with an axially forwardly open tool recess and holding a plurality of tool-gripping jaws. A socket formed with an axially forwardly open polygonal-section seat is nonrotatable in a seat of the chuck body and axially displaceable in the chuck body into and out of a tool-releasing position. A latch is radially displaceable in the socket in the tool-releasing position of the socket between an inner retaining position projecting radially into the seat and an outer freeing position clear of the seat and projecting radially into the pocket. The latch is aligned radially with the pocket only in the tool-releasing position. The chuck body engages the latch and forces it into the inner retaining position.

Abstract: A drive spindle is formed with an axially forwardly open socket of noncircular section and with at least one radially throughgoing passage open radially inward into the socket. A chuck body has a stem of noncircular section complementary to that of the socket and formed with a radially outwardly open recess. A locking element is radially displaceable in the passage between an inner position projecting radially inward into the socket and an outer position clear of the socket and projecting radially outward from the spindle. The stem is fittable to the socket with its recess aligned with the passage. A collar is formed with an inner surface closely juxtaposed with an outside surface of the spindle and with a radially inwardly open recess.

Abstract: A removable chuck has a chuck member for holding a drill bit. Also, a mechanism is coupled with the chuck body to retain the chuck body to a drill spindle. The retention mechanism, in a first position, a biasing member in a non-biasing condition, retains the chuck on the drill spindle and in a second position, with the biasing member in a biased condition, the chuck is enabled to be removed from the spindle.

Abstract: A removable chuck has a chuck member for holding a drill bit. Also, a mechanism is coupled with the chuck body to retain the chuck body to a drill spindle. The retention mechanism, in a first position, retains the chuck on the drill spindle and in a second position the chuck is enabled to be removed from the spindle.

Abstract: A two-way quick connector for connecting a power drill to a working tool having a working end and a shank end having a circumferential groove. The connector having a drive shaft with a polygonal-shaped chuck end to be received by the chuck of a power drill, and a cylindrically-shaped opposite end having an axial bore for receiving the shank end of the working tool. The connector further having a ball detent and a two-piece slidable sleeve mounted on the drive shaft, which sleeve may be manipulated in either of two directions to manipulate the ball detent into the circumferential groove of the working tool.

Abstract: A hand power tool has a tool holder with a base body; a drive part; at least one locking body for connecting the base body of the tool holder with the drive part; a securing body which radially fixes the at least one locking body in an engaging position; an actuating element operative for unlocking the tool holder and guiding the securing body to a position which radially releases the locking body, the base body in a locking position surrounding at least a part of the drive part.

Abstract: A chuck has a body centered on an axis and formed with a rearwardly open bore adapted to fit with a drive spindle. Respective jaws are displaceable in angled guides of the body and a ring rotatable on the body has an internal screwthread meshing with the jaws for moving the jaws between their end positions on rotation of the ring. A latch element is radially displaceable on the body between a holding position projecting radially into the bore and locking the spindle therein and a freeing position clear of the bore. A sleeve is displaceable between a latched position forcing the element into the holding position and an unlatched position allowing it to move into the freeing position. A spring between the sleeve and the body urges the sleeve into the latched position. The spring is mostly forward of rear ends of the jaws in the rear-end positions thereof.

Abstract: A drive tool is shiftable between locking and releasing configurations relative to an associated tool, the drive tool including a lock member moveable between a locking position and a release position relative to the associated tool, an actuator member moveable between a locking condition and a releasing condition, and coupling structure interconnecting the actuator member and the lock member. The lock member is tiltable to a latching condition which prevents its movement to its release position. In one embodiment the coupling structure is substantially rigid so that the lock member and the actuator move in substantially the same direction, and in another embodiment the coupling structure is flexible and resilient. The coupling structure may be fixedly coupled to the actuator member or may be loosely coupled thereto and biased to a rest condition.

Abstract: A wedging clamp assembly is provided for retaining a saw blade. A housing defining a vertical cavity therein is included in the assembly. The cavity includes a top end and a bottom end tapered with respect to the top end. Extending through a bottom end of the housing is a saw blade passageway included in the bottom end of the cavity. Disposed inside the cavity is a saw blade retention mechanism. A piston is further disposed within the cavity. The saw blade retention mechanism is configured for lockingly retaining a saw blade upon insertion into the passageway, thus, causing the piston to be biased against the bottom end of the cavity. At least one locking element is further included in the saw blade retention mechanism, and such locking element is disposed in the cavity for engaging the bottom tapered end. A wedging clamping force exerted by the at least one locking element is applied to the saw blade, and such force renders the saw blade immobile relative to the housing.

Abstract: A hand held power tool formed as a hammer drill has a strikingly drivable tool holder having a base body, at least one locking body with which the base body is form-lockingly connectable and through which the base body is fixable in a rotary direction in at least two positions, the locking body being formed as a ring-shaped component.

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.

Abstract: A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion hole that extends in an axial direction. The tool-holding tube is formed with an elongated hole that is in connection with the bit insertion hole and that extends in the axial direction. The engagement member is disposed in the elongated hole and partially protrudes into the bit insertion hole. The engagement member is movable, by abutment with and pressing force from the bit being inserted into the bit insertion hole, in the axial direction and, when located at a retraction position in the axial direction, also outward in a radial direction of the tool-holding tube. The resilient member is disposed to an outer periphery of the tool-holding tube at the retraction position.

Abstract: A tool-bit holding device in a percussion tool includes a rotatable and axially-movable retainer sleeve for accommodating a shank of a tool bit. A lock member supported by the retainer sleeve is movable radially with respect to the retainer sleeve. The lock member can engage the shank of the tool bit to limit axial movement of the tool bit. A small-diameter surface portion formed by an inner surface of a fixed front cover contacts the rock member and projects at least part of the lock member inward of the retainer sleeve to engage the lock member with the shank of the tool bit when the retainer sleeve is placed at an active position. A conic surface portion formed by the inner surface of the front cover is engageable with the lock member, and is able to variably limit radial movement of the lock member as the retainer sleeve moves axially.

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.

Abstract: A chuck has a body centered on an axis and formed with a rearwardly open bore adapted to fit with a drive spindle. Respective jaws are displaceable in angled guides of the body and a ring rotatable on the body has an internal screwthread meshing with the jaws for moving the jaws between their end positions on rotation of the ring. A latch element is radially displaceable on the body between a holding position projecting radially into the bore and locking the spindle therein and a freeing position clear of the bore. A sleeve is displaceable between a latched position forcing the element into the holding position and an unlatched position allowing it to move into the freeing position. A spring between the sleeve and the body urges the sleeve into the latched position. The spring is mostly forward of rear ends of the jaws in the rear-end positions thereof.

Abstract: The invention is an improvement to a chuck assembly of the type having a chuck hub with a longitudinally extending bore therein the longitudinally extending bore having a closed end, an open end, and a radially extending bit bore in communication with the longitudinally extending bore, and a bit ball movable in the ball bore between a first retracted position out of the longitudinally extending bore and a second engaged position partially in the longitudinally extending bore. The inventive improvement includes a shuttle slidably disposed in the longitudinally extending bore. The shuttle has a first longitudinally extending portion having a first lateral dimension and a second longitudinally extending portion having a second, smaller lateral dimension. The shuttle is movable longitudinally between a first release position and a second lock position.

Abstract: A punching machine has a power-driven plunger to which a punch is chucked to be driven into and out of a die for perforating sheet-metal work. The plunger has a punch socket formed centrally in its end for receiving the shank of the punch, and a plurality of ball guideways extending radially outwardly from the punch socket. Locking balls are slidably received one in each ball guideway for movement into and out of locking engagement in an annular groove in the shank of the punch received in the punch socket. Concentrically mounted on the plunger, a cam ring is sprung in one axial direction of the plunger for urging the locking balls into locking engagement with the punch shank. Each locking ball is elongated radially of the plunger with a view to reduction of the machine dimension axially of the plunger for given diameters of the plunger and the punch.

Abstract: An interchangeable coupling is provided for removably fastening tools (2) to manipulators (3). The interchangeable coupling has two coupling parts (5, 6) with a form fit lock (7). The lock has several mobile balls (8) and a piston (11) for moving the balls. The coupling parts (5, 6) have corresponding cavities (9, 10). The cavities (9) in the tool side coupling part (5) are essentially cylindrical ball channels (30) with an oblique channel axis (31). In a locked position, these cavities (9) accommodate the blocking balls (8). The channel axis (31) preferably slopes from the robot-sided cavity (10) towards the tool side (2).

Abstract: A toolholder assembly is disclosed having an elongated spindle adapted to be rotatably driven about a longitudinal axis. The spindle also includes a longitudinally extending bore open at one end. A chuck has a collet at one end for holding a tool and an elongated shank at its other end adapted for insertion into the spindle bore. A ball lock assembly releasably coaxially secures the chuck to the spindle upon insertion of the chuck shank into the spindle bore to an operable position. The chuck also includes a conical surface at the free end of the shank. This free end of the shank engages a spring loaded piston positioned at the innermost end of the spindle bore when the chuck is inserted into the spindle to its operable position and this piston includes a conical surface complementary to the conical surface on the shank. The cooperation between the ball lock assembly and the piston coaxially and securely, but releasably, secures the chuck to the spindle.

Abstract: A mandrel assembly is usable with a hole saw and a drill bit. The mandrel assembly includes a body having a shank portion and an adapter receiving portion. The adapter receiving portion defines an adapter receiving cavity and including a first wall having a first detent hole extending therethrough. The mandrel assembly further includes a bit coupler secured to the body. The bit coupler is located within the adapter receiving cavity and defines a drill bit receiving portion. The drill bit receiving portion includes a bit receiving cavity and a second wall having a second detent hole extending therethrough. The mandrel assembly further includes an adapter configured to be received within the adapter receiving cavity, the adapter having an externally threaded portion configured to meshingly engage with a set of internal threads of the hole saw, the adapter further having a first detent groove defined in an outer surface thereof.

Abstract: A connector (20) having an assembly (28) adapted to releasably receive an end (33) of a workpiece (22).

Abstract: A powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member is adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.

Abstract: A rotary device has a releasable tool holder. A spindle with two ends has one end adapted to secure to a rotary device and the other includes a bore to receive a tool. A mechanism to retain and release the tool from the spindle bore is coupled with the spindle adjacent the bore end. At least two unlike retention members to apply a force on the tool in the bore are adjacent the bore. A sleeve surrounds the bore end of the spindle as well as the at least two unlike retention members. The sleeve has a common surface to apply a force on the at least two unlike retention members such that when the sleeve is axially moved along the spindle, the force is varied with respect to the position of the surface on the retention member. This force maintains the tool in the bore or enables the tool to be removed from the bore. A biasing member maintains the sleeve in a retention position on the spindle.

Abstract: A punching machine has a power-driven plunger to which a punch is chucked to be driven into and out of a die for perforating sheet-metal work. The plunger has a punch socket formed centrally in its end for receiving the shank of the punch, and a plurality of ball guideways extending radially outwardly from the punch socket. Locking balls are slidably received one in each ball guideway for movement into and out of locking engagement in an annular groove in the shank of the punch received in the punch socket. Concentrically mounted on the plunger, a cam ring is sprung in one axial direction of the plunger for urging the locking balls into locking engagement with the punch shank. Each locking ball is elongated radially of the plunger with a view to reduction of the machine dimension axially of the plunger for given diameters of the plunger and the punch.

Abstract: A removable chuck has a chuck member for holding a drill bit. Also, a mechanism is coupled with the chuck body to retain the chuck body to a drill spindle. The retention mechanism, in a first position, has at least one biased blade, in a non-biased condition, retaining the chuck on the drill spindle and in a second position, with the at least one biased blade in a biased condition, the chuck is enabled to be removed from the spindle.

Abstract: A chuck device for a tool of the type having a bit on an end thereof and a drill on the other end thereof includes a spindle with a stub formed on an end thereof, a tube including a first section mounted around the stub of the spindle and a second section, a sliding sleeve slidably mounted around the tube, and a ball partially received in a transverse countersink in the second section of the tube. A first elastic member is mounted around the tube and attached between an outer shoulder of the tube and an inner shoulder of the sliding sleeve. A second elastic member includes a first end received in the stub and a second end in the tube. When the chuck device is in a condition not receiving the tool, the ball is moved out of the longitudinal hole of the tube and partially located in the annular groove of the sliding sleeve under the action of the second elastic member, and the first elastic member is in a compressed status.

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.

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.

Abstract: A chuck for screwdriver inserts (20), having an insertion cavity (8) of a bush (5), the insertion cavity (8) being adapted in cross section to the polygonal section of the insertion shank (23) of the bit, windows (16) opposite one another in the corner region of the insertion cavity (8) being located in the bush (5), and round clamping bodies (19, 19′) lying in said windows (16) on supporting shoulders (18), the diameter of which clamping bodies (19, 19′) is greater than the window wall thickness and which are loaded inward toward the cavity by an inclined surface (14) of a spring-loaded actuating sleeve (9) and press in point contact against the corner of a corner recess of the insertion shank (23).

Abstract: The invention relates to a tool system that can be coupled to the drive shaft of a lathe. Said system comprises a tool holding fixture which can be connected to the lathe, and a took which is stored in a polygonal recess in the tool holding fixture so as to be torsion-proof yet removable. This tool has a tool shank and at least one functional section extending coaxially therefrom. The tool rests axially on a centering area in the polygonal recess, and rests radially on several identical locking elements. These are arranged in radial cavities in the tool holding fixture, at equal angular distances and at an axial distance from the centering area. This enables centering of the tool in the tool holding fixture.