Abstract: A chuck device is provide with an annular ratchet tooth wheel in a body, an annular nut member that engages with claws nd rotates together with a rotary sleeve, and a retainer spring member for engaging the ratchet tooth wheel. The retainer spring member is rotated around the ratchet wheel in accordance with rotation of a retainer spring receiving sleeve within the retainer spring receiving sleeve t at rotates together with a nut member and that is fitted around the nut member and made of metal. The retainer spring member is mounted on the retainer spring receiving sleeve by a convex/concave engagement means. A retainer working portion is provided in a working sleeve, for rotating with the retainer spring receiving sleeve.

Abstract: A chuck for use with a manual or powered driver having a rotatable drive shaft includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft and the nose section has an axial bore formed therein. A plurality of jaws are movably disposed with respect to the body toward and away from the axial bore. Each jaw includes a back surface and a tool engaging surface opposite the back surface. The tool engaging surfaces are disposed facing generally parallel to the axis of the axial bore and a plurality of grinds are defined across each tool engaging surfaces to form a helical pattern on the tool engaging jaw surfaces when the tool engaging surfaces are disposed at a predetermined position with respect to the axis of the axial bore.

Abstract: A chuck for a power tool having a plurality of chuck jaws of the type that open to receive a work tool and close to grip the work tool, wherein the chuck comprises a front sleeve, a rear sleeve, and an integral chuck jaw unit fitted within the front and rear sleeves in a removable manner. The chuck jaw unit includes a plurality of chuck jaws, a support body having individual jaw bores for receiving the chuck jaws, a traveler affixed to the remote ends of the chuck jaws; and an operator for reciprocating the traveler along a chuck axis to open and close the chuck jaws. The traveler includes internal traveler threads and the operator includes a threaded barrel in the form of a jack screw on which the traveler threads up and down. The operator of the chuck unit and the rear sleeve may be press fitted together so that manual rotation of the rear sleeve causes the operator to rotate whereby the traveler reciprocates.

Abstract: A chuck for a power tool having a plurality of chuck jaws of the type that open to receive a work tool and close to grip the work tool, wherein the chuck comprises a front sleeve, a rear sleeve, and an integral chuck jaw unit fitted within the front and rear sleeves in a removable manner. The chuck jaw unit includes a plurality of chuck jaws, a support body having individual jaw bores for receiving the chuck jaws, a traveler affixed to the remote ends of the chuck jaws; and an operator for reciprocating the traveler along a chuck axis to open and close the chuck jaws. The traveler includes internal traveler threads and the operator includes a threaded barrel in the form of a jack screw on which the traveler threads up and down. The operator of the chuck unit and the rear sleeve may be press fitted together so that manual rotation of the rear sleeve causes the operator to rotate whereby the traveler reciprocates.

Abstract: A chuck that can be operated with or without a key, depending upon the amount of torque desired. The jaws are controlled by rotation of a screw ring about the axis of the chuck body that slides the jaws along jaw passages by engagement with teeth on the jaw surfaces. The screw ring is housed in a tightening knob that has a planar ring gear perpendicular to the chuck body axis. A tail section is rigidly attached to the chuck body below the tightening knob and houses a pinion gear that matingly engages the planar ring gear and rotates in concert with the tightening knob. Insertion of a hex key into a recess in the pinion gear allows the application of additional torque. Alternate embodiments incorporate a idler gear to reverse pinion gear rotation; locate the pinion gear in the tightening knob with the planar ring gear in the tail section; and utilize a planar ring gear on both the tail section and the tightening knob with a floating ring to house the pinion gear between the planar ring gears.

Abstract: A chuck includes a generally cylindrical body member having a forward section and a rearward section. The rearward section is configured to mate with a manual or powered driver. A plurality of angularly disposed passageways is formed in the forward section of the body and intersect an axial bore formed therein. The body defines a ledge portion about its outer circumference and a front face transverse to the longitudinal body axis. One of a plurality of jaws is slidably positioned in each passageway. A nut is rotatably mounted to the body rearward of the ledge portion so as to engage the jaws. A generally cylindrical sleeve engages the nut and includes a flexible protrusion extending axially rearward from an inner circumferential surface of the sleeve proximate the sleeve forward end. The protrusion has a tab portion disposed rearward of the ledge portion and projecting radially inward of the outer circumference of the ledge portion to prevent forward axial movement of the sleeve with respect to the body.

Abstract: A manually tightened chuck including a hollow chuck body member, provided with three bores inclined forwardly toward a central axis. A jaw is slidable in each inclined bore, a nut is sheathed on the peripheral surface of the chuck body member, and is interconnected with each jaw through threads. A peripheral surface of the nut is provided with a front sleeve, and on a peripheral surface of the chuck body member a rear sleeve is sheathed also. In the middle of the chuck body member a stepped part extends radially outwardly and includes a surface opposite to a rear end surface of the nut. Plural bearing balls are disposed in circular grooves formed in the opposed surfaces of the nut and chuck body member.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication with the jaws. The sleeve engages the body or the jaws by a first set of interengaged threads so that relative rotation between the first threads drives the jaws toward or away from the chuck axis. The sleeve engages the body or the jaws by a second set of interengaged threads so that relative rotation between the second threads drives the jaws toward or away from the chuck axis. The first thread set defines a first pitch so that when the jaws close, the first threads rotationally lock in the closing direction. The second thread set defines a second pitch that is higher than the first pitch so that when the jaws close, the second threads are relatively rotatable in the closing direction.

Abstract: A drill chuck has a body formed with an axially forwardly open tool-receiving recess and with a plurality of angled guides opening axially forward in the recess. Respective jaws axially and radially displaceable in the guides are each formed with a row of teeth. A tightening ring axially fixed but rotatable about the axis on the body has a screwthread meshing with the teeth so that rotation of the ring displaces the jaws in their guides. An adjustment sleeve is rotatable about the chuck axis on the body. The body has rearward of the tightening ring an outer surface directed toward an inner surface of the adjustment sleeve. Mechanism inside the adjustment sleeve couples the adjustment sleeve to the tightening ring. A support washer has an inner periphery axially fixed to the outer body surface and an outer periphery axially fixed to the inner adjustment-sleeve surface.

Abstract: A chuck body is formed with angled guides holding respective jaws. A tightening ring rotatable about the axis on the chuck body has a screwthread meshing with toothed edges of the jaws so that rotation of the ring in one direction moves the jaws axially forward and radially together and opposite rotation moves the jaws axially rearward and radially apart. A spring washer is rotatable about the axis on the body between the tightening ring and the rear jaw faces. Rearwardly directed jaw faces axially rearwardly engage and press the washer toward the tightening ring and coupling formations on the washer and ring angularly lock the washer to the ring when the washer is pressed axially rearward by the faces. Stops on the washer can engage the jaws for permitting only limited relative angular movement of the washer and jaws when the faces are pressed axially rearward against the washer.

Abstract: An anti-slip type electric drill chuck mainly includes a body which is obliquely provided with three pawls for clamping a drill head. The outer surface of one end of the three pawls is provided with a threaded surface for engaging a tapered threaded hole in a bearing nut, which has an outer end with teeth, an end portion provided with a ball ring. A check nut protective sleeve encloses the ball ring and bearing nut, and has elastic pointed portions engage the teeth. A drive annular block engages the inner wall of the bearing nut. A front housing sleeve engages the drive annular block and surrounds the aforesaid components. The front housing sleeve is rotated by hand to advance or retract the pawls to thereby loosen or tighten drill head. When the pawls clamp the drill head, the check nut protective sleeve stabilizes the bearing nut to prevent slippage thereof.

Abstract: An anti-slip type electric drill chuck mainly includes a body which is obliquely provided with three pawls for clamping a drill head. The outer surface of one end of the three pawls is provided with a threaded surface for engaging a tapered threaded hole in a bearing nut, which has an outer end with teeth, an end portion provided with a ball ring. A check nut protective sleeve encloses the ball ring and bearing nut, and has elastic pointed portions engage the teeth. A drive annular block engages the inner wall of the bearing nut. A front housing sleeve engages the drive annular block and surrounds the aforesaid components. The front housing sleeve is rotated by hand to advance or retract the pawls to thereby loosen or tighten drill head. When the pawls clamp the drill head, the check nut protective sleeve stabilizes the bearing nut to prevent slippage thereof.

Abstract: A chuck for use with a manual or powered driver includes a generally cylindrical body having a nose section and a tail section. The tail section is adapted to rotate with the drive shaft. The nose section defines an axial bore with angular passageways for receipt of chuck jaws. The chuck includes a generally cylindrical sleeve in driving engagement with a nut mounted about the chuck body so that when the sleeve is rotated with respect to the body, the jaws will be moved thereby. The jaws are slidably positioned in the passageways and include a tool engaging face and threads on the opposite side thereof to engage threads on the nut. The body includes a thrust bearing ring received by the nut so that the thrust ring holds the nut against forward and rearward axial movement with respect to the body.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication with the jaws. The sleeve engages the body or the jaws by a first set of interengaged threads so that relative rotation between the first threads drives the jaws toward or away from the chuck axis. The sleeve engages the body or the jaws by a second set of interengaged threads so that relative rotation between the second threads drives the jaws toward or away from the chuck axis. The first thread set defines a first pitch so that when the jaws close, the first threads rotationally lock in the closing direction. The second thread set defines a second pitch that is higher than the first pitch so that when the jaws close, the second threads are relatively rotatable in the closing direction.

Abstract: A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting the axial bore. A plurality of jaws are slidably positioned in each passageway and each jaw defines a jaw face formed on one side and threads formed on the opposite side. A nut is disposed about the body for rotational movement with respect to the body and is in driving engagement with the jaw threads. A generally cylindrical front sleeve overlays the nose section of the body. A generally cylindrical nut retainer is disposed about the body and includes a frusto-conical portion.

Abstract: A chuck includes a driver disposed on a chuck body and in engagement with the jaws so that at least one of rotation and axial movement of the driver with respect to the body opens or closes the jaws. A first detent is disposed in the body in communication with the jaws. At least one of the jaws defines a catch at a predetermined position so that the catch engages the first detent when the jaws are at a predetermined position on the body with respect to a chuck bore.

Abstract: To provide a chuck device for avoiding loosening of the fastened condition, in which an annular ratchet tooth wheel is provided in a body, an annular nut member that engages with the claws and rotates together with the rotary sleeve is provided inside the rotary sleeve and behind the ratchet wheel within the body, a retainer spring member that is composed of a leaf spring made of metal and detached and attached for engaging the ratchet tooth wheel is disposed outside of the ratchet tooth wheel, the retainer spring member is provided under the condition the retainer spring member is rotated around the ratchet wheel in accordance with a rotation of a retainer spring receiving sleeve within the retainer spring receiving sleeve that rotates together with the nut member and that is fitted around the nut member and made of metal, the retainer spring member is mounted on the retainer spring receiving sleeve by a convex/concave engagement means, a holder spring member that is composed of a metal made leaf spring form

Abstract: A lockable drill chuck has a body centered on and rotatable about an axis and formed with a plurality of angled guides opening axially forward at a front chuck end, respective jaws axially and radially displaceable in the guides and each formed with a row of teeth, and a tightening ring axially fixed but rotatable about the axis on the body and having a screwthread meshing with the teeth so that rotation of the inner ring on the body in a tightening direction displaces the jaws in their guides toward one other and rotation in a loosening direction displaces the jaws away from one other. A one-piece outer sleeve rotatable about the axis on the body is formed unitarily with a pressed-in radially inwardly projecting cam formation.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft, and the nose section has an axial bore formed therein. The body defines an air passageway extending through the body between the axial bore and an area about the tail section. A generally cylindrically sleeve is disposed about the body and substantially encloses the area. It is configured to extend to a housing of the drill so that air from the fan is forced into the area, through the air passageway and into the axial bore.

Abstract: A hammer is provided which enables the orientation of a tool or bit mounted within a spindle of the hammer to be rotated to the required orientation. The hammer comprises a housing part having an aperture therein in which a spindle that is mounted so that the spindle extends out of the housing through the aperture. The spindle is capable of being rotated about its axis to any of a plurality of orientations, so as to alter the orientation of a tool or bit mounted therein. A locking ring is located around the spindle which locking ring can be moved axially along the spindle into and out of engagement with the housing part, so that when the locking ring engages the housing, it prevents the spindle from rotating with respect to the housing. A grip ring is located around the spindle and can be rotated about the axis of the spindle from a first position in which it prevents disengagement of the locking ring from the housing.

Abstract: A drill chuck has a chuck body centered on an axis and formed with a forwardly open seat and with a plurality of angled guides spaced angularly about the axis and open forward into the seat. Respective jaws slidable in the guides each have a toothed outer edge meshing with a screwthread of a tightening ring rotatable about the axis to axially and radially displace the jaws in the body. An adjustment sleeve rotationally coupled to the ring is rotatable about the axis on the body. It has an outer grip surface of a predetermined outer diameter and an indicia band axially offset from the grip surface and of an outer diameter smaller than the outer grip surface.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is adapted to rotate with the drive shaft, and the nose section has an axial bore formed therein. A driver is axially movably disposed about the body. A generally cylindrical sleeve is rotatably mounted about the body. A grip is mounted in the body in communication with the axial bore and in operative communication with the driver. The driver is in communication with the sleeve and the body so that, in a first state of the chuck, rotation of the sleeve with respect to the body in a closing direction moves the grip toward the axis of the axial bore and so that, in a second state of the chuck, the driver is axially reciprocal with respect to the sleeve and the body.

Abstract: 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.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft, and the nose section has an axial bore formed therein. A plurality of jaws are movably disposed with respect to said body toward and away from an axis of the axial bore. A generally cylindrical sleeve is mounted about the body forward of the body tail section and extends rearwardly toward and surrounds the body tail section. A disc is mounted about the body tail section and defines a plurality of radially outward extending flexible tips that engage the sleeve.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication with the jaws. The sleeve engages the body or the jaws by a first set of interengaged threads so that relative rotation between the first threads drives the jaws toward or away from the chuck axis. The sleeve engages the body or the jaws by a second set of interengaged threads so that relative rotation between the second threads drives the jaws toward or away from the chuck axis. The first thread set defines a first pitch so that when the jaws close, the first threads rotationally lock in the closing direction. The second thread set defines a second pitch that is higher than the first pitch so that when the jaws close, the second threads are relatively rotatable in the closing direction.

Abstract: A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body 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 and threads formed thereon. A nut is in operative communication with the drive shall so that the drive shaft rotationally drives the nut. The nut threads engage the jaw threads so that rotation of the nut moves the jaws axially within the passageways. A sleeve is selectively actuatable to a first axial position and a second axial position. The sleeve defines a first slot that receives a detent mechanism in the first axial position and a second slot that receives the detent mechanism in the second axial position.

Abstract: A chuck for use with a power driver includes a generally cylindrical body, a plurality of jaws and a driving disk axially moveably disposed about the body in driving engagement with the jaws so that axial movement of the driving disk with respect to the body moves the jaws toward or away from the chuck body axis. The driving disk defines a threaded outer circumferential surface that engages a threaded inner circumferential surface of a generally cylindrical sleeve so that relative rotation between the sleeve and driving disk axially moves the driving disk with respect to the body. The driving disk defines a plurality of cylindrical slots extending at least partially radially therethrough. Each jaw includes a portion thereof that is shaped cooperatively with respect to the cylindrical slot and that is received thereby so that the jaw is axially fixed, and radially slidable with respect to the driving disk.

Abstract: A chuck device includes a tube with a plurality of inclined holes defined therethrough and a plurality of clamping members are respectively inserted in the inclined holes. Each clamping member has teeth defined in an outside thereof. A nut is mounted to the tube and has threads defined in an inner periphery thereof so as to be engaged with the teeth of the clamping members. A groove is defined in the inner periphery of the nut and balls are received in the groove. A pressing ring is received in the nut and positions the balls. A sleeve is mounted to the nut and has protrusions on an inner periphery of the sleeve, the protrusions being engaged with notches defined in an outer periphery of the nut. When rotating the sleeve, the nut is rotated to move the clamping members.

Abstract: A chuck device includes a tube with a plurality of inclined holes defined therethrough and a plurality of clamping members are respectively inserted in the inclined holes. Each clamping member has teeth defined in an outside thereof. A nut is mounted to the tube and has threads defined in an inner periphery thereof so as to be engaged with the teeth of the clamping members. A groove is defined in the inner periphery of the nut and balls are received in the groove. A pressing ring is received in the nut and positions the balls. A sleeve is mounted to the nut and has protrusions on an inner periphery of the sleeve, the protrusions being engaged with notches defined in an outer periphery of the nut. When rotating the sleeve, the nut is rotated to move the clamping members.

Abstract: 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.

Abstract: A chuck includes a driver disposed on a chuck body and in engagement with the jaws so that at least one of rotation and axial movement of the driver with respect to the body opens or closes the jaws. A first detent is disposed in the body in communication with the jaws. At least one of the jaws defines a catch at a predetermined position so that the catch engages the first detent when the jaws are at a predetermined position on the body with respect to a chuck bore.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication with the jaws. The sleeve engages the body or the jaws by a first set of interengaged threads so that relative rotation between the first threads drives the jaws toward or away from the chuck axis. The sleeve engages the body or the jaws by a second set of interengaged threads so that relative rotation between the second threads drives the jaws toward or away from the chuck axis. The first thread set defines a first pitch so that when the jaws close, the first threads rotationally lock in the closing direction. The second thread set defines a second pitch that is higher than the first pitch so that when the jaws close, the second threads are relatively rotatable in the closing direction.

Abstract: A drill chuck has a chuck body rotatable about a chuck axis and formed centered on the axis with an axially forwardly open tool receiving hole, an array of axially extending guides opening axially forward into the hole, a rear axially forwardly directed shoulder and a front axially forwardly directed shoulder. Respective externally toothed jaws axially displaceable in the guides mesh with an internally threaded actuating ring rotatable on the chuck body about the axis to axially displace the jaws in the respective guides. An elastically deformable support washer bears axially forward on the actuating ring and has an inner periphery bearing axially backward on the rear chuck-body shoulder. The washer bears on the rear chuck-body shoulder over a radial distance equal to at most one-half its radial dimension such that the support ring projects at least halfway from the chuck body.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is adapted to rotate with the drive shaft, and the nose section has an axial bore formed therein. A driver is axially movably disposed about the body. A generally cylindrical sleeve is rotatably mounted about the body. A grip is mounted in the body in communication with the axial bore and in operative communication with the driver. The driver is in communication with the sleeve and the body so that, in a first state of the chuck, rotation of the sleeve with respect to the body in a closing direction moves the grip toward the axis of the axial bore and so that, in a second state of the chuck, the driver is axially reciprocal with respect to the sleeve and the body.

Abstract: A combination type electric drill chuck structure is mainly mounted on an electric drill. The chuck includes a drive body having head and tail ends, the middle thereof being provided with multiple inclined grooves for receiving multiple clamp pawls; a fixed shell secured fittingly at the tail end of the drive body; a sleeve threaded seat threadedly provided at head end of the drive body for engagement with the clamp pawls; a percussion ring provided with a spring for engaging the sleeve threaded seat in normal condition; a movable shell that utilizes an adjusting ring to adjust upper and lower positions. When the user turns the adjusting ring, the position of the movable shell can be adjusted to engage or disengage the sleeve threaded seat or fixed shell so as to achieve various operating modes of automatic percussion locking, manual locking and locking positioning of the drill bit.

Abstract: A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting the axial bore. A plurality of jaws are slidably positioned in each passageway and each jaw defines a jaw face formed on one side and threads formed on the opposite side. A nut is disposed about the body for rotational movement with respect to the body and is in driving engagement with the jaw threads. A generally cylindrical front sleeve overlays the nose section of the body. A generally cylindrical nut retainer is disposed about the body and includes a frusto-conical portion.

Abstract: A chuck includes a generally cylindrical body, a plurality of jaws and a driving disk. A bearing includes a first race, a second race and a plurality of bearing elements disposed between the first race and the second race. The first race defines a plurality of recesses therein. One of the second race and the bearing elements is disposed in communication with the first race so that, when the jaws close onto a tool and the first race and the second race rotate relative to each other, the one of the second race and the bearing elements engages successive recesses.

Abstract: A chuck includes a generally elongated body having a tail section configured to rotate with the drive shaft and a nose section having an axial bore formed therein. A plurality of jaws are movably disposed with respect to the body to and away from the axial bore. A collar in axially driving engagement with the jaws is axially movably disposed with respect to the body so that movement in a first axial direction drives the jaws toward the axis and movement in the opposite direction moves the jaws away from the axis. The collar is configured to receive at least one of the body and a shaft and defines a first surface that faces a second surface defined by the body or the shaft when the same is received by the collar. The first surface is tapered in the axial direction from a first end to a second end of the fist surface so that a first radial distance between the second surface and the first end is less than a second radial distance between the second surface and the second end.

Abstract: A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon insertion of an elongated tool shaft having a polygonal cross section into the bore so that a groove in the tool shaft is aligned with the first detent, the first detent engages the groove and axially retains the tool shaft. Upon movement of the jaws so that the jaw faces engage flat sides of the tool shaft, the jaws rotationally retain the tool shaft.

Abstract: A chuck includes a generally cylindrical body 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.

Abstract: A drill/driver chuck mechanism has a cylindrical member 2 with a central axial bore 4. A plurality of further bores 6 are slanted with respect to the central axial bore 4. Jaws 8 each associated with a bore 6 are moveable via a jaw actuator 10. A jaw locking means 32-60 is coupled to the jaw actuator 10. The jaw locking means may move between an open position and a closed position such that the jaws may be locked within their respective bore 6 regardless of the degree of protrusion of the jaws 8 into the central axial bore 4.

Abstract: A chuck includes a generally cylindrical body member having a forward section and a rearward section. The rearward section is configured to mate with a manual or powered driver. A plurality of angularly disposed passageways is formed in the forward section of the body and intersect an axial bore formed therein. The body defines a ledge portion about its outer circumference and a front face transverse to the longitudinal body axis. One of a plurality of jaws is slidably positioned in each passageway. A nut is rotatably mounted to the body rearward of the ledge portion so as to engage the jaws. A generally cylindrical sleeve engages the nut and includes a flexible protrusion extending axially rearward from an inner circumferential surface of the sleeve proximate the sleeve forward end. The protrusion has a tab portion disposed rearward of the ledge portion and projecting radially inward of the outer circumference of the ledge portion to prevent forward axial movement of the sleeve with respect to the body.

Abstract: A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting the axial bore. A plurality of jaws are slidably positioned in each passageway and each jaw defines a jaw face formed on one side and threads formed on the opposite side. A nut is disposed about the body for rotational movement with respect to the body and is in driving engagement with the jaw threads. A generally cylindrical front sleeve overlays the nose section of the body. A generally cylindrical nut retainer is disposed about the body and includes a frusto-conical portion.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. Each jaw includes a tool engaging surface facing, and generally parallel to the axis of, the axial bore. Each jaw includes a back surface opposite the tool engaging surface and a pair of planar side surfaces extending from the tool engaging surface toward the back surface. The side surfaces are disposed on either side of a plane that includes the axis. The side surfaces define an angle through the jaw between the side surfaces that is greater than 120°.

Abstract: A chuck assembly for use with a power driver having a forward end, a housing, a gearbox, and a rotating spindle extending therefrom includes a separate interface plate. The interface plate is received by and is rotationally fixed to the forward end and includes a forward face defining a center opening and a forward-facing rotational stop. The spindle extends through the center opening to receive a chuck. The chuck includes a body having a nose and a tail, the tail being configured to rotate with the spindle, and the nose including an axial bore. Chuck jaws are received by the body and movable toward and away from the chuck axis. A bracket is disposed about the body and extends rearward of the tail. The bracket defines a rearward surface engaging the stop to rotationally fix the bracket to the interface plate.

Abstract: A chuck for a manual or powered driver having a rotatable driveshaft includes a body having a front section and a rear section. A plurality of jaws are operatively associated with the body, and the jaws are adapted to engage a tool to be utilized by the driver. The body's rear section includes serrations extending outwardly therefrom. A sleeve member is pressed onto the serrations whereby the serrations dig into the sleeve to at least assist in rotationally securing the sleeve to the body.

Abstract: A drill chuck has a body having a front part and a rear part, and formed with a plurality of angled guides opening axially forward at the front part. Respective jaws axially and radially displaceable in the guides are each formed with a row of teeth engaging an internal thread of a one-piece and unsplit tightening ring axially fixed but rotatable about the axis on the chuck-body front part and having an inner diameter greater than an outer diameter of the chuck-body front part. Thus rotation of the tightening ring displaces the jaws in their guides. A one-piece and unsplit snap ring set in the chuck-body rear part bears axially forward on the tightening ring, is formed with an array of outwardly projecting teeth, and has an inner diameter greater than the outer diameter of the chuck-body front part. An adjustment sleeve rotatable about the axis on the body has a front end with a surface bearing directly on the chuck-body front part.

Abstract: A drill chuck has a body formed with an axially forwardly open tool-receiving recess and with a plurality of angled guides opening axially forward in the recess. Respective jaws axially and radially displaceable in the guides are each formed with a row of teeth. A tightening ring axially fixed but rotatable about the axis on the body has a screwthread meshing with the teeth so that rotation of the ring displaces the jaws in their guides. An adjustment sleeve is rotatable about the chuck axis on the body. The body has rearward of the tightening ring an outer surface directed toward an inner surface of the adjustment sleeve. Mechanism inside the adjustment sleeve couples the adjustment sleeve to the tightening ring. A support washer has an inner periphery axially fixed to the outer body surface and an outer periphery axially fixed to the inner adjustment-sleeve surface.

Abstract: A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting the axial bore. A plurality of jaws are slidably positioned in each passageway and each jaw defines a jaw face formed on one side and threads formed on the opposite side. A nut is disposed about the body for rotational movement with respect to the body and is in driving engagement with the jaw threads. A generally cylindrical front sleeve overlays the nose section of the body. A generally cylindrical nut retainer is disposed about the body and includes a frusto-conical portion.

Abstract: A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body 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 and threads formed thereon. A nut is in operative communication with the drive shall so that the drive shaft rotationally drives the nut. The nut threads engage the jaw threads so that rotation of the nut moves the jaws axially within the passageways. A sleeve is selectively actuatable to a first axial position and a second axial position. The sleeve defines a first slot that receives a detent mechanism in the first axial position and a second slot that receives the detent mechanism in the second axial position.