Abstract: A power tool includes a shaft locking assembly and an electric motor. The shaft locking assembly includes a first state where a chuck is restrained from rotating and a second state where the chuck is released to rotate. The shaft locking assembly includes multiple locking portions and an execution portion. The multiple locking portions are formed on or connected to a drive shaft or the chuck. The execution portion is optionally engaged with at least one locking portion. When the execution portion moves to a first position, the execution portion is engaged with the at least one locking portion such that the shaft locking assembly is in the first state. The electric motor includes a stop state where the first position is in the at least one locking portion when the electric motor stops.

Abstract: A rotary cutting tool with a shank and an interchangeable cutting tip, wherein the shank includes a pocket which receives the interchangeable cutting tip via an interference fit. The pocket includes two centering wall portions which, when viewed along a central longitudinal axis, are oriented at a first angle with respect to one another, the first angle being greater than zero. The interchangeable cutting tip is axially displaceable between: an initial position, assumed upon being received in the pocket of the shank; a clamped position, wherein the interchangeable cutting tip is fixedly held with respect to the shank; and a bump-off position, wherein the interchangeable cutting tip is not fixedly held. A holding element holds the interchangeable cutting tip in the clamped position, and a spring assembly which displaces the interchangeable cutting tip between the clamped position and the bump-off position. Other variants and embodiments are broadly contemplated herein.

Abstract: A tool for removing a stud includes a housing, a cage and a canted coil spring. The housing has an interior sidewall with a three-lobed cam and a groove. Each lobe has a counterclockwise cam inner surface and a clockwise cam inner surface on the opposite side of the lobe center line. The cage has a top surface, a tapered terminus and a groove disposed between the top surface and the tapered terminus. The cage includes jaws, in which the jaw outer cam surface of each jaw interfaces with the cam inner surface of the interior sidewall. The canted coil spring rotatably couples the cage to the housing. During stud removal, the housing rotates counterclockwise relative to the cage and the cage rotates counterclockwise to engage the stud.

Abstract: The invention relates to a clamping device for removably mounting a tool (3) or a tool fixture in a receiving part (1). Said clamping device comprises several pincers elements (33) which are concentrically arranged around a central axis (32) within the receiving part (1) and are impinged upon by a tension spring (39) so as to be moved into a clamping position in order to brace the tool (3) or the tool fixture. In order to be able to automatically replace a tool without using much force and energy, an axially movable closing element (17) is assigned to the pincers elements (33). Said closing element (17) impinges the pincers elements (33) in a forward position that is advanced in the direction of the pincers elements (33) for mounting purposes in the clamping position thereof, which is swiveled inward by means of the tension spring (39), while being movable into a retracted position with the aid of a detaching device (12, 16, 45, 46, 47) in order to release the pincers elements (3).

Abstract: A preferred embodiment of the invention comprises a tool chuck for a power hand tool of the type which has a generally cylindrical elongated housing with a motor contained within the housing or case and the motor having an output shaft that extends from the nose end of the hand tool, and which has one or more light producing devices located at its nose end for illuminating the work area during operation. The preferred embodiment of the tool chuck has an annular cylindrical light transmitting portion on the outside of the chuck body portion for transmitting light toward a tool bit held by the tool chuck. The preferred embodiment may have an inwardly oriented front end surface to direct the transmitted light toward the axis of the tool bit and may have an outer layer of resilient material to facilitate easy gripping of the tool chuck to tighten or loosen a tool bit.

Abstract: Collet chucks (20) comprise at least two tensioning segments (21). Adjacent tensioning segments are connected to each other by means of elastic spacer elements (30). The tensioning segments (21) have back-cuts (22), whilst the spacer elements have correspondingly formed sections (36). A positive fit of the formed sections in the back-cuts of the tensioning segments (21) is thus possible.

Abstract: A circumferential bead for preventing pin rollover is disposed on a retainer insert mounted in the shell of a stud gripper socket and spaced from the inner surface of the shell. The shell has at least one cam surface on its inner surface and there are roller pins disposed for rolling motion on each cam surface between the cam surface and the retainer insert.

Abstract: A collet for gripping an associated cylindrical workpiece comprises a pair of actuating rings and a plurality of slide blocks. The slide blocks are held within a housing and feature a pair of opposed slots within each slide block. The slots are oriented at a 45.degree. angle to a radial centerline of the slide blocks. Each one of the slots slidably receives one of the actuating rings therein. Axial movement by an actuating ring causes radial movement of the slide block inwardly toward the workpiece to grip it, or outwardly away from the workpiece to release it.

Abstract: A pipe holding collet is provided with an insert assembly that can be readily and quickly changed without the use of tools so as to adapt the collet to hold tubes of different sizes. The insert assembly is formed of a number of identical longitudinally separate segments, radially urged outwardly by compression springs and held together in a unitary assembly by a segment encircling retainer ring. The radially contractible and expandable assembly is releasably held within the bore of a master collet by means of an interengaging circumferential groove on the inner surfaces of the master collet fingers and circumferential ribs on the outer surfaces of the insert segments.

Abstract: A cam lock socket has a plurality of pins having substantially oval-shaped cross-sections. The pins are received in complementary axially-extending circumferentially-spaced scalloped recesses formed in the socket body. When the socket is rotated in one direction or another, the pins are cammed out of their respective recesses to tighten on a nut (or the head of a bolt or stud). Means are provided for retaining the pins axially and radially in the socket body, and to preclude the pins from tilting about their respective longitudinal axes.In one embodiment, outwardly-extending fins on the pins are received in an internal annular groove formed in the socket body, and a resilient retaining ring is received in slots formed on the inside of pins. In another embodiment, a flanged bushing is mounted in the bore of the socket body and cooperates with inwardly-extending fins on the pins. The flange on the bushing carries a resilient O-ring which bears against the respective pins.

Abstract: A pin assembly for removably attaching a jaw portion of a translatable jaw of a stretch jaw chuck through an elongated slotted opening in the chuck wall. A bushing is threaded into mating threads in a bore in the jaw portion. The bushing has a centrally positioned substantially rectangular shaped opening extending therethrough with a slot formed on the bottom exterior surface of the bushing adjacent to each elongated side of the rectangular opening therethrough. An attachment pin is provided with a first end configured to pass through the opening in the bushing and latch into the aligned slots on the outer surface. The pin has a coil spring confined between a pair of flat washers. The first washer adjacent the second end of the pin rides against a nut adjustable along a threaded portion of the pin.

Abstract: Stepped roller pins roll within stepped lobes formed around the interior wall of a hollow cylindrical casing. A hollow cylindrical retainer or simple ring retainer hook into a recessed groove around the middle of the roller and interact with ridges or grooves in the casing to retain the rollers within the lobes. The retainer fits within the limits of movement of a larger diameter section of the roller so that maximum contact is made between the rollers and a smooth stud shaft which is encircled by the casing to any desired extent. The rollers move along the lobes until they lock tight to grip the stud shaft for threading or unthreading. The casing is provided with wrench gripping faces around the exterior. A wrench grips the casing from the side to operate it leaving both ends of the casing open to admit the stud shaft.

Abstract: A machine tool collet having a generally cylindrical body with a longitudinal axis. The collet is divided into a plurality of segments each having front and rear surfaces and endfaces with recesses. The recesses hold biasing springs which force each segment away from the adjacent segment.

Abstract: A chuck having a plurality of elastic and resilient compressible segments which have the general shape of a strip which, in longitudinal section, have a zig-zag configuration with flattened tops and bottoms, with upper and lower recesses which are filled with an elastomeric material.

Abstract: A collet is composed of a number of segments each separated from an adjacent segment by means of a resilient plate-like separator which is connected to the two adjacent segments. The opposed faces of the separator contact opposed radial side surfaces of the adjacent segments and in order to increase the resilience of the segments, and thus to decrease the force required to close the collet, the faces of the separators are ribbed in a grid-like pattern. The separators permit the internal diameter of the collet to be varied to suit a range of workpiece diameters, while maintaining a parallel grip.

Abstract: A collet, comprising a clamping head having a front side, having interior gripping surfaces in a longitudinal zone of the clamping head for gripping a workpiece, and having an exterior surface in the form of a frustum located at least partially in the same longitudinal zone as the gripping surfaces and diverging toward the front side of the clamping head, the clamping head being divided into individual gripping jaws, at least in the longitudinal zone of the gripping surfaces, by radially- and axially-extending longitudinal slits circumferentially distributed about the clamping head. The collet includes a clamping tube separately couplable with the clamping head and having means on an end of the clamping tube facing away from the clamping head for fastening the clamping tube to an apparatus for use. Elastic members are provided in the longitudinal slits between the gripping jaws of the clamping head.

Abstract: A collet assembly comprising a spring body member having a cylindrical rear portion and a plurality of spring fingers extending axially therefrom, with an annular bead on the external periphery of the spring fingers near the distal end thereof. Work gripping pads for gripping the exterior of the workpiece are mounted on each of the fingers, and the pads have a groove on the interior thereof for mounting the pads on the beads on the spring fingers. The pads have an exterior surface which forms a frusto-conical cam surface for cooperative engagement with an actuator sleeve, and the pads are free to rock slightly axially on the beads when the collet is opened or closed.Also disclosed are the spring body and the pads for use therewith.