Abstract: A tool bit connectable to a tool. The tool bit including a tool body having a working end portion, an insertion end portion, and an outer surface formed on the insertion end portion. The insertion end portion defines an end of the tool body and configured to be coupled to the tool. The tool bit also includes a non-circular profile formed on the tool body and partially defining the outer surface, and an alignment region positioned between the non-circular profile and the end of the tool body. The alignment region partially defines the outer surface to facilitate alignment of the non-circular profile with the tool.

Abstract: A surgical instrument system comprising a handle and a shaft assembly is disclosed. The shaft assembly comprises an end effector, a release actuator, and a latch. The release actuator comprises a lock engaged with the handle when the release actuator is in a proximal position and disengaged from the handle when the release actuator is in a distal position. The latch is operably engaged with the release actuator and movable between a first position and a second position. The release actuator is configured to rotate the latch from the first position to the second position when the release actuator is moved toward the distal position. The latch comprises a catch configured to engage the handle when the latch is moved toward the second position. The catch is disengaged from the handle upon an additional manipulation of the release actuator. The additional manipulation is in a proximal direction.

Abstract: The present application discloses a quick-action coupling (100) for a rotary surgical tool having a rotary shaft (20), in the distal end surface of which there is formed a tool receptacle (24) which is adapted to receive a rotary surgical tool for conjoint rotation. The rotary shaft (20) has, in the region of its distal end (21), at least one radial protrusion (22) and at least one radial aperture, wherein a locking body is arranged in the at least one aperture, said locking body being movable in the radial direction with respect to the rotary shaft (20). A sleeve (10), the proximal end of which is pushable over the distal end (21) of the rotary shaft (20), is additionally provided in the quick-action coupling.

Abstract: An assembly comprises a corner block piece and a locating plate. The corner block piece has a node receiving cavity which includes an aperture configured to receive a locking pin. The locating plate includes at least one locking node. The locking node includes a spring-loaded locking pin configured to engage the aperture when the locking node is inserted in the node receiving cavity. The assembly facilitates construction of a portable staging system involving a platform, at least two support legs, and bracing.

Abstract: The present application discloses a quick-action coupling (100) for a rotary surgical tool having a rotary shaft (20), in the distal end surface of which there is formed a tool receptacle (24) which is adapted to receive a rotary surgical tool for conjoint rotation. The rotary shaft (20) has, in the region of its distal end (21), at least one radial protrusion (22) and at least one radial aperture, wherein a locking body is arranged in the at least one aperture, said locking body being movable in the radial direction with respect to the rotary shaft (20). A sleeve (10), the proximal end of which is pushable over the distal end (21) of the rotary shaft (20), is additionally provided in the quick-action coupling.

Abstract: A surgical apparatus having a locking mechanism that receives a cutting burr and that may include a loading and running position. The locking mechanism may include a motor driven spindle that carries a locking pawl and a detent pawl that lock the cutting burr in place an prevent the cutting burr from inadvertently falling out of the surgical drill instrument when in its load position. A diamond-shaped portion of the cutting burr may be formed in a six-sided diamond configuration and a perpendicular back end surface. The end of the cutting burr may include another diamond-shaped portion formed in a six-sided diamond shape surface that mates with a complementary surface formed in the receiving end of the spindle of the motor/locking mechanism. In an aspect, the attachment of the cutting burr is such that the cutting burr has substantially zero axial movement and runs true in the running condition.

Abstract: A hand tool with bit release device includes a connecting shaft, a block, a positioning bead and a cover. When the user wants to insert a tool bit into the connecting shaft, the user pushes the tool bit into the connecting shaft directly and the positioning bead engages with the tool bit firmly. When the user wants to release the tool bit from the connecting shaft, the user moves the cover axially relative to the connecting shaft and the positioning bead disengages with the tool bit so that the tool bit is released from the connecting shaft.

Abstract: A cutting tool has a cutting insert and a holder. The cutting insert has a cutting portion and an insert shank with a cylindrical portion and a non-cylindrical portion. The holder has a clamping portion which has a clamping sleeve and a cage located therein. The cage includes a load member housing with a load member. The cage has a major abutment wall adjacent to a minor abutment wall. The clamping sleeve has first and second inner sections defined by points P1 and P2. A point P3 divides the second inner section into first and second portions. The clamping sleeve is rotatable between a secured and a released position of the cutting tool. In the secured position, the non-cylindrical portion abuts the major abutment wall, the cylindrical portion abuts both the minor abutment wall and the load member, and the load member abuts the first portion.

Abstract: The invention relates to a clamping device (8) for connecting a saw blade (12) to a reciprocating rod (6) of a jig saw, in particular a hand-operated compass saw (2), comprising a mounting (20), which is connected to the reciprocating rod (6) and has a recess (22) for receiving a head end (10) of the saw blade (12), a locking sleeve (30), which can be turned about the axis (40) with respect to the mounting (20) against the force of a torsion spring (60) to lock the head end (10) of the saw blade (12) in a locking position in the recess (22) and to allow removal of the saw blade (12) in a removal position. It is intended that a stop (78) interacts with a part (80) of the torsion spring (60), in order to prevent movement of the locking sleeve (30) beyond the removal position.

Abstract: Devices are described relating to the retaining of surgical tools within the chuck of a reciprocating surgical instrument, such as a reciprocating saw. A securing chuck is disclosed for securing a surgical tool to a reciprocating surgical instrument that comprises a shaft and a securing member. The shaft defines an axis and has a cylindrical bore extending along the axis. The bore is shaped to receive a substantially rounded tool shank. A pair of transverse slots extends into the shaft along a plane passing through the axis for receiving a substantially flattened tool shank. The transverse slots intersect with the cylindrical bore. The securing member is carried by the shaft and is radially movable relative to the bore both inwardly and outwardly to secure the surgical tool in the chuck.

Abstract: Embodiments are disclosed for a tool-less clamping apparatus for a reciprocating tool having a reciprocating spindle having a center axis and at least one radially oriented aperture and a receiving slot at its forward end for receiving a tool accessory, the apparatus having an unclamped position and a clamped position, and comprising a hollow generally cylindrical sleeve secured to the spindle, a hollow generally cylindrical collar configured to fit on the sleeve and being rotatable relative to the spindle and the sleeve, the collar having an inner cam surface that increases in radius from the axis through a first predetermined circumferential arc in a first direction, a spring operatively connected to provide a biasing force to the collar toward its clamped position, and a detent pin positioned in the spindle aperture and configured to engage a hole in the tool accessory and thereby firmly hold the tool accessory in the apparatus when urged into contact with the tool accessory.

Abstract: A tool with a replaceable tip includes a tool body including a tip holding portion, a tool tip having a shank portion adapted to be disposed proximate the tip holding portion comprising a wall defining an axial opening, the wall having at least one radial opening, at least one locking element being disposed in the radial opening, and, as a clamping ring is turned about the longitudinal axis of the tool body, a locking element contacting surface of the clamping ring contacts the locking element and urges it through the radial opening and into the recess in the tool tip. A method of retaining a tool tip is also disclosed.

Abstract: A hand power tool selected from the group consisting of a drill hammer and an impact hammer has an exchangeable tool holder, a guide pipe which receives the tool holder at its free end, a locking device arranged on the guide pipe and operative manually for fixing the tool holder on the guide pipe in a defined locking position assumed by the tool holder on the guide pipe, so that the locking position is arranged before a mounting position in a displacement direction of the tool holder, in which mounting position the tool holder is held unlocked on the guide pipe, the locking device being provided with means activatable by a release of the locking device and providing a displacement of the tool holder to the mounting position.

Abstract: Blade clamps (26, 110) may reliably secure blades (22) to reciprocating power tools (10). The power tools may include a reciprocating drive shaft (24) partially extending from the tool housing (12). A first end of a rod (37, 112) may be attached to the drive shaft. A second end of the rod may include a blade slot (37a, 112a) defined to receive the blade so that the longitudinal axis of the blade aligns with a longitudinal, reciprocating axis of the drive shaft. An aperture (37b) may be defined substantially perpendicular to the first blade slot and may communicate with the blade slot. A sleeve (33, 115) may be rotatably mounted on the rod so as to pivot between an initial locking position and a blade replacement position. A cam surface (33c, 116) is defined on an inner surface of the sleeve. A stopper (33e, 116d) projects from the cam surface or the rod and defines the blade replacement position.

Abstract: An arrangement for transmitting a torque from a power tool to a working tool and including a shank forming part of the working tool and having following one another, in the operational direction of the working tool, first, second, third, and fourth regions (B1, B2, B3, B4), at least two drive grooves (3) extending parallel to a working tool axis over all of the shank regions (B1, B2, B3, B4), and at least one additional drive groove (4) extending in third and fourth regions (B3, B4) of the shank (2), with the arrangement further including a chuck (10) having an opening (13) for receiving the shank (2), at least one locking element (21) projecting into the receiving groove (13) for engagement into the circumferential groove (5) of the shank (2), at least two drive dogs (16) and an additional drive dog projecting into the receiving groove (13) for engagement in the first drive grooves (3) and the at least one additional drive groove (4).

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 locking system with at least one locking element has a sleeve (2) with an inner groove (3) and an outer groove (4), which lie in a common plane and encircle at least one half of the circumference, the outer groove (4) accommodating a radially pre-stressed spring washer (9) forming an open sector in the circumferential direction between the legs (12) on either side, which are pointedly bent towards the inside and extend through assigned radial openings (5) of the sleeve (2) into the inner groove (3).

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 body 52 of a chuck 30 has an axial opening 34 and is formed with three spaced radial slots 58 which receive three respective locking fingers 68 extending radially inward from a circular band 66. The band 66 is located outside of, and rotatable relative to, the body 52. The band 66 and the locking fingers 68 form a latching unit 64 which is confined to a transaxial plane 61. A spring 70 is attached the latching unit 64 and to the body 52 and normally urges each of the locking fingers 68 against one end of the respective slots 58. A plurality of spaced ribs 54 extend radially inward from an inner wall of the opening 34. A bit 36 is formed with a shank 38 having a plurality of axial grooves 42 which extend through a free end of the shank. A wall of each groove 42 is formed with a transaxial groove 50 at a prescribed distance from the free end of the shank 38.

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: The hand-held machine tool has a tool holder (20) provided with a receptacle (19) into which a shaft portion (15) of a tool (16) is axially insertable. The tool holder (20) has a longitudinal axis (11) and includes a guide device (18) for axially guiding the tool (16); a device (23) for rotary slaving of the tool (16); a retaining device (28) for axially securing the tool (16) and a locking member (34) for locking the retaining device (28) in an open configuration for insertion or removal of the tool (16). The retaining device (28) is located in front of the guide device in an insertion direction of the tool (16) in the tool holder (16). The retaining device (28) is provided with an opening (31) for passage of the tool (16) through it.

Abstract: A tool bit chuck for drilling and chiseling bits has an axially extending receiving sleeve (1) with an opening (3) therethrough in which latching elements (9) are radially displaceably supported. The latching elements (9) are radially displaceable by a spring loaded axially displaceable actuating element (10). An actuating sleeve (12) laterally encloses and is axially displaceable relative to the receiving sleeve (1). Connecting members fix (6, 13) the actuating sleeve to the receiving sleeve. The actuating sleeve (12) has a stop (14) cooperating with the actuating element (10) for applying an axial force to the actuating element for assisting in centering the drilling or chiseling bit.

Abstract: An adjustable limb support system is provided for an operating room table to adjustably orient and position a stirrup or boot. The support system provides an adjustable support in combination with a vertically adjustable support. The vertically adjustable support includes a support arm, a ratchet wheel, a lock pin, and a ratchet release. The support arm is connected to a housing which both rotate about the ratchet wheel in a rotational plane extending upwardly and outwardly from the operating room table for automatic abduction. The lock pin engages the ratchet wheel and allows the support arm to be rotated upwardly but not downwardly. The ratchet release disengages the lock pin and allows the support to be rotated downwardly. The support arm can thus ratchet upwardly to fixed vertical positions and be lowered only by disengaging the lock pin. The adjustable support includes a retaining block, a compression block, and a compression head.

Abstract: In a hand-held tool, such as a power drill, a hammer drill, a powered screwdriver or the like, a chuck is secured on one end of an axially extending rotary spindle by ball-shaped locking members. The chuck has a driver socket which fits on one end of the rotary spindle. The locking members are located within openings in the driver socket and are displaced radially inwardly into recesses in the spindle by a support ring encircling the driver socket. Recesses in the spindle, in which the locking members are held, have a first surface extending transversely of the axial direction of the spindle with the first surface forming a pair of run-up ramp surfaces, each inclined to the axis of the spindle and relative to one another. Due to the rotation of the spindle, the locking members move along one of the run-up ramp surfaces within each recess and develop a force component in the axial direction of the spindle, pressing abutment surfaces of the spindle and the driver socket into contact with one another.

Abstract: A quick-connect and quick-disconnect mechanism includes a male member which may be received in a female socket member. Cam means is journaled in an eccentric cam follower surface in the socket and is capable of rotation about a second axis displaced from the axis of the socket. A locking surface on the cam means faces in a longitudinal direction opposite the entrance of the socket and opposite that of a lockable abutment surface on the male member. An aperture in the cam means is sufficiently large to accommodate the entrance of the lockable abutment surface on the male member. The cam means is rotatable within the cam follower surface to move the cam locking surface with a radially inward component and a component of movement in a longitudinal direction away from the entrance of the socket to engage the lockable abutment surface to lock the male member in the socket. The cam means may also have an expelling surface to aid in expelling the male member from the socket.

Abstract: A force multiplying and locking arrangement is disclosed to lock, for example, a cutting tool to a spindle. It comprises main body arranged to be threadably mounted on a spindle, said main body having a pressure ring at its forward aspect mounted to accommodate movement longitudinally of the arrangement and to inhibit movement rotationally of the arrangement. A cavity is defined by said pressure ring and said main body and includes an inclined plane. The cavity has a plurality of spherical balls disposed therein. Said main body is peripherally threaded to accommodate the threadable mounting of a compression ring having, at its forward aspect, a conical inclined plane overlying the cavity and the first mentioned inclined plane. Rotation of the compression ring forces the spherical balls into the cavity engaging the inclined planes and the pressure ring and greatly multiplying the force for locking the device. Reverse rotation of the compression ring releases the locking force.

Abstract: The invention relates to a combination of a tool holder having a socket member with a cylindrical axial bore, and a tool shaft releasably received therein. A driving element is displaceably mounted in the socket member so as to be movable between an extended position in which part of the driving member extends into the axial bore, and a retracted position in which the driving member is retracted from the bore, and the driving element is biased towards its extended position by spring means. The tool shaft received in the tool holder has a transversely extending recess receiving the driving element in its extended position, whereby the tool shaft is locked in the tool holder. Adjacent to the free end of the tool shaft the said recess defines an abutment surface cooperating with an inner surface part of the driving element in its extended position so as to prevent axial withdrawal of the tool shaft from the axial bore of the socket member.