Abstract: An internal adapter for use in torque-limiting handles for interchangeable orthopedic tools contains a slidable collar component, house component, retaining ring, spring, driver component, cover and cam which engages a torque-limiting mechanism. A plurality of securing ball mechanisms releasably secure an orthopedic tool in the adapter, while a configuration of chamfered surfaces centrally stabilize the tool. A plurality of guiding chamfers located in a driver component rotationally secures the orthopedic tool.

Abstract: A connecting rod assembly is capable of pushing the work head outward to allow more of the part of the work head to be exposed out of the connecting rod assembly, making it easier for the user to pull out the work head, thus solving the problem that it is difficult to pull the work head out of the conventional connecting rod structure since the conventional connecting rod structure doesn't have any function or devices to move the work head outwards.

Abstract: A small outer diameter quick release extension rod is provided with elongated sheet-shaped elastic elements therein for realizing the effect of engaging with a screwdriver head. A second positioning ring in the operating element is used to press against the elastic elements to control them to be engaged in or disengaged from the screwdriver head. The small outer diameter quick release extension rod is easy to operate and has a relatively small outer diameter, not only reducing the structure weight and energy loss, but also enhancing the flexibility of use.

Abstract: A screwdriver includes a grip defining an accommodation chamber, an inner tube with interference holes mounted in the accommodation chamber, a rod member movable in and out of the inner tube and having interference grooves corresponding to the interference holes and a neck and carrying a latching member, an operating device set, which includes an operating member rotatably mounted at the front side of the grip, interference members and an actuation member having a pressure wall for holding down the interference members, a first elastic member, a ring cap having an axial hole and a stop wall around the axial hole for stopping the latching member, and a second elastic member. Thus, the screwdriver is operable by rotating the operating member and effectively prevents the rod member from being ejected out of the grip.

Abstract: A bit retention device includes a shaft having a sidewall defining a hexagonal cavity extending from a first end thereof and a ball groove extending through the sidewall and communicating with the hexagonal cavity. A ball is disposed in the ball groove and a ball spring engages the ball and biases the ball toward the first end. An actuator sleeve surrounding the shaft includes an internal ramp engaging the ball. The internal ramp includes a shallow ramp portion having a first angle of inclination with respect to a center axis and a steep ramp portion having a second angle of inclination with respect to said center axis of said shaft that is greater than the first angle of inclination. A spring biased plunger assembly is disposed in the bore for biasing a bit received in the bore in a direction toward the insertion end.

Abstract: A connection connecting two tool parts includes a first tool part and a receptacle for receiving a second tool part. A clamping device clamps the tool parts together in a joined state. The connecting point further includes a retaining device that is independent of the clamping device and holds the tool parts together in the joined state.

Abstract: A coupling device for securing medical instruments to a holding device allows for simple and rapid handling and exact positioning of the medical instrument. A coupler socket is configured on one component and a coupler plug is configured on the other component, wherein the coupler socket and coupler plug can be fixed in mutually connected position with respect to one another by means of at least one locking element. The coupler socket is configured as a sleeve-shaped collet chuck including several mutually distanced spring arms. The coupler plug includes a coupling pin equipped with at least one radially outward-pointing catch cam. When coupled, at least one catch cam of the coupling pin catches on a corresponding back-cut on the collet chuck. The locking element can be screwed onto the collet chuck so that the spring arms of the collet chuck in the coupled position are affixed facing radially outward.

Abstract: A locking tool or device that permits rapid installation and removal of a removable component from a component that is fixed to a housing or equipment. The interchangeable, and hence removable, components may be held in place by individual holders that provide secure axial locking means and quick radial removal means requiring no axial space for the removal of such components from the main base tool.

Abstract: A hand tool includes handle, a connector mounted on the handle and having an inner wall provided with a mounting hole and a peripheral wall provided with a plurality of positioning holes, a drive member mounted on the connector and having a first end provided with a fixing portion which is detachably mounted in the mounting hole of the connector and has a peripheral wall provided with a fixing groove, a plurality of locking balls movably mounted in the positioning holes of the connector and movable into the fixing groove of the drive member to lock the drive member onto the connector, and a control sleeve movably mounted on the connector and movable to press or release the locking balls. Thus, the drive member can be detached from the connector to facilitate a user replace the drive member.

Abstract: A tube holder for a tube filling machine includes a cup-shaped housing having a tube receptacle that opens towards the top and into which one end area of a tube can be inserted. At least one vertical groove is formed in the area of the inner wall of the tube receptacle into which a clamping element is inserted, wherein the clamping element can be radially displaced substantially perpendicularly to the longitudinal central axis of the tube receptacle and is pivotably disposed about a pivot axis that extends substantially tangentially relative to the inner wall of the tube receptacle. A clamping force that acts radially from the outside onto the inserted tube can be applied by the clamping element under the action of upper and lower spring elements. The pivot axis is thereby formed on a pivot bearing which permits radial displacement of the pivot axis.

Abstract: A safe and quick release device for a tool adapter includes a main body and a combination head. The main body has its front end axially bored with a combination groove with an open end. The combination groove has its opposite sides respectively bored with at least one position-limiting hole having its opposite ends respectively and annularly formed with a first position-limiting portion and a second position-limiting portion. A spherical position-limiting member is slidably disposed in the position-limiting hole and restrictedly positioned therein by the first and the second position-limiting portion. Thus, the position-limiting member is ready made, needless to be especially processed, can easily be in stalled for facilitating assembly and disassembly of the combination head, reducing processing cost.

Abstract: A coupling device includes a body having an end for coupling with a handle. The body includes a compartment having a receiving space for receiving an object such as a bit. The receiving space includes a slanted face extending longitudinally outward and radially inward. A follower is slidably mounted in the compartment and includes an outer end having a restraining hole. A positioning member extends from a radially outer side through the restraining hole to a radially inner side of the follower and is slidable along the slanted face. The follower is biased outward by an elastic element toward the receiving space when the object is inserted into the receiving space and moves the follower longitudinally inward. A radial clamping force is imparted from the slanted face through the positioning member to securely clamp the object in the receiving space.

Abstract: A medical instrument has an instrument insert (4) and an instrument handle (2) which are detachably connected to one another via a locking connection. A grip (24; 57) and a closure (26; 50) are provided for securing the locking connection. The closure (26; 50) may be moved into an unsecured position by movement of the grip (24; 57) as well as independently of a movement of the grip (24; 57).

Abstract: A screwdriver bit holder structure, whose holder body has a polygon hole, and inside the polygon hole set an inner spring and a sliding tube. The holder body is clipped by a c-clamp, ahead of which are symmetric front balls and holes, and behind which are symmetric middle and back balls and holes. A fixing cap is capped on the holder body. In the back of inner hole of the fixing cap sets a limiting ring, and in the front sets a front recess and a back recess that is designed, by sliding the cap forward and backward along the holder body, to push front balls to fit into the fitting concaves of the bits so as to fix them tightly with the holder body or loose front balls from fitting concaves to release the bits.

Abstract: A universal tool shank can include an elongate body having first and second portions. The first portion can include at least one flat thereon for engagement with a recess in a first tool. The second portion can include at least one protrusion extending radially outwardly therefrom for engagement with a recess in a second tool. The first and second portions can be disposed axially apart from one another.

Abstract: An extremely useful rotating tool is provided that can prevent rattling caused by a clearance between a machine tool and a machine tool retaining hole while bringing the axial center position of the machine tool and the axial center position of the machine tool retaining hole as close together as possible. The present invention is a rotating tool having a rotating main shaft (4), and the rotating main shaft (4) is provided with a machine tool retaining hole (3) having a cross-sectional shape that substantially matches a base part (2) of a driver bit, drill bit, or other machine tool (1) having a polygonal cross-sectional shape that is inserted into the machine tool retaining hole (3), wherein the rotating tool rotates the machine tool (1) inserted in the machine tool retaining hole (3) by rotating the rotating main shaft (4) and performs work.

Abstract: A universal tool shank can include an elongate body having first and second portions. The first portion can include at least one flat thereon for engagement with a recess in a first tool. The second portion can include at least one protrusion extending radially outwardly therefrom for engagement with a recess in a second tool. The first and second portions can be disposed axially apart from one another.

Abstract: Screwing tool (1) having a grip (2) and a shank (3), which is received removably in a cavity (4) open toward an end of the grip (2) and which at its free end has an actuating portion (5). The shank (3) is retained in a position of use such that it is fixed in terms of rotation on the grip, to avoid sliding in the axial direction, by a retaining element (14) associated with the grip (2). The retaining element (14) can be displaced into a removal position by displacement of an actuating member (6) in order for the shank to be removed from the grip (2). In a storage position, a large part of the shank (3) is located in the cavity (4), where it is held by a holding element (H). The holding element (H) is releasable, so that part of the shank (3) can be moved out.

Abstract: A chuck (1) for tools, especially screwdriver bits with a polygonal section (2), has a polygonal cavity (3) for the insertion of the polygonal section (2). A wall (4) of the polygonal cavity (3) has a window (5) in which is disposed a pressure-piece (6) which can be displaced in the insertion direction (E) and which, in order to secure the inserted polygonal section (2) against being drawn out, is forced against the polygonal section (2), in a direction transverse to the insertion direction (E), by a sloping inner wall (9) of an actuating element. The actuating element is outside the window and is retained in a clamping position by a restoring spring (10), and, in a release position of the actuating element (7), moves aside out of the polygonal cavity (3) in order for the polygonal section (2) to be drawn out.

Abstract: An adapter for prompt engagement a shank of screw driver with a handle includes a tubular adapter connected with a handle, a polygonal central bore having a reduced bottom, a concaved front outer periphery to define a shoulder thereunder, a plurality of conical through holes around a middle peripheral wall for respectively disposing a plurality of steel balls, a conical spring disposed into the central bore having a large thick upper portion blocking the conical through holes and a small incompact lower portion fixed in the reduced bottom, an annular sleeve with an annular convex on middle inner periphery slidably wrapped on the adapter biased by a circular spring on the shoulder, an annular cap fixed on the top of the adapter with a circular ring engaged therebetween, a receiving space for receiving the steel balls and a polygonal shank of in the bore is held by the steel balls.

Abstract: A blade attachment/detachment mechanism for detachably attaching a blade to a saber saw. An end portion of the blade is formed with a blade hole. A reciprocally movable plunger has a blade attachment end portion where a slit and a stepped hole are formed. The slit extends in a longitudinal direction of the blade, and the stepped hole extends in a direction perpendicular to the slit and intersects the slit. An engagement pin is provided in the stepped hole. The engagement pin is engageable with the blade hole to fix the blade to the plunger when the blade end is inserted into the slit. For moving the engagement pin, a knob is pivotally supported to the blade attachment end portion, and a torsion spring is provided to bias the knob in a blade attaching direction. The knob has a slanted surface in engagement with the engagement pin.

Abstract: An insertable tool connector includes a drive body, a bushing, a locking plate, a restoring spring, a positioning ring, and a push ring. Thus, the insertable tool connector that can be used to connect the tools of different types, such as the saw blade, the screwdriver head or the like, thereby enhancing the versatility of the insertable tool connector. In addition, the tool can be mounted on and detached from the drive body of the insertable tool connector rapidly, thereby facilitating the user operating the insertable tool connector.

Abstract: A chuck includes a socket, an elastic detent and a sleeve. The socket includes a hole defined axially therein, an upper slot cut therein and a lower slot cut therein. The elastic detent includes an upper transverse section and a lower transverse section. The elastic detent is mounted on the socket so that the upper transverse section of the elastic detent enters the hole through the upper slot and that the lower transverse section of the elastic detent enters the hole through the lower slot. The sleeve includes an annular flange formed on an internal face. The sleeve can be moved on the socket so that the annular flange can move the upper and lower transverse sections from the hole along the upper and lower slots, respectively.

Abstract: A non-explosive actuator includes a housing, a push rod extending into one end of the housing and a plurality of dogs within the housing. A plunger is inserted into an opposite end of the housing and the push rod is depressed and locked in place. Depressing the push rod causes the dogs to engage the plunger and prevent it from being withdrawn from the housing. Unlocking the push rod eventually causes the dogs to release the plunger and allow the plunger to be withdrawn from the housing. The actuator may be reused after the plunger is removed from the housing. The actuator may be reused simply by re-inserting the plunger into the housing and re-depressing the push rod.

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 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 collet assembly is provided that securely holds tool bit shafts therein while allowing them to be readily and easily interchanged. The collet assembly herein has a very few number of parts and is easily assembled without the need for any special tools or machines therefor. In a preferred form, the collet assembly provides for release of the tool shaft by a forward sliding action of a collet sleeve. In this manner, rearward forces acting on the sleeve in an axial direction such as can occur during tool operations will not cause the tool shaft to be accidentally released. Another advantage is the use of a retaining member for releasably holding the shaft. The retaining member avoids the use of detent balls as in prior collets which can require ramp surfaces formed to very precise tolerances to engage and shift the balls into and out of a holding position on the shaft.

Abstract: A chuck 40 includes a body 42 having a plurality of angularly spaced ribs 166, 168 and 170 formed in a forward cylindrical opening 48 thereof. A locking element 236 is movable within a passage 180 of the body 42, and is formed with a defined portion 242 which is extendable from the passage 180, through an inboard peak surface 172 of the rib 166 and into the opening 48. An actuator 44 is coupled to the locking element 236 and is biased by a spring 250 to urge normally the defined portion 242 of the locking element into the opening 48. A bit 62 is formed with a shank 96 with three grooves 100, 102 and 104 extending axially to a free end 112 thereof. A pocket 114 is formed in a base of each of the grooves 100, 102 and 104. The bit 62 can be manually inserted into the opening 48 of the chuck 40 such that the grooves 100, 102 and 104 are located drivingly over at least portions of the ribs 166, 168 and 170, respectively.

Abstract: A holder for holding a tool, having an elongated housing, including a longitudinal hole having a cross-section corresponding to the cross-section of a mounting portion of the tool bit. The housing further has at least one radial hole running from an outside surface of the connector to the longitudinal hole. The radial hole contains a substantially spherical locking means movably arranged in the radial hole. The means cooperates with a circumferential groove in the tool bit to lock the tool bit in place when the tool bit is fully inserted into the holder. A sleeve is arranged to reciprocally slide over the first connector between two end positions. The sleeve is biased towards the tool by a first biasing means, and the sleeve has a step arranged on the inside of the sleeve, which step blocks the locking means when a tool is fully inserted into the longitudinal hole. A plunger is arranged to reciprocally slide inside the longitudinal hole, being pressed by a second biasing means towards the tool.

Abstract: A coupling device for use in inserting a soaking bar into a clay plugged blast furnace tap hole with a rotary percussion tool, having a first axial aperture at a first end adapted to be fitted onto a driving post of a rotary percussion tool, and having a second axial aperture at a second end adapted to receive and retain an end of a soaking bar in axial alignment with the coupling. The second axial aperture further includes jaws for releasably engaging the end of the soaking bar, and an impact body for transferring axial impact loads from the rotary impact tool to the end of the soaking bar.

Abstract: A chuck for drilling and chiseling tools and including a receiving sleeve at least one through-opening formed in a sleeve wall at least one locking member supported for a limited pivotal movement about a pivot axis, which extends substantially perpendicular to a longitudinal axis of the receiving sleeve, and projecting at least partially into the through-opening (12) of the sleeve with the locking member (6) extending in its locking position through the through-opening (12) into a receiving sleeve inferior, a guide ring surrounding the receiving sleeve and at least partially overlapping the locking member (6) in its locking position, preventing the locking member (6) from pivoting into its release position and an actuation sleeve (7) displaceable in a direction opposite to an operational direction of the tool against a spring-biasing force for enabling pivoting of the locking member (6) into the release position, with the locking member (6) being pivotally connected with the actuation sleeve (7).

Abstract: A hard carbon film is formed over an inner surface of a guide bush by fixing an auxiliary electrode support member for supporting an auxiliary electrode of a jig for forming a film in a center bore of the guide bush by an auxiliary electrode insulation member, disposing an auxiliary electrode in alignment with the axis of the center bore so as to face the inner surface, disposing legs, and a first electrode plate, a second electrode plate, and the insulation member which are fixed to the legs are placed on the bottom of a vacuum vessel placing the guide bush on the first electrode plate contacted electrically with a power source, while the projection of the auxiliary electrode support member projecting out of the auxiliary electrode insulation member is contacted electrically with the second electrode plate.

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 workpiece holding press tool with an elongated body having an annular collar extending from an end face and a plug member secured to the collar by a fastener. The plug forms an annular groove with the body that receives a retainer clip which frictionally engages the inside surface of a workpiece to retain the workpiece on the press tool. The retainer clip is a circular spring steel wire having opposed ends with a relieved portion formed on the outside surface thereof to prevent scratching, marring or otherwise damaging the inside surface of the workpiece. In another embodiment, a second plug is added to provide a second annular groove to receive a second retainer clip for holding elongated workpieces having a cylindrical inside diameter.

Abstract: A wire gripper which facilitates insertion of a wire and which retains wires of varying thickness. The wire gripper includes a first member biased towards a second member so that the first and second members are tangent to one another until a wire is inserted. An inserted wire rests on a receiving member beyond the point of tangency of the two members. The two members are resiliently urged together to prevent the inserted wire from leaving the wire receiving member.

Abstract: An electric toothbrush holder which comprises a elongate casing and an electric motor vibration unit supported within the casing, the casing forming a elongate cavity having an opening at the forward end of the casing for insertion of the handle of a toothbrush, in which opening there is provided a clamping structure having at least two clamping surfaces which are resiliently biassed together by a resilient member so as to clamp or hold a said toothbrush at its handle automatically when the toothbrush handle is inserted into the cavity through the opening.