Abstract: A punch system or assembly includes a punch body and a punch tip or insert with a working end and a stem configured for selective engagement and disengagement within a cavity in the punch body. A latch mechanism which can be operated without tools is configured to engage the punch tip stem within the axial cavity in a closed position, and to disengage the punch tip from the punch body in an open position.

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. 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 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 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: 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: A tool bit and collet assembly, and method of assembling, wherein there is a collar for holding the collet in the radially inward position to thereby hold the tool bit. Camming surfaces are between the tool bit and the collet, and between the collet and the collar, for opening the collet upon insertion the tool bit into the collet, and thereby move the collar to the opening position.

Abstract: A rapid detached connecting device comprises a rod body having an engaging portion; the rod body having a hollow body; an engaging block installed within the rod body; the engaging block having a stop block; a buckling unit inserted into the engaging portion for limiting the movement of the engaging block; an elastomer resisting against the engaging block so as to move toward a front end of the engaging portion; and an opener head having an guide tapered end and an annular groove; the guide tapered end having a shape corresponding to the stop block of the engaging block. When the opener head is inserted into the engaging portion of the rod body; a distal end of the opener head will press the engaging block so that the engaging block moves; and the stop block capable to adhere to the guide tapered end.

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: A chuck device includes a body having a slot in a first end thereof and a hole is defined radially in the body and communicates with the slot. A spring is mounted to the body and is biased between a stepped shoulder on the body and a movable clamp connected to the body. A connection rod is connected to a second end of the body. A positioning pin is movably inserted in the hole and an end of the positioning pin extends from the hole and has a tapered periphery. A sleeve is slidably mounted to the body and has a first tapered inner periphery for being matched with the tapered periphery of the positioning pin. A second tapered inner periphery is defined in a second end of the sleeve so as to push the movable clamp when sliding the sleeve by compressing the spring.

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 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 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 tool holder for coupling of rotating and striking tools with hand power tools has a coupling sleeve, a drive member connectable to a hand power tool and transmitting a drive movement, the coupling sleeve being connected with the drive member, a tool shaft provided with groove-shaped locking pockets which are closed at both sides in an axial direction, the coupling sleeve being connected with the tool shaft, elongated locking bodies which are oriented axis-parallel and engage in the locking pockets, the coupling sleeve having a longitudinal passage in which each of the locking bodies are axially displaceable and held radially immovable, a displacement sleeve which surrounds the coupling sleeve with the locking bodies and is spring-loaded in an axial direction, the displacement sleeve having an inner blocking surface which blocks a radial movement of the locking bodies, each of the locking bodies has a construction which is saddle-shaped in a longitudinal section and has two humps which have an arcuate cross-

Abstract: Chuck mechanisms quickly connect and enable quick disconnection of an impeller shaft of a mixer from the drive shaft of the motor unit. A spindle has a keyway which enables a key, either a detent key which is movable in the keyway or a key which is provided by pins extending from the shaft, to be aligned in locking position where the key transfers the thrust from the spindle to the shaft or an unlocked position where the shaft is rotated out of the locking position and may be removed from the spindle. The key is retained in locking position by an outer sleeve or collar having a slot which enables the key to move away from the shaft when the shaft is rotated to the unlocked position. When the collar is rotated to move the slot away from the key, the key is locked against outward movement.

Abstract: A fluid cylinder assembly comprising a fluid cylinder having ports disposed at opposite ends thereof communicable with a source of fluid under pressure, a piston disposed in said cylinder having a first rod section extending through an end of said cylinder, extendable and retractable relative to said cylinder, the first piston rod section having an axial bore, a second piston rod section having a guide portion disposed in the axial bore of the first piston rod section and axially displaceable relative the first piston rod section, and means for detachably locking the first piston rod section to the second piston rod section.

Abstract: A tool-gripping device for remote manipulators, industrial robots and like assemblies which includes a sleeve provided with a movable locking element having an opening therethrough which is traversed by a stepped pin member associated with each tool and wherein the locking element is resiliently urged and operable to engage the pin member at an angle with respect to the longitudinal axis thereof to thereby force the tool into close proximity with the gripping device.

Abstract: 44A clip for securing a handle shaft in a shaft-receiving opening in a tool is disclosed. The clip comprises a central portion and a tab portion integral with the central portion to project through a radially-directed slot in the structural portion of the tool which surrounds the shaft-receiving opening. One or the other of the central portion or the tab portion is configured for positioning on the interior of the structural portion of the tool which surrounds the shaft-receiving opening, and the other on the exterior. A flange depends from the central portion. The flange has an elongated aperture through which the handle shaft passes. The edge of the aperture remote from the central portion, preferably provided with teeth, is angled and biased towards the handle shaft to anchor it. Instead of the apertured flange, a tongue depending from the central portion and angled and biased towards the handle shaft may be used.

Abstract: Centrifugal chucking apparatus for fixing a member to be rotated to a rotatable driving member includes a cylindrical cage member adapted to be mounted for rotation with the driving member, at least one clamping body movably mounted within an aperture formed in the cage member and which moves into engagement with the member to be rotated during rotation of the driving member under the action of centrifugal force, and at least one lever member associated with the clamping body and mounted for rotation with the driving and cage members. The lever member mutually engages both the clamping body and the cage member and during rotation of the driving member the lever member is urged outwardly under the action of centrifugal force. The lever member is appropriately positioned so that as a result of this outward urging under centrifugal force, the lever member exerts a force against the clamping body which has a direction to increase the force with which the clamping body engages the member to be rotated.

Abstract: A one-way clutch having radially movable sprags is utilized to repair a drive assembly including a carrier which drives an output gear through the one-way clutch with the worn surfaces on the carrier and the gear being ground down a total of 0.006 inches with the sprags adapting to the resulting spacing by appropriate radial movement.