摘要:
A tool handle assembly includes a molded adapter bonded to the end of a handle shaft, which adapter includes a generally cylindrical cap portion and a generally tapered frustoconical portion that surrounds the handle shaft adjacent to the cap portion. The handle assembly is inserted into a lower entrance of a tapered eyehole of a tool head such that the frustoconical portion of the adapter engages a portion of the eyehole. In one preferred form, the cap portion of the adapter includes external barbs. A pair of arcuate wedges having interior teeth are inserted between the cap portion of the adapter and the tool head and bear on the major axis of the tool head. The teeth of the wedge cooperate with the barbs of the adapter to secure the wedges in place. In another preferred form, the adapter includes a pair of slots into which wedge inserts are driven to expand the cap portion of the adapter and thus secure the tool head to the handle assembly. Again, the adapter includes barbs within the slots, and the wedges include teeth which cooperate with the barbs to secure the wedge inserts within the slots.
摘要:
A carrier for testing a singularized semiconductor die prior to packaging the die utilizes a removable die supporting substrate. The die is placed in the carrier and is electrically connected to the substrate, thereby allowing for the packaging or other use of only known good die. A bridge clamp presses against a rigid cover which, in turn, bias the die against a plurality of die contacting members located on the die supporting substrate. The use of the removable die supporting substrate permits a single carrier design to accommodate different die types and further permits handling equipment to mechanically handle the one carrier design. This facilitates the handling of the carrier so that the carrier can be conveniently used during burn-in and test procedures.
摘要:
A lightweight renewable hand-held tool that may be easily renewed in the field including a tool head having a tapered shaft, an expandable sleeve, a hollow handle, and a movement assembly for moving the expandable sleeve back and forth along the tapered shaft in response to a rotation of the hollow handle. The expandable sleeve includes a tapered interior that slidably mates with the tapered shaft. Consequently, rotation of the hollow handle adjustably expands the expandable sleeve, forming a tight fit between the tapered shaft and the interior of the hollow handle. The preferred movement assembly is a threaded nut that engages a threaded stud located at a lower end of the tapered shaft. An antirotation fastener is preferably used to prevent the hollow handle from thereafter rotating during use of the tool.
摘要:
A method of assemblying a hammer from a handle, a wedge unit and a hammer head unit. The handle has a top end having a neck portion that has a pair of vertical slots that intersect each other at substantially 90 degrees to each other. The wedge unit is formed from an x-axis wedge and a z-axis wedge section that are oriented to each other at substantially 90 degrees. The hammer head unit has a hammer portion a central portion and a claw portion. The central portion has a bore hole that extends from its top surface to its bottom surface. An arbor press is used to press the wedge section into the grooves on the top end of the handle.
摘要:
A hammer having unique structure in the handle receiving central portion of its hammer head unit. A wedge unit is formed from two intersecting wedge sections that are made of a specific plastic material. The top surface of one of the wedge sections is spaced downwardly a predetermined distance from the top surface of the other wedge section to form a channel for receiving a magnet. The wedge unit is driven into the top end of the hammer causing the wood to be wedged outwardly in four directions within the handle receiving central portion of the hammer head unit. The wedge sections of the wedge unit have a plurality of horizontal barbs and the respective slots formed in the top end of the handle have mating notches for receiving the horizontal barbs of the wedge unit. An epoxy adhesive may also be used to aid in holding the wedge unit in the top end of the handle.
摘要:
A quick release coupler is disclosed herein for selectively joining the end of a wrench extension shaft and a socket which includes a resiliently mounted push button actuator carried on the shaft operably engageable by high and low points to hold or move a drive train between a lock and a release position with respect to a detent in the cavity of the socket. The drive train moves in a linear mode which is translated into a lateral movement so as to move in and out of locking relationship with the detent of the socket.
摘要:
A hammer has a pair of substantially-parallel relatively-thin plate springs secured between the striking head of the hammer and its gripping handle. The respective plate springs are provided with longitudinal ribs (preferably outwardly curved in cross-section) to provide the desired stiffness, while assuring sufficient flexibility and preventing undue shocks and vibrations from being experienced by the user during extended use of the hammer. In lieu of plate springs, a U-shaped rod may be used.
摘要:
A handle for a hammer or the like striking tool comprises a body of elastomeric material having embedded therein a core made up of a pair of laterally spaced, flat bars of spring steel. Ends of the bars protrude from one end of the body. The handle is fastened to a hammer head by having the protruding end portions of the bars accommodated in a bore in the hammer head and by wedging them apart. The otherwise unoccupied space of the bore is filled with an epoxy resin. The bars are arranged with their planes lying parallel to the plane in which the hammer is swung in use.
摘要:
A connector comprising a tapered socket component, a complementary tapered spigot component and a sleeve component for location between the socket component and the spigot component, the sleeve component and one of the other components being screw engageable, whereby, in use, screwing together of these components laterally deforms the sleeve component to clamp the spigot component within the socket component.
摘要:
A handle and wedge assembly, for use with a hammerhead, to make a manually operated hammer; the wedge including two flat opposite sides tapering toward a point, and each flat side having a raised, transverse extending bulge, while the handle includes a conventional slit on one end, so as to form a slot into which the wedge fits, and the slot having a transverse extending lock groove, into which the raised bulge of the wedge snap fits, so as to prevent the wedge working itself loose, and out of the handle.