Abstract: A roller wrench including a body with a circular chamber; a driving member with multiple sides capable of rotating in the chamber; a plurality of rollers installed in the chamber and located between a side of the driving member and a peripheral wall of the chamber; and a reversing knob capable of driving the rollers to move. Each of the sides of the driving member has a central area, a concave latching surface is respectively provided on two sides of the central area, and a concave state of each of the latching surfaces is gradually concaved inwardly from an inner side to an outer side. When each of the rollers is located on one edge of each of the sides, a peripheral surface of the roller contacts with the latching surface and the peripheral wall of the chamber; the body, rollers and driving member are latched with one another.

Abstract: A method for processing a semiconductor wafer is provided. The method includes placing a first semiconductor wafer on a wafer chuck in a process chamber. The method further includes adjusting a distance between a gas dispenser positioned above the wafer chuck and an upper edge ring surrounding the wafer chuck. The method also includes producing a plasma for processing the first semiconductor wafer by exciting a gas dispenser from the gas dispenser after the adjustment. In addition, the method includes removing the first semiconductor wafer from the process chamber.

Abstract: A structure for mounting a cover plate in a head portion of a wrench is disclosed. An end surface of the head portion is concavely provided with a receiving chamber. The head portion is also concavely provided with a recess at the opening of the receiving chamber. The cover plate is mounted in the recess to close the receiving chamber, and the cover plate is fixed in the recess by the peripheral wall of the recess itself. In other words, the cover plate is mounted in the head portion of the wrench without using any connecting element and is fixed by the head portion of the wrench itself. The cover plate, once fixed, is kept from coming off so that the components mounted in the receiving chamber of the head portion will not fall out.

Abstract: A socket-driven lighting connector is configured to connect with a socket and includes a connector main body, a light bulb, a switch, and a positioning ball. The connector main body includes an enclosing wall and a radial through hole. The enclosing wall surrounds and forms a through space. The radial through hole penetrates the enclosing wall and is in communication with the through space. The light bulb is disposed in the through space. The switch is provided in the through space and is electrically connected to the light bulb. The positioning ball is movably provided in the radial through hole. The switch and the positioning ball are so structured that by mounting the socket on the connector main body, the light bulb can be turned on to enhance the efficiency with which the socket can be operated in the dark.

Abstract: A hand tool includes a first driving element, a second driving element and at least one connecting element. The first driving element includes a first driving portion and a first staggered portion. The first driving portion is connected to the first staggered portion integrally. The second driving element does not contact the first driving element and includes a second driving portion and a second staggered portion. The second driving portion is connected to the second staggered portion integrally. The connecting element connects the first staggered portion and the second staggered portion, wherein the connecting element is made of insulating material.

Abstract: The invention is a hand tool for enhancing strength of a working head, which comprises: a main body with two parallel ears spaced apart at a front end; a working head with a pivotal portion pivotally connected between the ears of the main body; a column with one end connected to a periphery of the pivotal portion; and a strengthening portion extending from the periphery of the pivotal portion toward the column, and disposing at a junction of the pivotal portion and the column. An outer diameter of the strengthening portion is greater than an outer diameter of the column, the strengthening portion is capable of enhancing a strength of the column, relatively improving a torsion applied by the column to a workpiece, and enhancing durability and strength of the column.

Abstract: A threaded fastener capable of torque detection includes: a head and a shank connected together, wherein the shank has a threaded peripheral surface; a neck formed at the junction between one end of the shank and the head; and at least one sensing element and a sealing element, both provided on the neck, wherein the sensing element is configured to detect deformation of the neck, and the sealing element seals the sensing element. The threaded fastener may further include a covering element that covers the sealing element. The threaded fastener can be deformed consistently, allowing the sensing element to obtain relatively accurate detection values.

Abstract: A ratchet wrench structure includes a handle portion, a head portion, a ratchet hole, a ratchet portion, an extending rod and a driving portion. The head portion is connected to the handle portion. The ratchet hole penetrates the head portion and includes a plurality of first tooth portions, and the ratchet hole has a driving axis. The ratchet portion is detachably disposed at the ratchet hole, the ratchet portion includes a plurality of second tooth portions, and the second tooth portions correspond to the first tooth portions. A first end of the extending rod is integrally connected to the ratchet portion, and the extending rod extends along the driving axis. The driving portion is integrally connected to a second end of the extending rod and detachably connected to a workpiece.

Abstract: A C-clip includes a C-shaped clip body and two peripherally open holes. The clip body can be opened and closed elastically. The peripherally open holes are provided on two lateral sides of the clip body respectively and are adjacent to or located at the two ends of the clip body respectively. The peripherally open holes are provided in the clip body and each have a communication opening and a closed end. A wall between the communication opening and the closed end of each peripherally open hole forms a stop edge for preventing a tip of a retaining ring plier from moving out of the peripherally open hole. The outer diameter of the clip body can be changed by applying forces to the clip body via the peripherally open holes respectively. As the clip body does not have any particularly protruding portion, the C-clip can be used in various situations.

Abstract: A button mechanism is provided, including a button element, a magnet connected to the button, a hollow tube, a first coil, and a second coil. The first and second coils are disposed on the tube. When the first coil generates a first magnetic field, the magnet is magnetically attracted by the first coil, and the button element is positioned in the first position. When the second coil generates a second magnetic field, the magnet is attracted by the second coil, and the button element is positioned in the second position.

Abstract: A wrench shaft structure includes a working head, a shaft, and a through hole unit. The working head has a pivotal connection portion at one end. The pivotal connection portion has a through bore. The shaft has a lug portion at one end and a body portion. The lug portion has a connection hole pivotally connected to the through bore such that the working head is pivotally connected to the shaft. The through hole unit has a layout length along the body portion and penetrates the body portion in the same direction as that in which the connection hole penetrates the lug portion. While the through hole unit is configured to reduce the weight of the shaft, the body portion still has a continuous structure along the moment arm of the force applied to the shaft during operation so that the shaft can apply a force of the expected magnitude.

Abstract: An alerting structure of an electronic torque tool includes a tool body and an electronic module. The electronic module includes a sensing unit, a processing unit, and at least one display unit. The sensing unit senses an operational value of the tool body. The processing unit sends the operational value sensed by the sensing unit to the display unit. The display unit has at least one display block. When the operational value sensed by the sensing unit reaches a predetermined value, the processing unit generates a rotation signal in order for the contents displayed by the display block of the display unit to rotate back and forth through a predetermined angle and thereby produce a conspicuous alerting effect.

Abstract: A button mechanism is provided, including a button element, a magnet connected to the button, a hollow tube, a first coil, and a second coil. The first and second coils are disposed on the tube. When the first coil generates a first magnetic field, the magnet is magnetically attracted by the first coil, and the button element is positioned in the first position. When the second coil generates a second magnetic field, the magnet is attracted by the second coil, and the button element is positioned in the second position.

Abstract: A socket wrench with a reversible structure includes a rod, a sleeve, a first ratchet block and a second ratchet block. The rod has a columnar surface, and includes a first slot and a second slot. The first slot and the second slot are disposed on different positions along an axis direction of the rod. The sleeve is slidably sleeved on the rod, and includes an accommodating end and a driving end. The accommodating end includes a toothed segment which is protruded radially inward from an inner wall of the accommodating end. The first ratchet block is movably disposed in the first slot and includes a first ratchet portion. The second ratchet block is movably disposed in the second slot and includes a second ratchet portion. The toothed segment of the sleeve is selectively engaged with one of the first ratchet block and the second ratchet block.

Abstract: The present invention provides a cover plate structure of ratchet wrench comprising: a main body, inside a head portion thereof has an accommodating space, a peripheral wall is formed in the accommodating space, and the accommodating space is formed with at least one opening; a ratchet mechanism provided in the accommodating space; a cover plate having a cover portion and a snap-abut portion, the cover plate is placed in the opening of the accommodating space, and the snap-abut portion is stuck against the peripheral wall of the accommodating space. an elastic fastener member is disposed between the head portion and the cover plate, the fastener member applies an elastic force to the cover plate, so that the snap-abut portion of the cover plate elastically snaps against the peripheral wall of the accommodating space. The cover plate is capable of bearing the load during operation, increasing the withstand strength of the head portion.

Abstract: A tubular body for an electronic torque wrench is integrally formed and includes a small diameter portion, a bridge portion, and a large diameter portion connected along the longitudinal direction of the tubular body. The bridge portion has a small diameter end connected to the rear end of the small diameter portion and an opposite large diameter end connected to the front end of the large diameter portion. As there is no gap at the junction between the large diameter portion and the small diameter portion, the tubular body is dustproof, has a lower production cost and higher structural strength, and makes an electronic torque wrench a better appearance.