Abstract: A method for providing control data to an additive manufacturing device includes a first step of accessing computer-based model data of a partial area of a cross-section of the object, and a second step of generating a data model of the sub-region, by specifying a solidification of the building material by at least one energy beam bundle along at least one solidification path. A plurality of solidification path sections are scanned at least twice with an energy beam bundle and the amount of energy to be introduced during the scanning is specified so that either the amount of energy introduced during the first scanning or a subsequent scanning is is too small to cause a solidification of the building material. In a third step, control data corresponding to the data model generated in the second step are provided for generating a control data set for the additive manufacturing device.

Abstract: Provided is a method of producing a composite having high strength and high thermal conductivity. The method includes: an alloy preparation step including preparing an alloy which is a solid solution containing ?-Fe as a solvent and at least one type of ?-phase stabilizing element as a solute; a first mixing step including mixing at least one type of ?-phase stabilizing element in powder form and SiC to prepare a first mixture; a second mixing step including mixing the alloy and the first mixture to prepare a second mixture; and a sintering step including sintering the second mixture.

Abstract: A method for manufacturing a wick includes: supplying material powder containing metal powder onto a base; heating the material powder on the base to obtain a sintered compact; and rolling the sintered compact. In this situation, when the material powder supplied onto the base is heated to form the sintered compact, the sheet-shaped sintered compact can be formed. Further, when the sintered compact is rolled, a void ratio of the sintered compact can be controlled after forming the sintered compact, thereby controlling the capillarity of the wick.

Abstract: A method for preparing metal powder by water atomization is disclosed. The method includes the steps of smelting, atomization, separation and drying, and the metal powder is freeze-dried in the drying step. Experiments show that freeze-drying is an important factor affecting oxygen content indexes of copper and copper alloys, and can be applied to the preparation of copper and copper alloy powder and even metal powder with low oxygen content. The method further considers all the details that may cause oxidation during the atomization process, and takes comprehensive measures to greatly reduce the probability of oxidization of copper and copper alloy powder, so that the oxygen content and oxidation of the water atomized powder are effectively reduced, and the water atomized powder is not easy to be oxidized during long-term storage.

Abstract: A surface coated cutting tool includes a tool substrate; and a hard coating layer on the tool substrate. The hard coating layer includes, in sequence from the tool substrate toward a surface of the tool, a titanium carbonitride inner layer, a titanium nitride lower intermediate layer, a titanium carbonitride upper intermediate layer, a titanium oxycarbonitride bonding auxiliary layer, and an aluminum oxide outer layer. Titanium nitride grain boundaries in the lower intermediate layer and titanium carbonitride grain boundaries in the upper intermediate layer are continuous from titanium carbonitride grain boundaries in the inner layer. The texture coefficient TC(422) of titanium carbonitride in the inner layer and the upper intermediate layer is 3.0 or more, and the texture coefficient TC(0 0 12) of ?-aluminum oxide in the outer layer is 5.0 or more.

Abstract: In order to provide an adjustment device (1), which can be driven in rotation about a longitudinal axis (2), for adjusting a cutting tool, comprising a cutting tool carrier element (3) mounted for carrying out an adjusting movement (6), a drive unit (13, 13b) for driving the cutting tool carrier element (3) and a circuit carrier element (200), which has a surface region facing the drive unit (13, 13b), for forming at least one electronic control circuit (500, 510, 520, 530) provided for controlling the drive unit (13, 13b), 13b), which allows an improved compact design so that instabilities of the main drive element, in particular a tool spindle, are better avoided and the machining space is better utilised, it is proposed that two surface points (600, 610) of the surface area (220) can be connected outside the circuit carrier element (200) by a connecting straight line (620), the end points of which are the surface points (600, 610).

Abstract: The invention relates to a drill comprising a body which extends along a longitudinal axis (L) from a rear side (B) to a front side (F), wherein the body comprises a main cutting edge on the front side (F), wherein the body comprises at least one guide bevel which extends in axial direction (A) and toward the front side (F), wherein, toward the front side (F), the guide bevel has an end section which is tapered. The invention further relates to a method for producing such a drill.

Abstract: In an example, a method for milling a sink is disclosed. The method includes receiving a metal sheet, positioning the metal sheet in a receiving assembly for a milling machine, and scoring the metal sheet via a cutter of the milling machine. The metal sheet is scored along an axis corresponding to a bend of the sink. The method also includes manipulating the metal sheet to form the sink.

Abstract: A cutting insert for a rotary cutting tool has a second surface that includes a second seating surface having a shape of a flat surface. The first cutting edge has a first main cutting edge portion and a first sub cutting edge portion. The second cutting edge has a second main cutting edge portion and a second sub cutting edge portion. When viewed in a direction from the first surface toward the second surface, at least a portion of the second sub cutting edge portion is located outside the first main cutting edge portion, and at least a portion of the first sub cutting edge portion is located outside the second main cutting edge portion. When viewed in the direction from the first surface toward the second surface, each of the first sub cutting edge portion and the second sub cutting edge portion has a shape of a curved line.

Abstract: A cutting tool includes a cutting insert having an anti-rotation stopping indent formed in a transition between a bottom surface and a side surface thereof and includes a first stop surface. The insert seat has at least one anti-rotation stop, which protrudes with respect to a side wall of the insert seat and includes a second stop surface. The anti-rotation stop is arranged to inhibit rotation of the cutting insert in the insert seat by contact between the first and second stop surfaces. The second stop surface is completely located within the anti-rotation stopping indent when the cutting insert is mounted. As seen in a section perpendicular to a common central axis, an angle of less than 180° is formed between a tangent to the second stop surface and a tangent to the first duct at a transition between the two.

Abstract: An inventive milling tool has a tool head that is rotatable about a tool axis and configured for coupling at its rear to a machine spindle. A plurality of cutting elements are distributed around the tool axis on a cutting circle, each cutting element provided with a front plane cutting edge and a peripheral cutting edge extending at an angle thereto. A channel system extends through the tool head and is configured for delivering coolant to the cutting elements. A replaceable ring is releasably fastened on a front end flange of the tool head in an interlocking manner, and the cutting elements are carried by the replaceable ring.

Abstract: A material handling apparatus and a process for feed indexing. The process for feed indexing and processing of elongated stock includes the steps of gripping and moving an elongated stock with a first shuttle vise at a desired travel velocity toward a first final position. An open second vise accelerates from a second home start position until reaching the desired travel velocity. The second vise grips and moves the stock once the second vise is at the desired travel velocity while the first vise is gripping the stock. The first vise releases the stock and recycles to a first home position while the second vise moves the stock.

Abstract: A device for grinding pre-milled and hard metal-tipped teeth of saw bands, is provided. The device comprises a feed device for feeding a temporarily formed workpiece in a timed manner, wherein the temporarily formed workpiece is formed from a plurality of saw bands which are parallel to one another. The device further comprises a clamping device which clamps the plurality of saw bands against one another, and a grinding unit for simultaneously grinding a plurality of teeth. The grinding unit comprises a grinding wheel with a plurality of grinding profiles. A corresponding method is also provided, where the grinding unit grinds both the tooth backs and the tooth faces to final dimension in exactly one linear movement.

Abstract: A method of manufacturing a jointed device of a medical instrument includes providing a machining fixture on a wire electrical discharge machine having an electrical discharge wire. The fixture includes member holes each adapted to accommodate at least one workpiece, the workpiece being adapted to form a portion of the jointed device of the medical instrument. At least two workpieces each include a first workpiece and a second workpiece, accommodated within at least two member holes of the member holes. The fixture is associated with the wire electrical discharge machine so that the electrical discharge wire can cut at most one workpiece at a time. The machining fixture is rotated around a fixture rotation axis at a predetermined angle, which is chosen to provide that the electrical discharge wire can cut only one workpiece at a time. The workpieces are cut by the electrical discharge wire.

Abstract: Example embodiments of the present disclosure relate to methods, systems, and apparatus for joining metallic fabrics. The method includes applying heat to at least one of a fusible metal or alloy, a first metallic fabric, and a second metallic fabric with the fusible metal or alloy and the first and second metallic fabrics being in thermal communication. The first and second metallic fabrics are joined with the fusible metal or alloy.

Abstract: The present application provides a reflow oven (100) and a gas recovery method. The reflow oven (100) comprises a reflow oven hearth (101), a separator (105), the separator inlet (110) being connected to the gas outlet (102) of the reflow oven hearth (101) so that the gases in the reflow oven hearth (101) can flow into the separator (105), a zeolite box (107), the zeolite box inlet (112) being connected to the separator outlet (111), and the zeolite box outlet (113) being connected to the gas inlet (103) of the reflow oven hearth (101) so that the gases flowing through the separator (105) can enter the zeolite box (107) and the gases flowing through the zeolite box (107) can flow out of the zeolite box outlet (113), a sensor (106), which is provided in the gas passage between said zeolite box outlet (113) and the gas inlet (103) of the reflow oven hearth (101). The reflow oven (100) in the present application enables the gases flowing through the separator (105) to enter the zeolite box (107).

Abstract: A method for manufacturing a rod includes a step of preparing a hollow first member and a second member formed so as to have a portion smaller in outer diameter than an outer diameter of the first member, a restraining step of placing a restraining member into abutment with an outer peripheral surface of the first member, a step of moving an inner peripheral surface of the first member and an outer peripheral surface of the second member closer to each other while rotating at least one of the first member or the second member, and a step of joining the first member and the second member by welding with the aid of friction by axially pressing in the first member and the second member by a predetermined amount after placing the inner peripheral surface of the first member and the outer peripheral surface of the second member into contact.

Abstract: A perforation system is disclosed that utilizes an optical beamlet generator and a scanner (e.g., at least two moveable mirrors). The optical beamlet generator may be a lenslet array or a diffractive optical element. The optical beamlet generator outputs a plurality of beamlets from a single input laser beam. These beamlets are moved in at least two dimensions relative to a surface of a substrate to form perforations in the substrate.

Abstract: A joining system (100) of the present invention is for joining a joining target (W) including first, second, and third members (W1), (W2), (W3), and includes a welder (101), a friction stir welding machine (102), and a controller (110) that: (A) causes the welder (101) to weld the second and third members (W2), (W3); (B), after (A), causes the joining target (W) to be placed at the friction stir welding machine (102) so that the first member (W1) is opposed to a distal end of a tool (10); and (C), after (B), controls a linear motion driver (7) and a rotation driver (8) so as to, while pressing the distal end of the tool (10) to the joining target (W), rotate the tool (10) around an axis, so that the softened second and third members (W2), (W3) intrude into the softened first member (W1), thus joining the joining target (W).

Abstract: An aluminum alloy brazing sheet is formed of a brazing material, an intermediate material, a core material, and a brazing material. The intermediate material contains Mg of 0.40 to 6.00 mass %, and has total of contents of Mn, Cr, and Zr being 0.10 mass % or more. The core material contains Mg of 0.20 to 2.00 mass % and one or two or more of Mn of 1.80 mass % or less, Si of 1.50 mass % or less, Fe of 1.00 mass % or less, Cu of 1.20 mass % or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less. Each of the core material and the intermediate material has a grain size of 20 to 300 ?m, and each of the brazing materials contain Si of 4.00 to 13.00 mass %.

Abstract: A bracket presenter for an ultrasonic welder includes a one-piece first bracket portion and a one-piece second bracket portion mounted relative to one another. First and second tapered features are respectively provided by the first and second bracket portions and are nested relative to one another. The first and second tapered features engage in an extended position and are spaced from one another in a compressed position to provide a clearance enabling the first and second bracket portions to float lateral relative to one another. A spring biases the first and second bracket portions apart.

Abstract: This application relates to a welding information providing device. The device can provide a high-quality image that can easily identify a welding surrounding environment in addition to a portion adjacent to welding light by synthesizing images obtained under various photographing conditions. The device can also improve welding quality by providing an efficient guiding to an operator with respect to a current welding operation state. The device can include a cartridge unit that is located on a main body and selectively shields welding light, at least one camera unit that faces outward and obtains a welding image frame of a welding operation, and a sensor unit that detects a degree of light in at least a welding operation area. The device can also include an image display and a processor that provides a welding image generated through the welding image frame to the image display unit.

Abstract: Operating panel (1) for a welding device (SG) comprising a welding parameter display unit (2) for displaying welding parameters, and comprising at least one operating element (3) which can be actuated manually by a user, wherein the operating panel (1) can be switched between a welding parameter selection mode and a welding parameter editing mode by actuating the operating element (3), wherein in the welding parameter selection mode one of the welding parameters of the welding parameter display unit (2) can be selected by rotating the operating element (3), and wherein in the welding parameter editing mode a parameter value of a selected welding parameter of the welding parameter display unit (2) can be set by rotating the operating element (3).

Abstract: A method of bonding a mini-core to a surface of a core is provided. The method includes providing the mini-core with an attachment device that includes a protrusion of a surface of the mini-core, dipping the protrusion into a supply of paste to transfer a fixed quantity of paste to the protrusion and affixing the protrusion to the surface of the core with the fixed amount of paste interposed between the surface and the protrusion.

Abstract: This application relates to a method of manufacturing a knife using a multilayer material. In one aspect, the method includes preparing a multilayer material for manufacturing a knife, and heating and then forging the multilayer material to form a knife-shaped structure including a blade part and a handle part. The method also includes grinding the blade part to form a sharpened knife-edge and applying mud, including kaolin and white clay, to an entire surface of the knife-shaped structure and removing the mud applied to the blade part. The method further includes heating the knife-shaped structure applied with the mud, and quenching the heated knife-shaped structure through oil-cooling. The method further includes etching a surface of the quenched knife-shaped structure to form a pattern on the surface and grinding the surface-etched knife-shaped structure to form a knife having a final shape.

Abstract: A device for holding a stud with a radially flange and an axial shank. The holding device comprising a collet including a clamping section and a hollow insertion section defining an insertion axis such that the stud can be inserted via the insertion section to the clamping section. The holding device further comprising a tubular securing sleeve located radially inward of and concentric with the insertion section. A clearance is defined between a bottom end of the securing sleeve and a top end of the clamping section and is adapted to releasably receive the stud flange. A first air flow channel in a first direction is adapted to blow feed the stud into the collet; and a second airflow channel oriented in a second different direction is adapted to maintain the stud shank substantially in line with the insertion axis.

Abstract: A method for producing a composite element is provided. The method includes providing an outer frame comprising metal and having a first coefficient of thermal expansion in a first spatial direction and a second coefficient of thermal expansion in a second spatial direction, the first and second coefficient of thermal expansions differing from one another; providing an inner component comprising glass; heating the outer frame to an expanded state having the outer frame expanded with respect to the inner component in the first spatial direction in accordance with the first coefficient of thermal expansion and expanded along the second spatial direction in accordance with the second coefficient of thermal expansion; inserting the inner component in the outer frame when in the expanded state; and cooling the outer frame so that the outer frame contracts from the expanded state until the inner component is fitted in outer frame under compressive stress.

Abstract: An object of the present invention is to provide a device for installing a retaining ring on a shaft which can reduce the labor intensity of workers. The device for installing a retaining ring on a shaft comprises an expansion assembly. The expansion assembly includes a shell. A push block is movably fixed in the shell. Two expansion members that are symmetrical left and right are arranged in front of the push block. The expansion members include expansion portions that are located outside the shell and extend outward. Rear ends of the expansion portions are expansion portion first sections. The expansion members comprise a left expansion member on the left side and a right expansion member on the right side. The left end face of the expansion portion first section of the left expansion member is a slope extending leftward from rear to front. The push plate moves in a front-rear direction so that the expansion portions of the two expansion members move left and right, respectively.

Abstract: A light module projects multiple light beams onto an installation surface to form multiple light indicia spaced apart in a pattern on the installation surface, with the light indicia identifying installation locations on the installation surface where construction mounts are then installed. Embodiments include systems in which the light module includes a light emitter that projects a source light beam and a diffractor that diffuses the source light beam into the multiple light beams, systems in which the light module is adjustably mounted to and movable with a handheld tool used to install the construction mounts, systems in which the light module is adjustably mounted to a static-use support, and methods of using these systems to install the construction mounts.

Abstract: A motor control device includes: a position command section configured to generate a position command for a control object; a position detecting section configured to detect a position of the control object or a position of a motor configured to drive the control object; and a position control section configured to control a position of the motor based on the position command and the detected position of the control object or the motor, in which at least one of the position command section and the position control section includes a vibration suppression filter configured to approximate a reverse characteristic of a vibration characteristic generated between the motor and the control object, and the vibration suppression filter changes a vibration suppression frequency according to at least one of the position and a mass of the control object.

Abstract: This invention relates to a method for feeding magnetic objects in a stream which are singulated each from the next in a supply path where there is provided a series of electromagnets which provides a sequence of magnetic fields along the supply path to direct the magnetic objects by the series of electromagnets in a required direction toward a required location. The method can be used for carrying out an operation on a workpiece by interaction of the objects as individual tools with the workpiece including sorting, shaping, material removal, physical modification, chemical modification, addition of material cutting, polishing, abrading peening and addition of energy. A lubricant/purge material is supplied to the workpiece to arrive at different times relative to the tools.

Abstract: CMP polishing pads or layers made from a polyurethane reaction product of a reaction mixture comprising (i) a liquid aromatic isocyanate component comprising one or more aromatic diisocyanates or a linear aromatic isocyanate-terminated urethane prepolymer, and (ii) a liquid polyol component comprising a) one or more polymeric polyols, b) from 12 to 40 wt. %, based on the total weight of the liquid polyol component, of a curative mixture of one or more small chain difunctional polyols having from 2 to 9 carbon atoms, a liquid aromatic diamine, wherein the mole ratio of liquid aromatic diamine to the total moles of small chain difunctional polyols and liquid aromatic diamine ranges from 15:85 to 40:60, wherein, the reaction mixture comprises 48 to 68 wt. % hard segment materials.

Abstract: The present invention provides CMP polishing pads or layers having a Shore DO (15 second) hardness of from 40 to 80 made from a two-component reaction mixture of (i) a liquid aromatic isocyanate component comprising one or more aromatic diisocyanates or a linear aromatic isocyanate-terminated urethane prepolymer, and (ii) a liquid polyol component comprising a) one or more polymeric polyols, b) from 15 to 36 wt. %, based on the total weight of the liquid polyol component, of one or more small chain difunctional polyols having from 2 to 6 carbon atoms, c) from 0 to 25 wt. %, based on the total weight of the liquid polyol component, of a liquid aromatic diamine which is a liquid at standard pressure and at 40° C., and d) an amount of water or CO2-amine adduct sufficient to reduce the density of a CMP polishing pad made from the two-component reaction mixture to from 0.2 to 0.50 g/mL, wherein the reaction mixture comprises 60 to 75 wt.

Abstract: There is provided a processing method of grinding a workpiece. The processing method includes a holding step of holding the workpiece on a side of its front surface on a chuck table, a coarse grinding step of grinding the workpiece on a side of its back surface with first grinding stones until the workpiece has a predetermined thickness, an auxiliary grinding step of grinding the workpiece on the side of its back surface with the first grinding stones such that an unground region remains at an outer peripheral portion of the workpiece, an unground region grinding step of grinding the unground region with second grinding stones having an average abrasive grain size smaller than that of the first grinding stones, and a finish grinding step of grinding the workpiece on the side of its back surface with the second grinding stones until the workpiece has a predetermined finish thickness.

Abstract: An ice blade measuring system comprises a holder for holding an ice blade in a measurement position, and a non-contact measuring device operationally positioned relative to the holder to measure at least a three-dimensional (3D) shape of an ice contacting surface of the ice blade held in the holder. The non-contact measuring device is configured to create a dataset which corresponds to the measured 3D shape. The system further comprises a data storage means operatively connected to the non-contact measuring device to record the measured dataset.

Abstract: A waterjet system is provided, including a pump configured to pump fluid, an electric motor configured to drive the pump, a hopper configured to store abrasive, and a mixing chamber configured to mix abrasive from the hopper and the fluid from the pump to produce a slurry. A cutting bed is configured to receive a workpiece to be cut. A cutting head is configured to expel the slurry through the outlet nozzle as a high-velocity jet into the cutting bed.

Abstract: A method for forming an abrasive article via an additive manufacturing technique including forming a layer of powder material comprising a precursor bond material and abrasive particles, compacting at least a portion of the layer to form a compacted layer, binding at least a portion of the compacted layer and repeating the steps of forming, compacting and binding to form a green body abrasive article.

Abstract: An abrasive article including a bonded abrasive body having a certain Homogeneity Factor and a multimodal distribution of abrasive particle sizes where the particles size of a first mode is no greater than 80% of a particle size of a second mode. The bonded body can also have a consistent hardness throughout the body.

Abstract: An abrasive article including a bonded abrasive having a body of a diameter of at least 260 mm and a volume of at least 20 cubic centimeters, the body also having a bond material including an inorganic material, abrasive particles having an abrasive particle size of at least 40 microns contained in the bond material, and a certain Homogeneity Factor.

Abstract: An impact tool (1; 1A) includes a spindle (12) rotated by a motor (10) and a hammer (70) rotated by the spindle. The hammer is designed to impact an anvil (14) in a rotational direction. A case (8) houses the hammer. A bearing (78A, 78B) is disposed between the hammer case and the anvil. An O-ring (84) is disposed between the anvil and the bearing.

Abstract: A nailing unit includes a nail box, a nail magazine, a nail pushing block, a tail buckle switch, a nail limiting block fit together with a nail guiding plate through slits is provided. The nail magazine includes a heat-treated guide rail assembly mounted with a nail splitting plate at the end near the nail guiding plate. The nail pushing block connected to a spring is formed with three nail pushing feet adapted to a first, second, and third gaps. The nail guiding plate includes two connecting wings and forms a low-lying guide plate therebetween. Each angle between the guide plate and each connecting wing is respectively fixedly provided with a positioning step along the longitudinal direction.

Abstract: A system, an electrical combination and a method for powering a load device. The combination may include a burst circuit configured to provide power to the load device to perform a burst operation, the burst circuit including a supercapacitor, a first switch between a power source and the supercapacitor and operable to control whether power is provided from the power source to charge the supercapacitor, and a second switch between the supercapacitor and the load device and operable to control whether power is provided from the supercapacitor to the load device; and an electronic processor configured to control the first switch and the second switch based at least in part on a voltage of the supercapacitor.

Abstract: An eccentric drive 1 for a portable power tool 2 has a motor 5, an eccentric wheel 6, a linear guide 9, a slide 8 and a connecting rod 7, which has a head 17 suspended on the slide 8 and a second head 15 suspended on the eccentric wheel 6. A bearing bush 16 for the rotatable mounting of the connecting rod 7 is provided at least on one of the two heads 17. The head 15 is composed of an injection molding material. The bearing bush 16 is composed of a fiber composite material, which includes continuous carbon fibers 25 embedded in a thermoplastic matrix.

Abstract: A power tool and method for recording and playing back a motor parameter. The power tool includes a housing, a motor, a trigger, and a controller. The trigger outputs an activation signal based on a user input. The controller receives a user mode selection signal indicating a selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter to generate a recorded motor parameter. The recorded motor parameter covers a first time period in which motor is operating in response to depression of the trigger, a second time period in which motor is inactive in response to release of the trigger, and a third time period in which motor is operating in response to another depression of the trigger. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal.

Abstract: A constant torque module for a power tool includes a transmission ring member, which has a core shaft, two accommodations and two drive blocks, two buffer units disposed respectively in parts of the accommodations such that each of the two accommodations remains a receiving space, an internal shaft member, which has two inner protrusions extending into the receiving spaces and being contactable with the two buffer units respectively, a shaft notch engaged with the core shaft, and a shaft rod having an engagement portion, and an external shaft member including two outer protrusions contactable with the two drive blocks respectively, and a shaft tube having an engagement notch engaged with the engagement portion of the internal shaft member. As such, the constant torque module outputs different torques when it rotates in reverse directions and has the advantages of high rotational speed, good working efficiency and low manufacturing cost.

Abstract: A hand-guided work apparatus has a handle having a first and a second operator-controlled element pivotably mounted thereon. The handle surrounds a guide tube. The first element can activate a motor. The guide tube defines a central plane containing a longitudinal axis. The plane is oriented parallel to a first axis of the first element. The first element projects out of the handle on a first side of the plane. The second element is pivotably mounted on a first and a second pivot bearing arranged on opposite sides of the plane. The tube projects through an opening in the second element. A third operator-controlled element can pivot about a third axis. In its actuated position, the third element holds the second element in its actuated position via a holder. The second axis of the second element lies in a plane extending perpendicular to a fourth axis of the holder.

Abstract: A telescoping tool includes a pole assembly, a driveshaft, a plurality of bearings, and at least one connection member. The pole assembly includes an outer pole and an inner pole. The inner pole is slidably received in the outer pole. The pole assembly is movable between a retracted configuration and an extended configuration. The driveshaft extends longitudinally in the outer pole and the inner pole. Each bearing of the plurality of bearings includes a driveshaft passage defined therein. The driveshaft passage receives the driveshaft therethrough. Each bearing further includes an end connection passage defined therein. The at least one connection member joins adjacent bearings of the plurality of bearings. The at least one connection member is disposed in the end connection passage of each of the adjacent bearings.

Abstract: A socket holder is provided, including: a base; a post, including a top wall, a circumferential wall, at least one first convexity and at least one second convexity, the circumferential wall being connected laterally to and between the base and the top wall, the at least one first convexity and the at least one second convexity being radially protrusive on the circumferential wall, the at least one first convexity being configured to be engaged in a socket, the at least one second convexity being configured to be abutted against an inner wall of the socket; wherein the at least one first convexity defines a first centerline extending circumferentially, the at least one second convexity defines a second centerline extending circumferentially, and the first centerline and the second centerline are axially offset.

Abstract: A tool box structure includes multiple tool boxes. Each of the tool boxes includes a first case, a second case, a first restriction unit, and a second restriction unit. The first case is provided with a receiving space, multiple first mounting portions, a first locking portion, a first inclined face, two second mounting portions, and a limit portion. The second case is provided with multiple third mounting portions, a second locking portion, a second inclined face, two fourth mounting portions, a first receiving groove, a second receiving groove, and a third receiving groove. The first restriction unit is mounted in the first receiving groove and moved in the first receiving groove to restrict or release the limit portion. The second restriction unit is mounted in the second receiving groove. The second restriction unit is assembled with the first restriction unit.

Abstract: Various socket holder designs are shown. The socket holder includes a body portion formed from a first material and a collar portion formed from a second material. The collar includes a base portion with an outer surface positioned to engage with an inner surface of a socket, keeping the socket positioned on the socket holder.