Abstract: A power tool attachment part for a power tool includes an elongated housing including an upper housing part and a lower housing part interconnected with the upper housing part. An input gear wheel for connection to an output shaft of the power tool is arranged at a first end of the housing. An output gear wheel with an output connection is arranged at a second end of the housing. At least one intermediate gear wheel is arranged inside the housing to transmit rotation of the input gear wheel to the output gear wheel. A magnet is arranged in the elongated housing, wherein the magnet is arranged to collect ferromagnetic particles.

Abstract: An attachment part for tightening joints includes an elongate housing including an upper housing part and a lower housing part, an input gear wheel for connection to an output shaft of a power wrench, arranged at a first end of the housing, an output gear wheel for connection to a joint to be tightened, arranged at a second end of the housing, and at least one intermediate gear wheel arranged inside the housing to transmit rotation of the input gear wheel to the output gear wheel, wherein each gear wheel has outer slanted teeth that connect the gear wheels and transmit said rotation there between.

Abstract: An attachment part for a power tool includes an elongated housing including an upper housing part, a lower housing part and an interconnection structure that interconnects the upper and lower housing parts. An input gear for connection to an output shaft of a power tool is arranged at a first end of the housing. An output gear with an output interface is arranged at a second end of the housing. The interconnecting structure includes a sleeve member extending through a first central bore at the first end of the upper housing part, which sleeve member receives the input gear, and a fixation member extending through a second central bore at the first end of the lower housing part and which is arranged to be secured to the sleeve member to clamp the upper and lower housing parts. A tool assembly includes a power tool and the attachment part.

Abstract: A method for evaluating a condition of a torque wrench includes connecting the torque wrench to an adapter, detecting a click point, where a click mechanism of the torque wrench is decoupled from a first position into a second position, and measuring a click torque value at the click point, detecting a peak point and measuring a peak torque value at the peak point, detecting a release point, where the click mechanism is moving back from the second position into the first position, and measuring a release torque value at the release point, determining that the evaluation was performed correctly if the click point, the peak point and the release point were detected.

Abstract: An electric power tool includes an electric motor with a motor gear, an output shaft with an input gear, a coupling that connects the motor gear to the input gear, and a housing that houses the motor, the motor gear, the coupling and the input gear. The coupling includes a shaft portion and two connective portions arranged at opposite ends of the shaft portion for connection to the motor gear and input gear, respectively. The motor gear and the input gear, each, have a cambered profile allowing a tilting movement of the coupling with respect to an axial position of one of the motor gear and the input gear that has a cambered profile.

Abstract: An engagement part of a tool such as a hydraulic wrench (10), the engagement part (1) such as a ratchet link being arranged to engage a workpiece and a power head (11), the engagement part (1) being arranged to convert movement generated by the power head (11) into movement of the workpiece, the engagement part (1) comprising a mounting for the power head (4, 14), the mounting (4, 14) comprising a moveable portion moveable (4) from a first position where the power head (11) is fixed relative to the engagement part (1) and a second position where the power head (11) can move relative to the engagement part (1), the moveable portion (4) comprising a pin having a length and slidable along its length in a bore (17) in the engagement part (1) and a friction lock (2, 3) comprising a compressible member (3) and a compressing member (2) arranged to compress the compressible member (3), the compressible member (3) being arranged such that it expands in at least one extent on compression by the compressing member (2) s

Abstract: Disclosed is a feeding structure for a fastening device. The feeding structure comprises: a feeding mechanism, one end of which is a feed end, the other end is a discharge end, the feeding mechanism comprises a feed pipe and a conveying pipe that are communicated with each other, a mounting part entering from the feed end can be conveyed to the discharge end through the feed pipe and the conveying pipe. A propulsion mechanism is provided on one side of the feeding mechanism, with a central axis that is parallel to a central axis of the feed pipe. A material receiving portion for communicating the discharge end to receive the mounting part is provided on a shell of the propulsion mechanism, where a propulsion unit action of the propulsion mechanism can push the mounting part conveyed to the material receiving portion and mount same in a target position.

Abstract: Calibration device for dynamometric tools, such as for example a torque wrench (C) for tightening, comprising a sliding mechanical structure (2) associated with a frame of a test bench (B), which allows to impart a force and a controlled rotation in such a torque tool, said tool having its clamping tool (T) engaged in a brake (F) placed on the bench (B), which simulates a clamping of a bolt. Said mechanical structure comprises a pair of longitudinal bars (3) which can be connected to said bench, on which at least one guide (4) is mounted transversely, and on this guide there is a support (5) which slides by means of movement means in the transverse direction (Y) and is provided with constraint means for the tool body, so that the tool is pivoted on the brake (F) with its tool head (T) and can rotate to simulate a tightening brake F when the support (5) is moved along this guide (4).

Abstract: Provided is a cylinder connection assembly comprising a ventilation connection sleeve sleeved on a piston shaft of the cylinder, the ventilation connection sleeve fixedly provided in a cylinder barrel of the cylinder and separates an inner cavity of the cylinder barrel to form front and rear air chambers, a first ventilation hole communicating with the front air chamber and a second ventilation hole communicating with the rear air chamber are provided on the ventilation connection sleeve, so that when the compressed gas is filled into the front air chamber through the first ventilation hole, or the compressed gas is filled into the rear air chamber through the second ventilation hole, the piston assembly in the cylinder barrel can move axially. Through the ventilation connection sleeve provided in the cylinder barrel, the compressed gas can directly enter the front air chamber or the rear air chamber through the ventilation hole thereon.

Abstract: The present invention relates to an electric power tool being operable according to at least one of multiple features depending on licenses being accessible to the electric power tool using a private key adapted for providing access to licenses, the private key being storable in a client wallet associated with the electric power tool, wherein the licenses accessible for using the private key depends on license transactions successfully validated in a blockchain network.

Abstract: Provided is a bit attachment device comprising an attaching sleeve, a disassembling-attaching assembly and an abutting assembly arranged in sequence. A first end of the attaching sleeve is attached to a movable rod within the tightening module via a buffer assembly to synchronize movement with the movable rod. A first end of an attaching shaft of the disassembling-attaching assembly forms a tight fit with a second end of the attaching sleeve via a spline structure, and the second end is attached to a bit. The abutting assembly is movably provided at a position on an outer periphery of the second end of the attaching sleeve, so that it can abut against the attaching shaft in a radial direction or move away from the attaching sleeve to loosen the attaching shaft, and with the buffer assembly, mitigate the impact force of the structure to be locked when the bolt is installed.

Abstract: A screw forwarding device for a screw feeder includes a base plate, a vibration mechanism including at least one spring and a vibration motor connected to the at least one spring, and a rail for receiving screws. The rail is connected to a first end of the at least one spring and the at least one spring is arranged at an oblique angle to the rail. The screw forwarding device further includes a fastening mechanism for rigidly connecting a second end of the at least one spring to the base plate, whereby a movement path of the vibration mechanism, during a use of the screw forwarding device, defines a plane of movement. The base plate is oriented substantially parallel to the plane of movement defined by the vibration mechanism.

Abstract: An electric tool adapted to perform tightening operations where torque is delivered in pulses to tighten a screw joint. The electric tool including an electric motor drivingly connected to an output shaft. A processor and a memory storing software instructions that, when executed by the processor cause the electrical tool, retrieve a first power level parameter p1 indicating a first power level to be used for torque pulses up to a torque threshold. And retrieve a second power level parameter p2 indicating a second power level to be used for torque pulses above the torque threshold. Then control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the first power level p1 until the torque threshold is reached. And control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the second power level p2.

Abstract: A power wrench includes a cylindrical housing, an electric motor, an output shaft connected to the motor and a power switching device activated by a trigger located on the housing. The trigger is supported on an annular sleeve element coaxially disposed and rotatable relative to the housing for enabling adjustment of the angular position of the trigger relative to the housing. Irrespective of its angular position the trigger is arranged to axially displace a non-rotatable activation ring to activate the power switching device. The housing includes an adjustable angle head supporting the output shaft and arranged to be set in alternative angular positions relative to the housing.

Abstract: A handheld electric tightening tool includes a housing and a sealing arrangement. The sealing arrangement is adapted to seal a first portion of the housing from a second portion of the housing and includes a sealing element and a spring. The sealing element includes a first portion adapted to bear against a shoulder formed in the housing, and a second portion adapted to bear against a portion of an outer surface of a rotating axle of the tool. The spring is adapted to at a first end bear against a shoulder formed in the sealing element and at a second end bear against a supporting element arranged on the axle, such that a force is exerted on the sealing element urging the sealing element against the shoulder formed in the housing.

Abstract: Disclosed is a socket unit comprising a first body portion comprising a first rear end portion for connection to the output shaft of a power tool and a front end portion adapted for engagement with a screw joint and a second body portion comprising a second rear end portion for connection to the output shaft of the direct driven power tool or a second front end portion adapted for engagement with a screw joint. The second body portion is at least partly arranged in the first body portion, and a relative rotation between the first and second body portions is allowed, such that one of the first and second body portions may rotate over a predetermined allowable angular range when the other is in engagement with the screw joint. The present specification also relates to a corresponding method, power tool and computer readable storage medium.

Abstract: An electric pulse tool is configured to deliver torque in pulses on an output shaft thereof and includes an electric motor to drive the output shaft. The electric pulse tool is configured to, for each period, provide a current pulse to the electric motor during a current-on time interval, pause a current feed to the electric motor after the current-on time interval until an end of a torque pulse, determine a width of the torque pulse, and continue pausing the current feed to the electric motor during a pause interval from the end of the torque pulse. The pause interval is determined based on the width of the torque pulse such that a wider torque pulse results in a wider pause interval and a narrower torque pulse results in a shorter pause interval.

Abstract: A clamping tool is provided comprising a body, containing control circuits and electronic processing circuitry and having, at one end, a handle for gripping by an operator making the clamping, and on the other end, an arm. The arm comprises, at its free end, a seat that can be alternatively pluggable to a plurality of inserts suitable for engaging the tool with a corresponding type and/or dimension of a mechanical member on which the tool is configured to operate to perform a clamping operation. Sensor means are provided on the arm for detecting tightening conditions exerted on the mechanical member. Furthermore, a microprocessor electronic card is provided on the are for receiving analogic signals from the sensor means, converting the signals into digital format, and handling transfer of the signals in digital format to the electronic processing circuitry.

Abstract: The present specification relates to a power tool comprising an input shaft and an output shaft and a two-speed power transmission comprising a planetary gear and a gear shift assembly for directing torque through or past the planetary gear comprising a driving member, a driven member and an axially movable coupling sleeve arranged to intercouple in a first position the driving member and the driven member and to intercouple in a second position the planetary gear and the driven member. A linear actuator is arranged to displace the coupling sleeve between the first and second position, wherein the linear actuator comprises a linearly movable push bar arranged for displacing the coupling sleeve. The present specification also relates to a method in and a two-speed power transmission for such a power tool.