Atlas Copco Tools AB Patent applications |
Patent application number | Title | Published |
20120275871 | PNEUMATIC ADE-MACHINES - An improved pneumatic ADE-machine with a built-in logic has a clutch in the power transmission chain between a first drive gear and a second driven gear. The clutch includes two clutch parts (D, F), whereof a first part (D) is axially biased by a spring (C). Movable elements (E) are arranged between the clutch parts, which transfer the rotation from the first to the second clutch part, and an actuator (H) is arranged in connection with the first spring biased clutch part (D). When a feed force on a drill during drilling exceeds the biasing force of the spring, the movable elements displace the spring biased clutch part axially, which triggers the actuator (H) to send a corresponding signal to the machine logic. | 11-01-2012 |
20120039736 | PNEUMATIC MOTOR UNIT WITH INTEGRATED VOLTAGE GENERATING MEANS - A pneumatic motor unit includes a housing with an air inlet passage, an exhaust air outlet passage, and a rotation motor which generates a pulsating exhaust air outlet flow. The motor unit further includes a voltage depending device which communicates signals in response to at least one of an actual motor condition and operation parameter values, and a voltage generating section which is connected to the voltage depending device and which includes a piezoelectric element provided in the exhaust air outlet passage and arranged to be activated by pressure pulses of the pulsating exhaust air outlet flow from the motor. The piezoelectric element is tongue shaped and rigidly secured at one end, and is arranged to be swung in a two-way movement relative to a central rest position to thereby generate an alternating current voltage. | 02-16-2012 |
20120024557 | PNEUMATIC POWER WRENCH WITH AN EXHAUST AIR OUTLET UNIT - A portable pneumatic power wrench has a housing with a handle, a motor, a pressure air inlet passage, and an outlet passage for ducting exhaust air from the motor out of the housing. An outlet unit is connected to the outlet passage and has a first outlet opening section forming a main exhaust air flow path, a second outlet opening section forming an additional exhaust air flow path, and a manually operable valve arranged to control the additional exhaust air flow path by opening or closing the second outlet opening section. The total outlet flow area of the main exhaust air flow path and the additional exhaust air flow path gives an augmented torque output of the power wrench. | 02-02-2012 |
20120017686 | METHOD AND DEVICE FOR ULTRASONIC MEASUREMENTS - An ultrasonic measurement device and method in which an ultrasonic transducer is acoustically coupled to an object to be measured by a resilient material contact layer. The transducer transmits a plurality of consecutive ultrasonic transmit signals into the object being measured, the transmit frequency of each of the plurality of transmit signals being distinct from the frequency of the other transmit signals of the plurality of transmit signals. Signal echoes of the transmitted signals are received, and based on the received signal echoes, at least one transmit frequency to be used for ultrasonic measurement of the object is selected. | 01-26-2012 |
20110293457 | PNEUMATIC VANE MOTOR - A pneumatic vane motor comprising a housing ( | 12-01-2011 |
20110259619 | PORTABLE POWER WRENCH WITH A MANUALLY OPERATED POWER CONTROL MEANS - A portable power wrench of an angle type includes an elongated housing with an angle drive head and a rear handle and supports a motor. The power wrench also includes a manually operated power control device including a main power control trigger located at the rear handle and an auxiliary power control trigger located at the angle drive head. The motor as well as the main trigger and the auxiliary power control trigger are connected to a programmable control unit in which there are stored operation parameter sets suitable for a screw joint running down phase and a final tightening phase, respectively. The auxiliary power control trigger is arranged to activate the running down parameter set only, whereas the main power control trigger is arranged to activate the final tightening parameter set. | 10-27-2011 |
20110255930 | DRILL SPINDLE UNIT - A drill spindle unit includes a housing, and a rotatable and longitudinally displaceable drill spindle provided with axial keyways for cooperation with internal projections of a drill spindle surrounding rotation drive sleeve, and a screw thread for cooperation with an internal thread of a drill spindle surrounding feed drive sleeve. Bearings for radial as well as axial support of the drill spindle relative to the housing are provided. The radial support bearings are arranged to transfer radial forces only, and a thrust bearing is arranged to transfer axial forces between the housing and the drill spindle. The thrust bearing is associated with an axial load sensing device by which signals are generated in response to the axial load applied on the drill spindle. | 10-20-2011 |
20110236180 | GAS DRIVEN ROTATION MOTOR, A TOOL PROVIDED WITH A GAS DRIVEN ROTATION MOTOR AND A METHOD FOR REGULATING SPEED OF A GAS DRIVEN ROTATION MOTOR - A gas driven motor includes a housing, a gas driven rotating member including a rotor and a rotor shaft carrying the rotor and journalled in a first bearing and a second bearing supported in the housing, and a speed governor for controlling a pressure gas inlet flow in response to the rotation speed of the rotating member. The first bearing includes a set of rolling elements, an outer race arranged in the housing and an inner race arranged on a shaft portion of the rotating member, the set of rolling elements being in contact with the races on which the rolling elements roll. The motor further includes a coupling device arranged to couple the speed governor to the rolling elements of the first bearing, thereby transferring the rotary motion from the rolling elements to the speed governor. | 09-29-2011 |
20110236144 | DRILLING UNIT WITH AUTOMATIC DRILL SHAFT FEEDING, AND METHOD AND MEANS THERETO - A drilling unit with automatic drill shaft feeding is provided. The feeding velocity can be changed by external mounting of exchangeable gearing cassettes having a desired gear ratio. | 09-29-2011 |
20110214890 | METHOD AND DEVICE FOR POSITION LOCKED POWER TOOL OPERATION FOR CORRECTION OF UNACCEPTABLE SCREW JOINT TIGHTENING RESULTS - A method and a device are provided for locking the operation of a power wrench to the location of an unacceptably tightened screw joint or object with a sensor for at least one tightening parameter. A position sensing system is provided for indicating continuously the position of the power wrench during tightening operations, and a control unit includes a unit for comparing obtained tightening parameter values with predetermined limit values and to provide an OK or a NOK signal in response to those limit values being passed or not for each screw joint. A locking device is provided to lock the power wrench operation to the very position of the screw joint or the object for which a NOK signal has been issued until the unacceptably tightened screw joint has been attended to and the NOK signal is removed. | 09-08-2011 |
20110107881 | PNEUMATIC IMPULSE WRENCH WITH OPERATION CONTROL MEANS - A pneumatic impulse wrench for tightening screw joints includes a housing with a pressure air inlet passage, an exhaust air outlet passage, a rotation motor, a hydraulic impulse generator, and is connected to a stationary programmable control unit. The impulse wrench also includes a torque indicating mechanism connected to the control unit for feeding back electric signals responsive to the output torque of the wrench, an electromagnetically activated inlet valve arranged in the air inlet passage, and an electromagnetically activated exhaust valve which controls the exhaust air flow from the motor. The exhaust valve is a proportional valve activated by a linearly operated electromagnetic actuator and arranged to continuously adapt the exhaust air flow and, hence, the motor power to the characteristics of the actual screw joint being tightened in response to feed back signals from the torque indicating mechanism and in accordance with a programmed tightening strategy. | 05-12-2011 |
20110091295 | PORTABLE POWER DRILL WITH DRILLING IMPLEMENT ROTATING AND FEEDING MEANS - A portable power drill comprises a housing, a drilling implement carrying drive spindle, and two individually powered and controlled motors for rotating and axially feeding the drive spindle. The drive spindle is rotative and axially displaceable relative to the housing and connected to the drive and feed motors via angle gears including two bevel gears supported on the drive spindle. The feed via an axially locked but rotative nut piece and an external thread on the drive spindle, whereas the drive motor is drivingly connected to the drive spindle via longitudinal keyways on the drive spindle and mating splines in one of the bevel gears. The drive motor and the feed motor are electric motors controlled and monitored by a programmable control unit. | 04-21-2011 |
20110079406 | METHOD AND DEVICE FOR TIGHTENING JOINTS - An electric assembly device for tightening of fastener includes a housing and a rotation motor which is drivingly connected to an output shaft. The output shaft has a forward portion extending out of the housing, and is adapted to carry a coupling device for releasable coupling with a fastener during tightening, which is to be performed along a first rotation axis. The device is adapted to determine an angular displacement of the housing with respect to the first rotation axis during tightening of the fastener, and to control the rotation speed of the motor during tightening based on the determined angular displacement of the housing. | 04-07-2011 |
20110064532 | PORTABLE POWER DRILL WITH DRILLING IMPLEMENT ROTATING AND FEEDING MEANS - A portable power drill includes a housing, a drilling implement carrying drive spindle, and a drive motor for rotating and axially feeding the drive spindle. The drive spindle is rotatively and axially displaceable relative to the housing and connected to the drive motor via angle gears, a feed mechanism and two bevel gears supported on the drive spindle. The drive motor is drivingly connected to the drive spindle via a belt drive transmission, a feed shaft, and an angle gear including an axially locked but rotative nut piece. The feed shaft is located in parallel with and coupled to the drive motor via a transmission and drivingly connected to said nut piece. The drive motor is an electric motor controlled and monitored by a programmable control unit. | 03-17-2011 |
20100275747 | POWER TOOL AND A METHOD FOR USE OF THE POWER TOOL - A power tool includes an electric motor including a rotor and a stator, a torque sensor for measuring the torque value during tightening of rotatable fastening elements, and an operation control unit, integrated in or in communication with the power tool. The power tool has a device for preventing rotation of the rotor. A method for tightening rotatable fastening elements by use of the power tool is also disclosed. | 11-04-2010 |
20100206598 | REGULATOR FOR A POWER TOOL - A regulator for a power tool for tightening a fastener in order to unite two or more pieces into a joint. The regulator regulates the power tool when tightening the fastener such that the fastener is tightened to a predetermined target. The regulator calculates an output signal to the power tool, which output signal is based on the product of the torque exerted by the power tool on the fastener and the angle for turning the fastener about its axis. The output signal is used for tightening the fastener to the predetermined target. The regulator is also applicable to a power tool for a rivet joint. | 08-19-2010 |
20100107824 | POWER WRENCH WITH SWIVELLING GEAR CASING - A power wrench including a housing, a rotation motor, a reduction gearing connecting the motor to an output shaft, and a separate gearing casing which is rotatively and detachably mounted on the housing and supporting the output shaft. The reduction gearing is divided into a first gearing stage located in the housing and a second gearing stage located in the separate gearing casing. The first gearing stage and the second gearing stage are interconnected via an intermediate spindle, and the motor is connected to the first gearing stage via a hollow drive shaft surrounding the intermediate spindle and an angle gear. A torque sensor is associated with the first gearing stage in the form of strain gauges mounted on an elastically deformable sleeve connecting a ring gear of the first gearing stage to the housing. | 05-06-2010 |
20100096151 | PORTABLE POWER TOOL WITH WIRELESS COMMUNICATION WITH A STATIONARY CONTROL UNIT - A portable power tool, wirelessly communicates with a stationary process control unit for exchange of operation parameter values, includes a housing with a battery powered motor connected to an output shaft, an on-board operation controller, and a wireless communication device in the form of a communication module. The communication module is received in a docking portion on the housing, and the docking portion and the communication module have matching electrical connectors. The communication module is one of a number of exchangeable communication modules all having identical electrical connectors for co-operation with the connection of the docking portion but which include communication devices for wireless communication according to different communication systems. | 04-22-2010 |
20100032179 | POWER TOOL WITH EXCHANGEABLE REDUCTION GEARING UNIT - A power tool includes a power unit with a rotation motor, and a reduction gearing, wherein the reduction gearing includes a set of interchangeable gearing units attachable one at a time to the power unit and having different operational characteristics including different total gear ratio and torque capacity. Each gearing unit has an electronic identification device programmed with data specific for each gearing unit, such as total gear ratio, torque range, and relating to compatibility of the gearing unit with a certain power unit. The power unit includes an electronic operation control unit programmed with a number of different operation parameter sets each intended for a specific one of the gearing units, and a circuit for communicating with a gearing unit attached to the power unit to determine whether there is compatibility and which parameter set is applicable. | 02-11-2010 |
20100018746 | MULTI CONDUCTOR CABLE FOR A PORTABLE ELECTRIC TOOL - A multi conductor flat type cable, which is intended for connecting a portable electric power tool to a stationary power supply and operation control unit, has a connector plug ( | 01-28-2010 |
20090126960 | Portable Power Tool with Drive Shaft Lock Means - A portable power tool with a rotation motor ( | 05-21-2009 |
20090120248 | Torque Responsive Release Clutch for a Power Nutrunner - A torque responsive release clutch intended for a power nutrunner and comprises a driving clutch half ( | 05-14-2009 |
20090101380 | Portable Power Tool with Double Freewheel Drive Shaft Lock - A portable power tool with a rotation motor ( | 04-23-2009 |
20090016918 | PNEUMATIC VANE MOTOR WITH BY- PASS MEANS - A pneumatic vane motor with a stator cylinder having an air inlet opening and an air outlet opening, a rotor eccentrically journalled in the cylinder and carrying a number of sliding vanes which divide the cylinder into moving cells, wherein the cylinder comprises a by-pass passage located between the air inlet opening and the air outlet opening and arranged to leak air from a pressurized working cell into a preceding cell before the working cell reaches the outlet opening, thereby using a preceding cell as an expansion volume for sound attenuation. | 01-15-2009 |