EP3578314A1 - Appareil de pose - Google Patents

Appareil de pose Download PDF

Info

Publication number
EP3578314A1
EP3578314A1 EP18176199.0A EP18176199A EP3578314A1 EP 3578314 A1 EP3578314 A1 EP 3578314A1 EP 18176199 A EP18176199 A EP 18176199A EP 3578314 A1 EP3578314 A1 EP 3578314A1
Authority
EP
European Patent Office
Prior art keywords
cooling channel
setting
capacitor
setting tool
driving element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18176199.0A
Other languages
German (de)
English (en)
Inventor
Tilo Dittrich
Emanuel Kurth
Chafic Abu Antoun
Peter Roth
Thomas Sperrfechter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP18176199.0A priority Critical patent/EP3578314A1/fr
Priority to PCT/EP2019/063927 priority patent/WO2019233844A1/fr
Priority to TW108119412A priority patent/TW202000393A/zh
Publication of EP3578314A1 publication Critical patent/EP3578314A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • the present invention relates to a setting device for driving fasteners into a substrate.
  • Such setting tools usually have a receptacle for a fastening element, from which a fastener received therein is conveyed along a setting axis into the ground.
  • a driving element is for this purpose driven by a drive along the setting axis to the fastener.
  • the drive has an electrical capacitor and a coil.
  • the capacitor is discharged via the coil, whereby a Lorentz force acts on the driving element, so that the driving element is moved towards a nail.
  • the object of the present invention is to provide a setting device of the aforementioned type, in which a high efficiency and / or a good setting quality is ensured.
  • a setting tool for driving fasteners into a substrate comprising a receptacle, which is intended to receive a fastener, a driving element, which is intended to convey a recorded in the receiving fastener along a setting axis in the ground a drive, which is provided for driving the driving element along the setting axis on the fastening element, wherein the drive comprises an electrical capacitor, arranged on the driving element squirrel cage and an excitation coil, which in a rapid discharge of the capacitor with Current is flowed through and generates a magnetic field which accelerates the driving element to the fastening element, and wherein the setting device has a cooling channel for a flowing cooling medium and a means for generating a cooling medium flow through the cooling channel.
  • the guided cooling medium flow ensures effective cooling of the exciter coil. As a result, more driving operations are possible before the excitation coil and / or other components of the setting device overheat. In addition, a rise in an ohmic resistance of the excitation coil associated with a temperature increase and an associated drop in the efficiency of the drive are reduced or avoided.
  • the setting tool is preferably handheld used. Alternatively, the setting device can be used stationary or semi-stationary.
  • a limitation of the cooling channel is preferably made of an electrically insulating material, such as ceramic.
  • a capacitor in the sense of the invention is to be understood as meaning an electrical component which stores electrical charge and the energy associated therewith in an electric field.
  • a capacitor has two electrically conductive electrodes, between which the electric field builds up when the electrodes are electrically charged differently.
  • a fastener according to the invention for example, a nail, a pin, a clip, a clip, a bolt, in particular threaded bolt or the like to understand.
  • an advantageous embodiment is characterized in that the excitation coil is adjacent to the cooling channel.
  • the excitation coil is preferably arranged in the cooling channel.
  • the cooling channel passes through the exciter coil.
  • the exciter coil has at least one turn of a tubular electrical conductor, wherein the cooling channel passes through the electrical conductor.
  • the setting device has a frame which surrounds the exciter coil.
  • the frame consists of a soft magnetic material.
  • the frame adjoins the cooling channel.
  • the cooling channel leads through the frame.
  • An advantageous embodiment is characterized in that the capacitor is adjacent to the cooling channel.
  • An advantageous embodiment is characterized in that the drive comprises a switching circuit, by means of which the rapid discharge is triggered, wherein the circuit circuit adjacent to the cooling channel.
  • An advantageous embodiment is characterized in that the driving element is adjacent to the cooling channel.
  • the squirrel-cage rotor preferably adjoins the cooling channel.
  • the cooling channel leads through the driving element or the squirrel-cage rotor.
  • An advantageous embodiment is characterized in that the means for generating a cooling medium flow through the cooling channel comprises the driving element, wherein during a movement of the driving element on the fastening element to a dynamic pressure before the driving element and / or a suction pressure behind the driving element generates the cooling medium flow.
  • the means for generating a cooling medium flow through the cooling channel comprises a rotor conveying a cooling medium and a motor, wherein a rotation axis of the motor and / or the rotor is parallel to the setting axis.
  • the engine is an electric motor.
  • An advantageous embodiment is characterized in that the cooling channel has cooling ribs.
  • the setting device comprises a control unit and a means for detecting a temperature of an environment and / or the setting device, preferably the exciter coil, and wherein the control unit is provided, a cooling medium flow through the cooling channel in dependence on the to control the detected temperature.
  • a flow rate of the cooling medium flow through the cooling channel is higher, the higher the detected temperature.
  • the control unit is provided to set a running time and / or speed of the means for generating a cooling medium flow through the cooling passage in dependence on the detected temperature.
  • the cooling channel on a controllable valve, wherein the control unit is provided to control the valve in dependence on the detected temperature.
  • cooling medium is a gas, preferably ambient air.
  • cooling medium is a liquid.
  • the liquid is a ferrofluid or a magnetorheological fluid.
  • Fig. 1 is a hand-held setting tool 10 for driving fasteners shown in a background, not shown.
  • the setting tool 10 has a receptacle 20 designed as a pin guide, in which a fastening element 30 embodied as a nail is received in order to be driven into the underground along a setting axis A (in FIG Fig. 1 to the left).
  • the setting device 10 comprises a magazine 40 in which the fastening elements are accommodated individually or in the form of a fastener element strip 50 and are transported gradually into the receptacle 20.
  • the magazine 40 has for this purpose an unspecified spring-loaded feed element.
  • the setting device 10 has a drive-in element 60, which comprises a piston plate 70 and a piston rod 80.
  • the driving-in element 60 is intended to transport the fastening element 30 out of the receptacle 20 along the setting axis A into the ground.
  • the driving element 60 is guided with its piston plate 70 in a guide cylinder 95 along the setting axis A.
  • the driving element 60 in turn is driven by a drive which comprises a squirrel cage 90 arranged on the piston plate 70, an excitation coil 100, a soft magnetic frame 105, a circuit 200 and a capacitor 300 with an internal resistance of 5 mOhm.
  • the short-circuit rotor 90 consists of a preferably annular, particularly preferably annular element with a low electrical resistance, for example of copper, and is on the of the receptacle 20th opposite side of the piston plate 70 attached to the piston plate 70, for example, soldered, welded, glued, clamped or positively connected.
  • the piston plate itself is designed as a squirrel-cage rotor.
  • the circuit 200 is intended to cause a rapid electrical discharge of the previously charged capacitor 300 and to guide the discharge current flowing through it through the excitation coil 100, which is embedded in the frame 105.
  • the frame preferably has a saturation flux density of at least 1.0 T and / or an effective specific electric conductivity of at most 10 6 S / m, so that a magnetic field generated by the exciting coil 100 is amplified by the frame 105 and suppress eddy currents in the frame 105 become.
  • This developing and thus changing secondary current in turn generates a secondary magnetic field, which is opposite to the excitation magnetic field, whereby the squirrel cage rotor 90 experiences a repelling of the excitation coil 100 Lorentz force which drives the driving element 60 on the receptacle 20 and the fastener 30 received therein ,
  • the setting tool 10 further comprises a housing 110, in which the drive is received, a handle 120 with a designed as a trigger actuator 130, designed as a battery electric energy storage 140, a control unit 150, a trigger switch 160, a pressure switch 170, as an means for detecting a temperature of the exciter coil 100 and electrical connection lines 141, 161, 171, 181, 201, 301, which are formed by the temperature sensor 180 and which contain the control unit 150 with the electrical energy store 140, the trigger switch 160, the contact pressure switch 170, the temperature sensor 180, the circuit 200 and the capacitor 300 connect.
  • the setting tool 10 is supplied instead of the electrical energy storage 140 or in addition to the electrical energy storage 140 by means of a power cable with electrical energy.
  • the control unit comprises electronic components, preferably interconnected on a circuit board to one or more control circuits, in particular one or more microprocessors.
  • the control unit 150 initiates a capacitor charging process, in which electrical energy is conducted by means of the connecting line 141 from the electrical energy storage 140 to the control unit 150 and by means of the connecting lines 301 from the control unit 150 to the capacitor 300 to charge the capacitor 300 ,
  • the control unit 150 comprises a switching converter (not designated in more detail) which converts the electric current from the electrical energy store 140 into a suitable charging current for the capacitor 300.
  • the control unit initiates the capacitor charging process already when the setting device is switched on or when the setting device is lifted off the ground or at the end of a preceding driving operation.
  • the actuating element 130 If the actuating element 130 is actuated when the setting tool 10 is ready for setting, for example by pulling with the index finger of the hand, which encompasses the handle 120, the actuating element 130 actuates the trigger switch 160, which thereby transmits a triggering signal to the control unit 150 via the connecting line 161. From this, the control unit 150 initiates a capacitor discharging operation in which electrical energy stored in the capacitor 300 is conducted from the capacitor 300 to the exciting coil 100 by means of the switching circuit 200 by discharging the capacitor 300.
  • the in Fig. 1 Schematically illustrated circuit 200 for this purpose comprises two discharge lines 210, 220 which connect the capacitor 300 to the excitation coil 200 and of which at least one discharge line 210 is interrupted by a normally open discharge switch 230.
  • the circuit 200 forms an electrical resonant circuit with the exciter coil 100 and the capacitor 300. A swinging back and forth of this resonant circuit and / or a negative charging of the capacitor 300 may have a negative effect on an efficiency of the drive, but can be with the help a freewheeling diode 240 prevent.
  • the discharge lines 210, 220 are electrically connected by means of one of the receptacle 20 facing the end face 360 of the capacitor 300 electrical contacts 370, 380 of the capacitor 300, each with an electrode 310, 320 of the capacitor 300, for example by soldering, welding, screwing, jamming or form-fitting.
  • the discharge switch 230 is preferably suitable for switching a discharge current with high current and is designed, for example, as a thyristor.
  • the discharge lines 210, 220 have a small distance from one another, so that a parasitic magnetic field induced by them is as small as possible.
  • the discharge lines 210, 220 are combined into a bus bar and held together by a suitable means, for example a holder or a clamp.
  • the freewheeling diode is electrically connected in parallel to the discharge switch. In further embodiments, not shown, no free-wheeling diode is provided in the circuit.
  • the control unit 150 closes the discharge switch 230 by means of the connection line 201, whereby a discharge current of the capacitor 300 flows through the exciter coil 100 with high current intensity.
  • the rapidly increasing discharge current induces a field magnetic field, which passes through the squirrel-cage rotor 90 and induces in its squirrel-cage rotor 90, in turn, an annular secondary electric current.
  • This secondary current that builds up in turn generates a secondary magnetic field which is opposite to the excitation magnetic field, whereby the squirrel cage rotor 90 experiences a Lorentz force repelling the exciting coil 100, which drives the driving element 60 onto the receptacle 20 and the fastening element 30 received therein.
  • the fastening element 30 is driven by the driving element 60 into the ground. Excess kinetic energy of the driving element 60 is absorbed by a braking element 85 made of a resilient and / or damping material, such as rubber, by the driving element 60 moves with the piston plate 70 against the brake member 85 and is braked by this to a standstill. Thereafter, the driving-in element 60 is returned to the setting position by an unspecified return device.
  • a braking element 85 made of a resilient and / or damping material, such as rubber
  • the capacitor 300 in particular its center of gravity, is arranged on the setting axis A behind the driving element 60, whereas the receptacle 20 is arranged in front of the driving element 60. With respect to the setting axis A, the capacitor 300 is therefore axially offset the driving-in element 60 and arranged radially overlapping with the driving-in element 60.
  • a short length of the discharge lines 210, 220 can be realized, as a result of which the resistances thereof can be reduced and thus an efficiency of the drive can be increased.
  • a small distance of a center of gravity of the setting device 10 to the setting axis A can be realized. As a result, tilting moments during a recoil of the setting device 10 during a driving operation are low.
  • the capacitor is arranged around the driving element around.
  • the electrodes 310, 320 are arranged on opposite sides on a carrier film 330 wound around a winding axis, for example by metallization of the carrier film 330, in particular vapor-deposited, the winding axis coinciding with the setting axis A.
  • the carrier foil with the electrodes is wound around the winding axis so that a passage remains along the winding axis.
  • the capacitor is arranged for example around the setting axis.
  • the carrier foil 330 has a foil thickness of between 2.5 ⁇ m and 4.8 ⁇ m for a charging voltage of the capacitor 300 of 1500 V, and a foil thickness of, for example, 9.6 ⁇ m for a charging voltage of the capacitor 300 of 3000 V.
  • the carrier film is in turn composed of two or more individual films stacked on top of each other.
  • the electrodes 310, 320 have a sheet resistance of 50 ohm / ⁇ .
  • a surface of the capacitor 300 has the shape of a cylinder, in particular a circular cylinder whose cylinder axis coincides with the setting axis A.
  • a height of this cylinder in the direction of the winding axis is substantially as large as its diameter measured perpendicular to the winding axis.
  • a low internal resistance of the capacitor 300 is also achieved by a large cross-section of the electrodes 310, 320, in particular by a high layer thickness of the electrodes 310, 320, wherein the effects of the layer thickness on a self-healing effect and / or a lifetime of the capacitor 300 are to be considered.
  • the capacitor 300 is damped by means of a damping element 350 mounted on the other setting tool 10.
  • the damping element 350 damps movements of the capacitor 300 relative to the rest of the setting device 10 along the setting axis A.
  • the damping element 350 is arranged on the end face 360 of the capacitor 300 and completely covers the end face 360.
  • the individual windings of the carrier film 330 are uniformly loaded by a recoil of the setting device 10.
  • the electrical contacts 370, 380 protrude from the end face 360 and penetrate the damping element 350.
  • the damping element 350 has for this purpose in each case an exemption, through which the electrical contacts 370, 380 protrude.
  • the connecting lines 301 have to compensate for relative movements between the capacitor 300 and the other setting tool 10 each have a discharge and / or expansion loop, not shown.
  • a further damping element is arranged on the capacitor, for example on its end facing away from the receptacle end face.
  • the capacitor is then clamped between two damping elements, that is, the damping elements are applied to the capacitor with a bias voltage.
  • the connecting lines have a rigidity which decreases continuously with increasing distance from the capacitor.
  • FIG. 2 is an electrical circuit diagram 400 of a not shown setting device for driving fasteners in a substrate, not shown.
  • the setting device has a housing, not shown, a handle, not shown, with an actuating element, a receptacle, not shown, a magazine, not shown, a not shown driving-in element and a drive for the driving element on.
  • the drive comprises a not shown, arranged on the driving element squirrel cage, an exciter coil 410, a soft magnetic frame, not shown, a circuit 420, a capacitor 430, an accumulator designed as an electric energy storage 440 and a control unit 450 with a DC as DC, for example
  • the switching converter 451 has a low-voltage side U LV electrically connected to the electrical energy store 440 and a high-voltage side U HV electrically connected to the capacitor 430.
  • the circuit 420 is provided to cause a rapid electrical discharge of the previously charged capacitor 430 and to guide the discharging current flowing through the exciter coil 410.
  • the circuit 420 comprises for this purpose two discharge lines 421, 422 which connect the capacitor 430 to the excitation coil 420 and of which at least one discharge line 421 is interrupted by a normally open discharge switch 423.
  • a freewheeling diode 424 prevents excessive oscillation of a resonant circuit formed by the switching circuit 420 with the exciter coil 410 and the capacitor 430, as well as a negative charge of the capacitor 430.
  • the control unit 450 When the setting tool is pressed against the ground, the control unit 450 initiates a capacitor charging process in which electrical energy is conducted from the electrical energy storage 440 to the switching converter 451 of the control unit 450 and from the switching converter 451 to the capacitor 430, around the capacitor 430 charge.
  • the switching converter 451 converts the electric current from the electrical energy store 440 at an electrical voltage of, for example, 22 V into a suitable charging current for the capacitor 430 at an electrical voltage of 1500 V, for example.
  • the control unit 450 initiates a capacitor discharge, in which electrical energy stored in the capacitor 430 is conducted by the circuit 420 from the capacitor 430 to the field coil 410 by discharging the capacitor 430.
  • the control unit 450 closes the discharge switch 423, whereby a discharge current of the high-current capacitor 430 flows through the exciting coil 410.
  • the squirrel-cage rotor not shown, experiences a Lorentz force repelling the excitation coil 410, which drives the drive-in element. Thereafter, the driving element is returned by a return device, not shown, in a set ready position.
  • An amount of energy of the current flowing through the excitation coil 410 during rapid discharge of the capacitor 430 is controlled in particular steplessly by the control unit 450 by setting a charging voltage (U HV ) applied to the capacitor 430 during and / or at the end of the capacitor charging process and before the rapid discharge becomes.
  • U HV charging voltage
  • a stored in the charged capacitor 430 electrical energy and thus the amount of energy flowing through the exciter coil 410 in the rapid discharge of the capacitor 430 current are proportional to the charging voltage and thus controllable by means of the charging voltage.
  • the capacitor is charged during the capacitor charging process until the charging voltage U HV has reached a desired value. Then the charging current is switched off. If the charging voltage before fast discharge decreases, for example, by parasitic effects, the charging current is switched on again until the charging voltage U HV has reached the target value again.
  • the control unit 450 controls the amount of energy of the current flowing through the excitation coil 410 in the rapid discharge of the capacitor 430 as a function of a plurality of control variables.
  • the setting tool comprises a as the excitation coil 410 arranged temperature sensor 460 formed means for detecting a temperature of the exciting coil 410 and a means for detecting a capacitance of the capacitor, which is formed for example as a calculation program 470 and the capacitance of the capacitor of a course of a current and an electric voltage of the charging current during the capacitor charging process calculated.
  • the setting tool comprises a means configured as an acceleration sensor 480 for detecting a mechanical load variable of the setting device.
  • the setting device comprises a means for detecting a Einitatiiefe of the fastener in the ground, which includes an example, optical, capacitive or inductive proximity sensor 490, which comprises a reversing position of the drive element, not shown.
  • the setting device comprises a means for detecting a speed of the driving element, which comprises a first proximity sensor 500 formed means for detecting a first time at which the driving member passes during its movement on the fastener to a first position, formed as a second approach sensor 510 means for detecting a second time at which the driving element passes to a second position during its movement on the fastener, and a means configured as a calculation program 520 for detecting a time difference between the first time and the second time.
  • the setting device comprises a user-adjustable control element 530 and a barcode reader 540 designed as means for detecting a characteristic of a fastener element to be driven.
  • the control variables in dependence of which the control unit 450 controls the energy amount of the current flowing through the excitation coil 410 during the rapid discharge of the capacitor 430, include the temperature detected by the temperature sensor 460 and / or the capacity of the capacitor calculated by the calculation program 470 and / or the loader size detected by the accelerometer 480 and / or the fastener driving depth detected by the proximity sensor 490 and / or the speed of the driver element calculated by the calculator 520; and / or the user set setting of the operating element 530 and / or the bar code Reader 540 recorded characteristic of the fastener.
  • the setting device preferably the control unit 450, comprises means 550 for detecting a temperature of the exciting coil.
  • the means 550 in one embodiment, is a program that processes a signal that the control unit 450 receives from the temperature sensor 460.
  • the means 550 comprises a means for detecting an ohmic Resistance of the excitation coil, which has a signal generator and a voltmeter.
  • the signal generator generates a measuring current flowing through the exciter coil 410, and the voltmeter measures an electrical voltage drop across the exciter coil 410.
  • a calculation program calculates the ohmic resistance of the exciting coil 410 from the measuring current and the voltage dropped across the exciting coil 410.
  • the means 550 then calculates a difference from the thus-obtained ohmic resistance of the exciting coil 410 and a reference resistor which, in the same manner, after a long time without Setting operation, ie at ambient temperature was detected. The means 550 finally calculates the temperature of the exciting coil 410 from this difference.
  • the means 550 comprises a time-detecting means configured as a timer, means for detecting a driving operation as a data receiver which causes a temperature rise of the exciting coil, a data memory in which a standard cooling rate of the exciting coil and the The temperature increase caused by the operation is stored, and a program for calculating the temperature of the exciting coil 410.
  • the driving-in detecting means is formed as an information receiver which receives information from the control unit 450 about a driving operation started by the control unit 450.
  • the temperature of the exciting coil 410 is calculated as follows. After prolonged disuse of the setting device, a device electronics of the setting device is woken up by operating a main switch, a pressure switch, a trigger switch or a motion sensor.
  • the program for calculating the temperature of the exciting coil 410 then reads in a starting temperature detected by the temperature sensor 460 or an ambient temperature sensor as the actual temperature.
  • the timer is started.
  • the temperature rise stored in the data memory is added to the actual temperature and the sum is stored as a new actual temperature.
  • a difference is first made between a difference between the actual temperature and the ambient temperature detected by the ambient temperature sensor and the time recorded by the timer, which has elapsed since the last driving operation, using the standard cooling rate stored in the data memory Temperature drop calculated. Then the temperature drop is subtracted from the actual temperature and the temperature increase stored in the data memory is added and the sum stored as a new actual temperature.
  • the timer is set to zero and the electronics of the setting device in one Sleep mode offset or disabled.
  • the ambient temperature sensor is preferably arranged on a board of the electronics, for example the control unit 450.
  • the setting device has a means 560 for cooling the excitation coil 410, which comprises a rotor and is designed for example as a fan or circulation pump for a cooling liquid.
  • the control unit 450 is provided to control the means 560 for cooling the excitation coil 410, for example a running time and / or rotational speed of the rotor, as a function of the detected temperature of the exciter coil 410.
  • an increased cooling rate of the excitation coil 410 is stored in the data memory, and the program for calculating the temperature of the excitation coil 410 during periods in which the means 560 for cooling the excitation coil 410 is not in operation uses the standard cooling rate and in periods where the means 560 is in operation, the increased cooling rate is used.
  • an excitation coil 600 is shown in a longitudinal section.
  • the excitation coil 600 comprises an electrical conductor, preferably made of copper, with a circular cross-section, for example, which is wound in several turns 610 about a setting axis A 2 .
  • the exciter coil has a substantially cylindrical, in particular circular cylindrical outer shape with an outer diameter R a and a coil length L Sp in the direction of the setting axis A 2 .
  • the exciter coil 600 In a radially inner region relative to the setting axis A 2 , the exciter coil 600 has a free space 620, which is preferably likewise cylindrical, in particular circular-cylindrical, and defines an inner diameter R i of the excitation coil.
  • a temperature sensor 660 means for detecting a temperature of Exciter coil 600 is arranged and thermally conductively connected to the exciter coil 600, for example by means of a thermal paste.
  • the temperature sensor is arranged on an inner circumference or outer circumference of the exciter coil.
  • Fig. 4 is a setting tool 700 for driving fasteners, not shown in a non-illustrated substrate shown in a schematic longitudinal section.
  • the setting device 700 has a driving-in element 706, which comprises a piston plate 707 and a piston rod 708.
  • the driving-in element 706 is intended to convey a fastening element along an unspecified setting axis into the ground.
  • the driving element 706 is guided with its piston plate 707 in a guide cylinder, not shown, along the setting axis.
  • the driving element 706 is in turn driven by a drive which comprises an annular short-circuit rotor 709 arranged on the piston plate 707, an excitation coil 710, a soft-magnetic frame 705 and a capacitor (not shown).
  • the squirrel cage 709 is attached to the piston plate 707.
  • the exciter coil 710 is embedded in the frame 705 so that the frame 705 surrounds the excitation coil 710 at least circumferentially.
  • the setting device 700 has a cooling channel 711 for a flowing cooling medium and designed as a fan 712 means for generating a cooling medium flow through the cooling channel 711, which attenuated by means of one or more not shown damping elements in the setting device, in particular on a housing not shown in detail of the setting device 700 is stored.
  • the cooling medium is a liquid, preferably a ferrofluid, which supports the soft magnetic effect of the frame 705.
  • the fan 712 has a rotor designed as a fan 713, which is driven by an electric motor, not shown. An axis of rotation of the motor and the fan 713 is oriented parallel to the setting axis.
  • the frame 705 adjoins the cooling channel 711, so that cooling medium conveyed by the fan through the cooling channel 711 flows over an outer surface of the frame 705. Thereby, the frame 705 and thus indirectly the exciting coil 710 is cooled.
  • the fan 712 has a rotor designed as a fan 713, which is driven by an electric motor, not
  • the setting device further comprises a control unit, not shown, and a not shown, designed as a temperature sensor means for detecting a temperature of an environment or of the setting device, such as the excitation coil.
  • the control unit controls a cooling medium flow through the cooling channel 711 as a function of the detected temperature.
  • the control unit is provided to adjust a running time and / or speed of the motor of the fan in dependence on the detected temperature, preferably the higher the detected temperature, the higher.
  • the cooling channel has a controllable valve, which is controlled by the control unit in dependence on the detected temperature.
  • Fig. 5 is a setting device 720 with a driving element 726, which comprises a piston plate 727 and a piston rod 728, a drive which comprises a squirrel cage 729, an exciting coil 730, a soft magnetic frame 725 and a capacitor, not shown, a cooling channel 731 and a fan 732, which includes a fan 733 shown.
  • the frame 725 adjoins the cooling channel 731, so that the frame 725 and thus indirectly the exciting coil 730 are cooled by an air flow flowing around a surface of the frame 725.
  • a setting device 740 with a driving element 746 which comprises a piston plate 747 and a piston rod 748, a drive which a squirrel cage 749, an excitation coil 750, a soft magnetic frame 745, a capacitor 743 and a circuit 744 for a rapid discharge of the capacitor 743 via the exciter coil 750 includes a cooling channel 751 and a fan 752, which includes a fan 753.
  • the condenser 743, the circuit 744 and the frame 745 adjoin the cooling passage 751 and are cooled by an air flow passing through the cooling passage 751.
  • Fig. 7 is a setting tool 760 with a driving element 766, which comprises a piston plate 767 and a piston rod 768, a drive which comprises a squirrel cage 769, an exciting coil 770, a soft magnetic frame 765 and a capacitor, not shown, a cooling channel 771 and a fan 772, which comprises a fan 773 shown.
  • the cooling channel 771 passes through the frame 765, so that the frame 765 and thus indirectly the exciting coil 770 are cooled by an air flow flowing through the cooling channel 771.
  • Fig. 8 is a setting tool 780 with a driving element 786, which comprises a piston plate 787 and a piston rod 788, a drive, which a squirrel cage 789, an excitation coil 790, a soft magnetic frame 785 and a not shown Condenser, a cooling channel 791 and a fan 792, which includes a fan 793 shown.
  • the cooling channel 791 passes through the frame 785 and an air gap between the exciting coil 790 and the squirrel cage 789, so that the exciting coil 790 and the squirrel cage 789 abut the cooling channel 791 and are cooled by an air flow flowing through the cooling channel 791.
  • Fig. 9 is a setting tool 800 with a driving element 806, which comprises a piston plate 807 and a piston rod 808, a drive, which comprises a squirrel cage 809, an excitation coil 810, a soft magnetic frame 805 and a capacitor, not shown, a cooling channel 811 and a fan 812, which includes a fan 813 shown.
  • the cooling channel 811 passes through the frame 805 and through the piston plate 807 of the driving element 806, so that the frame 805 and the driving element 806 and thus indirectly the exciting coil 810 and the squirrel cage 809 are cooled by an air flow flowing through the cooling channel 811.
  • Fig. 10 is a setting tool 820 with a driving element 826, which comprises a piston plate 827 and a piston rod 828, a drive comprising a squirrel cage 829, an exciting coil 830, a soft magnetic frame 825 and a capacitor, not shown, a cooling channel 831 and a fan 832, which includes a fan 833 shown.
  • the frame 825 is supported by a support structure 836 against radially outward forces adjacent to the cooling channel 831, so that the support structure 836 and thus indirectly the frame 825 and the excitation coil 830 are cooled by an air flow flowing around a surface of the support structure 836.
  • a section of a support structure 850 is shown.
  • the support structure 850 is composed of a multiplicity of stacked disks 860 made of a metal or alloy and has cooling ribs 870 on an outer side adjoining a cooling channel, which projects into the cooling channel and transfers heat from the support structure 850 to a cooling channel Increase cooling medium.
  • the cooling fins 870 are blackened.
  • Fig. 12 is a setting device 880 with a driving element 886, which comprises a piston plate 887 and a piston rod 888, a drive, which comprises a squirrel cage 889, an excitation coil 890, a soft magnetic frame 885 and a capacitor, not shown, and a cooling channel 891 shown.
  • the driving-in element 886 is guided with its piston plate 887 in a guide cylinder 896 along a setting axis not further described.
  • a brake member 897 is disposed at a front end of the guide cylinder 896.
  • the cooling channel 891 opens with a plurality of openings 898 When the drive element 886 driven by the drive and in. near the front end in the guide cylinder 896 Fig.
  • the driving element 886 thus forms a means for generating a cooling medium flow through the cooling channel 891.
  • the frame 885 adjoins the cooling channel 891, so that the frame 885 and thus indirectly the exciting coil 890 are cooled by the air flow in the cooling channel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP18176199.0A 2018-06-06 2018-06-06 Appareil de pose Withdrawn EP3578314A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18176199.0A EP3578314A1 (fr) 2018-06-06 2018-06-06 Appareil de pose
PCT/EP2019/063927 WO2019233844A1 (fr) 2018-06-06 2019-05-29 Appareil de pose
TW108119412A TW202000393A (zh) 2018-06-06 2019-06-05 安裝設備

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18176199.0A EP3578314A1 (fr) 2018-06-06 2018-06-06 Appareil de pose

Publications (1)

Publication Number Publication Date
EP3578314A1 true EP3578314A1 (fr) 2019-12-11

Family

ID=62567419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18176199.0A Withdrawn EP3578314A1 (fr) 2018-06-06 2018-06-06 Appareil de pose

Country Status (3)

Country Link
EP (1) EP3578314A1 (fr)
TW (1) TW202000393A (fr)
WO (1) WO2019233844A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4370283B1 (fr) 2021-07-10 2025-12-24 Rhefor GbR Outil de pose

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238440A1 (de) * 1972-08-04 1974-02-14 Otto Springmann Elektrisches schlagbolzengeraet
US20030183670A1 (en) * 2000-08-25 2003-10-02 Barber John P. Impact device
EP1800806A1 (fr) * 2005-12-21 2007-06-27 HILTI Aktiengesellschaft Outil électrique portatif
EP2404708A2 (fr) * 2010-06-15 2012-01-11 HILTI Aktiengesellschaft Dispositif d'enfoncement manuel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238440A1 (de) * 1972-08-04 1974-02-14 Otto Springmann Elektrisches schlagbolzengeraet
US20030183670A1 (en) * 2000-08-25 2003-10-02 Barber John P. Impact device
US6830173B2 (en) 2000-08-25 2004-12-14 Senco Products, Inc. Impact device
EP1800806A1 (fr) * 2005-12-21 2007-06-27 HILTI Aktiengesellschaft Outil électrique portatif
EP2404708A2 (fr) * 2010-06-15 2012-01-11 HILTI Aktiengesellschaft Dispositif d'enfoncement manuel

Also Published As

Publication number Publication date
WO2019233844A1 (fr) 2019-12-12
TW202000393A (zh) 2020-01-01

Similar Documents

Publication Publication Date Title
EP3801990B1 (fr) Appareil de pose
EP3578308A1 (fr) Appareil de pose
EP3801991B1 (fr) Appareil de pose
EP3898120B1 (fr) Appareil de scellement et procédé de fonctionnement d'un appareil de scellement
EP3801989A1 (fr) Appareil de pose
EP3801997A1 (fr) Appareil de pose
EP3801994B1 (fr) Appareil de pose
EP3801993A1 (fr) Appareil de pose
EP3801995A1 (fr) Appareil de pose
EP3801998B1 (fr) Appareil de fixation
EP4076855B1 (fr) Appareil de travail
EP3801996A1 (fr) Appareil de pose
EP4076851B1 (fr) Appareil de travail
EP4076852B1 (fr) Appareil de travail
WO2019233844A1 (fr) Appareil de pose
EP4076850B1 (fr) Appareil de travail
EP3578310A1 (fr) Outil de fixation
EP4076854B1 (fr) Appareil de travail

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200613