EP1077115B1 - Handhabbares Arbeitsgerät, insbesondere Pressgerät - Google Patents
Handhabbares Arbeitsgerät, insbesondere Pressgerät Download PDFInfo
- Publication number
- EP1077115B1 EP1077115B1 EP00113619A EP00113619A EP1077115B1 EP 1077115 B1 EP1077115 B1 EP 1077115B1 EP 00113619 A EP00113619 A EP 00113619A EP 00113619 A EP00113619 A EP 00113619A EP 1077115 B1 EP1077115 B1 EP 1077115B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- working device
- battery
- electric motor
- interval
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/042—Hand tools for crimping
- H01R43/0428—Power-driven hand crimping tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/907—Specific control circuit element or device
- Y10S388/921—Timer or time delay means
Definitions
- the invention relates to a manageable implement, in particular pressing device, with a tool, in particular a pressing tool, an electric motor for the drive the tool, a particular rechargeable battery for the power supply of the electric motor as well with a control device, which is a voltage comparator having a voltage comparison between the current battery voltage and a limit voltage, the controller being an attention sign generates and / or the activation of the electric motor Restrictive in the sense of conserving the battery, when comparing the voltage, the current battery voltage equal to or below the limit stress lies.
- a control device which is a voltage comparator having a voltage comparison between the current battery voltage and a limit voltage, the controller being an attention sign generates and / or the activation of the electric motor Restrictive in the sense of conserving the battery, when comparing the voltage, the current battery voltage equal to or below the limit stress lies.
- Such manageable implements are for assembly purposes or also known for processing purposes, e.g. in shape a generic pressing device according to EP-A-0 627 273. They consist essentially of a tool and a Electric motor for driving the tool. To connect of tubes presses are used by means of which a Press fitting, the purpose of making the pipe joint pushed over the pipe ends, radially compressed becomes. Also for mounting cable lugs on cable ends Be handled presses basically the same design used, as for example from EP-A 0 676 835 can be seen. The electric motor does not have to be directly on act on the tool. His energy can also be in one Hydraulic drive are then converted to the Tool acts.
- the power supply can the electric motor also has a replaceable and also rechargeable battery (accumulator), so that the working device can also be used where There is no electrical power supply.
- accumulator rechargeable battery
- the power supply can the electric motor also has a replaceable and also rechargeable battery (accumulator), so that the working device can also be used where There is no electrical power supply.
- battery powered devices it is important to know if the energy content still available in the battery is enough for another operation, at a Pressing a further pressing cycle to perform.
- the residual energy content hardly too observe, since these batteries have a characteristic with almost have a constant voltage curve over a long time, wherein the tension only drops steeply towards the end. This can cause a work cycle to be completely complete runs normally during the subsequent work cycle can not be completed because the battery is discharged.
- EP-A-0 676 835 it is proposed the working device - In this case, a cable shoe press - with a Voltage measuring device for detecting the respective battery voltage and a voltage comparator having at least a memory for at least one limit voltage to provide.
- the voltage comparator is turned on before the electric motor activates and takes one Voltage comparison between the current battery voltage and the limit voltage. Represents the voltage comparison out that the current battery voltage equal to or below the limit stress, the electric motor is not started. At the same time a visual display.
- EP-A-0 676 835 contains No information about how the battery voltage measured becomes.
- the invention is based on the object, a working device of the type mentioned above in such a way that working cycles only be started if for the respective duty cycle still sufficient battery capacity is available.
- Control means an interval member with at least one has stored interval and that a load member is present, over which the battery with a load cycle can be acted upon, the a voltage curve with it changing battery voltage generated, wherein the interval member with or after switching on the load member at least Once activated and the voltage comparison within the interval.
- the basic idea of the invention is consequently the battery to apply a load cycle that has a voltage curve generated with changing battery voltage and then within at least one interval with a characteristic voltage curve the voltage comparison make. If the voltage remains within the interval below a threshold voltage, an attention sign, for example, an electrical or audible alarm and / or activation of the Electric motor limited or the electric motor immediately locked, so that no complete discharge of the battery he follows.
- the load member may be the electric motor itself, i. in In this case, the electric motor is turned on, and within at least one interval with a characteristic Voltage curve is the voltage comparison performed.
- the load member may also be adjustable resistance in the form of a potentiometer be with which the load cycle is generated. This version is then useful when the battery from the implement disconnected and only connected to it via a cable is. In this case, the state of charge of the battery can be independent from the implement and thus without connection to be checked for this, if the appropriate circuit is arranged in the housing for the battery.
- both types of circuits can also be combined with each other be electrically parallel by the resistor is arranged to the electric motor and a changeover switch optionally the resistor or the electric motor is connected as a load member.
- the voltage comparator as analog Comparator is formed, on the one hand the Battery voltage and on the other hand, the limit voltage applied.
- the limit voltage can be from an auxiliary battery be generated.
- the comparator switches logically when the current battery voltage is the limit voltage either above or below.
- the circuit described above requires no current measurement or current measurement determining Parts and therefore characterized by simplicity out. In the case that the load member of the electric motor itself is, the battery is not through the voltage comparison loaded.
- the interval member is preferably designed as a timer. Instead, the interval can also affect others Be determined manner, for example by detection a certain number of revolutions of the electric motor or similar.
- the interval member is activated only when detected is that the current battery voltage a second Limit voltage reached or falls below. In this case, the first and the second limit voltage are preferred equal.
- the load member should be a start-up phase with a voltage drop and then generate voltage recovery, like this in most cases, especially at Pressing devices is the case when the electric motor the Last member is.
- the voltage drop arises through the high power consumption, which is due to the fact that the driven by the electric motor parts at its idle speed have to be accelerated.
- the interval element should be activated in such a way that the interval is within the start-up phase.
- the intervals at least over a part of the load cycle, preferably over the whole Load cycle, immediately adjacent to each other, so that a continuous voltage comparison in the above sense takes place.
- Both versions are especially then useful if the intervals have different limiting voltages are assigned, so that the voltage curve at traced and evaluated strongly fluctuating tensions can be.
- a comparator for the voltage comparator it can be provided that on the comparator bear different limit voltages, the alternately switched on.
- it can also be one Adjustment be present over which the delivered Set limit voltage differently for each interval leaves. It is understood that this by an appropriate Circuit before or at the beginning of the interval happens.
- the Limit voltage (s) is changeable or are, for example around them at changed conditions like temperature or aging condition the moving parts of the implement adapt.
- a temperature measuring device can be provided be, wherein the assigned to the respective interval Limit voltage within a design temperature range the higher the value is set and / or the length of the interval or the lower the intervals the temperature is. This will take into account the circumstance worn, that the energy content of a battery at low Operating temperatures is lower than at higher Temperatures.
- the Limit voltage (s) by the action of the temperature measuring device is increased when the of the temperature detected temperature below or above of the design temperature range.
- the Limit voltage (s) is high enough or lie, is This prevents the implement at temperatures can be put into operation for the battery are harmful. It is particularly useful if the Temperature measuring device directly the temperature of the battery Measures, as in this way already the heating the battery after the start of the electric motor in the sense It can be taken into account that the limit voltage (s) is reduced or become.
- a further embodiment of the invention in a load cycle at least one current battery voltage is stored and in a subsequent Load cycle a comparison between the previously stored Battery voltage and the current battery voltage in the same phase of the load cycle is performed, wherein a higher limit or higher limits are used becomes or become and / or the length of the interval or the intervals is shortened when the current battery voltage is higher than the saved one.
- a higher limit or higher limits are used becomes or become and / or the length of the interval or the intervals is shortened when the current battery voltage is higher than the saved one.
- “creeping" changes in particular due to aging processes, so that reliably avoided even in these cases is that the implement is put into operation, if the state of charge of the battery is not working cycles allows more.
- the comparison should be in one Phase of constant load generation by the load member be carried out, since here the creeping changes are best ascertainable.
- the tool reset by the electric motor in the starting position when the voltage comparison is the current battery voltage equal to or below the limit stress lies.
- the electric motor should be immediately or switched off after returning the tool to the starting position, even be locked in the latter case if in the voltage comparison, the current battery voltage is equal to or below the limit stress.
- the load cycle is driven to the end, when comparing the voltage current battery voltage is equal to the threshold voltage or below this, and the electric motor locked until the battery is replaced. It can, however be provided that the electric motor after a limited number of load cycles is locked until the battery is replaced.
- the pressing device shown in Figures 1 and 2 has two T-shaped bearing plates 2, 3, which - in the Front view seen in Figure 1 - exactly one behind the other are arranged.
- the bearing plates 2, 3 penetrated by a connecting pin 4.
- Connecting bolts 4 are support plates from both sides 5, 6 put on (the front is omitted in Figure 1), which belong to the total designated 7 drive. They are only shown with their upper area.
- an electric motor is arranged, which drives a spindle.
- the upper end of the spindle is with a top fork-shaped drive head 8 provided.
- Within the drive head 8 are next to each other two drive rollers 9, 10 about a horizontal Axle freely rotatably mounted.
- the drive head 8 can be reciprocated vertically.
- the connecting bolt 4 is removable, so that the entire drive 7 removed in a simple manner can be.
- the two pivot levers 13, 14 are mirror-symmetrical trained and form the pressing tool. They point from the bearing pins 11, 12 downwardly extending drive arms 15, 16 and upwardly extending jaw arms 17, 18 on.
- the drive arms 15, 16 have drive surfaces 19, 20 on, which compared to the horizontal initially only are slightly inclined and then in a steep upward directional area.
- Sides of the jaw arms 17, 18 are semicircular Recesses molded, which the contour of Preßbakken 21, 22 form.
- Figures 1 and 2 show the pressing device 1 in the open position, in which the drive head 8 its lowest position occupies. In this position he is not on the Drive arms 15, 16 at.
- the pressing device 1 is connected to a Pipe connection set so that it between the Preßbakken 21, 22 lies.
- the pipe connection has a pipe end region 23, over which a press fitting 24 partially pushed is. This can be seen in particular from FIG.
- the press fitting 24 has a cylinder portion 25 with a serving as a stop for the pipe end 23, central constriction 26.
- At the free ends has the press fitting 24 outwardly curved annular beads 27, 28, in the inner side in each case an elastomeric Seal 29, 30 is inserted.
- the cheek plates 21, 22nd are at the level of the right in Fig. 2 annular bead 28th
- FIG. 3 shows the electrical circuit of the pressing device 1. Its electric motor 31 is in a main circuit 32nd which is grounded at 33 and that of a rechargeable Battery 34 (accumulator) with a specific Voltage is supplied. In the main circuit 32, a switch 35 is further arranged over a power button 36 is actuated. The power button 36 serves to turn the electric motor 31 on and off. In series with this switch 35 is a second Switch 37 is provided, which is controlled by a relay 38 becomes.
- the circuit includes a voltage comparator 39 with an analog comparator 40.
- the comparator 40 has two inputs 41, 42, wherein the first input 41 connected via a line 43 to the main circuit 32 is and whose voltage picks up.
- At the second entrance 42 is a limit voltage, which from an auxiliary battery 44 is generated.
- In the comparator 40 are the compared to two voltages, giving its output 45 set to "logic 0" when the voltage on the battery 34 is lower than the threshold voltage at the second input 42, while setting the output to "logical 1" when the voltage at the first input 41 is again greater than the threshold voltage at the second input 42nd
- the output 45 is connected via a line 46 with a timer 47 associated with a memory 48 and a relay driver 49 are connected downstream. Its output is via a line 50 to the relay 38 of the second switch 37 connected.
- a potentiometer 51st Parallel to the electric motor 31 is a potentiometer 51st arranged. About a change switch 52, the electric motor 31 are bridged, so that with the help of the potentiometer 51 generates a duty cycle in the main circuit 32 can be.
- a pressing with the help of the pressing device 1 is through Pressing the power button 36 initiated, causing the first switch 35 is closed.
- the second switch 37 is then - contrary to the graphic representation in Figure 3 - in the closed state and the Changeover switch 52 is opposite to the drawing folded so that by pressing the power button 36, the electric motor 31 is started.
- the moving parts of the electric motor 31 and drive spindle and drive head 8 accelerates must be, the current in the main circuit 32 increases strong. This creates a significant voltage drop below below at the second input 42 of the comparator 40 adjacent limit voltage 55, over the entire Press cycle is kept constant.
- the comparator 40 When falling below the limit voltage 55, the comparator 40 of "logical 1" to "logical 0".
- About the line 46 is the Timer 47 is activated.
- the timer 47 runs at a maximum over a constant Time interval t0. If and when the first entrance 41 of the comparator 40 voltage applied in the main circuit 32 again during this time interval t0 over the Limit voltage 55 increases, the output 45 on "logical 1". This has the consequence that the timer 47 is reset to 0. This situation is shown in Figure 4. It can be seen that the Voltage within the time interval t0, after a time tE recovered so far that the voltage curve 53 again comes to rest above the threshold voltage 55.
- the threshold voltage 55 is set so high that the shutdown the electric motor 31 due to the voltage curve 54 already takes place when the battery 34 still provides a residual energy. This residual energy can do this be used, visual or audible beeps to generate and the electric motor 31 in the starting position reset. In addition, by an appropriate Circuit causes a restart of the Electric motor 31 is possible only when the battery 34th replaced by a new one.
- FIGS. 6 and 7 show further possible voltage characteristics 56, 57 are shown over time t, where too Here a constant threshold voltage 58 is applied.
- a voltage drop is characteristic again due to the acceleration of the parts to be moved on the idle speed of the electric motor 31 with subsequent Tension recovery and tension recovery and thus exceeding the limit voltage 58 within the time interval t0, i. the period tE between Dropping the voltage below the threshold voltage 58 and then Exceeding the threshold voltage 58 is smaller as the predetermined time interval t0.
- the timer 47th reset again, and the electric motor 31 continues.
- FIG. 7 shows the voltage curve 57 when it is no longer sufficient Charge the battery 34th This is already clear at the much stronger Spannunsabfall after Starting the electric motor 31, even if here is the rest beyond the threshold voltage 58 within the time interval t0 happens, so no shutdown of the Electric motor 31 is effected. The then re-entering Voltage drop happens much earlier than at the voltage curve 56 and it lasts throughout Time interval t0 on. In this case, the circuit is However, according to Figure 3 modified so that the second Switch 37 is not opened, but the pressing is completed because the state of charge of the Battery 34, as the voltage waveform 57 in the first time interval t0 shows better than in the case according to FIG. 5. Only after completion of pressing and switching off the Electric motor 31 via the first switch 35 is the Opening of the second switch 37 and thus a blocking, which is only canceled when the battery 34 by a new is replaced.
- the voltage U is in the upper part and in the lower part Part of the current I plotted over time t. there arise the voltage curve 59 and the current waveform 60.
- a Limit voltage 61 registered, in contrast to the Limit voltages 55, 58 in Figures 4 to 7, although initially is constant, but then one level lower set and then raised again by two levels, so that in the end it is higher than at the beginning.
- the limit voltage 61 is therefore changeable, which by a corresponding Circuit in the region of the auxiliary battery 44 time-dependent and automatically done.
- the characteristic is found in the first time segment Voltage drop instead.
- the tension recovery and thus the return of the limit voltage 61 coincides with the end of the first time segment, so that here still assumed a sufficient state of charge and the electric motor 31 is not turned off.
- the limit voltage 61 again below.
- the subsequent recovery is like that weak that the limit voltage 61 does not reach again becomes.
- the Tension still below the limit tension 61, though it here is lowered. It will be within this time segment only briefly exceeded. Then another Voltage drop at high threshold voltage 61, so that here too an insufficient state of charge is detected.
- the voltage rises again above the threshold voltage 61.
- the Each voltage was below the threshold voltage 61, it remains in the determination of at least for the next press cycle insufficient charge of the battery 34, and the electric motor 31 is opened by opening the second switch 37 at the latest after completion of the present Press cycle locked.
- the review can be the state of charge of the battery 34 before turning on Perform electric motor 31 to ensure that the subsequent compression can be performed. It exists however, also the possibility of checking during to perform the crimping when in the circuit taken in accordance with Figure 3, the electric motor 31 and in a special circuit is arranged. Such a thing compared with Figure 3 modified circuit is then a pure test circuit for determining the state of charge the battery 34.
- the test circuit in the housing of the battery 34 are housed, so that the suitability of the Battery 34 for the execution of pressing cycles before Connection with the pressing device 1 can be performed.
- a corresponding display is then used for information about the state of charge. After connecting with the actual Pressing device 1 may fail to detect an insufficient State of charge that already described in detail above Measures are taken, i.
- a visual or audible indicator informs you Operator that another press cycle should not or should not be started.
- the threshold voltage and the time interval t0 should be applied to the which is due to the finding of the insufficient Charging state is switched. If the pressing cycle should then be completed, the should Limit voltage higher and / or the time interval t0 smaller be as in the case where the electric motor 31 immediately is locked.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Control Of Electric Motors In General (AREA)
- Portable Power Tools In General (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
- Figur 1
- ein Preßgerät in der Frontansicht mit Preßfitting und Rohrende in der Offenstellung;
- Figur 2
- einen Querschnitt durch das Preßgerät gemäß Figur 1 in der Ebene A-A;
- Figur 3
- eine Schaltung zur Durchführung eines Spannungsvergleichs bei dem Preßgerät gemäß den Figuren 1 und 2;
- Figur 4
- eine Graphik mit dem Spannungsverlauf bei dem Preßgerät gemäß den Figuren 1 bis 3 bei ausreichendem Ladungszustand der Batterie;
- Figur 5
- eine Graphik mit dem Spannungsverlauf bei dem Preßgerät gemäß den Figuren 1 bis 3 bei einem nicht mehr ausreichenden Ladungszustand der Batterie;
- Figur 6
- eine Graphik mit einem anderen Spannungsverlauf eines Preßgerätes bei ausreichendem Ladungszustand der Batterie;
- Figur 7
- eine Graphik mit einem Spannungsverlauf bei diesem Preßgerät bei nicht mehr ausreichenden Ladungszustand der Batterie;
- Figur 8
- eine kombinierte Graphik mit einem Spannungs- und Stromverlauf bei nicht ausreichendem Ladungszustand der Batterie.
Claims (23)
- Handhabbares Arbeitsgerät, insbesondere Preßgerät (1), mit einem Werkzeug, insbesondere einem Preßwerkzeug (13, 14), einem Elektromotor (31) für den Antrieb des Werkzeuges (13, 14), einer insbesondere wiederaufladbaren Batterie (34) für die Energieversorgung des Elektromotors (31) sowie mit einer Steuereinrichtung, die ein Spannungsvergleichsglied (39) aufweist, das einen Spannungsvergleich zwischen einer aktuellen Batteriespannung und einer Grenzspannung (55, 58, 61) vornimmt, wobei die Steuereinrichtung ein Aufmerksamkeitszeichen erzeugt und/oder den Antrieb des Elektromotors (31) im Sinne einer Schonung der Batterie (34) einschränkt, wenn beim Spannungsvergleich die aktuelle Batteriespannung gleich der Grenzspannung (55, 58, 61) ist oder unter dieser liegt, dadurch gekennzeichnet, daß die Steuereinrichtung ein Intervallglied (47) mit wenigstens einem eingespeicherten Intervall (t0) aufweist und daß ein Lastglied (31, 51) vorhanden ist, über das die Batterie (34) mit einem Lastzyklus beaufschlagbar ist, der einen Spannungsverlauf (53, 54, 56, 57, 59) mit sich ändernder Batteriespannung erzeugt, wobei das Intervallglied (47) mit oder nach Einschalten des Lastglieds (31, 51) wenigstens einmal aktiviert wird und der Spannungsvergleich innerhalb des Intervalls (t0) vorgenommen wird.
- Arbeitsgerät nach Anspruch 1, dadurch gekennzeichnet, daß das Lastglied der Elektromotor (31) ist.
- Arbeitsgerät nach Anspruch 1, dadurch gekennzeichnet, daß das Lastglied ein verstellbarer Widerstand (51) ist.
- Arbeitsgerät nach Anspruch 3, dadurch gekennzeichnet, daß der Widerstand (51) elektrisch parallel zu dem Elektromotor (31) angeordnet ist und über einen Wechselschalter (52) wahlweise der Widerstand (51) oder der Elektromotor (31) als Lastglied zuschaltbar ist.
- Arbeitsgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Spannungsvergleichsglied (39) einen Komparator (40) aufweist, an dem einerseits die Batteriespannung und andererseits die Grenzspannung (55, 58, 61) anliegen.
- Arbeitsgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Intervallglied als Zeitglied (47) ausgebildet ist.
- Arbeitsgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Spannungsvergleichsglied (39) nach dem Einschalten des Lastgliedes (31, 51) einen Spannungsvergleich durchführt und das Intervallglied (47) erst aktiviert wird, wenn festgestellt wird, daß die aktuelle Batteriespannung eine zweite Grenzspannung (55, 58, 61) erreicht oder unterschreitet.
- Arbeitsgerät nach Anspruch 7, dadurch gekennzeichnet, daß die erste und die zweite Grenzspannung (55, 58, 61) gleich sind.
- Arbeitsgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Lastglied (31, 51) eine Anlaufphase mit einem Spannungsabfall und anschließender Spannungserholung erzeugt und das Intervallglied (47) derart aktiviert wird, daß der Intervall (t0) innerhalb der Anlaufphase liegt.
- Arbeitsgerät nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Intervallglied (47) innerhalb des Lastzyklus mehrfach aktiviert wird.
- Arbeitsgerät nach Anspruch 10, dadurch gekennzeichnet, daß das Intervallglied (47) nur in Bereichen des Lastzyklus aktiviert wird, wo ein Spannungsabfall und eine anschließende Spannungserholung stattfinden.
- Arbeitsgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Intervalle zumindest über einen Teil des Lastzyklus unmittelbar aneinander grenzen.
- Arbeitsgerät nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß den Intervallen verschiedene Grenzspannungen (61) zugeordnet sind.
- Arbeitsgerät nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Grenzspannung(en) veränderbar ist bzw. sind.
- Arbeitsgerät nach Anspruch 14, dadurch gekennzeichnet, daß eine Temperaturmeßeinrichtung vorhanden ist, wobei die dem jeweiligen Intervall (t0) zugeordnete Grenzspannung innerhalb eines Auslegungstemperaturbereichs umso höher gesetzt wird, je niedriger die Temperatur ist.
- Arbeitsgerät nach Anspruch 15, dadurch gekennzeichnet, daß die Grenzspannung(en) durch Einwirkung der Temperaturmeßeinrichtung erhöht wird bzw. werden, und/oder die Länge des Intervalls (t0) bzw. der Intervalle verkürzt werden, wenn die von der Temperaturmeßeinrichtung erfaßte Temperatur unter oder oberhalb des Auslegungstemperaturbereichs liegt.
- Arbeitsgerät nach einem der Ansprüche 15 oder 16, dadurch gekennzeichnet, daß die Temperaturmeßeinrichtung die Temperatur der Batterie (34) mißt.
- Arbeitsgerät nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß in einem Lastzyklus wenigstens eine aktuelle Batteriespannung gespeichert wird und in einem darauffolgenden Lastzyklus ein Vergleich zwischen der zuvor gespeicherten Batteriespannung und der aktuellen Batteriespannung in der gleichen Phase des Lastzyklus durchgeführt wird, wobei eine höhere Grenzspannung bzw. höhere Grenzspannungen herangezogen wird bzw. werden und/oder die Länge des Intervalls (t0) bzw. der Intervalle verkürzt wird, wenn die aktuelle Batteriespannung höher ist als die gespeicherte.
- Arbeitsgerät nach Anspruch 18, dadurch gekennzeichnet, daß der Vergleich in einer Phase gleichbleibender Lasterzeugung durch das Lastglied (31, 51) durchgeführt wird.
- Arbeitsgerät nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß das Werkzeug (13, 14) vom Elektromotor (31) in die Ausgangslage zurückgestellt wird, wenn beim Spannungsvergleich die aktuelle Batteriespannung gleich der Grenzspannung (55, 58, 61) ist oder unter dieser liegt.
- Arbeitsgerät nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß der Elektromotor (31) sofort oder nach Zurückstellen des Werkzeugs (13, 14) in die Ausgangslage abgeschaltet wird, wenn beim Spannungsvergleich die aktuelle Batteriespannung gleich der Grenzspannung (55, 58, 61) ist oder unter dieser liegt.
- Arbeitsgerät nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß der Lastzyklus zu Ende gefahren wird, wenn beim Spannungsvergleich die aktuelle Batteriespannung gleich der Grenzspannung ist oder unter dieser liegt, und der Elektromotor (31) gesperrt wird, bis die Batterie (34) ausgetauscht ist.
- Arbeitsgerät nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß der Elektromotor (31) nach einer begrenzten Anzahl von Lastzyklen gesperrt wird, bis die Batterie (34) ausgetauscht ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20023674U DE20023674U1 (de) | 1999-08-17 | 2000-06-28 | Handhabbares Arbeitsgerät, insbesondere Preßgerät |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19938968 | 1999-08-17 | ||
DE19938968A DE19938968A1 (de) | 1999-08-17 | 1999-08-17 | Handhabbares Arbeitsgerät, insbesondere Preßgerät |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1077115A2 EP1077115A2 (de) | 2001-02-21 |
EP1077115A3 EP1077115A3 (de) | 2003-01-15 |
EP1077115B1 true EP1077115B1 (de) | 2005-04-27 |
Family
ID=7918663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00113619A Expired - Lifetime EP1077115B1 (de) | 1999-08-17 | 2000-06-28 | Handhabbares Arbeitsgerät, insbesondere Pressgerät |
Country Status (4)
Country | Link |
---|---|
US (1) | US6369560B1 (de) |
EP (1) | EP1077115B1 (de) |
CA (1) | CA2316035A1 (de) |
DE (2) | DE19938968A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10106360C1 (de) * | 2001-02-12 | 2002-07-11 | Rothenberger Werkzeuge Ag | Verfahren zum automatischen Steuern von elektro-hydraulischen Handwerkzeugen und Anordnung hierfür |
EP3338954B1 (de) * | 2016-12-21 | 2019-08-21 | Von Arx AG | Pressvorrichtung |
US11621531B2 (en) | 2018-09-28 | 2023-04-04 | Hubbell Incorporated | Power tool with crimp localization |
CN114094413B (zh) * | 2021-11-10 | 2024-04-23 | 江苏云意电气股份有限公司 | 一种用于汽车调节器的插头组件焊接工装 |
DE102022124538B4 (de) | 2022-09-23 | 2024-04-18 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft | Verfahren zur Steuerung eines Elektrowerkzeugs |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610536C2 (de) * | 1976-03-12 | 1979-07-26 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur Feststellung des Erhaltungs- und Ladezustandes von Blei-Akkumulatoren sowie Schaltungsanordnung zur Durchführung des Verfahrens |
AT346429B (de) * | 1976-11-16 | 1978-11-10 | Jungfer Akkumulatoren | Elektrische anzeigevorrichtung fuer den ladezustand einer sekundaerbatterie |
US4320334A (en) * | 1980-10-01 | 1982-03-16 | General Electric Company | Battery state-of-charge indicator |
DE3942288C1 (de) * | 1989-12-21 | 1991-03-14 | Scheidt & Bachmann Gmbh, 4050 Moenchengladbach, De | |
DE9007414U1 (de) * | 1990-04-12 | 1991-07-18 | Dischler, Helmut, Dipl.-Ing., 4040 Neuss, De | |
US5553478A (en) * | 1994-04-08 | 1996-09-10 | Burndy Corporation | Hand-held compression tool |
US5657417A (en) * | 1995-05-02 | 1997-08-12 | Burndy Corporation | Control for battery powered tool |
DE19517709C1 (de) * | 1995-05-13 | 1996-11-28 | Bosch Gmbh Robert | Verfahren zur Überwachung des Ladezustands einer wiederaufladbaren Batterie |
US5773977A (en) * | 1996-04-18 | 1998-06-30 | Johnson Controls Technology Company | Method of testing an electric storage battery by determining a bounce-back voltage after a load has been removed |
JP2000515250A (ja) * | 1997-05-27 | 2000-11-14 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 電池式電気装置 |
US5936383A (en) * | 1998-04-02 | 1999-08-10 | Lucent Technologies, Inc. | Self-correcting and adjustable method and apparatus for predicting the remaining capacity and reserve time of a battery on discharge |
-
1999
- 1999-08-17 DE DE19938968A patent/DE19938968A1/de not_active Withdrawn
-
2000
- 2000-06-28 EP EP00113619A patent/EP1077115B1/de not_active Expired - Lifetime
- 2000-06-28 DE DE50010146T patent/DE50010146D1/de not_active Expired - Lifetime
- 2000-08-16 CA CA002316035A patent/CA2316035A1/en not_active Abandoned
- 2000-08-17 US US09/640,977 patent/US6369560B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19938968A1 (de) | 2001-03-01 |
US6369560B1 (en) | 2002-04-09 |
EP1077115A2 (de) | 2001-02-21 |
DE50010146D1 (de) | 2005-06-02 |
CA2316035A1 (en) | 2001-02-17 |
EP1077115A3 (de) | 2003-01-15 |
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