DE102012017616A1 - Electrical pick has pick tool whose flapping mode frequency is adjusted over use of different number of electrical energy storage in housing - Google Patents

Abstract

The electrical pick (1.1) has a replaceable pick tool (13), a tool head (3.1), a stroke and housing (29.1). The flapping mode frequency of the pick tool is adjusted over an use of a different number of electrical energy storage (6.1,6.2) in the housing. The flapping mode frequency is set over an arrangement of various number of electrical energy storage in the housing. The size of housing is changed by addition of a retainer of electrical energy storage, where housing is made of electrically conductive material. An independent claim is included for a method for opening lock by electrical pick.

Description

The present invention relates to an electric pick in the form of a portable hand tool with a replaceable on the electric pick pick tool, a stroke adjustment of the picking tool and an adjustable beat frequency of the picking tool.

Electric picks are known in the art. Often, these have an elongate housing, which has a receptacle for a picking tool. With the electric pick a shock pulse is transferred to pin or disk tumblers of a lock, whereby a closing gap can be generated, ie all pins are simultaneously brought into the correct position, so that the lock can be unlocked. With electric locking guns, also called "E-Picks", a much higher beat frequency can be generated compared to the well-known mechanical locking guns that can perform only one stroke. An electric pick, on the other hand, is operated by an electric motor, which makes it work as a multiple striking tool and strikes the pins of the lock. Such electric locking guns as transportable hand tools as well as various embodiments thereof go for example from the DE 20 2005 016 435 U1 , of the DE 20 2010 010 912 U1 , of the DE 20 2011 001 358 U1 as well as the DE 10 2010 033 00 A1 out.

The object of the present invention is to make it possible to widen the field of application of an electric pick when opening locks.

This object is achieved with an electric pick with the features of claim 1 as well as with a method having the features of claim 10. Further advantageous embodiments and further developments will become apparent from the following subclaims. However, the individual features resulting from the respective claims are not limited to these claims. Rather, one or more features of the main and subclaims may be specified or substituted by one or more features of the following description. In particular, the present claims should be construed as merely a first attempt to put the invention into words without, however, wanting to limit the invention. Also, one or more features of different configurations can be linked to further developments.

It will be an electric pick in the form of a transportable hand tool with a pick-on tool replaceable at the electric pick, a tool head, a stroke adjustment, a housing and a striking frequency of the pick tool, the use of a different number of electrical energy storage in the Housing is adjustable, wherein an adjustment of the beat frequency via an arrangement of a different number of electrical energy storage in the housing is proposed.

The portable hand tool makes it possible that the proposed electric pick is available regardless of an external power supply by a craftsman at various locations. This may for example be the case with a front door opening, as well as in places where there are no power lines. Depending on the application or wear, the pick tool can be replaced. The pick tools can be designed differently, for example. In one embodiment, the pick tool is tapered. Another embodiment has, similar to keys, beards or it may have a shape that divides fork-like towards the tip of the tool. A stroke adjustment is arranged in the tool head of the electric pick. This regulates the path that the tip of the pick tool moves up and down. The tool head itself is preferably designed replaceable, so that it can be combined with different housings. It is envisaged, for example, that different housings have different functionalities for the operation of the electric pick, such as, among other things, simple designs in which the electric pick on the housing can be switched on and off, or housings which offer further functionalities, such as For example, setting options of operating parameters. Also, different tool heads can be arranged interchangeably on a housing. The electrical energy storage can be interchangeable and loosely arranged in the housing and be integrated in the housing. Furthermore, it is also possible that both permanently integrated in the housing electrical energy storage can be combined with interchangeable electrical energy storage. Commercially available batteries and accumulators are suitable for the replaceable electrical energy storage devices, electrical accumulators permanently integrated in the housing can be used, for example, as well as accumulators and batteries.

The housing is preferably multi-part. Preferably, however, the housing comprises at least one elongated section, which may for example be cylindrical. In the interior of this cylinder, for example, a motor can be arranged, which specifies a beat frequency for the interchangeable pick tool. The engine is in particular an electric motor. It can, for example, via a gearbox with a receptacle for the picking Be connected tool. A change in a beat frequency can be generated, for example, via a change in the rotational speed of the electric motor resulting from a change in the operating voltage applied to the motor.

The change in the operating voltage is achieved, for example, by arranging a different number of electrical energy stores in the housing. For example, a different number of energy stores can be accommodated in the housing, which are then each arranged and electrically connected to one another so that together they provide the operating voltage for the electric motor in a circuit. Furthermore, it can also be provided that a constant number and / or arrangement of energy storage devices is present in the housing. The tap of the operating voltage is preferably carried out in various ways, wherein a mutually different number of electrical energy storage are electrically connected to each other and thereby provide each other different operating voltages. The arrangement of the energy storage, which are relevant for the circuit, for example, by different Spannungsabgriffpunkte in the housing. The voltage can be tapped for example at different points, whereby only certain electrical energy storage are connected to the circuit. In this way, the operating voltage is adjusted. The change of the operating voltage takes place in stages. Depending on which electrical energy store are electrically connected to each other, the operating voltage changes.

One embodiment provides, for example, that the electric pick is operated with two batteries and then another battery is added to change the operating voltage. This connects in the housing to the other two batteries in a series circuit, whereby the operating voltage is increased by the voltage of the additional battery. But it is also possible that, for example, a permanently integrated in the housing energy storage, preferably an accumulator, is present and only for different operating modes, the operating voltage is increased by adding a further energy storage.

A further embodiment of the electric pick provides that a size of the housing is changed by adding a receptacle of an electrical energy store.

In a further embodiment of the invention it is provided that one or more receptacles are connected to the housing, which in turn provide space to add more electrical energy storage, so as to increase the operating voltage. This can be done, for example, that the housing is extended by a recording in the space for an energy storage, which in turn expands the circuit and thus increases the operating voltage. In a preferred variant, the addition or removal of such recordings takes place without tools, for example by a thread. Also, it is particularly advantageous if the housing and the receptacles are modular, for example, if both have the same cross-section and so the housing is extended. An example of this is a housing, which provides space for two consecutively connected batteries. For example, if the housing is axially closed with a removable cap, it is preferably provided that the cap is removed, a receptacle is placed on the housing on the seat of the cap, and the cap in turn closes the receptacle. Thus, another battery, so a total of three batteries, connected in series one behind the other. It is ensured that the circuit remains through the added recording therethrough. A recording can be recordable, consist of an electrically conductive material or it is provided on the recording tracks that close the circuit in the housing, or through the housing walls. Preferably, there may be various receptacles which can be connected to the housing, in particular represent an extension of the housing. The various recordings can record different numbers of electrical energy stores, preferably batteries or accumulators and / or different electrical energy storage of different sizes or with different energy content.

In a particularly preferred embodiment, the housing and receptacles have the same diameter, wherein the housing can be extended or expanded by the receptacles in the axial direction. The attachment of the receptacle to the housing takes place, for example, in that it is inserted between a closure cap at the end of the handle and the housing opening. The attachment can be done, for example, that the recording is screwed with a thread. Now a recording can be screwed onto the housing and closed with the cap. In this case, the receptacle can also be made of an electrically conductive material. Also, there may be electrical traces on the receptacle that close the circuit. The length of the receptacle may have the length of another electrical energy storage, which is now inserted into the housing. The energy storage devices are thus connected in series and increase the operating voltage for the electric motor.

Preferably, batteries or batteries are used, which have a standardized size and are commercially available. For example, lithium-ion batteries can also be used. An operating voltage is according to one embodiment, for example, in a range between 2 V to 9 V. By connecting two or more batteries or accumulators, it is possible to provide a desired voltage or current available. For example, it may be provided that two batteries or accumulators are connected in series and, to the extent that result in an input voltage which amounts to 4.8 V summed. However, it may also be the case that a different battery size is used. As a result, for example, set a different input voltage, z. B. 6 V. Furthermore, there is the possibility that a battery compartment is provided, which allows the use of different sizes of batteries or accumulators. It can also be provided that the battery compartment has a subdivision. For example, a first battery size can be used in an upper part, while a different battery size can be used in a lower part. This allows, in particular in use, that one or the other size can be used depending on the availability of replacement batteries or charged batteries. A component, preferably a voltage monitor in the electric pick, in turn, can be provided, for example, which ensures that only one of possibly two simultaneously available input voltages is forwarded. In particular, a voltage monitoring can be designed in such a way that the electrical energy is first switched from the one batteries and, when a preferably predeterminable limit is reached, to the other batteries or accumulators without the operation therefore having to be interrupted. By a display device, for example by means of a display, a lamp and / or by a display tone can be signaled to the user of the electric pick that a switch soon takes place or was carried out that a critical state of charge was reached and / or that an exchange of a or more batteries and / or accumulators is necessary. In particular, such a display is designed such that a minimum reserve is still available, which still allows operation for a certain time. The display device may also be used to indicate other parameters and or states of one or more components of the electric pick.

It is preferably provided that the electric pick has a removable cap that allows a tool-free replacement of batteries such as batteries. For example, the removable cap is secured to the counterpart of the housing so that no water and in particular moisture can not penetrate. For example, it can be provided that a seal is used for this purpose. The seal may be a replacement part which is disposed between the counterpart and the cap. According to one embodiment, it is provided that the electric pick has the removable cap with a thread or a quick release, preferably in the form of a bayonet closure.

A further embodiment provides, for example, that a change in a gear ratio leads to a change in the beat frequency. The change of the gear ratio can be generated for example via a bevel gear. Depending on the position of the cones to each other, the transmission ratio can change. In addition to the form-fitting gear shape and a non-positive transmission, in particular a friction gear can be used. For example, a cone ring gear can be used.

An embodiment provides, for example, that a gear head is provided on the electric pick. The gear head has, for example, an eccentric. By means of the eccentric a striking movement can be generated, which ultimately leads to a movement of pins of the lock when inserting the interchangeable pick tool into a closing channel, whereby this can finally be unlocked. One embodiment provides that the picking tool is indeed excited via the eccentric. However, there is no forced guidance, d. H. For example, the pick tool in the form of a needle is not connected to the eccentric so that the needle must always follow the eccentric movement. It may be provided, for example, that the pick tool rests on one side of the eccentric, while the other side is acted upon by a force, in particular a spring force. For example, the spring can be exchanged and thereby a different power development can be pronounced on the picking tool. There is also the possibility that the spring force is variable by adjusting the spring length. It is particularly preferred if, by adjusting the force acting on the other side of the picking tool, following of the picking tool of the movement of the eccentric can be ensured at all rotational speeds. A further development therefore provides that a transmission of the eccentric motion is forced.

In this way, it can be avoided, for example, that a needle lifts at very high rotational speeds of the eccentric of this and thus the desired frequency can not be transferred to the pins of the castle. Therefore, a power transmission is preferred provided, which provides a forced operation starting from the electric motor to the interchangeable pick tool. Yet another embodiment provides, for example, that the pick tool is forcibly energized, in particular in the form of a needle and in this case builds up a natural vibration. This self-oscillation can for example be influenced, preferably adjusted, by a stop system and / or an extension or reduction of a length of the needle.

A further embodiment of the electric pick has a switch for actuating the electric pick in the housing, which protrudes into the housing through an interruption in the housing wall, wherein the switch is embedded in a recess formed in the housing wall.

In a further embodiment of the invention it is provided that the switch is embedded in the housing. This means that the housing has a recess and the switch is embedded in this recess. In this way, the switch is not exposed as in other models of the electric pick and it is an unwanted switching, for example, during transport, counteracted.

A further embodiment provides, for example, that an on / off switch is present on the electric pick. With this switch, the electric pick can be brought into an activated state. In the non-activated state of the electric pick can be, for example, in such a state of rest that no quiescent current flows. A further embodiment provides, for example, that is offset by means of a switch, the electric pick in a stand-by mode. In this case, a low quiescent current flows. The electric pick can in particular have a switch which has a multiple occupancy. Thus, a single switch can be used to turn off an electric pick completely or to put it only in a stand-by mode. The switch can be arranged for example in the region of a gripping surface of the housing. However, there is also the possibility that the switch is arranged, for example, on the cap and / or inside the battery door or in the battery compartment itself.

A further embodiment provides, for example, that the electric pick provides a battery receptacle with a vibration protection, by means of which movement of one or more batteries and / or accumulators during operation of the electric pick is at least impeded, preferably prevented. For this purpose, for example, an elastic means may be provided which secures used batteries or rechargeable batteries in their position. This can be done, for example, via a spring force, via an elastic material which is compressed and / or via a deformation in the elastic region of a part of the housing wall or a cap. In particular, there is the possibility that a length compensation is also provided. Batteries or rechargeable batteries of different batches but the same standardization can have, for example, differences in length of up to about 1 mm. Due to the generated impact movement, the vibrations are also directed to the battery compartment and the battery holder. The length compensation or the elastic means is therefore preferably designed so that not only a fuse of the power supply takes place during operation. Rather, even when inserting the batteries or accumulators whose deviations are compensated among themselves. If, for example, series circuits of batteries or rechargeable batteries are provided, the length compensation has, for example, the possibility of being able to compensate for two or more millimeter differences adapted thereto. According to one embodiment, in particular a changeable battery compartment can be seen proceed. For example, adapted to different standard sizes of batteries or accumulators one or more respective electrical connection points in the form of transmission poles are laid. This allows the electric pick to be operated with a variety of different batteries.

According to a further development, it is provided that the electric pick has a system cut-off, which is realized, for example, by the cap. The cap is for example rotatably arranged on an end face of the housing. In the cap, for example, the electrical contacts can be arranged, via which an electrical connection of juxtaposed batteries or rechargeable batteries is made possible. This electrical connection of the poles takes place, for example, via a spring which is dimensioned for the battery compartment such that a rotation into a first position produces electrical contact between the two adjacent batteries and their electrical poles and a rotation into a second position establishes the electrical connection interrupts. At the same time, the spring acts as a tensioning means. An embodiment provides, for example, that in the cap a switch is inserted. This can interrupt a series connection. For example, this can be done by decoupling the electrical poles. There is also the possibility that the switch causes a displacement of the batteries, resulting in an interruption of the electrical connection.

A further embodiment of the electric pick provides that the housing is made of an electrically conductive material, outside and inside each having an electrically insulating coating, wherein a circuit for an operation of the Electric picks passes through the housing and the circuit is interrupted by opening the housing and is closed after closing the housing.

For this purpose, for example, it is provided that the housing is made of an electrically conductive metal, and the current is conducted in the housing walls so that from the electrical energy sources to the consumer, the motor, a circuit is formed. A particularly preferred embodiment provides that the housing is closed with a cap which is screwed on. The housing and the cap are in this case electrically and externally coated inside, for example, by blackening, only at the overlapping areas contact surfaces can be provided so that here the circuit can be closed when the housing is closed with the cap. The contact surfaces can be designed as a thread. The circuit is interrupted when the housing is open. The electrical energy sources such as batteries, for example, fit exactly into the housing, so that they are fixed when closing and so the circuit is closed by contacts, the circuit runs through the housing, the insulating layer, outside and inside, shielding the circuit.

In a further embodiment of the electric pick is provided that a Hubverstellschraube for the stroke adjustment of the picking tool is preferably arranged rotatable without detent. The stroke adjustment screw is guided through a thread of the tool head of the electric pick. The Hubverstellschraube preferably forms directly, for example, a movable stop for the pick tool, wherein the Hubverstellschraube has a Hubverstellschraubenkopf, which preferably protrudes beyond the thread. Between the Hubverstellschraubenkopf and an outer surface of the tool head, for example, an elastic element, preferably an O-ring, mounted, which is clamped between the Hubverstellschraubenkopf and the outer surface of the tool head. The material of the elastic element, in particular of the O-ring, is elastic. Preferably, the Hubverstellschraube is thereby biased so that it is self-locking. However, self-locking of the Hubverstellschraube can also be realized differently, for example by the pitch of the thread of the Hubverstellschraube.

Inside the tool head, for example, the pick tool is mounted on a shaft and moves up and down on this shaft in a tilting motion. The movement in one direction is limited by the Hubverstellschraube. Furthermore, in this embodiment, a backup of Hubverstellschraube provided which can be realized, for example, that between the Hubverstellschraubenkopf and the surface of the tool head, an O-ring is attached, which consists of an elastic material. Such a backup is particularly necessary if the Hubverstellschraube could otherwise possibly solve depending on the exposed load profile. Now, when the Hubverstellschraube is screwed into the housing, the O-ring is clamped between the Hubverstellschraubenkopf and the outer surface of the tool head and pressed together so that the Hubverstellschraube is biased. In this way, it is secured and does not rotate at a periodic load in tension or compression direction, which applies the lifting movement of the pick tool on the Hubverstellschraube out. But it is also possible to provide a different way of securing the stroke adjustment can.

Both the screw-side stop, as well as the stop on the side of the picking tool can be designed differently from each other. In a preferred embodiment of the invention is located on the picking tool, a cam which meets the end of the screw, which forms the stop. The cam can be configured in various forms or the screw end can take various forms.

One embodiment provides that the stroke adjustment acts on an opening for the replaceable pick tool.

Another embodiment of the stroke adjustment of the electric pick includes vibration damping means that reduce noise in operation. An embodiment of the electric pick provides for this purpose that the screw-side stop for the picking tool is coated with a damping material, so that reduce the vibrations introduced by the picking tool in the Hubverstellschraube. A further embodiment provides that the pick-tool-side stop is coated with a damping material, and / or but the cam shape of the stop is designed particularly favorable to the noise. Furthermore, a kind of cushion of a damping material can be applied to the contact points in the attack.

According to a further embodiment, it may be provided that the means for vibration damping comprise a stop for the picking tool comprising a damping material, preferably a plug of a damping material.

In one embodiment, for example, it is provided that the plug is applied as a damping layer on the screw end. Furthermore, it can be provided that the end of the screw has a recess into which the plug is inserted in a form-fitting manner. Furthermore, it can be advantageous if the plug extends into the Hubverstellschraube or even completely protrudes through the Hubverstellschraube. Another variant provides that the plug is interchangeable.

A further embodiment of the electric pick provides that as a means for vibration damping the Hubverstellschraube is hollow drilled for stroke adjustment and in the hollow bore a coating is applied. This coating can be applied, for example, only in the hollow bore, it can extend beyond the end of the screw and continue as a coating at the end of Hubverstellschraube. A further embodiment provides that the coating in the hollow bore of the Hubverstellschraube is so thick that the entire hollow bore is filled. For example, a plug of damping material is inserted into the hollow bore.

Another embodiment provides that the tool head is replaceable.

An interchangeable tool head can take care of the need to use different tools for different applications. With the proposed electric pick different tool heads can be used, for example, one for rotation, the other for percussion. With these it is possible, inter alia, non-destructive open crossbreed locks, Bohrmuldenzylinder, disc and Stiftzuhaltungsschlösser. Thus, the electric pick can be used multiple times, for example, lock cylinders, crossbeam locks, car locks, padlocks, mushroom pins, coil pins and / or grooved pins.

A further development of the electric pick provides that the housing has one or more elevations, in particular feet, which prevent the electric picks from rolling away.

Furthermore, it can be provided that the housing has one or more elevations, in particular feet, which allow a placement of the electric pick.

Also, the electric pick may have a multi-functional control, for example in the form of a rotary switch, which is not only rotatable, but has an inner and outer ring, wherein the inner ring can also be pressed and can serve as a button.

According to a further aspect of the invention, which can be continued dependent as well as independently of the above as well as the following illustrated embodiments, a method for opening a lock by means of a hand tool in the form of an electric pick is proposed, wherein the beat frequency is changed thereby, that the electric pick is operated with a changed number of electrical energy storage. As stated above, an additional energy store is preferably added to change the beat frequency. Preferably, the electric pick is designed so that a fixed number of energy stores is used for a first area of the beat frequency and a second number of energy stores for a second area of the beat frequency, the first number being different from the second number. The first region preferably has a distance of approximately at least 1000 beats / minute from the second region of the beating frequency. Preferably, in the first region a stroke rate of about 6000 beats / minute contained, in the second region is a stroke rate of about 8000, preferably both areas do not overlap. This depends in particular on the state of charge of the respective energy store.

The battery-powered, about banana-sized device carries at its tip about 10 cm long, needle-shaped metal blade, which is inserted into the lock channel of the security lock. At the push of a button, the built-in electric motor of the electric pick sets this metal blade and thus the locking pins in the lock channel of the lock in vibration. If the applied operating frequency fails to open the lock to be opened, the operating voltage is increased. The increase of the operating voltage takes place by a further energy source is included in the circuit. In this case, for example, another battery can be added together with further recording. Or, however, the increase of the operating voltage takes place, for example, by tapping a higher operating voltage at different points of an arrangement of electrical energy stores. These can be present at least partially already in the housing. The beat rate is changed as long as using a different number of energy stores until the pins unlock because z. B. a resonance frequency was found. At the same time a slight torque is exerted on the lock rotor of the castle. This can be done for example by a corresponding shaping of the electric pick, for example by an attachment or by another device. If it is dark, the rest of the electric pick can also use a lamp, which may have this. Also, a magnifying optics may be provided. Furthermore, a stroboscope can also be provided, so that the frequency can be determined via it.

The illustrated electric pick has a battery compartment in the handle, which allows easy replacement of the power source. It is suitable both for the admission of international standard batteries such as 4 × Mignon, AA, 1.5 Volt or for rechargeable batteries.

For example, this device has the following values: Idle stroke rate 12,000 beats / minute Load stroke rate 8,000 beats / minute Weight 380 gr. Without energy sources

A further embodiment provides that the handle is also available individually, in particular retrofittable. Thus, if required older models, possibly even other models of other series or manufacturers can be retrofitted. For this purpose, it is preferred if the gear heads of both tools are compatible with each other.

In the following, various embodiments of the invention are shown by way of example in different views, without, however, limiting the invention on the basis of this. From the 1 to 8th is a structure of the electric pick out, but its shape must not be limited to the form shown. Rather, other forms can be used, as they are explained above in the prior art. Furthermore, one or more features of one or more embodiments of the following description of the figures can be linked to further developments, for example with configurations and / or features as described above. That is, the features are not limited to certain embodiments. Incidentally, the reference numerals for better orientation, without these are intended to limit the inventive concept.

Show it:

1 shows an embodiment of the electric pick in partial section with two batteries as electrical energy storage;

2 shows an embodiment of the electric pick in partial section with three batteries as electrical energy storage and a receptacle which expands the housing;

3 shows the region of the tool head of an embodiment of the electric pick in partial sectional view with a running as Hubverstellschraube stroke adjustment;

4 shows an embodiment of a Hubverstellschraube with a vibration-damping coating at the end of the screw;

5 shows an embodiment of a Hubverstellschraube with a vibration damping plug at the end of the screw, which is plugged onto the end of the screw;

6 shows an embodiment of a Hubverstellschraube with a vibration damping plug at the screw end, which extends through the hollowed Hubverstellschraube therethrough;

7 shows an embodiment of a hollow drilled stroke adjusting screw with a vibration damping coating in the screw hole;

8th shows an embodiment of an electric pick with a partial sectional view in the area of the switch and

9 shows a schematic circuit for switching between different circuits or for the use of different energy storage.

1 represents an embodiment of an electric pick 1.1 which is a first electrical energy storage 6.1 and a second electrical energy storage 6.2 uses. The two energy stores are here two batteries. In this embodiment, the electric pick works 1.1 with a slender long pick tool 13 , which is interchangeable with a pick-screw tool 4.1 is appropriate. This embodiment uses a Hubverstellschraube 2.1 in the tool head 3.1 of the pick tool 13 , This embodiment further has a rounded switch 5.1 for switching the device on and off. The operating voltage is in this model by the two illustrated electrical energy storage 6.1 . 6.2 , two batteries, ready. The operating voltage available through this electrical energy store is connected to an electric motor 8th which is simplified here. The circuit 7 runs through the housing in this embodiment 29.1 , The electrical energy storage 6.1 . 6.2 be doing so by a spring 9 tense and secured against slipping. For opening and closing the housing 29.1 and for replacing the electrical energy storage 6.1 . 6.2 can the case 29.1 with a cap 38 in this embodiment by means of a thread 10.1 be opened or closed. Furthermore, the housing 29.1 in this embodiment, outside and inside with an electrically insulating coating 11 Mistake. This electric pick 1.1 For example, the extension indicates one or more energy stores and / or switching to tapping the electrical current of only the first energy storage 6.1 or from the first and the second energy storage 6.1 . 6.2 , For example, switching can be done with a circuit like this 9 shows to be realized.

In 2 is the embodiment of 1 with an extension of the housing 29.1 in the form of a recording 12.2 shown. This electric pick 1.1 is about the recording 12.2 extended, leaving room for a third electrical energy storage 6.3 is created in the form of a battery. The housing 29.1 takes here a first electrical energy storage 6.1 , a second electrical energy storage 6.2 and a third electrical energy storage 6.3 on. In this way, the three electrical energy storage 6.3 . 6.4 . 6.5 then switched in a series connection. The operating voltages add up and thus provide the motor 8th a higher operating voltage than with only two batteries available. The joining of the recording 12.2 and the housing 29.1 is here by means of a first threaded connection 10.2 and a second threaded connection 10.3 realized.

3 represents an embodiment of an electric pick 1.3 in which case the upper area of the tool head 3.1 is shown in section. In the tool head housing 14 is a thread 15 arranged through which a Hubverstellschraube 2.3 can be screwed in or unscrewed. In this embodiment, the drive of the picking tool takes place 13.3 via an eccentric 16 that is on a drive shaft 17 is stored and by a motor 8.3 is driven. By the rotation of the eccentric 16 on the drive shaft 17 becomes the pick tool 13.3 on a wave 18 here shown in section, tilted up and down. The stroke adjustment takes place via a stop 19 the end of the screw and a cam 20 on the picking tool 13.3 is shaped. Between the stroke adjustment screw head 22 and the outer surface 24 the tool head is an O-ring 23 arranged, which is the Hubverstellschraube 2.3 put under tension and so the thread 32 the stroke adjustment screw 2.3 inhibits dissolution.

4 represents an embodiment of a Hubverstellschraube 2.4 with an O-ring 23.4 between the Hubverstellschraubenkopf 22.4 and the outer surface 24.4 the tool head, wherein at the end of the screw Hubverstellschraube a damping material 25.4 is applied in the form of a simple coating. The stop 19.4 the pick tool and the stroke adjustment screw 2.4 for stroke adjustment is in this case by the cam 20.4 and the damping coating 25.4 educated.

In 5 is another embodiment of a Hubverstellschraube 2.5 shown with an O-ring 23.5 , which between housing exterior surface 24.5 the tool head and the Hubverstellschraubenkopf 22.5 is arranged. The screw end of the Hubverstellschraube in this case has a plug 26 from a damping material, which can be plugged here form fit to the end of the screw. The stop 19.5 This is between the cam 20.5 and the stopper 26 educated.

In 6 is another embodiment of a Hubverstellschraube 2.6 shown with means for vibration damping. In this embodiment, the Hubverstellschraube 2.6 arranged so that they have an O-ring 23.6 between stroke adjustment screw head 22.6 and the outer wall 24.6 clamped in the tool head. The stroke adjustment screw 2.6 has a hollow bore 27.6 on, through which an elastic material 25.6 is attached to the Schaubenende the Hubverstellschraube. In this embodiment, the interior of the Hubverstellschraube 2.6 So the hollow bore 27.6 with a core of dämfpenden material 25.6 filled and extends through the entire hollow bore 27.6 through and forms a plug at the end of the screw 26.6 , The core of the damping material 25.6 is in this case integrally formed and molded together with the cam 20.6 a stop 19.6 ,

In 7 is a stroke adjustment screw 2.7 shown with a hollow bore 27.7 is provided. Inside the hollow bore 27.7 is a coating 28 applied, resulting from the hollow bore 27.7 continues until the end of the screw.

In 8th is another embodiment of an electric pick 1.8 shown. In a partial section around the switch 5.8 there is a break around 30 in the housing wall 33 shown. The place where the switch 5.8 is arranged, is in a depression 31 in the housing wall 33 ,

9 shows a schematic circuit for switching between a first circuit 7.1 and a second circuit 7.2 , The switch 37 can have three positions. In the first position POS. 1 is the engine 8.4 with the first circuit 7.1 to the fourth electrical energy storage 34 connected. POS. Fig. 2 illustrates a standstill position in which no current flows. POS. 3 closes the fifth electrical energy storage 35 and the sixth electrical energy storage 36 with the second circuit to the motor 8.2 at. By switching between the circuits, the operating voltage and thus the beat frequency is set in stages. In addition to three switch positions and only two may be present, preferably with a breaker contact. Also can more switch positions be present, for. B. regardless of the number of switchable energy storage.

LIST OF REFERENCE NUMBERS

1.1, 1.3, 1.8

Electro Pick

2.1, 2.3, 2.4, 2.5, 2.6, 2.7

Hubverstellschraube

3, 3.1

tool head

4.1

Pick-tool-screw

5.1, 5.8

switch

6.1, 6.2, 6.3

electrical energy storage

7, 7.1, 7.2

circuit

8, 8.3, 8.4

engine

9

feather

10.1

first thread connection

10.2

second threaded connection

10.3

third threaded connection

11

electrically insulating housing coating

12.2

admission

13, 13.3

Pick-tool

14

Housing of the tool head

15

thread

16

eccentric

17

drive shaft

18

wave

19, 19.4, 19.5, 19.6

attack

20, 20.4, 20.5, 20.6

cam

23, 23.4, 23.5, 23.6

O-ring

22, 22.4, 22.5, 22.6

Hubverstellungschraubenkopf

24, 24.4, 24.5, 24.6

Outer surface of the tool head

25.4, 25.6

damping material

26, 26.6

Graft

27.6, 27.7

hollow bore

28

Coating (in the hollow bore)

29.1

casing

30

Interruption in the housing wall ( 33 )

31

Recess in the housing wall

32

Hubverstellungsschraubengewinde

33

housing wall

34

fourth electrical energy storage

35

fifth electrical energy storage

36

sixth electrical energy storage

37

switch

38

cap

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202005016435 U1 [0002]
• DE 202010010912 U1 [0002]
• DE 202011001353 U1 [0002]
• DE 10201003300 A1 [0002]

Claims (10)

Electric pick ( 1.1 . 1.3 . 1.8 ) in the form of a transportable hand tool with an electric pick ( 1.1 . 1.3 . 1.8 ) Interchangeable pick tool ( 13 . 13.3 ), a tool head ( 3 . 3.1 ), a stroke adjustment, a housing ( 29.1 ) and a beat frequency of the pick tool ( 13 . 13.3 ) using a different number of electrical energy stores ( 6.1 . 6.2 . 6.3 . 34 . 35 . 36 ) in the housing ( 29.1 ), wherein an adjustment of the beat frequency via an arrangement of a different number of electrical energy stores ( 6.1 . 6.2 . 6.3 . 34 . 35 . 36 ) in the housing ( 29.1 ) he follows. Electric pick ( 1.1 . 1.3 . 1.8 ) according to claim 1, characterized in that a size of the housing ( 29.1 ) by adding a recording ( 12.2 ) of an electrical energy store ( 6.1 . 6.2 . 6.3 . 34 . 35 . 36 ) is changed. Electric pick ( 1.1 . 1.3 . 1.8 ) according to one of the preceding claims, characterized in that the housing ( 29.1 ) is made of an electrically conductive material, externally and internally an electrically insulating coating ( 11 ), wherein a circuit ( 7 . 7.1 . 7.2 ) to an operation of the electric pick ( 1.1 . 1.3 . 1.8 ) through the housing ( 29.1 ) and the circuit ( 7 . 7.1 . 7.2 ) by opening the housing ( 29.1 ) and after closing the housing ( 29.1 ) closed is. Electric pick ( 1.1 . 1.3 . 1.8 ) according to one of the preceding claims, characterized in that a Hubverstellschraube ( 2.1 . 2.3 . 2.4 . 2.5 . 2.6 . 2.7 ) for the stroke adjustment of the pick tool ( 13 . 13.3 ) is arranged rotatable restless, wherein the Hubverstellschraube ( 2.1 . 2.3 . 2.4 . 2.5 . 2.6 . 2.7 ) by a thread ( 15 ) of the tool head ( 3 . 3.1 ) of the electric pick ( 1.1 . 1.3 . 1.8 ) and a movable stop ( 19 . 19.4 . 19.5 . 19.6 ) for the pick tool ( 13 . 13.3 ), wherein the Hubverstellschraube ( 2.1 . 2.3 . 2.4 . 2.5 . 2.6 . 2.7 ) a Hubverstellschraubenkopf ( 22 . 22.4 . 22.5 . 22.6 ), which over the thread ( 32 protrudes, and between the Hubverstellschraubenkopf ( 22 . 22.4 . 22.5 . 22.6 ) and an outer surface ( 24 . 24.4 . 24.5 . 24.6 ) of the tool head an O-ring ( 23 . 23.4 . 23.4 . 23.6 ) mounted between the Hubverstellschraubenkopf ( 22 . 22.4 . 22.5 . 22.6 ) and the outer surface ( 24 . 24.4 . 24.5 . 24.6 ) of the tool head ( 3 . 3.1 ) is clamped, wherein the material of the O-ring ( 23 . 23.4 . 23.4 . 23.6 ) is elastic and the Hubverstellschraube ( 2.1 . 2.3 . 2.4 . 2.5 . 2.6 . 2.7 ) is biased so that it is self-locking. Electric pick ( 1.1 . 1.3 . 1.8 ) according to one of the preceding claims, characterized in that the stroke adjustment comprises means for vibration damping, which reduce a noise in an operation. Electric pick ( 1.1 . 1.3 . 1.8 ) according to claim 5, characterized in that the means for vibration damping a stop ( 19 . 19.4 . 19.5 . 19.6 ) for the pick tool ( 13 . 13.3 ), which can be used as a plug ( 26 . 26.6 ) of a damping material ( 25.4 . 25.6 ) is executed. Electric pick ( 1.1 . 1.3 . 1.8 ) according to claim 5 to 7, characterized in that as means for vibration damping, the Hubverstellschraube ( 2.1 . 2.3 . 2.4 . 2.5 . 2.6 . 2.7 ) is hollow drilled for stroke adjustment and in the hollow bore ( 27.6 . 27.7 ) a coating ( 28 ) is applied. Electric pick ( 1.1 . 1.3 . 1.8 ) according to one of the preceding claims, characterized in that the housing ( 29.1 ) a switch ( 5.1 . 5.8 ) for actuating the electric pick ( 1.1 . 1.3 . 1.8 ) interrupted by an interruption ( 30 ) in the housing wall ( 33 ) in the housing ( 29.1 ) and wherein the switch ( 5.1 . 5.8 ) in a housing wall ( 33 ) shaped recess ( 31 ) is embedded. Electric pick ( 1.1 . 1.3 . 1.8 ) according to one of the preceding claims, characterized in that the tool head ( 3 . 3.1 ) is interchangeable. Method for opening a lock by means of a hand tool in the form of an electric pick ( 1.1 . 1.2 . 1.8 ), whereby the beat frequency is changed by the fact that the electric pick ( 1.1 . 1.3 . 1.8 ) with a changed number of electrical energy stores ( 6.1 . 6.2 . 6.3 . 34 . 35 . 36 ) is operated.

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