Device for driving a fastening element into a base, method for replacing an energy transmission element, and an energy transmission element

Abstract

The invention relates to a device 20 for driving a fastening element into a substrate, comprising a housing 21, an energy storage device 22 for storing energy, an energy transfer element 30 for transferring energy from the energy storage device 22 to the fastening element, wherein the energy transfer element 30 is configured to move in a channel 23 in the housing 21 along a driving direction 25, and an energy transfer device 34 for transferring energy from the energy storage device 22 to the energy transfer element 30. The energy transfer device 34 has at least one flexible force transmission element 35 which is operatively connected to the energy transfer element 30, wherein the housing 21 has a housing interface 24 which is detachable from the housing 21 in order to remove the energy transfer element 30 from the channel 23, in particular in the driving direction 25.Furthermore, the invention relates to a method for replacing an energy transfer element 30 and to an energy transfer element 30.

Description

[0001] The present invention relates to a device for driving in a fastening element according to claim 1 and a method for replacing an energy transfer element according to claim 10 and an energy transfer element according to claim 15. Technological background

[0002] Various drive concepts exist for driving nails and fasteners into substrates such as wood, steel, and concrete. For applications requiring high driving energy, propellant cartridges are used to supply the necessary energy. One cartridge is required for each fastener. For medium driving energy requirements, gas-fired devices and powder-operated devices with a stationary compressor are used. Battery-powered devices are available for low driving energy requirements.

[0003] Driving nails requires high power. Batteries have a high energy density but can only provide very limited power. Therefore, all battery-operated devices require an energy storage device. This energy storage device allows the energy to be released very quickly, enabling the high power output required.

[0004] The general trend is to extend battery-powered devices to areas requiring higher energy inputs. This will allow them to replace combustion-based devices. Battery-powered devices are easier to use, cheaper, and have a significantly better CO2 footprint than combustion-based devices.

[0005] In driving tools, it is known to temporarily store mechanical energy in a mechanical energy storage device and transfer this energy abruptly to a fastener using a setting piston. If a fastener that is too long is used to fasten the workpiece, or if a long fastener is placed directly onto a hard surface, the setting piston is significantly decelerated, and the remaining energy in the storage device causes a massive recoil of the driving tool. The greater the tool's energy and the longer the fastener, the greater the recoil.

[0006] Prior art WO23168393 A1 discloses a driven fastener driver comprising a housing defining the cylinder support, a drive unit support, and a grip section located away from the drive unit support. The grip section defines a grip axis. A piston can be moved within a cylinder from a top dead center (TDC) position to a driven or bottom dead center (BDC) position. Attached to the piston is a drive blade that moves along a drive axis from the TDC position to the BDC position to drive a fastener into a workpiece. The drive blade can be disengaged from the drive unit piston.

[0007] Prior art patent CN117506813 A discloses a nail gun. The housing assembly comprises a gun body, a mounting frame body located at the front end of the gun body, a top cover of the gun body that is detachably located at the rear end of the gun body, and a nail clamp connected to the lower part of the mounting frame body. The energy storage cavity consists of a large cylinder located within the gun body and a small cylinder wrapped inside the large cylinder. The punching needle assembly comprises a punching needle body and a piston attached to the rear end of the punching needle body. The front end of the punching needle body passes through the cylinder head seat and projects into the mounting frame body to drive the nail into the mounting frame body.After removing the top cover of the gun body, the cylinder head is exposed from the rear of the gun body, and the valve insert is installed on the cylinder head. After removing the cylinder head, the small cylinder is exposed from the rear of the large cylinder, allowing the small cylinder and the punch needle assembly to be removed or replaced.

[0008] A disadvantage of the solutions mentioned above is that the setting pistons of the nail-setting devices can only be replaced with great effort, since the nail-setting devices are gas-driven devices.

[0009] WO 2015 / 082262 A1 is known from the prior art. This document discloses a device for driving a fastening element into a substrate, comprising a mechanical energy storage device for storing mechanical energy; an energy transfer element for transferring energy from the mechanical energy storage device to the fastening element; an energy transfer device for transferring energy from an energy source to the mechanical energy storage device; and a housing with a first and a second housing part. The first housing part is connected to the second housing part to form an interior space between the first and second housing parts in which the mechanical energy storage device is located. Description of the invention

[0010] One object of the invention is to avoid at least one of the disadvantages of the prior art. In particular, an improved device for driving a fastening element into a substrate is to be created, whereby the service life of the device is extended. An improved method for driving in a fastening element as well as an improved energy transmission element are to be provided.

[0011] This problem is solved by the features of the independent patent claims. Advantageous developments are set out in the figures and in the dependent patent claims.

[0012] An inventive device for driving a fastening element into a substrate, comprising a housing, an energy storage device for storing energy, an energy transfer element for transferring energy from the energy storage device to the fastening element, wherein the energy transfer element is configured to move in a channel within the housing along a driving direction, and an energy transfer device for transferring energy from the energy storage device to the energy transfer element. The energy transfer device has at least one flexible force transmission element which is operatively connected to the energy transfer element, wherein the housing has a housing interface which is detachable from the housing in order to remove the energy transfer element from the channel, particularly in the driving direction.

[0013] This type of device for driving in a fastener allows for easy removal of the energy transfer element by opening the housing interface. The user can then replace the energy transfer element, for example, on a construction site. The device is immediately ready for use again, and maintenance downtime is avoided. Sending the device back to the manufacturer is unnecessary. This ensures a long service life for the device on a construction site. The service life is defined as the period from the first replacement of the energy transfer element to the next replacement. Due to the high driving energy, the tip of the energy transfer element wears down more quickly, so replacement may be necessary to ensure reproducible driving of the fasteners over many driving cycles.A device with a flexible force transmission element can be manufactured that can drive fasteners into the ground with energies exceeding 90 joules, and up to 300 joules, and is also low-maintenance. For example, the flexible force transmission element can be a belt, a rope, a chain, or the like. A belt or rope, for instance, can be easily and reproducibly positioned on the force transmission element. A chain is a largely inelastic tensile element, allowing for efficient energy transfer. For example, the force transmission element could be a setting piston.

[0014] Removing the energy transfer element from the channel in the drive direction simplifies the design of the housing interface. Since the channel is already present, the energy transfer element can be easily removed from the housing along the channel. Removing guide elements or multiple components of the energy transfer device is largely unnecessary. The housing interface is advantageously located in the area of ​​the channel opening on the housing.

[0015] Alternatively or additionally, the energy transfer element can be removed from the channel in a direction that is essentially perpendicular to the insertion direction. It is conceivable that the housing interface is located at a distance from the opening of the channel on the housing. For example, the housing has a movable or removable housing part, a half-shell, to remove the energy transfer element from the channel.

[0016] The flexible power transmission element extends, in particular, at least partially along the energy transmission element, so that the energy from the energy storage can be transferred in an improved manner and the energy transmission element can be moved by the flexible power transmission element in the direction of insertion, advantageously in a positionally secure manner.

[0017] Preferably, the at least one flexible force transmission element is detachable from the energy transmission element in order to remove the energy transmission element from the channel, particularly in the direction of insertion. Known devices for driving fasteners into the substrate have energy transmission elements that are permanently connected to the flexible force transmission element. Detaching the energy transmission element from the flexible force transmission element simplifies the replacement of the energy transmission element.

[0018] In particular, an additional flexible power transmission element is provided. This improves the connection of the energy transmission element to the energy transmission device. For example, at least one flexible power transmission element and the additional power transmission element are connected to each other section by section. This allows the energy transmission element to be easily coupled to both power transmission elements.

[0019] Preferably, at least one flexible force transmission element is arranged on a coupling element, which can be positioned on a coupling section of the energy transmission element. The coupling element improves the positionally stable interaction of the flexible force transmission element with the energy transmission element. In particular, the coupling element is a coupling plate that is rigidly connected to the flexible force transmission element. The energy transmission element can be coupled to the coupling plate. Since typically only the tip of the energy transmission element wears down due to the numerous driving-in processes, in a two-part energy transmission element, only the part with the tip—that is, the part that interacts directly with a fastening element during the driving-in process—needs to be replaced. This provides a resource-saving and cost-effective way to replace the energy transmission element.In particular, the tip of the energy transfer element can be unscrewed.

[0020] Preferably, at least one flexible force transmission element can be positioned on a coupling section of the energy transmission element. The energy transmission element has a coupling section that interacts with the flexible force transmission element in a positionally fixed manner, at least in a first position of the energy transmission element. The flexible force transmission element is movable along the insertion direction from the first position to a second position in the housing channel along with the energy transmission element. The flexible force transmission element extends at least partially along the energy transmission element. The coupling section can have fixing projections that can interact with a fixing unit in the device. For example, the fixing unit comprises several fixing elements that engage with the fixing projections of the energy transmission element.When changing the energy transfer element, the fixing elements can be detached from the fixing projections.

[0021] Preferably, the at least one flexible force transmission element has at least one opening in which the energy transmission element can be positioned. This allows the energy transmission element to be easily coupled to the energy transmission device. Such a flexible force transmission element is simple and inexpensive to manufacture. Furthermore, the energy transmission element, which fits into the opening, can be rotationally symmetrical and thus manufactured cost-effectively.

[0022] In particular, the at least one flexible force transmission element has at least one opening into which the energy transmission element can be inserted, at least partially. The opening can be designed like a buttonhole or a slot into which the energy transmission element can be easily inserted. For example, the energy transmission element has a pin that can be reproducibly inserted into the buttonhole when changing the energy transmission element.

[0023] Preferably, the at least one flexible force transmission element has a reinforcement in the area of ​​the at least one opening. This reduces wear of the flexible force transmission element in the area of ​​the opening over the device's operating cycle.

[0024] The reinforcement specifically includes an eyelet. An eyelet offers the advantage that the tensile fibers of the flexible power transmission element remain continuous. For example, in the case of a belt used as a flexible power transmission element, the tensile fibers of the belt are continuous, thus minimizing belt wear. Such an eyelet can be made of metal or plastic. It can also be manufactured as a plastic part by injection molding directly onto the flexible power transmission element.

[0025] Alternatively or additionally, the reinforcement includes a seam. For example, the seam is applied to the flexible force transmission element before the opening is created, and then the opening is made. This prevents subsequent fraying.

[0026] Alternatively or additionally, the reinforcement includes at least one reinforcing ring. This prevents the opening from tearing open by means of a tensile-resistant reinforcing ring made of various materials (textiles, plastics, metals, etc.).

[0027] Preferably, the at least one flexible force transmission element has an elastomeric coating in the area of ​​the at least one opening. The elastomeric coating extends the service life of the flexible force transmission element because it cushions the increased load and provides a larger contact area. The elastomeric coating acts as padding, increasing friction and thus preventing the flexible force transmission element from slipping off the energy transmission element.

[0028] Alternatively or additionally, the coupling section of the energy transfer element has an elastomer coating. The elastomer coating extends the service life of the flexible power transmission element because it protects the flexible power transmission element from edges on the energy transfer element and prevents abrasion of the flexible power transmission element.

[0029] Preferably, the housing interface has a bayonet fitting. This allows the user to easily detach the housing interface from the housing. Alternatively or additionally, the housing interface has a threaded connection, a sliding fit with locking mechanism, a hinged half-shell for lateral removal of the energy transfer element, a transverse bolt, or indexing cams.

[0030] Preferably, at least one sensor is provided to monitor the disconnection of the housing interface. The sensor detects when the housing interface is disconnected or opened. The sensor can be connected to a display to show the current status of the housing interface. In particular, the sensor can be connected to a control unit within the device, thus preventing, for example, the disconnection or opening of the housing interface if the device is in an unintended operating state. This improves the operational reliability of the device.

[0031] Alternatively or additionally, at least one actuator is provided to prevent the housing interface from opening. This actuator can act as a locking mechanism, ensuring that the housing interface can only be released or opened in a specific operating state. It is advantageous to have multiple actuators, so that, for example, the trigger for initiating the driving process on the device is prevented from being triggered by another actuator if, for instance, the housing interface is released or the energy transfer element is in a tensioned state.

[0032] Alternatively or additionally, the housing interface is mechanically connected to the housing in such a way that the energy transfer element is released before the housing interface is disconnected. This embodiment requires neither an actuator nor a sensor to prevent the housing interface from opening unintentionally. In particular, a device is provided that utilizes the stroke when unscrewing a guide of the energy transfer element to mechanically control certain functions. Examples of this function would be to provide time for non-motorized release or to deactivate a locking mechanism of the energy transfer element in the unpressed state, thus enabling the removal of the energy transfer element.

[0033] Preferably, the energy transmission device comprises a roller assembly, which has at least one roller holder with a first roller on which the at least one flexible power transmission element is movably arranged. The roller assembly and the at least one flexible power transmission element serve as a transmission mechanism. In particular, several rollers are provided in the roller assembly to create an efficient transmission for the flexible power transmission element.

[0034] An inventive method for replacing an energy transmission element from a device for driving a fastening element into a substrate comprises at least the following steps: a) Opening a housing interface from the housing of the device; b) Decoupling a first energy transfer element from at least one flexible force transmission element of an energy transfer device; c) Removing the first energy transfer element from a channel in the housing, in particular in the direction of insertion of the device; d) Inserting a second energy transfer element into the channel in the housing, in particular in the opposite direction to the direction of insertion; e) Coupling the second energy transfer element with the at least one flexible force transmission element of the energy transfer device; f) Arranging the housing interface on the housing of the device.

[0035] This method for replacing an energy transmission element allows for easy removal of the element by opening the housing interface. The user can then replace the energy transmission element, for example, on a construction site. The device is immediately ready for use again, and extended maintenance downtime is avoided. Sending the device back to the manufacturer is unnecessary. This ensures a long service life for the device on a construction site. A device with a flexible force transmission element can be manufactured that can drive fasteners into the ground with energies exceeding 90 joules, and up to 300 joules.Due to the high driving energy, the energy transfer element wears out more quickly, so that a replacement of the energy transfer element may be necessary to ensure that the fasteners can be driven in reproducibly over many driving cycles. In particular, the method is carried out on the device described herein and preferably in the specified sequence.

[0036] Preferably, the first energy transfer element is released before step a). This allows the housing interface to be safely opened and the energy transfer element to be safely removed from the channel.

[0037] In particular, at least one flexible force transmission element is relaxed. This means that at least one force transmission element and the energy transmission element can be easily separated and reconnected. The relaxed state of a flexible force transmission element can involve a low preload – for example, less than 200 Newtons. The joining force required for the user to easily connect a setting piston to the flexible force transmission element depends on several parameters, such as the angle of the setting piston's tip, the size of the opening in the flexible force transmission element, the diameter of the coupling section on the energy transmission element, and the preload on the flexible force transmission element.For example, with a longitudinal extent of the opening on the flexible force transmission element of 40 mm and a coupling section of 19 mm, a setting piston tip full angle of 60° to 120° and a preload on the flexible force transmission element of 100 Newtons to 400 Newtons are acceptable in order to ensure safe replacement of the setting piston despite the preload.

[0038] Preferably, in step e), a coupling section of the energy transfer element is brought into operative connection with the at least one flexible force transmission element. This creates a fixed connection between the energy transfer element and the at least one flexible force transmission element, which remains positionally stable during operation of the device.

[0039] Preferably, at least one sensor monitors the separation of the housing interface from the housing. The sensor detects the separation or opening of the housing interface.

[0040] An energy transmission element according to the invention for a device described herein has at least one coupling section for coupling to at least one flexible force transmission element of an energy transmission device.

[0041] Further advantages, features and details of the invention will become apparent from the following description, in which exemplary embodiments of the invention are described with reference to the drawings.

[0042] The list of reference numerals, like the technical content of the patent claims, and

[0043] Figures are an integral part of the revelation. The figures are described in a coherent and comprehensive manner. Identical reference symbols signify identical components; reference symbols with different indices indicate functionally identical or similar components.

[0044] The invention is explained in more detail with reference to exemplary embodiments in the following figures. The list of reference numerals forms part of the disclosure.

[0045] Positional references, such as "top", "bottom", "right" or "left", refer to the corresponding representations and are not to be understood as restrictive.

[0046] Although the invention is illustrated and described in detail by means of the figures and the accompanying description, this illustration and detailed description are to be understood as illustrative and exemplary and not as limiting the invention. It is understood that those skilled in the art may make modifications and adaptations without departing from the scope of the following claims. In particular, the invention also includes embodiments with any combination of features mentioned or shown above with regard to various aspects and / or embodiments.

[0047] The invention also includes individual features shown in the figures, even if they are shown there in conjunction with other features and / or are not mentioned above. Furthermore, the term "comprises" and derivatives thereof does not exclude other elements or steps. Likewise, the indefinite article "a" or "an" and derivatives thereof does not exclude a plurality. The functions of several features listed in the claims can be fulfilled by a single unit. The terms "essentially," "approximately," "about," and the like, in conjunction with a property or value, also define precisely that property or value. All reference numerals in the claims are not to be understood as limiting the scope of the claims. Character description

[0048] The figures are described in a coherent and comprehensive manner. Identical reference symbols indicate identical components. They show Fig. 1 : a first embodiment of a device according to the invention for driving a fastening element into a substrate with a housing interface on the housing in a sectional view, Fig. 2 : the device according to Fig. 1 with the housing interface detached from the housing in a sectional view Fig. 3 : a first embodiment of a flexible force transmission element for a device according to Fig. 1 with an opening in a supervisory, Fig. 4 : a second embodiment of a flexible force transmission element for a device according to Fig. 1 with an opening in a supervisory, Fig. 5 : a third embodiment of a flexible force transmission element for a device according to Fig. 1 with an opening in a supervisory, Fig. 6: a fourth embodiment of a flexible force transmission element for a device according to Fig. 1 with an opening in a supervisory, Fig. 7 : a first embodiment of an energy transfer element for the device according to Fig. 1 in a first position relative to the flexible force transmission element in a side view, Fig. 8 : the energy transfer element according to Fig. 7 in a second position relative to the flexible force transmission element in a side view, Fig. 9 : the energy transfer element according to Fig. 7 in a third position relative to the flexible force transmission element in a side view, Fig. 10 : the energy transfer element according to Fig. 7 in a fourth position relative to the flexible force transmission element in a side view, Fig. 11 : a second embodiment of an energy transfer element for the device according to Fig. 1 in a side view, Fig. 12 : a fifth embodiment of a flexible force transmission element for a device according to Fig. 1 with an opening in a supervisory, Fig. 13 : a third embodiment of an energy transfer element for the device according to Fig. 1 with the flexible power transmission element according to Fig. 12 in a side view, Fig. 14 : a fourth embodiment of an energy transfer element for the device according to Fig. 1 in a side view, Fig. 15 : the energy transfer element of the device according to Fig. 14 in a sectional view, Fig. 16 : a fifth embodiment of an energy transfer element for the device according to Fig. 1 in a sectional view, Fig. 17 : a sixth embodiment of an energy transfer element for the device according to Fig. 1 in a sectional view, and Fig. 18: another embodiment of the device according to the invention for driving a fastening element into a substrate with the housing interface on the housing in a sectional view. Implementation of the invention

[0049] Figure 1 and Figure 2Figure 20 shows a first embodiment of a device 20 for driving a fastener into a substrate, and the general structure of the device 20, including a first embodiment of an energy transfer element 30, is disclosed. The device 20 shown is a nail-driving tool for driving nails into concrete or steel, which are generally referred to as fasteners. The device comprises a housing 21 with a housing interface 24, a spring as a mechanical energy storage device 22 for storing energy, and a setting piston as an energy transfer element 30 for transferring energy from the energy storage device 22 to the fastener. The energy transfer element 30 is designed to move in a channel 23 in the housing 21 in a driving direction 25. The energy transfer device 34, which includes a transmission gear 40, is arranged between the spring and the energy transfer element 30.The energy transfer device 34 serves to transfer energy from the energy storage device 22 to the energy transfer element 30, wherein the energy transfer device 34 comprises at least one band as a flexible force transmission element 35. The flexible force transmission element 35 is operatively connected to the energy transfer element 30. The housing interface 24 is detachable from the housing in order to pull the energy transfer element 30 out of the channel 23 in the driving direction 25 (see arrow in ). Figure 2 ).

[0050] The energy transmission device 34 has a roller train 41, which has several roller holders 42 with a roller 43 on which the at least one flexible power transmission element 35 is movably arranged. The roller train 41 and the at least one flexible power transmission element 35 form the transmission gear 40. The flexible power transmission element 35 is tensioned and released by means of the roller train 41 and the spring. The flexible power transmission element 35 is moved against the driving direction 25 by means of a spindle drive 45 to tension the spring. When the driving process is initiated, the spring is released and the energy transmission element 35 is moved in the driving direction 25. During the acceleration of the energy transmission element 35, the force of the spring acts on the energy transmission element 35 via the transmission gear 40.The flexible force transmission element 35 is a tensile element designed as a band, which extends at least section by section along the energy transmission element 30.

[0051] The flexible force transmission element 35 is arranged section by section in the energy transmission element 30, wherein the energy transmission element 30 has a coupling section 31.

[0052] A sensor 26 is provided to monitor the disconnection of the housing interface 24. Furthermore, an actuator 27 is provided to prevent the opening of the housing interface 24.

[0053] In the area of ​​the housing interface 24 in the housing 21, a braking device 46 is provided for braking the energy transfer element 30. The braking device 46 has a damping element 47 made of plastic to efficiently brake the energy transfer element 30. The energy transfer element 30 has a braking section 32 that interacts with the damping element 47 of the braking device 46 during braking. The damping element 47 can be removed from the channel 23 when the housing interface 24 is detached in the drive direction 25. The energy transfer element 30 can then be easily pulled out of the channel 23.

[0054] A return mechanism 50 is provided to return one of the energy transfer elements disclosed herein to its initial position. The respective energy transfer element can be returned in a direction opposite to the direction of insertion 25. The return mechanism 50 comprises return elements 51, 52, which can be coupled to the energy transfer element. The return mechanism 50 uses the spindle drive 45 to return the energy transfer element by means of the spindle drive 45 and the return elements 51, 52.

[0055] Figure 3Figure 1 shows a first embodiment of a flexible force transmission element 35 for the device 20. The flexible force transmission element 35, designed as a band, has a buttonhole as an opening 36 into which at least the coupling section 31 of the energy transmission element 30 can be inserted, at least partially. The opening 36 has a seam on its sides as reinforcement 37, so that the opening 36 remains dimensionally stable during operation of the device 20 and tearing of the opening 36 due to tensile forces on the flexible force transmission element 35 is prevented.

[0056] Figure 4Figure 1 shows a second embodiment of a flexible force transmission element 135 for the device 20. The flexible force transmission element 135, designed as a band, has an opening 136 into which at least the coupling section 31 of the energy transmission element 30 can be inserted, at least partially. The opening 36 has reinforcing rings 137 on its sides.

[0057] Figure 5 Figure 1 shows a third embodiment of a flexible force transmission element 235 for the device 20. The flexible force transmission element 235, designed as a band, has a slot as an opening 236 into which at least the coupling section 31 of the energy transmission element 30 can be inserted, at least partially. The opening 236 has reinforcements 237 on its sides, which are produced, for example, by heat, ultrasound, or radio frequency.

[0058] Figure 6Figure 1 shows a fourth embodiment of a flexible force transmission element 335 for the device 20. A first and a further band, as first and further flexible force transmission elements 335 and 335a, are sectionally connected to each other to form an opening 336 into which at least the coupling section 31 of the energy transmission element 30 can be inserted, at least sectionally. The connections serve as reinforcements 337.

[0059] The Figure 7 and Figure 10 The first embodiment of the energy transmission element 30, designed as a setting piston, is shown in the channel 23 of the device 20 in different positions relative to the flexible force transmission element 35, according to the Figure 1 and the Figure 4 . The energy transfer element 30 has a pin 38 that can be inserted into the opening 36. The following are shown: Figure 8 and the Figure 9 ,how the mandrel 38 is inserted into the opening 36 against the direction of insertion 25 and pushed towards the coupling section 31 until the coupling section 31 is on the flexible power transmission element 35 according to Figure 10 The energy transfer element 30 moves in the coupled state in channel 23 together with the flexible force transmission element 35. The removal of the energy transfer element 30 takes place in reverse order, whereby the energy transfer element 30 is pulled out of channel 23.

[0060] The Figure 11 Figure 1 shows the second embodiment of the energy transfer element 130 designed as a setting piston in the channel 23 of the device 20 and differs from the energy transfer element 30 according to Figure 2. Figures 7 to 10 by the fact that an elastomer pad 144 is arranged on the coupling section 131 of the energy transfer element 130.

[0061] Figure 12Figure 5 shows a fifth embodiment of a flexible force transmission element 435 for the device 20. The flexible force transmission element 435, designed as a band, has an opening 436 into which at least the coupling section 31 of the energy transmission element 30 can be inserted, at least partially. The opening 436 has an eyelet on its sides as reinforcement 437.

[0062] The Figure 13 Figure 1 shows the third embodiment of the energy transfer element 230 designed as a setting piston in the channel 23 of the device 20 and differs from the energy transfer element 30 according to Figure 2. Figures 7 to 10 by the fact that the reinforcement 437 designed as an eyelet of the flexible power transmission element 435 according to Figure 12 fits into the coupling section 231 of the energy transfer element 230. The energy transfer element 230 is arranged in the opening 436.

[0063] The Figure 14 and the Figure 15Figure 1 shows the fourth embodiment of the energy transfer element 330 designed as a setting piston in the channel 23 of the device 20, which differs from the energy transfer element 30 according to Figure 2. Figures 7 to 10 This differs in that it has fixing projections 333 which interact with a fixing unit 339 of a coupling element 355 in the device 20. The fixing unit 339 comprises fixing elements 339a which engage in the fixing projections 333 of the energy transfer element 330. When the energy transfer element 330 is changed, the fixing elements 339a are released from the fixing projections 333. The flexible force transmission element 335 rests against the coupling section 331 and extends at least partially along the energy transfer element 330 and is guided by the rollers 43.

[0064] The Figure 16Figure 1 shows the fifth embodiment of the energy transfer element 430 designed as a setting piston in the channel 23 of the device 20 and differs from the energy transfer element 30 according to Figure 2. Figures 7 to 10 This is achieved by the presence of a coupling element 455, which is positioned at the coupling section 431 of the energy transmission element 430. The coupling element 455 is a coupling plate that is rigidly connected to the flexible force transmission element 435. The energy transmission element 430 is coupled to the coupling section 431 on the coupling plate. The flexible force transmission element 435 rests against the coupling section 431 and extends, at least partially, along the energy transmission element 430 and is guided by the rollers 43.

[0065] The Figure 17Figure 6 shows the sixth embodiment of the energy transfer element 530 designed as a setting piston in the channel 23 of the device 20 and differs from the energy transfer element 430 according to Figure 7. Figure 16 This is achieved by the fact that the energy transfer element 530 is designed as a single piece. The flexible force transmission element 535 is attached at its ends to the coupling element 555. The coupling element 555 has a coupling element opening 556 into which the energy transfer element 530 can be inserted section by section. The coupling section 531 of the energy transfer element 530 couples with the coupling element section 556 of the coupling element 555.

[0066] Figure 18 Figure 1 shows a further embodiment of a device 120 for driving a fastening element into a substrate. Device 120 differs from the device according to Figure 1. Figure 1by the fact that the housing interface 124 is arranged at a distance from the opening of the channel 23 on the housing 21. This allows one of the previously described energy transfer elements 30, 130, 230, 330, 430, 530 to be removed from the channel 23 in a direction that is essentially perpendicular to the insertion direction 25.

[0067] An inventive method for replacing an energy transmission element from a device for driving a fastening element into a substrate is described by means of the Figure 1 up to Figure 10 explained. The procedure includes at least the following steps: a) Opening a housing interface 24 from the housing 21 of the device 20; b) Decoupling a first energy transfer element from at least one flexible force transmission element 35 of an energy transfer device 34; c) Removing the first energy transfer element from a channel 23 in the housing 23 in the insertion direction 25 of the device 20; d) Inserting a second energy transfer element 30 into the channel 23 in the housing 21 in the opposite direction to the insertion direction 25; e) Coupling the second energy transfer element 30 with the at least one flexible force transmission element 35 of the energy transfer device 34; f) Arranging the housing interface 24 on the housing 21 of the device 20.

[0068] Figures 7 to 11 and Figures 13 to 17Figure 1 shows energy transmission elements 30, 130, 230, 330, 430, 530 for a device 20, 120 described herein, with at least one coupling section 31, 131, 231, 331, 431, 531 for coupling to at least one flexible force transmission element 35, 135, 235, 335, 435, 535. Reference symbol list

[0069] 20 Device 21 Housing 22 Energy storage / spring 23 Channel 24 Housing interface 25 Drive direction 26 Sensors 27 Actuator 30 Energy transfer element / setting piston 31 Coupling section 32 Brake section 34 Energy transfer device 35 Flexible power transmission element / belt 36 Opening 37 Reinforcements 38 Mandrel 40 Transmission gear 41 Roller pull 42 Roller holder 43 Rollers 45 Spindle drive 46 Brake device 47 Damping element 50 Return device 51 Return element 52 Return element 120 Device 124 Housing interface 130 Energy transfer element / setting piston 131 Coupling section 135 Flexible power transmission element / belt 136 Opening 137 Reinforcements 144 Elastomer support 230 Energy transmission element / setting piston 231 Coupling section 235 Flexible force transmission element / band 236 Opening 237 Reinforcements 330 Energy transmission element / setting piston 331 Coupling section 333 Fixing projections 335 Flexible force transmission element / band 335a Flexible force transmission element / band 336 Opening337 Reinforcements 339 Fixing unit 339a Fixing elements 355 Coupling element 430 Energy transfer element / setting piston 431 Coupling section 435 Flexible force transmission element / band 436 Opening 437 Reinforcements 455 Coupling element 530 Energy transfer element / setting piston 531 Coupling section 535 Flexible force transmission element / band 555 Coupling element 556 Coupling element opening

Claims

1. Device (20; 120) for driving a fastening element into a substrate, comprising a housing (21), an energy storage device (22) for storing energy, an energy transfer element (30: 130; 230; 330; 430; 530) for transferring energy from the energy storage device (22) to the fastening element, wherein the energy transfer element (30: 130; 230; 330; 430; 530) is configured to move in the housing (21) in a channel (23) along a driving direction (25), an energy transfer device (34) for transferring energy from the energy storage device (22) to the energy transfer element (30: 130; 230; 330; 430; 530), wherein the energy transfer device (34) comprises at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) which is operatively connected to the energy transfer element (30: 130; 230; 330; 430; 530), wherein the housing (21) has a housing interface (24;124) which is detachable from the housing (21) in order to remove the energy transfer element (30: 130; 230; 330; 430; 530), in particular in the direction of insertion (25), from the channel (23).

2. Device according to claim 1, characterized by the fact that that at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) is detachable from the energy transmission element (30: 130; 230; 330; 430; 530) in order to remove the energy transmission element (30: 130; 230; 330; 430; 530) particularly in the direction of insertion (25) from the channel (23).

3. Device according to claim 1 or 2, characterized by the fact that that at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) is arranged on a coupling element (355; 455; 555) which can be positioned on a coupling section (31; 131; 231; 331; 431; 531) of the energy transmission element (30: 130; 230; 330; 430; 530).

4. Device according to claim 1 or 2, characterized by the fact thatthat at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) can be positioned on a coupling section (31; 131; 231; 331; 431; 531) of the energy transmission element (30: 130; 230; 330; 430; 530).

5. Device according to one of the aforementioned claims, characterized by the fact that which has at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) having at least one opening (36; 136; 236; 336; 436) in which the energy transmission element (30: 130; 230; 330; 430; 530) can be positioned, and in particular has at least one opening (36; 136; 236; 336; 436) in which the energy transmission element (30: 130; 230; 330; 430; 530) can be inserted at least section by section.

6. Device according to claim 5, characterized by the fact thatthe at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) has a reinforcement in the area of ​​the at least one opening (36; 136; 236; 336; 436), wherein the reinforcement in particular comprises an eyelet and / or a seam and / or at least one reinforcement ring.

7. Device according to claim 5 or 6, characterized by the fact that that at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) has an elastomer coating (144) in the area of ​​at least one opening (36; 136; 236; 336; 436) and / or the coupling section (31; 131; 231; 331; 431; 531) of the energy transmission element (30: 130; 230; 330; 430; 530) has an elastomer coating (144).

8. Device according to one of the aforementioned claims, characterized by the fact that the housing interface (24; 124) has a bayonet fitting.

9. Device according to one of the aforementioned claims, characterized by the fact thatat least one sensor (26) is provided to monitor the release of the housing interface (24; 124).

10. Device according to one of the aforementioned claims, characterized by the fact that the energy transmission device (34) comprises a roller train (41) which has at least a first roller holder (42) with a first roller (43) on which the at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) is movably arranged.

11. Method for replacing an energy transfer element (30: 130; 230; 330; 430; 530) from a device for driving a fastening element into a substrate, in particular from the device (20; 120) according to any one of claims 1 to 10, wherein at least the following steps are carried out, in particular in the specified order: a) opening a housing interface (24; 124) from the housing (21) of the device (20; 120); b) decoupling a first energy transfer element (30: 130; 230; 330; 430; 530) from at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) of an energy transfer device (34); c) Removing the first energy transfer element (30: 130; 230; 330; 430; 530) from a channel (23) in the housing (21), in particular in the direction of insertion (25) of the device; d) Inserting a second energy transfer element (30: 130; 230; 330; 430;530) into the channel (23) in the housing (21), in particular in the opposite direction to the direction of insertion (25); e) coupling the second energy transmission element (30: 130; 230; 330; 430; 530) with the at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) of the energy transmission device (34); f) arranging the housing interface (24; 124)) on the housing (21) of the device.; 12. Method according to claim 11, characterized by the fact that before step a) the first energy transmission element (30: 130; 230; 330; 430; 530) is relaxed and in particular the at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) is relaxed.

13. Method according to claim 11 or 12, characterized by the fact thatIn step e) a coupling section (31; 131; 231; 331; 431; 531) of the energy transmission element (30: 130; 230; 330; 430; 530) is brought into operative connection with the at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535).

14. Method according to any one of claims 11 to 13, characterized by the fact that A sensor (26) monitors the detachment of the housing interface (24; 124) from the housing (21).

15. Energy transfer element (30: 130; 230; 330; 430; 530) for a device (20; 120) according to one of claims 1 to 10, wherein the energy transfer element (30: 130; 230; 330; 430; 530) has at least one coupling section (31; 131; 231; 331; 431; 531) for coupling to at least one flexible force transmission element (35; 135; 235, 235a; 335; 435; 535) of an energy transfer device (34).

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