System and Method for Driving a Power Tool into a Substrate using a Negative Pressure Produced by a Suction Device

Abstract

A system includes a power tool and a suction device that is connected to the power tool via a suction hose. The power tool is drivable into a wall or into a substrate by a negative pressure produced by the suction device. A method includes driving the power tool into the wall or into the substrate by using the negative pressure produced by the suction device that is connected to the power tool via the suction hose.

Claims

1.-12. (canceled)

13. A system, comprising: a power tool; and a suction device; wherein the power tool is drivable into a wall or into a substrate.

14. The system as claimed in claim 13, wherein the power tool is drivable into the wall or into the substrate by a negative pressure produced by the suction device.

15. The system as claimed in claim 13, wherein a negative pressure producible by the suction device is settable in dependence on an operating performance of the power tool.

16. The system as claimed in claim 14, wherein the negative pressure is settable using a communication link between the power tool and the suction device.

17. The system as claimed in claim 13, wherein a feed force with which the power tool is drivable into the wall or into the substrate is settable using a communication link between the power tool and the suction device.

18. The system as claimed in claim 16, wherein the communication link comprises a communication interface which is configured for communication with the power tool and/or the suction device.

19. The system as claimed in claim 18, wherein the communication interface is configured to regulate a suction power of the suction device and/or the negative pressure.

20. The system as claimed in claim 16, wherein the communication link is a bluetooth communication link.

21. The system as claimed in claim 14, further comprising a bellows which enlarges a surface area on which the negative pressure acts.

22. The system as claimed in claim 13, further comprising a water collecting ring which is fastenable to the wall or to the substrate with a negative pressure produced by the suction device, wherein the water collecting ring includes a driver with which the power tool is drivable into the wall or into the substrate.

23. The system as claimed in claim 22, wherein the driver is configured as rollers

24. The system as claimed in claim 13, wherein the system does not include an auto-feed device with which the power tool is drivable into the wall or into the substrate.

25. A method for driving a power tool into a wall or into a substrate, comprising the step of: driving the power tool into the wall or into the substrate by using a negative pressure produced by a suction device that is connected to the power tool via a suction hose.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 shows a view of a preferred configuration of the proposed system;

[0030] FIG. 2 shows a view of a preferred configuration of the proposed system with a bellows; and

[0031] FIG. 3 shows a view of a preferred configuration of the proposed system with a water collecting ring.

DETAILED DESCRIPTION OF THE DRAWINGS

[0032] In the figures, identical and similar components are denoted by the same reference signs.

[0033] FIG. 1 shows a preferred embodiment of the invention. In particular, FIG. 1 shows a preferred configuration of the proposed system, which comprises a power tool (1) and a suction device (2). The power tool (1) may preferably be a core drilling device, while the suction device (2) may be a vacuuming device or a water management system (WMS), which can be used in particular for wet applications. The power tool (1) comprises a tool (5), which may be for example a drill bit of a core drilling device. If the power tool (1) is a diamond core drilling device, the drill bit may for example be set with diamonds or diamond fragments.

[0034] The power tool (1) may be connected to the suction device (2) via a suction hose (6). With the suction hose (6), a negative pressure (3), which is produced in the suction device (2), can be transmitted into a working area of the power tool (1). It is preferred in the context of the invention that the suction hose (6) is designed to establish a flow-conducting connection between the area of the suction device (2) in which the negative pressure (3) is produced and the working area of the power tool (1). In particular, with the suction hose (6) a negative pressure (3) can be produced in the tool (5) of the power tool (1) or provided therein. With this negative pressure (3) the drilling dust or a dust-water mixture can be removed from the working area of the power tool (1). In the context of the present invention, it is proposed to use the already existing negative pressure (3) or the suction power of the suction device (2) for additional functions. These functions may be for example that, using the negative pressure (3), the power tool (1) is kept in a working position favorable for the user on a wall (4) or on a substrate (4). The negative pressure (3) may also be used to drive the power tool (1) or the tool (5) of the power tool (1) into the wall (4) or into the substrate (4) (cut assist function). For this purpose, the suction power that can be provided with the suction device (2) of the proposed system can be increased considerably in comparison with conventional suction devices (2).

[0035] It is particularly preferred in the context of the invention that the holding force and/or the feed force that can be produced by the suction device (2) of the system can be set or selected in dependence on the operating performance of the power tool (1). If the power tool (1) is a core drilling device, the operating performance of the power tool (1) may be for example a drilling performance. If for example the power tool (1) is operated at high power and it is to be expected that relatively large quantities of dust or of the dust-water mixture will be produced or occur, the feed force or the fastening force produced by the suction device (2) of the system can likewise be increased in order to allow the power tool (1) to be securely fastened to the wall (4) or to allow the power tool (1) to be driven in effectively. In other words, it is preferred that the holding force and/or the feed force produced by the suction device (2) can be adapted to the operating or drilling performance of the power tool (1). Such an adaptation of the holding force and/or the feed force to the operating or drilling performance of the power tool (1) can be achieved in particular by adapting the negative pressure (3) produced by the suction device (2). It is particularly preferred in the context of the invention that the fastening force and/or the feed force can be set by regulating the negative pressure (3) that is produced by the suction device (2) of the system. The negative pressure (3) produced by the suction device (2) or its magnitude preferably correlates with a suction power which can preferably be set on the suction device (2). In other words, the negative pressure (3) that is produced by the suction device (2) can be set in dependence on the suction power of the suction device (2). It is an essential accomplishment of the present invention that the negative pressure (3) that is always present and is produced by the suction device (2) of the system is used and exploited for a series of other functions.

[0036] It is particularly preferred in the context of the invention that the suction power of the suction device (2) can be set using a communication link (7). The communication link (7) is formed in particular between the power tool (1) and the suction device (2). For example, the communication link (7) may be designed as a bluetooth communication link. It is preferred in this connection that both the power tool (1) and the suction device (2) are bluetooth-enabled. However, other types of communication links are also conceivable in the context of the present invention. The communication link (7) advantageously allows the fastening force and/or the feed force as well as the negative pressure (3) produced by the suction device (2) to be set or adapted in dependence on the operating performance of the power tool (1). In particular, the communication link (7) allows communication between the power tool (1) and the suction device (2). It is preferred in the context of the invention that the communication link (7) is also used for exchanging further data, commands and/or information between the power tool (1) and the suction device (2).

[0037] The system preferably comprises a communication interface which preferably allows communication between the power tool (1) and the suction device (2). It is particularly preferred in the context of the invention that the communication interface is designed to establish the communication link (7) between the power tool (1) and the suction device (2). In other words, it is preferred in the context of the invention that the communication link (7) comprises a communication interface which is designed for communication with the power tool (1) and/or the suction device (2). As a result, the feed force with which the power tool (1) can be driven into the wall (4) or the substrate (4) can advantageously be set using the communication link (7). The communication interface is therefore designed to regulate the suction power of the suction device (2) and/or the feed force.

[0038] FIG. 2 shows a view of a preferred configuration of the proposed system with a bellows (8). It is preferred in the context of the invention that the bellows (8) serves in particular for enlarging the surface area on which the negative pressure (3) acts. Components of the bellows (8) preferably run essentially parallel to the tool (5) of the power tool (1) and contact the wall (4) or the substrate (4) that is to be machined with the power tool (1). In particular, the bellows (8) encloses the tool (5) of the power tool (1). At the points of contact between the bellows (8) and the wall (4) or substrate (4), a form fit is preferably formed, so that a closed space is formed between the bellows (8), the wall (4) or the substrate (4) and the tool (5) or the power tool (1). The negative pressure (3) that is produced by the suction device (2) and can be transferred from the suction device (2) to the power tool (1) with the suction hose (6) is also preferably present in this closed space formed inter alia by the bellows (8). The power tool (1) or the tool (5) can advantageously be driven into the substrate (4) or into the wall (4) by the negative pressure (3). However, the negative pressure (3) can advantageously also be used to fasten the power tool (1) to the wall (4) or to the substrate (4). In particular, the area on which the negative pressure (3) acts on the wall (4) is enlarged by the bellows (8). As a result, it is possible for example to work with a lower suction power of the suction device (2) or a lower negative pressure to be produced (3), which saves energy and costs.

[0039] FIG. 3 shows a view of a preferred configuration of the proposed system with a water collecting ring (9). It is preferred in the context of the invention that the water collecting ring (9) can be fastened to the wall (4) or the substrate (4) with a negative pressure (3). The water collecting ring (9) preferably has driving means with which the power tool (1) or the tool (5) of the power tool (1) can be driven into the wall (4) or into the substrate (4). The water collecting ring (9) can preferably assist the cut assist function of the proposed system. The driving means may be designed for example as rollers. It is preferred in the context of the invention that the water collecting ring (9) is arranged between the wall (4) or the substrate (4) on one side and the tool (5) of the power tool (1) on the other side. The water collecting ring (9) is preferably designed to collect the dust-water mixture formed from cooling water and drilling dust in the case of wet applications, while the dust-water mixture collected can preferably be sucked off with the suction device (2).

LIST OF REFERENCE CHARACTERS

[0040] 1 Power tool [0041] 2 Suction device [0042] 3 Negative pressure [0043] 4 Wall or substrate [0044] 5 Tool of the power tool [0045] 6 Suction hose [0046] 7 Communication link [0047] 8 Bellows [0048] 9 Water collecting ring