HOLLOW DRILL DEVICE WITH AN INDICATOR AND METHOD AND SYSTEM FOR DETERMINING AND INDICATING A QUALITY GRADING FOR THE CLEANING OF A DRILLED HOLE

Abstract

A hollow drill device for producing a drilled hole includes a suction head, where the hollow drill device is connectable to a dust extraction device by the suction head, a sensor, where a pressure condition in the suction head is determinable by the sensor, and an indicator. A quality grading of a cleaning of a drilled hole is indicatable by the indicator in dependence on a determined pressure condition in the suction head by the sensor.

Claims

1.-8. (canceled)

9. A hollow drill device for producing a drilled hole, comprising: a suction head, wherein the hollow drill device is connectable to a dust extraction device by the suction head; a sensor, wherein a pressure condition in the suction head is determinable by the sensor; and an indicator, wherein a quality grading of a cleaning of a drilled hole is indicatable by the indicator in dependence on a determined pressure condition in the suction head by the sensor.

10. The hollow drill device as claimed in claim 9, wherein the indicator is disposed on an upper side of the suction head.

11. The hollow drill device as claimed in claim 9, wherein the indicator is an optical indicator.

12. The hollow drill device as claimed in claim 9, wherein different quality gradings of the cleaning of the drilled hole are indicated by respective different colors.

13. A system, comprising: a hollow drill device with a suction head and a sensor, wherein a pressure condition in the suction head is determinable by the sensor; and an external unit, wherein the external unit includes an indicator and wherein a quality grading of a cleaning of a drilled hole is indicatable by the indicator in dependence on a determined pressure condition in the suction head by the sensor.

14. A method for indicating a quality grading of a cleaning of a drilled hole, comprising the steps of: providing a hollow drill device with a suction head and a sensor; determining a pressure condition in the suction head by the sensor; and indicating the quality grading of the cleaning of the drilled hole by an indicator in dependence on the determined pressure condition in the suction head by the sensor.

15. The method as claimed in claim 14, wherein the indicator is a component part of the hollow drill device.

16. The method as claimed in claim 14, wherein the indicator is a component part of an external unit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 shows a view of a preferred configuration of the invention, in particular of a provided hollow drill device; and

[0029] FIG. 2 shows a view of a preferred configuration of the invention, in particular of a provided system.

DETAILED DESCRIPTION OF THE DRAWINGS

[0030] FIG. 1 shows a preferred configuration of a provided hollow drill device (1). Shown is a drilling tool (3), which may in particular be a “hollow drill bit”. The drilling tool (3) is connected to a suction head (2), which in turn can be connected to a dust extraction device. Dust and contaminants can be sucked out of the drilled hole through the hollow drilling tool (3) by the dust extraction device. The essence of the present invention is an indicator (4), which may for example be arranged in the region of the suction head (2) on the hollow drill device (1). In the exemplary embodiment of the invention that is shown in FIG. 1, the indicator device (4) is arranged on a top or upper side of the suction head (2), in order that the indicator (4) can be kept in view as easily as possible by the operator of the hollow drill device (1) while the operator is drilling a hole with the hollow drill device (1). In other words, in the exemplary embodiment of FIG. 1, the indicator (4) is in the field of view of the operator.

[0031] The indicator (4) in FIG. 1 is designed as an optical indicator, wherein different colors preferably stand for different quality gradings of the cleaning of a drilled hole. For example, a green indication (4a, on the left in the figure) may stand for adequate cleaning of a drilled hole, in the case of which no additional cleaning measures are required for the drilled hole and, even without these measures, a good connection between the fastening system and the drilled hole can be expected. A red indication (4c, on the right in the figure) may for example stand for inadequate cleaning of a drilled hole, in the case of which further measures for improved cleaning of the drilled hole or measures against a possibly clogged hollow drill must be carried out, in order to ensure that for example a chemical dowel can be anchored well in the drilled hole. A yellow indication (4b, in the middle of the figure) may for example stand for a critical or possibly inadequate cleaning of a drilled hole. It may in particular also be the case that a yellow indication (4b) indicates a change from good cleaning of a drilled hole to poor cleaning of a drilled hole, or vice versa. In this way, the operator of the hollow drill device (1) can acquire knowledge of possible changes in the ambient conditions and factors that influence the quality of the cleaning of a drilled hole, and possibly take remedial action.

[0032] It may however also be preferred in the context of the invention that the indicator (4) is arranged at another location of the suction head (2). For example, the indicator (4) may also be formed as a display screen, which is for example arranged on one of the side surfaces of the suction head (2). It may also be preferred in the context of the invention that the indicator (4) is formed as an optical indicator (4) and for example emits a single-colored flashing light, wherein different flashing frequencies stand for different efficiencies of the cleaning of a drilled hole.

[0033] FIG. 2 shows a view of a preferred configuration of the invention, in particular of a provided system (6). The system (6) comprises a hollow drill device (1′), wherein the reference sign 1′ means that a hollow drill device (1′) of the system (6) does not itself have to comprise an indicator device (4). Like the provided hollow drill device (1), the hollow drill device (1′) comprises a suction head (2), which comprises sensors for determining pressure conditions in the suction head (2). The system (6) also comprises at least one external unit (5). The exemplary embodiment of the system (6) that is shown in FIG. 2 shows two external units (5), wherein a first external unit (5a) is formed by a mobile communication device and a second external unit (5b) is formed by the dust extraction device with which the hollow drill device (1 or 1′) interacts. In the context of the provided system (6), the indication of the determined pressure conditions in the suction head (2) preferably takes place on an indicator device (4′), wherein the reference sign 4′ indicates that it is an indicator device of an external unit (5). For example, an indicator device (4′) may be arranged on an upper side of the dust extraction device (5b) to which the hollow drill device (1′) is connected.

[0034] Between the hollow drill device (1′) and the external units (5) there is preferably a communication link (7), which in a particularly preferred configuration of the invention is wirelessly configured. It is most particularly preferred in the context of the invention that the communication link (7) is a Bluetooth and/or a WIFI/WLAN link.

LIST OF REFERENCE CHARACTERS

[0035] 1 Hollow drill device [0036] 2 Suction head [0037] 3 Drilling tool [0038] 4 Indicator [0039] 5 External unit [0040] 6 System [0041] 7 Communication link