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EP4137273A1 - Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche armée - Google Patents

Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche armée Download PDF

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Publication number
EP4137273A1
EP4137273A1 EP21191908.9A EP21191908A EP4137273A1 EP 4137273 A1 EP4137273 A1 EP 4137273A1 EP 21191908 A EP21191908 A EP 21191908A EP 4137273 A1 EP4137273 A1 EP 4137273A1
Authority
EP
European Patent Office
Prior art keywords
drilling
rock
rock drilling
tool
drilling tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21191908.9A
Other languages
German (de)
English (en)
Inventor
Serhey Khandozhko
Dario BRALLA
Manuel KNOBEL
Carsten Peters
Markus Meierhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP21191908.9A priority Critical patent/EP4137273A1/fr
Priority to US18/578,848 priority patent/US20240316822A1/en
Priority to EP22760932.8A priority patent/EP4387811A1/fr
Priority to PCT/EP2022/071782 priority patent/WO2023020838A1/fr
Publication of EP4137273A1 publication Critical patent/EP4137273A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B28D1/146—Tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02—Percussive tool bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/72—Stone, rock or concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/141—Magnetic parts used in percussive tools

Definitions

  • the invention is based on a rock drilling tool for drilling rock, in particular reinforced concrete. Furthermore, the invention relates to a rock drilling device and a method for drilling reinforced rock with a rock drilling tool.
  • the rock drilling tool used often breaks.
  • the rock drilling tool has a smaller diameter than a rebar to be cut, for example in the case of a 10 mm diameter rock drilling tool and a 16 mm diameter rebar to be cut, and if the rock drilling tool hits the rebar centrally.
  • rock drilling tools that have been customary to date are subject to considerable wear when working reinforced rock, in particular when cutting through or drilling through a reinforcement, so that there is only a short service life for drilling reinforced rock.
  • the object of the present invention is therefore to provide a rock drilling tool, a rock drilling device and a method for drilling reinforced rock with a longer service life when drilling reinforced rock.
  • the object is achieved by a rock drilling tool for drilling reinforced rock, in particular reinforced concrete, the rock drilling tool having a magnetization device.
  • the magnetization device can be set up to magnetize the rock drilling tool.
  • a drill head of the rock drilling tool can be magnetizable by the magnetization device.
  • the rock drilling tool may include a shank and a drill head connected to the shank at a joint.
  • the drill head can have one or more, for example three or four cutting edges.
  • fractures often occur, for example in the form of one or more cutting edges chipping off. Fractures can also occur at the connection point.
  • the invention is now based on the surprising observation that the risk of such fractures can be significantly reduced if the rock drilling tool, in particular the drill head, is magnetized while drilling the reinforcement.
  • a magnetic field can thus be formed in the region of the drill head during drilling.
  • the rock drilling tool according to the invention can thus have a particularly long service life, in particular when drilling reinforced rock.
  • reinforcements are made of ferrous material. As a result, they are usually also magnetizable. Due to the magnetization of the rock drilling tool according to the invention, ferrous chips separated from the reinforcement can thus be magnetized and magnetically attracted to the rock drilling tool.
  • the iron-containing chips can therefore collect in the area of the rock drilling tool, in particular in the area of the drill head. According to our own research, the accumulation of ferrous chips in this way can reduce the risk of breakage. It is conceivable that the ferrous chips can dampen unwanted load peaks, for example in the area of the contact zone between the drill head and the reinforcement. So can Stress peaks of the rock drilling tool are minimized. In addition, it is also conceivable that the iron-containing chips can generate further friction due to the rotation of the rock drilling tool, so that the reinforcement can be severed or drilled through even more quickly and/or more reliably.
  • the effect can be particularly pronounced when drilling in a vertical direction, especially upwards.
  • the ferrous cuttings would usually fall out of the drilled hole by gravity. Due to the magnetization, however, the ferrous chips can be held in the area of the drill head at least partially and/or briefly.
  • the magnetization device can have a permanent magnet.
  • the magnetization device can be designed as a permanent magnet.
  • the magnetic field required according to the invention can thus be made available continuously and without an additional external energy source.
  • the magnetization device can also have a temporary magnet, in particular an electromagnet.
  • the magnetic field according to the invention can thus be provided as required. For example, provision can be made to activate the magnetic field when the rock drilling tool strikes a reinforcement and/or while the reinforcement is being severed. However, when drilling the rest of the unarmored rock, the magnetic field may be disabled.
  • a temporary magnet can also generate a magnetic field in the case of higher temperatures, for example temperatures greater than 200 °C.
  • the temperature can relate in particular to a temperature measured at the drill head.
  • the magnetization device can be arranged and/or formed in the area of the drill head, for example on the shank, of the rock drilling tool.
  • a section of the rock drilling tool for example a section of the shank, can also be designed as a magnetization device, in particular in the form of a magnet.
  • the magnetization device is designed as an independent part of the rock drilling tool.
  • it can be around the rest of the rock drilling tool, i.e. in particular around the shank and/or around the drill head. be arranged.
  • the magnetization device can be designed in the shape of a ring.
  • rock drilling tool is designed as a hammer drill.
  • hammer drill bits It is common for hammer drill bits to have a drill head which is connected to the shank of the rock drilling tool via a joint.
  • connection point can be made by soldering and/or welding.
  • the drill head of hammer drill bits usually has one or more cutting edges, which are at least essentially cuboid and/or protrude at least partially from the rest of the drill head.
  • the rock drilling tool in particular a drill head of the rock drilling tool, has cobalt and/or nickel.
  • These elements and/or alloys formed with these elements can be magnetizable and/or magnetic, so that the magnetic field in the area of the drill head can spread and/or form better.
  • the drill head has a hard metal containing cobalt and/or nickel.
  • the drill head can in particular be made of such a hard metal. This also allows the service life or service life of the rock drilling tool to be further extended.
  • the rock drilling tool has more than one cutting edge, in particular more than two cutting edges, for example four or six cutting edges. Such an increased number of cutting edges can prevent the rock drilling tool from getting stuck on and/or in the reinforcement, so that the effective risk of breakage can be further reduced and the service life of the rock drilling tool can be further extended.
  • the rock drilling tool can be designed as a suction drilling tool and/or as a hollow drilling tool. Then a suction device can be connected directly to the rock drilling tool.
  • the scope of the invention also includes a rock drilling device, comprising a drilling machine tool and a rock drilling tool that can be driven by the drilling machine tool, the rock drilling device having a magnetization device for magnetizing the rock drilling tool.
  • the rock drilling device can thus comprise the magnetization device.
  • the magnetization device can generate a magnetic field that can form and/or propagate along and/or in the area of the rock drilling tool.
  • the rock drilling tool in particular its drill head and/or an area bordering on the drill head, can be magnetizable by the magnetization device.
  • the rock drilling device can be and/or comprise a construction robot, in particular a drilling construction robot.
  • the rock drilling device can have at least one arm.
  • the drilling machine tool can then be arranged and/or formed on the arm.
  • the arm can have multiple axes. It can have at least three degrees of freedom, preferably at least six degrees of freedom.
  • the construction robot can also have a lifting device.
  • the lifting device can be designed to displace the drilling machine tool and/or the arm in a vertical direction.
  • the rock drilling device can be designed for drilling in a vertical direction, in particular in a vertical direction upwards.
  • the rock drilling device can thus be designed, for example, for drilling into a ceiling.
  • it can also be designed for drilling in a horizontal direction, for example for drilling in a wall.
  • the rock drilling device has a suction device.
  • the suction device may be controllable by the rock drilling device. In particular, it can be switched on and off by the rock drilling device and/or the power can be regulated.
  • the suction device can be designed to suck drilling dust out of a bore hole formed in the rock by the rock drilling tool.
  • the rock drilling device can be designed to activate and/or deactivate the suction device depending on the type of subsoil being processed. It is conceivable, for example, that the suction device is activated when drilling through non-reinforced rock and/or works at high power. The suction device can be deactivated and/or work with reduced power while the armor is being cut through.
  • the rock drilling device can also have a blowing device.
  • the blowing device can particularly preferably be part of the suction device, for example by the suction device being equipped with a blowing function.
  • a blowing device makes it possible to blow previously sucked off drill dust and/or externally stored particles, for example other drill dust, into the borehole.
  • the quantity of particles, in particular the quantity of drilling dust can thus be further increased during the drilling of the reinforcement.
  • the suction device may be controllable by the rock drilling device. In particular, it can be switched on and off by the rock drilling device and/or the power can be regulated.
  • the magnetization device can be formed and/or arranged on the suction device.
  • a magnetic field can thus be made available.
  • the advantages of the invention can be realized. In particular, these can be realized independently of the type of rock drilling tool used.
  • the service life of conventional rock drilling tools, for example conventional hammer drill bits, can thus be significantly extended with the aid of the rock drilling device according to the invention when working on reinforced rock.
  • the magnetization device can have a permanent magnet and/or a temporary magnet, in particular an electromagnet. These types of magnets can be those described above in connection with the rock drilling tool Realize benefits without requiring a special design of the rock drilling tool to be used.
  • the rock drilling device has a rock drilling tool according to the invention with the features and advantages described above.
  • the magnetizing device of the rock drilling tool can then form the magnetizing device of the rock drilling device.
  • the rock drilling device has a drilling direction detection device, a subsoil detection device and/or a drilling progress detection device.
  • the rock drilling device can thus be configured to detect a drilling direction with the aid of the drilling direction detection device.
  • it can be set up to detect whether drilling is taking place in a vertical or at least essentially vertical direction. It can particularly preferably be set up to detect whether drilling is being carried out vertically upwards or at least essentially vertically upwards.
  • the rock drilling device can be designed with the aid of the subsoil detection device to detect a subsoil to be processed, in particular reinforcement and/or non-reinforced rock.
  • the drilling progress can, for example, be measurable and therefore detectable using the drilling speed.
  • the rock drilling device can be operable in at least two drilling modes.
  • a drilling mode may be a rebar drilling mode.
  • the rebar drilling mode can be set up to cut through a rebar.
  • the rock drilling apparatus may further have a non-reinforcement drilling mode.
  • the non-reinforcement drilling mode may be set up for drilling non-reinforcement rock, such as concrete outside of rebars.
  • the rock drilling device can be set up, for example, to deactivate the suction device and/or to operate it with throttled power.
  • the magnetization device can also be closed activate and in particular to generate the magnetic field.
  • non-reinforcement drilling mode provision can be made for deactivating the magnetization device and thus for deactivating the magnetic field while drilling non-reinforced rock.
  • the suction device is activated and/or operated with regular and/or increased power.
  • the rock drilling device can be set up, depending on the type of subsoil to be drilled, to select automatically between the reinforcement drilling mode and the non-reinforcement drilling mode, in particular to switch between these two drilling modes.
  • the type of subsurface can be determined and/or can be determined using the subsurface detection device.
  • rock drilling device is set up to select the rebar drilling mode or, alternatively, to select it exclusively when drilling in a vertical or essentially vertical direction upwards.
  • they can also be set up to activate the magnetic field, in particular in the case of a temporary magnet, or, alternatively, to activate it exclusively when drilling into a reinforcement and, particularly preferably, when also in a vertical or essentially vertical direction upwards is drilled.
  • the scope of the invention also includes a method for drilling reinforced rock with a rock drilling tool, in particular a rock drilling tool according to the invention, the rock drilling tool, in particular a drill head of the rock drilling tool, being magnetic and/or being magnetized during drilling.
  • This method according to the invention can also be used to make use of the above-mentioned, surprising finding within the meaning of the invention and its advantageous effects of magnetization during drilling of reinforced rock.
  • the risk of breakage of the rock drilling tool can thus be reduced.
  • the service life of the rock drilling tool can thus be extended considerably.
  • the method can be used particularly advantageously when drilling is carried out in a ceiling and/or in a vertical or essentially vertical direction upwards.
  • the ferrous shavings of a rebar would usually fall out of the borehole created during drilling, driven by gravity.
  • these iron-containing chips can be kept at least partially and/or temporarily in the borehole and in particular in the area of the drill head.
  • a drilling direction, a subsoil type and/or a drilling progress can be detected, in particular while drilling the reinforced rock.
  • a position of the rock drilling tool and/or a rock drilling device can be determined, vibrations can be evaluated and/or a drilling speed can be measured.
  • the drilling direction, the type of subsoil and/or the drilling progress can thus be monitored. From this it can be deduced, for example, whether drilling is being carried out upwards and/or into a ceiling and/or whether reinforcement or non-reinforced rock, in particular concrete, is being drilled.
  • the magnetization device can then be activated, deactivated and/or its power regulated as required. For example, it can be activated when armor is reached and/or severed.
  • the magnetization device can be deactivated while rock is being drilled, that is to say in particular outside of a reinforcement.
  • the suction device can be activated, deactivated and/or controlled in terms of its performance as required. This can also be done analogously to controlling the magnetization device to control the suction device.
  • FIG. 1 shows a rock drilling tool 10 with a drill head 12, a shank 14 and a shank 16.
  • the rock drilling tool 10 is designed as a hammer drill.
  • the drill head 12 is soldered to the shank 14 at a connection point 18 .
  • the drill head 12 is welded to the shank 14 at the connection point 18 .
  • the drill head 12 has 4 cutting edges 20 , which are designed in the shape of a cross overall.
  • the drill head 12 is made from a hard metal, for example from one containing cobalt and/or nickel tungsten carbide, formed.
  • the shaft 14 has a transport structure 22 .
  • the transport structure 22 is designed to transport drill dust, chips or the like away.
  • the transport structure 22 has an outer helix that runs, in particular, in a helical shape.
  • the transport structure 22 can be single-threaded or multi-threaded.
  • the shank 16 may have a standardized shape, for example it may have a shape commonly referred to as "SDS-plus".
  • the rock drilling tool 10 also has a magnetization device 24 .
  • the magnetization device 24 is ring-shaped. It encloses the shaft 14.
  • the magnetization device 24 has a permanent magnet 26 .
  • the permanent magnet 26 thus generates a magnetic field which propagates in the area of the rest of the rock drilling tool 10, for example along the shank 14 and particularly preferably in the area of the drill head 12.
  • the magnetization device 24 is not designed as a separate part that is ring-shaped and, in particular, encloses the rock drilling tool 10 .
  • the magnetizing device 24 is in the form of a plurality of permanent magnets 26 formed, which are arranged on the shaft 14.
  • the permanent magnets 26 are arranged in an end region of the shank 14 facing the drill head 12 .
  • the permanent magnets 26 are thus arranged in the vicinity of the drill head 12 .
  • they can be glued, soldered and/or welded to the shaft 14 .
  • the shaft 14 has at least one area with a magnetizable material.
  • the permanent magnets 26 can then also be formed by magnetizing this area of the shaft 14 .
  • the magnetizing device 24 can thus generate a magnetic field, in particular with the aid of the permanent magnets 26 .
  • the magnetic field can be permanently available in the area of the drill head 12, in particular in the area of its cutting edges 20.
  • the rock drilling device 100 includes a drilling machine tool 103. This is designed as a hammer drill. It has a tool holder 102 in which a rock drilling tool 10 is accommodated.
  • the rock drilling device 100 is designed for drilling reinforced rock. It has an operating mode selector switch 104 . Different operating modes can be selected by means of the operating mode selector switch 104 . In particular, an operating mode for hammer drilling, i.e. for percussive drilling, is available.
  • the rock drilling device 100 also has a handle area 106 .
  • the handle area 106 is designed to hold the rock drilling device 100 manually and/or mechanically.
  • a vibration damping device 108 is formed between the handle area 106 and the rest of the rock drilling device 100 and is set up to minimize the transmission of vibrations from the rest of the rock drilling device 100 to the handle area 106 .
  • the drilling device 100 also has a suction device 110 .
  • the suction device 110 is arranged on the rock drilling device 100, in particular detachably.
  • the suction device 110 has a suction head 112 .
  • the suction head 112 annularly encloses the rock drilling tool 10 accommodated in the tool holder 102.
  • the suction head 112 is designed to suck off drill dust produced by the rock drilling tool 10 during drilling in rock, in particular in reinforced rock.
  • the suction head 112 is arranged telescopically on the rest of the suction device 110 .
  • the suction head 112 may abut a surface of a rock to be drilled while the rock drilling tool 10 is penetrating the rock to be drilled.
  • a magnetization device 24 is formed on the suction head 112 that annularly encloses the rock drilling tool 10 .
  • the electromagnet 28 can be supplied with electrical energy via the suction device 110 .
  • the suction device 110 itself can be supplied with electrical energy by the rock drilling device 100 .
  • the rock drilling device 100 is designed in this way in such a way that the electromagnet 28 and thus a magnetic field generated by it can be activated, deactivated or its power can be controlled.
  • the rock drilling device 100 has a drilling direction detection device 113 and a subsurface detection device 114 .
  • the drilling direction detection device 113 and the underground detection device 114 are shown in FIG 3 shown only schematically.
  • the drilling direction detection device 113 is designed to detect a drilling direction. In particular, it is set up to detect whether drilling is in a vertical or essentially vertical direction and, particularly preferably, whether it is drilling upwards.
  • the drilling direction detection device 113 can have a position sensor.
  • the underground detection device 114 is designed to detect and/or evaluate vibrations of the tool 102 . It can also be set up to use these vibrations to detect the type of subsurface being processed. Thus, it can be set up to distinguish between a treatment of a reinforcement and a non-reinforced rock.
  • the rock drilling device 100 is set up, in particular when hammer drilling is selected as the operating mode, to automatically select between a reinforcement drilling mode and a non-reinforcement drilling mode.
  • the electromagnet 28 in particular is activated, deactivated and/or its power is regulated.
  • the suction device 110 can preferably also be controlled by the rock drilling device 100 analogously to the electromagnet 28 .
  • the rock drilling device 101 is designed as a drilling robot. It has a mobile platform 116 .
  • the mobile platform 116 is designed, for example, as a tracked vehicle.
  • the mobile platform 116 can be remotely controllable, semi-autonomous, and/or fully autonomous.
  • the mobile platform 116 also has an in 4 Control unit 117 shown only schematically.
  • the control unit 117 is designed as a computer unit and set up to control all functions of the rock drilling device 101, in particular also its drilling functions.
  • a lifting device 118 is arranged on the mobile platform 116, by means of which an arm 120 can also be displaced in the vertical direction.
  • the arm 120 has six degrees of freedom.
  • the arm 120 has a machine tool mount 122 at its free end.
  • a rock drilling device 100 is accommodated in the machine tool mount 122 .
  • the rock drilling device 100 corresponds to that described above in connection with FIG 3 described embodiment.
  • the rock drilling device 100 can also be controlled by the control unit 117 .
  • the rock drilling device 101 is thus set up, rock, in particular reinforced rock, in the horizontal and/or vertical direction and thus in walls and/or to drill ceilings. Preferably it is also set up to drill into soil.
  • the walls and/or the ceilings can be made of reinforced rock, for example reinforced concrete. It should be particularly noted that the rock drilling device 101 is thus set up to drill in a vertical or a substantially vertical direction and in particular upwards.
  • the reinforcement of the reinforced concrete consists, for example, of ferrous reinforcement rods, each with a diameter of 16 mm.
  • the rock drilling device 101 first aligns its rock drilling device 100 and thus the rock drilling tool 10 ( 3 ) vertically upwards.
  • the drilling process is then started.
  • the rock drilling device 100 monitors using the subsurface detection device 114 ( 3 ) the type of substrate being processed.
  • the rock drilling apparatus 100 operates in the non-reinforcement drilling mode.
  • the suction device 110 ( 3 ) operated at high power and the magnetizing device 24 ( 3 ) remains disabled.
  • the rock drilling device 100 switches to the reinforcement drilling mode.
  • the power of the suction device 110 is throttled and the magnetization device 24 is activated.
  • control unit 117 can then also select and optionally switch over the drilling mode.
  • the drilling progress can be measured, for example, by monitoring the movements of the lifting device 118 and/or the arm 120 .
  • figure 5 12 shows a photograph of a rock drilling tool 10 after drilling a borehole 200 in reinforced rock 202.
  • the reinforced rock 202 forms a roof of a building.
  • the borehole 200 is thus formed vertically upwards.
  • the rock drilling tool 10 is magnetized. In particular, it corresponds to that related to 2 described embodiment of the rock drilling tool 10.
  • non-magnetic drilling dust 204 has accumulated along the shaft 14, in particular along the transport structure 22 ( 1 ), located.
  • ferrous chips 206 adhere to the rock drilling tool 10, in particular due to the magnetization of the rock drilling tool 10.
  • the ferrous chips 206 are located in particular in the area of the drill head 12 of the rock drilling tool 10. In the illustration according to FIG figure 5 the drill head 12 is largely covered by the ferrous chips 206.
  • the above-mentioned risk of breakage with different rock drilling tools 10, in particular when drilling in ceilings in reinforced concrete, including drilling through reinforcements in reinforced concrete, can be roughly halved by the measures and/or devices described. Accordingly, the service life of the rock drilling tools 10 can be approximately doubled without reducing the drilling performance, in particular the impact performance, when it hits the reinforcement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP21191908.9A 2021-08-18 2021-08-18 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche armée Withdrawn EP4137273A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21191908.9A EP4137273A1 (fr) 2021-08-18 2021-08-18 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche armée
US18/578,848 US20240316822A1 (en) 2021-08-18 2022-08-03 Masonry drilling tool, masonry drilling device, and method for drilling reinforced masonry
EP22760932.8A EP4387811A1 (fr) 2021-08-18 2022-08-03 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche renforcée
PCT/EP2022/071782 WO2023020838A1 (fr) 2021-08-18 2022-08-03 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche renforcée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21191908.9A EP4137273A1 (fr) 2021-08-18 2021-08-18 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche armée

Publications (1)

Publication Number Publication Date
EP4137273A1 true EP4137273A1 (fr) 2023-02-22

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP21191908.9A Withdrawn EP4137273A1 (fr) 2021-08-18 2021-08-18 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche armée
EP22760932.8A Withdrawn EP4387811A1 (fr) 2021-08-18 2022-08-03 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche renforcée

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EP22760932.8A Withdrawn EP4387811A1 (fr) 2021-08-18 2022-08-03 Outil de forage de roche, dispositif de forage de roche et procédé de forage d'une roche renforcée

Country Status (3)

Country Link
US (1) US20240316822A1 (fr)
EP (2) EP4137273A1 (fr)
WO (1) WO2023020838A1 (fr)

Citations (9)

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US20070035311A1 (en) * 2005-08-11 2007-02-15 Hilti Aktiengesellschaft Power tool with measurement of a penetration depth of a working tool
JP3144151U (ja) * 2008-03-10 2008-08-21 正治 小坂 ダイヤモンドコア
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