WO2004026513A1 - コアビット - Google Patents
コアビット Download PDFInfo
- Publication number
- WO2004026513A1 WO2004026513A1 PCT/JP2003/011432 JP0311432W WO2004026513A1 WO 2004026513 A1 WO2004026513 A1 WO 2004026513A1 JP 0311432 W JP0311432 W JP 0311432W WO 2004026513 A1 WO2004026513 A1 WO 2004026513A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- core bit
- drill
- concrete
- chuck
- concrete drill
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
-
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/75—Stone, rock or concrete
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/895—Having axial, core-receiving central portion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
Definitions
- the present invention relates to a core bit which is mounted on a concrete drill driven by power such as electric power or compressed air, and is rotated by a rotational force from a concrete drill to drill a hole in a concrete wall or a stone material.
- a conventional core bit is provided with a force turring at the tip of a drill portion having an annular support.
- a mounting portion for a concrete drill is formed on the opposite side, and the mounting portion has a cylindrical guide portion and a locking portion projecting radially outward from an outer peripheral surface of the guide portion. ing.
- the core bit is attached to the chuck portion on the tool side by this attachment portion, and rotation and axial vibration from the tool side and vibration in the axial direction are transmitted to the core bit side via the locking portion.
- the locking part is formed so as to protrude outward in the radial direction at equal intervals in the circumferential direction, so that if the core bit is accidentally dropped, or if it is stored or transported, it may come into contact with other things Then, the outer shape of the locking portion may be damaged. If the external shape of the locking part is deformed due to damage, it will not be possible to mount it on the chuck part of the concrete drill, or it will be mounted in an incomplete state and it will come off during drilling work and it is dangerous May be accompanied. In addition, if the installation is incomplete, the seal of the cooling water that cools the cutter ring will be incomplete, and water leakage may occur from the joint surface between the concrete drill and the core bit. Disclosure of the invention
- the present invention solves the above-mentioned conventional problems, and provides a mounting portion for a concrete drill and an engagement member for transmitting rotation and vibration even if the device comes into contact with another object due to vibration during dropping or storage. It is an object of the present invention to provide a core bit that does not damage the core and does not cause danger due to incomplete installation or leakage of cooling water.
- a core bit according to the present invention includes a cylindrical drill portion having a drilling blade formed at one end side, and a cylindrical portion mounted to a chuck portion of a concrete drill at the other end side of the drill portion.
- An attachment member is formed on the outer peripheral surface of the attachment portion, the engagement member being engageable with the engagement portion on the chuck portion side, and rotation of the concrete drill side is performed through the engagement member.
- a flange-shaped flange portion having a diameter larger than an outer diameter of the engaging member is formed on an outer peripheral surface of the mounting portion on the side of the drilling blade.
- FIG. 1 is a side view of a concrete drill equipped with a core bit according to an embodiment of the present invention
- FIG. 2 is a perspective view showing an embodiment of the co-bit of the present invention
- FIG. 3 is a perspective view showing the same core bit mounting part and concrete drill check part as in Figure 2;
- FIG. 4 is a partial perspective view of an engaging member and a flange formed on a core bit;
- Fig. 5 is a cross-sectional view showing the mounting state of the core bit mounting part and concrete drill chuck part
- FIG. 8 is a sectional view showing a state where the core bit is mounted on the chuck portion;
- FIG. 9 is a perspective view showing another embodiment of the core bit according to the present invention.
- the reference numerals in the figure 1 is a concrete drill, 6 is a chuck, 10 is a core bit, 11 is a drill bit, 12 is a drill, 13 is a mounting part, 14 is a guide, and 15 is a guide.
- Flange part, 16 is an engagement member, 17 is an engagement protrusion, 30 is a core bit, 31 is a mounting part, 32 is a locking piece, 34 is a drill part, 35 is a drilling blade, 36 Denotes a flange portion.
- Fig. 1 shows a concrete drill 1 equipped with the qubit of the present invention, which can be drilled by gripping the drip 2 formed at the rear end of the main body and the sub grip 3 formed at the front of the main body with both hands. It has been like that.
- the motor 5 is rotationally driven to rotate the chuck unit 6, and the core bit 10 attached to the chuck unit 6 is rotationally driven.
- the vibration generating mechanism 7 is driven to vibrate the entire concrete drill 1 so that the core bit 10 is vibrated in the axial direction.
- the core bit 10 includes a hollow cylindrical drill portion 12 having a cylindrical drilling blade 11 formed at a distal end thereof, and a hollow formed at the other end of the drill portion 12.
- the drill portion 12 is formed of a cylindrical mounting portion 13.
- the drill portion 12 is formed to have different dimensions and shapes according to the diameter and depth of the hole to be drilled.
- a cylindrical guide part 14 is formed at the end of the mounting part 13, and the cylindrical guide part 14 is mounted on the chuck part 6 of the concrete drill 1 so that the rotating shaft and the core bit of the concrete drill 1 are formed. It is guided so that the central axes of 10 coincide.
- An annular flange portion 15 having an outer diameter larger than the outer diameter of the guide portion 14 is formed on the outer peripheral surface of the guide portion 14 away from the end of the mounting portion 13 in the direction of the drilling blade 11.
- An engagement member 16 for transmitting the rotation of the chuck portion 6 to the core bit 10 is formed on a side surface facing the other end of the annular flange portion 15.
- the engaging member 16 is formed by a plurality of engaging projections 17 projecting from the side surface of the flange portion 15 toward the other end side and formed at equal intervals along the circumferential direction. As shown in FIG. 3, the engagement projection 17 engages with the engagement recess 6 a formed in the chuck portion 6 of the concrete drill 1 so that the rotation of the concrete drill 1 is transmitted to the core bit 10. ing.
- the circumferential side of the engaging projection 17 forms a vertical engaging surface 17a
- Core bit 10 is accommodated in engaging recess 6 a formed in chuck portion 6 of rill 1, and the rotation of concrete drill 1 is rotated through engaging recess 6 a through engagement projection 17 of core bit 10. Is transmitted to. Also, the axial vibration of the concrete drill 1 is caused by the contact between the concave portion 17 b formed between the engaging projections 17 and the convex portion 6 b formed between the engaging concave portions 6 a on the side of the concrete drill 1. This is transmitted to the core bit 10 side.
- the core bit 10 was attached to the chuck 6 of the concrete drill 1 by the lock claw member 18 provided on the chuck 6 of the concrete drill 1. They are joined together.
- the hook claw member 18 comes into contact with the hook claw member 18, whereby the hook claw member 18 is spread, so that the mounting portion 13 of the core bit 10 can be inserted deep into the chuck portion 6, and further, the core bit 10 rotates around the core bit 10.
- the engagement protrusion 17 of the core bit 10 is fitted into the engagement recess 6 a of the chuck portion 6 so that the lock claw member 18 is outside the flange portion 15 as shown in FIG. Engage with the peripheral edge, and the outer cylinder 20 moves backward by the urging force of the spring 19 to lock the lock claw member 18 and attach the core bit 10 to the chuck part 6 of the concrete drill 1. .
- FIG. 9 shows a core bit 30 according to another embodiment of the present invention.
- the shape of the chuck portion of the concrete drill capable of mounting the core bit shown in the above-mentioned prior art is changed. This indicates a co-bit that can be installed without performing.
- locking pieces 32 protruding outward in the radial direction are formed on the outer peripheral surface of the mounting portion 31 formed in a cylindrical shape at equal intervals along the circumferential direction.
- the engaging member 16 is formed.
- the dimensions and arrangement of the locking pieces 32 are formed similarly to the conventional core bit.
- From the locking piece 3 2 A drilling blade formed at the end of the drill portion 3 4 3 5 A cylindrical mounting portion 3 1 away from the outer peripheral surface of the mounting portion 3 1 The outer diameter is larger than the protruding height of the locking piece 3 2 36 are integrally formed.
- a large diameter flange portion 36 is formed on the mounting portion 31 on which the locking piece 32 of the same shape as the conventional one is formed, at a position away from the locking piece 32 on the side of the drilling blade 35.
- the outer peripheral surface of the mounting portion of the core bit on which the engaging member for transmitting the rotation from the concrete drill side is formed is provided with a flange portion having a large outer diameter. Since the engaging member is also formed on the side of the drilling blade 5, the engaging member may come into contact with a concrete surface or another object due to vibration or the like when the core bit is dropped or stored. It is protected by the flange part and prevents the engaging member from being damaged or deformed, making it impossible to mount the concrete drill to the chuck part, or preventing it from being incompletely mounted, making it possible to work safely It becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/528,233 US7534076B2 (en) | 2002-09-20 | 2003-09-08 | Core bit |
| AU2003264391A AU2003264391A1 (en) | 2002-09-20 | 2003-09-08 | Core bit |
| EP03797553A EP1541267A4 (en) | 2002-09-20 | 2003-09-08 | TREPAN |
| KR1020057002434A KR100874520B1 (ko) | 2002-09-20 | 2003-09-08 | 코어비트 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-275427 | 2002-09-20 | ||
| JP2002275427A JP4363019B2 (ja) | 2002-09-20 | 2002-09-20 | コアビット |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004026513A1 true WO2004026513A1 (ja) | 2004-04-01 |
Family
ID=32025031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/011432 Ceased WO2004026513A1 (ja) | 2002-09-20 | 2003-09-08 | コアビット |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7534076B2 (ja) |
| EP (1) | EP1541267A4 (ja) |
| JP (1) | JP4363019B2 (ja) |
| KR (1) | KR100874520B1 (ja) |
| CN (1) | CN1329151C (ja) |
| AU (1) | AU2003264391A1 (ja) |
| TW (1) | TW200405848A (ja) |
| WO (1) | WO2004026513A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8608413B2 (en) | 2006-11-06 | 2013-12-17 | Kabushiki Kaisha Miyanaga | Shank attachment device |
| CN115488399A (zh) * | 2022-10-28 | 2022-12-20 | 浙江欣兴工具股份有限公司 | 一种快拆结构、钻孔装置及快拆方法 |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4433721B2 (ja) * | 2003-08-07 | 2010-03-17 | マックス株式会社 | コンクリートドリル等のコアビット着脱機構 |
| US7938600B1 (en) * | 2006-06-08 | 2011-05-10 | Milwaukee Electric Tool Corporation | Cutting tool and method of operating the same |
| WO2010097223A1 (de) * | 2009-02-25 | 2010-09-02 | Loeschky Tim | Hohlbohrwerkzeug mit austauschbarer bohrkrone |
| US9169739B2 (en) | 2012-01-04 | 2015-10-27 | United Technologies Corporation | Hybrid blade outer air seal for gas turbine engine |
| DE102012204491A1 (de) * | 2012-03-21 | 2013-09-26 | Hilti Aktiengesellschaft | Bohrwerkzeug |
| JP5994346B2 (ja) * | 2012-04-06 | 2016-09-21 | マックス株式会社 | コンクリートドリル等のビット着脱機構及びドリル工具 |
| US10088162B2 (en) | 2012-10-01 | 2018-10-02 | United Technologies Corporation | Combustor with grommet having projecting lip |
| EP2886230A1 (de) * | 2013-12-20 | 2015-06-24 | HILTI Aktiengesellschaft | Bohrkrone mit einem austauschbaren Schneidabschnitt |
| EP3213844A1 (de) | 2016-03-03 | 2017-09-06 | HILTI Aktiengesellschaft | Elektrisches handkernbohrgerät |
| CN110625822A (zh) * | 2019-10-18 | 2019-12-31 | 宜宾天顺商品混凝土有限公司 | 一种混凝土泵管钻削装置及系统 |
| EP3834969A1 (de) * | 2019-12-11 | 2021-06-16 | Hilti Aktiengesellschaft | Vorrichtung zur drehmomentübertragung von einem bohrgerät auf eine bohrkrone |
| EP3834970A1 (de) | 2019-12-11 | 2021-06-16 | Hilti Aktiengesellschaft | Vorrichtung zur drehmomentübertragung von einem bohrgerät auf eine bohrkrone |
| US11623285B2 (en) * | 2021-03-01 | 2023-04-11 | Andrew T. K. Dewberry | Coring device for cutting holes through a structure |
| JP2023107577A (ja) * | 2022-01-24 | 2023-08-03 | 株式会社大林組 | 穿孔装置、着脱方法及びコアビット |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940868Y1 (ja) * | 1969-12-18 | 1974-11-09 | ||
| JPS5422281U (ja) * | 1977-07-18 | 1979-02-14 | ||
| JPS5642834U (ja) * | 1979-09-10 | 1981-04-18 | ||
| JPH03130338U (ja) * | 1990-04-17 | 1991-12-27 | ||
| JPH11309710A (ja) * | 1998-03-13 | 1999-11-09 | Hilti Ag | ドリル工具及び工具ホルダ |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3592554A (en) * | 1968-08-05 | 1971-07-13 | Akio Takahara | Trepan boring tool |
| US3817648A (en) * | 1971-09-03 | 1974-06-18 | Super Cut | Drill shank and chuck assembly for a drill press |
| DE3446296A1 (de) * | 1984-12-19 | 1986-06-26 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Hohlbohrer fuer das durchbohren von gfk-schichtstoffen |
| DE8513328U1 (de) * | 1985-05-07 | 1985-10-31 | Geißler & Kuper GmbH Diamantwerkzeug - Wiederaufbereitung, 3100 Celle | Diamantbohrkrone mit Schaftrohr und Rohrgewindeanschluß |
| ES2056447T3 (es) * | 1989-04-05 | 1994-10-01 | Geissler & Kuper Gmbh | Acoplamiento de conexion para taladradora con aspiracion de polvo. |
| DE4027820A1 (de) * | 1990-09-01 | 1992-03-05 | Hilti Ag | Einsteckschaft mit zentraler bohreraufnahme |
| JPH0747244B2 (ja) * | 1991-02-19 | 1995-05-24 | 株式会社ミヤナガ | コアドリル |
| JP2653640B2 (ja) * | 1994-09-21 | 1997-09-17 | 株式会社ハウスビーエム | 円筒状孔開け工具の装着構造 |
| DE29503542U1 (de) * | 1995-03-02 | 1995-04-13 | Biedron, Ralf, 44879 Bochum | Bohrsatz mit Hohlbohrer für Bohrungen in Mauerwerken |
| JP3335604B2 (ja) * | 1999-08-05 | 2002-10-21 | 株式会社ニコテック | 分離型ホールソー |
| DE10005365A1 (de) * | 2000-02-07 | 2001-08-09 | Hilti Ag | Bohrkrone |
| JP2002337133A (ja) * | 2001-05-16 | 2002-11-27 | Mitsubishi Materials Corp | 穿孔装置及び穿孔工具 |
| JP3130338U (ja) * | 2007-01-11 | 2007-03-22 | 友勁科技股▲ふん▼有限公司 | 平板対称式アンテナ、および、そのアンテナを有する無線ネットワーク装置 |
-
2002
- 2002-09-20 JP JP2002275427A patent/JP4363019B2/ja not_active Expired - Fee Related
-
2003
- 2003-09-02 TW TW092124179A patent/TW200405848A/zh not_active IP Right Cessation
- 2003-09-08 KR KR1020057002434A patent/KR100874520B1/ko not_active Expired - Fee Related
- 2003-09-08 EP EP03797553A patent/EP1541267A4/en not_active Withdrawn
- 2003-09-08 US US10/528,233 patent/US7534076B2/en not_active Expired - Fee Related
- 2003-09-08 AU AU2003264391A patent/AU2003264391A1/en not_active Abandoned
- 2003-09-08 WO PCT/JP2003/011432 patent/WO2004026513A1/ja not_active Ceased
- 2003-09-08 CN CNB038221292A patent/CN1329151C/zh not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940868Y1 (ja) * | 1969-12-18 | 1974-11-09 | ||
| JPS5422281U (ja) * | 1977-07-18 | 1979-02-14 | ||
| JPS5642834U (ja) * | 1979-09-10 | 1981-04-18 | ||
| JPH03130338U (ja) * | 1990-04-17 | 1991-12-27 | ||
| JPH11309710A (ja) * | 1998-03-13 | 1999-11-09 | Hilti Ag | ドリル工具及び工具ホルダ |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1541267A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8608413B2 (en) | 2006-11-06 | 2013-12-17 | Kabushiki Kaisha Miyanaga | Shank attachment device |
| CN115488399A (zh) * | 2022-10-28 | 2022-12-20 | 浙江欣兴工具股份有限公司 | 一种快拆结构、钻孔装置及快拆方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050056970A (ko) | 2005-06-16 |
| EP1541267A1 (en) | 2005-06-15 |
| TWI315697B (ja) | 2009-10-11 |
| US20050260048A1 (en) | 2005-11-24 |
| JP2004106148A (ja) | 2004-04-08 |
| CN1681615A (zh) | 2005-10-12 |
| JP4363019B2 (ja) | 2009-11-11 |
| AU2003264391A1 (en) | 2004-04-08 |
| KR100874520B1 (ko) | 2008-12-16 |
| EP1541267A4 (en) | 2010-06-02 |
| CN1329151C (zh) | 2007-08-01 |
| US7534076B2 (en) | 2009-05-19 |
| TW200405848A (en) | 2004-04-16 |
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