JP2001198916A - Cylindrical cutting tool and cutting device with dust collector - Google Patents

Cylindrical cutting tool and cutting device with dust collector

Info

Publication number
JP2001198916A
JP2001198916A JP2000013061A JP2000013061A JP2001198916A JP 2001198916 A JP2001198916 A JP 2001198916A JP 2000013061 A JP2000013061 A JP 2000013061A JP 2000013061 A JP2000013061 A JP 2000013061A JP 2001198916 A JP2001198916 A JP 2001198916A
Authority
JP
Japan
Prior art keywords
cylindrical
cutting tool
centering
setting means
centering member
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.)
Pending
Application number
JP2000013061A
Other languages
Japanese (ja)
Inventor
Akira Akaishi
晃 赤石
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.)
Unika Co Ltd
Original Assignee
Unika Co Ltd
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 Unika Co Ltd filed Critical Unika Co Ltd
Priority to JP2000013061A priority Critical patent/JP2001198916A/en
Publication of JP2001198916A publication Critical patent/JP2001198916A/en
Pending legal-status Critical Current

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  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical cutting tool which can continuously remove clips generated by a cutting blade at the tip of a cylindrical body without removing a centering member (center drill, etc.), during boring operation. SOLUTION: A centering member setting means 108, in which a ring-shaped chip collection space 126 is formed between the side of a recessed place 120 and the surface of a centering member 106, has a chip discharge hole 142 for making the space 126 communicates with the outside of the means 108. A ring- shaped joint member 146 which is sealed and forms a ring-shaped space 148 communicating with the hole 142 is installed between it and the peripheral surface of the means 108, and the cutting dust generated in a cutting blade 102 part at the tip of the cylindrical body 104 is recovered in a chip collector 154 through the space 126, the hole 142, and the space 148.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】本発明は、壁などに穿孔作業を行うための
円筒状切削工具に関する。
[0001] The present invention relates to a cylindrical cutting tool for performing a drilling operation on a wall or the like.

【0002】[0002]

【従来の技術】従来のこの種切削工具は、図1に示すよ
うに、先端縁に切削刃10が設けられた円筒状のボディ
12を有し、その後端に取付けられたシャンク14を電
動ドリルの如き駆動装置に装着し、回転駆動することに
よって、穿孔作業を行うようになっている。円筒状ボデ
ィ12内部には、その中心軸線に沿って延びる芯出し部材
としてのセンタードリル20が設定され、その後端は、
シャンク14に形成された凹所16に挿入固定され、前
端は円筒状ボディ12の先端縁よりも前方に突出するよう
にされており、穿孔作業に当たっては、該センタードリ
ルが最初に被穿孔部材に当てられ、穿孔部分の中心を決
める作用(すなわち、芯出し)を行うようになってい
る。図2は、他の形式の芯出し部材22を備えた例を示
している。すなわち、この芯出し部材は、シャンク14に
固定された円筒状部材24と、該円筒状部材に保持され
たセンターピン26とを有し、センターピンの後端は円
筒状部材24内に摺動可能に挿入されており、且つ、同円
筒状部材内に設定された図示しない圧縮バネによって前
方に付勢されている。穿孔作業に当たっては、センター
ドリルと同様に、センターピンの先端が被穿孔物の穿孔
個所の中心に当てられて、芯出しを行う。ただし、この
場合は、センタードリルのようにセンターピンが切削す
ることはなく、切削が進むに従って、後方に押され、円
筒状部材24内へ押しこまれる。
2. Description of the Related Art As shown in FIG. 1, a conventional cutting tool of this type has a cylindrical body 12 provided with a cutting blade 10 at a leading edge thereof, and a shank 14 attached to a rear end thereof is electrically drilled. The drilling operation is performed by attaching to a driving device as described above and rotating the device. Inside the cylindrical body 12, a center drill 20 is set as a centering member extending along the center axis, and the rear end is
It is inserted and fixed in a recess 16 formed in the shank 14, and its front end is made to protrude forward from the front end edge of the cylindrical body 12. In drilling work, the center drill is first inserted into the member to be drilled. It is adapted to perform an action of determining the center of the perforated portion (that is, centering). FIG. 2 shows an example in which another type of centering member 22 is provided. That is, this centering member has a cylindrical member 24 fixed to the shank 14 and a center pin 26 held by the cylindrical member, and the rear end of the center pin slides into the cylindrical member 24. And is urged forward by a compression spring (not shown) set in the cylindrical member. In the drilling operation, like the center drill, the tip of the center pin is applied to the center of the drilling location of the object to be drilled to perform centering. However, in this case, the center pin is not cut like a center drill, but is pushed backward and pushed into the cylindrical member 24 as the cutting progresses.

【0003】[0003]

【発明が解決しようとする課題】このような円筒状切削
工具にあっては、穿孔作業の際に円筒状ボディ先端で発
生する切削屑を、切削作業中に外部に飛散させずに回収
することが望まれる。そのため、図2に示す工具では、
芯出し部材の後端を受け入れるため形成したシャンク内
の凹所16と連通する半径方向の貫通孔28を形成し、
これを、当該シャンクの外周に設けたジョイント部材3
0及びそれに接続されたホース31を介して、図示しな
い吸塵装置に連通するようにしてある。この工具では、
穿孔作業の初めの段階で芯出しが行われた後、当該芯出
し部材22をシャンクから外して穿孔作業を続け、円筒
状ボディ内に集まる切削屑を、上記凹所16、貫通孔2
8、及び、ホース31を介して集塵装置に吸引して回収
するようになっている。
In such a cylindrical cutting tool, the cutting chips generated at the tip of the cylindrical body during the drilling operation are collected without being scattered outside during the cutting operation. Is desired. Therefore, in the tool shown in FIG.
Forming a radial through hole 28 communicating with the recess 16 in the shank formed to receive the rear end of the centering member;
This is connected to a joint member 3 provided on the outer periphery of the shank.
0 and a hose 31 connected thereto are connected to a dust suction device (not shown). With this tool,
After the centering is performed in the initial stage of the drilling operation, the centering member 22 is removed from the shank and the drilling operation is continued, and the cutting chips collected in the cylindrical body are removed by the recesses 16 and the through holes 2.
8, and is sucked and collected by the dust collecting device via the hose 31.

【0004】このように、切削作業の際に吸塵を行うよ
うにする場合には、作業が煩雑となり、従って、その分
だけ、切削作業の時間も長くなっていた。また、芯出し
部材を取り付けた状態での切削作業時には、凹所16が
塞がれた状態となっているために、吸塵による切削屑の
回収は行われず、多くの切削屑の飛散する結果となって
いた。
[0004] As described above, in the case where dust is absorbed during the cutting operation, the operation becomes complicated, and accordingly, the cutting operation time is correspondingly increased. Also, during the cutting operation with the centering member attached, the recess 16 is closed, so that the cutting chips are not collected by dust collection, and a large amount of cutting chips are scattered. Had become.

【0005】本発明は、このような点に鑑み、穿孔作業
中に芯出し部材(センタードリル等)の取外し等の作業を
することなく、円筒状ボディ先端の切削刃で発生する切
削屑を連続的に排除することができるようにした円筒状
切削工具及びそのような工具と集塵装置とからなる切削
装置を提供することを目的としている。
In view of the foregoing, the present invention continuously removes cuttings generated by the cutting blade at the tip of the cylindrical body without removing the centering member (such as a center drill) during the drilling operation. It is an object of the present invention to provide a cylindrical cutting tool that can be eliminated from the outside and a cutting device including such a tool and a dust collecting device.

【0006】[0006]

【課題を解決するための手段】すなわち、本発明に係る
円筒状工具は、先端が開口端とされ、該開口端の周縁に
切削刃が取り付けられている円筒状ボディと、該円筒状
ボディの後端に取付けられ、該後端から当該円筒状ボデ
ィの中心軸線に沿って当該円筒状ボディ内を通り同円筒
状ボディの前記先端を超えて前方に伸びる芯出し部材を
設定するための芯出し部材設定手段とを有する円筒状切
削工具であって、芯出し部材設定手段が、芯出し部材の
後端部分を受け入れるため、円筒状ボディの内部と連通
して前記中心軸線に沿って所定長さだけ後方に延びる凹
所を有し、該凹所の側面と芯出し部材の周面との間に集
塵空所を形成するようになされており、また、同芯出し
部材設定手段は、前記集塵空所と当該芯出し部材設定手
段の外部とを連通する塵排出孔とを有することを基本的
特徴とする。
That is, a cylindrical tool according to the present invention has a cylindrical body having a front end having an open end and a cutting blade attached to a peripheral edge of the open end, Centering for setting a centering member attached to the rear end and extending forward from the rear end through the cylindrical body along the central axis of the cylindrical body and beyond the front end of the cylindrical body. A cylindrical cutting tool having member setting means, wherein the centering member setting means communicates with the inside of the cylindrical body to receive a rear end portion of the centering member and has a predetermined length along the central axis. A recess extending only rearward, a dust collecting cavity is formed between the side surface of the recess and the peripheral surface of the centering member, and the centering member setting means includes: Communication between the dust collection space and the outside of the centering member setting means And basically it characterized by having a dust discharge hole that.

【0007】斯様な構成とすることにより、塵排出孔を
当該円筒状切削工具の外部にある吸塵装置に連通してお
けば、該円筒状切削工具による切削作業が行われる際に
円筒状ボディ先端の切削刃部で発生する切削屑は、前記
集塵空所及び塵排出孔を通して、集塵装置によって吸塵
されることになる。
[0007] With this configuration, if the dust discharge hole is communicated with a dust suction device outside the cylindrical cutting tool, the cylindrical body is cut when the cylindrical cutting tool performs a cutting operation. The cutting waste generated at the cutting blade at the tip is absorbed by the dust collecting device through the dust collecting space and the dust discharging hole.

【0008】具体的には、前記凹所が円筒状とされ、該
円筒状凹所の直径が、その中に受け入れられる芯出し部
材の直径よりも大きく、同凹所の円筒状側面と芯出し部
材との間に環状の集塵空所が形成されるようにする。
Specifically, the recess is cylindrical, and the diameter of the cylindrical recess is larger than the diameter of the centering member received therein, and the cylindrical side surface of the recess is aligned with the centering member. An annular dust collecting space is formed between the member and the member.

【0009】より具体的には、芯出し設定手段の周囲に
は、該芯出し設定手段をその軸線を中心に回転可能に支
持する環状ジョイント部材を設け、該ジョイントが芯出
し設定手段の外周面との間に環状空間を形成し、該環状
空間を外部からは密封し、前記塵排出孔には連通し、外
部に設定される吸塵装置に連通するようにする。
More specifically, an annular joint member which supports the centering setting means so as to be rotatable about its axis is provided around the centering setting means, and the joint is an outer peripheral surface of the centering setting means. And an annular space is formed therebetween, and the annular space is sealed from the outside, communicates with the dust discharge hole, and communicates with a dust suction device set outside.

【0010】更に具体的には、円筒状ボディの後端が円
形状の閉止部材によって閉止されており、該閉止部材の
中心には貫通孔が形成され、前記芯出し部材設定手段
が、該貫通孔内に挿入固定された前端部分と、該前端部
分から後方に延びる、横断面が円形の後方延長部分とを
有しており、前記環状ジョイント部材が、該後方延長部
分の周囲に設定されており、前記凹所が芯出し部材設定
手段の前端部分の端面から前記後方延長部分内に延び、
前記塵排出孔は該凹所から当該後方延長部分を半径方向
に延びその外周面に開口するようになされる。後方延長
部分の後端部分は、電動ドリル等の回転駆動装置に連結
される。
More specifically, the rear end of the cylindrical body is closed by a circular closing member, and a through hole is formed at the center of the closing member. A front end portion inserted and fixed in the hole, and a rear extension portion extending rearward from the front end portion and having a circular cross section, wherein the annular joint member is set around the rear extension portion; Wherein the recess extends from the end face of the front end portion of the centering member setting means into the rear extension portion,
The dust discharge hole extends radially from the recess to the rear extension and opens to the outer peripheral surface thereof. The rear end portion of the rear extension portion is connected to a rotary drive device such as an electric drill.

【0011】芯出し部材設定手段の前記塵排出孔はその
半径方向外側から内側に向かうに従い、当該円筒状切削
工具が切削作業の際に回転される方向に傾斜するように
することが、集塵効率を上げる点で好ましい。
The dust collection hole of the centering member setting means may be inclined in a direction in which the cylindrical cutting tool is rotated during a cutting operation from a radially outer side to an inner side. It is preferable in terms of increasing efficiency.

【0012】更に、本発明は、前記の如き円筒状切削工
具と、前記芯出し設定手段の周囲に取付けられ、該芯出
し設定手段を前記中心軸線を中心に回転可能に支持し、
芯出し設定手段の外周面との間に、外部からは密封さ
れ、且つ、前記塵排出孔に連通されている環状の塵排出
空間を形成している環状ジョイント部材と、該環状ジョ
イント部材に連結され、前記塵排出空間に連通される集
塵装置とを有する、集塵装置付き切削装置をも提供す
る。
Further, the present invention provides a cylindrical cutting tool as described above, which is mounted around the centering setting means, and supports the centering setting means so as to be rotatable about the center axis.
An annular joint member that forms an annular dust discharge space that is sealed from the outside and communicates with the dust discharge hole between the outer peripheral surface of the centering setting means and the annular joint member; The present invention also provides a cutting device with a dust collecting device, the cutting device having a dust collecting device communicating with the dust discharging space.

【0013】[0013]

【発明の実施形態】図3は、本発明に係る円筒状切削工
具100の実施形態が示されている。
FIG. 3 shows an embodiment of a cylindrical cutting tool 100 according to the present invention.

【0014】図示のように、この円筒状切削工具100
は、先端(図においては右端)が開口端とされ、該開口端
の周縁に切削刃102が取り付けられている円筒状ボデ
ィ104と、心出し部材(すなわちセンタードリル)10
6と、該円筒状ボディの後端に取付けられ、心出し部材
106を円筒状ボディ104の中心軸線に沿って伸びる
よう設定するための芯出し部材設定手段108(前述し
た従来例におけるシャンク)とを有している。
As shown, the cylindrical cutting tool 100
Is a cylindrical body 104 having a tip (the right end in the figure) as an open end, and a cutting blade 102 attached to the periphery of the open end, and a centering member (that is, a center drill) 10.
6, and a centering member setting means 108 (a shank in the above-described conventional example) attached to the rear end of the cylindrical body and configured to set the centering member 106 so as to extend along the central axis of the cylindrical body 104. have.

【0015】具体的には、円筒状ボディ104の後端
は、それと一体成形された円形状の閉止部材110によ
って閉止されている。該閉止部材の中心には筒状突起1
12によって画定された貫通孔114が形成されてい
る。芯出し部材設定手段108は、貫通孔114内に挿
入固定された前端部分116と、該前端部分から後方に
延びる、横断面が円形の後方延長部分118とを有する
棒状部材とされており、その前端部分から中心軸線に沿
って後方に、心出し部材の後端部分106’を受け入れ
る細長い凹所120が形成されており、その後端部分
は、電動ドリル等の回転駆動装置に連結されるようにな
っている。凹所120の内径は、芯出し部材106の直
径よりも大きく、凹所内面と芯出し部材外周面との間に
は環状の集塵空所126が形成されている。集塵凹所1
20の後端には、心出し部材106の後端とほぼ同じ内
径の小径凹所130が形成されており、該心出し部材の
後端を受け入れている。受け入れられた後端は、芯出し
部材設定手段108の側面から半径内方に貫通している
締付け孔134を通された止ねじ138によって締付け
られ、当該心出し部材106が芯出し部材設定手段10
8に固定されている。
Specifically, the rear end of the cylindrical body 104 is closed by a circular closing member 110 integrally formed therewith. A cylindrical projection 1 is provided at the center of the closing member.
A through hole 114 defined by 12 is formed. The centering member setting means 108 is a rod-shaped member having a front end portion 116 inserted and fixed in the through hole 114 and a rear extension portion 118 having a circular cross section extending rearward from the front end portion. An elongate recess 120 for receiving the rear end portion 106 'of the centering member is formed rearwardly along the central axis from the front end portion, and the rear end portion is adapted to be connected to a rotary drive such as an electric drill. Has become. The inner diameter of the recess 120 is larger than the diameter of the centering member 106, and an annular dust collecting space 126 is formed between the inner surface of the recess and the outer circumferential surface of the centering member. Dust collection recess 1
A small diameter recess 130 having substantially the same inside diameter as the rear end of the centering member 106 is formed at the rear end of the centering member 106, and receives the rear end of the centering member. The received rear end is tightened by a set screw 138 passed through a tightening hole 134 penetrating radially inward from the side surface of the centering member setting means 108, and the centering member 106 is moved to the centering member setting means 10.
8 is fixed.

【0016】芯出し部材設定手段108には、更に、凹
所120から半径方向に伸び、当該芯出し部材設定手段
108の外周面に開口する4個の塵排出孔142が、同
設定手段108の周方向で約90度の間隔をもって形成
されている。また、芯出し部材設定手段の外周面上に
は、ベアリング144を介して、当該芯出し部材設定手
段108をその中心軸線を中心に回転自在に支持する環
状ジョイント部材146が設けられており、芯出し部材
設定手段108の外周面上との間に、環状空間148を
形成しており、前記塵排出孔142は、この環状空間1
48に連通している。該環状空間は外部からは密封さ
れ、ジョイント部材146に設けられたホース接続口1
50に接続されるホース152を介して吸塵装置154
に連通されている。
The centering member setting means 108 further has four dust discharge holes 142 extending radially from the recess 120 and opening on the outer peripheral surface of the centering member setting means 108. They are formed at intervals of about 90 degrees in the circumferential direction. An annular joint member 146 is provided on the outer peripheral surface of the centering member setting means via a bearing 144 so as to rotatably support the centering member setting means 108 around its central axis. An annular space 148 is formed between the annular space 148 and the outer peripheral surface of the delivery member setting means 108.
48. The annular space is sealed from the outside, and the hose connection port 1 provided in the joint member 146 is provided.
Dust suction device 154 via hose 152 connected to
Is communicated to.

【0017】図3に示すように、塵排出孔142は、集
塵効率を良くするため、その半径方向外側から内側に向
かうに従い、当該円筒状切削工具が切削作業の際に回転
される方向に傾斜されている。
As shown in FIG. 3, in order to improve the dust collection efficiency, the dust discharge holes 142 are arranged in the direction in which the cylindrical cutting tool is rotated during the cutting operation from the outside to the inside in the radial direction. It is inclined.

【0018】この工具を用いて、穿孔作業を行う場合
は、円筒状切削工具のシャンクを回転駆動装置に接続す
るとともに、ホース152を介して、集塵装置154に
接続して行い、切削に伴って円筒状ボディに発生する切
削屑を、集塵凹所126、塵排出孔142、環状空間1
48、ホース152を介して集塵装置154に集塵しな
がら行う。
When the drilling operation is performed using this tool, the shank of the cylindrical cutting tool is connected to a rotary driving device, and is connected to a dust collecting device 154 via a hose 152. The dust generated in the cylindrical body by the dust collecting recess 126, the dust discharge hole 142, the annular space 1
48, the dust collection is performed while collecting dust in the dust collection device 154 via the hose 152.

【0019】[0019]

【発明の効果】本発明に係る円筒状切削工具は、上記の
如く構成されるので、当該工具の切削刃部にて発生する
切削屑を適正に排除しながら、効率良く穿孔作業を行う
ことができる。
Since the cylindrical cutting tool according to the present invention is configured as described above, it is possible to efficiently perform drilling work while appropriately removing cutting chips generated at the cutting blade portion of the tool. it can.

【図面の簡単な説明】[Brief description of the drawings]

【図1】 従来の円筒状切削工具の断面側面図である。FIG. 1 is a sectional side view of a conventional cylindrical cutting tool.

【図2】 従来の他の円筒状切削工具の断面側面図であ
る。
FIG. 2 is a sectional side view of another conventional cylindrical cutting tool.

【図3】 本発明に係る円筒状切削工具の断面側面図で
ある。
FIG. 3 is a sectional side view of a cylindrical cutting tool according to the present invention.

【図4】 図3の4-4線断面図である。 100 円筒状切削工具; 102 切削刃 104 円筒状ボディ 106 芯出し部材(センタードリル) 108 芯出し部材設定手段 120 凹所 126 環状集塵空所 142 塵排出孔 146 ジョイント部材 148 環状空間 154 集塵装置FIG. 4 is a sectional view taken along line 4-4 of FIG. 3; REFERENCE SIGNS LIST 100 cylindrical cutting tool; 102 cutting blade 104 cylindrical body 106 centering member (center drill) 108 centering member setting means 120 recess 126 annular dust collecting cavity 142 dust discharging hole 146 joint member 148 annular space 154 dust collecting device

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】先端が開口端とされ、該開口端の周縁に切
削刃が取り付けられている円筒状ボディと、円筒状ボデ
ィの中心軸線に沿って当該円筒状ボディ内を伸びる芯出
し部材と、該円筒状ボディの後端に取付けられ、前記心
出し部材を当該円筒状ボディの後端に固定する芯出し部
材設定手段とを有する円筒状切削工具において、 芯出し部材設定手段が、芯出し部材の後端部分を受け入
れるため、前記円筒状ボディの内部と連通して前記中心
軸線に沿って所定長さだけ後方に延びる凹所を有し、該
凹所の側面と芯出し部材の周面との間に集塵空所を形成
するようになされており、 また、同芯出し部材設定手段は、前記集塵空所と当該芯
出し部材設定手段の外部とを連通する塵排出孔とを有す
ることを特徴とする円筒状切削工具。
1. A cylindrical body having an open end, and a cutting blade attached to a peripheral edge of the open end, and a centering member extending in the cylindrical body along a central axis of the cylindrical body. And a centering member setting means fixed to the rear end of the cylindrical body, the centering member being fixed to the rear end of the cylindrical body. A recess communicating with the interior of the cylindrical body and extending rearwardly by a predetermined length along the central axis for receiving a rear end portion of the member, the side surface of the recess and the peripheral surface of the centering member; And a dust collecting hole is formed between the dust collecting hole and the dust collecting hole, and a dust discharge hole communicating the outside of the centering member setting means with the dust collecting hole. A cylindrical cutting tool comprising:
【請求項2】前記凹所が円筒状とされ、該円筒状凹所の
内径が、その中に受け入れられる芯出し部材の直径より
も大きく、同凹所の内側面と芯出し部材の外周面との間
に環状の集塵空所が形成されていることを特徴とする請
求項1に記載の円筒状切削工具。
2. The recess has a cylindrical shape, the inner diameter of the cylindrical recess being larger than the diameter of the centering member received therein, and the inner surface of the recess and the outer peripheral surface of the centering member. The cylindrical cutting tool according to claim 1, wherein an annular dust collecting space is formed between the cylindrical cutting tool and the cylindrical cutting tool.
【請求項3】前記芯出し設定手段の周囲に取付けられ、
該芯出し設定手段をその軸線を中心に回転可能に支持す
る環状ジョイント部材を有し、該ジョイントが芯出し設
定手段の外周面との間に環状空間を形成し、該環状空間
は外部からは密封され、且つ、前記塵排出孔に連通され
ており、更に、当該円筒状工具の外部に設定される吸塵
装置に連通されるようになされていることを特徴とする
請求項1もしくは2に記載の円筒状切削工具。
3. The apparatus is mounted around the centering setting means,
An annular joint member that supports the centering setting means so as to be rotatable about its axis; the joint forms an annular space between the centering setting means and the outer peripheral surface of the centering setting means; 3. The device according to claim 1, wherein the device is sealed, communicates with the dust discharge hole, and further communicates with a dust suction device set outside the cylindrical tool. 4. Cylindrical cutting tool.
【請求項4】前記円筒状ボディの後端が円形状の閉止部
材によって閉止されており、該閉止部材の中心には貫通
孔が形成され、前記芯出し部材設定手段が該貫通孔内に
挿入固定された前端部分と、該前端部分から後方に延び
る、横断面が円形の後方延長部分とを有しており、前記
環状ジョイント部材が、該後方延長部分の周囲に設定さ
れており、前記凹所が前記前端部分の端面から前記後方
延長部分内に延び、前記塵排出孔は前記凹所から当該後
方延長部分を半径方向に延び当該芯出し部材設定手段の
外周面に開口していることを特徴とする請求項3に記載
の円筒状切削工具。
4. A rear end of said cylindrical body is closed by a circular closing member, a through hole is formed at the center of said closing member, and said centering member setting means is inserted into said through hole. A fixed front end portion and a rearward extension portion extending rearward from the front end portion and having a circular cross section, wherein the annular joint member is set around the rearward extension portion; Extending from the end face of the front end portion into the rear extension portion, the dust discharge hole extending radially from the recess to the rear extension portion and opening to the outer peripheral surface of the centering member setting means. The cylindrical cutting tool according to claim 3, characterized in that:
【請求項5】前記半径方向に延びる塵排出孔が、その半
径方向外側から内側に向かうに従い、当該円筒状切削工
具が切削作業の際に回転される方向に傾斜していること
を特徴とする請求項1乃至4のいずれかに記載の円筒状
切削工具。
5. The method according to claim 5, wherein the radially extending dust discharge hole is inclined in a direction in which the cylindrical cutting tool is rotated during the cutting operation from the outside in the radial direction to the inside. The cylindrical cutting tool according to claim 1.
【請求項6】請求項3に規定の円筒状切削工具と、前記
ジョイント部材に連結され、前記環状空間に連通される
集塵装置とを有する切削装置。
6. A cutting device comprising: the cylindrical cutting tool defined in claim 3; and a dust collector connected to the joint member and communicated with the annular space.
【請求項7】請求項4に規定の円筒状切削工具と、前記
ジョイント部材に連結され、前記環状空間に連通される
集塵装置とを有する切削装置。
7. A cutting device comprising: the cylindrical cutting tool defined in claim 4; and a dust collecting device connected to the joint member and communicated with the annular space.
【請求項8】前記半径方向に延びる塵排出孔が、その半
径方向外側から内側に向かうに従い、当該円筒状切削工
具が切削作業の際に回転される方向に傾斜していること
を特徴とする請求項6もしくは7に記載の切削装置。
8. The method according to claim 8, wherein the radially extending dust discharge hole is inclined in a direction in which the cylindrical cutting tool is rotated during the cutting operation from the outside in the radial direction to the inside. The cutting device according to claim 6.
JP2000013061A 2000-01-21 2000-01-21 Cylindrical cutting tool and cutting device with dust collector Pending JP2001198916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000013061A JP2001198916A (en) 2000-01-21 2000-01-21 Cylindrical cutting tool and cutting device with dust collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000013061A JP2001198916A (en) 2000-01-21 2000-01-21 Cylindrical cutting tool and cutting device with dust collector

Publications (1)

Publication Number Publication Date
JP2001198916A true JP2001198916A (en) 2001-07-24

Family

ID=18540708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000013061A Pending JP2001198916A (en) 2000-01-21 2000-01-21 Cylindrical cutting tool and cutting device with dust collector

Country Status (1)

Country Link
JP (1) JP2001198916A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010234606A (en) * 2009-03-31 2010-10-21 Consec Corp Core drill
WO2018052118A1 (en) * 2016-09-16 2018-03-22 株式会社ミヤナガ Core drill
JP6975449B6 (en) 2017-09-22 2022-01-17 株式会社 Konnopro Swivel device for dust collector type drilling machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010234606A (en) * 2009-03-31 2010-10-21 Consec Corp Core drill
WO2018052118A1 (en) * 2016-09-16 2018-03-22 株式会社ミヤナガ Core drill
JP6975449B6 (en) 2017-09-22 2022-01-17 株式会社 Konnopro Swivel device for dust collector type drilling machine

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