JP3418377B2 - Tip tool for rising pipe cutting - Google Patents
Tip tool for rising pipe cuttingInfo
- Publication number
- JP3418377B2 JP3418377B2 JP2000383883A JP2000383883A JP3418377B2 JP 3418377 B2 JP3418377 B2 JP 3418377B2 JP 2000383883 A JP2000383883 A JP 2000383883A JP 2000383883 A JP2000383883 A JP 2000383883A JP 3418377 B2 JP3418377 B2 JP 3418377B2
- Authority
- JP
- Japan
- Prior art keywords
- rising pipe
- shaft rod
- rod portion
- tip
- disk
- 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.)
- Expired - Fee Related
Links
Landscapes
- Accessories And Tools For Shearing Machines (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、床面から突出した
立上り管を、床面より下方の所定位置にて、内面側から
輪切り状に切断する立上り管切断用先端工具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rising pipe cutting tip tool for cutting a rising pipe protruding from a floor surface into a circular slice from the inner surface side at a predetermined position below the floor surface.
【０００２】[0002]
【従来の技術】従来の立上り管切断用先端工具は、先端
に円盤カッタを軸心と同心状に取り付けた軸棒部を備
え、該軸棒部が、その基端に連結される駆動機により、
軸心廻りに回転して、床面から突出した立上り管を、床
面より下方の所定位置にて、その内部から輪切り状に切
断するように構成されていた。2. Description of the Related Art A conventional tool for cutting a rising pipe is provided with a shaft rod portion having a disk cutter attached concentrically with the shaft center at the tip, and the shaft rod portion is driven by a driving machine connected to its base end. ,
The rising pipe, which rotates around the axis and projects from the floor, is cut from the inside into a slice at a predetermined position below the floor.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
立上り管切断用先端工具では、切断する立上り管の所定
（深さ）位置が目分量であって、立上り管の切断面が水
平とならず、その立上り管に他の配管を確実に接続する
ことができず、漏水の原因となっていた。また、予め、
切断する所定位置に印を付ける必要があり、面倒であっ
た。However, in the conventional tip tool for cutting the rising pipe, the predetermined (depth) position of the rising pipe to be cut is the index, and the cutting surface of the rising pipe is not horizontal, Other pipes could not be reliably connected to the rising pipe, causing water leakage. Also, in advance,
It was troublesome because it was necessary to mark the predetermined position for cutting.
【０００４】そこで、本発明は、立上り管を、所定の
（深さ）位置にて、簡単に水平に切断することができる
立上り管切断用先端工具を提供することを目的とする。Therefore, an object of the present invention is to provide a rising pipe cutting tool capable of easily cutting a rising pipe horizontally at a predetermined (depth) position.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明に係る立上り管切断用先端工具は、先端に
円盤カッタを軸心と同心状に取り付けた軸棒部を備え、
該軸棒部が、その基端に連結される駆動機により、軸心
廻りに回転して、立上り管を内部から切断する立上り管
切断用先端工具において、上記軸棒部に外嵌された当て
円板と、該当て円板の外周面から内周面を貫設したねじ
孔に螺合する止めねじと、を備え、上記軸棒部には、平
面視上記駆動機による回転方向とは反対方向の螺旋溝
が、該軸棒部の基端側から先端側に設けられ、上記止め
ねじの先端を上記当て円板の内周面から突出させて上記
軸棒部の螺旋溝の溝底部に圧接させることで、上記当て
円板が上記軸棒部に止着し、上記当て円板の円盤カッタ
側の一面を上記立上り管の開口端面に当接させながら、
該立上り管を切断するものである。In order to achieve the above object, a riser cutting tool according to the present invention is provided with a shaft rod portion having a disk cutter attached concentrically with the shaft center at the tip,
In the rising pipe cutting tip tool for cutting the rising pipe from the inside, the shaft rod part is rotated around the shaft center by the driving machine connected to the base end of the shaft rod part, and is fitted to the shaft rod part. A disk and a set screw that is screwed into a screw hole that penetrates the inner peripheral surface from the outer peripheral surface of the disk are provided, and the shaft rod portion is opposite to the rotation direction of the driving machine in plan view. Direction spiral groove is provided from the base end side to the tip side of the shaft rod portion, and the tip of the set screw is protruded from the inner peripheral surface of the contact disk to form a groove bottom portion of the spiral groove of the shaft rod portion. By pressing, the contact disk is fixed to the shaft rod portion, while contacting one surface of the contact disk on the disk cutter side with the opening end surface of the rising pipe,
The rising pipe is cut.
【０００６】また、当て円板の一面には、その外周縁に
沿って、環状膨出部が設けられている。さらに、円盤カ
ッタが、軸棒部の先端面に、軸棒部の軸心方向から、ビ
ス止めされている。Further, an annular bulge is provided on one surface of the contact disk along the outer peripheral edge thereof. Further, the disc cutter is fixed to the tip end surface of the shaft rod portion with screws from the axial center direction of the shaft rod portion.
【０００７】[0007]
【発明の実施の形態】以下、実施の形態を示す図面に基
づき、本発明を詳説する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings showing the embodiments.
【０００８】本発明に係る立上り管切断用先端工具は、
図１〜図３に示すように、先端１ａに円盤カッタ２を取
り付けた軸棒部１を備え、該軸棒部１が、その基端１ｂ
に連結される駆動機４により、軸心Ｌ廻りに回転して、
床面Ｇから突出した（排水用塩ビ管などの）立上り管３
を、床面Ｇより下方の所定位置にて、内部から輪切り状
に切断するものである。The tip tool for cutting the rising pipe according to the present invention is
As shown in FIGS. 1 to 3, a shaft rod portion 1 having a disk cutter 2 attached to a tip 1a is provided, and the shaft rod portion 1 has a base end 1b.
Is rotated about the axis L by the driving machine 4 connected to
Standing pipe 3 (such as PVC pipe for drainage) protruding from the floor surface G
Is cut into a sliced shape from the inside at a predetermined position below the floor surface G.
【０００９】駆動機４は、例えば、電気又はエアー式の
グラインダ等の携帯用動力工具であり、駆動機４の駆動
軸９が、軸棒部１の基端１ｂに設けられた軸心Ｌ方向の
取付孔10に、連結して、軸棒部１を軸心Ｌ廻りの矢印Ａ
方向に回転させる。The drive machine 4 is, for example, a portable power tool such as an electric or pneumatic grinder, and the drive shaft 9 of the drive machine 4 is provided in the base end 1b of the shaft rod portion 1 in the direction of the axis L. Connected to the mounting hole 10 of the shaft rod portion 1 and the arrow A around the shaft center L
Rotate in the direction.
【００１０】軸棒部１には、平面視駆動機４による回転
方向（矢印Ａ方向）とは反対方向の螺旋溝７が、軸棒部
１の基端１ｂ側から先端１ａ側に設けられている。例え
ば、平面視、回転Ａ方向が右方向ならば、軸棒部１には
左ねじ状に螺旋溝７を形成し、また、回転Ａ方向が左方
向ならば、螺旋溝７は右ねじ状とする。The shaft rod portion 1 is provided with a spiral groove 7 in a direction opposite to the direction of rotation (direction of arrow A) by the plan view driving machine 4 from the base end 1b side to the tip end 1a side of the shaft rod portion 1. There is. For example, in plan view, if the rotation A direction is the right direction, the spiral groove 7 is formed in the shaft rod portion 1 in the left-hand thread shape, and if the rotation A direction is the left direction, the spiral groove 7 is the right-hand thread shape. To do.
【００１１】円盤カッタ２は、外周側に、ダイヤモンド
微粉を多数有して立上り管３を切断する刃部11を備え、
軸棒部１の軸心Ｌと同心状に、軸棒部１の先端１ａ面
に、軸心Ｌ方向から、ビス止めされている。具体的に
は、円盤カッタ２の中心孔12に、軸棒部１の先端１ａの
（軸心Ｌと一致する）突部13を、嵌め込み、軸心Ｌ廻り
に所定ピッチに配設された複数個（３個）のビス14…に
て、円盤カッタ２を下方から軸棒部１の先端１ａにビス
止めしている。なお、ビス14は、（プラスチックなど
の）弾性膜を介して、軸棒部１（先端１ａ）のねじ孔に
螺合しており、ビス14の緩みを防止することができる。
従って、側面視、円盤カッタ２の下面からは、ビス14の
頭部が突出しているだけで、円盤カッタ２の下方にはデ
ッドスペースが存在せず、立上り管３の内面に、不要な
（コンクリートなどの）付着物15（図２参照）等の当り
（干渉物）があっても、付着物15付近の切断が可能とな
る。The disc cutter 2 is provided with a blade portion 11 having a large number of fine diamond powder on its outer peripheral side and cutting the rising pipe 3,
Concentric with the axis L of the shaft portion 1, it is screwed to the surface of the tip 1a of the shaft portion 1 from the direction of the axis L. Specifically, a plurality of protrusions 13 (which coincide with the axis L) of the tip 1a of the shaft rod portion 1 are fitted into the center hole 12 of the disk cutter 2 and arranged at a predetermined pitch around the axis L. The disc cutter 2 is fixed to the tip 1a of the shaft portion 1 from below by means of three (three) screws 14. The screw 14 is screwed into the screw hole of the shaft portion 1 (tip 1a) via an elastic film (plastic or the like), so that the screw 14 can be prevented from loosening.
Therefore, when viewed from the side, only the head of the screw 14 projects from the lower surface of the disk cutter 2, there is no dead space below the disk cutter 2, and the inner surface of the rising pipe 3 is not required (concrete). Even if there is a hit (interfering object) such as the adhering material 15 (see FIG. 2), it is possible to cut the vicinity of the adhering material 15.
【００１２】軸棒部１には、（環状の）当て円板５が、
軸心Ｌと同心状に外嵌されている。具体的に、当て円板
５は、その外周面から内周面を貫設したねじ孔８を有
し、該ねじ孔８には止めねじ６が螺合され、該止めねじ
６の先端６ａを、当て円板５の内周面から突出させて、
軸棒部１の螺旋溝７に嵌入状に───溝底部７ａに──
─圧接させることで、当て円板５を軸棒部１の螺旋溝７
に外嵌状に止着している。On the shaft portion 1, a (annular) contact disc 5 is provided.
It is externally fitted concentrically with the axis L. Specifically, the contact disc 5 has a screw hole 8 penetrating from the outer peripheral surface to the inner peripheral surface thereof, and a set screw 6 is screwed into the screw hole 8, and the tip 6 a of the set screw 6 is fixed. , Projecting from the inner peripheral surface of the contact disk 5,
Inserted into the spiral groove 7 of the shaft portion 1--on the groove bottom 7a--
— By pressing the contact disk 5 into the spiral groove 7 of the shaft portion 1.
It is fastened to the outside by fitting.
【００１３】そして、この当て円板５の円盤カッタ２側
の一面５ａ（下面）を、立上り管３の開口端面に当接さ
せながら、円盤カッタ２にて立上り管３を切断する。Then, the riser pipe 3 is cut by the disc cutter 2 while the one surface 5a (lower surface) of the contact disc 5 on the disc cutter 2 side is brought into contact with the opening end face of the riser pipe 3.
【００１４】止めねじ６の先端６ａは、螺旋溝７に食い
込み易いように、外周縁が突出した形状をしており、止
めねじ６の基端には、（図示省略の）六角レンチが嵌合
する六角孔16が設けられており、六角レンチにて、止め
ねじ６を螺進・螺退させることができる。The tip 6a of the set screw 6 has a projecting outer peripheral edge so that it can easily bite into the spiral groove 7, and a hexagon wrench (not shown) is fitted to the base end of the set screw 6. A hexagonal hole 16 is provided so that the set screw 6 can be screwed in and out with a hexagonal wrench.
【００１５】そして、止めねじ６の先端６ａの螺旋溝７
の溝底部７ａへの圧接状態を解除させ、かつ、先端６ａ
を螺旋溝７に嵌入させることで、止めねじ６が螺旋溝７
にガイドされて、当て円板５を、螺旋溝７に沿ってのみ
移動させることができる。この際、軸棒部１を矢印Ａ方
向（駆動機４による回転方向）に回転させることで、ね
じ作用により、当て円板５を、円盤カッタ２側に接近さ
せるように螺進させることができる。Then, the spiral groove 7 at the tip 6a of the set screw 6
Release the pressure contact with the groove bottom portion 7a, and
The set screw 6 into the spiral groove 7
Guided by, the contact disc 5 can be moved only along the spiral groove 7. At this time, by rotating the shaft rod portion 1 in the direction of arrow A (rotational direction by the driving machine 4), the contact disk 5 can be screwed by the screw action so as to approach the disk cutter 2 side. .
【００１６】また、止めねじ６の先端６ａを、当て円板
５のねじ孔８内に退出させることで、当て円板５を、軸
棒部１に対して、軸心方向にかつ軸心廻りに移動させる
ことができる。Further, the tip 6a of the set screw 6 is retracted into the screw hole 8 of the abutment disk 5, so that the abutment disk 5 can be axially and axially rotated with respect to the shaft rod portion 1. Can be moved to.
【００１７】当て円板５の一面５ａは、（環状の）平坦
面19と、該平坦面19の中央部に突設された円筒状内周壁
18と、該平坦面19の外周縁に沿って設けられた小アール
ｒを有する環状膨出部17と、から構成されている。従っ
て、当て円板５の一面５ａを、立上り管３の開口端面に
当接させたとき、環状膨出部17のみが当接し、接触面積
（及びそれによる摩擦抵抗）を小さくすることができ
る。One surface 5a of the contact disk 5 is a (annular) flat surface 19 and a cylindrical inner peripheral wall projectingly provided at the center of the flat surface 19.
18 and an annular bulging portion 17 having a small radius r provided along the outer peripheral edge of the flat surface 19. Therefore, when the one surface 5a of the contact disk 5 is brought into contact with the opening end surface of the rising pipe 3, only the annular bulging portion 17 comes into contact with the contact surface (and thus the frictional resistance).
【００１８】また、当て円板５の半径の大きさは、円盤
カッタ２の半径に立上り管の厚みｔ（図２参照）を加え
た大きさよりも大きく設定されており、当て円板５を確
実に立上り管３の開口端面に当接させながら、円盤カッ
タ２にて立上り管３を切断することができる。The radius of the contact disk 5 is set to be larger than the radius of the disk cutter 2 plus the thickness t (see FIG. 2) of the rising pipe, so that the contact disk 5 can be securely attached. Further, the rising pipe 3 can be cut by the disc cutter 2 while being brought into contact with the opening end surface of the rising pipe 3.
【００１９】次に、本工具にて、立上り管３を切断する
方法を、図１〜図３において、説明する。まず、（図２
に示すように、）床面Ｇから所定深さＤの切断位置Ｚに
て、立上り管３を切断する場合、止めねじ６を緩めて、
当て円板５を軸棒部１の軸心Ｌ方向に移動させて、当て
円板５の一面５ａ（環状膨出部17）から円盤カッタ２ま
での長さを、立上り管３の開口端面から切断位置Ｚまで
の所定長さＨに設定して、止めねじ６を締め付けて、当
て円板５を軸棒部１に止着する。なお、当て円板５を軸
棒部１に螺合させて設定を行うと、容易、迅速、正確に
設定できる。Next, a method of cutting the rising pipe 3 with this tool will be described with reference to FIGS. First, (Fig. 2
When cutting the riser pipe 3 at the cutting position Z at a predetermined depth D from the floor surface G, loosen the set screw 6 and
By moving the contact disk 5 in the direction of the axis L of the shaft rod portion 1, the length from the one surface 5a (annular bulging portion 17) of the contact disk 5 to the disc cutter 2 is measured from the opening end surface of the rising pipe 3. The predetermined length H up to the cutting position Z is set, and the set screw 6 is tightened to fix the contact disk 5 to the shaft rod portion 1. If the contact disk 5 is screwed into the shaft portion 1 for setting, the setting can be made easily, quickly and accurately.
【００２０】そして、軸棒部１の軸心Ｌを、立上り管３
の軸心に平行にしたまま、円盤カッタ２を立上り管３の
内部に挿入していき、当て円板５の一面５ａが、立上り
管３の開口端面に当接したときに、円盤カッタ２（の刃
部11）を、立上り管３の内面に当接させる。The axis L of the shaft rod portion 1 is set to the rising pipe 3
The disc cutter 2 is inserted into the rising pipe 3 while being parallel to the axis of the disc, and when the one surface 5a of the contact disc 5 contacts the opening end face of the rising pipe 3, the disc cutter 2 ( The blade portion 11) of the above is brought into contact with the inner surface of the rising pipe 3.
【００２１】その後、駆動機４により、軸棒部１を矢印
Ａ方向に回転させ、円盤カッタ２にて、立上り管３の切
断を開始する。この際、立上り管３の開口端面に摺接し
ている当て円板５も、矢印Ａ方向に回転しているため、
軸棒部１は、図２の紙面の手前から奥方向───図１の
矢印Ｂ方向（矢印Ａと逆方向）───への並進運動をす
ることになる。After that, the shaft 4 is rotated in the direction of arrow A by the driving machine 4, and the disc cutter 2 starts cutting the rising pipe 3. At this time, since the contact disk 5 that is in sliding contact with the opening end surface of the rising pipe 3 is also rotating in the arrow A direction,
The shaft rod portion 1 makes a translational movement from the front side of the paper surface of FIG. 2 to the back direction--the direction of arrow B in FIG. 1 (the direction opposite to the arrow A)-.
【００２２】そして、駆動機４の本体を手で強く握っ
て、この本体に、軸棒部１の並進運動とは逆方向に力を
加えて、軸棒部１の並進運動に抵抗し、駆動機４（軸棒
部１）を、立上り管３の内周面にそって、少しずつ並進
移動させることにより、立上り管３をその内部から立上
り管３の軸心と直角方向に輪切り状に切断することがで
きる。Then, the main body of the drive unit 4 is firmly gripped with a hand, and a force is applied to the main body in a direction opposite to the translational movement of the shaft rod portion 1 to resist the translational movement of the shaft rod portion 1 and drive the body. The machine 4 (shaft rod portion 1) is gradually moved in translation along the inner peripheral surface of the rising pipe 3 to cut the rising pipe 3 from its inside in a direction perpendicular to the axis of the rising pipe 3 in a circular slice shape. can do.
【００２３】なお、当て円板５を立上り管３の開口端面
に当接させながら、円盤カッタ２にて立上り管３を切断
しているため、確実に切断位置Ｚにて切断することがで
き、立上り管３の切断面を水平とすることができる。Since the rising pipe 3 is cut by the disc cutter 2 while the contact disc 5 is brought into contact with the opening end surface of the rising pipe 3, it is possible to surely cut at the cutting position Z, The cut surface of the rising pipe 3 can be horizontal.
【００２４】次に、切断中の各部に作用する力を、図４
において、説明する。立上り管３の開口端面に当て円板
５を押圧すると、（反力として）上向きの押上力Ｐが当
て円板５に作用する。他方、当て円板５の一面５ａは、
立上り管３の開口端面に摺接することで、矢印Ａとは反
対方向の強い回転トルク（摩擦抵抗力）Ｍを受けて、該
当て円板５は、（螺旋溝７の方向が既述の通りであるた
め）下方向へ、矢印Ｔの如く、進もうとする。この矢印
Ｔ方向の力によって、上記の押上力Ｐが減少乃至相殺さ
れ、止めねじ６の先端６ａと、螺旋溝７の溝底部７ａと
の圧接（止着）部に作用する力が比較的小さくなる。こ
れによって、止めねじ６の先端６ａが、長期間にわたっ
て、溝底部７ａに圧接止着状態を維持し、不意に止めね
じ６が緩む問題を防止できる。Next, the force acting on each part during cutting is shown in FIG.
Will be explained. When the contact disk 5 is pressed against the open end surface of the rising pipe 3, an upward push-up force P (as a reaction force) acts on the contact disk 5. On the other hand, one surface 5a of the contact disk 5 is
By slidingly contacting the opening end surface of the rising pipe 3, it receives a strong rotational torque (friction resistance) M in the direction opposite to the arrow A, and the corresponding disk 5 (the direction of the spiral groove 7 is as described above). (Because this is the case), try to proceed downward as indicated by arrow T. The force in the direction of the arrow T reduces or cancels the above-mentioned push-up force P, and the force acting on the pressure contact (fixing) portion between the tip 6a of the set screw 6 and the groove bottom portion 7a of the spiral groove 7 is relatively small. Become. As a result, the tip 6a of the set screw 6 can be kept pressed against the groove bottom portion 7a for a long period of time to prevent the set screw 6 from unintentionally loosening.
【００２５】次に、上記切断状態における当て円板５と
立上り管３との摺接部分を、図５に示し、当て円板５
は、立上り管３の開口端面に、環状膨出部17のみで摺接
している。このように、摺接面積を小さくすることがで
き、発熱を低減できる。従って、発熱による、止めねじ
６の緩みや、円盤カッタ２の刃部11の破損───ダイヤ
モンドの炭素化───を、防止することができる。ま
た、摺接面積の低減により、軸棒部１の回転トルクの抵
抗を低減できると共に、当て円板５の回転ビビリを防止
できる。Next, FIG. 5 shows a sliding contact portion between the contact disk 5 and the rising pipe 3 in the above-mentioned cut state.
Is in sliding contact with the opening end surface of the rising pipe 3 only by the annular bulging portion 17. In this way, the sliding contact area can be reduced and heat generation can be reduced. Therefore, it is possible to prevent loosening of the set screw 6 and damage to the blade portion 11 of the disk cutter 2 due to heat generation--carbonization of diamond. Further, by reducing the sliding contact area, it is possible to reduce the resistance of the rotation torque of the shaft rod portion 1 and prevent the chattering of the contact disk 5.
【００２６】次に、図６に、当て円板５の他の実施の形
態を示し、当て円板５の一面５ａは、（図３に示す平坦
面19に代わって）大アールＲを有する凹曲面20を備えて
いる。従って、当て円板５の立上り管３への摺接部分
を、確実に環状膨出部17のみとすることができる。Next, FIG. 6 shows another embodiment of the contact disk 5, wherein one surface 5a of the contact disk 5 is concave (instead of the flat surface 19 shown in FIG. 3) having a large radius R. It has a curved surface 20. Therefore, the sliding contact portion of the contact disk 5 with the rising pipe 3 can surely be only the annular bulging portion 17.
【００２７】なお、本発明は上述の実施の形態に限定さ
れず、例えば、当て円板５の円筒状内周壁18に径方向の
ねじ孔を設けても良い。また、この円筒状内周壁18の軸
心孔23に、軸棒部１の螺旋溝７に螺合する螺旋突条を形
成しても良く、このときは、止めねじ６は、軸棒部１の
螺旋溝７の溝底部７ａに限らず、突条部に圧接して止着
させても良い。このように、本発明の要旨を逸脱しない
範囲で設計変更可能である。The present invention is not limited to the above-mentioned embodiment, and for example, the cylindrical inner peripheral wall 18 of the contact disk 5 may be provided with a radial screw hole. Further, a spiral ridge that is screwed into the spiral groove 7 of the shaft rod portion 1 may be formed in the shaft center hole 23 of the cylindrical inner peripheral wall 18, and in this case, the set screw 6 is fixed to the shaft rod portion 1. Not only the groove bottom portion 7a of the spiral groove 7 but also the protrusion portion may be pressed and fixed. Thus, the design can be changed without departing from the scope of the present invention.
【００２８】[0028]
【発明の効果】本発明は上述の如く構成されるので、次
に記載する効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００２９】（請求項１によれば）当て円板５の一面５
ａを立上り管３の開口端面に当接させながら、立上り管
３を切断するため、立上り管３を、所定の（深さ）位置
にて、簡単に水平に切断することができる。また、当て
円板５の軸棒部１の軸心Ｌ方向の移動が容易となり、当
て円板５と円盤カッタ２の距離の調整───立上り管３
の切断深さの調整───が簡単となる。さらに、当て円
板５を立上り管３に当接させていても、軸棒部１（螺旋
溝７）と止めねじ６のねじ作用により、止めねじ６が緩
むことがなく、当て円板５を軸棒部１に確実に止着で
き、立上り管３を確実に所定の位置にて切断することが
できる。One side 5 of the contact disk 5 (according to claim 1)
Since the rising pipe 3 is cut while a is brought into contact with the opening end surface of the rising pipe 3, the rising pipe 3 can be easily cut horizontally at a predetermined (depth) position. Further, the movement of the shaft rod portion 1 of the contact disk 5 in the direction of the axis L becomes easy, and the distance between the contact disk 5 and the disk cutter 2 is adjusted ---- rising tube 3
Adjustment of cutting depth of ─── becomes easy. Furthermore, even if the contact disk 5 is brought into contact with the rising pipe 3, the set screw 6 does not loosen due to the screw action of the shaft rod portion 1 (spiral groove 7) and the set screw 6, and the contact disk 5 is retained. It can be securely attached to the shaft rod portion 1, and the rising pipe 3 can be reliably cut at a predetermined position.
【００３０】（請求項２によれば）当て円板５の立上り
管３への摺接部分を、環状膨出部17のみとすることがで
きるため、摺接面積を小さくでき、発熱を低減できる。
従って、発熱による、止めねじ６の緩みや、円盤カッタ
２の刃部11の破損───ダイヤモンドの炭素化───
を、防止することができる。また、摺接面積の低減によ
り、軸棒部１の回転トルクの抵抗を低減できると共に、
当て円板５の回転ビビリを防止できる。(According to the second aspect) Since the sliding contact portion of the contact disk 5 with the rising pipe 3 can be only the annular bulging portion 17, the sliding contact area can be reduced and heat generation can be reduced. .
Therefore, loosening of the set screw 6 and damage of the blade portion 11 of the disk cutter 2 due to heat generation--carbonization of diamond--
Can be prevented. Further, by reducing the sliding contact area, it is possible to reduce the resistance of the rotating torque of the shaft portion 1, and
Rotational chatter of the contact disk 5 can be prevented.
【００３１】（請求項３によれば） 円盤カッタ２が、
軸棒部１の先端１ａ面に、軸棒部１の軸心Ｌ方向から、
ビス止めされているため、円盤カッタ２の下方の厚み寸
法を減少でき、円盤カッタ２の下方のデッドスペースを
無くし、立上り管３の内面に、不要な（コンクリートな
どの）付着物15があっても、付着物15付近の切断が可能
となる。また、円盤カッタ２の交換が容易となる。(According to claim 3) The disc cutter 2 is
On the tip 1a surface of the shaft rod portion 1 from the axial center L direction of the shaft rod portion 1,
Since it is screwed, the thickness dimension below the disk cutter 2 can be reduced, the dead space below the disk cutter 2 is eliminated, and unnecessary (concrete etc.) deposits 15 are present on the inner surface of the rising pipe 3. Also, it is possible to cut around the deposit 15. Further, the disc cutter 2 can be easily replaced.
【図１】本発明の実施の一形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】本発明の使用状態を示す一部断面側面図であ
る。FIG. 2 is a partial cross-sectional side view showing a usage state of the present invention.
【図３】要部断面側面図である。FIG. 3 is a cross-sectional side view of a main part.
【図４】要部作用説明図である。FIG. 4 is an explanatory view of the operation of main parts.
【図５】要部断面側面図である。FIG. 5 is a sectional side view of a main part.
【図６】他の当て円板の断面側面図である。FIG. 6 is a sectional side view of another contact disk.
１ 軸棒部 １ａ 先端 １ｂ 基端 ２ 円盤カッタ ３ 立上り管 ４ 駆動機 ５ 当て円板 ５ａ 一面 ６ 止めねじ ６ａ 先端 ７ 螺旋溝 ７ａ 溝底部 ８ ねじ孔 14 ビス 17 環状膨出部 Ｌ 軸心 1 shaft rod 1a tip 1b base end 2 disk cutter 3 rising pipe 4 drive 5 Reliable disk 5a One side 6 set screw 6a tip 7 spiral groove 7a groove bottom 8 screw holes 14 screws 17 Annular bulge L axis center
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭59−173521（ＪＰ，Ｕ) 実開 平３−130323（ＪＰ，Ｕ) 実用新案登録3039458（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B23D 21/14 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Showa Sho 59-173521 (JP, U) Showahei 3-130323 (JP, U) Utility model registration 3039458 (JP, U) (58) Fields investigated ( Int.Cl. 7 , DB name) B23D 21/14
Claims (3)
状に取り付けた軸棒部１を備え、該軸棒部１が、その基
端１ｂに連結される駆動機４により、軸心Ｌ廻りに回転
して、立上り管３を内部から切断する立上り管切断用先
端工具において、上記軸棒部１に外嵌された当て円板５
と、該当て円板５の外周面から内周面を貫設したねじ孔
８に螺合する止めねじ６と、を備え、上記軸棒部１に
は、平面視上記駆動機４による回転方向とは反対方向の
螺旋溝７が、該軸棒部１の基端１ｂ側から先端１ａ側に
設けられ、上記止めねじ６の先端６ａを上記当て円板５
の内周面から突出させて上記軸棒部１の螺旋溝７の溝底
部７ａに圧接させることで、上記当て円板５が上記軸棒
部１に止着し、上記当て円板５の円盤カッタ２側の一面
５ａを上記立上り管３の開口端面に当接させながら、該
立上り管３を切断することを特徴とする立上り管切断用
先端工具。1. A shaft rod portion 1 having a disk cutter 2 mounted concentrically with a shaft center L at a tip 1a, the shaft rod portion 1 being driven by a drive unit 4 connected to a base end 1b thereof, In the rising pipe cutting tip tool that rotates around L and cuts the rising pipe 3 from the inside, the contact disk 5 fitted onto the shaft rod portion 1 is used.
And a set screw 6 which is screwed into a screw hole 8 penetrating from the outer peripheral surface of the disc 5 to the inner peripheral surface thereof, and the shaft rod portion 1 has a rotation direction by the driving machine 4 in plan view. A spiral groove 7 in a direction opposite to that is provided from the base end 1b side to the tip 1a side of the shaft rod portion 1, and the tip 6a of the set screw 6 is attached to the contact disk 5
Of the contact disk 5 is fixed to the shaft rod portion 1 by being pressed against the groove bottom portion 7a of the spiral groove 7 of the shaft rod portion 1 and protruding from the inner peripheral surface of A rising pipe cutting tip tool which cuts the rising pipe 3 while abutting the one surface 5a on the cutter 2 side with the opening end surface of the rising pipe 3.
に沿って、環状膨出部17が設けられている請求項１記載
の立上り管切断用先端工具。2. The tip tool for cutting a rising pipe according to claim 1, wherein an annular bulge portion 17 is provided on one surface 5a of the contact disk 5 along the outer peripheral edge thereof.
に、軸棒部１の軸心Ｌ方向から、ビス14止めされている
請求項１又は２記載の立上り管切断用先端工具。3. The rising tool for cutting a rising pipe according to claim 1, wherein the disk cutter 2 is fixed to the surface of the tip 1a of the shaft rod portion 1 with a screw 14 from the axial center L direction of the shaft rod portion 1. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000383883A JP3418377B2 (en) | 2000-12-18 | 2000-12-18 | Tip tool for rising pipe cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000383883A JP3418377B2 (en) | 2000-12-18 | 2000-12-18 | Tip tool for rising pipe cutting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002187014A JP2002187014A (en) | 2002-07-02 |
| JP3418377B2 true JP3418377B2 (en) | 2003-06-23 |
Family
ID=18851454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000383883A Expired - Fee Related JP3418377B2 (en) | 2000-12-18 | 2000-12-18 | Tip tool for rising pipe cutting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3418377B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0517521D0 (en) * | 2005-08-27 | 2005-10-05 | Monument Tools Ltd | Pipe cutter |
| AU2009203210A1 (en) * | 2009-08-03 | 2011-02-17 | Frelk Industries Pty Ltd | Pipe cutting device |
| CN109108691A (en) * | 2018-09-30 | 2019-01-01 | 中国十七冶集团有限公司 | A kind of steel pipe cutting device for building |
| CN114289783B (en) * | 2021-12-31 | 2023-02-10 | 福建纳川管业科技有限责任公司 | High-precision pipe fitting cutting equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3039458U (en) | 1997-01-13 | 1997-07-22 | 正義 高橋 | Portable cutter for cutting pipes |
-
2000
- 2000-12-18 JP JP2000383883A patent/JP3418377B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3039458U (en) | 1997-01-13 | 1997-07-22 | 正義 高橋 | Portable cutter for cutting pipes |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002187014A (en) | 2002-07-02 |
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