JP2019118994A - Chamfer tool - Google Patents

Chamfer tool Download PDF

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JP2019118994A
JP2019118994A JP2018000003A JP2018000003A JP2019118994A JP 2019118994 A JP2019118994 A JP 2019118994A JP 2018000003 A JP2018000003 A JP 2018000003A JP 2018000003 A JP2018000003 A JP 2018000003A JP 2019118994 A JP2019118994 A JP 2019118994A
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cutting blade
operation handle
chamfer
chamfering
tool
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JP2018000003A
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JP7054044B2 (en
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昌宏 置田
Masahiro Okita
昌宏 置田
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Onda Mfg Co Ltd
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Onda Mfg Co Ltd
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Abstract

To provide a chamfer tool which can be formed compactly in an axial direction and enables chamfering work to be performed more stably.SOLUTION: A chamfer tool 1 includes: a cutting blade 2; a cylindrical chamfer part 3 which holds the cutting blade 2 and into which an end part of a pipe 101 is inserted; an operation handle 4 which is operated by a worker when the chamfer part 3 is rotated; and a shaft part 5 which couples the chamfer part 3 to the operation handle 4 and has an outer diameter smaller than the chamfer part 3 and the operation handle 4. The chamfer part 3 has a cutting blade housing part 11 for holding the cutting blade 2. In the cutting housing part 11, an operation handle 4 side end part protrudes from the chamfer part 3 to an outer peripheral surface of the shaft part 5.SELECTED DRAWING: Figure 1

Description

本発明は、パイプ端部の面取りを行うための面取り工具に関する。   The present invention relates to a chamfering tool for chamfering a pipe end.

特許文献１には、切刃を有しかつ被加工パイプの端部が挿入される筒状の部分と、筒状の部分を回転操作する際に手で握るための円板状の回転トルク付加握り部と、筒状の部分と回転トルク付加握り部とを連結する軸状の部分とを備えた面取り工具が開示されている。   In Patent Document 1, a cylindrical portion having a cutting blade and into which an end portion of a processed pipe is inserted, and a disc-like rotational torque addition for grasping the cylindrical portion by hand when rotating the cylindrical portion A chamfering tool is disclosed which comprises a grip portion and a shaft-like portion connecting a tubular portion and a rotational torque application grip portion.

特開２００２−２３９８２５号公報JP 2002-239825 A

このような面取り工具において、軸線方向に長尺の切刃を取り付けようとする場合、筒状の部分ひいては面取り具が軸線方向に長くなる問題があった。面取り工具が軸線方向に長くなると、回転トルク付加握り部による回転操作が不安定となる等、面取り作業に悪影響を与える危惧がある。
本発明の目的は、軸線方向にコンパクトにできしかも面取り作業をさらに安定して行い得る面取り工具を提供すること。 In such a chamfering tool, when it is going to attach a long cutting blade in the axial direction, there is a problem that the cylindrical part and hence the chamfering tool become long in the axial direction. If the chamfering tool is elongated in the axial direction, there is a concern that the chamfering operation may be adversely affected, for example, the rotation operation by the rotation torque application grip portion may become unstable.
An object of the present invention is to provide a chamfering tool which can be made compact in the axial direction and can perform the chamfering operation more stably.

上記目的を達成するために請求項１の発明の面取り工具は、切刃と、当該切刃を保持しかつパイプの端部が挿入される筒状の面取り部と、当該面取り部を回転させる際に作業者が操作する操作ハンドルと、前記面取り部と前記操作ハンドルとを連結する、当該面取り部及び当該操作ハンドルよりも外径が小さい軸部とを備えた面取り工具において、前記面取り部は前記切刃を保持するための切刃収容部を有し、当該切刃収容部において前記操作ハンドル側の端部は、前記面取り部から前記軸部の外周面に突出されている。   In order to achieve the above object, the beveling tool according to the invention of claim 1 comprises a cutting edge, a cylindrical beveling portion which holds the cutting edge and into which the end of the pipe is inserted, and when rotating the beveling portion A chamfering tool including an operation handle operated by a worker, and the chamfered portion connecting the chamfered portion and the operation handle, and the shaft portion having an outer diameter smaller than that of the operation handle; It has a cutting blade accommodation part for holding a cutting blade, and the end by the side of the control handle in the cutting blade accommodation part is projected on the peripheral face of the axial part from the chamfering part.

上記構成の請求項１の発明によれば、切刃収容部の一部が軸部の外周面まで突出されているため（換言すれば軸部の外周面の一部を切刃収容部の配置に利用しているため）、軸線方向に長尺の切刃であっても、面取り部の全体が長くなることひいては面取り工具が長くなることを防止できる。軸線方向にコンパクトな面取り工具は、操作ハンドルの回転操作ひいては面取り作業を安定して行い得る。また、切刃収容部において軸部の外周面に突出した部分を、操作ハンドルを回転操作する際に指を引っ掛ける部分として利用することができ、操作ハンドルの回転操作ひいては面取り作業をさらに安定して行い得る。   According to the invention of claim 1 of the above configuration, since a part of the cutting blade accommodating portion is projected to the outer peripheral surface of the shaft portion (in other words, a part of the outer peripheral surface of the shaft portion is arranged in the cutting blade accommodating portion Therefore, even if the cutting edge is long in the axial direction, it is possible to prevent the chamfer from becoming long as a whole, and hence the chamfering tool from becoming long. The axially compact chamfering tool can stably perform the rotating operation of the operating handle and thus the chamfering operation. In addition, the portion of the cutting blade storage portion that protrudes on the outer peripheral surface of the shaft portion can be used as a portion to hook a finger when rotating the operating handle, and the rotating operation of the operating handle and thus the chamfering operation can be made more stable. It can be done.

一実施形態の面取り工具の正面図。The front view of the chamfering tool of one Embodiment. 面取り工具の背面図。Rear view of chamfering tool. 面取り工具の平面図。The top view of a chamfering tool. 面取り工具の底面図。Bottom view of a beveling tool. 面取り工具の左側面図。Left side view of chamfering tool. 面取り工具の右側面図。Right side view of chamfering tool. パイプを挿入した状態での面取り工具の断面図。Sectional drawing of the chamfering tool in the state which inserted the pipe. 面取り工具の使用方法を説明するための図。The figure for demonstrating the usage method of a chamfering tool.

以下、本発明を具体化した一実施形態について図面を参照しつつ説明する。
図８に示すように、給水給湯配管に用いられる樹脂パイプ１０１は、継手（図示しない）に挿入・接続されるものであって、当該継手への挿入力軽減のために、樹脂パイプ１０１の端部外周縁を面取りすることがある。この樹脂パイプ１０１の端部外周縁の面取りに、本実施形態の面取り工具１が用いられる。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 8, the resin pipe 101 used for the water supply and hot water supply pipe is inserted and connected to a joint (not shown), and the end of the resin pipe 101 is reduced to reduce the insertion force to the joint. There is a case where the outer periphery of the part is chamfered. The chamfering tool 1 of the present embodiment is used for chamfering the outer peripheral edge of the end portion of the resin pipe 101.

図１及び図７に示すように、面取り工具１は、切刃２と、切刃２を保持する円筒状の面取り部３と、作業者が操作する際の手掛かりとなる円筒状の操作ハンドル４と、面取り部３と操作ハンドル４とを連結する円筒状の軸部５とを備えている。面取り部３と操作ハンドル４と軸部５は、同一の軸線Ｌ上に配置されているとともに、合成樹脂材料によって一体成形されている。図７に示すように、面取り工具１の軸線Ｌ位置には、肉抜き孔１３が形成されている。肉抜き孔１３は、面取り部３の内部から軸部５の内部を介して操作ハンドル４の内部に至り、操作ハンドル４の端面で開口されている。   As shown in FIG. 1 and FIG. 7, the chamfering tool 1 has a cutting blade 2, a cylindrical chamfering portion 3 for holding the cutting blade 2, and a cylindrical operation handle 4 serving as a key when the operator operates. And a cylindrical shaft 5 connecting the chamfer 3 and the operation handle 4. The chamfered portion 3, the operation handle 4, and the shaft portion 5 are disposed on the same axis L and integrally molded of a synthetic resin material. As shown in FIG. 7, a lightening hole 13 is formed at the position of the axis L of the chamfering tool 1. The lightening hole 13 extends from the inside of the chamfered portion 3 to the inside of the operation handle 4 through the inside of the shaft portion 5 and is opened at the end face of the operation handle 4.

図１〜図４及び図７に示すように、面取り部３は、樹脂パイプ１０１が挿入される円筒状の外筒６と、樹脂パイプ１０１に挿入される円柱状の案内柱７と、外筒６の基端と案内柱７の基端との間を連結する円環状の底板８とを、同一の軸線Ｌ上に備えている。図６及び図７に示すように、外筒６の内周面と案内柱７の外周面と底板８の端面とで囲まれることで、円環状の挿入空間９が軸線Ｌ方向に形成されている。案内柱７は、樹脂パイプ１０１への挿入を容易とするために、先端部７ａが挿入空間９から突出されているとともに、先端部７ａの外周縁がＲ面とされている。   As shown in FIGS. 1 to 4 and 7, the chamfered portion 3 includes a cylindrical outer cylinder 6 into which the resin pipe 101 is inserted, a cylindrical guide column 7 into which the resin pipe 101 is inserted, and an outer cylinder An annular bottom plate 8 is provided on the same axis L to connect between the proximal end of 6 and the proximal end of the guide column 7. As shown in FIGS. 6 and 7, the annular insertion space 9 is formed in the direction of the axis L by being surrounded by the inner peripheral surface of the outer cylinder 6, the outer peripheral surface of the guide post 7, and the end surface of the bottom plate 8. There is. In order to facilitate insertion of the guide pillar 7 into the resin pipe 101, the tip end portion 7a protrudes from the insertion space 9, and the outer peripheral edge of the tip end portion 7a is an R surface.

図１〜図５及び図７に示すように、操作ハンドル４の外周面には凹部４ａが形成されている。凹部４ａは、軸線Ｌ方向へと直線状に延びる長溝からなるとともに、複数が周方向に等間隔で配置されている。この複数の凹部４ａは、作業者が操作ハンドル４を回転操作する際の滑り止めとなる。   As shown in FIGS. 1 to 5 and FIG. 7, a recess 4 a is formed on the outer peripheral surface of the operation handle 4. The concave portions 4a are long grooves extending linearly in the direction of the axis L, and a plurality of the concave portions 4a are arranged at equal intervals in the circumferential direction. The plurality of recesses 4 a serve as a non-slip when the operator rotates the operation handle 4.

図１〜図４及び図７に示すように、軸部５は、面取り工具１の操作を行い易くするために、面取り部３と操作ハンドル４とを適度に離間させるためのものである。軸部５は、面取り工具１を構成する肉量の軽減や操作ハンドル４の握り易さ等を考慮し、外径が面取り部３の外径および操作ハンドル４の外径よりも小さくなっている。したがって、面取り部３と操作ハンドル４との間には、軸線Ｌを中心とした円環状の突出用空間５ａが軸線Ｌ方向に形成されている。   As shown in FIG. 1 to FIG. 4 and FIG. 7, the shaft portion 5 is for appropriately separating the chamfered portion 3 and the operation handle 4 in order to facilitate the operation of the chamfering tool 1. The outer diameter of the shaft portion 5 is smaller than the outer diameter of the chamfered portion 3 and the outer diameter of the operating handle 4 in consideration of the reduction of the thickness of the beveling tool 1 and the ease of gripping the operating handle 4. . Therefore, an annular projecting space 5 a centered on the axis L is formed in the direction of the axis L between the chamfer 3 and the operation handle 4.

図１及び図７に示すように、面取り部３において外筒６の外周面と、軸部５の外周面とに跨って、切刃収容部１１が形成されている。換言すれば、面取り部３に設けられた切刃収容部１１は、一部が面取り部３から軸部５の外周面に突出されており（以下、突出部分１１ａとする）、突出用空間５ａは突出部分１１ａによって環状が一部で離断されている。   As shown in FIGS. 1 and 7, the cutting blade accommodation portion 11 is formed across the outer peripheral surface of the outer cylinder 6 and the outer peripheral surface of the shaft portion 5 in the chamfered portion 3. In other words, a part of the cutting blade accommodation portion 11 provided in the chamfered portion 3 is projected from the chamfered portion 3 to the outer peripheral surface of the shaft portion 5 (hereinafter referred to as the projecting portion 11a). The ring is separated in part by the projecting portion 11a.

切刃収容部１１は、切刃２を収容・保持するための保持凹所１２を備えている。保持凹所１２は、正面視（図１の状態）にて軸線Ｌ方向へと直線状に延びるとともに、底面視（図７の状態）にて操作ハンドル４側ほど軸線Ｌに近づくように当該軸線Ｌ方向へと直線状に延びている。保持凹所１２の底面において面取り部３側の端部には、保持凹所１２の内空間と挿入空間９とを連通する刃物口１２ａが形成されている。保持凹所１２の底面において長手方向の中間部分には、ねじ穴１２ｂが形成されている。   The cutting blade housing portion 11 is provided with a holding recess 12 for housing and holding the cutting blade 2. The holding recess 12 linearly extends in the direction of the axis L in a front view (the state of FIG. 1), and the axis line L so as to approach the axis L toward the operation handle 4 in a bottom view (the state of FIG. 7). It extends linearly in the L direction. At the end of the bottom surface of the holding recess 12 on the side of the chamfered portion 3, there is formed a blade port 12 a communicating the inner space of the holding recess 12 and the insertion space 9. A screw hole 12 b is formed in the longitudinal middle portion of the bottom surface of the holding recess 12.

切刃２は、矩形板状をなすとともに、短手方向の一端縁に刃先２ａが付けられている。切刃２において長手方向の中間位置には、ねじ孔２ｂが形成されている。切刃２は、切刃収容部１１の保持凹所１２に収容されている。保持凹所１２に収容された切刃２は、保持凹所１２のねじ穴１２ｂにねじ孔２ｂが一致する。この一致したねじ孔２ｂ及びねじ穴１２ｂに挿入されたねじ１５によって、切刃２は保持凹所１２に固定されている。切刃収容部１１に収容・固定された切刃２は、刃先２ａの一部が、刃物口１２ａを介して挿入空間９に露出されている。なお、保持凹所１２の内面において刃物口１２ａの近傍には、切刃２の刃先２ａと対向するように、排出凹所１２ｃが形成されている。   The cutting blade 2 has a rectangular plate shape, and a cutting edge 2a is attached to one end edge in the short direction. A screw hole 2 b is formed at an intermediate position in the longitudinal direction of the cutting blade 2. The cutting blade 2 is accommodated in the holding recess 12 of the cutting blade accommodation portion 11. In the cutting blade 2 accommodated in the holding recess 12, the screw hole 2 b coincides with the screw hole 12 b of the holding recess 12. The cutting blade 2 is fixed to the holding recess 12 by means of the screw 15 inserted into the matched screw hole 2 b and the screw hole 12 b. In the cutting blade 2 accommodated and fixed in the cutting blade accommodation portion 11, a part of the cutting edge 2a is exposed to the insertion space 9 through the cutter port 12a. A discharge recess 12 c is formed near the cutting edge 12 a on the inner surface of the holding recess 12 so as to face the cutting edge 2 a of the cutting blade 2.

前述したように、保持凹所１２の底面は、操作ハンドル４に近づくにつれて軸線Ｌに近づくように、軸線Ｌに対して傾斜されている。したがって、切刃収容部１１に収容・保持された切刃２（刃先２ａ）も、操作ハンドル４に近づくにつれて軸線Ｌに近づくように、軸線Ｌに対して傾斜されている。この切刃２の傾斜に応じて、挿入空間９の底板８付近は、底板８側が小径となるテーパ状に形成されている。   As described above, the bottom surface of the holding recess 12 is inclined with respect to the axis L so as to approach the axis L as the operating handle 4 is approached. Therefore, the cutting blade 2 (the cutting edge 2 a) accommodated and held in the cutting blade accommodation portion 11 is also inclined with respect to the axis L so as to approach the axis L as the operation handle 4 is approached. In accordance with the inclination of the cutting edge 2, the bottom plate 8 and the vicinity of the insertion space 9 are formed in a tapered shape in which the bottom plate 8 side has a smaller diameter.

図７及び図８に示すように、本実施形態の面取り工具１を用いて樹脂パイプ１０１の面取りを行うには、面取り部３の挿入空間９に樹脂パイプ１０１を挿入して、樹脂パイプ１０１の先端を切刃２に当接させる。この状態で、操作ハンドル４を介して面取り工具１を回転させ、面取り工具１と樹脂パイプ１０１とを相対回転させると、樹脂パイプ１０１の先端に対して傾斜した切刃２が、当該先端の外周縁を削って面取りを行う。このとき発生する樹脂パイプ１０１の削り屑は、排出凹所１２ｃを介して外部へと排出される。   As shown in FIG. 7 and FIG. 8, in order to chamfer the resin pipe 101 using the chamfering tool 1 of the present embodiment, the resin pipe 101 is inserted into the insertion space 9 of the chamfered portion 3. The tip is brought into contact with the cutting blade 2. In this state, when the chamfering tool 1 is rotated through the operation handle 4 to rotate the chamfering tool 1 and the resin pipe 101 relative to each other, the cutting blade 2 inclined with respect to the tip of the resin pipe 101 is outside the tip Chamfer by trimming the periphery. The shavings of the resin pipe 101 generated at this time are discharged to the outside through the discharge recess 12 c.

そして、面取り工具１と樹脂パイプ１０１との相対回転を所定回転数行うことで、樹脂パイプ１０１が挿入空間９を軸線Ｌ方向へと進んでやがては底板８に当接し、よって樹脂パイプ１０１の先端は、挿入空間９の奥側のテーパ状に沿った形状で面取りが施されることになる。   Then, by performing relative rotation between the beveling tool 1 and the resin pipe 101 by a predetermined number of rotations, the resin pipe 101 travels in the insertion space 9 in the direction of the axis L and eventually abuts on the bottom plate 8, thereby the tip of the resin pipe 101 Is chamfered in a shape along the tapered shape on the back side of the insertion space 9.

以上詳述したように本実施形態の面取り工具１は、軸部５の外周面の一部を切刃収容部１１の配置に利用している。したがって、軸線Ｌ方向に長尺の切刃２であっても、面取り部３が軸線Ｌ方向に長くなることなく、よって面取り工具１をコンパクトにできる。軸線Ｌ方向にコンパクトな面取り工具１は、操作ハンドル４の回転操作ひいては面取り作業を安定して行い得る。   As described above in detail, the chamfering tool 1 according to the present embodiment uses a part of the outer peripheral surface of the shaft 5 for the placement of the cutting blade accommodation portion 11. Therefore, even if the cutting blade 2 is long in the direction of the axis L, the chamfering tool 3 can be made compact without the chamfer 3 being long in the direction of the axis L. The chamfering tool 1 which is compact in the direction of the axis L can stably perform the rotational operation of the operating handle 4 and thus the chamfering operation.

また、切刃収容部１１において軸部５の外周面への突出部分１１ａを、操作ハンドル４を回転操作する際に指を引っ掛ける部分として利用することができる。したがって、操作ハンドル４の回転操作ひいては面取り作業をさらに安定して行い得る。   Further, the projecting portion 11 a of the cutting blade accommodation portion 11 to the outer peripheral surface of the shaft portion 5 can be used as a portion to which a finger is hooked when rotating the operation handle 4. Therefore, the rotating operation of the operating handle 4 and hence the chamfering can be performed more stably.

＜変形例＞
なお、本発明は、例えば次の態様でも実施可能である。
○案内柱７を別体とすること。そして、異なる外径の案内柱７を準備して、異なる内径の樹脂パイプ１０１に対応可能とすること。 <Modification>
The present invention can also be implemented, for example, in the following manner.
○ Separate the guide post 7. Then, guide pillars 7 having different outer diameters are prepared to be compatible with resin pipes 101 having different inner diameters.

１…面取り工具、２…切刃、３…面取り部、４…操作ハンドル、５…軸部、１１…切刃収容部、１０１…パイプ。
DESCRIPTION OF SYMBOLS 1 ... Chamfering tool, 2 ... cutting blade, 3 ... chamfering part, 4 ... operation handle, 5 ... axial part, 11 ... cutting blade accommodating part, 101 ... pipe.

Claims (1)

切刃と、当該切刃を保持しかつパイプの端部が挿入される筒状の面取り部と、当該面取り部を回転させる際に作業者が操作する操作ハンドルと、前記面取り部と前記操作ハンドルとを連結する、当該面取り部及び当該操作ハンドルよりも外径が小さい軸部とを備えた面取り具において、
前記面取り部は前記切刃を保持するための切刃収容部を有し、当該切刃収容部において前記操作ハンドル側の端部は、前記面取り部から前記軸部の外周面に突出されている面取り工具。 A cutting edge, a cylindrical chamfered portion holding the cutting edge and into which the end of the pipe is inserted, an operation handle operated by an operator when rotating the chamfered portion, the chamfered portion and the operation handle A chamfer having a chamfered portion and a shaft portion having an outer diameter smaller than that of the operation handle;
The chamfered portion has a cutting blade storage portion for holding the cutting blade, and in the cutting blade storage portion, an end portion on the operation handle side is protruded from the chamfered portion to an outer peripheral surface of the shaft portion Beveling tool.
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JP7054044B2 JP7054044B2 (en) 2022-04-13

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807297A (en) * 1956-04-20 1957-09-24 Thomas M Lucas Tapered flange forming tool
DE1297320B (en) * 1962-07-18 1969-06-12 Smith Corp A O Device for cutting off a pipe at its end
JPS5233077U (en) * 1975-08-31 1977-03-08
JPS60142003U (en) * 1984-02-29 1985-09-20 三菱重工業株式会社 Tool holder for pipe end processing
JP2002239825A (en) * 2001-02-15 2002-08-28 Higashio Mech Co Ltd Chamfering tool
US20040226423A1 (en) * 2002-11-12 2004-11-18 Friedrich Oswald Pipe chamfer tool
DE202006007258U1 (en) * 2005-05-10 2006-07-13 Holler, Karl-Heinz Tool for installing pipes in a heating system or water supply line comprises a cutting body, wings with cutting edges, clearance zones axially penetrating the cutting body, a cylindrical sleeve and a drive pin
JP2007331055A (en) * 2006-06-14 2007-12-27 San-Ei Faucet Mfg Co Ltd Resin-pipe chamfering tool
JP3151877U (en) * 2009-04-27 2009-07-09 株式会社きんでん Insulation stripping tool
JP2010094797A (en) * 2008-10-20 2010-04-30 Taifurekkusu Kk Tool for internal diameter correction and internal angle edge chamfering of pipe end
JP2012130996A (en) * 2010-12-22 2012-07-12 Komy Co Ltd Chamfering tool
JP2013116515A (en) * 2011-12-01 2013-06-13 Aron Kasei Co Ltd Chamfering correction tool for pipe cut end
US20130291386A1 (en) * 2012-05-03 2013-11-07 Asahi/America, Inc. Plastic pipe preparation tool
JP2017220977A (en) * 2016-06-03 2017-12-14 株式会社永木精機 Coated wire peeling device and coated wire peeling method

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807297A (en) * 1956-04-20 1957-09-24 Thomas M Lucas Tapered flange forming tool
DE1297320B (en) * 1962-07-18 1969-06-12 Smith Corp A O Device for cutting off a pipe at its end
JPS5233077U (en) * 1975-08-31 1977-03-08
JPS60142003U (en) * 1984-02-29 1985-09-20 三菱重工業株式会社 Tool holder for pipe end processing
JP2002239825A (en) * 2001-02-15 2002-08-28 Higashio Mech Co Ltd Chamfering tool
US20040226423A1 (en) * 2002-11-12 2004-11-18 Friedrich Oswald Pipe chamfer tool
DE202006007258U1 (en) * 2005-05-10 2006-07-13 Holler, Karl-Heinz Tool for installing pipes in a heating system or water supply line comprises a cutting body, wings with cutting edges, clearance zones axially penetrating the cutting body, a cylindrical sleeve and a drive pin
JP2007331055A (en) * 2006-06-14 2007-12-27 San-Ei Faucet Mfg Co Ltd Resin-pipe chamfering tool
JP2010094797A (en) * 2008-10-20 2010-04-30 Taifurekkusu Kk Tool for internal diameter correction and internal angle edge chamfering of pipe end
JP3151877U (en) * 2009-04-27 2009-07-09 株式会社きんでん Insulation stripping tool
JP2012130996A (en) * 2010-12-22 2012-07-12 Komy Co Ltd Chamfering tool
JP2013116515A (en) * 2011-12-01 2013-06-13 Aron Kasei Co Ltd Chamfering correction tool for pipe cut end
US20130291386A1 (en) * 2012-05-03 2013-11-07 Asahi/America, Inc. Plastic pipe preparation tool
JP2017220977A (en) * 2016-06-03 2017-12-14 株式会社永木精機 Coated wire peeling device and coated wire peeling method

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