JPH0248175Y2 - - Google Patents
Info
- Publication number
- JPH0248175Y2 JPH0248175Y2 JP13635086U JP13635086U JPH0248175Y2 JP H0248175 Y2 JPH0248175 Y2 JP H0248175Y2 JP 13635086 U JP13635086 U JP 13635086U JP 13635086 U JP13635086 U JP 13635086U JP H0248175 Y2 JPH0248175 Y2 JP H0248175Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole saw
- tip
- elastic shaft
- holster
- chip
- 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
Links
- 238000005553 drilling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、被穿孔管の中心をズラして穿孔する
ことにより被穿孔管の側面に分岐口を形成するホ
ルソーにおけるチツプの保持装置に関するもので
ある。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a tip holding device for a hole saw that forms a branch port on the side surface of a perforated pipe by making a hole with the center of the perforated pipe shifted. It is.
［従来技術及びその欠点］
ガス導管或いは水道管などにおいて分岐管を取
り出す際に、分岐口をこれら管の側面に形成する
穿孔方法として特開昭57−86691が公知であるが、
従来このような穿孔方法においてはチツプを有効
に取り出す方法がないことから、チツプを管内に
残してしまうという心配があつた。[Prior Art and Its Disadvantages] Japanese Patent Application Laid-Open No. 86691/1984 is known as a method for forming branch ports on the side surfaces of gas pipes, water pipes, etc. when branch pipes are taken out.
Conventionally, in this perforation method, there was no way to effectively remove the chip, so there was a concern that the chip would be left inside the pipe.
［本考案の目的］
本考案は斯かる点に鑑みて提案されるもので、
被穿孔管に対して偏心して分岐口を穿孔する際に
発生するチツプを簡単かつ確実に保持して取り出
すことのできるホルソーにおけるチツプの保持装
置を提案するのが目的である。[Purpose of the present invention] The present invention is proposed in view of the above points.
It is an object of the present invention to propose a chip holding device for a hole saw that can easily and reliably hold and remove chips generated when drilling a branch port eccentrically with respect to a pipe to be drilled.
［本考案の構成及びその作用］ 本考案の構成は次のとおりである。[Structure of the present invention and its operation] The configuration of the present invention is as follows.
ホルソー内の中心に下向きの弾性軸を取り付け
ると共にこの弾性軸の先端であつてホルソーの刃
先よりやや内側に大径保持部を形成して成るホル
ソーにおけるチツプの保持装置。 A chip holding device for a hole saw, comprising a downwardly directed elastic shaft attached to the center of the hole saw, and a large diameter holding portion formed at the tip of the elastic shaft and slightly inside the cutting edge of the hole saw.
上記装置は被穿孔管内にホルソーが切り込んで
行くときにはチツプの外面に沿つて大径保持部が
傾斜してホルソーの切り込みの邪魔にならず、ホ
ルソーの切り込みが終るとチツプの下側に変位し
ながら廻り込んで位置し、ホルソーを引き上げる
と大径保持部とホルソーの内壁面間に弾性軸の弾
性作用でチツプを保持して被穿孔管外にチツプを
取り出すことができるものである。 In the above device, when the hole saw cuts into the pipe to be drilled, the large-diameter holding part slopes along the outer surface of the tip so that it does not get in the way of the hole saw's cutting, and when the hole saw finishes cutting, it moves to the underside of the tip. When the hole saw is pulled up, the tip is held by the elastic action of the elastic shaft between the large-diameter holding portion and the inner wall surface of the hole saw, and the tip can be taken out of the pipe to be drilled.
［実施例及びその作用］
第１図は本考案に係るホルソーのチツプの保持
装置を示し、１はホルソー、２はこのホルソー１
内の中心から下方に向けて取り付けられた弾性軸
にして、この弾性軸２は実施例の場合コイル状で
ある。[Embodiments and their effects] Fig. 1 shows a holding device for the tip of a holster according to the present invention, where 1 is a holster and 2 is a holster 1.
The elastic shaft 2 is attached downward from the center of the body, and in this embodiment, the elastic shaft 2 has a coil shape.
３は前記弾性軸２の先端に取り付けられた大径
保持部にして、線材をループ状に形成したもので
あるが、この大径保持部３は円板状であつてもよ
い。 Reference numeral 3 denotes a large-diameter holding portion attached to the tip of the elastic shaft 2, which is formed of a wire into a loop shape, but the large-diameter holding portion 3 may also be disk-shaped.
上記ホルソーにおけるチツプ保持装置について
その作用を説明すると、第２図は穿孔機４にホル
ソー１を取り付け、被穿孔管５に偏心して分岐口
６を穿孔した状態を示し、７は主軸、８はシヤツ
ター装置、９は分岐継手である。 To explain the function of the tip holding device in the above-mentioned hole saw, Fig. 2 shows the state in which the hole saw 1 is attached to the drilling machine 4 and the branch port 6 is drilled eccentrically in the pipe to be drilled 5, where 7 is the main shaft and 8 is the shutter. The device, 9, is a branch joint.
本考案チツプの保持装置はホルソー１が被穿孔
管５を切削しながら進行して行くと、大径保持部
３がチツプａの最大半径部に到るまではチツプの
曲面に沿つて傾斜を強め（第３図）、この最大半
径部を過ぎると傾斜が徐々に直つてチツプａの下
側に廻り込む。この結果、第４図に示すように穿
孔を終了してホルソー１を引き上げると、チツプ
ａはホルソー１内に保持され、被穿孔管５内或い
は分岐継手９内に残ることはない。 In the chip holding device of the present invention, as the hole saw 1 advances while cutting the pipe 5 to be drilled, the large diameter holding part 3 increases the inclination along the curved surface of the chip until it reaches the maximum radius of the chip a. (FIG. 3), after passing this maximum radius, the slope gradually straightens and goes under the tip a. As a result, when the hole saw 1 is pulled up after drilling is completed as shown in FIG. 4, the tip a is retained in the hole saw 1 and does not remain in the pipe 5 to be drilled or in the branch joint 9.
［本考案の効果］
本考案は以上のように弾性軸の先端に大径保持
部を形成し、チツプａをこの大径保持部とホルソ
ーの内壁間にてホルソー内に保持しながら引き上
げるようにしたので、被穿孔管に偏心して分岐口
を穿孔する場合においてもチツプの残存に基づく
障害の問題が解決される。[Effects of the present invention] As described above, the present invention forms a large-diameter holding portion at the tip of the elastic shaft, and pulls up the chip a while holding it inside the hole saw between the large-diameter holding portion and the inner wall of the hole saw. Therefore, even when drilling a branch port eccentrically in a pipe to be drilled, the problem of failure due to remaining chips can be solved.
特に本考案は弾性軸を利用してチツプの曲面に
沿つて逃げながら大径保持部が被穿孔管の下側に
廻り込んでチツプを保持するため、ホルソーの穿
孔の邪魔になることもなく、然もチツプの保持も
確実に行なえる効果がある。 In particular, the present invention utilizes an elastic axis to escape along the curved surface of the tip while the large-diameter holding part goes around the underside of the pipe to be drilled and holds the tip, so it does not get in the way of drilling with a hole saw. Moreover, it also has the effect of ensuring that the chip is retained.
第１図は本考案に係るホルソーの一部切欠斜視
図、第２図は穿孔機にホルソーを取り付けて穿孔
を行なつた状態の断面図、第３，４図は作用の説
明図である。
１……ホルソー、２……弾性軸、３……大径保
持部。
FIG. 1 is a partially cutaway perspective view of a hole saw according to the present invention, FIG. 2 is a cross-sectional view of the hole saw attached to a drilling machine to perform drilling, and FIGS. 3 and 4 are explanatory diagrams of the operation. 1...Hole saw, 2...Elastic shaft, 3...Large diameter holding part.
Claims (1)
けると共にこの弾性軸の先端であつてホルソー
の刃先よりやや内側に大径保持部を形成して成
るホルソーにおけるチツプの保持装置。 (2) コイル状に捲いて作られた弾性軸と、ループ
状に捲かれた大径保持部と、から成る実用新案
登録請求の範囲第１項に記載のホルソーにおけ
るチツプの保持装置。[Claims for Utility Model Registration] (1) A chip in a holster comprising a downwardly directed elastic shaft attached to the center of the holster and a large-diameter holding portion formed at the tip of the elastic shaft and slightly inside the cutting edge of the holster. holding device. (2) The tip holding device for a hole saw according to claim 1, which is comprised of an elastic shaft wound into a coil shape and a large-diameter holding portion wound into a loop shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13635086U JPH0248175Y2 (en) | 1986-09-05 | 1986-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13635086U JPH0248175Y2 (en) | 1986-09-05 | 1986-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6341412U JPS6341412U (en) | 1988-03-18 |
| JPH0248175Y2 true JPH0248175Y2 (en) | 1990-12-18 |
Family
ID=31039376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13635086U Expired JPH0248175Y2 (en) | 1986-09-05 | 1986-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0248175Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2524645Y2 (en) * | 1989-10-12 | 1997-02-05 | 大阪瓦斯株式会社 | Hole saw with pipe piercing piece holding function |
-
1986
- 1986-09-05 JP JP13635086U patent/JPH0248175Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6341412U (en) | 1988-03-18 |
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