JPH0780084B2 - Variable drill - Google Patents
Variable drillInfo
- Publication number
- JPH0780084B2 JPH0780084B2 JP32999089A JP32999089A JPH0780084B2 JP H0780084 B2 JPH0780084 B2 JP H0780084B2 JP 32999089 A JP32999089 A JP 32999089A JP 32999089 A JP32999089 A JP 32999089A JP H0780084 B2 JPH0780084 B2 JP H0780084B2
- Authority
- JP
- Japan
- Prior art keywords
- ring member
- bit
- jack bolt
- nuts
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） この発明は、電動工具等に装着して使用する可変ドリル
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) [0001] The present invention relates to a variable drill mounted on an electric tool or the like for use.
（従来の技術） 従来、穿孔は電動ドリルの錐チャックにドリルを装着し
て行っていた。(Prior Art) Conventionally, drilling was performed by mounting a drill on a conical chuck of an electric drill.
（発明が解決しようとする問題点） しかし、従来のドリルは高価であるばかりか、穿孔径の
サイズの種類に応じて、ドリルの取り揃えが必要であ
り、ドリルの胴が焼き付き易く、使用不能を来してい
た。(Problems to be solved by the invention) However, not only are the conventional drills expensive, but it is also necessary to prepare a set of drills according to the size of the drilling diameter. I was coming.
（問題点を解決するための手段） そこで、この考案は上記の欠点を除去するために、ジャ
ッキボルトの一方にはシャンクを、他方にはビット設
け、ジャッキボルトには２個以上のナットを螺合すると
共に、該ナット間に挟持されて滑動するリング部材を設
け、ビットには切削刃を有するウィング部材の一端を枢
支し、その他端付近と前記リング部材とを連杆で枢支連
結したことを特徴とする可変ドリルを提供しようとする
ものである。(Means for Solving the Problems) Therefore, in order to eliminate the above-mentioned drawbacks, the present invention provides a shank on one side of the jack bolt and a bit on the other side, and screws two or more nuts on the jack bolt. A ring member which is fitted and slid between the nuts is provided. One end of a wing member having a cutting blade is pivotally supported on the bit, and the other end and the ring member are pivotally connected by a connecting rod. An object of the present invention is to provide a variable drill characterized by the above.
（実施例） 以下、この発明の一実施例を図面にもとづいて説明する
と、ジャッキボルト（１）の一方にはシャンク（２）
を、他方の先端には刃先（３）を有するビット（４）を
設け、ジャッキボルト（１）の中間部にはナット（５）
（６）を螺合して設け、該ナット（５）（６）間に挟持
されて滑動するリング部材（７）を設け、ビット（４）
には切削刃（８）を有するウィング部材（９）の一端を
枢支し、その他端付近と前記リング部材（７）とを連杆
（10）で枢支連結したことを特徴とする可変ドリルであ
る。(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. One side of the jack bolt (1) has a shank (2).
A bit (4) having a cutting edge (3) at the other end, and a nut (5) at the middle of the jack bolt (1).
(6) is provided by screwing, and a ring member (7) which is sandwiched between the nuts (5) and (6) and slides is provided, and a bit (4) is provided.
A variable drill characterized in that one end of a wing member (9) having a cutting blade (8) is pivotally supported, and the vicinity of the other end is pivotally connected to the ring member (7) by a connecting rod (10). Is.
（作用） 上述のようにウィング部材（９）の一端をビット（４）
に枢支し、その他端付近を連杆（10）でスライドするリ
ング部材（７）に枢支連結することで、ジャッキボルト
（１）上のリング部材（７）の位置関係に応じて、ウィ
ング部材（９）を立て起こしたり、引き倒したりでき
る。それにより、ウィング部材（９）の他端とジャッキ
ボルト（１）との距離を長くしたり、短くしたりできる
ので、その結果、切削刃（８）が到達できる回転半径を
可変とすることができる。(Operation) As described above, one end of the wing member (9) is connected to the bit (4).
By pivotally connecting the ring member (7) on the jack bolt (1) to the wing, the wing is pivotally connected to the ring member (7) that slides at the other end with the connecting rod (10). The member (9) can be raised and pulled down. Thereby, the distance between the other end of the wing member (9) and the jack bolt (1) can be lengthened or shortened, and as a result, the turning radius that the cutting blade (8) can reach can be made variable. it can.
ナット（５）は、リング部材（７）を所定の位置で受け
止め、ナット（６）は、両ナット（５）（６）間でリン
グ部材（７）を強く締め付け挟持する役割がある。The nut (5) receives the ring member (7) at a predetermined position, and the nut (6) has a role to strongly clamp and sandwich the ring member (7) between both nuts (5) and (6).
この発明によると、穿孔径を幅広く調節できるので、多
種類の径を有するドリルを取り揃えるという無駄が解消
され、穿孔面に当接する部分は主にウィング部材に設け
た切削刃であり、摩擦熱による焼き付きを生じ易い胴部
を除去でき、切削刃から発生する熱をウィング部材を通
じてジャッキボルト側に発散し、効率的に穿孔できるド
リルを安価に提供できるという多大な効果を奏する。According to the present invention, since the drilling diameter can be widely adjusted, the waste of having to prepare drills having various kinds of diameters is eliminated, and the portion that abuts the drilling surface is mainly the cutting blade provided on the wing member, and it is It is possible to remove the body portion that is apt to cause seizure, dissipate the heat generated from the cutting blade to the jack bolt side through the wing member, and it is possible to provide a drill capable of efficiently drilling at a low cost.
第１図は平面図である。 １……ジャッキボルト、２……シャンク、３……刃先、
４……ビット、５……ナット、６……ナット、７……リ
ング部材、８……切削刃、９……ウィング部材、10……
連杆。FIG. 1 is a plan view. 1 ... Jack bolt, 2 ... Shank, 3 ... Blade edge,
4 ... Bit, 5 ... Nut, 6 ... Nut, 7 ... Ring member, 8 ... Cutting blade, 9 ... Wing member, 10 ...
Continuous rod.
Claims (1)
方にはビットを設け、ジャッキボルトには２個以上のナ
ットを螺合すると共に、該ナット間に挟持されて滑動す
るリング部材を設け、ビットには切削刃を有するウィン
グ部材の一端を枢支し、その他端付近と前記リング部材
とを連杆で枢支連結したことを特徴とする可変ドリル。1. A shank is provided on one side of the jack bolt, and a bit is provided on the other side. Two or more nuts are screwed onto the jack bolt, and a ring member is provided which is sandwiched between the nuts and slides. A variable drill characterized in that one end of a wing member having a cutting blade is pivotally supported on the bit, and the vicinity of the other end is pivotally connected to the ring member by a connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32999089A JPH0780084B2 (en) | 1989-12-19 | 1989-12-19 | Variable drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32999089A JPH0780084B2 (en) | 1989-12-19 | 1989-12-19 | Variable drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03190613A JPH03190613A (en) | 1991-08-20 |
| JPH0780084B2 true JPH0780084B2 (en) | 1995-08-30 |
Family
ID=18227540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32999089A Expired - Lifetime JPH0780084B2 (en) | 1989-12-19 | 1989-12-19 | Variable drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0780084B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166756B (en) * | 2010-12-22 | 2012-10-10 | 宁波大榭开发区综研化学有限公司 | Space-adjustable dual-blade cutting tool |
-
1989
- 1989-12-19 JP JP32999089A patent/JPH0780084B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03190613A (en) | 1991-08-20 |
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