JPH0223374Y2 - - Google Patents
Info
- Publication number
- JPH0223374Y2 JPH0223374Y2 JP1984102724U JP10272484U JPH0223374Y2 JP H0223374 Y2 JPH0223374 Y2 JP H0223374Y2 JP 1984102724 U JP1984102724 U JP 1984102724U JP 10272484 U JP10272484 U JP 10272484U JP H0223374 Y2 JPH0223374 Y2 JP H0223374Y2
- Authority
- JP
- Japan
- Prior art keywords
- tool
- chips
- tool case
- case
- cutting machine
- 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
Landscapes
- Milling Processes (AREA)
- Sawing (AREA)
Description
【考案の詳細な説明】
本考案は、工具収納ケースを有する携帯用切断
機の切粉の噴出・飛散の抑制に関するものであ
る。[Detailed Description of the Invention] The present invention relates to suppressing the spouting and scattering of chips in a portable cutting machine having a tool storage case.
従来技術を第１図、第２図、第４図を用いて説
明する。第１図において、従来技術の携帯用切断
機２０は、工具ケース１、ハウジング１６、前記
工具ケース１とハウジング１６とで軸支されるモ
ートル１０、前記モートル１０の回転を伝達する
プーリー１１、ベルト１２、プーリー１３、スピ
ンドル１４、前記工具ケース１に収納され、スピ
ンドル１４に取付け使用する回転工具３、前記工
具ケース１の底面部１８に取付け、被削材１９を
切断するとき、基準面となるベース５からなつて
いる。上記構造をした従来技術の携帯用切断機２
０を用いて、被削材１９の切断作業を行うと次の
ようになる。第４図において、モートル１０の動
力により矢印Ｅ方向に回転する回転工具３によ
り、被削材１９を切断する。切断時発生する切粉
は、前記回転工具３の回転の接線方向、図中矢印
Ｆ方向に飛散する。Ｆ方向に飛散した切粉は、工
具ケース内壁２２のＣ点に角度θ2で衝突し、角度
θ′2で矢印Ｇ方向に飛散する。さらに、前記工具
ケース内壁２２のＤ点で衝突した切粉は、前記工
具ケース１内に設けられた切粉排出路２１に導び
かれ、第１図、矢印ｉ、ｊ、ｋに沿つて流れ、前
記工具ケース１内に設けられた切粉排出口７より
排出される。上記の従来技術の携帯用切断機２０
において、問題となるのは、第４図の点Ｄのとこ
ろで切粉が、第２図に示すごとく、工具ケース１
と工具カバー２との隙間δよりもれ、矢印Ｌ、
Ｍ、Ｎ方向に噴出・飛散するため、切断時加工線
がみにくくなつたり、作業者顔面方向に飛散する
ため安全に作業ができなくなることである。 The prior art will be explained using FIG. 1, FIG. 2, and FIG. 4. In FIG. 1, a conventional portable cutting machine 20 includes a tool case 1, a housing 16, a motor 10 that is pivotally supported by the tool case 1 and the housing 16, a pulley 11 that transmits the rotation of the motor 10, and a belt. 12, a pulley 13, a spindle 14, a rotary tool 3 which is housed in the tool case 1 and is attached to the spindle 14 for use, which is attached to the bottom part 18 of the tool case 1 and serves as a reference surface when cutting the workpiece 19; Starting from base 5. Conventional portable cutting machine 2 with the above structure
When the workpiece material 19 is cut using 0, the following results are obtained. In FIG. 4, a workpiece 19 is cut by a rotary tool 3 which is rotated in the direction of arrow E by the power of a motor 10. Chips generated during cutting scatter in the tangential direction of the rotation of the rotary tool 3, that is, in the direction of arrow F in the figure. The chips scattered in the direction F collide with point C on the inner wall 22 of the tool case at an angle θ 2 and are scattered in the direction of arrow G at an angle θ′ 2 . Furthermore, the chips that collided with the tool case inner wall 22 at point D are guided to the chip discharge path 21 provided in the tool case 1, and flow along arrows i, j, and k in FIG. , are discharged from a chip discharge port 7 provided in the tool case 1. The above prior art portable cutting machine 20
In this case, the problem is that the chips at point D in FIG.
Leakage from the gap δ between the tool cover 2 and the arrow L,
Since it ejects and scatters in the M and N directions, the machining line becomes difficult to see during cutting, and it scatters in the direction of the worker's face, making it impossible to work safely.
本考案の目的は、前記した従来技術の欠点をな
くし、切断作業の際、工具ケース１と工具カバー
２とのすき間からの切粉の噴出を抑えることによ
り、従来の携帯用切断機よりも、操作性及び安全
性の向上を計ることである。 The purpose of the present invention is to eliminate the drawbacks of the prior art described above, and to suppress the spouting of chips from the gap between the tool case 1 and the tool cover 2 during cutting work, thereby achieving a better performance than the conventional portable cutting machine. The goal is to improve operability and safety.
本考案は、工具ケース内の切り粉の飛散方向を
変えることにより、工具ケース内での切粉の飛散
距離を長くすれば、切粉の速度を減少させること
により、切粉がもれにくくなることに着目し、工
具ケース内壁の形状を工夫したものである。 This invention changes the scattering direction of chips inside the tool case to increase the scattering distance of chips inside the tool case, thereby reducing the speed of chips and making it difficult for chips to leak. With this in mind, we devised the shape of the inner wall of the tool case.
本考案の実施例を第１図、第２図、第３図、第
４図を用いて説明する。本考案実施例の構造は、
工具ケース内壁２２に設けた突起６を除いて従来
技術と同じである。本考案実施例では、被削材１
９の切断時、飛散する切粉は工具ケース１内で、
矢印Ｆ方向に進む。切粉は、工具ケース１に設け
られた突起６により、角度θ1で衝突後、矢印Ｐ方
向、角度θ′1で進み、前記工具ケース１内に設け
られた切粉排出路２１に導かれる。従来技術で
は、切粉が衝突する点Ｃ、Ｄのところで、第２図
に示す工具ケース１と工具カバー２との隙間δよ
り切粉がもれ、噴出飛散した。しかし本考案実施
例では、初回に衝突した切粉が、切粉排出路２１
に進むため、工具ケース１と工具カバー２との間
に対する風速が減少し、前記工具ケース１と工具
カバー２との隙間δより噴出・飛散するときの流
出抵抗が相対的に増し、もれにくくなつた。ま
た、Ｂ点での衝突後、Ｒ点まで切粉が飛散する距
離l1が、突起６により従来技術の第４図に示す点
Ｃから点Ｄに至るまでの距離l2より長くなつたた
め、Ｒ点での切粉の工具ケース内壁２２に対する
衝突エネルギーが減少するため、前記Ｄ点での隙
間δからのもれに比べ、Ｒ点でのもれは、少なく
なつた。上記より、本考案実施例では、突起６を
設けることにより、切粉のもれを少くしたので、
従来技術に比較し、操作性・安全性が向上する。 Embodiments of the present invention will be described with reference to FIGS. 1, 2, 3, and 4. The structure of the embodiment of the present invention is as follows:
It is the same as the prior art except for the protrusion 6 provided on the inner wall 22 of the tool case. In the embodiment of the present invention, the workpiece 1
When cutting 9, the scattered chips are inside the tool case 1.
Proceed in the direction of arrow F. After colliding with the protrusion 6 provided in the tool case 1 at an angle θ 1 , the chips advance in the direction of arrow P at an angle θ′ 1 and are guided to the chip discharge path 21 provided in the tool case 1 . . In the prior art, at points C and D where the chips collide, the chips leak from the gap δ between the tool case 1 and the tool cover 2 shown in FIG. 2, and are ejected and scattered. However, in the embodiment of the present invention, the chips that collided for the first time are removed from the chip discharge path 21.
As a result, the wind speed between the tool case 1 and the tool cover 2 decreases, and the outflow resistance when blowing out and scattering from the gap δ between the tool case 1 and the tool cover 2 increases relatively, making it difficult to leak. Summer. In addition, since the distance l 1 for the chips to scatter to point R after the collision at point B is longer than the distance l 2 from point C to point D shown in FIG. 4 of the prior art due to the protrusion 6, Since the impact energy of the chips against the inner wall 22 of the tool case at point R is reduced, the leakage at point R is less than the leakage from the gap δ at point D. From the above, in the embodiment of the present invention, the leakage of chips is reduced by providing the protrusion 6.
Compared to conventional technology, operability and safety are improved.
本考案の応用性について、第５図に示す。構造
は、第３図の突起を多段設けるものである。第５
図は、一例として２段の突起を設けてある。実際
の切断作業に於いては、切り粉は、ある角度幅
θwを有して工具ケース１内壁面に当たるわけで
あり、本考案応用例によれば、それらのθwの飛
散角度幅を有した切り粉を実施例と同様に案内す
ることができ、より良い効果が得られる。 The applicability of the present invention is shown in Fig. 5. The structure is such that the protrusions shown in FIG. 3 are provided in multiple stages. Fifth
In the figure, two stages of protrusions are provided as an example. In actual cutting work, the chips hit the inner wall surface of the tool case 1 with a certain angular width θw, and according to the application example of the present invention, the chips have a scattering angular width of θw. The powder can be guided in the same way as in the example, and better effects can be obtained.
本考案によれば、携帯用切断機の工具ケース１
内に突起６を設けることにより、切り粉の入射方
向（入射角度）と反射方向（反射角度）の改善が
でき、初回に衝突した切粉は、切粉排出路方向に
進むようになるので、工具ケース１と工具カバー
２との間隙δからの切り粉の粉出・飛散を抑制す
ることができる。これにより携帯用切断機の操作
性、安全性の向上がはかれる。 According to the present invention, the tool case 1 of the portable cutting machine
By providing the protrusion 6 inside, the incident direction (incident angle) and reflection direction (reflection angle) of the chips can be improved, and the chips that collided for the first time will proceed in the direction of the chip discharge path. It is possible to prevent chips from coming out and scattering from the gap δ between the tool case 1 and the tool cover 2. This improves the operability and safety of the portable cutting machine.
第１図は携帯用小型切断機の平面図、第２図は
工具ケース断面図、第３図は本考案実施例の正面
図、第４図は従来技術の正面図、第５図は本考案
実施例の応用例の正面図である。
図においては、１は工具ケース、２は工具カバ
ー、３は回転工具、５はベース、６は突起、７は
切粉排出口、１０はモートル、１１はプーリー、
１２はベルト、１３はプーリー、１４はスピンド
ル、１６はハウジング、１７は工具ケース開口
部、１８は底面部、１９は被削材、２０は携帯用
小型切断機、２１は切粉排出路、２２は工具ケー
ス内壁である。
Figure 1 is a plan view of a small portable cutting machine, Figure 2 is a sectional view of the tool case, Figure 3 is a front view of the embodiment of the present invention, Figure 4 is a front view of the conventional technology, and Figure 5 is the present invention. FIG. 3 is a front view of an application example of the embodiment. In the figure, 1 is a tool case, 2 is a tool cover, 3 is a rotary tool, 5 is a base, 6 is a protrusion, 7 is a chip discharge port, 10 is a motor, 11 is a pulley,
12 is a belt, 13 is a pulley, 14 is a spindle, 16 is a housing, 17 is a tool case opening, 18 is a bottom part, 19 is a workpiece, 20 is a portable small cutting machine, 21 is a chip discharge path, 22 is the inner wall of the tool case.
Claims (1)
工具を着脱可能に収納し、前記収納部の一方の側
面と底面とを開口した工具ケースと、前記工具ケ
ース側面開口部を覆う工具カバーと、前記工具ケ
ース底面に取付け、被削材切断時、基準面となる
ベースと、前記工具ケースに設けられた、被削材
切断時に生じる切粉を排出する切粉排出路から構
成される携帯用切断機において、前記回転工具の
周方向に対向し、前記工具ケース内壁に切粉を前
記切粉排出路へ進ませる突起部を設けたことを特
徴とする携帯用切断機の切粉抑制機構。 A rotary tool that is rotated by a power mechanism, a tool case that removably stores the rotary tool and has one side and a bottom of the storage section open, a tool cover that covers a side opening of the tool case, and the tool. A portable cutting machine consisting of a base that is attached to the bottom of the case and serves as a reference surface when cutting a workpiece, and a chip discharge passage provided in the tool case that discharges chips generated when cutting the workpiece. A chip suppression mechanism for a portable cutting machine, characterized in that a protrusion is provided on the inner wall of the tool case, facing in the circumferential direction of the rotary tool, and causing chips to advance to the chip discharge path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10272484U JPS6118808U (en) | 1984-07-06 | 1984-07-06 | Chip scattering suppression mechanism for portable cutting machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10272484U JPS6118808U (en) | 1984-07-06 | 1984-07-06 | Chip scattering suppression mechanism for portable cutting machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6118808U JPS6118808U (en) | 1986-02-03 |
| JPH0223374Y2 true JPH0223374Y2 (en) | 1990-06-26 |
Family
ID=30662121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10272484U Granted JPS6118808U (en) | 1984-07-06 | 1984-07-06 | Chip scattering suppression mechanism for portable cutting machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118808U (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505106U (en) * | 1973-05-14 | 1975-01-20 | ||
| JPS5929203U (en) * | 1982-08-20 | 1984-02-23 | 日立工機株式会社 | electric cutter gear cover |
-
1984
- 1984-07-06 JP JP10272484U patent/JPS6118808U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6118808U (en) | 1986-02-03 |
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