JPS6325091Y2 - - Google Patents
Info
- Publication number
- JPS6325091Y2 JPS6325091Y2 JP1983156249U JP15624983U JPS6325091Y2 JP S6325091 Y2 JPS6325091 Y2 JP S6325091Y2 JP 1983156249 U JP1983156249 U JP 1983156249U JP 15624983 U JP15624983 U JP 15624983U JP S6325091 Y2 JPS6325091 Y2 JP S6325091Y2
- Authority
- JP
- Japan
- Prior art keywords
- tool
- cutting
- cutting tool
- cover
- washers
- 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
- 238000005520 cutting process Methods 0.000 claims description 48
- 239000000843 powder Substances 0.000 claims description 18
- 239000011888 foil Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【考案の詳細な説明】
〔考案の利用分野〕
本考案は、コンクリート、石こうボード等の切
断を行なう携帯用動力切断工具に関するものであ
る。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a portable power cutting tool for cutting concrete, gypsum board, etc.
携帯用エンジン切断工具、または電動切断工具
でコンクリート、石こうボード等を切断する際に
は、多量の切削粉が発生する。この切削粉は使用
者の周辺に飛散し、作業環境の悪化を招く。切削
粉の飛散を軽減するため、従来次のものが提案さ
れている。
When cutting concrete, gypsum board, etc. with a portable engine cutting tool or an electric cutting tool, a large amount of cutting powder is generated. This cutting powder scatters around the user, causing a deterioration of the working environment. In order to reduce the scattering of cutting powder, the following methods have been proposed in the past.
(1) 工具カバーの外周部に切削粉排口部を形成
し、この排出部から切削粉を方向性を与えて外
部に排出する。(1) A cutting powder discharge port is formed on the outer periphery of the tool cover, and the cutting powder is directionally discharged from this discharge port to the outside.
(2) 上記排出部に集じんバツグを取付け、排出口
から排出される切削粉を集じんバツグに収納す
る。(2) Attach a dust collection bag to the above discharge part and store the cutting powder discharged from the discharge port in the dust collection bag.
(3) 上記排出部にポンプを連結し、切削粉を吸引
する。(3) Connect a pump to the above discharge part to suck out the cutting dust.
上記従来のものにあつても、未だ完全に切削粉
の飛散を防止できないという難点があつた。 Even with the above-mentioned conventional method, there was a drawback that scattering of cutting powder could not be completely prevented.
本考案は、上記の点に鑑みなされたもので切削
粉をより効率よく切粉排出部に移動させ、もつ
て、より効率よく切削粉の排出を行なうことを目
的とする。
The present invention has been developed in view of the above points, and an object of the present invention is to more efficiently move the cutting powder to the cutting powder discharge section, and thereby discharge the cutting powder more efficiently.
本考案を、第１図〜第４図により電動切断工具
への実施例により説明する。１は電動機であり、
該電動機１は回転切断工具２の上部を覆つた工具
カバ６と連結固定されている。工具２は電動機１
によつて回転駆動されるスピンドル１２に、内外
２枚のホイルワツシヤ３，３、ワツシヤ４、並び
に固定ボルト５によつて着脱自在に固定されてい
る。ワツシヤ３，３の夫々の側面には、放射状に
複数個の羽根３ａが突設されている。７は工具カ
バ６の外周部に設けた切粉排出部である。切粉排
出部７はカバ６内に通じた排出路７ａ、入口７
ｂ、出口７ｃからなり、入口７ｂは回転切断工具
２の接線方向に向いている。８は工具カバ６の下
部に位置したベースで、ベース８と工具カバ６と
は、その先端部で回転可能に連結され、かつ両者
は後端部においてベース８に突設したリンク１
３、並びに図示しないボルトを介してチヨウナツ
ト９で着脱自在に連結されている。上記ベース８
は開口１４を有し、該開口１４から回転工具２の
下部が下方に突出している。上記工具カバ６に対
するベース８の回転固定位置を変更することで、
回転切断工具２のベース８から突出量を変え、回
転切断工具２の切断深さが設定される。第１図、
第２図の状態は、ベース８がワツシヤ３，３外周
部に接近しており、最大切断深さに近い状態に切
断深さが設定されている。最大切断深さは、ベー
ス８下面からの工具２の突出量で決り、同径の工
具２の場合、ワツシヤ３の外径が小さい程最大切
断深さは大きくとれる。
The present invention will be explained by way of an example applied to an electric cutting tool with reference to FIGS. 1 to 4. FIG. 1 is an electric motor,
The electric motor 1 is connected and fixed to a tool cover 6 that covers the top of the rotary cutting tool 2. Tool 2 is electric motor 1
It is removably fixed to a spindle 12 which is rotationally driven by a spindle 12 by means of two inner and outer foil washers 3, 3, a washer 4, and a fixing bolt 5. A plurality of blades 3a are provided radially projecting from each side of the washers 3,3. Reference numeral 7 denotes a chip discharge section provided on the outer periphery of the tool cover 6. The chip discharge section 7 has a discharge passage 7a leading into the cover 6 and an inlet 7.
b, and an outlet 7c, with the inlet 7b facing tangentially to the rotary cutting tool 2. Reference numeral 8 denotes a base located at the lower part of the tool cover 6. The base 8 and the tool cover 6 are rotatably connected at their tips, and both have a link 1 protruding from the base 8 at their rear ends.
3, and are removably connected with a bolt 9 via a bolt (not shown). Above base 8
has an opening 14 from which the lower part of the rotary tool 2 projects downward. By changing the rotationally fixed position of the base 8 with respect to the tool cover 6,
The cutting depth of the rotary cutting tool 2 is set by changing the amount of protrusion of the rotary cutting tool 2 from the base 8. Figure 1,
In the state shown in FIG. 2, the base 8 is close to the outer periphery of the washers 3, 3, and the cutting depth is set close to the maximum cutting depth. The maximum cutting depth is determined by the amount of protrusion of the tool 2 from the lower surface of the base 8, and when the tools 2 have the same diameter, the smaller the outer diameter of the washer 3, the larger the maximum cutting depth can be taken.
１０はコンクリート等の被加工材、１１は排出
部７から排出される切削粉を示す。 Reference numeral 10 indicates a workpiece such as concrete, and reference numeral 11 indicates cutting powder discharged from the discharge section 7.
本考案の要旨は、ホイルワツシヤ３，３の側面
に羽根３ａを突出することで、工具２の最大切断
深さを減ずることなく、切削粉の排出効率を高め
るようにしたことである。工具２による被加工材
１０の切断時、工具２が矢印Ａ方向に回転するこ
とで切削粉は上方に吹き上げられ、その大部分
（70〜80％）は排出部７から機体外部一方向（本
実施例では前方）に排出される。そして残りの一
部はカバ６内部に浮遊、並びに工具２の刃部に巻
き込まれて周方向に移動し、ベース８下部並びに
ベース８とカバ６とのスキ間から飛散する。工具
２の回転、すなわちワツシヤ３，３の回転によ
り、該ワツシヤ３，３は羽根３ａを備えているの
で工具２の外周方向（矢印Ｂ方向）に風が発生
し、この風の一部（第３図でαの範囲、第４図で
はβの範囲）が排出部７から排出される切削粉の
排出効率を高める。この場合、同範囲においてカ
バ６内に浮遊している切削粉も排出部７の入口７
ｂ方向に吹き飛ばされ、切削粉の排出効率を高め
るものである。 The gist of the present invention is that by protruding the blades 3a from the sides of the foil washers 3, 3, the efficiency of discharging cutting powder is increased without reducing the maximum cutting depth of the tool 2. When cutting the workpiece 10 with the tool 2, the tool 2 rotates in the direction of arrow A, blowing up the cutting powder upwards, and most of it (70 to 80%) flows from the discharge section 7 to the outside of the machine (in the main body). In this embodiment, the fuel is discharged to the front). The remaining part floats inside the cover 6, gets caught up in the blade of the tool 2, moves in the circumferential direction, and scatters from the lower part of the base 8 and the gap between the base 8 and the cover 6. Due to the rotation of the tool 2, that is, the rotation of the washers 3, 3, since the washers 3, 3 are equipped with blades 3a, wind is generated in the outer circumferential direction of the tool 2 (in the direction of arrow B), and a part of this wind (the The range α in FIG. 3 and the range β in FIG. 4 improve the discharge efficiency of the cutting powder discharged from the discharge section 7. In this case, the cutting powder floating in the cover 6 in the same area is also removed from the inlet 7 of the discharge section 7.
The cutting powder is blown away in the b direction, increasing the efficiency of cutting powder discharge.
本考案によれば、回転切断工具取付けワツシヤ
に羽根を設けたことにより、この羽根の回転で回
転工具の径方向外周側に風を発生させ、切粉排出
部からの切削粉の排出効率を高めることができ
る。そして切粉排出部に集じんバツグを取付けた
ものにあつてはその集じん効率を高め、排出部を
ポンプに接続したものにあつては吸じん効率を高
めることができる。
According to the present invention, by providing a blade on the rotary cutting tool mounting washer, the rotation of the blade generates wind on the radially outer circumferential side of the rotary tool, increasing the efficiency of discharging cutting chips from the chip discharge section. be able to. If a dust collection bag is attached to the chip discharge section, the dust collection efficiency can be increased, and if the discharge section is connected to a pump, the dust suction efficiency can be increased.
更に本考案の羽根は、ホイルワツシヤの側面に
形成するものであるから、該ワツシヤの外径寸法
を大きくすることがなく、従つて、回転切断工具
の最大切込み量を減ずることがない。 Furthermore, since the blades of the present invention are formed on the side surfaces of the foil washer, the outer diameter of the washer is not increased, and therefore the maximum depth of cut of the rotary cutting tool is not reduced.
第１図は本考案携帯用動力切断工具の実施例を
示す斜視図、第２図は同要部を切断して示した正
面図である。第３図、第４図は、本考案実施例に
おける切断作業時の縦断面図である。
１は原動機、２は回転切断工具、３はホイルワ
ツシヤ、３ａは羽根、５は固定ボルト、６は工具
カバ、７は切粉排出部、８はベース、１２はスピ
ンドルである。
FIG. 1 is a perspective view showing an embodiment of the portable power cutting tool of the present invention, and FIG. 2 is a front view showing the same main part cut away. 3 and 4 are longitudinal cross-sectional views during cutting operations in the embodiment of the present invention. 1 is a prime mover, 2 is a rotary cutting tool, 3 is a wheel washer, 3a is a blade, 5 is a fixing bolt, 6 is a tool cover, 7 is a chip discharger, 8 is a base, and 12 is a spindle.
Claims (1)
ドルと、内外２枚のホイルワツシヤと固定ボルト
等によつて上記スピンドルに固定した回転切断工
具と、上記回転切断工具の上部を覆つた工具カバ
と、上記工具カバの下部に位置すると共に上記回
転切断工具の下部が下方に突出したベースとを備
え、上記工具カバは、その外周部に切削粉排出部
を備えた携帯用動力切断工具において、上記内外
２枚のワツシヤのうち少くとも一方のワツシヤ側
面に、複数個の放射状羽根を突設したことを特徴
とする携帯用動力切断工具。 a prime mover, a spindle rotated by the prime mover, two inner and outer foil washers, a rotary cutting tool fixed to the spindle with a fixing bolt, etc., a tool cover covering the upper part of the rotary cutting tool; The portable power cutting tool includes a base located at a lower part of the tool cover and from which the lower part of the rotary cutting tool protrudes downward, and the tool cover is provided with a cutting powder discharge part on the outer periphery of the portable power cutting tool. A portable power cutting tool characterized by having a plurality of radial blades protruding from the side surface of at least one of the washers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15624983U JPS6066454U (en) | 1983-10-07 | 1983-10-07 | portable power cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15624983U JPS6066454U (en) | 1983-10-07 | 1983-10-07 | portable power cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6066454U JPS6066454U (en) | 1985-05-11 |
| JPS6325091Y2 true JPS6325091Y2 (en) | 1988-07-08 |
Family
ID=30344834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15624983U Granted JPS6066454U (en) | 1983-10-07 | 1983-10-07 | portable power cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066454U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831986B2 (en) * | 1980-05-22 | 1983-07-09 | 株式会社 日本プラントサ−ビスセンタ− | Lining method for pipe inner wall surface |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48111981U (en) * | 1972-03-25 | 1973-12-22 | ||
| JPS5831986U (en) * | 1981-08-24 | 1983-03-02 | 日立工機株式会社 | Dustproof structure for power tools |
-
1983
- 1983-10-07 JP JP15624983U patent/JPS6066454U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831986B2 (en) * | 1980-05-22 | 1983-07-09 | 株式会社 日本プラントサ−ビスセンタ− | Lining method for pipe inner wall surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6066454U (en) | 1985-05-11 |
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