JPH0638645Y2 - Portable electric cutting tool - Google Patents
Portable electric cutting toolInfo
- Publication number
- JPH0638645Y2 JPH0638645Y2 JP12074288U JP12074288U JPH0638645Y2 JP H0638645 Y2 JPH0638645 Y2 JP H0638645Y2 JP 12074288 U JP12074288 U JP 12074288U JP 12074288 U JP12074288 U JP 12074288U JP H0638645 Y2 JPH0638645 Y2 JP H0638645Y2
- Authority
- JP
- Japan
- Prior art keywords
- end bracket
- portable electric
- cutting tool
- electric cutting
- blade
- 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
Landscapes
- Sawing (AREA)
Description
【考案の詳細な説明】 〔考案の利用分野〕 本考案は切粉排出口を有する携帯用電動切断工具の回転
刃物の覆い構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Use of the Invention] The present invention relates to a structure for covering a rotary blade of a portable electric cutting tool having a chip discharge port.
〔考案の背景〕 集じん機構を備えた従来技術の携帯用電動切断工具１を
第３図から第７図を用いて説明する。[Background of the Invention] A conventional portable electric cutting tool 1 having a dust collecting mechanism will be described with reference to Figs. 3 to 7.
第３図から第５図において、携帯用電動切断工具１で
は、回転刃物９がエンドブラケット18と刃物覆い13で形
成された刃物収納室23に配置され、前記刃物収納室23の
下面に前記回転刃物９の一部を刃口14より突出させるよ
うに案内定盤15が取付けられている。前記エンドブラケ
ット18には、切粉排出口19が設けられ、前記エンドブラ
ケット18の刃物覆い13の一部で形成された切粉排出路24
と連通している。また、前記切粉排出口19にはダストボ
ックス16が連結されている。このような従来技術の携帯
用電動切断工具１で被削材20を切断すると、回転刃物９
により切断される被削材20の切粉は、第４図、第５図に
示す矢印Ｂ方向にその大部分が流れ、前記切粉排出路24
を通り、切粉排出口19によりダストボックス16内に入り
集じんされる。3 to 5, in the portable electric cutting tool 1, the rotary blade 9 is arranged in the blade storage chamber 23 formed by the end bracket 18 and the blade cover 13, and the rotary blade 9 is rotated on the lower surface of the blade storage chamber 23. A guide surface plate 15 is attached so that a part of the blade 9 projects from the blade opening 14. A chip discharge port 19 is provided in the end bracket 18, and a chip discharge path 24 formed by a part of the blade cover 13 of the end bracket 18 is provided.
Is in communication with. A dust box 16 is connected to the chip discharge port 19. When the work material 20 is cut by such a conventional portable electric cutting tool 1 as described above, the rotary blade 9
Most of the chips of the work material 20 to be cut by the flow in the direction of arrow B shown in FIGS.
Through the chip discharge port 19 to enter the dust box 16 and be collected.
このような従来技術において、次のような欠点があっ
た。The conventional technique has the following drawbacks.
前記エンドブラケット18と刃物覆い13と当接する各々の
合わせ面22の平面度を、加工精度（成形加工等を含む）
の理由から０にできない。このため、第６図に示す隙間
δ１、δ２が当接する合わせ面22の一部に生じ、切断
時、切粉の一部が該隙間δ１、δ２より流出するという
欠点があった。The flatness of each mating surface 22 that comes into contact with the end bracket 18 and the blade cover 13 is processed with precision (including molding).
Therefore, it cannot be set to 0. Therefore, the gap [delta] 1 shown in FIG. 6, resulting in a part of the mating surface 22 [delta] 2 is in contact, during cutting, some of the chips is the clearance [delta] 1, has a drawback that flowing out of the [delta] 2 .
上記欠点をなくすため、従来技術で第７図に示すよう
に、前記エンドブラケット18または前記刃物覆い13の合
わせ面22に、ゴム、スポンジ等の弾性体のシール材17を
貼付け、前記隙間δ１をふさいでいた。しかし、シール
材17の材料費、貼付作業の手間賃に伴う製品価格の上昇
を招いていた。In order to eliminate the above drawbacks, as shown in FIG. 7 in the prior art, an elastic seal material 17 such as rubber or sponge is attached to the mating surface 22 of the end bracket 18 or the blade cover 13, and the gap δ 1 Was blocked. However, the material cost of the sealing material 17 and the labor cost of the sticking work caused an increase in the product price.
本考案の目的は、上記した従来技術の欠点をなくし、従
来技術より安価な回転刃物覆い構造を提供することであ
る。An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide a rotary blade covering structure that is less expensive than the prior art.
本考案は、エンドブラケットと刃物覆いの合わせ面に、
互いに嵌合する凹凸部を設ければ、切粉が漏れなくなる
ことに着目し、エンドブラケット及び刃物覆いの形状を
工夫したものである。The present invention, on the mating surface of the end bracket and the blade cover,
The shape of the end bracket and the blade cover is devised, paying attention to the fact that the chips do not leak if the concavo-convex portions that fit with each other are provided.
本考案の実施例を第１図、第２図に示す。図において、
携帯用電動切断工具１の構造は、エンドブラケット18と
刃物覆い13の合わせ面22の切断形状を除き従来技術と同
様である。An embodiment of the present invention is shown in FIGS. In the figure,
The structure of the portable electric cutting tool 1 is the same as that of the prior art except for the cutting shapes of the end bracket 18 and the mating surface 22 of the blade cover 13.
第１図、第２図において、エンドブラケット18の合わせ
面22には凹部26を、刃物覆い13には凸部25を設け、該凹
部26と凸部25は互いに嵌合するようにした。In FIGS. 1 and 2, the mating surface 22 of the end bracket 18 is provided with a concave portion 26, and the blade cover 13 is provided with a convex portion 25 so that the concave portion 26 and the convex portion 25 are fitted to each other.
このような本考案実施例の携帯用電動切断工具１を用い
て被削材20を切断すると、切粉は矢印Ｂ方向に流れ、従
来技術のように前記エンドブラケット18と刃物覆い13と
の隙間から、流出することはない。これは、前記エンド
ブラケット18と刃物覆い13との合わせ面22に互いに嵌合
する凹部26、凸部25を設けたので、従来技術と比較し、
合わせ隙間における切粉の流出抵抗が増大したからであ
る。When the work piece 20 is cut by using the portable electric cutting tool 1 of the embodiment of the present invention, chips flow in the direction of arrow B, and the gap between the end bracket 18 and the blade cover 13 as in the prior art. There is no spill. This is because the mating surface 22 between the end bracket 18 and the blade cover 13 is provided with a recess 26 and a projection 25 that are fitted to each other.
This is because the outflow resistance of the chips in the joining gap has increased.
以上のことから、本考案により、従来技術のようにエン
ドブラケット18と刃物覆い13との合わせ部隙間から、切
粉が流出するようなことなくなる。また流出を防ぐため
のシール材17を貼付ける必要もなくなり、製品価格の上
昇を防ぐことができる。From the above, according to the present invention, chips do not flow out from the gap between the end bracket 18 and the blade cover 13 as in the prior art. Further, it is not necessary to attach the sealing material 17 for preventing the outflow, and the increase in the product price can be prevented.
実施例では、第１図に示すごとく、凹部26をエンドブラ
ケット18に、凸部25を刃物覆い13に設けたが、逆にして
も同様の効果が得られる。In the embodiment, as shown in FIG. 1, the concave portion 26 is provided in the end bracket 18 and the convex portion 25 is provided in the blade covering 13, but the same effect can be obtained by reversing.
また、第１図では、凹部26と凸部25との嵌合を一重とし
たが、凹部26、凸部25を２個以上設け、２重以上として
も同様の効果が得られる。Further, in FIG. 1, the fitting between the concave portion 26 and the convex portion 25 is single, but the same effect can be obtained even if two or more concave portions 26 and convex portions 25 are provided.
本考案によれば、エンドブラケットと刃物覆いとの合わ
せ面に、互いに嵌合する凹部及び凸部を設け、合わせ部
隙間からの切粉の流出抵抗を増大させたので、合わせ部
隙間からの切粉の流出を防ぐことができる。According to the present invention, the mating surfaces of the end bracket and the blade cover are provided with recesses and projections that fit with each other to increase the flow resistance of chips from the clearance of the mating portion. The outflow of powder can be prevented.
第１図は本考案実施例の携帯用電動切断工具部分拡大断
面図、第２図は本考案実施例の部分拡大正面図、第３図
は従来技術の携帯用電動切断工具の平面図、第４図は従
来技術の正面図、第５図は従来技術の側面図、第６図、
第７図は従来技術の部分拡大断面図である。 図において、１は携帯用電動切断工具、９は回転刃物、
13は刃物覆い、18はエンドブラケット、19は切粉排出
口、22は合わせ面、23は刃物収納室、24は切粉排出路、
25は凸部、26は凹部である。1 is a partially enlarged sectional view of a portable electric cutting tool according to an embodiment of the present invention, FIG. 2 is a partially enlarged front view of an embodiment of the present invention, and FIG. 3 is a plan view of a conventional portable electric cutting tool according to the present invention. 4 is a front view of the prior art, FIG. 5 is a side view of the prior art, FIG.
FIG. 7 is a partially enlarged sectional view of the prior art. In the figure, 1 is a portable electric cutting tool, 9 is a rotary blade,
13 is a blade cover, 18 is an end bracket, 19 is a chip discharge port, 22 is a mating surface, 23 is a blade storage chamber, 24 is a chip discharge path,
Reference numeral 25 is a convex portion and 26 is a concave portion.
Claims (1)
ように覆い、切粉排出口を備えたエンドブラケット、該
エンドブラケットの前記開放側と嵌合するように配置さ
れ、切粉排出路及び前記回転刃物を収納する刃物収納室
を前記エンドブラケットと共に形成する刃物覆いを備え
た携帯用電動切断工具において、前記エンドブラケット
を刃物覆いの当接する合わせ面に、互いに嵌合する凸部
及び凹部を設けたことを特徴とする携帯用電動切断工
具。1. A rotary blade, an end bracket which covers one side surface of the rotary blade so as to be open, and is provided with a chip discharge port, and an end bracket which is arranged so as to fit with the open side of the end bracket, and discharges the chip. In a portable electric cutting tool provided with a tool cover that forms a tool storage chamber for storing a path and the rotary tool together with the end bracket, in the mating surface of the tool cover that abuts the end bracket, a protrusion that fits with each other, and A portable electric cutting tool having a recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12074288U JPH0638645Y2 (en) | 1988-09-14 | 1988-09-14 | Portable electric cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12074288U JPH0638645Y2 (en) | 1988-09-14 | 1988-09-14 | Portable electric cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241902U JPH0241902U (en) | 1990-03-22 |
| JPH0638645Y2 true JPH0638645Y2 (en) | 1994-10-12 |
Family
ID=31367123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12074288U Expired - Lifetime JPH0638645Y2 (en) | 1988-09-14 | 1988-09-14 | Portable electric cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638645Y2 (en) |
-
1988
- 1988-09-14 JP JP12074288U patent/JPH0638645Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241902U (en) | 1990-03-22 |
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