JP2536989Y2 - Portable circular saw base - Google Patents
Portable circular saw baseInfo
- Publication number
- JP2536989Y2 JP2536989Y2 JP1990118206U JP11820690U JP2536989Y2 JP 2536989 Y2 JP2536989 Y2 JP 2536989Y2 JP 1990118206 U JP1990118206 U JP 1990118206U JP 11820690 U JP11820690 U JP 11820690U JP 2536989 Y2 JP2536989 Y2 JP 2536989Y2
- Authority
- JP
- Japan
- Prior art keywords
- saw blade
- base
- portable circular
- opening
- circular saw
- 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
【考案の詳細な説明】 〔考案の利用分野〕 本考案は携帯用丸のこ機のベースに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a base of a portable circular saw.
〔考案の背景〕 携帯用丸のこ機は、第２図に示したように一般的にモ
ータにより駆動される回転のこ刃１と、該のこ刃１を覆
う切粉排出口６を有する固定カバー３に、前記のこ刃１
への接触防止のため、前記のこ刃１を覆うセフティカバ
ー５と、固定カバー３をささえるベース４を有する構造
となっている。BACKGROUND OF THE INVENTION As shown in FIG. 2, a portable circular saw machine generally has a rotary saw blade 1 driven by a motor and a chip discharge port 6 covering the saw blade 1. The saw blade 1 is attached to the fixed cover 3.
The structure has a safety cover 5 that covers the saw blade 1 and a base 4 that supports the fixed cover 3 in order to prevent contact with the saw blade 1.
ベース４は、製品全体をささえる構造となっているた
め、変形、破損等すると安全かつ正確な作業をすること
ができない。Since the base 4 has a structure that supports the entire product, if the base 4 is deformed or damaged, safe and accurate work cannot be performed.
従って、第３図に示す様にベース４には、変形、破損
等を防止するため、補強リブ13で剛性、強度向上を図っ
ている。Accordingly, as shown in FIG. 3, the rigidity and strength of the base 4 are improved by the reinforcing ribs 13 in order to prevent deformation, breakage, and the like.
のこ刃１による切断によって発生した切粉は、第２
図、第４図に示すようにのこ刃１の回転により発生して
いる空気流８によって運ばれ、固定カバー３の内側を通
り、固定カバー３の後部に設けられた切粉排出口６より
斜め後方に排出される。The chips generated by cutting with the saw blade 1
As shown in FIGS. 4A and 4B, the air is generated by the rotation of the saw blade 1 and is carried by the air flow 8. It is discharged diagonally backward.
しかし、切粉はすべて切粉排出口６まで到達するわけ
でなく若干であるが開口部12内の切断ポイント10及び開
口部12の先端部に落下し停滞するものもある。このた
め、切断ポイント10が見えなくなり、正確な切断作業が
できなくなるという欠点があった。However, not all of the chips reach the chip discharge port 6, but some of the chips fall to the cutting point 10 in the opening 12 and the tip of the opening 12 and stagnate. For this reason, there is a drawback that the cutting point 10 cannot be seen and an accurate cutting operation cannot be performed.
又、のこ刃１により発生している空気の流れは、空気
流８だけでなく固定カバー３の前方へ向いている空気流
９も発生している。The air flow generated by the saw blade 1 includes not only the air flow 8 but also the air flow 9 facing the front of the fixed cover 3.
この空気流９は、第３図の断面Ｉ−Ｉ線断面を拡大し
た第４図に示すように、リブ13に当たり図示した様に上
方向に向きを変える。The air flow 9 hits the rib 13 and changes its direction upward as shown in FIG. 4, as shown in FIG.
このため、切断ポイント10付近及び開口部12の先端部
にたまった切粉の一部は上方向に向きを変えた、空気流
９によりまき上げられ、作業者の顔のあたりに浮遊する
ことになり、安全かつ正確な切断作業が容易にできなく
なるという欠点もあった。For this reason, a part of the swarf that has accumulated near the cutting point 10 and at the tip of the opening 12 is turned up by the air flow 9 and floats around the worker's face. As a result, there is a disadvantage that safe and accurate cutting work cannot be easily performed.
本考案の目的は、上記した従来技術の欠点を解消し、
携帯用丸のこ機の安全性及び操作性を向上することであ
る。The purpose of the present invention is to eliminate the above-mentioned disadvantages of the prior art,
An object of the present invention is to improve the safety and operability of a portable circular saw.
本考案は、のこ刃の回転による空気の流れに着目し、
この空気流によって切粉がスムーズに除去されるよう
に、ベース開口部の先端部の形状を工夫したものであ
る。The present invention focuses on the flow of air due to the rotation of the saw blade,
The shape of the tip of the base opening is devised so that chips are smoothly removed by this air flow.
本考案による一実施例を第１図に示す。本考案携帯用
丸のこは、第１図に示す斜面15を除いて従来技術と同様
である。FIG. 1 shows an embodiment of the present invention. The portable circular saw of the present invention is the same as the prior art except for a slope 15 shown in FIG.
第１図に示す如く開口部12の先端部に設けてあるリブ
13に斜面15を設けた。A rib provided at the tip of the opening 12 as shown in FIG.
13 is provided with a slope 15.
このため、のこ刃１の回転による空気の流れは、第１
図に示す様に空気流８、空気流９の２通りがあり、一方
の空気流９がリブ13に設けた斜面15によりスムーズに前
方向に流れることになる。Therefore, the flow of air due to the rotation of the saw blade 1 is the first
As shown in the figure, there are two types of air flow 8 and air flow 9, and one air flow 9 smoothly flows forward due to the slope 15 provided on the rib 13.
その結果、切断ポイント10付近に落下した切粉が開口
部付近に停滞したり、作業者の顔前に浮遊するのを防止
することが可能となる。As a result, it is possible to prevent the chips falling near the cutting point 10 from stagnating near the opening or floating in front of the worker's face.
本考案によれば、携帯用丸のこ機において、開口部先
端部補強リブに傾斜を設けたことにより、のこ刃により
発生する空気流を有効に活用でき、特に新たな部品を追
加することなしに、簡単な部品形状の工夫で切断ポイン
トの切粉を停滞させることなく、又、顔前へ浮遊させる
ことなくスムーズに排除することができ、携帯用丸のこ
機を安全かつ正確に操作できる。According to the present invention, in the portable circular saw machine, by providing the slope at the opening end reinforcing rib, the airflow generated by the saw blade can be effectively utilized, and especially, a new part is added. Without the need for stagnation of chips at the cutting point and simple removal without floating in front of the face with a simple part shape, the portable circular saw can be operated safely and accurately. it can.
第１図は本考案によるベースの一実施例を示す第３図の
Ｉ−Ｉ線断面図、第２図は携帯用丸のこ機の全体図、第
３図はベースの上面図、第４図は従来技術の第３図のＩ
−Ｉ線断面図である。 図において、１はのこ刃、２はハウジング、３は固定カ
バー、４はベース、５はセフティカバー、６は切粉排出
口、７はのこ刃回転方向、８は空気流、９は空気流、10
は切断ポイント、11は被切断機、12は開口部、13は補強
リブ、15は傾斜である。FIG. 1 is a sectional view taken along the line II of FIG. 3 showing an embodiment of the base according to the present invention, FIG. 2 is an overall view of a portable circular saw, FIG. The figure shows the I of FIG. 3 of the prior art.
FIG. 2 is a sectional view taken along line I. In the figure, 1 is a saw blade, 2 is a housing, 3 is a fixed cover, 4 is a base, 5 is a safety cover, 6 is a chip discharge port, 7 is a saw blade rotating direction, 8 is an air flow, and 9 is air. Flow, 10
Is a cutting point, 11 is a machine to be cut, 12 is an opening, 13 is a reinforcing rib, and 15 is a slope.
Claims (1)
ータを収納するハウジングと、回転のこ刃を覆う固定カ
バーと、切断時に回転のこ刃を案内するよう固定カバー
に取り付けられ、回転のこ刃が突出するよう開口部を有
し、上方に突出した複数のリブを設けたベースを有する
携帯用丸のこ機において、 前記ベースの開口部先端部に位置するリブの開口部に対
向する面を、上方が前方に傾いた斜面としたことを特徴
とする携帯用丸のこ機のベース。1. A rotary saw blade driven by a motor, a housing for accommodating the motor, a fixed cover covering the rotary saw blade, and a rotary cover mounted on the fixed cover to guide the rotary saw blade during cutting. A portable circular saw having a base provided with a plurality of ribs protruding upward and having an opening so that the saw blade protrudes, wherein the base is opposed to the opening of the rib located at the tip of the opening of the base. A base for a portable circular saw machine, characterized in that a surface to be formed is a slope whose upper part is inclined forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990118206U JP2536989Y2 (en) | 1990-11-09 | 1990-11-09 | Portable circular saw base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990118206U JP2536989Y2 (en) | 1990-11-09 | 1990-11-09 | Portable circular saw base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0476317U JPH0476317U (en) | 1992-07-03 |
| JP2536989Y2 true JP2536989Y2 (en) | 1997-05-28 |
Family
ID=31866109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990118206U Expired - Lifetime JP2536989Y2 (en) | 1990-11-09 | 1990-11-09 | Portable circular saw base |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536989Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928644Y2 (en) * | 1980-12-09 | 1984-08-18 | 株式会社トクヤマ | Chamber frame for electrodialysis tank |
| JP3029221U (en) * | 1995-12-27 | 1996-09-27 | 鉄哉 渕口 | Puppet doll |
-
1990
- 1990-11-09 JP JP1990118206U patent/JP2536989Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0476317U (en) | 1992-07-03 |
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