JP2001001303A - Portable circular saw - Google Patents
Portable circular sawInfo
- Publication number
- JP2001001303A JP2001001303A JP11172083A JP17208399A JP2001001303A JP 2001001303 A JP2001001303 A JP 2001001303A JP 11172083 A JP11172083 A JP 11172083A JP 17208399 A JP17208399 A JP 17208399A JP 2001001303 A JP2001001303 A JP 2001001303A
- Authority
- JP
- Japan
- Prior art keywords
- saw
- cover
- saw blade
- wall
- 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.)
- Granted
Links
Landscapes
- Sawing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は切粉排出方法を工夫
した携帯用丸のこに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable circular saw with an improved chip discharging method.
【０００２】[0002]
【従来の技術】従来の携帯用丸のこの一例を図３〜図５
を用いて説明する。2. Description of the Related Art An example of a conventional portable round is shown in FIGS.
This will be described with reference to FIG.
【０００３】ソーカバー１内壁はのこ刃２及び安全カバ
ー３等の外周に対してある程度の空間を持つように形成
されている。また、本体の進行方向に対して後ろ側に
は、ベース７に取付けられたリンク４を収納するための
隙間が必要であり、ソーカバー１の進行方向後側はのこ
刃２外周に対する空間が大きく形成されており、進行方
向前側からの内壁と滑らかに連なった形状をしている。The inner wall of the saw cover 1 is formed so as to have a certain space with respect to the outer periphery of the saw blade 2 and the safety cover 3. Further, a gap for accommodating the link 4 attached to the base 7 is required on the rear side with respect to the traveling direction of the main body, and the rear side in the traveling direction of the saw cover 1 has a large space with respect to the outer periphery of the saw blade 2. It has a shape smoothly connected to the inner wall from the front side in the traveling direction.
【０００４】このような構成をした携帯用丸のこは、切
断作業時に発生する切粉がソーカバー１内壁に沿って本
体後方下部に排出されるようになる。In the portable circular saw having such a configuration, chips generated during the cutting operation are discharged to the lower rear portion of the main body along the inner wall of the saw cover 1.
【０００５】切粉が本体後方下部に排出されるようにな
ると、排出された切粉が被切断材上面に当たって跳ね返
され、作業者の近辺に舞ってしまい作業性の低下を招い
てしまう。When the chips are discharged to the lower rear portion of the main body, the discharged chips hit the upper surface of the material to be cut and are bounced off, and fall to the vicinity of the worker, resulting in a decrease in workability.
【０００６】このため、従来の携帯用丸のこは図４に示
すようにソーカバー１ののこ刃外周側内壁のほぼのこ刃
２中心位置上にのこ刃２側に突出する凸部６を設け、切
粉が凸部６に当たるようにして本体後方下部に排出され
ることを抑制するようにしていた。更には、図５に示す
ようにモータ５の冷却風を利用して切粉をのこ刃２の側
面方向に排出する構成等があった。For this reason, as shown in FIG. 4, a conventional portable circular saw has a protruding portion 6 projecting toward the saw blade 2 at a position substantially at the center of the saw blade 2 on the outer peripheral side inner wall of the saw cover 1. To prevent the chips from hitting the convex portion 6 and being discharged to the lower rear portion of the main body. Further, as shown in FIG. 5, there has been a configuration in which chips are discharged in the lateral direction of the saw blade 2 using the cooling air of the motor 5.
【０００７】[0007]
【発明が解決しようとする課題】上記したように従来の
携帯用丸のこは、切粉が本体後方下部に排出されること
を抑制するようにソーカバー１ののこ刃２外周方向側内
壁の一部にのこ刃２側に突出する凸部６を設けた構成を
していたが、ソーカバー１内壁に設けられた凸部６は進
行方向前側のソーカバー１内壁に対してほぼ直角に突出
するように形成されていたため、ソーカバー１内壁に沿
って流れた切粉が凸部６によって強引に止められること
になり、切粉がのこ刃２側面方向の広範囲に舞ってしま
うという欠点があった。As described above, the conventional portable circular saw is provided with a saw blade 2 of the saw cover 1 on the outer peripheral side of the saw cover 1 so as to prevent chips from being discharged to the lower rear portion of the main body. Although the projection 6 provided on the saw blade 2 side is provided in a part, the projection 6 provided on the inner wall of the saw cover 1 projects substantially perpendicularly to the inner wall of the saw cover 1 on the front side in the traveling direction. As a result, the chips flowing along the inner wall of the saw cover 1 are forcibly stopped by the projections 6, and there is a disadvantage that the chips fly over a wide area in the side direction of the saw blade 2. .
【０００８】これを抑制するために、進行方向前側のソ
ーカバー１内壁に対する角度が大きくなるように凸部６
を形成することが考えられるが、この場合には凸部６に
当たった切粉は本体後方下部付近に排出されるようにな
ってしまい作業性の低下を招いてしまう。In order to suppress this, the convex portion 6 is formed so that the angle with respect to the inner wall of the saw cover 1 on the front side in the traveling direction becomes large.
However, in this case, the swarf hitting the convex portion 6 is discharged to the vicinity of the lower rear portion of the main body, resulting in a decrease in workability.
【０００９】本発明の目的は、上記欠点を解消し、切粉
の排出をスムーズにし、作業性の低下を抑制することの
できる携帯用丸のこを提供することである。An object of the present invention is to provide a portable circular saw capable of solving the above-mentioned disadvantages, smoothly discharging chips, and suppressing a decrease in workability.
【００１０】[0010]
【課題を解決するための手段】上記目的は、ソーカバー
の一部にソーカバー内壁とのこ刃との隙間を小さくする
突出部を設け、突出部前方のソーカバーの内壁をのこ刃
の半径より小さい半径の曲面により構成することにより
達成される。The object of the present invention is to provide a part of a saw cover provided with a protrusion for reducing the gap between the inner wall of the saw cover and the saw blade, and to make the inner wall of the saw cover in front of the protrusion have a radius smaller than the radius of the saw blade. Achieved by configuring with a curved surface.
【００１１】[0011]
【発明の実施の形態】本発明携帯用丸のこの一実施形態
を図１、図２を用いて以下説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a portable round according to the present invention will be described below with reference to FIGS.
【００１２】図に示すように、ソーカバー１の一部には
ソーカバー１ののこ刃外周方向側の内壁とのこ刃２との
隙間を小さくするよう突出する突出部８が設けられてお
り、ソーカバー１は突出部８、すなわちのこ刃２のほぼ
中心位置を境に分割した形状をしている。突出部８前方
のソーカバー１の内壁は、のこ刃２の半径より小さい半
径の曲面により形成されており、突出部８後方のソーカ
バー１の内壁についてはのこ刃２の半径とほぼ同じ半径
の曲面により形成されている。As shown in the drawing, a projection 8 is provided on a part of the saw cover 1 so as to protrude so as to reduce the gap between the inner wall of the saw cover 1 on the outer peripheral side of the saw blade and the saw blade 2. Has a shape that is divided at the protrusion 8, that is, at the approximate center position of the saw blade 2. The inner wall of the saw cover 1 in front of the protruding portion 8 is formed by a curved surface having a radius smaller than the radius of the saw blade 2, and the inner wall of the saw cover 1 behind the protruding portion 8 has a radius substantially equal to the radius of the saw blade 2. It is formed by a curved surface.
【００１３】ソーカバー１の突出部８にはのこ刃２側に
突出する形状をした凸部６が設けられており、ソーカバ
ー１の進行方向前側内壁に沿って流れてきた切粉が凸部
６に当たるよう構成されている。The protruding portion 8 of the saw cover 1 is provided with a protruding portion 6 having a shape protruding toward the saw blade 2, and chips flowing along the front inner wall in the traveling direction of the saw cover 1 are provided with the protruding portion 6. It is configured to hit.
【００１４】上記したような構成の携帯用丸のこは、突
出部８前方のソーカバー１の内壁がのこ刃２の半径より
も小さい半径の曲面によって形成されているため、ソー
カバー１の内壁に対する凸部６の角度が大きくなるの
で、図２に示すように凸部６によって切粉はベース７側
に案内され排出されるようになる。このため、本体後方
下部付近に切粉が排出されることを抑制することができ
ると共に、凸部６に切粉が当たることによりのこ刃２側
面方向の広範囲に切粉が舞ってしまうことを抑制するこ
とができるようになる。In the portable circular saw having the above-described configuration, the inner wall of the saw cover 1 in front of the protrusion 8 is formed by a curved surface having a radius smaller than the radius of the saw blade 2. Since the angle of the convex portion 6 is increased, the chips are guided to the base 7 side and discharged by the convex portion 6 as shown in FIG. For this reason, it is possible to prevent the chips from being discharged to the vicinity of the lower rear portion of the main body, and to prevent the chips from flying over a wide area in the side direction of the saw blade 2 due to the chip hitting the convex portion 6. It can be suppressed.
【００１５】なお、上記実施形態ではソーカバー１の突
出部８に凸部６を設けた構成としたが、凸部６を設けな
い構成であっても良い。In the above embodiment, the protruding portion 6 is provided on the protruding portion 8 of the saw cover 1. However, the protruding portion 6 may not be provided.
【００１６】また、のこ刃２のほぼ中心軸上方に突出部
８を設けた構成としたが、突出部８が設けられる位置は
これに限定されるものではない。Although the protruding portion 8 is provided substantially above the center axis of the saw blade 2, the position where the protruding portion 8 is provided is not limited to this.
【００１７】更に、図５で示したようにモータ５の冷却
風を利用して切粉をのこ刃２の側面方向に案内する構成
としても良い。Further, as shown in FIG. 5, a configuration may be adopted in which chips are guided in the lateral direction of the saw blade 2 using the cooling air of the motor 5.
【００１８】[0018]
【発明の効果】本発明によれば、ソーカバーの一部にソ
ーカバー内壁とのこ刃との隙間を小さくする突出部を設
け、突出部前方のソーカバーの内壁をのこ刃の半径より
小さい半径の曲面により構成したことにより、切粉の排
出をスムーズにし、作業性の低下を抑制することのでき
る携帯用丸のこを提供することができるようになる。According to the present invention, a projection is provided on a part of the saw cover to reduce the gap between the inner wall of the saw cover and the saw blade, and the inner wall of the saw cover in front of the projection is formed by a curved surface having a radius smaller than the radius of the saw blade. With this configuration, it is possible to provide a portable circular saw that can smoothly discharge chips and suppress a decrease in workability.
【図１】本発明携帯用丸のこの一実施形態を示す正面
図。FIG. 1 is a front view showing an embodiment of a portable round according to the present invention.
【図２】図１の要部断面図。FIG. 2 is a sectional view of a main part of FIG.
【図３】従来の携帯用丸のこの一例を示す正面図。FIG. 3 is a front view showing an example of a conventional portable round.
【図４】図３の要部断面図。FIG. 4 is a sectional view of a main part of FIG. 3;
【図５】従来の携帯用丸のこの一例を示す側面断面図。FIG. 5 is a side sectional view showing an example of a conventional portable round.
１はソーカバー、２はのこ刃、３は安全カバー、４はリ
ンク、５はモータ、６は凸部、７はベース、８は突出部
である。1 is a saw cover, 2 is a saw blade, 3 is a safety cover, 4 is a link, 5 is a motor, 6 is a projection, 7 is a base, and 8 is a projection.
Claims (4)
により駆動されるのこ刃と、のこ刃を覆うソーカバー
と、ソーカバーに回動可能に取付られ、のこ刃の突出量
を決定するベースとを有する携帯用丸のこであって、 前記ソーカバーの一部にソーカバー内壁とのこ刃との隙
間を小さくする突出部を設け、突出部前方のソーカバー
の内壁をのこ刃の半径より小さい半径の曲面により構成
したことを特徴とする携帯用丸のこ。1. A housing for accommodating an electric motor, a saw blade driven by the electric motor, a saw cover for covering the saw blade, and a base rotatably mounted on the saw cover for determining a protruding amount of the saw blade. A portable circular saw having a saw cover provided with a protrusion on a part of the saw cover for reducing a gap between the saw cover inner wall and the saw blade, and a curved surface having a radius smaller than the radius of the saw blade on the inner wall of the saw cover in front of the protrusion. A portable circular saw characterized by comprising:
出する凸部を設けたことを特徴とする請求項１記載の携
帯用丸のこ。2. The portable circular saw according to claim 1, wherein a protrusion protruding toward the saw blade is provided on a protrusion of the saw cover.
中心軸上方に設けたことを特徴とする請求項１記載の携
帯用丸のこ。3. The portable circular saw according to claim 1, wherein the protruding portion of the saw cover is provided substantially above the central axis of the saw blade.
ァンにより発生する冷却風をソーカバーの突出部近傍に
流出させるようにしたことを特徴とする請求項１記載の
携帯用丸のこ。4. The portable circular saw according to claim 1, wherein a cooling fan is provided in the electric motor, and cooling air generated by the cooling fan is caused to flow out near a protruding portion of the saw cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17208399A JP3731852B2 (en) | 1999-06-18 | 1999-06-18 | Portable circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17208399A JP3731852B2 (en) | 1999-06-18 | 1999-06-18 | Portable circular saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001001303A true JP2001001303A (en) | 2001-01-09 |
| JP3731852B2 JP3731852B2 (en) | 2006-01-05 |
Family
ID=15935232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17208399A Expired - Fee Related JP3731852B2 (en) | 1999-06-18 | 1999-06-18 | Portable circular saw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3731852B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950077A (en) * | 2014-05-12 | 2014-07-30 | 马玉荣 | Carpenter saw blade scrap removing device |
| CN110369792A (en) * | 2019-07-12 | 2019-10-25 | 石钢京诚装备技术有限公司 | A kind of method that steel surface generates martensite in reduction sawing process |
-
1999
- 1999-06-18 JP JP17208399A patent/JP3731852B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950077A (en) * | 2014-05-12 | 2014-07-30 | 马玉荣 | Carpenter saw blade scrap removing device |
| CN110369792A (en) * | 2019-07-12 | 2019-10-25 | 石钢京诚装备技术有限公司 | A kind of method that steel surface generates martensite in reduction sawing process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3731852B2 (en) | 2006-01-05 |
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