JP2912564B2 - Portable rotating tools - Google Patents
Portable rotating toolsInfo
- Publication number
- JP2912564B2 JP2912564B2 JP9642295A JP9642295A JP2912564B2 JP 2912564 B2 JP2912564 B2 JP 2912564B2 JP 9642295 A JP9642295 A JP 9642295A JP 9642295 A JP9642295 A JP 9642295A JP 2912564 B2 JP2912564 B2 JP 2912564B2
- Authority
- JP
- Japan
- Prior art keywords
- safety cover
- housing
- peripheral surface
- lower guard
- cutting
- 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 - Fee Related
Links
Landscapes
- Sawing (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、丸鋸刃を覆う安全カバ
ーの内側から切削屑を所定の向きに排出することができ
る携帯用回転工具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable rotary tool capable of discharging cutting chips in a predetermined direction from the inside of a safety cover covering a circular saw blade.
【0002】[0002]
【従来の技術】従来、丸鋸刃を覆う安全カバーの内側か
ら切削屑を所定の向きに排出しようとした携帯用回転工
具としては、実開平1−70505号、実開平5−35
203号、実開平4−83705号に記載されるような
ものがある。2. Description of the Related Art Conventionally, as a portable rotary tool for discharging cutting chips in a predetermined direction from the inside of a safety cover covering a circular saw blade, Japanese Utility Model Laid-Open No. 1-70505 and Japanese Utility Model Laid-Open No. 5-35 are known.
No. 203 and Japanese Utility Model Laid-Open No. 4-83705.
【0003】実開平1−70505号の携帯用回転工具
は、安全カバーの内周面にリブを多数設け、これらのリ
ブに切削屑を衝突させて安全カバー外へと向かわせよう
とするものである。[0003] The portable rotary tool disclosed in Japanese Utility Model Laid-Open No. 1-70505 is provided with a large number of ribs on an inner peripheral surface of a safety cover, and collides cutting ribs with these ribs so as to be directed out of the safety cover. is there.
【0004】実開平5−35203号の携帯用回転工具
は、安全カバーの内周面にその前部から中央部に掛けて
一条のリブを設け、該リブで切削屑を安全カバー外へと
案内しようとするものである。In the portable rotary tool disclosed in Japanese Utility Model Laid-Open No. 5-35203, a single rib is provided on the inner peripheral surface of the safety cover from the front part to the center part, and the rib guides cutting chips outside the safety cover. What you want to do.
【0005】実開平4−83705号の携帯用回転工具
は、安全カバーの後部に排出口を穿設し、安全カバーの
内周面に沿って流れて来た切削屑を該排出口から安全カ
バー外へと排出しようとするものである。In the portable rotary tool disclosed in Japanese Utility Model Application Laid-Open No. 4-83705, a discharge port is formed in the rear portion of the safety cover, and cutting chips flowing along the inner peripheral surface of the safety cover are discharged from the safety cover through the discharge port. It is trying to discharge to the outside.
【0006】[0006]
【発明が解決しようとする課題】しかし、従来の切削屑
排出構造は、実開平1−70505号のものにあって
は、一部の切削屑はリブに当たって安全カバーの側面か
ら外に出るが、安全カバーとロアガードとの間には比較
的大きな隙間があるので、他の切削屑がその隙間から安
全カバーの後方へと流れ作業者の方に排出されるという
不都合がある。However, in the conventional chip discharging structure disclosed in Japanese Utility Model Laid-Open No. 1-70505, a part of the cutting chips hits the ribs and exits from the side of the safety cover. Since there is a relatively large gap between the safety cover and the lower guard, there is an inconvenience that other debris flows from the gap to the rear of the safety cover and is discharged to the operator.
【0007】実開平5−35203号の携帯用回転工具
にあっては、切削屑を安全カバーの前部から中央部にか
けて排出することになるので、被加工材の切削当初より
墨線の上に切削屑が飛散し堆積し、切削位置、方向の確
認を困難にするという問題がある。In the portable rotary tool disclosed in Japanese Utility Model Application Laid-Open No. 5-35203, cutting chips are discharged from the front to the center of the safety cover. There is a problem that debris scatters and accumulates, making it difficult to confirm the cutting position and direction.
【0008】実開平4−83705号の携帯用回転工具
は、安全カバーの排出口から切削屑を排出することがで
きるが、安全カバーとロアガードとの間には比較的大き
な隙間が依然として介在するので一部の切削屑がその隙
間から安全カバーの後方へと流れ作業者の方に排出され
るという不都合がある。The portable rotary tool disclosed in Japanese Utility Model Laid-Open No. 4-83705 can discharge cutting chips from the discharge port of the safety cover, but a relatively large gap still exists between the safety cover and the lower guard. There is an inconvenience that some cuttings flow from the gap to the rear of the safety cover and are discharged toward the operator.
【0009】従って、本発明は、切削屑を安全カバー外
へ排出するに際し作業者の方に向かわないようにし、ま
た切削当初から加工箇所の上に切削屑が沢山堆積しない
ようにすることができる携帯用回転工具を提供すること
を目的とする。Therefore, the present invention can prevent the chips from being directed toward the worker when discharging the chips outside the safety cover, and can prevent a large amount of chips from accumulating on the processing portion from the beginning of cutting. An object is to provide a portable rotary tool.
【0010】[0010]
【課題を解決するための手段】本発明は、上記目的を達
成するため、丸鋸刃5を回転させる電動機が内蔵された
ハウジング1と、該ハウジング1に取り付けられた上記
丸鋸刃5の上部を覆うための安全カバー2と、被加工材
の切削に伴い上記安全カバー2内へと回動するように上
記ハウジング1に支承された上記丸鋸刃5の下部を覆う
ためのロアガード4と、上記ハウジング1又は上記安全
カバー2に取り付けられた被加工材に当てるためのベー
ス3とを具備した携帯用回転工具において、上記ロアガ
ード4の外周面4aと上記安全カバー2の内周面2aと
の間の隙間を遮蔽する外向き突起6が上記ロアガード4
の外周面4aの後部に設けられ、かつ該外向き突起6に
は、上記ハウジング側から反ハウジング側へ向かうに連
れベース3の方に傾斜した切削屑を反ハウジング側に案
内する案内面6aが形成された構成を採用し、また、上
記携帯用回転工具において、上記安全カバー2の後端方
向へ切削屑が流れるのを阻止するためのリブ7が上記安
全カバー2の内周面2aに設けられた構成を採用し、ま
た、上記携帯用回転工具において、上記ロアガード4の
内周面4bの後端に内向き突起8が設けられ、該内向き
突起8における切削屑の案内面8aが切削屑を反ハウジ
ング側に案内すべく形成された構成を採用している。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a housing 1 in which an electric motor for rotating a circular saw blade 5 is built, and an upper part of the circular saw blade 5 attached to the housing 1. A lower cover 4 for covering a lower portion of the circular saw blade 5 supported by the housing 1 so as to rotate into the safety cover 2 as the workpiece is cut. In a portable rotary tool provided with a base 3 for abutting on a workpiece attached to the housing 1 or the safety cover 2, an outer peripheral surface 4a of the lower guard 4 and an inner peripheral surface 2a of the safety cover 2 are formed. The outward projection 6 that blocks the gap between the lower guard 4
The outer projection 4 is provided at the rear of the outer peripheral surface 4a, and is connected to the outward projection 6 from the housing side to the opposite housing side.
And a guide surface 6a for guiding the cutting chips inclined toward the base 3 toward the opposite side of the housing is adopted. In the portable rotary tool, the cutting chips are formed toward the rear end of the safety cover 2. A rib 7 for preventing flow is provided on the inner peripheral surface 2a of the safety cover 2, and in the portable rotary tool, a rib 7 is provided on the rear end of the inner peripheral surface 4b of the lower guard 4. An orientation protrusion 8 is provided, and the guide surface 8a of the chip in the inward protrusion 8 is formed to guide the chip to the side opposite to the housing.
【0011】[0011]
【作用】この携帯用回転工具により被加工材を切削する
については、電動機が起動され、そのベース3が被加工
材に当てられ、丸鋸刃5の前部が被加工材の例えば墨線
で示された切削箇所に当てられる。切削の進行に伴いロ
アガード4の前部は被加工材に押されつつ安全カバー2
内へと回動する。また、切削により発生する切削屑は、
安全カバー2の内周面に沿って流れ、ロアガード4の外
周面の後部に位置する外向き突起6に当たる。外向き突
起6は、ロアガード4の外周面4aと安全カバー2の内
周面2aとの間の隙間を遮蔽しているので、切削屑は安
全カバー2後方の作業者側には流出しなくなる。外向き
突起6に当たった切削屑は、その案内面6aによりハウ
ジング1とは反対側に案内され安全カバー2の側面から
外に排出される。切削開始当初ロアガード4の後部は安
全カバー2内の後部寄りの位置にあり丸鋸刃5が被加工
材を切削する箇所から離れているので、切削屑は被加工
材の墨線上には堆積しない。従って、墨線を確認しつつ
適正な切削をすることができる。In order to cut a workpiece with this portable rotary tool, an electric motor is started, the base 3 is applied to the workpiece, and the front of the circular saw blade 5 is indicated by a black line, for example, of the workpiece. Applied to the cut location. As the cutting progresses, the front part of the lower guard 4 is pressed by the workpiece and the safety cover 2 is pressed.
Swivels in. Also, cutting chips generated by cutting are
It flows along the inner peripheral surface of the safety cover 2 and hits the outward projection 6 located at the rear of the outer peripheral surface of the lower guard 4. Since the outward projection 6 blocks the gap between the outer peripheral surface 4a of the lower guard 4 and the inner peripheral surface 2a of the safety cover 2, the cutting chips do not flow out to the worker behind the safety cover 2. The cuttings that have hit the outward projection 6 are guided by the guide surface 6 a to the opposite side of the housing 1 and are discharged from the side surface of the safety cover 2. At the beginning of cutting, the rear part of the lower guard 4 is located at a position near the rear part in the safety cover 2 and is away from the position where the circular saw blade 5 cuts the work material. . Therefore, appropriate cutting can be performed while checking the black line.
【0012】また、本発明において安全カバー2の内周
面2aにリブ7が設けられる場合は、リブ7によって切
削屑の流れの勢いを殺ぎ外向き突起6と共に切削屑の流
れを安全カバー2の側面へと向けることができる。When a rib 7 is provided on the inner peripheral surface 2a of the safety cover 2 according to the present invention, the rib 7 kills the flow of cutting chips and the flow of the cutting chips together with the outward projection 6 reduces the flow of cutting chips. To the side.
【0013】また、本発明において、上記外向き突起6
と共に、ロアガード4の内周面4bの後端に内向き突起
8が設けられ、該内向き突起8における切削屑の案内面
8aが切削屑を反ハウジング側に案内すべく形成されて
いるので、案内面6a,8aの面積が拡大され、切削屑
をより適正に安全カバー2の側面へと向けることができ
る。In the present invention, the outward projection 6
At the same time, an inward projection 8 is provided at the rear end of the inner peripheral surface 4b of the lower guard 4, and the guide surface 8a for the cutting chips on the inward projection 8 is formed to guide the cutting chips to the opposite side of the housing. The areas of the guide surfaces 6a and 8a are enlarged, so that cutting chips can be more appropriately directed to the side surface of the safety cover 2.
【0014】[0014]
【実施例】以下、図面に基づき本発明の実施例を説明す
る。実施例1 この携帯用回転工具は、図1に例示されるように、具体
的には携帯用丸鋸であり、丸鋸刃5を回転させる電動機
が内蔵されたハウジング1と、該ハウジング1に取り付
けられた上記丸鋸刃5の上部を覆うための安全カバー2
と、被加工材の切削に伴い上記安全カバー2内へと回動
するように上記ハウジング1に支承された上記丸鋸刃5
の下部を覆うためのロアガード4と、上記ハウジング1
又は上記安全カバー2に取り付けられた被加工材に当て
るためのベース3とを具備している。Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 As shown in FIG. 1, this portable rotary tool is a portable circular saw, specifically, a housing 1 in which an electric motor for rotating a circular saw blade 5 is built, and Safety cover 2 for covering the upper part of the attached circular saw blade 5
And the circular saw blade 5 supported by the housing 1 so as to rotate into the safety cover 2 as the workpiece is cut.
A lower guard 4 for covering the lower part of the housing 1 and the housing 1
Or a base 3 attached to the work material attached to the safety cover 2.
【0015】この携帯用回転工具により被加工材を切削
するについては、電動機が起動され、丸鋸刃5が所定回
転数で回転させられ、ベース3が被加工材に当てられ
る。丸鋸刃5は被加工材の例えば墨線で示された切削箇
所に当てられ、ベース3が被加工材上を滑らされること
により丸鋸刃5による切削が進行する。また、切削の進
行に伴いロアガード4が被加工材に押されつつ安全カバ
ー2内へと回動する。In cutting the workpiece by the portable rotary tool, the electric motor is started, the circular saw blade 5 is rotated at a predetermined number of revolutions, and the base 3 is applied to the workpiece. The circular saw blade 5 is applied to a cut portion of the workpiece, for example, indicated by a black line, and the cutting by the circular saw blade 5 proceeds as the base 3 is slid over the workpiece. Further, as the cutting proceeds, the lower guard 4 rotates into the safety cover 2 while being pressed by the workpiece.
【0016】この携帯用回転工具により生ずる切削屑は
安全カバー2の内周面に沿ってその前から後の方へと流
れるようになっているが、安全カバー2の後端から流出
してその後方に居る作業者の方に飛散しないよう、図2
乃至図4に示されるように、上記ロアガード4の外周面
4aの後部には、上記ロアガード4の外周面と上記安全
カバー2の内周面との間の隙間を遮蔽する外向き突起6
が設けられている。また、該外向き突起6には切削屑を
反ハウジング側に案内する案内面6aが形成されてい
る。なお、ロアガード4の後部とは、被加工材を切削し
ていない状態(図1)にあって、図2に示される如く安
全カバー2により覆われている部分を示す。The cutting chips generated by the portable rotary tool flow from the front to the rear along the inner peripheral surface of the safety cover 2, but flow out of the rear end of the safety cover 2 and thereafter. Fig. 2
As shown in FIG. 4, an outward projection 6 that shields a gap between the outer peripheral surface of the lower guard 4 and the inner peripheral surface of the safety cover 2 is provided at the rear of the outer peripheral surface 4 a of the lower guard 4.
Is provided. The outward projection 6 is formed with a guide surface 6a for guiding cutting chips toward the side opposite to the housing. In addition, the rear part of the lower guard 4 indicates a part in which the workpiece is not cut (FIG. 1) and is covered with the safety cover 2 as shown in FIG.
【0017】外向き突起6は、具体的には安全カバー2
の内周面に接触しない程度の高さにロアガード4の半径
方向に突出しており、ロアガード4の外周面4a上にお
いてハウジング側からそれと反対側へ向かうに連れベー
ス3の方向に傾斜している。The outward projection 6 is specifically formed on the safety cover 2.
Projecting in a radial direction of the lower guard 4 so as not to contact the inner peripheral surface of the lower guard 4, and is inclined in the direction of the base 3 from the housing side to the opposite side on the outer peripheral surface 4 a of the lower guard 4.
【0018】しかして、切削により発生する切削屑は、
安全カバー2の内周面に沿って矢印方向bに流れ、ロア
ガード4の外周面4aの後部にある外向き突起6に当た
る。外向き突起6はロアガード4の外周面4aと安全カ
バー2の内周面2aとの間の隙間を遮蔽しているので、
切削屑は安全カバー2の後端への進行を阻止され、外向
き突起6の案内面6aによりハウジング1と反対側に案
内され、安全カバー2の反ハウジング側の側面から安全
カバー2外に排出されることとなる。また、図2に示さ
れるように、切削開始当初ロアガード4の後部は安全カ
バー2内の後部寄りの位置にあり丸鋸刃5が被加工材を
切削する箇所から離れているので、切削屑は被加工材の
切削位置の上には堆積しない。従って、墨線を確認しつ
つ適正な切削をすることができる。However, cutting chips generated by cutting are:
It flows in the direction of the arrow b along the inner peripheral surface of the safety cover 2 and hits the outward projection 6 at the rear of the outer peripheral surface 4 a of the lower guard 4. Since the outward projection 6 shields a gap between the outer peripheral surface 4a of the lower guard 4 and the inner peripheral surface 2a of the safety cover 2,
The cutting chips are prevented from advancing to the rear end of the safety cover 2, guided to the opposite side of the housing 1 by the guide surface 6 a of the outward projection 6, and discharged from the side of the safety cover 2 opposite the housing 1 to the outside of the safety cover 2. Will be done. Further, as shown in FIG. 2, the portion after the cutting beginning Roagado 4 There are circular saw blade 5 on the rear side of the position in the safety cover 2 away from the point of cutting the workpiece, cutting chips Does not accumulate on the cutting position of the workpiece. Therefore, appropriate cutting can be performed while checking the black line.
【0019】実施例2 図5及び図6に示されるように、この携帯用回転工具に
おいては、上記安全カバー2の後端方向へ切削屑が流れ
るのを阻止するためのリブ7が上記安全カバー2の内周
面2aに設けられている。 Embodiment 2 As shown in FIGS. 5 and 6, in this portable rotary tool, a rib 7 for preventing cutting chips from flowing toward the rear end of the safety cover 2 is provided with the safety cover. 2 is provided on the inner peripheral surface 2a.
【0020】この安全カバー2の周壁はその後部寄りの
箇所において外方向に膨らんでおり、その膨らんだ箇所
の内側に多数のリブ7が半径方向に突設されている。こ
れらのリブ7は先端がロアガード4の外向き突起6に接
触しないように形成されている。なお、このリブ7は1
枚であってもよい。The peripheral wall of the safety cover 2 bulges outward at a portion near the rear portion thereof, and a number of ribs 7 project radially inside the bulged portion. These ribs 7 are formed so that the tips do not contact the outward projections 6 of the lower guard 4. The rib 7 is 1
It may be a sheet.
【0021】これにより、安全カバー2の内周面2aに
沿って流れてきた切削屑はリブ7に衝突し、勢いを殺が
れる。そして、外向き突起により流れの向きbを安全カ
バー2の側面へと変えられ、安全カバー2の側面からそ
の外側へ排出されることとなる。As a result, the cutting chips flowing along the inner peripheral surface 2a of the safety cover 2 collide with the ribs 7 and lose their momentum. Then, the flow direction b is changed to the side surface of the safety cover 2 by the outward projection, and the flow is discharged from the side surface of the safety cover 2 to the outside.
【0022】実施例3 図7及び図8に示されるように、この携帯用回転工具に
おいては、上記ロアガード4の内周面4bの後端に内向
き突起8が設けられている。該内向き突起8はロアガー
ド4の後端に設けられた外向き突起6と同方向に傾斜
し、更に、該内向き突起8における切削屑の案内面8a
が上記外向き突起6の案内面6aに連なり面一化されて
いる。 Embodiment 3 As shown in FIGS. 7 and 8, in this portable rotary tool, an inward projection 8 is provided at the rear end of the inner peripheral surface 4b of the lower guard 4. The inward projection 8 is inclined in the same direction as the outward projection 6 provided on the rear end of the lower guard 4, and furthermore, the guide surface 8 a for cutting chips on the inward projection 8.
Are connected to the guide surface 6a of the outward projection 6 and are flush with each other.
【0023】内向き突起8は略コ字形の板であり、その
中央の切欠9内を丸鋸刃5の刃先が通るようになってい
る。なお、本実施例では外向き突起6の案内面6aと内
向き突起8の案内面8aが面一化されているが、外向き
突起6を上記ロアガード4の後端からベース3側に下が
った位置に設け、上記ロアガード4の内周面4bの後端
に設けた内向き突起8と面一に設けない構成としても良
い。The inward projection 8 is a substantially U-shaped plate, and the cutting edge of the circular saw blade 5 passes through the center notch 9. In this embodiment, the guide surface 6a of the outward projection 6 and the guide surface 8a of the inward projection 8 are flush, but the outward projection 6 is lowered from the rear end of the lower guard 4 to the base 3 side. The lower guard 4 may not be provided flush with the inward projection 8 provided at the rear end of the inner peripheral surface 4b of the lower guard 4.
【0024】しかして、切削屑の案内面6a,8aの面
積が拡大されることとなり、切削屑の流れ方向bはより
適正に安全カバー2の側面へと変えられ、安全カバー2
の側面から外に排出されることとなる。Thus, the area of the guide surfaces 6a and 8a for the cutting chips is enlarged, and the flow direction b of the cutting chips is more appropriately changed to the side surface of the safety cover 2, so that the safety cover 2
Will be discharged from the side of the container.
【0025】[0025]
【発明の効果】本発明によれば、切削により発生する切
削屑の安全カバー後端への流れを外向き突起により遮断
し、外向き突起の案内面によりハウジングと反対側の安
全カバー側面の方にその流れの向きを変化させることが
できる。従って、切削屑の安全カバー後端からの流出を
確実に防止することができる。また、外向き突起はロア
ガードの後部にあることから切削開始当初は安全カバー
内の後部寄りの位置にあり、丸鋸刃による切削箇所から
離れている。従って、切削屑が切削位置の上に堆積する
のを防止し、墨線の位置及び向きを容易に確認して適正
な切削をすることができる。According to the present invention, the flow of the cutting chips generated by cutting to the rear end of the safety cover is blocked by the outward projection, and the guide surface of the outward projection is directed to the side of the safety cover opposite to the housing. The direction of the flow can be changed. Therefore, it is possible to reliably prevent the cutting chips from flowing out from the rear end of the safety cover. Further, since the outward projection is located at the rear part of the lower guard, it is located at a position near the rear part in the safety cover at the beginning of cutting, and is separated from the cutting part by the circular saw blade. Therefore, it is possible to prevent cutting chips from accumulating on the cutting position, and to easily confirm the position and the direction of the black line to perform appropriate cutting.
【0026】また、本発明において安全カバーの内周面
にリブが設けられる場合は、リブによって切削屑の流れ
の勢いを殺ぎ外向き突起と共に切削屑の流れを安全カバ
ーの側面へと向け安全カバー後端からの切削屑の飛散を
防止することができる。In the present invention, when a rib is provided on the inner peripheral surface of the safety cover, the rib kills the flow of the cutting waste and directs the flow of the cutting waste together with the outward projection toward the side surface of the safety cover. Scattering of cutting chips from the rear end of the cover can be prevented.
【0027】また、本発明において、上記外向き突起と
共にロアガードの内周面の後端に内向き突起が設けられ
ている場合は、案内面の面積を拡大し切削屑をより適正
に安全カバーの側面へと向け安全カバー後端からの飛散
を防止することができる。Further, in the present invention, when an inward projection is provided at the rear end of the inner peripheral surface of the lower guard together with the outward projection, the area of the guide surface is enlarged, and cutting chips are more appropriately removed. It can be prevented from scattering from the rear end of the safety cover toward the side.
【図1】本発明に係る携帯用回転工具の斜視図である。FIG. 1 is a perspective view of a portable rotary tool according to the present invention.
【図2】上記携帯用回転工具の要部の部分切欠側面図で
ある。FIG. 2 is a partially cutaway side view of a main part of the portable rotary tool.
【図3】図2中 III−III 線断面図である。FIG. 3 is a sectional view taken along line III-III in FIG.
【図4】図2中ロアガードのIV線矢視図である。FIG. 4 is a view of the lower guard in FIG.
【図5】本発明に係る携帯用回転工具の他の実施例の要
部を示す部分切欠側面図である。FIG. 5 is a partially cutaway side view showing a main part of another embodiment of the portable rotary tool according to the present invention.
【図6】図5中VI−VI線断面図である。6 is a sectional view taken along line VI-VI in FIG.
【図7】本発明に係る携帯用回転工具の他の実施例の要
部を示す部分切欠側面図である。FIG. 7 is a partially cutaway side view showing a main part of another embodiment of the portable rotary tool according to the present invention.
【図8】図7中ロアガードのVIII線矢視図である。FIG. 8 is a view of the lower guard taken along line VIII in FIG. 7;
1…ハウジング 2…安全カバー 2a…安全カバーの内周面 3…ベース 4…ロアガード 4a…ロアガードの外周面 4b…ロアガードの内周面 5…丸鋸刃 6…外向き突起 6a…切削屑の案内面 7…リブ 8…内向き突起 8a…切削屑の案内面 DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Safety cover 2a ... Inner peripheral surface of a safety cover 3 ... Base 4 ... Lower guard 4a ... Outer peripheral surface of a lower guard 4b ... Inner peripheral surface of a lower guard 5 ... Circular saw blade 6 ... Outward projection 6a ... Guide of cutting waste Surface 7: rib 8: inward projection 8a: guide surface for cutting chips
Claims (3)
ハウジングと、該ハウジングに取り付けられた上記丸鋸
刃の上部を覆うための安全カバーと、被加工材の切削に
伴い上記安全カバー内へと回動するように上記ハウジン
グに支承された上記丸鋸刃の下部を覆うためのロアガー
ドと、上記ハウジング又は上記安全カバーに取り付けら
れた被加工材に当てるためのベースとを具備した携帯用
回転工具において、上記ロアガードの外周面と上記安全
カバーの内周面との間の隙間を遮蔽する外向き突起が上
記ロアガードの外周面の後部に設けられ、かつ該外向き
突起には、上記ハウジング側から反ハウジング側へ向か
うに連れベースの方に傾斜した切削屑を反ハウジング側
に案内する案内面が形成されたことを特徴とする携帯用
回転工具。1. A housing in which an electric motor for rotating a circular saw blade is built, a safety cover for covering an upper portion of the circular saw blade attached to the housing, and a safety cover for cutting a work material. A portable device comprising a lower guard for covering a lower portion of the circular saw blade supported by the housing so as to rotate toward the housing, and a base for abutting a workpiece attached to the housing or the safety cover. In the rotating tool, an outward projection that shields a gap between an outer peripheral surface of the lower guard and an inner peripheral surface of the safety cover is provided at a rear portion of an outer peripheral surface of the lower guard, and the outward projection includes the housing. From side to opposite housing side
A portable rotary tool having a guide surface for guiding cutting chips inclined toward the base toward the opposite side of the housing.
れるのを阻止するためのリブが上記安全カバーの内周面
に設けられたことを特徴とする請求項1の携帯用回転工
具。2. The portable rotary tool according to claim 1, wherein a rib for preventing cutting chips from flowing toward the rear end of the safety cover is provided on an inner peripheral surface of the safety cover.
突起が設けられ、該内向き突起における切削屑の案内面
が切削屑を反ハウジング側に案内すべく形成されたこと
を特徴とする請求項1又は2の携帯用回転工具。3. An inward projection is provided at a rear end of an inner peripheral surface of the lower guard, and a guide surface of the chip on the inward projection is formed to guide the chip toward the opposite side of the housing. The portable rotary tool according to claim 1 or 2, wherein
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9642295A JP2912564B2 (en) | 1995-04-21 | 1995-04-21 | Portable rotating tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9642295A JP2912564B2 (en) | 1995-04-21 | 1995-04-21 | Portable rotating tools |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08290407A JPH08290407A (en) | 1996-11-05 |
JP2912564B2 true JP2912564B2 (en) | 1999-06-28 |
Family
ID=14164554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9642295A Expired - Fee Related JP2912564B2 (en) | 1995-04-21 | 1995-04-21 | Portable rotating tools |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2912564B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1158305A (en) * | 1997-08-26 | 1999-03-02 | Ryobi Ltd | Cutting machine |
JP3611452B2 (en) * | 1998-06-19 | 2005-01-19 | リョービ株式会社 | Cutting powder discharge mechanism of circular saw machine |
JP6930205B2 (en) * | 2017-05-01 | 2021-09-01 | マックス株式会社 | Portable cutting machine |
JP7210226B2 (en) * | 2018-11-02 | 2023-01-23 | 株式会社マキタ | portable cutting machine |
-
1995
- 1995-04-21 JP JP9642295A patent/JP2912564B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH08290407A (en) | 1996-11-05 |
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LAPS | Cancellation because of no payment of annual fees |