JP2000176908A - Dust collecting type motorized circular saw - Google Patents

Dust collecting type motorized circular saw

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Publication number
JP2000176908A
JP2000176908A JP10356142A JP35614298A JP2000176908A JP 2000176908 A JP2000176908 A JP 2000176908A JP 10356142 A JP10356142 A JP 10356142A JP 35614298 A JP35614298 A JP 35614298A JP 2000176908 A JP2000176908 A JP 2000176908A
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JP
Japan
Prior art keywords
dust collecting
circular saw
fixed cover
saw blade
suction port
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.)
Withdrawn
Application number
JP10356142A
Other languages
Japanese (ja)
Inventor
Kazuto Toyama
一人 外山
Original Assignee
Matsushita Electric Works Ltd
松下電工株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd, 松下電工株式会社 filed Critical Matsushita Electric Works Ltd
Priority to JP10356142A priority Critical patent/JP2000176908A/en
Publication of JP2000176908A publication Critical patent/JP2000176908A/en
Application status is Withdrawn legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting type electric circular saw, with which no cut dusts fly to a user side during a cutting work, which realizes a high dust collecting function and, at the same time, has favorable workability and safety. SOLUTION: In a dust collecting type motorized circular saw, on a fixed cover 34 covering the upper half of a rotatingly driven circular saw blade 2 and having a near semicircular crosssection of which a dust collecting duct 5, which can connect to a dust collecting bag and to the suction port of a cleaner, is provided, the suction port 5a opening in the fixed cover 3 in the duct collecting duct 5 is precisely directed towards the tangent T of the circular saw blade 2 and provided not opposite to the rotational direction of the circular saw blade 2.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、切粉を集塵する電動丸鋸に関するものである。 BACKGROUND OF THE INVENTION The present invention relates to an electric circular saw for dust collection of chips.

【0002】 [0002]

【従来の技術】従来、フロアー内での木板等の切断作業では、切粉を集塵できる集塵式電動丸鋸を用いている。 Conventionally, the cutting operation of wood board or the like in the floor, are used dust collecting type electric circular saw capable of dust collection and chips.
そして、前記集塵式電動丸鋸は、その固定カバー3に設けた集塵ダクト5に、工業用掃除機の吸入口を連結するためのアタッチメントが装着可能となっており、切断作業時に生じる切粉を工業用掃除機で吸い取っている。 Then, the dust type electric circular saw, the dust collecting duct 5 provided in the fixed cover 3 has attachment for connecting the inlet of an industrial cleaner becomes mountable, switching occurring during the cutting operation We have blotted the powder in an industrial vacuum cleaner.

【0003】 [0003]

【発明が解決しようとする課題】ところが、工業用掃除機を用いて集塵せずに切断作業を行う場合、図2に示すように集塵ダクト5における固定カバー3内に開口する吸入口5aが、集塵式電気丸鋸の後方で、しかも丸鋸刃2の接線T方向に正対し、且つ丸鋸刃2の回転方向に対向するように開口しているため、切粉の大半が集塵ダクト5を通って使用者の方に飛散する。 [SUMMARY OF THE INVENTION However, when performing cutting work without dust collection using an industrial vacuum cleaner, the suction port 5a which is open to the fixed cover 3 in the dust collecting duct 5, as shown in FIG. 2 but behind the dust collecting electric circular saw, moreover directly facing the tangential direction T of the circular saw blade 2, and since the opening so as to face the direction of rotation of the circular saw blade 2, most of the cuttings collector scattered towards the user through the dust duct 5. そこで、これを防ぐために、集塵ダクト5の排出口5bに栓をして、切粉を固定カバー3の後側端部3aから下方向に排出させる方法がとられている。 In order to prevent this, the plug to the outlet 5b of the dust collecting duct 5, a method of discharging downwardly from the side end portion 3a after fixing the cover 3 the chips have been taken. このように集塵ダクト5における固定カバー3内に開口する吸入口5aが上記のように設けてあるものでは、工業用掃除機を用いるか、集塵ダクト5の排出口5bを塞がない限り、使用者の方に切粉が飛散してしまうため、作業性及び安全性において極めて悪いものとなる。 Those suction port 5a which opens the way to the fixed cover 3 in the dust collecting duct 5 are provided as described above, or using an industrial vacuum cleaner, unless block the outlet 5b of the dust collecting duct 5 since the chips towards the user will be scattered, it becomes extremely poor in workability and safety.

【0004】本発明は上記の点に鑑みて為されたものであり、切断作業時に切粉が使用者の方に飛散せず、高い集塵機能を実現するとともに、作業性及び安全性の良好な集塵式電気丸鋸を提供することを目的としている。 [0004] The present invention has been made in view of the above, chips during the cutting operation does not scatter towards the user, as well as achieve a high dust collecting function, good workability and safety and its object is to provide a dust collecting electric circular saw.

【0005】 [0005]

【課題を解決するための手段】本発明の請求項1に係る集塵式電気丸鋸は、回転駆動される丸鋸刃2の上半分を覆い、略半円形の断面を有する固定カバー3に集塵袋や掃除機の吸入口に連結できる集塵ダクト5を設けた集塵式電動丸鋸において、集塵ダクト5における固定カバー3内に開口する吸入口5aを丸鋸刃2の接線T方向に正対させるとともに、丸鋸刃2の回転方向に対向しないように設けたことを特徴とするものである。 Means for Solving the Problems] The dust collecting electric circular saw according to claim 1 of the present invention covers the upper half of the circular saw blade 2 which is driven to rotate, substantially the fixed cover 3 having a semicircular cross-section in the dust collecting type electric saw provided with a dust collecting duct 5 which can be connected to the suction port of the dust bag and vacuum cleaners, the suction port 5a which is open to the fixed cover 3 in the dust collecting duct 5 of the circular saw blade 2 tangent T together is confronting direction, it is characterized in that provided so as not to face the direction of rotation of the circular saw blade 2.

【0006】また本発明の請求項2に係る集塵式電気丸鋸は、請求項1の構成に加えて、集塵ダクト5における固定カバー3内に開口する吸入口5aを、集塵式電気丸鋸の前方で、且つ固定カバー3の上部に設けたことを特徴とするものである。 [0006] The dust collecting electric circular saw according to claim 2 of the present invention, in addition to the first aspect, the suction port 5a which is open to the fixed cover 3 in the dust collecting duct 5, the dust collecting electric in front of the circular saw, it is characterized in that and provided on an upper portion of the fixed cover 3.

【0007】 [0007]

【発明の実施の形態】以下、本発明の実施の形態を図1 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, FIG. 1 the embodiment of the present invention
に基づいて説明する。 It will be described with reference to.

【0008】本発明の集塵式電動丸鋸はモーターを横設して配置し、モーターの駆動軸先端に丸鋸刃2を固設し、モーターを駆動することにより丸鋸刃2を矢印A方向に回転駆動させ、回転する丸鋸刃2の前側端部2aを被切断材に当接させて、本体1の後方に伸びたグリップ部6を把持して集塵式電動丸鋸を前進させることにより被切断材を切断する。 [0008] The dust collecting type electric circular saw of the present invention is arranged to be laterally disposed motor, a circular saw blade 2 is fixed to the drive shaft distal end of the motor, the circular saw blade 2 by driving the motor arrow A direction was the rotationally driven, the front end portion 2a of the circular saw blade 2 rotating is brought into contact with workpiece, advancing the dust collecting type electric circular saw by gripping the grip portion 6 extending rearwardly of the main body 1 cutting the workpiece by. 尚、グリップ部6には電源用のスイッチ8が設けてある。 Incidentally, the grip portion 6 are switch 8 for power supply provided. 本体1の側方に配設された丸鋸刃2は、その上半分を略半円形の固定カバー3にて覆われ、固定カバー3の下面にはベース7が取付けられ、切断作業時に被切断材の上面にこのベース7を載置させて集塵式電動丸鋸を前進させる。 Circular saw blade 2 disposed on the side of the main body 1 is covered thereon half in a substantially semicircular fixed cover 3, the base 7 is attached to the lower surface of the fixed cover 3 is to be cut during the cutting operation by placing the base 7 to the upper surface of the timber to advance the dust collecting type electric circular saw. 固定カバー3にてその上半分を覆われた丸鋸刃2は、ベース7の下方にその下半分を突出させており、この下半分の突出部は、丸鋸刃2 Circular saw blade 2 covered the upper half thereof at a fixed cover 3 is allowed to protrude half its underside below the base 7, the protruding portion of the lower half, the circular saw blade 2
の下半分の周方向に回動自在に可動する可動カバー4にて覆われている。 It is covered with a movable cover 4 which freely movable pivot in the circumferential direction of the lower half of the. そして、この可動カバー4は本体1に取付けられており、本体1に取付けたばねにて矢印A方向と同方向に回転付勢され、切断に必要な分だけ丸鋸刃2を露出させるようになっており、切断が進行するにつれて、矢印A方向と反対方向に回転し、固定カバー3内に収納されるようになっている。 Then, the movable cover 4 is attached to the main body 1 is rotated urged in the direction of the arrow A in the same direction at a spring attached to the main body 1, so as to expose the amount corresponding circular saw blade 2 necessary cutting and which, as the cutting progresses, rotates in the direction opposite to the direction of arrow a, and is housed in the fixed cover 3.

【0009】集塵式電動丸鋸の前方側で、固定カバー3 [0009] In the front side of the dust collection type electric circular saw, fixed cover 3
の上部には集塵ダクト5が配設してあり、この集塵ダクト5における固定カバー3内に開口する吸入口5aは丸鋸刃2の接線T方向に正対させるとともに、丸鋸刃2の回転方向に対向しないように設けてある。 Of the upper Yes and dust collecting duct 5 are arranged, the suction port 5a which is open to the fixed cover 3 in the dust collecting duct 5 causes the confronting tangential direction T of the circular saw blade 2, the circular saw blade 2 It is provided in the rotational direction so as not to face. 固定カバー3 Fixed cover 3
の前方に突出する集塵ダクト5の排出口5bの外周部は工業用掃除機の吸入口と連結するためのアタッチメントが装着可能となっている。 The outer peripheral portion of the discharge port 5b of the dust collecting duct 5 to the projecting forward attachment for connecting the suction port of an industrial vacuum cleaner has a mountable. そして、集塵ダクト5の排出口5bの外周部にアタッチメントを装着して、工業用掃除機の吸入口と集塵ダクト5の排出口5bとを連結して、工業用掃除機の電源を入れ、吸引できる状態にして、本集塵式電動丸鋸で切断作業を行う。 Then, by mounting the attachment to the outer peripheral portion of the discharge port 5b of the dust collecting duct 5, and connects the discharge port 5b of the inlet and dust collecting duct 5 for industrial vacuum cleaners, power industrial vacuum cleaners , and ready for aspiration, to cut work in this dust collection type electric saw. この時、被切断材に当接させた丸鋸刃2の前側端部2aにて発生した切粉は、丸鋸刃2の慣性力と丸鋸刃2の回転駆動によって発生する空気流によって、固定カバー3内を矢印B方向に流れる。 In this case, chips generated in the of the circular saw blade 2 which is in contact with the workpiece front end 2a is an airflow generated by the rotation of the inertial force and the circular saw blade 2 of the circular saw blade 2, flowing in the fixed cover 3 in the arrow B direction. 本発明の集塵式電動丸鋸では、集塵ダクト5における固定カバー3内に開口する吸入口5aを丸鋸刃2の接線T方向に正対させているので、吸入口5aを丸鋸刃2の接線T方向に正対させない場合と比べて、固定カバー3内を周方向に流れる切粉を長い範囲に亘って吸引することができる。 The dust collecting type electric circular saw of the present invention, since the suction port 5a which is open to the fixed cover 3 in the dust collecting duct 5 directly facing the tangential direction T of the circular saw blade 2, circular saw blade an inlet 5a compared with the case of not directly face the second tangent T direction can be sucked over the chips flowing through the fixed cover 3 in the circumferential direction longer range. さらには吸入口5aを丸鋸刃2 The circular saw blade 2 a suction port 5a further
の回転方向に対向しないように設けたことで、集塵ダクト5に工業用掃除機を接続しない場合は、切粉は固定カバー3内を周方向に流れて固定カバー3の後側端部3a Rotational direction by providing so as not to face and does not connect the industrial cleaner dust collecting duct 5, chips side end portion 3a after fixing the cover 3 flows through the fixed cover 3 in the circumferential direction of the
から下方へ落ち、使用者の顔等に向けて切粉が飛散するようなことがないので、高い集塵機能を有するとともに作業性及び安全性において良好なものを実現することができる。 From falling down, since there is no such thing as chips from scattering toward the face or the like of the user, it is possible to realize a favorable in workability and safety has high dust collecting function.

【0010】また本発明の集塵式電動丸鋸では、集塵ダクト5における固定カバー3内に開口する吸入口5a [0010] In the dust collecting type electric circular saw of the present invention, the suction port 5a which is open to the fixed cover 3 in dust collecting duct 5
を、集塵式電動丸鋸の前方で、且つ固定カバー3の上部に設けているので、集塵ダクト5に工業用掃除機を接続した際、固定カバー3内を周方向に流れる切粉に対して工業用掃除機の吸引力の及ぶ範囲を最も長くとることができ、さらに高い集塵機能を実現することができる。 And in front of the dust collection type electric circular saw, and so is provided in the upper portion of the fixed cover 3, when connecting the industrial cleaner dust collecting duct 5, the chips flowing through the fixed cover 3 in the circumferential direction can take longest extent of the suction force of an industrial vacuum cleaner for, it is possible to achieve a higher dust collecting function.
尚、工業用掃除機の吸引力は上記のように集塵ダクト5 The suction force of an industrial vacuum cleaner dust collecting duct as above 5
を配設しても、切粉の大半を吸引するに十分な大きさである。 It is arranged to a large enough to suck most of the chips.

【0011】 [0011]

【発明の効果】本発明の請求項1に記載の発明にあっては、回転駆動される丸鋸刃の上半分を覆い、略半円形の断面を有する固定カバーに集塵袋や掃除機の吸入口に連結できる集塵ダクトを設けた集塵式電動丸鋸において、 In the invention of claim 1 of the present invention, covers the upper half of the circular saw blade that is driven to rotate, substantially semi-circular dust bag section to the fixed cover with or cleaner in the dust collecting type electric saw provided with a dust collecting duct that can be connected to the suction port,
集塵ダクトにおける固定カバー内に開口する吸入口を丸鋸刃の接線方向に正対させることで、集塵ダクトに工業用掃除機を接続した際、前記吸入口を丸鋸刃の接線方向に正対させない場合と比べて、固定カバー内を周方向に流れる切粉を長い範囲に亘って吸引することができ、且つ前記吸入口を丸鋸刃の回転方向に対向しないように設けたことで、集塵ダクトに工業用掃除機を接続しない場合は、切粉は固定カバー内を周方向に流れて固定カバーの後側端部から下方へ落ちるので、使用者の顔等に向けて切粉が飛散するようなことがないので、高い集塵機能を有するとともに作業性及び安全性において良好なものを実現することができる。 An inlet opening into fixed within the cover of the dust collecting duct that is confronting the tangential direction of the circular saw blade, when connecting the industrial cleaner dust collecting duct, the inlet in the tangential direction of the circular saw blade compared with the case of not confronting the chips flowing through the fixed cover in a circumferential direction can be sucked over a long range, and that the provided so as not to face the suction port in the rotation direction of the circular saw blade and does not connect the industrial cleaner dust collecting duct, chips are so fall from the rear end portion of the fixed cover flows through the fixed cover in a circumferential direction downwards, towards the user's face such as chips because There is not as scattered, it is possible to realize a favorable in workability and safety has high dust collecting function.

【0012】また請求項2に記載の発明にあっては、請求項1に記載の発明の効果に加えて、集塵ダクトにおける固定カバー内に開口する吸入口を、集塵式電動丸鋸の前方で、且つ固定カバーの上部に設けたことで、集塵ダクトに工業用掃除機を接続した際、固定カバー内を周方向に流れる切粉に対して工業用掃除機の吸引力の及ぶ範囲を最も長くとることができ、さらに高い集塵機能を実現することができる。 [0012] In the invention described in claim 2, in addition to the effect of the invention according to claim 1, an inlet opening into the fixed cover in dust collection ducts, the dust collection type electric circular saw in front, and by providing the upper portion of the fixed cover, when connecting the industrial cleaner dust collecting duct, over which the suction force of an industrial vacuum cleaner against chips flowing within fixed cover in a circumferential direction range can take longest, it is possible to realize a higher dust collecting function.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の形態の一例を示す一部縦断面図である。 1 is a longitudinal sectional view of a portion of an example of embodiment of the present invention.

【図2】従来例を示す一部縦断面図である。 2 is a longitudinal sectional view of a portion showing a conventional example.

【符号の説明】 DESCRIPTION OF SYMBOLS

2 丸鋸刃 3 固定カバー 5 集塵ダクト 5a 吸入口 T 接線 2 the circular saw blade 3 fixed cover 5 dust collecting duct 5a inlet T tangent

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 回転駆動される丸鋸刃の上半分を覆い、 1. A cover the upper half of the circular saw blade that is driven to rotate,
    略半円形の断面を有する固定カバーに集塵袋や掃除機の吸入口に連結できる集塵ダクトを設けた集塵式電動丸鋸において、集塵ダクトにおける固定カバー内に開口する吸入口を丸鋸刃の接線方向に正対させるとともに、丸鋸刃の回転方向に対向しないように設けたことを特徴とする集塵式電動丸鋸。 Round substantially in the dust collecting type electric saw provided with a dust collecting duct that can be connected to the suction port of the dust bag and vacuum cleaners to the fixed cover having a semi-circular cross-section, an inlet opening into the fixed cover in dust collecting duct together to the facing in the tangential direction of the saw blade, the dust collecting type electric circular saw, characterized in that provided so as not to face the direction of rotation of the circular saw blade.
  2. 【請求項2】 集塵ダクトにおける固定カバー内に開口する吸入口を、集塵式電動丸鋸の前方で、且つ固定カバーの上部に設けたことを特徴とする請求項1記載の集塵式電動丸鋸。 Wherein a suction port opening into the fixed cover in dust collection ducts, dust collection type in front of the electric saw, and claim 1, wherein the dust collection type, characterized in that provided in the upper portion of the fixed cover electric circular saw.
JP10356142A 1998-12-15 1998-12-15 Dust collecting type motorized circular saw Withdrawn JP2000176908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10356142A JP2000176908A (en) 1998-12-15 1998-12-15 Dust collecting type motorized circular saw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10356142A JP2000176908A (en) 1998-12-15 1998-12-15 Dust collecting type motorized circular saw

Publications (1)

Publication Number Publication Date
JP2000176908A true JP2000176908A (en) 2000-06-27

Family

ID=18447551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10356142A Withdrawn JP2000176908A (en) 1998-12-15 1998-12-15 Dust collecting type motorized circular saw

Country Status (1)

Country Link
JP (1) JP2000176908A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD487385S1 (en) 2002-06-07 2004-03-09 Black & Decker Inc. Circular saw handle
USD489954S1 (en) 2002-10-01 2004-05-18 Milwaukee Electric Tool Corporation Latch of a circular saw
US6898854B2 (en) 2002-06-07 2005-05-31 Black & Decker Inc. Modular power tool
CN101524853A (en) * 2008-03-07 2009-09-09 株式会社牧田 Sawing machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD487385S1 (en) 2002-06-07 2004-03-09 Black & Decker Inc. Circular saw handle
US6898854B2 (en) 2002-06-07 2005-05-31 Black & Decker Inc. Modular power tool
US7805841B2 (en) 2002-06-07 2010-10-05 Black & Decker Inc. Modular power tool
US7814663B2 (en) 2002-06-07 2010-10-19 Black & Decker Inc. Modular power tool
USD489954S1 (en) 2002-10-01 2004-05-18 Milwaukee Electric Tool Corporation Latch of a circular saw
CN101524853A (en) * 2008-03-07 2009-09-09 株式会社牧田 Sawing machine

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