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JP4021625B2 - Dust collector and electric tool - Google Patents

Dust collector and electric tool Download PDF

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Publication number
JP4021625B2
JP4021625B2 JP2001026015A JP2001026015A JP4021625B2 JP 4021625 B2 JP4021625 B2 JP 4021625B2 JP 2001026015 A JP2001026015 A JP 2001026015A JP 2001026015 A JP2001026015 A JP 2001026015A JP 4021625 B2 JP4021625 B2 JP 4021625B2
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Prior art keywords
dust collector
dust
motor
housing
battery
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JP2002224631A (en
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博明 市川
美徳 柴田
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Makita Corp
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Makita Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、粉塵等を集塵するために用いられる集塵機と、その集塵機と併せて使用する電動工具とに関する。
【０００２】
【従来の技術】
上記集塵機は、集塵室を有するハウジング内に、モータ駆動するブロアを内設し、ハウジングには吸塵ホースが接続される吸塵口を設けてなる。一方、例えばハンマードリル等の電動工具は、ビットの先端に添着されるアタッチメント等を介して吸塵ホースと接続される。よって、電動工具と集塵機とを共に作動させると、ブロアが回転して作業時に発生した粉塵等を空気と共に吸塵ホースから吸い込む。ハウジングに吸い込まれた空気は、集塵室を通過してハウジングの排気孔から外部へ排出されるが、粉塵等は集塵室とブロアとの境に設けられるフィルタによって捕捉されるため、そのまま集塵室内に貯留することとなる。
【０００３】
【発明が解決しようとする課題】
従来の集塵機では、電源として交流電源が利用されているため、使用場所が高所や山間部等の電源事情の悪い場所であると、集塵機が使用できなかったり、長い延長コードを引き回す必要が生じたりして、使い勝手が悪くなってしまう。
又、電動工具は、直流モータを備えたＤＣ工具ではハウジングに装着したバッテリを電源としているため、重量が大きくなって作業性の低下に繋がる。又、集塵機と別個の電源を利用することで、バッテリの容量が早くなくなって使い勝手を損ねることもある。
【０００４】
そこで、請求項１に記載の発明は、電源事情にかかわらず使い勝手に優れた集塵機を提供することを目的としたもので、請求項２に記載の発明は、請求項１の集塵機と好適に併用でき、同じく使い勝手に優れた電動工具を提供することを目的としたものである。
【０００５】
【課題を解決するための手段】
上記目的を達成するために、請求項１に記載の発明は、集塵室を有するハウジング内に、バッテリと、そのバッテリの電源で駆動し、ブロアを回転させる直流モータとを内設する一方、ハウジングに、吸塵ホースを接続可能な吸塵口と、外部電源出力用のコンセントとを設けて、バッテリの電源を外部に供給可能とすると共に、切替スイッチの操作により、直流モータが単独で駆動する単独運転と、コンセントに電気的接続された電動工具の作動と連動して直流モータが駆動する連動運転とに切替可能としてなる集塵機としたものである。
上記目的を達成するために、請求項２に記載の発明は、直流モータを内蔵すると共に、請求項１に記載の集塵機のコンセントに差し込み接続可能な電源コードを備え、コンセントから得られる外部電源によって直流モータを駆動させてなる電動工具としたものである。
請求項３に記載の発明は、請求項２の目的に加えて、集塵機と併用する際の操作性や作業性を一層向上させるために、吸塵ホースに電源コードを一体化させたものである。
【０００６】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
図１は、集塵機１及び電動工具としてのハンマードリル１０の斜視図、図２はその電気回路図で、まず集塵機１は、縦長のハウジング２の内部に集塵室を形成し、その集塵室の下部に、電源として、２つのバッテリ３，３を搭載して並列接続する一方、集塵室の上方には、バッテリ３，３を電源として図示しないブロアを回転駆動させる直流モータ４を収容している。又、ハウジング２には、上部に持ち運び用の把手５が形成されると共に、上部及び左右の側部に背負い用のベルト６，６が装着可能となっている。
更に、ハウジング２の一方の側部には、集塵室と連通する吸塵口７が突設され、吸塵口７の上方に、蓋体９を備えた外部電源出力用のコンセント８が設けられている。
【０００７】
一方、ハンマードリル１０は、ハウジング１１に内蔵した直流モータ１２の駆動によって、ハウジング１１先端に装着したビット１３に、回転のみ、打撃のみ、回転＋打撃の何れかの動作を付与可能としたもので、ハウジング１１に設けたスイッチレバー１４を押し込み操作することでハウジング１１内部のスイッチ１５をＯＮさせる。
そして、ハウジング１１には、ビット１３の先端際へ延びるアタッチメント１６が取り付けられ、そのアタッチメント１６と集塵機１の吸塵口７との間に、吸塵ホース１７，１８が接続されている。この吸塵ホース１７，１８の内部には、電源コード１９が挿通されて、一方のコネクタ２０を吸塵ホース１７におけるハンマードリル１０際で外部に引き出してハウジング１１に設けたコネクタ２１に、他方のプラグ２２を吸塵ホース１８における集塵機１際で外部に引き出してコンセント８に夫々差し込み可能となっている。
【０００８】
そして、集塵機１において、直流モータ４の駆動回路には、切替スイッチ２３と制御回路２４とが設けられる。切替スイッチ２３は、ハウジング２外部からの操作によって、制御回路２４を介さずにバッテリ３，３の電源を直接直流モータ４へ供給させる手動ＯＮ位置と、制御回路２４を介してバッテリ３，３の電源を直流モータ４へ供給させる連動ＯＮ位置と、何れのＯＮ位置にも接続されないＯＦＦ位置とに夫々切替可能となっている。又、制御回路２４は、電源コード１９によってハンマードリル１０と電気的接続された状態では、ハンマードリル１０側の直流モータ１２及びスイッチ１５と分流器２５とで直流モータ１２の駆動回路を形成し、切替スイッチ２３が連動ＯＮ位置に切り替えられた状態でハンマードリル１０のスイッチ１５がＯＮされると、制御回路２４はハンマードリル１０の直流モータ１２へバッテリ３，３の電源を供給すると共に、集塵機１の直流モータ４へもバッテリ３，３の電源を供給して、両者を共に駆動させるようになっている。
【０００９】
以上の如く構成された集塵機１においては、切替スイッチ２３が手動ＯＮ位置に切り替えられると、バッテリ３，３から供給される電源によって直流モータ４が単独で駆動してブロアを回転させ、吸塵口７から外気を取り込み、集塵室を通してハウジング２の外部へ排気する。集塵室には、周知のようにブロアとの境にフィルタが設けられていることから、空気と共に吸い込まれた粉塵等はフィルタに遮られ、集塵室に貯留する。溜まった粉塵等は、ハウジング２の側面に設けられた図示しない蓋部を開放して廃棄可能となる。一方、切替スイッチ２３がＯＦＦ位置に切り替えられると、直流モータ４への電源供給は遮断されて集塵機１の運転は停止する。
そして、切替スイッチ２３が連動ＯＮ位置に切り替えられると、コンセント８に電気的接続されたハンマードリル１０側のスイッチ１５がＯＮされない限り集塵機１は運転しない。即ち、前述の如く、スイッチ１５がＯＮしてハンマードリル１０が作動した場合にのみ、制御回路２４がバッテリ３，３の電源を直流モータ４へ供給して集塵機１を連動させるものとなる。尚、制御回路２４には遅延回路が設けられており、ハンマードリル１０の作動が停止した後も数秒間集塵機１の運転を続行させ、吸塵ホース１７，１８内に残る粉塵等を集塵室へ吸い込ませるようになっている。
【００１０】
このように上記形態の集塵機１によれば、ハウジング２内に、バッテリ３，３と、そのバッテリ３，３を電源として駆動する直流モータ４とを内設する一方、ハウジング２に設けた外部電源出力用のコンセント８を利用して、バッテリ３，３の電源をハンマードリル１０にも供給可能としたことで、図３に示すように、使用場所が高所や山間部等の電源事情の悪い場所であっても支障なく集塵機１を使用可能となる。特に、集塵機１に電源コードや延長コードが接続されないため、作業時の移動にも至便で使い勝手が向上する。
【００１１】
一方、上記形態のハンマードリル１０によれば、集塵機１のコンセント８に差し込み接続可能な電源コード１９を備え、コンセント８から得られるバッテリ３，３の電源によって内蔵した直流モータ１２を駆動させる構成としたことで、同じバッテリ電源を使用できて集塵機１との使用時間が略等しくなると共に、集塵機１との接続専用タイプとして別個にバッテリを装着する必要がなくなって軽量化が図られるため、ハンマードリル１０の使い勝手が向上する。
特にここでは、集塵機１とハンマードリル１０とを接続する吸塵ホース１７，１８内に電源コード１９を挿通して両者を一体化させているから、電源コード１９を別個に引き回す必要がなくなる上、よじれて邪魔になることもないため、集塵機１と併用する際の操作性や作業性を一層向上させることができる。
【００１２】
尚、上記形態では、ハンマードリル１０は集塵機１との接続専用タイプとして説明しているが、通常のバッテリ着脱タイプであっても、図４に示すように、ハンマードリルのハウジングに装着されるバッテリに代えて、ハウジングへの装着状態でスイッチ１５と電気的接続されると共に、電源コード１９のコネクタ２０と接続可能なコネクタを同様に備えたバッテリアダプタ２６を用いることで、接続専用タイプと遜色なく使用でき、同様の作用効果が得られる。又、集塵機１にＤＣ−ＤＣコンバータ回路を備えれば、定格電圧の異なるＤＣ工具が使用可能となる。更に、集塵機１にインバータ回路を備え、コンセント８から交流を出力するようにすれば、通常のＡＣ工具も同様に使用可能である。勿論電動工具はハンマードリルに限らず、マルノコやグラインダ、カッタ等も使用できる。
【００１３】
更に、集塵機のバッテリへの充電は、ケーブルによって充電器と接続することで行う他、バッテリ自体を集塵機のハウジングに対して着脱可能として、集塵機から取り外して充電器へ直接セットして充電可能としても良い。
その他、上記形態では集塵機を背負った使用状態で説明しているが、このような携帯使用に限らず、床等に置いて使用する場合でも同様の作用効果が得られるが、上記形態のように背負い用とすれば、バッテリの搭載により集塵機の重量が増えた場合でも作業者への負担が少なく、支障なく作業できるという効果が得られる。
一方、吸塵ホースと電源コードとの一体化は、吸塵ホース内部を挿通させるものに限らず、吸塵ホースの外面に電源コードを沿わせるフック等の係止手段を設けることでも実現可能である。又、電源コードの形態も、両端にコネクタとプラグを備えた上記別体の形状に限らず、集塵機への接続専用タイプとして電動工具のハウジングへ一体に接続された電源コードとする等、適宜変更して差し支えない。
【００１４】
【発明の効果】
請求項１に記載の発明によれば、集塵室を有するハウジング内に、バッテリと直流モータとを内設し、ハウジングに前記吸塵口とコンセントとを設けて、バッテリの電源を外部に供給可能としてなる集塵機としたことで、使用場所が高所や山間部等の電源事情の悪い場所であっても支障なく集塵機を使用可能となる。特に、集塵機に電源コードや延長コードが接続されないため、作業時の移動にも至便で使い勝手が向上する。
請求項２に記載の発明によれば、請求項１に記載の集塵機のコンセントに差し込み接続可能な電源コードを備え、コンセントから得られる外部電源によって内蔵した直流モータを駆動させる電動工具としたことで、同じバッテリ電源を使用できて集塵機との使用時間が略等しくなると共に、別個にバッテリを装着する必要がなくなって軽量化が図られるため、使い勝手が向上する。
請求項３に記載の発明によれば、請求項２の効果に加えて、吸塵ホースに電源コードを一体化させたことで、集塵機と併用する際の操作性や作業性を一層向上させることができる。
【図面の簡単な説明】
【図１】集塵機及びハンマードリルの斜視図である。
【図２】集塵機及びハンマードリルの電気回路図である。
【図３】集塵機及びハンマードリルの使用状態を示す説明図である。
【図４】電気回路図の変更例である。
【符号の説明】
１・・集塵機、２・・ハウジング、３・・バッテリ、４，１２・・直流モータ、７・・吸塵口、８，２１・・コンセント、１０・・ハンマードリル、１７，１８・・吸塵ホース、１９・・電源コード、２０，２１・・コネクタ、２２・・プラグ、２３・・切替スイッチ、２４・・制御回路。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dust collector used for collecting dust and the like, and an electric tool used in combination with the dust collector.
[0002]
[Prior art]
The dust collector includes a blower driven by a motor in a housing having a dust collecting chamber, and a dust suction port to which a dust suction hose is connected. On the other hand, for example, a power tool such as a hammer drill is connected to the dust suction hose via an attachment attached to the tip of the bit. Therefore, when the power tool and the dust collector are operated together, the blower rotates and sucks dust and the like generated during the operation together with air from the dust suction hose. The air sucked into the housing passes through the dust collection chamber and is discharged to the outside from the exhaust hole of the housing.However, dust and the like are trapped by a filter provided at the boundary between the dust collection chamber and the blower, and thus collected as it is. It will be stored in the dust chamber.
[0003]
[Problems to be solved by the invention]
In conventional dust collectors, an AC power source is used as a power source, so if the place of use is a place with poor power supply conditions such as a high place or a mountainous area, the dust collector cannot be used or a long extension cord needs to be routed. Or the usability becomes worse.
Moreover, since the power tool uses a battery mounted on the housing as a power source in a DC tool equipped with a DC motor, the weight increases and the workability is reduced. In addition, by using a power source that is separate from the dust collector, the battery capacity may be reduced and the usability may be impaired.
[0004]
Therefore, the invention described in claim 1 is intended to provide a dust collector that is excellent in usability regardless of power supply circumstances, and the invention described in claim 2 is suitably used in combination with the dust collector of claim 1. The purpose is to provide a power tool that is also easy to use.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a battery and a DC motor driven by the power source of the battery and rotating the blower are provided in a housing having a dust collecting chamber. The housing is provided with a dust suction port to which a dust suction hose can be connected and an outlet for external power supply output, so that the battery power can be supplied to the outside, and the DC motor is driven independently by operating the changeover switch. and operation, in which the DC motor in conjunction with the operation of the electrical connection electric power tool is a dust collector comprising a switchable and interlocking operation for driving the outlet.
In order to achieve the above-mentioned object, the invention described in claim 2 includes a DC motor built-in and a power cord that can be plugged into the outlet of the dust collector according to claim 1 and can be connected by an external power source obtained from the outlet. This is an electric tool obtained by driving a DC motor.
In addition to the object of the second aspect, the invention described in claim 3 is one in which a power cord is integrated with a dust suction hose in order to further improve operability and workability when used in combination with a dust collector.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a dust collector 1 and a hammer drill 10 as an electric tool, and FIG. 2 is an electrical circuit diagram thereof. First, the dust collector 1 forms a dust collection chamber inside a vertically long housing 2, and the dust collection chamber. Two batteries 3 and 3 are mounted and connected in parallel as a power source at the lower part of the battery, and a DC motor 4 for rotating a blower (not shown) using the batteries 3 and 3 as a power source is accommodated above the dust collection chamber. ing. The housing 2 is formed with a handle 5 for carrying at the top, and belts 6 and 6 for carrying the back can be attached to the top and left and right sides.
Further, on one side of the housing 2, a dust suction port 7 that communicates with the dust collection chamber is projected, and above the dust suction port 7, an outlet 8 for external power output including a lid 9 is provided. Yes.
[0007]
On the other hand, the hammer drill 10 is capable of imparting any operation of rotation only, batting only, or rotation + hitting to the bit 13 attached to the tip of the housing 11 by driving a DC motor 12 built in the housing 11. Then, the switch 15 provided in the housing 11 is pushed in to operate the switch 15 inside the housing 11.
An attachment 16 extending toward the tip of the bit 13 is attached to the housing 11, and dust suction hoses 17 and 18 are connected between the attachment 16 and the dust suction port 7 of the dust collector 1. A power cord 19 is inserted into the dust suction hoses 17 and 18, and one connector 20 is pulled out to the outside by the hammer drill 10 in the dust suction hose 17, and the other plug 22 is connected to the connector 21 provided in the housing 11. Can be pulled out to the outside by the dust collector 1 in the dust suction hose 18 and can be inserted into the outlets 8 respectively.
[0008]
In the dust collector 1, a changeover switch 23 and a control circuit 24 are provided in the drive circuit of the DC motor 4. The change-over switch 23 is operated by an operation from the outside of the housing 2 so that the power of the batteries 3 and 3 is directly supplied to the DC motor 4 without the control circuit 24, and the batteries 3 and 3 are connected via the control circuit 24. It is possible to switch between an interlocking ON position where power is supplied to the DC motor 4 and an OFF position not connected to any ON position. Further, the control circuit 24 forms a drive circuit for the DC motor 12 with the DC motor 12 on the hammer drill 10 side, the switch 15 and the shunt 25 in a state where the control circuit 24 is electrically connected to the hammer drill 10 by the power cord 19. When the switch 15 of the hammer drill 10 is turned on while the changeover switch 23 is switched to the interlocking ON position, the control circuit 24 supplies power to the batteries 3 and 3 to the DC motor 12 of the hammer drill 10 and the dust collector 1. The DC motor 4 is also supplied with power from the batteries 3 and 3 to drive both of them.
[0009]
In the dust collector 1 configured as described above, when the changeover switch 23 is switched to the manual ON position, the DC motor 4 is independently driven by the power supplied from the batteries 3 and 3 to rotate the blower, and the dust inlet 7 The outside air is taken in and exhausted to the outside of the housing 2 through the dust collection chamber. Since the dust collecting chamber is provided with a filter at the boundary with the blower as is well known, dust or the like sucked together with air is blocked by the filter and stored in the dust collecting chamber. The accumulated dust and the like can be discarded by opening a lid (not shown) provided on the side surface of the housing 2. On the other hand, when the changeover switch 23 is switched to the OFF position, the power supply to the DC motor 4 is cut off and the operation of the dust collector 1 is stopped.
When the changeover switch 23 is switched to the interlock ON position, the dust collector 1 does not operate unless the switch 15 on the hammer drill 10 side electrically connected to the outlet 8 is turned on. That is, as described above, only when the switch 15 is turned on and the hammer drill 10 is activated, the control circuit 24 supplies the power of the batteries 3 and 3 to the DC motor 4 to interlock the dust collector 1. The control circuit 24 is provided with a delay circuit. The operation of the dust collector 1 is continued for several seconds after the operation of the hammer drill 10 is stopped, and dust remaining in the dust suction hoses 17 and 18 is transferred to the dust collection chamber. It is designed to be inhaled.
[0010]
Thus, according to the dust collector 1 of the said form, while the battery 3 and 3 and the DC motor 4 which drives the battery 3 and 3 as a power supply are installed in the housing 2, external power supply provided in the housing 2 Since the power supply for the batteries 3 and 3 can be supplied also to the hammer drill 10 by using the outlet 8 for output, as shown in FIG. Even if it is a place, the dust collector 1 can be used without any trouble. In particular, since a power cord and an extension cord are not connected to the dust collector 1, it is convenient for moving during work and convenience is improved.
[0011]
On the other hand, according to the hammer drill 10 of the said form, the power cord 19 which can be plugged in and connected to the outlet 8 of the dust collector 1 is provided, and the built-in DC motor 12 is driven by the power sources of the batteries 3 and 3 obtained from the outlet 8. As a result, the same battery power source can be used and the usage time with the dust collector 1 becomes substantially equal, and it is not necessary to attach a separate battery as a dedicated connection type with the dust collector 1 and the weight can be reduced. Ten usability is improved.
In particular, here, since the power cord 19 is inserted into the dust suction hoses 17 and 18 connecting the dust collector 1 and the hammer drill 10 to integrate them, the power cord 19 does not need to be separately routed and twisted. Therefore, the operability and workability when used together with the dust collector 1 can be further improved.
[0012]
In the above embodiment, the hammer drill 10 is described as a dedicated type for connection to the dust collector 1, but even if it is a normal battery attachment / detachment type, as shown in FIG. Instead of using the battery adapter 26 that is electrically connected to the switch 15 in the state of being mounted on the housing and also has a connector that can be connected to the connector 20 of the power cord 19, there is no inferiority to the connection-only type. It can be used and the same effect can be obtained. If the dust collector 1 is provided with a DC-DC converter circuit, DC tools having different rated voltages can be used. Furthermore, if the dust collector 1 includes an inverter circuit and outputs an alternating current from the outlet 8, a normal AC tool can be used as well. Of course, the power tool is not limited to a hammer drill, and a maroon saw, grinder, cutter, or the like can also be used.
[0013]
In addition to charging the battery of the dust collector by connecting it to the charger via a cable, the battery itself can be attached to and detached from the housing of the dust collector, and it can be charged by removing it from the dust collector and setting it directly on the charger. good.
In addition, in the above embodiment, the dust collector is described as being used, but not only in such portable use, the same effect can be obtained even when used on the floor, but as in the above embodiment If it is used for a backpack, even if the weight of the dust collector increases due to the mounting of the battery, the burden on the operator is small, and the effect of being able to work without any trouble is obtained.
On the other hand, the integration of the dust suction hose and the power cord is not limited to the one that allows the inside of the dust suction hose to be inserted, but can also be realized by providing a locking means such as a hook that runs along the power cord on the outer surface of the dust suction hose. Also, the form of the power cord is not limited to the above-mentioned separate shape with connectors and plugs at both ends, but can be changed as appropriate, such as a power cord integrally connected to the housing of the electric tool as a dedicated type for connecting to a dust collector There is no problem.
[0014]
【The invention's effect】
According to the first aspect of the present invention, a battery and a DC motor are installed in a housing having a dust collecting chamber, and the dust suction port and an outlet are provided in the housing, so that the battery power can be supplied to the outside. By using the dust collector as described above, the dust collector can be used without any trouble even if the place of use is a place with poor power supply conditions such as a high place or a mountainous area. In particular, since a power cord and an extension cord are not connected to the dust collector, it is convenient for moving during work and convenience is improved.
According to the second aspect of the present invention, the power tool includes a power cord that can be plugged into the outlet of the dust collector according to the first aspect of the present invention, and drives the built-in DC motor by an external power source obtained from the outlet. Since the same battery power source can be used and the usage time with the dust collector becomes substantially equal, it is not necessary to install a separate battery, and the weight is reduced, so that the usability is improved.
According to the invention of claim 3, in addition to the effect of claim 2, by integrating the power cord with the dust suction hose, the operability and workability when used in combination with the dust collector can be further improved. it can.
[Brief description of the drawings]
FIG. 1 is a perspective view of a dust collector and a hammer drill.
FIG. 2 is an electric circuit diagram of a dust collector and a hammer drill.
FIG. 3 is an explanatory view showing a usage state of a dust collector and a hammer drill.
FIG. 4 is a modified example of an electric circuit diagram.
[Explanation of symbols]
1 .... Dust collector, 2 .... Housing, 3 .... Battery, 4, ...... DC motor, 7 .... Dust collector, 8, 21 ..., Outlet, 10 .... Hammer drill, 17, 18, ... Dust collector hose, 19 .. Power cord, 20, 21 .. Connector, 22 .. Plug, 23 .. Changeover switch, 24.

Claims (3)

集塵室を有するハウジング内に、バッテリと、そのバッテリの電源で駆動し、ブロアを回転させる直流モータとを内設する一方、前記ハウジングに、吸塵ホースを接続可能な吸塵口と、外部電源出力用のコンセントとを設けて、前記バッテリの電源を外部に供給可能とすると共に、切替スイッチの操作により、前記直流モータが単独で駆動する単独運転と、前記コンセントに電気的接続された電動工具の作動と連動して前記直流モータが駆動する連動運転とに切替可能としてなる集塵機。Inside the housing having the dust collection chamber, a battery and a DC motor driven by the power source of the battery and rotating the blower are installed, while a dust suction port to which a dust suction hose can be connected to the housing, and an external power output And a power source for the battery that can be supplied to the outside, and by operating the changeover switch, the DC motor is driven alone, and the electric tool electrically connected to the outlet linked operations and formed by a switchable dust collector in which the DC motor is driven in conjunction with the operation. 直流モータを内蔵すると共に、請求項１に記載の集塵機のコンセントに差し込み接続可能な電源コードを備え、前記コンセントから得られる外部電源によって前記直流モータを駆動させてなる電動工具。An electric tool including a DC motor and having a power cord that can be plugged into and connected to an outlet of the dust collector according to claim 1 and driving the DC motor with an external power source obtained from the outlet. 吸塵ホースに電源コードを一体化させた請求項２に記載の電動工具。The power tool according to claim 2, wherein a power cord is integrated with the dust suction hose.
JP2001026015A 2001-02-01 2001-02-01 Dust collector and electric tool Expired - Fee Related JP4021625B2 (en)

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