JP2013078703A - Dust collector - Google Patents

Dust collector Download PDF

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Publication number
JP2013078703A
JP2013078703A JP2011218714A JP2011218714A JP2013078703A JP 2013078703 A JP2013078703 A JP 2013078703A JP 2011218714 A JP2011218714 A JP 2011218714A JP 2011218714 A JP2011218714 A JP 2011218714A JP 2013078703 A JP2013078703 A JP 2013078703A
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filter
primary filter
elastic body
cover
dust collector
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JP5765175B2 (en
Inventor
Shinji Kawamata
伸治 川又
Daisuke Kakegawa
大輔 掛川
Yoshimasa Hayama
芳雅 羽山
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Koki Holdings Co Ltd
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Hitachi Koki Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a dust collector which has a higher capacity to brush away dust.SOLUTION: In the dust collector 1 provided with a tank 6 which has a suction port 6a to suck dust, a pouched primary filter 7 installed within the tank 6, a cover 8b, 8c adjusted at the inner side of the primary filter 7, a fan 2a installed at the upper side of the cover 8b, 8c and a motor 2 to drive the fan 2a, an elastomer 9 is installed at the inner side of the primary filter 7 and yet at the lower side of the cover 8b, 8c, so that the elastomer is movable to the up and down directions.

Description

本発明は、フィルタに付着した粉塵を払い落とす除塵機能を備えた集塵機に関する。   The present invention relates to a dust collector having a dust removing function for removing dust adhering to a filter.

特許文献1に示された集塵機は、フィルタの内側面に負圧によって弾性変形するフィルタケージを設け、運転を停止するとフィルタケージが復元してフィルタを膨張させフィルタ表面に堆積した粉塵を払い落とすものであった。   The dust collector shown in Patent Document 1 is provided with a filter cage that is elastically deformed by negative pressure on the inner surface of the filter, and when the operation is stopped, the filter cage is restored to expand the filter and to remove dust accumulated on the filter surface. Met.

特開2002−045318号公報JP 2002-045318 A

しかし特許文献1に示された集塵機では、フィルタケージがフィルタに固定されているため、フィルタの膨張の大きさはフィルタケージの弾性変形の大きさとほぼ同等程度でしかなく、粉塵を払い落とす効果は小さかった。   However, in the dust collector shown in Patent Document 1, since the filter cage is fixed to the filter, the magnitude of the expansion of the filter is only about the same as the magnitude of the elastic deformation of the filter cage, and the effect of dusting off is not effective. It was small.

本発明の目的は、上記の問題を解決し、粉塵を払い落とす能力がより高い集塵機を提供することにある。   An object of the present invention is to solve the above-described problems and provide a dust collector having a higher ability to remove dust.

上記目的を達成するため、粉塵を吸引するための吸込口を有するタンクと、該タンク内に設けられた袋状の一次フィルタと、該一次フィルタの内側に設けられたカバーと、該カバーの上方に設けられたファン及び該ファンを駆動するモータと、を有する集塵機において、該一次フィルタの内側であって該カバーの下方に、弾性体を上下方向に移動可能に設けた。   To achieve the above object, a tank having a suction port for sucking dust, a bag-like primary filter provided in the tank, a cover provided inside the primary filter, and an upper part of the cover In the dust collector having a fan and a motor for driving the fan, an elastic body is provided inside the primary filter and below the cover so as to be movable in the vertical direction.

また、該カバーで二次フィルタを支持し、該二次フィルタ及び該カバーの下方に該弾性体を配置し、該二次フィルタの外周面と該一次フィルタの内周面とが互いに向かい合うよう構成する。   Further, the secondary filter is supported by the cover, the elastic body is disposed below the secondary filter and the cover, and the outer peripheral surface of the secondary filter and the inner peripheral surface of the primary filter face each other. To do.

また該弾性体の一部を繰り抜いて繰り抜き部を形成し、該一次フィルタが該弾性体の内側へと変形できるよう構成する。   Further, a part of the elastic body is drawn out to form a drawing-out portion so that the primary filter can be deformed to the inside of the elastic body.

請求項1記載の発明によれば、一次フィルタの内部であってカバーの下方に、弾性体を上下方向に移動可能に設けたので、運転時は負圧によってフィルタが収縮して弾性体を上方へ移動させるとともに圧縮させ、運転を停止させると弾性体が膨張するとともに下方へと落下しフィルタに勢いよく衝突する。この衝撃によりフィルタは大きく変形し、フィルタ表面に堆積していた粉塵を強く払い落とすことが可能となる。   According to the first aspect of the present invention, since the elastic body is provided inside the primary filter and below the cover so as to be movable in the vertical direction, the filter contracts due to negative pressure during operation and the elastic body is moved upward. When the operation is stopped, the elastic body expands and falls downward to collide with the filter vigorously. Due to this impact, the filter is greatly deformed, and the dust accumulated on the filter surface can be strongly wiped off.

請求項2記載の発明によれば、運転時に弾性体が圧縮されても弾性体と二次フィルタとが接触しにくくなり、弾性体によって空気が流れ難くなるのを防ぐことができる。   According to invention of Claim 2, even if an elastic body is compressed at the time of a driving | operation, it becomes difficult to contact an elastic body and a secondary filter, and it can prevent that it becomes difficult to flow air with an elastic body.

請求項3記載の発明によれば、弾性体を追加してもタンクの容量を確保することができる。   According to the third aspect of the invention, the capacity of the tank can be secured even if an elastic body is added.

本発明に係る集塵機の停止時の状態を示す全体断面図Whole sectional view which shows the state at the time of the stop of the dust collector which concerns on this invention 本発明に係る集塵機の運転時の状態を示す全体断面図Whole sectional view showing a state during operation of the dust collector according to the present invention

本発明に係る集塵機1について、図1及び図2を参照しながら説明する。   The dust collector 1 which concerns on this invention is demonstrated referring FIG.1 and FIG.2.

集塵機1の上部には、モーター2と、モーター2によって回転駆動されるファン2aと、モーター2の起動及び停止を制御するためのスイッチ3を備えたヘッド部4が設けられている。ヘッド部4の下部には、吸引した粉塵5を貯めるための上部が開口したタンク6が設けられている。タンク6の側面には、粉塵5を搬送するための図示しないダクトホースが接続される吸込口6aが設けられている。   On the upper part of the dust collector 1, there is provided a head portion 4 having a motor 2, a fan 2 a that is rotationally driven by the motor 2, and a switch 3 for controlling the start and stop of the motor 2. A tank 6 having an upper opening for storing the sucked dust 5 is provided at the lower part of the head part 4. A suction port 6 a to which a duct hose (not shown) for conveying the dust 5 is connected is provided on the side surface of the tank 6.

タンク6の上部では、上端に開口部を有する一次フィルタ7がタンク6とヘッド部4との間に挟まれるようにして保持されている。一次フィルタ7の上端には開口部を形成するフック部7bが設けられ、フック部7bの下方に袋状の濾布材7a部が連続して設けられている。   At the upper part of the tank 6, a primary filter 7 having an opening at the upper end is held so as to be sandwiched between the tank 6 and the head part 4. A hook portion 7b that forms an opening is provided at the upper end of the primary filter 7, and a bag-shaped filter cloth material 7a is continuously provided below the hook portion 7b.

一次フィルタ7の内側には、トップカバー8bとボトムカバー8cとによって挟まれるように支持された二次フィルタ8aが設けられている。二次フィルタ8aは蛇腹状の濾布からなり、上方から見てモータ−2の回転軸を中心とする環状を構成するよう形成されている。二次フィルタ8a、トップカバー8b及びボトムカバー8cで二次フィルタユニット8を構成している。そしてトップカバー8b及びボトムカバー8cが特許請求の範囲に記載したカバーとして作用する。フック部7b及びトップカバー8bがタンク6とヘッド部4との間に挟まれることにより一次フィルタ7と二次フィルタユニット8がタンク6に対して保持されている。   Inside the primary filter 7, a secondary filter 8a supported so as to be sandwiched between the top cover 8b and the bottom cover 8c is provided. The secondary filter 8a is made of a bellows-like filter cloth, and is formed so as to form an annular shape around the rotation axis of the motor-2 as viewed from above. The secondary filter unit 8 is constituted by the secondary filter 8a, the top cover 8b, and the bottom cover 8c. The top cover 8b and the bottom cover 8c function as the covers described in the claims. The primary filter 7 and the secondary filter unit 8 are held with respect to the tank 6 by the hook portion 7 b and the top cover 8 b being sandwiched between the tank 6 and the head portion 4.

一次フィルタ7の内側であってボトムカバー8cの下方には、通気性のあるスポンジ等からなる弾性体9が設けられている。弾性体9は上方から環状に形成されており、一次フィルタとボトムカバー8cのいずれにも固定されず、自由に上下方向にも横方向にも移動できるよう一次フィルタ7の内側に収容されている。   An elastic body 9 made of a breathable sponge or the like is provided inside the primary filter 7 and below the bottom cover 8c. The elastic body 9 is formed in an annular shape from above, and is not fixed to either the primary filter or the bottom cover 8c, but is accommodated inside the primary filter 7 so as to be freely movable in the vertical direction and the horizontal direction. .

上記のように構成された集塵機1を運転する場合、スイッチ3をオンするとモーター2が起動し、ファン2aの回転によりタンク6の内部が負圧となり、ダクトホースから粉塵5を含む空気がタンク6の内部に吸引される。空気はダクトホースから吸込口6aを経てタンク6の内部に吸引され、一次フィルタ7と二次フィルタ8aを通過して集塵機1の外部に排出される。空気が一次フィルタ7を通過するときに粉塵5が一次フィルタ7の外側に付着してろ過され、さらに空気が二次フィルタ8aを通過するときに残りの粉塵5が二次フィルタ8aの外側に付着してろ過される。   When the dust collector 1 configured as described above is operated, when the switch 3 is turned on, the motor 2 is started, the inside of the tank 6 becomes negative pressure by the rotation of the fan 2a, and the air containing the dust 5 from the duct hose becomes the tank 6 Sucked into the inside. Air is sucked into the tank 6 from the duct hose through the suction port 6a, passes through the primary filter 7 and the secondary filter 8a, and is discharged to the outside of the dust collector 1. When the air passes through the primary filter 7, the dust 5 adheres to the outside of the primary filter 7 and is filtered, and when the air passes through the secondary filter 8a, the remaining dust 5 adheres to the outside of the secondary filter 8a. And filtered.

一次フィルタ7に付着した粉塵5の量が多くなってくると、一次フィルタ7が目詰まりして空気が一次フィルタ7を通過し難くなり、空気が通過するときの抵抗により一次フィルタ7が内側に引っ張られて収縮するようになる。一次フィルタ7が収縮しようとする力により弾性体9が上方へ持ち上げられてボトムカバー8cの下面に接触し、弾性体9はボトムカバー8cと一次フィルタ7との間で挟まれて圧縮される。   When the amount of dust 5 adhering to the primary filter 7 increases, the primary filter 7 becomes clogged and it becomes difficult for air to pass through the primary filter 7, and the primary filter 7 is moved inward by resistance when air passes. Pulled to contract. The elastic body 9 is lifted upward by the force of the primary filter 7 to contract and comes into contact with the lower surface of the bottom cover 8c. The elastic body 9 is sandwiched between the bottom cover 8c and the primary filter 7 and compressed.

そしてスイッチ3をオフして運転を停止させると、一次フィルタ7を通過しようとする空気の流れがなくなり、一次フィルタ7を内側に引っ張る力がなくなる。そして弾性体9は圧縮された状態から開放されて下方に向かって膨張するとともに、自重により下方に向かって勢いよく落下を始める。これに伴い一次フィルタ7も収縮した状態から開放されて下方に向かって伸び、元の状態まで戻ったころにさらに弾性体9が勢いよく一次フィルタ7に衝突して一次フィルタをさらに大きく膨張させる。そしてその反動により一次フィルタ7は再び収縮するとともに弾性体9を上方へと持ち上げ、一次フィルタ7があたかもトランポリンのように弾み、一次フィルタ7に付着していた粉塵5を強く払い落とすことができる。   When the operation is stopped by turning off the switch 3, there is no flow of air trying to pass through the primary filter 7, and there is no force to pull the primary filter 7 inward. Then, the elastic body 9 is released from the compressed state and expands downward, and begins to drop vigorously downward due to its own weight. Along with this, the primary filter 7 is also released from the contracted state and extended downward, and when the primary filter 7 returns to its original state, the elastic body 9 further strikes the primary filter 7 and expands the primary filter further. Then, the primary filter 7 is contracted again by the reaction, and the elastic body 9 is lifted upward so that the primary filter 7 bounces like a trampoline and the dust 5 attached to the primary filter 7 can be strongly wiped off.

なお弾性体9は二次フィルタ8aよりも下方に配置されており、収縮してもボトムカバー8cが障壁となって二次フィルタ8aに接触し難くなっている。一次フィルタ7と弾性体9が収縮した状態でも二次フィルタ8aの外周が一次フィルタ7と向かい合うことになり、空気の流れが弾性体9によって遮られることがない。   The elastic body 9 is disposed below the secondary filter 8a, and even when contracted, the bottom cover 8c serves as a barrier and is difficult to contact the secondary filter 8a. Even when the primary filter 7 and the elastic body 9 are contracted, the outer periphery of the secondary filter 8 a faces the primary filter 7, and the air flow is not blocked by the elastic body 9.

また弾性体9は上方から見て環状であり中央が繰り抜かれて繰り抜き部9aを形成しているので、図2に示すように、弾性体9の中央においては一次フィルタ7は弾性体9よりもさらに内側へと収縮することになり、弾性体9の追加によるタンク9の容量低減を抑えることができる。   Further, since the elastic body 9 is annular when viewed from above and the center is drawn out to form a drawn-out portion 9a, the primary filter 7 is more elastic than the elastic body 9 at the center of the elastic body 9, as shown in FIG. Is further contracted inward, and the capacity reduction of the tank 9 due to the addition of the elastic body 9 can be suppressed.

1 本体
2 モーター
2a ファン
3 スイッチ
4 ヘッド部
5 粉塵
6 タンク
6a 吸込口
7 一次フィルタ
7a 濾布
7b フック部
8 二次フィルタユニット
8a 二次フィルタ
8b トップカバー
8c ボトムカバー
9 弾性体
9a 繰り抜き部
DESCRIPTION OF SYMBOLS 1 Main body 2 Motor 2a Fan 3 Switch 4 Head part 5 Dust 6 Tank 6a Suction port 7 Primary filter 7a Filter cloth 7b Hook part 8 Secondary filter unit 8a Secondary filter 8b Top cover 8c Bottom cover 9 Elastic body 9a Pull-out part

Claims (3)

粉塵を吸引するための吸込口を有するタンクと、
該タンク内に設けられた袋状の一次フィルタと、
該一次フィルタの内側に設けられたカバーと、
該カバーの上方に設けられたファン及び該ファンを駆動するモータと、
を有する集塵機において、
該一次フィルタの内側であって該カバーの下方に、弾性体を上下方向に移動可能に設けたことを特徴とする集塵機。
A tank having a suction port for sucking dust;
A bag-like primary filter provided in the tank;
A cover provided inside the primary filter;
A fan provided above the cover and a motor for driving the fan;
In a dust collector having
A dust collector characterized in that an elastic body is provided inside the primary filter and below the cover so as to be movable in the vertical direction.
該カバーで二次フィルタを支持し、該二次フィルタ及び該カバーの下方に該弾性体を配置し、該二次フィルタの外周面と該一次フィルタの内周面とが互いに向かい合うよう構成したことを特徴とする請求項1記載の集塵機。 The secondary filter is supported by the cover, the elastic body is disposed below the secondary filter and the cover, and the outer peripheral surface of the secondary filter and the inner peripheral surface of the primary filter are configured to face each other. The dust collector according to claim 1. 該弾性体の一部を繰り抜いて繰り抜き部を形成し、該一次フィルタが該弾性体の内側へと変形できるよう構成したことを特徴とする請求項1記載の集塵機。 2. The dust collector according to claim 1, wherein a part of the elastic body is drawn out to form a drawing-out portion so that the primary filter can be deformed to the inside of the elastic body.
JP2011218714A 2011-09-30 2011-09-30 Dust collector Active JP5765175B2 (en)

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JP5765175B2 JP5765175B2 (en) 2015-08-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015186780A (en) * 2014-03-26 2015-10-29 日立工機株式会社 dust collector
CN108451442A (en) * 2017-02-17 2018-08-28 株式会社牧田 Dust catcher
JP2018164911A (en) * 2018-07-18 2018-10-25 工機ホールディングス株式会社 Dust collector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50102174A (en) * 1974-01-16 1975-08-13
JPS5154467U (en) * 1974-10-11 1976-04-26
US5690710A (en) * 1996-08-13 1997-11-25 Stephan; Paul F. Self-cleaning filter
JP2010201195A (en) * 2010-06-07 2010-09-16 Makita Corp Dust collector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50102174A (en) * 1974-01-16 1975-08-13
JPS5154467U (en) * 1974-10-11 1976-04-26
US5690710A (en) * 1996-08-13 1997-11-25 Stephan; Paul F. Self-cleaning filter
JP2010201195A (en) * 2010-06-07 2010-09-16 Makita Corp Dust collector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015186780A (en) * 2014-03-26 2015-10-29 日立工機株式会社 dust collector
CN108451442A (en) * 2017-02-17 2018-08-28 株式会社牧田 Dust catcher
US11134816B2 (en) 2017-02-17 2021-10-05 Makita Corporation Dust collector
JP2018164911A (en) * 2018-07-18 2018-10-25 工機ホールディングス株式会社 Dust collector

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