JPH0614855A - Dust collection meter for vacuum cleaner - Google Patents
Dust collection meter for vacuum cleanerInfo
- Publication number
- JPH0614855A JPH0614855A JP18492391A JP18492391A JPH0614855A JP H0614855 A JPH0614855 A JP H0614855A JP 18492391 A JP18492391 A JP 18492391A JP 18492391 A JP18492391 A JP 18492391A JP H0614855 A JPH0614855 A JP H0614855A
- Authority
- JP
- Japan
- Prior art keywords
- float
- pressure receiving
- atmosphere side
- receiving surface
- cooling air
- 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
- Electric Suction Cleaners (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電気掃除機の集塵メー
ターに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector for an electric vacuum cleaner.
【０００２】[0002]
【従来の技術】従来、この種集塵メーターは、例えば実
開昭55-88754号公報に開示されるものが知られている。2. Description of the Related Art Conventionally, as this kind of dust collecting meter, for example, one disclosed in Japanese Utility Model Laid-Open No. 55-88754 is known.
【０００３】即ち、この集塵メーターは、大気圧と掃除
機本体内のフィルターとファンモーター前部の間の圧力
差により作動するフロートにより前記フィルターの目詰
まりを知らせると共に掃除機本体内のファンモーター部
への冷却風を流入させて過熱を防止する機能も兼ねてい
る。That is, this dust collecting meter notifies the clogging of the filter by a float operated by the atmospheric pressure and the pressure difference between the filter in the cleaner body and the front part of the fan motor, and the fan motor in the cleaner body. It also has the function of allowing cooling air to flow into the section to prevent overheating.
【０００４】一方、上記形式の集塵メーターでは、大気
圧Ｐ0と掃除機本体の内圧Ｐ1との圧力差によりコイルバ
ネで付勢されている透明管体内のフロートを作動さすた
め、フロート立上り風量と、床用吸込口がじゅうたんに
密着して過速され作動し、この後復元する風量との差を
縮めることが設計重要なポイントとなる。もし、この差
が大きいと吸込力があるのに復元が遅れて無駄な掃除機
の運転が持続されることになる。On the other hand, in the dust collector of the above-mentioned type, since the float inside the transparent tube which is biased by the coil spring is activated by the pressure difference between the atmospheric pressure P0 and the internal pressure P1 of the cleaner body, the float rising air volume, It is an important design point that the floor suction port comes into close contact with the carpet and is operated at an excessive speed to reduce the difference with the air volume restored thereafter. If this difference is large, there is suction power, but restoration is delayed and useless vacuum cleaner operation is continued.
【０００５】特に、吸込力の大きい強力モーターを内蔵
した電気掃除機においては、この差を縮めることが技術
的な課題となる。Particularly in an electric vacuum cleaner having a built-in powerful motor having a large suction force, it is a technical subject to reduce this difference.
【０００６】また、実開昭55-153047号公報には、一端
部が掃除機本体の低圧部側と連通し他端部が大気側と連
通する透明管体と、管体内に挿入され管体内を摺動する
フロ−トと、フロートを大気側に押圧付勢するコイルバ
ネと、管体の大気圧側開放端に設けられて空気導入口を
有する蓋体を設けた構成が開示されているが、蓋体の空
気導入口を閉塞する前段圧力受面が無いためフロ−トが
第２図に示される状態まで移動しなければ冷却空気が流
入しないので、モ−タ−の冷却が十分に行われない。さ
らに、この時点でフロ−トに作用する圧力がフロ−トの
前後に起因する制圧から冷却空気流がフロート面に当る
ことに起因する動圧へと変化するため、フロ−トの移動
立ち上がり時と戻り時の風量に大きな差がでる。このた
め、メーターによる正確な集塵量の表示ができないもの
である。また、フロ−トが十分に摺動するためには透明
管とフロートとの内外壁の間に余裕（隙間）が必要であ
り、そのため、フィルタ−が全く目詰まりしていない状
態、即ち、フロートが全く移動していない状態でも冷却
空気が流れるため、掃除機の効率低下となる。Further, in Japanese Utility Model Laid-Open No. 55-153047, a transparent tube having one end communicating with the low pressure side of the cleaner body and the other end communicating with the atmosphere side is inserted into the tube body. Although there is disclosed a configuration in which a float that slides on, a coil spring that presses and urges the float toward the atmosphere side, and a lid body that is provided at the atmospheric pressure side open end of the tube body and that has an air introduction port are provided. Since there is no front pressure receiving surface that closes the air inlet of the lid, the cooling air will not flow unless the float moves to the state shown in FIG. 2, so the motor is cooled sufficiently. I don't know. Furthermore, at this point, the pressure acting on the float changes from the control pressure caused by the front and back of the float to the dynamic pressure caused by the cooling air flow hitting the float surface, so that the movement of the float rises. There is a big difference in the air volume when returning. Therefore, it is impossible to accurately display the amount of dust collected by the meter. Further, in order for the float to slide sufficiently, a clearance (gap) is required between the inner and outer walls of the transparent tube and the float, so that the filter is not clogged at all, that is, the float. Since the cooling air flows even when is not moving at all, the efficiency of the vacuum cleaner is reduced.
【０００７】さらに、実公昭38-5346号公報や実公昭45-
27833号公報には空気導入口を閉塞するフロートが開示
されているが、冷却空気は透明管とフロ−トとの内外壁
間の隙間を流れるのみで、十分な冷却空気を流入させる
ことはできない。また、フィルターの目詰りが激しく、
モ−タ−への冷却空気を多く必要とするときに、両従来
技術では低圧部側と連通する絞り孔14もしくは通気孔８
をフロ−トが閉塞し、冷却空気が全く流入しなくなる。
このため、両従来技術ではモ−タ−冷却用の安全弁など
が別に必要となる。[0007] Furthermore, Japanese Utility Model Publication No. 38-5346 and Japanese Utility Model Publication No. 45-
27833 discloses a float that closes the air inlet, but the cooling air only flows through the gap between the inner and outer walls of the transparent tube and the float, and sufficient cooling air cannot flow in. . Also, the filter is heavily clogged,
When a large amount of cooling air is required for the motor, both prior arts use the throttle hole 14 or the vent hole 8 communicating with the low pressure side.
The float is closed, and no cooling air flows in.
For this reason, both prior arts require a separate safety valve for motor cooling.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、上記欠点に
鑑みなされたもので、フィルターの目詰まり状態の目視
が容易で、しかも応答性が良くモーターの冷却効率も向
上させた電気掃除機の集塵メーターを提供することを課
題とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and provides an electric vacuum cleaner in which the clogging of a filter can be easily seen, and the response is good and the cooling efficiency of a motor is improved. An object is to provide a dust collection meter.
【０００９】[0009]
【課題を解決するための手段】本発明の電気掃除機の集
塵メーターは、一端部が掃除機本体の低圧側と連通し他
端部が大気側と連通する透明管体と、該管体内に挿入さ
れ管体内を摺動するフロートと、該フロートを大気側に
押圧付勢するバネと、前記管体の大気側開放端に設けら
れて空気導入口を有する蓋体とより構成し、前記フロー
トには前記空気導入口を閉塞するとともに流入空気によ
り圧力を受ける前段圧力受面と、該前段圧力受面の下流
側で前段圧力受面との間に冷却空気流入口を介在して設
けた後段圧力受面を設けたものである。A dust collecting meter for an electric vacuum cleaner according to the present invention includes a transparent tube body having one end communicating with a low pressure side of a cleaner body and the other end communicating with an atmosphere side, and the inside of the tube body. A float that is inserted into the pipe and slides in the pipe, a spring that presses and urges the float toward the atmosphere, and a lid that is provided at the air-side open end of the pipe and has an air inlet, The float is provided with a cooling air inflow port interposed between the front pressure receiving surface that closes the air inlet and receives pressure from the inflowing air, and between the front pressure receiving surface on the downstream side of the front pressure receiving surface. A rear pressure receiving surface is provided.
【００１０】さらに本発明の電気掃除機の集塵メーター
は、フロ−トは色調のことなる２部材を接合してなるこ
とを特徴とするものである。Further, the dust collecting meter of the vacuum cleaner of the present invention is characterized in that the float is formed by joining two members having different color tones.
【００１１】[0011]
【作用】本発明によれば、フロートは大気側に前段圧力
受面と後段圧力受面の２段受面を有し且つ両受面間に冷
却空気流入口を設けているため、フロートが移動し始め
ると同時に空気導入口から流入した空気が常にフロート
の前段圧力受面及び後段圧力受面に作用して、常時圧力
受面に流入空気量に比例した圧力が作用する。また、フ
ロートの移動後は、常に冷却空気がモーター部へ導入さ
れ、モーターの過熱を防止する。According to the present invention, since the float has the two-stage receiving surfaces of the front-stage pressure receiving surface and the rear-stage pressure receiving surface on the atmosphere side, and the cooling air inflow port is provided between both receiving surfaces, the float moves. Simultaneously with the start of the operation, the air flowing in from the air introduction port always acts on the front pressure receiving surface and the rear pressure receiving surface of the float, and a pressure proportional to the inflowing air amount always acts on the pressure receiving surface. Further, after the float moves, cooling air is always introduced into the motor section to prevent the motor from overheating.
【００１２】さらに、フロ−トが移動することにより、
２色のフロートが外部から目視できる。Further, by moving the float,
The two-color float is visible from the outside.
【００１３】[0013]
【実施例】以下本発明の構成を図に基ずいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings.
【００１４】１は掃除機本体で、後部に緩衝体２を介し
てファンモーター部３を内蔵すると共に、前部には吸込
口４と連通してフィルター５が設けられている。前記掃
除機本体１の上部にはフィルター５の目詰まり状態を表
示すると共に、フィルター目詰まり時にファンモーター
部３へ冷却空気流を導入する機能を兼ね備えた集塵メー
ター６が設けられている。Reference numeral 1 denotes a cleaner body, which has a fan motor portion 3 built in at a rear portion thereof via a cushioning member 2, and a filter 5 provided at the front portion so as to communicate with a suction port 4. A dust collecting meter 6 is provided on the upper part of the cleaner body 1 for displaying a clogging state of the filter 5 and for introducing a cooling air flow into the fan motor section 3 when the filter is clogged.
【００１５】前記集塵メーター６は、一端部がフィルタ
ー５とファンモーター部３の間の低圧空間７に連通し、
他端部が大気側に連通する断面矩形状の合成樹脂製透明
管体８と、該管体８に挿入され大気側圧力受面９を有し
た断面矩形状のフロート10と、該フロート10を大気側に
押圧付勢するコイルバネ11とにより構成している。One end of the dust collecting meter 6 communicates with the low pressure space 7 between the filter 5 and the fan motor unit 3,
The transparent resin-made transparent tube body 8 having a rectangular cross-section whose other end communicates with the atmosphere side, the float 10 having a rectangular cross-section inserted into the tube body 8 and having the atmosphere-side pressure receiving surface 9, and the float 10. It is configured by a coil spring 11 that presses and biases to the atmosphere side.
【００１６】更に、前記集塵メーター６の構造を図２乃
至図14に従って詳細に説明する。Further, the structure of the dust collecting meter 6 will be described in detail with reference to FIGS. 2 to 14.
【００１７】前記透明管体８は、図４、図５の底面図及
び右側面図より明らかなように、一端部の開口部12には
コイルバネ11の案内を兼ねる補強リブ13と垂直壁面14に
は前記コイルバネ11のバネ受けリブ15が一体形成されて
いる。As is clear from the bottom and right side views of FIGS. 4 and 5, the transparent tube 8 has a reinforcing rib 13 also serving as a guide for the coil spring 11 and a vertical wall surface 14 in the opening 12 at one end. The spring receiving rib 15 of the coil spring 11 is integrally formed.
【００１８】而して、前記フロート10が、図２乃至図３
に示すごとくコイルバネ11のバネ受け部16を有し且つこ
のバネ11にて大気側に押圧付勢されるグリーン色のフロ
ート部Ｇ10ａと、該フロート部Ｇ10ａに嵌合接続され大
気側圧力受面９として前段圧力受面９ａ及び後段圧力受
面９ｂの２段受面を有し、且つ両受面９ａ、９ｂの間に
冷却空気流入口17を設けたレッド色のフロート部Ｒ10ｂ
との２部材により構成されている。Thus, the float 10 is shown in FIGS.
As shown in FIG. 5, a green float portion G10a having a spring receiving portion 16 of a coil spring 11 and biased by the spring 11 toward the atmosphere side, and an atmosphere side pressure receiving surface 9 fitted and connected to the float portion G10a. As a red-colored float portion R10b having a two-stage receiving surface including a front-stage pressure receiving surface 9a and a rear-stage pressure receiving surface 9b, and having a cooling air inlet 17 provided between the two receiving surfaces 9a and 9b.
And two members.
【００１９】また、前記透明管体８の大気側開口部に
は、空気導入口18を有したパッキン（蓋体）19を嵌合し
て前記フロート部Ｒ10ｂの当接面を形成している。A packing (cover) 19 having an air inlet 18 is fitted into the opening of the transparent tube 8 on the atmosphere side to form a contact surface of the float R10b.
【００２０】上記の構成によりフィルター５が目詰まり
していないときには、図２の如く、冷却用空気の吸入を
防ぎ、目詰まり時には、図３に示す矢印の冷却空気が流
入する。即ち、フロート10の作動により本体カバー20の
窓口21より最初はグリーン色のフロ−ト部Ｇ10ａが、そ
してフィルター目詰まり時には、レッド色のフロート部
Ｒ10ｂが夫々目視できる。With the above construction, when the filter 5 is not clogged, the intake of cooling air is prevented as shown in FIG. 2, and when clogged, the cooling air indicated by the arrow in FIG. 3 flows in. That is, when the float 10 is actuated, the green-colored float portion G10a can be seen from the window 21 of the main body cover 20, and the red-colored float portion R10b can be seen when the filter is clogged.
【００２１】尚、上記の説明において、フロート10の立
上り風量とは、フィルター５の目詰まりに応じて（Ｐ0
−Ｐ1）の差圧により透明管体８のフロート10が立上る
時（移動し始めるとき）の掃除機本体１の吸込風量（平
方メートル／分）を表し、フロート10の戻り時の風量と
は透明管体８のフロート10が掃除機の使用時床用吸込口
をビニール袋等で閉鎖されてフロート10が作動し、目詰
まり状態となり、その後ビニール袋を取り除いてフロー
ト10が元の状態に戻る時の掃除機本体１の吸込風量を示
す。Incidentally, in the above description, the rising air volume of the float 10 depends on the clogging of the filter 5 (P0
-P1) represents the suction air volume (square meters / minute) of the cleaner body 1 when the float 10 of the transparent tube 8 rises (when it starts moving) due to the differential pressure, and is transparent to the air volume when the float 10 returns. When the float 10 of the tube 8 is used with a vacuum cleaner, the floor suction port is closed with a vinyl bag or the like to activate the float 10 and become clogged, and then the vinyl bag is removed and the float 10 returns to its original state. 2 shows the suction air volume of the cleaner body 1.
【００２２】特に、フィルター５の目詰まり時にファン
モーター部３への冷却風を流入させる場合においては、
この吸入空気流の影響によりフロート10の戻り時の風量
が高くなってしまうが、本発明においては、フロート10
の大気側圧力受面９と前段圧力受面９ａと後段圧力受面
９ｂの２段構成とすると共に両受面９ａ、９ｂの間に冷
却空気流入口17を設けることで立上り時と戻り時の風量
を近づけることができる。In particular, when the cooling air flows into the fan motor section 3 when the filter 5 is clogged,
Due to the influence of this intake air flow, the air volume when the float 10 returns increases, but in the present invention, the float 10
The atmosphere side pressure receiving surface 9, the front pressure receiving surface 9a and the rear pressure receiving surface 9b have a two-stage structure, and a cooling air inlet 17 is provided between both the receiving surfaces 9a and 9b to prevent a rise and a return. The air volume can be made closer.
【００２３】[0023]
【発明の効果】本発明による電気掃除機の集塵メータ
は、上述の如く構成したので、フィルターの目詰まりに
よりフロートが移動し始めると同時に、空気導入口から
流入した空気が冷却空気流入口を通ってモーター側へ流
れるので、モーターの過熱防止が図られる。また、空気
導入口から流入した空気は、常に前後段圧力受面に当っ
て流れるので、フロートは流入空気の量に比例した圧力
を受け、フロートの動きがスムーズなものとなる等の効
果を奏する。Since the dust collector of the electric vacuum cleaner according to the present invention is constructed as described above, the float starts to move due to the clogging of the filter, and at the same time, the air flowing in from the air introduction port flows into the cooling air inflow port. Since it flows through to the motor side, overheating of the motor is prevented. Further, since the air flowing in from the air inlet always flows by hitting the front and rear pressure receiving surfaces, the float receives a pressure proportional to the amount of the inflowing air, and the float moves smoothly. .
【図１】本発明一実施例の概略構成を示す電気掃除機の
説明図である。FIG. 1 is an explanatory diagram of an electric vacuum cleaner showing a schematic configuration of an embodiment of the present invention.
【図２】同集塵メーターの通常時における要部断面図で
ある。FIG. 2 is a sectional view of a main part of the dust collection meter in a normal state.
【図３】同集塵メーターの目詰まり時における要部断面
図である。FIG. 3 is a cross-sectional view of essential parts when the dust collecting meter is clogged.
【図４】同集塵メータを構成する透明管体の底面図であ
る。FIG. 4 is a bottom view of a transparent tube body that constitutes the dust collecting meter.
【図５】同透明管体の右側面図である。FIG. 5 is a right side view of the transparent tube body.
【図６】同フロート部Ｇの左側面図である。FIG. 6 is a left side view of the float part G.
【図７】同フロート部Ｇの断面図である。FIG. 7 is a cross-sectional view of the float part G.
【図８】同フロート部Ｇの正面図である。FIG. 8 is a front view of the float portion G.
【図９】同フロート部Ｇの右側面図である。FIG. 9 is a right side view of the float portion G.
【図１０】同フロート部Ｇの底面図である。FIG. 10 is a bottom view of the float part G.
【図１１】同フロート部Ｒの断面図である。FIG. 11 is a cross-sectional view of the float portion R.
【図１２】同フロート部Ｒの正面図である。FIG. 12 is a front view of the float portion R.
【図１３】同フロート部Ｒの右側面図である。FIG. 13 is a right side view of the float portion R.
【図１４】同フロート部Ｒの底面図である。FIG. 14 is a bottom view of the float portion R.
１ 掃除機本体 ８ 透明管体 ９ 大気側圧力受面 ９ａ 前段圧力受面 ９ｂ 後段圧力受面 10 フロート 10ａ フロート部Ｇ 10ｂ フロート部Ｒ 11 コイルバネ（バネ） 17 冷却空気流入口 1 Vacuum cleaner main body 8 Transparent tube body 9 Atmospheric pressure receiving surface 9a Front pressure receiving surface 9b Rear pressure receiving surface 10 Float 10a Float part G 10b Float part 11 Coil spring (spring) 17 Cooling air inlet
Claims (2)
端部が大気側と連通する透明管体と、該管体内に挿入さ
れ管体内を摺動するフロートと、該フロートを大気側に
押圧付勢するバネと、前記管体の大気側開放端に設けら
れて空気導入口を有する蓋体とより構成し、前記フロー
トには前記空気導入口を閉塞するとともに流入空気によ
り圧力を受ける前段圧力受面と、該前段圧力受面の下流
側で前段圧力受面との間に冷却空気流入口を介在して設
けた後段圧力受面を設けたことを特徴とする電気掃除機
の集塵メータ−。1. A transparent tube having one end communicating with the low-pressure side of the cleaner body and the other end communicating with the atmosphere side, a float inserted into the tube and sliding in the tube, and the float being exposed to the atmosphere. And a lid having an air inlet provided at the air-side open end of the tube body, and the float is closed by the air inlet and pressure is applied by the inflowing air. An electric vacuum cleaner comprising: a front-stage pressure receiving surface to be received; and a rear-stage pressure receiving surface provided with a cooling air inflow port interposed between the front-stage pressure receiving surface and a front-stage pressure receiving surface downstream of the front-stage pressure receiving surface. Dust collector-
してなることを特徴とする請求項１記載の電気掃除機の
集塵メーター。2. The dust collecting meter for an electric vacuum cleaner according to claim 1, wherein the float is formed by joining two members having different color tones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3184923A JPH07106193B2 (en) | 1991-07-24 | 1991-07-24 | Vacuum cleaner dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3184923A JPH07106193B2 (en) | 1991-07-24 | 1991-07-24 | Vacuum cleaner dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0614855A true JPH0614855A (en) | 1994-01-25 |
| JPH07106193B2 JPH07106193B2 (en) | 1995-11-15 |
Family
ID=16161699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3184923A Expired - Lifetime JPH07106193B2 (en) | 1991-07-24 | 1991-07-24 | Vacuum cleaner dust collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07106193B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005199170A (en) * | 2004-01-15 | 2005-07-28 | Showa Denki Kk | Clogging detector of oil mist collecting filter, and oil mist separator using the detector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6077555U (en) * | 1983-11-02 | 1985-05-30 | 株式会社日立製作所 | Vacuum cleaner clogging indicator |
| JPS6293953U (en) * | 1985-11-30 | 1987-06-16 |
-
1991
- 1991-07-24 JP JP3184923A patent/JPH07106193B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6077555U (en) * | 1983-11-02 | 1985-05-30 | 株式会社日立製作所 | Vacuum cleaner clogging indicator |
| JPS6293953U (en) * | 1985-11-30 | 1987-06-16 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005199170A (en) * | 2004-01-15 | 2005-07-28 | Showa Denki Kk | Clogging detector of oil mist collecting filter, and oil mist separator using the detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07106193B2 (en) | 1995-11-15 |
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