JPH03268726A - Dust collection quantity display device for vacuum cleaner - Google Patents
Dust collection quantity display device for vacuum cleanerInfo
- Publication number
- JPH03268726A JPH03268726A JP7043490A JP7043490A JPH03268726A JP H03268726 A JPH03268726 A JP H03268726A JP 7043490 A JP7043490 A JP 7043490A JP 7043490 A JP7043490 A JP 7043490A JP H03268726 A JPH03268726 A JP H03268726A
- Authority
- JP
- Japan
- Prior art keywords
- pointer
- valve body
- dust
- cylinder
- dust collection
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 68
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 7
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000009825 accumulation Methods 0.000 abstract description 4
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 2
- 239000005061 synthetic rubber Substances 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電気掃除機の集塵量表示装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dust collection amount display device for a vacuum cleaner.
従来の技術
従来この種の表示装置のうち、機械式のものには第４図
および第６図に示すようなものがある。2. Description of the Related Art Among conventional display devices of this type, mechanical ones include those shown in FIGS. 4 and 6.
図に示すように、表示装置１は、有底筒状の指針２と、
指針２を底方向にバネ付勢する圧縮指針バネ３と、指針
２の外底面が当接し、指針筒６の一端に取着された通孔
４を有する指針蓋５と、指針２を軸方向に滑動自在に内
装する透明で筒形の指針筒６と、指針筒６の他端と集塵
室７を連通する連通管８とからなシ、電気掃除機本体９
の集塵室７を上方よシ覆う前本体１ｏの凹部１１に取着
され、蓋板１２に設けられた表示窓１３より指針２が外
部より見えるよう構成されている。As shown in the figure, the display device 1 includes a bottomed cylindrical pointer 2,
A compression pointer spring 3 that spring-biases the pointer 2 in the bottom direction, a pointer cover 5 having a through hole 4 attached to one end of the pointer barrel 6, with which the outer bottom surface of the pointer 2 comes into contact, and a pointer cover 5 that urges the pointer 2 in the axial direction. A transparent, cylindrical pointer tube 6 that is slidably installed inside the body, a communication tube 8 that communicates the other end of the pointer tube 6 with a dust collection chamber 7, and a vacuum cleaner body 9.
The pointer 2 is attached to a recess 11 of the front body 1o that covers the dust collection chamber 7 from above, and is configured to be visible from the outside through a display window 13 provided in the cover plate 12.
上記構成において電気掃除機を運転して集塵袋１４内に
塵埃が蓄積されると、その空気抵抗により集塵室７内の
圧力が塵埃の蓄積量に従って徐々に大気圧より低下し、
所定の圧力以下に下がると指針２に作用する真空圧によ
シ、指針２は指針バネ３のバネ付勢力に抗して連通管８
側に滑動する。In the above configuration, when the vacuum cleaner is operated and dust accumulates in the dust collection bag 14, the pressure inside the dust collection chamber 7 gradually decreases from atmospheric pressure due to the air resistance according to the amount of accumulated dust.
When the pressure drops below a predetermined level, the vacuum pressure acting on the pointer 2 causes the pointer 2 to move against the spring biasing force of the pointer spring 3 and move to the communication tube 8.
Slide to the side.
この指針２の変位は表示窓１３よシ見ることができるの
で使用者は塵埃の廃棄時を認識することができるもので
ある。Since the displacement of the pointer 2 can be seen through the display window 13, the user can recognize when it is time to discard the dust.
発明が解決しようとする課題
このような従来の電気掃除機の集塵量表示装置では、指
針２が連通管８側に少しでも変位すると通孔４および指
針２と指針筒６との間隙を通じて大気が集塵室γ内に流
入するため、電気掃除機の吸込口からの本来の吸込力が
低下し、集塵室７の気圧が下らず、従って指針２が変位
しないという問題があった。Problems to be Solved by the Invention In such a conventional dust collection amount display device for a vacuum cleaner, if the pointer 2 is even slightly displaced toward the communication tube 8, atmospheric air leaks through the through hole 4 and the gap between the pointer 2 and the pointer tube 6. Since the dust flows into the dust collection chamber γ, the original suction force from the suction port of the vacuum cleaner decreases, and the air pressure in the dust collection chamber 7 does not drop, causing the problem that the pointer 2 does not move.
このような不具合に対して、塵埃が集塵袋１４内にほぼ
一杯に蓄積された時点で指針２が１変位するように指針
２の変位開始圧力を設定せざるを得なかった。しかし、
塵埃が繊維質主体のものであると、この種の塵埃は通気
性があるため集塵袋１４内に一杯になっても集塵室γ内
の圧力が所定圧力以下にならず、指針２が変位しないの
でそのまま続けて使用されて集！１袋１４を破裂させた
り、本体９に接続したホース内部にまで塵埃が蓄積して
しまうという問題も生じていた。To deal with such a problem, it is necessary to set the displacement start pressure of the pointer 2 so that the pointer 2 is displaced by one point when the dust collection bag 14 is almost completely accumulated. but,
If the dust is mainly fibrous, this type of dust is breathable, so even if the dust collection bag 14 is full, the pressure inside the dust collection chamber γ will not drop below the predetermined pressure, and the pointer 2 will Since it does not displace, it can be used continuously as it is! Problems have also arisen, such as one bag 14 bursting and dust accumulating inside the hose connected to the main body 9.
本発明は上記課題を解決するもので、集塵量に比例して
指針が集塵量を表示する使い勝手の良い電気掃除機の集
塵量表示装置を安価に提供することを目的とする。The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an easy-to-use dust collection amount display device for a vacuum cleaner at a low cost, in which a pointer displays the amount of dust collected in proportion to the amount of dust collected.
課題を解決するだめの手段
本発明は上記課題を解決するために、透明体からなる指
針筒と、前記指針筒の一端に接続され掃除機本体の集塵
室に連通ずる連通管と、前記指針筒の他端を閉止する粘
弾性体からなる薄膜状でそのフランジ部が厚肉に形成さ
れた弁体と、前記弁体を前記指針筒の他端に挟着する環
状の指針蓋と、前記指針筒に滑動自在に内装された有底
筒状の指針と、前記指針筒に内設され前記指針の外底面
を所定の値で前記弁体に弾接する指針バネとで構成した
ものである。また、弁体を外周部を厚肉に中心部を薄肉
に連続的に変化させて形成したものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a pointer tube made of a transparent material, a communication tube connected to one end of the pointer tube and communicating with a dust collection chamber of a vacuum cleaner body, and the pointer. a thin film-like valve body made of a viscoelastic material and having a thick flange portion that closes the other end of the cylinder; an annular pointer cover that clamps the valve body to the other end of the pointer cylinder; It is composed of a bottomed cylindrical pointer slidably housed in a pointer tube, and a pointer spring installed inside the pointer tube so that the outer bottom surface of the pointer comes into elastic contact with the valve body at a predetermined value. Further, the valve body is formed by continuously changing the thickness of the valve body from thick at the outer circumference to thin at the center.
作 用
本発明は上記した構成により、指針筒の端部を粘弾性材
からなる薄膜状の弁体で気密に封じているので、指針筒
を通じて集塵室への大気の流入がなくなり吸込力の低下
が防止される。これにより指針が変位し始める所定の真
空圧を従来より大気圧に近づけることができ、その結果
、塵埃の蓄積量にほぼ比例して指針を変位させることが
できる。Effect of the Invention According to the above-described structure, the end of the pointer tube is hermetically sealed with a thin film-like valve body made of a viscoelastic material, so air does not flow into the dust collection chamber through the pointer tube, and the suction force is reduced. Deterioration is prevented. This allows the predetermined vacuum pressure at which the pointer begins to be displaced to be closer to atmospheric pressure than in the past, and as a result, the pointer can be displaced approximately in proportion to the amount of accumulated dust.
また、弁体をフランジ部を厚肉に中心部を薄肉に連接的
に変化させて形成したので、真空圧と大気圧との差によ
る弁体の変位が厚さの一番薄い中心部から始まり、指針
を感度よくスムースに変位させることができる。In addition, since the valve body is formed with a thick wall at the flange and a thin wall at the center, displacement of the valve body due to the difference between vacuum pressure and atmospheric pressure starts from the center where it is thinnest. , the pointer can be smoothly displaced with good sensitivity.
実施例
以下、本発明の一実施例について第１図から第３図を参
照しながら説明する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3.
図に示すように、電気掃除機の本体２１は、その前部に
床用吸込具・延長管・ホースを通じて吸い込んだ塵埃を
濾過・集塵する紙袋２２を収容する集塵室２３を有し、
後部には電動送風機２４゜コード巻取装置等を内蔵して
いる。集塵室２３の上部には上蓋２６が気密的に取シ付
けられて集塵室２３を開閉自在に覆っている。この上蓋
２５は後部が上本体２６に係合し、前部は尾錠２７によ
り本体２１に取着しており、中火部には四部２８が形成
されて集塵量表示装置２９が取り付けらｉｌでいる。As shown in the figure, the main body 21 of the vacuum cleaner has a dust collection chamber 23 in its front part that houses a paper bag 22 that filters and collects dust sucked in through a floor suction tool, an extension pipe, and a hose.
The rear part has a built-in electric blower, 24° cord winding device, etc. An upper lid 26 is airtightly attached to the upper part of the dust collection chamber 23 and covers the dust collection chamber 23 so as to be openable and closable. The upper lid 25 has a rear part that engages with the upper main body 26, and a front part that is attached to the main body 21 with a buckle 27, and a four part 28 is formed in the middle fire part to which a dust collection amount display device 29 is attached. I'm here.
この集塵量表示装置２９は、第１図に示すように、透明
体で形成された指針筒３ｏの一端には集塵室２３に連通
する連通管３２が気密に接続され、他端には弁体３５が
環状の指針蓋３４によシ気密に装着されている。弁体３
５は合成ゴム等の粘弾性材かなり、薄膜状でそのフラン
ジ部３６が厚肉に形成され、フランジ部３６で指針筒３
ｏの他端に挟着されるようになっている。As shown in FIG. 1, in this dust collection amount display device 29, a communication pipe 32 communicating with the dust collection chamber 23 is airtightly connected to one end of a pointer tube 3o formed of a transparent material, and the other end is connected to a communication pipe 32 that communicates with the dust collection chamber 23. A valve body 35 is airtightly attached to an annular pointer cover 34. Valve body 3
Reference numeral 5 is made of a viscoelastic material such as synthetic rubber, which is in the form of a thin film, and the flange portion 36 thereof is formed with a thick wall.
It is designed to be clamped to the other end of o.
指針３１は有底筒状に形成され、指針筒３０に軸方向に
滑動自在に内装され、コイル状の指釦バネ３３によシそ
の外底面が弁体３５の内面に接するように付勢されてい
る。指針バネ３３は指針筒３０内が所定の真空圧になっ
た時に指針３１が弁体３６に押されて変位し始める強さ
を所定の値として、その所定の値で指針３１を弁体３５
に弾接している。また、環状の指針蓋３４の中央部は開
口３４ａしていて、この開口３４ａは本体２１外部に通
じている。The pointer 31 is formed into a cylindrical shape with a bottom, is housed inside the pointer tube 30 so as to be able to slide freely in the axial direction, and is biased by a coiled finger button spring 33 so that its outer bottom surface comes into contact with the inner surface of the valve body 35. ing. The pointer spring 33 has a predetermined value that is the strength with which the pointer 31 starts to be pushed by the valve body 36 when the inside of the pointer tube 30 reaches a predetermined vacuum pressure, and moves the pointer 31 to the valve body 35 at that predetermined value.
It is in ballistic contact with the Further, the annular pointer cover 34 has an opening 34a in the center thereof, and this opening 34a communicates with the outside of the main body 21.
以上のように構成された集塵量表示装置２９は、電動送
風機２４の運転によシ指針筒３ｏ内には集塵室２３の真
空圧が、指針蓋３４の開口３４ａには大気圧がそれぞれ
加わり、弁体３６が指針筒３゜内に向って撓んで変形し
、指針３１を指針バネ３３に抗して変位させて集塵量を
表示するものである。The dust collection amount display device 29 configured as described above displays the vacuum pressure of the dust collection chamber 23 in the pointer cylinder 3o and the atmospheric pressure in the opening 34a of the pointer cover 34 when the electric blower 24 is operated. In addition, the valve body 36 bends and deforms toward the inside of the pointer barrel 3°, and the pointer 31 is displaced against the pointer spring 33 to display the amount of dust collected.
上記構成において動作を説明する。The operation in the above configuration will be explained.
電気掃除機本体２１を使用して紙袋２２内に塵埃が蓄積
されると、電動送風機２４に流入する空気流量が低下し
、集塵室２３内の圧力が大気圧よシ低くなシ指針筒３０
内の圧力も大気圧よシ低くなる。そして、塵埃蓄積量が
増大して集塵室２３内および指針筒３０内の真空圧が所
定の圧力よシ低くなると、大気圧が指針バネ３３の所定
の値の発条力に打勝って弁体３５を指針筒３０内に撓ま
せて変形させる。この弁体３６の変形は指針３１に変位
（第１図で左方に）を与え、塵埃の蓄積量が表示される
。When dust accumulates in the paper bag 22 using the vacuum cleaner main body 21, the flow rate of air flowing into the electric blower 24 decreases, and the pressure in the dust collection chamber 23 becomes lower than atmospheric pressure.
The internal pressure will also be lower than atmospheric pressure. When the amount of accumulated dust increases and the vacuum pressure inside the dust collection chamber 23 and the pointer tube 30 becomes lower than a predetermined pressure, the atmospheric pressure overcomes the predetermined tension force of the pointer spring 33 and the valve body 35 is bent and deformed into the pointer tube 30. This deformation of the valve body 36 causes the pointer 31 to shift (toward the left in FIG. 1), and the amount of accumulated dust is displayed.
このようＫして塵埃の蓄積量が増加するに従い集塵室２
３内及び指針筒３０内の真空圧は低くなり、針弁３６の
変形量も徐々に増大し、これに伴って指針３１も更に変
位する。この変位の状態は表示窓孔３９から見ることが
でき、指針３１の壁面全体を着色しておけば、着色面と
指針筒３０の透明体部との面積或は軸方向の長さの比で
塵埃の蓄積度を知ることができる。そして、塵埃の蓄積
量が所定量以上になると、指針３１の変位量が最大にな
り、表示窓孔３９からは着色された指針３１だけが見え
、使用者に塵埃の廃棄時期であることを知らせ、紙袋２
２の交換を促すものである。In this way, as the amount of accumulated dust increases, the dust collection chamber 2
The vacuum pressure inside the needle valve 3 and the pointer barrel 30 becomes lower, the amount of deformation of the needle valve 36 gradually increases, and the pointer 31 is also further displaced accordingly. The state of this displacement can be seen through the display window 39, and if the entire wall surface of the pointer 31 is colored, the ratio of the area or axial length between the colored surface and the transparent body portion of the pointer barrel 30 You can know the degree of dust accumulation. When the amount of dust accumulated exceeds a predetermined amount, the displacement of the pointer 31 becomes maximum, and only the colored pointer 31 is visible through the display window hole 39, notifying the user that it is time to discard the dust. , paper bag 2
This is to encourage the exchange of 2.
このように本発明の実施例の電気掃除機の集塵量表示装
置によれば、粘弾性体からなる薄膜状の弁体３６をその
フランジ部３４で指針筒３０の端部に環状の指針蓋３４
で気密に挟着したので、指針筒の内外の空気の流れは完
全に遮断され、指針３１が変位しても指針筒３０を通じ
て集塵室２３内への大気の流入が起こらず、吸込力の低
下も発生しない。そして、吸込力の低下が発生しないこ
とにより、指針バネ３３の初期のバネ付勢力を小さくす
ることができ、弁体３５の粘弾性による伸びとともに真
空圧の低い状態から徐々に指針弁３６を変位させること
が可能となる。その結果、塵埃の蓄積量に比例した塵埃
蓄積量表示ができるという利点が得られる。As described above, according to the dust collection amount display device for a vacuum cleaner according to the embodiment of the present invention, the thin film-like valve body 36 made of a viscoelastic material is attached to the end of the pointer tube 30 with its flange portion 34 to form an annular pointer cover. 34
Since they are tightly sandwiched between the two, the flow of air inside and outside the pointer tube is completely blocked, and even if the pointer 31 is displaced, air will not flow into the dust collection chamber 23 through the pointer tube 30, and the suction force will be reduced. No decrease occurs either. Since the suction force does not decrease, the initial spring biasing force of the pointer spring 33 can be reduced, and as the valve body 35 stretches due to its viscoelasticity, the pointer valve 36 is gradually displaced from the low vacuum pressure state. It becomes possible to do so. As a result, there is an advantage that the amount of accumulated dust can be displayed in proportion to the amount of accumulated dust.
第３図は弁体３６の他の実施例を示し、弁体３５の厚さ
を外周部Ｔを厚肉に、中心部ｔを薄肉に連続的に変化さ
せて形成したもので、集塵量表示装置２９の動作につい
ては、第１の実施例のものと同様であるが、弁体３６の
厚さをＴ）ｔの寸法関係で連続的に変化させたので、指
針筒３０の内外の圧力差による弁体３５の変形は、厚さ
の差による求心性によシ弁体３５の中心部が他の部分よ
りも大きく変形し、より大きな指針３１の変位量を得る
ことができるという利点が得られる。FIG. 3 shows another embodiment of the valve body 36, in which the thickness of the valve body 35 is formed by continuously changing the thickness of the outer peripheral part T to be thicker and the center part T to be thinner, and the amount of dust collected is The operation of the display device 29 is similar to that of the first embodiment, but since the thickness of the valve body 36 is continuously changed according to the dimension relationship T), the pressure inside and outside the pointer tube 30 is The deformation of the valve body 35 due to the difference has the advantage that the center part of the valve body 35 deforms more than other parts due to the centripetal property due to the difference in thickness, and a larger displacement amount of the pointer 31 can be obtained. can get.
発明の効果
以上の実施例の説明から明らかなように、本発明によれ
ば、指針筒の端部に粘弾性体からなる薄膜状の弁体を環
状の指針蓋で密閉挟着し、指針筒に軸方向に滑動自在に
指針を内装し、指針を指針バネで弁体に弾接させたこと
により、指針筒の内外の空気の流れは完全に遮断され、
指針が変位しても指針筒を通じて集塵室内への大気の流
入が生ぜず、吸込力の低下も発生しない。そして、吸込
力の低下が発生しないことにより指針バネの初期のバネ
付勢力を小さくすることができ、弁体の粘弾性による伸
びとともに真空圧の低い状態から徐々に指針弁を変位さ
せることが可能となるその結果、塵埃の蓄積量に比例し
た塵埃蓄積量の表示ができる。Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, a thin film-like valve body made of a viscoelastic material is tightly clamped at the end of the pointer tube with an annular pointer cover, and the pointer tube is closed. By incorporating a pointer that can freely slide in the axial direction, and making elastic contact with the valve body using a pointer spring, the flow of air inside and outside the pointer tube is completely blocked.
Even if the pointer is displaced, air will not flow into the dust collection chamber through the pointer tube, and the suction force will not decrease. Since the suction force does not decrease, the initial spring biasing force of the pointer spring can be reduced, and as the valve body stretches due to its viscoelasticity, the pointer valve can be gradually displaced from a low vacuum pressure state. As a result, the amount of accumulated dust can be displayed in proportion to the amount of accumulated dust.
また、繊維質主体の塵埃が蓄積された場合でも、紙袋の
交換を促す変位範囲に確実に指針を変位させることがで
きるので、塵埃の過剰蓄積による紙袋の破裂をなくする
ことができる。Further, even when dust mainly composed of fibers is accumulated, the pointer can be reliably displaced within a displacement range that prompts replacement of the paper bag, so it is possible to prevent the paper bag from bursting due to excessive accumulation of dust.
更に、弁体の厚さを外周部を厚く、中心部を薄く連続的
に変化させて形成したことにより、弁体は中心部が外周
部よシ大きく変化するので、よシ大きな指針の変位量を
得ることができる。Furthermore, because the thickness of the valve body is continuously changed to be thicker at the outer circumference and thinner at the center, the center part of the valve body changes more than the outer circumference, so a larger amount of displacement of the pointer can be achieved. can be obtained.
そして、弁体はいずれのものも成型品で形成することか
できるので上記した効果と相俟って安価で使い勝手のよ
い電気掃除機の集塵量表示装置を提供することができる
。Since each valve body can be formed as a molded product, in combination with the above-mentioned effects, it is possible to provide an inexpensive and easy-to-use dust collection amount display device for a vacuum cleaner.
第１図は本発明の第１の実施例の電気掃除機の集塵量表
示装置の側断面図、第２図は同第２の実施例の要部側断
面図、第３図は同集塵量表示装置を装着した電気掃除機
の側断面図、第４図は従来例の集塵量表示装置の側断面
図、第５図は同集塵量表示装置を装着した電気掃除機の
側断面図である。
２１・・・・・・掃除機本体、２３・・・・・・集塵室
、３０・・・・・・指針筒、３１・・・・・・指針、３
２・・・・・・連通管、３３・・・・・・指針バネ、３
４・・・・・・指針蓋、３５・・・・・・弁体、３６・
・・・・・フランジ部、Ｔ・・・・・・外周部、ｔ・・
・・・・中心部。Fig. 1 is a side sectional view of a dust collection amount display device for a vacuum cleaner according to the first embodiment of the present invention, Fig. 2 is a side sectional view of the main part of the second embodiment, and Fig. 3 is the same. Fig. 4 is a side sectional view of a vacuum cleaner equipped with a dust amount display device, Fig. 4 is a side sectional view of a conventional dust collection amount display device, and Fig. 5 is a side sectional view of a vacuum cleaner equipped with the same dust collection amount display device. FIG. 21... Vacuum cleaner body, 23... Dust collection chamber, 30... Pointer tube, 31... Pointer, 3
2...Communication pipe, 33...Pointer spring, 3
4... Pointer lid, 35... Valve body, 36...
...Flange part, T...Outer circumference part, T...
····Central part.
Claims (2)
続され掃除機本体の集塵室に連通する連通管と、前記指
針筒の他端を閉止する粘弾性体からなる薄膜状でそのフ
ランジ部が厚肉に形成された弁体と、前記弁体を前記指
針筒の他端に挟着する環状の指針蓋と、前記指針筒に滑
動自在に内装された有底筒状の指針と、前記指針筒に内
設され前記指針の外底面を所定の値で前記弁体に弾接す
る指針バネとを備えた電気掃除機の集塵量表示装置。(1) A pointer tube made of a transparent material, a communication pipe connected to one end of the pointer tube and communicating with the dust collection chamber of the vacuum cleaner body, and a thin film-like material made of a viscoelastic material that closes the other end of the pointer tube. a valve body whose flange portion is formed thick; an annular pointer lid that clamps the valve body to the other end of the pointer tube; and a bottomed cylindrical pointer slidably housed in the pointer tube. and a pointer spring which is disposed inside the pointer barrel and causes the outer bottom surface of the pointer to come into elastic contact with the valve body at a predetermined value.
化させて形成した請求項１記載の電気掃除機の集塵量表
示装置。(2) The dust collection amount display device for a vacuum cleaner according to claim 1, wherein the valve body is formed by continuously changing the thickness of the valve body to be thick at the outer circumference and thin at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070434A JPH0832254B2 (en) | 1990-03-20 | 1990-03-20 | Vacuum cleaner dust collection display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070434A JPH0832254B2 (en) | 1990-03-20 | 1990-03-20 | Vacuum cleaner dust collection display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03268726A true JPH03268726A (en) | 1991-11-29 |
| JPH0832254B2 JPH0832254B2 (en) | 1996-03-29 |
Family
ID=13431372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2070434A Expired - Fee Related JPH0832254B2 (en) | 1990-03-20 | 1990-03-20 | Vacuum cleaner dust collection display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0832254B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182678A (en) * | 1974-11-29 | 1976-07-20 | Maaden Uirisu Uiriamu | SAATSUIN JIKEETA |
-
1990
- 1990-03-20 JP JP2070434A patent/JPH0832254B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182678A (en) * | 1974-11-29 | 1976-07-20 | Maaden Uirisu Uiriamu | SAATSUIN JIKEETA |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0832254B2 (en) | 1996-03-29 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |