JPH0747040A - Suction mouth of electric vacuum cleaner - Google Patents

Suction mouth of electric vacuum cleaner

Info

Publication number
JPH0747040A
JPH0747040A JP19618993A JP19618993A JPH0747040A JP H0747040 A JPH0747040 A JP H0747040A JP 19618993 A JP19618993 A JP 19618993A JP 19618993 A JP19618993 A JP 19618993A JP H0747040 A JPH0747040 A JP H0747040A
Authority
JP
Japan
Prior art keywords
suction
suction port
air
vacuum cleaner
opening area
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.)
Pending
Application number
JP19618993A
Other languages
Japanese (ja)
Inventor
Takeshi Sato
毅 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TEC CORP
Original Assignee
TEC CORP
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 TEC CORP filed Critical TEC CORP
Priority to JP19618993A priority Critical patent/JPH0747040A/en
Publication of JPH0747040A publication Critical patent/JPH0747040A/en
Pending legal-status Critical Current

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  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

PURPOSE:To secure approx. constant quantity of suction wind always irrespective of varying wind quantity sucked from a suction port. CONSTITUTION:The open area of a suction port 6 is made smaller than that of an opening 3a, and slits 8, 8 are formed in the walls 4, 4 and a suction mouth 1 having valve elements 9. 9 where parts of the walls 4, 4 make displacement toward the suction passage 7 is connected with the end of a pipe 2 leading to the inside of the machine body.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、電気掃除機の吸込口体
に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port body of an electric vacuum cleaner.

【0002】[0002]

【従来の技術】従来、掃除機本体(図示せず)内に連通
する管体の端部に接続されると共に、接続側の開口部の
開口面積よりも先端側の開口面積を小さくして吸込力を
強くした先細りの吸込口体がある。
2. Description of the Related Art Conventionally, suction is performed by connecting to an end of a pipe communicating with a cleaner body (not shown) and making an opening area on a tip side smaller than an opening area on a connecting side. There is a tapered suction mouth with stronger power.

【0003】このような吸込口体に形成された吸込口の
開口面積は、小さく設定すればそれだけ吸込速度が速く
なるために吸込力が高くなるばかりでなく、狭いスペー
スへの掃除が可能となる等のように使用範囲を拡大する
ことができるという利点がある反面、この開口面積を小
さくすると吸込風量も少なくなり、気掃除機本体内に内
蔵されたファンモータの冷却効果が薄れてしまうために
開口面積を小さく設定するには限界がある。
If the opening area of the suction port formed in such a suction port body is set to be small, not only the suction speed becomes higher and the suction force becomes higher, but also cleaning in a narrow space becomes possible. Although it has the advantage of being able to expand the range of use, etc., the smaller the opening area, the smaller the amount of intake air, and the less the cooling effect of the fan motor built into the air cleaner body. There is a limit to how small the opening area can be set.

【0004】[0004]

【発明が解決しようとする課題】ところで、掃除をして
いる最中に、その掃除をしているエリアにあった比較的
大きなもの、例えば、ビニール袋や絨毯の端部が吸込口
に吸い付いて吸込口が塞がれてしまうという場合があ
る。
By the way, during cleaning, a relatively large object, for example, a plastic bag or the end of a carpet, in the area being cleaned sticks to the suction port. In some cases, the suction port is blocked.

【0005】このような吸い付きが発生すると、スイッ
チをオフにするか、吸い付いたものを強制的に手で取り
除くかしないと、吸込源であるファンモータの冷却がで
きないばかりでなく、吸込まれる空気が無いために吸込
通路が真空状態となってしまう等、ファンモータへの負
担が大きくなってしまい、冷却不足に伴うファンモータ
の劣化が激しいものとなってしまう。
When such suction occurs, the fan motor, which is the suction source, cannot be cooled unless the switch is turned off or the suctioned matter is forcibly removed by hand. Since the suction passage is in a vacuum state because there is no air to be blown, the load on the fan motor becomes large, and the fan motor is severely deteriorated due to insufficient cooling.

【0006】そこで、図3に示すように、管体aに接続
される吸込口体bの先端寄りの壁部に、開口面積の和が
吸込口cの開口面積に等しい開口d,dを形成してアル
ミサッシ等の溝内を掃除する場合に、レールの底面に付
着した塵埃等は吸込口cから吸込し、レール壁部に付着
した塵埃等は開口d,dから吸込するように構成すると
共に、吸込口cが塞がれても開口d,dから吸込まれた
空気によりファンモータを冷却するように構成すること
が考えられる(例えば、特開平4−166122号公報
参照)。
Therefore, as shown in FIG. 3, openings d, d whose sum of opening areas is equal to the opening area of the suction port c are formed in the wall portion near the tip of the suction port body b connected to the pipe body a. When cleaning the inside of the groove of the aluminum sash or the like, the dust and the like adhering to the bottom surface of the rail is sucked through the suction port c, and the dust and the like adhering to the rail wall portion is sucked through the openings d, d. At the same time, it is conceivable that the fan motor is cooled by the air sucked through the openings d, d even if the suction port c is closed (see, for example, JP-A-4-166122).

【0007】しかしながら、このような吸込口体bにあ
っては、吸込口cが完全には塞がれていない場合を含め
て状況によって吸込風量が変化するため、冷却不足に伴
うファンモータの劣化をある程度は防止することができ
るものの、完全なる劣化防止効果を得られるものではな
かった。
However, in such a suction inlet b, since the suction air volume changes depending on the situation including the case where the suction inlet c is not completely closed, the fan motor is deteriorated due to insufficient cooling. Although it could be prevented to some extent, a complete deterioration preventing effect was not obtained.

【0008】尚、ファンモータの温度を検出するサーモ
スタット等を内蔵し、ファンモータの温度上昇が激しい
場合には自動的にスイッチをオフするように構成したも
のもあるが、温度検知装置が高価でしかも冷却不足を解
消するということに貢献するものではない。
There is a thermostat for detecting the temperature of the fan motor and the like, which is configured to automatically turn off the switch when the temperature of the fan motor rises sharply, but the temperature detecting device is expensive. Moreover, it does not contribute to eliminating the lack of cooling.

【0009】本発明は上記事情に鑑みなされたものであ
って、吸込口からの吸込風量の変化に関係無く略一定の
吸込風量を常に確保することができる電気掃除機の吸込
口体を提供することを目的とするものである。
The present invention has been made in view of the above circumstances, and provides a suction port body of an electric vacuum cleaner capable of always ensuring a substantially constant suction air amount regardless of changes in the suction air amount from the suction port. That is the purpose.

【0010】[0010]

【課題を解決するための手段】本発明は、その目的を達
成するため、掃除機本体内に連通する管体の端部に接続
される筒状の基部と、該基部の開口面積よりも小さい開
口面積の吸込口を形成する壁部とが本体に一体に形成さ
れた電気掃除機の吸込口体において、前記本体の一部が
吸込通路側に変位可能となるように前記本体にスリット
を形成し、前記本体の一部を弁体としたことを要旨とす
る。
In order to achieve the object, the present invention has a cylindrical base portion connected to an end portion of a pipe body communicating with the inside of a cleaner body, and has an opening area smaller than that of the base portion. In a suction port body of an electric vacuum cleaner in which a wall portion forming a suction port having an opening area is integrally formed with the main body, a slit is formed in the main body so that a part of the main body can be displaced toward a suction passage side. However, the gist is that a part of the main body is a valve body.

【0011】[0011]

【作用】このような構成においては、筒状の基部が掃除
機本体内に連通する管体の端部に接続され、壁部により
基部の開口面積よりも小さい開口面積の吸込口が形成さ
れ、基部と壁部とを一体に形成する本体にスリットが形
成され、このスリットにより本体の一部が吸込通路側に
変位可能となる弁体が本体に形成される。
In such a structure, the cylindrical base is connected to the end of the pipe body communicating with the inside of the cleaner body, and the wall forms the suction opening having an opening area smaller than the opening area of the base. A slit is formed in the main body that integrally forms the base portion and the wall portion, and the slit forms a valve body in which a part of the main body can be displaced toward the suction passage side.

【0012】[0012]

【実施例】次に、本発明の電気掃除機の吸込口体の実施
例を図1及び図2に基づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the suction port body of the vacuum cleaner of the present invention will be described with reference to FIGS.

【0013】図において、吸込口体1(本体)は、電気
掃除機本体(図示せず)に連通された管体2に接続され
る円筒状の基部3と、その中途部から先端に向けて互い
に接近する壁部4,4とを有する偏平部5と、先端に形
成された正面視矩形の吸込口6から基部3に至る吸込通
路7とを備えている。
In the figure, a suction inlet body 1 (main body) has a cylindrical base portion 3 connected to a pipe body 2 communicating with a main body (not shown) of an electric vacuum cleaner, and a midway portion thereof toward a tip thereof. A flat portion 5 having walls 4 and 4 approaching each other, and a suction passage 7 extending from a suction port 6 having a rectangular shape in a front view to a base portion 3 are formed at the tip.

【0014】基部3の開口部3aの開口面積は、吸込口
6の開口面積よりも大きく設定されている。
The opening area of the opening 3a of the base 3 is set larger than the opening area of the suction port 6.

【0015】壁部4,4には、先端側に両端部が位置す
る略U字状のスリット8,8が形成されている。
The walls 4 and 4 are provided with substantially U-shaped slits 8 and 8 of which both ends are located on the front end side.

【0016】このスリット8,8は、吸込口6からの吸
込風量に応じて、図1(D)に示すように、壁部4,4
の一部が吸込通路7側に変位する弁体9,9を形成す
る。
The slits 8 and 8 are wall portions 4 and 4 as shown in FIG. 1 (D) in accordance with the amount of suction air from the suction port 6.
Forms part of the valve bodies 9, 9 that are displaced toward the suction passage 7.

【0017】以下、本発明の作用を図1(B)〜図1
(D)に基づいて説明する。尚、この図1(B)〜図1
(D)に表示した矢印Q1〜Q7は、本発明の作用を模
式的に示すためのもので、各矢印Q1〜Q7の面積は風
量、各矢印Q1〜Q7の矢印の長さは風速を意味する。
The operation of the present invention will be described below with reference to FIGS.
A description will be given based on (D). In addition, this FIG. 1 (B) -FIG.
The arrows Q1 to Q7 shown in (D) are for schematically showing the operation of the present invention, the area of each arrow Q1 to Q7 means the air volume, and the length of each arrow Q1 to Q7 means the wind speed. To do.

【0018】上記の構成において、掃除機本体に内蔵さ
れたファンモータ(図示せず)が駆動して吸込作用が発
生すると、図1(B)に示すように、吸込口6から所定
風量・風速の空気Q1が吸込まれ、この吸込により塵埃
等のゴミの吸い込が可能となる。
In the above structure, when the fan motor (not shown) built in the cleaner body is driven to generate the suction action, as shown in FIG. The air Q1 is sucked in, and this suction allows dust such as dust to be sucked in.

【0019】このとき、吸い込口体1は、基部3の開口
面積よりも吸込口6の開口面積は小さく設定されてい
る。従って、吸込通路7内では、基部3により形成され
た位置P1を通過する際の空気Q1の風量と壁部4によ
り形成された位置P2を通過する空気Q2の風量とは同
じ風量であっても、位置P1,P2での風速は位置P1
の方が速くなるため吸込口6での吸込力が高いものとな
っている。
At this time, in the suction port body 1, the opening area of the suction port 6 is set smaller than the opening area of the base portion 3. Therefore, in the suction passage 7, even if the air volume of the air Q1 passing through the position P1 formed by the base portion 3 and the air volume of the air Q2 passing through the position P2 formed by the wall portion 4 are the same, , The wind speeds at positions P1 and P2 are at position P1
Therefore, the suction force at the suction port 6 is high.

【0020】この速度差は、空気Q1と空気Q2の風量
が同じであるにも拘らず位置P1と位置P2とで風路断
面積が異なるために、所定真空度(矢印H1により模式
的に示す)の真空状態が位置P2で発生することに起因
する。なお、この真空度は、吸込口6から吸込まれる空
気の風量とファンモータの吸込力とのバランスによって
も変化する。
This speed difference is indicated by a predetermined vacuum degree (the arrow H1 schematically) because the air passage cross-sectional area is different between the position P1 and the position P2 although the air volumes of the air Q1 and the air Q2 are the same. ) Is generated at the position P2. The degree of vacuum also changes depending on the balance between the amount of air sucked from the suction port 6 and the suction force of the fan motor.

【0021】今、この吸込口体1で掃除をしようとし
て、図1(C)に示すように、吸込口6を対象面10に
接近させると、この対象面10が障害物となって吸込口
6から吸込まれる空気Q3の風量は激減し、位置P2を
通過する空気Q4の風量も空気Q3の風量に比例して激
減する。
Now, as shown in FIG. 1 (C), when the suction port 6 is brought closer to the target surface 10 for cleaning with the suction port body 1, the target surface 10 becomes an obstacle and becomes a suction port. The air volume of the air Q3 sucked from 6 is drastically reduced, and the air volume of the air Q4 passing through the position P2 is also drastically reduced in proportion to the air volume of the air Q3.

【0022】尚、この風量Q3,Q4は、その風量が激
減しても、その激減した風量で塵埃等のゴミを吸込むよ
うに設定されていると共に、吸込口6の縁部が円弧状に
形成されているため、アルミサッシのレール等の硬質体
上を掃除する場合のゴミの吸込に悪影響を及ぼすもので
はない。
The air volumes Q3, Q4 are set so that even if the air volume is drastically reduced, dust such as dust is sucked with the air volume drastically reduced, and the edge of the suction port 6 is formed in an arc shape. Therefore, it does not adversely affect the suction of dust when cleaning a hard body such as an aluminum sash rail.

【0023】吸込通路7内の真空度(矢印H2により模
式的に示す)は、この空気Q3の風量の激減に反比例し
て増大する。
The degree of vacuum in the suction passage 7 (schematically shown by the arrow H2) increases in inverse proportion to the drastic decrease in the air volume of the air Q3.

【0024】しかしながら、図1(D)に示すように、
この真空度の変化に応じて弁体9,9が吸込通路7側へ
と変位してスリット8,8の開口面積が大きくなり、こ
のスリット8,8の開口部分から空気Q5,Q6が吸込
通路7へと吸込まれ、結果的に位置P2を通過する空気
Q7の風量は、 Q7=Q3+Q5+Q6 となる。
However, as shown in FIG.
The valve bodies 9, 9 are displaced toward the suction passage 7 side in accordance with the change in the degree of vacuum, and the opening areas of the slits 8, 8 are increased. The air volume of the air Q7 that is sucked into 7 and consequently passes through the position P2 is Q7 = Q3 + Q5 + Q6.

【0025】このとき、弁体9,9の変位量は、その肉
厚によって調整され、その肉厚の設定は、H1<H2と
なったときに、 風量が、 Q1=Q2≒Q3+Q5+Q6 真空度が、 H1≒H3 となるような肉厚(例えば、1〜2mm)に設定されて
いる。
At this time, the amount of displacement of the valve bodies 9 and 9 is adjusted by the wall thickness, and when the wall thickness is set to H1 <H2, the air volume is Q1 = Q2≈Q3 + Q5 + Q6 , H1≈H3 (for example, 1 to 2 mm).

【0026】尚、図1(C)に開示した状態は、図1
(D)に開示した状態を説明するためのもので、実際に
は吸込口6からの吸込量の変化(真空度の変化)に連動
して変位する。
The state disclosed in FIG. 1C is the same as that shown in FIG.
This is for explaining the state disclosed in (D), and is actually displaced in association with the change in the suction amount from the suction port 6 (change in the degree of vacuum).

【0027】従って、吸込口6の開口部分を完全に塞ぐ
ような異物が不測に吸い付いてしまって吸込口6からの
空気の吸込が完全に無くなった場合のみならず、吸込口
6からの吸込量が掃除状況下に応じて減少したとして
も、弁体9,9の開放により空気の吸い込が程一定に確
保され、冷却不足に伴うファンモータの劣化や真空状態
によるファンモータへの負荷等の負担が大幅に軽減され
る。
Therefore, not only when the foreign matter that completely blocks the opening of the suction port 6 is accidentally sucked and the suction of air from the suction port 6 is completely eliminated, but also when the suction from the suction port 6 is completed. Even if the amount decreases in accordance with the cleaning situation, the intake of air is secured to a certain extent by opening the valve bodies 9, 9, the fan motor is deteriorated due to insufficient cooling, and the load on the fan motor due to a vacuum state is caused. The burden on is greatly reduced.

【0028】ところで、上記実施例では、スリット8,
8の形状を略U字状に形成したものを開示したが、略コ
字状とするなど、上記実施例に限定されるものではな
い。また、スリット8,8は、その両端を吸込口6側に
位置させて弁対9,9の自由端部を吸込方向に位置させ
たことにより、外気の吸込通路7への案内を容易且つス
ムースに行なうことができる。
By the way, in the above embodiment, the slits 8,
Although the shape of 8 formed into a substantially U shape is disclosed, the shape is not limited to the above-described embodiment such as a substantially U shape. Further, the slits 8 and 8 have both ends located on the suction port 6 side and the free ends of the valve pairs 9 and 9 located in the suction direction, so that the outside air can be easily and smoothly guided to the suction passage 7. Can be done

【0029】[0029]

【発明の効果】以上説明したように、本発明の電気掃除
機の吸込口体にあっては、壁部の一部が吸込通路側に変
位可能となるように壁部にスリットを形成してこの壁部
の一部を弁体としたことにより、吸込口からの吸込風量
の変化に関係無く略一定の吸込風量を常に確保すること
ができる。
As described above, in the suction inlet of the electric vacuum cleaner of the present invention, the slit is formed in the wall so that a part of the wall can be displaced toward the suction passage. By using a part of the wall portion as the valve element, a substantially constant suction air volume can be always secured regardless of the change of the suction air volume from the suction port.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の電気掃除機の吸込口体を示すもので、
(A)は要部の側面図、(B)は(A)のA−A線に沿
う断面図、(C)は吸込口からの吸込風量が激減した状
態を説明する(B)に対応した断面図、(D)は弁体が
開放した状態の(B)に対応した断面図である。
FIG. 1 shows a suction inlet of an electric vacuum cleaner according to the present invention,
(A) is a side view of the main part, (B) is a cross-sectional view taken along the line AA of (A), and (C) corresponds to (B) for explaining a state in which the amount of suction air from the suction port is drastically reduced. A sectional view, (D) is a sectional view corresponding to (B) in a state where the valve body is opened.

【図2】同じく要部の正面図である。FIG. 2 is a front view of the same main portion.

【図3】従来の電気掃除機の吸込口体を示す要部の側面
図である。
FIG. 3 is a side view of a main part showing a suction port body of a conventional electric vacuum cleaner.

【符号の説明】[Explanation of symbols]

1…吸込口体(本体) 2…管体 3…基部 3a…開口部 4…壁部 6…吸込口 7…吸込通路 8…スリット 9…弁体 DESCRIPTION OF SYMBOLS 1 ... Suction port body (main body) 2 ... Tubular body 3 ... Base part 3a ... Opening part 4 ... Wall part 6 ... Suction port 7 ... Suction passage 8 ... Slit 9 ... Valve body

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 掃除機本体内に連通する管体の端部に接
続される筒状の基部と、該基部の開口面積よりも小さい
開口面積の吸込口を形成する壁部とが本体に一体に形成
された電気掃除機の吸込口体において、 前記本体の一部が吸込通路側に変位可能となるように前
記本体にスリットを形成し、前記本体の一部を弁体とし
たことを特徴とする電気掃除機の吸込口体。
1. A vacuum cleaner body is integrally provided with a tubular base portion connected to an end portion of a tubular body communicating with the inside of the cleaner body, and a wall portion forming a suction port having an opening area smaller than the opening area of the base portion. In the suction port body of the electric vacuum cleaner formed in, a slit is formed in the main body so that a part of the main body can be displaced toward the suction passage side, and a part of the main body is a valve body. The suction inlet of the vacuum cleaner.
JP19618993A 1993-08-06 1993-08-06 Suction mouth of electric vacuum cleaner Pending JPH0747040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19618993A JPH0747040A (en) 1993-08-06 1993-08-06 Suction mouth of electric vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19618993A JPH0747040A (en) 1993-08-06 1993-08-06 Suction mouth of electric vacuum cleaner

Publications (1)

Publication Number Publication Date
JPH0747040A true JPH0747040A (en) 1995-02-21

Family

ID=16353677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19618993A Pending JPH0747040A (en) 1993-08-06 1993-08-06 Suction mouth of electric vacuum cleaner

Country Status (1)

Country Link
JP (1) JPH0747040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010500066A (en) * 2006-08-08 2010-01-07 ダイソン テクノロジー リミテッド Attachment of cleaning appliance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010500066A (en) * 2006-08-08 2010-01-07 ダイソン テクノロジー リミテッド Attachment of cleaning appliance
US9186027B2 (en) 2006-08-08 2015-11-17 Dyson Technology Limited Attachment for a cleaning appliance

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