JPH0265826A - Turbine nozzle for vacuum cleaner - Google Patents

Abstract

PURPOSE:To reduce high-frequency sound and contrive dust not to be caught by a method wherein a shield plate is provided with a rib in a specific shape, and wherein a part on the central side of a suction passage in front of a turbine is covered when the turbine is rotated, and wherein the rib is positioned at the end section of the suction passage when the turbine is stopped. CONSTITUTION:A rib 50 and a shield plate 41 are integrally arranged, and the rib is projected to the side of an agitator chamber 23, and the horizontal cross-sectional area is formed almost in the shape of L. When a carpet is cleaned, then a tab 40 is positioned on the side of a turbine chamber 22, and by the shield plate 41, the most section of a passage 38 is closed, and suction air current is throttled through a turbine port and is run in. The rib 50 is projected into the agitator chamber 23, and so the current speed of the suction air current is lowered, and the generation of high-frequency sound due to a turbine is suppressed. When the surfaces of a wooden floor and a matted floor are cleaned, then the tab 40 is positioned on the end section side of a turbine nozzle 21, and through a ventilating hole 42, the passage 38 is opened at the position of the right front side of the turbine 24, and by the shield plate 41, the turbine opening 44 is closed. The rib 50 is positioned at the end section of the suction passage of dust, and so even if fibrous dust is passed through, it is not caught.

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ホース・延長管だ接続して用いる
タービンノズルに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a turbine nozzle for use in connection with a hose/extension pipe of a vacuum cleaner.

従来の技術 従来、この種のタービンノズルにおいては、電気掃除機
の吸引空気流で内蔵したタービンを回転させ、発生した
回転トルクでアジテータ−を回転駆動し、じゅうたん等
の繊維根元の塵埃を掻き上げ、吸入することにより、吸
塵性能を高めてじゅうたん掃除を行なう構成となってい
た。Conventional technology Conventionally, in this type of turbine nozzle, a built-in turbine is rotated by the suction air flow of a vacuum cleaner, and the generated rotational torque drives an agitator to rotate, thereby scraping up dust from the base of fibers of carpets, etc. It was designed to increase dust absorption performance and clean carpets by inhaling it.

ところが、近年の電気掃除機の吸込性能の向上にともな
い、使い始めや塵埃を捨てた後の使用時の吸込風量が増
大してきている。この場合にはタービンを超高速回転さ
せることとなり、タービンの羽根が高速吸込気流を断続
的に且つ高速で切るために発生する高周波音を原因とす
る騒音の増大という問題が発生している。However, as the suction performance of vacuum cleaners has improved in recent years, the amount of suction air required for the first use or after the dust has been disposed of has increased. In this case, the turbine is rotated at an extremely high speed, and a problem arises in that the turbine blades cut the high-speed suction airflow intermittently and at high speed, resulting in an increase in noise due to high-frequency sound generated.

これを解消するものとしてなされた考案を第６図〜第６
図に基づいて説明する。タービン１を内蔵するタービン
室２と回転ブラシ３を内蔵するブラシ室４とを連通ずる
通路として主通路５と副通路６が形成され、上本体７と
下本体８で形成された隔壁９で区画されている。主通路
５を通過する吸込気流は直接タービン１に衝突せず、副
通路６を通過する吸込気流はタービン１に直接衝突する
。Figures 6 to 6 show the ideas devised to solve this problem.
This will be explained based on the diagram. A main passage 5 and a sub passage 6 are formed as passages that communicate the turbine chamber 2 containing the turbine 1 and the brush chamber 4 containing the rotating brush 3, and are partitioned by a partition wall 9 formed by an upper body 7 and a lower body 8. has been done. The suction airflow passing through the main passage 5 does not collide directly with the turbine 1 , and the suction airflow passing through the auxiliary passage 6 collides directly with the turbine 1 .

遮蔽板１０は主通路５を開閉し、主通路を開いたときは
タービンノズル１１の吸込気流の大部分はこの主通路５
を通過して電気掃除機本体に吸入され、タービン１に衝
突する吸込気流の流速は小さいためにタービン１は回転
せず、木床や畳面掃除状態となる。一方、遮蔽板１ｏを
操作して主通路５を閉じたときには、吸込気流が副通路
６からタービン室２内に流入し、高速でタービン１に衝
突してこれを回転させ、回転ブラシ３が回転駆動されて
じゅうたん掃除状態となる。１２は副通路６の直前で下
本体８に一体に形成されたリブで、断面略Ｌ字形状でタ
ービンノズル１１の中央側より副通路６をおおっている
。このリブ１２はタービンノズル１１の中央側より副通
路６に流入する吸込気流を制限し、吸込気流の流速を下
げて前述の高周波音の発生を抑制するとともに、発生す
る高周波音が副通路６を通ってタービン室２からブラフ
室４に、さらにはタービンノズル１１外に洩れることを
防いでいる。The shielding plate 10 opens and closes the main passage 5, and when the main passage is opened, most of the intake airflow of the turbine nozzle 11 flows through the main passage 5.
Since the flow velocity of the suction airflow that passes through the vacuum cleaner body and collides with the turbine 1 is small, the turbine 1 does not rotate and is in the state of cleaning wooden floors and tatami surfaces. On the other hand, when the shielding plate 1o is operated to close the main passage 5, the suction airflow flows into the turbine chamber 2 from the auxiliary passage 6, collides with the turbine 1 at high speed and rotates it, and the rotating brush 3 rotates. It is activated to clean the carpet. Reference numeral 12 denotes a rib integrally formed on the lower body 8 immediately in front of the auxiliary passage 6, which has a substantially L-shaped cross section and covers the auxiliary passage 6 from the center side of the turbine nozzle 11. This rib 12 restricts the suction airflow flowing into the auxiliary passage 6 from the center side of the turbine nozzle 11, reduces the flow velocity of the suction airflow, and suppresses the generation of the above-mentioned high-frequency sound. This prevents leakage from the turbine chamber 2 to the bluff chamber 4 and further to the outside of the turbine nozzle 11.

発明が解決しようとする課題 ところが上記構成では、下本体８にリブ１２を一体に形
成しているため、木床や畳面掃除の時においては副通路
６を通過する吸込気流を乱流にして木床・畳面掃除状態
での吸込騒音を増加させていた。Problem to be Solved by the Invention However, in the above structure, since the rib 12 is integrally formed on the lower body 8, when cleaning a wooden floor or a tatami surface, the suction airflow passing through the sub passage 6 is turned into a turbulent flow, and the rib 12 is formed integrally with the lower body 8. This increased suction noise when cleaning floors and tatami surfaces.

さらに、木床や畳面掃除の際には、タービンノズル１１
に吸入されてきた繊維質の塵埃が、主通路６と副通路６
に分かれてタービン室２内に吸入されるために、隔壁９
．リブ１２に引っかかり、スムーズに電気掃除機本体に
吸引されないという欠点を有していた。Furthermore, when cleaning wooden floors or tatami surfaces, the turbine nozzle 11
The fibrous dust that has been inhaled into the main passage 6 and the sub passage 6
In order to separate the intake into the turbine chamber 2, the partition wall 9
．． It has the disadvantage that it gets caught on the rib 12 and cannot be smoothly sucked into the vacuum cleaner body.

本発明はこれらの課題を解消し、使い勝手の良いタービ
ンノズルを提供しようとするものである。The present invention aims to solve these problems and provide a turbine nozzle that is easy to use.

課題を解決するだめの手段 上記課題を解決するため本発明は、内部にアジテータ−
を収容し下面に吸込口を有するアジテータ−室と、アジ
テータ−を回転駆動するタービンを内蔵するタービン室
と、これらタービン室とアジテータ−室を連通ずる吸気
通路と、吸気通路のタービン前方を摺動自在に開閉して
タービンの回転・停止を制御する遮蔽板と、タービン室
を形成する上本体と下本体を具備し、前記遮蔽板はアジ
テータ−室側に突出した断面略Ｌ字状のリブを有し、こ
のリブはタービン回転状態ではタービン前方の吸気通路
のタービンノズル中央側の一部ヲおおい、タービン停止
状態では吸気通路の端部に位置するよう構成するもので
ある。Means for Solving the Problems In order to solve the above problems, the present invention includes an internal agitator.
an agitator chamber that accommodates the agitator and has a suction port on the lower surface; a turbine chamber that houses a turbine that rotationally drives the agitator; an intake passage that communicates these turbine chambers with the agitator chamber; The shielding plate is provided with a shielding plate that can be freely opened and closed to control rotation and stop of the turbine, and an upper body and a lower body that form a turbine chamber, and the shielding plate has a rib having a substantially L-shaped cross section that protrudes toward the agitator chamber. The rib is configured to cover a portion of the intake passage in front of the turbine on the center side of the turbine nozzle when the turbine is rotating, and to be located at the end of the intake passage when the turbine is stopped.

作用 上記の構成による作用は、じゅうたん掃除の際には遮蔽
板に形成したリブでタービン前方の吸気通路の中央側一
部をおおってタービンが発生する高周波音を低減する。Effect The effect of the above configuration is that when cleaning a carpet, a rib formed on the shielding plate covers a part of the center side of the intake passage in front of the turbine, thereby reducing high-frequency noise generated by the turbine.

他方、木床１畳面掃除の際には遮蔽板の摺動にともなっ
てリブを吸気通路の端部に位置させ、塵埃の引っかかり
をなくし、またリブによる乱流の発生をなくして吸込気
流音の低減を行なえるものである。On the other hand, when cleaning a single tatami wooden floor, as the shielding plate slides, the ribs are positioned at the end of the intake passage to prevent dust from getting caught, and to eliminate the generation of turbulence caused by the ribs, reducing intake air noise. It is possible to reduce the

実施例 以下本発明の一実施例を図面を参照して説明する。Example An embodiment of the present invention will be described below with reference to the drawings.

第１図〜第４図において電気掃除機本体にホース・延長
管を介して接続されるタービンノズル２１は、前部にア
ジテータ−２２を内蔵するアジテータ−室２３、後方に
タービン２４を内蔵して上本体２６、下本体２６、接続
管２７より構成するタービン室２８を有している。接続
管２７は上本体２６と下本体２６によって一定範囲回動
自在に挾持され、前記ホースや延長管に接続される連結
管２９が連結リング３ｏを介して回転自在に接続されて
いる。前本体３１は一対の尾錠の作用で着脱自在に上本
体２５及び下本体２６に結合し、アジテータ−室２３を
上方からおおっている。軸受バイブ３２はタービン２４
を保持したタービン軸３３を回転摺動自在に保持し、ベ
ルト３４はタービン軸３３のタービン２４とは反対の端
部とアジテータ−２２の端部に取着したプーリー３６と
に張架され、タービン２４の回転によって生じた回転ト
ルクをアジテータ−２２に伝達している。In FIGS. 1 to 4, the turbine nozzle 21 connected to the vacuum cleaner main body via a hose/extension pipe has an agitator chamber 23 containing an agitator 22 in the front and a turbine 24 in the rear. It has a turbine chamber 28 composed of an upper body 26, a lower body 26, and a connecting pipe 27. The connecting tube 27 is rotatably held within a certain range by the upper body 26 and the lower body 26, and is rotatably connected to a connecting tube 29 connected to the hose or extension tube via a connecting ring 3o. The front body 31 is removably connected to the upper body 25 and the lower body 26 by means of a pair of buckles, and covers the agitator chamber 23 from above. The bearing vibe 32 is connected to the turbine 24
A belt 34 is stretched between the end of the turbine shaft 33 opposite to the turbine 24 and a pulley 36 attached to the end of the agitator 22, The rotational torque generated by the rotation of 24 is transmitted to the agitator 22.

３６．３７はアジテータ−室２３とこの後方を区画する
隔壁人、隔壁Ｂで、上本体２５と下本体２６に形成した
壁面を突き合わせて構成し、タービン室２８とアジテー
タ−室２３を連通する通路３８の両側に設けられている
。切換レバー３９は上本体２５より上方に突出した操作
用の摘み４０と、通路３８の一部を閉塞する遮蔽板４１
を一体て有し、遮蔽板４１のほぼ中央部には通風孔４２
が形成されている。摘み４０を第３図に示すようにター
ビン室２８側に位置させたときは、遮蔽板４１が通路３
８の大部分を閉じると同時にタービン２４の前方に通風
孔４２が位置し、上本体２５に形成した吸気口壁４３と
でタービン口４４を形成する。この状態で電気掃除機の
本体を運転すると、タービン口４４を通過してタービン
室２８内に流入する吸気流が高速でタービン２４に衝突
してタービン２４が回転し、ベルト３４で伝達されてア
ジテータ−２２が回転し、じゅうたん掃除の状態になる
。Reference numeral 36 and 37 denote a partition wall B that partitions the agitator chamber 23 and the rear thereof, and is constructed by abutting the walls formed on the upper body 25 and the lower body 26, and is a passageway that communicates the turbine chamber 28 and the agitator chamber 23. It is provided on both sides of 38. The switching lever 39 includes an operating knob 40 that protrudes upward from the upper body 25 and a shielding plate 41 that partially closes the passage 38.
The shielding plate 41 has a ventilation hole 42 approximately in the center thereof.
is formed. When the knob 40 is located on the turbine chamber 28 side as shown in FIG.
At the same time as most of the upper body 8 is closed, a ventilation hole 42 is located in front of the turbine 24, and a turbine port 44 is formed with an intake port wall 43 formed in the upper body 25. When the main body of the vacuum cleaner is operated in this state, the intake air passing through the turbine port 44 and flowing into the turbine chamber 28 collides with the turbine 24 at high speed, causing the turbine 24 to rotate, and is transmitted by the belt 34 to the agitator. -22 rotates and enters the carpet cleaning state.

逆に第２図に示すように摘み４０をタービンノズル２１
の端部側に位置させた時には、遮蔽板４１が吸気口壁４
３の背後に位置してタービン口４４を閉塞し、通風孔４
２が通路３８の摘み４ｏ側を開通させる。この時、ター
ビン２４には吸込気流が直接衝突しないため、タービン
２４及びアジテータ−２２は回転せず、木床や畳面の掃
除状態となる。また遮蔽板４１は上端部と下端部をそれ
ぞれ上本体２５と下本体２６に形成した溝ム４８、溝Ｂ
４９に嵌着されて摺動自在に保持されている。Conversely, as shown in FIG.
When the shielding plate 41 is located on the end side of the intake port wall 4, the shielding plate 41
3 and closes the turbine port 44.
2 opens the knob 4o side of the passage 38. At this time, since the suction air does not directly impinge on the turbine 24, the turbine 24 and the agitator 22 do not rotate, and the wooden floor or tatami surface is cleaned. Further, the shielding plate 41 has an upper end portion and a lower end portion formed in the upper body 25 and the lower body 26, respectively, with a groove 48 and a groove B.
49 and is slidably held.

５０は通風孔４２の摘み４ｏ側端部に、遮蔽板４１に一
体に設けられたリブで、アジテータ−室２３側に突出し
、水平断面が略り字状に形成されている。じゅうたん掃
除状態においては、リブ５゜はタービン口４４の摘み４
０側端部をおおい、木床・畳面掃除状態では、隔壁ム３
６に接し、タービン２４右前方の通路３８を開いた通風
孔４２の摘み４０側端部の一部をおおう。Reference numeral 50 denotes a rib provided integrally with the shielding plate 41 at the end of the ventilation hole 42 on the knob 4o side, protruding toward the agitator chamber 23 side, and having a horizontal cross section shaped like an abbreviated letter. In the carpet cleaning state, the rib 5° is the knob 4 of the turbine port 44.
Cover the end of the 0 side, and when the wooden floor/tatami surface is being cleaned, the partition wall 3
6 and covers a part of the knob 40 side end of the ventilation hole 42 which opens the passage 38 on the right front side of the turbine 24.

次に上記構成に於ける動作ならびに作用について説明す
る。Next, the operation and effect of the above configuration will be explained.

じゅうたん掃除の時には、摘み４ｏをタービン室２２側
に位置させ、アジテータ−室２３からタービン室２８に
流入する吸込気流を、通風孔４２と吸気口壁４３で形成
されたタービン口４４より絞って高速にして流入させる
。流入する吸込気流はタービン２４に高速で衝突し、回
転させる。この回転がベルト３４でアジテータ−２２に
伝達され、アジテータ−２２が回転してじゅうたんなど
の繊維根元の塵埃を掻き上げ、吸引して効率よく掃除で
きる。この状態では、リブ６０はアジテータ−室２３内
に突出しているためタービンノズル２１の中央側よりタ
ービン口４４に流入する吸込気流の遮蔽物となってこれ
を制限し、タービン口４４を通過する吸込気流の流速を
下げてタービンの羽根が吸込気流を断続的に且つ高速で
切るために発生する高周波音の発生を抑制するとともに
、タービン４４のタービンノズル２１の中央側をおおっ
ているため発生する高周波音がタービン口４４を通って
タービン室２日からアジテータ−室２３に、さらにはタ
ービンノズル２１外に洩れることを防ぐ。When cleaning a carpet, the knob 4o is positioned on the turbine chamber 22 side, and the suction airflow flowing from the agitator chamber 23 into the turbine chamber 28 is throttled through the turbine port 44 formed by the ventilation hole 42 and the intake wall 43 to achieve high speed. and let it flow. The incoming suction airflow impinges on the turbine 24 at high speed, causing it to rotate. This rotation is transmitted to the agitator 22 by the belt 34, and the agitator 22 rotates to scrape up the dust at the base of the fibers of the carpet, etc., and suction it to efficiently clean it. In this state, the ribs 60 protrude into the agitator chamber 23 and therefore act as a shield for the suction airflow flowing into the turbine port 44 from the center side of the turbine nozzle 21, thereby restricting the suction airflow passing through the turbine port 44. It reduces the flow velocity of the airflow and suppresses the generation of high-frequency sound that occurs because the turbine blades cut the suction airflow intermittently and at high speed, and also suppresses the high-frequency sound that occurs because the center side of the turbine nozzle 21 of the turbine 44 is covered. Sound is prevented from leaking from the turbine chamber to the agitator chamber 23 through the turbine port 44 and further to the outside of the turbine nozzle 21.

他方、木床・畳面掃除の際には摘み４ｏをタービンノズ
ル２１の端部側に位置するよう切換レバー３９を摺動移
動させる。この状態では、切換レバー３９の移動にとも
なってリブ５ｏが隔壁Ａ３６に接し、同時に通風孔４２
がタービン２４の右前方位置で通路３８を開き、遮蔽板
４１がタービン口４４を閉塞するため、タービン２４に
は直接吸込気流が衝突せずタービン２４は回転しない。On the other hand, when cleaning a wooden floor or a tatami surface, the switching lever 39 is slid so that the knob 4o is located on the end side of the turbine nozzle 21. In this state, as the switching lever 39 moves, the rib 5o comes into contact with the partition wall A36, and at the same time the ventilation hole 42
opens the passage 38 at the right front position of the turbine 24, and the shielding plate 41 closes the turbine port 44, so the intake airflow does not directly impinge on the turbine 24 and the turbine 24 does not rotate.

また、リブ６０は塵埃の吸気通路の端部に位置する結果
、繊維質の塵埃が通過しても引っかかることがない。さ
らに通風孔４２を通過する吸込気流を乱す作用も非常に
低下し、従って吸込気流音の低減を行えるものである。Furthermore, since the rib 60 is located at the end of the dust intake passage, even if fibrous dust passes through it, it will not get caught. Furthermore, the effect of disturbing the suction airflow passing through the ventilation holes 42 is greatly reduced, and therefore the suction airflow noise can be reduced.

発明の詳細 な説明したように、内部にアジテータ−を収容し下面に
吸込口を有するアジテータ−室と、アジテータ−を回転
駆動するタービンを内蔵するタービン室と、これらター
ビン室とアジテータ−室を連通ずる吸気通路と、この吸
気通路のタービン前方を摺動自在に開閉してタービンの
回転、停止を制御する遮蔽板と、タービン室を形成する
上本体と下本体を具備し、前記遮蔽板はアジテータ−室
側に突出した断面略Ｌ字状のリブを有し、このリブはタ
ービン回転状態ではタービン前方の吸気通路のタービン
ノズル中央側の一部をおおい、タービン停止状態では＠
気通路の端部に位置するよう溝底することによって、じ
ゅうたん掃除の際にはタービンが発生する高周波音を低
減し、木床・畳面掃除の際にはリブへの塵埃の引っかが
シをなくし、またリブによる乱流の発生をなくして吸込
気流音の低減を行なえるものである。As described in detail, the invention includes an agitator chamber that houses an agitator therein and has a suction port on its lower surface, a turbine chamber that houses a turbine that rotationally drives the agitator, and a connection between these turbine chambers and the agitator chamber. It includes an intake passage that communicates with the intake passage, a shield plate that slidably opens and closes the front of the turbine in the intake passage to control rotation and stop of the turbine, and an upper body and a lower body that form a turbine chamber, and the shield plate is connected to an agitator. - It has a rib with a substantially L-shaped cross section that protrudes toward the chamber, and when the turbine is rotating, this rib covers a part of the center side of the turbine nozzle in the intake passage in front of the turbine, and when the turbine is stopped, @
By positioning the groove bottom at the end of the air passage, it reduces the high-frequency sound generated by the turbine when cleaning carpets, and prevents dust from getting caught in the ribs when cleaning wooden floors and tatami surfaces. This also eliminates the generation of turbulent flow due to the ribs, thereby reducing intake airflow noise.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施例におけるタービンノズルの上本
体、前本体を外した分解斜視図、第２図は同じく前本体
を外した状態の斜視図、第３図は同じくじゅうたん掃除
状態で前本体を外した斜視図、第４図は同じくタービン
ノズルの中央断面図、第５図は従来例を示すタービンノ
ズルの前本体、回転ブラシを外した分解斜視図、第６図
は同じくタービンノズルの水平断面図である。 ２１・・・・・・タービンノズル、２２・・・・・・ア
ジテータ−１２３・・・・・・アジテータ−室、２４・
・・・・・タービン２６・・・・・・上本体、２６・・
・・・・下本体、２８・・・・・・タービン室、３８・
・・・・・通路、４１・・・・・・遮蔽板、４２・・・
・・通風孔、５０・・・・・・リブ。Figure 1 is an exploded perspective view of a turbine nozzle according to an embodiment of the present invention with the upper body and front body removed, Figure 2 is a perspective view of the turbine nozzle with the front body removed, and Figure 3 is a front view of the turbine nozzle in a carpet cleaning state. FIG. 4 is a central cross-sectional view of the turbine nozzle, FIG. 5 is an exploded perspective view of the front body of the turbine nozzle showing a conventional example, and FIG. 6 is an exploded perspective view with the rotating brush removed. It is a horizontal sectional view. 21... Turbine nozzle, 22... Agitator 123... Agitator chamber, 24...
...Turbine 26...Upper body, 26...
...Lower body, 28...Turbine chamber, 38.
... Passageway, 41 ... Shielding plate, 42 ...
...Ventilation hole, 50...Rib.

Claims (1)

【特許請求の範囲】[Claims] 内部にアジテーターを収容し、下面に吸込口を有するア
ジテーター室と、アジテータを回転駆動するタービンを
内蔵するタービン室と、これらタービン室とアジテータ
ー室を連通する吸気通路と、吸気通路のタービン前方を
摺動自在に開閉してタービンの回転・停止を制御する遮
蔽板と、タービン室を形成する上本体と下本体を具備し
、前記遮蔽板はアジテーター室側に突出した断面略Ｌ字
状のリブを有し、このリブはタービン回転状態ではター
ビン前方の吸気通路のタービンノズル中央側の一部をお
おい、タービン停止状態では吸気通路の反タービン側端
部に位置するよう構成した電気掃除機のタービンノズル
。An agitator chamber that houses an agitator inside and has a suction port on the lower surface, a turbine chamber that houses a turbine that rotationally drives the agitator, an intake passage that communicates these turbine chambers and the agitator chamber, and a sliding section in front of the turbine in the intake passage. The shielding plate is provided with a shielding plate that is movably opened and closed to control rotation and stop of the turbine, and an upper body and a lower body that form a turbine chamber, and the shielding plate has a rib having a substantially L-shaped cross section that protrudes toward the agitator chamber. A turbine nozzle of a vacuum cleaner configured such that the rib covers a part of the center side of the turbine nozzle of the intake passage in front of the turbine when the turbine is rotating, and is located at the end of the intake passage on the side opposite to the turbine when the turbine is stopped. .