JPH0824638B2 - Electric vacuum cleaner - Google Patents
Electric vacuum cleanerInfo
- Publication number
- JPH0824638B2 JPH0824638B2 JP2143169A JP14316990A JPH0824638B2 JP H0824638 B2 JPH0824638 B2 JP H0824638B2 JP 2143169 A JP2143169 A JP 2143169A JP 14316990 A JP14316990 A JP 14316990A JP H0824638 B2 JPH0824638 B2 JP H0824638B2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum cleaner
- wheel
- bearing portion
- main case
- hole
- 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.)
- Expired - Lifetime
Links
Landscapes
- Electric Suction Cleaners (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、本体底部に床移動用の車輪を有する電気掃
除機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having wheels for floor movement at the bottom of a main body.
従来の技術 従来の床移動用の電気掃除機の車輪は、電気掃除機の
前部に一つと後部に二つ設けたものが一般的である。2. Description of the Related Art Wheels of conventional vacuum cleaners for moving floors are generally provided with one wheel at the front and two wheels at the rear of the vacuum cleaner.
第５図はそのような電気掃除機の後面部分の構成を示
す図である。図に示すように、主体ケース21はモータ
（図示せず）などを内部に設け、後部両側部には床移動
用の車輪22を回転自在に保持するための軸受け部23が円
筒状に一体的に設けられ、その孔24は主体ケース21を内
外に貫通して形成されている。FIG. 5 is a diagram showing a configuration of a rear surface portion of such an electric vacuum cleaner. As shown in the figure, the main case 21 is provided with a motor (not shown) and the like, and bearing portions 23 for rotatably holding wheels 22 for floor movement are integrally formed in a cylindrical shape on both sides of the rear portion. The hole 24 is formed through the main case 21 in and out.
また、車輪22はその中央に設けた回転軸25により軸受
け部23と係合し、回転軸25の先端の爪26を孔24の縁に係
止して抜けないようにしている。さらに車輪22の回転ぶ
れなどが生じても主体ケース22にすれないように車輪22
と主体ケース21の間には３〜4mmの隙間SIが設けられて
いる。Further, the wheel 22 is engaged with the bearing portion 23 by the rotating shaft 25 provided at the center thereof, and the claw 26 at the tip of the rotating shaft 25 is locked to the edge of the hole 24 so as not to come off. In addition, even if the wheel 22 is shaken by rotation,
A gap SI of 3 to 4 mm is provided between and the main case 21.
上記の構成により電気掃除機は床面を自在に移動でき
るようになっている。With the above configuration, the electric vacuum cleaner can freely move on the floor surface.
発明が解決しようとする課題 このような従来の車輪22の取り付け構造では、爪26を
設けるために爪高さHIが5mm程度必要であり、また爪26
は車輪22の回転とともに回転するため、その近傍には爪
26と接触して摩耗すると危険な内部配線用の電線などを
配設することができなかった。また車輪WIや隙間SIや主
体ケース21の肉厚などはその機能上薄くしたり狭くする
ことができない。そのため、爪高さHIの２倍分だけ電気
掃除機の幅方向寸法を大きくせざるをえず、電気掃除機
の小型軽量化への妨げとなっていた。さらに、円筒状の
軸受け部23の孔24が主体ケース21の内部へ貫通している
ため、矢印イ方向にモータより排出された排気風が流
れ、孔24と回転軸25の間を通過して外部に漏れる。この
気流は電気掃除機の運転騒音が高くなる要因の１つとな
っていた。In the conventional mounting structure of the wheel 22 as described above, the pawl height HI is required to be about 5 mm in order to provide the pawl 26, and the pawl 26
Rotates as the wheels 22 rotate,
It was not possible to arrange electric wires for internal wiring, which would be dangerous if it comes into contact with 26 and wears. Further, the wheel WI, the gap SI, and the wall thickness of the main case 21 cannot be thinned or narrowed due to their functions. Therefore, the size of the vacuum cleaner in the width direction has to be increased by twice the height HI of the nail, which is an obstacle to reducing the size and weight of the vacuum cleaner. Further, since the hole 24 of the cylindrical bearing portion 23 penetrates into the main case 21, exhaust air discharged from the motor flows in the direction of arrow a and passes between the hole 24 and the rotary shaft 25. It leaks to the outside. This air flow is one of the factors that increase the operating noise of the electric vacuum cleaner.
本発明はこのような課題を解決するもので、電気掃除
機本体の幅を大きくせず、運転騒音を高くしない車輪の
取り付け機構を提供することを目的とするものである。The present invention solves such a problem, and an object of the present invention is to provide a wheel mounting mechanism that does not increase the width of the vacuum cleaner body and does not increase operating noise.
課題を解決するための手段 この目的を達成するために本発明は、主体ケースの底
部に移動用の車輪を配置し、前記車輪に一体で、かつ突
出した回転軸を設け、回転軸を回転自在に保持する円筒
状の軸受け部を主体ケース後部側面に一体に成形し、前
記円筒状の軸受け部の孔を主体ケース内部に貫通しない
ように形成すると共に、前記軸受け部の孔壁内周に、回
転軸に形成した爪を係合させる環状の段部を形成し、前
記軸受け部には、前記段部に連通し、かつ前記孔壁の段
部を形成する金型を抜く際に形成される開口部を設け、
前記開口部は前記孔壁の段部を形成する金型を抜く際に
形成されるものである。Means for Solving the Problems In order to achieve this object, the present invention provides a wheel for movement at the bottom of a main body case, a rotary shaft that is integral with the wheel and that protrudes, and is rotatable. A cylindrical bearing portion to be held on the main case rear side surface integrally formed, the hole of the cylindrical bearing portion is formed so as not to penetrate into the main case, the inner periphery of the hole wall of the bearing portion, An annular step portion for engaging a claw formed on the rotary shaft is formed, and the bearing portion is formed when the mold that communicates with the step portion and forms the step portion of the hole wall is removed. With an opening,
The opening is formed when the mold forming the stepped portion of the hole wall is removed.
作用 この構成により、車輪の回転軸端面に設けた固定用の
爪が主体ケース内に露出しないので、内部配線などが車
輪取り付け部近傍に配設されても、内部配線などが車輪
の回転軸により摩耗し、損傷をうけることがなくなる。Action With this configuration, the fixing claws provided on the end surface of the wheel rotation shaft are not exposed inside the main case, so even if internal wiring or the like is arranged near the wheel mounting portion, the internal wiring will not be It will not wear out and be damaged.
また、主体ケースと一体的に設けた軸受け部の孔が主
体ケース内部に貫通していないため、車輪取り付け部よ
りモータの排気風が漏れて、運転音が高くなることはな
い。Further, since the hole of the bearing portion provided integrally with the main case does not penetrate into the main case, the exhaust air of the motor does not leak from the wheel mounting portion and the operating noise does not increase.
さらに、車輪の固定爪が主体ケース内部に露出しない
構造になっているので、両側の車輪の爪の高さの分だけ
主体ケースの全幅を小さくすることができ、電気掃除機
の小型化がはかれることとなる。また、回転軸の爪が係
合する段部と連通した開口部を開口させているので、万
が一、軸受け部内の段部にゴミが溜まっても、回転軸の
爪の回動により開口部から掻き出される。Further, since the fixing claws of the wheels are not exposed inside the main case, the entire width of the main case can be reduced by the height of the claws of the wheels on both sides, and the vacuum cleaner can be downsized. It will be. Further, since the opening communicating with the step with which the claw of the rotary shaft is engaged is opened, even if dust should collect on the step inside the bearing, the rotation of the claw of the rotary shaft scrapes it from the opening. Will be issued.
実施例 以下、本発明の実施例を図面を用いて説明する。Embodiments Embodiments of the present invention will be described below with reference to the drawings.
第１図および第２図に本発明の一実施例の電気掃除機
の構成を示す。第１図に示すように、主体ケース１は上
部にダスト蓋２および上部ボデー３を載置し、底面には
床移動用の小型回転車輪４および車輪５が回転自在に保
持されている。1 and 2 show the structure of an electric vacuum cleaner according to an embodiment of the present invention. As shown in FIG. 1, a main body case 1 has a dust lid 2 and an upper body 3 mounted on the top thereof, and small rotating wheels 4 and 5 for floor movement are rotatably held on the bottom surface.
第１図のＡ−Ａ線断面を第２図に示す。図に示すよう
に床移動用の車輪５はその中央部に円筒状の回転軸６が
一体的に設けられ、回転軸６の先端には爪７が設けられ
ている。A cross section taken along the line AA of FIG. 1 is shown in FIG. As shown in the figure, the wheel 5 for floor movement is integrally provided with a cylindrical rotating shaft 6 at the center thereof, and a pawl 7 is provided at the tip of the rotating shaft 6.
車輪５を保持する主体ケース１の後部側面には、回転
軸６が孔８を回転しゅう動する円筒状の軸受け部９が一
体的に形成されている。A cylindrical bearing portion 9 on which a rotary shaft 6 slides in a hole 8 is integrally formed on a rear side surface of a main case 1 that holds a wheel 5.
また、前述の軸受け部９は第３図に示すようにその孔
８を主体ケース１の後部側壁10に平行に矢印ロ方向に移
動する断面Ｕ字状の金型11と紙面に垂直方向に移動する
断面円形状の金型12を用いて射出成型され、第２図に示
すように孔８は側壁10により主体ケース１の内部に貫通
しないようになっている。そして、金型11により軸受け
部９の孔８の内周壁に段部が形成され、回転軸６の爪７
は軸受け部９の孔８の内周壁に形成した段部に係合して
抜け出ないようになっている。また、軸受け部９の下方
には金型11を引き抜くための開口部が設けられ、段部に
溜まったゴミなどが爪７の回動動作で開口部に運ばれ、
その開口部から下方に掻き出され、長期にわたり車輪５
の回転動作を円滑にすることができるものである。Further, as shown in FIG. 3, the above-mentioned bearing portion 9 moves in its hole 8 in a direction perpendicular to the plane of the drawing with a die 11 having a U-shaped cross section that moves in parallel with the rear side wall 10 of the main case 1 in the arrow B direction. It is injection-molded by using a metal mold 12 having a circular cross section, and as shown in FIG. 2, the hole 8 is prevented from penetrating into the main case 1 by the side wall 10. Then, a step portion is formed on the inner peripheral wall of the hole 8 of the bearing portion 9 by the mold 11, and the claw 7 of the rotary shaft 6 is formed.
Is engaged with a step portion formed on the inner peripheral wall of the hole 8 of the bearing portion 9 so as not to come out. In addition, an opening for pulling out the mold 11 is provided below the bearing portion 9, and dust and the like collected in the stepped portion is carried to the opening by the rotation operation of the claw 7.
The wheel 5 is scraped downward from the opening for a long time.
It is possible to smoothly perform the rotating operation of.
以上の構成において、第２図に示すように主体ケース
１に一体的に設けた軸受け部９の孔８を主体ケース１の
内部に貫通させないことにより、主体ケース１内に設け
たモータ（図示せず）の排気風が軸受け部９より漏れる
ことがないため、電気掃除機運転時の騒音が軸受部から
機外に漏れることがなく、電気掃除機の騒音を低下させ
ることができる。In the above configuration, as shown in FIG. 2, a hole (8) of a bearing portion 9 integrally provided in the main case 1 is not penetrated into the main case 1, so that a motor (not shown) provided in the main case 1 is provided. Since the exhaust air (1) does not leak from the bearing portion 9, noise during operation of the electric vacuum cleaner does not leak out of the machine from the bearing portion, and the noise of the electric vacuum cleaner can be reduced.
また車輪５の爪７が主体ケース１内部に露出していな
いため、側壁10近傍の空間に内部配線等を行っても損傷
の心配はない。さらに第５図の従来例に示した車輪幅WI
および車輪22と主体ケース21との隙間SIを変えずに爪26
の高さHIの寸法だけ第１図の側壁10を矢印ハ方向へ狭め
ることができる。その結果、第４図に示すように車輪５
の外寸幅W2をW3に狭めることができ、電気掃除機の前幅
W4を小さくできる効果がある。Further, since the claws 7 of the wheel 5 are not exposed inside the main case 1, there is no risk of damage even if internal wiring is provided in the space near the side wall 10. Further, the wheel width WI shown in the conventional example of FIG.
And the nail 26 without changing the clearance SI between the wheel 22 and the main case 21.
The side wall 10 in FIG. 1 can be narrowed in the direction of the arrow C by the height HI. As a result, as shown in FIG.
The outer width W2 of the vacuum cleaner can be reduced to W3.
It has the effect of reducing W4.
発明の効果 以上の実施例の説明より明らかなように、本発明の電
気掃除機は主体ケース後部側面に設けた床移動用の車輪
を回転自在に保持する軸受け部の孔を主体ケース内部と
連通しないように設けることにより、車輪に設けた固定
用の爪が主体ケース内部に露出しなくなり、内部配線を
軸受け部近くに設けても車輪の爪により損傷をうけるこ
とはない。また、軸受け部よりモータの排気風が漏れて
電気掃除機の運転騒音が大きくなることがない。EFFECTS OF THE INVENTION As is apparent from the above description of the embodiment, the electric vacuum cleaner of the present invention has the hole of the bearing portion, which is provided on the rear side surface of the main case and rotatably holds the floor moving wheel, communicates with the inside of the main case. By disabling it, the fixing claws provided on the wheel are not exposed inside the main case, and even if the internal wiring is provided near the bearing portion, it is not damaged by the wheel claws. Further, the exhaust noise of the motor does not leak from the bearing portion, and the operating noise of the electric vacuum cleaner does not increase.
また、車輪幅や車輪と主体ケースとの隙間間隔を狭め
ることなく車輪外寸幅を小さくすることができるため、
電気掃除機の全体幅も小さくすることができるという効
果が得られる。また、軸受け部の下方には段部と連通す
る開口部が設けられ、段部に溜まったゴミなどが爪の回
動動作で開口部に運ばれ、その開口部から掻き出され、
長期にわたり車輪の回転動作を円滑にすることができ
る。Further, since the outer width of the wheel can be reduced without narrowing the width of the wheel or the gap between the wheel and the main case,
The effect that the entire width of the electric vacuum cleaner can also be reduced is obtained. In addition, an opening communicating with the step is provided below the bearing, and dust and the like collected in the step is carried to the opening by the rotation of the claws and scraped out from the opening.
It is possible to smoothly rotate the wheels for a long period of time.
第１図は本発明の一実施例の電気掃除機の側面図、第２
図は同第１図のＡ−Ａ線断面図、第３図は同実施例の主
体ケースの部分拡大図、第４図は同実施例の裏面図、第
５図は従来例の電気掃除機の後部部分の断面図である。 １……主体ケース、５……車輪、６……回転軸、８……
孔、９……軸受け部、10……側壁。FIG. 1 is a side view of an electric vacuum cleaner according to an embodiment of the present invention, and FIG.
1 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a partially enlarged view of the main body case of the same embodiment, FIG. 4 is a rear view of the same embodiment, and FIG. 5 is a conventional vacuum cleaner. It is sectional drawing of the rear part. 1 ... Main case, 5 ... Wheels, 6 ... Rotation axis, 8 ...
Hole, 9 ... Bearing, 10 ... Side wall.
Claims (1)
し、前記車輪に一体で、かつ突出した回転軸を設け、回
転軸を回転自在に保持する円筒状の軸受け部を主体ケー
ス後部側面に一体に成形し、前記円筒状の軸受け部の孔
を主体ケース内部に貫通しないように形成すると共に、
前記軸受け部の孔壁内周に、回転軸に形成した爪を係合
させる環状の段部を形成し、前記軸受け部には、前記段
部に連通し、かつ前記孔壁の段部を形成する金型を抜く
際に形成される開口部を設け、前記開口部は前記孔壁の
段部を形成する金型を抜く際に形成される電気掃除機。1. A rear side surface of a main body case in which a moving wheel is arranged on a bottom portion of the main body case, a rotary shaft integrally provided with the wheel is provided, and a cylindrical bearing portion for rotatably holding the rotary shaft is provided. Is integrally molded into the main body case so that the hole of the cylindrical bearing portion does not penetrate into the main case,
An annular step portion for engaging a claw formed on the rotating shaft is formed on the inner periphery of the hole wall of the bearing portion, and the bearing portion is formed with a step portion of the hole wall communicating with the step portion. An electric vacuum cleaner that is formed when removing a mold that forms a stepped portion of the hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2143169A JPH0824638B2 (en) | 1990-05-31 | 1990-05-31 | Electric vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2143169A JPH0824638B2 (en) | 1990-05-31 | 1990-05-31 | Electric vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0435629A JPH0435629A (en) | 1992-02-06 |
| JPH0824638B2 true JPH0824638B2 (en) | 1996-03-13 |
Family
ID=15332523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2143169A Expired - Lifetime JPH0824638B2 (en) | 1990-05-31 | 1990-05-31 | Electric vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0824638B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794507U (en) * | 1980-12-03 | 1982-06-10 | ||
| JPS59160045U (en) * | 1983-04-13 | 1984-10-26 | 松下電器産業株式会社 | vacuum cleaner wheel device |
-
1990
- 1990-05-31 JP JP2143169A patent/JPH0824638B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435629A (en) | 1992-02-06 |
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