JPH1057681A - Rotating angle detection equipment of washing machine - Google Patents
Rotating angle detection equipment of washing machineInfo
- Publication number
- JPH1057681A JPH1057681A JP8223809A JP22380996A JPH1057681A JP H1057681 A JPH1057681 A JP H1057681A JP 8223809 A JP8223809 A JP 8223809A JP 22380996 A JP22380996 A JP 22380996A JP H1057681 A JPH1057681 A JP H1057681A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- rotation angle
- washing
- washing machine
- flange
- 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
Links
- 238000005406 washing Methods 0.000 title claims abstract description 93
- 238000001514 detection method Methods 0.000 title claims abstract description 76
- 239000004519 grease Substances 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000005553 drilling Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 2
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
Landscapes
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
- Optical Transform (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、洗濯機の攪拌翼の
回転角度検出装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotation angle detecting device for a stirring blade of a washing machine.
【０００２】[0002]
【従来の技術】従来、洗濯物の負荷量などを検出するた
め攪拌翼の回転速度を検出する手段として、図５、図６
に示す特開昭６０−１３７３８７号公報に記載のよう
な、洗濯軸に取付けたプーリを利用するものが知られて
いる。2. Description of the Related Art Conventionally, as means for detecting a rotation speed of a stirring blade for detecting a load amount of laundry, etc., FIGS.
Japanese Patent Application Laid-Open No. Sho 60-137387, which uses a pulley attached to a washing shaft, is known.
【０００３】かかる洗濯機を図示に基づき説明すると、
外箱２の内部に、内部に攪拌翼５を配設した洗濯槽４及
びモータ６を配設し、そして、モータ６の駆動軸をモー
タプーリ９、ベルト１０、プーリ８を介して主軸受７で
支持される洗濯軸１７に連結し、洗濯軸１７を攪拌翼５
に結合する構造を有する。[0003] Such a washing machine will be described with reference to the drawings.
A washing tub 4 and a motor 6 in which an agitating blade 5 is disposed are provided inside the outer case 2, and a driving shaft of the motor 6 is connected to a main bearing 7 via a motor pulley 9, a belt 10, and a pulley 8. The washing shaft 17 is connected to the supported washing shaft 17 and the stirring shaft 5
Having a structure that binds to
【０００４】また、プーリ８の平面部に複数の検出孔１
６を所定間隔で円周状に設け、対向位置に配置した発光
部１３ａと受光部１３ｂとで構成する比較透過形センサ
である回転角度検出器１３を、発光部１３ａと受光部１
３ｂがプーリ８の平面部を上下から挟むようにして配設
したものである。Further, a plurality of detection holes 1 are formed in a flat portion of the pulley 8.
6 are provided at predetermined intervals in a circumferential shape, and a rotation angle detector 13 which is a comparative transmission sensor constituted by a light emitting unit 13a and a light receiving unit 13b arranged at opposing positions.
3b is provided so as to sandwich the flat portion of the pulley 8 from above and below.
【０００５】そして、発光部１３ａからの光をプーリ８
の検出孔１６の位置において受光部１３ｂで受光し、受
光により出力するここからのパルス信号を制御装置に送
り、該パルス信号の出力間隔でプーリ８の回転速度、す
なわち攪拌翼５の回転速度を算出する。そして、この回
転速度に基づいて洗濯物の負荷量を判定し、水位、水流
の強さ、洗濯時間などの洗濯内容を設定する。Then, the light from the light emitting section 13a is
At the position of the detection hole 16, a light signal is received by the light receiving unit 13 b, and a pulse signal from the light receiving unit 13 b is sent to the control device. calculate. Then, the load amount of the laundry is determined based on the rotation speed, and the washing contents such as the water level, the strength of the water flow, and the washing time are set.
【０００６】[0006]
【発明が解決しようとする課題】洗濯軸１７に取り付け
たプーリ８を回転速度の検出手段として利用する場合、
きめ細かな洗濯制御を行うためには分解能を上げる必要
があるが、そのための手段の一つとして検出孔１６の数
を多くすることがある。しかし、検出孔１６の数を増加
することはプーリ８の荷重伝達部である平面部に多数の
孔が穿設されることになり、プーリ８の強度が低下する
おそれがある。When the pulley 8 attached to the washing shaft 17 is used as rotation speed detecting means,
In order to perform fine washing control, it is necessary to increase the resolution. One of the means for this is to increase the number of detection holes 16. However, increasing the number of the detection holes 16 causes many holes to be formed in the flat portion, which is the load transmitting portion of the pulley 8, and the strength of the pulley 8 may be reduced.
【０００７】また、回転角度検出器１３は発光部１３ａ
と受光部１３ｂがプーリ８の平面部を上下から挟むよう
にして水平に配設されているため、洗濯軸や脱水軸の隙
間から洩れるグリースや遠心力によりギヤケースの外部
に流出するクラッチスプリングに塗布したグリースが検
出孔１６を通って回転角度検出器１３の発光部１３ａや
受光部１３ｂに落下して汚染する。その結果、回転角度
検出機能が低下する。The rotation angle detector 13 has a light emitting section 13a.
And the light receiving portion 13b are horizontally disposed so as to sandwich the flat portion of the pulley 8 from above and below, so that grease leaking from a gap between the washing shaft and the dehydrating shaft and grease applied to a clutch spring flowing out of the gear case due to centrifugal force are applied. Drop through the detection hole 16 to the light emitting portion 13a and the light receiving portion 13b of the rotation angle detector 13 and become contaminated. As a result, the rotation angle detection function is reduced.
【０００８】本発明の目的は前記従来例の不都合を解消
し、プーリに設ける検出孔によってプーリの強度が低下
することを防止し、ギヤケースから洩れるグリースが回
転角度検出器の発光部や受光部に流れてこれが汚染する
ことを防止できる洗濯機の回転角度検出装置を提供する
ことにある。An object of the present invention is to eliminate the disadvantages of the prior art, to prevent the strength of the pulley from being reduced by the detection hole provided in the pulley, and to allow grease leaking from the gear case to reach the light emitting portion and the light receiving portion of the rotation angle detector. It is an object of the present invention to provide a rotation angle detecting device for a washing machine, which can prevent flowing and contamination of the washing machine.
【０００９】[0009]
【課題を解決するための手段】本発明は前記目的を達成
するため、第１に攪拌翼を配設した洗濯槽を水槽内に回
転自在に設け、洗濯槽下方にモータを配設し、前記攪拌
翼に連結する洗濯軸をプーリ、ベルト、モータプーリを
介して前記モータの駆動軸に連結し、前記プーリに回転
角度の検出孔を複数形成し、該検出孔を挟むようにして
発光部と受光部とを対向させた光透過形の回転角度検出
器をプーリに臨ませてなる洗濯機の回転角度検出装置に
おいて、前記洗濯軸に取り付けたプーリの外周の上下い
ずれか一方にフランジを設け、該フランジに複数の検出
孔を形成することにより、検出孔はプーリの荷重伝達部
である水平部以外の個所に設けられるから、検出孔を多
数設けてもプーリの強度は低下しない。According to the present invention, in order to achieve the above object, first, a washing tub provided with a stirring blade is rotatably provided in a water tub, and a motor is provided below the washing tub. A washing shaft connected to the stirring blade is connected to a drive shaft of the motor via a pulley, a belt, and a motor pulley, a plurality of rotation angle detection holes are formed in the pulley, and a light emitting unit and a light receiving unit are sandwiched between the detection holes. In a rotation angle detection device of a washing machine in which a light transmission type rotation angle detector facing the pulley faces a pulley, a flange is provided on one of upper and lower sides of an outer periphery of a pulley attached to the washing shaft, and the flange is provided on the flange. By forming a plurality of detection holes, the detection holes are provided at locations other than the horizontal portion, which is the load transmitting portion of the pulley, so that the strength of the pulley does not decrease even if a large number of detection holes are provided.
【００１０】第２に攪拌翼を配設した洗濯槽を水槽内に
回転自在に設け、洗濯槽下方にモータを配設し、前記攪
拌翼に連結する洗濯軸をプーリ、ベルト、モータプーリ
を介して前記モータの駆動軸に連結し、前記プーリに回
転角度の検出孔を複数形成し、該検出孔を挟むようにし
て発光部と受光部とを対向させた光透過形の回転角度検
出器をプーリに臨ませてなる洗濯機の回転角度検出装置
において、前記洗濯軸に取り付けたプーリの外周の下側
にフランジを設け、該フランジに複数の検出孔を形成し
たから、プーリの上面平面部に流れ出したグリースは回
転時の遠心力により飛散し、プーリの下側に設けた回転
角度検出器の発光部と受光部とにかかることはない。Second, a washing tub provided with stirring blades is rotatably provided in a water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blades is connected via a pulley, a belt, and a motor pulley. A light transmission type rotation angle detector, in which a plurality of rotation angle detection holes are formed in the pulley and connected to the light emitting unit and the light reception unit so as to sandwich the detection hole, is connected to the drive shaft of the motor. In a rotating angle detection device for a washing machine, a flange is provided below the outer periphery of a pulley attached to the washing shaft, and a plurality of detection holes are formed in the flange. Are scattered by the centrifugal force during rotation and do not hit the light emitting portion and the light receiving portion of the rotation angle detector provided below the pulley.
【００１１】また、プーリに設けられているカシメ孔か
ら下方に流出する少量のグリースはプーリの平面部の下
面に突設した円筒状の壁で遮られ、回転角度検出器の発
光部と受光部を汚染することはない。Further, a small amount of grease flowing downward from a caulking hole provided in the pulley is blocked by a cylindrical wall protruding from the lower surface of the flat portion of the pulley, and a light emitting portion and a light receiving portion of the rotation angle detector are provided. Will not pollute.
【００１２】第３に攪拌翼を配設した洗濯槽を水槽内に
回転自在に設け、洗濯槽下方にモータを配設し、前記攪
拌翼に連結する洗濯軸をプーリ、ベルト、モータプーリ
を介して前記モータの駆動軸に連結し、前記プーリに回
転角度の検出孔を複数形成し、該検出孔を挟むようにし
て発光部と受光部とを対向させた光透過形の回転角度検
出器をプーリに臨ませてなる洗濯機の回転角度検出装置
において、前記洗濯軸に取り付けたプーリの外周の上側
にフランジを設け、該フランジに複数の検出孔を形成し
たから、プーリの平面部の上面に流出しグリースは、プ
ーリの回転時には遠心力により外方に飛ぶが、ここに突
設した円筒状の壁で外方に流れることを阻止され、ここ
に溜まる。Thirdly, a washing tub provided with stirring blades is rotatably provided in a water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blades is connected via pulleys, belts, and motor pulleys. A light transmission type rotation angle detector, in which a plurality of rotation angle detection holes are formed in the pulley and connected to the light emitting unit and the light reception unit so as to sandwich the detection hole, is connected to the drive shaft of the motor. In a rotating angle detecting device for a washing machine, a flange is provided on the outer periphery of a pulley attached to the washing shaft, and a plurality of detection holes are formed in the flange. When the pulley rotates, it flies outward due to centrifugal force, but is prevented from flowing outward by the cylindrical wall protruding here, and accumulates here.
【００１３】そして、プーリの停止時に壁の内側近接位
置の前記平面部に設けたグリース抜き用の孔から下方に
グリースを流出させることで、フランジに設けた検出孔
に臨む回転角度検出器にグリースがかかることを防止で
きる。When the pulley is stopped, the grease is caused to flow downward through a grease removing hole provided in the flat portion at a position close to the inside of the wall, so that the rotation angle detector facing the detection hole provided in the flange is provided with the grease. Can be prevented.
【００１４】第４に光透過形の回転角度検出器は洗濯機
の主軸受に固定するから、取り付けが容易であり、輸送
時の落下衝撃による固定部分の変形で、回転角度検出器
の位置ずれが生ずる心配がない。Fourth, since the light transmission type rotation angle detector is fixed to the main bearing of the washing machine, it is easy to mount, and the position of the rotation angle detector shifts due to deformation of the fixed part due to a drop impact during transportation. There is no worry about the occurrence of
【００１５】第５に光透過形の回転角度検出器は洗濯機
の輸送金具に固定するから、取り付けが容易である。Fifth, since the light transmission type rotation angle detector is fixed to the transport bracket of the washing machine, it can be easily mounted.
【００１６】[0016]
【発明の実施の形態】以下、図面について本発明の実施
の形態を詳細に説明する。図１は本発明の回転角度検出
装置を備えた洗濯機の縦断正面図で、洗濯機の全体構成
は図５、図６について既に説明したように、内部に攪拌
翼５を配設した洗濯槽４を水槽３内に回転自在に配設
し、該水槽３を底枠１２上に設置した外箱２の内部に防
振吊り棒１１を介して設置し、水槽３の下方にモータ６
を配設している。そして、モータ６の駆動軸をモータプ
ーリ９、ベルト１０、プーリ８を介して主軸受７で支持
される洗濯軸１７に連結し、洗濯軸１７を攪拌翼５に結
合する構造を有する。図中、１はトップカバー、１９は
ギヤケース内でクラッチスプリング２０を介して洗濯軸
１７に結合する脱水軸、２３は主軸受７に固定される輸
送金具を示す。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional front view of a washing machine provided with a rotation angle detecting device according to the present invention. The overall configuration of the washing machine is as described above with reference to FIGS. 4 is rotatably disposed in the water tank 3, and the water tank 3 is installed via an anti-vibration hanging rod 11 inside the outer box 2 installed on the bottom frame 12.
Is arranged. The drive shaft of the motor 6 is connected to the washing shaft 17 supported by the main bearing 7 via the motor pulley 9, the belt 10, and the pulley 8, and the washing shaft 17 is connected to the stirring blade 5. In the figure, reference numeral 1 denotes a top cover, 19 denotes a dehydrating shaft connected to the washing shaft 17 via a clutch spring 20 in a gear case, and 23 denotes a transport bracket fixed to the main bearing 7.
【００１７】図２は第１実施形態を示し、回転角度検出
器１３は洗濯軸１７に取り付けたプーリ８を利用するも
ので、プーリ８は皿状の上部８ａと下部８ｂとを結合し
てなり、上部８ａまたは下部８ｂのいずれか一方、図示
の例では上部８ａの平面部８ｄの外周からフランジ８ｃ
を垂直に立ち上げ、該フランジ８ｃに検出孔１６を多数
穿設する。FIG. 2 shows a first embodiment, in which a rotation angle detector 13 uses a pulley 8 attached to a washing shaft 17, and the pulley 8 is formed by connecting a dish-shaped upper portion 8a and a lower portion 8b. , One of the upper part 8a and the lower part 8b, in the illustrated example, the flange 8c extends from the outer periphery of the flat part 8d of the upper part 8a.
Is vertically raised, and a large number of detection holes 16 are formed in the flange 8c.
【００１８】検出孔１６を設けたフランジ８ｃの内側と
外側に位置させ検出孔１６を挟むように対向させて回転
角度検出器１３の発光部１３ａと受光部１３ｂとを垂直
に配設する。図中、１４は回転角度検出器１３の取付台
で、この取付台１４により回転角度検出器１３は主軸受
７に固定される。The light-emitting portion 13a and the light-receiving portion 13b of the rotation angle detector 13 are vertically disposed so as to be positioned inside and outside the flange 8c provided with the detection hole 16 and opposed to sandwich the detection hole 16. In the figure, reference numeral 14 denotes a mount for the rotation angle detector 13, which fixes the rotation angle detector 13 to the main bearing 7.
【００１９】なお、図示の例ではフランジ８ｃは上部８
ａから上方に立ち上げたが、これに限定されるものでは
なく、図３に示す如く下部８ｂから立ち下げてもよい。In the example shown, the flange 8c is located at the upper part 8
Although it has risen upward from a, it is not limited to this, and it may fall from the lower part 8b as shown in FIG.
【００２０】以上のようにしてフランジ８ｃに検出孔１
６を設ける第１実施形態では、検出孔１６を多数形成し
ても荷重伝達部である水平部８ｄ以外の個所に形成され
ることになるから、プーリ８の強度が低下することはな
い。As described above, the detection hole 1 is formed in the flange 8c.
In the first embodiment in which 6 is provided, even if a large number of detection holes 16 are formed, they are formed at locations other than the horizontal portion 8d which is a load transmitting portion, and therefore the strength of the pulley 8 does not decrease.
【００２１】そして、従来と同様にして発光部１３ａか
ら発する光は検出孔１６を透過するものが受光部１３ｂ
で順次検出され、その検出速度によりプーリ８の回転速
度、すなわち該プーリ８の回転速度に対応する攪拌翼５
の回転速度が算出される。As in the conventional case, the light emitted from the light emitting portion 13a is transmitted through the detection hole 16 to the light receiving portion 13b.
The rotation speed of the pulley 8, that is, the stirring blade 5 corresponding to the rotation speed of the pulley 8 is detected by the detected speed.
Is calculated.
【００２２】図３は第２実施形態を示し、プーリ８の下
部８ｂの外周から下方に向けてフランジ８ｃを垂直に立
ち下げ、該フランジ８ｃに検出孔１６を多数穿設する。
そして、上部８ａと下部８ｂとを結合するための平面部
８ｄに設けたカシメ孔２１よりも外周寄りに位置させて
プーリ８の平面部８ｄの下面に円筒状に壁１８を突設し
た。FIG. 3 shows a second embodiment in which a flange 8c is vertically lowered from the outer periphery of a lower portion 8b of the pulley 8 downward, and a number of detection holes 16 are formed in the flange 8c.
The cylindrical wall 18 protrudes from the lower surface of the flat portion 8d of the pulley 8 so as to be located closer to the outer periphery than the caulking hole 21 provided in the flat portion 8d for connecting the upper portion 8a and the lower portion 8b.
【００２３】回転速度検出器１３の取り付けは第１実施
形態と同様にして検出孔１６を設けたフランジ８ｃの内
側と外側に位置させ検出孔１６を挟むように対向させて
発光部１３ａと受光部１３ｂとを垂直に配設する。この
回転角度検出器１３は取付台１４で洗濯機の輸送金具２
３などに固定する。The rotation speed detector 13 is mounted inside and outside the flange 8c provided with the detection hole 16 in the same manner as in the first embodiment. 13b is disposed vertically. The rotation angle detector 13 is mounted on the mounting base 14 by the transport bracket 2 of the washing machine.
3 and so on.
【００２４】次に作用について説明する。フランジ８ｃ
に検出孔１６を形成することによりプーリ８の強度低下
が防止できる点は第１実施形態と同様である。さらに、
この第２実施形態では、ギヤケースから流出し、脱水軸
１９や洗濯軸１７の隙間から洩れるグリース１５やクラ
ッチスプリング２０に塗布したグリース１５がプーリ８
の上部８ａの平面部８ｄの上に流れ出た場合、このグリ
ース１５はプーリ８の回転による遠心力により上部８ａ
の上で飛散する。Next, the operation will be described. Flange 8c
The point that the strength of the pulley 8 can be prevented from being reduced by forming the detection hole 16 in the first embodiment is the same as in the first embodiment. further,
In the second embodiment, the grease 15 flowing out of the gear case and leaking from the clearance between the dehydrating shaft 19 and the washing shaft 17 and the grease 15 applied to the clutch spring 20 are pulled out of the pulley 8.
Grease 15 flows out onto the flat portion 8d of the upper portion 8a of the upper portion 8a due to centrifugal force generated by the rotation of the pulley 8.
Fly over
【００２５】よって、下部８ｂから立ち下げたフランジ
８ｃの位置に配設した回転速度検出器１３にグリース１
５がかかることはない。Therefore, the rotation speed detector 13 provided at the position of the flange 8c lowered from the lower portion 8b has the grease 1
5 does not cost.
【００２６】また、カシメ孔２１を通って上部８ａの平
面部８ｄから下部８ｂに流れ落ちる少量のグリース１５
は、プーリ８の回転中は遠心力によりカシメ孔２１より
外周寄りに位置している壁１８に当たり、ここで受け
る。そして、停止時に壁１８から下方に落下する。よっ
て、下方に流れるグリース１５も回転速度検出器１３に
かかることはなく、グリース１５で発光部１３ａや受光
部１３ｂが汚染されることはない。Also, a small amount of grease 15 flowing down from the flat portion 8d of the upper portion 8a to the lower portion 8b through the caulking hole 21 is formed.
During rotation of the pulley 8, it hits the wall 18 located closer to the outer periphery than the caulking hole 21 due to centrifugal force and is received here. Then, it falls downward from the wall 18 when stopped. Therefore, the grease 15 flowing downward does not reach the rotation speed detector 13, and the light emitting unit 13 a and the light receiving unit 13 b are not contaminated by the grease 15.
【００２７】図４は第３実施形態を示し、フランジ８ｃ
は第１実施形態と同様にプーリ８の上部８ａの外周から
立ち上げ、ここに検出孔１６を設けるものであるが、こ
の第３実施形態ではかかる構成に加えて、上部８ａの平
面部８ｄの上面に円筒状に壁１８を突設し、該壁１８の
内側近接位置の前記平面部８ｄにグリース抜き用の孔２
２を設けた。FIG. 4 shows a third embodiment, in which a flange 8c is provided.
Is raised from the outer periphery of the upper portion 8a of the pulley 8 in the same manner as in the first embodiment, and a detection hole 16 is provided here. In the third embodiment, in addition to such a configuration, the flat portion 8d A wall 18 protrudes cylindrically on the upper surface, and a grease removing hole 2
2 were provided.
【００２８】回転速度検出器１３の取り付けは第１実施
形態と同様にして検出孔１６を設けたフランジ８ｃの内
側と外側に位置させ検出孔１６を挟むように対向させて
発光部１３ａと受光部１３ｂとを垂直に配設する。この
回転角度検出器１３は取付台１４で主軸受７に固定す
る。The rotation speed detector 13 is mounted on the inside and outside of the flange 8c provided with the detection hole 16 in the same manner as in the first embodiment. 13b is disposed vertically. This rotation angle detector 13 is fixed to the main bearing 7 by a mounting base 14.
【００２９】次に作用について説明する。フランジ８ｃ
に検出孔１６を形成することによりプーリ８の強度低下
が防止できる点は第１実施形態と同様である。さらに、
この第３実施形態では、ギヤケースから流出し脱水軸１
９や洗濯軸１７の隙間から洩れるグリース１５やクラッ
チスプリング２０に塗布したグリース１５がプーリ８の
上部８ａの平面部８ｄの上に流れ出た場合、プーリ８の
回転中はこのグリース１５は遠心力で外方に飛ぶが、こ
れを壁１８で受け止められ、壁１８の内周面にへばりつ
いて状態となる。Next, the operation will be described. Flange 8c
The point that the strength of the pulley 8 can be prevented from being reduced by forming the detection hole 16 in the first embodiment is the same as in the first embodiment. further,
In the third embodiment, the dehydrating shaft 1 that flows out of the gear case
When the grease 15 leaking from the gap between the shaft 9 and the washing shaft 17 and the grease 15 applied to the clutch spring 20 flows out onto the flat portion 8d of the upper portion 8a of the pulley 8, the grease 15 is centrifugally applied while the pulley 8 is rotating. Although it flies outward, it is received by the wall 18 and clings to the inner peripheral surface of the wall 18 to be in a state.
【００３０】よって、プーリ８の上部８ａの外周から立
ち上げたフランジ８ｃの位置に配設した回転速度検出器
１３にグリース１５がかかることはない。Therefore, the grease 15 does not splash on the rotation speed detector 13 disposed at the position of the flange 8c raised from the outer periphery of the upper portion 8a of the pulley 8.
【００３１】そして、回転停止時に壁１８の内周面に付
着しているグリース１５は下方に流れ、壁１８の内側近
接位置に開口している孔２２を通ってプーリ８の下方に
落下する。よって、このグリース１５で回転速度検出器
１３の発光部１３ａや受光部１３ｂが汚染されることは
ない。When the rotation is stopped, the grease 15 attached to the inner peripheral surface of the wall 18 flows downward, and falls below the pulley 8 through a hole 22 opened at a position near the inside of the wall 18. Therefore, the light emitting portion 13a and the light receiving portion 13b of the rotation speed detector 13 are not contaminated by the grease 15.
【００３２】[0032]
【発明の効果】以上述べたように本発明の洗濯機の回転
速度検出装置は、第１に攪拌翼を配設した洗濯槽を水槽
内に回転自在に設け、洗濯槽下方にモータを配設し、前
記攪拌翼に連結する洗濯軸をプーリ、ベルト、モータプ
ーリを介して前記モータの駆動軸に連結し、前記プーリ
に回転角度の検出孔を複数形成し、該検出孔を挟むよう
にして発光部と受光部とを対向させた光透過形の回転角
度検出器をプーリに臨ませてなる洗濯機の回転角度検出
装置において、前記洗濯軸に取り付けたプーリの外周の
上下いずれか一方にフランジを設け、該フランジに複数
の検出孔を形成することにより、検出孔はプーリの荷重
伝達部である水平部以外の個所に設けられるから、検出
孔を多数設けてもプーリの強度は低下しない。As described above, the rotation speed detecting device for a washing machine according to the present invention has a washing tub provided with stirring blades provided rotatably in a water tub and a motor provided below the washing tub. Then, a washing shaft connected to the stirring blade is connected to a drive shaft of the motor via a pulley, a belt, and a motor pulley, and a plurality of rotation angle detection holes are formed in the pulley, and a light emitting unit is sandwiched between the detection holes. In a rotation angle detection device of a washing machine in which a light transmission type rotation angle detector facing a light receiving unit faces a pulley, a flange is provided on one of upper and lower sides of an outer periphery of a pulley attached to the washing shaft, By forming a plurality of detection holes in the flange, the detection holes are provided at locations other than the horizontal portion, which is the load transmitting portion of the pulley, so that the strength of the pulley does not decrease even if a large number of detection holes are provided.
【００３３】第２に攪拌翼を配設した洗濯槽を水槽内に
回転自在に設け、洗濯槽下方にモータを配設し、前記攪
拌翼に連結する洗濯軸をプーリ、ベルト、モータプーリ
を介して前記モータの駆動軸に連結し、前記プーリに回
転角度の検出孔を複数形成し、該検出孔を挟むようにし
て発光部と受光部とを対向させた光透過形の回転角度検
出器をプーリに臨ませてなる洗濯機の回転角度検出装置
において、前記洗濯軸に取り付けたプーリの外周の下側
にフランジを設け、該フランジに複数の検出孔を形成し
たから、プーリの上面平面部に流れ出したグリースは回
転時の遠心力により飛散し、プーリの下側に設けた回転
角度検出器の発光部と受光部とにかかることはない。Second, a washing tub provided with stirring blades is rotatably provided in the water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blades is connected via pulleys, belts, and motor pulleys. A light transmission type rotation angle detector, in which a plurality of rotation angle detection holes are formed in the pulley and connected to the light emitting unit and the light reception unit so as to sandwich the detection hole, is connected to the drive shaft of the motor. In a rotating angle detection device for a washing machine, a flange is provided below the outer periphery of a pulley attached to the washing shaft, and a plurality of detection holes are formed in the flange. Are scattered by the centrifugal force during rotation and do not hit the light emitting portion and the light receiving portion of the rotation angle detector provided below the pulley.
【００３４】また、プーリに設けられているカシメ孔か
ら下方に流出する少量のグリースはプーリの平面部の下
面に突設した円筒状の壁で遮られ、回転角度検出器の発
光部と受光部を汚染することはない。A small amount of grease flowing downward from the caulking hole provided in the pulley is blocked by a cylindrical wall protruding from the lower surface of the flat portion of the pulley, and the light emitting portion and the light receiving portion of the rotation angle detector are provided. Will not pollute.
【００３５】第３に攪拌翼を配設した洗濯槽を水槽内に
回転自在に設け、洗濯槽下方にモータを配設し、前記攪
拌翼に連結する洗濯軸をプーリ、ベルト、モータプーリ
を介して前記モータの駆動軸に連結し、前記プーリに回
転角度の検出孔を複数形成し、該検出孔を挟むようにし
て発光部と受光部とを対向させた光透過形の回転角度検
出器をプーリに臨ませてなる洗濯機の回転角度検出装置
において、前記洗濯軸に取り付けたプーリの外周の上側
にフランジを設け、該フランジに複数の検出孔を形成し
たから、プーリの平面部の上面に流出しグリースは、プ
ーリの回転中は遠心力により外方に飛ぶが、ここに突設
した円筒状の壁で外方に流れることを阻止され、ここに
溜まる。Third, a washing tub provided with stirring blades is rotatably provided in the water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blades is connected via a pulley, a belt, and a motor pulley. A light transmission type rotation angle detector, in which a plurality of rotation angle detection holes are formed in the pulley and connected to the light emitting unit and the light reception unit so as to sandwich the detection hole, is connected to the drive shaft of the motor. In a rotating angle detecting device for a washing machine, a flange is provided on the outer periphery of a pulley attached to the washing shaft, and a plurality of detection holes are formed in the flange. While the pulley is rotating, it flies outward due to centrifugal force, but is prevented from flowing outward by the cylindrical wall protruding here, and accumulates here.
【００３６】そして、プーリの停止時に壁の内側近接位
置の前記平面部に設けたグリース抜き用の孔から下方に
グリースを流出させることで、フランジに設けた検出孔
に臨む回転角度検出器にグリースがかかることを防止で
きる。When the pulley is stopped, the grease flows downward from the grease removing hole provided in the flat portion at the position close to the inner side of the wall, so that the rotation angle detector facing the detection hole provided in the flange can be used. Can be prevented.
【００３７】第４に光透過形の回転角度検出器は洗濯機
の主軸受に固定するから、取り付けが容易であり、輸送
時の落下衝撃による固定部分の変形で、回転角度検出器
の位置ずれが生ずる心配がない。Fourth, since the light transmission type rotation angle detector is fixed to the main bearing of the washing machine, it is easy to mount, and the position of the rotation angle detector is shifted due to deformation of the fixed part due to a drop impact during transportation. There is no worry about the occurrence of
【００３８】第５に光透過形の回転角度検出器は洗濯機
の輸送金具に固定するから、取り付けが容易である。Fifth, since the light transmission type rotation angle detector is fixed to the transport bracket of the washing machine, it is easy to mount.
【図１】 本発明の回転速度検出装置を備えた洗濯機の
縦断正面図である。FIG. 1 is a vertical sectional front view of a washing machine provided with a rotation speed detecting device of the present invention.
【図２】 本発明の洗濯機の回転速度検出装置の第１実
施形態を示す縦断正面図である。FIG. 2 is a vertical sectional front view showing the first embodiment of the rotation speed detecting device of the washing machine of the present invention.
【図３】 本発明の洗濯機の回転速度検出装置の第２実
施形態を示す縦断正面図である。FIG. 3 is a vertical sectional front view showing a second embodiment of the rotation speed detecting device of the washing machine of the present invention.
【図４】 本発明の洗濯機の回転速度検出装置の第３実
施形態を示す縦断正面図である。FIG. 4 is a vertical sectional front view showing a third embodiment of the rotation speed detection device for a washing machine of the present invention.
【図５】 従来の回転速度検出装置を備えた洗濯機の縦
断正面図である。FIG. 5 is a longitudinal sectional front view of a washing machine provided with a conventional rotation speed detecting device.
【図６】 従来の回転速度検出装置の平面図である。FIG. 6 is a plan view of a conventional rotation speed detection device.
１…トップカバー ２…外箱 ３…水槽 ４…洗濯槽 ５…攪拌翼 ６…モータ ７…主軸受 ８…プーリ ８ａ…上部 ８ｂ…下部 ８ｃ…フランジ ８ｄ…平面部 ９…モータプーリ １０…ベルト １１…防振吊り棒 １２…底枠 １３…回転角度検出器 １３ａ…発光部 １３ｂ…受光部 １４…取付台 １５…グリース １６…検出孔 １７…洗濯軸 １８…壁 １９…脱水軸 ２０…クラッチスプリング ２１…カシメ孔 ２２…孔 ２３…輸送金具 DESCRIPTION OF SYMBOLS 1 ... Top cover 2 ... Outer box 3 ... Water tank 4 ... Washing tank 5 ... Stirring blade 6 ... Motor 7 ... Main bearing 8 ... Pulley 8a ... Upper part 8b ... Lower part 8c ... Flange 8d ... Flat part 9 ... Motor pulley 10 ... Belt 11 ... Vibration-proof hanging rod 12 ... Bottom frame 13 ... Rotation angle detector 13a ... Light emitting part 13b ... Light receiving part 14 ... Mounting base 15 ... Grease 16 ... Detection hole 17 ... Washing shaft 18 ... Wall 19 ... Dehydrating shaft 20 ... Clutch spring 21 ... Caulking hole 22 ... Hole 23 ... Transport bracket
───────────────────────────────────────────────────── フロントページの続き (72)発明者 三吉 淳二 千葉県船橋市山手一丁目１番１号 日本建 鐵株式会社内 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Junji Miyoshi 1-1-1 Yamate, Funabashi-shi, Chiba
Claims (5)
自在に設け、洗濯槽下方にモータを配設し、前記攪拌翼
に連結する洗濯軸をプーリ、ベルト、モータプーリを介
して前記モータの駆動軸に連結し、前記プーリに回転角
度の検出孔を複数形成し、該検出孔を挟むようにして発
光部と受光部とを対向させた光透過形の回転角度検出器
をプーリに臨ませてなる洗濯機の回転角度検出装置にお
いて、前記洗濯軸に取り付けたプーリの外周の上下いず
れか一方にフランジを設け、該フランジに複数の検出孔
を形成したことを特徴とする洗濯機の回転角度検出装
置。1. A washing tub provided with stirring blades is rotatably provided in a water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blades is connected to the washing shaft via a pulley, a belt, and a motor pulley. It is connected to the drive shaft of the motor, a plurality of rotation angle detection holes are formed in the pulley, and a light transmission type rotation angle detector in which the light emitting unit and the light receiving unit are opposed to each other so as to sandwich the detection hole, faces the pulley. A rotation angle detecting device for a washing machine, comprising: a flange provided on one of upper and lower sides of an outer periphery of a pulley attached to the washing shaft; and a plurality of detection holes formed in the flange. Detection device.
自在に設け、洗濯槽下方にモータを配設し、前記攪拌翼
に連結する洗濯軸をプーリ、ベルト、モータプーリを介
して前記モータの駆動軸に連結し、前記プーリに回転角
度の検出孔を複数形成し、該検出孔を挟むようにして発
光部と受光部とを対向させた光透過形の回転角度検出器
をプーリに臨ませてなる洗濯機の回転角度検出装置にお
いて、前記洗濯軸に取り付けたプーリの外周の下側にフ
ランジを設け、該フランジに複数の検出孔を形成し、該
プーリに設けられているカシメ孔よりも外周寄りに位置
させてプーリの平面部の下面に円筒状に壁を突設したこ
とを特徴とする洗濯機の回転角度検出装置。2. A washing tub provided with stirring blades is rotatably provided in a water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blades is connected to the washing shaft via a pulley, a belt, and a motor pulley. It is connected to the drive shaft of the motor, a plurality of rotation angle detection holes are formed in the pulley, and a light transmission type rotation angle detector in which the light emitting unit and the light receiving unit are opposed to each other so as to sandwich the detection hole, faces the pulley. In the rotation angle detection device for a washing machine, a flange is provided below the outer periphery of a pulley attached to the washing shaft, a plurality of detection holes are formed in the flange, and a plurality of detection holes are formed in the flange. A rotation angle detecting device for a washing machine, wherein a cylindrical wall is protruded from a lower surface of a flat portion of a pulley so as to be located near an outer periphery.
自在に設け、洗濯槽下方にモータを配設し、前記攪拌翼
に連結する洗濯軸をプーリ、ベルト、モータプーリを介
して前記モータの駆動軸に連結し、前記プーリに回転角
度の検出孔を複数形成し、該検出孔を挟むようにして発
光部と受光部とを対向させた光透過形の回転角度検出器
をプーリに臨ませてなる洗濯機の回転角度検出装置にお
いて、前記洗濯軸に取り付けたプーリの外周の上側にフ
ランジを設け、該フランジに複数の検出孔を形成し、プ
ーリの平面部の上面に円筒状に壁を突設し、該壁の内側
近接位置の前記平面部にグリース抜き用の孔を設けたこ
とを特徴とする洗濯機の回転角度検出装置。3. A washing tub provided with a stirring blade is rotatably provided in a water tub, a motor is provided below the washing tub, and a washing shaft connected to the stirring blade is connected to the washing tub via a pulley, a belt, and a motor pulley. It is connected to the drive shaft of the motor, a plurality of rotation angle detection holes are formed in the pulley, and a light transmission type rotation angle detector in which the light emitting unit and the light receiving unit are opposed to each other so as to sandwich the detection hole, faces the pulley. In the rotation angle detection device for a washing machine, a flange is provided on the outer periphery of a pulley attached to the washing shaft, a plurality of detection holes are formed in the flange, and a cylindrical wall is formed on an upper surface of a flat portion of the pulley. A rotation angle detecting device for a washing machine, wherein a projection is provided, and a hole for removing grease is provided in the flat portion near the inner side of the wall.
の主軸受に固定されることを特徴とする請求項１または
請求項２に記載の洗濯機の回転角度検出装置。4. The rotation angle detecting device for a washing machine according to claim 1, wherein the light transmission type rotation angle detector is fixed to a main bearing of the washing machine.
の輸送金具に固定されることを特徴とする請求項１また
は請求項３に記載の洗濯機の回転角度検出装置。5. The rotation angle detecting device for a washing machine according to claim 1, wherein the light transmission type rotation angle detector is fixed to a transport bracket of the washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8223809A JPH1057681A (en) | 1996-08-26 | 1996-08-26 | Rotating angle detection equipment of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8223809A JPH1057681A (en) | 1996-08-26 | 1996-08-26 | Rotating angle detection equipment of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1057681A true JPH1057681A (en) | 1998-03-03 |
Family
ID=16804068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8223809A Pending JPH1057681A (en) | 1996-08-26 | 1996-08-26 | Rotating angle detection equipment of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1057681A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1607729A1 (en) * | 2004-06-18 | 2005-12-21 | Diehl AKO Stiftung & Co. KG | Device for the detection of an oscillating movement of a drum of a laundry machine |
| KR101351144B1 (en) * | 2010-11-09 | 2014-01-15 | 위니아만도 주식회사 | A Drum disk and Sensing method for direction of rotation |
| JP2020061852A (en) * | 2018-10-09 | 2020-04-16 | ファナック株式会社 | Gear for detecting rotation, rotation detector, and dynamo-electric motor |
-
1996
- 1996-08-26 JP JP8223809A patent/JPH1057681A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1607729A1 (en) * | 2004-06-18 | 2005-12-21 | Diehl AKO Stiftung & Co. KG | Device for the detection of an oscillating movement of a drum of a laundry machine |
| KR101351144B1 (en) * | 2010-11-09 | 2014-01-15 | 위니아만도 주식회사 | A Drum disk and Sensing method for direction of rotation |
| JP2020061852A (en) * | 2018-10-09 | 2020-04-16 | ファナック株式会社 | Gear for detecting rotation, rotation detector, and dynamo-electric motor |
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