JP2020097983A - Drain valve driving device - Google Patents

Drain valve driving device Download PDF

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Publication number
JP2020097983A
JP2020097983A JP2018235970A JP2018235970A JP2020097983A JP 2020097983 A JP2020097983 A JP 2020097983A JP 2018235970 A JP2018235970 A JP 2018235970A JP 2018235970 A JP2018235970 A JP 2018235970A JP 2020097983 A JP2020097983 A JP 2020097983A
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Japan
Prior art keywords
wire
case
pulley
opening
drain valve
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Ceased
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JP2018235970A
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Japanese (ja)
Inventor
敏臣 宮下
Toshiomi Miyashita
敏臣 宮下
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Nidec Instruments Corp
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Nidec Sankyo Corp
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Priority to JP2018235970A priority Critical patent/JP2020097983A/en
Priority to CN201922221447.2U priority patent/CN211231807U/en
Priority to CN201911273430.XA priority patent/CN111336307B/en
Publication of JP2020097983A publication Critical patent/JP2020097983A/en
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/46—Mechanical actuating means for remote operation
    • F16K31/465—Mechanical actuating means for remote operation by flexible transmission means, e.g. cable, chain, bowden wire
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

To restrain a wire from coming off from a pulley in a drain valve driving device which includes the wire connected to a drain valve and the pulley.SOLUTION: A drain valve driving device 1 includes: a wire 10 to which a drain valve is connected; a pulley 11 connected to the wire 10; a motor 40 and a gear unit 2 for driving the pulley 11; and a case 20 for storing the pulley 11, the motor 40, and the gear unit 2. The case 20 includes an opening 23 for drawing the wire 10 to the outside, and a wire position regulating portion 19 for regulating a position of the wire 10 between the opening 23 and the pulley 11. The wire position regulating portion 19 is in a wall shape, and a gap S between the wire position regulating portion 19 and the pulley 11 is smaller than a wire diameter D as viewed in a direction (+Y direction) from the opening 23 to the pulley 11; therefore, the wire 10 can be moved only within the range not coming off from the pulley 11.SELECTED DRAWING: Figure 8

Description

本発明は、排水弁を開閉する排水弁駆動装置に関する。 The present invention relates to a drain valve drive device that opens and closes a drain valve.

洗濯機等の排水弁を開閉する排水弁駆動装置として、排水弁に連結される排水弁駆動部材と、排水弁駆動部材を駆動するギアードモータを備えたものがある。特許文献１には、排水弁駆動部材としてワイヤを備えた排水弁駆動装置が開示される。特許文献１において、ギアードモータは、ケースと、ケースの内側に収容されるモータ部および伝達輪列を備える。モータ部の駆動力は、伝達輪列によってプーリに伝達される。 2. Description of the Related Art As a drain valve driving device for opening and closing a drain valve of a washing machine or the like, there is one that includes a drain valve driving member connected to the drain valve and a geared motor driving the drain valve driving member. Patent Document 1 discloses a drain valve drive device including a wire as a drain valve drive member. In Patent Document 1, a geared motor includes a case, a motor unit housed inside the case, and a transmission train wheel. The driving force of the motor section is transmitted to the pulley by the transmission train wheel.

特許文献１の排水弁駆動装置は、モータ部から伝達輪列への回転トルクの伝達を継断するクラッチ機構と、伝達輪列の回転を規制する回転規制機構を備える。クラッチ切断状態になるとき、伝達輪列の回転が規制されて、外力によって排水弁駆動部材が移動しない負荷保持状態が形成される。負荷保持状態では、外力によってワイヤが引っ張られる。 The drain valve driving device of Patent Document 1 includes a clutch mechanism that continuously disconnects the transmission of the rotational torque from the motor unit to the transmission train wheel, and a rotation regulation mechanism that regulates the rotation of the transmission train wheel. When the clutch is in the disengaged state, the rotation of the transmission train wheel is restricted, and a load holding state in which the drain valve driving member does not move due to an external force is formed. In the load holding state, the wire is pulled by the external force.

特開２０１８−２６９３８号公報JP, 2018-26938, A

特許文献１では、排水弁駆動部材として可撓性のワイヤを用いているため、ワイヤに連結される排水弁の配置によっては、ワイヤが傾いて引っ張られることがある。プーリは、ワイヤの傾きを規制する構造になっていないため、ワイヤが傾きすぎるとプーリから外れるおそれがある。 In Patent Document 1, since a flexible wire is used as the drain valve driving member, the wire may be inclined and pulled depending on the arrangement of the drain valve connected to the wire. Since the pulley does not have a structure that restricts the inclination of the wire, if the wire is too inclined, it may come off the pulley.

本発明の課題は、このような点に鑑みて、排水弁に連結されるワイヤと、ワイヤが巻かれるプーリを備えた排水弁駆動装置において、ワイヤの引き出し方向が変化することによってプーリからワイヤが外れることを抑制することにある。 In view of such a point, an object of the present invention is to provide a wire connected to a drain valve, and a drain valve drive device including a pulley around which the wire is wound. It is to suppress the coming off.

上記課題を解決するために、本発明の排水弁駆動装置は、排水弁が連結されるワイヤと、前記ワイヤが連結されるプーリと、前記プーリを駆動する駆動部と、前記プーリおよび前記駆動部を収容するケースと、を有し、前記ケースは、前記ワイヤを外部へ引き出す開口部と、前記開口部と前記プーリとの間で前記ワイヤの位置を規制するワイヤ位置規制部と、を備え、前記開口部から前記プーリへ向かう方向から見て、前記ワイヤ位置規制部と前記プーリとの隙間は、前記ワイヤの直径より小さいことを特徴とする。 In order to solve the above problems, a drain valve driving device of the present invention is a wire to which a drain valve is connected, a pulley to which the wire is connected, a drive unit for driving the pulley, the pulley and the drive unit. And a case for accommodating the wire, wherein the case includes an opening for pulling out the wire to the outside, and a wire position restricting section for restricting the position of the wire between the opening and the pulley, The gap between the wire position restricting portion and the pulley is smaller than the diameter of the wire when viewed from the direction from the opening to the pulley.

本発明は、このように、開口部からプーリへ向かう方向から見て、プーリとの隙間がワイヤ径（ワイヤの直径）よりも小さい位置にワイヤ位置規制部が設けられている。従って、ワイヤ位置規制部は、プーリから外れない範囲でしかワイヤを動かすことができないようにワイヤの位置を規制できるため、ワイヤの引き出し方向が変化することがあっても、プーリから外れる位置にワイヤが移動することはない。従って、ワイヤの引き出し方向が変化することによってプーリからワイヤが外れることを抑制できる。 According to the present invention, as described above, the wire position restricting portion is provided at a position where the gap between the pulley and the pulley is smaller than the wire diameter (wire diameter) when viewed from the direction from the opening to the pulley. Therefore, the wire position restricting unit can restrict the position of the wire so that the wire can be moved only within the range in which the wire cannot be separated from the pulley. Will never move. Therefore, it is possible to prevent the wire from coming off the pulley due to a change in the wire drawing direction.

本発明において、前記ワイヤ位置規制部は、前記ワイヤ位置規制部が位置する側への前記ワイヤの移動範囲を、前記開口部の縁と前記ワイヤとが接触しない範囲に規制すること
が好ましい。このようにすると、ケースとの接触に起因する排水弁駆動部材の損傷を回避できる。 In the present invention, it is preferable that the wire position restricting portion restricts a moving range of the wire toward a side where the wire position restricting portion is located to a range in which an edge of the opening does not come into contact with the wire. In this way, damage to the drain valve drive member due to contact with the case can be avoided.

本発明において、前記ワイヤ位置規制部は、前記開口部から前記プーリへ向かう方向へ延びる壁であることが好ましい。このように、連続した壁を設けることにより、ワイヤ位置規制部の強度を高めることができる。また、面によってワイヤをガイドできるため、ワイヤ位置規制部との接触に起因するワイヤの断線が発生しにくい。 In the present invention, it is preferable that the wire position restricting portion is a wall extending in a direction from the opening portion toward the pulley. By thus providing the continuous wall, the strength of the wire position restricting portion can be increased. Further, since the wire can be guided by the surface, wire breakage due to contact with the wire position restricting portion is unlikely to occur.

本発明において、前記ワイヤを通す貫通部を備えたプレートを有し、前記ケースは、第１方向で対向する第１ケースおよび第２ケースを備え、前記第１ケースは、第１側壁部を備え、前記開口部は、前記第１側壁部を切り欠いた切り欠き部であり、前記ワイヤは、前記切り欠き部と前記第２ケースとの間を通って前記ケースの外部へ引き出され、前記第２ケースは、前記開口部と前記プーリとの間に配置される前記プレートの移動を規制する規制部を備え、前記規制部は、前記開口部から前記プーリへ向かう第２方向と交差し、且つ、前記第１方向と交差する第３方向へ延びており、前記ワイヤ位置規制部は、前記規制部から前記プーリの側へ延びており、前記ワイヤの前記第３方向の位置を規制することが好ましい。このようにすると、規制部によって、プレートを介してワイヤの移動を規制できる。また、規制部とプーリとの間では、壁状のワイヤ位置規制部によってワイヤの位置を規制できる。従って、規制部によってワイヤとケースとの接触を回避し、且つ、ワイヤ位置規制部によってプーリから外れる位置にワイヤが移動することを回避できる。 In the present invention, it has a plate provided with a penetration part which lets the wire pass, the case is provided with the 1st case and the 2nd case which counter in the 1st direction, and the 1st case is provided with the 1st side wall part. The opening is a notch formed by notching the first side wall, and the wire is drawn out of the case through the notch and the second case. The two cases include a restricting portion that restricts movement of the plate disposed between the opening and the pulley, the restricting portion intersects a second direction from the opening to the pulley, and , Extends in a third direction intersecting the first direction, the wire position restricting portion extends from the restricting portion toward the pulley, and restricts the position of the wire in the third direction. preferable. With this configuration, the movement of the wire can be regulated via the plate by the regulation portion. Further, the wire position can be restricted by the wall-shaped wire position restricting part between the restricting part and the pulley. Therefore, it is possible to avoid the contact between the wire and the case by the restricting portion, and to prevent the wire from moving to the position where it is disengaged from the pulley by the wire position restricting portion.

本発明によれば、ワイヤ位置規制部は、プーリから外れない範囲でしかワイヤを動かすことができないようにワイヤの位置を規制できるため、ワイヤの引き出し方向が変化することがあっても、プーリから外れる位置にワイヤが移動することはない。従って、ワイヤの引き出し方向が変化することによってプーリからワイヤが外れることを抑制できる。 According to the present invention, the wire position restricting portion can restrict the position of the wire so that the wire can be moved only within the range in which the wire cannot be separated from the pulley. The wire does not move to the disengaged position. Therefore, it is possible to prevent the wire from coming off the pulley due to a change in the wire drawing direction.

本発明を適用した排水弁駆動装置の斜視図である。It is a perspective view of a drain valve drive device to which the present invention is applied. 図１の排水弁駆動装置の分解斜視図である。It is a disassembled perspective view of the drain valve drive device of FIG. 第１ケースを取り外した排水弁駆動装置の平面図である。It is a top view of the drainage valve drive which removed the 1st case. 第１ケースを第１方向の一方側から見た斜視図である。It is the perspective view which looked at the 1st case from one side of the 1st direction. 排水弁駆動蔵置の部分断面図（図１のＡ−Ａ位置の断面図）である。It is a partial cross-sectional view (cross-sectional view of the AA position in FIG. 1) of the drainage valve drive storage device. 第１ケースと第２ケースとの接続箇所の部分断面図（図１のＢ−Ｂ位置の断面図）である。FIG. 3 is a partial cross-sectional view (cross-sectional view taken along the line BB in FIG. 1) of a connection portion between the first case and the second case. 第２ケース、プーリ、プレートおよびワイヤを第１方向の他方側から見た部分斜視図である。It is the partial perspective view which looked at the 2nd case, a pulley, a plate, and a wire from the other side of the 1st direction. 開口部の側から見たプーリおよびワイヤ位置規制部の配置を模式的に示す説明図である。It is explanatory drawing which shows typically the arrangement|positioning of the pulley and the wire position control part seen from the opening side.

（全体構成）
以下、本発明の実施形態に係る排水弁駆動装置１について、図面を参照しながら説明する。図１は本発明を適用した排水弁駆動装置１の斜視図であり、図２は図１の排水弁駆動装置１の分解斜視図である。排水弁駆動装置１は、図示しない排水弁に連結される排水弁駆動部材と、排水弁駆動部材が連結される出力部材と、出力部材を駆動する駆動部を備える。本実施形態では、排水弁駆動部材はワイヤ１０であり、出力部材はプーリ１１である。プーリ１１は、第１方向Ｚに延在する回転軸線を中心として回転する。排水弁駆動装置１は、プーリ１１を回転させることにより、ワイヤ１０を介して排水弁を駆動する。 (overall structure)
Hereinafter, a drain valve drive device 1 according to an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view of a drain valve driving device 1 to which the present invention is applied, and FIG. 2 is an exploded perspective view of the drain valve driving device 1 of FIG. The drain valve drive device 1 includes a drain valve drive member connected to a drain valve (not shown), an output member connected to the drain valve drive member, and a drive unit that drives the output member. In the present embodiment, the drain valve driving member is the wire 10 and the output member is the pulley 11. The pulley 11 rotates about a rotation axis extending in the first direction Z. The drain valve driving device 1 drives the drain valve via the wire 10 by rotating the pulley 11.

本明細書において、第１方向Ｚ、第２方向Ｙ、第３方向Ｘは互いに直交する方向である。また、第１方向Ｚの一方側を＋Ｚ方向、他方側を−Ｚ方向とし、第２方向Ｙの一方側を＋Ｙ方向、他方側を−Ｙ方向とし、第３方向Ｘの一方側を＋Ｘ方向、他方側を−Ｘ方向とする。ＣＷ方向、ＣＣＷ方向は排水弁駆動装置１を＋Ｚ方向側から見た場合のＣＷ方向、ＣＣＷ方向である。 In this specification, the first direction Z, the second direction Y, and the third direction X are directions orthogonal to each other. Further, one side of the first direction Z is +Z direction, the other side is −Z direction, one side of the second direction Y is +Y direction, the other side is −Y direction, and one side of the third direction X is +X direction. , And the other side is the −X direction. The CW direction and the CCW direction are the CW direction and the CCW direction when the drain valve driving device 1 is viewed from the +Z direction side.

排水弁駆動装置１は、ケース２０を備えており、プーリ１１および駆動部は、ケース２０の内側に配置される。ケース２０は、第１方向Ｚに対向する第１ケース２１および第２ケース２２を備える。プーリ１１を回転させる駆動部は、モータ４０およびギアユニット２を備えたギアードモータである。モータ４０は、第１方向Ｚの一方側（＋Ｚ方向）に配置される第２ケース２２の底部に配置される。ギアユニット２およびプーリ１１は、モータ４０の第１方向Ｚの他方側（−Ｚ方向）に配置される。第１ケース２１は、ギアユニット２およびプーリ１１を第１方向Ｚの他方側（−Ｚ方向）から覆っている。 The drain valve drive device 1 includes a case 20, and the pulley 11 and the drive unit are arranged inside the case 20. The case 20 includes a first case 21 and a second case 22 that face each other in the first direction Z. The drive unit that rotates the pulley 11 is a geared motor including the motor 40 and the gear unit 2. The motor 40 is arranged at the bottom of the second case 22 arranged on one side of the first direction Z (+Z direction). The gear unit 2 and the pulley 11 are arranged on the other side (-Z direction) of the motor 40 in the first direction Z. The first case 21 covers the gear unit 2 and the pulley 11 from the other side in the first direction Z (−Z direction).

ギアユニット２は、後述するように、プーリ１１と一体に形成された出力ギア５４を備える。ワイヤ１０の端部はプーリ１１に固定され、プーリ１１の外周面に形成された溝１２にワイヤ１０が巻かれている。ワイヤ１０は、ケース２０の側面に形成された開口部２３からケース２０の外部へ引き出され、図示しない排水弁に連結される。本実施形態では、ケース２０は樹脂製であり、ワイヤ１０はＳＵＳ等の金属製である。排水弁駆動部材であるワイヤ１０がケース２０よりも固い材質であれば、ケース２０との接触によってワイヤ１０が断線するおそれを少なくすることができる。 The gear unit 2 includes an output gear 54 integrally formed with the pulley 11, as described later. The end of the wire 10 is fixed to the pulley 11, and the wire 10 is wound in the groove 12 formed on the outer peripheral surface of the pulley 11. The wire 10 is drawn out of the case 20 through an opening 23 formed on the side surface of the case 20 and connected to a drain valve (not shown). In the present embodiment, the case 20 is made of resin, and the wire 10 is made of metal such as SUS. If the wire 10, which is the drain valve driving member, is made of a material harder than the case 20, it is possible to reduce the risk of the wire 10 breaking due to contact with the case 20.

図２に示すように、プーリ１１は、出力ギア５４の第１方向Ｚの一方側（＋Ｚ方向）に配置される。プーリ１１および出力ギア５４は、第１の回転位置（閉位置）と、第１の回転位置に対してＣＣＷ方向に位置する第２の回転位置（開位置）に移動可能である。プーリ１１がＣＷ方向へ回転すると、ワイヤ１０が繰り出される。プーリ１１が第１の回転位置（閉位置）まで回転すると、ワイヤ１０に連結された排水弁によって排水口が閉鎖される。また、プーリ１１がＣＣＷ方向へ回転すると、ワイヤ１０が巻き取られる。プーリ１１が第２の回転位置（開位置）、まで回転すると、排水弁が排水口から離れて排水が開始される。 As shown in FIG. 2, the pulley 11 is arranged on one side of the output gear 54 in the first direction Z (+Z direction). The pulley 11 and the output gear 54 are movable to a first rotation position (closed position) and a second rotation position (open position) located in the CCW direction with respect to the first rotation position. When the pulley 11 rotates in the CW direction, the wire 10 is paid out. When the pulley 11 is rotated to the first rotation position (closed position), the drainage valve connected to the wire 10 closes the drainage port. Further, when the pulley 11 rotates in the CCW direction, the wire 10 is wound up. When the pulley 11 rotates to the second rotation position (open position), the drain valve separates from the drain port and drainage is started.

排水弁駆動装置１は、プーリ１１および出力ギア５４が第２の回転位置（開位置）に移動した状態で、駆動源であるモータ４０への通電を継続して、プーリ１１およびワイヤ１０を保持する。また、排水弁駆動装置１は、モータ４０への通電を停止してプーリ１１およびワイヤ１０の保持状態を解除すると、外力によりプーリ１１を第１の回転位置（閉位置）へ戻すことができるようになる。例えば、排水弁の弁体に連結されたばね力等の付勢力によって、ワイヤ１０を介してプーリ１１が第１の回転位置へ戻り、排水弁によって排水口が閉鎖される。 The drain valve driving device 1 keeps the pulley 11 and the wire 10 in a state where the pulley 11 and the output gear 54 are moved to the second rotation position (open position) while continuing to energize the motor 40 that is the drive source. To do. Further, the drain valve driving device 1 can return the pulley 11 to the first rotation position (closed position) by an external force when the holding state of the pulley 11 and the wire 10 is released by stopping the energization of the motor 40. become. For example, the pulley 11 returns to the first rotation position via the wire 10 by the biasing force such as the spring force connected to the valve body of the drain valve, and the drain valve closes the drain port.

図３は第１ケース２１を取り外した排水弁駆動装置１の平面図である。ギアユニット２は、モータ４０の回転をプーリ１１に伝達する伝達輪列５０と、モータ４０から伝達輪列５０への回転トルクの伝達を継断する第１クラッチ機構６０（図２参照）と、ワイヤ１０を介してプーリ１１に外部負荷が加わった場合に伝達輪列５０の回転を規制して出力ギア５４およびプーリ１１を保持する回転規制機構７０と、伝達輪列５０が回転トルクを伝達する状態と伝達しない状態とを切り換える第２クラッチ機構８０を備える。伝達輪列５０は、ロータピニオン５１、遊星歯車機構５２、減速ギア５３、および出力ギア５４を備える。伝達輪列５０は、モータ４０の駆動力をこの順でプーリ１１へ伝達する。 FIG. 3 is a plan view of the drain valve driving device 1 with the first case 21 removed. The gear unit 2 includes a transmission train wheel 50 that transmits the rotation of the motor 40 to the pulley 11, and a first clutch mechanism 60 (see FIG. 2) that disconnects the transmission of the rotational torque from the motor 40 to the transmission train wheel 50. When the external load is applied to the pulley 11 via the wire 10, the rotation restricting mechanism 70 that restricts the rotation of the transmission train wheel 50 to hold the output gear 54 and the pulley 11 and the transmission train wheel 50 transmit the rotation torque. The second clutch mechanism 80 is provided for switching between the state and the non-transmitted state. The transmission train wheel 50 includes a rotor pinion 51, a planetary gear mechanism 52, a reduction gear 53, and an output gear 54. The transmission train wheel 50 transmits the driving force of the motor 40 to the pulley 11 in this order.

（ケース）
図１、図２に示すように、ケース２０の開口部２３は第２方向Ｙを向いている。第２方
向Ｙの一方側（＋Ｙ方向）は開口部２３から見てケース２０の内側であり、第２方向Ｙの一方側（−Ｙ方向）は開口部２３から見てケース２０の外側である。図２に示すように、プーリ１１の回転中心は、開口部２３の正面から第３方向Ｘの他方側（−Ｘ方向）にずれた位置であり、プーリ１１の外周面の溝１２が開口部２３の正面に位置する。従って、ワイヤ１０は、開口部２３の正面から開口部２３へ延びている。 (Case)
As shown in FIGS. 1 and 2, the opening 23 of the case 20 faces the second direction Y. One side (+Y direction) of the second direction Y is the inside of the case 20 when viewed from the opening 23, and one side (−Y direction) of the second direction Y is the outside of the case 20 when viewed from the opening 23. .. As shown in FIG. 2, the center of rotation of the pulley 11 is at a position displaced from the front surface of the opening 23 to the other side (−X direction) in the third direction X, and the groove 12 on the outer peripheral surface of the pulley 11 is opened. Located in front of 23. Therefore, the wire 10 extends from the front surface of the opening 23 to the opening 23.

図４は、第１ケース２１を第１方向Ｚの一方側（＋Ｚ方向）から見た斜視図である。図５は、排水弁駆動装置１の部分断面図（図１のＡ−Ａ位置の断面図）であり、開口部２３の位置で切断した断面図である。図６は、第１ケース２１と第２ケース２２との接続箇所の部分断面図（図１のＢ−Ｂ位置の断面図）であり、開口部２３と異なる位置で切断した断面図である。図４−図６に示すように、第１ケース２１は、プーリ１１およびギアユニット２を覆う上板部２１０と、上板部２１０の外周縁から第１方向Ｚの一方側（＋Ｚ方向）へ延びる第１側壁部２１１と、第１側壁部２１１の外周面から突出し第１側壁部２１１の一回り外周側において屈曲して第２ケース２２側（＋Ｚ方向）へ延びる第２ケース覆い部２１２を備える。図４、図６に示すように、第２ケース覆い部２１２の内側には、第１側壁部２１１の＋Ｚ方向の端部に沿って延在する第１段部２１３が設けられている。第１段部２１３は、＋Ｚ方向へ突出する内側凸部２１４と、内側凸部２１４の外周側において−Ｚ方向へ凹んだ外側凹部２１５を備える。 FIG. 4 is a perspective view of the first case 21 as viewed from one side (+Z direction) of the first direction Z. FIG. 5 is a partial cross-sectional view (cross-sectional view taken along the line AA in FIG. 1) of the drain valve driving device 1, and is a cross-sectional view taken at the position of the opening 23. FIG. 6 is a partial cross-sectional view (cross-sectional view taken along the line BB in FIG. 1) of a connection portion between the first case 21 and the second case 22, and is a cross-sectional view cut at a position different from the opening 23. As shown in FIGS. 4 to 6, the first case 21 includes an upper plate portion 210 that covers the pulley 11 and the gear unit 2, and an outer peripheral edge of the upper plate portion 210 to one side in the first direction Z (+Z direction). A first side wall part 211 extending and a second case cover part 212 projecting from the outer peripheral surface of the first side wall part 211 and bent at one outer peripheral side of the first side wall part 211 and extending toward the second case 22 side (+Z direction). Prepare As shown in FIGS. 4 and 6, a first step portion 213 extending along the +Z direction end of the first side wall portion 211 is provided inside the second case cover portion 212. The first step portion 213 includes an inner convex portion 214 protruding in the +Z direction and an outer concave portion 215 recessed in the −Z direction on the outer peripheral side of the inner convex portion 214.

図２、図３、図６に示すように、第２ケース２２は、底板部２２０と、底板部２２０の外周縁から第１方向Ｚの他方側（−Ｚ方向）へ延びる第２側壁部２２１を備える。図３、図５に示すように、底板部２２０は、モータ４０が収容される円形凹部２２２を備える。図２、図６に示すように、第２側壁部２２１の−Ｚ方向の端部には、第１ケース２１の第１段部２１３と嵌合する第２段部２２３が形成されている。第２段部２２３は、＋Ｚ方向へ凹んだ内側凹部２２４と、内側凹部２２４の外周側を−Ｚ方向へ突出させた外側凸部２２５を備える。 As shown in FIGS. 2, 3 and 6, the second case 22 includes a bottom plate portion 220 and a second side wall portion 221 extending from the outer peripheral edge of the bottom plate portion 220 to the other side in the first direction Z (−Z direction). Equipped with. As shown in FIGS. 3 and 5, the bottom plate portion 220 includes a circular recess 222 that accommodates the motor 40. As shown in FIGS. 2 and 6, a second step portion 223 that fits with the first step portion 213 of the first case 21 is formed at the end portion of the second side wall portion 221 in the −Z direction. The second step portion 223 includes an inner recess 224 that is recessed in the +Z direction, and an outer protrusion 225 that is formed by projecting the outer peripheral side of the inner recess 224 in the −Z direction.

モータ４０は、ＡＣ同期モータである。図５に示すように、モータ４０は、カップ状のモータケース４１と、モータケース４１の＋第１方向Ｚ側の端部に取り付けられる支持プレート４２と、モータケース４１の内側に配置されるボビン４３と、ボビン４３に巻回されるステータコイル４４と、ボビン４３の内周側に配置されるロータ４５を備える。 The motor 40 is an AC synchronous motor. As shown in FIG. 5, the motor 40 includes a cup-shaped motor case 41, a support plate 42 attached to an end of the motor case 41 on the +first direction Z side, and a bobbin arranged inside the motor case 41. 43, a stator coil 44 wound around the bobbin 43, and a rotor 45 arranged on the inner peripheral side of the bobbin 43.

図２、図４に示すように、第１ケース２１は、第１側壁部２１１および第２ケース覆い部２１２を切り欠いた矩形の開口部２３を備える。第１側壁部２１１は、第１ケース２１の−Ｙ方向の側面を構成する平面部２１６を備え、第２ケース覆い部２１２は平面部２１６から＋Ｚ方向へ延びる平面部２１７を備える。平面部２１６、２１７は第３方向Ｘに延びている。開口部２３は、平面部２１６および平面部２１７を切り欠いた切り欠き部である。第１ケース２１は、開口部２３の縁に沿って第１側壁部２１１および第２ケース覆い部２１２の外周面から−Ｙ方向へ突出する水除け部２４を備える。本実施形態では、水除け部２４は開口部２３の縁全体に形成されている。水除け部２４の先端部分の外周面には、傾斜面２４１が設けられている。水受け部２４の先端部分に水が掛かった場合には、傾斜面２４１に沿って水除け部２４の基端側（＋Ｙ方向）へ水が流れるため、開口部２３へ水が侵入しにくい。 As shown in FIGS. 2 and 4, the first case 21 includes a rectangular opening 23 that is formed by cutting out the first side wall portion 211 and the second case cover portion 212. The first side wall portion 211 includes a flat surface portion 216 that constitutes a side surface of the first case 21 in the −Y direction, and the second case cover portion 212 includes a flat surface portion 217 that extends from the flat surface portion 216 in the +Z direction. The plane portions 216 and 217 extend in the third direction X. The opening portion 23 is a cutout portion obtained by cutting out the flat surface portion 216 and the flat surface portion 217. The first case 21 includes a water blocking portion 24 that projects in the −Y direction from the outer peripheral surfaces of the first side wall portion 211 and the second case cover portion 212 along the edge of the opening 23. In the present embodiment, the water blocking portion 24 is formed on the entire edge of the opening 23. An inclined surface 241 is provided on the outer peripheral surface of the tip portion of the water barrier 24. When the tip of the water receiving portion 24 is splashed with water, the water flows along the inclined surface 241 toward the base end side (+Y direction) of the drainage portion 24, so that the water is less likely to enter the opening 23.

第１ケース２１と第２ケース２２とを組み立ててケース２０を形成する際には、図６に示すように、第１ケース２１の第１段部２１３と、第２ケース２２の第２段部２２３とを嵌合させて、第１側壁部２１１と第２側壁部２２１とを接続する。その際、第１段部２１３の内側凸部２１４と、第２段部２２３の内側凹部２２４とが嵌合し、且つ、第１段部２１３の外側凹部２１５と、第２段部２２３の外側凸部２２５とが嵌合する。これにより、いわゆるインロー構造の接続部が形成される。 When assembling the first case 21 and the second case 22 to form the case 20, as shown in FIG. 6, the first step portion 213 of the first case 21 and the second step portion of the second case 22 are formed. 223 is fitted to connect the first side wall portion 211 and the second side wall portion 221. At that time, the inner convex portion 214 of the first step portion 213 and the inner concave portion 224 of the second step portion 223 are fitted, and the outer concave portion 215 of the first step portion 213 and the outer side of the second step portion 223 are fitted together. The convex portion 225 is fitted. As a result, a connecting portion having a so-called spigot structure is formed.

本実施形態では、インロー構造を形成する段部のうち、モータ４０およびギアユニット２が収容される第２ケース２２に設けられた第２段部２２３は、内周側の部分が凹んでおり、外周側が凸形状になっている。従って、第２ケース覆い部２１２の内側に露出する第１ケース２１と第２ケース２２との嵌合面の第３方向Ｚの位置は、外側凸部２２５の先端面の位置である。よって、第２ケース覆い部２１２の＋Ｚ方向の先端から嵌合面までの距離が大きいので、＋Ｚ方向からケース２０に水が掛かった場合でも嵌合面に水が届きにくい。また、第１段部２１３と第２段部２２３との隙間には、グリスなどの封止剤が塗布される。従って、第１側壁部２１１と第２側壁部２２１との隙間は封止剤で封止されるため、嵌合面に水が掛かることがあっても、ケース２０内へ水が侵入しにくい。 In the present embodiment, among the step portions forming the spigot structure, the second step portion 223 provided in the second case 22 in which the motor 40 and the gear unit 2 are housed has a concave inner peripheral portion, The outer peripheral side is convex. Therefore, the position of the fitting surface of the first case 21 and the second case 22 exposed inside the second case cover 212 in the third direction Z is the position of the tip surface of the outer convex portion 225. Therefore, since the distance from the tip of the second case cover 212 in the +Z direction to the fitting surface is large, it is difficult for water to reach the fitting surface even when the case 20 is splashed with water from the +Z direction. A sealant such as grease is applied to the gap between the first step 213 and the second step 223. Therefore, the gap between the first side wall portion 211 and the second side wall portion 221 is sealed with the sealant, so that even if water is splashed on the fitting surface, it is difficult for water to enter the case 20.

第１ケース２１と第２ケース２２とを組み立てると、第２ケース２２の第２側壁部２２１の外周側は、第２ケース覆い部２１２によって覆われる。図６に示すように、第２ケース覆い部２１２の第１方向Ｚの一方側（＋Ｚ方向）の先端は、第１段部２１３よりも第１方向Ｚの一方側（＋Ｚ方向）に位置する。本実施形態では、第２ケース覆い部２１２の第１方向Ｚの一方側（＋Ｚ方向）の先端は、第２ケース２２の底板部２２０の位置まで延びているため、第２側壁部２２１全体が、第２ケース覆い部２１２によって外周側から覆われている。図５、図６に示すように、第２側壁部２２１と第２ケース覆い部２１２との間には所定の隙間（例えば、１ｍｍ程度）が設けられている。従って、第１ケース２１と第２ケース２２とを組み立てる際の組立性が良好である。 When the first case 21 and the second case 22 are assembled, the outer peripheral side of the second side wall portion 221 of the second case 22 is covered with the second case cover portion 212. As shown in FIG. 6, the tip of the second case cover 212 on one side (+Z direction) in the first direction Z is located on one side (+Z direction) in the first direction Z with respect to the first step 213. .. In the present embodiment, the tip of the second case cover 212 on one side in the first direction Z (+Z direction) extends to the position of the bottom plate 220 of the second case 22, so that the entire second side wall 221 is formed. The second case cover 212 covers the outer peripheral side. As shown in FIGS. 5 and 6, a predetermined gap (for example, about 1 mm) is provided between the second side wall part 221 and the second case cover part 212. Therefore, the assemblability when assembling the first case 21 and the second case 22 is good.

第１ケース２１と第２ケース２２とを組み立てると、図１、図５に示すように、開口部２３は、第２ケース覆い部２１２を切り欠いた部分は第２側壁部２２１によって塞がれるが、第１側壁部２１１を切り欠いた部分がケース２０を貫通する貫通部となる。従って、開口部２３を通ってワイヤ１０をケース２０の外部へ引き出すことができる。 When the first case 21 and the second case 22 are assembled, as shown in FIG. 1 and FIG. 5, the opening 23 is closed by the second side wall part 221 at the portion where the second case cover 212 is cut out. However, the cutout portion of the first side wall portion 211 becomes a penetrating portion that penetrates the case 20. Therefore, the wire 10 can be pulled out of the case 20 through the opening 23.

（プレート）
図２、図５に示すように、排水弁駆動装置１は、開口部２３とプーリ１１との間に配置される平板状のプレート１３を備える。プレート１３は、例えば、ポリエステルフィルムからなる。プレート１３には、貫通部１４が形成され、ワイヤ１０は貫通部１４に通されている。ワイヤ１０は、貫通部１４内で第２方向Ｙ方向へ移動可能である。従って、貫通部１４にワイヤ１０を通した状態で、ワイヤ１０の繰り出しおよび巻き取りを行うことができる。 (plate)
As shown in FIGS. 2 and 5, the drain valve driving device 1 includes a flat plate 13 arranged between the opening 23 and the pulley 11. The plate 13 is made of, for example, a polyester film. A through portion 14 is formed in the plate 13, and the wire 10 is passed through the through portion 14. The wire 10 is movable in the second direction Y direction within the penetrating portion 14. Therefore, with the wire 10 passed through the penetrating portion 14, the wire 10 can be unwound and wound.

プレート１３は、開口部２３の近傍に配置され、開口部２３と第２方向Ｙで対向する。また、プレート１３は開口部２３より大きく、第２方向Ｙに対して略垂直な姿勢で配置される。従って、プレート１３は、開口部２３からケース２０内に侵入しようとする水や異物を遮蔽する遮蔽部材として機能する。また、貫通部１４には、ワイヤ１０とプレート１３との隙間を封止するグリスなどの封止剤が塗布される。 The plate 13 is arranged near the opening 23 and faces the opening 23 in the second direction Y. The plate 13 is larger than the opening 23 and is arranged in a posture substantially perpendicular to the second direction Y. Therefore, the plate 13 functions as a shielding member that shields water and foreign matter that try to enter the case 20 through the opening 23. A sealant such as grease that seals the gap between the wire 10 and the plate 13 is applied to the penetrating portion 14.

（プレートの保持構造）
プレート１３は、開口部２３とプーリとの間においてケース２０に保持される。ケース２０には、プレート１３を第２方向Ｙと直交する方向に移動可能に保持するとともにプレート１３の第２方向Ｙと直交する方向への移動範囲を規制する規制部１５（図３、図４参照）が設けられている。ワイヤ１０はプレート１３の貫通部１４に通されるため、プレート１３は、ワイヤ１０をガイドするガイド部材として機能する。規制部１５は、プレート１３を介して、ワイヤ１０の移動範囲をケース２０の各部と接触しない範囲に規制する。本実施形態では、規制部１５は、プレート１３を介して、ワイヤ１０の移動範囲を開口部２３の内周縁および第２側壁部２２１の−Ｚ方向の端部と接触しない範囲に規制する。 (Plate holding structure)
The plate 13 is held by the case 20 between the opening 23 and the pulley. The case 20 holds the plate 13 movably in the direction orthogonal to the second direction Y and restricts the moving range of the plate 13 in the direction orthogonal to the second direction Y (see FIGS. 3 and 4). (See) is provided. Since the wire 10 is passed through the penetrating portion 14 of the plate 13, the plate 13 functions as a guide member that guides the wire 10. The restricting unit 15 restricts the moving range of the wire 10 via the plate 13 so that the moving range of the wire 10 does not come into contact with each unit of the case 20. In the present embodiment, the regulation portion 15 regulates the movement range of the wire 10 via the plate 13 so that the movement range of the wire 10 does not come into contact with the inner peripheral edge of the opening 23 and the end portion of the second side wall portion 221 in the −Z direction.

図３、図４に示すように、規制部１５は、第１ケース２１に形成された第１ケース側規制部１６と、第２ケース２２に形成された第２ケース側規制部１７を備える。第１ケース側規制部１６は、第１ケース２１の上板部２１０から＋Ｚ方向へ突出する突出部であり、第３方向Ｘに延びる第１溝部１６０を備える。また、第２ケース側規制部１７は、第２ケース２２の底板部２２０から−Ｚ方向へ突出する突出部であり、第３方向Ｘに延びる第２溝部１７０を備える。第１ケース側規制部１６および第２ケース側規制部１７は、いずれも開口部２３の近傍に設けられる。 As shown in FIGS. 3 and 4, the restriction portion 15 includes a first case-side restriction portion 16 formed in the first case 21 and a second case-side restriction portion 17 formed in the second case 22. The first case side restricting portion 16 is a protruding portion that protrudes in the +Z direction from the upper plate portion 210 of the first case 21, and includes a first groove portion 160 that extends in the third direction X. The second case side restricting portion 17 is a protruding portion that protrudes in the −Z direction from the bottom plate portion 220 of the second case 22, and includes a second groove portion 170 that extends in the third direction X. Both the first case side restriction portion 16 and the second case side restriction portion 17 are provided near the opening 23.

図５に示すように、第１ケース２１と第２ケース２２とを組み立てると、第１溝部１６０と第２溝部１７０とが第１方向Ｚに対向する。プレート１３は、第１方向Ｚの一方側（＋Ｚ方向）の端部が第１溝部１６０に配置され、第１方向Ｚの他方側（−Ｚ方向）の端部が第２溝部１７０に配置される。図５に示すように、第１溝部１６０の底部と第２溝部１７０の底部との間隔は、プレート１３の第１方向Ｚの高さより大きい。従って、プレート１３は、第１溝部１６０と第２溝部１７０によって第１方向Ｚによって移動可能に支持され、且つ、第１溝部１６０の底部および第２溝部１７０の底部によって第１方向Ｚの移動範囲が規制される。つまり、第１溝部１６０と第２溝部１７０は、プレート１３の第１方向Ｚの移動範囲を規制する第１規制部１５１として機能する。 As shown in FIG. 5, when the first case 21 and the second case 22 are assembled, the first groove portion 160 and the second groove portion 170 face each other in the first direction Z. In the plate 13, one end (+Z direction) of the first direction Z is arranged in the first groove 160, and the other end (-Z direction) of the first direction Z is arranged in the second groove 170. It As shown in FIG. 5, the distance between the bottom of the first groove 160 and the bottom of the second groove 170 is larger than the height of the plate 13 in the first direction Z. Therefore, the plate 13 is movably supported by the first groove portion 160 and the second groove portion 170 in the first direction Z, and is movable in the first direction Z by the bottom portion of the first groove portion 160 and the bottom portion of the second groove portion 170. Is regulated. That is, the first groove portion 160 and the second groove portion 170 function as the first regulating portion 151 that regulates the movement range of the plate 13 in the first direction Z.

第１規制部１５１（第１溝部１６０および第２溝部１７０）は、プレート１３の第１方向Ｚの移動範囲を規制することにより、プレート１３を介してワイヤ１０の第１方向Ｚの移動範囲を規制する。本実施形態では、ワイヤ１０の第１方向Ｚの一方側（＋Ｚ方向）への移動範囲は、ワイヤ１０が第２側壁部２２１の−Ｚ方向の端部と接触するよりも先に、プレート１３が第２溝部１７０の底部と接触することによって規制される。また、ワイヤ１０の第１方向Ｚの他方側（−Ｚ方向）への移動範囲は、ワイヤ１０が開口部２３の−Ｚ方向の縁部と接触するよりも先に、プレート１３が第１溝部１６０の底部と接触することによって規制される。 The first restricting portion 151 (the first groove portion 160 and the second groove portion 170) restricts the movement range of the wire 13 in the first direction Z by regulating the movement range of the plate 13 in the first direction Z. regulate. In the present embodiment, the movement range of the wire 10 in the first direction Z toward one side (+Z direction) is prior to the contact of the wire 10 with the −Z direction end of the second side wall part 221. Is regulated by coming into contact with the bottom of the second groove 170. Further, the moving range of the wire 10 to the other side in the first direction Z (−Z direction) is such that the plate 13 has the first groove portion before the wire 10 comes into contact with the edge portion of the opening 23 in the −Z direction. It is regulated by contacting the bottom of 160.

図４に示すように、第１ケース側規制部１６は、第１溝部１６０の＋Ｙ方向側において第３方向Ｘに延びる第１壁部１６１と、第１溝部１６０の−Ｙ方向側において第３方向Ｘに延びる第２壁部１６２と、第１壁部１６１の第３方向Ｘの一端および他端からそれぞれ＋Ｙ方向へ屈曲して延びる２箇所の第３壁部１６３を備える。第３壁部１６３は、第１溝部１６０の一端および他端からそれぞれ第３方向Ｘに所定寸法離れた位置で第２方向Ｙに延びており、第１側壁部２１１と繋がっている。 As shown in FIG. 4, the first case side restricting portion 16 includes a first wall portion 161 extending in the third direction X on the +Y direction side of the first groove portion 160 and a third wall portion on the −Y direction side of the first groove portion 160. The second wall portion 162 extends in the direction X, and two third wall portions 163 that are bent and extend in the +Y direction from one end and the other end of the first wall portion 161 in the third direction X, respectively. The third wall portion 163 extends in the second direction Y at a position separated from the one end and the other end of the first groove portion 160 in the third direction X by a predetermined dimension, and is connected to the first side wall portion 211.

図７は、第２ケース２２、プーリ１１、プレート１３およびワイヤ１０を第１方向Ｚの他方側（−Ｚ方向）から見た部分斜視図である。図３、図７に示すように、第２ケース側規制部１７は、第２溝部１７０の＋Ｙ方向側において第３方向Ｘに延びる第１壁部１７１と、第２溝部１７０の−Ｙ方向側において第３方向Ｘに延びる第２壁部１７２と、第１壁部１７１の第３方向Ｘの一端および他端からそれぞれ＋Ｙ方向へ屈曲して延びる２箇所の第３壁部１７３を備える。図５に示すように、第１壁部１７１と第２壁部１７２は、第２溝部１７０の＋Ｚ方向側で繋がっている。第３壁部１７３は、第２溝部１７０の一端および他端からそれぞれ第３方向Ｘに所定寸法離れた位置で第２方向Ｙに延びており、第２側壁部２２１と繋がっている。 FIG. 7 is a partial perspective view of the second case 22, the pulley 11, the plate 13, and the wire 10 as viewed from the other side in the first direction Z (−Z direction). As shown in FIGS. 3 and 7, the second case side restricting portion 17 includes a first wall portion 171 extending in the third direction X on the +Y direction side of the second groove portion 170 and a −Y direction side of the second groove portion 170. In, the second wall portion 172 extending in the third direction X, and two third wall portions 173 that are bent and extend in the +Y direction from one end and the other end of the first wall portion 171 in the third direction X, respectively. As shown in FIG. 5, the first wall portion 171 and the second wall portion 172 are connected on the +Z direction side of the second groove portion 170. The third wall portion 173 extends in the second direction Y at a position separated from the one end and the other end of the second groove portion 170 in the third direction X by a predetermined dimension, and is connected to the second side wall portion 221.

図４、図５に示すように、第１ケース側規制部１６は、上板部２１０からの突出寸法（第１方向Ｚの高さ）が第１側壁部２１１よりも小さい。一方、図７に示すように、第２ケース側規制部１７は、底板部２２０からの突出寸法（第１方向Ｚの高さ）が第２側壁部２２１より大きい。第２ケース側規制部１７の第３方向Ｘの中央には＋Ｚ方向へ凹んだ矩形凹部１８が設けられている。矩形凹部１８は、第２側壁部２２１の−Ｚ方向の先端と同一の高さまで凹んでいる。従って、第１ケース２１と第２ケース２２を組み立てると、第２
ケース側規制部１７は、矩形凹部１８の第３方向Ｘの両側の部分が第１ケース２１の内側に突出した状態になる。 As shown in FIGS. 4 and 5, the first case-side restricting portion 16 has a smaller projecting dimension (height in the first direction Z) from the upper plate portion 210 than the first side wall portion 211. On the other hand, as shown in FIG. 7, the second case side restricting portion 17 has a larger projecting dimension (height in the first direction Z) from the bottom plate portion 220 than that of the second side wall portion 221. A rectangular recess 18 recessed in the +Z direction is provided at the center of the second case side restricting portion 17 in the third direction X. The rectangular recess 18 is recessed to the same height as the tip of the second sidewall 221 in the −Z direction. Therefore, when the first case 21 and the second case 22 are assembled, the second case
The case-side restricting portion 17 is in a state in which portions on both sides of the rectangular concave portion 18 in the third direction X protrude inside the first case 21.

矩形凹部１８は、第１壁部１７１に形成された第１矩形凹部１８１と、第２壁部１７２に形成された第２矩形凹部１８２を備える。図７に示すように、第２ケース側規制部１７の第２溝部１７０にプレート１３を装着すると、ワイヤ１０を通した貫通部１４が矩形凹部１８の内側に配置される。第１壁部１７１は、第１矩形凹部１８１の第３方向Ｘの一方側および他方側の２箇所が−Ｙ方向へ延びて第２側壁部２２１と繋がっている。 The rectangular recess 18 includes a first rectangular recess 181 formed in the first wall 171 and a second rectangular recess 182 formed in the second wall 172. As shown in FIG. 7, when the plate 13 is attached to the second groove portion 170 of the second case side regulation portion 17, the penetrating portion 14 through which the wire 10 is inserted is arranged inside the rectangular recess 18. The first wall portion 171 is connected to the second side wall portion 221 at two locations on one side and the other side of the first rectangular recess 181 in the third direction X, extending in the −Y direction.

第１ケース２１と第２ケース２２とを組み立てると、第１ケース側規制部１６の第３壁部１６３と、第２ケース側規制部１７の第３壁部１７３とは第１方向Ｚで対向する。２箇所の第３壁部１６３の第３方向Ｘの間隔と、２箇所の第３壁部１７３の第３方向Ｘの間隔とは同一であり、且つ、プレート１３の第３方向Ｘの幅より大きい。従って、プレート１３の第１方向Ｚの両端が第１溝部１６０と第２溝部１７０に配置されると、第３壁部１６３と第３壁部１７３によってプレート１３の第３方向Ｘの移動範囲が規制される。つまり、第３壁部１６３と第３壁部１７３は、プレート１３の第３方向Ｘの移動範囲を規制する第２規制部１５２として機能する。 When the first case 21 and the second case 22 are assembled, the third wall portion 163 of the first case side regulation portion 16 and the third wall portion 173 of the second case side regulation portion 17 face each other in the first direction Z. To do. The distance between the two third wall portions 163 in the third direction X is the same as the distance between the two third wall portions 173 in the third direction X, and the width of the plate 13 in the third direction X large. Therefore, when both ends of the plate 13 in the first direction Z are arranged in the first groove portion 160 and the second groove portion 170, the movement range of the plate 13 in the third direction X is limited by the third wall portion 163 and the third wall portion 173. Regulated. That is, the third wall portion 163 and the third wall portion 173 function as the second regulation portion 152 that regulates the movement range of the plate 13 in the third direction X.

第２規制部１５２（第３壁部１６３および第３壁部１７３）は、プレート１３の第３方向Ｘの移動範囲を規制することにより、プレート１３を介してワイヤ１０の第３方向Ｘの移動範囲を規制する。本実施形態では、ワイヤ１０の第３方向Ｘの一方側（＋Ｘ方向）への移動範囲は、ワイヤ１０が開口部２３の＋Ｘ方向の縁と接触するよりも先に、プレート１３が第３壁部１６３および第３壁部１７３と接触することによって規制される。また、ワイヤ１０の第３方向Ｘの他方側（−Ｘ方向）への移動範囲は、ワイヤ１０が開口部２３の−Ｘ方向の縁部と接触するよりも先に、プレート１３が第３壁部１６３および第３壁部１７３と接触することによって規制される。 The second restricting portion 152 (the third wall portion 163 and the third wall portion 173) restricts the movement range of the plate 13 in the third direction X, so that the wire 10 moves in the third direction X via the plate 13. Regulate the range. In the present embodiment, the movement range of the wire 10 in the one side of the third direction X (+X direction) is such that the plate 13 moves to the third wall before the wire 10 contacts the edge of the opening 23 in the +X direction. It is regulated by coming into contact with the portion 163 and the third wall portion 173. In addition, the range of movement of the wire 10 to the other side (−X direction) in the third direction X is before the wire 10 comes into contact with the edge portion of the opening 23 in the −X direction. It is regulated by coming into contact with the portion 163 and the third wall portion 173.

なお、第２規制部１５２として、第３壁部１６３と第３壁部１７３のいずれか一方が設けられていても良い。第３壁部１６３と第３壁部１７３のいずれか一方でも、プレート１３の第３方向Ｘの移動範囲を規制可能である。従って、プレート１３を介して、ワイヤ１０の第３方向Ｘの移動範囲を規制可能である。 Note that either the third wall portion 163 or the third wall portion 173 may be provided as the second restricting portion 152. Either one of the third wall portion 163 and the third wall portion 173 can regulate the movement range of the plate 13 in the third direction X. Therefore, the movement range of the wire 10 in the third direction X can be regulated via the plate 13.

（ワイヤ位置規制部）
図７に示すように、第２ケース２２は、第２ケース側規制部１７とプーリ１１との間において底板部２２０から−Ｚ方向へ突出するワイヤ位置規制部１９を備える。本実施形態では、ワイヤ位置規制部１９は第２方向Ｙに直線状に延びる壁であり、矩形凹部１８の＋Ｘ方向側において、第２ケース側規制部１７の第２壁部１７２と繋がっている。従って、ワイヤ位置規制部１９は、ワイヤ１０の＋Ｘ方向側に配置される。 (Wire position restriction unit)
As shown in FIG. 7, the second case 22 includes a wire position restricting portion 19 that projects between the second case side restricting portion 17 and the pulley 11 from the bottom plate portion 220 in the −Z direction. In the present embodiment, the wire position restricting portion 19 is a wall that linearly extends in the second direction Y, and is connected to the second wall portion 172 of the second case side restricting portion 17 on the +X direction side of the rectangular concave portion 18. .. Therefore, the wire position restricting portion 19 is arranged on the +X direction side of the wire 10.

図８は、開口部２３の側（すなわち、−Ｙ方向）から見たプーリ１１とワイヤ位置規制部１９の配置を模式的に示す説明図である。上記のように、ワイヤ１０は、プーリ１１に設けられた溝１２に配置される。溝１２は、プーリ１１の外周面で開口しており、外周側に向かうに従って第１方向Ｚの開口幅が増大する略Ｖ字断面の溝である。 FIG. 8 is an explanatory view schematically showing the arrangement of the pulley 11 and the wire position restricting portion 19 as seen from the opening 23 side (that is, the −Y direction). As described above, the wire 10 is arranged in the groove 12 provided in the pulley 11. The groove 12 is a groove having a substantially V-shaped cross section, which is opened on the outer peripheral surface of the pulley 11 and whose opening width in the first direction Z increases toward the outer peripheral side.

図８に示すように、ワイヤ位置規制部１９と、プーリ１１の外周面との間には第３方向Ｘの隙間Ｓがあるが、隙間Ｓはワイヤ径Ｄよりも小さい。すなわち、ワイヤ位置規制部１９は、Ｓ＜Ｄの条件を満たす位置に配置される。 As shown in FIG. 8, there is a gap S in the third direction X between the wire position restricting portion 19 and the outer peripheral surface of the pulley 11, but the gap S is smaller than the wire diameter D. That is, the wire position restricting portion 19 is arranged at a position satisfying the condition of S<D.

ワイヤ位置規制部１９は、プーリ１１の溝１２から開口部２３へ向かうワイヤ１０の＋Ｘ方向側に配置されているので、ワイヤ１０の＋Ｘ方向への移動は、ワイヤ位置規制部１
９によって規制される。このため、ワイヤ１０が開口部２３の外側で＋Ｘ方向へ引っ張られてワイヤ１０の引き出し方向が＋Ｘ方向へ傾くことがあっても、ワイヤ位置規制部１９より＋Ｘ方向側へワイヤ１０が移動することがない。よって、ワイヤ位置規制部１９とプーリ１１の外周面との第３方向Ｘの隙間Ｓをワイヤ径Ｄよりも小さくしておけば、ワイヤ１０の引き出し方向が＋Ｘ方向へ傾くことがあっても、ワイヤ１０が溝１２から完全に外れることはない。従って、ワイヤ位置規制部１９を設けることで、プーリ１１からワイヤ１０が外れることを抑制できる。 Since the wire position restricting portion 19 is arranged on the +X direction side of the wire 10 from the groove 12 of the pulley 11 toward the opening 23, the wire position restricting portion 1 moves in the +X direction.
Regulated by 9. Therefore, even if the wire 10 is pulled in the +X direction outside the opening 23 and the pull-out direction of the wire 10 is tilted in the +X direction, the wire 10 moves to the +X direction side from the wire position restricting portion 19. There is no. Therefore, if the gap S between the wire position restricting portion 19 and the outer peripheral surface of the pulley 11 in the third direction X is made smaller than the wire diameter D, even if the pulling-out direction of the wire 10 may be tilted in the +X direction, The wire 10 does not come off the groove 12 completely. Therefore, by providing the wire position restricting portion 19, it is possible to prevent the wire 10 from coming off the pulley 11.

（本発明の主な作用効果）
以上のように、本形態の排水弁駆動装置１は、排水弁が連結されるワイヤ１０と、ワイヤ１０が連結されるプーリ１１と、プーリ１１を駆動するモータ４０およびギアユニット２と、プーリ１１、モータ４０およびギアユニット２を収容するケース２０を有する。ケース２０は、ワイヤ１０を外部へ引き出す開口部２３と、開口部２３とプーリ１１との間でワイヤ１０の位置を規制するワイヤ位置規制部１９と、を備え、開口部２３からプーリ１１へ向かう方向（＋Ｙ方向）から見て、ワイヤ位置規制部１９とプーリ１１との隙間Ｓは、ワイヤ径Ｄより小さい。 (Main effects of the present invention)
As described above, the drain valve driving device 1 of the present embodiment includes the wire 10 to which the drain valve is connected, the pulley 11 to which the wire 10 is connected, the motor 40 and the gear unit 2 that drive the pulley 11, and the pulley 11. It has a case 20 that houses the motor 40 and the gear unit 2. The case 20 includes an opening 23 that draws out the wire 10 to the outside, and a wire position restricting portion 19 that restricts the position of the wire 10 between the opening 23 and the pulley 11, and goes from the opening 23 to the pulley 11. When viewed from the direction (+Y direction), the gap S between the wire position restricting portion 19 and the pulley 11 is smaller than the wire diameter D.

本実施形態では、このように、開口部２３の側から見てプーリ１１との隙間Ｓがワイヤ径Ｄ（ワイヤの直径）より小さい位置にワイヤ位置規制部１９が設けられているので、プーリ１１から外れない範囲でしかワイヤ１０を動かすことができないようにワイヤ１０の位置を規制できる。従って、ワイヤ１０の引き出し方向が変化することがあっても、プーリ１１から外れる位置にワイヤ１０が移動することはない。従って、プーリ１１からワイヤ１０が外れて排水弁を開閉できなくなることを回避できる。 In the present embodiment, as described above, the wire position restricting portion 19 is provided at a position where the gap S with the pulley 11 is smaller than the wire diameter D (wire diameter) when viewed from the opening 23 side. The position of the wire 10 can be regulated so that the wire 10 can be moved only within a range that does not deviate from it. Therefore, even if the pull-out direction of the wire 10 changes, the wire 10 does not move to the position where it is separated from the pulley 11. Therefore, it can be avoided that the wire 10 comes off from the pulley 11 and the drain valve cannot be opened or closed.

本実施形態では、ワイヤ位置規制部１９は、ワイヤ位置規制部１９が位置する側（＋Ｘ方向）へのワイヤ１０の移動範囲を、開口部２３の縁とワイヤ１０とが接触しない範囲に規制できる。すなわち、ワイヤ位置規制部１９は、ワイヤ１０が＋Ｘ方向へ移動したとき、開口部２３の＋Ｘ方向の縁にワイヤ１０が接触するよりも先に、ワイヤ位置規制部１９がワイヤ１０と接触する位置に配置される。従って、ワイヤ位置規制部１９を設けることにより、ケース２０とワイヤ１０との接触に起因するワイヤ１０の損傷を回避できる。 In the present embodiment, the wire position restricting portion 19 can restrict the moving range of the wire 10 to the side where the wire position restricting portion 19 is located (+X direction) to a range in which the edge of the opening 23 and the wire 10 do not contact each other. .. That is, when the wire 10 moves in the +X direction, the wire position restricting portion 19 contacts a position where the wire position restricting portion 19 contacts the wire 10 before the wire 10 contacts the edge of the opening 23 in the +X direction. Is located in. Therefore, by providing the wire position restricting portion 19, it is possible to avoid damage to the wire 10 due to contact between the case 20 and the wire 10.

本実施形態では、ワイヤ位置規制部１９は、開口部２３からプーリ１１へ向かう方向（＋Ｙ方向）へ延びる壁である。このように、連続した壁を設けることにより、ワイヤ位置規制部１９の強度を高めることができる。また、面によってワイヤ１０をガイドできるため、ワイヤ位置規制部１９との接触に起因するワイヤ１０の断線が発生しにくい。 In the present embodiment, the wire position restricting portion 19 is a wall extending in the direction (+Y direction) from the opening 23 toward the pulley 11. By thus providing the continuous wall, the strength of the wire position restricting portion 19 can be increased. Further, since the wire 10 can be guided by the surface, disconnection of the wire 10 due to contact with the wire position restricting portion 19 is unlikely to occur.

なお、ワイヤ位置規制部１９の形状は壁に限定されるものではない。例えば、底板部２２０から突出する突起を１箇所あるいは複数個所に設けることにより、壁状のワイヤ位置規制部１９と同様にワイヤ１０の位置を規制できる。 The shape of the wire position restricting portion 19 is not limited to the wall. For example, the position of the wire 10 can be regulated in the same manner as the wall-shaped wire position regulating portion 19 by providing protrusions protruding from the bottom plate portion 220 at one place or a plurality of places.

本実施形態では、ワイヤ１０がプレート１３の貫通部１４に通され、プレート１３によって保持される。ケース２０は、第１方向Ｚで対向する第１ケース２１と第２ケース２２とを組み立てて構成され、ワイヤ１０は、第１ケース２１の第１側壁部２１１を切り欠いた開口部２３と、第２ケース２２の第２側壁部２２１との間を通ってケース２０の外部へ引き出される。第２ケース２２は、開口部２３とプーリ１１との間に配置されるプレート１３の移動を規制する規制部１５のうち、第２ケース２２の側に設けられる第２ケース側規制部１７を備え、第２ケース側規制部１７は、開口部２３からプーリ１１へ向かう第２方向Ｙと交差し、且つ、第１方向Ｚと交差する第３方向Ｘへ延びる第２壁部１７２を備え、ワイヤ位置規制部１９は、第２壁部１７２からプーリ１１の側へ延びており、ワイヤ１０の第３方向Ｘの位置を規制する位置に配置される。このような構成により、プレート１
３を介してワイヤ１０の移動を規制できる。また、第２ケース側規制部１７とプーリ１１との間では、壁状のワイヤ位置規制部１９によってワイヤ１０の位置を規制できる。従って、ワイヤ１０とケース２０との接触を回避し、且つ、プーリ１１から外れる位置にワイヤ１０が移動することを回避できる。 In the present embodiment, the wire 10 is passed through the penetrating portion 14 of the plate 13 and held by the plate 13. The case 20 is configured by assembling a first case 21 and a second case 22 that face each other in the first direction Z, and the wire 10 has an opening 23 formed by cutting out the first side wall portion 211 of the first case 21, It is drawn out of the case 20 through a space between the second case 22 and the second side wall portion 221. The second case 22 includes a second case side restricting portion 17 provided on the side of the second case 22 among the restricting portions 15 that restrict the movement of the plate 13 arranged between the opening 23 and the pulley 11. The second case side restricting portion 17 includes a second wall portion 172 that intersects with the second direction Y from the opening 23 toward the pulley 11 and extends in the third direction X that intersects with the first direction Z. The position restricting portion 19 extends from the second wall portion 172 to the pulley 11 side and is arranged at a position that restricts the position of the wire 10 in the third direction X. With this configuration, the plate 1
The movement of the wire 10 can be regulated via the cable 3. Further, the position of the wire 10 can be regulated by the wall-shaped wire position regulation part 19 between the second case side regulation part 17 and the pulley 11. Therefore, it is possible to avoid the contact between the wire 10 and the case 20, and to prevent the wire 10 from moving to the position where it is separated from the pulley 11.

また、本実施形態では、開口部２３から水や異物が侵入することがあっても、プレート１３によってプーリ１１やモータ４０およびギアユニット２側への侵入が抑制される。従って、水や異物の侵入に起因するモータ４０およびギアユニット２の動作不良を抑制できる。 Further, in the present embodiment, even if water or foreign matter may enter from the opening 23, the plate 13 suppresses the entry to the pulley 11, the motor 40, and the gear unit 2 side. Therefore, malfunction of the motor 40 and the gear unit 2 due to the intrusion of water or foreign matter can be suppressed.

なお、本実施形態では、貫通部１４はプレート１３の中央を貫通する貫通孔であるが、貫通部１４はプレート１３の外周縁からプレート１３の中央まで延びる切り欠き状の溝であってもよい。貫通部１４が溝である場合には、ワイヤ１０を通す作業が容易である。従って、組立容易性を高めることができる。 In the present embodiment, the penetrating portion 14 is a penetrating hole penetrating the center of the plate 13, but the penetrating portion 14 may be a notch-shaped groove extending from the outer peripheral edge of the plate 13 to the center of the plate 13. .. When the penetrating portion 14 is a groove, the work of inserting the wire 10 is easy. Therefore, the ease of assembly can be improved.

本実施形態では、排水弁が連結される排水弁駆動部材はワイヤであり、ワイヤ１０が連結される出力部材はプーリ１１である。このように、排水弁駆動部材として可撓性のワイヤ１０を用いることにより、開口部２３に接触しない範囲でワイヤ１０を引き出す方向を変えることができる。従って、排水弁駆動装置１の配置の自由度が高まる。また、排水弁駆動装置１を固定する際の位置精度が低くても、ワイヤ１０を介して排水弁を開閉できる。 In this embodiment, the drain valve driving member connected to the drain valve is a wire, and the output member connected to the wire 10 is a pulley 11. As described above, by using the flexible wire 10 as the drain valve driving member, the direction in which the wire 10 is pulled out can be changed within a range where the wire 10 is not in contact with the opening 23. Therefore, the degree of freedom in disposing the drain valve drive device 1 is increased. Further, even if the positional accuracy when fixing the drain valve driving device 1 is low, the drain valve can be opened and closed via the wire 10.

１…排水弁駆動装置、２…ギアユニット、１０…ワイヤ、１１…プーリ、１２…溝、１３…プレート、１４…貫通部、１５…規制部、１６…第１ケース側規制部、１７…第２ケース側規制部、１８…矩形凹部、１９…ワイヤ位置規制部、２０…ケース、２１…第１ケース、２２…第２ケース、２３…開口部、２４…水除け部、４０…モータ、４１…モータケース、４２…支持プレート、４３…ボビン、４４…ステータコイル、４５…ロータ、５０…伝達輪列、５１…ロータピニオン、５２…遊星歯車機構、５３…減速ギア、５４…出力ギア、６０…第１クラッチ機構、７０…回転規制機構、８０…第２クラッチ機構、１５１…第１規制部、１５２…第２規制部、１６０…第１溝部、１６１…第１壁部、１６２…第２壁部、１６３…第３壁部、１７０…第２溝部、１７１…第１壁部、１７２…第２壁部、１７３…第３壁部、１８１…第１矩形凹部、１８２…第２矩形凹部、２１０…上板部、２１１…第１側壁部、２１２…第２ケース覆い部、２１３…第１段部、２１４…内側凸部、２１５…外側凹部、２１６、２１７…平面部、２２０…底板部、２２１…第２側壁部、２２２…円形凹部、２２３…第２段部、２２４…内側凹部、２２５…外側凸部、２４１…傾斜面、Ｄ…ワイヤ径、Ｓ…ワイヤ位置規制部とプーリの外周面との第３方向の隙間、Ｘ…第３方向、Ｙ…第２方向、Ｚ…第１方向 DESCRIPTION OF SYMBOLS 1... Drain valve drive device, 2... Gear unit, 10... Wire, 11... Pulley, 12... Groove, 13... Plate, 14... Penetration part, 15... Restriction part, 16... 1st case side restriction part, 17... 2 case side regulation part, 18... Rectangular recessed part, 19... Wire position regulation part, 20... Case, 21... First case, 22... Second case, 23... Opening part, 24... Drainage part, 40... Motor, 41 ... motor case, 42... support plate, 43... bobbin, 44... stator coil, 45... rotor, 50... transmission wheel train, 51... rotor pinion, 52... planetary gear mechanism, 53... reduction gear, 54... output gear, 60 ... 1st clutch mechanism, 70... Rotation regulation mechanism, 80... 2nd clutch mechanism, 151... 1st regulation part, 152... 2nd regulation part, 160... 1st groove part, 161... 1st wall part, 162... 2nd Wall portion, 163... Third wall portion, 170... Second groove portion, 171... First wall portion, 172... Second wall portion, 173... Third wall portion, 181... First rectangular concave portion, 182... Second rectangular concave portion , 210... Upper plate part, 211... First side wall part, 212... Second case cover part, 213... First step part, 214... Inner convex part, 215... Outer concave part, 216, 217... Flat part, 220... Bottom plate 221... Second side wall part, 222... Circular concave part, 223... Second step part, 224... Inner concave part, 225... Outer convex part, 241... Inclined surface, D... Wire diameter, S... Wire position restricting part and pulley In the third direction from the outer peripheral surface of the, X... third direction, Y... second direction, Z... first direction

Claims (4)

排水弁が連結されるワイヤと、
前記ワイヤが連結されるプーリと、
前記プーリを駆動する駆動部と、
前記プーリおよび前記駆動部を収容するケースと、を有し、
前記ケースは、
前記ワイヤを外部へ引き出す開口部と、
前記開口部と前記プーリとの間で前記ワイヤの位置を規制するワイヤ位置規制部と、を備え、
前記開口部から前記プーリへ向かう方向から見て、前記ワイヤ位置規制部と前記プーリとの隙間は、前記ワイヤの直径より小さいことを特徴とする排水弁駆動装置。 A wire to which the drain valve is connected,
A pulley to which the wire is connected,
A drive unit for driving the pulley,
A case accommodating the pulley and the drive unit,
The case is
An opening for pulling out the wire to the outside,
A wire position restricting portion that restricts a position of the wire between the opening portion and the pulley,
The drain valve driving device, wherein a gap between the wire position restricting portion and the pulley is smaller than a diameter of the wire when viewed from a direction from the opening toward the pulley. 前記ワイヤ位置規制部は、前記ワイヤ位置規制部が位置する側への前記ワイヤの移動範囲を、前記開口部の縁と前記ワイヤとが接触しない範囲に規制することを特徴とする請求項１に記載の排水弁駆動装置。 The wire position restricting portion restricts a movement range of the wire toward a side where the wire position restricting portion is located to a range in which an edge of the opening and the wire are not in contact with each other. The drain valve driving device described. 前記ワイヤ位置規制部は、前記開口部から前記プーリへ向かう方向へ延びる壁であることを特徴とする請求項１または２に記載の排水弁駆動装置。 The drain valve drive device according to claim 1 or 2, wherein the wire position restricting portion is a wall extending in a direction from the opening portion to the pulley. 前記ワイヤを通す貫通部を備えたプレートを有し、
前記ケースは、第１方向で対向する第１ケースおよび第２ケースを備え、
前記第１ケースは、第１側壁部を備え、前記開口部は、前記第１側壁部を切り欠いた切り欠き部であり、前記ワイヤは、前記切り欠き部と前記第２ケースとの間を通って前記ケースの外部へ引き出され、
前記第２ケースは、前記開口部と前記プーリとの間に配置される前記プレートの移動を規制する規制部を備え、
前記規制部は、前記開口部から前記プーリへ向かう第２方向と交差し、且つ、前記第１方向と交差する第３方向へ延びており、
前記ワイヤ位置規制部は、前記規制部から前記プーリの側へ延びており、前記ワイヤの前記第３方向の位置を規制することを特徴とする請求項３に記載の排水弁駆動装置。 A plate having a through portion for passing the wire,
The case includes a first case and a second case facing each other in the first direction,
The first case includes a first side wall portion, the opening is a cutout portion obtained by cutting out the first side wall portion, and the wire is provided between the cutout portion and the second case. It is pulled out to the outside of the case through
The second case includes a restricting portion that restricts movement of the plate arranged between the opening and the pulley,
The restriction portion extends in a third direction that intersects the second direction from the opening to the pulley and that intersects the first direction,
The drain valve drive device according to claim 3, wherein the wire position restricting portion extends from the restricting portion toward the pulley and restricts a position of the wire in the third direction.
JP2018235970A 2018-12-18 2018-12-18 Drain valve driving device Ceased JP2020097983A (en)

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