JP6198544B2 - Electric switchgear - Google Patents

Electric switchgear Download PDF

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JP6198544B2
JP6198544B2 JP2013198905A JP2013198905A JP6198544B2 JP 6198544 B2 JP6198544 B2 JP 6198544B2 JP 2013198905 A JP2013198905 A JP 2013198905A JP 2013198905 A JP2013198905 A JP 2013198905A JP 6198544 B2 JP6198544 B2 JP 6198544B2
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gear
case member
rotation
detection unit
case
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JP2015065766A (en
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敏臣 宮下
敏臣 宮下
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Nidec Sankyo Corp
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Description

本発明は、モータの駆動力により出力部材を駆動して開閉動作を行う電動開閉装置に関するものである。   The present invention relates to an electric opening / closing device that performs an opening / closing operation by driving an output member by a driving force of a motor.

モータの駆動力により出力部材を駆動して開閉動作を行う電動開閉装置としては、例えば、便座や便蓋に開閉動作を行わせる便蓋・便座開閉装置が提案されており、かかる電動開閉装置では、モータの回転を減速輪列によって出力部材に伝達する（特許文献１参照）。また、特許文献１に記載の電動開閉装置では、減速輪列の歯車の回転を、ポテンショ歯車を介してポテンションメータ等の回転検出部に伝達し、出力部材の回転位置を検出するようになっている。   As an electric opening / closing device that opens and closes by driving an output member by a driving force of a motor, for example, a toilet lid / toilet seat opening / closing device that performs an opening / closing operation on a toilet seat or a toilet lid has been proposed. Then, the rotation of the motor is transmitted to the output member by the reduction gear train (see Patent Document 1). Further, in the electric switchgear described in Patent Document 1, the rotation of the gear of the reduction gear train is transmitted to a rotation detector such as a potentiometer via a potentiometer, and the rotation position of the output member is detected. ing.

特開２００９−１２４８０８号公報JP 2009-124808 A

しかしながら、特許文献１の構成では、減速輪列の歯車にグリスを多量に塗布した場合、歯車が回転した際の遠心力によって余分なグリスが周囲に飛散する可能性があり、飛散したグリスが回転検出部に付着すると、誤検出等の原因となる恐れがある。   However, in the configuration of Patent Document 1, when a large amount of grease is applied to the gears of the reduction gear train, excess grease may be scattered around by the centrifugal force when the gears rotate, and the scattered grease rotates. If it adheres to the detector, it may cause false detection.

以上の問題点に鑑みて、本発明の課題は、減速輪列の歯車にグリスを塗布した場合でも、回転検出部へのグリスの付着を抑制することのできる電動開閉装置を提供することにある。   In view of the above problems, an object of the present invention is to provide an electric switchgear that can suppress the adhesion of grease to the rotation detection unit even when grease is applied to the gears of the reduction gear train. .

上記課題を解決するために、本発明を適用した電動開閉装置は、モータ軸にモータピニオンが設けられたモータと、出力部材と、前記モータピニオンと噛合する大径歯車および前記大径歯車より小径の小径歯車を同軸上に備えた１番歯車を含み、前記モータの回転を減速して前記出力部材に伝達する減速輪列と、前記減速輪列に用いた複数の歯車のうち、グリス付き歯車の径方向外側で当該グリス付き歯車と隣り合う位置に配置され、前記出力部材の回転位置を検出する回転検出部と、前記グリス付き歯車と前記回転検出部との間を仕切る仕切り壁と、前記モータの胴部の出力側端部が固定された第１ケース部材と、該第１ケース部材の一方面側に対向する第２ケース部材と、前記第１ケース部材の他方面側に対向する第３ケース部材と、を有し、前記第１ケース部材と前記第２ケース部材との間に、前記モータ軸、前記モータピニオン、前記第１歯車の前記大径歯車、および前記回転検出部が配置され、前記第２ケース部材と前記第３ケース部材との間には、前記複数の歯車のうち、前記１番歯車を除く全ての歯車が配置され、前記グリス付き歯車は、前記１番歯車の前記大径歯車であって、前記１番歯車の前記大径歯車と前記回転検出部との間が前記仕切り壁によって仕切られていることを特徴とする。 In order to solve the above problems, an electric switchgear to which the present invention is applied includes a motor having a motor pinion on a motor shaft, an output member, a large-diameter gear meshing with the motor pinion, and a smaller diameter than the large-diameter gear. of the small diameter gear comprises one toothed wheel having coaxially a reduction gear train for transmitting the output member by decelerating the rotation of the motor, among the plurality of gears used in the reduction gear train, the grease having gear are arranged at positions in the radially outward adjacent to the grease attached wheel, a rotation detecting section for detecting a rotational position of the output member, and a partition wall for partitioning between the grease attached wheel and the rotation detection unit, wherein A first case member to which an output side end of the body of the motor is fixed; a second case member facing one side of the first case member; and a second case member facing the other side of the first case member. 3 case members The motor case, the motor pinion, the large-diameter gear of the first gear, and the rotation detector are disposed between the first case member and the second case member, and the second case member And the third case member, all gears of the plurality of gears except the first gear are disposed, and the greased gear is the large-diameter gear of the first gear, The large diameter gear of the first gear and the rotation detector are partitioned by the partition wall .

本発明では、グリス付き歯車と回転検出部との間が仕切り壁によって仕切られているため、グリス付き歯車の径方向外側でグリス付き歯車と隣り合う位置に回転検出部を配置した場合でも、グリスが回転検出部に付着しにくい。従って、グリスの付着に起因する回転検出部での誤検出等の不具合の発生を抑制することができる。   In the present invention, since the gear with the grease and the rotation detection unit are partitioned by the partition wall, even when the rotation detection unit is arranged at a position adjacent to the gear with the grease on the radially outer side of the gear with the grease, Is difficult to adhere to the rotation detector. Therefore, it is possible to suppress the occurrence of problems such as erroneous detection at the rotation detection unit due to the adhesion of grease.

また、１番歯車は回転速度が高いため、遠心力によってグリスが飛散しやすいが、本発明によれば、かかる場合でも、回転検出部へのグリスの付着を仕切り壁によって抑制することができる。 Further, since the first gear has a high rotational speed, grease is likely to be scattered by centrifugal force. However, according to the present invention, the adhesion of the grease to the rotation detection unit can be suppressed by the partition wall even in such a case.

また、一番歯車、モータピニオン、および回転検出部を第１ケース部材と第２ケース部材とによって区画された空間内に配置すると、１番歯車から飛散したグリスが回転検出部に付着しやすいが、本発明によれば、かかる場合でも、回転検出部へのグリスの付着を仕切り壁によって抑制することができる。 Further, when the first gear , the motor pinion, and the rotation detection unit are arranged in a space defined by the first case member and the second case member, grease scattered from the first gear is likely to adhere to the rotation detection unit. According to the present invention, even in such a case, the adhesion of grease to the rotation detection unit can be suppressed by the partition wall.

本発明において、前記第１ケース部材または前記第３ケース部材に設けられているとともに前記出力部材の停止位置を規定するストッパ部と、前記減速輪列に用いた複数の歯車のうちのいずれかの歯車と噛合して当該歯車の回転を前記回転検出部に伝達する回転検出用従動歯車と、を有し、前記減速輪列において前記回転検出用従動歯車より出力側の歯車は、前記第１ケース部材と前記第３ケース部材とにより直接または支軸を介して回転可能に支持されていることが好ましい。かかる構成によれば、電動開閉装置を組み立てる際、第２ケース部材を設けない状態で、出力部材を所定の位置に停止させた状態に合わせて、減速輪列の出力側の歯車や回転検出用従動歯車の位置を合わせることができるので、回転検出部の基準位置の設定を容易に行うことができる。   In the present invention, a stopper portion that is provided on the first case member or the third case member and defines a stop position of the output member, and any one of a plurality of gears used for the reduction gear train A rotation detecting driven gear that meshes with a gear and transmits the rotation of the gear to the rotation detecting unit, and the output gear of the reduction gear train is more than the first case. It is preferable that the member and the third case member are rotatably supported directly or via a support shaft. According to this configuration, when assembling the electric switchgear, the gear on the output side of the reduction gear train and the rotation detection gear are matched with the state where the output member is stopped at a predetermined position without the second case member. Since the position of the driven gear can be adjusted, the reference position of the rotation detection unit can be easily set.

本発明において、前記仕切り壁は、前記第１ケース部材において第２ケース部材と対向する面、および前記第２ケース部材において前記第１ケース部材と対向する面の一方に形成された凸部からなることが好ましい。例えば、前記仕切り壁は、前記第２ケース部材において前記第１ケース部材と対向する面に形成された凸部からなることが好ましい。かかる構成によれば、仕切り壁を構成する部材を別途、追加する必要がないという利点がある。   In the present invention, the partition wall includes a convex portion formed on one of a surface of the first case member facing the second case member and a surface of the second case member facing the first case member. It is preferable. For example, it is preferable that the partition wall includes a convex portion formed on a surface of the second case member that faces the first case member. According to such a configuration, there is an advantage that it is not necessary to separately add a member constituting the partition wall.

本発明において、前記仕切り壁は、前記グリス付き歯車と前記回転検出部とに挟まれた対向領域、該対向領域から前記グリス付き歯車と前記回転検出部の中心とを結ぶ線に対して交差する方向の一方側および他方側に延在していることが好ましい。かかる構成によれば、グリスが回転検出部に付着するのを効果的に抑制することができる。   In the present invention, the partition wall intersects a facing region sandwiched between the gear with grease and the rotation detection unit, and a line connecting the gear with grease and the center of the rotation detection unit from the facing region. It is preferable to extend to one side and the other side of the direction. According to such a configuration, it is possible to effectively suppress the grease from adhering to the rotation detection unit.

本発明において、前記仕切り壁は、前記方向に設けられたケース内壁まで連続して延在していることが好ましい。かかる構成によれば、グリスが回転検出部に付着するのを効果的に抑制することができる。   In this invention, it is preferable that the said partition wall is continuously extended to the case inner wall provided in the said direction. According to such a configuration, it is possible to effectively suppress the grease from adhering to the rotation detection unit.

本発明において、前記回転検出部は、前記仕切り壁および前記グリス付き歯車より上方位置に配置されていることが好ましい。かかる構成によれば、グリスが自重で回転検出部に付着することを防止することができる。   In this invention, it is preferable that the said rotation detection part is arrange | positioned above the said partition wall and the said gear with a grease. According to this configuration, it is possible to prevent the grease from adhering to the rotation detection unit with its own weight.

本発明は、前記回転検出部は、抵抗体に対してブラシが摺動するポテンショメータを備えている場合に適用すると効果的である。ポテショメータの場合、抵抗体とブラシとの接点にグリスが付着すると、絶縁状態となって、致命的な不具合となるため、本発明を適用した場合の効果が顕著である。   The present invention is effective when applied to a case where the rotation detection unit includes a potentiometer in which a brush slides with respect to a resistor. In the case of a potentiometer, if grease adheres to the contact point between the resistor and the brush, it becomes an insulating state, resulting in a fatal problem. Therefore, the effect of applying the present invention is remarkable.

本発明によれば、グリス付き歯車の径方向外側でグリス付き歯車と隣り合う位置に回転検出部を配置した場合でも、グリスが回転検出部に付着しにくい。従って、グリスの付着に起因する回転検出部での誤検出等の不具合の発生を抑制することができる。   According to the present invention, even when the rotation detection unit is arranged at a position adjacent to the gear with the grease on the radially outer side of the gear with the grease, the grease is difficult to adhere to the rotation detection unit. Therefore, it is possible to suppress the occurrence of problems such as erroneous detection at the rotation detection unit due to the adhesion of grease.

本発明を適用した電動開閉装置が搭載される洋式便器の説明図である。It is explanatory drawing of the western style toilet bowl in which the electric switchgear to which this invention is applied is mounted. 本発明を適用した電動開閉装置の斜視図である。It is a perspective view of the electric switchgear to which the present invention is applied. 本発明を適用した電動開閉装置の側面図である。It is a side view of the electric switchgear to which the present invention is applied. 本発明を適用した電動開閉装置に用いた減速輪列等の説明図である。It is explanatory drawing of the reduction gear train etc. which were used for the electric switchgear to which this invention is applied. 本発明を適用した電動開閉装置の分解斜視図である。It is a disassembled perspective view of the electric switchgear to which the present invention is applied. 本発明を適用した電動開閉装置に用いた第１ケース部材の斜視図である。It is a perspective view of the 1st case member used for the electric switchgear to which the present invention is applied. 本発明を適用した電動開閉装置に用いた第２ケース部材のＺ方向の他方側の構成を示す説明図である。It is explanatory drawing which shows the structure of the other side of the Z direction of the 2nd case member used for the electric switchgear to which this invention is applied. 本発明を適用した電動開閉装置に設けた減速輪列の斜視図である。It is a perspective view of the reduction gear train provided in the electric switchgear to which the present invention is applied. 本発明を適用した電動開閉装置に設けた減速輪列の２番歯車の斜視図である。It is a perspective view of the 2nd gear of the reduction gear train provided in the electric switchgear to which the present invention is applied. 本発明を適用した電動開閉装置において、回転検出部と１番歯車との間の構成を示す断面図である。In the electric switchgear to which the present invention is applied, it is a sectional view showing a configuration between a rotation detection unit and a first gear.

以下、図面を参照して、本発明の実施の形態の電動開閉装置を説明する。以下の説明では、説明の便宜上、互いに直交する方向をＸ方向、Ｙ方向、Ｚ方向とし、出力部材の回転中心軸線Ｌと平行な方向をＺ方向として説明する。また、電動開閉装置の長さ方向（上下方向）をＹ方向とし、電動開閉装置の幅方向（水平方向）をＸ方向とする。また、Ｘ方向の一方側をＸ１とし、Ｘ方向の他方側をＸ２とし、Ｙ方向の一方側をＹ１とし、Ｙ方向の他方側をＹ２とし、Ｚ方向の一方側をＺ１とし、Ｚ方向の他方側をＺ２とする。また、出力部材の回転中心軸線Ｌが延在している方向をＺ方向として説明する。また、出力部材の回転中心軸線Ｌが延在している方向の一方側をＬ１とし、他方側をＬ２する。また、出力部材の回転中心軸線Ｌが延在している方向の一方側Ｌ１とＺ方向の一方側Ｚ１とを同一方向とし、回転中心軸線Ｌが延在している方向の他方側Ｌ２とＺ方向の他方側Ｚ２とを同一方向とする。   Hereinafter, an electric switchgear according to an embodiment of the present invention will be described with reference to the drawings. In the following description, for convenience of description, directions orthogonal to each other will be referred to as an X direction, a Y direction, and a Z direction, and a direction parallel to the rotation center axis L of the output member will be described as a Z direction. Further, the length direction (vertical direction) of the electric switchgear is set as the Y direction, and the width direction (horizontal direction) of the electric switchgear is set as the X direction. Also, one side in the X direction is X1, the other side in the X direction is X2, one side in the Y direction is Y1, the other side in the Y direction is Y2, one side in the Z direction is Z1, and Let the other side be Z2. The direction in which the rotation center axis L of the output member extends will be described as the Z direction. Further, one side in the direction in which the rotation center axis L of the output member extends is L1, and the other side is L2. Further, the one side L1 in the direction in which the rotation center axis L of the output member extends and the one side Z1 in the Z direction are the same direction, and the other side L2 and Z in the direction in which the rotation center axis L extends. Let the other side Z2 of a direction be the same direction.

（洋式便器の説明）
図１は、本発明を適用した電動開閉装置が搭載される洋式便器の説明図である。図１に示す洋式便器１００は、便器本体１１０、便器本体１１０に被さる便座１２０、便座１２０に被さる便蓋１３０、およびタンク１４０等を有している。便座１２０および便蓋１３０の各々には、電動開閉装置１が設けられており、便座１２０および便蓋１３０は、電動開閉装置１の後述する出力部材によって駆動されて回転中心軸線Ｌ周りに回転する。なお、便座１２０および便蓋１３０の一方のみに電動開閉装置１を設ける場合や、便座１２０のみに電動開閉装置１を設け、便座１２０によって、便蓋１３０を閉姿勢から開姿勢に切り換えることもある。 (Explanation of Western toilet)
FIG. 1 is an explanatory view of a Western-style toilet equipped with an electric switchgear to which the present invention is applied. A western toilet 100 shown in FIG. 1 includes a toilet body 110, a toilet seat 120 covering the toilet body 110, a toilet lid 130 covering the toilet seat 120, a tank 140, and the like. Each of the toilet seat 120 and the toilet lid 130 is provided with the electric opening / closing device 1, and the toilet seat 120 and the toilet lid 130 are driven by an output member (to be described later) of the electric opening / closing device 1 to rotate around the rotation center axis L. . In addition, when the electric opening / closing device 1 is provided only on one of the toilet seat 120 and the toilet lid 130, or the electric opening / closing device 1 is provided only on the toilet seat 120, the toilet lid 130 may be switched from the closed posture to the open posture. .

（電動開閉装置１の全体構成および固定構造）
図２は、本発明を適用した電動開閉装置１の斜視図であり、図２（ａ）、（ｂ）は、電動開閉装置１をＺ方向の一方側Ｚ１からみた斜視図、および電動開閉装置１をＺ方向の他方側Ｚ２からみた斜視図である。図３は、本発明を適用した電動開閉装置１の側面図であり、図３（ａ）、（ｂ）は、電動開閉装置１をＸ方向の他方側Ｘ２からみた側面図、および電動開閉装置１をＸ方向の一方側Ｘ１からみた側面図である。 (Overall configuration and fixing structure of the electric switchgear 1)
FIG. 2 is a perspective view of the electric switchgear 1 to which the present invention is applied. FIGS. 2A and 2B are a perspective view of the electric switchgear 1 viewed from one side Z1 in the Z direction, and the electric switchgear. It is the perspective view which looked at 1 from the other side Z2 of the Z direction. FIG. 3 is a side view of the electric switchgear 1 to which the present invention is applied. FIGS. 3A and 3B are a side view of the electric switchgear 1 viewed from the other side X2 in the X direction, and the electric switchgear. It is the side view which looked at 1 from the one side X1 of the X direction.

図４は、本発明を適用した電動開閉装置１に用いた減速輪列等の説明図であり、図４（ａ）、（ｂ）は、減速輪列等をＺ方向の一方側Ｚ１から見た平面図、および減速輪列の歯車中心等に沿って電動開閉装置１を切断したときの断面図である。すなわち、図４（ｂ）は、減速輪列の歯車中心等に沿って、位置Ｐｏ−Ｐｂ−Ｐｄ−Ｐｅ−Ｐｆ−Ｐｇ−Ｐｈに沿って電動開閉装置１をＺ方向に切断したときの断面図である。   FIG. 4 is an explanatory diagram of a reduction gear train and the like used in the electric switchgear 1 to which the present invention is applied. FIGS. 4 (a) and 4 (b) show the reduction gear train and the like viewed from one side Z1 in the Z direction. It is sectional drawing when the electric switchgear 1 is cut | disconnected along the center view and the gear center of a reduction gear train. That is, FIG. 4B is a cross-section when the electric switching device 1 is cut in the Z direction along the position Po-Pb-Pd-Pe-Pf-Pg-Ph along the gear center of the reduction gear train. FIG.

図２、図３および図４に示すように、本形態の電動開閉装置１は、概ね、モータ２と、出力部材３と、モータ２の回転を減速して出力部材３に伝達する減速輪列４と、モータ２、出力部材３、および減速輪列４を内側に保持するケース体５とを有している。モータ２は、ステータが構成された胴部２１と、胴部２１のＺ方向の一方側Ｚ１の端部２１０から突出したモータ軸２２とを有している。モータ軸２２にはモータピニオン２４が固着されている。   As shown in FIG. 2, FIG. 3, and FIG. 4, the electric opening / closing device 1 of the present embodiment generally includes a motor 2, an output member 3, and a reduction gear train that decelerates the rotation of the motor 2 and transmits it to the output member 3. 4, a motor 2, an output member 3, and a case body 5 that holds the reduction gear train 4 inside. The motor 2 includes a body portion 21 in which a stator is formed, and a motor shaft 22 protruding from an end portion 210 on one side Z1 of the body portion 21 in the Z direction. A motor pinion 24 is fixed to the motor shaft 22.

ケース体５は、第１ケース部材５１と、第１ケース部材５１に対してＺ方向の一方側Ｚ１から被さって第１ケース部材５１と対向する第２ケース部材５２と、第１ケース部材５１に対してＺ方向の他方側Ｚ２から被さって第１ケース部材５１と対向する第３ケース部材５３とを有している。ケース体５において、第１ケース部材５１、第２ケース部材５２および第３ケース部材５３は、端部に止められたねじ５０４で連結されている。本形態において、第１ケース部材５１、第２ケース部材５２および第３ケース部材５３はいずれも樹脂製である。例えば、第１ケース部材５１および第３ケース部材５３はガラス繊維入りのＰＢＴ樹脂からなり、第２ケース部材５２はＡＢＳ樹脂からなる。   The case body 5 includes a first case member 51, a second case member 52 that covers the first case member 51 from one side Z <b> 1 in the Z direction and faces the first case member 51, and the first case member 51. On the other hand, it has the 3rd case member 53 which covers from the other side Z2 of a Z direction, and opposes the 1st case member 51. FIG. In the case body 5, the first case member 51, the second case member 52, and the third case member 53 are connected by a screw 504 that is stopped at the end. In this embodiment, the first case member 51, the second case member 52, and the third case member 53 are all made of resin. For example, the first case member 51 and the third case member 53 are made of PBT resin containing glass fiber, and the second case member 52 is made of ABS resin.

出力部材３は、Ｚ軸方向に延在する筒状部材からなり、Ｚ軸方向の一方側Ｚ１から他方側Ｚ２に向かって、第１筒部３１と、第１筒部３１より大径のフランジ部３２と、第１筒部３１より小径の第２筒部３３とを有している。フランジ部３２の外周面には、減速輪列４の最終段の歯車（第４歯車４４）と噛合する歯車３２０が形成されている。   The output member 3 is composed of a cylindrical member extending in the Z-axis direction, and has a first cylindrical portion 31 and a flange having a larger diameter than the first cylindrical portion 31 from one side Z1 in the Z-axis direction toward the other side Z2. And a second cylindrical portion 33 having a smaller diameter than the first cylindrical portion 31. On the outer peripheral surface of the flange portion 32, a gear 320 that meshes with the final gear (fourth gear 44) of the reduction gear train 4 is formed.

本形態では、出力部材３は、回転中心軸線Ｌの一方側Ｌ１および他方側Ｌ２の双方から回転出力が可能である。より具体的には、第１筒部３１には、Ｚ軸方向の一方側Ｚ１に向けて開口する第１連結用凹部３１０が形成されており、第１連結用凹部３１０には、Ｚ軸方向の一方側Ｚ１から、図１に示す便座や便蓋を駆動する駆動軸１５０が嵌められる。その際は、図３（ａ）に示すように、ケース体５のＺ方向の一方側Ｚ１の面５０１を洋式便器１００のフレーム１７０に当接させた状態で、Ｚ方向の一方側Ｚ１から、セルフタップねじからなる２本の第１ねじ１７１、１７２をフレーム１７０およびケース体５に止めてケース体５をフレーム１７０に固定する。   In this embodiment, the output member 3 can rotate and output from both the one side L1 and the other side L2 of the rotation center axis L. More specifically, the first cylindrical portion 31 is formed with a first connecting recess 310 that opens toward one side Z1 in the Z-axis direction, and the first connecting recess 310 has a Z-axis direction. From one side Z1, a drive shaft 150 for driving the toilet seat and the toilet lid shown in FIG. 1 is fitted. At that time, as shown in FIG. 3A, in the state where the surface 501 on one side Z1 in the Z direction of the case body 5 is brought into contact with the frame 170 of the Western-style toilet 100, from one side Z1 in the Z direction, The two first screws 171 and 172 made of self-tapping screws are fixed to the frame 170 and the case body 5 to fix the case body 5 to the frame 170.

第２筒部３３には、Ｚ軸方向の他方側Ｚ２に向けて開口する第２連結用凹部３３０が形成されており、第２連結用凹部３３０には、Ｚ軸方向の他方側Ｚ２から、図１に示す便座や便蓋を駆動する駆動軸１６０を嵌めることが可能である。本形態では、第１連結用凹部３１０の内径は、第２連結用凹部３３０の内径より大である。このため、駆動軸の外径寸法に応じて、駆動軸を第１連結用凹部３１０および第２連結用凹部３３０のいずれに連結するかを選択することができる。第２連結用凹部３３０に駆動軸１６０を嵌める場合、図３（ｂ）に示すように、ケース体５のＺ方向の他方側Ｚ２の面５０２を洋式便器１００のフレーム１８０に当接させた状態で、Ｚ方向の他方側Ｚ２から、セルフタップねじからなる２本の第２ねじ１８１、１８２をフレーム１８０およびケース体５に止めて、ケース体５をフレーム１８０に固定する。   The second cylindrical portion 33 is formed with a second connecting recess 330 that opens toward the other side Z2 in the Z-axis direction, and the second connecting recess 330 is formed from the other side Z2 in the Z-axis direction, A drive shaft 160 for driving the toilet seat and the toilet lid shown in FIG. 1 can be fitted. In the present embodiment, the inner diameter of the first connecting recess 310 is larger than the inner diameter of the second connecting recess 330. For this reason, it is possible to select which of the first connection recess 310 and the second connection recess 330 is connected to the drive shaft according to the outer diameter of the drive shaft. When the drive shaft 160 is fitted into the second connecting recess 330, the surface 502 on the other side Z2 in the Z direction of the case body 5 is in contact with the frame 180 of the western toilet 100, as shown in FIG. Thus, from the other side Z2 in the Z direction, the two second screws 181 and 182 made of self-tapping screws are fixed to the frame 180 and the case body 5, and the case body 5 is fixed to the frame 180.

なお、図３（ａ）に示すように、第１連結用凹部３１０に駆動軸１５０を嵌めて利用する際、図３（ｂ）に示すように、ケース体５のＺ方向の他方側Ｚ２の面５０２を洋式便器１００のフレーム１８０に当接させた状態で、Ｚ方向の他方側Ｚ２から、セルフタップねじからなる２本の第２ねじ１８１、１８２をフレーム１８０およびケース体５に止めて、ケース体５をフレーム１８０に固定してもよい。また、図３（ｂ）に示すように、第２連結用凹部３３０に駆動軸１６０を嵌めて利用する際、図３（ａ）に示すように、ケース体５のＺ方向の一方側Ｚ１の面５０１を洋式便器１００のフレーム１７０に当接させた状態で、Ｚ方向の一方側Ｚ１から、セルフタップねじからなる２本の第１ねじ１７１、１７２をフレーム１７０およびケース体５に止めて、ケース体５をフレーム１７０に固定してもよい。   As shown in FIG. 3A, when the drive shaft 150 is fitted and used in the first connecting recess 310, as shown in FIG. 3B, the other side Z2 of the case body 5 in the Z direction is shown. With the surface 502 in contact with the frame 180 of the western toilet 100, the two second screws 181 and 182 made of self-tapping screws are fastened to the frame 180 and the case body 5 from the other side Z2 in the Z direction. The case body 5 may be fixed to the frame 180. Further, as shown in FIG. 3B, when the drive shaft 160 is fitted and used in the second coupling recess 330, as shown in FIG. 3A, as shown in FIG. With the surface 501 in contact with the frame 170 of the western toilet 100, the two first screws 171 and 172 made of self-tapping screws are fastened to the frame 170 and the case body 5 from one side Z1 in the Z direction. The case body 5 may be fixed to the frame 170.

（第１ケース部材５１の詳細構成）
図５は、本発明を適用した電動開閉装置１の分解斜視図であり、図５（ａ）、（ｂ）は、電動開閉装置１において第２ケース部材５２を外した状態をＺ方向の一方側Ｚ１からみた分解斜視図、および電動開閉装置１において第２ケース部材５２と第３ケース部材５３とを外した状態をＺ方向の一方側Ｚ１からみた分解斜視図である。図６は、本発明を適用した電動開閉装置１に用いた第１ケース部材５１の斜視図であり、図６（ａ）、（ｂ）は、第１ケース部材５１をＺ方向の一方側Ｚ１からみた斜視図、および第１ケース部材５１をＺ方向の一方側Ｚ１からみた分解斜視図である。 (Detailed configuration of the first case member 51)
FIG. 5 is an exploded perspective view of the electric switchgear 1 to which the present invention is applied. FIGS. 5A and 5B show a state in which the second case member 52 is removed from the electric switchgear 1 in one of the Z directions. FIG. 4 is an exploded perspective view seen from the side Z1, and an exploded perspective view seen from one side Z1 in the Z direction with the second case member 52 and the third case member 53 removed in the electric switching device 1. FIG. 6 is a perspective view of the first case member 51 used in the electric switchgear 1 to which the present invention is applied. FIGS. 6A and 6B show the first case member 51 on one side Z1 in the Z direction. It is the perspective view seen from, and the disassembled perspective view which looked at the 1st case member 51 from the one side Z1 of the Z direction.

図４、図５および図６に示すように、第１ケース部材５１は、Ｚ方向に厚さ方向を向けた板状部材であり、Ｙ方向に延在した板状部５１１と、板状部５１１に対してＹ方向の他方側Ｙ２の外側円筒部５１２と、板状部５１１の端部に沿って形成された側板部５１３とを有している。外側円筒部５１２のＺ方向の他方側Ｚ２の端部は開放端になっている一方、外側円筒部５１２のＺ方向の一方側Ｚ１の端部には底板部５１４が形成されている。底板部５１４には、出力部材３の第１連結用凹部３１０と軸線Ｌ方向で重なる円形の開口部５１４ａが形成されている。   As shown in FIGS. 4, 5, and 6, the first case member 51 is a plate-like member having a thickness direction in the Z direction, a plate-like portion 511 extending in the Y direction, and a plate-like portion. An outer cylindrical portion 512 on the other side Y2 in the Y direction with respect to 511, and a side plate portion 513 formed along an end portion of the plate-like portion 511. The end portion on the other side Z2 in the Z direction of the outer cylindrical portion 512 is an open end, while a bottom plate portion 514 is formed on the end portion on the one side Z1 in the Z direction of the outer cylindrical portion 512. The bottom plate portion 514 is formed with a circular opening 514a that overlaps with the first connecting recess 310 of the output member 3 in the axis L direction.

第１ケース部材５１において、底板部５１４の開口部５１４ａの開口縁よりやや外周側位置からはＺ方向の他方側Ｚ２に向けて、外側円筒部５１２と同軸状の内側円筒部５１５が延在しており、内側円筒部５１５は、第１筒部３１を介して出力部材３を回転可能に支持している。出力部材３のＺ方向の一方側Ｚ１の移動は、フランジ部３２と第１筒部３１との間に形成された段部３２５に内側円筒部５１５のＺ方向の他方側Ｚ２の端部が対向することにより制限されている。   In the first case member 51, an inner cylindrical portion 515 that is coaxial with the outer cylindrical portion 512 extends toward the other side Z2 in the Z direction from a position slightly outside the opening edge of the opening 514a of the bottom plate portion 514 toward the other side Z2. The inner cylindrical portion 515 supports the output member 3 via the first cylindrical portion 31 so as to be rotatable. The movement of the output member 3 on one side Z1 in the Z direction is opposite to the step portion 325 formed between the flange portion 32 and the first tube portion 31 on the other side Z2 end of the inner cylindrical portion 515 in the Z direction. Is limited by.

内側円筒部５１５のＺ方向の他方側Ｚ２の端部は開放端になっており、外側円筒部５１２と内側円筒部５１５との間には、Ｚ方向の他方側Ｚ２に向けて開口する溝５１２ａが周方向に延在するように形成されている。溝５１２ａには、図４に示すリング状の付勢部材が配置されている。本形態において、付勢部材６は、コイルバネからなるアシストバネであり、一方端が出力部材３に接続され、他方端は第１ケース部材５１に接続されている。このため、出力部材３が回転中心軸線Ｌ周りに回転した際、付勢部材６は捩じれることになる。従って、付勢部材６のコイルバネを一方方向に捩じった状態で出力部材３と第１ケース部材５１とに接続しておくと、付勢部材６は、出力部材３が一方方向に回転する際、抗力を発生する一方、出力部材３が他方方向に回転する際、付勢力を発生する。それ故、例えば、図１に示す便座１２０や便蓋１３０が起立姿勢から平伏姿勢に切り換わる際、付勢部材６によって抗力を発生させる一方、便座１２０や便蓋１３０が平伏姿勢から起立姿勢に切り換わる際、付勢部材６によって付勢力を発生させることができる。このため、便座１２０や便蓋１３０の姿勢をスムーズに切り換えることができる。また、便座１２０や便蓋１３０が自立した状態を保持することもできる。なお、外側円筒部５１２の内周面には、Ｚ方向に延在するリブ状突部５１２ｃが周方向の複数個所に形成されており、リブ状突部５１２ｃは、付勢部材６であるコイルバネが拡径した際の受け部になっている。   An end portion of the other side Z2 in the Z direction of the inner cylindrical portion 515 is an open end, and a groove 512a that opens toward the other side Z2 in the Z direction between the outer cylindrical portion 512 and the inner cylindrical portion 515. Is formed so as to extend in the circumferential direction. A ring-shaped urging member shown in FIG. 4 is disposed in the groove 512a. In this embodiment, the urging member 6 is an assist spring including a coil spring, and one end is connected to the output member 3 and the other end is connected to the first case member 51. For this reason, when the output member 3 rotates around the rotation center axis L, the urging member 6 is twisted. Therefore, if the output member 3 and the first case member 51 are connected in a state where the coil spring of the biasing member 6 is twisted in one direction, the biasing member 6 rotates the output member 3 in one direction. At the same time, a drag force is generated, while a biasing force is generated when the output member 3 rotates in the other direction. Therefore, for example, when the toilet seat 120 and the toilet lid 130 shown in FIG. 1 are switched from the standing posture to the flat posture, the urging member 6 generates a drag, while the toilet seat 120 and the toilet lid 130 are changed from the flat posture to the standing posture. When switching, a biasing force can be generated by the biasing member 6. For this reason, the postures of the toilet seat 120 and the toilet lid 130 can be switched smoothly. Further, the toilet seat 120 and the toilet lid 130 can be kept in a self-supporting state. Note that rib-shaped protrusions 512c extending in the Z direction are formed at a plurality of locations in the circumferential direction on the inner peripheral surface of the outer cylindrical portion 512, and the rib-shaped protrusions 512c are coil springs that are biasing members 6. Is a receiving part when the diameter is expanded.

第１ケース部材５１の板状部５１１において、Ｙ方向の一方側Ｙ１には、ねじ２９１、２９２が止められた穴５１１ａ、５１１ｂが形成されており、かかるねじ２９１、２９２は、穴５１１ａ、５１１ｂを介してモータ２の胴部２１のＺ方向の一方側Ｚ１の端部２１０に止められている。従って、モータ２は、第１ケース部材５１に固定され、モータ軸２２は、第１ケース部材５１の板状部５１１の穴５１１ｃからＹ方向の一方側Ｙ１に突出している。モータ軸２２にはモータピニオン２４が固着されている。   In the plate-like portion 511 of the first case member 51, holes 511a and 511b to which screws 291 and 292 are fixed are formed on one side Y1 in the Y direction. The screws 291 and 292 are formed in the holes 511a and 511b. Is fixed to the end portion 210 on one side Z1 of the body portion 21 of the motor 2 in the Z direction. Therefore, the motor 2 is fixed to the first case member 51, and the motor shaft 22 protrudes from the hole 511 c of the plate-like portion 511 of the first case member 51 to one side Y <b> 1 in the Y direction. A motor pinion 24 is fixed to the motor shaft 22.

図６に示すように、板状部５１１において、Ｘ方向およびＹ方向の略中央位置には開口部５１１ｅが形成され、開口部５１１ｅに対してＹ方向の他方側Ｙ２には、開口部５１１ｅより大径の開口部５１１ｆが形成されている。また、板状部５１１において、開口部５１１ｆにＹ方向の他方側Ｙ２で隣り合う位置にはＺ方向の一方側Ｚ１に向く穴５１１ｒが形成されている。   As shown in FIG. 6, in the plate-like portion 511, an opening 511e is formed at a substantially central position in the X direction and the Y direction, and the other side Y2 in the Y direction with respect to the opening 511e is from the opening 511e. A large-diameter opening 511f is formed. In the plate-like portion 511, a hole 511r facing the one side Z1 in the Z direction is formed at a position adjacent to the opening 511f on the other side Y2 in the Y direction.

また、板状部５１１のＺ方向の他方側Ｚ２には、開口部５１１ｆに対してＺ方向の他方側Ｚ２で重なる位置にアーム部５１１ｇが形成されている。アーム部５１１ｇは、開口部５１１ｆの中心と重なる位置で屈曲し、かかる屈曲部分５１１ｉには、Ｚ方向の一方側Ｚ１に向けて開口する軸孔５１１ｈが形成されている。アーム部５１１ｇの根元部分において、Ｚ方向の他方側Ｚ２には、Ｚ方向の他方側Ｚ２に向けて開口する筒部５１１ｓが形成され、アーム部５１１ｇの先端部分には、Ｚ方向の他方側Ｚ２に向けて開口する筒部５１１ｔが形成されている。   Further, on the other side Z2 in the Z direction of the plate-like portion 511, an arm portion 511g is formed at a position overlapping the opening 511f on the other side Z2 in the Z direction. The arm portion 511g is bent at a position overlapping with the center of the opening portion 511f, and a shaft hole 511h that opens toward one side Z1 in the Z direction is formed in the bent portion 511i. In the base portion of the arm portion 511g, a cylindrical portion 511s that opens toward the other side Z2 in the Z direction is formed on the other side Z2 in the Z direction, and the other side Z2 in the Z direction is formed on the tip portion of the arm portion 511g. A cylindrical portion 511t that opens toward the bottom is formed.

板状部５１１のＺ方向の他方側Ｚ２の面において、開口部５１１ｅ、５１１ｆに隣り合う位置には、Ｚ方向の他方側Ｚ２に向けて開口する筒部５１１ｕが形成されている。また、板状部５１１のＺ方向の他方側Ｚ２の面において、開口部５１１ｆにＹ方向の他方側Ｙ２で隣り合う位置には、Ｚ方向の他方側Ｚ２に向けて開口する筒部５１１ｖが形成されている。   On the surface on the other side Z2 in the Z direction of the plate-like portion 511, a cylindrical portion 511u that opens toward the other side Z2 in the Z direction is formed at a position adjacent to the openings 511e and 511f. Further, on the surface of the other side Z2 in the Z direction of the plate-like portion 511, a cylindrical portion 511v that opens toward the other side Z2 in the Z direction is formed at a position adjacent to the opening 511f on the other side Y2 in the Y direction. Has been.

（第１ねじ止め部の構成）
板状部５１１のＺ方向の一方側Ｚ１の面において、開口部５１１ｆにＸ方向の一方側Ｘ１で隣り合う位置には、Ｚ方向の一方側Ｚ１に向けて筒状に突出する第１ねじ止め部５１１ｘが形成され、穴５１１ｃにＸ方向の他方側Ｘ２で隣り合う位置には、Ｚ方向の一方側Ｚ１に向けて筒状に突出する第１ねじ止め部５１１ｙが形成されている。第１ねじ止め部５１１ｘ、５１１ｙは、図３（ａ）に示すように、電動開閉装置１をフレーム１７０に固定する際に第１ねじ１７１、１７２が止められる部分である。なお、第１ねじ止め部５１１ｙと側板部５１３とは補強リブ５１１ｚで繋がっている。 (Configuration of the first screwing portion)
On the surface of one side Z1 in the Z direction of the plate-like portion 511, a first screwing projecting in a cylindrical shape toward the one side Z1 in the Z direction is located adjacent to the opening 511f on the one side X1 in the X direction. A portion 511x is formed, and a first screwing portion 511y protruding in a cylindrical shape toward the one side Z1 in the Z direction is formed at a position adjacent to the hole 511c on the other side X2 in the X direction. The first screwing portions 511x and 511y are portions where the first screws 171 and 172 are stopped when the electric switching device 1 is fixed to the frame 170 as shown in FIG. In addition, the 1st screwing part 511y and the side-plate part 513 are connected with the reinforcement rib 511z.

第１ねじ止め部５１１ｘ、５１１ｙのＺ方向の一方側Ｚ１の面は、Ｚ方向の同一の位置にあり、後述する第１取り付け面５５０（図３参照）の一部を構成している。   The surface on one side Z1 in the Z direction of the first screwing portions 511x and 511y is at the same position in the Z direction, and constitutes a part of a first mounting surface 550 (see FIG. 3) described later.

（第３ケース部材５３の詳細構成）
図２（ｂ）、図３、図４および図５において、第３ケース部材５３は、Ｚ方向に厚さ方向を向けてＹ方向に延在した板状部５３１と、板状部５３１に対してＹ方向の他方側Ｙ２に位置する端部に設けられた外側円筒部５３２と、板状部５３１の端部に沿って形成された側板部５３３とを有しており、側板部５３３は、板状部５３１の端部からＺ方向の一方側Ｚ１に起立した形状になっている。外側円筒部５３２のＺ方向の一方側Ｚ１の端部は開放端になっている一方、外側円筒部５３２のＺ方向の他方側Ｚ２の端部には底板部５３４が形成されている。底板部５３４には、出力部材３の第２連結用凹部３３０と軸線Ｌ方向で重なる円形の開口部５３４ａが形成されている。 (Detailed configuration of the third case member 53)
2B, 3, 4, and 5, the third case member 53 has a plate-like portion 531 that extends in the Y direction with the thickness direction facing the Z direction, and the plate-like portion 531. The outer cylindrical portion 532 provided at the end portion located on the other side Y2 in the Y direction and the side plate portion 533 formed along the end portion of the plate-like portion 531. The side plate portion 533 includes: It has a shape that stands from the end of the plate-like portion 531 to one side Z1 in the Z direction. An end portion on one side Z1 in the Z direction of the outer cylindrical portion 532 is an open end, and a bottom plate portion 534 is formed on an end portion on the other side Z2 in the Z direction of the outer cylindrical portion 532. The bottom plate portion 534 is formed with a circular opening 534a that overlaps with the second coupling recess 330 of the output member 3 in the axis L direction.

第３ケース部材５３の底板部５３４（図４参照）では、開口部５３４ａの開口縁よりやや外周側位置からＺ方向の一方側Ｚ１に向けて、外側円筒部５３２と同軸状の内側円筒部５３５が延在しており、内側円筒部５３５は、第２筒部３３を介して出力部材３を回転可能に支持している。出力部材３のＺ方向の他方側Ｚ２の移動は、フランジ部３２に内側円筒部５３５のＺ方向の一方側Ｚ１の端部が対向することにより制限されている。   In the bottom plate portion 534 (see FIG. 4) of the third case member 53, the inner cylindrical portion 535 is coaxial with the outer cylindrical portion 532 from the outer peripheral side position toward the one side Z1 in the Z direction slightly from the opening edge of the opening portion 534a. The inner cylindrical portion 535 supports the output member 3 via the second cylindrical portion 33 so as to be rotatable. The movement of the output member 3 on the other side Z2 in the Z direction is limited by the fact that the end portion of the one side Z1 in the Z direction of the inner cylindrical portion 535 faces the flange portion 32.

内側円筒部５３５のＺ方向の一方側Ｚ１の端部は開放端になっている。従って、外側円筒部５３２と内側円筒部５３５との間には、Ｚ方向の他方側Ｚ２に向けて開口する溝５３２ａが周方向に延在するように形成されている。溝５３２ａの内部では、外側円筒部５３２と内側円筒部５３５とに接続する補強用の板状連結部５３６が周方向の複数個所に形成されている。   The end of one side Z1 in the Z direction of the inner cylindrical portion 535 is an open end. Therefore, a groove 532a that opens toward the other side Z2 in the Z direction is formed between the outer cylindrical portion 532 and the inner cylindrical portion 535 so as to extend in the circumferential direction. Inside the groove 532a, reinforcing plate-like connecting portions 536 connected to the outer cylindrical portion 532 and the inner cylindrical portion 535 are formed at a plurality of locations in the circumferential direction.

第３ケース部材５３において、溝５３２ａの内部には、板状連結部５３６よりＺ方向の一方側Ｚ１に突出したストッパ部５３７（図５（ｂ）参照）が周方向で離間する２個所に形成されている一方、出力部材３のフランジ部３２には、Ｚ方向の他方側Ｚ２に突出した凸部３２７（図８（ａ）参照）が周方向の１箇所に形成されている。従って、出力部材３の回転は、凸部３２７が２つのストッパ部５３７と干渉するまでの角度範囲（２つのストッパ部５３７で挟まれた角度範囲）に制限されている。   In the third case member 53, stopper portions 537 (see FIG. 5B) that protrude from the plate-like connecting portion 536 to the one side Z <b> 1 in the Z direction are formed at two locations in the circumferential direction in the groove 532 a. On the other hand, the flange portion 32 of the output member 3 is formed with a convex portion 327 (see FIG. 8A) protruding to the other side Z2 in the Z direction at one location in the circumferential direction. Therefore, the rotation of the output member 3 is limited to an angle range (an angle range sandwiched between the two stopper portions 537) until the convex portion 327 interferes with the two stopper portions 537.

第３ケース部材５３の板状部５３１において、Ｙ方向の一方側Ｙ１の面には、モータ２の胴部２１の反出力側の端部（Ｚ方向の他方側Ｚ２の端部）を受ける円形の凹部５３１ｃが形成されている。板状部５３１のＹ方向の一方側Ｙ１の面において、凹部５３１ｃにＹ方向の他方側Ｙ２には、Ｚ軸方向の一方側Ｚ１に向けて開口する開口部を有する筒部５３１ｅが形成されており、筒部５３１ｅは、第１ケース部材５１の板状部５１１に形成された開口部５１１ｅを貫通して板状部５１１からＺ方向の一方側Ｚ１に突出している（図４参照）。板状部５３１のＹ方向の一方側Ｙ１の面において、筒部５３１ｅにＹ方向の他方側Ｙ２で隣り合う位置には、Ｚ方向の一方側Ｚ１に向けて開口する筒部５３１ｕが形成され、筒部５３１ｕは、第１ケース部材５１の板状部５１１に形成された筒部５１１ｕとＺ方向の他方側Ｚ２で重なる。板状部５３１のＺ方向の他方側Ｚ２の面では、筒部５３１ｕと重なる位置が凸部５３１ｓになっている。   In the plate-like portion 531 of the third case member 53, a circular shape that receives the end portion on the opposite side of the body portion 21 of the motor 2 (the end portion on the other side Z2 in the Z direction) on the surface on the one side Y1 in the Y direction. The recess 531c is formed. A cylindrical portion 531e having an opening that opens toward the one side Z1 in the Z-axis direction is formed in the concave portion 531c on the other side Y2 in the Y direction on the surface of one side Y1 in the Y direction of the plate-like portion 531. The cylindrical portion 531e passes through an opening 511e formed in the plate-like portion 511 of the first case member 51 and protrudes from the plate-like portion 511 to one side Z1 in the Z direction (see FIG. 4). A cylindrical portion 531u that opens toward the one side Z1 in the Z direction is formed at a position adjacent to the cylindrical portion 531e on the other side Y2 in the Y direction on the surface of one side Y1 in the Y direction of the plate-like portion 531. The cylindrical portion 531u overlaps the cylindrical portion 511u formed on the plate-like portion 511 of the first case member 51 on the other side Z2 in the Z direction. On the surface on the other side Z2 in the Z direction of the plate-like portion 531, a position overlapping with the cylindrical portion 531u is a convex portion 531s.

板状部５３１のＺ方向の一方側Ｚ１の面において、筒部５３１ｕにＸ方向の他方側Ｘ２で隣り合う位置には、Ｚ方向の一方側Ｚ１に向けて開口する筒部５３１ｔが形成され、筒部５３１ｔは、第１ケース部材５１の板状部５１１に形成された筒部５１１ｔとＺ方向の他方側Ｚ２で重なる。板状部５３１において、筒部５３１ｔにＹ方向の他方側Ｙ２で隣り合う位置には、Ｚ方向の一方側Ｚ１に向けて開口する筒部５３１ｖが形成され、筒部５３１ｖは、第１ケース部材５１の板状部５１１に形成された筒部５１１ｖとＺ方向の他方側Ｚ２で重なる。板状部５３１のＺ方向の他方側Ｚ２の面では、筒部５１１ｖと重なる位置が凸部５３１ｒになっている。   A cylindrical portion 531t that opens toward one side Z1 in the Z direction is formed at a position adjacent to the cylindrical portion 531u on the other side X2 in the X direction on the surface on the one side Z1 in the Z direction of the plate-like portion 531. The cylindrical portion 531t overlaps the cylindrical portion 511t formed on the plate-like portion 511 of the first case member 51 on the other side Z2 in the Z direction. In the plate-like portion 531, a cylindrical portion 531v that opens toward the one side Z1 in the Z direction is formed at a position adjacent to the cylindrical portion 531t on the other side Y2 in the Y direction, and the cylindrical portion 531v is the first case member. The cylinder portion 511v formed on the 51 plate-like portion 511 overlaps the other side Z2 in the Z direction. On the surface on the other side Z2 in the Z direction of the plate-like portion 531, a position overlapping the cylindrical portion 511v is a convex portion 531r.

板状部５３１のＺ方向の一方側Ｚ１の面において、筒部５３１ｖにＸ方向の他方側Ｘ２で隣り合う位置には、Ｚ方向の一方側Ｚ１に向けて突出する円柱部５３１ｍが形成され、円柱部５３１ｍの先端面には凸部５３１ｎが形成されている。かかる円柱部５３１ｍは、第１ケース部材５１のアーム部５１１ｇに形成された筒部５１１ｓとＺ方向の他方側Ｚ２で重なり、凸部５３１ｎは、筒部５１１ｓ（図６参照）の内側に嵌っている。   A cylindrical portion 531m that protrudes toward the one side Z1 in the Z direction is formed at a position adjacent to the cylindrical portion 531v on the other side X2 in the X direction on the surface on the one side Z1 in the Z direction of the plate-like portion 531. A convex portion 531n is formed on the tip surface of the cylindrical portion 531m. The cylindrical portion 531m overlaps the cylindrical portion 511s formed on the arm portion 511g of the first case member 51 on the other side Z2 in the Z direction, and the convex portion 531n is fitted inside the cylindrical portion 511s (see FIG. 6). Yes.

（第２ねじ止め部および第２取り付け面の構成）
板状部５３１のＺ方向の他方側Ｚ２の面において、外側円筒部５３２にＹ方向の一方側Ｙ１で隣り合う位置には、Ｚ方向の他方側Ｚ２に向けて筒状に突出する第２ねじ止め部５３１ｘが形成され、板状部５３１のＸ方向の一方側Ｘ１かつＹ方向の一方側Ｙ１の位置には、Ｚ方向の他方側Ｚ２に向けて筒状に突出する第２ねじ止め部５３１ｙが形成されている。かかる第２ねじ止め部５３１ｘ、５３１ｙは、図３（ｂ）に示すように、電動開閉装置１をフレーム１８０に固定する際に第２ねじ１８１、１８２が止められる部分である。 (Configuration of second screwing portion and second mounting surface)
A second screw projecting in a cylindrical shape toward the other side Z2 in the Z direction at a position adjacent to the outer cylindrical portion 532 on the one side Y1 in the Y direction on the surface on the other side Z2 in the Z direction of the plate-like part 531. A stop portion 531x is formed, and a second screw stop portion 531y protruding in a cylindrical shape toward the other side Z2 in the Z direction is located at one side X1 in the X direction and one side Y1 in the Y direction of the plate-like portion 531. Is formed. The second screwing portions 531x and 531y are portions where the second screws 181 and 182 are stopped when the electric switching device 1 is fixed to the frame 180, as shown in FIG.

また、板状部５３１において、Ｚ方向の他方側Ｚ２の面では、凹部５３１ｃと重なる位置に凸部５６１が形成され、凸部５６１にＸ方向の一方側Ｘ１で隣り合う位置には凸部５６２が形成されている。凸部５６１のＺ方向の他方側Ｚ２の面、凸部５６２のＺ方向の他方側Ｚ２の面、および底板部５３４のＺ方向の他方側Ｚ２の面は、Ｚ方向の同一の位置にあり、出力部材３の回転中心軸線Ｌに直交する第２取り付け面５６０を構成している。   In the plate-like portion 531, a convex portion 561 is formed at a position overlapping the concave portion 531c on the surface on the other side Z2 in the Z direction, and the convex portion 562 is located at a position adjacent to the convex portion 561 on one side X1 in the X direction. Is formed. The surface on the other side Z2 in the Z direction of the convex portion 561, the surface on the other side Z2 in the Z direction of the convex portion 562, and the surface on the other side Z2 in the Z direction of the bottom plate portion 534 are at the same position in the Z direction. A second attachment surface 560 that is orthogonal to the rotation center axis L of the output member 3 is configured.

また、第２ねじ止め部５３１ｘ、５３１ｙのＺ方向の他方側Ｚ２の面は、凸部５６１のＺ方向の他方側Ｚ２の面、凸部５６２のＺ方向の他方側Ｚ２の面、および底板部５３４のＺ方向の他方側Ｚ２の面とＺ方向の同一の位置にあり、出力部材３の回転中心軸線Ｌに直交する第２取り付け面５６０を構成している。かかる第２取り付け面５６０は、図３（ｂ）に示すように、電動開閉装置１をフレーム１８０に固定する際にフレーム１８０に当接する面である。   Further, the surface on the other side Z2 in the Z direction of the second screwing portions 531x and 531y is the surface on the other side Z2 in the Z direction of the convex portion 561, the surface on the other side Z2 in the Z direction of the convex portion 562, and the bottom plate portion. A second attachment surface 560 that is at the same position in the Z direction as the surface of the other side Z2 of 534 in the Z direction and that is orthogonal to the rotation center axis L of the output member 3 is configured. The second mounting surface 560 is a surface that comes into contact with the frame 180 when the electric opening / closing device 1 is fixed to the frame 180 as shown in FIG.

（第２ケース部材５２および第１取り付け面の詳細構成）
図７は、本発明を適用した電動開閉装置１に用いた第２ケース部材５２のＺ方向の他方側Ｚ２の構成を示す説明図であり、図７（ａ）、（ｂ）、（ｃ）は、第２ケース部材５２に対する１番歯車４１や回転検出部７の位置関係等を示す説明図、第２ケース部材５２に対する１番歯車４１の位置関係等を示す説明図、および回転検出部７の分解斜視図である。 (Detailed configuration of second case member 52 and first mounting surface)
FIG. 7 is an explanatory view showing the configuration of the other side Z2 in the Z direction of the second case member 52 used in the electric switchgear 1 to which the present invention is applied, and FIGS. 7 (a), 7 (b), and 7 (c). These are explanatory views showing the positional relationship and the like of the first gear 41 and the rotation detection unit 7 with respect to the second case member 52, explanatory views showing the positional relationship and the like of the first gear 41 with respect to the second case member 52, and the rotation detection unit 7. FIG.

図２（ａ）、図３、図４、図５および図７において、第２ケース部材５２は、Ｚ方向に厚さ方向に向けてＹ方向に延在した板状部５２１と、板状部５２１の端部に沿って形成された側板部５２３とを有しており、側板部５２３は、板状部５２１の端部からＺ方向の他方側Ｚ２に起立した形状になっている。板状部５２１において、Ｙ方向の他方側Ｙ２の端部は、第１ケース部材５１の底板部５１４の外縁に沿うように円弧状に形成されている。   2A, 3, 4, 5, and 7, the second case member 52 includes a plate-like portion 521 that extends in the Y direction toward the thickness direction in the Z direction, and a plate-like portion. The side plate portion 523 is formed along the end portion of the plate 521, and the side plate portion 523 has a shape standing from the end portion of the plate-like portion 521 to the other side Z2 in the Z direction. In the plate-like portion 521, the end portion on the other side Y <b> 2 in the Y direction is formed in an arc shape along the outer edge of the bottom plate portion 514 of the first case member 51.

板状部５２１において、第１ケース部材５１に形成した第１ねじ止め部５１１ｘと重なる位置には、第１ねじ止め部５１１ｘが嵌る開口部５２１ｘが形成され、第１ケース部材５１に形成した第１ねじ止め部５１１ｙと重なる位置には、第１ねじ止め部５１１ｙが嵌る開口部５２１ｙが形成されている。本形態において、第１ねじ止め部５１１ｘ、５１１ｙは、開口部５２１ｘ、５２１ｙを貫通して板状部５２１のＺ方向の一方側Ｚ１の面よりさらにＺ方向の一方側Ｚ１に突出している。   In the plate-like portion 521, an opening 521 x into which the first screwing portion 511 x is fitted is formed at a position overlapping the first screwing portion 511 x formed in the first case member 51, and the first case member 51 has a first opening formed in the first case member 51. An opening 521y into which the first screwing portion 511y is fitted is formed at a position overlapping with the one screwing portion 511y. In this embodiment, the first screwing portions 511x and 511y pass through the openings 521x and 521y and protrude further to the one side Z1 in the Z direction than the surface on the one side Z1 in the Z direction of the plate-like portion 521.

ここで、板状部５２１のＺ方向の一方側Ｚ１の面には、モータ軸２２と重なる位置でＺ方向の一方側Ｚ１に突出した凸部５５１と、第３ケース部材５３の筒部５３１ｅとＺ方向で重なる位置でＺ方向の一方側Ｚ１に突出した凸部５５２とが形成されている。凸部５５１のＺ方向の一方側Ｚ１の面、凸部５５２のＺ方向の一方側Ｚ１の面、および底板部５１４のＺ方向の一方側Ｚ１の面は、Ｚ方向の同一の位置にあり、出力部材３の回転中心軸線Ｌに直交する第１取り付け面５５０を構成している。   Here, on the surface on the one side Z1 in the Z direction of the plate-like portion 521, a convex portion 551 protruding to the one side Z1 in the Z direction at a position overlapping with the motor shaft 22, and a cylindrical portion 531e of the third case member 53, A protruding portion 552 that protrudes to one side Z1 in the Z direction is formed at a position overlapping in the Z direction. The surface on one side Z1 in the Z direction of the convex portion 551, the surface on one side Z1 in the Z direction of the convex portion 552, and the surface on one side Z1 in the Z direction of the bottom plate portion 514 are at the same position in the Z direction. A first attachment surface 550 that is orthogonal to the rotation center axis L of the output member 3 is configured.

また、第１ねじ止め部５１１ｘ、５１１ｙのＺ方向の一方側Ｚ１の面は、凸部５５１のＺ方向の一方側Ｚ１の面、凸部５５２のＺ方向の一方側Ｚ１の面、および底板部５１４のＺ方向の一方側Ｚ１の面とＺ方向の同一の位置にあり、出力部材３の回転中心軸線Ｌに直交する第１取り付け面５５０を構成している。かかる第１取り付け面５５０は、図３（ａ）に示すように、電動開閉装置１をフレーム１７０に固定する際にフレーム１７０に当接する面である。   Further, the surface on one side Z1 in the Z direction of the first screwing portions 511x and 511y is the surface on one side Z1 in the Z direction of the convex portion 551, the surface on the one side Z1 in the Z direction of the convex portion 552, and the bottom plate portion. A first attachment surface 550 that is at the same position in the Z direction as the surface of one side Z <b> 1 of 514 in the Z direction and orthogonal to the rotation center axis L of the output member 3 is configured. The first attachment surface 550 is a surface that comes into contact with the frame 170 when the electric opening / closing device 1 is fixed to the frame 170 as shown in FIG.

モータピニオン２４と１番歯車４１の大径歯車４１１は、ノイズ低減のためにはす歯で構成している。板状部５２１のＺ方向の他方側Ｚ２の面において、モータピニオン２４とＺ方向の一方側Ｚ１で重なる位置（凸部５５１にＺ方向の他方側Ｚ２で重なる位置）には凹部５２１ｃが形成されており、凹部５２１ｃの底部は、モータピニオン２４をＺ方向の一方側Ｚ１で支持している。また、板状部５２１のＺ方向の他方側Ｚ２の面において、第１ケース部材５１に形成した開口部５１１ｅおよび第３ケース部材５３に形成した筒部５３１ｅとＺ方向の一方側Ｚ１で重なる位置（凸部５５２にＺ方向の他方側Ｚ２で重なる位置）には凹部５２１ｅが形成されている。   The motor pinion 24 and the large-diameter gear 411 of the first gear 41 are constituted by helical teeth for noise reduction. A concave portion 521c is formed at a position overlapping the motor pinion 24 on one side Z1 in the Z direction (position overlapping the convex portion 551 on the other side Z2 in the Z direction) on the surface of the plate-like portion 521 on the other side Z2 in the Z direction. The bottom of the recess 521c supports the motor pinion 24 on one side Z1 in the Z direction. In addition, on the surface on the other side Z2 in the Z direction of the plate-like portion 521, a position overlapping the opening 511e formed in the first case member 51 and the cylindrical portion 531e formed in the third case member 53 on one side Z1 in the Z direction. A concave portion 521e is formed at a position overlapping the convex portion 552 on the other side Z2 in the Z direction.

また、板状部５２１のＺ方向の他方側Ｚ２の面において、第１ケース部材５１に形成した軸孔５１１ｈとＺ方向の一方側Ｚ１で重なる位置には、Ｚ方向の他方側Ｚ２に向けて開口する筒部５２１ｈが形成されている。また、板状部５２１のＺ方向の他方側Ｚ２の面において、筒部５２１ｈの周りには、Ｚ方向の他方側Ｚ２に向けて開口する３つの筒部５２１ｐが形成されている。   In addition, on the surface of the other side Z2 in the Z direction of the plate-like portion 521, the shaft hole 511h formed in the first case member 51 overlaps with the one side Z1 in the Z direction toward the other side Z2 in the Z direction. An open cylindrical portion 521h is formed. In addition, on the surface of the other side Z2 in the Z direction of the plate-like portion 521, three cylindrical portions 521p that open toward the other side Z2 in the Z direction are formed around the cylindrical portion 521h.

板状部５２１のＺ方向の他方側Ｚ２の面において、Ｘ方向の他方側Ｘ２およびＹ方向の他方側Ｙ２には、Ｚ方向の他方側Ｚ２に向けて突出する円柱部５２１ｒが形成され、円柱部５２１ｒは、第１ケース部材５１の板状部５１１に形成された穴５１１ｒにＺ方向の一方側Ｚ１で重なっている。円柱部５２１ｒには凸部５２１ｗが形成されており、凸部５２１ｗは、第１ケース部材５１の穴５１１ｒ（図６参照）に嵌っている。   On the surface of the other side Z2 in the Z direction of the plate-like part 521, a columnar part 521r that protrudes toward the other side Z2 in the Z direction is formed on the other side X2 in the X direction and the other side Y2 in the Y direction. The part 521r overlaps the hole 511r formed in the plate-like part 511 of the first case member 51 on one side Z1 in the Z direction. A convex portion 521w is formed on the cylindrical portion 521r, and the convex portion 521w is fitted in a hole 511r (see FIG. 6) of the first case member 51.

（減速輪列４の構成）
図８は、本発明を適用した電動開閉装置１に設けた減速輪列４の斜視図であり、図８（ａ）、（ｂ）は、減速輪列４をＺ方向の一方側Ｚ１からみた斜視図、および減速輪列４をＺ方向の他方側Ｚ２からみた斜視図である。 (Configuration of the reduction gear train 4)
FIG. 8 is a perspective view of the reduction gear train 4 provided in the electric switchgear 1 to which the present invention is applied. FIGS. 8A and 8B show the reduction gear train 4 viewed from one side Z1 in the Z direction. It is the perspective view which looked at the deceleration wheel train 4 from the other side Z2 of the Z direction.

図４および図８に示すように、電動開閉装置１に設けた減速輪列４は、モータピニオン２４から出力部材３に向かう伝達経路に１番歯車４１、２番歯車４２、３番歯車４３および４番歯車４４をこの順に有している。   As shown in FIGS. 4 and 8, the reduction gear train 4 provided in the electric opening and closing device 1 includes a first gear 41, a second gear 42, a third gear 43, and a transmission path from the motor pinion 24 to the output member 3. A fourth gear 44 is provided in this order.

１番歯車４１は、モータピニオン２４に噛合する大径歯車４１１と、大径歯車４１１と同軸上に一体に形成された小径歯車４１２とを有しており、大径歯車４１１と小径歯車４１２とは一体に回転する。１番歯車４１は支軸４１０に回転可能に支持され、支軸４１０は、第１ケース部材５１の開口部５１１ｅを貫通して、第２ケース部材５２の軸孔５２１ｅと第３ケース部材５３の筒部５３１ｅとによって両端が保持されている。この状態で、１番歯車４１の大径歯車４１１は、第１ケース部材５１と第２ケース部材５２との間に位置し、１番歯車４１の小径歯車４１２は、第１ケース部材５１と第２ケース部材５２との間、および第１ケース部材５１と第３ケース部材５３との間の双方に位置する。   The first gear 41 includes a large-diameter gear 411 that meshes with the motor pinion 24, and a small-diameter gear 412 that is integrally formed coaxially with the large-diameter gear 411, and the large-diameter gear 411, the small-diameter gear 412, and the like. Rotate together. The first gear 41 is rotatably supported by the support shaft 410, and the support shaft 410 passes through the opening 511 e of the first case member 51 and the shaft hole 521 e of the second case member 52 and the third case member 53. Both ends are held by the cylindrical portion 531e. In this state, the large-diameter gear 411 of the first gear 41 is positioned between the first case member 51 and the second case member 52, and the small-diameter gear 412 of the first gear 41 is connected to the first case member 51 and the first case member 51. It is located both between the two case members 52 and between the first case member 51 and the third case member 53.

２番歯車４２は、１番歯車４１の小径歯車４１２に噛合する大径歯車４２１と、大径歯車４２１と同軸上に設けられた小径歯車４２２とを有しており、大径歯車４２１と小径歯車４２２とは一体に回転する。２番歯車４２は支軸４２０に回転可能に支持され、支軸４２０は、第１ケース部材５１の筒部５１１ｕと第３ケース部材５３の筒部５３１ｕとによって両端が保持されている。従って、２番歯車４２は全体が第１ケース部材５１と第３ケース部材５３との間に位置する。   The second gear 42 includes a large-diameter gear 421 that meshes with the small-diameter gear 412 of the first gear 41, and a small-diameter gear 422 that is provided coaxially with the large-diameter gear 421. The gear 422 rotates integrally. The second gear 42 is rotatably supported on the support shaft 420, and both ends of the support shaft 420 are held by the tube portion 511 u of the first case member 51 and the tube portion 531 u of the third case member 53. Accordingly, the entire second gear 42 is located between the first case member 51 and the third case member 53.

３番歯車４３は、２番歯車４２の小径歯車４２２に噛合する大径歯車４３１と、大径歯車４３１と同軸上に形成された小径歯車４３２とを有しており、大径歯車４３１と小径歯車４３２とは一体に回転する。３番歯車４３は支軸４３０に回転可能に支持され、支軸４３０は、第１ケース部材５１の筒部５１１ｔと第３ケース部材５３の筒部５３１ｔとによって両端が保持されている。従って、３番歯車４３は全体が第１ケース部材５１と第３ケース部材５３との間に位置する。   The third gear 43 includes a large-diameter gear 431 that meshes with the small-diameter gear 422 of the second gear 42 and a small-diameter gear 432 that is formed coaxially with the large-diameter gear 431. The gear 432 rotates integrally. The third gear 43 is rotatably supported by the support shaft 430, and both ends of the support shaft 430 are held by the tube portion 511 t of the first case member 51 and the tube portion 531 t of the third case member 53. Accordingly, the entire third gear 43 is located between the first case member 51 and the third case member 53.

４番歯車４４は、３番歯車４３の小径歯車４３２に噛合する大径歯車４４１と、大径歯車４４１と同軸上に一体に形成された小径歯車４４２とを有しており、大径歯車４４１と小径歯車４４２とは一体に回転する。小径歯車４４２には、出力部材３のフランジ部３２の外周面に形成された歯車３２０が噛合している。ここで、歯車３２０の外径は、小径歯車４４２の外径より大である。４番歯車４４は支軸４４０に回転可能に支持され、支軸４４０は、第１ケース部材５１の筒部５１１ｖと第３ケース部材５３の筒部５３１ｖとによって両端が保持されている。従って、４番歯車４４は全体が第１ケース部材５１と第３ケース部材５３との間に位置する。   The fourth gear 44 includes a large-diameter gear 441 that meshes with the small-diameter gear 432 of the third gear 43, and a small-diameter gear 442 that is integrally formed coaxially with the large-diameter gear 441. And the small-diameter gear 442 rotate together. A gear 320 formed on the outer peripheral surface of the flange portion 32 of the output member 3 meshes with the small diameter gear 442. Here, the outer diameter of the gear 320 is larger than the outer diameter of the small-diameter gear 442. The fourth gear 44 is rotatably supported by the support shaft 440, and both ends of the support shaft 440 are held by the tube portion 511 v of the first case member 51 and the tube portion 531 v of the third case member 53. Accordingly, the entire fourth gear 44 is located between the first case member 51 and the third case member 53.

このように構成した減速輪列４において、１番歯車４１、２番歯車４２、３番歯車４３および４番歯車４４の歯面にグリスが塗布されており、１番歯車４１、２番歯車４２、３番歯車４３および４番歯車４４はいずれもグリス付き歯車として構成されている。また、モータピニオン２４および出力部材３の歯車３２０にも、歯面にグリスが塗布されている。   In the reduction wheel train 4 configured as described above, grease is applied to the tooth surfaces of the first gear 41, the second gear 42, the third gear 43 and the fourth gear 44, and the first gear 41, the second gear 42. The third gear 43 and the fourth gear 44 are both configured as gears with grease. Further, grease is applied to the tooth surfaces of the motor pinion 24 and the gear 320 of the output member 3.

（トルクリミッタの構成）
図９は、本発明を適用した電動開閉装置１に設けた減速輪列４の２番歯車の斜視図であり、図９（ａ）、（ｂ）は、２番歯車をＺ方向の一方側Ｚ１からみた斜視図、および２番歯車をＺ方向の一方側Ｚ１からみた分解斜視図である。 (Configuration of torque limiter)
FIG. 9 is a perspective view of the second gear of the reduction gear train 4 provided in the electric switchgear 1 to which the present invention is applied. FIGS. 9 (a) and 9 (b) show the second gear on one side in the Z direction. They are the perspective view seen from Z1, and the exploded perspective view which looked at the 2nd gear from one side Z1 of the Z direction.

図９に示すように、２番歯車４２は、大径歯車４２１が形成されたカップ状の第１回転部材４８と、小径歯車４２２が形成された第２回転部材４９とからなり、第１回転部材４８と第２回転部材４９との間にトルクリミッタ４７が構成されている。より具体的には、第１回転部材４８の円筒状胴部４８１の外周面には、大径歯車４２１が形成されている一方、円筒状胴部４８１の内周面には、Ｚ方向からみたときに三角形状の凹部４８２が周方向で繰り返し連続して形成されたセレーション部４８０が形成されている。   As shown in FIG. 9, the second gear 42 includes a cup-shaped first rotating member 48 in which a large-diameter gear 421 is formed and a second rotating member 49 in which a small-diameter gear 422 is formed. A torque limiter 47 is formed between the member 48 and the second rotating member 49. More specifically, a large-diameter gear 421 is formed on the outer peripheral surface of the cylindrical body 481 of the first rotating member 48, while the inner peripheral surface of the cylindrical body 481 is viewed from the Z direction. In some cases, a serration portion 480 is formed in which triangular concave portions 482 are repeatedly formed in the circumferential direction.

これに対して、第２回転部材４９は、小径歯車４２２が外周面が形成された第１筒部４９１と、第１筒部４９１にＺ方向の他方側Ｚ２で隣接する第２筒部４９２とを備え、第２筒部４９２の外周面からは、周方向の３個所から周方向の同一方向に延在する弾性変形部４９０が形成されている。また、弾性変形部４９０の先端には、第１回転部材４８の凹部４８２に食い込んだ凸部４９０が形成されている。   On the other hand, the second rotating member 49 includes a first tube portion 491 having a small-diameter gear 422 formed on the outer peripheral surface, and a second tube portion 492 adjacent to the first tube portion 491 on the other side Z2 in the Z direction. From the outer peripheral surface of the second cylindrical portion 492, there are formed elastic deformation portions 490 extending from three locations in the circumferential direction in the same direction in the circumferential direction. In addition, a convex portion 490 that bites into the concave portion 482 of the first rotating member 48 is formed at the tip of the elastic deformation portion 490.

このため、通常時は、第２回転部材４９と第１回転部材４８とは一体に回転するが、第１回転部材４８に過大な負荷が加わったとき、弾性変形部４９０は、凸部４９０が周方向で隣り合う凹部４８２に移動するだけで、第２回転部材４９の回転は、第１回転部材４８には伝達されない。   Therefore, normally, the second rotating member 49 and the first rotating member 48 rotate integrally. However, when an excessive load is applied to the first rotating member 48, the elastic deformation portion 490 has the convex portion 490. The rotation of the second rotating member 49 is not transmitted to the first rotating member 48 only by moving to the recesses 482 adjacent in the circumferential direction.

（回転検出部の構成）
図４および図７に示すように、本形態の電動開閉装置１は、出力部材３の回転位置を検出する回転検出部７を有している。本形態において、第１ケース部材５１と第３ケース部材５３との間には、４番歯車４４の小径歯車４４２に噛合して４番歯車４４の回転を回転検出部７に伝達する回転検出用従動歯車７０が設けられており、回転検出部７は、回転検出用従動歯車７０を介して検出される４番歯車４４の回転位置に基づいて、出力部材３の回転位置を検出する。 (Configuration of rotation detector)
As shown in FIGS. 4 and 7, the electric switching device 1 of the present embodiment has a rotation detection unit 7 that detects the rotation position of the output member 3. In this embodiment, between the first case member 51 and the third case member 53, meshing with the small-diameter gear 442 of the fourth gear 44 and transmitting the rotation of the fourth gear 44 to the rotation detector 7. A driven gear 70 is provided, and the rotation detection unit 7 detects the rotation position of the output member 3 based on the rotation position of the fourth gear 44 detected via the rotation detection driven gear 70.

回転検出用従動歯車７０は、円盤状の歯車部７０１と、歯車部７０１からＺ方向の一方側Ｚ１に突出した第１軸部７０３と、歯車部７０１からＺ方向の他方側Ｚ２に突出した第２軸部７０４とを有している。回転検出用従動歯車７０は、第１軸部７０３の端部が第２ケース部材５２に形成された筒部５２１ｈに回転可能に支持され、第２軸部７０４の端部が第１ケース部材５１に形成された筒部５２１ｈに回転可能に支持されている。   The rotation detecting driven gear 70 includes a disc-shaped gear portion 701, a first shaft portion 703 protruding from the gear portion 701 to one side Z1 in the Z direction, and a first shaft portion 703 protruding from the gear portion 701 to the other side Z2 in the Z direction. A biaxial portion 704. In the rotation detecting driven gear 70, the end portion of the first shaft portion 703 is rotatably supported by a cylindrical portion 521 h formed in the second case member 52, and the end portion of the second shaft portion 704 is supported by the first case member 51. It is rotatably supported by a cylindrical portion 521h formed in the above.

本形態において、回転検出部７は、第１ケース部材５１と第２ケース部材５２との間に、フレキシブル配線基板７７が接続された回路基板７１と、回路基板７１に実装されたポテンショメータ７２とを備えている。ポテンショメータ７２は、詳細な説明を省略するが、抵抗体に対して摺動するブラシを有している。   In this embodiment, the rotation detection unit 7 includes a circuit board 71 to which a flexible wiring board 77 is connected between a first case member 51 and a second case member 52, and a potentiometer 72 mounted on the circuit board 71. I have. Although the detailed description is omitted, the potentiometer 72 has a brush that slides on the resistor.

回路基板７１は、第２ケース部材５２の３つの筒部５２１ｐにねじ７１７等によって固定されており、第１ケース部材５１の板状部５１１に形成された開口部５１１ｆ（図６等を参照）をＺ方向の一方側Ｚ１で覆うように配置される。但し、回路基板７１には、開口部５１１ｆと重なる位置に開口部７１０が形成されている。このため、回転検出用従動歯車７０の第１軸部７０３の端部を、開口部５１１ｆおよびポテンショメータ７２の穴７２０を貫通させ、第２ケース部材５２の筒部５２１ｈに挿入することができる。   The circuit board 71 is fixed to the three cylindrical portions 521p of the second case member 52 by screws 717 and the like, and an opening 511f formed in the plate-like portion 511 of the first case member 51 (see FIG. 6 and the like). Is arranged so as to be covered with one side Z1 in the Z direction. However, an opening 710 is formed in the circuit board 71 at a position overlapping the opening 511f. Therefore, the end portion of the first shaft portion 703 of the rotation detecting driven gear 70 can be inserted into the cylindrical portion 521h of the second case member 52 through the opening 511f and the hole 720 of the potentiometer 72.

本形態において、第１軸部７０３は外周面の一部が平坦面になっており、断面Ｄ形状である。また、ポテンショメータ７２の穴７２０もＤ形状の開口形状を有している。従って、回転検出用従動歯車７０の第１軸部７０３の端部を、ポテンショメータ７２の穴７２０を貫通させた状態で、ポテンショメータ７２のブラシは、回転検出用従動歯車７０とともに変位する。   In this embodiment, the first shaft portion 703 has a part of the outer peripheral surface which is a flat surface and has a D-shaped cross section. The hole 720 of the potentiometer 72 also has a D-shaped opening shape. Therefore, the brush of the potentiometer 72 is displaced together with the rotation detection driven gear 70 in a state where the end of the first shaft portion 703 of the rotation detection driven gear 70 is passed through the hole 720 of the potentiometer 72.

（仕切り壁の構成）
図１０は、本発明を適用した電動開閉装置１において、回転検出部７と１番歯車４１との間の構成を示す断面図である。 (Partition wall configuration)
FIG. 10 is a cross-sectional view showing a configuration between the rotation detection unit 7 and the first gear 41 in the electric switchgear 1 to which the present invention is applied.

図１０に示すように、本形態の電動開閉装置１において、回転検出部７は、第１ケース部材５１と第２ケース部材５２との間にポテンショメータ７２を備え、かかるポテンショメータ７２は、１番歯車４１の径方向外側で１番歯車４１の大径歯車４１１と隣り合う位置に配置されている。本形態において、回転検出部７は、１番歯車４１より上方位置（Ｙ方向の他方側Ｙ２）にある。   As shown in FIG. 10, in the electric switching device 1 of the present embodiment, the rotation detector 7 includes a potentiometer 72 between the first case member 51 and the second case member 52, and the potentiometer 72 is a first gear. It is arranged at a position adjacent to the large-diameter gear 411 of the first gear 41 on the radially outer side of 41. In this embodiment, the rotation detector 7 is located above the first gear 41 (the other side Y2 in the Y direction).

１番歯車４１、２番歯車４２、３番歯車４３および４番歯車４４は、グリスが塗布されたグリス付き歯車として構成されており、それ故、回転検出部７は、グリス付き歯車の径方向外側でグリス付き歯車と隣り合う位置に配置されている。但し、減速輪列４のうち、１番歯車４１の大径歯車４１１のみがモータピニオン２４とともに第１ケース部材５１と第２ケース部材５２との間に配置され、２番歯車４２、３番歯車４３および４番歯車４４は、第１ケース部材５１と第３ケース部材５３との間に配置されている。また、回転検出部７とモータピニオン２４との間には、１番歯車４１の大径歯車４１１が介在している。このため、回転検出部７と隣り合うグリス付き歯車は、１番歯車４１の大径歯車４１１のみである。   The first gear 41, the second gear 42, the third gear 43, and the fourth gear 44 are configured as a gear with grease to which grease is applied. Therefore, the rotation detection unit 7 is arranged in the radial direction of the gear with gear. It is arranged on the outside at a position adjacent to the gear with the grease. However, only the large-diameter gear 411 of the first gear 41 in the reduction gear train 4 is disposed between the first case member 51 and the second case member 52 together with the motor pinion 24, and the second gear 42, the third gear. The 43 and fourth gears 44 are disposed between the first case member 51 and the third case member 53. A large-diameter gear 411 of the first gear 41 is interposed between the rotation detector 7 and the motor pinion 24. For this reason, the gear with the grease adjacent to the rotation detection unit 7 is only the large-diameter gear 411 of the first gear 41.

本形態では、図７および図９に示すように、１番歯車４１の大径歯車４１１と回転検出部７との間には仕切り壁９が設けられている。本形態において、仕切り壁９は、第２ケース部材５２において第１ケース部材５１が位置する側の面から第１ケース部材５１に向けて突出した板状の凸部からなる。このため、仕切り壁９は、１番歯車４１の大径歯車４１１（回転検出部７と隣り合うグリス付き歯車）と回転検出部７とに挟まれた対向領域から大径歯車４１１の中心と回転検出部７の中心とを結ぶ線に対して交差するＸ方向の一方側Ｘ１および他方側Ｘ２まで延在している。また、仕切り壁９は、Ｘ方向の両側に設けられた側板部５２３の内面（ケース内壁）まで連続して延在し、仕切り壁９の両端は、第２ケース部材５２の側板部５２３に繋がっている。ここで、大径歯車４１１と回転検出部７とに挟まれた対向領域とは、大径歯車４１１のＸ方向の一方側Ｘ１の端部と回転検出部７のＸ方向の一方側Ｘ１の端部とを結ぶ線と、大径歯車４１１のＸ方向の他方側Ｘ２の端部と回転検出部７のＸ方向の他方側Ｘ２の端部とを結ぶ線とに挟まれた領域である。本形態において、仕切り壁９を構成する凸部は、１番歯車４１の大径歯車４１１に沿うように湾曲する円弧部９０を有している。   In this embodiment, as shown in FIGS. 7 and 9, a partition wall 9 is provided between the large-diameter gear 411 of the first gear 41 and the rotation detection unit 7. In this embodiment, the partition wall 9 is composed of a plate-like convex portion that protrudes toward the first case member 51 from the surface of the second case member 52 on the side where the first case member 51 is located. For this reason, the partition wall 9 rotates around the center of the large-diameter gear 411 from a facing region sandwiched between the large-diameter gear 411 (geared gear adjacent to the rotation detection unit 7) of the first gear 41 and the rotation detection unit 7. It extends to one side X1 and the other side X2 in the X direction intersecting the line connecting the center of the detection unit 7. Further, the partition wall 9 continuously extends to the inner surface (case inner wall) of the side plate portion 523 provided on both sides in the X direction, and both ends of the partition wall 9 are connected to the side plate portion 523 of the second case member 52. ing. Here, the opposing region sandwiched between the large-diameter gear 411 and the rotation detection unit 7 is the end of one side X1 in the X direction of the large-diameter gear 411 and the end of one side X1 in the X direction of the rotation detection unit 7. This is a region sandwiched between a line connecting the two portions and a line connecting the end portion on the other side X2 in the X direction of the large-diameter gear 411 and the end portion on the other side X2 in the X direction of the rotation detection unit 7. In this embodiment, the convex portion constituting the partition wall 9 has an arcuate portion 90 that curves so as to follow the large-diameter gear 411 of the first gear 41.

仕切り壁９は、第２ケース部材５２の筒部５２１ｈと繋がっており、仕切り壁９と筒部５２１ｈと繋がっている部分は、回路基板７１の角部分を配置するための切り欠き９１になっている。このため、仕切り壁９は、筒部５２１ｈと繋がっている部分が切り欠き９１の深さ分だけ、低くなっているが、それでも、図１０に示すように、回転検出部７を１番歯車４１の大径歯車４１１から覆った状態にある。   The partition wall 9 is connected to the cylindrical portion 521 h of the second case member 52, and the portion connected to the partition wall 9 and the cylindrical portion 521 h is a notch 91 for arranging the corner portion of the circuit board 71. Yes. For this reason, the part of the partition wall 9 that is connected to the cylindrical part 521h is lowered by the depth of the notch 91. However, as shown in FIG. The large diameter gear 411 is covered.

（電動開閉装置１の製造工程）
本形態の電動開閉装置１の製造工程においては、まず、第１ケース部材５１と第３ケース部材５３との間に、出力部材３と、減速輪列４に用いた複数の歯車のうち、回転検出用従動歯車７０より出力側の歯車とを配置した状態で、回転検出用従動歯車７０の角度位置を調整する。本形態では、減速輪列４において回転検出用従動歯車７０より出力側の歯車は４番歯車４４だけであるため、第１ケース部材５１と第３ケース部材５３との間に４番歯車４４を配置した状態で回転検出用従動歯車７０の角度位置を調整する。なお、本形態では、２番歯車４２、３番歯車４３、およびモータ２も、第１ケース部材５１と第３ケース部材５３との間に配置し、１番歯車４１のみを配置する前の状態で回転検出用従動歯車７０の角度位置を調整する。 (Manufacturing process of the electric switchgear 1)
In the manufacturing process of the electric switchgear 1 of the present embodiment, first, between the first case member 51 and the third case member 53, among the plurality of gears used for the output member 3 and the reduction gear train 4, rotation is performed. The angular position of the rotation detection driven gear 70 is adjusted in a state where the output side gear is arranged with respect to the detection driven gear 70. In the present embodiment, the fourth gear 44 is the only gear on the output side of the rotation detecting driven gear 70 in the reduction gear train 4, so that the fourth gear 44 is interposed between the first case member 51 and the third case member 53. The angular position of the rotation detecting driven gear 70 is adjusted in the arranged state. In this embodiment, the second gear 42, the third gear 43, and the motor 2 are also disposed between the first case member 51 and the third case member 53, and the state before only the first gear 41 is disposed. The angular position of the rotation detecting driven gear 70 is adjusted.

より具体的には、出力部材３の凸部３２７がストッパ部５３７に当接した停止状態で、４番歯車４４に回転検出用従動歯車７０を噛合させる。その際、回転検出用従動歯車７０には、この状態で４番歯車４４に噛合すべき歯を示すマーク（図示せず）が付されている。また、回転検出用従動歯車７０の角度位置とポテンショメータ７２の角度位置は、回転検出用従動歯車７０の第１軸部７０３のＤ形状、およびポテンショメータ７２の穴７２０のＤ形状によって定まっている。従って、出力部材３の凸部３２７がストッパ部５３７に当接した停止状態（基準状態）で、４番歯車４４に回転検出用従動歯車７０の所定の歯を噛合させれば、ポテンショメータ７２の角度位置を出力部材３の基準状態に合わせることができる。   More specifically, the rotation detecting driven gear 70 is engaged with the fourth gear 44 in a stopped state in which the convex portion 327 of the output member 3 is in contact with the stopper portion 537. At this time, the rotation detection driven gear 70 is provided with a mark (not shown) indicating a tooth to be engaged with the fourth gear 44 in this state. The angular position of the rotation detecting driven gear 70 and the angular position of the potentiometer 72 are determined by the D shape of the first shaft portion 703 of the rotation detecting driven gear 70 and the D shape of the hole 720 of the potentiometer 72. Accordingly, when the predetermined tooth of the rotation detecting driven gear 70 is engaged with the fourth gear 44 in the stopped state (reference state) in which the convex portion 327 of the output member 3 is in contact with the stopper portion 537, the angle of the potentiometer 72 is set. The position can be adjusted to the reference state of the output member 3.

（本形態の主な効果）
以上説明したように、本形態の電動開閉装置１では、ケース体５のＺ方向の一方側Ｚ１の面には、ケース体５を機器に固定するための複数の第１ねじ１７１、１７２が各々、出力部材３の回転中心軸線Ｌと平行な方向から止められる第１ねじ止め部５１１ｘ、５１１ｙと、回転中心軸線Ｌに対して直交する第１取り付け面５５０とが設けられている。このため、図３（ａ）に示すように、第１ねじ１７１、１７２を止めた際、第１ねじ１７１、１７２の締め込み量が変動しても、ケース体５の姿勢は、回転中心軸線Ｌに対して直交する第１取り付け面５５０によって規定される。しかも、第１ねじ止め部５１１ｘ、５１１ｙのＺ方向の一方側Ｚ１の面は、第１取り付け面５５０の一部を構成しているため、第１ねじ１７１、１７２の締め込み量が変動しても、ケース体５の姿勢は、回転中心軸線Ｌに対して直交する第１取り付け面５５０によって確実に規定される。従って、第１ねじ１７１、１７２の締め込み量が変動しても、ケース体５の姿勢、すなわち、出力部材３の回転中心軸線Ｌが傾くことを抑制することができる。 (Main effects of this form)
As described above, in the electric opening and closing device 1 of the present embodiment, the plurality of first screws 171 and 172 for fixing the case body 5 to the device are respectively provided on the surface of the case body 5 on one side Z1 in the Z direction. First screwing portions 511x and 511y that are fixed from a direction parallel to the rotation center axis L of the output member 3 and a first attachment surface 550 that is orthogonal to the rotation center axis L are provided. For this reason, as shown in FIG. 3A, when the first screws 171 and 172 are stopped, the posture of the case body 5 does not change even if the tightening amount of the first screws 171 and 172 varies. Defined by a first mounting surface 550 orthogonal to L. Moreover, since the surface on the one side Z1 in the Z direction of the first screwing portions 511x and 511y constitutes a part of the first mounting surface 550, the tightening amount of the first screws 171 and 172 varies. However, the posture of the case body 5 is reliably defined by the first attachment surface 550 that is orthogonal to the rotation center axis L. Therefore, even if the tightening amounts of the first screws 171 and 172 vary, the posture of the case body 5, that is, the rotation center axis L of the output member 3 can be suppressed from being inclined.

ここで、２つの第１ねじ止め部５１１ｘ、５１１ｙの長さ方向（Ｙ方向）における距離は、出力部材３に近い方の第１ねじ止め部５１１ｘと出力部材３との長さ方向（Ｙ方向）における距離より長い。このため、２つの第１ねじ止め部５１１ｘ、５１１ｙが十分に離間しているので、ケース体５０を適正な姿勢に確実に固定することができる。   Here, the distance in the length direction (Y direction) of the two first screwing portions 511x and 511y is the length direction (Y direction) between the first screwing portion 511x closer to the output member 3 and the output member 3. ) Longer than the distance. For this reason, since the two first screwing portions 511x and 511y are sufficiently separated from each other, the case body 50 can be reliably fixed in an appropriate posture.

さらに、ケース体５のＺ方向の他方側Ｚ２の面には、ケース体５を機器に固定するための複数の第２ねじ１８１、１８２が各々、出力部材３の回転中心軸線Ｌと平行な方向から止められる第２ねじ止め部５３１ｘ、５３１ｙと、回転中心軸線Ｌに対して直交する第２取り付け面５６０とが設けられている。このため、図３（ｂ）に示すように、第２ねじ１８１、１８２を止めた際、第２ねじ１８１、１８２の締め込み量が変動しても、ケース体５の姿勢は、回転中心軸線Ｌに対して直交する第２取り付け面５６０によって規定される。しかも、第２ねじ止め部５３１ｘ、５３１ｙのＺ方向の他方側Ｚ２の面は、第２取り付け面５６０の一部を構成しているため、第２ねじ１８１、１８２の締め込み量が変動しても、ケース体５の姿勢は、回転中心軸線Ｌに対して直交する第２取り付け面５６０によって確実に規定される。従って、第２ねじ１８１、１８２の締め込み量が変動しても、ケース体５の姿勢、すなわち、出力部材３の回転中心軸線Ｌが傾くことを抑制することができる。   Further, on the surface of the other side Z2 of the case body 5 in the Z direction, a plurality of second screws 181 and 182 for fixing the case body 5 to the device are respectively parallel to the rotation center axis L of the output member 3 The second screwing portions 531x and 531y that are fastened from the second side and the second attachment surface 560 that is orthogonal to the rotation center axis L are provided. Therefore, as shown in FIG. 3B, when the second screws 181 and 182 are stopped, even if the tightening amounts of the second screws 181 and 182 vary, the posture of the case body 5 remains at the rotation center axis. Defined by a second mounting surface 560 orthogonal to L. In addition, since the surface on the other side Z2 in the Z direction of the second screw fastening portions 531x and 531y constitutes a part of the second mounting surface 560, the tightening amount of the second screws 181 and 182 varies. However, the posture of the case body 5 is reliably defined by the second mounting surface 560 orthogonal to the rotation center axis L. Therefore, even if the tightening amounts of the second screws 181 and 182 vary, the posture of the case body 5, that is, the rotation center axis L of the output member 3 can be suppressed from being inclined.

ここで、２つの第２ねじ止め部５３１ｘ、５３１ｙの長さ方向（Ｙ方向）における距離は、出力部材３に近い方の第２ねじ止め部５３１ｘと出力部材３との長さ方向（Ｙ方向）における距離より長い。このため、２つの第２ねじ止め部５３１ｘ、５３１ｙが十分に離間しているので、ケース体５０を適正な姿勢に確実に固定することができる。   Here, the distance in the length direction (Y direction) of the two second screwing portions 531x and 531y is the length direction (Y direction) between the second screwing portion 531x closer to the output member 3 and the output member 3. ) Longer than the distance. For this reason, since the two second screwing portions 531x and 531y are sufficiently separated from each other, the case body 50 can be reliably fixed in an appropriate posture.

また、第１ねじ止め部５１１ｘ、５１１ｙ、および第２ねじ止め部５３１ｘ、５３１ｙは各々、出力部材３を回転可能に支持する第１ケース部材５１および第３ケース部材５３に形成されている。このため、第１ねじ止め部５１１ｘ、５１１ｙによってケース体５を固定した場合、および第２ねじ止め部５３１ｘ、５３１ｙによってケース体５を固定した場合のいずれにおいても、出力部材３は適正な姿勢で配置される。   The first screwing portions 511x and 511y and the second screwing portions 531x and 531y are respectively formed on the first case member 51 and the third case member 53 that rotatably support the output member 3. For this reason, the output member 3 is in an appropriate posture both when the case body 5 is fixed by the first screwing portions 511x and 511y and when the case body 5 is fixed by the second screwing portions 531x and 531y. Be placed.

また、第２ケース部材５２には大きな荷重が加わらないので、第２ケース部材５２は、大きな強度を有する必要がない。それ故、第２ケース部材５２については、薄く構成することができるとともに、安価な汎用樹脂で構成することができる。   In addition, since a large load is not applied to the second case member 52, the second case member 52 does not need to have a large strength. Therefore, the second case member 52 can be made thin and can be made of inexpensive general-purpose resin.

また、第１ねじ止め部５１１ｘ、５１１ｙは、第１ケース部材５１から第２ケース部材５２の開口部５２１ｘ、５２１ｙに向けて突出した筒部によって構成されているため、第１ねじ止め部５１１ｘ、５１１ｙを第２ケース部材５２からＺ方向の一方側Ｚ１に向けて容易に露出させることができる。しかも、第１ねじ止め部５１１ｘ、５１１ｙは、開口部５２１ｘ、５２１ｙに嵌合して、第１ケース部材５１と第２ケース部材５２とをＸ方向およびＹ方向で位置決めしている。このため、第１ケース部材５１と第２ケース部材５２とによって直接、回転可能に支持されている回転検出用従動歯車７０を適正な姿勢で支持することができる。   In addition, since the first screwing portions 511x and 511y are constituted by cylindrical portions protruding from the first case member 51 toward the openings 521x and 521y of the second case member 52, the first screwing portions 511x, 511y can be easily exposed from the second case member 52 toward the one side Z1 in the Z direction. Moreover, the first screwing portions 511x and 511y are fitted in the openings 521x and 521y to position the first case member 51 and the second case member 52 in the X direction and the Y direction. For this reason, the rotation detecting driven gear 70 that is rotatably supported directly by the first case member 51 and the second case member 52 can be supported in an appropriate posture.

また、本形態の電動開閉装置１において、減速輪列４に用いた歯車にはグリスが塗布されているが、回転検出部７が径方向外側で隣り合う１番歯車４１の大径歯車４１１と回転検出部７との間には仕切り壁９が設けられている。このため、グリスが回転検出部７に付着しにくいので、グリスの付着に起因する回転検出部７での誤検出等の不具合の発生を抑制することができる。   Further, in the electric opening and closing device 1 of the present embodiment, grease is applied to the gear used for the reduction gear train 4, but the rotation detecting unit 7 is connected to the large-diameter gear 411 of the first gear 41 adjacent to the outside in the radial direction. A partition wall 9 is provided between the rotation detector 7. For this reason, since it is difficult for grease to adhere to the rotation detection unit 7, it is possible to suppress occurrence of problems such as erroneous detection in the rotation detection unit 7 due to adhesion of grease.

特に、モータピニオン２４と噛合する１番歯車４１は、回転速度が高いため、遠心力によってグリスが飛散しやすいが、本形態によれば、かかる場合でも、回転検出部７へのグリスの付着を抑制することができる。また、回転検出部７と１番歯車４１の大径歯車４１１とは、第１ケース部材５１と第２ケース部材５２とによって区画された空間内に位置するため、１番歯車４１から飛散したグリスが回転検出部７に付着しやすいが、本形態によれば、かかる場合でも、仕切り壁９によって回転検出部７へのグリスの付着を抑制することができる。また、仕切り壁９は、１番歯車４１の大径歯車４１１（回転検出部７と隣り合うグリス付き歯車）と回転検出部７とに挟まれた対向領域からＸ方向の一方側Ｘ１およびＸ方向の他方側Ｘ２まで延在し、Ｘ方向の両側に設けられた側板部５２３の内面（ケース内壁）まで連続して延在している。このため、グリスが回転検出部７に付着するのを効果的に抑制することができる。また、仕切り壁９は、１番歯車４１の大径歯車４１１（回転検出部７と隣り合うグリス付き歯車）と回転検出部７とに挟まれた対向領域からＸ方向の一方側Ｘ１およびＸ方向の他方側Ｘ２まで延在し、Ｘ方向の両側に設けられた側板部５２３の内面（ケース内壁）まで連続して延在している。このため、グリスが回転検出部７に付着するのを効果的に抑制することができる。   In particular, since the first gear 41 that meshes with the motor pinion 24 has a high rotational speed, grease is likely to be scattered due to centrifugal force. However, according to this embodiment, the grease is attached to the rotation detection unit 7 even in such a case. Can be suppressed. Further, since the rotation detection unit 7 and the large-diameter gear 411 of the first gear 41 are located in a space defined by the first case member 51 and the second case member 52, the grease scattered from the first gear 41 is used. However, according to the present embodiment, even in such a case, the partition wall 9 can suppress the adhesion of grease to the rotation detection unit 7. Further, the partition wall 9 is arranged on one side X1 and X direction from the facing region sandwiched between the large-diameter gear 411 (gear with gear adjacent to the rotation detecting unit 7) and the rotation detecting unit 7 of the first gear 41. It extends to the other side X2, and extends continuously to the inner surface (case inner wall) of the side plate portion 523 provided on both sides in the X direction. For this reason, it is possible to effectively suppress the grease from adhering to the rotation detection unit 7. Further, the partition wall 9 is arranged on one side X1 and X direction from the facing region sandwiched between the large-diameter gear 411 (gear with gear adjacent to the rotation detecting unit 7) and the rotation detecting unit 7 of the first gear 41. It extends to the other side X2, and extends continuously to the inner surface (case inner wall) of the side plate portion 523 provided on both sides in the X direction. For this reason, it is possible to effectively suppress the grease from adhering to the rotation detection unit 7.

また、仕切り壁９は、第２ケース部材５２において第１ケース部材５１と対向する面に形成された凸部からなるため、仕切り壁９を構成する部材を別途、追加する必要がないという利点がある。ここで、仕切り壁９は、第１ケース部材５１において第２ケース部材５２と対向する面に形成された凸部によって構成してもよい。但し、本形態では、大径歯車４１１が回転検出部７の回路基板７１に対してＺ軸方向の一方側Ｚ１（第２ケース部材５２の側）で重なった構造とすることにより、ケース体５の薄型化を図っているため、仕切り壁９は、第２ケース部材５２において第１ケース部材５１と対向する面に形成した方が好ましい。   Moreover, since the partition wall 9 consists of the convex part formed in the surface facing the 1st case member 51 in the 2nd case member 52, there is an advantage that it is not necessary to add the member which comprises the partition wall 9 separately. is there. Here, the partition wall 9 may be configured by a convex portion formed on the surface of the first case member 51 facing the second case member 52. However, in this embodiment, the case body 5 has a structure in which the large-diameter gear 411 overlaps the circuit board 71 of the rotation detection unit 7 on one side Z1 in the Z-axis direction (second case member 52 side). Therefore, the partition wall 9 is preferably formed on the surface of the second case member 52 that faces the first case member 51.

また、回転検出部７は、仕切り壁９や１番歯車４１の大径歯車４１１（グリス付き歯車）より重力方向を基準として上方位置に配置されているため、グリスが自重で回転検出部７に付着することを防止することができる。   Further, since the rotation detection unit 7 is arranged at a position higher than the partition wall 9 and the large-diameter gear 411 (gear with gear) of the first gear 41 with respect to the direction of gravity, the grease is applied to the rotation detection unit 7 by its own weight. Adhesion can be prevented.

また、本形態において、回転検出部７はポテンショメータ７２を備えているため、ポテンショメータ７２の接点に多量にグリスが付着すると、致命的な不具合となるため、仕切り壁９を設けてグリスの付着を抑制した場合の効果が顕著である。   In this embodiment, since the rotation detector 7 includes the potentiometer 72, if a large amount of grease adheres to the contact point of the potentiometer 72, it becomes a fatal problem, so the partition wall 9 is provided to suppress the adhesion of grease. The effect is remarkable.

（他の実施の形態）
上記実施の形態では、第１ねじ１７１、１７２が各々、出力部材３の回転中心軸線Ｌと平行な方向から止められる構成であったが、第１ねじ１７１、１７２が各々、出力部材３の回転中心軸線Ｌに対して斜めの方向から止められる場合でも、回転中心軸線Ｌに対して直交する第１取り付け面５５０を設けておけば、ケース体５を適正な姿勢で固定することができる。同様に、第２ねじ１８１、１８２が各々、出力部材３の回転中心軸線Ｌに対して斜めの方向から止められる場合でも、回転中心軸線Ｌに対して直交する第２取り付け面５６０を設けておけば、ケース体５を適正な姿勢で固定することができる。 (Other embodiments)
In the above embodiment, the first screws 171 and 172 are each configured to be stopped from a direction parallel to the rotation center axis L of the output member 3, but the first screws 171 and 172 are each configured to rotate the output member 3. Even in the case where the first attachment surface 550 orthogonal to the rotation center axis L is provided, the case body 5 can be fixed in an appropriate posture even when it is stopped from an oblique direction with respect to the center axis L. Similarly, even when the second screws 181 and 182 are each stopped from an oblique direction with respect to the rotation center axis L of the output member 3, a second mounting surface 560 orthogonal to the rotation center axis L can be provided. In this case, the case body 5 can be fixed in an appropriate posture.

上記実施の形態では、１番歯車４１、２番歯車４２、３番歯車４３および４番歯車４４が支軸を介してケース体５に回転可能に支持されている構成であったが、１番歯車４１、２番歯車４２、３番歯車４３および４番歯車４４の一部あるいは全てがケース体５に回転可能に支持された回転軸を備えている構成であってもよい。   In the above embodiment, the first gear 41, the second gear 42, the third gear 43, and the fourth gear 44 are rotatably supported by the case body 5 via the support shaft. A configuration may be adopted in which some or all of the gears 41, 2, 42, 3, 43 and 44 are provided with a rotating shaft that is rotatably supported by the case body 5.

なお、上記の例では、電動開閉装置１が便座や便蓋を駆動しているが、洗濯機の洗濯槽への洗濯物投入口を開閉する蓋体を駆動する構成であってもよい。   In the above example, the electric opening / closing device 1 drives the toilet seat and the toilet lid. However, the electric opening / closing device 1 may be configured to drive the lid that opens and closes the laundry input port to the washing tub of the washing machine.

１・・電動開閉装置
２・・モータ
３・・出力部材
４・・減速輪列
５・・ケース体
７・・回転検出部
９・・仕切り壁
２４・・モータピニオン
４１・・１番歯車
４２・・２番歯車
４３・・３番歯車
４４・・４番歯車
５１・・第１ケース部材
５２・・第２ケース部材
５３・・第３ケース部材
７０・・回転検出用従動歯車
７２・・ポテンショメータ
１７１、１７２・・第１ねじ
１８１、１８２・・第２ねじ
４１１・・大径歯車（グリス付き歯車）
５１１ｘ、５１１ｙ・・第１ねじ止め部
５３１ｘ、５３１ｙ・・第２ねじ止め部
５３７・・ストッパ部
５５０・・第１取り付け面
５６０・・第２取り付け面
Ｌ・・出力部材の回転中心軸線 1 .. Electric opening and closing device 2 .. Motor 3.. Output member 4. Reduction gear train 5. Case body 7. Rotation detector 9. Partition wall 24. Motor pinion 41. · Second gear 43 · · third gear 44 · · fourth gear 51 · · first case member 52 · · second case member 53 · · third case member 70 · · rotation detection driven gear 72 · · potentiometer 171 , 172 .. First screw 181, 182 .. Second screw 411 .. Large diameter gear (gear with gear)
511x, 511y ··· first screwing portion 531x, 531y · · second screwing portion 537 · · stopper portion 550 · · first attachment surface 560 · · second attachment surface L · · rotation axis of output member

Claims (8)

モータ軸にモータピニオンが設けられたモータと、
出力部材と、
前記モータピニオンと噛合する大径歯車および前記大径歯車より小径の小径歯車を同軸上に備えた１番歯車を含み、前記モータの回転を減速して前記出力部材に伝達する減速輪列と、
前記減速輪列に用いた複数の歯車のうち、グリス付き歯車の径方向外側で当該グリス付き歯車と隣り合う位置に配置され、前記出力部材の回転位置を検出する回転検出部と、
前記グリス付き歯車と前記回転検出部との間を仕切る仕切り壁と、
前記モータの胴部の出力側端部が固定された第１ケース部材と、
該第１ケース部材の一方面側に対向する第２ケース部材と、
前記第１ケース部材の他方面側に対向する第３ケース部材と、
を有し、
前記第１ケース部材と前記第２ケース部材との間に、前記モータ軸、前記モータピニオン、前記第１歯車の前記大径歯車、および前記回転検出部が配置され、
前記第２ケース部材と前記第３ケース部材との間には、前記複数の歯車のうち、前記１番歯車を除く全ての歯車が配置され、
前記グリス付き歯車は、前記１番歯車の前記大径歯車であって、
前記１番歯車の前記大径歯車と前記回転検出部との間が前記仕切り壁によって仕切られていることを特徴とする電動開閉装置。 A motor with a motor pinion on the motor shaft ;
An output member;
A deceleration gear train which transmits the large diameter gear and the large-diameter gear than the diameter of the small diameter gear of the motor pinion meshing comprise one toothed wheel having coaxially to said output member by decelerating the rotation of said motor,
Among a plurality of gears used in the reduction gear train, a rotation detection unit that is disposed at a position adjacent to the greased gear on the radially outer side of the greased gear, and detects the rotational position of the output member;
A partition wall that partitions between the grease gear and the rotation detection unit;
A first case member to which an output side end of the body of the motor is fixed;
A second case member facing one side of the first case member;
A third case member facing the other side of the first case member;
Have
Between the first case member and the second case member, the motor shaft, the motor pinion, the large-diameter gear of the first gear, and the rotation detection unit are arranged,
Between the second case member and the third case member, all the gears except the first gear among the plurality of gears are arranged,
The greased gear is the large-diameter gear of the first gear,
The electric opening and closing device characterized in that the large-diameter gear of the first gear and the rotation detector are partitioned by the partition wall . 前記第１ケース部材または前記第３ケース部材に設けられているとともに前記出力部材の停止位置を規定するストッパ部と、
前記複数の歯車のうちのいずれかの歯車と噛合して当該歯車の回転を前記回転検出部に伝達する回転検出用従動歯車と、
を有し、
前記減速輪列において前記回転検出用従動歯車より出力側の歯車は、前記第１ケース部材と前記第３ケース部材とにより直接または支軸を介して回転可能に支持されていることを特徴とする請求項１に記載の電動開閉装置。 A stopper provided on the first case member or the third case member and defining a stop position of the output member;
A rotation detecting driven gear that meshes with any one of the plurality of gears and transmits the rotation of the gear to the rotation detecting unit;
Have
A gear on the output side of the rotation detecting driven gear in the reduction gear train is supported by the first case member and the third case member so as to be rotatable directly or via a support shaft. The electric switchgear according to claim 1. 前記仕切り壁は、前記第１ケース部材において第２ケース部材と対向する面、および前
記第２ケース部材において前記第１ケース部材と対向する面の一方に形成された凸部からなることを特徴とする請求項２に記載の電動開閉装置。 The partition wall includes a surface facing the second case member in the first case member, and a front
3. The electric switchgear according to claim 2, comprising a convex portion formed on one side of the second case member facing the first case member . 前記仕切り壁は、前記第２ケース部材において前記第１ケース部材と対向する面に形成された凸部からなることを特徴とする請求項３に記載の電動開閉装置。 4. The electric switchgear according to claim 3 , wherein the partition wall is formed of a convex portion formed on a surface of the second case member that faces the first case member . 5. 前記仕切り壁は、前記グリス付き歯車と前記回転検出部とに挟まれた対向領域から前記グリス付き歯車と前記回転検出部の中心とを結ぶ線に対して交差する方向の一方側および他方側に延在していることを特徴とする請求項１乃至４の何れか一項に記載の電動開閉装置。 The partition wall is formed on one side and the other side in a direction intersecting a line connecting the gear with grease and the center of the rotation detection unit from a facing region sandwiched between the gear with grease and the rotation detection unit. The electric switchgear according to any one of claims 1 to 4, wherein the electric switchgear is extended . 前記仕切り壁は、前記方向に設けられたケース内壁まで連続して延在していることを特徴とする請求項５に記載の電動開閉装置。 6. The electric switchgear according to claim 5, wherein the partition wall continuously extends to an inner wall of the case provided in the direction . 前記回転検出部は、前記仕切り壁および前記グリス付き歯車より上方位置に配置されていることを特徴とする請求項１乃至６の何れか一項に記載の電動開閉装置。 The electric switchgear according to any one of claims 1 to 6, wherein the rotation detection unit is disposed above the partition wall and the gear with the grease . 前記回転検出部は、抵抗体に対してブラシが摺動するポテンショメータを備えていることを特徴とする請求項１乃至７の何れか一項に記載の電動開閉装置。 The electric switchgear according to any one of claims 1 to 7, wherein the rotation detection unit includes a potentiometer in which a brush slides with respect to a resistor .
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