JP6340192B2 - Substrate positioning structure - Google Patents

Substrate positioning structure Download PDF

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Publication number
JP6340192B2
JP6340192B2 JP2013252655A JP2013252655A JP6340192B2 JP 6340192 B2 JP6340192 B2 JP 6340192B2 JP 2013252655 A JP2013252655 A JP 2013252655A JP 2013252655 A JP2013252655 A JP 2013252655A JP 6340192 B2 JP6340192 B2 JP 6340192B2
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substrate
case member
gear
cylindrical portion
support member
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JP2015109399A (en
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坂田 哲也
哲也 坂田
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Nidec Sankyo Corp
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Nidec Sankyo Corp
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  • Mounting Of Printed Circuit Boards And The Like (AREA)

Description

本発明は、第1支持部材と第2支持部材との間での基板の位置決め構造に関するものである。   The present invention relates to a substrate positioning structure between a first support member and a second support member.

各種機器では、第1支持部材と第2支持部材との間で基板を基板の厚さ方向および基板の面内方向で位置決めした構造が多用されている。例えば、特許文献1に記載の機器では、第1ケース部と第2ケース部とを周縁部分で突起と位置決め孔とによって位置決めするとともに、第1ケース部の内壁に設けたL字状の第1リブと、第2ケース部の内壁に設けた第2リブとの間に基板で挟んで基板の厚さ方向に位置決めする構造が採用されている。かかる構造において、基板の端部を第1リブに当接させれば、基板を面内方向でも位置決めすることができる。   In various devices, a structure in which the substrate is positioned between the first support member and the second support member in the thickness direction of the substrate and the in-plane direction of the substrate is frequently used. For example, in the device described in Patent Document 1, the first case portion and the second case portion are positioned by the protrusion and the positioning hole at the peripheral portion, and the L-shaped first provided on the inner wall of the first case portion. A structure is employed in which the rib is sandwiched between the rib and the second rib provided on the inner wall of the second case portion and positioned in the thickness direction of the substrate. In such a structure, the substrate can be positioned even in the in-plane direction by bringing the end of the substrate into contact with the first rib.

特開平8−316645号公報JP-A-8-316645

しかしながら、特許文献1の構成では、面内方向では、第1リブが設けられている側に寄せることにより位置決めできるが、片側での位置決めであるため、基板を面内方向の所定位置に正確に位置決めすることが困難である。また、基板を製作する際に切断された部分(端部)が位置決め基準になるため、面内方向での正確な位置決めが困難である。さらに、基板の位置決めと、第1ケース部と第2ケース部との位置決めを別の箇所で行っているため、第1ケース部および第2ケース部の構造が複雑になってしまうという問題点もある。   However, in the configuration of Patent Document 1, in the in-plane direction, positioning can be performed by approaching the side where the first rib is provided, but since the positioning is performed on one side, the substrate is accurately positioned at a predetermined position in the in-plane direction. It is difficult to position. In addition, since a portion (end) cut when the substrate is manufactured serves as a positioning reference, accurate positioning in the in-plane direction is difficult. Furthermore, since the positioning of the substrate and the positioning of the first case portion and the second case portion are performed at different locations, the structure of the first case portion and the second case portion becomes complicated. is there.

以上の問題点に鑑みて、本発明の課題は、比較的簡素な構成で2つの支持部材の間で基板を厚さ方向および面内方向で確実に位置決めすることができる基板の位置決め構造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 a substrate positioning structure that can reliably position a substrate between two support members in a thickness direction and an in-plane direction with a relatively simple configuration. There is to do.

上記課題を解決するために、本発明を適用した基板の位置決め構造は、第1支持部材に対して第2支持部材の基板押さえ部が、少なくとも一方面に導体パターンが形成された基板を押し付けることにより当該基板の位置決めを行う基板の位置決め構造であって、前記基板に貫通穴が形成され、前記第1支持部材には前記貫通穴を貫通する位置決め突起が設けられ、前記基板押さえ部は、前記位置決め突起の先端側が嵌った筒部と、該筒部の先端部で前記基板に当接する基板当接部と、を有し、前記基板当接部は、前記筒部の先端部から前記基板に向けて突出した突部からなり、前記基板押さえ部、前記貫通穴および前記位置決め突起は各々、3ヶ所に設けられており、前記3ヶ所の各々で前記筒部の先端部に設けられた前記突部を結んだ範囲は、前記3ヶ所に設けられた前記筒部の中心を結んだ範囲より大きいことを特徴とする。 In order to solve the above-described problem, in the substrate positioning structure to which the present invention is applied, the substrate pressing portion of the second support member presses the substrate having the conductor pattern formed on at least one surface against the first support member. A positioning structure of the substrate for positioning the substrate, wherein a through hole is formed in the substrate, a positioning protrusion penetrating the through hole is provided in the first support member, and the substrate pressing portion includes: A cylindrical portion fitted to a distal end side of the positioning protrusion; and a substrate abutting portion that abuts the substrate at the distal end portion of the cylindrical portion, and the substrate abutting portion extends from the distal end portion of the cylindrical portion to the substrate. The substrate pressing portion, the through hole, and the positioning projection are each provided at three locations, and the projection provided at the tip of the cylindrical portion at each of the three locations. Range of connecting parts , Wherein the range is greater than that connecting the centers of the cylindrical portion provided in the three places.

本発明では、第1支持部材に対して第2支持部材の基板押さえ部が基板を押し付けているため、基板を基板の厚さ方向に確実に位置決めすることができる。また、第1支持部材の位置決め突起は、基板の貫通穴を貫通し、位置決め突起の先端部は、基板押さえ部の筒部に嵌っているため、基板は面内方向において第1支持部材の所定位置および第2支持部材の所定位置に確実に位置決めされる。また、位置決め突起と基板の貫通穴とを利用しているため、基板は、貫通穴を基準に位置決めされる。従って、基板を面内方向で精度よく位置決めすることができる。さらに、第1支持部材の位置決め突起が第2支持部材の筒部に嵌っているので、基板の位置決め個所を利用して第1支持部材と第2支持部材との位置
決めを行うこともできる。それ故、比較的簡素な構成で、第1支持部材と第2支持部材との間で基板を厚さ方向および面内方向で確実に位置決めすることができる。
In the present invention, since the substrate pressing portion of the second support member presses the substrate against the first support member, the substrate can be reliably positioned in the thickness direction of the substrate. In addition, since the positioning protrusion of the first support member penetrates the through hole of the substrate and the tip end portion of the positioning protrusion is fitted to the cylindrical portion of the substrate pressing portion, the substrate is in the in-plane direction and the predetermined position of the first support member. The position and the predetermined position of the second support member are surely positioned. Moreover, since the positioning protrusion and the through hole of the substrate are used, the substrate is positioned with reference to the through hole. Therefore, the substrate can be accurately positioned in the in-plane direction. Furthermore, since the positioning protrusion of the first support member is fitted in the cylindrical portion of the second support member, the first support member and the second support member can be positioned using the positioning portion of the substrate. Therefore, the substrate can be reliably positioned in the thickness direction and the in-plane direction between the first support member and the second support member with a relatively simple configuration.

本発明において、前記基板当接部は、前記筒部の先端部から前記基板に向けて突出した突部からなる。このため、基板押さえ部と基板とが接する個所を限定することができるので、基板を基板の厚さ方向に確実に位置決めすることができる。また、前記基板押さえ部、前記貫通穴および前記位置決め突起が複数組設けられているため、第1支持部材と第2支持部材との間で基板を厚さ方向および面内方向で確実に位置決めすることができる。 In this invention, the said board | substrate contact part consists of the protrusion protruded toward the said board | substrate from the front-end | tip part of the said cylinder part . For this reason , since the part which a board | substrate holding | suppressing part and a board | substrate contact can be limited, a board | substrate can be positioned reliably in the thickness direction of a board | substrate. In addition, since a plurality of sets of the substrate pressing portion, the through hole, and the positioning protrusion are provided, the substrate is reliably positioned in the thickness direction and the in-plane direction between the first support member and the second support member. be able to.

本発明において、前記基板当接部は、前記基板に当接する先端部分が凸曲面になっていることが好ましい。かかる構成によれば、基板押さえ部と基板とが接する個所をより限定することができるので、基板を基板の厚さ方向に確実に位置決めすることができる。また、基板当接部が基板を押さえた際、基板当接部がわずかに変形した状態とすることができるので、第1支持部材と第2支持部材との間に基板を確実に位置決めすることができる。   In this invention, it is preferable that the said board | substrate contact part is a convex curve in the front-end | tip part contact | abutted to the said board | substrate. According to such a configuration, the portion where the substrate pressing portion and the substrate are in contact with each other can be further limited, so that the substrate can be reliably positioned in the thickness direction of the substrate. Further, since the substrate contact portion can be slightly deformed when the substrate contact portion presses the substrate, the substrate is surely positioned between the first support member and the second support member. Can do.

本発明において、前記筒部の軸線方向からみたとき、前記基板当接部の面積は、前記筒部の面積の1/2以下であることが好ましい。かかる構成によれば、基板押さえ部と基板とが接する個所をより限定することができるので、基板を基板の厚さ方向に確実に位置決めすることができる。また、基板当接部が基板を押さえた際、基板当接部がわずかに変形した状態とすることができるので、第1支持部材と第2支持部材との間に基板を確実に位置決めすることができる。   In the present invention, it is preferable that the area of the substrate contact portion is ½ or less of the area of the cylindrical portion when viewed from the axial direction of the cylindrical portion. According to such a configuration, the portion where the substrate pressing portion and the substrate are in contact with each other can be further limited, so that the substrate can be reliably positioned in the thickness direction of the substrate. Further, since the substrate contact portion can be slightly deformed when the substrate contact portion presses the substrate, the substrate is surely positioned between the first support member and the second support member. Can do.

本発明において、前記基板当接部と前記基板の端部との距離は、前記導体パターンにおいてランドを除く部分と前記基板の端部との距離より短いことが好ましい。かかる構成によれば、基板において端部から離間した領域を、導体パターンを効率よく纏めて設ける領域として有効に利用することができる。   In the present invention, it is preferable that the distance between the substrate contact portion and the end portion of the substrate is shorter than the distance between the portion excluding the land in the conductor pattern and the end portion of the substrate. According to such a configuration, it is possible to effectively use a region separated from the end portion of the substrate as a region where the conductor patterns are efficiently provided.

本発明において、前記導体パターンの少なくとも一部は、2つの前記位置決め突起の間を通っていることが好ましい。かかる構成によれば、2つの位置決め突起の間を、導体パターンを効率よく纏めて設ける領域として有効に利用することができる。   In the present invention, it is preferable that at least a part of the conductor pattern passes between the two positioning protrusions. According to this configuration, the area between the two positioning protrusions can be effectively used as a region where the conductor patterns are efficiently gathered.

本発明において、前記基板当接部と前記基板に形成されたランドとの距離は、当該ランドの中心から外周縁に向かうまでの導体部分の寸法の最小寸法より大であることが好ましい。かかる構成によれば、はんだ付けの際に用いたフラックスがランド周辺に付着している場合でも、基板当接部がフラックスを剥がすことを抑制することができる。それ故、基板から剥がれたフラックスが周辺に再付着することを防止することができる。   In the present invention, it is preferable that the distance between the board contact portion and the land formed on the board is larger than the minimum dimension of the conductor portion from the center of the land toward the outer peripheral edge. According to such a configuration, even when the flux used for soldering adheres to the periphery of the land, the substrate contact portion can be prevented from peeling off the flux. Therefore, it is possible to prevent the flux peeled off from the substrate from reattaching to the periphery.

本発明は、前記第1支持部材と前記第2支持部材との間に検出器が配置されている場合に適用すると効果的である。かかる構成の場合、基板から剥がれたフラックスが検出器に付着して誤検出を発生させるおそれがあるが、本発明では、基板のフラックスの剥がれが発生しにくいので、検出器へのフラックスの付着に起因する誤検出の発生を抑制することができる。   The present invention is effective when applied to a case where a detector is disposed between the first support member and the second support member. In such a configuration, the flux peeled off from the substrate may adhere to the detector and cause false detection. However, in the present invention, it is difficult for the flux on the substrate to peel off, so that the flux adheres to the detector. It is possible to suppress the occurrence of erroneous detection.

本発明は、前記検出器が前記基板に実装されている場合に適用すると効果的である。かかる構成の場合、基板から剥がれたフラックスが検出器に付着して誤検出を発生させるおそれが高いが、本発明では、基板のフラックスの剥がれが発生しにくいので、検出器へのフラックスの付着に起因する誤検出の発生を抑制することができる。   The present invention is effective when applied when the detector is mounted on the substrate. In such a configuration, the flux peeled off the substrate is likely to adhere to the detector and cause false detection, but in the present invention, it is difficult for the flux on the substrate to peel off, so the flux adheres to the detector. It is possible to suppress the occurrence of erroneous detection.

本発明は、前記検出器が、抵抗パターンとブラシとによって摺動部が構成されたポテンショメータである場合に適用すると効果的である。かかる構成の場合、基板から剥がれたフラックスが検出器に付着して誤検出を発生させるおそれが高いが、本発明では、基板のフラックスの剥がれが発生しにくいので、検出器へのフラックスの付着に起因する誤検出の発生を抑制することができる。   The present invention is effective when applied to a case where the detector is a potentiometer having a sliding portion constituted by a resistance pattern and a brush. In such a configuration, the flux peeled off the substrate is likely to adhere to the detector and cause false detection, but in the present invention, it is difficult for the flux on the substrate to peel off, so the flux adheres to the detector. It is possible to suppress the occurrence of erroneous detection.

本発明は、前記第1支持部材と前記第2支持部材との間に検出器が配置されている場合に適用すると効果的である。かかる構成の場合、基板から剥がれたフラックスが摺動部に付着して不具合を発生させるおそれが高いが、本発明では、基板のフラックスの剥がれが発生しにくいので、摺動部へのフラックスの付着に起因する不具合の発生を抑制することができる。   The present invention is effective when applied to a case where a detector is disposed between the first support member and the second support member. In such a configuration, there is a high possibility that the flux peeled off from the substrate adheres to the sliding portion and causes a problem. However, in the present invention, since the flux of the substrate hardly peels off, the flux adheres to the sliding portion. It is possible to suppress the occurrence of defects caused by the problem.

本発明では、第1支持部材に対して第2支持部材の基板押さえ部が基板を押し付けているため、基板を基板の厚さ方向に確実に位置決めすることができる。また、第1支持部材の位置決め突起は、基板の貫通穴を貫通し、位置決め突起の先端部は、基板押さえ部の筒部に嵌っているため、基板は面内方向において第1支持部材の所定位置および第2支持部材の所定位置に確実に位置決めされる。また、位置決め突起と基板の貫通穴とを利用しているため、基板は、貫通穴を基準に位置決めされる。従って、基板を面内方向で精度よく位置決めすることができる。さらに、第1支持部材の位置決め突起が第2支持部材の筒部に嵌っているので、基板の位置決め個所を利用して第1支持部材と第2支持部材との位置決めを行うこともできる。それ故、比較的簡素な構成で、第1支持部材と第2支持部材との間で基板を厚さ方向および面内方向で確実に位置決めすることができる。   In the present invention, since the substrate pressing portion of the second support member presses the substrate against the first support member, the substrate can be reliably positioned in the thickness direction of the substrate. In addition, since the positioning protrusion of the first support member penetrates the through hole of the substrate and the tip end portion of the positioning protrusion is fitted to the cylindrical portion of the substrate pressing portion, the substrate is in the in-plane direction and the predetermined position of the first support member. The position and the predetermined position of the second support member are surely positioned. Moreover, since the positioning protrusion and the through hole of the substrate are used, the substrate is positioned with reference to the through hole. Therefore, the substrate can be accurately positioned in the in-plane direction. Furthermore, since the positioning protrusion of the first support member is fitted in the cylindrical portion of the second support member, the first support member and the second support member can be positioned using the positioning portion of the substrate. Therefore, the substrate can be reliably positioned in the thickness direction and the in-plane direction between the first support member and the second support member with a relatively simple configuration.

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の第2ケース部材に形成した基板押さえ部の説明図である。It is explanatory drawing of the board | substrate holding | suppressing part formed in the 2nd case member of the electric switchgear to which this invention is applied. 本発明を適用した電動開閉装置における実装基板の位置決め構造の説明図である。It is explanatory drawing of the positioning structure of the mounting board | substrate in the electric switchgear to which this invention is applied.

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に用いた減速輪列等の説明図であり、図3(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3(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。
(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 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. 3A and 3B show the reduction gear train and the like as 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. 3B 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および図3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 FIGS. 2 and 3, the electric switchgear 1 of the present embodiment generally includes a motor 2, an output member 3, a speed reduction wheel train 4 that decelerates the rotation of the motor 2 and transmits it to the output member 3, It has 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。また、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はいずれも樹脂成形品である。   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. The first case member 51, the second case member 52, and the third case member 53 are all resin molded products.

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(4番歯車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 (the 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(図示せず)が嵌められる。その際は、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(図示せず)に当接させた状態で、Z方向の一方側Z1から、セルフタップねじ等の止め
ねじをケース体5の第1ねじ止め部511x、511yに止めてケース体5をフレームに固定する。
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 (not shown) for driving the toilet seat and toilet lid shown in FIG. 1 is fitted. At that time, with the surface 501 on one side Z1 in the Z direction of the case body 5 in contact with the frame (not shown) of the Western-style toilet 100, a self-tapping screw or the like is stopped from the one side Z1 in the Z direction. The case body 5 is fixed to the frame by fixing the screws to the first screwing portions 511x and 511y of the case body 5.

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(図示せず)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に駆動軸を嵌める場合、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(図示せず)に当接させた状態で、Z方向の他方側Z2から、セルフタップねじ等の止めねじをケース体5の第2ねじ止め部531x、531yに止めて、ケース体5をフレームに固定する。   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 (not shown) for driving the toilet seat and 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 is fitted in the second coupling recess 330, the other side in the Z direction is in a state where the surface 502 on the other side Z2 in the Z direction of the case body 5 is in contact with the frame (not shown) of the western toilet 100. From Z2, a set screw such as a self-tapping screw is fixed to the second screw fixing portions 531x and 531y of the case body 5 to fix the case body 5 to the frame.

(第1ケース部材51の詳細構成)
図4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4(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5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5(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方向の他方側Z2からみた分解斜視図である。
(Detailed configuration of the first case member 51)
FIG. 4 is an exploded perspective view of the electric switchgear 1 to which the present invention is applied. FIGS. 4A and 4B 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. 5 is a perspective view of the first case member 51 used in the electric switchgear 1 to which the present invention is applied. FIGS. 5A and 5B 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 other side Z2 of the Z direction.

図3、図4および図5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に設けられた外側円筒部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と回転中心軸線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. 3, 4, and 5, 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 provided on the other side Y2 in the Y direction with respect to 511, and a side plate portion 513 formed along the 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 the first connecting recess 310 of the output member 3 in the direction of the rotation center axis L.

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3に示すリング状の付勢部材6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(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12
0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 6 shown in FIG. 3 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 biasing member 6 (coil spring) is twisted in one direction and connected to the output member 3 and the first case member 51, the biasing member 6 rotates the output member 3 in one direction. When the output member 3 rotates in the other direction, a biasing force is generated. 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. Toilet seat 12
It is also possible to maintain a state where 0 or the toilet lid 130 is self-supporting. 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Z方向の一方側Z1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 Z <b> 1 in the Z direction. A motor pinion 24 is fixed to the motor shaft 22.

図5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. 5, 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.

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511yと側板部513とは補強リブ511zで繋がっている。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る。   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 portion 511y and the side plate portion 513 are connected by a reinforcing rib 511z. The surface on the one side Z1 in the Z direction of the first screwing portions 511x and 511y is at the same position in the Z direction.

(第3ケース部材53の詳細構成)
図2(b)、図3および図4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と回転中心軸線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, and 4, the third case member 53 includes a plate-like portion 531 extending in the Y direction with the thickness direction directed in the Z direction, and the Y direction with respect to the plate-like portion 531. The outer cylindrical portion 532 provided at the end located on the other side Y2 of the first plate and the side plate portion 533 formed along the end portion of the plate-like portion 531. The side plate portion 533 is a plate-like portion. It has a shape that stands up from the end of 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 rotation center axis L direction.

第3ケース部材53の底板部534(図3参照)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. 3) 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4(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7(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, stoppers 537 (see FIG. 4B) protruding from the plate-like connecting portion 536 to the one side Z1 in the Z direction are formed in the groove 532a at two locations separated in the circumferential direction. On the other hand, the flange portion 32 of the output member 3 is formed with a convex portion 327 (see FIG. 7A) projecting 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3参照)。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. 3). 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531v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 of the other side Z2 in the Z direction of the plate-like portion 531, a position overlapping the cylindrical portion 531v 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5参照)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. 5). Yes.

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。   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.

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る。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に直交する取り付け面を構成している。かかる取り付け面は、電動開閉装置1をフレームに固定する際にフレームに当接する面である。従って、ケース体5の姿勢が確実に規定されるので、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。   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. 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 surface of the bottom plate portion 534. The mounting surface is located at the same position in the Z direction as the surface on the other side Z2 in the Z direction and is orthogonal to the rotation center axis L of the output member 3. The mounting surface is a surface that comes into contact with the frame when the electric switching device 1 is fixed to the frame. Therefore, since the posture of the case body 5 is reliably defined, the rotation center axis L of the output member 3 can be prevented from being inclined.

(第2ケース部材52の詳細構成)
図6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6(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)
FIG. 6 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. 6 (a), 6 (b), and 6 (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および図6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, and 6, the second case member 52 includes a plate-like portion 521 that extends in the Y direction in the thickness direction in the Z direction, and an end of the plate-like portion 521. A side plate portion 523 formed along the portion, and the side plate portion 523 has a shape standing from the end 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、および第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に直交する取り付け面を構成している。かかる取り付け面は、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。従って、ケース体5の姿勢が確実に規定されるので、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。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2ケース部材52には大きな荷重が加わらない。従って、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。   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 of one side Z1 in the Z direction of the convex portion 551, the surface of the one side Z1 in the Z direction of the convex portion 552, the surface of the one side Z1 in the Z direction of the bottom plate portion 514, and the first screwing portions 511x and 511y The surface on one side Z1 in the Z direction includes 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. The mounting surface is located at the same position in the Z direction and is orthogonal to the rotation center axis L of the output member 3. The mounting surface is a surface that comes into contact with the frame 170 when the electric switching device 1 is fixed to the frame 170. Therefore, since the posture of the case body 5 is reliably defined, the rotation center axis L of the output member 3 can be prevented from being inclined. Further, 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 second case member 52 includes A large load is not applied. Therefore, 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.

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)には軸孔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. An axial hole 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に向けて突出する基板押さえ部526(基板押さえ部526a、526b、526c)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. Further, on the surface on the other side Z2 in the Z direction of the plate-like portion 521, there is a substrate pressing portion 526 (substrate pressing portions 526a, 526b, 526c) protruding toward the other side Z2 in the Z direction around the cylindrical portion 521h. Is formed.

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5参照)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 in the cylindrical portion 521r, and the convex portion 521w is fitted in a hole 511r (see FIG. 5) of the first case member 51.

(減速輪列4の構成)
図7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7(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. 7 is a perspective view of the reduction gear train 4 provided in the electric switchgear 1 to which the present invention is applied. FIGS. 7A and 7B 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3および図7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. 3 and 7, the reduction gear train 4 provided in the electric switchgear 1 has a first gear 41, a second gear 42, a third gear 43, and a transmission path from the motor pinion 24 toward 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.

2番歯車42は、大径歯車421が形成されたカップ状の第1回転部材と、小径歯車422が形成された第2回転部材とからなり、第1回転部材と第2回転部材との間にトルクリミッタが構成されている。このため、通常時は、小径歯車422と大径歯車421とは一体に回転するが、大径歯車421に過大な負荷が加わったとき、小径歯車422の回転は、大径歯車421に伝達されない。   The second gear 42 includes a cup-shaped first rotating member in which the large-diameter gear 421 is formed and a second rotating member in which the small-diameter gear 422 is formed, and is between the first rotating member and the second rotating member. A torque limiter is configured. Therefore, normally, the small-diameter gear 422 and the large-diameter gear 421 rotate integrally. However, when an excessive load is applied to the large-diameter gear 421, the rotation of the small-diameter gear 422 is not transmitted to the large-diameter gear 421. .

(回転検出部の構成)
図3、図6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. 3, 6, and 7, the electric opening / closing device 1 of the present embodiment includes 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.

回転検出部7は、第1ケース部材51と第2ケース部材52との間に配置された実装基板71と、実装基板71に実装されたポテンショメータ72(検出器)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、抵抗パターンと、抵抗パターンに対して摺動するブラシとからなる摺動部分を有している。実装基板71は、リード線79を介して中継基板77に接続されている。本形態において、中継基板77は、モータ2の胴部21のZ方向の他方側Z2の面に重ねて配置されている。   The rotation detection unit 7 includes a mounting board 71 disposed between the first case member 51 and the second case member 52 and a potentiometer 72 (detector) mounted on the mounting board 71. Although the detailed description is omitted, the potentiometer 72 has a sliding portion including a resistance pattern and a brush that slides with respect to the resistance pattern. The mounting board 71 is connected to the relay board 77 via lead wires 79. In this embodiment, the relay board 77 is disposed so as to overlap the surface of the other side Z2 in the Z direction of the body portion 21 of the motor 2.

実装基板71は、第2ケース部材52の基板押さえ部526(基板押さえ部526a、526b、526c)によって第1ケース部材51との間に保持されており、第1ケース部材51の板状部511に形成された開口部511f(図5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、実装基板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 mounting substrate 71 is held between the first case member 51 by the substrate pressing portion 526 (substrate pressing portions 526a, 526b, and 526c) of the second case member 52, and the plate-like portion 511 of the first case member 51. It arrange | positions so that the opening part 511f (refer FIG. 5 etc.) formed in 1 may be covered with the one side Z1 of a Z direction. However, the mounting substrate 71 has an opening 710 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)
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。
(Partition wall configuration)
In the electric opening and closing 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 1 on the radially outer side of the first gear 41. The number gear 41 is disposed at a position adjacent to the large-diameter gear 411. 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6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 FIG. 6, 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、実装基板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、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。従って、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。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。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。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。
The partition wall 9 is connected to the cylindrical portion 521h of the second case member 52, and the portion connected to the partition wall 9 and the cylindrical portion 521h is a notch 91 for arranging the corner portion of the mounting substrate 71. Yes. For this reason, the partition wall 9 is lowered by the depth of the notch 91 at the portion connected to the cylindrical portion 521h, but still covers the rotation detecting portion 7 from the large-diameter gear 411 of the first gear 41. It is in the state. Therefore, since it is difficult for grease to adhere to the rotation detection unit 7, it is possible to suppress the occurrence of problems such as erroneous detection in the rotation detection unit 7 due to adhesion of grease. 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, it is not necessary to add the member which comprises the partition wall 9 separately. 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. 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.

(実装基板71の位置決め構造)
図8は、本発明を適用した電動開閉装置1の第2ケース部材52に形成した基板押さえ部の説明図であり、図8(a)、(b)、(c)は、第2ケース部材52の基板押さえ部の斜視図、位置決め構造の断面図、および基板当接部の断面図である。図9は、本発明を適用した電動開閉装置1における実装基板71の位置決め構造の説明図であり、図9(a)、(b)は、第2ケース部材52の基板押さえ部と実装基板71との平面的な位置関係を示す説明図、およびランドの寸法に関する定義の説明図である。
(Positioning structure of mounting substrate 71)
FIG. 8 is an explanatory view of a substrate pressing portion formed in the second case member 52 of the electric switchgear 1 to which the present invention is applied. FIGS. 8A, 8B, and 8C are second case members. FIG. 52 is a perspective view of a substrate pressing portion 52, a sectional view of a positioning structure, and a sectional view of a substrate contact portion. FIG. 9 is an explanatory diagram of the positioning structure of the mounting board 71 in the electric switchgear 1 to which the present invention is applied, and FIGS. 9A and 9B show the board pressing portion of the second case member 52 and the mounting board 71. FIG. 6 is an explanatory diagram showing a planar positional relationship with the above, and an explanatory diagram of definitions relating to the dimensions of lands.

本形態の電動開閉装置1において、図4、図6および図7等を参照して説明した実装基板71は、剛性のプリント配線基板であり、ポテンショメータ72が実装された角形の本体部71aと、本体部71aからX方向の一方側X1に突出した細幅部71bとを有している。   In the electric switchgear 1 of the present embodiment, the mounting board 71 described with reference to FIGS. 4, 6, 7, etc. is a rigid printed wiring board, and a rectangular main body 71 a on which a potentiometer 72 is mounted; A narrow portion 71b protruding from the main body portion 71a to one side X1 in the X direction.

図8および図9に示すように、実装基板71は、片面基板であり、Z方向の一方側を向く一方面711、およびZ方向の他方側を向く他方面712のうち、一方面711のみに導体パターン715およびランド715a、715b、715cが形成されている。ランド715a、715b、715cのうち、実装基板71のX方向の中央に形成されたランド715b、715cは、ポテンショメータ72の端子727の実装用であり、実装基板71のX方向の他方側X2の端部に沿ってY方向に並ぶ3つのランド715aは、図7(a)に示すリード線79の接続用である。   As shown in FIGS. 8 and 9, the mounting substrate 71 is a single-sided substrate, and only one surface 711 of the one surface 711 facing one side in the Z direction and the other surface 712 facing the other side in the Z direction. Conductive pattern 715 and lands 715a, 715b, and 715c are formed. Of the lands 715a, 715b, and 715c, the land 715b and 715c formed at the center of the mounting board 71 in the X direction is for mounting the terminal 727 of the potentiometer 72, and is the end of the other side X2 of the mounting board 71 in the X direction. The three lands 715a arranged in the Y direction along the portion are for connecting the lead wires 79 shown in FIG.

また、実装基板71には貫通穴716、718、719が形成されている。貫通穴716、718、719のうち、実装基板71のX方向の他方側X2の端部に沿ってY方向に並ぶ3つの貫通穴718は、ランド715aの中央に形成されており、リード線79の端部を実装基板71の他方面712側から一方面711に引き出してランド715aではんだ付けするための穴である。実装基板71のX方向の中央においてY方向で離間する2つの貫通穴719は、ポテンショメータ72の位置決めピン729(図6(c)参照)が挿入された位置決め穴である。   Further, through holes 716, 718, and 719 are formed in the mounting substrate 71. Of the through holes 716, 718, 719, three through holes 718 arranged in the Y direction along the end portion X 2 on the other side X 2 of the mounting substrate 71 are formed in the center of the land 715 a, and lead wires 79 are arranged. This is a hole for drawing the end of the mounting board 71 from the other surface 712 side of the mounting substrate 71 to the one surface 711 and soldering with the land 715a. Two through holes 719 spaced in the Y direction at the center of the mounting substrate 71 in the X direction are positioning holes into which positioning pins 729 (see FIG. 6C) of the potentiometer 72 are inserted.

貫通穴716は、実装基板71を第1ケース部材51と第2ケース部材52との間で位置決めするための位置決め穴であり、実装基板71は、第1ケース部材51からなる第1支持部材と、第2ケース部材52からなる第2支持部材との間で位置決めされている。   The through-hole 716 is a positioning hole for positioning the mounting board 71 between the first case member 51 and the second case member 52, and the mounting board 71 is a first support member made of the first case member 51. The second support member made of the second case member 52 is positioned.

具体的には、第2ケース部材52には、貫通穴716の周りで実装基板71を第1ケース部材51に押し付ける基板押さえ部526が形成されている。基板押さえ部526は、第2ケース部材52の板状部521から実装基板71が位置するZ方向の他方側Z2に向けて突出した筒部528と、筒部528の先端部で実装基板71の一方面711に当接する基板当接部527とを有している。ここで、基板押さえ部526は、実装基板71と重なる位置に形成されており、実装基板71の端部から張り出していない。   Specifically, the second case member 52 is formed with a substrate pressing portion 526 that presses the mounting substrate 71 against the first case member 51 around the through hole 716. The substrate pressing portion 526 includes a cylindrical portion 528 that protrudes from the plate-like portion 521 of the second case member 52 toward the other side Z2 in the Z direction where the mounting substrate 71 is positioned, and a front end portion of the cylindrical portion 528 of the mounting substrate 71. A substrate abutting portion 527 that abuts on one surface 711 is provided. Here, the substrate pressing portion 526 is formed at a position overlapping the mounting substrate 71 and does not protrude from the end of the mounting substrate 71.

また、第1ケース部材51には、板状部511から実装基板71が位置するZ方向の一方側Z1に向けて突出して貫通穴716に嵌る位置決め突起516が形成されている。位置決め突起516において、貫通穴716を貫通して実装基板71からZ方向の一方側Z1に向けて突出した先端部分は、基板押さえ部526の筒部528の内側に嵌っている。   Further, the first case member 51 is formed with a positioning projection 516 that protrudes from the plate-like portion 511 toward one side Z <b> 1 in the Z direction where the mounting substrate 71 is located and fits into the through hole 716. In the positioning protrusion 516, a tip portion that passes through the through hole 716 and protrudes from the mounting substrate 71 toward the one side Z <b> 1 in the Z direction is fitted inside the cylindrical portion 528 of the substrate pressing portion 526.

この状態で、基板押さえ部526の基板当接部527は、実装基板71を第1ケース部材51の板状部511に押し付けて実装基板71を実装基板71の厚さ方向(Z方向)に
位置決めする。また、位置決め突起516は、貫通穴716および基板押さえ部526の筒部528に嵌って実装基板71を実装基板71の面内方向(XY方向)で位置決めするとともに、第1ケース部材51と第2ケース部材52とを位置決めしている。
In this state, the substrate contact portion 527 of the substrate pressing portion 526 presses the mounting substrate 71 against the plate-like portion 511 of the first case member 51 to position the mounting substrate 71 in the thickness direction (Z direction) of the mounting substrate 71. To do. The positioning protrusion 516 is fitted in the through hole 716 and the cylindrical portion 528 of the substrate pressing portion 526 to position the mounting substrate 71 in the in-plane direction (XY direction) of the mounting substrate 71, and the first case member 51 and the second case 51. The case member 52 is positioned.

本形態において、位置決め突起516は棒状である。また、位置決め突起516は丸棒状であるため、貫通穴716は位置決め突起516よりわずかに大径の円形である。基板押さえ部526の筒部528は、貫通穴716と同等の内径を有する穴が形成されており、円筒状である。   In this embodiment, the positioning protrusion 516 has a rod shape. Further, since the positioning protrusion 516 has a round bar shape, the through hole 716 has a circular shape slightly larger in diameter than the positioning protrusion 516. The cylindrical portion 528 of the substrate pressing portion 526 is formed with a hole having an inner diameter equivalent to that of the through hole 716 and is cylindrical.

また、位置決め突起516、貫通穴716および基板押さえ部526は、3組形成されている。まず、第1組目では、実装基板71の本体部71aのX方向の他方側X2において、Y方向の他方側Y2の端部付近で、位置決め突起516aが、貫通穴716aおよび基板押さえ部526aの筒部528aの途中位置まで嵌り、基板押さえ部526aの基板当接部527aが実装基板71を第1ケース部材51の板状部511に押し付けている。第2組目では、実装基板71の本体部71aのX方向の他方側X2において、Y方向の一方側Y1の端部付近で、位置決め突起516bが、貫通穴716bおよび基板押さえ部526bの筒部528bの途中位置まで嵌り、基板押さえ部526bの基板当接部527bが実装基板71を第1ケース部材51の板状部511に押し付けている。第3組目では、実装基板71の細幅部71bにおいて、位置決め突起516cが、貫通穴716cおよび基板押さえ部526cの筒部528cの途中位置まで嵌り、基板押さえ部526cの基板当接部527cが実装基板71を第1ケース部材51の板状部511に押し付けている。ここで、基板押さえ部526cの筒部528cと筒部521hとはリブ521sで繋がっており、基板押さえ部526aの筒部528aと基板押さえ部526bの筒部528bとは、リブ521sで繋がっているとともに、筒部521hともリブ521sで繋がっている。このため、筒部528a、528b、528cは、リブ521sによって補強され、強度が高められている。   Further, three sets of positioning protrusions 516, through holes 716, and substrate pressing portions 526 are formed. First, in the first group, on the other side X2 in the X direction of the main body portion 71a of the mounting substrate 71, the positioning projection 516a is located near the end portion on the other side Y2 in the Y direction so that the through hole 716a and the board pressing portion 526a The tube portion 528 a is fitted to the middle position, and the substrate contact portion 527 a of the substrate pressing portion 526 a presses the mounting substrate 71 against the plate-like portion 511 of the first case member 51. In the second set, on the other side X2 in the X direction of the main body portion 71a of the mounting substrate 71, the positioning projection 516b is located near the end portion on the one side Y1 in the Y direction, and the cylindrical portion of the through hole 716b and the board pressing portion 526b. The board abutting part 527b of the board pressing part 526b presses the mounting board 71 against the plate-like part 511 of the first case member 51. In the third set, in the narrow width portion 71b of the mounting substrate 71, the positioning protrusion 516c is fitted to a midway position between the through hole 716c and the cylindrical portion 528c of the substrate pressing portion 526c, and the substrate contact portion 527c of the substrate pressing portion 526c is The mounting substrate 71 is pressed against the plate-like portion 511 of the first case member 51. Here, the cylindrical portion 528c of the substrate pressing portion 526c and the cylindrical portion 521h are connected by a rib 521s, and the cylindrical portion 528a of the substrate pressing portion 526a and the cylindrical portion 528b of the substrate pressing portion 526b are connected by a rib 521s. At the same time, the cylindrical portion 521h is connected by a rib 521s. For this reason, the cylindrical portions 528a, 528b, and 528c are reinforced by the ribs 521s, and the strength is increased.

基板当接部527は、筒部528の先端部から実装基板71に向けて突出した突部からなり、基板当接部527は、実装基板71に当接する先端部分が凸曲面になっている(図8(c)参照)。また、基板当接部527は、実装基板71に当接する先端部分が半球状である。また、筒部528の軸線方向(Z方向)からみたとき、基板当接部527の面積は、筒部528の面積の1/2以下であり、基板当接部527の外径は、筒部528の外径の1/5以下である。   The substrate abutting portion 527 is a protrusion that protrudes from the distal end portion of the cylindrical portion 528 toward the mounting substrate 71, and the substrate abutting portion 527 has a convex curved surface at the distal end portion that abuts the mounting substrate 71 ( (Refer FIG.8 (c)). The substrate contact portion 527 has a hemispherical tip portion that contacts the mounting substrate 71. Further, when viewed from the axial direction (Z direction) of the cylindrical portion 528, the area of the substrate contact portion 527 is equal to or less than ½ of the area of the cylindrical portion 528, and the outer diameter of the substrate contact portion 527 is the cylindrical portion. It is 1/5 or less of the outer diameter of 528.

ここで、基板当接部527と実装基板71の端部との距離は、導体パターン715においてランド715a、715b、715cを除く部分と実装基板71の端部との距離より短い。すなわち、基板当接部527は、実装基板71の端部に近い位置に配置されており、基板当接部527a、527bの間で導体パターン715が延在している等、実装基板71において端部から離間した領域が、導体パターン715を纏めて設ける領域として利用されている。また、基板当接部527は、いずれのランド715a、715b、715cからも離間するように配置されている。   Here, the distance between the substrate contact portion 527 and the end portion of the mounting substrate 71 is shorter than the distance between the portion of the conductor pattern 715 excluding the lands 715 a, 715 b, and 715 c and the end portion of the mounting substrate 71. That is, the substrate contact portion 527 is disposed at a position close to the end portion of the mounting substrate 71, and the conductor pattern 715 extends between the substrate contact portions 527a and 527b. A region separated from the part is used as a region in which the conductor pattern 715 is provided collectively. The substrate contact portion 527 is disposed so as to be separated from any of the lands 715a, 715b, and 715c.

例えば、X方向において、ランド715a、715cの略中央に基板押さえ部526a、526bが配置されている。また、基板押さえ部526aにおいて、基板当接部527aは、筒部528aの先端部のうち、実装基板71の端部に近い位置(Y方向の他方側Y2)に設けられ、基板押さえ部526bにおいて、基板当接部527bは、筒部528bの先端部のうち、実装基板71の端部に近い位置(Y方向の一方側Y1)に設けられている。また、X方向において、基板押さえ部526cは、細幅部71bに配置されている。また、基板押さえ部526cにおいて、基板当接部527cは、筒部528cの先端部のうち、実装基板71の端部に近い位置(X方向の一方側X1)に設けられている。このた
め、基板当接部527aは、筒部528bから最も離れた位置にあり、基板当接部527bは、筒部528aから最も離れた位置にあり、基板当接部527cは、筒部528aと筒部528bとの中央から最も離れた位置にある。従って、基板当接部527a、527b、527cを結んだ範囲(三角形)は、筒部528a、528b、528cの中心を含んだ範囲より、X方向およびY方向の双方においてサイズが大である。それ故、基板当接部527a、527b、527cは、広い範囲で実装基板71を保持するため、実装基板71を安定した状態に保持することができる。
For example, in the X direction, substrate pressing portions 526a and 526b are arranged in the approximate center of the lands 715a and 715c. Further, in the substrate pressing portion 526a, the substrate abutting portion 527a is provided at a position close to the end portion of the mounting substrate 71 (the other side Y2 in the Y direction) of the distal end portion of the cylindrical portion 528a, and in the substrate pressing portion 526b, The substrate contact portion 527b is provided at a position (one side Y1 in the Y direction) close to the end portion of the mounting substrate 71 in the tip portion of the cylindrical portion 528b. In the X direction, the substrate pressing portion 526c is disposed in the narrow width portion 71b. Further, in the substrate pressing portion 526c, the substrate contact portion 527c is provided at a position (one side X1 in the X direction) near the end portion of the mounting substrate 71 in the tip portion of the cylindrical portion 528c. Therefore, the substrate contact portion 527a is located at the position farthest from the cylinder portion 528b, the substrate contact portion 527b is located at the position farthest from the cylinder portion 528a, and the substrate contact portion 527c is connected to the cylinder portion 528a. It is at a position farthest from the center with the tube portion 528b. Accordingly, the range (triangle) connecting the substrate contact portions 527a, 527b, and 527c is larger in both the X direction and the Y direction than the range including the centers of the cylindrical portions 528a, 528b, and 528c. Therefore, since the board contact portions 527a, 527b, and 527c hold the mounting board 71 in a wide range, the mounting board 71 can be held in a stable state.

また、基板当接部527と実装基板71に形成されたランド715a、715b、715cとの距離は、ランド715a、715b、715cの中心から外周縁に向かうまでの導体部分の寸法Wの最小寸法より大である。ここで、図9(b1)、(b2)に示すランド715aのように貫通穴718が形成されている場合、上記の寸法Wは、ランド715aの幅寸法に相当する。これに対して、図9(b3)、(b4)に示すランド715b、715cのように貫通穴718が形成されていない場合、上記の寸法Wは、ランド715b、715cの外形寸法の1/2の幅寸法に相当する。   Further, the distance between the board contact portion 527 and the lands 715a, 715b, and 715c formed on the mounting board 71 is smaller than the minimum dimension of the dimension W of the conductor portion from the center of the lands 715a, 715b, and 715c to the outer peripheral edge. It ’s big. Here, when the through hole 718 is formed like the land 715a shown in FIGS. 9B1 and 9B2, the dimension W corresponds to the width dimension of the land 715a. On the other hand, when the through hole 718 is not formed like the lands 715b and 715c shown in FIGS. 9B3 and 9B4, the dimension W is ½ of the outer dimensions of the lands 715b and 715c. This corresponds to the width dimension.

(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における実装基板71の位置決め構造は、第1ケース部材51(第1支持部材)に対して第2ケース部材52(第2支持部材)の基板押さえ部526が実装基板71を押し付けているため、実装基板71を実装基板71の厚さ方向に確実に位置決めすることができる。また、第1ケース部材51に設けた位置決め突起516は、実装基板71の貫通穴716を貫通し、位置決め突起516の先端部が基板押さえ部526の筒部528に嵌っている。しかも、基板押さえ部526、貫通穴716および位置決め突起516が複数組設けられている。このため、実装基板71は面内方向において第1ケース部材51の所定位置および第2ケース部材52の所定位置に確実に位置決めされる。また、位置決め突起516と実装基板71の貫通穴716とを利用しているため、実装基板71は、貫通穴716を基準に位置決めされる。従って、実装基板71の端部を基準に位置決めする場合より面内方向で精度よく位置決めすることができる。さらに、第1ケース部材51の位置決め突起516が第2ケース部材52の筒部528に嵌っているので、実装基板71の位置決め個所を利用して第1ケース部材51と第2ケース部材52との位置決めを行うこともできる。それ故、比較的簡素な構成で、第1ケース部材51と第2ケース部材52との間で実装基板71を厚さ方向および面内方向で確実に位置決めすることができるとともに、第1ケース部材51と第2ケース部材52との位置決めを行うこともできる。
(Main effects of this form)
As described above, the mounting structure of the mounting substrate 71 in the electric switchgear 1 of the present embodiment is the substrate pressing of the second case member 52 (second support member) with respect to the first case member 51 (first support member). Since the portion 526 presses the mounting substrate 71, the mounting substrate 71 can be reliably positioned in the thickness direction of the mounting substrate 71. Further, the positioning protrusion 516 provided on the first case member 51 passes through the through hole 716 of the mounting substrate 71, and the distal end portion of the positioning protrusion 516 is fitted into the cylindrical portion 528 of the substrate pressing portion 526. In addition, a plurality of sets of substrate pressing portions 526, through holes 716, and positioning protrusions 516 are provided. For this reason, the mounting substrate 71 is reliably positioned at a predetermined position of the first case member 51 and a predetermined position of the second case member 52 in the in-plane direction. Further, since the positioning protrusion 516 and the through hole 716 of the mounting substrate 71 are used, the mounting substrate 71 is positioned with reference to the through hole 716. Therefore, it is possible to position with higher accuracy in the in-plane direction than when positioning with the end of the mounting substrate 71 as a reference. Further, since the positioning protrusion 516 of the first case member 51 is fitted in the cylindrical portion 528 of the second case member 52, the positioning portion of the mounting substrate 71 is used to connect the first case member 51 and the second case member 52. Positioning can also be performed. Therefore, the mounting substrate 71 can be reliably positioned in the thickness direction and the in-plane direction between the first case member 51 and the second case member 52 with a relatively simple configuration, and the first case member 51 and the second case member 52 can also be positioned.

また、基板当接部527は、筒部528の先端部から実装基板71に向けて突出した突部からなるため、筒部528の軸線方向からみたとき、基板当接部527の面積は、筒部528の面積の1/2以下である等、基板当接部527が小さい。また、基板当接部527は、実装基板71に当接する先端部分が凸曲面になっている。このため、基板押さえ部526と実装基板71とが接する個所を実装基板71の平坦な領域に限定することができるので、実装基板71を厚さ方向に確実に位置決めすることができる。また、基板当接部527が実装基板71を押さえた際、基板当接部527がわずかに変形した状態とすることができるので、第1ケース部材51と第2ケース部材52との間に実装基板71を確実に位置決めすることができる。   Further, since the substrate abutting portion 527 is composed of a protrusion protruding from the tip end portion of the cylinder portion 528 toward the mounting substrate 71, the area of the substrate abutting portion 527 when viewed from the axial direction of the cylinder portion 528 is as follows. The substrate contact portion 527 is small, for example, it is ½ or less of the area of the portion 528. In addition, the substrate contact portion 527 has a convex curved surface at the tip portion that contacts the mounting substrate 71. For this reason, since the location where the board | substrate holding | suppressing part 526 and the mounting board | substrate 71 contact | connect can be limited to the flat area | region of the mounting board | substrate 71, the mounting board | substrate 71 can be positioned reliably in the thickness direction. Further, when the substrate contact portion 527 presses the mounting substrate 71, the substrate contact portion 527 can be slightly deformed, so that it is mounted between the first case member 51 and the second case member 52. The substrate 71 can be reliably positioned.

また、基板当接部527と実装基板71の端部との距離は、導体パターン715においてランド715a、715b、715cを除く部分と実装基板71の端部との距離より短い。また、導体パターン15の少なくとも一部は、2つの位置決め突起516a、516bの間を通っている。すなわち、実装基板71において端部から離間した領域を、導体パターン715を効率よく纏めて設ける領域として有効に利用しているため、実装基板71
に対する導体パターン715のレイアウトの自由度が高い等、実装基板71の設計が容易である。
Further, the distance between the substrate contact portion 527 and the end portion of the mounting substrate 71 is shorter than the distance between the portion of the conductor pattern 715 excluding the lands 715 a, 715 b, and 715 c and the end portion of the mounting substrate 71. Further, at least a part of the conductor pattern 15 passes between the two positioning protrusions 516a and 516b. That is, since the region separated from the end portion of the mounting substrate 71 is effectively used as a region where the conductor patterns 715 are efficiently gathered, the mounting substrate 71
For example, the mounting substrate 71 can be easily designed such that the layout degree of the conductor pattern 715 is high.

また、基板当接部527と実装基板71に形成されたランド715a、715b、715cとの距離は、ランド715a、715b、715cの中心から外周縁に向かうまでの導体部分の寸法Wの最小寸法より大であり、基板当接部527は、ランド715a、715b、715cから十分に離間した位置で実装基板71に当接している。このため、はんだ付けの際に用いたフラックスがランド715a、715b、715c周辺に付着している場合でも、基板当接部527がフラックスと接しにくい。従って、実装基板71からフラックスが剥がれにくい。それ故、実装基板71から剥がれたフラックスが周辺に再付着することを抑制することができる。特に本形態では、基板当接部527が筒部528の先端部から実装基板71に向けて突出した突部からなるため、基板押さえ部526と実装基板71とが接する個所を限定することができる。このため、基板当接部527がフラックスと接しにくい。しかも、基板当接部527は、実装基板71に当接する先端部分が凸曲面になっているため、基板当接部527にはエッジがない。従って、基板当接部527がフラックスと接した場合でも、フラックスが実装基板71から剥がれにくい。それ故、第1ケース部材51と第2ケース部材52との間において、検出器としてのポテンショメータ72が配置されている場合でも、フラックスがポテンショメータ72の摺動部に侵入しにくい。よって、ポテンショメータ72において、摺動不良や接触不良等の不具合が発生しにくい。   Further, the distance between the board contact portion 527 and the lands 715a, 715b, and 715c formed on the mounting board 71 is smaller than the minimum dimension of the dimension W of the conductor portion from the center of the lands 715a, 715b, and 715c to the outer peripheral edge. The board contact portion 527 is in contact with the mounting board 71 at positions sufficiently separated from the lands 715a, 715b, and 715c. For this reason, even when the flux used for soldering adheres to the periphery of the lands 715a, 715b, and 715c, the board contact portion 527 is unlikely to contact the flux. Therefore, the flux is difficult to peel off from the mounting substrate 71. Therefore, it is possible to suppress the flux peeled off from the mounting substrate 71 from reattaching to the periphery. In particular, in this embodiment, the substrate contact portion 527 is a protrusion that protrudes from the distal end portion of the cylindrical portion 528 toward the mounting substrate 71, so that the portion where the substrate pressing portion 526 contacts the mounting substrate 71 can be limited. . For this reason, the board | substrate contact part 527 is hard to contact | connect a flux. In addition, the substrate contact portion 527 has a convex curved surface at the tip that contacts the mounting substrate 71, and thus the substrate contact portion 527 has no edge. Therefore, even when the substrate contact portion 527 is in contact with the flux, the flux is not easily peeled off from the mounting substrate 71. Therefore, even when the potentiometer 72 as a detector is disposed between the first case member 51 and the second case member 52, the flux hardly enters the sliding portion of the potentiometer 72. Therefore, in the potentiometer 72, problems such as poor sliding and poor contact are unlikely to occur.

(他の実施の形態)
上記実施の形態では、剥がれたフラックスがポテンショメータ72の摺動部で不具合を発生させることを抑制できる点を説明した。但し、検出器として光学センサ等を用いた場合でも、剥がれたフラックスが光学センサに付着すると、不具合を発生させる。それ故、検出器として光学センサ等を用いた場合に本発明を適用すれば、検出器において、フラックスを原因とする不具合の発生を抑制することができる。また、剥がれたフラックスは、ポテンショメータ72の摺動部以外の摺動部で不具合を発生させるおそれがある。従って、第1ケース部材51(第1支持部材)と第2ケース部材52との間に摺動部が配置されている場合に本発明を適用すれば、摺動部において、フラックスを原因とする不具合の発生を抑制することができる。
(Other embodiments)
In the above-described embodiment, it has been described that the peeled flux can be prevented from causing a failure at the sliding portion of the potentiometer 72. However, even when an optical sensor or the like is used as a detector, if the peeled flux adheres to the optical sensor, a problem occurs. Therefore, if the present invention is applied when an optical sensor or the like is used as a detector, it is possible to suppress the occurrence of defects due to flux in the detector. Further, the peeled flux may cause a problem in a sliding portion other than the sliding portion of the potentiometer 72. Therefore, if the present invention is applied when the sliding portion is disposed between the first case member 51 (first support member) and the second case member 52, the sliding portion causes flux. The occurrence of defects can be suppressed.

上記実施の形態では、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-described embodiment, 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
51・・第1ケース部材(第1支持部材)
52・・第2ケース部材(第2支持部材)
53・・第3ケース部材
70・・回転検出用従動歯車
71・・実装基板(基板)
72・・ポテンショメータ(検出器)
516、516a、516b、516c・・位置決め突起
526、526a、526b、526c・・基板押さえ部
527、527a、527b、527c・・基板当接部
528、528a、528b、528c・・筒部
715・・導体パターン
715a、715b、715c・・ランド
716、716a、716b、716c・・貫通穴
DESCRIPTION OF SYMBOLS 1 ... Electric switchgear 2 Motor 3 Output member 4 Reduction wheel train 5 Case body 7 Rotation detector 51 First case member (first support member)
52 .. Second case member (second support member)
53 .. Third case member 70 .. Driven gear 71 for rotation detection .. Mounting board (board)
72 .. Potentiometer (detector)
516, 516a, 516b, 516c .... Positioning protrusions 526, 526a, 526b, 526c .... Substrate pressing parts 527, 527a, 527b, 527c .... Substrate contact parts 528, 528a, 528b, 528c ... Conductor patterns 715a, 715b, 715c..Lands 716, 716a, 716b, 716c, ..through holes

Claims (10)

第1支持部材に対して第2支持部材の基板押さえ部が、少なくとも一方面に導体パターンが形成された基板を押し付けることにより当該基板の位置決めを行う基板の位置決め構造であって、
前記基板に貫通穴が形成され、
前記第1支持部材には前記貫通穴を貫通する位置決め突起が設けられ、
前記基板押さえ部は、前記位置決め突起の先端側が嵌った筒部と、該筒部の先端部で前記基板に当接する基板当接部と、を有し、
前記基板当接部は、前記筒部の先端部から前記基板に向けて突出した突部からなり、
前記基板押さえ部、前記貫通穴および前記位置決め突起は各々、三角形を成す3ヶ所に設けられており、
前記3ヶ所の各々で前記筒部の先端部に設けられた前記突部を結んだ範囲は、前記3ヶ所に設けられた前記筒部の中心を結んだ範囲より大きいことを特徴とする基板の位置決め構造。
The substrate pressing portion of the second support member is a substrate positioning structure that positions the substrate by pressing the substrate on which the conductor pattern is formed on at least one surface against the first support member,
A through hole is formed in the substrate;
The first support member is provided with a positioning projection that penetrates the through hole,
The substrate pressing portion includes a cylindrical portion in which a distal end side of the positioning projection is fitted, and a substrate contact portion that contacts the substrate at the distal end portion of the cylindrical portion ,
The substrate abutting portion is composed of a protrusion protruding toward the substrate from the tip portion of the cylindrical portion,
The substrate pressing portion, the through hole, and the positioning protrusion are each provided at three locations forming a triangle,
A range of connecting the protrusions provided at the tip of the cylindrical portion at each of the three locations is larger than a range connecting the centers of the cylindrical portions provided at the three locations . Positioning structure.
前記基板当接部は、前記基板に当接する先端部分が凸曲面になっていることを特徴とする請求項1に記載の基板の位置決め構造。 2. The substrate positioning structure according to claim 1 , wherein the substrate contact portion has a convex curved surface at a tip portion that contacts the substrate. 3. 前記筒部の軸線方向からみたとき、前記基板当接部の面積は、前記筒部の面積の1/2以下であることを特徴とする請求項1または2に記載の基板の位置決め構造。 When viewed from the axial direction of the cylindrical portion, the area of the substrate contact portion, positioning structure substrate according to claim 1 or 2, characterized in that 1/2 or less of the area of the cylindrical portion. 前記基板当接部と前記基板の端部との距離は、前記導体パターンにおいてランドを除く部分と前記基板の端部との距離より短いことを特徴とする請求項1乃至3の何れか一項に記載の基板の位置決め構造。 4. The distance between the substrate contact portion and the end portion of the substrate is shorter than the distance between the portion excluding the land in the conductor pattern and the end portion of the substrate. 5. The substrate positioning structure described in 1. 前記導体パターンの少なくとも一部は、2つの前記位置決め突起の間を通っ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基板の位置決め構造。 5. The substrate positioning structure according to claim 1 , wherein at least a part of the conductor pattern passes between the two positioning protrusions . 6. 前記基板当接部と前記基板に形成されたランドとの距離は、当該ランドの中心から外周縁に向かうまでの導体部分の寸法の最小寸法より大であることを特徴とする請求項1乃至5の何れか一項に記載の基板の位置決め構造。 6. A distance between the board contact portion and a land formed on the board is larger than a minimum dimension of a conductor portion from the center of the land toward an outer peripheral edge. The substrate positioning structure according to claim 1. 前記第1支持部材と前記第2支持部材との間には検出器が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基板の位置決め構造。 Positioning structure of the substrate according to any one of claims 1 to 6, characterized in that the detector is arranged between the second support member and the first support member. 前記検出器は、前記基板に実装されていることを特徴とする請求項に記載の基板の位置決め構造。 The substrate positioning structure according to claim 7 , wherein the detector is mounted on the substrate. 前記検出器は、抵抗パターンとブラシとによって摺動部が構成されたポテンショメータであることを特徴とする請求項に記載の基板の位置決め構造。 9. The substrate positioning structure according to claim 8 , wherein the detector is a potentiometer having a sliding portion formed of a resistance pattern and a brush . 前記第1支持部材と前記第2支持部材との間には摺動部が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基板の位置決め構造。 The substrate positioning structure according to any one of claims 1 to 6, wherein a sliding portion is disposed between the first support member and the second support member .
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