JP6358971B2 - motor - Google Patents

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JP6358971B2
JP6358971B2 JP2015018559A JP2015018559A JP6358971B2 JP 6358971 B2 JP6358971 B2 JP 6358971B2 JP 2015018559 A JP2015018559 A JP 2015018559A JP 2015018559 A JP2015018559 A JP 2015018559A JP 6358971 B2 JP6358971 B2 JP 6358971B2
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leg
motor
leg fixing
motor casing
fixing part
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JP2016144307A (en
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竹島　豊
豊 竹島
友明 峯尾
友明 峯尾
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Description

本発明は、モータに関し、特に、モータケーシングに脚部材が固定されるモータに関する。   The present invention relates to a motor, and more particularly to a motor in which a leg member is fixed to a motor casing.

図１１（ａ）は従来のモータ１１０の一例を示す側面図である。モータ１１０は、モータケーシング１１４を含むモータ本体１１６と、床等の外部部材１１８にモータ本体１１６を据え付けるための脚部材１２０とを別体にする場合がある（特許文献１参照）。このモータケーシング１１４には脚部材１２０が固定される複数の脚固定部１２８が設けられ、ボルト１６４によりモータケーシング１１４の脚固定部１２８と脚部材１２０が締結される。また、脚部材１２０には外部部材１１８に固定される複数の外部固定部１５６が設けられ、ボルト１６０により脚部材１２０の外部固定部１５６と外部部材１１８が締結される。   FIG. 11A is a side view showing an example of a conventional motor 110. In some cases, the motor 110 includes a motor main body 116 including a motor casing 114 and a leg member 120 for mounting the motor main body 116 on an external member 118 such as a floor (see Patent Document 1). The motor casing 114 is provided with a plurality of leg fixing portions 128 to which the leg members 120 are fixed, and the leg fixing portions 128 of the motor casing 114 and the leg members 120 are fastened by bolts 164. Further, the leg member 120 is provided with a plurality of external fixing portions 156 that are fixed to the external member 118, and the external fixing portion 156 of the leg member 120 and the external member 118 are fastened by the bolt 160.

特開２０１４−１７６２６６号公報JP 2014-176266 A

ところで、駆動対象となる相手機械に対するモータ１１０の取り合い寸法は、通常、ＪＩＳ Ｃ ４２１０やＩＥＣ（国際電気標準会議）等において枠番号を用いて定められる。この取り合い寸法には、回転軸１１２の前端面から回転軸１１２を横断する所定の基準面１１９までの距離Ｒや、所定の基準面１１９から各外部固定部１５６までの距離Ｆが含まれる。つまり、各外部固定部１５６は、ＪＩＳ等に準拠すると、回転軸１１２の位置に応じた所定の位置に設けられる。   By the way, the contact size of the motor 110 with the counterpart machine to be driven is usually determined by using a frame number in JIS C 4210, IEC (International Electrotechnical Commission) or the like. The mating dimensions include a distance R from the front end surface of the rotating shaft 112 to a predetermined reference surface 119 crossing the rotating shaft 112 and a distance F from the predetermined reference surface 119 to each external fixing portion 156. That is, each external fixing portion 156 is provided at a predetermined position according to the position of the rotating shaft 112 in accordance with JIS or the like.

また、モータケーシング１１４の各脚固定部１２８には、モータ本体１１６を吊り上げるために、アイボルト等の吊りボルトが螺合される場合がある。このようにモータ本体１１６を含む吊り上げ対象物を吊り上げるとき、バランスよく吊り上げられるように、モータケーシング１１４の各脚固定部１２８は、吊り上げ対象物での重心に応じた位置に設ける場合がある。   In addition, a suspension bolt such as an eyebolt may be screwed to each leg fixing portion 128 of the motor casing 114 in order to lift the motor body 116. Thus, when lifting the lifting object including the motor main body 116, each leg fixing portion 128 of the motor casing 114 may be provided at a position corresponding to the center of gravity of the lifting object so that the lifting object can be lifted with good balance.

以上のように、脚部材１２０の外部固定部１５６は、ＪＩＳ等に準拠すると、回転軸１１２の位置に応じた所定の位置に設けられ、モータケーシング１１４の各脚固定部１２８は、吊り上げ対象物での重心に応じた位置に設けられる。これらに起因して、脚部材１２０の外部固定部１５６は、モータ本体１１６の前後方向Ｘでの脚固定部１２８の中心位置Ｃｐ（詳細は後述する）に対して前後方向Ｘに非対称の位置に設けられる場合がある。   As described above, according to JIS or the like, the external fixing portion 156 of the leg member 120 is provided at a predetermined position according to the position of the rotating shaft 112, and each leg fixing portion 128 of the motor casing 114 is a lifting object. It is provided at a position corresponding to the center of gravity. Due to these reasons, the external fixing portion 156 of the leg member 120 is asymmetrical in the front-rear direction X with respect to the center position Cp (details will be described later) of the leg fixing portion 128 in the front-rear direction X of the motor body 116. May be provided.

この場合、ＪＩＳ等の規格に準拠した位置に外部固定部１５６を配置するうえでは、モータケーシング１１４に所定の向きで脚部材１２０を固定する必要がある。かりに、図１１（ｂ）に示すように、前述の中心位置Ｃｐに対して脚部材１２０を前後逆向きにした状態でモータケーシング１１４に脚部材１２０が固定されてしまうと、ＪＩＳ等の規格に準拠した所定の位置に外部固定部１５６が配置されなくなる。この状態のままで脚部材１２０を外部部材１１８に固定した場合、モータ１１０と外部装置とが干渉してこれらを取り付け不能となったり、枠番号に応じた諸性能を安定して発揮できなくなる恐れがあり、その改善が求められる。   In this case, the leg member 120 needs to be fixed to the motor casing 114 in a predetermined direction in order to arrange the external fixing portion 156 at a position conforming to a standard such as JIS. Incidentally, as shown in FIG. 11B, when the leg member 120 is fixed to the motor casing 114 in a state where the leg member 120 is reversed in the front-rear direction with respect to the center position Cp, the standard such as JIS is satisfied. The external fixing portion 156 is not disposed at a predetermined position in compliance. If the leg member 120 is fixed to the external member 118 in this state, the motor 110 and the external device may interfere with each other, making it impossible to attach them, and various performances corresponding to the frame number may not be exhibited stably. There is a need for improvement.

本発明は、こうした状況に鑑みてなされたものであり、その目的は、モータケーシングに所定の向きとは前後逆向きで脚部材が固定されるのを防止できるモータを提供することにある。   This invention is made | formed in view of such a condition, The objective is to provide the motor which can prevent that a leg member is fixed to a motor casing in the direction opposite to the front-back direction.

本発明のある態様はモータに関し、モータケーシングを有するモータ本体と、モータ本体を外部部材に据え付けるための脚部材と、を備え、モータケーシングは、脚部材が固定される脚固定部を有し、脚部材は、外部部材に固定するための外部固定部を有し、外部固定部は、モータ本体の前後方向での脚固定部の中心位置に対して前後方向に非対称の位置に設けられ、モータケーシング及び脚部材の何れか一方には組み違え防止部が設けられ、他方には干渉部が設けられ、モータケーシングに所定の向きで脚部材を取り付けるとき、組み違え防止部と干渉部が干渉せず、モータケーシングに所定の向きとは前後逆向きで脚部材を取り付けようとするとき、組み違え防止部と干渉部が干渉する。   An aspect of the present invention relates to a motor, comprising: a motor body having a motor casing; and a leg member for mounting the motor body on an external member, the motor casing having a leg fixing portion to which the leg member is fixed; The leg member has an external fixing part for fixing to the external member, and the external fixing part is provided at an asymmetrical position in the front-rear direction with respect to the center position of the leg fixing part in the front-rear direction of the motor body. One of the casing and the leg member is provided with a misconfiguration prevention portion, and the other is provided with an interference portion. When the leg member is attached to the motor casing in a predetermined direction, the misconfiguration prevention portion and the interference portion interfere with each other. First, when the leg member is to be attached to the motor casing in the direction opposite to the front and rear direction, the combination preventing portion and the interference portion interfere with each other.

本発明によれば、モータケーシングに所定の向きとは前後逆向きで脚部材が固定されるのを防止できる。   According to the present invention, it is possible to prevent the leg member from being fixed to the motor casing in the reverse direction from the predetermined direction.

実施形態に係るモータの部分断面側面図である。It is a partial section side view of the motor concerning an embodiment. 実施形態に係るモータの前面図である。It is a front view of the motor concerning an embodiment. 図２の方向Ｆｖ１から見たフレームの斜視図である。FIG. 3 is a perspective view of the frame viewed from a direction Fv1 in FIG. 2. 図２の方向Ｆｖ２から見たフレームの斜視図である。FIG. 3 is a perspective view of the frame viewed from a direction Fv2 in FIG. 2. 実施形態に係るモータ本体の使用状態の一例を示す側面図である。It is a side view which shows an example of the use condition of the motor main body which concerns on embodiment. （ａ）は実施形態に係る脚部材の上面図であり、（ｂ）はその前面図である。(A) is a top view of the leg member which concerns on embodiment, (b) is the front view. 実施形態に係る脚部材とモータ本体の一部との位置関係を示す上面図である。It is a top view which shows the positional relationship of the leg member which concerns on embodiment, and a part of motor main body. （ａ）は図７のＡ１−Ａ１線断面での脚部材とモータ本体の一部との位置関係を示し、（ｂ）は図７のＡ２−Ａ２線断面での位置関係を示し、（ｃ）は（ａ）の部分拡大図である。(A) shows the positional relationship between the leg member and a part of the motor body in the cross section along line A1-A1 in FIG. 7, (b) shows the positional relation in the cross section along line A2-A2 in FIG. ) Is a partially enlarged view of (a). （ａ）は実施形態に係るモータケーシングに所定の向きとは前後逆向きで脚部材を取り付けようとするときの脚部材とモータ本体の一部との位置関係を示す上面図であり、（ｂ）は（ａ）の方向Ｆｖ３から見た部分拡大図である。(A) is a top view which shows the positional relationship of a leg member and a part of motor main body when it is going to attach a leg member to the motor casing which concerns on embodiment in the direction opposite to the predetermined direction, (b) ) Is a partially enlarged view seen from the direction Fv3 of (a). 変形例に係る組み違え防止部と干渉部を示す側面断面図である。It is side surface sectional drawing which shows the combination prevention part and interference part which concern on a modification. 従来のモータの一例を示す側面図である。It is a side view which shows an example of the conventional motor.

以下、実施形態，変形例では、同一の構成要素に同一の符号を付し、重複する説明を省略する。また、各図面では、説明の便宜のため、構成要素の一部を適宜省略する。   Hereinafter, in the embodiment and the modification, the same reference numerals are given to the same components, and redundant description is omitted. Moreover, in each drawing, a part of component is abbreviate | omitted suitably for convenience of explanation.

図１、図２は本実施形態に係るモータ１０を示す部分断面側面図、前面図である。モータ１０は、図示しない回転子及び固定子とともに、回転軸１２の一部を収容するモータケーシング１４を含むモータ本体１６と、モータ本体１６を外部部材１８に据え付けるための脚部材２０とを備える。モータ本体１６はかご形誘導電動機である。外部部材１８はモータ１０による駆動対象となる相手機械が設置される床面等の構造体である。以下、回転軸１２の軸方向をモータ本体１６の前後方向Ｘ、前後方向Ｘと直交する水平方向（外部部材１８と平行な方向）をモータ本体１６の左右方向Ｙ、これらと直交する方向（外部部材１８に直交する方向）をモータ本体１６の上下方向Ｚとして説明する。   1 and 2 are a partial sectional side view and a front view showing a motor 10 according to the present embodiment. The motor 10 includes a motor body 16 including a motor casing 14 that houses a part of the rotating shaft 12, and a leg member 20 for mounting the motor body 16 on an external member 18, together with a rotor and a stator (not shown). The motor body 16 is a squirrel-cage induction motor. The external member 18 is a structure such as a floor where a counterpart machine to be driven by the motor 10 is installed. Hereinafter, the axial direction of the rotary shaft 12 is the front-rear direction X of the motor body 16, the horizontal direction orthogonal to the front-rear direction X (the direction parallel to the external member 18) is the left-right direction Y of the motor body 16, and the direction orthogonal to these (external The direction perpendicular to the member 18 will be described as the vertical direction Z of the motor body 16.

モータケーシング１４は、図１に示すように、円筒状のフレーム２２と、フレーム２２の前後両側の開口部を塞ぐ一対のブラケット２４とにより構成される。モータケーシング１４は、アルミ、鋳鉄等の金属製である。回転軸１２は、ブラケット２４に組み付けられる軸受（図示せず）により回転自在に支持される。   As shown in FIG. 1, the motor casing 14 includes a cylindrical frame 22 and a pair of brackets 24 that close the openings on both the front and rear sides of the frame 22. The motor casing 14 is made of metal such as aluminum or cast iron. The rotating shaft 12 is rotatably supported by a bearing (not shown) assembled to the bracket 24.

図３は図２の方向Ｆｖ１から見たフレーム２２の斜視図であり、図４は図２の方向Ｆｖ２から見たフレーム２２の斜視図である。モータケーシング１４は、図２〜図４に示すように、回転軸１２周りに設けられる四つの側面部２６Ａ〜２６Ｄを有する。複数の側面部２６Ａ〜２６Ｄはフレーム２２により構成され、回転軸１２を上下左右の四方から取り囲むように設けられる。複数の側面部２６Ａ〜２６Ｄには、下側面部２６Ａ（第１側面部）と、下側面部２６Ａに対して左右両側に設けられる左側面部２６Ｂ（第２側面部）及び右側面部２６Ｃ（第３側面部）と、下側面部２６Ａとは回転軸１２を挟んだ逆側（上側）に設けられる上側面部２６Ｄ（第４側面部）とが含まれる。下側面部２６Ａ、左側面部２６Ｂ、右側面部２６Ｃのそれぞれには、脚部材２０を固定するための複数の脚固定部２８Ａ〜２８Ｄが設けられる。上側面部２６Ｄには端子箱（図示せず）を取り付けるための座部３０が設けられる。端子箱にはモータに電力を供給するためのケーブルが接続される。   3 is a perspective view of the frame 22 viewed from the direction Fv1 of FIG. 2, and FIG. 4 is a perspective view of the frame 22 viewed from the direction Fv2 of FIG. As shown in FIGS. 2 to 4, the motor casing 14 has four side portions 26 </ b> A to 26 </ b> D provided around the rotation shaft 12. The plurality of side surface portions 26A to 26D are constituted by a frame 22, and are provided so as to surround the rotating shaft 12 from four directions, up, down, left and right. The plurality of side surface portions 26A to 26D include a lower side surface portion 26A (first side surface portion), a left side surface portion 26B (second side surface portion) and a right side surface portion 26C (third surface) provided on the left and right sides with respect to the lower side surface portion 26A. The side surface portion and the lower side surface portion 26 </ b> A include an upper side surface portion 26 </ b> D (fourth side surface portion) provided on the opposite side (upper side) across the rotation shaft 12. Each of the lower side surface portion 26A, the left side surface portion 26B, and the right side surface portion 26C is provided with a plurality of leg fixing portions 28A to 28D for fixing the leg member 20. The upper side surface portion 26D is provided with a seat portion 30 for attaching a terminal box (not shown). A cable for supplying power to the motor is connected to the terminal box.

図４に示すように、下側面部２６Ａの複数の脚固定部２８Ａ〜２８Ｄには、モータケーシング１４の周方向に離れて設けられる第１脚固定部２８Ａ、２８Ｃと、第２脚固定部２８Ｂ、２８Ｄとが含まれる。また、複数の脚固定部２８Ａ〜２８Ｄには、前後方向Ｘに離れて設けられる一対の前側脚固定部２８Ａ、２８Ｂと、一対の後側脚固定部２８Ｃ、２８Ｄとが含まれる。下側面部２６Ａの複数の脚固定部２８Ａ〜２８Ｄはこれら４つを一組として設けられる。他の左側面部２６Ｂ、右側面部２６Ｃも同様に４つを一組とした複数の脚固定部２８Ａ〜２８Ｄが設けられる（図３、図４参照）。つまり、下側面部２６Ａ、左側面部２６Ｂ、右側面部２６Ｃのそれぞれには複数を一単位とする脚固定部２８Ａ〜２８Ｄの組が設けられる。   As shown in FIG. 4, the plurality of leg fixing portions 28 </ b> A to 28 </ b> D of the lower side surface portion 26 </ b> A are provided with first leg fixing portions 28 </ b> A and 28 </ b> C that are provided away from each other in the circumferential direction of the motor casing 14. , 28D. Further, the plurality of leg fixing portions 28A to 28D include a pair of front leg fixing portions 28A and 28B provided apart from each other in the front-rear direction X, and a pair of rear leg fixing portions 28C and 28D. The plurality of leg fixing portions 28A to 28D of the lower side surface portion 26A are provided as a set of these four. Similarly, the other left side surface portion 26B and the right side surface portion 26C are provided with a plurality of leg fixing portions 28A to 28D, each having a set of four (see FIGS. 3 and 4). That is, each of the lower side surface portion 26A, the left side surface portion 26B, and the right side surface portion 26C is provided with a set of leg fixing portions 28A to 28D each having a plurality.

一組の脚固定部２８Ａ〜２８Ｄは、それらが設けられる側面部２６Ａ〜２６Ｃのそれぞれから各側面部２６Ａ〜２６Ｃに垂直な方向に延びるような柱状に形成される。各脚固定部２８Ａ〜２８Ｄは後述する第２ボルト６４用の雌ねじ穴３２を加工可能である。図３、図４に示すように、左側面部２６Ｂ、右側面部２６Ｃの一組の脚固定部２８Ａ〜２８Ｄのうち、前側脚固定部２８Ａ、２８Ｂには予め雌ねじ穴３２が加工される。図４に示すように、下側面部２６Ａの全ての脚固定部２８Ａ〜２８Ｄには予め雌ねじ穴３２が加工される。   The set of leg fixing portions 28A to 28D is formed in a column shape extending from the side surface portions 26A to 26C where they are provided in a direction perpendicular to the side surface portions 26A to 26C. Each leg fixing | fixed part 28A-28D can process the internal thread hole 32 for the 2nd volt | bolt 64 mentioned later. As shown in FIGS. 3 and 4, female screw holes 32 are processed in advance in the front leg fixing portions 28A and 28B among the pair of leg fixing portions 28A to 28D of the left side surface portion 26B and the right side surface portion 26C. As shown in FIG. 4, female screw holes 32 are processed in advance in all the leg fixing portions 28A to 28D of the lower side surface portion 26A.

図１に戻り、モータケーシング１４の前側のブラケット２４から前方に突出する回転軸１２の前端部１２ａには、駆動対象となる相手機械（図示せず）が減速機等の動力伝達装置３４を介して接続される。なお、回転軸１２の前端部には相手機械が直接に接続されてもよい。   Returning to FIG. 1, a counterpart machine (not shown) to be driven is connected to a front end portion 12 a of the rotating shaft 12 protruding forward from a bracket 24 on the front side of the motor casing 14 via a power transmission device 34 such as a speed reducer. Connected. A counterpart machine may be directly connected to the front end of the rotating shaft 12.

モータケーシング１４の後側のブラケット２４から後方に突出する回転軸１２の後端部１２ｂには冷却ファン３６が装着される。モータケーシング１４には冷却ファン３６を覆うファンカバー３８が取り付けられる。ファンカバー３８は有底筒状に形成され、前方に向けて開放する導出口４０を有する。冷却ファン３６は回転軸１２と一体に回転し、その回転により空気流を発生させ、その空気流はファンカバー３８の導出口４０を通して前方に向けて流れる。   A cooling fan 36 is attached to the rear end portion 12 b of the rotating shaft 12 protruding rearward from the bracket 24 on the rear side of the motor casing 14. A fan cover 38 that covers the cooling fan 36 is attached to the motor casing 14. The fan cover 38 is formed in a bottomed cylindrical shape and has a lead-out port 40 that opens forward. The cooling fan 36 rotates integrally with the rotating shaft 12, and an air flow is generated by the rotation. The air flow flows forward through the outlet 40 of the fan cover 38.

モータケーシング１４の各側面部２６Ａ〜２６Ｄの外周面には複数のフィン４２Ａ、４２Ｂが設けられる。各フィン４２Ａ、４２Ｂはモータケーシング１４の各側面部２６Ａ〜２６Ｄのそれぞれに前後方向Ｘに沿って直線状に延びるように設けられる。複数のフィン４２Ａ、４２Ｂには、脚固定部２８Ａ〜２８Ｄに接続され、各側面部２６Ａ〜２６Ｄの周方向に離れて設けられる複数の外側フィン４２Ａと、複数の外側フィン４２Ａ間に設けられる内側フィン４２Ｂとが含まれる。   A plurality of fins 42 </ b> A and 42 </ b> B are provided on the outer peripheral surfaces of the side surface portions 26 </ b> A to 26 </ b> D of the motor casing 14. The fins 42 </ b> A and 42 </ b> B are provided on the side surfaces 26 </ b> A to 26 </ b> D of the motor casing 14 so as to extend linearly along the front-rear direction X. The plurality of fins 42A and 42B are connected to the leg fixing portions 28A to 28D, and are provided between the plurality of outer fins 42A and the plurality of outer fins 42A provided apart from each other in the circumferential direction of the side surface portions 26A to 26D. Fins 42B are included.

図５はモータ本体１６の使用状態の一例を示す側面図である。モータケーシング１４を含むモータ本体１６は、アイボルト等の吊りボルト４４を用いて動力伝達装置３４とともに吊り上げられる場合がある。この場合、左側面部２６Ｂ、右側面部２６Ｃ、下側面部２６Ａの何れかを上向きにした状態で、その上向きの側面部２６Ａ〜２６Ｃに設けられる脚固定部２８Ａ〜２８Ｄの雌ねじ穴３２に吊りボルト４４が螺合される。本図では下側面部２６Ａを上向きにした状態を示す。モータ本体１６や動力伝達装置３４を含む吊り上げ対象物４６は、吊りボルト４４の貫通穴４８に挿通されるワイヤ（図示せず）により吊り上げられる。   FIG. 5 is a side view showing an example of a usage state of the motor body 16. The motor body 16 including the motor casing 14 may be lifted together with the power transmission device 34 using a suspension bolt 44 such as an eye bolt. In this case, with any of the left side surface portion 26B, the right side surface portion 26C, and the lower side surface portion 26A facing upward, the suspension bolt 44 is inserted into the female screw holes 32 of the leg fixing portions 28A to 28D provided on the upward side surface portions 26A to 26C. Are screwed together. This figure shows a state in which the lower side surface portion 26A faces upward. The lifting object 46 including the motor body 16 and the power transmission device 34 is lifted by a wire (not shown) inserted through the through hole 48 of the hanging bolt 44.

モータケーシング１４の各側面部２６Ａ〜２６Ｃそれぞれの一組の脚固定部２８Ａ〜２８Ｄは、このように吊り上げ対象物４６を吊り上げるとき、バランスよく吊り上げられるように、吊り上げ対象物４６での重心に応じた位置に設けられる。なお、モータ本体１６のみを吊り上げ対象物４６として吊り上げる場合もある。この場合、モータケーシング１４の各側面部２６Ａ〜２６Ｃの一組の脚固定部２８Ａ〜２８Ｄは、モータ本体１６での重心に応じた位置に設けられる。   The pair of leg fixing portions 28A to 28D of each side surface portion 26A to 26C of the motor casing 14 according to the center of gravity of the lifting object 46 so that the lifting object 46 can be lifted with good balance when the lifting object 46 is lifted. It is provided at the position. In some cases, only the motor body 16 is lifted as the lifting object 46. In this case, the set of leg fixing portions 28 </ b> A to 28 </ b> D of the side surface portions 26 </ b> A to 26 </ b> C of the motor casing 14 are provided at positions corresponding to the center of gravity of the motor body 16.

図６（ａ）、（ｂ）は脚部材２０の上面図、前面図である。脚部材２０は全体として平板状に形成される。脚部材２０は、アルミ、鋳鉄等の金属製である。脚部材２０は、左右方向Ｙの途中位置に設けられる中間部５０と、中間部５０の左右両側に設けられる一対の厚肉部５２と、一対の厚肉部５２の左右両側に設けられる一対の薄肉部５４とを備える。中間部５０は厚肉部５２より上下方向Ｚの寸法が小さくなる。また、中間部５０のモータケーシング１４に面する側の上側面部は、モータケーシング１４から離れる側（図６（ｂ）中下側）に凹むように形成される。   6A and 6B are a top view and a front view of the leg member 20, respectively. The leg member 20 is formed in a flat plate shape as a whole. The leg member 20 is made of metal such as aluminum or cast iron. The leg member 20 includes an intermediate portion 50 provided at a midway position in the left-right direction Y, a pair of thick portions 52 provided on the left and right sides of the intermediate portion 50, and a pair of left and right sides of the pair of thick portions 52. A thin portion 54. The intermediate portion 50 is smaller in the vertical direction Z than the thick portion 52. Further, the upper side surface portion of the intermediate portion 50 facing the motor casing 14 is formed to be recessed on the side away from the motor casing 14 (lower side in FIG. 6B).

また、脚部材２０は、外部部材１８に固定するための複数の外部固定部５６Ａ〜５６Ｄと、モータケーシング１４に固定される複数の被固定部５８Ａ〜５８Ｄとを有する。複数の外部固定部５６Ａ〜５６Ｄは脚部材２０の薄肉部５４に設けられ、複数の被固定部５８Ａ〜５８Ｄは厚肉部５２に設けられる。   The leg member 20 includes a plurality of external fixing portions 56 </ b> A to 56 </ b> D for fixing to the external member 18 and a plurality of fixed portions 58 </ b> A to 58 </ b> D fixed to the motor casing 14. The plurality of external fixing portions 56 </ b> A to 56 </ b> D are provided in the thin portion 54 of the leg member 20, and the plurality of fixed portions 58 </ b> A to 58 </ b> D are provided in the thick portion 52.

複数の外部固定部５６Ａ〜５６Ｄには、前後方向Ｘに離れて設けられる一対の前側外部固定部５６Ａ、５６Ｂと、一対の後側外部固定部５６Ｃ、５６Ｄとが含まれる。一対の前側外部固定部５６Ａ、５６Ｂのそれぞれは左右方向Ｙに離れて設けられる。一対の後側外部固定部５６Ｃ、５６Ｄのそれぞれも左右方向Ｙに離れて設けられる。   The plurality of external fixing portions 56A to 56D include a pair of front external fixing portions 56A and 56B that are provided apart in the front-rear direction X, and a pair of rear external fixing portions 56C and 56D. Each of the pair of front external fixing portions 56A and 56B is provided apart in the left-right direction Y. Each of the pair of rear external fixing portions 56C and 56D is also provided apart in the left-right direction Y.

各外部固定部５６Ａ〜５６Ｄには第１ボルト６０用の第１挿通孔６２が形成され、第１挿通孔６２には第１ボルト６０が挿通される（図２参照）。各外部固定部５６Ａ〜５６Ｄは外部部材１８の表面に当接された状態で、第１ボルト６０により外部部材１８に締結されることで固定される。   A first insertion hole 62 for the first bolt 60 is formed in each of the external fixing portions 56A to 56D, and the first bolt 60 is inserted through the first insertion hole 62 (see FIG. 2). Each external fixing portion 56 </ b> A to 56 </ b> D is fixed by being fastened to the external member 18 by the first bolt 60 in a state of being in contact with the surface of the external member 18.

複数の被固定部５８Ａ〜５８Ｄは、図示しないが、一組の脚固定部２８Ａ〜２８Ｄのそれぞれに対応する位置に設けられる。複数の被固定部５８Ａ〜５８Ｄには、図６に示すように、前後方向Ｘに離れて設けられる一対の前側被固定部５８Ａ、５８Ｂと、一対の後側被固定部５８Ｃ、５８Ｄとが含まれる。一対の前側被固定部５８Ａ、５８Ｂのそれぞれは左右方向Ｙに離れて設けられる。一対の後側被固定部５８Ｃ、５８Ｄのそれぞれも左右方向Ｙに離れて設けられる。   Although not shown, the plurality of fixed parts 58A to 58D are provided at positions corresponding to each of the pair of leg fixing parts 28A to 28D. As shown in FIG. 6, the plurality of fixed portions 58A to 58D include a pair of front-side fixed portions 58A and 58B that are provided apart in the front-rear direction X, and a pair of rear-side fixed portions 58C and 58D. It is. Each of the pair of front-side fixed portions 58A and 58B is provided apart in the left-right direction Y. Each of the pair of rear-side fixed portions 58C and 58D is also provided apart in the left-right direction Y.

各被固定部５８Ａ〜５８Ｄには第２ボルト６４用の第２挿通孔６６が形成され、第２挿通孔６６には第２ボルト６４が挿通される（図２参照）。各被固定部５８Ａ〜５８Ｄは、モータケーシング１４の脚固定部２８Ａ〜２８Ｄとの間で互いに対向する面同士を当接させた状態で、第２ボルト６４によりモータケーシング１４に締結されることで固定される。第２挿通孔６６には、モータケーシング１４とは反対側（下側）の部位に座ぐり部６８が設けられ、第２ボルト６４の頭部は座ぐり部６８内に収められる。   A second insertion hole 66 for the second bolt 64 is formed in each of the fixed portions 58A to 58D, and the second bolt 64 is inserted into the second insertion hole 66 (see FIG. 2). Each of the fixed portions 58A to 58D is fastened to the motor casing 14 by the second bolt 64 in a state where the surfaces facing each other are in contact with the leg fixing portions 28A to 28D of the motor casing 14. Fixed. The second insertion hole 66 is provided with a counterbore portion 68 at a portion on the opposite side (lower side) from the motor casing 14, and the head of the second bolt 64 is stored in the counterbore portion 68.

以上の脚部材２０は、図１に示すように、モータケーシング１４に所定の向きで固定される。このとき、回転軸１２の前端面から一対の前側外部固定部５６Ａ，５６Ｂまでの前後距離Ｌ１と、回転軸１２の前端面から一対の後側外部固定部５６Ｃ，５６Ｄまでの前後距離Ｌ２とは、ＪＩＳ Ｃ ４２１０等の規格に準拠した所定の大きさとなるように定められる。ここでの前後距離Ｌ１、Ｌ２とは、回転軸１２の前端面から、各外部固定部５６Ａ〜５６Ｄの第１挿通孔６２の中心位置までの前後方向Ｘでの距離である。また、上述のように、一組の脚固定部２８Ａ〜２８Ｄは、吊り上げ対象物４６の重心に応じた位置に設けられる。   The above leg members 20 are fixed to the motor casing 14 in a predetermined direction as shown in FIG. At this time, the front-rear distance L1 from the front end surface of the rotating shaft 12 to the pair of front external fixing portions 56A, 56B and the front-rear distance L2 from the front end surface of the rotating shaft 12 to the pair of rear external fixing portions 56C, 56D are: , And a predetermined size based on a standard such as JIS C 4210. The front-rear distances L1 and L2 here are distances in the front-rear direction X from the front end surface of the rotating shaft 12 to the center position of the first insertion hole 62 of each of the external fixing portions 56A to 56D. Further, as described above, the pair of leg fixing portions 28 </ b> A to 28 </ b> D is provided at a position corresponding to the center of gravity of the lifting object 46.

これらに起因して、複数の外部固定部５６Ａ〜５６Ｄは、図１、図６（ａ）に示すように、モータ本体１６の前後方向Ｘでの一組の脚固定部２８Ａ〜２８Ｄの中心位置Ｃｐに対して、前後方向Ｘに非対称の位置に設けられる。ここでのモータ本体１６の前後方向Ｘでの一組の脚固定部２８Ａ〜２８Ｄの中心位置とは、前側脚固定部２８Ａ、２８Ｂの雌ねじ穴３２の中心位置Ｐａと、後側脚固定部２８Ｃ、２８Ｄの雌ねじ穴３２の中心位置Ｐｂとの前後方向Ｘでの中央位置をいう。前側外部固定部５６Ａ、５６Ｂから中心位置Ｃｐまでの前後距離は後側外部固定部５６Ｃ、５６Ｄから中心位置Ｃｐまでの前後距離より大きくなる。なお、脚部材２０の複数の被固定部５８Ａ〜５８Ｄは中心位置Ｃｐに対して前後方向Ｘに対称の位置に設けられる。   Due to these reasons, the plurality of external fixing portions 56A to 56D are arranged at the center positions of the pair of leg fixing portions 28A to 28D in the front-rear direction X of the motor body 16, as shown in FIGS. It is provided at an asymmetric position in the front-rear direction X with respect to Cp. Here, the center positions of the pair of leg fixing portions 28A to 28D in the front-rear direction X of the motor body 16 are the center position Pa of the female screw holes 32 of the front leg fixing portions 28A and 28B, and the rear leg fixing portion 28C. The center position in the front-rear direction X with the center position Pb of the female screw hole 32 of 28D. The front-rear distance from the front external fixing portions 56A, 56B to the center position Cp is larger than the front-rear distance from the rear external fixing portions 56C, 56D to the center position Cp. The plurality of fixed portions 58A to 58D of the leg member 20 are provided at positions symmetrical in the front-rear direction X with respect to the center position Cp.

図７は脚部材２０とモータ本体１６の一部との位置関係を示す上面図である。本図ではモータ本体１６の一部として、下側面部２６Ａの一組の脚固定部２８Ａ〜２８Ｄ、フィン４２Ａ，４２Ｂの他、ファンカバー３８を示す。また、図８は脚部材２０とモータ本体１６の一部との位置関係を示す図であり、図８（ａ）は図７のＡ１−Ａ１線断面での位置関係を示し、図８（ｂ）は図７のＡ２−Ａ２線断面での位置関係を示し、図８（ｃ）は図８（ａ）の部分拡大図である。   FIG. 7 is a top view showing the positional relationship between the leg member 20 and a part of the motor body 16. In this figure, as a part of the motor main body 16, a set of leg fixing portions 28A to 28D of the lower side surface portion 26A, the fins 42A and 42B, and the fan cover 38 are shown. 8 is a diagram showing the positional relationship between the leg member 20 and a part of the motor main body 16, and FIG. 8A shows the positional relationship in the cross section along line A1-A1 of FIG. ) Shows the positional relationship in the cross section along line A2-A2 of FIG. 7, and FIG. 8 (c) is a partially enlarged view of FIG. 8 (a).

脚部材２０、モータケーシング１４のそれぞれには、モータケーシング１４に所定の向きとは前後逆向きで脚部材２０が固定されるのを防止するための組み違え防止部７０と干渉部７２が設けられる。   Each of the leg member 20 and the motor casing 14 is provided with a combination preventing portion 70 and an interference portion 72 for preventing the leg member 20 from being fixed to the motor casing 14 in a direction reverse to the predetermined direction. .

組み違え防止部７０は、脚部材２０の中間部５０の左右方向Ｙ一方寄り（図８（ａ）中右寄り）の位置に設けられる。組み違え防止部７０はモータケーシング１４側に突出する凸部である。組み違え防止部７０は上下方向Ｚに沿って延びる円柱状に形成されるが、その形状はこれに限られない。組み違え防止部７０は、脚部材２０の被固定部５８Ａ〜５８Ｄにおける脚固定部２８Ａ〜２８Ｄと対向する面５８ａに対してモータケーシング１４に近づく側（上側）に一部が配置される。なお、脚部材２０の中間部５０には組み違え防止部７０と一方の厚肉部５２とを繋ぐ連設部７４が設けられる。   The combination preventing portion 70 is provided at a position closer to one side in the left-right direction Y of the intermediate portion 50 of the leg member 20 (to the right in FIG. 8A). The combination prevention part 70 is a convex part protruding to the motor casing 14 side. Although the misconfiguration prevention part 70 is formed in the column shape extended along the up-down direction Z, the shape is not restricted to this. A part of the combination preventing portion 70 is arranged on the side (upper side) closer to the motor casing 14 with respect to the surface 58a of the fixed portions 58A to 58D of the leg member 20 facing the leg fixing portions 28A to 28D. In addition, the intermediate portion 50 of the leg member 20 is provided with a continuous portion 74 that connects the misconfiguration prevention portion 70 and the one thick portion 52.

干渉部７２は前述した複数の内側フィン４２Ｂである。内側フィン４２Ｂは、前側脚固定部２８Ａ、２８Ｂから内側フィン４２Ｂの一端である前端までの前後距離Ｌａの方が、後側脚固定部２８Ｃ、２８Ｄから内側フィン４２Ｂの他端である後端までの前後距離Ｌｂより小さくなる。   The interference unit 72 is the plurality of inner fins 42B described above. The inner fin 42B has a longitudinal distance La from the front leg fixing portions 28A, 28B to the front end that is one end of the inner fin 42B, from the rear leg fixing portions 28C, 28D to the rear end that is the other end of the inner fin 42B. Becomes smaller than the front-rear distance Lb.

組み違え防止部７０は、図８（ａ）に示すように、モータ本体１６の前後方向Ｘ（前方）から見て、第１脚固定部２８Ａ、２８Ｃと第２脚固定部２８Ｂ、２８Ｄの間に突出するように脚部材２０に設けられる。これにより、組み違え防止部７０は各脚固定部２８Ａ〜２８Ｄより左右方向Ｙの外側に設けるよりも外部への露出を抑えられ、周囲の構造物との干渉を抑え易くなる。   As shown in FIG. 8 (a), the combination preventing portion 70 is formed between the first leg fixing portions 28A and 28C and the second leg fixing portions 28B and 28D when viewed from the front-rear direction X (front) of the motor body 16. It is provided in the leg member 20 so that it may protrude. As a result, the misassembly prevention unit 70 is less exposed to the outside than the leg fixing units 28 </ b> A to 28 </ b> D on the outer side in the left-right direction Y, and it is easier to suppress interference with surrounding structures.

図８（ｃ）に示すように、内側フィン４２Ｂに対して周方向両側には他の内側フィン４２Ｂや外側フィン４２Ａとの間で前後方向Ｘに沿って直線状に風路７６が形成される。風路７６は複数のフィン４２Ａ，４２Ｂ間に形成されることになる。風路７６は冷却ファン３６により生じる空気流を前方に導くために設けられる。   As shown in FIG. 8C, air passages 76 are linearly formed along the front-rear direction X between the other inner fins 42B and the outer fins 42A on both sides in the circumferential direction with respect to the inner fins 42B. . The air passage 76 is formed between the plurality of fins 42A and 42B. The air passage 76 is provided to guide the air flow generated by the cooling fan 36 forward.

組み違え防止部７０は、モータ本体１６の前後方向Ｘ（前方）から見て、複数の風路７６のうちの二つの風路７６のそれぞれの全体と重ならないように設けられる。この組み違え防止部７０は、二つの風路７６のそれぞれに対して、左右方向Ｙ、上下方向Ｚに部分的にのみ重なるように設けられる。つまり、組み違え防止部７０は、二つの風路７６を少なくとも部分的に前後方向Ｘに開放するように設けられる。これにより、冷却ファン３６により生じた空気流が風路７６に沿って前方に流れるとき、組み違え防止部７０により空気流が妨げられ難くなり、組み違え防止部７０による冷却効率の低下を抑えられる。   The combination prevention unit 70 is provided so as not to overlap the entire two air paths 76 of the plurality of air paths 76 when viewed from the front-rear direction X (front) of the motor body 16. The combination prevention unit 70 is provided so as to partially overlap the left and right direction Y and the up and down direction Z with respect to each of the two air paths 76. That is, the misconfiguration prevention unit 70 is provided so as to at least partially open the two air passages 76 in the front-rear direction X. As a result, when the air flow generated by the cooling fan 36 flows forward along the air passage 76, the air flow is hardly obstructed by the mis-combination prevention unit 70, and a decrease in cooling efficiency by the mis-combination prevention unit 70 can be suppressed. .

なお、組み違え防止部７０は、図８（ｂ）に示すように、冷却ファン３６に近い位置にある内側フィン４２Ｂの後端部４２ａではなく、冷却ファン３６より遠い位置にある内側フィン４２Ｂの前端部４２ｂと前後方向Ｘに対向して設けられる。よって、内側フィン４２Ｂの後端部４２ａと前後方向Ｘに対向して設けるよりも、冷却ファン３６により生じた空気流が組み違え防止部７０により妨げられ難くなり、この点でも組み違え防止部７０による冷却効率の低下を抑えられる。   As shown in FIG. 8 (b), the combination prevention unit 70 is not the rear end portion 42 a of the inner fin 42 B located near the cooling fan 36, but the inner fin 42 B located far from the cooling fan 36. It is provided so as to face the front end portion 42b in the front-rear direction X. Therefore, the air flow generated by the cooling fan 36 is less likely to be obstructed by the misconfiguration prevention unit 70 than the rear end portion 42a of the inner fin 42B is opposed to the front-rear direction X. The decrease in cooling efficiency due to can be suppressed.

以上のモータ１０では、図７、図８（ｂ）に示すように、モータケーシング１４に所定の向きで脚部材２０を取り付けるとき、内側フィン４２Ｂの一端部である前端部４２ｂに組み違え防止部７０が接触せず、これらが干渉しない。この結果、図８（ａ）に示すように、モータケーシング１４の脚固定部２８Ａ〜２８Ｄに脚部材２０の被固定部５８Ａ〜５８Ｄを面接触させるように当接でき、第２ボルト６４により両者を安定して締結できる。   In the motor 10 described above, as shown in FIGS. 7 and 8 (b), when the leg member 20 is attached to the motor casing 14 in a predetermined direction, a mis-prevention portion is formed on the front end portion 42b which is one end portion of the inner fin 42B. 70 does not touch and they do not interfere. As a result, as shown in FIG. 8A, the fixed portions 58 </ b> A to 58 </ b> D of the leg member 20 can be brought into surface contact with the leg fixing portions 28 </ b> A to 28 </ b> D of the motor casing 14. Can be fastened.

図９はモータケーシング１４に所定の向きとは前後逆向きで脚部材２０を取り付けようとするときの状態を示す。図９（ａ）は脚部材２０とモータ本体１６の一部との位置関係を示す上面図であり、図９（ｂ）は図９（ａ）の方向Ｆｖ３から見た部分拡大図である。   FIG. 9 shows a state in which the leg member 20 is to be attached to the motor casing 14 in the reverse direction from the predetermined direction. FIG. 9A is a top view showing the positional relationship between the leg member 20 and a part of the motor main body 16, and FIG. 9B is a partially enlarged view seen from the direction Fv3 in FIG. 9A.

このとき、図９（ａ）に示すように、内側フィン４２Ｂの他端部である後端部４２ａに組み違え防止部７０が接触し、これらが干渉する。この結果、図９（ｂ）に示すように、モータケーシング１４の脚固定部２８Ａ〜２８Ｄに脚部材２０の被固定部５８Ａ〜５８Ｄを面接触させるように当接できず、第２ボルト６４により両者を安定して締結できなくなる。   At this time, as shown in FIG. 9 (a), the misassembly prevention unit 70 comes into contact with the rear end portion 42a which is the other end portion of the inner fin 42B, and these interfere with each other. As a result, as shown in FIG. 9B, the fixed portions 58 </ b> A to 58 </ b> D of the leg member 20 cannot be brought into surface contact with the leg fixing portions 28 </ b> A to 28 </ b> D of the motor casing 14. It becomes impossible to conclude both stably.

以上のモータ１０によれば、組み違え防止部７０と、干渉部７２としての内側フィン４２Ｂとがあるため、モータケーシング１４に所定の向きとは前後逆向きで脚部材２０が固定されるのを防止できる。   According to the motor 10 described above, since there are the combination prevention portion 70 and the inner fin 42B as the interference portion 72, the leg member 20 is fixed to the motor casing 14 in the reverse direction from the predetermined direction. Can be prevented.

なお、本実施形態に係るモータ１０は以下の特徴もある。図３、図４に示すように、下側面部２６Ａ、左側面部２６Ｂ、右側面部２６Ｃのそれぞれには、一組の脚固定部２８Ａ〜２８Ｄが設けられ、その一組の脚固定部２８Ａ〜２８Ｄには前側脚固定部２８Ａ、２８Ｂ、後側脚固定部２８Ｃ、２８Ｄが含まれる。このうち、前側脚固定部２８Ａ、２８Ｂには前方に延びる二つの第１外側フィン４２Ａ−ａが接続され、後側脚固定部２８Ｃ、２８Ｄには後方に延びる二つの第２外側フィン４２Ａ−ｂが接続される。また、前側脚固定部２８Ａ、２８Ｂ及び後側脚固定部２８Ｃ、２８Ｄの間には単数の第３外側フィン４２Ａ−ｃが接続される。複数の第１外側フィン４２Ａ−ａ間には第１隙間空間７８が形成され、第１隙間空間７８は前方に開放する。また、複数の第２外側フィン４２Ａ−ｂ間には第２隙間空間８０が形成され、第２隙間空間８０は後方に開放する。   The motor 10 according to the present embodiment also has the following characteristics. As shown in FIGS. 3 and 4, each of the lower side surface portion 26A, the left side surface portion 26B, and the right side surface portion 26C is provided with a set of leg fixing portions 28A to 28D, and the set of leg fixing portions 28A to 28D. Includes front leg fixing portions 28A and 28B and rear leg fixing portions 28C and 28D. Among these, two first outer fins 42A-a extending forward are connected to the front leg fixing portions 28A, 28B, and two second outer fins 42A-b extending rearward are connected to the rear leg fixing portions 28C, 28D. Is connected. A single third outer fin 42A-c is connected between the front leg fixing portions 28A and 28B and the rear leg fixing portions 28C and 28D. A first gap space 78 is formed between the plurality of first outer fins 42A-a, and the first gap space 78 opens forward. A second gap space 80 is formed between the plurality of second outer fins 42A-b, and the second gap space 80 opens rearward.

以上のモータ本体１６は、端子箱に接続されるケーブルや、外部部材１８に対する据付位置との関係で、端子箱が取り付けられる座部３０を上向き、右向き、左向きの何れかの向きにした状態で据え付けられる場合がある。このとき、たとえば、右側面部２６Ｃ（図４参照）を下向きにした状態でモータ本体１６を据え付けると、モータケーシング１４の左側面部２６Ｂが上向きの状態になる。   The motor body 16 described above is in a state in which the seat portion 30 to which the terminal box is attached is directed upward, rightward, or leftward in relation to the cable connected to the terminal box and the installation position with respect to the external member 18. May be installed. At this time, for example, when the motor main body 16 is installed with the right side surface portion 26C (see FIG. 4) facing downward, the left side surface portion 26B of the motor casing 14 is directed upward.

ここで、前側脚固定部２８Ａ、２８Ｂ及び後側脚固定部２８Ｃ、２８Ｄの間に複数のフィンが接続されると、複数のフィンと各脚固定部２８Ａ〜２８Ｄにより囲まれる隙間空間に水が貯まり易くなってしまう。この点、本実施形態のモータ１０によれば、前側脚固定部２８Ａ、２８Ｂ及び後側脚固定部２８Ｃ、２８Ｄの間に単数の第３外側フィン４２Ａ−ｃが設けられるため、第３外側フィン４２Ａ−ｃの側方が開放され、そのような隙間空間が形成されず、水を貯まり難くできる利点がある。   Here, when a plurality of fins are connected between the front leg fixing portions 28A and 28B and the rear leg fixing portions 28C and 28D, water is introduced into a gap space surrounded by the plurality of fins and the leg fixing portions 28A to 28D. It becomes easy to accumulate. In this regard, according to the motor 10 of the present embodiment, the single third outer fin 42A-c is provided between the front leg fixing portions 28A and 28B and the rear leg fixing portions 28C and 28D. The sides of 42A-c are opened, such a gap space is not formed, and there is an advantage that it is difficult to store water.

なお、複数の第１外側フィン４２Ａ−ａ間に形成される第１隙間空間７８は前方に開放するため、その第１隙間空間７８に入る水は前方から排出される。同様に、複数の第２外側フィン４２Ａ−ｂ間に形成される第２隙間空間８０は後方に開放するため、その第２隙間空間８０に入る水は後方から排出される。   In addition, since the 1st clearance gap 78 formed between several 1st outer side fins 42A-a opens ahead, the water which enters the 1st clearance gap 78 is discharged | emitted from the front. Similarly, since the second gap space 80 formed between the plurality of second outer fins 42A-b opens rearward, the water entering the second gap space 80 is discharged from the rear.

ちなみに、同様の効果を得るうえで、一組の脚固定部２８Ａ〜２８Ｄは、モータケーシング１４に設けられる複数の側面部２６Ａ〜２６Ｄのうちの二つ以上の側面部に設けられていればよい。   Incidentally, in order to obtain the same effect, the pair of leg fixing portions 28 </ b> A to 28 </ b> D may be provided on two or more side portions of the plurality of side portions 26 </ b> A to 26 </ b> D provided on the motor casing 14. .

以上、実施の形態に基づき本発明を説明したが、実施の形態は、本発明の原理、応用を示すにすぎない。また、実施の形態には、請求の範囲に規定された本発明の思想を逸脱しない範囲において、多くの変形例や配置の変更が可能である。   As mentioned above, although this invention was demonstrated based on embodiment, embodiment only shows the principle and application of this invention. In the embodiment, many modifications and arrangements can be made without departing from the spirit of the present invention defined in the claims.

実施形態では脚部材２０に組み違え防止部７０が設けられ、モータケーシング１４に干渉部７２として内側フィン４２Ｂが設けられる例を説明した。干渉部７２は内側フィン４２Ｂに限られず、たとえば、フィン４２Ａ、４２Ｂとは別にモータケーシング１４に設けた凸部等で構成されてもよい。   In the embodiment, an example has been described in which the leg member 20 is provided with the combination prevention portion 70 and the motor casing 14 is provided with the inner fin 42B as the interference portion 72. The interference part 72 is not limited to the inner fins 42B, and may be constituted by, for example, a convex part provided on the motor casing 14 separately from the fins 42A and 42B.

図１０（ａ）は変形例に係る組み違え防止部７０と干渉部７２を示す側面断面図である。組み違え防止部７０は脚部材２０ではなくモータケーシング１４に設けられる。詳細には、組み違え防止部７０は、側面部２６Ａ〜２６Ｃの一組の脚固定部２８Ａ〜２８Ｄのうちの一つの脚固定部２８Ａの先端面に設けられる。組み違え防止部７０は脚部材２０に近づく側に突出する凸部である。干渉部７２は、モータケーシング１４ではなく脚部材２０の被固定部５８Ｄ（図１０（ｃ）参照）である。   FIG. 10A is a side cross-sectional view showing a misconfiguration prevention unit 70 and an interference unit 72 according to a modification. The combination preventing portion 70 is provided not on the leg member 20 but on the motor casing 14. In detail, the combination prevention part 70 is provided in the front end surface of one leg fixing | fixed part 28A of one set of leg fixing | fixed part 28A-28D of side part 26A-26C. The combination prevention part 70 is a convex part protruding toward the side approaching the leg member 20. The interference part 72 is not the motor casing 14 but the fixed part 58D of the leg member 20 (see FIG. 10C).

脚部材２０には、図１０（ａ）、（ｂ）に示すように、モータケーシング１４に所定の向きで脚部材２０を取り付けるとき、モータケーシング１４の組み違え防止部７０が干渉しないように、組み違え防止部７０が嵌合される凹部８２が形成される。この凹部８２は、組み違え防止部７０が設けられる脚固定部２８Ａが固定される被固定部５８Ａに形成され、他の被固定部５８Ｂ〜５８Ｄには形成されない。図１０（ｃ）に示すように、モータケーシング１４に所定の向きとは前後逆向きで脚部材２０を取り付けようとするとき、組み違え防止部７０が被固定部５８Ｄと接触して干渉する。以上のように、モータケーシング１４及び脚部材２０の何れか一方に組み違え防止部７０が設けられ、他方に干渉部７２が設けられていればよい。   As shown in FIGS. 10 (a) and 10 (b), when the leg member 20 is attached to the motor casing 14 in a predetermined direction on the leg member 20, so that the combination prevention portion 70 of the motor casing 14 does not interfere. A recess 82 into which the misassembly prevention unit 70 is fitted is formed. The concave portion 82 is formed in the fixed portion 58A to which the leg fixing portion 28A provided with the combination preventing portion 70 is fixed, and is not formed in the other fixed portions 58B to 58D. As shown in FIG. 10 (c), when the leg member 20 is to be attached to the motor casing 14 in the direction opposite to the predetermined direction, the misassembly prevention unit 70 contacts and interferes with the fixed portion 58D. As described above, it is only necessary that the misassembly prevention unit 70 is provided in one of the motor casing 14 and the leg member 20 and the interference unit 72 is provided in the other.

また、一組の脚固定部２８Ａ〜２８Ｄの数は特に限られず、単数でもよいし複数でもよい。モータケーシング１４の各側面部２６Ａ〜２６Ｃそれぞれに複数の脚固定部が設けられる場合、「脚固定部の中心位置」とは、最も前側の脚固定部の（雌ねじ穴３２の）中心位置と、最も後側の脚固定部の（雌ねじ穴３２の）中心位置との前後方向Ｘでの中央位置となる。また、この場合、フィンに関して「脚固定部から一端までの前後距離」とは、最も前側及び後側の脚固定部の何れか一方の（雌ねじ穴３２の）中心位置からフィンの一端までの前後方向Ｘでの距離をいう。また、「脚固定部から他端までの前後距離」とは、最も前側及び後側の被固定部の他方の（雌ねじ穴３２の）中心位置からフィンの他端までの前後方向Ｘでの距離をいう。   The number of the set of leg fixing portions 28A to 28D is not particularly limited, and may be one or more. When a plurality of leg fixing portions are provided on each of the side surface portions 26A to 26C of the motor casing 14, the “center position of the leg fixing portion” refers to the center position (of the female screw hole 32) of the frontmost leg fixing portion; This is the center position in the front-rear direction X with the center position (of the female screw hole 32) of the rearmost leg fixing portion. In this case, the “front-rear distance from the leg fixing part to one end” with respect to the fin is the front-rear distance from the center position (of the female screw hole 32) of one of the front and rear leg fixing parts to one end of the fin. The distance in the direction X. The “front-rear distance from the leg fixing part to the other end” means the distance in the front-rear direction X from the other center position (of the female screw hole 32) of the front and rear fixed parts to the other end of the fin. Say.

また、モータケーシング１４の各側面部２６Ａ〜２６Ｃそれぞれに単数の脚固定部が設けられる場合、「脚固定部の中心位置」とは、その脚固定部の（雌ねじ穴３２の）中心位置となる。また、この場合、フィンに関して「脚固定部から一端までの前後距離」とは、その脚固定部の（雌ねじ穴３２の）中心位置からフィンの一端までの前後方向Ｘでの距離をいい、「脚固定部から他端までの前後距離」とは、その脚固定部の（雌ねじ穴３２の）中心位置からフィンの他端までの前後方向Ｘでの距離をいう。なお、左右方向Ｙに離れた複数の脚固定部を一単位とする脚固定部の組のみが設けられる場合も同様である。   When a single leg fixing portion is provided on each of the side surface portions 26A to 26C of the motor casing 14, the “center position of the leg fixing portion” is the center position (of the female screw hole 32) of the leg fixing portion. . In this case, the “front-rear distance from the leg fixing part to one end” with respect to the fin means a distance in the front-rear direction X from the center position (of the female screw hole 32) of the leg fixing part to one end of the fin. The “front-rear distance from the leg fixing part to the other end” means a distance in the front-rear direction X from the center position (of the female screw hole 32) of the leg fixing part to the other end of the fin. The same applies to the case where only a set of leg fixing portions each having a plurality of leg fixing portions separated in the left-right direction Y as a unit is provided.

１０…モータ、１４…モータケーシング、１６…モータ本体、１８…外部部材、２０…脚部材、２８Ａ〜２８Ｄ…脚固定部、４２Ａ、４２Ｂ…フィン、５６Ａ〜５６Ｄ…外部固定部、７０…組み違え防止部、７２…干渉部、７６…風路。 DESCRIPTION OF SYMBOLS 10 ... Motor, 14 ... Motor casing, 16 ... Motor main body, 18 ... External member, 20 ... Leg member, 28A-28D ... Leg fixing part, 42A, 42B ... Fin, 56A-56D ... External fixing part, 70 ... Misassembly Prevention part, 72 ... interference part, 76 ... air path.

Claims (6)

モータケーシングを有するモータ本体と、
前記モータ本体を外部部材に据え付けるための脚部材と、を備え、
前記モータケーシングは、前記脚部材が固定される脚固定部を有し、
前記脚部材は、前記外部部材に固定するための外部固定部を有し、
前記外部固定部は、前記モータ本体の前後方向での前記脚固定部の中心位置に対して前後方向に非対称の位置に設けられ、
前記モータケーシング及び前記脚部材の何れか一方には組み違え防止部が設けられ、他方には干渉部が設けられ、
前記モータケーシングに所定の向きで前記脚部材を取り付けるとき、前記組み違え防止部と前記干渉部が干渉せず、前記モータケーシングに前記所定の向きとは前後逆向きで前記脚部材を取り付けようとするとき、前記組み違え防止部と前記干渉部が干渉することを特徴とするモータ。 A motor body having a motor casing;
A leg member for mounting the motor body on an external member,
The motor casing has a leg fixing portion to which the leg member is fixed,
The leg member has an external fixing portion for fixing to the external member,
The external fixing portion is provided at an asymmetrical position in the front-rear direction with respect to the center position of the leg fixing portion in the front-rear direction of the motor body,
Either one of the motor casing and the leg member is provided with a misassembly prevention portion, and the other is provided with an interference portion.
When the leg member is attached to the motor casing in a predetermined direction, the combination preventing portion and the interference portion do not interfere with each other, and the leg member is attached to the motor casing in a direction opposite to the predetermined direction. In this case, the motor is characterized in that the combination preventing portion interferes with the interference portion. 前記組み違え防止部は、前記脚部材に設けられ、
前記干渉部は、前記モータケーシングの外周面に設けられるフィンであり、
前記フィンは、前記脚固定部から該フィンの一端までの前後距離の方が、前記脚固定部から該フィンの他端までの前後距離より小さく、
前記モータケーシングに所定の向きで前記脚部材を取り付けるとき、前記組み違え防止部と前記フィンの一端部が干渉せず、前記モータケーシングに前記所定の向きとは前後逆向きで前記脚部材を取り付けようとするとき、前記組み違え防止部と前記フィンの他端部が干渉することを特徴とする請求項１に記載のモータ。 The combination prevention portion is provided on the leg member,
The interference portion is a fin provided on the outer peripheral surface of the motor casing,
In the fin, the front-rear distance from the leg fixing part to one end of the fin is smaller than the front-rear distance from the leg fixing part to the other end of the fin,
When the leg member is attached to the motor casing in a predetermined direction, the combination prevention portion and one end of the fin do not interfere with each other, and the leg member is attached to the motor casing in a direction opposite to the predetermined direction. 2. The motor according to claim 1, wherein, when trying to do so, the combination preventing portion interferes with the other end of the fin. 前記脚固定部は、前後方向に離れた前側脚固定部と後側脚固定部とを有し、
前記フィンは、前記前側脚固定部から該フィンの一端までの前後距離の方が、前記後側脚固定部から該フィンの他端までの前後距離より小さいことを特徴とする請求項２に記載のモータ。 The leg fixing part has a front leg fixing part and a rear leg fixing part separated in the front-rear direction,
3. The fin according to claim 2, wherein a front-rear distance from the front leg fixing part to one end of the fin is smaller than a front-rear distance from the rear leg fixing part to the other end of the fin. Motor. 前記組み違え防止部は、前記モータ本体の前方から見て、複数のフィン間に形成される風路の全体と重ならないように設けられることを特徴とする請求項２または３に記載のモータ。   4. The motor according to claim 2, wherein the combination prevention unit is provided so as not to overlap with an entire air path formed between the plurality of fins when viewed from the front of the motor main body. 前記脚固定部は、前記モータケーシングの周方向に離れた第１脚固定部と第２脚固定部とを有し、
前記組み違え防止部は、前記モータ本体の前方から見て、前記第１脚固定部と前記第２脚固定部との間に突出するように前記脚部材に設けられることを特徴とする請求項１から４のいずれかに記載のモータ。 The leg fixing part has a first leg fixing part and a second leg fixing part which are separated in a circumferential direction of the motor casing,
The said combination prevention part is provided in the said leg member so that it may protrude between the said 1st leg fixing | fixed part and the said 2nd leg fixing | fixed part seeing from the front of the said motor main body. The motor according to any one of 1 to 4. 前記モータケーシングには複数の側面部が設けられ、
前記脚固定部は、前記複数の側面部のうちの二つ以上の側面部に設けられ、
前記脚固定部は、前後方向に離れた前側脚固定部と後側脚固定部とを有し、
前記前側脚固定部には前方に延びる複数の第１フィンが接続され、
前記後側脚固定部には後方に延びる複数の第２フィンが接続され、
前記前側脚固定部及び前記後側脚固定部の間には前後方向に延びる単数の第３フィンが設けられることを特徴とする請求項１から５のいずれかに記載のモータ。 The motor casing is provided with a plurality of side portions,
The leg fixing portion is provided on two or more side portions of the plurality of side portions,
The leg fixing part has a front leg fixing part and a rear leg fixing part separated in the front-rear direction,
A plurality of first fins extending forward are connected to the front leg fixing portion,
A plurality of second fins extending rearward are connected to the rear leg fixing portion,
6. The motor according to claim 1, wherein a single third fin extending in the front-rear direction is provided between the front leg fixing part and the rear leg fixing part.
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