JP2002078273A - Fixing structure of resin cover - Google Patents
Fixing structure of resin coverInfo
- Publication number
- JP2002078273A JP2002078273A JP2000260380A JP2000260380A JP2002078273A JP 2002078273 A JP2002078273 A JP 2002078273A JP 2000260380 A JP2000260380 A JP 2000260380A JP 2000260380 A JP2000260380 A JP 2000260380A JP 2002078273 A JP2002078273 A JP 2002078273A
- Authority
- JP
- Japan
- Prior art keywords
- mounting
- resin cover
- hole
- cover
- protected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011347 resin Substances 0.000 title claims abstract description 52
- 229920005989 resin Polymers 0.000 title claims abstract description 52
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000035882 stress Effects 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- 101000604592 Homo sapiens Keratin-like protein KRT222 Proteins 0.000 description 1
- 102100038184 Keratin-like protein KRT222 Human genes 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Connection Of Plates (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アウターロータの
ブラシレスＤＣモータの電機部や、モータの回転を検出
するロータリーエンコーダのセンサー部等の被保護機器
を覆って機械的に保護する樹脂カバーの取付構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the mounting of a resin cover for mechanically protecting a device to be protected, such as an electric part of a brushless DC motor of an outer rotor and a sensor part of a rotary encoder for detecting rotation of the motor. Regarding the structure.
【０００２】[0002]
【従来の技術】従来、この種の樹脂カバーを被保護機器
に取り付ける際には、タッピングねじを保護カバーの貫
通穴を介して被保護機器側に形成された取付穴にねじ込
むことにより固定する方法、あるいは、取付ねじに接着
剤を塗布して固定する方法が用いられている。2. Description of the Related Art Conventionally, when attaching a resin cover of this type to a device to be protected, a method of fixing the resin cover by screwing a tapping screw into a mounting hole formed on the device to be protected through a through hole of the protective cover. Alternatively, a method of applying an adhesive to the mounting screw and fixing the mounting screw is used.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の取付構造では、接着した場合には自由に取り外
しができず、接着しない場合にもタッピングねじを利用
しているために何度も取り外し、取り付けを繰り返す
と、取付穴のねじ山がつぶれて固定できなくなる。従っ
て、樹脂カバーを取り付けるねじとは別に、さらに被保
護機器を取り付けるねじが必要となり、被保護機器の小
型化が困難となるという問題点があった。However, in the above-described conventional mounting structure, when it is bonded, it cannot be removed freely, and when it is not bonded, it is removed many times because a tapping screw is used. If the mounting is repeated, the thread of the mounting hole will be crushed and cannot be fixed. Therefore, in addition to the screw for attaching the resin cover, a screw for attaching the device to be protected is required, and there is a problem that it is difficult to reduce the size of the device to be protected.
【０００４】また、樹脂カバーを変形させない程度の通
常の締め付けでは、樹脂カバーが温度変化等により変形
した場合に発生するガタツキを防ぐことができず、ガタ
ツキを防ぐために強く締め付けると、経年変化で樹脂カ
バーが割れるという問題点があった。また、樹脂カバー
の変形によりねじがゆるむという問題点があった。[0004] In addition, with ordinary tightening that does not deform the resin cover, rattling that occurs when the resin cover is deformed due to a temperature change or the like cannot be prevented. There was a problem that the cover cracked. There is also a problem that the screws are loosened due to the deformation of the resin cover.
【０００５】本発明は、上述した従来技術の問題点（課
題）を解決するもので、樹脂カバーの取り外し、取り付
けを繰り返した場合にも不具合がなく、かつ、樹脂カバ
ーが割れるのを防ぎつつ変形によるガタツキの発生及び
ねじのゆるみを防ぐことができる樹脂カバーの取付構造
を提供することを目的とする。The present invention solves the above-mentioned problems (problems) of the prior art, and has no problems even when the resin cover is repeatedly removed and attached, and is deformed while preventing the resin cover from breaking. It is an object of the present invention to provide a resin cover mounting structure capable of preventing the occurrence of rattling and loosening of screws due to the above.
【０００６】[0006]
【課題を解決するための手段】本発明にかかる樹脂カバ
ーの取付構造は、上記の目的を達成させるため、被保護
機器に形成された取付穴の周囲に、樹脂カバー側に突出
して樹脂カバーの貫通穴を貫通するボス部を形成し、貫
通穴の周囲に、取付穴とは反対側に突出する小突起を少
なくとも１つ形成したことを特徴とする。取り付け時に
は、貫通穴と取付穴とを位置合わせし、ボス部を貫通穴
に挿入した状態で貫通穴側から取付ねじを挿入して取付
穴に対して締め付けることにより、取付ねじの頭部で小
突起を圧縮変形させて樹脂カバーを被保護機器に取り付
ける。In order to achieve the above object, a resin cover mounting structure according to the present invention protrudes toward a resin cover side around a mounting hole formed in a device to be protected. A boss portion penetrating the through hole is formed, and at least one small protrusion protruding on the side opposite to the mounting hole is formed around the through hole. When mounting, align the through hole with the mounting hole, insert the mounting screw from the through hole side with the boss part inserted in the through hole, and tighten the mounting hole, so that the head of the mounting screw is small. The resin cover is attached to the protected device by compressively deforming the projection.
【０００７】上記の構成によれは、締め付け時に小突起
を圧縮変形させることにより、小突起に応力を発生さ
せ、樹脂カバーを被保護機器に強固に固定することがで
き、樹脂カバーが変形した場合にも、ガタツキの発生及
びねじのゆるみを防ぐことができる。小突起は、その外
周より一段取付穴側に落ち込む凹所に形成することが望
ましい。また、取付ねじは、座金を介して取り付けても
よい。被保護機器は、アウターロータモータの電機部、
あるいは、ロータリーエンコーダのセンサー部とするこ
とができる。According to the above configuration, the small projections are compressed and deformed at the time of tightening, so that stress is generated in the small projections, and the resin cover can be firmly fixed to the device to be protected. In addition, it is possible to prevent rattling and loosening of the screw. It is desirable that the small protrusion is formed in a recess that falls from the outer periphery to the one-stage mounting hole side. Further, the mounting screw may be mounted via a washer. The equipment to be protected is the electrical part of the outer rotor motor,
Alternatively, it can be a sensor part of a rotary encoder.
【０００８】[0008]
【発明の実施の形態】以下、本発明にかかる樹脂カバー
の取付構造の第１及び第２の実施の形態を２例説明す
る。 第１の実施の形態：図１乃至図３は、被保護機器がアウ
ターロータモータの電機部である第１の実施の形態を示
し、図１は保護カバーとアウターロータモータとを分離
して示す分解斜視図、図２（Ａ）、（Ｂ）は夫々樹脂カ
バーの取付構造の詳細を示す断面図、図３は図１に示す
アウターロータモータの内部構造を示す断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Two examples of first and second embodiments of a resin cover mounting structure according to the present invention will be described below. First Embodiment: FIGS. 1 to 3 show a first embodiment in which a device to be protected is an electric part of an outer rotor motor, and FIG. 1 shows a protective cover and an outer rotor motor separately. 2 (A) and 2 (B) are sectional views showing details of the mounting structure of the resin cover, and FIG. 3 is a sectional view showing the internal structure of the outer rotor motor shown in FIG.
【０００９】アウターロータモータ１０の電機部(ロー
タ１１およびステータ(後述する))は、図１に示すよう
に、カップ状の樹脂カバー２０を取り付けることにより
保護される。アウターロータモータ１０は、回転軸(後
述する)に固定されたロータ１１と、このロータ１１を
回転自在に支持する金属製の前カバー１２とを備えてい
る。前カバー１２には、外方に延びる矩形板状のフラン
ジ部１２ａが形成されており、その一辺には外部リード
をモータのコイルに接続するためのコネクター１３が設
けられ、四隅には取付穴１４が形成されている。各取付
穴１４の周囲には、樹脂カバー２０側に突出する円筒状
のボス部１４ａが形成されている。As shown in FIG. 1, the electric part (rotor 11 and stator (described later)) of the outer rotor motor 10 is protected by attaching a cup-shaped resin cover 20. The outer rotor motor 10 includes a rotor 11 fixed to a rotating shaft (described later), and a metal front cover 12 that rotatably supports the rotor 11. An outwardly extending rectangular plate-like flange portion 12a is formed on the front cover 12, and a connector 13 for connecting an external lead to a motor coil is provided on one side thereof, and mounting holes 14 are provided at four corners. Are formed. Around each mounting hole 14, a cylindrical boss 14a protruding toward the resin cover 20 is formed.
【００１０】樹脂カバー２０は、有底の八角柱状であ
り、開口側の一辺にはコネクター１３を覆うコネクター
カバー２１が形成され、四隅には外方に延びるフランジ
部２２が形成されている。各フランジ部２２には、貫通
穴２３が形成されている。貫通穴２３の周囲には、取付
穴１４とは反対側に突出する小突起２４が１８０度間隔
で２つ形成されている。小突起２４は、その外周より一
段取付穴側に落ち込む凹所２５に形成されている。The resin cover 20 has a bottomed octagonal column shape. A connector cover 21 that covers the connector 13 is formed on one side of the opening side, and outwardly extending flange portions 22 are formed at four corners. Each flange portion 22 has a through hole 23 formed therein. Around the through hole 23, two small projections 24 projecting to the opposite side to the mounting hole 14 are formed at an interval of 180 degrees. The small projection 24 is formed in a recess 25 that falls from the outer periphery to the one-stage mounting hole side.
【００１１】取り付け時には、樹脂カバー２０の貫通穴
２３とアウターロータモータ１０の取付穴１４とを位置
合わせし、ボス部１４ａを貫通穴２３に挿入した状態で
ワッシャー３１、平座金３２を通して貫通穴２３側から
取付ねじ３０を挿入し、取付穴１４と共にねじが切られ
た取付板（前カバー１２の下方のモータに対向して配置
される）に対して締め付ける。At the time of mounting, the through hole 23 of the resin cover 20 and the mounting hole 14 of the outer rotor motor 10 are aligned, and the boss 14a is inserted into the through hole 23, and the through hole 23 is passed through the washer 31 and the flat washer 32. The mounting screw 30 is inserted from the side, and tightened together with the mounting hole 14 on the threaded mounting plate (disposed facing the motor below the front cover 12).
【００１２】締め付け前の状態では、図２(A)に示すよ
うに、小突起２４の高さは凹所２５より外側の部分と一
致する。なお、ボス部１４ａと小突起２４との関係は、
ボス部１４ａを貫通穴２３に挿入すると、ボス部１４ａ
の先端は凹所２５より高くなり、かつ、小突起２４より
低い位置となるように形成する。In the state before the tightening, the height of the small projection 24 coincides with the portion outside the recess 25 as shown in FIG. The relationship between the boss 14a and the small projection 24 is as follows.
When the boss 14a is inserted into the through hole 23, the boss 14a
Is formed to be higher than the recess 25 and lower than the small protrusion 24.
【００１３】ここで取付ねじ３０を締め付けると、取付
ねじ３０の頭部３０ａがワッシャー３１、平座金３２を
介して小突起２４を押圧し、小突起２４は圧縮変形す
る。図２(B)に示すように、平座金３２がボス部１４ａ
に当接するまで取付ねじ３０を締め付ける。小突起２４
は潰れて取付ねじ３０に対して貫通穴２３から抜け出る
方向の応力を発生させ、これにより、樹脂カバー２０が
変形した場合にも、ガタツキの発生及びねじのゆるみを
防ぐことができる。When the mounting screw 30 is tightened, the head 30a of the mounting screw 30 presses the small projection 24 via the washer 31 and the flat washer 32, and the small projection 24 is compressed and deformed. As shown in FIG. 2 (B), the flat washer 32 is
Tighten the mounting screw 30 until it comes into contact with. Small protrusion 24
When the resin cover 20 is deformed, it is possible to prevent rattling and loosening of the screw even when the resin cover 20 is deformed.
【００１４】また、変形による応力がかかるのは、主と
して小突起２４とその周辺の限定された狭い領域のみと
なるため、経年変化により樹脂カバー２０が割れること
もない。さらに、取付ねじ３０は、取付板（図示せず）
にあらかじめ形成されたねじ溝に螺合するため、取り外
し、取り付けを繰り返してもねじ山が潰れることはな
く、必要に応じて何度でも取り外し、取り付けを繰り返
すことができる。Further, since the stress due to the deformation is mainly applied only to the small projection 24 and a limited narrow area around the small projection 24, the resin cover 20 does not crack due to aging. Further, the mounting screw 30 is attached to a mounting plate (not shown).
Since the screw thread is screwed into the thread groove formed in advance, the screw thread does not collapse even if the removal and the attachment are repeated, and the removal and the attachment can be repeated as many times as necessary.
【００１５】次に、図３に基づいて本発明の適用例とし
てのアウターロータモータ１０の内部構造について説明
する。このモータは、アウターロータのＤＣブラシレス
モータである。ロータ１１は、カップ状であり、円筒状
の周壁の内面にはマグネット１１ａが固定されている。
ロータ１１は、底壁の中央で回転軸１７に結合してお
り、この回転軸１７は、前カバー１２に形成された円筒
状の軸支持部１２ｂの内側前後２カ所でボールベアリン
グ１２ｃを介して支持されている。Next, an internal structure of the outer rotor motor 10 as an application example of the present invention will be described with reference to FIG. This motor is an outer rotor DC brushless motor. The rotor 11 has a cup shape, and a magnet 11a is fixed to an inner surface of a cylindrical peripheral wall.
The rotor 11 is connected to a rotating shaft 17 at the center of the bottom wall, and the rotating shaft 17 is provided via ball bearings 12c at two front and rear positions inside a cylindrical shaft support portion 12b formed on the front cover 12. Supported.
【００１６】軸支持部１２ｂの外側には、ステータコア
１８が固定されており、その周囲にはコイル１８ａが巻
回されている。そして、このコイル１８ａを制御するた
めの電子部品が搭載されたプリント基板１９が、前カバ
ー１２のフランジ部１２ａにロータ１１側からねじ止め
固定されている。前述のコネクター１３は、プリント基
板１９上に取り付けられている。A stator core 18 is fixed outside the shaft support portion 12b, and a coil 18a is wound therearound. A printed circuit board 19 on which electronic components for controlling the coil 18a are mounted is fixed to the flange 12a of the front cover 12 by screws from the rotor 11 side. The above-described connector 13 is mounted on a printed circuit board 19.
【００１７】上記のように構成されたアウターロータモ
ータ１０においては、外側に位置するロータ１１が回転
軸１７と共に回転するため、ロータ１１と外部との接触
を避ける必要がある。そこで、このロータ１１を外側か
ら覆って樹脂カバー２０が取り付けられており、その取
り付けに図１および図２に示すような取付構造を採用し
ている。In the outer rotor motor 10 configured as described above, since the outer rotor 11 rotates together with the rotary shaft 17, it is necessary to avoid contact between the rotor 11 and the outside. Therefore, a resin cover 20 is attached so as to cover the rotor 11 from outside, and an attachment structure as shown in FIGS. 1 and 2 is employed for the attachment.
【００１８】第２の実施の形態：図４および図５は、被
保護機器がロータリーエンコーダのセンサー部である本
発明の第２の実施の形態を示し、図４はモータ装置の一
部を破断して示す側面図、図５は取付構造の拡大断面図
である。Second Embodiment FIGS. 4 and 5 show a second embodiment of the present invention in which the device to be protected is a sensor part of a rotary encoder, and FIG. FIG. 5 is an enlarged sectional view of the mounting structure.
【００１９】図４のモータ装置は、図中左側に位置する
インナーロータモータ４０と、その図中右側に連結され
たロータリーエンコーダ５０とから構成されている。イ
ンナーロータモータ４０は、回転軸４１に接続されて周
囲に磁石４２ａが取り付けられたロータ４２と、ロータ
４２の図中左右両側でボールベアリング４３を介して回
転軸４１をそれぞれ支持する前カバー４４および後カバ
ー４５と、これらのカバーの中間に位置してロータ４２
を外側から覆うステータコア４６とを備えている。ステ
ータコア４６の周囲には、三相コイル４７が巻回されて
いる。The motor device shown in FIG. 4 includes an inner rotor motor 40 located on the left side in the figure and a rotary encoder 50 connected to the right side in the figure. The inner rotor motor 40 includes a rotor 42 connected to the rotating shaft 41 and having a magnet 42a mounted therearound, a front cover 44 that supports the rotating shaft 41 via ball bearings 43 on both right and left sides of the rotor 42 in the drawing, and A rear cover 45 and a rotor 42 located in the middle of these covers
And a stator core 46 that covers the outside from outside. A three-phase coil 47 is wound around the stator core 46.
【００２０】一方、ロータリーエンコーダ５０は、イン
ナーロータモータ４０の回転軸４１とは反対側、図中の
右側に突出するセンサー用回転軸４８に接続されたセン
サー部５１を備えており、その周囲がカップ状の樹脂製
のエンコーダカバー５２により覆われている。上記のよ
うに構成されたロータリーエンコーダ５０においては、
センサー部５１が回転軸と共に回転するため、センサー
部５１と外部との接触を避ける必要がある。そこで、こ
のセンサー部５１を外側から覆ってエンコーダカバー５
２が取り付けられている。On the other hand, the rotary encoder 50 has a sensor portion 51 connected to a sensor rotation shaft 48 projecting to the right side in the drawing opposite to the rotation shaft 41 of the inner rotor motor 40. It is covered by a cup-shaped resin encoder cover 52. In the rotary encoder 50 configured as described above,
Since the sensor unit 51 rotates together with the rotation axis, it is necessary to avoid contact between the sensor unit 51 and the outside. Therefore, the sensor unit 51 is covered from the outside to cover the encoder cover 5.
2 are installed.
【００２１】エンコーダカバー５２には、図１に示した
樹脂カバー２０と同様に四隅にフランジ部５２ａが形成
され、各フランジ部５２ａに貫通穴５２ｂが形成されて
いる。一方、後カバー４５には、図５に拡大して示すよ
うに、貫通穴５２ｂの位置に合わせてねじ溝が切られた
取付穴４５ａが形成され、取付穴４５ａの周囲には、ボ
ス部４５ｂが形成されている。さらに、貫通穴５２ｂの
周囲には、取付穴４５ａとは反対側に突出する小突起５
２ｃが１８０度間隔で２つ形成されている。小突起５２
ｃは、その外周より一段取付穴側に落ち込む凹所５２ｄ
に形成されている。As with the resin cover 20 shown in FIG. 1, flange portions 52a are formed at four corners of the encoder cover 52, and through holes 52b are formed in each of the flange portions 52a. On the other hand, as shown in an enlarged manner in FIG. 5, the rear cover 45 has a mounting hole 45a formed with a thread groove in accordance with the position of the through hole 52b, and a boss 45b is provided around the mounting hole 45a. Are formed. Further, small projections 5 protruding on the side opposite to the mounting hole 45a are provided around the through hole 52b.
Two 2c are formed at an interval of 180 degrees. Small protrusion 52
c is a recess 52d which falls from the outer periphery to the one-stage mounting hole side.
Is formed.
【００２２】取り付け時には、エンコーダカバー５２の
貫通穴５２ｂと後カバー４５の取付穴４５ａとを位置合
わせし、ボス部４５ｂを貫通穴５２ｂに挿入した状態で
平座金６０を通して貫通穴５２ｂ側から取付ねじ６１を
挿入し、取付穴４５ａに対して締め付ける。平座金６０
がボス部４５ｂに当接するまで取付ねじ６１を締め付け
ると、小突起５２ｃが平座金６０に押圧されて変形し、
応力を発生させる。従って、エンコーダカバー５２が変
形した場合にも、ガタツキの発生及びねじのゆるみを防
ぐことができる。At the time of mounting, the through hole 52b of the encoder cover 52 and the mounting hole 45a of the rear cover 45 are aligned with each other, and the boss 45b is inserted into the through hole 52b. 61 is inserted and fastened to the mounting hole 45a. Flat washer 60
When the mounting screw 61 is tightened until the small projection 52c contacts the boss 45b, the small projection 52c is pressed by the flat washer 60 and deformed.
Generate stress. Therefore, even if the encoder cover 52 is deformed, occurrence of rattling and loosening of screws can be prevented.
【００２３】なお、以上説明した実施の形態では、小突
起を２カ所に形成しているが、小突起の数はこれに限ら
れず、１箇所でも、３箇所以上に形成してもよい。ただ
し、ガタツキ防止のために必要な応力はある程度決まっ
ているため、小突起の数が少ない場合には突起の幅を大
きく、数が多い場合には幅を小さくして発生する応力が
大きく変化しないようにすることが望ましい。In the above-described embodiment, the small protrusions are formed at two places. However, the number of the small protrusions is not limited to this, and may be formed at one place or at three or more places. However, since the stress required to prevent backlash is determined to some extent, when the number of small projections is small, the width of the projection is large, and when the number is large, the width is reduced and the generated stress does not change significantly. It is desirable to do so.
【００２４】[0024]
【発明の効果】本発明は上記のように構成されるから、
次に示すような優れた効果を有する。 （１）請求項１に記載のように、被保護機器に形成され
た取付穴の周囲にボス部を形成して樹脂カバーの貫通穴
を貫通させ、この貫通穴の周囲に形成した小突起を圧縮
変形させて樹脂カバーを被保護機器に取り付けることに
より、小突起に応力を発生させて樹脂カバーのガタツキ
及び取付ねじのゆるみを防ぐことができる。変形による
応力がかかるのは、主として小突起とその周辺の限定さ
れた狭い領域のみとなるため、従来のようにタッピング
ねじを強く締め付けた場合と異なり、経年変化により樹
脂カバーが割れることもない。Since the present invention is configured as described above,
It has the following excellent effects. (1) As described in claim 1, a boss portion is formed around a mounting hole formed in the protected device to penetrate the through hole of the resin cover, and a small projection formed around the through hole is formed. By attaching the resin cover to the device to be protected by compression deformation, it is possible to prevent the small protrusion from loosening the mounting screw and loosening the mounting screw by generating a stress on the small projection. Since the stress due to the deformation is mainly applied only to the small projection and the limited narrow area around the small projection, unlike the conventional case where the tapping screw is strongly tightened, the resin cover does not crack due to aging.
【００２５】また、取付ねじは、取付板にあらかじめ形
成されたねじ溝に螺合するため、取り外し、取り付けを
繰り返してもねじ山が潰れることはなく、必要に応じて
何度でも取り外し、取り付けを繰り返すことができる。
従って、取付板に対して被保護機器と樹脂カバーを取付
ねじで共締めする構造にできるから被保護機器を小型化
することが可能となる。Further, since the mounting screw is screwed into a screw groove formed in advance on the mounting plate, the screw thread does not collapse even if it is repeatedly removed and mounted. Can be repeated.
Therefore, the protected device and the resin cover can be jointly fastened to the mounting plate with the mounting screws, so that the protected device can be downsized.
【００２６】（２）請求項２に記載のように、外周より
一段取付穴側に落ち込む凹所に小突起を形成した場合に
は、小突起に対して圧縮変形を与えたときの樹脂の変形
を凹所の部分で適切に吸収することができる。 （３）請求項３に記載のように、座金を介して取付ねじ
を取り付けることにより、ねじの頭部が小さい場合に
も、小突起全体に圧力をかけて圧縮変形させることがで
きる。 （４）請求項４に記載のように、被保護機器がアウター
ロータモータの電機部である場合には、回転駆動される
ロータをカバーで覆うことにより、他の部材との接触を
避けて円滑な回転を実現することができる。 （５）請求項５に記載のように、被保護機器がロータリ
ーエンコーダのセンサー部である場合には、回転するセ
ンサー部をカバーで覆うことにより、他の部材との接触
を避けて回転を正確に検知することができる。(2) As described in claim 2, when the small projection is formed in the recess which falls from the outer periphery to the one-stage mounting hole side, deformation of the resin when compressive deformation is applied to the small projection. Can be appropriately absorbed by the recessed portion. (3) As described in claim 3, by attaching the mounting screw via the washer, even when the head of the screw is small, the entire small projection can be compressed and deformed by applying pressure. (4) When the device to be protected is the electric portion of the outer rotor motor as described in claim 4, the rotor that is driven to rotate is covered with a cover so as to avoid contact with other members and smoothly. Rotation can be realized. (5) When the device to be protected is the sensor unit of the rotary encoder as described in claim 5, by covering the rotating sensor unit with a cover, accurate rotation is avoided by avoiding contact with other members. Can be detected.
【図１】本発明の第１の実施の形態を示し、保護カバー
とアウターロータモータとを分離して示す分解斜視図で
ある。FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, in which a protective cover and an outer rotor motor are separately shown.
【図２】同図（Ａ）、（Ｂ）は夫々図１に示す樹脂カバ
ーの取付構造の詳細を示す断面図である。FIGS. 2A and 2B are cross-sectional views showing details of a resin cover mounting structure shown in FIG. 1;
【図３】図１に示すアウターロータモータの内部構造を
示す断面図である。FIG. 3 is a sectional view showing an internal structure of the outer rotor motor shown in FIG.
【図４】本発明の第２の実施の形態を示し、モータ装置
の一部を破断して示す側面図である。FIG. 4 is a side view showing a second embodiment of the present invention, in which a part of a motor device is cut away.
【図５】図４に示すモータ装置の樹脂カバーの取付構造
の拡大断面図である。5 is an enlarged sectional view of a mounting structure of a resin cover of the motor device shown in FIG.
１０：アウターロータモータ １１：ロータ １２：前カバー １４：取付穴 １４ａ：ボス部 ２０：樹脂カバー ２２：フランジ部 ２３：貫通穴 ２４：小突起 ２５：凹所 ３０：取付ねじ ３１：ワッシャー ３２：平座金 10: Outer rotor motor 11: Rotor 12: Front cover 14: Mounting hole 14a: Boss 20: Resin cover 22: Flange 23: Through hole 24: Small projection 25: Concave 30: Mounting screw 31: Washer 32: Flat Washer
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１２年８月３０日（２０００．８．３
０）[Submission date] August 30, 2000 (2008.3.
0)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１２】締め付け前の状態では、図２（Ａ）に示す
ように、小突起２４の高さは凹所２５より外側の部分と
一致する。なお、ボス部１４ａと小突起２４との関係
は、ボス部１４ａを貫通穴２３に挿入すると、ボス部１
４ａの先端は凹所２５より高くなり、かつ、小突起２４
より低い位置となるように形成する。In the state before the tightening, as shown in FIG. 2A, the height of the small projection 24 coincides with the portion outside the recess 25. The relationship between the boss 14a and the small protrusion 24 is such that when the boss 14a is inserted into the through hole 23, the boss 1
The tip of 4a is higher than the recess 25 and the small projection 24
It is formed to be at a lower position.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１３】ここで取付ねじ３０を締め付けると、取付
ねじ３０の頭部３０ａがワッシャー３１、平座金３２を
介して小突起２４を押圧し、小突起２４は圧縮変形す
る。図２（Ｂ）に示すように、平座金３２がボス部１４
ａに当接するまで取付ねじ３０を締め付ける。小突起２
４は潰れて取付ねじ３０に対して貫通穴２３から抜け出
る方向の応力を発生させ、これにより、樹脂カバー２０
が変形した場合にも、ガタツキの発生及びねじのゆるみ
を防ぐことができる。 ─────────────────────────────────────────────────────
When the mounting screw 30 is tightened, the head 30a of the mounting screw 30 presses the small projection 24 via the washer 31 and the flat washer 32, and the small projection 24 is compressed and deformed. As shown in FIG. 2B, the flat washer 32 is
Tighten the mounting screw 30 until it comes into contact with a. Small protrusion 2
4 is crushed to generate a stress on the mounting screw 30 in a direction of coming out of the through hole 23, whereby the resin cover 20
Even if is deformed, occurrence of rattling and loosening of the screw can be prevented. ────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１２年９月２５日（２０００．９．２
５）[Submission Date] September 25, 2000 (2009.2)
5)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２３[Correction target item name] 0023
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２３】なお、以上説明した実施の形態では、小突
起を２箇所に形成しているが、小突起の数はこれに限ら
れず、１箇所でも、３箇所以上に形成してもよい。ただ
し、ガタツキ防止のために必要な応力はある程度決まっ
ているため、小突起の数が少ない場合には突起の幅を大
きく、数が多い場合には幅を小さくして発生する応力が
大きく変化しないようにすることが望ましい。In the embodiment described above, the small protrusions are formed at two places. However, the number of the small protrusions is not limited to this, and may be formed at one place or at three or more places. However, since the stress required to prevent backlash is determined to some extent, when the number of small projections is small, the width of the projection is large, and when the number is large, the width is reduced and the generated stress does not change significantly. It is desirable to do so.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｋ 11/00 Ｈ０２Ｋ 11/00 Ｂ Ｆターム(参考） 2F077 AA42 CC02 VV02 VV23 VV31 3J001 FA02 GA06 GB01 HA08 HA09 JA03 KA06 KA21 KA26 KB00 5H605 AA07 BB05 CC01 CC02 CC03 DD03 DD05 EA15 EA16 EA19 GG03 GG05 GG06 5H611 AA03 BB01 QQ01 QQ02 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H02K 11/00 H02K 11/00 BF Term (Reference) 2F077 AA42 CC02 VV02 VV23 VV31 3J001 FA02 GA06 GB01 HA08 HA09 JA03 KA06 KA21 KA26 KB00 5H605 AA07 BB05 CC01 CC02 CC03 DD03 DD05 EA15 EA16 EA19 GG03 GG05 GG06 5H611 AA03 BB01 QQ01 QQ02
Claims (5)
貫通穴と被保護機器に形成された取付穴とを位置合わせ
し、前記貫通穴側から取付ねじを挿入して前記取付穴と
共に被保護機器を取り付ける取付板に対して締め付ける
ことにより前記樹脂カバーを前記被保護機器に取り付け
る樹脂カバーの取付構造において、 前記取付穴の周囲に、前記樹脂カバー側に突出して前記
貫通穴を貫通するボス部を形成し、 前記貫通穴の周囲に、前記取付穴とは反対側に突出する
小突起を少なくとも１つ形成し、 前記ボス部を前記貫通穴に挿入した状態で前記取付ねじ
を締め付けることにより、前記取付ねじの頭部で前記小
突起を圧縮変形させて前記樹脂カバーを前記被保護機器
に取り付けることを特徴とする樹脂カバーの取付構造。1. A through hole formed in a plate-like mounting portion of a resin cover is aligned with a mounting hole formed in a device to be protected. A mounting screw is inserted from the through hole side together with the mounting hole. In a resin cover mounting structure for mounting the resin cover to the protected device by tightening the mounting plate on which the protected device is mounted, the resin cover may protrude toward the resin cover side around the mounting hole and pass through the through hole. Forming a boss, forming at least one small projection around the through hole on the side opposite to the mounting hole, and tightening the mounting screw with the boss inserted into the through hole; The compression structure deforms the small protrusion with the head of the mounting screw to mount the resin cover on the protected device.
付穴側に落ち込む凹所に形成されていることを特徴とす
る請求項１に記載の樹脂カバーの取付構造。2. The resin cover mounting structure according to claim 1, wherein the small projection is formed in a recess which is one step lower than the outer periphery toward the mounting hole.
られていることを特徴とする請求項１または２に記載の
樹脂カバーの取付構造。3. The resin cover mounting structure according to claim 1, wherein the mounting screw is mounted via a washer.
タの電機部であることを特徴とする請求項１乃至３のい
ずれかに記載の樹脂カバーの取付構造。4. The resin cover mounting structure according to claim 1, wherein the protected device is an electric portion of an outer rotor motor.
ダのセンサー部であることを特徴とする請求項１乃至３
のいずれかに記載の樹脂カバーの取付構造。5. The apparatus according to claim 1, wherein the device to be protected is a sensor unit of a rotary encoder.
The mounting structure of the resin cover according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000260380A JP3447681B2 (en) | 2000-08-30 | 2000-08-30 | Mounting structure of resin cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000260380A JP3447681B2 (en) | 2000-08-30 | 2000-08-30 | Mounting structure of resin cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002078273A true JP2002078273A (en) | 2002-03-15 |
| JP3447681B2 JP3447681B2 (en) | 2003-09-16 |
Family
ID=18748401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000260380A Expired - Fee Related JP3447681B2 (en) | 2000-08-30 | 2000-08-30 | Mounting structure of resin cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3447681B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006118711A (en) * | 2004-10-20 | 2006-05-11 | Luk Lamellen & Kupplungsbau Beteiligungs Kg | Device for fixing plastic constitution part at support part |
| JP2007083430A (en) * | 2005-09-20 | 2007-04-05 | Aisan Ind Co Ltd | Resin member and throttle body equipped with it |
| JP2009101912A (en) * | 2007-10-24 | 2009-05-14 | Nissan Motor Co Ltd | Front end module mounting structure |
| JP2010131150A (en) * | 2008-12-04 | 2010-06-17 | Nippon Foods Center:Kk | Food baking apparatus |
| JP2011054321A (en) * | 2009-08-31 | 2011-03-17 | Yazaki Corp | Shield connector for equipment |
| JP2012097760A (en) * | 2010-10-08 | 2012-05-24 | Enplas Corp | Helical gear |
| KR101457655B1 (en) * | 2013-06-21 | 2014-11-10 | 한국파워트레인 주식회사 | Motor case and method for assembling the same |
| US20160031233A1 (en) * | 2014-07-30 | 2016-02-04 | Canon Kabushiki Kaisha | Drive transmission device, printing apparatus, position adjusting mechanism, and fastening method |
| WO2021248804A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州迎乐机电自动化科技有限公司 | Convenient-to-maintain direct-drive electric motor |
| JP2022024123A (en) * | 2016-05-10 | 2022-02-08 | 三菱電機株式会社 | Lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006118711A (en) * | 2004-10-20 | 2006-05-11 | Luk Lamellen & Kupplungsbau Beteiligungs Kg | Device for fixing plastic constitution part at support part |
| JP2007083430A (en) * | 2005-09-20 | 2007-04-05 | Aisan Ind Co Ltd | Resin member and throttle body equipped with it |
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| JP2009101912A (en) * | 2007-10-24 | 2009-05-14 | Nissan Motor Co Ltd | Front end module mounting structure |
| JP2010131150A (en) * | 2008-12-04 | 2010-06-17 | Nippon Foods Center:Kk | Food baking apparatus |
| JP2011054321A (en) * | 2009-08-31 | 2011-03-17 | Yazaki Corp | Shield connector for equipment |
| JP2012097760A (en) * | 2010-10-08 | 2012-05-24 | Enplas Corp | Helical gear |
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| KR101457655B1 (en) * | 2013-06-21 | 2014-11-10 | 한국파워트레인 주식회사 | Motor case and method for assembling the same |
| US20160031233A1 (en) * | 2014-07-30 | 2016-02-04 | Canon Kabushiki Kaisha | Drive transmission device, printing apparatus, position adjusting mechanism, and fastening method |
| CN105317947A (en) * | 2014-07-30 | 2016-02-10 | 佳能株式会社 | Drive transmission device, printing apparatus, position adjusting mechanism, and fastening method |
| JP2016031129A (en) * | 2014-07-30 | 2016-03-07 | キヤノン株式会社 | Position adjustment mechanism, drive transmission device, recording device and fastening method |
| US9568072B2 (en) * | 2014-07-30 | 2017-02-14 | Canon Kabushiki Kaisha | Drive transmission device, printing apparatus, position adjusting mechanism, and fastening method |
| CN105317947B (en) * | 2014-07-30 | 2018-06-26 | 佳能株式会社 | Drive transmission device, printing device, position adjusting mechanism and fastening method |
| JP2022024123A (en) * | 2016-05-10 | 2022-02-08 | 三菱電機株式会社 | Lighting device |
| JP7203931B2 (en) | 2016-05-10 | 2023-01-13 | 三菱電機株式会社 | lighting equipment |
| WO2021248804A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州迎乐机电自动化科技有限公司 | Convenient-to-maintain direct-drive electric motor |
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| Publication number | Publication date |
|---|---|
| JP3447681B2 (en) | 2003-09-16 |
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