JP2500524Y2 - Bearings for small motors - Google Patents
Bearings for small motorsInfo
- Publication number
- JP2500524Y2 JP2500524Y2 JP1991032461U JP3246191U JP2500524Y2 JP 2500524 Y2 JP2500524 Y2 JP 2500524Y2 JP 1991032461 U JP1991032461 U JP 1991032461U JP 3246191 U JP3246191 U JP 3246191U JP 2500524 Y2 JP2500524 Y2 JP 2500524Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- small motor
- circumference
- hole
- slit
- 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.)
- Expired - Lifetime
Links
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- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、小型モータの軸受装置
に係り、特に、自動調心機能を有し、且つ、低価格を実
現した小型モータの軸受装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing device for a small motor, and more particularly to a bearing device for a small motor which has a self-aligning function and realizes a low price.
【０００２】[0002]
【従来の技術】固定軸受構造を有する従来の小型モータ
の軸受装置は、小型モータの筒の両開口端に嵌合された
端面板の中央部に当該小型モータのシャフトを貫通する
ための貫通口が開口されており、この貫通口の内周部が
軸受となった構造を有している。この小型モータの軸受
装置は、前記貫通口の精度や前記小型モータの筒と端面
板との嵌合精度が不十分な場合には、当該両端面板中央
に設けられた軸受同士の心ズレを来たし、電機子をモー
タ内部に組み込む際に、前記軸受とシャフトとの間に機
械的な損失につながる特性の不安定やバラツキを生じ、
最悪の場合には動作不能を来すという問題があった。2. Description of the Related Art A conventional bearing device for a small motor having a fixed bearing structure has a through hole for penetrating a shaft of the small motor in a central portion of an end face plate fitted to both open ends of a cylinder of the small motor. Has a structure in which the inner peripheral portion of this through hole serves as a bearing. When the precision of the through hole and the fitting precision between the cylinder of the small motor and the end plates are insufficient, the bearing device for the small motor causes a misalignment between the bearings provided at the center of the both end plates. , When incorporating the armature inside the motor, instability or variation in characteristics that lead to mechanical loss occurs between the bearing and the shaft,
In the worst case, there was a problem that it could not operate.
【０００３】そこで、この問題を解決するために、一般
に、自動調心機能を有する軸受を使用している。この軸
受は、小型モータの筒の両開口端に嵌合された端面板の
片方の軸受穴部或いは両方の軸受穴部に独立した球状の
軸受を固定した構造を有するものであり、例えば、実公
昭６２−１６７６１号に開示されているように、前記軸
受同士の心ズレを改善すると共に、前記軸受の脱落防止
機能を備えている。Therefore, in order to solve this problem, a bearing having a self-centering function is generally used. This bearing has a structure in which an independent spherical bearing is fixed to one bearing hole portion or both bearing hole portions of an end face plate fitted to both open ends of a small motor cylinder. As disclosed in Japanese Examined Patent Publication No. 62-16761, it has a function of improving the misalignment between the bearings and preventing the bearings from falling off.
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、前記実
公昭６２−１６７６１号に開示されている従来例は、自
動調心機能は有するが、軸受や軸受を保持する部品等の
材料費が高く、また、これらを組み立てるために更に費
用や手間がかかるという問題があった。However, the conventional example disclosed in Japanese Utility Model Publication No. 62-16761 has a self-centering function, but the material cost of the bearings and parts for holding the bearings is high, and However, there was a problem that it took more cost and labor to assemble them.
【０００５】本考案は、このような問題を解決すること
を課題とするものであり、自動調心機能を有し、且つ、
低価格を実現した小型モータの軸受装置を提供すること
を目的とするものである。The present invention has an object to solve such a problem, has an automatic centering function, and
It is an object of the present invention to provide a bearing device for a small motor that realizes a low price.
【０００６】[0006]
【課題を解決するための手段】この目的を達成するため
に本考案は、小型モータの筒の両開口端に各々設けられ
た端面板の中央部に当該小型モータのシャフトを貫通す
る貫通口を設け、この貫通口の内周が軸受となった小型
モータの軸受装置において、前記両端面板の少なくとも
一方には、前記軸受の中心からの距離が相違する複数の
円周の各円周上にスリットを設けてなり、少なくとも１
つの円周上に設けられたスリットを、他の少なくとも１
つの円周上に設けられたスリットと円周方向において異
なる位置に設けて、前記端面板中心から遠心方向に向け
てスリットが少なくとも１つ設けられるように配したこ
とにより、前記貫通口を、前記端面板の面方向および前
記貫通口の軸方向での移動と、傾動とができるように前
記端面板に伸縮性と可撓性とを付与した。In order to achieve this object, the present invention has a through hole for penetrating a shaft of a small motor at the center of end plates provided at both open ends of a cylinder of the small motor. provided, in the bearing system for a small motor which inner periphery of the through hole becomes bearing, on at least one of the end faces plate, a plurality of distance from the center of the bearing is different
At least 1 slit is provided on each circumference.
Slits provided on one circumference should be
Different from the slits provided on one circle in the circumferential direction.
At the position where
Are arranged so that at least one slit is provided.
And the through-hole to the surface direction of the end plate and front
Note that the through-hole can be moved in the axial direction and tilted.
Stretchability and flexibility were imparted to the end face plate .
【０００７】[0007]
【０００８】[0008]
【作用】請求項１記載の考案によれば、少なくとも一方
の端面板に前記スリットを設けたことで、前記貫通口の
精度や前記小型モータの筒と端面板との嵌合精度が不十
分であっても、これにより生じる軸受の位置ズレや貫通
口の位置ズレを前記スリットがその変形により吸収する
ため、前記両軸受間の心ズレを防止することができる。
このため、常に前記シャフトを小型モータの筒に対して
平行に保持することができる。従って、従来のように、
自動調心機能を付与するために独立した軸受を設けるこ
となく、前記軸受装置に自動調心機能を付与することが
できる。According to the invention as set forth in claim 1, since the slit is provided in at least one end face plate, the precision of the through hole and the fitting precision between the cylinder of the small motor and the end face plate are insufficient. Even if there is, the slits absorb the positional deviation of the bearings and the positional deviation of the through holes caused by the deformation, so that the misalignment between the both bearings can be prevented.
Therefore, the shaft can always be held parallel to the cylinder of the small motor. Therefore, as before,
The bearing device can be provided with the self-aligning function without providing a separate bearing for providing the self-aligning function.
【０００９】さらに、前記スリットを軸受からの距離が
相違する複数の円周の各円周上に設け、少なくとも１つ
の円周上に設けられたスリットを、他の少なくとも１つ
の円周上に設けられたスリットと円周方向において異な
る位置に設けて、前記端面板中心から遠心方向に向けて
スリットが少なくとも１つ設けられるように配すること
により、端面板に貫通口を中心として伸縮性と可撓性を
付与してあるために、軸受または貫通口のあらゆる方向
のずれに速やかに対応することができる。 Furthermore , at least one slit is provided on each circumference of a plurality of circumferences having different distances from the bearing.
At least one other slit provided on the circumference of
The slits on the circumference of the
The end face plate from the center toward the centrifugal direction.
Arrange so that there is at least one slit
Allows the end plate to have elasticity and flexibility centered on the through-hole.
All directions of bearings or through openings due to
It is possible to quickly respond to the deviation.
【００１０】[0010]
【実施例】次に、本考案の実施例を図面を参照して説明
する。図１は、端面板の中央に設けられた貫通口の内周
が軸受となった小型モータの軸受装置の平面図、図２
は、小型モータの筒に図１に示す小型モータ軸受装置を
嵌合した状態を示す断面図である。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a plan view of a bearing device for a small motor in which the inner circumference of a through hole provided in the center of an end plate serves as a bearing, and FIG.
FIG. 2 is a cross-sectional view showing a state in which the small motor bearing device shown in FIG. 1 is fitted in a cylinder of a small motor.
【００１１】図１において、２Ａ、２Ｂで示される端面
板は、その中央（中心部）に、後に説明する小型モータ
のシャフト４を貫通するための貫通口が開口されてお
り、この貫通口の内周が軸受５Ａ及び５Ｂとなってい
る。そして、この端面板２Ａ及び２Ｂには、軸受５Ａ及
び５Ｂを中心とした二つの大小の円周上に、その円周に
沿って細長い円弧状のスリット３Ａ及び３Ｂが各二つ設
けられている。そして、一方の円周上のスリット３Ａ
は、他方の円周上のスリット３Ｂと円周方向において９
０°異なった位置に設けられている。即ち、端面板２Ａ
及び２Ｂの中心から遠心方向に見たどの方向にもスリッ
ト２Ａ又は２Ｂが少なくとも一つ設けられている。In FIG. 1, the end plates indicated by 2A and 2B have a through hole for penetrating a shaft 4 of a small motor, which will be described later, at the center (center portion) thereof. The inner circumference is bearings 5A and 5B. Further, the end plates 2A and 2B are provided with two elongated slits 3A and 3B, respectively, along the circumference on two large and small circles centering on the bearings 5A and 5B. . And the slit 3A on one circumference
Is 9 in the circumferential direction with the slit 3B on the other circumference.
They are provided at different positions by 0 °. That is, the end face plate 2A
And, at least one slit 2A or 2B is provided in any direction viewed from the center of 2B and the centrifugal direction.
【００１２】図２において、１で示される小型モータ
は、公知のシャフト４，マグネット７，電機子８，コン
ミュテータ９及びブラシ１０を筒６に内蔵し、この筒６
の両開口端にシャフト４が貫通した状態で、図１に示す
軸受装置１１を嵌合した構造を有している。In FIG. 2, a small motor indicated by 1 has a well-known shaft 4, a magnet 7, an armature 8, a commutator 9 and a brush 10 built in a cylinder 6, and the cylinder 6
1 has a structure in which the bearing device 11 shown in FIG. 1 is fitted in a state in which the shaft 4 penetrates both open ends.
【００１３】次に、この小型モータの軸受装置１１の具
体的動作について説明する。図３（１）は、図１に示す
小型モータの軸受装置のＸ−Ｘ断面図、図３（２）は、
図１に示す小型モータの軸受装置のＹ−Ｙ断面図であ
る。Next, the specific operation of the bearing device 11 for the small motor will be described. 3 (1) is a sectional view taken along the line XX of the bearing device for the small motor shown in FIG. 1, and FIG. 3 (2) is
It is a YY sectional view of the bearing device of the small motor shown in FIG.
【００１４】図３（１）に示すように、例えば、軸受装
置１１が筒６に対してＸ方向に角度α傾いて嵌合され、
これに伴い軸受５Ａが正常な位置からずれても、軸受５
Ａに、端面板２Ａの面方向への移動及び軸受５Ａの軸方
向での傾動が生じて、スリット３Ａ及び３Ｂがこのズレ
を吸収するため、軸受装置１１と筒６とが正常に嵌合さ
れた場合と同様な関係となり、両軸受５Ａ及び５Ｂ間の
心ずれを防止する。また、図３（２）に示すように、軸
受装置１１が筒６に対してＹ方向に角度β傾いて嵌合さ
れた場合も前記と同様に、両軸受５Ａ及び５Ｂ間の心ず
れを防止する。さらに、軸毛装置１１が筒６に対してＸ
及びＹ方向に角度α及び角度β同時に傾いて嵌合された
場合も前記と同様に、両軸受５Ａ及び５Ｂ間の心ずれを
防止する。このように、軸受装置１１と筒６との嵌合精
度が不十分であっても軸受５Ａ及び５Ｂを常にシャフト
４に対して平行に保つことができる結果、軸受装置１１
に自動調心機能を持たせることができる。As shown in FIG. 3 (1), for example, the bearing device 11 is fitted to the cylinder 6 at an angle α in the X direction,
Even if the bearing 5A is displaced from the normal position due to this, the bearing 5
A, the movement of the end face plate 2A in the surface direction and the axial direction of the bearing 5A
Since the slits 3A and 3B absorb this deviation due to tilting in the same direction, the relationship becomes the same as when the bearing device 11 and the cylinder 6 are normally fitted, and the misalignment between the bearings 5A and 5B occurs. Prevent. Further, as shown in FIG. 3 (2), when the bearing device 11 is fitted to the cylinder 6 with an inclination of the angle β in the Y direction, the misalignment between the bearings 5A and 5B is prevented in the same manner as described above. To do. Furthermore, the shaft bristle device 11 moves X with respect to the tube 6.
Also, when both the angles α and β are simultaneously fitted in the Y direction, the misalignment between the bearings 5A and 5B is prevented as described above. As described above, even if the fitting accuracy of the bearing device 11 and the cylinder 6 is insufficient, the bearings 5A and 5B are always attached to the shaft.
The results can be kept parallel to 4, the bearing device 11
Can have automatic alignment function.
【００１５】また、軸受装置１１の貫通口の精度が不十
分なために貫通口が端面板２Ａ及び２Ｂの中心から偏っ
ている等のように正常な位置からズレても、前記と同様
にスリット３Ａ及び３Ｂがこのズレを吸収するため、両
軸受５Ａ及び５Ｂ間の心ズレを防止し、シャフト４を常
に筒６に対して平行に保つことができる結果、軸受装置
１１に自動調心機能を持たせることができる。Further, even if the through hole is deviated from the normal position such that the through hole is deviated from the center of the end plates 2A and 2B due to insufficient accuracy of the through hole of the bearing device 11, the slit is formed in the same manner as described above. Since 3A and 3B absorb this misalignment, the misalignment between both bearings 5A and 5B can be prevented, and the shaft 4 can always be kept parallel to the cylinder 6. As a result, the bearing device 11 can be provided with the self-aligning function. You can have it.
【００１６】そして、自動調心機能を付与するために独
立した軸受を設ける必要がないため、これらを組み立て
る手間や材料費等がかからず、低価格で製造することが
できる。Since it is not necessary to provide an independent bearing in order to provide the self-aligning function, it is possible to manufacture them at low cost without assembling them or material cost.
【００１７】尚、本実施例では、筒６の両開口端に嵌合
した軸受装置１１の端面板２Ａ及び２Ｂにスリット３Ａ
及び３Ｂを設けたが、いずれか一方の端面板にスリット
を設ければ、軸受装置１１に自動調心機能を持たせるこ
とができる。In this embodiment, the slits 3A are formed in the end face plates 2A and 2B of the bearing device 11 fitted to both open ends of the cylinder 6.
And 3B are provided, the bearing device 11 can be provided with a self-centering function by providing a slit in either one of the end plates.
【００１８】また、本実施例では、軸受５Ａ及び５Ｂを
中心とした二つの大小の円周上に、その円周に沿って細
長いスリット３Ａ及び３Ｂを各二つ設けたが、これに限
らず、軸受や端面板の大きさ、形状等により、スリット
の形状や開口数を決定してよい。また、スリットは、同
一円周上に設けず所望の位置に設けてもよい。Further, in this embodiment, two elongated slits 3A and 3B are provided along the circumference on two large and small circles centering on the bearings 5A and 5B, but the present invention is not limited to this. The shape and numerical aperture of the slit may be determined according to the size and shape of the bearing and the end plate. Further, the slits may be provided at desired positions instead of being provided on the same circumference.
【００１９】そして、本実施例では、図２に示す構造の
小型モータを用いたが、これに限らず、他の構造（形
状）を有する小型モータを用いてもよく、例えば、軸受
装置間の心ズレ精度がでにくい細長い形状の小型モータ
を用いた場合でも、前記と同様の効果を得ることができ
る。Although the small motor having the structure shown in FIG. 2 is used in this embodiment, the present invention is not limited to this, and a small motor having another structure (shape) may be used. Even in the case of using a small motor having an elongated shape, which is difficult to be misaligned, the same effect as described above can be obtained.
【００２０】[0020]
【考案の効果】以上、説明したように、この考案によれ
ば、前記両端面板の少なくとも一方には、前記軸受の中
心からの距離が相違する複数の円周の各円周上にスリッ
トを設けてなり、少なくとも１つの円周上に設けられた
スリットを、他の少なくとも１つの円周上に設けられた
スリットと円周方向において異なる位置に設けて、前記
端面板中心から遠心方向に向けてスリットが少なくとも
１つ設けられるように配したことにより、前記貫通口
を、前記端面板の面方向および前記貫通口の軸方向での
移動と、傾動とができるように前記端面板に伸縮性と可
撓性とを付与したことで、当該端面板と小型モータの筒
との嵌合精度や前記貫通口の精度が不十分であっても、
これにより生じる当該軸受および貫通口の位置ずれと傾
きとを前記スリットが吸収できる結果、常に軸受をシャ
フトに対して平行に保持することができる。この結果、
自動調心機能を付与するための格別の独立した軸受を設
けることなく小型モータの軸受装置を提供することがで
きる。[Effect of the invention] As described above, according to the invention of this, at least one of the end faces plate is in said bearing
Sliding on each circumference of multiple circumferences with different distances from the heart
Provided on at least one circumference
Slits provided on at least one other circumference
Provided at different positions in the circumferential direction with the slit,
From the center of the end plate toward the centrifugal direction, the slit should be at least
By arranging so that one is provided, the through hole
In the surface direction of the end plate and the axial direction of the through-hole.
The end plate is elastic and flexible so that it can be moved and tilted.
By imparting flexibility , even if the fitting accuracy of the end plate and the cylinder of the small motor and the accuracy of the through hole are insufficient,
The resulting displacement and tilt of the bearing and the through-hole
As a result of the slits being able to absorb the stress , the bearings are always
Can be held parallel to the shaft . As a result,
It is possible to provide a bearing device for a small motor without providing a special independent bearing for providing a self-aligning function.
【００２１】さらに、請求項２記載の考案によれば、前
記スリットを前記軸受からの距離が相違する複数の円周
上に設け、各々の円周上のスリットは、他の少なくとも
一つの円周上に設けられたスリットと円周方向に異なる
位置に設定したことで、当該端面板の中心から見たどの
方向にも当該スリットが設けられる結果、前記効果に加
え、前記軸受や貫通口がどの方向にズレても速やかにそ
のズレに対応することができる。Further, according to the second aspect of the invention, the slits are provided on a plurality of circles having different distances from the bearing, and each slit on each circle has at least one other circle. By setting the slits at different positions in the circumferential direction from the slits provided above, the slits can be provided in any direction viewed from the center of the end face plate. Even if there is a deviation in the direction, it is possible to quickly cope with the deviation.
【図１】本考案の実施例に係る小型モータ軸受装置の平
面図である。FIG. 1 is a plan view of a small motor bearing device according to an embodiment of the present invention.
【図２】小型モータの筒に図１に示す小型モータ軸受装
置を嵌合した状態を示す断面図である。FIG. 2 is a cross-sectional view showing a state in which the small motor bearing device shown in FIG. 1 is fitted in a small motor cylinder.
【図３】図１に示す小型モータの軸受装置のＸ−Ｘ断面
図及びＹ−Ｙ断面図である。3A and 3B are an XX sectional view and an YY sectional view of the bearing device of the small motor shown in FIG.
１ 小型モータ ２Ａ 端面板 ２Ｂ 端面板 ３Ａ スリット ３Ｂ スリット ４ シャフト ５Ａ 軸受 ５Ｂ 軸受 ６ 筒 １１ 軸受装置 1 Small Motor 2A End Face Plate 2B End Face Plate 3A Slit 3B Slit 4 Shaft 5A Bearing 5B Bearing 6 Tube 11 Bearing Device
Claims (1)
れた端面板の中央部に当該小型モータのシャフトを貫通
する貫通口を設け、この貫通口の内周が軸受となった小
型モータの軸受装置において、 前記両端面板の少なくとも一方には、前記軸受の中心か
らの距離が相違する複数の円周の各円周上にスリットを
設けてなり、少なくとも１つの円周上に設けられたスリ
ットを、他の少なくとも１つの円周上に設けられたスリ
ットと円周方向において異なる位置に設けて、前記端面
板中心から遠心方向に向けてスリットが少なくとも１つ
設けられるように配したことにより、前記貫通口を、前
記端面板の面方向および前記貫通口の軸方向での移動
と、傾動とができるように前記端面板に伸縮性と可撓性
とを付与したことを特徴とする小型モータの軸受装置。1. A small motor in which a through hole penetrating a shaft of the small motor is provided in a central portion of an end face plate provided at each opening end of a cylinder of the small motor, and an inner circumference of the through hole serves as a bearing. In the bearing device of, at least one of the both end face plates has a center of the bearing .
A slit on each circumference of multiple circumferences with different distances
Provided and picked on at least one circumference
Slot on at least one other circumference
The end face at a different position in the circumferential direction from the
At least one slit from the plate center toward the centrifugal direction
By arranging it so that it is provided,
Movement in the plane direction of the end plate and the axial direction of the through hole
The end plate is stretchable and flexible so that it can be tilted.
Bearing system for a small motor, characterized in that it has granted and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991032461U JP2500524Y2 (en) | 1991-05-10 | 1991-05-10 | Bearings for small motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991032461U JP2500524Y2 (en) | 1991-05-10 | 1991-05-10 | Bearings for small motors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04128073U JPH04128073U (en) | 1992-11-20 |
| JP2500524Y2 true JP2500524Y2 (en) | 1996-06-05 |
Family
ID=31915393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991032461U Expired - Lifetime JP2500524Y2 (en) | 1991-05-10 | 1991-05-10 | Bearings for small motors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2500524Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002010589A (en) * | 2000-06-26 | 2002-01-11 | Nitto Zoki Kk | Motor substrate, method for verticalizing rotor shaft and motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162041A (en) * | 1981-03-31 | 1982-10-05 | Nec Corp | Diagnostic system of terminal controller |
| DE3372297D1 (en) * | 1983-11-22 | 1987-08-06 | Rueti Ag Maschf | Weft yarn storage unit for looms |
-
1991
- 1991-05-10 JP JP1991032461U patent/JP2500524Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04128073U (en) | 1992-11-20 |
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