JPS5850134Y2 - Flywheel magnet rotor for engines - Google Patents
Flywheel magnet rotor for enginesInfo
- Publication number
- JPS5850134Y2 JPS5850134Y2 JP3771479U JP3771479U JPS5850134Y2 JP S5850134 Y2 JPS5850134 Y2 JP S5850134Y2 JP 3771479 U JP3771479 U JP 3771479U JP 3771479 U JP3771479 U JP 3771479U JP S5850134 Y2 JPS5850134 Y2 JP S5850134Y2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- magnet rotor
- flywheel
- teeth
- engines
- 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
Links
Landscapes
- Gears, Cams (AREA)
Description
【考案の詳細な説明】
本考案は機開始動用の歯車を一体に形成したエンジン用
フライホイール磁石回転子に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flywheel magnet rotor for an engine integrally formed with a gear for starting the engine.
従来は第１図のように機開始動用リングギヤー１を別に
形成し、これをフライホイール本体２の外周に圧入（焼
嵌め）、回り止めピン３、ボルト、リベット等の単独又
は併用により固着していた。Conventionally, as shown in Fig. 1, a ring gear 1 for starting the machine is formed separately, and this is fixed to the outer periphery of the flywheel body 2 by press-fitting (shrink fitting) or using a stopper pin 3, bolts, rivets, etc., either alone or in combination. was.
このため、（１）製造に手数がかかり、コスト高となる
。For this reason, (1) manufacturing is labor-intensive and costs are high;
（２） リングギヤー１の加工が、歪、歩留り、切削方
法等の面で困難である。(2) Processing of the ring gear 1 is difficult in terms of distortion, yield, cutting method, etc.
（３）急加速、減速、エンジンオーバラン時等にリング
ギヤーの慣性とフライホイール円筒部４０強度不足の為
リングギヤー１が抜けたり回ったりする恐れがある。(3) During sudden acceleration, deceleration, engine overrun, etc., the ring gear 1 may come off or rotate due to the inertia of the ring gear and the insufficient strength of the flywheel cylindrical portion 40.
（４）抵抗トルク確保の為、必要以上のギヤー幅が要求
される。(4) In order to secure resistance torque, a gear width larger than necessary is required.
椀状のフライホイール本体を板金製にすると、絞り加工
を容易にするため、或は軽量化のために比較的薄い板材
が使用されることになり、このためフライホイール本体
外周の円筒部の一端を単に９０°鍔状に外方へ折り曲げ
てその外周に歯を形成すると、歯幅が板厚と等しくなり
、歯幅を充分取れず、又絞り用板材は硬度が低いため、
歯が摩耗しやすい。If the bowl-shaped flywheel body is made of sheet metal, a relatively thin plate material will be used to facilitate drawing or to reduce weight. If the material is simply bent outward into a 90° flange shape and teeth are formed on the outer periphery, the tooth width will be equal to the plate thickness, and the tooth width will not be sufficient, and the drawing plate material has low hardness.
Teeth are prone to wear.
従って耐久性を持たせるためには歯幅を確保する必要が
ある。Therefore, in order to provide durability, it is necessary to ensure a sufficient tooth width.
本考案は第２図の如く、フライホイール本体５の円筒部
６の外周に鍔部７をプレスにて一体成形すると共に、鍔
部７に斜角αを与え、これに歯切り加工を加えて歯を形
成することにより歯８の軸方向幅を板厚より広くしたこ
とを特徴としており、本考案によると前記の問題をすべ
て解決することができるのである。As shown in Fig. 2, the present invention includes integrally molding the flange 7 on the outer periphery of the cylindrical portion 6 of the flywheel body 5 using a press, giving the flange 7 an oblique angle α, and adding gear cutting to the flange 7. By forming the teeth, the axial width of the teeth 8 is made wider than the plate thickness, and the present invention can solve all of the above-mentioned problems.
第２図中フライホイール本体５は絞り用・鋼板（例えば
ＳＰＣ，５ＰＨＣ）のプレス成形品で、歯８はプレスに
よる打抜き加工、又はホブ盤による切削加工により形成
する。In FIG. 2, the flywheel main body 5 is a press-formed product of drawing steel plate (for example, SPC, 5PHC), and the teeth 8 are formed by punching with a press or cutting with a hobbing machine.
なおフライホイール本体５の中央部には複数個のリベッ
ト９によりボス１０が取り付げである。A boss 10 is attached to the center of the flywheel body 5 with a plurality of rivets 9.
１１は磁石である。11 is a magnet.
以上説明したように本考案によると、フライホイール本
体５の円筒部６の一端を鍔状に外方へ折り曲げて鍔部７
を形成すると共に、該鍔部に斜角をつげ、該歯の軸方向
幅を板厚より広くし、この鍔部１の外周に機開始動用の
歯８を形成したので（１） 歯８から成るリングギヤ
一部の抜けがなくな、る。As explained above, according to the present invention, one end of the cylindrical portion 6 of the flywheel body 5 is bent outward in the shape of a flange.
At the same time, the flange is beveled, the axial width of the teeth is wider than the plate thickness, and the teeth 8 for starting the machine are formed on the outer periphery of the flange 1. (1) From the teeth 8. Part of the ring gear will no longer come off.
（２） フライホイール本体５の重量が軽くなる。(2) The weight of the flywheel body 5 is reduced.
（３）加工が極めて簡単になる。(3) Processing becomes extremely easy.
（４） フライホイール本体５とボス１０との接続用リ
ベット９の負担が軽くなる。(4) The burden on the connecting rivet 9 between the flywheel body 5 and the boss 10 is reduced.
（５）鍔部７に斜角αをつげ、鍔部７がフライホイール
本体５の中心線と直角な面に対しテーパ状に傾斜してい
るので、斜角Ｏの場合の板厚に等しい歯幅Ｌ１をＬ２に
増加することができ、絞り加工に適した比較的薄い板材
を使用し、又比較的低い硬度の板材を使用しても、単に
斜角αをつげるだげで歯幅が大幅に増加し、耐久性を確
保することができる。(5) The flange 7 has a beveled angle α, and since the flange 7 is tapered with respect to a plane perpendicular to the center line of the flywheel body 5, the teeth are equal to the plate thickness when the bevel angle is O. Width L1 can be increased to L2, and even if a relatively thin plate material suitable for drawing processing is used, or a plate material with relatively low hardness is used, the tooth width can be significantly increased simply by increasing the bevel angle α. can be increased and durability can be ensured.
第１図は従来のフライホイール磁石回転子の縦断面図、
第２図は本考案によるフライホイール磁石回転子の縦断
面図である。
５・・・フライホイール本体、６・・・円筒部、１・・
・鍔部、８・・・歯（歯車）。Figure 1 is a longitudinal cross-sectional view of a conventional flywheel magnet rotor.
FIG. 2 is a longitudinal sectional view of a flywheel magnet rotor according to the present invention. 5...Flywheel body, 6...Cylindrical part, 1...
- Flange, 8...teeth (gear).
Claims (1)
状に外方へ折り曲げ、該鍔部の外周端に機開始動用の歯
を形成したものにおいて、該鍔部に斜角をつげ、該歯の
軸方向幅を板厚よく広くしたことを％徴とするエンジン
用フライホイール磁石回転子。One end of the outer cylindrical portion of the bowl-shaped flywheel body made of sheet metal is bent outward into a flange-like shape, and teeth for starting the engine are formed on the outer periphery of the flange, and the flange is beveled. A flywheel magnet rotor for engines that is characterized by a wide tooth width in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3771479U JPS5850134Y2 (en) | 1979-03-22 | 1979-03-22 | Flywheel magnet rotor for engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3771479U JPS5850134Y2 (en) | 1979-03-22 | 1979-03-22 | Flywheel magnet rotor for engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55135839U JPS55135839U (en) | 1980-09-27 |
| JPS5850134Y2 true JPS5850134Y2 (en) | 1983-11-15 |
Family
ID=28901289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3771479U Expired JPS5850134Y2 (en) | 1979-03-22 | 1979-03-22 | Flywheel magnet rotor for engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850134Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0616984Y2 (en) * | 1985-06-15 | 1994-05-02 | スズキ株式会社 | Engine starter |
-
1979
- 1979-03-22 JP JP3771479U patent/JPS5850134Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55135839U (en) | 1980-09-27 |
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