JPS5943978A - Flywheel magnet of internal-combustion engine - Google Patents
Flywheel magnet of internal-combustion engineInfo
- Publication number
- JPS5943978A JPS5943978A JP15460682A JP15460682A JPS5943978A JP S5943978 A JPS5943978 A JP S5943978A JP 15460682 A JP15460682 A JP 15460682A JP 15460682 A JP15460682 A JP 15460682A JP S5943978 A JPS5943978 A JP S5943978A
- Authority
- JP
- Japan
- Prior art keywords
- flywheel
- center
- outer side
- side member
- vibration damping
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
- F02P1/02—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage the generator rotor being characterised by forming part of the engine flywheel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
不発明は、クランク軸に固定されているフライホイール
に永久磁石を保持し、クランクケース側に点火コイルを
配置してなる内燃機関のフライホイールマグネトに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flywheel magneto for an internal combustion engine, in which a permanent magnet is held in a flywheel fixed to a crankshaft, and an ignition coil is arranged on the crankcase side.
本出願人は、昭和５６年第１７９８５２号特許願に添付
した明却１書および図面により、「クランク軸に固定さ
れるボス部と永久磁石を保持するカップ部との結合によ
ってフライホイールを形成し、カップ部のボス部結合部
と永久磁石保持部との中間部の肉厚を、カップ部のボス
部結合部の肉厚に比して薄く形成した内燃機関のフライ
ホイールマグネト」をすでに提案している。Based on the Memorandum of Understanding and the drawings attached to the Patent Application No. 179852 of 1981, the applicant states that ``a flywheel is formed by the combination of a boss portion fixed to the crankshaft and a cup portion holding a permanent magnet. has already proposed a flywheel magnet for an internal combustion engine in which the wall thickness of the intermediate portion between the boss connecting portion of the cup portion and the permanent magnet holding portion is thinner than the wall thickness of the boss connecting portion of the cup portion. ing.
上記スでに提案しているフライホイールマグネトによれ
ば、フライホイールの永久磁石保持部側に生ずる振動の
、ボス部側への伝達を抑制することが可能となる。According to the flywheel magnet proposed above, it is possible to suppress transmission of vibrations generated on the permanent magnet holding portion side of the flywheel to the boss portion side.
しかしながら、上記すでに提案しているフライホイール
マグネトにあっては、フライホイールの構成部材の全体
があくまで剛的に結合されており、その中心側部材と外
方側部材とを剛性上完全に分離することが不可能である
。また、中心側部材と外方側部材との剛性上の分離をよ
り確実化するためには、中心側部材と外方側部材との中
間部の肉厚をより薄（する必要があり、フライホイール
の強度維持が困難となる。However, in the flywheel magneto already proposed above, the entire constituent members of the flywheel are rigidly connected, and the center side member and the outer side member are completely separated in terms of rigidity. It is impossible. In addition, in order to ensure the rigid separation between the center side member and the outer side member, the wall thickness of the intermediate part between the center side member and the outer side member needs to be thinner, and the It becomes difficult to maintain the strength of the wheel.
本発明は、フライホイールの強度を低下することなく、
その外方側部材に生ずる撮動の中ｔｖ （１１１１部月
への伝達を抑制可能とすることを目的とする。The present invention does not reduce the strength of the flywheel.
The object is to be able to suppress the transmission of the image to the medium tv (1111 part) that occurs on the outer side member.
上記目的を達成するために、本発明に係る内燃機関のフ
ライホイールマグネトは、フライホイールの中心１（１
１１部月と外方１ｕ１１部材との間に振動減衰部材を介
装するようにしたものである。In order to achieve the above object, a flywheel magneto for an internal combustion engine according to the present invention has a flywheel center 1 (1
A vibration damping member is interposed between the 11th part and the outer 1u11 member.
以下、本発明の実施例を図面を参照してｈ発明する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
？Ｐ、１図は本発明を船外（賎に適用した第１実施例を
一部破断して示す佃面図、第２図は」二記第１実施例に
係るフライホイールを拡大して示す断面図である。? Figure 1 is a partially cutaway view of the first embodiment in which the present invention is applied to an outboard vessel, and Figure 2 is an enlarged view of the flywheel according to the first embodiment. FIG.
エンジン１０には、第１図に示すように、フライホイー
ルマグネト１１が形１ｊ２され、クランク軸１２の十９
１１Ａ部にはフライホイール１３が同定されている。フ
ライホイール１３には永久磁石１４が保持され、クラン
クケース１５には上記永久磁石１４に対向する点火コイ
ル１６が配設されている。In the engine 10, as shown in FIG.
The flywheel 13 is identified in the section 11A. A permanent magnet 14 is held in the flywheel 13, and an ignition coil 16 facing the permanent magnet 14 is disposed in the crankcase 15.
すなわち、フライホイール１３が回転すると、点火コイ
ル１６をＪ（＜磁束が変化することから、点火コイル１
６に交流電圧が誘起可能となっている。That is, when the flywheel 13 rotates, the ignition coil 16 is
6, an alternating current voltage can be induced.
また、フライホイール１３には永久磁石１７八。Further, the flywheel 13 is provided with a permanent magnet 178.
１７Ｂが固定され、クランクケース１５にはバルサコイ
ル１８が配設されている。すなわぢ、永久磁石１７Ａ、
１７Ｂは、クランク軸１２が一回転する間にバルサコイ
ル１８にそれぞれ１回対向し、その結果バルサコイル１
８に点火時期イぎ号としての電気パルスを誘起可能とし
ている。17B is fixed, and a balsa coil 18 is disposed in the crankcase 15. In other words, permanent magnet 17A.
17B each opposes the balsa coil 18 once during one rotation of the crankshaft 12, and as a result, the balsa coil 1
8, it is possible to induce an electric pulse as the ignition timing signal.
フライホイール１３は、第２図に示すように、クランク
軸１２に固定されるボス部１９と、永久磁石１４を保持
するカップ部２０と、カッ２０部２０の外周側に設けら
れるリングギヤ２１と、リングギヤ２１にリベツ）２１
Ａによって固定される緊急スタート用の７ランジ２２と
を備えている。ここで、この第１実施例においては、ボ
ス部１９が中心側部材を構成するとともに、カップ部２
０、リングギヤ２１およびフランジ２２が外方側部材を
構成し、これら中心側部制と外方側部材とは、両者間に
圧入状態で嵌合せしめられる振動減衰部材としての環状
で磁気導通性を有するゴム２３を介して一体化されてい
る。なお、上記ゴム２３は、実質的に振動減衰部材を構
成するもの−Ｃあれば、合成樹脂等の他の材質からなる
ものに代替可能である。＋ｌこ、−トｄ己ゴｌ、２３は
、ボスｇｌｌ １９とカッ−） ７ｒ＋ｒ、ン０との間
に圧入嵌合するものでなく、加硫接着、ｌ）、（を付等
によってボス＋ｉＫ １９ 、ｉ３よびカップ部２０に
接合されるものて゛あってもよい。As shown in FIG. 2, the flywheel 13 includes a boss portion 19 fixed to the crankshaft 12, a cup portion 20 holding the permanent magnet 14, and a ring gear 21 provided on the outer peripheral side of the cup portion 20. Rivets on ring gear 21) 21
7 lunges 22 for emergency start fixed by A. Here, in this first embodiment, the boss portion 19 constitutes the center side member, and the cup portion 2
0, the ring gear 21 and the flange 22 constitute the outer side member, and the center side member and the outer side member are annular and magnetically conductive as a vibration damping member that is press-fitted between them. They are integrated through a rubber 23 that has Note that the rubber 23 can be replaced with another material such as synthetic resin, as long as it substantially constitutes a vibration damping member. 23 is not a press-fit fit between boss gll 19 and 0, but is vulcanized adhesive, l), (attached etc.) to boss +iK. 19, i3 and the cup portion 20 may also be provided.
θこに、上記第１実施例の作用について説明する。θ Now, the operation of the first embodiment will be explained.
上記フライホイールマグネト１１のフライホイール１３
ば、その中４’） ４１１１１部月とタト方４則ｉπし
才とをゴム２３の存在によって剛性上６日ｆｌトされ、
したがってカンプ′部２〔）、リングギヤ２１等からな
る外方１１１（目ｒＪ［ｌ利に生ずる振動はゴム２３に
よって吸収され、中ｉ＋’ｒ １１’ｌｌｌ ｉ’＋ｌ
（材に伝達されることがンよ（、クランク軸１２の撮動
の増大化、フライホイールマグネト月自身の破壊を防止
することが可能となる。また、フライホイール１３は、
その中心側部材と外方側ｒｒｑｓ材とがそれぞれ充分な
強度を備えた状態ト°でザノ・］３によって強固に一体
化されることから、上記剛１１ト上の／ＴＸ＞離によっ
て９Ｆｌｉ ＩＪ’代ドを生ずることがない。Flywheel 13 of the above flywheel magneto 11
If, among them, 4') 41111 part moon and tato direction 4 law iπ and sai are 6 days flt on the rigidity due to the presence of rubber 23,
Therefore, vibrations occurring in the outer part 111 (rJ[l), which consists of the camp' part 2 [), the ring gear 21, etc., are absorbed by the rubber 23, and the inner part i+'r 11'llll i'+l
(It is possible to prevent the flywheel magneto from being transmitted to the material (), increasing the imaging of the crankshaft 12, and preventing the flywheel magneto itself from being destroyed. Also, the flywheel 13
Since the center side member and the outer side rrqs material are firmly integrated by Zano・]3 in a state with sufficient strength, 9Fli IJ 'There is no possibility of deterioration.
また、１−記ゴム２３は磁気導通性を有していることか
ら、永久磁石１４と点火コイル１６との間、永久磁石１
７Ａ、１７Ｂとバルサコイル１８との間に形成されるべ
き閉磁路がゴム２３によって分断されることがない。な
お、ゴム２３が非磁気導通性である場合には、第２図に
２点４１１線で示すように、ボス部１９とカップ部２０
とを金属片またはリード線２４で結合することにより、
上記閉磁路を形成することが可能となる。In addition, since the rubber 23 described in 1- has magnetic conductivity, the permanent magnet 1
The closed magnetic path to be formed between 7A, 17B and the balsa coil 18 is not interrupted by the rubber 23. Note that when the rubber 23 is non-magnetic conductive, the boss portion 19 and the cup portion 20
By connecting them with a metal piece or lead wire 24,
It becomes possible to form the above-mentioned closed magnetic path.
第３図は本発明の第２実施例に係るフライホイール２５
を拡大して示す断面図である。この第２実施例において
は、ボス部１９とカップ部２ｏとをリベット２６によっ
て一体結合し、これらのボス部１９およびカップ部２０
を中心側部材とし、リングギヤ２１およびフランジ２２
を外方側部材として、カップ部２０とリングギヤ２１と
の間に撮動減衰部拐としてのゴム２７を介装するように
したものである。FIG. 3 shows a flywheel 25 according to a second embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view. In this second embodiment, the boss portion 19 and the cup portion 2o are integrally connected by a rivet 26, and the boss portion 19 and the cup portion 20 are
is the center side member, the ring gear 21 and the flange 22
is used as an outer side member, and a rubber 27 as a pickup damping member is interposed between the cup portion 20 and the ring gear 21.
上記第２実施例によれば、フライホイール２５０回転中
心から大なる半径位置にあるとともに、フライホイール
２５の全質量中に占める質量の割合が犬であるリングギ
ヤ２１に生ずる撮動が、ゴト２７によって吸収され、中
心側部材に伝達される口とがない。したがって、ｎｉｔ
記第１実施例におけると同様に、フライホイール２５の
強度を低下することなく、外方側部材に生ずる振動の中
Ｉし側部相への伝達をより確実に抑制することが可能と
なる。According to the second embodiment, the ring gear 21 is located at a large radius from the center of rotation of the flywheel 250 and has a large proportion of the total mass of the flywheel 25. There is no absorption and transmission to the central member. Therefore, nit
As in the first embodiment, it is possible to more reliably suppress the transmission of vibrations generated in the outer side member to the inner side part without reducing the strength of the flywheel 25.
以上のように、本発明に係る内燃機関のフライホイール
マグネトは、フライホイールの中心側部材と外方側部拐
との間に撮動減衰部材を介装するようにしたので、中心
側部拐と外方側部材とがそれぞれ充分な強度を備えた状
態下で振動減衰部制を弁して強固に一体化されるととも
に、中心１１１部材と外方側部材とが剛性上分離される
こととなり、フライホイールの強度を低下することなく
、外方仙部月に生ずる振動の中心側部材への伝達をより
確実に抑制することが０」能となる。As described above, in the flywheel magneto for an internal combustion engine according to the present invention, since the imaging damping member is interposed between the center side member and the outer side member of the flywheel, the center side member and the outer side member are interposed. and the outer side member are firmly integrated by valve the vibration damping member under the condition that each has sufficient strength, and the center 111 member and the outer side member are separated in terms of rigidity. This makes it possible to more reliably suppress the transmission of vibrations occurring in the outer sacral region to the central member without reducing the strength of the flywheel.
第１図は本発明を船外機に適用した７ＰＪ１実施例を一
部破断して示す側面図、第２因は第１図のフライホイー
ルを拡大して示す断面図、第３図は本発明の第２実施例
に係るフライホイールを拡大して示す断面図である。
１１−゛°フライホイールマグネト、１３．２５・・・
フライホイール、１４・・・永久磁石、１５・・・クラ
ンクケース、１６・・・点火コイル、１９・・・ホス部
、２０・・・カップ部、２１・・・リングギヤ、２２・
・・フランジ、２３．２７・・・ゴム。
代理人 弁理士 堪 川 修 治Fig. 1 is a partially cutaway side view of a 7PJ1 embodiment in which the present invention is applied to an outboard motor, the second cause is an enlarged cross-sectional view of the flywheel in Fig. 1, and Fig. 3 is a side view showing the present invention applied to an outboard motor. FIG. 2 is an enlarged sectional view showing a flywheel according to a second embodiment of the present invention. 11-゛° flywheel magneto, 13.25...
Flywheel, 14... Permanent magnet, 15... Crank case, 16... Ignition coil, 19... Host part, 20... Cup part, 21... Ring gear, 22...
...Flange, 23.27...Rubber. Agent Patent Attorney Shuji Tankawa
Claims (1)
に永久磁石を保持し、クランクケース側に点火コイルを
配置してなる内燃機関のフライホイールマグネトにおい
て、フライホイールの中心側部材と外方側部側との間に
摂動減衰部判を介装したことをＩ持仏とする内燃機関の
フライホイールマグネト。(1) In a flywheel magneto for an internal combustion engine, in which a permanent magnet is held in a flywheel fixed to the crankshaft and an ignition coil is arranged on the crankcase side, the center side member and the outer side side of the flywheel are used. A flywheel magneto for an internal combustion engine has a perturbation damping section interposed between the magneto and the magneto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15460682A JPS5943978A (en) | 1982-09-07 | 1982-09-07 | Flywheel magnet of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15460682A JPS5943978A (en) | 1982-09-07 | 1982-09-07 | Flywheel magnet of internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5943978A true JPS5943978A (en) | 1984-03-12 |
Family
ID=15587851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15460682A Pending JPS5943978A (en) | 1982-09-07 | 1982-09-07 | Flywheel magnet of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943978A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355769U (en) * | 1986-09-24 | 1988-04-14 | ||
| JPH02250925A (en) * | 1989-03-24 | 1990-10-08 | Sumitomo Metal Ind Ltd | Production of ferritic stainless steel sheet |
| JPH04210425A (en) * | 1990-12-12 | 1992-07-31 | Nkk Corp | Production of ferritic stainless steel excellent in ridging resistance |
| JPH0552400U (en) * | 1991-12-16 | 1993-07-13 | 本田技研工業株式会社 | Anti-vibration device for vertical engine |
| CN103111532A (en) * | 2013-02-07 | 2013-05-22 | 重庆理工大学 | Connection method for shaft sleeve and cylinder body of motorboat outboard engine flywheel |
-
1982
- 1982-09-07 JP JP15460682A patent/JPS5943978A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355769U (en) * | 1986-09-24 | 1988-04-14 | ||
| JPH02250925A (en) * | 1989-03-24 | 1990-10-08 | Sumitomo Metal Ind Ltd | Production of ferritic stainless steel sheet |
| JPH04210425A (en) * | 1990-12-12 | 1992-07-31 | Nkk Corp | Production of ferritic stainless steel excellent in ridging resistance |
| JPH0819471B2 (en) * | 1990-12-12 | 1996-02-28 | 日本鋼管株式会社 | Method for producing ferritic stainless steel with excellent ridging resistance |
| JPH0552400U (en) * | 1991-12-16 | 1993-07-13 | 本田技研工業株式会社 | Anti-vibration device for vertical engine |
| CN103111532A (en) * | 2013-02-07 | 2013-05-22 | 重庆理工大学 | Connection method for shaft sleeve and cylinder body of motorboat outboard engine flywheel |
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