JPH0415398B2 - - Google Patents
Info
- Publication number
- JPH0415398B2 JPH0415398B2 JP58016727A JP1672783A JPH0415398B2 JP H0415398 B2 JPH0415398 B2 JP H0415398B2 JP 58016727 A JP58016727 A JP 58016727A JP 1672783 A JP1672783 A JP 1672783A JP H0415398 B2 JPH0415398 B2 JP H0415398B2
- Authority
- JP
- Japan
- Prior art keywords
- pinion
- shaft
- cap
- collar
- cylindrical
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はマリン等のピニオンが上方向に向いた
慣性飛込式始動電動機の防水構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a waterproof structure for an inertial diving starter motor, such as a marine motor, in which the pinion faces upward.
従来は、シヤフトが露出しており、塩水による
発錆のためピニオン飛出し不能という問題があ
り、従来の対策は、シヤフトに硬質クロムメツキ
を使用していた。
In the past, the shaft was exposed and rusted due to salt water, making it impossible for the pinion to pop out.The conventional solution was to use hard chrome plating on the shaft.
上記対策はシヤフトのみに関するものであり、
シヤフトに伝わつた塩水によるスプライン部やク
ラツチ内部の発錆対策とはなつていなかつた。
The above measures only concern the shaft.
There was no countermeasure against rust on the spline and inside of the clutch caused by salt water that was transmitted to the shaft.
このため、従来、実公昭50−750号公報に記載
されるごとく、シヤフトを覆うキヤツプをピニオ
ンに固定するものもあるが、ピニオンの前進によ
り、キヤツプ先端がシヤフト先端よりピニオン前
進量以上軸方向に突出するという欠点があるのみ
ならず、ピニオン前進時にキヤツプ内部の空間が
増大することによるポンプ作用により、それ以前
にピニオンに付着した水をキヤツプ内部に吸込
み、十分な防水効果が得られないという欠点があ
つた。 For this reason, as described in Japanese Utility Model Publication No. 50-750, some caps that cover the shaft are fixed to the pinion. Not only does it have the disadvantage of protruding, but also the pumping action of the increased space inside the cap when the pinion advances draws water that had previously adhered to the pinion into the cap, making it impossible to obtain sufficient waterproofing effects. It was hot.
また、従来、実公昭52−18351号公報に記載さ
れるごとく、ピニオンの先端に円筒状のつばを設
け、このつばがハウジングの延長部に設けた環状
凹部内を軸方向に移動する構成とし、シヤフトの
先端および外周を覆うことにより外部侵入を防止
するものもあるが、ハウジングの延長部にシヤフ
トを回転自在に支持する軸受を設ける必要がある
のみならず、ハウジングの形状が複雑になり製造
上の欠点を有するものである。 Furthermore, as described in Japanese Utility Model Publication No. 52-18351, a cylindrical collar is provided at the tip of the pinion, and this collar moves in the axial direction within an annular recess provided in an extension of the housing. Some products prevent external intrusion by covering the tip and outer circumference of the shaft, but this not only requires installing a bearing on the extension of the housing to rotatably support the shaft, but also complicates the shape of the housing, making it difficult to manufacture. It has the following drawbacks.
そこで本発明は、ピニオンの前進時にシヤフト
先端よりキヤツプが突出することなく、つばとキ
ヤツプとによりシヤフトへの水の付着を防ぐこと
を目的とする。 Therefore, an object of the present invention is to prevent water from adhering to the shaft using the brim and the cap, without causing the cap to protrude from the tip of the shaft when the pinion moves forward.
さらに本発明は上記目的を簡単な構成にて達成
することを目的とする。 Furthermore, it is an object of the present invention to achieve the above object with a simple configuration.
上記目的を達成するために本発明は、鉛直方向
に配置されたシヤフト上を、上下方向に移動可能
に配置されると共に、前記シヤフトの回転が伝達
されて回転駆動されるピニオンを備えた慣性飛込
式始動電動機において、
前記ピニオンの上端に前記シヤフト外周を囲む
円筒状のつばを設け、
軸方向長さが前記ピニオンの移動距離より長く
設定された円筒部及びこの円筒部の一端側を閉塞
する端部とからなるキヤツプを、他端側開口部を
下方に向けて前記端部にて前記シヤフト先端に固
着し、
前記ピニオンのつば外周を前記キヤツプ円筒部
にて常時囲む構成とするものである。
In order to achieve the above object, the present invention provides an inertial flywheel that is arranged to be movable in the vertical direction on a shaft arranged in the vertical direction, and is equipped with a pinion that is rotationally driven by the rotation of the shaft. In the built-in starter motor, a cylindrical collar surrounding the outer periphery of the shaft is provided at the upper end of the pinion, and a cylindrical portion whose axial length is set to be longer than the movement distance of the pinion and one end side of this cylindrical portion are closed. A cap consisting of an end is fixed to the tip of the shaft at the end with the opening on the other end facing downward, and the outer periphery of the brim of the pinion is always surrounded by the cylindrical part of the cap. .
上記構成によると、ピニオンに設けたつばがシ
ヤフトとキヤツプとの間に常に入り込んだ状態に
なり、迷路が構成されるため、シヤフトへの水の
付着が防止できる。また、キヤツプはシヤフトの
先端に固着されているため、ピニオンが上方向に
移動（前進）する時にキヤツプがシヤフトから突
出することがなく、かつピニオン前進時にはキヤ
ツプ内の空気が排出され、キヤツプ内への水の侵
入が確実に防止される。さらに、キヤツプはシヤ
フトと一体に回転するため、キヤツプに付着した
水を飛散することができると共に、水を水平方向
に飛散するためこれらの水を再びかぶることをも
防止でき、キヤツプに軸受を設けることもなくキ
ヤツプの構成が簡単であり組付け性にも優れる。
According to the above configuration, the collar provided on the pinion is always stuck between the shaft and the cap, forming a labyrinth, so that water can be prevented from adhering to the shaft. In addition, since the cap is fixed to the tip of the shaft, the cap does not protrude from the shaft when the pinion moves upward (forward), and when the pinion moves forward, the air inside the cap is exhausted and flows into the cap. Water intrusion is reliably prevented. Furthermore, since the cap rotates together with the shaft, it is possible to scatter water adhering to the cap, and since the water is scattered horizontally, it is possible to prevent this water from being covered again.The cap is equipped with a bearing. The structure of the cap is simple and easy to assemble.
以下本発明を図に示す実施例について説明す
る。図において、２はクチツチカバー、２ｂはク
ラツチカバー２の一端に設けた巻締部で、クラツ
チアウタ３と巻締固定される。４はクラツチアウ
タ３の内周の楔室に収納したクラツチローラ、５
はクラツチインナで、クラツチアウタ３の内周に
ローラ４を介して挿入され、その一端にはピニオ
ン６が一体に形成されている。７はアーマチヤシ
ヤフトで、ブツシユ８を介してピニオン６が回転
自在に保持されている。９はシヤフト７の外周に
形成したヘリカルスプラインで、アウタ３の内周
に形成したヘルカルスプライン１０と噛合してい
る。１２はシヤフト７の先端付近に固定したスト
ツプリング、１３はストツプリング１２とピニオ
ン６との間に配置したリターンスプリングであ
る。そして、この構成のものはマリン用エンジン
に用いられ、ピニオン６が上方向を向いて取付け
られる。１４はピニオン６の先端に一体に形成し
た円筒状のつば、１５は円筒部及び円筒部の一端
側を閉塞する端部とからなるキヤツプで、端部を
ビス１ｂによりシヤフト７の先端にねじ締め固定
している。一方円筒部の他端側開口部はその内周
にてピニオン６のつば１４を囲んでいる。つまり
キヤツプ１５の円筒部内側に空〓を介してつば１
４の先端が入り込み、迷路を構成している。ここ
で、つば１４の先端とキヤツプ１５の底面との間
およびキヤツプ１５の先端とピニオン６の端面と
の間には、ピニオン６前進時にも、互いに接続し
ないような空間が設けてある。つまり、ピニオン
６の移動距離に対してキヤツプ１５の円筒部の軸
方向長さを長く設定しており、つば１４は常時キ
ヤツプ１５の円筒部に囲まれている。上記構成に
おいて、スタータスイツチを投入すると、アーマ
チヤシヤフト７が回転し、ヘリカルスプライン
９，１０の作用によりクラツチアウタ３およびピ
ニオン６等が図の静止位置からストツプリング１
２に当接するまで上方に前進し、図示せぬリング
ギヤにピニオンが噛合してエンジンを始動させ
る。エンジン始動後スタータスイツチを切ると、
リターンスプリング１３によりピニオン６および
アウタ３等が図の静止位置に戻される。また、ピ
ニオン６が上方向を向き、キヤツプ１５にピニオ
ン６のつば１４が入り込むことにより迷路を構成
し、防水効果を持つ。この構造により、シヤフト
７，スプライン９，１０及びクラツチ内部に塩水
等の浸入がなくなり、摺動不良，スプライン錆
付，クラツチ発錆がなくなる。
The present invention will be described below with reference to embodiments shown in the drawings. In the figure, 2 is a clutch cover, and 2b is a seam portion provided at one end of the clutch cover 2, which is secured to the clutch outer 3 by seam. 4 is a clutch roller stored in a wedge chamber on the inner circumference of the clutch outer 3;
A clutch inner is inserted into the inner periphery of the clutch outer 3 via a roller 4, and a pinion 6 is integrally formed at one end thereof. 7 is an armature shaft, and a pinion 6 is rotatably held via a bush 8. A helical spline 9 is formed on the outer periphery of the shaft 7 and meshes with a helical spline 10 formed on the inner periphery of the outer 3. 12 is a stop ring fixed near the tip of the shaft 7, and 13 is a return spring arranged between the stop ring 12 and the pinion 6. This configuration is used in a marine engine, and is installed with the pinion 6 facing upward. 14 is a cylindrical collar integrally formed at the tip of the pinion 6; 15 is a cap consisting of a cylindrical portion and an end that closes one end of the cylindrical portion; the end is screwed to the tip of the shaft 7 with a screw 1b; Fixed. On the other hand, the opening on the other end of the cylindrical portion surrounds the collar 14 of the pinion 6 on its inner periphery. In other words, the collar 1 is inserted through the air inside the cylindrical portion of the cap 15.
The tip of number 4 enters and forms a maze. Here, spaces are provided between the tip of the collar 14 and the bottom surface of the cap 15 and between the tip of the cap 15 and the end surface of the pinion 6 so that they do not connect to each other even when the pinion 6 moves forward. In other words, the axial length of the cylindrical portion of the cap 15 is set to be longer than the moving distance of the pinion 6, and the collar 14 is always surrounded by the cylindrical portion of the cap 15. In the above configuration, when the starter switch is turned on, the armature shaft 7 rotates, and the action of the helical splines 9 and 10 moves the clutch outer 3, pinion 6, etc. from the rest position shown in the figure to the stop spring 1.
2, the pinion meshes with a ring gear (not shown) and starts the engine. When you turn off the starter switch after starting the engine,
The return spring 13 returns the pinion 6, outer 3, etc. to the rest position shown in the figure. In addition, the pinion 6 faces upward and the collar 14 of the pinion 6 enters the cap 15 to form a labyrinth and have a waterproof effect. This structure prevents salt water from entering the shaft 7, splines 9 and 10, and the clutch, thereby eliminating poor sliding, rusting of the splines, and rusting of the clutch.
又、従来のピニオンへのキヤツプ付の構成（実
公昭50−750号公報）と比較し、本発明ではピニ
オン６の飛出し時に中の空気を排出する方向とな
り、飛出し後のピニオン６の回転により水を飛散
するという利点がある。 Also, compared to the conventional configuration in which the pinion is capped (Japanese Utility Model Publication No. 50-750), in the present invention, the air inside is discharged when the pinion 6 pops out, and the rotation of the pinion 6 after the pop-out is This has the advantage of scattering water.
さらに、従来のハウジングの延長部にてキヤツ
プを形成する構成（実公昭52−18351号公報）と
比較し、本発明ではキヤツプがシヤフトと一体に
回転するため水を飛散するという利点があると共
に、キヤツプに軸受部を設けることもないため、
キヤツプの構成が簡単であり組付け性にも優れる
という利点がある。 Furthermore, compared to the conventional configuration in which the cap is formed by an extension of the housing (Japanese Utility Model Publication No. 18351/1983), the present invention has the advantage that the cap rotates integrally with the shaft, which allows water to be scattered. Since there is no need to provide a bearing part on the cap,
This has the advantage that the cap has a simple structure and is easy to assemble.
なお、キヤツプ１５の固定方法は、図ではねじ
止めとなつているが、圧入，め等でもよい。ま
た、つば１４もピニオン６と一体削りの必要はな
く、円筒形状のつばをピニオン６に圧入固定して
もよい。 Although the cap 15 is fixed by screwing in the figure, it may also be fixed by press-fitting, screwing, etc. Further, the collar 14 does not need to be cut integrally with the pinion 6, and a cylindrical collar may be press-fitted and fixed to the pinion 6.
図は本発明電動機の一実施例を示す要部構成の
縦断面図である。
６…ピニオン、７…アーマチヤシヤフト、１４
…円筒状のつば、１５…キヤツプ。
The figure is a longitudinal cross-sectional view of the main parts of an embodiment of the electric motor of the present invention. 6... Pinion, 7... Armature shaft, 14
...Cylindrical brim, 15...Cap.
Claims (1)
向に移動可能に配置されると共に、前記シヤフト
の回転が伝達されて回転駆動されるピニオンを備
えた慣性飛込式始動電動機において、 前記ピニオンの上端に前記シヤフト外周を囲む
円筒状のつばを設け、 軸方向長さが前記ピニオンの移動距離より長く
設定された円筒部及びこの円筒部の一端側を閉塞
する端部とからなるキヤツプを、他端側開口部を
下方に向けて前記端部にて前記シヤフト先端に固
着し、 前記ピニオンのつば外周を前記キヤツプ円筒部
にて常時囲むよう構成したことを特徴とする慣性
飛込式始動電動機。[Scope of Claims] 1. An inertial plunge-type starter motor that is arranged to be movable in the vertical direction on a shaft arranged in the vertical direction, and equipped with a pinion that is rotationally driven by the rotation of the shaft. A cylindrical collar surrounding the outer periphery of the shaft is provided at the upper end of the pinion, and includes a cylindrical portion whose axial length is set longer than a moving distance of the pinion, and an end portion that closes one end side of the cylindrical portion. The cap is fixed to the tip of the shaft at the end with the opening on the other end facing downward, and the outer periphery of the collar of the pinion is always surrounded by the cylindrical part of the cap. Included starting motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1672783A JPS59141768A (en) | 1983-02-02 | 1983-02-02 | Inertia plunging type starter motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1672783A JPS59141768A (en) | 1983-02-02 | 1983-02-02 | Inertia plunging type starter motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59141768A JPS59141768A (en) | 1984-08-14 |
| JPH0415398B2 true JPH0415398B2 (en) | 1992-03-17 |
Family
ID=11924291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1672783A Granted JPS59141768A (en) | 1983-02-02 | 1983-02-02 | Inertia plunging type starter motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59141768A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0618060Y2 (en) * | 1987-01-21 | 1994-05-11 | いすゞ自動車株式会社 | Engine starter |
| KR920005388B1 (en) * | 1987-11-02 | 1992-07-02 | 미쯔비시 덴끼 가부시끼가이샤 | Starter device |
| DE3931256A1 (en) * | 1988-09-21 | 1990-03-29 | Mitsubishi Electric Corp | ENGINE STARTER |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5417723Y2 (en) * | 1975-07-27 | 1979-07-06 |
-
1983
- 1983-02-02 JP JP1672783A patent/JPS59141768A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59141768A (en) | 1984-08-14 |
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