JPH0618058Y2 - Recoil starter - Google Patents
Recoil starterInfo
- Publication number
- JPH0618058Y2 JPH0618058Y2 JP1395787U JP1395787U JPH0618058Y2 JP H0618058 Y2 JPH0618058 Y2 JP H0618058Y2 JP 1395787 U JP1395787 U JP 1395787U JP 1395787 U JP1395787 U JP 1395787U JP H0618058 Y2 JPH0618058 Y2 JP H0618058Y2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- reel
- cylindrical portion
- screw
- clutch cylinder
- 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
Description
【考案の詳細な説明】 （産業上の利用分野） この考案は空冷内燃機関等の起動装置として用いられる
リコイルスタータに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a recoil starter used as a starting device for an air-cooled internal combustion engine or the like.
（従来の技術） 従来、スタータケース内に設けられた支軸に緩挿されて
回転するリールの内周に複数個のはやねじスプラインを
有する円筒部を一体に取付け、この円筒部に同じくスプ
ラインを有するクラツチ筒を緩挿して噛合わせ、このク
ラツチ筒をリールの回転によつて突出せしめてクラツチ
筒の先端に設けたクラツチ爪又はギヤーをフライホイー
ルと一体の凸起又はギヤーに係合せしめるようにしたリ
コイルスタータは先に出願人が提案した特願昭59-25544
1号明細書に記載されている。(Prior Art) Conventionally, a cylindrical portion having a plurality of screw thread splines is integrally attached to the inner circumference of a reel which is loosely inserted into a support shaft provided in a starter case and rotates, and the spline is also attached to the cylindrical portion. Loosely engage the clutch cylinder with the clutch cylinder so that the clutch cylinder is projected by the rotation of the reel so that the clutch claw or gear provided at the tip of the clutch cylinder is engaged with the protrusion or gear integrated with the flywheel. The recoil starter that was set is the Japanese Patent Application No. 59-25544 previously proposed by the applicant.
No. 1 specification.
（考案が解決しようとする問題点） しかしながらエンジンの冷却風をリコイルスタータを介
して取入れるものにおいては、冷却風の流れによつてリ
コイルスタータ部に種々の異物、即ちほこり、小砂、の
こくず等が前記の噛合わされたはやねじスプライン内に
付着して作動を阻害し、スタータとしての機能を失なう
という問題点があつた。(Problems to be solved by the invention) However, in the case of taking in the cooling air of the engine through the recoil starter, various foreign matters such as dust, small sand, and sawdust are collected in the recoil starter by the flow of the cooling air. However, there is a problem in that they adhere to the meshed thread splines and interfere with the operation, and lose the function as a starter.
したがつて、この考案の目的は上記欠点を除去すること
である。Therefore, the purpose of this invention is to eliminate the above-mentioned drawbacks.
（問題点を解決するための手段） この考案は上記に述べたリールの円筒部内周に一体に設
けられたはやねじスプラインと、この円筒部内に緩挿す
るクラッチ筒のはやねじスプラインの凸部側に溝を設け
ると共に、リールの円筒部でクラッチ筒の外周をクラッ
チ爪まで完全に覆うよう構成したことを要旨とするもの
である。(Means for Solving the Problems) The present invention is directed to the above described screw thread spline integrally provided on the inner circumference of the cylindrical portion of the reel, and the convex projection of the thread screw spline of the clutch cylinder loosely inserted in the cylindrical portion. The gist of the present invention is to provide a groove on the part side and to completely cover the outer circumference of the clutch cylinder up to the clutch pawl with the cylindrical part of the reel.
（作用） このように構成すると、先ずロープを引出すとリールが
ゼンマイに抗して回転し、従つて円筒部に噛合つている
クラツチ筒も同時に回転しようとするが、切溝に緩挿し
ている凸部が圧縮ばねにより回転を阻止されているの
で、クラツチ筒はスプラインにより軸方向に押出されク
ラツチ爪又はギヤーがフライホイールの凸起又はギアー
に係合する。そこでクラツチ筒の突出が止まり、凸部も
圧縮ばねと一緒に回転し始めエンジンを起動する。エン
ジンが回転を始めるとクラツチ筒はスプラインにより軸
方向に引込まれ、そのままロープを戻すとゼンマイによ
りロープはリールに巻込まれる。(Operation) With this structure, when the rope is first pulled out, the reel rotates against the mainspring, and thus the clutch cylinder engaged with the cylindrical portion also tries to rotate at the same time, but the projection loosely inserted in the kerf is used. Since the portion is prevented from rotating by the compression spring, the clutch cylinder is pushed out by the spline in the axial direction so that the clutch claw or gear engages with the protrusion or the gear of the flywheel. Then, the projection of the clutch cylinder stops, and the convex part also starts to rotate together with the compression spring to start the engine. When the engine starts to rotate, the clutch cylinder is pulled in by the spline in the axial direction, and when the rope is returned as it is, the mainspring winds the rope around the reel.
この場合、スプライン部は摺動部が少なくなり、かつ異
物が入つてもスプライン部に設けた溝に異物が逃げるた
め、作動を害さない。その上、円筒部でクラツチ筒の外
周を完全に覆うようにしたので、異物の浸入も防ぐ。In this case, the sliding portion of the spline portion is reduced, and even if a foreign matter enters, the foreign matter escapes into the groove provided in the spline portion, so that the operation is not impaired. Moreover, since the outer circumference of the clutch cylinder is completely covered with the cylindrical portion, the intrusion of foreign matter is prevented.
したがつて、前記問題点を除去できるのである。Therefore, the above problems can be eliminated.
（実施例） 第１図は本考案の一実施例を示す断面図、第２図は同じ
くその要部の分解斜視図である。図に示すようにケース
１に一体に設けられた支軸２にゼンマイ３を設け、その
一端は支軸２に、他端は支軸２上に緩挿されたリール４
にそれぞれ固定されている。このリール４にはロープ５
を捲回し、その一端はリール４に固定され、他端は図に
は示さないがケース１外に導かれ、ノブが取付けてあ
る。またリール４には円筒部4aを一体に設け、その内面
には複数個のはやねじスプライン４ｂを設けておく。一
方、これに緩挿するスプライン６ａを有するクラツチ筒
６を円筒部４ａ内部に位置せしめるが、クラツチ筒６の
円周底部には段部を有し、その段部に軸方向の切溝６６
を設けておく。またクラツチ筒６の先端には、エンジン
のクランクシヤフト端部に取付けたフライホイール７に
一体に設けられた凸起7aと係合し、噛合うように、その
軸方向に相対する位置にクラツチ爪６ｃが複数個一体に
設けられている。なお、取付位置によりフライホイール
７がクラツチ筒６と直交する位置に設けられたり、クラ
ツチ筒６と偏心して設けられた場合には凸起７ａとクラ
ツチ爪６ｃに代えて、夫々噛合うギヤーを設けてもよ
い。さらに前記支軸２に筒状のクラツチガイド８が緩挿
され、その外周に一体に設けた凸部8aがクラツチ筒６の
切溝6bに緩挿させ、クラツチ筒６がクラツチガイド８に
対し摺動可能に取付ける。また、クラツチガイド８は支
軸２の段部とワツシヤ９及びねじ１０で回転のみ可能に
保持されるが、支軸２とクラツチガイド８の間に設けら
れたスペース内にコイルばね11が圧縮されて挿入され、
回転も阻止しているが圧縮ばね１１の力以上に回転力を
与えればクラツチガイド８は回転可能である。(Embodiment) FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the essential part thereof. As shown in the figure, a mainspring 3 is provided on a support shaft 2 integrally provided on a case 1, one end of which is attached to the support shaft 2 and the other end of which is a reel 4 loosely inserted on the support shaft 2.
It is fixed to each. Rope 5 on this reel 4
Is wound around, and one end thereof is fixed to the reel 4, and the other end is guided to the outside of the case 1 and a knob is attached, although not shown in the drawing. Further, the reel 4 is integrally provided with a cylindrical portion 4a, and the inner surface thereof is provided with a plurality of screw splines 4b. On the other hand, the clutch cylinder 6 having the spline 6a loosely inserted therein is positioned inside the cylindrical portion 4a. The clutch cylinder 6 has a stepped portion at the bottom of its circumference, and the stepped portion 66 has an axial cut groove 66.
Is provided. Further, the clutch cylinder 6 has at its tip end a clutch claw at a position opposed to its axial direction so as to engage and mesh with a protrusion 7a provided integrally with a flywheel 7 attached to the crankshaft end of the engine. A plurality of 6c are integrally provided. When the flywheel 7 is provided at a position orthogonal to the clutch cylinder 6 depending on the mounting position, or when the flywheel 7 is provided eccentrically with the clutch cylinder 6, instead of the protrusion 7a and the clutch claw 6c, gears that mesh with each other are provided. May be. Further, a cylindrical clutch guide 8 is loosely inserted into the support shaft 2, and a convex portion 8a integrally provided on the outer periphery thereof is loosely inserted into a cut groove 6b of the clutch cylinder 6 so that the clutch cylinder 6 slides on the clutch guide 8. Install movably. Further, the clutch guide 8 is held rotatably only by the step portion of the support shaft 2, the washer 9 and the screw 10, but the coil spring 11 is compressed in the space provided between the support shaft 2 and the clutch guide 8. Inserted,
Although the rotation is also prevented, the clutch guide 8 can be rotated by applying a rotational force larger than that of the compression spring 11.
以上までの構成は、先に示した特願昭59-25541号のもの
と同じであるが、本考案においては円筒部4aのスプライ
ン4b及びクラツチ筒６のスプライン６ａの径方向の摺動
部の面積を少なくするため第３図(a)、(b)に示すように
各々のスプライン4b、6aの凸部側に溝4b′、6a′を設
け、また作動時、第４図に示すようにリール４の円筒部
４ａでクラツチ筒６の外周を完全に覆うことによつて異
物の浸入を防止し、更にエンジン側のフライホイール７
に一体に設けられた突起７ａとラビリンスさせるようリ
ール４の円筒部４ａをクラツチ筒６が収納された状態の
時、クラツチ爪まで覆うようにしたものである。なお、
溝4b′、6a′の断面形状は円弧状に限定されるものでは
なく、第５図(a)、(b)に示す形状のもの等でもよい。The structure up to this point is the same as that of Japanese Patent Application No. 59-25541 shown above, but in the present invention, the spline 4b of the cylindrical portion 4a and the radial sliding portion of the spline 6a of the clutch cylinder 6 are arranged. As shown in FIGS. 3 (a) and 3 (b), grooves 4b 'and 6a' are provided on the convex side of each spline 4b and 6a to reduce the area, and when operating, as shown in FIG. By completely covering the outer periphery of the clutch cylinder 6 with the cylindrical portion 4a of the reel 4, foreign matter can be prevented from entering, and the flywheel 7 on the engine side can be further prevented.
When the clutch cylinder 6 is housed in the cylindrical portion 4a of the reel 4 so as to labyrinth with the protrusion 7a provided integrally with the clutch claw, the clutch claw is also covered. In addition,
The cross-sectional shape of the grooves 4b 'and 6a' is not limited to the arc shape, but may be the shape shown in FIGS. 5 (a) and 5 (b).
（考案の効果） 以上詳細に説明したように、本考案によればリコイルス
タータを介して取入れた冷却風の流れによつてリコイル
スタータ部に種々の異物、例えばほこり、小砂、のこく
ず等がスプライン部に付着しても摺動面積が少ないので
スタータとしての機能を失うこともなく、またこの溝に
異物が逃げるため作動は害さない。その上、上記のよう
な形状によつて肉抜きの効果もあり、材料も節約でき
る。また、円筒部がクラツチ筒の外周を覆うので異物の
侵入を防ぐ等の効果が得られる。(Effect of the Invention) As described in detail above, according to the present invention, various foreign matters such as dust, small sand, and sawdust are caused in the recoil starter by the flow of the cooling air taken in through the recoil starter. Even if it adheres to the spline portion, it does not lose its function as a starter because it has a small sliding area, and foreign matter escapes into this groove, which does not hinder the operation. In addition, the shape as described above has an effect of thinning meat, and the material can be saved. Further, since the cylindrical portion covers the outer periphery of the clutch cylinder, it is possible to obtain the effect of preventing foreign matter from entering.
第１図は本考案リコイルスタータの一実施例を示す断面
図、第２図は同じくその要部の分解斜視図、第３図(a)、
(b)はリール側円筒部とクラツチ筒側のスプライン部の
断面図、第４図はスタータの作動時の断面図、第５図
(a)、(b)はスプライン部の溝の形状を示す他の例を示す
図である。 １…ケース、２…支軸、４…リール、4a…円筒部、4b…
スプライン、4b′…溝、５…ロープ、６…クラツチ筒、
6a…スプライン、6a′…溝、6b…切溝、6c…クラツチ
爪、８…クラツチガイド、8a…凸部、11…圧縮ばね。FIG. 1 is a sectional view showing an embodiment of the recoil starter of the present invention, FIG. 2 is an exploded perspective view of the same part, FIG. 3 (a),
(b) is a cross-sectional view of the reel-side cylindrical portion and the clutch cylinder-side spline portion. FIG. 4 is a sectional view of the starter in operation, FIG.
(a), (b) is a figure which shows the other example which shows the shape of the groove | channel of the spline part. 1 ... Case, 2 ... Spindle, 4 ... Reel, 4a ... Cylindrical part, 4b ...
Spline, 4b '... Groove, 5 ... Rope, 6 ... Clutch tube,
6a ... spline, 6a '... groove, 6b ... cut groove, 6c ... clutch claw, 8 ... clutch guide, 8a ... projection, 11 ... compression spring.
Claims (1)
されて回転するリールの内周に複数個のはやねじスプラ
インを有する円筒部を一体に取付け、この円筒部に同じ
くスプラインを有するクラッチ筒を緩挿して噛合わせ、
かつこのクラッチ筒には先端にクラッチ爪又はギヤーを
設けてエンジンのクランクシャフト端部に取付けられた
フライホイールと一体の凸起又はギヤーと係合せしめる
ようにし、ロープを引くことによりリールを回転してエ
ンジンを回転せしめるようにしたリコイルスタータにお
いて、リールの円筒部内周に一体に設けられたはやねじ
スプラインと、この円筒部内に緩挿するクラッチ筒のは
やねじスプラインの凸部側に溝を設けると共に、リール
の円筒部でクラッチ筒の外周をクラッチ爪まで完全に覆
うよう構成したことを特徴とするリコイルスタータ。1. A cylindrical portion having a plurality of threaded splines is integrally attached to an inner circumference of a reel which is loosely inserted into a support shaft provided in a starter case and rotates, and the cylindrical portion also has splines. Loosely insert the clutch cylinder to engage,
In addition, a clutch claw or gear is provided at the tip of this clutch cylinder so that it can be engaged with a protrusion or gear integrated with a flywheel attached to the crankshaft end of the engine, and the reel is rotated by pulling a rope. In the recoil starter designed to rotate the engine with a screw, the screw thread spline that is integrally provided on the inner circumference of the cylindrical portion of the reel and the groove of the clutch screw that is loosely inserted in the cylindrical portion are formed on the convex side of the screw screw spline. A recoil starter characterized in that the recoil starter is provided so as to completely cover the outer circumference of the clutch cylinder with the cylindrical part of the reel up to the clutch pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1395787U JPH0618058Y2 (en) | 1987-02-02 | 1987-02-02 | Recoil starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1395787U JPH0618058Y2 (en) | 1987-02-02 | 1987-02-02 | Recoil starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63121776U JPS63121776U (en) | 1988-08-08 |
| JPH0618058Y2 true JPH0618058Y2 (en) | 1994-05-11 |
Family
ID=30803502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1395787U Expired - Lifetime JPH0618058Y2 (en) | 1987-02-02 | 1987-02-02 | Recoil starter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618058Y2 (en) |
-
1987
- 1987-02-02 JP JP1395787U patent/JPH0618058Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63121776U (en) | 1988-08-08 |
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