JPS6128053Y2

JPS6128053Y2 -

Info

Publication number: JPS6128053Y2
Application number: JP5668379U
Authority: JP
Priority date: 1979-04-26
Filing date: 1979-04-26
Publication date: 1986-08-20
Also published as: JPS55156254U

Description

【考案の詳細な説明】本考案は内燃機関用のリコイルスタータに関す
るものである。[Detailed Description of the Invention] The present invention relates to a recoil starter for an internal combustion engine.

従来、ドツグ機構を有するリコイルスタータに
おいては、ドツグ機構を覆うリテーナを設け、該
リテーナを回転自在にケース本体の内側に設けた
軸に挿入し、バネと止めネジとにより挾持してフ
リクシヨンを起こし、このフリクシヨンによりド
ツグを出入りさせていたが、これによると重量の
重いリテーナを回転させるのでフリクシヨンが安
定せず、又、これと組合されるバネ、止めネジ及
びドツグの破損が発生する欠点があつた。 Conventionally, in a recoil starter having a dog mechanism, a retainer is provided to cover the dog mechanism, the retainer is rotatably inserted into a shaft provided inside the case body, and is held between a spring and a set screw to cause friction. This friction was used to move the dog in and out, but this had the disadvantage that the heavy retainer was rotated, making the friction unstable, and that the spring, set screw, and dog combined with it could be damaged. .

本考案は上記した欠点を除去したもので、リテ
ーナは軸に固着され、該リテーナに設けた軸部又
は軸をフリクシヨンスプリングの両端により挾持
し、該フリクシヨンスプリングの略中央部分に径
方向外方に伸びる折曲部を形成するとともに、ド
ツグの他端側に設けた突起を折曲部に緩挿するこ
とによりドツグの出し入れを制御せしめたもの
で、構造が簡単で、部品点数が少なく且つ、組立
容易で安価なリコイルスタータを提供するもので
ある。 The present invention eliminates the above-mentioned drawbacks, and the retainer is fixed to the shaft, and the shaft part or shaft provided on the retainer is held between both ends of the friction spring, and the retainer is attached radially outward to the approximate center of the friction spring. This device has a bent part that extends in the opposite direction, and the protrusion provided on the other end of the dog is loosely inserted into the bent part to control the dog's insertion and removal.It has a simple structure, has a small number of parts, and The present invention provides a recoil starter that is easy to assemble and inexpensive.

ついで、本考案の実施例を図面に基づいて詳細
に説明する。 Next, embodiments of the present invention will be described in detail based on the drawings.

第１図において、１はリコイルスタータのハウ
ジングで、その内側には軸３が固着され、この軸
３にはリール５が回転自在に取付けられている。 In FIG. 1, reference numeral 1 denotes a housing of a recoil starter, and a shaft 3 is fixed to the inside of the housing, and a reel 5 is rotatably attached to this shaft 3.

一方、該軸３の一端には軸部８を形成したリテ
ーナ７がセンターネジ９により固着されている。 On the other hand, a retainer 7 having a shaft portion 8 formed therein is fixed to one end of the shaft 3 by a center screw 9.

リール５の外周部にはローブ２を収容する凹溝
６が形成されている。又、リール５とハウジング
１との間には渦巻バネ４が配置されている。該渦
巻バネの外周側端部はハウジング１に、内周側端
部はリール５にそれぞれ固着されている。リテー
ナ７とリール５との間にはドツグ１０が配備され
ている。又、第２図に示す様に、ドツグ１０の一
端には第１の突起１１が、他端には第２の突起１
２がそれぞれ形成されている。 A concave groove 6 for accommodating the lobe 2 is formed on the outer circumference of the reel 5. Further, a spiral spring 4 is arranged between the reel 5 and the housing 1. The outer end of the spiral spring is fixed to the housing 1, and the inner end thereof is fixed to the reel 5. A dog 10 is provided between the retainer 7 and the reel 5. Further, as shown in FIG. 2, a first protrusion 11 is provided at one end of the dog 10, and a second protrusion 1 is provided at the other end.
2 are formed respectively.

更に、該第１の突起１１はリール５に設けた穴
と係合している。一方、リテーナ７の軸部８をフ
リクシヨンスプリング１５の両端１６，１７が挾
持し、該フリクシヨンスプリング１５の略中央部
分は交差してから径方向外方に伸びる折曲部１８
となつており、該折曲部１８にはドツグ１０の第
２の突起１２が緩挿している。又一方、エンジン
部側にはエンジンと連結するカツプ状のプーリ１
９が設けられ、その外周先端部には軸方向に伸び
る複数本の突出部２０（図では３本）が形成され
ている。 Furthermore, the first protrusion 11 engages with a hole provided in the reel 5. On the other hand, the shaft portion 8 of the retainer 7 is held between both ends 16 and 17 of a friction spring 15, and the approximately central portion of the friction spring 15 intersects with a bent portion 18 extending radially outward.
The second protrusion 12 of the dog 10 is loosely inserted into the bent portion 18. On the other hand, there is a cup-shaped pulley 1 connected to the engine on the engine side.
9 is provided, and a plurality of protrusions 20 (three in the figure) extending in the axial direction are formed at the outer peripheral tip thereof.

そして、本考案はロープ２の曵引によりエンジ
ンを始動させると、ドツグ１０の第２の突起１２
が、フリクシヨンスプリング１０の折曲部１８を
押した際に、第２の突起１２による押圧力が一端
１６側に作用して、一端１６と軸部８又は軸３の
周面との間の摺動摩擦を増加させるので、ドツグ
１０の径方向外方への揺動が確実になる。 According to the present invention, when the engine is started by pulling the rope 2, the second protrusion 12 of the dog 10
However, when the bent portion 18 of the friction spring 10 is pressed, the pressing force by the second protrusion 12 acts on the end 16 side, and the gap between the one end 16 and the circumferential surface of the shaft portion 8 or the shaft 3 is Since the sliding friction is increased, the radially outward swinging of the dog 10 is ensured.

その結果、ドツグ１０の係合突起１４とプーリ
１９の突出部２０との係合が確実且つ強固に保持
される。 As a result, the engagement between the engagement protrusion 14 of the dog 10 and the protrusion 20 of the pulley 19 is held securely and firmly.

次いで、エンジンの始動に伴なつて、ロープ２
の曵引が解放された際には、渦巻バネ４の弾性に
より逆方向に回転させられるリール５と共に、図
上時計廻り方向に回転するドツグ１０の第２の突
起１２が、フリクシヨンスプリング１５の他端１
７側に連接する部分を引張つて他端１７と軸部８
又は軸３とが接触圧力を増加させるので、第２の
突起１２が折曲部１８に支承されてドツグ１０を
径方向内方へ向つて確実に揺動させ、その結果、
ドツグ１０とプーリ１９の係合が確実に解除され
る。 Next, as the engine starts, the rope 2
When the towing is released, the reel 5 is rotated in the opposite direction by the elasticity of the spiral spring 4, and the second protrusion 12 of the dog 10, which rotates in the clockwise direction in the figure, is rotated by the force of the friction spring 15. Other end 1
Pull the part connected to the 7 side and connect the other end 17 and the shaft part 8.
Or, since the contact pressure with the shaft 3 increases, the second protrusion 12 is supported by the bent portion 18 and reliably swings the dog 10 inward in the radial direction, and as a result,
The engagement between the dog 10 and the pulley 19 is reliably released.

又、本考案は中央で交差して伸びるフリクシヨ
ンスプリング１５の折曲部１８により生起するバ
ネ力を利用して、フリクシヨンスプリング１５の
両端１６，１７で軸部８又は軸３を挾持する態様
としているため、軸部８又は軸３の径がばらつい
ても、フリクシヨンスプリング１５と軸部８又は
軸３との間のフリクシヨンの変動を低く押えるこ
とができる。 Further, the present invention has an aspect in which the shaft portion 8 or the shaft 3 is held between both ends 16 and 17 of the friction spring 15 by utilizing the spring force generated by the bent portion 18 of the friction spring 15 extending in a manner that intersects at the center. Therefore, even if the diameter of the shaft portion 8 or the shaft 3 varies, fluctuations in the friction between the friction spring 15 and the shaft portion 8 or the shaft 3 can be suppressed to a low level.

更に、本考案のフリクシヨンスプリングは、中
央に交差した部分を有するので、構造簡単にして
軽量化され、且つ外力の作用によつても折曲部の
変形が少なく、又一端及び他端側は軸部との嵌着
が確実である。 Furthermore, since the friction spring of the present invention has an intersecting part in the center, the structure is simplified and lightened, and the bending part is less deformed even by the action of external force, and one end and the other end are The fit with the shaft is reliable.

[Brief explanation of the drawing]

第１図は本考案に係るリコイルスタータの断面
図、第２図は本考案の要部を示す側面図である。１……ハウジング、２……ロープ、３……軸、
４……渦巻バネ、５……リール、６……凹溝、７
……リテーナ、８……軸部、９……センターネ
ジ、１０……ドツグ、１１……第１の突起、１２
……第２の突起、１４……係合突起、１５……フ
リクシヨンスプリング、１６……一端、１７……
他端、１８……折曲部、１９……プーリ、２０…
…突出部。 FIG. 1 is a sectional view of a recoil starter according to the present invention, and FIG. 2 is a side view showing the main parts of the present invention. 1...Housing, 2...Rope, 3...Shaft,
4...Spiral spring, 5...Reel, 6...Concave groove, 7
... Retainer, 8 ... Shaft, 9 ... Center screw, 10 ... Dog, 11 ... First protrusion, 12
... second projection, 14 ... engagement projection, 15 ... friction spring, 16 ... one end, 17 ...
Other end, 18... bending part, 19... pulley, 20...
...protrusion.

Claims

[Scope of utility model registration request]

A first protrusion 11 attached to one end of the reel 5 is rotatably held on a shaft 3 fixed to the housing 1, and a retainer 7 is fixed to one end of the shaft 3. In a recoil starter including a dog 10 that is swingably engaged with a reel 5, a second protrusion 12 is provided on the other end of the dog 10, and a shaft portion 8 provided on the retainer 7 is provided.
Alternatively, the shaft 3 has both end portions 16 and 17 having a substantially arcuate shape and having one end intersecting each other, and the both end portions 16 extending in a substantially radial direction from the end on the side where the both end portions 16 and 17 intersect. , 17, and the second protrusion 12 of the dog 10 is loosely inserted into the bent part 18.