JPS6212376B2 - - Google Patents
Info
- Publication number
- JPS6212376B2 JPS6212376B2 JP56014261A JP1426181A JPS6212376B2 JP S6212376 B2 JPS6212376 B2 JP S6212376B2 JP 56014261 A JP56014261 A JP 56014261A JP 1426181 A JP1426181 A JP 1426181A JP S6212376 B2 JPS6212376 B2 JP S6212376B2
- Authority
- JP
- Japan
- Prior art keywords
- adjustment screw
- idle adjustment
- idle
- screw
- support member
- 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
- 230000002265 prevention Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 241000234435 Lilium Species 0.000 description 3
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M3/00—Idling devices for carburettors
- F02M3/06—Increasing idling speed
- F02M3/065—Increasing idling speed by randomly altering the throttle valve stop
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
【発明の詳細な説明】
本発明は気化器のアイドル調整ねじに係り、特
に、アイドル調整ねじの戻り防止機構に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an idle adjustment screw for a carburetor, and more particularly to a mechanism for preventing the idle adjustment screw from returning.
第１図は特開昭54−76727号公報に見られるよ
うな従来のアイドル調整ねじの取付け機構を説明
する可変ベンチユリ型気化器の要部断面図であ
る。気化器本体１の横向きの吸気路内には絞り弁
軸６に固定された絞り弁５が設置され、絞り弁軸
６の気化器本体１外の部分には絞り弁レバー４が
固定されている。この絞り弁レバー４の端面には
支持板７に螺合したアイドル調整ねじ２の先端が
接触し、アイドル調整ねじ２の段付き部を支持板
７との間にはコイル状のスプリング３を巻回して
いる。即ち、このスプリング３のばね力で支持板
７とアイドル調整ねじ２とは固定され、アイドル
調整ねじ２を回転させなければ絞り弁５のアイド
ル開度は変化しない。なお、支持板７は気化器本
体１に固定されている板である。 FIG. 1 is a sectional view of a main part of a variable bench lily type carburetor, illustrating a conventional idle adjustment screw mounting mechanism as disclosed in Japanese Patent Application Laid-open No. 76727/1983. A throttle valve 5 fixed to a throttle valve shaft 6 is installed in the horizontal intake passage of the carburetor body 1, and a throttle valve lever 4 is fixed to a portion of the throttle valve shaft 6 outside the carburetor body 1. . The end of the throttle valve lever 4 comes into contact with the tip of the idle adjustment screw 2 screwed onto the support plate 7, and a coiled spring 3 is wound between the stepped portion of the idle adjustment screw 2 and the support plate 7. It's spinning. That is, the support plate 7 and the idle adjustment screw 2 are fixed by the spring force of the spring 3, and the idle opening degree of the throttle valve 5 does not change unless the idle adjustment screw 2 is rotated. Note that the support plate 7 is a plate fixed to the carburetor main body 1.
しかるに実際にエンジンが作動しているときは
気化器本体１は激しく振動するので、支持板７に
設けたねじにアイドル調整ねじ２を螺合させてス
プリング３のばね力で押しただけではアイドル調
整ねじ２が回転し易い。また、エンジンルームを
点検する際にアイドル調整ねじ２に接触して絞り
弁レバー４との接触位置を移動させる場合がある
という欠点をもつている。 However, when the engine is actually running, the carburetor body 1 vibrates violently, so it is not possible to adjust the idle by simply screwing the idle adjustment screw 2 into the screw provided on the support plate 7 and pushing it with the spring force of the spring 3. Screw 2 is easy to rotate. Another disadvantage is that when inspecting the engine room, the idle adjustment screw 2 may be contacted and the contact position with the throttle valve lever 4 may be moved.
本発明はアイドル調整ねじの位置を確実に維持
させるのに好適なアイドル調整ねじの戻り防止機
構を提供することを目的とし、その特徴とすると
ころは、アイドル調整ねじの頭部とねじ部との間
に形成した丸棒部にローレツトを施すと共に、支
持部材をコの字形に形成して対向する２辺のうち
絞り弁レバーに近接した板にねじ孔を設け、か
つ、丸棒部が貫通する板の孔にゴムホルダを装着
し、丸棒部の端部と絞り弁レバーに近接した板と
の間に介在させた弾性部材の弾力およびローレツ
ト部とゴムホルダとの固着力とによつて、アイド
ル調整ねじを保持するごとく構成したことにあ
る。 An object of the present invention is to provide an idle adjustment screw return prevention mechanism suitable for maintaining the position of the idle adjustment screw reliably. The round bar formed in between is knurled, and the support member is formed into a U-shape, and a screw hole is provided in the plate near the throttle valve lever of the two opposing sides, and the round bar passes through. A rubber holder is attached to the hole in the plate, and the idle is adjusted by the elasticity of the elastic member interposed between the end of the round bar and the plate close to the throttle valve lever and the adhesion between the knurled part and the rubber holder. The reason is that it is designed to hold screws.
第２図は本発明の一実施例であるアイドル調整
ねじの戻り防止機構の斜視図で、第１図と同じ部
分には同一符号を付してある。気化器本体１には
コの字形の支持枠８が固定されているが、この支
持枠８の対向する２辺にはアイドル調整ねじ１２
のねじ部９が螺合するねじ孔と、丸棒部１０を貫
通させると共にこの部分に固定した環状のゴムホ
ルダ１４をローレツト部１１に接触するようにし
ている。また、支持枠８の絞り弁レバー４に近い
辺の内側とアイドル調整ねじ１２の丸棒部１０の
端面との間に、コイル状のスプリング３を介在さ
せている。 FIG. 2 is a perspective view of an idle adjustment screw return prevention mechanism according to an embodiment of the present invention, in which the same parts as in FIG. 1 are designated by the same reference numerals. A U-shaped support frame 8 is fixed to the carburetor body 1, and idle adjustment screws 12 are installed on two opposing sides of the support frame 8.
A circular rubber holder 14 is passed through the screw hole into which the threaded portion 9 is screwed, and a round bar portion 10 is inserted therethrough, and is fixed to this portion so as to come into contact with the knurled portion 11. Further, a coil-shaped spring 3 is interposed between the inner side of the support frame 8 near the throttle valve lever 4 and the end surface of the round bar portion 10 of the idle adjustment screw 12.
このように支持枠８とアイドル調整ねじ１２と
はねじ部９、スプリング３およびゴムホルダ１４
によつて緊密に結合されているので、エンジン回
転による振動が加わつてもアイドル調整ねじ１２
が回転してゆるむことはない。また、絞り弁５の
アイドル開度を調節する必要が生じた時はアイド
ル調整ねじの頭部１３を回転させれば、従来と同
様に容易に調節することが可能である。 In this way, the support frame 8 and the idle adjustment screw 12 are connected to the threaded part 9, the spring 3, and the rubber holder 14.
Since the idle adjustment screw 12 is tightly connected, even if vibrations due to engine rotation are applied, the idle adjustment screw
will not rotate and loosen. Further, when it becomes necessary to adjust the idle opening degree of the throttle valve 5, it is possible to easily adjust the idle opening degree by rotating the head 13 of the idle adjusting screw as in the conventional case.
本実施例のアイドル調整ねじの戻り防止機構
は、コの字形の支持枠にアイドル調整ねじのねじ
部を螺合させるねじ孔と丸棒部を貫通させるゴム
ホルダ付きの孔とを設け、このゴムホルダと丸棒
部に形成したローレツト部とを密着させることに
よつて、アイドル調整ねじを確実に保持すること
ができるという効果が得られる。 The idle adjustment screw return prevention mechanism of this embodiment has a U-shaped support frame provided with a screw hole into which the threaded part of the idle adjustment screw is screwed and a hole with a rubber holder that passes through the round bar part. By closely contacting the knurled portion formed on the round bar portion, the effect that the idle adjustment screw can be held securely can be obtained.
上記実施例は可変ベンチユリ型気化器の場合を
例示したが、これに限らず一般的な気化器にも同
様に適用できる。 Although the above embodiment has been exemplified in the case of a variable bench lily type carburetor, the present invention is not limited to this and can be similarly applied to a general carburetor.
本発明のアイドル調整ねじの戻り防止機構は、
比較的簡単な構成でアイドル調整ねじの位置を確
実に保持することができるという効果をもつてい
る。 The idle adjustment screw return prevention mechanism of the present invention is as follows:
This has the effect of being able to reliably hold the position of the idle adjustment screw with a relatively simple configuration.
第１図は従来のアイドル調整ねじの取付け機構
を説明する可変ベンチユリ型気化器の要部断面
図、第２図は本発明の一実施例であるアイドル調
整ねじの戻り防止機構の斜視図である。
１……気化器本体、２，１２……アイドル調整
ねじ、３……スプリング、４……絞り弁レバー、
５……絞り弁、６……絞り弁軸、７……支持板、
８……支持枠、９……ねじ部、１０……丸棒部、
１１……ローレツト部、１３……頭部、１４……
ゴムホルダ。
FIG. 1 is a cross-sectional view of a main part of a variable bench lily type carburetor, illustrating a conventional idle adjustment screw attachment mechanism, and FIG. 2 is a perspective view of an idle adjustment screw return prevention mechanism, which is an embodiment of the present invention. . 1... Carburetor body, 2, 12... Idle adjustment screw, 3... Spring, 4... Throttle valve lever,
5... Throttle valve, 6... Throttle valve shaft, 7... Support plate,
8...Support frame, 9...Threaded part, 10...Round bar part,
11...Knurled part, 13...Head, 14...
rubber holder.
Claims (1)
部材と、この支持部材の上記ねじ孔に螺合するね
じ部を先端に形成したアイドル調整ねじと、この
アイドル調整ねじの頭部と上記支持部材との間に
介在させた弾性部材とを備え、この弾性部材の弾
力によつて上記アイドル調整ねじを上記支持部材
に係止させるアイドル調整ねじの戻り防止機構に
おいて、上記アイドル調整ねじの頭部と上記ねじ
部との間に形成した丸棒部にローレツト部を設け
ると共に、上記支持部材をコの字形に形成して対
向する２辺のうち上記絞り弁レバーに近接した板
に上記ねじ孔を設け、かつ、上記丸棒部が貫通す
る板の孔にゴムホルダを装着し、上記丸棒部の端
部と上記絞り弁レバーに近接した板との間に介在
させた上記弾性部材の弾力および上記ローレツト
部と上記ゴムホルダとの固着力とによつて、上記
アイドル調整ねじを保持するごとく構成したこと
を特徴とするアイドル調整ねじの戻り防止機構。1. A support member fixed to the carburetor body and having a screw hole formed therein, an idle adjustment screw having a threaded portion formed at its tip to be screwed into the screw hole of this support member, the head of this idle adjustment screw, and the support member mentioned above. and an elastic member interposed between the idle adjustment screw and the idle adjustment screw, the mechanism for preventing the idle adjustment screw from returning to the idle adjustment screw, which locks the idle adjustment screw to the support member by the elasticity of the elastic member. A knurled portion is provided on the round bar portion formed between the support member and the threaded portion, and the support member is formed into a U-shape, and the screw hole is provided in a plate near the throttle valve lever among the two opposing sides. and a rubber holder is attached to a hole in a plate through which the round bar penetrates, and the elasticity of the elastic member interposed between the end of the round bar and a plate close to the throttle valve lever and the A return prevention mechanism for an idle adjusting screw, characterized in that the idle adjusting screw is held by the adhesive force between the knurled portion and the rubber holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1426181A JPS57129232A (en) | 1981-02-04 | 1981-02-04 | Mechanism for preventing return of idling adjusting screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1426181A JPS57129232A (en) | 1981-02-04 | 1981-02-04 | Mechanism for preventing return of idling adjusting screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57129232A JPS57129232A (en) | 1982-08-11 |
| JPS6212376B2 true JPS6212376B2 (en) | 1987-03-18 |
Family
ID=11856141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1426181A Granted JPS57129232A (en) | 1981-02-04 | 1981-02-04 | Mechanism for preventing return of idling adjusting screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57129232A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5123783U (en) * | 1974-08-06 | 1976-02-21 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4976153U (en) * | 1972-10-20 | 1974-07-02 |
-
1981
- 1981-02-04 JP JP1426181A patent/JPS57129232A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5123783U (en) * | 1974-08-06 | 1976-02-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57129232A (en) | 1982-08-11 |
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