JPS5877133A - Control device of carburetor throttle valve - Google Patents

Control device of carburetor throttle valve

Info

Publication number
JPS5877133A
JPS5877133A JP17581881A JP17581881A JPS5877133A JP S5877133 A JPS5877133 A JP S5877133A JP 17581881 A JP17581881 A JP 17581881A JP 17581881 A JP17581881 A JP 17581881A JP S5877133 A JPS5877133 A JP S5877133A
Authority
JP
Japan
Prior art keywords
throttle valve
reel
cable
groove
valve shaft
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
Application number
JP17581881A
Other languages
Japanese (ja)
Inventor
Fumio Yomo
四方 文夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mikuni Corp
Original Assignee
Mikuni Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mikuni Corp filed Critical Mikuni Corp
Priority to JP17581881A priority Critical patent/JPS5877133A/en
Publication of JPS5877133A publication Critical patent/JPS5877133A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D11/00Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/04Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages

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)

Abstract

PURPOSE:To easily control a car speed, by fixing a reel to a throttle valve shaft, forming a bottom surface of the reel to a specific shape and providing a side plate in which a distance between a cable terminal and the throttle valve shaft can be changed. CONSTITUTION:A reel 4, moved turning by movement of a cable 7, is fixed to one end of a throttle valve shaft 2. A guide groove 3-2 changes a distance, between a cable terminal 8 and the center of the throttle valve shaft 2, in accordance with turning motion of the reel 4. If the reel 4 begins turning to the full open position of a throttle valve, the cable 7 causes a slip with a bottom surface 6, and a turning angle of the reel 4 is decreased by the amount of the slip. In this way, opening proportion of the throttle valve for an accelerating stroke can be applied in such a manner as to easily control a car speed.

Description

【発明の詳細な説明】 気化器のスロットルバルブ開度をケーブルを介してアク
セルで操作する場合、スロットルバルブの軸端にレバー
を固定し、その先端にケーブルが取付けられたときは、
ケーブルの動きに対するスロットルバルブの開きの割合
は、開度が小さいときは大きく中間開度において小さく
なる。即ちレバーの有効長さは第3図で示す様に開度の
小さいときはレバーの実長r。より短い「1となり中間
開度においては有効長さはレバーの実長r0に等しい。
[Detailed Description of the Invention] When the throttle valve opening of the carburetor is operated by the accelerator via a cable, a lever is fixed to the shaft end of the throttle valve and a cable is attached to the tip of the lever.
The ratio of the opening of the throttle valve to the movement of the cable is large when the opening is small and becomes small at intermediate openings. That is, as shown in FIG. 3, when the opening degree is small, the effective length of the lever is the actual length r of the lever. 1, and at an intermediate opening, the effective length is equal to the actual length r0 of the lever.

スロットルバルブの軸端に。At the shaft end of the throttle valve.

軸と同心のリールが使用されているときは、レバーの有
効長さはスロットルバルブの開度に関係なく常に一定で
ある。
When a reel concentric with the shaft is used, the effective length of the lever is always constant regardless of the opening of the throttle valve.

然るに気化器゛はスロットルバルブの開度が小さいとき
は開度の変化に対するエンジン出力の変化の割合が大き
いからスロットルバルブの開度が小さいときはケーブル
の動きに対するスロットルバルブ開度の変化が小さく、
開度が大きくなるに従ってケーブルの動きに対するスロ
ットルバルブ開度の変化が大きくなることが車速のコン
トロールを容易にするため望ましい。車速のコントロー
ルを容易にするためアクセルグリップ側で、スロットル
バルブの開度が小さいときグリップの回転角度に対する
ケーブルの動きを小さくする方法は既に提案されている
がグリップの径で構造が制約され上記の目的を十分達成
することが困難である。
However, in a carburetor, when the opening of the throttle valve is small, the rate of change in engine output with respect to the change in opening is large, so when the opening of the throttle valve is small, the change in throttle valve opening with respect to cable movement is small;
It is desirable that the change in the throttle valve opening degree with respect to the movement of the cable increases as the opening degree increases, in order to facilitate vehicle speed control. In order to make it easier to control the vehicle speed, a method has already been proposed to reduce the movement of the cable in relation to the rotation angle of the grip when the opening degree of the throttle valve is small on the accelerator grip side, but the structure is restricted by the diameter of the grip and the above It is difficult to fully achieve the purpose.

本発明は気化器のスロットルバルブ軸の一端にケーブル
の移動によって回動するリールを固定し、ケーブルがは
いる上記リールの外周の溝の底面の形状を、その断面を
とった側面形状が。
In the present invention, a reel that rotates by the movement of a cable is fixed to one end of the throttle valve shaft of a carburetor, and the bottom surface of the groove on the outer periphery of the reel into which the cable is inserted has a side surface shape that is the cross section of the bottom surface.

スロットルバルブ軸の中心からの溝径が偏角θと共に増
加する曲線であり、上記底面を挟んで相対峙する2枚の
側板にはケーブル端子が上記リールの回動に伴って移動
してスロットルバルブ軸との距離が変化する構造とする
ことによって前記の目的を達成するスロットルバルブコ
ントロール装置を提供することを目的とする。第1図(
a)はその一実施例の正面図を(b)はその側面図を示
し、一部断面をとっである。両図において1は気化器本
体、2はスロットルバルブ軸。
It is a curve in which the groove diameter from the center of the throttle valve shaft increases with the deviation angle θ, and cable terminals are attached to the two side plates that face each other across the bottom surface and move with the rotation of the reel to connect the throttle valve. It is an object of the present invention to provide a throttle valve control device that achieves the above object by having a structure in which the distance from the shaft changes. Figure 1 (
(a) shows a front view of one embodiment, and (b) shows a side view thereof, with a part cut away. In both figures, 1 is the carburetor body and 2 is the throttle valve shaft.

3はブラケット3−1によって気化器本体1に固定され
案内溝3−2を有し、この案内溝3−2によって後述す
るリールの回動に伴って後述するケーブルの端子とスロ
ットルバルブ軸2の中心との距離を変化させる手段、4
はリール。
3 is fixed to the carburetor main body 1 by a bracket 3-1 and has a guide groove 3-2, which guides the connection between the cable terminal and the throttle valve shaft 2 as the reel rotates (described later). Means for changing the distance from the center, 4
is a reel.

5はリール4の側板、6はリール4の外周の溝の底面、
7はアクセルのコントロールによって移動するケーブル
、8はケーブルの端子、9はリール4をスロットルバル
ブ軸4に固定すル袋ナツト、10はリール4を常にスロ
ットルバルブを閉める方向即ち(b)図の矢印11の方
向に付勢する戻しばねである。一点鎖線Aはスロットル
バルブ全閉時におけるケーブル端子8の位置を又一点鎖
線Bはスロットルバルブ全開時のケーブル端子8の位置
を示し、rは一点鎖1sAの位置を基準として測った偏
角θにおける溝の底面6の曲線の溝径である。
5 is the side plate of the reel 4, 6 is the bottom surface of the groove on the outer periphery of the reel 4,
7 is a cable that moves under the control of the accelerator, 8 is a terminal of the cable, 9 is a cap nut that fixes the reel 4 to the throttle valve shaft 4, and 10 is the direction in which the reel 4 is always closed, that is, the arrow in the figure (b). This is a return spring that biases in the direction of 11. The one-dot chain line A indicates the position of the cable terminal 8 when the throttle valve is fully closed, and the one-dot chain line B indicates the position of the cable terminal 8 when the throttle valve is fully open. This is the groove diameter of the curve of the bottom surface 6 of the groove.

次に第5図によって作用を説明する。図に示しである符
号は第1図の場合と同一部分を示すほか、Cはケーブル
端子8の中心を通る。底面6を形成する曲線の伸開線、
3−3及び5−2はそれぞれ前記溝3−2及び5−1の
中心線でケーブル端子8の中心の軌跡を示す。2つの軌
跡上の1から9に至る点はスロットルバルブ全閉OAか
ら全開OBに至る間の角度を8等分した角度宛リール4
を回動せしめたときのケーブル端子8の中心位置を示し
、同一番号の相対応する各点とり−ル4の中心0との距
離は互に相等しい。中心線5−2上の1乃至9の各点を
通り、リール4の底面6を示す曲線に接する接線の長さ
が、対応する接点から伸開線に至る長さに等しければリ
ール4の底面6とケーブル7の間のすべりは生じないこ
とは伸開線の定義から明らかである。然るに第5図で明
らかな如く。
Next, the operation will be explained with reference to FIG. The symbols shown in the figure indicate the same parts as in FIG. 1, and C passes through the center of the cable terminal 8. a curved expansion line forming the bottom surface 6;
3-3 and 5-2 are center lines of the grooves 3-2 and 5-1, respectively, and indicate loci of the center of the cable terminal 8. The points from 1 to 9 on the two trajectories are the angles of reel 4, which are obtained by dividing the angle between the throttle valve fully closed OA and fully opened OB into 8 equal parts.
This shows the center position of the cable terminal 8 when the cable terminal 8 is rotated, and the distances from the center 0 of the corresponding dotted circles 4 with the same number are mutually equal. If the length of the tangent line passing through each point 1 to 9 on the center line 5-2 and touching the curve indicating the bottom surface 6 of the reel 4 is equal to the length from the corresponding point of contact to the expansion line, then the bottom surface of the reel 4 It is clear from the definition of expansion line that no slippage occurs between cable 6 and cable 7. However, as is clear from Figure 5.

溝5−2の中心線即ちケーブル端子8の中心の軌跡は伸
開線Cよりもリール4の底面6を示す曲線の側にある。
The center line of the groove 5-2, that is, the locus of the center of the cable terminal 8, is closer to the curve indicating the bottom surface 6 of the reel 4 than the expansion line C.

従ってリール4がスロットルパルプ全閉位置から全開位
置に向って回動を開始するときは9回動に伴ってケーブ
ル7はリールの底面6との間にすべりを生じて、ケーブ
ル7はアクセル側に繰り出され、その分だけリール40
回動角度が小さくなることが分る(ケーブル端子8がリ
ール4に固定されている場合よりも)。尚第5図では中
心線5−2の上では7から9に至る点の距離は非常に小
さくなるので8の点は省略しである。又伸開線Cは中心
l1I5−2上の点5に対応する点以降は省略しである
が、伸開線Cが中心線5−2上の点9を通過する様に設
計すれば全閉から全開に至るケーブル即ちアクセルの全
部の動き量はケーブル端子8がリール4に固定された場
合と同じになり、途中の経過のみが変わる。この条件が
充たされたときのアクセルストロークに対するスロット
ルバルブ開度の関係は第2図の如くなる。図中実線は第
4図に該当する場合、破線は本発明の第1図の場合に該
当する。第1図においては溝5−1を直線溝としたが、
これを湾曲させ又更に溝3−2の形状をかえて特性をか
えることができる。例えば溝5−1を′リール4の底面
6に向って凸に湾曲させれば9.伸開線Cから更に遠ざ
かり初期の滑りを大きくして一層の効果をあげることが
できる。
Therefore, when the reel 4 starts rotating from the throttle pulp fully closed position to the fully open position, the cable 7 slips between it and the bottom surface 6 of the reel as it rotates 9 times, and the cable 7 moves toward the accelerator side. The reel is 40 for that amount.
It can be seen that the rotation angle is smaller (compared to when the cable terminal 8 is fixed to the reel 4). In FIG. 5, the distance between points 7 and 9 on the center line 5-2 is very small, so point 8 is omitted. Also, the extension line C is omitted from the point corresponding to point 5 on the center line 1I5-2, but if it is designed so that the extension line C passes through point 9 on the center line 5-2, it will be fully closed. The total amount of movement of the cable, ie, the accelerator, from 1 to 3 is the same as when the cable terminal 8 is fixed to the reel 4, and only the intermediate progress changes. When this condition is satisfied, the relationship between the throttle valve opening and the accelerator stroke is as shown in FIG. The solid lines in the figure correspond to the case in FIG. 4, and the broken lines correspond to the case in FIG. 1 of the present invention. In Fig. 1, the groove 5-1 is a straight groove, but
By curving this or changing the shape of the groove 3-2, the characteristics can be changed. For example, if the groove 5-1 is curved in a convex manner toward the bottom surface 6 of the reel 4, 9. By moving further away from the expansion line C, the initial slippage can be increased and even more effects can be achieved.

本発明にかNる気化器スロットルバルブのコントロール
装置は以上の記載によりて明らかな如く単にリールの底
面6の形状のみならず上記2つのケーブル端子案内溝の
選定によって、アクセルストロークに対するスロットル
バルブの開きの割合を車速のコントロールが容易となる
様に与えることができる特徴を有する。
As is clear from the above description, the control device for the carburetor throttle valve according to the present invention controls the opening of the throttle valve relative to the accelerator stroke by not only the shape of the bottom surface 6 of the reel but also the selection of the two cable terminal guide grooves. The vehicle speed can be easily controlled.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明にか〜る気化器スロットルバルブのコン
トロール装置の一実施例の構造を。 第2図はアクセルストロークに対するスロットルバルブ
開度の関係を示す曲線を、第3図第4図ハ現行ノスロッ
トルバルブ開度コントロール装置の例を示し、第5図は
本発明にが〜る気化器スロットルバルフIJ度コントロ
ール装置ノ作用説明図である。 1・・・気化器本体 2・・・スロットルバルブ軸3・
・・ケーブル端子とスロットルバルブ軸との距離を変化
させる手段 3−1・・・上記3に設けた溝 4・・・リール   5・・・リール側板5−1・・・
上記5に設けた溝 6・・・リール4の外周溝の底面 7・・・ケーブル  8・・・ケーブル端子C・・・伸
開線 出願人 三國工業株式会社 第 1 図 ・  5−x  C5−1
FIG. 1 shows the structure of an embodiment of a control device for a carburetor throttle valve according to the present invention. Fig. 2 shows a curve showing the relationship between the throttle valve opening and the accelerator stroke, Fig. 3 shows an example of the current throttle valve opening control device, and Fig. 5 shows a carburetor according to the present invention. FIG. 3 is an explanatory diagram of the operation of the throttle valve IJ degree control device. 1... Carburetor body 2... Throttle valve shaft 3.
...Means for changing the distance between the cable terminal and the throttle valve shaft 3-1...Groove provided in the above 3...Reel 5...Reel side plate 5-1...
Groove 6 provided in the above 5...Bottom surface 7 of the outer circumferential groove of reel 4...Cable 8...Cable terminal C...Expansion wire Applicant Mikuni Kogyo Co., Ltd. Figure 1 5-x C5- 1

Claims (1)

【特許請求の範囲】 アクセルの操作によって動(ケーブル7によっテスロッ
トルバルブの軸2と共に回動するリール4の溝の底面6
の側面形状が、スロットルバルブ軸2の中心からの溝径
rが偏角θと共に増加する曲線であり、上記底面6を挟
んで相対峙する2枚の側板5には上記ケーブル7の端子
8の、上記スロットルバルブ軸2との距離を自由に変化
させることができる溝5−1を有し。 上記ケーブル7の端子8の位置を上記リール40回動に
伴ってコントロールする溝3−2を有する端子案内手段
3を上記リール4の側板5に近接配置してなる気化器ス
ロットルバルブのコントロール装置。
[Claims] The bottom surface 6 of the groove of the reel 4 rotates with the shaft 2 of the throttle valve by the cable 7.
The side surface shape is a curve in which the groove diameter r from the center of the throttle valve shaft 2 increases with the deviation angle θ, and the terminal 8 of the cable 7 is mounted on the two side plates 5 facing each other with the bottom surface 6 in between. , has a groove 5-1 that allows the distance from the throttle valve shaft 2 to be freely changed. This control device for a carburetor throttle valve comprises a terminal guiding means 3 having a groove 3-2 for controlling the position of the terminal 8 of the cable 7 as the reel 40 rotates, and is arranged close to the side plate 5 of the reel 4.
JP17581881A 1981-11-04 1981-11-04 Control device of carburetor throttle valve Pending JPS5877133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17581881A JPS5877133A (en) 1981-11-04 1981-11-04 Control device of carburetor throttle valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17581881A JPS5877133A (en) 1981-11-04 1981-11-04 Control device of carburetor throttle valve

Publications (1)

Publication Number Publication Date
JPS5877133A true JPS5877133A (en) 1983-05-10

Family

ID=16002758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17581881A Pending JPS5877133A (en) 1981-11-04 1981-11-04 Control device of carburetor throttle valve

Country Status (1)

Country Link
JP (1) JPS5877133A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5524590A (en) * 1994-03-30 1996-06-11 Hyundai Motor Co., Ltd. Effort linearization device of accelerator pedal
US6021757A (en) * 1997-05-16 2000-02-08 Kioritz Corporation Handling device for a power working machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5677528A (en) * 1979-11-28 1981-06-25 Nissan Motor Co Ltd Link mechanism for accelerator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5677528A (en) * 1979-11-28 1981-06-25 Nissan Motor Co Ltd Link mechanism for accelerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5524590A (en) * 1994-03-30 1996-06-11 Hyundai Motor Co., Ltd. Effort linearization device of accelerator pedal
US6021757A (en) * 1997-05-16 2000-02-08 Kioritz Corporation Handling device for a power working machine

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