JPS6392062U - - Google Patents

Description

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

第１図は本考案の実施例の正面図、第２図はそ
の動作状態を示す正面図、第３図は本考案の異な
る実施例の正面図、第４図は従来例の正面図であ
る。 ２１……一段側気化器、２２……二段側気化器
、２３……負圧機構、２５……二段側絞り弁軸、
２６……二段側レバー、２７……二段側絞り弁、
２８……一段側絞り弁、２９……一段側絞り弁軸
、３０……一段側アーム、３３……閉止保持機構
、３４……一段側レバー、３５……けとばし縁部
、３６……受縁部、３７……けとばし機構、３８
，４０……調整ねじ。 Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a front view showing its operating state, Fig. 3 is a front view of a different embodiment of the invention, and Fig. 4 is a front view of a conventional example. . 21... First stage side carburetor, 22... Second stage side carburetor, 23... Negative pressure mechanism, 25... Second stage side throttle valve shaft,
26... Second stage side lever, 27... Second stage side throttle valve,
28... First stage side throttle valve, 29... First stage side throttle valve shaft, 30... First stage side arm, 33... Closing and holding mechanism, 34... First stage side lever, 35... Kicked edge, 36... Receiving edge Part, 37... Ketobashi mechanism, 38
, 40...adjustment screw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一段側絞り弁２８が或る開度に開くまで二段側
絞り弁２７を閉弁位置に保持させる閉止保持機構
３３と、一段側絞り弁２８が全開位置附近に開い
たとき閉弁位置の二段側絞り弁２７を強制的に少
し開かせるけとばし機構３７とを具えている負圧
式二段気化器において、前記けとばし機構３７を
構成する一段側絞り弁軸２９に回転自由に支承さ
れた一段側アーム３０のけとばし縁部３５および
二段側絞り弁軸２５に固着された二段側レバー２
６の受縁部３６のいずれかにこれらの衝り位置を
調節する調整ねじ３８，４０が設けられている負
圧式二段気化器。 A closing holding mechanism 33 that holds the second stage throttle valve 27 at the closed position until the first stage throttle valve 28 opens to a certain opening degree, and a closing holding mechanism 33 that holds the second stage throttle valve 27 at the closed position until the first stage throttle valve 28 opens to a certain opening degree; In a negative pressure type two-stage carburetor, which is equipped with a blow-off mechanism 37 that forcibly opens the stage-side throttle valve 27 a little, the first-stage side throttle valve 27 is rotatably supported on the first-stage side throttle valve shaft 29 that constitutes the blow-off mechanism 37. The second stage lever 2 is fixed to the raised edge 35 of the arm 30 and the second stage throttle valve shaft 25.
This negative pressure type two-stage carburetor is provided with adjustment screws 38 and 40 on either of the receiving edges 36 of 6 to adjust the positions of these abutments.