| 摘要 |
<p>PURPOSE:To make it possible to adjust easily the adjustment screw at the time of assembling the carburetor, but to make it impossible for the general users to adjust it as they like after adjustment by improving the adjustment screw and a shape of composing members of the carburetor to which the said adjustment screw is attached by screwing. CONSTITUTION:The carburetor is, for example, by turning the adjustment screw 31, to adjust the distance between the flange 23 of the 1st lever 21 and the arm 27 of the 2nd lever 22, adjust the relative positions of both lavers, thereby adjust the metallic needle 35 to be inserted into the measuring jet which is not illustrated in the diagram. In this case, the adjustment screw 31 integrally forms an enlarged head 40 having a driver inserting groove 41 on its projecting upper end. Moreover, the cylindrical part 43 having a small caliber than the bottom caliber of the screw part 31a is formed at a screw part located between the enlarged head 41 and the top surface of the hollow cylinder 30 in which the above screw 31 integrally formed up on the above arm 27 is screwed 47. Then, after adjusting the adjustment screw 31, the screw 31 is cut and claked at the cylindrical part 43 having a small caliber to make it impossible to make an adjustment in future.</p> |
