Patent ID: 9091231
Filing Date: 2015-07-28
Classification: F02M

Abstract:
1. A regulating device for adjustment angle of a pilot screw for a carburetor for regulating adjustment angle of the pilot screw into a predetermined range, the pilot screw being screwed for adjusting opening area of an pilot outlet hole of the carburetor, comprising: a metal-made tamper cap which includes a projection portion and synchronously rotates the pilot screw as being press-fitted to the pilot screw; a stopper member which regulates rotational angle of the tamper cap into a predetermined range as causing the projection portion to be stopped; a holding member which maintains an engaged state between the pilot screw and the tamper cap; and a plurality of elastically deforming portions which are arranged at a tailing end part in a longitudinal axis direction of the pilot screw to form a groove at a center part thereof and which are elastically deformable in a direction perpendicular to the longitudinal axis direction, wherein engaging portions for mutually engaging the pilot screw and the tamper cap are arranged at the elastically deforming portions and the tamper cap, and the elastically deforming portions are configured to be incapable of elastically deforming owing to that the holding member is press-fitted to the groove which is formed at the center part of the plurality of elastically deforming portions in a state that the tamper cap is fitted to the pilot screw.