| 摘要 |
<p>The invention relates to a transmissible connecting mechanism which drives a lead air control valve and an air-fuel mixture throttle valve of a carburetor of a stratified scavenging two-cycle engine in an interlocking manner. A cam plate (28) having a cam groove (28c) is attached to an end portion of a valve shaft (27) of the lead air control valve, and a lever (23) is attached to a valve shaft (22) of an air-fuel mixture throttle valve (21) arranged within a carburetor main body (20a). A contact element (24) engaging with the cam groove (28c) of the cam plate (28) is arranged in the lever (23). Springs (not shown) are arranged in the valve shaft (22) of the air-fuel mixture throttle valve (21) and the valve shaft (27) of the lead air control valve, and urge the lead air control valve and the throttle valve in a valve closing direction. A cam mechanism serving as the transmissible connecting mechanism is structured by the cam plate (28) and the lever (23). In accordance with the structure mentioned above, it is possible to forcibly drive both of the valves in an interlocking manner at a time of opening and closing the lead air control valve or the air-fuel mixture throttle valve.</p> |
