Patent ID: 8783664

Claim:
An automatic choke apparatus for a carburetor, comprising: an electric actuator; a choke valve opening/closing mechanism configured to open and close a choke valve by being driven by a power exerted by the electric actuator; and a controller configured to control operation of the electric actuator, wherein the automatic choke apparatus further comprises a battery configured to supply electric power to the controller and the electric actuator, the controller operates the electric actuator and the choke valve opening/closing mechanism in order that: the choke valve is set in a semi-opened position when an engine is stopped; and the choke valve is set in a fully-closed position when the engine starts to be cranked, the automatic choke apparatus further comprises a throttle valve opening/closing mechanism configured to open and close a throttle valve in accordance with operation of the electric actuator, and provided between the electric actuator and the throttle valve, the choke valve opening/closing mechanism includes, as one component, a cam provided to an operation member constituting a part of the throttle valve opening/closing mechanism, and disposed between the operation member and the choke valve, and the cam is formed in order that while the engine is being warmed up, the choke valve is operated between the fully-closed position and the semi-opened position in accordance with an opening degree of the throttle valve.