Starting motor

Starting motor apparatus comprising:

• a pinion for transmitting rotation of said motor to an engine shaft;
• and
• a motor circuit for driving said motor;
• wherein a part of said motor circuit is used as a circuit disconnecting member that disconnects said motor circuit on receiving radiant heat generated by heat generation of said motor circuit, at a temperature lower than a thermal breakdown temperature of a combustible substance around said motor circuit.

Starting motor apparatus comprising:

• a motor;
• a pinion for transmitting rotation of said motor to an engine shaft;
• a motor circuit for driving said motor;
• and
• an electromagnetic switch having a contract for opening and closing energization to said motor;
• wherein a member for connecting a terminal of said contact to said motor circuit includes a circuit disconnecting member that disconnects said motor circuit on receiving radiant heat generated by heat generation of said motor circuit, at a temperature lower than a thermal breakdown temperature of a combustible substance around said motor circuit.

Starting motor apparatus comprising:

• a motor rotated by energization from a battery;
• a pinion to which rotation of said motor is transmitted;
• a shift lever for moving said pinion toward a ring gear of an engine;
• an electromagnetic switch having a coil for inducing an electromagnetic force;
• an axially slidable plunge and a contact for opening said closing energization to said motor;
• and
• a circuit disconnecting member which is connected into the motor circuit and that disconnects said motor circuit on receiving radiant heat generated by heat generation of said motor circuit, at a temperature lower than a thermal breakdown temperature of a combustible substance around said motor circuit.