Patent ID: 7291809

Claim:
A soldering iron having an elongate soldering tip that melts solder at a distal end, comprising: a heater insertion fit portion which is a lengthwise cavity in the soldering tip and open at a proximal end of the soldering tip; a temperature sensor insertion fit portion which is a lengthwise cavity in the soldering tip, the lengthwise cavity being in communication with a distal end of the heater insertion fit portion, and having an internal widthwise dimension, which is smaller than that of the heater insertion fit portion; a hollow elongate member which is disposed in the heater insertion fit portion, and has an outer widthwise dimension larger than the internal widthwise dimension of the temperature sensor insertion fit portion; a hollow carrier portion which is disposed passing through the hollow elongate member, and projecting from a distal end of the hollow elongate member into the temperature sensor insertion fit portion; a heater which is formed as a winding of a conductor, and disposed between an outer surface of the hollow elongate member and an inner surface of the heater insertion fit portion; a cable; and a temperature sensor which is connected to the cable, disposed between an inner surface of the temperature sensor insertion fit portion and an outer surface of the carrier portion, and contact with the inner surface of the temperature sensor insertion fit portion.