To provide an easily usable portable spot welder, being lightweight as being carriable by being put in a bag, and capable of also executing spot welding anywhere, by using a power source battery and a capacitor, without using a transformer.
The portable spot welder has a booster circuit for boosting power source voltage with the battery as a power source, and executes welding via a welding current to a work sandwiched by a pair of welding points, by instantaneously discharging electric charge stored in the capacitor by a switching element, and the pair of welding points are provided on the welder body side, and at least one welding point is formed as a movable welding point 15 capable of contacting-separating to the other welding point, and a pressurizing mechanism 17 is provided for pressurizing the movable welding point 15 to the work in a state of sandwiching the work by the one movable welding point 15 and the other welding point 16.
| JP2001300739A | 2001-10-30 | |||
| JPH11320110A | 1999-11-24 | |||
| JP2002001544A | 2002-01-08 |
Izawa Miki
Yasuhiko Mogi