| 摘要 |
PURPOSE:To make efficient work even in a high place, etc., with a simple, lightweight and small-sized device by rectilinearly advancing a rod with the intermittent suction force by an electromagnetic driving part thereby forcing out the material to be press-fed in a press-fed casing. CONSTITUTION:This invention relates to an electrically driving mechanism for forcing out a caulking agent, sealant, etc. A high magnetic flux is intermittently generated by a ferrite magnet 11 when a battery voltage is intermittently impressed to an electromagnetic coil 10 of an electromagnetic driving part 12. An attraction part 14 is then attracted to the part 12 side via a magnetic circuit by a holding cylinder 8 and is reset by a leaf spring 13. The part 14 is thereby oscillated back and forth. A driving spring member 15 is also moved back and forth, by which the rod 5 is advanced and retreated. A press feed plate 7 forces the material to be press-fed in a casing 1 out of a nozzle 2 on advancing of the rod 5. The construction is thus made simple and lightweight and the caulking gun having efficient and good workability is obtd.
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