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OwnerKeisuke Yano, Ryuichi Hashimoto +2inventors
InventorsKeisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
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An object of the invention is to provide a contact switching device that prevents scattered objects caused by arc from coming in, so that the scattered objects do not disturb operation of a movable shaft. For this, there is provided a contact switching device in which a movable iron core (142) provided at one end portion of a movable shaft (145) is attracted to a fixed iron core (138), based on excitation and degauss of an electromagnet portion, by which the movable shaft (145) reciprocates in a shaft center direction, and a movable contact (148a) of a movable contact piece (148) arranged at another end portion of the movable shaft (145) contacts and departs from a fixed contact (133a). The movable shaft (145) is inserted into a through-hole (135f) provided in a magnet holder (135) so as to move slidably, and an annular partition wall (135g) is projected on a movable shaft (145) side with respect to the movable contact (148a) in a vicinity of an opening portion of the through-hole (135f) of the magnet holder (135).
A contact switching device in which a movable iron core provided at one end portion of a movable shaft is attracted to a fixed iron core, based on excitation and degauss of an electromagnet portion, by which the movable shaft reciprocates in a shaft center direction, and a movable contact of a movable contact piece arranged at another end portion of the movable shaft contacts and departs from a fixed contact,
Dependencies are inferred from the claim text.