To provide a filament support capable of preventing a guide 4 at a tip of a bracket 2 supporting a filament 3 from dropping down, when the bracket 2 deforms due to a creep phenomenon under high temperature environment.
A filament support for thermionic emission includes, on the bracket 2 having a plate shape and made of high melting metal, the guide 4 for letting the filament 3 go therethrough and at least two arms 5 and 5 extending from upper and lower positions at one end of the bracket 2. The filament support is assembled by inserting the arms 5 and 5 into and fixing the same to attachment holes 6 and 6 provided at upper and lower positions for a support member 1. The plate-shaped bracket 2 is attached to the support member 1 vertically. The bracket 2 has an insertion hole 9 at a base portion of the arms 5 and 5 extending from the one end of the single high melting metal made plate material. The support member 1, and the arms 5 and 5 of the bracket 2 which are inserted into and fixed to the attachment holes 6 and 6 are held by a winding member 7 inserted through the insertion hole 9 and wound around the support member 1.
OGASAWARA TOSHIHIKO
MIURA KUNIAKI
ABE YUJI
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