| 摘要 |
Device for ensuring a flow of ink in a marker pen. The invention relates to the device in a felt-tip marker pen offering controllable and constant flow of ink, with the advantages of greater user-friendliness. It consists of a threaded end piece 3 which when screwed or unscrewed allows the piston 7 to be opened, which piston controls the flow of ink from the cartridge 10 to the felt tip 12, passing through various channels and the chamber where the spring 6 sits; the same spring provides both the action on the immediate opening of the piston 7 and the filtering of the ink. The device of the invention is particularly intended for controllable flowrate of ink in a marker pen. <IMAGE>
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