| 摘要 |
A marking instrument comprising: a marking tip for applying marking fluid on surface of written media, a first reservoir chamber having a fluid supply outlet for supplying the marking tip with marking fluid, in characterized that said instrument further comprises at least one additional reservoir chamber located inside or outside of the first reservoir chamber, the additional reservoir chamber is provided with a fluid supply outlet for supplying marking fluid to the first reservoir chamber, the first reservoir chamber comprises a fluid core having absorptive capacity, and the fluid core comprises an inlet and an outlet, wherein the inlet of the fluid core communicates with the fluid supply outlet of the additional reservoir chamber and the outlet of the fluid core communicates with the marking tip, and wherein a first exhaust outlet is formed on the first reservoir chamber and communicates with the fluid core such that the marking fluid in the additional reservoir chamber is conducted to the marking tip via the fluid core of the first reservoir chamber so as to supply marking fluid continually to the marking tip. The marking instrument of the present invention not only increases the volume for marking fluid but also effectively prevents and avoids leakage. It also extends writing time and has fluent writing and even handwriting in dark or light. The marking instrument of the present invention has a simple and reasonable structure, low cost and long working life and is convenient for wholesale manufacture.
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