| 摘要 |
PURPOSE:To permit injection of two kinds of liquid with a simple structure by a method wherein two kinds of spaces are formed between a body and a needle, opening and closing the nozzle thereof, and the body is provided with a path communicating with both spaces respectively. CONSTITUTION:The body 2 is formed with the nozzle 21, a tapered section 22, a releasing section 23 and a needle guide section 24 sequentially from the lower end thereof while two liquid paths 25, 26 are formed along the axial line of the body 2. Transversal holes 25a, 26a are penetrated through the side wall of the body 2 near the bottom surface thereof in order to open both liquid paths 25, 26 at predetermined positions. On the other hand, the needle 1, inserted into the central part of the body 2, is constituted of a journal section 11, a sliding section 12, a tapered section 13, a small column section 14 and a pin section 16. The spaces 31, 32 are formed between both tapered sections 13, 22 as well as between the sliding section 12 and the releasing section 23 while the liquid paths 25, 26 are communicated respectively with these spaces 31, 32.
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