| 摘要 |
PROBLEM TO BE SOLVED: To provide a knock type double-refills writing tool, not necessary to interrupt writing and re-hold the barrel of the writing tool while capable of writing immediately by another pen body unit upon switching from one pen body unit into the other pen body unit. SOLUTION: The knock type double-refills writing tool is constituted to a barrel 10, on which two pieces of window holes 11 are formed at parts against which finger tips are abutted upon writing, two pieces of refills 4A, 4B, received in the barrel, a retaining projection 52, a retaining releasing projection 51, knock units 6A, 6B, which are projected out of the window holes of the barrel, and a pair of operating pieces 5A, 5B, which are arranged in parallel to the refills and are connected at the tail end units of the refills to each other.
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