Writing tool
AssigneeKotobuki & Co., Ltd.
InventorsYoshio Noguchi, Tomiji Ueki
Life of this patent
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Abstract
A writing tool in which flexible pieces 24a projecting diametrically outward are provided in sleeve 24 of writing shaft body 11, while holding holes 10a are provided in outer case 10. By inserting parts of flexible pieces 24a into holding holes 10a, respectively, writing shaft body 11 is held within outer case 10 by engaging outer case 10. Holding holes 10a are through holes formed in the side of outer case 10, wherein a distance r1 between the outer surface of outer case 10 near front edges F of holding holes 10a and the central axis of outer case 10 is approximately equal to or smaller than a distance r2 between the inner surface of outer case 10 near rear edges R of holding holes 10a and the central axis of outer case 10.
Claims5
A writing tool comprising an outer case having a plurality of holding holes, and a writing shaft body held within the outer case by engaging the holding holes, wherein the holding holes are through holes formed in the side of the outer case, and a distance (r1) between an outer surface of the outer case near front edges of the holding holes and the central axis of the outer case is not greater than approximately a distance (r2) between an inner surface of the outer case near rear edges of the holding holes and the central axis of the outer case.
Dependencies are inferred from the claim text.