| 摘要 |
PURPOSE: An apparatus for withdrawing of sharp pencil lead is provided to more easily make the internal lead withdrawn by a little just by a little pushing the slide ring contacting with the end of a finger. CONSTITUTION: For the apparatus for withdrawing of sharp pencil lead, a hole(8,8') is punched in the spring supporting plate(7) of a central tube(5) in a conventional chuck(4) which is arranged in a penetration(3) fitted into a conical tube(2) of the lower part of the sharp pencil(1), a thin slide ring(11), on which an intermediate hole(10,10') is punched, is slidably set in the surrounding of a grooved hole(9,9') punched in a little lengthened manner, and the front end of a pin(12,12'), being so inserted as to pass through the grooved hole(9,9'), is inserted and fixed into the intermediate hole(10,10') of the slide ring(11).
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