| 摘要 |
PROBLEM TO BE SOLVED: To provide a holder of such an advantageous structure that its components can be easily manufactured and assembled together; an eraser inserted into a support for erasers of various sizes can be replaced; and the eraser inserted into the support does not come off. SOLUTION: This holder has a cylindrical adapter 3 which fits into a round hole 2a of the support 2 for erasers of various sizes and receives a replaceable eraser 4 and a plurality of linear protuberances 3b formed in the axial direction of a round hole 3a of the adapter 3, with a plurality of linear protuberances 3c axially formed on the outer periphery of the adapter 3 so as to prevent it from coming off. COPYRIGHT: (C)2004,JPO&NCIPI
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