| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber roller shaft for improving a fastening force between a core member and a press-fitting member and provide a rubber roller of which characteristic is improved.SOLUTION: A rubber roller core [110] of this invention is a shaft used for a rubber roller for business equipment and comprises a cylindrical core [110] and a press-fitting member [120] including a press-fitting part [121] press-fitted to each of openings at both ends of the core [110]. An outer peripheral surface of the press-fitting part [121] has an area [124] where a plurality of recesses [123] for receiving an inner peripheral surface of the core [110] are formed. An outer diameter of the area [124] is the same outer diameter as an outer diameter of the press-fitting part [121]. The rubber roller comprises a rubber roller shaft and a rubber layer covering an outer peripheral surface of the rubber roller core [110].SELECTED DRAWING: Figure 4 |
