PAPER FEED ROLLER

• Main Author: MARUYAMA EIJI
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2016
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a paper feed roller having such a structure that a contact area increases at low cost.SOLUTION: A paper feed roller 1 is formed of a cylindrical inner layer part 2 and an outer layer part 3 which is deposited on the outer periphery of the inner layer par 2 and has uniform thickness. The inner layer part 2 and the outer layer part 3 are formed of a rubber material and a synthetic resin having elasticity and flexibility, and the outer layer part 3 is formed of a slightly harder material than that of the inner layer part 2. The inner layer part 2 has an inner ring part 2b having a shaft hole part 2a penetrated through the center, and an outer ring part 2c which is arranged outside of the inner ring par 2b concentrically to the inner ring part 2b at predetermined intervals, and a plurality of connection walls 2d connecting the inner ring part 2b and the outer ring part 2c. The inner layer part 2 is integrally formed by a mold or the like, and the connection wall 2d is arranged in a radial direction and is formed into a parallel wall having a uniform thickness.SELECTED DRAWING: Figure 1 【課題】低コストで、接触面積を増加する構造の用紙送りローラを得る。【解決手段】 用紙送りローラ１は、円筒状の内層部２と、内層部２の外周に被着した均等厚の外層部３とから成っている。内層部２、外層部３は弾力性、柔軟性を有するゴム材、合成樹脂材から成り、外層部３は内層部２よりも稍々硬質材料とされている。内層部２は、中心に軸孔部２ａが貫通された内輪部２ｂと、この内輪部２ｂの外側に所定の間隙をおいて内輪部２ｂと同心的に配置された外輪部２ｃと、これらの内輪部２ｂと外輪部２ｃとを連結する複数個の連結壁２ｄとを備えている。内層部２は金型等により一体的に形成され、連結壁２ｄは放射方向に配置され、厚みが一定の平行壁とされている。【選択図】図１