Patent ID: 9162835
Filing Date: 2015-10-20
Classification: B65H

Abstract:
1. A roller member comprising: a rotary shaft; a roller part including a through-hole for insertion of the rotary shaft and removably mounted on a periphery of the rotary shaft; and a positioning retention part for positioning one end of the roller part, wherein the rotary shaft includes an engagement recess having a concave shape and formed in a portion extended beyond the other end of the roller part mounted on the rotary shaft, the roller part includes a snap fit portion which is extended axially outward from the other end thereof and includes an engagement protrusion for engagement with the engagement recess, and the snap fit portion brings the engagement protrusion into engagement with the engagement recess as elastically deformed in a direction opposite to its extension direction, while the one end of the roller part is pressed against the positioning retention part by an elastic restoring force of the snap fit portion.