Patent ID: 8167121
Filing Date: 2012-05-01
Classification: B65G

Abstract:
1. A belt retention guide for retaining the position of a belt having beads along a peripheral edge thereof, the belt retention guide comprising: a first roller; a movable portion that supports the first roller; and a fixing portion that engages with the movable portion, the movable portion being configured to be movable between a released position where the first roller is separated from the beads to release the beads and a fixed position where the first roller engages with the beads to pinch the beads between the first roller and the fixing portion and thereby the position of the belt is retained, wherein the movable portion is secured to the fixed position by inserting a stop member between the movable portion and the fixing portion when the movable portion is in the fixed position, wherein the movable portion is supported by the fixing portion at a supporting axis so as to be rotatable around the supporting axis, wherein the stop member comprises a core block that is fitted between the movable portion and the fixing portion and rotation of the movable portion is restricted by the core block jammed between the movable portion and the fixing portion when the movable portion is in the fixed position, wherein the supporting axis is parallel to a surface of the belt and the rotational axis of the first roller is in a plane perpendicular to the supporting axis, and wherein the stop member is disposed at an opposite side of the supporting axis than the first roller when the movable portion is in the fixed position.