Patent ID: 7607661
Filing Date: 2009-10-27
Classification: B65H

Abstract:
1. A control device connected to a driving device that is operated according to a control signal inputted therein and applies a driving force corresponding to an operation amount thereof to a driving object, the control device causing the driving object to be moved a predetermined distance by controlling the driving device, the control device comprising: a detector that detects a travel distance of the driving object; a target setter that sets a target amount of the driving object in every predetermined period when the driving object is moved; an operation amount calculator that calculates, in every predetermined period, the operation amount from at least a detection result of the detector and the target amount set by the target setter; a controller that causes the driving device to move the driving object for a predetermined distance by sequentially providing control signals corresponding to the operation amount calculated by the operation amount calculator; and an operation amount determiner that determines, in every predetermined period, whether the operation amount calculated by the operation amount calculator is equal to or more than a predetermined upper limit; wherein the target setter sets the target amount according to a first rule when the operation amount which is calculated from at least the detection result of the detector and the target amount previously set by the target setter is determined by the operation amount determiner to be less than the upper limit, and the target setter sets the target amount according to a second rule when the operation amount which is calculated from at least the detection result of the detector and the target amount previously set by the target setter is determined by the operation amount determiner to be equal to or more than the upper limit.