SPEED CONTROL METHOD FOR CARGO CONVEYOR AND CONTROL DEVICE THEREOF

PURPOSE:To accurately stop a cargo conveyor mounted with a cargo having a different load in a stopping position of a cargo housing part. CONSTITUTION:A speed control method and a control device thereof have a sensor 35 and a timer 34 to measure passing time when a picker body 3 is moved by a prescri...

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Bibliographic Details
Main Authors IWAMARU HIROSHI, YOSHIDA KAKUO
Format Patent
LanguageEnglish
Published 25.07.1995
Edition6
Subjects
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Summary:PURPOSE:To accurately stop a cargo conveyor mounted with a cargo having a different load in a stopping position of a cargo housing part. CONSTITUTION:A speed control method and a control device thereof have a sensor 35 and a timer 34 to measure passing time when a picker body 3 is moved by a prescribed distance on a moving stand in a cargo conveyor, a RAM 33 to respectively store unloading necessary time to move the picker body 3 by a reference distance in an unloaded condition and actual load necessary time to move the picker body 3 by the reference distance in a cargo carrying condition and a driving circuit 40 of a traveling motor 39 to move the cargo conveyor. A control device 31 is provided to control so as to change the timing to change travel from high speed travel of the cargo convyor to travel along a front surface of a housing shelf unit to low speed travel according to the ratio of the unloading necessary time to the actual load necessary time.
Bibliography:Application Number: JP19930331829