Patent ID: 8887897
Filing Date: 2014-11-18
Classification: B65G

Abstract:
1. A roller conveyor comprising: a plurality of rollers for conveying articles; at least one motor for rotating at least one of the rollers; and at least one controller for controlling the at least one motor, the conveyor obtaining information relating to rotation of the motor and/or the roller as rotational information and information relating to a current supplied and/or a voltage applied to the motor as electrical information and generating at least one of: a) a first profile showing a correlation between time and the rotational information; and b) a second profile showing a correlation between time and the electrical information, and the conveyor equipped with a memory for storing the at least one of the first and second profiles in normal operation of the conveyor as criterial information, an information detector for detecting at least one of the rotational information and the electrical information in a present situation of the conveyor as present status information, and a comparator for performing comparison of at least one of: a) the criterial information stored in the memory as the first profile with the present status information for rotational information; and b) the criterial information stored in the memory as the second profile with the present status information for electrical information.