发明名称 Cloth-spreading apparatus having improved control means
摘要 A cloth-spreading apparatus having an improved control for controlling the movement of a carriage assembly across an elongated table. The control includes one or more sensors in the form of photoelectric eyes (52-58) which are capable of sensing a light-reflective medium (60, 76) and nonreflective surfaces (72, 74 or 78), which sensed positions are processed by a controller (50) to cause an electric motor (42) to be slowed down when the carriage assembly (24) reaches a slowdown position and to be stopped or reversed when a stop position is attained. The sensors are in an "on" state when the carriage assembly is moving and in an "off" state when the carriage assembly is not moving.
申请公布号 US5018713(A) 申请公布日期 1991.05.28
申请号 US19890407820 申请日期 1989.09.15
申请人 EASTMAN MACHINE COMPANY 发明人 JUNG, ROLF;NALECZ, ANDREW A.
分类号 B65H45/103 主分类号 B65H45/103
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