Patent ID: 8833524
Filing Date: 2014-09-16
Classification: B66B

Abstract:
1. A monitoring device for safeguarding a driven element against undesired collisions with an object lying on the movement path of the driven element, said monitoring device comprising at least one transmitting element and a multiplicity of receiving elements, wherein the at least one transmitting element is arranged in a horizontal upper boundary region of an opening to be monitored, which opening can be at least partially closed by the driven element, and the multiplicity of receiving elements are arranged in a horizontal, opposite lower boundary region in distributed fashion along the opening to be monitored, wherein the at least one transmitting element forms a light barrier arrangement with each of the multiplicity of receiving elements to form a fan-shaped passageway, which can be evaluated in each case by evaluation means, wherein the multiplicity of receiving elements, for distributed arrangement along the opening to be monitored, are distributed over an at least approximately complete horizontally extending opening region.