| 摘要 |
#CMT# #/CMT# The device has a flexible apron/curtain (5) moving between opening and closing positions inside a guiding device forming a slide (15). Two pairs of safety cells (23, 24) are placed on both sides of the slide and at a same height with respect to a ground (S) so that each pair of cells emits horizontal beam (F3) directed upstream and downstream of the curtain with respect to a direction of passage. The pairs of cells are mounted in parallel so that the beams are cut at a same time to permit the device to stop the descent of curtain and to assure the rising of curtain in the opening position. #CMT#USE : #/CMT# Used for being placed on opposed and vertical posts of a roll-up/stack-up flexible curtain or apron handling door. #CMT#ADVANTAGE : #/CMT# The pairs of safety cells are mounted in parallel so that the beams are cut at the same time to permit the device to stop the descent the apron/curtain and to assure the rising of the curtain in the opening position, thus permitting the device to avoid risk of untimely rising of the curtain when the curtain is laterally moved under the effect of wind that leads to deformation of reinforced horizontal crosspieces. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a detailed perspective view of a securing device. F3, F4 : Beams h : Height S : Ground 5 : Flexible apron/curtain 15 : Slide 23, 24 : Safety cells. |
