MOTORIZED CURTAIN TROLLEY AND OCCULTATION INSTALLATION COMPRISING SUCH A TROLLEY

摘要

This motorized carriage (100b) for opening / closing a screen moves along a rail (50) by means of a friction wheel (140b) driven in rotation by a motor and which is in contact with at least one running surface (53, 54) of the rail. The contact force (F) between the friction wheel (140b) and the running surface is adjustable by a pressing means (164b) which makes it possible to vary the contact force (F) as a function of a resistant force (R) which is a function of the load pulled or pushed by the carriage (100b) during its movement (F).