| 摘要 |
<p>#CMT# #/CMT# The device has a rail (4) for guiding in translation a carriage that is mechanically connected with a movable element. A flexible connection i.e. chain (5), transmits the power between a gear motor and the carriage. The connection forms a loop and connects a chain driving wheel and an idler wheel, where the driving wheel is coupled to the gear motor. Marks (108) and a nut (109) indicate the tension of the connection. The nut is in helical connection with a screw (105) and is rotatably immobilized and movable in translation. A helical spring (107) is supported on a stop (106) and the nut. #CMT#USE : #/CMT# Device for driving a movable element e.g. overhead garage door and sectional garage door, in a building. #CMT#ADVANTAGE : #/CMT# The device enables easy adjustment of the tension of the flexible connection in a precise manner, thus allowing screwing and unscrewing of the screw until obtaining the required tension, which is visualized by positioning of the nut with respect to the marks. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial detailed view of a powered driving device for a garage door. 4 : Rail 5 : Chain 105 : Screw 106 : Stop 107 : Helical spring 108 : Marks 109 : Nut.</p> |
