Patent ID: 9021740
Filing Date: 2015-05-05
Classification: E05F,E05Y,Y10T

Abstract:
1. An apparatus comprising: a trolley operably connected to an operator configured to effectuate movement of a movable barrier through movement of the trolley; a guiding rail configured to guide movement of the trolley, wherein the guiding rail includes a first rail section and a second rail section obliquely connected to each other with a hinged connecting point such that the trolley changes direction of travel when passing between the first rail section and the second rail section; a support member having a first and second end, the first end of the support member being coupled to one or more of the rail sections of the guiding rail or a connection between the rail sections of the guiding rail, wherein the support member is configured to counteract forces exerted on the guiding rail by the trolley during movement of the movable barrier.