Overhead door balancing and guiding device for garage, has synchronization unit that synchronizes left and right rolling levers, and comprises of tubular shaft connecting levers with each other

摘要

The device has a bearing (11) in which an axle provided with right and left rolling levers (13) is housed. A roller sliding in a rail integrated with a door (6) is fixed on each lever. A synchronization unit synchronizes the levers and comprises of a tubular shaft (15) connecting the levers with each other. The bearing is fixed in top part of posts (4, 5), and the levers have an axis-to-axis length between 300 and 400 millimeter.