Automatic recovery swing sign structure

Details Automatic recovery swing sign structure Automatic recovery swing sign structure

F - Mech Eng,Light,Heat,Weapons

16

F

40/60

F16F 1/14 (2006.01)

Patent

CA 1263531

AUTOMATIC RECOVERY SWING SIGN STRUCTURE Abstract A yieldable highway swing sign is described which swings out of the way when struck by farm equipment or other objects such as wet snow from snow plows. The sign has a torsion bar which returns the sign to its original position after being struck. The sign has notches in its hinges to maintain its original position. The notches resist any displacement forces by providing an inclined plane of 40° which must be overcome before the sign is displaced in an arc pivoting around the torsion bar. The displacement of the sign is limited to a 90° displacement from the original position by the configuration of the hinges and is helped by the increased torque created by the torsion bar as the sign swings further from its original position.

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