초록 ▼

A high mast lighting system is disclosed in which an elongated vertical mast having upper and lower ends is surrounded by an annular support ring. The support ring has a plurality of lamps removably mounted thereon. Drive means is provided for raising and lowering the ring along the mast between its

A high mast lighting system is disclosed in which an elongated vertical mast having upper and lower ends is surrounded by an annular support ring. The support ring has a plurality of lamps removably mounted thereon. Drive means is provided for raising and lowering the ring along the mast between its upper and lower ends. A plurality of guide rollers are mounted on the upper end of the mast with a plurality of flexible cables operatively connected at one end to the ring and guided over the rollers on the mast. The opposite ends of the cables extend downwardly from the rollers into the mast where they are operatively connected to the drive means which selectively moves the cables upwardly and downwardly in the mast to raise and lower the ring. The system includes a rigid hollow latching arm associated with at least one of the cables and pivotally connected to the ring above the connection of its associated cable to the ring with the cable passing through the arm. A latch member is mounted on the upper end of the mast in association with the latching arm and is adapted to engage cooperating means on the latching arm for selectively releasing the arm in the ring for lowering the ring and for latching the ring in its uppermost position. The ring also includes an inner wall facing the mast and resilient bumper means mounted thereon.

대표청구항 ▼

[ I claim:] [1.] A high mast lighting system comprisingan elongated vertical mast having upper and lower ends,an annular lamp support ring surrounding said mast and having a plurality of lamps removably mounted thereon;means for raising and lowering said ring along said mast between said upper and l

[ I claim:] [1.] A high mast lighting system comprisingan elongated vertical mast having upper and lower ends,an annular lamp support ring surrounding said mast and having a plurality of lamps removably mounted thereon;means for raising and lowering said ring along said mast between said upper and lower ends including a plurality of guide rollers mounted on said upper end of the mast and a plurality of flexible cables operatively connected at one end to said ring, trained over said rollers and extending downwardly therefrom in said mast and connected at their opposite ends to means in said base for drawing the cables downwardly in the mast to raise said ring;said raising and lowering means also including rigid hollow latching arms respectively associated with each of said cables and being pivotally connected to said ring above the connection of each cable to the ring along an axis extending transversely of its associated cable with its associated cable passing therethrough;a plurality of latch means mounted on said upper end of the mast respectively associated with each of said cables and adapted to engage cooperating means in said latching arms for selectively releasing the arm and ring for lowering and for latching the ring in its uppermost position, said cables passing through said latching means to said guide rollers;said ring including an inner wall facing the mast and resilient bumper means mounted thereon facing the mast.