Patent ID: 6173723
Filing Date: 2001-01-16
Classification: A45B

Abstract:
In a skeleton for umbrellas comprising an elongated shank, a runner slidably mounted on said shank, a sleeve slidably fitted on said shank and arranged above said runner, a spring disposed between said runner and said sleeve, and a joint fixedly secured to an upper end of said shank, characterized in that a plurality of primary stretchers are pivotally connected with said sleeve, a plurality of secondary stretchers having an end pivotally connected with an upper end of said runner and having another end pivotally connected with an intermediate portion of a respective one of said primary stretchers, a plurality of reinforcing arms pivotally connected at a first end thereof with another end of a respective one of said primary stretchers, and a plurality of ribs pivotally connected at an end with said joint and pivotally connected with a second end of a respective one of said reinforcing arms.