Spoke arrangement for telescopic umbrella, has solid secondary spokes kinked in middle where they are surrounded by articulated joints

摘要

The secondary spokes (4) and the front middle main spokes (21) are solid. The middle of each secondary spoke contains a kink surrounded by an articulated joint (42). The spoke arrangement comprises inner main spokes (1), middle main spokes (2) and outer main spokes (3), as well as secondary spokes. The inner main spokes are pivotally connected at one end to an upper hub (5) and pivotally connected to the middle of the secondary spokes at the other end. The secondary spokes are pivotally connected at one end to a lower hub (7) and pivotally connected to the front middle main spokes at the other end. The rear middle main spokes (22) are pivotally connected at their outer ends to the outer main spokes.