SYSTEM OF CONNECTION Russian patent published in 2010 - IPC B65H75/22 

FIELD: machine building.

SUBSTANCE: invention refers to system of connection for detached connection of axis-symmetrical parts, particularly parts of reel for winding bundles of items. The system of connection consists of circular surfaces on facing each other front surfaces of connected parts of the reel. Also the system of connection consists of locking lugs projecting from at least one circular surface in the direction of another circular surface and of stop recesses in one circular surface or in both circular surfaces to receive the locking lugs and to connect parts of the reel with a bayonet lock by means of mutual rotation. The connecting system contains spring catches made coaxially with corresponding stop recesses; the catches engage the locking lugs behind them in locked position and prevent connected parts unscrewing into a detached position. The system of connection contains sliding push-down elements in one of their position releasing the spring catches from engagement with the locking lugs. The push-down elements of the connecting system are made on a ring rotating on a back side of circular surfaces.

EFFECT: simplified connection of reel parts and increased protection against occasional detachment of reel parts.

4 cl, 3 dwg