If you open the black box...
At the heart of SpiraLift is a cylindrical shaped rotor A, that turns on a taper roller bearing B. A slopped set of support wheels C, attached to the rotor lifts the spiral, D, and provides space to insert the coiled strap E. The wheels must also support the column and its load. Unused flat spiral D, is stored in the base; coiled strap E, in rotating tray F. When the pinion G, beneath the thrust bearing, is powered by a roller-chain drive or similar device, the gear H, fixed to the bearing makes the rotor A turn with its attached support wheels C. They lift and open the spiral D. At point I, the opening is enough for smooth positionning of the coiled strap E. The strap is not forced into position.
The strap edge is inserted in a continous groove in the flat spiral D, assuring precise location of the coiled strap and freedom from lateral movement.
The column is continously formed and can go as high as there is a flat spiral and coiled strap feed into it. When the rotor A is driven in reverse, the column is disassembled as components returns to storage positions.
Return to PACO's main page