Process and device for lining tunnels and ducts having circular and non-circular cross-sections, especially for canal and tunnel construction
AssigneeGebr. Eikhoff Maschinenfabrik u. Eisengiesserei mbH
InventorHeinrich Grotenhofer
Life of this patent
Estimating the term…
Abstract
In a process and a winding device for lining elongated spaces such as tunnels or ducts of circular and non-circular cross-sections, especially for canal and tunnel construction band is employed. Tubes with various diameters and different cross-sections, but mainly with circular and egg-shaped cross-sections, may be created from the band by the winding device.
Claims17
A method for forming a wound lining for elongated spaces of varying cross-sections, said elongated spaces being enclosed by respective wall means with an inner surface defining said elongated spaces, said process comprising the steps of:
- supplying a band for forming said wound lining;
- winding said band in the form of a helix in a longitudinal direction of said elongated space about a winding cage surrounded by a shield tail;
- pressing said band against an inner surface of said shield tail with a pressing roller that is connected to said winding cage;
- and
- subsequently pressing said band with readjusting calibrating rollers against the inner surface of the wall means and thereby forming said wound lining in the form of a wound tube.
A device for forming a wound lining for elongated spaces of varying cross-sections from a band, said elongated spaces being enclosed by respective wall means with an inner surface defining said elongated spaces, said device comprising:
- a drive unit having a housing;
- an advancing and bracing unit attached to a first end of said drive;
- a shield tail connected to said housing at an end opposite said advancing and bracing unit;
- a winding cage connected within said shield tail to said drive unit;
- a driving roller for feeding the band, said driving roller fastened to said winding cage and drivingly connected to said drive unit;
- a pressing roller connected to said winding cage;
- and
- calibrating rollers connected to said winding cage, with said pressing roller pressing the band against an inner surface of said shield tail and with said calibrating rollers subsequently pressing the band against the inner surface of the wall means to form a wound lining in the form of a wound tube corresponding to the varying cross-sections of said elongated spaces.
Dependencies are inferred from the claim text.