US 12,247,488 B2
Modular tunnel formwork device
Reiner Kern, Paradiso (CH)
Assigned to KERN Tunneltechnik SA, Paradiso (CH)
Filed by KERN Tunneltechnik SA, Paradiso (CH)
Filed on Dec. 6, 2022, as Appl. No. 18/062,218.
Claims priority of application No. 22150523 (EP), filed on Jan. 7, 2022.
Prior Publication US 2023/0220774 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21D 11/40 (2006.01); E21D 11/10 (2006.01)
CPC E21D 11/102 (2013.01) [E21D 11/105 (2013.01); E21D 11/40 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A modular tunnel formwork device, comprising:
at least two modules, which are arranged one behind the other in a longitudinal direction of the tunnel formwork device and can be detachably connected to one another,
wherein the at least two modules each have a frame part, and the frame parts of the at least two modules form a frame of the tunnel formwork device,
at least two support structures, which can be connected to the frame of the tunnel formwork device and are spaced apart from one another in the longitudinal direction of the tunnel formwork device, for supporting the frame on a tunnel floor,
wherein the frame carries at least two support struts in the form of support cylinders in at least two mutually spaced positions in the longitudinal direction, which support cylinders are selectively connected to longitudinal beams extending in the longitudinal direction, which longitudinal beams carry tunnel formwork elements of the tunnel formwork device.