US 11,938,651 B2
Concrete tube and formwork device and method for producing such a concrete tube
Werner Brunner, Buch (DE)
Assigned to PERI SE, Weissenhorn (DE)
Appl. No. 16/492,605
Filed by PERI SE, Weissenhorn (DE)
PCT Filed Mar. 2, 2018, PCT No. PCT/EP2018/055129
§ 371(c)(1), (2) Date Sep. 9, 2019,
PCT Pub. No. WO2018/162332, PCT Pub. Date Sep. 13, 2018.
Claims priority of application No. 10 2017 203 772.5 (DE), filed on Mar. 8, 2017.
Prior Publication US 2021/0138687 A1, May 13, 2021
Int. Cl. B28B 21/06 (2006.01); B61B 13/10 (2006.01); E04G 11/34 (2006.01)
CPC B28B 21/06 (2013.01) [B61B 13/10 (2013.01); E04G 11/34 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A formwork device for producing a horizontal concrete tube using a cast-in-place concrete construction, the formwork device comprising:
a formwork carriage that is horizontally movable on spaced-apart columns;
an outer mold and an inner mold that delimit a space, wherein concrete is introduced into the space via of a filling connection to form the concrete tube; and
an end element for closing the space at an end,
wherein the end element is positioned at an angle with respect to an upper part of the space and a lower part of the space such that there is difference in distance between the filling connection and a solidification front in the upper part and the lower part.