A method for production of reinforcement chairs and a mould...

B - Operations – Transporting – 28 – B

Patent

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Details

B28B 7/34 (2006.01) B28B 7/00 (2006.01) B28B 7/18 (2006.01) E04C 5/20 (2006.01)

Patent

CA 2219825

The invention concerns a method for production of reinforcement chairs in concrete for use in steel-armoured concrete structures, wherein the reinforcement chairs are cast in a mould (9) of a material which is elastic, preferably a two-component rubber mass, and that after hardening the reinforcement chairs are removed by elastically bending the mould's wall parts (11). The invention also concerns a mould for use in production of reinforcement chairs wherein the mould has walls adapted to the shape of the reinforcement chairs, which are made of an elastic material, especially a two- component rubber mass, and that a releasable metal rod (10) is provided perpendicularly through the mould's wall parts, for production of through- going mounting holes in the reinforcement chair.

L'invention concerne un procédé pour la production de chaises à béton prévues pour être utilisées dans des structures en béton, à armatures d'acier. Les chaises à béton sont coulées dans un moule (9) d'un matériau élastique, de préférence, une matière à base de caoutchouc à deux composants. Après durcissement, on retire les chaises en fléchissant, de manière élastique, les parois (11) du moule. L'invention concerne également un moule utilisé pour la production de chaises à béton. Ce moule comprend des parois adaptées à la forme des chaises à béton, constituées en une matériau élastique, en particulier, une matière à base de caoutchouc à deux composants. En outre, une tige métallique amovible (10) est introduite de manière perpendiculaire, à travers les parois du moule, pour former des trous de montage traversants dans la chaise à béton.

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