Static molds – In situ construction engineering type or building type-mold... – Forming building structure
Patent
1995-05-02
1997-11-04
Weber, Thomas R.
Static molds
In situ construction engineering type or building type-mold...
Forming building structure
249 19, 249 22, 249 24, 249210, 249211, E04G 1152
Patent
active
056836090
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention concerns a concrete ceiling mold having ceiling mold elements and their support, whereby the support exhibits separated rows of projections, the projections being arranged at separations from each other and protruding largely upwardly and outwardly.
A support for concrete ceiling molds of this kind is known in the art from DE-PS 30 04 245 (compare FIG. 4, 5; description column 14, line 26 through column 15, line 20) with flanges running along its longitudinal sides for the placing on of mold elements or panels which are configured as mold frame plates. The flanges are located at approximately half the height of the support. The side of the mold element shell facing the concrete is coplanar with the upper surface of the support so that the supports are imprinted on the under part of the completed concrete ceiling. This is often undesirable. The supports which are thereby necessary are often equipped with a retractable head so that, after a certain period of time, it is possible that the carriers with the mold elements could settle out of the mold configuration so that only the head of the reinforcement continues to support the ceiling.
In order to, with these known molds, prevent a sideward slippage of the utilized mold elements from the flanges, these flanges exhibit a plurality of toes facing in the upper and in the outer directions along the length of support which engage the frame of an inlaid mold element. When placing on the mold element an intermediate space often results between the mold element which has already been put on and the subsequent mold element which must be eliminated by pushing together the last mold element placed.
The underlying purpose of the invention is to effect a support for a ceiling mold in such a manner that a uniform concrete imprint is given to the underside of the ceiling and that the placing on of the mold elements is simple.
SUMMARY OF THE INVENTION
This purpose is achieved in accordance with the invention in that, on both edges of the upper surface of the support, a series of projections are provided for that extend largely upwards and outwards and are arranged at a separation with respect to each other, the projections being adapted for confining or fixing the mold elements, and in that the separation between the projections exhibits twice the separation of an abutment arranged on the underside of the mold element from the edge of the mold element and the separation of the projections from each other corresponds to the length of the side of the mold element which is to be placed on or to a fraction of this dimension.
This configuration has the advantage that the mold elements in the gap between the two projections lie in close proximity to another even when placing on the mold elements, so that a sliding repositioning of the mold elements is not necessary. Furthermore, the mold elements lie on top of the carrier so that they no longer are imprinted on the bottom part of the concrete. By means of the invention, and due to the inventive dimensioning of the gaps, the mold elements between two projections lie, as seen in the longitudinal direction of the support, in close proximity to each other. A particular advantage of the invention is that it can be used to assemble ceiling molds with which all mold elements can be removed by lowering of the support with the assistance of a retractable head.
A strut shaped support for walk-way plates has become known in the art through U.S. Pat. No. 776,419 which is supported at its two ends on posts embedded in the earth and which exhibits two rows of right-angled projections protruding upwardly at the middle of its upper surface upon which the edges of neighboring walk-way plates are placed. Large gaps are provided for in each row at separations from a side length of the walk-way plates into which the downwardly protruding projections, arranged on the corners of the walk-way plates, can engage. These materials are, due to their dimensions alone, not comparable to supports for concrete mol
REFERENCES:
patent: 776419 (1904-01-01), Platt
patent: 1907877 (1933-05-01), Roos
patent: 2401587 (1946-06-01), Smith
patent: 3385557 (1968-05-01), Rambelle
patent: 4280677 (1981-07-01), Shabar
'Peri GmbH
Hackler Walter A.
Weber Thomas R.
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