FR2626921A1 - Device for shuttering for buildings to make rounded surfaces - Google Patents

Abstract

The subject of the invention is the production of a device for shuttering for buildings to make rounded surfaces. It consists of the combination of shuttering having a basic reinforcement formed by a vertical wall 1 connected to shuttering formed by a curvilinear element 6, the lower edge of which 8 is flush with the floor slab 12, this rounded section being kept at a pre-determined distance from the vertical wall by the spacers 4, 5 and others. It is more particularly designed for connecting a vertical wall to the bottom of a swimming pool by means of a rounded section flush with the two perpendicular surfaces at its edges.

Description

 The object of the invention relates to the production of a building formwork device for making rounded surfaces.

 It is intended more particularly for the connection of a vertical wall to a swimming pool bottom by a rounding off leveling the two perpendicular surfaces by its edges.

Up to this day, for the dressing of masonry surfaces, profiles comprising the desired curvature were used by means of floats or other manual accessories, or even cylinders which did not allow connections without a solution of continuity and requiring stratifications removing from the homogeneity with binders, concretes or others
The device according to the invention makes it possible, by simple pouring, to link the vertical wall with a horizontal bottom at 900 by a rounded shape, the arenas of which gradually join the bearing surfaces without any solution of continuity in the concrete or other reinforced binder or not forming at the same time vaulted reinforcement.

 It is constituted by the combination of a formwork comprising a basic frame. formed by a vertical wall connected to a formwork formed by a curvilinear element including a lower edge leveling the floor slab, this rounded profile being maintained at a determined distance from the vertical wall by the spacers and others.

In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the object of the invention
Figure 1 is a perspective view of all the elements constituting the formwork.

 Figures 2, 3 schematically represent one of the applications of the device.

 The formwork, fig 1, 2, 3, is constituted by a vertical frame I formed by a metal or other smooth and rigid plate comprising at its base a seat heel 2 and at its upper part a vertical interlocking profile 3.

 It is provided at its upper part with spacing arms or lifting brackets 4, 5 and others installed at appropriate intervals to stabilize and fix the circular formwork 6 formed by a metallic circular arc or similar.

 This profile 6 is assembled on the vertical surface 1 using threaded rods 21 and locking nuts penetrating into the spacer arms 4, 5.

 The upper part 13 of the circular profile 6 is connected to the internal face of the edge 8 by single stiffened spacers 9, 10, 11.

The outer part of the edge 8 level the bottom 12 without intermediate space like the top edge 13 Join the vertical wall
The socket profile 3 receives the plate 14 which has assembly end pieces 15, 16 at each of its ends. The fixings are made by the anchor bolts 22, 231 24.

 These forms 14 and others fit into profiles 3 and 7 for making vertical walls.

All elements are nestable, stackable, juxtaposed and removable and can be used indefinitely for lengths without limitation of dimensions.

By these interlockings 1, 14 posterior, and 71 22 anterior, fig 2, 3 * one obtains in a single pouring of concrete or any binder achieving a compact monolithic mass 19, 20 vertical and horizontal with rounded 6 outside forming jointing reinforcement voltage ,
The progressive jointing of the upper and lower edges 13 and 8 ensures perfect voltage without protrusion or suction.

 The spacers 4, 5 and the like can vary in length to determine the thickness of the prey by increasing or decreasing the spacing 18.

 The various elements are stabilized by bolting 15, 16 and others. the junction angle can preferably be rounded and the installation of copings is carried out directly.

Vertical angles receive the same formwork
However, the shapes, dimensions and arrangements of the various elements, as indeed the materials used for their manufacture, may vary within the limit of the equivalents without changing for this, the general conception of the invention which has just been described.

Claims (3)

 1 Building formwork device for making rounded surfaces more specifically for the construction of swimming pools to allow by a binder pouring without solution of continuity to connect a vertical wall to a perpendicular bottom by a homogeneous assembly having a leveling curvature progressively without protruding or uneven the bearing surfaces, characterized by the combination of a vertical wall (1) with seat heel (2) at its base, and interlocking groove (3) at its upper part connected to a formwork curvilinear (6) by spacer arms (4, 5) in order to produce an intermediate formwork space (18), the vertical wall (1) receiving by interlocking and superposition of other elements by the formwork profile (7) of the formwork curvilinear, the spacer arms (4, 5) determine the dimension of the formwork space (18).  2 Device according to claim 1 characterized in that the rounded formwork (6) is structured by spacers (9, 10, 11, 12) while the superimposed upper forms have end pieces (15, 16) fixed by bolts and nuts (22, 23, 24) and the like.  3 Device according to claim 1 characterized in that the intermediate space (18) forming formwork receives the mortar or binder (19, 20) filling in a compact and homogeneous vertical and horizontal surfaces connected by an external rounded ( 6) forming contiguous reinforcement voltage.