JPH0756172B2 - Mold panel - Google Patents

Abstract

A shuttering panel (1) made of a bar material and a flat material fixed to the bar material, in particular for the manufacture of shuttering with an open base and side walls for a beam or strip foundation, is described, which is easy to manufacture and may be made into shuttering which is easy to erect. For this purpose a number of parallel, flexible crossbars (2,2',12) are used, which extend transversely across the base area and onto which strips (3,3',13) of a dimensionally stable material are fixed in each case in the area of the side walls. <IMAGE>

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a mold panel for producing molds with an open base, of the kind described in the preamble of claim 1.

[0002]

2. Description of the Related Art Such a mold panel is disclosed in German Patent No. 360188.
It is known from No. 2. The known mold panel consists of a lattice of steel rods and a plastic sheet shrunk on it. For example, to manufacture molds with open bases for elongated beam foundations requires the use of separate mold panels on each of the mold sidewalls. In order to build the foundation for building the mold wall on the ground, the mold panel is bent into an L-shape during the manufacturing process or just before use. Nevertheless, known mold walls must be connected to the ground and / or to each other in order to ensure the required stability of the mold. Moreover, a plastic sheet shrunk on the lattice structure simply spreads on the lattice structure and tightens the lattice structure much more strongly than a plastic sheet fixed by welding, but the plastic sheet does not have a shape-retaining property.

[0003]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a mold panel for a mold which can be manufactured and constructed inexpensively in a simple manner.

[0004]

This object is achieved by the features of claim 1. The mold panel according to the invention makes it possible in a simple manner to produce the desired mold by simply bending the side walls, without any additional tightening and pulling operations. The manufacturing process uses side walls made of shape-retaining material to hold the cross bars at a predetermined distance from each other and at a predetermined position.

It is particularly advantageous to use as the shape-retaining material a corrugated or scale-shaped plate as claimed in claim 2. These plates have hitherto been used, for example, in non-slip stairs for installation in industrial buildings. These plates have a textured surface with a depression on one side of the plate and a protrusion on the opposite side of the plate. In the case of a scale template, the ridge has a further through hole (just like a grater), but the through hole is so small that concrete can hardly pass through it. By using these uneven plates, a moderate roughness is obtained on the sides of the poured concrete part, which creates a good adhesion bridge to the additional concrete part.

However, according to claim 3, it is also possible to use expanded metal, in particular expanded metal of a fine mesh grid, instead of strips.

It is usually sufficient, according to claim 4, to hold the cross bars at predetermined intervals with strips of shape-retaining material. However, it is also possible according to claim 5 to reinforce the transverse bars by means of longitudinal bars before or after the strips of shape-retaining material are attached.

According to claim 6, the vertical bars are preferably arranged at special stressed locations, for example at bends, or according to claim 7, a metal grid is used from the beginning.

The mold according to the invention is produced by attaching a strip of shape-retaining material to a parallel, flat or pre-curved transverse bar, which is later attached at a position corresponding to the side wall. Mounted directly (Claim 8) or with additional vertical bars (Claim 9).

The present invention will now be described in detail with reference to the accompanying drawings.

[0011]

1 shows a mold panel according to the invention with a plurality of parallel horizontal bars 2 made of structural steel. The length of the horizontal bar 2,
The diameter and spacing are selected depending on the desired mold and the requirements to be met. The ends of the horizontal bars 2 are arranged in the same row as each other, and on both sides thereof, are connected to respective strips 3 made of pleated plates capable of retaining a shape, and between the strips 3 of the horizontal bar 2. The part located is not covered. The width and length of the strip 3 roughly corresponds to the desired sidewall dimensions of the mold.

FIG. 2 shows an embodiment of the mold panel 1'which has already been bent to form another U-shaped mold, for example of the type used for elongated beam foundations. Mold panel 1 '
Bends so that the strip 3'is located in the area of the side wall and the uncovered area of the crossbar 2'is placed on the surface and forms the foundation.
If necessary, the end faces can be closed by conventional moulding means.

As can be seen from FIG. 3, the strip 3'is a horizontal bar 2 '.
It consists of a scale-shaped plate welded to the side facing inward.
The scale template strip 3'extends from the end of the crossbar 2'to the bend area. The outer side of the horizontal bar 2 ′ is welded to the vertical bar 4. In the case of the embodiment shown, each side wall is provided with two vertical bars each, one of the vertical bars 4 being connected at its end region to a horizontal bar 2 ', the other of the vertical bars 4 being at a bend. Connected to horizontal bar in near area. However, it is also possible to use an additional vertical bar 4 or to replace it entirely with a metal grid (see FIG. 5).

As shown in FIG. 3, a strip made of a scale plate.
3'is welded to the horizontal bar 2'at the position shown by number 5,
The scale 6 protruding from the 3'plate is arranged so as to face the inside of the mold.

FIG. 4 shows an alternative method for using the mold panel according to the invention instead of a circumferentially closed mold, which is similar to the mold panel 1 '(as shown in the figure). Can be used. In this mold, two mold panels that are dimensionally matched to each other are bent to form U-shaped mold parts, which are then mutually 90 ^°.
Staggered and positioned so that each strip 3 of one mold panel 1 covers the exposed area of the horizontal bar 2 of the other mold panel 1. For this application, when the edges of each strip corresponding to the exposed area of the horizontal bar 2 are slightly bent and the bent mold panels are fitted together, the strips 3 overlap each other at the corners,
It is preferable that concrete does not leak from this point.

FIG. 5 shows another mold panel 10 in which the horizontal bars 12 together with the vertical bars 14 form a regular grid. The strip 13 corresponds to the strip of the above embodiment and is directly connected to the horizontal bar 12 of the metal grid. The mold panel 10 is bent so that the vertical bar 14 faces outward. It is also possible to use a conventional welded wire mesh as the metal grid.

This mold panel, or, more properly, this mold part, is preferably manufactured automatically, which means that the required number of horizontal bars are arranged in parallel and fed to the welding device. Therefore, the step of attaching the strip made of the shape-retaining material by welding, spot welding or other technique is included. Before or after attaching the strip, cut the cross bar to the desired length. This is followed by bending the cross bar, if necessary with the lower edge of the strip, to form a U-shaped mold part. However, if desired, bending can be performed before attaching the strip.

The vertical bar can be welded to the horizontal bar before or after the strip. If a metal grid is used, the grid is pre-processed and then connected to strips. In this case, the strip is preferably welded directly to the crossbar. But by welding the strips to the vertical bar,
It is also possible to make the connection between the strip and the horizontal bar via a vertical bar.

The embodiments described above can be modified by replacing the detailed portions shown in the individual drawings. For example,
The strip described in the embodiment of FIG. 2 or 5 can also be bent in the manner shown in FIG. Instead of using pleated or scale-shaped plates for the strips, it is also possible to use expanded metal, in particular commercially available fine mesh grid expanded metal, or other suitable shape-retaining material. The number of horizontal bars or the number of vertical bars can be increased or decreased relative to the number of bars shown in the drawing. If thinner bars were used, the mold parts could be folded directly at the construction site.

[Brief description of drawings]

FIG. 1 is a top view showing a first embodiment of a mold panel according to the present invention.

FIG. 2 is a mold panel according to a second embodiment of the present invention.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is a top view of a mold including two mold parts according to the present invention.

5 is a top view similar to FIG. 2, showing another embodiment of the mold panel according to the present invention.

[Explanation of symbols]

 1 ………… Mold panel 2 ………… Horizontal bar 3 ………… Strip 4 ………… Vertical bar

Claims (9)

[Claims] 1. A mold panel, comprising rod material and a planar material connected to said rod material, for use in producing a mold having at least one open boundary surface and sidewalls, in particular for elongated beam foundations. Can be bent,
Multiple parallel bars extending across the area of the open boundary surface
Mold panel characterized by (2, 2 ', 12) and a strip (3, 3', 13) of shape-retaining material, fixed in the area of the side wall to a horizontal bar (2, 2 ', 12). . 2. The mold panel according to claim 1, wherein the shape-retaining material is a pleated plate or a scale plate. 3. Mold template according to claim 1, characterized in that the shape-retaining material is an expanded metal, in particular a fine mesh grid of expanded metal. 4. The horizontal bars (2, 2 ') are held by the strips (3, 3') at a predetermined distance from each other, as claimed in one of claims 1 to 3. The described mold panel. 5. Mold panel according to claim 1, characterized in that the vertical bars (4) are fixed to the horizontal bars (2, 2 '). 6. Mold panel according to claim 5, characterized in that the vertical bars (4, 14) are arranged in the bend areas of the horizontal bars (2, 2 ', 12). 7. Mold panel according to claim 5 or 6, characterized in that the horizontal bars (2, 2 ', 12) and the vertical bars (4, 14) are interconnected in the form of a grid. 8. A method for manufacturing a mold component, particularly for a mold for constructing an elongated beam-like foundation, having an open base and side walls, which is bendable and across the area of its base. A fixing step of fixing the strips of shape-retaining material to a plurality of extending parallel horizontal bars, and a step of bending the horizontal bars before or after the fixing step so that the horizontal bars limit the shape of the mold component. A method characterized by. 9. Mold panel according to claim 8, characterized in that the vertical bars are fixed to the horizontal bars and the strips are connected to the horizontal bars directly or via the vertical bars.