DE4009242C2 - Process for making a brick - Google Patents

Description

The invention relates to a method for producing a Brick, especially a large one Perforated brick with ground bearing surfaces.

So far, masonry made of hollow bricks has had to be plastered to protect it against water ingress or to give it a decorative surface. this is also valid for large-format, high-precision bricks, with their interlocking butt surfaces are crunched and using a relatively low viscosity Adhesive form a bed joint of almost 1 mm thick. The Plastering the masonry increases the cost price considerably.

A module has become known from DE-GM 73 08 259, who crunched and stuck inside a masonry Bearing surfaces is glued, the visible surface a has circumferential fillet. This fillet can with Grout are grouted, which gives the masonry a decorative surface is awarded.  

The fillet is created with this block by that a tile or the like that is not the whole Visible surface of the block covered, glued to it becomes. This process is cumbersome, too complex and too Making an inexpensive brick with circumferential fillet not suitable.

The object of the invention is therefore a Manufacturing process for an inexpensive hollow brick with a circumferential groove on the visible surface, the bumped and glued to storage surfaces, under To avoid avoiding the disadvantages mentioned above.

This object is achieved in that the ground horizontal sections of the fillet, while the vertical sections are being extruded be incorporated.

The advantage here is that both steps to produce a suitable for gluing Hollow bricks are needed anyway.

The vertical sections are marked by a corresponding mouthpiece of the extruder shaped. At the Grinding the horizontal bearing surface can be done without additional Expense a horizontal fillet section at the same time be ground in if the feed direction is one Grinding machine is placed in the longitudinal direction of the stone. machinery to apply the method in industrial manufacturing have already proven themselves many times in use.

Although it is conceivable to fillets only on one side of the Brick, for example the later outside of the building, to attach, one will not to use confine a fluted brick on both sides  prefer the problem with the proposed method is to be produced.

For aesthetic reasons, it is also proposed engobing at least one face of the brick, roughen or use a special mouthpiece Structure.

To illustrate the invention, a Hollow brick produced according to the invention using the Drawing explained. In detail shows

Fig. 1 shows a detail of the joint between two flat brick in plan view,

Fig. 2 is a side view of a plane brick according to Fig. 1 in a smaller scale,

Fig. 3 shows the top view of the facing brick according to Fig. 2 and

Fig. 4 is a further reduced partial view of masonry executed with such facing bricks.

The crunched so-called face bricks 1 and 2 according to FIG. 1 have very precisely machined bearing surfaces by grinding. A large number of through openings 3 provide them with a high thermal insulation capacity. Before being moved, they are dipped in a relatively thin adhesive and then form a bed joint with a maximum thickness of 1 mm. The abutting surfaces are provided with springs 4 and grooves 5 running in the vertical direction, which engage in one another and produce an extremely fine butt joint.

In order to properly seal these fine but still existing joints, lower and upper horizontal fillet sections 6 and 7 and vertical fillet sections 8 and 9 are attached to both visible sides of the facing tile. They each form a circumferential fillet that frames the visible surface 10 . The visible surface 10 merges over a relatively sharp edge 11 into a fillet inner surface 12 , these two surfaces forming an angle of approximately 85 °. The other fillet inner surface 13 , which adjoins and runs parallel to the visible surface 10 , merges over a further edge into the joint surface provided with tongue and groove or the respective bearing surface 14 , 15 .

The depth t of the fillets is 8 mm in the example. The distance b of the edge 11 from the abutting surface is 6 mm in the example. However, these dimensions can vary as required. The preferred measuring range is approximately 7 to 20 mm for the depth t and 4 to 7 mm for the width b.

Fig. 1 shows that the two fillets together form a dovetail groove 16 , which is to be referred to as a dummy joint and is grouted after placement with a suitable mass. The finished masonry is shown with the joint system 17 shown in FIG. 4. The length l of the facing bricks is 30 cm and the height h is 25 cm.

The vertical fillet sections 8 and 9 are machined into one operation, such as the opening 3, during extrusion. The horizontal fillet sections 6 and 7, however, are ground in when grinding the bearing surfaces 14 and 15 .

Reference list

1 face brick
2 facing bricks
3 opening
4 spring
5 groove
6 fillet section
7 fillet section
8 fillet section
9 fillet section
10 visible surface
11 edge
12 fillet inner surface
13 fillet inner surface
14 storage space
15 storage space
16 dovetail groove
17 joint system
b width
t depth
l length
h height

Claims (4)

1. A method for producing a brick, in particular a large-format perforated brick with ground bearing surfaces, the edges framing at least one visible surface being expanded by a circumferential fillet ( 6 to 9 ), characterized in that the fillet sections ( 6 , 7 ) are ground in on the bearing surfaces and that the fillet sections ( 8 , 9 ) are formed on the abutting surfaces by appropriate shaping of the mouthpiece of an extruder. 2. A method for producing a brick according to claim 1, characterized in that at least one visible surface ( 10 ) is structured by the mouthpiece. 3. A method for producing a brick according to claim 1, characterized in that at least one visible surface ( 10 ) is roughened. 4. A method for producing a brick according to claim 1, characterized in that at least one visible surface ( 10 ) is engobed.