DE7613166U1 - MANTELSTEIN FOR A CHIMNEY - Google Patents

Description

The innovation concerns a mantle block for chimneys.

It is used "for chimneys, as well as" for other masonry, aspired to the hear! gaps between the stones as possible perform evenly. For this purpose, the last stone placed on the applied mortar is put in its exact position pressed and tapped, taking excess mortar out of the Fugue displaced. On the outside of the chimney, the oozing mortar can easily be removed with a trowel will. In the often narrow lines of the sometimes relatively large mantle stones, however, this causes difficulties, is cumbersome and costs valuable working time. In practice, the one inward remains in the trains of the mantle stones So swollen mortar simply hangs, becomes hard and interferes with further expansion of the chimney or even its Function.

The innovation is based on the task of a chimney mantle brick to create in which the problem described above does not occur or at least significantly alleviated is, and according to the innovation, this task is thereby

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solves that the mantle stone on the top and / or bottom in the area forming the mortar joint, this to the outside widening, beveled or stepped off.

The proposed formation of the mantle stone means that each mortar joint is set between one another Mantle stones only a relatively small amount on the inside when adjusting a stone on the applied mortar is narrow gap through which no or only a little mortar penetrates, which is thus essentially after is displaced on the outside, where it can be easily removed.

In a preferred practical embodiment, the bevel and / or the stepped shoulder in the longitudinal section comprises only the outer two thirds of the area forming the mortar joint. When laying the mortar is essentially on the beveled or stepped area of the previously placed mantle stone. Then the When the next stone is placed on it, the mortar essentially only swells inward to the extent that it is the narrowest Fills part of the joint, but no longer oozes inwards to any significant extent.

The proposed innovation is particularly advantageous in connection with longitudinal ribs in the flue of the mantle stone, which between the mantle stones and the inner peelings

the smoke flues form ventilated cavities, because hardened mortar that has swelled inward from the mortar joints would hinder the insertion of the inner layers of the "chimney and the desired rear ventilation disadvantageous influence.

To the effects possibly still inside from the Mortar joints to further reduce leaked mortar,

7613166 13.0177

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is provided in a further expedient embodiment of the innovation, that the longitudinal ribs end at least at one end at a distance from the front end edge or at least are beveled at one end, so that the longitudinal ribs at the mortar joints in the finished chimney are interrupted and thus there is a cross connection between the cavities formed by the longitudinal ribs.

The last-mentioned beveling of the ends of the longitudinal ribs also has the further advantage that thereby the introduction the inner layers of the chimney in the uppermost mantle brick is facilitated.

The innovation is shown below on the basis of one in the drawing illustrated embodiment explained in more detail. Show it:

Fig. 1 is a partial longitudinal section through a chimney VGir dei bricked from mantle stones M according to the innovation? As.—

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FIG. 2 shows a detail from FIG. 1 on a larger scale,

FIG. 3 shows a cross section through the chimney according to FIG. 1 and 2 after completion.

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The chimney shown in the drawing is made from "" " stacked mantle stones 10 bricked and in a known V / ice with the masonry or in general connected to the wall of a building, which is not detailed here needs to be entered. The cross-section of the mantle stones depends on the puncture of the chimney. The invention is equally applicable to one and more— speedy chimneys can be used.

Nowadays chimneys are usually built with multiple layers. Mostly located in the flues of the cantilever stones 10 a layer of thermal insulation material (Pig. 3) and an inner shell made of chamotte 14.

In practice it has now been shown that mortar penetrates into the trains when the blocks are being walled up, becomes hard there and hinders the introduction of the inner shells. In addition, a further deficiency was observed that under unfavorable conditions in the area of the thermal insulation layer and on the inside of the mantle stone a moisture level - »1-ϊ OA Ä -« »a *» V> T α er αί · α ++ · Ρ-ΐτ > Λβ «Iron« Λοτ <iiie ί an! ί OperHc ΐΐί σοη ··

Shank of the thermal insulation layer is greatly reduced. The Indian The chimney shown in the drawing therefore has longitudinal ribs 16 in the flues of the mantle stones 10, the spaces between them extend essentially over the chimney height and above and below in connection with the outside atmosphere stand so that the mantle stone is ventilated.

In order to prevent the passage of moisture through the thermal insulation layer into the cladding brick, it may also be possible to use an expediently with the thermal insulation layer, which at " For example, made of glass or mineral fibers, connected aluminum foil 18 may be provided.

The introduction of the thermal insulation material 12 in sections, in the flue of the chimney is facilitated if the longitudinal ribs 16, as from Pig. 1 and 2, each on

VB 8727 Hg / April 21, 1976

beveled at the top. The inclined surfaces are denoted by 18 in the drawing. By keeping them at a distance below the upper edge of the mantle stones IO, results in the area of the joint between two stacked stones Cladding stones create a free cross connection between the individual cavities between the longitudinal ribs 16.

The above-described formation of the smoke flues in the mantle stones is in addition to the usual inner layers the chimneys a further layer, namely dia if necessary circulating air layer in the cavities between the ribs 16, which helps to keep the temperature on the outer surfaces the chimney is lowered. An otherwise required layer of thermal insulation material can therefore be omitted « It is possible that only one aluminum foil 18 is sufficient between the firebrick tube 14 and the mantle stone 10.

Because of the introduction of the inner layers in the chimney and around not the desired one in the embodiment shown To impair ventilation of the mantle stone, it is

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Korxeliugen between the lantels legs inwards ia the -c / iige penetrates and becomes hard there. It has surprisingly been shown that this disadvantage can be avoided in a simple manner by systematically influencing the cross-section of the mortar joints between the casing stones by chamfering the top and / or underside of the casing stones, for example as shown in FIG and / or stepped down, so that sirJi inevitably results in a significantly lower joint height on the inside than on the outside. In FIG. 2, the narrow joint area, which results over approximately a third of the joint length measured from the inside to the outside, is designated by 20, while the expanded joint area is designated by 22. When laying the mantle stones, mortar is only applied in this latter area. If you then put the next mantle stone on top, the mortar is distributed over the entire mortar joint, but due to the narrow joint area, practically no mortar can emerge from the inside of the joint. ^ ^;

VB 8727 Hg / April 21, 1976

7813166

In practical tests, the embodiment shown in FIG. 2 with a straight underside and partially bevelled top of the mantle stones has proven particularly successful. The stones can be stacked easily, and the inclined surface effects the desired displacement of the mortar each time a mantle stone is placed on it. The inclined surface marked 24 on the upper side of the mantle stones only needs to have an inclination of a few degrees in view of the thickness of a normal mortar joint. The shoulder indicated at 26 at the transition between the narrow area 20 and the enlarged area 22 of the mortar joint is correspondingly small.

Claims

VB 8727 Hg / April 21, 1976

7813166 nn.77

Claims (1)

Protection claims 1. Mantle stone for a chimney, thereby characterized in that it is on the top and / or bottom in which the mortar joint (20,22) bilderrien area, which widening outwards »is beveled or stepped off. 2. Mantelsteun according to claim 1, characterized in that ken "n shows that the bevel and / or AeT stepped shoulder in the longitudinal section only the outer ^s two thirds of the Be empire ³ includes. j! » 3- mantle stone according to claim 1 or 2, characterized marked that he was in the smoke flue with Longitudinal ribs (16) is formed. 4. Mantle according to claim 3 »characterized in that that the longitudinal ribs at least at one end at a distance from the front end edge end up", 5. mantle stone according to claim 4, characterized in that that the longitudinal ribs £ 16) are bevelled at least at one end. 7113166 UM.7T