EP0204925B1 - Building block - Google Patents

Building block Download PDF

Info

Publication number
EP0204925B1
EP0204925B1 EP86105319A EP86105319A EP0204925B1 EP 0204925 B1 EP0204925 B1 EP 0204925B1 EP 86105319 A EP86105319 A EP 86105319A EP 86105319 A EP86105319 A EP 86105319A EP 0204925 B1 EP0204925 B1 EP 0204925B1
Authority
EP
European Patent Office
Prior art keywords
building block
handling
recess
groove
milling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86105319A
Other languages
German (de)
French (fr)
Other versions
EP0204925A2 (en
EP0204925A3 (en
Inventor
Gert Dipl.-Ing. Leidner
Johann Kiefer
Johann Felbermeir
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ytong AG
Original Assignee
Ytong AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6272863&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0204925(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ytong AG filed Critical Ytong AG
Priority to AT86105319T priority Critical patent/ATE59078T1/en
Publication of EP0204925A2 publication Critical patent/EP0204925A2/en
Publication of EP0204925A3 publication Critical patent/EP0204925A3/en
Application granted granted Critical
Publication of EP0204925B1 publication Critical patent/EP0204925B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/12—Apparatus or processes for treating or working the shaped or preshaped articles for removing parts of the articles by cutting
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/28—Walls having cavities between, but not in, the elements; Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0256—Special features of building elements
    • E04B2002/0258—Gripping or handling aids

Definitions

  • the invention relates to a brick, in particular in the form of a so-called plan block for almost seamless interior and exterior walls of any kind, and a method for its production and an apparatus for performing the method.
  • a brick of the type specified in the preamble of claim 1 is described and shown in DE-U-7 317 165.
  • a hollow block is provided with grip pockets on the end faces, which are cuboid in shape with grip surfaces extending upwards outwards and counter surfaces sloping downwards outwards.
  • Handle bags in this configuration are not only insufficient for ergonomic reasons because there is no easy-to-use shape, but they are also difficult to manufacture, e.g. B. by molding, whereby an expensive design and manufacture is specified.
  • a milling machine for milling the upper or lower side of a gas concrete strand extending parallel to the driving direction with a self-supporting, still semi-plastic consistency is known, the milling machine consisting of a tubular axis, around the lateral surface of which a number of strips is attached, which carry U-shaped, stiff profiled milling wires.
  • the invention has for its object to develop a brick made of aerated concrete, in particular gas concrete, a method for producing the brick and / or a device for performing the method so that a handle groove with a particularly large grip area can be created on the brick, in particular, the positionability.
  • gripping surfaces can therefore be created, because gripping surfaces extending beyond them can be created on both sides of the cutouts. This significantly improves handling because, on the one hand, larger gripping surfaces are available and, on the other hand, it can be fitted into the grip pockets more easily and easily.
  • the grip grooves according to the invention can be machined in a simple manner by milling, which creates the possibility of attaching them to aerated concrete, in particular gas concrete, and thereby achieving low manufacturing costs.
  • the handle groove and the recess are simultaneously milled out in a circular arc when the fermentation of the conventionally produced aerated concrete mass is complete, the mold is opened and the mass is cut into rectangular brick blanks.
  • This method enables the handle groove to be worked in quickly and easily, which simplifies production and reduces production costs.
  • the further developments according to claim 7 and / or 8 also contribute to this.
  • the device according to the invention according to claim 9 for carrying out the method is of a simple and inexpensive construction, and it is particularly suitable for milling out grip grooves according to the invention.
  • the brick is a so-called plane block made of gas concrete with the bottom surface 1, side surfaces 2, 3, end surfaces 4, 5 and the surface 6.
  • Other shapes are on the market, in which the invention can also be implemented.
  • the plan block shown has dimensions of 25 x 25 x 62.5 cm. Such a plan block is to be transported and positioned by hand when laying the walls. It is not very heavy, but it is bulky due to its dimensions.
  • the invention provides for the introduction of special grip grooves 7 in the end faces 4, 5, the depth of which extends parallel, ie continuously, in the stone parallel to the bottom face 1 or surface 6 and can run from the side face 2 to the side face 3. It is advantageous if the grip grooves 7, as shown, are arranged symmetrically to the axis 8 opposite one another.
  • the grip grooves 7 are located just below the surface 6, a space or recess 9 being provided in the area from the surface 6 to the grip groove 7, which is less deep than the grip groove 7.
  • the remaining depth of the grip groove 7 is chosen in this way that there is a sufficient deep gripping surface 10.
  • the grip groove 7 has a cross section with preferably mutually parallel flanks (surfaces 10, 11), wherein, as can be seen from the exemplary embodiment, the bottom surface 11 - seen in cross section - is longer than the grip surface 10.
  • the grip groove 7 and the recess 9 run as shown in the plan view (FIG. 1) - in the shape of a circular arc. In this case, only a radius which is smaller in comparison with the radius of the groove depth is to be selected for the recess 9, so that the overlap 12 is uniform, the radii being perpendicular to a perpendicular which lies in the vertical central plane of the brick (not shown).
  • the grip groove 7 makes the handling of the plan block considerably easier. At first it is easy to see how and where the brick should be gripped and positioned.
  • the grip groove 7 is located at a point at which the recess 9 - as shown - runs out in the area of the surface 6, which is to assume a specific position in the building, so that optimum strength absorption of the masonry can result (e.g. position regarding the direction of the stone when fermenting the mass, etc.).
  • An advantage of the arcuate grip grooves according to the invention is that the hand is gently guided to the deepest point of the grip groove 7, which is located in the center M of the end face 4, 5 (FIG. 2), so that a secure grip is possible.
  • the handle groove 7 is visible through the recess 9 in the top view. It is surprising that the strength of the grip groove does not reduce the strength, and that both the thermal insulation and the longitudinal sound insulation in the direction of the grip groove 7 - grip groove 7, that is to say from face to face, is better, which cannot yet be explained.
  • the grip groove arrangement according to the invention is also provided for face blocks with tongue and groove profiles on the end faces 4, 5 (not shown). Part of the spring profile is cut away in the area of the spring profile. In the area of the groove profile, it follows that the grip groove 7 is expediently deeper than the groove profile itself.
  • the grip groove 7 In the case of other dimensions of the plan block that deviate significantly from the specified dimensions, correspondingly different dimensions are provided for the grip groove 7.
  • the grip grooves 7 and the recesses 9 are milled out when the fermentation of the gas concrete mass produced in the usual way is completed, the mold is opened and the mass located on the fermentation floor is cut.
  • a plurality of cutters which are arranged on a drive shaft, a plurality of grip grooves 7 and recesses are milled at the same time, but a grip groove 7 and a recess 9 are respectively introduced into an already cut blank.
  • a milling tool is shown schematically in FIG. 4. It consists of a tube 13, on the jacket of which is attached at right angles to the longitudinal axis 14, milling wire stirrups 15 which protrude radially outwards.
  • the shape of the milling wire bracket 15 corresponds to the cross-sectional shape of the recess 9 and the handle groove 7. Accordingly, the shape of the milling wire bracket 15 for producing the handle groove 7 shown in FIGS. 1 to 3, as can be seen from FIG. shaped.
  • the tube 13 is rotated about its longitudinal axis 14 with suitable drive means and moved to the blank 16. The milling then begins while the tube 13 is moved further towards the blank 16 until the desired depth of the grip groove 7 and recess 9 is reached. Then the tube 13 is moved back again.
  • FIG. 5 Shown is the hardness floor 17, which is located on a tank car, not shown.
  • the already cut blanks 16, into which the grip grooves 7 with recesses 9 are to be milled, are stored on the hardness base 17.
  • the end faces 4 and 5 are located on the long sides of the hardness floor 17.
  • a plurality of tubes 13 are arranged horizontally one above the other at a distance and in each case carry milling wire stirrups 15 one behind the other, so that a plurality of recesses 9 and grip grooves 7 can be milled in at the same time.
  • the tubes 13 are connected to a single drive (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Road Paving Structures (AREA)
  • Table Devices Or Equipment (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

Brick made of porous concrete, especially gas concrete, with at least two plane faces (4, 5), in which a groove or tongue profile can preferably be provided on these faces, a groove (7) being made in each of the faces (4, 5). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Mauerstein, insbesondere in Form eines sogenannten Planblocks für fast fugenlose Innen- und Außenwände jeder Art, und ein Verfahren zu dessen Herstellung sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a brick, in particular in the form of a so-called plan block for almost seamless interior and exterior walls of any kind, and a method for its production and an apparatus for performing the method.

Ein Mauerstein der im Oberbegriff des Anspruchs 1 angegebenen Art ist im DE-U-7 317 165 beschrieben und dargestellt. Bei dieser bekannten Ausgestaltung ist ein Hohlblockstein mit Grifftaschen an den Stirnflächen versehen, die quaderförmig ausgebildet sind mit sich nach außen aufwärts erstreckenden Griffflächen und nach außen abwärts geneigten Gegenflächen. Grifftaschen in dieser Ausgestaltung sind nicht nur aus ergonomischen Gründen unzureichend, weil es an einer handhabungsfreundlichen Form fehlt, sondern sie lassen sich auch nur schwierig herstellen, z. B. durch Formen, wodurch eine teure Bauweise und Herstellung vorgegeben ist. Dies gilt insbesondere bei einem Mauerstein aus Porenbeton, wie Gasbeton, dessen Stirnflächen geschnitten werden, da ein Einformen nach dem Schneiden kaum möglich ist.A brick of the type specified in the preamble of claim 1 is described and shown in DE-U-7 317 165. In this known embodiment, a hollow block is provided with grip pockets on the end faces, which are cuboid in shape with grip surfaces extending upwards outwards and counter surfaces sloping downwards outwards. Handle bags in this configuration are not only insufficient for ergonomic reasons because there is no easy-to-use shape, but they are also difficult to manufacture, e.g. B. by molding, whereby an expensive design and manufacture is specified. This applies in particular to a brick made of aerated concrete, such as gas concrete, the end faces of which are cut, since shaping is hardly possible after cutting.

Es ist aus DE-A-2 529 337 bekannt, einen Mauerstein aus Gasbeton nach dem Gießen und Ansteifen seiner Masse sowie Befreien von den Formteilen in horizontaler und/oder vertikaler Richtung zu zerschneiden und im noch nicht gehärteten Zustand der Masse Vorsprünge und Ausnehmungen an den sich etwa senkrecht zur Treibrichtung erstreckenden Stirnflächen zu fräsen.It is known from DE-A-2 529 337 to cut a brick made of gas concrete after pouring and stiffening its mass and freeing it from the molded parts in the horizontal and / or vertical direction and in the not yet hardened state of the mass projections and recesses on the to mill end faces extending approximately perpendicular to the driving direction.

Außerdem ist aus der DE-A-2 112 048 eine Fräse zum Fräsen der sich parallel zur Treibrichtung erstreckenden Ober- oder Unterseite eines Gasbetonstranges mit selbsttragender, noch halbplastischer Konsistenz bekannt, wobei die Fräse aus einer röhrenförmigen Achse besteht, um deren Mantelfläche eine Anzahl Leisten befestigt ist, die davon U-förmig ausgehende, steife profilierte Fräsdrähte tragen.In addition, from DE-A-2 112 048 a milling machine for milling the upper or lower side of a gas concrete strand extending parallel to the driving direction with a self-supporting, still semi-plastic consistency is known, the milling machine consisting of a tubular axis, around the lateral surface of which a number of strips is attached, which carry U-shaped, stiff profiled milling wires.

Der Erfindung liegt die Aufgabe zugrunde, einen Mauerstein aus Porenbeton, insbesondere Gasbeton, ein Verfahren zum Herstellen des Mauersteins und/oder eine Vorrichtung zur Durchführung des Verfahrens so weiterzubilden, daß am Mauerstein eine Griffnut mit besonders großer Grifffläche geschaffen werden kann, die die Handhabbarkeit, insbesondere die Positionierbarkeit, erleichtert.The invention has for its object to develop a brick made of aerated concrete, in particular gas concrete, a method for producing the brick and / or a device for performing the method so that a handle groove with a particularly large grip area can be created on the brick, in particular, the positionability.

Diese Aufgabe wird durch die Merkmale der Anspruchs 1, 6 bzw. 9 gelöst.This object is achieved by the features of claims 1, 6 and 9, respectively.

Bei den erfindungsgemäßen Ausgestaltungen lassen sich deshalb wesentlich größere Griffflächen schaffen, weil sich auf beiden Seiten der Aussparungen über diese hinaus erstreckende Griffflächen geschaffen werden können. Hierdurch wird die Handhabung wesentlich verbessert, weil zum einen größere Griffflächen zur Verfügung stehen und zum anderen einfacher und leichter in die Grifftaschen eingefaßt werden kann. Außerdem lassen sich die erfindungsgemäßen Griffnuten in einfacher Weise spanabhebend durch Fräsen einarbeiten, wodurch die Möglichkeit geschaffen wird, sie an Porenbeton, insbesondere Gasbeton, anzubringen, und wodurch niedrige Herstellungskosten erreicht werden.In the embodiments according to the invention, much larger gripping surfaces can therefore be created, because gripping surfaces extending beyond them can be created on both sides of the cutouts. This significantly improves handling because, on the one hand, larger gripping surfaces are available and, on the other hand, it can be fitted into the grip pockets more easily and easily. In addition, the grip grooves according to the invention can be machined in a simple manner by milling, which creates the possibility of attaching them to aerated concrete, in particular gas concrete, and thereby achieving low manufacturing costs.

In den Ansprüchen 2 bis 5 sind vorteilhafte Weiterbildungen des erfindungsgemäßen Mauersteins beschrieben.In the claims 2 to 5 advantageous developments of the brick according to the invention are described.

Beim erfindungsgemäßen Verfahren nach Anspruch 6 zur Herstellung des erfindungsgemäßen Mauersteins ist vorgesehen, die Griffnut und die Aussparung gleichzeitig kreisbogenförmig auszufräsen, wenn die Gärung der üblich hergestellten Porenbetonmasse abgeschlossen, die Form geöffnet und die Masse zu quaderförmigen Mauerstein-Rohlingen geschnitten ist. Dieses Verfahren ermöglicht ein einfaches und schnelles Einarbeiten der Griffnut, wodurch die Herstellung vereinfacht und die Herstellungskosten gesenkt werden. Hierzu tragen auch die Weiterbildungen nach Anspruch 7 und/oder 8 bei.In the method according to the invention according to claim 6 for the production of the brick according to the invention, it is provided that the handle groove and the recess are simultaneously milled out in a circular arc when the fermentation of the conventionally produced aerated concrete mass is complete, the mold is opened and the mass is cut into rectangular brick blanks. This method enables the handle groove to be worked in quickly and easily, which simplifies production and reduces production costs. The further developments according to claim 7 and / or 8 also contribute to this.

Die erfindungsgemäße Vorrichtung gemäß Anspruch 9 zur Durchführung des Verfahrens ist von einfacher und kostengünstig herstellbarer Bauart, und sie eignet sich vorzüglich dazu, erfindungsgemäße Griffnuten auszufräsen.The device according to the invention according to claim 9 for carrying out the method is of a simple and inexpensive construction, and it is particularly suitable for milling out grip grooves according to the invention.

Vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung sind in den Unteransprüchen 10 bis 12 beschrieben.Advantageous developments of the device according to the invention are described in subclaims 10 to 12.

Nachfolgend wird die Erfindung anhand der Zeichnung beispielhaft näher erläutert. Es zeigen:

  • Fig. eine Draufsicht auf einen erfindungsgemäßen Mauerstein;
  • Fig. 2 eine Stirnansicht des Mauersteins;
  • Fig. 3 den Schnitt 111-111 in Fig. 1;
  • Fig. 4 schematisch ein Fräswerkzeug;
  • Fig. 5 schematisch eine Vorrichtung zur Herstellung von gleichzeitig mehreren Ausnehmungen und Nuten.
The invention is explained in more detail below using the drawing as an example. Show it:
  • Fig. A plan view of a brick according to the invention;
  • Fig. 2 is an end view of the brick;
  • 3 shows the section 111-111 in Fig. 1.
  • 4 schematically shows a milling tool;
  • Fig. 5 shows schematically a device for producing a plurality of recesses and grooves simultaneously.

Der Mauerstein ist ein sogenannter Planblock aus Gasbeton mit der Bodenfläche 1, Seitenflächen 2, 3, Stirnflächen 4, 5 und der Oberfläche 6. Andere Raumformen sind auf dem Markt, bei denen die Erfindung ebenfalls verwirklicht werden kann. Beispielsweise hat der abgebildete Planblock Abmessungen von 25 x 25 x 62,5 cm. Ein solcher Planblock ist beim Mauern von Hand zu transportieren und zu positionieren. Er ist zwar nicht sehr schwer, dennoch aber wegen seiner Abmessungen unhandlich.The brick is a so-called plane block made of gas concrete with the bottom surface 1, side surfaces 2, 3, end surfaces 4, 5 and the surface 6. Other shapes are on the market, in which the invention can also be implemented. For example, the plan block shown has dimensions of 25 x 25 x 62.5 cm. Such a plan block is to be transported and positioned by hand when laying the walls. It is not very heavy, but it is bulky due to its dimensions.

Die Erfindung sieht vor, in den Stirnflächen 4, 5 besondere Griffnuten 7 einzubringen, die mit ihrer Tiefenerstreckung parallel zur Bodenfläche 1 bzw. Oberfläche 6 im Stein ununterbrochen, das heißt durchgehend, verlaufen und dabei von der Seitenfläche 2 zur Seitenfläche 3 verlaufen können. Vorteilhaft ist es, wenn die Griffnuten 7 -wie abgebildet-symmetrisch zurAchse 8 sich gegenüberliegend angeordnet sind. Die Griffnuten 7 befinden sich kurz unterhalb der Oberfläche 6, wobei im Bereich von der Oberfläche 6 bis zur Griffnut 7 ein Freiraum bzw. eine Ausnehmung 9 vorgesehen ist, die weniger tief ist als die Griffnut 7. Die verbleibende Tiefe der Griffnut 7 ist so gewählt, daß sich eine ausreichende tiefe Grifffläche 10 ergibt.The invention provides for the introduction of special grip grooves 7 in the end faces 4, 5, the depth of which extends parallel, ie continuously, in the stone parallel to the bottom face 1 or surface 6 and can run from the side face 2 to the side face 3. It is advantageous if the grip grooves 7, as shown, are arranged symmetrically to the axis 8 opposite one another. The grip grooves 7 are located just below the surface 6, a space or recess 9 being provided in the area from the surface 6 to the grip groove 7, which is less deep than the grip groove 7. The remaining depth of the grip groove 7 is chosen in this way that there is a sufficient deep gripping surface 10.

Die Griffnut 7 weist einen Querschnitt mit vorzugsweise zueinander parallelen Flanken (Flächen 10, 11) auf, wobei wie aus dem Ausführungsbeispiel ersichtlich - die bodenseitige Fläche 11 - im Querschnitt gesehen - länger ausgeführt ist als die Grifffläche 10.The grip groove 7 has a cross section with preferably mutually parallel flanks (surfaces 10, 11), wherein, as can be seen from the exemplary embodiment, the bottom surface 11 - seen in cross section - is longer than the grip surface 10.

Die Griffnut 7 und die Ausnehmung 9 verlaufen wie in der Draufsicht (Fig. 1) abgebildet - kreisbogenförmig. Dabei ist lediglich ein im Vergleich mit dem Radius der Nuttiefe geringerer Radius für die Ausnehmung 9 zu wählen, so daß die Überdeckung 12 gleichmäßig ist, wobei die Radien senkrecht zu einer Senkrechten liegen, die in der senkrechten Mittelebene des Mauersteins liegt (nicht dargestellt).The grip groove 7 and the recess 9 run as shown in the plan view (FIG. 1) - in the shape of a circular arc. In this case, only a radius which is smaller in comparison with the radius of the groove depth is to be selected for the recess 9, so that the overlap 12 is uniform, the radii being perpendicular to a perpendicular which lies in the vertical central plane of the brick (not shown).

Die erfindungsgemäße Griffnut 7 erleichtert die Handhabung des Planblocks ganz erheblich. Zunächst ist leicht erkennbar, wie und wo der Mauerstein gefaßt und positioniert werden soll. Dabei befindet sich die Griffnut 7 an einer Stelle, an der die Ausnehmung 9 - wie abgebildet - im Bereich der Oberfläche 6 ausläuft, die eine bestimmte Lage im Bauwerk einnehmen soll, so daß sich optimale Festigkeitsaufnahmen des Mauerwerks ergeben können (z. B. Lage bezüglich der Steinrichtung beim Gären der Masse usw.). Vorteilhaft bei den erfindgsgemäßen bogenförmigen Griffnuten ist, daß die Hand leichtfühlig zur tiefsten Stelle der Griffnut 7 geleitet wird, die sich in der Mitte M der Stirnfläche 4, 5 (Fig. 2) befindet, so daß ein sicherer Griff möglich ist. Dabei ist ebenso wichtig, daß die Griffnut 7 durch die Ausnehmung 9 auch in der Draufsicht sichtbar ist. Überraschend ist, daß durch die Griffnutausbildung die Festigkeit nicht gemindert wird, und daß sowohl die Wärmedämmung als auch die Längsseitenschalldämpfung in Richtung Griffnut 7 - Griffnut 7, also von Stirnseite zu Stirnseite besser wird, was noch nicht erklärbar ist.The grip groove 7 according to the invention makes the handling of the plan block considerably easier. At first it is easy to see how and where the brick should be gripped and positioned. The grip groove 7 is located at a point at which the recess 9 - as shown - runs out in the area of the surface 6, which is to assume a specific position in the building, so that optimum strength absorption of the masonry can result (e.g. position regarding the direction of the stone when fermenting the mass, etc.). An advantage of the arcuate grip grooves according to the invention is that the hand is gently guided to the deepest point of the grip groove 7, which is located in the center M of the end face 4, 5 (FIG. 2), so that a secure grip is possible. It is also important that the handle groove 7 is visible through the recess 9 in the top view. It is surprising that the strength of the grip groove does not reduce the strength, and that both the thermal insulation and the longitudinal sound insulation in the direction of the grip groove 7 - grip groove 7, that is to say from face to face, is better, which cannot yet be explained.

Die erfindungsgemäße Griffnutanordnung ist auch für Planblöcke mit Nut- und Federprofilen an den Stirnflächen 4, 5 vorgesehen (nicht dargestellt). Dabei ist im Bereich des Federprofils ein Teil des Federprofils weggeschnitten. Im Bereich des Nutprofils ergibt sich, daß die Griffnut 7 zweckmäßigerweise tiefer ist als das Nutprofil selbst.The grip groove arrangement according to the invention is also provided for face blocks with tongue and groove profiles on the end faces 4, 5 (not shown). Part of the spring profile is cut away in the area of the spring profile. In the area of the groove profile, it follows that the grip groove 7 is expediently deeper than the groove profile itself.

Bei den oben angegebenen Abmessungen des Planblocks ist es günstig, wenn die Höhe H1 der Ausnehmung 9 4 cm und die Höhe H2 der Nut 7,3 cm (Fig. 2) sowie die maximale Tiefe T2 der Griffnut 7, von der Stirnfläche gerechnet, 3,5 cm und die maximale Tiefe T1 der Ausnehmung 9, von der Stirnfläche gerechnet, 1,5 cm betragen. Bei anderen, von den angegebenen Abmessungen erheblich abweichenden Abmessungen des Planblocks, werden entsprechend andere Abmessungen für die Griffnut 7 vorgesehen.With the dimensions of the plan block given above, it is advantageous if the height H 1 of the recess 9 4 cm and the height H 2 of the groove 7.3 cm (FIG. 2) and the maximum depth T 2 of the grip groove 7 from the end face calculated, 3.5 cm and the maximum depth T 1 of the recess 9, calculated from the end face, be 1.5 cm. In the case of other dimensions of the plan block that deviate significantly from the specified dimensions, correspondingly different dimensions are provided for the grip groove 7.

Nach einer besonderen Ausführungsform der Erfindung werden die Griffnuten 7 und die Ausnehmungen 9 ausgefräst, wenn die Gärung der wie üblich hergestellten Gasbetonmasse abgeschlossen, die Form geöffnet und die sich auf dem Gärboden befindliche Masse geschnitten ist. Mit einer Vielzahl von Fräsern, die auf einer Antriebswelle angeordnet sind, werden mehrere Griffnuten 7 und Ausnehmungen gleichzeitig gefräst, wobei jedoch davon jeweils eine Griffnut 7 und eine Ausnehmung 9 in einen bereits geschnittenen Rohling eingebracht werden.According to a special embodiment of the invention, the grip grooves 7 and the recesses 9 are milled out when the fermentation of the gas concrete mass produced in the usual way is completed, the mold is opened and the mass located on the fermentation floor is cut. With a plurality of cutters, which are arranged on a drive shaft, a plurality of grip grooves 7 and recesses are milled at the same time, but a grip groove 7 and a recess 9 are respectively introduced into an already cut blank.

Ein Fräswerkzeug ist in Fig. 4 schematisch abgebildet. Es besteht aus einem Rohr 13, auf dessen Mantel rechtwinklig zur Längsachse 14 abstehende Fräsdraht-Bügel 15 befestigt sind, die radial nach außen abstehen. Die Form der Fräsdraht-Bügel 15 entspricht der Querschnittsform der Ausnehmung 9 und der Griffnut 7. Demgemäß ist die Form der Fräsdraht-Bügel 15 zur Herstellung der in den Fig. 1 bis 3 abgebildeten Griffnut 7, wie aus Fig. 4 erkennbar, L-förmig. Das Rohr 13 wird um seine Längsachse 14 mit geeigneten Antriebsmitteln in Rotation versetzt und an den Rohling 16 herangefahren. Es beginnt danach das Ausfräsen, während das Rohr 13 weiter an den Rohling 16 herangefahren wird, bis die gewünschte Tiefe der Griffnut 7 und Ausnehmung 9 erreicht ist. Dann wird das Rohr 13 wieder zurückgefahren.A milling tool is shown schematically in FIG. 4. It consists of a tube 13, on the jacket of which is attached at right angles to the longitudinal axis 14, milling wire stirrups 15 which protrude radially outwards. The shape of the milling wire bracket 15 corresponds to the cross-sectional shape of the recess 9 and the handle groove 7. Accordingly, the shape of the milling wire bracket 15 for producing the handle groove 7 shown in FIGS. 1 to 3, as can be seen from FIG. shaped. The tube 13 is rotated about its longitudinal axis 14 with suitable drive means and moved to the blank 16. The milling then begins while the tube 13 is moved further towards the blank 16 until the desired depth of the grip groove 7 and recess 9 is reached. Then the tube 13 is moved back again.

Vorteilhaft ist, auf einem langen Rohr 13 mehrere Fräsdraht-Bügel 15 hintereinander fluchtend oder zweckmäßigerweise hintereinander und seitlich am Umfang versetzt (nicht dargestellt) vorzusehen sowie mehrere Rohre 13 davon übereinander auf Abstand anzuordnen und mit einem einzigen Antrieb zu versehen. Man kann damit eine ganze Wagenladung auf einmal bearbeiten- .Eine solche Fräsvorrichtung und Verfahrensweise ist in Fig. 5 angedeutet. Gezeigt wird der Härteboden 17, der sich auf einem nicht dargestellten Kesselwagen befindet. Auf dem Härteboden 17 lagern die bereits geschnittenen Rohlinge 16, in die die Griffnuten 7 mit Ausnehmungen 9 eingefräst werden sollen. Dabei befinden sich die Stirnflächen 4 und 5 an den Längsseiten des Härtebodens 17. Mehrere Rohre 13 sind horizontal übereinander auf Abstand angeordnet und tragen jeweils hintereinander Fräsdraht-Bügel 15, so daß gleichzeitig mehrere Ausnehmungen 9 und Griffnuten 7 eingefräst werden können. Die Rohre 13 stehen mit einem einzigen Antrieb in Verbindung (nicht dargestellt).It is advantageous to provide a plurality of milling wire brackets 15 in line or expediently one behind the other and laterally offset (not shown) on a long tube 13 and to arrange a plurality of tubes 13 at a distance from one another and to provide them with a single drive. One can process an entire truck load at once. Such a milling device and method is indicated in FIG. 5. Shown is the hardness floor 17, which is located on a tank car, not shown. The already cut blanks 16, into which the grip grooves 7 with recesses 9 are to be milled, are stored on the hardness base 17. The end faces 4 and 5 are located on the long sides of the hardness floor 17. A plurality of tubes 13 are arranged horizontally one above the other at a distance and in each case carry milling wire stirrups 15 one behind the other, so that a plurality of recesses 9 and grip grooves 7 can be milled in at the same time. The tubes 13 are connected to a single drive (not shown).

Claims (12)

1. A building block having at least two opposing faces (4, 5), in each of which is provided with a handling groove (7), which extends in the block substantially vertically to the face, wherein the handling grooves are located a short distance below the top surface (6) of the block and a recess (9) which is less deep than the handling groove and extends to the upper surface is provided in each face in the vicinity of the handling groove, characterised in that in a block of foamed concrete, in particular aerated concrete - as seen in plan - the handling groove (7) and the recesses (9) are milled and have the form of an arc of a circle.
2. A building block according to Claim 1, characterised in that the radius of the recess (9) is smaller than the radius of the handling groove (7).
3. A building block according to Claim 1 and/or 2, characterised in that the arc of a recess (9) has the same centre as the arc of the handling groove (7).
4. A building block according to one or more of Claims 1 to 3, characterised in that the handling grooves (7) are constructed to be U-shaped in cross-section.
5. A building block according to one or more of Claims 1 to 4, characterised in that the handling grooves (7) extend from one side surface (2) to the other side surface (3) of the building block.
6. A process for the manufacture of a building block according to one or more of Claims 1 to 5, characterised in that the handling groove (7) and the recess (9) are milled out simultaneously into an arcuate shape when the mass of aerated concrete manufactured in the conventional way has finished curing, the mould is opened and the mass is cut up into rectangularly shaped blank blocks.
7. A process according to Claim 6, characterised in that when a milling tool having a tube from the surface of which there is a radially projecting milling stirrup (15) is used to mill out the handling groove (7) and the recess (9), the tube (13) with the milling stirrup (15) is driven against the building block until the desired depth of the handling groove (7) and recess (9) is obtained, and is then withdrawn.
8. A method according to Claim 6 and/or 7, characterised in that the handling grooves (7) and recesses (9) are simultaneously milled in a number of building block blanks.
9. Apparatus for performing a process according to one or more of Claims 6 to 8, characterised in that an L-shaped milling wire stirrup (15) projects radially on the surface of the tube (13) which is driven about its longitudinal axis (14).
10. Apparatus according to Claim 9 characterised in that several milling wire stirrups (15) are located on the tube (13) one after the other in the longitudinal direction of the tube.
11. Apparatus according to Claim 10, characterised in that the milling wire stirrups (15) are arranged about the periphery in a staggered fashion.
12. Apparatus according to Claim 10 and/or 11, characterised in that several tubes (13) are arranged at a distance from each other in one plane and are connected to a single drive.
EP86105319A 1985-06-10 1986-04-17 Building block Expired - Lifetime EP0204925B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86105319T ATE59078T1 (en) 1985-06-10 1986-04-17 BRICK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3520716 1985-06-10
DE19853520716 DE3520716A1 (en) 1985-06-10 1985-06-10 WALLSTONE

Publications (3)

Publication Number Publication Date
EP0204925A2 EP0204925A2 (en) 1986-12-17
EP0204925A3 EP0204925A3 (en) 1987-08-05
EP0204925B1 true EP0204925B1 (en) 1990-12-12

Family

ID=6272863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105319A Expired - Lifetime EP0204925B1 (en) 1985-06-10 1986-04-17 Building block

Country Status (3)

Country Link
EP (1) EP0204925B1 (en)
AT (1) ATE59078T1 (en)
DE (2) DE3520716A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19532578A1 (en) * 1995-08-26 1997-02-27 Europor Massivhaus Gmbh Screw conveyor cooling e.g. pyrolysed waste residues
DE19822040C1 (en) * 1998-05-16 1999-10-14 Hebel Ag Machine for forming recesses in unhardened cement blocks

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631997A1 (en) * 1988-05-31 1989-12-01 Ziboroff Paul Method for obtaining lined insulating construction elements
DE4008582A1 (en) * 1990-03-15 1991-09-19 Wehrhahn & Co Gmbh H Brick with gripper recesses - has each recess formed by semicircular groove between cylindrical inner and outer faces
DE4132809A1 (en) * 1991-10-02 1993-04-22 Hebel Ag Device for producing grip pockets in porous concrete blocks - has movable gouging tool and gouging ring whose cover surface runs parallel to tool and is closed by cover
DE9112322U1 (en) * 1991-10-02 1993-02-04 Hebel AG, 8089 Emmering Device for producing recesses, in particular handle pockets, in aerated concrete blocks
EP0543055A1 (en) * 1991-11-22 1993-05-26 Ytong Ag Building block
DE19519760C2 (en) * 1995-05-30 1999-11-11 Greisel Baustoff Gmbh Process for producing a building block from aerated concrete
EP0769594A1 (en) 1995-10-06 1997-04-23 Hard Ag Brick
DE19603062C1 (en) * 1996-01-29 1997-01-23 Langenstein & Schemann Gmbh Method for producing lime sand stone briquette
DE19607420C1 (en) * 1996-02-28 1997-03-20 Langenstein & Schemann Gmbh Grip-groove-milling machine in brick blanks
AU726199B2 (en) * 1997-01-03 2000-11-02 Adbri Masonry Group Pty Ltd A masonry block and method of manufacturing same
DE102017107090A1 (en) 2017-04-03 2018-10-04 Mobile Security Buildings GmbH Brick for the production of masonry

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH104263A (en) * 1923-05-04 1924-04-01 Levi Eduard Building block.
SE307097B (en) * 1966-11-04 1968-12-16 Ytong Ab
DE2112048A1 (en) * 1971-03-12 1972-09-14 Ytong Ag Process for milling an aerated concrete component with a self-supporting, still semi-plastic consistency or structure
DE7317165U (en) * 1973-05-08 1973-08-30 Lebherz M Building block, in particular hollow building block, with handle pockets
DE2529337B2 (en) * 1975-07-01 1978-10-12 Ytong Ag, 8000 Muenchen Brick and method of its manufacture
SE412341C (en) * 1978-05-30 1989-04-17 Yxhult Ab PROFILING DEVICE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19532578A1 (en) * 1995-08-26 1997-02-27 Europor Massivhaus Gmbh Screw conveyor cooling e.g. pyrolysed waste residues
DE19532578C2 (en) * 1995-08-26 1999-02-04 Europor Massivhaus Gmbh Building block made of aerated concrete
DE19822040C1 (en) * 1998-05-16 1999-10-14 Hebel Ag Machine for forming recesses in unhardened cement blocks

Also Published As

Publication number Publication date
DE3676117D1 (en) 1991-01-24
EP0204925A2 (en) 1986-12-17
ATE59078T1 (en) 1990-12-15
DE3520716C2 (en) 1990-02-01
EP0204925A3 (en) 1987-08-05
DE3520716A1 (en) 1986-12-11

Similar Documents

Publication Publication Date Title
EP0204925B1 (en) Building block
DE69423563T2 (en) Method of making embankment stones from concrete for a retaining wall
DE102014019532B9 (en) Cutting method and cutting system for the transverse and longitudinal cutting of cutting-resistant lightweight concrete cake, in particular pore or foam concrete cake, and method and apparatus for producing lightweight concrete moldings, in particular pore or Schaumbetonformkörpern
EP0046272B1 (en) Method of manufacturing machine parts, e.g. machine tool columns
EP1605101B1 (en) Process and apparatus for the fabrication of a multilayered concrete plate
DE102006034302B4 (en) Method and device for producing stone moldings for masonry blocks, in particular sand-lime bricks
DE19822040C1 (en) Machine for forming recesses in unhardened cement blocks
DE2529337A1 (en) Cellular concrete blocks of high dimensional tolerance - have tongued and grooved faces for quick erection without mortar
DE2811547C3 (en) Form for the simultaneous production of several hollow blocks from concrete
DE3009184A1 (en) MACHINE AND METHOD FOR PRODUCING FOUNDRY CORES
EP0960989B1 (en) Building block and method of making a building block of concrete
EP0543055A1 (en) Building block
DE2203824A1 (en) FORMWORK BLOCK
DE8536832U1 (en) Device for producing a brick
DE441046C (en) Process for the production of concrete objects by knocking the mold during filling and up to the exact filling of the mold space
DE1922310A1 (en) Plastic reinforced section honeycomb
DE2251490B1 (en) Composite sand mould - has base into which stacked sub moulds are placed
DE8516881U1 (en) brick
DE19519760C2 (en) Process for producing a building block from aerated concrete
EP1020584A2 (en) Building block
DE2741245C3 (en) Device for the production of pipes made of concrete or the like provided with a bevel and a socket
DE102005046073B3 (en) Production process for sand-lime bricks involves filling die mold cavity and using press punches to produce raw brick, die mold cavity being of non-rectangular section
DE1584723C3 (en) Device for the production of longitudinally tapering ridge tiles from concrete
DE194432C (en)
DE2218314C3 (en) Device for producing a kit from large space-forming components made of concrete or the like

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19861203

ITCL It: translation for ep claims filed

Representative=s name: ING. A. GIAMBROCONO & C. S.R.L.

EL Fr: translation of claims filed
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 19890614

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 59078

Country of ref document: AT

Date of ref document: 19901215

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3676117

Country of ref document: DE

Date of ref document: 19910124

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITTA It: last paid annual fee
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HANSA BAUSTOFFWERKE GMBH & CO., KOMMANDITGESELLSCH

Effective date: 19910912

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19940828

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000410

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000629

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010516

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010516

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010417

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20050426

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20050427

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050429

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050620

Year of fee payment: 20

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO