EP1349717B1 - Method for producing purpose-made blocks, a device therefor and a purpose-made block - Google Patents
Method for producing purpose-made blocks, a device therefor and a purpose-made block Download PDFInfo
- Publication number
- EP1349717B1 EP1349717B1 EP01990579A EP01990579A EP1349717B1 EP 1349717 B1 EP1349717 B1 EP 1349717B1 EP 01990579 A EP01990579 A EP 01990579A EP 01990579 A EP01990579 A EP 01990579A EP 1349717 B1 EP1349717 B1 EP 1349717B1
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- EP
- European Patent Office
- Prior art keywords
- moulded
- blocks
- block row
- moulded block
- row
- 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
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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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0018—Separating articles from each other
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- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
- B28B7/0085—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces with surfaces for moulding chamfers
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- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
Definitions
- the invention relates to a method for producing shaped bricks according to the preamble of claim 1. Furthermore, the invention relates to a device, in particular form for the production of molded bricks according to the preamble of claim 8 and a series of blocks according to the preamble of claim 12.
- the invention relates in particular to the production of so-called Florwandsteinen.
- Several conglomerates are produced contiguously in a mold and separated from each other after removal from the mold in the area of predetermined breaking points. The separation of the stones is usually done by hand with suitable tools.
- side surfaces of the shaped bricks have a fractured surface which forms a visible surface after the laying of the shaped bricks.
- a disadvantage of known methods is the high time and effort required to separate the blocks.
- From DE-A-2 608 871 disc units are known for the manufacture of soil covers, which have cross-sectional reductions as predetermined breaking points.
- predetermined breaking points By means of the predetermined breaking points several paving stones are connected to form a detachable plate unit consisting of several paving stones.
- the invention is based on the object of further developing processes for the production of individual shaped bricks from a series of blocks of stone.
- the object of the invention is furthermore to provide a suitable mold for producing such shaped blocks.
- a further object of the invention is the further development of known rows of molded blocks from which the shaped blocks can be singled in a simple manner.
- the measures of claim 1 it is surprisingly easy to separate the individual blocks of a block of stone form each other. Due to the lateral pressure of the block of stone form corresponding forces are exposed, which lead to the breaking of the series of blocks in the predetermined breaking points and thus to the separation of the stones.
- the imaginary axes and in particular the side surfaces of the shaped bricks have different directions in the longitudinal direction of the respective series of shaped bricks, in particular such that they have an approximately zigzag course.
- the longitudinal axes of adjacent shaped blocks can run obliquely or angled to one another.
- the series of blocks is subjected to tensile forces with comparatively low pressure, which lead to the separation of the blocks from each other, namely in the region of the predetermined breaking points.
- some shaped blocks have parallel axes to each other and some blocks have obliquely directed axes.
- a plurality of rows of form blocks for separating the predetermined breaking points are arranged such that the rows of shaped blocks abut one another only in certain areas, in particular in the area of predetermined breaking points, and that the respective outer rows of shaped blocks are moved towards each other. Due to the lateral pressure on the rows of molded blocks, they are pressed against each other. Preferably, for this purpose, the respective outer rows of shaped stones are moved towards each other.
- a device according to claim 8 is used for the solution of the above-mentioned object.
- This device is preferably suitable for use in the method according to the invention.
- the molded blocks or molded block rows produced in this apparatus can be easily and reliably separated from one another mechanically, in particular mechanically, after production according to the method according to the invention.
- a suitable for solving the above-mentioned task form stone series has the features of claim 12.
- Such rows of shaped blocks can be separated particularly easily in the above-described method according to the invention for the formation of individual shaped bricks.
- Each row of blocks preferably has at least two shaped blocks.
- At least one free end of a series of shaped blocks, shaped bricks with a shorter length, in particular endstones are arranged. Also, the endstones are connected in the region of a predetermined breaking point with an adjacent shaped block, so that when separating the series of shaped blocks each shaped block (with the exception of the endstones) has two visible surfaces with a broken structure.
- FIG. 1 to 4 relates to the production of so-called pile walls.
- pile walls Such stones are used for example for the production of partially landscaped retaining walls or the like. Since the bricks are not limited to use in connection with pile walls, the general term shaped brick 10 will be used hereinafter to represent other types of bricks.
- the molded block 10 shown consists of a substantially rectangular in plan view of the base body 11 with upright side surfaces 12, 13, 14, 15 and horizontally directed top 16 and bottom 17.
- two trapezoidal projections 18 are arranged in plan view.
- the opposite side surface 15 has four in the plan also trapezoidal, corresponding recesses 19.
- the projections 18 and recesses 19 for horizontal and / or vertical toothing of the blocks 10 serve each other.
- the stones 10 are produced in a device with substantially known parts according to FIG. 4.
- an upwardly and downwardly open mold frame 20 of a mold 37 rests on a base board 21.
- the mold frame 20 has a plurality of mold cavities 22 which are bounded by upright mold walls 23 of the mold frame 20 become.
- In the mold cavity 22 is filled from above concrete and this compacted by shaking.
- the base board 21 rest on a vibrating table 24.
- a punch 25 is lowered from above into the mold cavity 22.
- An underside of the punch 25 is also profiled to form constrictions 29 in the top 16 of the blocks 10.
- a draw plate 26 is arranged between the form frame 20 and the base board 21.
- the drawing plate 26 has on its upper side upwardly projecting webs 27. To form the constrictions 29, the drawing plate is pulled away laterally under the mold frame 20, wherein the webs 27 form the constrictions 29.
- a special feature of the apparatus shown in Fig. 4 is the arrangement of the mold cavities 22 in the mold frame 20.
- the mold cavities 22 are arranged in a row in the mold frame 20.
- adjacent mold cavities 22 are each connected to one another in the region of the side surfaces 12, 14, so that a plurality of molded bricks 10, each in a row, are manufactured as a row of molded bricks 28 in a coherent manner.
- Fig. 1 shows three manufactured in such a form adjacent form stone rows in plan view.
- the mold cavities 22 are furthermore designed in such a way that the rows of molded blocks 28 have constrictions 29 in the transition from the side surfaces 13, 15 to the side surfaces 12, 14 of adjacent molded blocks. Further constrictions 29 are arranged between the upper sides 16 and lower sides 17 of adjacent molded blocks 10.
- predetermined breaking points 30 are formed between the adjacent shaped blocks 10 of a series of shaped blocks 28.
- the predetermined breaking points 30 each extend between two constrictions 29 which lie opposite one another on the side surfaces 13, 15 or upper side 16 and lower side 17.
- the constrictions 29 between the upper sides 16 and lower sides 17 of adjacent molded blocks 10 are formed on the one hand by a corresponding profiling of the punch 25 and on the other hand by the webs 27 on the draw plate 26 (FIG. 4).
- the constrictions 29 can have a triangular or notch-like cross section, as shown.
- the constrictions 29 are therefore preferably arranged circumferentially around the cross-sectional area of the shaped bricks 10.
- An essential feature of the invention is that the mold cavities 22 and the shaped bricks 10 of a series of shaped bricks 28 are arranged in different relative position to each other.
- Each shaped block 10 has an imaginary axis 31 in the longitudinal direction of the molded block row 28.
- the axis 31 extends in plan parallel to the opposite side surfaces 13, 15 in the center of the blocks 10. In antiparallel side surfaces 13, 15 the axis 31 extends in plan as bisecting line between the two side surfaces 13, 15.
- the mold cavities 22 and the shaped bricks 10 of a series of shaped bricks 28 are aligned such that their axis 31 deviates from the longitudinal direction of the row of blocks 28.
- Fig. 3 shows schematically a portion of a series of blocks 28 on an enlarged scale.
- the axes 31 of the shaped blocks 10 and correspondingly the side surfaces 13, 15 extend obliquely to the longitudinal direction of the block of molded blocks 28, which is indicated by the longitudinal axis 32.
- the side surfaces 13, 15 of the shaped blocks 10 of a series of shaped blocks 28 have a non-uniform course in the longitudinal direction of the series of shaped blocks 28.
- the angle 33 between the axes 31 of adjacent molded blocks 10 may be for example between 179 ° and 140 °, in particular between a 179 ° and 170 °. In the illustrated embodiment, the angle 33 is approximately 177 °.
- the axes 31 of adjacent molded blocks 10 within a series of molded blocks 28 run anti-parallel.
- each second block 10 of a series of blocks runs at the same angle 33 in the same direction, so that the row of blocks 28 in the region of the side surfaces 13, 15 of the blocks 10 has an approximately zigzag course or contour.
- the blocks 10 are not exactly rectangular in plan, but approximately parallelogram.
- a plurality of rows of molded blocks 28 are manufactured in a single operation in one mold frame 20.
- the arrangement of the mold cavities 22 of a row of molded blocks 28 is different from the arrangement of the mold cavities 22 of an adjacent row of mold blocks 28, so that the rows of molded blocks have an at least partially divergent course in the region of the side surfaces 13, 15 in the longitudinal direction thereof.
- FIG. 2 shows a cutout 38 according to FIG. 1 of three juxtaposed rows of molded blocks 28 with a deviation from one another.
- the side surfaces 13 of a molded block 10 extend to adjacent side surfaces 15th a further molded block 10 at an angle 34 of, for example, 1.4 °, so that these side surfaces 13, 15 have a maximum distance 35 of 5.5 mm.
- FIG. 1 shows a cutout 38 according to FIG. 1 of three juxtaposed rows of molded blocks 28 with a deviation from one another.
- the side surfaces 13 of a molded block 10 extend to adjacent side surfaces 15th a further molded block 10 at an angle 34 of,
- the rows of molded blocks 28 are designed and arranged in such a way that they have a respective opposite course to the adjacent row of shaped blocks 28.
- the stone blocks 28 are removed from the base board 21.
- a special feature consists in the fact that the rows of molded blocks 28 are detected along the outer side surfaces 13, 15 of the outer rows of molded blocks 28, for example by mechanical gripping members. Upon detection, the rows of molded blocks 28 are pressed against one another laterally-transversely to the longitudinal direction of the rows of molded blocks 28-which only partly abut each other due to the different course in the longitudinal direction.
- the rows of molded blocks 28 are designed such that they abut each other only in the region of some predetermined breaking points 30, in particular in the region of every second predetermined breaking point 30, as in the embodiment shown.
- the rows of molded blocks 28 are thus subjected to bending transversely to the longitudinal direction thereof.
- the rows of molded blocks 29 break in the region of the predetermined breaking points 30, so that the shaped blocks 10 of the molded blocks 28 are separated from one another.
- the conglomerates 10 can be arranged in the subsequent installation such that the side surfaces 12, 14 are positioned in the region of a visible surface, for example, a wall or soil cover.
- the number of in one operation in a mold frame 20 producible molded blocks 10 is limited essentially only by the dimensions of known devices for producing molded blocks 10.
- the length of a series of shaped blocks 28 is about 1.10 m.
- a series of blocks 28 includes each four blocks 10, as well as two end blocks 36.
- the end blocks 36 are each arranged at a free end of the block of stone 28 and have a shorter length than the blocks 10, for example 80 mm.
- the two outer shaped blocks 10 of a series of shaped blocks 28 also have a broken surface in the area of both side surfaces 12, 14 after separation. Insofar as the formation of the broken surface is not important, the endstones 36 can also be dispensed with.
- a series of shaped blocks 28 may also consist of only two shaped blocks 10, in which case also the end blocks 36 are dispensed with, so that two shaped blocks 10 each having a single broken visible surface can be obtained from a series of shaped blocks 28.
- a plurality of rows of molded blocks 28 can be produced in one operation in a mold frame 20, wherein the rows of molded blocks 28 in the region of the side surfaces 13, 15 have a different course in the longitudinal direction thereof, so that they abut each other only partially in the separation of the predetermined breaking points 30 ,
- the separation of the conglomerates 10 can be carried out as described above directly after demoulding.
- To separate the blocks 10 but also several rows of form stone 28 can be placed next to each other after demoulding, for example, at the processing site, ie the site. It is conceivable that different shaped mold frames 20 are used so that the rows of molded blocks 28 have a different course.
- the rows of molded blocks 28 are made in identical mold frame 20 and that the rows of molded stone 28 are laid alternately with top 16 and bottom 17 facing up side by side, or that the rows of molded blocks 28 rotated by 180 ° to each other Relative position are arranged. It is furthermore conceivable that the rows of molded blocks 28 are laid side by side, each with the upper side 16 pointing upwards, wherein, however, the rows of molded blocks 28 are arranged laterally offset from each other. In this way, it is ensured that the form stone rows 28 for separating the predetermined breaking points 30 between the shaped bricks 10 abut each other only in regions in the region of the side surfaces 13, 15.
- the axes 31 of the shaped blocks 10 extend parallel to the longitudinal axis 32 and at a distance therefrom.
- the axes 31 of adjacent shaped blocks 10 of the respective row of shaped blocks 28 each have a different distance from the longitudinal axis 32, preferably lying on another side of the longitudinal axis 32.
- axes 31 of some blocks 10 a series of blocks 28 parallel to the longitudinal axis 32nd are aligned and some axes 31 of other blocks 10 of a series of blocks 28 oblique to the longitudinal axis 32 directed.
- shaped blocks 10 of this series of shaped blocks 28 are separated by pressure on opposite sides of the individual rows of shaped blocks 28. This can also be done on site at the construction site.
- molded bricks 10 are, as mentioned above, not limited to use in connection with the production of pile wall bricks.
- shaped blocks 10 can be produced in this way for any other purpose.
- the described arrangement and alignment of the mold cavities 22 can also be used independently of the ground plan shape of the molded bricks 10.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Revetment (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen von Formsteinen gemäß dem Oberbegriff des Anspruchs 1. Weiterhin betrifft die Erfindung eine Vorrichtung, insbesondere Form zur Herstellung von Formsteinen gemäß dem Oberbegriff des Anspruchs 8 sowie eine Formsteinreihe gemäß dem Oberbegriff des Anspruchs 12.The invention relates to a method for producing shaped bricks according to the preamble of claim 1. Furthermore, the invention relates to a device, in particular form for the production of molded bricks according to the preamble of claim 8 and a series of blocks according to the preamble of
Die Erfindung bezieht sich insbesondere auf die Herstellung von sogenannten Florwandsteinen. Dabei werden mehrere Formsteine zusammenhängend in einer Form hergestellt und nach dem Entformen im Bereich von Sollbruchstellen voneinander getrennt. Das Trennen der Formsteine erfolgt dabei in der Regel von Hand mit geeigneten Werkzeugen. Im Bereich der Sollbruchstellen weisen Seitenflächen der Formsteine eine Bruchfläche auf, die nach der Verlegung der Formsteine eine Sichtfläche bildet. Nachteilig an bekannten Verfahren ist der hohe Zeit- und Kraftaufwand der zum Trennen der Formsteine benötigt wird.The invention relates in particular to the production of so-called Florwandsteinen. Several conglomerates are produced contiguously in a mold and separated from each other after removal from the mold in the area of predetermined breaking points. The separation of the stones is usually done by hand with suitable tools. In the area of the predetermined breaking points, side surfaces of the shaped bricks have a fractured surface which forms a visible surface after the laying of the shaped bricks. A disadvantage of known methods is the high time and effort required to separate the blocks.
Aus der DE-A-2 608 871 sind Platteneinheiten zum Herstellen von Erdreichabdeckungen bekannt, die Querschnittsminderungen als Sollbruchstellen aufweisen. Mittels der Sollbruchstellen werden mehrere Pflastersteine zu einer lösbaren Platteneinheit aus mehreren Pflastersteinen verbunden.From DE-A-2 608 871 disc units are known for the manufacture of soil covers, which have cross-sectional reductions as predetermined breaking points. By means of the predetermined breaking points several paving stones are connected to form a detachable plate unit consisting of several paving stones.
Der Erfindung die Aufgabe zu Grunde bekannte Verfahren zur Herstellung von einzelnen Formsteinen aus einer Formsteinreihe weiterzuentwickeln. Aufgabe der Erfindung ist es weiterhin eine geeignete Form zur Herstellung derartiger Formsteine zur Verfügung zu stellen. Eine weitere Aufgabe der Erfindung besteht in der Weiterentwicklung bekannter Formsteinreihen, aus denen sich die Formsteine auf einfache Weise vereinzeln lassen.The invention is based on the object of further developing processes for the production of individual shaped bricks from a series of blocks of stone. The object of the invention is furthermore to provide a suitable mold for producing such shaped blocks. A further object of the invention is the further development of known rows of molded blocks from which the shaped blocks can be singled in a simple manner.
Zur Lösung der eingangs genannten Aufgabe weist das erfindungsgemäße Verfahren die Maßnahmen des Anspruchs 1 auf. Durch diese Maßnahmen ist es überraschend einfach möglich die einzelnen Formsteine einer Formsteinreihe voneinander zu trennen. Durch den seitlichen Druck wird die Formsteinreihe entsprechenden Kräften ausgesetzt, die zum Zerbrechen der Formsteinreihe im Bereich der Sollbruchstellen und somit zur Trennung der Formsteine führen.To solve the problem mentioned above, the inventive method, the measures of claim 1. By these measures, it is surprisingly easy to separate the individual blocks of a block of stone form each other. Due to the lateral pressure of the block of stone form corresponding forces are exposed, which lead to the breaking of the series of blocks in the predetermined breaking points and thus to the separation of the stones.
In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens weisen die gedachten Achsen und insbesondere die Seitenflächen der Formsteine in Längsrichtung der jeweiligen Formsteinreihe voneinander abweichende Richtungen auf, insbesondere derart, dass diese einen etwa zickzackförmigen Verlauf aufweisen. Beispielsweise können die Längsachsen benachbarter Formsteine schräg bzw. abgewinkelt zueinander verlaufen. Auf diese Weise wird die Formsteinreihe mit vergleichsweise geringem Druck Zugkräften ausgesetzt, die zur Trennung der Formsteine voneinander führen, nämlich im Bereich der Sollbruchstellen. Denkbar ist weiterhin, dass innerhalb einer Formsteinreihe einige Formsteine zueinander parallele Achsen aufweisen und einige Formsteine schräg gerichtete Achsen aufweisen.In a preferred embodiment of the method according to the invention, the imaginary axes and in particular the side surfaces of the shaped bricks have different directions in the longitudinal direction of the respective series of shaped bricks, in particular such that they have an approximately zigzag course. For example, the longitudinal axes of adjacent shaped blocks can run obliquely or angled to one another. In this way, the series of blocks is subjected to tensile forces with comparatively low pressure, which lead to the separation of the blocks from each other, namely in the region of the predetermined breaking points. It is also conceivable that within a series of blocks some shaped blocks have parallel axes to each other and some blocks have obliquely directed axes.
Gemäß einer Weiterentwicklung des erfindungsgemäßen Verfahrens werden mehrere Formsteinreihen zum Trennen der Sollbruchstellen derart angeordnet, dass die Formsteinreihen lediglich bereichsweise aneinander anliegen, insbesondere im Bereich von Sollbruchstellen, und dass die jeweils äußeren Formsteinreihen aufeinander zu bewegt werden. Durch den seitlichen Druck auf die Formsteinreihen werden diese gegeneinander gedrückt. Vorzugsweise werden hierzu die jeweils äußeren Formsteinreihen aufeinander zu bewegt.According to a further development of the method according to the invention, a plurality of rows of form blocks for separating the predetermined breaking points are arranged such that the rows of shaped blocks abut one another only in certain areas, in particular in the area of predetermined breaking points, and that the respective outer rows of shaped blocks are moved towards each other. Due to the lateral pressure on the rows of molded blocks, they are pressed against each other. Preferably, for this purpose, the respective outer rows of shaped stones are moved towards each other.
Weiterhin dient zur Lösung der eingangs genannten Aufgabe eine Vorrichtung gemäß dem Anspruch 8. Diese Vorrichtung ist bevorzugt zum Einsatz im erfindungsgemäßen Verfahren geeignet. Die in dieser Vorrichtung hergestellten Formsteine beziehungsweise Formsteinreihen können nach der Fertigung gemäß dem erfindungsgemäßen Verfahren leicht und zuverlässig insbesondere maschinell voneinander getrennt werden.Furthermore, a device according to claim 8 is used for the solution of the above-mentioned object. This device is preferably suitable for use in the method according to the invention. The molded blocks or molded block rows produced in this apparatus can be easily and reliably separated from one another mechanically, in particular mechanically, after production according to the method according to the invention.
Eine zur Lösung der eingangs genannten Aufgabe geeignete Formsteinreihe weist die Merkmale des Anspruchs 12 auf. Solche Formsteinreihen lassen sich im vorstehend beschriebenen erfindungsgemäßen Verfahren zur Bildung von einzelnen Formsteinen besonders einfach trennen. Jede Formsteinreihe weist vorzugsweise wenigstens zwei Formsteine auf.A suitable for solving the above-mentioned task form stone series has the features of
Gemäß einer Weiterbildung der Erfindung sind an mindestens einem freien Ende einer Formsteinreihe Formsteine mit geringerer Länge, insbesondere Endsteine, angeordnet. Auch die Endsteine sind im Bereich einer Sollbruchstelle mit einem benachbarten Formstein verbunden, sodass beim Trennen der Formsteinreihe jeder Formstein (mit Ausnahme der Endsteine) zwei Sichtflächen mit einer gebrochenen Struktur aufweist.According to one embodiment of the invention, at least one free end of a series of shaped blocks, shaped bricks with a shorter length, in particular endstones, are arranged. Also, the endstones are connected in the region of a predetermined breaking point with an adjacent shaped block, so that when separating the series of shaped blocks each shaped block (with the exception of the endstones) has two visible surfaces with a broken structure.
Weitere Einzelheiten der Erfindung werden nachfolgend anhand eines in der Zeichnung dargestellten, bevorzugten Ausführungsbeispiels der Erfindung näher erläutert. In dieser zeigen:
- Fig. 1:
- eine Draufsicht auf mehrere Formsteinreihen,
- Fig. 2:
- eine vergrößerte Darstellung eines Teilbereichs der Fig. 1,
- Fig.3:
- eine schematische Darstellung einer Formsteinreihe in vergrößerte Maßstab und
- Fig. 4:
- eine schematische Darstellung einer Vorrichtung zur Fertigung von Formsteinen im Vertikalschnitt.
- Fig. 1:
- a plan view of several rows of form stone,
- Fig. 2:
- an enlarged view of a portion of Fig. 1,
- Figure 3:
- a schematic representation of a series of blocks on an enlarged scale and
- 4:
- a schematic representation of a device for manufacturing molded blocks in vertical section.
Das in den Figuren 1 bis 4 dargestellte Ausführungsbeispiel betrifft die Herstellung von so genannten Florwandsteinen. Derartige Steine werden beispielsweise zur Herstellung von teilweise begrünten Stützmauern oder dergleichen verwendet. Da die Steine nicht ausschließlich auf die Verwendung im Zusammenhang mit Florwänden eingeschränkt sind, wird im folgenden stellvertretend für andere Arten von Steinen der allgemeine Begriff Formstein 10 verwendet.The embodiment shown in Figures 1 to 4 relates to the production of so-called pile walls. Such stones are used for example for the production of partially landscaped retaining walls or the like. Since the bricks are not limited to use in connection with pile walls, the general term shaped
Im vorliegenden Ausführungsbeispiel besteht der gezeigte Formstein 10 aus einem im Grundriss im Wesentlichen rechteckigen Grundkörper 11 mit aufrechten Seitenflächen 12, 13, 14, 15 und horizontal gerichteter Oberseite 16 und Unterseite 17. Im Bereich der Seitenfläche 13 sind zwei im Grundriss trapezförmige Vorsprünge 18 angeordnet. Die gegenüberliegende Seitenfläche 15 weist vier im Grundriss ebenfalls trapezförmige, korrespondierende Rücksprünge 19 auf. Innerhalb einer verlegten Erdreichabdeckung oder Stützmauer dienen die Vorsprünge 18 und Rücksprünge 19 zur horizontalen und/oder vertikalen Verzahnung der Formsteine 10 untereinander. Dabei treten die Vorsprünge 18 eines Formsteins 10 in Rücksprünge 19 eines benachbarten Formsteins 10.In the present embodiment, the molded
Die Formsteine 10 werden in einer Vorrichtung mit im Wesentlichen bekannten Teilen gemäß Fig. 4 hergestellt. Dabei ruht ein nach oben und unten offener Formrahmen 20 einer Form 37 auf einem Unterlagsbrett 21. Der Formrahmen 20 weist mehrere Formnester 22 auf, die durch aufrechte Formwände 23 des Formrahmens 20 begrenzt werden. In die Formnester 22 wird von oben Beton eingefüllt und dieser durch Rütteln verdichtet. Hierzu kann wie im gezeigten Ausführungsbeispiel das Unterlagsbrett 21 auf einem Rütteltisch 24 ruhen. Zur Begrenzung der Oberseite 16 der Formsteine 10 wird von oben in die Formnester 22 ein Stempel 25 abgesenkt. Eine Unterseite des Stempels 25 ist zur Ausbildung von Einschnürungen 29 im Bereich der Oberseite 16 der Formsteine 10 zudem profiliert. Um Einschnürungen 29 im Bereich der Unterseite 17 der Formsteine 10 auszubilden ist zwischen Formrahmen 20 und Unterlagsbrett 21 ein Ziehblech 26 angeordnet. Das Ziehblech 26 weist an seiner Oberseite nach oben vorstehende Stege 27 auf. Zur Ausbildung der Einschnürungen 29 wird das Ziehblech seitlich unter dem Formrahmen 20 weggezogen, wobei die Stege 27 die Einschnürungen 29 formen.The
Eine Besonderheit der in Fig. 4 gezeigten Vorrichtung besteht in der Anordnung der Formnester 22 im Formrahmen 20. Die Formnester 22 sind in einer Reihe im Formrahmen 20 angeordnet. Dabei sind benachbarte Formnester 22 jeweils im Bereich der Seitenflächen 12, 14 miteinander verbunden, so dass mehrere Formsteine 10 jeweils einer Reihe zusammenhängend als Formsteinreihe 28 gefertigt werden. Fig. 1 zeigt drei in einer derartigen Form gefertigte nebeneinanderliegende Formsteinreihen im Grundriss. Die Formnester 22 sind weiterhin derart ausgebildet, dass die Formsteinreihen 28 im Übergang von den Seitenflächen 13, 15 zu den Seitenflächen 12, 14 benachbarter Formsteine 10 Einschnürungen 29 aufweisen. Weitere Einschnürungen 29 sind zwischen den Oberseiten 16 und Unterseiten 17 benachbarter Formsteine 10 angeordnet. Durch die Einschnürungen 29 wird die Querschnittsfläche der Formsteinreihe 28 verringert und somit Sollbruchbruchstellen 30 zwischen den benachbarten Formsteinen 10 einer Formsteinreihe 28 gebildet. Die Sollbruchstellen 30 verlaufen jeweils zwischen zwei Einschnürungen 29 die sich an den Seitenflächen 13, 15 bzw. Oberseite 16 und Unterseite 17 gegenüberliegen. Die Einschnürungen 29 zwischen den Oberseiten 16 und Unterseiten 17 benachbarter Formsteine 10 werden einerseits durch eine entsprechende Profilierung des Stempels 25 und andererseits durch die Stege 27 am Ziehblech 26 geformt (Fig. 4). Die Einschnürungen 29 können dabei wie gezeigt einen dreieckigen bzw. kerbenartigen Querschnitt aufweisen. Bevorzugt sind die Einschnürungen 29 demnach umlaufend um die Querschnittsfläche der Formsteine 10 angeordnet.A special feature of the apparatus shown in Fig. 4 is the arrangement of the
Eine wesentliche Besonderheit der Erfindung besteht darin, dass die Formnester 22 bzw. die Formsteine 10 einer Formsteinreihe 28 in unterschiedlicher Relativposition zueinander angeordnet sind. Jeder Formstein 10 verfügt über eine gedachte Achse 31 in Längsrichtung der Formsteinreihe 28. Die Achse 31 verläuft im Grundriss parallel zu den gegenüberliegenden Seitenflächen 13, 15 in der Mitte der Formsteine 10. Bei antiparallelen Seitenflächen 13, 15 verläuft die Achse 31 im Grundriss als Winkelhalbierende zwischen den beiden Seiteflächen 13, 15. Die Formnester 22 bzw. die Formsteine 10 einer Formsteinreihe 28 sind derart ausgerichtet, dass deren Achse 31 abweichend zur Längsrichtung der Formsteinreihe 28 verläuft. Zur Verdeutlichung zeigt Fig. 3 schematisch einen Teil einer Formsteinreihe 28 in vergrößertem Maßstab. Die Achsen 31 der Formsteine 10 und entsprechend die Seitenflächen 13, 15 verlaufen dabei schräg zur Längsrichtung der Formsteinreihe 28, die durch die Längsachse 32 angedeutet ist. Dadurch weisen die Seitenflächen 13, 15 der Formsteine 10 einer Formsteinreihe 28 einen ungleichförmigen Verlauf in Längsrichtung der Formsteinreihe 28 auf. Der Winkel 33 zwischen den Achsen 31 benachbarter Formsteine 10 kann beispielsweise zwischen 179° und 140° betragen, insbesondere zwischen einer 179° und 170°. Im gezeigten Ausführungsbeispiel beträgt der Winkel 33 in etwa 177°. Die Achsen 31 benachbarter Formsteine 10 innerhalb einer Formsteinreihe 28 verlaufen dabei antiparallel. Die Achse 31 jedes zweiten Formsteins 10 einer Formsteinreihe verläuft unter dem gleichen Winkel 33 in die gleiche Richtung, sodass die Formsteinreihe 28 im Bereich der Seitenflächen 13, 15 der Formsteine 10 einen etwa zickzackförmigen Verlauf bzw. Kontur aufweist. Die Formsteine 10 sind dabei im Grundriss nicht genau rechteckig, sondern etwa parallelogrammförmig.An essential feature of the invention is that the
Vorzugsweise werden in einem Formrahmen 20 mehrere Formsteinreihen 28 in einem Arbeitsgang gefertigt. Die Anordnung der Formnester 22 einer Formsteinreihe 28 ist dabei abweichend von der Anordnung der Formnester 22 einer benachbarten Formsteinreihe 28, sodass die Formsteinreihen einen mindestens teilweise voneinander abweichenden Verlauf im Bereich der Seitenflächen 13, 15 in Längsrichtung derselben aufweisen. Fig. 2 zeigt einen Ausschnitt 38 gemäß Fig. 1 von drei nebeneinander liegenden Formsteinreihen 28 mit voneinander abweichendem Verlauf. Die Seitenflächen 13 eines Formsteins 10 verlaufen dabei zu benachbarten Seitenflächen 15 eines weiteren Formsteins 10 unter einem Winkel 34 von beispielsweise 1,4°, sodass diese Seitenflächen 13, 15 einen maximalen Abstand 35 von 5,5 mm aufweisen. Wie in Fig. 1 ersichtlich sind die Formsteinreihen 28 derart ausgebildet und angeordnet, dass diese einen jeweils gegenläufigen Verlauf zur benachbarten Formsteinreihe 28 aufweisen. Nach dem Einfüllen und Verdichten des Betons in die Formnester 22 wird der Formrahmen 20 sofort nach oben von den Formsteinreihen 28 abgezogen, sodass diese frei auf dem Unterlagsbrett 21 liegen, wie in Fig. 1 bzw. Fig. 3 dargestellt. Das Abziehen des Formrahmens 20 kann alternativ auch nach mindestens teilweisem Abbinden des Betons erfolgen.Preferably, a plurality of rows of molded
Nach eventuellem weiteren Abbinden des Betons werden die Formsteinreihen 28 vom Unterlagsbrett 21 abgenommen. Eine Besonderheit besteht dabei darin, dass die Formsteinreihen 28 längs der außenliegenden Seitenflächen 13, 15 der äußeren Formsteinreihen 28 erfasst werden, beispielsweise durch mechanische Greiforgane. Beim Erfassen werden die Formsteinreihen 28 seitlich - quer zur Längsrichtung der Formsteinreihen 28 - gegeneinander gedrückt, wobei diese durch den unterschiedlichen Verlauf in Längsrichtung nur teilweise aneinander anliegen. Vorzugsweise sind die Formsteinreihen 28 dazu derart ausgebildet, dass diese untereinander nur im Bereich einiger Sollbruchstellen 30 aneinander anliegen, insbesondere im Bereich jeder zweiten Sollbruchstelle 30, wie im gezeigten Ausführungsbeispiel. Beim Erfassen werden die Formsteinreihen 28 somit quer zu Längsrichtung derselben auf Biegung beansprucht. Bei entsprechend hohem seitlichem Druck zerbrechen die Formsteinreihen 29 im Bereich der Sollbruchstellen 30, so dass die Formsteine 10 der Formsteinreihen 28 voneinander getrennt werden. Dabei ergibt sich im Bereich der Seitenflächen 12, 14 der Formsteine 10 eine gebrochene Oberfläche, die in etwa an einen Naturstein erinnert. Die Formsteine 10 können bei der späteren Verlegung derart angeordnet werden, dass die Seitenflächen 12, 14 im Bereich einer Sichtfläche beispielsweise einer Wand oder Erdreichabdeckung positioniert sind.After any further setting of the concrete, the stone blocks 28 are removed from the
Die Anzahl der in einem Arbeitsgang in einem Formrahmen 20 herstellbaren Formsteine 10 ist im Wesentlichen nur durch die Abmessungen bekannter Vorrichtungen zum Herstellen von Formsteinen 10 begrenzt. Im gezeigten Ausführungsbeispiel beträgt die Länge einer Formsteinreihe 28 etwa 1,10 m. Eine Formsteinreihe 28 umfasst dabei jeweils vier Formsteine 10, sowie zwei Endsteine 36. Die Endsteine 36 sind jeweils an einem freien Ende der Formsteinreihe 28 angeordnet und haben eine geringere Länge als die Formsteine 10, beispielsweise 80 mm. Durch die Anordnung der Endsteine 36 weisen auch die beiden äußeren Formsteine 10 einer Formsteinreihe 28 im Bereich beider Seitenflächen 12, 14 nach dem Trennen eine gebrochene Oberfläche auf. Insofern es auf die Ausbildung der gebrochenen Oberfläche nicht ankommt, kann auch auf die Endsteine 36 verzichtet werden. Alternativ kann eine Formsteinreihe 28 auch aus lediglich zwei Formsteinen 10 bestehen, wobei in diesem Fall auch auf die Endsteine 36 verzichtet wird, so dass aus einer Formsteinreihe 28 zwei Formsteine 10 mit jeweils einer einzigen gebrochenen Sichtfläche gewonnen werden können.The number of in one operation in a
Wie bereits vorstehend erwähnt können mehrere Formsteinreihen 28 in einem Arbeitsgang in einem Formrahmen 20 hergestellt werden, wobei die Formsteinreihen 28 im Bereich der Seitenflächen 13, 15 einen voneinander abweichenden Verlauf in Längsrichtung derselben aufweisen, so dass sie beim Trennen der Sollbruchstellen 30 nur bereichsweise aneinander anliegen. Das Trennen der Formsteine 10 kann wie vorstehend beschrieben direkt nach dem Entschalen erfolgen. Zum Trennen der Formsteine 10 können aber auch mehrere Formsteinreihen 28 nach dem Entschalen nebeneinander gelegt werden, beispielsweise am Verarbeitungsort, i.e. der Baustelle. Denkbar ist dabei, dass unterschiedliche ausgestaltete Formrahmen 20 benutzt werden, damit die Formsteinreihen 28 einen voneinander abweichenden Verlauf aufweisen. Vorzugsweise wird jedoch derart verfahren, dass die Formsteinreihen 28 in identischen Formrahmen 20 gefertigt werden und dass die Formsteinreihen 28 zum Trennen abwechselnd mit Oberseite 16 bzw. Unterseite 17 nach oben weisend nebeneinander verlegt werden, oder dass die Formsteinreihen 28 mit jeweils um 180° zueinander gedrehter Relativlage angeordnet sind. Weiterhin denkbar ist es, dass die Formsteinreihen 28 jeweils mit der Oberseite 16 nach oben weisend nebeneinander verlegt werden, wobei jedoch die Formsteinreihen 28 seitlich zueinander versetzt angeordnet werden. Auf diese Weise ist gewährleistet, dass die Formsteinreihen 28 zum Trennen der Sollbruchstellen 30 zwischen den Formsteinen 10 lediglich bereichsweise im Bereich der Seitenflächen 13, 15 aneinander anliegen.As already mentioned above, a plurality of rows of molded
Alternativ ist es auch denkbar, dass die Achsen 31 der Formsteine 10 parallel zur Längsachse 32 und in einem Abstand zu dieser verlaufen. Dabei weisen die Achsen 31 benachbarter Formsteine 10 der jeweiligen Formsteinreihe 28 jeweils einen anderen Abstand zur Längsachse 32 auf, vorzugsweise liegen sie auf einer anderen Seite der Längsachse 32. Denkbar ist auch weiterhin, dass Achsen 31 einiger Formsteine 10 einer Formsteinreihe 28 parallel zur Längsachse 32 ausgerichtet sind und einige Achsen 31 anderer Formsteine 10 einer Formsteinreihe 28 schräg zur Längsachse 32 gerichtet verlaufen.Alternatively, it is also conceivable that the
Alternativ kann auch beispielsweise lediglich eine Formsteinreihe 28 in einem Formrahmen 20 hergestellt werden. Dabei werden die Formsteine 10 dieser Formsteinreihe 28 durch Druck auf gegenüberliegende Seiten der einzelnen Formsteinreihe 28 getrennt. Dies kann auch vor Ort auf der Baustelle geschehen.Alternatively, for example, only one row of shaped
Das vorstehend beschriebene Verfahren zum Herstellen von Formsteinen 10 ist wie eingangs erwähnt nicht auf die Verwendung im Zusammenhang mit der Herstellung von Florwandsteinen beschränkt. Grundsätzlich können auf diese Weise Formsteine 10 für jeden anderen Einsatzzweck hergestellt werden. Gleiches gilt für die vorstehend beschriebene Vorrichtung bzw. Form 37. Die beschriebene Anordnung und Ausrichtung der Formnester 22 ist auch unabhängig von der Grundrissform der Formsteine 10 einsetzbar.The above-described method for producing molded
Claims (16)
- A method of producing moulded blocks (10), in which a plurality of moulded blocks (10) are produced in a mould (37) in such a way that the moulded blocks (10) are arranged in the mould (37) in at least one moulded block row (28) and respective adjacent moulded blocks (10) of a moulded block row (28) are interconnected in the region of at least one predetermined breaking point (30), the moulded blocks (10) of a moulded block row (28) being removed from the mould (37) as a continuous unit and separated from one another in the region of the predetermined breaking points (30), characterized in that adjacent moulded blocks (10) of one or of each moulded block row (28) are produced in the mould (37) in such a way that imaginary axes of the moulded blocks (10) deviate at least partially from the longitudinal axis (32) of the respective moulded block row (28) in the longitudinal direction of the respective moulded block row (28), and in that, in order to sever the predetermined breaking points (30), lateral pressure is exerted on the or each moulded block row (28).
- The method according to Claim 1, characterized in that the axes (31) and, in particular, the side walls (13, 15) of at least some moulded blocks (10) have directions which deviate from one another in the longitudinal direction of the respective moulded block row (28), in particular such that they have an approximately zigzag-shaped course.
- The method according to Claim 1 or 2, characterized in that, in order to sever the predetermined breaking points (30) between the moulded blocks (10) of the moulded block rows (28), a plurality of moulded block rows (28) are arranged next to one another in such a way that the moulded block rows (28) lie against one another only in certain regions, in particular in the region of the predetermined breaking points (30), and in that the respective outer moulded block rows (28) are moved toward one another.
- The method according to Claim 3, characterized in that the moulded block rows (28) are pressed against one another transversely with respect to the longitudinal extent of said rows.
- The method according to Claim 3 or 4, characterized in that the moulded block rows (28) are preferably arranged approximately parallel in such a way that they lie against one another in the region of at least some predetermined breaking points (30), preferably in the region of every second predetermined breaking point.
- The method according to one of the previous Claims, characterized in that a plurality of moulded block rows (28) are produced in a mould (37), the moulded block rows (28) resting on a support board (21) after the at least partial setting of said rows and being pressed laterally against one another on removal from the support board (21).
- The method according to Claim 1 or 2, characterized in that an individual moulded block row (28) is removed from the mould (37) and the predetermined breaking points (30) between the moulded blocks (10) of the moulded block row (28) are severed by means of lateral pressure on the side faces (13, 15) of the moulded blocks (10).
- A device, in particular mould (37), for the production of moulded blocks (10), comprising a mould frame (20), which rests on a support board (21) and which has, at the bottom and top, open mould cavities (22) which are delimited by mould walls (23) of the mould frame (20), a plurality of mould cavities (22) being arranged in at least one row, characterized in that adjacent mould cavities (22) of a row are connected to one another, such that the moulded blocks (10) of a row which can be produced in the mould (37) are interconnected to form a moulded block row (28), and in that the mould cavities (22) are arranged in such a way that imaginary axes (31) and, in particular, side faces (13, 15) of adjacent moulded blocks (10) run in an at least partially deviating manner from a longitudinal axis (32) of the respective moulded block row (28) in the longitudinal direction of the respective moulded block row (28).
- The device according to Claim 8, characterized in that axes (31) of adjacent moulded blocks (10) run in different directions in relation to the longitudinal axis (32) of the respective moulded block row (28).
- The device according to Claim 9, characterized in that an angle (33) between the axes (31) of adjacent moulded blocks (10) of a moulded block row (28) is between 179° and 140°, in particular between 179° and 170°, preferably about 177°.
- The device according to one of the previous Claims, characterized in that the axes (31) of every second moulded block (10) of a moulded block row (28) are aligned in concordance with one another and the axes (31) of the remaining moulded blocks (10) of the moulded block row (28) have a different course, preferably also a mutually identical course.
- A moulded block row (28) of moulded blocks (10) comprising at least four upright side walls (12, 13, 14, 15) and substantially horizontally oriented top surface (16) and bottom surface (17), the moulded block row (28) being formed from a plurality of moulded blocks (10) and with adjacent moulded blocks (10) of a moulded block row (28) being connected to one another in the region of predetermined breaking points (30), characterized in that imaginary axes (31) and, in particular, side faces (13, 15) of at least some adjacent moulded blocks (10) deviate at least partially from a longitudinal axis (32) of the respective moulded block row (28) in the longitudinal direction of the respective moulded block row (28) such that the predetermined breaking points (30) can be severed when lateral pressure is exerted on the moulded block row (28).
- The moulded block row (28) according to Claim 12, characterized in that axes (31) and, in particular, side faces (13, 15) of adjacent moulded blocks (10) run slightly oblique in relation to the longitudinal axis (32) of the respective moulded block row (28).
- The moulded block row (28) according to one of the previous Claims, characterized in that the predetermined breaking points (30) are arranged in the region of at least one exposed side of at least some moulded blocks (10).
- The moulded block row (28) according to one of the previous Claims, characterized in that each moulded block row (28) has at least two moulded blocks (10).
- The moulded block row (28) according to one of the previous Claims, characterized in that a moulded block of shorter length, in particular an end block (36), is arranged at least at one free end of a moulded block row (28).
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10065886 | 2000-12-23 | ||
DE10065886 | 2000-12-23 | ||
DE10107531A DE10107531A1 (en) | 2000-12-23 | 2001-02-17 | Molded brick producing process involves producing adjacent bricks with axes in longitudinal direction deviating from that of row |
DE10107531 | 2001-02-17 | ||
PCT/EP2001/015097 WO2002051603A2 (en) | 2000-12-23 | 2001-12-20 | Method for producing purpose-made blocks, a device therefor and a row of purpose-made blocks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1349717A2 EP1349717A2 (en) | 2003-10-08 |
EP1349717B1 true EP1349717B1 (en) | 2007-03-14 |
Family
ID=26008133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01990579A Expired - Lifetime EP1349717B1 (en) | 2000-12-23 | 2001-12-20 | Method for producing purpose-made blocks, a device therefor and a purpose-made block |
Country Status (8)
Country | Link |
---|---|
US (1) | US7048250B2 (en) |
EP (1) | EP1349717B1 (en) |
AT (1) | ATE356703T1 (en) |
CA (1) | CA2400448A1 (en) |
DE (2) | DE10107531A1 (en) |
DK (1) | DK1349717T3 (en) |
ES (1) | ES2284719T3 (en) |
WO (1) | WO2002051603A2 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6630910B2 (en) | 2001-10-29 | 2003-10-07 | Marconi Communications Inc. | Wave antenna wireless communication device and method |
USD501935S1 (en) * | 2003-07-21 | 2005-02-15 | Keystone Retaining Wall Systems, Inc. | Wall block |
DE102004056355A1 (en) * | 2004-09-09 | 2006-04-13 | Rampf Formen Gmbh | Molding device for molded concrete bodies has a pulling unit in several parts including pulling sheet and at least one pulling batten fixed to sheet |
US7484708B1 (en) * | 2005-11-15 | 2009-02-03 | Jessee Allen W | Mold assembly for the production of concrete blocks |
USD600821S1 (en) * | 2007-05-21 | 2009-09-22 | A. Geldenhuys | Construction block |
JP5468747B2 (en) | 2007-06-05 | 2014-04-09 | レスメド・モーター・テクノロジーズ・インコーポレーテッド | Blower with bearing tube |
CN101848797A (en) | 2007-11-08 | 2010-09-29 | 吉斯通护岸系统股份有限公司 | Wall block with weight bearing pads and method of producing wall blocks |
US8888481B2 (en) | 2011-01-10 | 2014-11-18 | Stable Concrete Structures, Inc. | Machine for manufacturing concrete U-wall type construction blocks by molding each concrete U-wall construction block from concrete poured about a block cage made from reinforcing material while said block cage is loaded within said machine |
CA2782659C (en) * | 2012-06-26 | 2019-01-08 | Brampton Brick Limited | Retaining wall block and system |
US9644334B2 (en) | 2013-08-19 | 2017-05-09 | Stable Concrete Structures, Inc. | Methods of and systems for controlling water flow, breaking water waves and reducing surface erosion along rivers, streams, waterways and coastal regions |
US20170009452A1 (en) * | 2015-07-10 | 2017-01-12 | Mark Holtzapple | Retaining wall system using interlocking concrete masonry units |
US11225792B2 (en) * | 2016-05-05 | 2022-01-18 | Edward Robak | Insulating construction panels, systems and methods |
CN107599121B (en) * | 2017-09-19 | 2023-05-23 | 吴江市明港道桥工程有限公司 | Concrete pre-compaction vibration mechanism |
US11542709B2 (en) * | 2020-01-06 | 2023-01-03 | Jd Russell Company | Protective cap for reinforcement bars |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2567549A (en) * | 1945-10-31 | 1951-09-11 | Joseph O Christensen | Machine for molding concrete blocks |
US2582161A (en) * | 1949-03-31 | 1952-01-08 | R C Draughon And Norman B Rand | Concrete molding machine |
DE2608871A1 (en) * | 1976-03-04 | 1977-09-08 | Sf Vollverbundstein | Large paving slab with small paving stone effect - consists of detachably joined clusters of undetachably joined stones |
DE3738819A1 (en) * | 1987-11-16 | 1989-05-24 | Sf Vollverbundstein | CONCRETE PALISADE AND METHOD AND DEVICE FOR PRODUCING THE SAME |
US4860505A (en) * | 1988-05-26 | 1989-08-29 | Bender David C | Construction block |
US5205943A (en) * | 1989-08-23 | 1993-04-27 | Jazzar M Omar A | Apparatus for manufacture of precast concrete building units |
JPH0775798B2 (en) * | 1991-06-26 | 1995-08-16 | 日本碍子株式会社 | Block body forming device |
DE4409271A1 (en) * | 1994-03-18 | 1995-09-21 | Michael Dipl Ing Weber | Square=section vertically=perforated brick |
-
2001
- 2001-02-17 DE DE10107531A patent/DE10107531A1/en not_active Withdrawn
- 2001-12-20 DK DK01990579T patent/DK1349717T3/en active
- 2001-12-20 DE DE50112207T patent/DE50112207D1/en not_active Expired - Lifetime
- 2001-12-20 WO PCT/EP2001/015097 patent/WO2002051603A2/en active IP Right Grant
- 2001-12-20 AT AT01990579T patent/ATE356703T1/en not_active IP Right Cessation
- 2001-12-20 ES ES01990579T patent/ES2284719T3/en not_active Expired - Lifetime
- 2001-12-20 EP EP01990579A patent/EP1349717B1/en not_active Expired - Lifetime
- 2001-12-20 CA CA002400448A patent/CA2400448A1/en not_active Abandoned
- 2001-12-20 US US10/204,385 patent/US7048250B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE10107531A1 (en) | 2002-06-27 |
EP1349717A2 (en) | 2003-10-08 |
US7048250B2 (en) | 2006-05-23 |
ES2284719T3 (en) | 2007-11-16 |
DK1349717T3 (en) | 2007-07-16 |
WO2002051603A2 (en) | 2002-07-04 |
US20030140574A1 (en) | 2003-07-31 |
CA2400448A1 (en) | 2002-07-04 |
DE50112207D1 (en) | 2007-04-26 |
WO2002051603A3 (en) | 2002-09-19 |
ATE356703T1 (en) | 2007-04-15 |
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