EP2643133B1 - Mold for producing molded concrete blocks - Google Patents

Mold for producing molded concrete blocks Download PDF

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Publication number
EP2643133B1
EP2643133B1 EP11817270.9A EP11817270A EP2643133B1 EP 2643133 B1 EP2643133 B1 EP 2643133B1 EP 11817270 A EP11817270 A EP 11817270A EP 2643133 B1 EP2643133 B1 EP 2643133B1
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EP
European Patent Office
Prior art keywords
wall panels
slot
mould according
partition wall
panels
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EP11817270.9A
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German (de)
French (fr)
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EP2643133A2 (en
Inventor
Holger Stichel
Jörg RASBIELER
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Kobra Formen GmbH
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Kobra Formen GmbH
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Application filed by Kobra Formen GmbH filed Critical Kobra Formen GmbH
Priority to SI201130793A priority Critical patent/SI2643133T1/en
Priority to PL11817270T priority patent/PL2643133T3/en
Publication of EP2643133A2 publication Critical patent/EP2643133A2/en
Application granted granted Critical
Publication of EP2643133B1 publication Critical patent/EP2643133B1/en
Priority to HRP20160412TT priority patent/HRP20160412T1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/16Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/162Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for building blocks or similar block-shaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/24Unitary 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
    • B28B7/241Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces

Definitions

  • the invention relates to a mold for the production of concrete blocks.
  • Molds for the industrial production of concrete blocks in concrete molding machines typically have a plurality of mold cavities arranged side by side and separated from one another by intermediate walls.
  • the entirety of the mold cavities is also referred to as a stone field, wherein the marginal mold cavities are limited to the outside of the stone field facing by outer walls.
  • at least the intermediate walls are typically formed by wall plates which are directly or indirectly connected to each other and on the outer walls and form a substantially rigid box.
  • the mold cavities are upwardly and downwardly open and the wall panels are formed continuously vertically between lower and upper bounding planes of the mold.
  • the stone field is usually surrounded by a cover frame surface, which may be formed in particular by exchangeable wear plates.
  • the mold cavity limiting wall surfaces are exposed to considerable mechanical stresses, especially static by high side pressure of the concrete set, abut pressure plates at the top, and are dynamically by abrasion of moving during shaking and demolding along the wall surfaces granular components of the concrete amount to reduce wear by abrasion the surfaces of the side walls advantageously hardened.
  • Hardening gives case hardening a higher resistance to wear than nitriding, but it also poses a greater risk of forgiving molds and having to be reworked after curing with great effort.
  • Weld-free connections can for example be given by the fact that the partitions are designed in a first direction as over the entire stone field continuous first wall plates and extending in a second direction transverse thereto intermediate walls only between two first wall plates and connectors on their first wall plates assigning faces are positively connected to the first wall plates.
  • the US 4,249,358 describes forms with intersecting wall panels as partitions and outer walls of mold cavities of a stone field, which are comb-like inserted into each other at points of intersection on oppositely directed slots and outside the stone field without welding attached to a mold frame.
  • the invention has for its object to provide an advantageous structure of a form with intersecting at intersections wall plates.
  • the support structures are formed as depressions, namely as grooves in the wall surface of a first of the two intermeshed at the junction point wall plates, in which the edges of the slot of the second of the two wall plates are supported.
  • the edges of the slots of both intersecting mated partition panels are mutually fixed to support structures of the respective other partition panel and supported against a change in position parallel to the wall surface of the panel structures having the support structures.
  • Recesses designed as first grooves in the extension of a first slot as holding structures in the wall surface of a first partition wall are advantageously formed over the entire extent of the first partition walls in extension of the first slot, so that the edges of the second slot over the entire length of the first grooves in this inserted and positively fixed.
  • the depth of engagement of the edges of the second slot in the first grooves in a lying at the opening of the second slot initial area is greater than in a spaced-apart from the slot opening area.
  • the first grooves may have a constant cross-section over their vertical longitudinal extent and the edges of the second slot in the initial region facing each other pointing projections.
  • a slot edge In the area spaced from the slot opening, a slot edge then has a greater distance from the bottom of the slot than at the beginning.
  • the projections can also rest firmly against the groove bottoms, without the mating of the intermediate wall plates at the point of intersection being appreciably impeded.
  • the outer walls of the mold cavities of the stone field are also bounded by wall plates, hereinafter referred to as outer wall panels.
  • the partition plates may also preferably via comb-like slot connectors at intersections with partition plates and / or other outer wall panels to be connected without welding. At these crossing points, other forms of connection can be given.
  • Relative fixing of outer wall panels to one another and to the intermediate wall panels preferably takes place outside of the stone field, for which purpose the partition panels advantageously protrude laterally beyond the outer wall panels with projections.
  • no welds are performed on the Formnester limiting plate sections.
  • connecting elements can be arranged on outer surfaces of the outer wall panels and / or intermediate wall panels, which effect a relative vertical fixation of intermediate wall panels and outer wall panels.
  • the mold has an outline which is substantially rectangular in plan, limited by longitudinal sides and transverse sides, and flanges for clamping into a molding machine on both lateral sides, but not on the longitudinal sides, by means of which the mold is filled during filling of the mold cavities and during a vibrating operation to solidify the mold Betongemenges to concrete blocks on the vibratory pad with high power is pressed.
  • the largest Force load is assumed during the lifting of the mold during demoulding of the concrete blocks, occur in a matched to a vibratory pad form the maximum loads during the shaking, in particular the pad upward forces on the lower edges of the wall plates of the mold and Maschineneinhard downwardly directed Exert forces on the flanges on the transverse sides.
  • the slot openings point downwards, so that a narrowing of the slot opening connected to a deflection of these partition panels is particularly advantageously compensated by supporting the slot edges on the transverse wall panels and a deflection is particularly low can be held.
  • the length of the downwardly facing slots is not more than 45%, in particular not more than 40% of the total height of the partition plates.
  • the length of the upwardly open slots then at least 55%, in particular at least 60% of the total height of the partition plates.
  • Fig. 1 shows in oblique view from above a complete mold for the production of hollow blocks, to which the invention is explained below.
  • Plotted with is a shape-related, right-angled xyz-coordinate system, the xy plane of which runs horizontally in the regular operating position of the mold and whose z-direction indicates the vertical direction.
  • the x-direction is also referred to below as the transverse direction and the y-direction as the longitudinal direction.
  • the mold has a plurality of mold cavities FN, which lie between an in Fig. 1 visible upper horizontal boundary plane and one in Fig. 1 covered concealed lower horizontal boundary plane with substantially constant cross section and are open at the top and bottom.
  • the mold is placed in operation with the lower boundary plane on a vibratory pad of a molding machine and arranged on two opposite in the longitudinal direction y opposite transverse sides arranged machine flanges FM in a molding machine and pressed onto the vibratory pad.
  • a filling carriage is typically moved over the mold in the x-direction.
  • dirt strips or guide rails WF may be provided at the top of the mold dirt strips or guide rails WF may be provided.
  • the entirety of the plurality of mold cavities FN forms the stone field which is bounded outwardly by longitudinal outer walls AL extending in the longitudinal direction y and transverse transverse outer walls AQ extending in the transverse direction x.
  • the outer walls AL, AQ are advantageously formed by wall panels.
  • the mold cavity is subdivided by longitudinal intermediate walls ZL extending in the longitudinal direction y and by transverse transverse walls ZQ extending in the transverse direction x into the plurality of mold cavities.
  • the intermediate walls intersect at points of intersection KP and are there inserted into one another in a manner described in more detail below and held together without any welds.
  • the partition walls ZL, ZQ are also designed as wall panels and go in the longitudinal direction or transverse direction uninterrupted between the outer walls AL and AQ through the stone field. At the crossing points, the intermediate wall plates ZQ, ZL are supported horizontally against each other.
  • a vertical fixation between running in the longitudinal direction and in the transverse direction wall panels is advantageously carried out by connecting means outside the stone field, for what in Fig. 1 a clamping strip SL shown in the longitudinal direction is shown, which is guided through recesses SA in over the longitudinal outer wall panels AL beyond projecting plate projections UQ of the transverse partition plates.
  • Form cores FK which are held on the stone field spanning core holder strips KL, are arranged in the mold cavities FN.
  • the machine flanges FM are advantageously connected to the plate ends of the longitudinally extending intermediate wall panels ZL and outer wall panels AL in order to transmit the forces of the molding machine to the mold. There are no machine flanges on the long sides of the mold. When the mold is pressed onto the vibratable support via the machine flanges FM clamped in the molding machine, the mold is therefore stressed, in particular, by deflection in y-z planes.
  • Fig. 2 shows components of in Fig. 1 illustrated form in an assembly diagram. In Fig. 2 for clarity, not shown are the mandrels FK and the core holder strips KL. In Fig. 2 the longitudinally and transversely extending wall panels are still shown in the mated condition.
  • Fig. 3 shows only those in the form Fig. 1 and Fig. 2 inserted wall panels in disassociated, but aligned for assembly representation.
  • the longitudinal intermediate wall panels ZL and one of the longitudinal outer wall panels AL have on one side a non-planar structure, which for producing depressions in side surfaces of a hollow block, into which mortar or adhesive for connecting adjacent stones can be introduced.
  • the wall panels are substantially flat and advantageously at least approximately of the same thickness, which favors the uniform and low-distortion hardening in a common hardening process.
  • the flatness of the plates is not mandatory, but is particularly advantageous in terms of production and common for a variety of stone shapes. The following is therefore without limitation of generality assumed forms with longitudinally and transversely straight wall panels.
  • the longitudinal intermediate wall plates ZL have upwardly leading lower slots SU from their lower edges UK, and in the transverse intermediate wall plates ZQ, slots SO are guided downwardly in a corresponding manner from the upper edges of these transverse partition plates. Also in the outer wall panels AL, AQ and the additional wall panels WZ corresponding slots are formed.
  • the longitudinal or transverse wall panels, which cross each other in vertical projection, are plugged together with vertically aligned lower slots SU and upper slots SO. The slots are then at the intersections of the composite plates.
  • Fig. 4 shows to further illustrate the invention, only a longitudinal intermediate wall ZL and a transverse partition ZQ, which are inserted into each other at a crossing point KP, so that the lower edges of both wall panels lie in a common lower boundary plane.
  • the plug-in connection of the two wall panels in the crossing point KP ensures that both wall panels are supported on one another both in the longitudinal direction y and in the transverse direction x.
  • Essential to the invention is that at the intersection not only a lateral overlap of the longitudinal intermediate wall ZL is given by a slot SO of the transverse partition ZQ and a spreading of the transverse partition ZQ through a slot SU of the longitudinal partition ZL, but that in addition the slot edges of at least one slot SU or SO, preferably both slots by holding structures on the wall plate encompassed by the respective slot additionally in the horizontal direction parallel to are supported by the embraced wall plate.
  • the edges of an upwardly open slot SO of the transverse partition wall ZQ are thereby additionally supported in the y-direction at the point of intersection KP, so that no deflection, in particular of the upper edge of the transverse partition wall ZQ, can occur in the region of the slot opening.
  • Fig. 4 outlines such holding structures on the wall panels realized by grooves in extension of the slots.
  • upper grooves NO are formed as recesses against the surrounding plate surface. Slot edges of an upwardly open slot SO of the transverse partition wall ZQ are located in a crossing point KP in these upper grooves NO and thus prevent escaping in particular of the upper edges of the transverse partition wall ZQ at the crossing point KP in the y direction when high forces occur.
  • lower grooves NU are provided in the transverse partition ZQ, and edges of a lower slot SU of the longitudinal partition ZL are in lower grooves NU of the transverse partition ZQ against deflection in the x direction supported.
  • the support is of particular importance in the respective slot openings, since the wall panels are here exposed to the greatest bending moments in opposing plate sides possibly unequal acting forces on the wall panels.
  • the slots are therefore advantageously in the range their openings narrowed by a small amount compared to their remaining course.
  • the lower slots SU are in the region of the slot opening at the lower edge of the longitudinal partition wall wall projections VU, at the upper slots SO in the transverse partition projections VO are formed, which narrow the slot width in the region of the slot opening slightly compared to the rest of the slot.
  • Such a special design of the slots is of particular advantage for the transverse support of the particularly loaded plate edges in the region of the slot openings on the one hand and for easy mating cross-plates in the crossing points on the other.
  • the lower slots would be narrowed, but this is largely prevented by the support of the Nutenr selected the lower slots SU in the lower grooves NU of the transverse partition plate in the y direction, so that by this choice of the orientation of the slot openings in the longitudinal partition plates after below the bending stiffness of these plates is increased against the particular bending stresses in the molding machine during the shaking operation.
  • the transverse partition plates ZQ are not exposed to significant bending stresses, since on the opposite ends this transverse partition plates no special acting beyond the inherent rigidity of the mold depressing forces act.
  • the particular and different bending stresses of the longitudinal and the transverse partition plates with the machine flanges exclusively at the opposite ends of the longitudinal partition plates is also advantageously taken into account that the slot length of the lower slots SU in the longitudinal partition plates is less than the length the upper slots SO in the transverse partition plates.
  • Fig. 5 is a longitudinal intermediate wall plate ZL singled shown in different views, wherein Fig. 5 (A) an oblique view, Fig. 5 (B) a bottom view of the bottom edge and Fig. 5 (C) represents a view in the x-direction perpendicular to the plate surface.
  • the individual design features of the longitudinal intermediate wall plate ZL are with the already in Fig. 4 used reference numerals, so that the explanations to Fig. 4 is referenced.
  • Fig. 5 are designated by Roman numerals VII, VIII and IX areas, which in FIGS. 7, 8 and 9 are shown enlarged.
  • Fig. 6 shows an oblique view of an isolated transverse partition wall plate ZQ, in which HO denotes the slot length of the upper slot SO.
  • the slot length HO is advantageously at least 55%, in particular at least 60% of the total height HW of the wall panel.
  • the rest in Fig. 6 Reference numerals used in their identification are identical to the reference numerals used in the preceding figures, to which reference is made.
  • Fig. 7 shows as a section VII Fig. 5 (A) in oblique view, a lower slot SU in a longitudinal intermediate wall plate ZL.
  • Fig. 8 shows the section with view parallel to the x-direction.
  • the bottom slot SU is open to the lower edge UK of the wall plate.
  • the slit width measured in the y direction is reduced to a width dimension DU by opposed cams as projections VU.
  • the dimension DU is matched to the wall thickness reduced in the lower groove NU of the transverse partition panel.
  • the slot SU is made wider by a small amount.
  • an upper groove NO is formed as a depression against the wall surface of the longitudinal partition wall plate as a support structure for the slit edges of a transverse partition wall plate mated at a crossing point with the longitudinal partition wall plate ZL.
  • the width of the groove NO in the y-direction is preferably substantially equal to the cam spacing DU.
  • the width BO of the groove NO is tuned to the width of the upper cam VO, which is reduced in relation to the surrounding wall thickness of the transverse partition wall plate, at the opening from the slot SO open at the top.
  • Fig. 9 is a bottom view of the lower slot SU of the longitudinal partition plate after 8 and 9 shown, from which the opposite upper grooves NO as depressions against the wall surface and the projecting from the edges of the lower slot on both sides of the slot center lower projections VU are visible. With a broken line a concealed in this view chamfer FA is indicated on the upper edge of the longitudinal partition plate.
  • Fig. 10 shows an oblique view of a section of a transverse partition plate with an upper slot SO.
  • the slot SO is narrowed at the slot opening at the upper edge of the transverse partition panel by upper projections VO directed toward the slot center, and from the slot opening in the direction of the slot bottom after the upper protrusions VO in a region spaced from the slot opening area widens again.
  • the lower groove NU in the transverse partition wall plate is continued to the upper edge thereof, so that the upper projections VO do not extend in the y-direction over the entire plate thickness, but at this point in vertical projection, a stepped course of the edges of the upper slot occurs ,
  • Fig. 11 shows as a sectional view in a yz-sectional plane a section of a crossing point with a longitudinal intermediate wall plate ZL and a mating with this transverse partition plate ZQ. From the illustration to Fig. 11 In particular, it can be seen that the spacing of the edges of the lower slot SU from the transverse baffle plate in the y-direction is greater in a region spaced from the lower slot opening of the lower slot SU than in an area at the lower slot opening where the edges of the lower Slot over lower projections VU are formed projecting towards the slot center. This is particularly advantageous for the mating of the wall panels in the crossing point. This is in an in Fig. 15 shown section C from Fig. 11 further illustrated. In the in Fig. 15 shown section between the lower projections VU and the transverse partition plate ZQ is still a narrow gap indicated. However, the lower projections VU can also rest directly on the transverse partition plate ZQ in the y direction.
  • Fig. 12 shows a view on a crossing point from below. From this view, it is clear how the edges of the lower slot SU of the longitudinal partition plate ZL engage in the lower groove NU of the transverse partition plate ZQ and how the edges of the slot SU are positively supported on the side edges of the lower groove in the x direction. A reliable support is in particular in the region of the lower projections VU by the deeper Intervention in the grooves NU given.
  • Fig. 12 with XI - XI is the cutting plane in the view Fig. 11 indicating that the in Fig. 11 hatched for the transverse partition wall plate ZQ sectional area is not the full wall thickness of the transverse partition wall plate ZQ, but the reduced in the region of the lower grooves NU wall thickness.
  • Fig. 13 shows a view vertically from above to a crossing point and illustrates the graded in this area the course of the edges of the upper slot SO with the not the full wall thickness of the transverse partition plate ZQ engaging upper projections VO.
  • the upper slot SO may be formed engaging in the upper groove NO in an area spaced from its slot opening in the direction of the slot bottom, the engagement depth in this spaced area being advantageously less than the engagement depth of the projections VO in the groove NO.
  • the upper slot SO can but the in Fig.
  • Fig. 14 shows an enlarged section C from Fig. 11 in which the design of the slot bottom of the lower slot SU is shown enlarged.
  • the side walls of the lower slot SU pass over the slots FR in the region of the slot depth GU bounding the depth of insertion during the mating of longitudinal and transverse partition plates, via roundings FR, thereby reliably avoiding the occurrence of high notch stresses in this area.
  • the area of the upper slot SO in the region of its slot bottom GO is advantageously designed in the same way.
  • Fig. 16 shows a further embodiment of a mold with the inventive compound of longitudinal and transverse partition plates, wherein the in Fig. 16 As shown, the cover plates and the core holder assembly are omitted.
  • Fig. 17 shows an enlarged section Fig. 16 , At the in Fig. 16
  • the transverse intermediate wall panels extending in the transverse direction x are connected to the longitudinal outer wall panels AL via plate sections UQ protruding beyond the longitudinal outer wall panels AL via angle connectors VW.
  • the angle connectors VW are bolted to both the protruding portions UQ and the outsides of the outer wall panels AL via two vertical connector legs.
  • the angle connectors VW can have an additional horizontal connector leg, which serves to screw the cover plates onto the mold.
  • the plate portions of the transverse outer wall panels AQ transversely beyond the outer wall panel AL may be connected to the longitudinal outer wall panels AL by the same angle connectors.
  • About additional holding elements HL, which are positively inserted into recesses of the outer surface of the outer wall panels AL and bolted to the outer wall panels AL, which can over the outer wall panels projecting portions of core holder strips vertically down against the outer wall plates are braced.
  • connection angle VF On the transverse sides of the mold further connection angle VF are provided, by means of which the machine flange strips FM are attached to the longitudinal intermediate wall panels and longitudinal outer wall panels.
  • the angle connectors VF can advantageously also serve at the same time for screwing the transverse cover plates DQ or DL on the mold.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
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Description

Die Erfindung betrifft eine Form zur Herstellung von Betonformsteinen.The invention relates to a mold for the production of concrete blocks.

Formen zur industriellen Herstellung von Betonformsteinen in Betonformmaschinen weisen typischerweise eine Mehrzahl von nebeneinander angeordneten und durch Zwischenwände voneinander getrennten Formnestern auf. Die Gesamtheit der Formnester wird auch als Steinfeld bezeichnet, wobei die randständigen Formnester zur Außenseite des Steinfelds weisend durch Außenwände begrenzt sind. Insbesondere für hohe Formen, beispielsweise zur Herstellung von Hohlblocksteinen, sind zumindest die Zwischenwände typischerweise durch Wandplatten gebildet, welche untereinander und auf den Außenwänden direkt oder indirekt verbunden sind und einen im wesentlichen starren Kasten bilden. Die Formnester sind nach oben und unten offen und die Wandplatten sind vertikal zwischen einer unteren und einer oberen Begrenzungsebene der Form durchgehend ausgebildet. An der Oberseite der Form ist das Steinfeld in der Regel von einer Deckrahmenfläche, welche insbesondere durch austauschbare Verschleißbleche gebildet sein kann, umgeben.Molds for the industrial production of concrete blocks in concrete molding machines typically have a plurality of mold cavities arranged side by side and separated from one another by intermediate walls. The entirety of the mold cavities is also referred to as a stone field, wherein the marginal mold cavities are limited to the outside of the stone field facing by outer walls. In particular, for tall molds, for example for the production of hollow blocks, at least the intermediate walls are typically formed by wall plates which are directly or indirectly connected to each other and on the outer walls and form a substantially rigid box. The mold cavities are upwardly and downwardly open and the wall panels are formed continuously vertically between lower and upper bounding planes of the mold. At the top of the mold, the stone field is usually surrounded by a cover frame surface, which may be formed in particular by exchangeable wear plates.

Die die Formnester begrenzenden Wandflächen sind erheblichen mechanischen Beanspruchungen ausgesetzt, insbesondere statisch durch hohen Seitendruck des Betongemenges, an dessen Oberseite Druckplatten anliegen, und dynamisch durch Abriebskräfte der beim Rütteln und beim Entformen entlang der Wandflächen bewegten körnigen Bestandteile des Betongemenges zur Verminderung von Verschleißerscheinungen durch Abrieb werden die Oberflächen der Seitenwände vorteilhafterweise gehärtet. Bei der Härtung ergibt eine Einsatzhärtung eine höhere Verschleißfestigkeit als eine Nitrierung, birgt aber auch eine größere Gefahr, dass sich Formen verziehen und mit hohem Aufwand nach der Härtung nachgearbeitet werden müssen.The mold cavity limiting wall surfaces are exposed to considerable mechanical stresses, especially static by high side pressure of the concrete set, abut pressure plates at the top, and are dynamically by abrasion of moving during shaking and demolding along the wall surfaces granular components of the concrete amount to reduce wear by abrasion the surfaces of the side walls advantageously hardened. Hardening gives case hardening a higher resistance to wear than nitriding, but it also poses a greater risk of forgiving molds and having to be reworked after curing with great effort.

Während bei Formen, bei welchen Zwischenwände nur in einer Richtung zwischen gegenüber liegenden Außenwänden verlaufen, die Verbindungen der Zwischenwände mit den Außenwänden auf relativ einfache Arten formstabil ausführbar sind, ist dies bei Formen mit in verschiedene Richtungen verlaufenden und sich an Kreuzungspunkten überschneidenden Zwischenwänden bedeutend schwieriger.While in forms in which intermediate walls extend only in one direction between opposite outer walls, the compounds of the intermediate walls with the outer walls in a relatively simple manner dimensionally stable executable, this is significantly more difficult in forms with running in different directions and at intersections intersecting partitions.

Schweißverbindungen der Wandplatten an Kreuzungspunkten bilden zwar stabile Verbindungen, schwächen aber bei Verschweißung nach der Härtung die Verschleißfestigkeit und erhöhen die Dauerbruchsgefahr. Formen mit vor der Härtung verschweißten Wandplatten weisen nach der Härtung häufig einen starken Verzug auf.Welded connections of the wall panels at intersection points form stable connections, but weaken wear resistance after hardening and increase the risk of fatigue failure. Forms with wall plates welded before curing often show a strong distortion after hardening.

Verschweißungsfreie Verbindungen können beispielsweise dadurch gegeben sein, dass die Zwischenwände in einer ersten Richtung als über das gesamte Steinfeld durchgehende erste Wandplatten ausgeführt sind und in einer zweiten Richtung quer dazu verlaufende Zwischenwände nur zwischen zwei ersten Wandplatten verlaufen und über Steckverbindungen an ihren den ersten Wandplatten zuweisenden Stirnflächen mit den ersten Wandplatten formschlüssig verbunden sind. Die US 4 249 358 beschreibt Formen mit sich überkreuzenden Wandplatten als Zwischenwänden und Außenwände von Formnestern eines Steinfelds, welche an Kreuzungspunkten über entgegen gesetzt ausgerichtete Schlitze kammartig ineinander gesteckt und außerhalb des Steinfelds verschweißungsfrei an einem Formrahmen befestigt sind.Weld-free connections can for example be given by the fact that the partitions are designed in a first direction as over the entire stone field continuous first wall plates and extending in a second direction transverse thereto intermediate walls only between two first wall plates and connectors on their first wall plates assigning faces are positively connected to the first wall plates. The US 4,249,358 describes forms with intersecting wall panels as partitions and outer walls of mold cavities of a stone field, which are comb-like inserted into each other at points of intersection on oppositely directed slots and outside the stone field without welding attached to a mold frame.

In der JP 60 053512 U ist eine Form zur Herstellung von Betonsteinen beschrieben, die aus Pappe oder Karton besteht, gemäß dem Oberbegriff des Anspruchs 1.In the JP 60 053512 U a mold for the production of concrete blocks is described, which consists of cardboard or cardboard, according to the preamble of claim 1.

Aus der DE 18 18 977 U ist eine Getränkekiste bekannt.From the DE 18 18 977 U is a crate known.

Der Erfindung liegt die Aufgabe zugrunde, einen vorteilhaften Aufbau einer Form mit sich an Kreuzungspunkten überschneidenden Wandplatten anzugeben.The invention has for its object to provide an advantageous structure of a form with intersecting at intersections wall plates.

Die Erfindung ist im unabhängigen Anspruch beschrieben. Die abhängigen Ansprüche enthalten vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung.The invention is described in the independent claim. The dependent claims contain advantageous refinements and developments of the invention.

Durch die formschlüssige Fixierung der Ränder eines Schlitzes einer Zwischenwandplatte mittels Haltestrukturen an der anderen Zwischenwandplatte eines Kreuzungspunkts ergibt sich vorteilhafterweise mit geringem Aufwand ohne Verschweißung oder zusätzliche mechanische Verbindungselemente eine Querabstützung mit hoher Stabilität der an dem Kreuzungspunkt bestehenden Steckverbindung zweier Zwischenwandplatten. Insbesondere kann ein seitliches Abweichen der Wandplatten von dem vertikalen Verlauf im Bereich der Öffnung des Schlitzes, z. B. unter Einwirkung des hydrostatischen Drucks im Betongemenge.Due to the positive fixing of the edges of a slot of a partition wall plate by means of holding structures on the other partition plate of a crossing point results advantageously with little effort without welding or additional mechanical fasteners a transverse support with high stability of existing at the intersection point connector of two partition plates. In particular, a lateral deviation of the wall panels from the vertical course in the region of the opening of the slot, for. B. under the influence of hydrostatic pressure in the concrete amount.

Bei den Angaben oben, unten, vertikal, horizontal usw. sei dabei und im folgenden von einer regulären Betriebslage der Form in einer Formmaschine ausgegangen, bei welcher die Form mit einer unteren Begrenzungsebene auf einer horizontalen ebenen Unterlage aufliegt und die Formnester in vertikaler Richtung einen im wesentlichen gleichbleibenden Querschnitt besitzen.In the above, below, vertically, horizontally, etc. let and in the following from a regular operating position of the mold in a molding machine, in which the mold rests with a lower boundary plane on a horizontal flat surface and the mold cavities in the vertical direction in the have substantially constant cross-section.

Durch die formschlüssige Fixierung können vorteilhafterweise auch eventuell auftretende geringe Formverzüge der Zwischenwandplatten aus einem vorangegangenen Härtevorgang wieder ausgeglichen werden. Die Haltestrukturen sind als Vertiefungen, nämlich als Nuten in der Wandfläche einer ersten der beiden an dem Kreuzungspunkt ineinander gesteckten Wandplatten ausgebildet, in welchen die Ränder des Schlitzes der zweiten der beiden Wandplatten abgestützt sind.Due to the positive fixing advantageously occurring even deformations of the intermediate wall panels can be compensated again from a previous hardening process. The support structures are formed as depressions, namely as grooves in the wall surface of a first of the two intermeshed at the junction point wall plates, in which the edges of the slot of the second of the two wall plates are supported.

Von Bedeutung ist insbesondere die Querabstützung der Ränder der nach unten offenen Schlitze. Vorzugsweise sind an einem Kreuzungspunkt die Ränder der Schlitze beider sich kreuzend ineinander gesteckter Zwischenwandplatten wechselseitig an Haltestrukturen der jeweils anderen Zwischenwandplatte fixiert und gegen eine Lageveränderung parallel zu der Wandfläche der die Halterstrukturen aufweisenden Wandfläche abgestützt.Of particular importance is the transverse support of the edges of the downwardly open slots. Preferably, at an intersection, the edges of the slots of both intersecting mated partition panels are mutually fixed to support structures of the respective other partition panel and supported against a change in position parallel to the wall surface of the panel structures having the support structures.

Als erste Nuten in Verlängerung eines ersten Schlitzes ausgeführte Vertiefungen als Haltestrukturen in der Wandfläche einer ersten Zwischenwandplatte sind vorteilhafterweise über die gesamte Erstreckung der ersten Zwischenwandplatten in Verlängerung des ersten Schlitzes ausgebildet, so dass die Ränder des zweiten Schlitzes über die gesamte Länge der ersten Nuten in diesen einlege und formschlüssig fixiert sind. Außerdem ist die Eingriffstiefe der Ränder des zweiten Schlitzes in die ersten Nuten in einem bei der Öffnung des zweiten Schlitzes liegenden Anfangsbereich größer als in einem von der Schlitzöffnung beabstandeten Bereich. Hierfür können die ersten Nuten einen über ihre vertikale Längserstreckung konstanten Querschnitt besitzen und die Ränder des zweiten Schlitzes in dem Anfangsbereich aufeinander zu weisende Vorsprünge zeigen. In dem von der Schlitzöffnung beabstandeten Bereich weist ein Schlitzrand dann gegen den Grund der Nut einen größeren Abstand auf als im Anfangsbereich. Insbesondere können die Vorsprünge an den Nutengründen auch fest anliegen, ohne dass das Zusammenstecken der Zwischenwandplatten an dem Kreuzungspunkt nennenswert erschwert wäre.Recesses designed as first grooves in the extension of a first slot as holding structures in the wall surface of a first partition wall are advantageously formed over the entire extent of the first partition walls in extension of the first slot, so that the edges of the second slot over the entire length of the first grooves in this inserted and positively fixed. In addition, the depth of engagement of the edges of the second slot in the first grooves in a lying at the opening of the second slot initial area is greater than in a spaced-apart from the slot opening area. For this purpose, the first grooves may have a constant cross-section over their vertical longitudinal extent and the edges of the second slot in the initial region facing each other pointing projections. In the area spaced from the slot opening, a slot edge then has a greater distance from the bottom of the slot than at the beginning. In particular, the projections can also rest firmly against the groove bottoms, without the mating of the intermediate wall plates at the point of intersection being appreciably impeded.

Vorteilhafterweise sind die Außenwände der Formnester des Steinfelds gleichfalls durch Wandplatten, nachfolgend als Außenwandplatten bezeichnet, begrenzt. Die Zwischenwandplatten können vorzugsweise gleichfalls über kammartige Schlitz-Steckverbindungen an Kreuzungspunkten mit Zwischenwandplatten und/oder anderen Außenwandplatten verschweißungsfrei verbunden sein. An diesen Kreuzungspunkten können auch andere Verbindungsformen gegeben sein. Eine relative Fixierung von Außenwandplatten untereinander und mit den Zwischenwandplatten erfolgt vorzugsweise außerhalb des Steinfelds, wofür die Zwischenwandplatten vorteilhafterweise mit Überständen seitlich über den Außenwandplatten hinausragen. Vorteilhafterweise sind dabei an die Formnester begrenzenden Plattenabschnitten keine Verschweißungen durchgeführt. Insbesondere können Verbindungselemente an Außenflächen der Außenwandplatten und/oder Zwischenwandplatten angeordnet sein, welche eine relative vertikale Fixierung von Zwischenwandplatten und Außenwandplatten bewirken.Advantageously, the outer walls of the mold cavities of the stone field are also bounded by wall plates, hereinafter referred to as outer wall panels. The partition plates may also preferably via comb-like slot connectors at intersections with partition plates and / or other outer wall panels to be connected without welding. At these crossing points, other forms of connection can be given. Relative fixing of outer wall panels to one another and to the intermediate wall panels preferably takes place outside of the stone field, for which purpose the partition panels advantageously protrude laterally beyond the outer wall panels with projections. Advantageously, no welds are performed on the Formnester limiting plate sections. In particular, connecting elements can be arranged on outer surfaces of the outer wall panels and / or intermediate wall panels, which effect a relative vertical fixation of intermediate wall panels and outer wall panels.

In besonderer Ausführung können an zwei gegenüber liegenden Seiten des Steinfelds von den dieses begrenzenden Außenwandplatten von dem Steinfeld weg beabstandet zusätzlich, zu den Außenwandplatten im wesentlichen parallele Zusatzplatten vorgesehen sein, welche mit den Außenwandplatten und den dazu gekreuzt verlaufenden Zwischenwandplatten Leerfelder bilden. Durch die Beabstandung zu dem Steinfeld können bei den Zusatzplatten Schweißverbindungen mit den kreuzenden Zwischenwandplatten hergestellt sein, ohne die Verschleißfestigkeit der gehärteten Wandflächen der Formnester zu beeinträchtigen.In a particular embodiment can be provided on two opposite sides of the stone field of the this limiting outer wall panels away from the stone field in addition to the outer wall panels substantially parallel additional plates which form with the outer wall panels and crossed to running partition panels blank spaces. Due to the spacing from the stone field, welding joints with the intersecting partition plates can be produced on the additional panels without impairing the wear resistance of the hardened wall surfaces of the mold cavities.

Vorteilhafterweise weist die Form einen in Draufsicht im wesentlichen rechtekkigen durch Längsseiten und Querseiten begrenzten Umriss und an beiden Querseiten, nicht aber an den Längsseiten Flansche zum Einspannen in eine Formmaschine auf, mittels welcher die Form während des Befüllens der Formnester und während eines Rüttelvorgangs zur Verfestigung des Betongemenges zu Betonformsteinen auf die rüttelbare Unterlage mit hoher Kraft andrückbar ist. Während bei der eingangs genannten US 4 249 358 die größte Kraftbelastung während des Anhebens der Form beim Entformen der Betonformsteine angenommen ist, treten bei einer auf eine rüttelbare Unterlage angepassten Form die Maximalbelastungen während des Rüttelvorgangs auf, wobei insbesondere die Unterlage nach oben gerichtete Kräfte auf die Unterkanten der Wandplatten der Form und die Maschineneinspannung nach unten gerichtete Kräfte auf die Flansche an den Querseiten ausüben. Vorteilhafterweise weisen bei den dabei auf Durchbiegung besonders beanspruchten, zwischen den beiden Querseiten durchgehenden Zwischenwandplatten die Schlitzöffnungen nach unten, so dass eine mit einer Durchbiegung dieser Zwischenwandplatten verbundene Verengung der Schlitzöffnung durch Abstützung der Schlitzränder an den quer verlaufenden Wandplatten besonders vorteilhaft abgefangen und eine Durchbiegung besonders gering gehalten werden kann. Vorteilhafterweise beträgt die Länge der nach unten weisenden Schlitze nicht mehr als 45 %, insbesondere nicht mehr als 40 % der gesamten Höhe der Zwischenwandplatten. In den quer dazu verlaufenden Zwischenwandplatten beträgt die Länge der nach oben offenen Schlitze dann wenigstens 55 %, insbesondere wenigstens 60 % der gesamten Höhe der Zwischenwandplatten.Advantageously, the mold has an outline which is substantially rectangular in plan, limited by longitudinal sides and transverse sides, and flanges for clamping into a molding machine on both lateral sides, but not on the longitudinal sides, by means of which the mold is filled during filling of the mold cavities and during a vibrating operation to solidify the mold Betongemenges to concrete blocks on the vibratory pad with high power is pressed. While at the beginning US 4,249,358 the largest Force load is assumed during the lifting of the mold during demoulding of the concrete blocks, occur in a matched to a vibratory pad form the maximum loads during the shaking, in particular the pad upward forces on the lower edges of the wall plates of the mold and Maschineneinspannung downwardly directed Exert forces on the flanges on the transverse sides. Advantageously, in the case of the intermediate wall panels which are particularly stressed during bending, between the two transverse sides, the slot openings point downwards, so that a narrowing of the slot opening connected to a deflection of these partition panels is particularly advantageously compensated by supporting the slot edges on the transverse wall panels and a deflection is particularly low can be held. Advantageously, the length of the downwardly facing slots is not more than 45%, in particular not more than 40% of the total height of the partition plates. In the transversely extending intermediate wall panels, the length of the upwardly open slots then at least 55%, in particular at least 60% of the total height of the partition plates.

Die Erfindung ist nachfolgend anhand bevorzugter Ausführungsbeispiele unter Bezugnahme auf die Abbildungen noch eingehend veranschaulicht. Dabei zeigt:

Fig. 1
eine komplette Form in Schrägansicht,
Fig. 2
eine Zusammenbaudarstellung von Komponenten der Form nach Fig. 1,
Fig. 3
die Wandplatten zu der Form nach Fig. 1 in Zusammenbaustellung,
Fig. 4
zwei ineinander gesteckte Wandplatten,
Fig. 5
eine Längswandplatte in verschiedenen Ansichten,
Fig. 6
eine Querwandplatte,
Fig. 7
einen vergrößerten Ausschnitt eines Schlitzes,
Fig. 8
die Darstellung nach Fig. 7 mit Blick parallel zur Wandflächennormale,
Fig. 9
einen Blick in den Schlitz von unten,
Fig. 10
eine Schrägansicht eines nach oben offenen Schlitzes,
Fig. 11
eine Schnittdarstellung eines Ausschnitts eines Kreuzungspunkts,
Fig. 12
einen Kreuzungspunkt von unten
Fig. 13
einen Kreuzungspunkt von oben,
Fig. 14
eine vergrößerte Darstellung eines Schlitzendbereichs,
Fig. 15
eine vergrößerte Darstellung eines Abstützungsbereichs,
Fig. 16
eine Variante eines Formaufbaus,
Fig. 17
einen Ausschnitt aus Fig. 16.
The invention is illustrated below with reference to preferred embodiments with reference to the figures still in detail. Showing:
Fig. 1
a complete shape in an oblique view,
Fig. 2
an assembly diagram of components in shape Fig. 1 .
Fig. 3
the wall panels to the shape Fig. 1 in an assembled position,
Fig. 4
two nested wall panels,
Fig. 5
a longitudinal wall panel in different views,
Fig. 6
a transverse wall panel,
Fig. 7
an enlarged section of a slot,
Fig. 8
the representation after Fig. 7 with a view parallel to the wall surface normal,
Fig. 9
a look into the slot from below,
Fig. 10
an oblique view of an upwardly open slot,
Fig. 11
a sectional view of a section of a crossing point,
Fig. 12
a crossing point from below
Fig. 13
a crossroads from above,
Fig. 14
an enlarged view of a Schlitzendbereichs,
Fig. 15
an enlarged view of a support area,
Fig. 16
a variant of a mold design,
Fig. 17
a section from Fig. 16 ,

Fig. 1 zeigt in Ansicht von schräg oben eine komplette Form zur Herstellung von Hohlblocksteinen, an welcher die Erfindung nachfolgend erläutert ist. Mit eingezeichnet ist ein auf die Form bezogenes, rechtwinkliges x-y-z-Koordinatensystem, dessen x-y-Ebene bei regulärer Betriebsstellung der Form horizontal verläuft und dessen z-Richtung dabei die Vertikalrichtung angibt. Die x-Richtung sei nachfolgend auch als Querrichtung und die y-Richtung als Längsrichtung bezeichnet. Fig. 1 shows in oblique view from above a complete mold for the production of hollow blocks, to which the invention is explained below. Plotted with is a shape-related, right-angled xyz-coordinate system, the xy plane of which runs horizontally in the regular operating position of the mold and whose z-direction indicates the vertical direction. The x-direction is also referred to below as the transverse direction and the y-direction as the longitudinal direction.

Die Form weist eine Mehrzahl von Formnestern FN auf, welche zwischen einer in Fig. 1 sichtbaren oberen horizontalen Begrenzungsebene und einer in Fig. 1 verdeckt liegenden unteren horizontalen Begrenzungsebene mit im wesentlichen gleichbleibendem Querschnitt durchgehen und nach oben und unten offen sind. Die Form wird im Betrieb mit der unteren Begrenzungsebene auf eine rüttelbare Unterlage einer Formmaschine aufgesetzt und über zwei an in Längsrichtung y entgegen gesetzt liegenden Querseiten angeordnete Maschinenflansche FM in eine Formmaschine eingespannt und auf die rüttelbare Unterlage angedrückt. Für eine Befüllung der Formnester FN mit fließfähigem Frischbetongemenge wird typischerweise ein Füllwagen in x-Richtung über die Form verfahren. An der Oberseite der Form können Schmutzleisten oder Führungsleisten WF vorgesehen sein.The mold has a plurality of mold cavities FN, which lie between an in Fig. 1 visible upper horizontal boundary plane and one in Fig. 1 covered concealed lower horizontal boundary plane with substantially constant cross section and are open at the top and bottom. The mold is placed in operation with the lower boundary plane on a vibratory pad of a molding machine and arranged on two opposite in the longitudinal direction y opposite transverse sides arranged machine flanges FM in a molding machine and pressed onto the vibratory pad. For a filling of the mold cavities FN with a flowable amount of fresh concrete, a filling carriage is typically moved over the mold in the x-direction. At the top of the mold dirt strips or guide rails WF may be provided.

Die Gesamtheit der mehreren Formnester FN bildet das Steinfeld, welches nach außen durch in Längsrichtung y verlaufende Längs-Außenwände AL und durch in Querrichtung x verlaufende Quer-Außenwände AQ begrenzt ist. Die Außenwände AL, AQ sind vorteilhafterweise durch Wandplatten gebildet.The entirety of the plurality of mold cavities FN forms the stone field which is bounded outwardly by longitudinal outer walls AL extending in the longitudinal direction y and transverse transverse outer walls AQ extending in the transverse direction x. The outer walls AL, AQ are advantageously formed by wall panels.

Das Formnest ist durch in Längsrichtung y verlaufende Längs-Zwischenwände ZL und durch in Querrichtung x verlaufende Querzwischenwände ZQ in die mehreren Formnester unterteilt. Die Zwischenwände überkreuzen sich an Kreuzungspunkten KP und sind dort auf nachfolgend noch näher beschriebene Wiese ineinander gesteckt und verschweißungsfrei aneinander gehalten. Die Zwischenwände ZL, ZQ sind gleichfalls als Wandplatten ausgeführt und gehen in Längsrichtung bzw. Querrichtung ununterbrochen zwischen den Außenwänden AL bzw. AQ durch das Steinfeld durch. An den Kreuzungspunkten sind die Zwischenwandplatten ZQ, ZL horizontal gegeneinander abgestützt. Eine vertikale Fixierung zwischen in Längsrichtung und in Querrichtung verlaufenden Wandplatten erfolgt vorteilhafterweise durch Verbindungseinrichtungen außerhalb des Steinfelds, wofür in Fig. 1 eine in Längsrichtung dargestellte Spannleiste SL dargestellt ist, welche durch Aussparungen SA in über die Längs-Außenwandplatten AL hinaus ragenden Plattenüberständen UQ der Quer-Zwischenwandplatten hindurch geführt ist.The mold cavity is subdivided by longitudinal intermediate walls ZL extending in the longitudinal direction y and by transverse transverse walls ZQ extending in the transverse direction x into the plurality of mold cavities. The intermediate walls intersect at points of intersection KP and are there inserted into one another in a manner described in more detail below and held together without any welds. The partition walls ZL, ZQ are also designed as wall panels and go in the longitudinal direction or transverse direction uninterrupted between the outer walls AL and AQ through the stone field. At the crossing points, the intermediate wall plates ZQ, ZL are supported horizontally against each other. A vertical fixation between running in the longitudinal direction and in the transverse direction wall panels is advantageously carried out by connecting means outside the stone field, for what in Fig. 1 a clamping strip SL shown in the longitudinal direction is shown, which is guided through recesses SA in over the longitudinal outer wall panels AL beyond projecting plate projections UQ of the transverse partition plates.

In den Formnestern FN sind Formkerne FK angeordnet, welche an das Steinfeld überspannenden Kernhalterleisten KL gehalten sind.Form cores FK, which are held on the stone field spanning core holder strips KL, are arranged in the mold cavities FN.

In Längsrichtung y von den Quer-Außenwandplatten AQ vom Steinfeld weg versetzt sind in dem in Fig. 1 dargestellten Beispiel zusätzliche Wandplatten WZ vorgesehen, welche zu den Quer-Außenwandplatten AQ parallel verlaufen und an den in Längsrichtung y gegenüber liegenden Querseiten außerhalb des Steinfelds Leerfelder bilden. Die in Längsrichtung y verlaufenden Längs-Zwischenwände ZL verlaufen auch mit diesen zusätzlichen Wandplatten WZ überkreuzend und ragen mit Plattenabschnitten UL in Längsrichtung über die zusätzlichen Wandplatten WZ hinaus. An der Oberseite der Form sind in Längsrichtung verlaufende Deckbleche DL und in Querrichtung verlaufende Deckbleche DQ angeordnet, welche typischerweise als Verschleißteile lösbar mit der Form verbunden sind.In the longitudinal direction y of the transverse outer wall panels AQ offset from the stone field are in the in Fig. 1 shown additional wall panels WZ provided which extend parallel to the transverse outer wall panels AQ and form at the longitudinal sides in the opposite y lateral sides outside the stone field empty fields. The longitudinal intermediate walls ZL running in the longitudinal direction y also run crosswise with these additional wall panels WZ and protrude with plate sections UL in the longitudinal direction beyond the additional wall panels WZ. At the top of the mold are longitudinal cover plates DL and extending in the transverse direction Cover plates DQ arranged, which are typically releasably connected as wearing parts with the mold.

Die Maschinenflansche FM sind vorteilhafterweise mit den Plattenenden der in Längsrichtung verlaufenden Zwischenwandplatten ZL und Außenwandplatten AL verbunden, um die Kräfte der Formmaschine auf die Form zu übertragen. An den Längsseiten der Form sind keine Maschinenflansche angebracht. Beim Andrücken der Form auf die rüttelbare Unterlage über die in die Formmaschine eingespannten Maschinenflansche FM ist daher die Form insbesondere auf Durchbiegung in y-z-Ebenen beansprucht.The machine flanges FM are advantageously connected to the plate ends of the longitudinally extending intermediate wall panels ZL and outer wall panels AL in order to transmit the forces of the molding machine to the mold. There are no machine flanges on the long sides of the mold. When the mold is pressed onto the vibratable support via the machine flanges FM clamped in the molding machine, the mold is therefore stressed, in particular, by deflection in y-z planes.

Fig. 2 zeigt Komponenten der in Fig. 1 dargestellten Form in einer Zusammenbau-Darstellung. In Fig. 2 der Übersichtlichkeit halber nicht mit dargestellt sind die Formkerne FK und die Kernhalterleisten KL. In Fig. 2 sind die in Längsrichtung und Querrichtung verlaufenden Wandplatten noch in dem zusammen gesteckten Zustand dargestellt. Fig. 2 shows components of in Fig. 1 illustrated form in an assembly diagram. In Fig. 2 for clarity, not shown are the mandrels FK and the core holder strips KL. In Fig. 2 the longitudinally and transversely extending wall panels are still shown in the mated condition.

Fig. 3 zeigt ausschließlich die bei der Form nach Fig. 1 und Fig. 2 eingesetzten Wandplatten in voneinander gelöster, aber zur Zusammenfügung ausgerichteter Darstellung. Die Längs-Zwischenwandplatten ZL und eine der Längs-Außenwandplatten AL weisen an einer Seite eine nicht ebene Struktur auf, welche zur Herstellung von Vertiefungen in Seitenflächen eines Hohlblocksteins erzeugen, in welche Mörtel oder Kleber zum Verbinden benachbarter Steine eingebracht werden kann. Im übrigen sind die Wandplatten im wesentlichen eben und vorteilhafterweise zumindest annähernd von gleicher Dicke, was die gleichmäßige und verzugsarme Härtung in einem gemeinsamen Härtevorgang begünstigt. Die Ebenheit der Platten ist nicht zwingend, ist aber hinsichtlich der Herstellung besonders vorteilhaft und für eine Vielzahl von Steinformen gebräuchlich. Im folgenden wird daher ohne Beschränkung der Allgemeinheit von Formen mit in Längsrichtung und Querrichtung gerade verlaufenden Wandplatten ausgegangen. Fig. 3 shows only those in the form Fig. 1 and Fig. 2 inserted wall panels in disassociated, but aligned for assembly representation. The longitudinal intermediate wall panels ZL and one of the longitudinal outer wall panels AL have on one side a non-planar structure, which for producing depressions in side surfaces of a hollow block, into which mortar or adhesive for connecting adjacent stones can be introduced. Moreover, the wall panels are substantially flat and advantageously at least approximately of the same thickness, which favors the uniform and low-distortion hardening in a common hardening process. The flatness of the plates is not mandatory, but is particularly advantageous in terms of production and common for a variety of stone shapes. The following is therefore without limitation of generality assumed forms with longitudinally and transversely straight wall panels.

Die Längs-Zwischenwandplatten ZL weisen von ihren Unterkanten UK her nach oben führende untere Schlitze SU auf und in den Quer-Zwischenwandplatten ZQ sind in entsprechender Weise von den Oberkanten dieser Quer-Zwischenwandplatten Schlitze SO nach unten geführt. Auch in den Außenwandplatten AL, AQ und den zusätzlichen Wandplatten WZ sind entsprechende Schlitze ausgebildet. Die in vertikaler Projektion einander überkreuzend verlaufenden Längs- bzw. Quer-Wandplatten werden mit in Vertikalrichtung fluchtenden unteren Schlitzen SU und oberen Schlitzen SO zusammen gesteckt. Die Schlitze liegen dann an den Kreuzungspunkten der zusammengesetzten Platten.The longitudinal intermediate wall plates ZL have upwardly leading lower slots SU from their lower edges UK, and in the transverse intermediate wall plates ZQ, slots SO are guided downwardly in a corresponding manner from the upper edges of these transverse partition plates. Also in the outer wall panels AL, AQ and the additional wall panels WZ corresponding slots are formed. The longitudinal or transverse wall panels, which cross each other in vertical projection, are plugged together with vertically aligned lower slots SU and upper slots SO. The slots are then at the intersections of the composite plates.

Fig. 4 zeigt zur weiteren Veranschaulichung der Erfindung lediglich eine Längs-Zwischenwand ZL und eine Quer-Zwischenwand ZQ, welche an einem Kreuzungspunkt KP ineinander gesteckt sind, so dass die Unterkanten beider Wandplatten in einer gemeinsamen unteren Begrenzungsebene liegen. Die Steckverbindung der beiden Wandplatten in dem Kreuzungspunkt KP gewährleistet, dass beide Wandplatten sowohl in Längsrichtung y als auch in Querrichtung x aneinander abgestützt sind. Fig. 4 shows to further illustrate the invention, only a longitudinal intermediate wall ZL and a transverse partition ZQ, which are inserted into each other at a crossing point KP, so that the lower edges of both wall panels lie in a common lower boundary plane. The plug-in connection of the two wall panels in the crossing point KP ensures that both wall panels are supported on one another both in the longitudinal direction y and in the transverse direction x.

Wesentlich für die Erfindung ist, dass an dem Kreuzungspunkt nicht nur ein seitliches Übergreifen der Längs-Zwischenwand ZL durch einen Schlitz SO der Quer-Zwischenwand ZQ und ein Übergreifen der Quer-Zwischenwand ZQ durch einen Schlitz SU der Längs-Zwischenwand ZL gegeben ist, sondern dass zusätzlich die Schlitzränder zumindest eines Schlitzes SU oder SO, vorzugsweise beider Schlitze durch Haltestrukturen an der von dem jeweiligen Schlitz umgriffenen Wandplatte zusätzlich in horizontaler Richtung parallel zu der umgriffenen Wandplatte abgestützt sind. Die Ränder eines nach oben offenen Schlitzes SO der Quer-Zwischenwand ZQ sind dadurch im Kreuzungspunkt KP zusätzlich in y-Richtung abgestützt, so dass keine Durchbiegung insbesondere der Oberkante der Quer-Zwischenwand ZQ im Bereich der Schlitzöffnung auftreten kann. In gleicher Weise sind die Ränder eines nach unten offenen Schlitzes SU der Längs-Zwischenwand ZL in dem Kreuzungspunkt KP durch Haltestrukturen an der Quer-Zwischenwand ZQ im Kreuzungspunkt gegen eine bei Verformung der Längs-Zwischenwand ZL eventuell mögliche Verschiebung insbesondere der Unterkante UK der Längs-Zwischenwand durch Haltestrukturen an der Quer-Zwischenwand abgestützt.Essential to the invention is that at the intersection not only a lateral overlap of the longitudinal intermediate wall ZL is given by a slot SO of the transverse partition ZQ and a spreading of the transverse partition ZQ through a slot SU of the longitudinal partition ZL, but that in addition the slot edges of at least one slot SU or SO, preferably both slots by holding structures on the wall plate encompassed by the respective slot additionally in the horizontal direction parallel to are supported by the embraced wall plate. The edges of an upwardly open slot SO of the transverse partition wall ZQ are thereby additionally supported in the y-direction at the point of intersection KP, so that no deflection, in particular of the upper edge of the transverse partition wall ZQ, can occur in the region of the slot opening. In the same way, the edges of a downwardly open slot SU of the longitudinal intermediate wall ZL in the crossing point KP by holding structures on the transverse partition wall ZQ at the crossing point against a possible deformation of the longitudinal intermediate wall ZL displacement in particular the lower edge of the longitudinal edge UK Supported intermediate wall by holding structures on the transverse partition wall.

Erfindungsgemäß sind wie in Fig. 4 skizziert solche Haltestrukturen an den Wandplatten durch Nuten in Verlängerung der Schlitze realisiert. In Verlängerung der nach unten offenen Schlitze SU in der Längs-Zwischenwand ZL sind obere Nuten NO als Vertiefungen gegen die umgebende Plattenfläche ausgebildet. Schlitzränder eines nach oben offenen Schlitzes SO der Quer-Zwischenwand ZQ liegen in einem Kreuzungspunkt KP in diesen oberen Nuten NO ein und verhindern so ein Ausweichen insbesondere der Oberkanten der Quer-Zwischenwand ZQ an dem Kreuzungspunkt KP in y-Richtung bei Auftreten hoher Kräfte. In gleicher Weise sind in Verlängerung eines nach oben offenen Schlitzes SO untere Nuten NU in der Quer-Zwischenwand ZQ vorgesehen und Ränder eines unteren Schlitzes SU der Längs-Zwischenwand ZL sind in unteren Nuten NU der Quer-Zwischenwand ZQ gegen ein Ausweichen in x-Richtung abgestützt.According to the invention as in Fig. 4 outlines such holding structures on the wall panels realized by grooves in extension of the slots. In extension of the downwardly open slots SU in the longitudinal intermediate wall ZL, upper grooves NO are formed as recesses against the surrounding plate surface. Slot edges of an upwardly open slot SO of the transverse partition wall ZQ are located in a crossing point KP in these upper grooves NO and thus prevent escaping in particular of the upper edges of the transverse partition wall ZQ at the crossing point KP in the y direction when high forces occur. Similarly, in the extension of an upwardly open slot SO, lower grooves NU are provided in the transverse partition ZQ, and edges of a lower slot SU of the longitudinal partition ZL are in lower grooves NU of the transverse partition ZQ against deflection in the x direction supported.

Die Abstützung ist insbesondere von Bedeutung bei den jeweiligen Schlitzöffnungen, da die Wandplatten hier den größten Biegemomenten bei von gegenüber liegenden Plattenseiten eventuell ungleich wirkenden Kräften auf die Wandplatten ausgesetzt sind. Die Schlitze sind daher vorteilhafterweise im Bereich ihrer Öffnungen um ein geringes Maß verengt gegenüber ihrem übrigen Verlauf. Bei den unteren Schlitzen SU sind im Bereich der Schlitzöffnung an der Unterkante UK der Längs-Zwischenwand Vorsprünge VU, bei den oberen Schlitzen SO in der Quer-Zwischenwand sind Vorsprünge VO ausgebildet, welche die Schlitzweite im Bereich der Schlitzöffnung geringfügig gegenüber dem übrigen Schlitzverlauf verengen. Eine solche besondere Gestaltung der Schlitze ist von besonderem Vorteil für die Querabstützung der besonders belasteten Plattenkanten im Bereich der Schlitzöffnungen einerseits und für ein einfaches Zusammenstecken sich überkreuzender Platten in den Kreuzungspunkten andererseits.The support is of particular importance in the respective slot openings, since the wall panels are here exposed to the greatest bending moments in opposing plate sides possibly unequal acting forces on the wall panels. The slots are therefore advantageously in the range their openings narrowed by a small amount compared to their remaining course. In the lower slots SU are in the region of the slot opening at the lower edge of the longitudinal partition wall wall projections VU, at the upper slots SO in the transverse partition projections VO are formed, which narrow the slot width in the region of the slot opening slightly compared to the rest of the slot. Such a special design of the slots is of particular advantage for the transverse support of the particularly loaded plate edges in the region of the slot openings on the one hand and for easy mating cross-plates in the crossing points on the other.

Von besonderem Vorteil ist ferner, dass in Verbindung mit der Befestigung von Maschinenflanschen FM an den in Längsrichtung y entgegen gesetzten Enden der Längs-Zwischenwandplatten ZL die Schlitze in den Längs-Zwischenwandplatten ZL nach unten offen sind. Durch die an den Maschinenflanschen FM an den Enden der Längs-Zwischenwandplatten nach unten gerichteten Haltekräfte und durch die von der rüttelbaren Unterlage während des Rüttelvorgangs auf die Unterkanten UK der Wandplatten ausgeübten, nach oben gerichteten Kräfte sind die Längs-Zwischenwandplatten Biegebeanspruchungen ausgesetzt, welche eine Aufwölbung der Längs-Zwischenwandplatten zwischen den Maschinenflanschen FM nach oben zu bewirken versuchen. Hierbei würden die unteren Schlitze verengt, was aber durch die Abstützung der Nutenränder der unteren Schlitze SU in den unteren Nuten NU der Quer-Zwischenwandplatte in y-Richtung weitgehend verhindert ist, so dass durch diese Wahl der Ausrichtung der Schlitzöffnungen in den Längs-Zwischenwandplatten nach unten die Biegesteifigkeit dieser Platten gegen die besonderen Biegebeanspruchungen in der Formmaschine während des Rüttelbetriebs erhöht ist. Die Quer-Zwischenwandplatten ZQ sind keinen nennenswerten Biegebeanspruchungen ausgesetzt, da auf die entgegen gesetzten Enden dieser Quer-Zwischenwandplatten keine besonderen, über die Eigensteifigkeit der Form hinausgehenden niederhaltenden Kräfte wirken.Of particular advantage is further that, in connection with the attachment of machine flanges FM at the opposite ends in the longitudinal direction y of the longitudinal intermediate wall plates ZL, the slots in the longitudinal partition plates ZL are downwardly open. By the upwardly directed forces on the machine flanges FM at the ends of the longitudinal diaphragm plates and by the upward forces exerted by the vibratory pad during the shaking action on the lower edges UK of the wall plates, the longitudinal diaphragm plates are subjected to bending stresses which are buckled try to bring the longitudinal partition plates between the machine flanges FM upwards. Here, the lower slots would be narrowed, but this is largely prevented by the support of the Nutenränder the lower slots SU in the lower grooves NU of the transverse partition plate in the y direction, so that by this choice of the orientation of the slot openings in the longitudinal partition plates after below the bending stiffness of these plates is increased against the particular bending stresses in the molding machine during the shaking operation. The transverse partition plates ZQ are not exposed to significant bending stresses, since on the opposite ends this transverse partition plates no special acting beyond the inherent rigidity of the mold depressing forces act.

Den besonderen und unterschiedlichen Biegebeanspruchungen der Längs- und der Quer-Zwischenwandplatten mit den Maschinenflanschen ausschließlich an den entgegen gesetzten Enden der Längs-Zwischenwandplatten wird auch dadurch vorteilhafterweise Rechnung getragen, dass die Schlitzlänge der unteren Schlitze SU in den Längs-Zwischenwandplatten geringer ist als die Länge der oberen Schlitze SO in den Quer-Zwischenwandplatten.The particular and different bending stresses of the longitudinal and the transverse partition plates with the machine flanges exclusively at the opposite ends of the longitudinal partition plates is also advantageously taken into account that the slot length of the lower slots SU in the longitudinal partition plates is less than the length the upper slots SO in the transverse partition plates.

In Fig. 5 ist eine Längs-Zwischenwandplatte ZL vereinzelt in verschiedenen Ansichten dargestellt, wobei Fig. 5 (A) eine Schrägansicht, Fig. 5 (B) eine Ansicht von unten auf die Unterkante und Fig. 5 (C) eine Ansicht in x-Richtung senkrecht zur Plattenfläche darstellt. Die einzelnen Konstruktionsmerkmale der Längs-Zwischenwandplatte ZL sind mit den auch bereits in Fig. 4 benutzten Bezugszeichen versehen, so dass auf die Erläuterungen zu Fig. 4 verwiesen wird. In Fig. 5 sind mit römischen Ziffern VII, VIII und IX Bereiche bezeichnet, welche in Fig. 7, Fig. 8 und Fig. 9 vergrößert dargestellt sind.In Fig. 5 is a longitudinal intermediate wall plate ZL singled shown in different views, wherein Fig. 5 (A) an oblique view, Fig. 5 (B) a bottom view of the bottom edge and Fig. 5 (C) represents a view in the x-direction perpendicular to the plate surface. The individual design features of the longitudinal intermediate wall plate ZL are with the already in Fig. 4 used reference numerals, so that the explanations to Fig. 4 is referenced. In Fig. 5 are designated by Roman numerals VII, VIII and IX areas, which in FIGS. 7, 8 and 9 are shown enlarged.

Fig. 6 zeigt in Schrägansicht eine vereinzelte Quer-Zwischenwandplatte ZQ, in welcher mit HO die Schlitzlänge des oberen Schlitzes SO bezeichnet ist. Die Schlitzlänge HO beträgt vorteilhafterweise wenigstens 55 %, insbesondere wenigstens 60 % der Gesamthöhe HW der Wandplatte. Die übrigen in Fig. 6 verwendeten Bezugszeichen sind in ihrer Kennzeichnung identisch mit der Bezugszeichenverwendung in den vorangegangenen Figuren, auf welche hierfür verwiesen wird. Fig. 6 shows an oblique view of an isolated transverse partition wall plate ZQ, in which HO denotes the slot length of the upper slot SO. The slot length HO is advantageously at least 55%, in particular at least 60% of the total height HW of the wall panel. The rest in Fig. 6 Reference numerals used in their identification are identical to the reference numerals used in the preceding figures, to which reference is made.

Fig. 7 zeigt als Ausschnitt VII aus Fig. 5 (A) in Schrägansicht einen unteren Schlitz SU in einer Längs-Zwischenwandplatte ZL. Fig. 8 zeigt den Ausschnitt mit Blickrichtung parallel zur x-Richtung. Der untere Schlitz SU ist zu Unterkante UK der Wandplatte hin offen. Im Bereich der Schlitzöffnung ist die in y-Richtung gemessene Schlitzbreite durch gegenüber liegende Nocken als Vorsprünge VU auf ein Breitenmaß DU verringert. Das Maß DU ist auf die in der unteren Nut NU der Quer-Zwischenwandplatte reduzierte Wandstärke abgestimmt. In einem von der unteren Schlitzöffnung beabstandeten Bereich ist der Schlitz SU um ein geringes Maß breiter ausgeführt. In z-Richtung in Verlängerung des Schlitzes SU ist eine obere Nut NO als Vertiefung gegen die Wandfläche der Längs-Zwischenwandplatte als eine Haltestruktur für die Schlitzränder einer in einem Kreuzungspunkt mit der Längs-Zwischenwandplatte ZL zusammengesteckten Quer-Zwischenwandplatte ausgebildet. Die Breite der Nut NO in y-Richtung ist vorzugsweise im wesentlichen gleich dem Nockenabstand DU. Die Breite BO der Nut NO ist auf die gegenüber der umgebenden Wandstärke der Quer-Zwischenwandplatte reduzierte Breite der oberen Nocken VO bei der Öffnung aus nach oben offenen Schlitzes SO abgestimmt. Fig. 7 shows as a section VII Fig. 5 (A) in oblique view, a lower slot SU in a longitudinal intermediate wall plate ZL. Fig. 8 shows the section with view parallel to the x-direction. The bottom slot SU is open to the lower edge UK of the wall plate. In the region of the slit opening, the slit width measured in the y direction is reduced to a width dimension DU by opposed cams as projections VU. The dimension DU is matched to the wall thickness reduced in the lower groove NU of the transverse partition panel. In a region spaced from the lower slot opening, the slot SU is made wider by a small amount. In the z-direction in extension of the slot SU, an upper groove NO is formed as a depression against the wall surface of the longitudinal partition wall plate as a support structure for the slit edges of a transverse partition wall plate mated at a crossing point with the longitudinal partition wall plate ZL. The width of the groove NO in the y-direction is preferably substantially equal to the cam spacing DU. The width BO of the groove NO is tuned to the width of the upper cam VO, which is reduced in relation to the surrounding wall thickness of the transverse partition wall plate, at the opening from the slot SO open at the top.

In Fig. 9 ist eine Ansicht von unten auf den unteren Schlitz SU der Längs-Zwischenwandplatte nach Fig. 8 und 9 dargestellt, aus welchem die gegenüber liegenden oberen Nuten NO als Vertiefungen gegen die Wandfläche und die von den Rändern des unteren Schlitzes beidseitig zur Schlitzmitte vorspringenden unteren Vorsprünge VU ersichtlich sind. Mit unterbrochener Linie ist eine in dieser Ansicht verdeckt liegende Anfasung FA an der Oberkante der Längs-Zwischenwandplatte angedeutet.In Fig. 9 is a bottom view of the lower slot SU of the longitudinal partition plate after 8 and 9 shown, from which the opposite upper grooves NO as depressions against the wall surface and the projecting from the edges of the lower slot on both sides of the slot center lower projections VU are visible. With a broken line a concealed in this view chamfer FA is indicated on the upper edge of the longitudinal partition plate.

Fig. 10 zeigt in Schrägansicht einen Ausschnitt aus einer Quer-Zwischenwandplatte mit einem oberen Schlitz SO. Auch in diesem Beispiel ist vorgesehen, dass der Schlitz SO bei der Schlitzöffnung an der Oberkante der Quer-Zwischenwandplatte durch zur Schlitzmitte hin gerichtete obere Vorsprünge VO verengt ist und von der Schlitzöffnung in Richtung des Schlitzgrundes nach den oberen Vorsprüngen VO in einem von der Schlitzöffnung beabstandeten Bereich sich wieder erweitert. Die untere Nut NU in der Quer-Zwischenwandplatte ist bis zu deren Oberkante fortgeführt, so dass die oberen Vorsprünge VO sich nicht in y-Richtung über die gesamte Plattendicke erstrekken, sondern an dieser Stelle in vertikaler Projektion ein gestufter Verlauf der Ränder des oberen Schlitzes auftritt. Fig. 10 shows an oblique view of a section of a transverse partition plate with an upper slot SO. Also in this example, it is provided that the slot SO is narrowed at the slot opening at the upper edge of the transverse partition panel by upper projections VO directed toward the slot center, and from the slot opening in the direction of the slot bottom after the upper protrusions VO in a region spaced from the slot opening area widens again. The lower groove NU in the transverse partition wall plate is continued to the upper edge thereof, so that the upper projections VO do not extend in the y-direction over the entire plate thickness, but at this point in vertical projection, a stepped course of the edges of the upper slot occurs ,

Fig. 11 zeigt als Schnittdarstellung in einer y-z-Schnittebene einen Ausschnitt aus einem Kreuzungspunkt mit einer Längs-Zwischenwandplatte ZL und einer mit dieser zusammengesteckten Quer-Zwischenwandplatte ZQ. Aus der Darstellung nach Fig. 11 ist insbesondere ersichtlich, dass der Abstand der Ränder des unteren Schlitzes SU von der Quer-Zwischenwandplatte in y-richtung in einem von der unteren Schlitzöffnung des unteren Schlitzes SU beabstandeten Bereich größer ist als in einem Bereich bei der unteren Schlitzöffnung, wo die Ränder des unteren Schlitzes über untere Vorsprünge VU zur Schlitzmitte hin vorspringend ausgebildet sind. Dies ist insbesondere von Vorteil für das Zusammenstecken der Wandplatten im Kreuzungspunkt. Dies ist in einem in Fig. 15 dargestellten Ausschnitt C aus Fig. 11 weiter veranschaulicht. In dem in Fig. 15 dargestellten Ausschnitt ist zwischen den unteren Vorsprüngen VU und der Quer-Zwischenwandplatte ZQ noch ein schmaler Spalt angedeutet. Die unteren Vorsprünge VU können aber auch unmittelbar an der Quer-Zwischenwandplatte ZQ in y-Richtung anliegen. Fig. 11 shows as a sectional view in a yz-sectional plane a section of a crossing point with a longitudinal intermediate wall plate ZL and a mating with this transverse partition plate ZQ. From the illustration to Fig. 11 In particular, it can be seen that the spacing of the edges of the lower slot SU from the transverse baffle plate in the y-direction is greater in a region spaced from the lower slot opening of the lower slot SU than in an area at the lower slot opening where the edges of the lower Slot over lower projections VU are formed projecting towards the slot center. This is particularly advantageous for the mating of the wall panels in the crossing point. This is in an in Fig. 15 shown section C from Fig. 11 further illustrated. In the in Fig. 15 shown section between the lower projections VU and the transverse partition plate ZQ is still a narrow gap indicated. However, the lower projections VU can also rest directly on the transverse partition plate ZQ in the y direction.

Fig. 12 zeigt eine Ansicht auf einen Kreuzungspunkt von unten. Aus dieser Ansicht wird anschaulich, wie die Ränder des unteren Schlitzes SU der Längs-Zwischenwandplatte ZL in die untere Nut NU der Quer-Zwischenwandplatte ZQ eingreifen und wie die Ränder des Schlitzes SU an den Seitenkanten der unteren Nut in x-Richtung formschlüssig abgestützt sind. Eine zuverlässige Abstützung ist insbesondere im Bereich der unteren Vorsprünge VU durch deren tieferes Eingreifen in die Nuten NU gegeben. In Fig. 12 ist mit XI - XI die Schnittebene der Ansicht nach Fig. 11 bezeichnet, wobei ersichtlich ist, dass die in Fig. 11 für die Quer-Zwischenwandplatte ZQ schraffiert dargestellte Schnittfläche nicht die volle Wandstärke der Quer-Zwischenwandplatte ZQ darstellt, sondern die im Bereich der unteren Nuten NU verringerte Wandstärke. Fig. 12 shows a view on a crossing point from below. From this view, it is clear how the edges of the lower slot SU of the longitudinal partition plate ZL engage in the lower groove NU of the transverse partition plate ZQ and how the edges of the slot SU are positively supported on the side edges of the lower groove in the x direction. A reliable support is in particular in the region of the lower projections VU by the deeper Intervention in the grooves NU given. In Fig. 12 with XI - XI is the cutting plane in the view Fig. 11 indicating that the in Fig. 11 hatched for the transverse partition wall plate ZQ sectional area is not the full wall thickness of the transverse partition wall plate ZQ, but the reduced in the region of the lower grooves NU wall thickness.

Fig. 13 zeigt eine Ansicht vertikal von oben auf einen Kreuzungspunkt und veranschaulicht den in diesem Bereich gestuften Verlauf der Ränder des oberen Schlitzes SO mit den nicht die vollständige Wanddicke der Quer-Zwischenwandplatte ZQ einnehmenden oberen Vorsprüngen VO. Der obere Schlitz SO kann in einem von seiner Schlitzöffnung in Richtung des Schlitzgrundes beabstandeten Bereich in die obere Nut NO eingreifend ausgebildet sein, wobei die Eingriffstiefe in diesem beabstandeten Bereich vorteilhafterweise geringer ist als die Eingriffstiefe der Vorsprünge VO in die Nut NO. Der obere Schlitz SO kann aber den in Fig. 13 veranschaulichten gestuften Verlauf auch lediglich im Bereich der oberen Vorsprünge VO besitzen und in einem davon in Richtung des Schlitzgrundes beabstandeten Bereich auf die vollständige Wanddicke der Längs-Zwischenwandplatte ZL ausgefräst sein, so dass eine Querabstützung der Oberkante der Quer-Zwischenwandplatte ZQ in y-Richtung ausschließlich durch die oberen Vorsprünge VO in der oberen Nut NO gegeben ist. Fig. 13 shows a view vertically from above to a crossing point and illustrates the graded in this area the course of the edges of the upper slot SO with the not the full wall thickness of the transverse partition plate ZQ engaging upper projections VO. The upper slot SO may be formed engaging in the upper groove NO in an area spaced from its slot opening in the direction of the slot bottom, the engagement depth in this spaced area being advantageously less than the engagement depth of the projections VO in the groove NO. The upper slot SO can but the in Fig. 13 also have graduated course only in the region of the upper projections VO and in one of them spaced in the direction of the slot bottom area be milled to the full wall thickness of the longitudinal intermediate wall plate ZL, so that a transverse support of the upper edge of the transverse partition plate ZQ in the y direction exclusively is given by the upper projections VO in the upper groove NO.

Die Querabstützung der Ränder der Schlitze in den Zwischenwandplatten im Bereich der jeweiligen Schlitzöffnung ist aufgrund der Kraftverhältnisse besonders vorteilhaft, aber nicht zwingend. Es kann auch eine Querabstützung über die gesamte Länge der Schlitze oder erst von den jeweiligen Schlitzöffnungen in Richtung des Schlitzgrundes beabstandet vorgesehen sein. Fig. 14 zeigt einen vergrößerten Ausschnitt C aus Fig. 11, in welchem die Gestaltung des Schlitzgrundes des unteren Schlitzes SU vergrößert dargestellt ist. Insbesondere gehen die Seitenwände des unteren Schlitzes SU im Bereich von dessen die Einschiebtiefe beim Zusammenstecken von Längs- und Querzwischenwandplatten begrenzenden Schlitzgrundes GU über Rundungen FR in diesen über, wodurch das Auftreten von hohen Kerbspannungen in diesem Bereich zuverlässig vermieden wird. Der Bereich des oberen Schlitzes SO im Bereich von dessen Schlitzgrund GO ist vorteilhafterweise in gleicher Art ausgeführt.The transverse support of the edges of the slots in the partition plates in the region of the respective slot opening is particularly advantageous, but not mandatory, due to the force relationships. It may also be provided a distance support over the entire length of the slots or only spaced from the respective slot openings in the direction of the slot bottom. Fig. 14 shows an enlarged section C from Fig. 11 in which the design of the slot bottom of the lower slot SU is shown enlarged. In particular, the side walls of the lower slot SU pass over the slots FR in the region of the slot depth GU bounding the depth of insertion during the mating of longitudinal and transverse partition plates, via roundings FR, thereby reliably avoiding the occurrence of high notch stresses in this area. The area of the upper slot SO in the region of its slot bottom GO is advantageously designed in the same way.

Fig. 16 zeigt eine weitere Ausführung einer Form mit der erfindungsgemäßen Verbindung von Längs- und Querzwischenwandplatten, wobei bei der in Fig. 16 gezeigten Darstellung die Deckbleche und die Kernhalteranordnung weg gelassen sind. Fig. 17 zeigt einen vergrößerten Ausschnitt aus Fig. 16. Bei der in Fig. 16 dargestellten Form sind die in Querrichtung x verlaufenden Quer-Zwischenwandplatten mit über die Längs-Außenwandplatten AL überstehenden Plattenabschnitten UQ über Winkelverbinder VW mit den Längs-Außenwandplatten AL verbunden. Die Winkelverbinder VW sind sowohl mit den überstehenden Abschnitten UQ als auch mit den Außenseiten der Außenwandplatten AL über zwei vertikale Verbinderschenkel verschraubt. Vorteilhafterweise können die Winkelverbinder VW wie dargestellt einen zusätzlichen horizontalen Verbinderschenkel aufweisen, welcher zur Verschraubung der Deckbleche auf der Form dient. Die in Querrichtung über die Außenwandplatte AL hinaus stehenden Plattenabschnitte der Quer-Außenwandplatten AQ können mit denselben Winkelverbindern mit den Längs-Außenwandplatten AL verbunden sein. Über zusätzliche Halteelemente HL, welche formschlüssig in Vertiefungen der Außenfläche der Außenwandplatten AL eingesetzt und mit den Außenwandplatten AL verschraubt sind, können die über die Außenwandplatten überstehenden Abschnitte von Kernhalterleisten vertikal nach unten gegen die Außenwandplatten verspannt werden. Fig. 16 shows a further embodiment of a mold with the inventive compound of longitudinal and transverse partition plates, wherein the in Fig. 16 As shown, the cover plates and the core holder assembly are omitted. Fig. 17 shows an enlarged section Fig. 16 , At the in Fig. 16 The transverse intermediate wall panels extending in the transverse direction x are connected to the longitudinal outer wall panels AL via plate sections UQ protruding beyond the longitudinal outer wall panels AL via angle connectors VW. The angle connectors VW are bolted to both the protruding portions UQ and the outsides of the outer wall panels AL via two vertical connector legs. Advantageously, as shown, the angle connectors VW can have an additional horizontal connector leg, which serves to screw the cover plates onto the mold. The plate portions of the transverse outer wall panels AQ transversely beyond the outer wall panel AL may be connected to the longitudinal outer wall panels AL by the same angle connectors. About additional holding elements HL, which are positively inserted into recesses of the outer surface of the outer wall panels AL and bolted to the outer wall panels AL, which can over the outer wall panels projecting portions of core holder strips vertically down against the outer wall plates are braced.

An den Querseiten der Form sind weitere Verbindungswinkel VF vorgesehen, mittels welcher die Maschinenflanschleisten FM an den Längs-Zwischenwandplatten und Längs-Außenwandplatten befestigt sind. Die Winkelverbinder VF können vorteilhafterweise wiederum zugleich zur Verschraubung der Quer-Deckbleche DQ oder DL auf der Form dienen.On the transverse sides of the mold further connection angle VF are provided, by means of which the machine flange strips FM are attached to the longitudinal intermediate wall panels and longitudinal outer wall panels. The angle connectors VF can advantageously also serve at the same time for screwing the transverse cover plates DQ or DL on the mold.

Claims (24)

  1. Mould for the production of moulded concrete blocks, comprising a plurality of mould cavities (FN) which are arranged next to one another and form a block field, which cavities are separated from one another by means of partition walls which are continuous between the upper side and the lower side of the mould cavities, wherein the partition walls are formed from partition wall panels (ZL, ZQ) which pass through the entire block field in one piece and intersect one another at intersection points (KP), wherein two intersecting partition wall panels (ZL, ZQ) are plugged into one another by way of slots (SU, SO) oriented in opposite directions, wherein holding structures (NU) are formed at least on a first of the two partition wall panels (ZQ) intersecting at an intersection point, as an extension of the first slot (SO) formed in this first partition wall panel, which holding structures positively fix the edges of the second slot (SU), which is formed in the second of the two partition wall panels (ZL), in a direction (y) parallel to the wall surface of the first partition wall panel (ZQ) and transversely to the direction (z) of the first and second slot (SU, SO), characterized in that the holding structures are formed as depressions (NU) with respect to the surrounding wall surfaces of the partition wall panels (ZL, ZQ), the depressions are configured as grooves (NU) and the inner surfaces of the second slot (SU) have, in a portion spaced apart from the slot opening, a greater spacing from the bottom of the grooves (NU) than at the slot opening.
  2. Mould according to Claim 1, characterized in that the grooves (NU) are configured with side edges perpendicular to the surrounding wall surface.
  3. Mould according to Claim 1 or 2, characterized in that the groove width is constant and the second partition wall panel (ZL) lies with its entire wall thickness in the grooves (NU) at the edges of the second slot (SU).
  4. Mould according to Claim 1, characterized in that the second slot (SU) is narrowed at the slot opening with respect to the spaced-apart portion.
  5. Mould according to one of Claims 1 to 4, characterized in that second holding structures (NO) for transversely supporting the edges of the first slot (SO) are formed on the second partition wall panel (ZL).
  6. Mould according to one of Claims 1 to 5, characterized in that the first slot (SO) and/or the second slot (SU) have roundings (FR) towards the slot side walls at the slot bottom lying opposite the slot opening.
  7. Mould according to one of Claims 1 to 6, characterized in that the outer walls of the block field are configured as outer wall panels (AL, AQ) at least on two opposite sides.
  8. Mould according to Claim 7, characterized in that the partition wall panels (ZL, ZQ) protrude laterally beyond the block field by way of projections (UL, ZU) so as to intersect the outer wall panels (AL, AQ).
  9. Mould according to Claim 6 or 7, characterized in that the block field is configured to be substantially rectangular with edges in a longitudinal direction and a transverse direction and is delimited by two pairs of outer wall panels (AL, AQ) oriented at right angles to one another.
  10. Mould according to Claim 9, characterized in that the outer wall panels (AL, AQ) extend so as to intersect one another at corner points.
  11. Mould according to one of Claims 8 to 10, characterized in that the projections (UQ) of the partition wall panels (ZQ) are connected, in particular screwed, to the outer surfaces of the outer wall panels (AL) by means of first angle connectors (VW).
  12. Mould according to Claim 11, characterized in that the first angle connectors (VW) form only connections between projections (UQ) of partition wall panels (ZQ) extending in the transverse direction and outer wall panels (AL) extending in the longitudinal direction.
  13. Mould according to one of Claims 7 to 12, characterized in that the block field is surrounded at its surface by metal cover sheets (DQ, DL) and the metal cover sheets (DQ, DL) are connected, in particular screwed, to the partition wall panels (ZL) or the outer wall panels (AQ) via second angle connectors (VF).
  14. Mould according to Claim 13, characterized in that at least part of the second angle connectors (VF) simultaneously forms first angle connectors (VW).
  15. Mould according to one of Claims 7 to 14, characterized in that counter-holders for core holder strips (KL) of a mould core arrangement are arranged on the outer surfaces of at least two mutually opposite outer wall panels.
  16. Mould according to Claim 15, characterized in that the counter-holders are vertically braced by ends of core holder strips that protrude beyond the outer wall panels.
  17. Mould according to Claim 15 or 16, characterized in that the counter-holders are screwed onto the outer surfaces of the outer wall panels.
  18. Mould according to Claim 15 or 16, characterized in that the counter-holders are held on projections of the partition wall panels (ZQ).
  19. Mould according to Claim 18, characterized in that the core holder strips (KL) lie in recesses of the outer wall panels (AL) and a vertical connection of the outer wall panels (AL) to the partition wall panels which intersect them is combined with bracing of the ends of the core holder strips (KL).
  20. Mould according to one of Claims 1 to 19, characterized in that flange arrangements designed to clamp the mould into a moulding machine are in each case provided on two mutually opposite transverse sides.
  21. Mould according to Claim 20, characterized in that the slots (SU) are open to the bottom in the partition wall panels (ZL) which extend in the longitudinal direction between the transverse sides.
  22. Mould according to Claim 21, characterized in that the height of the slots (SU) which are open to the bottom is at most 45%, in particular at most 40%, of the height of the partition wall panels (ZL).
  23. Mould according to one of Claims 7 to 22, characterized in that additional panels (WZ) are arranged on at least two mutually opposite sides so as to be offset outwardly spaced apart from the outer wall panels (AQ), which additional panels form empty fields with respect to the outer wall panels (AQ).
  24. Mould according to Claim 23, characterized in that the additional panels (WZ) are welded to partition wall panels (ZL) and/or outer wall panels (AL) which intersect them.
EP11817270.9A 2010-11-23 2011-11-09 Mold for producing molded concrete blocks Active EP2643133B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201130793A SI2643133T1 (en) 2010-11-23 2011-11-09 Mold for producing molded concrete blocks
PL11817270T PL2643133T3 (en) 2010-11-23 2011-11-09 Mold for producing molded concrete blocks
HRP20160412TT HRP20160412T1 (en) 2010-11-23 2016-04-18 Mold for producing molded concrete blocks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010060742A DE102010060742A1 (en) 2010-11-23 2010-11-23 Mold for the production of concrete blocks
PCT/EP2011/069774 WO2012069315A2 (en) 2010-11-23 2011-11-09 Mold for producing molded concrete blocks

Publications (2)

Publication Number Publication Date
EP2643133A2 EP2643133A2 (en) 2013-10-02
EP2643133B1 true EP2643133B1 (en) 2016-02-03

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EP11817270.9A Active EP2643133B1 (en) 2010-11-23 2011-11-09 Mold for producing molded concrete blocks

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US (1) US9370873B2 (en)
EP (1) EP2643133B1 (en)
CA (1) CA2819339C (en)
DE (1) DE102010060742A1 (en)
DK (1) DK2643133T3 (en)
HR (1) HRP20160412T1 (en)
HU (1) HUE028861T2 (en)
PL (1) PL2643133T3 (en)
RU (1) RU2578069C2 (en)
SI (1) SI2643133T1 (en)
WO (1) WO2012069315A2 (en)

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Also Published As

Publication number Publication date
EP2643133A2 (en) 2013-10-02
US9370873B2 (en) 2016-06-21
CA2819339C (en) 2016-01-26
WO2012069315A3 (en) 2012-07-26
WO2012069315A2 (en) 2012-05-31
RU2578069C2 (en) 2016-03-20
RU2013128475A (en) 2014-12-27
SI2643133T1 (en) 2016-10-28
DE102010060742A1 (en) 2012-05-24
PL2643133T3 (en) 2016-07-29
CA2819339A1 (en) 2012-05-31
HUE028861T2 (en) 2017-01-30
HRP20160412T1 (en) 2016-05-20
DK2643133T3 (en) 2016-04-25
US20130234003A1 (en) 2013-09-12

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