EP1372921B1 - Mould for producing pre-cast concrete units - Google Patents

Abstract

A mold for producing concrete articles having a mold bottom part that includes a molded chamber block having a substantially uniform thickness and side parts attached to the molding chamber block by fasteners. The molding chamber block has molding chambers located in an inner region and cutouts located on an edge region. The cutouts form intermediate webs of approximately uniform width, and at least a portion of the cutouts are undercut slots having lateral openings. The fasteners attach the side parts to the molding chamber block via the undercut slots of the cutouts.

Description

The invention relates to a mold for the production of concrete bodies according to the preamble of claim 1.

Such forms are used as forms of change in molding machines, so-called stone pavers. They consist of a top mold with punches and a lower mold part, which consists of a mold chamber block and side parts, the stamp fit into chambers formed in the mold chamber block. The lower mold part lies on a shaping table, so that the chambers are closed at the bottom for filling and subsequent compression. The compression takes place by vibrations, which are transmitted by a vibrator on the molding chamber block on the concrete body. By lifting the lower mold part with unchanged position of the stamp, the molded body formed are removed from the mold. The side panels serve to hold and guide the mold chamber block and as rails for the filling car.

Moldings are known from the prior art, which consist of a mold chamber block and laterally screwed with these side parts. The molding chamber block has an inner region with molding chambers and an edge region which partially has recesses. A disadvantage of such lower mold parts is that they can only be cured to a limited extent, since in the mold chamber block in this case build up large voltages. Furthermore, for the screwing of the side parts with the molding chamber block elaborate manufacturing steps, such as drilling and tapping required.

It was further discovered by experiments that the reverberation of the mold after shutting off the vibrator leads to impairment of the quality of the surface of the concrete body resting against the mold.

Furthermore, from DE 295 15 835 U1 1 a mold for the production of concrete bodies is known, which has a lower mold part, which consists of a mold chamber block and with this screwed side parts, wherein the mold chamber block has an inner region with mold chambers and an edge region on which at least Partial recesses are provided, wherein the recesses in the edge region for attachment of the side parts in plan view are at least partially formed as an undercut groove with a lateral opening.

The invention has for its object to develop a mold for the production of concrete bodies, which is suitable for curing and is rationally manufacturable. Furthermore, the invention has for its object to develop a mold for the production of improved concrete body, in which in particular the manufacturing process is positively influenced by the mold. Both tasks are aimed at increasing the life of the mold and improving the quality of the concrete bodies produced by the mold.

This object is achieved on the basis of the features of the preamble of claim 1 according to the invention by the characterizing features of claim 1. In the dependent claims advantageous and expedient developments are given.

The mold according to the invention for the production of concrete bodies has a mold bottom with a mold chamber block with a substantially constant over the length and the width of the mold chamber block thickness or height, wherein the edge regions of the mold chamber block have recesses are formed by the intermediate webs with approximately constant web width and the recesses or the intermediate webs are used for fastening side parts, wherein the recesses in plan view are at least partially formed as an undercut groove with lateral opening to the edge region and a screwing of the side parts takes place transversely to the course of the undercut groove. This is formed in the edge region of the mold chamber block an open-edged structure, which counteracts the build-up of stresses or prevents the build-up of annular stresses through the lateral openings. Furthermore, such a construction of the molding chamber block allows the fastening of side parts by standard components, such as screw and sliding block, without the need for drilling or tapping on the molding chamber block. The orientation of the screwing of the side parts transversely to the course of the groove allows a high load on the side parts, as they are pressed at large contact surfaces of the screw on the edge region of the molding chamber block. Undercut grooves are grooves, which have on the groove bottom a width which is greater than the width of the groove opening, so that the groove seen in cross-section wedge, stair or arcuate to the slot opening.

By a screwing and / or bracing of the side parts via the groove with the molding chamber block and optionally an additional welding of side part and mold chamber block results in a particularly high-load connection.

Furthermore, it is advantageous to center the side part and the molding chamber block via pins and / or contact surfaces to each other. As a result, the tolerances for the screw or tension can be chosen coarser, since these are not decisive for the alignment of the side parts of the molding chamber block.

Furthermore, it is advantageous to form the recess designed in particular as a T-slot or L-slot with a cavity which is square and / or rounded in cross-section and a neck which opens it to the surroundings, wherein the cavity and the neck are preferably designed as free-running. This makes it possible the cutting combustion process, which is for the formation of the molding chambers in the inner region of the Formkammerblocks is used to use also for the formation of the edge region of the molding chamber block. This means that the inner area and the edge area of the molding chamber block can be machined on a machine by the same method.

An advantageous embodiment of the subject invention provides to arrange the grooves or the recesses at regular intervals to each other in the edge region of the molding chamber block. As a result, webs of the same width are formed between the recesses. These cause the entire edge area with respect to the hardening process shows a uniform behavior. In particular, the use of cross-sectionally T-shaped or L-shaped grooves is provided.

According to a particular embodiment of the subject invention, it is provided to form the undercut grooves with different neck lengths and in particular to arrange grooves with different neck length alternately side by side. This makes it possible to form a wider edge region with webs of uniform width.

By using a threaded rod with wedge clamp as a fastener particularly fast attachment of a side part of the mold chamber block is possible.

Through a combination of molding chamber block and side part by means of clamping voltages and / or combination of eyebolt and wedge screw, these components can be particularly fast interconnect or solve each other.

According to the invention, at least one of the recesses located in the edge region of the mold is provided with a damping element Fill filler. As a result, the elaborate welding of a recess protecting the recess against the ingress of concrete is saved and in particular a heat distortion occurring during welding is avoided. Furthermore, a filled recess acts during operation of the vibrator and after switching off the vibrator on the shape, so that in particular the vibrations of the mold after switching off the vibrator decay quickly and thus the formation of horizontally extending cracks on the side surfaces of the concrete body, which abut the form, is largely avoided. Thus, the lateral surfaces of the concrete body are improved technically and visually by the damping.

According to the invention, it is particularly intended to be used as a filler polymer concrete. Polymer concrete consists essentially of a plastic mass, in which, for example, gravel and / or sand is embedded. This material is well suited to the loads occurring on the mold, as it is particularly resistant to chemical and mechanical stress.

Furthermore, it is provided to make the opening cross-section of the recess irregular or deviating from a simple geometric shape. By narrowing and / or widening in the cross-section of the recess, it is possible in addition to the pressure loads absorbable by each opening to transmit tensile loads on the filling material. For example, in a dog-bone-shaped opening cross-section of the recess in the longitudinal direction of the dog bone tensile stresses can be transmitted. That is, the filling material unfolds in such a form by the absorption and damping of tensile loads in at least one direction an additional effect, without requiring additional space is required. This leads in particular to a stronger attenuation of Bending vibrations, since then regardless of the bending direction almost the entire filler acts damping, as with each bend simultaneously tensile and compressive loads occur.

According to one embodiment, the invention provides to connect walls of the recess by at least one anchor with at least two anchor points. Such an interconnection of walls makes it possible to keep the shape stable even with a large number of recesses and / or in the case of large-volume recesses and to selectively concentrate or guide loads and vibrations by means of the armature.

According to the invention, it is provided to fill all annularly closed recesses with the filler. As a result, a maximum damping of the vibrations in the mold is possible.

Advantageously, the invention provides to orient the recess in the mold chamber block in any spatial direction. This makes it possible to act on all present in the mold chamber block vibrations or bending, tensile, compressive and torsional loads or to influence specific vibration directions or loads targeted.

Furthermore, the invention provides for connecting at least two recesses by at least one connecting space and to design this in particular as a bore. As a result, it is possible in a simple manner to couple the damping elements together or to network them into a functional composite.

According to the invention, it is provided to fill the connection space with filling material. As a result, an optimal interaction of the filled recesses is possible.

It is also provided to arrange the recess in a corner region of the molding chamber block in order to prevent a convergence of vibrations here.

Finally, the invention provides for inserting a prefabricated from filler insert into the recess or paste. This makes it possible to manufacture the use rational

Figur 1

eine Draufsicht auf einen Formkammerblock,

Figur 2

den in Figur 1 gezeigten Formkammerblock mit angeschraubten Seitenteilen,

Figur 3

eine Seitenansicht des in Figur 2 dargestellten Formunterteils aus der Pfeilrichtung III,

Figur 4

einen Schnitt durch das in Figur 2 dargestellte Formunterteil entlang der Schnittlinie IV-IV,

Figur 5

einen Schnitt durch das in Figur 2 dargestellte Formunterteil entlang der Schnittlinie V-V,

Figur 6

eine Seitenansicht des in Figur 2 dargestellten Formunterteils aus der Pfeilrichtung VI,

Figur 7

einen Schnitt durch das in Figur 2 dargestellte Formunterteil entlang der Schnittlinie VII-VII,

Figur 8

eine mit VIII gekennzeichnete Detailansicht des in Figur 2 dargestellten Formunterteils,

Figur 9

eine erste Variante eines Formkammerblocks,

Figur 10

eine zweite Variante eines Formkammerblocks,

Figur 11

eine dritte Variante eines Formkammernblocks,

Figur 12

eine Drauf sicht auf die Querseite einer vierten Variante eines Formkammernblocks,

Figur 13

eine perspektivische Teilansicht eines Formkammerblocks mit unterschiedlich gestalteten Ausnehmungen,

Figur 14

eine Draufsicht auf den in Figur 13 gezeigten Formkammerblock,

Figur 15

einen Schnitt durch den in Figur 14 dargestellten Formkammerblock entlang der Schnittlinie XV-XV,

Figur 16

einen Schnitt durch den in Figur 14 dargestellten Formkammerblock entlang der Schnittlinie XVI-XVI,

Figur 17

einen Schnitt durch den in Figur 14 dargestellten Formkammerblock entlang der Schnittlinie XVII-XVII,

Figur 18a-18h

schematisch dargestellte Draufsichten auf Wandungsverläufe der Ausnehmungen,

Figur 19

eine Seitenansicht eines weiteren Formkammerblocks mit schräg verlaufenden Ausnehmungen,

Figur 20

ein Draufsicht auf einen weiteren Formkammerblock und

Figur 21

ein Draufsicht auf einen weiteren Formkammerblock mit Verbindungsräumen zwischen den Ausnehmungen.

Further details of the invention are described in the drawing with reference to schematically illustrated embodiments. Hereby shows:

FIG. 1

a plan view of a molding chamber block,

FIG. 2

the molding chamber block shown in Figure 1 with bolted side panels,

FIG. 3

a side view of the lower mold part shown in Figure 2 from the direction of the arrow III,

FIG. 4

2 a section through the lower part of the mold shown in FIG. 2 along the section line IV-IV,

FIG. 5

3 shows a section through the lower mold part shown in FIG. 2 along the section line VV,

FIG. 6

a side view of the mold part shown in Figure 2 from the direction of the arrow VI,

FIG. 7

3 a section through the lower part of the mold shown in FIG. 2 along the section line VII-VII,

FIG. 8

a detailed view marked VIII of the molded part shown in Figure 2,

FIG. 9

a first variant of a molding chamber block,

FIG. 10

a second variant of a molding chamber block,

FIG. 11

a third variant of a molding chamber block,

FIG. 12

a top view on the transverse side of a fourth variant of a molding chamber block,

FIG. 13

a perspective partial view of a molding chamber block with differently shaped recesses,

FIG. 14

a plan view of the molding chamber block shown in Figure 13,

FIG. 15

3 a section through the molding chamber block illustrated in FIG. 14 along the section line XV-XV,

FIG. 16

3 a section through the molding chamber block illustrated in FIG. 14 along the section line XVI-XVI, FIG.

FIG. 17

3 a section through the molding chamber block illustrated in FIG. 14 along the section line XVII-XVII,

Figure 18a-18h

schematically illustrated plan views of the course of the recesses,

FIG. 19

a side view of another mold chamber block with inclined recesses,

FIG. 20

a plan view of another mold chamber block and

FIG. 21

a plan view of another mold chamber block with connecting spaces between the recesses.

FIG. 1 shows a molding chamber block 1 which, together with side parts 2, forms a mold bottom 3 (see also FIG. 2). The molding chamber block 1 has an inner region 4 and a peripheral edge region 5. In the inner region 4 35 recesses or openings 6 are arranged, which serve as mold chambers 7. The molding chambers 7 break through the molding chamber block 1 in a direction perpendicular to the plane of the drawing. The molding chambers 7 have a contour 8, which corresponds to the contour of concrete body or paving stones, not shown, which can be formed in the molding chamber block 1. The edge region 5 is composed of two opposite longitudinal edges 9, 10 and two opposite transverse edges 11, 12 together. In the edge region 5 recesses 13 are formed circumferentially around the inner region, which are partially closed by the cover 14. The cover 14 prevent the entry of filling material into the recesses 13. Furthermore, the molding chamber block 1 at the transverse edges 11, 12 recesses 13th which are formed as undercut grooves 15 and extend parallel to the apertures 6. In the molding chamber block 1 shown in FIG. 1, the grooves 15 are designed as T-slots 16. The T-slots 16 extend from an upper side 17 to an underside 18 of the molding chamber block 1 and have lateral openings 20 towards transverse sides 19 of the molding chamber block 1. Through the grooves 15 is formed on the transverse edges 11, 12 to the transverse sides 19 through an open-edged structure 21, which forms a web structure 22 in the plan view, if the cover 14 is disregarded. In this case, the webs 24 formed between an environment 23 and grooves 15 or recesses 13 have approximately the same web width S. The web structure 22 extends essentially over a width B of the molding chamber block 1. According to an embodiment variant not shown, the molding chamber block 1 also has grooves in the region of longitudinal sides 25, 26, in particular over a length L of the molding chamber block 1, which produce a structure open to the edge.

FIG. 2 shows the molding chamber block 1 shown in FIG. 1 together with the bolted-on side parts 2. The mold chamber block 1 and the side parts 2 together form the lower mold part 3, which together with stamps, not shown, which are adapted to the mold chambers 7, forms a mold for the production of moldings, in particular concrete bodies. The side parts 2 and the left side part 2 a and the right side part 2 b are bolted to the molding chamber block 1 via the T-grooves 16. In the grooves 16 nut blocks 27 and nuts 28 are arranged, which have a threaded bore 29 and serve as an abutment for screws 30 (see also Figure 8). Furthermore, the side parts 2 are connected to the molding chamber block 1 via pins 31 which serve to center the side parts 2 on the molding chamber block 1 (see also FIG. 7).

FIG. 3 shows a side view of the lower mold part 3 shown in FIG. 2 from the direction of the arrow III. In this view, the L-shaped cross section of the side parts 2 can be seen. These are constructed in several parts and consist of a connection profile 32, a wear strip 33 placed thereon and a cantilever 34. In this case, the wear strip 33 is screwed to the connection profile 32 and can optionally be underlaid. Furthermore, the side view shows a substantially constant over the entire length L of the molding chamber block 1 thickness D of the molding chamber block. 1

FIG. 4 shows a section through the lower mold part 3 along the section line IV-IV shown in FIG. The sliding block 27 is formed as a groove strip 35 with two threaded holes 29 lying one above the other, with only the lower threaded hole 29 being used in the area of the extension arm 34. In Figure 4, the groove 16 is covered as well as in Figure 2 by a cover 36 to the top 17 of the mold chamber block 1 out.

FIG. 5 shows a section through the lower mold part 3 shown in FIG. 2 along the section line V-V. This view shows a screw 37, which connects the wear strip 33 with the connection profile 32. Furthermore, the screwing of the connection profile 32 is represented by two superimposed screws 30 with the molding chamber block 1 via the groove strip 35.

FIG. 6 shows a side view of the lower mold part 3 shown in FIG. 2 from the direction of the arrow VI. Here, the arrangement of the individual fittings can be seen.

Referring to Figures 7 and 8, reference is made to the description of Figure 2.

FIG. 9 shows a molding chamber block 40 which has recesses 13 at transverse edges 11, 12 which are formed as undercut grooves 15 and have lateral openings 20 towards lateral sides 19. The grooves 15 have cavities 41, which open via necks 42 to the transverse sides 19. The grooves 15 are designed as freerunctions 43, which can be cut by a combustion jet extending perpendicularly to the plane of the drawing as well as by recesses 13 and molded combs 7 arranged at longitudinal edges 9, 10.

FIG. 10 shows a molding chamber block 50 which has grooves 15 which are undercut towards a transverse side 19 and which have necks 42 with different neck lengths l ₁ and l ₂ . Furthermore, the grooves 15 have groove bottoms 51 which have a width b ₂ and groove openings 52 which have a width b ₁ .

FIG. 11 shows a molding chamber block 60 which has recesses 13 towards a transverse side 19, two of which are formed as undercut grooves 15. These have a groove bottom 51 with a width b ₂ and a slot opening 52 with a width b ₁ , b _{2 being} larger than b ₁ . The undercut grooves 15 are suitable for the use of sliding blocks 27 (shown in phantom) for attachment not shown side panels.

Figure 12 shows a plan view of a transverse side 19 of a molding chamber block 70. The molding chamber block 70 has three undercut grooves 15 toward the transverse side, with the left and right undercut grooves 15 being disposed obliquely to a vertical 71, thus slipping one from above prevent hinged side part, if the screws are not yet braced.

FIG. 13 shows a perspective partial view of a molding chamber block 1 with differently shaped Recesses 13. The molding chamber block 1, together with side parts 2, not shown, forms a mold bottom 3. The mold chamber block 1 has an inner region 4 and a peripheral edge region 5. In the inner region 4 recesses or openings 6 are arranged, which serve as mold chambers 7. The molding chambers 7 break through the molding chamber block 1 in a direction perpendicular to the plane z. The molding chambers 7 have a contour 8, which corresponds to the contour of concrete body or paving stones, not shown, which can be formed in the molding chamber block 1. The edge region 5 is composed of two opposite longitudinal edges 10 (only one of the longitudinal edges is visible in FIG. 13) and two opposite transverse edges 12 (only one of the transverse edges is visible in FIG. 13). In the edge region 5 recesses 13 are formed circumferentially around the inner region, which are partially filled with polymer concrete 72. The polymer concrete 72 prevent the filling of the apertures 6 the entry of filling material into the recesses 13 and vibration damping acts on the excited by a vibrator, not shown mold chamber block 1. Furthermore, the molding chamber block 1 at the transverse edges 12 recesses 13, which formed as undercut grooves 15 are and extend parallel to the apertures 6. In the molding chamber block 1 shown in FIG. 13, the grooves 15 are designed as T-slots 16. The T-slots 16 extend from an upper side 17 to an underside 18 of the molding chamber block 1 and have lateral openings 20 towards transverse sides 19 of the molding chamber block 1. Through the grooves 15 is formed on the transverse edges 11, 12 to the transverse sides 19 towards an open-edged structure 21, which forms a web structure 22 in the plan view, if the polymer concrete fillings are ignored. In this case, the webs 24 formed between an environment 23 and grooves 15 or recesses 13 have approximately the same web width S. The web structure 22 extends substantially over a width B of the Mold chamber block 1. According to an embodiment variant not shown, the molding chamber block 1 also has grooves in the region of longitudinal sides 26, in particular over a length L of the molding chamber block 1, which grooves produce a structure open to the edge.

FIG. 14 shows the partial view of a plan view of the molding chamber block 1 shown in FIG. 13. In the region of a longitudinal edge 10, the molding chamber block 1 has a plurality of different recesses 13 in an exemplary representation. These are the recesses 13a, 13b, 13c. These have different opening cross-sections 73a, 73b, 73c, which are characterized by tapers 74 and spacers 75. Walls 76 have projections 77 and recesses 78. Opposing walls 76 of the recess 13c or web portions 24a, 24b are connected by anchors 79, which are connected in anchor points 80 in a form-fitting manner with the web portions 24a, 24b. All annularly closed recesses 81 are filled according to an embodiment not shown with polymer concrete. In order to achieve maximum vibration damping, it is optionally provided to also fill laterally open recesses 82 (designated 15 and 16 in FIGS. 1 to 12) after the attachment of the side parts, not shown here, with polymer concrete.

FIG. 15 shows a section in the region of the recess 13a or 81 shown in FIG. 14 along a section line XV-XV through the molding chamber block 1. The walls 76 visible in the sectional view have groove-shaped recesses 78 which are parallel to the top side 17 or bottom side 18 of the molding chamber block 1. The polymer concrete filling, not shown, which is located in the recess 81 is held in this form-fitting manner by the shape of the walls 76. Thus, acceleration forces, which in shaking in about in the Arrow directions z, z 'act on the polymer concrete filling, not only transmitted via existing between the polymer concrete and the walls 76 adhesive bond. An oscillation of the molding chamber block 1, which for example causes a deflection of the molding chamber block 1 in the region of the recess shown in FIG. 15 in the direction of the arrow z, is damped by a compression of the polymer concrete filling. The polymer concrete filling is hereby compressed or pressed in an area lying above a median plane M.

FIG. 16 shows a section through the molding chamber block 1 in the region of the recess 13b shown in FIG. 14 along a section line XVI-XVI. The recess 13b has projections 83 in the area of recesses 78 (see FIG. 14). This makes it possible alone via the opposing walls 76 shown in Figure 16 the polymer concrete, not shown, which fills the recess 13b, in all spatial directions x, x ', y, y', z, z '(see Figure 13) to hold a positive fit.

FIG. 17 shows a section through the molding chamber block 1 in the region of the recess 13c shown in FIG. 14 along a section line XVII-XVII. The armature 79 is screwed into the web portions 24a, 24b, wherein it is held in the web portion 24b in a through-threaded portion 84 and in the rod portion 24a in a blind hole thread 85. The armature 79 serves as a pull and push rod for stabilizing the forming chamber block 1. The armature 79 makes it possible to provide large recesses 13 c for vibration damping and weight reduction without having to forego the stability of the forming chamber block 1. Oscillations of the armature 79 are damped by this umlagernden, not shown polymer concrete.

FIGS. 18a to 18h show schematically illustrated plan views of walls 76 which delimit recesses. Allen Wandungsverläufen it is common that these projections 77 and recesses 78, which lead to a positive interlocking of the polymer concrete with the molding chamber block. As a result, it is possible to specifically damp tensile stresses acting through the polymer concrete in the longitudinal direction a of the wall 76, since the stresses are transferred from the walls 76 directly to the latter.

FIG. 19 shows a side view of another molding chamber block 1 with obliquely extending recesses 81. The left recess 81 extends diagonally from an underside 18 to an upper side 17 of the molding chamber block 1. The right-hand recess 81 is approximately Y-shaped in cross-section and faces the underside 18 and to the top 17 of the molding chamber block 1 broadening 75, through which a positive fixing of the polymer concrete filling, not shown, is reached.

FIG. 20 shows a plan view of a further molding chamber block 1. In a corner region 86, the molding chamber block 1 has a laterally open recess 82, into which a polymer concrete body 87 is inserted. This is provided for damping oscillations that converge in the corner region 86 and held in a form-fitting manner on the molding chamber block 1 via lugs 88, which engage in grooves 89 of the molding chamber block 1.

FIG. 21 schematically shows a section of a further mold chamber block 1. The molding chamber block 1 has recesses 81 which are connected by connecting spaces 90 open to an upper side 17 of the molding chamber block 1. The connection spaces 90 are like the recesses 81 filled with polymer concrete.

The invention is not limited to illustrated or described embodiments. It rather includes Further developments of the invention within the scope of the protective rights claims. In particular, the invention also provides for the use of recesses and grooves with rounded corners and edges. The filling of recesses with polymer concrete is intended for both bolted together and welded together mold parts, sometimes referred to as a form.

LIST OF REFERENCE NUMBERS

1

Mold cavity block

2

side panel

2a

left side panel

2 B

right side part

3

Mold part

4

inner area (from 1)

5

Border area (from 1)

6

Recess / opening (from 1)

7

forming chamber

8th

Contour (from 7)

9

longitudinal edge

10

longitudinal edge

11

cross-border

12

cross-border

13, 13a, 13b, 13c

Recess (in 5)

14

cover

15

groove

16

T-slot

17

Top side (from 1)

18

Bottom (from 1)

19

Transverse side (of 1)

20

lateral opening

21

open-edged structure

22

web structure

23

Surroundings

24

web

24a, 24b

web section

25

Long side (from 1)

26

Long side (from 1)

27

sliding block

28

mother

29

threaded hole

30

screw

31

pen

32

connection profile

33

wear strip

34

external storage

35

groove strip

36

cover

37

screw

40

Mold cavity block

41

cavity

42

neck

43

Freibrennung

50

Mold cavity block

51

groove base

52

slot opening

60

Mold cavity block

70

Mold cavity block

71

vertical

72

polymer concrete

73a, 73b, 73c

Opening cross-section

74

rejuvenation

75

widening

76

wall

77

head Start

78

return

79

anchor

80

anchor point

81

annular, closed recess

82

laterally open recess (= 15, 16)

83

Projection in the range of 78

84

Through thread

85

Blind hole

86

corner

87

Polymer concrete body

88

Nose of 87

89

Groove in 1

90

communication space

Claims (19)

1. Mould for producing concrete units, in particular paving stones, with a lower mould section (3), consisting of a mould cavity block (1, 40, 50, 60, 70) and side sections (2, 2a, 2b) that are screwed onto the latter, wherein the mould cavity block (1,40,50,60, 70) has an inner section (4) with mould cavities (6, 7) and an edge section (5), on which cutouts (13) are provided at least partly, wherein the cutouts (13) in the edge section (5, 11, 12) are designed with a side opening (20) for securing the side sections, in plan view at least partly as an undercut slot (15, 16), whereby the mould cavity block (1, 40, 50, 60, 70) has an essentially uniform width (D), the edge section (5, 11, 12) has cutouts (13) for securing side sections (2,2a, 2b), by which intermediate webs (24) with uniform web width (S) are formed, characterised in that the side sections (2, 2a, 2b) are screwed on at right angles to the direction of the undercut slots (15, 16).
2. Mould according to claim 1, characterised in that the side section (2, 2a, 2b) is screwed and/or clamped by means of the undercut slots (15, 16) to the mould cavity block (1, 40, 50, 60, 70) and, in particular, is additionally welded.
3. Mould according to one of the preceding claims, characterised in that the side section (2, 2a, 2b) and the mould cavity block (1, 40, 50, 60, 70) are aligned relative to one another by means of pins (31) and/or bearing surfaces:
4. Mould according to one of the preceding claims, characterised in that the undercut slot (15) is designed in particular as a T-slot (16) or L-slot and in cross section has an in particular square and/or rounded hollow cavity (41) and a neck (42) connecting the latter to the environment (23) and preferably is designed as a torch cut clearance (43).
5. Mould according to one of the preceding claims, characterised in that the slots (15, 16) and/or the cutouts (13) are arranged at regular intervals from one another.
6. Mould according to one of the preceding claims, characterised in that the slots (15, 16) have different neck lengths (1₁, 1₂) and in particular T-slots (16) with different neck lengths (1₁, 1₂) are arranged next to one another in an alternate manner.
7. Mould according to one of the preceding claims, characterised in that securing means for connecting the mould cavity block (1, 40, 50, 60, 70) with the side section (2, 2a, 2b) are in the form of a threaded rod with a wedge clamp.
8. Mould according to claims 1 to 6, characterised in that securing means for connecting the mould cavity block (1, 40, 50, 60, 70) with the side section (2, 2a, 2b) are in the form of a step-shaped, dowel-like claw clamping device.
9. Mould according to claims 1 to 6, characterised in that securing means for connecting the mould cavity block (1, 40, 50, 60, 70) with the side section (2,2a, 2b) are in the form of an eyebolt with a wedge bolt.
10. Mould according to one of the preceding claims, characterised in that a cutout (13, 15, 16, 81, 82) in the edge section (5) of the mould (1 or 3) is filled with a damping filler.
11. Mould according to claim 10, characterised in that polymer concrete (72) is provided as the filler.
12. Mould according to one of the preceding claims, characterised in that the cutout (13, 15, 81, 82) has an opening cross section with tapered sections (74, 77) and widened sections (75, 78).
13. Mould according to one of the preceding claims, characterised in that walls (76) of the cutout (13, 13a, 13b, 13c, 15, 81, 82) are connected by at least one anchor (79) with at least two anchor points (80).
14. Mould according to one of the preceding claims, characterised in that annularly close cutouts (81) are provided which are all filled with filler.
15. Mould according to claim 14, characterised in that annularly closed cutouts (81) and laterally open cutouts (82) run through the mould cavity block (1) in any spatial direction.
16. Mould according to claim 15, characterised in that at least two cutouts (81, 82) are connected by at least one connecting space (90), in particular bores.
17. Mould according to claim 16, characterised in that the connecting space (90) is filled with filler material.
18. Mould according to one of claims 15 to 17, characterised in that annularly closed cutouts (81) and the laterally open cutouts (82) are arranged in a corner section (86) of the mould cavity block (1).
19. Mould according to one of claims 15 to 18, characterised in that a prefabricated insert (87) made of filler material can be inserted or adhered into the annularly closed cutouts (81) and the laterally open cutouts (82).

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