DE8320056U1 - Reinforcement holder device for molding devices for the production of concrete molded parts - Google Patents

Description

Patent attorney; MyfbRj'gärstr. 6E '_} _,'".' Authorized representative at

Oipl.-Ing. Volkhard Kratzsch "cf-YsoÖ Esslingen European Patent Office

Telephone Stuttgart (0711) 317000 Deutsche Bank Es "lingen 210906 cable" krapatent "esslingenneckar Postscheckar.it Stuttgart 10004-701

Georg Prinzing GmbH & Co. KG July 5, 1903

Concrete mold and machine factory

7902 Blaubeuren Attorney File 3644

Reinforcement holder device for support equipment for the production of molded concrete parts

The invention relates to a reinforcement holder device for molding devices for producing concrete molded parts, the otherwise mentioned in the preamble of claim 1 Art.

Molding equipment for the manufacture of molded concrete parts work according to the so-called vibratory pressing process are known. They result, for example, from DE-PS 31 10 185, DE-GN 81 07 640. Such molding devices generally have several spaced apart in the circumferential direction of the molding ratio Reinforcement holder devices with individual slides of the generic type. The sliders are each viewed in the retraction direction from the holding position into the release position, graduated in such a way that the front end part a significantly smaller height, starting from the lower edge of the slide, than the one in the translation direction at a distance the rear part of the slider located therefrom, which has the complete height of the slider. Well known for a slide Art, the upper edge between the two parts has a support surface for the reinforcement parts, in particular reinforcement rings. This bearing surface is in a known slide designed as a wedge-shaped recess to the right, in

the rn ^ n must insert the reinforcement rings by hand. These horizontal wedge shape with the wedge tip directed in the direction of retraction has the advantage that when concrete is uneven falls on the reinforcement ring, it cannot tip up on one side. Also known is one Design in which between the lower front end part of the slide and its rear part from the right a sloping surface connecting both parts in steps runs from top to bottom left. In this design the slide you can throw the reinforcement rings into the mold space from above, with the reinforcement rings on the inclined surface slide down to a position in which they are then on the considerably lower lying horizontal upper edge of the front end part rest.

However, such known reinforcement holder devices have various disadvantages. On the one hand, these are conditional due to the last described contact surface for the reinforcement rings. In the latter case it is disadvantageous that the reinforcement rings are on the horizontal sections the slide can move freely and thus at least in the direction of insertion of the slide not automatically and forward especially not be centered exactly. Although centering in the other direction takes place through the inclined surface and with diametrically opposed slides even as far as a compensation is conceivable, it happens again and again that the reinforcement rings due to low stability and, because they are often not exactly round, do not have the necessary concrete cover-

^ point and are often visible on the inside or outside of the molded concrete part produced.

Another significant disadvantage arises from the fact that the front end part of the slide is a significantly smaller one Has height than the slide part following behind it. In the holding position pushed into the mold

the rear part of the slide is located within the gap; |

in the wall, which in terms of its height is equal to this £

Height of this slide part is matched. While ^

the slide is located in the mold space, i.e. in its holding '

position, so it closes the gap here. Often ■; the slide, however, not only after the form has been completely finished; process out of the mold space into its release point. '.' drawn, but already during the process ■■; filling of concrete in the mold space or at some point during the compaction process. In this withdrawn release position the front end part of the slide is then located in the gap. Because of the significantly lower height:;. this front end part as that of the gap is'

the latter completely open and free above the front end part. Here, concrete can escape from the mold space. In particular, cement milk flows out very quickly during the compaction process, e.g. by shaking. Du.es forces reinforcement holder devices of this type to be provided with additional sealing devices, which are extremely expensive and also have defects. If you take into account, for example _; that according to the German standard, a manhole ring with a clear width of 1000 mm and a construction height of 500 mm requires two reinforcement rings during production, or the same molded concrete part according to the Norwegian standard even requires five reinforcement rings with twice the overall height, this usually means four reinforcement holder devices for each reinforcement ring, that in the former case eight and in the latter case even twenty additional sealing devices are required. The costs for this are enormous. The installation in the mold wall also causes considerable costs. These disadvantages are pointed out in more detail in the specific description. Reference is made to this in order to avoid repetition.

The invention is based on the object of a reinforcement holder device to create the type mentioned in the preamble of claim 1, in both positions of the

The slide ensures a reliable closure of the gap without the need for additional sealing devices with the associated disadvantages.
5

The task is in a reinforcement holder device of the type defined in the preamble of the claim according to Invention achieved by the features in the characterizing part of claim 1. Advantageous further developments result from claims 2-4.

As a result of this design, the gap in the wall is both in the holding position of the slide and in its release position reliable and completely sealed, suspect that there are additional sealing devices or the like. requirement. A substantial cost saving is therefore achieved here. In the retracted holding position of each slide is its rear slide section, which is exactly the same as the in terms of height and cross-sectional thickness Gap is dimensioned in the area of the gap and seals this, apart from the necessary play, completely. When the slide is in the retracted release position, it is of the same height and thickness front end part within the gap, which in doing so in gleieher Way is sealed across the whole height and width, apart from the play of movement. The gap in the wall can also be produced quickly and cheaply with the necessary accuracy, e.g. by using a circular saw blade is milled into the wall. This design means that no additional sealing devices are required, so that all the disadvantages associated therewith are omitted here and as advantages of the inventions according to the invention Reinforcement holder device are to be recorded.

The invention is also based on the object of a reinforcement holder device the type mentioned in the preamble of claim 5 so that it is in terms of Insertion of the reinforcement parts, e.g. reinforcement rings,

no laborious manual introduction is required, but this in a known manner from above into the open mold space can be thrown in, but that in the same way also a reliable automatic centering thrown Reinforcement parts happen in both directions and approximately in the middle of the mold space.

The object is in a molding device of the type defined in the preamble of claim 5 according to the invention solved by the features in the characterizing part of the claim. Advantageous further developments in this regard result from claims B to 10.

The preferably symmetrical centric recess on the upper edge of the slide leads to an automatic horizontal centering of reinforcement parts thrown in from above, in particular reinforcement rings, in the horizontal direction on both sides, i.e. in the direction of insertion and contrary to this. This is achieved solely by the aforementioned shaping of the upper edge, and therefore with extremely simple and cheap means. Compared to known reinforcement holder devices a significant improvement in the centering effect is achieved in this way.

iJ ° Further advantageous measures emerge from claims 11 to 15. The reinforcement ^{holder device is extremely simple and inexpensive.} It enables large-scale cost savings.

The invention also relates to a reinforcement holder device according to the preamble of claim 16. In known devices of this type, the fastening device from the form-side threaded bolts on which the bracket together with the working cylinder and, if it is not dismantled, it can also be attached to the slide, and it is also screwed onto the threaded bolts Nuts. Since you do not for reasons of savings

-B-

for each farm this also provides the corresponding number of parts of the iron reinforcement holder device, but dismantled from one mold: and when changing ^{the mold attaches r} .el to the other mold, this change is quite time-consuming with this design of the fastening device.

The invention is based on the object of a reinforcement holder device of the type defined in the preamble of claim 16 so that a faster and easier Change of the working cylinder is possible. According to the invention, this is due to the features in the marking part of claim 16 achieved. The training according to claim 17 is advantageous for this. They are within the scope of Invention the most diverse embodiments of such Quick-release eccentric locks, as can be found in the state of the art. This design has the advantage that by simply loosening the clamping toggle of the eccentric lock and pulling off the bracket from Centering bolts of the working cylinder, if necessary with Other parts attached to it, changed and attached again when changing the mold to a different nominal mold size can be.

Further details and advantages of the invention emerge from the following description.

The complete wording of the claims is not reproduced above solely to avoid unnecessary repetition, but instead only referred to it by naming the claim number, which however all of these claim features are to be considered expressly disclosed at this point and essential to the invention to have.

The invention is explained below with reference to in the drawings illustrated embodiments explained in more detail. It demonstrate :

Fig. 1 is a schematic plan view with partial

horizontal section of parts of a molding device for the production of molded concrete parts as well as the individual parts of a reinforcement holder device, 10

FIG. 2 is a side view with a partial vertical section of a tail of the molding device and FIG the reinforcement holder device in Fig. 1,

Fig. 3a

and FIG. 3b each schematic side views of one

Slider's known reinforcement holder devices.

Before the invention is explained in more detail with reference to FIGS. 1 and 2, the known reinforcement holder devices are first of all according to 3a and 3b explained.

In Fig. 3a only the slide 10 of a reinforcement holder device is shown in side view, which at a molding device, not shown, either from the inner mold core or from the outer mold jacket a gap contained therein transversely into the formed in between Mold space is insertable. The sliding movement takes place horizontally in the direction of arrow 11. In the shown inserted The state of the slide 10 results in its holding position. The gap in the wall of the mold core or The thickness of the outer mold jacket of the molding device is based on the material thickness of the slide 10 roughly matched. The height of the gap is as high as the highest dimension a of the slide 10. Can be seen

-B-

dor the front end part 12 of the slide 10 is dimensioned to be much smaller in terms of height. This height dimension b_ deis vcrderen end part 12 is about half of the maximum dimension yes. In its holding position there is the right end part of the slide 10 in FIG. 3a, which has the maximum dimension a_, within the gap in the mold. In the other position, the release position, of the slide 10, which is shifted to the right in the direction of arrow 11, the latter is outside the mold space, with its front end part 12 then being stored within the gap in the wall of the mold, but only with the smaller height dimension ^. The top of the slide 10, generally designated 13, has a centering support surface 14. A reinforcement part 15, which usually consists of a ring, can be placed thereon.

In this design of the slide 10 according to FIG. 3a, the reinforcement part 15 must be in the holding position shown by hand into the roughly wedge-shaped in Fig. 3a ruT-.h right tapered support surface 14 are inserted. Usually there are three to four such reinforcement holder devices for each reinforcement part 15, in particular reinforcement ring, for each molding device required and arranged. All rebar fixtures are pre-formed prior to the molding process the slide 10 each moved into the holding position. The reinforcement parts 15 are then introduced. In Fig. 3 by hand. Then the mold space is filled with concrete and the compaction process is initiated. After the compaction has been completed, usually beforehand,

^{OVJ moves} the slide 10 in Fig. 3a according to arrow 11 to the right out of the mold space and into the release position. When designing the support surface 14 in FIG. 3a, the insertion of the individual reinforcement parts 15 by hand is very complex. The one that tapers to the right in a wedge shape

Recess of this support surface 14 is insofar however favorable that if concrete falls unevenly on the reinforcement part 15, the reinforcement part 15 should cannot tip up on one side.

The Schiober 11D in f ^: ig. 3b differs from slide 1 [I according to FIG. 3b obliquely from top right to bottom left; sloping sloping surface 117 is provided, which connects the upper edge 116, which runs on the maximum dimension £, with the front end part 112, which runs on the height dimension b_. The inclined surface 117 has the advantage that the reinforcement parts 115, in particular reinforcement rings, are automatically centered essentially in the center of the mold simply by throwing them into the mold space from above.

Both reinforcement holder devices, especially slides 10, 110, however, have the following disadvantages. The reinforcement part 15, 115, in particular the reinforcement ring, can be located on the horizontally extending upper edge part to the right of the front End part 12, 112 move freely. So he won't exactly centered. Although the reinforcement part 15, 115, in particular reinforcement ring, by the slide further Reinforcement holder devices, in particular opposing ones, on the forming device in the other ;. Direction centered it happens again and again that the reinforcement part 15, 115 due to its low stability and because it is often not exactly round as a ring,

^ 5 does not have the necessary concrete cover and is often on the inside or outside of the molded concrete part becomes visible.

Other significant disadvantages result from the following. The slides 10, 110 are through a thin gap in the wall of the molding device in its holding position shown inserted. The height of the gap corresponds approximately to the maximum dimension a_. The gap is in the holding position at least essentially completed. However, if the slide 10, 110 in the direction of arrow 11 to the right moved to its release position, e.g., depending on the shaping process, even during the compaction process.

-ιοί ges or even during the filling process of concrete, the front end part 12j 112 with the much smaller height dimension b is located within the gap. In the area above the front end part 12, 112, that is to say at the level a_ minus b_, the gap in the wall of the mold is thus completely open. Here, concrete can escape from the mold space. Above all, during the compaction process, e.g. by shaking, it usually flows relatively quickly. Cement milk] from the farm room. In order to counter this, the known reinforcement holder devices, in which the slides 10 or 11G are present, still have to have special sealing devices. These consist of separate parts that have to be specially attached to the wall of the molding device in the area of the gap, for example by screwing or in particular by welding. The sealing devices contain elastic seals inserted in special holding elements which, in the respective position of the slide 10, 110, rest against its broad surfaces and are intended to seal the gap.

However, these sealing devices have major disadvantages. On the one hand, the production of the sealing elements means considerable work Extra cost. This becomes clear if one takes into account that, for example, already according to German standards, e.g. during manufacture a concrete manhole ring with a clear width of 1000 mm and 500 mm height, two reinforcement rings are required, with Norwegian standard specifications for the same molded concrete part With an overall height of 1000 mm, there are even five reinforcement rings. As a rule, there are four reinforcement holder devices per molding device are provided, this means eight additionally required sealing devices in the first-mentioned case and in the second case even twenty additional sealing devices. The installation of these sealing devices causes also considerable costs. The recess in the mold wall must be cut out with the cutting torch will. The sealing device must be installed wherein the shape is slightly distorted when the sealing device is attached by welding, so that thereafter

considerable straightening work is necessary. Besides, they have to Sealing devices are sanded inside to the appropriate shape radius by hand. Since a flawless one Aim for exact roundness and straightness of the usually cylindrical walls of the mold core or mold shell is no longer possible, means installing the Sealing devices inevitably have a deterioration in quality. It has also been shown in practice that the sealing strips due to the setting of the concrete mass, which accumulates around the sealing devices, can no longer yield elastically and thus after retraction of the slides 10, 110 of the reinforcement holder devices the gap in the wall of the mold is no longer reliable due to the sealing device, in particular whose sealing strip is closed.

When the last molded concrete part is made per shift Then concrete in this gap, which sets overnight, so that at the beginning of the next layer the Slide 10, 110 of the individual reinforcement holder devices can no longer be retracted into their holding positions can be bent or bent by hitting set concrete.

In the reinforcement holder device according to the invention shown in FIGS. 1 and 2, reference numerals that are larger by 200 are used for the parts that correspond to those in FIGS. 3a and 3b, so that the description of the embodiments according to FIGS

3b is referred to to avoid repetition.

In Fig. 1 and 2 of the molding device 220 of the molding space 221 are indicated schematically, which between a Wall 222 of the outer mold shell and 223 of the inner mold core, e.g. cylindrical and coaxial run towards each other. In FIG. 2, the slide 210 is in its holding element pushed into the mold space 221.

position, while Fig. 1 the slide 21G in its retracted Shows the release position, which is also indicated by dashed lines in FIG.

The slide 210 is as an approximately sword-like, thin-walled and edgewise plate 234 formed from a rust and acid resistant material such as V2Aj and a uniform cross-sectional thickness, e.g. has only 2.5 mrn. The plate 234 has a rectangular shape, wherein its upper edge 216 runs straight through and parallel to the lower edge 225 and at right angles to the two side edges runs front and back. The plate 234 contains at the upper edge area, starting from its upper edge 216, a downwardly extending centering recess 226.

As can be seen, the front end part 212 of the slide 210, which in the release position (FIG. 1) is supported in the gap 227 of the wall 7.7.7, and likewise at least one slide part located at a distance therefrom as seen in the displacement direction (arrow 211) 228, which is located on the right side of the centering recess 226 in FIG. 2 and which is located in the inserted holding position within the gap 227, has the same height. This means that both the front end part 212 and the slide part 228 have the same maximum dimension a. Both run at the highest point of the slide 210 and thus at the same time determine the height of the gap 227 in the wall 222. The front end part 212 and the slide part 228 of the same height run with their respective

ligen upper edges at the same height and in alignment to each other and run at least approximately parallel to the lower edge 225.

The gap 227 has the same height a and, with regard to the width of the gap, is equal to the thickness of the plate 234 coordinated that the plate 234 during the shift into the holding position and back into the Frsigabeststellung according to Arrow 211 is well guided in gap 227 and this

closes in both of the above-mentioned positions precisely and tightly both in the height direction and in the transverse direction. This means that the sealing devices that are absolutely necessary in the case of known reinforcement holder devices Slides are not required here, which leads to significant cost savings and at the same time an increase in quality with the elimination of all the "powers described above. That small play between the gap 227 and the plate 234, which is necessary for movement, affects the described Sealing effect not. By having the plate ^ 34 in each Position remains at the full height within the gap 227, no concrete mass which may penetrate can collect there and harden, allowing later entry into the gap 227 would block or damage the disk. It is also advantageous that the gap 227 in the wall 222 can be milled in quickly and easily with high accuracy, e.g. using a circular saw blade leaves. All else with the need to be built in Disadvantages associated with sealing devices are eliminated here.

This leads to a significant cost saving.

With reference to FIGS. 1 and 2, farner is a further one that is essential to the invention Embodiment of the reinforcement holder device explained, which in the centering recess 226 lies. This is located, viewed in the direction of displacement according to arrow 211, at a distance from the front end part 212. It is preferably symmetrical about a vertical axis and, which is not shown, can or is arcuate, as Fig. 2 shows, from two somewhat V-shaped converging Upper edge sections 229, 230 are formed which converge in a point 231. The tip 231 can also be rounded be. As can be seen, the upper edge sections 229, 230 run at an obtuse angle to one another, the helix angle being the same in each case. the

^ ° centering recess 226 is sufficient, viewed in Fig. 2, at least, t down so far that in the area of the tip a doi'tiger reinforcement part 215, in particular reinforcement

r i η g, a u f reliably in the horizontal direction in any case • according to arrow 211 is automatically centered both to the left and to the right, without about on the upper edge 216 to slip out of this automatic centering position. This design of the slide 210 with that of the upper edge downward centering recess 226 has the It is particularly advantageous that the reinforcement parts 215, in particular reinforcement rings, from above during the shaping process can throw into the mold space 221 and then the reinforcement parts 215 automatically center in approximately the middle of the mold space 221. The centering happens due to the wedge shape of the centering recess 226 both in FIG towards the left as well as towards the right in FIG. 2, in each case due to the inclined course of the upper edge section 229, 230, so that the reinforcement part 215 is always automatically in a predetermined and reproducible position, which with the tip 231 is at least substantially congruent.

Another design essential to the invention is shown in FIG. The reinforcement holder device has a slide 210 translationally displacing in the direction of arrow 211 hydraulic working cylinder 240 on, which is at a transverse extending bracket 241 is attached and its KoI-

ben on the slide 210 is working. The unit consisting of holder 241, working cylinder 240 and slide 210 is detachable can be attached to supports in the form of two rods 242, 243 on the mold side. The solvability makes it possible to use the bracket Withdraw 241 from rods 242, 243, with all of them

parts sitting on it, which is necessary when changing the mold, e.g. to a different nominal mold width, and then the holder 241 to be reattached to the other shape with these parts. This means that you do not need your own for each shape Holder 241 with working cylinder 240, but can also be used with other shapes.

An eccentric lock 244 or 245 is provided on each of the two loops of the holder 241 as a fastening device. This makes a quick change with quick attachment possible. The eccentric lock 244, 245 is essentially of a type known per se and is required to that extent

no special explanation. He's with his gag part firmly attached to the holder 241, while the associated locking part in the form of the hook 246 or 247 on the rod 242 or 243 is attached. 10

Claims (17)

Patent attorney Mülbergerstr. 65 Authorized representative at Dipl.-Ing. Volkhard Kratzsch D-7300 Esslingen European Patent Office Telephone Stuttgart (0711) 317000 Deutsche Bank Esslingen 210906 cable «krapatent» esslingenneckar Postscheckamt Stuttgart 10004-701 Georg Prinzing GmbH & Co. KG July 5, 1983 · Betonformen- und Maschinenfabrik Blaubeuren - Attorney's files 3644 claims 1. Reinforcement holder device for molds for manufacture of molded concrete parts that move a translationally Schieuer (210), which by a gap (227) tailored to its material thickness and its greatest height in a wall (222) of the inner mold core or the outer mold jacket of the mold device (220) through transversely in the mold space (221) in a holding position for. Reinforcement parts (215) that can be placed on its upper side can be pushed in and is movable in the opposite direction to a release position, in that of the slide (210) with its front end part (212) in the gap (227) of the wall (222), thereby characterized in that the front end part (212) of the slide (210), which is in the release position in the gap (227) of the wall (222) is supported, and at least one further one, seen in the direction of displacement (arrow 211) at a distance therefrom located slide part (228), which is in the holding position within the gap (227), the same height (Height dimension a) are formed. 2. reinforcement holder device according to claim 1, characterized characterized in that the front end part (212) and the slider part (228) of the same height are the Have maximum dimension (a) of the slide (210). -2- 3. reinforcement holder device according to claim 1 or 2, characterized in that the front end part (2123 as well as the slider part (226) of the same height with their respective upper edges (216) at the same height and in alignment with one another and run at least approximately parallel to the lower edge (225) of the slide (210). 4. Reinforcement holder device according to one of the claims 1-3, characterized in that the slide (210) one by one perpendicular and dabbi approximately on the center of the mold space (221) extending axis has hinged symmetrical section. ¹ ^ 5. Reinforcement holder device for molds for Manufacture of molded concrete parts, which have a translational has movable slide (210), which is matched to its material thickness and its greatest height by a Gap (227) in a wall (222) of the inner ^ O ren mold core or the outer mold jacket of the mold device (220) through transversely into the mold space (221) in a holding position for those that can be placed on top of it Reinforcement parts (215) can be pushed in and in opposite directions can be moved into a release position in which the slide over (210) with its front end part (212) in gap (227) of the wall (222), the Obarr.nite of the The slide (210) has a centering bearing surface, characterized in that the slide (210), in the Vprschieberrichtung (arrow 211) seen, at a distance from the front end part (212) a preferably symmetrical folding about a vertical axis, has centering recess (226) extending from the upper edge (216) and extending downwards. 6. Reinforcement holder device according to claim 5, characterized in that the centering recess has ßogenforrn. -3- 7. Hewehrungr; ha 11 Urvorrich device according to claim 5, characterized in that the Zen Lri indentation (226) from two approximately V-shaped convergence end upper edge sections (229, 230) are formed is. Θ. Reinforcement holder device according to claim 7, characterized in that the Top edge portions (229, 230) converge at an obtuse angle. 9. reinforcement holder device according to claim 7 or 6, characterized in that the both upper edge sections (229, 230) at the same angle of inclination, starting from the direction of displacement (Arrow 211) in particular the parallel upper edge (216) of the slide (210). 10. Reinforcement holder device according to one of the claims 5-9, characterized in that the area in which the centering recess (226) is arranged at such a distance below the The upper edge (216) of the slide (210) extends at least as much as the cross-sectional dimension of the reinforcement parts (215) to be inserted is equivalent to. 11. Reinforcement holder device according to one of the claims 1 - 10, characterized in that that the slide (210) as an approximately sword-like, thin walled and upright plate (234) formed is. 12. reinforcement holder device according to claim 11, characterized in that the Plate (234) has a rectangular shape and, starting from its upper edge (216), the downward-reaching centering recess (226) within the plane of the plate. -4- 13. tJewehrungshfl 1 device according to a r | i: i · claims 1-12, characterized in that the slide (210) consists of a rust and acid-resistant Material, in particular V2A, is formed. 14. Reinforcement holder device according to one of the claims 11-13, characterized in that the plate (234) has a uniform cross-sectional thickness of 2.5 mm. 15. Reinforcement holder device according to one of the claims 1 - 14, characterized in that the slide (210), in particular the plate (234) / with the front end part (212) and the other slide part (22Θ) in the respective position (Fig. 1 or Fig. 2) the gap (227) in the wall (222) snugly and tightly in height ¹ - closes and the transverse direction. 16. Reinforcement holder device for molds for Manufacture of molded concrete parts, which have a translational has movable slide (210), which by a on its material thickness and its greatest height coordinated gap (227) in a wall (222) of the inner mold core or the outer mold shell of the Molding device (220) through transversely into the molding space (221) in a holding position for on its upper side Reinforcement parts (215) that can be placed on top can be pushed in and moved in opposite directions into a release position is, in which the slide (210) is supported with its front end part (212) in the gap (227) of the wall (222), wherein the reinforcement holder device has a working cylinder which translates the slide (210) (240) on a holder (241), which by means of a fastening device detachable on the mold side Supports (242, 243) can be fastened, d a d u r c characterized that the fastening device has at least one eccentric lock (244, 24 5). 17. Reinforcement holder device according to claim 1B, characterized in that the. Eccentric lock (244, 245) is attached to the releasable holder (241) carrying the working cylinder (240) with the slide (210) and that the locking part (246, 247) to which the eccentric lock is assigned, in particular the associated hook , into which a bracket of the eccentric lock (244, 245) can be hooked, is attached to the support (242, 243) on the mold side.