DE102023112841A1 - Method for producing a drainage article, production device and drainage article - Google Patents

Abstract

The invention relates to a method for producing a drainage object (10), in particular a channel (11) or a point drain, using a device (100) with a base, two side walls and two end walls (101), which depict an external shape of the drainage object (10), and at least one core (102), which depicts an internal shape, in particular a drainage surface (19), of the drainage object (10), wherein at least one of the two end walls (101) has an undercut (103) for forming an extension (12) of the drainage object (10), wherein the method comprises the following steps:- arranging the side walls and the end walls (101) on the base in such a way that a circumferentially closed shape is formed, wherein the undercut (103) of the at least one end wall (101) faces the interior (104) of the mold;- filling the interior (104) of the mold with a flowable material, in particular concrete material, such that the flowable material fills the undercut (103), wherein air and/or the flowable material which accumulates in the undercut (103) during filling is discharged through at least one channel (105) of the end wall (101); and- hardening the liquid material to form the drainage object (10) and shaping the hardened drainage object (10).

Description

The invention relates to a method for producing a drainage article, a device for producing a drainage article and a drainage article.

Drainage objects, for example in the form of gutters, point drains, inlet boxes, shafts or the like, which serve to drain surface water, can be manufactured in a variety of ways. The drainage objects are often made of a concrete material which is poured into a formwork from above. For example, the JP H 11 291 231 A A U-shaped channel made of precast concrete is known, in the production of which the precast concrete is filled from above into a formwork that reproduces the U-shaped channel. Furthermore, the EP 0 009 056 A1 a tubular component that is formed using concrete mortar. During the production of the component, concrete mortar is poured into a formwork, also from above, and compacted by vibrating or shaking.

Drainage objects very often have protruding structures. These can be designed with a low wall thickness. Such structures can be holding contours for seals, connections for pipes, locking pockets or the like. With protruding structures, depending on the orientation of the structure during manufacture, there is the problem that unwanted inclusions of air can occur at positions of pocket-forming geometries of the formwork. Such a protruding structure is known, for example, from the WO 2017/144501 A1 (Applicant) which protrudes from the front of a gutter body as a holding contour to accommodate a seal. The trapped air leads to a weakening of the material at the corresponding points, so that when the drainage object is being formed or installed, material flakes off the structure or, in the worst case, the structure even breaks.

The invention is therefore based on the object of specifying a method with which drainage objects can be produced with increased quality and improved stability. The invention is also based on the object of specifying a device for producing a drainage object and a drainage object.

According to the invention, this object is achieved with regard to the manufacturing method by the subject matter of claim 1. With regard to the device, the above-mentioned object is achieved by the subject matter of claim 6. With regard to the drainage object, the above-mentioned object is achieved by the subject matter of claim 14.

• - Anordnen der Seitenwände und der Stirnwände an dem Boden derart, dass eine umlaufend geschlossene Form gebildet wird, wobei die Hinterschneidung der wenigstens einen Stirnwand dem Inneren der Form zugewandt ist;
• - Befüllen des Inneren der Form mit einem fließfähigen Werkstoff, insbesondere Betonwerkstoff, derart, dass der fließfähige Werkstoff die Hinterschneidung ausfüllt, wobei durch wenigstens einen Kanal, insbesondere Luftkanal, der Stirnwand Luft bzw. der fließfähige Werkstoff, die/der sich beim Befüllen in der Hinterschneidung ansammelt, abgeführt wird;
• - Aushärten des fließfähigen Werkstoffs zur Bildung des Entwässerungsgegenstandes und Ausformen des ausgehärteten Entwässerungsgegenstandes.

Specifically, the object is achieved by a method for producing a drainage object using a device with a base, two side walls and two end walls which depict an outer shape of the drainage object, and at least one core which depicts an inner shape, in particular a drainage surface, of the drainage object, wherein at least one of the two end walls has an undercut for forming an extension of the drainage object, wherein the method comprises the following steps:

• - arranging the side walls and the end walls on the base such that a circumferentially closed mold is formed, wherein the undercut of the at least one end wall faces the interior of the mold;
• - filling the interior of the mould with a flowable material, in particular concrete material, in such a way that the flowable material fills the undercut, wherein air or the flowable material which accumulates in the undercut during filling is discharged through at least one channel, in particular air channel, of the front wall;
• - Curing the flowable material to form the drainage object and molding the cured drainage object.

The invention has the significant advantage that drainage objects with protruding contours, such as extensions, can be produced with high surface quality and high stability. This is achieved according to the invention in that in the area of the contour-forming, in particular extension-forming, undercut, the front wall has at least one channel through which air is or can be discharged during filling. In other words, the front wall has a riser through which air is or can be discharged during filling.

Tests have shown that when producing an extension that is intended to protrude laterally on the drainage object, for example, unwanted inclusions of air can occur at positions of pocket-forming geometries, such as the undercut of the front wall. The trapped air or air bubbles lead to a weakening of the material on the extension, which the method according to the invention prevents by using a channel integrated into the front wall. The method is therefore advantageous in that neither Material does not flake off, nor does the extension break. In the process, the undercut is completely filled with the flowable material. This creates a drainage object with a stable extension, which also has an increased surface quality. Preferably, the extension of the drainage object is a holding contour for a seal in order to tightly connect the drainage object, in particular a first channel section, to another drainage object, in particular a second channel section.

As described above, in the method according to the invention, before the filling process, the side walls and end walls are arranged on the base in such a way that a mold that is closed in the circumferential direction is formed. The interior of the closed mold is delimited laterally and downwards by the side walls, end walls and the base. The mold is preferably at least partially, in particular completely, open at the top in order to fill the mold with the flowable material. Alternatively, the mold can be at least partially open at the bottom, in particular have an opening at the bottom in order to fill the mold with the flowable material from below, preferably under pressure.

In the context of the invention, the directions "bottom" and "top" refer to the position of the device or the mold when producing a drainage object. In other words, in the production position of the mold, for example, the bottom is arranged at the bottom. The opening for filling the mold can be arranged at the top and/or bottom.

At least the side walls and the end walls, and in particular the base, represent the external shape of the drainage object to be produced. In the arranged state, the end walls are preferably arranged opposite one another. Furthermore, in the arranged state, the side walls are preferably arranged opposite one another. The core, which represents the internal shape of the drainage object to be produced, is arranged inside the mold. In other words, the side walls, end walls, base and core form a negative mold for the drainage object to be produced.

The core can be arranged on the floor, in particular directly resting on it. This is the case, for example, when a drainage object is manufactured with an open structure. Alternatively, the core can be arranged so as to be floating between the two end walls. In this case, the core is spaced from the floor in such a way that there is no contact with the floor. In other words, the core is arranged decoupled from the floor.

Alternatively, the base can comprise at least one support device, in particular a support geometry, on which the core is arranged, in particular mounted. This is used, for example, when a drainage object is manufactured with a monolithic structure.

According to the invention, the undercut of the front wall is aligned so that it faces the interior of the mold. As a result, the flowable material flows into the undercut during the filling process in order to form the extension. In the method according to the invention, the mold is preferably filled from above. This enables the mold contour(s) and in particular the undercut of the front wall to be filled by means of gravity. Alternatively or additionally, the mold can be filled from below under pressure.

To fill the mold, a flowable, particularly liquid, concrete material that can harden is preferably used as the flowable material. The flowable material is preferably flowable polymer concrete.

After the mold is filled, the filled material hardens to form a solid dewatering object. The hardened dewatering object is then removed from the mold in a molding step.

The method according to the invention can preferably be used to produce drainage objects, such as channels with open or monolithic channel bodies, or point drains. The production of other drainage objects, e.g. inlet boxes, is possible. Furthermore, shafts, shoe scrapers, trough trays, cable distributors, cable ducts or the like can also be produced using the method according to the invention.

Preferred embodiments of the invention are specified in the subclaims.

In a preferred embodiment, the at least one end wall is aligned during arrangement so that the channel rises starting from the undercut. In other words, the end wall is arranged on the floor so that the channel runs essentially upwards. This has the advantage that the air or air bubbles in the undercut escape quickly and easily through the channel and thus through the end wall. Alternatively, the at least one end wall can be aligned during arrangement so that the channel runs sloping or horizontally starting from the undercut.

In a further preferred embodiment, the at least one end wall is aligned during arrangement so that an apex region of the undercut is at the top in the vertical direction, with the channel adjoining the apex region. The apex region preferably forms the highest point of the undercut, at which air can preferably collect, in particular in the form of bubbles. In other words, the apex region of the undercut is located vertically at the top of the base when the end wall is arranged, with the channel running outwards from the apex region through the end wall. The advantage here is that the accumulated air collects at the apex region by rising and is thereby completely discharged through the channel. This ensures that the undercut is completely filled and thus a stable extension of the drainage object to be produced is achieved.

Particularly preferably, the flowable material flows from the undercut into the channel during filling and preferably rises in it. In other words, it is preferable that not only air is discharged during filling. The channel can also be used to hold the flowable material, in particular concrete material, in order to achieve complete filling of the undercut. During or after demolding, the area of the filled material that has solidified in the channel is removed or broken off from the extension of the drainage object.

In one embodiment, an intermediate area between the base and the core is filled with the flowable material during filling, with air and/or flowable material that accumulates in the intermediate area during filling being discharged through at least one further channel, at least through the core. The core can be arranged at a distance from the base before filling, for example to produce a drainage object with a monolithic structure. The advantage here is that in addition to the air in the undercut, air below the core can also escape from the mold. This makes it possible to produce stable and high-quality drainage objects.

The object set out at the outset is further achieved according to the invention by a device according to the independent claim 6. Specifically, a device for producing a drainage object is disclosed and claimed, which has a base, two side walls and two end walls that are arranged or can be arranged on the base to form a closed shape. The device has at least one core, with at least one of the two end walls comprising an undercut to form an extension of the drainage object. The at least one end wall has at least one channel for discharging air and/or a flowable material, which forms at least one passage through the end wall starting from the undercut.

The device according to the invention is used to produce a drainage object in combination with the described method according to the invention. The drainage object can be, for example, a channel with an open or monolithic channel body, a point drain, an inlet box or the like. Furthermore, the device according to the invention can be used to produce shafts, shoe scrapers, trough trays, cable distributors, cable ducts or the like.

It is possible that the device according to the invention is also used in other processes, for example to produce drainage objects or the like.

The two side walls and end walls, in combination with the core, form a negative form of a drainage object. The side walls, end walls and the base are preferably part of a formwork. The device can therefore also be referred to as a formwork device and the closed form as a formwork form. For example, the formwork form can be open at the top and/or bottom, in particular at least partially, for filling.

The core is arranged inside the mold. The core itself can be arranged on the floor, in particular directly adjacent to it. This is the case, for example, when a drainage object is manufactured with an open structure. Alternatively, the core can be arranged floating between the two end walls. Here, the core is spaced from the floor in such a way that there is in particular no contact with the floor. In other words, the core is arranged decoupled from the floor. Alternatively, the floor can comprise at least one support device, in particular a support geometry, on which the core is arranged, in particular mounted. This is used, for example, when a drainage object is manufactured with a monolithic structure.

The core preferably essentially defines a drainage surface. In the case of a gutter, this can correspond to the water-draining inside of the gutter.

According to the invention, the at least one end wall of the device has at least one channel, in particular an air channel that penetrates the front wall starting from the undercut. The channel is adapted to remove air that accumulates in the undercut during production or filling of the closed mold. Additionally or alternatively, the channel is preferably adapted to receive a flowable material, preferably concrete material or more specifically polymer concrete material. Thus, the drainage object can generally be made of concrete, in particular polymer concrete. With regard to the advantages, reference is made to the advantages explained above in relation to the method according to the invention.

In one embodiment of the device according to the invention, both end walls have at least one channel for discharging air and/or for receiving the flowable material. This is the case when at least one extension is to be formed on both end faces of the dewatering object. It is possible that at least one of the side walls, in particular both side walls, also have at least one channel for discharging air and/or for receiving the flowable material. A wide variety of combinations of these are possible, which are within the scope of the invention.

In a preferred embodiment of the device according to the invention, the channel in the front wall runs upwards starting from the undercut. This has the advantage that when the closed mold is filled with flowable material, the air in the undercut escapes quickly and easily through the channel and thus through the front wall. Alternatively or additionally, the channel in the front wall can run downwards starting from the undercut. The channel in the front wall is preferably designed to run vertically or at an angle between 0° and 90°, in particular 45°. The angle is to be understood as referring to a horizontal reference plane. Additionally or alternatively, the channel in the front wall can run horizontally.

In a further preferred embodiment, the channel adjoins an apex region of the undercut. The apex region preferably forms the highest point of the undercut, where air can preferably collect. This applies to the state of the front wall arranged on the floor. In other words, the apex region of the undercut is located vertically above when the front wall is arranged on the floor, with the channel running outwards from the apex region through the front wall. Air that has collected when the mold is filled is discharged through the channel in order to completely fill the undercut and thus achieve a stable extension of the drainage object to be produced.

In one embodiment, the channel is funnel-shaped, with the channel widening or narrowing starting from the undercut. Alternatively, the channel can be cylindrical. In other cases, the channel can be formed by a hole in the front wall. Alternatively, the channel can have a shape other than a circular cross-sectional shape, in particular a kidney shape or an elongated hole shape or an approximately rectangular shape. The channel can therefore have different cross-sectional shapes, which can be designed depending on the application and requirement. This increases the usability and the variety of variants of the front wall to form a closed shape.

In a preferred embodiment, the at least one end wall has several channels, in particular air channels, each of which forms one through the end wall starting from the undercut for discharging air and/or for receiving the flowable material. This allows, for example, increased amounts of air to be discharged. In addition, the channels can connect to the undercut at different positions in order to completely discharge the accumulating air. The channels can preferably connect to the undercut next to one another and/or one above the other.

The undercut preferably comprises a first and a second wall section which are essentially perpendicular to one another, with the channel or channels penetrating the front wall starting from the first or second wall section. Depending on the application, e.g. the extension of a drainage object to be formed, it is advantageous if the channel or channels connect to the first or second wall section, i.e. the air is discharged from the front or from above. This increases the versatility of the device. The reference plane described above, to which the rising angle of the channel refers, is preferably normal to the first wall section of the front wall.

In one embodiment, the core has at least one (further) channel for discharging air and/or for receiving a flowable material, which is connected to an intermediate region between the base and the core and forms at least one passage through the core starting from the intermediate region. The core can also have several further such channels. This advantageously allows the area below the core to be ventilated, so that the formation of the shape contours of the drainage object is improved.

According to the independent claim 14, the invention relates to a drainage object, in particular a gutter, a point drain or an inlet box, which is produced by the method according to the invention. Furthermore, within the scope of the application, a shaft, a shoe scraper, a trough tray, a cable distributor, a cable duct or the like, produced by the method according to the invention or the device according to the invention, is disclosed and claimed.

For advantages of the drainage object, reference is made to the advantages explained in connection with the method or device. Furthermore, the drainage object can alternatively or additionally have individual features or a combination of several features previously mentioned in relation to the method or device.

The invention is explained in more detail below with reference to the accompanying drawings. The embodiments shown represent schematic examples of how the device according to the invention and the dewatering article according to the invention can be designed.

• 1 eine perspektivische Ansicht einer Stirnwand einer Vorrichtung zur Herstellung eines Entwässerungsgegenstandes nach einem erfindungsgemäßen Ausführungsbeispiel;
• 2 eine Detailansicht eines Querschnitts der Stirnwand der Vorrichtung gemäß 1, wobei der erfindungsgemäße Kanal ausgeblendet ist und eine Luftblase zwischen dem Entwässerungsgegenstand und der Stirnwand eingeschlossen ist;
• 3 vier schematische Ansichten von Querschnitten der Stirnwand der Vorrichtung nach 1 im Bereich einer Hinterschneidung;
• 4 eine perspektivische Ansicht eines Entwässerungsgegenstandes nach einem erfindungsgemäßen Ausführungsbeispiel, die mit der Vorrichtung gemäß 1 hergestellt ist;
• 5a-5b eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem ersten erfindungsgemäßen Ausführungsbeispiel;
• 6a-6b eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem zweiten erfindungsgemäßen Ausführungsbeispiel;
• 7 eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem dritten erfindungsgemäßen Ausführungsbeispiel;
• 8 eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem vierten erfindungsgemäßen Ausführungsbeispiel;
• 9 eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem fünften erfindungsgemäßen Ausführungsbeispiel;
• 10 eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem sechsten erfindungsgemäßen Ausführungsbeispiel; und
• 11a-11b eine Detailansicht eines Entwässerungsgegenstandes im Bereich einer Haltekontur für eine Dichtung nach einem siebten erfindungsgemäßen Ausführungsbeispiel.

In these show,

• 1 a perspective view of an end wall of a device for producing a drainage article according to an embodiment of the invention;
• 2 a detailed view of a cross-section of the front wall of the device according to 1 , wherein the channel according to the invention is hidden and an air bubble is enclosed between the drainage object and the end wall;
• 3 four schematic views of cross sections of the front wall of the device according to 1 in the area of an undercut;
• 4 a perspective view of a drainage object according to an embodiment of the invention, which can be used with the device according to 1 is manufactured;
• 5a-5b a detailed view of a drainage object in the region of a holding contour for a seal according to a first embodiment of the invention;
• 6a-6b a detailed view of a drainage object in the region of a holding contour for a seal according to a second embodiment of the invention;
• 7 a detailed view of a drainage object in the region of a holding contour for a seal according to a third embodiment of the invention;
• 8 a detailed view of a drainage object in the region of a holding contour for a seal according to a fourth embodiment of the invention;
• 9 a detailed view of a drainage object in the region of a holding contour for a seal according to a fifth embodiment of the invention;
• 10 a detailed view of a drainage object in the region of a holding contour for a seal according to a sixth embodiment of the invention; and
• 11a-11b a detailed view of a drainage object in the region of a holding contour for a seal according to a seventh embodiment of the invention.

In the following description, the same reference numbers are used for identical and equivalent parts.

1 shows a part of a device 100 according to the invention for producing a drainage object 10. As in 4 As can be seen, the drainage object 10 is a channel 11 for collecting and draining surface water. Other drainage objects are possible.

The channel 11 has two side walls 17 running in the longitudinal direction and arranged opposite one another and a channel base 18 located between them. The channel base 18 is part of a drainage surface 19 which extends in the longitudinal direction of the channel 11. Furthermore, the channel 11 has two end faces 21 which each form a longitudinal end and which are located opposite one another. A first of the two end faces 21 comprises an extension 12 which projects in the longitudinal direction (see 4 ), which extends transversely to the longitudinal direction around the channel bottom 18 or the drainage surface 19. The extension 12 forms a holding contour for a seal 22, which is arranged on the holding contour. The seal 22 is in 4 and in 5a to 10. In 11a and 11b the seal 22 is hidden for the sake of simplicity.

In the cross section according to 2 For example, it can be seen that the channel 11 to be produced has a recess 23 surrounding the extension 12, into which, for example, a seal 22 is or can be inserted in sections during use. The recess 23 forms a groove which runs radially outward along the extension 12. As in 4 As can be seen, the extension 12 is U-shaped. Other shapes are possible.

The device 100 according to the invention essentially comprises a first end wall 101, which 1 is shown, a second end wall (not shown) which is arranged or can be arranged opposite the first end wall. The device 100 additionally has two side walls (not shown) and a base (not shown) on which the two side walls are arranged or can be arranged opposite one another. In the arranged state, the side walls and the end walls of the device 100 form a circumferentially closed shape. The shape can be open at the top or bottom depending on the type of filling. More specifically, the side walls and the end walls together form a formwork mold which depicts an external shape of the channel 11 to be produced. In other words, the closed formwork mold forms a negative mold for producing the channel 11. In order to form the drainage surface 19 of the channel 11, the device 100 has a core 102 which is arranged on the base. Alternatively, the core 102 can be arranged at a distance from the base, i.e. raised. The core can be provided floating between the end walls of the device 100 or can be arranged, in particular mounted, on a support device of the floor.

As in 1 and 2 As can be seen, the first end wall 101 has an undercut 103 for forming the extension 12 of the channel 11. The undercut 103 is essentially a recess in the first end wall 101. In 2 it can be seen that the core 102 projects into the recess with its front surface and rests against the first front wall 101. The undercut 103 comprises a first wall section 107 and a second wall section 108, which are essentially perpendicular to one another. The first wall section 107 is aligned vertically in the closed state of the formwork and the second wall section 108 is approximately horizontal. The second wall section 108 preferably has an angle in relation to the first wall section 107 for improved shaping of the extension and thus of the channel 11. The first wall section 107 is arranged transversely to a longitudinal axis of the formwork. The second wall section 108 runs in the direction of the longitudinal axis, ie in the longitudinal direction. The undercut 103 comprising the recess is formed as seen in the longitudinal direction of the formwork.

As can be seen from the 1 and 2 As can be seen further, a web 109 adjoins the undercut 103, which is formed so as to protrude from the first end wall 101. The web 109 runs around the undercut 103. The undercut 103 and the web 109 form a complementary contour to the extension 12 of the channel 11. In other words, the undercut 103 and the web 109 form a negative contour for forming the extension 12 and the groove of the channel 11 running along the extension 12. The web 109 is arranged on the undercut 103 in such a way that it extends the second wall section 108. The second wall section 108 forms a U-shaped contour.

According to 2 It is illustrated that the undercut 103 and thus the second wall section 108 have an apex region 106 which is arranged vertically upwards in the manufacturing position of the formwork. In other words, the apex region 106 comprises a high point at which air can collect during manufacturing, more specifically when filling the formwork. In 2 The schematically illustrated air bubble is shown as an example between the second wall section 108 and the underlying extension 12. This leads, as in 2 shown, to a weakening of the material at the extension 12 of the channel 11, ie to a reduction in the wall thickness.

In order to prevent such material weakening, the first end wall 101 has a channel 105, in particular a riser, which forms a passage starting from the undercut 103 through the first end wall 101. In other words, the first end wall 101 has an air channel 105 for discharging air and also for collecting flowable material that accumulates in the undercut 103, specifically in the apex region 106, when the formwork is filled. For this purpose, the channel 105 is connected to the apex region 106. The channel 105 forms a free passage starting from the apex region 106 through the first end wall 101 to the outside.

A method for producing the channel 11 is described below, using the device 100 according to the invention. In a first method step, the side walls and end walls of the device 100 are arranged and aligned on the ground in such a way that a circumferentially closed formwork is formed. The formwork can be open at the top or bottom. This depends on the type of filling. The undercut 103 of the first end wall 101 faces the interior 104 of the formwork.

Subsequently, in a second process step, the interior 104 of the formwork is filled from above or from below with a flowable material, preferably a flowable Concrete material, more preferably polymer concrete, such that the flowable material fills the undercut 103. Air that accumulates in the undercut 103 during filling is discharged through the channel 105 of the first end wall 101. Once the accumulated or trapped air has been completely discharged through the channel 105, the flowable material flows into the channel 105 and rises therein.

After filling, in a third process step, the flowable material hardens to form a solid, solidified channel 11 and the hardened channel 11 is formed. Because the flowable material remains in the channel 105 even during hardening, the material also hardens in the channel 105 and forms a tenon 16, which will be discussed in more detail later. During the forming process or after the channel 11 has been formed from the formwork, the tenon 16 is removed from the extension 12 of the channel 11, for example by breaking it off. This process produces a stable extension 12, i.e. without material weakening caused by air inclusion, with a high surface quality.

In 3 different schematic embodiments are shown how the channel 105 of the first end wall 101 can be realized. Specifically, 3 A total of four variants, which are described below starting from the left.

At a first in 3 In the variant shown, the channel 105 runs from a transition between the first and second wall sections 107, 108 into a receiving space 110, in particular a receiving basin, of the first end wall 101. The receiving space 110 can be a concrete trap. The receiving space 110 is designed such that, on the one hand, air can be discharged and, on the other hand, flowable material emerging from the channel 105 can be absorbed when filling the formwork.

In a second variant, the channel 105 runs from a transition between the first and second wall sections 107, 108, rising upwards through the first end wall 101 to the outside. In other words, according to the second variant, the channel 105 penetrates the first end wall 101 at an angle upwards. The channel 105 can run at an angle between 0° and 90°, preferably 45°, relative to a horizontal, imaginary reference plane.

In a third variant, the channel 105 runs vertically upwards from the second wall section 108, with the inside of the channel 105 being flush with the first wall section 107. In a third variant, the channel 105 runs vertically upwards, as in the third variant, bordering the inside of the second wall section 108 and extending partially into the first wall section 107. As a result, the trapped air is not only discharged at the top through the second wall section 108, but also laterally through the first wall section 107.

All four variants according to 3 have in common that the channel 105 is connected to the apex region 106 and adjoins it without dead space. As a result, air trapped during a filling process is completely discharged from the apex region 106.

According to the 5a until 11b Further variants relating to the design or arrangement of the channel 105 are shown by means of pins 16 on the extension 12 of the channel 11, which were produced by the channel 105. The pins 16 show the complementary shape to the respective channel 105. The pins 16 are formed by flowable material, in particular concrete material, which rose up in the channel 105 when the formwork was filled and then solidified.

5a and 5b show a pin 16 which is formed on the front side of the extension 12 and runs obliquely upwards. The channel 105 of the associated first end wall 101 runs upwards from the first wall section 107 to produce the pin 16. The channel 105 preferably runs at an angle of 45° relative to a horizontal, imaginary reference plane. The channel 105 preferably adjoins the transition between the first and second wall sections 107, 108. Since, as in 5a As shown, the pin 16 is cylindrical, it follows that the channel 105 has a continuously circular cross-section.

According to the 6a and 6b a funnel-shaped pin 16 is shown, which is formed on the front side of the extension 12 and runs diagonally upwards. The channel 105 widens diagonally upwards starting from the apex region 106 of the undercut 103. The channel 105 preferably adjoins the transition between the first and second wall sections 107, 108. Since the pin 16 is funnel-shaped, it follows that the channel 105 has a, in particular complementary, funnel-shaped course through the first end wall 101.

Further alternative cross-sectional shapes of the pin 16 and thus of the channel 105 of the first end wall 101 are shown in the 7 and 8 shown. According to 7 the channel 105 has a kidney shape 13 and according to 8 a slotted hole shape 14. At this point, it is pointed out that the cross-sectional shape of the channel 105 is not limited to those mentioned above, but other cross-sectional shapes are possible within the scope of the invention.

9 represents a pin 16 which is formed on the front side of the extension 12 and, like the pins 16 according to 5a to 8 , runs obliquely upwards. In contrast to the above-mentioned, the pin 16 according to 9 at its root 15 a material constriction. This material constriction is a predetermined breaking point for simplified removal of the tenon 16 during or after the formation of the channel 11 from the formwork, in particular the first end wall 101. This results in the channel 105 having a cross-sectional narrowing with a subsequent cross-sectional widening in the area of the first wall section 107. In cross-section, the tenon 16 has a circular shape.

In the 10 Several cylindrical pins 16 are shown, which are attached to the extension 12 at the front, as in 5a to 8 The associated first end wall 101 has several, in particular smaller, channels 105 for its manufacture, each of which forms a passage through the first end wall 101. In the specific case, the first end wall 101 has three cylindrical channels for discharging air and receiving a cast material, in particular flowable material. The channels 105 are, as can be seen from 10 removable, arranged next to each other essentially in a horizontal plane. A different arrangement of the channels 105 is possible.

The 11a and 11b show another possible arrangement of the channel 105. The pin 16 according to 11a and 11b is formed on top of the extension 12. This means that the channel 105 of the first end wall 101 connects to the second wall section 108 in the apex area 106 in order to discharge air or to receive the casting material. The pin 16 according to 11a and 11b is cylindrical, which means that the channel 105 of the first end wall 101 is also cylindrical.

At this point it is pointed out that the features of the embodiments described above can be freely combined with one another within the scope of the invention.

• Ein Verfahren zur Herstellung eines Entwässerungsgegenstandes 10, insbesondere einer Rinne 11 oder eines Punktablaufes, unter Verwendung einer Vorrichtung 100 mit einem Boden, zwei Seitenwänden und zwei Stirnwänden 101, die eine Außenform des Entwässerungsgegenstandes 10 abbilden, und wenigstens einem Kern 102, der auf dem Boden angeordnet ist und eine Innenform, insbesondere eine Entwässerungsoberfläche 19, des Entwässerungsgegenstandes 10 abbildet, wobei wenigstens eine der beiden Stirnwände 101 eine Hinterschneidung 103 zur Bildung eines Fortsatzes 12 des Entwässerungsgegenstandes 10 aufweist, wobei das Verfahren folgende Schritte umfasst:
  • - Anordnen der Seitenwände und der Stirnwände 101 an dem Boden derart, dass eine umlaufend geschlossene und nach oben offene Form gebildet wird, wobei die Hinterschneidung 103 der wenigstens einen Stirnwand 101 dem Inneren 104 der Form zugewandt ist;
  • - Befüllen des Inneren 104 der Form mit einem flüssigen Werkstoff, insbesondere Betonwerkstoff, derart, dass der flüssige, insbesondere fließfähige, Werkstoff die Hinterschneidung 103 ausfüllt, wobei durch wenigstens einen Kanal 105 der Stirnwand 101 Luftblasen, die sich beim Befüllen in der Hinterschneidung 103 ansammeln, abgeführt werden;
  • - Aushärten des flüssigen Werkstoffs zur Bildung des Entwässerungsgegenstandes 10 und Ausformen des ausgehärteten Entwässerungsgegenstandes 10.
• Eine Vorrichtung 100 zur Herstellung eines Entwässerungsgegenstandes 10, insbesondere einer Rinne 11 oder eines Punktablaufs, mit einem Boden, zwei Seitenwänden und zwei Stirnwänden 101, die an dem Boden zur Bildung einer geschlossenen Form angeordnet oder anordenbar sind, und wenigstens einem auf dem Boden angeordneten Kern 102, wobei wenigstens eine der beiden Stirnwände 101 eine Hinterschneidung 103 zur Bildung eines Fortsatzes 12 des Entwässerungsgegenstandes 10 aufweist,
• dadurch gekennzeichnet, dass
• die wenigstens eine Stirnwand 101 wenigstens einen Kanal 105 zum Abführen von Luftblasen aufweist, der wenigstens einen Durchgang durch die Stirnwand 101 ausgehend von der Hinterschneidung 103 bildet.

In addition, the following embodiments are disclosed:

• A method for producing a drainage object 10, in particular a gutter 11 or a point drain, using a device 100 with a base, two side walls and two end walls 101, which depict an outer shape of the drainage object 10, and at least one core 102, which is arranged on the base and depicts an inner shape, in particular a drainage surface 19, of the drainage object 10, wherein at least one of the two end walls 101 has an undercut 103 for forming an extension 12 of the drainage object 10, wherein the method comprises the following steps:
  • - arranging the side walls and the end walls 101 on the base in such a way that a circumferentially closed and upwardly open mold is formed, wherein the undercut 103 of the at least one end wall 101 faces the interior 104 of the mold;
  • - filling the interior 104 of the mold with a liquid material, in particular concrete material, such that the liquid, in particular flowable, material fills the undercut 103, wherein air bubbles which accumulate in the undercut 103 during filling are discharged through at least one channel 105 of the end wall 101;
  • - curing the liquid material to form the drainage object 10 and molding the cured drainage object 10.
• A device 100 for producing a drainage object 10, in particular a gutter 11 or a point drain, with a base, two side walls and two end walls 101, which are arranged or can be arranged on the base to form a closed shape, and at least one core 102 arranged on the base, wherein at least one of the two end walls 101 has an undercut 103 to form an extension 12 of the drainage object 10,
• characterized in that
• the at least one end wall 101 has at least one channel 105 for discharging air bubbles, which forms at least one passage through the end wall 101 starting from the undercut 103.

list of reference symbols

10

drainage object

11

gutter

12

appendix

13

kidney shape

14

slotted shape

15

root

16

cones

17

side walls of the gutter

18

gutter bottom

19

drainage surface

21

front sides

22

seal

23

deepening

100

device

101

bulkhead

102

core

103

undercut

104

interior of the mold

105

channel

106

vertex area

107

first wall section

108

second wall section

109

web

110

recording room

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• JP H11291231 A [0002]
• EP 0009056 A1 [0002]
• WO 2017144501 A1 [0003]

Claims (14)

Method for producing a drainage object (10), in particular a channel (11) or a point drain, using a device (100) with a base, two side walls and two end walls (101) which depict an external shape of the drainage object (10), and at least one core (102) which depicts an internal shape, in particular a drainage surface (19), of the drainage object (10), wherein at least one of the two end walls (101) has an undercut (103) for forming an extension (12) of the drainage object (10), wherein the method comprises the following steps: - arranging the side walls and the end walls (101) on the base in such a way that a circumferentially closed shape is formed, wherein the undercut (103) of the at least one end wall (101) faces the interior (104) of the mold; - Filling the interior (104) of the mold with a flowable material, in particular concrete material, such that the flowable material fills the undercut (103), wherein air and/or the flowable material which accumulates in the undercut (103) during filling is discharged through at least one channel (105) of the front wall (101); - Hardening the flowable material to form the drainage object (10) and molding the hardened drainage object (10). procedure according to claim 1 , characterized in that during arrangement the at least one end wall (101) is aligned such that the channel (105) runs rising, horizontally or falling starting from the undercut (103). procedure according to claim 1 or 2 , characterized in that during arrangement the at least one end wall (101) is aligned such that an apex region (106) of the undercut (103) is located at the top in the vertical direction, wherein the channel (105) adjoins the apex region (106). Method according to one of the preceding claims, characterized in that during filling the flowable material flows from the undercut (103) into the channel (105) and preferably rises therein. Method according to one of the preceding claims, characterized in that during filling at least one intermediate region between the base and the core (102) is filled with the flowable material, wherein air and/or flowable material which accumulates in the intermediate region during filling is discharged at least through the core (102) through at least one further channel. Device (100) for producing a drainage object (10), in particular a gutter (11) or a point drain, with a base, two side walls and two end walls (101) which are or can be arranged on the base to form a closed shape, and at least one core (102), wherein at least one of the two end walls (101) has an undercut (103) for forming an extension (12) of the drainage object (10), characterized in that the at least one end wall (101) has at least one channel (105) for discharging air and/or for receiving a flowable material, which forms at least one passage through the end wall (101) starting from the undercut (103). Device (100) according to claim 6 , characterized in that the channel (105) in the end wall (101) runs rising or falling from the undercut (103), in particular vertically or at an angle between 0° and 90°, preferably 45°, or horizontally. Device (100) according to claim 6 or 7 , characterized in that the channel (105) adjoins an apex region (106) of the undercut (103). Device (100) according to one of the Claims 6 until 8 , characterized in that the channel (105) is funnel-shaped, wherein the channel (105) widens or narrows starting from the undercut (103), or the channel (105) is cylindrical. Device (100) according to one of the Claims 6 until 9 , characterized in that the channel (105) has a shape deviating from a circular cross-sectional shape, in particular a kidney shape (13) or an elongated hole shape (14) or an approximately rectangular shape. Device (100) according to one of the Claims 6 until 10 , characterized in that the at least one end wall (101) has a plurality of channels (105), each forming a channel through the end wall (101) starting from the undercut (103) for discharging air and/or for receiving the flowable material, wherein the channels (105) are preferably arranged next to one another and/or one above the other. Device (100) according to one of the Claims 6 until 11 , especially after claim 10 , characterized in that the undercut (103) comprises a first and a second wall section (107, 108) which are substantially perpendicular to one another, wherein the channel or channels (105) penetrate the end wall (101) starting from the first or second wall section (107, 108). Device (100) according to one of the Claims 6 until 12 , characterized in that the core (102) has at least one channel for discharging air and/or for receiving a flowable material, which is connected to an intermediate region between the base and the core (102) and forms at least one passage through the core (102) starting from the intermediate region. Drainage object (10), in particular a channel (11), a point drain or an inlet box, manufactured by a method according to one of the Claims 1 until 5 .

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