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    • 专利摘要:
    An apparatus for holding a flexible tube during a process of pouring the tube in a casting medium comprises a housing (200) having a receiving space in which the flexible tube is receivable, wherein a tube inlet opening (231) opens into the receiving space. The receiving space has a tube outlet region, wherein the tube is receivable in a first configuration in the receiving space such that it enters the receiving space through the tube inlet opening (231) and exits the receiving space in a first tube outlet region (260) and the tube is in a second configuration is receivable in the receiving space so that it enters the receiving space through the pipe inlet opening (231) and exits a second pipe outlet area from the receiving space, the second pipe outlet area being spaced from the first pipe outlet area (260). When the tube is received, the receiving space is sealed against entry of the casting medium at least in an area surrounding the tube inlet opening (231). The device further comprises a fixing element (261) which fixes a tube received in the receiving space in a fixing position so that it is received in the receiving space in the first configuration, wherein the fixing element (261) is removable, so that the tube in the second configuration Recording room is receivable.
    公开号:CH714060A2
    申请号:CH01028/17
    申请日:2017-08-15
    公开日:2019-02-15
    发明作者:Schneider Thomas；Näf Andreas；Widmer Severin；Krohn Michael
    申请人:R Nussbaum Ag；
    IPC主号:
    专利说明:

    description
    Technical Field The invention relates to a device for holding a flexible tube during an operation for pouring the tube into a casting medium. It further relates to a method for pouring a flexible pipe.
    PRIOR ART When building buildings, pipelines are often poured into a concrete ceiling and then guided into a pretext. Usually there is a change of direction by approx. 90 °. Such pipelines are used in particular for the transport of media, in particular the transport of water or compressed air, but it is also possible, for example, to lay pipes for receiving electrical lines in this way. Flexible pipes are mostly used, which are also often guided in a (also flexible) protective tube. The protective tube is usually designed as a corrugated tube, i.e. the tube wall is wavy.
    For casting, the pipes (if necessary with the protective tube) are laid at the desired locations on the reinforcement, then the casting is carried out with the casting medium, in particular with concrete. At the point of exit from the ceiling, where the pipe is to be led into the front wall, the pipe changes direction by approx. 90 °. Since a formwork for a concrete wall to be created first comes to rest in the area of the front wall, the pipe emerging from the ceiling must be bent away from the future wall during the construction of the formwork and the pouring of the concrete wall. For this purpose, a slot-like opening is left open in the area of the exit point of the pipe, which allows the pipe to be positioned both in a bent position and in the final position, parallel to the concrete wall.
    In order to avoid the slit-like opening, a suitable, again removable material in a suitable geometry is positioned adjacent to the outlet point of the pipeline before the casting of the concrete ceiling, suitably cut blocks made of foamed polystyrene are often used. After pouring the ceiling, this material is scraped out.
    The cutting of the polystyrene blocks is time-consuming and prone to errors, especially due to the limited space, often insufficient lighting and dust. Scrapping also takes a lot of time and care must be taken to ensure that the adjacent cast-in pipeline is not damaged. If the polystyrene blocks are too large, there is a risk that the structure of the concrete ceiling will be unduly weakened.
    DESCRIPTION OF THE INVENTION The object of the invention is to create a device belonging to the technical field mentioned at the outset, which enables faster and safer pouring of pipelines in the region of an exit point.
    The solution to the problem is defined by the features of claim 1. According to the invention, the device comprises
    a) a housing with a receiving space in which the flexible tube can be received, a tube inlet opening opening into the receiving space, the tube being able to be received in the receiving space in a first configuration such that it enters the receiving space through the tube input opening and in a first Pipe exit area emerges from the receiving space and the tube can be received in a second configuration in the receiving space in such a way that it enters the receiving space through the tube entrance opening and a second tube exit area emerges from the receiving space, the second tube exit area being spaced apart from the first tube exit area, the receiving space when the pipe is picked up, it is sealed against ingress of the casting medium at least in an area surrounding the pipe inlet opening;
    b) a fixing element which, in a fixing position, fixes a tube received in the receiving space in such a way that in the first configuration it is received in the receiving space, the fixing element being removable, so that the tube in the second configuration can be received in the receiving space.
    [0008] The casting medium is, in particular, concrete. Use in combination with other media, e.g. Casting materials for seamless floors is also possible. As mentioned above, the pipe to be accommodated can in particular be a guide pipe for electrical lines or a pipe for transporting media, e.g. trade for water or compressed air. The invention is particularly suitable for laying flexible water pipes, e.g. made of PEx (cross-linked polyethylene), which are surrounded by a corrugated pipe.
    The seal of the housing to the outside and the tube inlet opening to the tube outer surface is such that the casting medium can not get into the receiving space of the housing during the pouring. This remains
    CH 714 060 A2 is therefore essentially free even after the pipe (and thus the housing) has been poured in. The tightness must therefore be guaranteed up to the hydrostatic pressure of the casting medium at the appropriate height.
    [0010] According to claim 14, a method for pouring a flexible pipe comprises the following steps:
    a) positioning a housing so that its height expansion fills an area which extends at least from a feed height of the flexible tube to a maximum casting height;
    b) inserting the flexible tube into the housing so that the tube enters a receiving space of the housing through a tube inlet opening and exits the receiving space in a tube exit area;
    c) positioning the tube in the housing such that it emerges from the receiving space in a first tube exit region;
    d) pouring the housing with the accommodated flexible tube; and
    e) repositioning the flexible tube so that it exits the receiving space of the housing through a second tube exit area.
    [0011] These steps do not necessarily have to take place in the order specified. In particular, the flexible pipe can already be inserted into the housing before the latter is positioned on the reinforcement. The insertion can involve threading as well as lateral insertion (with subsequent closing of the housing). Positioning in the first pipe exit area can also only take place after the housing has been cast in, e.g. to enable the creation of formwork for a wall and the subsequent pouring of the wall.
    The insertion of the flexible pipe and the positioning so that it emerges from the receiving space in the first pipe exit area can be done in a single operation. This saves one work step.
    The feed height of the flexible pipe is the lowest point of the pipe when entering the housing.
    The housing used in the process according to the invention is, in particular, a housing of a device according to claim 1.
    Advantageously, before repositioning, the tube is held in the receiving space by a fixing element such that it exits through the first tube exit area. The fixing element will be removed later to allow repositioning.
    The device according to the invention serves to fix and support the pipe during the pouring. The device according to the invention and the method according to the invention enable pipes to be poured in quickly and reproducibly. In the first configuration, i.e. Before repositioning the flexible pipe, it must be directed away from the area of the wall to be created (or the formwork used for this). This protects the pipes from damage when creating the formwork and the wall, and ensures that the pipes do not hinder these steps.
    In contrast to ad hoc solutions, the solution according to the invention ensures a defined statics, i.e. the position and volume of non-concreted sections is clearly defined and can be systematically taken into account when designing and placing reinforcements.
    The repositioning is made possible after a simple action, namely the removal of the fixing element. After repositioning, in the second configuration, the pipe assumes its final desired position (in the pretext).
    When removing the fixing element, all or part of the element is removed from an area in which the element or part interacts with the received tube. The tube can then be moved into its second configuration, it can also move there by itself due to its elasticity. The fixing element can be completely detached from the device, but it can also only be pushed away or pivoted away and remain on the device.
    Preferably, the housing is designed so that pressure of the casting medium is prevented from the pipe. For this purpose, the housing is preferably made of a dimensionally stable material which does not deform significantly during the pouring process.
    The fixing element is advantageously formed by a closure element that can be separated from the housing. The closure element ensures that the housing is protected against penetration of the casting medium in the first configuration. After casting and, if necessary, the creation of the wall adjacent to the pipe exit point, the closure element can be separated so that the pipe can be moved into the second pipe exit area. If necessary, due to its elasticity, it moves there automatically after the closure element has been removed.
    The detachable closure element is preferably a part of the housing which is connected to the rest of the housing via a weakening point. The detachable part can, for example, be a tab
    CH 714 060 A2. The separation is made easier if the closure element has an easily graspable section. The closure element, this section and the housing or a housing part can be formed in one piece, in particular from a plastic material.
    Alternatively, the fixing element is a component which does not simultaneously act as a closure, e.g. around a pin that can be fixed by inserting it into one or more bores, around a slide guided in grooves or around a pivoting element that can be pivoted out of a fixing position.
    Preferably, the pipe entry opening defines a pipe entry direction, the first pipe exit area defines a first pipe exit direction, and the second pipe exit area defines a second pipe exit direction. A second angle between the tube entry direction and the second tube exit direction is 85-95 °, and a first angle between the tube entry direction and the first tube exit direction is smaller than the second angle, in particular at least 5 ° smaller than the second angle. The pipe entry direction and the first and second pipe exit directions are defined as local axial directions of the pipe at the corresponding entry or exit point of the housing.
    The tube thus takes the desired direction parallel to the wall in the second configuration, so that it can be guided in the pretext. In the first configuration, it is directed away from the (future) wall or formwork, but the curvature is such that a minimum radius of curvature - depending on the pipe - is not undershot and damage to the pipe is avoided.
    In the first configuration, the positioning of the tube led out of the top of the housing can be supported by an external holding device. The pipe can, for example, be fixed to a vertically rising reinforcing iron, for example with the help of cable ties. The reinforcing iron can be attached to the housing or independently, e.g. attached to the reinforcement for the concrete ceiling.
    Preferably, the housing is sealed against the casting medium in a tube accommodated according to the first configuration in the receiving space over at least 80% of an expansion in height of the housing. The height expansion extends perpendicular to the pipe entry direction in a plane defined by the pipe received in the first configuration; it is also defined by a first housing wall in the area of the pipe inlet opening and a second housing wall in the area of the first pipe exit area. The casting medium can be poured accordingly up to the mentioned height, and the housing protrudes only slightly or not at all over the cast ceiling surface. If necessary, the excess can be removed after casting, e.g. cut away or cut along a line of weakness.
    The housing is particularly preferably sealed on all sides against the casting medium in a tube accommodated in the receiving space according to the first configuration. It can therefore be poured in completely. It is important to ensure that a layer of cast material covering the top of the housing does not exceed a certain thickness so that the removal of the fixing element is not impossible.
    Preferably, the receiving space is designed such that it allows a continuous movement of a tube inserted into the housing from the first to the second configuration. The received tube can thus be moved easily into the exit area according to the second configuration, if necessary after removing the fixing element.
    One dimension of the housing can advantageously be changed in such a way that a distance between the pipe inlet opening and the second pipe outlet region is changed. This enables the housing to be adapted to the intended thickness of the cast ceiling. This means that several ceilings can be optimally covered with one housing.
    For this purpose, the housing preferably comprises an inner part and an outer part, which are adjustable relative to one another along the changeable dimension. The outer part can be adjustably supported on the top of the inner part, or the inner part can be adjustably supported on the top of the outer part.
    [0032] A catch is particularly preferably formed between the inner part and the outer part. This enables the relative position of the two parts to be fixed and prevents unintentional adjustment, for example due to the buoyancy forces during the pouring.
    In devices in which a height adjustment of the housing is not possible, different housings can be provided depending on the thickness of the ceiling, or the housing height is selected so that the housing still protrudes from the ceiling even after casting. If necessary, the protruding part can be cut off or cut off as mentioned above.
    A fastener for fastening the housing to a formwork and / or a reinforcement is advantageously connected to the housing. Accordingly, the method according to the invention comprises the additional step of fastening the housing to a formwork and / or to a reinforcement. The attachment can be done using common means, or with the help of cable ties, nails or clips.
    Alternatively, the housing position is fixed, in particular, by fastening the tube to the formwork or to the reinforcement. Indirectly, the housing is also held in the desired position.
    CH 714 060 A2 [0036] The fastening means is preferably formed by a base plate onto which the housing can be plugged. The plug connection is designed in particular in such a way that it cannot be released or can only be released with increased expenditure of force, so that the forces acting during casting cannot lead to the housing being detached from the base plate. For this purpose, the plug connection includes, for example, a latching. The base plate only takes up a small height and thus avoids a substantial weakening of the cast ceiling. At the same time, it enables the housing to be easily attached to an underlying structure, in particular in an area outside the housing base.
    Advantageously, the base plate is perforated. This prevents the base plate from floating due to the buoyancy of the casting medium. Furthermore, the material expenditure for the base plate is reduced and the proportion of the cast casting medium in the area of the device according to the invention is maximized.
    Advantageously, at least two housings can be plugged next to one another on the base plate. Several tubes can thus be positioned in a defined arrangement.
    Preferably, it is also possible to connect two base plates to one another in such a way that their main planes are aligned with one another. This means that a larger number of pipes can be led out of the ceiling in an exit area, the mutual distances being predetermined by the geometry of the base plates and the housing.
    After creating the adjacent wall and repositioning the pipe in the second pipe exit area, the receiving space can be poured out with a suitable medium. As the medium, the casting medium or another medium, e.g. a subfloor or construction foam can be used. This improves sound insulation in particular.
    In a preferred embodiment, the housing is L-shaped, the tube inlet opening being arranged in the region of a horizontal leg and the two tube outlet regions being arranged in the region of a vertical leg. As a result, the housing has a reduced overall height in the area of the pipe inlet opening, which makes it possible to pull reinforcement bars running horizontally in this area above the horizontal leg. The area not provided with reinforcements can be minimized in this way. Accordingly, weakening of the structure in the area of the pipe outlet is largely avoided.
    The geometry of a base plate can be selected such that housings arranged adjacent to it have a defined distance, this distance also being maintained when arranged on base plates which are fastened to one another. It is then also possible to pull reinforcement bars between the adjacent housings. In combination with the L-shaped housing, there is a maximum area that cannot be provided with reinforcing bars that corresponds to the cross-section of the vertical leg. This area is thus minimized and, despite the pipe exits, a statically safe ceiling with predictable properties can be created.
    From the following detailed description and the entirety of the claims, further advantageous embodiments and combinations of features of the invention result.
    BRIEF DESCRIPTION OF THE DRAWINGS The drawings used to explain the exemplary embodiment show:
    Fig. 1 is an oblique view of a base plate of an inventive device for holding a flexible tube during a process for pouring the tube in a casting medium;
    Figure 2 is an oblique view of the base plate with the lower housing part attached, only one housing half being shown;
    3 shows an oblique view of the base plate with the lower housing part attached;
    Figure 4 is an oblique view of the base plate with the lower housing part and housing cover.
    5 shows the view according to FIG. 4, adapter sleeves for a thinner tube being inserted into the housing;
    6 shows a schematic illustration of the pipe run in a first and a second configuration;
    7 shows an oblique view of the base plate with an attached housing of greater overall height;
    8 shows an oblique view of two base plates fastened to one another with two housings attached;
    9 shows a schematic illustration of a first step of a method according to the invention for pouring a flexible tube;
    10 shows a schematic illustration of a second step of the method according to the invention;
    11 shows a schematic illustration of a third step of the method according to the invention; and
    CH 714 060 A2
    12 shows a schematic illustration of a fourth step of the method according to the invention.
    In principle, the same parts are provided with the same reference symbols in the figures.
    WAYS OF IMPLEMENTING THE INVENTION FIG. 1 shows an oblique view of a base plate of a device according to the invention for holding a flexible tube during a process for pouring the tube into a casting medium. The device shown is intended in particular for pouring water supply lines with an inner tube diameter of, for example, 16 or 20 mm.
    [0046] The base plate 100 is made in one piece from plastic by an injection molding process. It has a rectangular basic shape with a length of approx. 34 cm and a width of approx. 11 cm, has a surrounding frame 101 and ribbing 102 arranged in the frame, so it has multiple openings. The base plate 100 is essentially symmetrical along its longitudinal center line, so that - as explained below - two housings can be plugged onto a base plate.
    On its long sides, near the end regions, the base plate has two coupling elements, on one side there are two pins 110, 111, on the other side two insertion grooves 112, 113 with a keyhole profile. The pins 110, 111 are divided vertically so that they can be elastically compressed along the longitudinal direction of the base plate 100. The pins 110, 111 can be inserted from above into the insertion grooves 112, 113 of a further base plate, the pins 110, 111 being temporarily compressed during the insertion and partially expanding again after reaching the final fit, so that the two base plates are both horizontal and are securely connected to one another in the vertical direction (see also FIG. 8). The main surfaces of the two base plates are aligned with one another, and in principle any number of base plates can be connected to one another along their long sides.
    In the area of a first longitudinal end, the base plate 100 has two receptacles 121, 122 symmetrically to the central longitudinal axis for attaching a fastening dome 130. 1 shows one of these fastening mandrels 130. In the area of the opposite second longitudinal end, the base plate 100 - again symmetrical to the central longitudinal axis - has two receptacles 141, 142 for attaching a fastening clip 150. 1, only one such fastening clip 150 is shown.
    At the bottom of the base plate 100, a total of six feet 160 are arranged, the base plate 100 and the feet 160 are also provided with continuous nail holes 161. If the base plate is nailed to a formwork plate, only feet 160 penetrate to the underside of the ceiling after casting, this is particularly relevant for exposed concrete ceilings.
    The frame 101 of the base plate 100 also has elongated through openings 162. Instead of nailing with a formwork plate (or in addition to it), the base plate can be attached to the (under) reinforcement, in particular by means of cable ties which are looped through these through openings 162.
    On the base plate there is also a receptacle 170 into which a reinforcing iron can be inserted at one end so that it extends vertically to the main surface of the base plate. As explained below, the reinforcing iron enables the pipe to be fastened during the pouring process and subsequent work steps until the pipe can assume its final position in the pretext.
    2 shows an oblique view of the base plate with the lower housing part attached, only one housing half being shown, and FIG. 3 shows an oblique image of the base plate with the lower housing part attached. The lower housing part 210 of the housing 200 is composed of two housing halves 211, 212, which are each made in one piece from plastic by an injection molding process. The two housing halves 211, 212 are non-detachably held together by a pin connection in the assembled state. The entire housing 200 is also placed on the base plate 100 (cf. FIG. 4). The illustration in FIG. 2 with only one housing half 212 of the lower housing part 210 serves exclusively for illustration.
    The lower housing part 210 is L-shaped, it has a short horizontal leg 221 and a long vertical leg 222, the width of the lower housing part 210 is constant along the entire length and height. In the illustrated embodiment, the length of the horizontal leg 221 is approximately 8 cm, the length of the vertical leg 222 (in extension of the horizontal leg) is approximately 26 cm. The height of the vertical leg 222 is approximately 20 cm. The case is about 4 cm wide. In the area of the horizontal leg 221, the lower housing part 210 is also only 4 cm high.
    The lower housing part 210 defines a tube entrance 231, which has an inner cross section, which is suitable for a corrugated tube with an outer diameter of 28 mm. The axial length of the tube inlet 231 covers at least 2-3 corrugations of the corrugated tube, for example it is 20 mm; the inner cross-section also deviates slightly from a circular shape, so that there is a secure seal between the tube inlet 231 and the outer jacket of the corrugated tube.
    CH 714 060 A2 The pipe entrance 231 opens into a receiving space 232 which is delimited by a front curved transverse wall 233 and a rear curved transverse wall 234 and which continuously widens starting from the pipe entrance 231 to an exit opening 235.
    The lower housing part 210 has in the rear end region, opposite the horizontal leg 221, a receptacle 241 for a fastening mandrel 130 of the base plate 100. Ribs 236, 237 for stiffening the lower housing part 210 are arranged between this receptacle 241 and the rear curved transverse wall 234 and between a front wall of the lower housing part 210 and the front curved transverse wall 233.
    The housing 200 is placed with the lower housing part 210 on the fastening mandrel 130 until it snaps firmly into the receptacle 241. At the same time, the lower housing part 210 is securely held on the fastening clip 150 in the region of its horizontal leg 221. When the housing 200 is plugged on, a click can be clearly heard, so that the installer knows that the housing 200 is correctly attached to the base plate 100. This results in a connection with the base plate 100 that is firm in both the horizontal and vertical directions. This avoids inadvertent separation of the housing 200 from the base plate 100, for example due to buoyancy forces of the casting medium.
    4 shows an oblique view of the base plate with the lower housing part and the housing cover, FIG. 5 shows the view according to FIG. 4, adapter sleeves for a thinner tube being inserted into the housing.
    The housing cover 250 is constructed from two cover halves 251, 252, which are each made in one piece from plastic by an injection molding process. The two cover halves 251, 252 are held together in a non-detachable manner via a pin connection. The housing cover has a substantially rectangular base area and can be slid onto the vertical leg 222 of the lower housing part 210 in a suitable manner. The housing cover 250 has a tube outlet opening 260 on its upper side. This is suitable for a corrugated pipe with an outside diameter of 28 mm. It is delimited by the two cover halves 251, 252, part of the delimitation being formed by a tab 261. The tab 261 is formed in one piece with the one cover half 251, a weakening line with a reduced material cross section being formed between the tab and this cover half 251. In the area of the tube outlet opening 260, an opening ring 262 is also formed in one piece with this cover half 251. The geometry of the two cover halves 251, 252, including the tab 261, is selected so that the elements fit precisely in the assembled state and are sealed against the casting medium (here concrete). Overlapping surfaces and / or tongue and groove connections are provided for this purpose.
    Lugs 271, 272 are also formed on both long sides of the housing cover 250. They are integrally formed on one half of the cover 251 and have a certain elasticity due to their geometry. The locking lugs interact with a respective locking profile 245, 246 on the long sides of the lower housing part 210.
    The latching profiles 245, 246 are designed as horizontal grooves. They ensure that the housing cover 250 is placed horizontally and, together with the geometry of the inner walls of the housing cover 250 interacting therewith, ensure that the interior of the housing 200 is sealed against the casting medium.
    If, instead of a tube with a diameter of 20 mm, which is accommodated in a corrugated tube with an outside diameter of 28 mm, a thinner tube with a diameter of 16 mm and an outside corrugated tube diameter of 25 mm is used, then in the Pipe inlet 231, an adapter sleeve 238 and an adapter sleeve 268 are inserted into the tube outlet opening 260. The two adapter sleeves 238, 268 are of identical design, they have an outer diameter of 28 mm which fits into the respective opening, and an inner diameter of 25 mm. The axial length of the adapter sleeves 238, 268 covers at least 2-3 shafts of the corrugated tube, for example it is 20 mm; the inner cross section also deviates slightly from a circular shape, so that there is a secure seal between the adapter sleeve 238, 268 and the outer jacket of the corrugated tube.
    The adapter sleeves 238, 268 comprise two foldable halves which are connected to one another via a hinge-like connection. In the open position, they can be easily pushed over the side of the tube and then closed. The tube can thus first be drawn into the housing 200, and only then are the adapter sleeves 238, 268 pushed on, closed and pushed into the tube inlet 231 or the tube outlet opening 260 in order to seal the receiving space in the housing 200 against the casting compound.
    Fig. 6 is a schematic representation of the pipe run in a first and a second configuration. The pipe 10 lies according to the pipe run 11 (1st configuration) in the housing 200 if the outlet of the pipe 10 is defined by the pipe outlet opening of the housing cover 250. The tube 10 lies essentially against the front curved transverse wall 233. Its end emerging from the housing 200 at the top is directed vertically or even slightly forward, in the direction of the tube inlet 231.
    After pouring in, the tab can be torn away with the help of the opening ring, the tab loosening along the line of weakness from the corresponding lid half. Due to its elasticity, the pipe 10 will then take the pipe course 12 (2nd configuration) and essentially abut the rear curved transverse wall 234. The end of the pipe emerging from the housing 200 is directed slightly backwards. It can easily be continued vertically in a pretext after exiting the housing and thus after exiting the ceiling.
    CH 714 060 A2 The geometry of the housing 200 ensures that a minimum bending radius is not undershot in both configurations.
    7 shows an oblique view of the base plate with an attached housing of greater overall height. The base plate 100 can accommodate housings of larger and smaller heights. The only difference between the housing 200 'shown in FIG. 7 and the housing 200, which is shown in FIGS. 4 and 5, is the overall height, both the lower housing part and the cover being of different heights. While a height of 20-30 cm can be set between the underside of the base plate 100 and the upper surface of the housing 200 with a lower overall height depending on the vertical position of the housing cover 250, when using the housing 200 'it is possible with a greater overall height depending on the vertical position of the Housing cover 250 'a height of 25-40 cm. Depending on the thickness of the ceiling, the right housing can be used. The system thus covers ceiling thicknesses of 20-40 cm.
    8 shows an oblique image of two base plates fastened to one another with two attached housings. As described above, several base plates 100.1, 100.2 can be fastened to one another via the corresponding pins and insertion grooves. A maximum of two housings can be accommodated per base plate. Several pipes to be led out in parallel from a ceiling can thus be guided at a defined distance.
    When several housings are arranged, a space of 13 mm is left between the housings, so that casting compound (in particular concrete) can be poured in and reinforcements are also possible - the maximum required cutout in the reinforcement thus corresponds to the cross section of the housing cover.
    Figures 9-12 schematically illustrate steps of a method according to the invention for pouring a flexible pipe, e.g. using the devices described in connection with FIGS. 1-8.
    First, the base plate is fastened with the help of cable ties on the horizontal network 21 of the reinforcement 20 as stiff as possible. When using the device according to FIGS. 1-8, the through openings in the frame can be used for this. The tube 10 is guided through the associated housing 200, the location of the tube outlet from the top of the housing 200 being uncritical in this phase. The tube 10 can be threaded before the housing cover is attached to the lower housing part, which facilitates the process. The housing 200 is then plugged onto the base plate and thereby fixed. The attachment can easily be done after the base plate has been attached to the reinforcement 20 and the pipe has been threaded. The height of the housing used is selected depending on the ceiling thickness. If necessary, the adapter sleeves suitable for the tube thickness are already attached to the tube before or after the tube is inserted and finally guided into the intended position on the housing. This is made easier by the split design of the adapter sleeves.
    When using the device according to FIGS. 1-8, in this phase the tube outlet is defined by the tube outlet opening in the housing cover, the tube is in the first configuration and is bent away from the rear wall of the housing (dashed line). When using differently constructed devices, the tube can also run in this phase in accordance with the second configuration and can be guided in the housing 200 with a minimal curvature. In both cases, due to the geometry of the housing, a minimum bending radius of 5 D is maintained, where D indicates the pipe diameter of the inner pipe. Specifically, with a diameter of the inner tube of 16 mm, the protective tube diameter is 25 mm and the minimum bending radius is 80 mm. With a diameter of the inner tube of 20 mm, the protective tube diameter is 28 mm, the minimum bending radius is 100 mm.
    Now the height of the housing cover is adjusted so that its top is at a height that corresponds approximately to the predetermined ceiling height, and positioning up to about 0.5 cm below this height is also problem-free. The position of the housing cover is fixed due to the locking between the locking profiles on the lower housing part and the locking lugs on the housing cover. The position of a housing cover that has already been pushed too far onto the lower housing part can be easily corrected again by pushing the locking lugs slightly outwards away from the lower housing part. The situation shown schematically in FIG. 9 results.
    Next, the ceiling is concreted, the situation according to FIG. 10 results, the housing 200 being essentially enclosed on all sides by a concrete layer 30. However, the layer covering the top of the housing 200 is very thin; if the height of the housing cover is set correctly, the thickness there is at most 0.5 cm.
    If the tube is not already in the first configuration at this time, it is now positioned accordingly. The formwork 40 can now be easily attached to the cast ceiling and a vertical wall can be concreted (see FIG. 11).
    After the formwork has been removed, the pipe can be released so that it adopts the second configuration and, starting from the housing 200, extends essentially vertically along the cast wall 50. When using the device according to FIGS. 1-8, the release takes place by tearing off the tab with the aid of the opening ring. Any (thin) concrete layer on the tab is torn away with the tab, but it can also be removed beforehand, e.g. with the help of a screwdriver. Finally, the housing 200 is covered with a suitable mass 60, e.g. a underlay or construction foam. The situation shown in FIG. 12 results.
    CH 714 060 A2 The invention is not restricted to the exemplary embodiment shown. For example, a modular design with base plate and attachable housings can be dispensed with. The adaptation to the thickness of the ceiling can be done in a different way, for example the housing can be formed from vertically superimposed, pluggable elements or a protruding part of the housing is separated, e.g. cut off or broken off along predetermined breaking points. A bellows-like design of the upper housing part is also possible. Finally, it is possible to completely forego the adjustability of the height and to offer various housings that cover the common ceiling thicknesses.
    A housing can be used which protrudes considerably beyond the cast ceiling. In this case, an upward seal is not mandatory and a removable stop can be used instead of the cover. The part protruding from the ceiling is only removed (if necessary at the same time as the stop) when the pipe is to assume its final position.
    The housing can be formed from two half-shells which are connected to one another in a hinge-like manner, so that the tube can be inserted without threading. The housing can also be produced from a flat development by means of folds, as a result of which the required storage space is minimized.
    In summary, it should be noted that the invention provides a device for holding a flexible pipe during a process for pouring the pipe into a casting medium, which device enables a faster and safer pouring of pipes in the area of an exit point.
    权利要求:
    Claims (17)
    [1]
    claims
    1. An apparatus for holding a flexible tube during a process of pouring the tube into a casting medium, comprising:
    a) a housing with a receiving space in which the flexible tube can be received, a tube inlet opening opening into the receiving space, the tube being able to be received in the receiving space in a first configuration such that it enters the receiving space through the tube entrance opening and in a first Pipe exit area emerges from the receiving space and the tube can be received in a second configuration in the receiving space in such a way that it enters the receiving space through the tube entrance opening and a second tube exit area emerges from the receiving space, the second tube exit area being spaced apart from the first tube exit area, the receiving space when the pipe is picked up, it is sealed against ingress of the casting medium at least in an area surrounding the pipe inlet opening;
    b) a fixing element which, in a fixing position, fixes a tube received in the receiving space in such a way that in the first configuration it is received in the receiving space, the fixing element being removable, so that the tube in the second configuration can be received in the receiving space.
    [2]
    2. Device according to claim 1, characterized in that the fixing element is formed by a separable closure element from the housing.
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that the tube inlet opening defines a tube inlet direction, that the first tube outlet region define a first tube outlet direction and that the second tube outlet region define a second tube outlet direction, a second angle between the tube inlet direction and the second tube outlet direction being 8595 ° and wherein a first angle between the pipe entry direction and the first pipe exit direction is smaller than the second angle, in particular at least 5 ° smaller than the second angle.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the housing is sealed against the casting medium in a pipe accommodated according to the first configuration in the receiving space over at least 80% of a vertical expansion of the housing, the vertical expansion being perpendicular to the pipe entry direction in one extends through the plane defined in the first configuration and is defined by a first housing wall in the area of the pipe inlet opening and a second housing wall in the area of the first pipe exit area.
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the housing is sealed on all sides against the casting medium in a tube accommodated according to the first configuration in the receiving space.
    [6]
    6. Device according to one of claims 1 to 5, characterized in that a dimension of the housing can be changed such that a distance between the pipe inlet opening and the second pipe outlet area is changed.
    [7]
    7. The device according to claim 6, characterized in that the housing comprises an inner part and an outer part, which are adjustable relative to each other along the variable dimension.
    [8]
    8. The device according to claim 7, characterized in that a latching is formed between the inner part and the outer part.
    CH 714 060 A2
    [9]
    9. Device according to one of claims 1 to 8, characterized by a fastener connected to the housing for fastening the housing to a formwork and / or a reinforcement.
    [10]
    10. The device according to claim 9, characterized in that the fastening means is formed by a base plate on which the housing can be plugged.
    [11]
    11. The device according to claim 10, characterized in that the base plate is perforated.
    [12]
    12. The apparatus of claim 10 or 11, characterized in that at least two housings can be plugged side by side on the base plate.
    [13]
    13. Device according to one of claims 10 to 12, characterized in that two base plates can be connected to one another in such a way that their main planes are aligned with one another.
    [14]
    14. A method for pouring a flexible pipe, comprising the following steps:
    a) positioning a housing so that its height expansion fills an area which extends at least from a feed height of the flexible tube to a maximum casting height;
    b) inserting the flexible tube into the housing so that the tube enters a receiving space of the housing through a tube inlet opening and exits the receiving space in a tube exit area;
    c) positioning the tube in the housing such that it emerges from the receiving space in a first tube exit region;
    d) pouring the housing with the accommodated flexible tube; and
    e) repositioning the flexible tube so that it emerges from the receiving space of the housing in a second tube exit area.
    [15]
    15. The method according to claim 14, characterized by the additional step of attaching the housing to a formwork and / or to a reinforcement.
    [16]
    16. The method according to claim 14 or 15, characterized in that before repositioning, the tube is held in the receiving space by a fixing element in such a way that it exits through the first tube exit region, and that the fixing element is removed in order to enable repositioning.
    [17]
    17. The method according to any one of claims 14 to 16, characterized by the additional step of pouring out the receiving space after repositioning the tube.
    CH 714 060 A2
    100
    CH 714 060 A2
    CH 714 060 A2
    FO &
    ig. 6 λα
    CH 714 060 A2
    CH 714 060 A2
    200
    200
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    同族专利:
    公开号 | 公开日
    CH714060B1|2021-06-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2020-09-30| PFA| Name/firm changed|Owner name: R. NUSSBAUM AG, CH Free format text: FORMER OWNER: R. NUSSBAUM AG, CH |
    优先权:
    申请号 | 申请日 | 专利标题
    CH01028/17A|CH714060B1|2017-08-15|2017-08-15|Apparatus for holding a flexible pipe during a process of pouring the pipe into a casting medium.|CH01028/17A| CH714060B1|2017-08-15|2017-08-15|Apparatus for holding a flexible pipe during a process of pouring the pipe into a casting medium.|
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