DE102022117377A1 - Winding aid for a winding core for winding up at least one hose of a mobile flood protection or dyke system and winding core - Google Patents

Abstract

The invention relates to a winding aid for a winding core for winding up at least one hose of a mobile flood protection or dyke system, the winding aid having two disk-shaped delimiting elements with an outer circumference and a center point, the two disk-shaped delimiting elements each having a recess around the respective center point and with a longitudinal dimension of around the center point in the direction of the outer circumference, so that before winding, the two disc-shaped delimiting elements of the winding aid can be detachably and non-rotatably attached to two opposite ends of the winding core by means of the recesses and can be removed from the winding core again after winding. Furthermore, the invention relates to a winding core.

Description

The invention relates to a winding aid for a winding core for winding up at least one hose of a mobile flood protection or dyke system, the winding aid having two disk-shaped delimiting elements with an outer circumference and a center.

Coiled goods, such as hoses (fire hoses, oil boom hoses, agricultural or other engineering hoses) and cables (electrical cables, fiber optic cables or other cables) are often wound onto fixed winding cores by hand or by machine for storage and use roll out and/or roll up. Suitable winding cores for this purpose are made of metal, plastic or wood and some have lateral limiting disks for the winding material, which are firmly connected to the winding core and ensure that the winding material is not wound up too close to one of the front ends of the winding core in an undesired manner or slips out of the roll at one of the front ends in a lateral direction. Cable drums are examples of winding cores with such fixed discs.

For the winding process, the diameter of the two limiting disks must be larger than the maximum possible diameter of the winding material, so that the winding material is also brought together to the desired width in the lateral direction during winding. However, this additional diameter leads to a larger space requirement when storing the coiled hoses or cables. With a 20 to 30% larger diameter of the boundary discs, more space is required both in width and in height, so that the space required is about 1.4 to 1.7 times the storage space of the actual winding material. In addition, the attachment of limiting washers to each of the front ends of the winding core causes additional costs.

A winding core of the type mentioned for winding up at least one hose of a mobile flood protection or dike system is in DE 203 20 986 U1 described. These hoses have a diameter of about 0.5 to 5.0 meters.

In contrast to round cables, ropes or thinner hoses, such broader flat hoses from mobile flood protection or dyke systems do not slip out of the coil in a lateral direction after being wound up, or hardly ever unintentionally, because the individual layers of the coil overlap over a large width and thereby clamping each other. However, if the hose is not very carefully aligned perpendicular to the axis of rotation of the winding core during winding, it can still happen that the individual hose layers do not lie congruently on top of each other and after winding, hose sections protrude from the winding at one of the front ends.

A disadvantage of known winding aids is that due to the size and weight of the winding core and the boundary disks on both sides, it is difficult for a single person to mount the two ends of the winding core on one boundary disk each.

DE 20 2012 005 889 U1 discloses a steel drum and tipping car transport system for erecting a mobile flood protection dyke from hoses to be filled with water, in which the steel drum for rolling up and unrolling the hoses via special axes of the drum in the bearing of the tipping car is tilted by tilting the tipping car using leverage by adjusting the drawbar picked up and the tipper tipped back to operational readiness. The axles on both sides are held in an inner flange plate surrounded by an outer flange plate of each sheave of the steel drum.

U.S. 2,143,734A describes spool arms for use on a drum of a drilling rig to form a spool for receiving cables, the cables being connected to tools which are lowered into a borehole. Each coil arm has a top plate and a bottom plate which are pivotally connected together by a link and a spreader. After spreading apart, the drum is received axially in the arcuate recesses of the plates and the spool arm is moved inward along the drum. Opposite the connecting means and the spreading device, the spool arm has a slot for guiding a cable wound on the drum connected to the tool.

US 2003/0 071 160 A1 describes a reeling device for hoses in drilling operations. The retractor has a spool with a drum and edges on both sides. For reinforcement, the drum has a central reinforcement means and radial reinforcement means at its respective end, on which a plate with an elongate slot is fitted. Each slot externally receives one end of an axle of a bobbin stand. Then this slot is closed with a plate to form a central round opening for the axles of the coil stand.

U.S. 2,658,699 A relates to a knitting machine and the winding of warp threads on a warp beam. The warp beam has two collars on both sides to limit the winding area. A thimble tube with a central opening must be slipped over the opposite ends of the warp beam and secured to the respective collar.

US 741 463 A discloses a roll of music for a mechanical player.

The object of the invention is to improve the prior art.

The object is achieved by a winding aid for a winding core for winding up at least one hose of a mobile flood protection or dyke system, the winding aid having two disk-shaped delimiting elements with an outer circumference and a center, and the two disk-shaped delimiting elements each have a recess around the respective Center point and with a longitudinal dimension from around the center point in the direction of the outer circumference, so that before winding, the two disc-shaped delimiting elements of the winding aid can be detachably and/or non-rotatably attached to two opposite ends of the winding core by means of the recesses and can be removed from the winding core again after winding .

A winding aid for a winding core is thus provided in which the two disk-shaped delimiting elements can easily be pushed onto the two-sided front ends of the winding core and, after winding, can be removed from the winding core again due to an elongated recess. This makes it easier to wind up a hose for a mobile flood protection or dyke system and at the same time ensures that the number of hose layers are congruent on top of each other, which, however, do not increase the space required for the coil after winding.

The disc-shaped delimiting elements according to the invention are only releasably attached to the winding core during winding in order to center the winding material on the winding core during winding, so that the individual hose layers come to lie congruently on top of one another even without careful winding. Immediately after the entire winding material has been wound up, the disc-shaped delimiting elements can be removed again and reused when the next winding material is wound onto another winding core, so that most users do not need more than two such delimiting elements in total. In addition, the winding material wound up on the winding core, which is also referred to below as the hose pack, requires less space, namely only the space required by the winding material and the winding core itself.

Because of the relatively large width and overlapping of the individual hoses, the wound-up hose package can be prevented from falling apart during storage and/or transport, or individual hose layers from slipping sideways off the winding core, despite dismantling the two lateral limiting elements.

Due to a respective continuous, elongated recess from the outer circumference to around the center of each of the two disk-shaped delimiting elements, these can be easily plugged onto a winding core already installed on the other side, even by a single person. As a result, the winding core already installed in a trolley, for example, can be supplemented directly with the winding aid in the installed state by attaching the limiting elements and these can also be removed again after winding, without the winding core and/or the trolley having to be converted. In this case, the respective disk-shaped delimiting element is placed on an end section of the winding core on the inside opposite the holder and/or the axle mount of the trolley for the winding core.

The disk-shaped delimiting elements can preferably be mounted on the winding core in such a way that the distance between the two delimiting elements corresponds approximately to the width of the winding material.

An essential idea of the invention is based on the fact that by forming the respective recess with a longitudinal dimension in the two delimiting elements when plugging on, the elongated recess of the respective delimiting element does not have to be positioned exactly in the center of the delimiting element and thus to the central axis of the winding core, but rather the front end of the winding core can be inserted into the oblong recess at an outer distance from the center and then pushed in the direction of the center of the delimiting element so far that the front end of the winding core is in cross-section in the center of the disk-shaped delimiting element.

Thus, the attachability of the two disc-shaped limiting elements is significantly simplified and they can also be simultaneously on the two opposite ends of the Winding core plugged and / or moved to the center of the respective disc-shaped boundary element. By shifting to the center, a non-rotatable attachment can take place at the same time through a frictional and/or form-fitting connection. It is particularly advantageous that due to the elongate design of the recess, both disc-shaped delimiting elements can be pushed onto the two opposite ends of the winding core or the two ends can be inserted into the two recesses.

The following terms are explained:

A "winding aid" is in particular a technical aid for winding hoses and/or other elongated winding material. The winding aid is in particular an additional limiting device which supports the winding and/or rolling up of a long, flexible object. The winding aid has, in particular, two disk-shaped delimiting elements. Furthermore, the winding aid can have a winding core or a winding core for winding up the flexible, elongate object and/or a hose can be assigned to the winding aid. The winding aid with the disc-shaped limiting elements on both sides serves in particular to ensure that a hose of a mobile flood protection or dyke system lies flush with its recorded hose width in each winding layer and is therefore wound up neatly on top of one another. Thus, in its smallest embodiment, the winding aid has the two separate disk-shaped delimiting elements, which are attached on both sides to the opposite front ends and thus to the end sections of the winding core. As a result, the winding aid enables precise, multi-layer winding, in which the wound layers are arranged on the left and right with their edges lying in a substantially straight line.

A “hose” is in particular a flexible, elongated hollow body to be filled with water or another liquid. A hose can in particular have a round or oval cross section when filled. A hose is in particular a flat hose. The hose can be used in particular as part of a mobile flood protection system or dyke system, with the hose preferably being filled directly with the flood water or the water present on the dyke. The filled hose provides, for example, a storage height in a range from 0.5 m to 5.0 m compared to the high water. In particular, the hose has a diameter in a range from 0.5 to 5.0 m. The hose can have a length of 10 m to 100 m, for example.

“Rolling up” is understood to mean, in particular, the rolling up of a flexible, elongated object and/or a hose for a mobile flood protection system or dyke system, running around an axis.

A "winding core" is in particular an object onto which a winding material and/or a hose is wound. The winding core can in particular be an essentially cylindrical object. The winding core can be designed as a roll, a solid cylinder and/or a hollow cylinder. A winding core can also be a coil. The winding core preferably has a plurality of tubes, which are arranged and/or connected at the outer diameter of a circular surface at equal spacings in cross section.

A “disk-shaped delimiting element” is understood to mean an element or object which essentially has an outer shape which is similar to a disk. The disk-shaped delimiting element preferably has a round or circular cross-section. Thus, the disk-shaped delimiting element is a flat, essentially round object. The disk-shaped delimiting element can be designed solidly, for example as a plate, but the disk-shaped delimiting element is preferably constructed from a tubular structure in order to save weight. However, the essentially disc-shaped form of the delimiting element can also be formed by a hexagon or a polygon, as a result of which an approximately circular outer diameter is formed in cross section. The radius of the respective disk-shaped delimiting element is selected in particular in such a way that a hose with the necessary number of windings and/or layers does not protrude beyond the radius of the disk-shaped delimiting element. The disk-shaped delimiting element preferably has a recess in its center. Around the center point, this recess is in particular at least partially circular or semi-circular. The recess extends from around the respective center point in particular to the outer diameter of the disk-shaped delimiting element.

A "recess" is, in particular, a free, recessed space. In the direction of the radius of the disk-shaped delimiting element, the recess has in particular a longer dimension than around the center point of the disk-shaped delimiting element on. Thus, the winding core can be inserted, in particular with its two opposite front ends and/or end sections, into the free recess of the two disk-shaped delimiting elements from the outer circumference to the center point of the respective disk-shaped delimiting element, and the respective disk-shaped delimiting element can thus be pushed onto the winding core.

The term “centre” is understood to mean in particular the point at which points on the outer circumference of the disk-shaped delimiting element are point-symmetrical in the cross-sectional plane. In the case of an exact configuration of the disk-shaped delimiting element as a circle, the distance between the circle points on the outer circumference of the disk-shaped delimiting element and the center point is the radius. In the case of the configuration of the disk-shaped delimiting element as a polygon, the center point is also understood to mean the center point of the outer circle or the center point of the inner circle.

"Longitudinal dimension" means the dimension of the recess in its longest direction.

“Detachable” is understood to mean in particular that the disk-shaped delimiting elements can be detached again from the roll without damaging the disk-shaped delimiting elements and the roll. A detachable connection is in particular a positive connection, such as a screw connection.

“Non-rotatable” is understood in particular to mean that the disk-shaped delimiting element placed on the winding core can no longer be turned and/or rotated on the winding core.

In a further embodiment of the winding aid, the respective recess is designed as a slot, club-shaped and/or cone-shaped in the respective disk-shaped delimiting element.

In principle, it should be emphasized that the longitudinal dimension of the recess from around the center point in the direction of the outer circumference only takes up part of the dimension of the radius of the disk-shaped delimiting element, or the longitudinal dimension can also be continuous from around the center point to the outer diameter, so that along the entire Radius there is a slot.

In the case of a lobe-shaped recess, the larger lobe-shaped section can lie further outwards within the delimiting element, so that the front end of the winding core is first inserted into this lobe-shaped section and then shifted to the center point in the narrower section of the lobe-shaped recess.

Likewise, in the case of a completely continuous recess from the outer circumference to the center point, this can be designed to taper, for example, so that due to the wider recess on the outer circumference it is easier to place it on the front end of the winding core and then the front end with the winding core can be moved in the direction of the center point.

In order to attach the two disc-shaped delimiting elements to the two opposite ends of the winding core in one operation without spatially changing the direction of the push-on movement, the respective recess is formed from around the center to the outer circumference of the respective disc-shaped delimiting element.

The respective disc-shaped delimiting element with the opening of the recess on the outer circumference of the respective disc-shaped delimiting element is first placed on the corresponding front end of the winding core and the disc-shaped delimiting element is pressed against the winding core until the corresponding front end moves in the opposite direction within the recess from the outer diameter to moved to the center.

An advantageous embodiment of the invention provides that the winding core has an axially protruding stub shaft with a smaller diameter on each of its opposite front ends, which is normally used for mounting the winding core on a traverse, a trolley or two transport wheels for rolling the winding core on a surface. and that the two disk-shaped delimiting elements can each be connected to one of the two stub shafts in a positive and/or non-positive manner. In this way, the opposite end faces of the expanded central part of the winding core form lateral stop and/or bearing surfaces for the respectively adjacent disk-shaped delimiting element.

In a further embodiment of the winding aid, the two disk-shaped delimiting elements each have a fastening means for the positive and/or non-positive connection with the respective front end of the winding core.

As a result, the two disk-shaped delimiting elements for winding can be firmly attached to the respective front ends of the winding core be taken so that they do not move spatially and thus ensure a predefined, lateral limit for the wound layers of the hose. The fastening means can then be detached again, so that the winding aid with the two disc-shaped delimiting elements can be used for a different winding core.

“Form-fitting connection” is understood to mean in particular that a form-fitting connection is formed by interlocking at least two connection partners. In the case of the form-fitting connection, in particular one connection partner is in the way of the other connection partner, so that the connection partners cannot become detached even without force transmission or with an interrupted force transmission. Thus, in the case of a form-fitting connection, there is in particular a blockage in at least one direction.

In the case of a "positive connection" (also called "frictional connection"), there is in particular a normal force on the surfaces of the connection partners to be connected. Here, a mutual displacement of the connection partners is prevented as long as the counterforce caused by the static friction is not exceeded. A frictional connection can be a clamp connection, for example.

In order to provide a defined receptacle for the respective front end of the winding core in the disk-shaped delimiting element, the respective recess ends in a central flange.

A "flange" is understood to mean a substantially ring-shaped disk. In particular, the flange does not have to be completely ring-shaped, but can be recessed in the area of the recess. A flange can also be a hub.

In a further embodiment of the winding aid, the central flange has two connecting mandrels which are arranged essentially at a 90° angle to a longitudinal orientation of the recess and which can be received in corresponding holes in a counter-flange of the winding core.

“Substantially at a 90° angle” is understood in particular to mean that the connecting mandrel does not have to be arranged exactly perpendicular to a longitudinal orientation of the recess.

In order to ensure a detachable, but secure and non-rotatable connection between the respective disk-shaped delimiting element and the winding core, a clamping unit, in particular a conical clamping screw, is fastened to the flange of the winding aid, radially outward from the two connecting mandrels, which is aligned radially inward to the connecting mandrels is.

Preferably, the limiting disk has a flange in the middle, which is identical to the end flange of the winding core except for the slip-on slot and which has two spikes at an angle of essentially 90° to the slip-on slot, which fit into holes in the flange on the winding core. Furthermore, there are two clamping screws on the handguard near the mandrels, which brace the flange of the handheld disc with the flange of the winding core and ensure that the handwheel's mandrels cannot slip out of the holes in the winding core. In this way, the handguard is positively connected to the winding core in two simple steps.

In a further embodiment of the winding aid, the respective disk-shaped delimiting element is designed in one piece, in two pieces or in several pieces.

In principle, it is possible to form the two disc-shaped limiting elements in one piece with the elongated recess and a central opening, so that these can be pushed onto one of the shaft ends in the axial direction and then fixed, for example, with the help of a grub screw. In this case, the limiting elements expediently have a central hub with a bore through which one of the stub shafts fits and ensures flexural rigidity of the plug-in connection.

Through a continuous, elongated recess from the outer circumference to around the center point of the respective disc-shaped delimiting element, the two delimiting elements can also be attached to a winding core, which is already installed in a traverse, at the end of which two transport wheels for rolling the winding core are already mounted or which is already in picked up by a hand pallet truck.

The two limiting disks preferably consist of only one piece, which, however, does not form a full circle, but rather has a slip-on slot from the hub to the outer circumference, which is wide enough for the stub shafts of the winding core to fit through. This allows the complete handguard with the slot to be pushed over the winding core. Due to this one-piece design, there is no gap between, for example, two half discs and the one-piece handguard is more stable, so that this is also suitable for turning the winding core with the manual drive.

The respective disk-shaped delimiting element is preferably designed as a tubular structure. Due to the fact that at least the radial outer boundary of the disk-shaped boundary element is made of a bent round tube, the winding material is carefully diverted into the winding area and sharp edges are avoided. In addition, the outer round tube can be used as a handle for the operator. The tubes of the tube structure can also be plugged into one another.

In this case, the transition from the outer boundary to the slip-on slot can also be made with round arches and/or the edging of the slip-on slot can be made of the same round tube, so that sharp edges are also avoided in this area. In addition, the tubular structure is lighter than a version made of solid material.

In an additional aspect of the invention, the object is achieved by a winding core for winding up at least one hose of a mobile flood protection or dyke system with a winding aid described above.

The winding core can be formed, for example, from a stable, hollow round tube made of steel or from several round tubes arranged to form a cage-like winding core with a cylindrical middle part and two shaft stubs projecting beyond the opposite end faces of the middle part.

In a further embodiment of the winding core, the winding core has two pivot bearings which can be arranged in a receptacle of a trolley, the two disc-shaped delimiting elements of the winding aid being arranged between a central part of the winding core and an axle receptacle of the trolley.

In an additional aspect of the invention, the object is achieved by a rolling device, such as, for example, cargo wheels, reel wheels or a hand pallet truck, having a winding aid as described above and/or a winding core as described above.

• 1 eine stark schematische Seitenansicht auf eine Außenseite einer Begrenzungsscheibe mit einem Schlitz, und
• 2 eine stark schematische Schnittdarstellung durch einen Wickelkern mit einer Aufwickelhilfe mit beidseitigen Begrenzungsscheiben.

The invention is explained in more detail below using exemplary embodiments. Show it

• 1 a highly schematic side view of an outside of a handguard with a slot, and
• 2 a highly schematic sectional view through a winding core with a winding aid with limiting discs on both sides.

A winding aid 12 has two limiting disks 30 . Each limiting disk 30 is formed on its outer circumference by a peripheral tube 32 which consists of a full circle interrupted by a slot 38 . The slot 38 is bounded by an upper relief spoke 42 and a lower relief spoke 44 which terminate in a hub portion 36 about the center point of the handguard 30 . A flange 28 which has two wedge screws 46 is arranged around the hub part 36 . Five spokes 40 with a 60° distribution are arranged between the flange 28 and the peripheral round tube 32 (see FIG 1 ). Furthermore, the flange 28 on the opposite inner side to the in 1 shown on the outside two connecting mandrels 48 (see 2 ).

Instead of a sixth spoke, the upper recessed spoke 42 and the lower recessed spoke 44 are arranged parallel to one another at a distance which is greater than the diameter of a stub shaft 18 of a winding core 10 to be accommodated designed with a pipe bend as a transition into the upper cut-out spoke 42 and the lower cut-out spoke 44, as a result of which the limiting disk 30 guided through the respective pipe bend can be pushed more easily onto the respective stub shaft 18 of the winding core 10.

The hub 10 is cage-like in configuration and includes a generally cylindrical center portion 16 having a larger diameter and two stub shafts 18 projecting beyond opposite ends of the center portion 16 and having a smaller diameter. The central part 16 is used to wind up a winding material, while the shaft ends 18 are used to mount the winding core 10 on a traverse, a trolley, a hand pallet truck or on two transport wheels for rolling the winding core 10 on a surface, which is used, for example, in DE 2003 20 986 U1 are shown and described.

The generally cylindrical center portion 16 of the mandrel 10 includes six round tubes 22, each having an outside diameter of about 30 mm, aligned parallel to one another and equiangularly spaced along a circle concentric with the central or axis of rotation 24 of the mandrel 10. The opposite ends of the six round tubes 22 are each welded to one of two flanges 28 extending in the radial direction protrude beyond the adjacent hollow stub shaft 18 (see 2 ).

The Indian 2 The winding core 10 shown with a winding aid 12 is used for winding up winding material in the form of a mobile flood protection or dyke system with one or more hoses connected to one another, for example by a network, such as those in the aforementioned DE 2003 20 986 U1 are shown and described. For further details of the system, reference is made to this document, the disclosure of which is incorporated by reference into part of the present patent application. The hoses not shown in the figures each have a diameter in a range from 0.5 to 5 m.

Before winding up a winding material, the winding aid 12 is releasably mounted on the winding core 10 with its respective limiting disks 30 at or in the vicinity of the opposite front ends directly adjacent to the central part 16 and is removed from the winding core 10 again after the winding material has been wound up. For this purpose, the slot 38 of each limiting disk 30 is pushed over the respective stub shaft 18 of the winding core 10, with the respective stub shaft 18 being displaced along the slot 38 into the hub part 36, so that a common axial position of the stub shaft 18 of the winding core 10 and the limiting disk 30 present. In this case, the respective flange 28 of the limiting disk 30 comes into contact with a respective mating flange 50 of the winding core 10 .

After reaching the end position of the respective stub shaft 18 in the respective hub part 36, the respective limiting disk 30 is rotated in such a way that the two connecting mandrels 48 on the inside of the flange 28 engage in corresponding holes in the mating flange 50 of the winding core 10. As soon as the two connecting mandrels 48 are fully inserted into the corresponding holes, the flange 28 of the limiting disk 30 and the counter-flange 50 of the winding core 10 lie flat against each other. By means of the wedge screws 46, which are attached to the outside of the flange 28 of the respective limiting disk 30 and are rotated in a radial direction behind the mating flange 50 of the winding core 10, the flange 28 and the mating flange 50 and thus also the respective limiting disk 30 and the Winding core 10 held together. By means of this fastening by means of the connecting mandrels 48 and the wedge screws 46, the limiting disks 30 are firmly connected to the winding core 10 in every direction.

The limiting disks 30 thus laterally delimit a space for the winding material on the winding core 10 and at the same time serve on the peripheral tube 32 for rotating the winding core 10 by hand.

Reference List

10

winding core

12

winding aid

16

cylindrical middle section

18

stub shaft

22

round tube

24

central axis (axis of rotation)

28

flange

30

Handguard

32

peripheral round tube

36

hub part

38

slot

40

spoke

42

upper cutout spoke

44

lower cutout spoke

46

wedge screw

48

connecting mandrel

50

counterflange

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited 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 assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 20320986 U1 [0004]
• DE 202012005889 U1 [0007]
• US 2143734A [0008]
• US20030071160A1 [0009]
• US 2658699 A [0010]
• US741463A [0011]
• DE 200320986 U1 [0062, 0064]

Claims (10)

Winding aid (12) for a winding core (10) for winding up at least one hose of a mobile flood protection or dyke system, the winding aid (12) having two disk-shaped delimiting elements (30) with an outer circumference and a center, characterized in that the the two disc-shaped delimiting elements (30) each have a recess (38) around the respective center and with a longitudinal dimension from around the center in the direction of the outer circumference, so that before winding up the two disc-shaped delimiting elements (30) of the winding aid (12) by means of the recesses (38) can be detachably and/or non-rotatably attached to two opposite ends (18) of the winding core (10) and can be removed from the winding core (10) again after winding. winding aid (12) after claim 1 , characterized in that the respective recess is designed as a slot (38), club-shaped and/or cone-shaped in the respective disk-shaped delimiting element (30). winding aid (12) after claim 1 or 2 , characterized in that the respective recess (38) is formed from around the center to the outer periphery of the respective disc-shaped limiting element (30). Winding aid (12) according to one of the preceding claims, characterized in that the two disc-shaped delimiting elements (30) each have a fastening means for positive and/or non-positive connection with the respective front end (18) of the winding core (10). Winding aid (12) according to one of the preceding claims, characterized in that the respective recess (38) ends in a central flange (28). winding aid (12) after claim 5 , characterized in that the central flange (28) has two connecting mandrels (48) which are arranged essentially at a 90° angle to a longitudinal orientation of the recess (38) and which fit into corresponding holes in a counter-flange (50) of the winding core ( 10) are recordable. winding aid (12) after claim 6 , characterized in that a clamping unit, in particular a conical clamping screw (46), is fastened to the flange (28) of the winding aid (12) radially outward from the two connecting mandrels (48) and radially inwards to the connecting mandrel (48). is aligned. Winding aid (12) according to one of the preceding claims, characterized in that the respective disc-shaped delimiting element (30) is designed in one piece, in two pieces or in several pieces. Winding core (10) for winding up at least one hose of a mobile flood protection or dyke system, characterized by a winding aid (12) according to one of Claims 1 until 8th . Winding core (10) after claim 9 , characterized in that the winding core (10) has two pivot bearings which can be arranged in a receptacle of a hand truck, the two disc-shaped delimiting elements (30) of the winding aid (12) each being located between a central part (16) of the winding core (10) and a Axle of the hand truck are arranged.

Images