EP2977542B1 - Flat protection device with spaced support components - Google Patents

Description

The invention relates to a flat protective device, comprising a winding shaft and a surface web, which is rollable on the winding shaft in the winding direction, wherein arranged on an outer edge of the surface web a plurality of spaced apart in the winding direction holding parts or formed, which are performed at least partially in a guide rail of the flat protective device , wherein the lengths of the holding parts and the spacing of the holding parts in the winding direction are chosen so that the holding parts of a wound on the winding shaft first surface area portion form a first series of substantially seamless abutting holding parts, and that the holding parts in the longitudinal direction of the winding shaft at least in sections on the Protruding outer edge of the surface sheet.

Such area protection devices are used for example as a sunscreen in the outdoor area to achieve a shading of a room, a conservatory or the like. Since high wind forces can occur outdoors, the surface web must be firmly connected to the holding parts, so that there is no tearing of the holding parts of the surface sheet. A similar problem exists with other planar protective devices act on the high forces, z. B. curtains can be exposed to high loads, such as when a child pulls on the surface sheet. According to the invention, a surface web is understood to be any flat woven or nonwoven web, for example a textile web or a film. Particularly preferably, the surface web is a textile web.

From the US 4,638,844 A is a sun protection device with a surface sheet has become known, which is guided in a guide rail. For this purpose, reinforcement strips are applied over the entire length of the surface sheet on the outer sides of the surface web in the winding direction, which are guided as a slider in a rail.

A similar sun protection device is from the US 2012/0325416 A1 known. The known sun protection device has a particularly narrow piping for guiding its surface web.

From the DE 10 2008 006 157 A1 is a wind deflector with a roller blind for a convertible known. On a surface track of these blinds a plurality of spaced apart Kederabschnitte are provided.

In addition, from " Roof window products "2009, Hunter Douglas Europe BV a roller blind with side guide known in which from each other spaced guide rivets (pips) are punched in the edge region of a surface sheet, which can be performed in a guide rail.

Furthermore, the disclosure US 2007/0256799 A1 a flat protective device with holding parts whose distance from each other corresponds to the length of the holding parts. To reduce a bead, it is provided in the known protective device to taper the diameter of a winding shaft in the region of the holding parts.

In connection with the generic planar protective devices must be noted that not only the connections between the holding parts and the surface sheet must be made stable, but also the holding parts themselves to prevent damage to the holding parts in strong winds. However, a massive design of the holding parts has the disadvantage that the holding parts form a thick bead in rolled surface web in the field of winding shaft. Such a bead looks unaesthetic, prevents uniform rolling of the surface sheet on the winding shaft and bulges out the surface sheet, so that in the course of time waves form in the surface sheet.

It is therefore an object of the present invention to provide a flat protective device, the unrolled surface web is held securely even in strong force effects in a guide rail, but at the same time largely bead-free on a winding shaft of the sheet protection device is rolled up.

This object is achieved by a flat protective device with the features of claim 1. The dependent claims indicate preferred developments.

The object is thus inventively achieved in that the spacing of the holding parts and the thickness of the holding parts are selected perpendicular to the plane of the surface sheet so that when forming a plurality of superimposed rows of holding parts, the holding parts are each arranged radially one above the other.

The holding parts are thus formed and arranged in the first surface sheet section so that they form a first row on the winding shaft one behind the other. Only when these holding parts form a first row on the winding shaft, a second series of holding parts is arranged on the first row. Until the first row of holding parts is formed on the winding shaft when rolling up the surface web, the winding shaft has already been rotated more than once. On the winding shaft is thereby at least partially more than one layer of the surface sheet until the first row is filled with holding parts. Since the holding parts only after more than one revolution of the winding shaft forms a first series of holding parts and thus a bead formation is avoided, the holding parts can be made correspondingly solid and stable to withstand large, acting on the surface sheet forces.

According to the invention, the sections of the holding parts (guide elements) guided in the guide rail project beyond the winding shaft in the longitudinal direction of the winding shaft, ie in the direction of the axis of rotation of the winding shaft. As a result, a bead formation can be prevented particularly effectively. The holding parts are thus arranged at least in sections away from the outer edge of the surface sheet. The distance between two opposite (perpendicular to the winding direction) guide elements is thus at least as large as the width of the surface sheet. Due to the arrangement of the guide elements away from the outer edge of the surface sheet in combination with the above-described staggered arrangement of the holding parts in the winding direction, the winding thickness of the protective device can be kept low in the wound state despite the use of guide elements which have a greater thickness compared to the surface sheet, so less space is required for the device according to the invention, as is the case with known planar protective devices.

The holding parts are in the rolled-up state of the surface web, beginning with the first row in the region of the lateral surface of the winding shaft, at least 80%, in particular at least 90%, congruent stacked. In other words, the holding parts are arranged in the rolled up state of the surface sheet radially superimposed to the axis of rotation of the winding shaft. The holding parts are arranged radially radially. Due to the radially radial or star-shaped arrangement of the holding parts, the holding parts are up to the radially outermost holding parts with their longitudinal sides at least 80%, in particular at least 90%, touching each other. As a result, buckling and wave formation in the surface sheet can be effectively avoided.

To produce the flat protective device, the surface sheet can be rolled onto the winding shaft, wherein the holding parts are attached to the surface web, that they each lie at least 80%, in particular at least 90%, in the wound state of the protective device one above the other.

The attachment of the holding parts can be done by hand during the winding of the surface sheet. The holding parts can already be fastened during winding. Alternatively, for the manufacture of the protective device during the first winding of the surface web, a marking can be applied to those points on the surface web to which later, when the surface web is unwound again, the holding parts are fastened.

The holding parts are preferably arranged on the end faces of the wound surface web such that the radial rays visible through the holding parts have an angle of 40 °, 36 ° or 32 °, 73 ° to one another. The aforementioned angles correspond to a circumferential arrangement of 9, 10 or 11 holding parts on the wound surface sheet.

In order to simplify the description of the present invention, the description will be made as much as possible with respect to a single outer edge of the surface web. Preferably, however, the surface web is guided on both outer sides in each case a guide rail by holding parts. The planar protective device is preferably formed mirror-symmetrically to a center plane which is perpendicular to the longitudinal axis of the winding shaft.

The planar protective device according to the invention is preferably used for outdoor use, since here partly high and variable forces, eg. B. wind forces acting on the protective device. However, the protective device according to the invention can also be used in the interior of buildings, z. B. in horizontal systems, such as covers of swimming pools.

The holding parts preferably have the same length in the winding direction. Due to their uniform length, the holding parts can be produced inexpensively.

In a particularly preferred embodiment of the invention, the flat protective device is designed such that from the winding of the first holding member at each revolution of the winding shaft, a number t is wound on holding parts, wherein the additional holding parts at least until the formation of the first row substantially completely in the winding direction or be applied against the winding direction to the already wound holding parts. As a result, an optimally tight arrangement of the holding parts is achieved without losing space in the circumferential direction of the winding shaft.

mit

• A...dem Abstand der Halteteile, gemessen von Vorderseite zu Vorderseite hintereinander in Wickelrichtung auf der Flächenbahn angeordneter oder ausgebildeter Halteteile;
• I...der Länge eines Halteteils in Wickelrichtung;
• U...dem Umfang der Wickelwelle bzw. des jeweils mit der letzten Umdrehung auf die Wickelwelle aufgewickelten Flächenbahnabschnitts, mit U = n·l für die erste Umdrehung (Die Größe U ändert sich also mit jeder Umwicklung und damit auch der Abstand der Halteteile zueinander.), wobei n eine positive ganze Zahl ist, die die maximale Anzahl der Halteteile pro Reihe angibt;
• m... einer nichtnegativen ganzen Anzahl von Wicklungen, d. h. einer ganzen Anzahl von Wicklungen einschließlich 0; und
• t...einem ganzzahligen Teiler, der angibt, wie viele Halteteile pro Umdrehung der Wickelwelle aufgewickelt werden. Beispielsweise werden im Fall t = 2, pro Umdrehung der Wickelwelle 2 Halteteile im Bereich des Umfangs der Wickelwelle aufgereiht werden.

The distance A of the holding parts is preferably at the same length holding parts $$\mathrm{A}=\mathrm{1}/\mathrm{t}\cdot \left(\mathrm{U}\pm \mathrm{I}\right)+\mathrm{m}\cdot \mathrm{U}$$

With

• A ... the distance of the holding parts, measured from front to front one after the other in the winding direction on the surface path arranged or trained holding parts;
• I ... the length of a holding part in the winding direction;
• U ... the circumference of the winding shaft or of each wound with the last revolution on the winding surface surface section, with U = n · l for the first revolution (the size U thus changes with each wrapping and thus the distance between the holding parts to each other.), where n is a positive integer indicating the maximum number of retainers per row;
• m ... a non-negative integer number of windings, ie a whole number of windings including 0; and
• t ... an integer divider that indicates how many holding parts are wound per revolution of the winding shaft. For example, in the case of t = 2, 2 holding parts in the region of the circumference of the winding shaft are lined up per revolution of the winding shaft.

In the simplest case (t = 1 and m = 0) is: $$\mathrm{A}=\mathrm{U}\pm \mathrm{I}$$

In this case, a holding member is added during rolling of the surface sheet on the winding shaft at each revolution, the newly added holding parts seen in the winding direction before the last added holding part (in the case A = U + l) or behind the last added holding part (in case A = Ul) is ranked.

If m ≠ 0, the winding shaft rotates m-turns without a holding part to line up until the next holding part is lined up.

The number n of the holding parts of a row depends on the diameter of the winding shaft and on the length l of the holding parts in the winding direction. The more lugs to wind per winding, the smaller the spacing between the retainers must be, and the fewer turns needed to form a complete row of retainers. The number and length of the holding parts are to be adjusted according to the requirements.

The distances of the holding parts within a revolution can be the same length to facilitate the manufacture of the protective device.

mit

• An...dem Abstand zwischen einem Halteteil n-1 und einem Halteteil n,
• A_n+1...dem Abstand zwischen dem Halteteil n und dem gegen die Wickelrichtung folgenden Halteteil n+1 und
• s...dem Skalierungsfaktor. Der Skalierungsfaktor s beträgt vorzugsweise zwischen 1,01 und 1,20.

In a particularly preferred embodiment of the invention, the distance of the holding parts against the winding direction increases steadily. The distance of equal length holding parts is in this case: $${\mathrm{A}}_{\mathrm{n}+\mathrm{1}}={\mathrm{A}}_{\mathrm{n}}*\mathrm{s}$$

With

• At ... the distance between a holding part n-1 and a holding part n,
• A _{n + 1} ... the distance between the holding part n and the holding part n + 1 and following the winding direction
• s ... the scaling factor. The scaling factor s is preferably between 1.01 and 1.20.

In other words, the distance of the holding parts against the winding direction preferably increases steadily between 1% and 20%. As a result, the effectively increased by the wound surface sheet diameter of the winding shaft can be compensated. The scaling factor s is dependent on the diameter of the winding shaft and on the thickness of the surface web.

A particularly easily running planar protective device can be achieved in that at least one holding part, in particular all holding parts, a trained as a slider body guide element having at least one bent towards the inside of the guide rail formed sliding surface.

At least one holding part, in particular all holding parts, may have a sliding surface that is resiliently formed towards the inside of the guide rail. The surface sheet can thereby be guided flexibly in the guide rail.

A particularly quiet and low-friction guidance of the surface track in the guide rail can be achieved by having at least one holding part, in particular all holding parts, a sliding roller pointing towards the inside of the guide rail as a guide element.

In a particularly preferred embodiment of the invention, at least one guide element, in particular all guide elements, spaced from the edge of the surface sheet. In other words, the guide element or stand the guide elements beyond the edge of the surface sheet addition. As a result, a particularly large amount of space is saved transversely to the winding direction, since the guide element or the guide elements do not rest on the surface sheet at any point and form a bead.

To form a fixed connection to the surface web, at least one holding part can have a first lug attached to the upper side of the surface web. The first flag comprises a sheet material, for example a piece of film or a woven or nonwoven textile piece. Preferably, all holding parts have a first lug attached to the upper side of the surface lane. By the flag on the holding part, or on the holding parts, a flat and thus particularly strong connection to the surface sheet can be made.

An even more stable connection to the surface web can be achieved by virtue of the fact that at least one holding part, in particular all holding parts, has an underside of the surface web opposite the top side having attached second flag. The second flag comprises a sheet material, for example a piece of film or a woven or nonwoven textile piece.

The first flag and / or the second flag may be connected to the surface web by a suitable bond, such as an adhesive bond, or, preferably, by a thermoplastic adhesive layer. Particularly preferably, both flags are connected by a respective thermoplastic adhesive layer with the surface sheet. The thermoplastic adhesive layer is melted or fused to connect the respective holding part with the surface sheet. The thermoplastic adhesive layer has the particular advantage that any surface webs can be connected to the holding part.

A particularly strong connection of a holding part to the surface web can be achieved if the first flag and the second flag are formed from a one-piece, folded in the region of a guide element flag textile. The first lug and the second lug of all holding parts preferably each consist of a one-piece flag textile folded in the region of its respective guide element.

The flag textile may, for further strengthening of the connection between the holding part and surface web in the region of the assignment, have a holding cord running in the winding direction. Preferably, each holding part in its allocation to a running in the winding direction holding cord.

At least one holding part, in particular all holding parts, may be designed mirror-symmetrically to the plane of the surface web. In other words, the holding part, or the holding parts, are the same above and below a plane defined by the surface web educated. As a result, production costs can be saved. Furthermore, the holding part or the holding parts can be attached without regard to its or their orientation on the surface sheet.

A particularly easy assembly and thereby achieved low production costs can be achieved if the holding parts are identical.

The planar protective device according to the invention can be designed, for example, as sunscreen, as glare protection, privacy screen, windscreen, light protection, insect protection or fire protection. The material of the surface sheet is then to be selected according to the intended use.

Further features and advantages of the invention will become apparent from the following detailed description of several embodiments of the invention, with reference to the figures of the drawing showing essential to the invention details, and from the claims.

The features shown in the drawing are shown such that the features of the invention can be made clearly visible. The various features may be implemented individually for themselves or for a plurality of combinations in variants of the invention.

Fig. 1a

eine perspektivische Ansicht eines Halteteils;

Fig. 1b

eine Draufsicht auf das Halteteil gemäß Fig. 1a;

Fig. 2a

eine perspektivische Ansicht eines weiteren Halteteils;

Fig. 2b

eine Draufsicht auf das Halteteil gemäß Fig. 2a;

Fig. 3a

eine perspektivische Ansicht eines weiteren Halteteils;

Fig. 3b

eine Draufsicht auf das Halteteil gemäß Fig. 3a;

Fig. 3c

eine vergrößerte perspektivische Ansicht des Halteteils aus Fig. 3a;

Fig. 4a-4c

jeweils eine Draufsicht auf ein Führungselement;

Fig. 5

eine perspektivische Ansicht einer Flächenbahn mit mehreren Halteteilen;

Fig. 6a-6g

eine perspektivische Ansicht einer Flächenbahn beim Aufrollen auf eine Wickelwelle;

Fig. 7

eine Draufsicht auf mehrere Halteteile während deren Herstellung;

Fig. 8a

eine perspektivische Darstellung eines Halteteils mit einer Fahne;

Fig. 8b

einen Längsschnitt durch das Halteteil gemäß Fig. 8a;

Fig. 9a

eine perspektivische Darstellung eines Halteteils mit zwei Fahnen;

Fig. 9b

einen Längsschnitt durch das Halteteil gemäß Fig. 9a;

Fig. 10a

eine perspektivische Darstellung eines Halteteils mit zwei Fahnen aus einem einteiligen Fahnenmaterial;

Fig. 10b

einen Längsschnitt durch das Halteteil gemäß Fig. 10a;

Fig. 11a

eine perspektivische Darstellung eines Halteteils mit zwei Fahnen und einem Einleger; und

Fig. 11b

einen Längsschnitt durch das Halteteil gemäß Fig. 11a.

Show it:

Fig. 1a

a perspective view of a holding part;

Fig. 1b

a plan view of the holding part according to Fig. 1a ;

Fig. 2a

a perspective view of another holding part;

Fig. 2b

a plan view of the holding part according to Fig. 2a ;

Fig. 3a

a perspective view of another holding part;

Fig. 3b

a plan view of the holding part according to Fig. 3a ;

Fig. 3c

an enlarged perspective view of the holding part Fig. 3a ;

Fig. 4a-4c

in each case a plan view of a guide element;

Fig. 5

a perspective view of a surface sheet with a plurality of holding parts;

Fig. 6a-6g

a perspective view of a surface sheet during rolling on a winding shaft;

Fig. 7

a plan view of several holding parts during their production;

Fig. 8a

a perspective view of a holding part with a flag;

Fig. 8b

a longitudinal section through the holding part according to Fig. 8a ;

Fig. 9a

a perspective view of a holding part with two flags;

Fig. 9b

a longitudinal section through the holding part according to Fig. 9a ;

Fig. 10a

a perspective view of a holding part with two flags of a one-piece flag material;

Fig. 10b

a longitudinal section through the holding part according to Fig. 10a ;

Fig. 11a

a perspective view of a holding part with two flags and a depositor; and

Fig. 11b

a longitudinal section through the holding part according to Fig. 11a ,

Fig. 1a shows a holding part 10. The holding part 10 has a guide element 12, between which a first lug 14 and a second lug 16 are arranged. The first flag 14 and the second flag 16 consist of a one-piece or one-piece flag textile 18th

Fig. 1b shows the holding part 10 in a plan view. Out Fig. 1b It can be seen that the guide element 12 has a first curved sliding surface 20 and a second curved sliding surface 22. The sliding surfaces 20, 22 serve for the low-friction guidance of the guide element 12 on an inner side of a guide rail (not shown).

Fig. 2a shows a holding part 24. The holding part 24 is identical to the holding part 10 is formed. However, the holding part 24 has a guide element 26 with two rollers 28, 30. The rollers 28, 30 are mounted on a common axis 32. Through the rollers 28, 30, the holding part 24 can be performed with particular low friction and noise on a guide rail.

Fig. 2b shows the holding part 24 in a plan view. Out Fig. 2b It will be seen that the caster 28 has a chamfer 34 on the outside to facilitate insertion of the support member 24 into a guide rail.

Fig. 3a shows a holding part 36. The holding part 36 is identical to the holding part 10 is formed. However, the holding part 36 has a slider element designed as a guide element 38 with resiliently designed sliding surfaces 40, 42. The sliding surfaces 40, 42 serve for flexible guidance of the holding part 36 on the inside of a guide rail.

Fig. 3b shows the holding part 36 in a plan view. Out Fig. 3b It can be seen that the resiliently shaped sliding surfaces 40, 42 are formed on arms which are formed from outside of the slider body 38 bent inwardly.

The holding parts 10, 24, 36 described above are symmetrical to one between the first lug 14 and the second lug 16 (see FIG Fig. 1a ) extending level formed. In other words, the holding parts 10, 24, 36 are formed symmetrically to a surface track on which the holding parts 10, 24, 36 can be fastened.

Fig. 4a shows a trained as a slider body guide member 44. The slider body 44 includes - as well as the slider body 38 - from the outside of the slider body 44 inwardly bent arms 46, 48. The arms 46, 48 have curved sliding surfaces 50, 52.

Fig. 4b shows a trained as a slider body guide member 54. The slider body 54 has arms 56, 58, which also have curved sliding surfaces. The arms 56, 58 are formed bent from an inner side of the slider body 54 outwardly.

Fig. 4c The slider body 60 substantially corresponds to the slider body 54. However, arms 62, 64 are flatter than the arms 56, 58 of the holding part 54. By the formation of the arms - here the arms 62, 64 of the slider body 60 and the arms 56, 58 of the slider body 54 - the elastic properties of the slider body 54, 60 are selected.

The slider bodies 44, 54, 60 described above can be provided with at least one lug, in particular two lugs, analogously to the holding parts 10, 24, 36.

Fig. 3c shows an enlarged view of the due to its compact and thus particularly stable training preferred holding part 36. Off Fig. 3c it can be seen that the slider body 38 has a recess 66. In the recess 66 a flag textile 68 is folded. In the area of the assignment of the flag textile 68, a retaining cord 70 is arranged. By the retaining cord 70, the flag textile 68 is particularly effectively protected from tearing out of the slider body 38.

The inside of the flag textile 68 is coated with a thermoplastic adhesive layer 72. By the thermoplastic adhesive layer 72, the holding part 36 can be particularly firmly connected to a surface sheet of any material.

Fig. 5 shows a surface sheet 74 having a plurality of fastened to the surface sheet 74 holding parts, of which for reasons of clarity, only a first holding part 76 and a second holding part 78 are provided with a reference numeral. In the Fig. 5 shown holding parts are identical to the holding part 36 (see Fig. 3c ) educated. The first holding part 76 has the length l and is arranged at a distance A to the second holding part 78 at a first outer edge 80 of the surface sheet 74. The surface sheet 74 with the holding parts attached thereto can be rolled up in the winding direction on a winding shaft. The winding direction is in Fig. 5 indicated by an arrow 82. Likewise, a second outer edge 84 extends in the winding direction of the surface web 74. The holding parts on the second outer edge 84 are arranged symmetrically to the holding parts, for example to the holding parts 76, 78, on the first outer edge 80 , For reasons of clarification of the constant increase in distance, the distance of the holding parts against the winding direction is exaggerated greatly increased.

Fig. 6a-6f shows the winding of a first series of holding parts on a winding shaft of a flat protective device 85. A guide rail of the flat protective device 85 for guiding the holding parts is not shown for reasons of clarity.

Fig. 6a shows the winding shaft 86, on which a surface web 88 is rolled up. The winding direction is indicated by an arrow 90. The holding parts are identical to the holding part 36 according to Fig. 3c educated. The length l of the holding parts in the winding direction is the same. The holding parts are arranged in the winding direction on an outer edge 92 of the surface web 88. The first wound on the winding shaft 86 holding part is the numeral 1 designated and arranged at a distance A from another designated by the numeral 2 holding part.

Fig. 6b shows the flat protective device 85 after a rotation of the winding shaft 86. In the course of this revolution, two more, designated by the numeral 2 holding parts have lined up on the winding shaft 86.

Fig. 6c-6f show the two-dimensional protection device 85 in each case after a further rotation of the winding shaft 86. With each revolution, two holding parts more in the range of the winding shaft 86 are lined up until the holding parts (see Fig. 6f ) form a first row 94 of substantially continuous juxtaposed holding parts. The added at the respective rotation holding parts are in Fig. 6a-6f denoted by the number of this revolution. For example, the added in the 5th turn holding parts are designated by the numeral 5.

Distance A and length l of the holding parts are thus chosen so that with each revolution of the winding shaft two holding parts are lined up new on the winding shaft. With each winding, the distance A changed so that the holding parts come to rest despite a winding radius of a previously wound holding part.

In the in Fig. 6a-6f In the example shown, two holding parts per winding are wound up in each winding (m = 0, t = 2). A series of holding parts is formed by eleven holding parts (n = 11).

As an alternative to the present embodiment, only one holding part (t = 1), 3 holding parts (t = 3), 4 holding parts (t = 4), etc. could be added with each revolution. In case m ≠ 0 the Turn the winding shaft 86 between two holding parts m-fold, without stringing another holding part onto the winding shaft 86.

As a result of the holding parts, which are lined up substantially without gaps in the first row 94, bulging in the end region of the winding shaft 86 can be avoided.

The holding parts protrude with their guide elements in the longitudinal direction of the winding shaft 86 beyond the winding shaft 86. As a result, space can be obtained transversely to the axis of rotation of the winding shaft 86 in order to be able to arrange the holding parts more effectively without bulging.

Fig. 6g shows the flat protective device 85 with several layers (rows) wound up holding parts. The holding parts are arranged radially congruent superimposed with respect to the axis of rotation of the winding shaft 86. The distance of the holding parts thus increases against the winding direction after closing the first row 94 steadily to the in Fig. 6g to achieve shown "stacking" of the holding parts. The holding parts can be arranged in this way particularly space-saving, so that there is a comparison with the prior art known surface protection devices significantly reduced winding thickness.

Fig. 7 shows several holding parts 96, 98, 100, 102 in their manufacture. The holding parts 96, 98, 100, 102 each have a guide element 104, 106, 108, 110. The guide elements 104, 106, 108, 110 are integrally formed. The guide elements 104, 106, 108, 110 are made of plastic and are molded onto a flag textile 112. The banner textile 112 comprises in Fig. 6 visible first tabs 114, 116, 118, 120 and may also have identical underlying second tabs shown in FIG Fig. 6 are not visible. The banner textile 112 is at his in Fig. 6 inside lying sides completely with a thermoplastic layer (see the thermoplastic adhesive layer 72 in Fig. 3c ).

After the guide elements 104, 106, 108, 110 have been injection-molded onto the flag textile 112, the holding parts 96, 98, 100, 102 are separated by a separation method, in particular by cutting, along the dashed lines. The separation is in Fig. 6 indicated by cutter knife. The corners of the flag textile 112 are truncated by a cutting process. The holding parts 96, 98, 100, 102 thus obtained are identical to the holding parts 36 according to FIG Fig. 3c educated.

The Fig. 8a to 11b show in summary preferred variants of the holding part according to the invention in a perspective or sectional view.

Fig. 8a shows a structurally particularly simple and thus inexpensive to produce holding part 122. The holding part 122 has a single first flag 124. The first flag 124 is in the form of a flag textile. The first lug 124 is preferably provided with a thermoplastic plastic layer at least on one surface side, in particular on both surface sides. Alternatively, the first flag 124 may be formed entirely of a thermoplastic.

Fig. 8b shows the holding part 122, wherein from Fig. 8b it can be seen that to the first flag 124, a guide member 126 is molded from plastic.

Fig. 9a shows an adhesive part 128, the holding part 122 according to Fig. 8a equivalent. However, the holding part 128 has a first lug 130 and a second lug 132. The two lugs 130, 132 are not connected to one another at the end.

Fig. 9b shows the holding part 128 according to Fig. 9a , being out Fig. 9b it can be seen that the two lugs 130, 132 are molded onto each other in abutment with a guide element 134. The two lugs 130, 132 are preferably formed from a textile flag material and have on the mutually facing surface surfaces on a thermoplastic layer of plastic.

Fig. 10a shows a holding part 136, the holding part 128 according to Fig. 9a equivalent. However, the holding part 136 has a first lug 138 and a second lug 140, which are formed from a one-piece lug material.

Fig. 10b shows the holding part 136, wherein Fig. 10b It can be seen that the flag material of the lugs 138, 140 is folded over at the end in a guide element 142.

Fig. 11a shows a holding part 144, the holding part 136 according to Fig. 10a corresponds, wherein a first flag 146 and a second flag 148 are integrally formed from a single end-folded flag material.

Fig. 11b shows the holding part 144. Off Fig. 11b It can be seen that in the region of the transfer of the flag textile, an insert 150 is provided between the first lug 146 and the second lug 148. The insert 150 is in the form of a retaining cord.

In summary, the invention relates to a flat protective device. The two-dimensional protective device has a surface web which can be wound onto a winding shaft in the winding direction. At at least one, in particular at both, extending in the winding direction outer edges of the surface web holding parts are arranged, which are spaced in the winding direction so that the accumulating when rolling the surface sheet in the winding shaft holding parts forms a first series of substantially seamless adjacent holding parts, said project the holding parts in the longitudinal direction of the winding shaft at least in sections over the outer edge of the surface sheet.

Claims (8)

1. A flat protective device (85), comprising a winding shaft (86) and a flat web (74, 88), which can be wound up on the winding shaft (86) in the winding direction, several securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) spaced apart in the winding direction being arranged or formed on an outer edge (80, 84, 92) of the flat surface (74, 88), said securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) being guided in a guide rail of the protective device (85) at least in sections, the lengths (1) of the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) and the spacing (A) of the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) in the winding direction being chosen such that the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) of a first flat web section wound up on the winding shaft (86) form a first row (94) of securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) abutting against each other essentially without gaps, and that the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144), at least in sections, protrude over the outer edge of the flat web in the longitudinal direction of the winding shaft,
   characterized in that
   the spacing (A) of the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) and the thickness of the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) perpendicular to the plane of the flat web (74, 88) are chosen such that the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) are each arranged on top of each other in a radial manner when several rows (94) of securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) arranged on top of each other are formed.
2. The flat protective device according to claim 1,
   characterized in that
   the securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) have the same length (1) in the winding direction.
3. The flat protective device according to any one of the preceding claims,
   characterized in that
   the protective device (85) is formed such that a number t of securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) is wound up at each rotation of the winding shaft (86), starting with the first securing part (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) having been wound up, the following securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) being arranged next to the already wound-up securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144) in the winding direction or opposite to the winding direction essentially without gaps, at least until a first row (94) has been formed.
4. The flat protective device according to any one of the preceding claims,
   characterized in that
   at least one securing part (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144), in particular all securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144), comprises a first flag (14, 114, 116, 118, 120, 124, 130, 138, 146) secured to the upper side of the flat web (74, 88).
5. The flat protective device according to claim 4,
   characterized in that
   at least one securing part (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144), in particular all securing parts (10, 24, 36, 76, 78, 96, 98, 100, 102, 122, 128, 136, 144), comprises a second flag (16, 132, 140, 148) secured to the lower side of the flat web (74, 88) opposite to the upper side.
6. The flat protective device according to claim 4 or 5,
   characterized in that
   the first flag (14, 114, 116, 118, 120, 124, 130, 138, 146) and/or the second flag (16, 132, 140, 148) are connected to the flat web (74, 88) via a thermoplastic adhesive layer (72).
7. The flat protective device according to claim 5 or claim 6 in conjunction with claim 6,
   characterized in that
   the first flag (14, 114, 116, 118, 120, 124, 130, 138, 146) and the second flag (16, 132, 140, 148) are made of a one-piece flag textile (18, 112) folded in the area of a guiding element (12, 26, 38, 104, 106, 108, 110, 126, 134, 142).
8. The flat protective device according to claim 7,
   characterized in that the flag textile (18, 122) comprises a securing cord (70) running in the winding direction in the area of where it is folded.

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