Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
  • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
  • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
  • E04F10/0644—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind
  • E04F10/0655—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind acting on the movable end, e.g. front bar
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
  • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
  • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
  • E04F10/0666—Accessories
  • E04F10/0681—Support posts for the movable end of the blind
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
  • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
  • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
  • E04F10/0692—Front bars
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
  • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
  • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
  • E04F10/0644—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind
  • E04F10/0648—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind acting on the roller tube
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
  • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
  • E06B9/60—Spring drums operated only by closure members

Definitions

• the invention relates to a system for rolling up and unrolling a material web, in particular a sun sail.
• State-of-the-art systems for rolling up and unrolling a material web typically require structures to support the material web. These support structures are often very prominent and detract from the visual appearance of the actual material web. Furthermore, the support structures for the material web are often heavy and bulky.
• the support structure is typically attached to a building facade and includes a roller tube and a frame that supports the shade-providing material when unrolled. Therefore, the frame is particularly visible when unrolled.
• awnings can be used. These are often permanently installed and require complicated removal (for example, in the event of severe weather).
• An alternative are roll-out or fold-out awnings. These are guided by rails or cable systems. These rails and cable systems take up a lot of space, especially when the material is rolled up, and can thus impair the appearance of the system.
• the object of the present invention is to provide a system for winding and unwinding a material web which at least partially overcomes the aforementioned disadvantages.
• the task is solved by a system for rolling up and unrolling a material web.
• the material web could, for example, be a sunshade.
• the system according to the invention comprises at least one shaft and a material web.
• the material web is attached to the shaft at a first end.
• the attachment can be direct or indirect.
• the shaft is rotatable. By rotating the shaft, the material web can be unrolled or wound up, i.e., transferred from a wound state to an unwound state (unwinding). Likewise, by rotating the shaft, the material web can be transferred from an unwound state to a wound state (winding up).
• the system further comprises at least one extension element.
• the extension element is attached to a second end of the material web, which second end is opposite the first end.
• the extension element can, for example, extend over the entire length of the second end. It is also possible for the extension element to be longer or shorter than the second end of the material web.
• the extension element is rod-shaped.
• the extension element can be an extruded profile and made of plastic and/or metal (especially aluminum).
• the pull-out element can also be attached to the material web directly or indirectly (e.g., via a piping rail, rivets, eyelets, and/or the like).
• the pull-out element is at least partially folded into the material web.
• the material web can have at least one pocket at its second end, in which the pull-out element is at least partially accommodated.
• the system can comprise a housing in which the shaft and the rolled-up material web are at least partially accommodated.
• the pull-out element can be configured to at least partially close the housing when the material web is in the rolled-up state.
• the material web is protected from environmental influences.
• the extension element has at least one retaining cable connecting element and at least one tension cable connecting element.
• the retaining cable connecting element and/or the tension cable connecting element can be designed, for example, as an opening, eyelet, bolt, pulley, and/or the like.
• the retaining cable connecting element serves to connect a retaining cable to the extension element.
• the tension cable connecting element serves to connect a tension cable to the extension element.
• the retaining cable connecting element is spaced apart from the tension cable connecting element by a distance x. This distance x is fixed and does not change during unwinding or rewinding.
• the tether cable can be connected directly or indirectly to the tether cable connecting element, and the traction cable can be connected directly or indirectly to the traction cable connecting element. In a direct connection, no additional element is arranged between the cable and the connecting element.
• At least one additional element such as a tensioning element or an elastic element, is arranged between the rope and the connecting element.
• the connection can also be rigid, so that no gap is formed between the rope and the corresponding connecting element. Relative movement occurs. In another aspect, relative movement is permitted and/or the rope is deflected at the connecting element.
• the connecting element can be designed as an eyelet. If the rope is to be deflected but relative movement is to be avoided or at least reduced, the connecting element can include a pulley that guides the rope.
• connection between the tether and the tether connecting element or the connection between the pull rope and the pull rope connecting element enables a transmission of force from the rope (tether or pull rope) to the corresponding connecting element (tether connecting element or pull rope connecting element) and thus to the extension element.
• the system further comprises a pull cable and at least one retaining cable.
• a pull cable By applying a tensile force to at least one end of the pull cable, the material web can be unwound.
• the pull cable transfers part of the tensile force to the pull cable connecting element.
• the retaining cable serves to transfer part of the tensile force to the retaining cable connecting element.
• the tensile force is thus transferred by the retaining cable to different points on the extension element. This allows the extension element to be extended as evenly as possible, particularly parallel to the shaft. This prevents the formation of wrinkles in the material web during unwinding (and correspondingly during rewinding).
• the retaining cable is connected (directly or indirectly) to the retaining cable connecting element.
• the retaining cable comprises a pull-cable deflection element (e.g., an eyelet, a roller, and/or the like) at an end facing away from the retaining cable connecting element.
• This end of the retaining cable is preferably a free end.
• the retaining cable is configured such that a distance d between the retaining cable connecting element and the pull-cable deflection element increases when the material web is transferred from the rolled-up state to the unrolled state (i.e., is pulled on the pull-cable).
• the holding rope (and/or an elastic element) is designed such that the maximum distance d between the holding rope connecting element and the traction rope deflection element is limited.
• the maximum distance d is selected such that the holding cable and the pulling cable form a substantially isosceles triangle with the extension element (the extension element forms the base) when the material web is transferred from the rolled-up state to an unrolled state.
• the holding cable and the part of the pulling cable that is guided between the pull-cable deflection element and the pull-cable connecting element can enclose an angle ⁇ in the range of 50° to 130°, or in the range of 60° to 120°.
• the pulling cable is deflected at the pull-cable deflection element and is connected to the pulling cable connecting element.
• a tensile force acting on the pulling cable is partially transmitted via the tensile cable to the pulling cable connecting element and thus to the extension element. Another part of the tensile force is absorbed by the holding cable via the pull-cable deflection element and transmitted to the holding cable connecting element and thus to the extension element.
• the tensile force causes the material web to change from a rolled-up state to an unrolled state.
• the retaining cable connecting element and the pull cable deflection element increases (until the maximum distance is reached) when the material web is transferred from the rolled-up state to the unrolled state, i.e. when the pull cable is pulled, and decreases accordingly when the pulling is no longer applied or the pulling force is reduced, the retaining cable can rest against the extension element, especially when the material web is in the rolled-up state. Therefore, when the material web is in the rolled-up state, the retaining cable is not or only slightly distinguishable from the extension element and is therefore visually unobtrusive.
• the distance increases and the pull cable and the retaining cable can form a tension triangle (especially An isosceles triangle is formed, which extends from the extension element, more precisely from the retaining cable connecting element and the tension cable connecting element, to the tension cable deflection element.
• the tensile force can be transferred via the tension cable and the retaining cable to two different areas or points of the extension element. This allows for uniform extension.
• the tension triangle formed distributes the tensile force acting on the extension element through the material web across several distributed points and from there transfers it to the tension or holding cable.
• This allows the extension element to be designed to be slim and therefore visually appealing, without the risk of bending or even kinking due to the acting tensile forces.
• the extension element is held in as horizontal a position as possible by the tension triangle, even under external loads such as wind loads, or quickly returns to this position.
• the holding cable can comprise an elastic element and/or be connected to the extension element via an elastic element.
• the holding cable is designed as an elastic element (for example as a cable that is at least partially elastic).
• the elastic element can be an elastic cable, an elastic cable section, a spring, in particular a spiral spring and/or the like.
• the holding cable can, for example, be partially wound up on a roller or shaft, which roller/shaft is pre-tensioned with an elastic element (for example a torsion spring) so that the holding cable rolls up when no tensile force acts on the holding cable.
• an elastic element for example a torsion spring
• the elastic element causes the distance d between the holding rope connecting element and the pulling rope deflection element to increase when the material web is transferred from the rolled-up state to the unrolled state (i.e. is pulled on the pulling rope) and to decrease accordingly when no or only a small pulling force is applied.
• the limitation of the maximum distance d between the tether connecting element and the traction cable deflection element can be achieved by choosing the length and/or the elasticity of the tether or the elastic element.
• the tether fastening element is configured to be movable relative to the tether connecting element and is pretensioned by an elastic element such that the distance d between the tether connecting element and the pull-rope deflection element increases when the material web is transferred from the rolled-up state to the unrolled state (i.e., when the pull-rope is pulled) and decreases accordingly when no or only a slight tensile force is applied. Accordingly, the distance between the tether fastening element and the tether connecting element decreases during unrolling and increases again during rewinding.
• the pull-out element can comprise at least a first and a second holding cable connecting element and optionally at least a first and a second tether attachment element.
• the system comprises a first and a second tether.
• the tether connection elements, pull-cord connection elements, and optional tether attachment elements can be arranged substantially symmetrically, wherein the center of the extension element can form the plane of symmetry.
• the first retaining cable is connected to the first retaining cable connecting element and comprises a first pull cable deflection element at an end facing away from the retaining cable connecting element.
• the first retaining cable is configured such that a distance d between the first retaining cable connecting element and the first pull cable deflection element increases when the material web is transferred from the rolled-up state to the unrolled state.
• the second retaining cable is connected to the second retaining cable connecting element and has a second pull cable deflection element at an end facing away from the retaining cable connecting element.
• the system comprises two traction cables. A first traction cable is then deflected at the first traction cable deflection element, and a second traction cable is deflected at the second traction cable deflection element.
• the maximum distance between the first tether connecting element and the first traction cable deflection element is limited.
• the maximum distance between the second tether connecting element and the second traction cable deflection element is selected such that the holding cables and the traction cable(s) form isosceles triangles (the extension element forms the base) when the material web is transferred from the rolled-up state to the unrolled state.
• the first (or second) holding cable and the part of the traction cable which is guided from the first (or second) traction cable deflection element in the direction of the extension element can enclose an angle ⁇ in the range from 50° to 130°, or in the range from 60° to 120°.
• This triangular arrangement of the holding or tension cables allows for good load distribution within the extension element. This allows for a slim profile for the extension element without causing damage. Furthermore, the extension element is held in as horizontal a position as possible, even when subjected to external loads such as wind loads, or quickly returns to this position.
• the extension element comprises at least a first and a second traction cable connecting element. If a traction cable is present, the traction cable can be connected to the first traction cable connecting element and the second traction cable connecting element and can be deflected by the first traction cable connecting element and the second traction cable connecting element. If multiple traction cables are provided, a first traction cable can be connected to the first traction cable connecting element and a second traction cable can be connected to the second traction cable connecting element.
• the first tether can be connected to the first tether attachment element.
• the first tether connection element is a tether deflection element at which the first tether is deflected.
• the second tether can be connected to the second tether attachment element.
• the second tether connecting element a tether deflection element at which the second tether is deflected.
• the first and/or second tether deflection element is arranged at a medial position of the extension element, and the first and/or second tether fastening element is arranged at a lateral position of the extension element.
• the deflection element(s) are thus located further inward than the fastening elements.
• the first traction cable connecting element is arranged between the first tether deflection element and the first tether fastening element, and further optionally, the second traction cable connecting element is arranged between the second tether deflection element and the second tether fastening element. In particular, this can result in a substantially symmetrical structure.
• the system comprises at least one pretensioning element.
• the pretensioning element can be coupled to the shaft in order to pretension the shaft in an orientation that corresponds to a rolled-up state of the material web.
• the pretensioning element can be a spring, in particular a rotational spring.
• the pretensioning element can comprise a rope or a belt that wraps around the shaft and is coupled to a weight. Unwinding the material web in this case leads to the weight being raised. Lowering the weight allows the material web to be rewound.
• the system can comprise at least one blocking means.
• the blocking means is configured to block rotation of the shaft when the material web has not yet been completely unrolled.
• the material web can be further tensioned even when it is not completely unrolled.
• both ends of the traction cable are connected to a traction cable shaft.
• the traction cable shaft is configured to roll up the traction cable(s). Rolling up the traction cable(s) causes a tensile force to be exerted on the traction cable(s) and the material web
• the traction cable shaft can be coupled to a hand crank and/or a drive (for example, comprising an electric motor). This allows manual and/or motorized operation.
• the system comprises at least one column, which column guides the at least one traction cable. If the system comprises one traction cable, both ends of the traction cable can be guided along the column. If the system comprises multiple traction cables, one end of each of the different traction cables can be guided along the column.
• the column is a telescopic column.
• the telescopic column comprises at least one, in particular two, fold-out arms.
• the traction cable is attached, in particular deflected, to the arm(s).
• the fold-out arm(s) can be configured to be transferred from a folded position to an unfolded position by a tensile force acting on the traction cable.
• a tensile force is exerted on the traction cable (for example, by means of the traction cable shaft), not only is the material web unrolled, but the fold-out arm(s) are also unfolded. This results in the traction cable attached to the arm(s) also being moved outwards from the column.
• the distance between the traction cable ends or between the first and second traction cables is thus increased during unrolling (by unfolding the arm(s)) and decreased during rewinding (by folding the arm(s)).
• the ends of the tension ropes or tension cables can be so close together when the material web is rolled up that they touch each other and act like a single strand of rope.
• the distance between the ends of the tension ropes or tension cables increases, and the tensile force can be transmitted to multiple points on the extension element.
• the extendable arm is associated with a strut that supports the arm in the extended position.
• the strut can be supported by a first end on a base body of the telescopic column and can be hinged to the arm by a second end, which is opposite the first end.
• the arm can be arranged on the column at a first end so that it can be displaced translationally.
• the base body of the telescopic column can comprise a guide rail that guides a carriage translationally.
• the arm can thus be arranged on the column by means of a translationally displaceable carriage.
• the first end of the arm can be connected to the carriage in an articulated manner.
• the column can comprise at least one spacer element.
• the spacer element extends in a direction away from the material web.
• a counter-tension element e.g., a counter-tension cable, a rod, a linkage, and/or the like
• the counter-tension element is arranged such that a tensile force acting on the tension cable can be at least partially absorbed by the counter-tension element and transferred to the spacer element.
• the counter-tension element can be tensioned when at least one foldable arm is extended.
• the counter-tension cable can be relaxed, retracted, and/or coiled.
• the spacer element, the arms (or at least one arm), and the counter-tension element form a kind of truss.
• the arm(s) can then serve as the truss compression element(s), and the counter-tension element(s) as the truss tension element(s).
• the spacer element completes the truss.
• the arm(s) can be designed as metal profiles (particularly aluminum or stainless steel profiles) or as plastic profiles (particularly composite).
• the counter-tension element(s) can comprise a cable, a rod, a linkage, or the like.
• the counter-tension element(s) can be made at least partially of aluminum, steel, stainless steel, or plastic (particularly composite).
• the spacer element can be arranged on the column so as to be translationally displaceable (for example, by means of a carriage).
• the carriage can be coupled to the carriage(s) connected to a first end of the arm(s), such that the arm(s) move translationally substantially synchronously with the spacer element.
• the spacer element is fixed to or integrally formed on at least one carriage, which is connected to a first end of an arm.
• the spacer element can be fixed to or integrally formed on two carriages, each of which is connected to a first end of an arm.
• the spacer element can be arranged at a height on the telescopic column that substantially corresponds to the height of the first end of the arm when the arm is extended.
• the force absorption by the spacer element and the at least one counter-tension element allows the at least one arm and in particular the articulated connection of the arm (as well as the optional slide) to be relatively small. without fear of damage. This saves material and costs.
• a system which comprises a shaft and a material web, wherein the material web is fastened at a first end to the shaft and at a second end to an extension element.
• the extension element is connected to at least one traction cable, wherein the at least one traction cable is attached to a telescopic column, as described above.
• the connection can be direct or indirect.
• traction cable connecting elements for example eyelets, pulleys and/or the like
• an elastic element for example a spring element or an elastic cable section
• the elastic element can be designed integrally with the at least one traction cable.
• the material sheet is a sun sail.
• the system can thus serve as sun protection, for example, on a terrace or on a ship.
• the material sheet can be a net that protects plants underneath from sun, hail, or other weather influences.
• the shaft 10 is rotatable. By rotating the shaft 10, the material web 20 is wound up or unwound. The material web 20 can thus be converted from a wound state to an unwound state by rotating the shaft 20. It is understood that the shaft 10 can be stopped during winding or unwinding, so that the material web 20 can also be wound up or unwound only partially.
• the shaft 10 is coupled to at least one pre-tensioning element 12, 14 (for example, a torsion spring).
• the pre-tensioning element(s) 12, 14 pre-tension the shaft 10 in an orientation that corresponds to a rolled-up state of the material web 20.
• the material web 20 is automatically rolled up or rewound when no tensile force acts on the material web.
• pre-tensioning elements can be provided so that the material web is initially unrolled and a force is applied to the shaft. to roll up the material web.
• the pull rope(s) can be pre-tensioned accordingly.
• the extension element 30 further comprises a first tether fastening element 32a and a second tether fastening element 32b.
• a first tether 40 is connected at a first end to the first tether fastening element 32a and is deflected at the first tether connecting element 34a, which here is a tether deflection element.
• the first tether 40 comprises a first pull-cord deflection element 44.
• the first retaining cable fastening element 32a can, for example, be an eyelet.
• the first retaining cable shown here is firmly attached to the first retaining cable fastening element 32a (e.g., clamped, screwed, or knotted). From the first retaining cable fastening element 32a, the retaining cable 40 is guided substantially parallel to the second end of the material web. 20 to the holding cable connecting element 34a, which here is a holding cable deflection element, and is deflected there.
• the holding cable connecting element 34a can also be an eyelet, or, for example, comprise a roller over which the first holding cable 40 is guided.
• the first holding cable 40 is connected to a pulling cable 60 of the system 1 via the pulling cable deflection element 44.
• the pulling cable deflection element 44 can, for example, be an eyelet through which the pulling cable 60 is guided, or comprise a roller that guides the pulling cable 60.
• a second tether 50 is connected at a first end to the second tether fastening element 32b and is deflected at the second tether connecting element 34b, which here is a tether deflection element.
• the second tether 50 comprises a second traction cable deflection element 54.
• the second tether fastening element 32b can be an eyelet, for example.
• the second tether shown here is firmly attached to the second tether fastening element 32b (e.g., clamped, screwed, or knotted).
• the tether 50 is guided essentially parallel to the second end of the material web 20 to the tether connecting element 34b, which here is a tether deflection element, where it is deflected.
• the tether connecting element 34b can also be an eyelet, or, for example, comprise a roller over which the second tether 50 is guided.
• the second tether 50 is connected to the traction cable 60 of the system 1 via the traction cable deflection element 54.
• the traction cable deflection element 54 can, for example, be an eyelet through which the traction cable 60 is guided, or can comprise a roller that guides the traction cable 60.
• the pull cable 60 is guided from the column 80 to the extension element 30. Pulling on the pull cable 60 causes the material web to be unrolled.
• the extension element 30 has a first pull cable connecting element 36a. and a second traction cable connecting element 36b.
• the traction cable is guided from the column 80 to the first traction cable connecting element 36a and deflected there.
• the traction cable 60 then runs essentially parallel to the second end 24 of the material web to the second traction cable connecting element 36b.
• the traction cable 60 is deflected again and guided back to the column 80.
• two separate traction cables (not shown) can also be used. In this case, one traction cable can be firmly attached to the traction cable connecting element 36a or 36b.
• the Figures 1A to 1C show the material web 20 in the unrolled state.
• the holding cables and the pulling cable form a so-called force triangle.
• a first force triangle is spanned between the first pulling cable deflection element 44, the first holding cable connecting element 34a and the first pulling cable connecting element 36a.
• the distance between the first holding cable connecting element 34a and the first pulling cable connecting element 36a is determined by the extension element 30.
• the distance between the pulling cable deflection element 44 and the first holding cable connecting element 34a is variable, as described in detail with reference to the Figures 2A and 2B is explained.
• a second force triangle is spanned between the second traction cable deflection element 54, the second tether connecting element 34b, and the second traction cable connecting element 36b.
• the distance between the second tether connecting element 34b and the second traction cable connecting element 36b is also determined by the extension element 30.
• the distance between the traction cable deflection element 54 and the second tether connecting element 34b is variable.
• the holding cables 40, 50 each comprise an elastic element 42, 52. This allows the distance between the holding cable connecting element 34a, 34b and the corresponding traction cable deflection element 44, 54 to increase or decrease.
• a tensile force applied to the traction cable 60 is partially transferred to the first 40 or second holding cable 50 at the traction cable deflection element 44 or 54 and thus transferred to the extension element via the traction cable and the corresponding holding cable.
• FIG 1B A system is shown whose column 80 has only one extendable arm 82a.
• the system which in Figure 1C
• the column 80 shown has a conventional column 80 without extendable arms. It is understood that the pull cable 60 can also be guided along other structures, such as a house wall, a post, a tree, and/or the like.
• FIGs 2A and 2B show a schematic detailed representation of the cable guide of the holding cable 40 and the pulling cable 60 on the extension element 30.
• the material web is in the rolled-up state and no or a very low tensile force F is acting. In this state, a distance d between the holding cable connecting element 34a and the corresponding pull cable deflection element 44 is small.
• the holding cable connecting element 34a and the corresponding pull cable deflection element 44 can touch.
• the pull cable 60 and the holding cable 40 can then run essentially parallel. In the rolled-up state of the material web, the pull cable 60 and the holding cable 40 therefore run very close to the extension element 30.
• the holding cable 40 can be at least partially within the extension element 30.
• the distance x between the holding cable connecting element 34a and the pulling cable connecting element 36a is fixed and determined by the extension element 30.
• the elastic element e.g. a spiral spring or an elastic rope
• the elastic element is relaxed.
• the maximum distance d has been reached.
• the resulting force triangle is essentially isosceles.
• the holding cable 40 and the portion of the traction cable 60 that is guided between the traction cable deflection element 44 and the traction cable connecting element 36a form an angle ⁇ in the range of 50° to 130°, or in the range of 60° to 120°. In the example shown, ⁇ is approximately 80°. An angle ⁇ of approximately 120° is particularly preferred.
• Figure 2C shows a variant of the cable guide.
• the retaining cable 40 is connected to the retaining cable fastening element 32a.
• the retaining cable fastening element 32a is mounted so that it can move (in particular, translationally) and can be pretensioned via the elastic element 42 (for example, a coil spring).
• the retaining cable 40 can be non-elastic in this example.
• the tether can be deflected on the extension element before being connected to a tether fastening element.
• FIG 3 shows again the pull-out element 30 and the shaft 10, which have already been shown in detail with reference to Figure 1A described.
• the material web 20 is completely rolled up and no or very little tensile force acts on the traction cable 60. Accordingly, the distance between the holding cable connecting element 34a and the corresponding traction cable deflection element 44, as well as the distance between the holding cable connecting element 34b and the corresponding traction cable deflection element 54, is small. This means that the two traction cable deflection elements 44, 54 are also very closely spaced.
• the traction cable strands 62, 64 which run away from the extension element, can thus be guided essentially parallel and closely spaced. The system is therefore very space-saving when rolled up.
• FIGS. 4A , 4B and 4C show a schematic representation of a telescopic column 80 with two extendable arms 82a, 82b.
• the functional principle described here is analogous to telescopic columns with only one extendable arm, as is the case, for example, in Figure 1B is shown.
• FIG 4A The telescopic column is shown with folded arms 82a, 82b.
• the traction cable strands 62, 64 which extend from the free ends 82a2, 82b2 of the arms 82a, 82b in the direction of the material web, are located close together (the distance is small). In this state, no or only a small tensile force acts on the traction cable 60 (or the traction cable strands 62, 64).
• the illustration from Figure 4A corresponds to the rolled-up state of the material web.
• Figure 4B the arms 82a, 82b are partially unfolded and in Figure 4C fully unfolded.
• the state in Figure 4C corresponds to the unrolled state of the material web.
• the tension cable strands 62, 64 are widely spaced from each other.
• a traction cable shaft 70 In order to apply a tensile force to the traction cable 60, at least one end of the traction cable 60 is connected to a traction cable shaft 70.
• the traction cable shaft 70 is configured to wind up the traction cable 60.
• a hand crank and/or a drive (in particular an electric motor) can be provided for this purpose.
• a tensile force applied to the traction cable 60 causes the material web to unwind and the arms 82a, 82b of the telescopic column 80 to unfold.
• a strand 62, 64 of the traction cable 60 is guided or attached to the free ends 82a2, 82b2 of the foldable arms 82a, 82b.
• the foldable arms 82a, 82b are designed to be folded from a retracted position (see Fig. 4A ) into an unfolded position (see Fig. 4C ) to be transferred.
• a counter-traction element 90 can be attached to each of the arms 82a, 82b, as shown in Figure 5 is shown.
• the traction cable 60 (or two separate traction cables) is guided from the free ends 82a2, 82b2 along the arms 82a, 82b. In the region of an end 82a1, 82b1 opposite the free end, the traction cable 60 is deflected and guided toward the upper end of the column 80. There, it is deflected again and guided toward the traction cable shaft 70.
• Each extendable arm 82a, 82b is associated with a strut 84a, 84b.
• This strut 84a, 84b supports the associated arm 82a, 82b in the extended position.
• the strut 84a is hinged to the arm 82a on a first side and to the column 80 on a second side.
• the strut 84b is hinged to the arm 82b on a first side and to the column 80 on a second side.
• the respective first end 82a1, 82b1 of the arms 82a, 82b is arranged on the column 80 for translational movement.
• the end 82a1, 82b1 can be pivotally connected to a translationally movable carriage 86a, 86b, which is guided by a slide rail (not shown) of the column 80.
• the carriages 86a, 86b can be coupled, so that they move up and down together. This ensures that arms 82a and 82b fold out and in together.
• this slide can at least partially encompass the base body of the column and thus be moved up and down.
• each extendable arm 82a, 82b can be assigned an elastic element (e.g., a spring) that preloads the extendable arm 82a, 82b in the retracted position.
• the arm 82a, 82b thus returns to the retracted position when no (or only a slight) tensile force acts on the traction cable(s).
• the arms 82a, 82b can return to the retracted position due to the force of gravity when no (or only a slight) tensile force acts on the traction cable(s).
• Figure 5 shows a schematic plan view of a telescopic column 80.
• the telescopic column comprises a first arm 82a and a second arm 82b. These are shown in the unfolded state.
• the arms 82a, 82b are each articulated to a carriage 86a, 86b, wherein the carriages are mounted on the base body of the column 80 for translational displacement.
• the arms 82a, 82b are supported by struts 84a, 84b.
• a spacer element 92 is arranged on the telescopic column 80 (in particular on a side of the telescopic column 80 facing away from the material web).
• the spacer element 92 can be fixed or mounted on the base body of the column 80 for translational displacement.
• a carriage can be provided with which the spacer element 92 is fixed.
• This carriage can also be coupled to the carriages 86a, 86b, so that The spacer element 92 moves up and down translationally on the column essentially synchronously with the arms 82a, 82b.
• the spacer element 92 can be fixed to at least one of the carriages 86a, 86b or formed integrally.
• the spacer element 92 extends in the direction away from the material web.
• the spacer element 92 is arranged at a height on the telescopic column 80 that essentially corresponds to the height of the first ends 82a1, 82b1 of the arms 82a, 82b when they are unfolded.
• a counter-tension element 90 is attached and/or deflected to the spacer element 92 and is connected to the free ends 82a2, 82b2 of the arms 82a, 82b.
• the counter-tension element 90 is preferably connected to the free end 82a2, 82b2 of the arm 82a, 82b at a location opposite the corresponding traction cable strand 62, 64.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Tents Or Canopies (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=89941100

Family Applications (1)

Country Status (1)

Citations (3)

• 2024
  • 2024-02-14 EP EP24157597.6A patent/EP4603655A1/fr active Pending

Patent Citations (3)

Similar Documents

Legal Events