EP3450648B1 - Retaining device - Google Patents
Retaining device Download PDFInfo
- Publication number
- EP3450648B1 EP3450648B1 EP18191086.0A EP18191086A EP3450648B1 EP 3450648 B1 EP3450648 B1 EP 3450648B1 EP 18191086 A EP18191086 A EP 18191086A EP 3450648 B1 EP3450648 B1 EP 3450648B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- edge body
- barrier device
- edge
- bridge
- hollow chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000004888 barrier function Effects 0.000 claims description 47
- 229920002877 acrylic styrene acrylonitrile Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- YAAQEISEHDUIFO-UHFFFAOYSA-N C=CC#N.OC(=O)C=CC=CC1=CC=CC=C1 Chemical compound C=CC#N.OC(=O)C=CC=CC1=CC=CC=C1 YAAQEISEHDUIFO-UHFFFAOYSA-N 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
- E04D2013/0413—Strainers for drainage outlets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0459—Drainage borders, e.g. dripping edges, gravel stops or dispersers
- E04D2013/0472—Gravel stops
Definitions
- the present invention relates to a barrier device comprising an at least partially hollow edge body which bounds an inner space and leaves this inner space clear, which edge body is intended and configured to be received on a surface and comprises at least one at least partially hollow chamber.
- Such a barrier device can be applied on a flat or slightly pitched roof on which a roof covering is fixed by a ballast in the form of a bulk material such as gravel or stone chippings or on which another loose substrate lies, such as for instance a layer of earth for a roof garden.
- the barrier device is in that case advantageously applied around for instance a roof anchor, roof duct or other opening or upstand which it is desirable to keep free of substrate.
- the edge body forms a barrier to the bulk material here and thus keeps the inner space clear.
- the present invention has for its object, among others, to provide such a barrier device which can be applied in practical and flexible manner in diverse situations.
- US 5 051 175 A discloses a drain guard and US 4 648 203 A1 discloses a tree protector.
- the invention provides a barrier device according to claim 1, which has the feature that in a first orientation the edge body is nestable in the at least one hollow chamber of a corresponding further barrier device, and that in a second orientation the edge body is stackable with the edge body of a corresponding further barrier device up to a combined height which is significantly greater than an individual height of the edge body.
- the device according to the invention is more particularly characterized here in that the edge body is movable from the first orientation to the second, and vice versa, by rotating the barrier device about a central axis.
- the barrier device In the first orientation the barrier device is thus nestable with a number of substantially identical barrier devices to form a first stack with a limited total height so that only limited space is taken up thereby, for instance during transport and storage.
- the edge body On the roof the edge body does however provide a full barrier height in order to effectively hold back the ballast material, and in the case of thicker ballast layers the device can if desired be moved to the second stacked situation by relative rotation with a number of substantially identical barrier devices in order to reach a combined second height which is significantly greater than the individual height alone.
- a particular embodiment of the barrier device has the feature according to the invention that on a side remote from the inner space a flat flanged edge extends from the edge body with which the edge body supports on a surface.
- the flanged edge can serve here to receive thereon a layer of the surrounding substrate as ballast with which the device is already at least partially fixed.
- the flanged edge moreover provides an excellent basis for an adhesion of the device to the surface.
- the barrier device according to the invention is characterized here in that the flanged edge comprises one or more through-openings.
- the openings allow an adhesive agent, such as a sealant or glue, applied for adhesion of the device to protrude therethrough as indication that (sufficient) adhesive agent has been applied.
- the edge body can thus be fixed in various ways via the flanged edge.
- a preferred embodiment of the barrier device has the feature according to the invention that the roof of the hollow chamber comprises at least one opening through which the hollow chamber is in open communication with an area surrounding the edge body. Because of this opening, floating and an associated upward pressing action on the device is counteracted in the case of a high surrounding water level. The opening also suppresses an aerodynamic pressure difference between the chamber and the surrounding area and the consequent upward lift effect during storm and strong wind. An extra load on the adhesion of the device to the surface is thus avoided in both cases.
- the edge body comprises on a base at least one bridge which maintains, when received on said surface, a distance from the surface, that the hollow chamber comprises locally, in particular adjacently of the bridge, a lateral widened portion which is bounded by the side walls narrowing in height direction and a roof on an upper side thereof, and that in the second stacked situation of the device the bridge can drop along at least a part of said distance over the roof of the widened portion of the hollow chamber of a further barrier device located thereunder.
- the edge body comprises on a periphery thereof an edge that comprises said at least one bridge and said at least partially hollow chamber comprises a base which lies at least in line with said edge.
- the device can be nested here by bringing separate barrier devices with the hollow chambers in line with each other in the first orientation, and thus nesting them within each other.
- a stable stacking will however result from placing the device, in the second orientation, with the bridge on the roof of the hollow chamber of an underlying device, wherein the bridge moreover stabilizes the device effectively on the underlying device by dropping partially over the roof thereof.
- a further preferred embodiment of the barrier device according to the invention has the feature that the bridge extends over a full width from an external periphery of the edge body facing toward an outside area to the periphery of the edge body facing toward the inner space, and in doing so maintains the distance from the surface.
- the bridge thus provides not only a stacking function but also a continuous drainage channel from or to the inner space.
- the barrier device has the feature in a further preferred embodiment that the edge body comprises a moulded body, in particular an injection-moulded body of at least one plastic, more particularly an injection-moulded body of one plastic from a group of acrylonitrile-styrene-acrylate (ASA), polypropylene and polystyrene.
- ASA acrylonitrile-styrene-acrylate
- the barrier device shown in figures 1-3 comprises a form-closed, here round, edge body 10 formed in wholly integral manner by thermoforming from a suitable plastic, such as in this case acrylonitrile-styrene-acrylate (ASA).
- ASA acrylonitrile-styrene-acrylate
- Use is made for the purpose in this case of an injection-moulded body 10 obtained by injection moulding from a mould serving for this purpose.
- the whole is optionally provided at least on the visible side with a UV-resistant coating in order to counter premature ageing as a result of incident sunlight.
- the edge body typically has a diameter in the order of 416 millimetres and a height typically in the order of 60 millimetres, and leaves clear an inner space 20 with a diameter typically in the order of 230 millimetres.
- the edge body 10 is hollow in that a continuous hollow chamber 40 is present therein which extends all the way round and is open on an underside.
- Hollow chamber 40 is bounded here by upright walls 41,42 which narrow in upward direction. These walls typically have a wall thickness in the order of several millimetres; in this case 4 millimetres.
- transverse ribs 44 and longitudinal ribs 45 are placed at regular distances from each other in hollow chamber 40.
- a flanged edge 11 Formed on the edge body is a flanged edge 11 which is about 10-20 millimetres wide and interrupted by a number of bridges 12 which each maintain a distance d from a surface.
- Bridges 12 extend over a full width of edge body 10 and thus form continuous drainage channels 22 for inner space 20 which extend through edge body 10 from inner space 20 to the outer area located outside edge body 10.
- the device can be adhered in appropriate manner to a surface by means of the flat flanged edge 11, in particular by means of glueing or sealing. Openings 14 formed in the edge here allow the applied adhesive to protrude therethrough and, after curing, to form a toadstool-shaped anchor.
- the device thus provides an excellent adhesion to flat to slightly pitched roofs with a polymer roof covering, for instance of bitumen, such as atactic polypropylene (APP), styrene-butadiene-styrene (SBS) or of ethylene-propylene-diene-monomer (EPDM).
- bitumen such as atactic polypropylene (APP), styrene-butadiene-styrene (SBS) or of ethylene-propylene-diene-monomer (EPDM).
- An excess of adhesive agent can be arranged for this purpose in one or more recesses or grooves 24 provided for the purpose on an underside of the device, see figure 3 .
- the adhesive agent for instance a butylene sealant or similar polymer paste, can be applied in excess therein all around the device, for instance in the form of a ridge or bead, either on site or ex factory, in which latter case a protective film, for instance a siliconized paper, will cover and protect the adhesive agent until assembly.
- a radial widened portion 15 of the hollow chamber 40 present in the edge body which is also bounded laterally at that position by the walls 41,42 narrowing in height direction.
- These widened portions 15 of hollow chamber 40 have in each case adjacently of a bridge 12 a base lying in line with flanged edge 11.
- On an upper side the widened portions 15 of hollow chamber 40 are bounded in each case by a roof 43 which transposes integrally into walls 41,42.
- the barrier devices By bringing a set of such barrier devices 10 into line with each other so that widened portions 15 of successive barrier devices drop over each other, the barrier devices can be nested to form a compact stack with a first combined height. From this first orientation the barrier devices can however be brought into a second relative orientation by turning each subsequent even device of the barrier devices about a central axis H of the barrier device through an angle relative to the preceding one. This angle is about 90 degrees here and ensures that bridge 12 of an upper edge body 10 situated above drops over the roof of a widened portion 15 of an edge body lying below.
- This latter situation results in an elevated, stable second stack with a second combined height.
- This second height amounts approximately to a multiple of the individual heights of the barrier devices of the stack.
- An elevated barrier can thus be raised if desired around inner space 20, with a greater overall height than would be possible with only one barrier device, by stacking a corresponding number of barrier devices to form such a second stack.
- Each bridge 12 drops here over a part of its height d over roof 43 of the edge body lying below, this contributing significantly toward maintaining stability of the (second) stack.
- the edge body has a number of recesses (depressions) 30 at 90 degrees from each other. These recesses 30 thus form passages for an anchor line which can be attached to an anchor point which in a practical application of the device is present in inner space 20.
- Several aerating or ventilating openings 16 are moreover formed in roof 43 of the internal hollow chamber through which the chamber is in aerodynamic open communication with the surrounding area. A pressure difference with the surrounding area is thus avoided, and thereby a possible lift effect in the case of strong wind or storm.
- edge body can have another optionally closed periphery, for instance a wholly or partially polygonal periphery, in particular a square periphery or a semicircle.
- the edge body can optionally be incorporated in prefabricated form or be assembled to size on site or be separated from a larger whole.
- a form-closed edge body can in particular be divided for instance into a number of, in particular two, semicircular, partially open smaller edge bodies.
- thermoplastic such as for instance polypropylene (PP) or polystyrene (PS)
- PP polypropylene
- PS polystyrene
- ASA acrylonitrile-styrene-acrylate
- the device can be manufactured, in particular cast, from another raw material, such as for instance a metal such as aluminium.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Description
- The present invention relates to a barrier device comprising an at least partially hollow edge body which bounds an inner space and leaves this inner space clear, which edge body is intended and configured to be received on a surface and comprises at least one at least partially hollow chamber.
- Such a barrier device can be applied on a flat or slightly pitched roof on which a roof covering is fixed by a ballast in the form of a bulk material such as gravel or stone chippings or on which another loose substrate lies, such as for instance a layer of earth for a roof garden. The barrier device is in that case advantageously applied around for instance a roof anchor, roof duct or other opening or upstand which it is desirable to keep free of substrate. The edge body forms a barrier to the bulk material here and thus keeps the inner space clear.
- The present invention has for its object, among others, to provide such a barrier device which can be applied in practical and flexible manner in diverse situations.
-
US 5 051 175 A discloses a drain guard andUS 4 648 203 A1 discloses a tree protector. - In order to achieve the stated object the invention provides a barrier device according to claim 1, which has the feature that in a first orientation the edge body is nestable in the at least one hollow chamber of a corresponding further barrier device, and that in a second orientation the edge body is stackable with the edge body of a corresponding further barrier device up to a combined height which is significantly greater than an individual height of the edge body.
- The device according to the invention is more particularly characterized here in that the edge body is movable from the first orientation to the second, and vice versa, by rotating the barrier device about a central axis.
- In the first orientation the barrier device is thus nestable with a number of substantially identical barrier devices to form a first stack with a limited total height so that only limited space is taken up thereby, for instance during transport and storage. On the roof the edge body does however provide a full barrier height in order to effectively hold back the ballast material, and in the case of thicker ballast layers the device can if desired be moved to the second stacked situation by relative rotation with a number of substantially identical barrier devices in order to reach a combined second height which is significantly greater than the individual height alone. This makes the barrier device according to the invention exceptionally practical, efficient and universally employable.
- For an effective connection to a roof covering or other surface a particular embodiment of the barrier device has the feature according to the invention that on a side remote from the inner space a flat flanged edge extends from the edge body with which the edge body supports on a surface. The flanged edge can serve here to receive thereon a layer of the surrounding substrate as ballast with which the device is already at least partially fixed.
- The flanged edge moreover provides an excellent basis for an adhesion of the device to the surface. In a further particular embodiment the barrier device according to the invention is characterized here in that the flanged edge comprises one or more through-openings. The openings allow an adhesive agent, such as a sealant or glue, applied for adhesion of the device to protrude therethrough as indication that (sufficient) adhesive agent has been applied. The edge body can thus be fixed in various ways via the flanged edge.
- In order to prevent a difference in pressure between the hollow chamber and the surrounding area, particularly in the case of strong wind over the barrier device or in the case the barrier device is immersed, a preferred embodiment of the barrier device has the feature according to the invention that the roof of the hollow chamber comprises at least one opening through which the hollow chamber is in open communication with an area surrounding the edge body. Because of this opening, floating and an associated upward pressing action on the device is counteracted in the case of a high surrounding water level. The opening also suppresses an aerodynamic pressure difference between the chamber and the surrounding area and the consequent upward lift effect during storm and strong wind. An extra load on the adhesion of the device to the surface is thus avoided in both cases.
- According to the invention the edge body comprises on a base at least one bridge which maintains, when received on said surface, a distance from the surface, that the hollow chamber comprises locally, in particular adjacently of the bridge, a lateral widened portion which is bounded by the side walls narrowing in height direction and a roof on an upper side thereof, and that in the second stacked situation of the device the bridge can drop along at least a part of said distance over the roof of the widened portion of the hollow chamber of a further barrier device located thereunder. In a particularly practical embodiment, the edge body comprises on a periphery thereof an edge that comprises said at least one bridge and said at least partially hollow chamber comprises a base which lies at least in line with said edge.
- The device can be nested here by bringing separate barrier devices with the hollow chambers in line with each other in the first orientation, and thus nesting them within each other. A stable stacking will however result from placing the device, in the second orientation, with the bridge on the roof of the hollow chamber of an underlying device, wherein the bridge moreover stabilizes the device effectively on the underlying device by dropping partially over the roof thereof.
- For the purpose of an effective drainage of the inner space in the case of rainwater or other precipitation, a further preferred embodiment of the barrier device according to the invention has the feature that the bridge extends over a full width from an external periphery of the edge body facing toward an outside area to the periphery of the edge body facing toward the inner space, and in doing so maintains the distance from the surface. The bridge thus provides not only a stacking function but also a continuous drainage channel from or to the inner space.
- With a cost price reduction in mind, the barrier device according to the invention has the feature in a further preferred embodiment that the edge body comprises a moulded body, in particular an injection-moulded body of at least one plastic, more particularly an injection-moulded body of one plastic from a group of acrylonitrile-styrene-acrylate (ASA), polypropylene and polystyrene.
- The invention will be further elucidated hereinbelow on the basis of an exemplary embodiment and an accompanying drawing. In the drawing:
- Figure 1
- is a perspective top view of an exemplary embodiment of the device according to the invention;
- Figure 2
- is a diametrical top view of the device of
figure 1 ; and - Figure 3
- is a bottom view of the device of
figure 1 . - It is otherwise noted that the figures are purely schematic and not always drawn to (the same) scale. Some dimensions in particular may be exaggerated to greater or lesser extent for the sake of clarity. Corresponding parts are designated in the figures with the same reference numeral.
- The barrier device shown in
figures 1-3 comprises a form-closed, here round,edge body 10 formed in wholly integral manner by thermoforming from a suitable plastic, such as in this case acrylonitrile-styrene-acrylate (ASA). Use is made for the purpose in this case of an injection-mouldedbody 10 obtained by injection moulding from a mould serving for this purpose. The whole is optionally provided at least on the visible side with a UV-resistant coating in order to counter premature ageing as a result of incident sunlight. - The edge body typically has a diameter in the order of 416 millimetres and a height typically in the order of 60 millimetres, and leaves clear an inner space 20 with a diameter typically in the order of 230 millimetres. Internally the
edge body 10 is hollow in that a continuoushollow chamber 40 is present therein which extends all the way round and is open on an underside.Hollow chamber 40 is bounded here byupright walls edge body 10, obliquely placedtransverse ribs 44 andlongitudinal ribs 45, likewise with a wall thickness in the order of 3 or 4 millimetres, are placed at regular distances from each other inhollow chamber 40. - Formed on the edge body is a
flanged edge 11 which is about 10-20 millimetres wide and interrupted by a number ofbridges 12 which each maintain a distance d from a surface.Bridges 12 extend over a full width ofedge body 10 and thus formcontinuous drainage channels 22 for inner space 20 which extend throughedge body 10 from inner space 20 to the outer area located outsideedge body 10. The device can be adhered in appropriate manner to a surface by means of the flat flangededge 11, in particular by means of glueing or sealing.Openings 14 formed in the edge here allow the applied adhesive to protrude therethrough and, after curing, to form a toadstool-shaped anchor. The device thus provides an excellent adhesion to flat to slightly pitched roofs with a polymer roof covering, for instance of bitumen, such as atactic polypropylene (APP), styrene-butadiene-styrene (SBS) or of ethylene-propylene-diene-monomer (EPDM). - An excess of adhesive agent can be arranged for this purpose in one or more recesses or
grooves 24 provided for the purpose on an underside of the device, seefigure 3 . The adhesive agent, for instance a butylene sealant or similar polymer paste, can be applied in excess therein all around the device, for instance in the form of a ridge or bead, either on site or ex factory, in which latter case a protective film, for instance a siliconized paper, will cover and protect the adhesive agent until assembly. - Situated adjacently of each of the
bridges 12 is a radial widenedportion 15 of thehollow chamber 40 present in the edge body which is also bounded laterally at that position by thewalls portions 15 ofhollow chamber 40 have in each case adjacently of a bridge 12 a base lying in line withflanged edge 11. On an upper side the widenedportions 15 ofhollow chamber 40 are bounded in each case by aroof 43 which transposes integrally intowalls - By bringing a set of
such barrier devices 10 into line with each other so that widenedportions 15 of successive barrier devices drop over each other, the barrier devices can be nested to form a compact stack with a first combined height. From this first orientation the barrier devices can however be brought into a second relative orientation by turning each subsequent even device of the barrier devices about a central axis H of the barrier device through an angle relative to the preceding one. This angle is about 90 degrees here and ensures thatbridge 12 of anupper edge body 10 situated above drops over the roof of a widenedportion 15 of an edge body lying below. - This latter situation results in an elevated, stable second stack with a second combined height. This second height amounts approximately to a multiple of the individual heights of the barrier devices of the stack. An elevated barrier can thus be raised if desired around inner space 20, with a greater overall height than would be possible with only one barrier device, by stacking a corresponding number of barrier devices to form such a second stack. Each
bridge 12 drops here over a part of its height d overroof 43 of the edge body lying below, this contributing significantly toward maintaining stability of the (second) stack. - The edge body has a number of recesses (depressions) 30 at 90 degrees from each other. These
recesses 30 thus form passages for an anchor line which can be attached to an anchor point which in a practical application of the device is present in inner space 20. Several aerating or ventilatingopenings 16 are moreover formed inroof 43 of the internal hollow chamber through which the chamber is in aerodynamic open communication with the surrounding area. A pressure difference with the surrounding area is thus avoided, and thereby a possible lift effect in the case of strong wind or storm. - Although the invention has been further elucidated above with reference to only a single exemplary embodiment, it will be apparent that the invention is by no means limited thereto. On the contrary, many variations and embodiments are still possible within the scope of the invention for a person with ordinary skill in the art. Use is thus made in the example of a wholly round edge body, although the edge body can have another optionally closed periphery, for instance a wholly or partially polygonal periphery, in particular a square periphery or a semicircle. The edge body can optionally be incorporated in prefabricated form or be assembled to size on site or be separated from a larger whole. A form-closed edge body can in particular be divided for instance into a number of, in particular two, semicircular, partially open smaller edge bodies.
- Although they are practical, the materials and dimensions stated in the example can likewise be replaced by alternative sizes and materials. Another thermoplastic, such as for instance polypropylene (PP) or polystyrene (PS), can in particular be applied for the edge body instead of the acrylonitrile-styrene-acrylate (ASA) applied in the example, or the device can be manufactured, in particular cast, from another raw material, such as for instance a metal such as aluminium.
Claims (9)
- Barrier device for providing clearance to a free inner space, comprising an at least partially hollow edge body (10) which extends in a height direction and which is intended and configured to be received on a surface while bounding said inner space (20), wherein said edge body (10) comprises an at least partially hollow chamber that is bounded laterally by side walls (41, 42) and on an upper side by a roof, wherein said side walls narrow in said height direction such that, in a first orientation, the edge body (10) is nestable in said at least partially hollow chamber of a corresponding further barrier device up to a first combined height, characterized in that in a second orientation the edge body is stackable with the edge body of said corresponding further barrier device to form a stable stack with a second combined height which is greater than the first combined height, in that the edge body comprises at a base at least one bridge (12) which maintains, when received on said surface, a distance to the surface, in that said at least partially hollow chamber comprises locally, in particular adjacently of a bridge, a lateral widened portion (15) which is bounded by said side walls (41; 42) and said roof (43), and in that, in the second, stacked orientation, said bridge can drop along at least a part of said distance over the roof of the widened portion of the hollow chamber of said corresponding further barrier device, such that in said second, stacked orientation said bridge is installed on top of a part of said roof.
- Barrier device as claimed in claim 1, characterized in that the edge body transitions from the first orientation to the second orientation, and vice versa, by rotating the barrier device about a central axis.
- Barrier device as claimed in claim 1 or 2, characterized in that on a side remote from the inner space a flat flanged edge (11) extends from the edge body with which the edge body supports on a surface.
- Barrier device as claimed in claim 3, characterized in that the flanged edge comprises one or more through-openings (14).
- Barrier device as claimed in claim 4, characterized in that the flanged edge comprises on a back side one or more recesses (24) extending in a peripheral direction and over the openings.
- Barrier device as claimed in one or more of the preceding claims, characterized in that said roof comprises at least one opening (16) through which the hollow chamber is in open communication with an area surrounding the edge body.
- Barrier device as claimed in one or more of the preceding claims, characterized in that the edge body comprises on a periphery thereof an edge that comprises said at least one bridge, in that said at least partially hollow chamber comprises a base which lies at least in line with said edge.
- Barrier device as claimed in one or more of the preceding claims, characterized in that the bridge extends over a full width of said edge body from an external periphery of the edge body, facing toward an outside area, to an inner periphery of the edge body, facing toward the inner space, while maintaining a distance from the surface.
- Barrier device as claimed in one or more of the preceding claims, characterized in that the edge body comprises a moulded body, in particular an injection-moulded body of at least one plastic, more particularly an injection-moulded body of one plastic from a group of acrylonitrile-styrene-acrylate (ASA), polypropylene and polystyrene.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2019465A NL2019465B1 (en) | 2017-08-30 | 2017-08-30 | Reversing device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3450648A1 EP3450648A1 (en) | 2019-03-06 |
EP3450648B1 true EP3450648B1 (en) | 2020-06-03 |
Family
ID=61003306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18191086.0A Active EP3450648B1 (en) | 2017-08-30 | 2018-08-28 | Retaining device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3450648B1 (en) |
NL (1) | NL2019465B1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4648203A (en) * | 1985-07-23 | 1987-03-10 | Feldkircher Wire Fabricating Co., Inc. | Tree protector |
DE8807337U1 (en) * | 1988-06-04 | 1988-09-29 | Grumbach, Emil, 6330 Wetzlar | Gully cover for green roofs and ceilings |
US5051175A (en) * | 1989-12-20 | 1991-09-24 | Roof Accessories, Inc. | Drain guard |
DE19955753B4 (en) * | 1999-11-19 | 2004-02-12 | Harzmann-Optima Marketing- Und Vertriebs Gmbh | Wasserleitprofil |
US7043877B1 (en) * | 2002-11-15 | 2006-05-16 | Daugs, Ammon | Stackable planter |
FI20105066A0 (en) * | 2010-01-26 | 2010-01-26 | Matti Varjus | PLANT GROWTH PROTECTION |
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2017
- 2017-08-30 NL NL2019465A patent/NL2019465B1/en active
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2018
- 2018-08-28 EP EP18191086.0A patent/EP3450648B1/en active Active
Non-Patent Citations (1)
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NL2019465B1 (en) | 2019-03-11 |
EP3450648A1 (en) | 2019-03-06 |
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