EP0056934A2 - Dispositif de fixation d'une bande flexible à une surface - Google Patents

Dispositif de fixation d'une bande flexible à une surface Download PDF

Info

Publication number
EP0056934A2
EP0056934A2 EP82100066A EP82100066A EP0056934A2 EP 0056934 A2 EP0056934 A2 EP 0056934A2 EP 82100066 A EP82100066 A EP 82100066A EP 82100066 A EP82100066 A EP 82100066A EP 0056934 A2 EP0056934 A2 EP 0056934A2
Authority
EP
European Patent Office
Prior art keywords
elastomer
extension
fastening part
clamping device
cushion
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.)
Granted
Application number
EP82100066A
Other languages
German (de)
English (en)
Other versions
EP0056934A3 (en
EP0056934B1 (fr
Inventor
Ralf Ing. Grad. Hahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pirelli Deutschland AG Te Breuberg Bondsrepubliek
Pirelli Sacic Te Baudour Belgie
Original Assignee
VEITH PIRELLI AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VEITH PIRELLI AG filed Critical VEITH PIRELLI AG
Priority to AT82100066T priority Critical patent/ATE13326T1/de
Publication of EP0056934A2 publication Critical patent/EP0056934A2/fr
Publication of EP0056934A3 publication Critical patent/EP0056934A3/de
Application granted granted Critical
Publication of EP0056934B1 publication Critical patent/EP0056934B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/144—Mechanical fastening means
    • E04D5/147—Mechanical fastening means not perforating the flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/141—Fastening means therefor characterised by the location of the fastening means
    • E04D5/143—Fastening means therefor characterised by the location of the fastening means in the field of the flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/144—Mechanical fastening means
    • E04D5/145—Discrete fastening means, e.g. discs or clips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44034—Dissociable gripping members

Definitions

  • the invention relates to a device for fastening a water-impermeable, flexible web made of an elastomer on a wall to be sealed, in particular a flat roof, with a mounting part which can be fastened to the wall and which has a projection with outwardly projecting, undercut side bead, and with an outer Fastening part, the web being clampable between the holding part and the outer fastening part.
  • the waterproof, flexible sheet is a roof skin, which is preferably made of rubber.
  • roof skins are very weather-resistant and to a certain extent also mechanically resistant, so that they are particularly well suited for sealing roofs of all kinds, especially on flat roofs made of concrete.
  • a two-part clamping device which consists of a mounting part which can be fastened directly to the wall and which, e.g. can be attached directly to the wall in question by screws.
  • This holding part or inner clamping part protrudes outward from the wall in the form of a projection and, at a distance from the wall, has an all-round side bead projecting in the direction of the extension of the wall. In cross section, this results in a type of mushroom shape, the undercut described being at the upper end of the stem of the mushroom.
  • the flexible sheet is placed on the wall and over this bracket part.
  • the holder parts are arranged at different distances on the wall so that the flexible web is adequately fastened at the points of the holder parts.
  • the attachment is now carried out in such a way that an open spring washer made of steel is slipped over the mounting part, the spring ring being slightly bent apart to make it easier to put on. After it has been pushed over the side bead, the bending force ceases, so that the spring ring, by its own spring force, pulls the intervening flexible path around the mushroom head and into the undercut. This achieves a certain grid effect and the roof skin is fixed.
  • the invention is therefore based on the object to improve the fastening device described above so that the disadvantageous wrinkling, damage to the flexible web and also the slipping out of the spring ring is eliminated and even greater fastening stability is achieved with simple means.
  • the outer fastening part has a plate-shaped elastic spring plate which is at least partially encased by an elastomer or plastomer, and an elastomer or plastome is provided on all sides to form an elastically yielding cushion arranged opposite the flexible web ren enclosed clamping device as one piece.
  • the material can here the same material as the flexible sheet used, preferably achtudeute for D and the associated fastening part elastomer, 'in particular rubber.
  • the outer fastening part thus has the elastic spring plate on the one hand and the clamping device on the other.
  • the elastic spring plate advantageously ensures that the wind forces acting from outside cannot act on the clamping or stopping point where the waterproof, flexible web is attached to the wall, but are caught on the outer circumference of the spring plate. It is not a rigid structure in which the wind forces could possibly damage the flexible web, but the spring plate is elastic and can distribute pressures caused by wind forces.
  • the elastically yielding cushion which can be produced simply and practically by the all-round sheathing of the clamping device, while the clamping device is enclosed on all sides by the elastomer or plastomer, it may be sufficient if the plate-shaped spring plate is only partially surrounded by the elastomer or plastomer. In a particularly preferred embodiment, however, the elastic spring plate is also completely covered, so that the outer fastening part is an almost completely covered working part.
  • the elastically yielding best resulting from the sheathing of the clamping device also means a particularly strong mounting option in the undercut of the inner mounting part.
  • the cushion encompasses the preferably annular clamping device and the inner edge of the elastic spring plate arranged in the vicinity thereof.
  • the inner edge of the spring plate and also the entire plate-shaped fastening part can be deformed more or less from the geometrically exact circular shape, so that there are triangular, square or polygonal openings (the same also applies to the outer contour of the outer fastening part).
  • the round design is preferred and more economical in terms of production, which is why the invention is referred to as the inner diameter and outer diameter.
  • the elastic spring plate consists of metal and is ring-shaped.
  • the elastic spring plate is inexpensive to manufacture and surrounds the clamping device in a ring shape and supports its spring force to hold the flexible web on the mounting part fastened to the wall to be sealed in question.
  • the elastic spring plate has slots projecting radially inwards from its outer circumference.
  • the mentioned plate shape of the clamping ring and thus the elastic spring plate means truncated cone.
  • the inner diameter of the annular elastic spring plate is practically the middle, lower part of the plate, from which the annular spring plate widens conically outwards.
  • the outer mounting portion near its outer periphery an obliquely inwardly and away from the plate bottom projecting, thin R inglippe on.
  • the flexible membrane is to be installed as a roof covering on a flat roof, there is understandably an uneven surface there, which is specified by the customer.
  • a tension equalization is created by the ring lip when the laying surface is uneven.
  • the ring lip prevents the flexible web from being twisted in the case of uneven surfaces which cause the outer plate of the spring plate to deform or enlarge. The latter is therefore no longer warped on one side and is therefore less exposed to damage.
  • the annular lip also reduces the frictional force between the outer fastening part and the flexible web when the flexible web is installed on the wall in question.
  • the ring lip represents a built-in role, so to speak.
  • the unevenness bridged in this way by means of the ring lip sometimes has the further advantage that a defined counter bearing results for the outer fastening part.
  • the outer fastening part has a protective cap made of elastomer or plastomer in the region of the clamping device.
  • This protective cap can, for example, be integrally formed or otherwise attached to the casing of the outer fastening part.
  • the cap serves a stronger mecha protective effect. It is particularly expedient if the protective cap is arranged at a certain distance from the flexible web in the installed state, so that cushion-like protective surfaces result in particular where the flexible web is pulled over and braced over the holding part. In this part of the web, which mostly has a greater curvature, the protective cap then prevents hail or other mechanical impacts from striking. A flexible sheet is clearly easier to damage by hard impacts when tensioned than when it is not stretched. The arrangement of the protective cap is therefore useful, in particular in the region of the side bead above the annular undercut of the holding part.
  • the clamping device is an open metal spring washer.
  • the design of the ring itself is indeed a spring ring of the known type described at the outset. According to the invention, however, this metal spring ring is enclosed on all sides by the plastomer or elastomer, and it is also a piece with the at least partially encased elastic spring plate.
  • the open spring ring is no longer a separate piece of wire, but in connection with the elastic spring plate, i.e. thus as an outer fastening part, slipped over the (inner) holding part in order in this way to effectively clamp the flexible web between these two parts.
  • the clamping device is a metal wire that can be permanently deformed on one or both sides by twisting. This is also all around telt, and it preferably show on one side, optionally or in the other embodiment also on both sides, the two ends of the metal wire so that they can be deformed, ie twisted like a bag closure.
  • clamping device is an open coil spring. For assembly, this is stretched, but retracts after being slipped over the side bead into the ring-shaped undercut with a clamping effect. It is also conceivable according to the invention if the clamping device is a piece of metal that is permanently deformable in the manner of a hose clamp. The assembly is particularly easy because e.g. a deformation of the wire is only required by a pair of pliers in order to achieve the mounting effect known from hose clamps.
  • Another and preferred embodiment of the invention is characterized in that the elastic spring plate has a permanently deformable, upstanding collar in the region of its hole, as a result of which a kind of crown cork closure is formed.
  • the bracket is fastened to the roof or wall by screws.
  • dynamic loads alternating voltages
  • the screw When the screw is loosened, it can cause the flexible sheet to perforate when it is unscrewed.
  • the measures of the invention apply an additional tensile force to the mounting part or its screw connection when the outer fastening part is assembled. Force fluctuations that occur due to wind load are now advantageously absorbed by the outer fastening part in such a way that the pretensioning of the fastening screw engages does not fall below the required minimum and this fastening screw cannot loosen.
  • a particularly preferred embodiment is further characterized according to the invention in that the open metal spring ring is arranged in the elastically yielding cushion of the elastomer or plastomer and has two extensions which protrude approximately radially in the circumferential direction of the cushion, one of which can be hooked into the other.
  • the two projecting out of the elastomers or plastomers in the upper region of the outer fixing part extensions are arranged at a small distance from each other, so that the open metal spring ring during assembly over the side roll of the support member, together with the flexible sheet back can be overpressed, the mentioned distance between the two protruding extensions possibly increasing temporarily.
  • the distance then decreases and can also be further reduced by hanging one extension in the other.
  • a second extension is shaped to be pulled around and latched to the first extension. This process is done by reducing the distance between the two extensions protruding from the cushion, so that the open metal spring ring is pulled together a little closer and so that the entire fastening of the flexible sheet on the wall or flat roof is firmly anchored to the mounting part.
  • particularly favorable measures to enable this hanging of the one extension into the other consist in that the first extension of the metal spring washer is essentially straight and the second extension at a distance from the outer circumference of the cushion approximately in the circumferential direction over a length which is less than that The distance between the two extensions is bent to the first extension and at the end again Is bent back in a U-shape.
  • This U-shaped bent piece allows easy gripping of the first substantially straight extension, so that the desired effect described above can be achieved with simple means, very reliably and with a practical mounting option.
  • the piece bent back in a U-shape at the end of the second extension has an end part which is bent over again radially outward transversely to the circumferential direction and parallel to the first displacement.
  • the length of this end part then ends approximately at the same height as the first extension that has just been formed.
  • the piece of the second extension which is bent over transversely and runs in the circumferential direction of the cushion is then located in the radial direction approximately between the outlet and the end of the first straight extension.
  • the radially outward straight end part provides good handling, for example by using simple pliers to put the second extension around the first extension so that it can hang in.
  • the holding part 1 consists of a circular disc 2 with a central fastening hole 3 and depressions 4 stamped in from below.
  • An annular collar 5 is attached to the disc 2 from a frustoconical wall projecting approximately perpendicularly from the wall 6 (FIG. 1). which is connected at its lower end to the disk 2 and has a side bead 7 at its upper end to form an annular undercut 8.
  • This mounting part 1 is shown in FIG. 1 by means of the screw 9 on the wall 6, e.g. the flat roof.
  • the water-impermeable, flexible sheet 10 lies on this holding part 1 and is firmly clamped by the outer fastening part 11 with the help of the undercut 8.
  • the outer fastening part 11 has the shape of a plate with an open bottom or a truncated cone, which is essentially given by the shape of the elastic spring plate 12 shown in FIGS. 5 and 6.
  • the outer fastening part 11 has the open spring ring 13 with extensions 14 at its free ends and the frustoconical elastic spring plate 12, both of which are provided with a casing with a bead 15 on the outer circumference a and an elastically yielding cushion 16 on the inner circumference i.
  • FIG. 1 it can also be seen that the outer fastening part 11 near its outer circumference a has a thin annular lip 17 which projects obliquely inwards and away from the plate bottom and which points all around towards the center, as can also be seen in FIG. 1.
  • An annular protective cap 17a is formed on the cushion 16 and covers the hole formed by the inner diameter i at a distance apart from a small central opening 16a.
  • the shape of the fastening part 11 is essentially determined by determines the annular, elastic metal spring plate 12, which is explained with reference to FIGS. 5 and 6. From the drawing it can be seen that the inner diameter 20 of the spring plate 12 is approximately the same size as the diameter D of the spring ring 13 (see FIGS. 4 and 6).
  • the assembled state of the fastening device in Fig. 1 shows that the holding part 1 with its side bead 7 protrudes through the inner opening formed within the inner diameter i of the outer fastening part 11, the flexible web 10 between the cushion 16, supported by the inner circumference i of the spring plate 12, further by the directional force of the spring ring 13 and additionally by the restoring force in the cushion 16, and the side bead 7, is clamped, vigorously, reliably and without undesirable wrinkling, because a large-area pressure distribution is made possible by the new fastening device.
  • FIGS. 9 and 10 show a clamping device in which instead of the open spring ring 13 in the manner of a bag closure, permanently deformable ends protrude laterally on one side (FIG. 9) or on both sides (FIG. 10). These can be twisted permanently like when closing a sack.
  • a clamping device with a self-contained tension spring 20 bent into a ring or an open clock spring (Fig. 12) used.
  • This type of clamping device is assembled by a spreading process by using a spreading device, stretching the cushion area provided with the respective spring, pushing it over the side bead 7 and then removing the spreading device.
  • a clamping device in which a ring made of wire or sheet metal, preferably made of V2A steel, is used in the manner of a hose clamp and is also permanently deformed. It is about. 13 in plan view around a circularly bent metal piece, which has two tabs or loops at two diametrically opposite ends of the circle. As shown in the figures, this piece of metal can preferably be bent in an endless manner in the manner described.
  • FIGS. 15 and 16 Another other type of closure in the manner of a crown cap closure is shown in FIGS. 15 and 16. It can be seen how the elastic spring plate 12 ', which is here completely encased by an elastomer to form the outer fastening part 11', has a collar c projecting outwards in the region of the inner circumference i. This increases the diameter along the circumference i. After this outer fastening part 11 'has been slipped over the side bead 7 of the holding part 1, the upstanding collar c is raised into the position shown in cross section in FIG. 16 with a corresponding tool, as a result of which the diameter in the inner circumference i is reduced. In other words, by reducing this diameter in a desired manner, the elastically yielding cushion 16 penetrates into the annular undercut 8 of the holder partly 1, whereby the desired clamping effect is achieved again.
  • the mounting part 1 also has a slightly changed shape compared to the exemplary embodiment particularly emphasized in FIGS. 1, 7 and 8
  • the extensions 14, 30 according to FIGS. 17 to 21 are, in contrast to the first described embodiment, differently designed and shaped so that one, for example the first extension 14, can be hooked into the other, the second extension 30.
  • the first extension 14 of the metal spring ring 13 is essentially straight, as can be seen particularly clearly from FIGS. 18, 19 and 21. It can be seen from the illustration in FIG. 20 that the extension 14 does not have to be an exact geometric straightness, in which the extension 14 is somewhat bent relative to the exit point from the cushion 16 and is continued radially in another path. 17, 18, 20 and 21 it can also be seen that the ends of the two extensions end approximately at the same distance from the outer circumference of the elastic cushion 16.
  • the second extension 30 is designed differently.
  • the specified distances c, d and length 1 are drawn using the figures for an already mounted metal spring washer 13, while some distances are changed in the unassembled state.
  • the distance c is the distance that the two central axes of the extensions 13 and 30 have along the circumference of the rister 16. Due to the compression, the distance c is therefore somewhat larger from the definition, while it has actually become smaller compared to the relaxed state due to the hanging.
  • the second extension is bent from the outer circumference of the cushion 16 at a distance c - viewed in the circumferential direction of the cushion 16 - over a length 1 to the first extension 14, i.e. 21 upwards, in FIG. 18 downwards and in FIG. 17 pointing towards the viewer.
  • the length 1 is smaller than the distance c explained above between the two extensions 1.4 and 30 emerging from the cushion 16.
  • the second extension 30 is bent back again in a U-shape so that the one shown in FIGS 18 and 19 shown bent back piece 32 results.
  • This U-shaped piece 32 is the hanging part, into which the first extension 14 is hooked, as shown in FIGS. 17 to 21.
  • this U-shaped piece 32 is again transverse to the circumferential direction, i.e. thus pointing radially outward and bent parallel to the first extension 14 so that the end part 33 results.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
EP82100066A 1981-01-23 1982-01-07 Dispositif de fixation d'une bande flexible à une surface Expired EP0056934B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100066T ATE13326T1 (de) 1981-01-23 1982-01-07 Vorrichtung zur befestigung einer flexiblen bahn an einer wand.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3102201 1981-01-23
DE3102201 1981-01-23
DE3134973 1981-04-09
DE3134973A DE3134973C2 (de) 1981-01-23 1981-09-04 Vorrichtung zur Befestigung einer flexiblen Bahn an einer Wandung

Publications (3)

Publication Number Publication Date
EP0056934A2 true EP0056934A2 (fr) 1982-08-04
EP0056934A3 EP0056934A3 (en) 1983-06-15
EP0056934B1 EP0056934B1 (fr) 1985-05-15

Family

ID=25790752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100066A Expired EP0056934B1 (fr) 1981-01-23 1982-01-07 Dispositif de fixation d'une bande flexible à une surface

Country Status (4)

Country Link
US (1) US4502256A (fr)
EP (1) EP0056934B1 (fr)
JP (1) JPS57143050A (fr)
DE (2) DE3134973C2 (fr)

Cited By (4)

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US4916767A (en) * 1987-02-21 1990-04-17 Keisei Medical Industrial Company Limited Device for securing detachably filtering sheet to air bed
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CN106759965A (zh) * 2017-02-21 2017-05-31 潍坊市宏源防水材料有限公司 一种用于固定高分子防水材料的构件及使用方法

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CN106759965A (zh) * 2017-02-21 2017-05-31 潍坊市宏源防水材料有限公司 一种用于固定高分子防水材料的构件及使用方法

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DE3134973A1 (de) 1982-08-12
JPS57143050A (en) 1982-09-04
DE3263444D1 (en) 1985-06-20
DE3134973C2 (de) 1983-12-29
EP0056934A3 (en) 1983-06-15
EP0056934B1 (fr) 1985-05-15
US4502256A (en) 1985-03-05

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