WO1989002504A1 - Dispositif de fixation sur un support ferme de lattes de toiture posees sur un materiau isolant souple - Google Patents

Dispositif de fixation sur un support ferme de lattes de toiture posees sur un materiau isolant souple Download PDF

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Publication number
WO1989002504A1
WO1989002504A1 PCT/EP1988/000748 EP8800748W WO8902504A1 WO 1989002504 A1 WO1989002504 A1 WO 1989002504A1 EP 8800748 W EP8800748 W EP 8800748W WO 8902504 A1 WO8902504 A1 WO 8902504A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
thread
washer
intermediate sleeve
section
Prior art date
Application number
PCT/EP1988/000748
Other languages
German (de)
English (en)
Inventor
Gerhard Bögel
Original Assignee
Sfs Stadler 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 Sfs Stadler Ag filed Critical Sfs Stadler Ag
Publication of WO1989002504A1 publication Critical patent/WO1989002504A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0275—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the screw-threaded element having at least two axially separated threaded portions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/3601—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer
    • E04D3/3603—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer the fastening means being screws or nails
    • 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

Definitions

  • Fastening arrangement for fastening roofing membranes on soft insulating material on a solid base
  • the invention relates to a fastening arrangement for fastening roofing sheets on soft insulating material to a solid base, consisting of a self-drilling and self-tapping screw and a large-area washer, the screw shank having two threaded sections separated by a thread-free section.
  • a stop is formed at a distance from the screw head in the thread-free shaft section of the screw or at the end of the thread-free shaft section, this stop inter alia. is formed by the end region of a threaded section near the screw head.
  • the washer is supported with its area delimiting the through-opening, whereby the washer can be tilted with respect to the screw axis without the screw head being pressed out of the position which is countersunk on the upper side of the washer.
  • the thread section provided here, facing the screw head therefore serves only as a stop for the washer attached.
  • a washer made of plastic for fastening insulating material to a metal roofing underlay is known (DE-05 31 06 844), in which the screw also has two threaded sections separated by a thread-free section. The one facing the screw head
  • Threaded section penetrates the wall of the through hole of the plastic washer and is intended to prevent the washer from stepping down when the roof surface is walked on.
  • the washer is practically firmly connected to the screw, so it cannot tilt sideways.
  • such an arrangement provides no security against unscrewing the screw from the fixed base, since simultaneously with the unscrewing of the threaded section facing the drill tip, the threaded section facing the screw head is unscrewed from the washer itself in the same way.
  • the present invention has therefore set itself the task of creating a fastening arrangement of the type mentioned, in which the possibility of tilting the washer to the side Screw axis is maintained and with which there is sufficient support of the washer and in which the automatic unscrewing of the screw from the fixed base is prevented or inhibited.
  • the two threaded sections on the screw shaft are designed in opposite directions and that the outer thread diameter of both threaded sections is larger than the through hole in the large-area washer or larger than the through hole of an intermediate sleeve inserted between the screw and the washer, and that the two of the screw head or thread sections facing the drill bit have approximately the same outer diameter.
  • This configuration ensures that unscrewing of the screw used is counteracted automatically, namely by counteracting the left-hand thread below the screw head in the area of the drill tip, which is usually designed as a right-hand thread. Whether this second thread area close to the screw head engages in the insulating material and / or the roofing membrane layers to be fastened or engages in the wall of the through hole of an intermediate sleeve or serves as a support for the tiltable holder of the washer, is an optimal unscrewing protection for the screw and thus given a long-term bracket.
  • the two opposing threaded sections have a thread of the same pitch.
  • the same outer diameter can be achieved for the two threaded sections when producing such a screw with the same roll diameter.
  • the tool production costs are low, since mirror-image rolling dies can be used for the two threaded sections.
  • transition between the screw head and the subsequent threaded section of the screw shaft is designed as a truncated cone with an angle of approximately 90 °. This results in an optimal contact surface on the assigned parts both in the case of direct assembly with a washer and when an intermediate sleeve is used, and this also results in substantial material savings in the area of the screw head.
  • a further advantageous embodiment is that the length of the threaded section adjoining the screw head approximately corresponds to the length of the through hole for the screw shaft in an intermediate sleeve inserted between the washer and the screw. As a result, the entire area of the threaded section will engage in the wall of the through hole in the intermediate sleeve and thus represent a corresponding positive and frictional connection.
  • the screw shaft is secured against twisting or at least inhibited against rotation relative to the intermediate sleeve and the intermediate sleeve relative to the washer and / or relative to the insulating material to be positively and / or frictionally locked.
  • an intermediate sleeve can be achieved by further increasing the friction between the intermediate sleeve and the washer, a further improvement in the screwing resistance.
  • the intermediate sleeve has a toothing or knurling running parallel to its axis or helically at its outer boundary.
  • FIG. 1 shows a device in its intended use for attaching roofing membranes to soft insulating material on a solid base
  • Fig. 2 a shows a device in its intended use for attaching roofing membranes to soft insulating material on a solid base
  • FIG. 4 shows a device consisting of screw, washer and intermediate sleeve, partially shown in section.
  • Figure 5 shows a device consisting of screw and washer, also partially shown in section.
  • Fig. 6 shows a screw according to the invention with an additional screw head-side threaded section in use with a shim disc and Fig. 7 such a screw in use with an intermediate sleeve.
  • the device consists of a screw 4, a large-area washer 5, an intermediate sleeve 6 being inserted between screw 4 and washer 5.
  • the screw 4 is shown in detail.
  • This is a self-drilling and self-tapping screw 4, in which the screw shank 7 has two threaded sections 9 and 10 separated by a thread-free section 8.
  • the two threaded sections 9 and 10 are designed in opposite directions, with the threaded section 9 near the drill tip 11 advantageously being designed as a right-hand thread and the threaded section 10, which adjoins the screw head 12, as a left-hand thread. If there is a special need or for certain applications, it would also be conceivable to design the threaded section 9 in the form of a left-hand thread and the threaded section 10 as a right-hand thread. Of course, the drilling tip 11 would then also have to be matched to this changed direction of rotation.
  • the two threaded sections 9 and 10 have the same outside diameter, which turns out to be an advantage from a manufacturing point of view, especially since a starting material of the same thickness can then be used over the entire screw shaft 7.
  • both threaded sections 9 and 10 is larger than the through hole 13 in the large-area washer 5 or larger than the through hole 14 of the intermediate sleeve 6 inserted between the screw 4 and the washer 5.
  • the screw itself supports the washer 5 against one Stepping down or a frictional engagement between the washer 5 and the screw 4 or between the screw 4 and the intermediate sleeve 6.
  • the threaded portion 10 engages in the wall of the through hole 14 in the intermediate sleeve 6 on.
  • both opposite thread sections 9 and 10 have the same pitch.
  • the transition between the screw head 12 and the subsequent threaded section 10 of the screw section 7 is designed as a conical section 15 with an angle of approximately 90 °. This results in an optimal contact surface on the assigned parts both in the case of direct mounting with a washer 5 and when an intermediate sleeve 6 is used, and in addition this results in a substantial saving in material in the area of the screw head, especially since only a wall thickness for the screw head which is dimensioned in accordance with the required force transmission 12 can be provided.
  • the drive 16 of the screw is advantageously designed in the form of an inner square.
  • a thread-free shaft section 8 is provided between the two threaded sections 9 and 10, especially since such screws 4 have a relatively large length depending on the thickness of the insulating material 2. It is therefore not necessary to apply a thread to the entire length of the screw and, moreover, a quicker and easier insertion of the screw through the through hole 14 in the intermediate sleeve 6 is possible, especially in the thread-free shaft section 8.
  • the opposing threaded section 10 engages in the insulating material 2 underneath, additionally supports this against compression, whereby this engagement of the opposing threaded section forms an additional torsional resistance for the screw 4.
  • an additional improvement in the screwing-out security of the screw can be achieved by additionally increasing the friction between the intermediate sleeve 6 and the washer 5.
  • the intermediate sleeve 6 has an axially parallel toothing or knurling on its outer boundary.
  • a further additional effect can be achieved if this toothing or knurling on the outer boundary of the Intermediate sleeve 6 helical lines is arranged.
  • the helical shape is expediently also the threaded section 9 of the
  • Screw 4 designed in opposite directions. 6 and 7 a special embodiment of a screw 4 according to the invention is shown.
  • a further threaded section 20 is provided here between the screw head 12 and the threaded section 10 near the screw head.
  • This further threaded section 20 is designed in the same direction as the threaded section 9 of the screw 4 near the drill bit, that is to say runs counter to the threaded section 10 near the screw head.
  • This additional threaded section 20 is relatively short, ie has a length of, for example, 2 to 3 thread turns.
  • the thread pitch can be the same as in the threaded section 9 or also differ from this.
  • a circumferential groove-like incision 21 is provided on the screw shaft between this further threaded section 20 and the screw head 12.
  • Such an embodiment is particularly suitable for direct use with washers 5.
  • the outer diameter of the further threaded section 20 is larger than the outer diameter of the threaded sections 9 and 10 and also larger than the through opening 13 in the washer 5.
  • this screw acts the opposite threaded section 10 as a support for the insulation and the roofing membranes, whereas the additional threaded section 20 is rotated through the washer 5 and there provides an effective support of the washer 5 in the event of a tread load.
  • This thread section 20, which is larger in diameter, thus forms a support for the washer 5.
  • a screw 4 designed in this way can easily be used even in an arrangement in which an additional intermediate sleeve 6 is provided.
  • This additional threaded section 20 is then supported on the bottom of the bore within this intermediate sleeve 6 and the threaded section 10 in the same way causes a retention in the bore 14 of the intermediate sleeve 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dowels (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

Un dispositif de fixation sur un support ferme de lattes de toiture posées sur un matériau isolant souple comprend une vis auto-foreuse et taraudeuse (4) et une rondelle (5) à grande surface. Un manchon intermédiaire (6) peut être monté entre la vis (4) et la rondelle (5). La vis (4) présente deux sections filetées (9 et 10) séparées par une section non-filetée (7), le filet de ces deux sections filetées (9, 10) s'étendant en sens opposés. Le diamètre exérieur des deux sections filetées (9, 10) est supérieur au diamètre intérieur de l'alésage débouchant (14) du manchon intermédiaire (6). Le filetage en sens opposés de la section filetée (10) et de la section filetée (9) empêchent la vis (4) de se dévisser.
PCT/EP1988/000748 1987-09-17 1988-08-22 Dispositif de fixation sur un support ferme de lattes de toiture posees sur un materiau isolant souple WO1989002504A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA2353/87 1987-09-17
AT235387A AT388409B (de) 1987-09-17 1987-09-17 Einrichtung zum befestigen von dachbahnen auf weichem isoliermaterial an einer festen unterlage

Publications (1)

Publication Number Publication Date
WO1989002504A1 true WO1989002504A1 (fr) 1989-03-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000748 WO1989002504A1 (fr) 1987-09-17 1988-08-22 Dispositif de fixation sur un support ferme de lattes de toiture posees sur un materiau isolant souple

Country Status (2)

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AT (1) AT388409B (fr)
WO (1) WO1989002504A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412382A1 (fr) * 1989-08-09 1991-02-13 Hardo- Befestigungen Gmbh Dispositif de fixation d'une feuille d'étanchéité de toiture à une sous-structure de toit
FR2671120A1 (fr) * 1990-12-27 1992-07-03 Etanco Lr Plaquette de repartition d'efforts a cuvette filetee.
EP0860614A3 (fr) * 1997-02-19 1999-05-06 Arnold Umformtechnik GmbH & Co. KG Vis et son utilisation
WO1999031395A1 (fr) * 1997-12-16 1999-06-24 Sfs Industrie Holding Ag Vis pour fixation avec ecartement de plaques de recouvrement ou de rails sur une infrastructure
WO2000020703A1 (fr) * 1998-10-07 2000-04-13 Sfs Industrie Holding Ag Element de fixation et procede pour fixer des bandes ou des plaques isolantes sur une base fixe
EP2930378A1 (fr) * 2014-04-11 2015-10-14 EJOT Baubefestigungen GmbH Élément espaceurs de fixation
EP3450647A1 (fr) * 2017-09-01 2019-03-06 SFS Intec Holding AG Dispositif de fixation pour matériau d'isolation
EP3462044A1 (fr) * 2017-09-27 2019-04-03 Van Roij Fasteners Europe B.V. Élément de fixation
EP3626983A1 (fr) * 2018-09-19 2020-03-25 Van Roij Fasteners Europe B.V. Élément de fixation et procédé de fixation d'un matériau isolant
WO2021244787A1 (fr) * 2020-06-05 2021-12-09 Ejot Baubefestigungen Gmbh Vis isolante inclinée ayant une pointe de foret à filetage droit et à filetage gauche pour la fixation réglable d'une bande de couverture de toit sur une tôle d'acier
CN113931321A (zh) * 2021-11-30 2022-01-14 重庆建工第三建设有限责任公司 防水卷材固定件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9011344U1 (de) * 1990-08-02 1990-10-31 Emhart Inc., Newark, Del. Befestigungsvorrichtung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124031A (en) * 1964-03-10 Screw fastener
DE1292356B (de) * 1962-03-28 1969-04-10 Knipping Gmbh A Verbindung einer profilierten, vorzugsweise gewellten Blechtafel mit einem Profiltraeger
EP0129404A1 (fr) * 1983-06-15 1984-12-27 ITW Limited Moyens d'assemblage comprenant des vis et des plaques de serrage
GB2142108A (en) * 1983-06-22 1985-01-09 Sfs Stadler Ag Fastener for securing roofing sheeting over soft insulating material to a fixed support
AT380732B (de) * 1984-12-21 1986-06-25 Sfs Stadler Ag Schraube zur befestigung von aus profilierten platten und darunter angeordneter isolierschicht bestehenden dach- oder wandverkleidungselementen an einem festen unterbau
US4653244A (en) * 1986-01-16 1987-03-31 Farrell Mark A Fastener element
DE3539752A1 (de) * 1985-11-09 1987-05-14 Niederberg Chemie Dachbefestigung
WO1988005487A1 (fr) * 1987-01-21 1988-07-28 Sfs Stadler Ag Element de fixation a rondelle a grande surface

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361997A (en) * 1980-02-25 1982-12-07 Textron Inc. Fastener plate and assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124031A (en) * 1964-03-10 Screw fastener
DE1292356B (de) * 1962-03-28 1969-04-10 Knipping Gmbh A Verbindung einer profilierten, vorzugsweise gewellten Blechtafel mit einem Profiltraeger
EP0129404A1 (fr) * 1983-06-15 1984-12-27 ITW Limited Moyens d'assemblage comprenant des vis et des plaques de serrage
GB2142108A (en) * 1983-06-22 1985-01-09 Sfs Stadler Ag Fastener for securing roofing sheeting over soft insulating material to a fixed support
AT380732B (de) * 1984-12-21 1986-06-25 Sfs Stadler Ag Schraube zur befestigung von aus profilierten platten und darunter angeordneter isolierschicht bestehenden dach- oder wandverkleidungselementen an einem festen unterbau
DE3539752A1 (de) * 1985-11-09 1987-05-14 Niederberg Chemie Dachbefestigung
US4653244A (en) * 1986-01-16 1987-03-31 Farrell Mark A Fastener element
WO1988005487A1 (fr) * 1987-01-21 1988-07-28 Sfs Stadler Ag Element de fixation a rondelle a grande surface

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412382A1 (fr) * 1989-08-09 1991-02-13 Hardo- Befestigungen Gmbh Dispositif de fixation d'une feuille d'étanchéité de toiture à une sous-structure de toit
FR2671120A1 (fr) * 1990-12-27 1992-07-03 Etanco Lr Plaquette de repartition d'efforts a cuvette filetee.
EP0860614A3 (fr) * 1997-02-19 1999-05-06 Arnold Umformtechnik GmbH & Co. KG Vis et son utilisation
WO1999031395A1 (fr) * 1997-12-16 1999-06-24 Sfs Industrie Holding Ag Vis pour fixation avec ecartement de plaques de recouvrement ou de rails sur une infrastructure
WO2000020703A1 (fr) * 1998-10-07 2000-04-13 Sfs Industrie Holding Ag Element de fixation et procede pour fixer des bandes ou des plaques isolantes sur une base fixe
US6558098B1 (en) 1998-10-07 2003-05-06 Sfs Industrie Holding Ag Fixing element and method for fixing insulation tracks or plates on a fixed substructure
CZ297952B6 (cs) * 1998-10-07 2007-05-09 Sfs Industrie Holding Ag Pripevnovací prvek a zpusob pripevnování izolacních pásu nebo desek na pevné podkladové konstrukci
EP2930378B1 (fr) 2014-04-11 2018-12-26 EJOT Baubefestigungen GmbH Élément espaceurs de fixation
EP2930378A1 (fr) * 2014-04-11 2015-10-14 EJOT Baubefestigungen GmbH Élément espaceurs de fixation
EP2930378B2 (fr) † 2014-04-11 2022-01-26 EJOT Baubefestigungen GmbH Élément espaceurs de fixation
EP3450647A1 (fr) * 2017-09-01 2019-03-06 SFS Intec Holding AG Dispositif de fixation pour matériau d'isolation
WO2019042963A1 (fr) * 2017-09-01 2019-03-07 Sfs Intec Holding Ag Fixation, agencement de fixation et procédé d'assemblage
US11549542B2 (en) 2017-09-01 2023-01-10 Sfs Intec Holding Ag Fastener, fastening arrangement and method for mounting
EP3462044A1 (fr) * 2017-09-27 2019-04-03 Van Roij Fasteners Europe B.V. Élément de fixation
EP3626983A1 (fr) * 2018-09-19 2020-03-25 Van Roij Fasteners Europe B.V. Élément de fixation et procédé de fixation d'un matériau isolant
WO2021244787A1 (fr) * 2020-06-05 2021-12-09 Ejot Baubefestigungen Gmbh Vis isolante inclinée ayant une pointe de foret à filetage droit et à filetage gauche pour la fixation réglable d'une bande de couverture de toit sur une tôle d'acier
CN113931321A (zh) * 2021-11-30 2022-01-14 重庆建工第三建设有限责任公司 防水卷材固定件

Also Published As

Publication number Publication date
ATA235387A (de) 1988-11-15
AT388409B (de) 1989-06-26

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