EP3428358B1 - Dispositif de maintien de matériau isolant - Google Patents

Dispositif de maintien de matériau isolant Download PDF

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Publication number
EP3428358B1
EP3428358B1 EP18181066.4A EP18181066A EP3428358B1 EP 3428358 B1 EP3428358 B1 EP 3428358B1 EP 18181066 A EP18181066 A EP 18181066A EP 3428358 B1 EP3428358 B1 EP 3428358B1
Authority
EP
European Patent Office
Prior art keywords
insulation
spirals
insulation holder
protuberances
holder according
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
Application number
EP18181066.4A
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German (de)
English (en)
Other versions
EP3428358A1 (fr
Inventor
Jürgen Renz
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke GmbH and Co KG
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 Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Priority to PL18181066T priority Critical patent/PL3428358T3/pl
Publication of EP3428358A1 publication Critical patent/EP3428358A1/fr
Application granted granted Critical
Publication of EP3428358B1 publication Critical patent/EP3428358B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7629—Details of the mechanical connection of the insulation to the wall

Definitions

  • the invention relates to an insulation holder with the features of the preamble of claim 1.
  • insulation panels are used, which consist of a relatively soft insulation material that has an insulating effect.
  • a typical insulation material is expanded polystyrene, as it is used in so-called thermal insulation composite systems.
  • the insulation panels are usually attached to the anchoring base to be insulated, for example a concrete building wall, with the aid of insulation holders and fastening elements.
  • a screw, a nail and / or a dowel for example, can be used as the fastening element.
  • Anchoring grounds can, for example, be walls of buildings made of concrete, bricks or wooden panels.
  • the insulation material is removed locally in the area of the insulation holder to be installed by milling or displaced by cutting and upsetting, so that a cylindrical receiving space is created, at the bottom of which the insulation holder rests on the insulation board.
  • a suitable cylinder of the insulation a so-called "insulation washer”.
  • a generic insulation holder is from the European patent application EP 2 639 374 A2 known.
  • the insulation holder comprises a shaft with an insertion opening for a fastening element.
  • the fastening element is a long-shaft dowel with which the insulation holder is doweled to the anchoring base.
  • the insulation holder has an insulation plate with a circumferential cutting edge. With the cutting edge the insulation material moves with the rotation of the insulation material holder a turning tool about its longitudinal axis, for example by means of a cordless screwdriver, cut cylindrically so that the insulation holder can be set sunk.
  • a profile is provided on the contact surface of the insulation plate with which the insulation plate rests on the insulation material after it has been set, which locally grinds or mills the insulation material when the insulation holder is turned around the longitudinal axis.
  • the DE 20 2006 019 303 U1 discloses an insulation holder with the features of the preamble of claim 1.
  • the object of the invention is to propose an insulation holder with improved assembly properties.
  • the insulation holder according to the invention for fastening an insulation board to an anchoring base has a shaft with an insertion opening for receiving a fastening element with which the insulation holder can be fastened to the anchoring base.
  • the fastening element can in particular be a screw for fastening in an anchoring base made of wood or a long shaft or nail dowel for fastening in concrete or masonry, whereby other fastening elements can also be combined with the insulation holder according to the invention.
  • the insertion opening extends along a longitudinal axis of the insulation holder and is designed so that the fastening element can be at least partially inserted into the insertion opening.
  • the fastening element After insertion, the fastening element is axially firmly connected to the insulation holder so that the insulation holder can be braced against the insulation board to be fastened by means of the fastening element. After the fastening element has been inserted, the fastening element can furthermore be rotatable with respect to the longitudinal axis relative to the insulation holder. So that the insulation holder can activate a sufficiently large area for the dissipation of forces with the relatively soft insulation materials without the insulation holder being pulled through the insulation board, the insulation holder has a disk-shaped insulation plate, which is arranged in a collar-like manner around the shaft of the insulation holder radially to the longitudinal axis . The insulation plate does not have to completely encompass the shaft.
  • the insulation plate is designed in particular in the form of a circular ring-like disc surrounding the shaft.
  • “Disk” does not mean that the insulation plate has to be completely flat, but it can also be curved or also have openings or incisions, the insulation plate in particular is flat and / or in particular forms a surface that is closed in axial projection.
  • the diameter of the insulation plate is in particular several times, in particular more than 3 to 6 times larger than the diameter of the part of the fastening element that is used to fasten the fastening element in the anchoring base .
  • the insulation plate also has a contact surface for contact with the insulation board during assembly and in the assembled state.
  • the contact surface is arranged on the front side of the insulation plate in the insertion direction, that is to say on the side which is directed towards the insulation board for mounting the insulation holder.
  • the "direction of insertion” is the direction in which the insulation holder penetrates the insulation board when it is countersunk.
  • a profiling is arranged on the insulation plate, which protrudes axially from the contact surface in the direction of the longitudinal axis and in the insertion direction.
  • the profiling is designed in such a way that it is suitable for local removal of insulation material under the insulation plate by milling, loosening and / or grinding parts of the insulation board when sunk when turning the insulation plate around the longitudinal axis using a rotary tool.
  • the profiling is formed by local elevations.
  • the insulation holder can be rotated either directly by a rotary tool and / or indirectly via a rotary tool acting on the fastening means. If the insulation holder is rotated indirectly, the fastening means must be rotatably coupled to the insulation holder, for example via a form-fitting connection.
  • a form-fitting connection can be implemented, for example, by a screw with a hexagonal head which engages in a corresponding insertion opening. Alternatively, the fastening element can be held in a clamping manner in the insertion opening.
  • the distance between adjacent elevations is greater than the diameter of the adjacent elevations. If the adjacent elevations have different diameters, the smaller of the diameters is decisive. In order to achieve effective removal, this criterion must be met for at least one third, in particular at least two thirds and in particular at least 90% of the elevations that are arranged on the contact surface. In particular, the diameter of a protrusion is not smaller than 1 mm.
  • the inventive Design is based on the knowledge that the insulation material is only removed effectively when the distance between two elevations is sufficiently large so that the material removed can be moved under the insulation plate in order to at least partially grind and distribute it. By distributing and grinding the removed insulation material acts in the manner of a sliding or ball bearing between the contact surface and the insulation material, which greatly reduces the torque required for screwing in compared to an insulation disk lying flat against the insulation material.
  • the elevations are knob-like, so that the elevations remove the insulating material particularly efficiently and effectively with a low torque.
  • the knob-like elevations can in particular have the shape of a cylinder, a hemisphere or a truncated cone.
  • “knob-like” means a local elevation, the dimensions of which in the radial direction, in the circumferential direction and in the longitudinal direction are of the same order of magnitude.
  • the elevation does not have to be symmetrical, in particular not rotationally symmetrical, but can have any shape.
  • the elevations are not evenly distributed on the contact surface. This means that the number of elevations per unit area of the contact surface varies at least locally in the contact surface.
  • At least two adjacent elevations have different diameters, which enables particularly efficient removal of the insulation material and good distribution of the removed insulation material under the insulation plate.
  • the radial extent of the elevations increases in the direction from the shaft to the circumference of the insulation plate.
  • “Radial expansion” means the dimension of an elevation with which the elevation extends radially to the longitudinal axis of the insulation holder.
  • the distance between two adjacent elevations increases in the direction from the shaft to the circumference of the insulation plate.
  • this increase does not have to take place exclusively in the radial direction.
  • the distance between adjacent elevations in the direction from the shaft to the circumference of the insulating plate also increases when the elevations are arranged, for example, in the form of a spiral on the contact surface of the insulating plate.
  • the axial height of the elevations can also vary over the contact surface and / or increase or decrease in the radial direction. In particular, however, the height of the elevations above the contact surface is constant, so that the insulation material under the plate is removed evenly. In order to achieve good removal of the insulation material, the height of an elevation is in particular at least 1.0 mm, in particular at least 1.5 mm.
  • the elevations between the insertion opening and the circumference of the insulation plate are arranged in a spiral, that is, the elevations are arranged in such a way that several of the elevations together form parts of at least one spiral that runs between the insertion opening and the circumference of the insulation plate extends outward around the longitudinal axis.
  • a continuous spiral has to be visibly perceptible, but that the spirally arranged elevations lie together on a spiral connecting line, which is referred to below as a "spiral".
  • a spiral is formed by at least four elevations.
  • a plurality of spirals are preferably formed by the elevations, it being preferred that each of the elevations is part of at least two spirals.
  • the arrangement of the groups in the form of one or more spirals has been found to be particularly advantageous because, surprisingly, this configuration means that the removal takes place even at a low torque.
  • this is the case when a first number of spirals has a first direction of rotation and a second number of spirals has a second direction of rotation, the two directions of rotation, relative to the longitudinal axis of the insulation holder, being directed opposite one another, as in a preferred embodiment of the insulation holder according to the invention is the case.
  • the number of first spirals with the first direction of rotation preferably differs from the number of second spirals with the second direction of rotation.
  • the number of first spirals forms a certain ratio with the number of second spirals, which in a particularly preferred embodiment of the insulation age according to the invention corresponds to the ratio of two numbers in the Fibonacci sequence.
  • the ratio of two consecutive numbers of the Fibonacci sequence is formed, in particular the numbers 8 and 13 and / or the numbers 13 and 21. If more than two types of spirals are formed, the number of spirals corresponds in particular to a further type also a number in the Fibonacci sequence.
  • each of the elevations is part of at least two spirals, these two spirals having directions of rotation which are opposite to one another with respect to the longitudinal axis.
  • a cutting device for cutting into the insulating material is arranged on the circumference of the insulating material plate, protruding from the insulating material plate in the direction in which the insulating material holder is inserted into an insulating material.
  • the cutting device is formed by a circumferential wall-like and uninterrupted cutting edge.
  • the axial height of the cutting device is greater than the axial height of the elevations, in particular the cutting device is at least 1.25 times greater than the height of the highest elevation.
  • a cutting device designed in this way cuts the insulation material on the circumference of the insulation material plate, to be precise before the elevations that follow due to their lower height can mill off the insulation material. This creates a neatly cut cylinder wall into which, after the insulation holder has been sunk, an insulation washer can be precisely fitted.
  • an insulation holder 1 according to the invention is shown, with which an insulation board can be attached to an anchoring base (both not shown). All figures are drawn to scale.
  • the insulation holder 1 has a shaft 2 which extends along a longitudinal axis L of the insulation holder 1.
  • the shaft 2 comprises a frustoconical front part 3 which extends from a front end 4 of the insulation holder 1 in the insertion direction E of the insulation holder 1 into an insulation material to a rear, cylindrical part 5 of the shaft 2 (cf. Figure 2 ).
  • Both parts 3, 5 of the shaft 2 form a sleeve with an insertion opening 6, which also extends along the longitudinal axis L.
  • the insertion opening 6 serves to receive a fastening element (not shown) with which the insulation holder 1 can be fastened to an anchoring base, in the exemplary embodiment a wood screw with a countersunk head for screwing into a wooden structure on which an insulation board is to be fastened (not shown).
  • the insertion opening 6 is formed by a front and a rear cylinder section 7, 8 in the front part 3 and in the rear part 5 of the shaft 2, which differ in diameter, and are connected by a conical transition 9, which is at the front end of the rear Part 5 is formed.
  • a countersunk screw can be inserted into the insertion opening 6 in the insertion direction E until the screw head rests on the conical transition 9.
  • Axial ribs 10 and circumferential ribs 11 are arranged in the rear cylinder section 8.
  • the axial ribs 10 center and hold the screw head by clamping it in a rotationally fixed manner with the insulation holder 1, while the circumferential ribs 11 engage behind the screw head and hold it axially with the insulation holder 1 in a form-fitting manner.
  • the holding plate 13 also has depressions on its outer surface 14, into which a setting tool can engage in a form-fitting manner (not shown).
  • the rear end 12 of the insulation holder 1 is formed by the rear end of the shaft 2 and the rear end of a disk-shaped insulation plate 13, which is integrally connected to the shaft 2 and made of plastic together with the shaft 2 by injection molding.
  • the insulation plate 13 has the rear end of the The outer surface 14 forming the insulation material holder 1 and a flat, flat contact surface 15 which is at the front in the insertion direction E and which is directed towards the insulation board during assembly.
  • the insulation plate 13 has no openings in the plate level, but it is closed over a large area.
  • the insulation plate 13 On the outer circumference of the insulation plate 13 there is also a cutting device 16 protruding in the insertion direction E in the form of a wall-like cutting edge which, with the contact surface 15, forms a cylindrical receiving space for insulation material and whose axial height is 4.5 mm. So that the insulation holder 1 according to the invention can be set sunk in an insulation material, the cutting device 16 cuts the insulation material in a circular manner when the insulation material holder 1 is rotated, which creates a cleanly cut, cylindrical outer surface in the insulation material.
  • the elevations 17 not only mill the insulation material, but they grind or crush and distribute the insulation material under the insulation plate 13, so that the milled insulation material between the insulation plate 13 and the insulation board forms a friction-reducing intermediate layer, with individual particles of the milled insulation material being a kind of spherical or Form plain bearings.
  • the elevations 17 are arranged such that the distance a1 between a first elevation 17a and a second elevation 17b adjacent to this elevation 17a is greater than the diameter Da, Db of these elevations 17a, 17b (cf. Figure 3 ).
  • the two adjacent elevations 17a, 17b have different diameters Da, Db, the distance a1 being greater than the smaller diameter Da of these elevations 17a, 17b, which is 1.2 mm.
  • the elevations 17 all have the same axial height H of 1.5 mm (cf. Figure 2 ). According to the invention, the distance a between two adjacent elevations 17 increases in the direction from the shaft 2 to the circumference of the insulation plate 13. Likewise, the radial extension of the elevations 7 increases in the direction from the shaft 2 to the circumference of the insulation plate. So is in Figure 3 the distance a2 between a radially inner fourth elevation 17d to the first elevation 17a is smaller than the distance a1.
  • the elevations 17 are not uniform on the contact surface 15 of the insulating plate 13 distributed, but in such a way that several of the elevations 17 together form a spiral 18.
  • the first elevation 17a lies with a third elevation 17c on a first spiral 18a (cf. Figure 4a ), which extends outward around the longitudinal axis L between the insertion opening 6 and the circumference of the insulating plate 13.
  • the first elevation 17a lies on a second spiral 18b, on which the second elevation 17b and a fourth elevation 17d also lie (cf. Figure 4b ).
  • the second elevation 17b and the third elevation 17c together form a third spiral 18c (cf. Figure 4c ).
  • the elevations 17 thus form first and second spirals 18a, 18b which, with respect to the longitudinal axis L, have opposite directions of rotation D1, D2. This also applies to the first spirals 18a and the third spirals 18c.
  • the first spiral 18a has a first direction of rotation D1, which is opposite to the direction of rotation D2 of the second spiral 18b and the direction of rotation D3 of the third spiral 18c.
  • the plurality of elevations 17 each form a plurality of first, second and third spirals 18a, 18b, 18c.
  • the differently designed spirals 18 also differ in the number in which they are arranged on the insulation plate 13.
  • the elevations 17 form eight first spirals 18a, thirteen third spirals 18c and twenty-one second spirals 18b.
  • the numbers 8, 13 and 21 are consecutive numbers in the Fibonacci sequence.
  • the insulation holder 1 according to the invention is characterized by a low torque required for deep setting in an insulation, which is advantageous for a user in terms of handling.
  • As an injection-molded part it can be manufactured inexpensively in one piece, is robust and easy to use.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Connection Of Plates (AREA)
  • Insulating Bodies (AREA)

Claims (12)

  1. Support de matériau isolant (1) destiné à fixer un panneau de matériau isolant à une base d'ancrage et comprenant une tige (2), qui comporte une ouverture d'insertion (6) qui est destinée à recevoir un élément de fixation destiné à fixer le support de matériau isolant (1) à la base d'ancrage et qui s'étend le long d'un axe longitudinal (L) du support de matériau isolant (1), et un plateau de matériau isolant (13) en forme de disque qui comporte une surface d'appui (15) destinée à venir en appui sur le panneau de matériau isolant, un profilé qui fait saillie de la surface d'appui (15) axialement dans la direction de l'axe longitudinal (L) étant disposé sur le plateau de matériau isolant (13) et comportant une multitude d'élévations (17), et la distance (a) entre des élévations (17) adjacentes étant supérieure au diamètre (D) de ces élévations (17),
    caractérisé en ce que
    la distance (a) entre deux élévations (17) adjacentes augmente dans la direction allant de la tige (2) à la circonférence du plateau de matériau isolant (13).
  2. Support de matériau isolant selon la revendication 1, caractérisé en ce que les élévations (17) ne sont pas uniformément réparties sur la surface d'appui (15).
  3. Support de matériau isolant selon la revendication 1 ou 2, caractérisé en ce que au moins deux élévations (17) adjacentes ont des diamètres différents (D).
  4. Support de matériau isolant selon l'une des revendications 1 à 3, caractérisé en ce que l'étendue radiale des élévations (17) augmente dans la direction allant de la tige (2) vers la circonférence du panneau de matériau isolant (13).
  5. Support de matériau isolant selon l'une des revendications 1 à 4, caractérisé en ce que les élévations (17) entre l'ouverture d'insertion (6) et la circonférence du plateau de matériau isolant (13) sont disposées de telle sorte qu'une pluralité d'élévations (17) sont situées conjointement sur une ligne de liaison en spirale de manière à former conjointement des parties d'au moins une spirale (18) qui s'étend vers l'extérieur autour de l'axe longitudinal (L) entre l'ouverture d'insertion (6) et la circonférence du plateau de matériau isolant (13).
  6. Support de matériau isolant selon la revendication 5, caractérisé en ce qu'une pluralité de spirales (18) sont formées par les élévations (17).
  7. Support de matériau isolant selon la revendication 6, caractérisé en ce qu'un premier nombre de spirales (18a) présente un premier sens de rotation (D1) et un deuxième nombre de spirales (18b) présente un deuxième sens de rotation (D2), les deux sens de rotation (D1, D2) étant orientés à l'opposé l'un de l'autre par rapport à l'axe longitudinal (L).
  8. Support de matériau isolant selon la revendication 7, caractérisé en ce que le nombre de premières spirales (18a) ayant le premier sens de rotation (D1) diffère du nombre de deuxièmes spirales (18b) ayant le deuxième sens de rotation (D2).
  9. Support de matériau isolant selon la revendication 8, caractérisé en ce que le rapport du nombre de premières spirales (18a) ayant le premier sens de rotation (D1) et du nombre de deuxièmes spirales (18b) ayant le deuxième sens de rotation (D2) correspond au rapport de deux nombres de la suite de Fibonacci.
  10. Support de matériau isolant selon l'une des revendications 5 à 9, caractérisé en ce que chacune des élévations (17) fait partie d'au moins deux spirales (18) .
  11. Support de matériau isolant selon la revendication 10, caractérisé en ce que les deux spirales (18) ont des sens de rotation qui sont opposés l'un à l'autre par rapport à l'axe longitudinal (L).
  12. Support de matériau isolant selon l'une des revendications 1 à 11, caractérisé en ce qu'un dispositif de coupe (16), qui fait saillie dans un matériau isolant du plateau de matériau isolant (13) dans le sens d'insertion (E) du support de matériau isolant (1) est disposé sur la circonférence du plateau de matériau isolant (13) pour ménager une incision dans un matériau isolant.
EP18181066.4A 2017-07-12 2018-07-02 Dispositif de maintien de matériau isolant Active EP3428358B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18181066T PL3428358T3 (pl) 2017-07-12 2018-07-02 Uchwyt do materiału izolacyjnego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017115628.3A DE102017115628A1 (de) 2017-07-12 2017-07-12 Dämmstoffhalter

Publications (2)

Publication Number Publication Date
EP3428358A1 EP3428358A1 (fr) 2019-01-16
EP3428358B1 true EP3428358B1 (fr) 2020-11-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18181066.4A Active EP3428358B1 (fr) 2017-07-12 2018-07-02 Dispositif de maintien de matériau isolant

Country Status (3)

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EP (1) EP3428358B1 (fr)
DE (1) DE102017115628A1 (fr)
PL (1) PL3428358T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312532A1 (de) * 1993-04-16 1994-10-20 Sfs Ind Holding Ag Großflächige Unterlegscheibe
DE10159632B4 (de) * 2001-12-05 2006-11-16 Ejot Kunststofftechnik Gmbh & Co. Kg Dübel und Verfahren zur Montage von Dämmstoffplatten sowie eine Vorrichtung zum Eintreiben eines Spreizelements in einen Dübel
DE202006019303U1 (de) * 2006-12-23 2007-03-08 Harald Zahn Gmbh Befestigungselement zur mechanischen Verbindung von Dämmstoffen und Abdichtungsbahnen mit der tragenden Unterkonstruktion von Flachdächern
DE102010048537A1 (de) * 2010-10-14 2012-04-19 Sfs Intec Holding Ag Befestiger
EP2639374B1 (fr) 2012-03-16 2018-06-13 EJOT Baubefestigungen GmbH Fixation de plaques d'isolation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3428358T3 (pl) 2021-05-17
DE102017115628A1 (de) 2019-01-17
EP3428358A1 (fr) 2019-01-16

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