WO2023020854A1 - Système et procédé de fixation pour la retenue en encastrement d'éléments d'isolation - Google Patents

Système et procédé de fixation pour la retenue en encastrement d'éléments d'isolation Download PDF

Info

Publication number
WO2023020854A1
WO2023020854A1 PCT/EP2022/071977 EP2022071977W WO2023020854A1 WO 2023020854 A1 WO2023020854 A1 WO 2023020854A1 EP 2022071977 W EP2022071977 W EP 2022071977W WO 2023020854 A1 WO2023020854 A1 WO 2023020854A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening
holding
area
fastening system
substrate
Prior art date
Application number
PCT/EP2022/071977
Other languages
German (de)
English (en)
Inventor
Ulrich Knebel
Erhard Hackler
Wolfgang Schäfer
Original Assignee
Ejot Se & 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 Ejot Se & Co. Kg filed Critical Ejot Se & Co. Kg
Publication of WO2023020854A1 publication Critical patent/WO2023020854A1/fr

Links

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
    • E04B1/7633—Dowels with enlarged insulation retaining head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/109—Counterboring tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0064—Means for adjusting screwing depth
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/001—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with means for preventing rotation of the dowel
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/045—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front having axially compressing parts allowing the clamping of an object tightly to the wall
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F16B13/124—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting a threaded element, e.g. screw or bolt
    • 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

Definitions

  • the present application relates to a fastening system for holding an insulating material element in a recessed manner on a substrate and a corresponding method.
  • insulating elements are attached to a substrate, such as walls, ceilings and floors.
  • a depression is formed in the insulation element, in which a holding element is arranged.
  • the depression with the holding element arranged therein is then filled with an insulating material.
  • the arrangement of the holding element in the depression in particular prevents the holding points of the insulation element from being visible on the surface.
  • the object is achieved by a fastening system for holding an insulating element in a recessed manner on a substrate.
  • the fastening system has a fastening element and a holding element.
  • the fastening element is an element with which the holding element can be fastened to a substrate under the insulating element.
  • a such fastener is a screw or nail.
  • the fastening element can be connected directly or indirectly to the substrate.
  • An example of a direct connection is placing a wood screw in a wooden base.
  • An example of an indirect connection is arranging the fastening element in an expansion element, for example a dowel in the ground.
  • the fastening element can be divided into at least two areas.
  • a first area which is closer to or even below the ground during assembly, is referred to as the attachment area.
  • This fastening area is designed to hold the fastening element directly or indirectly on or in the substrate.
  • a second area on which the holding element is held is referred to as the holding area.
  • This holding area has an external thread. The external thread is preferably spaced from the attachment area.
  • the holding element is an element with which the insulating material of the insulating element is held on the fastening element and thus also on the substrate.
  • the holding element has a holding shaft, a holding plate and a tool holder.
  • the holding shaft, the holding plate and the tool holder are arranged on one another in a rotationally fixed manner. This means that when one of these components of the holding element is rotated, the other components rotate accordingly.
  • the holding element has been manufactured in one piece with its components. In principle, however, it is also possible for the holding element or one of its components to be manufactured separately and then to be connected to the other components in a torque-proof manner.
  • the holding shaft is a section of the holding element which extends essentially in the direction of the longitudinal extent of the fastening element when the fastening element is arranged in the holding element as intended. In connection with the present invention, this direction is also referred to as the axial direction.
  • an anti-rotation means is arranged on the inside of the holding shaft in a rotationally fixed manner, which can be brought into operative connection with the external thread of the fastening element.
  • Such an operative connection is present, for example, when a rotation of the holding element or the fastening element relative to the other element, an axial movement of one of the elements relative to the other of the elements causes. If, for example, the holding element is rotated and the fastening element does not rotate with it, the holding element moves in the axial direction relative to the fastening element, depending on the direction of rotation either towards the ground or away from the ground.
  • the holding element also has a holding plate.
  • the retaining plate consists of one or more projections, which are referred to below as retaining projections, and which extend in the radial direction from the retaining shaft. These holding projections are designed to hold the insulation element.
  • the one or more retaining projections extend substantially in a plane extending substantially perpendicular to the longitudinal axis of the retaining shaft, i.e. the axial direction.
  • the one or more retaining projections in most cases lie on the bottom of the recess formed in the insulating material element and thus prevent the insulating material element from moving in a direction away from the substrate.
  • the retaining plate is a retaining projection that extends concentrically around the retaining shaft.
  • At least one cutting means is arranged in a rotationally fixed manner on the holding plate.
  • This at least one cutting means is an essential means to form the recess in the insulating element.
  • a recessed hold differs, for example, from a so-called surface-flush hold.
  • a holding means for example a holding plate, is arranged on the surface of the insulating material, while in the case of holding recessed, the holding is carried out below the surface—that is to say in a recessed manner.
  • the holding element requires means so that it can be arranged in a recessed manner in the insulating material. In the context of the present invention, this is the at least one cutting means.
  • the term cutting and the associated cutting means is used as a generic term for various possible separation processes, such as cutting, milling, planing, breaking, etc..
  • the cutting means part of the insulating material, preferably the insulating material arranged under the holding plate from the other insulating material to a certain one depth separately.
  • the cutting edge in the insulation element is designed differently.
  • the formation of the depression can be supported by other means.
  • the holding plate can compress the insulating material under the holding plate.
  • the holding plate mills away the insulating material under the holding plate.
  • the support plate is circular and the cutting means is arranged substantially at the periphery of the circular support plate.
  • the cutting means can be implemented using a wide variety of means.
  • the cutting means can be realized by a projection arranged on the underside of the holding plate, which in some embodiments has a cutting edge, for example in the form of a sawtooth.
  • the cutting means can also be an integral part of the holding plate, which cannot be distinguished from the rest of the holding plate.
  • the at least one cutting means can be defined by the design of the edge of the holding plate and/or by the rigidity of the holding plate, in particular in the edge area.
  • the holding element according to the present invention also has a tool holder.
  • the tool holder of the holding element is designed and intended to rotate the holding element with the aid of a corresponding tool.
  • the aim is to rotate the holding element relative to the fastening element, so that the holding element moves in the direction of the substrate, supported by the external thread of the fastening element.
  • the tool holder can, for example, be connected to the corresponding tool by means of a form fit.
  • the holding plate can have, for example, corresponding recesses or projections, but also, for example, a combination of projections and recesses.
  • the process of forming the indentation by the fastening system according to the present invention differs from the known processes.
  • the holding element and the fastening element have been designed in such a way that the holding element also moves in the direction of the ground as a result of a movement of the fastening element into the ground, thereby forming the depression.
  • the fastening element does not move any further into the ground when the holding element moves in the direction of the ground and the recess is formed in the insulating element.
  • this has the advantage that the formation of the depression no longer affects the fastening of the fastening element to the substrate. In this way, the attachment to the substrate can be ensured in a first step and the depression can then be formed in a subsequent step.
  • the fastening element is a screw and, more preferably, the fastening element has a corresponding external thread at least in the fastening area.
  • the fastening system has another tool holder.
  • the fastening element can also have a tool holder.
  • the tool holder of the fastener is referred to as the drive holder for better differentiation.
  • the drive mount is used to fasten the fastening element to the substrate as part of the installation of the fastening system. If the fastening system is a screw, for example, the screw can be screwed into the substrate using the drive mount.
  • the fastening element consists of plastic.
  • Fastening elements made of plastic in particular screws made of plastic, are already known in the prior art.
  • all-plastic screws have proven to be particularly prone to failure in connection with recessed assembly.
  • the plastic screw is screwed further into the substrate while the depression is being formed, this can lead to the screw breaking. Due to the new assembly concept of the present invention, however, this problem no longer exists, so that all-plastic screws can also be used.
  • the fastening system also has a spreading area which is designed to be spread open by the fastening area of the fastening element.
  • the expansion area is designed in order to attach the attachment area of the attachment element to the substrate.
  • the fastening element can be anchored in a drilled hole in a substrate.
  • the expansion area can then act like a dowel.
  • the fastening system is designed in such a way that the holding element can be displaced relative to the expansion area as part of the setting of the fastening system.
  • This displacement is preferably realized in that a tool engages in the tool holder of the holding element and rotates it. Due to the interaction between the external thread of the fastening element and the antidote of the holding element, the rear area of the holding element moves in the direction of the ground. This is a movement in the axial direction, since the retaining element, guided by the thread, moves in the direction of the substrate or away from the substrate, depending on the direction of rotation, along the longitudinal axis of the fastening element.
  • the expansion area should then not move, but rather continue to be arranged in the substrate together with the attachment area of the attachment means.
  • the retaining element and the expansion area must consist of two separate parts, or the two must be detachably attached to one another.
  • the at least one antidote can be formed by different means.
  • the antidote can be an internal thread, for example, which corresponds to the external thread of the fastening element.
  • the internal thread is only formed when the fastening element is screwed into the holding shaft.
  • the holding shaft can have one or more projections on its inside.
  • the at least one projection extends essentially in the axial direction in the shaft. When screwing in the external thread of the holding element, this can then form recesses and/or projections in the at least one projection, which act like a corresponding internal thread.
  • the external thread can be designed in such a way that it has different threads in different areas.
  • the external thread can have a thread at the end that is arranged closer to the fastening area, which thread is designed to form the recesses and/or projections in the at least one antidote when screwed in.
  • the external thread may first have a pre-tapping thread portion at the end located closest to the attachment portion. This pre-tapping thread can have an outer diameter which essentially increases along the extension of the pre-tapping thread.
  • the pre-cutting thread is designed to allow easy inching or pre-cutting.
  • a thread-forming area with a larger outer thread diameter can be arranged. This is preferably the largest external thread diameter of the external thread.
  • This thread-forming area can have milling ribs on the thread flanks for further cutting of the thread in the antidote.
  • An area with a fastening thread can then be arranged behind it, which preferably has an average thread diameter.
  • the external thread can have a recess or a plurality of recesses in the thread, which simplify the removal of material when forming the antidote. This one or more recesses can also be referred to as a clearing edge.
  • the one or more recesses are preferably arranged in the area with the pre-tapping thread, in the thread forming area or in both areas.
  • the object is also achieved by a method for holding an insulating material element in a recessed manner on a substrate with the aid of a fastening system.
  • the fastening system has a fastening element and a holding element. First, a hole is drilled into the insulation element and, if necessary, into the underlying substructure. The fastening system is then introduced into the hole and a fastening area of the fastening element is fastened to the substrate. Thereafter, the holding element is rotated relative to the fastening element and a depression is thereby formed in the insulating material, namely with the aid of at least one cutting means on the circumference of a holding plate of the holding element.
  • a tool designed for this purpose can also be used when setting a fastening system for holding an insulating material element in a recessed manner on a substrate.
  • the tool has several components. This includes a fastening component that is designed to be connected to a drive receptacle of a fastening element of the fastening system.
  • the tool also includes a retention member configured to connect to a tool receptacle of a retention member of the fastening system.
  • the tool also has a drive component that is designed to be connected to a drive.
  • the tool is also designed to transmit a rotational movement of the drive to the fastening component and as soon as the fastening component has reached a certain position relative to the surface of the insulating element, the transmission of the rotational movement to the fastening component is terminated and the rotational movement of the drive is transmitted to the holding component instead .
  • Figure 1 shows a sectional view of an embodiment of the
  • Figure 2 shows a sectional view of an embodiment of the
  • Figures 3a, 3b show a sectional view and a top view of an embodiment of a fastening element
  • FIGS. 4a, 4b show sectional views of embodiments of the holding element
  • FIGS 5a to 5c show the sequence of assembly of an embodiment of the fastening system according to the present invention in several steps
  • Figures 6a, 6b show a side view and a perspective view of an embodiment of the tool
  • Figures 7a, 7b show examples of the design of the tool holder of the holding element
  • Figures 8a, 8b show a sectional view and a perspective view of an external thread, as it can be used within the scope of the present invention.
  • Figure 1 shows a sectional view of an embodiment of the fastening system 1 according to the present invention.
  • the fastening system is already in a hole in an insulating element 2 and in the substrate 3 arranged underneath.
  • FIG. 2 shows a sectional view of an embodiment of the fastening system 1 without an insulating element 2 and without a substrate 3 .
  • the fastening system 1 has a fastening element 4 and a holding element 5 .
  • the fastener 4 is a screw.
  • the fastening element 4 has a front area and a rear area, with the front area being arranged on or in the subsurface in the installed state and the rear area being arranged above or in front of the subsurface.
  • the front area of the fastening element 4 has a fastening area 41 and the fastening element 4 has an external thread 42 in the rear area.
  • the fastening element 4 also has a drive receptacle 43 .
  • the drive receptacle 43 is designed to be connected to a correspondingly designed drive. As explained above, this mount is referred to as a drive mount and not a tool mount IO to be able to conceptually distinguish them from a tool holder 53 of the holding element 5 .
  • the holding element 5 shown in FIG. 2 has a holding shaft 51, a holding plate 52 and the tool holder 53 already mentioned. At least one counter-means 55 is arranged on the inside of the holding shaft 51, which cannot be seen in FIG. 2 and is therefore described in more detail later in connection with FIGS. 4a and 4b.
  • a spreading area 6 is arranged on the holding element 5 in this embodiment.
  • This expansion area 6 is designed to attach the attachment element 4 in a hole in the substrate 3 together with the attachment area 41 of the attachment element 4 .
  • the expansion area 6 acts like a dowel.
  • the expansion area 6 is connected to the holding shaft 51 .
  • this is a detachable connection because the holding shaft 51 and the holding plate 52 of the holding element 5 move relative to the fastening element 4 and thus also to the expansion region 6 arranged on the fastening region 41 of the fastening element 4 when used as intended.
  • FIG. 3a shows a sectional view through a fastening element 4 and FIG. 3b shows a plan view of a fastening element 4.
  • the fastening element 4 is a screw.
  • the fastening element 4 has a fastening area 41 which, in this exemplary embodiment, is designed as a screw thread.
  • the attachment area is adjoined by an unthreaded area.
  • a rear area with an external thread 42 adjoins the threadless area.
  • the fastening area 41 and the adjoining thread-free area have essentially the same outside diameter, while the outside thread 42 has a larger outside diameter in comparison.
  • the point at which the outer diameter changes can be designed as a stop which, when used as intended, can rest against a stop surface of the holding element 5 in order to prevent the Fastening element 4 is moved further into the holding element 5.
  • the sectional view in FIG. 3a also shows a drive receptacle 43 of the fastening element 4, which is designed to be connected to a correspondingly designed drive.
  • FIG. 4a shows a sectional view through an embodiment of the holding element 5 without the fastening element 4 arranged therein.
  • the holding element 5 has a holding shaft 51 and a holding plate 52.
  • the tool holder 53 is formed in the holding plate 52 .
  • Two antidotes 55 are visible on the inside of the holding shaft 51 in the view of FIG. 4a.
  • the counter-means 55 are each formed by a projection extending axially on the inner wall of the holding shaft 51 .
  • the axial direction is the direction of the longitudinal extension of the fastening element 4.
  • the projection extends over the entire height of the holding shaft 51. This is not necessary, ie the projection can also be shorter.
  • the projection is preferably designed in such a way that the projection and the external thread 42 cannot lose contact when the fastening system 1 is used as intended, ie the retaining element 5 is held by the external thread 42 of the fastening element 4 .
  • the antidote 55 can also be implemented by other configurations.
  • An alternative antidote is, for example, an internal thread corresponding to the external thread 43 .
  • other projections and recesses can also be designed and arranged in such a way that they can take over the function of the counter-means 55 .
  • the holding plate 52 shown in FIG. 4a also has a cutting means 54.
  • the cutting means 54 is designed in such a way that it cannot be structurally distinguished from the rest of the holding plate 52 . Only when holding element 5 is used does it become apparent that this edge of holding plate 52 acts like a cutting means, since it separates the insulating material of insulating material element 2 arranged under holding plate 52, i.e. the insulating material arranged directly below the holding plate from the insulating material arranged in the radial direction outside of the Insulating material located on the holding plate is separated.
  • an expansion area 6 is arranged on the holding element 5.
  • the holding element 5 and the expansion area 6 are two separate components which are arranged in a form-fitting manner on one another such that they can move relative to one another in an axial direction.
  • holding element 5 and expansion area 6 are also known to those skilled in the art.
  • both can be connected to one another by a predetermined breaking point.
  • a further component can be arranged between the expansion area 6 and the holding element 5 .
  • FIG. 4b shows an alternative embodiment of the antidote 55.
  • the holding element 5 has three or four of these axially extending projections as counter-means 55 .
  • FIGS. 5a to 5c show the assembly sequence of an embodiment of the fastening system 1 according to the present invention in several steps.
  • FIG. 5a shows the arrangement of an embodiment of the fastening system 1 according to the present invention in an insulating element 2 and a substrate 3.
  • a hole was previously drilled in the insulating element 2 and in the substrate 3 arranged underneath.
  • the fastening element 4 can first be arranged in the holding element 5 and then the fastening system 1 with the fastening element 4, the holding element 5 and the expansion area 6 can be inserted into the hole.
  • the fastening system 1 can also be inserted step by step into the hole by first only arranging the holding element 5, optionally with the expansion area 6, in the hole and then the fastening element 4 in the holding element 5 and the expansion area 6.
  • the fastening system i is preferably designed to be used with an insulating element 2 with a certain thickness. This ensures that the fastening system i is firmly connected to the substrate 3 when the holding plate 52 rests on the surface.
  • the fastening system 1 is designed in such a way that the expansion area 6 of the fastening system 1 is located in the hole in the substrate 3 when the holding plate 52 rests on the insulating material.
  • the fastening system 1 is fastened to or in the substrate 3 .
  • this is achieved in that the fastening area 41 of the fastening element 4 is moved into the expansion area 6.
  • the expansion area 6 and also the attachment area 41 of the attachment element 4 are anchored in the hole in the substrate 3 .
  • the present invention also includes other options for fastening at least the fastening element 4 to or in the substrate 3 .
  • the fastening element 4 is rotated and thus moves in the holding element 5 in the direction of the base 3.
  • the fastening area 41 is screwed into the expansion area 6 in the hole in the base 3.
  • the fastening element 4 is moved axially in the direction of the substrate 3 relative to the holding element 5 .
  • This is important in this embodiment because this relative movement moves the external thread 42 so far into the holding shaft 51 that the holding element 5 can then be moved into the insulation material relative to the fastening element 4 .
  • this is not absolutely necessary.
  • this rotational movement also causes the external threads 42 to move relative to the retaining shank 51.
  • the retaining shank 51 is retained in the hole in the insulation element 2 and does not rotate when the fastener 4 in the retaining element 5 is rotated. This can be due to the friction between the outside of the holding shaft 51 and the insulating element 2 .
  • the cause of this can also be, for example, projections on the outside of the holding shaft 51 or other effects.
  • the external thread 42 of the fastening element 4 then moves relative to the counter-means 55 of the holding element 5.
  • the counter-means 55 is formed by projections which extend in the holding shaft 51 in the axial direction. Due to the relative movement between the external thread 42 and counter-means 55, the external thread 42 forms recesses in the projections of the counter-means 55, so that the counter-means 55 acts like a complementary internal thread.
  • FIG. 5b shows the fastening system 1 after the fastening area 41 has been fastened in the substrate 3.
  • FIG. The anchoring of the fastening element 4 on or in the substrate 3 is now complete.
  • the external thread 42 is in a position in the holding shaft 51 which allows a relative movement of the holding shaft 51 in the direction of the substrate 3 relative to the external thread 42 .
  • the holding plate 52 is still on the surface of the insulating element 2.
  • Now the depression in the insulating element 2 is formed.
  • the fastening element 4 is not simply moved further into the substrate 3 as in the prior art. This can affect the reliability of the anchoring of the fastening element 4 in the substrate 3 .
  • the fastening element 4 can be damaged, particularly if it is made of plastic.
  • the holding element 5 is now rotated relative to the fastening element 4 .
  • the holding element 5 has a tool holder 53 which is formed in the holding plate 52 in the present embodiment.
  • a tool that rotates the holding element 5 can engage in this tool holder 53 . Since the fastening element 4 is firmly attached to or in is fastened to the substrate 3, the rotation of the holding element 5 is often not suitable for also rotating the fastening element 4, so that the desired rotation of the holding element 5 relative to the fastening element 4 takes place. Alternatively, the tool can also engage in the drive receptacle 43 of the fastening element 4 and hold it while the holding element 5 is rotated.
  • the fastening system 1 has a retaining element 5 and an expansion area 6.
  • the expansion area 6 and the holding element 5 are preferably two separate parts or can be easily separated from one another, for example with the aid of a predetermined breaking point. This is important because when the holding element 5 , in particular the holding shaft 51 and the holding plate 52 , the expansion area 6 should not rotate as well, in order not to influence the fastening of the fastening element 4 to the substrate 3 .
  • the rotating holding element 5 moves on a helical line, like a cylindrical spiral in the direction of the substrate 3.
  • the holding plate 52 in particular rotates and it presses on the surface of the insulating element 2.
  • the at least one cutting means 54 arranged non-rotatably on the holding plate 52 thereby cuts into the insulating material element 2 on the circumference of the holding plate 52 .
  • the holding plate 52 compresses the area of the insulating element 2 located beneath it. The depression in the insulating element 2 is formed by this interaction of cutting and compressing.
  • the component cutting in the cutting means 54 is used as a generic term for a large number of cutting processes, such as cutting, milling, planing, breaking, etc..
  • the insulating material is cut under the holding plate 52 separated from the rest of the insulating material of the insulating element 2.
  • the holding element 5 can be turned, for example, until the rear end of the fastening element 4 is flush with the surface of the holding plate 52 .
  • the fitter can also be informed in other ways if one is sufficient deep depression was formed.
  • the tool can have a depth stop, for example. It is often important that the indentation is of a suitable size for a prefabricated roundel made of insulating material. In the position of the fastening system 1 shown in FIG. 5c, the retaining element 5 has formed the depression and the depression has already been closed again with a suitable round washer.
  • FIGS. 6a and 6b show two views of an embodiment of a tool 100 for setting a fastening system 1 for holding an insulating material element 2 in a recessed manner.
  • the tool 100 has a number of components. This includes a fastening component 110, which is designed to be connected to a drive receptacle 43 of a fastening element 4 of the fastening system 1.
  • the tool 100 also has a holding component 120, which is designed to be connected to a tool receptacle 53 of a holding element 5 of the fastening system 1.
  • the tool 100 also includes a drive member 130 configured for connection to a drive.
  • the tool 100 also has a depth stop 140 .
  • Tool 100 is also configured to transmit a rotational movement of the drive to fastening component 110, and as soon as fastening component 110 has reached a specific position relative to the surface of insulating element 2, the transmission of the rotational movement to fastening component 110 is terminated and the rotational movement of the Transfer drive to the holding member 120.
  • Figures 7a and 7b show external views of two embodiments of the holding element 5, as can be used within the scope of the present invention.
  • the figures illustrate two alternatives for the design of the tool holder 53.
  • the holding element 5 has a tool holder 53a on the holding plate 52, which is formed by projections—three projections in this embodiment.
  • a corresponding tool 100 then has components that are designed to contact the projections of the tool holder in such a way that a rotational movement can be transmitted.
  • the tool holder 53b has recesses, with the aid of which corresponding components of a tool 100 can transmit a rotational movement.
  • Figures 8a and 8b show a sectional view and a perspective view of an external thread 42 as can be used within the scope of the present invention.
  • the external thread 42 is configured to form recesses and/or protrusions in the at least one antidote. According to the embodiment shown in FIGS. 8a and 8b, the external thread 42 has different areas for this.
  • the external thread 42 can first have an area 200 with a pre-tapping thread.
  • the thread in this area 200 with the pre-tapping thread has an outer diameter which essentially becomes larger and larger along the extension of the pre-tapping thread. This can be seen in particular from the perspective view in FIG. 8b.
  • the pre-cutting thread is designed to allow easy inching or pre-cutting.
  • a thread-forming area 210 with a larger outer thread diameter is arranged.
  • the largest external thread diameter of the external thread 42 is preferably located in this area.
  • This thread-forming area 210 can have milled ribs on the thread flanks for further cutting of the thread in the antidote.
  • a region 220 with a fastening thread can then be arranged behind it, which again preferably has a somewhat smaller thread diameter.
  • the different areas have been clearly delimited in FIG. 8a. In principle, however, it is also possible for the transitions between the area 200 with the pre-cutting thread, the thread-forming area 210 and the area 220 with the fastening thread to be fluid.
  • the external thread 42 can have one or more recesses 230 in the thread.
  • the one or more recesses 230 may facilitate the removal of material when forming the antidote. They are also referred to as clearing edges.
  • the recesses 230 are arranged in the area with the pre-tapping thread 200 and in the thread-forming area 210. FIG.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

L'invention concerne un système de fixation (1) pour la retenue en encastrement d'un élément d'isolation (2) sur un substrat (3), comprenant : un élément de fixation (4), lequel élément de fixation (4) présente une zone de fixation (41) et un filetage externe (42), et un élément de retenue (5), lequel élément de retenue (5) comprend une tige de retenue (51), une plaque de retenue (52) et un réceptacle d'outil (53), la tige de retenue (51), la plaque de retenue (52) et le réceptacle d'outil (42) étant disposés les uns sur les autres pour une rotation conjointe, au moins un moyen de coupe (54) étant disposé pour une rotation conjointe sur la plaque de retenue (52) afin de découper l'élément d'isolation (2) sur la circonférence de la plaque de retenue (52) et pour pouvoir poser la plaque de retenue (52) en encastrement, et au moins un moyen de couplage (55) étant agencé pour une rotation conjointe sur un côté intérieur de la tige de retenue (51), le moyen de couplage pouvant être associé au filetage externe (42) de l'élément de fixation (4), et un procédé de retenue en encastrement d'un élément d'isolation (2) sur un substrat (3) à l'aide d'un système de fixation (1).
PCT/EP2022/071977 2021-08-18 2022-08-04 Système et procédé de fixation pour la retenue en encastrement d'éléments d'isolation WO2023020854A1 (fr)

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DE102021209067.2 2021-08-18
DE102021209067.2A DE102021209067A1 (de) 2021-08-18 2021-08-18 Befestigungssystem und Verfahren zum vertieften Halten von Dämmstoffelementen

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1591602A1 (fr) * 2004-04-28 2005-11-02 RANIT-Befestigungssysteme GmbH Système pour fixer des éléments de construction sur un mur
EP1818477A2 (fr) * 2006-02-10 2007-08-15 RANIT-Befestigungssysteme GmbH Système de fixation pour composants sur un sous-sol porteur ainsi que procédé et aide au montage destinés à l'installation du système de fixation
EP3536987A1 (fr) * 2018-03-07 2019-09-11 EJOT Baubefestigungen GmbH Système et procédé de fixation d'une matériau isolant
DE102020212309A1 (de) * 2020-09-30 2022-03-31 Ejot Baubefestigungen Gmbh System und Verfahren zur Befestigung von Dämmstoff

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RS59014B1 (sr) 2016-11-03 2019-08-30 Ejot Baubefestigungen Gmbh Podešavajući tipl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1591602A1 (fr) * 2004-04-28 2005-11-02 RANIT-Befestigungssysteme GmbH Système pour fixer des éléments de construction sur un mur
EP1818477A2 (fr) * 2006-02-10 2007-08-15 RANIT-Befestigungssysteme GmbH Système de fixation pour composants sur un sous-sol porteur ainsi que procédé et aide au montage destinés à l'installation du système de fixation
EP3536987A1 (fr) * 2018-03-07 2019-09-11 EJOT Baubefestigungen GmbH Système et procédé de fixation d'une matériau isolant
DE102020212309A1 (de) * 2020-09-30 2022-03-31 Ejot Baubefestigungen Gmbh System und Verfahren zur Befestigung von Dämmstoff

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