• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a fastening element (1) for the mechanical fastening of insulating and sealing materials on flat roofs, comprising a plastic holder (3) and a screw (11), wherein the plastic holder (3) a load distributing head plate (7) and a below the Headstock (7) extending hollow shaft (6) having a screw-in (4), in which the screw (11) is received axially sunk and located with its screw head (12) on a near the stem tip (8) of the plastic holder (3) Supporting shoulder (9) and supported with its threaded shaft (13) from the shank tip (8) of the plastic holder (3) emerges, which tapers conically pointed and has a deviating from the rotational symmetry outer contour. The invention is characterized in that sliding edges (10) distributed radially around the shank longitudinal axis (5) are arranged on the shank tip (8) of the plastic holder (3), starting from the conical shank tip (8) concentrically with the shank longitudinal axis (5). at least over a portion of the shaft tip (8) extend linearly in the direction of the top plate (7).
    公开号:AT513720A2
    申请号:T7432013
    申请日:2013-09-26
    公开日:2014-06-15
    发明作者:
    申请人:Zahn Harald Gmbh；
    IPC主号:
    专利说明:

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    The invention relates to a fastening element for the mechanical fixation of insulating and sealing material on flat roofs according to the preamble of claim 1.
    From the prior art it is known to secure insulating and sealing materials on flat roofs mechanically against wind suction. In the mechanical fastening, in contrast to a fuse with ballast or gluing the roof structure is anchored by means of fasteners in the supporting roof substrate. For this purpose, so-called Kunststoffschraubkombinationen are preferably used, which consist of a plastic holder with molded top plate and hollow shaft and a screw inserted in the hollow shaft. The screw is laid out on the respective roof substrate, e.g. made of wood, concrete or steel trapezoidal sheet may exist.
    As a roof-sealing layer, plastic or bituminous sheets are known. The bituminous membranes are often laid in multiple layers. When renovating the old waterproofing membranes are usually not removed here, but covered with a new layer that is fixed through the old structure in the roof substrate.
    Particularly in the case of old bituminous membranes, the specialist in charge of remediation encounters the problem that they are severely hardened and can hardly be penetrated by the fastening means. When using a fastener, which - as described above - consists of a plastic holder and a screw inserted into these, although the screw cuts into the hardened bitumen package; however, the lagging plastic shank can not follow in the borehole since it has a smaller diameter than the plastic shank and the borehole can only be widened with great effort. For this reason, either an additional insulating layer And above the new waterproofing membrane must be placed; or it is necessary to use, instead of the Kunststoffschraubkombination a completely made of metal fastener, which consists of a long screw and a load distribution plate. 2.21
    • · · · · «· · · · · · · · · · ······························. · · · · · · · · ·
    From DE 100 31 907 Al a fastener for the connection of insulation materials and waterproofing membranes with the ceiling elements of flat roofs is known in which the fastening element consists of a plastic holder and a screw. The plastic holder has a load distribution plate, below which extends a hollow shaft with a coaxial inner channel for receiving the screw. The screw is positioned with its screw head within the hollow shaft near the shaft tip and protrudes with its screw shaft out of the shaft tip of the plastic holder. On the shaft tip of the plastic holder, a transition sleeve is arranged, from which the shaft tip far end of the screw is out. With the fastener described above, it is possible to use a plastic holder without further modifications, the stem tip is in this case individually shaped by the transition sleeve both in their shape and in their statics and thus can be designed for each roof substrate. The transition sleeve can change the shape of the shaft tip in shape so that the transition sleeve gently penetrates without additional effort gently in the already cut by the leading screw top hard roof layer and this expands, whereby the shaft of the plastic holder can be easily tracked. However, the transition sleeve makes a comparatively complex pre-assembly of the fastener required. There is also the danger that the transition sleeve located on the shaft can inadvertently come loose.
    DE 10 2009 023 426 A1 describes a fastening element for the mechanical fastening of insulating and sealing materials on flat roofs, which consists of a plastic holder with a hollow shaft, on which a head plate is formed. In the hollow shaft a recessed recorded screw is arranged, which sits with its screw head on a support shoulder in the hollow shaft and exits with a part of its threaded shaft and its screw tip from the top plate remote shaft tip of the hollow shaft. With the known fastener is achieved that this can also be easily used in Dachsanierungen when the old hardened roof package remains on the flat roof and should be penetrated by the plastic holder. This is achieved in that the screw below the hollow shaft of the plastic holder carries a friction and / or cutting element, which, after the screw is inserted into the plastic holder is turned over the screw tip on the screw or plugged. 3/21 • ··· ····
    The cutting element rotates with the screw and clears a hole for the trailing plastic holder. The placement and fastening of the cutting element on the screw requires in the pre-assembly of the fastener disadvantageously an additional operation. In addition, the creation of a permanent connection between the cutting element and screw is very expensive.
    From DE 197 45 296 Al a fastener for attaching heat and / or sound insulating insulation boards to a substructure is known, which has a sleeve-shaped holding part for the insulation boards and is provided at its outer end with a top plate and at its foot with a terminating cone , The fastening element further comprises a fixing screw whose head is arranged in the Jhnenöffhung of the holding part and whose shank passes through the end cone for screwing the fastening element to the substructure. On the outer surface of the end cone blade-shaped Räumvorsprünge are arranged. In the outer surface of the end cone is the leading part of the holding part in an insulating board game of the holding part. The proposed Räumvorsprünge the penetrated insulation material, especially in a rotating impressions of the holding part, crushed in the manner of a milling head and at the same time cleared to the side. The fastener described is particularly suitable for brittle, less solid mineral insulation boards made of foamed lightweight concrete, since the insulating material is virtually crushed when rotating the element in the penetration area. In contrast, the element is unsuitable for penetrating old cured bituminous membranes, since projections made of plastic or other raised from the shaft contours of plastic when hitting the cured roof layers are fundamentally subject to a high risk of breakage, which causes them to lose their drilling opening widening effect.
    Not only old to be rehabilitated roof seals may be in terms of penetration of fasteners as adverse layers, but also new insulation and sealing materials may be due to their material properties cause i harsh mounting situations. 4/21 • · # ♦ · · · · · · · · · · «· · · · ······································································
    Accordingly, it is an object of the present invention to provide a fastener for the installation of insulating and / or sealing material on flat roofs, which makes it possible to penetrate the insulating and sealing roof structure with little effort.
    This object is achieved by a fastener with the features of claim 1. Further features of the invention are described in the dependent claims.
    According to the invention, a Befestigungsdement for the mechanical attachment of insulating and sealing materials is proposed on flat roofs, comprising a plastic holder and a screw, wherein the plastic holder has a load-distributing head plate and extending below the top plate hollow shaft with a screw-in, in which the screw The screw supports itself with its screw head on the support tip located near the shaft tip of the plastic holder and comes out with its threaded shaft from the shaft tip of the plastic holder, which tapers conically pointed and has a different from the rotational symmetry outer contour.
    The fastening element according to the invention is characterized in that sliding edges distributed radially around the shaft longitudinal axis are arranged on the shaft tip of the plastic holder, extending linearly from the conical shaft tip concentrically to the shaft longitudinal axis at least over the partial section of the shaft tip. essentially straight, extending in the direction of the top plate.
    By the invention it is possible to bring the fastener without additional tools on almost all types of roof structures in new construction and renovation area but especially on hard cured bituminous membranes used. Even multi-layer roof layers can be easily penetrated, since the leading screw initially forms an immersion bed for the stem tip and the hollow shaft of the following plastic shaft and then the holder geometry according to the invention comes into play, which has only minimal contact points to the insulating and sealing material by the sliding edges. 5/21 • ··· ·· ·· ♦ # ···············································
    The insulating and sealing material has the property of expanding in volume. This means that the insulating and sealing material tries to enclose the fastener penetrating into it. In a known from the prior art fastener with a nearly circular cross-section thereby creates a comparatively large area over which the resulting frictional forces are introduced from the insulating and sealing material in the shaft. This situation, which is disadvantageous for the setting process, is improved in a first simplified embodiment of the fastening element according to the invention in that the sliding edges extend in accordance with the invention at least over the shank tip and not yet over the entire length of the shank.
    In a particularly preferred embodiment of the invention, it is provided that on the shaft tip of the plastic holder radially distributed about the shaft longitudinal axis arranged sliding edges at least partially starting from the conical shaft tip concentric to the shaft longitudinal axis over at least a portion of the shaft length away linearly over the hollow shaft in the direction of Continue headstock. It is not mandatory that all sliding edges of the shaft tip also extend over the hollow shaft. Although the leading shaft tip makes a certain broaching work when setting a fastener according to the invention; however, relatively large frictional forces occur, especially with long fastener parts. These act through the inventively chosen shaft geometry almost only on the sliding edges, so that the forces to be applied during the setting process are significantly reduced overall.
    According to another underlying idea of the invention, the sliding edges are formed by the located on the radius of rotation of the plastic holder edges of the respective shaft cross-section. In the case of a rotating plastic holder, the radius of rotation is equivalent to the circumference of the cross-sectional area that the shaft or the shaft tip has. In a rotating plastic holder, the sliding edges move about the axis of rotation, which is also the shaft longitudinal axis, or the so-called Einschraubachse. The cross-sectional edges which lie on the radius of rotation, in this case form the effective contact surfaces for initiating the frictional forces, which in turn determine the size of the torque required for driving the fastener or the feed forces. Compared with the known from the prior art, having ribs 6/21 • ······························································································· ··· ·····
    Kunststoffhaltem the embodiment of the invention has the advantage that the sliding edges do not form hooks that can tear the sealing sheet to be penetrated and the insulating material. The reduction achieved by undercuts in the shaft cross-section of the actively active contact surfaces and thereby from the
    Shank cross-sectional shape formed sliding edges produce only a point support or line support against frictional forces acting, whereby only a very small torque - and thus at a predetermined diameter - a correspondingly low force required to rotate the fastener during setting process. Protruding ribs or webs, as known from conventional fasteners ago, in contrast, increase the effective contact surfaces, because they cut into the Abdichtbahn and in the insulating material and press the material of the Abdichtbahn, and the insulating material immediately to the outer contour of the holder.
    Of particular advantage in this context, when the stem tip and the hollow shaft of the plastic holder according to another Ausfuhnmgsform of the invention have a deviating from the rotational symmetry outer contour. The applied for the setting process for introducing the fastener into the sealing strip and the Dämmaterial axial force has a nearly linear course, which allows the operator of a setting tool at the same time a power-saving and ergonomic operation.
    In a particularly preferred embodiment of the invention, it is provided that the hollow shaft and the shaft tip of the plastic holder have a polygonal, in particular polygonal cross-section, wherein the shaft tip is formed as a truncated pyramid. The square cross-section may be a square, pentagonal or polygonal, wherein each lying behind the radius of rotation or circumference of the area in contact with the insulating and sealing material total surface falls out and thus can not absorb any frictional forces occurring in a rotation of the fastener.
    It has been found in a preferred embodiment of the invention to be particularly advantageous if the hollow shank and the shank tip of the plastic holder have a triangular cross-section, wherein the stem tip as a triangular truncated pyramid 7/21 • · · · · · ·· ·· • 0 · · English:. German: v3.espacenet.com/textdoc In particular, in a non-rotating plastic holder, the triangular shape has been found as a cross section, which is loaded with only small counter forces
    A particularly preferred embodiment of the invention provides that the hollow shaft of the plastic holder has a quadrangular cross-section. This form is suitable both for linear einzutrreibende as well as during the setting process rotating plastic holder.
    In combination with different shapes of the respective shaft tip is achieved that only minimum forces must be applied for the setting process. As the plastic holder rotates, the stem tip acts like a drill bit. A particularly preferred embodiment of the stem tip is a pile-shaped. This has a gentle effect on the setting devices as well as on the user.
    A preferred embodiment of the invention provides that at least one side surface of the shank tip has an orientation inclined towards the screw-in axis. The screw-in axis is congruent to the longitudinal axis of the screw-in channel. The outer contour of the shaft tip thereby assumes the shape of a cannula, which can be easily penetrate into the ground.
    In a further particularly preferred Ausführungsfoim of the invention, it is provided that the stem tip has at least one sliding edge more than the hollow shaft. This is achieved in that the bevel of the shaft tip extends diagonally beyond the imaginary continuation of a sliding edge on the outside of the hollow shaft between two adjacent surfaces of the shaft tip.
    In a further particularly preferred embodiment of the invention, it is provided that at least the stem tip has at least one flattened surface. This arrowhead-like contour leads to a further facilitated penetration of the stem tip in the roof structure.
    A preferred embodiment of the invention provides that at the outlet of the screw-in channel from the stem tip, the outlet opening is at least partially open. ········································································································································ The cap, which is preferably formed integrally with the wall material of the shaft tip, is broken by the screw inserted in the plastic holder, displaced or interspersed, so that the cap or parts thereof engage behind the thread flanks of the screw. By this measure, a highly efficient captive securing is formed, which prevents accidental dropping out of the screw from the holder, e.g. during transport, prevented.
    In a particularly preferred embodiment of the invention, the cap is a thin plate which presses by its own elasticity even when displaced by the screw always in the direction of screw thread.
    The cap is preferably formed by a spray skin produced during the production process of the plastic holder.
    The cap may be partially or circumferentially connected to the plastic holder. In a partial connection only, it acts like a flap, e.g. when the cap is connected to the plastic holder on one side only.
    The fastener according to the invention is suitable both for such setting methods, in which only the screw screws into the roof substrate and the plastic holder follows linearly without rotational movement, as well as for setting operations in which the screw and the plastic holder by means of a special tool perform a rotational movement. The eifindungsgemäße fastener is designed for universal. Which setting method is ultimately used is determined by the user after an evaluation of the roof structure and the supporting roof substrate.
    In order to obtain the last-mentioned universality with respect to a rotary or non-rotary setting process, it is provided in a development of the invention that the plastic holder has a rotary drive means. This can e.g. a be formed in the hollow shaft of the plastic holder integral with this hexagon socket. The advantage here is that the tool which detects the screw, e.g. a screwdriver bit, on his 9/21
    • · · · · · · · - · · · · · · · · · · · · · · · ·
    Screw rod can be designed with a hex drive, so that no second tool is required to turn the screw and the plastic holder synchronously.
    In particular, when using a hexagon socket, it is advantageous according to another embodiment of the invention, when the hollow schaff below the top plate of the plastic holder has a thickening, which extends at least over the length of the rotary drive means in the hollow shaft away. Thereby, the weakening of the shaft, which occurs through the use of an integral hexagonal socket in the shaft, neutralized again and the shaft against the torsional forces that occur when turning the holder, stabilized.
    In a further particularly preferred embodiment of the invention, it is provided that on the underside of the top plate at least one radially extending web is arranged, which preferably extends along a circumferential line concentric with the shaft longitudinal axis. Preferably, however, a plurality of radially extending webs are provided, which are preferably distributed at equal distances from each other around the circumference. In non-rotationally actuated fasteners that penetrate linearly and without rotational movement in the roof structure, the webs claw into the roof seal, without destroying them. When rotating fasteners, the claw occurs as well, the webs form by their radial alignment no resistance, but support the rotation.
    In a particularly preferred embodiment of the invention, it may further be provided that the webs are spaced apart individual circle segments. The provision of individual segments results overall in a smaller contact surface than in a closed ring, which results in such an overall reduced torque compared to such, which must be used to screw the configured in this way fastening section in the roof surface. In the case of a plastic holder which is introduced non-rotatively into the substrate, the individual webs advantageously produce an improved claw function in comparison to a closed ring.
    A particular advantage is achieved in this context, if the webs formed as a circle segments in at least two circular rows with different radii 10/21 Λ · ι:. are arranged. The claw function is almost doubled in this case. A further improvement of the retaining forces / claw effect can furthermore be obtained by arranging the webs of the first row formed as circle segments radially offset with respect to the webs of the second row.
    The invention will be described below with reference to the drawings with reference to preferred embodiments, in which:
    1 shows the fastener according to the invention in a side view,
    FIG. 2 shows a plan view of the fastening element of FIG. 1 without a screw,
    3 is a bottom view of the fastener of Figure 1 without screw,
    FIG. 4 shows a cross-sectional view of the shaft of the fastening element of FIG. 1 in the direction of the shaft tip, without a top plate and without a screw,
    FIG. 5 shows a cross-sectional view of the shaft in the direction of the shaft tip, without a top plate and without a screw in a further embodiment of the invention,
    6 shows a hollow shaft with a quadrangular cross-section and a pyramid-shaped or truncated pyramidal stem tip, FIG.
    FIG. 7 shows a plan view of the shaft tip according to FIG. 6,
    8 shows a hollow shaft with a quadrangular cross-section and a pyramid-shaped or truncated pyramid-shaped shaft tip, which has a sliding edge more than the hollow shaft, FIG.
    FIG. 9 shows the plan view of the shaft tip according to FIGS. 8 and 11/21
    • ♦ • · • # ♦ -J ·······················································
    Figure lOden course of expended axial force in a fastener of the prior art and a fastener according to the embodiment of Fig. 6.
    Figures 1 to 4 show the fastener 1 according to the invention in a first Ausfuhrungsfoim. This comprises a plastic holder 3 and a screw 11. The plastic holder 3 consists of a hollow shaft 6 and a preferably molded thereto head plate 7. The plastic holder is penetrated by a longitudinal axial screw-4. Within the hollow shaft 6, a support shoulder 9, which is produced by the diameter reduction of the screw-in channel, is formed near the shaft tip 8, on which the screw head 12 of the screw 11 sunk into the hollow shaft 6 comes to lie. With its threaded shaft 13, the screw 11 protrudes from the hollow shaft 6 of the plastic holder 3 and extends coaxially to the shaft longitudinal axis 5, which also forms the drilling axis of the fastener 1 at the same time. The screw head 12 far end of the screw 11 carries a drill bit 14, which makes it possible that the fastener 1 can be used on a supporting roof substrate made of trapezoidal steel sheet.
    As shown particularly in FIG. 4, the hollow shaft 6 and the shaft tip 8 of the plastic holder 3 are triangular in cross-section, with sliding edges 10 extending at the vertices of the triangle. These lie on a Rotatiönsradius designated by the Bezugszififer 20 and are generated by the fact that there is an undercut between the sliding edges 10, which spares the shaft material lying between the rotation radius 20 and the shaft longitudinal axis 5.
    The stem tip 8 of the plastic holder 3, in contrast, has a pyramid-shaped outlet, such that the reduced effective outer contour also extends over the stem tip.
    In order to enable the fastener 1 in rotation if necessary, a rotary drive means 34 is arranged in the form of a hmensechskantes in the hollow shaft 6, in which a corresponding tool can engage with the hexagon socket adapted Hexagon hexagon. The setting process of the fasteners 1 is carried out with 12/21 •·· # ·· ·· ··· ··. · · · V. »· · ···
    Help of a not shown in the figures, known setting machines or a hand-held device. Both include a tool insert, e.g. a screwdriver bit, with which the screw 11 is screwed into the roof substrate. In addition, the plastic holder 3 can be rotated, for which purpose a second rotary drive means, e.g. in the form of the aforementioned hexagon, is provided for engagement with the plastic holder 3. This allows the screw and the plastic holder to rotate synchronously with just one tool.
    In order to stabilize the plastic holder 3 against the forces exerted by the tool during the setting process on the plastic holder torsional forces, the hollow shaft 6 is provided over the length of the hexagon socket away with a thickening 24, which prevents tearing off of the top plate 7.
    Figures 2 and 3 show the top plate 7 of the plastic holder. On the underside 51 of the top plate 7 radially distributed around the shaft longitudinal axis 5 webs 61,61a are arranged, which consist of circular segments which lie along two circular rows 63, 63a with different radii. The webs 61 of the first row 63 are radially offset from the webs 61 a of the second row 63 a, such that an arrangement similar to a labyrinth seal results.
    FIG. 5 shows a further embodiment of the fastening element 1 according to the invention with a possible modification of the shaft cross-section. The inventive effect of the sliding edges is achieved in this embodiment in parts already when the hollow shaft, or the shaft tip, is provided with a flattened surface 22.
    FIG. 6 shows a hollow shaft 6 of a plastic holder with a quadrangular cross-section. The shaft tip 8 has the same number of sliding edges 10 as the hollow shaft: 6, wherein these run obliquely inclined relative to the shaft longitudinal axis 5 to a truncated pyramid. The screw-in channel 4 tapers in the region of the support shoulder (not visible here) in the hollow shaft and exits at the end face of the shaft tip with a circular cross-section, as shown in FIG. 13/21 • ·: ι;.
    FIG. 8 shows a variant of the invention. The hollow shaft 6 has four sliding edges, which are designated 10a, b, c and d. In contrast to the embodiment according to FIGS. 6 and 7, the shaft tip 8 is formed with five sliding edges, which are designated 10e, f, g, h and i. The additional fifth sliding edge is created by the cannula-shaped configuration of the stem tip, in that the sliding edge 10d is broken, i. H. merges into two sliding edges 10i and 10h, which diverge, for example, at an angle of between 10 and 40 degrees or even more in the direction of the shaft tip. Between the sliding edges 10i and 10h in the region of the shaft tip 8, a further surface 71 adjacent to the side surfaces 69 and 70 is formed, from which the screw-in channel 4 exits with an elliptical cross-section, as indicated by the illustrated elliptical outlet opening 65 in FIG. The screw-in channel 4 exits there with an elliptical cross-section. The outlet opening 65 is partially covered by a cap 67, which is partially broken and engaged behind the axial imports of a not shown in Figure 8 and 9 screw from the thread flanks of the screw.
    FIG. 10 shows a diagram of the course of the axial force to be applied during the setting process of a fastener according to the prior art (curve "B") and a fastener according to the invention according to the embodiment of FIG. 6 (curve "A"). As can be seen from the diagram, the axial force to be applied for introducing the fastener of the prior art initially increases linearly to a maximum value "1" of about 200N until the stem tip penetrates into the roof, whereas the fastener according to the invention for this purpose only one maximum axial force of 150N (point D) required. As can further be seen from the diagram of FIG. 10, the level of axial force to be applied for inserting the fastener according to the invention in the further course of the setting process is reduced overall compared to the level of the axial force in the prior art reference fastener. 14/21
    权利要求:
    Claims (24)
    [1]
    Fastening element (1) for the mechanical fastening of insulating and sealing materials on flat roofs, comprising a plastic holder (3) and a screw (11), wherein the plastic holder (3) has a load distributing head plate (7) and a below the top plate (7) extending hollow shaft (6) having a screw-in (4), in which the screw (11) is received axially sunk and with its screw head (12) on a near the Supported tip (8) of the plastic holder (3) located support shoulder (9) and with its threaded shank (13) from the shank tip (8) of the plastic holder (3) emerges, characterized in that on the shank tip (8) of the plastic holder (3) Sliding edges (10) distributed radially around the shaft longitudinal axis (5) are arranged, which extend from the conical shaft tip (8), at least over a partial section of the shaft tip (8), concentrically with the shaft length Axial (5) extend substantially in a straight line in the direction of the top plate (7).
    [2]
    2. Fastening element according to claim 1, characterized in that on the shaft tip (8) of the plastic holder (3) radially around the shaft longitudinal axis (5) distributed sliding edges (10) at least partially from the conical shaft tip (8) over a leg of the sheep length continue substantially straight in the direction of the top plate (7).
    [3]
    3. Fastening element according to one of the preceding claims, characterized in that the sliding edges (10) by the on the radius of rotation (20) of the plastic holder (3) located edges of the respective shaft cross-section are formed. 15/21 ··· ··· • · I • · i ··· ·· • ♦ ♦ · • · ♦ ·

    • · ♦ · · «· · · · · • ♦♦
    [4]
    4. Fastening element according to one of the preceding claims, characterized in that the stem tip (8) and the hollow shaft (6) of the plastic holder (3) have a deviating from the rotational symmetry outer contour.
    [5]
    5. Fastening element according to one of the preceding claims, characterized in that the hollow shaft (6) and the shank tip (8) of the plastic holder (3) have an angular, in particular polygonal cross-section, wherein the shank tip (8) is designed as a truncated pyramid.
    [6]
    6. Fastening element according to claim 5, characterized in that the hollow shaft (6) and the shank tip (8) of the plastic holder (3) have a triangular cross-section, wherein the shank tip (8) is formed as a triangular truncated pyramid.
    [7]
    7. Fastening element according to one of the preceding claims, characterized in that the hollow shaft (6) of the plastic holder (3) has a quadrangular cross-section.
    [8]
    8. Fastening element according to one of the preceding claims, characterized in that the shank tip (8) is formed Pfahlföimig.
    [9]
    9. Fastening element according to one of the preceding claims, characterized in that at least one side surface of the shaft tip (8) has a direction inclined to the screw-in alignment. 16/21

    ··· ······ 1 · 7 ·········································································
    [10]
    10. Fastening element according to one of the preceding claims, characterized in that the shank tip (8) has at least one sliding edge (10) more than the hollow shaft (6).
    [11]
    11. Fastening element according to one of the preceding claims, characterized in that the shaft tip (8) has at least one flattened surface (22).
    [12]
    12. Fastening element according to one of the preceding claims, characterized in that at the outlet of the screw-in channel (4) from the stem tip (8), an outlet opening (65) at least partially overlapping cap (67) is arranged.
    [13]
    13. Fastening element according to one of the preceding claims, characterized in that the cap (67) is a thin plate.
    [14]
    14. Fastening element according to one of the preceding claims, characterized in that the cap (67) is formed by a sprayed skin produced in the holder production.
    [15]
    15. Fastening element according to one of the preceding claims, characterized in that the cap (67) is partially connected to the plastic holder (3).
    [16]
    16. Fastening element according to one of the preceding claims, characterized in that the cap (67) is connected on one side with the plastic holder (3). 17/21 • · · · 18 ::: • · · * * • · · · · · · · · · · · · · · · · · · · · · · ·
    [17]
    17. Befestigungsseiement according to one of the preceding claims, characterized in that the plastic holder (3) has a rotary drive means (34).
    [18]
    18. Fastening element according to claim 17, characterized in that the rotary drive means (34) in the hollow shaft (6) of the plastic holder (3) formed hexagon socket.
    [19]
    19. Fastening element according to one of the preceding claims, characterized in that the hollow shaft (6) below the top plate (7) has a thickening (24) which extends at least over the length of the rotary drive means (34) in the hollow shaft (6).
    [20]
    20. Fastening element according to one of the preceding claims, characterized in that on the underside (51) of the top plate (7) at least one concentric to the shaft longitudinal axis (5) extending web (61) is formed.
    [21]
    21. Fastening element according to one of the preceding claims, characterized in that on the underside (51) of the top plate (7) a plurality of concentric to the shaft longitudinal axis (5) extending radially distributed webs (61) are arranged.
    [22]
    22. Fastening element according to claim 21, characterized in that the webs (61) are spaced circle segments.
    [23]
    23. Fastening element according to claims 21 and 22, characterized in 18/21

    in that the webs (61, 61a) formed as circular segments are arranged along at least two circular rows (63, 63a) of different radius.
    [24]
    24. Fastening element according to claim 23, characterized in that the circular segments formed as webs (61) of the first row (63) relative to the webs (61 a) of the second row (63 a) are arranged offset radially. Harald Zahn GmbH /

    Vienna, September 19, 2013 19/21
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    同族专利:
    公开号 | 公开日
    DE102012022574A1|2014-05-22|
    AT513720B1|2015-06-15|
    AT513720A3|2014-11-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE29718100U1|1997-10-13|1998-05-07|Siewer Heike|Fastening element for insulation materials|
    DE19745296A1|1997-10-14|1999-04-15|Dennert Kg Veit|Mounting for insulation plates|
    DE10031907B4|2000-06-30|2013-01-17|Harald Zahn Gmbh|fastener|
    FR2920844B1|2007-09-10|2009-11-27|Lr Etanco Atel|FIXING PIECE HAVING RIBS AND A BEVEL TIP.|
    DE102009023426A1|2009-05-29|2010-12-09|Harald Zahn Gmbh|Fastening element for mechanical fixing of insulating and sealing materials on flat roofs of building, has screw supporting friction element below shaft, where element is untwisted or attached on screw after inserting screw into holder|DE102017002709B4|2017-03-21|2021-06-02|Harald Zahn Gmbh|Multifunctional setting tool|
    DE102017007682A1|2017-08-15|2019-02-21|Harald Zahn Gmbh|setting tool|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE201210022574|DE102012022574A1|2012-11-20|2012-11-20|Attachment element for mechanical fastening insulation and sealing materials on flat roof, has sliding edge portions which are arranged from stem tip and are extended over section of stem tip in linear direction of top plate|
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