Fastener

Abstract

A fastener (1) with a main body (2) whose external surfaces, with the exception of a fastening side (3) that serves to effect fastening to an object, are sealed up in a diffusion-proof way. The main body (2) has a discrete arrangement of reservoirs (6) opening out to the fastening side (3) that have a filler (7, 7a, 7b) with a hydrophilic material and/or moisture. An aerobic adhesive can be applied to the fastening side (3); hardening of the aerobic adhesive is brought about by the filler (7, 7a, 7b).

Claims

1. Fastener with a main body (2), whose external surfaces are sealed up in a diffusion-proof way, with the exception of a fastening side (3) that serves to effect fastening to an object, characterized in that the main body (2) has a discrete arrangement of reservoirs (6) opening out to the fastening side (3) that have a filler (7, 7a, 7b) with a hydrophilic material and/or moisture, and that an aerobic adhesive can be applied to the fastening side (3), wherein curing of the aerobic adhesive is brought about by the filler (7, 7a, 7b).

2. Fastener according to claim 1, characterized in that the aerobic adhesive is comprised of silane polymers or of polyurethane.

3. Fastener according to claim 1, characterized in that the hydrophilic material comprises cotton, a composite fiber material, a salt, a mineral or a resin.

4. Fastener according to claim 1, characterized in that the filler (7, 7a, 7b) contains moisture or that moisture is supplied to the filler (7, 7a, 7b).

5. Fastener according to claim 4, characterized in that the moisture is comprised of water or isopropanol that is in a liquid form or a gel form.

6. Fastener according to claim 1, characterized in that hydrophilic material containing moisture is stored in the reservoirs (6) as the filler (7, 7a, 7b).

7. Fastener according to claim 6, characterized in that the filler (7, 7a, 7b) is pressed into the reservoirs (6).

8. Fastener according to claim 1, characterized in that hydrophilic material not containing moisture has been put into storage in the reservoirs (6) and that moisture is subsequently supplied to the hydrophilic material.

9. Fastener according to claim 8, characterized in that the hydrophilic material is pressed into the reservoirs (6).

10. Fastener according to claim 1, characterized in that hydrophilic material is put into storage in the reservoirs (6) as the filler (7, 7a, 7b), in particular by being pressed in, that heats up when in contact with moisture.

11. Fastener according to claim 10, characterized in that the hydrophilic material is comprised of a zeolite.

12. Fastener according to claim 1, characterized in that the reservoirs (6) are comprised of hollow cylindrical recesses in the main body (2).

13. Fastener according to claim 1, characterized in that the reservoirs (6) have identical shapes.

14. Fastener according to claim 1, characterized in that an overflow channel (10) that extends around the entire circumference of the fastening side (3) is connected to the outer edge of the fastening side (3).

15. Fastener according to claim 13, characterized in that the outside of the overflow channel (10) is bordered by an edge segment (4) of the main body (2) that projects over the fastening side (3).

16. Fastener according to claim 14, characterized in that an adhesive agent is applied to the exposed face of the edge segment (4).

17. Fastener according to claim 16, characterized in that the adhesive agent is adhesive tape (9).

18. Fastener according to claim 1, characterized in that it is an adapter to which an object can be attached.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The invention will be explained with the aid of the drawings below. The following are shown in the figures:

[0046] FIG. 1: First example of the fastener as per the invention.

[0047] FIG. 2A: Partial representation of the fastener in accordance with FIG. 1 in a longitudinal section with a first filler in the reservoir of the fastener before the application of aerobic adhesive to the fastening side of the fastener.

[0048] FIG. 2B: The fastener of 2A after the application of aerobic adhesive to the fastening side of the fastener.

[0049] FIG. 3A: Partial representation of the fastener in accordance with FIG. 1 in a longitudinal section with a second filler in the reservoir of the fastener before the application of aerobic adhesive to the fastening side of the fastener.

[0050] FIG. 3B: The fastener of 3A after the application of aerobic adhesive to the fastening side of the fastener.

[0051] FIG. 4A: Partial representation of the fastener in accordance with FIG. 1 in a longitudinal section with a third filler in the reservoir of the fastener before the application of aerobic adhesive to the fastening side of the fastener.

[0052] FIG. 4B: The fastener of 4A after the application of aerobic adhesive to the fastening side of the fastener.

[0053] FIG. 5: Second example of the fastener as per the invention.

[0054] FIG. 6: Third example of the fastener as per the invention.

[0055] FIG. 7: Fourth example of the fastener as per the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0056] FIG. 1 shows a first example of a fastener 1 that can, in particular, be designed as an adapter. The fastener 1 has a main body 2 comprised of a diffusion-proof material, meaning a material that is impervious to gas an liquid. The main body 2 is comprised of a metallic material, for instance aluminum, a zinc die-cast or a plastic.

[0057] The main body 2 has a circular cross-section; its base surface and its external surface are completely closed, diffusion-proof surfaces. The side of the main body 2 opposite the base surface forms a fastening side 3 with which the fastener 1 is attached to an object, for instance a wall of a building. The fastening side 3 forms a flat surface that is essentially circular. The upper edge of the cylindrical outer wall forms an edge segment 4 that slightly projects over the fastening side 3. The top of the edge segment 4 forms a flat support surface with which the fastener 1 can be placed on the object.

[0058] As FIG. 1 shows, the fastening side 3 is interspersed with a discrete arrangement of openings 5 that are essentially uniform, meaning that they are distributed at essentially equal distances to each other over the entire fastening side 3. The openings 5 constitute the outlets of reservoirs 6 that are shown in FIGS. 2 to 4.

[0059] The reservoirs 6 constitute hollow cylindrical recesses, in this case circular cylindrical recesses, in the main body 2. The reservoirs 6 of the main body 2 have identical designs in each case. The lengths of the reservoirs 6 run perpendicular to the fastening side 3 here.

[0060] As shown in FIGS. 2 to 4 for various variants of the invention, a filler 7, 7a, 7b is put into storage in the reservoirs 6. If an aerobic adhesive is applied to the fastening side 3 for fastening, the aerobic adhesive comes into contact with the filler 7, 7a, 7b that has been put into storage in the reservoirs 6. The filler 7, 7a, 7b promotes and accelerates the hardening process of the aerobic adhesive, so the aerobic adhesive cures in its entire volume. The aerobic adhesive is applied to the fastening side 3 in such a way that it forms a layer that does not, or does not significantly, project over the edge segment 4 of the main body 2. The fastener 1 with the layer of aerobic adhesive applied to the fastening side 3 is then placed on the object. The adhesive layer 8 is therefore encapsulated in a diffusion-proof way with respect to the surroundings, so the hardening process is independent of external ambient influences.

[0061] The aerobic adhesive is preferably comprised of a silane polymer, especially a silane MS polymer or polyurethane.

[0062] The filler 7, 7a, 7b is comprised of at least one hydrophilic material and/or moisture.

[0063] It is advantageous when the hydrophilic material is comprised of cotton, a composite fiber material, a salt, a mineral or a resin.

[0064] Furthermore, the moisture is comprised of water or isopropanol, which is in a liquid or gel form.

[0065] FIGS. 2a and 2b show a first variant of the invention. In the arrangement of FIG. 2a, a hydrophilic material, to which moisture is supplied, is put into storage in all of the reservoirs 6 as a filler 7a. A salt or a mineral is provided as a hydrophilic material, as an example, to which water is added as the moisture. The filler 7a that is formed in this way can be pressed into the reservoirs 6, in particular, so that it is stored so as not to be lost in the main body

[0066] The hydrophilic material containing moisture forms a filler 7b that can directly react with the aerobic adhesive so that it will harden. If, as shown in FIG. 2b, the aerobic adhesive is applied to the fastening side 3 in the form of an adhesive layer 8, the aerobic adhesive will penetrate into the reservoir 6 and come in contact with the filler 7b. If the arrangement formed in this way is applied to the object, moisture is transported from the filler 7b to the adhesive layer, so the aerobic adhesive can cure in its entire volume.

[0067] FIGS. 3a and 3b show a second variant of the invention. As FIG. 3 shows, a filler 7a that does not contain moisture is contained in all of the reservoirs 6. As shown with the arrow designated I in FIG. 3a, moisture, for instance water or isopropanol, is subsequently added to the filler 7a in the reservoirs 6. A hydrophilic material containing moisture is therefore obtained as a filler 7b (FIG. 3b). After that, an adhesive layer 8 is applied to the fastening side 3, so the aerobic adhesive comes into contact with the filler 7b in the form of a hydrophilic material containing moisture, so the aerobic adhesive can cure.

[0068] FIGS. 4a and 4b show a third variant of the invention. In accordance with the embodiment of FIGS. 3a and 3b, a hydrophilic material that does not contain moisture is put into storage in the reservoirs 6, in particular pressed in, as a filler 7a. In this case, the hydrophilic material is comprised of a material that heats up when moisture is added. It is advantageous when the filler 7a is comprised of a zeolite powder.

[0069] In this embodiment, moisture is added once again to the filler 7a (Arrow II in FIG. 4a) and an adhesive layer 8 is applied right after that (FIG. 4b). The generation of heat in the filler 7b brought about by the addition of moisture accelerates the hardening process of the aerobic adhesive.

[0070] FIG. 5 shows a further embodiment of the fastener 1. This fastener 1 only differs from the embodiment of FIG. 1 in that an adhesive agent in the form of a double-sided adhesive tape 9 is applied to the support surface of the edge segment 4 of the main body 2 projecting over the fastening side 3. The adhesive tape 9 serves as a means for preliminarily fixed the fastener 1 in place on the object.

[0071] FIG. 6 shows a further embodiment of the fastener 1. This fastener 1 only differs from the embodiment of FIG. 1 in that an overflow channel 10 is provided between the edge of the fastening side 3 and the edge segment 4 of the main body 2. The overflow channel 10 forms a deepened area that extends with a constant cross-section over the entire circumference of the fastening side 3. The overflow channel 10 prevents an overflow of the aerobic adhesive over the edge segment 4 when the aerobic adhesive is applied to the fastening side 3.

[0072] The embodiment of the fastener 1 in accordance with FIG. 7 represents a combination of the embodiments of FIGS. 5 and 6, meaning that the fastener 1 in accordance with FIG. 7 has both adhesive tape 9 on the edge segment 4 of the main body 2 and an overflow channel 10.

LIST OF REFERENCE NUMERALS

[0073] (1) Fastener [0074] (2) Main body [0075] (3) Fastening side [0076] (4) Edge segment [0077] (5) Opening [0078] (6) Reservoir [0079] (7) Filler with moisture [0080] (7a) Filler without moisture [0081] (7b) Filler without moisture [0082] (8) Adhesive layer [0083] (9) Adhesive tape [0084] (10) Overflow channel