Fastening device having a positionable carrying element

Abstract

The invention relates to a fastening device having at least one positionable holding device, comprising a base plate having an extensively flat rear surface and a front surface, opposite the rear surface, wherein a first guide channel is formed on the front surface. The guide channel is delimited by side walls, wherein engagement areas are formed at least in sections on at least one of the side walls. According to the invention, a slide element is arranged in the guide channel, which can be displaced along the guide channel, wherein the slide element has a carrying element, wherein two spring elements are formed on the slide element, which can engage with the engagement surfaces of the guide channel in a blocking position, and wherein there is a movable locking element on the slide element, which fastens the spring elements at least in the blocking position.

Claims

1. A fastening device having at least one positionable carrying element, comprising: a base plate with a largely flat rear surface and a front surface which is situated opposite the rear surface, wherein a first guide channel is realized on the front surface, wherein the guide channel is delimited by side walls, wherein engagement surfaces are realized at least in portions on at least one of the side walls, wherein a sliding element, which is displaceable along the guide channel, is arranged in the guide channel, wherein the carrying element is arranged on the sliding element, and wherein two spring elements, which can engage with the engagement surfaces of the guide channel in a blocking position, are realized on the sliding element, wherein a movable blocking element, which fixes the spring elements at least in the blocking position, is provided on the sliding element, wherein the two spring elements realize a second guide channel, wherein the blocking element is reversibly displaceable along the second guide channel, wherein the blocking element in a first release position in the second guide channel enables a displacement of the sliding element along the first guide channel and the blocking element in a second blocking position in the second guide channel suppresses a displacement of the sliding element along the first guide channel, and wherein a displacement of the blocking element from the second blocking position into the first release position is effected against the force of gravity.

2. The fastening device as claimed in claim 1, wherein with the blocking element in a release position, the spring elements are not engaged with the engagement surfaces, wherein the blocking element fixes the spring elements also in the release position.

3. The fastening device as claimed in claim 1, wherein the second guide channel runs completely inside the first guide channel.

4. The fastening device as claimed in claim 1, wherein the first guide channel is angled at a maximum of 45 to the direction of gravity and optionally runs parallel to the direction of gravity.

5. The fastening device as claimed in claim 1, wherein the engagement surfaces are realized on both sides in the side walls of the first guide channel.

6. The fastening device as claimed in claim 1, wherein the first guide channel is closed or closable by a connecting web at one end, optionally at a lower end in the direction of the gravity.

7. The fastening device as claimed in claim 1, wherein guide grooves and latching elements for the blocking element are provided on the sliding element.

8. The fastening device as claimed in claim 1, wherein the sliding element comprises a carrying plate with a horizontal groove which runs perpendicular to the first guide channel, wherein the carrying element is displaceably mounted in the horizontally extending groove.

9. The fastening device as claimed in claim 1, wherein on free ends of the spring elements, the sliding element comprises two engagement surfaces which can be operatively connected to the first engagement surfaces, optionally can latch in the first engagement surfaces.

10. The fastening device as claimed in claim 1, wherein guide strips, by way of which the sliding element is guided displaceably in the base plate, are realized on the spring elements.

11. The fastening device as claimed in claim 10, wherein the guide strips are guided between a base, the base plate and front walls of the base plate.

12. The fastening device as claimed in claim 1, wherein pressing surfaces are provided on the base plate for applying an installing force when bonding the base plate to a surface.

13. The fastening device as claimed in claim 1, wherein the fastening device includes fastening means, optionally an adhesive strip which is effective on two sides, for fixing on a surface, optionally on a vertical wall.

14. The fastening device as claimed in claim 13, wherein the fastening means, optionally the adhesive strip which is effective on two sides, are detachable from the surface in a residue-free and damage-free manner.

15. The fastening device as claimed in claim 1, wherein the second guide channel tapers conically in the release position in the direction of the free ends of the spring elements.

Description

(1) The invention is explained below by way of preferred embodiments with reference to the accompanying figures, in which:

(2) FIG. 1 shows a perspective view of a fastening device according to the invention;

(3) FIG. 2 shows a perspective view of a base plate of the fastening device according to the invention;

(4) FIG. 3 shows the front view of the base plate from FIG. 2;

(5) FIG. 4 shows the rear view of the base plate from FIG. 2;

(6) FIG. 5 shows a perspective view of a sliding element of a fastening device according to the invention;

(7) FIG. 6 shows a side view of the sliding element from FIG. 5;

(8) FIG. 7 shows the front view of the sliding element from FIG. 5;

(9) FIG. 8 shows the rear view of the sliding element from FIG. 5;

(10) FIG. 9 shows a perspective view onto the front surface of a blocking element of a fastening device according to the invention;

(11) FIG. 10 shows a side view of the blocking element from FIG. 9;

(12) FIG. 11 shows the top view of the blocking element from FIG. 9;

(13) FIG. 12 shows a further perspective view onto the rear surface of the blocking element from FIG. 9;

(14) FIG. 13 shows the front view of the sliding element with the blocking element inserted;

(15) FIG. 14 shows the rear view of the sliding element with the blocking element inserted;

(16) FIG. 15 shows the front view of a retaining device of the fastening device according to the invention;

(17) FIG. 16 shows a perspective view of a further realization of a retaining device;

(18) FIG. 17 shows a sectional representation of the retaining device from FIG. 13;

(19) FIG. 18 shows a further sectional representation of the retaining device from FIG. 13;

(20) FIG. 19 shows a further embodiment of a fastening device according to the invention with a retaining device and an adhesive strip which is effective on two sides;

(21) FIG. 20 shows the retaining device from FIG. 19 in the blocked position;

(22) FIG. 21 shows a sectional diagram to illustrate the guide channels;

(23) FIG. 22 shows a further sectional diagram to illustrate the guide channels;

(24) FIG. 23 shows a sectional diagram of a further realization of the sliding element with a carrying element which is additionally horizontally adjustable;

(25) FIG. 24 shows a further sectional diagram of the sliding element with the carrying element which is additionally horizontally adjustable; and

(26) FIG. 25 shows a schematic image of the front view of a further sliding element.

(27) It is assumed below that a fastening device 100 according to the invention is attached to a vertical wall of a living area. Directional specifications such as above and below refer to said case. In addition, identical components or components with the identical function are provided with identical reference signs in the following description of the figures.

(28) FIG. 1 shows a fastening device 100 according to the invention which includes a base plate 1, a sliding element 2 and a blocking element 3. In addition, the fastening device 100 according to the invention can include fastening means 4, in particular an adhesive strip 45 which is effective on two sides, for attaching the fastening device 100 on a wall. A retaining device 10 comprises at least one base plate 1 and one sliding element 2 which is displaceable relative thereto.

(29) As shown in FIG. 2 to FIG. 4, the base plate 1 comprises a fastening device 100 according to the invention, a base 20 with a substantially flat rear surface 11 which, in the installed state, extends in a plane-parallel manner to the wall on which it is to be fastened. The base 20 additionally comprises a front surface 12 which is located opposite the rear surface 11 and from which two side walls 14, which run in parallel, extend in the vertical direction parallel to its side edges. In this case, the inside surfaces 13 of the side walls 14 run substantially normal to the front surface 12 of the base 20. A vent opening can be realized on the rear surface 11 of the base plate 1.

(30) Connecting to the side walls 13, in each case realized at a right angle thereto, are front walls 15 which extend at a distance parallel to the front surface 12 of the base 20. The front walls 15 comprise end faces 13 which face one another, are spaced from one another and, together with the front surface 12 of the base 20, realize a first guide channel 61. The oppositely situated end faces 13 are smooth in portions and realized as first engagement surfaces 16 in portions. The first engagement surfaces 16 can be realized as symmetrical or asymmetrical toothing. The flank tips and the bottom of the toothing of the engagement surfaces 16 are preferably rounded.

(31) As an alternative to this or in addition to it, it is possible to provide the engagement surfaces 16 with a surface which, compared to the second engagement surfaces 24 which are realized on the sliding element 2 and are described below in the description relating to FIG. 5 to FIG. 8, comprises a static friction coefficient of at least 0.2 measured to DIN 53375.

(32) The front walls 15 can close off in the lower region with a horizontal connecting web 19 which provides a further boundary of the first guide channel 61 and connects the two front walls 15 together in said region. The connecting web 19 can carry operating instructions or a brand logo as a source of information.

(33) For improved vertical positioning of the retaining device 10 or of the base plate 1, lateral positioning notches 17, which can be aligned to a horizontal reference line, can be provided on the outsides of the two side walls 14. In an analogous manner to this, positioning notches 18, which in each case are oppositely situated centrally on a horizontal upper edge and/or on a horizontal lower edge on the retaining device 10 or on the base plate 1, can be realized for determining a horizontal position. In cooperation with a spirit level or a plumb line, the oppositely situated positioning notches 18 additionally support a precise vertical alignment of the base plate 1 or the retaining device 10. As an alternative to this, a spirit level integrated in the base plate 1 or miniaturized electro-mechanical tilt sensors with a wireless display or a display that is connectable through wires can simplify the installation.

(34) The front walls 15 with the front surface 12 of the base 20, the insides of the side walls 14, the inside of the front walls 15 and the end faces 13 of the front walls 15 realize the first guide channel 61 which runs vertically and comprises a T-shaped cross section.

(35) FIG. 5 to FIG. 8 show a sliding element 2 of a fastening device 100 according to the invention. The sliding element 2 includes a carrying plate 21 with an upper edge, a flat rear surface 29, a lower edge and a front surface. A carrying element 26 for attaching objects rises from the front surface of the carrying plate 21. The carrying element 26, in this case, is preferably formed as a sloping truncated cone with an elliptical or oval base. The carrying plate 21 is flanked to the side by a pair of first guide strips 22. The rear surfaces of the two guide strips 22 are coplanar to the rear surface 29 of the carrying plate 21.

(36) Two web-shaped spring elements 23, which extend parallel in the vertical direction, extend from a lower end face of the carrying plate 21. A rear surface of the spring elements 23 is coplanar to the rear surface 29 of the carrying plate 21. The spring elements 23 each carry, on their rear side, guide grooves 27 which face one another for guiding the blocking element 3, which is described in more detail below in the description of the figures relating to FIG. 9 to FIG. 12. Latching elements 28, which rise from the bottom of the guide groove 27, are arranged in the guide grooves 27 of the spring elements 23. The lower region of the spring elements 23, remote from the carrying element 26, is flanked by second guide strips 25. Said second guide strips 25 are remote from one another and point outward. The side edges of the second guide strips 25 are co-linear with the side edges of the first guide strips 22. The spring elements 23 can comprise recesses in order to increase the elasticity of the spring element 23 and to facilitate deflecting when the sliding element 2 is displaced.

(37) The two spring elements 23 form a second guide channel 62, the blocking element 3 being reversibly displaceable along said second guide channel 62. Second engagement elements 24, which act outward in each case, are integrally formed on the free ends of the spring elements 23. A straight line, which is perpendicular to the rear surface 29 of the carrying plate 21, lies in the tangential plane of each of the second engagement surfaces 24. The second engagement surfaces 24 are realized for a positive locking, friction locking or a combined positive and friction locking engagement complementarily to the first engagement surfaces 16 of the base plate 1.

(38) Along with a connection to a lower end face of the carrying plate 21, each spring element 23 can be connected to the first guide strips 22. This reinforces a connection between the spring elements 23 and the carrying plate 21 and, in the case of suitably realized web profiles of the spring elements 23, provides the spring elements 23 with a remaining degree of freedom about an axis which is perpendicular to the rear surface 29 of the carrying plate 21. The spring elements 23, in particular the second engagement surfaces 24 realized on the spring elements 23, are consequently moved substantially in a plane parallel to the rear surface 29 of the carrying plate 21.

(39) As shown in a further multi-part embodiment of a sliding element 2 in FIG. 23 and FIG. 24, a guide profile, which is displaceable to the side in a horizontally extending guide rail of the carrying plate 21, 21a, can be integrally formed on the carrying element 26, 26a. Consequently, it is not only possible to adapt the position of the carrying element 26 in a vertical manner, but a horizontal adjustment option is also made possible for the carrying element 26. Interacting latching elements on the guide profile of the carrying element 26, 26a and on the guide rail of the carrying plate 21, 21a can define multiple latching positions of the carrying element 26a. A central starting position, which can then be corrected to the left or to the right as required, can be provided for example.

(40) The blocking element 3 shown in FIG. 9 to FIG. 12 comprises a cuboid-like basic body 32 with six sides. A gripping plate 31 is integrally formed on the front side of the basic body 32, the basic body 32 is connected to a rear plate 33 on a rear side which is located opposite the gripping plate 31. The rear plate 33 comprises a flat rear surface 34. A structured surface for increasing the grip or a raised marking can be provided on a front surface of the gripping plate 31. As can be seen in the top view in FIG. 10, the surfaces of the gripping plate 31 and of the rear plate 33, which face one another, carry concave or convex latching elements 35 which are operatively connected to the latching elements 28 in the guide groove 27 of the sliding element 2.

(41) FIG. 13 and FIG. 14 show a sliding element 2 with a blocking element 3 installed therein. The blocking element 3 is guided between the spring webs of the sliding element 2 and is shown in a first release position which allows a movement of the second engagement surfaces 24 with respect to one another. The wall thickness of the rear plate 33 of the blocking element 3 corresponds to the height of the guide grooves 27, located in the spring elements 23, on the sliding element 2. The rear surface 24 of the blocking element 3 lies plane-parallel to the rear surface 29 of the carrying plate 21 of the sliding element 2. As shown in FIG. 14, the guide grooves 27 extend in the vertical direction parallel to the outer side edges of the guide strips 22, 25 from the rear surface 29 of the carrying plate 21 to a stop which is formed by the second guide strips 25 which are pulled inward at the end.

(42) FIG. 15 shows a retaining device 10 having a carrying element 26, which is vertically adjustable therein, is able to be guided in the base plate 1 as part of the sliding element 2 and fixed by the blocking element 3.

(43) The sliding element 2 can be displaced relative to the base plate 1. The connecting web 19, which connects the front walls 15 together in the region of a lower edge of the base plate 1, serves as a lower stop of the first guide channel 61 for the sliding element 2, reinforces the front walls 15 and serves as a surface for the marking for the fastening device 100.

(44) FIG. 16 shows an alternative embodiment of a fastening device 100 according to the invention. Compared to the preceding realizations, the base plate 1 is wider such that the rear surface 11 comprises a larger adhesion surface. In addition, the carrying element 26 is realized as a threaded bolt. As a result of a nut (not shown), an object can consequently be fastened on the wall by means of a screw connection without a bore in the wall and the insertion of a dowel and a screw being necessary for this purpose.

(45) FIG. 17 and FIG. 18 show a sectional view, from which the guiding of the approximately H-shaped blocking element 3 between the L-shaped profiled spring elements 23 is visible. The gripping plate 31 of the blocking element 3 is in front of the spring element 23 and in front of the front surface of the front wall 15. The guide strips 25, which are integrally formed on the ends of the spring elements 23, are guided between the front surface 12 of the base 20 and the inside surface of the front wall 15. This consequently ensures that the second engagement surfaces 24, connected thereto, are guided inside the first engagement surfaces 16. The sliding element 2 is prevented from tilting as a result of the engagement of the guide strips 25 of the sliding element 2 in the gap between the front walls 15 and the base 20. In addition, the sliding element 2 can be prevented from being able to fall forward out of the first guide channel 61 under load as the front walls 15 delimit the movement of the sliding element 2 in the direction away from the base 20.

(46) FIG. 19 shows a fastening device 100 which is fastenable on a wall with two adhesive strips 45 which are effective on two sides and can be pulled undone. The adhesive strips 45, which are effective on two sides, each have two sticky main surfaces 44 which are located opposite one another. Said sticky main surfaces comprise on oppositely situated end portions a region which is not provided with an adhesive and is realized as a tab 43. This can be achieved, for example, by a foil covering when the adhesive is applied. The surface area of said tabs 43, in a preferred manner, is between 2 cm.sup.2 and 4 cm.sup.2 in order to provide sufficient gripping surface between the tip of a thumb and an index finger. The tab should, however, not take up any more than 40% of the entire main surface 44. The two main surfaces 44 of each adhesive strip 45 are usually covered by protective foils 41, 42. For fastening the retaining body 10 on a wall, first of all the wall-side first protective foil 41 is removed from each adhesive strip 45 and the two adhesive strips 45 are bonded to the wall inside a region which corresponds to the rear surface 11 of the base plate 1. Once the second protective foil 42 has been removed, the retaining device 10 is pressed onto the adhesive strips 45. As a result of the positioning notches 17, 57 on the oppositely situated outside edges of the retaining device 10, said retaining device can be aligned to a reference line or using a spirit level. In particular when bonding on rough substrates, such as woodchip wallpaper or plastered walls, it is desirable, in view of a maximized holding performance, when the retaining device 10 is pressed several times at different positions of the front walls 15, 55 with a fingertip of a human hand. This increases the surface moistened by the adhesive surfaces between the main surfaces 44 of the adhesive strip 45 and a substrate. In order to support the pressing, the front walls 15, 55 are divided into four pressing surfaces 53, 54, 58, 60 by means of raised reinforcing ribs.

(47) Once the retaining body 10 has been fastened, it is possible to adjust the height of the carrying element 26 retrospectively. To this end, the blocking element 3, guided in the sliding element 2, is pushed upward against the force of gravity and latches there in the first release position. The sliding element 2 can then be displaced in the vertical guide channel of the base plate 51. In this case, the second engagement surfaces 24, which are integrally formed at the end of the spring elements 23 of the sliding element 2, are moved inward intermittently and slide over the tooth flanks of the first engagement surfaces 16, 56. Once the desired height position of the carrying element 26 is found, the blocking element 3 is moved downward in the direction of gravity into the second blocking position, as shown in FIG. 20. The blocking element 3 is also held in said position as a result of gravity or gravitational force. In addition, it can latch in the second blocking position as a result of the latching elements 28 on the spring elements 23 of the sliding element 2 and on the blocking element 3. The blocking element 3 now prevents the spring elements 23 from deflecting inward such that the second engagement surfaces 24 on the sliding element 2 engage with the first engagement surfaces 16, 56 on the base plate 1, 51.

(48) The retaining body 10 can also be installed in this sense on inclined walls as long as another sufficient weight acts on the blocking element 3 in the direction of the second guide channel 62. On a wall which is inclined by 45 in relation to the vertical, effort required in order to move the blocking element 3 out of the blocking position along said guide channel would be reduced by approximately 29% in a parallel second guide channel 62.

(49) The engagement of the second engagement surfaces 24 of the sliding element 2 in the first engagement surfaces 16, 56 of the base plate 1, 51 can be reinforced by an additional clamping action. It is thus possible to design the spring elements 23 of the sliding element 2 in a V-shaped manner such that the inside surfaces of the spring elements 23 move closer to one another in the direction of the free end of the spring elements 23 and thus a displacement of the blocking element 3 downward urges the second engagement surfaces 24 into the first engagement surfaces 16, 56. In this case, the width of the blocking element 3 shown in FIG. 11 on the basic body 32 is to be chosen to be greater than the maximum distance between the inside surfaces of the spring elements 23 which face one another. As an alternative to this, the first engagement surfaces 16, 56 or the second engagement surfaces 24 can be realized so as to be elastically compressible.

(50) The displacement of the blocking element 3 and the displacement of the sliding element 2 are effected by a force which is exerted by a human hand. In this case, one objective is that the force vectors that are active in this case do not result in additional tensile normal stresses in the adhesion of the retaining device 10 as this can weaken the adhesion as a result of a peeling load. Specifically, the sliding element 2 being locked or unlocked by a tensile force would, in particular, be disadvantageous. A torsional force, which would occur when using an eccentric blocking element 3, is also unfavorable. Consequently, all displaceable elements are designed such that they can only be displaced and moved in planes which lie parallel to the rear wall 11 of the retaining device 10, that is to say parallel to the adhesion surface, and do not effect torsional forces during displacement. In this case, when the moving parts, that is to say of the sliding element 2 and/or of the blocking element 3, are displaced by the hand of a user, a translatory movement which also runs parallel to the adhesive surface is carried out.

(51) Only force vectors which load the adhesion normally to the adhesive surface with pressure in a non-critical manner or run parallel to the adhesive surface without pronounced stress peaks are consequently necessary for displacing the blocking element 3 or the sliding element 2.

(52) As shown in FIG. 21 and FIG. 22, the second guide channel 62 for the blocking element 3 lies inside the first guide channel 61 for the sliding element 2. A space-saving design with a low installation height is, consequently, possible.

(53) FIG. 25 shows a further sliding element 2 of a fastening device 100 according to the invention. In this case, the two spring elements 23 form a second guide channel 62 which tapers conically in the direction of the free ends of the sliding element 2 in the non-loaded state, i.e. in the release position. As a result of displacing the blocking element 3 in the direction of the free ends of the spring elements 23, the spring elements 23 are each deformed in the outward direction such that the spring elements 23 are aligned in a largely parallel manner at least in the lower end position of the blocking element 3, that is to say in the blocking position.

(54) A production material for the retaining body of a fastening device 100 according to the invention has to be selected with consideration to a plurality of factors and to the site of application. In particular, the production material should be compatible with the adhesive composition of the adhesive used for installation, in particular of the adhesive strip 45 which is effective on two sides, and should adhere thereto in a reliable manner. In moist surroundings, the water absorbency and water resistance of the material can be a limiting factor. The material used should also withstand further environmental influences, such as UV radiation or ozone and exhaust gas pollution, for a suitable time without its material characteristics deteriorating in a substantial manner.

(55) A material which is compatible with adhesives strips which are based on styrene compositions with industry-standard adhesive resins and further additives is polystyrene. The disadvantageous tendency to stress cracking can be reduced by using special qualities, such as high impact polystyrene (HIPS), such as, for example, polystyrene 432B. As an alternative to this, it is possible to use (glass) fiber-reinforced polystyrene grades, both syndiotactic polystyrene and normal polystyrene being able to be used. In a preferred manner, the (glass) fiber proportion is between 10% and 50%, in a particularly preferred manner between 20% and 40%, of the filler content such as, for example, in the case of the syndiotactic type Schulatec PS-S-GF 40. Determination of the filler content of reinforcing fibers can be found in DIN EN ISO 11667. Styrene acrylonitrile (SAN), acrylonitrile-styrene-acrylate (ASA), acrylonitrile-butadiene-styrene (ABS) and (glass) fiber-reinforced acrylonitrile-styrene-acrylate are also suitable as production materials. As an alternative to this, carbon fiber-reinforced plastics materials, in particular carbon fiber-reinforced epoxy resins or carbon fiber-reinforced polyether ether ketone (PEEK), can also be used. In addition, crystalline or amorphous metals, steel, aluminum or titanium alloys, which can be used as production material for the components 1, 2, 3 of the retaining body 10, are suitable for special applications.

(56) According to a first embodiment, the invention relates to a fastening device (100) having at least one positionable carrying element (26), including: a base plate (1) with a largely flat rear surface (11) and a front surface (12) which is situated opposite the rear surface (11), wherein a first guide channel (61) is realized on the front surface (12), wherein the guide channel (61) is delimited by side walls (14), wherein engagement surfaces (16) are realized at least in portions on at least one of the side walls (14), wherein a sliding element (2), which is displaceable along the guide channel (61), is arranged in the guide channel (61), wherein the carrying element (26) is arranged on the sliding element (2), and wherein two spring elements (23), which can engage with the engagement surfaces (16) of the guide channel (61) in a blocking position, are realized on the sliding element (2), characterized in that a movable blocking element (3), which fixes the spring elements (23) at least in the blocking position, is provided on the sliding element (2).

(57) According to a second embodiment, the invention relates to a fastening device (100) as claimed in the first embodiment, characterized in that in a release position of the blocking element (3), the spring elements (23) are not engaged with the engagement surfaces (16), wherein the blocking element (3) fixes the spring elements (23) also in the release position.

(58) According to a third embodiment, the invention relates to a fastening device (100) as claimed in the first or the second embodiment, characterized in that the two spring elements (23) realize a second guide duct (62), wherein the blocking element (3) is reversibly displaceable along the second guide duct (62).

(59) According to a fourth embodiment, the invention relates to a fastening device (100) as claimed in the third embodiment, characterized in that the blocking element (3) in a first release position in the second guide duct (62) enables a displacement of the sliding element (2) along the first guide duct (61) and the blocking element (3) in a second blocking position in the second guide duct (62) suppresses a displacement of the sliding element (2) along the first guide duct (61).

(60) According to a fifth embodiment, the invention relates to a fastening device (100) as claimed in the fourth embodiment, characterized in that a displacement of the blocking element (3) from the second blocking position into the first release position is effected against the force of gravity.

(61) According to a sixth embodiment, the invention relates to a fastening device (100) as claimed in the third to fifth embodiment, characterized in that the second guide duct (62) runs completely inside the first guide duct (61).

(62) According to a seventh embodiment, the invention relates to a fastening device (100) as claimed in the first to sixth embodiment, characterized in that the first guide duct (61) is angled at a maximum of 45 to the direction of gravity and in a preferred manner runs parallel to the direction of gravity.

(63) According to an eighth embodiment, the invention relates to a fastening device (100) as claimed in the first to seventh embodiment, characterized in that the engagement surfaces (16) are realized on both sides in the side walls (14) of the first guide duct (61).

(64) According to a ninth embodiment, the invention relates to a fastening device (100) as claimed in the first to eighth embodiment, characterized in that the first guide duct (61) is closed or closable by a connecting web (19) at one end, in a preferred manner at the lower end in the direction of the gravity.

(65) According to a tenth embodiment, the invention relates to a fastening device (100) as claimed in the first to ninth embodiment, characterized in that guide grooves (27) and latching elements (28) for the blocking element (3) are provided on the sliding element (2).

(66) According to an eleventh embodiment, the invention relates to a fastening device (100) as claimed in the first to tenth embodiment, characterized in that the sliding element (2) comprises a carrying plate (21) with a horizontal groove which runs perpendicular to the first guide duct (61), wherein the carrying element (26) is displaceably mounted in the horizontally extending groove.

(67) According to a twelfth embodiment, the invention relates to a fastening device (100) as claimed in the first to eleventh embodiment, characterized in that on the free ends of the spring elements (23), the sliding element (2) comprises second engagement surfaces (24) which can be operatively connected to the first engagement surfaces (16), in particular can latch in the first engagement surfaces (16).

(68) According to a thirteenth embodiment, the invention relates to a fastening device (100) as claimed in the first to twelfth embodiment, characterized in that guide strips (22, 25), by way of which the sliding element (2) is guided displaceably in the base plate (1), are realized on the spring elements (23).

(69) According to a fourteenth embodiment, the invention relates to a fastening device (100) as claimed in the thirteenth embodiment, characterized in that the guide strips (22, 25) are guided between a base (20), the base plate (1) and the front walls (15) of the base plate (1).

(70) According to a fifteenth embodiment, the invention relates to a fastening device (100) as claimed in the first to fourteenth embodiment, characterized in that pressing surfaces (53, 54, 58, 60) are provided on the base plate (1) for applying an installing force when bonding the base plate (1) to a surface.

(71) According to a sixteenth embodiment, the invention relates to a fastening device (100) as claimed in the first to fifteenth embodiment, characterized in that the fastening device (100) includes fastening means (4), in particular an adhesive strip (45) which is effective on two sides, for fixing on a surface, in particular of a vertical wall.

(72) According to a seventeenth embodiment, the invention relates to a fastening device (100) as claimed in the sixteenth embodiment, characterized in that the fastening means (4), in particular the adhesive strip (45) which is effective on two sides, are detachable from the surface in a residue-free and damage-free manner.

(73) According to an eighteenth embodiment, the invention relates to a fastening device (100) as claimed in the first to seventeenth embodiment, characterized in that the second guide duct (62) tapers conically in the release position in the direction of the free ends of the spring elements (23).

LIST OF REFERENCES

(74) 1 Base plate 2 Sliding element 3 Blocking element 4 Fastening means 11 Rear surface 12 Front surface 14 Side wall 15 Front wall 16 First engagement surface 19 Connecting web 20 Base 21 Carrying plate 22 Guide strip 23 Spring element 24 Second engagement surface 25 Guide strip 26 Carrying element 27 Guide groove 28 Latching element 45 Adhesive strip 53 Pressing surface 54 Pressing surface 58 Pressing surface 60 Pressing surface 61 First guide channel 62 Second guide channel 100 Fastening device