Holding device for tool-free installation of a finishing strip

Abstract

Holding device (56) for tool-free installation of a finishing strip (10) in the area of ​​a surface of a wall (58) and a floor covering (16), wherein an air gap (44) with a gap base (52) is formed between the wall (58) and a side surface (50) of the floor covering (16), wherein the holding device (56) can be installed without tools after the floor covering (16) has been laid and the finishing strip (10) can then be mounted on the holding device (56) without tools, wherein the holding device (56) comprises a mounting shoe (48) designed as a flat part, which extends from a lower outer edge located at the lower end of a lower leg (54) to an upper end with a mounting lip (46), wherein the mounting shoe (48) is rotatably positionable with its lower outer edge in a wall corner (30) formed by the surface of the wall (58) and the gap base (52) and acting as a pivot point, wherein the upper end of the mounting shoe (48) rests elastically against the surface of the wall (58) with an outer edge formed by the mounting lip (46) and the mounting shoe (48), and wherein the pressure force (34) of the mounting shoe (48) there can be generated by a compression spring (28) or bending spring (18) arranged between the mounting shoe (48) and the side surface (50) of the floor covering (16).

Description

TECHNICAL FIELD

[0001] The present invention relates to a holding device for tool-free assembly for a finishing strip. STATE OF THE ART

[0002] Devices for tool-free assembly of everyday objects are trending. Such joining techniques have become particularly popular in the trades and DIY sectors. There are three main reasons for this: • Tool-based joining techniques, such as screwing, nailing and gluing, require manual skills and are time-consuming. • DIY enthusiasts are often overwhelmed by traditional joining techniques and usually do not have the professional tools. • Tool-free joining techniques generally allow non-destructive disassembly.

[0003] It was only a matter of time before this installation philosophy also became established for finishing strips for floors in residential and commercial construction. The relevant literature provides the following state of the art: EP 0 900 897 B1 shows a plug-in system in which a U-profile is first plugged onto a floor panel without the need for tools, before the finishing strip is secured in a toothed insertion groove of the U-profile. EP 1 233 119 A1 is based on this: Here, too, a holding element is plugged laterally onto a floor panel before the panel is laid and the cover strip is finally installed. What both designs have in common is that they enclose the floor covering laterally in a mouth-like manner. The purpose of this is to ensure that the holding devices find purchase on the floor covering if the finishing strip is accidentally pushed away from the wall. However, this requires coordination between the mouth width and the floor thickness. This makes both concepts inflexible.DE 297 19 494 U1, EP 0 560 748 A1, and DE 20 2016 102 498 U1 address this with concepts that are essentially independent of the floor thickness. This is achieved by arranging one wing of the holding device essentially flush below the floor to securely attach the holding device to the floor.

[0004] EP 2 292 872 A1, DE 101 61 099 A1, DE 93 01 324 U1, DE 20 2009 019 070 U1 and BE 1 015 275 A3 disclose further holding devices for end strips. DISADVANTAGES OF THE STATE OF THE ART

[0005] What the cited documents have in common is that they describe designs that allow for tool-free joining of the finishing strip, but require that the necessary retaining devices be attached to and / or beneath the floor before the finishing strip can be installed. While this can be considered when laying new floors, it completely excludes the renovation sector. Furthermore, it is generally more convenient to perform previous work steps independently of subsequent ones. TECHNICAL TASK

[0006] The present invention is therefore based on the object of overcoming the disadvantages described and of creating a completely tool-free and also highly flexible joining method including the associated holding device, which is independent of the time of laying floor covering slabs, panels or boards. TECHNICAL SOLUTION AND ADVANTAGES OF THE INVENTION

[0007] This object is achieved according to the invention by the holding device according to claim 1.

[0008] The key to this solution lies in the utilization of the mandatory air gap between the side surface of the floor covering and the wall surface, with both boundary surfaces facing each other and running essentially vertically. Both surfaces are used for the installation of the inventive holding device in such a way that it can be mounted in said air gap without the need for tools. This applies both to the holding device itself and the subsequent installation of the end strip onto the inventive holding device. In addition to its application for floors, the invention is equally suitable for stairs, platforms, and formwork.

[0009] Advantageous embodiments of the invention emerge from the subclaims and the following description of preferred embodiments of the subject matter according to the invention. EXAMPLES OF IMPLEMENTATION

[0010] The embodiments of the invention are explained with reference to Fig. 1 to 6. They show: Fig. 1: the floor, the building wall, the floor covering and the holding device according to the invention; Fig. 2: the Fig. 1 arrangement shown with attached end strip; Fig. 3: the Fig. 1 and Fig. 2 shows a holding device as a single part in another embodiment; Fig. 4: two embodiments that allow commercially available screw solutions with the permanently attached holding device to be mounted without tools (not according to the invention); Fig. 5: the Fig. 4 illustrated arrangements with releasably attached holding devices according to the invention; and Fig. 6: the Fig. 3 shown holding device with holding feet for resting on the wall-side outer edge of the floor covering.

[0011] A typical arrangement of a construction situation consisting of building materials and a holding device 56 according to the invention mounted therein without tools is shown in Fig. 1. This is formed from a generally plastered wall 58, a generally horizontal floor 20, which usually consists of screed, and a floor covering 16 laid on this. Between a side surface 50 of the floor covering 16 and the wall surface 58 there is usually an air gap 44 with a gap base 52. According to the invention, this is used for the tool-free assembly of a holding device 56 by placing the holding device 56, which consists of a mounting shoe 48 having a mounting lip 46, a lower leg 54 and a compression spring 28 and is preferably made from a flat sheet metal section by cutting and bending, in the air gap 44 in such a way that it is supported on the wall side with its two free ends and the reaction force is applied by a compression spring 28, which introduces its force 32 essentially perpendicularly into the side surface 50 in the uppermost region thereof.

[0012] The type of installation and the interplay of forces generally result in the lower leg 54 of the mounting shoe 48 positioning itself in the wall corner 30 and there, by means of the spring force 32, generating a horizontal compressive force 36 towards the wall 58, as well as a second force 34 in the area of ​​the mounting lip 46. This creates a spring-loaded mounting shoe 48 that can be rotated about the pivot point 30 against the pressure of the compression spring 28. This mechanically makes it a so-called one-armed lever. Its contact force on the wall 34 should always be maximum. This is achieved by keeping the force pair 36 and 32 as far apart as possible, since force pairs cause torques and - in practical terms - with a higher floor covering 16, cause a higher contact force 34 of the mounting shoe 48 of the holding device 56, provided that the position of the compression spring 28 in the uppermost area of ​​the side surface 50 facilitates this.To ensure this, the compression spring 28 is mounted on the mounting shoe 48 in a manner not shown here that is height-adjustable. Alternatively, the lower leg 54 is designed to be telescopically extendable.

[0013] The tool-free mounting device 56 serves for a finishing strip 10 which can also be mounted without tools. This can be a one-piece longitudinal profile 40 or Fig. 2 a composite workpiece consisting, for example, of a wooden profile 40 with inserted sheet metal tabs 22. In each case, an undercut in the end strip 10 is used to attach it downwards onto the holding device 56, parallel to the floor and perpendicular to the wall, until it reaches a stop against the floor covering 16. For convenient joining, the sheet metal tab 22 is provided at the end with a sheet metal tongue 24, which engages behind the mounting lip 46 of the holding device 56 at the start of joining.

[0014] Fig. Figure 3 shows the holding device 56 according to the invention as a one-piece stamped and bent part. Instead of the helical compression spring 28, a mirror-symmetrical and double-armed spiral spring 18 is used here, which is accommodated by the air gap 44 and is supported with its two contact points 12 on the (upper) side surface 50 of the floor covering 16. The assembly of the end strip 10 via the assembly lip 46 of the assembly shoe 48 of the holding device 56 is the same as in Fig. 2. However, two claws 42 are noticeable at the end of the lower leg 54. These are intended to engage the inner edge in the area of ​​the pivot point 30 in a rotation axis of the mounting shoe 48.

[0015] Fig. 4 (not according to the invention) shows the application of a holding device 56 to commercially available receptacles for end strips 10, shown in the upper part of the image. As the screw holes of the receptacles—on the left as an injection-molded part, on the right as a stamped and bent part—indicate, they are intended for tool-based assembly. In the lower part of the image, they are provided with holding devices 56 according to the invention, so that they can now be assembled completely without tools and, on the other hand, allow the continued use of the existing end strips 10. The bending spring 18 of the holding device 56 is riveted on the left and spot-welded (for example) on the right. For better grip on the side surface 50 of the floor covering 16, the free ends of the leaf springs 18 are provided with contact teeth 14.

[0016] The Fig. 4 The assembly shown bottom left offers the possibility of using the rivet points 60 as pivot points for a leaf spring 18 which is split in the mirror axis of the holding device 56, in order to then adjust the two separate arms to maximize the distance from claws 42 to contact teeth 14, i.e. distance from the point of the pressure force to the wall 36 to the point of the spring force 32.

[0017] In Fig. 5 are the two series parts from Fig. 4 ( Fig. 5 above) are provided with a respective opening 26 ( Fig. 5 middle), that they can be mounted on the holding device 56 without any factory joining step - thus, logistically friendly, only on the construction site Fig. 3 can be attached ( Fig. 5 below).

[0018] Fig. 6 shows a holding device 56 which, in addition to the shape according to Fig.3 is provided with holding feet 38 which, when the holding device 56 is joined without tools, provide stabilizing support on the outer edge formed by the side surface 50 and the tread surface of the floor covering 16. List of reference symbols 10 end strip 12 Investment point 14 primordial teeth 16 Flooring 18 spiral spring 20 floor 22 sheet metal tab 24 sheet metal tongue 26 Breakthrough 28 compression spring 30 Pivot point / wall corner 32 spring force 34 Pressure force on mounting shoe 36 Pressure force to the wall 38 support feet 40 Longitudinal profile, e.g. made of wood 42 claws 44 Air gap 46 Mounting lip 48 mounting shoe 50 side area 52 split base 54 lower legs 56 Holding device 58 Wall 60 rivet points

Claims

[1] Holding device (56) for tool-free installation of a finishing strip (10) in the area of ​​a surface of a wall (58) and a floor covering (16), wherein an air gap (44) with a gap base (52) is formed between the wall (58) and a side surface (50) of the floor covering (16), wherein the holding device (56) can be installed without tools after the floor covering (16) has been laid and the finishing strip (10) can then be mounted on the holding device (56) without tools, wherein the holding device (56) comprises a mounting shoe (48) designed as a flat part, which extends from a lower outer edge located at the lower end of a lower leg (54) to an upper end with a mounting lip (46), wherein the mounting shoe (48) is rotatably positionable with its lower outer edge in a wall corner (30) formed by the surface of the wall (58) and the gap base (52) and acting as a pivot point, wherein the upper end of the mounting shoe (48) rests elastically against the surface of the wall (58) with an outer edge formed by the mounting lip (46) and the mounting shoe (48), and wherein the pressure force (34) of the mounting shoe (48) there can be generated by a compression spring (28) or bending spring (18) arranged between the mounting shoe (48) and the side surface (50) of the floor covering (16). [2] Holding device (56) according to claim 1 with an end strip (10), characterized bythat the end strip (10) provided with an undercut, which is either one-piece or has a sheet metal tab (22) with a bevelled sheet metal tongue (24), when plugged onto the holding device (56), can engage behind the mounting lip (46) of the mounting shoe (48) with its undercut and can pivot the latter elastically about the pivot point (30). [3] Holding device (56) according to claim 1, characterized by that the mounting shoe (48) is made as a stamped and bent part from sheet metal. [4] Holding device (56) according to claim 1, characterized by that the mounting shoe (48) is designed as an injection-molded or die-cast part. [5] Holding device (56) according to one of claims 1, 3 or 4, characterized by that the holding device (56) is designed as a composite component. [6] Holding device (56) according to claim 1 or 2, characterized by that the mounting shoe (48) forms a leaf spring-like bending spring (18). [7] Holding device (56) according to claim 1, characterized by that the bending spring (18) is designed as a substantially mirror-symmetrical, double-armed leaf spring. [8] Holding device (56) according to claim 7, characterized by that the ends of the two arms of the bending spring (18) which rest with their contact points (12) on the side surface (50) are provided with preferably bevelled holding feet (38). [9] Holding device (56) according to claim 1, characterized by that the lower end of the lower leg (54) is provided with claws (42). [10] Holding device (56) according to claim 8, characterized by that the contact points (12) are equipped with contact teeth (14) resting on the side surface (50). [11] Holding device (56) according to claim 9 or 10, characterized bythat the vertical distance between the lower edge of the lower leg (54) or claws (42) located in the area of ​​the pivot point (30) in the installed state and the contact points (12) or their contact teeth (14) of the bending spring(s) (18) is adjustable and can thus be adapted to the height of the floor covering (16).

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