EP3822430A1 - Finishing strip - Google Patents

Abstract

The present invention relates to an end strip (2) for bridging a connection joint (1) formed between a floor covering (3) and a wall surface (18), comprising an at least two-legged longitudinal profile (8) with a floor leg (4) lying essentially horizontally on the floor covering ) and one of the side surfaces of the floor covering opposite, essentially perpendicular to the floor covering extending wall leg (19), as well as spring elements (5) arranged on the longitudinal profile. The wall limb protrudes into the connection joint and along the wall limb of the longitudinal profile a plurality of individual, support-like supporting spring elements are arranged in a row, which rest on the side surface (13) of the floor covering and thus press the end strip onto the wall surface in a permanently elastic and positionally stable manner.

Description

Subject of the invention

The invention relates to an end strip for bridging a connection joint formed between a floor covering and a wall surface, comprising an at least two-legged longitudinal profile with a floor leg lying essentially horizontally on the floor covering and a wall leg lying essentially perpendicular to the floor covering and lying opposite the side surface of the floor covering, as well as on spring elements arranged in the longitudinal profile.

State of the art and disadvantages of the state of the art

The transition from floor coverings to wall surfaces, steps or (floor-to-ceiling) window frames is characterized by undesired connection joints, gaps or grooves that are traditionally covered with a wide variety of end strips. The most widespread is the classic baseboard, which rests with one side surface on the surface of the floor covering and is fastened with its base to the wall surface - mostly by means of nails or screws. This type of construction takes two product properties into account: On the one hand, the connection joint (often finger width) between the floor covering and the wall surface is covered, and on the other hand, the skirting board, which is usually arranged "upright", serves as protection against ramming and chafing, e.g. for floor care.

In modern and trendy, purist living landscapes, the classic skirting board is increasingly being dispensed with in order not to disturb the minimalist and flush (architectural) design with protruding elements and visible edges.

For this purpose, the floor covering is usually firmly glued to the sub-floor in order to be able to realize a smaller connection joint to the wall. This is then filled in with acrylic or silicone at the end of the floor laying work in order to achieve the cleanest possible transition from floor covering to wall surface. The disadvantage here is on the one hand the fact that the synthetic filler can evaporate pollutants and plasticizers in the living environment, and on the other hand it loses its elasticity and durability over time. In addition, due to the thermal or mechanical oscillation (shrinkage and expansion) of the floor covering, cracking or a new gap can be expected in silicone or acrylic joints. The static charging of rubber-like materials is also disadvantageous, since dust elements adhere to the electrostatically charged silicone or acrylic joints and this then leads to the formation of smears when cleaning.

Skirting boards made of elastic plastics (rubber) It. U.S. 2,230,688 A have also not caught on because of this charging effect. In addition, the relatively soft mix of materials creates unsightly dents and creases after installation and assembly. In this case, plasticizers also shrink from the material over time, which leads to a significant reduction in the elastic spring effect. Over time, these extruded rubber profiles can be removed from the connection joint in an almost completely relaxed state without great resistance or can even wander out unintentionally.

For this reason, the industrial focus was placed on harder material mixtures or (light metal) alloys: a skirting board follows the trend in the living area towards more pleasing functional elements US 2008/0005993 A1 Invoice. This is designed as a longitudinal profile and is anchored in the connection joint described above by means of compression springs that project through the longitudinal profile in sections. The end profile is to be reworked using holes for compression springs. The compression springs to be used on site require time-consuming and inconvenient assembly. The variant described can therefore be installed tool-bound and can only be removed with difficulty for renovation purposes.

Also in the EP 2 292 872 A1 a component, which is obviously designed as a plastic longitudinal profile, is anchored in the connection joint, dispensing with compression springs according to the design of the US 2008/0005993 A1 . For the sake of completeness, it should be mentioned that the cited EP document also obviously discloses retaining clips designed as sheet metal stamped and bent parts, which can be anchored as piece goods at a certain distance in said air gap and serve there to accommodate, for example, wooden skirting boards. That in the EP 2 292 872 A1 The end profile described has the functional defect that its top rests against the wall and its lower, rubber-elastic "finger" is supported with its "fingertip" of the code number 10 or 15 on the side surface of the floor covering (code number 2). The resulting and in Fig. 4 A pair of compressive forces marked with two horizontal arrows generates a torque which, in particular, allows narrow longitudinal profiles, which for aesthetic reasons are only insignificantly wider than said air gap, to move vertically upwards on the wall. These inclined positions of the end strips, which occur in the event of floor vibrations via so-called "stick-slip" movements, are unacceptable.

In order to prevent the end strip from slipping out due to the "stick-slip" movement, It. GB 2 450 124 A an adhesive layer 40 - double-sided adhesive tape - attached to the wall leg of the end strip profile, which holds the end strip on the wall surface. Since dust and dirt are to be expected on construction sites - naturally also on the wall surface - reliable adhesion cannot be guaranteed. In the case of curved wall surfaces, a relatively high normal stress is also introduced into the entire strip construction, which, due to the wall, acts unevenly as a peeling force on the adhesive layer and thus causes it to be unintentionally detached. This leads to the fact that the end strip lifts off from the wall surface at slightly curved points and this leads to the formation of cracks. The elastic lip 43 tries to conceal this flaw of the invention. A high installation effort is to be expected when assembling the end strip. In the event of assembly errors or Dismantling can be the subject of the invention GB 2 450 124 A cannot be removed non-destructively.

In the WO 2014/040102 A1 a mounting clip is clipped into the connection joint before the actual assembly of the end strip. A double-sided adhesive tape 12 is attached to this on the bottom leg 6. The end strip 8 is fixed in a shear-proof manner via this adhesive tape. A disadvantage here is the bulky cross section of the end strip, since the material thickness of the mounting element is added to the material thickness of the end strip. Due to the assembly with double-sided adhesive tape, a precise and conscientious installation process must be adhered to, which requires manual skill and is time-consuming. In the event of stresses or temperature fluctuations, indifferent shear forces on the adhesive layer can lead to the adhesive becoming detached over the long term and thus to failure of the entire cover system. The system consists of three components.

The prior art discloses, at least as a component of the "end strip / end profile" assembly, consistently special profiles that require custom-made products and are therefore disadvantageous in terms of procurement costs compared to standard profiles.

Object of the invention

The aim of the invention is to overcome the described disadvantages of the prior art and to create an end strip that can be used as universally as possible, which is simple in construction and inexpensive to manufacture and which ensures a function that is permanently stable and, above all, fatigue-free and non-aging.

This object is achieved according to the invention in the end strip of the type mentioned in that the wall limb protrudes into the connection joint and a plurality of individual, support-like supporting spring elements are arranged in series along the wall limb of the longitudinal profile which rest on the side surface of the floor covering in a supporting manner and thus press the end strip onto the wall surface in a permanently elastic and positionally stable manner.

The end strip according to the invention covers the connection joint discreetly and almost flush with the floor covering surface. Dimensional fluctuations in the distance between the wall surface and the side surface (front side) of the floor covering are elastically compensated for by the spring elements that can be attached or loosely inserted without tools, with the entire structure of the end strip being pressed permanently and in a stable position against the wall surface by these spring elements.

The longitudinal profile, which is preferably made of aluminum, steel, non-ferrous metal or plastic (e.g. bioplastic) is designed in cross-section in such a way that it has a wall limb that runs parallel to the wall surface (vertically) and a floor limb that runs parallel to the floor (horizontally).

Permanently elastic and fatigue-free spring elements are - before the actual assembly of the end strip (in the connection joint) - along the wall leg of the longitudinal profile at suitable intervals, "support point-like" and slidable, attachable, glued, clipped or clamped, without tools, or loosely positioned on the floor .

The spring elements are preferably designed as inexpensive, mirror-symmetrical or asymmetrical stamped and bent parts and, after their pre-assembly on the strip side or loosely positioned, are supported on or on the end strip during and after its final assembly, sliding against the side surface (end face) of the floor covering and thus press the end profile with permanent elasticity against the wall surface. This creates a non-positive and thus stable, tilt-proof arrangement of the end strip between the wall surface and the side surface of the floor covering. Dimensional fluctuations in the distance between the wall surface and the face of the floor covering are affected by the elastic spring elements, which are preferably designed as leaf springs, balanced.

The spring elements described as mirror-symmetrical - similar to a double arm - can also be designed with one arm.

The vertical side surface of the floor covering and the wall surface opposite to it form the connection joint with a horizontal boundary between them (e.g. floor screed), in which the end strip can be lowered.

The longitudinal profile is preferably manufactured with the same cross section over the length. It can be supplied as bar material or on a coil, cut to size on site and conveniently equipped with spring elements without tools. Then the assembly (end strip), consisting of the longitudinal profile and spring elements, is laid in the connection joint.

With said connection joint, hollow chambers are created after the subject of the invention has been laid, which can be used to lay electrical and / or optical lines. With the appropriate material transparency of the longitudinal profile, elegantly discreet floor lighting, running lights for emergencies, orientation for the visually impaired or optical signals of different colors and sequences can be achieved.

Embodiments

Fig. 1:

eine Querschnittsdarstellung der auf dem Bodenbelag bündig aufliegenden Abschlussleiste im eingebauten Zustand mit beaufschlagtem Federelement;

Fig. 2:

eine perspektivische Darstellung eines als z.B. stranggepresstes oder extrudiertes Winkelprofil ausgeführten Längsprofils mit längsverschieblichem Federelement vor und nach der Baugruppenmontage (im einbaufertigen Zustand);

Fig. 3:

eine perspektivische Darstellung eines als z.B. stranggepresstes oder extrudiertes T-Profil ausgeführten Längsprofils mit längsverschieblichem Federelement vor und nach der Baugruppenmontage (im einbaufertigen Zustand);

Fig. 4:

eine perspektivische Darstellung des Längsprofils aus Fig. 2 mit werkzeuglos einsetzbarem Federelement im losen und - hier durch elastisches Einclipsen - montierten Zustand;

Fig. 5:

eine perspektivische Darstellung einer aus z.B. durch Walzprofilieren oder Abkanten von Flachzeug oder Extrudieren erzeugtem Längsprofil mit quer zur Profillängsrichtung aufsteckbarem Federelement vor und nach der Baugruppenmontage (im einbaufertigen Zustand);

Fig. 6:

eine perspektivische Darstellung einer als z.B. stranggepresstes oder extrudiertes T-Profil ausgeführten Übergangsleiste mit längsverschieblichem Federelement vor und nach der Baugruppenmontage (im einbaufertigen Zustand); und

Fig. 7:

eine perspektivische Darstellung sowohl eines als symmetrisch als auch asymmetrisch für nahezu verschnittfreie Fertigung ausgelegten Federelementes.

Further features, details and advantages of the invention - which may also be relevant to the invention in combinations not explicitly mentioned - emerge from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

Fig. 1:

a cross-sectional view of the end strip lying flush on the floor covering in the installed state with the spring element acted on;

Fig. 2:

a perspective view of a longitudinal profile designed as an extruded or extruded angle profile with a longitudinally displaceable spring element before and after assembly assembly (in the ready-to-install state);

Fig. 3:

a perspective view of a longitudinal profile designed as an extruded or extruded T-profile with a longitudinally displaceable spring element before and after the module assembly (in the ready-to-install state);

Fig. 4:

a perspective view of the longitudinal profile Fig. 2 with spring element that can be used without tools in the loose and - here by means of elastic clipping - mounted state;

Fig. 5:

a perspective view of a longitudinal profile produced from, for example, roll profiling or bending of flat material or extrusion with a spring element that can be attached transversely to the longitudinal direction of the profile before and after the assembly (in the ready-to-install state);

Fig. 6:

a perspective view of a transition strip designed as, for example, an extruded or extruded T-profile with a longitudinally displaceable spring element before and after the module assembly (in the ready-to-install state); and

Fig. 7:

a perspective view of both a symmetrical and an asymmetrical spring element designed for almost waste-free production.

This in Fig. 1 Longitudinal profile 8, denoted by the end strip 2, with a joined spring element 5, preferably made of spring steel sheet, is embedded in a connection joint 1 which is formed vertically by the side surface / end surface 13 of the floor covering 3 and the wall surface 18 and horizontally by the horizontal boundary 6. The end strip 2 is supported in this connection joint 1 in such a way that it is fixed in a secure position in the connection joint 1.

On the end face 13 of the floor covering 3, the end strip 2 is supported with support point-like over the length of the profile 8 releasably mountable, longitudinally displaceable, permanently elastic spring elements 5 on the side face / end face 13 of the floor covering 3, which allow the dimensional fluctuations in the width of the connection joint 1 to be leaf spring elastic as a flexible arm balance. A thin floor leg 4 resting on the edge of the floor covering 3 ensures that, despite fluctuations in the width of the connection joint 1, this is completely and seamlessly covered, an almost flush transition of the floor covering 3 to the wall surface 18 is guaranteed.

A longitudinal rib 9 has a sound-absorbing effect with the lower edge of the longitudinal profile 8 due to its small contact surfaces on the wall surface 18 and thus reduces the transmission of footfall sound into the building structure.

Fig. 2 shows the longitudinal profile 8 with a loose spring element 5 at the top and with the spring element 5 pushed into the running rail 10 in the longitudinal direction of the profile 8 at the bottom. For this purpose, the longitudinal profile 8 faces each other on the side of the wall leg 19 facing the front or side surface 13 of the floor covering 3 pointing projections 17 which form said running rail 10 with the wall leg 19. In this, the middle segment 11 of the spring element 5 slides in a form-fitting and transversely stable manner in the longitudinal direction of the longitudinal profile 8.

Fig. 3 shows a longitudinal profile 8 with a vertical wall leg 19 which protrudes vertically upwards over the bottom leg 4 and thus from the angular profile of FIG Fig. 1 and 2 becomes a T-profile and that of the floor and Wall-formed inner edge protects mechanically and forms an aesthetically pleasing variant, in which no joining means are visible and also allows non-destructive dismantling if necessary.

Fig. 4 shows an angle profile, the running rail 10 of which is identical to that of Fig. 2 and 3 is, but the spring element 5 is designed in such a way that it can be mounted in any position regardless of its longitudinal position relative to the longitudinal profile 8. For this purpose, the middle segment 11 of the spring element 5 is provided with a resiliently snap-fit punched image 12 in the running rail 10, which fixes the spring element 5 in a stable position in the longitudinal profile 8, in particular against pivoting. In a similar design, another embodiment provides that instead of the running rail 10, a U-rail is used, in whose legs pointing towards one another the elastic middle segment 11 of the spring element 5 can be frictionally clamped.

Fig. 5 shows a longitudinal profile 8 with a standard cross-section. Of course this is also - analogous to Fig. 3 - Conceivable as a standard T-profile. In order to make such profile cross-sections of the invention accessible, a suitable spring element is required. To avoid the mechanical processing of the longitudinal profile 8 on the one hand and to avoid critical joining processes (e.g. gluing) on the other hand, the spring element 5 in the area of the middle segment 11 was equipped with a plug-in shoe 14 that can be attached to the downward-facing wall leg 19. Fig. 5 shows the longitudinal profile 8 with a loose and (pre-) assembled spring element 5.

In another embodiment, instead of the wall leg 19, the floor leg 4 is equipped with receptacles, such as the running rail 10, for joining the spring elements 5 without tools. It is also conceivable for the spring elements to be glued to the underside of the bottom leg 4.

In designs not shown graphically, the on-site mounted longitudinal profile 8 can have illuminated and / or non-illuminated functions on the profile section that protrudes above the bottom leg 4.

Also not shown graphically are designs in which said angle or T-profile serves as a receptacle for decorative or functional decorative or structural elements between the wall and the floor.

Fig. 6 shows a longitudinal profile 8 as a T-profile, which is not used between the wall and the floor, but as a so-called and literally applicable transition profile between two floors 3. Spring element / s 5 and longitudinal profile 8 form a transition strip 15. A vertical profile leg 16 protrudes into the connection joint between the two floors 3, while the horizontal profile leg 7 covers both floor edges. The joining techniques described above are the same, with the corresponding side or end face 13 of the second floor covering 3 being used here instead of the missing wall surface 18. The modular usability of the spring elements 5 shows the universal applicability of the invention.

Fig. 7 shows two punch-friendly, waste-free spring elements, each shown as a single-armed and double-armed component.

All of the features and advantages arising from the claims, the description and the drawings, including structural details, arrangements and process sequences, can be relevant to the invention both individually and in a wide variety of combinations.

List of reference symbols

1

Connection joint

2

End strip

3

Flooring

4th

Floor thigh

5

Spring element

6th

Horizontal limitation

7th

Horizontal profile leg

8th

Longitudinal profile

9

Longitudinal ribs

10

Running track

11

Middle segment

12th

Die cut

13th

Front face / side face

14th

Plug-in shoe

15th

Transition bar

16

Vertical profile leg

17th

head Start

18th

Wall surface

19th

Wall leg

Claims (11)

End strip (2) for bridging a connection joint (1) formed between a floor covering (3) and a wall surface (18), comprising an at least two-legged longitudinal profile (8) with a floor leg (4) lying essentially horizontally on the floor covering and one of the side surfaces (13) of the floor covering (3) opposite wall legs (19) running essentially perpendicular to the floor covering (3), as well as spring elements (5) arranged on the longitudinal profile (8),
characterized in that the wall limb (19) protrudes into the connection joint (1) and a plurality of individual spring elements (5) supporting support point-like are arranged in a row along the wall limb (19) of the longitudinal profile (8), which spring elements (5) are arranged on the side surface (13 ) rest on the floor covering (3) and thus press the end strip (2) onto the wall surface (18) in a permanently elastic and positionally stable manner. End strip (2) according to claim 1, characterized in that the spring elements (5) can be inserted longitudinally into the wall leg (19) of the longitudinal profile (8), or can be clipped, clamped, attached or loosely positioned transversely and in the manner of a support point. End strip (2) according to claim 1, characterized in that the spring elements (5) can be inserted lengthways into the bottom leg (4) of the longitudinal profile (8), or can be clipped, clamped, attached or loosely positioned transversely and in the manner of a support point. End strip (2) according to claim 1 or 2, characterized in that the side of the wall leg (19) facing the floor covering (3) is designed as a running rail (10) in which a central segment (11) of the spring element (5) transversely to the longitudinal direction of the longitudinal profile (8) positively fixed in position and longitudinally guided to this positively longitudinally displaceable. End strip (2) according to one of Claims 1, 2 or 4, characterized in that the side of the wall leg (19) facing the floor covering (3) is designed as a running rail (10) or U-rail into which a central segment (11) of the spring element (5) transversely to the longitudinal direction of the longitudinal profile (8) can be positively clipped or clamped. End strip (2) according to one of claims 1, 2 or 4, characterized in that on the wall leg (19) of the longitudinal profile (8) a central segment (11) of the spring element (5) designed as a plug-in shoe (14) transversely to the longitudinal direction of the longitudinal profile (8) can be attached in a form-fitting manner. End strip (2) according to one of Claims 1 to 8, characterized in that the wall limb (19) protrudes vertically over the floor limb (4). End strip according to one of claims 1 to 6, characterized in that a vertical profile leg (16) of a T-profile protrudes into the connection joint of two adjacent floor coverings (3) and has spring elements (5) which are located on the side surface (13) of one Support the floor covering (3) and press the vertical profile leg (16) with its opposite side against the side surface (13) of the other floor covering (3), the horizontal profile leg (7) covering the edges of both floor coverings (3). End strip (2) according to one of claims 1 to 8, characterized in that the end strip (2) consists only of the longitudinal profile (8) and the spring elements (5), which before On-site installation of the end strip (2) can be joined together without tools. End strip according to one of claims 1 to 8, characterized in that the end strip (2) consists only of the longitudinal profile (8) and the spring elements (5), the spring elements (5) loosely aligned in a row and positioned on the floor and during laying of the longitudinal profile (8) can be joined with this to form the end strip assembly (2). End strip (2) according to one of Claims 1 to 7, 9 and 10, characterized in that the longitudinal profile (8) is provided with at least one longitudinal rib (9) on the wall side.

Images