[0001] This invention concerns on the one hand a method for the forming of a baseboard or
finishing profile for flooring, comprising a wood-based carrier material, provided
with a decorative top layer having one or more resin-impregnated layers. On the other
hand, this invention concerns a baseboard or finishing profile for flooring.
[0002] This invention concerns in particular a baseboard or finishing profile manufactured
from a DPL, a DLP, a CPL or an HPL laminate. This laminate is often used as flooring
and can be of various kinds. Examples of such laminates are, among others, DPL (direct
pressure laminate), HPL (high pressure laminate), CPL (continuous pressure laminate),
LVT (luxury vinyl tiles), cushion vinyl (roll vinyl), WPC (wood plastic composite),
DLP (direct laminate printing) or a combination of the abovementioned laminates.
[0003] A DPL panel is made up of a bottom layer of plastic, usually melamine, a carrier
material, generally high-density fibreboard (HDF), on which a layer of printed paper
is provided (usually printed with an imitation wood structure), with a plastic top
layer, usually melamine reinforced with corundum or aluminium oxide. The top or wearing
layer of the cheaper products is thin, so that its lifetime is rather short.
[0004] A DLP panel has more or less the same construction as a DPL panel, but it lacks the
printed paper layer. In place of this, the HDF carrier sheet is directly imprinted
and then processed with a top layer. The carrier material can also be a WPC (wood
plastic composite) sheet or some other plastic sheet.
[0005] Besides the above two types, there are many other different products which can be
used. Thus, there is flooring which is laid in the form of planks on a base layer.
These planks are usually interconnected with each other by means of a snap connection.
Such planks are composed of a core which is made from MDF, HDF, PVC, PP or WPC (wood
plastic composite). The top side of these planks is provided with a decorative top
layer. This layer can contain one or more decorative layers and be covered by a scratchproof
top layer, and depending on the application the implementation, structure, and scratch
resistance can be different. Thus, the decorative top layer can be formed of a laminate
in the form of DPL (direct pressed laminate), CPL (continuous pressure laminate) or
HPL (high pressure laminate), DLP (a digitally printed layer). Decorative layers of
PVC, PP low density or scratchproof paper are possible and belong to the prior art.
[0006] Various baseboards or profiles are available for the finishing of these floorings.
Often, these baseboards or profiles are manufactured by providing a carrier profile
with a film layer by means of the familiar process of sheathing. The carrier material
of sheathed profiles often consists of MDF, HDF or PVC. The decorative film layers
are often PVC film or paper film on which a print is applied which matches the respective
flooring. For profiles such as transition profiles or adapting profiles a CPL film
is often used, due to its scratch resistance.
[0007] A first problem, however, is that such profiles or baseboards never fit the respective
flooring perfectly. The print or structure is almost never identical to the flooring.
In particular, this structure is not unimportant; many structures are "embossed in
register", which means that the structure runs synchronously with the decor. Such
techniques or finishing grades are thus far not possible on films so that the finishing
of the baseboard will always be of lesser quality than that of the floor.
[0008] A second problem with sheathed profiles is their durability. Under the influence
of sunlight or UV light, discolouration or ageing will occur. As long as the top layer
of the baseboards is not identical to the top layer of the floor panels, these will
never age in the same way and in the end a serious colour difference can result between
the baseboards and the flooring, which gets a less attractive finish.
[0009] A third problem with traditional sheathed profiles is that one has to lay in a stock
of film for each decor or floor panel to make the aforementioned finishing strips
or baseboards. These films often have to be purchased in large numbers, so that this
is a costly matter for the floor manufacturer. Thanks to digital printing, one can
keep these volumes to a minimum, but then the print or structure will still never
be identical to the respective floor panel. Also, digitally printed films often do
not have the necessary scratch resistance, so that they cannot be used for finishing
strips which are walked upon.
[0010] The aforementioned problems would be solved if one could fabricate baseboards or
profiles from the same sheet material as the corresponding floor panel is made of.
After all, the floor panels are obtained by sawing a large mother sheet into smaller
pieces. It should also be possible to use this mother sheet to fabricate baseboards
or profiles.
[0011] There are already techniques known in the prior art which make it possible to fabricate
a baseboard. Thus, the patent holder in the past has developed a technique which was
specified in
BE 1019285, and which allows a baseboard to be fabricated by folding a sheetlike material. For
this, V-shaped recesses are made in the carrier material on the back side of the sheetlike
material. After applying a glue layer, the sheetlike material is folded tightly into
a baseboard. However, it has been found that this technique is only applicable to
sheet material whose decorative top layer is flexible and/or foldable enough, such
as vinyl or LVT, and which can thus be folded safely by a certain angle (e.g., 90°).
[0012] The technique specified in
BE 1019285 is consequently not suited to making baseboards or finishing strips of sheet material
whose decorative top layer is very thin (at most 0.35 mm), brittle and fragile, such
as that made from DPL or HPL sheet material. Namely, it has been found experimentally
that the top layer will break or tear upon making the slightest fold or exerting the
least pressure.
[0013] Therefore, the purpose of this invention is to create a method which allows the fabricating
of a baseboard or finishing profile from a sheet material with a hard and brittle
top layer, such as a DPL or HPL sheet material, and which is just as attractive or
high in quality as the traditional baseboards or profiles. For this, it is also essential
that the decorative film or top layer runs uninterrupted across the entire visible
side of the baseboard or the finishing profile.
[0014] The purpose of the invention is achieved by providing a method for the forming of
a baseboard or finishing profile for flooring which comprises a wood-based carrier
material, provided with a decorative top layer having one or more resin-impregnated
layers, wherein the method involves the following steps:
- the making of one or more cutouts in the carrier material provided with a decorative
top layer for the forming of one or more fold pieces, each fold piece containing a
remaining portion of carrier material with a thickness between 0.03 and 1.4 mm and
a width of at least 2 mm;
- the applying of a layer of filler and/or adhesive over the entire width of the fold
piece, this layer forming a support layer for the decorative top layer;
- the forming of the baseboard or finishing profile by heating of one or more fold pieces
and bending them to the desired radius or shape.
The method according to this invention allows one to make a baseboard or profile from
panels with a hard top layer wherein a part of the respective panel is bent without
this causing a tear (or crack) in the decorative top layer. Likewise, this method
will ensure that the resulting baseboard or profile will be strong enough and that
it can offer sufficient resistance to impacts, so that one can walk on these profiles.
Furthermore, with the method according to the invention it is possible to manufacture
the baseboards or finishing profiles in an economically profitable manner.
[0015] According to one preferable method, the thickness of the remaining portion of carrier
material is between 0.2 and 0.8 mm, more particularly between 0.2 and 0.6 mm.
[0016] Further preferable method steps according to the invention are described in the dependent
claims.
[0017] Another subject matter of this invention concerns a baseboard for a wall of a room
or finishing profile for flooring, comprising a body made up of at least one wood-based
carrier material, and a decorative top layer having one or more resin-impregnated
layers, wherein said body comprises a lengthwise part forming at least one portion
of the front of the baseboard or the finishing profile, and a top part that forms
at least one portion of the top of the baseboard or the finishing profile, wherein
the transition between the lengthwise part and the top part has a curved course, wherein
at the height of said transition a remaining portion of carrier material is provided
with a thickness between 0.03 and 1.4 mm and this across a width of at least 2 mm,
and wherein opposite said remaining portion a support layer is provided for the remaining
portion of carrier material with decorative top layer having a different composition
than the carrier material.
[0018] Preferred embodiments of the baseboard or finishing profile are described in the
dependent claims.
[0019] In the following detailed description of the method according to this invention and
the baseboards (finishing profiles) so formed, the mentioned characteristics and benefits
of the invention shall be further illustrated. It should be clear that the sole purpose
of this description is to illustrate the general principles of this invention by a
concrete example, and thus nothing in this description can be interpreted as a limitation
of the scope of the patent rights sought in the claims, or the area of application
of this invention.
[0020] In the following description reference is made by means of reference numbers to the
accompanying figures, in which:
- Figure 1: shows a sheet material from which a baseboard can be formed;
- Figure 2: is a representation of the sheet material shown in Figure 1, provided with a cutout for the forming of a fold part;
- Figure 3: is a representation of the heating of the fold part formed in Figure 2, wherein the fold part is to be secured against a profiled element;
- Figure 4: is a first embodiment of a baseboard according to the invention, where at the height
of the rounding of the remaining portion of carrier material with decorative layer
there is present a support layer;
- Figure 5: shows a second embodiment of a baseboard according to the invention where the support
layer does not completely fill the cutout part;
- Figure 6: shows a third embodiment of a baseboard according to the invention where the carrier
material is composed of two layers;
- Figure 7: is a representation of a finishing profile, especially a transition profile, mamifactured
according to the method according to this invention;
- Figure 8: is a representation of the finishing profile shown in Figure 7 in the mounted state;
- Figures 9 to 16: show a number of finishing profiles which can be manufactured with the help of the
method according to the invention;
- Figure 17a: is a representation of a cutting tool with which nose portions can be cut out from
a multifunctional finishing profile;
- Figure 17b: shows the working of the cutting tool depicted in Figure 17a;
- Figures 18 to 23b: show a number of possible method steps according to the invention for making a finishing
profile from a sheet material;
- Figures 24 to 28b: show a number of possible method steps according to the invention for making a baseboard
from a sheet material.
[0021] The method according to this invention involves at least the following steps:
- the making of one or more cutouts (16) in the carrier material (1) provided with a
decorative top layer (2) for the forming of one or more fold pieces (11), each fold
piece (11) containing a remaining portion of carrier material with a thickness (d1)
between 0.03 and 1.4 mm and a width (B) of at least 2 mm;
- the applying of a layer (36) of filler and/or adhesive over the entire width of the
fold piece (11), this layer forming a support layer (36) for the decorative top layer
(2);
- the forming of the baseboard or finishing profile by heating of one or more fold pieces
(11) and bending them to the desired radius (R) or shape.
[0022] The decorative top layers of DPL and DLP sheet materials are very thin or almost
nil. If we want to bend these top layers in a mechanical manner, we need to leave
a limited amount of HDF layer or carrier material in the fold part, or else this top
layer will break or tear outright. On the other hand, we cannot leave behind too much
carrier material: the thicker the carrier material, the harder it is to bend. This
will make the radius formed at the top of the baseboard increasingly large and we
will no longer be able to fold, for example, the top side of a baseboard by 90°. Since
HDF or wood is not thermoplastic, we need to take into account the properties of HDF
in order to make the folding possible. Yet we see that a thin layer of HDF when heated
becomes more slack and less brittle.
[0023] The decorative top layer of DPL sheet material has a total thickness of +/-0.2 to
0.3 mm. The decorative paper has a thickness of +/-0.05 mm. Such tolerances are not
attainable for many machines. Any way, one must not cut through the decorative paper,
or else a part of the decoration or print will disappear or exhibit small cracks.
DLP floor panels do not have any printed paper, but rather the print is pressed directly
onto the carrier material. In this way, it is not possible to remove all of the carrier
material in order to employ a kind of post-forming for the forming of a baseboard.
One must also take account of the fact that one has to cut away the carrier material
across a well defined width B. Across this width B the material is very weak, which
will make it shake so that the tolerances can no longer be maintained under control.
Thus, it is almost impossible to entirely cut away the carrier material down to the
decorative paper. If we leave behind a rather thin layer of carrier material, the
narrowed portion is somewhat stronger and thus can be kept more under control during
the production.
[0024] If we cut down to the printed paper, which in combination with the melamine resins
is very brittle, this will bring about transverse cracks (flaws) in the printed paper.
The reason is that the printed paper is entirely provided with resin and this is very
brittle, so that it will continually break or crack due to the shaking or impact of
the tools. This will result in an aesthetically less attractive product. In order
to prevent this, it is also necessary not to cut down to the printed paper, but instead
to leave in place a bit of carrier material.
[0025] The top layer is provided with thermoplastic melamine resins. If we heat the top
layer it becomes less brittle, so that the material in the fold part can be folded
by a smaller radius.
The DLP floors have no printed paper layer, but rather the decoration is printed directly
onto the carrier material. However they are provided with a scratchproof transparent
top layer. This heating also has advantages for the folding of the formed fold part.
[0026] As mentioned above, the heating of the top layer brings benefits for the folding
of the material in the fold part. However, if we leave behind a certain thickness
of HDF carrier material in the fold part, this will begin to scorch at a certain temperature.
In a first phase, this will become evident at the top layer and in a further phase
the baseboard will begin to scorch during the production, with all the risks this
entails. We must therefore pay attention when heating the top layer.
The DLP floors have no printed paper layer, but rather the decoration is printed directly
onto the carrier material. However, they are provided with a scratchproof transparent
top layer. This heating can also have advantages for the folding.
[0027] Likewise certain profiles are walked upon, so that the fold part or the bent part
(transition) must be very strong. Even so, if walked upon, the respective fold part
will be subjected to large stresses. Therefore, a filler or adhesive is needed to
support this fold part.
[0028] It is therefore important to determine the ideal thickness of carrier material which
must be left behind in the fold part. In this we must take into account:
- the strength of the fold part, this must be strong enough so that this process can
be carried out entirely mechanically and automatically without the fold part breaking.
- the top layer must be impact resistant and able to be worked further without breaking
off.
- the fold part must still be foldable.
- one must consider the machine tolerances, so that the printed paper is not damaged
during the manufacturing of the baseboard.
[0029] As already indicated, the fold part needs to be very thin, or else we cannot fold
it over. Once the baseboard has been formed, this zone will then also be a very weak
one.
[0030] One could improve this by supporting the fold part with an extra carrier material
integrated in the profile or baseboard. However, this is not quite impossible to automate
and also it limits the form of the baseboard or the profile.
[0031] It is therefore necessary to place a reinforcement (support layer) in the form of
an adhesive or filler which completely supports the fold part. A filler which is to
be applied in liquid form, so that it is easy to automate. Upon cooldown, the filler
will harden, so that the remaining carrier material will be supported together with
the decorative top layer.
[0032] This will make the fold part more impact resistant and also less brittle during the
sawing or the further working.
[0033] This adhesive or filler will thus be injected during production into the recesses
and it will harden after the folding over of the fold part. In this way, the fold
part can in theory take on any given shape.
[0034] Depending on the requirements of the profile or baseboard, one can select a very
hard adhesive or an adhesive which remains more supple or elastic. This can go to
the benefit of the ease of use of the profile.
[0035] The fold part will always have stresses, since it is folded over during the forming
of the baseboard or finishing profile. Because this fold part is now entirely glued
together by the adhesive, these stresses should be neutralized, which greatly reduces
the likelihood that the decorative top layer will still exhibit cracks.
[0036] One must also consider that hot-melt glues are reactivated at certain temperatures.
As a result, the profile or the fold part can come loose under stress or at high temperatures.
However, this can be resolved by using the right type of adhesive.
[0037] Fig. 1: Layout of a floor panel containing a carrier material (1), a decorative layer (7),
a scratchproof top layer (6) and a backing (35). The carrier material can consist
of HDF, MDF, LDF, chipboard, WPC (wood plastic composite), etc.
The decorative layer (7) is a printed film which can be made from decorative paper
(7) with a scratchproof layer on top of this. The scratchproof top layer (6) is a
transparent layer which protects the floor panel against scratching and dirt. Sometimes
the decorative layer (7) and the scratchproof top layer (6) can be the same layer.
The decorative layer (7) and the scratchproof top layer (6) form the decorative top
layer (2). The backing (35) often serves to prevent warping.
Such floor panels depending on their construction are known as DPL (direct pressed
laminate), HPL (high pressure laminate), CPL (continuous pressure laminate), etc.
[0038] Fig. 2: The panel from Fig.1 in which well placed recesses have created a fold part with
a remaining portion (11) of carrier material with a width (B). The thickness d1 is
the thickness of the remaining layer of carrier material (residual layer) (1). Thickness
d2 of the decorative layer (7) and d3 of the scratchproof top layer (6). The total
thickness D of the fold part is thus d1+d2+d3. By leaving in place yet another thickness
d1 of the carrier material (residual layer), the fold part (11) is much more stable.
The thickness d1 of the remaining portion of carrier material is preferably between
0.03 mm and 1.4 mm and in particular between 0.1 mm and 0.8 mm.
In order to still bend this fold part (11) to a radius of, e.g., 5 mm, we must take
advantage of the physical properties of the decorative top layer (2) on the one hand
and the residual layer of carrier material (1) on the other. It is also important
to keep as broad as possible a width (B) of the fold part (11), preferably greater
than 2 mm, more particularly greater than 3 mm. In this way, we no longer have a folding
line, but instead obtain a fold part (11) with a width B > 2 mm and a thickness D
less than or equal to 1.7 mm.
By means of intense heating of both the residual layer of carrier material (1) and
the decorative top layer (7) at the height of the fold part (11), we can bend this
fold part (11) across a certain radius (R). In this way we can form a baseboard or
profile for flooring. Preferably, the fold part will be heated to a temperature between
80° and 250°C. When adjusting the temperature, one should take into account here the
composition of the fold part and the thickness of the remaining portion of carrier
material.
[0039] Fig. 3: Figure showing that the fold part will start to bend over if the decorative top layer
(2) is heated and an air circulation is created above the, e.g., HDF layer of carrier
material (1) in the fold part (11). In order to glue the back side of the fold part
(11) at the rounded side (26) of the profiled part/element (15), we need to press
the fold part (11) with, e.g., pressure rollers. This profiled part (15) can be a
pre-profiled element, but can also be a filler (36) such as an adhesive.
[0040] Fig. 4: Baseboard according to the invention. The Baseboard is composed of at least three
parts, a carrier material (1), a filler (36) with a composition other than the carrier
material (1) and a decorative top layer (2) made from a DPL, a DLP, a CPL and a HPL
sheet material, wherein the decorative top layer (2) shows a rounding or radius (R).
At the height of the rounding there is a fold part (11) containing a decorative top
layer (2) and a thin layer of carrier material (1), this fold part (11) being completely
supported by the filler (36), which forms a support layer, and the decorative top
layer (2) at the height of the fold part (11) has an uninterrupted course. The thickness
D of the fold part is preferably less than 1.7 mm and the width B is preferably greater
than 2 mm. The decorative top layer (2) consists of a decorative film (7) on top of
which is placed a scratchproof top layer (6). The filler (36) which will form the
support layer is an adhesive which has two functions, namely, to support the fragile
fold part (11) and to glue together all component parts. The filler (36) must be strong
enough so that the fragile fold part (11) does not break or crack when sawing the
baseboard.
This filler (36) need not be limited to an adhesive, it can also be a profile which
is placed in the recess (cutout) during the manufacturing of the baseboard. This profile
can be made from the same basic material as the carrier material or from a different
material.
[0041] Fig. 5: Baseboard according to the invention. The baseboard is composed of 3 parts, a carrier
material (1), a filler (36) other than the carrier material (1) and a decorative top
layer (2) wherein the decorative top layer (2) shows a rounding or radius (R). The
decorative top layer (2) is composed of a decorative layer (7) and a scratchproof
top layer (6). At the height of the rounding there is a remaining portion of carrier
material provided with a decorative top layer (2), this remaining portion being completely
supported by the filler (36) which will form the support layer. The decorative top
layer (2) has at the height of the fold part (11) an uninterrupted course. Unlike
Figure 3, the fold part (11) is completely supported by a thin layer of filler or
adhesive (36). If the fold part (11) is not too heavily stressed, as in the case of
a baseboard, this may be sufficient. Thus, besides the filler (36), there can further
be present in the glue chamber (L) an empty cavity (37).
This filler (36) need not be limited to an adhesive, it can also be a profile which
is placed in the recess during the manufacturing of the baseboard. This profile can
be made from the same basic material as the carrier material (1) or from a different
material.
[0042] Fig. 6: Baseboard according to the invention. The baseboard is composed of 4 parts, a carrier
material (1) which is composed of 2 different layers of carrier material (1' and 1"),
a filler (36) other than the carrier material (1' and 1") and a decorative top layer
(2) wherein the decorative top layer (2) shows a rounding or radius (R). At the height
of the rounding there is a fold part (11) containing a decorative top layer (2) and
a thin layer of carrier material (1'), this fold part (11) being completely supported
by the filler (36), and the decorative top layer (2) at the height of the fold part
(11) has an uninterrupted course. The filler (36) is an adhesive which has two functions,
namely, to support the fragile fold part (11) and to glue together all component parts.
The thickness of the remaining portion of carrier material is between 0.03 mm and
1.4 mm. The filler (36) must be strong enough so that the fragile fold part (11) does
not break or crack when sawing the baseboard.
[0043] There may be various reasons why the carrier material (1) is composed of two different
layers of carrier material (1' and 1"): One reason is cost savings. Thus, the layer
of carrier material (1') can be very thin, so that it is glued to a second cheaper
layer of carrier material (1") in order to obtain a thicker baseboard. A second reason
may be stability. It is also so that if the first layer (1') is moisture resistant
while the 2nd layer (1") is not, and the baseboard is profiled so that only the first
layer of carrier material (1') makes contact with the ground, this baseboard can still
be sold as moisture resistant. This can be an important selling advantage.
[0044] Fig. 7: Finishing profile according to the invention. The transition profile is composed
of 3 parts, a carrier material (1), a filler (36) other than the carrier material
and a decorative top layer (2) wherein the decorative top layer (2) shows two roundings.
At the height of the roundings there is a fold part (11) containing a decorative top
layer (2) and a thin layer of carrier material (1), this fold part (11) being completely
supported by the filler (36) and the decorative top layer (2) at the height of the
fold part (11) having an uninterrupted course. The decorative top layer (2) consists
of a decorative film (7) on top of which is placed a scratchproof top layer (6). The
filler (36) is an adhesive which has two functions, namely, to support the fragile
fold part (11) and to glue together all component parts. The thickness of the remaining
portion of carrier material is between 0.03 mm and 1.4 mm. Since these profiles are
walked upon, it is of great importance that the filler (36) be strong enough to support
the fragile fold part (11).
[0045] Fig. 8: Finishing profile according to the invention. The transition profile is composed
of three parts, a carrier material (1), a filler (36) other than the carrier material
and a decorative top layer (2) wherein the decorative top layer (2) shows two roundings.
At the height of the roundings there is a fold part (11) containing a decorative top
layer (2) and a thin layer of carrier material (1), this fold part (11) being completely
supported by the filler (36).
Such a transition profile is walked upon and it is subjected to a number of stresses
(F). Because the fragile fold part (11) is completely supported by the filler (36),
this should not break under heavy load (F). The filler (36) has two functions, namely,
to support the fold part (11) and to glue together the component parts. A more elastic
or tougher adhesive (36) may be used as support layer, so that this also has a more
cushioning function, in order to absorb shocks without breaking.
This profile is secured to the ground by means of a PVC fastening piece (72).
[0046] Fig. 9: T- profile according to the invention. The T-profile is composed of three parts,
a carrier material (1), a filler (36) other than the carrier material and a decorative
top layer (2) wherein the decorative top layer (2) shows two roundings. At the height
of the roundings there is a fold part (11) containing a decorative top layer (2) and
a thin layer of carrier material (1), this fold part (11) being completely supported
by the filler (36). A T-profile is used to make a transition between two floors on
the same level. At the bottom there is a fastening part (6) to snap this profile into
a holder (72).
[0047] Fig. 10: Adjusting profile according to the invention. The adjusting profile is composed of
three parts, a carrier material (1), a filler (36) other than the carrier material
and a decorative top layer (2) wherein the decorative top layer (2) shows two roundings.
At the height of the roundings there is a fold part (11) containing a decorative top
layer (2) and a thin layer of carrier material (1), this fold part (11) being completely
supported by the filler (36). An adjusting profile is used to make a transition between
two floors with a different level. At the bottom there is a fastening part (6) to
snap this profile into a holder (72).
[0048] Fig. 11: End profile according to the invention. The end profile is composed of 3 parts, a
carrier material (1), a filler (36) other than the carrier material and a decorative
top layer (2) wherein the decorative top layer (2) shows two roundings. At the height
of the roundings there is a fold part (11) containing a decorative top layer (2) and
a thin layer of carrier material (1), this fold part (11) being completely supported
by the filler (36). An end profile is used to finish a floor against the wall. At
the bottom there is a fastening part (6) to snap this profile into a holder (72).
[0049] Fig. 12: Multifunctional finishing profile for a flooring comprising a body which is composed
of several parts (3, 6, 7a, 7b) made from a carrier material which are mutually separable
depending on the application, wherein the mentioned parts (3, 6, 7a, 7b) in the joined
state comprise at least one flange-shaped part (3), one fastening part (6) for the
finishing profile and at least one nose piece (7a, 7b) extending beneath the flange-shaped
part (3), wherein the flange-shaped part (3) and the nose piece (7a,7b) are at least
partly furnished with a lining layer (2) and wherein the finishing profile moreover
comprises one or more cutting lines (40a and 40b) in order to separate the parts from
each other with the help of a cutting tool (67), characterized in that the lining
layer (2) at the height of the transition between the flange-shaped part (3) and the
nose piece (7a and 7b) has a curved course, wherein at the height of said curved transition
(11a and 11b) a portion of the carrier material (1) is replaced by a filler (36) with
a different composition than the carrier material (1) and the decorative top layer
(2) at the height of the transition (11a and 11b) has an uninterrupted course, and
said cutting lines (40a and 40b) extend through the filler (36).
[0050] Fig. 13a: shows a piece of multifunctional profile according to the invention. In the figure
the cutting line (40a) is represented and we see that this cutting line (40a) runs
through the support layer (the filler (36)), through the lining layer (2) and through
a residual thin layer of carrier material (1) which is located between the lining
layer (2) and the filler (36).
[0051] Fig. 13b: shows a piece of multifunctional profile according to the invention in perspective.
The lining layer (2) is not interrupted at the height of the cutting line (40a,40b).
[0052] Fig. 14: A multifunctional finishing profile according to the invention. By cutting off the
nose piece (7a) along the cutting line (40a) the multifunctional profile is converted
into an adjusting profile.
[0053] Fig. 15: A multifunctional finishing profile according to the invention. By cutting off the
nose piece (7b) along the cutting line (40b) the multifunctional profile is converted
into an end profile.
[0054] Fig. 16: A multifunctional finishing profile according to the invention. By cutting off the
nose pieces (7a) and (7b) along the cutting lines (40a) and (40b) the multifunctional
profile is converted into a T-profile.
[0055] Fig. 17a: Cutting tool (67) which is specially developed to cut off nose pieces (7a,7b). For
this, an incision is made along the cutting line (40a).
[0056] Fig. 17b: A multifunctional finishing profile according to the invention wherein a nose piece
(7a) is removed by means of the cutting tool. For this, an incision is made along
the cutting line (40a). The cutting is easy because the incision cuts primarily through
the tough adhesive (36) rather than the hard carrier material (1).
[0057] Fig. 18: Floor panel with a construction as described in Figures 1 to 3 with the decorative
top layer (2) pointing downward.
[0058] Fig. 19: On the back side of the panel, recesses (16) are made with a width B. Across this
width B is produced a residual layer (11) which is composed of the decorative film
(6), the scratchproof top layer (7) and a very thin layer of carrier material (1)
with constant thickness. The total thickness of the fold part (11) is D. The side
edges of the recesses (16) can be rounded or angular. It can also be that the thickness
of the remaining portion of carrier material is not constant over the entire width
(B).
[0059] Fig. 20: The residual layers (11) are heated by means of a heat source (20). This heat source
can consist of lamps, air blowers, etc. In this way, the residual layers (11) become
more supple and less brittle. In order to make possible the folding, the decorative
top layer in the fold part must have a temperature between 80° C and 250° C.
[0060] Fig. 21: Glue or adhesive (36) is injected into the recesses (16). The fold parts (11) are
also heated further (20). This glue can be a hot-melt glue, a PUR glue or a polyolefin
glue, depending on the desired properties of the baseboard. The quantity of glue (36)
which is injected into the recess (16) depends on the volume (V) resulting in the
glue chamber (L) after the bending of the fold part (11).
[0061] Fig. 22: The fold parts (11) are bent to a certain radius (R). This produces a glue chamber
(L) with a volume (V). Given that the fold part (11) is much more fragile, it is of
great importance that the fold part (11) be completely supported by the adhesive (36)
with which the glue chamber (L) is filled. It is important that the fold part (11)
be continually heated during the folding.
[0062] Figs. 23a and 23b: We can further work the shaped profile until the desired shape is obtained.
[0063] Fig. 24: On the back side of the panel, recesses (16) are made with a width B. Across this
width B is produced a fold part (11) which is composed of the decorative film (6),
the scratchproof top layer (7) and a very thin layer of carrier material (1) with
constant thickness. The total thickness of the fold part (11) is D. The side edges
of the recesses (16) can be rounded or angular. It can also be that the thickness
of the remaining portion of carrier material is not constant over the entire width
(B), depending on the desired shape to be achieved.
[0064] Fig. 25: The fold parts (11) are heated by means of a heat source (20). This heat source can
consist of lamps, air blowers, etc. In this way, the fold parts (11) become more supple
and less brittle. In order to make possible the folding, the decorative top layer
in the fold part must have a temperature between 80° C and 250° C.
[0065] Fig. 26: A support layer is formed by placing glue (36) in the recesses (cutouts) (16). The
fold parts (11) are also heated further (20). This glue can be a hot-melt glue, a
PUR glue or a polyolefin glue, depending on the desired properties of the baseboard.
The quantity of glue (36) which is injected into the recess (16) depends on the volume
(V) resulting in the glue chamber (L) after the bending of the fold part (11).
[0066] Fig. 27: The fold parts (11) are bent to a certain radius (R). This produces a glue chamber
(L) with a volume (V). Given that the fold part (11) is much more fragile, it is of
great importance that the fold part (11) be completely supported by the adhesive (36)
with which the glue chamber (L) is filled. It is important that the fold part (11)
be continually heated during the folding, or else there is a danger that the fold
part will cool down too much, so that it would break during the folding.
[0067] Figs. 28 a and 28 b: We can further work the shaped profile until the desired shape is obtained. Still
more profilings can also be provided on the back side in order to fasten the baseboards
to the wall with a clip system.
1. Method for the forming of a baseboard or finishing profile for flooring, comprising
a wood-based carrier material (1), provided with a decorative top layer (2) having
one or more resin-impregnated layers,
characterized in that the method involves the following steps:
- the making of one or more cutouts (16) in the carrier material (1) provided with
a decorative top layer (2) for the forming of one or more fold pieces (11), each fold
piece (11) containing a remaining portion of carrier material with a thickness (d1)
between 0.03 and 1.4 mm and a width (B) of at least 2 mm;
- the applying of a layer (36) of filler and/or adhesive over the entire width of
the fold piece (11), this layer forming a support layer (36) for the decorative top
layer (2);
- the forming of the baseboard or finishing profile by heating of one or more fold
pieces (11) and bending them to the desired radius (R) or shape.
2. Method according to Claim 1, characterized in that the remaining portion of carrier material in the fold part has a constant thickness.
3. Method according to Claim 1 or 2, characterized in that the carrier material (1) is made of LDF, MDF, HDF or chipboard.
4. Method according to one of the preceding claims, characterized in that the fold parts during the bending have reached a temperature between 80° C and 250°
C.
5. Method according to one of the preceding claims, characterized in that the baseboard or finishing profile is made from an HPL, CPL or DPL panel.
6. Method according to one of the preceding claims, characterized in that the support layer (36) contains a PUR glue, an EVA glue, a hot-melt glue, a water-based
glue, a binary glue or a polyolefin glue.
7. Method according to one of the preceding claims, characterized in that after the bending of the fold parts to the desired shape or radius (R) the whole
is cooled down to allow the support layer to harden.
8. Method according to one of the preceding claims, characterized in that after the making of the cutout, the walls of the fold part extend at least in part
transversely to the remaining portion of carrier material.
9. Baseboard for a wall of a room or finishing profile for flooring, comprising a body
made up of at least one wood-based carrier material (1), and a decorative top layer
(2) having one or more resin-impregnated layers, wherein said body comprises a lengthwise
part forming at least one portion of the front of the baseboard or the finishing profile,
and a top part that forms at least one portion of the top of the baseboard or the
finishing profile, wherein the transition between the lengthwise part and the top
part has a curved course, characterized in that at the height of said transition a remaining portion of carrier material is provided
with a thickness between 0.03 and 1.4 mm and this across a width of at least 2 mm,
and opposite said remaining portion a support layer (36) is provided for the remaining
portion of carrier material with decorative top layer having a different composition
than the carrier material (1).
10. Baseboard or finishing profile according to Claim 9, characterized in that the decorative top layer (2) at the height of the transition has an uninterrupted
course.
11. Baseboard or finishing profile according to Claim 9 or 10, characterized in that the support layer (36) contains a PUR glue, an EVA (hot-melt) glue, a water-based
glue, a binary glue or a polyolefin glue.
12. Baseboard or finishing profile according to one of Claims 9 to 11, characterized in that the decorative top layer (2) is composed of a decorative film (7) with a scratchproof
top layer (6) placed on it.
13. Baseboard or finishing profile according to one of Claims 9 to 12, characterized in that the finishing profile is a T-profile, an adjusting profile or an end profile.
14. Baseboard or finishing profile according to one of Claims 9 to 12, characterized in that the finishing profile is multifunctional and can be formed into a T-profile, an adjusting
profile or an end profile.