U.S. patent application number 14/798603 was filed with the patent office on 2016-01-21 for profiled rail system.
The applicant listed for this patent is Kuberit Profile Systems GmbH & Co. KG. Invention is credited to Olaf Holtschmidt.
Application Number | 20160017597 14/798603 |
Document ID | / |
Family ID | 53716279 |
Filed Date | 2016-01-21 |
United States Patent
Application |
20160017597 |
Kind Code |
A1 |
Holtschmidt; Olaf |
January 21, 2016 |
PROFILED RAIL SYSTEM
Abstract
A profiled rail system (1) is used for bridging expansion joints
or openings and or as edging of floor coverings (5). The profiled
rail system (1) has a first (2) and a second profiled rail (3)
which have mutually overlapping cover legs (6) being directed
towards one another and oriented substantially parallel to the
floor covering (5). The profiled rails (2, 3) can be displaced with
each other. The first profiled rail (2) has a base leg (8) which,
together with a cover leg (6) of the first profiled rail (2) forms
a pocket (12) for receiving a leg (6, 8) of the second profiled
rail (3). A first stop (10) is provided on the base leg (8) of the
first profiled rail (2). The first stop (10) is an operative
connection with a second stop (11) and the second profiled rail
(3). The stops (10, 11) limit mutual displacement of the first
profiled rail (2) with respect to the second profiled rail (3) in
an expansion position. In order to realise an easy mounting, in the
expansion position the ratio of an overlapping (14) of the cover
legs (6) of the profiled rails (2, 3) to a clear height (15) of the
pocket (12) is less than or equal to 0.5.
Inventors: |
Holtschmidt; Olaf;
(Neuenrade, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Kuberit Profile Systems GmbH & Co. KG |
Ludenscheid |
|
DE |
|
|
Family ID: |
53716279 |
Appl. No.: |
14/798603 |
Filed: |
July 14, 2015 |
Current U.S.
Class: |
52/394 |
Current CPC
Class: |
E04F 2201/0153 20130101;
E04F 13/08 20130101; E04B 1/6804 20130101; E04F 15/02005
20130101 |
International
Class: |
E04B 1/68 20060101
E04B001/68; E04F 15/02 20060101 E04F015/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 15, 2014 |
DE |
20 2014 005 717.6 |
Claims
1. Profiled rail system for floor coverings, for at least one of
bridging expansion joints, bridging openings and as edging of said
floor coverings, wherein said profiled rail system comprising at
least one first profiled with and at least one second profiled rail
which both have cover legs, said cover legs are directed towards
one another, oriented substantially parallel to said floor
covering, and are mutually overlapping, wherein said at least one
first profiled rail can be displaced with respect to said at least
one second profiled rail to an expansion position and said at least
one first profiled rail has at least one base leg which, together
with said at least one cover leg of said at least one first
profiled rail, forms at least one pocket for receiving at least one
of said cover leg and said base leg, of said at least one second
profiled rail, wherein at least one first stop is provided on said
at least one base leg of said at least one first profiled rail, and
at least one second stop is provided on said at least one second
profiled rail, said at least one first stop being in operative
connection with said at lest one second stop hereby limiting mutual
displacement of said at least one first profiled rail with respect
to said at least one second profiled rail in said expansion
position, in said expansion position said cover legs of said at
least one first and second profiled rail having an overlapping and
said at least one pocket having a clear height, said overlapping to
said clear height having a ratio being less than or equal to
0.5.
2. Profiled rail system according to claim 1, wherein said ratio of
said overlapping of said cover legs of said first and second
profiled rail in said expansion position to said clear height of
said at least one pocket is less than or equal to 0.3.
3. Profiled rail system according to claim 1, wherein said ratio of
said overlapping of said cover legs of said first and second
profiled rail in said expansion position to said clear height of
said at least one pocket is less than or equal to 0.2.
4. Profiled rail system according to claim 1, wherein said ratio of
said overlapping of said cover legs of said first and second
profiled rail in said expansion position to said clear height of
said at least one pocket is at least 0.05.
5. Profiled rail system according to claim 4, said ratio of said
overlapping of said cover legs of said first and second profiled
rail in said expansion position to said clear height of said at
least one pocket is at least 0.1.
6. Profiled rail system according to claim 1, wherein said first
and second stop have at least one groove and tongue which are
designed to fit one another and form a pivot axis for pivoting said
at least one first profiled rail relative to said at least one
second profiled rail.
7. Profiled rail system according to claims 1, wherein at least one
of said cover legs has at least one third stop.
Description
[0001] The present application claims priority to German Utility
Model Application No. DE 20 201 4 005 717.6, filed on Jul. 15,
2014.
FIELD OF THE INVENTION
[0002] The invention relates to a profiled rail system for bridging
expansion joints or openings and/or as edging of floor
coverings.
DESCRIPTION OF THE PRIOR ART
[0003] DE 20 2007 016 585 U1 discloses a profiled rail system of
the type in question. It consists of two profiled rails which are
mutually telescopable. Each of these profiled rails has a cover leg
which covers the underlying expansion joint. One of the two
profiled rails is designed in two parts, wherein the second part is
substantially formed by a base leg. Both parts are screwed to one
another. The base leg and the cover leg of the other profiled rail
have stops which are in operative connection with one another and
which limit the lateral expansion of the profiled rail system. This
profiled rail system has proved itself many times in practice and
forms the starting point of the present invention.
BRIEF SUMMARY OF THE INVENTION
[0004] In order to correctly cover the expansion joint, opening
and/or edge joint with the profiled rail system, the profiled rails
have mutually overlapping cover legs. These cover legs are
preferably designed in such a way that, in the installed state,
they are the only visible components of the profiled rail system.
If the profiled rails are displaced relative to one another for
example owing to an expansion of the floor covering, the mutual
overlapping of the cover legs changes. In this way, the profiled
rail system can compensate for the longitudinal expansion of the
floor covering. In particular, floor coverings laid in a floating
manner can therefore expand and contract in a problem-free manner
without butting against fixed obstacles and being destroyed in the
process.
[0005] The at least one first profiled rail additionally has at
least one base leg which, together with the at least one cover leg
of the at least one first profiled rail, forms at least one pocket.
This at least one pocket serves to receive the at least one cover
leg of the at least one second profiled rail, resulting in a
telescopic connection between the profiled rails. In addition, at
least one first stop is provided on the at least one base leg of
the at least one first profiled rail, which first stop is in
operative connection with at least one second stop of the at least
one second profiled rail. Here, this at least one second stop can
be mounted for example directly on the at least one cover leg of
the at least one second profiled rail. In addition, the at least
one second profiled rail can also have at least one base leg on
which the at least one second stop is mounted. As soon as the at
least one first stop comes to bear against the at least one second
stop, the profiled rails can no longer be pulled further away from
one another. The relative movement of the profiled rails apart from
one another is therefore limited by these stops. This limitation is
important in order to prevent the profiled rails from coming out of
engagement. If the floor coverings expand again at a subsequent
time, this measure ensures that the profiled rails are correctly
aligned with one another and can be displaced with respect to one
another again. If, by contrast, they were out of engagement, the
telescopic connection could jam and prevent an adaptation of the
profiled rail system. The position in which the stops bear against
one another is thus that position in which the profiled rail system
is pulled furthest apart and is referred to as expansion position
in the following.
[0006] In order to be able to assemble the profiled rail system in
a simple manner, as small as possible an overlapping of the cover
legs in the expansion position is chosen. In particular, the ratio
of this overlapping to the clear height of the at least one pocket
is less than or equal to 0.5. Thus, the profiled rail system can be
assembled very simply by firstly connecting the profiled rails to
at least one adjacent floor covering. Here, the profiled rails are
preferably pushed together to such an extent that the free ends of
the cover legs butt against one another. The profiled rail system
is then lifted slightly in the region of the free ends of the cover
legs, with the result that the cover leg of the at least one second
profiled rail slides behind the first stop into the at least one
pocket. Owing to the small ratio between the overlapping of the
cover legs in the expansion position and the clear height of the at
least one pocket, this can be achieved by moderate lifting of the
two profiled rails, with the result that the two profiled rails are
pivoted by in each case about 13 degrees. This is also possible in
the installed state of the profiled rails, in particular in the
case of thin floor coverings such as laminate, for example.
[0007] In the case of thicker floor coverings, pivoting through an
angle of 13 degrees is already associated with somewhat greater
effort. For this reason, it is advantageous in such applications if
the ratio between the mutual overlapping of the cover legs in the
expansion position and the clear height of the at least one pocket
is less than or equal to 0.3. In this case, the two profiled rails
must be pivoted only by about 8 degrees so that the profiled rails
hook into one another.
[0008] In particular when using the profiled rail system as edging,
it is advantageous if the ratio between the mutual overlapping of
the cover legs in the expansion position and the clear height of
the at least one pocket is less than or equal to 0.2. In these use
cases, only one of the profiled rails can be pivoted as a rule,
which is partly problematic given the directly adjoining wall.
Therefore, this application requires a correspondingly smaller
overlapping of the cover legs in order to be able to assemble the
profiled rail system.
[0009] In the downward direction, the ratio between the overlapping
of the cover legs in the expansion position and the clear height of
the at least one pocket is limited by 0, since otherwise no
overlapping would be present any more. In order, on the other hand,
to ensure sufficient functional reliability in use, a certain
minimum overlapping is also expedient in the expansion position.
Here, in a preferred embodiment, a ratio between the overlapping of
the cover legs in the expansion position to the clear height of the
at least one pocket of at least 0.05 has proved itself.
[0010] Particularly when the underlying surface is not exactly
flat, it may occur that the profiled rails of the profiled rail
system come out of engagement during their expansion movement. In
order, here too, to ensure the function of the profiled rail
system, the said ratio is at least 0.1.
[0011] In order to facilitate the assembly of the profiled rail
system and at the same time to improve the functional reliability,
it is advantageous if the stops have at least one groove and tongue
which are designed to fit one another. Here, this groove and tongue
form a pivot axis for pivoting the at least one first profiled rail
with respect to the at least one second profiled rail. However,
this pivot axis is defined only in the expansion position. When
assembling the profiled rail system, it is frequently sufficient in
this case to lift only one of the profiled rails. As a result of
the connection in the tongue-and-groove profiling, the other
profiled rail is also lifted, meaning that the assembly operation
is correspondingly simpler. If the profiled rail system comes into
the expansion position during operation, the interlocking between
the groove and the tongue ensures a very exact alignment of the
profiled rails with respect to one another, with the result that a
subsequent compression of the profiled rails is possible without a
problem.
[0012] Finally, it is advantageous if at least one of the cover
legs has at least one third stop. This at least one third stop
interacts either with at least one stop of the at least one base
leg or of the at least one cover leg of the opposite profiled rail.
This additional third stop ensures a more secure connection between
the profiled rails. In addition, it can be very simply used to
correctly align the profiled rails with one another during assembly
of the profiled rail system before the profiled rails are
interlocked with one another.
BRIEF DESCRIPTION OF DRAWINGS
[0013] Other advantages and characteristics of this invention will
be explained in the detailed description below with reference to
the associated figures that contain several embodiments of this
invention. It should however be understood, that the figure is just
used to illustrate the invention and does not limit the scope of
protection of the invention.
[0014] In the drawing:
[0015] FIG. 1 shows a three-dimensional illustration of a first
embodiment of a profiled rail system in a central position,
[0016] FIG. 2 shows the profiled rail system according to FIG. 1 in
the expansion position,
[0017] FIG. 3 shows the profiled rail system according to FIG. 2 in
an angled expansion position,
[0018] FIG. 4 shows a three-dimensional illustration of a second
embodiment of a profiled rail system in a central position,
[0019] FIG. 5 shows the profiled rail system according to FIG. 4 in
the expansion position,
[0020] FIG. 6 shows the profiled rail system according to FIG. 5 in
an angled expansion position, and
[0021] FIG. 7 shows a third embodiment of the profiled rail system
according to FIG. 4 as edging.
DETAILED DESCRIPTION OF THE INVENTION
[0022] FIG. 1 shows a three-dimensional illustration of a first
embodiment of a profiled rail system 1 in a central position. The
profiled rail system 1 consists of a first profiled rail 2 and a
second profiled rail 3. The two profiled rails 2, 3 are connected,
in particular adhesively bonded, to floor coverings 5 via webs 4.
The embodiment according to FIG. 1 is optimized for thin floor
coverings 5, in particular laminate, carpet and PVC floors.
[0023] The two profiled rails 2, 3 have cover legs 6 which mutually
overlap and bridge a joint 7. The first profiled rail 2
additionally has a base leg 8 which is equipped on the end side
with a first stop 10. The cover leg 6 of the second profiled rail 3
has a second stop 11 which interacts with the first stop 10. The
base leg 8 forms, together with the cover leg 6 of the first
profiled rail 2, a pocket 12 in which the cover leg 6 of the second
profiled rail 3 is displaceably received. A telescopic connection
between the first profiled rail 2 and the second profiled rail 3 is
obtained in this way. Third stops 13 which assist the action of the
first stop 10 and second stop 11 are additionally provided on the
cover legs 6 of the profiled rails 2, 3.
[0024] The spacing of the profiled rails 2, 3 from one another
increases as a result of an opposed displacement of the profiled
rails 2, 3, for example due to shrinkage of the floor coverings 5,
with the result that this movement of the floor coverings 5 is
compensated for by the profiled rail system 1. Starting from a
predetermined distance of the profiled rails 2, 3 from one another,
the first and second stops 10, 11 and also the third stops 13 come
into contact with one another, thereby preventing the profiled
rails 2, 3 from being pulled further apart from one another. This
position, referred to as the expansion position, is illustrated in
FIG. 2. Here, the first stop 10 and the second stop 11 act mainly
in a movement-limiting manner on the profiled rails 2, 3. The third
stops 13 additionally ensure locking in the expansion position and
in particular prevent the second profiled rail 3 from being freed
from the pocket 12 by displacements in the upward direction. This
is particularly important because, when the profiled rails 2, 3 are
subsequently pushed together, they must be correctly aligned with
one another in order to allow this movement.
[0025] In order to be able to assemble the profiled rail system 1
in a simple manner, the profiled rails 2, 3 are first of all
connected to the adjacent floor coverings 5. The profiled rails 2,
3 are then pushed together to such an extent that the second stop
11 comes to lie on the upper side of the first stop 10 without the
two profiled rails 2, 3 being in mutual engagement. The profiled
rail system 1 with the adjacent floor coverings 5 is then slightly
lifted, with the result that the position according to FIG. 3 is
achieved. On account of a slight overlapping 14 of the cover legs 6
in relation to a clear height 15 of the pocket 12, this angling of
the profiled rails 2, 3 is sufficient to ensure that the second
stop 11 slides behind the first stop 10 and the cover leg 6 of the
second profiled rail 3 thus passes into the pocket 12. After
lowering the profiled rail system 1, the latter automatically
passes into the expansion position illustrated in FIG. 2.
[0026] FIG. 2 additionally depicts the overlapping 14 of the cover
legs 6 of the first and second profiled rail 2, 3 in the expansion
position. A clear height 15 of the pocket 12 is additionally
illustrated. The overlapping 14 is selected in relation to the
clear height 15 such that the quotient of the two is approximately
1 to 3.
[0027] FIG. 4 shows a three-dimensional illustration of a second
embodiment of a profiled rail system 1, wherein identical reference
signs designate identical parts. Only the differences from the
embodiment according to FIG. 1 will be discussed below.
[0028] The profiled rail system 1 according to FIG. 4 is designed
for thicker floor coverings 5, in particular for use with a
subfloor 16. For this reason, the profiled rail system 1 has two
webs 4 on each of its profiled rails 2, 3. The subfloor 16 is held
between these webs 4, whereas the floor covering 5 is mounted on
the upper side of the upper web 4.
[0029] In the embodiment according to FIG. 4, the second profiled
rail 3 also has a base leg 8, the latter bearing the second stop
11. Thus, the first and second stop 10, 11 are in each case
integrally formed on corresponding base legs 8.
[0030] The first and second stop 10, 11 of the base legs 8 has a
groove 17 on the one hand and a tongue 18 on the other hand. It is
unimportant here whether the groove 17 is located on the first or
second profiled rail 2, 3.
[0031] In the expansion position illustrated in FIG. 5, the first
stop 10 and second stop 11 bear against one another, with the
result that the tongue 18 engages in the groove 17. This ensures
that the connection between the two profiled rails 2, 3 is
additionally strengthened, with the result that these profiled
rails are always exactly aligned with one another. In addition, the
tongue-and-groove profiling forms a pivot axis 19 for the first
profiled rail 2 and second profiled rail 3 with respect to one
another.
[0032] The profiled rail system 1 is assembled in an identical
manner to the above-described first embodiment, starting from an
angled position according to FIG. 6. In addition, the pivot axis 19
formed by the groove 17 and the tongue 18 now helps to hold the
first profiled rail 2 and second profiled rail 3 mutually in
position during the pivoting movement, thereby considerably
facilitating assembly.
[0033] Finally, FIG. 7 shows a further embodiment of the profiled
rail system 1 which substantially corresponds to the profiled rail
system 1 according to
[0034] FIG. 4. Identical reference signs indicate identical parts
here, with only the differences from the embodiment according to
FIG. 4 being discussed below.
[0035] The second profiled rail 3 is unchanged from the embodiment
according to FIG. 4. The webs 4 are dispensed with in the first
profiled rail 2. In addition, the base leg 8 is placed lower so
that it contacts the floor. The first profiled rail 2 additionally
has a vertical web 20 which terminates on the outer side.
Consequently, this profiled rail system 1 can be perfectly used as
edging of a floor covering 5. Assembly is carried out in the same
way as in the embodiment according to FIG. 4. The vertical web 20
is preferably screwed to the wall by means of screws (not
shown).
[0036] The profiled rail systems described preferably consist of
aluminium, an aluminium alloy or a thermoplastic polymer. They are
produced by the extrusion process, which is particularly
cost-effective. Consideration is also given to combining the
individual features of the different exemplary embodiments with one
another. In particular, consideration is given also to configuring
an edging profiled rail system corresponding to FIG. 4 from the
embodiment according to FIG. 1. Here, the web 4 is preferably
omitted from the first profiled web 2, with the result that the
first profiled rail 2 then forms the edging.
[0037] Since some of the embodiments of this invention are not
shown or described, it should be understood that a great number of
changes and modifications of these embodiments is conceivable
without departing from the rationale and scope of protection of the
invention as defined by the claims.
LIST OF REFERENCE SIGNS
[0038] 1 Profiled rail system [0039] 2 First profiled rail [0040] 3
Second profiled rail [0041] 4 Web [0042] 5 Floor covering [0043] 6
Cover leg [0044] 7 Joint [0045] 8 Base leg [0046] 10 First stop
[0047] 11 Second stop [0048] 12 Pocket [0049] 13 Third stop [0050]
14 Overlapping [0051] 15 Clear height of the pocket [0052] 16
Subfloor [0053] 17 Groove [0054] 18 Tongue [0055] 19 Pivot axis
[0056] 20 Vertical web
* * * * *