DEVICE FOR FASTENING A FINISHING STRIP

DISPOSITIF PERMETTANT DE FIXER UNE BAGUETTE DE BORD

English Abstract

The invention relates to a device for fastening a finishing strip (9) with a holder (1) forming a wall leg (3), said holder comprising a receiving web (8) which protrudes upwardly and is arranged offset transversely to the wall leg (3) as well as engages into a downwardly open receiving groove (10) of the finishing strip (9) for the clamping accommodation of the finishing strip (9). In order to create advantageous construction conditions, it is proposed that the receiving web (8) comprises at least three upwardly freely projecting spring tongues (11, 12) which are arranged side by side in a longitudinal direction of the web and have alternately concave and convex bulges about web-parallel axes with respect to the wall leg (3).

French Abstract

L'invention concerne un dispositif permettant de fixer une baguette de bord (9), comprenant un support (1) formant une patte murale (3), ledit support comprenant une tige de retenue (8) s'étendant vers le haut, décalée par rapport à la patte murale (3) et entrant en prise dans une rainure de réception (10) ouverte vers le bas de la baguette de bord (9) en vue de la réception avec serrage de la baguette de bord (9). Pour créer des conditions de construction avantageuses, la tige de retenue (8) comprend au moins trois languettes élastiques (11, 12) posées en rangée l'une à côté de l'autre dans la direction longitudinale de la tige, s'étendant librement vers le haut, les languettes élastiques étant bombées alternativement de manière concave et convexe autour d'axes parallèles à la tige en face de la patte murale (3).

Claims

6
CLAIMS
We claim:
1. A device for fastening a finishing strip comprising: a mount, which
forms a
wall leg, and which has a downwardly protruding receptacle web for the clamped
holding of the finishing strip, which receptacle web is offset transversely in
relation
to the wall leg and engages in a receptacle groove of the finishing strip,
which re-
ceptacle groove is open on the bottom, characterized in that the receptacle
web
comprises at least three spring tongues, which are arrayed adjacent in the web
longitudinal direction and protrude upward freely, and which are bulged
alternately
concavely and convexly in relation to the wall leg about axes parallel to the
web.
2. The device according to Claim 1, wherein the spring tongues are provided
on their outer sides facing away from one another with catch ribs extending in
the
web longitudinal direction.
3. The device according to Claim 1 or 2, characterized in that the spring
tongues cross one another and form additional catch supports with the crossing
ends.
4. The device according to any one of Claims 1 to 3, characterized in that
the
spring tongues extending concavely in relation to the wall leg originate from
the
wall leg and the spring tongues extending convexly in relation to the wall leg
origi-
nate from a transverse web protruding from the wall leg.

Description

CA 03041900 2019-04-26
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TITLE: Device for fastening a finishing strip
Field of the invention
The invention relates to a device for fastening a finishing strip comprising a
mount,
which forms a wall leg, and which has an upwardly protruding receptacle web
off-
set transversely in relation to the wall leg which engages in a receptacle
groove
open on the bottom of the finishing strip for the clamping accommodation of
the
finishing strip.
Cross References to Related Applications
The present application is a national stage entry of international patent
application
no. PCT/AT2018/050006 filed on April 24, 2018 and published as
W02019/000004 Al DEVICE FOR FASTENING A FINISHING STRIP, which
claims priority from and/or the benefit of Austrian patent application no.
A50524/2017 filed on June 26, 2017. Each of the aforementioned patent applica-
tions is incorporated herein by reference in its entirety.
Description of the Prior Art
For fastening finishing strips for floors, providing a mount made of a plastic
profile
is known (EP 2 169 143 A2), which has a wall leg fastenable on the wall and a
re-
ceptacle web for the finishing strip, which is plugged onto the wall-parallel
recepta-
cle web, which is offset transversely in relation to the wall leg and is
approximately
.. parallel to the wall. The receptacle web engages in this case in a
receptacle
groove of the finishing strip, which is fixed with the aid of clamping ribs
provided on
the receptacle web. Since a wall profile which is not linear has to be
expected, dif-
ficulties result during the plugging of the finishing strip onto the
receptacle web of
the mounting profile. This is because longer sections of the finishing strips
require

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greater play in the case of a nonlinear wall profile in relation to the
engagement of
the receptacle web in the receptacle groove of the finishing strip provided
for this
purpose, to be able to plug the finishing strip onto the mounting profile,
while with
shorter sections of the finishing strip, a sufficient clamping connection
between the
receptacle web and the finishing strip is endangered by such play.
In order that the receptacle web can be held securely in the receptacle groove
of
the finishing strip, providing the receptacle web with a spring leg bent back
in the
form of a hairpin is additionally known (WO 02/066764 A2), so that the spring
leg,
which originates from an upper insertion edge of the receptacle web and is
bent
back downward, is pressed against the receptacle web with pre-tension during
the
insertion of the receptacle web into the receptacle groove, which results in a
resili-
ent contact of the clamping parts of the receptacle web, which are provided
with
clamping ribs, on the walls of the receptacle groove and thus a tolerance
compen-
sation, but not with respect to a possibly nonlinear wall profile, but rather
with re-
spect to the clamping connection between the receptacle web of the mount and
the receptacle groove of the finishing strip.
SUMMARY OF THE INVENTION
The invention is therefore based on the object of designing a fastening device
for
finishing strips in such a way that not only the plugging of the finishing
strip onto
the mount fastened on the wall is facilitated independently of the respective
length
of the finishing strip section to be plugged on, but rather also a secure
clamping
connection substantially independent of the respective section length of the
finish-
ing strip can be achieved between the mounting profile and the finishing
strip.
Proceeding from a device of the type described at the outset, the invention
achieves the stated object in that the receptacle web has at least three
spring
tongues, which are arrayed adjacent in the web longitudinal direction and
protrude
freely upward, and which bulge out alternately concavely and convexly in
relation
to the wall leg around web-parallel axes.

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Because of the profile, which is alternately concave and convex in relation to
the
wall leg of the mount, of the spring tongues, which protrude freely upward and
form the receptacle web, these spring tongues bulging out in opposite
directions
are pressed against one another during the engagement in the receptacle groove
of the finishing strip with pre-tension with the effect transversely in
relation to the
wall leg that they bear with the bulges thereof in a clamping manner on the
oppos-
ing walls of the receptacle groove of the finishing strip. Since the free ends
of the
spring tongues protrude upward, a comparatively large spring travel
transversely
to the wall leg can be used, which enables an advantageous adaptation of the
mounts following a nonlinear wall profile to linear finishing strips, without
impairing
the clamping effect, because the spring tongues bulging in opposite directions
can
be deflected resiliently towards both sides in relation to a center plane of
the re-
ceptacle web.
To enhance the withdrawal resistance between the receptacle web of the mount
.. and the receptacle groove of the finishing strip, the spring tongues can be
provid-
ed with catch ribs extending in the web longitudinal direction on the outer
sides
facing away from one another.
The clamping connection between the mount and the finishing strip can
additional-
ly be improved in that the spring tongues cross one another and form
additional
.. catch supports with the crossing ends.
In order that an advantageous spring travel can be ensured for the spring
tongues
bulging in opposite directions, the spring tongues extending concavely in
relation
to the wall leg can originate from the wall leg and the spring tongues
extending
convexly in relation to the wall leg can originate from a transverse web
protruding
.. from the wall leg. This is because the bending length of the spring tongues
is in-
creased by this measure and therefore the compensation between nonlinear walls
and linear wall finishing strips is improved.
BRIEF DESCRIPTION OF THE DRAWINGS

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The subject matter according to the invention is illustrated by way of example
in
the drawings. In the figures
Figure 1 shows a device according to the invention for fastening a
finishing
strip in a front view of the mount,
Figure 2 shows a section along line II-II of Figure 1 in a larger scale,
and
Figure 3 shows a section along line of Figure 1, also in a larger
scale.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The device according to the invention has a mount 1, for example, made of
plastic,
which forms a wall leg 3 fastenable on a wall 2, which is provided with at
least one
oblong hole 4 for a fastening screw. The wall leg 3 protrudes from a base leg
5,
which is connected via an intended breakpoint 6 to the wall leg 3 and can be
sepa-
rated from the wall leg 3 if needed. With the aid of the base leg 5, the mount
1 can
be supported on a floor covering 7. In the upper edge region, the wall leg 3
forms
a receptacle web 8 for the finishing strip 9 to be fastened on the wall 2,
which has
a receptacle groove 10 open on top for the receptacle groove 7 for this
purpose.
The receptacle web 8, which is offset away from the wall 2 in relation to the
wall
leg 3, and which extends approximately parallel to the wall 2 or the wall leg
3, re-
spectively, is composed of at least three, in the exemplary embodiment of four
.. spring tongues 11 and 12 arrayed adjacent in the web longitudinal
direction, which
protrude upward freely and bulge out concavely and convexly alternately with
re-
spect to web-parallel axes in relation to the wall leg 3. As can be inferred
from Fig-
ures 2 and 3, the spring tongues 11 have a concave profile in relation to the
wall
leg 3 and the spring tongues 12 have a convex profile, so that they are
pressed
against one another transversely to the groove walls with resilient pre-
tension up-
on the plugging of the finishing strip 9 onto the mount 1 and fix the
finishing strip 9
in a clamping manner. To secure the clamping connection, the bulges 13 have
catch ribs extending in the web longitudinal direction on the outer sides
thereof
facing toward the groove walls of the receptacle groove 10, which are not
shown
.. for reasons of comprehensibility, however. To improve the clamping mounting
of
the finishing strip 9, the spring tongues 11, 12 can cross one another and
form ad-
ditional catch supports with the crossing ends 14, when the bulges 13 are dis-

CA 03041900 2019-04-26
placed inward by the groove walls upon insertion into the receptacle groove 10
and thus the crossed ends 14 are displaced outward.
According to Figures 2 and 3, the spring tongues 11 extending concavely in
rela-
tion to the wall leg 3 originate from the wall leg 3, but the spring tongues
12 ex-
5 tending convexly in relation to the wall leg 3 originate from a
transverse web 15
protruding from the wall leg 3. The spring travel of the spring tongues 11, 12
pro-
truding freely upward is enlarged by this measure with the effect that the
equaliza-
tion between a curved wall profile and a linear finishing strip 9 can be
improved,
without having to fear disadvantages with respect to the clamping
accommodation
of the finishing strip 9 by the receptacle web 8.
In addition, the mount 1 can be provided with at least one resilient locking
hook 16,
which latches in a catch receptacle 17 of the finishing strip 9 when the
finishing
strip 9 is plugged onto the receptacle web 8 of the mount 1, to additionally
secure
the finishing strip 9 from being unintentionally pulled off of the mount 1.

Representative Drawing