[0001] The present invention relates to a ceiling system comprising horizontal laths mounted
in spaced-apart relationship and a ceiling cloth that is stretched between and under
said laths, a finishing section for finishing an edge between the ceiling cloth and
a wall, and fixing means for fixing said finishing section to the ceiling cloth and
to the wall.
[0002] Such a system is described in
Dutch patent NL 1003163. In the known system, an extruded lath of plastic material is used, which is attached
to the fixed ceiling via spacer blocks provided along a wall of a room. The lath has
a number of slots extending in the longitudinal direction, which are open at their
bottom side. The ceiling cloth of the suspended ceiling is clamped down in one of
said slots by means of an elongate strip, which is pressed upwards into the clamping
slot in question with the end of the cloth folded thereover, whilst a barbed rib forming
part of a finishing section at the upper side thereof is pressed upwards into another
slot, which is positioned closer to the wall. The slot in question itself is also
provided with barbs, so that the connection between the finishing section and the
lath that is realised in this manner is of a more or less permanent nature, which
connection can only be broken by specialists in practice. Because of this more or
less permanent nature of the attachment of the finishing section to the ceiling via
the lath it is not readily possible to exchange a finishing section for another finishing
section once it has been fitted, which may be desirable when changing the interior
of the room in question or, for example, in case the finishing section were damaged.
Another drawback of the use of the known finishing system is the fact that as the
height of the finishing section increases or, in order words, as the finishing section
extends further below the suspended ceiling, the risk of a visually objectionable
gap being formed between the underside of the finishing section and the wall along
which the finishing section is provided increases, in particular if said wall is inclined
in outward direction from the top to the bottom to a certain extent, seen in a vertical
plane perpendicular to the wall in question. To overcome this problem, it is known
in practice to fix a clamping strip to the wall within the height of the finishing
section, preferably near the bottom side thereof, to which the finishing section can
be clampingly connected so as to obtain a proper abutment of the clamping strip against
the wall along the lower longitudinal edge thereof. The mounting of the clamping strip
in turn involves additional operations, of course, which operations need to be carried
out with due precision.
[0003] The object of the present invention is to provide a finishing system as referred
to in the introductory paragraph, wherein, whether or not in preferred embodiments
of the invention, the aforesaid drawbacks of ceiling systems according to the prior
art do not apply, or at least to a significantly smaller extent. In order to accomplish
that object, the finishing section comprises a base section, which is fixed to the
underside of the ceiling cloth or to the wall by said fixing means, as well as a cover
section, which can be connected to the base section by connecting means, in such a
manner that the cover section abuts against the ceiling cloth and/or against the wall.
Designing the finishing section as a separate base section and a cover section that
can be interconnected by means of the base section makes it possible to configure
the connection between the base section and the cover section such that the two can
readily be manually disconnected from each other without the connection between the
base section and the ceiling or a wall being affected.
[0004] A very advantageous embodiment of the connecting means is obtained if the connecting
means comprise a clamping slot associated with either one of the base section and
the cover section and a clamping wall associated with the other one of the base section
and the cover section, which is clampingly inserted into the clamping slot. The connection
between the base section and the cover section can thus be effected in a simple manner
by inserting the clamping wall into the clamping slot.
[0005] Furthermore preferably, the clamping slot is horizontally oriented. The important
advantage of this preferred embodiment is that the cover section can thus be pushed
against the wall, making it possible to obtain a proper abutment between the wall
and the (underside of the) cover section, even if the latter has a comparatively great
height. The present preferred embodiment does not exclude the possibility of using
a clamping strip fixed to the wall after all, as is the case with the prior art, in
particular in the case of strongly inclined and/or wavy walls, but this will be necessary
less soon than is the case with finishing systems according to the prior art. An additional
advantage of the use of a horizontally oriented clamping slot is that thus the cover
section will not tend to move downwards under the influence of the force of gravity,
which might even lead to the connection between the cover section and the base section
being broken and the cover section falling on the ground.
[0006] Preferably, the clamping slot and/or the clamping wall is (are) provided with a roughened
portion, for example in the form of teeth. Thus it can be ensured that the base section
and the cover section will remain correctly positioned relative to each other also
in the course of time, which position might be affected by external factors, such
as vibrations caused by passing traffic. It will be understood that care must be taken
in that case that the roughened portion is not such that it the connection between
the base section and the cover section cannot be broken, or only with a great deal
of effort, comparable to the connection of the base section to the ceiling or the
wall by the fixing means.
[0007] The clamping slot preferably forms part of the base section, so that the clamping
wall of the cover section can be inserted into the clamping slot of the base section.
[0008] According to a very practical embodiment, the clamping slot is formed by the space
between two at least substantially parallel slot walls, with the free end of one of
the slot walls springing towards the other slot wall. As a result, the clamping wall
is clamped between the slot walls of the clamping slot to a certain extent. In addition,
the presence of the clamping slot can thus be hidden from view in that the free end
of the slot wall that is inclined in the direction of the other slot wall can abut
against said other slot wall, so that there will be no gap, at most a seam.
[0009] Preferably, the base section abuts both against the ceiling cloth and against the
wall, so that it is also suitable for use without a separate cover section, as already
indicated in the preceding paragraph.
[0010] Furthermore it is advantageous if the cover section abuts both against the ceiling
cloth and against the wall. Thus, the base section would be hidden from view in its
entirety by the cover section, so that no special demands need to be made as regards
the aesthetic quality of the base section.
[0011] To realise a proper abutment of the cover section and/or the base section against
the ceiling cloth or the wall, at least one of the longitudinal edges of the base
section and/or the cover section that abut against the ceiling cloth or the wall are
formed by a flexible flange edge, such as a rubber or TPE (ThermoPlastic Elastomer).
[0012] Furthermore preferably, the base section is fixed to a lath by the fixing means.
[0013] Even more preferably, the fixing means comprise a clamping recess forming part of
either one of the base section and the lath, as well as a clamping rib inserted into
the clamping recess, which forms part of the other one of the base section and the
lath.
[0014] The clamping rib is preferably vertically oriented, so that the base section can
be connected to the lath by pushing the base section upwards against the lath.
[0015] Finally, the invention also relates to a base section as such as well as to a cover
section at such for use in a finishing system according to the invention as described
above.
[0016] The invention will now be explained in more detail in the description below of a
finishing system according to a preferred embodiment of the invention, in which reference
is made to the following figures 1-4, which are vertical cross-sectional views of
the finishing stages during four successive stages of the mounting thereof.
[0017] Figure 1 shows a part of a room 2 at the location of the right-angled joint between
a wall 3 and the fixed ceiling 4 of the room 2. Disposed some distance below the ceiling
4 is an extruded hard plastic clamping section 5, which is fixed to the bottom side
of a spacer 6, e.g. a wooden strip, with its flat upper side by means of screws (not
shown), which spacer 6 is in turn fixed (in a manner not shown) to the ceiling 4 and/or
the wall 3. The clamping section 5 is practically fully identical to the lath 2 as
described in
Dutch patent NL 1003163, to which document reference is made for a more detailed description. Within the
context of the present invention if suffices to note that it comprises four downwardly
extending slots 7,8,9,10, with the slot 9 being provided with teeth 11. The clamping
section 5 is provided not only along the entire length of the wall 3 but also along
all other walls of the room 2, thus forming an endless whole.
[0018] Figure 2 shows the situation that is obtained after a cloth-like ceiling 12 has been
stretched on the inner side of the clamping sections 5. To that end an elongate clamping
strip 13 with the edge of the stretch ceiling 12 folded thereover in the form of an
upside-down U-shape is clampingly accommodated in the slot 7. Also in this regard
the present embodiment is not different, or at least not significantly so, from the
embodiment as described in
Dutch patent NL 1003163, to which reference is again made for a more detailed description.
[0019] Figure 3 shows the manner in which subsequently an extruded hard plastic base section
14 is connected to the clamping section 5. To that end and upwardly extending, barbed
rib 27 is inserted into the slot 9 of the clamping section 5. The base section 14
is U-shaped, seen in vertical cross-sectional view, and is provided with legs 15,
16 having bevelled free ends 17, 18, which extend into the room 2. Although the bevelled
ends 17, 18 are spaced apart in figure 2, the end 18 inclines towards the end 17 when
no forces are exerted thereon, so that the bevelled portions of the ends 17, 18 join
one another in mutually aligned relationship. Present between the legs 15, 16 is a
slot 19, which can be characterised as a clamping slot 19 on account of the fact that
the (end 18 of the) leg 16 inclines in the direction of the leg 15. To obtain a proper
abutment of the base section 14 against the wall 3, the base section 14 is provided
with an elastically deformable flange 20. Near its end 18, the leg 16 is provided
with a tooth 21 on the side facing towards the leg 15.
[0020] Finally, figure 4 shows the finishing system as it can eventually be used with an
extruded hard plastic cover section 22. The cover section 22 is shown more or less
schematically in figure 4, but as those skilled in the art will appreciate, it may
have various forms. One condition in the case of the present preferred embodiment,
however, is that the cover section 22 be provided with an insertion leg 23 at the
upper side thereof, which insertion leg has a free end that extends towards the wall
3. A number of teeth 26 are provided on the bottom side of the insertion leg 23, which
teeth are intended to mate with the tooth 21 on the leg 16 for the purpose of stabilising
the position of the cover section 22 with respect to the base section 14. In applied
form, the insertion leg 23 is inserted between the ends 17, 18 of the legs 15, 16
of the base section in the direction indicated by the arrow 28, until the flange 24,
which is elastically deformable, abuts against the wall 3. In addition to that, the
elastically deformable flange 25 abuts against the stretch ceiling 12.
[0021] An important advantage of the present invention is the fact that a higher degree
of flexibility is obtained as regards the horizontal position of the cover section
22 with respect to the clamping section 5, so that a proper abutment of the cover
section 22 against the wall 3 can be guaranteed also in the case of a relatively strongly
inclined position of the wall 3 and/or a great height of the cover section 22. In
addition to that, the finishing system provides a possibility of easily exchanging
the cover 22, if desired, thus making it possible to realise an entirely new appearance.
[0022] Furthermore it is important to note that the clamping section 5 is designed so that
it would also be possible not to use a separate cover section 22, and that consequently
the clamping section 5 in fact functions as a cover section, in which connection it
should be realised that the end 18 of the leg 16 abuts against the end 17 of the legs
15 in unloaded condition, so that no gap that is visible from the room 2 is present
therebetween but rather a seam, which will hardly be visible, if at all.
1. A ceiling system comprising horizontal laths mounted in spaced-apart relationship
and a ceiling cloth that is stretched between and under said laths, a finishing section
for finishing an edge between the ceiling cloth and a wall, and fixing means for fixing
said finishing section to the ceiling cloth and to the wall, characterised in that the finishing section comprises a base section, which is fixed to the underside of
the ceiling cloth or to the wall by said fixing means, as well as a cover section,
which can be connected to the base section by connecting means, in such a manner that
the cover section abuts against the ceiling cloth and/or against the wall.
2. A system according to claim 1, characterised in that the connecting means comprise a clamping slot associated with either one of the base
section and the cover section and a clamping wall associated with the other one of
the base section and the cover section, which is clampingly inserted into the clamping
slot.
3. A system according to claim 2, characterised in that the clamping slot is horizontally oriented.
4. A system according to claim 2 or 3, characterised in that the clamping slot and/or the clamping wall is (are) provided with a roughened portion,
for example in the form of teeth.
5. A system according to claim 2, 3 or 4, characterised in that the clamping slot forms part of the base section.
6. A system according to claim 2, 3, 4 or 5, characterised in that the clamping slot is formed by the space between two at least substantially parallel
slot walls, with the free end of one of the slot walls springing towards the other
slot wall.
7. A system according to any one of the preceding claims, characterised in that the base section abuts both against the ceiling cloth and against the wall.
8. A system according to any one of the preceding claims, characterised in that the cover section abuts both against the ceiling cloth and against the wall.
9. A system according to any one of the preceding claims, characterised in that the cover section hides the base section from view in its entirety.
10. A system according to any one of the preceding claims, characterised in that at least one of the longitudinal edges of the base section and/or the cover section
that abut against the ceiling cloth or the wall are formed by a flexible flange edge.
11. A system according to any one of the preceding claims, characterised in that the base section is fixed to a lath by the fixing means.
12. A ceiling system according to claim 11, characterised in that the fixing means comprise a clamping recess forming part of either one of the base
section and the lath, as well as a clamping rib inserted into the clamping recess,
which forms part of the other one of the base section and the lath.
13. A ceiling system according to claim 12, characterised in that the clamping rib is vertically oriented.
14. A base section for use with a ceiling system according to any one of the preceding
claims.
15. A cover section for use with a ceiling system according to any one of the claims 1-13.