[0001] The invention relates to a lined drain channel, which drain channel comprises:
- a collecting tray with a bottom and upright walls, wherein the upper edges of the
upright walls define an inflow opening and wherein the collecting tray has an outlet
opening.
[0002] In for instance a shower space or a bathroom it is usual to tile the floor with tiles.
A collecting tray is here arranged in the floor so that water falling on the floor,
for instance from a shower head, can be discharged in an outlet pipe.
[0003] It is known to use an elongate shower drain as collecting tray. The advantage of
an elongate shower drain is that an inclining surface, which is flat and can be lined
with large tiles in simple manner, can be arranged adjacently. Often placed in the
elongate shower drain is a stainless steel grating, through which the shower drain
is clearly visible. In such an elongate shower drain hairs and dirt will stick to
the underside of the grating, particularly to the adjusting feet of the grating. This
is difficult to clean, and thereby less hygienic.
[0004] It is however a trend to conversely make the drain element less visible in the covered
floor, such as a tiled floor. It is known for this purpose to place a so-called tile
grating in an elongate shower drain. This is an element which is lined with a tile,
and largely covers the inflow opening of the shower drain and leaves only small inflow
gaps. A drawback of such a tile grating is that it is difficult to remove when the
shower drain has to be inspected and cleaned.
[0005] The use of a smaller collecting tray in combination with relatively large tiles is
difficult, since the large tiles have to be cut into many pieces for the purpose of
providing a good downward incline toward the collecting tray. This is because it is
necessary in the case of a smaller collecting tray to provide various inclining surfaces,
each having a downward inclining direction toward the smaller collecting tray.
[0006] In addition, it is known in for instance sports facilities to provide a recess, which
forms a discharge channel, in the cement floor. Arranged in the bottom of this recess
is a drain which protrudes with the upper edges above the bottom surface of the cement
floor so that, when the bottom surface is tiled, the upper surface of the tiles connects
to the upper edges of the drain. In such a construction the drain is in fact arranged
in the same way as in a normal tiled floor.
[0007] The drawback of this construction is that the discharge channel must be formed in
the floor during the work, while the drain is manufactured in the factory. A good
seal between the discharge channel and drain is hereby difficult, and it is difficult
to provide a correct incline in the discharge channel so that collected water is discharged
to the drain properly.
[0008] In addition, the drawback of such a construction is that the width of the discharge
channel is relatively great because a drain with standard dimensions must be arranged
in the recess and a good seal must also be provided.
[0009] Further known are shaped metal drain strips which are provided in a central part
with an opening which connects to an outlet pipe. It is essential precisely in the
case of such metal drain strips that, from a design viewpoint, the metal drain strips
remain visible. It is therefore usual when installing these drain strips to make the
upper edges of the strips flush with the upper surface of the surrounding floor. In
these drain strips the roughness of the metal surface, the so-called R-value, is low
compared to the roughness of tiles. This can cause a user to slip when he or she steps
from the surrounding floor onto the metal drain strip.
[0010] It is now an object of the invention to reduce or even obviate the above stated drawbacks.
[0011] This object is achieved with a lined drain channel according to the preamble, which
drain channel is characterized by:
- at least one discharge channel with an elongate bottom surface and upright walls arranged
in longitudinal direction and on either side of the elongate bottom surface, wherein
at a first end side of the discharge channel the elongate bottom surface is arranged
on an upper edge of the collecting tray and wherein the second end side of the discharge
channel forms an open side of the discharge channel;
- at least one plate-like lining element, such as a tile, arranged on the elongate bottom
surface of the discharge channel.
[0012] Because the elongate bottom surface is at a first end side arranged on an upper edge
of the collecting tray, one whole is obtained, this forming the drain channel. Since
the drain channel is manufactured in the factory, the discharge channel and the collecting
tray can be adapted to each other in simple manner, whereby a good seal, a correct
incline in the discharge channel and a good discharge of water can be ensured.
[0013] Now that the drain channel itself is provided with a discharge channel at least one
plate-like lining element, such as a tile, can be arranged herein on the bottom surface.
The at least one plate-like lining element will hereby simply lie at the correct incline,
without special attention having to be paid thereto during the work.
[0014] The chance of leakage will further decrease owing to the discharge channel. Even
when the at least one plate-like lining element has not been arranged watertightly
on the bottom surface and leakage water may come to lie under the lining element,
the leakage water will still flow to the collecting tray and over an upper edge into
the collecting tray owing to the bottom surface of the discharge channel.
[0015] Because the lined drain channel further has on the second end side of the discharge
channel an open side of the discharge channel, a surrounding floor can easily continue
into the at least one plate-like lining element in the discharge channel. The lined
drain channel and the surrounding floor can hereby simply form one whole to the eye.
[0016] The at least one plate-like lining element can for instance be a wooden board, glass
plate or Corian plate.
[0017] In an embodiment of the lined drain channel according to the invention the elongate
bottom surface rises from the upper edge, and the height of the upright walls arranged
on either side decreases correspondingly.
[0018] Owing to the rising elongate bottom surface a suitable incline in the discharge channel
to the collecting tray is obtained, while the upright walls decreasing in height can
form a horizontal upper edge of the drain channel and thus provide for a finish of
the sides of the discharge channel and at the same time a finish of the cement floor,
which lies against the discharge channel.
[0019] In another embodiment of the lined drain channel according to the invention the height
of the upright walls arranged on either side is zero on the open side of the discharge
channel.
[0020] In this embodiment the at least one plate-like lining element, such as a tile, will
lie in the discharge channel with its side on the second end side flush with the covering
elements, such as tiles, of a surrounding floor, whereby a simple connection is obtained.
[0021] In a preferred embodiment of the lined drain channel according to the invention a
longitudinally extending horizontal flange is arranged on at least one of the upright
walls of the discharge channel.
[0022] This horizontal flange can be useful in the levelling of the surrounding cement floor,
so that covering elements which are adhered onto this cement floor come to lie at
the same height as the tiles at the outer end of the discharge channel.
[0023] In addition, a sealing tile membrane can be arranged on this horizontal flange in
simple manner. Since the lined drain channel itself is already a whole, attachment
of the tile membrane to the horizontal flange can provide a wholly sealing layer under
the lining elements. If a crack were to result in one of the joints, leakage water
will be collected by this sealing layer, and the leakage water can flow to the collecting
tray of the drain channel at all times.
[0024] In a preferred embodiment of the lined discharge channel according to the invention
two discharge channels, each with an elongate bottom surface and upright walls arranged
in longitudinal direction and on either side of the respective elongate bottom surface,
are arranged on either side of the collecting tray, and the upright walls lying mutually
in line connect to each other.
[0025] This embodiment of the lined discharge channel corresponds in respect of shape and
position of the outlet opening to a known stainless steel drain channel, in which
a grating is usually placed. The difference is however that, in the case of the invention,
the discharge channels have an open end, this in contrast to the known stainless steel
drain channel, which has closed discharge channels. This embodiment according to the
invention can be placed at the position of such a known drain channel in simple manner.
[0026] In another embodiment of the lined discharge channel according to the invention at
least one of the upright walls of the at least one discharge channel extends over
at least a part of an upper edge of an upright wall of the collecting tray, and connects
thereto.
[0027] With this embodiment the upright walls of the discharge channel and the collecting
tray form one whole, so that the drain channel itself has a common upper edge in at
least the longitudinal direction, whereby a surrounding floor can connect neatly to
the lined drain channel according to the invention.
[0028] In another preferred embodiment of the lined drain channel according to the invention
the elongate bottom surface has on the second end side an upright wall and a wedge-shaped
element is arranged on the elongate bottom surface, in contact with the upright wall
on the second end side, wherein the height of the wedge-shaped element is equal to
the height of this upright wall and wherein the at least one tile is arranged via
this wedge-shaped element on the bottom surface.
[0029] By arranging a wedge-shaped element the bottom surface of the discharge channel is
still provided at an incline, and because the height of the wedge is equal to the
height of the upright wall on the second end side, the discharge channel maintains
an open side on the second end side.
[0030] This embodiment is particularly suitable when an already built-in lower tray of a
prior art drain channel is available. By arranging wedge-shaped elements a drain channel
according to the invention is formed, which can be tiled in simple manner.
[0031] It is highly preferred for the collecting tray and the discharge channel to be made
of a metal, preferably stainless steel.
[0032] It is further preferred for the at least one plate-like lining element to be adhered
to the bottom surface, for instance with tile adhesive or a mastic. The bottom surface
of the discharge channel can for this purpose be provided with a roughened layer,
for instance an adhesive layer with embedded granules, whereby the adhesion of the
tile adhesive and thereby the lining element is improved.
[0033] Yet another embodiment of the lined drain channel according to the invention comprises
a grating arranged in the inflow opening of the collecting tray, wherein the grating
is preferably height-adjustable.
[0034] The invention further relates to a combination of a lined drain channel according
to the invention and a floor, wherein the lined drain channel is arranged in the floor
and wherein the floor is covered at least on one side adjacently of a longitudinal
side of the drain channel with plate-like covering elements, such as tiles.
[0035] The floor has an underlayer on which tiles are arranged. This underlayer is usually
a sand cement floor, but can optionally also be a wooden floor. The drain channel
according to the invention is arranged in this floor and tiles are further arranged
on this floor.
[0036] In a preferred embodiment of the combination according to the invention the floor
part covered with plate-like covering elements has a unidirectional incline perpendicularly
of the longitudinal side of the discharge channel. It is particularly when relatively
large plate-like covering elements are used for covering the floor that a unidirectional
incline is preferred.
[0037] In a further embodiment of the combination according to the invention a recess is
arranged in the floor in line with the at least one discharge channel, adjacently
of the open side of the discharge channel, so that plate-like lining elements arranged
on the bottom surface can extend up to the surface of the recess.
[0038] When it is desirable for the discharge channel to be longer than the length of the
drain channel, a recess can be arranged in the floor, in which recess plate-like lining
elements can be arranged, which connect to the at least one plate-like lining element
on the bottom surface of the discharge channel.
[0039] A further preferred embodiment of the combination according to the invention comprises
a tile membrane arranged over at least a part of the floor and under the lining elements,
and wherein the tile membrane is arranged sealingly on the lined drain channel.
[0040] In each of the above stated embodiments the at least one plate-like lining element
can be a ceramic tile, a wooden plate or a glass plate.
[0041] These and other features of the invention are further elucidated with reference to
the accompanying drawings.
Figure 1 is a perspective view of a first embodiment of a combination according to
the invention with partially cut-away parts.
Figure 2 is a perspective view of a second embodiment of a combination according to
the invention with partially cut-away parts.
Figure 3 is a cross-sectional view of a third embodiment of a combination according
to the invention.
[0042] Figure 1 shows a perspective view of a first embodiment 1 of a combination according
to the invention with partially cut-away parts. Combination 1 has a floor 2 which
is tiled with tiles 3.
[0043] A drain channel 4 is arranged in floor 2. This drain channel 4 has a collecting tray
with a bottom 5 and upright walls 6. The upper edges 7 of upright walls 6 form an
inflow opening 8. Arranged on one of the upright walls 6 is an outlet opening 9.
[0044] Arranged on either side of collecting tray 5, 6, 7 are two discharge channels, each
with an elongate bottom surface 10 which connects with a first end side to an upper
edge 7. Upright walls 11, 12, which are connected to the horizontal flange 13 running
all around, rise from the elongate bottom surface 10. A sealing tile membrane 14 (only
partially shown) is arranged on horizontal flange 13.
[0045] A tile 15 is arranged on the elongate bottom surface 10 of the two discharge channels
10, 11, 12. Due to the incline of the elongate bottom surface 10, tile 15 is also
inclined, so that water flowing in over the surrounding floor 3 is collected in discharge
channels 10, 11, 12 on tiles 15 and can then flow into inflow opening 8 to collecting
tray 5, 6, 7 and outlet opening 9.
[0046] Figure 2 shows a second embodiment of a combination 20 according to the invention.
Combination 20 has a floor 21 on which tiles 22 are arranged, and a drain channel
23.
[0047] Drain channel 23 has a collecting tray with a bottom 24 and upright walls 25, the
upper edges of which define an inflow opening 26. The collecting tray further has
an outlet opening 27.
[0048] Arranged on either side of collecting tray 24, 25 are two discharge channels with
an elongate bottom surface 28 with upright walls 29. The second end side 30 of the
two discharge channels are open and connect to a recess 31 in floor 21.
[0049] The incline of elongate bottom surface 28 connects to the incline of the bottom of
recess 31, so that an elongate tile 32 can be arranged on bottom surface 28 in a manner
overlapping with the bottom of recess 31.
[0050] Arranged on the upright walls 29 of the two discharge channels is a horizontal flange
33 on which a sealing tile membrane 34 is arranged. The edge of tile membrane 34 is
indicated in the figure with a broken line 35. This tile membrane 34 provides for
a seal relative to floor 21 and the recess 31 arranged therein.
[0051] Figure 3 shows a cross-sectional view of a third embodiment 40 of a combination according
to the invention. A collecting tray 42 with two discharge channels 43, 44 is arranged
in floor 41. Collecting tray 42 and discharge channels 43, 44 form a prior art lower
tray, wherein the second end side 44 is closed by an upright wall.
[0052] According to the invention, a wedge-shaped element 45 is however placed herein, whereby
the thus formed discharge channel 43, 44, 45 has a bottom surface rising from collecting
tray 42, with an open second end side. A tile 46 can hereby be arranged on the rising
bottom surface, whereby tile 46 connects to the tiles 47 with which floor 41 is covered.
[0053] In this way existing shower drains can be converted into a lined drain channel according
to the invention.
1. Lined drain channel, which drain channel comprises:
- a collecting tray with a bottom and upright walls, wherein the upper edges of the
upright walls define an inflow opening and wherein the collecting tray has an outlet
opening;
characterized by
- at least one discharge channel with an elongate bottom surface and upright walls
arranged in longitudinal direction and on either side of the elongate bottom surface,
wherein at a first end side of the discharge channel the elongate bottom surface is
arranged on an upper edge of the collecting tray and wherein the second end side of
the discharge channel forms an open side of the discharge channel;
- at least one plate-like lining element, such as a tile, arranged on the elongate
bottom surface of the discharge channel.
2. Lined drain channel according to claim 1, wherein the elongate bottom surface rises
from the upper edge and wherein the height of the upright walls arranged on either
side decreases correspondingly.
3. Lined drain channel according to claim 2, wherein the height of the upright walls
arranged on either side is zero on the open side of the discharge channel.
4. Lined drain channel according to any one of the foregoing claims, wherein a longitudinally
extending horizontal flange is arranged on at least one of the upright walls of the
discharge channel.
5. Lined drain channel according to any one of the foregoing claims, wherein two discharge
channels, each with an elongate bottom surface and upright walls arranged in longitudinal
direction and on either side of the respective elongate bottom surface, are arranged
on either side of the collecting tray, and wherein the upright walls lying mutually
in line connect to each other.
6. Lined drain channel according to any one of the foregoing claims, wherein at least
one of the upright walls of the at least one discharge channel extends over at least
a part of an upper edge of an upright wall of the collecting tray, and connects thereto.
7. Lined drain channel according to any one of the foregoing claims, wherein the elongate
bottom surface has on the second end side an upright wall and wherein a wedge-shaped
element is arranged on the elongate bottom surface, in contact with the upright wall
on the second end side, wherein the height of the wedge-shaped element is equal to
the height of this upright wall and wherein the at least one tile is arranged via
this wedge-shaped element on the bottom surface.
8. Lined drain channel according to any one of the foregoing claims, wherein the collecting
tray and the discharge channel are made of a metal, preferably stainless steel.
9. Lined drain channel according to any one of the foregoing claims, wherein the at least
one tile is adhered to the bottom surface, for instance with tile adhesive or a mastic.
10. Lined drain channel according to any one of the foregoing claims, further comprising
a grating arranged in the inflow opening of the collecting tray, wherein the grating
is preferably height-adjustable.
11. Combination of a lined drain channel according to any one of the foregoing claims
and a floor, wherein the lined drain channel is arranged in the floor and wherein
the floor is covered at least on one side adjacently of a longitudinal side of the
drain channel with tiles.
12. Combination according to claim 11, wherein the floor part covered with tiles has a
unidirectional incline perpendicularly of the longitudinal side of the drain channel.
13. Combination according to claim 11 or 12, wherein a recess is arranged in the floor
in line with the at least one discharge channel, adjacently of the open side of the
discharge channel, so that tiles arranged on the bottom surface can extend up to the
surface of the recess.
14. Combination according to any one of the claims 11-13, further comprising a tile membrane
arranged over at least a part of the floor and under the tiles, and wherein the tile
membrane is arranged sealingly on the lined drain channel.