DEVICE FOR WASHING OF CARPETS

DISPOSITIF DE LESSIVAGE DE TAPIS

English Abstract

ABSTRACT
The washing of carpets, to which belong a comparatively
stiff bottom structure and a fibre layer fixed to the
bottom layer, is troublesome and laborious. The object
for the invention is a device for washing of carpets, to
which device belong rolls, supported on which the carpet
is arranged to be conveyed within the device, to which
rolls belong the supporting roll (2) for supporting of
the carpet during the washing and a rinsing roll (4),
placed at a distance from the supporting roll, for suppor-
ting of the carpet during the rinsing. According to the
invention to the device belongs a between the supporting
roll and the rinsing roll placed washing and rinsing appa-
ratus (6), which is arranged to flush under pressure being
detergent on the surface of the carpet located on the sup-
porting roll and scavenging agent on the surface of the
carpet located on the rinsing roll.

Claims

Claims:
1. An apparatus for washing carpets, particularly
carpets having a nap on one side thereof, having a
conveyance path along which carpets to be clearned are
conveyed, said apparatus comprising:
a supporting roll mounted along said conveyance path
and having a longitudinal axis disposed transverse to a
longitudinal axis of said conveyance path for supporting
a carpet to be cleaned during a washing process of the
apparatus;
a rinsing roll mounted along said conveyance path,
downstream of said supporting roll, having a longitudinal
axis disposed transverse to the longitudinal axis of said
conveyance path, for supporting a carpet during a rinsing
process of said apparatus;
a turning roll mounted intermediate said supporting
roll and said rinsing roll, along said conveyance path,
and spaced from a plane defined through said longitudinal
axes of said supporting roll and said rinsing roll; and
a washing and rinsing apparatus mounted so as to be
disposed intermediate and adjacent to said supporting roll
and said rinsing roll, said washing and rinsing apparatus
including means for conveying a washing fluid at high
pressure to and directing said washing fluid toward said
supporting roll and means for conveying a rinsing fluid at
high pressure to and directing said rinsing fluid towards
said rinsing roll;
whereby a carpet conveyed along said conveyance path
is disposed in a convex configuration on said supporting
roll and in a convex position on said rinsing roll and
whereby fluids conveyed and directed by said washing and
rinsing apparatus are impinged upon said convex portions
of said carpet.

2. An apparatus as in claim 1, wherein said washing
and rinsing apparatus is a tubular element mounted so as
to have a longitudinal axis extending in parallel to said
longitudinal axes of said supporting roll and said rinsing
roll so as to be transverse to a longitudinal conveying
direction of said carpet, and a plurality of jet means for
directing said fluids toward said convex carpet portions,
the jets for washing fluid and the jets for rinsing fluid
being spaced from one another on either side of said tube.
3. An apparatus as in claim 1, wherein said washing
and rinsing apparatus is mounted so as to be reciprocally
movable in a direction transverse to said longitudinal
axis of said conveyance path and has at least one jet for
flushing liquid detergent and at least one jet for
flushing liquid scavenging agent under a pressure of at
least 100 kp/cm2 on the convex surfaces of the carpet.
4. An apparatus as in claim 1, further comprising a
drying roll mounted adjacent to and downstream of said
rinsing roll a space between said rinsing roll and said
drying roll being less than a thickness of a carpet
conveyed therebetween whereby the carpet is pressed
between said rinsing roll and said drying roll to thereby
remove fluid therefrom.
5. An apparatus as in claim 4, further including a
drying device mounted adjacent to and downstream of said
drying roll for drying carpet conveyed from said drying
roll.
6. An apparatus as in claim 1, further including a
detergent basin disposed upstream of said supporting roll
along said conveyance path of said carpet whereby carpet
is conveyed through said detergent basin prior to
conveyance to said supporting roll for prewashing.

Description

~5~38~
DEVICE FOR WASHING OF CARPETS
Tlle object of the invention is a device for washing of
carpets, in particular Eibre carpets, to which device
belong rolls, supported on which the carpet is arranged
to be conveyed within the device, to which rolls belong
a supporting roll to support the carpet during the washing
process and a rinsing roll, located at a distance from the
supporting roll, to support the carpet during the rinsing
process.
To the carpets made of ar~ificial and natural fibres belong
a relatively stiff bottom layer made of rubber or corres-
ponding material and a fibre layer fixed to the bottom
layer. These carpets cannot be washed in normal washing
machines due to their stiff bottom structure. The problem
is the washing of the big carpets efficiently and at low
costs. Nowadays the carpets are generally washed by hand
using auxiliary equipment, whereby the costs are high.
Washing contrivances have been developed, in which the
carpets are cleaned through conveying them supported on
rolls e.g. in different kinds of washing basins and by
br~lshing them during the process in order to remove the
dirt. The brushing, however, wears and tears to a great
extent the carpets and the time of usage for them is
shortened. With the help of the present washing devices
the carpets cannot be washed efficiently.
The aim of thè invention is to bring forth a washing device,
which eliminates the disadvantages in the present washing
contrivances for carpets. In particular the aim with the
invention is to bring forward a device for the washing
of carpets, by means of which the carpets made of artifi-
cial and natural fibres can be washed efEiciently and at
low costs. The aim of the invention is additionally
to bring forth a device for washing of the carpets, which
is easy to use and dependable in operation.

~ZS~380
The aim of the invention is reached by means oE the
deviee, which mainly is characterized in that, what in
presented in claims.
In the device according to the invention between the
supporting roll and the rinsing roll a washing and rinsing
apparatus is placed, which is arranged to flush under
pressure being liquid detergent on the surface of the
earpet loeated on the supporting roll and liquid scavenging
agent on the surface of the carpet loeated on the rinsing
roll. Hereby the earpet is washed efficiently, because
the detergent and the scavenging agent can be flushed on
the surface of the earpet at a high pressure, favourably
at a pressure of 100 kp/cm , whereby an effieient
eleaning aetion is reached. The device is simple and
efficient and the pressure of the detergent and scavenging
agent flushes can be regulated to conform with the
dirtness and the quality of the earpet. The washing and
the rinsing apparatus being loeated elose to the supporting
and rinsing rolls the jets are pointed at the earpet
eonveyed between the rolls. The earpet is in a bent
position, whereby the gaps between the fibres are opened
and a good eleaning effeet is aehieved. In addition
eomes, that the deviee in aeeordance with the invention is
simple to manufaeture and to operate.
In the following the invention is explained in detail by
referring to the attached drawing, whieh illustrates a
deviee in one application of the invention
BRIEF DESCRIPTION OF THE Rl~WING5
Fig. 1 is a schematie side elevationa] view, partly in
eross-seetion and partly broken away for clarity,
illustra~ing a device for washing earpets formed in
aeeordance with the present invention;

~S83~3~
Fig. 2 is a schematic perspective view illustrating a
device for washing carpets formed in accordance with the
present invention mounted in a carpet wasning apparatus;
Fig. 3 (with Fig. 1) is a schematic side elevational view
showing the placement of rolls in accordance with the
present invention and the direction of feed of the carpet
therethrough;
Fig. 4 is a perspective schematic view, partly broken away
or clarity of a tubular contrivance having several jets
formed in accordance with the presen-t invention; and
Fig. 5 is a schematic side elevational view, partly in
cross-section, illustrating the washing and rinsing
apparatus in relation to the supporting roll and rinsing
roll of the present inventionO
To the application illustrated in the picture belongs a
feeding roll 1 placed in the front part of the device for
the purpose of feeding the carpet into the device, a next
to the feeding roll placed supporting roll 2 to support
the carpet during the washing, an at a distance from the
2n supporting roll placed turning roll 3, an at a distance
from the turning roll and close to the supporting roll
placed rinsing roll 4 to support the carpet during the
rinsing and the next to the rinsing roll movable placed
drying roll 5 for drying of the carpet. The rolls are
preferably mounted within an apparatus as shown for
example in Fig. 2. The carpet is fed into the device
with the side to be washed downwards and is directed by
adjustable guiding supports (not visible in Fig. 1) from
the feeding roll to the supporting roll and from there
over the turning roll to the rinsing roll, from where the
carpet is directed through the drying roll out of the
device (see Figs. 1 and 3). In the application presented

~2S~33~
the feeding roll~ the supporting roll, the rinsing roll
and the drying roll are located mainly in the sa~e line at
a short distance from the adjacent rolls. The turning roll
is placed at a distance from the supporting roll and the
rinsing roll outside the line formed by the rolls. The
rolls can of course in other applications be placed in
some other way, whereby e.g. the distances between the
rolls may vary.
To the device illustrated on the picture belongs a washing
and rinsing apparatus 6 placed between the supporting roll
and the rinsing roll. To the washing and rinsing apparatus
belongs in the presented application the body 6, which is
arranged movable in the cross direction in regard of the
rolls and the carpet. To the apparatus belongs the
partition wall 11 placed between the supporting roll and
the rinsing roll and the body 6 is arranged to be movable
supported on the partition wall resting on a support made
in the lower part of the partition wall. The washing and
rinsing apparatus is moved back and forth in the cross
direction and the motion direction of the apparatus is
changed at the turning points, which are adjustable
according to the width of the carpet, in a known way by
means of difEerent width tracers.
As can be seen in Fiys. 4 and 5, for example jets 7 and 8,
are located on both sides of the washing and rinsing
apparatus and pointed at the supporting roll and the
rinsing roll. To the apparatus hoses are led, by means
which from the jets 7 the deteryent on the surface oE the
carpet to be cleaned and from the jets 8 the scavenging
agent on the surface of the carpet is flushed. The
pressure of the jet flush is steplessly adjustable and the
pressure being over 100 kp/cm~ the carpet is cleaned
efficiently.

~'~S838
5-~
When feeding the dirty carpet into the device the carpet
is washed by means of the washing je'cs in a bent position
supported by the supporting roll, whereby the raising
tracks between the fibres are opened and the carpet is
efficiently cleaned (see Figs. 1 and 3 and 5 in
particular). With the help of the turning roll the carpet
is turned in such a way, that at the rinsing roll the
fibre surface of the carpet is in the direction to the
rinsing jets. The scavenging agent flushed from the
rinsing jets is washing the detergent efficiently away.
To the device belongs further a drying contrivance 9 placed
close to the drying roll for drying of the carpet coming
from the rolls. The drying contrivance can be compressed
air operated or eOg. a suction drier. The drying contriv-
ance makes the action of the drying roll more efficient
and it is not necessary from the point of view of the
operation of the device.
In a second application to the device in accordance with
the invention belongs a detergent basin 12 located near
the feeding roll, whereat the carpet to be cleaned is
arranged to be transferred through the detergent basin
prior to the supporting roll. Particularly when washing
very dirty carpets this kind of a pre-washing and soaking
is necessary.
The form and function of the washing and rinsing apparatus
can vary in other applications of the invention~ The
washing and rinsing apparatus is in an application of the
invention arranged to extend tubeformed (Figs. ~ and 5) in
the cross direction of the carpet for the width of the
carpet and the rolls, for example along element 13. In
this case to the apparatus belong several, at a distance
from each other placed jets on both sides of the body. In

~S~3380
5a
this application as well as in the earlier presented
applications the washing and rinsing apparatus is located
between the supporting roll and the rinsing roll mainly at
an equally long distance from the rolls.
In one application of the invention the jet or the jets
are arranged in a known way revolving in regard of their
a~es, whereby an equal dispersion of the liquid is achieved
and as a consequence of this a more uniform washing result.
The invention is not limited to the presented applications,
but it can vary within the range of the claims.