TECHNICAL FIELD
[0001] This invention relates to a washing machine.
PRIOR ART
[0002] There are known top- and front-loading clothes washing machines that comprise a support,
a drum adapted to house the clothes to be washed, a tub inside which is housed the
drum, a cover tub arranged fixed to the tub, a trim arranged between the tub cover
and a front surface of the support, through which water is introduced in the drum
interior, and means for draining the fluid housed in the tub. The washing machine
comprises an opening connected to the drum, arranged in a front or top support of
said washing machine, which allows clothes to be introduced into or removed from the
drum, and a door adapted to close said opening. The door also comprises a support
structure and a window, which is substantially curved and which projects out in relation
to the door, substantially orthogonal to it, and oriented towards the inside of the
opening, as shown in
DE102006029480B3 and
DE102006050095A, through which the user may view the inside of the drum.
BRIEF DISCLOSURE OF THE INVENTION
[0004] The object of the invention is to provide a washing machine as defined in the claims.
[0005] The washing machine comprises an opening included in a support and a door adapted
to close the opening, the door comprising a cavity that is adapted to house a load.
A washing machine with an additional housing as well as the conventional drum for
housing the load is thus obtained, the cavity comprised in the door being used as
a housing.
[0006] These and other advantages and characteristics of the invention will be made evident
in the light of the drawings and the detailed description thereof.
DESCRIPTION OF THE DRAWINGS
[0007]
Figure 1 shows a perspective view of a washing machine according to the invention.
Figure 2 shows a view of the door of the washing machine shown in Figure 1.
Figure 3 shows a view of a first example of a hydraulic system of the washing machine
shown in Figure 1.
Figure 4 shows a view of a second example of a hydraulic system of the washing machine
shown in Figure 1.
Figure 5 shows a view of a third example of a hydraulic system of the washing machine
shown in Figure 1.
Figure 6 shows a view of a fourth example of a hydraulic system of the washing machine
shown in Figure 1.
Figure 7 shows a view of a fifth example of a hydraulic system of the washing machine
shown in Figure 1.
DETAILED DISCLOSURE OF THE INVENTION
[0008] The washing machine 1 according to the invention, shown in Figure 1, is a front-loading
washing machine that comprises a support 4, a drum 6 adapted to house the load, a
load being understood as any clothes or elements that may be washed in a washing machine
1, a loading/unloading opening 2, included in a front wall 4a of the support 4 and
connected to the drum 6 and through which the load is introduced in or removed from
the inside of the drum 6, and a door 3 adapted to close the loading opening 2.
[0009] The washing machine 1 comprises a tub 9, shown in Figures 3 to 7, supported in the
support 4, the drum 6 being arranged housed inside the tub 9, a tub cover 8, shown
in Figures 3 to 7, arranged substantially concentric and fixed to the tub 9, and a
trim, not shown in the Figures 3 to 7, arranged between the tub cover 8 and the front
wall 4a of the support 4. The washing machine 1 comprises a hydraulic system that
includes filling means, not shown in the Figures 3 to 7, through which water reaches
the load, and drainage means 60 that drain the fluid housed in the tub 9 to the outside.
[0010] The washing machine 1 also comprises a tray 7, shown in Figures 3 to 7, in which
the detergent and/or necessary additives are deposited, the tray 7 being arranged
connected to the tub 9 by known means.
[0011] In addition, the fluid housed in the tub 9 preferably comprises a mixture of water
and detergent and/or additives originating from the tray 7, although in other examples
said fluid may only comprise water, gas or a mixture of both fluids with or without
detergents and/or additives.
[0012] The drainage means 60 of the fluid housed inside the tub 9 comprise a drainage pump
62, a first drainage pipe 61 connected to the tub 9, in particular to the bottom part
of said tub 9, and to said drainage pump 62, and a second drainage pipe 63, connected
to the drainage pump 62, which takes the water to the washing machine 1 exterior.
[0013] Additionally, the door 3 comprises a support structure 15, and a window 5, fixed
to said support structure 15, through which the inside of the drum 6 is visible, the
surfaces 5d that form said window 5 delimiting a cavity 13, shown in Figure 2, said
cavity 13 being adapted to house a load in its interior, a load being understood as
any clothes or elements that may be washed in the washing machine 1. The door 3 also
comprises fastening means 12, shown in Figure 2, which help keep the load inside the
cavity 13 without said load falling. The fastening means 12 comprise a limiting surface
12b, which, along with the surfaces 5d of the window 5, delimits the cavity 13.
[0014] The washing machine 1 also comprises access means 11 to said cavity 13. In the embodiment
shown in Figure 2, the access means 11 are arranged inserted in the fastening means
12, accessible from the outside of the door 3, said access means 11 being capable
of being arranged, in other embodiments not shown in the figures, inserted in surfaces
5d of the cavity 13, these being accessible either from the inside of the door 3,
from the top part of the door 3 or from the bottom part of the door 3. The access
means 11 shown in Figure 2 comprise a closing element 11 b adapted to open or close
said access means 11.
[0015] In addition the washing machine 1 comprises filling means 20 adapted to introduce
a fluid into the cavity 13, a fluid being understood as water, gas, or a mixture of
water and/or and detergent and/or additives, and emptying means 30 adapted to empty
the cavity 13. As a result, the type of clothes to be washed or treated may be separated,
in the drum 6 and in the cavity 13, either by the size of the clothes, by how dirty
they are and their corresponding treatment, by their composition or by the need to
use different whiteners or additives.
[0016] In the embodiments shown in Figures 3 to 7, the filling means 20 and the emptying
means 30 are arranged connected to the cavity 13. The filling means 20 comprise a
filling pipe 21 that is preferably arranged connected to a top part 5a of the window
5, although in other embodiments not shown in the figures the filling pipe 21 may
be connected to another point of the window 5. In other embodiments not shown in the
figures the filling means 20 may be manual, in other words the fluid is introduced
manually directly in the cavity 13. In addition, the emptying means 30 comprise an
emptying pipe 31, said emptying pipe 31 arranged connected to a bottom part 5b of
the window 5.
[0017] In the first embodiment, shown in Figure 3, the filling pipe 21 is arranged connected
to the drainage means 60, downstream from the drainage pump 62, while the emptying
pipe 31 is arranged connected to the drainage means 60, in particular the first drainage
pipe 61, upstream from the drainage pump 62. Furthermore the filling means 20 comprise
an electrovalve 22 connected to the filling pipe 21, which closes or opens the passage
of fluid flowing through the first drainage pipe 61 towards the cavity 13.
[0018] In addition, in the embodiments shown in Figures 4 to 7, the washing machine 1 comprises
recirculation means 50, arranged connected to the drainage means 60, which recirculate
at least part of the drained fluid towards the load housed in the drum 6 through the
trim. The recirculation means 50 comprise a recirculation pump 52 arranged connected
to the drainage means 60, in particular to the first drainage pipe 61, and a first
recirculation pipe 51 connected to the recirculation pump 52.
[0019] In these embodiments shown in Figures 4 to 7, the filling means 20 are arranged connected
to said recirculation means 50 of the fluid housed in the tub 9. The filling pipe
21 is thus arranged connected to the first recirculation pipe 51. Additionally, the
recirculation means 50 comprise a second recirculation pipe 53 through which the first
recirculation pipe 51 is connected to the trim, the second recirculation pipe 53 being
arranged connected to said first recirculation pipe 51 and to the filling pipe 21.
To achieve this, in the second embodiment shown in Figure 4, the second recirculation
pipe 53 and the filling pipe 21 are arranged connected to the first recirculation
pipe 51 by means of an electrovalve 55, with the result that when the electrovalve
55 is in a first position all the fluid pumped by the recirculation pump 52 is directed
towards the trim through the second recirculation pipe 53. In contrast, when the electrovalve
55 is in a second position the fluid pumped by the recirculation pump 52 is directed
to the cavity 13 through the filling pipe 21.
[0020] In other embodiments shown in Figures 5 and 6, the second recirculation pipe 53,
the filling pipe 21 and the first recirculation pipe 51 are arranged connected to
each other by means of a three-way connector 56, with the result that the fluid propelled
by the recirculation pump 52 branches off in two, depending on the load losses of
the filling pipe 21 and the second recirculation pipe 53, reaching the tub 9 and consequently
the inside of the drum 6 through the trim and filling the cavity 13 of the door 3
respectively.
[0021] In the embodiment shown in Figure 7, the washing machine 1 comprises, in addition
to the three-way connector 56, a two-way electrovalve 57 in the second recirculation
pipe 53 upstream from said connector 56, with the result that when the two-way electrovalve
57 is open, the fluid flows through said second recirculation pipe 53, whereas if
the electrovalve 57 is closed, the fluid flows through the filling pipe 21. From this
position, when the electrovalve 57 is open again, the fluid flows respectively through
the second recirculation pipe 53 towards the tub 9 and through the filling pipe 21
towards the cavity 13. In this embodiment the filling pipe 21 is designed so that
it has greater load losses than the second recirculation pipe 53, with the result
that when the electrovalve 57 is open the fluid tends to go through the second recirculation
pipe 53.
[0022] Additionally, in the embodiments shown in Figures 3 to 7, the emptying pipe 31 is
arranged connected to the first drainage pipe 61 by means of a connector 64, although
in other embodiments said emptying pipe 31 may be connected directly to the drainage
pump 62. In the embodiments shown in Figures 3, 4, 5 and 7, the emptying of said cavity
13 is performed by mechanical means, particularly as a result of the siphon effect,
by means of which the emptying pipe 31 follows a trajectory that is substantially
an inverted U shape, whereas in the embodiment shown in Figure 6, said emptying of
the cavity 13 is performed by electro-mechanical means. As a result, in the embodiment
shown in Figure 6, the emptying means 30 comprise an emptying pump 35 through which
the emptying pipe 31 is connected to the drainage pipe 61.
[0023] Furthermore, in the second embodiment shown in Figure 4, the emptying means 30 also
comprise an electrovalve 32 that ensures the cavity 13 is emptied completely, even
when the cavity 13 has a minimum amount of fluid. To achieve this the electrovalve
32 is arranged in the emptying pipe 31 upstream from the U-shaped trajectory of said
emptying pipe 31, with the result that when the electrovalve 32 is closed the fluid
housed in the emptying pipe 31 upstream from the electrovalve 32 does not allow air
to enter said emptying pipe 31, thereby enabling the siphon effect to occur.
[0024] In addition, in the embodiments shown in Figures 3 to 7, the washing machine 1 comprises
safety means 40 arranged connected to the window 5, which ensure that the level of
fluid comprised in the cavity 13 does not exceed a maximum preset level, the fluid
running off towards the drainage means 60 in the event that said maximum level is
reached due to the fact that the emptying means 30 are not operating correctly, for
example because the emptying pipe 31 is blocked. The safety means 40 thus comprise
a safety pipe 41 that is arranged connected to the first drainage pipe 61 through
the connector 64, although in other embodiments it may be connected directly to the
drainage pump 62. In the embodiments shown in Figures 3 to 7, the safety pipe 41 is
arranged connected to the window 5, preferably beneath opening/closing means of the
door 3, not shown in the figures.
[0025] Furthermore, in other embodiments not shown in the figures, the emptying means 30
and filling means 20 of the cavity 13 may be independent of the recirculation means
50 and the drainage means 60 of the tub 9, in other words the emptying means 30 may
comprise an emptying pump connected to the emptying pipe 31, independent of the drainage
pump 62 of the tub 9, as well as a filling pump that takes the fluid from the emptying
pipe to the cavity 13 by means of the filling pipe 21. In the event that the cavity
13 is to be filled manually, said filling pump is not required.
[0026] Additionally, in all the embodiments shown the filling pipe 21, the emptying pipe
31 and the safety pipe 41 pass through the support 4 of the washing machine 1 towards
the door 3 through a hinge 10, shown in Figure 1.
[0027] Finally, although reference is made throughout the description to a front-loading
washing machine, in other embodiments not shown in the figures the washing machine
may be top-loading type.
1. Washing machine that comprises an opening (2) included in a support (4) and a door
(3) adapted to close the opening (2), the door (3) comprising a cavity (13), characterised in that the cavity (13) is adapted to house a load.
2. Washing machine according to the preceding claim, comprising fastening means (12)
that keep the load inside the cavity (13).
3. Washing machine according to the preceding claim, wherein the fastening means (12)
comprise at least one limiting surface (12b) that delimits the cavity (13).
4. Washing machine according to any of the preceding claims, comprising filling means
(20) adapted to introduce a fluid into the cavity (13), and emptying means (30) adapted
to empty the fluid housed in said cavity (13).
5. Washing machine according to the preceding claim, wherein the door comprises a window
(5), the surfaces (5d) of which delimit the cavity (13), the emptying means (30) being
arranged connected to a lower part (5b) of the window (5).
6. Washing machine according to either of claims 4 or 5, wherein the emptying means (30)
comprise an electrovalve (32) that ensures the cavity (13) is emptied completely.
7. Washing machine according to any of claims 4 to 6, comprising a tub (9) and drainage
means (60) that remove the fluid housed in the tub (9), the filling means (20) of
the cavity (13) comprising at least one filling pipe (21) that is arranged connected
to the drainage means (60).
8. Washing machine according to any of claims 4 to 6, wherein it comprises a tub (9),
a tub cover (8), a trim connected to the tub cover (8), drainage means (60) that remove
the fluid housed in the tub (9) and recirculation means (50), arranged connected to
the drainage means (60), which recirculate at least part of the drained fluid towards
the trim, wherein the filling means (20) of the cavity (13) are arranged connected
to the recirculation means (50) of the fluid housed in the tub (9).
9. Washing machine according to the preceding claim, wherein the recirculation means
(50) of the fluid housed in the tub (9) comprise at least one recirculation pump (52)
arranged connected to the drainage means (60) of said fluid and at least one first
recirculation pipe (51) connected to the recirculation pump (52), and the filling
means (20) of the cavity (13) comprise at least one filling pipe (21) that is arranged
connected to the first recirculation pipe (51).
10. Washing machine according to the preceding claim, wherein the recirculation means
(50) of the fluid housed in the tub (9) comprise a second recirculation pipe (53)
that is arranged connected to the first recirculation pipe (51) and to the filling
pipe (21) of the cavity (13).
11. Washing machine according to the preceding claim, wherein the first recirculation
pipe (51), the second recirculation pipe (53) and the filling pipe (21) of the cavity
(13) are arranged connected to each other by means of an electrovalve (55).
12. Washing machine according to any of claims 7 to 11, wherein the drainage means (60)
of the fluid housed in the tub (9) comprise at least one drainage pump (62), and a
first drainage pipe (61) that connects the tub (9) to the drainage pump (62), and
the emptying means (30) of the cavity (13) comprise an emptying pipe (31) that is
arranged connected to the first drainage pipe (61).
13. Washing machine according to any of claims 7 to 12, wherein it comprises safety means
(40) that drain said cavity (13) when a maximum level of fluid is reached in said
cavity (13).
14. Washing machine according to the preceding claim, wherein the safety means (40) comprise
at least one safety pipe (41) that is arranged connected to the drainage means (60).
15. Washing machine according to any of the preceding claims, wherein the opening (2)
is arranged on a front wall (4a) of the support (4), the loading of the washing machine
(1) being performed frontally.