EP3623524B1 - Door-hinge assembly in a washing machine - Google Patents
Door-hinge assembly in a washing machine Download PDFInfo
- Publication number
- EP3623524B1 EP3623524B1 EP19196113.5A EP19196113A EP3623524B1 EP 3623524 B1 EP3623524 B1 EP 3623524B1 EP 19196113 A EP19196113 A EP 19196113A EP 3623524 B1 EP3623524 B1 EP 3623524B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hinge
- door
- channels
- bodies
- hinge assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005406 washing Methods 0.000 title claims description 42
- 239000003599 detergent Substances 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 239000008237 rinsing water Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000009429 electrical wiring Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
Definitions
- the present invention relates to a door-hinge assembly for a washing machine and to a washing machine with the door-hinge assembly.
- Washing machines comprising a supporting and housing structure, inside which a washing tub is housed provided with an opening which can be closed by a door hinged to the supporting and housing structure are known.
- a basket to accommodate the laundry to be washed is rotationally arranged inside the washing tub.
- washing machines comprise a hydraulic system for feeding mains water to the washing tub and a detergent dispensing system with one or more detergent tanks which contain detergent or the other treatment substances (liquid or powder) for a single washing cycle (single-dose containers) or for a plurality of washing cycles (multi-dose containers).
- the hydraulic and detergent dispensing systems may comprise one or more pumps and ducts for conveying water and for dosing and dispensing detergent.
- WO2010/125538A1 discloses a washing machine door hinge that is considered a closest state of the art for the invention.
- a door-hinge assembly is suggested in a washing machine having a housing which forms a laundry loading opening, in which the door-hinge assembly comprises:
- the continuous ducts thus created provide a hydraulic connection for conveying liquid detergent and/or rinsing water, and/or a channel for the passage of electrical wires, not subject to unforeseen deformations, protected from the external environment, compact and not encroaching on the space of other components of the washing machine.
- the one or more rotary coupling interfaces isolate the interior of the first and second channels from the external environment in a liquid-tight manner, e.g. by means of an elastomeric sealing ring between a respective first and second channel.
- first and second hinge bodies to be used directly as hydraulic pipes and, in the case of electrical wiring, it protects the electrical wires extended in the first and second channels from moisture or drops of water which frequently occur at the laundry loading opening.
- a door-hinge assembly for/in a washing machine 2 of the type having a housing 3 which forms a laundry loading opening 4, is indicated by the reference numeral 1 as a whole.
- the door-hinge assembly 1 comprises a door 5 configured to close the laundry loading opening 4 and a hinge 6.
- the hinge 6 comprises one or more first hinge bodies 7 which are fixedly connected or connectable to the housing 3 and one or more second hinge bodies 8 connected to the door 5.
- the one or more first hinge bodies 7 are pivotally connected to said one or more second hinge bodies 8 about a single hinge axis 9, so as to (be able to) obtain a pivoting connection, about the hinge axis 9, between the door 5 and one or more first hinge bodies 8 and, therefore, the housing 3.
- the door-hinge assembly 1 comprises one or more first channels 10 formed inside said one or more first hinge bodies 7, and one or more second channels 11 formed inside said one or more second hinge bodies 8.
- the one or more second channels 11 are connected to said one or more first channels 10 in one or more corresponding pivoting coupling interfaces 12 about the hinge axis 9, so as to obtain one or more continuous ducts 13 extending from the one or more first hinge bodies 8 or the housing 3 through the hinge 6 up to the door 5.
- the continuous ducts 13 thus created provide a hydraulic connection for conveying liquid detergent and/or rinsing water and/or a channel for the passage of electrical wires.
- the hydraulic connection or wire duct thus created is not subject to unplanned deformations, is protected from the outside environment, is compact and does not encroach upon the space of the other components of the washing machine 2.
- the one or more rotary coupling interfaces 12 isolate in a liquid-tight manner the interior of the first and second channels 10, 11 from the outside environment, e.g. by means of an elastomeric sealing ring 14 between a respective first channel 10 and second channel 11.
- first and second hinge bodies 7, 8 to be used directly as hydraulic pipes and, in the case of electrical wiring, protects the electrical wires extended in the first and second channels 10, 11 from moisture or drops of water which frequently occur at the laundry loading opening 4.
- the first channel 10 of the first hinge body 7 extends from a first inlet end 16 to a first outlet end 15.
- the second channel 11 of the second hinge body 8 extends from a second inlet end 18 to a second outlet end 17.
- the first outlet end 15 is integrally and firmly connected or connectable to the housing 3.
- the first inlet end 18 is integrally and firmly connected or connectable to the door 5.
- the first inlet end 16 is pivotally connected to the second outlet end 17 at the pivoting coupling interface 12,.
- At least one of the first hinge bodies 7 forms a first base portion 28 extending transversely with respect to the hinge axis 9 and connected or connectable to the housing 3 and forming the first outlet ends 15 of the first channels 10, as well as a plurality of first branch portions 29 which either extend or bifurcate from the first base portion 28 (at a first branch zone 30 of the first hinge body 7) in a substantially parallel or concentric direction with respect to the hinge axis 9 and which are connected to the one or more second hinge bodies 8 and form the first inlet end or ends 16 of the first channel or channels 10.
- two first branch portions 29 extend from a first base portion 28 in mutually opposite directions, respectively.
- the first base portion 28 is bent as an elbow, e.g. with an angle from 60° to 120°, preferably about 90°, around a bending axis 31 parallel to the hinge axis 9, so as to form a first leg 35 and a second leg 36 ( Figures 6 and 7 ).
- the one or more second hinge bodies 8 form a second base portion 32, extending substantially parallel to the hinge axis 9 and forming the second inlet end 17 of the second channel 11, and connected to the first hinge body 7, as well as a second branch portion 33, which extends from the second base portion 32 (at a second branch area 34 of the second hinge body 8) in a transverse direction to the hinge axis 9 and which is connected to the door 5 and forms the second inlet end or ends 18 of the second channel or channels 11.
- first and second hinge bodies 7 and 8 are configured (shaped and positioned) so that, with the door 5 in closing position:
- This configuration is very compact and allows the creation of an external surface in sight of the door 5 parallel to the front face of the housing 3.
- the second inlet end 18 of the second channels 11 forms an externally tapered frusto-conical connector 37 with a circumferential undercut or circumferential step, e.g. adapted to a hydraulic connection by snapping or interference with a pipe inside the door 5.
- the hinge 6 also comprises one or more third hinge bodies 21 pivotally connected to the one or more first hinge bodies 7 (e.g. by the interposition of a bearing 49 or a bushing, figures 12 , 16 ) about the hinge axis 9 and permanently connected to door 5, so as to create an auxiliary rotating connection about the hinge axis 9 between the door 5 and the one or more first hinge bodies 7 and, consequently, the housing 3, e.g. for the purpose of structurally strengthening the hinge 6.
- the hinge 6 also comprises one or more third hinge bodies 21 pivotally connected to the one or more first hinge bodies 7 (e.g. by the interposition of a bearing 49 or a bushing, figures 12 , 16 ) about the hinge axis 9 and permanently connected to door 5, so as to create an auxiliary rotating connection about the hinge axis 9 between the door 5 and the one or more first hinge bodies 7 and, consequently, the housing 3, e.g. for the purpose of structurally strengthening the hinge 6.
- the one or more third hinge bodies 21 comprise a box-like profile ( figures 3 , 4 , 10, 11 ), e.g. open or closed, e.g. metal or plastic, which box-like profile forms:
- the one or more third hinge bodies 21 comprise a first half-shell 43 and a second half-shell 43' which jointly define the hinge bodies 40 and, possibly, the cavity 41, connected to each other so as to embrace the first hinge body 7.
- the first half-shell 43 forms part of a first portion 45 of a frame 44 of the door 5
- the second half-shell 43' forms part of a second portion 45' of the frame 44 which can be connected to the first portion 45 to form the frame 44 of the door 5 ( figures 1, 2 , 3 , 11 and sequence of figures 13 - 17 ).
- the hinge 6 further comprises a single mounting plate 19, which is integral or formed in one piece with all the first hinge bodies 7 and provided with two mounting holes 20 for mounting the door-hinge assembly 1 to the housing 3.
- the hinge 6 or washing machine 2 further comprises an auxiliary plate 46 which can be connected to the single mounting plate 19 and which supports a plurality of hydraulic connectors 47, e.g. hydraulic elbow connectors, each having a first end which can be connected (e.g. by means of a male-female insertion) to one of the first channels 10 and a second end which can be connected to a pipe arranged outside the door 5.
- a plurality of hydraulic connectors 47 e.g. hydraulic elbow connectors, each having a first end which can be connected (e.g. by means of a male-female insertion) to one of the first channels 10 and a second end which can be connected to a pipe arranged outside the door 5.
- the auxiliary plate 46 groups together and supports in the desired positions a plurality of or all the hydraulic connections (washing machine side) to be connected to the door-hinge assembly 1, thereby facilitating a pre-assembly of the hydraulic system 42 and/or of the detergent dispensing system 22 of the washing machine 2.
- the hydraulic connectors 47 are supported in the auxiliary plate 46 with the possibility of position adjustment, e.g. by guided housing inside one or more adjustment slots 48 formed in the auxiliary plate 46.
- the first channels 10 comprise at least one channel free from branches or are all without branches ( figure 8 ).
- first base portion 28 of the first hinge body 7 can form two or more first outlet ends 15 of two or more corresponding first channels 10 and the first branch portions 29 each can form only one of the first inlet ends 16, respectively.
- the two or more first channels 10 can thus extend individually each in one of the first branch portions 29 and together in parallel in the first base portion 28.
- the first channels 10 may comprise at least one channel with a Y-shaped branch ( figure 9 ) .
- the first channel 10 may have only a first inlet end 16 and a plurality of first outlet ends 15, or only a first outlet end 15 and a plurality of first inlet ends 16.
- the hinge 6 comprises two hinge units, in which each hinge unit comprises:
- said two continuous ducts 13 are mutually separate and independent. Therefore, each of the continuous ducts 13 can be used to convey different treatment substances without the risk of undesirable mixing. Furthermore, the separate continuous ducts 13 can be used for different purposes, e.g. a first continuous duct 13 can be used as a hydraulic duct for detergents and/or rinsing water and a second continuous duct 13 can be used as a channel for the passage of electrical wires.
- a washing machine 2 comprises a housing 3 which forms a laundry loading opening 4 and the door-hinge assembly 1 connected to the housing 3.
- the washing machine 2 further comprises:
- the washing machine 1 further comprises a hydraulic system 42 for feeding mains water to the washing tub 38 and a detergent dispensing system 22 for dosing and/or conveying detergent into the washing tub 38, in which at least one of the either the hydraulic system 42 or the detergent dispensing system 22 is connected to the one or more first channels 10 and second channels 11 of the door-hinge assembly 1, e.g. in flow communication or through a passage of electrical cables.
- the detergent delivery system 22 comprises one or more dosing pumps 23 located in housing 3 outside the door 5, and one or more detergent tanks or compartments 24 located inside the door 5, or vice versa, in which the dosing pump(s) 23 and the detergent tanks or compartments 24 are connected in flow communication (ducts 25, 26, 27) by means of the one or more first channels 10 and second channels 11 of the door-hinge assembly 1.
Description
- The present invention relates to a door-hinge assembly for a washing machine and to a washing machine with the door-hinge assembly.
- Washing machines comprising a supporting and housing structure, inside which a washing tub is housed provided with an opening which can be closed by a door hinged to the supporting and housing structure are known. A basket to accommodate the laundry to be washed is rotationally arranged inside the washing tub.
- These washing machines comprise a hydraulic system for feeding mains water to the washing tub and a detergent dispensing system with one or more detergent tanks which contain detergent or the other treatment substances (liquid or powder) for a single washing cycle (single-dose containers) or for a plurality of washing cycles (multi-dose containers).
- The hydraulic and detergent dispensing systems may comprise one or more pumps and ducts for conveying water and for dosing and dispensing detergent.
- In order to make the most of the space available in the washing machine, it is known and desirable to position some components of the detergent dispensing system, e.g. the detergent containers and/or the dosing pump, inside the door of the washing machine.
- This implies the need to extend hydraulic ducts and/or electrical wires (to operate the dosing pump or the selection valves) from the housing into the door and vice versa.
- Due to the hinged connection of the door to the housing and its frequent opening and closing movements, the hydraulic ducts and/or electrical wiring between the housing and the door are difficult to implement and subject to undesired stresses. For example, it has been suggested to extend the hydraulic ducts and/or electrical wires close to the door hinge, near which the distance and relative movement between door and housing are reduced.
- The duct and wiring solutions close to the hinge known to the inventors require foldable, bulky ducts and wiring to accommodate the relative movement and to provide the necessary protection. These solutions known to the inventors are expensive, not very reliable in the long term and structurally complex.
WO2010/125538A1 discloses a washing machine door hinge that is considered a closest state of the art for the invention. - Therefore, it is the object of the present invention to provide a door-hinge assembly for washing machine, having features such as to improve the conduction of fluids between the housing of the washing machine and the door and/or to improve the electrical wiring between the housing of the washing machine and the door.
- It is a specific object of the invention to provide a door-hinge assembly for washing machine, having features such as to allow a reliable and protected conduction of fluids.
- It is a further specific object of the invention to provide a door-hinge assembly for washing machine, with features such as to allow a reliable and protected electrical wiring.
- It is a further specific object of the invention to provide a door-hinge assembly for washing machine which also implements a hydraulic conveying device or a channel for electrical wiring, which is structurally simple, compact and robust.
- These and other objects are achieved by a door-hinge assembly for washing machine according to
claim 1 and by a washing machine unit with said door-hinge assembly. - The dependent claims relate to advantageous and preferred embodiments.
- According to an aspect of the invention, a door-hinge assembly is suggested in a washing machine having a housing which forms a laundry loading opening, in which the door-hinge assembly comprises:
- a door configured to close the laundry loading opening,
- a hinge comprising one or more first hinge bodies which are fixedly connected to the housing and one or more second hinge bodies connected to the door,
wherein said one or more first hinge bodies are pivotally connected to said one or more second hinge bodies about a single hinge axis, so as to obtain a pivoting connection, about the hinge axis, between said door and said housing,
characterized in that it comprises - one or more first channels formed inside said one or more first hinge bodies, and
- one or more second channels formed inside said one or more second hinge bodies and connected to said one or more first channels in one or more corresponding pivoting coupling interfaces about said hinge axis, so as to obtain one or more continuous ducts extending from the housing through the hinge up to the door.
- The continuous ducts thus created provide a hydraulic connection for conveying liquid detergent and/or rinsing water, and/or a channel for the passage of electrical wires, not subject to unforeseen deformations, protected from the external environment, compact and not encroaching on the space of other components of the washing machine.
- According to the invention, the one or more rotary coupling interfaces isolate the interior of the first and second channels from the external environment in a liquid-tight manner, e.g. by means of an elastomeric sealing ring between a respective first and second channel.
- This allows the first and second hinge bodies to be used directly as hydraulic pipes and, in the case of electrical wiring, it protects the electrical wires extended in the first and second channels from moisture or drops of water which frequently occur at the laundry loading opening.
- In order to better understand the invention and appreciate its advantages, some non-limiting embodiments will be described below by way of example with reference to the accompanying drawings, in which:
-
figure 1 is a diagrammatic section view of a washing machine according to an embodiment of the invention; -
figure 2 is a diagrammatic section view of a detergent dispensing system of a washing machine according to an embodiment of the invention; -
figure 3 is an axonometric view of a door-hinge assembly according to an embodiment of the invention, in which the door is in closing position; -
figure 4 is an axonometric view of the door-hinge assembly infigure 3 , in which the door is in opening position; -
figure 5 is an exploded view of some functional components of the door-hinge assembly and a detergent dispensing system according to an embodiment; -
figure 6 is a detailed view of a hinge of the door-hinge assembly according to an embodiment, -
figure 7 is an enlarged view of a detail of the hinge shown infigure 6 , -
figure 8 is a diagrammatic section view of a detail of the door-hinge assembly according to an embodiment of the invention; -
figure 9 is a diagrammatic section view of a detail of the door-hinge assembly according to a further embodiment of the invention; -
figure 10 is a diagrammatic top view of a detail of the door-hinge assembly according to an embodiment; -
figure 11 is a diagrammatic side view of the detail infigure 10 , -
figure 12 is an exploded view of the hinge of the door-hinge assembly according to an embodiment, -
figures 13 and17 show an assembling sequence of the door-hinge assembly according to an embodiment. - With reference to the figures, a door-hinge assembly for/in a
washing machine 2 of the type having ahousing 3 which forms alaundry loading opening 4, is indicated by thereference numeral 1 as a whole. - The door-
hinge assembly 1 comprises adoor 5 configured to close thelaundry loading opening 4 and ahinge 6. - The
hinge 6 comprises one or morefirst hinge bodies 7 which are fixedly connected or connectable to thehousing 3 and one or moresecond hinge bodies 8 connected to thedoor 5. - The one or more
first hinge bodies 7 are pivotally connected to said one or moresecond hinge bodies 8 about asingle hinge axis 9, so as to (be able to) obtain a pivoting connection, about thehinge axis 9, between thedoor 5 and one or morefirst hinge bodies 8 and, therefore, thehousing 3. - The door-
hinge assembly 1 comprises one or morefirst channels 10 formed inside said one or morefirst hinge bodies 7, and one or moresecond channels 11 formed inside said one or moresecond hinge bodies 8. - The one or more
second channels 11 are connected to said one or morefirst channels 10 in one or more correspondingpivoting coupling interfaces 12 about thehinge axis 9, so as to obtain one or morecontinuous ducts 13 extending from the one or morefirst hinge bodies 8 or thehousing 3 through thehinge 6 up to thedoor 5. - The
continuous ducts 13 thus created provide a hydraulic connection for conveying liquid detergent and/or rinsing water and/or a channel for the passage of electrical wires. The hydraulic connection or wire duct thus created is not subject to unplanned deformations, is protected from the outside environment, is compact and does not encroach upon the space of the other components of thewashing machine 2. - According to an embodiment, the one or more
rotary coupling interfaces 12 isolate in a liquid-tight manner the interior of the first andsecond channels elastomeric sealing ring 14 between a respectivefirst channel 10 andsecond channel 11. - This allows the first and
second hinge bodies second channels laundry loading opening 4. - According to the invention, the
first channel 10 of thefirst hinge body 7 extends from afirst inlet end 16 to afirst outlet end 15. Similarly, thesecond channel 11 of thesecond hinge body 8 extends from asecond inlet end 18 to asecond outlet end 17. Thefirst outlet end 15 is integrally and firmly connected or connectable to thehousing 3. Thefirst inlet end 18 is integrally and firmly connected or connectable to thedoor 5. Thefirst inlet end 16 is pivotally connected to thesecond outlet end 17 at thepivoting coupling interface 12,. - According to the invention, at least one of the
first hinge bodies 7 forms afirst base portion 28 extending transversely with respect to thehinge axis 9 and connected or connectable to thehousing 3 and forming the first outlet ends 15 of thefirst channels 10, as well as a plurality offirst branch portions 29 which either extend or bifurcate from the first base portion 28 (at afirst branch zone 30 of the first hinge body 7) in a substantially parallel or concentric direction with respect to thehinge axis 9 and which are connected to the one or moresecond hinge bodies 8 and form the first inlet end orends 16 of the first channel orchannels 10. - According to an embodiment, two
first branch portions 29 extend from afirst base portion 28 in mutually opposite directions, respectively. - According to a further embodiment, the
first base portion 28 is bent as an elbow, e.g. with an angle from 60° to 120°, preferably about 90°, around abending axis 31 parallel to thehinge axis 9, so as to form afirst leg 35 and a second leg 36 (Figures 6 and7 ). - This facilitates the use of the
hinge 6 withthicker doors 5 and reconciles the structural requirements ofhinge 6 with the requirements of fluid conduction or protection of electrical wires. - According to the invention, the one or more
second hinge bodies 8 form asecond base portion 32, extending substantially parallel to thehinge axis 9 and forming thesecond inlet end 17 of thesecond channel 11, and connected to thefirst hinge body 7, as well as asecond branch portion 33, which extends from the second base portion 32 (at asecond branch area 34 of the second hinge body 8) in a transverse direction to thehinge axis 9 and which is connected to thedoor 5 and forms the second inlet end orends 18 of the second channel orchannels 11. - According to an embodiment, the first and
second hinge bodies door 5 in closing position: - the
first branch portions 29 of thefirst hinge body 7, and - the
second base portions 32 and thesecond branch portions 33 of thesecond hinge body 8, and - the
hinge axis 9 - This configuration is very compact and allows the creation of an external surface in sight of the
door 5 parallel to the front face of thehousing 3. - According to an embodiment, the
second inlet end 18 of thesecond channels 11 forms an externally tapered frusto-conical connector 37 with a circumferential undercut or circumferential step, e.g. adapted to a hydraulic connection by snapping or interference with a pipe inside thedoor 5. - According to a further embodiment, the
hinge 6 also comprises one or morethird hinge bodies 21 pivotally connected to the one or more first hinge bodies 7 (e.g. by the interposition of abearing 49 or a bushing,figures 12 ,16 ) about thehinge axis 9 and permanently connected todoor 5, so as to create an auxiliary rotating connection about thehinge axis 9 between thedoor 5 and the one or morefirst hinge bodies 7 and, consequently, thehousing 3, e.g. for the purpose of structurally strengthening thehinge 6. This allows, for example, to optimize thesecond hinge body 8 for dimensioning and positioningcontinuous ducts 13 independently from the structural function of thehinge 6 and to optimize thethird hinge body 21 for dimensioning and structural positioning, regardless of the function of thehinge 6 as a hydraulic duct or as a channel for electrical wires. - According to an embodiment, the one or more
third hinge bodies 21 comprise a box-like profile (figures 3 ,4 ,10, 11 ), e.g. open or closed, e.g. metal or plastic, which box-like profile forms: - hinge
seats 40 which pivotally accommodate corresponding hinge portions (e.g. the aforesaid branch portions 29) of thefirst hinge body 7, and - a
cavity 41 which at least partially accommodates and envelops (thefirst base portion 28 of) thefirst hinge body 7. - This reconciles the requirements of compactness, protection and robustness of the
hinge 6. - According to an embodiment, the one or more
third hinge bodies 21 comprise a first half-shell 43 and a second half-shell 43' which jointly define thehinge bodies 40 and, possibly, thecavity 41, connected to each other so as to embrace thefirst hinge body 7. Advantageously, the first half-shell 43 forms part of afirst portion 45 of a frame 44 of thedoor 5 and the second half-shell 43' forms part of a second portion 45' of the frame 44 which can be connected to thefirst portion 45 to form the frame 44 of the door 5 (figures 1, 2 ,3 ,11 and sequence offigures 13 - 17 ). - According to an embodiment (
figures 5 ,6 ), thehinge 6 further comprises a single mountingplate 19, which is integral or formed in one piece with all thefirst hinge bodies 7 and provided with two mountingholes 20 for mounting the door-hinge assembly 1 to thehousing 3. - This facilitates the pre-assembly of the hinge-
door assembly 1 and the assembly of thewashing machine 2 and reduces the number of connecting parts. - According to a further embodiment (
figures 5 ,6 ), thehinge 6 orwashing machine 2 further comprises anauxiliary plate 46 which can be connected to the single mountingplate 19 and which supports a plurality ofhydraulic connectors 47, e.g. hydraulic elbow connectors, each having a first end which can be connected (e.g. by means of a male-female insertion) to one of thefirst channels 10 and a second end which can be connected to a pipe arranged outside thedoor 5. - The
auxiliary plate 46 groups together and supports in the desired positions a plurality of or all the hydraulic connections (washing machine side) to be connected to the door-hinge assembly 1, thereby facilitating a pre-assembly of thehydraulic system 42 and/or of thedetergent dispensing system 22 of thewashing machine 2. - According to an advantageous embodiment, the
hydraulic connectors 47 are supported in theauxiliary plate 46 with the possibility of position adjustment, e.g. by guided housing inside one ormore adjustment slots 48 formed in theauxiliary plate 46. - This allows a versatile use of the same type of
auxiliary plate 46 for different door-hinge assemblies with different center distances between thefirst channels 10. - According to an embodiment, the
first channels 10 comprise at least one channel free from branches or are all without branches (figure 8 ). - For example, the
first base portion 28 of thefirst hinge body 7 can form two or more first outlet ends 15 of two or more correspondingfirst channels 10 and thefirst branch portions 29 each can form only one of the first inlet ends 16, respectively. The two or morefirst channels 10 can thus extend individually each in one of thefirst branch portions 29 and together in parallel in thefirst base portion 28. - According to an alternative embodiment, the
first channels 10 may comprise at least one channel with a Y-shaped branch (figure 9 ). In this case, thefirst channel 10 may have only afirst inlet end 16 and a plurality of first outlet ends 15, or only afirst outlet end 15 and a plurality of first inlet ends 16. - This allows, for example, the distribution of a single inlet flow to a plurality of different uses, e.g. to a plurality of valves or dosing pumps or detergent compartments. This also allows the use of a larger number of portions of the
hinge 6 to define a larger number ofdifferent ducts 13. - According to a preferred embodiment, the
hinge 6 comprises two hinge units, in which each hinge unit comprises: - a single
first body hinge 7 forming twofirst channels 10 therein, - two
second hinge bodies 8 forming a singlesecond channel 11 therein, respectively, and in which each of the first twochannels 10 is respectively connected to only one of the twosecond channels 11, in order to create twocontinuous channels 13 which are distinct and extend from thehousing 3 through thehinge 6 up to thedoor 5. - Advantageously, said two
continuous ducts 13 are mutually separate and independent. Therefore, each of thecontinuous ducts 13 can be used to convey different treatment substances without the risk of undesirable mixing. Furthermore, the separatecontinuous ducts 13 can be used for different purposes, e.g. a firstcontinuous duct 13 can be used as a hydraulic duct for detergents and/or rinsing water and a secondcontinuous duct 13 can be used as a channel for the passage of electrical wires. - According to an embodiment, a
washing machine 2 comprises ahousing 3 which forms alaundry loading opening 4 and the door-hinge assembly 1 connected to thehousing 3. - The
washing machine 2 further comprises: - a
washing tub 38 arranged in thehousing 3 and forming a tub opening at theloading opening 4, - a
laundry basket 39 pivotally arranged inside thewashing tub 38 and having a basket opening formed at the loading opening (figure 1 ). - The
washing machine 1 further comprises ahydraulic system 42 for feeding mains water to thewashing tub 38 and adetergent dispensing system 22 for dosing and/or conveying detergent into thewashing tub 38, in which at least one of the either thehydraulic system 42 or thedetergent dispensing system 22 is connected to the one or morefirst channels 10 andsecond channels 11 of the door-hinge assembly 1, e.g. in flow communication or through a passage of electrical cables. - According to an embodiment, the
detergent delivery system 22 comprises one or more dosing pumps 23 located inhousing 3 outside thedoor 5, and one or more detergent tanks or compartments 24 located inside thedoor 5, or vice versa, in which the dosing pump(s) 23 and the detergent tanks or compartments 24 are connected in flow communication (ducts first channels 10 andsecond channels 11 of the door-hinge assembly 1. - Obviously, those skilled in art may make further changes and variations to the door-
hinge assembly 1 and to thewashing machine 2 described herein without departing from the scope of protection of the invention, as defined in the following claims.
while the
Claims (14)
- A door-hinge assembly (1) for a washing machine (2) having a housing (3) forming a laundry loading opening (4), wherein the door-hinge assembly (1) comprises:- a door (5) configured to open and close the laundry loading opening (4);- a hinge (6) comprising one or more first hinge bodies (7) which are fixedly connectable to the housing (3) and one or more second hinge bodies (8) connected to the door (5);
wherein said one or more first hinge bodies (7) are pivotally connected to said one or more second hinge bodies (8) about a hinge axis (9), so as to obtain a pivoting connection, about the hinge axis (9), between said door (5) and said housing (3);- one or more first channels (10) formed inside said one or more first hinge bodies (7),- one or more second channels (11) formed inside said one or more second hinge bodies (8) and connected to said one or more first channels (7) in one or more pivoting coupling interfaces (12), so as to obtain one or more continuous ducts (13) extending from the housing (3) through the hinge (6) up to the door (5) wherein said one or more pivoting coupling interfaces (12) isolate in a liquid-tight manner the interior of the first channel (10) and the second channel (12) from the outside environment and said continuous ducts (13) provide a hydraulic connection for conveying liquid detergent and/or rinsing water and/or a channel for the passage of electrical wires,wherein:- the first channel (10) of the first hinge body (7) extends from a first inlet end (16) to a first outlet end (15);- the second channel (11) of the second hinge body (8) extends from a second inlet end (18) to a second outlet end (17);- the first outlet end (15) is connected fixed and stationary with the housing (3);- the second inlet end (18) is connected to the door (5);- the first inlet end (16) is pivotally connected, at the pivoting coupling interface (12), to the second outlet end (17),characterized in that at least one of the first hinge bodies (7) forms:- a first base portion (28) extending transversely with respect to the hinge axis (9) and connected to the housing (3) and forming the first outlet ends (15) of the first channels (10), as well as- a plurality of first branch portions (29) extending from the first base portion (28) in a substantially concentric direction with respect to the hinge axis (9) and which are connected to the second hinge bodies (8) and form the first inlet ends (16) of the first channels (10),and in that at least one of the second hinge bodies (8) forms:- a second base portion (32) extending substantially parallel to the hinge axis (9) and forming the second inlet end (17) of the second channel (11) and connected to the first hinge body (7), as well as- a second branch portion (33), extending from the second base portion (32) in a direction transverse to the hinge axis (9) and which is connected to the door (5) and forms the second inlet end (18) of the second channel (11). - A door-hinge assembly (1) according to claim 1, wherein the hinge (6) further comprises one or more third hinge bodies (21) pivotally connected to the first hinge bodies (7) about the hinge axis (9) and fixedly connected to the door (5), so as to obtain an auxiliary pivoting connection, about the hinge axis (9), between the door (5) and the one or more first hinge bodies (7).
- A door-hinge assembly (1) according to claim 2, wherein said third hinge body (21) comprises a box-like profile forming:- hinge seats (40) which pivotally accommodate corresponding hinge portions (29) of the first hinge body (7), and- a cavity (41) which at least partially accommodates a base portion (28) of the first hinge body (7).
- A door-hinge assembly (1) according to claim 3, wherein the third hinge body (21) comprises a first half-shell (43) and a second half-shell (43') connected to each other so as to embrace the first hinge body (7) and defining together the hinge seats (40) and the cavity (41).
- A door-hinge assembly (1) according to claim 4, wherein the first half-shell (43) forms part of a first portion (45) of a frame (44) of the door (5) and the second half-shell (43') forms part of a second portion (45') of the frame (44) which is connectable to the first portion (45) to form the frame (44) of the door (5).
- A door-hinge assembly (1) according to any one of the preceding claims, wherein two first branch portions (29) extend from a first base portion (28), respectively, in opposite directions.
- A door-hinge assembly (1) according to any one of the preceding claims, wherein the first base portion (28) is bent at an angle from 60° to 120° about a bending axis (31) parallel to the hinge axis (9).
- A door-hinge assembly (1) according to any one of the preceding claims, wherein the second inlet end (18) of the second channels (11) forms an externally tapered frusto-conical connector (37) with a circumferential undercut for a hydraulic connection to a pipe inside the door (5).
- A door-hinge assembly (1) according to any one of the preceding claims, wherein the continuous channels (13) are devoid of branches.
- A door-hinge assembly (1) according to any one of the preceding claims, wherein the first base portion (28) of the first hinge body (7) forms two or more first outlet ends (15) of two or more first channels (10) and the first branch portions (29) each form only one of the first inlet ends (16), respectively.
- A door-hinge assembly (1) according to any one of the preceding claims, wherein the pivoting coupling interface (12) comprises an elastomeric sealing ring (14) interposed between the first channel (10) and the second channel (11).
- A door-hinge assembly (1) according to any one of the preceding claims, comprising:- a mounting plate (19) which is integral with all the first hinge bodies (7) and provided with mounting portions (20) for mounting the door-hinge assembly (1) to the housing (3),- an auxiliary plate (46) which is connectable to the mounting plate (19) and which supports a plurality of hydraulic connectors (47) each having a first end which can be connected to one of the first channels (10) and a second end which can be connected to a pipe arranged outside the door (5).
- A door-hinge assembly (1) according to claim 12, wherein the hydraulic connectors (47) are supported in the auxiliary plate (46) with adjustable positioning.
- A washing machine (2) comprising:- a housing (3) forming a laundry loading opening (4), and- a door-hinge assembly (1) according to any one of the preceding claims.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT201800008657 | 2018-09-17 |
Publications (2)
Publication Number | Publication Date |
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EP3623524A1 EP3623524A1 (en) | 2020-03-18 |
EP3623524B1 true EP3623524B1 (en) | 2021-05-19 |
Family
ID=64427126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19196113.5A Active EP3623524B1 (en) | 2018-09-17 | 2019-09-09 | Door-hinge assembly in a washing machine |
Country Status (3)
Country | Link |
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EP (1) | EP3623524B1 (en) |
CN (1) | CN110904643B (en) |
ES (1) | ES2881900T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114108258A (en) * | 2020-08-28 | 2022-03-01 | 无锡小天鹅电器有限公司 | Detergent feeding device and clothes treatment equipment with same |
CN112267260A (en) * | 2020-10-20 | 2021-01-26 | 海信(山东)冰箱有限公司 | Washing machine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT969759B (en) * | 1972-10-20 | 1974-04-10 | San Giorgio Elettrodomesti | MACHINE FOR TREATING BIANCHEPIA ON WHICH A COMPONENT WITH ELECTRIC CONTROL IS MOUNTED ON THE LOADING DOOR |
IT1394005B1 (en) * | 2009-04-30 | 2012-05-17 | Indesit Co Spa | WASHING MACHINE WITH FRONTAL HOUSEHOLD USE, IN PARTICULAR WASHING MACHINE OR WASHING MACHINE |
KR102219934B1 (en) * | 2014-03-28 | 2021-02-25 | 삼성전자주식회사 | Drum Washing Machine |
CN104466826B (en) * | 2014-11-26 | 2017-09-01 | 珠海格力电器股份有限公司 | A kind of door body hinge wire harness restraining structure and refrigerator |
KR102202721B1 (en) * | 2015-02-25 | 2021-01-13 | 삼성전자주식회사 | Waching machine |
CN106032637B (en) * | 2015-11-02 | 2019-01-29 | Lg电子株式会社 | Device for clothing processing |
CN206070196U (en) * | 2016-08-31 | 2017-04-05 | 苏州艾克夫电子有限公司 | The hinge component of use in washing machine high stability |
US10294712B2 (en) * | 2016-11-14 | 2019-05-21 | Whirlpool Corporation | Appliance door assembly |
CN106757994B (en) * | 2017-01-13 | 2019-02-12 | 无锡小天鹅股份有限公司 | Roller washing machine |
-
2019
- 2019-09-09 ES ES19196113T patent/ES2881900T3/en active Active
- 2019-09-09 EP EP19196113.5A patent/EP3623524B1/en active Active
- 2019-09-17 CN CN201910874096.7A patent/CN110904643B/en active Active
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RU2019129103A (en) | 2021-03-16 |
EP3623524A1 (en) | 2020-03-18 |
CN110904643B (en) | 2022-07-12 |
CN110904643A (en) | 2020-03-24 |
ES2881900T3 (en) | 2021-11-30 |
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