EP2243874A1 - Porthole door for laundry washing machines and household appliance provided with said porthole door - Google Patents

Porthole door for laundry washing machines and household appliance provided with said porthole door Download PDF

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Publication number
EP2243874A1
EP2243874A1 EP20090005669 EP09005669A EP2243874A1 EP 2243874 A1 EP2243874 A1 EP 2243874A1 EP 20090005669 EP20090005669 EP 20090005669 EP 09005669 A EP09005669 A EP 09005669A EP 2243874 A1 EP2243874 A1 EP 2243874A1
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EP
European Patent Office
Prior art keywords
porthole door
door
annular frame
inner annular
porthole
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.)
Granted
Application number
EP20090005669
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German (de)
French (fr)
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EP2243874B1 (en
Inventor
Fabio Poloni
Marco Rigo
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Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Priority to EP09005669A priority Critical patent/EP2243874B1/en
Publication of EP2243874A1 publication Critical patent/EP2243874A1/en
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Publication of EP2243874B1 publication Critical patent/EP2243874B1/en
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    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention relates to a porthole door for laundry washing machines and to a household appliance provided with said porthole door.
  • the present invention relates to a porthole door for a home front-loading laundry washing machine, to which the following description refers purely by way of example.
  • front-loading laundry washing machines normally comprise a substantially parallelepiped-shaped outer box casing, which is provided with a substantially circular laundry loading/unloading opening on the front face of the casing; and a porthole door which is hinged to the front face of the casing, close to the peripheral edge of the laundry loading/unloading opening, to rotate about a vertical axis to and from a closing position, in which the peripheral edge of the door rests completely against the front face of the casing to watertight seal the laundry loading/unloading opening.
  • the porthole door usually consists of a cup-shaped body which is made of annealed transparent glass and has a flared outer peripheral edge; and of an annular porthole bearing structure which is rigidly coupled to the outer peripheral edge of the cup-shaped body and is hinged to the front face of the casing.
  • the annular porthole bearing structure consists of two separate annular frames which are located, coaxial to the cup-shaped body, on opposite sides of the flared outer peripheral edge of the cup-shaped body, and are rigidly coupled to one another via screws or similar so to tightly clamp the outer peripheral edge of the cup-shaped body.
  • the rear annular frame i.e. the porthole annular frame which comes in abutment against the front face of the casing when the door is placed in the closing position, is usually made of metal material and is fixed in swiveling manner to the front face of casing via a hinge; whereas the front annular frame is usually made of plastic material and houses the handle allowing the user to manually unlock the door from the machine casing.
  • Aim of the present invention is to provide a porthole door for laundry washing machines which is cheaper to produce and lighter in weight than today's porthole doors with a plastic cup-shaped body.
  • a porthole door for laundry washing machines as claimed in Claim 1 and preferably, though not necessarily, in any one of the dependant Claims.
  • a household appliance provided as claimed in Claim 15 and preferably, though not necessarily, in any one of the dependent Claims.
  • number 1 indicates as a whole a porthole door suitable to be used in a household appliance provided with a porthole door, like a home front-loading laundry washing and/or drying machine 2.
  • the laundry washing and/or drying machine 2 comprises a substantially parallelepiped-shaped outer box casing 3, which is provided with a substantially circular laundry loading/unloading opening 1a formed on its front face 4; and the porthole door 1 is hinged to the front face 4 of casing 3, close to the peripheral edge of the laundry loading/unloading opening 1a, to rotate freely about a preferably, though not necessarily, vertical axis, to and from a closing position, in which the peripheral edge of the porthole door 1 completely rests against the front face 4 of casing 3 and watertight seal opening 1a,
  • porthole door 1 has a rear face 1r which abuts against the front face 4 of casing 3 when the porthole door 1 is in the closing position, and a front face 1f which faces the outside of casing 3 when the porthole door 1 is in the closing position, and in the example shown it is connected in swiveling manner to casing 3 via a hinge 5 which is rigidly attached to front face 4, close to the peripheral edge of the laundry loading/unloading opening 1a, so to let the porthole door 1 freely rotate about a vertical axis A locally substantially tangent to front face 4.
  • the porthole door 1 comprises a preferably, though not necessarily, circular, substantially basin-shaped body 11 which is made of transparent or semi-transparent plastic material, forms the front face 1f of the porthole door 1, and is provided with an outer peripheral flange 11a having a substantially U-shaped transversal cross section.
  • the outer peripheral flange 11a forms part of the front face 1f of the porthole door 1, and ends with a preferably, though not necessarily, cylindrical annular collar which is faced to, and spaced from, the main annular lateral wall 11b of the basin-shaped body 11, so as to delimit, together with the main annular lateral wall 11b of the basin-shaped body 11, an outer annular seat 11' whose concavity faces the outer surface of the main annular lateral wall 11b.
  • concavity of annular seat 11' faces the front face 4 of casing 3 when the porthole door 1 is placed in the closing position.
  • the outer peripheral flange 11a is realized in one piece with the basin-shaped body 11 via an injection molding process so as to form a unique plastic shell 11 having a preferably, though not necessarily, constant thickness; and the porthole door 1 also comprises an inner annular frame 12 which is made of an opaque plastic material (i.e. a material not allowing light to pass through), and is over-injected into the outer annular seat 11' of the basin-shaped body or shell 11 during the same injection molding process, immediately after the hardening of the plastic material forming the basin-shaped body 11, so as to be permanently fixed to the basin-shaped body or shell 11.
  • an opaque plastic material i.e. a material not allowing light to pass through
  • the inner annular frame 12 is over-injected into the annular seat 11' of the basin-shaped body 11 within preferably, though not necessarily, 30 seconds from the complete hardening of the plastic material forming the basin-shaped body 11.
  • the melting temperature of the plastic material forming the basin-shaped body or shell 11 is higher than the melting temperature of the plastic material forming the inner annular frame 12.
  • the inner annular frame 12 is structured for being directly coupled to the hinge 5 connecting the porthole door 1 to the front face 4 of casing 3, and is preferably, though not necessarily, shaped so as to form a seat 5a for hinge 5.
  • the basin-shaped body or shell 11 is preferably, though not necessarily, made of transparent polyester and/or polycarbonate; whereas the inner annular frame 12 is preferably, though not necessarily, made of opaque polyester and/or polystyrene and/or acrylonitrile-butadiene-styrene (commonly known as ABS).
  • ABS acrylonitrile-butadiene-styrene
  • the porthole door 1 optionally comprises also an auxiliary annular cover 13 which is made of an opaque plastic material, and is structured for covering up the annular seat 11' of the basin-shaped body 11 so to completely hide the inner annular frame 12.
  • the auxiliary annular cover 13 is preferably, though not necessarily, made of an opaque polyester and/or polycarbonate and is formed separately from the inner annular frame 12 via a traditional injection molding process, and is structure for being directly coupled and firmly anchored to the inner annular frame 12 via a number of a snap-lock locking pins or tongues 14 realized on the inner annular frame 12 and/or on the auxiliary annular cover 13.
  • annular cover 13 may be firmly anchored to the inner annular frame 12 via metal screw, rivets, welding or gluing.
  • the porthole door 1 is finally provided with a manually-operated door-lock device 15 which is structured for selectively lock the porthole door 1 to the machine casing 3 when the porthole door 1 is in the closing position.
  • a manually-operated door-lock device 15 which is structured for selectively lock the porthole door 1 to the machine casing 3 when the porthole door 1 is in the closing position.
  • the inner annular frame 12 is structured for supporting the door-lock device 15, and the door-lock device 15 consists of a hooked catch lever 16 which is fixed in swivelling manner to the inner annular frame 12 of porthole door 1, and protrudes from the inner annular frame 12 towards the front face 4 of casing 3, extending through the auxiliary annular cover 13 if present, so as to enter into a corresponding slot 16a realized in front wall 4, next to the laundry loading/unloading opening 1a, and there firmly engage the machine casing 3; of a spring mechanism (not shown) designed to keep the hooked catch lever 16 in a given rest position allowing the distal end of catch lever 16 to hook on the edge of the machine casing 3, into the slot 16a in front wall 4; and of a manually-operated handle 17 which is housed in a through opening 17a realized on the outer peripheral flange 11a of the basin-shaped body or shell 11, and is fixed in swiveling manner to the inner annular frame 12 so to selective
  • the manually-operated handle 17 is able to selectively move the hooked catch lever 16 away from the rest position, allowing the distal end of catch lever 16 to unlock the edge of the machine casing 3 when the porthole door 1 is placed in the closing position.
  • the user acting directly on handle 17, the user can manually release the porthole door 1 from casing 3 and rotate the porthole door 1 about axis A.
  • the production process of porthole door 1 comprises the step of injecting a given quantity of a transparent or semi-transparent plastic material, into the first mould inner cavity negatively reproducing the shape of the basin-shaped body 11, outer peripheral flange 11a included, so as to form the whole basin-shaped body 11 via a unique injection of plastic material; and the step of over-injecting, immediately after the hardening of the plastic material forming the basin-shaped body 11, a given quantity of an opaque plastic material, into a second mould inner cavity partly delimited by the outer annular seat 11' of basin-shaped body 11 and negatively reproducing the shape of the inner annular frame 12, so to form the inner annular frame 12 directly inside the outer annular seat 11' of basin-shaped body 11.
  • porthole door 1 provides several advantages. First of all, assembly of the porthole door 1 is significantly simplified because the inner annular frame 12 is rigidly and permanently fixed to the basin-shaped body or shell 11 during the injection molding process, thus reducing production costs of the porthole door.
  • the present structure provides a porthole door having an improved aesthetic appearance.
  • Such improved aesthetic effect is due to the peripheral flange 11a being transparent or semi-transparent and forming the front face of the porthole door and due to the inner annular frame 12 being opaque and forming the rear face of the peripheral flange 11a.
  • the contrast between the transparent peripheral flange 11a and the opaque inner annular frame 12 in the background provides the aesthetic effect when the porthole door, -in closed position-, is watched by the user.
  • the present porthole structure allows manufacturing the transparent shell body 11 with a relatively small thickness thereby reducing the amount of the costly transparent material needed for its production since the inner annular frame 12 made of less costly opaque material provides the supporting function for the hinge 5 and the manually-operated door-lock device 15.
  • basin-shaped body or shell 11 and inner annular frame 12 during the same injection molding process, give designers much more freedom to harmonize the shape of the porthole door to that of the casing front face.
  • the basin-shaped body 11 is over-inject above the inner annular frame 12, immediately after the hardening of the plastic material forming the inner annular frame 12.
  • basin-shaped body 11 and inner annular frame 12 are still made during the same injection molding process, but the injection sequence starts with the injection, into the mould, of the plastic material forming the inner annular frame 12.
  • the plastic material forming the basin-shaped body or shell 11 is obviously injected into the mould immediately after the complete hardening of the plastic material forming the inner annular frame 12.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

Porthole door (1) for laundry washing machines (2) and similar consisting of a substantially basin-shaped body (11) which is made of transparent or semi-transparent plastic material, and is provided with an outer peripheral flange (11a) having a substantially U-shaped transversal cross section, and of an inner annular frame (12) which is made of an opaque plastic material, and is permanently fixed into the annular seat (11') formed by said outer peripheral flange (11a); the outer peripheral flange (11a) being realized in one piece with the rest of basin-shaped body (11) via an injection molding process, so as to form a unique plastic shell (11); said unique plastic shell (11) and said inner annular frame (12) being over-injected one on the other during the same injection molding process.

Description

  • The present invention relates to a porthole door for laundry washing machines and to a household appliance provided with said porthole door.
  • More specifically, the present invention relates to a porthole door for a home front-loading laundry washing machine, to which the following description refers purely by way of example.
  • As is known, front-loading laundry washing machines normally comprise a substantially parallelepiped-shaped outer box casing, which is provided with a substantially circular laundry loading/unloading opening on the front face of the casing; and a porthole door which is hinged to the front face of the casing, close to the peripheral edge of the laundry loading/unloading opening, to rotate about a vertical axis to and from a closing position, in which the peripheral edge of the door rests completely against the front face of the casing to watertight seal the laundry loading/unloading opening.
  • The porthole door usually consists of a cup-shaped body which is made of annealed transparent glass and has a flared outer peripheral edge; and of an annular porthole bearing structure which is rigidly coupled to the outer peripheral edge of the cup-shaped body and is hinged to the front face of the casing.
  • The annular porthole bearing structure consists of two separate annular frames which are located, coaxial to the cup-shaped body, on opposite sides of the flared outer peripheral edge of the cup-shaped body, and are rigidly coupled to one another via screws or similar so to tightly clamp the outer peripheral edge of the cup-shaped body.
  • The rear annular frame, i.e. the porthole annular frame which comes in abutment against the front face of the casing when the door is placed in the closing position, is usually made of metal material and is fixed in swiveling manner to the front face of casing via a hinge; whereas the front annular frame is usually made of plastic material and houses the handle allowing the user to manually unlock the door from the machine casing.
  • Despite being intrinsically highly safety, this kind of porthole door is relatively expensive to produce because of the relative large size of the annealed-glass cup-shaped body, and it is quite heavy thus requiring the use of oversized heavy-duty metal hinges. To solve these drawbacks, in the recent years some household appliance manufacturers replaced the annealed-glass cup-shaped body with a cup-shaped body made of transparent plastic material. GB20008624 and US-2003/0110813 disclose this kind of plastic porthole doors.
  • Aim of the present invention is to provide a porthole door for laundry washing machines which is cheaper to produce and lighter in weight than today's porthole doors with a plastic cup-shaped body.
  • According to the present invention, there is provided a porthole door for laundry washing machines as claimed in Claim 1 and preferably, though not necessarily, in any one of the dependant Claims.
  • According to the present invention, there is also provided a household appliance provided as claimed in Claim 15 and preferably, though not necessarily, in any one of the dependent Claims.
  • A non-limiting embodiment of the present invention will be described by way of example with reference to the accompanying drawings, in which:
    • Figure 1 shows a isometric view, with parts removed for clarity, of a front-loading laundry washing machine provided with a porthole door realized in accordance with the teachings of the present invention;
    • Figure 2 shows a larger-scale, partly-exploded isometric view of the Figure 1 porthole door;
    • Figure 3 shows a section view of the Figure 2 porthole door; and
    • Figures 4 and 5 show two larger-scale, detailed views of the Figure 3 porthole door.
  • With reference to Figure 1, number 1 indicates as a whole a porthole door suitable to be used in a household appliance provided with a porthole door, like a home front-loading laundry washing and/or drying machine 2.
  • The laundry washing and/or drying machine 2 comprises a substantially parallelepiped-shaped outer box casing 3, which is provided with a substantially circular laundry loading/unloading opening 1a formed on its front face 4; and the porthole door 1 is hinged to the front face 4 of casing 3, close to the peripheral edge of the laundry loading/unloading opening 1a, to rotate freely about a preferably, though not necessarily, vertical axis, to and from a closing position, in which the peripheral edge of the porthole door 1 completely rests against the front face 4 of casing 3 and watertight seal opening 1a,
  • More specifically, porthole door 1 has a rear face 1r which abuts against the front face 4 of casing 3 when the porthole door 1 is in the closing position, and a front face 1f which faces the outside of casing 3 when the porthole door 1 is in the closing position, and in the example shown it is connected in swiveling manner to casing 3 via a hinge 5 which is rigidly attached to front face 4, close to the peripheral edge of the laundry loading/unloading opening 1a, so to let the porthole door 1 freely rotate about a vertical axis A locally substantially tangent to front face 4.
  • Differently from the porthole doors used in today's front-loading laundry washing machines, the porthole door 1 comprises a preferably, though not necessarily, circular, substantially basin-shaped body 11 which is made of transparent or semi-transparent plastic material, forms the front face 1f of the porthole door 1, and is provided with an outer peripheral flange 11a having a substantially U-shaped transversal cross section.
  • More specifically, with reference to Figures 2 and 3, the outer peripheral flange 11a forms part of the front face 1f of the porthole door 1, and ends with a preferably, though not necessarily, cylindrical annular collar which is faced to, and spaced from, the main annular lateral wall 11b of the basin-shaped body 11, so as to delimit, together with the main annular lateral wall 11b of the basin-shaped body 11, an outer annular seat 11' whose concavity faces the outer surface of the main annular lateral wall 11b. In other words, concavity of annular seat 11' faces the front face 4 of casing 3 when the porthole door 1 is placed in the closing position.
  • In addition to the above, the outer peripheral flange 11a is realized in one piece with the basin-shaped body 11 via an injection molding process so as to form a unique plastic shell 11 having a preferably, though not necessarily, constant thickness; and the porthole door 1 also comprises an inner annular frame 12 which is made of an opaque plastic material (i.e. a material not allowing light to pass through), and is over-injected into the outer annular seat 11' of the basin-shaped body or shell 11 during the same injection molding process, immediately after the hardening of the plastic material forming the basin-shaped body 11, so as to be permanently fixed to the basin-shaped body or shell 11.
  • More specifically, the inner annular frame 12 is over-injected into the annular seat 11' of the basin-shaped body 11 within preferably, though not necessarily, 30 seconds from the complete hardening of the plastic material forming the basin-shaped body 11. Obviously, the melting temperature of the plastic material forming the basin-shaped body or shell 11 is higher than the melting temperature of the plastic material forming the inner annular frame 12.
  • With reference to Figure 2, the inner annular frame 12 is structured for being directly coupled to the hinge 5 connecting the porthole door 1 to the front face 4 of casing 3, and is preferably, though not necessarily, shaped so as to form a seat 5a for hinge 5.
  • In the example shown, the basin-shaped body or shell 11 is preferably, though not necessarily, made of transparent polyester and/or polycarbonate; whereas the inner annular frame 12 is preferably, though not necessarily, made of opaque polyester and/or polystyrene and/or acrylonitrile-butadiene-styrene (commonly known as ABS).
  • With reference to Figures 1 and 2, the porthole door 1 optionally comprises also an auxiliary annular cover 13 which is made of an opaque plastic material, and is structured for covering up the annular seat 11' of the basin-shaped body 11 so to completely hide the inner annular frame 12.
  • More specifically, in the example shown the auxiliary annular cover 13 is preferably, though not necessarily, made of an opaque polyester and/or polycarbonate and is formed separately from the inner annular frame 12 via a traditional injection molding process, and is structure for being directly coupled and firmly anchored to the inner annular frame 12 via a number of a snap-lock locking pins or tongues 14 realized on the inner annular frame 12 and/or on the auxiliary annular cover 13. Clearly, in a different embodiment, annular cover 13 may be firmly anchored to the inner annular frame 12 via metal screw, rivets, welding or gluing.
  • Preferably, though not necessarily, the porthole door 1 is finally provided with a manually-operated door-lock device 15 which is structured for selectively lock the porthole door 1 to the machine casing 3 when the porthole door 1 is in the closing position.
  • With reference to Figure 2, in the example shown, the inner annular frame 12 is structured for supporting the door-lock device 15, and the door-lock device 15 consists of a hooked catch lever 16 which is fixed in swivelling manner to the inner annular frame 12 of porthole door 1, and protrudes from the inner annular frame 12 towards the front face 4 of casing 3, extending through the auxiliary annular cover 13 if present, so as to enter into a corresponding slot 16a realized in front wall 4, next to the laundry loading/unloading opening 1a, and there firmly engage the machine casing 3; of a spring mechanism (not shown) designed to keep the hooked catch lever 16 in a given rest position allowing the distal end of catch lever 16 to hook on the edge of the machine casing 3, into the slot 16a in front wall 4; and of a manually-operated handle 17 which is housed in a through opening 17a realized on the outer peripheral flange 11a of the basin-shaped body or shell 11, and is fixed in swiveling manner to the inner annular frame 12 so to selectively engage and tilt the hooked catch lever 16, overcoming the elastic force of the spring mechanism.
  • In other words, the manually-operated handle 17 is able to selectively move the hooked catch lever 16 away from the rest position, allowing the distal end of catch lever 16 to unlock the edge of the machine casing 3 when the porthole door 1 is placed in the closing position. Thus, acting directly on handle 17, the user can manually release the porthole door 1 from casing 3 and rotate the porthole door 1 about axis A.
  • Operation of porthole door 1 and laundry washing and/or drying machine 2 are clearly inferable from the above description, with no further explanation required.
  • The production process of porthole door 1, in turn, comprises the step of injecting a given quantity of a transparent or semi-transparent plastic material, into the first mould inner cavity negatively reproducing the shape of the basin-shaped body 11, outer peripheral flange 11a included, so as to form the whole basin-shaped body 11 via a unique injection of plastic material; and the step of over-injecting, immediately after the hardening of the plastic material forming the basin-shaped body 11, a given quantity of an opaque plastic material, into a second mould inner cavity partly delimited by the outer annular seat 11' of basin-shaped body 11 and negatively reproducing the shape of the inner annular frame 12, so to form the inner annular frame 12 directly inside the outer annular seat 11' of basin-shaped body 11.
  • The particular structure of porthole door 1 provides several advantages. First of all, assembly of the porthole door 1 is significantly simplified because the inner annular frame 12 is rigidly and permanently fixed to the basin-shaped body or shell 11 during the injection molding process, thus reducing production costs of the porthole door.
  • Further the present structure provides a porthole door having an improved aesthetic appearance. Such improved aesthetic effect is due to the peripheral flange 11a being transparent or semi-transparent and forming the front face of the porthole door and due to the inner annular frame 12 being opaque and forming the rear face of the peripheral flange 11a. The contrast between the transparent peripheral flange 11a and the opaque inner annular frame 12 in the background provides the aesthetic effect when the porthole door, -in closed position-, is watched by the user.
  • Additionally, the present porthole structure allows manufacturing the transparent shell body 11 with a relatively small thickness thereby reducing the amount of the costly transparent material needed for its production since the inner annular frame 12 made of less costly opaque material provides the supporting function for the hinge 5 and the manually-operated door-lock device 15.
  • Moreover, production of basin-shaped body or shell 11 and inner annular frame 12 during the same injection molding process, give designers much more freedom to harmonize the shape of the porthole door to that of the casing front face.
  • Clearly, changes may be made either to porthole door 1 or to laundry washing and/or drying machine 2 as described herein without, however, departing from the scope of the present invention.
  • For example, in case the melting temperature of the plastic material forming the basin-shaped body or shell 11 is lower than the melting temperature of the opaque plastic material forming the inner annular frame 12, the basin-shaped body 11 is over-inject above the inner annular frame 12, immediately after the hardening of the plastic material forming the inner annular frame 12.
  • In other words, since the plastic material having the higher melting temperature is to be injected first, basin-shaped body 11 and inner annular frame 12 are still made during the same injection molding process, but the injection sequence starts with the injection, into the mould, of the plastic material forming the inner annular frame 12. The plastic material forming the basin-shaped body or shell 11 is obviously injected into the mould immediately after the complete hardening of the plastic material forming the inner annular frame 12.

Claims (15)

  1. Porthole door (1) for laundry washing machines (2) and similar, having a rear face (1r) which abuts against the machine casing (3) when the porthole door (1) is in the closing position, and a front face (1f) which faces the outside of the machine casing (3) when the porthole door (1) is in the closing position; the porthole door (1) being characterized by comprising:
    - a shell body (11) which is made of transparent or semi-transparent plastic material, and is provided with an outer peripheral flange (11a) which defines part of the front face (1f) of the porthole door (1), and is provided, on the rear-face side thereof, of an annular seat (11'); and
    - an inner annular frame (12) which is made of an opaque plastic material, and is permanently fixed into the annular seat (11') formed by said outer peripheral flange (11a);
    the outer peripheral flange (11a) being realized in one piece with the rest of shell body (11) via an injection molding process, so as to form a unique transparent or semi-transparent plastic element (11); said unique transparent or semi-transparent plastic element (11) and said inner annular frame (12) being over-injected one on the other during the same injection molding process.
  2. Porthole door as claimed in Claim 1, characterized in that the outer peripheral flange (11a) has a substantially U-shaped transversal cross section.
  3. Porthole door as claimed in Claim 1 or 2, characterized in that the shell body (11) is a substantially basin-shaped body (11).
  4. Porthole door as claimed in any one of the foregoing Claims, characterized in that said inner annular frame (12) is over-injected into the annular seat (11') formed by the outer peripheral flange (11a) of said shell body (11).
  5. Porthole door as claimed in any one of the foregoing Claims, characterized in that said inner annular frame (12) is structured for being coupled to the hinge (5) connecting the porthole door (1) to the casing (3) of the laundry washing machine (2) or similar.
  6. Porthole door as claimed in Claim 5, characterized in that said inner annular frame (12) is shaped so as to form a seat (5a) for said hinge (5).
  7. Porthole door as claimed in any one of the foregoing Claims, characterized by also comprising an auxiliary annular cover (13) which is made of an opaque plastic material, and is structured for covering up the annular seat (11') of the shell body (11) so to hide the inner annular frame (12).
  8. Porthole door as claimed in Claim 7, characterized in that said auxiliary annular cover (13) is structure for being directly coupled and firmly anchored to the inner annular frame (12).
  9. Porthole door as claimed in Claim 8, characterized in that said auxiliary annular cover (13) is structure for being firmly anchored to the inner annular frame (12) via a number of a snap-lock locking means (14) realized on the inner annular frame (12) and/or on the auxiliary annular cover (13).
  10. Porthole door as claimed in any one of the foregoing Claims, comprising a manually-operated door-lock device (15) which is structured for selectively lock the porthole door (1) to the casing (3) of the laundry washing machine (2) or similar, characterized in that said inner annular frame (12) is structured for supporting said manually-operated door-lock device (15).
  11. Porthole door as claimed in Claim 10, characterized in that said manually-operated door-lock device (15) comprises
    - a hooked catch lever (16) which is fixed in
    swivelling manner to the inner annular frame (12) of the porthole door (1), and protrudes from the inner
    annular frame (12) towards the casing (3) of the laundry washing machine (2) or similar, so as to enter into a corresponding slot (16a) realized in said casing (3);
    - a spring mechanism designed to keep the hooked catch lever (16) in a given rest position allowing the distal end of the hooked catch lever (16) to hook on the edge of the casing (3) of the laundry washing machine (2) or similar, into the slot (16a) on said casing (3); and
    - a manually-operated handle (17) which is housed in a through opening (17a) realized on the outer peripheral flange (11a) of the shell body (11), and is fixed in swiveling manner to the inner annular frame (12) so to selectively engage and tilt the hooked catch lever (16), overcoming the elastic force of the spring mechanism.
  12. Porthole door as claimed in any one of the foregoing Claims, characterized in that the shell body (11) is made of a transparent polyester and/or polycarbonate.
  13. Porthole door as claimed in any one of the foregoing Claims, characterized in that the inner annular frame (12) is made of opaque polyester and/or polystyrene and/or acrylonitrile-butadiene-styrene.
  14. Household appliance (2) comprising a substantially parallelepiped-shaped outer box casing (3) which is provided with a main opening (1a) on its front face (4), and a porthole door (1) which is hinged to the front face (4) of the casing (3), close to the peripheral edge of said main opening (1a), to rotate about a reference axis to and from a closing position in which the peripheral edge of the porthole door rests against the front face (4) of the casing (3) to seal said main opening (1a); the household appliance (2) being characterized in that said porthole door (1) is a porthole door as claimed in anyone of Claims 1-14.
  15. Household appliance as claimed in Claim 15, characterized in that of being a laundry washing and/or drying machine (2).
EP09005669A 2009-04-22 2009-04-22 Porthole door for laundry washing machines and household appliance provided with said porthole door Active EP2243874B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09005669A EP2243874B1 (en) 2009-04-22 2009-04-22 Porthole door for laundry washing machines and household appliance provided with said porthole door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005669A EP2243874B1 (en) 2009-04-22 2009-04-22 Porthole door for laundry washing machines and household appliance provided with said porthole door

Publications (2)

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EP2243874A1 true EP2243874A1 (en) 2010-10-27
EP2243874B1 EP2243874B1 (en) 2012-07-04

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2402499A1 (en) * 2010-07-02 2012-01-04 Panasonic Corporation Laundry processing apparatus
EP2439324A1 (en) * 2010-10-07 2012-04-11 Electrolux Home Products Corporation N.V. Door for laundry machine
EP2455536A1 (en) * 2010-11-23 2012-05-23 Electrolux Home Products Corporation N.V. Door for a laundry machine having a door hinge
WO2012153261A1 (en) * 2011-05-11 2012-11-15 BSH Bosch und Siemens Hausgeräte GmbH Door for front-loading washing machine
WO2014109518A1 (en) * 2013-01-09 2014-07-17 Samsung Electronics Co., Ltd. Washing machine and method of manufacturing door thereof
CN104342885A (en) * 2013-08-08 2015-02-11 海尔集团公司 Inspection window for washing machine and roller washing machine
EP2871279A1 (en) * 2013-11-07 2015-05-13 Samsung Electronics Co., Ltd Washing machine and method of manufacturing door thereof
AU2014205881B2 (en) * 2013-01-09 2016-03-31 Samsung Electronics Co., Ltd. Washing machine and method of manufacturing door thereof
WO2016070889A1 (en) * 2014-11-03 2016-05-12 Arcelik Anonim Sirketi Laundry washing/drying machine front door with a mechanically improved locking mechanism
CN112095304A (en) * 2019-06-18 2020-12-18 青岛海尔滚筒洗衣机有限公司 Door body of clothes treatment equipment, assembling method and clothes treatment equipment
WO2022099164A1 (en) * 2020-11-09 2022-05-12 Eastman Chemical Company Washing machine door assembly

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GB941134A (en) * 1960-03-14 1963-11-06 Ass Elect Ind Improvements relating to domestic washing and like equipment
GB2008624A (en) 1977-11-22 1979-06-06 Terruzzi A A Porthole, Particularly for Washing Machines
GB2237293A (en) * 1989-10-23 1991-05-01 Sviluppo Settori Impiego Srl Window for electrical household appliances
US20030110813A1 (en) 2000-06-27 2003-06-19 Kai Nitschmann Porthole window for a front-loading drum-type washing machine
WO2006080788A1 (en) * 2005-01-25 2006-08-03 Lg Electronics Inc. A door for a washing or drying machine
EP1762650A2 (en) * 2005-09-13 2007-03-14 Miele & Cie. KG Porthole door for a front load washing machine

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Publication number Priority date Publication date Assignee Title
GB941134A (en) * 1960-03-14 1963-11-06 Ass Elect Ind Improvements relating to domestic washing and like equipment
GB2008624A (en) 1977-11-22 1979-06-06 Terruzzi A A Porthole, Particularly for Washing Machines
GB2237293A (en) * 1989-10-23 1991-05-01 Sviluppo Settori Impiego Srl Window for electrical household appliances
US20030110813A1 (en) 2000-06-27 2003-06-19 Kai Nitschmann Porthole window for a front-loading drum-type washing machine
WO2006080788A1 (en) * 2005-01-25 2006-08-03 Lg Electronics Inc. A door for a washing or drying machine
EP1762650A2 (en) * 2005-09-13 2007-03-14 Miele & Cie. KG Porthole door for a front load washing machine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2402499A1 (en) * 2010-07-02 2012-01-04 Panasonic Corporation Laundry processing apparatus
EP2439324A1 (en) * 2010-10-07 2012-04-11 Electrolux Home Products Corporation N.V. Door for laundry machine
EP2455536A1 (en) * 2010-11-23 2012-05-23 Electrolux Home Products Corporation N.V. Door for a laundry machine having a door hinge
US20120144750A1 (en) * 2010-11-23 2012-06-14 Electrolux Home Products Corporation N.V. Door and Hinge for a Laundry Machine
RU2571015C2 (en) * 2011-05-11 2015-12-20 Бсх Хаусгарете Гмбх Door of washing machine with front loading
WO2012153261A1 (en) * 2011-05-11 2012-11-15 BSH Bosch und Siemens Hausgeräte GmbH Door for front-loading washing machine
CN103703179A (en) * 2011-05-11 2014-04-02 Bsh博世和西门子家用电器有限公司 Door for front-loading washing machine
RU2571015C9 (en) * 2011-05-11 2016-09-27 Бсх Хаусгерете Гмбх Door of washing machine with front loading
RU2615263C2 (en) * 2013-01-09 2017-04-04 Самсунг Электроникс Ко., Лтд. Washing machine and method for producing its doors
AU2014205881B2 (en) * 2013-01-09 2016-03-31 Samsung Electronics Co., Ltd. Washing machine and method of manufacturing door thereof
WO2014109518A1 (en) * 2013-01-09 2014-07-17 Samsung Electronics Co., Ltd. Washing machine and method of manufacturing door thereof
US10590590B2 (en) 2013-01-09 2020-03-17 Samsung Electronics Co., Ltd. Washing machine and method of manufacturing door thereof
CN104342885A (en) * 2013-08-08 2015-02-11 海尔集团公司 Inspection window for washing machine and roller washing machine
KR20150053145A (en) * 2013-11-07 2015-05-15 삼성전자주식회사 Washing Machine and Manufacturing Method of Door
EP2871279A1 (en) * 2013-11-07 2015-05-13 Samsung Electronics Co., Ltd Washing machine and method of manufacturing door thereof
US9790637B2 (en) 2013-11-07 2017-10-17 Samsung Electronics Co., Ltd. Washing machine and method of manufacturing door thereof
WO2016070889A1 (en) * 2014-11-03 2016-05-12 Arcelik Anonim Sirketi Laundry washing/drying machine front door with a mechanically improved locking mechanism
CN112095304A (en) * 2019-06-18 2020-12-18 青岛海尔滚筒洗衣机有限公司 Door body of clothes treatment equipment, assembling method and clothes treatment equipment
CN112095304B (en) * 2019-06-18 2023-08-22 合肥海尔滚筒洗衣机有限公司 Door body of clothes treatment equipment, assembling method and clothes treatment equipment
WO2022099164A1 (en) * 2020-11-09 2022-05-12 Eastman Chemical Company Washing machine door assembly

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