EP2938773A1 - A washing machine having a front door - Google Patents

A washing machine having a front door

Info

Publication number
EP2938773A1
EP2938773A1 EP13811908.6A EP13811908A EP2938773A1 EP 2938773 A1 EP2938773 A1 EP 2938773A1 EP 13811908 A EP13811908 A EP 13811908A EP 2938773 A1 EP2938773 A1 EP 2938773A1
Authority
EP
European Patent Office
Prior art keywords
welding
frame
door frame
frame cover
door
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
EP13811908.6A
Other languages
German (de)
French (fr)
Other versions
EP2938773B1 (en
Inventor
Sabahaddin ATAY
Ferudun Arabaci
Turhan Mutlu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL13811908T priority Critical patent/PL2938773T3/en
Publication of EP2938773A1 publication Critical patent/EP2938773A1/en
Application granted granted Critical
Publication of EP2938773B1 publication Critical patent/EP2938773B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Definitions

  • the present invention relates to a washing machine having a drum wherein laundry to be washed is to be disposed, a loading opening through which laundry can be loaded to the drum, a front door closing the loading opening and having a frame cover and a door frame connected to the frame cover by means of welding, and each of the frame cover and the door frame having respective welding lines on at least one portion of a side facing a respective other of the frame cover and the door frame.
  • Washing machines comprise a drum realizing a washing process inside, a loading opening through which laundry is loaded to the drum, a front door closing the loading opening and a door glass provided between the front door and the drum.
  • the front door comprises a door frame and a frame cover connected to the door frame, and the door frame is made of a lower cost material than the frame cover.
  • a connection between a frame cover and a door frame belonging to the front door of a washing machine is disclosed.
  • a front-loading washing machine is described having a door that includes an annular door frame, a plastic frame cover covering the door frame, and a circular window component with an edge held between the door frame and the frame cover.
  • the door frame and the cover are bound by means of fastening elements.
  • the fastening element has a bonding element that is made/bonded integrally as a single piece with the frame cover, and one end of the bonding element, which protrudes through an aperture in the door frame opposite the frame cover, is widened toward the aperture edge, forming a head fastening the door frame by a form-fitted connection.
  • Objects of the present invention include to provide a washing machine having a front door, in which fitting precision and welding strength between the door frame and the frame cover are improved.
  • the invention provides a solution to these objects as defined in the independent claim attached. Preferred embodiments of the invention are defined in dependent claims attached as well as in the subsequent description and the drawing attached. Accordingly, the present invention provides a washing machine having a drum wherein laundry to be washed is to be disposed, a loading opening through which laundry can be loaded to the drum, a front door closing the loading opening and having a frame cover and a door frame connected to the frame cover by means of welding, and each of the frame cover and the door frame having respective welding lines on at least one portion of a side facing a respective other of the frame cover and the door frame.
  • the frame cover and the door frame comprise at least one notch provided on one of the welding lines, and at least one placement portion on another of the welding lines for mating the notch, with the notch disposed in the placement portion. Thereby, welding strength and the contact surface in the welding line are increased.
  • the welding lines are provided on the welding portions embodied on at least one of an outer edge facing outwards and on at least one of an inner edge provided on the opposite side.
  • the door frame and the frame cover are connected on at least one edge.
  • the welding lines are provided throughout the inner edges and the outer edges of the door frame and of the frame cover, respectively. Therefore, the length of the welding seam is increased.
  • the door frame comprises a fixation tab provided towards the frame cover, near the welding portion provided on the outer edge.
  • the welding portions do not slide in an undesired manner during the welding process.
  • the welding portions, provided on the inner edge side are provided in L form in an opposite manner with respect to each other.
  • the edge line on the welding portion is expanded.
  • the welding portion provided on the outer edge side of the door frame is provided in a manner extending towards the frame cover. Thus, a gap is formed for the placement of door glass in between.
  • the frame cover wherein the welding portion provided on the outer edge side of the frame cover, is provided in an extended manner towards the door frame against the welding portion of the door frame. In this case, a gap is provided for the placement of door glass in between.
  • Figure 1 a representative view of a washing machine having the subject matter front door
  • a washing machine generally comprises a drum 20 manufactured from steel material wherein washing process is realized, a loading opening 30 through which laundry is loaded to the drum 20, a front door 10 closing the loading opening 30, and a door glass 17 provided on the front door 10.
  • the front door 10 is formed by interconnecting a frame cover 14 and a door frame 1 1 produced by pouring plastic into a mold, and comprises a door arm 18 connected to the frame cover 14.
  • the door frame 1 1 of the front door 10 is produced of lower-cost material when compared with the frame cover (14).
  • the materials may be ABS/PP, ABS/PC and PP/PC.
  • the frame cover 14 is generally made of ABS material which provides a more aesthetical appearance when compared with the PP and PC materials.
  • a welding portion 121 extends from the outer edge 12, provided on the wall of the annular door frame 1 1 facing the outer side, towards the direction where the door frame 1 1 is connected to the frame cover 14. Near the welding portion 121 , a rectangular fixation tab 125 is provided towards the frame cover 14.
  • the welding portion 121 has a welding line 122 with notches 123 provided towards the frame cover 14.
  • a welding portion 131 which is in L form, is provided towards the direction where the door frame 1 1 is connected to the frame cover 14, by leaving a certain distance from the inner edge 13 provided on the side of the door frame 1 1 facing the door glass 17.
  • the welding portion 131 comprises a welding line 132 where the welding portion 131 is connected to the frame cover 14. There are notches 133 on the welding line 132.
  • the inner edge 13 has an arm part 135 embodied in L form towards the door glass 17.
  • the door frame 1 1 is produced by pouring material into the mold with the desired shape.
  • the circular frame cover 14 has a welding portion 151 provided in tab form towards the door frame 1 1 from the outer edge 15 provided on the side thereof facing the outwards, and there is a welding line 152 in the welding portion 151 . There are notches 153 on the welding line 152. While the inner edge 16 of the frame cover 14 is produced by means of molding, it is shaped like the door frame 1 1 .
  • a welding portion 161 extends so as to face the door frame 1 1 from the inner edge 16 of the frame cover 14.
  • the welding portion 161 comprises a welding line 162 having notches 163 and providing connection to the door frame 1 1 .
  • Said welding portion 161 has an L-like form.
  • an arm portion 165 is provided in a crosswise manner from the inner edge 16 towards the door glass 17.
  • the interconnection of the door frame 1 1 and of the frame cover 14 to each other is provided by means of ultrasonic welding.
  • the welding portion 151 provided on the outer edge 15 of the frame cover 14 and the welding portion 121 provided on the outer edge 12 of the door frame 1 1 are overlapped, and the notches 123, 153, provided on the welding lines 122, 152, are welded to each other by means of ultrasonic vibrations provided by the ultrasonic supply.
  • the notches 123, 153 seat to the placement parts 124, 154 provided between the notches 123, 153 of the frame cover 14 and the door frame 1 1 .
  • the fixation tab 125, provided in the welding part 121 of the door frame 1 1 prevents undesired sliding of the frame cover 14 during ultrasonic welding when the welding portions 121 , 151 overlapped.
  • the welding portions 131 , 161 provided on the inner edge 13, 16 side of the door frame 1 1 and the frame cover 14, overlap, and the door glass 17 is disposed between the arm portions 135, 165 extending from the door frame 1 1 and from the frame cover 14 towards the door glass 17.
  • the welding portions 131 , 161 are interconnected to each other by means of ultrasonic welding.
  • the notches 133, 163, provided on the welding lines 132, 162 existing on the welding portions 131 , 161 are welded to each other as a result of ultrasonic vibrations.
  • the notches 133, provided on the welding line 132 of the door frame 1 1 are seating to the welding portions 164 provided between the notches 163 provided on the welding line 162 of the frame cover 14 as a result of ultrasonic welding.
  • the notches 163, provided on the welding line 162 of the frame cover 14 are seating to the placement portions 134 provided in the welding line 132 of the door frame 1 1. Since the notches 123, 133, 153, 163, provided on the welding lines 122, 132, 152, 162, increase the contact surface, the strength of ultrasonic supply is improved.

Landscapes

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

Abstract

The present invention relates to a washing machine having a drum (20) wherein laundry to be washed is to be disposed, a loading opening (30) through which laundry can be loaded to the drum (20), a front door (10) closing the loading opening (30) and having a frame cover (4) and a door frame (11) connected to the frame cover (14) by means of welding, and each of the frame cover (14) and the door frame (11) having respective welding lines (122, 132, 52, 162) on at least one portion of a side facing a respective other of the frame cover (14) and the door frame (11). The frame cover (14) and the door frame (11) comprise at least one notch (123, 133, 153, 163) provided on one of the welding lines (122, 132, 152, 162), and at least one placement portion (124, 134, 154, 164) on another of the welding lines (122, 132, 52, 162) for mating the notch (123, 133, 153, 163), with the notch (123, 133, 153, 163) disposed in the placement portion (124, 134, 154, 164).

Description

A WASHING MACHINE HAVING A FRONT DOOR
The present invention relates to a washing machine having a drum wherein laundry to be washed is to be disposed, a loading opening through which laundry can be loaded to the drum, a front door closing the loading opening and having a frame cover and a door frame connected to the frame cover by means of welding, and each of the frame cover and the door frame having respective welding lines on at least one portion of a side facing a respective other of the frame cover and the door frame. Washing machines comprise a drum realizing a washing process inside, a loading opening through which laundry is loaded to the drum, a front door closing the loading opening and a door glass provided between the front door and the drum. The front door comprises a door frame and a frame cover connected to the door frame, and the door frame is made of a lower cost material than the frame cover.
In document WO 2012/153261 A1 a connection between a frame cover and a door frame belonging to the front door of a washing machine is disclosed. A front-loading washing machine is described having a door that includes an annular door frame, a plastic frame cover covering the door frame, and a circular window component with an edge held between the door frame and the frame cover. The door frame and the cover are bound by means of fastening elements.
The fastening element has a bonding element that is made/bonded integrally as a single piece with the frame cover, and one end of the bonding element, which protrudes through an aperture in the door frame opposite the frame cover, is widened toward the aperture edge, forming a head fastening the door frame by a form-fitted connection.
Objects of the present invention include to provide a washing machine having a front door, in which fitting precision and welding strength between the door frame and the frame cover are improved. The invention provides a solution to these objects as defined in the independent claim attached. Preferred embodiments of the invention are defined in dependent claims attached as well as in the subsequent description and the drawing attached. Accordingly, the present invention provides a washing machine having a drum wherein laundry to be washed is to be disposed, a loading opening through which laundry can be loaded to the drum, a front door closing the loading opening and having a frame cover and a door frame connected to the frame cover by means of welding, and each of the frame cover and the door frame having respective welding lines on at least one portion of a side facing a respective other of the frame cover and the door frame. The frame cover and the door frame comprise at least one notch provided on one of the welding lines, and at least one placement portion on another of the welding lines for mating the notch, with the notch disposed in the placement portion. Thereby, welding strength and the contact surface in the welding line are increased.
In a preferred embodiment of the present invention, the welding lines are provided on the welding portions embodied on at least one of an outer edge facing outwards and on at least one of an inner edge provided on the opposite side. Thus, the door frame and the frame cover are connected on at least one edge.
In a further preferred embodiment of the present invention, the welding lines are provided throughout the inner edges and the outer edges of the door frame and of the frame cover, respectively. Therefore, the length of the welding seam is increased.
In yet another preferred embodiment of the present invention, the door frame comprises a fixation tab provided towards the frame cover, near the welding portion provided on the outer edge. Thus, the welding portions do not slide in an undesired manner during the welding process.
In yet a further preferred embodiment of the present invention, the welding portions, provided on the inner edge side, are provided in L form in an opposite manner with respect to each other. Thus, the edge line on the welding portion is expanded. In still another preferred embodiment of the present invention, the welding portion provided on the outer edge side of the door frame is provided in a manner extending towards the frame cover. Thus, a gap is formed for the placement of door glass in between.
In still a further preferred embodiment of the present invention, the frame cover, wherein the welding portion provided on the outer edge side of the frame cover, is provided in an extended manner towards the door frame against the welding portion of the door frame. In this case, a gap is provided for the placement of door glass in between.
Preferred embodiments of the invention will now be described in detail with reference to the Figures of the drawing attached. In the drawing, there is shown:
In Figure 1 , a representative view of a washing machine having the subject matter front door;
In Figure 2, a representative view of the subject matter front door;
In Figure 3a, a detailed view regarding the interconnection of the door frame and of the frame cover of the subject matter front door on the outer edge; and
In Figure 3b, a cross sectional view regarding the interconnection of the door frame and of the frame cover of the subject matter front door on the inner edge. In this detailed description, a washing machine with a front door is explained with references to examples without forming any restrictive effect in order to make the subject more understandable.
With reference to Figure 1 and 2, a washing machine generally comprises a drum 20 manufactured from steel material wherein washing process is realized, a loading opening 30 through which laundry is loaded to the drum 20, a front door 10 closing the loading opening 30, and a door glass 17 provided on the front door 10. The front door 10 is formed by interconnecting a frame cover 14 and a door frame 1 1 produced by pouring plastic into a mold, and comprises a door arm 18 connected to the frame cover 14. The door frame 1 1 of the front door 10 is produced of lower-cost material when compared with the frame cover (14). The materials may be ABS/PP, ABS/PC and PP/PC. The frame cover 14 is generally made of ABS material which provides a more aesthetical appearance when compared with the PP and PC materials.
With reference to Figure 2, 3a and 3b, a welding portion 121 extends from the outer edge 12, provided on the wall of the annular door frame 1 1 facing the outer side, towards the direction where the door frame 1 1 is connected to the frame cover 14. Near the welding portion 121 , a rectangular fixation tab 125 is provided towards the frame cover 14. The welding portion 121 has a welding line 122 with notches 123 provided towards the frame cover 14. A welding portion 131 , which is in L form, is provided towards the direction where the door frame 1 1 is connected to the frame cover 14, by leaving a certain distance from the inner edge 13 provided on the side of the door frame 1 1 facing the door glass 17. The welding portion 131 comprises a welding line 132 where the welding portion 131 is connected to the frame cover 14. There are notches 133 on the welding line 132. The inner edge 13 has an arm part 135 embodied in L form towards the door glass 17. The door frame 1 1 is produced by pouring material into the mold with the desired shape.
With reference to Figure 2, 3a and 3b, the circular frame cover 14 has a welding portion 151 provided in tab form towards the door frame 1 1 from the outer edge 15 provided on the side thereof facing the outwards, and there is a welding line 152 in the welding portion 151 . There are notches 153 on the welding line 152. While the inner edge 16 of the frame cover 14 is produced by means of molding, it is shaped like the door frame 1 1 . A welding portion 161 extends so as to face the door frame 1 1 from the inner edge 16 of the frame cover 14. The welding portion 161 comprises a welding line 162 having notches 163 and providing connection to the door frame 1 1 . Said welding portion 161 has an L-like form. At the same time, an arm portion 165 is provided in a crosswise manner from the inner edge 16 towards the door glass 17. With reference to Figure 3a, the interconnection of the door frame 1 1 and of the frame cover 14 to each other is provided by means of ultrasonic welding. The welding portion 151 provided on the outer edge 15 of the frame cover 14 and the welding portion 121 provided on the outer edge 12 of the door frame 1 1 are overlapped, and the notches 123, 153, provided on the welding lines 122, 152, are welded to each other by means of ultrasonic vibrations provided by the ultrasonic supply. The notches 123, 153 seat to the placement parts 124, 154 provided between the notches 123, 153 of the frame cover 14 and the door frame 1 1 . The fixation tab 125, provided in the welding part 121 of the door frame 1 1 , prevents undesired sliding of the frame cover 14 during ultrasonic welding when the welding portions 121 , 151 overlapped.
With reference to Figure 3b, the welding portions 131 , 161 , provided on the inner edge 13, 16 side of the door frame 1 1 and the frame cover 14, overlap, and the door glass 17 is disposed between the arm portions 135, 165 extending from the door frame 1 1 and from the frame cover 14 towards the door glass 17. The welding portions 131 , 161 are interconnected to each other by means of ultrasonic welding. The notches 133, 163, provided on the welding lines 132, 162 existing on the welding portions 131 , 161 , are welded to each other as a result of ultrasonic vibrations. The notches 133, provided on the welding line 132 of the door frame 1 1 , are seating to the welding portions 164 provided between the notches 163 provided on the welding line 162 of the frame cover 14 as a result of ultrasonic welding. Correspondingly, the notches 163, provided on the welding line 162 of the frame cover 14, are seating to the placement portions 134 provided in the welding line 132 of the door frame 1 1. Since the notches 123, 133, 153, 163, provided on the welding lines 122, 132, 152, 162, increase the contact surface, the strength of ultrasonic supply is improved.
The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention. LIST OF REFERENCE NUMERALS Front door
Door frame
Outer edge
Welding portion
Welding line
Notch
Placement portion
Fixation tab
Inner edge
1 Welding portion
Welding line
Notch
Placement portion
5 Arm portion
Frame cover
Outer edge
1 Welding portion
2 Welding line
3 Notch
4 Placement portion
Inner edge
1 Welding portion
2 Welding line
3 Notch
4 Placement portion
5 Arm portion
Door glass
Door arm
Drum
Loading opening

Claims

1 . A washing machine having a drum (20) wherein laundry to be washed is to be disposed, a loading opening (30) through which laundry can be loaded to the drum (20), a front door (10) closing the loading opening (30) and having a frame cover (14) and a door frame (1 1 ) connected to the frame cover (14) by means of welding, and each of the frame cover (14) and the door frame (1 1 ) having respective welding lines (122, 132, 152, 162) on at least one portion of a side facing a respective other of the frame cover (14) and the door frame (1 1 ), characterized by the frame cover (14) and the door frame (1 1 ) comprising at least one notch (123, 133, 153, 163) provided on one of the welding lines (122, 132, 152, 162), and at least one placement portion (124, 134, 154, 164) on another of the welding lines (122, 132, 152, 162) for mating the notch (123, 133, 153, 163), with the notch (123, 133, 153, 163) disposed in the placement portion (124, 134, 154, 164).
2. A washing machine according to claim 1 wherein the welding lines (122, 132, 152, 162) are provided on welding portions (121 , 131 , 151 , 161 ) embodied on at least one of an outer edge (12, 15) facing outwards and on at least one of an inner edge (13, 16) provided on the opposite side.
3. A washing machine according to claim 2 wherein the welding lines (122, 132, 152, 162) are provided throughout the inner edges (13, 16) and outer edges (12, 15) of the door frame (1 1 ) and of the frame cover (14), respectively.
4. A washing machine according to any one of the preceding claims, wherein the door frame (1 1 ) comprises a fixation tab (125) provided towards the frame cover (14) at a vicinity of the welding portion (121 ) provided on the outer edge (12).
5. A washing machine according to claim 2, wherein the welding portions (131 , 161 ), provided on the inner edge (13, 16) side, are provided in L form in an opposite manner with respect to each other. A washing machine according to claim 2, wherein the welding portion (121) provided on the outer edge (12) side of the door frame (11) is provided in a manner extending towards the frame cover (14).
A washing machine according to claim 6, wherein the welding portion (151), provided on the outer edge (15) side of the frame cover (12), is provided in an extended manner towards the doorframe (11) against the welding portion (121) of the door frame (11).
EP13811908.6A 2012-12-28 2013-12-18 A washing machine having a front door Active EP2938773B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13811908T PL2938773T3 (en) 2012-12-28 2013-12-18 A washing machine having a front door

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201215546 2012-12-28
PCT/EP2013/077151 WO2014102118A1 (en) 2012-12-28 2013-12-18 A washing machine having a front door

Publications (2)

Publication Number Publication Date
EP2938773A1 true EP2938773A1 (en) 2015-11-04
EP2938773B1 EP2938773B1 (en) 2017-06-07

Family

ID=49880752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13811908.6A Active EP2938773B1 (en) 2012-12-28 2013-12-18 A washing machine having a front door

Country Status (3)

Country Link
EP (1) EP2938773B1 (en)
PL (1) PL2938773T3 (en)
WO (1) WO2014102118A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3323929T3 (en) 2016-11-21 2021-06-28 Electrolux Appliances Aktiebolag A door assembly for a laundry treatment machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1591790A (en) * 1977-10-17 1981-06-24 Cera Int Ltd Industrial washing machines
KR100465720B1 (en) * 2002-12-10 2005-01-13 엘지전자 주식회사 The combination structure of washer's lid
DE102005023445A1 (en) * 2005-05-20 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Door for a laundry drying machine
ES1074998Y (en) * 2011-05-11 2011-10-10 Bsh Electrodomesticos Espana Front loading washing machine machine door

Also Published As

Publication number Publication date
PL2938773T3 (en) 2017-11-30
WO2014102118A1 (en) 2014-07-03
EP2938773B1 (en) 2017-06-07

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