EP0943284B1 - Household device with a casing made from prefabricated sheet metal wall panels, in particular a washing machine or dishwasher - Google Patents

Household device with a casing made from prefabricated sheet metal wall panels, in particular a washing machine or dishwasher Download PDF

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Publication number
EP0943284B1
EP0943284B1 EP99104330A EP99104330A EP0943284B1 EP 0943284 B1 EP0943284 B1 EP 0943284B1 EP 99104330 A EP99104330 A EP 99104330A EP 99104330 A EP99104330 A EP 99104330A EP 0943284 B1 EP0943284 B1 EP 0943284B1
Authority
EP
European Patent Office
Prior art keywords
latch
sheet metal
metal wall
wall panel
built
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.)
Expired - Lifetime
Application number
EP99104330A
Other languages
German (de)
French (fr)
Other versions
EP0943284A1 (en
Inventor
Thomas c/o Whirlpool Europe s.r.l. Nagel
Ulrich c/o Whirlpool Europe s.r.l. Stegemeyer
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP0943284A1 publication Critical patent/EP0943284A1/en
Application granted granted Critical
Publication of EP0943284B1 publication Critical patent/EP0943284B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing

Definitions

  • the invention refers to a household device with a casing made from pre-fabricated sheet metal wall panels, in particular a washing machine or dishwasher where the pre-fabricated sheet metal wall panels have latch openings applied, into which latching elements of a built-in device can be inserted from one side and latched, or latching elements of an attached device can be inserted from the other side and latched, in which the latching elements designed as latch springs at least partially reach around behind the locking ring opening with its locking area.
  • latch pick-up can be easily punched into and stamped in the sheet metal wall panel.
  • the latch rings with their latch areas and the additional installation levels with the ring shaped parts of the transition from the latches to the sheet metal wall panel allow latching depths greater than the thickness of the sheet metal wall panel simply through the offset. In this way, different latch depths can be prescribed by the offset which are solely obtained by the stamp.
  • the ring shaped parts can completely surround the latch opening; the installation level can also be formed by concentrically shaped sections arranged in a ring.
  • the offset on the sheet metal wall panel to increase the latch depth can be designed so that the latch ring and the ring shaped parts protrude on the inner side or outer side of the sheet metal wall panel.
  • the arrangement can be designed so that the latch rings and the ring shaped parts are placed on opposite sides of the sheet metal wall panel.
  • the built-in device and the attached device have an installation area on which the latching elements are formed.
  • the arrangement and alignment of the latching elements according to the design is carried out so that the latch elements have a carrier element, which on the end facing away from the built-in or attached device is a lock spring which is aligned to the installation area of the built-in or attached device and whose ends reach to the latch areas on the side away from the latch rings.
  • latch springs of the built-in and attached devices have latch steps on the outside of their ends which hold the latch rings, then the latch springs will brace themselves due to their own elasticity in the latch rings.
  • the latch connection between the built-in or attached device and the sheet metal wall panel can, on the one hand, be designed so that the built-in or attached device is fixed by means of several latch elements on the sheet metal wall panel and that the carrier elements are designed as carrier bars.
  • the design can also be achieved so that the built-in or attached device is fixed by means of a single latch element to the sheet metal wall panel and that the carrier element is designed as a socket.
  • the water connection is preferably designed so that on the inner side of the sheet metal wall panel, the built-in device has a valve with a connection for an inner hose which can be connected on the outer side of the sheet metal wall panel to a feed hose and that on the outer side of the sheet metal wall panel, the attached device has an aquastop adapter with a connection for an aquastop hose with a valve which can be connected to the inner side of the sheet metal wall panel using an inner hose.
  • FIGs 1 and 2 show sheet metal wall panel 10 which has a latch opening 13, as can be seen more clearly in section in Figure 5.
  • This latch opening 13 is surrounded by a latch ring 14 which lies with its latch area 15 on the inner side 11 and with its latch area 16 on the outer side 12 of the sheet metal wall panel 10.
  • the outer side 12 of the sheet metal wall panel 10 and the inner latch area 15 form a latch depth Rb for a fitting element 30 which can be inserted and latched from the outer side 12 of the sheet metal wall panel 10, as can be seen in Figures 2 and 5.
  • the transition from the latch ring 14 to the sheet metal wall panel 10 has a ring shaped part 17 which defines an installation level, 18 which protrudes above the inner side 11 of the sheet metal wall panel 10 and with the outermost latch area 16 of the latch ring 14 defines a latch depth Ra for a built-in device 20.
  • the built-in device 20 is inserted and latched from the inner side 11 of the sheet metal wall panel 10 to the latch opening 13, as can be seen in Figures 1 and 5.
  • the built-in device 20 and the attached device 30 only carry one latch element which consists of a carrier element 21 or 31 with latch springs 22 and 32 on the free end.
  • latch springs 22 and 23 are aligned to the sheet metal wall panel 10 and in the area of their free ends on the outer sides contain latch steps 23 and 33 which pick up the latch ring 14. In this way, part of the latch spring 22 and 32 penetrates into the latch opening 13 so that the latch springs 22 and 32 can be braced in the latch opening 13 due to their own elasticity.
  • the installation area of the built-in or attached devices 20 or 30 and the distance to the latch steps 23 and 33 of the latch springs 22 or 32 matches the latch depths Ra or Rb which are established by the distance of the latch area 16 of the latch ring 14 from the installation level 18 or by the distance of the latch area 15 of the latch ring 14 from the outer side 12 of the sheet metal wall panel 10.
  • the built-in device 20 and the attached device 30 can also be latched over several latch elements and latch openings of this type to the sheet metal wall panel 10.
  • the carrier elements 21 and 31 are arranged evenly distributed over the installation areas of the built-in device 20 and attached device 30 like the latch openings 13 in the sheet metal wall panel 10.
  • the stamping in the area of the latch opening 13 can be carried out so that the latch ring 14 and the ring shaped part 17 also protrudes as an additional installation level 18 on the outer side 12 of the sheet metal wall panel 10.
  • the built-in device 20 then lies on the inner side 11 of the sheet metal wall element 10 and not on the part 17, whilst the latching of the latch springs 21 to the outer latch area 16 of the latch ring 14 remains the same.
  • the attached device 30 lies on the installation level 18 of the part 17 whilst the latching of the latch springs 32 to the inner latch area 15 of the latch ring 14 remains the same.
  • the ring shaped part 17 of the transition from the latch ring 14 to the sheet metal wall panel 10 can enclose the latch opening 13 as a closed ring shaped installation level 18; it can also be designed with sections arranged concentrically.
  • the built-in device 20 and the attached device 30 can also only be fixed using a single latch connection to the sheet metal wall panel 10.
  • the carrier element 21 or 32 can be designed as a socket on whose outer extent the latch springs 22 or 32 are arranged.
  • a valve V is latched into a socket from the inner side of the rear wall.
  • an inner hose IS is attached to the valve.
  • the valve V is linked to the feed hose ZS on the outside of the casing, as shown in Figure 6.
  • an aquastop adapter ASt-Ad is latched into a latch opening in the rear wall, and the aquastop hose ASt is connected to the adapter ASt-Ad, as seen in Figure 7.
  • the aquastop hose ASt is equipped with a valve V on the free end of the connection.
  • An inner hose IS can be connected to the aquastop adapter ASt-Ad on the inner side of the rear wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Description

  • The invention refers to a household device with a casing made from pre-fabricated sheet metal wall panels, in particular a washing machine or dishwasher where the pre-fabricated sheet metal wall panels have latch openings applied, into which latching elements of a built-in device can be inserted from one side and latched, or latching elements of an attached device can be inserted from the other side and latched, in which the latching elements designed as latch springs at least partially reach around behind the locking ring opening with its locking area.
  • With this type of household device, it is always necessary to fix different built-in devices onto the inner side of a sheet metal wall panel such as the rear wall and/or to apply attached devices to the outer side, where the latter will not be attached until the household device is able to be installed at home. Thus the problem often occurs that a latch opening will have to be able to be optionally used from the inner side or from the outer side of the pre-fabricated sheet metal wall panel for fitting a built-in device or attaching an attached device. Built-in devices and attached devices can be latched at the same prescribed depth in the latching opening or a relatively thick sheet metal wall panel. In order to achieve a clear latching effect with a firm fitting, a minimum latching depth is required which greatly exceeds the pre-fabricated sheet metal wall panel thickness used in household devices.
  • It is the task of the invention to create the possibility for the type of household device mentioned at the start to use thin sheet metal wall panels to be able to make fastenings on both sides for built-in and attached devices, even when these have a latching depth thicker than the sheet metal wall panel or even differing latching depths.
  • This task is solved by the invention, as defined in claim 1.
  • This type of latch pick-up can be easily punched into and stamped in the sheet metal wall panel. The latch rings with their latch areas and the additional installation levels with the ring shaped parts of the transition from the latches to the sheet metal wall panel allow latching depths greater than the thickness of the sheet metal wall panel simply through the offset. In this way, different latch depths can be prescribed by the offset which are solely obtained by the stamp. The ring shaped parts can completely surround the latch opening; the installation level can also be formed by concentrically shaped sections arranged in a ring.
  • The offset on the sheet metal wall panel to increase the latch depth can be designed so that the latch ring and the ring shaped parts protrude on the inner side or outer side of the sheet metal wall panel. However, the arrangement can be designed so that the latch rings and the ring shaped parts are placed on opposite sides of the sheet metal wall panel.
  • To clearly latch between the built-in or attached device and the sheet metal wall panel, it is planned that facing the sheet metal wall panel, the built-in device and the attached device have an installation area on which the latching elements are formed. The arrangement and alignment of the latching elements according to the design is carried out so that the latch elements have a carrier element, which on the end facing away from the built-in or attached device is a lock spring which is aligned to the installation area of the built-in or attached device and whose ends reach to the latch areas on the side away from the latch rings.
  • If it is planned that the latch springs of the built-in and attached devices have latch steps on the outside of their ends which hold the latch rings, then the latch springs will brace themselves due to their own elasticity in the latch rings.
  • The latch connection between the built-in or attached device and the sheet metal wall panel can, on the one hand, be designed so that the built-in or attached device is fixed by means of several latch elements on the sheet metal wall panel and that the carrier elements are designed as carrier bars.
  • However, the design can also be achieved so that the built-in or attached device is fixed by means of a single latch element to the sheet metal wall panel and that the carrier element is designed as a socket.
  • With a washing machine or a dishwasher, the water connection is preferably designed so that on the inner side of the sheet metal wall panel, the built-in device has a valve with a connection for an inner hose which can be connected on the outer side of the sheet metal wall panel to a feed hose and that on the outer side of the sheet metal wall panel, the attached device has an aquastop adapter with a connection for an aquastop hose with a valve which can be connected to the inner side of the sheet metal wall panel using an inner hose.
  • The invention will be described in more detail using the embodiments shown in the drawings. The figure shows the following:
    • Fig 1
    is a schematic diagram of a built-in device with a latch element which, from the inner side of a sheet metal wall panel, can be latched into a latch pick-up according to the invention
    Fig. 2
    is a schematic diagram of an attached device with a latch element which, from the outer side of a sheet metal wall panel, can be latched into a latch pick-up according to the invention
    Fig. 3 and Fig. 4
    show situations with built-in and attached devices corresponding to Fig 1 and Fig 2 with latch pick-ups stamped in the other direction and a different design of latch element
    Fig. 5
    shows an enlarged cross-section of the stamped latch pick-up according to the invention
    Fig. 6
    shows the connection of a feed hose and
    Fig. 7
    shows the connection of an aquastop hose to a washing machine.
  • Figures 1 and 2 show sheet metal wall panel 10 which has a latch opening 13, as can be seen more clearly in section in Figure 5. This latch opening 13 is surrounded by a latch ring 14 which lies with its latch area 15 on the inner side 11 and with its latch area 16 on the outer side 12 of the sheet metal wall panel 10. In this way, the outer side 12 of the sheet metal wall panel 10 and the inner latch area 15 form a latch depth Rb for a fitting element 30 which can be inserted and latched from the outer side 12 of the sheet metal wall panel 10, as can be seen in Figures 2 and 5.
  • The transition from the latch ring 14 to the sheet metal wall panel 10 has a ring shaped part 17 which defines an installation level, 18 which protrudes above the inner side 11 of the sheet metal wall panel 10 and with the outermost latch area 16 of the latch ring 14 defines a latch depth Ra for a built-in device 20.
  • The built-in device 20 is inserted and latched from the inner side 11 of the sheet metal wall panel 10 to the latch opening 13, as can be seen in Figures 1 and 5.
  • In the embodiment, the built-in device 20 and the attached device 30 only carry one latch element which consists of a carrier element 21 or 31 with latch springs 22 and 32 on the free end. These latch springs 22 and 23 are aligned to the sheet metal wall panel 10 and in the area of their free ends on the outer sides contain latch steps 23 and 33 which pick up the latch ring 14. In this way, part of the latch spring 22 and 32 penetrates into the latch opening 13 so that the latch springs 22 and 32 can be braced in the latch opening 13 due to their own elasticity.
  • The installation area of the built-in or attached devices 20 or 30 and the distance to the latch steps 23 and 33 of the latch springs 22 or 32 matches the latch depths Ra or Rb which are established by the distance of the latch area 16 of the latch ring 14 from the installation level 18 or by the distance of the latch area 15 of the latch ring 14 from the outer side 12 of the sheet metal wall panel 10.
  • The built-in device 20 and the attached device 30 can also be latched over several latch elements and latch openings of this type to the sheet metal wall panel 10. In this, the carrier elements 21 and 31 are arranged evenly distributed over the installation areas of the built-in device 20 and attached device 30 like the latch openings 13 in the sheet metal wall panel 10.
  • As can be seen from Figures 3 and 4, the stamping in the area of the latch opening 13 can be carried out so that the latch ring 14 and the ring shaped part 17 also protrudes as an additional installation level 18 on the outer side 12 of the sheet metal wall panel 10. The built-in device 20 then lies on the inner side 11 of the sheet metal wall element 10 and not on the part 17, whilst the latching of the latch springs 21 to the outer latch area 16 of the latch ring 14 remains the same. The attached device 30 lies on the installation level 18 of the part 17 whilst the latching of the latch springs 32 to the inner latch area 15 of the latch ring 14 remains the same.
  • The ring shaped part 17 of the transition from the latch ring 14 to the sheet metal wall panel 10 can enclose the latch opening 13 as a closed ring shaped installation level 18; it can also be designed with sections arranged concentrically. The built-in device 20 and the attached device 30 can also only be fixed using a single latch connection to the sheet metal wall panel 10. In this way, the carrier element 21 or 32 can be designed as a socket on whose outer extent the latch springs 22 or 32 are arranged.
  • Thus carrying a medium such as water is possible through the built-in device 20 or the attached device 30 which is particularly important for water-carrying household devices such as washing machines and dishwashers, as shown in Figures 6 and 7.
  • If a washing machine WA is switched on over a feed hose ZS, then a valve V is latched into a socket from the inner side of the rear wall. In the casing an inner hose IS is attached to the valve. The valve V is linked to the feed hose ZS on the outside of the casing, as shown in Figure 6.
  • If, on the other hand, the washing machine WA is connected over an aquastop hose ASt, then from the outside of the casing, an aquastop adapter ASt-Ad is latched into a latch opening in the rear wall, and the aquastop hose ASt is connected to the adapter ASt-Ad, as seen in Figure 7. The aquastop hose ASt is equipped with a valve V on the free end of the connection. An inner hose IS can be connected to the aquastop adapter ASt-Ad on the inner side of the rear wall.

Claims (10)

  1. Household device in particular washing machine or dishwasher comprising a casing made of pre-fabricated sheet metal wall panels, with latch openings in said sheet metal wall panel and latch rings surrounding said openings, and a built-in device with latching elements which may be inserted and latched from one side of said panel and with an attachable device comprising latching elements which can be inserted and latched from the other side of said panel, said latching elements having latch springs at least partially surrounding said latch rings with their latch areas in an assembled status
    characterised in that
    the latch rings (14) comprise latch areas (15, 16) located in a plane offset and at a distance from the plane of the sheet metal wall panel (10), and in that ring shaped parts (17) are provided , said ring shaped parts constituting the transition from the latch rings (14) to the sheet metal wall panel (10) and being located in a plane offset and at a distance from the plane of the sheet metal wall panel (10) and/or of the plane of the latch rings (14) to increase the latch depth (Ra, Rb) for said built-in and attachable devices (20, 30)
  2. Household device according to claim 1,
    characterised in that
    the latch rings (14) and the ring shaped parts (17) are offset and protrude to the inner side (11) or the outer side (12) of the sheet metal wall panel (10).
  3. Household device according to claim 1,
    characterised in that
    the latch rings (14) and the ring shaped parts (17) are offset and protrude on opposite sides of the sheet metal wall panel (10).
  4. Household device according to one of the claims 1 to 3,
    characterised in that
    the built-in device (20) and the attachable device (30) have an installation area turned towards the sheet metal wall panel (10) and on which the latch elements are formed.
  5. Household device according to claim 4,
    characterised in that
    the latch elements have a carrier element (21, 31) on which are formed latch springs (22, 32) on the end opposite the installation area of the builtin or attachable device (20 or 30), which are aligned with the installation area of the built-in or attached device (20 or 30) and whose ends reach behind the latch areas (15 or 16) on the side of the latch rings (14) opposite the installation area.
  6. Household device according to one of the claims 1 to 5,
    characterised in that
    the latch springs (22, 32) of the built-in and attachable devices (20 and 30) have latch steps on the outer sides of their ends (23,33) which hold the latch rings (14).
  7. Household device according to claim 5,
    characterised in that
    the built-in or attachable device (20 or 30) is fixed using several latch elements to the sheet metal wall panel (10) and that the carrier elements (21) are designed as carrier bars.
  8. Household device according to claim 5,
    characterised in that
    the built-in or attachable device (20 or 30) is fixed by means of a single latch element to the sheet metal wall panel (10) and that the carrier element (31) is designed as a socket.
  9. Household device according to claim 8,
    characterised in that
    the built-in device is a valve (V) on the inner side (11) of the sheet metal wall panel (10) with a connection for an inner hose (IS) which can be connected to the outer side (12) of the sheet metal wall panel (10) using a feed hose (ZS) (Figure 6).
  10. Household device according to claim 8,
    characterised in that
    the attachable device (30) is consists in an aquastop adapter (ASt-Ad) on the outer side (12) of the sheet metal wall panel (10) with a connection for an aquastop hose (ASt) equipped with a valve (V), which can be connected to an inner hose (IS) on the inner side (11) of the sheet metal wall panel (10) (Figure 7).
EP99104330A 1998-03-20 1999-03-04 Household device with a casing made from prefabricated sheet metal wall panels, in particular a washing machine or dishwasher Expired - Lifetime EP0943284B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19812328 1998-03-20
DE19812328A DE19812328C1 (en) 1998-03-20 1998-03-20 Household appliance with a housing formed from sheet metal wall elements, in particular a washing machine or dishwasher

Publications (2)

Publication Number Publication Date
EP0943284A1 EP0943284A1 (en) 1999-09-22
EP0943284B1 true EP0943284B1 (en) 2003-01-22

Family

ID=7861714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104330A Expired - Lifetime EP0943284B1 (en) 1998-03-20 1999-03-04 Household device with a casing made from prefabricated sheet metal wall panels, in particular a washing machine or dishwasher

Country Status (3)

Country Link
EP (1) EP0943284B1 (en)
DE (2) DE19812328C1 (en)
ES (1) ES2191375T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061238B4 (en) * 2000-12-08 2005-11-24 BSH Bosch und Siemens Hausgeräte GmbH Fastening device for a water level controller
EP1550397B1 (en) * 2003-12-30 2013-02-13 LG Electronics, Inc. Cabinet for home appliance
CH701794A1 (en) * 2009-09-11 2011-03-15 Elro Holding Ag Catering device.
CN108018677B (en) * 2018-01-15 2023-08-15 无锡小天鹅电器有限公司 Decorative plate, handle piece, handle, washing article accommodating box and washing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1825382U (en) * 1960-11-08 1961-01-19 Peter Pfenningsberg G M B H Ma HOSE CONNECTION FOR LIQUID TANK, IN PARTICULAR FOR THE EXTERNAL DRUM OF WASHING MACHINES.
US3592495A (en) * 1969-07-23 1971-07-13 Illinois Tool Works Latching device
DE8529264U1 (en) * 1985-10-15 1986-03-27 Blomberg-Werke Kg, 4730 Ahlen Electrically powered household appliance
DE19537034C1 (en) * 1995-10-05 1996-10-02 Bauknecht Hausgeraete Appts. for connecting washing machine etc., to fresh water supply

Also Published As

Publication number Publication date
DE19812328C1 (en) 1999-09-23
DE69904976D1 (en) 2003-02-27
ES2191375T3 (en) 2003-09-01
EP0943284A1 (en) 1999-09-22
DE69904976T2 (en) 2003-10-02

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