WO2019192880A1 - A dishwasher comprising a door lock bolt with improved assembly - Google Patents

A dishwasher comprising a door lock bolt with improved assembly Download PDF

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Publication number
WO2019192880A1
WO2019192880A1 PCT/EP2019/057549 EP2019057549W WO2019192880A1 WO 2019192880 A1 WO2019192880 A1 WO 2019192880A1 EP 2019057549 W EP2019057549 W EP 2019057549W WO 2019192880 A1 WO2019192880 A1 WO 2019192880A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabinet
door
leg
locking tab
enabling
Prior art date
Application number
PCT/EP2019/057549
Other languages
French (fr)
Inventor
Mehmet Ozan TRAS
Emin UNAL
Ilhan Ozgu OZGUR
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP19713783.9A priority Critical patent/EP3773121B1/en
Priority to PL19713783T priority patent/PL3773121T3/en
Publication of WO2019192880A1 publication Critical patent/WO2019192880A1/en

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Classifications

    • 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
    • A47L15/4257—Details of the loading door
    • A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open

Definitions

  • the present invention relates to a dishwasher comprising a cabinet in which kitchenware to be washed are placed, a door enabling access into the washing environment in the cabinet, and a lock bolt enabling the door to be retained at a closed position so as to be opened when desired.
  • the dishwasher comprises a cabinet in which kitchenware to be washed are placed, a door enabling access into the cabinet, opening in up-down direction by pivoting about horizontal axis, and a locking tab fixed on the upper side of the cabinet, enabling the door to be releasably locked to the cabinet and to be retained in closed position by engaging a locking orifice provided on the upper portion of the door when the door is closed to start the washing process or to continue an interrupted washing process.
  • the end of the locking tab extending outwards before the cabinet enters into the locking orifice on the door, and enables the door to be locked on the cabinet so as to be easily opened upon being pulled, by means of spring coupling elements provided in the locking orifice.
  • a micro switch provided in the locking orifice in the door, to which the locking tab contacts when the door is closed, detects whether the door is open or closed, and enables the washing process to be interrupted when the door is opened by a user during washing, and to be continued when the door is closed again.
  • the locking tab is assembled to the cabinet by means of flexible assembly legs passed through an opening on a crossbar provided on the upper-front portion of the cabinet. Each time the dishwasher door is opened, the locking tab is subjected to an expulsion force. Over time, the locking tab may be displaced due to weakening of its material, operational deformations and the impact of said expulsion force. The door is detected as closed when the locking tab is displaced, leading to the risk of the dishwasher operating with a not fully closed door.
  • WO2016192795 (A1) relates to a locking tab used in releasably locking a dishwasher door to its body, fixed on the body, and engaging a locking orifice provided on the door when the door is closed.
  • a support block (B) is used in order to prevent displacement of the assembly legs fixing the locking tab to the cabinet, which enhances rigidity of the assembly zone but occupies a large space in the body. It is observed that said support block (B) shown in Figure 2, is not capable of sufficiently inhibiting the assembly legs from approaching each other by flexing, and that the locking tab displaces over time.
  • the aim of the present invention is to realize a dishwasher comprising a locking tab enabling a door to be retained in closed position, assembled to the cabinet so as not to be displaced.
  • the dishwasher realized to achieve the aim of the present invention comprises a door enabling access into the cabinet, opening in up-down direction by pivoting about horizontal axis, and a locking tab fixed on the upper side of the cabinet, enabling the door to be retained in closed position by engaging a locking orifice provided on the upper portion of the door.
  • the locking tab comprises a first leg and a second leg of flexible structure, passed through the opening, enabling the locking tab to be assembled to the crossbar (tie beam) provided on the upper-front side of the cabinet, by means of the retaining extensions on their ends.
  • the locking tab used in the dishwasher of the invention comprises a support arm extending in horizontal direction between the flexible first leg and the flexible second leg, connected to the first leg from one of its ends by means of a pin, and whose free end is fixed to the second leg. After engaging the retaining extensions to the crossbar, the support arm whose one end is connected to the first leg, is rotated by the assembly operator, fixing its free end to the second leg by means of a snap fastener mechanism.
  • Figure 1 is a perspective view of a detail of the dishwasher.
  • Figure 2 is a view from above of a lock bolt of the prior art and its assembly detail.
  • Figure 3 is a view from above of the lock bolt of the invention and its assembly detail.
  • the dishwasher (1) comprises a cabinet (2) in which kitchenware to be washed are placed, a door (3) enabling access into the cabinet (2), opening in up-down direction by pivoting about horizontal axis, a locking tab (5) fixed on the upper side of the cabinet (2), enabling the door (3) to be releasably locked to the cabinet (2) and to be retained in closed position by engaging a locking orifice (4) provided on the upper portion of the door (3) when the door (3) is closed to start the washing process or to continue an interrupted washing process, a crossbar (6) extending in horizontal direction on the upper-front portion of the cabinet (2), and at least one opening (7) provided on the crossbar (6), enabling the locking tab (5) to be fixed (assembled) to the cabinet (2).
  • the end of the locking tab (5) extending outwards the cabinet (2) enters into the locking orifice (4) on the door (3), and enables the door (3) to be locked on the cabinet (2) so as to be easily opened upon being pulled by a user, by means of spring coupling elements (not shown in the figures) provided in the locking orifice (4).
  • a micro switch (not shown in the figures) provided in the door (3), to which the locking tab (5) contacts, detects whether the door (3) is open or closed, and enables the washing process to be interrupted when the door (3) is opened by a user during the washing process to load new items to be washed.
  • the locking tab (5) comprises a flexible first leg (8) and a flexible second leg (9) passed through the opening (7), enabling the locking tab (5) to be assembled to the crossbar (6) by means of the retaining extensions (10) on their ends.
  • the locking tab (5) of the invention comprises a support arm (12) extending in horizontal direction between the first leg (8) disposed on the left or the right side, and the second leg (9) disposed opposite thereof, connected (pivoted) from one of its ends to the first leg (8) by means of a pin (11) so as to be rotatable about the pin (11) axis, and whose free end is fixed to the second leg (9) ( Figure 3).
  • the support arm (12) In assembling the locking tab (5), after passing the retaining extensions (10) through the opening (7) and engaging them the crossbar (6), the support arm (12) whose one end is connected to the first leg (8), is rotated by the assembly operator, fixing its free end to the second leg (9). The support arm (12) inhibits the first leg (8) and the second leg (9) from approaching each other, thereby preventing the retaining extensions (10) from escaping the opening (7) and therefore the locking tab (5) from being removed from the cabinet (2).
  • the locking tab (5) comprises a snap fastener mechanism (13) enabling an end of the support arm (12) to be fixed to the second leg (9).
  • the snap fastener mechanism (13) comprises a socket (14) provided on the second leg (9) and a stud (15) provided on the free end of the support arm (12), enabling fixing the free end of the support arm (12) to be fixed to the second leg (9) by engaging the socket (14) ( Figure 3).
  • the support arm (12) is a piece extending between the first leg (8) and the second leg (9), having a length of 1 to 2 cm and a diameter or width of 3 to 5 mm, and does not occupy a large space in the cabinet (2).

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  • Washing And Drying Of Tableware (AREA)

Abstract

The present invention relates to a dishwasher (1) comprising a cabinet (2) in which kitchenware to be washed are placed, a door (3) enabling access into the cabinet (2), opening in up-down direction by pivoting about horizontal axis, a locking tab (5) fixed on the upper side of the cabinet (2), enabling the door (3) to be releasably locked to the cabinet (2) and to be retained in closed position by engaging a locking orifice (4) provided on the upper portion of the door (3) when the door (3) is closed to start the washing process or to continue an interrupted washing process, a crossbar (6) extending in horizontal direction on the upper-front portion of the cabinet (2), and at least one opening (7) provided on the crossbar (6), enabling the locking tab (5) to be fixed to the cabinet (2).

Description

A DISHWASHER COMPRISING A DOOR LOCK BOLT WITH IMPROVED ASSEMBLY
The present invention relates to a dishwasher comprising a cabinet in which kitchenware to be washed are placed, a door enabling access into the washing environment in the cabinet, and a lock bolt enabling the door to be retained at a closed position so as to be opened when desired.
The dishwasher comprises a cabinet in which kitchenware to be washed are placed, a door enabling access into the cabinet, opening in up-down direction by pivoting about horizontal axis, and a locking tab fixed on the upper side of the cabinet, enabling the door to be releasably locked to the cabinet and to be retained in closed position by engaging a locking orifice provided on the upper portion of the door when the door is closed to start the washing process or to continue an interrupted washing process. In the dishwasher, when the door is closed to start the washing process, the end of the locking tab extending outwards before the cabinet enters into the locking orifice on the door, and enables the door to be locked on the cabinet so as to be easily opened upon being pulled, by means of spring coupling elements provided in the locking orifice. In addition, a micro switch provided in the locking orifice in the door, to which the locking tab contacts when the door is closed, detects whether the door is open or closed, and enables the washing process to be interrupted when the door is opened by a user during washing, and to be continued when the door is closed again. The locking tab is assembled to the cabinet by means of flexible assembly legs passed through an opening on a crossbar provided on the upper-front portion of the cabinet. Each time the dishwasher door is opened, the locking tab is subjected to an expulsion force. Over time, the locking tab may be displaced due to weakening of its material, operational deformations and the impact of said expulsion force. The door is detected as closed when the locking tab is displaced, leading to the risk of the dishwasher operating with a not fully closed door.
State of the art patent application no. WO2016192795 (A1) relates to a locking tab used in releasably locking a dishwasher door to its body, fixed on the body, and engaging a locking orifice provided on the door when the door is closed. A support block (B) is used in order to prevent displacement of the assembly legs fixing the locking tab to the cabinet, which enhances rigidity of the assembly zone but occupies a large space in the body. It is observed that said support block (B) shown in Figure 2, is not capable of sufficiently inhibiting the assembly legs from approaching each other by flexing, and that the locking tab displaces over time.
The aim of the present invention is to realize a dishwasher comprising a locking tab enabling a door to be retained in closed position, assembled to the cabinet so as not to be displaced.
The dishwasher realized to achieve the aim of the present invention comprises a door enabling access into the cabinet, opening in up-down direction by pivoting about horizontal axis, and a locking tab fixed on the upper side of the cabinet, enabling the door to be retained in closed position by engaging a locking orifice provided on the upper portion of the door. The locking tab comprises a first leg and a second leg of flexible structure, passed through the opening, enabling the locking tab to be assembled to the crossbar (tie beam) provided on the upper-front side of the cabinet, by means of the retaining extensions on their ends.
The locking tab used in the dishwasher of the invention comprises a support arm extending in horizontal direction between the flexible first leg and the flexible second leg, connected to the first leg from one of its ends by means of a pin, and whose free end is fixed to the second leg. After engaging the retaining extensions to the crossbar, the support arm whose one end is connected to the first leg, is rotated by the assembly operator, fixing its free end to the second leg by means of a snap fastener mechanism.
The dishwasher realized to achieve the aim of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1 is a perspective view of a detail of the dishwasher.
Figure 2 is a view from above of a lock bolt of the prior art and its assembly detail.
Figure 3 is a view from above of the lock bolt of the invention and its assembly detail.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  1. Dishwasher
  2. Cabinet
  3. Door
  4. Locking orifice
  5. Locking tab
  6. Crossbar
  7. Opening
  8. First leg
  9. Second leg
  10. Retaining extension
  11. Pin
  12. Support arm
  13. Snap fastener mechanism
  14. Socket
  15. Stud
B: Support block
The dishwasher (1) comprises a cabinet (2) in which kitchenware to be washed are placed, a door (3) enabling access into the cabinet (2), opening in up-down direction by pivoting about horizontal axis, a locking tab (5) fixed on the upper side of the cabinet (2), enabling the door (3) to be releasably locked to the cabinet (2) and to be retained in closed position by engaging a locking orifice (4) provided on the upper portion of the door (3) when the door (3) is closed to start the washing process or to continue an interrupted washing process, a crossbar (6) extending in horizontal direction on the upper-front portion of the cabinet (2), and at least one opening (7) provided on the crossbar (6), enabling the locking tab (5) to be fixed (assembled) to the cabinet (2).
In the dishwasher (1), when the door (3) is closed to start or to continue the washing process, the end of the locking tab (5) extending outwards the cabinet (2) enters into the locking orifice (4) on the door (3), and enables the door (3) to be locked on the cabinet (2) so as to be easily opened upon being pulled by a user, by means of spring coupling elements (not shown in the figures) provided in the locking orifice (4). In addition, a micro switch (not shown in the figures) provided in the door (3), to which the locking tab (5) contacts, detects whether the door (3) is open or closed, and enables the washing process to be interrupted when the door (3) is opened by a user during the washing process to load new items to be washed.
The locking tab (5) comprises a flexible first leg (8) and a flexible second leg (9) passed through the opening (7), enabling the locking tab (5) to be assembled to the crossbar (6) by means of the retaining extensions (10) on their ends.
The locking tab (5) of the invention comprises a support arm (12) extending in horizontal direction between the first leg (8) disposed on the left or the right side, and the second leg (9) disposed opposite thereof, connected (pivoted) from one of its ends to the first leg (8) by means of a pin (11) so as to be rotatable about the pin (11) axis, and whose free end is fixed to the second leg (9) (Figure 3).
In assembling the locking tab (5), after passing the retaining extensions (10) through the opening (7) and engaging them the crossbar (6), the support arm (12) whose one end is connected to the first leg (8), is rotated by the assembly operator, fixing its free end to the second leg (9). The support arm (12) inhibits the first leg (8) and the second leg (9) from approaching each other, thereby preventing the retaining extensions (10) from escaping the opening (7) and therefore the locking tab (5) from being removed from the cabinet (2).
In an embodiment of the invention, the locking tab (5) comprises a snap fastener mechanism (13) enabling an end of the support arm (12) to be fixed to the second leg (9). The snap fastener mechanism (13) comprises a socket (14) provided on the second leg (9) and a stud (15) provided on the free end of the support arm (12), enabling fixing the free end of the support arm (12) to be fixed to the second leg (9) by engaging the socket (14) (Figure 3).
In the dishwasher (1) of the invention, using an apparatus such as the support block (B) is not required anymore, which enhances the rigidity of the zone where the retaining extensions (10) are mounted to inhibit displacement of the locking tab (5), but which occupies a large space in the cabinet (2). The support arm (12) is a piece extending between the first leg (8) and the second leg (9), having a length of 1 to 2 cm and a diameter or width of 3 to 5 mm, and does not occupy a large space in the cabinet (2).

Claims (3)

  1. A dishwasher (1) comprising a cabinet (2), a door (3) enabling access into the cabinet (2), opening in up-down direction by pivoting about horizontal axis, a locking tab (5) fixed on the upper side of the cabinet (2), enabling the door (3) to be releasably locked to the cabinet (2) and to be retained in closed position by engaging a locking orifice (4) provided on the upper portion of the door (3), a crossbar (6) extending in horizontal direction on the upper-front portion of the cabinet (2), at least one opening (7) provided on the crossbar (6), enabling the locking tab (5) to be fixed to the cabinet (2), and a first leg (8) and a second leg (9) of flexible structure, passed through the opening (7), enabling the locking tab (5) to be assembled to the crossbar (6) by means of retaining extensions (10),
    - characterized by the locking tab (5) comprising a support arm (12) extending in horizontal direction between the first leg (8) and the second leg (9), connected from one of its ends to the first leg (8) by means of a pin (11) so as to be rotatable about the pin (11) axis, and whose free end is fixed to the second leg (9).
  2. A dishwasher (1) according to claim 1, characterized by the locking tab (5) comprising a snap fastener mechanism (13) enabling an end of the support arm (12) to be fixed to the second leg (9).
  3. A dishwasher (1) according to claim 2, characterized by the snap fastener mechanism (13) comprising a socket (14) provided on the second leg (9) and a stud (15) provided on the free end of the support arm (12), enabling the free end of the support arm (12) to be fixed to the second leg (9) by engaging the socket (14).
PCT/EP2019/057549 2018-04-02 2019-03-26 A dishwasher comprising a door lock bolt with improved assembly WO2019192880A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19713783.9A EP3773121B1 (en) 2018-04-02 2019-03-26 A dishwasher comprising a door lock bolt with improved assembly
PL19713783T PL3773121T3 (en) 2018-04-02 2019-03-26 A dishwasher comprising a door lock bolt with improved assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201804544 2018-04-02
TRA2018/04544 2018-04-02

Publications (1)

Publication Number Publication Date
WO2019192880A1 true WO2019192880A1 (en) 2019-10-10

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ID=65951584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/057549 WO2019192880A1 (en) 2018-04-02 2019-03-26 A dishwasher comprising a door lock bolt with improved assembly

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EP (1) EP3773121B1 (en)
PL (1) PL3773121T3 (en)
WO (1) WO2019192880A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020180319A1 (en) * 2001-05-31 2002-12-05 Irwin Eric C. Automatic dishwasher and push/pull latch mechanism for same
WO2011003714A1 (en) * 2009-07-07 2011-01-13 Arcelik Anonim Sirketi A dishwasher with automatically opening door
WO2016192795A1 (en) 2015-06-04 2016-12-08 Arcelik Anonim Sirketi Retainer for use in the door latch assembly of a household appliance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020180319A1 (en) * 2001-05-31 2002-12-05 Irwin Eric C. Automatic dishwasher and push/pull latch mechanism for same
WO2011003714A1 (en) * 2009-07-07 2011-01-13 Arcelik Anonim Sirketi A dishwasher with automatically opening door
WO2016192795A1 (en) 2015-06-04 2016-12-08 Arcelik Anonim Sirketi Retainer for use in the door latch assembly of a household appliance

Also Published As

Publication number Publication date
EP3773121B1 (en) 2021-10-06
EP3773121A1 (en) 2021-02-17
PL3773121T3 (en) 2022-02-14

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