EP0003350A1 - Riegel - Google Patents

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Publication number
EP0003350A1
EP0003350A1 EP79100194A EP79100194A EP0003350A1 EP 0003350 A1 EP0003350 A1 EP 0003350A1 EP 79100194 A EP79100194 A EP 79100194A EP 79100194 A EP79100194 A EP 79100194A EP 0003350 A1 EP0003350 A1 EP 0003350A1
Authority
EP
European Patent Office
Prior art keywords
members
shoulder
latch mechanism
engagement
spring
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.)
Withdrawn
Application number
EP79100194A
Other languages
English (en)
French (fr)
Inventor
Pierre Jean-Marie Rey
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.)
BorgWarner Transmission Systems Monaco SAM
Original Assignee
Eaton SAM
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 Eaton SAM filed Critical Eaton SAM
Publication of EP0003350A1 publication Critical patent/EP0003350A1/de
Withdrawn legal-status Critical Current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 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/026—Devices for adding soap or other washing agents the powder or tablets being added directly, e.g. without the need of a flushing liquid
    • 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4409—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants by tipping containers or opening their lids, e.g. with the help of a programmer

Definitions

  • This invention relates to latch mechanisms which are suitable for many different applications but in particular for latching the lid of a dispenser for washing material, such as soap powder or liquid, in a washing machine such as a clothes washing machine or a dish washing machine.
  • Such dispensers are filled with washing material such as soap powder and then the lid of the dispenser is closed. It is most desirable for this closure to be done simply by manually pressing the lid into its closed position and for the latch to retain it there.
  • the lid of the dispenser is automatically opened by means of a solenoid which releases the latch mechanism under the control of a programmed control device in the machine. It is possible that an operator may accidentally close the lid of the dispenser without having put washing material such as soap powder into it. It is then desirable that the operator should be able to open the dispenser lid manually.
  • the present invention provides a latch mechanism particularly suited for application to such dispensers, which can be manually closed and which has two different modes of opening, one of which is well suited to being automatically carried out for example by means of an electromagnetic actuator, but which could alternatively be carried out manually, and the other of which is easily done manually so that, for example, the latch when applied to a dispenser can be readily re-opened manually by the operator to introduce washing material such as soap powder, which the operator had previously forgotten to introduce.
  • the invention provides a latch mechanism comprising a first member which is adapted to engage with a second, resiliently displaceable member, the engaging portions of the members being so formed that a force applied to the members in a direction tending to engage them can cause resilient displacement of the second member to permit engagement of the latch, first, manual, means for disengaging said members, and additional means for moving one of the members relative to the other when they are in engagement, so as to disengage the members, whereby the members are disengageable both by using said first means or by operation of said moving means.
  • said one member is rotatable to disengage it from the other member, this form of movement being well adapted for.automatic operation by an actuator, or for manual operation.
  • said one member When said one member is rotatable, then preferably it includes at least one shoulder which engages with the other member when the one member is in one angular position but not when the one member is rotated to another angular position.
  • the means for moving the one member comprises an electromagnetic actuator, operation of which rotates said one member, then preferably biassing means is provided for biassing said one member into a position for engagement with the other member, the electromagnetic actuator when actuated operating against said biassing means to move said one member into a disengaging position.
  • the actuator when the actuator is in its normal unener- gised condition, the rotatable member will always be biassed into a position where the latch can be engaged simply by manually forcing the two members of the latch into engagement with each other.
  • a washing material dispenser for a washing machine which includes a container portion 2 (shown partly cut away for clarity, but with the remainder of the container portion indicated approximately in broken lines) and a lid. 4 which in the position shown closes the open side of the container portion 2.
  • the container portion 2 is fixedly mounted to a part of the washing machine, for example by being riveted by rivets such as 6 to a part 8 of the washing machine.
  • the lid 4 is hinged to the washing machine on one side by means of a hinge pin 10 which passes through a lug 12 integral with the lid and through a lug 14 on another fixed part 16 of the washing machine.
  • a similar hinging arrangement is also provided at the other side of the lid, but this is not shown in detail, only the corresponding lug 14' being visible in Figure 1.
  • the dispenser is shown with the lid facing downwards, but this is done cnly to clearly illustrate its detail.
  • the dispenser would commonly be fitted in a quite different position, for example in a dish washing machine it would normally be fitted into the door of the machine so that when the machine door was opened downwardly, the lid of the dispenser would face vertically upwards, enabling easy introduction of powder into the container 2.
  • the lid of the closed dispenser would also lie in a vertical position.
  • a latch mechanism which comprises a first member in the form of a shaft 18 rotatably mounted in a mounting 20 fixed to the body portion 2, and a second member which is resiliently displaceable and comprises the two arms 22 of an elongated U-shaped wire spring 24 which is'secured to the lid 4 by being inserted through pairs of holes in mounting lugs 26 fixed to the inner surface of the lid 4.
  • the shaft 18 has a head 28 which has notches 30 on opposite sides thereof. Only one notch 30 can be seen in Figure 1 but both are shown in detail in Figure 2, where it can be seen also that the spring arms 22 are engaged in these notches thereby holding the lid in the closed position.
  • the most important parts of the notches for the purpose of this retention of the lid are the shoulders formed by the lower walls of the notches (as viewed in Figure 2), which lower walls are indicated at 32.
  • the lid 4 can be opened manually by pulling downwardly (as viewed in Figurel) on the lid 4, for instance using a handle indicated at 34, so that the shoulders 32 which have a sloping configuration can push apart the spring arms 22 until these arms have ridden over the shoulders in the direction of the arrow A in Figure 2 at which time the lid is freed for opening in the direction of arrow B in Figure 1.
  • Opening is initially assisted by the spring arms 22 pressing inwardly on the tapering part of the head 28 and then also by a spring 36 which is mounted on the hinge pin 10 and has one end contacting a pin 38 fixed to a fixed part 40 of the machine and the other end pressing on the lid 4 and biassing the lid in the opening direction, so as to normally hold the lid 4 open when it is not latched.
  • the lid can be manually closed simply by pressing it back into the closed position so that the spring arms 22 ride over and are spread apart by the rounded and tapered leading end. of the head 18 until the spring arms 22 snap in behind the shoulders formed by walls 32 :of the notches 30.
  • the sloping shape of these walls also ensures that the inward forces applied to them by the spring arms 22 have a tendency to draw the lid 4 tightly into its fully closed position.
  • the solenoid 44 which may for example be fixed to the container portion 2 or might be fixed to another part of the washing machine.
  • the solenoid draws in its actuator rod 46 in the direction of the arrow C.
  • the end of the rod 46 is engaged with the end of an arm 48 fixed on the rotatable latching shaft 18, and consequently operation of the solenoid rotates the shaft 18 clockwise against the bias of a spring 50 which encircles the top end of the shaft 18 and has its ends retained, one against the arm 48 and the other against the retaining pin 52 fixed on the container portion 2.
  • the lid 4 can then be closed by manually pushing it back to the closed position until the latch re-engages as already described with reference to Figure 2.
  • Figures 4 and 5 show an alternative form for the head of the rotatable shaft 18.
  • the view of Figure 5 is taken at right angles to the view in Figure 4, so that it will be appreciated that the head 28 is flat on two sides 54 but is tapered on its other two sides 56. Above the sides 56 there are formed two opposed notches 58 corresponding with the notches 30 and having shoulders 60 corresponding with the shoulders 32.
  • the effective diameter of the head does not increase as it is turned to release the latch and consequently the spring arms 22 do not have to be forced apart when turning it, so that the torque required to turn the shaft 18 is reduced, enabling the use of a lighter duty solenoid 44.
  • a shaft 18 of modified form having a head 28 which is rounded at its leading end, has flat sides and has shoulders 62 which are substantially at right angles to its axis. It will be appreciated that the form of the head 28 enables the head to spread the arms 22 of the spring 24 when the lid is closed, thus enabling easy manual closure of the lid, and the flat sides of the head 28 enables the latch to be released by rotation of the shaft 18 as before. However, the perpendicular shoulders 62 prevent the latch from being released by manually pulling on the lid.
  • a push-button generally indicated at 64 is provided.
  • the lid itself is 'not shewn in Figure 6, for the purpose of clarity, but it would lie in a plane between the head 28 of shaft 18 and the upper portion 66 of the push-button, so that the two arms 68 of the push-button will extend through apertures in the lid.
  • the push-button 64 is retained in that position by four lateral projections 70 engaging under the arms 22 of spring 24.
  • the push-button 64 is provided with angled camming surfaces 72 such that when the button is depressed these surfaces force apart the arms 22 of spring 24, thus enabling the spread spring to pass over the head 28 so that the door can be opened.
  • Figure ? shows an alternative arrangement in which the shaft 18 has a similar head 28 and shoulders 62 to those shown in Figure 6 but manual disengagement is achieved by rotating a central pivoted member 74 so that a pair of lugs 76 projecting from member 74 push spring arms 22 away from each other, thus again releasing the head 28 from behind the spring arms.
  • the member 74 may be pivotally mounted on the outside of the lid with the lugs 76 extending through suitably shaped holes in the lid so as to reach the spring 24 beneath the lid.
  • member 74 may be mounted inside the lid and a suitable control shaft for turning it may extend out through an aperture in the lid.
  • Figure 8 shows a plan view of that part of the lid 4 which is nearest the viewer, as seen in Figure 1, and with some additional features.
  • the lid On its internal surface the lid is provided with a peripheral flange 78 and two more inwardly located ribs 80 and 82 between which is seated a resilient (for example, rubber) seal 83.
  • the seal 83 is located so as to co-operate with the edges of the walls 84 of the container portion 2 of the dispenser, and the seal 83 will, of course, extend all the way round this container portion so as to provide a seal between the contents of the container portion and the interior of the washing machine.
  • the spring 24 is located between rib 82 and rib (flange)78 and is retained by bridge portions 86 and 88 which extend between these two ribs, an abutment 190 also being provided to prevent endwise movement of the spring 24.
  • a pair of projections 90 extend towards each other from ribs 78 and 82 to contact the arms of spring 22 near their free ends.
  • the bridges 88 are for the purpose of liriting the extent to which the spring 2 J + can be bowed by the pressure applied to it by the seal 83, so that the spring cannot be permanently deformed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Closures For Containers (AREA)
  • Mechanical Control Devices (AREA)
EP79100194A 1978-01-23 1979-01-23 Riegel Withdrawn EP0003350A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2641/78A GB1600691A (en) 1978-01-23 1978-01-23 Washing material dispensers
GB264178 1978-01-23

Publications (1)

Publication Number Publication Date
EP0003350A1 true EP0003350A1 (de) 1979-08-08

Family

ID=9743161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100194A Withdrawn EP0003350A1 (de) 1978-01-23 1979-01-23 Riegel

Country Status (4)

Country Link
EP (1) EP0003350A1 (de)
AU (1) AU4349079A (de)
ES (1) ES477058A1 (de)
GB (1) GB1600691A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095661A2 (de) * 1982-05-31 1983-12-07 INDUSTRIE ZANUSSI S.p.A. Trommel für eine obenbeschickbare Wäschewaschmaschine
DE102009014233A1 (de) * 2008-12-23 2010-06-24 Convotherm Elektrogeräte GmbH Verschluss für eine Tür eines Gargeräts, Gargerät und Verfahren zum Betreiben eines Gargerätes
WO2011139506A1 (en) * 2010-04-26 2011-11-10 Illinois Tool Works Inc. Appliance latch with improved door retention at elevated temperatures
US20140159381A1 (en) * 2011-07-15 2014-06-12 Rahrbach Gmbh Securing Mechanism for Closing a Door, in Particular an Appliance Door

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU656040B2 (en) * 1991-11-26 1995-01-19 Maureen Anne Harris Sliding door and window security means
DE102009016812B4 (de) 2008-04-11 2022-02-03 Rahrbach Gmbh Türverschluss für ein thermisches Gar- und/oder Backgerät

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507511A (en) * 1945-09-19 1950-05-16 Rockwell Mfg Co Refrigerator door latch
FR988917A (fr) * 1944-01-29 1951-09-03 Citroen Sa Andre Serrure de porte
FR1181268A (fr) * 1957-08-16 1959-06-12 Motocycles Et Accessoires Atel Perfectionnements apportés aux dispositifs de verrouillage pour les panneaux de fermeture des coffres d'automobile
US3186746A (en) * 1961-12-09 1965-06-01 Gen Motors Corp Latches
US3235299A (en) * 1962-02-02 1966-02-15 Murray Mfg Corp Wire spring catch for doors
US3764172A (en) * 1971-10-29 1973-10-09 Cons Controls Corp Latch assembly
DE2457254A1 (de) * 1974-12-04 1976-06-10 Agfa Gevaert Ag Einschnappende verriegelungsvorrichtung
GB1493332A (en) * 1974-02-20 1977-11-30 Peugeot Latching mechanism for example for a vehicle bonnet
DE7734010U1 (de) * 1977-11-05 1978-02-16 Buderus Ag, 6330 Wetzlar Tuerverschluss, insbesondere fuer schraenke in flugzeugbordkuechen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR988917A (fr) * 1944-01-29 1951-09-03 Citroen Sa Andre Serrure de porte
US2507511A (en) * 1945-09-19 1950-05-16 Rockwell Mfg Co Refrigerator door latch
FR1181268A (fr) * 1957-08-16 1959-06-12 Motocycles Et Accessoires Atel Perfectionnements apportés aux dispositifs de verrouillage pour les panneaux de fermeture des coffres d'automobile
US3186746A (en) * 1961-12-09 1965-06-01 Gen Motors Corp Latches
US3235299A (en) * 1962-02-02 1966-02-15 Murray Mfg Corp Wire spring catch for doors
US3764172A (en) * 1971-10-29 1973-10-09 Cons Controls Corp Latch assembly
GB1493332A (en) * 1974-02-20 1977-11-30 Peugeot Latching mechanism for example for a vehicle bonnet
DE2457254A1 (de) * 1974-12-04 1976-06-10 Agfa Gevaert Ag Einschnappende verriegelungsvorrichtung
DE7734010U1 (de) * 1977-11-05 1978-02-16 Buderus Ag, 6330 Wetzlar Tuerverschluss, insbesondere fuer schraenke in flugzeugbordkuechen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095661A2 (de) * 1982-05-31 1983-12-07 INDUSTRIE ZANUSSI S.p.A. Trommel für eine obenbeschickbare Wäschewaschmaschine
EP0095661A3 (de) * 1982-05-31 1984-09-05 INDUSTRIE ZANUSSI S.p.A. Trommel für eine obenbeschickbare Wäschewaschmaschine
DE102009014233A1 (de) * 2008-12-23 2010-06-24 Convotherm Elektrogeräte GmbH Verschluss für eine Tür eines Gargeräts, Gargerät und Verfahren zum Betreiben eines Gargerätes
WO2011139506A1 (en) * 2010-04-26 2011-11-10 Illinois Tool Works Inc. Appliance latch with improved door retention at elevated temperatures
US9410349B2 (en) 2010-04-26 2016-08-09 Illinois Tool Works Inc. Appliance latch with improved door retention at elevated temperatures
US20140159381A1 (en) * 2011-07-15 2014-06-12 Rahrbach Gmbh Securing Mechanism for Closing a Door, in Particular an Appliance Door
US9631405B2 (en) * 2011-07-15 2017-04-25 Rahrbach Gmbh Securing mechanism for closing a door, in particular an appliance

Also Published As

Publication number Publication date
AU4349079A (en) 1979-08-02
GB1600691A (en) 1981-10-21
ES477058A1 (es) 1980-01-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR IT

17P Request for examination filed
STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19820113

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REY, PIERRE JEAN-MARIE