EP1001068A1 - Vorrichtung zum Öffnen und Schliessen der Trommel einer von oben beschickbaren Wasch- oder Trockenmaschine - Google Patents

Vorrichtung zum Öffnen und Schliessen der Trommel einer von oben beschickbaren Wasch- oder Trockenmaschine Download PDF

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Publication number
EP1001068A1
EP1001068A1 EP99402762A EP99402762A EP1001068A1 EP 1001068 A1 EP1001068 A1 EP 1001068A1 EP 99402762 A EP99402762 A EP 99402762A EP 99402762 A EP99402762 A EP 99402762A EP 1001068 A1 EP1001068 A1 EP 1001068A1
Authority
EP
European Patent Office
Prior art keywords
trigger
bolt
drum
rotation
keeper
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Withdrawn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
EP99402762A
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English (en)
French (fr)
Inventor
Albert Thomson-CSF Propriete Int. De La Tour
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
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 Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Publication of EP1001068A1 publication Critical patent/EP1001068A1/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Withdrawn legal-status Critical Current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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/10—Doors; Securing means therefor

Definitions

  • the present invention relates to a closure device and opening the drum of a washing or drying machine top loading. It applies equally to washing machines or dry only with machines that wash and dry at the same time.
  • the user must in fact open at least the door of the carcass of the machine and the drum door.
  • This additional action that is the opening of the drum is not as harmless as it seems.
  • First she complicates the task of the user who generally accesses the drum of a machine being also loaded with laundry.
  • the economy of a additional opening which is generally not easy, is therefore beneficial for the user.
  • opening the drum is often quite complicated, and even possibly hurtful, in particular on the fingers and in particular nails. This difficulty of opening, but also of closure, comes from in particular of the fact that the door of the drum consists of two leaves.
  • the object of the invention is in particular to remove all of these disadvantages by removing for example the step of opening the door of the drum, providing for the possibility of automatic opening of this last so that once the user has opened the door to the carcass of a washing machine and / or dryer, the drum door is already open and has direct access to the drum.
  • the invention relates to a closure device and opening the drum of a washing and / or drying machine, characterized in that it has a pivoting leaf relative to the drum by a hinge, a keeper mechanically secured to the leaf, a bolt and a trigger mechanically secured to the drum with a degree of freedom in rotation, and unlocking means, the leaf being maintained in the closed position by engaging the latch in the strike, the bolt and trigger cooperating so that the trigger blocks the bolt in the keeper under the effect of the return spring of the bolt which maintains this last pressing against the trigger, and so that the rotation of the trigger caused by the unlocking means releases the bolt from the spoils.
  • the main advantages of the invention are that it allows automatic opening but also manual opening simple of the drum, that it is independent of the type of motorization used for driving the drum, it allows the blocking of the drum during loading or unloading the laundry, and it requires no effort particular for closing and / or opening.
  • FIG. 1 schematically illustrates a machine 1, by example to be washed, in the open state. More specifically, door 2 of the carcass is open, as well as the door of the drum 5, a leaf 3 of which is represented.
  • the latter is, in the open position, supported and maintained on the edge 4 of the tank by return springs to allow the user to load or unload the drum without the need to maintain the gate open.
  • the flaps of the gate pass from the closed position to this open position, first under the effect of an unlocking carried out by user, then return springs.
  • There is a loud click noise leaves on the edges of the tank and possibly the carcass. This noise is worrying for users. This discomfort is added to that caused by the additional opening of the drum door.
  • FIG. 2 illustrates a known solution for closing the drum of a washing machine or dryer, solution similar to all the types of machines found on the market.
  • the closure includes two doors. These leaves 11, 12 pivot on themselves using hinges 13, 14 connected to the ferrule 15.
  • the locking of the two leaves is ensured for example by a latch 16 fixed to one of the leaves, this latch coming to cling to the other wing. Maintaining the bond between two leaves from the force exerted, towards the opening, by springs recall 17, 18 on these leaves.
  • springs recall 17, 18 on these leaves.
  • these springs have a great restoring force.
  • FIG. 3 illustrates, by an overall view, elements of a example of possible embodiment of an opening and closing device a drum, a washing machine and / or drying the laundry, according to the invention.
  • This device comprises a leaf 21 which is handled by a handle 30.
  • the leaf 21, shown in opening, pivots relative to drum 23 by a fixing hinge 22.
  • a keeper 24 is mechanically secured to the leaf 21, opposite a bolt 25 mechanically secured to the drum 23.
  • a trigger 26 and an unlocking cam 31 are also mechanically secured to the drum. More particularly, the bolt 25, the trigger 26 and cam 31 are for example mechanically integral with a mechanical part 27 fixed on the drum.
  • the trigger 26 and the cam unlocking 31 are for example arranged on one side and the other of the bolt 25.
  • All these elements 25, 26, 31 have a degree of freedom in rotation relative to the drum 23 and cooperate with each other.
  • the leaf 21 is maintained in the closed position by engaging the bolt 25 in the keeper 24.
  • the bolt and the trigger 26 cooperate so that the trigger blocks the bolt in the striker under the effect of the bolt return spring which maintains the latter pressing against the trigger, and so that the rotation of the trigger 26 caused by unlocking means, such as the cam 31 or any other means, releases the latch from the keeper.
  • FIGS 4a and 4b illustrate the operation of a device according to the invention in the case of an automatic opening.
  • the device comprises, as unlocking means, an electromagnet 29 controlled by electrical means not shown.
  • These means include for example an interface to transform into a signal power, capable of activating the electromagnet, a control signal low power produced for example by digital circuits, by example present in the programmer of the machine.
  • the signal from command opens and closes for example an electronic switch, of the type thyristor or transistor, to supply or not with current the electromagnet.
  • the electromagnet 29 is powered.
  • the programmer sends a signal to the electromagnet 29 via the power interface.
  • the programmer sends otherwise for example in a conventional manner an order to rotate the drum 23 at slow speed.
  • the electromagnet 29 is for example fixed to the tank 28 of the machine, in the upper part, preferably on the outside of the tank for reasons including electrical safety. It has a rod 291 which moves when the coil 292 of the electromagnet is supplied with current. At rest, in the absence of current, the rod is retracted, more precisely it remains largely inside the coil 292. If the electromagnet is placed outside the tank, the rod crosses the tank 18. A seal between the tank and the rod can by example be expected. However, since the electromagnet is in upper part, this joint may not be essential. When the electromagnet 29 is supplied with current, its rod 291 moves towards the inside of tank 28.
  • Figures 4a and 4b show side views of elements such as shown in Figure 3.
  • the bolt 25 rotates around an axis mechanical 251 and the trigger 26 rotates about a mechanical axis 261.
  • These mechanical axes are fixed on the drum, for example on the workpiece mechanical 27 above. They are parallel to each other and substantially orthogonal to the direction of movement of the rod 291.
  • the rotation of the trigger 26 also causes the bolt 25 to rotate, thanks to profiles well determined from these parts 25, 26 as illustrated by the examples of embodiment shown in Figures 4a and 4b.
  • FIG. 4a shows the rod 291 at the start of its movement, after the activation order of the electromagnet 29.
  • the drum is still closed, that is to say that the leaf 21 is still in the closed position.
  • the bolt 25 is engaged in the strike 24, which keeps the shutter closed.
  • the bolt 25 also cooperates on two faces 41, 42 with the trigger 26, the two faces 41, 42 of the bolt being in contact with one or the other of two faces 43, 44 of the trigger 26, according to the rotational position of the latter.
  • a first face 41 of the bolt is supported on a first face 43 of the trigger.
  • the bolt 25 includes a return spring not shown, which tends to keep the face 41 of the bolt in contact with the face 43 of the trigger 26.
  • the assembly consisting of the bolt and the trigger is therefore in a stable relative position under the effect of the bolt return spring which forces the latter to press against the trigger.
  • the trigger actually blocks the latch in strike 24.
  • FIG. 4b shows the same rod 291 at the end of the stroke or almost.
  • the trigger 26, which rotates with the drum 23 according to a direction F abuts on the rod 291 of the electromagnet. Thanks to the force induced by the rotation of the drum, the trigger pivots around its axis of rotation 261 until releasing the bolt 25 from the strike 24, the bolt being distant of the keeper under the action of its return spring. By freeing oneself from the keeper, the bolt allows the leaf 21 to open under the effect of its spring reminder, not shown and placed at the hinge 22.
  • the spring of reminder of the leaf does not need for this opening to present a very great strength unlike in the case of a traditional gate with two leaves which require springs with very large restoring forces, to especially prevent their opening during rotation of the drum.
  • the leaf return spring 21 is only used here to open it when its blocking means, in particular the bolt and the strike, release it.
  • the bolt 25 pivots for example also around its axis of rotation 251.
  • the bolt locks the trigger in open position, a second face 42 of the bolt coming to rest on a second face 44 of the trigger.
  • the trigger and the bolt are still here in a stable position by the effect of the bolt return spring which keeps it pressed against the trigger.
  • This trigger blockage 26 allows in particular to block the drum rotating forwards during the loading or unloading of linen. To ensure this blocking, the trigger 26 is for example in abutment on the tank 28.
  • the trigger abuts on a lug which projects towards the inside of the tank, or, as is shown in Figures 4a and 4b, the trigger abuts inside a external recess 281 of the tank, the rod of the electromagnet passing in particular by this recess 281.
  • the stop of the trigger in a hollow has the particular advantage of allowing a rotation lock in both sense, once in particular once the rod 291 of the electromagnet has returned to its rest position inside the coil 292.
  • Any system of position sensor not shown, allows for example to cut the power to the drum drive motor once the gate is open and the drum is in the high position, i.e. the opening of the drum is opposite the opening of the machine.
  • FIGs 5a and 5b in side views, describe a manual opening of a device according to the invention.
  • This manual opening can for example be added to the automatic opening possibility described previously. It can also be implemented in the absence of opening automatic provided elsewhere.
  • the opening mode as illustrated by these figures notably involves the handle 30 and the cam 31 which cooperate between them as unlocking means, the cam also cooperates with trigger 26.
  • the bolt 25 and the trigger 26 cooperate with each other in the same way as in the case of opening automatic illustrated in Figures 4a and 4b.
  • the closure of the beating 21 is always ensured by the engagement and maintenance of the bolt 25 in the strike 24.
  • the unlocking cam 31 can rotate around a mechanical axis 311 parallel to axes 251, 261 of the bolt and of the trigger, like the latter the axis 311 of the cam is for example integral with the drum 23 by the aforementioned mechanical part 27.
  • the handle 30 can side turn around a mechanical axis 311 parallel to the previous axes and mechanically secured to the leaf 21.
  • Figure 5a shows the leaf 21 in the closed position.
  • a user causes the leaf 21 to open.
  • rotational movement thus produced, the handle 30, for example by one of its ends 303 acts on the unlocking cam 31.
  • the handle rests on the cam then imposes a rotational movement on it or a pivot.
  • cam 31 rotates or pivots the latter by so that it releases the bolt 25, which under the effect of its return spring then disengages the keeper 24, thus causing the leaf 21 to open under the effect of its return spring, and as illustrated in particular in the figure 5b.
  • FIG. 5b also shows that the trigger comes, for example, into abutment against the tank 28 to allow locking in rotation as described previously, the trigger remaining in the open position by pressing one side 42 of the bolt on one of its faces 44, this support being maintained by the action of the bolt return spring.
  • the mechanical part has for example a rounded shape to surround in particular the bolt, the trigger and the cam unlocking.
  • the user To lock the gate in the closed position after having loaded the laundry inside the drum, the user only has to press the beating 21 of the gate until the strike 24 comes to rotate the latch 25, by pressing on one face 52 of the latter, so that one of its parts engages in waste.
  • the bolt 25 is then locked in rotation, and therefore kept engaged in strike 24, by the action of trigger 26 which pivots towards the bolt 25 thanks to a return spring not shown.
  • the trigger By rotational movement, the trigger also leaves for example its abutment position against the tank 28 and thus frees the rotation of the drum 23.
  • the rod 291 of the electromagnet which unlocks for example the trigger 26 in the case of automatic opening, or the handle 30 in association with cam 31, which for example unlocks trigger 26 in the case of manual opening, can be replaced by other unlocking means.
  • the invention has the particular advantage of allowing both a automatic and manual opening, or only one of the two, opening manual as well as closing being simple and requiring no effort particular. It is also independent of the type of engine used for training the drum.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP99402762A 1998-11-06 1999-11-05 Vorrichtung zum Öffnen und Schliessen der Trommel einer von oben beschickbaren Wasch- oder Trockenmaschine Withdrawn EP1001068A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9814027 1998-11-06
FR9814027A FR2785624B1 (fr) 1998-11-06 1998-11-06 Dispositif de fermeture et d'ouverture du tambour d'une machine a laver ou a secher le linge a chargement par le dessus

Publications (1)

Publication Number Publication Date
EP1001068A1 true EP1001068A1 (de) 2000-05-17

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EP99402762A Withdrawn EP1001068A1 (de) 1998-11-06 1999-11-05 Vorrichtung zum Öffnen und Schliessen der Trommel einer von oben beschickbaren Wasch- oder Trockenmaschine

Country Status (2)

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EP (1) EP1001068A1 (de)
FR (1) FR2785624B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1298242A1 (de) * 2001-09-28 2003-04-02 Sanyo Electric Co., Ltd. Entwicklungen zum öffnen der Trommel und des Manteldeckels einer von oben beschickbaren Waschmaschine
EP1422333A1 (de) * 2002-11-22 2004-05-26 CANDY S.p.A. Trommelöffnungsystem für mantelbeschickbare Waschmaschine und/oder Wäschetrockner
US7073356B2 (en) 2001-09-28 2006-07-11 Sanyo Electric Co., Ltd. Drum type washing machine
US7836607B2 (en) * 2004-06-05 2010-11-23 Lg Electronics Inc. Drum of laundry dryer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870925A (en) * 1931-09-16 1932-08-09 Us Hoffman Machinery Corp Cylinder for washing machines and the like
US2088915A (en) * 1933-12-02 1937-08-03 Us Hoffman Machinery Corp Washing machine
JPH0257297A (ja) * 1988-08-23 1990-02-27 Mitsubishi Electric Corp 回転ドラムの扉開閉装置
US5437168A (en) * 1994-05-02 1995-08-01 Whirlpool Corporation Top loading horizontal axis automatic washer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870925A (en) * 1931-09-16 1932-08-09 Us Hoffman Machinery Corp Cylinder for washing machines and the like
US2088915A (en) * 1933-12-02 1937-08-03 Us Hoffman Machinery Corp Washing machine
JPH0257297A (ja) * 1988-08-23 1990-02-27 Mitsubishi Electric Corp 回転ドラムの扉開閉装置
US5437168A (en) * 1994-05-02 1995-08-01 Whirlpool Corporation Top loading horizontal axis automatic washer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 232 (C - 0719) 17 May 1990 (1990-05-17) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1298242A1 (de) * 2001-09-28 2003-04-02 Sanyo Electric Co., Ltd. Entwicklungen zum öffnen der Trommel und des Manteldeckels einer von oben beschickbaren Waschmaschine
US7073356B2 (en) 2001-09-28 2006-07-11 Sanyo Electric Co., Ltd. Drum type washing machine
EP1422333A1 (de) * 2002-11-22 2004-05-26 CANDY S.p.A. Trommelöffnungsystem für mantelbeschickbare Waschmaschine und/oder Wäschetrockner
US7836607B2 (en) * 2004-06-05 2010-11-23 Lg Electronics Inc. Drum of laundry dryer

Also Published As

Publication number Publication date
FR2785624A1 (fr) 2000-05-12
FR2785624B1 (fr) 2001-02-02

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