EP1502985A2 - Dispositif de verrouillage et de déverrouillage pour la porte d'un appareil électroménager - Google Patents

Dispositif de verrouillage et de déverrouillage pour la porte d'un appareil électroménager Download PDF

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Publication number
EP1502985A2
EP1502985A2 EP04008951A EP04008951A EP1502985A2 EP 1502985 A2 EP1502985 A2 EP 1502985A2 EP 04008951 A EP04008951 A EP 04008951A EP 04008951 A EP04008951 A EP 04008951A EP 1502985 A2 EP1502985 A2 EP 1502985A2
Authority
EP
European Patent Office
Prior art keywords
locking
unlocking device
disc
switching
ratchet wheel
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Withdrawn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
EP04008951A
Other languages
German (de)
English (en)
Other versions
EP1502985A3 (fr
Inventor
Hubert Harrer
Günter Hengelein
Hermann Schillinger
Thomas Franz
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen 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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of EP1502985A2 publication Critical patent/EP1502985A2/fr
Publication of EP1502985A3 publication Critical patent/EP1502985A3/fr
Withdrawn legal-status Critical Current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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/04—Levers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H01H9/226—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts the casing containing electrical equipment other than and operated by the switch

Definitions

  • the invention relates to a locking and unlocking device for the door or flap of a household electrical appliance, in particular a washing machine or a clothes dryer, with a sliding in a housing part mounted slide, which a first, to engage one on the door or flap the household appliance mounted hook provided locking contour and a second, for blocking the slider by means of a locking member having provided locking contour.
  • a locking and Unlocking device is known for example from DE 199 61 083 A1.
  • the invention has for its object to provide a door lock for an electric Indicate domestic appliance, which is structurally simple and space saving construction a reliable mechanical lock and at the same time Operation of an electrical contact allows.
  • a locking and unlocking device for the door or flap of a household electrical appliance with the features of claim 1.
  • a slider mounted longitudinally displaceable which two usually formed as openings locking contours has, namely a first, for engaging one of the door or flap of the Household appliance mounted hook provided locking contour and a second, provided for blocking the slide by means of a locking member Locking contour.
  • a locking member a ratchet wheel is provided, which are parallel to each other, preferably immediately adjacent to each other, arranged on a common axis, three substantially disc-shaped Elements, namely a drive pulley, a locking disc and a Has switching and locking disk.
  • the ratchet wheel is preferably attached to the drive pulley driven by an electromagnetic actuator.
  • the locking disc is for direct engagement in the second locking contour of Slider, i. usually for engagement in the second locking opening, alternatively however, for example, also for cooperation with a locking groove, Locking nose or other for a determination of the slide suitable contour, provided.
  • the switching and locking disc are two Realized functions, namely on the one hand, the circuit of the simultaneous with the mechanical Locking or unlocking to be actuated electrical switch and on the other hand, the locking of the ratchet wheel in defined angular positions.
  • the switching and Detent disk is in each case a separate one according to a preferred alternative disc-shaped section provided.
  • a combined switching and Detent function or each having a separate switching and latching portion is preferably only a single, possibly two spring tongues exhibiting spring element provided, which in cooperation with the switching and locking disc the corresponding mechanical or electrical function is met.
  • the drive disc acts actuating electromagnetic actuator with this not directly, but by means of a preferably designed as a helical spring power storage element together.
  • the actuation pulse exerted by the actuator to the force storage element passed which triggers the intended rotational movement of the ratchet wheel, as soon as this has sufficient accessibility.
  • the working stroke of the actuator disc actuating actuator can along the direction of displacement the lockable by means of the ratchet wheel and unlockable slide or be aligned transversely to this direction.
  • the drive pulley preferably a locking toothing, which for immediate Drive is provided by an actuated by the actuator linear drive element.
  • the Linear drive element is preferably composed of a directly with the drive disc cooperating spring part and a connected thereto, actuated by the actuator guide part. Due to the only partially resilient Formation of the linear drive element is at the same time with precise moving guidance given a flexible adaptation to the contour of the locking teeth.
  • the drive pulley preferably has a slotted guide, in which is an actuated by the actuator or part of the actuator forming guide fork intervenes.
  • the slotted guide is designed such that the ratchet wheel only rotatable in one direction.
  • the axis of the ratchet wheel is preferably at least in Aligned substantially parallel to the longitudinal axis of the slider. The locking disc the ratchet wheel can thus easily directly into the slide engage and ensure high holding forces.
  • Ratchet fulfills a plurality of electrical and mechanical functions, wherein an actuating pulse emanating from an electromagnetic actuator indirectly is transmitted to the ratchet wheel via a force storage element.
  • Fig. 1 shows essential parts of a locking and unlocking device 1, hereinafter also referred to as a locking device, one electric household appliance, such as a washing machine, in exploded view.
  • a made of plastic housing 2 of the door lock 1 is composed of an upper housing part 3 and a lower housing part 4.
  • Within the housing 2 is a rotatable ratchet wheel 5 to and Unlocking a gate valve or slide 6 is provided.
  • the Axis A of the ratchet wheel 5 parallel to the longitudinal axis L of the slider 6, which is the Indicates shift direction arranged.
  • Coil spring formed spring 7 is provided, which in a longitudinal slot.
  • the slider 6 engages and is articulated on this and on the housing 2.
  • the Slide 6 further has a rectangular opening formed as a first locking contour 9, in which an unillustrated, on the door of the household appliance spring-loaded hook can intervene.
  • a first locking contour 9 in which an unillustrated, on the door of the household appliance spring-loaded hook can intervene.
  • the slider 6 By acting on the hook Spring force, the slider 6 against the force of the spring 7 in the closed position (Fig. 3) are shifted.
  • the open position of the slider 6 is shown in Fig. 2 can be seen.
  • the slider 6 has a total of a cranked, approximately Z-like Shape, wherein the longitudinal slot 8 and the first locking contour 9 in the first, longer Z-leg 10 are arranged.
  • shorter Z-thigh 11 is a second, designed as a rectangular opening locking contour 12, which in the manner explained in more detail below blocking the Slider 6 in the closed position is used.
  • the axis A of the ratchet wheel 5 is located in a plane between the planes given by the Z-legs 10,11.
  • the ratchet preferably made as a one-piece plastic part 5 has as functional sections a drive pulley 13, a locking disc 14 and a switching and locking disk 15.
  • the drive pulley 13 is drivable by means of an electromagnetic actuator 16, which has a arranged in a U-frame 17 coil 18 in the one Magnetic core 19 is slidably guided.
  • the actuator 16 is mounted in the housing 2, wherein two compression springs 20 between the actuator 16 and parts of the housing 2 or in the housing 2 firmly mounted parts are curious that the magnetic core 19, which indicates the direction of the working stroke of the actuator 16, vertically to the axis A and thus also to the longitudinal axis L of the slider 6 is arranged.
  • the magnetic core 19 is through a circular opening 21 of a linear drive element 22 passed, which in the direction of the working stroke of the actuator 16th is mounted longitudinally displaceable and similar to the slide 6 a Z-like basic shape having.
  • a substantially L-shaped portion of the linear drive element 22 formed as a rigid guide member 23.
  • the longitudinal mobility the guide part 23 is cooperating with a stop on the housing 2 Nose 24 limited.
  • a second Z-leg of the linear drive element 22nd forming spring member 25 is connected. This engages with a bending spring tongue 26 in a locking toothing 27 of the drive pulley 13 a (Fig. 4, Fig. 8).
  • the contact spring part 33 is composed of a Bending part 34 and one with this permanently, for example by soldering, connected Double spring part 47, which has a first leaf spring part 35 and a second Leaf spring member 36 has.
  • both leaf spring parts 35,36 act with the Switching and locking disk 15 and the first leaf spring member 35 in addition to the Contact terminal 32 together.
  • the first leaf spring part 35 is by a essentially disc-shaped switching section 37 of the switching and locking disc 15 operable while the second leaf spring member 36 with a directly on the switching portion 37 adjacent latching portion 38 of the switching and locking disc 15 interacts.
  • FIGS. 4 to 10 Show here 4 to 7, the locking device 1 in unlocked and Figs. 8 to 10 the locking device 1 in the locked state.
  • the magnetic core 19 is guided by a through the coil 18 Current pulse attracted towards R.
  • the spring tongue 26 is during the movement triggered by the current pulse across one of nine teeth 39 the ratchet 27 lifted to then back to the ratchet teeth 27 engage, as shown in Fig. 4.
  • the ratchet wheel 5 on nine defined angular positions.
  • the energy storage element 29 is stretched in the switching state shown in FIGS. 4 to 7.
  • the contour of the locking disc 14 is more apparent. These has the basic shape of an equilateral triangle with rounded corners and slightly to the center of the triangle on curved side lines.
  • the Opening 12 of the slide 6 is released by the locking disc 14, i.e. the slider 6 is in the longitudinal direction, in Figs. 4 to 7 perpendicular to the illustrated Plane, movable.
  • Fig. 6 shows the contour of the switching portion 37 of the switching and locking disk 15.
  • the switching portion 37 also has a triangular basic shape with identical angular orientation.
  • Locking plate 14 of the switching section 37 does not act perpendicular to the axis A. with its side facing down in the illustration, but with the after directed upward side on the leaf spring part to be actuated 35. This is the from the contact terminal 32 and the contact spring member 33 formed electrical Contact opened when the slider 6 released by the locking disc 14 is.
  • An operation of the household electrical appliance sets the closing of the electrical contact 32,33, ahead, so that when not blocked slide 6 a Commissioning of the device is excluded.
  • Fig. 7 illustrates the effect of the locking portion 38 of the switching and Detent disk 15 and the cooperating second leaf spring part 36th
  • the second, an end bend 40 having leaf spring member 36 is for fixing the locking portion 38 and thus the entire ratchet wheel 5 in nine different defined angular positions provided. There are three of these Angular positions according to the triangular design of the locking disc 14 and the switching portion 37 of FIGS. 4 to 7 shown Release position of the ratchet wheel 5.
  • FIGS. 8 to 10 A corresponding switching state is shown in FIGS. 8 to 10.
  • the power storage element 29 relaxes and thus rotates by means of the linear drive element 22, the ratchet wheel 5 in the direction of rotation D by 40 °.
  • the rotation by 40 ° is triggered by a single current pulse with which the actuator 16 is actuated.
  • the locking disc 14, as shown in Fig. 9, is engaged with the second locking contour 12, while the electrical contact 32,33 is closed.
  • the ratchet wheel 5 is transferred by two rotations of 40 ° each from the position shown in FIGS. 8 to 10 into the position shown in FIGS. 4 to 7.
  • the ratchet wheel 5 thus has in addition to three unlocking six locking positions and thus a total of nine different defined angular positions.
  • the number of locking positions is denoted by N, where N is at least two, preferably at least three.
  • the Locking section 38 of the switching and locking disk 15 an S-fold toothing.
  • the emergency release lever 41 which as a substantially L-shaped plastic part is formed with integrally formed spring 42 is for unlocking by means of a not shown line in the pulling direction Z (Fig. 2) to pull and engages with a L-leg 46 on the linear drive element 22, so that the force storage element 29 is stretched. After releasing the emergency release lever 41 is As explained with reference to FIGS. 4 to 10, a rotation of the ratchet wheel 5 triggered.
  • FIG. 11 Another embodiment of a locking and unlocking device 1 is fragmentary illustrated in FIG. 11. This is different from Embodiment according to FIGS. 1 to 10 mainly by the nature of the drive the drive pulley 13. This has in this case one along the circumference arranged, jagged slide guide 43. With the slide guide 43 acts a displaceable in the direction of the axis A guide fork 44 together, which directly or indirectly by the actuator 16, in the embodiment only by a Sleeve 45 illustrates being operable. The slide guide 43 is such formed such that a rotation of the ratchet wheel 5 exclusively in one direction is possible.
  • the locking and unlocking device 1 In contrast to the embodiment of FIGS. 1 to 10, the locking and unlocking device 1 according to FIG. 11 only two locking positions on. Furthermore, the switching and locking function of the ratchet wheel fifth realized by a switching and locking disk 15 with a uniform contour.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP04008951A 2003-07-28 2004-04-15 Dispositif de verrouillage et de déverrouillage pour la porte d'un appareil électroménager Withdrawn EP1502985A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10334641A DE10334641B3 (de) 2003-07-28 2003-07-28 Verriegelungs- und Entriegelungsvorrichtung für die Tür eines elektrischen Haushaltsgerätes
DE10334641 2003-07-28

Publications (2)

Publication Number Publication Date
EP1502985A2 true EP1502985A2 (fr) 2005-02-02
EP1502985A3 EP1502985A3 (fr) 2010-04-28

Family

ID=32748340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04008951A Withdrawn EP1502985A3 (fr) 2003-07-28 2004-04-15 Dispositif de verrouillage et de déverrouillage pour la porte d'un appareil électroménager

Country Status (2)

Country Link
EP (1) EP1502985A3 (fr)
DE (2) DE10334641B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113693375A (zh) * 2021-09-04 2021-11-26 九江职业技术学院 一种环境艺术设计用多功能绘图装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20040160U1 (it) * 2004-12-21 2005-03-21 Bitron Spa Dispositivo blocca-porta, particolarmente per un apparecchio elettrodomestico
CN107799335B (zh) * 2017-10-25 2019-09-10 温州启真信息技术有限公司 一种用于电力系统防误操作的闭锁装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938908A1 (de) * 1969-07-31 1971-02-11 Licentia Gmbh Kuechenherd
GB2207179B (en) * 1987-07-09 1991-09-18 Gold Star Co Door latch assembly
IT1303590B1 (it) * 1998-12-18 2000-11-14 Bitron Spa Dispositivo di bloccaggio e sbloccaggio del portello di un apparecchioelettrodomestico.
DE19915669A1 (de) * 1999-04-07 2000-10-12 Ltd Locking Technologies And D Türverriegelung
IT1320477B1 (it) * 2000-06-30 2003-11-26 Bitron Spa Dispositivo blocca-porta, particolarmente per un apparecchioelettrodomestico.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113693375A (zh) * 2021-09-04 2021-11-26 九江职业技术学院 一种环境艺术设计用多功能绘图装置

Also Published As

Publication number Publication date
DE10334641B3 (de) 2004-08-26
DE202004005895U1 (de) 2004-08-19
EP1502985A3 (fr) 2010-04-28

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