EP3336292A1 - Method for actuating a door lock and door lock - Google Patents
Method for actuating a door lock and door lock Download PDFInfo
- Publication number
- EP3336292A1 EP3336292A1 EP16204036.4A EP16204036A EP3336292A1 EP 3336292 A1 EP3336292 A1 EP 3336292A1 EP 16204036 A EP16204036 A EP 16204036A EP 3336292 A1 EP3336292 A1 EP 3336292A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- striker
- door
- door lock
- bolt
- latch
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000002040 relaxant effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/22—Locks or fastenings with special structural characteristics operated by a pulling or pushing action perpendicular to the front plate, i.e. by pulling or pushing the wing itself
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/04—Spring arrangements in locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
- E05B17/0029—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing motor-operated
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
- E05B17/0033—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing for opening only
- E05B17/0037—Spring-operated
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
- E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
- E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C3/00—Fastening devices with bolts moving pivotally or rotatively
- E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C3/00—Fastening devices with bolts moving pivotally or rotatively
- E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
- E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
- E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B53/00—Operation or control of locks by mechanical transmissions, e.g. from a distance
- E05B53/006—Operation or control of locks by mechanical transmissions, e.g. from a distance of ball-train type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
- E05C2005/005—Pivoting bolts or catches being able to move in an additional direction, e.g. by sliding or by pivoting about an additional axis, in order to allow closing of the wing even if the bolt or catch is in its locked position
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/69—Washing machine or stove closure latch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1051—Spring projected
- Y10T292/1052—Operating means
- Y10T292/1057—Flexible
Definitions
- the present invention relates to a method for actuating a door lock with a lock mechanism in a door lock housing for a door of a household electrical appliance, preferably dishwasher, in which a latch is moved by means of a spring element for locking from an open position to a locking position, wherein in the open position, the door opened and the latch with a case of a household appliance arranged striker is disengaged and closed in the locked position the door, the striker is in a locking position in the door lock housing and the latch is engaged with the latch.
- the invention also relates to a door lock for a household electrical appliance with an attachable in the door of the household appliance door lock housing with an opening for a fastened to the appliance striker, arranged in the door lock housing latch for engaging in a case in the striker in a locking position, in the the striker is in a locking position, wherein the latch has a contact surface and is connected to a rotatably mounted about an axis lever member, and a spring element between the lever member and an abutment is arranged.
- the door lock can be installed both in the door and in the housing of the appliance. At the other of these two parts is a striker, which is introduced when closing the door in the lock and hooks there.
- the present invention relates to the cases where the door lock is placed in the door.
- the fronts of the household appliances can have a handle to open the door in the traditional way or be opened in handle-less fronts by appropriate adjusting mechanisms, which are triggered either automatically by the machine or by the operator.
- the closing spring is tensioned when opening the door, so as to build the closing force for the closed state.
- a door lock of the type described above is known in which the closing spring is tensioned in an open position of the door lock.
- the door lock has a frame with an opening for a striker and a closing member, such as a closing lever, in the frame.
- a closing spring which is arranged between the closing member and an abutment in the frame, wherein the closing member is in communication with a gripping device.
- the gripping device is pressed in the open position of the door lock by the closing spring at a contact point against a part of the frame or in the frame and thus prevents the relaxation of the spring.
- the gripping device has a gripping trap, into which the striker can be inserted when entering through the opening of the rack, and which has a contact surface against which the entering striker presses causing a movement of the gripping device.
- the gripping device is shaped so that it loses contact with the contact point during a movement of the hook and thereby relax the closing spring.
- the present invention is therefore the object of proposing a way for the operation of a door lock or a door lock for household appliances, especially for dishwashers, in which the lock mechanism is designed to be functional so that it can be unlocked both manually and automatically (opened) and a correspondingly designed door lock is easily adaptable to doors with or without handle can be used.
- the spring element is relaxed with respect to the applied closing force and locking the door is brought starting from the open position of the bolt under tension of the spring element in the locking position.
- a closing force which is determined by the spring element.
- the applied operating force can be applied by muscle force manually, for example, by pulling on the door or by an active element by machine.
- the locking positions taken thereby may differ from each other.
- the movement of the bolt from the locking position to the open position can, depending on the type the actuation, be realized by a single or by several movements.
- an actuator of the lock mechanism located at the lock position of the striker is pressed against the striker so that the striker is moved by moving away, i. Pushing away the actuator reaches the locking position.
- the spring element is first stretched over the actuator by means of the striker and thereby moves the latch from the open position to an intermediate position and then partially relaxes the spring element while the bolt while maintaining a remaining, the closing force forming residual stress of the spring element, from the intermediate position moved to the locked position. Due to the above-described embodiment or arrangement of the door lock housing, the door is moved during the closing, so that passes through the movement of the door lock housing of the striker in the door lock housing.
- the bolt thus moves from the open position first into an intermediate position in which the bolt is not yet in engagement with the striker, and then from the intermediate position into the locking position.
- the initially relaxed with respect to the closing force spring element is fully cocked in the intermediate position and partially stretched in the locking position and thus receives an adjustable closing force with which the latch presses in the case of the striker on the striker, upright.
- the bolt is moved by a relative movement of the striker to the bolt against the closing force of the spring element from the locking position to a first unlocked position.
- the actuating force is applied by an electrical active element.
- the actuator is moved back into its starting position during or after leaving the locking position by the striker.
- This movement can be effected by supporting the spring element via the lever element and the inherent force of the actuator or solely by the force of the actuator.
- the door lock according to the invention is characterized in that in the open position in which the door is unlocked, the spring element is relaxed with respect to an applied clamping force and the lever member holds the latch in a striker area, which is taken in the locking position of the striker.
- the bolt is thus located substantially in a region which it occupies even in the locking position in which it is arranged in the latch in the striker. In order to get into the locking position, thus the bolt must first be moved out of this striker area.
- the spring element itself may also be biased in the open position, but this bias has only effect on the active forces of the spring element to be adjusted as such, but not on actuation in connection with the lock.
- an actuator which comprises an actuating element and a rotary member which is mounted in the door lock housing and is rotatable about an axis, and acts on the striker during the locking operation.
- the actuating element lies in the open position in a recess in the door lock housing and thereby extends into the striker area. In the locking position, it lies in a subsequent to the striker area arcuate guide portion of the recess in the door lock housing.
- the guide area serves to deflect the actuating element in the door lock housing by approximately 180 °.
- the tangentially acting on the rotary member when locking actuator can be configured for example as an elastic spring band, which by the Guide the recess is placed over the arcuate guide area under tension.
- the spring element can relax and thereby go back to the open position, so that the cooperating with the actuator rotary element thereby also returns to its original position.
- the same can also be realized by a roller belt consisting of a plurality of parallel cylindrical rollers, in which case a torsion spring is to be arranged on the rotary element, which causes the return movement of the actuator, ie the rotary member and the actuating element, into the starting position in the open position.
- the rollers and the spring band may be formed of plastic or metal.
- Advantageous may be the magnetic training of metallic rollers.
- the actuator extends into a region of the recess, the striker region, which is occupied by the striker in its locking position.
- the striker presses against the actuating element and pushes it into the arcuate recess in the door lock housing.
- the rotary element of the actuator rotates about the axis mounted in the door lock housing.
- the rotary element of the actuator and the lever element on the circumference arranged teeth, which are engageable with each other and disengageable.
- the teeth of the actuator's rotary member and the teeth of the lever member engage in the initial movement of the actuator.
- the number of teeth depends on the distance that has to be moved into the lever element. Usually, these are one to three teeth, which are to be provided both in the actuator and the rotary member.
- the lever element is rotatably mounted in a mounted on the axis of the rotary member in the door lock housing tilting bearing.
- the lever element can be rotated about the axis of the rotary element by the striker pressing on the latch in order to move the latch from the open position into the intermediate position.
- the bolt is thus not moved by the teeth from the open position to the intermediate position, but first by the indirect action of the striker on the actuator with the intermeshing teeth and finally by the striker directly.
- This embodiment also allows the opening of the bolt by the lever member moves under the action of force by the striker about the axis of the rotary member.
- this embodiment also makes automatic opening possible by means of an electromagnetic active element which acts on the axis of the lever element.
- an electromagnetic active element which acts on the axis of the lever element.
- the door can be opened either manually or automatically.
- manual opening by pulling by hand on the door, preferably over the latch by a relative movement of the striker to the bolt against the closing force of the spring element, the lever member is at least partially rotated about its axis until either the bolt passes solely by the rotational movement or by a force applied by the striker to the tilting bearing force from the case of the striker.
- the actuator can thereby relax and stretch in the direction of the striker, wherein, as stated above, either a spring band relaxes or a roller belt moving torsion spring relaxes.
- an electromagnetic active element engages the axis of the lever element, so that the lever element for opening the bolt can be moved out of its position during locking by force applied by the tilting bearing.
- the unlocking position assumed by the bolt deviates from the unlocking position during the manual opening.
- the spring element moves, in the absence of an opposing force, regardless of the manner in which the opening of the door lock is done and in which unlocking the bolt is, back to the open position and relaxes it, so that the starting position is achieved by all involved elements of the door lock in the open position with relaxed spring element.
- the lever member rotates back to its position in the open position, wherein the axis of the lever member is brought by the tilting bearing back to the starting position.
- microswitches may be arranged to transmit the respective position of the bolt to a machine control.
- a microswitch the open position and if necessary, also report the closed position by a corresponding electrical signal to the machine control.
- a handle-less door can be detected, for example, by a sensor usually provided for this purpose, when the user presses against the door and thus the position of the bolt or the door changes slightly overall. This change triggers a corresponding signal in the machine control out, so that thereby actuates the solenoid and the latch is moved from the case of the striker.
- the design also makes it possible, by the machine control at a certain time, for example, to support the drying process (EcoDry) to actuate the solenoid and unlock the door lock.
- the opening of the door is then usually by the gravity of the door, in addition, a support by the relaxing actuator, which presses against the striker, can take place.
- opening elements such as compression springs. Due to the inventive design of the door lock and the arrangement of the spring element in conjunction with the lever element with a translation is a relatively long path of movement of the moving end of the spring element, so that this can be advantageously used to the bolt position and even with a handle-less door the opening desire recognize the operator.
- an encoder body connected to the end of the spring element can be provided, which is guided with the movement of the end of the spring element via at least one coil located in a printed circuit board for generating a measurement signal.
- FIG. 1 shows the open position of the door lock 1 with a door lock housing 2, which is arranged in a door 4 of a household electrical appliance, in particular a dishwasher.
- a striker 9 protrudes from the housing of a household appliance 5 to be engaged by an opening 23 with the lock mechanism 3 arranged in the door lock housing 2.
- the striker 9 has a latch 8 for engaging a bolt 6 arranged in the door lock housing 2.
- the tip of the striker 9 has a closing surface 17 on the fall side and an abutment surface 19 on the free end of the striker 9.
- On the underside of the striker 9 is a sloping pressure surface 18.
- In the lock housing 2 is a about an axis 24 rotatably mounted lever member 12, on which the latch 6 is arranged.
- the spring element 7 is designed as a compression spring, which is in the open position under an adjustable bias to adjust the spring characteristics and spring forces for the function of the lock mechanism 3.
- the oblique arrangement of the spring element 7 in this embodiment results from the predetermined space in the door 4. Basically, with a different available space and a different arrangement of the spring element 7 with or without deflection possible.
- an actuator 20 which consists of parallel rollers 35, which may also be magnetic.
- the actuator 20 is located with its end facing away from the striker 9 at a rotary member 21 and forms together with this an actuator 10.
- the rollers 35 are guided at their ends in a recess 22, and laterally project beyond the rotary member 21 which has one end 21st 'protrudes into the arcuate portion 22' of the recess 22.
- the arcuate portion 22 'of the recess 22 allows a deflection of the actuating element 20 by 180 °.
- On the opposite side of the end 21 'of the rotary member 21 are two teeth 27, which come with a rotation of the rotary member 21 about the mounted in the door lock housing 2 axis 25 in engagement with teeth 26 on the lever member 12.
- the spring element 7 In the open position of the door lock 1 shown in this figure, the spring element 7 is in a relaxed position with respect to the closing operation, the bolt 6 and also the actuator 20 in a striker area 41, which is occupied by the striker 9 in its locking position.
- FIG. 2 shows accordingly the opposite side of the door lock 1.
- tilting member 28 with two Kippelementarmen 28 ', 28 "partially cut, which is rotatable about the mounted in the door lock housing 2 axis 25 of the rotary member 21.
- the lever member 12 Between the Kippelementarmen 28', 28” is the lever member 12 with its axis 24th stored.
- a torsion spring 31 is arranged, which with a Arm engages in the rotary member 21 and rotates with this, while the other arm of the torsion spring 31 in a recess 40 in the Kippelementarmen 28 ', 28 "of the tilting element 28 and is supported on the Kippelementarmen 28', 28".
- the recess 40 appears in this representation as an opening.
- a circuit board 32 is arranged with the associated control electronics.
- the control electronics also includes not shown arranged in the circuit board 32 coils over which a transmitter body 33 is movable.
- the encoder body 33 may also be arranged only on one side of the circuit board 32. It is rigidly connected to the spring holder 15 and thus moves with this. By the movement of the encoder body 33 along the coils, not shown, measuring signals can be generated in a known manner, which are used to detect the current position of the bolt 6. These are essentially the open position and the locked position.
- the spring holder 15 is moved approximately by 2.5 times the distance with only a small movement of the bolt 6, so that a measurement signal is generated by this movement, which are used for automatic opening of the door lock 1 can.
- a handle-less door 4 can be detected by compressing a door seal by a predetermined number of pressure movements against the door 4, this slight movement of the bolt 6 and thereby the opening process to be triggered.
- FIG. 3 shows the door lock housing 2 with a arranged outside the door lock housing 2 solenoid 11 with an armature 34 which engages the protruding from the door lock housing 2 axis 24 of the lever member 12.
- the solenoid 11 is also connected to the door lock housing 2 as the circuit board 32.
- the figure still illustrates the rigid one-piece design of the spring holder 15 with the encoder body 33rd
- FIG. 4 shows again in the open position according to the FIG. 1 wherein in this figure and in the following for illustrative purposes, the sectional plane has been placed partially deeper in the door lock housing 2, so that in particular the actuator 10 and the lever member 12 are shown in section to better illustrate the operation.
- FIG. 6 is the turning process more advanced.
- Rotary element 21 and lever member 12 have turned further, whereby the spring element 7 was even more tensioned.
- the striker 9 is reached with the oblique pressure surface 18 in contact with the contact surface 36 of the bolt 6, so that the lever member 12 at a further movement of the striker 9 due to the mounting of the lever member 12 in the tilting member 28 with its axis 24 about the axis 25th and thus moved in the figure obliquely down.
- FIG. 7 shows the consequence of this movement, in which the striker 9 has penetrated further into the straight portion of the recess 22 provided for him.
- the rotary element 21 of the actuator 10 has also continued to rotate, while the lever element 12 has still taken a bit, and has then disengaged from the lever element 12 due to the movement of the lever element 12, directly caused by the pressure surface 18 of the striker 9 .
- FIG. 7 shows the intermediate position in which the latch 6 has completely cleared the way for the striker 9.
- the spring element 7 is maximally tensioned.
- FIG. 8 has the striker 9 moves further into the recess 22 and is located with its front end in the Riegelkuhle 38. Consequently, the rotary member 21 has also rotated in the arrow direction without being hindered by the lever member 12 due to the free surface 39.
- the lever element 12 has rotated back in the direction of the arrow, so that the bolt 6 with its locking tip 37 has already moved slightly into the case 8.
- the tilting element 28 has also opposite the position in FIG. 7 moved back so that the axis 24 of the lever member 12 has moved upwards.
- the spring element 7 is already somewhat relaxed.
- FIG. 9 is the striker 9 in its locked position and the latch 6 in the closed position.
- the door 4 is located at the predetermined by the door seal, not shown stop.
- the actuator 10 has moved further and the rotational movement of the rotary member 21 is completed.
- the bolt 6 presses with its contact surface having a locking tip 37 against the closing surface 17 of the striker 9 and is held in this position by the force of the spring element 7.
- the closing force of the bolt 6 can be adjusted by appropriate dimensioning of the spring element 7.
- the latch 6 has taken its locking position and keeps the door 4 closed.
- the spring force is with the door sealing force on the spring cable 16, the lever member 12 with latch 6 and the striker 9 in equilibrium.
- FIG. 11 is the latch 6 in its unlocked position.
- the locking tip 37 is completely out of the case 8 of the striker 9, being triggered by the pressure of the striker 9 on the locking tip 37 of the bolt 6 by the tilting bearing of the lever member 12 and the axis 24 of the lever member 12 is slightly about the axis 25 of the rotary member 21 has moved.
- the spring element 7 is opposite to the position in FIG FIG. 6 not more tense.
- FIG. 12 represents, wherein the representation in FIG. 12 the representation in FIG. 6 is similar, with the difference, however, that the directions of rotation of both the lever member 12 and the rotary member 21 are reversed.
- the striker 9 is further moved back from the recess 22 and the actuator 20 has occupied the released space due to the force acting on the rotary member 21 of the torsion spring 31.
- the rotational movement of the lever member 12 is effected by the relaxation of the spring element 7.
- FIG. 13 again shows the locking position according to the FIG. 9 , Here, the rotary member 21 and the lever member 12 are shown not cut and in addition to the outside of Door lock housing 2 arranged solenoid 11 is shown.
- the armature 34 moves with the closing movements of the lever member 12 with. It is activated only when, as described above, the user pushes against the door 4, thereby squeezing the gasket slightly more and generating a signal that triggers the actuation of the lifting magnet 11, or the machine control triggers drying support.
- FIG. 16 Finally, the position of the striker 9, the lever member 12 and the tilting member 22 in the same position as FIG. 15 from the opposite side.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
Erfindungsgemäß wird zum Verriegeln der Tür ausgehend von der Offenstellung der Riegel unter Spannung des Federelements in die Verriegelungsstellung gebracht, in der eine auf den Riegel wirkende Schließkraft durch das Federelement bestimmt wird, und zum Entriegeln der Tür der Riegel durch eine nicht vom Federelement aufgebrachte Betätigungskraft aus der Verriegelungsstellung in eine Entriegelungsstellung gebracht und nach dem Wegbewegen des Schließbügels aus der Verriegelungsposition der Riegel mittels der Kraft des Federelements in die Offenstellung bewegt. Die Erfindung ermöglicht, mit einem Türschloss sowohl die Öffnung durch Hand als auch automatisch zu realisieren, wobei der Schlossmechanismus unverändert bleiben kann und lediglich durch ein zusätzliches Wirkelement, beispielsweise in Form eines Hubmagneten, eine Anpassung erfolgen kann. Dieser Aufbau kann auf die gerätebedingten Vorgaben angepasst werden, so dass dieses Verriegelungs- und Entriegelungsprinzip bei allen Haushaltsgeräten, insbesondere Spülmaschinen, realisiert werden kann. Es erspart zusätzliche Motoren zum Öffnen und stellt eine vorteilhafte Alternative zu bestehenden Türschlössern für derartige Haushaltsgeräte dar.According to the invention for locking the door, starting from the open position, the bolt is brought under tension of the spring element in the locking position in which a force acting on the latch closing force is determined by the spring element, and for unlocking the door of the bolt by a non-applied by the spring element actuating force the locking position brought into an unlocked position and moves after moving away the striker from the locking position of the latch by means of the force of the spring element in the open position. The invention makes it possible to realize with a door lock both the opening by hand and automatically, the lock mechanism can remain unchanged and can only be done by an additional active element, for example in the form of a solenoid, an adjustment. This structure can be adapted to the device-related requirements, so that this locking and unlocking principle in all household appliances, especially dishwashers, can be realized. It saves additional motors to open and represents an advantageous alternative to existing door locks for such household appliances.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Betätigen eines Türschlosses mit einem Schlossmechanismus in einem Türschlossgehäuse für eine Tür eines elektrischen Haushaltsgeräts, vorzugsweise Spülmaschine, bei dem ein Riegel mittels eines Federelements zum Verriegeln von einer Offenstellung in eine Verriegelungsstellung bewegt wird, wobei in der Offenstellung die Tür geöffnet und der Riegel mit einer Falle eines an dem Haushaltsgerät angeordneten Schließbügels außer Eingriff ist und in der Verriegelungsstellung die Tür geschlossen, der Schließbügel in einer Verriegelungsposition in dem Türschlossgehäuse sich befindet und der Riegel mit der Falle in Eingriff ist. Die Erfindung betrifft außerdem ein Türschloss für ein elektrisches Haushaltsgerät mit einem in der Tür des Haushaltsgeräts anordenbaren Türschlossgehäuse mit einer Öffnung für einen an dem Haushaltsgerät befestigbaren Schließbügel, einem in dem Türschlossgehäuse angeordneten Riegel zum Eingriff in eine Falle in dem Schließbügel in einer Verriegelungsstellung, in der der Schließbügel sich in einer Verriegelungsposition befindet, wobei der Riegel eine Anlagefläche aufweist und mit einem um eine Achse drehbar gelagerten Hebelelement verbunden ist, und einem Federelement, zwischen dem Hebelelement und einem Widerlager angeordnet ist.The present invention relates to a method for actuating a door lock with a lock mechanism in a door lock housing for a door of a household electrical appliance, preferably dishwasher, in which a latch is moved by means of a spring element for locking from an open position to a locking position, wherein in the open position, the door opened and the latch with a case of a household appliance arranged striker is disengaged and closed in the locked position the door, the striker is in a locking position in the door lock housing and the latch is engaged with the latch. The invention also relates to a door lock for a household electrical appliance with an attachable in the door of the household appliance door lock housing with an opening for a fastened to the appliance striker, arranged in the door lock housing latch for engaging in a case in the striker in a locking position, in the the striker is in a locking position, wherein the latch has a contact surface and is connected to a rotatably mounted about an axis lever member, and a spring element between the lever member and an abutment is arranged.
Bei elektrischen Haushaltsgeräten in der Art eines Geschirrspülers kann das Türschloss sowohl in die Tür als auch in das Gehäuse des Geräts eingebaut werden. An dem jeweils anderen dieser beider Teile befindet sich ein Schließbügel, der beim Schließen der Tür in das Schloss eingeführt wird und dort einhakt. Die vorliegende Erfindung bezieht sich auf die Fälle, bei denen das Türschloss in der Tür angeordnet wird.For household appliances such as dishwashers, the door lock can be installed both in the door and in the housing of the appliance. At the other of these two parts is a striker, which is introduced when closing the door in the lock and hooks there. The present invention relates to the cases where the door lock is placed in the door.
Die Fronten der Haushaltsgeräte können in altbewährter Weise einen Griff zum Öffnen der Tür aufweisen oder bei grifflosen Fronten durch entsprechende Stellmechanismen geöffnet werden, die entweder automatisch durch die Maschine oder durch den Bediener ausgelöst werden. Bei den bisher eingesetzten Türschlössern wird üblicherweise die Schließfeder beim Öffnen der Tür gespannt, um damit die Schließkraft für den geschlossenen Zustand aufzubauen. Aus der
Nachteilig ist, dass die Feder zum Schließen durch Bediener beim Öffnen vorgespannt werden muss. Dadurch ist ein automatisches Öffnen der Tür, insbesondere bei grifflosen Türen, nur mittels zusätzlicher aufwändiger Einrichtungen, beispielsweise einem Motor möglich. Dieser wird benötigt, um die Tür zu öffnen und die Feder vorzuspannen. Da üblicherweise ein Motor zu aufwändig ist, sind derartige Schließsysteme auf den Griff zum Öffnen der Tür angewiesen. Insbesondere bei Spülmaschinen sind die Hersteller aufgrund von Vorschriften aufgefordert, eine automatische Öffnung der Tür nach dem Spülen zur Unterstützung des Trockenvorgangs zu ermöglichen. Dieses automatische Öffnen kann dann auch bei grifflosen Türen genutzt werden.The disadvantage is that the spring must be biased to close by operators when opening. As a result, an automatic opening of the door, especially in handle-less doors, only by means of additional complex equipment, such as a motor possible. This is needed to open the door and to bias the spring. Since usually a motor is too expensive, such locking systems rely on the handle to open the door. In particular, in dishwashers, manufacturers are required by regulations to allow automatic door opening after rinsing to assist in the drying process. This automatic opening can then be used even with handle-less doors.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde eine Möglichkeit für die Betätigung eines Türschlosses bzw. ein Türschloss für Haushaltsgeräte, insbesondere für Spülmaschinen, vorzuschlagen, bei der der Schlossmechanismus derart funktionell ausgestaltet ist, dass er sowohl manuell als auch automatisch entriegelt (geöffnet) werden kann und ein entsprechend ausgestaltetes Türschloss leicht anpassbar bei Türen mit oder ohne Griff einsetzbar ist.The present invention is therefore the object of proposing a way for the operation of a door lock or a door lock for household appliances, especially for dishwashers, in which the lock mechanism is designed to be functional so that it can be unlocked both manually and automatically (opened) and a correspondingly designed door lock is easily adaptable to doors with or without handle can be used.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren zur Betätigung eines Türschlosses mit den Merkmalen des Anspruchs 1 sowie durch ein Türschloss mit den Merkmalen des Anspruchs 6 gelöst. Weitere vorteilhafte Ausgestaltungen sind den jeweiligen rückbezogenen Unteransprüchen zu entnehmen.This object is achieved by a method for actuating a door lock with the features of
Danach ist in der Offenstellung das Federelement bezüglich der aufzubringenden Schließkraft entspannt und zum Verriegeln der Tür wird ausgehend von der Offenstellung der Riegel unter Spannung des Federelements in die Verriegelungsstellung gebracht. In dieser Stellung wirkt auf den Riegel eine Schließkraft die durch das Federelement bestimmt wird. Zum Entriegeln der Tür wird der Riegel durch eine nicht vom Federelement aufgebrachte Betätigungskraft aus der Verriegelungsstellung in eine Entriegelungsstellung gebracht und nach dem Wegbewegen des Schließbügels aus der Verriegelungsposition der Riegeln mittels der Kraft des Federelements in die Offenstellung bewegt. Beim Entriegeln der Tür kann die aufgebrachte Betätigungskraft durch Muskelkraft manuell, beispielsweise durch Ziehen an der Tür oder durch ein Wirkelement maschinell aufgebracht werden. Abhängig von der Art der Betätigung während der Öffnung können die dabei eingenommenen Verriegelungsstellungen voneinander abweichen. Die Bewegung des Riegels aus der Verriegelungsstellung in die Offenstellung kann, je nach Art der Betätigung, durch eine einzige oder durch mehrere Bewegungen realisiert werden.Thereafter, in the open position, the spring element is relaxed with respect to the applied closing force and locking the door is brought starting from the open position of the bolt under tension of the spring element in the locking position. In this position acts on the bolt a closing force which is determined by the spring element. To unlock the door of the latch is brought by a non-spring force applied by the actuating element from the locking position in an unlocked position and moves after moving away the striker from the locking position of the bolts by means of the force of the spring element in the open position. When unlocking the door, the applied operating force can be applied by muscle force manually, for example, by pulling on the door or by an active element by machine. Depending on the type of operation during the opening, the locking positions taken thereby may differ from each other. The movement of the bolt from the locking position to the open position can, depending on the type the actuation, be realized by a single or by several movements.
Gemäß einer bevorzugten Ausführung des Verfahrens wird zum Verriegeln der Tür und damit zum Bewegen des Riegels aus der Offenstellung ein an der Verriegelungsposition des Schließbügels befindlicher Aktuator des Schlossmechanismus gegen den Schließbügel gedrückt, so dass der Schließbügel durch Wegbewegen, d.h. Wegdrücken des Aktuators in die Verriegelungsposition gelangt. Während dieser Aktion wird zuerst mittels des Schließbügels das Federelement über den Aktuator gespannt und dabei der Riegel aus der Offenstellung in eine Zwischenstellung bewegt und anschließend das Federelement teilweise entspannt und dabei der Riegel unter Aufrechterhaltung einer verbleibenden, die Schließkraft bildenden Restspannung des Federelements, aus der Zwischenstellung in die Verriegelungsstellung bewegt. Aufgrund der eingangs beschriebenen Ausgestaltung bzw. Anordnung des Türschlossgehäuses wird bei dem Schließen die Tür bewegt, so dass durch die Bewegung des Türschlossgehäuses der Schließbügel in das Türschlossgehäuse gelangt. Der Riegel bewegt sich somit aus der Offenstellung zuerst in eine Zwischenstellung in der der Riegel noch nicht in Eingriff mit dem Schließbügel ist, und anschließend aus der Zwischenstellung in die Verriegelungsstellung. Das zu Beginn hinsichtlich der Schließkraft entspannte Federelement ist in der Zwischenstellung vollständig gespannt und in der Verriegelungsstellung teilweise gespannt und erhält damit eine einstellbare Schließkraft, mit der der Riegel in der Falle des Schließbügels auf den Schließbügel drückt, aufrecht.According to a preferred embodiment of the method, to lock the door and thereby move the latch from the open position, an actuator of the lock mechanism located at the lock position of the striker is pressed against the striker so that the striker is moved by moving away, i. Pushing away the actuator reaches the locking position. During this action, the spring element is first stretched over the actuator by means of the striker and thereby moves the latch from the open position to an intermediate position and then partially relaxes the spring element while the bolt while maintaining a remaining, the closing force forming residual stress of the spring element, from the intermediate position moved to the locked position. Due to the above-described embodiment or arrangement of the door lock housing, the door is moved during the closing, so that passes through the movement of the door lock housing of the striker in the door lock housing. The bolt thus moves from the open position first into an intermediate position in which the bolt is not yet in engagement with the striker, and then from the intermediate position into the locking position. The initially relaxed with respect to the closing force spring element is fully cocked in the intermediate position and partially stretched in the locking position and thus receives an adjustable closing force with which the latch presses in the case of the striker on the striker, upright.
Zum Entriegeln von Hand durch Ziehen an der Tür wird vorzugsweise der Riegel durch eine relative Bewegung des Schließbügels zu dem Riegel gegen die Schließkraft des Federelements aus der Verriegelungsstellung in eine erste Entriegelungsstellung bewegt. Zum automatischen Entriegeln wird zweckmäßigerweise der Riegel in eine zweite Entriegelungsstellung bewegt, wobei die Betätigungskraft durch ein elektrisches Wirkelement aufgebracht wird. Die Entriegelungsstellungen bei den verschiedenen Arten der Öffnung sind somit unterschiedlich. Wie vorstehend bereits ausgeführt, wird der Riegel durch die Federkraft des Federelements wieder in die Offenstellung gebracht, unabhängig davon, in welcher Entriegelungsstellung der Riegel sich befindet.To unlock by hand by pulling on the door preferably the bolt is moved by a relative movement of the striker to the bolt against the closing force of the spring element from the locking position to a first unlocked position. For automatic unlocking of the bolt is conveniently moved to a second unlocked position, wherein the actuating force is applied by an electrical active element. The unlocking positions in the different types of opening are thus different. As already stated above, the bolt by the spring force of Spring element brought back into the open position, regardless of which unlocking the bolt is located.
Gemäß einer weiteren Ausbildung des Verfahrens wird beim oder nach dem Verlassen der Verriegelungsposition durch den Schließbügel der Aktuator wieder in seine Ausgangsposition bewegt. Diese Bewegung kann durch Unterstützung des Federelements über das Hebelelement und der Eigenkraft des Aktuators oder allein durch die Eigenkraft des Aktuators bewirkt werden.According to a further embodiment of the method, the actuator is moved back into its starting position during or after leaving the locking position by the striker. This movement can be effected by supporting the spring element via the lever element and the inherent force of the actuator or solely by the force of the actuator.
Das erfindungsgemäße Türschloss zeichnet sich dadurch aus, dass in der Offenstellung, in der die Tür unverriegelt ist, das Federelement bezüglich einer aufzubringenden Schließkraft entspannt ist und das Hebelelement den Riegel in einem Schließbügelbereich hält, der in der Verriegelungsposition von dem Schließbügel eingenommen wird. Der Riegel befindet sich somit im Wesentlichen in einem Bereich, den er auch in der Verriegelungsposition, in der er in der Falle in dem Schließbügel angeordnet ist, einnimmt. Um in die Verriegelungsposition zu gelangen, muss somit der Riegel zuerst aus diesem Schließbügelbereich herausbewegt werden. Das Federelement selbst kann auch in der Offenstellung vorgespannt sein, jedoch hat diese Vorspannung lediglich Auswirkung auf die einzustellenden Wirkkräfte des Federelements als solche, nicht jedoch auf Betätigung im Zusammenhang mit der Verriegelung.The door lock according to the invention is characterized in that in the open position in which the door is unlocked, the spring element is relaxed with respect to an applied clamping force and the lever member holds the latch in a striker area, which is taken in the locking position of the striker. The bolt is thus located substantially in a region which it occupies even in the locking position in which it is arranged in the latch in the striker. In order to get into the locking position, thus the bolt must first be moved out of this striker area. The spring element itself may also be biased in the open position, but this bias has only effect on the active forces of the spring element to be adjusted as such, but not on actuation in connection with the lock.
Dies erfolgt erfindungsgemäß zweckmäßigerweise durch einen Aktuator, der ein Betätigungselement und ein Drehelement, welches im Türschlossgehäuse gelagert und um eine Achse drehbar ist, umfasst, und auf den der Schließbügel beim Verriegelungsvorgang einwirkt. Das Betätigungselement liegt in der Offenstellung in einer Ausnehmung im Türschlossgehäuse und erstreckt sich dabei in den Schließbügelbereich. In der Verriegelungsstellung liegt es in einen an den Schließbügelbereich anschließenden bogenförmigen Führungsbereich der Ausnehmung im Türschlossgehäuse. Der Führungsbereich dient der Umlenkung des Betätigungselements in dem Türschlossgehäuse um ungefähr 180°. Das auf das Drehelement beim Verriegeln tangential einwirkende Betätigungselement kann beispielsweise als ein elastisches Federband ausgestaltet sein, das durch die Führung der Ausnehmung über den bogenförmigen Führungsbereich unter Spannung versetzt wird. Zu einem späteren Zeitpunkt, wenn der Riegel wieder in die Offenstellung gelangt, kann sich das Federelement entspannen und dadurch sich wieder in die Offenstellung begeben, sodass das mit dem Betätigungselement zusammenwirkende Drehelement dadurch ebenfalls wieder in seine Ausgangsposition gelangt. Das gleiche kann auch durch ein Rollenband, bestehend aus einer Vielzahl von parallelen zylindrischen Rollen realisiert werden, wobei dann an dem Drehelement eine Drehfeder anzuordnen ist, die die Rückbewegung des Aktuators, also des Drehelements und des Betätigungselements, in die Ausgangsposition bei der Offenstellung bewirkt. Die Rollen und das Federband können aus Kunststoff oder Metall ausgebildet sein. Vorteilhaft kann die magnetische Ausbildung von metallischen Rollen sein. Das Betätigungselement erstreckt sich in einen Bereich der Ausnehmung, den Schließbügelbereich, der von dem Schließbügel in seiner Verriegelungsposition eingenommen wird. Bei der Relativbewegung zwischen dem Türschlossgehäuse und dem Schließbügel drückt der Schließbügel gegen das Betätigungselement und schiebt dieses in die bogenförmige Ausnehmung in dem Türschlossgehäuse. Dadurch dreht sich das Drehelement des Aktuators um die im Türschlossgehäuse gelagerte Achse.This is done according to the invention expediently by an actuator, which comprises an actuating element and a rotary member which is mounted in the door lock housing and is rotatable about an axis, and acts on the striker during the locking operation. The actuating element lies in the open position in a recess in the door lock housing and thereby extends into the striker area. In the locking position, it lies in a subsequent to the striker area arcuate guide portion of the recess in the door lock housing. The guide area serves to deflect the actuating element in the door lock housing by approximately 180 °. The tangentially acting on the rotary member when locking actuator can be configured for example as an elastic spring band, which by the Guide the recess is placed over the arcuate guide area under tension. At a later time, when the bolt returns to the open position, the spring element can relax and thereby go back to the open position, so that the cooperating with the actuator rotary element thereby also returns to its original position. The same can also be realized by a roller belt consisting of a plurality of parallel cylindrical rollers, in which case a torsion spring is to be arranged on the rotary element, which causes the return movement of the actuator, ie the rotary member and the actuating element, into the starting position in the open position. The rollers and the spring band may be formed of plastic or metal. Advantageous may be the magnetic training of metallic rollers. The actuator extends into a region of the recess, the striker region, which is occupied by the striker in its locking position. During the relative movement between the door lock housing and the striker, the striker presses against the actuating element and pushes it into the arcuate recess in the door lock housing. As a result, the rotary element of the actuator rotates about the axis mounted in the door lock housing.
Gemäß einer bevorzugten Ausbildung der Erfindung weist das Drehelement des Aktuators und das Hebelelement am Umfang angeordnete Zähne auf, die miteinander in und außer Eingriff bringbar sind. Bei der Bewegung des Schließbügels in die Verriegelungsposition gelangen die Zähne des Drehelements des Aktuators und die Zähne des Hebelelements bei der anfänglichen Bewegung des Aktuators in Eingriff. Die Anzahl der Zähne richtet sich nach der Wegstrecke, die in das Hebelelement bewegt werden muss. Üblicherweise sind das ein bis drei Zähne, die sowohl beim Aktuator als auch beim Drehelement vorzusehen sind. Durch das Verzahnen dreht der drehbar um seine Achse gelagerte Aktuator das Hebelelement um seine davon abweichende Achse. Dabei spannt das Hebelelement das Federelement, das vorzugsweise in Form einer in axialer Richtung mit Druck beaufschlagbaren Schraubenfeder ausgebildet ist. Bei dieser Drehung des Hebelelements bewegt sich der Riegel aus der Stellung, die er in der Offenstellung des Schlosses eingenommen hatte. Bei Erreichen einer Zwischenstellung gelangen die Zähne außer Eingriff, so dass der Aktuator über seine Zähne keine Kraft mehr auf das Hebelelement aufbringen kann. Infolge dessen entspannt sich das Federelement und bewegt das Hebelelement wieder zurück, so dass der Riegel mit seiner Anlagefläche in der Falle des Schließbügels zur Anlage kommt. Da die Feder nicht vollständig entspannen kann, weil der Riegel bereits an dem Schließbügel anliegt, bleibt eine Restspannung vorhanden, die die Schließkraft bildet, mit der der Riegel den Schließbügel in seiner Verriegelungsposition hält. Durch entsprechende Ausgestaltung und Dimensionierung kann diese Schließkraft eingestellt werden.According to a preferred embodiment of the invention, the rotary element of the actuator and the lever element on the circumference arranged teeth, which are engageable with each other and disengageable. As the striker moves to the lock position, the teeth of the actuator's rotary member and the teeth of the lever member engage in the initial movement of the actuator. The number of teeth depends on the distance that has to be moved into the lever element. Usually, these are one to three teeth, which are to be provided both in the actuator and the rotary member. By gearing the rotatably mounted about its axis actuator rotates the lever member about its deviating axis. In this case, the lever element biases the spring element, which is preferably designed in the form of a compressible in the axial direction coil spring. During this rotation of the lever member, the bolt moves from the position he in the open position of the castle. When an intermediate position is reached, the teeth are disengaged, so that the actuator can no longer apply force to the lever element via its teeth. As a result, the spring element relaxes and moves the lever member back again, so that the bolt comes with its contact surface in the case of the striker to the plant. Since the spring can not fully relax because the latch already abuts against the striker, there remains a residual stress that forms the closing force with which the latch holds the striker in its latching position. By appropriate design and dimensioning this closing force can be adjusted.
Gemäß einer weiteren Ausbildung ist das Hebelelement in einem an der Achse des Drehelements im Türschlossgehäuse gelagerten Kipplager drehbar gelagert. Dadurch kann vorteilhafterweise zusätzlich durch die von dem Drehelement bewirkte Drehung des Hebelelements, das Hebelelement durch den auf den Riegel drückenden Schließbügel um die Achse des Drehelements gedreht werden, um den Riegel aus der Offenstellung in die Zwischenstellung zu bewegen. In diesem Fall wird somit der Riegel nicht allein durch die Zähne aus der Offenstellung in die Zwischenstellung bewegt, sondern zuerst durch die indirekte Einwirkung des Schließbügels über den Aktuator mit den ineinandergreifenden Zähnen und zum Schluss durch den Schließbügel direkt. Diese Ausgestaltung ermöglicht auch das Öffnen des Riegels, indem das Hebelelement unter Krafteinwirkung durch den Schließbügel sich um die Achse des Drehelements bewegt. Diese Ausgestaltung ermöglicht vorteilhafterweise auch das automatische Öffnen zweckmäßigerweise durch ein elektromagnetisches Wirkelement, das an der Achse des Hebelelements angreift. Durch diese Bewegung gelangen auch die Zähne des Drehelements des Aktuators und die Zähne des Hebelelements außer Eingriff, so dass sich der Aktuator in der vorstehend beschriebenen Art und Weise wieder in seine Ausgangsstellung in die Offenstellung bewegen kann.According to a further embodiment, the lever element is rotatably mounted in a mounted on the axis of the rotary member in the door lock housing tilting bearing. As a result, in addition, advantageously, by the rotation of the lever element caused by the rotary element, the lever element can be rotated about the axis of the rotary element by the striker pressing on the latch in order to move the latch from the open position into the intermediate position. In this case, the bolt is thus not moved by the teeth from the open position to the intermediate position, but first by the indirect action of the striker on the actuator with the intermeshing teeth and finally by the striker directly. This embodiment also allows the opening of the bolt by the lever member moves under the action of force by the striker about the axis of the rotary member. Advantageously, this embodiment also makes automatic opening possible by means of an electromagnetic active element which acts on the axis of the lever element. As a result of this movement, the teeth of the rotary element of the actuator and the teeth of the lever element are also disengaged so that the actuator can move back into its initial position into the open position in the manner described above.
Das Öffnen der Tür kann, wie bereits erwähnt, entweder manuell oder automatisch erfolgen. Bei der manuellen Öffnung durch Ziehen von Hand an der Tür wird, vorzugsweise über den Riegel durch eine relative Bewegung des Schließbügels zu dem Riegel gegen die Schließkraft des Federelements, das Hebelelement zumindest teilweise um seine Achse gedreht bis entweder der Riegel allein durch die Drehbewegung oder durch eine vom Schließbügel auf die Kipplagerung aufgebrachte Kraft aus der Falle des Schließbügels gelangt ist. Das Betätigungselement kann sich dadurch entspannen und sich in Richtung Schließbügel strecken, wobei, wie vorstehend ausgeführt, sich entweder ein Federband entspannt oder eine ein Rollenband bewegende Drehfeder sich entspannt.As already mentioned, the door can be opened either manually or automatically. In manual opening by pulling by hand on the door, preferably over the latch by a relative movement of the striker to the bolt against the closing force of the spring element, the lever member is at least partially rotated about its axis until either the bolt passes solely by the rotational movement or by a force applied by the striker to the tilting bearing force from the case of the striker. The actuator can thereby relax and stretch in the direction of the striker, wherein, as stated above, either a spring band relaxes or a roller belt moving torsion spring relaxes.
Bei der automatischen Öffnung greift ein elektromagnetisches Wirkelement, vorzugsweise ein Hubmagnet, an der Achse des Hebelelements an, so dass das Hebelelement zum Öffnen des Riegels durch die Kipplagerung aus seiner Lage beim Verriegeln unter Krafteinwirkung herausbewegbar ist. Die von dem Riegel eingenommene Entriegelungsstellung weicht von der Entriegelungsstellung bei der manuellen Öffnung ab.In the automatic opening, an electromagnetic active element, preferably a lifting magnet, engages the axis of the lever element, so that the lever element for opening the bolt can be moved out of its position during locking by force applied by the tilting bearing. The unlocking position assumed by the bolt deviates from the unlocking position during the manual opening.
Gemäß einer weiteren Ausbildung bewegt sich das Federelement, mangels einer entgegenstehenden Kraft, unabhängig davon, auf welche Art und Weise die Öffnung des Türschlosses erfolgt ist und in welcher Entriegelungsstellung sich der Riegel befindet, wieder in die Offenstellung und entspannt sich dabei, so dass die Ausgangsstellung von allen beteiligten Elementen des Türschlosses in der Offenstellung mit entspanntem Federelement erreicht wird. Dazu dreht sich das Hebelelement wieder in seine Lage bei der Offenstellung, wobei auch die Achse des Hebelelements durch die Kipplagerung wieder in die Ausgangsstellung gebracht wird.According to a further embodiment, the spring element moves, in the absence of an opposing force, regardless of the manner in which the opening of the door lock is done and in which unlocking the bolt is, back to the open position and relaxes it, so that the starting position is achieved by all involved elements of the door lock in the open position with relaxed spring element. For this purpose, the lever member rotates back to its position in the open position, wherein the axis of the lever member is brought by the tilting bearing back to the starting position.
In dem Türschlossgehäuse können Mikroschalter angeordnet sein, um die jeweilige Stellung des Riegels an eine Maschinensteuerung zu übermitteln. So kann beispielsweise ein Mikroschalter die Offenstellung und wenn Bedarf besteht, auch die Geschlossenstellung durch ein entsprechendes elektrisches Signal an die Maschinensteuerung melden. Bei einer grifflosen Tür kann beispielsweise durch ein üblicherweise dafür vorgesehener Sensor erkannt werden, wenn der Benutzer gegen die Tür drückt und damit sich die Lage des Riegels oder der Tür insgesamt geringfügig ändert. Diese Änderung löst ein entsprechendes Signal in der Maschinensteuerung aus, so dass dadurch der Hubmagnet betätigt und der Riegel aus der Falle des Schließbügels bewegt wird. Die Ausgestaltung ermöglicht es auch, durch die Maschinensteuerung zu einem bestimmten Zeitpunkt, beispielsweise zur Unterstützung des Trockenvorgangs (EcoDry), den Hubmagneten zu betätigen und das Türschloss zu entriegeln. Die Öffnung der Tür erfolgt dann üblicherweise durch die Schwerkraft der Tür, wobei zusätzlich noch eine Unterstützung durch den sich entspannenden Aktuator, der gegen den Schließbügel drückt, erfolgen kann. Auch gibt es dazu direkt in den Türscharnieren eingebaute Öffnungselemente, wie beispielsweise Druckfedern. Durch die erfindungsgemäße Ausgestaltung des Türschlosses und die Anordnung des Federelements in Verbindung mit dem Hebelelement mit einer Übersetzung steht ein relativ langer Bewegungsweg des sich bewegenden Endes des Federelements, so dass dies vorteilhafterweise dazu benutzt werden kann, die Riegelstellung und auch bei einer grifflosen Tür den Öffnungswunsch des Bedieners zu erkennen. Wie bereits erwähnt, drückt dieser dann ein- oder - zur Sicherheit - zweimal gegen die geschlossene Tür und löst damit die automatische Öffnung aus. Hierzu kann ein mit dem Ende des Federelements verbundener Geberkörper vorgesehen sein, der mit der Bewegung des Endes des Federelements über mindestens eine in einer Leiterplatte befindliche Spule zur Erzeugung eines Messsignals geführt wird.In the door lock housing microswitches may be arranged to transmit the respective position of the bolt to a machine control. Thus, for example, a microswitch the open position and if necessary, also report the closed position by a corresponding electrical signal to the machine control. In a handle-less door can be detected, for example, by a sensor usually provided for this purpose, when the user presses against the door and thus the position of the bolt or the door changes slightly overall. This change triggers a corresponding signal in the machine control out, so that thereby actuates the solenoid and the latch is moved from the case of the striker. The design also makes it possible, by the machine control at a certain time, for example, to support the drying process (EcoDry) to actuate the solenoid and unlock the door lock. The opening of the door is then usually by the gravity of the door, in addition, a support by the relaxing actuator, which presses against the striker, can take place. There are also directly in the door hinges built opening elements, such as compression springs. Due to the inventive design of the door lock and the arrangement of the spring element in conjunction with the lever element with a translation is a relatively long path of movement of the moving end of the spring element, so that this can be advantageously used to the bolt position and even with a handle-less door the opening desire recognize the operator. As already mentioned, this presses on or - for safety - twice against the closed door and thus triggers the automatic opening. For this purpose, an encoder body connected to the end of the spring element can be provided, which is guided with the movement of the end of the spring element via at least one coil located in a printed circuit board for generating a measurement signal.
Mittels dieses erfindungsgemäßen Verfahrens und des erfindungsgemäßen Türschlosses ist es somit möglich, mit einem Türschloss sowohl die Öffnung durch Hand als auch automatisch zu realisieren, wobei der Schlossmechanismus unverändert bleiben kann und lediglich durch ein zusätzliches Wirkelement, beispielsweise in Form eines Hubmagneten, eine Anpassung erfolgen kann. Dieser Aufbau kann auf die gerätebedingten Vorgaben angepasst werden, so dass dieses Verriegelungs- und Entriegelungsprinzip bei allen Haushaltsgeräten, insbesondere Spülmaschinen, realisiert werden kann. Es erspart zusätzliche Motoren zum Öffnen und stellt eine vorteilhafte Alternative zu bestehenden Türschlössern für derartige Haushaltsgeräte dar.By means of this method according to the invention and the door lock according to the invention it is thus possible to realize both the opening by hand and automatically with a door lock, wherein the lock mechanism can remain unchanged and only by an additional active element, for example in the form of a solenoid, an adjustment can be made , This structure can be adapted to the device-related requirements, so that this locking and unlocking principle in all household appliances, especially dishwashers, can be realized. It saves additional motors to open and represents an advantageous alternative to existing door locks for such household appliances.
Nachfolgend wird die Erfindung anhand von in den Abbildungen dargestellten Ausführungsbeispielen näher erläutert. Weitere Merkmale ergeben sich aus der folgenden Beschreibung der Ausführungsbeispiele der Erfindung in Verbindung mit den Ansprüchen und den beigefügten Abbildungen. Die einzelnen Merkmale der Erfindung können für sich allein oder zu mehreren bei unterschiedlichen Ausführungsformen Erfindung verwirklicht sein. Es zeigen
Figur 1- ein Teilquerschnitt durch ein erfindungsgemäßes Türschloss in der Offenstellung;
Figur 2- ein Teilquerschnitt des Türschlosses von der gegenüberliegenden Seite
von Figur 1 ; Figur 3- das Türschlossgehäuse von der Türseite (Bedienerseite) schräg unten;
Figur 4- die
Ansicht gemäß Figur 1 mit einem Teilschnitt in einer tiefer im Türschlossgehäuse liegenden Schnittebene; Figur 5- eine Teilschnittdarstellung gemäß
Figur 4 beim Schließvorgang; Figur 6- eine Teilschnittdarstellung gemäß
Figur 4 beim Schließvorgang zu einem späteren Zeitpunkt; Figur 7- eine Teilschnittdarstellung gemäß
Figur 4 beim Schließvorgang mit dem Riegel in einer Zwischenstellung; Figur 8- eine Teilschnittdarstellung gemäß
Figur 4 beim Schließvorgang, wobei der Riegel sich aus der Zwischenstellung in die Falle des Schließbügels bewegt; Figur 9- eine Teilschnittdarstellung gemäß
Figur 4 mit dem Riegel und dem Schließbügel in Verriegelungsstellung; Figur 10- eine Teilschnittdarstellung gemäß
Figur 4 beim manuellen Öffnen, wobei der Schließbügel den Riegel bereits weitgehend aus der Falle gedreht hat; Figur 11- eine Teilschnittdarstellung gemäß
Figur 4 beim manuellen Öffnen, wobei der Riegel sich in der Entriegelungsstellung befindet; Figur 12- eine Teilschnittdarstellung gemäß
Figur 4 beim manuellen Öffnen, wobei der Riegel sich auf dem Wege in die Offenstellung befindet; Figur 13- eine Teilschnittdarstellung gemäß der
Figur 1 mit dem Riegel in der Verriegelungsstellung entsprechendFigur 9 mit einem zusätzlichen Hubmagneten, der sich außerhalb des Türschlossgehäuses befindet; Figur 14- eine Teilschnittdarstellung gemäß
Figur 13 bei der der Hubmagnet den Riegel in die Entriegelungsstellung bewegt hat; Figur 15- eine Teilschnittdarstellung gemäß
Figur 13 , bei der der Schließbügel bereits in der Offenstellung sich befindet und der Riegel in der Entriegelungsstellung durch das Federelement gedreht wurde; und Figur 16- eine Teilschnittdarstellung gemäß
Figur 2 von der gegenüberliegenden Seite, bei der der Schließbügel und der Riegel sich in der Stellung gemäßFigur 15 befinden.
- FIG. 1
- a partial cross section through an inventive door lock in the open position;
- FIG. 2
- a partial cross section of the door lock from the opposite side of
FIG. 1 ; - FIG. 3
- the door lock housing from the door side (operator side) diagonally downwards;
- FIG. 4
- the view according to
FIG. 1 with a partial section in a deeper lying in the door lock housing sectional plane; - FIG. 5
- a partial sectional view according to
FIG. 4 during the closing process; - FIG. 6
- a partial sectional view according to
FIG. 4 during closing at a later time; - FIG. 7
- a partial sectional view according to
FIG. 4 during the closing process with the bolt in an intermediate position; - FIG. 8
- a partial sectional view according to
FIG. 4 during the closing process, wherein the latch moves from the intermediate position into the case of the striker; - FIG. 9
- a partial sectional view according to
FIG. 4 with the bolt and the striker in the locked position; - FIG. 10
- a partial sectional view according to
FIG. 4 when opening manually, wherein the striker has already largely turned the latch out of the case; - FIG. 11
- a partial sectional view according to
FIG. 4 when opening manually, wherein the latch is in the unlocked position; - FIG. 12
- a partial sectional view according to
FIG. 4 when opening manually, wherein the latch is on the way to the open position; - FIG. 13
- a partial sectional view according to the
FIG. 1 with the bolt in the locked position accordinglyFIG. 9 with an additional solenoid located outside the door lock housing; - FIG. 14
- a partial sectional view according to
FIG. 13 in which the solenoid has moved the latch to the unlocked position; - FIG. 15
- a partial sectional view according to
FIG. 13 in which the striker is already in the open position and the bolt has been rotated in the unlocked position by the spring element; and - FIG. 16
- a partial sectional view according to
FIG. 2 from the opposite side, in which the striker and the latch are in the position according toFIG. 15 are located.
Die Ansicht gemäß
Anhand der folgenden
In der
In
Die Folge diese Bewegung ist in
In
In
Das manuelle Öffnen per Hand durch Ziehen in einem nicht dargestellten Griff an der Tür 4 wird in den
In
Nachdem der Riegel 6 die Entriegelungsstellung erreicht hat, findet eine Umkehrung der Drehrichtung des Riegels 6 mit dem Hebelelement 12 statt, während sich das Drehelement 21 sich weiter in dieselbe Richtung dreht. Dies ist in
In den
In der
Das Ergebnis dieser Bewegungen ist in der
- 11
- TürschlossLocks
- 22
- TürschlossgehäuseDoor lock housing
- 33
- Schlossmechanismuslock mechanism
- 44
- Türdoor
- 55
- Haushaltsgeräthousehold appliance
- 66
- Riegelbars
- 77
- Federelementspring element
- 88th
- FalleCases
- 99
- Schließbügelstriker
- 1010
- Aktuatoractuator
- 1111
- Hubmagnetsolenoid
- 1212
- Hebelelementlever member
- 1313
- Widerlagerabutment
- 1414
- Umlenkungredirection
- 1515
- Federhalterpenholder
- 1616
- Federseilspring rope
- 1717
- Schließflächeclosing surface
- 1818
- Druckflächeprint area
- 1919
- Stoßflächeabutting face
- 2020
- Betätigungselementactuator
- 2121
- Drehelement, 21' EndeRotary element, 21 'end
- 2222
- Ausnehmung, 22' bogenförmiger BereichRecess, 22 'arcuate area
- 2323
- Öffnungopening
- 2424
- Drehachse HebelelementRotary axis lever element
- 2525
- Drehachse DrehelementRotary axis rotary element
- 2626
- Zähne HebelelementTeeth lever element
- 2727
- Zähne DrehelementTeeth rotating element
- 2828
- Kippelement, 28'/28"KippelementarmTilting element, 28 '/ 28 "tilting element arm
- 2929
- Stirnkante HebelelementFront edge lever element
- 3030
- Anschlagskantestop edge
- 3131
- Drehfedertorsion spring
- 3232
- Schaltungsplatinecircuit board
- 3333
- Geberkörperdonor body
- 3434
- Ankeranchor
- 3535
- Rollenroll
- 3636
- BerührungsflächeTouchpad
- 3737
- RiegelspitzeRiegelspitze
- 3838
- RiegelkuhleRiegel Kuhle
- 3939
- Freiflächeopen space
- 4040
- Aussparung in 28Recess in 28
- 4141
- SchließbügelbereichStriker area
Claims (13)
zum Verriegeln der Tür (4) ausgehend von der Offenstellung der Riegel (6) unter Spannung des Federelements (7) in die Verriegelungsstellung gebracht wird, in der eine auf den Riegel (6) wirkende Schließkraft durch das Federelement (7) bestimmt wird, und
zum Entriegeln der Tür (4) der Riegel (6) durch eine nicht vom Federelement (7) aufgebrachte Betätigungskraft aus der Verriegelungsstellung in eine Entriegelungsstellung gebracht und nach dem Wegbewegen des Schließbügels (9) aus der Verriegelungsposition der Riegel (6) mittels der Kraft des Federelements (7) in die Offenstellung bewegt wird.Method for actuating a door lock (1) with a lock mechanism (3) in a door lock housing (2) for a door (4) of a household electrical appliance (5), preferably a dishwasher, in which a latch (6) by means of a spring element (7) for Locking is moved from an open position to a locking position, wherein in the open position, the door (4) open and the latch (6) with a latch (8) of a household appliance (5) arranged striker (9) is disengaged and in the Locking position the door (4) closed, the striker (9) is in a locking position in the door lock housing (2) and the latch (6) with the latch (8) is engaged, characterized in that
for locking the door (4), starting from the open position, the bolt (6) is brought into the locking position under tension of the spring element (7), in which a closing force acting on the bolt (6) is determined by the spring element (7), and
for unlocking the door (4) of the latch (6) by a non-spring element (7) applied actuating force from the locking position in an unlocked position and after moving away the striker (9) from the locking position of the bolt (6) by means of the force of Spring element (7) is moved to the open position.
zuerst mittels des Schließbügels (9) über den Aktuator (10) das Federelement (7) gespannt und dabei der Riegel (6) aus der Offenstellung in eine Zwischenstellung bewegt wird, und
anschließend das Federelement (7) teilweise entspannt und dabei der Riegel (6) unter Aufrechterhaltung einer verbleibenden, die Schließkraft bildenden Restspannung des Federelements (7), aus der Zwischenstellung in die Verriegelungsstellung bewegt wird.A method according to claim 1, characterized in that for locking the door (4) and thus for moving the bolt (6) from the open position located at the locking position of the striker (9) actuator (10) of the lock mechanism (3) against the striker (9) is pressed and the striker (9) passes by moving the actuator (10) in the locked position, wherein during
first by means of the striker (9) via the actuator (10) the spring element (7) tensioned while the bolt (6) is moved from the open position to an intermediate position, and
then the spring element (7) partially relaxed while the bolt (6) while maintaining a remaining, the closing force forming residual stress of the spring element (7), is moved from the intermediate position into the locking position.
einem in der Tür (4) des Haushaltsgeräts (5) anordenbaren Türschlossgehäuse (2) mit einer Öffnung (23) für einen an dem Haushaltsgerät (5) befestigbaren Schließbügel (9),
einem in dem Türschlossgehäuse (2) angeordneten Riegel (6) zum Eingriff in eine Falle (8) in dem Schließbügel (9) in einer Verriegelungsstellung, in der der Schließbügel (9) sich in einer Verriegelungsposition befindet, wobei der Riegel (6) eine Anlagefläche (37) aufweist und mit einem um eine Achse (24) drehbar gelagerten Hebelelement (12) verbunden ist, und einem Federelement (7), das zwischen dem Hebelelement (12) und einem Widerlager (13) angeordnet ist,
dadurch gekennzeichnet, dass
in einer Offenstellung, in der die Tür (4) unverriegelt ist, das Federelement (7) bezüglich einer aufzubringenden Schließkraft entspannt ist, und das Hebelelement (12) den Riegel (6) in einem Schließbügelbereich (41) hält, der in der Verriegelungsposition von dem Schließbügel (9) eingenommen wird.Door lock (1) for a household electrical appliance (5), preferably dishwasher, with
one in the door (4) of the household appliance (5) can be arranged door lock housing (2) with an opening (23) for a striker (9) which can be fastened to the domestic appliance (5),
a latch (6) arranged in the door lock housing (2) for engaging a latch (8) in the striker (9) in a locking position in which the striker (9) is in a locked position, the latch (6) having a latch Bearing surface (37) and with a about an axis (24) rotatably mounted lever member (12) is connected, and a spring element (7) which is arranged between the lever element (12) and an abutment (13),
characterized in that
in an open position in which the door (4) is unlocked, the spring element (7) is relaxed with respect to a clamping force to be applied, and the lever element (12) holds the latch (6) in a striker area (41) which is in the locking position of the striker (9) is taken.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP16204036.4A EP3336292B1 (en) | 2016-12-14 | 2016-12-14 | Method for actuating a door lock and door lock |
US15/837,354 US11015371B2 (en) | 2016-12-14 | 2017-12-11 | Method for actuating a door lock, and door lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP16204036.4A EP3336292B1 (en) | 2016-12-14 | 2016-12-14 | Method for actuating a door lock and door lock |
Publications (2)
Publication Number | Publication Date |
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EP3336292A1 true EP3336292A1 (en) | 2018-06-20 |
EP3336292B1 EP3336292B1 (en) | 2020-04-08 |
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EP16204036.4A Active EP3336292B1 (en) | 2016-12-14 | 2016-12-14 | Method for actuating a door lock and door lock |
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US (1) | US11015371B2 (en) |
EP (1) | EP3336292B1 (en) |
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DE102017006649B3 (en) * | 2017-07-13 | 2018-09-27 | Emz-Hanauer Gmbh & Co. Kgaa | Door lock for a household electrical appliance |
IT201700084013A1 (en) * | 2017-07-24 | 2019-01-24 | Illinois Tool Works | DOOR-LOCK DEVICE FOR HOUSEHOLD APPLIANCES, IN PARTICULAR FOR DISHWASHER |
US11359414B2 (en) * | 2019-01-24 | 2022-06-14 | Whirlpool Corporation | Latch assembly |
US20210238888A1 (en) * | 2020-01-31 | 2021-08-05 | Bitron S.P.A. | Door-lock device and household appliance equipped with such door-lock device |
US20240335087A1 (en) * | 2023-04-06 | 2024-10-10 | Illinois Tool Works Inc. | Dishwasher latch resistant to sticking from food soils |
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US4210349A (en) * | 1978-12-26 | 1980-07-01 | Standard Keil Hardware Manufacturing Co. | Device for holding a door firmly closed |
EP0727178A2 (en) * | 1995-02-14 | 1996-08-21 | YMOS AKTIENGESELLSCHAFT Industrieprodukte | Locking assembly for the door of a dishwashing machine |
DE19540843A1 (en) * | 1995-10-30 | 1997-05-07 | Zangenstein Elektro | Fastener for door of domestic electrical device, esp. dishwasher |
DE19837248A1 (en) | 1998-07-28 | 2000-02-10 | Zangenstein Elektro | Door lock for domestic electrical apparatus, especially dish washer has closing spring tensioned in open position of door lock, this having movable gripping device joined to closing member |
Also Published As
Publication number | Publication date |
---|---|
EP3336292B1 (en) | 2020-04-08 |
US20180163433A1 (en) | 2018-06-14 |
US11015371B2 (en) | 2021-05-25 |
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