CN111386374A - Device for closing and opening a hatch door, in particular for a hatch door of a household appliance such as a washing machine or the like - Google Patents

Abstract

A closing and opening device (1000) for doors and/or hatches and/or similar components of household appliances, in particular of washing machines, dishwashers and similar household appliances, said device comprising a closing and opening assembly (100), the closing and opening assembly (100) comprising a closing and opening element (110), the closing and opening element (110) being adapted to be alternately engaged with and disengaged from a feedback latch (200), said feedback latch (200) being adapted to be rigidly fixed to said hatch, wherein said closing and opening element (110) is switchable between a first position and a second position by rotation about a first rotation axis (A), wherein the mutual engagement caused by the thrust exerted by said feedback latch (200) on said closing and opening element (110) causes a first switching of said closing and opening element (110) by rotation from said first position to said second position, wherein the closing and opening assembly (100) comprises a locking lever (112), the locking lever (112) being switchable by rotation about a second axis of rotation (B), and wherein switching of the closing and opening element (110) from the first position to the second position by rotation causes the locking lever (112) to rotate between a first position and a second position, in the second position the locking lever (112) engaging the closing and opening element (110) and locking the closing and opening element (110) in the second closed position.

Description

Device for closing and opening hatches, especially for homes such as washing machines electrical door

technical field of invention

The present invention belongs to the field of household appliances, such as washing machines, dishwashers and/or similar household appliances. In particular, the present invention relates to a closing and opening device, in particular for hatches, doors, etc. of, for example, household appliances of the aforementioned type. In detail, the present invention relates to a device of the aforementioned type adapted to allow a hatch to be opened and/or opened automatically in an emergency, for example but not only, whether or not there is electrical feedback of a closed hatch, but also regardless of whether the cleaning cycle has ended or not. Furthermore, the invention relates to a closing and opening system comprising a closing and opening device of the aforementioned type, and also to a household appliance (eg a washing machine or similar household appliance) equipped with a device and/or system of the aforementioned type.

Background technique

The most common closing and opening devices and/or systems for household appliances (eg, for example, washing machines and/or similar household appliances) basically include the actual closing (and opening) components (usually applied to the body of the household appliance) , and a feedback element (latch or hook) that is usually fastened to the door of the household appliance itself. According to a more common embodiment, the closing and opening assembly further comprises a closing element adapted by rotation to switch between the first open position and the second closed position (and vice versa), wherein in the closed position the closing element engages the compartment The corresponding feedback element of the door, thus ensuring the closing of the hatch itself, whereas in the open position, on the contrary, it allows the feedback element to disengage and thus the hatch to open.

In the known automatic switching devices and/or systems, the switching of the closing and opening elements occurs automatically under the push of the latch or hook, thus as a result of the push force exerted by the user on the hatch. This type of system also provides feedback solutions and/or means for verifying that the hatch is actually closed, as well as a locking system that locks the hatch in the closed position.

Although Figures 1 to 3 relate to a device and/or system according to one embodiment of the invention, operation with devices of known type (in particular manufactured and sold by the Applicant) is described below with reference to Figures 1 to 3 The method of operation of the closing and opening device is consistent with the method.

Reference numeral 1000 in Figures 1 to 3 denotes a closure system comprising a closure assembly 100 (as expected, adapted to be applied to the body of an appliance) and a feedback element 200 (typically fastened to the door of the appliance itself) latch or hook). The closure assembly also includes a closing and opening element (element for closing and opening) 110 (also called a closing cam) (see description below), a locking and control lever (a lever for locking and controlling) adapted to be switched by rotation ) ( 112 ), release spring 113 , safety spring 114 , solenoid 115 , switching slider 116 , switching lever 117 , opening lever 118 , safety slider 120 , and opening spring 124 .

Additionally, the assembly 100 includes a locking slide 121 , a safety slide 122 and an actuator 123 .

The closing and opening element 110 is rotatable about a first axis of rotation A defined by a rotating pin 125 on which the helical portion of the release spring 113 engages, wherein the lever 112 is rotatable about a second axis of rotation B defined by the rotating pin 126 , the opposite ends of the swivel pins 126 are each received in respective seats 127 defined by the safety slides 120 .

Furthermore, an engagement and locking pin 128 extending in a direction of extension opposite to that of the rotary pin 125 protrudes from the cam 110 , wherein on the free end of the lever 112 opposite the rotary pin 127 a shaped element is obtained, which profiled element comprises The first protrusion 131 and the second protrusion 132, each of which has a semi-circular configuration, whereby the convex surface of the protrusion 131 faces the free end of the rod 112 and the convex surface of the protrusion generally faces the engagement pin 128.

With the door open, the safety slider 122 is urged against the element or cam 110 (from left to right in FIG. 1 ) by a compression spring positioned opposite the cam 110 by pushing the slider 122 end works. Furthermore, in the position in FIG. 1 , the safety slider 122 locks the cam 110 , thus avoiding a possible switching operation due to rotation, and also locks the actuator 123 , thereby also avoiding a possible switching operation of the actuator 123 . operate. With regard to the actuator 123, it is worth noting that it is also responsible for the alternating activation and deactivation of the electric modules, wherein when the electric modules are activated, the electric modules generate the electric permission required to operate the household appliance, and conversely, when the electric modules are activated When deactivated, the electrical module rejects the aforementioned electrical permission and the household appliance may not be activated and/or operated.

During closing of the hatch (not depicted for clarity), the progressive approach of the hatch to the main body of the appliance (equipped with the device 100 ) first causes the safety slider 122 (the inclined end surface of the slider 122 ) and the latch Or hook 200 engages ( FIG. 2 b ), which then results in translation of safety slider 122 away from element 110 and in release of element 110 .

Thus, retraction of the slider 122 under the urging of the hook 200 causes both the slider 122 and the cam 110 to be released, wherein rotation of the cam 110 through the shaped profile of the cam 110 results in translation of the locking slider 121 (relative to FIG. 2b, from right to left), and in this case the translation of the locking slide 121 also opposes the elastic resistance of a compression spring positioned to push the end of the slide 121 opposite the cam 110 kick in. Furthermore, the retraction of the slider 121 due to the slider 121 itself causes the actuator 123 to switch by rotational translation (at which point the actuator 123 is no longer locked or restricted by the safety slider 122), wherein the switching actuation as described The result of the controller 123 is that the electrical module is enabled, and thus the electrical module generates the electrical permissions required for operating the household appliance.

Furthermore, the ends of the latch hooks 200 engage the prongs of the element 110, wherein the mutual progressive engagement of the latches 200 in the prongs of the element 110 causes the elements 110 to pass counterclockwise (relative to the drawing) Rotate to switch from the open position of FIGS. 1 and 2A (where the hook can come out of the fork of element 112 ) to the intermediate position of FIGS. 2B to 2D , and then to the closed position of FIGS. 2E to 2F , in this closed position, the hook may not come out of the fork of the element 112 . Furthermore, when the element 110 reaches the closed position, the element 110 is locked in the closed position by the lever 112 according to the following method.

Rotation of element 110 from the open position to the closed position and the resulting loading of spring 113 causes lever 112 to engage pin 128, with the lower portion of protrusion 131 being engaged by pin 128, and thereby wherein lever 112 rotates in a counter-clockwise direction ( The free end of the rod 112 opposite the rotation pin 126 is raised relative to the starting position, FIG. 2D ), thereby compressing the safety spring 114 . Rotation of the element 110 continues and results in further loading of the spring 113, the protrusion 131 disengages from the pin 128, whereby due to the elastic reaction force of the spring 114 the lever 112 rotates in the opposite direction (clockwise with respect to the drawing) , and wherein likewise the element 110 also rotates rearwardly (towards the open position) due to the action of the spring 113, furthermore, when the engagement pin 128 engages the convex surface of the protrusion 131, the above-mentioned opposite rotation of both the lever 112 and the cam 110 ceases, The cam 110 is thus locked in the closed position. Indeed, any further rotation of the cam 110 towards the open position, and subsequent release of the hook 100 from the fork of the element 110, can only be achieved by pre-release of the lever 112 from the pin 128, the mutual release of the lever 112 and the pin 128 according to The following method to achieve.

From the closed position in FIG. 2F , with reference to FIGS. 3A and 3B below, it is evident how further rotation of the cam 110 in the clockwise direction, and thus further compression of the spring 113 first causes the pin 128 to be in the convex surface of the protrusion 131 slip, and then cause pin 128 to slip out of boss 132 . At this point, the cam 110 is again free to rotate in the counterclockwise direction due to the elastic reaction force of the spring 113, wherein during the rotation of the cam 110 in the counterclockwise direction, the pin 128 engages all parts of the protrusion 131 due to the configuration of the protrusion 132. The ramped surface 133 , as depicted, the protrusion 132 has a variable thickness, and thus defines the ramped surface 133 , whereby rotation of the cam 110 in a counterclockwise direction causes the pin 128 to exert a thrust on the rod 112 . Thus, the lever rotates away from the cam 110 about the third axis of rotation C, and then the lever 112 and the cam 110 are released from each other, under the urging of the spring 113, the cam 110 can be rotated again in the counter-clockwise direction until the open position is reached again, and then the hook 200 is automatically released from the fork of cam 110, so the hatch opens automatically.

Although it can be understood from various perspectives (simplicity of construction and operation, good reliability, affordable manufacturing and/or installation costs, all considerations), known types of closure devices and/or systems (even Closure devices and/or systems according to the latest state of the art) all have certain disadvantages which can be solved by the present invention.

The first disadvantage relates to the fact that, according to the method described above, the door being opened by means of a push on the door itself can only be achieved by the user who is in any case outside the household appliance, where, on the contrary, when the child is trapped In the rare but not impossible case among household appliances, any thrust (and thus outward thrust) exerted by a child on the hatch, in addition to further engaging the cam 110 and lever 112 in the locked position, There will be no other effect.

Another disadvantage or unsatisfactory factor relates to the fact that opening the door according to the method outlined above necessarily requires intervention by the user, who is in any case required to perform a pushing action on the door itself; the actual Above, the electrical components in known types of devices are only adapted to "allow" the opening of the hatch, which remains closed in any case without the necessary intervention of the user. Clearly, for example in the case of washing machines, and also in the case of dishwashers, the wash cycle can be done without a user and/or operator, where the extended closing of the door after the wash cycle is complete hinders or in In any case the drying of the laundry is delayed and can lead to the occurrence of odors in the laundry itself. Furthermore, the closed door condition does not allow to "see" if the wash cycle is actually complete, with the risk of opening the door without completing the wash. It is therefore evident that it would be very advantageous to have a solution that allows the door to open, which also allows the door to be opened by pushing the door itself from inside the appliance, and/or allows the door to be opened during the wash cycle Spontaneous and automatic opening of the hatch upon completion.

Therefore, the main purpose of the present invention is to overcome or at least minimize the disadvantages briefly described above and which affect closing devices and/or systems according to the prior art.

In particular, a first object of the present invention is to provide a closing and opening device that also allows the hatch door to be opened by pushing the hatch door itself from the inside of the household appliance.

Another object of the present invention is to provide a solution that allows the hatch to be opened spontaneously and automatically, for example when the washing cycle is completed or in any case by a program that can be set by the user.

Finally, the closing and opening device and/or system according to the invention is characterized by the dimensions and volumes contained, and according to the same simple method, and with the same affordable cost, it can also be applied to household appliances of known types , and also does not require substantial modification of the household appliance.

Description of the invention

The present invention is based on the general consideration according to which the above-mentioned preset objectives can be achieved and, in particular, the functional and reliability requirements can be addressed in compliance with safety regulations by means of a device that provides a locking lever which Not only is it possible to rotate about one or more axes of rotation, but also to translate along a predetermined translational direction, wherein translation of the locking lever in at least one translational direction results in mutual release of the locking lever and the opening and closing element or cam.

Based on the above considerations, and also taking into account the problems and/or disadvantages affecting closing and opening devices and/or systems according to the prior art, an object of the present invention according to a first embodiment is a closing and opening device for Doors and/or hatches and/or similar parts of household appliances, such as in particular washing machines, dishwashers and similar household appliances, said device comprising a closing and opening assembly comprising a closing and opening element, which closes and the opening element are adapted to alternately engage and disengage a feedback latch adapted to be rigidly secured to the hatch, wherein the closing and opening element is rotatable in a first position by rotation about a first axis of rotation. switching between a position and a second position wherein the mutual engagement caused by the thrust of the feedback latch against the closing and opening elements causes the closing and opening elements to rotate from the first position to the first switching of a second position, wherein the closing and opening assembly includes a locking lever adapted to be switched by rotation about a second axis of rotation, and wherein the closing and opening element is rotated from the Switching of the first position to the second position causes the locking lever to rotate between a first position and a second position where the locking lever engages the closing and opening element and closes the closing and opening elements. The opening element is locked in the second closed position; wherein the locking lever is further adapted to be toggled by translation, and wherein the closing and opening elements are engaged by the locking lever and locked in the second position In this case, rotation of the closing and opening element towards the first position causes the locking lever to translate in a first translational direction and causes the closing and opening element and the locking lever to disengage from each other, thereby causing all The closing and opening elements are switchable by rotation until the first position is reached.

According to one embodiment, translation of the locking lever in the first translational direction results in a rotation of the locking lever about a third axis of rotation different from the first and second axes of rotation both.

According to one embodiment, the locking lever includes a switching protrusion, wherein the closing and opening assembly includes a fixed switching member, and wherein translation of the locking lever in the first translation direction causes the protrusion and all The fixed switching members progressively engage each other, thereby causing the locking lever to rotate about the third axis of rotation and thereby causing the closing and opening element and the locking lever to disengage from each other.

According to one embodiment, the protrusion of the locking lever comprises an inclined and ramped engagement surface, wherein the protrusion and the fixed fixed due to translation of the locking lever in the first translation direction Progressive engagement of the switching member results in progressive rotation of the locking lever about the third axis of rotation.

According to one embodiment, the device comprises a second rotatable switching member, and rotation of the second switching member in a first rotational direction causes the second rotatable switching member and the locking lever to engage with each other, and Therein, during rotation of the second switching member in the first rotational direction, the locking lever is dragged into rotation about the third rotational axis and thus released from the closing and opening element.

According to one embodiment, the second switching member is rotatable about a fourth axis of rotation, the fourth axis of rotation being substantially parallel to the third axis of rotation.

According to one embodiment, the second rotatable switching member comprises a torsion spring comprising a helical portion and two substantially linear portions extending respectively from opposite ends of the helical portion, wherein the compression spring Rotation in the first rotational direction causes one of the substantially linear portions of the spring to exert a thrust force on the locking lever and thus causes the locking lever to rotate about the third axis of rotation.

According to one embodiment, the device comprises a switch lever adapted to rotate about a fifth axis of rotation, the fifth axis of rotation being substantially parallel to the fourth axis of rotation, wherein the rotation of the switch lever in the second direction of rotation Rotation causes the second switch member to rotate in the first rotational direction, the second rotational direction of the switch lever being opposite to the first rotational direction of the second rotational member.

According to one embodiment, the device comprises a translatable switching slide, wherein translation of the switching slide in a first self-translational direction results in a rotation of the switching lever in the second rotational direction and thus results in The second switching member rotates in the first rotational direction.

According to one embodiment, the device comprises electrical means for switching by translating the switching slide.

According to one embodiment, the electrical component comprises a solenoid.

The object of the invention is also a closing and opening system for household appliances, in particular doors and/or hatches and/or similar components such as washing machines, dishwashers and similar household appliances, said system comprising suitable With a feedback latch or hook rigidly fixed to the hatch, the system includes a closing and opening device according to one of the embodiments briefly described above.

Finally, the object of the present invention is a household appliance such as, for example, a washing machine comprising at least one hatch, said household appliance comprising a device according to one of the embodiments briefly described above and a feedback element rigidly fixed to said hatch .

Further possible embodiments of the invention are defined in the claims.

Brief Description of Drawings

The invention is further elucidated below with reference to the following detailed description of possible embodiments depicted in the accompanying drawings, wherein corresponding or equivalent features and/or components of the invention are designated by the same reference numerals. It should be noted, however, that the present invention is in no way limited to the embodiments described below and depicted in the accompanying drawings; on the contrary, it will be clear and apparent to those skilled in the art that the All those variations and/or improvements of the depicted embodiments fall within the scope of the present invention.

In the attached image:

- Figures 1 and 2A show perspective views of a device and a closing and opening system according to an embodiment of the invention;

- Figures 2B to 2F show perspective views of a device and system according to an embodiment of the invention during respective closing steps;

- Figures 3A to 3D show perspective views of a device and system according to an embodiment of the invention during the respective opening steps;

- Figures 4A to 4C show perspective views of a device and system according to an embodiment of the invention during the opening step and according to the innovative method;

- Figures 5A to 5D show perspective views of a device and system according to an embodiment of the invention during the opening step and according to a further innovative method.

Detailed description of the invention

The invention is particularly suitable for application in the field of household appliances, such as washing machines, dishwashers and similar household appliances, which is why the invention is described below with particular reference to its application in the field of household appliances, especially in washing machines.

In any event it is worth noting that the possible applications of the present invention are not limited to those described below. On the contrary, the present invention can be conveniently applied in all situations where reliable, simple and safe closing and opening operations in compliance with the safety regulations of the hatch are required.

The method of opening and closing the hatch by simply pushing the hatch from the outside has been explained above, so further description is omitted here for the sake of brevity. Thus, referring later to FIGS. 4A-4C , a method of opening the hatch by pushing the hatch from the inside of the household appliance (or alternatively, by pulling the hatch from the outside) is described by the method described herein. Unique features of closing and opening devices according to embodiments of the present invention are provided.

The first unique feature relates to the locking lever 112 , which, as shown, includes a protrusion 140 disposed halfway along the lever 112 between the rotating pin 126 and the free end of the lever 112 , wherein the protrusion 140 is in the direction of the pin 126 . There is a gradually decreasing thickness in the direction, reaching substantially zero thickness, thus defining an inclined push surface 141 .

The second unique feature relates to the fact that the slot 142 in which the opposite end portion of the pin 127 is received is elliptically shaped, so that the slot 142 defines a secondary axis with a length substantially equal to the diameter of the pin 127 and a length greater than that of the pin 127 The main axis of the outer diameter, the pin 127 (and thus the rod 112 ) is thus capable of translation in two opposite translation directions along a direction substantially parallel to said main axis of each of the slots 142 . Finally, a third unique feature relates to the fact that the device 100 includes a fixed toggle lock 143, for example to the cover of the device (not shown for clarity).

It is thus evident from the above that from the closed position (eg in Figure 2F), any push on the hatch from the inside or pull from the outside causes the cam 110 to rotate towards the open position (thus in a counter-clockwise direction with respect to the figure) ), wherein the rotation of the cam 110 in said counter-clockwise direction of rotation causes the pin 128 to exert a thrust on the protrusion 131 and thus the translation of the lever 112 against the resistance exerted by the safety spring 114 (from right to left with respect to the drawing) . Obviously, during the aforementioned translation of the lever 112, the ramped or inclined end 141 of the protrusion 140 encounters the fixed toggle lock 143, wherein the mutual and progressive engagement or confrontation of the protrusion 140 and the lock 143 causes the thrust to be removed is exerted on the lever 112 and thus causes the lever 112 to rotate about the axis of rotation C (this rotation is allowed by the aforementioned shape of the slot 142 ), away from the cam 110 and until the pin 128 is released from the protrusion 131 .

As the pin 128 is released from the protrusion 131 (and thus as the cam 110 is released from the lever 112 ), the cam is free to rotate towards the open position due to the elastic reaction force of the release spring 113 and until the open position is reached where the hook 200 It is possible to come out of the fork of the cam 110 so that the hatch can be opened.

In the following, with reference to Figures 5A to 5D, further unique features of the device according to the embodiment depicted in the Figures are described, and also the associated automatic release method of the hook 200 off the cam 110, and thus the hatch automatically opens.

For clarity of illustration, assume starting from the closed situation in Figure 2F, and further assume that completion of the purge cycle results in an electrical pulse to solenoid 115, which itself will retract, thereby translationally dragging switching slide 116, switching The slider 116 thus moves (translating from right to left with respect to the drawing) close to the solenoid 115 .

The end of the arm 117 of the switch lever, which is rotatable about the axis of rotation D, is accommodated in the receptacle of the slide 116, wherein the arm 117 is integral with the second arm 118 of the switch lever, and wherein the slide 116 is thus close to and Translation away from solenoid 115 results in rotation of arm 117 and arm 118, which rotate in a counter-clockwise direction and clockwise direction (relative to the drawing), respectively. Furthermore, during counter-clockwise rotation of the toggle lever (and thus resulting from translation of the slider 116 close to the solenoid 115), the free end of the arm 118 (opposite the axis of rotation D) engages the linear portion of the spring 150 and thus causes it to Rotation (opposite to the direction of rotation of the arm 18, therefore clockwise with respect to the drawing), the helical portion 151 of the spring 124 is then spring loaded. The free end of the linear portion 150 of the spring 124 is also positioned relative to the free end of the lever 112 such that the linear portion 150 of the spring 124 (during the aforementioned rotation of the linear portion 150 of the spring 124 caused by the rotation of the toggle lever) engages and rotates ( The lever 112 is dragged about the axis C), so the lever 112 is released from the cam 110 .

At this point, under the urging of the spring 113, the cam 110 is automatically switched in the open position, the hook 200 is automatically driven away from the fork of the cam 100, and thus the hatch is automatically opened.

Accordingly, it has been shown from the foregoing detailed description of the embodiments of the invention depicted in the accompanying drawings that the invention allows to obtain desirable results and overcome or at least limit the disadvantages encountered in the prior art.

In particular, the present invention provides a closing and opening device that allows the latch 200 to be released from the cam 110 and thus to open the hatch by simply pushing or pulling the hatch from inside and outside the appliance, respectively.

The device according to one embodiment of the invention also allows automatic release of the hook 200 from the cam 110, and thus automatic opening of the door, eg at the end of a wash cycle.

Finally, the closing and opening device and/or system according to the invention is characterized by the dimensions and volumes contained, and is also applicable to household appliances of the known type according to the same simple method, at the same affordable cost, and Substantial modifications to the household appliance are also not required.

While the invention has been described above by way of a detailed description of the embodiments depicted in the accompanying drawings, the invention is not limited to the embodiments described and depicted in the accompanying drawings; rather, it is clear and obvious to those skilled in the art It is intended that all variations and/or modifications of the embodiments described and depicted in the accompanying drawings fall within the scope of the present invention. For example, according to variants, the device according to the invention may implement only unique features adapted to allow opening by pushing or pulling the hatch, or only unique features adapted to allow the hatch to open automatically.

The scope of protection of the present invention is therefore defined by the claims.

Claims (13)

1. A closing and opening device (1000) for household appliances, in particular doors and/or hatches and/or similar components such as washing machines, dishwashers and similar household appliances, said device comprising closing and opening Assembly (100), said closing and opening assembly (100) comprising closing and opening elements (110) adapted to alternately engage with feedback latches (200) and correspondingly from said A feedback latch (200) is disengaged, said feedback latch (200) being adapted to be rigidly fixed to said door or hatch, wherein said closing and opening element (110) is adapted to pass around a first axis of rotation (A ) to switch between a first position and a second position, wherein the closing and opening are caused by mutual engagement caused by the thrust exerted by the feedback latch (200) on the closing and opening elements (110). The element (110) is switched from the first position to the second position by rotation, wherein the closing and opening assembly (100) includes a locking lever (112) adapted to pass around the first position. two rotation axes (B) are switched, and wherein switching of the closing and opening element (110) from the first position to the second position by rotation causes the locking lever (112) to be in the first position and a second position at which the locking lever (112) engages the closing and opening element (110) and locks the closing and opening element (110) in the second closed position; Characterized in that the locking lever (112) is also adapted to be switched by translation, and in that the closing and opening element (110) is engaged by the locking lever (112) and locked in the second position Rotation of the closing and opening element (110) towards the first position causes the locking lever (112) to translate in a first translational direction and causes the closing and opening element (110) and the locking The levers (112) are disengaged from each other so that the closing and opening elements can be switched by rotating until the first position is reached. 2. The device (100) according to claim 1, wherein translation of the locking lever (112) in the first translational direction causes the locking lever (112) to rotate about a third axis of rotation (C ) rotation, the third axis of rotation (C) is different from both the first axis of rotation (A) and the second axis of rotation (B). 3. The device (100) according to claim 2, wherein the locking lever (112) comprises a switching protrusion, the closing and opening assembly (100) comprises a fixed switching member, and in that the locking lever (112) comprises a fixed switching member (112) Translation in the first translational direction causes the protrusion and the fixed switching member to progressively engage with each other, thereby causing the locking lever (112) to rotate about the third axis of rotation (C) , and thereby cause the closing and opening element (110) and the locking lever (112) to disengage from each other. 4. The device (100) of claim 3, wherein the protrusion of the locking lever (112) includes an inclined and ramped engagement surface, and since the locking lever follows the first The progressive engagement of the protrusion and the fixed switching member caused by translation of a translational direction results in progressive rotation of the locking lever (112) about the third axis of rotation (C). 5. The device (100) according to any one of claims 1 to 4, characterized in that the device comprises a second rotatable switching member, and in that the second rotatable switching member is rotated in the first Rotation in the direction causes the second rotatable switching member and the locking lever (112) to engage with each other, and during rotation of the second switching member in the first rotational direction, the locking lever (112) 112) is dragged into rotation about said third axis of rotation (C) and thus released from said closing and opening element (110). 6. Device (100) according to claim 5, characterized in that the second switching member is rotatable about a fourth axis of rotation (D) substantially parallel to the The third axis of rotation (C). 7. The device (100) according to any one of claims 5 to 6, wherein the second rotatable switching member comprises a torsion spring comprising a helical portion and two substantially linear portion, the two substantially linear portions respectively extend from opposite ends of the helical portion, and rotation of the compression spring in the first rotational direction causes a thrust force from the substantially upper line of the spring One of the sexual parts is applied on the locking lever and thus rotates the locking lever (112) about the third axis of rotation. 8. Device (100) according to any one of claims 5 to 7, characterized in that it comprises a switch lever rotatable about a fifth axis of rotation (E), the fifth axis of rotation (E) ) is substantially parallel to the fourth axis of rotation (D); and rotation of the switch lever in the second rotational direction causes the second switch member to rotate in the first rotational direction, the switch lever The second rotational direction of the second rotational member is opposite to the first rotational direction of the second rotational member. 9. Device (100) according to the preceding claim 8, characterized in that the device comprises a translatable switching slide, and wherein translation of the switching slide in a first self-translational direction causes the switching lever Rotation in the second direction of rotation and thus causing rotation of the second switching member in the first direction of rotation. 10. The device (100) according to the preceding claim 9, characterized in that it comprises electrical means for switching by translating the switching slide. 11. The device of claim 10, wherein the electrical component comprises a solenoid. 12. A closing and opening system for household appliances, in particular doors and/or hatches and/or similar components such as washing machines, dishwashers and similar household appliances, said system comprising a system adapted to be rigidly Feedback latch (200) fixed to the door or hatch, characterized in that the system comprises a closing and opening device (100) according to any one of claims 1 to 11. 13. A household appliance such as, for example, a washing machine comprising at least one door or hatch, characterized in that it comprises a device (100) according to any one of claims 1 to 11 and is rigidly fixed to A feedback element (200) for the gate.

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