WO2024088633A1

WO2024088633A1 - Kitchen appliance

Info

Publication number: WO2024088633A1
Application number: PCT/EP2023/074606
Authority: WO
Inventors: Andreas Hartmann
Original assignee: De'longhi Braun Household Gmbh
Priority date: 2022-10-26
Filing date: 2023-09-07
Publication date: 2024-05-02
Also published as: DE102022211352A1

Abstract

The present invention relates to a kitchen appliance for processing food, comprising: a container for receiving food, wherein the container has an opening; a lid, which is detachably provided on the container and is designed to close the opening at least in part; and a fixing device, which is designed to detachably hold the lid on the opening and has a locking means, which is movably arranged on the lid and is designed to fasten the lid on the opening, wherein, when the locking means is actuated, the fixing device is designed to move, with respect to the lid, from a position not engaged with engagement means into a position engaged with engagement means and, in the event of continuing actuation, to increase a contact pressure with which the lid is pressed onto the container.

Description

Kitchen appliance

Technical area

The present invention relates to a kitchen appliance for processing food.

Technical background

In households, but also in the catering industry, various types of kitchen appliances are used to process food. Stand mixers are particularly popular; they consist of a container on a base fitted with a motor. This motor causes a blade to rotate, which is arranged inside the container. This rotation of the blade chops up and mixes the food in the container.

In order to prevent the food from splashing, a lid is placed over the opening of the container. A seal is provided between the lid and the container to prevent the food being processed in the container from splashing out. Since the processing tool can rotate at very high speeds of up to 30,000 revolutions per minute, which is associated with a correspondingly high occurrence of splashing food, it is necessary to ensure that the seal between the lid and the container is highly leak-proof.

In the prior art, this seal is achieved by a radial seal, as described for example in US 8,403,556 B2. Such a radial seal is provided on the lid. When the lid is placed on the container, the seal is compressed in the radial direction between the inside of the container wall and a circular projection on the lid, which has been inserted into the opening of the container. As a result, The radial seal prevents food from splashing out of the container, as a strong compression force is provided between the projection of the lid and the container. The seal also holds the lid firmly in place.

However, the inventors have become aware of several disadvantages.

For example, due to manufacturing tolerances in the diameter of the container, particularly in the case of a glass container, the seal must also seal when the dimensions vary in order to prevent the food from splashing. With a radial seal, this can be achieved, for example, by providing a large overlap between the seal and the container in order to achieve sufficient sealing even for the most unfavourable combination of the largest possible container diameter and the smallest possible lid. However, with nominal components or the smallest possible container, this means that the contact pressure of the seal is very high. This means that the lid sits very tightly on the container, making it unreasonably difficult to put the lid on the container because too much compression force has to be used to deform the seal. One solution to this would be to manufacture the containers with greater precision, but this would lead to increased costs.

A further disadvantage is that such a design is difficult to produce even if the container has a non-cylindrical or non-circular opening shape and in particular if corners are provided. In such a case, sealing in these corners is difficult to achieve.

Another disadvantage is that a high force is required to remove the cover, since the radial seal on the container wall, especially when liquid food has gotten into it. This makes such a lid difficult for a user to remove. However, if a user applies the necessary high force, this can cause the lid to suddenly come off once the high friction force of the lid with the container has been overcome. This will, however, cause food that is present on the underside of the lid, and which may also be provided on the seal, to splash out and dirty the area around the blender or even hit the user's clothing and body. This increases the time needed to clean the work surface and is also uncomfortable for a user.

In the prior art, there are other attempts to provide a tight seal of the lid on a container. For example, CN 109 316 094 proposes an axial seal between lid and container, which may overcome some of the above-mentioned disadvantages. On the other hand, there is a disadvantage in that there is no radial deformation of the seal when the lid is inserted, so that the necessary compression has to be applied manually by the user in an axial direction. This means that the user has to press on the lid itself until corresponding locking clips engage with the container. This requires a large force, also to overcome any unevenness of the top edge of the container and the lid. For some users, such a force may not be achievable, in particular since stand mixers are comparatively tall appliances, so that the lid is at a relatively high height above the work surface, where it is unergonomic to apply larger forces.

Another design is described in EP 3 949 814 A1. A design without a seal is proposed. This makes handling easier, but leads to to a poor seal of the lid. Therefore, such a design can only be used for situations and kitchen appliances in which solid foods are processed, but not for stand mixers in which liquid foods are also to be processed.

The solutions described in CN 109 316 094 A and EP 3 949 814 A1 both do not have the advantageous radial clamping effect of the seal and therefore require special clamps to hold the cover in place. These clamps snap into place once the cover is in the right place.

Technical task

The present invention aims to overcome or at least alleviate the aforementioned disadvantages and has a particular aim to provide a kitchen appliance in which a good seal between lid and container can be achieved in a simple manner by a user, even in view of manufacturing inaccuracies of the components of the kitchen appliance.

The invention is defined by claim 1. Preferred embodiments are defined in the dependent claims.

According to the invention, a kitchen appliance for processing food has a container for receiving food to be processed. This container has an opening through which this food can be introduced into the container.

Furthermore, a lid is provided which can be detachably provided on the opening of the container and is designed to at least partially close the opening. This lid can be provided on the container and removed from the container to allow food to be introduced or to prevent food from escaping from the container.

Furthermore, a fixing device is provided which is designed to hold the lid detachably on the opening in order to at least partially close the opening. This fixing device has a retaining means which is movably arranged on the lid and is designed to fasten the lid to the opening. In other words, the retaining means serves to selectively prevent the lid from being removed from the opening. Here, the retaining means is the part of the fixing device which ensures that the lid is fastened to the container.

The fixing device is designed to move the retaining means with respect to the lid from a position disengaged to a position in engagement with an engagement means on the container when actuated. With further actuation of the retaining means, a contact pressure with which the lid is pressed onto the container is increased. By moving the lid from a position disengaged to a position in engagement with an engagement means on the container, it is ensured that the lid is engaged with the container via the retaining means, which leads to a certain provisional fastening of the lid to the container. If, on the other hand, the retaining means is disengaged from the engagement means, the lid can be released from the container. With further actuation, the contact pressure with which the lid is pressed onto the container is increased via the engagement between the engagement means and the retaining means. This partially compresses the seal, which increases the tightness of the seal between the container and the lid.

By appropriate design, the lid can be easily placed on the container. By increasing the The tightness can be increased by increasing the contact pressure via the retaining means. It is therefore not necessary for a user to press the lid onto the container themselves by hand. Instead, the user can place the lid on the container easily and without exerting great force and then increase the force with which the lid is pressed onto the container via the retaining means. Increasing the contact pressure increases the tightness of the seal between the container and the lid. This enables a user to press the lid onto the container with great force, even if the user applies comparatively little force, which in turn increases the tightness.

The fixing device is preferably designed to move the retaining means with respect to the lid from a position out of engagement to a position in engagement with the engagement means on the container by means of a rotary movement of the fixing device with respect to the lid and, upon further actuation, to increase a contact pressure with which the lid is pressed onto the container. In other words, on the one hand the engagement between the retaining means and the engagement means can be achieved by means of a rotary movement and the contact pressure can be increased by means of a further rotary movement. Such a rotary movement to bring the retaining means and the engagement means into engagement with one another and to increase the contact pressure is easy for a user to implement.

In this connection it is preferred that a means is provided to limit the range of rotation of the fixing device. This prevents a user from inadvertently moving the fixing means too far and thus damaging the kitchen appliance.

Preferably, the retaining means comprises at least one, preferably several, pivotably mounted relative to the lid Clamps. When the retaining means is actuated to move the fixing device from a position disengaged to a position in engagement with the engagement means on the container, such clamps are pivoted so that they grip around an associated engagement means on the container. If an axial force is now exerted on the lid with respect to the container, this engagement between the clamp and the engagement means or this gripping of the engagement means by the clamp counteracts an axial removal of the lid from the container. The word "axial" here is understood to mean axial in relation to the container or its opening. Such a design is easy to implement and leads to a robust design of the kitchen appliance.

Preferably, the at least one clamp is designed to engage with the container, wherein the kitchen appliance is designed such that when the lid is attached, a rotary movement of the clamp first occurs and only after completion of the rotary movement does an axial displacement of the clamp occur. The axial displacement is preferably purely axial.

In this context, it is preferred that the at least one clamp that is already in engagement with the engagement means exerts an axial force on the associated engagement means upon further actuation of the retaining means. This axial force presses the lid onto the container. In other words, the clamp pulls the lid onto the container. This increases the tightness of the seal between the container and the lid and is also advantageous due to the ease of implementation of such a pressing action.

In this context, it is preferred that the clamp has a portion which engages with a surface of an actuating means of the fixing device. Such an engagement can, for example, consist in the section resting on this surface. When the actuating means is actuated, this engagement between the section of the clamp and the surface pivots the clamp so that it encompasses the associated engagement means and/or displaces the clamp so that it exerts an axial force on the associated engagement means. Here in particular, such a clamp can be U-shaped, with one leg of the U resting on the surface. The surface itself is shaped in such a way that it moves the leg of the U when moved by the actuating means. In this respect, the surface has projections and/or ramps or, generally speaking, is not flat. Such a design is easy to implement. The slope of the ramps can be varied so that an actuating force is achieved that is comfortable for the user. The flatter the ramp, the less actuating force has to be applied to achieve the same contact pressure of the seal.

One possible embodiment is that the surface is arranged on a radial end face of the actuating means and extends in the circumferential direction of the actuating means. In such a case, the surface would have to vary in axial height. Another intended embodiment is that the surface on which the leg of the U rests is on the outside of a cylindrical surface of the actuating means and acts radially outwards on the clamp. If this surface is not cylindrical but varies in radius, the clamp can be pivoted in this way. It is also possible to arrange the surface with which the leg engages on a differently shaped surface of the actuating means, which could, for example, have the shape of a truncated cone. Furthermore, a pre-tensioning means is preferably provided, which serves to pre-tension the retaining means in a pivoting direction out of engagement with the engagement means and/or to pre-tension the retaining means in a direction that is opposite to pressing the lid onto the container. In other words, the pre-tensioning means serves to provide a pre-tension against engagement between the engagement means and the retaining means or to counteract the lid being pressed onto the container via the retaining means. This makes it easier to release the lid, since the retaining means releases the lid from the container due to the pre-tensioning means when the fixing device is moved accordingly.

In this context, it is preferred that the biasing means comprises a spring. Such a spring can be easily implemented.

The lid preferably has an insertion opening for food, through which food can be inserted into the container closed by the lid. This facilitates the processing of food and in particular the addition of food even during operation and with a closed container. The insertion opening is designed to be so small that food splashing out is avoided/minimized. It can preferably be closed with another smaller lid (not shown). The insertion opening is preferably provided in the middle of the lid, since this is where it is least likely that food will splash out.

Preferably, an axial seal is provided which is intended for sealing between the container and the lid. Such an axial seal is provided axially between the container and the lid when the lid is placed on the container. Such an axial seal has the advantage that, as already As discussed earlier in the discussion of the state of the art, accidental splashing of food when the lid is removed is prevented or is less likely because there is no sudden decompression of the seal.

Preferably, the engagement means comprises one or more projections. Such projections can be formed relatively easily. If they are formed integrally with the container, as is preferred, they can easily be provided when manufacturing the container, which can simplify production.

The container preferably has a spout that can be closed with the lid. It has proven difficult to ensure a good seal with conventional seals, particularly in jugs that have spouts. It is therefore advantageous to have a spout, as this makes it easy to pour out food. As this can be closed, the food being processed can be prevented from splashing out through this spout.

The container is preferably made of glass. Such a container can be easily cleaned in a dishwasher.

Preferably, the kitchen appliance comprises a device for chopping and/or mixing foodstuffs, which is arranged in the container. Such kitchen appliances are of particular use in the kitchen.

The preferred kitchen appliance is a stand mixer. Stand mixers like this are particularly practical when it comes to processing food.

Short description of the drawings Figure 1 shows a kitchen appliance according to a first embodiment of the invention in a side view.

Figure 2 shows the kitchen appliance of Figure 1 in a top view.

Figure 3 shows the kitchen appliance of Figure 2 in a section along the line B-B.

Figure 4 shows detail C of Figure 3 .

Figure 5 is an exploded view of the components of the lid of the kitchen appliance.

Figure 6 is a plan view of the container of the kitchen appliance of Figure 1 .

Detailed description of the drawings

Figure 1 shows a side view of a kitchen appliance 100 according to an embodiment of the invention. A lid 20 is arranged on a container 3 of the kitchen appliance 100. The container 3 itself has the shape of a jug with a spout 25 and a handle 26. In the side view, an inclined surface 10 can also be seen which is provided on the lid 20 and will be discussed in more detail below. This surface 10 is in engagement with a clamp 4.

Figure 2 shows a top view of the kitchen appliance 100 according to the invention. The lid 20, which has a substantially circular cross-section, has an insertion opening 24 in the middle. Food can be inserted into the container 3 through this insertion opening 24 even when the lid 20 is placed on the container 3. It is possible to insert a measuring cup into the insertion opening 24, which can then close this insertion opening 24. The lid 20 has, as can also be seen with regard to Figure 3, two components placed on top of one another, namely an actuating means 2 which is placed on a lid base 1 and can be rotated with respect to the lid base 1. To facilitate the rotation, a handle 27 is provided on the actuating means 2 and is formed in one piece with it. This handle 27, which in the present case has the shape of a hexagon with rounded corners and dented long sides, is provided such that it surrounds the insertion opening 24 so that the insertion opening 24 extends axially through the handle 27. The dents 27' of the handle 27 serve to allow a user's fingers to penetrate them in order to make it easier for the user to rotate the actuating means 2 with respect to the lid base 1.

A pin 9 extends axially upwards from the lid base 1 and projects into a circular recess 8. The circular recess 8 is formed with the center of the lid 20 as the center, so that the circular arc that the recess 8 describes extends as a circular section whose center coincides with the center of the lid base 1 or the actuating means 2. The actuating means 2 is arranged so that it can pivot about this center with respect to the lid base 1. The penetration of the pin 9 into the recess 8 limits the angle by which the actuating means 2 can pivot with respect to the lid base 1.

The arrangement of the cover base 1 and the actuating means 2 relative to one another can be seen in more detail in Figure 3. As can be seen from this figure, the cover base 1 has a ring section 1' and a tube section 1''. The ring section 1' is formed in one piece with the tube section 1''. The tube section 1'' defines the insertion opening 24 which extends along the tube portion 1''. From the ring portion 1' the pin 9 extends axially upwards.

The actuating means 2 is placed on the lid base 1. The actuating means 2 also has an actuating means ring section 2' and an actuating means tube section 2' '. The actuating means tube section 2' ' surrounds the tube section 1' ' of the lid base 1, while the actuating means ring section 2' rests on the ring section 1' of the lid base 1. At the upper end of the tube section 1' ' of the lid base 1, an annular projection 1' ' ' is provided, which holds the actuating means 2 on the lid base 1.

From Figure 3, also in section C, the area which serves to hold the lid 20 on the container 3 can be seen. This section is shown in detail in Figure 4.

As can be seen in Figure 4, a clamp 4 is provided. This has a section 22 which engages with a surface 10 of the actuating means 2 and rests on this. The clamp 4 is U-shaped, with one leg of the U forming this section 22. The opposite section 22' of the U is designed such that it can engage with a projection 14 provided on the container 3 as an example of an engagement means and in particular can encompass this projection 14. The leg 22 and the opposite section 22' are connected via a middle section 22'' which connects them and in which the U connects the two legs of the U. To stiffen the clamp 4, a rib 35 is provided which extends between the sections 22, 22' and the middle section 22''. If the actuating means 2 is now pivoted with respect to the lid base 1, the section 22 comes to the inclined section 10' of the surface 10, which has the shape of a plane that is inclined. The section 10' extends in the circumferential direction of the actuating means 2, wherein the axial height of the section 10' changes along the circumference. This exerts a torque on the clamp 4. The clamp 4 is in turn pivotably mounted via a pin 7, wherein this pin 7 is arranged in an elongated hole 12, which in turn is provided on the lid base 1. The elongated hole 12 is provided on a tab 12', which in turn is formed integrally with the lid base 1 and extends radially from the lid base 1. At the same time, a spring 5 is provided as an example of a return element. This spring has a first leg 11 and a second leg 11', which are connected to one another via a helical spring section 11''. The helical spring section 11'' is arranged around the pin 7. While the first leg 11 of the spring is clamped in a recess 13 on the lid base 1 and is thus held there without any degrees of freedom, the second leg 11' rests against the middle section 22'' of the clamp 4. The spring is arranged in such a way that it presses the section 22 of the clamp 4 against the surface 10, while at the same time it preloads the second section 22' out of engagement with the projection 14. Through the interaction with the elongated hole 12 in which the pin 7 is mounted and the clamping of the spring leg 11 in the recess 13, which ensures that the spring leg 11 also functions as a bending spring and exerts a force acting in the direction of the underside of the container on the entire spring 5, the clamp 4 as a whole is also preloaded axially downwards away from the opening of the container 3 and thus towards the underside of the container 3. By aligning the slot 12, the clamp 4 can be axially displaced relative to the cover 20. Even if a leg spring was used for the spring 5 in this case, other Types of springs such as leaf springs or elastomer moldings can also be used. The leg spring shown here is designed in such a way that the moment generated by the preload of the legs relative to one another is weaker than the force generated by the bending of the leg 11, in such a way that when used, the rotary movement of the clamp occurs first (since the resistance of the spring is lower here) and the axial displacement only occurs after the rotary movement has been completed.

In Figure 4 it can also be seen that a ring section 1' is provided on the underside of the lid base 1. An axial seal 6 is provided radially outside this ring section 1'. In the present case, this is provided between the container 3 and the lid base 1.

Figure 5 shows an exploded view of the components of the lid 20. As can be clearly seen here, the clamp 4 has an opening 30 in the middle section 22'' through which the pin 7 extends when the kitchen appliance is assembled. Furthermore, the elongated holes 12 provided on the lid base 1 are clearly visible. The longitudinal direction of these elongated holes 12 extends along the axial direction of the lid base 1, but could also be arranged at an angle to it in order to additionally achieve a displacement component in the radial direction.

Figure 6 shows a top view of the container 3. As can be clearly seen here, projections 14 are provided at diametrically opposite points, which are provided in one piece with the material of the container 3 and which extend essentially radially outwards. Alternatively, these projections 14 could also be provided on a separate component connected to the container. A tool opening 3' is provided on the underside of the container, through which, for example, Crushing tools may extend as examples of processing tools that can be driven via a motorized base, not shown.

The function of the kitchen appliance 100 according to the present invention will now be explained with reference to Figure 4 and Figure 1. When the actuating means 2 is rotated with respect to the lid base 1, the section 22 moves on the surface 10. Since this surface 10 is inclined (see Figure 1), the clamp 4 as a whole is pivoted with respect to the pin 7. Due to the action of the spring 5, the second section 22' initially comes into a position in which it grips the projection 14 on the container 3. When the actuating means 2 is rotated further with respect to the container base 1, the clamp 4 is now moved axially upwards, i.e. away from the bottom of the container 3. As a result, the second section 22' first comes into contact with the projection 14 and is then pulled against it. As a result, an axial force is exerted on the lid 20, which presses the lid 20 against the container 3. As a result, the axial seal 6 is compressed, which leads to increased tightness. A rotation of the actuating means 2 in the opposite direction initially leads to a reduction in the contact pressure of the lid 20 against the container 3 and then to a disengagement of the second section 22' with respect to the projections 14 on the container 3, so that the lid 20 can then be released from the container 3 with comparatively little force. Thus, an engagement between the lid and the container can be achieved by a single rotary movement and the engagement force can be increased, while a rotary movement in the opposite direction leads to a release of the lid from the container.

It should be noted that in the present case two clamps 4 and two projections 14 are provided. However, their number is not limiting. By designing the inclined portion 10' of the surface 10, and in particular the offset height and the offset angle, the compression force in the axial direction can be defined and the torque that must be applied by a user can also be adjusted. While a low torque is advantageous for comparatively weak users, this has the disadvantage that the lid can be loosened or fastened with a comparatively low torque, which may not be intended, since the lid can be loosened or fastened unintentionally and a larger rotation of the handle 27 is also necessary. The length of the recess 12 allows the angle of rotation of the actuating means 2 to be defined and adjusted to the length of the inclined portion 10'. These parameters allow an actuating force and angle that is comfortable for a user to be set. Due to the axial seal 6, a larger diameter and shape tolerance can be accepted when manufacturing the upper end of the container without negatively affecting handling or sealing behavior, as discussed above. It is only necessary to ensure that there is a good overlap between the brackets 4 and the projections 14. Such an inclined section 10' is provided for each bracket 4.

The present invention has various advantages over the prior art. It is less sensitive to manufacturing inaccuracies of the individual components. Deviations in diameter and deviations from the target shape of the container 3 have little or no effect on the sealing behavior, since only a sufficiently flat upper surface of the container 3 is required, which can be sealed by the axial seal 6, which is, however, easier to achieve in terms of manufacturing than maintaining the target shape of the inner contour. This facilitates production. It can also such a design can be used for complex or irregular cross-sections of the container 3, in particular with sharp edges, which are not suitable for a radial seal. Also, only little force is required for opening and closing the lid, in contrast to a radial seal which requires a significant force. Also, a user does not have to press the axial seal manually by directly pressing the lid 20 onto the container, since the compression of the axial seal 6 is achieved by the axial movement due to the clamps 4. The user only has to turn the handle 27, which then causes the clamps 4 to generate a pressing force. Accordingly, the forces required by a user are low.

Closing the container is also intuitive since it is essentially the same movement that is required to open a screw cap. For example, the device can be designed such that turning the actuating means 2 clockwise with respect to the lid base 1 results in the lid 20 being attached to the container 3, while turning it in the opposite direction releases the lid 20 from the container 3. This makes it easy for a user to learn how to handle the kitchen appliance 100. The state of the lid 20 with respect to the container 3 can also be easily checked by checking the position of the pin 9 in the recess 8. It would also be possible for the user to orientate themselves on other components of the lid and thus recognize solely from the relative arrangement of the components to one another whether the kitchen appliance has firmly attached the lid 20 or has only placed it loosely on. Furthermore, the probability of splashing of foodstuffs adhering to the lid 20 after processing of foodstuffs is reduced, since no great force is required to lift the lid 20 from the container 3, thus avoiding sudden movements and sudden "relaxation" of the seal. On the contrary, the lid 20 can be removed from the Container 3 can be removed in a smooth and careful movement requiring little force, making it less likely that food will be splashed. Also, in the prior art, the clamps are only movable in one direction or about an axis, which requires the user to establish the required position himself, e.g. by pressing on the lid, whereas here the clamps 4 can perform a rotary movement to engage and disengage from the engagement means 14 and a translational movement to compress the seal.

Claims

Expectations

1. Kitchen appliance (100) for processing food, comprising: a container (3) for holding food, the container (3) having an opening, a lid (20) which is detachably provided on the container (3) and is designed to at least partially close the opening, and a fixing device which is designed to detachably hold the lid (20) on the opening and has a retaining means which is movably arranged on the lid (20) and is designed to fasten the lid (20) to the opening, the fixing device being designed to move the retaining means with respect to the lid (20) from a position disengaged to a position in engagement with an engagement means (14) on the container (3) when actuated, and to increase a contact pressure with which the lid (20) is pressed onto the container (3) when actuated further.

2. Kitchen appliance according to claim 1, wherein the fixing device is designed to move the retaining means with respect to the lid (20) from a position disengaged to a position in engagement with the engagement means (14) on the container (3) by a rotational movement with respect to the lid, and to increase a contact pressure with which the lid (20) is pressed onto the container (3) upon further actuation.

3. Kitchen appliance according to claim 2, further comprising a means (8,

9) to limit the range of rotation.

4. Kitchen appliance according to one of the preceding claims, wherein the retaining means comprises at least one clamp (4) pivotably mounted with respect to the lid (20), wherein an actuation of the retaining means to Fixing device from a position disengaged to a position in engagement with the engagement means (14) on the container

(3) which pivots at least one clamp (4) such that it engages around an associated engagement means (14) and, when an axial force is applied to the lid (20) with respect to the container (3), counteracts an axial removal of the lid (20).

5. Kitchen appliance (100) according to claim 4, wherein the at least one clamp (4) exerts an axial force on the associated engagement means (14) upon actuation of the retaining means in order to increase a contact pressure with which the lid (20) is pressed onto the container (3), by means of which the lid (20) is pressed onto the container (3).

6. Kitchen appliance according to claim 4 or 5, wherein the clamp

(4) has a portion (22) which engages with a surface (10) of an actuating means (2) of the fixing device and which pivots the clamp (4) upon actuation of the actuating means (2) so that it engages around the associated engagement means (14) and/or displaces the clamp (4) so that it exerts an axial force on the associated engagement means (14).

7. Kitchen appliance according to one of the preceding claims, further comprising a biasing means (5) to bias the retaining means in a pivoting direction out of engagement with the engagement means (14) and/or to bias the retaining means in a direction which is opposite to a pressing of the lid (20) onto the container (3).

8. Kitchen appliance according to claim 7, wherein the biasing means

(5) has a spring.

9. Kitchen appliance according to one of the preceding claims, wherein the lid (20) has an insertion opening (24) for Food through which food can be introduced into the container (3) closed by the lid (20).

10. Kitchen appliance according to one of the preceding claims, further comprising an axial seal (6) which is provided for sealing between the container (3) and the lid (20).

11. Kitchen appliance according to one of the preceding claims, wherein the engagement means (14) has one or more projections, which are preferably formed integrally with the container (3).

12. Kitchen appliance according to one of the preceding claims, wherein the container (3) has a spout (25) which can be closed by the lid (20) together with the opening.

13. Kitchen appliance according to one of the preceding claims, wherein the container (3) is made of glass.

14. Kitchen appliance according to one of the preceding claims, wherein the kitchen appliance further comprises a device for chopping and/or mixing foodstuffs, which is arranged in the container (3).

15. Kitchen appliance according to one of the preceding claims, wherein the kitchen appliance is a stand mixer.