PREPARATION VESSEL FOR AN ELECTRIC MOTOR-OPERATED FOOD PROCESSOR

Abstract

A preparation vessel with a vessel floor, a heating device and a foot part that can be externally connected with the vessel floor, wherein the preparation vessel can be connected by way of the foot part with a base unit of an electric motor-operated food processor. In order to be able to use the preparation vessel even at high temperatures, it is proposed that a heat protection element with a temperature resistance of at least 160 C., in particular of at least 200 C., be arranged between the vessel floor and foot part, in particular between the heating device and foot part.

Claims

1: A preparation vessel (1) with a vessel floor (2), a heating device (3) and a foot part (4) that can be externally connected with the vessel floor (2), wherein the preparation vessel (1) can be connected by way of the foot part (4) with a base unit (6) of an electric motor-operated food processor (5), wherein a heat protection element (7) with a temperature resistance of at least 160 C. is arranged between the vessel floor (2) and foot part (4), in particular between the heating device (3) and foot part (4).

2: The preparation vessel (1) according to claim 1, wherein the heat protection element (7) is a silicone layer, in particular a fluorinated silicone layer.

3: The preparation vessel (1) according to claim 1, wherein the heat protection element (7) is detachably arranged on the preparation vessel (1) and/or the foot part (4).

4: The preparation vessel (1) according to claim 1, wherein the heating device (3) is arranged in the vessel floor (2) of the preparation vessel (1).

5: The preparation vessel (1) according to claim 1, wherein the heat protection element (7) covers at least a partial area of the vessel floor (2), in particular at least one partial area that would be in direct mechanical contact with the foot part (4) in the absence of the heat protection element (7).

6: The preparation vessel (1) according to claim 1, wherein the heat protection element (7) covers at least a partial area of a circumferential wall (8) of the preparation vessel (1).

7: The preparation vessel (1) according to claim 1, wherein the circumferential wall (8) has a back cut and/or a material recess so that the heat protection element (7) abuts correspondingly in terms of shape, as a kind of interference fit.

8: The preparation vessel (1) according to claim 1, wherein a sliding element (9) made out of a rigid plastic, in particular a thermoplastic or thermoset, is arranged between the heat protection element (7) and foot part (4).

9: The preparation vessel (1) according to claim 1, wherein the foot part (4) is designed for fixing an agitator (10), in particular a blade bearing (17), to the preparation vessel (1).

10: An electric motor-driven food processor (5) with a base unit (6) and a preparation vessel (1) that can be connected with the base unit (6), in particular a preparation vessel (1) according to claim 1, wherein the preparation vessel (1) has a vessel floor (2), a heating device (3) and a foot part (4) that can be externally connected with the vessel floor (2), wherein the preparation vessel (1) can be connected by way of the foot part (4) with a base device (6), wherein the preparation vessel (1) has a heat protection element (7) between the vessel floor (2) and foot part (4), in particular between the heating device (3) and foot part (4).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The invention will be described in more detail below based on exemplary embodiments. Shown on:

[0020] FIG. 1 is an electric motor-operated food processor with a base unit and a preparation vessel inserted therein,

[0021] FIG. 2 is a floor area of the preparation vessel in a sectional view according to a first embodiment,

[0022] FIG. 3 is a floor area of the preparation vessel in a sectional view according to a second embodiment.

DESCRIPTION OF THE EMBODIMENTS

[0023] The electric motor-operated food processor 5 shown on FIG. 1 has a base unit 6, in which a preparation vessel 1 is here arranged. The base unit 6 has a display 14 for displaying possible preparation functions of the food processor 5 or the like, as well as a switch 15, which is here configured as a rotary key switch. The switch 15 can be used to turn the food processor 5 on and off on the one hand, and select preparation functions and the like on the other. Also arranged on the base unit 6 are two locking cylinders 12, which serve to lock the preparation vessel 1 with a cover 11. The preparation vessel 1 shown here further has a handgrip 13 which allows a user of the food processor 5 to grip the preparation vessel 1.

[0024] FIGS. 2 and 3 show a lower partial area of the preparation vessel 1 according to two different exemplary embodiments.

[0025] In the first embodiment shown on FIG. 2, the preparation vessel 1 has a vessel floor 2, which has a central opening for accommodating an agitator 10, which extends through the opening into the interior of the preparation vessel 1. The agitator 10 here has a blade bearing 17 with a plurality of blades 16, and a shaft 18 that can rotate relative to the blade bearing 17 and is non-rotationally joined with the blades 16. The shaft 18 can be rotated by means of a drive (not depicted) of the electric motor-operated food processor 5. In particular, an electric motor is suitable for driving purposes. Apart from the vessel floor 2, the preparation vessel 1 has a circumferential wall 8.

[0026] The vessel floor 2 has a pot-like design with a circular cross section, and carries the agitator 10 centrally on the interior. In the area of the vessel floor 2, the preparation vessel 1 further has a heating device 3, which is designed as an electrical resistance heater. In order to electrically contact the latter, contact elements (not shown in any greater detail) protruding vertically downward beyond the vessel floor are provided. With the preparation vessel 1 inserted into the base unit 6, these supply power to the heating device 3, and further preferably also control the latter.

[0027] In the exemplary embodiment shown, the agitator 10 can be secured to the preparation vessel 1. To this end, for example, the blade bearing 17 has radially outwardly extending latching projections (not depicted), which can engage into corresponding cavities in the vessel floor 2. These latching projections further grip over the plane of the vessel floor 2, so as to interact with a counter-latching means designed as a foot part 4.

[0028] The foot part 4 serving as a counter-latching means is a pot-like receiving part made out of a rigid plastic material, which likewise has an opening for the agitator 10 to pass through. The foot part 4 has counter-latching means for fixing the agitator 10, so that the agitator 10 can be secured to the vessel floor 2 by rotating the foot part 4 relative to the latter.

[0029] In the area of the heating device 3, a heat protection element 7 is arranged between the vessel floor 2 or a portion of the circumferential wall 8 and the foot part 4. The heat protection element 7 is here a flexible silicone element, which owing to its flexibility adheres to the circumferential wall 8 or vessel floor 2 in a kind of interference fit. The heat protection element 7 can be detached from the preparation vessel 1, and can thus be detached from the vessel floor 2 after removing the foot part 4. The heat protection element 7 is fluorinated so as to achieve a better sliding capacity relative to the material of the vessel floor 2 and circumferential wall 8, here metal.

[0030] Further arranged in the transitional area between the vessel floor 2 or circumferential wall 8 and the foot part 4 is a sliding element 9, which is here annularly arranged between the heat protection element 7 and foot part 4 adjacent to the agitator 10 on the one hand, and in the area of the outwardly protruding circumferential wall 8 of the preparation vessel 1 on the other. As a consequence, the sliding element 9 here consists of two parts, in the form of two annular elements. For example, the sliding element 9 is here a thermoplastic, such as polyethylene or polycarbonate, which ensures an optimal sliding capacity of the foot part 4 relative to the heat protection element 7. The sliding element 9 and heat protection element 7 do not protrude beyond the foot part 4. The foot part 4 is thus essentially only insulated in relation to the vessel floor 2 heated by means of the heating device 3 at locations that are predominantly exposed to the heat and could otherwise potentially melt, i.e., without the heat protection element 7.

[0031] For example, the heat protection element 7 here has a temperature resistance of 200 C., and forms a barrier for the thermal energy emanating from the heating device 3 or the vessel floor 2 and the circumferential wall 8. At a temperature of the heating device 3 of 160, for example, the heat protection element 7 shields the foot part 4 in such a way that only a temperature that causes no significant change in material and/or shape in the foot part 4 is transmitted. For example, this temperature can lie in a temperature range of 100 C.

[0032] FIG. 3 shows an embodiment that deviates from that on FIG. 2, in which the heat protection element 7 protrudes over the foot part 4, and covers additional partial areas of the preparation vessel 1 along the circumferential wall 8 of the preparation vessel 1. In this embodiment, the heat protection element 7 serves not only as a thermal barrier, but also as an acoustic insulation, e.g., for noises caused by the agitator 10. Here as well, the heat protection element 7 is stretched over the circumferential wall 8 due to its flexibility, so that it abuts against the circumferential wall 8 in a kind of interference fit. In addition, back cuts and/or recesses (not depicted) can be provided on the circumferential wall 8, into which partial areas of the heat protection element 7 can be pressed. This enables an optimal hold of the heat protection element 7 on the preparation vessel 1.

[0033] In the two aforementioned embodiments, it is possible for a user of the food processor 5 to remove the heat protection element 7 and also the sliding element 9 from the preparation vessel 1. Alternatively, however, the heat protection element 7 and/or the sliding element 9 together with the preparation vessel 1 can be relayed to cleaning, e.g., in a dishwasher. It is here recommended in particular that the heat protection element 7 and potentially also the sliding element 9 have openings, through which any liquid that might have penetrated between the vessel floor 2 or circumferential wall 8 and the heat protection element 7 or sliding element 9 can be removed.

[0034] Depending on the configuration, in particular shape and dimensions, of the sliding element 9, the latter can also be designed as a support element for the heat protection element 7. This makes sense in particular in cases where the heat protection element 7 has a low Shore hardness. This makes it easier to assemble or disassemble the heat protection element 7 to or from the preparation vessel 1.

REFERENCE LIST

[0035] 1 Preparation vessel [0036] 2 Vessel floor [0037] 3 Heating device [0038] 4 Foot part [0039] 5 Food processor [0040] 6 Base unit [0041] 7 Heat protection element [0042] 8 Circumferential wall [0043] 9 Sliding element [0044] 10 Agitator [0045] 11 Cover [0046] 12 Locking cylinders [0047] 13 Handgrip [0048] 14 Display [0049] 15 Switch [0050] 16 Blade [0051] 17 Blade bearing [0052] 18 Shaft