Foods and beverages: apparatus – Cooking – With stirring
Patent
1997-03-14
1998-09-01
Simone, Timothy F.
Foods and beverages: apparatus
Cooking
With stirring
99409, 99511, 177132, 177245, 366141, 366146, 366314, A47J 4304, A47J 4307, G01G 1900
Patent
active
057995672
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
The invention relates to a food processor comprising a mixing vessel and a drive mechanism for an agitator in the mixing vessel, the mixing vessel being heatable in its lower region.
A food processor of this kind is known from EP-A 0561259. There is in question here a food processor for the processing of foodstuffs, which has a weighing device with a force-absorbing element, by which weighing device there may be determined and displayed the weight of foodstuff present in a mixing vessel. In the weighing operation, the mixing vessel is carried by the force-absorbing element, which, for its part, is connected to a pedestal for the unit. Between the force-absorbing element and the mixing vessel, there are provided bearing elements displaceable vertically against the force of a biased spring. The mixing vessel, when weighing, lies loose on the bearing elements, and is lockable to the pedestal of the unit for the purpose of operation of the food processor. The force-absorbing element comprises a weighing beam secured to the pedestal for the unit, with, fixed to the weighing beam, strain gauges whose signal is evaluated and displayed by an electronic circuit.
SUMMARY OF THE INVENTION
It is the task of the present invention to provide a food processor of this type in advantageous manner.
As a result of the arrangement of the invention, there is provided an advantageous development of the subject matter of the invention. This is solved in that a weighing device is provided and that the weighing device records the weight of a mixing bowl support, including a heating unit. The food processor has a mixing bowl support which, in operation of the food processor, holds the mixing vessel frictionally. This mixing bowl support is encompassed by a heating unit, in particular by a resistance heating wire or the like, for heating of the lower region of the mixing vessel. The weighing device records, according to the invention, the weight of the mixing bowl support, including the heating unit encompassing the latter, and of the mixing vessel. To display the weight, there may be provided a digital display located in the unit housing. After switching on of the food processor, this digital display first displays a tare point. An electronic circuit is correspondingly so arranged that a weight display is only effected after depression of a corresponding button, after which zero grams is first displayed. Further weighing can now be done, wherein it is proposed, according to the invention, that weighing may take place, in one weighing step, up to 2.5 kg, and in total, up to 7.5 kg. For this purpose, it may be provided that the weight display is fitted with a reset button, in order, after filling of foodstuffs or the like into the mixing vessel, the weight display may again be set to zero. In a preferred embodiment of the subject matter of the invention, it is provided that the weighing device supports the parts to be weighed by means of a three-point bearing. The weighing device records, accordingly, the weight of the mixing bowl support, including the heating unit encompassing the latter, and that of the mixing vessel, by means of three bearing points.
It is thus proposed that the bearing points are each associated with end regions of the weighing device. For example, the weighing device may be formed in such a way that it has three arms, in whose end regions there are located the respective bearing points. In order to intercept, as far as possible any vibrations which may be caused by the agitator drive mechanism, it is further proposed that the bearing points are each fitted with a damping element. These damping elements may, for example, be rubber buffers, by means of which the subassemblies to be mounted are secured to the weighing housing. Advantageously, it is provided that the weighing device records the weight of the drive mechanism. The drive mechanism for the agitator in the mixing vessel is, in a preferred embodiment, an electric motor, which drives the mixing vessel by means of
REFERENCES:
patent: 5228381 (1993-07-01), Virgilio et al.
patent: 5535665 (1996-07-01), Wong
Farber Martin A.
Simone Timothy F.
Vorwerk & Co. Interholding GmbH
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