EP0055144A2 — Food processor

Claim 1

Independent Claim 188 words

A food processor with a processing member driven by a motor coupled to a power source comprising: a switching element (29) for connecting said motor (19) with said power source; a pulse generator (30) coupled to said power source (28) for generating count pulses (Pc) with a given period; and a food processing operation time controller (80) including a set switch (33), a first counter (35) for counting the count pulses (Pc) in response to an operation of said set switch (33) and for storing a driving time data of said motor (19), a display unit (36) for displaying an output data (Sn) of said first counter (35), a second counter (39) for storing said output data (Sn) transferred from said first counter (35) and for counting said count pulse (Pc) to produce a control signal (So) of said switching element (29) at a time point that the counting result reaches a given value, and a start switch (37) for controlling the timing of transferring the output data (Sn) of said first counter (35) to said second counter (39) and the counting operation of the second counter (39).

Claim 2

Dependent Claim 188 words

A food processor with a processing member driven by a motor coupled to a power source comprising: a switching element (29) for connecting said motor (19) with said power source; a pulse generator (30) coupled to said power source (28) for generating count pulses (Pc) with a given period; and a food processing operation time controller (80) including a set switch (33), a first counter (35) for counting the count pulses (Pc) in response to an operation of said set switch (33) and for storing a driving time data of said motor (19), a display unit (36) for displaying an output data (Sn) of said first counter (35), a second counter (39) for storing said output data (Sn) transferred from said first counter (35) and for counting said count pulse (Pc) to produce a control signal (So) of said switching element (29) at a time point that the counting result reaches a given value, and a start switch (37) for controlling the timing of transferring the output data (Sn) of said first counter (35) to said second counter (39) and the counting operation of the second counter (39).

Claim 3

Dependent Claim 23 words

A food processor according to claim 1, wherein said first counter (35) includes an up-counter and said second counter (39) includes a down-counter.

Claim 4

Dependent Claim 63 words

A food processor according to claim 1, wherein said food processing operation time controller (80) further includes means (42 to 48) which, when the contents of said first counter (35) is displayed by said display unit (36), controls a display period of the count contents representing the driving time data of said motor (19) longer than the display period of other count contents.

Claim 5

Dependent Claim 147 words

A food processor according to claim 1, wherein said pulse generator (30) includes a waveform shaper (31, 31a) for generating pulses having a frequency equal to that of said power source, and a frequency dividing circuit (32) for frequency-dividing an output signal of said waveform shaper; and said food processing operation time controller (80) includes a first AND circuit (34) which receives an output signal (Pc) of said frequency dividing circuit (32, 32a) and an output signal of said set switch (33), and applies its output signal to said first counter (35), a transfer gate (38) for transferring the output data (Sn) of said first counter (35) to said second counter in response to an operation of said start switch, and a second AND circuit (41) for providing the output signal (Pc) of said frequency dividing circuit (32, 32a) to the second counter (39) as clock pulses.

Claim 6

Dependent Claim 210 words

A food processor according claim 4, wherein said food processing operation time controller (80) further includes a reference data generator (42) for generating a driving operation time data of said motor (19), a comparator (43) which compares output data (Sn) of said first counter (35) with output data from said reference data generator (42) and produces a coincident signal (Sa), a second AND circuit (44) which receives an output signal of said first AND circuit (34) and the output signal of said comparator (43), a flip-flop circuit (45) of which output polarity is inverted every time it receives the output pulses of said second AND circuit (44), a third AND circuit (46) which receives the output signal of said first AND circuit (34) and the output signal of said comparator (43), and an OR circuit (48) which receives the output signal of said flip-flop circuit (45) and the output signal of said third AND circuit (46) to apply its output signal to said first counter (35), and a fourth AND circuit (41) which receives the output signal of said frequency dividing circuit (32, 32a) and the control signal (So) of said second counter, and applies to said second counter (39) the pulses (Pc) of said frequency dividing circuit (32, 32a).

Claim 7

Dependent Claim 193 words

A food processor with a processing member driven by a motor coupled to a power source comprising: switching means (29) for connecting said motor (19) with said power source (28); means (30: 31a, 32a) for generating a reference pulse (Pc); means (80) for controlling the operation of said switching means (29) during a driving time period of said motor (19) including, means (33 to 35), (42 to 48) for storing the driving time period in the form of digital data, and means (37 to 39: 40, 41) for counting data corresponding to the driving time period stored in said storing means (35) in response to the reference pulse (Pc) so as to produce a control signal (So) of said switching means (29); means (53 to 61) for setting a timer data on the basis of the reference pulse (Pc); means (62 to 74) for adjusting a clock data on the basis of the reference pulse; ' means (75 to 78) for displaying the timer data and the clock data; and means (52) for comparing the timer data with the clock data so as to produce a start signal of said controlling means (80).

Claim 8

Dependent Claim 193 words

A food processor with a processing member driven by a motor coupled to a power source comprising: switching means (29) for connecting said motor (19) with said power source (28); means (30: 31a, 32a) for generating a reference pulse (Pc); means (80) for controlling the operation of said switching means (29) during a driving time period of said motor (19) including, means (33 to 35), (42 to 48) for storing the driving time period in the form of digital data, and means (37 to 39: 40, 41) for counting data corresponding to the driving time period stored in said storing means (35) in response to the reference pulse (Pc) so as to produce a control signal (So) of said switching means (29); means (53 to 61) for setting a timer data on the basis of the reference pulse (Pc); means (62 to 74) for adjusting a clock data on the basis of the reference pulse; ' means (75 to 78) for displaying the timer data and the clock data; and means (52) for comparing the timer data with the clock data so as to produce a start signal of said controlling means (80).

Claim 9

Dependent Claim 101 words

A food processor according to claim 6, wherein said timer data setting means (53 to 61) includes: a timer data setting circuit (53 to 58) for setting timer data indicative of "hour" and "minute", and a timer memory section (59) for storing the data of "hour" and "minute" transferred from said timer setting circuit (57, 58); and said clock adjusting means includes a clock data adjusting circuit (62 to 67) for adjusting clock data indicative of "hour" and "minute", and a clock section (68) for counting the reference pulse so as to produce the current clock indicative of "hour" and "minute".

Claim 10

Dependent Claim 34 words

A food processor according to claim 7, wherein said clock section (70) includes means (72 to 74) for setting and storing given numerals of "0" to "12" thereby counting numbers within 1 to 12.

Claim 11

Dependent Claim 39 words

A food processor according to claim 7, wherein said timer memory section (59) includes a scale-of-13 counter (60) and a scale-of-60 counter (61), and said clock section (68) includes a presetable scale-of-13 counter (70) and a scale-of-60 counter (71).

Claim 12

Dependent Claim 77 words

A food processor according to claim 9, wherein said setting and storing means includes an initial value setting circuit (72), for setting the numeral of "0" in said scale-of-13 counter (70), a final value setting circuit (73) for setting the numeral of "12", and an additional comparator (73) for comparing the numeral of "12" with the contents of said scale-of-13 counter (71) so that the numeral of "0" can not be set in the scale-of-13 counter (71).

Food processor

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