JPS6223415Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The invention relates to a cooking machine that has a built-in electronic circuit and processes a number of ingredients by automatically controlling the rotational speed and operating time of the cutter. The present invention relates to means for preventing malfunction of the cooking machine.

Prior Art Originally, cutters for slicing carrots, radishes, etc. are best operated at a lower rotational speed than other cutters used for other purposes. In addition, the cutter used for chopping the material should be rotated at a low speed at the beginning and then gradually increased.
It can be operated in a wide range of speeds from low to high speeds. In this way, each cutter has its own suitable rotation speed. The optimum rotation speed also changes depending on the processed state of the material to be cooked. However, with conventional cooking machines, there is a risk that the cook may mistakenly attach and operate a cutter that is inconvenient for the desired dish, resulting in failure. For this reason, cooks always had to be wary of using cutters incorrectly.

Purpose of the invention The present invention was made in view of the shortcomings of the prior art as described above, and provides a cooking machine that detects the type of cutter and operates the cutter only when the intended cutter is attached. The purpose is to

Structure of the invention A transparent resin container is placed on a main body case that has a drive mechanism such as a motor, and a cutter that is rotationally driven is placed on the container, and a cutter is placed inside the main case at a position below the container. A metal sensor is provided, and the metal sensor determines the type of cutter attached, and opens and closes a drive circuit comprised of a key switch provided in the main body case and the motor.

Embodiment FIG. 1 is a schematic perspective view of a microcomputer food processor in one implementation of the present invention.

This food processor has a motor 2, large and small pulleys 3 and 4, and a drive shaft 5 housed inside a main body case 1. The drive shaft 5 has an upper end that protrudes upward from a central sleeve 7 of a transparent resin container 6 placed on the main body case 1, and a chopping cutter 9 equipped with two upper and lower ratchet blades 8, 8 on the upper end. The cutter stand 10 and the drive shaft 5 are provided so as to be rotatable at the same time. Further, the bottom of the main body case 1 is covered with a bottom plate 11, and the upper opening of the container 6 is covered with a lid 13 having a material input port 12.

On the front of the main body case 1, there is a light-emitting display section 1 that displays the rotation speed of the motor 2, elapsed operating time, etc.
4 and a key input section 15 for inputting the rotation speed and operating time to the motor 2, and inside the main body case 1, the data inputted by the key input section 15 is temporarily stored and stored as necessary. A control section 16 is arranged to output a control signal to the motor based on the data.

Further, a metal sensor 17 is attached to the back side of the main body case 1 at a position close to the bottom of the container, and the sensor 17 is connected to the control section 16.

Examples of cutters used in this food processor are shown in Figure 2 A, B, and C. cutter 1,18
A metal disk used for slicing cucumbers, etc. 1
A part of 9 is cut out in an arc shape to form an opening 20,
A blade portion 21 is attached along the opening 20.
The cutters 2 and 22 are used for chopping carrots and the like, and are the same as the chopping cutter 9 described above. The cutters 3 and 23 are cutters for kneading sauces made entirely of synthetic resin, and the back surfaces of their wing portions 24 and 24 have a metal portion that can be detected by the metal sensor 17. .

The metal sensor 17 detects the spatial distance of the metal part of the rotating cutter and emits an instantaneous pulse every time the metal part passes above the sensor 17. The time interval between these pulses is detected as the response time T. Also, the spatial distance of the metal part is determined by the metal sensor 17.
The sensitivity is related to the position of the target metal, so it is detected based on the magnitude of the current value or voltage value of the generated pulse.

The response time T has its values T1, T2, T3, T
4... are connected to the relay switches RW1, RW2, RW3, RW4... in the control section 16, and the switches corresponding to the response time T that matches the cutter are closed.

The key input unit 15 includes switches SW1, SW2, SW3, SW4, etc. for inputting the number of rotations of the cutter.
and a switch SW that calls up the cooking data stored in the memory section provided in the control section.
1', SW2', SW3', SW4'..., and both switches are relay switches in the control section 16, respectively.
It is connected in series to motor 2 via RW1, RW2, RW3, RW4... Therefore, the relay switches RW1, RW2, RW3, RW4... and both switches SW1, SW2, SW3, SW4..., SW1',
Only when SW2', SW3', SW4', . . . are closed at the same time, conduction occurs and the motor 2 is driven.

For example, assume that the cutters 2 and 22 are mounted inside the container 6 as shown in FIG. 3 or 4. In order to operate the food processor normally in this state, it is sufficient to close switch SW2 or switch SW2'. That is, the metal sensor 17 determines that the cutters 2 and 22 are attached, and the relay switches RW2 and RW2' are closed, and by closing the switches SW2 and SW2', the drive circuit to the motor 2 is switched on. This is because it is closed.
However, when the cutters 2, 22 are attached, since "I" is displayed on the light emitting display section 14, the cook can confirm again that the cutters 2, 22 are attached by looking at this display. After the cutters 2 and 22 are installed, switches SW1 and SW3, which are unrelated to the cutters 2 and 22, are accidentally switched on.
Even if you press SW1', SW3', etc., the switch will not be activated.
Relay switches RW1, RW3, RW in the circuit made by SW1, VW3, SW1', SW3'...
Since RW1', RW3', . . . are open, the circuit is not conductive and therefore the motor 2 cannot be driven.

Note that the relay switches RW2 and RW2' are arranged so that the metal sensor 17 and the cutters 2 and 2 are connected to each other.
The circuit is closed by sending information to the control section 16 in the form of an output signal with a sensitivity of T2 corresponding to the distance L2 from the second metal part.

When the switch SW2 is closed, the cutters 2, 22 are rotated at a rotation speed suitable for the cutters 2, 22.
22 is driven. Further, when the switch SW2' is closed, the cutters 2, 22 are driven according to cooking B using the cutters 2, 22.

In FIG. 5, the cutters 1 and 18 are installed inside the container 6, and as in the case of the cutters 2 and 22, the metal sensor 17 sends an output signal to the control unit 16 based on the sensitivity T1 with respect to the separation distance L1. Close relay switches RW1 and RW1' respectively. Therefore, the motor 2 is driven only when either switch SW1 or SW1' is closed.

As mentioned above, the light emitting display section 14 displays the type of cutter when the cutter is attached, but in addition to displaying the type of cutter, the light emitting display section 14 also displays the appropriate rotation speed or the like. The type of cooking method switch can be displayed to notify the cook. Also, while cooking is in progress,
You can also display the number of rotations of the cutter and the cooking time.

Effects of the invention The present invention is a cooking machine that is equipped with a plurality of types of cutters that can be installed inside a cooking container according to the types of ingredients to be cooked. The selection judgment can be automatically detected, and even if a malfunction occurs that causes the cutter to rotate inappropriately, the motor will not be driven and it is safe, eliminating the need to be careful to avoid misuse of the switch. Furthermore, failure can be prevented even if the cook attaches a cutter that is not suitable for the cooking intended by the cook.

[Brief explanation of the drawing]

The drawings relate to a food processor according to an embodiment of the present invention; Fig. 1 is an overview perspective view thereof, Fig. 2 is a, b, and b.
C is a general perspective view of multiple cutters, FIG. 3 is a vertical sectional view of the food processor with cutters attached, FIG. 4 is an enlarged sectional view of the main part of FIG. 3, and FIG. 5 is another cutter attached. A cross-sectional view corresponding to FIG. 4 at the time,
FIG. 6 is a block diagram of the operating system, and FIG. 7 is a detailed circuit diagram of FIG. 6. 9, 18, 22, 23... cutter, 6... cooking container, 17... metal sensor (metal sensing body).

Claims (1)

[Claims for Utility Model Registration] A cooking machine that is equipped with a plurality of types of cutters that can be attached to the inside of a cooking container according to the types of ingredients to be cooked, characterized by being provided with means for determining the type of cutter that is attached. Cooking machine. 2. The cooking machine according to claim 1, wherein a metal sensor capable of detecting the presence and position of metal is used as the means.