JPH01110333A - Cooker - Google Patents

Abstract

PURPOSE: To enable grounding and cutting corresponding to cooking and increase the safety, by providing an automatic intermittent drive circuit for controlling a motor and a switch for the automatic intermittent drive circuit for closing in accordance with the pressing force of a cover on a container. CONSTITUTION: A cover 7 is placed on a containing part 11. When pressing down the cover 7, a hanging body 8 of the cover 7 pushes down the upper end of a pressing rod 20 against the urging force of a coil spring 21 and the pressing rod 20 pushes the control part 22 of a switch 3 to turn on the switch. When the switch is turned on, an automatic intermittent drive circuit 4 is actuated to transmit the rotary movement of a motor 2 to a cutter 6 through couplings 10, 18. When the motor is switched on, the cutter is accelerated and when the motor is switched off, it is decelerated. When loosing one's hand from the cover 7, the pressing rod 20 is pushed up by the urging force of the coil spring 21 and the lower end of the pressing rod 20 is separated from the control part of the switch 3 and the control part 22 is reset and the switch is turned off.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cooking machine for processing foods such as meat and vegetables using a rotating cutter.

BACKGROUND OF THE INVENTION It has been well known to cause mixers to perform automatic intermittent operation. Automatic intermittent operation is an operation that automatically energizes the motor intermittently.By energizing the motor, the motor rotates, and by reducing or turning off the energization, the motor rotates. It is the automatic repetition of an operation that reduces or stops the

FIG. 2 shows an example of the relationship between the voltage (actual value) applied to the motor and time during intermittent operation.

In the figure, A is on time, B is off time, and A,
Both B are usually in the range of 0 to several seconds.

FIG. 3 shows an example of the relationship between time and the rotational speed of the electric motor during intermittent operation and continuous operation.

C is the relationship between the rotational speed of the motor during continuous operation and D is the relationship between the rotational speed of the motor during intermittent operation, and E is approximately the average value during D. Point F is the point at which the operation starts.

During continuous operation, although it varies depending on the load condition, after a certain period of time has elapsed, the condition becomes almost steady. During intermittent operation, the number of revolutions increases when the current is applied, and the number of revolutions decreases when the power is cut off, which varies depending on the cycles of A and B and the load conditions, but the cycle repeats, and the average number of revolutions is This is much lower than the steady state during continuous operation.

A mixer has two cutters rotatably fixed to the bottom of a container, and an electric motor rotates the cutters at high speed.The mixer is mainly used to mix solid ingredients and liquid ingredients such as water or milk together in the container. It is used to finely grind and stir ingredients to make drinks and prepare food.

The mixer rotates the cutter at high speed.

Mainly, solid materials are finely pulverized by utilizing the circulation of liquid materials.

A food processor is a cooking device similar to a blender. However, there is no example of a food processor equipped with an automatic intermittent operation function.Food processors are used for mincing vegetables, grinding meat, and grinding fish. It is mainly used for preparing dishes, such as grating daikon radish and long yam. In the case of a food processor, there is a cutter for chopping vegetables, grinding meat, cooking fish, etc.
It is separate from the cutter for grating radish and long potatoes, etc., and each cutter is used depending on the purpose, and only the cutter can be replaced within the same container.

Problems to be Solved by the Invention In food processors, different cutters must be used depending on the purpose, requiring replacement work.

When using a mixer to cook in automatic intermittent operation, if the pause time during intermittent operation is long depending on the completion of the cooking, it is easy to misunderstand that the switch is turned off when the mixer is stopped, and use the pause time during intermittent operation. A person mistakenly thought that the switch was turned off, removed the lid, put his hand or spoon into the container, and touched the cutter, causing the cutter to suddenly start rotating during the intermittent operation cycle. There is a risk of injury, but until now there has been no example of a safety mechanism that prevents the electric motor from rotating when the lid is removed from the container during automatic intermittent operation, so safety during intermittent operation is an issue. becomes.

Means for Solving the Problems The present invention was made in order to solve the above-mentioned problems of conventional cooking appliances, such as mixers and the like.

The main body of a cooking machine such as a food processor has an automatic intermittent operation circuit that controls the operation of an electric motor, a container with a built-in cutter driven by the electric motor, a lid that is placed on top of the container, and a lid that can be removed from the main body. A switching means is provided for opening and closing a switch for an automatic intermittent operation circuit that opens and closes in conjunction with the attachment and detachment of the lid to and from the container so that the electric motor does not rotate when the container is in use.

Operation In the present invention, an automatic intermittent operation circuit provided in the main body;
The container containing the electric motor, switch and cutter is
When the switch is turned on and automatic intermittent operation with a down time is performed, the material in the container is caused to move up and down, and the cutter and the material evenly contact to crush and cut the material uniformly. Further, the switching means provided in the main body turns off the switch and prevents the motor from rotating if the lid is removed during operation or if the operator attempts to operate with the lid removed.

Example An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a main body incorporating an electric motor 2, a switch 3, an automatic intermittent operation circuit 4 for controlling the electric motor 2, etc., 5 a container detachably placed on the upper part of the main body 1 and used to store and cook food, and 6 a container for cooking food. A cutter 57 for cutting and crushing the food to be cooked is the lid of the container 5 and has a pituitary gland 8.

A drive-side coupling 1 is attached to the tip of the rotating shaft 9 of the electric motor 2.
0 is fixed. The container 5 has a housing part 11° and a bearing part 1.
Consists of 3rd class. A shaft 16 is rotatably fixed to the bearing part 13, and an engaging body 17 for removably fixing the cutter 6 is formed on the upper part of the shaft 16.
A protruding part 19 is formed on the upper part of the main body 1 so as to be located on the side of the container 5. The coil spring 21 which is biased together constitutes a switching means. The pituitary gland 8 of the lid 7 is adapted to come into contact with the upper end of the push rod 20 when the container 5 is set in the main body 1 and the lid 7 is placed on the container 5. At the bottom of the push rod 20,
A switch 3 having an operating part 22 is fixed, and the switch 3 is turned on when the operating part 22 is pressed downward by the switching means 23, and turned off when the pressing force is released.

The operation of this embodiment having the above configuration will be explained.

First, normal usage conditions will be explained. The cutter 6 is set on the engaging body 17 of the shaft 16 in the container 5, cooking ingredients are put into the storage part 1, and the container s5 is placed on the main body 1. By placing the container 5 on the main body 1, the driving side coupling 10 and the driven side coupling 18 are fitted, and the rotation shaft 9 is rotated.

It is transmitted to the cutter 6 via the shaft 16. When the lid 7 is placed on the upper part of the housing part 11 and the lid 7 is pressed downward, the pituitary gland 8 of the lid 7 presses the upper end of the push rod 20 downward against the biasing force of the coil spring 21, and the push rod 20 is pressed downward. 20 is switch 3
Press the operating section 2z to turn on the switch. Turn on the switch, operate the automatic intermittent operation circuit 4, transmit the rotation of the electric motor 2 to the cutter 6 via the coupling 10.18,
The material in the container 5 is cut and cooked.

The relationship between time and the voltage applied to the motor 2 in the automatic intermittent operation circuit 4 is as shown in FIG. As shown in Figure 3.

When the electric motor 2 is operated, the cutter 6 is accelerated when the electric motor 2 is on, and decelerated when the electric motor 2 is off.

When the cutter 6 is accelerated, the material is pulverized and cut by the cutter 6 while flying up into the air.
When it is decelerated, it falls due to its own weight and is crushed and cut by the cutter 6.

By performing intermittent operation in this way, the material is cut and cooked into appropriate sizes by the cutter 6 while repeatedly moving up and down.

After cooking, when you release your hand from the lid 7, the push rod 20 is pushed up by the biasing force of the coil spring 21, and the lower end of the push rod 20 is separated from the operating section 22 of the switch 3, and the operating section 22
When the switch returns to its original state and the switch is turned off, the lid 7 is removed, the handle 14 is grasped, the container 5 is lowered from the main body 1, and the food to be cooked in the container 5 is taken out.

According to the embodiment, with the automatic intermittent operation port lIr4.

By accelerating and decelerating the rotation of the cutter 6, the material is caused to move up and down, the cutter 6 and the material evenly contact each other, the material can be evenly crushed and cut, and efficient cooking can be performed.

Also, the switch is turned on only when the lid 7 is pressed downward, and the cutter 6 rotates intermittently, and when the pressing force is released, the switch is turned off and the cutter 6 stops. By repeating the operation to release the pressure, in addition to the change in the rotation speed of the cutter 6 due to the automatic intermittent operation circuit 4, changes in the rotation speed of the cutter 6 when starting 1 and stopping due to this operation are added, and the rotation speed of the cutter 6 changes. can be varied in a variety of ways, making it possible to perform a wider range of cooking. Furthermore, since the switch is turned off when the pressure on the lid 7 is released, there is no risk of injury from touching the rotating cutter 6 during operation, which is safe. Also,
Since the above-mentioned safety is ensured without providing a sub-switch in addition to the main switch, it is possible to provide a cooking machine with a simple structure and low cost.

As described above, according to the present invention, since an automatic intermittent operation circuit is used, grinding and cutting can be performed by rotating according to the cooking process without replacing the cutter, and efficient cooking can be performed. Additionally, since a switching means is provided, if the lid is removed during operation, or if you attempt to operate with the lid removed, the electric motor will not rotate, so there is a risk of injury from touching the rotating cutter. Therefore, it is possible to provide a cooking machine with high safety.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention, FIG. 2 is a diagram showing the relationship between time and the voltage applied to the electric motor, and FIG. 3 is a diagram showing the relationship between time and the rotation speed of the electric motor. . DESCRIPTION OF SYMBOLS 1... Main body, 2... Electric motor, 3... Switch, 4... Automatic intermittent operation circuit, 5... Container,
6...Cutter. 7... Lid, 23... Switching means.

Claims (1)

[Claims] The main body (1) includes an automatic intermittent operation circuit (4), an electric motor (2) whose operation is controlled by the automatic intermittent operation circuit (4), a switch (3) for opening and closing the automatic intermittent operation circuit (4), and an electric motor ( 2), a lid (7) that is removably placed on the top of the container, and a lid that is placed on the top of the container to close the container. When placed on the main unit, press the lid downward to release the switch (3).
) is provided with a switching means (23) for turning on the cooking machine.