JPS59186531A - Cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Fields of Use The present invention is applicable to cutting vegetables with a cutter, crushing peanuts, etc.
This relates to a cooking device that stirs liquid.

Conventional Structures and Problems Generally, this type of cooking device rotates a cutter within a container to cut or stir solids and liquids.

In particular, in the case of liquid, a certain capacity of the container is required (200 ml in the case of this product). Therefore, if the same amount of solid material and liquid is used, an overload condition will occur that exceeds the rated torque of the motor. Particularly in the case of peanuts, the overload state is not so great when they are crushed, but when they are turned into a paste, the viscosity increases and the overload state occurs. Furthermore, depending on the size of the cut, the cut object may become caught between the cutter and the inner circumferential wall of the container, and a portion of the cutter may become locked. In order to solve the above problems, it is possible to increase the torque of the electric motor,
In order to increase the torque of the electric motor, the external dimensions of the electric motor become larger. Therefore, the outer dimensions of the cooker ρ are not large, which poses a problem in terms of ease of use.

Purpose of the Invention The present invention takes into consideration the above-mentioned conventional problems, and utilizes the fact that when an abnormal overload is applied to a part of the cutter, the overcurrent flows to the motor to apply a V-force to prevent burnout of the motor. The purpose is to prevent abnormalities from occurring.

Structure of the Invention In order to achieve the above-mentioned object, the present invention comprises a main body having a built-in electric motor, a container placed on the main body, a cutter that is driven by the electric motor in the container to cut the material, an upper opening of the container, It is equipped with a container lid that covers the outer periphery, a protrusion for operating a switch at the bottom of the container lid, and a switch installed inside the main body that is operated by this protrusion.Electric power is supplied to the motor only when the container lid is pressed down. The supplied cooking device has a configuration in which a manually reset type current breaker is installed in series with the motor circuit in the vicinity of the electric motor inside the main unit, and the reset button of the current breaker is exposed outside the main unit. This is what I did.

Description of examples An embodiment of the present invention will be described below based on the drawings.

In the figure, reference numeral 1 denotes a main body with a built-in electric motor 2, and the electric motor 2 is fixed to a rib 1b of the main body 1 and a back plate 16 via two cushion rubbers 15 and a mounting plate 3. Legs 17 are fixed to the back plate 16.

A switch 13 for driving the electric motor 2 is provided on the mounting plate 3.
is attached, and the switch plate 12 is attached by the coil spring 14.
is pushed upward. The switch plate 12 is provided with a switch operation rib 12a at a position facing the switch 13.

A container 6 is placed on the top of the main body 1, and inside the container 5 there is provided a cutter stand 6 formed with two cutters 6a with a step difference.

A cylindrical container lid 4 that covers the upper opening and outer part of the container 5
The upper surface forms a transparent lid 18, and several protrusions 4a on the inner periphery and four parts 5a on the outer periphery of the upper part of the container connect the container 6 and the container lid 4.
is removably fitted. Further, an elastic body 19 such as rubber is interposed between the upper inner circumference of the container lid 4 and the lid 18, and when the container 5 is fitted to the container lid 4, the upper inner circumference and outer circumference of the container 5 are The ribs are close together and sealed.

One cutter 6 has a bearing 8 fixed to the container 5. It is detachably attached to the main shaft 7 held via an oil seal 9.

A rotation transmission joint 10 made of an elastic material such as rubber is fixed to the lower end of the main shaft 7, and the rotation transmission joint 10 is connected to the shaft 2a of the electric motor 2.
It fits into the inner circumference of the rotation transmission joint 11 fixed to the main shaft 7.
20 rotations of the electric motor are transmitted to one cutter 6 through the cutter 6. The lower end of the container lid 4 is provided with two or more projections 4b for operating a switch, and the upper surface of the main body 1 is provided with a switch hole 1a at a position opposite to the projections 4b for operating a switch. At the bottom of the switch hole 1a, a switch plate 12 is pressed against the ceiling surface of the main body by a coil spring 14 in order to close the switch hole 1a.

Next, the operation and operation of the cooking device will be explained.

First, a cutter unit 6 is fitted to the main shaft 7 inside, a container lid 4 is fitted to the container 5 containing the object to be cut, and when placed on the main body 1, the rotation transmission joint 10.11 made of an elastic body Fit slightly.

Next, a protrusion 4 for operating a switch provided at the lower end of the container lid 4
Align b with the switch hole 1a provided on the top surface of the main body 1 and press the container lid 4 downward (as shown in Fig. 1), then the switch hole 1a
The protrusion 4b for switch operation presses down the operation part 12b of the switch plate 12 through the switch plate 12 against the reaction force of the spring 14, so that the switch operation part 12a
closes the contact of the switch 13, and electric power is supplied to the electric motor 2, causing it to rotate. Rotation transmission joint 112 Rotation transmission joint 112 One cutter 6 rotates via the main shaft 7, and the object to be cut is cut and agitated by the counter 6a.

When stopping the operation, the switch board is pushed up by the coil spring 14, except for the pressure applied to the container lid 4, and the container 5 is also lifted, and the contacts of the squirrel inch open and the electric motor 2
The power is cut off and rotation stops.

The present invention incorporates a manual reset type current breaker 20 in series with the circuit of the electric motor 2 as shown in the figure, so that the contacts of the current breaker 20 are set to open in an overload state or a motor tied state. , prevents smoke and burnout of the motor.

In this case, the reason for not using a temperature sensing breaker is
1. The detection of the temperature sensing breaker is delayed due to the rise in temperature of the motor windings. 2. Once the temperature sensing breaker contact is opened, it takes time for the temperature of the motor windings to drop below the set temperature, making it difficult to use. This is because it is bad.

Also, press the manual return button 20a outside the main body 1, especially on the back plate 1.
6. In a cooker having a structure in which power is supplied to the electric motor by operating the container lid 4, which covers the cutter θa inside the container 5 by exposing it to the bottom side, the above-mentioned manual reset type current breaker 20 When the skin of the container is opened, the container lid 4 is
Since the procedure is to remove it from above and press the manual return button 20a, even if the button 20a is pressed to close the contact of the breaker 2o, the motor will not be driven because the contact of the switch 13 is open. If the button 20a is exposed on the bottom surface of the back plate 16, it is safe because it is difficult to press the container lid 4 while holding down the button 20a.

In addition, 21 is a box in which the current breaker 20 is installed, and the electric motor 2
is fixed to the housing.

Effects of the Invention As is clear from the description of the embodiments above, the cooking appliance of the present invention can prevent the motor from smoking and burning out without increasing the torque of the motor or significantly impairing ease of use. The effect is great.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a cooking device in an embodiment of the present invention;
FIG. 2 is a plan view of the main body viewed from above. 1...Body, 2...Electric motor, 6...
・-Container, 6... One cutter, 6a...
・Cutter, 20...Current breaker, 20a
...River button. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 Figure 2/e

Claims (2)

[Claims] (1) A main body with a built-in electric motor, a container placed on the main body, a cutter that is driven by the electric motor in the container to cut the material, and a container lid that covers the upper opening and outer periphery of the container;
In a cooker that is equipped with a protrusion for operating a switch provided at the bottom of the container lid and a switch provided in the main body that is operated by this protrusion, power is supplied to the electric motor only when the container lid is pressed. 1. A cooking appliance characterized in that a manual reset type current breaker is installed in series with the circuit of the electric motor in close proximity to the electric motor, and a reset button of the current breaker is exposed outside the main body. (2) The cooking appliance according to claim 1, wherein the return button of the manual return type current breaker is exposed at the bottom of the back plate of the main body.