JPS61263413A - Electromotive 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 Field of Industrial Application The present invention relates to an electric cooker mainly for cooking fruits, vegetables, etc.

Conventional technology In general, the optimal rotation speed for squeezing juice in this type of electric cooker is said to be about 500 rpm, but conventionally, the rotation of the motor is mechanically reduced using a speed reduction mechanism such as a gear belt. Because of the reduced number, a relatively large outer shell was required to accommodate the reduction mechanism.

Therefore, the inventors of the present invention have considered an electric cooker that uses an electronic control circuit to reduce the rotation speed. Taking Genisa as an example of this electric cooker, Ql, which will be explained below based on FIGS. 4 to 6 of the attached drawings, refers to the main body, motor 2. Electronic control circuit 3
A spinner 6, which is rotatable via a coupling 5 fixed to a drive shaft 4 of a motor 2, is housed in a container 7 at the top of the main body 1, which contains a spinner 6.

8 in the figure is a container lid.

As a high-speed rotation prevention mechanism for failure or malfunction of the electronic control circuit 3, an insulator 9 is installed on the drive shaft 4 protruding from the bottom of the motor 3.
A plate spring 10 having a blade portion on the back side is fixed by a plate spring 10, and a wire 11 inserted into the current-carrying circuit of the winding of the motor 2 is provided adjacent to the blade portion of the plate spring 10. There is.

This is because when the control is disrupted and the motor 2 rotates at high speed,
When an increase in centrifugal force is detected, the plate nail 1o is displaced to cut the wire 11 and cut off the current to the motor 2.

Problems to be Solved by the Invention However, in the above-described structure, when the motor makes an i-turn, the blade portion of the leaf spring receives a force that causes the leaf spring to open horizontally due to resistance caused by wind force. However, there is a problem in that it has an adverse effect on the shape of the leaf spring, which requires a high degree of dimensional accuracy.

Means for Solving the Problems Therefore, the technical means of the present invention for solving the problems described above includes a motor for rotating a cutter, a leaf spring fixed to the drive shaft of the motor, and a leaf spring fixed to the drive shaft of the motor. It has a blade part which is provided on the back side of the blade and has the shape of an arc on the circumference, and a conductor wire close to the blade part.

Effects The effects of the above technical means are as follows. That is, when the motor rotates, the leaf spring is displaced in a direction closer to the wire close to the blade.

At this time, the blade has the shape of an arc on the same circumference as the rotation locus, so the force received from the upper side in the rotation direction is minute, and it does not spread horizontally, causing the leaf spring to is able to maintain its initial shape.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 3, a motor 21 is built inside the main body 2o, and a spindle 24 is fitted onto a drive shaft 22 of the motor 21 via a coupling ring 23. A drive shaft 2 protruding from the frame 25 at the bottom of the motor 21
A plate spring 2 is fixed to 2 through an insulator 26.
It is 7. On the back side of the leaf spring 27, there is a blade portion 28 having a shape of an arc existing on the same circumference as the rotation locus.
is provided. A wire 29 that is electrically connected to the motor winding is stretched on the mounting plate 3° at a position adjacent to the blade portion 28.

Next, the operation of the configuration of the above embodiment will be explained.

When the drive shaft 22 rotates, the leaf spring 2
7, the blade part 28 is displaced in the direction approaching the wire 29, but since the blade part 28 has an arc shape, the force received from the upper side in the rotation direction is very small, so the blade part 29 is displaced in the direction approaching the wire 29. There is no deformation in the direction in which the formed bending angle 0 becomes larger.

From the above, the shape of the leaf spring 27 does not change due to aging, and it always operates accurately as a mechanism for preventing high-speed rotation.

Effects of the Invention As is clear from the description of the above embodiments, the present invention has an arcuate shape of the blade portion of the leaf spring in the high-speed rotation prevention mechanism of the electric cooker, thereby eliminating the influence of wind force during rotation. This is a mechanism that prevents the leaf spring from deforming and maintains safety so that it can continue to operate accurately for many years.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the main part of an electric cooking device showing an embodiment of the present invention, Fig. 2 is a perspective view of the surrounding area of the leaf spring, Fig. 3 is a sectional view of the same, and Fig. 4 is a conventional electric cooking device. 5 is a sectional view of the peripheral portion of the leaf spring, and FIG. 6 is a plan view thereof. 21... Motor, 22... Drive shaft, 2
7...Plate spring, 28...Blade portion, 29.
·····wire. Name of agent: Patent attorney Toshio Nakatashi and 1 other person 20-
m-body 28-m-blade 2q-11 fire Fig. 4 29-m-wire Fig. 3? ? Figure 5

Claims (1)

[Claims] a motor for rotating a cutter, a leaf spring fixed to the drive shaft of the motor, and a leaf spring provided on the back side of the leaf spring,
What is claimed is: 1. An electric cooking appliance comprising: a blade portion having a circular arc shape on a circumference; and a conductor wire inserted into a current-carrying circuit of a motor and close to the blade portion.