JPS61234809A - Electromotice 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 cooking machine for mainly cooking fruits, vegetables, and the like.

Conventional technology Generally speaking, the number of rotations of the cutter when squeezing juice is approximately s.
o o o r, pom, so in the past, the rotational speed of the motor was mechanically reduced, but due to the space required for the reduction device, a very large outer shell of the main body was required.

Therefore, the inventors of the present invention have considered an electric cooking machine with a structure in which the motor rotation speed is controlled by an electronic control circuit and the motor and cutter are directly connected without a speed reduction device. Due to malfunction or failure of the
The motor rotates at a very high speed (approximately IE5.OOOr, po
m), resulting in a dangerous situation. Therefore, the inventors equipped the motor drive shaft with a leaf spring that does not operate at normal rotation speeds but assumes a horizontal shape due to increased centrifugal force when rotating at high speeds, and connected the leaf spring in series with the motor windings at the tip of the leaf spring. We have been devising a mechanism to cut the connected wires and cut off the current flowing to the motor.

Hereinafter, such an electric cooking machine will be explained based on the accompanying drawings, taking a juicer as an example.

3 and 4, a motor 3 whose rotational speed is controlled by an electronic control circuit 2 is held inside the main body 1. As shown in FIGS. At the top of the main body 1, there is a container 6 in which a spinner 4 is rotatably installed.
are connected via a coupling 6. A wire 10 connected in series with the windings of the motor 3 is connected to the two protrusions 12 of the mounting plate 11 in the vicinity of the leaf spring 8 fixed to the drive shaft 7 at the lower part of the motor 3 and its blade part 9. It was stretched in the groove part 13.

Problems to be Solved by the Invention However, in the above configuration, it is difficult to tension the wire at a constant tension, and mass production is poor. There was a problem that the blade part of the blade cut the 9-year.

Means for Solving the Problems The technical means of the present invention for solving the problems described above includes a motor that rotates a cutter, a leaf spring fixed to the drive shaft of the motor, and a blade attached to the tip of the leaf spring. Two protrusions are provided in close proximity for stretching wires connected in series with the windings of the motor, and a rib higher than the protrusions is provided between the protrusions.

Effect: With this technical means, the wire can be easily stretched with a constant tension because it is stretched at two levels of height due to the ribs and protrusions.

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

1 and 2, a motor 23 whose rotational speed is controlled by an electronic control circuit 22 is held inside a main body 21. As shown in FIGS. A spinner 2 is provided on the upper part of the main body 21.
There is a container 26 in which a motor 4 is rotatably installed, and a motor 23
and the spinner 24 are connected via a coupling 26. The motor 23 is located close to the leaf spring 28 fixed to the drive shaft 27 at the lower part of the motor 23 and its blade portion 29.
A wire 30 connected in series with the winding is stretched along the grooves 33 of the two protrusions 32 of the mounting plate 31 and the grooves 36 of the ribs 34 provided higher than the grooves 33 in this order.

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

When the motor 23 rotates normally, the blade portion 29 of the leaf spring 28 is only slightly displaced and is still a distance from the position of the wire 30, and when the control of the electronic control circuit 22 is disturbed, i.e. When the motor 23 rotates at high speed, the blade portion 29 of the leaf spring 28 is largely displaced as the centrifugal force increases, and finally cuts the wire 30, cuts off the current of the motor 23, and stops the rotation. , ensure safety. At this time, if the tension of the wire 30 is low and there is some deflection,
When the distance between the blade portion 29 and the wire 3o in the initial state becomes small and the distance becomes less than a certain value, there is a malfunction in which the wire 30 is cut by the leaf spring 28 during normal rotation. However, as in this embodiment, the mounting plate 31
and the groove portion 33 of the protrusion 32.

Since there is a step between the groove 35 of the rib 34 and the wire 30, the wire 30 is stretched with a constant tension, so it does not bend, and the distance between the blade 29 of the leaf spring 28 and the wire 30 is This allows it to be kept constant and prevent malfunctions.

Effects of the Invention In the present invention, since ribs are connected to the protrusions of the mounting plate, the part where the wire is stretched has a step, making it possible to tension the wire with a constant tension, eliminating bending of the wire, and allowing the wire to be stretched during normal rotation. Malfunctions such as disconnection can be prevented. Furthermore, since a constant tension can be easily maintained, mass productivity is also improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a juicer showing an embodiment of the present invention;
FIG. 2 is an enlarged sectional view of a main part of the same juicer, FIG. 3 is an enlarged sectional view of a main part of a conventional juicer, and FIG. 4 is a sectional view of a conventional juicer. 23... Motor, 27... Drive shaft, 2
8...Plate spring, 3o...Wire, 3
1...Mounting plate, 32...Protrusion, 33.
35... Groove, 34... Rib. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3θ..., wire 3f...Kamuramura plate/θ...wire 311. 7-ta q...Blade 4Mg...Power Marin 21

Claims (1)

[Claims] A cutter provided on the inner bottom of the container, a motor that rotates the cutter, a leaf spring fixed to the drive shaft of the motor, two protrusions provided near the tip of the leaf spring, and an electric cooking machine having a rib higher than the protrusion provided between the two protrusions, and a wire connected in series with the winding of the motor stretched between the two protrusions.