JPH0451747Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to an electric cooker used for chopping ingredients such as vegetables and meat, and more specifically, to the structure of the balance weight of the cutter. be.

PRIOR TECHNOLOGY In general, cutters for electric cookers, such as chopping cutters, are composed of a rotating shaft made of resin and a blade body made of metal. It's summery.

In conventional electric cookers, a balancing weight is fixed to the rotating shaft and a centrifugal force equal to the centrifugal force generated on the blade body during rotation is applied in the opposite direction to prevent the rotating shaft from wobbling due to the imbalance described above. are doing.

Problems to be Solved by the Invention By the way, when the rotary shaft is molded, variations occur in the molding process, and this causes a slight weight imbalance in the rotary shaft itself.

However, in the above-mentioned conventional electric cooker, the position of the balance weight is determined only by the positional relationship with the blade, so it is not possible to compensate for the weight imbalance of the rotating shaft, and the amount of variation is If the size is too large, a problem arises in that a product with poor balance accuracy is produced.

Purpose of the invention This invention was made in view of the above problems, and is an electric motor having a structure that can compensate not only for the weight imbalance due to the blade body, but also for the weight imbalance due to variations in the shaping of the rotating shaft. The purpose is to provide cooking utensils.

Means for Solving the Problems In order to achieve the above object, this invention provides a passage space around the rotation axis of the cutter along the circumferential direction of the rotation axis, and a spherical balance weight is installed in this passage space. It is characterized by the fact that it is freely rollable.

Function Since the electric cooker according to this invention has the above-mentioned configuration, if the center of gravity of the cutter and the axis of rotation do not match, the centrifugal force caused by the rotation causes the balance weight to move inside the passage space. It rolls and automatically balances itself.

Examples This invention will be explained below based on the drawings. 1st
The figure and FIG. 2 show an embodiment of this invention.

1, the main body 10 is formed hollow from a lower housing 11 and an upper housing 12. A hollow protruding portion 13 is formed on one side of the upper housing 12, and a motor storage chamber 13a is formed within the protruding portion 13. A container mounting portion 14 is formed on the other side of the upper housing 12, the container mounting portion 14 being lower than the protruding portion 13. A mounting plate 15 is fixed within the upper housing 12.

A motor 16 disposed within the motor storage chamber 13 is fixed to a mounting plate 15. This motor 1
A small pulley 17 is fixed to the output shaft 16a of No. 6. Further, the rotational drive shaft 18 is connected to the mounting plate 1
5 and the center of the upper wall 14a of the container placement part 14 and protrudes upward, and the mounting plate 15
is rotatably held via a bearing 19. A large pulley 20 is fixed to the lower end of the rotary drive shaft 18, and a belt 21 is stretched between the large pulley 20 and the small pulley 17. The small pulley 17, large pulley 20, and belt 21 constitute a deceleration transmission mechanism.

A bottomed cylindrical container 22 is placed on the container placement portion 14 , and the upper end opening of this container 22 is closed by a lid 23 . The container 22 has an outer cylinder and an inner cylinder 22b, and has a double inner and outer structure, and the rotational drive shaft 18 is inserted into the inner cylinder 22b. A rotary shaft 31 of a chopping cutter 30 formed in a cylindrical shape is fitted onto this rotary drive shaft 18 . In the figure, 32 and 33 are the upper and lower blades of the chopping cutter 30.

At the upper end of the rotating shaft 31 of the chopping cutter 30, there is a lower plate 3 having an upper flange 34a on the periphery.
4 is integrally formed, and a bottomed cylindrical upper plate 35 is joined to the lower plate 34 with a peripheral wall 35a abutting the upper flange 34a. Also, lower plate 3
A cylindrical rib 34b having the same height as the upper flange 34a is formed in the center of the rotating shaft 31. A ring-shaped passage space S is formed along the line.

A spherical balance weight 36 is rotatably interposed within the passage space S.

Next, the operation of the electric cooking appliance configured as described above will be explained.

First, materials such as vegetables are placed between the outer tube 22a and the inner tube 22b of the container 22, and the upper open end of the container 22 is closed with the lid 23. After this, motor 16
When the output shaft 16a of the motor 16 is operated, the rotation of the output shaft 16a of the motor 16 is transmitted to the rotary drive shaft 18 via the small pulley 17, the belt 21, and the large pulley 20, and the chopping cutter 30 is integrated with the rotary drive shaft 18. It rotates and chops the material in the container 22.

If the center of gravity of the chopping cutter 30 deviates from the axis of rotation, the axis of rotation 31 will rotate with some wobbling, but the balance weight 36
The lower plate 34 is moved by centrifugal force based on the rotation of the rotating shaft.
It is pressed against the upper flange 34a and automatically rolls within the passage space S to a position where the center of gravity coincides with the rotation axis.

Due to the action of the balance weight 36, the weight balance of the chopping cutter 30 is balanced, and rotation without wobbling can be realized.

Effects As explained below, according to the electric cooker of this invention, the weight imbalance caused by the position of the blade, the molding condition of the rotating shaft, etc. can be automatically corrected using the balancing weight. can.

Therefore, even if rotary cutters with different weight balances due to manufacturing variations are used, it is possible to achieve rotational operation in the optimum state for each product.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the electric cooking device according to the invention, and FIG. 2 is an exploded perspective view of the upper end of the rotating shaft shown in FIG. DESCRIPTION OF SYMBOLS 10... Main body, 16... Motor, 22... Container, 30... Chopping cutter, 31... Rotating shaft, 34... Balance weight, S... Passage space.

Claims (1)

[Claims for Utility Model Registration] A main body containing a motor, a bottomed cylindrical container placed on the main body, and a cutter located at the bottom side of the container and rotationally driven by the motor. The electric cooking appliance is characterized in that a passage space is provided in the rotating shaft of the cutter along the circumferential direction of the rotating shaft, and a spherical balance weight is rotatably interposed in the passage space. An electric cooker.