JPS6126371B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a juicer that stores lees inside a centrifugal separation basket, and has a balancer structure for reducing rotational vibrations caused by unbalance of lees that occurs when extracting lees. Specifically, the purpose is to prevent a decrease in the strength of the welded surface of the hollow annular body constituting the balancer.

As a means to reduce the rotational vibration of conventional juicers that store lees internally, a method is used to increase the mass of the rotating body using a balance weight installed in the centrifugal separation basket, thereby increasing the moment of inertia. .

However, the problem with this method is that the mass of the balance weight is large, which makes the entire product heavy and also increases the cost. Furthermore, since the moment of inertia of the rotating body increases, the input to the motor increases when starting, and the stopping time becomes longer when stopping, creating safety problems.

As a method to solve the above problems, it has been considered to provide a hollow annular body with an appropriate amount of liquid sealed therein instead of the balance weight.

The problems with this method are as follows. That is, in producing the hollow annular body, the hollow annular body is currently divided into vertical parts and integrally formed by methods such as hot plate welding and ultrasonic welding. Therefore, the strength of this welded surface is not necessarily sufficient, and if any impact force is applied to this welded surface, the sealing performance of the welded surface will be poor, and as a result, the sealed liquid The point is that it causes leakage.

The present invention solves the above-mentioned drawbacks, and one embodiment thereof will be described in detail below with reference to the accompanying drawings.

In the figure, 1 is a main body of a juicer having legs 3 on a bottom plate 2, 4 is a motor attached to a support member 5 protruding into the main body 1 via a buffer 6 with screws 7, and 8 is a motor mounted on the main body 1. It is a youth receptacle having a youth receptacle 9 inside and a youth outlet 10 at the bottom.
Inside is a rotatable, approximately cylindrical centrifugal separation cage (hereinafter referred to as a spinner) whose diameter increases upward.
11 are deployed.

12 is a cutter fixed to the lower surface of the spinner 11, and 13 is a cylindrical comb-shaped filter that is detachably inserted into the spinner 11, and has a plurality of slits 13a in the vertical direction.

14 is an annular recess formed integrally with the spinner 11 at the upper end of the spinner 11; 15 is an annular-shaped washer that fits into the annular recess 14;
These two members are integrated by hot plate welding or ultrasonic welding to form the hollow annular body 16. Centrifugal separation cage 11, annular recess 14, and annular Watsuper 1
5 are all made of resin. In addition, the above welding surface 1
6a is positioned so as not to coincide with the horizontal extension surface A-A of the cutter 12.

Reference numeral 17 denotes an appropriate amount of liquid sealed inside the hollow annular body 16. In order to prevent rapid movement of this liquid, a partition plate 18 having a plurality of slits 18a is installed inside the hollow annular body 16. It is set up.

Reference numeral 19 denotes a charging tube provided on the juice receiving container lid 20, and the inside thereof has the role of guiding fruits, etc. that are pressed against the cutter 12 by a pushing rod 21. 22 is a cooling fan for cooling the motor 4, and 23 is a deceleration mechanism for decelerating the rotation of the motor 4 and transmitting the rotation to the output shaft 24.

Next, the operation and effects of the above-mentioned juicer will be explained.

The fruits pressed against the cutter 12 by the pushing rod 21 are crushed by the high-speed rotation of the cutter 12, and centrifugal force is applied by the rotation of the spinner 11, which adheres to the inner surface of the cylindrical comb-shaped filter 13 and is separated into fruit and lees. , the youth rises on the inner wall surface of the spinner 11 and is discharged from above,
Youth outlet 1 via youth receiver 9
Drops outward from 0.

On the other hand, the squeezed lees of youth are stored inside the cylindrical comb-shaped filter 13, that is, in the spinner 11.

At this time, a part of the lees crushed by the cutter 12 passes through the slit portion 13a of the cylindrical comb-shaped filter 13 while retaining a large centrifugal force and collides directly with the inner wall of the spinner 11. The energy at the time of this collision is approximately equal to the rotation speed of the spinner 11.
It is quite large due to its high speed of 4000 rpm.

If the welding surface 16a of the hollow annular body 16,
If the above-mentioned high-energy dregs collide many times, the welding strength of the welded surface 16a cannot necessarily be completely processed, so the sealing performance of this welded surface is impaired, and as a result, , the inner liquid will leak and the balance absorption effect will decrease.

Note that a part of the lees comes out little by little from the total length L of the slit portion 13a of the comb-shaped filter 13 due to the centrifugal force. The slit portion 13 of the comb-shaped filter 13 is scattered horizontally with a larger kinetic energy.
Since the lees passes through the slit portion 13a and collides with the inner wall of the spinner 11, the impact force exerted on the inner wall of the spinner 11 is greater than that of the lees flowing out from the other slit portions 13a.

In the embodiment, since the welding surface 16a and the horizontal extension surface A-A of the cutter 12 do not match, the lees crushed by the cutter 12 and having high kinetic energy may directly collide with the welding surface 16a. Therefore, the sealing performance of the welding surface 16a is not impaired. Furthermore, with the above structure, the cutter 12 does not get in the way when welding the annular recess 14 of the spinner 11 and the annular shaped washer 15, making it possible to improve production efficiency.

In this way, the jusser of the present invention prevents a decrease in the strength of the welded surface of the hollow annular body by considering the positional relationship between the horizontal extension surface of the cutter and the welded surface of the hollow annular body constituting the balancer, and can be used for a long period of time. It is possible to achieve the intended purpose over a period of time,
The effect is significant.

[Brief explanation of the drawing]

The figure is a longitudinal sectional view showing an embodiment of the present invention. 4... Motor, 11... Centrifugal separation basket (spinner), 12... Cutter, 14... Annular recess, 1
5...Annular type Watsupur, 16...Hollow annular body,
16a...Welding surface.

Claims (1)

[Claims] 1 A plurality of vertically divided members are welded to form a hollow annular body constituting a balancer, this hollow annular body is formed integrally with a centrifugal separation cage, and a cutter is installed at the inner bottom of this centrifugal separation cage. 1. A lever comprising: a welding surface of the hollow annular body and a horizontally extending surface of the cutter, the positions of which are different from each other.