JPS587218A - Jusa - 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 The present invention relates to a juicer that stores lees inside a centrifugal outer Km. A hollow annular body filled with an appropriate amount of liquid is effectively cooled during operation so that the sealing performance of the welded part is not impaired.

Conventionally, as a means to reduce rotational vibration in a juicer that stores lees internally, a balance weight installed in the centrifugal separation capacity is used to increase the mass of the rotating body and increase the moment of inertia. There is.

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

As a method for solving the above-mentioned problem, it has been considered to provide a hollow annular body with an appropriate amount of liquid sealed therein instead of the balance weight. When this method is applied to a juicer, a problem arises in terms of performance.

That is, when extracting juice, since the material to be cut (fruits, vegetables, etc.) is intermittently introduced, the rotation of the centrifugal separation capacity changes each time. Accordingly, the liquid in the annular hollow body also moves and collides with each other, resulting in an increase in the temperature of the liquid during long-term operation. Furthermore, there are also effects such as heat transfer due to heat generated by the motor, and it has been experimentally confirmed that the temperature of the liquid increases by several degrees Celsius.

Then, the air pressure inside the hollow annular body increases, and if the bath-receiving surface of the hollow annular body is incomplete, the sealing performance of the welded portion is impaired, resulting in leakage of the enclosed liquid.

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 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. There is a juice receiver inside the part 9 and a juice outlet LD on the bottom.
The juice container 8 is a container, and inside the container 8 there is a resin-made centrifugal tube that is approximately cylindrical and has a diameter that becomes thicker toward the top. A separation tube (hereinafter referred to as a spinner) 11 is arranged.

Reference numeral 12 is a letter cutter fixed on the lower surface of the spinner 11, and reference numeral 13 is a cylindrical comb-shaped filter that is freely inserted into the spinner 11.

This filter 13 has a plurality of slits 131L in the vertical direction.
It is what forms the.

Reference numeral 14 denotes a hollow annular body that is arranged concentrically with the spinner 11 and rotates together with the spinner 11. The hollow annular body 14 has an appropriate amount of liquid inside it, and also contains a suitable amount of liquid. In order to prevent sudden movement, the slit portion 15
A plurality of partition bodies 16 each having a capacity of 1 L are provided.

In this embodiment, the hollow annular body 14 is an annular square recess 14 integrally provided at the upper end of the spinner 11.
L and an annular □ mouth-shaped wasopper 14b that fits into the recess 14a, and the two are welded together by hot plate welding, ultrasonic welding, or the like.

Reference numeral 16 denotes a juice container that is provided on the container lid 1 and is a tube for feeding the juice.The inside of the tube 16 is hollow, and has the role of guiding the fruits, etc. that are pushed into the cutter 12 by the pusher 18. At the same time, the push-in 18
When removed, it also serves as a ventilation shell.

Note that the distal end portion 16a of the charging cylinder 1θ is also provided with a downward V-shape relative to the hollow annular body 14.

19 is a cooling fan for cooling the motor 4, and 2o is a deceleration mechanism for decelerating the rotational motion of the motor 4 and transmitting the rotational motion to the output shaft 21.

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

The fruits pushed into the cutter 12 by the pusher 18 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 juice and lees. ,
The juice rises on the inner wall surface of the spinner 11 and is discharged from above, and the discharged juice drips to the outside from the juice outlet 10 via the juice receiver 9.

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

At this time, since the fruits are not fed continuously but intermittently, the amount of load applied to the motor 4 also changes intermittently, and therefore the rotational speed of the motor 4 and the spinner 11 constantly change.

On the other hand, as the rotation of the spinner 11 changes, the hollow annular body 1
The liquid in 4 also fluctuates upward, causing repeated collisions between the liquids and collisions at the slit portion 15a.

Therefore, during long-term operation, the temperature of the liquid increases due to the energy of the collision, and the air inside the hollow annular body 14 expands accordingly, increasing the internal pressure. This increase in air pressure has an adverse effect on the sealing performance of the welded part of the hollow annular body 14. If the welded part strength is weak, the sealing performance will be impaired, and as a result, the sealing performance of the welded part of the hollow annular body 14 will be impaired. The liquid will flow out and the balance absorption effect will decrease.

In the embodiment of the present invention, since the hollow annular body 14 is located above the lower end 16a of the input tube 16 which functions as a ventilation barrel, the following effects can be achieved.

This occurs and the juice is eventually discharged to the outside from the juice outlet [110]. Therefore, when the air inside the spinner 11 becomes negative pressure and the push-in rod 18 is removed, the input tube 16 acts as a ventilation cylinder U1 and sucks in outside air. However, at this time, since the lower end 16,a of the charging cylinder 16 is positioned below the hollow annular body 14, the taken in outside air flows into the hollow from the tip 16a of the charging cylinder 16. After cooling the hollow annular body 14 by turning the inner wall, earthen wall surface, and even outer wall surface of the annular body 14, the juice is taken out and exhausted to the outside (flow shown by arrows in the figure).

Due to the cooling effect of this air flow, the hollow annular body 14
The increase in internal pressure inside the tank is suppressed. Additionally, since the spinner 11 itself is also cooled when the cooling air passes through the inner surface of the spinner 11, the conduction heat generated by the motor e is also cooled, and as a result, the internal pressure inside the hollow annular body 14 is further reduced. The rise can be suppressed.

In this way, the juicer of the present invention takes into consideration the positional relationship between the material input cylinder and the hollow annular body, so that the inside of the hollow annular body can be reduced.
The increase in pressure is suppressed, the sealing performance of the welded part is not impaired, and good performance is always obtained.

[Brief explanation of the drawing]

The figure is a longitudinal sectional view of a juicer based on an embodiment of the present invention. 1...Body, 4...Motor, 11...
...Centrifugal separation capacity (spinner), 14...
Hollow annular body, 16... Input tube, 16a...
...lower end.

Claims (1)

[Claims] a substantially cylindrical centrifugal separator rotated by a motor; a hollow annular body having an appropriate amount of liquid sealed therein and arranged concentrically with the centrifugal separator and rotating together with the centrifugal separator; 1. A juicer comprising a material charging cylinder located within a centrifugal separation capacity, wherein the hollow annular body is located above a lower end of the charging cylinder.