CN111263603B - Juice extracting barrel and juice extractor using same - Google Patents

Referring to fig. 1 to 4, a juice extractor according to an embodiment of the present invention may include a main body 1, a

100, a

300, and a

400.

The main body 1 may include an

2 and a

3. A drive motor for generating a drive force and a speed reducer (not shown) for transmitting the drive force to a drive shaft are disposed inside the main body 1.

The

2 may be formed in a shape corresponding to the outer circumferential surface of the

200 so as to support the lower part of the

200.

The

3 may be formed in a plate shape extending to one side at a lower portion of the body 1. A residue cup (not shown) for containing the residue may be disposed on the lower supporting

3.

The speed reducer performs a function of converting high-speed rotation of the drive motor into low-speed rotation, and may be disposed inside the

2.

The

100 is configured to temporarily accommodate a juicing object (for example, vegetables, grains, fruits, etc.) and guide the juicing object to the juicing

400, and the

100 is detachably coupled to the

200.

The

200 is provided in a substantially cylindrical shape having an open upper surface and an internal space, and is attached to an upper portion of the main body 1. Further, a

220 is formed at one side, and a

230 is formed at the other side.

The

400 and the screw are disposed in the inner space, and the

100 is coupled to the open upper surface.

The

200 is a core structure of the present invention together with the

400, and a detailed description thereof will be made after the

400.

The lower side of the

300 is connected to a driving

6 of a driving motor, and the upper side is coupled to a coupling portion 110 provided in the

100, and the driving

6 receives a rotational force generated from the driving motor to perform a rotational motion, thereby squeezing or pulverizing the objects to be juiced.

When the

300 is disposed inside the

400 described later, the space (space) between the screw and the

400 is formed to be narrower toward the lower portion up to a predetermined point.

Further, a plurality of

310 are formed at a portion of the

300 that contacts the

400. The

310 causes the juice to be squeezed into a gap (space) formed between the

300 and the

400, and the juice is transferred to the lower side.

Also, as for the width of the

310 formed on the

300, a single screw flight is formed on the upper side, thereby having a relatively wide interval. Also, a plurality of

310 are formed at a lower side so as to have a relatively narrow interval.

That is, the function of crushing the object to be juiced is performed on the upper side, and the function of crushing and squeezing the object to be juiced is performed on the lower side. Thus, in the process of moving the object to be juiced downward from the upper side by the rotation of the

300, the object to be juiced is juiced between the

310 and the inner side surface of the

10, which will be described later.

The

400 is a core structure of the present invention, and has a hollow cylindrical or truncated cone shape, and can extrude or crush a juice extracting object by an interaction with the

300.

Fig. 5 is a perspective view of the juice extractor of fig. 3, and fig. 6 is a bottom perspective view of the juice extractor of fig. 3. Referring to fig. 5 and 6, the

400 may include an

10 and an

20. Furthermore, the

400 may be constructed by combining the inner and

10 and 20.

Here, the

10 and the

20 may be formed of a material such as Polyetherimide (PEI).

The

10 has a substantially cylindrical shape, and the upper and lower sides thereof are openable. Here, the

10 includes a plurality of

11, and a plurality of

12 are formed through the plurality of

11.

When the

300 is accommodated in the juice extractor, the

12 is not limited to a bar-shaped hole or an egg-shaped hole as long as it is a hole intersecting the thread of the

300.

As for the

12, the width of the

12 on the upper side may be smaller than the width of the

12 on the lower side. That is, the width of the

12 may be narrower toward the upper side.

Also, a stepped

121 may be formed on the

12. The width of the

12 on the upper side may be smaller than the width of the

12 on the lower side with respect to the

121.

Also, a

13 may be formed to protrude on the inner circumferential surface of the

11. In the present embodiment, the

13 is formed in a protruding band shape, but may be deformed into any shape that abuts against the screw thread.

The

13 press or crush the material by interacting with the

310 as the

300 rotates.

Without the

13, the objects to be juiced may not move downward to be stagnated, or the pressing force or the pulverizing force is weak or may not occur.

In the edge of the

12 formed in the up-down direction, the

13 may be formed to protrude radially inward.

The height of the

13 may be set to be longer than the width (or amplitude) of the

12.

Further, a

14 protruding in the longitudinal direction may be formed on the inner side surface of the

11.

The

14 may perform a function of enhancing rigidity of the

10 and may perform a function of guiding the objects to be juiced to the inside of the

400.

Also, the

14 may perform a function of adjusting the position of the

300 and adjusting the juicing space.

The

14 perform a function of transferring a material put into the

400 to a lower portion and crushing a juice extracting object.

For this, the

14 may be vertically formed in the up-down direction on the inner circumferential surface of the inner module 10 (or the inner side surface of the inner panel part 11).

The protruding height of the

14 may be set to have the same height from the upper portion to the lower portion of the

10, but may preferably be set to be gradually lower from the upper portion to the lower portion of the

10.

Also, the

14 may be formed to be inclined downward from the upper portion to the lower portion of the

10, and may be formed at a middle portion thereof with a step portion 14-1 protruded to the

300 to form a step.

The position, number or protrusion height of the stepped portion 14-1 may be variously modified according to the shape of the

300 and the design condition of the

310.

The number and arrangement of the

14 may be variously changed as necessary in consideration of design conditions and juicing efficiency.

In the embodiment of the present invention, the example in which the

14 is formed to be vertically formed along the vertical direction of the

10 has been described, but the scope of the present invention is not limited thereto.

That is, the

14 may be formed to intersect with the

310 of the

300 and have a predetermined slope, so that the objects to be juiced are crushed while being transferred downward by the interaction of the

300 and the

14 of the

10.

In addition, the operation according to the formation lengths of the

13 and the

14 will be described.

The

13 are used to perform the following functions: that is, the juice extracting object transferred to the lower portion by the rotation of the

300 accommodated in the

10 is finely and uniformly secondarily pulverized in cooperation with the

300.

For this reason, the

13 are formed on the lower inner surface of the

11. That is, the

13 may be formed to have a length in the up-down direction shorter than that of the

14.

As a result, the

14 are formed on the inner side surface of the

11 over the entire region from the upper portion to the lower portion; the

13 are formed only to a set height in the lower portion of the

11.

If the

13 are formed in the middle portion of the inside of the

11, the material is finely crushed in the middle portion of the

11 by the

13 and the

300, the particle size of the object to be juiced is sharply reduced, and the object to be juiced is not caught by the

14 in the lower portion of the

11 and rotates together with the

310 of the

300.

Therefore, the object to be squeezed cannot be smoothly transferred downward along the

310 of the

300, and the object to be squeezed stays inside the

11.

If the object to be juiced stagnates inside the

11, stagnation of the object to be juiced becomes more serious due to the object to be juiced being further thrown in, and the object to be juiced must be forcibly pressed and thrown in using another tool, which is inconvenient.

In order to prevent such a problem, the

13 according to the embodiment of the present invention are formed at the lower portion of the

11, so that the size of the juicing object does not change rapidly but changes stepwise, and thus the juicing object can be smoothly transferred to the lower side by the

310 and the

14, and the juicing object can be more finely pulverized by the

13 at the lower portion of the

11.

Further, the

13 are formed at the lower portion of the

11, so that the pressure of the object dregs to be squeezed against the

11 and the

300 is gradually increased in the process of smoothly transferring the object to be squeezed from the upper portion to the lower portion of the

11 by the

300 and the

14. Due to such pressure, juice extracted from the object of juice extraction can be smoothly discharged through the gap formed between the

12 of the

10 and the

22 of the

20.

Also, as the primarily pulverized juice extracting object is transferred to the lower portion to be pulverized more finely by the

13 formed at the lower portion of the

11, the dregs of the juice extracting object are strongly pressed due to the increased pressure between the

300 and the

11, the juice generated at this time is pushed upward, and the juice is discharged through the gaps formed between the

12 of the

10 and the

22 of the

20, thereby improving the juice extracting efficiency.

Thereby, when the

10 is coupled with the

20, a gap is formed, which is formed to be gradually enlarged toward the radial outside, and thus, juice can be smoothly discharged. The cross section of the

11 may be semicircular or trapezoidal.

In addition, the plurality of

11 may include

11 having a relatively narrow width and

11 having a relatively wide width.

That is, in order to fix the coupling position of the

10 and the

20, a space in which the interval between the plurality of

22 is relatively narrow and a space in which the interval is relatively wide may be formed. A space having a relatively wide interval between the plurality of

22 may be inserted into the

11 having a relatively wide width.

Also, the

13 may be formed on the inner side surface of the

11 having a relatively narrow width, and the

14 may be formed on the inner side surface of the

11 having a relatively wide width.

The cross section of the

11 may have a shape that widens toward the radially inner side of the

10.

Further, a

111 for engagement is formed below the

11, and an annular

16 is formed radially inward.

The

111 for engaging is configured to be coupled to an

211 formed on an

27 of the

20, which will be described later, and performs a function of fixing the coupling of the

10 and the

20.

The

16 supports the plurality of

12 formed in the

11 so as to have a constant width, and therefore the width of the

12 can be kept from being changed during juicing.

Moreover, since the upper surface of the

16 is formed to be inclined downward radially outward, juice can be easily discharged and the juice extraction efficiency can be improved.

Although the dregs are immediately discharged downward when the lower end of the

10 is completely opened, the dregs are temporarily stagnated if the

16 is formed at the lower end of the

10, and thus the juice extracting efficiency can be further improved.

In the present embodiment, the

16 is formed inside the engaging

111, but the

16 may be directly joined to the inner surface of the

11.

Further, a

19 is formed at a lower portion of the

11, and the

19 penetrates a

29 of an

20 described later and is supported by a bottom plate surface of the

200.

The

19 may be formed to protrude toward the lower side of the

16, or may be formed as a groove recessed upward.

Also, a spiral guide rib (18 in fig. 7) may be formed toward the center on the upper surface of the

16.

In this case, on the upper surface of the

16, a

18 is formed extending from the

14 toward the central portion of the

10 so that the dross can be accurately guided to be discharged downward after being caught.

The

18 may be formed to extend from the

14 and may be formed to be inclined at a prescribed angle to the rotation direction of the

300.

That is, the crushed residue to be juiced between the

300 and the

10 is moved downward by the

13 and the

14, and the

18 formed as an inclined protrusion performs a function of guiding the residue to the residue discharge port so that the residue can be smoothly moved to the

230 of the

200.

In addition, a

15 may be formed in a part of the outer surface of the

11. The

15 is sandwiched by

25 formed on the inner surface of the

21, which will be described later, so that the coupling positions therebetween can be fixed.

Next, the

20 will be explained. The

20 has a substantially cylindrical shape, and includes an

21 having an open upper and lower sides, and a rib protruding from an inner surface of the

21.

The

21 is formed to be detachable (detachable) while accommodating the

10 therein. That is, the

20 is coupled to the

10 so as to surround and accommodate the

10 when coupled to the

10. At this time, the

20 can wrap and support the

10.

The

22 is inserted into the

12 of the

10 and forms a gap with the

12, and the

22 may be formed to protrude from the inner side surface of the

21.

In the present embodiment, the rib is formed in a bar shape elongated in one direction, but the shape is not limited if the

12 of the

10 can be inserted and formed as a gap. Meanwhile, the

22 may be formed independently and coupled to the

21.

At this time, in order to make the width of the

22 narrower toward the upper side, the width of the

22 on the upper side may be smaller than the width of the

22 on the lower side.

Further, a stepped

24 is formed on the

22, and the width of the

22 on the upper portion side may be smaller than the width of the

22 on the lower portion side with reference to the stepped

24.

Further, a plurality of juice discharge holes 23 may be formed in the

21 along the outer surface.

Here, the bottom plate surface of the

23 is formed to be inclined downward toward the outside in the radial direction, so that juice can be easily discharged and the juice extracting efficiency can be improved.

In addition, a

26 may be formed on the upper side of the

21. The

26 may be installed in a support groove (210 of fig. 3) formed on the inner circumferential surface of the

200.

By fitting the

26 into the

210, the outer surface of the

20 is supported in a state of being spaced apart from the inner surface of the

200, and the

20 can be fixed without rotating in the rotational direction in accordance with the rotational force of the

300.

Here, the

26 may be formed in a shape of supporting at least two points in order to prevent the rotation of the

20.

In the present invention, four

26 are formed at equal intervals in the circumferential direction in a plan view for stable coupling of the support protrusions 26, and the

210 of the

200 are formed in the same number at positions corresponding to the

26.

Moreover, the

26 is formed on the upper outer peripheral surface in particular in the upper side of the

21. Accordingly, when the user disposes the

20 in the

200, the

210 can be easily recognized with the naked eye of the user, thereby improving the assembling property.

At the same time, the

26 are fitted into the

210, whereby the

20 can be fixed, and the assemblability can be significantly improved.

Further, a

25 to be inserted into the

15 of the

10 by means of insertion coupling, sliding coupling, or the like is formed on the inner surface of the

21.

The

15 and the

25 are inserted and coupled to each other, so that the coupling position between the

10 and the

20 can be fixed.

That is, the coupling of the

15 and the

25 allows the coupling position, rotation, and inclination of the

10 and the

20 to be restricted, and the size of the gap to be maintained.

Also, an

27 may be formed on the lower side of the

21. Due to the

27, the dross cannot move directly under the

10, and the dross temporarily rests on the upper surface of the

27.

That is, since the time for the juice extracting object to stay between the

200 and the

10 is increased, the juice extracting object can be sufficiently pressed, and thus the juice extracting efficiency can be increased.

On the other hand, a

29 through which the

19 of the

10 passes is formed on one side of the

27.

The size of the gap can be maintained by determining the relative position of the

20 to the

10 by coupling the

29 and the

19.

In the above-described

19 and

29, the protrusion may be deformed into a groove and the groove may be deformed into a protrusion, and means for fixing the

10 and the

20 is not limited to the above-described coupling groove and coupling protrusion.

Further, a catching

211 is formed at a lower side of the

27. Therefore, when the

20 is surrounded and coupled to the

10, the catching

111 of the

10 is mounted to the catching

211, and the

10 supports the lower end of the

10.

Fig. 7 is a coupling state diagram of fig. 5, and fig. 8 is a coupling state diagram of fig. 6. Referring to fig. 7 and 10, when the

10 is received inside the

20, the

20 may surround and be coupled to the

10.

At this time, the

12 between the

11 can be inserted with the

22 protruding from the inner surface of the

21 to form a predetermined gap a. Here, the size of the gap a may be constant or not. The slit a may be formed to communicate with a partitioned space b described later.

The slit a may be formed to be narrower from the upper side to the lower side because the upper side slit a1 is formed to be larger than the lower side slit a2 in the longitudinal direction. That is, since a greater pressure is applied to the lower side of the

400 during the pressing process, it is preferable to form the gap of the lower side of the

400 to be narrow.

For example, if the width of the

12 between the upper portions of the

11 is constant and the width of the

22 on the upper side of the stepped

24 is narrower toward the upper side, the size of the gap can be increased toward the upper side based on the stepped

24.

The size of the gap a does not change during the juicing process, but can be kept constant. In addition, if the object to be juiced is a relatively hard object to be juiced such as carrot, the object may be caught by the gap a and stacked during the juicing process. In this case, since the object to be juiced is caught by the stepped

24, the object to be juiced can be prevented from being accumulated in the gap a.

Fig. 9 is a longitudinal sectional view taken along the line I-I 'of fig. 7, and fig. 10 is a longitudinal sectional view taken along the line II-II' of fig. 7. Referring to fig. 9 and 10, when the

10 is accommodated in the

20 and coupled, a space b may be formed between the outer surface of the

11 and the inner surface of the

21.

At this time, at least a part of the

21 and the

11 may be in line contact or surface contact from the upper end thereof contacting each other to a predetermined point downward, and the partitioned space b may be formed after the predetermined point. The space through which the juice can move, such as the slit a, may be formed in the portion where the at least one portion is in line contact or surface contact.

When the

10 is vertically detachably accommodated in the

20 and coupled, the inner surface of the

21 is surrounded by and coupled to the outer surface of the

11.

At this time, the outer side surface of the

11 is formed to be inclined by a predetermined angle a with respect to a vertical line, the inner side surface of the

21 is formed to be inclined by a first angle B with respect to the vertical line from the upper end of the

21 to a preset point, and is inclined by a second angle C with respect to the vertical line from the preset point of the

20 to the bottom plate of the

20.

The angle a of the outer peripheral surface of the

11 is set to the same angle as the first angle B of the

21, and at least a part of the outer surface of the

11 and the inner surface of the

21 is in line contact or surface contact (portion denoted by "X") from the upper portion of the

20 to a predetermined point of the transfer space, so that the upper portion of the

11 can be supported by the upper portion of the

21.

In this case, the angle formed by the outer surface of the

11 and the inner surface of the

21 is "0". Accordingly, when a juice is extracted from a juice-extracting object by the rotation of the

300, a load or pressure applied to the

10 is transmitted to the

20, and an effect of enhancing the rigidity of the

10 can be obtained.

Since the inner surface of the

21 is formed at a second angle larger than the first angle from a predetermined point arranged in advance to the bottom plate surface of the

21, the angle α formed by the outer surface of the

11 and the inner surface of the

21 is larger than "0".

Therefore, a space b (see the portion denoted by "Y") is formed between the outer surface of the

11 and the inner surface of the

21. As described above, the partitioned space b functions as a flow path through which juice discharged through the slit a moves.

In this way, since the angle α formed by the outer surface of the

11 and the inner surface of the

21 is larger than "0", the partitioned space b can be formed to be wider toward the lower side. By forming the partitioned space b, a space in which juice can be discharged through the slits a and flow can be secured.

Preferably, the

11 is formed in a cylindrical shape having a diameter that decreases toward the lower side, so that the partitioned space b becomes wider toward the lower side.

Alternatively, a step may be formed below the

11, and the step may widen the partitioned space b toward the lower side.

As described above, the juice passing through the partitioned space b is discharged to the outside of the

20 through the

23, and the sludge can be discharged to the lower side of the

10 between the

300 and the

10.

Referring to fig. 1, 13 to 15, the

200 is provided in a substantially cylindrical shape having an open upper surface and an inner space formed therein, and is mounted on an upper portion of the main body 1. The

400 and the

300 are disposed in the inner space, and the

100 may be coupled to the open upper surface.

A

260 is formed in the center of the bottom plate of the

200. The driving

6 is inserted into the

260 and connected to the

300, and can transmit power to the

300.

The inner circumferential surface of the

260 may have a shape corresponding to the shape of the driving

6 so as to be able to receive the rotational force generated in the driving motor through the driving shaft.

That is, the

200 is installed in the main body 1 so that power of a driving shaft (not shown) receiving power of a driving motor (not shown) can be transmitted to the

300.

A

261 made of an elastic material such as a gasket may be provided around the

260. That is, the driving shaft for transmitting power to the

300 is inserted into the

260, and the leakage of the squeezed dregs or the squeezed juice to the driving shaft side can be prevented by the

261.

Further, a

220 is formed at one side of the lower portion of the

200, and a

230 is formed at the other side.

In order to easily discharge juice, the

220 is formed to protrude from one side of the

200 in a tubular shape, so that dregs can be discharged to a right lower side.

At this time, the

220 may be opened or closed by the juice opening and

240, and the

230 may be opened or closed by the residue opening and

250.

Further, a

298 and a

297 are formed in the bottom surface of the

200 centering on the

260.

The

298 is formed in the bottom plate surface of the

200 in the circumferential direction radially outward from the

260.

Further, the

297 may be formed in the circumferential direction on the bottom plate surface of the

200, and may be formed at a position radially outward of the

298, similarly to the

298.

That is, the

298 is located radially inward of the

20 and the

297 is located radially outward of the

20.

Also, a juice

221 for coupling the

297 and the

220 to each other is formed, and a slag

231 for coupling the

298 and the

230 to each other is formed.

At this time, a cutting

232 for cutting the

297 and the

298 from each other is formed, so that juice and dreg can be completely separated and discharged through different discharge ports.

In addition, a plurality of

299 may be formed between the

298 and the

297 in a circumferential direction. The present invention is illustrated in a shape in which a recess is formed.

The

299 may be inserted with the

19 of the

10 protruding to the lower side of the

29 of the

20.

In this way, the

299 can be fixed to the

19 of the

10 and the

29 of the

20, so that the

10, the

20, and the

200 can be integrally coupled. Accordingly, even under the pressing force caused by the rotation of the

300, the gap a and the partitioned space b can be maintained while preventing the

10 and the

20 from being damaged.

First, juice discharge is explained. First, as shown in fig. 17, when the juice extracting material is put into the

100, the

300 is rotated to press the material while moving the material downward, and then, as shown in fig. 18, juice is discharged through the gap a between the

12 of the

10 and the

22 of the

20.

Then, as shown in fig. 17, the juice discharged from the gap a between the

12 and the

22 passes through the partitioned space b formed between the

10 and the

20, and then is discharged between the inner circumferential surface of the

200 and the outer surface of the

20 through the

23 of the

20.

Next, the juice discharged between the inner circumferential surface of the

200 and the outer surface of the

20 moves downward, flows into a

297 formed in the bottom plate of the

200, passes through a juice

221 connected to the

297, and is discharged through the

220.

Next, with respect to the slag discharge, referring to fig. 19, the slag pressed between the

300 and the

10 flows toward the

298 and is discharged through the

230 after passing through the slag discharge connection groove 231 (see an arrow in fig. 18).

At this time, the dross cannot directly move downward of the

10 due to the

27 extending radially inward from the lower end of the

10, and the dross temporarily stays on the upper surface of the

27.

That is, since the time for the juice extracting object to stay between the

200 and the

10 is increased, the juice extracting object can be sufficiently squeezed, and the juice extracting efficiency can be increased.

Referring to fig. 20, a separate space may not be formed between the outer surface of the

11 of the

10 and the inner surface of the

21 of the

20.

In this way, when the outer peripheral surface of the

11 is in close contact with the inner peripheral surface of the

21, even if vibration is applied to the entire

400 during juice extraction, the

10 is in close contact with the

20, and thus the size of the gap a can be effectively kept constant.

At least one of the inner surface of the

21 and the outer surface of the

11 may be provided with a

130 that supports the inner surface of the

21 and the outer surface of the

11 in close contact with each other.

In the present modification, the supporting

130 is formed on the inner surface of the

21 so as to protrude in the radial direction.

When the

10 is coupled to the

20, the

130 is closely attached to the outer surface of the

11.

Therefore, even if vibration is applied to the

400 during juice extraction, the

130 elastically supports the

11 and the

21 in close contact with each other, and thus the size of the gap a and the separation space b formed between the

11 and the

21 can be effectively kept constant.

Although not shown, the supporting

130 may be formed as at least two parts that are separable from each other in a lockable manner (e.g., a manner in which a concave portion and a convex portion are coupled to each other).

In this case, a part of the separated

130 may be formed on the inner surface of the

21, and the other part may be formed on the outer surface of the

11.

That is, if the

11 and the

21 are formed to be locked with each other, the elastic support of the vibration applied to the

400 can be improved.

Referring to fig. 23, in the

10 according to the third modification, the formation position of the

13 formed on the inner side surface of the

11 is changed, and the

18 is further increased.

The

13 according to the third modification is formed at a position abutting on the width direction end of the

12 or adjacent to the

12. The

13 is shown in abutment with the widthwise end portion of the

12.

When the

13 is formed adjacent to the

12, the slag can be less likely to be caught in a gap described later than when the

13 is formed in the central portion of the

11.

That is, when the

13 is formed adjacent to the

12, the pressing force applied to the gap in the process of passing the object to be juiced over the

13 is reduced, and therefore, the dirt can be reduced from being caught in the gap.

Further, of the longitudinal edges of the

12 formed on the inner surface of the

11, the longitudinal edges located upstream with respect to the rotation direction of the

300 may be formed with

18 for preventing the dross from being caught in the gap.

If this is expressed differently centering on the

12, the

13 is formed on the upstream side edge of the

12 and the

18 is formed on the downstream side edge of the

12.

The

22 of the

20 are inserted into the

12, and a gap a is formed between the

12 and the

22 to discharge juice of the crushed juicing object. At this time, dregs to be juiced may be caught in the gap a. However, the

13 and the

18 prevent dregs to be juiced from being caught in the gap a.

This is explained in detail with reference to fig. 24. When the

300 rotates inside the

10, the object to be juiced moves downward in a space where the distance between the

310 and the

11 gradually decreases.

At this time, when the amount of the dregs of the juicing object crushed between the

300 and the

10 is a small amount which is not enough to pass over the

13, the dregs move to the lower side of the

10 along the

13.

At this time, when the amount of dross increases to an amount sufficient to pass over the

13, the dross passes over the

13 and moves toward the adjacent

13 by the rotational force of the

300.

Also, due to the height of the

13, the dross moves toward the adjacent

13 across the gap a between the

12 and the

22. When the dross passes over the

13, the dross moves to the adjacent

13 along the

18 formed on the edge of the

12 opposite to the

13, and thus the dross can be prevented from being caught in the gap a between the

12 and the

22.

Then, the dross colliding against the adjacent

13 moves to the lower side of the

10 along the adjacent

13.

Also, in the process that the object of juicing passes over the

13, the pressing force applied to the gap a formed between the

12 and the

22 is reduced, and thus the inclusion of dregs in the gap can be minimized.

Referring to fig. 25 and 26, in a

400 according to a fourth modification, the

21 of the

20 is formed as a continuous plate surface whose outer surface is closed. A step portion 28 protruding radially outward is formed on the

21. At this time, a step difference is illustrated between the stepped portion 28 and the

27.

Also, the

23 may be formed on the floor surface protruding radially outward from the step portion 28.

With this structure, juice discharged from the upper portion of the slit a can be discharged to the outer lower portion of the

20 through the juice discharge hole 140.

In this case, since the outer surface of the

20 is formed of a closed continuous surface, juice can be prevented from being splashed onto the inner surface of the

200.

Referring to fig. 27 and 28, in a

400 according to a fifth modification, the

21 is extended to the lower side of the

27 of the

20, so that a

21a is further formed, and the

11 of the

10 is formed to a length corresponding to the

21 a.

The

400 according to the fifth modification can extract juice not only to the outside of the

20 through the

23 of the

20 but also to the lower side along the longitudinal slit a formed between the

10 and the

20, so that the juice extracting efficiency can be improved.

At this time, the decelerator accommodating section 4 may be formed in a shape corresponding to the lower surface of the

200 to enable the

200 to be mounted.

Also, the

200 is installed in the reducer housing part 1 of the main body part 1 so that power of a driving shaft (not shown) receiving power of a driving motor (not shown) can be transmitted to the

300.

Also, the

2 of the main body part 1 may be formed in a shape corresponding to the outer circumferential surface of the

200 to support the side part of the

200.

In the present embodiment, the reducer case 4 is described as being formed on the lower side of the

200, but may be formed on the upper side of the

200 as needed.