KR200497316Y1 - Juicer - Google Patents

Abstract

The present invention relates to a juicer. The juicer according to the present invention includes a juice drum that accommodates a screw for compressing the juice material, and a hopper coupled to the upper part of the juice drum and having a space for receiving the juice material, The hopper is rotatably coupled to the lower end of the hopper and includes a cutting portion that receives the rotational force of the screw and rotates to cut the juice material, and an open space into which the juice material is input is placed on the upper side of the cutting portion in the hopper. It is characterized by forming a .

Description

Juicer {JUICER}

The present invention relates to a juicer, and more specifically, to a juicer that produces juice by squeezing and pulverizing vegetables, fruits, etc.

For health reasons, the number of people making and consuming green juice or juice at home is increasing, and for this purpose, many devices that allow users to easily make juice from vegetables or fruits at home are being released.

In the past, juicers put ingredients into an inlet, crushed them with blades rotating at high speed, and made juice using a centrifugal method. However, these juicers may destroy the unique taste and nutrients of the ingredients during the high-speed crushing process, and it is difficult to make green juice with vegetables with stems or leaves, and it is also difficult to make juice with fruits with high viscosity such as kiwi or strawberry. In fact, it was completely impossible to make soy milk from soybeans.

To solve this problem, Republic of Korea Patent No. 10-0793852 uses a method of compressing and pulverizing ingredients between a mandrel and a screw rotating at low speed, using the principle of grinding soybeans with a millstone and pressing them to produce soymilk. It has the effect of making juice by grinding and pressing fruits with high viscosity such as tomatoes, kiwi, and strawberries on a grater, so it was possible to solve the problems of the conventional juicer as described above.

However, even in this case, there was the inconvenience of having to cut the material into small pieces in advance before putting it into the inlet due to the size of the screw and the size of the inlet that was manufactured to allow the appropriate size of material to be injected according to the size of the screw.

Republic of Korea Patent No. 10-0793852

Therefore, the purpose of the present invention is to solve such conventional problems, and includes a hopper attached to the upper part of the juice drum to pre-cut the juice material, and a cutting part that is supported only on the lower side of the hopper and rotates in conjunction with the screw. This allows large-sized juice materials, such as whole fruits, to be cut in advance before being put into the juice drum, and an open space where the juice materials are input can be formed on the upper side of the cut part in the hopper, so that the size of the juice materials put into the hopper is reduced. The goal is to provide a juicer that can make it larger.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The above object is, according to the present invention, a juice drum accommodating therein a screw for compressing the juice material; And a hopper coupled to the upper part of the juice drum and forming a space for receiving the juice material, the hopper is rotatably coupled to the lower surface of the hopper and rotates by receiving the rotational force of the screw to collect the juice material. This can be achieved by a juicer that includes a cutting part for cutting, and forms an open space into which the juice material is introduced on the upper side of the cutting part in the hopper.

Here, the cutting portion includes a hook-shaped cutting blade extending upward from the rotation center in the form of a spiral; And it may include a horizontal cutting edge extending horizontally from the bottom surface of the hopper.

Here, the hook-shaped cutting blade may be formed to extend upward in the shape of a spiral in the rotation direction of the cutting unit.

Here, an inclined curved surface that guides the juice material to move downward may be formed on the radial inner surface of the hook-shaped cutting blade.

Here, the hook-shaped cutting edge and the horizontal cutting edge may each extend in opposite directions from the rotation center.

Here, the horizontal cutting blade may be bent in a direction opposite to the rotation direction of the cutting unit.

Here, the height of the tip of the hook-shaped cutting edge is preferably higher than the height of the upper surface of the horizontal cutting edge.

Here, the hook-shaped cutting edge and the horizontal cutting edge may be formed as one piece.

Here, a first inner protrusion may be formed to protrude long and inward on the inner surface of the hopper in a vertical direction to support the juice material when the hook-shaped cutting blade rotates.

Here, a second inner protrusion may be formed on the inner surface of the hopper, protruding inward from the position where the end portion of the horizontal cutting blade is located, and allowing the juice material on the upper portion of the horizontal cutting blade to escape.

Here, the lower end of the first inner protrusion may be formed with a through groove penetrating both sides so that the upper end of the hook-shaped cutting blade passes.

Here, the hopper includes a hopper housing with an open top and the cut portion mounted on the bottom surface; And it may further include a lid portion that is hinged to the top of the hopper housing and opens and closes the top portion.

Here, the lid portion includes a hinge coupling portion hinged to the top of the hopper housing; and a magnet arrangement part that extends downward from the hinge coupling part and has a first magnet disposed therein, and is disposed at a position spaced apart from the first magnet so that when the lid part rotates about the hinge coupling part, the first magnet is disposed therein. a second magnet that moves according to the distance from the magnet; And it may include an opening/closing sensing unit further including a switch that generates an on/off control signal according to the position of the second magnet.

Here, the hopper housing further includes a handle portion protruding from the outer surface,

The lid part may further include a lid handle part fastened to the upper part of the handle part.

Here, a hook fastening portion protruding from the bottom surface is formed in the lid handle portion, a fastening hole penetrating through the handle portion is formed to allow the hook fastening portion to be inserted, and the hook fastening portion is hooked to a lower edge side of the fastening hole. A fixed step may be formed on the outer surface.

Here, anti-rotation ribs may be formed on both edges of the lid handle and protrude downward to support both upper edges of the lid handle.

Here, a safety guide portion is formed to protrude downward along the bottom edge of the lid portion and is inserted into the upper upper portion of the hopper. The safety guide portion has a protruding height that increases as it moves away from the position where it is hinged with the hopper housing. can be formed.

Here, the hopper includes a bushing portion inserted into a connection hole formed in the center of the bottom surface of the hopper; And a power transmission part that is inserted into a hole penetrating the inside of the bushing part and has an axial hole formed into which the upper rotating shaft of the screw is inserted, and the cut part can be screwed to a screw inserted through the axial hole.

Here, the inner surface of the bushing portion may be formed in a cone shape whose radius decreases toward the top.

Here, the power transmission unit includes a coupling part in which the shaft hole is formed and the outer surface is formed in a cone shape to correspond to the inner surface of the bushing part; And it may include an upper protrusion formed at the top of the coupling part to protrude above the upper surface of the bushing part and forming a screw hole into which the screw is inserted.

Here, the upper protrusion is formed in the shape of a prismatic shaft, and a prismatic groove may be formed on the lower surface of the cut portion to insert the upper protrusion.

Here, the upper rotation axis of the screw may be formed as an n-shaped square shaft, and the shaft hole may be formed as a 2n-shaped shaft hole.

Here, the screw is a single-edged screw in which one or more screw threads are formed to protrude helically on the outer peripheral surface of the screw body, and a single screw thread is formed to extend to the top of the screw body to form an external blade, and the external blade is radial It may be formed to protrude outside the longest radius of the screw body.

Here, the screw is divided into an upper cutting section for additional cutting of the juice material input from the hopper and a juice section for generating juice by squeezing the juice material below the cutting section, and a ring at the top of the juice section. An over-injection prevention rib that protrudes in the form may be formed.

Here, it further includes a juice separation drum disposed between the juice drum and the screw and having an outlet hole for discharging the juice generated from the juice material to the outside to separate the juice and residue, wherein the upper end of the juice separation drum is the upper part. An expansion part is formed whose radius increases as the radius increases, and the outer blade may be located inside the expansion part.

Here, a material inflow guide portion, which is a curved portion that gradually faces inward along the rotation direction of the screw, may be formed on one side of the expansion portion.

Here, the juice separation drum includes an inner plate portion open at both ends, a plurality of slits formed in the inner plate portion, and an inner module in which the expansion portion is formed; and an outer module including an outer plate part that accommodates the inner module inside so as to be removable, and a rib protruding from the inner surface of the outer plate part to be inserted into a slit of the inner plate part, wherein the outer module is connected to the inner module. When surrounding and combining, a gap, which is an outflow hole through which the juice flows out, may be formed between the slit and the rib.

Here, a main body including a lower body portion formed with a drive shaft protruding upward to support the lower end of the juice drum, and an upper body portion formed to protrude upward from one side of the lower body portion to support the side surfaces of the juice drum and the hopper. It further includes a rotation prevention key protruding long in the longitudinal direction on the upper body portion, and a rotation prevention key groove into which the rotation prevention key is inserted may be formed on the outer surface of the hopper.

According to the juicer of the present invention as described above, the juice material is cut and stirred within the hopper and then provided to the juice drum, so there is no need to pre-cut the juice material, which has the advantage of improving user convenience.

In addition, since the cut part is supported and rotated only on the bottom surface of the hopper, an open space can be secured above the cut part in the hopper, so the size of the juice material input into the hopper can be increased.

Figure 1 is a perspective view of a juicer according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the main body and the juice extraction unit in Figure 1.
Figure 3 is a cross-sectional view of Figure 1.
Figure 4 is an exploded perspective view of the juice extraction unit shown in Figure 2.
Figures 5 and 6 are perspective views of the hopper shown in Figure 4.
Figure 7 is a perspective view of the hopper showing the lid portion open.
Figures 8a and 8b are separated perspective views of the hopper shown in Figure 5, respectively.
Figures 9 (a) and (b) are vertical cross-sectional views of the hopper shown in Figure 5 according to the position of the cutting edge.
Figure 10 is a horizontal cross-sectional view of the hopper shown in Figure 5 showing the bottom of the hopper.
Figure 11 is a bottom view showing the bottom of the hopper shown in Figure 5.
Figure 12 is a perspective view of the cut portion shown in Figure 8.
Figures 13 and 14 are side views of the cut portion shown in Figure 12.
FIG. 15 is a perspective view showing the bottom of the cut portion shown in FIG. 12.
Figure 16 is a perspective view of the screw shown in Figure 4.
Figure 17 is a side view of Figure 16.
Figure 18 is a perspective view showing the bottom of the screw shown in Figure 16.
Figure 19 is a modified example of the screw shown in Figures 16 to 18.
Figures 20 and 21 are exploded perspective views of the juice separation drum shown in Figure 4.
Figure 22 is a partially cut away perspective view of the juice separation drum shown in Figure 21.
Figure 23 is a partially cut away perspective view of the juice drum shown in Figure 4.
Figure 24 is a perspective view of the juice drum showing the juice stopper opened in Figure 23.
Figure 25 is a perspective view showing the rear of the juice plug shown in Figure 26.
Figure 26 is a perspective view showing the bottom of the juice drum shown in Figure 23.
Figure 27 is a perspective view of the lower part of the waste discharge port shown in Figure 26.
Figure 28 is an exploded perspective view of the main body shown in Figure 2.
Figure 29 is a perspective view of the open/close sensing unit shown in Figure 3.
Figure 30 is an exploded perspective view of the floating motor shaft shown in Figure 28.
Figure 31 is a partially cut away perspective view of the floating motor shaft illustrating the operation of the floating motor shaft.

Specific details of the embodiments are included in the detailed description and drawings.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete, and that common knowledge in the technical field to which the present invention pertains is provided. It is provided to fully inform those who have the scope of the invention, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining the juicer in the embodiments of the present invention.

Figure 1 is a perspective view of a juicer according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the main body and the juice part in Figure 1, Figure 3 is a cross-sectional view of Figure 1, and Figure 4 is a juice part shown in Figure 2. This is a separate perspective view.

The juicer according to an embodiment of the present invention can be largely divided into a main body 100 and a juicer 200.

The main body 100 seats and fixes the juicer 200, and receives external power from the power cable 102 connected to the lower part of the main body 100 to rotate the internal motor 1001 to operate the juicer 200. It provides driving force to rotate the constituting screw 230.

As shown in FIG. 4, the juice extraction unit 200 may be configured to include a hopper 210, a juice drum 280, a juice separation drum 260, and a screw 230.

The juice unit 200 is installed on the upper part of the juice drum 280 with the juice separation drum 260 and screw 230, which are composed of an inner module 240 and an outer module 250, installed inside the juice drum 280. Assembly is completed by fastening the hopper 210 to the hopper 210.

In this way, in a state in which the lower juice drum 280 and the upper hopper 210 are fastened, the juice unit 200 can be seated on the main body 100, and the drive shaft 130 protruding from the bottom surface of the main body 100 ) and operates by receiving power from it. That is, the rotational force of the drive shaft 130 is transmitted to rotate the screw 230 inside the juice drum 280 and the cut portion 225 inside the hopper 210 to cut and compress the input juice material to generate juice. Separate the juice and residue and discharge them.

As shown in FIG. 2, the juicer 200 can be installed in the main body 100 as shown in FIG. 1 only when the hopper 210 is fastened to the upper part of the juice drum 280. That is, in the present invention, the hopper 210 cannot be attached to the upper part of the juice drum 280 when only the juice drum 280 is seated on the main body 100. If the juicer is operated with only the juice drum 280 seated on the main body 100, the user may suffer unexpected injuries. As will be described later, in the present invention, power is supplied to the juicer only when the lid of the hopper 210 is closed while the juicer 200 is seated on the main body 100, so that the user may be harmed by unintentional operation of the juicer. Try to prevent injury in advance. In addition, mechanically, the entire juice unit 200 can be seated on the main body 100 only when the juice unit 200 is assembled, thereby further ensuring user safety. A description of the structure related to this will be provided later.

Hereinafter, each component constituting the juice extraction unit 200 and the configuration of the main body 100 will be described in more detail with reference to the drawings.

First, the hopper 210 according to an embodiment of the present invention will be described with reference to FIGS. 5 to 15.

FIGS. 5 and 6 are perspective views of the hopper shown in FIG. 4, FIG. 7 is a perspective view of the hopper showing the lid portion open, FIGS. 8A and 8B are separated perspective views of the hopper shown in FIG. 5, respectively, and FIG. 9 (a) and (b) are vertical cross-sectional views of the hopper shown in Figure 5 according to the position of the cutting edge, Figure 10 is a horizontal cross-sectional view of the hopper shown in Figure 5 showing the bottom surface of the hopper, and Figure 11 is a horizontal cross-sectional view of the hopper shown in Figure 5 showing the bottom surface of the hopper. Figure 5 is a bottom view showing the bottom of the hopper shown, Figure 12 is a perspective view of the cut part shown in Figure 8, Figures 13 and 14 are side views of the cut part shown in Figure 12, and Figure 15 is shown in Figure 12. It is a perspective view showing the bottom of the cut part.

The hopper 210 is detachably coupled to the upper part of the juice drum 280. The hopper 210 forms a space for storing the input juice ingredients (eg, fruits, vegetables, grains, etc.). The cutting part 225, which is rotatably fixed on the bottom surface of the hopper 210, receives power from the screw 230 and rotates to cut and stir the juice material and supply it to the juice drum 280 below. Therefore, in the present invention, since the cutting of the juice material is carried out within the hopper 210, there is no need to pre-cut the juice material before inserting it.

The hopper 210 can be broadly divided into a hopper housing 215, a lid portion 220, and a cut portion 225.

The hopper housing 215 has a cylindrical or truncated cone shape and forms a space through which juice is supplied through the open upper part.

As shown in FIG. 8, the bottom surface of the hopper housing 215 may be formed to be separable from the upper cylindrical body, but it is not necessarily limited to this and may be formed integrally.

A cutting part 225 may be rotatably mounted on the upper part of the bottom of the hopper housing 215. The cutting part 225 receives power from the screw 230 inside the juice drum 280 and is connected to the screw 230 and the They can rotate together.

On the inner surface of the hopper housing 215, comb protrusions 2151 may be formed along the circumferential direction, protruding long inward in the longitudinal direction. This is to prevent light juice ingredients such as leafy vegetables from absorbing moisture and sticking to the inner surface of the hopper housing 215 and to enable them to be easily removed. At this time, it is preferable that comb-tooth protrusions are formed on the entire inner surface of the hopper housing 215.

A handle portion 216 may be formed on one side of the outer peripheral surface of the hopper housing 215 to allow the user to hold the container. As shown, the handle portion 216 may extend in a ring shape from the upper end of one side of the cylindrical hopper housing 215 and extend to the lower end of the hopper housing 215. The lower end of the handle portion 216 must be the hopper housing. (215) It does not need to be configured to be connected to the lower end.

As shown, the handle portion 216 may be formed in a shape that includes a vertical surface extending vertically downward after the horizontal surface extends a predetermined distance from the upper part of the hopper housing 215, and the horizontal surface of the upper part includes a lid portion ( A fastening hole 2161 may be formed into which the hook fastening part 2221 of 220) is inserted and fastened.

A penetrating connection hole 2152 is formed in the center of the bottom of the hopper housing 215. Through the connection hole 2152, the upper rotating shaft 233 of the screw 230 located below the hopper 210 and the cut portion 225 located on the upper bottom of the hopper 210 can be connected to enable power transmission. The detailed structure regarding this will be described later.

At least one penetrating discharge hole 217 may be formed between the center of the bottom surface and the edge of the hopper housing 215. The juice material in the hopper 210 is cut and stirred by the cutting part 225 rotatably fixed on the bottom surface of the hopper 210, passes through the discharge hole 217, and is placed in the juice drum disposed below the hopper 210. It can be supplied as (280). In the drawing, one discharge hole 217 is formed on one side of the bottom surface of the hopper 210. The larger the number of discharge holes 217 or the size of the area of the discharge hole 217, the greater the amount (or the larger the size). The juice materials can be supplied to the juice drum (280). However, if too much of the juice material is supplied into the juice drum 280, a load may be placed on the screw 230, so the size and size of the discharge hole 217 are adjusted so that the juice material of the appropriate amount and size can be supplied. It is desirable to set the number.

Additionally, an inclined surface 2171 inclined toward the discharge hole 217 may be formed on the inner surface of the bottom of the hopper housing 215. At this time, it is preferable that the inclined surface 2171 is formed to slope downward along the rotation direction of the cutting portion 225. Since the height of the portion where the inclined surface 2171 and the discharge hole 217 come into contact is lower than the height of the inner bottom surface of the hopper housing 215, the juice material can be efficiently guided toward the discharge hole 217. Juice material that may be stuck or stagnant between the inner bottom surface of the hopper housing 215 and the horizontal cutting blade 227 of the cutting portion 225 can be smoothly moved downward by the inclined surface 2171.

Furthermore, as shown in FIG. 11, in the present invention, an inclined surface 2172 may be formed on the outer bottom surface of the hopper housing 215 (bottom surface of the hopper 210). The inclined surface 2172 is formed to slope downward from the discharge hole 217 along the rotation direction of the cut portion 225 to enable the juice material to be smoothly supplied to the juice drum 280 through the discharge hole 217. . The inclined surface 2171 formed on the inner surface of the bottom of the hopper housing 215 and the inclined surface 2172 formed on the outer surface of the bottom of the hopper housing 215 are the front end of the discharge hole 217 along the rotation direction of the cut portion 225, respectively. They are formed at the upper and rear ends, respectively, and the inclined directions are all inclined downward along the rotational direction of the cutting portion 225.

At the outer edge of the lower part of the hopper housing 215, a predetermined number of engaging protrusions 2174 that protrude long in the horizontal direction are formed along the circumference, which is formed on the inner edge of the upper part of the juice drum 280. ) together with the juice drum 280 and the hopper 210 to be detachably coupled.

The lid portion 220 is formed to be able to open and close the open upper part of the hopper housing 215. An additional inlet 2201 may be formed in the center of the lid portion 220. When a relatively small size of juice material needs to be added during the juice extraction operation, the juice material can be supplied into the hopper 210 through the additional inlet 2201. In addition, a push bar (not shown) can be inserted through the additional inlet 2201 to apply force so that the juice material inside the hopper 210 moves to the lower part of the hopper 210. Although not shown, a separate stopper may be formed to block the additional inlet 2201.

A pin hole 2203 penetrating in the horizontal direction through which a pin 224 can be inserted is formed on one side of the edge of the lid portion 220, more specifically, on one side opposite to where the handle portion 216 of the hopper housing 215 is formed. A hinge joint is formed. By placing the pinhole 2203 of the hinge joint between the pin fixing holes 2153 formed on both sides at the top of the hopper housing 215 and inserting the pin 224 into the pin fixing hole 2153 and the pin hole 2203. The lid portion 220 may be hinged to the upper part of the hopper housing 215. That is, in the present invention, the lid portion 220 is not separated from the hopper housing 215, but is hinged and formed integrally with the hopper housing 215.

The magnet placement portion 221 extends vertically downward from the hinge coupling portion. A first magnet 2211 is disposed inside the magnet placement portion 221 to detect the open/closed state of the lid. As will be described later, a second magnet 1102 may be placed inside the upper body 110. When the lid 220 is opened and closed, the magnet placement portion 221 rotates and changes its position, thereby changing the first magnet 1102. The magnetic force changes as the distance between the magnet 2211 and the second magnet 1102 changes, and whether the lid portion 220 is opened or closed can be detected by the movement of the second magnet 1102 according to the change in magnetic force. A detailed description of this will be provided later with reference to FIGS. 28 and 29.

When the lid portion 220 is opened, the magnet arrangement portion 221 extending vertically downward from the hinge coupling portion rotates toward the hopper housing 215, so interference with the outer surface of the hopper housing 215 may occur. Therefore, as shown, on the outer surface of the hopper housing 215 where the magnet arrangement part 221 is located, the hopper housing 215 forms a space in which the magnet arrangement part 221 can move toward the center of the hopper 210. ) An interference prevention groove 2154 recessed inward may be formed.

The lid handle portion 222 protrudes outward from the lid portion 220, which covers the open upper surface of the cylindrical hopper housing 215, on one side opposite the hinge coupling portion, and is located at the upper part of the handle portion 216. The lid handle portion 222 may be fastened to the handle portion 216 at the top of the handle portion 216. The lid handle portion 222 is formed to protrude from the lid portion 220 covering the open upper surface of the hopper housing 215 in a horizontal plane having a predetermined width, and a hook fastening portion 2221 is provided on the bottom of the lid handle portion 222. is formed protruding downward. At this time, the hook fastening portion 2221 is formed to protrude vertically downward to have a plate surface in the width direction of the lid handle portion 222 so that it can be pressed toward the user by the user's finger.

As described above, the upper horizontal surface of the handle portion 216 has a fastening hole 2161 that extends long in the width direction and has a shape corresponding to the cross section of the hook fastening portion 2221 so that the hook fastening portion 2221 can be inserted through it. This is formed.

In addition, a fixing step 2222 is formed on the outer surface of the hook fastening part 2221 so that the hook fastening part 2221 is caught on the side of the lower edge of the fastening hole 2161 and the lid part 220 is fixed without opening. There is a number.

Therefore, when the hook fastening part 2221 of the lid part 220 is inserted into the fastening hole 2161 and the fixed step 2222 of the hook fastening part 2221 is caught on the lower edge side of the fastening hole 2161, the lid While the part 220 covers the upper open surface of the hopper housing 215, artificial opening is prevented.

Conversely, while the user is holding the handle portion 216, the hook fastening portion 2221 is pulled toward the user with a finger such as the index finger to release the fixed step 2222 caught on the edge side of the fastening hole 2161, and in this state, the thumb The lid portion 220 can be opened by applying force to lift the lid handle portion 222 upward with the fingers of the back.

Furthermore, anti-rotation ribs 2224 may be formed on both edges of the bottom of the lid handle 222, protruding long downward in the direction in which the lid handle 222 protrudes. The anti-rotation rib 2224 is supported from both upper edges of the handle 216 when the lid 220 is closed, so that the lid 220 fastened to the upper part of the hopper housing 215 through the hinge joint is horizontal. Avoid turning in one direction.

As shown in FIG. 7, a safety guide portion 223 may be formed to protrude vertically downward along the bottom edge of the lid portion 220 and be inserted inside the upper end of the hopper 210. The safety guide portion 223 prevents the user's hand from entering the hopper housing 215 when the lid portion 220 is opened at a certain angle. As described above, the juicer of the present invention does not operate when the lid portion 220 is opened by the operation of the first magnet 2211 and the second magnet 1102, and the safety guide portion 224 is connected to the lid portion 220. ) Even if the lid part 220 is partially opened due to a sensing error of the open/closed sensing unit 115 that detects the open/closed state, it is not detected, thereby preventing unexpected safety accidents from occurring. In addition, the safety guide portion 223, together with the anti-rotation rib 2224, may also serve to prevent the lid portion 220 from rotating in the horizontal direction.

The safety guide portion 223 may be formed to protrude at a certain height along the edge of the bottom surface of the lid portion 220, but as shown, the protruding height is gradually reduced from the side away from the hinge joint toward the hinge joint. The bottom surface may be formed to be inclined.

The cut portion 225 is rotatably coupled to the inner bottom surface of the hopper 210 and rotates inside the hopper 210 by receiving rotational force from the screw 230 located inside the juice drum 280. The juice material introduced inside is cut and stirred, and the cut juice material is supplied into the juice drum 280 located below the hopper 210 through the discharge hole 217 formed on the bottom surface of the hopper 210.

In the present invention, the cutting unit 225 rotates inside the hopper 210 with both sides supported between the bottom and top of the hopper 210, and does not cut the juice material, but is supported on one side at the bottom of the hopper 210. Since the juice material is cut in this state, an open space free from interference is formed above the cut portion 225 in the hopper 210. Accordingly, since the entire upper side of the cutting unit 225 forms an open space, large-sized juice materials such as whole fruits can be inserted into the hopper 210 and cut.

Next, the structure in which the cut part 225 is rotatably coupled to the bottom surface of the hopper housing 215 and rotates the cut part 225 by receiving rotational force from the screw 230 is explained with reference to FIGS. 8 and 9. I decided to do it.

A bushing portion 218 is disposed in the connection hole 2152 formed on the bottom of the hopper housing 215. The radial inner and outer surfaces of the bushing portion 218 are formed in a cone shape whose radius decreases toward the top, and are protruded in the form of a circular flange at the bottom to form a step 2181. A cone-shaped inclined surface and a locking protrusion 2158 are formed on the inner surface of the connection hole 2152 to correspond to the shape of the outer surface of the bushing portion 218. At this time, the bushing portion 218 may be formed integrally with the bottom surface of the hopper housing 215 by insert injection.

The connection hole 2152 and the bushing portion 218 are in contact with each other in the form of a cone whose radius decreases toward the top, so that even if an upward force is applied when the screw 230 rises due to a load during the juicing process, the hopper bottom surface and the bushing Since the coupling force between the parts 218 can be firmly maintained, deformation due to floating of the screw 230 can be prevented.

A hole is formed in an open top and bottom shape inside the bushing portion 218, and the power transmission portion 219 is inserted. When the screw 230 rotates with the upper rotating shaft 233 of the screw 230 inserted into the power transmission unit 219, the power transmission unit 219 inserted inside the bushing unit 218 is inserted into the bushing unit 218. ) Since it rotates internally, the bushing portion 218 is preferably formed of a material that is not easily deformed by friction that occurs when the power transmission portion 219 rotates.

The power transmission part 219 may be composed of a coupling part 2191 and an upper protrusion 2195. To correspond to the shape of the inner surface of the bushing portion 218, which is formed in a cone shape whose radius decreases toward the top, the outer surface of the coupling portion 2191 is also formed in a cone shape whose radius decreases toward the top. The interior of the coupling portion 2191 is formed with a shaft hole 2192 into which the upper rotation shaft 233 of the screw 230 is inserted. The upper rotation axis 233 of the screw 230 may be formed as a square shaft, and the shaft hole 2192 may be formed as a square shaft hole. In this embodiment, the upper rotation axis 233 of the screw 230 is formed as a hexagonal shaft, and the shaft hole 2192 is formed as a 12-angle shaft hole 2192, which is a multiple of 2. The shaft hole 2192 formed in the power transmission unit 219 may also be formed as a hexagonal shaft hole to correspond to the shape of the upper rotation shaft 233 of the screw 230, but in the case where it is formed as a 12-angle shaft hole, which is a multiple of 2. The coupling between the upper rotating shaft 233 of the screw 230 and the power transmission unit 219 can be made easier. Furthermore, coupling can be made easier by forming an inclined surface that expands the size of the axial hole at the entrance of the 12-angled axial hole. Therefore, in order to facilitate the coupling between the two members, when the upper rotation axis 233 of the screw 230 is formed as an n-shaped square axis, the shaft hole formed in the coupling part 2191 of the power transmission unit 219 is It can be formed with a 2n square axial hole.

At this time, when the power transmission unit 219 is fastened to the bushing unit 218, the bottom of the power transmission unit 219 is positioned above the bottom of the hopper 210.

An upper protrusion 2195 is formed on the upper part of the coupling portion 2191. When the power transmission portion 219 is inserted into the bushing portion 218 from the bottom of the hopper housing 215, the upper protrusion 2195 is a bushing portion ( It protrudes above the upper surface of the bushing portion 218 through the hole of 218 and is located inside the hopper 210. At this time, the upper protrusion 2195 is formed in a quadrangular shape, and a rectangular groove 2251 is formed on the bottom of the cut part 225 in a corresponding shape, so that the cut part 225 can be coupled to the upper protrusion 2195. there is. The shape of the upper protrusion 2195 and the corresponding shape of the groove 2251 on the bottom of the cut portion 225 are not limited to this and may be modified in various ways, such as a cross shape or a spline shape.

Insert the screw 2199 through the axial hole 2192 of the coupling part 2191 and screw it into the screw hole 2196 that penetrates the upper protrusion 2195 and the screw groove 2252 formed at the rotation center of the bottom of the cut part 225. By combining, the cut portion 225 can be firmly fixed to the upper protrusion 2195.

A step is formed at the top of the shaft hole 2192 formed on the inner surface of the coupling portion 2191 to limit the insertion depth of the upper rotation shaft 233 of the screw 230, and the head of the screw 2199 is located at the top based on the step. is located.

As described above, when the inner surface of the bushing part 218 and the outer surface of the power transmission part 219 come into contact with each other in a cone shape whose radius decreases toward the top, the screw 230 receives a rising force. Avoid injury to the screw 230. Furthermore, as the power transmission unit 219 receives force directed upward, the power transmission unit 219 and the bushing unit 218 become more concentric, so mechanical stability can be improved.

The cutting unit 225 is rotatably coupled to the bottom surface of the hopper 210 and rotates by receiving rotational force from the screw 230 through the power transmission unit 219 to cut and stir the juice material.

The cutting unit 225 includes a hook-shaped cutting edge 226 and a horizontal cutting edge 227 and may be driven. At this time, the hook-shaped cutting edge 226 and the horizontal cutting edge 227 may be formed as one piece.

The hook-shaped cutting edge 226 extends upward in the form of a spiral in the rotation direction of the cutting portion 225 from the rotation center. The upper end of the hook-shaped cutting edge 226 is preferably formed in a sharp hook shape with a cross-section that becomes smaller toward the end. The hook-shaped cutting blade 226 facing upward in the form of a hook is mainly responsible for cutting and crushing the juice material introduced to the top. At this time, the radially inner surface of the hook-shaped cutting edge 226 is formed with an inclined curved surface 2261 so that it faces radially outward toward the bottom, so that the hook-shaped cutting edge 226 rotates and the hook-shaped cutting edge 226 ) allows the crushed juice material to move smoothly downward along the curved surface.

The higher the height of the top of the hook-shaped cutting blade 226, the higher the crushing effect, and it is preferably formed at least higher than the height of the top surface of the horizontal cutting blade 227. In addition, the radial length of the hook-shaped cutting edge 226 is preferably formed as long as possible in the radial direction within a range that does not interfere with the inner surface of the hopper 210.

The horizontal cutting edge 227 extends horizontally from the bottom surface of the hopper 210. The horizontal cutting edge 227 is preferably formed to have a predetermined thickness in the vertical direction. At this time, the end of the horizontal cutting blade 227 may be formed so that its height gradually decreases. The horizontal cutting blade 227 serves to secondarily crush the juice material that has been crushed on the hook-shaped cutting blade 226 by the blade formed at the top and moved downward, and at the same time, the horizontal cutting blade 227 is cut at a predetermined level. As it is formed to have a thickness, the juice material located on the bottom surface of the hopper 210 is pushed so that it can be smoothly discharged through the discharge hole 217. This is because if the thickness of the horizontal cutting blade 227 is thin, the juice material located on the bottom surface of the hopper 210 cannot be pushed and may spin around.

The horizontal cutting blade 227 is preferably formed to extend from the rotation center of the cutting portion 225 in a direction 180 degrees opposite to the direction in which the hook-shaped cutting blade 226 extends, but is not necessarily limited to this. At this time, the horizontal cutting blade 227 is preferably curved in a direction opposite to the rotation direction of the cutting portion 225.

Like the hook-shaped cutting edge 226, the horizontal cutting blade 227 is preferably formed as long as possible in the radial direction within a range that does not interfere with the inner surface of the hopper 210.

A bottom groove 2271 dug to a predetermined depth may be formed on the bottom of the horizontal cutting edge 227. This may serve to reduce the weight of the cut portion 225.

As described above, a rectangular groove 2251 may be formed at the rotation center of the bottom of the cut portion 225 to correspond to the shape of the upper protrusion 2195 of the power transmission unit 219, which is formed in a square shape, and a rectangular groove ( A screw groove 2252 into which a screw is fastened is formed above 2251). By fastening the cut part 225 using a screw 2199 with the square groove 2251 inserted into the upper protrusion 2195 of the power transmission unit 219, the cut part 225 is formed on the inner bottom surface of the hopper housing 215. (225) can be rotatably mounted.

As shown in FIG. 9, at least one first inner protrusion 2155 may be formed on the inner surface of the hopper 210, protruding long inward in the vertical direction. The first inner protrusion 2155 interacts with the hook-shaped cutting blade 226, and the juice material inserted into the hopper 210 is caught on the first inner protrusion 2155 and serves to hold the hook-shaped cutting blade (226). 226) to improve crushing efficiency. If the first inner protrusion 2155 is not present, the juice material rotates with the hook-shaped cutting blade 226 and may not be cut. However, the juice material can be easily crushed by rotating the hook-shaped cutting blade 226 while the juice material is supported in the rotation direction by the first inner protrusion 2155. Therefore, it is preferable that the first inner protrusion 2155 protrudes inward at a relatively large height compared to the second inner protrusion 2157, which will be described later, so as to support the juice material in the radial direction.

One side of the outer peripheral surface of the hopper 210 is indented inside by the above-mentioned interference prevention groove 2154, and as shown, the first inner protrusion 2155 can be formed together with the interference prevention groove 2154.

At this time, the lower end of the inner protrusion is preferably formed to be located at the upper end of the hook-shaped cutting edge 226. As shown in (a) of FIG. 9, the lower end of the first inner protrusion 2155 is a hook-shaped cutting part. A through groove 2156 penetrating both sides may be formed in the shape of the upper end of the hook-shaped cut portion 225 so that the upper end of 225 can pass. By forming the lower end of the first inner protrusion 2155 in this way, it is possible to position the lower end of the first inner protrusion 2155 and the upper end of the hook-shaped cutting edge 226 at a position where they overlap each other. At the same time, the radial length of the hook-shaped cutting edge 226 can be made larger, thereby improving cutting efficiency.

Additionally, at least one second inner protrusion 2157 may be formed on the inner surface of the hopper 210, protruding radially inward from the upper part of the position where the end of the horizontal cutting blade 227 is located. The second inner protrusion 2157 may interact with the horizontal cutting edge 227. As the horizontal cutting blade 227 rotates, some of the juice material located on the bottom surface of the hopper 210 is pushed and flows into the discharge hole 217, and some gradually moves outward in the radial direction due to centrifugal force. At this time, a problem may occur in which the juice material located on the upper part of the horizontal cutting blade 227 does not flow into the discharge hole 217 and instead spins around on the upper part of the horizontal cutting blade 227. At this time, the juice material pushed out of the upper part of the horizontal cutting blade 227 by centrifugal force may collide with the second inner protrusion 2157 and fall off from the horizontal cutting blade 227.

In this embodiment, the second inner protrusion 2157 is formed below the first inner protrusion 2155. In addition, a discharge hole 217 is formed perpendicularly below the first inner protrusion 2155 and the second inner protrusion 2157, so that the discharge hole 217 is cut and separated through the first inner protrusion 2155 and the second inner protrusion 2157. The juice material falls vertically so that it can be supplied directly into the juice drum 280 through the discharge hole 217.

Hereinafter, the screw 230, juice separation drum 260, and juice drum 280, which constitute the juice unit 200 and are located below the hopper 210, will be described. First, the screw 230 will be described with reference to FIGS. 16 to 19.

Figure 16 is a perspective view of the screw shown in Figure 4, Figure 17 is a side view of Figure 16, Figure 18 is a perspective view showing the bottom of the screw shown in Figure 16, and Figure 19 is a perspective view showing the screw shown in Figures 16 to 18. This is a modified example of a screw.

The screw 230 is mounted inside the juice separation drum 260, receives rotational force from the drive shaft 130 of the main body 100, rotates, and compresses and crushes the juice material together with the juice separation drum 260.

The screw 230 may be formed to include a screw body 231 and a screw thread 232 protruding in the form of a spiral on the outer surface of the screw body 231.

As shown, the screw body 231 may be divided into an upper part and a lower part centered around the part with the largest radius of the screw body 231. At this time, the upper part forms a cutting section that additionally cuts the juice material input from the hopper 210, and the lower part forms a juice section that generates juice by pressing the juice material in earnest below the cutting section.

The lower part of the screw body 231 is formed so that the radius becomes gradually smaller as it goes downward. By making the radius smaller as it goes downward, it is possible to form a space where the residue separated by juice is located. However, the shape of the lower part of the screw body 231 is not limited to this and, for example, may be formed straight downward without changing the radius.

In addition, the upper part of the screw body 231 is formed so that the radius gradually decreases as it goes up, and as shown, the radius change according to the height change is greater than that of the lower part of the screw body 231. The tip of the screw body 231 has the smallest radius and is formed so that the radius gradually increases as it goes downward. According to this shape, large-sized materials can be transported while being gradually reduced in size by compression and crushing. creates space. In other words, since the diameter of the upper part of the screw body 231 gradually increases downward, the size of the space through which the material formed by the screw body 231 together with the screw thread 232 is transported gradually increases along the material transport direction. becomes smaller. That is, the material is compressed and pulverized by the rotation of the screw 230, and its size gradually decreases, and it moves down the screw 230 along the gradually decreasing transport space along the screw thread 232 formed in the downward direction. It will be done.

The screw thread 232 is formed to protrude in the form of a spiral on the outer peripheral surface of the screw body 231, and the juice object is squeezed into the narrow gap between the screw 230 and the juice separation drum 260 by the screw thread 232. and is transported downward. At this time, the screw thread 232 is preferably protruded so as to contact or be close to the juice separation drum 260. As described above, the radius of the upper part of the screw body 231 becomes smaller as it goes upward, so the protruding height of the screw thread 232 increases as it goes towards the upper part of the screw body 231.

The screw thread 232 may be formed as one or a plurality of screw threads. In the present invention, one screw thread (the first screw thread 232-1) of the plurality of screw threads 232 is located at the top of the screw body 231. A single-edged screw 230 that extends to form a single blade 2321 at the top of the screw body 231 can be used. Since a lot of load is applied when using a double-edged screw in which two screw threads extend symmetrically to the top of the screw body 231, the present invention uses a single-edged screw 230, but is not necessarily limited thereto.

At this time, in the present invention, the radius of the outer blade 2321 at the top of the screw body 231 may be formed to protrude outward to be larger than the longest radius of the screw body 231. In this way, while maintaining the size of the screw body 231 as before, the radius of the single blade 2321 is made larger than the longest radius of the screw body 231, thereby securing a wider space for the juice material to be input from the top. I can do it. This allows the juice material divided in the upper hopper 210 to be more smoothly introduced into the screw 230.

As shown, a second screw thread 232-2 may be formed starting from the top of the screw body 231, which is the juice section, and spiraling downward, and the first screw at the bottom of the screw body 231. Another plurality of third screw threads 232-3 may be formed between the screw thread 232-1 and the second screw thread 232-2. Therefore, the width between neighboring screw threads 232 formed in the screw body 231 is formed to have a relatively wide gap at the upper part of the screw body 231, and a plurality of screws are formed at the lower part of the screw body 231. It is formed to have a relatively narrow gap by the screw thread 232. That is, the cutting section at the top of the screw 230 mainly performs the function of crushing large-sized juice objects, and the juice section at the bottom of the screw 230 performs the juice function through crushing and compression by rotation of the screw 230. This can mainly be done.

Additionally, a plurality of debris guide jaws 235 protruding outside the radius of the lower end of the screw body 231 may be formed in the circumferential direction. The debris guide jaw 235 performs the function of sweeping downward the debris separated by juice and transported below the juice separation drum 260 when the screw 230 rotates. In this way, the debris caught under the juice separation drum 260 can be smoothly removed by the debris guide jaw 235 formed on the outer peripheral radius of the lower end of the screw 230, thereby further increasing the juice extraction efficiency.

The upper rotating shaft 233 of the screw 230, which protrudes above the top of the screw body 231, is formed as a square shaft and is coupled to the square shaft hole 2192 of the power transmission portion 219 to transmit power to the cutting portion 225. do.

In addition, the lower rotating shaft 234 of the screw 230, which protrudes downward from the hollow interior of the screw body 231, is formed as a square shaft hole and is inserted into the square drive shaft 130 protruding from the upper part of the main body 100. and receives power from the motor 1001. As described in the coupling structure between the upper rotation shaft 233 of the screw 230 and the power transmission unit 219, the drive shaft 130 is formed as an n-angle rectangular shaft, and the lower rotation shaft 234 of the screw 230 is formed as a 2n angle shaft. It can also be formed with a square shaft hole to facilitate coupling between the two members. For example, when the drive shaft 130 is formed as a hexagonal shaft, the lower rotation shaft 234 of the screw 230 may be formed as a 12-square shaft hole.

A gripping portion 236 may be formed on the top of the screw body 231. The grip portion 236 may be formed to protrude from the top of the screw body 231 at a predetermined horizontal angle with the single blade 2321, which allows the user to use the screw 230 mounted in the juice drum 280 for reasons such as cleaning. This is so that it can be easily removed by holding it together with the outer blade (2321).

Figure 19 shows a modified example of the screw 230 described above. In this embodiment, a circular ring or belt is formed at the boundary between the cutting section and the juice section and the upper and lower parts of the screw 230. An over-injection prevention rib 239 is formed that protrudes from the screw body 231 along the circumferential direction to a predetermined thickness.

The overfill prevention rib 239 is used to prevent overloading of the juice section by the pressure of the screw 230 when a large amount of the juice material in the cutting section is supplied to the juice section at once. The overfill prevention rib 239 reduces the gap between the screw 230 and the juice separation drum 260, thereby preventing a large amount of juice material from being input into the space between them at once.

Since the configuration of the remaining screw 230 except for the over-injection prevention rib 239 is the same as described above, description of the same configuration will be omitted.

Hereinafter, the juice separation drum 260 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 20 and 21.

Figures 20 and 21 are an exploded perspective view of the juice separation drum shown in Figure 4, and Figure 22 is a partially cut away combined perspective view of the juice separation drum shown in Figure 21.

As shown, the juice separation drum 260 according to the present invention can be constructed by combining the inner module 240 and the outer module 250. Here, the inner module 240 and the outer module 250 may be made of a material such as polyetherimide (PEI).

The inner module 240 has a generally cylindrical shape and may be open at the top and bottom. Here, the inner module 240 includes a plurality of inner plate portions 241, and a plurality of slits 242 are formed long in the vertical direction by the plurality of inner plate portions 241.

Here, the plate portion 241 is named for convenience in explaining the design. When dividing the cylindrical module into a hole portion in which the slit 242 is formed and a plate portion in which the slit 242 is not formed, the plate portion in which the slit 242 is not formed is The plate part is defined as “plate part (241)”.

At this time, the width of the slit 242 on the upper side of the slit 242 may be smaller than the width of the slit 242 on the lower side. That is, the width of the slit 242 may become narrower toward the top.

Additionally, a first rib jaw 244 may be formed to protrude from the inner peripheral surface of the inner module 240 along the vertical and longitudinal directions. The first rib jaw 244 compresses or crushes the material by interaction with the screw thread 232 as the screw 230 rotates. If the first rib jaw 244 is not present, the juice object may not go down and stagnate, or the compression force or grinding force may be low or not generated. At this time, the first rib jaw 244 may be formed on one side of the slit 242 of the inner module.

Additionally, a predetermined number of second rib jaws 243 that protrude long along the vertical and longitudinal directions may be formed on the inner surface of the inner module 240. The second rib jaw 243 transports the juice material inputted into the juice separation drum 260 to the lower part and performs the function of pulverizing the object to be juiced. The second rib jaw 243 may perform the function of reinforcing the rigidity of the inner module 240 and may serve the function of guiding the juice object into the juice separation drum 260. In addition, the second rib jaw 243 can perform the function of adjusting the position of the screw 230 and adjusting the juice space.

The protruding height of the second rib jaw 243 may be formed to have the same height from the top to the bottom of the inner module 240, but is preferably formed to gradually decrease from the top to the bottom of the inner module 240. It can be. In addition, the second rib jaw 243 is formed to slope downward from the top to the bottom of the inner module 240, and a stepped portion 2431 protruding toward the screw 230 is formed in the middle portion. You can. The position, number, or protruding height of the step portion 2431 may be modified in various ways depending on the shape of the screw 230 and the design conditions of the screw thread 232. The number and arrangement of the second rib jaws 243 may be varied as needed in consideration of design conditions and juice extraction efficiency. In the embodiment of the present invention, the formation direction of the second rib jaw 243 has been described as an example of being formed perpendicular to the vertical direction of the inner module 240, but the scope of the present invention is not limited thereto.

At this time, the first rib jaw 244 is formed on the lower inner surface of the inner plate portion 241 (more specifically, one side of the slit 242), and the second rib jaw 243 is formed on the inner surface of the inner plate portion 241. It is formed entirely from top to bottom.

As shown, the upper end of the inner module 240 is formed with an expansion portion 245 whose radius increases toward the top. Since the upper end of the inner module 240 is expanded in a trumpet shape, the outer blade 2321 at the top of the screw 230 inside the expanded part 245 can rotate without interference.

In addition, a material inflow guide portion 246, which is a curved portion that gradually faces inward along the rotation direction of the screw 230, may be formed on one side of the expansion portion 245. If there is no material inflow guide part 246, a problem may occur where the juice material does not flow downward and spins around with the single blade 2321 on the expansion part 245, when the juice material rotates with the single blade 2321. By contact with the material inflow guide portion 246, it can be induced to break away from the single blade 2321 and move downward. Furthermore, by forming a smooth inclined surface, the problem of material being caught in the material inlet guide portion 246 can be solved. The upper surface of the material inflow guide portion 246 is formed so as not to interfere with the bottom surface of the single blade 2321.

A predetermined number of fitting protrusions 247 are formed on the bottom surface of the inner module 240. When coupling the inner module 240 and the outer module 250, the fitting protrusions 247 are formed on the outer module 250. ) is inserted into the fitting groove portion 258 formed on the bottom of the frame, thereby coupling the two members 240 and 250.

Next, the outer module 250 will be described. The outer module 250 has a generally cylindrical shape and includes an outer plate 251 with open upper and lower sides and a rib 252 protruding from the inner surface of the outer plate 251.

The outer plate portion 251 accommodates the inner module 240 inside, and the outer module 250 and the inner module 240 can be detachably coupled to each other. That is, when the outer module 250 is combined with the inner module 240, it can be combined to accommodate and surround the inner module 240 inside. At this time, the outer module 250 may surround and support the inner module 240.

When the outer module 250 and the inner module 240 move up and down and are coupled, the ribs 252 are inserted into and coupled to the slit 242 below the slit 242 of the inner module 240. At this time, a fine gap is formed between the slit 242 and the rib 252, and the juice generated inside the juice separation drum 260 can be discharged to the outside through the gap.

As such, in this embodiment, the slit 242 of the inner module 240 and the rib 252 of the outer module 250 are combined to discharge juice through the gap between the slit 242 and the rib 252. Since it forms a ball, it is very easy to clean.

At this time, the ribs 252 may be formed to correspond to the shape of the slit 242 described above. The width of the ribs 252 becomes narrower toward the top, so that the width of the ribs 252 on the upper side is greater than that on the lower side. It may be smaller than the width of the rib 252.

When the outer module 250 and the inner module 240 are moved up and down and coupled by the shape of the rib 252 and the slit 242 as described above, the width is relatively lower at the lower part of the relatively wide slit 242. The outer module 250 and the inner module 240 can be easily combined by inserting the upper part of this small rib 252.

Additionally, a plurality of juice discharge holes 253 may be formed at the lower end of the outer plate portion 251.

In this way, the juice formed inside the juice separation drum 260 formed by combining the inner module 240 and the outer module 250 is formed through the slit 242 of the inner module 240 and the rib 252 of the outer module 250. ) It can be discharged to the outside of the juice separation drum 260 by passing through the slit hole, which is a fine gap formed between the juice, and the juice discharge hole 253 formed in the outer module 250.

At this time, it is preferable that the gap formed between the slit 242 and the rib 252 be formed so that the width of the gap gradually increases in the radial direction to facilitate discharge of juice. For example, when the width of the slit 242 gradually increases in the radial direction, the size of the slit gradually increases in the radial direction.

Furthermore, the width of the gap is made smaller as it goes down in the longitudinal direction, so as to prevent the residue generated by being pulverized more finely as it goes down from being discharged through the gap, and strong pressure by the screw 230 is used. It is desirable to support it.

At the top of the outer module 250, a predetermined number of drum fixing parts 259 are formed that protrude in the horizontal direction, which are inserted into the drum fixing groove 2802 formed on the top of the juice drum 280, which will be described later, and the juice drum ( The position of the juice separation drum 260 can be fixed within 280).

In addition, a predetermined number of fitting grooves 258 are formed on the bottom surface of the outer module 250. When the inner module 240 and the outer module 250 are coupled, the fitting protrusion 247 is formed on the outer module 250. It is inserted into the fitting groove 258 formed on the bottom of 250 to couple the inner module 240 and the outer module 250.

In this embodiment, the juice separation drum 260 is used to form an outflow hole by combining the inner module 240 and the outer module 250, but the previously widely known net drum with a plurality of circular mesh holes formed on the drum surface is used. It is okay to use . Additionally, in this embodiment, a rib 252 is formed on the outer module 250 and a slit 242 is formed on the inner module 240 to discharge juice when the inner module 240 and the outer module 250 are combined. An outlet hole is formed, but the juice is discharged by forming the above-described rib 252 on the inner surface of the juice drum 280 and inserting the inner module 240 without forming a separate outer module 250. An outflow hole may be formed.

Hereinafter, the juice drum 280 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 23 to 27.

Figure 23 is a partially cut perspective view of the juice drum shown in Figure 4, Figure 24 is a perspective view of the juice drum showing the juice stopper opened in Figure 23, and Figure 25 is a rear view of the juice stopper shown in Figure 26. It is a perspective view showing, FIG. 26 is a perspective view showing the bottom of the juice drum shown in FIG. 23, and FIG. 27 is a perspective view of the lower part of the waste discharge port shown in FIG. 26.

The juice drum 280 has an overall shape of a cylindrical container and accommodates a juice separation drum 260 and a screw 230 inside, and a hopper 210 can be fastened to the top as described above.

At the center of the bottom of the juice drum 280, a waterproof cylinder 281 with a through hole 2805 is formed to protrude upward, and the lower rotating shaft 234 of the screw 230 is inserted through the through hole 2805 to form a driving shaft. It can be combined with (130). The waterproof cylinder 281 is formed to protrude upward to prevent juice from flowing into the drive shaft 130 through the through hole 2805. In addition, a packing ring 2811 made of a material such as rubber or silicon is inserted into the edge of the through hole 2805 to more effectively block juice from flowing into the drive shaft 130. In the present invention, as shown, double packing that is fixed between the upper and lower sides of the upper part of the waterproof cylinder 281 and packs the upper and lower sides together can be used.

At the outer lower part of the juice drum 280, a juice outlet 285 through which juice is discharged and a residue outlet 284 through which residue is discharged may be disposed at positions spaced apart from each other.

A plurality of binding protrusions 2801 are formed on the inner edge of the upper portion of the juice drum 280. The binding protrusions 2174 formed on the outer edge of the lower part of the hopper housing 215 described above are positioned between the binding protrusions 2801. Then, the juice drum 280 and the hopper 210 can be coupled by placing the engaging protrusion 2174 below the binding protrusion 2801 by slightly pressing and rotating the hopper 210 downward. At this time, the coupling protrusion 2801 has a rotation stopper 2803 at an end in the fastening direction to prevent further rotation of the coupling protrusion 2174 and maintain coupling between the two members 210 and 280.

In addition, when the coupling protrusion 2174 of the hopper 210 is placed in the space between the two neighboring coupling protrusions 2801, the space between the two coupling protrusions 2801 is maintained so that the coupling protrusion 2174 can sufficiently move left and right. It is desirable to secure it widely. As described above, in the present invention, since the lower rotating shaft 234 of the screw 230 is composed of an n-shaped square shaft and the shaft hole of the power transmission unit 219 is composed of a 2n-shaped square shaft hole, the user can use the hopper 210 This is to secure rotation space so that the power transmission unit 219 can be positioned to be held and rotated and inserted into the lower rotation shaft 234 of the screw 230.

In addition, a fixing groove 2804 is formed on the outside of the bottom of the juice drum 280, and is combined with the fixing protrusion 122 formed on the upper surface of the main body 100, from which the drive shaft 130 protrudes, to produce juice on the upper part of the main body 100. Allows the drum 280 to be fixed.

A first circular protrusion 282 is formed on the bottom surface of the juice drum 280 and protrudes in a circular shape at a position spaced a predetermined distance from the inner surface of the juice drum 280. The outer module 250 of the juice separation drum 260 is seated on the inner surface of the first circular protrusion 282. At this time, the juice separated from the juice separation drum 260 is stored on the circular bottom surface between the inner surface of the juice drum 280 and the first circular protrusion 282 and can be discharged through the juice outlet 285. . It is preferable that the circular bottom surface is inclined toward the juice outlet 285 so that the juice flows toward the juice outlet 285 due to its own weight.

In addition, a second circular protrusion 283 protruding in a circular shape is formed around the waterproof cylinder 281 on the bottom surface of the juice drum 280. The inner ring 237 of the screw 230 is seated in the space between the second circular protrusion 283 and the waterproof cylinder 281, and the outer ring 238 is seated on the outer side of the second circular protrusion 283 to secure the screw. Fix the position of (230).

At this time, in the present invention, an insert ring 2381 made of stainless steel is formed on the inner surface of the outer ring 238 to reduce wear caused by friction between the outer ring 2381 and the second circular protrusion 283.

A residue discharge hole 2806 may be formed on one side of the outer bottom surface of the second circular protrusion 283 so that the residue separated in the juice separation drum 260 can be discharged. The residue discharge hole 2806 is connected to the residue discharge port 284 so that the residue inside the juice separation drum 260 can be discharged to the outside.

A waste packing 287 made of an elastic material such as rubber or silicon may be formed in the waste discharge hole 2806. The residue packing 287 on the bottom of the juice drum 280 can be fixed at one end and freely rotated at the other end. When no external force is applied from the inside of the juice separation drum 260 to the outside, the residue packing 287 closes the residue discharge hole 2806, and when an external force is applied, it is elastically deformed to open the residue discharge hole 2806. do. Accordingly, the residue inside the juice separation drum 260 reaches the bottom surface of the juice drum 280 and is discharged through the residue discharge port 284 by pushing the residue packing 287.

At this time, in the present invention, the waste discharge port 284 may not be formed in a fixed form on one side of the juice drum 280, but may be formed in a structure that opens and closes by rotation.

As shown, the portion forming the upper end of the waste discharge hole 2806 and the waste discharge port 284 where the waste packing 287 is fixed is formed integrally with the main body 100 of the juice drum 280, and the waste discharge port ( The lower part of the waste discharge port 2842, which forms the lower part of the juice drum 284, is rotatably hinged to the bottom of the juice drum 280. A packing ring 2844 is installed on the upper surface of the bottom of the waste discharge port 2842 to surround the waste discharge hole 2806 to prevent juice or waste from leaking to the outside. A 'ㄷ' shaped fixing ring 2843 is rotatably coupled to one end of the bottom of the waste discharge port 2842.

Therefore, the lower part of the waste discharge port 2842 is rotated to form the upper part of the waste discharge port 284 in a state in which it is brought into close contact with the bottom surface of the juice drum 280, and a fixing ring is attached to the portion 2849 that protrudes outward from the juice drum 280. When (2843) is rotated and fixed, a waste discharge port 284 is formed through which waste is discharged through the waste discharge hole 2806.

Conversely, by rotating the fixing ring 2843 to release the coupling and rotating the lower part of the waste discharge port 2842 downward, the waste packing 287 can be exposed to the outside, and the user can use the waste packing 287 and the waste discharge port ( 284) The inner side can be cleaned.

A juice stopper 286 is rotatably coupled to the end of the juice outlet 285. The juice outlet 285 can be opened and closed by rotating the juice stopper 286, which is rotatably hinged to the upper part of the juice outlet 285. Packing 2861 is attached to the inside of the juice stopper 286 to prevent juice from leaking out of the juice outlet 285.

Hereinafter, the main body 100 according to an embodiment of the present invention will be described.

FIG. 28 is an exploded perspective view of the main body shown in FIG. 2, FIG. 29 is a perspective view of the open/close sensing unit shown in FIG. 3, FIG. 30 is an separated perspective view of the floating motor shaft shown in FIG. 28, and FIG. 31 is an operation of the floating motor shaft. This is a partially cut away perspective view of the floating motor shaft illustrating .

The main body 100 may include a lower main body 120 and an upper main body 110.

The lower body 120 is supported from the bottom, and a drive shaft 130 that rotates at reduced speed by the motor 1001 is protruding from the upper surface of the lower body 120. When the juice unit 200 is coupled to the drive shaft 130, the lower rotation shaft 234 of the screw 230 is inserted to transmit the rotational force of the drive shaft 130 to the screw 230.

A power cable 102 is connected to one side of the lower part of the lower body 120 to receive power from the outside. Inside the lower body portion 120, a motor 1001 driven from an external power source and a deceleration unit 1002 formed of a plurality of gears to reduce the rotational speed of the motor 1001 and transmit it to the drive shaft 130 may be formed. there is.

The upper main body 110 is formed to protrude upward from one side of the lower main body 120 and supports the outer surface of the juicer 200 when the juicer 200 is coupled to the lower main body 120. . A control button 104 may be formed on the outer surface of the upper main body 110 to control the operation of the juicer.

As shown, a rotation prevention key 112 may be formed on the inner surface of the upper main body 110 to protrude to a predetermined length in the longitudinal direction. A rotation prevention key groove 2159 into which the rotation prevention key 112 is inserted is formed on the outer surface of the hopper 210 to correspond to the rotation prevention key 112. The rotation prevention key groove 2159 may be formed integrally below the interference prevention groove 2154 as shown in FIG. 5.

When the juice extraction unit 200 is coupled to the main body 100, the rotation prevention key 112 is inserted into the rotation prevention key groove 2159 and coupled. Therefore, the circumferential position of the juice extraction unit 200 can be fixed by the combination structure of the rotation prevention key groove 2159 and the rotation prevention key 112. In addition, when the screw 230 rotates in reverse, the bond between the juice drum 280 and the hopper 210 may be released, and this is prevented by preventing the rotation of the hopper 210 by the coupling structure.

As described above, in the present invention, for the safety of the user, the hopper 210 cannot be attached to the upper part of the juice drum 280 when only the juice drum 280 is seated on the main body 100, and the juice drum 280 The juice extraction unit 200 can be coupled to the main body 100 only when the hopper 210 is attached. The hopper 210 and the juice drum 280 are fixed by a combination between the coupling protrusion 2174 and the coupling protrusion 2801. When only the juice drum 280 is seated on the main body 100, the coupling protrusion 2174 If an attempt is made to couple the juice drum 280 and the hopper 210 by rotating the binding protrusion 2801, the positions of the anti-rotation key groove 2159 and the anti-rotation key 112 do not match, so they do not engage. In addition, when fixing the hopper 210 to the upper body 110 by aligning the positions of the anti-rotation key groove 2159 and the anti-rotation key 112, the coupling protrusion 2174 and the coupling protrusion 2801 are aligned and coupled to each other. The coupling protrusion 2174 and the coupling protrusion 2801 are located so that it is impossible. Therefore, in the present invention, the juicer 200 can be coupled to the main body 100 only when the hopper 210 is coupled to the upper part of the juice drum 280.

A waste discharge connection hole 113 communicating with the waste discharge port 284 is formed on one side of the bottom of the upper main body 110. Additionally, a waste cup 125 may be separately mounted on one side of the lower main body 120. When the waste cup 125 is coupled to the lower body 120, the waste discharged through the waste discharge port 284, the end of which is inserted into the waste discharge connection hole 113, can be stored.

An opening/closing sensing unit 115 that detects opening/closing of the lid 220 may be fixedly installed inside the upper body 110.

As shown in FIG. 29, the opening/closing sensing unit 115 may be formed as a micro switch, and a second magnet 1102 is fixed to the end of the rotating bar 1151 extending outward. The second magnet 1102 forms a magnetic force with the first magnet 2211 fixed to the magnet arrangement portion 221 of the lid portion 220 described above. As the magnet arrangement part 221 rotates when the lid part 220 is opened and closed, the magnetic force between the first magnet 2211 and the second magnet 1102 (the magnetic force between the first magnet 2211 and the second magnet 1102) Depending on the polarity, the force (attractive or repulsive force generated) changes. As the magnetic force changes, the position of the second magnet 1102 changes. Therefore, the rotating bar 1151 moves according to a change in the position of the ruler 2 magnet 1102, so that the sensor unit in the open/close sensing unit 115 detects the open/closed state of the lid unit 220.

When the lid 220 is opened, the power supply to the motor 1001 is cut off to prevent the screw 230 from rotating.

A drive shaft 130 is protruding from the upper surface of the lower body 120, and the lower rotation shaft 234 of the screw 230 can be directly coupled to the drive shaft 130. However, in the present invention, the drive shaft 130 and the screw (230) A floating drive shaft is used to automatically couple between the lower rotation shafts (234). Hereinafter, the configuration of the floating drive shaft will be described in detail.

The drive transmission unit 310 is inserted and coupled to the drive shaft 130 that protrudes out of the main body 100. At this time, the drive shaft 130 is formed as a square shaft, and the drive transmission unit 310 is formed as a square shaft hole, so that the drive transmission unit 310 can be coupled to the drive shaft 130 by aligning them with each other, and further, the drive transmission unit 310 ) can rotate in conjunction with the drive shaft 130.

To describe the shape of the drive transmission unit 310 in more detail, the drive transmission unit 310 is formed of a rectangular shaft hole and includes a motor shaft coupling portion 311 and a motor shaft coupling portion 311 that are coupled to the rectangular drive shaft 130. It includes and is configured to include a screw coupling portion 312 formed as a square shaft at the top of the. The screw coupling portion 312 is aligned with the lower rotation axis 234 of the screw 230, which is formed as a square shaft hole.

At this time, the coil spring 315 is disposed between the drive transmission unit 310 and the drive shaft 130, so that the drive transmission unit 310 can elastically move in the axial direction on the drive shaft 130. In more detail, a spring insertion shaft 317 is formed extending upward from the top of the drive shaft 130, and a coil spring 315 can be inserted into the spring insertion shaft 317. At this time, a head portion 318 forming a step in the radial direction of the shaft may be further formed at the upper end of the spring insertion shaft 317. At this time, the spring insertion shaft 317 as described above may be composed of a screw 319 screwed to the upper end of the drive shaft 130.

In addition, a step hole 313 forming a step in the axis center direction is formed at the top of the square shaft hole of the motor shaft coupling portion 311, and the upper end of the spring insertion shaft 317 can be inserted into the step hole 313. there is. At this time, the step formed by the step hole 313 forms a downward limit of the drive transmission unit 310 by contacting the upper end of the drive shaft 130 when the drive transmission unit 310 moves downward.

Furthermore, a stepped locking groove 3111 is formed at the lower end of the motor shaft coupling portion 311, and a protruding locking protrusion 132 is formed at a predetermined position on the outer circumference of the drive shaft 130 to correspond to this, thereby transmitting the drive. When the unit 310 moves downward along the axis, the locking groove may contact the locking jaw 132 to form a downward limit for the drive transmission unit 310.

An inner protrusion 314 protruding inward toward the center of the axis may be formed in the middle of the step hole 313. The inner protrusion 314 contacts the upper end of the coil spring 315 and compresses the coil spring 315 when the drive transmission unit 310 moves downward along the axis. In addition, when the drive transmission unit 310 moves upward on the axis due to the elastic energy of the coil spring 315, the inner protrusion 314 contacts the head 318, and at this time, the head 318 is the drive transmission unit ( 310) forms an upper limit.

Additionally, a stopper 3101 may be formed at the top of the drive transmission unit 310 to block the opening. A screw 319 is inserted through the opening at the top of the drive transmission unit 310 and coupled to the drive shaft 130. A step is formed at the upper end of the drive transmission unit 310 and the stopper 3101 is seated on the step. The opening at the top of the drive transmission unit 310 can be shielded. At this time, the stopper portion 3101 prevents juice from penetrating between the head portion 318 of the screw 319 and the inner surface of the screw coupling portion 312.

Therefore, when there is no force pressing the drive transmission unit 310 from the top to the bottom, the drive transmission unit 310 moves to the upper limit by the elastic force of the coil spring 315, as shown in (a) of Figure 31. When the drive transmission unit 310 is pressed from the top to the bottom, the drive transmission unit 310 moves downward along the axis and is positioned at the lower limit as shown in (b) of Figure 31. I do it. At this time, the coil spring 315 is compressed and elastic energy is stored, and when the pressure on the upper part of the drive transmission unit 310 is released, the drive transmission unit 310 moves back to the upper limit by the elastic energy of the coil spring 315. It moves elastically to its position.

When seating the juice extractor 200 on the main body 100, when the lower rotating shaft 234 of the screw 230 is aligned with the screw coupling portion 312 of the drive transmission portion 310, the driving force of the drive shaft 130 Can be transmitted to the screw 230 by the drive transmission unit 310.

On the other hand, when the lower rotation axis 234 of the screw 230 does not match the screw coupling portion 312 of the drive transmission unit 310, the screw 230 presses the drive transmission unit 310, The drive transmission unit 310 moves downward along the axis.

In this state, when the motor 1001 is rotated, the drive transmission unit 310 coupled to the drive shaft 130 rotates, and the screw coupling portion 312 on the upper part of the drive transmission unit 310 is connected to the lower part of the screw 230. It is in a position aligned with the rotation axis 234. At this time, the drive transmission unit 310 elastically moves upward on the axis due to the elastic energy of the coil spring 315, and is automatically aligned with the lower rotation shaft 234 to transmit the driving force of the drive shaft 130 to the screw 230. It becomes possible.

The scope of rights of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the attached utility model claims. It is considered to be within the scope of the claims of the present invention to the various extents that can be modified by anyone with ordinary knowledge in the technical field to which the invention belongs without departing from the gist of the present invention claimed in the utility model claims.

100: body
1001: motor
1002: Reduction unit
102: power cable
104: Control button
110: upper body part
1102: second magnet
112: Rotation prevention key
113: Waste discharge connection hole
115: Open/close sensing unit
1151: Rotating bar
120: lower body part
122: Fixed protrusion
125: Waste cup
130: drive shaft
132: Stopper
200: Juicing unit
210: Hopper
215: Hopper housing
2151: Comb protrusion
2152: Connection hole
2153: Pin fixing hole
2154: Interference prevention groove
2155: 1st medial process
2156: Through groove
2157: 2nd medial process
2158: Stopper
2159: Anti-rotation keyway
216: handle part
2161: fastening hole
217: discharge hole
2171: slope
2172: slope
2174: Combination protrusion
218: Bushing part
2181: Danteok
219: Power transmission unit
2191: Joint
2192: Axis
2195: upper protrusion
2196: screw hole
2199: screw
220: Lid part
2201: Additional slot
2203: Pinhole
221: Magnet placement unit
2211: first magnet
222: Lid handle part
2221: Hook fastening part
2222: Fixed step
2224: Anti-rotation rib
223: Safety guide unit
224: pin
225: cutting part
2251: Home
2252: Screw groove
226: hooked cutting edge
2261: Inclined surface
227: horizontal cutting edge
2271: Bottom groove
230: screw
231: screw body
232-1: first screw thread
232-2: 2nd screw thread
232-3: Third screw thread
2321: Single-edged
233: upper rotation axis
234: lower rotation axis
235: Debris guide jaw
236: Holding part
237: Inner ring
238: Outer ring
2381: insert ring
239: Over-injection prevention rib
240: inner module
241: inner plate
242: slit
243: 2nd rib tuck
2431: Danteokbu
244: 1st rib tuck
245: extension part
246: Material inflow guide unit
247: Fitting protrusion
250: outer module
251: outer plate
252: rib
253: Juice discharge hole
258: Fitting groove
259: Drum fixture
260: Juice separation drum
280: Juicing drum
2801: Conjunctive protrusion
2802: Drum fixing groove
2803: Turn bump
2804: Fixed groove
2805: Through hole
2806: Waste discharge hole
281: Waterproof cylinder
2811: Packing ring
282: 1st circular protuberance
283: Second circular protuberance
284: Waste outlet
2842: Bottom part of waste discharge port
2843: Retaining ring
2844: Packing ring
285: Juice outlet
286: Juice stopper
2861: Packing
287: Waste packing
310: Drive transmission unit
3101: Stopper part
311: Motor shaft coupling part
3111: Hook groove
312: screw joint
313: Step ball
314: medial protrusion
315: coil spring
317: Spring insertion axis
318: header
319: screw

Claims (32)

A juice drum that accommodates a screw for squeezing the juice material therein;
A hopper coupled to the upper part of the juice drum and having a space for receiving the juice material; and
It includes a cutting part that rotates inside the hopper to cut the juice material introduced into the hopper,
A connecting hole is formed in the center of the bottom of the hopper to connect the screw and the cutting part to enable power transmission, and the cutting part is rotatably coupled to the screw through the connecting hole and located inside the juice drum. It rotates by receiving the rotational force of the screw, and the cut part is supported only on the lower side of the hopper, so that the upper side of the cut part in the hopper forms an open space into which the juice material is input,
Supplying the cut juice material into the juice drum located below the hopper through a discharge hole formed on the bottom of the hopper,
The cutting part
The upper part has a sharp hook-shaped cutting edge whose cross-section becomes smaller towards the end; and
It is formed to extend horizontally on the lower surface of the hopper and includes a horizontal cutting blade formed to have a predetermined thickness in the vertical direction to push the juice material toward the front of the rotation direction.
The height of the top of the hook-shaped cutting edge is formed to be at least higher than the height of the top surface of the horizontal cutting edge,
A juicer in which a first inner protrusion is formed to protrude from the inner surface of the hopper and support the juice material to interact with the hook-shaped cutting blade when the cutting portion rotates. delete delete delete According to claim 1,
The horizontal cutting blade is a juicer in which the horizontal cutting blade extends from the rotation center of the cutting portion in a position opposite to the direction in which the hook-shaped cutting blade extends. According to claim 1,
The horizontal cutting blade is a juicer bent in a direction opposite to the rotation direction of the cutting unit. delete delete According to claim 1,
The first inner protrusion is a juicer in which the first inner protrusion protrudes long inward in a direction perpendicular to the inner surface of the hopper. delete delete According to claim 1,
The hopper is
A hopper housing with an open top and the cut portion mounted on the bottom surface; and
A juicer further comprising a lid portion that is hinged to the top of the hopper housing and opens and closes the upper portion. delete According to claim 12,
The hopper housing further includes a handle portion protruding from the outer surface,
A juicer wherein the lid portion further includes a lid handle portion fastened to an upper portion of the handle portion. According to claim 14,
A hook fastening part protruding from the bottom surface is formed on the lid handle, and a fastening hole is formed in the handle part through which the hook fastening part is inserted,
A juicer in which a fixed step is formed on the outer surface of the hook fastening portion so as to be caught on the side of the lower edge of the fastening hole. According to claim 15,
A juicer in which anti-rotation ribs are formed on both edges of the lid handle and protrude downward to support both upper edges of the lid handle. According to claim 1,
A juicer wherein the upper rotating shaft of the screw located below the hopper and the cutting portion located above the bottom of the hopper are connected to enable power transmission through the connection hole. According to claim 17,
The hopper is
a bushing portion inserted into the connection hole; and
It is inserted into a hole penetrating the inside of the bushing part, and an axial hole into which the upper rotation axis of the screw is inserted is formed, and a power transmission part is coupled to the bottom of the cut part,
A juicer in which the power transmission unit inserted inside the bushing unit rotates inside the bushing unit when the screw rotates. delete delete delete delete According to claim 1,
A juicer in which the radius of the outer blade at the top of the screw body protrudes outward to be larger than the longest radius of the screw body. delete delete delete delete delete According to claim 1,
A juicer in which a bottom groove is formed on the bottom of the horizontal cutting blade. According to claim 1,
A juicer in which comb protrusions protruding inward in the longitudinal direction are formed along the circumferential direction on the inner surface of the hopper. According to claim 1,
A plurality of binding protrusions are spaced apart from the inner edge of the upper portion of the juice drum, and a plurality of binding protrusions are spaced apart from the outer edge of the lower part of the hopper. The binding protrusions are positioned between the binding protrusions, and the hopper is A juicer that couples the juice drum and the hopper by placing the coupling protrusion under the coupling protrusion by pressing downward and rotating it. According to claim 31,
A juicer in which a rotation prevention bump is formed on an end of the coupling protrusion in the fastening direction to prevent further rotation of the coupling protrusion, thereby maintaining coupling between the juice drum and the hopper.

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