Juicer

Abstract

The present invention relates to a juicer. The juicer of the present invention is characterized by including a juicing cylinder accommodating a screw for squeezing a juicing material inside, and a hopper combined to an upper portion of the juicing cylinder and formed with a space for accommodating the juicing material, the hopper including a cutting portion rotatably combined to a lower end surface of the hopper and for cutting the juicing material, an open space for the juicing material to be put in being formed at an upper side of the cutting portion in the hopper.

Description

[0001] Mother case information

[0002] This application is a divisional application of Chinese patent application number "201980029237.3" entitled "Juicer". Technical Field

[0003] The present invention relates to a juicer, and more specifically, to a juicer for squeezing and crushing vegetables or fruits to produce juice. Background Technology

[0004] For health reasons, more and more people are making their own green juice or liquid at home. As a result, there are many devices available that allow people to easily make juice at home using vegetables or fruits.

[0005] Traditional juicers involve feeding ingredients into the inlet and crushing them with high-speed rotating blades, then using centrifugal separation to produce juice. However, this high-speed crushing process can damage the inherent flavor and nutrients of the ingredients. Vegetables consisting of stems or leaves are difficult to juice, and it's not only difficult to make juice from fruits with high viscosity like kiwis or strawberries, but it's also impossible to make soy milk from soybeans.

[0006] To address these issues, Korean Patent No. 10-0793852 discloses a method for extruding and crushing materials between a mesh cylinder and a low-speed rotating screw. This method has the effect of making soy milk by grinding and pressing soybeans with a stone mill, and making juice by grating and pressing high-viscosity fruits such as tomatoes, kiwis, and strawberries on a grater, thus solving the problems of the aforementioned juicers.

[0007] However, the following problem also exists: depending on the size of the screw and the size of the inlet that is made to accommodate materials of appropriate size, the materials need to be cut into small pieces before being fed into the inlet. Summary of the Invention

[0008] The present invention was made in view of the above-mentioned problems, and its object is to provide a juicer including a hopper attached to the upper part of the juicing cylinder for pre-cutting the juicing material. By means of a cutting part that is supported only on the lower end face of the hopper and rotates in linkage with the screw, larger juicing materials such as whole fruits are pre-cut before being put into the juicing cylinder. An open space for putting the juicing material can be formed on the upper side of the cutting part in the hopper, so that the size of the juicing material put into the hopper can be larger.

[0009] The problems to be solved by the present invention are not limited to those described above. Other problems not mentioned should be clearly understood by those skilled in the art from the following description.

[0010] The objective can be achieved by the juicer of the present invention. The juicer of the present invention includes: a juicing cylinder housing a screw for squeezing juicing material; and a hopper attached to the upper part of the juicing cylinder and forming a space for accommodating the juicing material, the hopper including a cutting portion rotatably attached to the lower end face of the hopper, receiving the rotational force of the screw and rotating to cut the juicing material, and an open space for feeding the juicing material is formed on the upper side of the cutting portion within the hopper.

[0011] Here, the cutting portion may include: a chopping blade extending upward at the center of rotation in a spiral shape; and a cutting blade extending horizontally at the lower end face of the hopper.

[0012] Here, the chopping blade can extend upward along the rotation direction of the cutting portion to form a spiral shape.

[0013] Here, an inclined curved surface for guiding the juicing material to move downwards can be formed on the radial inner side of the chopping blade.

[0014] Here, the chopping edge and the cutting edge can extend in opposite directions at the center of rotation.

[0015] Here, the cutting edge may be curved in the opposite direction to the rotation direction of the cutting portion.

[0016] Here, the height of the end of the chopping blade is preferably higher than the height of the upper surface of the cutting blade.

[0017] Here, the chopping edge and the cutting edge can be formed as one piece.

[0018] Here, a first inner protrusion may be formed on the inner side of the hopper. The first inner protrusion protrudes long inward in the vertical direction and is used to support the juicing material when the chopping blade rotates.

[0019] Here, a second inner protrusion may be formed at the position of the end of the cutting blade on the inner side of the hopper. The second inner protrusion protrudes inward and is used to detach the juice material above the cutting blade.

[0020] Here, the lower end of the first inner protrusion may be formed with a through groove that extends through both sides, so that the upper end of the chopping blade can pass through.

[0021] Here, the hopper may further include: a hopper shell, open at the top, and the cutting part installed on the lower end face; and a cover part, hinged to the upper end of the hopper shell, for opening and closing the upper part.

[0022] Here, the cover portion may include: a hinge portion hinged to the upper end of the hopper housing; and a magnet mounting portion extending downward from the hinge portion and having a first magnet disposed inside; and the juicer may include an opening / closing sensing portion, which may include: a second magnet disposed at a position spaced apart from the first magnet, which moves according to the distance from the first magnet when the cover portion rotates about the hinge portion; and a switch that generates an on / off control signal according to the position of the second magnet.

[0023] Here, the hopper housing may further include a handle portion protruding from the outer side, and the cover portion may further include a cover handle portion attached to the upper part of the handle portion.

[0024] Here, a hook engagement portion protruding from the lower end face is formed on the cover handle portion, and an engagement hole is formed on the handle portion to allow the hook engagement portion to be inserted. A fixing step may be formed on the outer side of the hook engagement portion, and the fixing step is hooked onto the lower edge side of the engagement hole.

[0025] Here, anti-rotation ribs that protrude downwards and support the upper two sides of the cover handle can be formed on both sides of the cover handle portion.

[0026] Here, a safety guide may be formed, which protrudes downward along the lower end edge of the cover and is inserted into the inner side of the upper end of the hopper. The safety guide may be configured such that the protrusion height increases the further away from the position where it is hinged to the hopper shell.

[0027] Here, the hopper may further include: a sleeve portion inserted into a connecting hole formed in the center of the lower end face of the hopper; and a power transmission portion inserted into a hole penetrating the interior of the sleeve portion and having a shaft hole for inserting the upper rotating shaft of the screw, wherein the hopper can be threadedly connected to the cutting portion by a screw inserted through the shaft hole.

[0028] Here, the inner surface of the sleeve portion can be formed into a conical shape with a smaller radius towards the top.

[0029] Here, the power transmission part may include: a connecting part having the shaft hole and an outer surface formed in a conical shape to correspond to the inner surface of the sleeve part; and an upper protrusion forming at the upper end of the connecting part protruding above the top surface of the sleeve part and having a screw hole for the screw to be inserted.

[0030] Here, the upper protrusion may be formed in the shape of an angular shaft, and an angular groove for inserting the upper protrusion may be formed on the lower end face of the cut portion.

[0031] Here, the upper rotating shaft of the screw can be formed as an n-sided angular shaft, and the shaft hole can be formed as a 2n-sided shaft hole.

[0032] Here, the screw may have one or more screw threads that protrude in a spiral shape on the outer circumferential surface of the screw body, and the screw is a single-edged screw with a screw thread extending towards the upper end of the screw body to form a single edge, the single edge of which may protrude radially beyond the longest radius of the screw body.

[0033] Here, the screw can be divided into an upper cutting section and a juicing section. The cutting section is used to further cut the juicing material fed from the hopper, and the juicing section is used to squeeze the juicing material below the cutting section to generate juice. An annular protruding anti-overfeeding rib can be formed at the upper end of the juicing section.

[0034] Here, a juice separation cylinder may be further included between the juicing cylinder and the screw, the juice separation cylinder having an outlet hole for discharging juice generated from the juicing material to the outside to separate the juice and residue, the upper end of the juice separation cylinder having an expansion portion that expands with increasing radius towards the top, and the single blade may be located inside the expansion portion.

[0035] Here, a material inflow guide may be formed on one side of the expansion portion, the material inflow guide being a curved surface that gradually moves inward along the rotation direction of the screw.

[0036] Here, the juice separation cylinder may include: an inner module, including an inner plate portion open at both ends and a plurality of slits formed on the inner plate portion, and having the expansion portion formed thereon; and an outer module, including an outer plate portion that can detachably accommodate the inner module inside and a rib that protrudes from the inner side of the outer plate portion in such a way that it can be inserted into the slits of the inner plate portion, wherein when the outer module surrounds and is attached to the inner module, an outflow hole, i.e. a gap, can be formed between the slits and the ribs for the juice to flow out to the outside.

[0037] Here, the device may further include a main body, comprising: a lower main body portion having a drive shaft protruding upward and used to support the lower end face of the juicing cylinder; and an upper main body portion having a side portion protruding upward on one side of the lower main body portion and used to support the juicing cylinder and the hopper, wherein an anti-rotation key protruding long in the length direction is formed on the upper main body portion, and an anti-rotation keyway for inserting the anti-rotation key may be formed on the outer side of the hopper.

[0038] Here, the chopping edge may have a thick wall at the center of rotation and extend upward in a spiral shape.

[0039] Here, a hole for inserting a push rod can be formed on the cover portion, and the hole can be formed on the upper side of the rotation center of the cutting portion.

[0040] Moreover, the aforementioned objective can be achieved by the juicer of the present invention. The juicer of the present invention includes: a juicing cylinder housing a screw for squeezing juicing material; and a hopper attached to the upper part of the juicing cylinder and forming a space for accommodating the juicing material, the hopper including a cutting portion rotatably attached to the lower end face of the hopper for cutting the juicing material, and an open space for feeding the juicing material is formed on the upper side of the cutting portion within the hopper.

[0041] Here, the cutting portion may include: a chopping blade extending spirally upward at the center of rotation; and a cutting blade extending horizontally at the lower end face of the hopper. The chopping blade and the cutting blade extend in opposite directions at the center of rotation. The tip of the chopping blade may be curved toward the cutting blade, or the tip of the cutting blade may be curved toward the chopping blade.

[0042] Here, a first inner protrusion is formed on the inner side of the hopper. The first inner protrusion protrudes long inward in the vertical direction and is used to support the juice material when the cutting part rotates. A through groove is formed at the lower end of the first inner protrusion, which passes through the two protruding sides, so that the cut juice material can pass through.

[0043] Here, the cutting portion may include: a chopping blade extending spirally upward at the center of rotation; and a cutting blade extending horizontally on the lower end face of the hopper, the upper end of which may be located below the first inner protrusion.

[0044] Here, at least one discharge hole may be formed on the lower end face of the hopper for moving the juicing material crushed in the hopper into the juicing cylinder located below, and the discharge hole may be formed such that its width gradually increases along the rotation direction of the cutting part.

[0045] Here, a juice separation cylinder may be further included between the juicing cylinder and the screw, the juice separation cylinder having an outlet hole for discharging juice generated from the juicing material to the outside to separate the juice and residue, and the upper end of the juice separation cylinder having an expansion portion that expands with increasing radius towards the top, so that the single blade at the upper end of the screw is located inside the expansion portion.

[0046] Here, at least one material inflow guide may be formed on one side of the expansion portion, the material inflow guide being a curved surface that gradually moves inward along the rotation direction of the screw, and at least one of the material inflow guides may be located below the discharge hole.

[0047] As described above, the juicer according to the present invention cuts and stirs the juicing material in the hopper before feeding it to the juicing cylinder, thus eliminating the need to pre-cut the juicing material and improving user convenience.

[0048] Furthermore, the cutting section is supported and rotates only on the lower end face inside the hopper, thus ensuring an open space on the upper side of the cutting section inside the hopper, which allows for a larger size of the juicing material to be fed into the hopper. Attached Figure Description

[0049] Figure 1 This is a perspective view of a juicer according to an embodiment of the present invention.

[0050] Figure 2 yes Figure 1 An exploded perspective view of the main body and the juicing section.

[0051] Figure 3 yes Figure 1 A sectional view.

[0052] Figure 4 yes Figure 2 An exploded perspective view of the juicing section shown.

[0053] Figure 5 and Figure 6 yes Figure 4 A 3D view of the hopper shown.

[0054] Figure 7 This is a 3D view of the hopper with the cover open.

[0055] Figure 8a and Figure 8b They are respectively Figure 5 An exploded perspective view of the hopper shown.

[0056] Figure 9 In (a) and (b), the positions of the chopping and cutting edges are used. Figure 5 The vertical sectional view of the hopper shown.

[0057] Figure 10 This is a vertical sectional view of a hopper illustrating a modified example of the positional relationship between the first inner protrusion and the chopping edge.

[0058] Figure 11 This is a horizontal sectional view of the hopper showing the bottom plate surface.

[0059] Figure 12 It is a diagram. Figure 5 A bottom view of the bottom surface of the hopper shown.

[0060] Figure 13 This is a three-dimensional view of the cut section shown in Figure 8.

[0061] Figure 14 and Figure 15 yes Figure 13 Side view of the cut section shown.

[0062] Figure 16 It is a diagram. Figure 13 A perspective view of the bottom surface of the cut section shown.

[0063] Figure 17 yes Figure 4 A 3D view of the screw shown.

[0064] Figure 18 yes Figure 17 Side view.

[0065] Figure 19 It is a diagram. Figure 17 A three-dimensional view of the bottom surface of the screw shown.

[0066] Figure 20 yes Figures 17 to 19 The example shown is a modified version of the screw.

[0067] Figure 21 and Figure 22 yes Figure 4 An exploded perspective view of the juice separation cylinder shown.

[0068] Figure 23 This is a partial cross-sectional view of the juice separation cylinder combined with a three-dimensional perspective.

[0069] Figure 24 yes Figure 4 A partial sectional perspective view of the juicing cylinder shown.

[0070] Figure 25 It is a diagram. Figure 24 A 3D view of the juicing cylinder with the juice cap open.

[0071] Figure 26 It is a diagram. Figure 27 A perspective view of the back of the juice cap shown.

[0072] Figure 27 It is a diagram. Figure 24 A three-dimensional view of the bottom surface of the juicer shown.

[0073] Figure 28 yes Figure 27 A three-dimensional view of the lower end of the slag discharge port.

[0074] Figure 29 yes Figure 2 An exploded 3D view of the main body shown.

[0075] Figure 30 yes Figure 3A three-dimensional view of the opening and closing sensor unit shown.

[0076] Figure 31 yes Figure 29 An exploded perspective view of the moving motor shaft shown.

[0077] Figure 32 This is a partial sectional perspective view of the moving motor shaft used to illustrate its operation. Detailed Implementation

[0078] The specific details of the embodiments are included in the detailed description and accompanying drawings.

[0079] The advantages and features of the present invention, as well as the methods for achieving these advantages and features, should be clearly understood with reference to the accompanying drawings and the detailed embodiments described below. However, the present invention is not limited to the embodiments described below, and can be implemented in various forms. These embodiments are provided only to fully disclose the present invention and to fully inform those skilled in the art of its scope; the present invention is defined only by the scope of the claims. Throughout this specification, the same reference numerals denote the same structural elements.

[0080] The present invention will now be described with reference to the accompanying drawings of a juicer used to illustrate embodiments thereof.

[0081] Figure 1 This is a perspective view of a juicer according to an embodiment of the present invention. Figure 2 yes Figure 1 An exploded perspective view of the main body and the juicing section. Figure 3 yes Figure 1 sectional view, Figure 4 yes Figure 2 An exploded perspective view of the juicing section shown.

[0082] The juicer of one embodiment of the present invention can be divided into two main parts: the main body 100 and the juicing part 200.

[0083] The main body 100 is fitted with and fixed to the juicing unit 200. It receives external power from the power line 102 connected to the lower end of the main body 100 to rotate the internal motor 1001, thereby providing driving force for rotating the screw 230 that constitutes the juicing unit 200.

[0084] like Figure 4 As shown, the juicing unit 200 may be composed of a hopper 210, a juicing cylinder 280, a juicing separator 260, and a screw 230.

[0085] The juicing unit 200 is assembled by attaching the hopper 210 to the upper part of the juicing cylinder 280 with the juice separation cylinder 260 consisting of the inner module 240 and the outer module 250 and the screw 230 installed inside the juicing cylinder 280.

[0086] With the lower juicing cylinder 280 and the upper hopper 210 combined, the juicing unit 200 can be installed on the main body 100 and operated by receiving power from the drive shaft 130 protruding from the bottom surface of the main body 100. That is, by receiving the rotational force of the drive shaft 130, the screw 230 inside the juicing cylinder 280 and the cutting part 225 inside the hopper 210 rotate to cut and squeeze the added juicing material to generate juice, and then separate the generated juice and residue for discharge.

[0087] like Figure 2 As shown, the juicing section 200 can only be used when the hopper 210 is attached to the upper part of the juicing cylinder 280. Figure 1 The juicing unit 200 is mounted on the main body 100 as shown. That is, in this invention, with only the juicing cylinder 280 mounted on the main body 100, the hopper 210 cannot be attached to the upper part of the juicing cylinder 280. If the juicer is operated with only the juicing cylinder 280 mounted on the main body 100, the user may be accidentally injured. As will be described later, this invention is configured to supply power to the juicer only when the juicing unit 200 is mounted in the main body 100 and the lid of the hopper 210 is closed, thereby preventing user injury due to accidental operation of the juicer. At the same time, mechanically, the juicing unit 200 can only be mounted entirely on the main body 100 when the juicing unit 200 is assembled, further ensuring user safety. The related structure will be described later.

[0088] The following description, with reference to the accompanying drawings, details the various structural elements constituting the juicing section 200 and the structure of the main body 100.

[0089] Below, refer to Figures 5 to 16 The hopper 210 of one embodiment of the present invention is described below.

[0090] Figure 5 and Figure 6 yes Figure 4 The 3D view of the hopper shown. Figure 7 This is a 3D view of the hopper with the cover open. Figure 8a and Figure 8b They are Figure 5 The exploded perspective view of the hopper shown. Figure 9 In (a) and (b), the positions of the chopping and cutting edges are used. Figure 5 The vertical sectional view of the hopper shown. Figure 10 This is a vertical sectional view of a hopper, illustrating a modified example of the positional relationship between the first inner protrusion and the chopping edge. Figure 11 This is a horizontal sectional view of the hopper showing the bottom plate surface. Figure 12 It is a diagram. Figure 5 The bottom view of the hopper shown is shown. Figure 13This is a three-dimensional view of the cut portion shown in Figure 8. Figure 14 and Figure 15 yes Figure 13 The side view of the cut section shown. Figure 16 It is a diagram. Figure 13 A perspective view of the bottom surface of the cut section shown.

[0091] The hopper 210 is detachably attached to the upper part of the juicing cylinder 280. The hopper 210 forms a space for storing the added juicing material (e.g., fruits, vegetables, grains, etc.). A cutting portion 225, rotatably fixed to the inner bottom plate of the hopper 210, receives power from the screw 230 and rotates, thereby cutting and agitating the juicing material and supplying it to the lower juicing cylinder 280. Therefore, the present invention achieves the cutting of the juicing material within the hopper 210, thus eliminating the need for pre-cutting and feeding of the juicing material.

[0092] The hopper 210 can be divided into two main parts: the hopper shell 215 and the cover 220. The cutting part 225 can be installed inside the hopper 210, so it can also include the cutting part 225 and be called the hopper 210.

[0093] The hopper shell 215 is cylindrical or truncated cone-shaped, forming a space for receiving the juice material through an open upper part.

[0094] As shown in Figure 8, the bottom plate of the hopper shell 215 can be formed separately from the upper cylindrical body, but it is not limited to this and can also be formed as one piece.

[0095] A cutting part 225 can be rotatably installed on the upper part of the bottom plate of the hopper housing 215. The cutting part 225 can receive power from the screw 230 inside the juicing cylinder 280 and rotate together with the screw 230.

[0096] On the inner surface of the hopper housing 215, comb-like protrusions 2151 that extend long and inwardly are formed along the circumferential direction. This is to prevent light juicing materials, such as leafy vegetables, from absorbing water and adhering to the inner surface of the hopper housing 215, and to make them easy to peel off. In this case, it is preferable to form comb-like protrusions 2151 on the entire inner surface of the hopper housing 215.

[0097] A handle 216 for a user to grip may be formed on one side of the outer peripheral surface of the hopper housing 215. As shown in the figure, the handle 216 may extend in an annular 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 216 is not necessarily connected to the lower end of the hopper housing 215.

[0098] As shown in the figure, the handle portion 216 can be formed into a shape including a horizontal plane extending a predetermined distance from the upper end of the hopper housing 215 and a vertical plane extending vertically downward from the end of the horizontal plane. A connecting hole 2161 can be formed on the horizontal plane at the upper end for the hook connecting portion 2221 of the cover portion 220 to be inserted and connected.

[0099] A through connection hole 2152 is formed in the center of the bottom plate surface of the hopper housing 215. The upper rotating shaft 233 of the screw 230 located below the hopper 210 is connected to the cutting part 225 located on the upper part of the bottom plate surface of the hopper 210 in a way that can transmit power through the connection hole 2152. The detailed structure related thereto will be described later.

[0100] At least one through-hole 217 can be formed between the center and the edge of the bottom plate surface of the hopper housing 215. The juicing material in the hopper 210 can be cut and stirred by the cutting part 225 that is rotatably fixed to the bottom plate surface inside the hopper 210, and supplied to the juicing cylinder 280 disposed below the hopper 210 through the discharge hole 217. In the figure, a discharge hole 217 is formed on one side of the bottom plate surface of the hopper 210, and the larger the number or area of ​​the discharge holes 217, the more juicing material (or large-sized material) can be supplied to the juicing cylinder 280. However, if too much juicing material is supplied into the juicing cylinder 280, the screw 230 may be overloaded. Therefore, it is preferable to set the size and number of discharge holes 217 in a way that can supply an appropriate amount and size of juicing material.

[0101] like Figure 11 and Figure 12 As shown, the width of the discharge hole 217 can be formed to gradually widen along the rotation direction of the cutting section 225. Therefore, soft juicing material or juicing material pulverized into smaller pieces can immediately flow into the screw 230 through the narrow portion of the discharge hole 217 at the front end in the rotation direction, while hard juicing material or juicing material pulverized into larger pieces can stay inside the hopper 210 for a while, so that it can be further pulverized by the cutting section 225 and discharged through the wide portion of the discharge hole 217 at the rear end in the rotation direction.

[0102] Furthermore, an inclined surface 2171 inclined toward the discharge hole 217 can be formed on the inner side of the bottom plate of the hopper housing 215. Preferably, the inclined surface 2171 is formed inclined downwards along the rotation direction of the cutting portion 225. Since the height of the portion of the inclined surface 2171 that contacts the discharge hole 217 is lower than the height of the inner bottom plate of the hopper housing 215, the material to be juiced can be effectively guided toward the discharge hole 217. Through the discharge hole 217, the juicing material that may be fixed or stuck between the inner side of the bottom plate of the hopper housing 215 and the cutting edge 227 of the cutting portion 225 can move smoothly downwards.

[0103] Furthermore, such as Figure 12 As shown, the present invention may also have an inclined surface 2172 formed on the outer side of the bottom plate of the hopper housing 215 (the 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 cutting portion 225, so that the juicing material can be smoothly supplied to the juicing cylinder 280 through the discharge hole 217. The inclined surface 2171 formed on the inner side of the bottom plate of the hopper housing 215 and the inclined surface 2172 formed on the outer side of the bottom plate of the hopper housing 215 are respectively formed at the front end and the rear end of the discharge hole 217 along the rotation direction of the cutting portion 225, and the inclination direction is downward along the rotation direction of the cutting portion 225.

[0104] A predetermined number of horizontally protruding connecting protrusions 2174 are provided on the outer edge of the lower end of the hopper housing 215. The connecting protrusions 2174, together with the snap-fit ​​protrusions 2801 formed on the inner edge of the upper part of the juicing cylinder 280, can detachably connect the juicing cylinder 280 and the hopper 210.

[0105] The cover portion 220 is formed as an open upper part capable of opening and closing the hopper housing 215. A through hole, namely a replenishment inlet 2201, can be formed in the center of the cover portion 220. During the juicing operation, when it is necessary to replenish relatively small juicing materials, juicing materials can be supplied into the hopper 210 through the replenishment inlet 2201. Moreover, a pusher 290 can be inserted into the replenishment inlet 2201 to apply force, causing the juicing materials inside the hopper 210 to move to the lower part of the hopper 210. Although not shown, another plug for blocking the replenishment inlet 2201 may also be formed.

[0106] like Figure 9 As shown, the replenishment inlet 2201 is located at the center of the cover portion 220. At this time, the replenishment inlet 2201 is configured such that when the push rod 290 is inserted through the replenishment inlet 2201, the lower end of the push rod 290 is located above the center of the cutting portion 225 disposed on the lower inner end surface of the hopper 210, thus the push rod 290 will not interfere with the cutting portion 225. In particular, as described later, the cutting portion 225 of the present invention can be formed by a chopping blade 226 extending upward in a spiral shape and a cutting blade 227 extending horizontally on the lower end surface of the hopper. Since the chopping blade 226 is formed to extend upward in a spiral shape, even if the lower end of the push rod 290 is inserted into the chopping blade 226, there will be no interference. Therefore, the length of the push rod 290 can be set to a sufficiently long length extending directly above the rotation center of the cutting portion 225.

[0107] More specifically, on one edge of the cover portion 220, on the opposite side of the handle portion 216 to which the hopper housing 215 is formed, a hinge portion is formed. This hinge portion has a horizontally penetrating pin hole 2203 into which a pin 224 can be inserted. The cover portion 220 can be hinged to the upper part of the hopper housing 215 by providing the pin hole 2203 of the hinge portion between the pin fixing holes 2153 formed on both sides of the upper end of the hopper housing 215, and by inserting a pin 224 into the pin fixing holes 2153 and the pin hole 2203. That is, in this invention, the cover portion 220 is not separated from the hopper housing 215, but is hinged together with the hopper housing 215 and formed as a single unit.

[0108] A magnet mounting portion 221 extends vertically downward from the hinge portion. A first magnet 2211 for sensing the opening and closing state of the cover portion is disposed inside the magnet mounting portion 221. As described later, a second magnet 1102 may be disposed inside the upper main body portion 110. When the cover portion 220 is opened and closed, the magnet mounting portion 221 rotates, changing its position. Consequently, the distance between the first magnet 2211 and the second magnet 1102 changes, resulting in a change in magnetic force. Based on the movement of the second magnet 1102 caused by the change in magnetic force, the opening and closing status of the cover portion 220 can be sensed. Further details will be provided later. Figures 29 to 30 Please provide an explanation.

[0109] When the cover 220 is opened, the magnet mounting portion 221, which extends vertically downward in the hinge portion, rotates toward the hopper housing 215, and may therefore interfere with the outer surface of the hopper housing 215. Therefore, as shown in the figure, an anti-interference groove 2154 recessed toward the inner side of the hopper housing 215 is formed on the outer surface of the hopper housing 215 where the magnet mounting portion 221 is located, to create space for the magnet mounting portion 221 to move toward the center of the hopper 210.

[0110] A handle portion 222 protrudes outward from the outer side of the cover portion 220 covering the open upper part of the cylindrical hopper housing 215 on the opposite side of the hinge portion, and the handle portion 222 is located above the handle portion 216. The handle portion 222 can be engaged with the handle portion 216 at the upper part of the handle portion 216. The handle portion 222 is a horizontal surface with a predetermined width, which protrudes out from the cover portion 220 covering the open upper part of the hopper housing 215, and a hook engagement portion 2221 is formed protruding downward from the bottom surface of the handle portion 222. At this time, the hook engagement portion 2221 is formed to protrude vertically downward in such a way that it has a plate surface in the width direction of the handle portion 222, so that it can be pressed by the user's finger towards the user side.

[0111] As described above, a connecting hole 2161 is formed on the upper horizontal surface of the handle portion 216. The connecting hole 2161 extends through the upper horizontal surface in the width direction with a shape corresponding to the cross-section of the hook connecting portion 2221, so that the hook connecting portion 2221 can be inserted through it.

[0112] Furthermore, in order to fix the cover portion 220 without opening, so that the hook joint portion 2221 is attached to the lower edge side of the joint hole 2161, a fixing step 2222 may be formed on the outer side of the hook joint portion 2221.

[0113] Therefore, when the hook engagement portion 2221 of the cover portion 220 is inserted into the engagement hole 2161, and the fixing step 2222 of the hook engagement portion 2221 is hooked onto the lower edge side of the engagement hole 2161, it can prevent the cover portion 220 from being manually opened while covering the upper open surface of the hopper housing 215.

[0114] Conversely, with the user gripping the handle 216, the fixed step 2222 attached to the side edge of the connecting hole 2161 can be released by pulling the hook connection 2221 towards the user with the index finger or other fingers, and the cover 220 can be opened by applying the force of lifting the handle 222 upward with the thumb or other fingers in this state.

[0115] Furthermore, anti-rotation ribs 2224 that protrude long downwards in the direction of the cover handle portion 222 can be formed on both sides of the bottom surface of the cover handle portion 222. When the cover portion 220 is closed, the anti-rotation ribs 2224 are supported by the upper sides of the handle portion 216 to prevent the cover portion 220, which is connected to the upper part of the hopper housing 215 by the hinge portion, from rotating in the horizontal direction.

[0116] like Figure 7 As shown, a safety guide 223 can be formed, which protrudes vertically downward along the bottom edge of the cover 220 and inserts into the inner side of the upper end of the hopper 210. When the cover 220 is opened at a certain angle, the safety guide 223 prevents the user's hand from entering the interior of the hopper housing 215. As described above, the juicer of the present invention does not operate when the cover 220 is open due to the operation of the first magnet 2211 and the second magnet 1102. When the cover 220 is partially open, and the opening / closing sensor 115 for sensing the opening / closing state of the cover 220 fails to sense the opening state due to sensing error, the safety guide 223 prevents accidental safety incidents. Moreover, the safety guide 223, together with the anti-rotation rib 2224, can also perform the function of preventing the cover 220 from rotating in the horizontal direction.

[0117] Although the safety guide 223 can protrude along the lower end edge of the cover 220 to a predetermined height, as shown in the figure, the safety guide 223 can be formed with a shape in which its protrusion height gradually decreases from the side away from the hinge to the hinge side, and the lower end surface is inclined.

[0118] The cutting part 225 is rotatably coupled to the inner bottom plate of the hopper 210. It receives rotational force from the screw 230 located inside the juicing cylinder 280 and rotates inside the hopper 210 to cut and stir the juicing material fed into the hopper 210. The cut juicing material is supplied to the juicing cylinder 280 located below the hopper 210 through the discharge hole 217 formed on the lower end face of the hopper 210.

[0119] In this invention, the cutting section 225 does not cut the juicing material while rotating on both sides of the hopper 210, which is supported between the lower and upper ends of the hopper 210. Instead, it cuts the juicing material while one end is supported at the lower end of the hopper 210. Therefore, an undisturbed open space is formed on the upper side of the cutting section 225 inside the hopper 210. As a result, an open space is formed on the entire upper side of the cutting section 225, allowing juicing materials as large as whole fruits to be fed into the hopper 210 for cutting.

[0120] Next, refer to Figure 8 and... Figure 9 The structure is described as follows: the cutting part 225 is rotatably attached to the bottom plate of the hopper housing 215, and the cutting part 225 is rotated by receiving rotational force from the screw 230.

[0121] A sleeve portion 218 is disposed in a connecting hole 2152 formed on the bottom plate surface of the hopper housing 215. The radial inner and outer surfaces of the sleeve portion 218 are formed into a conical shape with a smaller radius towards the top, and a step 2181 is formed at the lower end in the shape of a circular flange. Corresponding to the shape of the outer surface of the sleeve portion 218, a conical inclined surface and a snap-fit ​​ridge 2158 are formed on the inner surface of the connecting hole 2152. In this case, the sleeve portion 218 can also be integrally formed on the bottom surface of the hopper housing 215 by insert molding.

[0122] The connecting hole 2152 and the sleeve part 218 are connected in a conical shape with a smaller radius towards the top. Therefore, even when the screw 230 is subjected to an upward force due to the load during the juicing process, the bonding force between the bottom plate of the hopper and the sleeve part 218 can be firmly maintained, thus preventing deformation caused by the upward floating of the screw 230.

[0123] An open hole with an upper and lower opening is formed on the inner side of the sleeve portion 218 for the insertion of the power transmission portion 219. When the screw 230 rotates with the upper rotating shaft 233 of the screw 230 inserted into the power transmission portion 219, the power transmission portion 219 inserted into the sleeve portion 218 rotates inside the sleeve portion 218. Therefore, the sleeve portion 218 is preferably made of a material that is not easily deformed by friction that occurs when the power transmission portion 219 rotates.

[0124] The power transmission section 219 may be composed of a connecting section 2191 and an upper protrusion 2195. To correspond to the shape of the inner surface of the sleeve section 218, which is a cone shape with a decreasing radius towards the top, the outer surface of the connecting section 2191 is also formed as a cone shape with a decreasing radius towards the top. The connecting section 2191 has a shaft hole 2192 formed inside for the insertion of the upper rotating shaft 233 of the screw 230. The upper rotating shaft 233 of the screw 230 is formed as an angular shaft, and the shaft hole 2192 may also be an angular shaft hole. In this embodiment, the upper rotating shaft 233 of the screw 230 is formed as a hexagonal angular shaft, and the shaft hole 2192 may be a dodecagonal shaft hole 2192, which is twice the size of a dodecagon. The shaft hole 2192 formed on the power transmission section 219 can be hexagonal to correspond to the shape of the upper rotating shaft 233 of the screw 230. However, forming a dodecagonal shaft hole 2192, which is twice the size of the screw 230, may make the connection between the upper rotating shaft 233 of the screw 230 and the power transmission section 219 easier. Furthermore, forming an inclined surface with an expansion in the size of the shaft hole at the inlet of the dodecagonal shaft hole 2192 can make the connection easier. Therefore, in order to make the connection between the two components easier, when the upper rotating shaft 233 of the screw 230 is formed as an n-sided angular shaft, the shaft hole formed on the connection section 2191 of the power transmission section 219 can be formed as a 2n-sided shaft hole.

[0125] At this time, when the power transmission section 219 is connected in the sleeve section 218, the bottom surface of the power transmission section 219 is located on the upper side compared to the bottom surface of the bottom plate of the hopper 210.

[0126] An upper protrusion 2195 is formed on the upper part of the connecting part 2191. When the power transmission part 219 inserts the sleeve part 218 into the bottom surface of the hopper housing 215, the upper protrusion 2195 passes through the hole of the sleeve part 218, protrudes to the upper part of the top surface of the sleeve part 218, and is located inside the hopper 210. At this time, the upper protrusion 2195 can be formed into a quadrilateral corner, and a corresponding corner groove 2251 is formed on the bottom surface of the cutting part 225, thereby connecting the cutting part 225 to the upper protrusion 2195. The shape of the upper protrusion 2195 and the corresponding groove 2251 on the bottom surface of the cutting part 225 are not limited to this, and can be deformed into various shapes such as a cross shape and a spline shape.

[0127] With the upper protrusion 2195 engaged with the groove 2251 on the bottom surface of the cut-off portion 225, a screw 2199 can be inserted through the shaft hole 2192 of the engagement portion 2191 and threaded into the screw hole 2196 through the upper protrusion 2195 and the screw groove 2252 formed on the rotation center of the bottom surface of the cut-off portion 225, so as to firmly fix the cut-off portion 225 to the upper protrusion 2195.

[0128] In order to limit the insertion depth of the upper rotating shaft 233 of the screw 230, a step is formed at the upper end of the shaft hole 2192 formed on the inner side of the joint 2191, and the head of the screw 2199 is located at the upper part of the step with reference to the step.

[0129] As described above, the inner surface of the sleeve portion 218 and the outer surface of the power transmission portion 219 are connected in a conical shape with a smaller radius towards the top, thus preventing the screw 230 from floating when subjected to an upward buoyancy force. Furthermore, the more the power transmission portion 219 is subjected to an upward force, the more concentric the power transmission portion 219 and the sleeve portion 218 become, thereby improving mechanical stability.

[0130] The cutting section 225 is rotatably attached to the bottom plate of the hopper 210. It receives rotational force from the screw 230 through the power transmission section 219 and rotates while cutting and agitating the juice material.

[0131] The cutting section 225 may be configured with a chopping blade 226 and a cutting blade 227. The chopping blade 226 and the cutting blade 227 can rotate at the same speed. At this time, the chopping blade 226 and the cutting blade 227 can be formed as one piece, so the chopping blade 226 and the cutting blade 227 rotate together at the same speed.

[0132] The chopping edge 226 extends upward in a spiral shape along the rotation direction of the cutting portion 225 from the center of rotation. The upper end of the chopping edge 226 is preferably formed into a pointed hook shape with a smaller cross-section towards the end. Moreover, the chopping edge 226 is not formed into a plate shape, but rather into a shape with a specified thickness, and the cross-section becomes smaller towards the top, and it extends upward in a spiral shape, thus forming a shape like a cow horn.

[0133] The upward-facing, hook-shaped chopping blade 226 primarily functions to chop and crush the juicing material fed into the upper part of the blade. Furthermore, since the chopping blade 226 is not plate-shaped but rather has a defined thickness, it prevents stems such as water celery from tangling around it. Moreover, its spiral-shaped, horn-like extension guides the chopped juicing material downwards. The radially inner surface of the chopping blade 226 has an inclined curved surface 2261 that widens towards the radially outer side towards the lower part, allowing the juicing material crushed by the chopping blade 226 to move smoothly downwards along the curved surface during its rotation.

[0134] The higher the upper end of the chopping blade 226, the better the crushing effect. The upper end of the chopping blade 226 is preferably set to be at least higher than the upper end face of the cutting blade 227. Moreover, the radial length of the chopping blade 226 is preferably as long as possible in the radial direction without interfering with the inner side of the hopper 210.

[0135] The cutting edge 227 extends horizontally from the lower end face of the hopper 210. Preferably, the cutting edge 227 is also formed to have a predetermined thickness in the vertical direction. As shown, the cutting edge is formed at the upper end where the inclined surfaces in front of and behind the cutting edge 227 meet in the direction of rotation. At this time, as... Figure 14 As shown, the tip of the cutting edge 227 can be formed such that its height gradually decreases towards the radially inward side. The cutting edge 227 is used to perform the function of secondary crushing of the juice material that is being crushed by the chopping edge 226 and moving downward using the blade formed at its upper end. At the same time, because the cutting edge 227 has a specified thickness, it can push the juice material located on the bottom plate surface of the hopper 210, allowing it to be smoothly discharged through the discharge hole 217. This is because if the thickness of the cutting edge 227 is too thin, it may be unable to push the juice material located on the bottom plate surface of the hopper 210 and may spin idly.

[0136] The cutting edge 227 is preferably formed at the center of rotation of the cutting portion 225, in a position 180 degrees opposite to the direction in which the chopping edge 226 extends, but it is not necessarily limited to this. In this case, the cutting edge 227 is preferably formed in a shape that bends in the opposite direction to the rotation direction of the cutting portion 225.

[0137] Therefore, in this invention, the chopping blade 226 and the cutting blade 227 exist in opposite directions at the center of rotation, and the tips of the chopping blade 226 and the cutting blade 227 are bent toward each other, so the overall shape of the cutting portion 225 is similar to a crescent shape.

[0138] Moreover, the chopping blade 226 and the cutting blade 227 are not located on the same plane. The chopping blade 226 is bent into a spiral shape and has an upward extending shape. Therefore, the overall shape of the cutting part 225 is similar to a crescent shape, and has a shape that is twisted to each other in space.

[0139] Similar to the chopping blade 226, the cutting blade 227 is also preferably formed to be as long as possible in the radial direction without interfering with the inner side of the hopper 210.

[0140] A bottom groove 2271 of a specified depth can be formed on the bottom surface of the cutting edge 227. This can help reduce the weight of the cutting part 225.

[0141] As described above, at the rotation center of the bottom surface of the cutting section 225, a angular groove 2251 is formed corresponding to the shape of the upper protrusion 2195 of the power transmission section 219, which is formed into a quadrilateral angle. A screw groove 2252 for engaging a screw is formed on the angular groove 2251. With the upper protrusion 2195 of the power transmission section 219 inserted into the angular groove 2251, the cutting section 225 is engaged by a screw 2199, thereby allowing the cutting section 225 to be rotatably mounted on the inner bottom plate surface of the hopper housing 215.

[0142] like Figure 9 As shown, at least one first inner protrusion 2155, which protrudes vertically inward, can be formed on the inner surface of the hopper 210. The first inner protrusion 2155 interacts with the chopping blade 226 to hold the juicing material fed into the hopper 210, thereby improving the crushing efficiency by the chopping blade 226. Without the first inner protrusion 2155, the juicing material may rotate with the chopping blade 226 and not be cut. However, if the chopping blade 226 is rotated while the juicing material is supported in the direction of rotation by the first inner protrusion 2155, the juicing material can be easily crushed. Therefore, in order to support the juicing material radially, the first inner protrusion 2155 is preferably formed with a relatively larger inward protrusion height compared to the second inner protrusion 2157 described later.

[0143] Through the aforementioned anti-interference groove 2154, one side of the outer peripheral surface of the hopper 210 bends inward, as shown in the figure. The outer peripheral surface of the hopper 210 can form a first inner protrusion 2155 together with the anti-interference groove 2154.

[0144] At this time, the lower end of the first inner protrusion 2155 can be formed to be located at the upper end of the chopping edge 226, such as Figure 9 As shown in (a), a through groove 2156 extending through both sides can be formed at the lower end of the first inner protrusion 2155. At this time, the upper end of the chopping edge 226 can pass through the through groove 2156. Corresponding to the shape of the upper end of the chopping edge 226, the through groove 2156 is formed at the lower end of the first inner protrusion 2155, thereby allowing the lower end of the first inner protrusion 2155 and the upper end of the chopping edge 226 to overlap. Simultaneously, the radial length of the chopping edge 226 can be longer, thus improving cutting efficiency.

[0145] Figure 10 The illustration shows a modified example of the positional relationship between the first inner protrusion 2155 and the chopping edge 226. In this embodiment, the lower end of the first inner protrusion 2155 and the chopping edge 226 do not overlap but are spaced apart from each other. That is, the upper end of the chopping edge 226 is located below the lower end of the first inner protrusion 2155.

[0146] However, in this embodiment, a through groove can also be formed that extends through both sides of the lower end of the first inner protrusion 2155 and curves upward. In this case, the through groove provides space for the material broken by the first inner protrusion 2155 and the chopping edge 226 to be discharged smoothly in the circumferential direction. If a hard vegetable or fruit, such as a carrot, is caught in the first inner protrusion 2155, it will generate a large load. However, by utilizing the space ensured by the through groove, the material broken by the first inner protrusion 2155 and the chopping edge 226 can be discharged smoothly.

[0147] Furthermore, at least one second inner protrusion 2157 may be formed on the inner side of the hopper 210. This second inner protrusion 2157 protrudes radially inward from the upper part of the position at the end of the cutting blade 227. The second inner protrusion 2157 can interact with the cutting blade 227. As the cutting blade 227 rotates, part of the juice material on the bottom plate surface of the hopper 210 is pushed into the discharge hole 217, and part gradually moves radially outward by centrifugal force. At this time, there is a possibility that the juice material located above the cutting blade 227 may not flow into the discharge hole 217 and instead spin idly on the upper part of the cutting blade 227. At this time, the juice material pushed outside the upper part of the cutting blade 227 by centrifugal force may collide with the second inner protrusion 2157 and fall off the cutting blade 227.

[0148] In this embodiment, the second inner protrusion 2157 is formed below the first inner protrusion 2155. Furthermore, a discharge hole 217 is formed vertically below the first inner protrusion 2155 and the second inner protrusion 2157, allowing the juice material cut and detached by the first inner protrusion 2155 and the second inner protrusion 2157 to fall vertically downwards and be directly supplied into the juicer cylinder 280 through the discharge hole 217.

[0149] The screw 230, the juicing separator 260, and the juicing cylinder 280, which constitute the juicing section 200 and are located below the hopper 210, will now be described. First, refer to... Figures 17 to 20 Explanation of screw 230.

[0150] Figure 17 yes Figure 4 A 3D view of the screw shown. Figure 18 yes Figure 17 Side view, Figure 19 It is a diagram. Figure 17 A three-dimensional view of the bottom surface of the screw shown. Figure 20 yes Figures 17 to 19 The example shown is a modified version of the screw.

[0151] The screw 230 is installed inside the juice separator 260 to receive rotational force from the drive shaft 130 of the main body 100 and rotate, and together with the juice separator 260, it squeezes and crushes the juice material.

[0152] The screw 230 may include a screw body 231 and a screw thread 232 that is helically protruding on the outer side of the screw body 231.

[0153] As shown in the figure, the screw body 231 can be divided into an upper part and a lower part with the area near the largest radius of the screw body 231 as the center. At this time, the upper part forms a cutting zone for further cutting the juicing material fed from the hopper 210, and the lower part forms a juicing zone below the cutting zone for formally squeezing the juicing material to generate juice.

[0154] The lower part of the screw body 231 is formed such that the radius gradually decreases towards the bottom. By setting it to have a smaller radius towards the bottom, a space can be formed where the juice is separated by compression. However, the shape of the lower part of the screw body 231 is not limited to this; for example, it can be formed into a straight line downwards without any change in radius.

[0155] Furthermore, the upper part of the screw body 231 is formed such that the radius gradually decreases towards the top, as shown in the figure. Compared to the lower part of the screw body 231, the radius variation with height is greater in the upper part. The screw body 231 has the smallest radius at its foremost point and gradually increases towards the bottom. This shape creates a space for larger materials to be compressed and crushed, gradually reducing their size and being transported. In other words, the diameter of the upper part of the screw body 231 gradually increases towards the bottom, so the size of the space for material transport formed by the screw body 231 and the screw thread 232 gradually decreases along the material transport direction. That is, through the rotation of the screw 230, the material is compressed and crushed, gradually reducing its size, and moves along the downward-forming screw thread 232 and along the gradually decreasing transport space to the bottom of the screw 230.

[0156] The screw thread 232 protrudes in a helical shape on the outer circumferential surface of the screw body 231. Through this screw thread 232, the juicer is squeezed and moved downwards through the narrow gap between the screw 230 and the juice separation cylinder 260. Preferably, the screw thread 232 protrudes in a manner that contacts or approaches the juice separation cylinder 260. As described above, the radius of the upper part of the screw body 231 decreases towards the top, therefore the protrusion height of the screw thread 232 increases towards the top of the screw body 231.

[0157] In this invention, one or more screw threads 232 can be formed. A single-edged screw 230 can be used, which is formed by extending one of the screw threads 232 (first screw thread 232-1) towards the upper end of the screw body 231 and forming a single edge 2321 at the upper end of the screw body 231. Using a double-edged screw formed by symmetrically extending two screw threads towards the upper end of the screw body 231 would generate a large load; therefore, a single-edged screw 230 is used in this invention, but it is not a limitation.

[0158] At this point, the radius of the single blade 2321 at the upper end of the screw body 231 in this invention can be larger than the maximum radius of the screw body 231, thus the single blade 2321 is formed to protrude more outward. In this way, while maintaining the same size as before, setting the radius of the single blade 2321 to be larger than the maximum radius of the screw body 231 ensures a wider space for the juicing material to be fed in from the top. This allows the finely divided juicing material in the upper hopper 210 to be fed more smoothly into the screw 230.

[0159] As shown in the figure, a second screw thread 232-2, spirally formed from the upper part of the screw body 231 in the juicing section downwards, can be formed. Multiple third screw threads 232-3 can be formed between the first screw thread 232-1 and the second screw thread 232-2 in the lower part of the screw body 231. Therefore, the width between adjacent screw threads 232 formed on the screw body 231 is set to have a relatively wide interval in the upper part of the screw body 231, and a relatively narrow interval through multiple screw threads 232 in the lower part of the screw body 231. That is, the cutting section, which is the upper part of the screw 230, can mainly perform the function of crushing larger juicing objects, while the juicing section, which is the lower part of the screw 230, can crush and squeeze through the rotation of the screw 230, thereby mainly performing the juicing function.

[0160] Furthermore, multiple slag guide ribs 235 protruding outward from the lower radius of the screw body 231 can be formed in the circumferential direction. The slag guide ribs 235 are used to sweep down the slag that is separated by the juice during the rotation of the screw 230 and transferred to the juice separation cylinder 260. In this way, by forming the slag guide ribs 235 on the outer circumferential surface of the lower radius of the screw 230, the slag stuck under the juice separation cylinder 260 can be easily removed, thereby further improving the juicing efficiency.

[0161] The upper rotating shaft 233 of the screw 230, which protrudes above the upper end of the screw body 231, is formed as an angled shaft and is connected to the angled shaft hole 2192 of the power transmission part 219 to transmit power to the cutting part 225.

[0162] Furthermore, the lower rotating shaft 234 of the screw 230, which protrudes downward from the hollow interior of the screw body 231, is formed into an angular shaft hole, into which the angular drive shaft 130 protruding from the upper part of the body 100 is inserted, and power is received from the motor 1001. As described in the connection structure between the upper rotating shaft 233 of the screw 230 and the power transmission part 219, the drive shaft 130 can also be formed as an n-sided angular shaft, and the lower rotating shaft 234 of the screw 230 can be formed as a 2n-sided angular shaft hole, thereby facilitating the connection of the two components. For example, when the drive shaft 130 is formed as a hexagonal angular shaft, the lower rotating shaft 234 of the screw 230 can be formed as a 12-sided angular shaft hole.

[0163] A grip portion 236 may be formed at the upper end of the screw body 231. The grip portion 236 may be formed at the upper end of the screw body 231 in such a way that it protrudes at a predetermined horizontal angle to the single blade 2321. This is for reasons such as washing, so that the user can grasp the screw 230 installed in the juicing cylinder 280 together with the single blade 2321 and easily remove it.

[0164] Figure 20 The above-described modified example of the screw 230 is shown in the figure. In this embodiment, an anti-overfeeding rib 239 is formed at the junction of the upper and lower parts of the screw 230 between the cutting section and the juicing section. The rib protrudes from the screw body 231 in a circular ring or in a belt shape along the circumferential direction with a specified thickness.

[0165] The overfeeding rib 239 is used to prevent overloading of the juicing zone due to the pressure of the screw 230 when a large amount of juicing material is suddenly supplied to the juicing zone in the cutting zone. Because of the overfeeding rib 239, the gap between the screw 230 and the juice separator 260 is reduced, thus preventing a large amount of juicing material from being suddenly fed into the space between the screw 230 and the juice separator 260.

[0166] Apart from the anti-over-injection rib 239, the rest of the screw 230's structure is the same as described above, so the description of the same structure is omitted.

[0167] Below, refer to Figures 21 to 23 The juice separation cylinder 260 of the present invention will be described in more detail below.

[0168] Figure 21 and Figure 22 yes Figure 4 An exploded perspective view of the juice separation cylinder shown. Figure 23 This is a partial cross-sectional view of the juice separation cylinder combined with a three-dimensional perspective.

[0169] As shown in the figure, the juice separation cylinder 260 of the present invention can be constructed by combining an inner module 240 and an outer module 250. Here, the inner module 240 and the outer module 250 can be formed of a material such as polyetherimide (PEI).

[0170] The inner module 240 is generally cylindrical in shape and its upper and lower sides are open. Here, the inner module 240 includes a plurality of inner plate portions 241, through which a plurality of slits 242 are formed along the vertical length direction.

[0171] Here, the inner plate portion 241 is named for ease of explanation of the present invention. When the cylindrical module is divided into a hole portion forming a slit 242 and a plate portion without a slit 242, the plate portion without a slit 242 is defined as "inner plate portion 241".

[0172] At this time, the width of the upper slit 242 can be smaller than the width of the lower slit 242. That is, the width of the slit 242 can become narrower towards the upper side.

[0173] Furthermore, multiple first ribs 244 protruding long along the vertical length direction can be formed on the inner circumferential surface of the inner module 240. As the screw 230 rotates, the first ribs 244 interact with the screw thread 232 to compress or crush the material. Without the first ribs 244, the material being juiced may not be able to move downwards and may stagnate, or the compressing or crushing force may be insufficient or impossible to occur. In this case, the first ribs 244 can be formed on one side of the slit 242 of the inner module.

[0174] Furthermore, a predetermined number of second ribs 243 protruding elongated along the vertical length direction are formed on the inner surface of the inner module 240 along the circumferential direction. The second ribs 243 function to move the juicing material fed into the juice separator 260 to the lower part and to crush the juicing material. The second ribs 243 also function to enhance the rigidity of the inner module 240 and to guide the juicing material into the juice separator 260. Moreover, the second ribs 243 can adjust the position of the screw 230 and adjust the juicing space.

[0175] The second rib 243 can be formed such that its protrusion height is the same from the upper part to the lower part of the inner module 240, but preferably it can be formed into a shape that gradually decreases in height from the upper part of the inner module 240 towards the lower part. Furthermore, the second rib 243 can be formed to slope downwards from the upper part of the inner module 240 towards the lower part, and a stepped portion 2431 protruding towards the screw 230 to form a step can be formed in its middle portion. Depending on the shape of the screw 230 and the design conditions of the screw thread 232, the position, number, or protrusion height of the stepped portion 2431 can be varied. Considering design conditions and juicing efficiency, the number and arrangement of the second rib 243 can be changed as needed. In the embodiment of the present invention, the example of the second rib 243 being formed vertically along the vertical direction of the inner module 240 has been described, but the scope of the present invention is not limited thereto.

[0176] At this time, the first rib 244 is formed on the lower inner side of the inner plate portion 241 (more specifically, on one side of the cut 242), and the second rib 243 is integrally formed on the inner side of the inner plate portion 241 from top to bottom.

[0177] As shown in the figure, the upper end of the inner module 240 has an expansion portion that expands with increasing radius towards the top. The upper end of the inner module 240 expands in a trumpet shape, so the single blade 2321 at the upper end of the screw 230 can rotate undisturbed inside the expansion portion 245.

[0178] Furthermore, a material inflow guide 246 may be formed on one side of the expansion portion 245, and the material inflow guide 246 is a curved surface that gradually curves inward along the rotation direction of the screw 230. Without the material inflow guide 246, the juicing material may not flow downward and may instead spin freely on the expansion portion 245 along with the single blade 2321. However, when the juicing material rotates together with the single blade 2321, it is guided by contact with the material inflow guide 246, allowing it to detach from the single blade 2321 and move downward. Furthermore, by forming the material inflow guide 246 with a gentle curve, the problem of material getting stuck in the material inflow guide 246 can be solved. The top surface of the material inflow guide 246 is formed to be unaffected by the bottom surface of the single blade 2321.

[0179] At this time, the material inflow guide 246 can be integrally formed with the second rib 243 at its upper end. Furthermore, multiple material inflow guides 246 can be formed at intervals in the circumferential direction. For example... Figure 11As shown, preferably, at least one of the material inflow guides 246 is located below the discharge hole 217 of the hopper 210. The material inflow guides 246 located below the discharge hole 217 cause hard juicing material or relatively large pulverized juicing material to stagnate inside the hopper 210 and be adequately cut by the cutting section 225.

[0180] The inner module 240 has a predetermined number of protruding insertion protrusions 247 on its lower end face. When the inner module 240 and the outer module 250 are combined, the insertion protrusions 247 are inserted into the insertion grooves 258 formed on the bottom surface of the outer module 250, thereby combining the inner module 240 and the outer module 250.

[0181] Next, the outer module 250 will be described. The outer module 250 is generally cylindrical in shape and is composed of an outer plate portion 251 that is open on the upper and lower sides and ribs that protrude from the inner side of the outer plate portion 251.

[0182] The outer panel 251 internally accommodates the inner module 240, and the outer module 250 and the inner module 240 are detachably coupled. That is, when the outer module 250 is coupled to the inner module 240, it can be coupled to the inner module 240 in a manner that internally accommodates and surrounds the inner module 240. At this time, the outer module 250 can cover and support the inner module 240.

[0183] When the outer module 250 and the inner module 240 move up and down and engage, the rib 252 is inserted below the slit 242 of the inner module 240 and engages with the slit 242. At this time, a fine gap is formed between the slit 242 and the rib 252, through which the juice generated inside the juice separator 260 can be discharged to the outside.

[0184] Thus, in this embodiment, the slit 242 of the inner module 240 and the rib 252 of the outer module 250 are combined to form an outlet hole through which juice is discharged through the gap between the slit 242 and the rib 252, which makes it very easy to wash.

[0185] At this time, the rib 252 can be formed in a shape corresponding to the cut 242. In order to make the width of the rib 252 narrower towards the upper side, the width of the upper side rib 252 can be smaller than the width of the lower side rib 252.

[0186] According to the shapes of the ribs 252 and the slits 242 as described above, when the outer module 250 and the inner module 240 are moved up and down to join, the upper part of the relatively narrow ribs 252 is inserted into the lower part of the relatively wide slits 242, thereby making it easy to join the outer module 250 and the inner module 240.

[0187] Furthermore, a plurality of drain holes 253 may be formed on the lower end side of the outer side plate portion 251.

[0188] In this way, the juice formed inside the juice separation cylinder 260 formed by the combination of the inner module 240 and the outer module 250 can be discharged to the outside of the juice separation cylinder 260 through the tiny gap formed between the slit 242 of the inner module 240 and the rib 252 of the outer module 250, i.e., the slit hole, and the juice discharge hole 253 formed on the outer module 250.

[0189] At this point, the gap formed between the slit 242 and the rib 252 is preferably configured such that the width of the gap gradually increases in the radial direction to facilitate the drainage of juice. For example, if the width of the slit 242 is configured to gradually increase towards the radial direction, the size of the gap gradually increases in the radial direction.

[0190] Furthermore, the gap is preferably formed such that the width of the gap decreases as it goes down the length direction, thereby preventing the slag generated by the finer crushing at the bottom from being discharged through the gap, and supporting the strong pressure brought by the screw 230.

[0191] A predetermined number of cylinder fixing portions 259 protruding horizontally are formed at the upper end of the outer module 250, which can be inserted into the cylinder fixing groove 2802 formed at the upper end of the juicing cylinder 280, which will be described later, thereby fixing the position of the juice separation cylinder 260 inside the juicing cylinder 280.

[0192] Furthermore, a predetermined number of recessed insertion slots 258 are formed on the lower end surface of the outer module 250. When the inner module 240 and the outer module 250 are combined, the insertion protrusion 247 is inserted into the insertion slots 258 formed on the bottom surface of the outer module 250, thereby combining the inner module 240 and the outer module 250.

[0193] In this embodiment, a juice separation cylinder 260 with an outlet hole formed by the combination of the inner module 240 and the outer module 250 is used. However, it is also acceptable to use a conventional mesh cylinder with multiple circular mesh holes formed on its surface. In this embodiment, a rib 252 is formed on the outer module 250, a slit 242 is formed on the inner module 240, and an outlet hole for discharging juice is formed when the inner module 240 and the outer module 250 are combined. However, it is also possible to form the outlet hole for discharging juice by forming the aforementioned rib 252 on the inner side of the juicing cylinder 280 and inserting the inner module 240 without additionally forming the outer module 250.

[0194] Below, refer to Figures 24 to 28 The juicing cylinder 280 of the present invention will be described in more detail below.

[0195] Figure 24 yes Figure 4 The image shows a partial sectional perspective view of the juicing cylinder. Figure 25 It is a diagram. Figure 24 A 3D view of the juicing cylinder with the juice cap open. Figure 26 It is a diagram. Figure 27 A perspective view of the back of the juice cap shown. Figure 27 It is a diagram. Figure 24 A three-dimensional view of the bottom surface of the juicer cylinder shown. Figure 28 yes Figure 27 A three-dimensional view of the lower end of the slag discharge port.

[0196] The juicing cylinder 280 has an overall cylindrical container shape, which houses the juice separation cylinder 260 and the screw 230 inside, and the hopper 210 can be attached to the upper part as described above.

[0197] A waterproof cylinder 281 protrudes upward from the center of the bottom surface of the juicing cylinder 280. This waterproof cylinder 281 has a through hole 2805 into which the lower rotating shaft 234 of the screw 230 can be inserted and connected to the drive shaft 130. The upward protrusion of the waterproof cylinder 281 prevents juice from flowing into the drive shaft 130 through the through hole 2805. Furthermore, a filler ring 2811 made of rubber or silicone is inserted into the edge of the through hole 2805 to more effectively block juice from flowing into the drive shaft 130. As shown in the figure, in this invention, a double filler can be used, fixed between the upper and lower sides of the upper end of the waterproof cylinder 281, to simultaneously fill both sides.

[0198] At the lower outer end of the juicing cylinder 280, a juice outlet 285 for discharging juice and a residue outlet 284 for discharging residue can be provided at mutually spaced positions.

[0199] Multiple engaging protrusions 2801 are formed on the inner edge of the upper part of the juicing cylinder 280. A connecting protrusion 2174, formed on the outer edge of the lower end of the hopper housing 215, is positioned between the engaging protrusions 2801. The hopper 210 is gently pressed downwards and rotated so that the connecting protrusion 2174 is positioned below the engaging protrusions 2801, thereby connecting the juicing cylinder 280 and the hopper 210. At this time, the engaging protrusions 2801 have anti-rotation ridges 2803 at their ends in the engagement direction, thus preventing further rotation of the connecting protrusions 2174 and maintaining the engagement between the two components 210 and 280.

[0200] Furthermore, when the engaging protrusion 2174 of the hopper 210 is positioned in the space between two adjacent engaging protrusions 2801, a relatively wide space is preferably ensured between the two engaging protrusions 2801 in order to allow the engaging protrusion 2174 to move sufficiently in the left and right directions. As described above, in this invention, the lower rotating shaft 234 of the screw 230 is constructed of an n-sided angular shaft, and the shaft hole of the power transmission part 219 is constructed of a 2n-sided angular shaft hole. Therefore, ensuring a relatively wide space is to allow the user to grasp the hopper 210 and rotate it to determine the position for inserting the power transmission part 219 into the lower rotating shaft 234 of the screw 230, thus ensuring rotational space.

[0201] Furthermore, a fixing groove 2804 is formed on the outer side of the bottom surface of the juicing cylinder 280, which is combined with a fixing protrusion 122 formed on the upper end surface of the main body 100 on which the drive shaft 130 is formed, so that the juicing cylinder 280 can be fixed on the upper part of the main body 100.

[0202] A first circular protrusion 282 is formed at a predetermined distance from the inner side of the juicing cylinder 280 on the bottom plate surface. An outer module 250 of the juice separator 260 is mounted on the inner side of the first circular protrusion 282. At this time, juice separated from the juice separator 260 can be stored on the circular bottom plate surface between the inner side of the juicing cylinder 280 and the first circular protrusion 282 and discharged through the juice outlet 285. Preferably, the circular bottom plate surface is inclined towards the juice outlet 285 so that the juice flows towards the juice outlet 285 under its own weight.

[0203] Furthermore, a second circular protrusion 283 is formed around the waterproof cylinder 281 on the bottom plate of the juicing cylinder 280. An inner ring 237 of the screw 230 is installed in the space between the second circular protrusion 283 and the waterproof cylinder 281, and an outer ring 238 is installed on the outer side of the second circular protrusion 283 to fix the position of the screw 230.

[0204] At this time, the present invention forms a stainless steel embedded ring 2381 on the inner side of the outer ring 238 to reduce wear caused by friction between the outer ring 238 and the second circular protrusion 283.

[0205] In order to discharge the juice separated inside the juice separator 260, a slag discharge hole 2806 is formed on one side of the outer bottom plate surface of the second circular protrusion 283. The slag discharge hole 2806 is connected to the slag discharge port 284, so that the slag inside the juice separator 260 can be discharged to the outside.

[0206] A residue packing 287 made of an elastic material such as rubber or silicone can be formed on the residue discharge hole 2806. On the bottom surface of the juicing cylinder 280, one end of the residue packing 287 is fixed, while the other end is fixed in a way that allows free rotation. When no external force is applied inside the juice separation cylinder 260, the residue packing 287 closes the residue discharge hole 2806. When an external force is applied, the residue packing 287 undergoes elastic deformation, opening the residue discharge hole 2806. Therefore, the residue inside the juice separation cylinder 260 reaches the bottom plate surface of the juicing cylinder 280 and pushes the residue packing 287 out through the residue discharge port 284.

[0207] In this invention, the slag discharge port 284 is not formed in a shape that is fixed to one side of the juicing cylinder 280, but can be formed in a structure that opens and closes by rotation.

[0208] As shown in the figure, the slag discharge hole 2806, which is fixed to the slag packing 287, and the upper part forming the slag discharge port 284 are integrally formed on the body 100 of the juicing cylinder 280. The lower end portion 2842 of the slag discharge port 284 is rotatably hinged to the bottom surface of the juicing cylinder 280. A packing ring 2844 is installed on the top surface of the lower end portion 2842 of the slag discharge port in a manner that surrounds the slag discharge hole 2806 to prevent juice or slag from leaking out. A U-shaped retaining ring 2843 is rotatably connected to one side of the end portion of the lower end portion 2842 of the slag discharge port.

[0209] Therefore, if the lower end 2842 of the slag discharge port is rotated to fit tightly against the bottom plate of the juicing cylinder 280, and the fixing ring 2843 is rotated and fixed to the upper end of the slag discharge port 284 and the part 2849 protruding outward from the juicing cylinder 280, a slag discharge port 284 for discharging slag discharged through the slag discharge hole 2806 is formed.

[0210] Conversely, if the retaining ring 2843 is rotated to disengage the connection and the lower end 2842 of the slag discharge port is rotated downward, the slag packing 287 can be exposed to the outside, and the user can clean the slag packing 287 and the inner surface of the slag discharge port 284.

[0211] A juice cap 286 is rotatably attached to the end of the juice outlet 285. The juice cap 286, which is rotatably hinged to the upper part of the juice outlet 285, can open and close the juice outlet 285. To prevent juice from flowing out of the juice outlet 285, a packing 2861 is snapped into the inside of the juice cap 286.

[0212] The main body 100 according to an embodiment of the present invention will now be described.

[0213] Figure 29 yes Figure 2 An exploded 3D view of the main body shown. Figure 30 yes Figure 3The diagram shows a three-dimensional view of the opening and closing sensor. Figure 31 yes Figure 29 An exploded perspective view of the moving motor shaft shown. Figure 32 This is a partial sectional perspective view of the moving motor shaft used to illustrate its operation.

[0214] The main body 100 may be composed of a lower main body portion 120 and an upper main body portion 110.

[0215] The lower main body 120 is supported by the bottom plate, and a drive shaft 130 protrudes from the top surface of the lower main body 120, which is rotated by a motor 1001 at a reduced speed. When the juicing part 200 is connected to the drive shaft 130, the lower rotating shaft 234 of the screw 230 can be inserted into the drive shaft 130 and transmit the rotational force of the drive shaft 130 to the screw 230.

[0216] A power cord 102 is connected to one side of the lower end of the lower main body 120, so that power can be received from the outside. Inside the lower main body 120, a motor 1001 driven by an external power source and a reduction gear 1002 are formed. The reduction gear 1002 is formed by multiple gears and is used to reduce the rotational speed of the motor 1001 and transmit it to the drive shaft 130.

[0217] The upper main body portion 110 protrudes upward from one side of the lower main body portion 120, thereby supporting the outer surface of the juicing portion 200 when it is attached to the lower main body portion 120. A control button 104 for controlling the operation of the juicer may be formed on the outer surface of the upper main body portion 110.

[0218] As shown in the figure, an anti-rotation key 112 protruding a predetermined length along the length direction can be formed on the inner side of the upper main body 110. Corresponding to the anti-rotation key 112, an anti-rotation keyway 2159 for inserting the anti-rotation key 112 is formed on the outer side of the hopper 210. Figure 5 As shown, the anti-rotation keyway 2159 can be integrally formed under the anti-interference groove 2154.

[0219] When the juicing section 200 is attached to the main body 100, the anti-rotation key 112 is inserted into the anti-rotation keyway 2159 and engaged. Therefore, based on the engagement structure of the anti-rotation keyway 2159 and the anti-rotation key 112, the circumferential position of the juicing section 200 can be fixed. Furthermore, when the screw 230 reverses, the locking between the juicing cylinder 280 and the hopper 210 can be released, and this problem is prevented by blocking the rotation of the hopper 210 through the engagement structure.

[0220] As described above, for user safety, the hopper 210 cannot be snapped onto the upper part of the juicing cylinder 280 when only the juicing cylinder 280 is installed on the main body 100. The juicing part 200 can only be connected to the main body 100 when the hopper 210 is snapped onto the juicing cylinder 280. The hopper 210 and the juicing cylinder 280 are fixed together by the engagement between the engagement protrusion 2174 and the snapping protrusion 2801. If it is desired to rotate the engagement protrusion 2174 and the snapping protrusion 2801 to connect the juicing cylinder 280 and the hopper 210 when only the juicing cylinder 280 is installed on the main body 100, the connection cannot be achieved because the positions of the anti-rotation keyway 2159 and the anti-rotation key 112 are mismatched. Furthermore, when the hopper 210 is fixed to the upper main body 110 by aligning the anti-rotation keyway 2159 and the anti-rotation key 112, the positions of the engaging protrusion 2174 and the snap-fit ​​protrusion 2801 cannot be aligned with each other for engagement. Therefore, in this invention, the juicing unit 200 can only be attached to the main body 100 when the juicing cylinder 280 is attached to the hopper 210.

[0221] A slag discharge connection hole 113 communicating with a slag discharge port 284 is formed on one side of the bottom surface of the upper main body 110. Furthermore, a slag collection cup 125 is detachably installed on one side of the lower main body 120. When the slag collection cup 125 is integrated into the lower main body 120, it can store the slag discharged through the slag discharge port 284, the end of which is inserted into the slag discharge connection hole 113.

[0222] An opening / closing sensor 115 for sensing the opening and closing of the cover 220 can be fixedly installed inside the upper main body 110.

[0223] like Figure 30 As shown, the opening / closing sensing unit 115 can be formed by a microswitch, and a second magnet 1102 is fixed to the end of the outwardly extending rotating rod 1151. The second magnet 1102 generates a magnetic force with the first magnet 2211 fixed to the magnet mounting portion 221 of the cover portion 220. When the cover portion 220 is opened or closed, the magnet mounting portion 221 rotates, and the magnetic force between the first magnet 2211 and the second magnet 1102 (which generates attraction or repulsion depending on the polarity of the first magnet 2211 and the second magnet 1102) changes. As the magnetic force changes, the position of the second magnet 1102 changes. Therefore, according to the change in the position of the second magnet 1102, the rotating rod 1151 moves so that the sensing unit in the opening / closing sensing unit 115 senses the opening / closing state of the cover portion 220.

[0224] When the cover 220 is opened, the power supply to the motor 1001 is cut off to prevent the screw 230 from rotating.

[0225] A drive shaft 130 protrudes from the top surface of the lower main body 120. Although the lower rotating shaft 234 can be directly connected to the drive shaft 130, a flow drive shaft is used in this invention to enable automatic connection between the drive shaft 130 and the lower rotating shaft 234 of the screw 230. The structure of the flow drive shaft will be described in detail below.

[0226] The drive transmission part 310 is inserted into and engaged with the drive shaft 130 protruding outward from the main body 100. At this time, the drive shaft 130 can be formed as an angular shaft, the drive transmission part 310 can be formed as an angular shaft hole, and the drive transmission part 310 can be engaged with the drive shaft 130 by mutual matching, so that the drive transmission part 310 can rotate together with the drive shaft 130.

[0227] To describe the shape of the drive transmission unit 310 in more detail, the drive transmission unit 310 includes a motor shaft coupling portion 311 formed with an angular shaft hole and engaging with an angular drive shaft 130, and a screw coupling portion 312 formed with an angular shaft on the upper part of the motor shaft coupling portion 311. The screw coupling portion 312 matches the lower rotating shaft 234 of the screw 230, which is formed with an angular shaft hole.

[0228] At this time, a helical spring 315 is disposed between the drive transmission part 310 and the drive shaft 130, allowing the drive transmission part 310 to move elastically axially on the drive shaft 130. More specifically, a spring insertion shaft 317 is formed extending upward from the upper end of the drive shaft 130, and the helical spring 315 can be sleeved on the spring insertion shaft 317. At this time, a head 318 with a radially stepped shape towards the shaft can be further formed at the upper end of the spring insertion shaft 317. At this time, the spring insertion shaft 317 as described above can be constituted by a screw 319 threaded to the upper end of the drive shaft 130.

[0229] Furthermore, a stepped hole 313 is formed at the upper end of the angular shaft hole of the motor shaft connection portion 311, with a step extending towards the shaft center. The upper end of the spring insertion shaft 317 can be inserted into the stepped hole 313. At this time, when the drive transmission portion 310 moves downward on the shaft, the step formed by the stepped hole 313 contacts the upper end of the drive shaft 130, thereby constituting the lower limit of the drive transmission portion 310.

[0230] Furthermore, a stepped locking groove 3111 may be formed at the lower end of the motor shaft coupling portion 311, and a protruding locking ridge 132 may be formed at a predetermined position on the outer peripheral surface of the drive shaft 130, so that the locking groove contacts the locking ridge when the drive transmission portion 310 moves downward on the shaft, thereby forming the lower limit of the drive transmission portion 310.

[0231] An inner protrusion 314 protruding inward toward the center of the axis can be formed in the middle of the stepped hole 313. When the drive transmission part 310 moves downward toward the axis, the inner protrusion 314 contacts the upper end of the coil spring 315 and compresses the coil spring 315. Moreover, when the drive transmission part 310 moves upward toward the axis through the elastic potential energy of the coil spring 315, the inner protrusion 314 contacts the head 318, at which time the head 318 forms the upper limit of the drive transmission part 310.

[0232] Furthermore, a cover 3101 for blocking the opening can be formed at the upper end of the drive transmission section 310. The screw 319 is inserted into and engaged with the drive shaft 130 through the upper opening of the drive transmission section 310. At this time, a step can be formed at the upper end of the drive transmission section 310, and the cover 3101 is installed on the step to cover the upper opening of the drive transmission section 310. In this case, the cover 3101 prevents juice from seeping between the head 318 of the screw 319 and the inner surface of the screw joint 312.

[0233] Therefore, when there is no force to drive the transmission unit 310 through pressure from top to bottom, such as Figure 32 As shown in (a), the drive transmission part 310 is in its upper limit position due to the elastic force of the coil spring 315. When pressure is applied to the drive transmission part 310 from top to bottom, the drive transmission part 310 moves downward along the shaft, and as shown in (a). Figure 32 As shown in (b), the position is at the lower limit. At this time, the helical spring 315 is compressed and retains its elastic potential energy. When the pressure on the upper part of the drive transmission unit 310 is released, the drive transmission unit 310 elastically moves back to the upper limit position due to the elastic potential energy of the helical spring 315.

[0234] When the juicing unit 200 is installed on the main body 100, when the lower rotating shaft 234 of the screw 230 matches the screw coupling part 312 of the drive transmission unit 310, the driving force of the drive shaft 130 can be transmitted to the screw 230 through the drive transmission unit 310.

[0235] Conversely, when the lower rotating shaft 234 of the screw 230 does not match the screw engagement portion 31 of the drive transmission portion 310, the screw 230 presses on the drive transmission portion 310 to move the drive transmission portion 310 downwards.

[0236] In this state, if the motor 1001 is rotated, the drive transmission part 310 connected to the drive shaft 130 will rotate, and the screw engagement part 312 on the upper part of the drive transmission part 310 will be positioned to match the lower rotating shaft 234 of the screw 230. At this time, due to the elastic potential energy of the helical spring 315, the drive transmission part 310 will elastically move upward on the shaft and automatically match the lower rotating shaft 234, thus transmitting the driving force of the drive shaft 130 to the screw 230.

[0237] This invention is not limited to the embodiments described above, but can be implemented in various forms within the scope of the claims. Therefore, all modifications that can be made by those skilled in the art without departing from the spirit of the invention as claimed in the claims are within the scope of protection of this invention.

Claims

1. A juicer, characterized in that, include: Juicing cylinder, which contains a screw for squeezing the juicing material; A hopper, attached to the upper part of the juicing cylinder, forms a space for receiving the juicing material; and The cutting section is used to rotate within the hopper to crush or cut the juicing material placed inside the hopper. The cutting section is supported only at the lower end of the hopper, and an open space is formed on the upper side of the rotation center of the cutting section without a supporting structure spanning the upper part of the cutting section. This open space opens the entire upper side of the cutting section so that the juicing material can be placed inside. The cutting section includes a chopping blade extending upward from the rotation center of the cutting section toward the inner side of the hopper; The cutting blade extends horizontally from the center of rotation on the lower end face of the hopper and also has a predetermined thickness in the vertical direction, so as to push the juicing material forward in the direction of rotation. The juicer has a first inner protrusion that protrudes from the inner surface of the hopper. The first inner protrusion interacts with the chopping blade to support the juicing material when the cutting section rotates. The juicer uses the chopping blade to crush or cut the juicing material placed into the open space on the upper side of the rotation center. After the juicing material is crushed or cut by the chopping blade and conveyed to the bottom of the hopper, the juicer pushes the juicing material forward in the rotation direction and supplies the juicing material into the interior of the juicing cylinder located below the hopper through the discharge hole formed on the bottom surface of the hopper.

2. The juicer according to claim 1, characterized in that, The cutting edge is formed in such a way that the inclined surfaces at the front and rear meet in the direction of rotation.

3. The juicer according to claim 2, characterized in that, A cutting edge is formed at the upper end of the cutting edge.

4. The juicer according to claim 1, characterized in that, The hopper includes: A sleeve portion is formed in a connecting hole formed at the center of the lower end face of the hopper; and The power transmission part is inserted into a hole formed inside the sleeve part and rotates. A shaft hole is formed on the lower end of the power transmission part for the upper rotating shaft of the screw to be inserted. The upper end of the power transmission part protrudes upward above the sleeve part and is used to engage the cutting part. The outer side of the power transmission part inside the connecting hole is formed into a conical shape to correspond to the inner side of the sleeve part.

5. The juicer according to claim 1, characterized in that, A second inner protrusion is formed, which protrudes from the inner side of the hopper at the position where the end of the cutting blade is located and interacts with the cutting blade.

6. The juicer according to claim 5, characterized in that, The discharge hole is formed vertically below the first inner protrusion or the second inner protrusion.

7. The juicer according to claim 1, characterized in that, The upper end of the chopping blade extends close to the inner side of the hopper.

8. The juicer according to claim 1, characterized in that, The cutting edge bends in the opposite direction of rotation.

9. The juicer according to claim 1, characterized in that, The end of the cutting edge is formed such that the height of the end decreases as it moves further out radially.

10. The juicer according to claim 1, characterized in that, The chopping edge and the cutting edge extend from the center of rotation in opposite directions.

11. The juicer according to claim 1, characterized in that, The hopper includes: The hopper shell is open at the top and has the aforementioned cutting part installed on its lower end face; and The cover portion is hinged to the upper end of the hopper housing and is used to open and close the upper part of the hopper housing. The juicer has a safety guide that protrudes downward along the lower end of the cover and is inserted into the inner side of the upper end of the hopper.

12. The juicer according to claim 1, characterized in that, The hopper includes: The hopper shell is open at the top and has the aforementioned cutting part installed on its lower end face; and The cover portion is hinged to the upper end of the hopper housing and is used to open and close the upper part of the hopper housing. It also has a hole for inserting the juicing material or for inserting the push rod. The hole is formed on the upper side of the rotation center of the cut section.

13. The juicer according to claim 1, characterized in that, A slag discharge port for discharging slag is formed on the lower outer end of the juicing cylinder. The lower end of the slag discharge port is rotatably hinged to the bottom surface of the juicing cylinder, thereby forming the slag discharge port together with the bottom surface of the juicing cylinder.

14. The juicer according to claim 13, characterized in that, A retaining ring is rotatably attached to one end of the lower end of the slag discharge port. At the upper end of the slag discharge port that protrudes outward from the juicing cylinder, the lower end of the slag discharge port is fixed by rotating the retaining ring.

15. The juicer according to claim 1, characterized in that, On the inner side of the hopper, there are comb-shaped protrusions extending in the length direction along the circumferential direction, and the comb-shaped protrusions protrude inward toward the inner side of the hopper.

16. The juicer according to claim 1, characterized in that, An inclined surface is formed on the edge of the discharge hole toward the discharge hole.

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