JPH041609B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention comprises a centrifugal separation cylinder which has a cutter for cutting material on the inner bottom and is rotated by a motor, and a centrifugal separation cylinder which is attached to the inner periphery of the separation cylinder and which cuts the material. The present invention relates to a juicer that is equipped with a cylindrical filter that separates the collected material into waste and liquid, and that collects the waste in a centrifugal separation cylinder.

(b) Prior Art This type of juicer is known, for example, from Japanese Utility Model Publication No. 10504/1983. The filter used in this juicer is formed into a comb-teeth shape to form vertical slits for discharging a large number of liquids, and debris adheres to and accumulates on the inner circumferential surface of the filter. In order to remove this adhered debris, the filter is elastically deformed, and the change in the spacing between the slits due to this deformation is relatively large at the lower end, but becomes smaller as it goes upward. Therefore, it is difficult to remove the scum, and the scum cannot be removed by simply washing with water, and the scum must be scraped off using a brush or the like, making it difficult to remove the scum.
This difficulty in removing debris has been the main reason for hesitation in using Jusa itself.

(c) Purpose of the Invention In view of the above-mentioned drawbacks, the present invention aims to provide an easy-to-use juicer and to maintain good juice squeezing efficiency by making it easy to remove waste.

(d) Structure of the Invention The structure of the present invention consists of a centrifugal separation tube that has a cutter on the inner bottom for cutting the material and is rotationally driven by a motor, and a centrifugal separation tube that is detachably attached to the inner circumference of the separation tube and holds the cut material. A juicer that is equipped with a cylindrical filter that separates waste and liquid, and that collects the waste in the centrifugal separation cylinder, wherein the cylindrical filter has a helical body having a spiral liquid flow gap that allows the interval to be expanded. The present invention is characterized in that, in the longitudinal cross-sectional shape of the spiral body, the cutting line of the inner surface of the adjacent step exists on the extension of the cutting line of the inner surface of each step.

Due to this configuration, waste adheres to and accumulates on the inner circumference of the filter, but by expanding and contracting the filter in the direction of the cylinder axis or deforming the cylinder axis in the perpendicular direction, the interval of the liquid flow gap changes greatly, so that the waste adheres to and accumulates on the inner circumference of the filter. If the filter is washed with the filter easily separated from the filter and the gap is widened, the debris stuck in the gap can be easily washed away. In addition, the filter's inner circumferential surface is formed substantially flat in the vertical direction, making it easy to move the scum in the vertical direction, making it difficult for scum to get stuck in the liquid flow gap, and allowing a large amount of scum to pass through the filter. This prevents it from being mixed into the liquid.

(E) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, referring to FIG. 1, what is shown in the drawing is a waste accumulation type pumper that can also function as a mixer by connecting a mixer attachment (not shown), and has a main body that includes a built-in electric motor (not shown), etc. A, a liquid generation section B having a centrifugal separation cylinder 29, etc., and a liquid extraction section C that receives and takes out the liquid generated in this generation section B.
It mainly consists of. The configuration of each part will be explained in detail below.

() About main body part A Referring to Fig. 2, 2 is a main body case which has a rectangular shape with four notched corners, has elastic legs 3 at the four corners of the lower surface, and has an electric motor suspended and supported by a support plate 4. A drive shaft 6 of the electric motor rotatably supported by a bearing 5 projects upward from an opening 7 on the upper surface of the case. This case 2 has a high step part 8 and a low step part 9 on the upper surface. A high-speed drive connector 10 is fixed to the upper end of the drive shaft 6, and is detachably connected to a connector (none of which is shown) provided on the lower surface of the mixer attachment. Reference numeral 11 denotes a low-speed drive connector that rotates at a low speed on its outer periphery in a biaxial manner concentric with the high-speed drive connector 10, and is rotatably supported by the drive shaft 6 through a bearing 12, and is connected to a deceleration mechanism such as pulleys 13, 14, belts 15, 16, etc. Drive shaft 6 via 17
The rotation is decelerated and transmitted.

This connector 11 has a large diameter part 11a formed in the upper part, engagement grooves 18 formed in the outer periphery of the large diameter part 11a, and a drain plate 19 attached to the lower end. Reference numeral 20 denotes a motor control operation section provided on the front surface of the main body case 2.

() Regarding the liquid generation section B First, referring to FIG. 2, 21 is a rectangular planar shape with four corners cut out to match the main body case 2, and is composed of a receiver 21a with an opening on the top surface and a container lid 21b that covers the top opening. In this container, the receiver 21a is connected to the fitting parts 22, 2 formed in the high step part 8 on the upper surface of the main case 2.
3 and is placed in a detachable manner, and has an opening 24 on the lower surface through which the connectors 10 and 11 are inserted, and a liquid outlet 25 is formed at a position facing the lower step 9 on the lower surface. There is. This outlet 25 has a container 2.
It is provided with a valve body 28 that is opened and closed by a knob 27 at the front right corner of 1a.

Referring to FIG. 4, 29 has a spiral filter 3 on the inner circumference.
0 is detachably attached to the centrifugal separation tube, which is detachably connected to the above-mentioned low-speed connector 11 and driven to rotate, and includes a base part 29a with a cutter 38 for cutting material fixed to the upper surface, and a base part 29a that can be attached and detached to this base part 29a. A substantially cylindrical tube portion 29b with a bottom, a base portion 29a, and a tube portion 29b.
and a ring body 29c for coupling with.

Each part will be explained in detail below. The platform part 29a is made of synthetic resin and consists of a horizontal part 31 and a cylindrical support part 32 that protrudes downward from the horizontal part 31. The protrusions 33 formed on the inner periphery of the lower part of the support part 32 are connected to the low-speed connector 11. are removably engaged with the grooves 18 on the outer periphery of the connector 11 , and the lower end portion 34 is fitted below the groove of the connector 11 to be removably connected to the low-speed connector 11 . Further, a plurality of temporary fixing protrusions 35 and a plurality of engagement protrusions 36 are formed on the outer periphery of the lower part of the support portion 32, and rotation preventing protrusions 37 are formed on the outer periphery of the upper end.

The cutter 38 is attached to the horizontal part 31 by screws or rivets, and forms cutting blades 39 radially from the center as cutting blades, and also performs re-cutting to finely re-cut the remaining material by cutting back on the periphery. A plurality of blades 40 are formed.

The cylindrical portion 29b is made of synthetic resin and has a cylindrical shape with an open top and a bottom as shown in FIG. It serves as a low stage section 52 for storage. The high step part 46 has an outer periphery 46a formed in a tapered shape that expands downward in order to facilitate the separation of debris accumulated on the low step part 52, and the support part 32 of the platform part 29a is fitted into the center part. A cylindrical fitting part 47 is formed, and the outer periphery of the upper end 32a of the support part 32 is brought into surface contact with the inner circumferential surface 47a of the upper end of the fitting part 47, and the horizontal part 3
1 to the upper surface 46a of the high step portion 46.
is in face contact with the This two-face contact between the horizontal and vertical surfaces reliably prevents wobbling between the base portion 29a and the cylindrical portion 29b, and improves the support strength.
48 is an engagement groove formed on the upper inner periphery of the fitting portion 47, into which the protrusions 37 of the base portion 29a are fitted to prevent rotation between the base portion 29a and the cylindrical portion 29b. 4
9... are locking claws formed discretely on the inner periphery of the lower end of the fitting part 47;
When fitted onto the holder 7, it is elastically deformed and engages over the protrusions 35, thereby temporarily fixing the two 29a and 29b.

In this temporarily fixed state, the ring body 29c is fitted around the outer periphery of the support part 32 of the base part 29a, and the cylindrical part 29b is held between the ring body 29c and the horizontal part 31,
This ensures the connection between both 29a and 29b.

The ring body 29c is connected to the protrusion 36 of the base portion 29a...
A protrusion 51 having a slope that engages with the bayonet is formed on the inner circumference, and a receiving surface 53 for receiving the lower end of the fitting portion 47 is formed on the upper end. Note that the support portion 32 and the ring body 29c may be connected by a threaded groove (not shown) instead of bayonet engagement.

Reference numeral 56 denotes the inner circumferential surface of the cylindrical portion 29b to which the filter 30 is attached, and has a tapered shape with a larger diameter at the top so that the separated liquid can easily rise. Forming a protrusion 57...
A liquid flow gap 58 is provided between the filter 30 and the outer circumferential surface of the filter 30.

59 is a filter locking protrusion formed at the lower end corner of the inner circumferential surface 56 to prevent rotation of the filter 30, and is formed on an extension of the protrusion, but is not limited to this. .

Note that the liquid flow gap 58 may be provided by forming a protrusion (not shown) on the outer circumference of the filter 30 instead of forming a protrusion on the inner circumferential surface 56.

Reference numeral 60 denotes a large diameter portion formed at the upper end of the inner circumferential surface 56, on which locking protrusions 62 of a lid 61 to be described later are integrally protruded inward.

63 is approximately L across the side and bottom surfaces of the cylindrical portion 29b.
With a fluid balancer formed in a letter shape, the side surfaces of the cylindrical portion 29b are formed into double walls 64 and 65 with an opening at the bottom, and
This lower opening is closed with a ring-shaped bottom cover 66 to form a sealed space, and an appropriate number of vertical resistance plates 67 are integrally provided in this space projecting from the outer wall 65 side, and a balancer is installed in this space. A suitable amount of liquid 68 is enclosed. The bottom cover 66 has a concave-convex fit between the lower end of the outer wall 65 and an inner end of the lower surface of the bottom step portion 52, and is welded and sealed, and this concave-convex fit improves sealing performance. The outer wall 65 has a tapered shape with a diameter increasing at the bottom to make the lower part of the sealed space wider than the upper part, thereby concentrating the liquid 68 downward and preventing the liquid from rising upward.

As shown in FIGS. 6 to 9, the spiral filter 30 is composed of a multi-stage cylindrical spiral body 30A made of synthetic resin, for example, ABS resin, and a spiral liquid flow gap 69 is formed between each stage. It has spring properties. This spiral body 30A is in a state where no force is applied in the direction of contraction in the cylinder axis direction (natural extension state)
As shown in FIG. 6, the molding is performed using a mold so that the gap 69 is expanded, and when the lid 61 is closed, it is compressed and the gap 69 becomes the optimally small state. When a force is applied in the direction of extension of the cylinder axis, the distance between the gaps 69 is further expanded, and when a force is applied in the horizontal direction, a lateral shift occurs between the steps, which also causes the distance between the gaps 69 to change in the left-right direction. It has the property of expanding. The length of the spiral body 30A in the cylindrical axis direction is longer than the depth of the cylindrical portion 29b even when the lid 61 is in the closed state and in the naturally extended state, making it easy to take out the filter 30.

Furthermore, by configuring the uppermost stage 30a and the lowermost stage 30b of the spiral filter 30 so that the end surfaces 70, 70 are flat surfaces with no steps (excluding the projections 82, which will be described later), the inner surface of the lid 61 and the cylindrical part 29b are A large gap is not formed between the inner bottom surface and the waste is prevented from flowing out. The height dimension of the above cross section can be changed by gluing ring-shaped bodies for height adjustment on the top and bottom surfaces of the spiral body with the same cross-sectional shape, or by changing the cross-sectional shape with a mold. However, in this embodiment, the latter is adopted. and end 7
1 and 71 are sufficiently thick in the axial direction of the cylinder to ensure strength at the ends, and protruding pieces 72 are provided at the ends 71 and 71.
A groove 73 into which the protruding piece 72 is fitted is formed in the mating surface corresponding to the ends 71, 71, so that even if a slight force is applied to the ends 71, 71 when pulling up the filter 30, the cross section will not change. This small end 71,7
1 is constructed so as not to be damaged, and the corner portions are rounded so that the protruding piece 72 and the groove 73 are disengaged when a force exceeding a predetermined level is applied. Since this locking is performed on the outer peripheral side of the filter 30, there is less adhesion of debris and cleaning is easy.

Further, the spiral body 30A has an outer diameter slightly smaller than the inner diameter of the cylindrical portion 29b (the tips of the protrusions 57...), and the outer circumferential surface 74 is in contact with the protrusions 57... and the inner circumferential surface 7
5 is approximately cylindrical, as shown in Figure 9, from the midpoint 0 upwards,
Flat tapered surfaces 75a, 75a are formed so that the diameter increases symmetrically toward the bottom. That is, in the vertical cross-sectional shape of the helical body 30A, the cut line of the inner surface of the adjacent step is located on the extension of the cut line of the inner surface of each step. Tapered surface 75 above
With the formation of a, the rotation of the separation cylinder 29 allows the scum to be accumulated from below first, and also facilitates the removal of the scum from the filter in the downward direction. In addition, in the embodiment, in order to eliminate the vertical directionality of the filter 30,
Although the diameter is larger toward the bottom, if it has directionality, it may be formed into a tapered surface that becomes larger in diameter from the top toward the bottom.

The cross-sectional shape of each step of the spiral body 30A is such that the upper and lower corners of the outer surface are cut out 76a, as shown in FIG.
76a, thereby reducing the flow resistance of the liquid flowing out from the gap 69. Note that the form of this notch is not limited to that shown in the drawings.

Further, referring to FIG. 4, the spiral body 30A is formed with a liquid flow gap 69 between each stage, and flat surfaces 77a and 77b are formed on the surfaces forming the gap, and the lower surface of the lid 61 and the low step part 52 of the cylindrical part 29b are formed. Liquid flow gap 7 between the top surface and
9,80 is formed. This gap is a constant value (for example, 0.4 mm) between each stage when the lid is closed as shown in the figure.
In order to prevent the helical gap 69 from becoming narrower, spacing-maintaining protrusions 81 are provided on the lower surface of the helical body 30A at equal intervals in the longitudinal direction of the gap 69, all having the same height over substantially the entire width in the radial direction of the flat surface 77b. The spiral body 30A is formed in the gaps 79 and 80.
Similar spacing-maintaining protrusions 82 having the same height as the protrusions 81 are formed on the upper and lower end surfaces of the holder. These protrusions 81..., 82... make the ease of liquid outflow approximately equal over the entire vertical direction of the filter.
Note that the latter projections 82 may be provided on the lid 61 and the cylindrical portion 29b side instead of being provided on the spiral body 30A, and the former projections 81 may be provided on the upper surface side of the spiral body 30A. Further, the protrusions 81..., 82... may be knurled protrusions.

Further, the spiral body 30A has a cylindrical portion 29b and a lid 6.
Rotation is prevented by concave-convex engagement between the base plate and the base plate 1. That is, a large number of substantially V-shaped engagement grooves 83 having the same shape at the top and bottom are formed at the outer corners of the top and bottom stages of the spiral body 30A over a range of a predetermined angle (approximately 60 degrees in this embodiment). A pair of substantially V-shaped protrusions 84 are formed in the upper grooves 83 at a predetermined angle (approximately 60 degrees in this embodiment) at the inner corner of the lid 61. By fitting, rotation is prevented between the cover 61 and the separation tube 29 by fitting the protrusions 59 of the cylindrical portion 29b into the grooves 83 at the lower end. .

Further, the spiral body 30A is set so that the winding direction is the direction in which the diameter increases, that is, for example, the separation tube 29
The winding direction is formed so that when the direction of rotation is counterclockwise x when viewed from above, the winding direction from top to bottom is clockwise when viewed from above. If the winding is reversed to this winding direction, as the separating cylinder 29 rotates, the diameter of the helical body 30A will contract, and at the same time, a force will act in a direction in which the length in the axial direction of the cylinder will increase, and this force will act as a force to remove the lid 61. In some cases, there is a risk that the engaging portion between the lid 61 and the separation tube 29 may be damaged and the lid 61 may be blown off.However, if the winding direction of this embodiment is used, the spiral body 30A may be damaged as the separation tube 29 rotates. Since the force acts in the direction of expanding the diameter of the cylinder and contracting the length in the axial direction of the cylinder, such a drawback is eliminated and the locking structure of the lid 61 can be simplified.

Further, the lid 61 is fitted and locked into the large diameter portion 60 at the upper end of the cylindrical portion 29b as shown in FIGS. 4 and 10 to 12 to prevent the filter 30 from coming off.
It is configured to have a function of preventing debris accumulated on the inner circumference from flying out. 61a is a cylindrical vertical portion in contact with the large-diameter portion 60, and projections 85 are provided at equal intervals on the outer peripheral surface, and the large-diameter portion 60 is arranged between the projections 85, 85.
The vertical groove 86a through which the protrusion 62 passes and this groove 86a
A large number of grooves 86 are formed at equal intervals, and the inner circumferential surface 87 is tapered to expand downward, and a groove 86 is formed on the outer periphery of the upper end of the spiral body 30A. Abutting longitudinal protrusions 88 are formed, and a liquid flow gap 89 is formed between the spiral body 30A and the large diameter portion 6.
There is also a liquid flow gap 9 between the inner surface and the vertical portion 61a.
0.91 is formed. 61b is the spiral body 30
The horizontal part is formed with an opening 93 having a diameter smaller than the inner diameter of A and has a downward protrusion 92 on the periphery, and the lower surface presses the upper end surface of the filter 30, and the periphery of the opening 93 acts to prevent debris from flying out.

Further, referring to FIG. 2, the container lid 21b has a material input tube 44 integrally vertically disposed opposite a portion off the center of the cutter 38, and a material input tube 44 is integrally provided on the periphery thereof so as to cover substantially the entire surface of the cutter 38. A regulating plate 41 is integrally provided to protrude in the horizontal direction. The outer edge of the regulating plate 41 is bent downward to form a hanging portion 41a located outside the re-cutting blades 40 and facing the extending portions 42. This hanging portion 41a is formed with one or more slits for concentrating the material and protruding from it, and is also integrally formed with projections 94 for pressing the material cut on the outer peripheral surface. 95 is a push rod inserted into the material input cylinder 41 to push the material;
6 is a protrusion formed obliquely in the direction to discharge the excess waste to the outside of the separation cylinder when excessive waste is accumulated.

Further, the container lid 21b is secured to the container 21 by a clamp device 97 attached to the main body case 2 as shown in FIG.
A is pressed onto the main body case 2 with the lid closed and fixed.

() About the liquid take-out part C Reference numeral 119 is a cup for receiving the liquid from the outflow port 25, which has a substantially triangular cross section and is placed on the low step part 9 formed in the front corner of the main body case 2 to have a substantially triangular shape in plan. A handle 120 is provided at the corner to facilitate removal from the front side of the main body.

Next, the operation of the above embodiment will be explained. Before liquid generation, the filter 30 is in an extended state as shown in FIG.
After engaging the protrusions 72, 72 at the starting end with the grooves 73, 73, it is installed in the cylindrical part 29b. Then, while compressing the filter 30, the lid 61 is attached to the cylindrical portion 29b.
The protrusions 62 are fitted into the large diameter portion 60 of the vertical groove 8.
6a... into the horizontal grooves 86b and rotate the lid 61 clockwise (opposite to the rotational direction of the separation tube 29) when viewed from above to position the protrusions 62 deep inside the horizontal grooves 86b. join to. In this state, the filter 30 is contracted as shown in FIG. 4 to prevent it from popping out. And the protrusion 82 at the upper end...
A gap 79 is created between the inner surface of the lid 61 and the upper end surface 70 of the filter 30 by the projections 81 .
However, the gap 80 is maintained at a constant interval by the projections 82 at the lower end. At the same time, the protrusion 59... and the groove 8 on the lower end
3..., the lower end of the filter 30 moves to the cylindrical portion 29.
b, and the upper end of the filter 30 is locked to the lid 61 by engagement between the protrusions 84 and the grooves 83 on the upper end, and the filter 30 is prevented from rotating vertically.

Next, the container lid 21b is closed on the receiver 21a, and the clamp device 97 is rotated to engage the lid 21b, thereby completing the liquid production preparation state. Then, by driving the electric motor, materials such as fruits and vegetables are introduced into the input tube 44 and pushed by the push rod 95. Then, the material is grated by the grater blade 39, but large materials such as leather that could not be grated and cut are re-cut by the re-cutting blade 40...
The particles are cut into small pieces and blown outward in the horizontal direction through the gap between the regulating plate 41 and the base portion 29a or the notch in the hanging portion 41a, and are attached to the inner periphery of the filter 30. This adhered material to be cut descends along the lower tapered surface 75a of the filter 30, and is divided into scraps and
The liquid component is separated into the gaps 80 and 69.
reaches the inner periphery of the cylindrical portion 29b, and the protrusions 57...
After moving upward through the flow gap 58 formed by
Available at 1a. This liquid flows down from the outlet 25 and is received by the cup 119.

On the other hand, waste portions are accumulated sequentially from the inner lower end H of the filter 30 while being held down by the holding projection 41a, resulting in an accumulation state as shown in FIG. 13. When the material is further cut, the material to be cut is cut on the upper tapered surface 7.
5a and is accumulated in the inner upper half of the filter 30, and the liquid separated from the material to be cut in the lower part of the horizontal part 61b of the lid 61 flows into the gap 79-89-90.
- Separation tube 29 through 91 and 69-90-91
leak outside. The outflow of this liquid is made smooth because the inner circumferential surface 87 of the lid 61 is tapered. When the material is further accumulated inside the diameter of the opening 93 of the lid 61 to be cut, the scraps are discharged to the outside of the separation tube 29 by the protrusions 96.

To remove the waste after generating such waste, first stop the electric motor, remove the clamping device,
Remove the container lid 21b. When the lid 61 is rotated to disengage from the cylindrical portion 29b, the filter 30 expands due to its own elasticity as shown in FIG. 13, and its upper end protrudes above the upper end of the cylindrical portion 9b. The filter 30 can be easily taken out of the separation tube 29 by holding this protrusion and pulling it upward. This filter 30 has debris K attached to the lower part of its inner periphery, and by holding both ends of the filter 30 and expanding and contracting it, as well as shifting it laterally as shown in Fig. 14,
The mass of waste K easily separates from the inner periphery of the filter. In addition, fibers and the like remaining in the gap 69 can be easily washed away by washing with water in this expanded state because the gap 69 expands due to its own elasticity.

(F) Effects of the Invention According to the present invention configured as described above, in the cross-sectional shape of the filter, the cutting line on the inner surface of the adjacent stage exists on the extension of the cutting line on the inner surface of each stage, so that there is no waste. The liquid flow gap is less likely to be jammed, and vertical movement is performed smoothly. As a result, the adhesion of scum is made uniform over the top and bottom, the efficiency of squeezing the juice is maintained at a good level, and the work of removing scum is facilitated.

[Brief explanation of drawings]

1 to 14 all show one embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a front cross-sectional view of a main part notch, and FIG. 3 is a main part with the lid 61 removed. A plan view, FIG. 4 is a vertical sectional view of the main part, FIG. 5 is an exploded front view of the main part, FIG. 6 is a front view of the parts, and FIG.
Figure 8 is a side view showing the same part in different states;
The figure is a cross-sectional view of the part showing the compressed state, Figure 10 is a back view of the part, Figure 11 is a cross-sectional view taken along line A-O-Y in Figure 10, Figure 12 is an enlarged front view of the main part of Figure 11,
3 and 14 are longitudinal sectional views of main parts showing different operating states. 21... Container, 29... Centrifuge tube, 30...
Filter, 30A...Spiral, 38...Katsuta,
69...Liquid flow gap, 75...Inner peripheral surface.

Claims (1)

[Claims] 1. A centrifugal separation tube that has a cutter for cutting material on the inner bottom and is rotated by a motor, and a tube that is detachably attached to the inner circumference of this separation tube and separates the cut material into waste and liquid. In the extractor, the cylindrical filter is provided with a container for receiving the liquid flowing out from the centrifugal tube, and the scum is collected in the centrifugal tube, and the cylindrical filter is arranged in a spiral liquid flow gap that allows the interval to be expanded. What is claimed is: 1. A lever comprising a helical body having a vertical cross-sectional shape of the helical body, and in which a cutting line on the inner surface of an adjacent stage is located on an extension of a cutting line on the inner face of each stage in the vertical cross-sectional shape of the spiral body.