JPH0463684B2 - - 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 used, for example, in Japanese Patent Application Laid-Open No. 58-7217.
(A47J19/00). In this extractor, rotational vibrations are likely to occur due to unbalance of waste that occurs during juice extraction. Therefore, in order to prevent this, a sealed hollow part is formed in the upper part of the circumferential side of the centrifugal separation tube, and after sealing an appropriate amount of liquid in this hollow part, the lid is closed and sealed liquid-tight by heat welding, so that the so-called fluid It constitutes a balancer and performs balance correction.

However, if the distance between the heat welding part and the liquid surface is short, the liquid will evaporate during heat welding. In this case, there was a problem that the amount of sealed liquid changed and the desired balance correction effect could not be obtained.

(c) Object of the Invention The object of the invention is to prevent evaporation of balancer liquid due to thermal welding during formation of a fluid balancer.

(d) Structure of the Invention The present invention consists of a centrifugal separation tube that has a cutter on the inner bottom for cutting material and is rotationally driven by a motor; In the extractor, which is equipped with a cylindrical filter that separates liquid and liquid components, and a container for receiving the liquid flowing out from the centrifugal tube, and which collects waste in the centrifugal tube, the entire side surface of the centrifugal tube is , an annular hollow part with an opening at one end for sealing liquid is formed, and an annular lid is provided which is joined to the opening and seals the annular hollow part airtightly by heat welding, and a centrifugal cap is provided on the other end side of the annular hollow part. It is characterized by being provided with a liquid reservoir having a structure that suppresses the inflow of liquid when the separation cylinder rotates.

(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 Figure 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. in,
A drive shaft 6 of an 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 (for example, 4000 rpm) on its outer periphery in a biaxial manner concentric with the high-speed drive connector 10. It is rotatably supported by the drive shaft 6 through a bearing 12, and includes pulleys 13, 14, and a belt 15. , 16 etc. deceleration mechanism 17
The rotation of the drive shaft 6 is transmitted while being decelerated.

This connector 11 has a large diameter part 11a formed in its upper part, engagement grooves 18 formed in its outer periphery, and a drainage plate 19 attached to its 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.
Valve body 28 that is opened and closed by knob 27 of 1a
It is equipped with

Referring to FIG. 3, 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. This is 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 easily separate the debris accumulated in the low step part 52, and the center part has a cylindrical shape into which the support part 32 of the platform part 29a is fitted. A shaped fitting part 47 is formed, and the outer periphery of the upper end 32a of the support part 32 is connected to the fitting part 4.
The horizontal portion 31
The lower surface 31a of the outer periphery is brought into surface contact with the upper surface 46a of the high step portion 46. 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. 4
8 is an engagement groove formed on the upper inner periphery of the fitting portion 47, into which the protrusion 37 of the base portion 29a is fitted and the base portion 2 is inserted.
It acts to prevent rotation between the cylindrical portion 9a and the cylindrical portion 29b. 49
... are locking claws discretely formed on the inner periphery of the lower end of the fitting part 47, and the fitting part 47 of the support part 32 of the base part 29a
When it is fitted into the holder, 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.

Referring to FIG. 3, the ring body 29c is
Protrusions 51 having slopes that bayonetly engage with the protrusions 36 of 9a are formed on the inner periphery, and the fitting portion 4
7. A receiving surface 53 for receiving the lower end is formed at 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.

Reference numeral 63 denotes a substantially L-shaped sealed hollow portion extending from the bottom to the side surface of the cylindrical portion 29b, and an appropriate amount of liquid 68 is sealed inside to constitute the liquid balancer BL. Specifically, the inner wall 64, the outer wall 65 in which the inner circumferential surface 65a is expanded downward, and the constituent walls of the low step portion 52 form a hollow portion having a lower opening and a substantially L-shaped cross section. As shown in the figure, after the cylindrical portion 29b is turned upside down and the liquid 68 is sealed, the ring-shaped bottom lid 66 is connected to the lower end of the outer wall 65 and the inner end of the lower surface of the bottom step portion 52, and then the metal ring P1,
The rings P1 and P2 are fitted with convexes and convexes with P2 interposed therebetween, and the rings P1 and P2 are heated to about 150° C. by high frequency and sealed watertightly by thermal welding.

67... is a plurality of vertical resistance plates integrally provided with the outer wall 65 side, and 63a is a sealed hollow part 6.
This is a dam for suppressing the rise of the liquid 68, which is formed by making the outer wall 65 have a thickness 63b at the upper end portion of the inner side of the liquid 68. 63c is a liquid reservoir formed between the thick part 63b and the inner wall 64 above the dam part 63a;
Not necessary for balance correction. In other words, this part may be filled with resin, but when the liquid is filled as described above (see Fig. 4), the liquid 68 also flows into this liquid reservoir 63c, and as a result, the liquid level Y is changed from the thermally welded part (the uneven fitting part). This makes it possible to prevent the liquid 68 from evaporating during thermal welding.

As shown in FIGS. 5 and 6, 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 is minimized. 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 a tapered surface 75 whose diameter increases symmetrically upward and downward from the midpoint (0) as shown in FIG.
a, 75a, the rotation of the separating cylinder 29 allows the scum to be accumulated from below, and also facilitates the removal of the scum from the filter in the downward direction. In the embodiment, the filter 30 is formed to have a larger diameter toward the top and bottom in order to eliminate the vertical directionality, but if it has directionality, it would have a taper that increases in diameter from the top to the bottom. It may be formed on a surface.

The cross-sectional shape of each stage 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, and making the inner surface 76b a flat surface to facilitate the movement of waste. still,
The form of this notch is not limited to that illustrated. Furthermore, if it is not necessary to improve the mobility of debris, the inner surface may be curved.

Further, referring to FIG. 6, the spiral body 30A forms a liquid flow gap 69 between each step, and also forms flat surfaces 77a and 77b on the surfaces forming the gap, and the lower surface of the lid 61 and the low step portion 52 of the cylindrical portion 29b. Liquid flow gap 7 between the top surface and
9,80 is formed. When the gap 61 is closed, the flat surface 7 of the lower surface of the spiral body 30A, which is the gap forming surface, is used in the spiral gap 69 so that the gap between each stage does not become narrower than a certain value (for example, 0.4 mm).
7b, spacing protrusions 81 of the same height are formed at equal intervals in the longitudinal direction of the gap 69 over substantially the entire width in the radial direction. Protrusion 81 on the lower end surface
A protrusion 82 for maintaining the distance is formed at the same height as.... These protrusions 81..., 82... make the ease of liquid outflow approximately equal over the entire vertical direction of the filter. Incidentally, the latter protrusion 82... is the spiral body 30.
Instead of being provided on A, the protrusions 81 may be provided on the lid 61 and the cylindrical portion 29b, and the former protrusions 81 may be provided on the upper surface 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 convex-concave engagement between the base 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 lid 61 and the groove 8 at the lower end.
The protrusions 59 of the cylindrical portion 29b fit into the cylindrical portions 3 and 3, thereby preventing rotation between the cylindrical portion 29 and the separation tube 29.

Further, as shown in FIGS. 3, 7, and 8, the lid 61 is fitted and locked into the large-diameter upper end portion 60 of the cylindrical portion 29b to prevent the filter 30 from coming off and to prevent the filter from being accumulated on the inner periphery of the filter. It is configured to have a function of preventing debris from flying out. Reference numeral 61a denotes a cylindrical vertical portion in contact with the large diameter portion 60, and projections 85 are provided at equal intervals on the outer circumferential surface, and a vertical groove 86a through which the projection 62 of the large diameter portion 60 passes between the projections 85 and 85, and this groove. 86a and a horizontal groove 86b with which the protrusion engages, a large number of grooves 86 are formed at equal intervals, and the inner circumferential surface 87 is formed in a tapered shape that expands downward.
In addition, vertical protrusions 88 are formed that contact the outer periphery of the upper end of the spiral body 30A, and a liquid flow gap 89 is formed between the spiral body 30A and the spiral body 30A. Further, liquid flow gaps 90 and 91 are also formed between the inner surface of the large diameter portion 60 and the vertical portion 61a. 61b is an opening 9 having a diameter smaller than the inner diameter of the spiral body 30A and having a downward protrusion 92 on the periphery.
3, the lower surface of the horizontal part forms the filter 30.
It presses the upper end surface of the opening 93 and prevents debris from flying out at the peripheral edge of the opening 93.

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 outlet (C) Reference numeral 119 is a cup for receiving the liquid from the outlet 25, which has an approximately triangular cross section and is located on the lower part 9 formed in the front corner of the main body case 2, which is approximately triangular 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 projecting pieces 72, 72 at the starting end are inserted into the grooves 73, 7.
The filter 30 shown in FIG. Then, while compressing the filter 30, the lid 61 is fitted into the large-diameter portion 60 of the cylindrical portion 29b, and the protrusions 62 are inserted into the horizontal grooves 86b from the vertical grooves 96a in a clockwise direction (separation cylinder 29) to position the protrusions 62 deep inside the lateral grooves 86b, thereby coupling them to the cylindrical portion 29b. In this state, filter 30
is reduced as shown in FIG. 4 to prevent it from popping out. Then, the lid 61 is closed by the projections 82 on the upper end.
A gap 79 between the inner surface and the upper end surface 70 of the filter 30
However, the gap 69 is maintained at a constant interval by the protrusions 81, and the gap 80 is maintained at a constant interval by the protrusions 82 at the lower end. At the same time, the lower end of the filter 30 is locked to the cylindrical part 29b by the engagement between the projections 59 and the grooves 83 at the lower end, and the upper end of the filter 30 is locked by the engagement between the projections 84 and the grooves 83 at the upper end. 61, 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 juice production preparation state. and,
Driving an electric motor, feeding materials such as fruits and vegetables into cylinder 4
4 and push it in with the push rod 95. Then, the material is grated by the grater blade 39, but large materials such as skins that could not be grated and cut are cut into small pieces by the re-cutting blade 40.
The particles are blown outward in the horizontal direction from the gap between the filter 30 and the notch of the hanging portion 41a, and adhere to the inner periphery of the filter 30. This adhered cut material descends along the tapered surface 75a of the filter 30 and is separated into scraps and liquid, and the liquid flows through the gaps 80 and 69 and reaches the inner periphery of the cylindrical portion 29b. and protrusion 5
After moving upward through the flow gap 58 formed by 7..., it flows out of the separating cylinder 29 through the flow gaps 90, 91 between the lid 61 and the cylinder part 29b, and is received in the container 21a. . This liquid is transferred to the outlet 25
The water flows down from the water 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 also accumulated in the upper inner 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 is collected in the gap 79-8.
It flows out of the separation cylinder 29 through 9-90-91 and 69-90-91. This liquid leaks out from the lid 61.
This can be done smoothly by tapering the inner peripheral surface 87 of the . Further material is cut to form the opening 9 of the lid 61.
If it accumulates inside the 3rd diameter, the protrusion 9
6..., the waste is discharged to the outside of the separation cylinder 29.

In this youth generation action, the fluid balancer BL described above functions as follows. Centrifuge tube 2
9, the liquid 68 is collected at the inner bottom of the hollow part 63, and the distance of the center of gravity of the liquid 68 from the center of rotation of the separation cylinder 29 is shortened. Therefore, if the product is installed with a slight inclination, the distribution of the liquid 68 will be uneven, but since the distance of the liquid 68 from the center of rotation is short, the rotational moment is small, and vibrations due to rotation are reduced. This effect is the same when the separation tube 29 stops rotating.

Also, during steady rotation of the separation cylinder 29 during the production of youth,
If an imbalance occurs in the distribution of debris adhering to the inner periphery of the filter 30, the balance is corrected by the liquid balancer BL. The liquid 68 adheres to the inner peripheral surface 65a of the outer wall 65 due to centrifugal force as shown in FIG. 10, but the rise of the liquid 68 is suppressed by the presence of the dam 63a and the slope of the inner peripheral surface 65a. and obtain the following effect. That is, if the vertical length of the hollow portion 63, that is, the length of the surface on which the liquid 68 rises is long, it causes vibration, but by suppressing the rise of the liquid 68, this vibration can be reduced.

Note that the present invention is not limited to the above-mentioned embodiment, and as shown in FIG. The liquid reservoir portion 631c may be configured to suppress the inflow of liquid. Weir part 63a
may be formed by an annular protrusion instead of the stepped portion. Further, the filter 30 may be a comb-like filter having a large number of vertical slits instead of a spiral filter. Further, the hollow portion for the balancer does not have to have a substantially L-shaped cross section, and may be formed at least on the side surface of the separation cylinder 29.

(F) Effects of the Invention According to the present invention configured as described above, when the bottom cover is welded, the liquid also flows into the liquid reservoir, thereby increasing the distance between the liquid surface and the welding part, and reducing the amount of liquid caused by heat. As a result, the desired balance correction effect can be obtained.

[Brief explanation of drawings]

Figures 1 to 10 all show an embodiment of the present invention, with Figure 1 being a front view, Figure 2 being a front cross-sectional view of a main part notched, Figure 3 being a longitudinal cross-sectional view of a main part, and Figure 4 being a front view of the main part. 5 is a front view of the part, FIG. 6 is a sectional view of the part showing a compressed state, FIG. 7 is a back view of the part, and FIG. 8 is a part A- 9 is an enlarged front view of the main part of FIG. 8, FIG. 10 is a longitudinal sectional view of the main part showing the operating state, and FIG. 11 is a cutaway cross-section of the main part of another embodiment of the present invention. It is a diagram. 21... Container, 29... Centrifugal separation cylinder, 30... Filter, 38... Cutter, 63, 631... Hollow part, 63
c, 631c...liquid reservoir, BL...fluid balancer.

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, which comprises a filter having a shape of 1.5 mm, and a container for receiving the liquid flowing out from the centrifugal tube, the waste is collected in the centrifugal tube. A hollow portion is formed, and an annular lid is provided which is joined to the opening and seals the annular hollow portion airtightly by heat welding, and the other end of the annular hollow portion is provided to prevent liquid from flowing in when the centrifugal separation tube rotates. A juicer with a liquid reservoir with a compact structure.