JP5859968B2 - Disposer - Google Patents

Description

  The present invention relates to a disposer, in particular, a disposer including a ring-shaped fixed blade and a rotating plate disposed concentrically with the fixed blade.

  The disposer is a device that crushes straw and mixes it with water to produce a slurry.

  In general, the disposer includes a ring-shaped fixed blade, and a rotating plate disposed concentrically with the fixed blade inside the fixed blade. Such a disposer crushes a wrinkle by pressing the wrinkle against a fixed blade with a centrifugal force generated by rotation of a rotating plate (for example, Patent Document 1). In this specification, the disposer disclosed in Patent Document 1 may be referred to as a “prior art product”.

  The fixed blade is configured by alternately arranging a large number of grooves and teeth on the inner surface of a metal ring. Here, the groove portion refers to a concave portion formed on the inner surface of the ring, and the tooth portion refers to a convex portion formed on the inner surface of the ring. Moreover, the bottom part of a groove part means the lowest part (= part far from the center of a ring) of a groove part. The top of the tooth portion refers to the highest portion of the tooth portion (= portion close to the center of the ring).

  The groove and teeth of the prior art product are substantially rectangular in the cross section (horizontal cross section) obtained by cutting the fixed blade along a plane perpendicular to the rotation center axis of the ring, and the width of the top of the tooth and the width of the bottom of the groove are Are substantially equal (FIG. 8 of Patent Document 1).

Now, if the size of the particles obtained by crushing the soot with the disposer, that is, if the size of the soot particles contained in the slurry is large, there is a risk of clogging in the drain pipe. Limited to: Further, the size of the soot particles is determined by the size of the cross-sectional shape of the groove. Therefore, the cross-sectional shape of the groove portion of the fixed blade is limited to a predetermined size or less. On the other hand, if the cross-sectional shape of the groove part is made smaller than necessary, the wrinkles may be clogged in the groove. According to the experience of the present inventor, it has been found that good results can be obtained when the cross-sectional area of the groove is about 9 mm ² (width 4 mm, depth 2.3 mm).

JP 2009-22913 A

  Needless to say, the disposer is required to improve the processing speed (the amount of soot crushed per unit time) and to reduce the size.

  Needless to say, if the rotational speed (rotational speed) of the rotating plate is increased, the processing speed is naturally improved. However, when the rotation speed is increased, there is a problem that noise and vibration increase. In general, an inexpensive and easily available induction motor is used for the disposer, but a high-rotation induction motor is expensive and not easily available. Although the rotation speed of a DC motor is relatively easy to change, there is a problem that it is not easy to use because it needs to be replaced due to brush wear.

  Also, if the cross-sectional area of the groove is increased, the processing speed can be improved without changing the rotational speed of the rotating plate. However, as described above, if the cross-sectional area of the groove portion is increased, soot particles increase and the drainage pipe may be clogged.

  If the number of grooves is increased, the processing speed can be improved without changing the rotation speed of the rotating plate and without increasing the size of the soot particles. However, if the number of grooves is increased, the diameter of the fixed blade increases, which contradicts the request for downsizing the disposer.

  The present invention has been made under the background as described above, and an object thereof is to provide a disposer capable of improving the processing speed without changing the rotation speed of the rotating plate, the diameter of the fixed blade, and the size of the soot particles. And

In order to achieve the above object, the disposer of the present invention has a rotating plate that is rotationally driven, and grooves and teeth are alternately formed on the inner surface of the ring that is arranged concentrically with the rotating plate and surrounds the rotating plate . in disposer comprising solid Teiha, the width of the teeth in a cross section of the fixed blade cut along a plane perpendicular to the axis of rotation of the rotary plate is minor than the width of the groove, the teeth of the fixed blade There are three types: a high tooth portion having the highest height in the rotation axis direction of the rotating plate, a lowest low tooth portion, and a middle tooth portion having an intermediate height between the high tooth portion and the low tooth portion. The middle tooth portion and the low tooth portion are each provided with an inclined surface that becomes lower at the upper end as it approaches the rotation axis of the rotating plate .

  In addition to the above-described configuration, the shape of the tooth portion in a cross section obtained by cutting the fixed blade along a plane perpendicular to the rotation axis of the rotating plate may be configured such that the tip portion is thinner than the base portion.

The high tooth portion may be disposed at a distance from the ring to divide the inner surface of the ring into a plurality of sections, and the low tooth section and the middle tooth section may be disposed in each section.

There are two types of sections: a low-tooth section in which only the low-tooth portion is arranged, and a middle-low tooth section in which the middle-tooth portion is arranged in the center and the low-tooth portion is arranged before and after that. The low tooth section and the middle low tooth section may be alternately arranged on the inner surface of the ring .

Alternatively, the tooth portion of the fixed blade has two types, a high tooth portion having a high height in the rotation axis direction of the rotating plate and a low tooth portion having a low height, and the high tooth portion is formed on the ring . Arranged at intervals, the inner surface of the ring may be divided into a plurality of sections, and the low teeth may be disposed in each section.

  Further, two low tooth portions may be arranged in each of the sections.

  Alternatively, when N and M are natural numbers that are relatively prime to each other, N swing hammers are arranged at equal intervals on the rotating plate, and M tooth portions are equal to the fixed blade. It may be arranged at intervals.

  Alternatively, two swing hammers may be arranged at equal intervals on the rotating plate, and an odd number of the tooth portions may be arranged at equal intervals on the fixed blade.

Moreover, the said high-tooth part may be comprised so that it may be arrange | positioned by a pair 2 each at the said ring , and the said pair may divide | segment the inner surface of the said ring into several divisions.

  In addition, in the cross section obtained by cutting the fixed blade along a plane perpendicular to the rotation axis of the rotating plate, the center line of the cross-sectional shape of the groove portion may be inclined in a direction to reach the rotating plate.

  The tooth portion may have an inclination angle with respect to the rotation axis of the rotating plate, and the inclination angle may be inclined in a direction of pushing down a heel pressed against the fixed blade by the rotating plate.

  An inclined surface may be formed at the upper end of the tooth portion, and the inclined surface may be lowered in a direction toward the center of the fixed blade.

  According to the present invention, since the width of the tooth portion of the fixed blade is smaller than the width of the groove portion, a larger number of groove portions can be arranged on the fixed blade of the same size. Therefore, the processing speed of the disposer can be increased. Further, when the width of the tooth portion of the fixed blade is reduced, the frictional resistance that the rotating plate receives from the fixed blade can be reduced. Therefore, the power consumption of the disposer can be reduced.

  In addition, if the shape of the tooth portion in the cross section obtained by cutting the fixed blade with a plane perpendicular to the rotation axis of the rotating plate is such that the tip portion is thinner than the base portion, the groove portion is secured while ensuring the mechanical strength of the tooth portion. The number of can be maximized.

  In addition, if the fixed blade is formed with three types of tooth parts with different heights, that is, a high tooth part, a middle tooth part and a low tooth part, after cutting the wrinkles roughly with the high tooth part, further cutting with the middle tooth part And finally, since it can be finely crushed at the low tooth part, the cocoon can be crushed efficiently. That is, the processing speed of the disposer is improved.

  Further, when N and M are natural numbers that are relatively prime to each other, N swing hammers are arranged at equal intervals on the rotating plate, and M tooth portions are arranged at equal intervals on the fixed blade (for example, If two swing hammers are arranged at regular intervals on the rotating plate and odd number of teeth are arranged at regular intervals on the fixed blade), all the swing hammers can be in contact with the teeth simultaneously. Therefore, the load on the rotating plate (the motor that drives it) can be reduced.

  In addition, in the cross section obtained by cutting the fixed blade along a plane perpendicular to the rotation axis of the rotating plate, if the center line of the cross-sectional shape of the groove portion is inclined in the direction to face the rotating plate, the wrinkles are smoothly introduced into the groove portion. Therefore, the cocoon can be crushed more efficiently. That is, the processing speed of the disposer is further improved.

  In addition, if the tooth portion is inclined with respect to the rotation axis of the rotating plate and tilted in a direction to push down the wrinkles pressed against the fixed blade by the rotating plate, the crushed wrinkles are discharged smoothly. Is done. Further, when the inclination angle is given to the tooth portion, the length of the tooth portion can be increased, so that the processing speed of the disposer is improved.

  Further, if an inclined surface that is lowered in the direction toward the center of the fixed blade is formed at the upper end of the tooth portion, the heel that rides on the upper end of the tooth portion slides and falls on the inclined surface. Can be crushed. In other words, the processing speed of the disposer is further improved.

It is a notional sectional view of a disposer. It is a top view of a fixed blade. It is a perspective view of a fixed blade. It is the expanded view which looked at the fixed blade from the inner side (A direction of FIG. 2). It is the horizontal sectional view which cut | disconnected the fixed blade by CC 'line | wire of FIG. It is a horizontal sectional view showing a modification of a fixed blade. It is a vertical sectional view of a fixed blade, (a) is a sectional view of a middle tooth part, (b) is a sectional view of a low tooth part. It is an expanded view which shows the modification of a fixed blade. It is an expanded view which shows the modification of a fixed blade. It is a perspective view which shows the modification of a fixed blade. It is a top view which shows the modification of a rotating plate and a fixed blade. It is a perspective view which shows the modification of a fixed blade. It is a horizontal sectional view showing a modification of a fixed blade.

  Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a conceptual cross-sectional view of a disposer 1 showing an example of an embodiment of the present invention. The disposer 1 is a device that is installed below the sink 2 and crushes a spear (not shown) dropped from the sink 2, and includes an upper casing 3, a lower casing 4 attached below the upper casing 3, A motor housing 5 is provided below the lower casing 4.

  A fixed blade 6 is fixed to the lower casing 4, and a rotating plate 7 is disposed inside the fixed blade 6. The rotating plate 7 is driven by an electric motor (not shown) built in the motor housing 5 and rotates around the rotating shaft 8. A swing hammer 9 is attached to the upper surface of the rotating plate 7, and the swing hammer 9 rotates about the swing shaft 10. The space above the rotating plate 7 inside the lower casing 4 is called a crushing chamber 11, and the space below the rotating plate 7 is called a discharge chamber 12.

  The soot dropped from the sink 2 enters the crushing chamber 11 through the upper casing 3. The soot that has entered the crushing chamber 11 is blown in the radial direction of the rotating plate 7 by the centrifugal force generated by the rotation of the rotating plate 7, struck by the swing hammer 9, and pressed against the fixed blade 6. The soot pressed against the fixed blade 6 is crushed, falls into the discharge chamber 12, and is discharged from the discharge pipe 13.

  Now, the form of the fixed blade 6 constituting the disposer 1 will be described in detail with reference to FIGS. 2 is a plan view of the fixed blade 6 (viewed from the direction A in FIG. 1), and FIG. 3 is a perspective view of the fixed blade 6. As shown in FIG. FIG. 4 is a developed view of the fixed blade 6 as viewed from the inside (direction B in FIG. 2). FIG. 5 is a horizontal sectional view of the fixed blade 6 taken along the line CC ′ of FIG. FIG. 6 is a vertical sectional view of the fixed blade 6.

  As apparent from FIGS. 2 and 3, the fixed blade 6 is formed in a ring shape as a whole. A large number of grooves 21 and teeth 22 are alternately arranged on the inner surface of the ring. Here, the groove 21 is a recess formed on the inner surface of the fixed blade 6. The tooth part 22 refers to a convex part formed on the inner surface of the fixed blade 6. As shown in FIG. 2, the rotating plate 7 rotates counterclockwise (in the direction indicated by the arrow R) when viewed from above the disposer 1.

  As is clear from FIGS. 3 and 4, the fixed blade 6 includes three types of tooth portions 22 having different heights. That is, the fixed blade 6 includes a high tooth portion 22 h having a height equal to the height of the fixed blade 6, a low tooth portion 22 l having a height that is about 1/2 of the height of the fixed blade 6, and a high tooth portion. A middle tooth portion 22m having an intermediate height between 22h and the low tooth portion 22l is formed.

  The high teeth 22h are arranged on the circumference at a 45 ° pitch in the plan view (FIG. 2). That is, the fixed blade 6 has eight high tooth portions 22h and is arranged at equal intervals in the circumferential direction. In other words, the ring of the fixed blade 6 is divided into eight sections by the high tooth portion 22h. The eight sections include an X section in which the low tooth portion 22l and the middle tooth portion 22m are mixed and a Y section in which only the low tooth portion 22l is disposed. The X section and the Y section Are arranged alternately (see FIG. 4). More specifically, one middle tooth portion 22m is disposed at the center of the X section, and four low tooth portions 22l are disposed on both sides, that is, between the middle tooth portion 22m and the high tooth portion 22h. ing. Nine low tooth portions 22l are arranged in the Y section.

  As described above, the fixed blade 6 includes the three types of tooth portions 22 having different heights, that is, the high tooth portion 22h, the middle tooth portion 22m, and the low tooth portion 22m. After being roughly cut by the portion 22h, further cut by the middle tooth portion 22m, finally finely crushed by the low tooth portion 22l, and dropped into the discharge chamber 12. Therefore, the cocoon can be efficiently crushed.

  Further, as shown in FIG. 4, the three types of tooth portions 22 (high tooth portion 22h, middle tooth portion 22m, and low tooth portion 22l) have a so-called skew, and the vertical shape of the tooth portion 22 is a vertical axis. It is inclined 20 ° to the right with respect to (an axis parallel to the rotation axis 8). As described above, the rotating plate 7 rotates counterclockwise. In FIG. 4, the heel approaches the tooth portion 22 from the right side, and the heel approaching the tooth portion 22 from the right side is pushed downward by the skew and discharged. It is pushed out into the chamber 12 and falls. As a result, soot is efficiently discharged.

  Next, the horizontal cross-sectional shape of the tooth part 22 (high tooth part 22h, middle tooth part 22m, low tooth part 22l) will be described.

As is apparent from FIG. 5, the width W <b> 2 of the tooth portion 22 is smaller than the width W <b> 1 of the top portion of the groove portion 21. Therefore, a large number of grooves 21 and teeth 22 are formed in the fixed blade 6 as compared with the prior art products. In the present embodiment, the fixed blade 6 has an inner diameter of 151.4 mm, the groove portion 21 has a width W1 of 4 mm, and the tooth portion 22 has a width W2 of 1.9 mm. It is formed. If both the width W1 and the width W2 are 4 mm, that is, if configured in the same manner as the prior art product, only about 60 grooves 21 and teeth 22 can be formed. Moreover, the cross-sectional area of the groove part 21 of this embodiment is about 8.9 mm < ² >, and is substantially the same as a prior art product. For this reason, when the rotating plate 7 makes one revolution, the bag having a volume about 1.3 times that of the conventional product (≈80 / 60) is crushed. That is, if the rotation speed of the rotating plate 7 is the same, the soot is crushed at a speed about 1.3 times that of the prior art product.

  The cross-sectional shape of the tooth portion 22 is tapered, that is, the width W3 of the base portion of the tooth portion 22 is made larger than the width W2 of the top portion. Therefore, the number of the groove portions 21 can be maximized without impairing the mechanical strength of the tooth portions 22.

  By reducing the width W2 of the tooth portion 22, the frictional resistance that the rotating plate 7 receives from the fixed blade 6 when the rotating plate 7 rotates can be reduced. Therefore, the output of the motor can be small. That is, the motor can be downsized or the power consumption can be reduced.

  The width W2 at the top of the tooth portion 22 may be further reduced. For example, as shown in FIG. 6, the width W2 of the top of the tooth portion 22 may be close to 0, that is, the cross-sectional shape of the tooth portion 22 may be a triangle. If comprised in this way, the frictional resistance which the rotating plate 7 receives from the fixed blade 6 can be minimized. Therefore, the power consumption of the motor can be reduced.

  Since the rotating plate 7 rotates counterclockwise as viewed from above, the rod moves from the right side to the left side of the fixed blade 6 in FIG. Further, the horizontal cross-sectional shape of the groove portion 21 is inclined in a direction in which the rotating plate 7 is greeted. That is, the center line M of the horizontal section of the groove 21 is inclined to the right. For this reason, the resistance when the ridge is introduced into the groove portion 21 is reduced. Therefore, the cocoon can be efficiently crushed. Further, the power for driving the rotating plate 7 can be reduced. That is, the power consumption of the motor can be reduced.

  Next, vertical cross-sectional shapes of the middle tooth portion 22m and the low tooth portion 22l will be described.

  As shown in FIG. 7, in a cross section (that is, a vertical cross section) obtained by cutting the fixed blade 6 along a plane including the rotation axis of the fixed blade 6, an inclined surface 22s is provided at the upper ends of the middle tooth portion 22m and the low tooth portion 22l. Yes. The inclined surface 22s is inclined so as to become lower toward the inner side (rotating shaft 8) of the fixed blade 6. For this reason, even if the scissors ride on the upper ends of the middle tooth portion 22m and the low tooth portion 22l, the scissors slide on the inclined surface 22s and fall to the inside of the fixed blade 6, and on the upper ends of the middle tooth portion 22m and the low tooth portion 22l Does not remain. Therefore, the cocoon can be efficiently crushed.

  Up to this point, the fixed blade 6 having three types of tooth portions 22, that is, the high tooth portion 22h, the middle tooth portion 22m, and the low tooth portion 22l has been described, but the fixed blade 6 is not limited to such a configuration. You may comprise as shown in FIG. 8 or FIG. 8 and 9 are development views showing modifications of the fixed blade 6, and are views of the fixed blade 6 viewed from the inside.

  The fixed blade 6 shown in FIG. 8 is different from that shown in FIG. 4 in that it has no skew, and has a high tooth portion 22h and a low tooth portion 22l, but does not have a middle tooth portion 22m. The high tooth portion 22h is arranged at equal intervals on the fixed blade 6. The fixed blade 6 is divided into several sections by the high tooth portion 22h, and a plurality of low tooth portions 22l are arranged in the section. Thus, the fixed blade 6 shown in FIG. 8 is easy to manufacture because the structure is simpler than that shown in FIG.

  The fixed blade 6 shown in FIG. 9 is common to the fixed blade 6 shown in FIG. 8 in that no skew is provided and no middle tooth portion 22m, and two high tooth portions 22h are adjacent to each other. That is, it is different in that two high tooth portions 22h are arranged in pairs. Here, “pair” means that the low tooth portion 22l is not disposed between the two adjacent high tooth portions 22h. Since the two high tooth portions 22h are arranged in pairs as described above, the load per one high tooth portion 22h is reduced when crushing the pestle. Therefore, wear of the high tooth portion 22h is suppressed.

  The number of the low tooth portions 22l arranged between the adjacent high tooth portions 22h (that is, “sections”) can be arbitrarily selected according to the type of wrinkles to be processed by the disposer 1, etc. As shown in FIG. 10, the best results were obtained when two low tooth portions 22l were arranged in each section. Moreover, although the fixed blade 6 shown in FIG. 10 includes a section in which seven low-tooth portions are continuous, by providing such a section, clogging of wrinkles can be suppressed.

  The number of the high tooth portions 22h arranged on the fixed blade 6 can also be arbitrarily selected, but all of the plurality (usually two) of swing hammers 9 arranged on the rotating plate 7 do not simultaneously hit the high tooth portions 22h. By selecting such an arrangement and number, it is possible to avoid applying a large load to the rotating plate 7 (the electric motor that drives the rotating plate 7). For example, as shown in FIG. 11, when two rotating hammers 9 are provided on the rotating plate 7, an odd number (71 pieces) of tooth portions 22 (high tooth portions 22h and low tooth portions 22l) are provided on the fixed blade 6. If it is arranged at this pitch (here, it means that the central angle with respect to the central axis of the fixed blade 6 is equal), when the swing hammer 9 approaches the high tooth portion 22h in the A portion of FIG. The swing hammer 9 is in a position away from the high tooth portion 22h, that is, since the two swing hammers 9 do not hit the tooth portion 22 at the same timing, a large load is applied to the rotating plate 7 (the electric motor that drives the rotary plate 7). Absent.

  When the example shown in FIG. 11 is generalized, when the rotary plate 7 is provided with N (where N is a natural number) swing hammers 9, the fixed blade 6 has M pieces (where M is a natural number not a multiple of N, In other words, if the tooth portions 22 having a natural number (N and M are in a prime relationship) are arranged at this pitch, the N swing hammers 9 simultaneously strike the tooth portions 22 and the rotating plate 7 (the electric motor for driving). Is not subjected to a large load. For example, when the rotating plate 7 is provided with three swing hammers 9, if ten or eleven tooth portions 22 are arranged on the fixed blade 6 at this pitch, the three swing hammers 9 are simultaneously provided with the tooth portions 22. Never hit.

  The specific configuration of the disposer 1 described above exemplifies the embodiment of the present invention, and the technical scope of the present invention is not limited to the above specific configuration. The present invention can be freely applied, modified or improved without departing from the scope of the technical idea described in the patent.

  For example, the numerical values of the dimensions and angles relating to the shapes of the groove 21 and the tooth portion 22 are merely examples, and the technical scope of the present invention is not limited to those having such dimensions.

  Moreover, although the example (refer FIG. 2) which arrange | positions the eight high tooth parts 22h to the fixed blade 6 at equal intervals in the circumferential direction was shown, the number and arrangement | positioning of the high tooth parts 22h are not limited to this. The number of high tooth portions 22h is not limited to eight. The high tooth part 22h should just be arrange | positioned at intervals (it is not restricted to equal intervals) in the inner periphery of the fixed blade 6, and the inner periphery of the fixed blade 6 should just be divided | segmented into the some division.

  Alternatively, as shown in FIG. 12, the high tooth portion 22h is continuously arranged (without the low tooth portion 22l in between), and the low tooth portion 22l continues in part (two locations in FIG. 12). Partitions may be placed.

  Various known materials and methods can be arbitrarily selected as the material and manufacturing method of the fixed blade 6. A metal is generally selected as the material of the fixed blade 6, but a non-metallic material such as ceramic can also be selected. If it is cast by the lost wax method, it can be manufactured at a low cost with a minimum amount of machining. Alternatively, the lost wax method and machining may be combined or cast using a sand mold, or metal powder may be molded by a press and sintered. You may manufacture only by machining.

  In order to facilitate the manufacture of the fixed blade 6, the horizontal cross-sectional shape of the tooth portion 22 (the high tooth portion 22h, the middle tooth portion 22m, and the low tooth portion 22l) may be simplified. For example, as shown in FIG. 13, the inclined surface on one side of the tooth portion 22 may be perpendicular to the arc 6a constituting the fixed blade 6 (outer). Alternatively, although not shown, the slopes on both sides of the tooth portion 22 may be perpendicular to the arc 6a. If such a shape is selected, manufacture (whether casting or machining) is easier than when the inclined surface is inclined with respect to the arc 6a (the shape shown in FIG. 5). .

  The configuration of the disposer 1 shown in FIG. 1 is a “conceptual configuration”, and components such as fastening elements (bolts, nuts), bearings, seals, and the like that are not necessary for the description of the present invention are illustrated. Omitted. Further, the detailed configuration of the connecting portion between the disposer 1 and the sink 2 is not shown. Needless to say, the presence / absence of structural elements and their morphological features not shown in the drawings do not affect the interpretation of the technical scope of the present invention.

  In addition, this application is based on the Japan patent application 2010-210199 for which it applied on September 17, 2010. The specification of the Japanese Patent Application No. 2010-210199, claims, and the entire drawing are incorporated in the present specification.

  The disposer of the present invention can be used as a disposer that is small in size and capable of high-speed processing.

DESCRIPTION OF SYMBOLS 1 Disposer 2 Sink 3 Upper casing 4 Lower casing 5 Motor housing 6 Fixed blade 7 Rotating plate 8 Rotating shaft 9 Swing hammer 10 Swing shaft 11 Crushing chamber 12 Discharge chamber 13 Discharge pipe 21 Groove portion 22 Tooth portion 22h High tooth portion 22l Low tooth portion 22m Middle tooth part 22s Inclined surface

Claims (12)

A rotating plate that is driven to rotate;
In disposer comprising said groove and teeth on the inner surface of the ring surrounding the rotary plate and the rotary plate is arranged concentrically formed alternately solid Teiha,
The width of the teeth in a cross section of the fixed blade cut along a plane perpendicular to the axis of rotation of the rotary plate is minor than the width of the groove,
The tooth portion of the fixed blade has a high tooth portion having the highest height in the rotation axis direction of the rotating plate, a lowest low tooth portion, and an intermediate height between the high tooth portion and the low tooth portion. There are three types of middle teeth,
The disposer according to claim 1, wherein the middle tooth portion and the low tooth portion are provided with an inclined surface at the upper end thereof that becomes lower as approaching the rotation axis of the rotating plate . 2. The disposer according to claim 1, wherein a shape of the tooth portion in a cross section obtained by cutting the fixed blade along a plane perpendicular to the rotation axis of the rotating plate is such that a tip portion is thinner than a base portion. The high teeth are spaced from the ring and divide the inner surface of the ring into a plurality of compartments;
The disposer according to claim 1, wherein the low tooth portion and the middle tooth portion are arranged in each section. There are two types of sections: a low-tooth section in which only the low-tooth portion is arranged, and a middle-low tooth section in which the middle-tooth portion is arranged in the center and the low-tooth portion is arranged before and after that. ,
The disposer according to claim 3, wherein the low-tooth section and the middle-low tooth section are alternately arranged on an inner surface of the ring . The tooth portion of the fixed blade has two types of a high tooth portion having a high height in the rotation axis direction of the rotating plate and a low tooth portion having a low height,
The high teeth are spaced to the ring, by dividing the inner surface of the ring into a plurality of compartments,
The disposer according to claim 1, wherein the low tooth portion is arranged in each of the sections. The disposer according to claim 5, wherein two low tooth portions are arranged in each of the sections. If N and M are natural numbers that are relatively prime,
N rotating hammers are arranged at equal intervals on the rotating plate,
The disposer according to claim 1, wherein the fixed blade has M tooth portions arranged at equal intervals. On the rotating plate, two swing hammers are arranged at equal intervals,
The fixed blade has an odd number of teeth arranged at equal intervals.
The disposer according to claim 7. The high teeth, disposer of claim 5 which are deployed in two portions paired to the ring, the pair is characterized in that it divides the inner surface of the ring into a plurality of compartments. 2. The center line of the cross-sectional shape of the groove portion in a cross section obtained by cutting the fixed blade along a plane perpendicular to the rotation axis of the rotary plate is inclined in a direction to reach the rotary plate. Disposer. The tooth portion has an inclination angle with respect to the rotation axis of the rotating plate,
2. The disposer according to claim 1, wherein the inclination angle is inclined in a direction of pushing down a heel pressed against the fixed blade by the rotating plate. An inclined surface is formed at the upper end of the tooth part,
The disposer according to claim 1, wherein the inclined surface is lowered in a direction toward the center of the fixed blade.

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