KR20130079538A - Disposer - Google Patents

Abstract

A disposer having a rotating plate driven rotationally and a ring-shaped fixed blade 6 arranged concentrically with the rotating plate, surrounding the rotating plate, and having grooves 21 and teeth 22 alternately formed on the inner side thereof. The width W2 of the tooth portion 22 is smaller than the width W1 of the groove portion 21 in the cross section obtained by cutting the blade 6 in a plane perpendicular to the rotation axis of the rotating plate. The width W2 of the distal end of the toothed portion 22 in the cross section obtained by cutting the fixed blade 6 in a plane perpendicular to the rotation axis of the rotating plate is smaller than the width W3 of the base.

Description

Disposer {DISPOSER}

The present invention relates to a disposer, in particular a disposer having a ring-shaped stationary blade and a rotating plate arranged concentrically with said stationary blade.

The disposer is an apparatus for crushing food waste and mixing with water to generate 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 pushes up food waste with a fixed blade by the centrifugal force generated by rotation of a rotating plate, and breaks down food waste (for example, patent document 1). In addition, in this specification, the disposer disclosed by patent document 1 may be called "a prior art product."

The fixed blade is configured by alternately arranging a plurality of grooves and teeth on the inner surface of a ring made of metal. The groove portion refers to a recess formed on the inner surface of the ring, and refers to a convex portion formed on the tooth surface and the inner surface of the ring. In addition, the bottom part of a groove part means the lowest part (part which is far from the center of a ring) of a groove part. The top part of a toothed part means the highest part (= part near center of a ring) of a toothed part.

The groove part and the tooth part of a prior art product are substantially spherical in the cross section (horizontal cross section) which cut the fixed blade in the plane perpendicular | vertical to the rotation center axis of a ring, and the width | variety of the top part of a tooth part, and the width of the bottom part of a groove part is substantially It is the same (FIG. 8 of patent document 1).

In addition, when the size of the particles obtained by crushing the food waste with the disposer, that is, the size of the food waste particles contained in the slurry, may be filled in the drain pipe, the size of the food waste particles is limited to a predetermined size or less. In addition, the dimension of food waste particle | grains is determined by the magnitude | size of the cross-sectional shape of a groove part. Therefore, the cross-sectional shape of the groove portion of the fixed blade is limited to the predetermined size or less. On the other hand, if the cross-sectional shape of the groove portion is made smaller than necessary, the food waste may be filled in the groove. According to the experience of the inventor of the present invention, when the cross-sectional area of the groove portion is about 9 mm 2 (width 4 mm, depth 2.3 mm), good results can be obtained.

Published Unexamined Patent Publication No. 2009-22913

As a matter of course, the disposer requires improvement and miniaturization of the processing speed (amount of food waste broken down in unit time).

Naturally, increasing the rotational speed (rotational speed) of the rotating plate will naturally improve the processing speed. However, when the rotation speed is increased, there is a problem that the noise and vibration increase. In general, inexpensive induction motors are used for the disposer, but high-speed induction motors are not easy to obtain because they are expensive. Although the change of the rotational speed is comparatively easy, a direct current motor requires the replacement by abrasion of a brush, and there exists a problem which is inconvenient to use.

Moreover, when the cross-sectional area of the groove portion is increased, the processing speed can be improved without changing the rotational speed of the rotating plate. However, as described above, when the cross-sectional area of the groove is enlarged, the food waste particles become large, and there is a fear of filling in the drain pipe.

In addition, if the number of grooves is increased, the processing speed can be improved without changing the rotational speed of the rotating plate and increasing the size of the food waste particles. However, increasing the number of grooves increases the diameter of the fixed blade, which contradicts the request for miniaturization of the disposer.

The present invention has been made under such a background, and an object of the present invention is to provide a disposer capable of improving the processing speed without changing the rotational speed of the rotating plate, the diameter of the fixed blade, and the size of the food waste particles.

In order to achieve the above object, the disposer of the present invention is disposed in the rotational plate and the rotating plate which is rotationally driven to surround the rotating plate, the inner surface has a ring-shaped fixed blade formed with alternating grooves and teeth on the inner surface The width of the tooth portion is smaller than the width of the groove portion in the cross section obtained by cutting the fixed blade into a plane perpendicular to the rotation axis of the rotating plate.

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

The tooth portion of the fixed blade includes a high tooth portion having the highest height in the rotational axis direction of the rotating plate, a lowest low tooth portion, and a middle of the high tooth portion and the low tooth portion. There are three types of the middle tooth part which has a height, The said high tooth part is arrange | positioned at intervals with the said fixed blade, and divides the inner surface of the said fixed blade into a some division, and each said division has the said low A tooth part and the said middle tooth part may be arrange | positioned.

The compartment includes two types of low toothed section in which only the low toothed section is disposed, and a middle toothed section in which the middle toothed section is disposed in the center, and the low toothed section is arranged before and after. The compartments may be alternately arranged on the inner side of the fixed blade.

Alternatively, the toothed portion of the fixed blade includes two types of high toothed portion having a high height in the rotational axis direction of the rotary plate, and a low toothed portion having a low height, and the high toothed portion is disposed at a distance from the fixed blade. The inner surface of the fixed blade may be divided into a plurality of sections, and the low teeth may be disposed in the sections.

Moreover, the said low tooth part may be comprised so that two may be arrange | positioned in each of the said partitions.

Alternatively, when N and M are natural numbers having a small relationship with each other, N swing hammers may be arranged at equal intervals on the rotating plate, and the M teeth may be arranged at equal intervals on the fixed blade.

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

Moreover, the said high tooth part may be arrange | positioned 2 pairs by the said fixed blade, and the said pair may be comprised so that the inner surface of the said fixed blade may be divided into several division.

Moreover, in the cross section which cut | disconnected the said fixed blade in the plane perpendicular | vertical to the rotating shaft of the said rotating plate, you may make it the centerline of the cross-sectional shape of the said groove part incline in the direction which meets the said rotating plate.

The tooth portion may have an inclination angle with respect to the rotation axis of the rotary plate, and the inclined angle may be inclined in the direction of pushing down the food waste capable of pushing up the fixed blade by the rotary plate.

Moreover, the inclined surface is formed in the upper end of the said tooth part, and the said inclined surface may be made low in the direction toward the center of the said fixed blade.

According to this invention, since the width | variety of the tooth part of a fixed blade is smaller than the width of a groove part, more groove parts can be arrange | positioned to the fixed blade of the same dimension. Therefore, the processing speed of the disposer can be increased. Moreover, when the width | variety of the tooth part of a fixed blade is made small, the frictional resistance which a rotating plate receives by a fixed blade can be made small. Therefore, the power consumption of the disposer can be reduced.

Further, if the tip portion is made thinner than the base portion in the cross section in which the fixed blade is cut in a plane perpendicular to the rotation axis of the rotating plate, the number of the groove portions can be maximized while securing the mechanical strength of the tooth portion.

If three types of teeth having different heights are formed on the fixed blade, that is, the high tooth portion, the middle tooth portion, and the low tooth portion, then the food waste is loosely cut at the high tooth portion, and then further cut at the middle portion. Since it can be shredded at the low tooth part, food waste can be shredded efficiently. That is, the processing speed of a disposer improves.

In the case where N and M are natural numbers having a small relationship with each other, N swing hammers are arranged at equal intervals on the rotating plate, and M teeth are arranged at equal intervals on the fixed blade (for example, two swing hammers on the rotating plate). If it is arranged at equal intervals and odd teeth are arranged at equal intervals on the fixed blade, all the swing hammers do not come into contact with the teeth at the same time, so that the load on the rotating plate (motor driving) can be reduced.

In addition, when the fixed blade is cut in a plane perpendicular to the rotation axis of the rotating plate, when the center line of the cross-sectional shape of the groove portion is inclined in the direction to meet the rotating plate, the food waste is smoothly introduced into the groove portion. Can shred efficiently. In other words, the processing speed of the disposer is further improved.

Further, when the inclined angle is given to the tooth shaft with respect to the rotating shaft of the rotating plate, and tilted in the direction of pushing down the food waste pushed up by the fixed blade by the rotating plate, the crushed food waste is smoothly discharged. Moreover, when the inclination angle is provided to the tooth portion, the length of the tooth portion can be increased, so that the processing speed of the disposer is improved.

In addition, when the inclined surface is lowered in the direction toward the center of the fixed blade at the upper end of the toothed portion, since the food waste sitting on the upper end of the toothed portion falls on the inclined surface, food waste can be more efficiently crushed. In other words, the processing speed of the disposer is further improved.

1 is a conceptual cross-sectional view of a disposer.
2 is a plan view of the fixed blade.
3 is a perspective view of the fixed blade.
4 is a developed view of the fixed blade viewed from the inside (A direction in FIG. 2).
5 is a horizontal cross-sectional view of the fixed blade taken along line CC ′ of FIG. 4.
6 is a horizontal sectional view showing a modification of the fixed blade.
7 is a vertical cross-sectional view of the fixed blade, (a) is a cross-sectional view of the middle teeth, (b) is a cross-sectional view of the lower teeth.
8 is a developed view showing a modification of the fixed blade.
It is a developed 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 cross section which shows the modification of a fixed blade.

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

1 is a conceptual cross-sectional view of the disposer 1 showing an example of an embodiment of the present invention. The disposer 1 is a device installed below the sink 2 to crush food waste (not shown) dropped from the sink 2, and is disposed below the upper casing 3 and the upper casing 3. The lower casing 4 and the motor housing 5 provided below the lower casing 4 are provided.

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

The food waste dropped from the sink 2 enters the crushing chamber 11 through the upper casing 3. The food waste entering the crushing chamber 11 is blown by the centrifugal force by the rotation of the rotating plate 7 in the radial direction of the rotating plate 7, and is pushed by the swing hammer 9 to the fixed blade 6. The food waste pushed by the fixed blade 6 is crushed, falls to the discharge chamber 12, and is discharged to the discharge pipe 13.

In addition, the form of the fixed blade 6 which comprises this disposer 1 is demonstrated in detail with reference to FIGS. Here, FIG. 2 is a top view (FIG. 1 seen from the A direction of FIG. 1) of the fixed blade 6, and FIG. 3 is a perspective view of the fixed blade 6. As shown in FIG. 4 is a developed view of the fixed blade 6 viewed from the inside (B direction in FIG. 2). 5 is a horizontal sectional view which cuts the fixed blade 6 by the CC 'line | wire of FIG. 6 is a vertical sectional view of the fixed blade 6. As shown in FIG.

As clearly shown in Figs. 2 and 3, the fixed blade 6 is formed in a ring shape as a whole. Moreover, many groove part 21 and the tooth | gear part 22 are alternately arrange | positioned at the inner surface of a ring. Here, the groove portion 21 refers to a recess formed in the inner surface of the fixed blade 6. The tooth part 22 refers to the convex part formed in the inner surface of the fixed blade 6. In addition, as shown in FIG. 2, when the rotating plate 7 is seen from above the disposer 1, it rotates in the counterclockwise direction (direction shown by the arrow R).

3 and 4, the fixed blade 6 is provided with three types of teeth (@ 2) having different heights. That is, the fixed blade 6 has a high toothed portion 22h having the same height as that of the fixed blade 6, and a low toothed portion 22l having a height of about 1/2 of the height of the fixed blade 6. And a middle tooth portion 22m having a height between the high tooth portion 22h and the low tooth portion 22l.

The high toothed portion 22h is arranged circumferentially at a 45 ° pitch in the plan view (FIG. 2). That is, the fixed blade 6 has eight high teeth 22h, and is arrange | positioned 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 teeth portion 22h. The eight compartments include an X compartment in which the low toothed portion 22l and the middle toothed portion 22m are arranged in a mixed state, and a Y compartment in which only the low toothed portion 22l is arranged. It is arrange | positioned (refer FIG. 4). In more detail, one middle tooth part 22m is arrange | positioned at the center of the X compartment, and four low tooth part 22l is arrange | positioned between the both sides, ie, between the middle tooth part 22m and the high tooth part 22h. It is. Moreover, nine low teeth parts 22l are arrange | positioned at the Y division.

Thus, since the fixed blade 6 is provided with three types of tooth | gear parts 22 which differ in height, ie, the high tooth | gear part 22h, the middle tooth | gear part 22m, and the low tooth | gear part 22m, the fixed knife | blade 6 The food waste pushed up by) is loosely cut in the high toothed portion 22h, and then further cut in the middle toothed portion 22m, and finally finely crushed in the low toothed portion 22l, and discharge chamber 12 To fall. Therefore, food waste can be efficiently shredded.

Moreover, as shown in FIG. 4, three types of tooth | gear parts 22 (high tooth | gear part 22h, middle tooth | gear part 22m, low tooth | gear part 22l) are equipped with what is called a skew, The elevation of 22 is inclined 20 ° to the right with respect to the vertical axis (an axis parallel to the rotating shaft 8.) As described above, since the rotating plate 7 rotates counterclockwise, the food waste in FIG. The food waste 22 that approaches the toothed portion 22 on the right side, and the food waste 22 that approaches the toothed portion 22 on the right side is pushed down by the skew, and is pushed down to the discharge chamber 12 to fall. Garbage is discharged efficiently.

Next, the horizontal cross-sectional shape of the toothed part 22 (high toothed part 22h, middle toothed part 22m, low toothed part 22l) is demonstrated.

As clearly shown in FIG. 5, the width W2 of the tooth portion 22 is smaller than the width W1 of the top portion of the groove portion 21. Therefore, in the fixed blade 6, many groove parts 21 and the tooth | gear part 22 are formed compared with the prior art product. In the present embodiment, since the inner diameter of the fixed blade 6 is 151.4 mm, the width W1 of the groove portion 21 is 4 mm, and the width W2 of the teeth 22 is 1.9 mm, the fixed blade 6 Eighty groove portions 21 and toothed portions 22 are formed in the grooves. On the contrary, when the width W1 and the width W2 are both 4 mm, that is, configured in the same manner as in the prior art, only about 60 grooves 21 and toothed teeth 22 are 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 rotates once, food waste having a volume of about 1.3 times () 80/60) of the conventional product is crushed. That is, if the rotating speed of the rotating plate 7 is the same, the food waste is crushed at about 1.3 times the speed of the prior art product.

The cross-sectional shape of the toothed part 22 is thin, that is, the width W3 of the base of the toothed part 22 is made larger than the width W2 of the top part. Therefore, the number of the grooves 21 can be maximized without damaging the mechanical strength of the toothed portion 22.

By making the width W2 of the tooth | gear part 22 small, the frictional resistance which the rotating plate 7 receives by the fixed blade 6 when the rotating plate 7 rotates can be made small. Therefore, the motor output may be small. That is, the motor can be miniaturized or the power consumption can be reduced.

The width W2 of the top part of the tooth part 22 may be made smaller. For example, as shown in FIG. 6, the width W2 of the top part of the tooth | gear part 22 may be close to zero, ie, the cross-sectional shape of the tooth | gear part 22 may be made into a triangle. With this configuration, the frictional resistance that the rotary plate 7 receives from the fixed blade 6 can be minimized. Therefore, the power consumption of the motor can be reduced.

Since the rotary plate 7 rotates counterclockwise when viewed from above, the food waste in FIG. 5 moves the rotary plate 7 from the right side to the left side of the fixed blade 6. In addition, the horizontal cross-sectional shape of the groove part 21 is inclined in the direction which receives the rotating plate 7. As shown in FIG. That is, the center line M of the horizontal cross section of the groove part 21 inclines to the right side. For this reason, the resistance at the time of introducing food waste into the groove part 21 becomes small. Therefore, it can be crushed efficiently. Moreover, the power which drives the rotating plate 7 can be made small. In other words, the power consumption of the motor can be reduced.

Next, the vertical cross-sectional shape of the middle tooth part 22m and the low tooth part 22l is demonstrated.

As shown in FIG. 7, in the cross section (that is, the vertical cross section) in which the fixed blade 6 is cut into a plane including the rotation axis of the fixed blade 6, the middle tooth portion 22m and the low tooth portion 22l are formed. The inclined surface 22s is provided in the upper end. This inclined surface 22s inclines so that it may become low toward the inner side (rotation shaft 8) of the fixed blade 6. As shown in FIG. For this reason, even if food waste rises to the upper end of the middle tooth part 22m and the low tooth part 22l, food waste falls to the inside of the fixed blade 6 on the inclined surface 22s, and the middle tooth part 22m and It does not remain at the top of the low toothed portion 22l. Therefore, food waste can be efficiently shredded.

The fixed blade 6 having three types of teeth 22, that is, high teeth 22h, middle teeth 22m and low teeth 22l has been described so far, but the fixed blade 6 Is not limited to such things. It may be configured as shown in Fig. 8 or 9. 8 and 9 are exploded views showing a modification of the fixed blade 6, and are views of the fixed blade 6 viewed from the inside.

Although the fixed blade 6 shown in FIG. 8 does not have a skew, and has the high tooth | gear part 22h and the low tooth | gear part 22l, it does not have a middle tooth | gear part 22m, FIG. It is different from that shown in 4. The high toothed part 22h is arrange | positioned at the fixed blade 6 at equal intervals, and the fixed blade 6 is divided into several divisions by the high toothed part 22h, and several low toothed parts 22l in the said partition. ) Is arranged. Thus, since the structure of the fixed blade 6 shown in FIG. 8 is simple compared with that shown in FIG. 4, manufacture is easy.

The fixed blade 6 shown in FIG. 9 has a high toothed portion 22h in common with the fixed blade 6 shown in FIG. 8 in that it does not include the skew and does not include the middle tooth portion 22m. They are adjacent to each other, that is, they differ in that they are arranged in pairs of two high toothed portions 22h. In addition, "pair" here means that the low tooth part 22l is not arrange | positioned between two high tooth part 22h mutually adjacent. In this way, since the two high toothed portions 22h are arranged in pairs, the load per one of the high toothed portions 22h is reduced when the food waste is crushed. Therefore, abrasion of the high toothed portion 22h is suppressed.

Although the number of the low tooth parts 22l arrange | positioned between the adjacent high tooth parts 22h (namely, "compartment") can be arbitrarily selected according to the kind of food waste to be processed of the disposer 1, the inventors According to the experimental results of Fig. 10, better results were obtained when two low-toothed portions 22l were arranged in each compartment as shown in Fig. 10. In addition, although the fixed blade 6 shown in FIG. 10 includes the section in which seven low toothed parts continue, by providing such a partition, full food waste can be suppressed.

Although the number of the teeth 22h arrange | positioned at the fixed blade 6 can also be selected arbitrarily, all of the swing hammers 9 arrange | positioned at two or more (usually 2) on the rotating plate 7 simultaneously have the teeth 22h. By selecting the arrangement and the number of pieces that do not collide with, it is possible to avoid a large load on the rotating plate 7 (motor driving the motor). For example, as shown in Fig. 11, in the case where the swing plate 7 is provided with two swing hammers 9, the fixed blade 6 has an odd number of teeth (71) of teeth 22 (high teeth). (22h) and the low toothed portion 22l) at an appropriate pitch (here, the center angle with respect to the central axis of the fixed blade 6 is the same), the swing hammer 9 in the portion A of FIG. When approaching the high toothed portion 22h, the swing hammer 9 in the B portion is at a position away from the high toothed portion 22h. That is, since the two swing hammers 9 do not touch the toothed portion 22 at the same timing, the large load is not applied to the rotating plate 7 (the electric motor for driving).

Generalizing the example shown in FIG. 11, when the rotating plate 7 is equipped with N swing hammers 9 (where N is a natural number), M fixed blades 6 (where M is N When the teeth 22 of the natural water, that is, the natural water in which N and M are in a small relationship with each other, are arranged at an appropriate pitch, the N swing hammers 9 are simultaneously rotated in the tooth 22. A large load is not applied to (the electric motor which drives). For example, when the swing plate 7 is provided with three swing hammers 9, if the ten or eleven teeth 22 are arranged at a suitable pitch on the fixed blade 6, the three swing hammers 9 are provided. Does not touch the tooth 22 at the same time.

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

For example, the numerical value of the dimension and angle regarding the shape of the groove part 21 and the tooth | gear part 22 is an illustration to the last, and the technical scope of this invention is not limited to having such a dimension.

In addition, although the example (refer FIG. 2) which arrange | positions eight high toothed parts 22h in the circumferential direction at equal intervals was shown in the fixed blade 6, the number and arrangement | positioning of the high toothed parts 22h are not limited to this. . The number of high toothed portions 22h is not limited to eight. The high toothed part 22h is arrange | positioned at intervals (not limited to equal intervals) on the inner circumference of the fixed blade 6, and may divide the inner circumference of the fixed blade 6 into several divisions.

Or, as shown in FIG. 12, the high toothed part 22h is arrange | positioned continuously (without placing the low toothed part 22l in between), and the low toothed part 22l in a part (two places in FIG. 12). You may arrange a continuous section.

As the raw material and the manufacturing method of the fixed blade 6, various well-known raw materials and methods can be selected arbitrarily. Although metal is generally selected for the raw material of the fixed blade 6, a nonmetallic material, for example, a ceramic, can also be selected. When casting by the lost wax method, the machining amount can be minimized and it can be manufactured at low cost. Alternatively, the lost wax method and machining may be combined, cast using a sand mold, or metal powder may be molded and sintered by a press. You may manufacture only by machining.

In order to facilitate the manufacture of the fixed blade 6, the horizontal cross-sectional shape of the toothed portion 22 (high toothed portion 22h, middle toothed portion 22m, low toothed portion 22l) may be simplified. For example, as shown in FIG. 13, one inclined surface of the tooth | claw part 22 may be perpendicular to the circular arc 6a which comprises the fixed blade 6 (outer side). Alternatively, although not shown, the inclined surfaces on both sides of the toothed portion 22 may be perpendicular to the circular arc 6a. When such a shape is selected, manufacture (even casting or machining) becomes easy compared with the case where the inclined surface is inclined with respect to the circular arc 6a (shape shown in FIG. 5).

In addition, the structure of the disposer 1 shown in FIG. 1 is a "conceptual structure", and the illustration which is unnecessary for description of this invention, for example, a fastening element (bolt, a nut), a bearing, a thread, etc. is abbreviate | omitted. . In addition, illustration of the detailed structure of the collection part of the disposer 1 and the sink 2 is abbreviate | omitted. It is natural that the presence or absence of these components which are not shown in figure, and the morphological characteristic do not affect the interpretation of the technical scope of this invention.

The present application is also based on Japanese Patent Application No. 2010-210199 filed on September 17, 2010. It accepts with reference to the specification, claim, and whole drawing of Japanese Patent Application No. 2010-210199 in this specification.

[Industrial applicability]

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

1: disposer
2: sink
3: upper casing
4: lower casing
5: motor housing
6: fixed blade
7: tumbler
8: axis of rotation
9: swing hammer
10: swing shaft
11: crushing chamber
12: discharge chamber
13: discharge pipe
21: home
22: tooth part
22h: high teeth
22l: low tooth
22m: middle tooth
22s: slope

Claims (12)

Rotary plate driven by rotation,
A disposer having a ring-shaped fixed blade disposed concentrically with said rotating plate and surrounding said rotating plate and having grooves and teeth formed alternately on an inner side thereof;
And the width of the tooth portion is smaller than the width of the groove portion in a cross section obtained by cutting the fixed blade in a plane perpendicular to the rotation axis of the rotating plate. The method of claim 1,
In the cross section which cut | disconnected the said fixed blade to the plane perpendicular | vertical to the rotation axis of the said rotating plate, the shape of the said tooth | gear part is a disposer characterized by the tip part becoming thinner than a base part. The method of claim 1,
The tooth part of the fixed blade has three kinds of high tooth parts having the highest height in the direction of the rotation axis of the rotating plate, the lowest low tooth part and the middle tooth part having the middle height of the high tooth part and the low tooth part,
The high tooth portion is spaced apart from the fixed blade, to divide the inner surface of the fixed blade into a plurality of compartments,
Disposer characterized in that the said low tooth part and the said middle tooth part is arrange | positioned at each said division. The method of claim 3, wherein
There are two types of partitions, a low toothed section in which only the low toothed section is arranged, and a middle and low toothed section in which the middle toothed section is arranged at the center and before and after the low toothed section.
The low toothed section and the middle and low toothed section are disposed alternately on the inner surface of the fixed blade. The method of claim 1, wherein
The toothed portion of the fixed blade includes two types of high toothed portion in the direction of the rotation axis of the rotating plate, and a low toothed portion having a low height,
The high tooth portion is spaced apart from the fixed blade, to divide the inner surface of the fixed blade into a plurality of compartments,
A disposer, characterized in that the low tooth portion is arranged in each of the compartments. 6. The method of claim 5,
The said low tooth part is arrange | positioned two in each of the said partitions, The disposer characterized by the above-mentioned. The method of claim 1,
If N and M are small relative natural numbers,
N swing hammers are arranged at equal intervals on the rotating plate,
Disposer, characterized in that the M teeth teeth are arranged at equal intervals on the fixed blade. 8. The method of claim 7,
In the rotating plate, two swing hammers are arranged at equal intervals,
The fixed blade has an odd number of teeth arranged at equal intervals. 6. The method of claim 5,
The said high tooth part is arrange | positioned two by one on the said fixed blade, The said pair divides the inner surface of the said fixed blade into a some division, The disposer characterized by the above-mentioned. The method of claim 1,
And a center line of the cross-sectional shape of the groove portion inclined in a direction to meet the rotating plate in a cross section obtained by cutting the fixed blade into a plane perpendicular to the rotation axis of the rotating plate. The method of claim 1,
The tooth portion has an inclination angle with respect to the rotation axis of the rotating plate,
The inclined angle of the disposer is inclined in the direction of pushing down the food waste pushed up to the fixed blade by the rotating plate. The method of claim 1,
An inclined surface is formed at the upper end of the tooth portion,
The said inclined surface is low in the direction toward the center of the said fixed blade, The disposer characterized by the above-mentioned.

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