disposer

The disposer's inclined surface and arc-shaped design enhance crushing efficiency by guiding food waste to blades and reducing adhesion, addressing inefficiencies in existing models.

JP7720557B2Active Publication Date: 2025-08-08MARUICHI VALVE CO LTD
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Patent Information

Application Number
JP2021080390
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-05-11
Publication Date
2025-08-08
Estimated Expiration
2041-05-11

AI Technical Summary

Technical Problem

Existing disposers face inefficiencies in crushing kitchen waste and food waste due to conflicting elements in the grinding mechanism, leading to inefficient crushing and scattering of food waste when the rotating plate rotates at high speed.

Method used

The disposer features a crushing chamber with an inclined surface on its inner surface, guiding food waste downward and ensuring it is efficiently crushed by fixed and rotary blades, and an arc-shaped inner surface to reduce adhesion and accommodate larger waste.

Benefits of technology

The inclined surface guides food waste to the blades efficiently, preventing bouncing and enhancing crushing efficiency, while the arc-shaped design reduces adhesion and allows for larger waste to be processed effectively.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a disposer which can crush kitchen waste and raw refuse efficiently in whole even if the disposer is operated in high power.SOLUTION: A disposer comprises: a dumping port through which kitchen waste is dumped; a crushing chamber which is located below the dumping port and stores and crushes the kitchen waste dumped through the dumping port; and a discharge port which discharges the kitchen waste crushed in the crushing chamber to the downstream side. Further, the crushing chamber has a substantially cylindrical shape and comprises: an input port which is located at its upper end portion and used to place the kitchen waste from the dumping port into the crushing chamber; a fixed blade fixed to an inner surface of the crushing chamber along a peripheral edge; and a rotary blade which is provided at the lower side of the crushing chamber, rotates around a center axis of the crushing chamber in the crushing chamber, and cuts the kitchen waste with the fixed blade. Inclined surfaces, which start at the input port, are inner surfaces of the crushing chamber, and continue to a height position of the rotary blade or the fixed blade, are provided.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a disposer that crushes food residue, leftover food, etc. and discharges them into sewerage. [Background technology]

[0002] BACKGROUND ART Garbage disposers have been known as devices that dispose of kitchen waste and leftover food generated during cooking by finely grinding the waste and discharging it into a sewer via a treatment tank or the like. To briefly explain the structure of a garbage disposal, it has a disposal port in the sink for disposing of kitchen waste, Kitchen waste and leftover food are thrown into the disposer body through this disposal port, where they are crushed and processed, and then discharged into the sewer through the discharge port via a treatment tank or the like. The disposer body is located below the disposal port and includes a crushing chamber that stores and crushes the kitchen waste dumped from the disposal port, and a discharge port that discharges the crushed kitchen waste in the crushing chamber downstream. It is equipped with: The crushing chamber is roughly cylindrical in shape and is composed of an inlet at its upper end for introducing food waste from the dumping port into the crushing chamber, a fixed blade fixed along the periphery of the inner surface of the crushing chamber, a turntable provided below the crushing chamber and rotating within the crushing chamber around the central axis of the crushing chamber, and a rotating blade provided on the turntable that cuts the food waste and garbage by pinching it between the fixed blade and the turntable, and the crushed food waste and garbage is discharged downward through the gap between the fixed blade and the turntable and discharged from the discharge port. The fixed blade is a ring-shaped body made of metal material and has a slit on the inside surface that runs diagonally downward, and kitchen waste, food waste, etc. are pinched between this slit and the rotating blade, and are scraped off and crushed. The grinding chamber is also equipped with a water supply section that is connected to a pipe branching off from the water supply pipe, and when the disposer is operating, an appropriate amount of water is supplied from this water supply section, allowing the ground kitchen waste and other food waste in the grinding chamber to be discharged through the outlet. The crushed kitchen waste and food waste passes through the slits in the fixed blade, descends below the fixed blade and the rotating plate, and is discharged from the crushing chamber toward the discharge port. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2020-131075 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] In the above-mentioned disposer, the rotating plate rotates with great force, rotating the rotary blades to crush kitchen waste and food waste. Here, the kitchen waste and food waste inserted through the inlet is thrown to the outer periphery by the rotation of the rotating plate, where it is pinched between the rotating blade and the fixed blade and crushed. However, in reality, while the kitchen waste and food waste are thrown to the outer periphery with great force, the amount of food waste being crushed often does not keep up with the amount of food waste and food waste being sent to the outer periphery, and the food waste is often bounced upward from the inner surface of the crushing chamber. The kicked-up food waste and food waste must descend to the height of the rotating blade and the fixed blade before they can be crushed. As a result, to efficiently crush the food waste using the fixed blade and the rotating blade, the rotating plate needs to rotate at high speed. However, when the rotating plate rotates at high speed, the food waste and food waste are bounced and scattered throughout the crushing chamber, again resulting in inefficient crushing. As such, there were conflicting elements in the disposer mechanism that made it difficult to efficiently grind materials, and it was not easy to increase efficiency. The present invention was invented in consideration of the above problems, and aims to provide a disposer that can efficiently grind kitchen waste and food waste by harmonizing conflicting elements in the disposer's grinding mechanism. [Means for solving the problem]

[0005] The present invention as set forth in claim 1 comprises a dumping port for dumping kitchen waste, The aforementioned Below the dumping site, The aforementioned a crushing chamber that stores and crushes kitchen waste dumped from the dumping port; The aforementioned A discharge port for discharging the food waste crushed in the crushing chamber downstream; A disposer for crushing and processing kitchen waste, comprising: The aforementioned The crushing chamber, It has a roughly cylindrical shape and has an upper end portion The aforementioned Kitchen waste from the dumping site The aforementioned An inlet for feeding into the grinding chamber; The aforementioned a fixed blade fixed along the periphery of the inner surface of the crushing chamber; The aforementioned It is provided below the grinding chamber, The aforementioned In the grinding chamber The aforementioned It rotates around the center axis of the grinding chamber and grinds the food waste. The aforementioned A rotary blade that cuts together with the fixed blade. The aforementioned Starting from the inlet, The aforementioned An inner surface of the grinding chamber, The aforementioned Rotary blade, or The aforementioned Continues up to the fixed blade height Multiple Provide an inclined surface 、 the inclined surface is formed on the lower surface of a protruding portion formed on the inner surface of the crushing chamber, and is inclined downward along the rotation direction of the rotary blade, The inner surface of the crushing chamber is configured to have an arc from the inlet to the height position of the rotary blade or the fixed blade. This is a disposer characterized by the above.

[0006] The present invention according to claim 2 is, in plan view, The aforementioned The inclined surface The aforementioned The disposer according to claim 1 is characterized by having an odd rotationally symmetric shape centered on the inlet. [Effects of the Invention]

[0008] In the present invention described in claim 1, the inclined surface on the inner surface of the grinding chamber guides food waste, food waste, etc. downward and is crushed by the fixed blades and rotary blades. Specifically, the food waste, food waste, etc. in the grinding chamber are thrown from the center of the grinding chamber toward the outer periphery (toward the inner surface of the grinding chamber) in a spiral motion by the rotating disk. Therefore, the food waste, food waste, etc. are forced outward and horizontally along the circumference toward the inner surface of the grinding chamber. When the food waste, food waste, etc. contacts the inclined surface, the stress moving horizontally along the circumference is converted into downward stress by the inclined surface, causing the food waste, food waste, etc. to descend downward along the inclined surface and be guided to the position of the rotating blades and fixed blades for efficient crushing. In other words, even when the rotating disk is rotated at high speed to increase the crushing efficiency of the rotating blades and fixed blades, the inclined surface prevents the food waste, food waste, etc. from bouncing off and guides them to the rotating blades and fixed blades, thereby enabling efficient crushing of the food waste, food waste, etc. In particular, in the present invention, an inclined surface is provided from the inlet to the height of the rotary blade or fixed blade, so that even if kitchen waste or food waste jumps to any position in the grinding chamber, it can be guided to the rotary blade or fixed blade without any hindrance. Also, claims 1 In the present invention described in , the adhesion of food waste, garbage, etc. to the inner surface of the grinding chamber can be reduced by making the inner surface of the grinding chamber arc-shaped. If a corner where the top surface and the side surface intersect is provided, when food waste or garbage adheres to this corner, it will adhere to two places, the top surface and the side surface, making it difficult to fall off, but by making the inner surface of the grinding chamber arc-shaped, the food waste will always adhere to only one place, making it possible to reduce the adhesion of food waste, garbage, etc. to the inner surface. Also, claims 2 In the present invention described above, when viewed from above, the inclined surfaces form an odd rotationally symmetric shape with the inlet as the center, so that there is no inclined surface at the opposite position to the inclined surface based on the center of the grinding chamber, and therefore the width of the grinding chamber can be used more widely, making it possible to grind relatively large kitchen waste and garbage. [Brief explanation of the drawings]

[0009] [Figure 1]FIG. 10 is a reference diagram showing the construction state of the first embodiment. [Figure 2] FIG. 1 is a reference diagram showing the cross-sectional state of the disposer of the first embodiment. [Figure 3] 3 is a cross-sectional view of FIG. 2 along AA'. [Example]

[0010] A first embodiment of the present invention will be described below with reference to the drawings. 3 shows substantially the bottom view of the grinding chamber 2. The shape of the grinding chamber 2 in plan view is determined by referring to the shape obtained by symmetrically inverting FIG. The first embodiment of the present invention shown in FIG. 1 comprises a sink N, a disposer body 1, and a drainage connection pipe 7, which will be described below. The sink N is a drainage device equipped with a sink S as a tank body, and is composed of a countertop T equipped with the sink S, and a box-shaped cabinet C that supports the countertop T. The sink S also has a disposal port 1a for disposing of kitchen waste, food waste, etc. The disposer body 1 is an apparatus placed below the disposal port 1a, and comprises a crushing chamber 2 that stores and crushes kitchen waste disposed of from the disposal port 1a, and a discharge port 1b that discharges the kitchen waste crushed in the crushing chamber 2 downstream. The crushing chamber 2 of this embodiment is generally cylindrical, or more precisely, as shown in Fig. 1, generally hemispherical and cylindrical, and is composed of an inlet 2a at its upper end for throwing food waste from the dumping port 1a into the crushing chamber 2, fixed blades 3 fixed along the periphery of the inner surface of the crushing chamber 2, a turntable 5 provided below the crushing chamber 2 and rotating around the central axis of the crushing chamber 2 within the crushing chamber 2, rotary blades 4 provided on the turntable 5 for cutting food waste and garbage by pinching them between the turntable 5 and the fixed blades 3, and a water supply unit 8 with a piping branched from the water supply piping. The turntable 5 rotates at high speed by a motor, and as mentioned above, can reliably crush even hard food waste and garbage. In addition, the water supply section 8 provided in the grinding chamber 2 supplies an appropriate amount of water into the grinding chamber 2 when the disposer is operating, so that the ground kitchen waste and other food waste in the grinding chamber 2 can be smoothly discharged through the discharge outlet 1b. The crushed kitchen waste and raw garbage are discharged downward through slits in the fixed blade 3 (described later) and then discharged from the discharge port 1b. The fixed blade 3 is a ring-shaped member made of metal and has a slit on its inner surface that faces diagonally downward, and the kitchen waste, food waste, etc. is pinched between this slit and the rotary blade 4, so that it is scraped off and crushed. The crushed kitchen waste, food waste, etc. falls downward through the slit of the fixed blade 3 and is discharged from the crushing chamber 2 toward the discharge port 1b. Furthermore, the disposal port 1a and the input port 2a are connected by a connecting pipe 6, and the disposal port 1a is provided with a lid member 1c that closes the disposal port 1a. For safety reasons, the disposer is configured not to operate unless the disposal port 1a is closed with the lid member 1c. 2, the crushing chamber 2 of this embodiment has three inclined surfaces 2c on the inner surface of the crushing chamber 2, which start from the charging port 2a and continue to the height position of the rotary blade 4 or the fixed blade 3, so as to have a rotationally symmetric shape about the charging port 2a in a plan view. That is, the protruding portion 2b and the inclined surfaces 2c of this embodiment are configured to have a three-way rotationally symmetric shape about the charging port 2a. As shown in Figures 2 and 3, a protruding portion 2b is provided on the inner surface of the grinding chamber 2, and an inclined surface 2c is provided on the underside of this protruding portion 2b. The inclined surface 2c is inclined in the direction that the kitchen waste, food waste, etc. move downward along the inclined surface 2c when they move in the direction of rotation of the turntable 5. Therefore, when the disposer is activated and the kitchen waste, food waste, etc. rotates within the grinding chamber 2 due to the rotation of the turntable 5, they hit the slope of the inclined surface 2c and fall downward along the inclined surface 2c. The drain connection pipe 7 has its upstream end connected to the discharge outlet 1b of the disposer and its downstream end connected to an underfloor pipe leading to the sewer side.

[0011] The method of using the disposer of the first embodiment will be described below. When using a disposer configured as described above, first, kitchen waste, raw garbage, etc. are dumped through the dumping port 1a. Next, the cover member 1c is fitted onto the disposal opening 1a to close the disposal opening 1a, and then the disposer is operated. Kitchen waste, raw garbage, etc., thrown into the dumping port 1a are fed into the crushing chamber 2 from the feeding port 2a via the connecting pipe 6. When the disposer is operated from this state, the turntable 5 rotates, and the food waste, raw garbage, etc. is blown from the center of the grinding chamber 2 to the outer periphery (towards the inner surface of the grinding chamber 2) in a vortex-like motion due to the rotation of the turntable 5. As a result, the food waste, raw garbage, etc. sandwiched between the rotating blade 4 and the fixed blade 3 is ground up and crushed, and some of it is discharged downward through the slits and the gap between the turntable 5 and the fixed blade 3. The centrifugal force generated by the rotation of the turntable 5 presses the ground kitchen waste and food waste against the inner surface of the grinding chamber 2. At this time, the kitchen waste and food waste are moving due to the force of the turntable 5, so they move along the inner surface of the grinding chamber 2 in the direction of rotation of the turntable 5. Here, no matter where kitchen waste or food waste is located between the inlet 2a and the rotary blade 4 or the fixed blade 3, the inclined surfaces 2c are provided at all positions from the inlet 2a to the rotary blade 4 or the fixed blade 3, so that the kitchen waste or food waste always hits the inclined surfaces 2c, moves downward along the inclined surfaces 2c, and is guided to the position of the rotary blade 4 and the fixed blade 3 where it is crushed. In other words, even when the turntable 5 is rotated at high speed to increase the crushing efficiency of the rotary blade 4 and the fixed blade 3, the inclined surfaces 2c prevent the kitchen waste or food waste from bouncing off, and instead guide it to the rotary blade 4 and the fixed blade 3, so that the kitchen waste or food waste can be crushed efficiently overall. As mentioned above, the kitchen waste and raw garbage crushed here is discharged downward through the slits in the fixed blade 3 and the gap between the fixed blade 3 and the rotating plate 5. At this time, the operation of the disposer causes an appropriate amount of water to be supplied from the water supply section 8 into the crushing chamber 2, so that the crushed kitchen waste and food waste in the crushing chamber 2 are smoothly discharged to the discharge outlet 1b. In addition, in this embodiment, by making the inner surface of the crushing chamber 2 into an arc, it is possible to reduce adhesion of the rotary blade 4 and the fixed blade 3 to the inner surface of the crushing chamber 2. If a corner portion is provided where the top surface and the side surface intersect, when food waste or garbage adheres to this corner portion, it will adhere to two places, the top surface and the side surface, making it difficult to fall off, but by making the inner surface of the crushing chamber 2 into an arc shape, food waste will always adhere to only one place, which reduces the adhesion of food waste or garbage to the inner surface. Furthermore, in this embodiment, in plan view, the inclined surface 2c forms an odd-numbered rotationally symmetric shape, specifically a three-way rotationally symmetric shape, with the inlet 2a as the center, so that there is no inclined surface 2c at the opposite position to the inclined surface 2c based on the center of the grinding chamber 2, thereby making it possible to use a wider area inside the grinding chamber 2. If there is an inclined surface 2c at the opposite position, the inner diameter of the grinding chamber 2 will be narrowed by the protruding portion 2b of the inclined surface 2c, and large kitchen waste or food waste may become clogged, but in this embodiment, there is no inclined surface 2c at the opposite position to the inclined surface 2c, so it is possible to grind relatively large kitchen waste or food waste. After these processes, the crushed kitchen waste and food waste are discharged downward through the slits and the gap between the turntable 5 and the fixed blade 3, and are then discharged from the discharge outlet 1b through the drainage connection pipe 7 to the sewer.

[0012] The first embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment and can be freely modified within the scope that does not change the gist of the invention. For example, although the above embodiment has three inclined surfaces, it may have an odd number of inclined surfaces, for example, five. In the above embodiment, the disposer is enabled by closing the disposal port 1a with the cover member 1c when in operation, and the water supply unit 8 is provided in the grinding chamber 2 to supply water into the grinding chamber 2 when the disposer is in operation, improving the operation of the disposer. However, instead of the above method, the water supply unit 8 may be eliminated, and a strainer member or the like may be attached to the disposal port 1a instead of the cover member 1c. When using this strainer member, the disposer can be enabled by attaching the strainer member to the disposal port 1a, and when the disposer is in operation, water is discharged from the water supply faucet of the sink N into the sink S. As a result, when the disposer is in operation, water is supplied from the inlet 2a into the grinding chamber 2 via the disposal port 1a, the strainer member, and the connecting pipe 6, improving the operation of the disposer. [Explanation of symbols]

[0013] 1. Disposer body 1a Dumping port 1b Outlet 1c Lid member 2. Crushing chamber 2a Inlet 2b Protruding part 2c slope 3 Fixed blade 4 Rotary blades 5 Turntable 6 Connecting pipe 7 Drainage connection pipe 8 Water supply section C Cabinet N sink S Sync T Top plate

Claims

1. A dumping port for dumping kitchen waste, a crushing chamber below the dumping port that stores and crushes the kitchen waste dumped from the dumping port; A discharge port for discharging the food waste crushed in the crushing chamber downstream; A disposer for crushing and processing kitchen waste, comprising: The grinding chamber, A substantially cylindrical shape having an inlet at the upper end for injecting food waste from the dumping port into the crushing chamber; a fixed blade fixed along the periphery of the inner surface of the crushing chamber; A rotary blade is provided below the grinding chamber, rotates around the center axis of the grinding chamber in the grinding chamber, and cuts the food waste together with the fixed blade. A plurality of inclined surfaces are provided on the inner surface of the crushing chamber, starting from the inlet and continuing to a height position of the rotary blade or the fixed blade, the inclined surface is formed on the lower surface of a protruding portion formed on the inner surface of the crushing chamber, and is inclined downward along the rotation direction of the rotary blade, A disposer characterized in that the inner surface of the grinding chamber is configured with an arc from the inlet to the height position of the rotary blade or the fixed blade.

2. The disposer according to claim 1, characterized in that, in a plan view, the inclined surface forms an odd-numbered rotationally symmetric shape centered on the inlet.

Citation Information

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