JP2010234337A - Grinding treatment device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the sound pressure of the information sound from a sound source having a controller built therein in the grinding treatment device installed in a kitchen. <P>SOLUTION: A recessed part is provided to a controller body having the sound source built therein and the length of the recessed part is set to 1/4 the wavelength of the sound source to most efficiently raise the sound pressure. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a pulverization apparatus for garbage, etc., installed and used in a kitchen.

2. Description of the Related Art Conventionally, pulverization processing apparatuses such as garbage are provided with notification means for transmitting a sound to a user by generating a sound. The notification means notifies the user that the start switch operation has been accepted, the operation has started, an operation error has occurred due to an abnormality, or the like.
The conventional notification means is connected to and mounted on a device main body installed in a kitchen cabinet with an audio display configured by a speaker or the like (see, for example, Patent Document 1 and FIG. 5).
In such a case, there is a problem in that the notification sound is blocked by closing the door or drawer of the kitchen cabinet, and the audible sound is reduced. In addition, there is a problem that sound is blocked by a shielding sheet provided between the sound source and the outside air so that insects and moisture do not enter.

In addition, there are some in which the notification means is put out from the inside of the kitchen cabinet to the external space and is installed on the wall of the kitchen or the kitchen counter (for example, see Patent Document 1 and FIG. 1).
However, in this case, it is necessary to open the kitchen wall to install on the kitchen wall, draw a communication line inside the wall, or open the kitchen counter to install on the kitchen counter. There was a problem that required construction. Even in this case, there is a problem that the sound is blocked by the shielding sheet provided between the sound source and the outside air so that insects and moisture do not enter the notification means.
Furthermore, when the notification means is installed in the cabinet external space, there is a problem that the presence of the notification means and wiring deteriorates the workability when using the kitchen.

  For such a problem, there is an improvement example disclosed in Patent Document 2 regarding a structure for increasing the sound pressure of an electronic buzzer as a sound source of a notification sound.

However, the device of Patent Document 2 has a structure in which a tubular inner wall is provided so as to surround the buzzer inside the remote control body incorporating a buzzer as a sound source, and the sound emitted from the buzzer by the tubular inner wall. It simply prevents the vibration energy from diffusing and decaying into the remote control body and concentrating it on the sound hole on the front. A part of the controller is shaped like a cylinder and a sound source is placed at the bottom to prevent sound from radiating into the controller. In such a structure, the frequency of the sound source and the length of the tubular part There is a problem that the sound is attenuated due to the resonance node and has an adverse effect.

  In addition, there is a problem that sound is attenuated by providing a shielding sheet for the purpose of preventing insects and moisture.

JP 2007-160305 A JP 2000-224678 A

  An aspect of the present invention is made based on recognition of such a problem, and provides a pulverization processing apparatus capable of generating a notification sound having a sufficient sound pressure even when a sound source is installed inside a controller.

  According to one aspect of the present invention, a pulverizing unit that is disposed below a drain opening that is opened in a sink of a sink and that pulverizes the soot introduced from the drain port by a rotational drive, and the pulverizing unit is rotationally driven. A pulverization processing apparatus comprising: a driving means that controls the driving means; and a sound generation mechanism that is installed inside the controller and that emits a notification sound. And a sound generation mechanism installed in a position opposite to the bottom portion inside the controller case, and a sound hole is formed in the bottom portion, and the depth of the concave portion is The sound emitted by the sound generation mechanism is in a range from L / 4 to H / 4, where L is the wavelength at a temperature of 0 ° C. and H is the wavelength at a temperature of 40 ° C. And by the controller becomes possible sound amplification mechanism due to resonance effect in the temperature 40 ° C. Usually the temperature environment to be installed, i.e., the temperature 0 ° C..

According to the aspect of the present invention, there is provided a pulverization processing apparatus capable of generating a notification sound having a sufficient sound pressure even when a sound source is installed inside a controller.

It is sectional drawing which shows the state which installed the grinding | pulverization processing apparatus carrying the controller by one Embodiment of this invention in the sink. It is a perspective view which shows the grinding | pulverization processing apparatus carrying the controller by one Embodiment of this invention. It is YY sectional drawing of FIG. 1, and sectional drawing of a controller. It is an exploded sectional view of the controller. It is an expanded sectional view of the peripheral part of a crevice constituted in the upper case of the controller. Schematic diagram showing how to measure the sound pressure of the controller

According to a first aspect of the present invention, there is provided a pulverizing unit disposed below a drain opening opened in the sink of the sink, and pulverizing the soot introduced from the drain port by rotational driving, and a driving unit for rotationally driving the pulverizing unit. And a controller for controlling the driving means, and a sound generating mechanism that is installed inside the controller and that emits a notification sound, wherein the controller has a concave portion formed of a side surface portion and a bottom portion. And a sound generation mechanism installed inside the controller case at a position facing the bottom, and a sound hole is formed in the bottom, and the depth of the recess is determined by the sound generation The sound emitted by the mechanism is in the range from L / 4 to H / 4, where L is the wavelength at a temperature of 0 ° C. and H is the wavelength at a temperature of 40 ° C. That is a grinding apparatus.
According to this pulverizing apparatus, the depth of the recess is set to a quarter of the wavelength of the sound emitted by the sound generation mechanism in the temperature range of 0 ° C. to 40 ° C., so that the resonance function is maximized in daily use conditions. It becomes possible to make it a value. Although a large resonance effect can be obtained even at three-quarters and five-fourths of the wavelength of sound emitted by the sound source mechanism, it is not preferable in terms of efficiency because the depth of the concave portion becomes large and the device becomes large and attenuation occurs. .

A second invention is characterized in that, in the first invention, when the recess is cut along a plane parallel to the bottom portion, the cross-sectional area at the opening of the controller case is larger than the cross-sectional area at the bottom portion. It is a pulverization processing apparatus.
According to this pulverization apparatus, the directivity is relaxed and the direction in which sound is transmitted is widened by setting the shape of the recess to a shape with a small diameter on the sounding mechanism side and a large inner diameter on the opening side. Therefore, the notification sound can be evenly emitted to the entire space around the controller case regardless of the installation direction of the pulverizer.

A third invention is the pulverization apparatus according to the first or second invention, wherein an insect-proof or moisture-proof shielding sheet is attached to the sound hole.
According to this pulverizing apparatus, since the insect-proof or moisture-proof shielding sheet is attached to the sound hole formed on the outer side of the recess, that is, on the bottom instead of the front end of the opening, while maintaining the resonance effect formed by the recess It is possible to prevent insects and moisture from entering from the outside.
Equipment used around the kitchen sink has a high risk of board failure due to invading insects and moisture, so it is usual to provide a shielding mechanism to prevent insects and moisture from entering. It was a problem that the notification sound and the like were simultaneously shielded.
However, by attaching the shielding sheet to the sound hole at the bottom of the recess that exhibits the resonance effect by the method of the present invention, the outside can be shielded without impairing the resonance effect.

Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
First, a pulverization apparatus according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view schematically showing a pulverization apparatus according to an embodiment of the present invention installed in a sink, and FIG. 2 is an external perspective view of the pulverization apparatus 11 of FIG. An external view is shown.
3 is a YY sectional view of the controller 10 shown in FIG. 2, and FIG. 4 is an exploded view thereof. FIG. 5 is an enlarged cross-sectional view of the periphery of the recess 9 formed in the upper case 1 in FIGS. 1 to 4.

According to FIG. 1, the pulverizing apparatus 11 according to an embodiment of the present invention includes a pulverizing unit 40, a driving unit 50, and a controller 10 having a recess 9, and is installed in a cabinet 25 below the drain port 30 of the sink 24. Used in a sealed state by the cabinet lid 26.

FIG. 2 shows one embodiment of the present invention, and is an external view of the pulverization processing apparatus 11 comprising the controller 10, the pulverizing means 40, and the driving means 50. According to the present embodiment, the controller 10 is further formed by an upper case 1 having a side part 7 and a bottom part 8 at the substantially center and having a recess 9 having a sound hole 6 in the bottom part 8, and a lower case 2. ing.

3 and 4, the controller 10 includes a side surface portion 7 and a bottom portion 8 at substantially the center, a sound hole 6 is provided in the bottom portion 8, and a depth Z in which a shielding sheet 17 is attached to the sound hole 6. A controller case 3 composed of an upper case 1 having an inner wall 15 provided on the lower side of the bottom 8 and a lower case 2, and a mounted electronic component 20 inside the controller case 3. And a printed circuit board 14 mounted with the sound source mechanism 5 at a position facing the sound hole 6 inside the inner wall.

FIG. 5 shows an enlarged cross section around the recess 9 having a depth Z formed in the upper case 1 in FIGS. 1 to 4. The recess 9 is formed in a substantially cylindrical shape by the side surface portion 7 and the bottom surface portion 8. In the vicinity of the shoulder of the side surface portion 7, that is, the inner diameter dimension of the opening 60 of the concave portion is the opening inner diameter Do, the inner diameter dimension located in the vicinity of the bottom portion 8 is the bottom inner diameter Di, and Do> Di It is formed to become a relationship. A sound hole 6 is opened near the center of the bottom 8, and a shielding sheet 17 for blocking insects and moisture from the outside from the inner surface of the upper case to the bottom 8 so as to cover the sound hole 6. It is pasted. Furthermore, a wall surface 15 for sticking the shielding sheet and positioning the sound source mechanism 5 protrudes below the bottom 8.

Here, the depth Z of the recess 9 is about a depth corresponding to a quarter of the wavelength of the sound frequency generated by the sound source mechanism 5, and the ambient temperature is 25 ° C. when the frequency used for the notification sound is 2 kHz. In this case, the depth Z is about 43 mm.

Next, the operation and action will be described.
1 is operated by operating a switch (not shown) that activates the crushing device 11 installed in the lower portion of the drain port 30 so that the crushing device 11 is turned on. A signal is sent from the controller 10 to the driving means 50 to drive the crushing means 40, and the crushing operation is performed. In addition, the controller 10 notifies the user that the sound source mechanism 5 has received a switch operation to be activated at the time of activation, notifies the user that the operation has started, or reports an operation error due to an abnormality, and further starts activation. The driving situation is notified from the time point through the end point of driving.

In consideration of the fact that the pulverization processing apparatus 11 is housed in a cabinet 25 under the sink 24 and the cabinet 25 is a space sealed by a cabinet door 26, these notification sounds are preferably as large as possible. In this embodiment, the controller 10 is installed so as to face the sink front side, and a recess 9 is formed in the substantially central portion of the upper case 1, and a sound hole 6 is opened in the bottom 8 of the recess 9, The sound source mechanism 5 mounted on the printed circuit board 14 is arranged close to the sound hole 6.
When the sound source mechanism 5 generates a notification sound, the sound that has entered the recess 9 through the sound hole 6 is amplified by the depth Z, and the notification sound emitted outside from the front of the remote control becomes larger. In general, there is a sound amplification mechanism such as a resonance box or a resonance cylinder as a method of increasing a specific sound by forming such a space. In the present invention, the resonance point based on the wavelength of the generated sound is set to a depth. The sound is amplified by fixing it as Z and forming a recess 9 as a resonance space. At a position where the depth Z deviates from a quarter of the wavelength, the sound diffuses to the surroundings and attenuates. It only suppresses the amplification effect.

As described above, the concave portion 9 formed by the bottom portion 8 and the side surface portion 7 formed with the sound hole 6 in opposition to the sound source mechanism 5 is configured in the controller 10 with a depth Z equal to one-fourth of the wavelength emitted by the sound source. In addition, it is possible to effectively amplify the vibration energy of the sound generated inside the controller 10 by the resonance action of the recess 9, and the pulverization processing apparatus that produces a large notification sound even when used in a closed space such as in the sink cabinet 25 of the kitchen. 11 can be provided.

FIG. 6 shows a measurement state when the sound pressure of the notification sound emitted to the outside of the controller 10 in the present invention is measured. The measurement is performed in an anechoic room free from external noise and reverberation, keeping the room temperature at 20 ° C., and the controller 10 is fixed to the installation base 28 at a height of 1 m from the floor 29 to collect sound for sound pressure measurement. The microphone 27 was measured at the same height at a distance of 1 m from the controller 10.
Further, the sound collecting microphone 27 was moved in a semicircular shape with a radius of 1 m around the controller 10 and the orientation of the notification sound emitted from the controller 10 was observed.
In the figure, A ← → A and B ← → B schematically show an angle range in which the notification sound is within about 5 dB with respect to the observation value in front of the controller.

For example, in a structure that does not consider the depth Z, a sound pressure of about 70 dB is obtained in a frequency range of about 2 kHz, but in a structure that takes the depth Z into consideration, a sound pressure of about 80 dB is obtained, and an amplification of about 10 dB is obtained. The effect was obtained.

Further, in the controller 10 constituting the recess 9 having the depth Z, in the structure in which the bottom inner diameter Di and the opening inner diameter Do are further taken into consideration, the directionality of the sound emitted from the controller 10 has a wide angle range (A ← in the figure). → A range), and the reduction from the center line to about 60 degrees on the left and right is about 3 dB, whereas in the case of the same diameter, about 15 degrees on the left and right with respect to the center line (B ← → B in the figure) The sound pressure observed on the wide angle side exceeding) tended to decrease by 5 dB to 10 dB.

Furthermore, when the shielding sheet is provided in the sound emitting portion, it is predicted that sound energy is attenuated to some extent. However, when the shielding sheet 17 is installed in the sound hole 6 and the recess 9 is provided. As compared with the case of covering from the outside, in the method of installing in the sound hole 6, the attenuation rate of the amplification effect can be reduced to about 0 to 2 dB, whereas the shielding sheet 17 is installed so as to cover the recess 9 from the outside. In this case, it was found that the amplification effect was attenuated by 3 to 6 dB. Furthermore, the damping ratio can be minimized by the structure in which the bottom inner diameter Di and the opening inner diameter Do are taken into consideration, compared to the case where the diameter of the concave portion 9 is the same for the bottom portion 8 and the side surface portion 7.
Although the details of this mechanism are unknown, it is because the sound amplification action is not formed in the vicinity of the sound source but is formed by the recess 9 having the depth Z, and the depth Z is about one-fourth of the wavelength. It seems to be deeply related.

As mentioned above, although preferred embodiment of this invention was described, it cannot be overemphasized that a various change can be added to embodiment mentioned above.
For example, in this embodiment, a circular shape is shown as the cross-sectional shape of the recess, but the present invention is not limited to this, and various shapes such as a rectangular shape can be adopted.

DESCRIPTION OF SYMBOLS 1 ... Upper case 2 ... Lower case 3 ... Controller case 5 ... Sound generating mechanism 6 ... Sound hole 7 ... Side surface part 8 ... Bottom part 9 ... Recessed part 10 ... Controller 11 ... Grinding processing device 14 ... Printed circuit board 15 ... Inner wall 17 ... Shielding sheet 20 ... Mounted electronic component 24 ... Sink 25 ... Cabinet 26 ... Cabinet door 27 ... Sound collecting microphone 28 ... Installation table 29 ... Floor surface 30 ... Drain port 40 ... Crushing means 50 ... Drive means 60 ... Opening portion Do ... Opening portion inner diameter Di ... Bottom inner diameter Z ... Depth

Claims (3)

A crushing means disposed below a drain outlet opened in the sink of the sink, and crushing the culm thrown from the drain outlet by rotational driving;
Drive means for rotationally driving the grinding means;
A controller for controlling the driving means;
A sound generation mechanism that is installed inside the controller and emits a notification sound;
A pulverizing apparatus comprising:
The controller is
A controller case having a recess composed of a side part and a bottom part;
A sound generation mechanism installed inside the controller case at a position facing the bottom,
Consists of
A sound hole is formed in the bottom,
The depth of the recess is
When the wavelength at a temperature of 0 ° C. is L and the wavelength at a temperature of 40 ° C. is H of the sound generated by the sound generation mechanism,
From L / 4,
A pulverizing apparatus characterized by being in a range up to H / 4 In the case of cutting the recess in a plane parallel to the bottom,
2. The pulverization apparatus according to claim 1, wherein a cross-sectional area at the opening of the controller case is larger than a cross-sectional area at the bottom. The pulverization apparatus according to claim 1 or 2, wherein a shielding sheet for insectproof or moistureproof is attached to the sound hole.

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