JP2003246405A - Refuse volume reducing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a refuse volume reducing container compact by thinning the thickness of a bellows tank in a vertical direction when it is contracted and decreasing a dead space in the refuse volume reducing container. <P>SOLUTION: The refuse volume reducing container 2 comprises a refuse storage container 1, and a compressing mechanism for compressing refuse in the refuse storage container 1. The compressing mechanism is composed of the bellows tank 3 freely expanding/contracting like as an accordion, a compressing plate 4 moving by interlocking with expansion/contraction of the bellows tank 3 and compressing refuse in the refuse volume reducing container 2, and a pump 5 actuating the bellows tank 3. The bellows tank 3 is widen in diameter toward a bottom portion side of the refuse container. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste reduction container for reducing the volume of combustible waste made of papers, plastics, etc. generated at home or office.

[0002]

2. Description of the Related Art Looking at the breakdown of conventional household waste, except for recycled waste such as cans (aluminum cans, steel cans, general cans), bottles, PET bottles, milk packs, food trays, etc. Consists of garbage, paper, plastic for packaging or containers.

These waste treatment systems are systems in which a collection truck collects and incinerates or reclaims it intensively by transporting it to a predetermined waste collection place at a fixed time. Generally, garbage collection is done about twice a week in many areas, but households with a large number of four days generate nearly 70 liters of garbage, so it does not fit in the kitchen garbage container and is stored in outdoor pail containers, etc. I had to move.

As a garbage processor, a bio type or a dry type,
Or, the disposer type is becoming widespread and it is possible to reduce the volume, but these are garbage treatment machines and could not be used for reducing the volume of papers and plastics. In addition, as a dust reduction container with a compression function for reducing the volume of paper dust and the like, JP-A-8-11
Japanese Patent No. 9401 has been proposed. This product is equipped with a compression plate at the tip of a bellows-shaped bellows tank and supplies air to the bellows tank to pressurize the paper dust contained in the dust reduction container. Is compressed to reduce the volume.

However, in the above-mentioned conventional example, when the bellows-shaped bellows tank which is expandable and contractible expands and contracts easily in the lateral direction, if the diameter of the bellows-shaped bellows tank is increased, it is set in the dust container. The rubbish bag may be rubbed, and it may be caught or broken by the bellows tank that expands and contracts. Therefore, if you reduce the diameter of the bellows tank that expands and contracts, you can prevent the dust bag from rubbing when expanding and contracting, but if you reduce the diameter of the bellows tank, the pressing area of the compression plate provided at the tip (lower end) of the bellows tank will decrease. When compressed, the compression plate tends to wobble when compressing dust, and the compression plate cannot stably compress dust.

Further, in the above-mentioned conventional example, since the bellows tank has the same diameter of the mountain portion of the bellows tank in each part in the vertical direction, when the bellows tank is contracted, the thickness of the bellows tank in the vertical direction increases and dust is reduced. There is a problem that the dead space in the container increases.

Further, in the prior art, there is a problem that when the bellows tank is pressurized, if there is no restraint means, the expansion continues, the material expands and deforms, and eventually ruptures. Here, it is conceivable that a sufficient number of stages of the bellows tank are secured and there is a little margin in the extension direction by hitting the bottom of the dust container in a state where there is no dust,
This causes a problem that the vertical thickness of the bellows tank increases when the bellows tank is contracted, and the dead space in the dust reduction container increases.

When the compression plate compresses the dust, a reaction force is generated to increase the internal pressure, the peaks of the bellows tank start to swell, the diameter of the top of the peaks contracts, and a large number of vertical wrinkles occur. When vertical wrinkles are generated in this way, there is a problem in that when the bellows tank is repeatedly stretched and contracted, holes are formed in the wrinkles, air leaks, and a necessary compression force is insufficient.

Further, if the bellows tank is left in a contracted state, the bellows tank hangs downward, which causes a problem that it is difficult to put dust in the dust container.

In addition, a waste bag having an open upper end is put in the waste container, and the upper part of the waste bag is folded back from the upper opening of the waste container so as to be taken out to the outer surface side of the waste container. However, as shown in FIG. 20, when the bellows tank 3 is contracted and the compression plate 4 is lifted, the compression bag 4 slides up the dust bag 10 placed in the waste container 1 to damage the dust bag 10. Or waste container 1
There is a problem in that the dust bag 10 that has been lifted up may be caught by another object when the pulling out operation is performed.

When the dust bag 10 is stored in the dust container 1, the dust bag holder 1 is attached to the edge of the upper opening of the dust container 1.
1 is attached and the garbage bag 10 is held, but when the bellows tank 3 is extended and the garbage is compressed by the compression plate 4, there is no air escape place between the garbage bag 10 and the garbage container 1. As a result, the garbage bag 1 on top of the compression plate 4
0 is inflated inward as shown in FIG. 21, and when the compression plate 4 is pulled up, the dust bag 1
There is a problem that 0 is caught.

Further, a dust bag 10 having an open upper end is put in the dust container 1 and the dust bag 1 is opened from the upper opening of the dust container 1.
The interior of the dust bag 10 such that the upper part of 0 is folded back and put out on the outer surface side of the dust container 1 is shown in FIG.
If the depth of the dust bag 10 set in the dust container 1 is too deep as shown in (b), the dust bag 10 sags in the dust container 1 and loose dust is generated when the compression plate 4 moves up and down. There is a problem that the bag 10 is caught and the dust bag 10 comes off or is torn. Further, as shown in FIG. 22A, if the dust bag 10 is set in the dust container 1 at a shallow depth, the dust bag 10 may be broken when the dust is compressed.

Further, conventionally, since there is no means for detecting whether or not the dust container is arranged at the correct position on the main body,
If the dust container is not placed at the correct position on the main body, the upper end of the dust container may be compressed by the compression plate, and the compression mechanism may be destroyed.

Further, conventionally, when the compression plate on the lower surface of the bellows tank becomes dirty, the compression plate still attached to the lower surface of the bellows tank must be cleaned for cleaning, which is difficult to clean. There is a problem.

Further, in the conventional case, the compression plate has a larger size in plan view than the bellows tank, but there is a problem that dust is piled up on the outer end portion of the compression plate.

[0016]

The present invention has been made in view of the above points, and when the bellows tank expands or contracts, the bellows tank smoothly expands and contracts without rubbing the garbage bag set in the waste container. In addition to being able to press the compression plate stably, the vertical thickness when the bellows tank is contracted is thinned to reduce the dead space in the dust reduction container, and the dust reduction container can be made compact. Also,
Prevents the bellows tank from exploding when it is pressurized and stretched, preventing the bellows tank from rupturing, and preventing vertical wrinkles from bulging the bellows tank to an abnormal state. In addition, it is possible to prevent the bellows tank from dripping downward when the bellows tank is contracted so that the bellows tank does not get in the way when putting the dust into the waste container, and the dust that has been put into the waste container is not disturbed. The bag may slide up or get caught by the vertical movement of the compression plate,
It can be prevented from being torn, and it can be easily detected whether or not the waste container is placed in the correct position on the main body, and the air between the waste bag and the waste container can be easily configured. An object of the present invention is to provide a dust reduction container that can be released, can be easily cleaned, and can prevent dust from climbing over the outer end portion of the compression plate.

[0017]

In order to solve the above-mentioned problems, a waste reduction container according to the present invention is provided with a dust container 1 and a compression mechanism for compressing the dust in the dust container 1. 2, the compressing mechanism is a bellows-like expandable and contractible bellows tank 3, a compression plate 4 that moves in conjunction with the expansion and contraction of the bellows tank 3 to compress the waste in the waste container 1, and the bellows tank 3 And a pump 5 for operating the above, and the bellows tank 3 has a divergent shape whose diameter increases toward the bottom side of the waste container. With such a configuration, the bellows tank 3
When the bellows tank is expanded or contracted, the bellows tank 10 can be smoothly expanded and contracted without rubbing the dust bag 10 set in the waste container 1, and the compression plate 4 can be pressed stably, and the bellows tank 3 is contracted. Therefore, the tops of the mountain portions 7 adjacent to each other above and below the bellows tank 3 and the bottom portions of the valleys 19 do not vertically overlap, and the lower mountain portion 7 is located outside the top of the upper mountain portion 7 and the lower valley portion 19 is located. The bellows tank 3 can be contracted so as to be located outside the bottom of the upper valley portion 19, and the vertical thickness of the bellows tank 3 in the contracted state can be reduced.

Further, it is preferable to provide an expansion regulating means 6 in the expansion direction of the bellows tank 3 having a bellows shape. With such a configuration, it is possible to prevent the bellows tank 3 from excessively extending.

Further, it is preferable to provide the shrinkage restricting means 8 of the crest portion 7 of the bellows tank 3 on the inner surface of the crest portion 7. With such a configuration, when air is pressurized and supplied into the bellows tank 3 and the compression plate compresses dust, a reaction force is generated and the internal pressure rises, and the mountain portion 7 of the bellows tank 3 swells and the mountain It is possible to prevent the occurrence of a situation in which the diameter of the top of the portion contracts and a large number of wrinkles in the vertical direction occur.

Further, it is preferable to provide a contracted state holding means for holding the contracted state of the bellows tank 3. With such a configuration, and also when the bellows tank 3 is contracted, the contracted state holding means holds the contracted state, so that the bellows tank 3 interferes with the operation of storing the dust in the dust container 1. It does not happen.

Further, a dust bag 10 having an open upper end is put in the dust container 1 and the dust bag 1 is opened from the upper opening of the dust container 1.
The upper part of 0 is folded back and put out to the outer surface side of the waste container 1, and the dust bag holder 11 is attached to the edge portion of the upper opening of the waste container 1, and the waste bag holder 11 is provided with the dust bag 10 and the dust container 1 It is preferable to provide a hanging piece 12 that hangs along the inner surface of the upper part of the. With such a configuration, the hanging piece 12 can prevent the dust bag 10 from being slid up by the compression plate 4 when the compression plate 4 is pulled up.

Further, it is preferable to provide a positioning display portion 13 on the outer surface of the dust container 1 for positioning the dust bag 10. With such a configuration, when the dust bag 10 is set in the dust container 1, the setting depth of the dust bag 10 in the dust container 1 can be made constant.

Further, the dust container 1 is housed in the main body 20 equipped with a compression mechanism so that it can be pulled out freely, and a dust bag 10 having an open upper end is placed in the dust container 1 from the upper opening of the dust container 1. The upper part of the dust bag 10 is folded back and brought out to the outer surface side of the dust container 1, and the dust bag holder 11 is attached to the edge of the upper opening of the dust container 1, the dust bag holder 11 is provided with the magnetic body 14, and the main body 20 is provided. Magnetic body 1 with garbage container 1 set in
It is preferable to provide a reed switch 15 for detecting the state in which the dust container 1 is housed by operating in accordance with No. 4.
With such a configuration, when the dust container 1 is housed in the main body 20 and the dust container 1 is placed at an accurate position, the magnetic body 14 operates the reed switch 15 to operate the dust container. It can be seen that 1 was set correctly.

Further, it is preferable to form an air vent hole 16 in the dust container 1 for letting air between the dust bag and the dust container 1 escape. With such a configuration, when the bellows tank 3 is extended and the dust is compressed by the compression plate 4, the air between the dust bag 10 and the dust container 1 escapes from the air vent hole 16 and the compression plate 4 is compressed. The upper dust bag 10 does not swell inward.

It is preferable that the compression plate 4 is provided on the lower surface of the bellows tank 3 and the antifouling plate 17 is detachably attached to the compression plate 4. With such a configuration, the antifouling plate 17 can prevent the compression plate 4 from being soiled, and when the antifouling plate 17 is soiled, it can be removed from the compression plate 4 and cleaned.

A compression plate 4 having a size in plan view larger than that of the lower end of the bellows tank 3 is provided on the lower surface of the bellows tank 3, and the end of the compression plate 4 is inclined obliquely upward inward. It is preferable that the inclined piece 18 is provided so as to project and the lower end of the bellows tank 3 is located inside the inclined piece 18. With such a configuration, it is possible to prevent dust from rising on the outer end portion of the compression plate 4 by the inclined piece 18, and the inclined piece 18 is inclined obliquely inward and upward. The dust bag 10 can be prevented from being caught when the compression plate 4 is raised.

Further, the drawer body 23 on which the dust container 1 is mounted is attached to the main body 20 so that it can be freely taken in and out, and the lock pin 39 is attached to the main body 20 so as to be movable up and down.
Is provided with a spring 40 that applies a spring force that pulls down
The lock portion 39a of the lock pin 39 is fitted into the lock hole 41 provided in the drawer body 23 housed in the main body 20,
The lock pin 39 is provided with an operating portion 42 that is pushed upward by the compression plate 4 in a state where the bellows tank 3 is contracted, and the operating portion 42 is provided in the lock pin 39. Lock hole 4
It is preferable that it is configured so as to be pulled upward from 1. With such a configuration, the drawer body 23 is locked in a state where the drawer body 23 is housed in the main body 20 and the dust container 1 is properly housed, so that there is no fear that the drawer body 23 is accidentally drawn out during the compression operation. In addition, since the lock is released when the bellows tank 3 is contracted, the drawer body 23 can be drawn out without any trouble to store dust.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

The waste container 2 comprises a waste container 1 having an open top and a compression mechanism for compressing the waste (combustible waste such as paper or plastic) in the waste container 1. The compression mechanism is Bellows-shaped flexible bellows tank 3
And a compression plate 4 that moves in association with the expansion and contraction of the bellows tank 3 to compress the waste in the waste container 1, and the bellows tank 3
And a pump 5 for operating.

As shown in FIGS. 1 to 4, a drawer body 23 is housed in a dust container storage section 21 having a front opening provided in a main body 20 formed of a cabinet so that the drawer body 23 can be drawn out freely. The dust container 1 is stored and placed so that it can be taken out freely. A front plate 22 serving as a lid is provided upright at the front end of the drawer body 23, and the front opening of the dust container storage portion 21 is closed in a state where the drawer body 23 is pushed. Further, the drawer body 23 is slidable along rails 24 provided on both inner side surfaces inside the waste container storage portion 21.

In the waste container 1, as shown in FIG.
A plastic bag is set. That is, in a state where the drawer body 23 is pulled out, the dust bag 10 having an open upper end is put in the dust container 1 and the upper part of the dust bag 10 is folded back from the upper opening of the dust container 1 to form an outer surface of the dust container 1. The waste bag holder 11 is put out to the side, and the waste bag holder 11 is fitted and attached to the edge portion of the upper opening of the waste container 1 to attach and set the waste bag 10 to the waste container 1 by the waste bag holder 11. The dust bag retainer 11 has an annular shape and has a groove 11a that opens downward.
The waste bag 10 is fitted into the edge of the upper opening of the waste container 1 through the waste bag 10.
There is provided a hanging piece 12 that hangs along the inner surface of the upper part of the waste container 1 through 0, and when the compression plate 4 is moved upward as shown in FIG. The hanging piece 12 prevents it from being lifted up.

In setting the dust bag 10 on the outer surface of the waste container 1 as described above,
Positioning display section 13 for positioning the garbage bag 10
When the dust bag 10 is set as described above, by aligning the open end of the dust bag 10 with the positioning display portion 13 on the outer surface of the dust container 1, as shown in FIG. The set depth in the dust container 1 can always be a constant normal state.

The side wall of the dust container 1 has an air vent hole 1 for letting air between the dust bag 10 and the dust container 1 escape.
6, the air between the side wall of the dust container 1 and the dust bag 10 escapes from the air vent hole 16 when the compression plate 4 is lowered for compression as shown in FIG. ing.

Further, the dust bag holder 11 is provided with a magnetic body 14, and the dust container 1 is placed at a predetermined position of the drawer body 23.
With the drawer installed, the drawer body 23 is closed to close the dust container 1
Is stored in the proper storage position (that is, the garbage container 1
When the upper opening comes to a position that vertically opposes a compression plate 4 described later), the magnetic body 14 comes to a position to face the reed switch 15 provided at a predetermined position in the main body 20, and the magnetic body 14 opens the reed switch 15. Operate garbage container 1
It can detect that is set correctly. The pump 5 described below is operated only when the reed switch 15 is operated by the magnetic body 14 so that the bellows tank 3 can expand and contract. Therefore, the bellows tank 3 is erroneously extended and hits the dust container 1 without the dust container 1 being properly stored in the main body 20, and the expansion mechanism and the dust container 1 are not damaged.

A bellows tank storage portion 25 is provided in an upper portion of the waste container storage portion 21 of the main body 20, and the bellows-shaped telescopic bellows tank 3 is stored in the bellows tank storage portion 25 in a contracted state. You can do it. Bellows tank 3
Has an upper end portion attached to the ceiling portion 25a of the bellows tank storage portion 25, and has a bellows-like tubular shape in which the mountain portions 7 and the valley portions 19 are alternately continuous, and its shape is a truncated cone shape when viewed from the front. Are doing That is, the bellows tank 3 has a divergent shape such that the diameter becomes larger toward the bottom side of the waste container 1 (toward the extending direction of the bellows tank 3). That is,
As shown in FIG. 6A, the upper and lower crests 7 of the bellows-shaped bellows tank 3 are displaced from each other by a dimension M, and the upper and lower troughs 19 are laterally displaced from each other by a dimension M.

Since the bellows-shaped expandable bellows tank 3 has a shape that widens toward the extension direction as described above, the bellows tank 3 is expanded and contracted when the bellows tank 3 is expanded and contracted.
It is possible to expand and contract smoothly without rubbing the dust bag 10 set in the garbage container 1, and to secure a large pressing area of the bellows tank 3 that presses the compression plate 4 to stably press the compression plate 4. It is possible. Further, as shown in FIG. 6B, the tops of the mountain portions 7 adjacent to each other in the upper and lower sides of the bellows tank 3 and the bottom portions of the valley portions 19 in the state where the bellows tank 3 is contracted do not overlap with each other in the lower mountain. The bellows tank 3 can be contracted so that the part 7 is located outside the top of the upper mountain part 7 and the lower valley part 19 is located outside the bottom part of the upper valley part 19, and the bellows tank 3 in a contracted state. It is possible to reduce the vertical thickness of the main body 20.
Can be made compact.

Here, as shown in FIG. 8, the bellows tank 3
The contraction restricting means 8 of the mountain portion 7 may be provided on the inner surface of the mountain portion 7. In FIG. 8, a backup ring 4 having the same diameter as the inner surface of the top of each crest 7 is provided on the inner surface of each crest 7 of the bellows tank 3.
9 is fitted therein, and this backup ring 49 serves as the contraction restricting means 8 of the mountain portion 7. That is, when air is pressurized and supplied into the bellows tank 3 and the compression plate 4 compresses the dust, a reaction force is generated and the internal pressure rises, the peak portion 7 of the bellows tank 3 swells, and the diameter of the top portion of the peak portion increases. Although it contracts and many wrinkles in the vertical direction tend to occur, by providing the contraction restricting means 8 for the mountain portion 7 as described above, the mountain portion 7 of the bellows tank 3 swells and the diameter of the top portion of the mountain portion contracts. By doing so, it is possible to prevent the generation of wrinkles in the vertical direction. In this way, in the bellows tank 3 in which the backup ring 49 is fitted on the inner surface of the top of each mountain portion 7,
If the bellows-like expandable and contractible bellows tank 3 has a shape that widens toward the extension direction as described above,
Since the backup rings 49 on the top of the mountain portion 7 do not vertically overlap each other during contraction, there is an effect of further reducing the vertical thickness of the bellows tank 3 during contraction.

The bellows tank 3 which spreads in the direction of extension
A compression plate 4 as shown in FIG. 13 is attached to the lower end of the. The lower surface of the compression plate 4 is covered with an antifouling plate 17 as shown in FIG. 14, which is detachably attached by the attachment / detachment operation tool 32.

The antifouling plate 17 has a quadrangular shape in plan view, and a rising peripheral wall 33 is provided on the outer peripheral portion thereof. Ribs 34 are provided longitudinally and laterally in a portion surrounded by the rising peripheral wall 33 of the antifouling plate 17, and an end portion of the rib 34 on the rising peripheral wall 33 side is provided with an engaging concave portion 36 on an end portion of the rising peripheral wall 33 side. is there. Further, guide ribs 35 are provided diagonally on each inner corner of the antifouling plate 17.

On the other hand, the compression plate 4 has a quadrangular shape in a plan view, and is of a size to fit snugly into the rising peripheral wall 33 of the antifouling plate 17, and the four sides of the compression plate 4 are directed downward. There is a hanging piece 37,
The hanging pieces 37 are not provided at the respective corners of the compression plate 4 to form gaps 38.

Then, the antifouling plate 17 is pressed against the lower surface side of the compression plate 4 to cover the lower surface side of the compression plate 4 with the antifouling plate 17. In this case, the antifouling plate 17 is compressed as shown in FIG. Even when the antifouling plate 17 is displaced from the plate 4, the antifouling plate 17 is laterally displaced with respect to the compression plate 4, so that the gap 38 is formed so that the gap 38 is formed.
Each of the hanging pieces 37 of the compression plate 4 is engaged with the engaging concave portion 36 to be aligned. In this state, the antifouling plate 17 is detachably attached to the lower surface of the compression plate 4 by the attachment / detachment operation tool 32.

The compression plate 4 has a size in plan view larger than the lower end of the bellows tank 3 which is widened toward the end, and the ends of the compression plate 4 (in the embodiment shown in the accompanying drawings, the four corners of the compression plate 4). As shown in FIG. 19, an inclined piece 18 that inclines obliquely upward and inward is provided in the portion), and the lower end of the bellows tank 3 is located inside the inclined piece 18. The inclined piece 18 is for preventing dust from being mounted on the outer end portion of the compression plate 4, and since the inclined piece 18 is inclined obliquely upward and inward, the inclined piece 18 is provided. It is possible to drop dust along the path and prevent the dust bag 10 from being caught when the compression plate 4 is raised.

A lock pin 39 is attached to the main body 20 so as to be movable up and down, and the lock pin 39 is normally pulled down by a spring 40. As shown in FIG. 39a is a lock hole 4 provided in the front plate 22 of the drawer body 23 housed in the main body 20.
The drawer body 23 is fitted in 1 so that the drawer body 23 cannot be pulled out. The lock pin 39 is provided with an operating portion 42. When the bellows tank 3 is contracted, the operating portion 42 is pushed upward by the compression plate 4 as shown in FIG. 39a is pulled out upward from the lock hole 41 of the front plate 22 of the drawer body 23 so that the drawer body 23 can be pulled out.

A pump 5 (air pump) is provided in the main body 20, and the pump 5 and the bellows tank 3 are connected by a pipe 26. The pump 5 side of the pipe 26 is branched into two paths 26a and 26b as shown in FIGS. 5 and 7, and one path 26a is connected to the air discharge port 5a of the pump 5 and another path 26b. Is connected to the air intake port 5b of the pump 5. The two paths 26a and 26b are provided with switching valves 27a and 27b, each of which is a three-way valve, and operate the pump 5 to switch the switching valves 27a and 27b.
When 7b is switched to allow air to flow in the direction of arrow a in FIGS. 5 and 7, air is pressed into the bellows tank 3 to extend the bellows tank 3 (in this case, the outside air is sucked into the pump 5 side from the switching valve 27b). Switch valve 27
When a and 27b are switched so that the air flows in the direction of arrow b in FIGS. 5 and 7, the air in the bellows tank 3 is sucked and the bellows tank 3 is contracted (in this case, exhausted from the switching valve 27a). Has become. In the figure, reference numeral 28 is a control unit for performing switching control of the changeover valves 27a and 27b and operation control of the pump 5, and 29 is an operation / display unit provided with operation buttons, operation display lamps and the like.

A step portion is provided in the lower portion of the inside of the dust container 1 and constitutes an extension regulating means 6 for regulating the extension of the bellows tank 3 in the extension direction. That is, when the bellows tank 3 expands, the compression plate 4 (in the embodiment, the antifouling plate 17 attached to the compression plate 4) hits the step portion that is the expansion restricting means 6, and the bellows tank 3 does not expand any more, and the bellows tank is excessively expanded. The bellows tank 3 is prevented from being damaged by the expansion of the bellows 3.

A contracted state holding means for holding the contracted state of the bellows tank 3 when the bellows tank 3 is contracted is provided. That is, after the bellows tank 3 is sucked by the pump 5 and contracted, the switching valves 27a and 27b are both closed, so that the inside of the bellows tank 3 remains in a negative pressure state. The contracted state is retained. That is, in this embodiment, the pump 5 and the switching valves 27a, 27
The contracted state holding means is constituted by b and the like. here,
When the switching valves 27a and 27b are closed, some leakage may occur from the valve portion. In such a case, the bellows tank 3 hangs down and the dust container 1 is placed on the drawer body 23 and pulled out. This may hinder the withdrawal of the body 23. Therefore, in order to solve this, in this embodiment, even if the bellows tank 3 in the contracted state hangs down, the pump 5 automatically performs the suction operation again to shrink the bellows tank 3 and pull it upward. That is, the magnetic body 30 is provided on the upper surface of the compression plate 4, and the main body 20 is provided with the reed switch 31 which is operated by the magnetic body 30 in a state where the bellows tank 3 is contracted. Then, the reed switch 31 is turned on by the magnetic body 30 in a state where the bellows tank 3 is contracted. In this contracted state, some leakage occurs from the valve portion with the switching valves 27a and 27b closed, and the reed switch body is pulled out. When the bellows tank 3 hangs down to the extent that there is a hindrance to the loading and unloading of 23, the magnetic body 30 drops and the reed switch 31 turns off, the switching valves 27a and 27b are switched, and the pump 5 is operated to operate the air in the bellows tank 3. Suck up the bellows tank 3
May be controlled so that the switching valves 27a and 27b are closed again and the contracted state of the bellows tank 3 is maintained. Here, the switching valves 27a and 27b are switched at regular intervals according to the leakage of the switching valves 27a and 27b as described above, and the pump 5 is operated to contract the bellows tank 3, and then the switching valves 27a and 27b are restarted. 27b may be switched to be closed so that the bellows tank 3 is kept in a contracted state.

In the above example, the contracted state of the bellows tank 3 is held by holding the inside of the bellows tank 3 at a negative pressure, but the contracted state of the bellows tank 3 may be held by a magnet. Is. In this case, the magnet constitutes the contracted state holding means.

The main body 20 constituted by a cabinet is further provided with a small article storage drawer 45, a resource waste storage drawer 46, a food tray / milk pack storage drawer 47, and an empty can compressor 48.

Next, the use of the waste reduction container 2 having the above-mentioned structure will be described.

Drawer body 2 by pulling out drawer body 23
A combustible waste such as paper or plastic is put into the waste container 1 mounted on the container 3. Next, the drawer body 23 is pushed in. When the dust container 1 is pushed into the main body 20 and the predetermined position is reached in the main body 20, the magnetic body 14 provided in the dust bag holder 11 is reed switch 15 provided in the main body 20.
Is turned on, and it is detected that the waste container 1 is set correctly. In this state, the operation button provided on the operation / display unit 29 is operated to drive the compression mechanism. That is, the pump 5 is operated to switch the switching valves 27a and 27b to allow air to flow in the direction of arrow a in FIGS. 5 and 7 to press the air into the bellows tank 3 to extend the bellows tank 3 to expand the bellows tank. A compressing plate 4 provided at the lower end of 3 compresses combustible dust such as paper or plastic. When the compression plate 4 descends in this manner, the lock pin 3 by the compression plate 4
Since the push-up of the operation portion 42 of 9 is released, the lock pin 3
9 is lowered and the lock portion 39a is moved to the front plate 2 of the drawer body 23.
It is fitted in the second lock hole 41 so that the drawer 23 cannot be pulled out. In other words, it is possible to prevent the drawer body 23 from being accidentally pulled out and damage the compression mechanism when the bellows tank 3 is extended. After compression,
The switching valves 27a and 27b are switched to allow air to flow in the direction of arrow b in FIGS. 5 and 7 to suck the air in the bellows tank 3 to contract the bellows tank 3. In this case, the operation portion 42 of the lock pin 39 is pushed upward by the compression plate 4, the lock portion 39a of the lock pin 39 is pulled out upward from the lock hole 41 of the front plate 22 of the drawer body 23, and the drawer body 23 can be pulled out. It becomes a state.

A slight amount of dust is restored in the process of contracting the bellows tank 3, but the volume can be reduced by about 60% or more. For example, the dust container 1 of about 40 liters can store about 70 liters of dust. Possible, so for example 1
The garbage can be discharged twice a week only once, and it is not necessary to move the garbage to the outdoor trash can, which will reduce the labor required for garbage disposal.

In the present invention, the bellows-shaped expandable and contractible bellows tank 3 is formed in a divergent shape so that the tops of the ridges and the bottoms of the valleys do not overlap each other, and the thickness of the bellows tank 3 in the main contracted state is reduced. Although the main body 20 is made thin to be compact, the airbag 50 as shown in FIGS.
By using, the number of folded portions in the contracted state is smaller than that in the case where a large number of peaks and valleys are continuous, such as a bellows-shaped one, so that the thickness in the contracted state can be reduced.

The airbag 50 uses, for example, two sheets obtained by welding polyurethane and nylon fibers to each other, and has a quadrangular shape in plan view. As shown in FIGS. 23 and 24, an elastic frame 51 made of a spring wire is provided on the peripheral edge portion (four side portions in plan view) of the airbag 50 to which the sheet is welded (in FIG. 24, 60 is a welded portion). The elastic frame 51 made of this spring wire is used for the airbag 5.
When 0 is expanded, it expands in the vertical direction other than the peripheral edge portion which is the welded portion of the two sheets, and therefore the peripheral edge portion which is the welded portion 60 of the two sheets tries to shrink, which causes the elastic frame 51 made of the spring wire material. Is curved following the contraction of the peripheral portion of the airbag 50. Further, when the inside of the airbag 50 is decompressed, the airbag 50 contracts and the elastic frame 51 made of a spring wire material tries to elastically restore to the original state, whereby the peripheral portion of the airbag 50 is laterally pulled and the airbag 50 is pulled. Will contract in a plane.

Here, when a plurality of airbags 50 are used to obtain a compression stroke, an air passage may be provided at the joint between the airbags 50, or an air nozzle may be provided in the airbag 50 for each set. It may be provided and connected to a pipe connected to the pump 5. The lowermost airbag 50 has an attachment portion for the compression plate 4, and the compression plate 4 is attached. The other configuration except the airbag 50 is the same as that of the above-described embodiment, and thus the description thereof is omitted.

In this example, air is forced into the air bag 50 by the pump 5 to expand the air bag 50 and compress and reduce the volume of the waste in the waste container 1. When the air bag 50 is inflated, As described above, the welded peripheral portion of the airbag 50 contracts, and the elastic frame 51 bends following the contraction. After compression, the airbag 50 is decompressed to the standby state by depressurizing the airbag 50. At this time,
When the pressure is reduced without the elastic frame 51 at the peripheral portion of the airbag 50, the airbag 50 may contract in the vertical direction without contracting in a flat surface, and as a result, the airbag 50 does not fit in the predetermined bellows tank storage section 25. Although a problem occurs, the elastic restoring force of the elastic frame 51 provided on the peripheral portion of the airbag 50 as described above causes the airbag 50 to contract to a flat state without fail, so that the airbag 50 is not disturbed by dust. It can be done without any trouble.

A woven fabric cover 53 may be provided around the airbag 50 as shown in FIG. The cover 53 is composed of four sheets corresponding to each side of the airbag 50, and a peripheral portion (4 sides) of the airbag 50 to which the sheet is welded.
The upper end is fixed to the ceiling of the main body 20 and the lower end is fixed to the compression plate 4. The corner portion of the cover 53 may be joined, but may be open. In this case, since the airbag 50 is fixed at one point in the center, unstable movement tends to occur during the compression operation or the contraction operation when the dust is uneven.
By providing the cover 53 around the air bag 50, the movement of the airbag 50 is regulated, and stable expansion and contraction operations can be performed. Further, sharp dust such as bamboo skewers is prevented from directly touching the airbag. Is something that can be done.

In this embodiment, as shown in FIG. 26, a magnet 55 is provided on the main body 20 side, and the magnet 5 is attached to the compression plate 4.
5 is provided with a magnetic body 54 for magnetically attaching or the compression plate 4 is made of magnetic metal,
When 0 is contracted, the magnetic body 54 may be magnetically attached to the magnet 55 to maintain the contracted state of the airbag 50.
In this case, the compression plate 4 is provided with the magnet 55, and the main body 20
A magnetic body 54 may be provided to magnetize the magnet 55.

Further, as shown in FIG. 27, a link mechanism 57 having a tension coil spring or a torsion coil spring 56 may be provided on the outer peripheral portion of the airbag 50. Link mechanism 57
For example, the lower end of the upper link 57a is rotatably supported on the upper end of the lower link 57b. The upper end of the upper link 57a is rotatably attached to the ceiling of the main body 20, and the lower end of the lower link 57b is compressed. It is rotatably attached to the plate 4, and the upper link 57a and the lower link 57b are provided with a spring force in a direction in which they are approached by a tension coil spring or a torsion coil spring 56. As a result, when the airbag 50 is contracted, the link mechanism 47 is contracted to the initial flat state by the force of the spring force to return to the initial position by the spring force.
In addition, the contracted standby state can be maintained until the next time air is pressed into the airbag 50 and inflated.

[0059]

As described above, in the invention according to claim 1 of the present invention, there is provided a waste reduction container including a waste container and a compression mechanism for compressing the waste in the waste container, The compression mechanism is a bellows-like expandable bellows tank, a compression plate that moves in conjunction with the expansion and contraction of the bellows tank to compress the dust in the waste container, and a pump for operating the bellows tank. The bellows tank has a divergent shape that increases in diameter toward the bottom side of the waste container, so the bellows tank does not rub the waste bag set in the waste container when the bellows tank expands and contracts. It can be expanded and contracted smoothly without breaking and the compression plate can be pressed stably, and in the state where the bellows tank is contracted, the tops of the adjacent mountain parts above and below the bellows tank,
It is possible to shrink the bellows tank so that the bottoms of the valleys do not overlap vertically and the lower ridges are located outside the tops of the upper ridges and the lower valleys are located outside the bottoms of the upper valleys. In the contracted state, the bellows tank can be made thin in the vertical direction, and as a result, the apparatus can be made compact.

In addition, in addition to the effect of the invention described in claim 1, in the invention described in claim 2, since the expansion restricting means for the expansion direction of the bellows tank having a bellows shape is provided, the bellows tank is provided. The excessive expansion of the bellows is prevented and the bellows tank is not broken, and a stable expansion and contraction operation is obtained for a long period of time.

Further, in the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the shrinkage restricting means of the mountain portion of the bellows tank is provided on the inner surface of the mountain portion. Therefore, when air is pressurized and supplied into the bellows tank and the compression plate compresses dust, a reaction force is generated and the internal pressure rises, the ridge of the bellows tank swells, and the diameter of the top of the ridge contracts.
It is possible to prevent the occurrence of a large number of wrinkles in the vertical direction and to obtain a stable expansion / contraction operation for a long period of time.

According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, the contracted state holding for maintaining the contracted state of the bellows tank is held. Since the means is provided, the contracted state can be maintained by the contracted state holding means in the contracted state of the bellows tank, and the situation that the bellows tank becomes an obstacle when storing the dust in the waste container does not occur. It is a thing.

According to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, a waste bag having an open upper end is provided in the waste container. Insert it and fold back the upper part of the waste bag from the top opening of the waste container to expose it to the outer surface of the waste container.Attach the waste bag holder to the edge of the top opening of the waste container, and insert the waste bag into the waste bag holder. Since the hanging piece is provided along the upper inner surface of the waste container, the hanging piece prevents the dust bag from being slid up by the compression plate when the compression plate is pulled upward, and the garbage bag may be torn. Can be prevented.

According to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, in order to position the dust bag on the outer surface of the dust container. Since the positioning indicator of is provided, when setting the garbage bag in the garbage container, the setting depth of the garbage bag in the garbage container can be made constant, and the garbage bag can be torn by compression, The bag does not get into the upper side of the compression plate.

Further, in the invention described in claim 7, in addition to the effect of the invention described in any one of claims 1 to 6, the dust container is pulled out into the main body having the compression mechanism. Store it freely, put a waste bag with an open top in the waste container, fold the upper part of the waste bag from the top opening of the waste container, and put it out to the outer side of the waste container. A dust bag holder is attached to the edge, a magnetic body is provided on the dust bag holder, and a reed switch is installed to detect when the dust container is housed in the main body and is operated by the magnetic body. Therefore, when the waste container is stored in the main body and the waste container is placed at the correct position, the magnetic body operates the reed switch and the waste container is set correctly. It is possible to prevent compression and the like when the dust container is not properly set.

According to the invention of claim 8, in addition to the effect of the invention of any one of claims 1 to 7, the space between the waste bag and the waste container is provided in the waste container. Since the air vent hole for letting out the air of is formed, when the bellows tank is extended and the dust is compressed by the compression plate, the air between the dust bag and the dust container escapes from the air vent hole, and The upper dust bag does not swell inward,
This prevents the dust bag from breaking and allows the compression plate to move smoothly.

According to the invention of claim 9, in addition to the effect of the invention of any one of claims 1 to 8, a compression plate is provided on the lower surface of the bellows tank.
Since the antifouling plate is detachably attached to the compression plate, the antifouling plate prevents the compression plate from becoming dirty, and when the antifouling plate becomes dirty, it can be removed from the compression plate and cleaned. Can be done easily.

According to the invention of claim 10,
In addition to the effects of the invention described in any one of claims 1 to 9, a compression plate having a size in plan view larger than a lower end portion of the bellows tank is provided on a lower surface portion of the bellows tank. A slanting piece that inclines diagonally upward inward is provided at the end, and the lower end of the bellows tank is located inside the slanting piece, so dust will not be loaded on the outer end of the compression plate. Can be prevented by the inclined piece, and since the inclined piece is inclined obliquely upward and inward, the dust bag can be prevented from being caught when the compression plate is raised.

According to the invention of claim 11,
In addition to the effect of the invention according to any one of claims 1 to 10, a drawer on which a dust container is mounted is freely attached to and removed from the main body, and a lock pin is attached to the main body so as to be vertically movable. A spring that applies a spring force that pulls the lock pin down is installed, the lock part of the lock pin is fitted into the lock hole provided in the drawer stored in the main body, and the operation part provided on the lock pin is compressed with the bellows tank contracted. The lock pin is provided with an operating part that can be pushed up by the plate, and the lock part can be pulled out upward from the lock hole when the operating part is pushed up. It is locked when the container is correctly stored, and there is no risk of accidentally pulling out the drawer during compression operation.
Since the lock is released when the bellows tank is contracted, the drawer can be pulled out without difficulty to store dust.

[Brief description of drawings]

FIG. 1 is a side sectional view of a state in which a bellows tank of the present invention is contracted.

FIG. 2 is a side cross-sectional view of the bellows tank of the above in a stretched state.

FIG. 3 is an overall front view of the above.

FIG. 4 is an overall perspective view of the above.

FIG. 5 is an explanatory view of a mechanism for expanding and contracting the above bellows tank by a pump.

FIG. 6 (a) is an explanatory view showing that the peak positions and the trough positions are displaced from each other in the vertical direction by making the bellows tank of the above-mentioned divergent shape, and FIG. 6 (b) is a contracted state. FIG. 6 is an explanatory diagram for explaining that the crests of the crests and the crests of the troughs do not vertically overlap with each other.

FIG. 7 is an explanatory view showing an example in which an extension restricting means for the extension direction of the above bellows tank is provided.

FIG. 8 is an explanatory view showing an example in which a contraction restricting means for a mountain portion of the above bellows tank is provided on an inner surface of the mountain portion.

FIG. 9 is an enlarged cross-sectional view of a portion in which the above bellows tank is contracted and stored.

FIG. 10 (a) is a cross-sectional view showing a state where the lock pin is unlocked, and FIG. 10 (b) is a cross-sectional view showing a state where the lock pin is locked.

FIG. 11 is a cross-sectional view showing a state in which an antifouling plate is attached to the compression plate of the above.

FIG. 12 is a cross-sectional view showing a state where the antifouling plate is removed from the compression plate of the above.

13A is a cross-sectional view of a compression plate used in the above, and FIG. 13B is a bottom view.

FIG. 14 (a) is a sectional view of an antifouling plate used in the same, and FIG. 14 (b) is a plan view.

FIG. 15 is an explanatory diagram showing a case where the antifouling plate is displaced while the antifouling plate is being attached to the compression plate of the above.

FIG. 16 is a cross-sectional view showing an example in which a dust bag is set in a dust container provided with an air vent hole and a positioning display section, and a dust bag holder having a hanging piece is attached.

FIG. 17 is an explanatory view explaining that air between the dust bag and the dust container in the same goes out through the air vent hole.

FIG. 18 is an explanatory diagram showing a state where the hanging bag is prevented from sliding upward by the hanging piece.

FIG. 19 is an explanatory view showing an example in which the above compression plate is provided with an inclined piece.

FIG. 20 is an explanatory diagram for explaining that the dust bag contained in the dust container is lifted up by the compression plate to damage the dust bag.

FIG. 21 is an explanatory diagram illustrating that the dust bag is pushed inward above the compression plate by the air between the dust bag and the waste container by compressing with the compression plate.

22 (a) and 22 (b) are explanatory views for explaining the problems when the dust bag is not set in the dust container at a predetermined set depth.

FIG. 23 is an explanatory diagram showing an example of compression by an airbag.

FIG. 24 is a plan cross-sectional view of a portion where a spring elastic body is provided on each piece of the peripheral portion of the airbag.

FIG. 25 is an explanatory diagram showing an example in which a cover is provided on the outer peripheral portion of the airbag.

FIG. 26 is an explanatory diagram showing an example in which a magnetic body and a magnet of the same are provided.

FIG. 27 is an explanatory diagram showing an example in which a link mechanism is provided outside the airbag.

[Explanation of symbols]

1 garbage container 2 garbage reduction containers 3 bellows tank 4 compression plate 5 pumps 6 Extension control means 7 Yamabe 8 Shrinkage control means 9 Contraction state holding means 10 garbage bags 11 garbage bag holder 12 hanging pieces 13 Positioning display 14 Magnetic material 15 reed switch 16 Air vent hole 17 Antifouling plate 18 Inclined piece 19 Tanibe 20 body

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroyuki Omura             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Shigeyuki Yamaguchi             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Hideaki Yamada             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Yoshiro Matsushita             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company F term (reference) 3E023 AA20 BA03 HA05                 4D004 AA03 AA10 AA12 CA03 CB15

Claims (11)

[Claims] 1. A waste reduction container provided with a waste container and a compression mechanism for compressing the waste in the waste container, wherein the compression mechanism has a bellows-like retractable bellows tank, and the bellows tank expands and contracts. It consists of a compression plate that moves in tandem with and compresses the waste in the waste container, and a pump that operates the bellows tank, and the diameter increases as the bellows tank moves toward the bottom side of the waste container. A waste reduction container characterized by having a shape. 2. The waste reduction container according to claim 1, further comprising extension control means for extending the extension of the bellows-shaped bellows tank. 3. The waste reduction container according to claim 1 or 2, wherein contraction restricting means for the mountain portion of the bellows tank is provided on the inner surface of the mountain portion. 4. The waste reduction container according to claim 1, further comprising a contracted state holding means for holding the contracted state of the bellows tank. 5. A waste bag having an open upper end is put in the waste container, the upper part of the waste bag is folded back from the upper opening of the waste container to the outer surface side of the waste container, and the upper opening of the waste container is opened. 5. The garbage bag holder is attached to an edge portion, and the garbage bag holder is provided with a hanging piece that hangs along the upper inner surface of the garbage container via the garbage bag.
The waste reduction container described in any of 1. 6. The waste reduction container according to claim 1, further comprising a positioning display portion for positioning the dust bag on the outer surface of the waste container. 7. A waste container is housed in a main body equipped with a compression mechanism so that it can be pulled out freely, and a dust bag with an open upper end is placed in the waste container to open the upper part of the dust container from the upper opening. Fold it back and put it on the outer surface of the waste container, attach a dust bag holder to the edge of the upper opening of the dust container, and provide a magnetic body on the dust bag holder. Operate by the magnetic body when the dust container is housed in the main body 7. The waste reduction container according to claim 1, further comprising a reed switch for detecting a state where the waste container is set. 8. The waste according to claim 1, wherein the waste container is formed with an air vent hole for allowing air to escape between the waste bag and the waste container. Reduced container. 9. The refuse reduction container according to claim 1, wherein a compression plate is provided on the lower surface of the bellows tank, and an antifouling plate is detachably attached to the compression plate. . 10. A compression plate having a size in plan view larger than a lower end portion of the bellows tank is provided on a lower surface portion of the bellows tank, and an inclined piece inclined obliquely inward is projected at an end portion of the compression plate. The waste reduction container according to any one of claims 1 to 9, wherein the lower end portion of the bellows tank is located inside the inclined piece. 11. A drawer, on which a dust container is mounted, is attached to the main body so that it can be freely taken in and out, a lock pin is attached to the main body so as to be movable up and down, and a spring for applying a spring force for pulling the lock pin downward is provided. The lock pin is provided with an operating part that fits into the lock hole provided in the drawer housed in the main body and pushes the operating part provided on the lock pin upward by the compression plate when the bellows tank is contracted. The waste reduction container according to any one of claims 1 to 10, wherein the lock portion is configured to be pulled out upward from the lock hole in a state in which the lock is pushed upward.