JP2003038969A - Document shredder with destaticizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document shredder provided with a function to efficiently destaticize the static electricity of shreds and shredding scrap produced in shredding. SOLUTION: A destaticizer consisting of an ion generator and an air blowoff device 6 is disposed in the intermediate section position of a shredding section 5 of the document shredder with the destaticizer and a shredding scrap housing box 3. An area A where the electrified shredding scraps fall and pass and the inside of the shredding scrap housing box B below the same are irradiated with the ions generated by the ion generator together with the air blown off from the air blowoff device 6 and the charges of the shredding scraps, shredding scrap bags and shredding scrap housing box are neutralized and removed by the Coulomb force thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to papers that are no longer needed,
The present invention relates to a document shredder equipped with a function of efficiently removing static electricity from shredded scraps generated when shredding a document shredder that shreds plastic films, aluminum foils, and the like.

[0002]

2. Description of the Related Art Document shredder for shredding unnecessary sheets of paper, plastic films, aluminum foils, etc., due to charging due to friction or deformation caused by shredding by a cutter at the shredding part. Static electricity is generated in the shredded scraps, and the shredded scraps are often attached to the periphery of the shredded scraps or attached to the shredded scraps bag or the shredded scraps storage box to cause inconveniences in collecting and removing the shredded scraps. In order to eliminate the harmful effects of static electricity in such a document shredder, Japanese Utility Model Publication No. 1-43177 and Patent Registration No. 2662606 have been published.
The former invention disclosed in Japanese Utility Model Publication No. 1-43177 discloses a shredder that detects a full sheet with an electric sensor, in which an antistatic film is formed on the surfaces of the issuing unit and the light receiving unit. In the invention described in Registration No. 2662606, a blower for blowing air toward a shredded portion by a cutter is arranged in the shredder body, and a plus / minus discharge needle is arranged to face the blowout portion of the blower. It is a shredder characterized by that. In the former invention, the adhesion preventing place is limited to the surface of the light emitting portion and the light receiving portion of the full paper sensor, and the preventing means is also formed with an antistatic film. In addition, the latter eliminates the drawbacks of such a device, efficiently eliminates static electricity over a wide range of the shredded part and its peripheral part by the cutter, and can properly prevent the harmful effects of charged paper powder and shredded debris. It was done.

[0003]

DISCLOSURE OF THE INVENTION The inventor of the present invention can effectively prevent the harmful effects of charged paper dust or shredded dust by eliminating the static electricity of shredded dust generated when the document shredder is shredded. Therefore, the above-mentioned prior art was examined in detail. As a result, the above-mentioned invention is a passive technique in which the target of static elimination is specified to the photoelectric section as described above, and the electrostatic charge is prevented. Therefore, it cannot be a means for solving the problems to be solved by the present invention, and the technical gist is basically different.

On the other hand, in the latter patented No. 2662606 invention, the harmful effects caused by the electrification of paper powder and shredded scraps in the shredder are attached to the cutter and its peripheral portion to deteriorate shredding performance and various sensors. It mainly adheres to the container and interferes with its detection, and is premised on the recognition that it adheres to the collection container as a secondary product. For this reason, positive and negative ions are blown toward the cutting part by the cutter along with the air blow by the blower, and the cutter and its peripheral part and the paper dust and cutting waste there are discharged. Has become. In this way, by removing the electric charge of the paper dust and the cutting waste at the source of the static electricity, the effect of preventing the dust from adhering to the collection container is achieved. The technical idea of the present invention seems to be rational in that it aims to remove electricity by irradiating ions toward the cutter, which is the source of triboelectric charging, and its peripheral portion.
However, when actually tested, the harmful effects of the static electricity of the shredder have not been resolved, and the condition is not satisfactory.

As described above, the inventor of the present invention has found that the problem of static electricity of the document shredder has not been substantially eliminated by the above-mentioned conventional technique, and has motivated the development of the present invention. Therefore, in the development, first, the adverse effects of static electricity of the document shredder were observed and examined in detail. As a result, it is sure that the paper and the films are rubbed and deformed when the cutter is used to perform the cutting operation, and thus the paper is charged, and the paper dust and the shreds are statically charged. However, the cutter of the document shredder is usually manufactured using a material that is difficult to be charged, and the paper is forcibly discharged with a strong force during operation, so paper dust and repulsive force generated by static electricity The shredded dust hardly adheres to the cutter part or its periphery. Therefore, under the present circumstances, the problem that paper dust or cutting waste adheres to the cutter and its periphery and deteriorates the cutting performance is not actually a problem.

[0006] Therefore, when the paper dust or shredded dust that is triboelectrically charged at the time of cutting is discharged from the cutter and naturally falls due to the attractive force, it becomes a small light fragment, and it becomes free and falls naturally. Therefore, even a weak static electricity has a great influence on the dropping operation and causes an unexpected irregular movement, which becomes a harmful effect on static electricity. In other words, the functions of dropping, collecting, storing, removing paper dust and shredded waste and resetting empty storage containers in the document shredder for general office use are
It is not done by compulsory means or equipment, but most are by the free fall method. In particular, the dropping motion of the shredded scraps is performed by arranging the shredded scrap bag and the storage container at predetermined positions designed on the assumption of a natural dropping action and a natural stacking action depending on the weight (gravitational force), By its natural fall and accumulation action, it is automatically stored in the shredded dust bag and the storage container. When this stored and accumulated shredded dust accumulates,
A method is adopted in which the bag is manually collected and removed, the shredded waste bag is disposed of, and a new bag is attached to the storage container and the bag is reinstalled at a predetermined position.

For this reason, if the falling paper dust or shredded dust is electrified and static electricity is still generated, and if the paper dust or shredded dust is attempted to drop or accumulate, the paper dust or shredded dust is inadvertently floated up by the static electricity. Or, it moves irregularly and falls, does not drop / accumulate in a predetermined position as planned, is stuck to the outside of the shredded scrap bag or storage container, is scattered, and carelessly shredded scrap bag It causes harmful phenomena such as adhesion to the container or the container and its surroundings. Thus, the performance not being as designed by the designer is inconvenient and harmful in the collection and disposal work, and causes the performance of the document shredder to be evaluated low. Therefore, when observing the falling state of shredded chips, it is difficult to completely eliminate static electricity even if a small amount of ions are radiated toward the shredded portions where static electricity is generated one after another and static electricity is generated. After being dropped, a large number of shredded scraps are triboelectrically charged with each other even during dropping and accumulation, which also generates static electricity, and the shredded scraps are shredded in shredded bags and shreds even during falling movement and stacking operation. It is frictionally charged with the waste container to generate static electricity. As a result, paper dust and shredded dust that becomes free and falls and accumulates generates static electricity during dropping and accumulation, causing various harmful phenomena in the shredded dust storage container and its surroundings. Moreover, since the material forming the shredded waste bag or shredded waste storage container is often made of paper or synthetic resin film that is easily charged with electricity, the shredded waste bag or shredded waste storage container or It is easy to generate static electricity even in the peripheral part due to frictional electrification with shredded dust. In other words, the dust rises due to the generation of static electricity on paper dust and shreds, careless dispersion, spillage from the shredded waste container, irregular adhesion to shredded waste bags and shredded waste storage boxes, and the surrounding area. Adverse effects such as sticking to the box-shaped body and sticking to the hands and body when the worker tries to remove it are mainly caused by the shredded waste bag, shredded waste storage box and its surrounding area during falling and accumulation. It's happening.

As described above, the substantial adverse effect of the static electricity of shredded scraps in the document shredder is that the shredded scraps are falling and shredded bags or shredded pieces are not in the shredded parts such as the cutter and its periphery. We found and confirmed what was happening in the scrap storage box and its surrounding area. Accordingly, the present inventor irradiates the ions for static elimination toward the shredded scrap bag, the shredded scrap storage box, and the peripheral portion thereof while the shredded scraps are falling, so that the static charge can be removed more accurately and more efficiently. However, we decided to develop a document shredder with a static eliminator for the purpose of eliminating the actual harmful effects of static electricity from shredded waste.

[0009]

A first aspect of the present invention, which seeks to obtain a patent, provides a shredder portion at an upper position of a box-shaped main body, and accommodates shredded debris below the shredded portion in the box-shaped main body. Arrange the box,
In a document shredder in which shredded material cut in the shredder falls and is stored in the shredded waste storage box, ions are generated at an intermediate position between the shredded area and shredded waste storage box. A static eliminator consisting of a device and an air blower is provided, and the ions generated by the ion generator are blown out from the air blower,
Irradiation is applied to the falling passage area of falling charged shredded scraps and the inside of the shredded scrap storage box, and the clone power neutralizes and neutralizes the shredded scraps, shredded scrap bags, and shredded scrap storage boxes. A document shredder with a static eliminator characterized by doing so.

According to the first aspect of the present invention, as a result of examining the site where the electrostatic damage peculiar to the document shredding machine is caused by actual observation, the falling passage area of the charged shreds and the inside of the shredded scrap storage box are obstructed. This is a basic invention in which a target portion is found and neutralized and neutralized in a concentrated and efficient manner. The conventional technical idea for neutralizing and removing the charge generation source cutter and its surroundings is basically different.

A second invention, which is going to receive a patent, is to provide a shredded portion at an upper position of the box-shaped main body, and dispose a shredded waste storage box below the shredded portion in the box-shaped main body. In a document shredder in which shredded scraps cut by the shredder drop and are stored in a shredded scrap storage box, an ion is placed at an intermediate position between the shredded part and the shredded waste storage box. A static eliminator including a generator and an air blower is provided. The static eliminator is provided with a power supply / controller unit at the base of a long rod-shaped electrode housing, and the needle electrodes are arranged in the long rod-shaped electrode housing at predetermined intervals along the lengthwise direction. Then, the power supply / controller unit of the base and the electrode needle are connected by a high voltage cord, and an ion generator configured to generate ions from the electrode needle and a base of the elongated rod-shaped electrode housing A blower is provided, and an air duct that can blow air along the lengthwise direction of the elongated rod-shaped electrode housing is provided, and an outlet is provided around the electrode needle to connect the blower and the air duct at the base. And an air blower configured to blow air from around the electrode needle, and the ions generated from the electrode needle of the ion generator are charged together with the air blown from the outlet of the air blower. Irradiate the falling passage area of shredded chips and the inside of the shredded chip storage box, and neutralize the charge of the shredded chips, shredded scrap bag, and shredded scrap storage box by its clone power. A document shredder with a static eliminator characterized by doing so.

A second invention is the static eliminator according to the basic invention,
The long rod-shaped electrode housing is equipped with an ion generator and an air blower to irradiate ions into the falling passage area of the shredded debris, which is charged with the air, and into the shredded debris storage box below. , A document shredder with a static eliminator characterized by neutralizing the electric charges of shredded scraps, shredded scrap bags, and shredded scrap storage boxes by its clone power. A long rod-shaped static eliminator that generates a lot of curtain-like ions from the electrode needles that are lined up, and they are carried to a distance by the air blown from the periphery of each electrode needle, and are shredded. Irradiation is directed toward the drop passage area and the shredded scrap storage box below, so static electricity can be removed even from moving paper dust and shredded scrap, and the faulty area can be completely covered. It is characterized in that it can eliminate static electricity in a wide space. Further, since the static eliminator according to the present invention is a slim and long rod-shaped static eliminator, the layout can be freely arranged, and if it is arranged three-dimensionally, the entire space or a specific spot can be efficiently neutralized in three dimensions.

According to a third aspect of the present invention, which is to receive a patent, the ion generation method of the ion generator is either a method of corona discharge with a DC voltage, a method of corona discharge with an AC voltage, or a method of corona discharge with a pulse DC voltage. The document shredding machine with a static eliminator described in the first invention or the second invention is characterized in that it may be of a system.

The method of corona discharge with the DC voltage is a method of having positive and negative individual electrodes and applying positive and negative electrodes to generate positive and negative ions at the same time. The method of corona discharge with an AC voltage has good ion balance because positive ions and negative ions are alternately generated from one electrode. The method of corona discharge by pulsed DC voltage has positive and negative individual electrodes, and DC high voltage is alternately applied to each electrode by pulse. The applied voltage can be positive or negative in both voltage and time. This is a method that has little distance dependence and allows ion showering to a large area with few electrodes even without laminar air flow.

According to a fourth aspect of the present invention, which is intended to receive a patent, a shredder portion is provided at an upper position of the box-shaped body, and a shredded waste storage box is arranged below the shredded portion in the box-shaped body. In a document shredder in which shredded scraps cut by the shredder are dropped and stored in a shredded scrap storage box, a power supply A static eliminator comprising a base unit house having a controller installed therein and a tip unit house having an ion generator and an air blower installed therein is provided. The tip unit house is provided with a blower port on its inner wall and an intake port on the outer wall to take in air from the outside. Inside the tip unit house, a positive electrode is provided near the blower port. A plurality of needles and negative electrode needles are arranged on opposite sides of the grounding plate so that they face each other, and a fan and a drive motor are arranged near the intake port on the rear side of the ion generator. It is equipped with an air blower consisting of an air blower, and by operating the ion generator to generate DC corona discharge, positive and negative ions are generated from the positive and negative electrode needles, and the fan of the air blower is operated. By operating it, the air taken in from the air inlet of the front end unit house is made to blow out from the air outlet, and along with the air blown out from this air outlet. Irradiate the falling passage area of shredded debris charged with lath ions and negative ions and the shredded chip storage box below, and the shredded debris, shredded debris bag, and shredded debris charged by the clone power A document shredder equipped with a static eliminator, which is characterized in that the charge in the housing box is neutralized to eliminate the static electricity.

The fourth aspect of the invention is a method of corona discharge with a DC voltage. The feature is that in the unit house, a plurality of positive electrode needles and negative electrode needles are arranged in the vicinity of the air outlet so as to face each other via a ground plate, and an ion generator. The point is that an air blower having a fan and a drive motor is installed on the rear side. Since the ground plate is interposed in this way, the positive electrode needle and the negative electrode needle can be arranged in a small number in a large number of rows,
Still, since the positive electrode needle and the negative electrode needle can be distinguished from each other, the generated positive ions and negative ions are not mixed carelessly, the ions are recombined, and the static elimination effect is not weakened by the offset. That is, the size and weight of the corona discharge can be stabilized and a large amount of positive ions and negative ions can be generated, and the reduction due to recombination of ions can be minimized. Further, since an air blower provided with a fan and a drive motor is provided immediately behind the ion generator, it is possible to create a flow of air blown out, and generate positive and negative ions. , Can be efficiently sent to a long distance to eliminate static electricity. As a result, the effective static elimination range can be widened.

A fifth aspect of the present invention, which is intended to receive a patent, is that the base unit house of the fourth aspect of the invention and the tip end unit house are formed in a cylindrical shape, and one of them is rotatably fitted to the other end. The orientation of the unit house can be adjusted by changing it in the direction of rotation, and if necessary, it can be expanded and contracted in the fitting direction so that the direction of air and ions blown out from the air outlet of the tip unit house According to a fourth aspect of the invention, the document shredder with a static eliminator is characterized in that the position of the static eliminator can be variably adjusted by changing the position.

A sixth aspect of the present invention, which is intended to receive a patent, is characterized in that a looper is provided at the blower opening to change the wind direction of the air blown from the blower opening so that the static elimination effect region can be variably adjusted. 4 A document shredder with a static eliminator described in the invention.

In the fifth and sixth inventions, the blowing direction of the ions and the air and the direction of the wind can be changed, and can be freely changed, such as by expanding and contracting, from a small document shredder to a large document shredder. It is designed to be widely installed.

In the seventh invention to be patented, a high-voltage power switch for the static eliminator and a switch for the air blower are provided separately, and the high-voltage power is supplied after the switch of the air blower is turned on to start the air blowing. The first feature is that the power switch is turned on so as to generate ions, and at the time of stop, the high voltage power switch is turned off so that the ions are extinguished and then the blowing of air is stopped. It is a document shredder with a static eliminator described in the invention, the second invention or the fourth invention.

In the seventh aspect of the present invention, the high-voltage power switch of the static eliminator and the air blower switch are separately provided and the timing is adjusted to prevent explosion.

[0022]

EXAMPLES The present invention will be described in detail below based on examples. FIG. 1 is a vertical cross-sectional explanatory view showing an embodiment of a document shredder with a static eliminator according to the first invention and the second invention, and FIG.
It is a longitudinal section explanatory view showing an example of a document shredder with a static eliminator concerning the invention, the 4th invention, the 5th invention, and the 6th invention. Figure 3
FIG. 4 is also a plan view of a long rod-shaped static eliminator used in an embodiment of the document shredder with a static eliminator according to the second invention, and FIG. 4 is a front view of the same long rod-shaped static eliminator. FIG. 5 is a vertical cross-sectional plan view of relevant parts showing the structure of the same long rod-shaped static eliminator. FIG. 6 is a vertical sectional front view of a main part showing a static eliminator used in an embodiment of the document shredder with a static eliminator according to the fourth, fifth, and sixth inventions of the document shredder with a static eliminator. 7 is a vertical sectional side view showing the structure of the static eliminator of the same embodiment, FIG. 8 is a vertical sectional plan view showing the structure of the static eliminator of the same embodiment, and FIG. 9 is a static eliminator according to the seventh invention. FIG. 11 is a wiring diagram for adjusting the timing of the attached document shredder, and FIG. 10 is an explanatory diagram showing a timing adjustment operation of the document shredder with a static eliminator according to the seventh invention. Further, FIG. 11 shows an experimental result in an environmental experiment of the static elimination effect of the present invention.

As shown in FIGS. 1 and 2, the document shredder is
The shredded portion 2 is provided at an upper position of the box-shaped main body 1, and the shredded waste storage box 3 is arranged below the shredded portion 2 in the box-shaped main body 1 so as to be stored. The shredded scraps C cut by the section 2 are configured to fall and be stored in the shredded scrap storage box 3. The shredder 2 is provided with a pair of cutters 5 and 5 provided immediately below the shredded sheet insertion port 4 so as to correspond to each other, a motor for driving the cutters 5, 5, and a cutter (not shown). ) And.

In the document shredder, a static eliminator 6 including an ion generator 7 and an air blower 8 is provided at an intermediate position between the shredded portion 2 and the shredded waste storage box 3, and the ion generator 7 is provided. The generated ions are radiated together with the air blown from the air blower 8 toward the falling passage area A of the charged shredded scraps C and the shredded scrap storage box B below, and shredded by the clone force. A document shredder equipped with a static eliminator, characterized in that the charges in the scrap C, shredded scrap bag 9 and shredded scrap storage box B are neutralized and discharged.

The document shredder with a static eliminator of the first embodiment using the static eliminator 6A shown in FIGS. 3, 4 and 5 has a power source / controller unit 1 at the base of an elongated rod-shaped electrode housing 10.
1 and a blower 12 are provided, and the long rod-shaped electrode housing 10 is provided with electrode needles 13, 13 and 13 scattered at predetermined intervals, and the power supply / controller unit 11 at the base is a high voltage cord. 14 via the electrode needle 13,13,1
An ion generator 7 configured to generate ions from 3 is provided. The static elimination method of the ion generator 7 according to the illustrated first embodiment is a plus / minus bipolar DC corona discharge method, but needless to say, it need not be limited to this. The static elimination distance is 50 mm to 1000 mm, the ozone generation amount is 0.005 PPM or less, and the ion balance control system is adopted.

As shown in FIG. 5, in the long rod-shaped electrode housing 10 which is the static eliminator 6A, the blower 1 at the base is attached.
An air duct 14 that is connected to 2 and can blow air along the lengthwise direction is provided, and outlets 15, 15, 15 are provided around the electrode needles 13, 13, 13 to provide the electrode needles 13, 13, 1
3 and an air blower 8 for blowing air from around the electrode 3, and the electrode needles 13, 13, 1 of the ion generator 7
Ions (positive ions, negative ions) generated from 3 are transferred and irradiated in a predetermined direction and range together with the air blown from the blowout ports 15, 15, 15 of the air blower 8.
In addition, the outlets 15, 15 ,, around the electrode needles 13, 13, 13,
15 is provided so as to blow out from around the electrode needles 13, 13, 13, so that it has a cleaning action and the electrode needles 13, 13,
Paper dust and shreds are prevented from adhering to 13 easily.

As shown in FIGS. 1 and 2, the direction and range in which the ions are sent along with the air are the falling passage area A of the electrically charged shredded chips C and the lower shredded chip storage box B. .
This is caused by the generation of static electricity in the paper dust and shredded waste C, and is scattered inadvertently, spills from the shredded waste storage container 3, and is irregular in the shredded waste bag 9 and shredded waste storage box 3. Adverse phenomena such as excessive adhesion, adhesion to the surrounding box-shaped body 1 and adhesion to the hands and body when the worker tries to remove it,
This is because it mainly occurs in the shredded scrap bag 9, the shredded scrap storage box 3 and its peripheral portion during falling and accumulation. Therefore, by concentrating the direction and range in which the ions are sent and irradiated in the falling passage area A of the charged shredded chips C and the inside B of the shredded chip storage box B, these charges are neutralized to eliminate the charges. I did so,
The harmful effects caused by static electricity in those areas were eliminated, and the document shredder was easy to use.

Particularly, in the static eliminator 6A according to the first embodiment, the power source / controller unit 1 is provided in the long rod-shaped electrode housing 10.
1, an ion generator 7 and an air blower 8 are provided so that the ions can be irradiated widely and far along with the air blown out. Therefore, with the long rod-shaped static eliminator 6,
Curtain-shaped ions are generated from the electrode needles 13, 13, 13 provided side by side, which are blown out from the outlet port 15,
The shredder scraps C are transported to a distance by the air blown from the peripheries of the electrode needles 13, 13 and 13 through 15, 15 and fall into the falling passage area A of the shredded scraps C that are charged and the inside of the shredder scrap storage box B. Since the irradiation is directed toward the target, static electricity can be removed even with moving paper dust or shredded waste C, and static electricity can be eliminated in a wide space by completely covering the site or the object where the failure occurs. Also,
Since the static eliminator 6 according to the present invention is a slim and long rod-shaped static eliminator 6A, the layout is free, and if it is arranged three-dimensionally, the entire space or a specific spot can be efficiently neutralized in three dimensions.

FIG. 6, FIG. 7 and FIG. 8 show a second embodiment of a newly developed small and high performance static eliminator 6B. The static eliminator 6
B is composed of a base unit house 16 in which the power supply / controller unit 11 is housed, and a tip unit house 17 in which the ion generator 7 and the air blower 8 are housed. The tip unit house 17 is provided with a blower port 18 on its inner wall and an intake port 19 on the outer wall for taking in air from the outside. The blower port 18 is provided in the tip unit house 17. A plurality of positive electrode needles 13a and negative electrode needles 13b arranged on opposite sides of the earth plate 21 so as to face each other, and an intake port 19 on the rear side of the ion generator 8
An air blower 8 in which a fan 22 and a drive motor 23 are arranged is installed in the vicinity. In the figure, 24 is
It is a filter for preventing paper dust and shredded dust from adhering to the electrode needles 13a and 13b.

The static eliminator 6B according to this embodiment is a power source 100.
A method of corona discharge with a DC voltage of V was adopted. The feature is that six positive electrode needles 13a and six negative electrode needles 1 are provided in the tip unit house 17 near the air outlet.
A plurality of ion generators 3b are disposed on opposite sides of the earth plate 21 so as to face each other, and a fan 22 and a drive motor 23 are disposed behind the ion generator 7 to blow out air. It has a structure in which the vessel 8 and the interior are installed.
Since the ground plate 21 is thus interposed, the positive electrode needle 1
3a and the negative electrode needles 13b can be arranged in a large number even if they are small, and yet the positive electrode needles 13a and the negative electrode needles 13b can be distinguished from each other, so that the generated positive ions and negative ions are mixed carelessly, and Recombination is performed and the static elimination effect is not weakened by the cancellation. In other words, it is small and lightweight, and can stabilize the corona discharge and generate a large amount of positive and negative ions.
Nevertheless, mitigation due to ion recombination can be minimized.

Further, since the air blower 8 having the fan 22 and the drive motor 23 is provided immediately behind the ion generator 7, the flow of air blown out can be created. The positive and negative ions can be efficiently sent to a long distance for static elimination.

Furthermore, the positive electrode needle 13a is operated by operating the ion generator 7 to cause direct current corona discharge.
By generating positive ions and negative ions at the same time from the negative electrode needle 13b and operating the fan 22 of the air blower 8, the air taken in from the air inlet 19 of the tip unit house 17 is blown out from the air blower 18. In this case, the air blown out from the blower opening 18 is irradiated to the falling passage area A of the shredded chips C charged with positive ions and negative ions and the shredded chip storage box B below. Then, the charges of the shredded scraps C, shredded scrap bag 9 and shredded scrap storage box 3 which are charged by the cloned force of the irradiated ions are neutralized and discharged.

The base unit house 16 and the tip unit house 17 according to the second embodiment are formed in a cylindrical shape, and one of them is rotatably fitted to the other, so that the tip unit house 17 In addition to being able to change and adjust the direction to the rotational direction, if necessary, it is formed so that it can be expanded and contracted in the fitting direction to change the direction and position of the blower opening 18 of the tip unit house 17. The ionization effect area by ion irradiation can be variably adjusted. Also,
The blower ports 20 and 20 are provided at the blower port to change the direction of the air blown from the blower port 18 so that the static elimination effect region can be variably adjusted. These configurations are such that the blowing direction of the air and the direction of the wind can be changed or expanded and contracted so as to be widely installed from a small document shredder to a large document shredder.

FIG. 9 is a wiring diagram for controlling the configuration operation of the document shredder with a static eliminator according to the fourth invention. The switch Io SW1 of the high-voltage power source of the static eliminator 6, the switch SW2 of the air blower, the switch SW3 of the shredding motor for operating the cutters 5, 5, and the charge sensor are separately provided, and these operations are performed. The controller controls and adjusts the ON / OFF timing of each switch. In other words, by controlling the ON / OFF timing of each switch while measuring the threshold value with the charging sensor, the shredding action, the generation of ions, and the blowing of air are linked to prevent the harmful effects of explosion protection. In addition, it was designed to eliminate static electricity more smoothly and efficiently and eliminate the harmful effects of static electricity.

As a specific timing, as shown in FIG. 10, a switch of a high-voltage power source for generating ions is generated when the switch SW2 of the air blower is turned on at the same time when the action of shredding a sheet is started. ON of SW1 is
The timing is delayed a little, the switch SW1 of the high-voltage power supply for generating ions is turned off at the same time when the shredding of the paper is finished, and then the timing is delayed a little, and then the blower of the switch SW2 of the air blower is turned off. That is, the controller turns on the switch SW2 of the air blower to start the air blowing and then turns on the switch SW1 of the high-voltage power supply to generate ions, and when stopped, the switch SW1 of the high-voltage power supply.
Is turned off and the ions are extinguished, and then the timing is adjusted so as to stop the blowing of air from the air blower. By doing so, explosion-proof measures can be taken.

<Environmental Experiment of Static Elimination Effect> The inventor conducted an environmental test of static elimination effect using the document shredder with a static eliminator of the second embodiment. The applicant's environmental test room is kept at a room temperature of 20 plus / minus 1 ° C. and a humidity of 10 to 15% RH.
In the room, the document shredder with the static eliminator of the second embodiment,
Four types of paper (Type 6000 paper / ODes paper / copy printing paper A5 / my recycled paper) dried for 24 hours in the above environment were prepared. Then, the four types of paper are put into the document shredder equipped with the static eliminator and operated until the shredded dust overflows,
The number of cuts until the overflows of the static eliminator 6 and the state where the static eliminator 6 was not used were counted, and the charged state was measured with a locator.

<Experimental Results> As a result of the experiment, when the static eliminator 6 was not used, all the charged states after the operation were intensely charged to 45 KV or more. On the other hand, when the static eliminator 6 was operated in synchronization with the document shredder, a stable static erasing effect was obtained even in a state of intense charging of 8.5 KV to 11.5 KV. Figure 11
[Fig. 4] shows experimental results in an environmental experiment of the static elimination effect of the present invention.

[0038]

As described above, in the document shredder with a static eliminator according to the present invention, a static eliminator including an ion generator and an air blower is provided at an intermediate position between the shredded portion and the shredded waste storage box. It is provided with the air generated by the ion generator along with the air blown from the air blower, and it irradiates the falling passage area for the charged shredded chips that fall and the shredded chip storage box below, and the clone power is used to generate fine particles. Scraps, shredded scrap bags, shredded scrap storage boxes are designed to neutralize and eliminate the electric charge. This is due to the static electricity of shredded scraps in the document shredder, not the shredded parts such as the cutter and its surroundings. By finding out what is happening in the part and irradiating the part intensively, it was possible to eliminate the charge more accurately and more efficiently, and to eliminate the substantial adverse effect of the static electricity of the shredded waste.

The second aspect of the present invention is a long rod-shaped static eliminator, which generates a large amount of ions in a curtain shape from electrode needles arranged side by side, which is carried to a long distance by the air blown from the periphery of each electrode needle. Irradiation is directed toward the falling passage area of the shredded and electrically charged shreds and the inside of the shredded chip storage box below, so even if the shredded chips are in motion, static electricity can be removed and a failure has occurred. It is characterized in that it can completely cover the part and eliminate static electricity in a wide space. Further, since the static eliminator according to the present invention is a slim and long rod-shaped static eliminator, the layout can be freely arranged, and if it is arranged three-dimensionally, the entire space or a specific spot can be efficiently neutralized in three dimensions.

The fourth aspect of the present invention is to provide a tip end unit house,
An ion generator, in which a plurality of positive electrode needles and negative electrode needles are arranged in the vicinity of the air outlet so as to face each other via a ground plate, and a fan and a drive motor are provided behind the ion generator. The air blower provided therein is installed inside. Since the ground plate is interposed in this way, the positive electrode needle and the negative electrode needle can be arranged in a small number and in a large number of rows, and yet the positive electrode needle and the negative electrode needle can be distinguished, so that the generated positive ions and negative ions are It will not mix carelessly, and the ions will be recombined so that the static elimination effect will not be weakened by the cancellation. That is, the size and weight of the corona discharge can be stabilized and a large amount of positive ions and negative ions can be generated, and the reduction due to recombination of ions can be minimized. Also,
Since an air blower equipped with a fan and a drive motor is provided immediately behind the ion generator, it is possible to create a flow of air blowing air, and to generate positive and negative ions efficiently. It can be sent well to a long distance for static elimination. As a result, it has become possible to widen the effective static elimination range.

Further, in the fifth and sixth inventions, the blowing direction of the ions and the air, the direction of the wind, and the expansion and contraction of the air can be made variable so that the small document shredder to the large document shredder can be used. It can be installed in a wide range.

In the seventh aspect of the invention, the switch for the high-voltage power source of the static eliminator and the switch for the air blower are separately provided, and the timing is adjusted to prevent explosion.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional explanatory view showing an embodiment of a document shredder with a static eliminator according to the first invention and the second invention.

FIG. 2 is a vertical cross-sectional explanatory view showing an embodiment of the document shredder with a static eliminator according to the first invention, the fourth invention, the fifth invention, and the sixth invention.

FIG. 3 is a plan view of a long rod-shaped static eliminator used in an embodiment of the document shredder with a static eliminator according to the second invention.

FIG. 4 is a front view of the same elongated rod-shaped static eliminator shown in FIG. 3.

FIG. 5 is a vertical cross-sectional plan view of a main portion showing the structure of the same long rod-shaped static eliminator shown in FIG.

FIG. 6 is a vertical cross-sectional front view of essential parts showing a static eliminator used in an embodiment of the document shredder with a static eliminator according to the fourth, fifth, and sixth inventions.

7 is a vertical cross-sectional side view showing the structure of the static eliminator of the embodiment shown in FIG.

8 is a vertical plan view showing the structure of the static eliminator of the embodiment shown in FIG.

FIG. 9 is a wiring diagram for adjusting the timing of the document shredder with a static eliminator according to the seventh invention.

FIG. 10 is an explanatory diagram showing a timing adjusting operation of the document shredder with a static eliminator according to the seventh invention.

FIG. 11 shows experimental results in an environmental experiment of the static elimination effect of the present invention.

[Explanation of symbols]

1 ... Box-shaped body 2 ... Shredded part 3 Shredded waste storage box 4 Shredded sheet insertion slot 5 ... Cutter 6 ... Static eliminator 6A ... Long bar static eliminator 6B: Small, compact and high performance static eliminator 7 ... Ion generator 8 ... Air blower 9 ... Shredded waste bag 10 ... Long rod-shaped electrode housing 11 ... Power / Controller 12 ... Blower 13 ... Electrode needle 13a ... Plus electrode needle 13b ... Minus electrode needle 14 ... High voltage cord 15 ... outlet 15 16 ... Base unit house 17 ... Tip Unit House 18 ... Blower 19 ... Intake port 20 ... Looper 21 ... Ground plate 22 ... fan 23 ... Drive motor 24 ... Filter A: Fall pass area B: Shredded waste storage box C ... Shredded waste

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yuki Takeda             Yamagata Prefecture Nishimurayama-gun Kawakita-cho Yachimi 115-3 shares             Inside the ceremony company Alpha Techno Tool (72) Inventor Kuji Inoue             2941 Yamabe, Yamabe-cho, Higashimurayama-gun, Yamagata Prefecture             Ishizawa Manufacturing Co., Ltd. F term (reference) 4D065 CA12 CB02 CC01 DD08 DD25                       EB12 ED06 ED18 ED50

Claims (7)

[Claims] 1. A shredded portion is provided at an upper position of a box-shaped main body, and a shredded waste storage box is disposed below the shredded portion in the box-shaped main body, and the shredded portion is cut by the shredded portion. In a document shredder in which scraps are dropped and stored in a shredded waste container, an ion generator and an air blower are provided at an intermediate position between the shredded portion and the shredded waste container. A clone is provided with a static eliminator, which irradiates the ions generated by the ion generator with the air blown out from the air blower, toward the falling passage area of the falling charged shreds and the shredder storage box below. A document shredder equipped with a static eliminator, which is configured to neutralize and remove electric charges in shredded scraps, shredded scrap bags, and shredded scrap storage boxes by force. 2. A shredded portion is provided at an upper position of the box-shaped body, and a shredded waste storage box is arranged below the shredded portion in the box-shaped body, and shredded by the shredded portion. In a document shredder in which scraps are dropped and stored in a shredded waste container, an ion generator and an air blower are provided at an intermediate position between the shredded portion and the shredded waste container. A static eliminator is provided.The static eliminator is provided with a power supply / controller unit at the base of a long rod-shaped electrode housing, and the core long rod-shaped electrode housing is provided at predetermined intervals along the lengthwise direction. An ion generator configured to disperse electrode needles, connect the power supply / controller unit of the base portion and the electrode needles with a high voltage cord, and generate ions from the electrode needles; A fan is installed at the base of the electrode housing of An air blower that is provided with an air duct that can blow air along with an air outlet around the electrode needle, connects the air blower at the base with the air duct, and blows air from around the electrode needle. Irradiating the ions generated from the electrode needle of the ion generator toward the falling passage area of shredded debris and the shredded debris storage box below which are charged together with the air blown from the outlet of the air blower. A document shredder with a static eliminator characterized by neutralizing the electric charges of the shredded scraps, the shredded scrap bag, and the shredded scrap storage box by the clone power to eliminate the charge. 3. The ion generating method of the ion generating device may be any one of a method of corona discharge with a DC voltage, a method of corona discharge with an AC voltage, and a method of corona discharge with a pulse DC voltage. A document shredder with a static eliminator according to claim 1 or 2. 4. A shredded portion is provided at an upper position of the box-shaped body, and a shredded waste storage box is arranged below the shredded portion in the box-shaped body, and shredded by the shredded portion. In a document shredding machine in which scraps are dropped and stored in a shredded scrap storage box, a base unit house in which a power supply / controller section is installed in an intermediate portion between the shredded part and the shredded scrap storage box , A static eliminator comprising an ion generator and a tip unit house in which an air blower is installed is provided.
The inner wall is provided with a ventilation port, and the outer wall is provided with an intake port that can take in air from the outside.In the tip unit house, a positive electrode needle and a negative electrode needle are provided in the vicinity of the ventilation port. A plurality of ion generators are arranged so as to face each other through the ground plate, and an air blower in which a fan and a drive motor are arranged in the vicinity of the intake port on the rear side of the ion generator. It is internally installed, and by operating the ion generator to generate direct current corona discharge, positive and negative ions are generated from the positive electrode needle and the negative electrode needle, and the fan unit of the air blower is activated to operate the tip unit. The air taken in from the air intake of the house is made to blow out from the air blower, and plus air and negative ion are emitted together with the air blown from this air blower. Irradiate the falling passage area of the charged shreds and the inside of the shredded scrap storage box below, and discharge the charges of shredded scraps, shredded scrap bags, and shredded scrap storage boxes charged by the cloning force. A document shredder with a static eliminator, which is characterized by neutralizing and neutralizing. 5. A base unit house and a front end unit house are formed into a cylindrical shape, and one of them is rotatably fitted to the other so that the direction of the front end unit house can be changed and adjusted in the rotational direction. At the same time, if necessary, it is formed so that it can be expanded and contracted in the fitting direction, and the direction and position of the air and ions blown out from the air outlet of the tip unit house are changed, and the static elimination effect area due to ion irradiation is changed. The document shredder with a static eliminator according to claim 4, wherein the document shredder is variably adjustable. 6. A document with a static eliminator according to claim 4, wherein a looper is provided at the blower port so that the direction of the air blown from the blower port can be changed to variably adjust the static elimination effect region. Shredder. 7. A high-voltage power switch for the static eliminator and a switch for the air blower are separately provided, and after turning on the switch for the air blower to start air blowing, the switch for the high-voltage power source is turned on to remove ions. 5. The timing is adjusted so that the generation of air does not occur, and at the time of stoppage, the switch of the high-voltage power supply is turned off to extinguish the ions and then the blowing out of the air is stopped. Document shredder with static eliminator described in.