JPH0716486A - Shredder - Google Patents

Abstract

PURPOSE:To prevent the scattering of wastepaper due to the separation of a bundle of paper on a paper jam by installing a paper cutter for cutting the tip part of tit bundle of paper finely cut partway on the paper jam and a conveying roller for taking out the bundle of paper in a paper jam in a non- finely cut state by its reverse rotation after cutting with the paper cutter. CONSTITUTION:In a shredder where a bundle of paper in a paper jam is reversely rotated to be taken out, the tip part of a bundle of paper 21 finely cut partway is cut by a paper cutter 22 on a paper jam. After the cutting with the paper cutter 22, the bundle of paper in a paper jam 21 is taken out in a non- finely cut state from a paper feeding port by the reverse rotation of a conveying roller. As a result, the scattering of wastepaper due to the separation of a bundle of paper on a paper jam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shredder, which is an office device for shredding unnecessary documents, and more particularly to a shredder scatter preventing function and a security function.

[0002]

2. Description of the Related Art Conventionally, when a shredder user causes a paper jam by throwing in a number of paper bundles larger than the shredder's paper handling capacity while shredding unnecessary documents, the shredder is fed backwards. After taking out the paper, the tip of the paper bundle that was shredded and entangled halfway was separated by hand, and the number of paper bundles was reduced, and then the paper bundle was reloaded.

Also, in order to throw away the waste paper that has accumulated in the waste box in the shredder, when removing the waste box from the shredder body, shake the waste box body to evenly disperse the waste paper, and then do not scatter the waste paper. I took it out carefully.

Furthermore, users of conventional shredders manually shred important confidential documents in large quantities and leave the shredder device until they have confirmed that all documents have been shredded. I couldn't.

[0005]

However, when the paper bundle is separated by hand as in the above-mentioned conventional example, at the moment when the leading end portion of the paper bundle that is shredded and bite is peeled off,
Scattered pieces of paper scattered dust around. In addition, when removing the waste box from the shredder body in order to discard the waste paper that has accumulated in the waste box, the highest piled-up part of the waste paper is
It was caught by the rotating blade in the shredder body, the body above the door, etc. and scattered dust into and around the shredder body while taking out the waste box.

Furthermore, as in the above-mentioned conventional example, it is impossible to leave the shredder device by hand until an important confidential document is manually fed and it is confirmed that all the documents are shredded. , When there was a sudden request, when a call was received, or when another work had to be done in parallel, it was a hindrance to the effective use of time and the smooth execution of work. Also, leaving a place while shredding a large amount of important confidential documents is
Because there is a risk that others will take documents while shredding,
There was a problem with security (confidentiality maintenance).

The present invention has been made in view of the above-mentioned points, and a first object thereof is to prevent scattering of waste paper due to separation of a bundle of paper when a paper jam occurs, or to prevent scattering of waste paper when removing a waste box. It is to provide a shredder that can handle.

A second object of the present invention is to provide a shredder capable of improving security during shredding of confidential documents and effectively utilizing working time.

[0009]

In order to achieve the above first object, the first aspect of the present invention is a shredder which can reversely take out a sheet bundle of a paper jam and take out halfway when the paper jam occurs. It has a paper cutter for cutting the tip end portion of the shredded paper bundle, and a conveyance roller for taking out the paper bundle of the paper jam in the non-shredded state from the paper feed port by the reverse rotation after cutting by the paper cutter. Is characterized by.

Further, according to the first aspect of the present invention, in a shredder capable of reversing and taking out a paper bundle of a paper jam, the paper bundle is centered on the leading end portion of the paper bundle cut halfway during the paper jam. A roller for pulling in a bundle of paper in one direction when separated in two directions, a separation bar for intervening in a joint portion of the bundle of paper separated in two directions to promote separation of both bundles of paper, and the roller It is also possible to have a movable paper scattering prevention cover box at the top and bottom for covering the separation bar and the paper bundle.

Further, according to the first aspect of the present invention, in a shredder which can reversely rotate and take out a bundle of paper jams, the scraps of paper pieces generated when the taken out bundle of paper jams are separated by hand are absorbed. And a suction hose for feeding the waste paper sucked by the suction device into the waste box.

In order to achieve the above-mentioned first object, a second form of the present invention is a shredder which has a waste box in which shredded paper waste is stored and which can be taken out from the inside of the shredder main body by an opening / closing door. A vibrating mechanism composed of an expanding and contracting spring attached to the waste box, a rotating cam, and a roller tire, and a drive source for causing a vibrating motion for smoothing the waste paper accumulated in the waste box by the rotation of the cam. It is characterized by including.

A second aspect of the present invention is a shredder which has a waste box in which shredded paper waste is stored and which can be taken out from the inside of the shredder body by an opening / closing door, and is provided at a raised position of the waste box. And a pair of bottom members that move up and down, and operate the pair of bottom members to smooth the accumulated paper waste by dropping the waste paper into the actual bottom surface of the waste box when the pair of bottom members are lowered. And a gear mechanism that operates.

In order to achieve the above-mentioned second object, a third aspect of the present invention is a shredder having a paper feeder for automatically feeding a paper bundle to be shredded, and a paper bundle insertion port of the paper feeder is provided. A movable cover box that can be covered, a magnetic card type locking means that can lock the cover box and the paper feeder main body after covering the paper bundle insertion port with the cover box, and a secret code for unlocking It has a collation means.

A third aspect of the present invention is a shredder having a paper feeder for automatically feeding a bundle of paper to be shredded, and a movable cover box capable of covering a paper bundle insertion port of the paper feeder, and an optional cover box. The time setting means capable of inputting and setting the time, and the paper bundle insertion port covered with the cover box, and the cover box and the paper feeder main body are automatically set according to the time setting by the time setting means. An automatic locking means for locking, a timer for counting the time set by the time setting means, and a timer unlocking means for unlocking the key lock of the cover box and the paper feeder when the timer times out. It can also be a feature.

A third aspect of the present invention is a shredder having a paper feeder for automatically feeding a bundle of paper to be shredded, and a movable cover box capable of covering a paper bundle insertion port of the paper feeder. Feature input means for inputting the user's features and the paper bundle insertion port is covered with the cover box, and then the cover box and the paper feeder main body are automatically locked according to the feature input of the feature input means. Pattern recognition in which the automatic locking means, the characteristics of the user re-input to the characteristics input means for unlocking, and the characteristics of the user input last time are compared and unlocked by the matching of both characteristics. It is also possible to have an unlocking means.

The third aspect of the present invention can also be characterized in that the feature of the user is a fingerprint.

A third aspect of the present invention is a shredder having a paper feeder for automatically feeding a bundle of paper to be shredded, a movable cover box capable of covering a paper bundle input port of the paper feeder, An automatic locking means for automatically locking the cover box and the main body of the paper feeder by setting the paper bundle in the paper feeder and covering the paper bundle inlet with the cover box, and setting the paper feeder in the paper feeder. Detecting means for detecting the end of shredding of the formed sheet bundle, automatic unlocking means for automatically unlocking in response to the detection of the end of shredding by the detecting means, And a communication means for generating a radio wave for notifying the user of the end of shredding.

[0019]

In the first embodiment of the present invention, since the paper cutter, the paper separating mechanism or the suction device is provided, it is possible to prevent the scattering of waste paper due to the separation of the paper bundle when the paper is jammed.

Further, in the second embodiment of the present invention, since the waste box is provided with the vibration mechanism and the bottom opening mechanism, it is possible to prevent the scattering of waste paper when taking out the waste box.

Further, in the third embodiment of the present invention, since the paper feeder with the key lock mechanism is provided in the shredder, it is possible to improve the security during shredding of confidential documents and effectively utilize the working time. .

[0022]

Embodiments of the present invention will be described in detail below with reference to the drawings.

(Overall Common Structure of Shredder) FIG. 1 shows a common cross-sectional structure of the shredder described in each embodiment of the present invention described later. In FIG. 1, 1 is a shredder main body, 2 is a conveyance roller whose rotation direction changes when feeding or returning a bundle of paper, 3 is a path changing plate for feeding paper to a rotary blade, and 4 is for shredding the fed paper The bidirectional rotary blades 5 and 5 are motors and power supplies for driving the conveying rollers 2 and the rotary blades 4, and 6 is a manual sheet feeding port. 7 is a bundle of shredded paper, 8 is shredded paper waste, 9 is a waste box for collecting waste paper, and 10 is an opening / closing door that opens and closes to remove dust from the waste box and after each maintenance inspection. 11 is a shred start button, 12 is a shred stop button, 13 is a reverse feed start button, 14 is a controller that controls the motor 5 in accordance with the commands of the control buttons 11 to 13, and 15 is an infrared ray that monitors the state of paper accumulation. A sensor 16 is an indicator for notifying the state of the waste paper detected by the infrared sensor 15. 17 is a sieving plate that collects and disperses the shredded paper in the middle of the waste box.

The actual operation of the shredder having the above-mentioned structure will be described. When the user turns on the shredding start button 11, the transport roller 2 starts to rotate in the forward direction,
The bundle of paper in the manual paper feed port 6 is sent by the carrying roller 2 to the bidirectional rotary blade 4 through the path changing plate 3. Two-way rotary blade 4
Performs the shredding of the sheet bundle while rotating in the forward direction, and the shredded scraps scattered by the sieving plate 17 are stored in the waste box 9. This series of flow is shown by the direction of the arrow in FIG.

By repeating such an operation, the paper scraps (shredded scraps) 8 accumulate in the scrap box 9 while raising the middle, and come into contact with the bidirectional rotary blade 4 and the sieve plate 17. . Therefore, the infrared sensor 15 causes the waste paper 8
When the waste paper 8 is accumulated and rises up to a certain distance, the indicator 16 on the upper part of the main body is turned on to warn the user to discard the waste paper.

If the bundle of paper 7 is too much inserted into the manual paper feed port 6, the shredder cannot be shredded, and the blade of the bidirectional rotary blade 4 remains stuck in the tip of the paper. In such a case, the user pushes the stop button 12 to stop the transport roller 2 and the bidirectional rotary blade 4, and then pushes the reverse feed start button 13 to push the transport roller 2 and the bidirectional rotary blade 4. Reverse rotation is performed, thereby removing the paper bundle 7 that has been jammed by the flow in the opposite direction of the arrow in FIG.

(First Embodiment) First, each embodiment of the first and second modes of the present invention for preventing the scattering of waste paper will be described.

As described above, the state of the sheet bundle when the sheet jam due to the insertion of the sheet bundle of the number exceeding the shredder's sheet separating ability is taken out by the reverse rotation is as shown in FIG. At this time, in order to re-input, it becomes necessary to separate the sheet bundle 18 at the tip portion 19 of the paper shredded halfway to reduce the number of sheets to be inserted and then re-inject, but at this time, waste paper is scattered around. Will be done. In the first embodiment of the present invention, in order to prevent this, the paper bundle 18 is cut by the paper cutter at the position shown by the alternate long and short dash line 20 in this figure.

The flow of this cutting operation will be described with reference to FIG. 3 in which the portion of the manual paper feed port 6 is enlarged. State S1 is a state in which a jammed sheet bundle is fed back and taken out. Here, reference numeral 21 denotes a sheet bundle that is reversely fed and taken out, and the leading end thereof is shredded halfway. A movable paper cutter 22 is stored in the cutter storage box 23 in the state of S1. Further, reference numeral 24 is a movable receiving plate for receiving the paper cutter 23 by sandwiching the sheet bundle at the time of cutting the paper, and is stored in the receiving plate storage box 26 in the state of S1.

In this state, when the user presses the paper cut start button 25, the receiving plate 24 comes out from the receiving plate storage box 26 as shown in the state of S2. Then, the paper cutter 22 comes out from the cutter storage box 23, and the leading end portion of the paper bundle is cut and falls down.

Finally, in the state S3, the paper cutter 22 is stored in the cutter storage box 23, then the receiving plate 24 is stored in the receiving plate storage box 26, and all the operations are completed.

Since the paper cutter 22 is provided in the shredder in this manner, it is possible to carry out reverse feeding without scattering the paper waste.

(Second Embodiment) The second embodiment of the present invention has a paper separating mechanism as shown in FIG. 4 for the scattering of waste paper caused by separating the bundle of papers fed back and taken out by hand. An example of a configuration that is prevented by carrying out in the cover is shown. State S4
Is a state in which the jammed sheet bundle is fed back and taken out.
Here, 21 is a sheet bundle that is reversely fed and taken out in the same manner as described above, and the leading end thereof is shredded halfway. 27 is open only downward and 5 sides are surrounded by plates to prevent dust scattering,
Reference numeral 28 is a bidirectional pull-in roller that pulls in and returns the separated sheet bundle, and 30 is a sheet bundle separating bar that projects downward into the cover 27.

First, in the first state S4, the shredder user separates and spreads a sheet bundle indicated by reference numeral 21 into two pieces with the leading end thereof entwined, and bidirectionally pulls in which the bidirectional pulling roller 28 is supported. The roller support bar 29 is lowered, and one paper bundle 33 (on the right side in the drawing) is sandwiched by the roller 28 while being pressed. However, the cover 27 and the bar 29 are designed to move separately. Next, the user lowers the dust-scattering prevention cover 27 so that the other bundle of papers 32 is caught by the tip of the cover. This state is shown in S5. Further, at this time, the paper bundle separating bar 30 separates the paper bundles 32 and 3
It seems that 3 is separated.

In the state of S5, the user holds the sheet bundle 32 (left side in the figure) while pulling it to the left, and presses the separation start button 3
When 1 is turned on, the bidirectional pull-in roller 28 starts rotating counterclockwise, and pulls in the sheet bundle 33 in the right direction. At this time, the joint portion of the sheet bundle 32 and the sheet bundle 33 is gradually separated while being pushed by the sheet bundle separating bar 30, and eventually separated. The waste paper generated at the time of separation does not fall down or is scattered around by the dust scattering prevention cover 27, so that the waste paper is prevented from scattering around. This state is represented by S6.

(Third Embodiment) As shown in FIG. 5, the third embodiment of the present invention is a structural example in which a paper dust suction device 34 is attached to the main body 1 of the shredder. When the user reverses the bundle of paper that has been sent back and separated by hand (in the direction of the arrow in the figure), the scrap 37 is generated when the user turns on the start button 36 of the suction device 34 in advance. If done, everything will be sucked into the suction device 34. The waste paper sucked by the suction device 34 passes through the suction hose 35 and is accumulated in the waste box 9. This prevents the scattering of waste paper around.

(Fourth Embodiment) In the fourth embodiment of the present invention, when the scraps in the waste box 9 are full, a vibrating mechanism is used when the scraps are taken out to prevent the scraps from being scattered. The structural example which concerns on the 2nd form of is shown. Figure 1
At the time, when the paper scraps 8 accumulate in the waste box 9, piles pile up around the middle of the waste box 9. In this state, when the user tries to remove the waste box 9 by opening the opening / closing door 10 of the shredder, the top of the accumulated dust is caught by the bidirectional rotary blade 4 and the sieving plate 17, and conventionally, by pulling out as it is, the inside of the main body or Scattered paper dust around.

In this example, the pile of waste paper is automatically smoothed when the waste bin is taken out, and the waste paper is pulled out without hitting the surroundings of the apparatus. That is, FIG.
In the state S7, 42 is a waste box with a pulley 48 on the bottom surface, 43 is a pile of waste paper, 44 is an elastic spring disposed between the waste box 42 and the inner wall of the main body 1, 41
It is a cam that pushes the scrap box 42 in accordance with its rotation. The cam 41 is mounted inside the opening / closing door 40 so as to be in contact with the waste box 42. In the state of S7, the distance between the center shaft 47 and the contact portion between the cam 41 and the waste box 42 is the longest, and the expansion spring 44 arranged on the opposite side of the cam 41 is the most compressed. Here, the waste box 42 is supported on both side surfaces (not shown) so that the movement direction can be fixed.

In the state of S8, the distance between the contact portion of the cam 41 and the waste box 42 and the central axis 47 of the cam is the shortest, and the expansion spring 44 is the most extended. The movement from the state S7 to the state S8 is performed by the elastic spring 44 naturally extending, and the movement from the state S8 to the state S7 is performed by the rotating cam 41 pressing the elastic spring 44. By repeating the above movement, the waste box 42 moves while vibrating horizontally in the section indicated by the reference numeral 45, and the waste paper gradually becomes smooth like 46.

In order to stop this vibration, the height of the scraps of paper accumulated is monitored by the infrared sensor 15 of FIG. 1, and the movement of the cam 41 is stopped when the scraps are smoothed to an appropriate height. With the above operation, the waste box 4
Scattering of waste paper when the user takes out 2 is properly prevented.

(Fifth Embodiment) In the fifth embodiment of the present invention, the waste box is provided with a raised bottom type structure, the bottom is opened when the waste paper is full, and the accumulated waste paper portion is removed. An example of the structure of the bottom opening mechanism for smoothing the scrap surface by breaking it into

The state of S9 in FIG. 7 is a state in which the waste paper is full, and the waste box 9 is provided with a dust space 56 by the up / down valves 50 and 51.
It is divided into an empty space 57. When attempting to take out the waste box in this filled state, the tops of the piled up paper scraps come into contact with the shredder main body 1 at the time of taking out and cause dust scattering. Therefore, in this example, a pair of up / down valves 50 and 51 are attached to the bottom of the waste box 9,
An integrated gear 52 is attached to one end of 0, and an integrated gear 55 is attached to one end of the up / down valve 51. Further, a pull-out metal fitting 58 with a bite (latch) is attached so that a user can pull it from the outside of the waste box 9.

In this state of S9, when the user pulls the pull-out metal fitting 58 to the left in the figure, the gear 5 that meshes with the teeth of the gear 5
2 starts rotating clockwise in the drawing, and the left-side up-down valve 50 integrated with the gear 52 is lowered. Further, the gear 53 meshing with the gear 52 starts rotating counterclockwise, and the gear 54 also rotates counterclockwise due to the action of the belt 54 wound around the rotating shaft of the gear 53. As a result, the right-side up-down valve 51 integrated with the gear 55 is also lowered, and as a result, the bottom is opened.

By this bottom opening, the central portion of the piled paper scraps collapses into the space 57, and the scrap paper surface is smoothed as in the state S8. If the waste box is removed in such a smoothed state, scattering of dust can be prevented. Also,
After discarding the dust in the trash box, the user pushes the pull-out metal fitting 58 to the right side in order to return the bottom to the original state, and the operation reverse to the above occurs, and both the up / down valves 50, 51 are moved upward. , And returns to the state of S7.

(Sixth Embodiment) Next, each embodiment of the third mode of the present invention for improving security will be described.

FIG. 8 shows a common structure of the shredder main body and the paper feeder of the sixth and subsequent embodiments of the present invention. Since members 2 to 17 in the shredder body 1 are the same as those in the shredder of the first embodiment of the present invention shown in FIG. 1, the description thereof will be omitted.

Further, on the upper part of the shredder main body 1, a paper feeder 118 for automatically feeding a bundle of paper to the manual paper feed port 6 of the shredder main body is joint 12.
It is arranged so that it can be connected to the shredder main body 1 through 1. Reference numeral 119 denotes a movable cover box that covers the paper bundle input port of the paper feeder 118, and is fixed by the paper feeder 118 and a stopper 120. 117
Is a paper navigator for feeding paper from the paper feeder 118 to the shredder body 1 at the time of combining.

When a large number of sheets of paper are put on the shredder, if the manual paper feeding is performed according to the operation flow described in the first embodiment of the present invention, the user stays on the spot for a considerable time. Will have to. This is shown in FIG.
It seems that the problem can be solved by providing the paper feeder 118 as shown in, but considering that the paper bundle to be put in the shredder is usually a highly confidential document or document, it is necessary to consider a countermeasure in the following situations. There is. First, when the user of the shredder leaves the place by entrusting the paper feeder with processing, there is a risk that another person may steal the documents in the paper feeder waiting for shredding. The other is that when the user of the shredder leaves the site by entrusting the paper feeder with processing, and if a paper jam occurs due to the insertion of a large number of sheets of paper, the shredding work is interrupted, and the others are interrupted. There is a risk of stealing documents waiting to be shredded in the paper feeder.

In response to the above situation, the sixth embodiment of the present invention shows a configuration example in which the movable cover box 119 of the paper feeder 118 is equipped with a key lock system. In FIG. 9, 122 is a magnetic card key lock box mounted and fixed to the movable cover box 119 of the paper feeder 118, and 123 is a lock key of the box. This lock key starts with 1
As shown in FIG. 23, the movable cover box 119 is housed in the movable cover box 119, and after the key is locked, the movable cover box 119 and the paper feeder main body 118 are connected and locked via a lock key as shown in 124. Become.

The key locking procedure will be described in detail. As shown in FIG. 10, each user of the shredder carries a magnetic card 126 on which a personal identification code is magnetically recorded. When using the shredder, when the user determines that the number of documents to be shredded is large and confidential, the user sets the documents in the paper feeder 118 and then sets the movable cover box 119 to the paper feeder main body. As shown by reference numeral 127, the key is locked by lowering it onto 118, inserting the magnetic card 126 into the card insertion slot 125 and sliding it. At the same time, the personal identification code of the magnetic card 126 of the shredder user is stored in the personal identification collation circuit 128.

The paper feeder main body 118 and the movable cover box 119 which are locked in this way have a mechanism that does not open unless the user inserts the magnetic card 126 into the card insertion slot 125 and slides it in order to unlock it again. Has become. Since the password collation circuit 128 stores the password code for locking as described above, the password code for locking and the password code for unlocking are collated, and if they match, they are unlocked. If they do not match, control is performed to leave them locked. In the present embodiment, the above-mentioned magnetic card key lock mechanism is provided in the movable cover box, so that no matter what kind of trouble occurs during shredding, the confidentiality of the type of user of the shredder is safely protected, and Since the user may leave the shredder, the working time can be improved.

(Seventh Embodiment) In a seventh embodiment of the present invention, a timer key lock box 130 as shown in FIG. 11 is used in place of the magnetic card key lock box 122 described above. Reference numeral 129 in FIG. 11 is a timer operation panel. The details of the timer operation panel 129 are shown in FIG.
Shown in. Here, 131 is a time setting display LED (light emitting diode), and 132 is a minute setting display LED.

When the user of the shredder determines that the number of documents to be shredded is large and confidential, the documents are set in the paper feeder 118, and then the movable cover box 119 is placed in the paper feeder. It is dropped onto the main body 118 and the setting button 133 is pressed to switch to the locking time setting mode. In this state, the user uses the time setting button 134 and the minute setting button 135 to set the locking time. In the display example of FIG. 12, the LEDs 131 and 132 represent the state when the setting is made for 2 hours and 31 minutes. Here, when the user wants to change the time setting, he / she may press the cancel button 136 and perform the setting again from the beginning.

After that, after the user confirms the set time, the user presses the start button 137 to lock and
The EDs 131 and 132 count down, and will not be unlocked until the message "This shredder unlocks after XX hours and XX minutes." LED13
When 1,132 is 00 hours and 0 minutes, the lock automatically unlocks. In the present embodiment, such a timer key lock mechanism is provided in the movable cover box 119, so that the user of the shredder can safely perform another work during the locking time set by himself / herself, and cause a paper jam, for example. However, as long as you return within the set time, the confidentiality of your documents will not be seen by others, and you will not be able to take your documents with you.

(Eighth Embodiment) In the eighth embodiment of the present invention, a fingerprint recognition key lock box 141 is used as shown in FIG. 13 instead of the magnetic card key lock box 122 described above. In FIG. 13, reference numeral 140 is a fingerprint input operation panel provided on the fingerprint recognition key lock box 141, and has various parts 142 to 146. 144 is an optical reader for fingerprint input, 143 is stamp ink for attaching a fingerprint to the optical reader 144, and 142 is a cleaning paper for wiping a dirty finger or the glass surface of the optical reader.

When the user of the shredder determines that the number of shredded documents is large and confidential, the shredder users set the documents in the paper feeder 118 and set the movable cover box 119 in the paper feeder 118.
After being lowered, the stamp ink 143 is attached to the finger and the fingerprint is attached to the optical reading device 144. Then, when the user presses the fingerprint input start button 145, the optical reading device 144 reads black and white information of the fingerprint while scanning each line.

In this way, the optical reading device 14
The fingerprint information 154 fetched by the digital camera 4 is converted into digital information by the A / D converter 155 in the fingerprint processing system shown in FIG. 14 in the fingerprint recognition key lock box 141. Next, the digitally converted fingerprint information is
The fingerprint extraction circuit 156 converts the parameters into the parameters that best represent the characteristics of the individual.

Although various means for extracting the fingerprint parameter are conceivable, in order to easily detect the complex features of the pattern, the extraction means using the ridge direction as the feature of the fingerprint pattern will be described as an example with reference to FIG.

First, the digital information of the fingerprint input to the fingerprint extraction circuit 156 is 256 × 256 in step S60.
Of the original image data 165.

Next, in order to finely determine the flow of the ridges of the fingerprint, the 8 × 8 area is divided as one processing area in step S61, and the projections for the nine kinds of directional axes are used. Select one ridge direction. Here, in the 8 × 8 unit area, each pixel has nine types of direction codes, the first to eighth correspond to eight directions between 0 and π, and the ninth has a ridge direction. Not with code. In this way, the 32 × 32 direction data 166 is obtained in step S62.

Next, the ridge tracking processing is performed in step S63 in order to track the ridge-shaped features which have been turned into direction data without impairing them and to extract the fingerprint feature pattern. In the process here, the peculiarities of the direction data are eliminated to some extent, and macro-tracking is performed so as not to give too much importance to the features of the fine ridge shape. First, the core showing the apex of an arc-shaped ridge is obtained as a reference point for fingerprint collation. Next, this core is set as a tracking target point, and a ridge line is tracked according to a predetermined rule in relation to the direction code around this target point. In this way, the fingerprint 32 × 32
The direction data 166 is converted into a 16 × 16 binary feature pattern 167 in step S64. This is used as a fingerprint parameter that represents personal information well.

The fingerprint parameters obtained by the fingerprint extraction circuit 156 by the processing of the above steps are passed through the CPU bus 159 and the Disk i / f (disk interface circuit) 152 under the control of the CPU 150, and the hard disk 1
It is stored in 53. At this point, the CPU 150 determines that the fingerprint input has been performed without error, and the CPU 150 instructs the key lock control circuit 158 to lock the key. The user must remember to wipe the glass surface of the optical reading device 144 with the cleaning paper 142.

Next, when the user wants to unlock, the fingerprint is attached to the glass surface of the optical reading device 144 in the same manner as described above, and the fingerprint collation start button 146.
Will be pressed. Here again, the fingerprint parameter is created by the fingerprint extraction circuit 156 by the same method as described above and is passed to the fingerprint matching circuit 157. Fingerprint matching circuit 157
Then, the fingerprint parameter as the personal information at the time of re-input obtained by the fingerprint extraction circuit 156 is compared and collated with the fingerprint parameter created at the time of key locking and stored in the hard disk 153. Therefore, when a flag indicating that the fingerprint parameter of the personal information has been created is set in the fingerprint extraction circuit 156 at the time of re-input, the CPU 150 reads the fingerprint parameter stored in the hard disk 153 and transfers it to the fingerprint matching circuit 157. And the fingerprint extraction circuit 15
The fingerprint matching circuit 152 performs matching (pattern matching) between the current parameter created in 6 and the fingerprint parameter stored in the hard disk 153.

There are various possible methods for this fingerprint collation,
For example, when the user's fingerprint parameter is input as an unknown pattern during unlocking, the unknown pattern and the user's fingerprint parameter during locking (standard pattern) are calculated using a distance scale whose Euclidean distance is one example. If the absolute distance is within a set threshold value, the user at the time of unlocking is determined to be the same person as the user at the time of locking. Here, the key is unlocked for the first time. A DSP (Digital Signal Processor) 151 may be added to speed up the above processing. Also, as mentioned above, the user must remember to wipe the glass surface of the optical reading device with a cleaning paper for the next user.

In the present embodiment, as described above, by constructing the key lock system by the fingerprint, not only the confidentiality of the user's documents is protected, but also the personal computer in the system adopting the voice recognition, for example. There is also an advantage that the problem of erroneous recognition due to ambient noise that occurs when information is converted into voice is cleared and a stable shredder operation environment can be obtained.

(Ninth Embodiment) In a ninth embodiment of the present invention, instead of the above-mentioned magnetic card key lock box 122, an automatic lock release system box with a radio wave generating mechanism is used as shown in FIG. 171 in FIG.
Is an automatic unlocking system box with this radio wave generation mechanism, and when the user of the shredder decides that the number of documents to be shredded is large and confidential, the documents are set in the paper feeder 118. After that, the movable cover box 119 is lowered onto the paper feeder 118. At this time, the internal circuit of the automatic lock release system box 171 automatically detects the mounting of the movable cover box 119 and locks it. Here, the user 173 carries the radio wave detection device 174. Next, the user 173 starts shredding, but the user may leave the position of the shredder and go anywhere while performing shredding work.

In this state, when the internal circuit of the system box 171 detects that the shredder 118 has shredded the document, the radio wave generator 17
0 is a radio wave 17 for notifying the user 173 of the end of work.
2 is generated. As a result, the radio wave detection device 174 carried by the user 173 senses, and the electronic sound makes the user 1
73 can be notified of the end of work. At this time, unlocking is performed at the same time, but if the time until unlocking is set in consideration of the time when the user 173 returns to the shredder, the security is further improved.

In the present embodiment, as described above, the user of the shredder can freely go anywhere as long as he / she carries the radio wave detection device 174, so that he / she can continue other work without anxiety, and work time can be reduced. Efficiency can be improved.

(Other Embodiments) It is also preferable to combine a plurality of the embodiments of the present invention described above. For example, one of the examples according to each of the first, second and third aspects of the present invention may be selected and combined.

Further, the key lock mechanism is not limited to that of the above-mentioned embodiment, and various known auto-lock systems can be applied.

[0071]

As described above, according to the present invention, the following effects can be obtained.

(1) Since the shredder is provided with a dust-scattering preventing function by a paper cutter, a paper separating mechanism, or an absorbing device, when a paper jam due to the number of sheets that exceeds the paper sorting ability is fed backward and taken out to separate the paper bundle. , It is possible to prevent the waste paper from scattering around the shredder, and it is possible to save the trouble of cleaning each time of use and to improve the efficiency of work.

(2) Since the shredder is provided with a function of preventing dust from being scattered by the vibration mechanism and the bottom opening mechanism in the waste box in the shredder, when the waste box is taken out, the waste paper that is almost always scattered inside and around the shredder. Since it is possible to dispose of trash without scattering it, it is not necessary to check the waste condition of waste paper and consider when to dispose of trash, so a more comfortable environment for using the shredder can be obtained.

(3) The shredder is provided with a paper feeder with a key lock mechanism having a movable cover box, and a security function is added to the shredder by using an automatic lock system such as a magnetic card, a timer, fingerprint recognition, and radio waves. Therefore, the user can safely perform another work during the locking time, and the time can be efficiently used. Also, even if a user's confidential document ends in the middle of shredding due to a paper jam or other trouble, the confidential document will not be seen or taken by others, so trust in the shredder It also has the effect of significantly improving the feeling.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an internal structure of a general shredder to which the present invention is applicable.

FIG. 2 is a plan view showing a state of a bundle of paper jammed by a shredder.

FIG. 3 is a vertical sectional view showing a sectional structure of an upper portion of a shredder equipped with a paper cutter and an operation mode thereof in the first embodiment of the present invention.

FIG. 4 is a vertical sectional view showing a sectional structure of an upper portion of a shredder having a paper separating mechanism and an operation mode thereof in a second embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing the internal structure of a shredder equipped with a paper waste suction device according to a third embodiment of the present invention.

FIG. 6 is a vertical sectional view showing an internal structure of a shredder having a vibration mechanism attached to a waste box and an operation mode thereof in a fourth example of the present invention.

FIG. 7 is a vertical sectional view showing an internal structure of a shredder provided with a bottom opening mechanism in a waste box and an operation mode thereof in a fifth embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view showing an internal structure of a general shredder to which the present invention is applicable and a common structure of a paper feeder.

FIG. 9 is a front view showing the outer appearance of a paper feeder with a key lock mechanism according to a sixth embodiment of the present invention.

FIG. 10 is a plan view showing details of a paper feeder with a magnetic card key lock mechanism according to the sixth embodiment of the present invention.

FIG. 11 is a front view showing the outer appearance of a paper feeder with a timer key lock mechanism according to the seventh embodiment of the present invention.

FIG. 12 is a plan view showing an arrangement configuration of a timer operation panel according to a seventh embodiment of the present invention.

FIG. 13 is a front external view of a paper feeder with a fingerprint recognition key lock mechanism according to an eighth embodiment of the present invention,
FIG. 6 is a front view and an enlarged plan view showing an enlarged arrangement configuration of a fingerprint input operation panel.

FIG. 14 is a block diagram showing a circuit configuration of a fingerprint processing system according to an eighth embodiment of the present invention.

15 is a flowchart showing a processing procedure of fingerprint feature extraction in the fingerprint extraction circuit of the fingerprint processing system of FIG.

FIG. 16 is a schematic diagram showing the operation of the automatic lock release system box with a radio wave generation mechanism in the ninth embodiment of the present invention.

[Explanation of symbols]

1 Shredder Main Body 2 Conveyor Roller 3 Bidirectional Rotary Blade 6 Manual Paper Feed Port 7,32 Paper Bundle 8,43 Waste Paper 9,42 Waste Paper Box 10,40 Open / Close Door 14 Controller 15 Infrared Sensor 22 Movable Paper Cutter 23 Cutter Storage Box 24 Movable receiving plate 26 Receiving plate storage box 27 Dust scattering prevention cover 28 Bidirectional pull-in roller 30 Paper bundle separating bar 34 Suction device 35 Suction hose 41 Cam 44 Expansion springs 50, 51 Vertical valve 54 Belt 56 Garbage space 57 Space 58 Extraction metal fitting 117 Paper Navigator 118 Paper Feeder 119 Movable Cover Box 120 Stopper 121 Joint 124 Lock Key 125 Card Insertion Slot 126 Magnetic Card 128 Password Verification Circuit 129 Timer Operation Panel 130 Timer -Key lock box 140 Fingerprint input operation panel 141 Fingerprint recognition key lock box 144 Optical reader for fingerprint input 150 CPU 156 Fingerprint extraction circuit 157 Fingerprint matching circuit 158 Key lock control circuit 159 Hard disk 165 Original image data 166 Directional data 167 Characteristic pattern 170 Radio wave generator 171 Automatic lock release system box with radio wave generation mechanism 172 Radio wave 173 User 174 Radio wave detection device

Claims (10)

[Claims] 1. A shredder capable of retrieving a bundle of paper jams by rotating in a reverse direction, wherein a paper cutter that cuts the leading end portion of the bundle of papers that has been shredded halfway at the time of paper jam, and the paper cutter after cutting by the paper cutter. By reverse rotation,
A shredder, comprising: a transport roller for taking out a bundle of paper jams from a paper feed port in a non-shredded state. 2. A shredder capable of retrieving a paper bundle of a paper jam by rotating it in a reverse direction, when the paper bundle is separated in two directions centering on the leading end portion of the paper bundle shredded halfway during the paper jam. A roller for pulling the paper bundle in one direction, a separation bar for intervening in a joint portion of the paper bundles separated in two directions to promote separation of both paper bundles, the roller, the separation bar and the paper bundle A shredder characterized by having a movable paper-scattering prevention cover box for covering the upper and lower sides. 3. A shredder capable of retrieving a bundle of paper jams by rotating in a reverse direction, and a suction device for absorbing scraps of paper scraps that are generated when the bundle of paper jams taken out is separated by hand, and the suction device. A shredder having a suction hose for feeding the waste paper sucked by the device into a waste box. 4. A shredder having a waste box capable of accommodating shredded waste paper and taking it out from the shredder main body by an opening / closing door, each comprising an expansion spring attached to the waste box, a rotating cam and a roller tire. A shredder comprising: a vibrating mechanism; and a drive source that causes the scrap box to generate a vibrating motion to smooth paper waste accumulated therein by the rotation of the cam. 5. A shredder having a waste box capable of accommodating shredded waste paper and taking it out of the shredder body by means of an opening / closing door, wherein a pair of bottom surfaces provided at a raised position of the waste box and operating vertically. A member, and a gear mechanism for operating the pair of bottom members to smooth the accumulated paper waste by dropping the waste paper to the actual bottom surface of the waste box when the pair of bottom members are lowered. Shredder characterized by. 6. A shredder having a paper feeder for automatically feeding a paper bundle to be shredded, a movable cover box capable of covering a paper bundle input port of the paper feeder, and the paper bundle input port being the cover box. A shredder comprising: a magnetic card type locking means capable of locking the cover box and the paper feeder main body after being covered with the above; and a secret code collating means for unlocking. 7. A shredder having a paper feeder for automatically feeding a bundle of paper to be shredded, a movable cover box capable of covering a paper bundle inlet of the paper feeder, and an arbitrary time being set. A possible time setting means, the paper bundle insertion port is covered with the cover box, and according to the time setting by the time setting means, an automatic locking means for automatically locking the cover box and the paper feeder body, A shredder comprising: a timer for counting the time set by the time setting means; and a timer unlocking means for unlocking the key lock of the cover box and the paper feeder when the timer times out. 8. A shredder having a paper feeder for automatically feeding a bundle of shredded paper, a movable cover box capable of covering a paper bundle insertion port of the paper feeder, and a feature input for inputting user characteristics. Means, an automatic locking means for automatically locking the cover box and the paper feeder main body in response to a feature input of the feature input means after covering the paper bundle insertion opening with the cover box, For this purpose, the pattern recognition unlocking means for comparing and collating the characteristics of the user re-input to the characteristics inputting means and the characteristics of the user input last time and unlocking by matching the two characteristics are provided. Characterized shredder. 9. The shredder according to claim 8, wherein the characteristic of the user is a fingerprint. 10. A shredder having a paper feeder for automatically feeding a bundle of paper to be shredded, a movable cover box capable of covering a paper bundle insertion port of the paper feeder, and a bundle of paper set on the paper feeder. , An automatic locking means for automatically locking the cover box and the paper feeder main body in response to covering the paper bundle insertion port with the cover box, and shredding of the paper bundle set in the paper feeder Detecting means for detecting the shredding, an automatic unlocking means for automatically unlocking in response to the detection of the shredding end by the detecting means, and a notification of the shredding end in response to the detection of the shredding end by the detecting means. A shredder having a communication means for generating a radio wave for notifying a user.