JP3876203B2 - Hard disk destruction device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a destruction device for a hard disk drive device for reliably destroying data recorded on a hard disk (magnetic recording medium) when discarding a computer that is no longer needed.
[0002]
[Prior art]
In recent years, the data and software to be processed has been increasing year by year, and it has become necessary to increase the processing speed and the capacity of the hard disk. Yes. At that time, the data left on the computer's hard disk to be discarded is “emptied the recycle bin” or “initialized the hard disk” and disposed of as trade-in or industrial waste without the computer recognizing the data. Is done. In the “empty trash” process and “initialization of the hard disk”, the head bit corresponding to the table of contents of the data is simply changed so that the computer cannot recognize it, and there is no function to actually erase the data on the hard disk. Therefore, these data portions remain in their original positions unless new data is overwritten.
[0003]
Data that seems to have been erased at first glance after this "Empty Recycle Bin" process or "Initialization of Hard Disk" can be easily recovered with recovery software that recovers data that was accidentally deleted. For this reason, there is a risk of data leaking or leaking from the discarded hard disk of a computer, and a method for reliably erasing data on the hard disk has been required.
[0004]
The following four methods can be cited as conventional hard disk data erasing methods.
(1) Software method
What erases data on the hard disk by software is a method in which new data is overwritten on the disk three to seven times so that the residual magnetism of the original data is not left. This is because a small amount of original data magnetism remains in one writing, and this data can be restored, so that three to seven writes are required. Normally, it takes about 1 minute to write once per 1 GB. Therefore, if new data is written 7 times on a 40 GB hard disk, it takes 280 minutes. When there are a large number of computers to be discarded, there is a problem that enormous work time is required.
[0005]
(2) A method of batch erasing by applying a strong magnetic field
In this method, in order to erase hard disk data in a short time, only the hard disk drive is taken out from the computer, and a strong magnetic field of about 6000 gauss is applied to the entire hard disk drive to magnetize the entire disk surface in the same direction. This is a method of erasing data in a short time. Since this method applies a strong magnetic field exceeding the write magnetic field of the magnetic head, even the servo data of the hard disk control signal is erased. Therefore, if the hard disk data is erased by this method, the computer cannot recognize the hard disk. However, uneven erasure of data or a plurality of discs in the same case may remain unerased discs. These hard disks cannot be confirmed or verified by completely erasing data, only by the computer not recognizing the hard disk drive. Therefore, it is difficult to use when it is necessary to completely erase important data.
[0006]
(3) Method of direct destruction with a hammer
In this method, only the hard disk drive is taken out from the computer, and the internal disk is destroyed by hitting it with a hammer from above the case of the hard disk drive. However, when the core material of the disk is aluminum, it is difficult to destroy all of the disks built in a plurality of disks even if a pin hammer or a large hammer and chisel are used. When the disk core material is glass, the disk can be destroyed by hitting the hard disk drive case with a hammer with relative ease. However, in this method, only a part of a plurality of built-in disks is destroyed, and an intact disk may remain. Therefore, in this hard disk destruction method using a hammer, it is necessary to open the hard disk drive and confirm that the built-in disk has been transformed into a state in which data cannot be read or has been completely destroyed. Opening the hard disk drive requires time and a skilled worker because it requires a special screwdriver to find and remove the hidden screw. In addition, this work is very dangerous work such as injury.
[0007]
(4) Drilling a hole
This method is a method of drilling a hole in the disk portion of the hard disk drive. However, in this method, in the case of an aluminum disk, a small drill hole has little distortion on the disk surface, and if there is little distortion, it can be rotated and read again. It is necessary to make several large holes. This operation is very dangerous because a large hole is directly drilled in the case of the hard disk drive device having a complicated internal structure.
[0008]
[Problems to be solved by the invention]
Data leakage of a discarded computer hard disk is caused by incomplete data erasure. However, the number of computers that are replaced and discarded for capacity improvement year by year is enormous. The storage capacity of the hard disk is also increasing year by year, and the erasure by the software (1) requires a long time. Further, the method (2) of erasing the magnetic storage of the disk in a short time using the strong magnetic force is ineffective for the purpose of data leakage unless it can be confirmed and verified that the data has been securely erased. And the method of physically destroying the case of the hard disk drive device by the hammer or drill of (3) and (4) above is a very dangerous work, and in order to confirm the complete destruction of the built-in disk, Troublesome work such as opening the case is necessary.
[0009]
The present invention has been made in view of the above problems, and in order to prevent data leakage of a large amount of a hard disk of a computer to be discarded, a person who has used the computer without carrying it to another place. Under the control of the hard disk, the hard disk can be destroyed in a safe manner in a short time and easily, and this can be confirmed visually, and it is possible to confirm that the hard disk data cannot be read. The object is to provide a destruction device.
[0010]
[Means for Solving the Problems]
According to the present invention, a storage case for storing the hard disk drive to be destroyed and a cover for enclosing the storage case are provided on the base, and a cylinder driven by a pressure source is attached to the cover. A hard disk breaking device characterized in that a punch head for breaking the hard disk by forming a through hole at a plurality of locations by moving the piston rod back and forth toward the broken hard disk drive device at the tip is provided.
[0011]
A plurality of punch heads may be provided at the tip of the piston rod to simultaneously form through holes at a plurality of locations to destroy the hard disk, or the storage case of the hard disk drive to be destroyed is moved on the base. A moving means may be provided and through holes may be formed at a plurality of locations by advancing and retreating the piston rod a plurality of times to destroy the hard disk.
By adopting such a configuration, through holes can be formed at a plurality of locations along the entire housing case of the hard disk drive device while moving the hard disk drive device and adjusting the through hole formation position without complicated operations such as opening the case. Further, by making it portable, it is possible to perform work in front of the computer administrator and eliminate the possibility of information leakage.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIGS. 1A, 1B, and 2 show the configuration of a hard disk breaking device according to the present invention, a cross-sectional view seen from the front, a cross-sectional view seen from the side, and a cross-sectional view seen from the top. It is.
In these figures, the main body 10 of the hard disk breaking device is provided with a main body cover 12 having an open front at the top of a base 11, and a cylinder 13 is provided penetrating downward substantially at the center of the top plate of the main body cover 12. . A pressure source 30 is connected to the cylinder 13, and hydraulic pressure, water pressure, air pressure, or the like is supplied from the pressure source 30. The penetration pressure required to form a through hole for breaking a hard disk is about 1 ton for a 3.5 inch hard disk and about 0.5 ton for a 2.5 inch hard disk. As long as the pressure source can be supplied, any device such as a mechanical device in addition to hydraulic pressure, water pressure, and air pressure may be used.
[0013]
The cylinder 13 is held with sufficient mechanical strength by a back column 16 of the back plate portion inside the cover 12, a cylinder holding member 15 of the top plate portion, and a reinforcing member 17 such as a brace. A punch head 14 connected to the piston rod 9 is provided below the cylinder 13 so as to be able to advance and retract. The punch head 14 has a stepped burring punch with a stepwise small diameter as shown in FIG. 3 (a), as well as a straight punch (14) as shown in FIG. (14) can be used. The material is made of cemented carbide or the like and has a diameter of 8 to 10 mm and a length of about 72 mm. Either of them can be used to destroy the hard disk drive, but the burring punch of (b) can be broken through with a smaller pressure than the straight punch of (a).
Also, a straight punch (14) with a blade (14c) formed at the tip of a straight punch as shown in (c), and a blade with a blade (14d) formed at the tip of a burring punch as shown in (d) By using the burring punch (14), it is possible to penetrate with a smaller pressure. This is important for reducing the size and weight of the cylinder 13 and its pressure source 30 in order to reduce weight.
[0014]
A hard disk drive storage case 20 is provided on the base 11 below the punch head 14. The hard disk drive storage case 20 is sized to accommodate, for example, a 3.5-inch hard disk drive 33, and a slide rail 21 provided on the lower surface is fitted in a groove 8 formed on the upper surface of the base 11, And it has the structure which can move to the left-right direction of Fig.1 (a) and FIG. 2 with the air cylinder 19 provided in the side. The base 11 below the punch head 14 is provided with a punch through hole 22, and a dust case 23 is provided below the punch through hole 22.
[0015]
In addition, fixing legs 24 are provided at the four lower corners of the base 11, and moving casters 25 are provided inside the respective legs 24. Further, a front door 18 with a handle 31 is provided at the front opening portion of the cover 12 so as to be opened and closed by a hinge 7 or the like. Further, a front door switch 28 that turns on and off at the corners of the upper surface of the base 11 in accordance with the opening and closing of the front door 18, and two start switches 26 on both sides of the main body cover 12 on the front front side of the upper surface of the base 11. 27, and the system is operated only by pressing the front door switch 28 and the two start switches 26, 27 at the same time, thereby improving safety.
[0016]
The hard disk drive storage case 20 has a size that can store the 3.5-inch hard disk drive 33 shown in FIGS. 5A-1 and 5A-2, and FIG. When the small 2.5-inch hard disk drive 43 shown in (b-2) is accommodated, an adapter 51 described later is interposed.
[0017]
First, details of the 3.5 inch size hard disk drive 33 and the 2.5 inch size hard disk drive 43 will be described.
The 3.5-inch inch hard disk drive 33 is covered with a casing case (represented by one line in the drawing) having a size of about 102 mm × 145 mm × 25 mm, and the built-in 3.5-inch disk 34. Is about 95 mm in diameter. The 3.5 inch disk 34 is connected to a motor 36 by a disk holding bracket 35. In the example of FIG. 5, there are two 3.5-inch disks 34, but there are one and three or more. The motor 36 connected to the 3.5 inch disk 34 is attached to a chassis 37, and a circuit board 41 is provided below the chassis 37. In addition, a signal connector 38 and a power connector 39 are provided at one end of the housing case. Data read by the magnetic head 40 is output from the signal connector 38 or data from the outside is output to the magnetic head 40. Communicate and write.
[0018]
Similarly, the 2.5-inch inch hard disk drive 43 is covered with a case having a size of about 70 mm × 100 mm × 12 mm, and the built-in 2.5-inch disk 44 has a diameter of about 65 mm. . The 2.5 inch disk 44 is connected to a motor 46 by a disk holding bracket 45. In the example of FIG. 5, two 2.5 inch disks 44 are fixed, but there are one and three or more. The motor 46 connected to the 2.5 inch disk 44 is attached to a chassis 47, and a circuit board 50 is provided below the chassis 47. A signal connector 48 is provided at one end of the housing case. Note that the 2.5-inch hard disk drive device 43 is not provided with a power connector but is provided with only a signal connector 48. Data read by the magnetic head 49 is output from the signal connector 48, and data from the outside is transmitted to the magnetic head 49 for writing.
[0019]
As described above, there are mainly hard disk drive devices 33 of 3.5 inch size and 43 of 2.5 inch size, but the hard disk drive storage case 20 has 3.5 inch and 2 inch. It is configured to support both 5 inch disks. Further, the materials constituting the disks 34 and 44 include those made of an aluminum material and those made of a glass material. According to the apparatus of the present invention, whichever material is used regardless of the material difference. It is possible to reliably destroy the disk formed in the above-described state so that it cannot be read. In the case of an aluminum disk, the punch head 14 forms a through hole in a burring shape so that the disk cannot be rotated and cannot be read, and in the case of a glass disk, the disk itself is completely made by the punch head 14 through pressure. To make it unreadable.
[0020]
Next, the hard disk drive storage case 20 will be described with reference to FIG.
The hard disk drive storage case 20 has a box shape with a low height, and as shown in FIG. 6 (b), the front side is open and cutouts 6 are formed on both sides. The size of the part is slightly larger than that of the 3.5-inch hard disk drive 33, and the hard disk drive 33 is inserted from here. An identification connector 32 of the hard disk drive device is provided at a position corresponding to the power connector 39 when the 3.5-inch hard disk drive device 33 is inserted in the inner back of the hard disk drive storage case 20. . The device of the present invention operates only when it is recognized that the hard disk drive has been inserted by connecting these connectors 39, 32, and the device of the present invention operates when it is not recognized by the identification connector 32. It is the structure which gives safety so that it may not. In the hard disk drive storage case 20, a punch head penetration window 42 of about 15 × 80 mm is opened in the top plate portion and the bottom plate portion corresponding to the disk 34, and the punch head 14 is passed through the punch head penetration window 42. However, the stored hard disk drive is broken through from the top to the bottom together with the housing case.
[0021]
In addition, a slide rail 21 is provided below the hard disk drive storage case 20, and the slide rail 21 is fitted in a groove 8 formed on the base 11, and the piston rod 56 of the air cylinder 19. Move the storage case to the left and right to determine the destruction position. Since the distance moved by the air cylinder 19 is required by the distance between at least two through holes, the length of the piston rod 56 is about at least 3.5 inches between the through holes (about 65 mm).
[0022]
FIG. 7 shows an adapter 51 for a 2.5 inch hard disk drive. Since the hard disk drive storage case 20 is sized to match the 3.5 inch hard disk drive 33, a smaller 2.5 inch hard disk drive 43 is directly attached to the hard disk drive storage case 20. Even if it is inserted, the internal position is not fixed, and a through hole cannot be formed at a fixed position. Therefore, a 2.5 inch size hard disk drive adapter 51 shown in FIG. 7 is used.
[0023]
The external dimensions of the adapter 51 for the 2.5 inch hard disk drive device are substantially the same as those of the 3.5 inch hard disk drive device 33, and a fitting for fitting the 2.5 inch hard disk drive device 43 therein. A recessed recess 55 is formed. The fitting recess 55 is formed in the 3.5 inch hard disk drive 33 and the 2.5 inch hard disk drive 43 so that the positions of the first through holes are the same. Further, the punch head penetration window 54 is formed so as to have the same positional relationship as the punch head penetration window 42 provided in the hard disk drive storage case 20.
[0024]
A signal terminal extraction connector 53 is provided at a position corresponding to the signal connector 48 of the 2.5-inch hard disk drive device 43 in the inner part of the insertion recess 55 to extract a specific terminal necessary for identification. . Specifically, the signal connector 48 of the 2.5-inch hard disk drive device 43 is a 44-pin connector, of which the ground terminal portions that are short-circuited inside, for example, the 22, 24, and 26-pins are short-circuited to each other. These are ground terminals, and two of them are extracted. The two extracted ground terminals are connected to the first and third pins of the 3.5-inch hard disk drive compatible connector 52 corresponding to the position of the power connector 39 of the 3.5-inch hard disk drive 33. The When the 2.5-inch hard disk drive 43 is destroyed, the distance that the hard disk drive storage case 20 is moved by the air cylinder 19 is about the interval between the through holes (about 43 mm) at 2.5 inches. .
[0025]
FIG. 8 is a connection diagram of the identification circuit by the identification connector 32 of the hard disk drive and the safety device by the two start switches 26 and 27 and the front door switch 28.
In the case of the 3.5 inch hard disk drive 33, the power connector 39 is connected to the identification connector 32 of the hard disk drive, and in the case of the 2.5 inch hard disk drive 43, the connector 52 of the adapter 51 is connected. Is connected.
The power connector 39 of the 3.5-inch hard disk drive 33 has a + 12V terminal at pin 1, a ground terminal at pins 2 and 3, a + 5V terminal at pin 4, and a ground at pins 2 and 3. Since the terminals are short-circuited to each other, when they are connected to the identification connector 32, the second and third pins of the identification connector 32 are connected.
In the case of the 2.5-inch hard disk drive 43, the connector 52 of the adapter 51 is a ground terminal in which the first pin and the third pin are short-circuited as described above. The first and third pins of the identification connector 32 are connected.
[0026]
Here, as shown in FIG. 8, the identification circuit of the present invention is connected to the third pin of the identification connector 32 via one start switch 26 at one end of the power source 57 and connected to the other end of the power source 57 at the other end. The start switch 27, the front door switch 28, and the 2.5 inch relay circuit 58 are connected in series and connected to the first pin of the identification connector 32. Further, a 3.5 inch relay circuit 59 is connected between the connection point of the front door switch 28 and the 2.5 inch relay circuit 58 and the second pin of the identification connector 32. Here, the relay circuit 59 is a circuit that outputs a 3.5-inch identification signal and a cylinder pressurization start signal when the 3.5-inch size hard disk drive 33 is inserted. This circuit outputs a 2.5 inch identification signal and a cylinder pressurization start signal when the inch size hard disk drive 43 is inserted.
[0027]
FIG. 9 shows the adjustment of the moving distance of the hard disk drive storage case 20 and the addition of the cylinder 13 based on the 3.5 inch identification signal or 2.5 inch identification signal from the identification circuit and the cylinder pressurization start signal. It is the figure which showed the sequence control circuit 60 which controls a pressure.
[0028]
The operation of the above configuration will be described.
In FIG. 11, when the front door 18 is opened with the handle 31 and the 3.5-inch hard disk drive 33 is stored in the hard disk drive storage case 20 at t1, the space between the second and third pins of the identification connector 32 is Short circuit. When the front door 18 is closed at t2, the front door switch 28 is closed. When both start switches 26 and 27 are pressed at t3, a closed circuit passing through the relay circuit 59 is formed, and the power source 57 is supplied to the relay circuit 59. Then, a 3.5 inch identification signal and a cylinder pressurization start signal are output from the relay circuit 59 to the sequence control circuit 60, respectively.
[0029]
Similarly, when the 2.5-inch hard disk drive 43 is inserted through the adapter 51, the first and third pins of the identification connector 32 are short-circuited, and a closed circuit passing through the relay circuit 58 is formed. Then, the power source 57 is supplied to the relay circuit 58. Then, a 2.5 inch identification signal and a cylinder pressurization start signal are output from the relay circuit 58 to the sequence control circuit 60, respectively.
The moving distance of the hard disk drive storage case 20 is selected based on these identification signals. At the time of the first destruction operation at the original position, the stored hard disk drive is 3.5 inches or 2. Regardless of whether it is 5 inches or so, the location of the hard disk drive storage case 20 is not moved because it is the same location.
[0030]
When a 3.5 inch identification signal or a 2.5 inch identification signal is input to the sequence control circuit 60 and a cylinder pressurization start signal is input, a cylinder pressurization signal is sent to the pressure source 30 at t4. The pressure is applied to pressurize the cylinder 13, and when the pressure in the cylinder 13 reaches a predetermined value or more, the punch head 14 descends and passes through the through-hole 42 in the top plate portion, and the first through-hole is opened. Further, as shown in FIG. 5 (a-3) or (b-3), the disk is broken by descending until it penetrates the through window 42 in the bottom plate portion of the hard disk drive storage case 20. After the hard disk is destroyed, at t5, the pressure of the cylinder 13 is reduced, and the punch head 14 is raised to return to the original position.
[0031]
After the first through hole is opened, the hard disk drive storage case 20 is moved, and at t6, the moving distance is determined by the 3.5 inch identification signal or the 2.5 inch identification signal, and the hard disk drive device A storage case movement signal is output to the electromagnetic valve 62. The electromagnetic valve 62 outputs the compressed air from the compressed air input unit 61 to the air cylinder 19 and operates the piston rod 56 of the air cylinder 19. As a result, the piston rod 56 of the air cylinder 19 operates to move the hard disk drive storage case 20 by a target distance. Specifically, in the case of 3.5 inches, it is moved 65 mm, and in the case of 2.5 inches, it is moved 43 mm.
[0032]
When the piston rod 56 moves to the target position, a position signal (65 mm position signal, 43 mm position signal, origin signal) is input from the air cylinder 19 to the sequence control circuit 60, and at time t7 when this signal has reached the target movement distance. Again, a cylinder pressurization signal is output to the pressure source 30 to pressurize the cylinder 13, and when the pressure in the cylinder 13 reaches a predetermined value or more, the punch head 14 descends and a second through hole is formed. It can be opened and destroys the disc. When the destruction is completed, at t8, the pressure of the cylinder 13 is reduced, and the punch head 14 is raised and returned to the original position. After the second through hole is opened, a hard disk drive storage case movement signal is output to the electromagnetic valve 62, and the piston rod 56 of the air cylinder 19 is operated by this signal. At t9, the hard disk drive storage case 20 is returned to the home position.
[0033]
At t10, the two start switches 26 and 27 are turned off, and at t11, the front door 18 is opened, the switch 28 is turned off, and the destroyed hard disk drive 33 or 43 is removed. These broken hard disk drive devices 33 or 43 make the hard disk unreadable by forming two through holes. That is, in the case of an aluminum disc, the punch head 14 forms a through hole in a burring shape so that the disc cannot be rotated and cannot be read. In the case of a glass disc, the disc itself is controlled by the penetrating pressure of the punch head 14. Is made unreadable by crushing completely.
[0034]
The main body of this apparatus is about 400-600 mm wide, about 400-600 mm deep, about 400 mm high, and weighs about 35 kg, and is lightweight and compact. Can be taken to the computer administrator and used in front of you to destroy the hard disk drive. In general, when important information is stored in a hard disk or the like, it is determined that there is a suspicion of information leakage at the time of leaving the computer administrator. However, if the computer administrator himself / herself confirms the location of destruction in front of him, there is no suspicion of information leakage, and the destruction will be more reliable.
[0035]
In the above embodiment, one punch head 14 is attached to the tip of the cylinder 13 and the hard disk drive storage case 20 is moved by the air cylinder 19 while two through holes are formed. It is not limited. For example, as shown in FIG. 10 (a), two punch heads 14 are attached to the lower end portion of the piston rod 9 with a bifurcated head attachment 5 at a predetermined interval, or as shown in FIG. 10 (b). Further, three punch heads 14 are formed at a predetermined interval with a three-pronged head attachment 5 interposed at the lower end of the piston rod 9, and two or three through holes are formed at a time using the punch heads 14. You may make it do.
In order to make such a configuration, a larger penetrating pressure is required than in the case of one, so that the cylinder 13 and the pressure source 30 need to be large in size, and the weight becomes heavy. Since the through hole can be formed, the working efficiency is increased. In this case, the punch heads 14 are prepared for 3.5 inches and 2.5 inches, respectively, and after one operation is continuously performed, the operation is switched to the other operation. Further, the air cylinder 19 and other mechanisms for moving the hard disk drive storage case 20 by the air cylinder 19 can be omitted.
[0036]
In the above embodiment, the hard disk drive has been described as a device that destroys, but the present invention can be applied to other storage media by the same method.
[0037]
【The invention's effect】
  According to the first aspect of the present invention, a storage case for storing the hard disk drive to be destroyed and a cover surrounding the storage case are provided on the base, and a cylinder driven by a pressure source is attached to the cover. Since the piston rod of this cylinder is provided with a punch head for breaking the hard disk by forming a through hole at a plurality of positions by moving the piston rod back and forth toward the hard disk drive to be destroyed, the case The hard disk drive can be destroyed without complicated operations such as opening the hard disk.
  Also, a safety switch is provided on the base and the cover, and a connector for connecting to a specific terminal of the hard disk drive device is provided inside the hard disk drive device storage case. When the signal indicating the type was derived, a hard disk identification signal and a cylinder pressurization start signal were output to form a through hole in the hard disk to destroy it. be able to.
[0038]
According to the second aspect of the present invention, since the plurality of punch heads for destroying the hard disk by simultaneously forming through holes at a plurality of locations at the tip of the piston rod are provided, The hard disk drive can be destroyed efficiently.
[0039]
According to a third aspect of the present invention, there is provided a moving means for moving the storage case of the to-be-destructed hard disk drive device on the base, and through holes are formed at a plurality of positions by advancing and retreating the piston rod a plurality of times to form the hard disk. Since it was designed to be destroyed, the type of the hard disk drive was identified, and the hard disk drive was moved according to the type to adjust the through hole formation position, and through holes were formed at multiple locations on the hard disk drive to destroy it. can do.
[0041]
  Claim4According to the described invention, when the hard disk identification signal and the cylinder pressurization start signal are input, the cylinder pressurization signal is output to the pressure source and the control signal of the moving means for moving the position of the storage case on the base Since it has a sequence control circuit that outputs, it can be destroyed efficiently and safely with little human intervention.
[0042]
  Claim5According to the described invention, the hard disk drive storage case is sized to accommodate a 3.5 inch hard disk drive, and when the 2.5 inch hard disk drive is inserted, the 3.5 inch hard disk drive is inserted. Since the adapter for a 2.5 inch hard disk drive having substantially the same shape as that of the device is used, both the 3.5 inch hard disk drive and the 2.5 inch hard disk drive can be supported.
[0043]
  Claim6According to the described invention, since the caster is attached to the lower part of the main body case to make it portable, the work can be performed in front of the computer administrator, and the possibility of information leakage can be eliminated.
[Brief description of the drawings]
1 shows an embodiment of a hard disk breaking device according to the present invention, in which (a) is a cross-sectional view taken along the line aa of FIG. 2 as viewed from the front, and (b) is b of FIG. 2 as viewed from the side. It is -b sectional drawing.
FIG. 2 is a cross-sectional view of the hard disk breaking device in FIG.
FIGS. 3A and 3B show a punch head for forming a through hole, wherein FIG. 3A is a straight punch, FIG. 3B is a burring punch, FIG. 3C is a straight punch with a blade, and FIG. 3D is a burring punch with a blade. It is the one part front view and bottom view.
FIG. 4 is a cross-sectional view seen from the front showing a state in which the hard disk drive device is destroyed using the hard disk destruction device according to the present invention.
FIG. 5 shows a hard disk drive that can be destroyed in the present invention. (A-1) is a plan view showing a 3.5-inch hard disk drive, and (a-2) is 3.5. A front view showing an inch-size hard disk drive, (a-3) is a front view showing a state in which a through hole is formed in a 3.5-inch hard disk drive and destroyed, and (b-1) is a front view. FIG. 5B is a plan view showing a 2.5 inch size hard disk drive; FIG. 5B is a front view showing the 2.5 inch size hard disk drive; FIG. It is the front view which showed a mode that the through-hole was formed and destroyed in the apparatus.
6A and 6B show a storage case for a hard disk drive, where FIG. 6A is a cross-sectional view seen from the front, FIG. 6B is a cross-sectional view seen from the top, and FIG.
7A and 7B show an adapter for a 2.5-inch hard disk drive device, where FIG. 7A is a plan view and FIG. 7B is a cross-sectional view as viewed from the side.
FIG. 8 is a circuit diagram showing a configuration of an identification circuit using an identification connector and a safety switch.
FIG. 9 is a block diagram showing a configuration of a sequence control circuit.
FIG. 10 is a perspective view showing another embodiment of the punch head.
FIG. 11 is an operation waveform diagram of a sequence.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 5 ... Head fixture, 6 ... Notch, 7 ... Hinge, 8 ... Groove, 9 ... Piston rod, 10 ... Hard disk destruction device main body, 11 ... Base, 12 ... Cover, 13 ... Cylinder, 14 ... Punch head, 15 ... Cylinder holding member, 16 ... back column, 17 ... reinforcing member, 18 ... front door, 19 ... air cylinder, 20 ... hard disk drive storage case, 21 ... slide rail, 22 ... punch through hole 22, 23 ... dust case, 24 ... Leg, 25 ... Caster, 26 ... Start switch, 27 ... Start switch, 28 ... Front door switch, 29 ... Hose, 30 ... Pressure source, 31 ... Handle, 32 ... Connector for identification, 33 ... 3.5 inch size Hard disk drive, 34 ... 3.5 inch disk, 35 ... disk holding bracket, 36 ... motor, 37 ... chassis, 38 ... No. connector, 39 ... Power connector, 40 ... Magnetic head, 41 ... Circuit board, 42 ... Punch head penetration window, 43 ... 2.5 inch hard disk drive, 44 ... 2.5 inch disk, 45 ... Disk holding bracket 46 ... Motor, 47 ... Chassis, 48 ... Signal connector, 49 ... Magnetic head, 50 ... Circuit board, 51 ... Adapter for 2.5 inch size hard disk drive, 52 ... Connector for 3.5 inch size hard disk drive, 53 ... Signal terminal extraction connector, 54 ... Punch head penetration window, 55 ... Insertion recess, 56 ... Piston rod, 57 ... Power source, 58 ... Relay circuit, 59 ... Relay circuit, 60 ... Sequence control circuit, 61 ... Compressed air Input part, 62 ... Electromagnetic valve.

Claims (6)

On the base, a storage case for storing the hard disk drive to be destroyed and a cover for enclosing the storage case are provided, and a cylinder driven by a pressure source is attached to the cover. A punch head for breaking the hard disk by forming the through holes at a plurality of positions by moving the piston rod forward and backward toward the hard disk drive to be destroyed is provided, and a safety switch is provided on the base and the cover, and the hard disk drive is provided. A connector for connecting to a specific terminal of the hard disk drive device is provided inside the storage case, and when the signal of the safety switch and the signal indicating the type of the hard disk drive device from the connector are derived, the hard disk identification signal Output a cylinder pressurization start signal and hard disk Destruction device such as a hard disk, characterized in that so as to destroy by forming a through hole.   2. The hard disk breaking device according to claim 1, wherein a plurality of punch heads for simultaneously breaking through the hard disk by forming through holes at a plurality of locations at the tip of the piston rod are provided.   Claims characterized in that there is provided moving means for moving the storage case of the hard disk drive to be destroyed on the base, and the hard disk is broken by forming through holes at a plurality of locations by advancing and retreating the piston rod multiple times. Item 1. A hard disk destruction apparatus according to item 1. A sequence control circuit that outputs a cylinder pressurization signal to the pressure source when a hard disk identification signal and a cylinder pressurization start signal are input, and also outputs a control signal for moving means for moving the storage case on the base. 4. The hard disk destruction apparatus according to claim 1, 2 or 3 , further comprising: The hard disk drive storage case is sized to accommodate a 3.5 inch hard disk drive. When a 2.5 inch hard disk drive is inserted, the hard disk drive storage case is substantially the same shape as the 3.5 inch hard disk drive. 4. The hard disk destruction device according to claim 1, wherein an adapter for a 5-inch hard disk drive device is used. Breaking device according to claim 1, 2, 3, 4 or 5, wherein the hard disk by attaching a caster at the bottom of the base, characterized in that the portable.

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