JP2005085412A - Destructive device of hard-disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a destructive device of a hard-disk device, in which a disk is perfectly destroyed such that data reading is completely impossible after disposal, and the destruction of data is recognized at first sight, and working efficiency of the disk destruction is improved. <P>SOLUTION: In a configuration, a hard-disk device 2 is crushed down together with a chassis 3 thereof by pressing means, and a magnetic disk 4 in the hard-disk device 2 is deformed so that remained data are unreadable, in addition, the pressing means has a pressing head 32 disposed movably in a vertical direction and a holder 40 disposed below the head, and several protrusions 38, 46 having roundish ends are disposed on end-faces of the pressing head 32 and the holder 40 respectively with an interval, and both the protrusions 38, 46 are disposed with being out of phase so that they do not interfere with each other, and the pressing head 32 and the holder 40 pinch the hard-disk device to press and destroy the device. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hard disk device destruction device. In particular, when disposing of a hard disk device, the hard disk device is crushed together with a housing in which the magnetic disk and other hard disk device components are arranged and the magnetic disk cannot be read. The present invention relates to a destructive device for a hard disk device that is deformed.

  When discarding a hard disk device or a personal computer using the hard disk device, information (data) recorded on the hard disk device is usually erased by operating the personal computer. However, since it is possible for a person having a certain technique to read data even after such erasure processing, such erasure processing is not sufficient.

    Therefore, it is conceivable to break the magnetic disk, which is a data recording location, by drilling it with a drill or the like, or mechanically dividing the magnetic disk into several parts.

However, in the former method, the flat portion of the magnetic disk remains other than the perforated portion, so that the data in that portion can be read, and in the latter method, the rotation axis of the magnetic disk before destruction is divided into pieces of the magnetic disk. It is said that the partial data recorded in the divided pieces can be read if they are arranged concentrically with each other, and there is a problem that it is not sufficient from the viewpoint of confidentiality and industrial spy prevention. In addition, the former method has a problem in that work efficiency is poor because a large number of holes must be drilled. Further, it is conceivable to apply a data destruction paint on the recording surface of the disk as in the data destruction apparatus of the optical disk disclosed in JP-A-9-97432. However, it is difficult to confirm whether or not the data destruction has been completely performed. There was a point.
JP-A-9-97432

  The problems we are trying to solve are that the data destruction such as data loss or data unreadable is not enough, it is hard to recognize whether the data destruction is complete at first glance, and the work of disk destruction The efficiency is not good.

The present invention is configured as follows.
A When destroying a hard disk device, the hard disk device is crushed by the pressing means together with the housing on which the magnetic disk, magnetic head, and other components of the hard disk device are arranged, and the magnetic disk is deformed so that the remaining data cannot be read. The pressing means is provided with a pressing head provided so as to be movable up and down, and a cradle provided below the pressing head, and on a lower end surface portion of the pressing head and an upper end surface portion of the cradle. The protrusions with rounded tips are spaced apart, and the protrusions of the pressing head and the cradle are shifted so that the axes do not overlap or interfere with each other. Hard disk arranged and configured to be pressed and destroyed with the hard disk device sandwiched between the pressing head and the cradle Location of the destruction device.
B When destroying a hard disk device, the hard disk device is crushed by the pressing means together with the housing on which the magnetic disk, magnetic head, and other components of the hard disk device are arranged, and the hard disk device is destroyed so that the remaining data cannot be read. The pressing means includes a pressing head provided so as to be movable laterally or obliquely in an up-down direction, and a cradle provided at a position opposite to the moving direction of the pressing head, and the pressing head and the receiving device. In the base, a plurality of protrusions with rounded tips are spaced apart from the end face on the side facing the opponent, and the axis of the protrusion of the pressing head and the protrusion of the receiving base do not overlap each other. So that the hard disk device is sandwiched between the pressing head and the cradle. Hard disk device destruction device that is configured to be destroyed.
In the breaking device of the hard disk device according to the item A or B, the pressing means is provided with a pressing head attached to a tip of a rod provided so as to be able to reciprocate vertically, laterally or obliquely vertically A destructive device for a hard disk device in which a cradle is provided in a fixed position at a position opposite to the moving direction of the head, and each protrusion of the pressing head and the cradle has a hemispherical shape.
Here, “destruction of the hard disk device” means that information (data) recorded due to damage or deformation of the magnetic disk of the hard disk device is made unreadable.

The hard disk device destruction apparatus of the present invention has the following effects.
A pressing head having a plurality of rounded protrusions on the end surface, and a pedestal, are pressed by sandwiching the hard disk device together with the casing, and the protruding portion of the pressing head and the protruding portion of the pedestal do not interfere with each other. In other words, the phase of the magnetic disk, which is the location where data is stored, is deformed with irregularities in a state where no flat surface remains, and data reading becomes impossible everywhere and can be read. No part remains. Further, since the hard disk device is pressed and destroyed, there is an advantage that the work efficiency is improved as compared with the case where the hard disk device is broken by drilling with a drill or the like. Furthermore, the destruction of the hard disk device is performed by pressing between the pressing head and the cradle, and the tip of each protrusion is rounded. Therefore, as shown in FIG. Since the manufacturing label 6 describing the necessary items such as the manufacturing number and serial number attached to the housing 3 forming the outer shell 2 remains to the extent that it can be read even after the hard disk device 2 is destroyed, the state before and after the destruction is produced. Recording with a photograph or the like so that the label 6 can be inserted has an advantage that the requester of disposal of the hard disk device can recognize (or infer) that the hard disk device related to the request has been completely destroyed. On the other hand, when drilling or crushing into small pieces, the manufacturing label may become unreadable or scattered. It is difficult to achieve the effects as in the present invention.

  The hemispherical protrusion is shaped like a circle with the objectives of complete disc destruction, the purpose of recognizing that the disc has been destroyed at first glance, and the purpose of improving the work efficiency of disc destruction. The hard disk device is sandwiched between the pressing head disposed in the base and the cradle in which the hemispherical protrusions provided even if the phase is shifted so as not to interfere with the hemispherical protrusions are similarly arranged in a circle shape. It was realized with a simple configuration of pressing and destroying.

  FIG. 1 is a schematic explanatory diagram of an embodiment of the apparatus of this embodiment. In the figure, reference numeral 10 denotes a machine base of the present invention, and structural members 12 and 14 arranged on both sides are connected by plate members 16 and 18 having a predetermined width at the upper end and the lower end, respectively, to form a square frame member. In addition, another similar frame material is arranged behind the frame material (the back side of the drawing), and both frame materials are integrally connected by connecting plates 20 and 22 at the upper end portion and the lower end portion, respectively. A connecting plate 24 is arranged in the horizontal direction at the intermediate portion in the height direction of each frame member, both ends of the front and rear connecting plates 24 are connected by connecting plates 25, and both connecting plates 24 are in a horizontally mounted state. Are connected by a substrate 26 attached thereto, and are similarly connected by connecting plates 29 between both ends of both lower plate members 18, thereby constituting the machine base 10.

  A hydraulic cylinder device 28 is disposed downward at the upper end of the machine base 10, and a pressing head 32 is attached to the tip of the piston rod 30 projecting downward so that it can reciprocate up and down. Reference numeral 34 denotes a tension spring, one end of which is attached to the machine base 10 and the other end is suspended by a spring suspension member 36 fixed near the tip of the piston rod 30 so that the pressing head 32 always moves upward. It is so energized. As shown in FIGS. 2 (a) and 2 (b), the pressing head 32 has four hemispherical protrusions 38 at the lower end face part at four equal positions of a circle having a diameter D around the point P. Is arranged. The center point P of the circle is located on the axial center line of the piston rod 30. In addition, it is also possible to use a hydraulic press machine as what attached the hydraulic cylinder apparatus to the machine base 10. FIG. It is of course possible to use a mechanical press machine.

  On the other hand, a cradle 40 is attached to the substrate 26 of the machine base 10. As shown in FIGS. 3 (a) and 3 (b), the cradle 40 is formed with a stepped recess 42 having a shallow depth at the periphery and a deeper depth at the inside, and the first step. The shallow part of the hard disk device has a substantially rectangular shape so that the housing 3 of the hard disk device can be fitted to a certain depth, and the deep part of the second stage is integrated by joining a square part to one end of the circular part. The circular portion having such an outer shape has an outer diameter somewhat larger than that of the magnetic disk, and four hemispherical protrusions are formed on the bottom surface of the circle having a diameter of D at the center and divided into four equal parts. 46 is arranged upward. The point Q is located on the same axis as the point P. Each of the protrusions 38 and 46 is provided at a position of a circumferential angle of 90 degrees on a circle having a diameter D, but as shown in FIG. 4 (a), one of the four protrusions 38 (indicated by a solid line) The relative position is determined so that the other four protrusions 46 (indicated by dotted lines) are located in the middle part (position at a circumferential angle of 45 degrees). The protrusion 46 is attached so that the center point Q of the circle is located substantially at the center of the magnetic disk in the hard disk device placed in the recess 42.

  In the embodiment apparatus configured as described above, the power is turned on and the hydraulic pump (not shown) is operated, and the hard disk device 2 to be destroyed shown in FIG. When it is placed so as to come to the (circular concave side), an operation box (not shown) is operated, a hydraulic valve (not shown) is switched, and the piston rod 30 of the hydraulic cylinder device 28 is lowered, the hard disk device 2 It is pressed by the hemispherical protrusion 38 of the pressing head 32 and the protrusion 46 of the cradle 40 and is destroyed as shown in FIG. The magnetic disk 4 is pressed from above and below as shown in FIG. 4 (b) by the protrusions 46 of the cradle 40 and the protrusions 38 of the pressing head 32, which are arranged in a circular shape, respectively, as shown in FIG. 5 (c). As shown, the projections and depressions are deformed, and the data cannot be read.

[Experimental example]
Using this example device, the hard disk device 2 was broken and the flatness of the deformed magnetic disk was measured. The measurement was performed by Tokushima Prefectural Industrial Technology Center. The measurement was performed using a flatness meter by selecting a place (location) that was considered to be the least deformed as a result of visual observation, but Table 1 was measured at a predetermined pitch within a predetermined range at a location A shown in FIG. Results are shown. In addition, the coordinate point is displayed with the coordinate value of the X-axis and the Y-axis. The measured value indicates the vertical distance from the reference point on the measurement surface, and the unit is mm (the same applies hereinafter). According to the measurement result, the flatness is 4.2 mm. Table 2 shows an example in which the measurement range is further narrowed at the same location of the disk. As a comparative example, Table 3 shows an example in which usable disks were measured within the same range as in Table 2 above.

Table 1 shows the result of measuring the broken magnetic disk at a position corresponding to the location A shown in FIG. According to the measurement result, the flatness is 4.2 mm.

Table 2 shows the results of measurement at a 0.1 mm pitch within a range of 2.5 mm in length and width, with the measurement range further narrowed at the same location on the same broken magnetic disk. According to this measurement result, the flatness is 0.561 mm.

[Comparative example]
Table 3 shows a comparative example in which the magnetic disk of the usable hard disk device was measured in a range of 2.5 mm in length and width at the same place as described above, and the flatness was 0.006 mm.

  The magnetic disk, which is an important component of the hard disk device, is said to require a flatness of about several microns. As seen in the comparative example, the flatness of the magnetic disk of the usable hard disk device is 0.006 mm (= 6 microns), which falls within that range. On the other hand, in the experimental example destroyed using the apparatus of this example, the flatness is 4.2 mm within the range of 25 mm in length and width (see Table 1), which is about 700 times that of the comparative example, and the measurement range is further reduced. Even within the range of 2.5 mm in length and width, the flatness is 0.56 mm (see Table 2), which is about 93 times that of the comparative example, indicating that it cannot be used. In other words, it is impossible to read the recorded data.

 In this manner, the plurality of protrusions 38 and 46 having the rounded tip portions provided on the upper and lower sides, respectively, press and destroy the hard disk device together with the housing 3, and the upper and lower protrusions 38 and 46 are mutually connected. Since the phase is shifted so as not to interfere or difficult to interfere, the magnetic disk 4 which is the data storage location is deformed with irregularities in the state where the flat part does not remain, and data reading becomes impossible everywhere There is an effect that no readable part remains. Further, since the hard disk device is sandwiched between the upper and lower protrusions 38 and 46 and pressed and destroyed, there is an effect that the work efficiency is improved as compared with the case where the hard disk device is broken by drilling with a drill or the like.

  Further, since both the upper and lower protrusions 38 and 46 that press the hard disk device are rounded at the tip, they are affixed to the housing 3 that forms the outer shell of the hard disk device as shown in FIG. The manufacturing label 6 describing the necessary items such as the manufacturing number and the serial number remains so that it can be read even after the hard disk device is destroyed. The effect is that it can be immediately identified. The sticking of the manufacturing label 6 is not limited to the position shown in FIG. 5B, but the protrusions 38 and 46 have rounded tips, so that the manufacturing label is manufactured at any sticking position. Necessary items such as numbers and serial numbers remain so that they can be read even after destruction.

  In addition, if the state before and after the destruction is recorded with a photograph or the like so that the manufacturing label 6 can be inserted, the requester of the disposal of the hard disk device recognizes (or assumes) that the hard disk device related to the request has been completely destroyed. There is an effect that can be made.

 In the above embodiment, the hydraulic cylinder device is attached to the machine base, but a commercially available hydraulic press machine can be used instead, and another hydraulic cylinder device is used instead of the hydraulic cylinder device. In the above-described embodiment, the protrusion has a hemispherical shape, but instead of this, the top of a polyhedron such as a pyramid or a cone is rounded as shown in FIG. The rounded shape may not be a perfect curved surface microscopically, but may be a polyhedron composed of many small surfaces and rounded when viewed from the whole. Furthermore, in the above embodiment, the relative positions of the upper and lower protrusions 38 and 46 are shifted so as not to interfere with each other, but the diameter is larger than between the adjacent protrusions 46 instead of the protrusions 38 as shown in FIG. It is also possible to use other protrusions 54 that have been used. In the above-described embodiment, the pressing head 32 can be reciprocated up and down. However, the pressing head can be reciprocated in the horizontal direction or the diagonally up and down direction, and a receiving table may be provided at a position opposite to the moving direction. .

  The present invention apparatus can be applied to the use of discarding hard disk devices and personal computers that are no longer needed after the remaining data of the hard disk devices are completely unreadable. In addition, it is difficult to confirm whether the data has been completely erased or the data has been destroyed, such as whether the data has become unreadable, with a general disposal means. It is particularly suitable when it is necessary to infer such data destruction because it is possible to visually infer the current situation or visually infer the destruction state with a photograph taken including the manufacturing label. Applicable.

(A) and (B) are a front view and a side view showing an outline of an apparatus according to an embodiment of the present invention. (A) and (B) are a partially broken front view and a bottom view of one part used in the apparatus of the embodiment. (A) and (B) are a plan view and a sectional view of other parts used in the apparatus of the embodiment. (A), (b) is explanatory drawing which shows the planar relationship position of the both protrusions of the components shown in FIG. 2 and FIG. 3, and the partial explanatory drawing which shows the pressing state of the magnetic disk by both protrusions. (A), (b), and (c) are perspective views of a hard disk device that is an object of use of the apparatus of the embodiment, an explanatory diagram showing a broken state of the hard disk device, and a perspective view showing a deformed state of the magnetic disk of the hard disk device. FIG. It is explanatory drawing which shows the measurement position of the flatness of a magnetic disc. It is explanatory drawing which shows the modification of the protrusion shown in FIG. 2, FIG. It is a partial explanatory view showing the pressing state of the magnetic disk according to a modification of the protrusion.

Explanation of symbols

2 Hard disk devices
3 Housing 4 Magnetic disk
6 Manufacturing Label 30 Piston Rod 32 Pressing Head 38 Protrusion 40 Receiving Base 42 Recess 46 Protrusion 50 Protrusion 54 Protrusion

Claims (3)

  In disposing of the hard disk device, the hard disk device is crushed by the pressing means together with the housing on which the magnetic disk, magnetic head and other hard disk device components are arranged, and the magnetic disk is deformed so that the remaining data cannot be read. The pressing means includes a pressing head provided so as to be movable up and down, and a receiving table provided below the pressing head, and a lower end surface portion of the pressing head and an upper end surface portion of the receiving table A plurality of protrusions each having a rounded tip are spaced from each other, and the protrusions of the press head and the protrusions of the cradle are arranged so as not to overlap each other or to interfere with each other. The hard disk device is configured to be pressed and destroyed by sandwiching the hard disk device between the pressing head and the cradle. Destruction device.   In disposing of the hard disk device, the hard disk device is crushed by the pressing means together with the housing on which the magnetic disk, magnetic head and other hard disk device components are arranged, and the magnetic disk is deformed so that the remaining data cannot be read. The pressing means includes a pressing head provided so as to be movable in a lateral direction or an oblique vertical direction, and a receiving table provided at a position opposite to the moving direction of the pressing head, and the pressing head and the receiving table. In this case, a plurality of protrusions with rounded tips are spaced apart from the end face on the side facing the other party, and the protrusions of the press head and the protrusion of the cradle do not overlap each other. Or by shifting the position so that they do not interfere with each other. Destruction device such as a hard disk device configured Kowasuru so.   3. The hard disk device breaking device according to claim 1, wherein the pressing means is provided with a pressing head attached to the tip of a rod provided so as to reciprocate in the vertical direction, the horizontal direction or the oblique vertical direction, and the pressing head. A destructive device for a hard disk device, in which a cradle is provided in a fixed position at a position opposite to the moving direction, and each projection of the pressing head and the cradle is formed in a hemispherical shape.

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