JP4362493B2 - Hard disk drive - Google Patents

Description

  The present invention relates to a hard disk drive, and more particularly to a hard disk drive (HDD) having a mechanism for erasing information recorded on a hard disk.

  When disposing of a personal computer, it is necessary to erase the recorded data in the information recording hard disk in order to prevent the leakage of information. The computer is disassembled and the hard disk is taken out and physically destroyed.

  When erasing data by software, there are the following problems. In other words, since a general IDE (Integrated Device Electronics) hard disk has a security lock function, when locked by this function, the device cannot be logically recognized, so software overwriting is performed. In order to erase, the hard disk must be unlocked by entering a password.

  However, when this password is forgotten, there is a problem that erasure by overwriting cannot be performed, and logical erasure is impossible. Therefore, in this case as well, finally, a method of physically destroying the hard disk must be used.

  Examples of devices for physically destroying a hard disk are disclosed in Patent Documents 1 and 2. In these destruction apparatuses, an HDD is taken out from a personal computer, this HDD is installed in the destruction apparatus, and pressure is applied from the outside to destroy the hard disk together with the HDD. Further, referring to Patent Document 3, there is disclosed a structure for breaking a hard disk by inserting a rod-shaped object such as a ballpoint pen from the outside without disassembling the HDD.

JP 2004-071057 A JP 2004-158172 A Utility Model Registration No. 3107315

  In the method using the destruction device of Patent Documents 1 and 2, the HDD itself is destroyed and the internal hard disk is destroyed. Therefore, it is necessary to prepare the device for that purpose separately. It is extremely difficult to keep the

  In the structure of Patent Document 3, a hard disk is destroyed by inserting a ball-point pen or the like from the outside, and human power is directly applied to the hard disk as it is, thus generating a greater destructive force. In addition, since the HDD is not equipped with a rod-shaped object that is a tool for destruction, it is necessary to prepare it separately at the time of destruction.

  Other methods include a disk surface coating method in which a magnetic shielding material is applied to the hard disk surface and a method of adding a magnetic erasing mechanism, both of which have the problem that a large structural change in the hard disk is required. .

  An object of the present invention is to provide a hard disk drive capable of performing physical destruction of a hard disk very easily even with a slight force without using a dedicated destruction device.

  Another object of the present invention is to provide a hard disk drive capable of performing physical destruction of a hard disk very easily without making a significant structural change.

The hard disk drive according to the present invention, a hard disk physically deformed or damaged allowed Ri name incorporates the destruction member constituting the destruction of recorded information, the previous SL destruction member, said amplifies the force applied by a human hard structure der to be applied to is, the breaking member is a screw, by rotating the screw, characterized in that the tip of the screw so as to contact with the hard disk.

  The operation of the present invention will be described. In order to destroy the recorded information by physically deforming or damaging the hard disk, a destructive member that amplifies the force applied by a human and applies it to the hard disk, such as a lever or a screw, In order to prevent this destruction member from malfunctioning, a malfunction protection member is provided, and at the time of disposal, this malfunction protection member is removed, and this destruction member is operated by human power to amplify this human force and act on the hard disk. To physically deform or damage the hard disk. As a result, it is possible to easily erase the recorded (remaining) information on the hard disk without using a special destruction device.

  According to the present invention, the following effects can be obtained. The first effect is that since the destruction mechanism is provided in the HDD, it is not necessary to separately prepare a destruction device at the time of disposal. Further, the second effect is that the destruction force can be amplified more than the force applied by humans and applied to the hard disk, so that the user can easily perform the destruction process of the hard disk.

  Since the third effect is a structure independent of the physical structure of a general hard disk, it can be additionally provided in the current hard disk and can be easily realized. The fourth effect is a physical destruction and is not affected by the logical state of the hard disk. For example, if the password is forgotten when the security lock function is set, it cannot be erased by software, but can be destroyed at any time if it is physically destroyed.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are cross-sectional views of an HDD showing an embodiment of the present invention. FIG. 1 is a diagram before destruction, and FIG. 2 is a diagram at the time of destruction.

  First, referring to FIG. 1, the hard disk 3 is housed in a case 6 of the HDD, and a pressure operating lever 2 for destruction is attached to the upper surface of the case 6 via a rotating shaft (fulcrum) 5. The pressure protrusion 1 is attached to the front end portion (operation point) of the operation lever 2 so as to face the hard disk 3 with a predetermined gap. A seal 4 for malfunction protection is affixed to the upper surface of the operation lever 2 so that the operation lever 2 and the case 6 form the same surface.

  When the hard disk 3 needs to be destroyed, the user peels off the malfunction-protecting seal 4 from the case 6 and raises the operating lever 2 as shown by the arrow A as shown in FIG. Thus, the lever 2 rotates about the fulcrum 5, and the pressure protrusion 1 which is the point of action of the tip portion hits the hard disk 3 to cause deformation, whereby the hard disk can be destroyed. As a result, it becomes impossible to read the recording information of the hard disk.

  In this example, by rotating the operating lever 2 as indicated by the arrow A by the fulcrum 5, the lever principle works, and the force when the pressing protrusion 1 presses the hard disk is generated more than human force. Even with a small amount of force, the hard disk is more effectively applied, and the hard disk can be easily deformed or damaged. In other words, the principle of the lever is used to amplify the force at the human power point and cause it to occur at the action point.

  3 and 4 are cross-sectional views of an HDD showing another embodiment of the present invention. FIG. 3 is the one before destruction, and FIG. 4 is the one at the time of destruction. 3 and 4, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals.

  First, referring to FIG. 3, the HDD case 6 is provided with a screw 8 for pressurizing operation, and the tip 9 of the screw 8 serves as a pressurizing protrusion to pressurize the hard disk 3. However, at the normal time when the destruction is not performed, the pressure protrusion 9 faces the hard disk 3 with a predetermined gap as shown in FIG. Therefore, it is assumed that the protective ring 7 is attached between the case 6 and the head portion of the screw 8. Thereby, at the time of normal use, even if the user operates the pressurizing operation screw 8 unintentionally for the protective ring 7, no operation is performed.

  When discarding the HDD, as shown in FIG. 4, the pressure operation screw 8 is once loosened, the protective ring 7 is removed, and the pressure operation screw 8 is tightened again. By this tightening, the screw 8 moves in the direction of arrow B, and the pressure protrusion 9 comes into contact with the hard disk 3, and further tightening causes the hard disk 3 to be deformed or damaged, so that information cannot be read out physically. It becomes a state.

  In this example, since it has a screw structure, the use of a screwdriver causes a force when the pressure protrusion 9 presses the hard disk more than a human force, so that even a small force can be applied to the hard disk more effectively. Can easily deform and damage the hard disk. In this example, too, human power is amplified and used.

  5 and 6 are cross-sectional views of an HDD according to still another embodiment of the present invention. FIG. 5 is a diagram before destruction, and FIG. 6 is a diagram at the time of destruction. 5 and 6, the same parts as those in FIGS. 3 and 4 are denoted by the same reference numerals.

  In this example, a plurality of pressurizing operation screws (8a to 8c) according to the embodiment shown in FIGS. 3 and 4 are provided to make it impossible to read the recorded information of the hard disk more reliably.

  At normal times, the pressurizing operation screws 8a to 8c are prevented from malfunctioning by the protection rings 7a to 7c, respectively. When discarding the HDD, the pressure operation screws 8a to 8c are once loosened, the protective rings 7a to 7c are removed, and the pressure operation screws 8a to 8c are tightened again. By this screw tightening, the pressure protrusions 9a to 9c come into contact with the hard disk 3, and by further screw tightening, the hard disk is deformed or damaged as shown in FIG. 6, and physical information cannot be read out.

It is sectional drawing of HDD at the time of normal use of one embodiment of this invention. It is sectional drawing of HDD at the time of discard of one embodiment of this invention. It is sectional drawing of HDD at the time of normal use of other embodiment of this invention. It is sectional drawing of HDD at the time of discard of other embodiment of this invention. It is sectional drawing of HDD at the time of normal use of other embodiment of this invention. It is sectional drawing of HDD at the time of discard of other embodiment of this invention.

Explanation of symbols

1,9 Pressure projection 2 Operation lever 3 Hard disk 4 Malfunction protection seal 5 Support point 6 Case 7 Protective ring 8 Pressure operation screw

Claims (3)

Ri Na incorporates a destruction member having a destructive physically deformed or damaged caused to the recording information to the hard disk,
The breaking member is a structure that amplifies a force applied by a human and applies it to the hard disk,
The hard disk drive, wherein the breaking member is a screw, and the tip of the screw is brought into contact with the hard disk by rotating the screw . 2. The hard disk drive according to claim 1, wherein the screw is provided at a plurality of locations . According to claim 1 or 2 of the hard disk drive and having a protection member for inhibiting rotation of said screw.

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