WO2010044653A1 - Mobile device for the destruction of data carriers - Google Patents

Mobile device for the destruction of data carriers Download PDF

Info

Publication number
WO2010044653A1
WO2010044653A1 PCT/NL2008/000227 NL2008000227W WO2010044653A1 WO 2010044653 A1 WO2010044653 A1 WO 2010044653A1 NL 2008000227 W NL2008000227 W NL 2008000227W WO 2010044653 A1 WO2010044653 A1 WO 2010044653A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile device
knife
data carrier
cutting
feed
Prior art date
Application number
PCT/NL2008/000227
Other languages
French (fr)
Inventor
Christian Bernard Maria Mesu
Original Assignee
C.M.G.G. B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by C.M.G.G. B.V. filed Critical C.M.G.G. B.V.
Priority to PCT/NL2008/000227 priority Critical patent/WO2010044653A1/en
Priority to CN2009801466523A priority patent/CN102223977A/en
Priority to PCT/NL2009/050423 priority patent/WO2010044658A1/en
Priority to EP20090788226 priority patent/EP2352612B1/en
Publication of WO2010044653A1 publication Critical patent/WO2010044653A1/en
Priority to US13/087,930 priority patent/US8887605B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2233—Feed means of ram or pusher type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0608—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers

Definitions

  • the present invention relates to a mobile device for destroying data carriers.
  • Devices for destroying data carriers are generally known. Hard disks can thus be destroyed with a shredder. Use can likewise be made of a hydraulic press which crushes the data carrier.
  • the mobile device comprises a feed device and a cutting device, wherein the feed device is disposed for the purpose of feeding the data carrier in a feed direction to the cutting device, and wherein the cutting device is adapted to cut completely through the data carrier. Cutting completely through the data carrier makes recovery of data on the cut-through data carrier considerably more difficult.
  • the device is particularly suitable for cutting through hard disks.
  • These disks consist of a metal housing with a series of concentrically placed, magnetizable disks arranged therein.
  • the feed device is adapted for stepwise feed of the data carrier during operation.
  • a further advantage can be obtained when the step size of the stepwise feed is adjustable. In the case of the hard disk this means that the disk can be cut into pieces or strips of variable dimensions.
  • the adjustability can preferably be controlled on the outside of the machine so that a user does not have to open the housing in which the cutting device and feed device are placed.
  • the cutting device comprises a first knife connected to a drive for the purpose of completely- cutting through the data carrier perpendicularly of the feed device. During the cutting movement of the knife caused by the drive the knife follows a path.
  • the feed device is now set such that the data carrier is carried into this path such that the path lies perpendicularly of the data carrier.
  • the cut in the disk is made on the upper and/or lower side thereof, i.e. one of the two larger surfaces.
  • the drive of the knife preferably comprises a hydraulic press.
  • a hydraulic press has the advantage that much pressure force can be generated within a limited space. It is a further advantage if this press is adapted for connection to the regular mains electricity.
  • regular mains electricity is understood to mean the power supply accessible in a normal office environment or dwelling.
  • the object of the present invention is to provide a mobile device for destroying a data carrier.
  • This device can preferably be used in the above-mentioned office environment or dwelling. If such a device could only be used by being connected to for instance a power current connection, the device would have very little flexibility.
  • regular mains electricity must therefore be understood to comprise only those connections which are readily accessible, and so for instance not a power current connection.
  • the use of the regular mains electricity implies that the mobile device can draw off less power than in the case of a power current connection. It is therefore important to use a hydraulic press which can produce sufficient force at this voltage.
  • the hydraulic press is preferably adapted to produce a pressure force of at least 150000 N.
  • Use is preferably made of a cutting device comprising a second fixedly disposed knife, wherein the first and second knife are disposed such that, during a cutting movement associated with said complete cutting through of the data carrier, the first and second knife pass at least partially alongside each other. An effective cutting movement is achieved by the cutting knives passing a small distance alongside each other.
  • the form of the knife has significant consequences for the power which the press must be able to produce to cut through the data carrier.
  • a particularly advantageous cutting movement can be obtained if the form of the knife is such that the first knife cuts at least partially into the data carrier at an angle. Cutting at an angle is for instance possible by providing the knife with a reverse V-profile.
  • Such a profile is characterized in that a knife with this profile cuts first into the sides of the data carrier.
  • a further advantage of this profile is related to the construction of a hard disk. This is because these are provided in the centre with a shaft around which the concentric magnetizable disks are placed. The material from which this shaft is made is very hard. Making use of a reverse V-profile it is however still possible to suffice with a limited power of the press, whereby the flexibility of the machine is not impaired.
  • a type of steel is preferably used with a hardness of at least 60 HRC.
  • a very advantageous type of steel is known under the name of high-grade tool steel. Of this type, steel with the material number 12379 is highly suitable.
  • the knife can comprise a plurality of knife parts. It is thus possible for instance for the knife parts to be placed on a knife holder.
  • the knife holder and knife parts can then consist of different material. This provides the advantage that, when the knife parts become worn, only these parts have to be replaced.
  • a reverse V-profile is possible by placing substantially beam- like knife parts at an angle to each other in a knife holder adapted for this purpose. It is thus not essential to apply the V-profile in the hard steel type.
  • the material of the first knife, and preferably also the second knife such that it is not magnetizable or magnetic. This is related to for instance the strong magnetic fields which may be present in the data carriers such as a hard disk. If the knives were magnetizable, there would be a risk of remnants of the hard disk adhering to the knife during or after cutting. The cutting device would have to be repeatedly cleaned as a result.
  • a pressing device In order to further reduce the possibility of data being extracted from the cut parts of the data carrier, it is advantageous for a pressing device to be incorporated downstream of the cutting device. This pressing device then deforms the cut parts .
  • Figure 1 is a schematic view of the general principle according to the present invention.
  • Figure 2 is a side view according to arrow I in figure 1;
  • Figure 3 is a schematic top view of an embodiment of the invention.
  • FIG 1 shows schematically the general principle of the invention, while figure 2 shows a schematic side view according to arrow I in this figure.
  • a hard disk 1 is advanced as according to arrow 3 in the direction of a cutting device 4 by means of a hydraulic cylinder 2 functioning as a feed device.
  • the cutting device comprises a first knife 5 and a second knife 5 ' .
  • First knife 5 is received in guides 6 and is driven by a hydraulic press 7.
  • First knife 5 is shown in simplified manner in figure 1.
  • the middle horizontal part of the knife as shown in figure 1 can here be largely or wholly absent.
  • Hydraulic cylinder 2 can move with discrete steps, whereby hard disk 1 can be cut into strips 8. These strips are connected by means of a receiving bin 9.
  • first knife 5 is preferably such that the bottom side of this knife passes alongside the top side of second knife 5 ' .
  • the distance between the two knives is chosen such that there is sufficient tolerance in the direction according to arrow
  • An optional addition (not shown) to the above embodiment comprises a pressing device for further deforming the cut parts 8.
  • a possible embodiment comprises a plate placed behind the cutting device. After cutting the cut parts 8 fall onto the plate. Arranged on both sides of the plate are pressing members which can move toward each other for the purpose of pressing the parts. The plate can then be pulled away or tilted, whereby the parts fall into the receiving bin 9 placed below the plate.
  • Figure 3 shows a top view of the device .
  • this embodiment is provided with a second hydraulic cylinder 10.
  • This cylinder places the hard disk onto a conveyor 11 in the direction of cutting device 4.
  • the hard disk can be placed in the machine by means of a transport device (not shown) , in this case a lift which transports a hard disk for destruction downward from the upper part of the machine to location 12. Hydraulic cylinder 10 will then push the hard disk to conveyor 11. Cylinder 2 then moves the hard disk in stepwise manner to the cutting device.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The present invention relates to a mobile device for destroying data carriers, such as hard disks. According to the invention a mobile device is provided comprising a feed device (2). and a cutting device (5, 5'), wherein the feed device is disposed for the purpose of feeding the data carrier in a feed direction to the cutting device, and wherein the cutting device is adapted to cut completely through the data carrier. Cutting completely through the data carrier makes recovery of data on the cut-through data carrier considerably more difficult.

Description

Mobile device for the destruction of data carriers
The present invention relates to a mobile device for destroying data carriers. Devices for destroying data carriers are generally known. Hard disks can thus be destroyed with a shredder. Use can likewise be made of a hydraulic press which crushes the data carrier.
Such known devices are usually fixedly disposed machines. This has the drawback that the data carrier for destruction must be taken to the shredder or press. This is very undesirable in an office environment.
It is therefore an object of the present invention to provide a mobile device for destroying a data carrier which destroys the data carrier with sufficient certainty such that after destruction recovery of the information available on the data carrier is not possible, or at least only possible to a very limited extent.
This object is achieved with a device as defined in claim 1. According to the invention the mobile device comprises a feed device and a cutting device, wherein the feed device is disposed for the purpose of feeding the data carrier in a feed direction to the cutting device, and wherein the cutting device is adapted to cut completely through the data carrier. Cutting completely through the data carrier makes recovery of data on the cut-through data carrier considerably more difficult.
The device is particularly suitable for cutting through hard disks. These disks consist of a metal housing with a series of concentrically placed, magnetizable disks arranged therein.
In order to further reduce the possibility of successful recovery of data, it is advantageous that the feed device is adapted for stepwise feed of the data carrier during operation. A further advantage can be obtained when the step size of the stepwise feed is adjustable. In the case of the hard disk this means that the disk can be cut into pieces or strips of variable dimensions. The adjustability can preferably be controlled on the outside of the machine so that a user does not have to open the housing in which the cutting device and feed device are placed. In a preferred embodiment the cutting device comprises a first knife connected to a drive for the purpose of completely- cutting through the data carrier perpendicularly of the feed device. During the cutting movement of the knife caused by the drive the knife follows a path. The feed device is now set such that the data carrier is carried into this path such that the path lies perpendicularly of the data carrier. In the case of a hard disk it is advantageous if the cut in the disk is made on the upper and/or lower side thereof, i.e. one of the two larger surfaces.
The drive of the knife preferably comprises a hydraulic press. A hydraulic press has the advantage that much pressure force can be generated within a limited space. It is a further advantage if this press is adapted for connection to the regular mains electricity.
Within the context of the present application the term regular mains electricity is understood to mean the power supply accessible in a normal office environment or dwelling. The object of the present invention is to provide a mobile device for destroying a data carrier. This device can preferably be used in the above-mentioned office environment or dwelling. If such a device could only be used by being connected to for instance a power current connection, the device would have very little flexibility. The term regular mains electricity must therefore be understood to comprise only those connections which are readily accessible, and so for instance not a power current connection.
The use of the regular mains electricity implies that the mobile device can draw off less power than in the case of a power current connection. It is therefore important to use a hydraulic press which can produce sufficient force at this voltage. The hydraulic press is preferably adapted to produce a pressure force of at least 150000 N.
Use is preferably made of a cutting device comprising a second fixedly disposed knife, wherein the first and second knife are disposed such that, during a cutting movement associated with said complete cutting through of the data carrier, the first and second knife pass at least partially alongside each other. An effective cutting movement is achieved by the cutting knives passing a small distance alongside each other.
It has been found that the form of the knife has significant consequences for the power which the press must be able to produce to cut through the data carrier. A particularly advantageous cutting movement can be obtained if the form of the knife is such that the first knife cuts at least partially into the data carrier at an angle. Cutting at an angle is for instance possible by providing the knife with a reverse V-profile. Such a profile is characterized in that a knife with this profile cuts first into the sides of the data carrier. A further advantage of this profile is related to the construction of a hard disk. This is because these are provided in the centre with a shaft around which the concentric magnetizable disks are placed. The material from which this shaft is made is very hard. Making use of a reverse V-profile it is however still possible to suffice with a limited power of the press, whereby the flexibility of the machine is not impaired.
For the manufacture of the first knife a type of steel is preferably used with a hardness of at least 60 HRC. A very advantageous type of steel is known under the name of high-grade tool steel. Of this type, steel with the material number 12379 is highly suitable.
The knife can comprise a plurality of knife parts. It is thus possible for instance for the knife parts to be placed on a knife holder. The knife holder and knife parts can then consist of different material. This provides the advantage that, when the knife parts become worn, only these parts have to be replaced. A reverse V-profile is possible by placing substantially beam- like knife parts at an angle to each other in a knife holder adapted for this purpose. It is thus not essential to apply the V-profile in the hard steel type.
It is important to select the material of the first knife, and preferably also the second knife, such that it is not magnetizable or magnetic. This is related to for instance the strong magnetic fields which may be present in the data carriers such as a hard disk. If the knives were magnetizable, there would be a risk of remnants of the hard disk adhering to the knife during or after cutting. The cutting device would have to be repeatedly cleaned as a result.
In order to further reduce the possibility of data being extracted from the cut parts of the data carrier, it is advantageous for a pressing device to be incorporated downstream of the cutting device. This pressing device then deforms the cut parts .
A preferred embodiment of the present invention will be discussed in more detail hereinbelow with reference to the accompanying figures, wherein:
Figure 1 is a schematic view of the general principle according to the present invention;
Figure 2 is a side view according to arrow I in figure 1;
Figure 3 is a schematic top view of an embodiment of the invention.
Figure 1 shows schematically the general principle of the invention, while figure 2 shows a schematic side view according to arrow I in this figure. In figure 1 a hard disk 1 is advanced as according to arrow 3 in the direction of a cutting device 4 by means of a hydraulic cylinder 2 functioning as a feed device. The cutting device comprises a first knife 5 and a second knife 5 ' . First knife 5 is received in guides 6 and is driven by a hydraulic press 7. First knife 5 is shown in simplified manner in figure 1. In a favourable embodiment use is made of a knife holder to which two knife parts can be connected. These knife parts are connected at an angle to the knife holder, whereby a reverse V-profile is created. The middle horizontal part of the knife as shown in figure 1 can here be largely or wholly absent.
Hydraulic cylinder 2 can move with discrete steps, whereby hard disk 1 can be cut into strips 8. These strips are connected by means of a receiving bin 9.
The movement of first knife 5 is preferably such that the bottom side of this knife passes alongside the top side of second knife 5 ' . The distance between the two knives is chosen such that there is sufficient tolerance in the direction according to arrow
3 to prevent the knives making contact with each other.
An optional addition (not shown) to the above embodiment comprises a pressing device for further deforming the cut parts 8. A possible embodiment comprises a plate placed behind the cutting device. After cutting the cut parts 8 fall onto the plate. Arranged on both sides of the plate are pressing members which can move toward each other for the purpose of pressing the parts. The plate can then be pulled away or tilted, whereby the parts fall into the receiving bin 9 placed below the plate.
Figure 3 shows a top view of the device . In addition to the above discussed hydraulic cylinder 2, this embodiment is provided with a second hydraulic cylinder 10. This cylinder places the hard disk onto a conveyor 11 in the direction of cutting device 4. The hard disk can be placed in the machine by means of a transport device (not shown) , in this case a lift which transports a hard disk for destruction downward from the upper part of the machine to location 12. Hydraulic cylinder 10 will then push the hard disk to conveyor 11. Cylinder 2 then moves the hard disk in stepwise manner to the cutting device.
It will be apparent to the skilled person that diverse modifications and additions are possible without departing from the scope of protection defined by the appended claims.

Claims

Claims
1. Mobile device for destroying a data carrier, comprising a feed device and a cutting device, wherein the feed device is disposed for the purpose of feeding the data carrier in a feed direction to the cutting device, and wherein the cutting device is adapted to cut completely through the data carrier.
2. Mobile device as claimed in claim 1, wherein the data carrier comprises a hard disk.
3. Mobile device as claimed in claim 1 or 2, wherein the feed device is adapted for stepwise feed of the data carrier during operation.
4. Mobile device as claimed in claim 3, wherein the step size of the stepwise feed is adjustable.
5. Mobile device as claimed in any of the claims 1-4, wherein the cutting device comprises a first knife connected to a drive for the purpose of completely cutting through the data carrier perpendicularly of the feed device .
6. Mobile device as claimed in claim 5, wherein the drive comprises a hydraulic press.
7. Mobile device as claimed in claim 6, wherein the hydraulic press is suitable for connection to the regular mains electricity.
8. Mobile device as claimed in claim 6 or 7, wherein the hydraulic press is adapted to produce a pressure force of at least 150000 N.
9. Mobile device as claimed in any of the claims 5-8, wherein the cutting device comprises a second fixedly disposed knife, wherein the first and second knife are disposed such that, during a cutting movement associated with said complete cutting through of the data carrier, the first and second knife pass at least partially alongside each other.
10. Mobile device as claimed in any of the claims 5-9, wherein the form of the knife is such that, during a cutting movement associated with said complete cutting through of the data carrier, the first knife cuts at least partially into the data carrier at an angle .
11. Mobile device as claimed in any of the claims 5-10, wherein the hardness of the material of the first knife is at least 60 HRC.
12. Mobile device as claimed in claim 11, wherein the material comprises steel wi'th the material number 12379.
13. Mobile device as claimed in any of the claims 5-12, wherein the material of the knife is not magnetizable or not magnetic.
14. Mobile device as claimed in any of the claims 1-13, wherein said cutting device is adapted to cut said data carrier into parts and wherein a pressing device is incorporated downstream of the cutting device for the purpose of deforming at least one of said parts .
PCT/NL2008/000227 2008-10-15 2008-10-15 Mobile device for the destruction of data carriers WO2010044653A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/NL2008/000227 WO2010044653A1 (en) 2008-10-15 2008-10-15 Mobile device for the destruction of data carriers
CN2009801466523A CN102223977A (en) 2008-10-15 2009-07-13 Mobile device and method for the destruction of data carriers
PCT/NL2009/050423 WO2010044658A1 (en) 2008-10-15 2009-07-13 Mobile device and method for the destruction of data carriers
EP20090788226 EP2352612B1 (en) 2008-10-15 2009-07-13 Mobile device and method for the destruction of a hard disk
US13/087,930 US8887605B2 (en) 2008-10-15 2011-04-15 Device and method for destroying a hard disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2008/000227 WO2010044653A1 (en) 2008-10-15 2008-10-15 Mobile device for the destruction of data carriers

Publications (1)

Publication Number Publication Date
WO2010044653A1 true WO2010044653A1 (en) 2010-04-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2008/000227 WO2010044653A1 (en) 2008-10-15 2008-10-15 Mobile device for the destruction of data carriers

Country Status (1)

Country Link
WO (1) WO2010044653A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104858909A (en) * 2014-11-11 2015-08-26 重庆市九龙坡区仔仔食品厂 Bull paddywack slicing and shredding mechanism with recycling and charging functions
CN106738478A (en) * 2016-11-26 2017-05-31 无锡同心塑料制品有限公司 A kind of plastic processing multifunctional efficient cutter sweep
CN113618802A (en) * 2021-07-03 2021-11-09 江苏博名空调设备有限公司 Humidifier processing equipment and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129656A (en) * 1958-09-03 1964-04-21 Sebastian F Judd Multiple compression baling press and shear
DE1627164A1 (en) * 1967-03-17 1970-12-17 Cosmo S A Machine for processing metal waste
US4213385A (en) * 1977-09-03 1980-07-22 Lindemann Maschinenfabrik Gmbh Scrap shearing machine
US4881459A (en) * 1988-03-17 1989-11-21 Allied Gator, Inc. Hydraulic scrap shear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129656A (en) * 1958-09-03 1964-04-21 Sebastian F Judd Multiple compression baling press and shear
DE1627164A1 (en) * 1967-03-17 1970-12-17 Cosmo S A Machine for processing metal waste
US4213385A (en) * 1977-09-03 1980-07-22 Lindemann Maschinenfabrik Gmbh Scrap shearing machine
US4881459A (en) * 1988-03-17 1989-11-21 Allied Gator, Inc. Hydraulic scrap shear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104858909A (en) * 2014-11-11 2015-08-26 重庆市九龙坡区仔仔食品厂 Bull paddywack slicing and shredding mechanism with recycling and charging functions
CN106738478A (en) * 2016-11-26 2017-05-31 无锡同心塑料制品有限公司 A kind of plastic processing multifunctional efficient cutter sweep
CN113618802A (en) * 2021-07-03 2021-11-09 江苏博名空调设备有限公司 Humidifier processing equipment and method

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