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WO1996034390A1 - Butoir en elastomere depassant d'un bord externe du boitier d'une unite de disques - Google Patents

Butoir en elastomere depassant d'un bord externe du boitier d'une unite de disques Download PDF

Info

Publication number
WO1996034390A1
WO1996034390A1 PCT/US1996/005779 US9605779W WO9634390A1 WO 1996034390 A1 WO1996034390 A1 WO 1996034390A1 US 9605779 W US9605779 W US 9605779W WO 9634390 A1 WO9634390 A1 WO 9634390A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk drive
clamp
base plate
hard disk
plates
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1996/005779
Other languages
English (en)
Inventor
David B. Knighton
Harold Beecroft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maxtor Corp
Original Assignee
Maxtor Corp
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 Maxtor Corp filed Critical Maxtor Corp
Priority to AU57881/96A priority Critical patent/AU5788196A/en
Publication of WO1996034390A1 publication Critical patent/WO1996034390A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
    • G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds

Definitions

  • the present invention relates to a clamping device for fastening a cover plate to a base plate of a hard disk drive.
  • Hard disk drive units contain a magnetic disk that is capable of storing a large amount of binary information.
  • the magnetic disk is typically coupled to a hub which is rotated by an electric motor.
  • the drive unit also has a head that magnetizes and senses the magnetic field of the disk.
  • the head is typically located at the end of an actuator arm which can move relative to the magnetic disk.
  • the actuator arm, motor and other components of a typical disk drive unit are relatively small and fragile, and are therefore susceptible to damage when subjected to excessive external loads or vibration. For this reason, hard disk drives are usually rigidly mounted to the housing of the computer system by screws or other fastening means.
  • Hard disk drives contain programs and other information that are vital to the user. It is sometimes desirable to transfer such information to a different computer system. Transferring programs from-a hard disk typically requires loading the information onto a floppy disk, or sending such information over a phone line. Such methods can be time consuming, particularly if the program is long or there is a large amount of data.
  • portable hard disk drives which can be plugged into a slot in the computer. To reduce the amount of possible component damage to the drive unit, the housing and assembly are typically constructed to be quite rugged. These rugged assemblies are typically heavy and bulky, and generally impractical to carry and store.
  • PCMCIA Personal Computer Memory Card International Association
  • the PCMCIA standard includes a type I format, a type II format and a type III format, each format being distinguished by a different card thickness.
  • Memory can be added to a computer by merely plugging in an additional card.
  • a modem or facsimile (FAX) card can be added to a system with the push of the hand.
  • FAX facsimile
  • the standardized cards are approximately the size of a credit card and include a connector which mates with a connector in the computer.
  • the small size of the card provides an electronic assembly that is easy to carry and store.
  • Such a hard disk card must be rugged enough to withstand the large shock loads that may be applied to the drive.unit. Shock loads may occur by dropping a card, or subjecting the host computer to a large force that is transmitted to the disk drive through the computer housing. It would be desirable to have a hard disk drive that conforms with the PCMCIA format and can withstand large shock loads.
  • Hard disk drives typically include a cover plate that is attached to a base plate by a plurality of screws or other equivalent type of fastening means.
  • the disk drive disclosed in the '008 application includes a plurality of small screws which attach the cover to the base plate of the drive.
  • the present invention is a clamp which fastens a cover plate to the base plate of a hard disk drive. Together the plates define a housing which encloses the disk and accompanying hardware of the disk drive.
  • the clamp has a C- shaped cross-section which includes a pair of leg portions adjacent to an outer flange portion of the housing. When the clamp is in an unassembled condition, the distance between the leg portions is less than the combined thickness of the outer flange portion. The clamp is typically pushed onto the housing, so that the leg portions are deflected an amount sufficient to produce a spring force sufficient to clamp together the plates.
  • the leg portions also have a plurality of tabs which extend into corresponding slots in the plates to lock the clamp onto the housing.
  • a pair of elastomeric strips which absorb shock loads applied to the edges of the disk drive.
  • the strips each have a plurality of studs that are inserted into corresponding notches in the plates.
  • the clamp is small enough to provide a disk drive assembly which complies with the PCMCIA specifications.
  • Figure 1 is a perspective view of a hard disk drive with a coupling clamp of the present invention
  • Figure 2 is a top cross-sectional view of the hard disk drive of Fig. 1;
  • Figure 5 is a cross-sectional view of an alternate embodiment of the coupling clamp
  • Figure 6 is a view similar to Fig. 4 showing an alternate embodiment of the coupling clamp
  • Figure 1 shows a hard disk drive card assembly 10 that can be plugged into a computer (not shown) .
  • the assembly 10 includes a housing 12 and a connector 14.
  • the housing has the dimensions of 85.6 x 54.0 x 5.0 millimeters.
  • the dimensions conform with the specifications issued by the Personal Computer Memory Card International Association (PCMCIA) for a type II electronic card.
  • PCMCIA is an association that has promulgated a specification which list dimensions and other requirements for a standard electronic card.
  • Each computer that conforms with the PCMCIA specification will contain slots that can receive a standardized card. With such a standard, electronic cards of one computer can be readily plugged into another computer, regardless of the model or make of the computers.
  • the cover plate 30 is attached to the base plate 28 by a clamp 32.
  • the clamp 32 is preferable constructed from a magnetic stainless steel for electromagnetic shielding and has a C shaped cross-section.
  • the C shaped clamp 32 has a pair of leg portions 34 that extend from a base portion 36.
  • the leg portions 34 engage outer flange portions 38 of the plates 28 and 30.
  • the clamp 32 has a plurality of tabs 40 which extend into corresponding slots 42 in the plates 28 and 30. Both the tabs 40 and the slots 42 incline toward the edge of the card assembly to lock the clamp 32 onto the housing 12 and prevent ar.y inadvertent separation of the clamp 32 from the drive.
  • the elastomeric strip 48 and sliding clamp 32 absorb the external forces and essentially isolate the card assembly from the computer housing, so that shock and vibration loads from the computer housing do not effect the operation of the drive.
  • the elastomeric strip 48 and sliding clamp 32 will also absorb shock loads caused by other events such as a user dropping an unplugged card onto a hard surface.
  • each " strip 60 and 64 has a plurality of studs 70 that are inserted into corresponding notches 72 located about the periphery of the plates 62 and 66.
  • the studs 70 can be merely pressed into the notches 72 and/or bonded to the outer ⁇ urface of the plates 62 and 66.
  • the studs 70 and notches 72 provide a ready means of assembling and disassembling the strips 60 and 64 and accompanying clamp 68.

Landscapes

  • Casings For Electric Apparatus (AREA)

Abstract

Une unité de disques durs (10) est constituée d'une plaque de couverture (30) et d'une plaque de base (28). L'ensemble de ces deux plaques définit un boîtier qui renferme le disque ainsi que le matériel accompagnant l'unité de disques. Un dispositif de blocage (32) a une section transversale en forme de C qui comporte une paire de parties formant des pieds (34), adjacentes à une partie du boîtier formant une bride externe. Lorsque le dispositif de blocage ne se trouve pas assemblé, la distance séparant les parties formant les pieds est inférieure à l'épaisseur combinée de la partie formant la bride externe. Les parties formant les pieds comportent une pluralité de pattes (40) qui se déploient à l'intérieur de fentes correspondantes situées sur les plaques de manière à verrouiller le dispositif de blocage sur le boîtier. Une paire de bandes en élastomère (60, 64), fixées aux bords externes de la plaque de couverture et de la plaque de base, absorbent les charges par à-coups appliquées aux pieds de l'unité de disques. Ces bandes comportent chacune une pluralité d'appendices (70) que l'on introduit à l'intérieur des encoches (72) correspondantes ménagées dans les plaques.
PCT/US1996/005779 1995-04-27 1996-04-26 Butoir en elastomere depassant d'un bord externe du boitier d'une unite de disques Ceased WO1996034390A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57881/96A AU5788196A (en) 1995-04-27 1996-04-26 An elastomeric bumper which extends from an outer edge of a disk drive housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43010295A 1995-04-27 1995-04-27
US430,102 1995-04-27

Publications (1)

Publication Number Publication Date
WO1996034390A1 true WO1996034390A1 (fr) 1996-10-31

Family

ID=23706075

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/005779 Ceased WO1996034390A1 (fr) 1995-04-27 1996-04-26 Butoir en elastomere depassant d'un bord externe du boitier d'une unite de disques

Country Status (2)

Country Link
AU (1) AU5788196A (fr)
WO (1) WO1996034390A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343544A (en) * 1998-11-06 2000-05-10 Samsung Electronics Co Ltd Shock/vibration damping bumper for a hard disk drive
US6661604B2 (en) * 2000-06-16 2003-12-09 International Business Machines Corporation Plate-like apparatus, rotating body built-in device, and disk device
FR2854485A1 (fr) * 2003-04-30 2004-11-05 Thomson Licensing Sa Lecteur de support de donnees comportant une protection
FR2854486A1 (fr) * 2003-04-30 2004-11-05 Thomson Licensing Sa Lecteur de support de donnees comportant une enceinte
US6947252B2 (en) 2000-05-10 2005-09-20 Samsung Electronics Co., Ltd. Wave stringer for controlling acoustic noise and shock vibration in a storage device
EP1577897A1 (fr) * 2004-03-15 2005-09-21 Xyratex Technology Limited Support pour un dispositif de stockage de données et méthode de montage d'un dispositif de stockage de données
US7196902B2 (en) 2005-01-31 2007-03-27 Hitachi Global Storage Technologies B.V. Disk drive coupling apparatus for rigidly coupling a disk drive to a chassis of a computer
US7260885B2 (en) 2005-01-31 2007-08-28 Hitachi Global Storage Technologies Netherlands B.V. System and method for rigidly coupling a disk drive to a chassis of a computer
CN100361044C (zh) * 2005-03-07 2008-01-09 华硕电脑股份有限公司 可防止震动的锁固组合装置
US9786330B1 (en) 2016-01-21 2017-10-10 Western Digital Technologies, Inc. Shield for external welds of hermetically sealed electronics devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249221A (en) * 1979-04-23 1981-02-03 Sli Industries, Inc. Method and apparatus for preventing contamination of a rotating magnetic disc
US5017767A (en) * 1987-08-31 1991-05-21 Fanuc Ltd. IC card with metal reinforcing plates and grounding lead wire
JPH04368690A (ja) * 1991-06-18 1992-12-21 Toshiba Corp 磁気ディスク装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249221A (en) * 1979-04-23 1981-02-03 Sli Industries, Inc. Method and apparatus for preventing contamination of a rotating magnetic disc
US5017767A (en) * 1987-08-31 1991-05-21 Fanuc Ltd. IC card with metal reinforcing plates and grounding lead wire
JPH04368690A (ja) * 1991-06-18 1992-12-21 Toshiba Corp 磁気ディスク装置

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343544A (en) * 1998-11-06 2000-05-10 Samsung Electronics Co Ltd Shock/vibration damping bumper for a hard disk drive
GB2343544B (en) * 1998-11-06 2001-06-27 Samsung Electronics Co Ltd Shock protection for a hard disk drive
DE19953314B4 (de) * 1998-11-06 2007-05-03 Samsung Electronics Co., Ltd., Suwon Festplattenlaufwerkaufbau mit Dämpfungseinrichtung
US6947252B2 (en) 2000-05-10 2005-09-20 Samsung Electronics Co., Ltd. Wave stringer for controlling acoustic noise and shock vibration in a storage device
US6661604B2 (en) * 2000-06-16 2003-12-09 International Business Machines Corporation Plate-like apparatus, rotating body built-in device, and disk device
FR2854485A1 (fr) * 2003-04-30 2004-11-05 Thomson Licensing Sa Lecteur de support de donnees comportant une protection
FR2854486A1 (fr) * 2003-04-30 2004-11-05 Thomson Licensing Sa Lecteur de support de donnees comportant une enceinte
EP1577897A1 (fr) * 2004-03-15 2005-09-21 Xyratex Technology Limited Support pour un dispositif de stockage de données et méthode de montage d'un dispositif de stockage de données
US7196902B2 (en) 2005-01-31 2007-03-27 Hitachi Global Storage Technologies B.V. Disk drive coupling apparatus for rigidly coupling a disk drive to a chassis of a computer
US7260885B2 (en) 2005-01-31 2007-08-28 Hitachi Global Storage Technologies Netherlands B.V. System and method for rigidly coupling a disk drive to a chassis of a computer
CN100361044C (zh) * 2005-03-07 2008-01-09 华硕电脑股份有限公司 可防止震动的锁固组合装置
US9786330B1 (en) 2016-01-21 2017-10-10 Western Digital Technologies, Inc. Shield for external welds of hermetically sealed electronics devices

Also Published As

Publication number Publication date
AU5788196A (en) 1996-11-18

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