Disc drive having an integral gasket and continuous outer perimeter shock bumper

• US 5,703,734 A
• Filed: 11/13/1996
• Issued: 12/30/1997
• Est. Priority Date: 10/12/1994
• Status: Expired due to Term

• Current Assignee: Western Digital Technologies Incorporated (Western Digital Corporation)
• Original Assignee: International Business Machines Corporation
• Inventors: Boutaghou, Zine-Eddine, Berg, Lowell James, Berberich, James William, Neubauer, Jerry Lee, Heath, John S.
• Primary Examiner(s): Renner, Craig A.
• Application Number:
  US08/749,480
• Time in Patent Office: 412 Days
• Field of Search: 360/97.02, 360/97.03, 360/97.01, 369/75.1, 369/263, 361/685, 220/378, 248/615
• US Class Current: 360/97.02
• CPC Class Codes: G11B 25/043 using rotating discs
• CPC Class Codes: G11B 33/08 Insulation or absorption of undesired vibrations or sounds
• CPC Class Codes: G11B 33/10 Indicating arrangements; Warning arrangements G11B15/04, G11B19/04, G11B27/34, G11B27/36 take precedence
• CPC Class Codes: Y10S 360/90 Disk drive packaging

Abstract

A disk drive has at least one disk for storing data and at least one transducer for reading or writing data to or from the disk. The transducer is attached to an actuator which positions the transducer with respect to the disk. The actuator includes a controllable motor which is used to move the actuator and the transducer attached thereto. The disk drive also includes a ramp for off loading the transducer or for parking the transducer off of the surface of the disk. The disk drive includes a combination shock absorber and gasket that has locking tabs to keep the combination shock absorber and gasket in place during a shock or impact loading event. The combination shock absorber and gasket also can be provided with additional extensions to lessen shocks caused by flat drops. Elastomeric blocks or pads can be provided on the cover and the base to lessen shocks caused by flat drops. The drive can also have rotatable elastomeric blocks that can rotate to a position above the disk drive to lessen shocks resulting from flat drops. The drive also is provided with a shock sensor which provides visual evidence that the drive has undergone a shock of a predetermined threshold. Another shock absorbing system uses a shroud around the connector on the disk drive.

Claims

1. A disk drive comprising:

a base;

at least one disk rotatably attached to said base;

an actuator rotatably attached to said base, said actuator further including a transducer located proximate one end of said actuator, said actuator positioning said transducer over said at least one disk in a transducing relationship with said at least one disk;

a cover attached to said base to form an enclosure for said at least one disk and said transducer, said enclosure having four sides, each of said four sides having a given height;

a connector associated with one of said four sides; and

a unitary gasket and outer perimeter shock bumper which extends between said base and said cover to form a continuous gasket at the joint between said base and said cover and which forms a continuous shock bumper around said enclosure, said shock bumper having a height equal to the height of at least three of said four sides of said enclosure such that an impact on a corner of said enclosure is absorbed by said unitary gasket and outer perimeter shock bumper, said corner being defined by two of said four sides and one of a top side and a bottom side of said enclosure.

2. The disk drive according to claim 1, wherein said unitary gasket and outer perimeter shock bumper further comprises locking means to prevent the unitary gasket and outer perimeter shock bumper from being removed from the joint between said base and said cover.

3. The disk drive according to claim 1, wherein said unitary gasket and outer perimeter shock bumper further comprises locking tabs located such that said locking tabs are inside the enclosure formed by said base and said cover.

4. The disk drive according to claim 1, further including elastomeric bumpers mounted under said base and on top of said cover such that the impact of a flat drop of said disk drive may be absorbed.

5. The disk drive according to claim 1, wherein said unitary gasket and outer perimeter shock bumper includes cutouts therein, said cutouts corresponding to a location of said at least one disk such that said at least one disk may rotate freely within said enclosure formed by said base and said cover.