Wrap around shock absorber for disc drives

• US 6,324,054 B1
• Filed: 04/11/2000
• Issued: 11/27/2001
• Est. Priority Date: 01/26/1998
• Status: Expired due to Term

• Current Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Original Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Inventors: Yong, Pow-Hing, Toh, Michael Joo-Chiang, Jierapipapatanakul, Niroot, Chee, Wai Onn, Lim, Choon Kiat, Liu, Joseph Cheng-Tsu
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): DUONG, HUNG V
• Application Number:
  US09/546,674
• Time in Patent Office: 595 Days
• Field of Search: 361/685, 361/683, 361/684, 361/728, 361/730, 248/60, 248/581, 248/609, 248/611, 248/615, 248/634, 248/635, 248/638, 360/97.01, 360/137
• US Class Current: 361/679.34
• CPC Class Codes: G11B 33/08 Insulation or absorption of undesired vibrations or sounds
• CPC Class Codes: G11B 33/124 of the single recording/reproducing device, e.g. disk drive, onto a chassis

Abstract

The shock absorber apparatus for a disc drive is a molded polymeric enclosure adapted to receive and retain a disc drive. One preferred embodiment of the present invention has a shock absorbing material of a first thickness adjacent a critical region of the drive and a second thickness of shock absorbing material adjacent a non-critical region of the disc drive. The first thickness is greater than the second thickness in order to absorb a greater shock load to protect the critical region of the disc drive.

Claims

1. A shock absorber apparatus for encapsulating a disc drive, wherein the disc drive has at least one critical region and at least one non-critical region, the shock absorbing apparatus comprising:

an enclosure sized to receive a disc drive therein, the enclosure being made of a shock absorbing material having a first portion having a first thickness adapted to contact and cover a critical region of the disc drive, and a second portion having a second thickness adapted to contact and cover a non-critical region of the disc drive, wherein the first portion has a greater thickness than the thickness of the second portion.

2. The shock absorber apparatus of claim 1 wherein the disc drive has a critical region that comprises a corner of the disc drive.

3. The shock absorber apparatus of claim 1 wherein the first thickness is greater than 30 mils and less than 500 mils.

4. The shock absorber apparatus of claim 1 wherein the shock absorbing material comprises a polymeric material selected from a group consisting of natural rubber, synthetic rubber, and plastic.

5. The shock absorber apparatus of claim 1 wherein the enclosure includes an aperture adapted for passing the disc drive therethrough into the enclosure.

6. A disc drive system comprising:

a disc drive;

a shock absorber enclosure enclosing the disc drive having first portions of a shock absorbing material having a first thickness adapted to contact and cover each critical region of the disc drive, and second portions of the shock absorbing material having a second thickness adapted to contact and cover each non-critical region of the disc drive, wherein the first portions have a greater thickness than the second portions.

7. The disc drive system of claim 6 wherein at least one critical region comprises a corner of the disc drive.

8. The disc drive system of claim 6 wherein the first thickness is greater than 30 mils and less than 500 mils.

9. The disc drive system of claim 6 wherein the shock absorber comprises material selected from a group consisting essentially of natural rubber, synthetic rubber, and plastic.

10. A shock absorber apparatus for encapsulating a disc drive, wherein the disc drive has at least one critical region and at least one non-critical region, the shock absorbing apparatus comprising:

a one piece molded polymeric generally box shaped enclosure sized to elastically receive and retain a disc drive therein, the enclosure being made of a shock absorbing material having a first portion having a first thickness adapted to contact and cover a critical region of the disc drive, and a second portion having a second thickness adapted to contact and cover a non-critical region of the disc drive, wherein the first portion has a greater thickness than the thickness of the second portion.

11. The apparatus according to claim 10 wherein the enclosure has a top portion, a bottom portion, a pair of opposite side walls and left and right end walls, and thickened corner portions between the side walls and end walls.

12. The apparatus according to claim 10 wherein the molded enclosure is made of EPDM rubber.

13. The apparatus according to claim 11 wherein the side walls and end walls each has an aperture therethrough.

14. A disk drive system comprising:

a disk drive; and

a shock absorbing means comprising a one piece molded polymeric structure having a box shaped molded body with a central cavity sized to elastically receive and hold the disc drive, enclosing a substantial portion of the disc drive.

15. A shock absorbing covering for encapsulating a disc drive, wherein the disc drive has a plurality of critical regions and a plurality of non-critical regions, the shock absorbing covering comprising:

an enclosure sized to receive a disc drive therein, the enclosure being made entirely of a flexible shock absorbing material, the enclosure including a plurality of first portions having a first thickness, each of the first portions covering and contacting a corresponding one of the plurality of critical regions, and a plurality of second portions each having a second thickness, each of the second portions covering and contacting a corresponding one of the plurality of non-critical regions, wherein the first portion has a greater thickness than the thickness of the second portion.

16. The shock absorbing covering of claim 15 wherein the first thickness is greater than 30 mils and less than 500 mils.

17. The shock absorbing covering of claim 15 wherein the flexible shock absorbing material comprises a material selected from a group consisting of natural rubber, synthetic rubber, and plastic.

18. The shock absorber covering of claim 15 wherein the covering includes an aperture adapted for passing the disc drive therethrough into the enclosure.

19. A disc drive system comprising:

a disc drive having a plurality of critical regions and a plurality of non-critical regions;

an enclosure sized to receive a disc drive therein, the enclosure being made entirely of a flexible shock absorbing material, the enclosure including a plurality of first portions having a first thickness, each of the first portions covering and contacting a corresponding one of the plurality of critical regions, and a plurality of second portions each having a second thickness, each of the second portions covering and contacting a corresponding one of the plurality of non-critical regions, wherein the first portion has a greater thickness than the thickness of the second portion.

20. The disc drive system of claim 19 wherein the disc drive includes at least one corner and wherein at least one of the critical regions comprises the at least one corner of the disc drive.

21. The disc drive system of claim 19 wherein the first thickness is greater than 30 mils and less than 500 mils.

22. The disc drive system of claim 19 wherein the flexible shock absorbing material comprises material selected from a group consisting essentially of natural rubber, synthetic rubber, and plastic.