Claims
- 1. In combination with a disk cartridge of the type having a housing containing a rotatable data storage disk and hub assembly, the hub assembly having a circular plate centered on the hub and accessible through an aperture in the housing, the disk cover collar comprising:
- collar means attachable to the housing for protecting the data storage disk in a storage mode thereof, the cover means comprising:
- a flexible cover member removably supportable by the housing so as to cover the accessing aperture;
- an annular ring supported by the cover member, the annular ring having an internal diameter disposable about the circular plate on the hub so that the resiliency of the cover member urges the annular ring against the circular plate and hub to permit same to center within the confinement of the annular ring after which the annular ring restrains radial movement of the hub; and
- plural posts supported by the cover member within the annular ring and disposed to engage the bottom surface of the circular plate.
- 2. The disk cover collar of claim 1 further comprising:
- latch means for selectively securing the cover member to the housing.
- 3. The disk cover collar of claim 1 wherein the annular ring is integrally formed as part of the cover member.
- 4. The disk cover collar of claim 3 wherein the cover member and annular ring are made of flexible plastic material.
- 5. In combination with a disk cartridge including a storage disk and hub assembly contained within a housing having a central aperture adjacent to the hub and permitting access thereto, and wherein the hub includes a circular portion centered on the hub and accessible through the aperture, a disk cover collar comprising:
- an axially flexible cover attachable to the housing to enclose the aperture, the cover having an annular ring positioned adjacent the housing aperture when the cover is attached to the housing, the annular ring surrounding the circular portion to align the circular portion and the annular ring, the axial resiliency of the cover effecting mating of the circular portion and the annular ring and thereafter restraining further radial movement of the hub; and
- plural posts supported by the cover member within the annular ring and disposed to engage the bottom surface of the circular portion of the hub.
- 6. The disk cover collar of claim 5 further comprising:
- latch means for selectively securing the cover to the housing.
- 7. The disk cover collar of claim 5 wherein the annular is integrally formed with the cover.
- 8. The disk cover collar of claim 7 wherein the cover and annular ring are made of flexible plastic material.
BACKGROUND OF THE INVENTION
This application is a continuation-in-part of my application having the same title and filed on Jan. 24, 1983 having Ser. No. 460,671, and now abandoned.
The invention relates to a disk cover collar for recording media and more particularly, but not by way of limitation, to a flexible disk cover collar used for engaging and holding a data storage disk immobile in a disk cartridge to prevent radial movement of the disk in the cartridge to prevent radial movement of the disk in the cartridge.
Heretofore, there have been various types of devices to prevent slippage of a data storage disk in a disk cartridge such as U.S. Pat. No. 4,194,228 to Duff and various types of dust covers and locking mechanisms as described in the following patents: U.S. Pat. Nos. 3,465,875 to McKelvey; 3,526,884 to Buslik et al; 3,543,921 to Bradley; 3,785,184 to Wirth; 3,882,701 to Wirth; 3,917,068 to Chency; 4,013,169 to Chency; 4,078,246 to Berthoux et al; 4,089,414 to Sandor; 4,208,117 to Harvey; 4,222,487 to Abel; 3,570,661 to Kersh; 3,543,922 to Charlton; 4,320,425 to Hall and 4,445,155 to Takahaski.
None of the above-mentioned patents specifically are the unique features and advantages of the subject disk cover collar as described herein.
The subject invention prevents radial movement of a data storage disk so the disk and data thereon are not damaged or destroyed which heretofore happened due to radial movement of the disk hitting the sides of the disk cartridge should the cartridge be dropped or hit a foreign object.
The present disk cartridge cover has a disk cover collar which is simple in design and is readily adaptable for mounting on various types of data storage disk cartridges.
The disk cover is flexible for effecting easy mating with a disk hub as opposed to a rigid disk cover that would be difficult to attach to the hub causing added risk of disk contamination and potential radial movement of the disk.
The disk cover collar for engaging a data storage disk and preventing radial movement of the disk includes an annular ring attached to a flexible removable bottom cover of the disk cartridge. The inner diameter of the annular ring engages an outer diameter of an armature plate which is part of a hub in the center of the storage disk. The inner diameter of the annular ring rests around the outer diameter of the armature plate in a close slip fit so that the storage disk is prevented from moving radially in the disk cartridge when the disk is not in use.
The advantages and objects of the invention will become evident from the following detailed description of the drawings when read in connection with the accompanying drawings which illustrate preferred embodiments of the invention.
US Referenced Citations (17)
Continuation in Parts (1)
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Number |
Date |
Country |
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460671 |
Jan 1983 |
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Patent Grant
4748530
