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Tape reel for tape cassette
   
Document Number
US Patent 6213425
Issued Date
April 10, 2001
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Abstract
A tape reel for a tape cassette capable of substantially preventing deformation thereof, even when it is thin-walled to substantially reduce a cycle time required for a molding step of the tape reel. The tape reel includes a reel hub and a disc-like flange. Reinforcing ribs include an annular rib arranged on an outer periphery of a disc-like flange and a plurality of linear ribs arranged on an outer surface of the disc-like flange so as to extend from a core stabilizing surface rib to the annular rib. The linear ribs are so arranged that each of the linear ribs intersects at least one of the other linear ribs at a position which is further than a midpoint between the core stabilizing surface rib and the annular rib.
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Number of Claims:
28
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Owner
Published
April 10, 2001
Application Number
08/869,054
Filed
June 4, 1997
US Classification
242/614.1   242/345 242/610.6 360/132 D8/358
Int'l Classification
G11B   23/087   (20060101)   G11B   23/02   (20060101)   G11B   23/037   (20060101)  
Examiner
Priority Data
Jun 13, 1996 [JP] 8-172875
USPTO Field of Search
242/614.1   242/345   242/118.31   242/610.6   360/132 D   14/122 D   8/358  
Related Patents
6533216 - System and methods for providing under-wrap access to optical fiber wound onto spools - Owned by Corning Incorporated (Corning, NY)

An optical fiber shipping spool, winding system and method for allowing automated winding of an accessible lead meter portion of optical fiber onto the spool. The spool comprises primary and lead meter barrels separated by an outboard flange. The outboard flange has a slot extending to its periphery, the slot providing a path for fiber between the lead meter and primary barrels, the slot having an inlet facing the lead meter barrel and an outlet facing the primary barrel. The slot is angled such that when fiber being wound onto the lead meter barrel comes into contact with the slot inlet, the fiber is automatically drawn into the slot and then guided by the slot onto the primary barrel. According to another aspect, a high-strength rib configuration is disclosed including a plurality of curved, intersecting ribs formed on a flange of the spool.

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Description
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