| 摘要 |
A magnetic tape reel (10) is illustrated which includes a central hub (A) and a back flange (B) and a front flange (C). The central hub (A) is symmetrical about a plane represented by line (26) which is normal to the reel axis (28) passing through the axial center of the reel. Through a section of the central hub there is provided a compression resisting Y-shaped section (D) that includes a transversely widened web stem (44) which carries an enlarged compression-resisting body at the top thereof which carries the tape winding ring (12). The compression-resisting body includes a shoulder (46) and a Y-shaped crossarm (48). Winding of tape on the tape winding ring (12) causes compression forces which are effectively resisted by the structure afforded through the Y-shaped web section (D). Attachment between the back flange (B) and the central hub is had between a ledge supporting surface (78) and a side of the shoulder (46b). Attachment is also had between fingers (84) which penetrate into web recess spaces (18) formed at the web (W). Attachment between the front flange (C) and the central hub (A) is had at a supporting ledge surface (50) and a side (46c) of the shoulder (46) and between cleats (58) carried on the end of a base surface (56) and the spindle mounting ring (14).
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