G - Physics – 11 – B
Patent
G - Physics
11
B
242/68, 242/30.7
G11B 23/06 (2006.01) G11B 23/037 (2006.01) G11B 23/087 (2006.01)
Patent
CA 1304060
ABSTRACT OF THE DISCLOSURE A tape reel for a magnetic tape cassette can accurately hold upper and lower reel flanges parallel to each other. The tape reel for a magnetic tape cassette comprises a reel hub assembly including a first reel flange and a cylindrical reel hub integral with the first reel flange and extending from the center of the first flange. The cylindrical reel hub has a support surface at the end remote from the first reel flange onto which to mount a second reel flange. A fastener means and a second reel support projection are formed on the support surface of the reel hub. The fastener means fastens the second reel flange on the support surface. The second reel support projection is formed on the support surface. The second reel flange support projection has a plane opposing the second reel flange accurately parallel to the first reel flange. Since the area of the second reel support projection is substantially smaller than that of the support surface of the reel hub, it is possible to hold the face opposing the second reel flange accurately parallel to the first flange. Therefore, the second reel flange supported by the second reel flange support projection can be accurately held parallel to the first reel flange.
521307
Tateno Shigeru
Urayama Kiyoshi
Gowling Lafleur Henderson Llp
Sony Corporation
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