公开(公告)号：ZA8103091B

公开(公告)日：1982-05-26

申请号：ZA8103091

申请日：1981-05-08

Applicant: IBM

Inventor： RICHARD MAURICE E ,  MAURICE E RICHARD ,  WINARSKI D

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  B65H

CPC classification number: G11B23/037

公开(公告)号：ZA813091B

公开(公告)日：1982-05-26

申请号：ZA813091

申请日：1981-05-08

Applicant: IBM

Inventor： RICHARD MAURICE E ,  MAURICE E RICHARD ,  WINARSKI D

IPC: G11B23/087 ,  B65H75/28 ,  G11B23/037 ,  B65H

Abstract: A hub for a tape reel used for web material such as magnetic recording tape is disclosed. The reel may be advantageously employed in a reel-to-reel magnetic tape transport where magnetic tape is wound under tension that is converted to radial forces which subject layers of the tape disposed over discontinuities associated with the reel hub to adversely affect the transducing relationship between the reading head and the recording surface of the tape. … The section of the cylindrical tape receiving surface (16) which is associated with a discontinuity is formed to function as a cantilever beam (25A, 25B) with the distal end (28, 29) of the beam being capable of radial inward bending when tape is wound on the hub. The outer portion (11) of the hub is made of relatively compressible material, while the inner portion (10) is relatively solid. Compressibility of the outer portion is enhanced by providing a plurality of circumferentially disposed cylindrically shaped openings (21) which also function to relieve radially induced forces on the tape layers.