公开(公告)号：JPH05197952A

公开(公告)日：1993-08-06

申请号：JP16897892

申请日：1992-06-26

Applicant: BASF MAGNETICS GMBH

Inventor： YOOZEFU BIRUKUMAN ,  FURIIDORITSUHI HERUTO ,  GOTSUTOFURIITO RUTSU ,  BERUNTO SHIYORUTEIZUITSUKU ,  HOSE TORARU

IPC: B65H18/04 ,  B65H75/24 ,  G11B5/84

Abstract: PURPOSE: To reduce wearing, to provide a large spring stroke, to provide variable spring force, to be compact and to increase the diameter of a winding axis. CONSTITUTION: A fastening device is provided with segments 2, obtained by dividing a ring in a peripheral direction, the tip faces 13 of these segments 2 are chamfered, these segments 2 are held between intermediate pieces 3 in the shape of mushrooms with the inner surfaces 7 of similar inclination, and these segments 2 are applied with loads outward in a radial direction by a spring element 4.

公开(公告)号：JPH0616286A

公开(公告)日：1994-01-25

申请号：JP33867192

申请日：1992-12-18

Applicant: BASF MAGNETICS GMBH

Inventor： FURIIDORITSUHI HERUTO ,  AUGUSUTO RIIPORUTO ,  BERUNTO SHIYORUTEIZUITSUKU ,  HOSE TORARU

IPC: B65H18/04 ,  B65H18/10 ,  B65H18/14 ,  G11B5/84 ,  G11B15/32 ,  G11B15/66 ,  G11B23/037

Abstract: PURPOSE: To provide an attachable and detachable tape hub tensioning means by centering the hub on the means with high accuracy eve when winding a tape at a high speed with a simple structure and simultaneously press engaging the hub axially without difficulty. CONSTITUTION: The hub tensioning means has a common dealing means for locking winding element with an inner cylindrical cavity in a winding shaft. The hub 1 is uniformly distributed on a periphery along bores 2, 2' in a circumferential direction, and has notches 3, 3' alternately axially directed in one and the other, and finished at an oblique step 4 staring near a geometrical center 5 of the hub, a spring mounted tensioning element mutually operated with the notches 3, 3' of the hub 1 is provided on a periphery of the element, and the element has a radial protrusion to lock with the notches 3, 3' in an axial direction.