公开(公告)号：DE3176740D1

公开(公告)日：1988-06-16

申请号：DE3176740

申请日：1981-09-21

Applicant: BASF AG

Inventor： STUMPFI WERNER DR ,  ENGEL FRIEDRICH ,  FITTERER HORST ,  KREIMES NORBERT ,  PFEFFERKORN DIETMAR ,  SCHAEFFER NORBERT ,  SCHMIDTS KURT

IPC: G11B23/04

公开(公告)号：AT16652T

公开(公告)日：1985-12-15

申请号：AT80107895

申请日：1980-12-13

Applicant: BASF AG

Inventor： REIMER KARL-JUERGEN ,  PFEFFERKORN DIETMAR ,  KOESTER EBERHARD DR ,  KREIMES NORBERT ,  ANDRIESSEN WILHELMUS ,  WAGNER WERNER DR ,  WAGNER HERBERT DR CHEM

IPC: G11B23/04

公开(公告)号：DE3168164D1

公开(公告)日：1985-02-21

申请号：DE3168164

申请日：1981-09-21

Applicant: BASF AG

Inventor： STUMPFI WERNER DR ,  BETTINGER GUENTER ,  ENGEL FRIEDRICH ,  FITTERER HORST ,  KREIMES NORBERT ,  PFEFFERKORN DIETMAR ,  SCHAEFFER NORBERT ,  SCHMIDTS KURT

IPC: G11B15/30 ,  G11B23/04

Abstract: The invention relates to a hub for magnetic tape cassettes, especially compact cassettes, and to magnetic tape cassettes possessing such hubs. In a first embodiment, spring means are provided on the inner periphery of the hub and exert radial pressures on the drive spindle, the spring means consisting, for example, of sprung teeth. In a further embodiment, the teeth have a spring rate of from about 1 P/mm to 40 P/mm. In another embodiment, the hub consists of an inner part and an outer part which can be coupled to one another and between which there is some play after coupling. A large number of specific examples of hubs are given to show possible shapes and arrangements of the teeth, and to show the types of material that can be used. In an advantageous embodiment, the inner part of the two-part hub can also be made a part of the drive spindle on the recorder, which inner part can be coupled with the outer part when the drive spindle enters the cassette.

公开(公告)号：CS228141B2

公开(公告)日：1984-05-14

申请号：CS893480

申请日：1980-12-17

Applicant: BASF AG

Inventor： REIMER KARL JUERGEN ,  PFEFFERKORN DIETMAR ,  KOESTER EBERHARD DR ,  KREIMES NORBERT ,  ANDRIESSEN WILHELMUS ,  WAGNER HERBERT DR ,  WAGNER WERNER

IPC: G11B23/04 ,  G11B23/087

Abstract: A cassette system for any type of recording medium in strip or tape form, such as films and magnetic tapes, consists essentially of a housing whose external dimensions match those of a conventional type of cassette, and a protective holder for the recording medium which is wound into at least one roll. The housing and the holder are separate or separable members and can be fitted together. Both are provided with means for inserting the holder into the housing in the correct position, and for introducing the recording medium into the transport apparatus. The housing is provided with opening and closing means. The holder can be designed to be separable from the roll of recording medium. Preferably, the housing is a precision-made article and the holder a low-cost article.