公开(公告)号：ZA8602405B

公开(公告)日：1986-11-26

申请号：ZA8602405

申请日：1986-04-02

Applicant: BASF AG

Inventor： SCHAEFFER NORBERT ,  PFEFFERKORN DIETMAR ,  SOLD ROLAND ,  BRINKMANN UWE ,  KREITNER LUDWIG ,  SIGWALT ROLAND

IPC: G11B23/087 ,  G11B

CPC classification number: G11B23/08764 ,  C10M129/10 ,  C10M129/40 ,  C10M129/54 ,  C10M129/58 ,  C10M133/52 ,  C10M133/56 ,  C10M135/30 ,  C10M137/10 ,  C10M141/10 ,  C10M159/20 ,  C10M159/22 ,  C10M159/24 ,  C10M163/00 ,  C10M2219/046

Abstract: In a tape cassette possessing symmetrically arranged support liners, a compressive force dependent on the tape roll diameter is exerted by the liner and utilized for centering the roll and the tape. Force/diameter relationships, and embodiments of folded liners for achieving individual forces are described. A novel dynamic liner arrangement can be used in any tape cassette possessing high winding speeds and sensitive tapes, with frequently alternating rewind/playback operation.

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：YU80372A

公开(公告)日：1981-02-28

申请号：YU80372

申请日：1972-03-27

Applicant: BASF AG

Inventor： NORBERT SCHAEFFER ,  SCHAEFFER NORBERT ,  HORST FITTERER ,  FITTERER HORST ,  KARL UH ,  UH KARL ,  GEORG SCHNELL ,  SCHNELL GEORG

IPC: G11B15/60 ,  G11B20060101 ,  G11B15/00 ,  G11B15/26 ,  G11B23/04 ,  G11B23/08

公开(公告)号：CA971936A

公开(公告)日：1975-07-29

申请号：CA137843

申请日：1972-03-22

Applicant: BASF AG

Inventor： SCHAEFFER NORBERT ,  SCHNELL GEORG ,  FITTERER HORST ,  UHL KARL ,  ANDRIESSEN WILHELMUS

IPC: G11B15/60 ,  G11B20060101 ,  G11B15/00 ,  G11B15/26 ,  G11B23/04 ,  G11B23/08 ,  G11B23/087

Abstract: Guide elements for magnetic tapes wound or to be wound in the form of packs on flangeless spools, the guide elements being movable in the plane of rotation of the packs. At least part of the guide elements is located between the pack and the outermost winding and thus constantly guides the tape as it is wound or unwound, resulting in optimal tape guidance and consequently in a stable and accurate winding on the spool.

公开(公告)号：HK78091A

公开(公告)日：1991-10-11

申请号：HK78091

申请日：1991-10-03

Applicant: BASF AG

Inventor： SCHAEFFER NORBERT ,  PFEFFERKORN DIETMAR ,  SOLD ROLAND ,  BRINKMANN UWE ,  KREITNER LUDWIG DR ,  SIGWALT ROLAND

IPC: G11B23/087

Abstract: In a tape cassette possessing symmetrically arranged support liners, a compressive force dependent on the tape roll diameter is exerted by the liner and utilized for centering the roll and the tape. Force/diameter relationships, and embodiments of folded liners for achieving individual forces are described. A novel dynamic liner arrangement can be used in any tape cassette possessing high winding speeds and sensitive tapes, with frequently alternating rewind/playback operation.

公开(公告)号：AU6154390A

公开(公告)日：1991-04-03

申请号：AU6154390

申请日：1990-08-10

Applicant: BASF AG

Inventor： MANZKE KLAUS ,  GLINIORZ LOTHAR ,  SCHOETTLE KLAUS ,  HUCK ARNO ,  SCHAEFFER NORBERT

IPC: G11B23/087

公开(公告)号：DE3766332D1

公开(公告)日：1991-01-03

申请号：DE3766332

申请日：1987-08-12

Applicant: BASF AG

Inventor： HOFFRICHTER BERND ,  BOZIDAR PAVELKA ,  PFEFFERKORN DIETMAR ,  SCHAEFFER NORBERT ,  GOETZ KLAUS

IPC: G11B23/087

Abstract: A right parallelepiped cassette is provided with a guide insert as a separate housing part which can be produced and machined separately and very precisely, contains important guide elements of the cassette and can be oriented in a predetermined manner on reference surfaces of the remainder of the cassette housing and fastened thereon. In a particular embodiment, the cassette contains detachably fastened spacing elements for measuring the alignment of the guide elements. The cassette can advantageously be used for any type of recording media in tape or strip form.

公开(公告)号：AU596685B2

公开(公告)日：1990-05-10

申请号：AU7687787

申请日：1987-08-14

Applicant: BASF AG

Inventor： HOFFRICHTER BERND ,  PAVELKA BOZIDAR ,  PFEFFERKORN DIETMAR ,  SCHAEFFER NORBERT ,  GOETZ KLAUS

IPC: G11B23/087

Abstract: A right parallelepiped cassette is provided with a guide insert as a separate housing part which can be produced and machined separately and very precisely, contains important guide elements of the cassette and can be oriented in a predetermined manner on reference surfaces of the remainder of the cassette housing and fastened thereon. In a particular embodiment, the cassette contains detachably fastened spacing elements for measuring the alignment of the guide elements. The cassette can advantageously be used for any type of recording media in tape or strip form.

公开(公告)号：AU583604B2

公开(公告)日：1989-05-04

申请号：AU5559886

申请日：1986-04-02

Applicant: BASF AG

Inventor： SCHAEFFER NORBERT ,  PFEFFERKORN DIETMAR ,  SOLD ROLAND ,  BRINKMANN UWE ,  KREITNER LUDWIG ,  SIGWALT ROLAND

IPC: G11B23/087 ,  G11B23/04

Abstract: In a tape cassette possessing symmetrically arranged support liners, a compressive force dependent on the tape roll diameter is exerted by the liner and utilized for centering the roll and the tape. Force/diameter relationships, and embodiments of folded liners for achieving individual forces are described. A novel dynamic liner arrangement can be used in any tape cassette possessing high winding speeds and sensitive tapes, with frequently alternating rewind/playback operation.

公开(公告)号：ZA8706021B

公开(公告)日：1989-04-26

申请号：ZA8706021

申请日：1987-08-14

Applicant: BASF AG

Inventor： HOFFRICHTER BERND ,  BERND HOFFRICHTER ,  PAVELKA BOZIDAR ,  BOZIDAR PAVELKA ,  PFEFFERKORN DIETMAR ,  DIETMAR PFEFFERKORN ,  SCHAEFFER NORBERT ,  NORBERT SCHAEFFER ,  GOETZ KLAUS ,  KLAUS GOETZ

IPC: G11B23/087 ,  G11B

CPC classification number: G11B23/08757 ,  G11B23/087