公开(公告)号：FR2482758A1

公开(公告)日：1981-11-20

申请号：FR8109603

申请日：1981-05-14

Applicant: NORTHERN TELECOM INC

Inventor： SIMS DEWEY M JR

IPC: G11B15/675 ,  G11B25/06 ,  G11B23/04

Abstract: A cassette or cartridge-loading tape transport is disclosed, for use in magnetic recorders and the like, especially data recorders. The device includes tracks for slidably receiving a cassette or cartridge. A plate is slidably supported below the tracks and a drive motor is mounted on the plate. A constant-force spring biases the plate to a forward position. A plurality of lever arms supporting rollers are pivotally mounted adjacent the plate. Each lever arm includes a cam surface cooperating with a cam surface on the plate so that the rollers on the arms are moved from a lowered, inoperative position to a raised position engaging, locating and locking the cassette or cartridge within the recorder. A constant-force spring biases the lever arms to a raised position.

公开(公告)号：CA1153111A

公开(公告)日：1983-08-30

申请号：CA384477

申请日：1981-08-24

Applicant: NORTHERN TELECOM INC

Inventor： SIMS DEWEY M JR

IPC: G11B5/10 ,  G11B5/48

Abstract: METHOD AND APPARATUS FOR MOUNTING MAGNETIC TAPE HEADS An arrangement for mounting magnetic tape heads in magnetic tape players, recorders, and other similar machines, comprises a mounting plate shaped for fixedly connecting a tape head therewith. A housing portion of the machine includes a base on which the mounting plate is pivotally supported for side-to-side, i.e., pivotal, movement, and housing sidewalls between which the side edges of the mounting plate are received. An adjustment mechanism is provided to selectively pivot the mounting plate into an aligned position, wherein the magnetic recording "gaps" of the tape head are in a substantially perpendicular relationship with the direction of motion of a magnetic tape sliding thereover. Channels are disposed along the mounting plate side edges and the adjacent housing sidewalls, and a solidifying plastic material is injected therein to form keys which positively retain the tape head in the aligned position.

公开(公告)号：IT8121709D0

公开(公告)日：1981-05-14

申请号：IT2170981

申请日：1981-05-14

Applicant: NORTHERN TELECOM INC

Inventor： SIMS DEWEY M JR

IPC: G11B15/675 ,  G11B

Abstract: A cassette or cartridge-loading tape transport is disclosed, for use in magnetic recorders and the like, especially data recorders. The device includes tracks for slidably receiving a cassette or cartridge. A plate is slidably supported below the tracks and a drive motor is mounted on the plate. A constant-force spring biases the plate to a forward position. A plurality of lever arms supporting rollers are pivotally mounted adjacent the plate. Each lever arm includes a cam surface cooperating with a cam surface on the plate so that the rollers on the arms are moved from a lowered, inoperative position to a raised position engaging, locating and locking the cassette or cartridge within the recorder. A constant-force spring biases the lever arms to a raised position.

公开(公告)号：CA1157148A

公开(公告)日：1983-11-15

申请号：CA378213

申请日：1981-05-25

Applicant: NORTHERN TELECOM INC

Inventor： SIMS DEWEY M JR

IPC: G11B15/675 ,  G11B15/68

Abstract: CARTRIDGE-LOADING APPARATUS FOR TAPE RECORDER DRIVES A cassette or cartridge-loading tape transport is disclosed, for use in magnetic recorders and the like, especially data recorders. The device includes tracks for slidably receiving a cassette or cartridge. A plate is slidably supported below the tracks and a drive motor is mounted on the plate. A constant-force spring biases the plate to a forward position. A plurality of lever arms supporting rollers are pivotally mounted adjacent the plate. Each lever arm includes a cam surface cooperating with a cam surface on the plate so that the rollers on the arms are moved from a lowered, inoperative position to a raised position engaging, locating and locking the cassette or cartridge within the recorder. A constant-force spring biases the lever arms to a raised position.