US4114182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette turning mechanism
Assignee: Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
•
Filing: 1977-06-02
•
Granted: 1978-09-12
•
Expires: 1997-06-02
Abstract
Abstract A turning mechanism for a tape recorder adapted for reversing a cassette to permit the recording and playing of both tape tracks of a tape cassette. The mechanism includes receptacle means adapted to be positioned in the cassette nest of the recorder containing the tape drive and tape recording elements. The receptacle is adapted to automatically shift the cassette into and out of the cassette nest and to reverse the cassette. Activation structure is provided for accomplishing the shifting of the receptacle to reverse the cassette. The receptacle is mounted on the end of the shaft for symmetrical turning about the axis of the shaft. The shaft is turnably supported on a swing-axle for rotation about the axis of the swing-axle. Control gears are provided for rotating the shaft and the swing-axle respectively depending upon the position of the receptacle in relation to the remainder of the mechanism.
Inventors
- 👤 Werner Zeh
- 👤 Dieter Kuhnlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:11
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/67502; G11B15/67505
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
310 words
A cassette turning mechanism operable with a tape-cassette utilized for recording and replaying of two opposing tape tracks, the cassette being insertable into a receptacle mounted on a tape recorder, and, at the end of one tape track, either automatic or manual means on the recorder, the receptacle moves the cassette out of a first position in a receiving nest in the recorder which contains the necessary tape drive and tape recording elements, the improvement comprising; a shaft centrally mounted along the edge of the receptacle opposite to the cassette receiving edge and extending substantially perpendicular therefrom, a swing axle with the shaft rotatably mounted thereon, the swing axle running parallel with respect to said opposite receptacle edge, the swing axle being rotatable around its longitudinal axis, a control drive means for rotating the swing axle around its longitudinal axis and pivoting the receptacle and cassette from the first position within the tape recorder to an extended second position, a spur gear mounted on said shaft and engaging said control drive means after the pivot movement of the receptacle to the second position so that the control drive rotates the shaft together with the receptacle by 180°; after which the receptacle is adapted to be returned to the first position and the other tape track can be transduced, the control drive including a control motor, intermediate wheels and a control wheel interconnected so that the control motor drives the control wheel by use of the intermediate wheels, a crank arm is mounted on the swing axle, a pair of links in form of a crank drive coupling the control wheel and the crank arm, the control wheel has a flat side, a face cam mounted on the side of the control wheel, and a rack including a cam follower means engaged by the face cam and being under spring tention.
Claim 2
Dependent Claim
310 words
A cassette turning mechanism operable with a tape-cassette utilized for recording and replaying of two opposing tape tracks, the cassette being insertable into a receptacle mounted on a tape recorder, and, at the end of one tape track, either automatic or manual means on the recorder, the receptacle moves the cassette out of a first position in a receiving nest in the recorder which contains the necessary tape drive and tape recording elements, the improvement comprising; a shaft centrally mounted along the edge of the receptacle opposite to the cassette receiving edge and extending substantially perpendicular therefrom, a swing axle with the shaft rotatably mounted thereon, the swing axle running parallel with respect to said opposite receptacle edge, the swing axle being rotatable around its longitudinal axis, a control drive means for rotating the swing axle around its longitudinal axis and pivoting the receptacle and cassette from the first position within the tape recorder to an extended second position, a spur gear mounted on said shaft and engaging said control drive means after the pivot movement of the receptacle to the second position so that the control drive rotates the shaft together with the receptacle by 180°; after which the receptacle is adapted to be returned to the first position and the other tape track can be transduced, the control drive including a control motor, intermediate wheels and a control wheel interconnected so that the control motor drives the control wheel by use of the intermediate wheels, a crank arm is mounted on the swing axle, a pair of links in form of a crank drive coupling the control wheel and the crank arm, the control wheel has a flat side, a face cam mounted on the side of the control wheel, and a rack including a cam follower means engaged by the face cam and being under spring tention.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |