US4330802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic cassette tape record and play apparatus
Assignee: Olympus Corp
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Filing: 1980-03-18
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Granted: 1982-05-18
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Expires: 2000-03-18
Abstract
Abstract A magnetic cassette tape record and play apparatus wherein the magnetic head thereof is fixed, comprises a push member cooperating with an operation button and which is so disposed as to abut against a pad spring received in a tape cassette. When the tape cassette is loaded or ejected in the stop mode, the push member is pressed against the pad spring to deform it against its urging force, thereby locking the cassette tape in a position untouched by the magnetic head. When the operation button is depressed for the recording or reproduction mode, then the push member is removed from the pad spring, thereby causing the pressure pad to be pressed against the magnetic head with the cassette tape disposed between the pressure pad and the magnetic head.
Inventors
- 👤 Toshikazu Kato
- 👤 Sinichi Saitou
- 👤 Seizo Watanabe
- 👤 Toyoo Nishiyama
- 👤 Misao Shimdda
- 👤 Tutomu Shibata
- 👤 Kenji Kimura
- 👤 Ken Satoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:58
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/18; G11B15/1883; G11B15/60; G11B15/62
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
212 words
A magnetic cassette tape recording and playing apparatus for use with a tape cassette containing tape, a pressure pad and a pad spring on which the pressure pad is mounted, the apparatus comprising: operation means provided with an operation button for setting the operation mode of the apparatus; a fixed magnetic head capable of abutting against the pressure pad of the pad spring received in a tape cassette; and a push member cooperatively coupled with said operation means such that when a tape cassette is loaded or ejected while the apparatus is in the stop mode, said push member is pressed against the pad spring via the tape in the tape cassette to deform the pad spring inwardly of the tape cassette against the urging force of the pad spring, thereby moving the tape in the cassette to a position untouched by the magnetic head, and, when a tape cassette is loaded or ejected when the operation button is set for setting the apparatus in the recording or reproduction mode, said push member is removed by said operation means from the pad spring, thereby causing the pressure pad to be pressed, by the pad spring, against the fixed magnetic head with the cassette tape disposed between the pressure pad and magnetic head.
Claim 2
Dependent Claim
212 words
A magnetic cassette tape recording and playing apparatus for use with a tape cassette containing tape, a pressure pad and a pad spring on which the pressure pad is mounted, the apparatus comprising: operation means provided with an operation button for setting the operation mode of the apparatus; a fixed magnetic head capable of abutting against the pressure pad of the pad spring received in a tape cassette; and a push member cooperatively coupled with said operation means such that when a tape cassette is loaded or ejected while the apparatus is in the stop mode, said push member is pressed against the pad spring via the tape in the tape cassette to deform the pad spring inwardly of the tape cassette against the urging force of the pad spring, thereby moving the tape in the cassette to a position untouched by the magnetic head, and, when a tape cassette is loaded or ejected when the operation button is set for setting the apparatus in the recording or reproduction mode, said push member is removed by said operation means from the pad spring, thereby causing the pressure pad to be pressed, by the pad spring, against the fixed magnetic head with the cassette tape disposed between the pressure pad and magnetic head.
Claim 3
Dependent Claim
119 words
The apparatus according to claim 1, wherein: the pad spring comprises a lateral wall, and a pair of bent attachment crosswise extending from the lateral wall of the pad spring on opposite sides of the pressure pad, said pair of bent attachments being symmetrical with respect to the pressure of the pad spring; the push member comprises an abutment capable of being pressed against the bent attachment of the spring, and urging means for urging the abutment toward the pad spring; and when the apparatus is in the stop mode, the abutment of the push member is pressed against the bent attachment of the pad spring by the urging force of the urging means, thereby deforming the pad spring.
Claim 4
Dependent Claim
32 words
The apparatus according to claim 2, wherein the push member is forked shape having two prongs; and the abutment comprises a push pin fixed to the forward end of the respective prongs.
Claim 5
Independent Claim
71 words
The apparatus according to any one of claims 1, 2 or 3, wherein the push member is set above the operation means in a state whereby it is rotatable by the urging force of urging means, and, during the loading of the tape cassette, said push member is engaged with the tape cassette and is rotated from an upper to a lower position against the urging force of said urging means.
Claim 6
Dependent Claim
105 words
The apparatus according to claim 4, wherein: the operation means is slideable; a tension spring is stretched between the operation means and a rotatable pinch roller lever, one end of the pinch roller lever supporting a pinch roller; the pinch roller lever is rotated by the urging force of the tension spring, thereby causing the pinch roller to be engaged with a capstan shaft of the apparatus; and when the apparatus is in the stop mode, the operation means is engaged with the pinch roller lever, causing the pinch roller to be removed from the capstan shaft against the urging force of the tension spring.
Claim 7
Independent Claim
51 words
The apparatus according to any one of claims 1, 2 or 3, wherein the operation button is fitted to a slidable operation board; and the push member is arranged parallel with the operation board in a state slidable in the same direction as that in which the operation board is slidable.
Claim 8
Dependent Claim
86 words
The apparatus according to claim 6, wherein the operation means comprises a rotatable lever, one end of which is engaged with the operation board, and the other end of which is engaged, in the stop mode, with a rotatable pinch roller lever, one end of the pinch roller lever supporting the pinch roller so urged by urging means as to be engaged with a capstan shaft, thereby causing the pinch roller to be removed from the capstan shaft against the urging force of the urging means.
Claim 9
Independent Claim
49 words
The apparatus according to any one of claims 1, 2 or 3, further comprising a pinch roller mounted for cooperation with a rotatably driven capstan, said pinch roller being on the same side of the tape as the fixed magnetic head when the cassette is loaded in the apparatus.
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) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |