US4612591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette tape recorder with rotary actuated ejection
Assignee: TANASHIN DENKI Co Ltd 19-3 2-CHOME SHINMACHI SETAGAYA-KU TOKYO JAPAN A CORP OF JAPAN
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Filing: 1984-11-05
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Granted: 1986-09-16
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Expires: 2004-11-05
Abstract
Abstract In stopping a tape recorder and taking out a tape cassette, an ejecting operation member is softly pushed in and then released, and an ejection switch is temporarily turned off. Thereupon, an solenoid is deenergized, so that a rotation transmission control member is disengaged from a driven rotator to allow the driven rotator to engage a driving rotator. A movable contact of a motor switch is transferred from a second stationary contact to a first stationary contact. Thus, the rotatory force of a motor is transmitted to the driven rotator through the driving rotator. As the driven rotator rotates, an ejection mechanism is operated.
Inventors
- 👤 Shinsaku Tanaka
- 👤 Toshio Yoshimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:24
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/02; G11B15/10; G11B15/67544; G11B15/67555; G11B15/67557
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
384 words
A cassette tape recorder comprising: a cassette holder movable between a cassette loading position and a cassette releasing position; a motor switch having first and second stationary contacts and a movable contact adapted to selectively touch the same and normally urged toward the first stationary contact side by a spring force; a tape driving motor one pole of which is connected to one terminal of a power source through the first stationary contact and the movable contact of the motor switch, and the other pole of which is connected to the other terminal of the power source; a changeover switch interposed between the second stationary contact of the motor switch and the one terminal of the power source, and adapted to be on when the cassette holder is in the cassette loading position and to be off when the cassette holder is in the cassette releasing position; a solenoid connected in series with a normallyclosed ejection switch between the second stationary contact of the motor switch and the other terminal of the power source, and adapted to hold the movable contact of the motor switch on the second stationary contact side when excited; an ejecting operation member for temporarily turning off the ejection switch; a driving rotator normally rotated by the motor; a driven rotator adapted to hold the movable contact of the motor switch on the second stationary contact side when located in a first pause position off the driving rotator, and to be rotated by the rotatory force of the driving rotator when engaged therewith; an ejection mechanism actuated by the rotatory force of the driven rotator to move the cassette holder from the cassette loading position to the cassette releasing position; and a rotation transmission control member adapted to normally hold the driven rotator in the first pause position off the driving rotator, to hold the driven rotator in a second pause position off the driving rotator immediately before the driven rotator engages the driving rotator after once releasing the driven rotator, urged by the solenoid, when the solenoid is excited, and to hold the driven rotator again in the first pause position after releasing the driven rotator again to cause the driven rotator to engage the driving rotator so that the ejection mechanism is actuated when the solenoid is deenergized.
Claim 2
Dependent Claim
384 words
A cassette tape recorder comprising: a cassette holder movable between a cassette loading position and a cassette releasing position; a motor switch having first and second stationary contacts and a movable contact adapted to selectively touch the same and normally urged toward the first stationary contact side by a spring force; a tape driving motor one pole of which is connected to one terminal of a power source through the first stationary contact and the movable contact of the motor switch, and the other pole of which is connected to the other terminal of the power source; a changeover switch interposed between the second stationary contact of the motor switch and the one terminal of the power source, and adapted to be on when the cassette holder is in the cassette loading position and to be off when the cassette holder is in the cassette releasing position; a solenoid connected in series with a normallyclosed ejection switch between the second stationary contact of the motor switch and the other terminal of the power source, and adapted to hold the movable contact of the motor switch on the second stationary contact side when excited; an ejecting operation member for temporarily turning off the ejection switch; a driving rotator normally rotated by the motor; a driven rotator adapted to hold the movable contact of the motor switch on the second stationary contact side when located in a first pause position off the driving rotator, and to be rotated by the rotatory force of the driving rotator when engaged therewith; an ejection mechanism actuated by the rotatory force of the driven rotator to move the cassette holder from the cassette loading position to the cassette releasing position; and a rotation transmission control member adapted to normally hold the driven rotator in the first pause position off the driving rotator, to hold the driven rotator in a second pause position off the driving rotator immediately before the driven rotator engages the driving rotator after once releasing the driven rotator, urged by the solenoid, when the solenoid is excited, and to hold the driven rotator again in the first pause position after releasing the driven rotator again to cause the driven rotator to engage the driving rotator so that the ejection mechanism is actuated when the solenoid is deenergized.
Claim 3
Dependent Claim
55 words
The cassette tape recorder according to claim 1, wherein said ejection mechanism can be also manually actuated to move the cassette holder from the cassette loading position to the cassette releasing position by moving the ejecting operation member through a greater distance than the distance required for changing the ejection switch from "on" to "off".
Claim 4
Dependent Claim
42 words
The cassette tape recorder according to claim 1, wherein said motor switch, changeover switch, ejection switch, solenoid, driven rotator, and rotation transmission control member are integrally mounted on a unit chassis, which is removably attached to the chassis of the tape recorder.
Claim 5
Dependent Claim
26 words
The cassette tape recorder according to claim 1, wherein a starting switch capable of manual "on"-"off" transfer operation is connected in series with the changeover switch.
References Cited (Backward Citations)
US4163997A
Cited
US4441129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |