US3773334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cartridge ejecting device
Assignee: Panasonic Holdings Corp
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Filing: 1971-08-12
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Granted: 1973-11-20
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Expires: 1991-08-12
Abstract
Abstract A cartridge ejection control arrangement for a multiple track cartridge type recording and reproducing apparatus, in which structure is provided for selectively permitting the ejection of a cartridge automatically after playing or reproducing of the last channel, ejection automatically of the cartridge after the recording or reproduction of each channel, and for permitting continuous operation without ejection. The structure includes a first lever system for operating an ejection mechanism in response to a track selection device, the movement of the first lever system being effected by a cam on the apparatus drive means. The first lever system is operative on the last channel. A second lever system coupled to the first lever system effects the control of the first lever system for ejection of a cratridge after the reproducing or recording of each track. A third lever system is provided to control the operative positions of the first and second lever systems, and to inhibit operation of the ejection mechanism. A fourth lever system responsive to recording in the apparatus automatically controls the third lever system to effect the ejection of a cartridge after the last track has been recorded.
Inventors
- 👤 M Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:46
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/24
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
140 words
A cartridge ejection control mechanism for a multiple track cartridge type recording and reproducing apparatus having an ejection mechanism, drive means including a fly wheel, and track selection means; said control means comprising a rotatable channel switching cam having projections, means for rotating said channel switching cam in response to said track selection means, a second cam coupled for rotation to said drive means, and first lever means, said first lever means comprising means for engaging said projections for operatively coupling said first lever means to said second cam for movement in response to rotation of said second cam, said first lever means being positioned to operatively engage said ejection mechanism in response to movement thereof, said engaging means including means for releasing said first lever means from said projections in response to said movement of said first lever means.
Claim 2
Dependent Claim
140 words
A cartridge ejection control mechanism for a multiple track cartridge type recording and reproducing apparatus having an ejection mechanism, drive means including a fly wheel, and track selection means; said control means comprising a rotatable channel switching cam having projections, means for rotating said channel switching cam in response to said track selection means, a second cam coupled for rotation to said drive means, and first lever means, said first lever means comprising means for engaging said projections for operatively coupling said first lever means to said second cam for movement in response to rotation of said second cam, said first lever means being positioned to operatively engage said ejection mechanism in response to movement thereof, said engaging means including means for releasing said first lever means from said projections in response to said movement of said first lever means.
Claim 3
Dependent Claim
97 words
The ejection control mechanism of claim 1 wherein said first lever means comprises a first axially movable lever normally positioned out of engagement with said second cam and said ejection mechanism, and said engaging means comprises a second axially movable lever positioned to engage said first lever, and a third lever pivoted on said second lever and positioned to engage said projections, whereby engagement between said third lever and said projections urges said second lever to effect said coupling between said first lever and said second cam for urging said first lever to engage said rejection mechanism.
Claim 4
Dependent Claim
48 words
The ejection control mechanism of claim 2 wherein said track selection means comprises a solenoid, comprising ratchet means coupled to said solenoid for rotating said channel switching cam, said projections being positioned to engage said first lever means only in response to the selection of the last track.
Claim 5
Dependent Claim
150 words
The ejection control mechanism of claim 1 further comprising second and third lever systems, said third lever system comprising a control lever having a first position for automatic ejection of cartridges after the last track, a second position for automatically ejecting a cartridge after each track, and a third position for continuous operation of said apparatus, said projections on said switching cam being positioned to engage said first lever means only in response to the selection of the last track, said second lever system being positioned to effect the engagement of said first lever means with said second cam means at the end of each track in response to positioning of said second lever system in said second position, said control mechanism further comprising means responsive to the positioning of said third lever system in said third position for inhibiting engagement between said first lever means and said second cam.
Claim 6
Dependent Claim
51 words
The control mechanism of claim 4 for use in an apparatus having a record lever, further comprising a fourth lever system operatively coupled to said record lever and said third lever system for moving said third lever system to said first position when said record lever is in operative record position.
Claim 7
Dependent Claim
68 words
The ejection control mechanism of claim 1 wherein saId means for rotating said channel switching cam in response to said track selection means comprises a solenoid responsive to selection of tracks in said apparatus, and ratchet means coupled to rotate said channel switching cam in response to selection of tracks, said projections being positioned to engage said first lever means only on the selection of the last track.
Claim 8
Dependent Claim
132 words
The ejection control mechanism of claim 6 wherein said first lever system comprises a first lever mounted for longitudinal and pivotal movement and normally out of engagement with said second cam and said ejection mechanism, a second lever mounted for longitudinal and pivotal movement, and a third lever pivotally mounted on said second lever, said third lever being positioned to engage said projections, whereby said projections urge said second lever by way of said third lever to urge said first lever against said second cam, so that rotation of said second cam urges said first lever into operative engagement with said ejection mechanism, resilient biasing means on said third lever, and means coupling said first and second levers for longitudinal movement whereby said longitudinal movement disengages said third lever from said projections.
Claim 9
Dependent Claim
113 words
The ejection control mechanism of claim 6 further comprising second and third lever means, said third lever means having a first position for automatic ejection of cartridges only after the last track, a second position for automatically ejecting cartridges after each track, and a third position for continuous operation of said apparatus, said third lever means being mounted to operatively couple said second lever means to said solenoid means in said second position, said second lever means being operatively coupled between said solenoid means and said first lever means in said second position for urging said first lever means into operative engagement with said second cam at each operation of said solenoid means.
Claim 10
Dependent Claim
30 words
The ejection control mechanism of claim 8 wherein said third lever means is positioned to decouple said second lever means from said solenoid means in said first and third positions.
Claim 11
Dependent Claim
36 words
The ejection control mechanism of claim 9 wherein said third lever system comprises means responsive to the selection thereof in said third position for holding said first lever system out of operative engagement with said projections.
Claim 12
Dependent Claim
50 words
The ejection control mechanism of claim 6 wherein said third lever means comprises means in said third position for moving said second lever means to move said first lever means out of operative engagement with said projections, whereby operation of said ejection mechanism by said first lever means is inhibited.
Claim 13
Dependent Claim
46 words
The ejection control mechanism of claim 6 wherein said third lever means comprises a lever having first, second and third notches, corresponding to said first, second and third positions, stop means for engaging said notches, and means for resiliently holding said lever in said stop means.
Claim 14
Dependent Claim
52 words
The ejection control mechanism of claim 6 for use in an apparatus having a recond control, further comprising a fourth lever means operatively coupled between said record control and said third lever system for moving said third lever system to said first position in the record mode of operation of said 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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |