US3697015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic operating control for magnetic recording and reproducing apparatus
Assignee: Victor Company of Japan Ltd
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Filing: 1971-01-26
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Granted: 1972-10-10
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Expires: 1991-01-26
Abstract
Abstract An automatic operating apparatus for magnetic recording and reproducing apparatus in which there is provided a cam integrally revolving by revolution of an operating knob, means for engaging a pinch roller cooperating with a capstan and an idler cooperating with a reel disk in a waiting position in association with the revolution of the cam, and means for releasing the pinch roller and idler from the waiting position by closing of a timer switch at a pre-set time thus starting an automatic recording or reproducing operation. There is further provided means for detecting the presence or absence of a magnetic tape and means for returning the cam to the stop position thereby stopping the recording or reproducing operation.
Inventors
- 👤 Mitsuo Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:04
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10; G11B15/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
145 words
An automatic operating apparatus for a magnetic recording and reproducing apparatus comprising a cam integral with and revolving by revolution of an operating knob, means for urging said cam always to return in rotation to a stop position, means for engaging with the cam rotated before automatic starting of said magnetic recording and reproducing apparatus against force of said urging means, a pinch roller which is capable of contacting a capstan for driving a magnetic tape, an idler for driving a reel disk, means for engaging said pinch roller and idler in a position of waiting in association with the revolution of said cam, a timer switch for closing a power source circuit at a preset time, and a plunger means operating by closing of said timer switch and releasing said pinch roller and idler from a position of waiting to a position of action.
Claim 2
Dependent Claim
145 words
An automatic operating apparatus for a magnetic recording and reproducing apparatus comprising a cam integral with and revolving by revolution of an operating knob, means for urging said cam always to return in rotation to a stop position, means for engaging with the cam rotated before automatic starting of said magnetic recording and reproducing apparatus against force of said urging means, a pinch roller which is capable of contacting a capstan for driving a magnetic tape, an idler for driving a reel disk, means for engaging said pinch roller and idler in a position of waiting in association with the revolution of said cam, a timer switch for closing a power source circuit at a preset time, and a plunger means operating by closing of said timer switch and releasing said pinch roller and idler from a position of waiting to a position of action.
Claim 3
Dependent Claim
62 words
The automatic operating apparatus of claim 1, which further comprises means for detecting presence or absence of said magnetic tape and means actuated by detection of absence of the magnetic tape by said detecting means and releasing engagement of said cam engaging means, wherein said cam released of said engagement is returned in rotation to the stop position by said urging means.
Claim 4
Dependent Claim
46 words
The automatic operating apparatus of claim 2, which further comprises a lever means which rotatably carries said pinch roller, said lever means having a portion in contact with said cam and revolves by returning revolution of said cam to separate said pinch roller from said capstan.
Claim 5
Dependent Claim
95 words
The automatic operating apparatus of claim 2, in which said engagement releasing means comprises a lever movable by detection of said detecting means, a revolvable lever pivotally mounted on said lever, a rotating member rotatable by its inertia for a while after opening of a power source circuit of a motor, and a projection provided on said rotating member abutting said revolvable lever which has moved during rotation due to inertia of said rotating member, wherein said revolvable lever is revolved by said projection so as to release the engagement of said cam engaging means.
Claim 6
Dependent Claim
43 words
The automatic operating apparatus of claim 1, in which said cam has a non-circular curved portion and said urging means comprises a lever means always compressing the peripheral edge of said cam and urging said cam to rotate along said non-circular curved portion.
Claim 7
Dependent Claim
57 words
The automatic operating apparatus of claim 4, in which said magnetic recording and reproducing apparatus has a single drive motor, said capstan and said reel disk being transmitted a rotating force from said motor and rotated and said rotating member rotating by its inertia for a while after opening of the power source circuit of said motor.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |