US3947895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape recorder
Assignee: Alpine Electronics Inc
•
Filing: 1975-01-16
•
Granted: 1976-03-30
•
Expires: 1995-01-16
Abstract
Abstract The function control levers of a magnetic tape recorder are selectively locked into place by a locking lever which is movable transversely to the direction of movement of the control levers. A stop lever which moves in parallel to the direction of movement of the other function control levers includes a cam engaging projection thereon for engaging a cam surface on the locking lever to effect release of the locking lever from a previously locked control lever to stop the operation of the tape recorder with which the apparatus is employed. A pivoted cam is mounted on the stop lever and whenever a function control lever is locked into place, the pivoted end is pushed out of engagement with a cartridge ejection lever by a projection on the locking lever. When the locking lever releases, the cam is placed in position to engage the cartridge ejection lever; so that a second depression of the stop function lever operates through the cam to eject a cartridge or cassette in the recorder.
Inventors
- 👤 Shoji Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:44
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
149 words
In a tape recorder having a plurality of function control levers associated with a locking plate used for controlling the operation of a tape recorder, an improvement including in combination: a cam member pivotally mounted on one of said control levers; a projection on said locking plate extending in a different plane from the plane of said locking plate; spring means interconnecting said cam member and said locking plate, urging the cam member into abutment with the projection on said locking plate thereby to rotate the cam member from a first position to a second position with the locking plate being displaced from a first position to a second position; and means operated by said cam member for ejecting a cassette from the tape recorder when said one control lever is moved from a first to a second position thereof with said locking plate in the first position thereof.
Claim 2
Dependent Claim
149 words
In a tape recorder having a plurality of function control levers associated with a locking plate used for controlling the operation of a tape recorder, an improvement including in combination: a cam member pivotally mounted on one of said control levers; a projection on said locking plate extending in a different plane from the plane of said locking plate; spring means interconnecting said cam member and said locking plate, urging the cam member into abutment with the projection on said locking plate thereby to rotate the cam member from a first position to a second position with the locking plate being displaced from a first position to a second position; and means operated by said cam member for ejecting a cassette from the tape recorder when said one control lever is moved from a first to a second position thereof with said locking plate in the first position thereof.
Claim 3
Dependent Claim
183 words
The combination according to claim 1 further including a driving member for moving said locking plate from the second position thereof to a third position, wherein said locking plate has a cam extension thereon with a cam surface for engagement by a projection on another one of said plurality of control levers such that when said another control lever is moved from a first position to a second position, the projection thereon engages the cam surface on the extension of said locking plate to cause said locking plate to be shifted from its first position to the second position thereof, locking said another control lever in its second position and causing the cam member to rotate to its second position to disengage said cam member from said cassette ejecting means; so that upon subsequent movement of said one control lever from the first position to the second position thereof, such control lever causes said driving member to shift the locking plate to the third position thereof, whereby said another control lever is released and the operation of the tape recorder is thereby stopped.
Claim 4
Dependent Claim
44 words
The combination according to claim 2 wherein said driving member is a separate member having laterally extending ends, one of which is engageable with said cam member and the other of which is operable to shift said locking plate to said third position thereof.
Claim 5
Dependent Claim
21 words
The combination according to claim 2 wherein said driving member is formed as an integral part of said one control lever.
Claim 6
Dependent Claim
44 words
The combination according to claim 2 further including a second spring means coupled to said locking plate for retracting said locking plate to the first position thereof upon movement of said one control lever from the second position thereof to the first position thereof.
Claim 7
Dependent Claim
58 words
The combination according to claim 5 wherein the projection on said locking plate is located so that when said locking plate is returned to the first position thereof, said cam member is rotated under the action of said first spring means to the first position thereof with a portion of the cam member engaging said cassette ejecting means.
Claim 8
Dependent Claim
91 words
The combination according to claim 6 wherein the relative arrangement of the parts of said locking plate and said driving member is such that said driving member does not move said locking plate to the third position thereof when said locking plate is in its first position upon movement of said one control lever from the first position to the second position thereof, so that said cassette ejecting means is engaged by said cam member when said one control lever is so moved to eject a cassette from the tape recorder.
References Cited (Backward Citations)
US3603743A
Cited
US3765685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |