US3810241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mode changeover apparatus for a miniature type cassette tape recorder
Assignee: Individual
•
Filing: 1971-01-07
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Granted: 1974-05-07
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Expires: 1991-01-07
Abstract
Abstract In a miniature type cassette tape recorder, a mode changeover apparatus can perform changeover operation between a recording or reproducing mode, tape fast forwarding mode, tape rewinding mode, and stop mode etc. by operating a single operating button. In accordance with operation of the operating button, a driving plate on which magnetic heads and a pinch roller are mounted slides in a longitudinal direction or swings in a lateral direction. By the lateral swinging movement of the driving plate, one of two idlers provided between two pulleys adapted for rotating spools contained within a cassette is brought into contact with one of the two pulleys to effect fast forwarding or rewinding of the tape.
Inventors
- 👤 S Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:14
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/02; G11B15/10; G11B15/18; G11B15/1883
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
369 words
A mode change-over apparatus for a miniature cassette tape recorder, comprising: a base plate for supporting a driving motor and two spaced-apart pulleys for rotating a tape take-up spool and a tape supply spool in a cassette loaded thereon; a driving plate including a first portion for supporting an erasing magnetic head, a recording and reproducing magnetic head and a pinch roller substantially in one line, and a second portion extended from the middle portion of one side of said first portion, perpendicularly to said line and in a plane including said first portion, said driving plate being supported on said base plate so that said driving plate is slidably and swingably movable; an operating button provided at the middle portion of the other side of said first portion of the driving plate; first means for guiding said driving plate in a sliding movement in parallel with said base plate and in a direction perpendicular to said line; second means for guiding said driving plate in a swinging movement in parallel with said base plate and about an axis at the foremost end of said second portion of the driving plate; two idlers rotatably mounted on a plate swingably supported on said base plate; said driving plate being guided in said sliding movement by said first guide means by a sliding operation of said button in said direction along the extension of said second portion of the driving plate; said magnetic heads and said pinch roller being disposed on said driving plate so that said magnetic heads and said pinch roller are brought into contact with the tape contained in said cassette by said sliding movement of the driving plate, for changing from a stop mode to a recording or a reproducing mode; and said driving plate being guided in said swinging movement by said second guide means by a swinging operation of said button about said axis said idlers and said pulleys being disposed so that one of said idlers is brought into contact with one of said pulleys to rotate the latter by said swinging movement of the driving plate for changing from said stop mode to a tape fast forward mode of a tape rewind mode.
Claim 2
Dependent Claim
369 words
A mode change-over apparatus for a miniature cassette tape recorder, comprising: a base plate for supporting a driving motor and two spaced-apart pulleys for rotating a tape take-up spool and a tape supply spool in a cassette loaded thereon; a driving plate including a first portion for supporting an erasing magnetic head, a recording and reproducing magnetic head and a pinch roller substantially in one line, and a second portion extended from the middle portion of one side of said first portion, perpendicularly to said line and in a plane including said first portion, said driving plate being supported on said base plate so that said driving plate is slidably and swingably movable; an operating button provided at the middle portion of the other side of said first portion of the driving plate; first means for guiding said driving plate in a sliding movement in parallel with said base plate and in a direction perpendicular to said line; second means for guiding said driving plate in a swinging movement in parallel with said base plate and about an axis at the foremost end of said second portion of the driving plate; two idlers rotatably mounted on a plate swingably supported on said base plate; said driving plate being guided in said sliding movement by said first guide means by a sliding operation of said button in said direction along the extension of said second portion of the driving plate; said magnetic heads and said pinch roller being disposed on said driving plate so that said magnetic heads and said pinch roller are brought into contact with the tape contained in said cassette by said sliding movement of the driving plate, for changing from a stop mode to a recording or a reproducing mode; and said driving plate being guided in said swinging movement by said second guide means by a swinging operation of said button about said axis said idlers and said pulleys being disposed so that one of said idlers is brought into contact with one of said pulleys to rotate the latter by said swinging movement of the driving plate for changing from said stop mode to a tape fast forward mode of a tape rewind mode.
Claim 3
Dependent Claim
28 words
The apparatus as defined in claim 1, further comprising means for transmitting the rotational force of said motor to said idlers to rotate the same in opposite directions.
Claim 4
Dependent Claim
99 words
The apparatus as defined in claim 1, further comprising a belt passed around said idlers substantially in ''''S'''' shape, said belt transmitting the rOtational force of said motor to said idlers to rotate the same in opposite directions, said second guiding means means including a pin provided on said swingable plate and pushing means provided on said driving plate, and being engaged with said pin to push it, and said swingable plate being swung by said swinging movement of the driving plate to bring a selected one of said idlers into contact with a selected one of said pulleys.
Claim 5
Dependent Claim
122 words
The apparatus as defined in claim 1, further comprising a pin provided on said driving plate, a rotatable lever having at one end an engaging portion substantially in ''''V'''' shape, being engaged with said pin, and a spring exerting a rotating force on said lever so that said engaging portion is always in abutting contact with said pin, said lever exerting a pushing force on said pin so as to guide the latter at the bottom of said engaging portion and hold said pin in position by said force exerted by the spring, and said driving plate returning to its neutral position by said force exerted through said lever, and said pin upon release of said driving plate from an operating force.
Claim 6
Dependent Claim
198 words
The apparatus as defined in claim 1, wherein said first and said second guide means include a first guiding slot formed at said base plate in said direction along the extension of said second portion of the driving plate, a first pin provided at the foremost end of said second portion and engaged in said first slot, a second guiding slot including a linear portion formed at said base plate along said extension of the second portion and an arcuate slot portion formed at said base plate along the direction of swinging of said driving plate, said linear and said arcuate slot portions being connected with each other, and a second pin provided on said driving plate and engaged in said second slot, said driving plate being guided in said sliding movement by said first pin guided along said first slot, and said second pin guided along said linear portion of the second slot, and said driving plate being further guided in said swinging movement by said first pin which acts as said axis of the swinging movement while being engaged in said first slot, and said second pin guided along said arcuate portion of said second slot.
Claim 7
Dependent Claim
96 words
The apparatus as defined in claim 5, further comprising a rotatable lever having at one end an engaging portion substantially in ''''V'''' shape, being engaged with said second pin, a spring exerting a rotating force on said lever so that said engaging portion is always in abutting contact with said second pin, and a switch having a contact member which is in contact with said lever and is opened and closed by the movement of said lever, the latter being rotated through said second pin according to said sliding and swinging movements of said driving plate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |