US3867720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge locking device for tape players
Assignee: Individual
•
Filing: 1973-05-21
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Granted: 1975-02-18
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Expires: 1993-05-21
Abstract
Abstract The invention relates to a device of attaching cartridge to the tape player, and is to hold fitting means to be pressed to an engaging concave of the side of the attached cartridge at an appropriate retreating position, and further is to release said fitting means from its retreating condition to effect a strong pressure to the cartridge when it is completely inserted thereinto, so that a sound attaching-detaching operation is provided as well as an exact attaching condition of the cartridge is formed at a reproduction.
Inventors
- 👤 Yoshinobu Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:40
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
290 words
In a player, for magnetic tape cartridges, having a deck and means on said deck to define a tunnel to receive a cartridge slid longitudinally therein, the improvement which comprises in combination a first arm pivoted at one of its ends to said deck for lateral swinging movement, recess-engaging means mounted on the other end of said first arm and positioned for movement into a recess in a side of a cartridge inserted fully into said tunnel, spring-loading means secured to said deck and to said first arm to urge the first arm in the direction to move said recess-engaging means toward the cartridge, a second arm pivoted by one of its ends on said first arm, a shoulder on said second arm, a stop on said deck positioned to be contactable by said shoulder, spring-loading means secured to said first arm and to said second arm to urge said second arm into a position in which said shoulder is engaged by said stop, and abutment means on the other end of said second arm positioned to be contacted by the leading end of a cartridge inserted into and pushed towards fully inserted position in said tunnel, whereby during insertion of a cartridge into said tunnel said recess-engaging means is in a retracted condition and as the cartridge approaches a fully inserted position with its recess registering with the recessengaging means, its leading end contacts said abutment means and shifts said second arm against its spring-loading means such that said shoulder is moved out of engagement with said stop means, to cause the first arm to be rotated about its pivot by its spring loading means to Move the recess-engaging means into the recess in the side of the cartridge.
Claim 2
Dependent Claim
290 words
In a player, for magnetic tape cartridges, having a deck and means on said deck to define a tunnel to receive a cartridge slid longitudinally therein, the improvement which comprises in combination a first arm pivoted at one of its ends to said deck for lateral swinging movement, recess-engaging means mounted on the other end of said first arm and positioned for movement into a recess in a side of a cartridge inserted fully into said tunnel, spring-loading means secured to said deck and to said first arm to urge the first arm in the direction to move said recess-engaging means toward the cartridge, a second arm pivoted by one of its ends on said first arm, a shoulder on said second arm, a stop on said deck positioned to be contactable by said shoulder, spring-loading means secured to said first arm and to said second arm to urge said second arm into a position in which said shoulder is engaged by said stop, and abutment means on the other end of said second arm positioned to be contacted by the leading end of a cartridge inserted into and pushed towards fully inserted position in said tunnel, whereby during insertion of a cartridge into said tunnel said recess-engaging means is in a retracted condition and as the cartridge approaches a fully inserted position with its recess registering with the recessengaging means, its leading end contacts said abutment means and shifts said second arm against its spring-loading means such that said shoulder is moved out of engagement with said stop means, to cause the first arm to be rotated about its pivot by its spring loading means to Move the recess-engaging means into the recess in the side of the cartridge.
Claim 3
Dependent Claim
46 words
The improvement of claim 1 wherein said recess-engaging means is a roller, and wherein the retracted position of the first arm is such that said roller is positioned adjacent to said tunnel-defining means for contacting and guiding one side of a cartridge inserted in said tunnel.
Claim 4
Dependent Claim
29 words
The improvement of claim 2, wherein said tunnel-defining means includes other roller means, opposed to said recess-engaging roller, for contacting and guiding the other side of said inserted cartridge.
References Cited (Backward Citations)
US3492005A
Cited
US3599985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |