Patent US4377829A successfully refreshed from Google Patents.
US4377829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Player for magnetic tape cartridge recordings
Assignee: Pioneer Corp
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Filing: 1980-12-29
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Granted: 1983-03-22
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Expires: 2000-12-29
Abstract
Abstract A player for magnetic tape recordings is provided, which comprises a cartridge holder adapted to receive therein a cartridge, guide grooves for guiding the holder, an ejecting member adapted to depress the holder and an ejecting mechanism for releasing the cartridge. The ejecting member is in the form of a lever. The ejecting mechanism serves to separate the lever from the holder with the advancement of the holder to retain the lever at an upper position separately from the cartridge holder, and to release the lever simultaneously with the starting of ejecting operation. Thus, the cartridge holder is pushed downward and ejected for removal. The player also includes two grooves intersecting each other at an angle of 90° to 180° on a line extending from the lever. These grooves serve to guide therealong both end of the ejecting lever to cause an arcuate movement of the lever.
Inventors
- 👤 Teturo Kamimura
- 👤 Masahiro Komatsubara
- 👤 Shizuo Ando
- 👤 Takuzi Inanaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:21
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/1883; G11B15/26; G11B15/28; G11B15/29; G11B15/675; G11B15/67581; G11B15/67592
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
189 words
In a player for magnetic tape cartridge recording and playback operation comprising: a chassis having a main surface; a cartridge holder mounted for motion within said chassis and adapted to receive a tape cartridge from without said chassis at an initial oblique position with respect to the main surface; and guide means associated with said cartridge holder and including at least one set of guide grooves, each including a first groove portion parallel to the main surfaces and a second groove portion extending from the first groove portion substantially perpendicularly thereto, said guide means allowing said cartridge holder to be translated into said chassis to an intermediate oblique position along the first groove portion and then turned from the intermediate oblique position to a position parallel to the main surface; the improvement comprising: ejecting means for urging said cartridge holder from the parallel position back to the intermediate oblique position along the second groove portion and further to the initial position along the first groove portion; and control means for selectively retaining said ejecting means inoperative in response to the translational movement of said cartridge holder into the chassis.
Claim 2
Dependent Claim
189 words
In a player for magnetic tape cartridge recording and playback operation comprising: a chassis having a main surface; a cartridge holder mounted for motion within said chassis and adapted to receive a tape cartridge from without said chassis at an initial oblique position with respect to the main surface; and guide means associated with said cartridge holder and including at least one set of guide grooves, each including a first groove portion parallel to the main surfaces and a second groove portion extending from the first groove portion substantially perpendicularly thereto, said guide means allowing said cartridge holder to be translated into said chassis to an intermediate oblique position along the first groove portion and then turned from the intermediate oblique position to a position parallel to the main surface; the improvement comprising: ejecting means for urging said cartridge holder from the parallel position back to the intermediate oblique position along the second groove portion and further to the initial position along the first groove portion; and control means for selectively retaining said ejecting means inoperative in response to the translational movement of said cartridge holder into the chassis.
Claim 3
Dependent Claim
57 words
The player according to claim 1 wherein said ejecting means comprises: first ejecting means for urging said cartridge holder from the parallel position back to the intermediate oblique position along the second groove position; and second ejecting means for urging said cartridge holder from the intermediate oblique position to the initial position along the first groove portion.
Claim 4
Dependent Claim
38 words
The player according to claim 2 wherein said control means comprises: first control means for selectively retaining said first ejecting means inoperative; and second control means comprising said second groove portion for retaining said second ejecting means inoperative.
Claim 5
Dependent Claim
59 words
The player according to claim 2 wherein said first ejecting means includes an ejecting lever having one end engageable with said cartridge holder, and a spring extended between said chassis and said ejecting lever to bias said ejecting lever in engagement with said cartridge holder to urge said cartridge holder from the parallel position back to the intermediate position.
Claim 6
Dependent Claim
56 words
The player according to claim 2 wherein said second ejecting means includes a sliding plate mounted in said chassis for movement parallel to the main surface and engaged with said cartridge holder, and a spring extended between said chassis and said sliding plate to urge said cartridge holder from the intermediate position to the initial position.
Claim 7
Dependent Claim
142 words
The player according to claim 1 wherein said ejecting means comprises: first ejecting means including an ejecting lever having one end engageable with said cartridge holder, and a spring extended between said chassis and said ejecting lever to bias said ejecting lever in engagement with said cartridge holder to urge said cartridge holder from the parallel position back to the intermediate position, and second ejecting means including a sliding plate mounted in said chassis for movement parallel to the main surface and engaged with said cartridge holder, and a spring extended between said chassis and said sliding plate to urge said cartridge holder from the intermediate position to the initial position; said control means comprises: first control means for selectively retaining said first ejecting means inoperative; and second control means comprising said second groove portion for retaining said second ejecting means inoperative.
Claim 8
Dependent Claim
39 words
The player according to claim 6 wherein said first control means comprises a stopper plate pivotally mounted on the chassis and biased in a predetermined direction, and means for bringing said ejecting lever into engagement with said stopper plate.
Claim 9
Dependent Claim
33 words
The player according to claim 7 wherein said last-mentioned means comprises said sliding plate, and a pawl pivotally connected to said sliding plate and engageable with the other end of said ejecting lever.
Claim 10
Dependent Claim
70 words
The player according to claim 4 or 6 wherein said chassis includes a pair of guide channels on a side wall thereof, one guide channel being at an angle of more than 90° and less than 180° with respect to the other guide channel, and said ejecting lever has at opposite ends guide rollers which are received in said guide channels to allow substantially arcuate movement of said ejecting lever.
Claim 11
Dependent Claim
28 words
The player according to claim 7 wherein said first control means further comprises a plunger which is electrically actuated to disengage said stopper plate from said ejecting lever.
Claim 12
Dependent Claim
32 words
The player according to claim 8 wherein said sliding plate has two pins which are received in guide slots formed in the side wall of said chassis parallel to the main surface.
Claim 13
Dependent Claim
41 words
The player according to claim 8 wherein said pawl is spring biased such that the pawl is disengaged from the other end of said ejecting lever when said sliding plate has been moved with the translational movement of said cartridge holder.
Claim 14
Dependent Claim
35 words
The player according to claim 6 wherein a member on the side wall of said cartridge holder is received in a slot in said sliding plate to engage said cartridge holder with said sliding plate.
Claim 15
Dependent Claim
55 words
The player according to claim 13 wherein said guide means includes two sets of guide grooves formed in opposite side walls of said chassis and two sets of guide members affixed to opposite side walls of said cartridge holder and received in the corresponding guide grooves, and said member is one of said guide members.
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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) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |