Claims
- 1. A pivoting device for a shutter pivotally arranged at a cassette insertion opening of a magnetic tape cassette apparatus, which cassette apparatus includes (i) a loading mechanism comprising a slide, translatable in an insertion and an ejection direction, between a slide takeover position and a slide play position, which loading mechanism (a) moves a tape cassette into and out of the apparatus through the cassette insertion opening and (b) moves the tape cassette between a takeover position and a play position corresponding to the takeover and play positions of the slide, respectively, and (ii) an electromotive drive for moving said slide, said drive being loaded to its greatest load while the loading mechanism moves the tape cassette from the play to the takeover position, wherein said pivoting device comprises:
- a coupling lever;
- shutter coupling means for disengagingly coupling said coupling lever to the shutter, said coupling lever being pivotable to move the shutter between an open and a closed position;
- an actuating rod engageable with said coupling lever, said slide being coupled to the actuating rod for moving the actuating rod in the insertion and ejection direction during respective movement of said slide in each of said insertion and ejection directions,
- said actuating rod being arranged relative to said coupling lever such that said actuating rod (i) is not coupled to said coupling lever during movement of said slide in the ejection direction from said slide play position to said slide takeover position by said electromotive drive, during which said electromotive drive is loaded to its greatest extent, and (ii) is coupled to said coupling lever when said slide is moved in the ejection direction from the slide takeover position.
- 2. A pivoting device according to claim 1, further comprising an opening rod for disengagingly coupling the shutter to said coupling lever, said opening rod being decoupled from said coupling lever during movement of a cassette through said insertion opening to said cassette play position during movement of said slide from the slide takeover position to the slide play position.
- 3. A pivoting device according to claim 1, further comprising an opening rod for connection to the shutter and actuatable by said coupling lever to open the shutter.
- 4. A pivoting device as claimed in claim 3, characterized in that the actuating rod includes a coupling pin for coupling the actuating rod to the coupling lever.
- 5. A pivoting device as claimed claim 4, characterized in that the coupling lever has an actuating lever arm, on which the actuating rod acts, and an opening lever arm, which cooperates with the opening rod, the actuating lever arm being shorter than the opening lever arm.
- 6. A pivoting device as claimed in claim 3, characterized in that the coupling lever has an actuating lever arm, on which the actuating rod acts, and an opening lever arm, which cooperates with the opening rod, the actuating lever arm being shorter than the opening lever arm.
- 7. A pivoting device as claimed in claim 1, characterized in that the coupling lever has an actuating lever arm, on which the actuating rod acts, and an opening lever arm, which cooperates with said shutter coupling means, the actuating lever arm being shorter than the opening lever arm.
- 8. A magnetic tape cassette apparatus, comprising:
- an insertion opening for receiving a tape cassette;
- a pivotable shutter pivotable between an open and a closed position;
- a loading mechanism for moving the tape cassette between a cassette takeover position and a cassette play position, said loading mechanism including a slide for transporting the tape cassette between the cassette takeover position and the cassette play position, said slide being translatable in an insertion and an opposite, ejection direction between a slide takeover position and a slide play position corresponding, respectively, to the cassette takeover and cassette play positions;
- an electromotive drive for moving said slide, said drive being subject to its greatest load while said loading mechanism moves said slide from the slide play position to the slide takeover position;
- a coupling lever;
- shutter coupling means for disengagingly coupling said coupling lever to said shutter, said coupling lever being pivotable to move said shutter between the open and the closed positions;
- an actuating rod engageable with said coupling lever, said slide being coupled to said actuating rod for moving said actuating rod in the insertion direction and the ejection direction during respective movement of said slide in each of said insertion and ejection directions,
- said actuating rod being arranged relative to said coupling lever such that said actuating rod (i) is not coupled to said coupling lever during movement of said slide in the ejection direction from said slide play position to said slide takeover position by said electromotive drive, during which said electromotive drive is loaded to its greatest extent, and (ii) is coupled to said coupling lever when said slide is moved in the ejection direction from the slide takeover position.
- 9. A magnetic tape cassette apparatus according to claim 8, further comprising an opening rod disengagingly coupling said shutter to said coupling lever, said opening rod being decoupled from said coupling lever during movement of a cassette through said insertion opening to said cassette play position during movement of said slide from the slide takeover position to the slide play position.
- 10. A magnetic tape cassette apparatus according to claim 8, wherein said shutter coupling means includes an opening rod connected to said shutter and actuatable by said coupling lever to open said shutter.
- 11. A magnetic tape cassette apparatus as claimed in claim 10, characterized in that said actuating rod includes a coupling pin for coupling said actuating rod to said coupling lever.
- 12. A magnetic tape cassette apparatus claimed in claim 11, characterized in that said coupling lever has an actuating lever arm, on which said actuating rod acts, and an opening lever arm, which cooperates with said opening rod, said actuating lever arm being shorter than said opening lever arm.
- 13. A magnetic tape cassette apparatus claimed in claim 10, characterized in that said coupling lever has an actuating lever arm, on which said actuating rod acts, and an opening lever arm, which cooperates with said opening rod, said actuating lever arm being shorter than said opening lever arm.
- 14. A magnetic tape cassette apparatus claimed in claim 8, characterized in that said coupling lever has an actuating lever arm, on which said actuating rod acts, and an opening lever arm, which cooperates with said shutter coupling means, said actuating lever arm being shorter than said opening lever arm.
Priority Claims (1)
Number |
Date |
Country |
Kind |
43 28 443.4 |
Aug 1993 |
DEX |
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BACKGROUND OF THE INVENTION
This is a continuation of application Ser. No. 08/293,984, filed on Aug. 22, 1994, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0156443 |
Oct 1985 |
EPX |
0374899 |
Jun 1990 |
EPX |
4009623 |
Oct 1991 |
DEX |
Continuations (1)
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Number |
Date |
Country |
Parent |
293984 |
Aug 1994 |
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