Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system
Patent
1993-02-23
1995-03-21
Stodola, Daniel P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Cartridge system
2423341, 2423551, 360 963, G11B 1518
Patent
active
053988809
DESCRIPTION:
BRIEF SUMMARY
THE BACKGROUND OF THE INVENTION
The present invention relates to a device for selecting tape-reel control mode adapted to a tape recording and/or playing device such as a video tape recorder, a video tape player, DAT and camera recorder for home or business use as well as combination recorder with a television, and the other visual or audio device having a tape recorder and/or player.
The prior recorder and/or player with tape-winding system had generally included a tape deck having a pair of tape-reel setting discs to which a pair of tape-reels journalled in a tape-cassette are removably engaged as the tape-cassette is set on the deck, a torque transmission means through which either one of the setting discs is alternately rotated in a forward or backward direction by means of a drive motor, and means for selecting a prescribed tape-reel control mode from various control modes such as a recording mode, a playing mode, fast-running mode, rewinding mode, etc., thereby to drive the setting disc under a speed depending on the selected control mode mentioned above.
In order to maintain a tape in a manner to be partially stretched between the tape-reels, the tape-winding system mentioned above includes means for braking the setting disc just when the setting disc runs in a reverse direction under the regulation depending on the prescribed control mode, together with means for preventing slack in the stretched portion of the tape.
However, the prior recorder and/or player should be provided with a separate motor or an electromagnetic solenoid device together with means for biasing braking members disposed at suitable positions associated with the setting disc and torque transmission mean. It is undesirable to cause in increase in the number of parts or, weight and cost of the device, as well as further complicating its construction.
OBJECTS OF THE INVENTION
An object of this invention is to provide a device for selecting a tape-reel control mode adapted for use in a tape recorder and/or player wherein means for biasing the braking members can be regulated by means of a drive motor, which is adapted to regulate a mode selecting cam member and a shift member, the shift member being adapted to set a torque transmission device and means for controlling the braking members and other associated members according to the prescribed control mode, without an additional motor or solenoid device.
A second object of this invention is to provide a device for selecting a tape-reel control mode adapted for use in a tape recorder and/or player wherein there are provided means for locking the shift member in a fast-running mode position, and means for relieving the shift member from the locking condition in such a manner that the mode selecting cam is regulated by the drive motor in the same direction as that in the previous mode, just after the control mode is changed from the previous mode to the next mode.
A third object of this invention is to provide a device for selecting tape-reel control mode adapted for use in a tape recorder and/or player wherein there are provided means for locking the shift member in a fast-running mode position, and means for relieving the shift member from the locking condition at such timing so that the mode selecting cam is yet not being regulated by the drive motor just when the control mode is exchanged from the previous mode, thereby to actuating the braking members ahead of time at which the drive motor starts under the next mode without it being loaded by the mode selecting cam.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a device for selecting a tape-reel control mode adapted to a tape recorder and/or player in which are included a tape deck having a pair of tape-reel setting discs to which a pair of tape-reels journalled in a tape-cassette are removably engaged as the tape-cassette is set on the deck, a torque transmission device for alternately supplying a torque power from a drive motor to either one of the tape-reel setting discs, and means for b
REFERENCES:
patent: 4336560 (1982-06-01), Matsumoto
patent: 4747564 (1988-05-01), Tsubota
patent: 4807061 (1989-02-01), Yoon
patent: 4899951 (1990-02-01), Okada et al.
Morinaka Kouji
Sawai Kunio
Funai Electric Co. Ltd.
Nguyen John Q.
Stodola Daniel P.
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