US3661395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape fast feed control apparatus
Assignee: Individual
•
Filing: 1970-05-05
•
Granted: 1972-05-09
•
Expires: 1990-05-05
Abstract
Abstract An endless tape cartridge is insertable on the deck of a recording and reproducing device provided with a normal drive speed and timed fast forward speed. The device drives the tape by a capstan driven by a motor rotatable at either a fast or low speed and having large and small driving pulleys either of which is connected by a drive belt to the flywheel of the capstan. To advance the tape rapidly, the fast forward drive is actuated by control curcuitry including a timer operated switch which actuates a solenoid to in turn pivot a belt shifting lever to move the belt from the small to the large diameter pulley and to simultaneously electrically operate the motor at a fast speed. An associated stopper lever latches the belt shifting lever in its fast position while suitable linkage pivots the device''s magnetic head clear of the tape. The fast forward operation continues until the timer operated switch actuates curcuitry controlling a release lever which is connected through suitable linkage to shift the stopper lever to allow the belt shifting lever to return the belt and motor speed back to the normal, lower speed.
Inventors
- 👤 Itsuki Ban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:18
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/44
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
477 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player, comprising a player deck, a rotatary capstan for driving the tape in the tape cartridge held in the play position, at least one magnetic head for transducing the tape, a retention member on the deck for urging a pinch roller, coactable with the capstan driving the tape, to a position where the pinch roller abuts against the capstan, comprising: a motor as a drive source for rotating said capstan, said motor being arranged to selectively rotate its output shaft at either fast or low speed; a power circuit for the motor, said power circuit having a changing switch for selectively cHanging rotation of the motor from fast to low speed and vice versa; large and small drive pulleys adjacent to each other connected to the output shaft of the motor; a belt for imparting rotation of the small and large drive pulleys to said capstan; shift means for moving the belt to allow the latter to selectively be shifted to the small drive pulley or the large drive pulley, said shift means including an actuating member movably provided and engageable with the belt, a spring for urging said actuating member to a first position where the belt is trained to the small drive pulley, a solenoid for moving said actuating member against the bias of said spring to a second position where the belt is trained to the large drive pulley, and a control circuit for energizing said solenoid in pulse fashion, in response to movement of said actuating member from said first position to said second position, change-over of said changing switch being made to rotate the motor at fast speed while the belt is trained to the large drive pulley to rotate said capstan at fast speed thereby effecting the fast feed of the tape; a stopper lever for retaining the actuating member which is moved to the second position by the solenoid in the second position; moving means for moving said retention member in a condition that said pinch roller is away from said capstan and the drive of said tape is interrupted, said moving means having a moving lever movably provided on said deck and coupled to said retention member, and a lever driving device for reciprocally moving said moving lever, in response to reciprocal movement of said moving lever the drive of the tape being temporarily interrupted while the stopper lever is moved by said lever to a position where the stopper lever is disengaged from the actuating lever when said moving lever is moved whereby the actuating lever is returned to the first position to change rotation of said capstan to low speed and the drive of said tape is converted from fast speed to normal playing speed; control means for controlling operation of said driving device.
Claim 2
Dependent Claim
477 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player, comprising a player deck, a rotatary capstan for driving the tape in the tape cartridge held in the play position, at least one magnetic head for transducing the tape, a retention member on the deck for urging a pinch roller, coactable with the capstan driving the tape, to a position where the pinch roller abuts against the capstan, comprising: a motor as a drive source for rotating said capstan, said motor being arranged to selectively rotate its output shaft at either fast or low speed; a power circuit for the motor, said power circuit having a changing switch for selectively cHanging rotation of the motor from fast to low speed and vice versa; large and small drive pulleys adjacent to each other connected to the output shaft of the motor; a belt for imparting rotation of the small and large drive pulleys to said capstan; shift means for moving the belt to allow the latter to selectively be shifted to the small drive pulley or the large drive pulley, said shift means including an actuating member movably provided and engageable with the belt, a spring for urging said actuating member to a first position where the belt is trained to the small drive pulley, a solenoid for moving said actuating member against the bias of said spring to a second position where the belt is trained to the large drive pulley, and a control circuit for energizing said solenoid in pulse fashion, in response to movement of said actuating member from said first position to said second position, change-over of said changing switch being made to rotate the motor at fast speed while the belt is trained to the large drive pulley to rotate said capstan at fast speed thereby effecting the fast feed of the tape; a stopper lever for retaining the actuating member which is moved to the second position by the solenoid in the second position; moving means for moving said retention member in a condition that said pinch roller is away from said capstan and the drive of said tape is interrupted, said moving means having a moving lever movably provided on said deck and coupled to said retention member, and a lever driving device for reciprocally moving said moving lever, in response to reciprocal movement of said moving lever the drive of the tape being temporarily interrupted while the stopper lever is moved by said lever to a position where the stopper lever is disengaged from the actuating lever when said moving lever is moved whereby the actuating lever is returned to the first position to change rotation of said capstan to low speed and the drive of said tape is converted from fast speed to normal playing speed; control means for controlling operation of said driving device.
Claim 3
Dependent Claim
103 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player in accordance with claim 1, wherein said magnetic head is mounted to a displaceable support member swingably provided on a pin mounted to said deck, the support member being normally biased by a spring member to a transduce position where said magnetic head transduces the tape, when said actuating member is moved from said first position to said second position the support member being moved against the bias of the spring member from the transduce position to the non-transduce position where said magnetic head is away from said tape.
Claim 4
Dependent Claim
161 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player in accordance with claim 1, wherein said lever driving device in said lever moving means including as eccentric frictional wheel rotatably provided on said moving lever, a spring for biasing the moving lever in the direction where the wheel abuts against said capstan, a hook lever retaining the moving lever in the position where the wheel does not abut against said capstan against the bias of the spring, a solenoid for moving the hook lever to establish disengagement from the moving lever, and said control means including a control circuit for energizing the solenoid in pulse fashion, the wheel abutting against said capstan and being eccentrically rotated in response to energization of the solenoid thereby reciprocally moving the moving lever, the wheel being rotated through one revolution swingable movement of the moving lever being arrested by the hook lever while rotation of the wheel is automatically terminated.
Claim 5
Dependent Claim
68 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player in accordance with claim 3, wherein said retention member is mounted to a leaf spring one end of which is fixed to said deck, said retention member being a roller which Is insertable, under the bias of the leaf spring, into a notch formed on side wall of said cartridge in said play position.
Claim 6
Dependent Claim
159 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player in accordance with claim 3, wherein said control circuit in said shift means and said control circuit in said lever driving device have a switch operable by a lever mounted to a shaft which is automatically rotated by a clockwork in one direction, the lever being manually rotated in the direction reversed to that in which the shaft in the original position for operating the switch, in response to this operation of the switch being discontinued and the solenoid of the shift means being operated in pulse fashion to fast feed the tape, the shaft being returned to the original position by the clockwork, in response to operation of the switch made by the lever the solenoid of the lever driving device being operated in pulse fashion to automatically terminate the fast feed of the tape thereby changing to the normal speed of the tape.
Claim 7
Dependent Claim
113 words
A magnetic tape fast feed control apparatus for an endless magnetic tape cartridge player in accordance with claim 5, wherein said shaft is provided with a pointer, a dial plate is provided in opposition to said pointer and having a plurality of digits designating the quantity of the tape to be fast fed, the shaft being manually controlled to determine the rotational volume thereof depending upon the dial plate which the pointer points to thereby determine the quantity of the tape to be fast fed, the tape being fast driven by the determined quantity, said switch being operated by said lever on the shaft thereby automatically terminating the fast feed of the tape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |