Claims
- 1. An information recording-reproducing apparatus comprising:
- first holding means for holding a card-like or sheet-like information recording medium;
- a first head for recording information on said information recording medium or reproducing the information recorded on said information recording medium held by said first holding means;
- first means for reciprocally rectilinearly moving said first holding means relative to said head;
- second holding means for holding a card-like or sheet-like information recording medium; and
- second means for reciprocally moving said second holding means in a direction parallel with and opposite to the direction of movement of said first holding means, said second holding means being operatively associated with the movement of said first holding means.
- 2. An information recording-reproducing apparatus according to claim 1, wherein said first means for rectilinearly moving said first holding means is a rotatable belt to which said second holding means is secured.
- 3. An information recording-reproducing apparatus according to claim 1, wherein the weight of said first holding means is substantially equal to the weight of said second holding means.
- 4. An information recording-reproducing apparatus according to claim 1, further comprising a second head for recording information on said recording medium held by said second holding means or reproducing the information recorded on said recording medium by said second holding means.
- 5. An information recording-reproducing apparatus according to claim 1, wherein each of said first and second holding means is a holding bed.
- 6. An information recording-reproducing apparatus according to claim 1, wherein said first means and said second means are identical to each other.
- 7. An information recording-reproducing apparatus according to claim 4, wherein said moving means is a belt supported by two pulleys.
- 8. An information recording-reproducing apparatus according to claim 7, wherein second holding means is supported by guide means.
- 9. An information recording-reproducing apparatus according to claim 7, wherein said second holding means is supported by a planar support bed.
- 10. An optical information recording-reproducing apparatus comprising:
- holding means for holding a card-like or sheet-like optical information recording medium, said recording medium having a linearly-extending track;
- an optical head for optically recording information on the optical information recording medium or reproducing the information recorded on the optical information recording medium, said optical head including an objective which is controlled so as to be placed at an optimum position with respect to both a focus direction of said objective and at track direction of the track travelled by the recording medium;
- first means for reciprocally rectilinearly moving said holding means relative to said optical head in a track extending direction while said objective of said optical head is controlled so as to be placed at said optimum position, said optical head being stationary with respect to the track extending direction; and
- second means for reciprocally moving a body of a predetermined weight in association with the movement of said holding means, with said second means preventing shock during the reversal of said holding means, said objective being controlled so as to be placed at said optimum position during reversal of said holding means.
- 11. An optical information recording-reproducing apparatus according to claim 10, wherein said first means for rectilinearly moving said holding means is a rotatable belt to which said body of a predetermined weight is secured.
- 12. An optical information recording-reproducing apparatus according to claim 10, wherein the predetermined weight of said body is substantially equal to the sum of the weight of the information recording medium and the weight of said holding means.
- 13. An optical information recording-reproducing apparatus according to claim 10, wherein said holding means is a holding bed for holding the card-like or sheet-like information recording medium, and said second means moves a body of predetermined weight in a direction parallel to and opposite to the direction of movement of said holding bed while keeping an operative association with said holding bed.
- 14. An optical information recording-reproducing apparatus according to claim 13, wherein said first means and said second means are identical to each other.
- 15. An optical information recording-reproducing apparatus according to claim 14, wherein said moving means is a belt supported by two pulleys.
- 16. An optical information recording-reproducing apparatus according to claim 15, wherein said body of a predetermined weight is supported by guide means.
- 17. An optical information recording-reproducing apparatus according to claim 15, wherein said body of a predetermined weight is supported by a planar support bed.
Priority Claims (2)
Number |
Date |
Country |
Kind |
60-103875 |
May 1985 |
JPX |
|
60-231390 |
Oct 1985 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 861,873 filed May 12, 1986, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3633186 |
Lynott et al. |
Jan 1972 |
|
4121249 |
Lemelson |
Oct 1978 |
|
4514837 |
Van Rosmalen |
Apr 1985 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
861873 |
May 1986 |
|