JPS57133544A - Back tension mechanism of reverse reproduction - Google Patents

Back tension mechanism of reverse reproduction

Info

Publication number
JPS57133544A
JPS57133544A JP56010796A JP1079681A JPS57133544A JP S57133544 A JPS57133544 A JP S57133544A JP 56010796 A JP56010796 A JP 56010796A JP 1079681 A JP1079681 A JP 1079681A JP S57133544 A JPS57133544 A JP S57133544A
Authority
JP
Japan
Prior art keywords
gear
reel
lever
back tension
drive disk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56010796A
Other languages
Japanese (ja)
Inventor
Fumio Itai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56010796A priority Critical patent/JPS57133544A/en
Publication of JPS57133544A publication Critical patent/JPS57133544A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension

Abstract

PURPOSE:To simplify the back tension mechanism, by blocking a reel gear of a tape-up reel drive disk in the reverse reproduction mode and applying the back tension to a tape by utilizing the clutch torque for a take-up torque. CONSTITUTION:In the reverse reproduction mode, a brake line 16 moves toward an arrow (a) and a brake lever 14 turns toward a take-up reel drive disk 2 centering on a shaft 15. Then the cylinder part of a gear lock lever 22 is press- fixed to a reel drum 7. On the other hand, an arm 4 turns round a shaft 5 and an idle gear 3 engages a reel gear 25 of a supply reel drive disk 1. The lever 22 turns toward the center of the disk 2 round a shaft 18 by the friction force of a felt 24, and accordingly a catch 23 engages a reel gear 8 to apply the back tension to the tape. In the recording/reproducing mode, the cylinder part of the lever 22 is press-fixed to the drum 7. However, the lever 22 moves to release the locking of the gear 8 since the turning direction of the reel drive disk is adverse to the reproduction mode of the disk 2.
JP56010796A 1981-01-29 1981-01-29 Back tension mechanism of reverse reproduction Pending JPS57133544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010796A JPS57133544A (en) 1981-01-29 1981-01-29 Back tension mechanism of reverse reproduction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010796A JPS57133544A (en) 1981-01-29 1981-01-29 Back tension mechanism of reverse reproduction

Publications (1)

Publication Number Publication Date
JPS57133544A true JPS57133544A (en) 1982-08-18

Family

ID=11760301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010796A Pending JPS57133544A (en) 1981-01-29 1981-01-29 Back tension mechanism of reverse reproduction

Country Status (1)

Country Link
JP (1) JPS57133544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486351A (en) * 1987-09-29 1989-03-31 Sony Corp Braking device for reel base of magnetic recording and reproducing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56113534A (en) * 1980-01-14 1981-09-07 Gen Packer Compression packer
JPS5824339A (en) * 1981-08-06 1983-02-14 Taiyo Kagaku Kk Novel dehydrating agent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56113534A (en) * 1980-01-14 1981-09-07 Gen Packer Compression packer
JPS5824339A (en) * 1981-08-06 1983-02-14 Taiyo Kagaku Kk Novel dehydrating agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486351A (en) * 1987-09-29 1989-03-31 Sony Corp Braking device for reel base of magnetic recording and reproducing device

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