FR2408895A1 - Sound film unit with pliable pressure roller - contacting tone shaft on either side of film strip - Google Patents

Sound film unit with pliable pressure roller - contacting tone shaft on either side of film strip

Info

Publication number
FR2408895A1
FR2408895A1 FR7828798A FR7828798A FR2408895A1 FR 2408895 A1 FR2408895 A1 FR 2408895A1 FR 7828798 A FR7828798 A FR 7828798A FR 7828798 A FR7828798 A FR 7828798A FR 2408895 A1 FR2408895 A1 FR 2408895A1
Authority
FR
France
Prior art keywords
pressure roller
film strip
side
contacting
tone shaft
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.)
Withdrawn
Application number
FR7828798A
Other languages
French (fr)
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority to DE19772750726 priority Critical patent/DE2750726A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2408895A1 publication Critical patent/FR2408895A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/18Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls

Abstract

The unit has a smooth tone shaft (2) and a pressure roller (3) positioned on opposite sides of the film strip (5). The tone shaft (2) and the pressure roller (3) are each wider than the film strip (5) and contact one another directly at either side of the latter. The contact between the tone shaft (2) and the pressure roller (3) defines a cylindrical surface, with the pliance less adjacent the film than where the film strip (5) itself is contacted. Pref. the pressure roller (3) has a series of cylindrical rings (12, 13, 14) of similar dia. made of materials which have different pliance characteristics.
FR7828798A 1977-11-12 1978-10-09 Sound film unit with pliable pressure roller - contacting tone shaft on either side of film strip Withdrawn FR2408895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772750726 DE2750726A1 (en) 1977-11-12 1977-11-12 Tonfilmgeraet with a film-calming device for audio portion

Publications (1)

Publication Number Publication Date
FR2408895A1 true FR2408895A1 (en) 1979-06-08

Family

ID=6023629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828798A Withdrawn FR2408895A1 (en) 1977-11-12 1978-10-09 Sound film unit with pliable pressure roller - contacting tone shaft on either side of film strip

Country Status (4)

Country Link
JP (2) JPS5512296U (en)
AT (1) AT358929B (en)
DE (1) DE2750726A1 (en)
FR (1) FR2408895A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943852A (en) * 1955-07-01 1960-07-05 Hughes Aircraft Co Rapid acceleration driving mechanisms
FR1282528A (en) * 1958-12-30 1962-01-27 An improved device for controlling the movement of a tape, in particular, magnetic
US3077293A (en) * 1960-05-16 1963-02-12 Midwestern Instr Inc Pressure roller assembly for recording media
US3253758A (en) * 1963-07-09 1966-05-31 Sony Corp Tape driving device
US3310214A (en) * 1964-03-09 1967-03-21 Burroughs Corp Tape drive mechanism
US3547372A (en) * 1968-09-06 1970-12-15 Arvin Ind Inc Capstan for tape transport
US4033495A (en) * 1976-02-06 1977-07-05 Stephen A. Platt Tape drive apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943852A (en) * 1955-07-01 1960-07-05 Hughes Aircraft Co Rapid acceleration driving mechanisms
FR1282528A (en) * 1958-12-30 1962-01-27 An improved device for controlling the movement of a tape, in particular, magnetic
US3077293A (en) * 1960-05-16 1963-02-12 Midwestern Instr Inc Pressure roller assembly for recording media
US3253758A (en) * 1963-07-09 1966-05-31 Sony Corp Tape driving device
US3310214A (en) * 1964-03-09 1967-03-21 Burroughs Corp Tape drive mechanism
US3547372A (en) * 1968-09-06 1970-12-15 Arvin Ind Inc Capstan for tape transport
US4033495A (en) * 1976-02-06 1977-07-05 Stephen A. Platt Tape drive apparatus

Also Published As

Publication number Publication date
DE2750726A1 (en) 1979-05-17
AT358929B (en) 1980-10-10
JPS5512296U (en) 1980-01-25
ATA708278A (en) 1980-02-15
JPS55122966U (en) 1980-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse