US3386294A - Stepping gear for the track selector in a multi-track tape recorder - Google Patents

Stepping gear for the track selector in a multi-track tape recorder Download PDF

Info

Publication number
US3386294A
US3386294A US543584A US54358466A US3386294A US 3386294 A US3386294 A US 3386294A US 543584 A US543584 A US 543584A US 54358466 A US54358466 A US 54358466A US 3386294 A US3386294 A US 3386294A
Authority
US
United States
Prior art keywords
track
friction wheel
lever
selector
tape recorder
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.)
Expired - Lifetime
Application number
US543584A
Other languages
English (en)
Inventor
Waldenburger Hermann
Schlegel Peter
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3386294A publication Critical patent/US3386294A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • 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
    • 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
    • G11B15/22—Stopping means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5504—Track change, selection or acquisition by displacement of the head across tape tracks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18288—Cam and lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams

Definitions

  • An eccentric friction wheel which is pivotally mounted to a swivel lever and with the aid of a spring is pressed against a tape windup reel.
  • the body of the wheel comprises a spiral shaped groove, the beginning and end of which is joined by an S-shaped cam portion, and a guide pin lever which is pivotally mounted to the swivel lever has a guide pin which engages the groove in the friction wheel.
  • the present invention relates to a stepping gear for the track selector in a mult'i-tra'ck tape recorder, which steps the track selector to the next successive track after the playback of one track.
  • the track selector of a multi-track tape recorder is equipped with a positioning wheel comprising as many tooth spaces as tracks are provided on the tape.
  • a positioning wheel comprising as many tooth spaces as tracks are provided on the tape.
  • a lever mechanism which is actuated by a special electromagnet, or by an electromagnet in the apparatus which also serves other purposes.
  • the present invention provides an arrangement for avoiding these disadvantages, and proceeds from the idea of using one of the motors already in the apparatus, for actuating the track selector, and which already possesses sufficient power reserve.
  • the present invent-ion is characterised by the fact that an eccentric friction wheel is mounted on a two-arm swing-type lever which, by the action of a spring, is pressed against the rim of a tape windup drum, that the body of the friction wheel comprises a spiral shaped groove which, at the end, and via an S-shaped transition, is led back again to the beginning, and that a second lever, is pivoted and movable in relation to the centre axis of the friction wheel, so that it is pressed with the aid of a spring towards the centre of the axis, and engages the groove with the aid of a stud.
  • the friction wheel at its point lying closest to the axis or shaft is provided with a brake lining serving as the rundown brake for the tape reel.
  • FIGS. 1 to 3 In which:
  • FIG. 1 shows the arrangement during the forward movement of the tape
  • FIG. 2 shows the actuation of the stepping mechanism at the beginning of the fast rewind
  • FIG. 3 shows the condition at the beginning of a new forward movement of the tape reel.
  • a friction wheel S eccentrically mounted to the lever 2, is pressed with the aid of a tension spring 4 against the inside edge of a tape reel 1.
  • the two-arm lever 2 is pivoted on a pin 3 which is mounted to the chassis.
  • the body of the friction wheel 5 comprises a spiral shaped groove 6, the beginning and the end of which are connected by an S-shaped cam portion 7.
  • In the cam portion 6/7 rides a pin 8 which is mounted to a lever 9 seated on a stud 15 which, staggered in relation to the connection line between the pin 3 and t e centre of the axis 14 of the friction wheel 5, is mounted near the pin 3-.
  • a spring 10 causes lever 9 to be pressed towards the axis 14 of the friction wheel 5.
  • the end 12 either directly or with the aid of an intermediate hinge, engages one tooth space of the track selector (not shown) for advancing it by one step. This process is per-formed continuously during one rotation of the friction wheel 5, and without causing any noise. After the friction Wheel 5 has performed one rotation, the pin 8 will enter the bend of the S-curve lying closest to the circumference of the friction wheel 5, blocking it.
  • the brake-lining 11 is applied to the drum or reel (FIGURE 3 solid line arrow).
  • An arrangement for advancing the track selector of a multi-track tape recorder comprising:
  • a first spring attached to said swivel lever and positioned to urge said wheel against the edge of a tape windup reel
  • a guide pin lever pivotally mounted to said swivel lever, and a guide pin located in said guide pin lever for engaging said groove; and second spring connecting both said swivel and guide pin levers to force said guide pin toward the pivota-ble axis of said friction wheel, such that when said friction wheel is caused to rotate by said reel, said guide pin slides in said groove and the other end of said swivel lever is pivotally displaced for advancing the track selector by one step.

Landscapes

  • Braking Arrangements (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
US543584A 1965-04-23 1966-04-19 Stepping gear for the track selector in a multi-track tape recorder Expired - Lifetime US3386294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST023727 1965-04-23

Publications (1)

Publication Number Publication Date
US3386294A true US3386294A (en) 1968-06-04

Family

ID=7459844

Family Applications (1)

Application Number Title Priority Date Filing Date
US543584A Expired - Lifetime US3386294A (en) 1965-04-23 1966-04-19 Stepping gear for the track selector in a multi-track tape recorder

Country Status (5)

Country Link
US (1) US3386294A (de)
CH (1) CH437843A (de)
DE (1) DE1472040C3 (de)
GB (1) GB1083077A (de)
SE (1) SE305551B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584878A (en) * 1970-02-17 1971-06-15 Renato Seregni Tape recorder controls
US3628796A (en) * 1969-02-20 1971-12-21 Itsuki Ban Apparatus for shifting magnetic head in multitrack tape player
US3663022A (en) * 1969-06-23 1972-05-16 Itsuki Ban Apparatus for shifting magnetic head in multi-track tape player
US3839732A (en) * 1971-02-12 1974-10-01 Motorola Inc Magnetic tape head indexing means for multitract tape players
WO1981002804A1 (en) * 1980-03-24 1981-10-01 N Buglewicz Multi-track tape drive with reel end of tape sensing and rewind
US4876794A (en) * 1988-07-13 1989-10-31 Radia-Cam Inc. Variable mechanical advantage device utilizing a radial cam

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424132A (en) * 1942-08-22 1947-07-15 Aga Baltic Ab Automatic phonograph record changer
US2606641A (en) * 1947-08-20 1952-08-12 Edward E Kleinschmidt Carriage return mechanism for recording apparatus
US2692509A (en) * 1950-04-28 1954-10-26 A C Wickman Ltd Tool-slide actuating mechanism for lathes or other machines
US3127178A (en) * 1960-06-29 1964-03-31 Tape playing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424132A (en) * 1942-08-22 1947-07-15 Aga Baltic Ab Automatic phonograph record changer
US2606641A (en) * 1947-08-20 1952-08-12 Edward E Kleinschmidt Carriage return mechanism for recording apparatus
US2692509A (en) * 1950-04-28 1954-10-26 A C Wickman Ltd Tool-slide actuating mechanism for lathes or other machines
US3127178A (en) * 1960-06-29 1964-03-31 Tape playing machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628796A (en) * 1969-02-20 1971-12-21 Itsuki Ban Apparatus for shifting magnetic head in multitrack tape player
US3663022A (en) * 1969-06-23 1972-05-16 Itsuki Ban Apparatus for shifting magnetic head in multi-track tape player
US3584878A (en) * 1970-02-17 1971-06-15 Renato Seregni Tape recorder controls
US3839732A (en) * 1971-02-12 1974-10-01 Motorola Inc Magnetic tape head indexing means for multitract tape players
WO1981002804A1 (en) * 1980-03-24 1981-10-01 N Buglewicz Multi-track tape drive with reel end of tape sensing and rewind
US4876794A (en) * 1988-07-13 1989-10-31 Radia-Cam Inc. Variable mechanical advantage device utilizing a radial cam

Also Published As

Publication number Publication date
DE1472040A1 (de) 1969-01-16
GB1083077A (en) 1967-09-13
DE1472040B2 (de) 1974-03-07
CH437843A (de) 1967-06-15
SE305551B (de) 1968-10-28
DE1472040C3 (de) 1974-10-03

Similar Documents

Publication Publication Date Title
US4642712A (en) Automatic tape loading type recording and/or reproducing apparatus having a plurality of modes
US3386294A (en) Stepping gear for the track selector in a multi-track tape recorder
JPS6237457B2 (de)
USRE36570E (en) Automatic mode changeover mechanism for a tape recorder
US4470087A (en) Head base drive mechanism in tape player
JPH0150983B2 (de)
US4123015A (en) Automatic stopping device for tape recorder
US4805044A (en) Idler gear cut-off mechanism for a cassette tape recorder
JP2538279B2 (ja) モ―ド切換装置
JPH0150984B2 (de)
KR900002379B1 (ko) 테이프 레코오더의 테이프 감기 종료 검출장치
US3737600A (en) Tape recorder control with shaft rotation sensing mechanism for actuating switch
JP2552606Y2 (ja) ビデオカセットレコーダーの供給リール制動装置
JPS63214910A (ja) オ−トリバ−ス式テ−プレコ−ダ
JPH10228689A (ja) 磁気ヘッド搭載部材駆動機構および磁気記録再生装置
US5570253A (en) Selection lever sliding means for disengaging the selection gear from the main gear of a cassette tape recorder when selecting a mode
KR900001492Y1 (ko) 테이프 레코더의 자동 정지장치
KR200325842Y1 (ko) 캡스턴모터의제동장치
JPH034979B2 (de)
US5029028A (en) Single-motor changing tape player
JPH0135320Y2 (de)
KR100279210B1 (ko) 테이프덱브레이크장치
EP0345739A2 (de) Magnetisches Band-Aufnahme und -Wiedergabegerät
KR200180192Y1 (ko) 자기 기록 재생 장치
JP3420813B2 (ja) ブレーキ装置