公开(公告)号：JPH09282737A

公开(公告)日：1997-10-31

申请号：JP8534896

申请日：1996-04-08

Applicant: SONY CORP

Inventor： TAKAHASHI KATSUNORI ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  SUZUKI KAZUYOSHI

IPC: G11B15/43

Abstract: PROBLEM TO BE SOLVED: To simplify the manufacture of a magnet by making a magnet for electrically detecting the rotational amount of a tension regulator arm to be an integral type of N/S bipolar magnetization. SOLUTION: A magnet 51 constituting a rotational amount detecting means fixed to a tension regulator arm 40 is composed of a flat block-like member, and pole projections 55a and 55b are formed by a long groove 53 provided in its lower surface. An N pole is magnetized in one pole projection 55a, and an S pole is magnetized in the other pole projection 55b. Thus, by integrally forming the magnet 51 of N/S bipolar magnetization in one magnetic material, the magnet 51 is simply manufactured at low costs to obtain an economical and highly productive tape recording/reproducing device. Preferably, the magnet 51 is fixed to a height adjusting member 41 loaded in the tension regulator arm 40.

公开(公告)号：JPH09212964A

公开(公告)日：1997-08-15

申请号：JP2019996

申请日：1996-02-06

Applicant: SONY CORP

Inventor： TAKASE MASATAKE ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  SUZUKI KAZUYOSHI ,  TAKAHASHI KATSUNORI

IPC: G11B15/675

Abstract: PROBLEM TO BE SOLVED: To obtain a recording and reproducing apparatus such as VCR apparatus which can detect insertion of tape cassette and judge a kind of tape cassette and erroneous insertion thereof with one cassette detecting mechanism provided at the cassette holder inlet side. SOLUTION: The apparatus is provided with a cassette insertion detecting member which is rotatable to the inlet side of the cassette holder 7 and a cassette insertion detection switch 5 provided near the cassette insertion detecting member. Here, when a cassette is inserted into the cassette holder 7, the cassette insertion detecting member which is in contact with the cassette rotates, causing the cassette insertion detection switch 51 to turn ON. A kind of cassette and normal insertion of cassette are judged by judging the operation time while the cassette insertion detection switch 51 is operated. When judgment result is irregular, the cassette is ejected.

公开(公告)号：JPH09180325A

公开(公告)日：1997-07-11

申请号：JP33730495

申请日：1995-12-25

Applicant: SONY CORP

Inventor： TAKASE MASATAKE ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  SUZUKI KAZUYOSHI ,  TAKAHASHI KATSUNORI

IPC: G11B15/675

Abstract: PROBLEM TO BE SOLVED: To make a roller for movably operating the cassette on a cassette holder bring into press-contact therewith with a constant force even though the thickness of cassettes are various and also to fix the cassette with strong pressure to a cassette mounting part by this roller. SOLUTION: 1st and 2nd turning arms 104, 110 are provided on the cassette holder 90, and a tension spring 114 is stretched between these turning arms 104, 110. Each turning arm 104, 110 is integrally energized for turning in accordance with the difference in angular moments received from the tension spring 114, thereby the roller 108 is brought into press-contact with the cassette on the cassette holder 90. When the turning arms 104 and 110 is separated from each other, the cassette is press-fixed to the cassette mounting part by the energizing force of the tension spring 114.

公开(公告)号：JPH08147813A

公开(公告)日：1996-06-07

申请号：JP28022194

申请日：1994-11-15

Applicant: SONY CORP

Inventor： UETAKE AKIHIRO ,  SUZUKI KAZUYOSHI ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE

IPC: G11B15/29

Abstract: PURPOSE: To simplify and miniaturize the whole constitution of a pinch roller elevating, lowering and rotating mechanism by supporting a pinch roller by a movable supporting member and elevating, lowering and rotating the movable supporting member by means of driving power transmitted from a driving source. CONSTITUTION: A rotating member 30 is rotated by rotating a driving power transmission member 25, an elevating/lowering member 35 engaged with a cam groove 31 formed on the rotating member 30 is elevated and lowered according to the displacement of the cam groove 31. With this motion, a movable supporting member 22 supporting a pinch roller 11 is elevated and lowered and a rotation transmitting member 40 engaged with a cam groove 27 formed on the driving power transmission member 25 is rotated according to the displacement of the cam groove 27. Then, the elevating/lowering member 35 is rotated about the rotation center of a shaft member 20 while being accompanied by the movable supporting member 22. Consequently, the pinch roller 11 supported by the movable supporting member 22 is located in the position separated from a capstan or in the position in which a moving medium is brought into press-contact with the capstan.

公开(公告)号：JPH07161101A

公开(公告)日：1995-06-23

申请号：JP33955293

申请日：1993-12-02

Applicant: SONY CORP

Inventor： AKIMOTO KATSUJI ,  MAMIYA TOSHIO ,  TAKASE MASATAKE ,  UETAKE AKIHIRO ,  SUZUKI KAZUYOSHI

IPC: G11B15/61 ,  G11B15/665

Abstract: PURPOSE:To provide a guide mechanism for the drawing-out of a tape which protect the tape from a large tension which is newly applied to the tape by the reaction of a large tension which is applied to the tape first and, further, which facilitate the high speed quick feed or rewind of the tape. CONSTITUTION:A guide arm 51 which is supported by a mechachassis is swung and a tape is drawn out from, a cassette-half by a guide roller 53 which is supported by the swinging end of the guide arm 51 so as to be able to rotate. When the tape is drawn out, a cam gear 55 is turned and a cam lever 59 is swung synchronously with the guide arm 51 by the retaining between the cam trench 57 of the cam gear 55 and a cam follower. When the guide arm 51 is positioned at a loading position where the tape is drawn out, the retainer 5101 of of the guide arm 51 is positioned between the two retaining pins 5901 of the cam lever 59 to limit the swinging range of the guide arm 51 at the loading position.

公开(公告)号：JPH07141723A

公开(公告)日：1995-06-02

申请号：JP28493593

申请日：1993-11-15

Applicant: SONY CORP

Inventor： UETAKE AKIHIRO ,  SUZUKI KAZUYOSHI ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE

IPC: G11B15/43

Abstract: PURPOSE:To restrain the increase of tape tension on a small cassette having a small hub diameter by making the target value of the tape tension of the small cassette small in a device capable of recording and reproducing large and small cassettes. CONSTITUTION:Whether it is the large tape cassette 1 or the small tape cassette is judges by detecting the on/off of a cassette discrimination switch 56 by means of a microcomputer 57. The microcomputer 57 rotates a cam plate 43 by using gears 50 to 54 by a motor 55 through a driver 58, and the length of the tension spring 35 of a tension regulator arm 30 is changed and the set value of the tension is changed. By such a mechanism, the set value of back tension is made small in the case of using the small tape cassette, so that minimum and maximum tension in the case of using it is within the tension change in the case of using the large tape cassette.

公开(公告)号：JPH0729250A

公开(公告)日：1995-01-31

申请号：JP17173393

申请日：1993-07-12

Applicant: SONY CORP

Inventor： SUZUKI KAZUYOSHI ,  UETAKE AKIHIRO ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE

IPC: G11B15/07 ,  G11B15/22 ,  G11B15/32 ,  G11B25/06

Abstract: PURPOSE:To obtain a recording-reproducing device capable of transferring a detecting means to detect information on the kind, contents, etc., of a tape cassette and reel lock releasing means to proper positions in accordance with each of tape cassettes different from each other in size. CONSTITUTION:A means 71 to detect information on a tape cassette and reel lock releasing means 72a, 72b are synchronously transferred to positions at the time of use of a large or small tape cassette in linkage with the transfer of reel stands 44, 45 through a swinging driver 54, a moving lever 73, a driving link 74, a detecting mechanism holding member 75 and a reel lock releasing plate 77.

公开(公告)号：JPH06152077A

公开(公告)日：1994-05-31

申请号：JP30403192

申请日：1992-11-13

Applicant: SONY CORP

Inventor： SAKURAI TERUYASU ,  KATSUMOTO TORU ,  KUMAGAI ATSUHIRO ,  JINBO HIDETO ,  MAMIYA TOSHIO

IPC: H05K1/02 ,  H05K1/00 ,  H05K1/11

Abstract: PURPOSE:To obtain a flexible board to prevent breaking of a conductor pattern due to a bending stress of the flexible board in a reinforcing plate end part of a flexible board terminal part by a simple constitution. CONSTITUTION:An opening hole 13 is formed on the rear end side of a reinforcing plate 9 as a means for not concentrating stress to be imposed on a conductor pattern and a base film of a flexible board 1 near the rear end part of the reinforcing plate 9 for lowering stiffness of the rear end part of the reinforcing plate 9 so as to enable bending and deformation.

公开(公告)号：JPH0266761A

公开(公告)日：1990-03-06

申请号：JP21668088

申请日：1988-08-31

Applicant: SONY CORP

Inventor： OSHIMA EIJI ,  TSUYAMA MANABU ,  MAMIYA TOSHIO ,  YOSHIDA HIDEJI

IPC: G11B15/32 ,  G11B15/22 ,  G11B15/675

Abstract: PURPOSE:To eliminate sag due to an unnecessary rotation and to prevent the damage of a tape by sliding the projecting part for rotation communication with spring force in a discharging direction at the time of discharging a cassette and keeping the engaging condition with a recessed part until a reel is locked. CONSTITUTION:When the phase of a recessed part 105 of a reel 102 and a projecting part 5 of a shaft part 4 is dislocated at the time of installing a tape cassette 101, a projecting part 105 and the projecting part 5 are abutted, the projecting part 5 is pushed down while a spring 6 is compressed, the projecting part 5 is rotated on an inclined surface 13 of projecting parts 104 and 5 and the position with a recessed part 104 is matched. When the recessed part 105 and the projecting part 5 are fitted, the spring 6 is compressed on the upper surface of a bearing hole 103 and the projecting part 5 is pressed down until a reel lock is released. At the time of discharging, the cassette 101 is pushed up with the spring 6, and the fitting condition of the recessed part 105 and the projected part 5 is kept untill the reel 102 is locked. Thus, the sag of the tape due to the unnecessary rotation of the reel is eliminated and the damage to the tape is prevented.

公开(公告)号：JPH0262913A

公开(公告)日：1990-03-02

申请号：JP21557788

申请日：1988-08-30

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  OSHIMA EIJI ,  BABA HIROMITSU ,  TSUYAMA MANABU

IPC: G01D5/245 ,  G01D5/244 ,  G11B15/093

Abstract: PURPOSE:To improve the resolution of the detection of rotation by disposing a disk where an N pole and an S pole are magnetized at intervals of specified angle opposed to a rotor. CONSTITUTION:A Hall element 6 is disposed by opposed to the magnetized part of the disk 2 and it makes an output signal from a magnetism sensitive element into a pulse every change of specified amplitude to output. The output signal from the Hall element 6 is supplied to a comparator 13 through an amplifier 7 and an A/D converter 11. Plural reference values corresponding to the output signal from the converter 11 are supplied to the comparator 13 from a table 14. In the comparator 13, the output signal from the A/D converter 11 is compared with plural reference values from the table 14. When the signal coincides with them, the pulse is outputted from the comparator 13. The pulse outputted from the comparator 13 is supplied to a counter 15 and the output signal from the counter 15 is supplied to a display circuit 9 so that the display of the counter is performed. The output signal from the counter 15 is made to pass a system control circuit 10 so as to detect the abnormality, etc., of the rotation of a reel 1. Thus, the resolution of the detection of rotation can be improved without lowering rotational torque.