公开(公告)号：JPS63220449A

公开(公告)日：1988-09-13

申请号：JP5237787

申请日：1987-03-07

Applicant: SONY CORP

Inventor： YOSHIDA HIDEJI ,  OSHIMA EIJI ,  MAMIYA TOSHIO ,  MAEHARA MASANORI ,  FUKAHORI KENICHI

IPC: G11B15/665

Abstract: PURPOSE:To simplify a structure and to miniaturize a device by fitting a rotary head drum on one side of a movable chassis, supporting the other end side pivotally with a fixed chassis by a shaft, turning it around this shaft and displacing the rotary head drum toward the side of a cassette. CONSTITUTION:The rotary head drum 6 is supported by a cylindrical drum receiver part 9 in its inside formed on one side of the movable chassis 7, whereas an arm 10 is provided on the other side, and a cylindrical bearing part erected in the middle part of the arm is inserted by a shaft 13, so that this side is turnably fitted to the fixed chassis. When the movable chassis 7 is turned clockwise, the rotary head drum 6 is moved into a space 3a for a drum receiver of the cassette 3, and at the same time, the movable chassis 7 up to the rotary head drum 6 are positioned in height at the three spots of 1st-3rd boss parts 15, 18 and 20. On the other hand, the movable chassis 7 is positioned in its turning direction by a shaft 21 provided in the vicinity of one side part 17a of a positing part 17 and the boss part 18. By this method, simplification of a structure, miniaturization of a mechanism and lightening of a device can thus be contrived.

公开(公告)号：JPS63211149A

公开(公告)日：1988-09-02

申请号：JP4420987

申请日：1987-02-27

Applicant: SONY CORP

Inventor： YOSHIDA HIDEJI ,  MAEHARA MASANORI ,  FUKAHORI KENICHI ,  YAMAMOTO KAZUTOSHI

IPC: G11B15/61 ,  G11B15/665

Abstract: PURPOSE:To prevent a tape from being damaged due to the abutment of an inclined guide against a tape on the way of loading by displacing a guide base on a loading terminal position, receding a rotary guide and abutting the inclined guide against the tape. CONSTITUTION:When a cassette 18 is loaded, a motor 25 is driven, the guide base 17 is slided along a guide rail 14 by rotating a loading ring 20 and the rotary guide 15 planted on a base 17 allows the tape 19 to be wound around the outer periphery of a cylinder 13. When the tape 19 arrives at the loading terminal position, the shaft of the guide 15 is engaged with the receiving groove 21a of a guide base displacing member 21 to displace the base 17 and abut the inclined guide 16 against the tape 19 and a swing arm 29 is rotated in the clockwise direction to set up the cylinder 13 on a prescribed position. Thereby, the tape 19 can be prevented from being damaged by upper and lower flange parts due to the abutment of the inclined guide 16 against the tape 19 on the way of loading.

公开(公告)号：JPS63113856A

公开(公告)日：1988-05-18

申请号：JP25912386

申请日：1986-10-30

Applicant: SONY CORP

Inventor： MAEHARA MASANORI ,  YOSHIDA HIDEJI ,  FUKABORI KENICHI ,  KUMAGAI TAKAO

IPC: G11B15/675 ,  G11B15/665

Abstract: PURPOSE:To attach and detach a tape cassette to and from the side of a holder, by providing a cassette insertion port in the lateral direction of the cassette holder, and releasing the lock of a front cover by a prescribed cam plate at the time of the descent of a holder. CONSTITUTION:A cassette insertion port 10 is provided in the lateral direction of a cassette holder 5, and the holder 5 is supported so that it can move up-and- down freely, by a pair of supporting arms 26, 27. Also, the engaging pin 31 of the supporting arm 26 is engaged to an inclined cam groove 55 of a cam plate 54. When a tape cassette 1 is inserted into this holder 5 from the side and allowed to descend, the lock release piece 56 of the cam plate 54 is projected into the holder by the movement of the engaging pin 31, and the lock of a front cover lock piece 4 is released. Accordingly, the cassette 1 can be attached and detached from the side direction, therefore, the relation of a drum of a VTR and the holder can be placed freely.