公开(公告)号：JP2000306293A

公开(公告)日：2000-11-02

申请号：JP10982499

申请日：1999-04-16

Applicant: SONY CORP

Inventor： TAKAHASHI KATSUNORI ,  KUSUI YOSHIO

IPC: G11B15/18 ,  G11B15/665

Abstract: PROBLEM TO BE SOLVED: To provide a video cassette recorder capable of shortening the time of tape loading even when a cassette is in a tape top position (or in a tape end position). SOLUTION: A video cassette recorder is provided with a motor for magnetic tape loading/unloading, and a motor for tape cassette loading/discharging, the reel base 3 of a tape feeding reel side is set in a braked state during the loading/unloading operation of a magnetic tape, and a magnetic tape is drawn out from the tape winding reel side of a reel base having no brake. In this case, the motor for tape cassette loading/discharging is driven in linkage with the detection of the tape top of the tape cassette, a slider 44 and a second brake releasing slider 36 are slid and moved via a rack plate, a brake mechanism 22 is released from the reel base 3 of the tape feeding reel side is released to draw out a tape from the tape feeding reel, and a tape loading operation is then performed.

公开(公告)号：JP2565237B2

公开(公告)日：1996-12-18

申请号：JP25431187

申请日：1987-10-08

Applicant: SONY CORP

Inventor： KUSUI YOSHIO ,  OOSHIMA EIJI

IPC: G11B15/665 ,  G11B15/61

公开(公告)号：JPS6329356B2

公开(公告)日：1988-06-13

申请号：JP3446686

申请日：1986-02-19

Applicant: SONY CORP

Inventor： MATSUMOTO YOSHIHARU ,  FUJIMORI TOORU ,  KUSUI YOSHIO ,  OOTA SHUICHI ,  KUMAGAI ATSUHIRO

IPC: G11B23/087

公开(公告)号：JPS6329355B2

公开(公告)日：1988-06-13

申请号：JP3446586

申请日：1986-02-19

Applicant: SONY CORP

Inventor： MATSUMOTO YOSHIHARU ,  FUJIMORI TOORU ,  KUSUI YOSHIO ,  OOTA SHUICHI ,  KUMAGAI ATSUHIRO

IPC: G11B23/087

公开(公告)号：JPS6316826B2

公开(公告)日：1988-04-11

申请号：JP965982

申请日：1982-01-25

Applicant: SONY CORP

Inventor： FUJIMORI TOORU ,  KUSUI YOSHIO

IPC: G11B23/08 ,  G11B23/087

公开(公告)号：JPS61210588A

公开(公告)日：1986-09-18

申请号：JP4112586

申请日：1986-02-26

Applicant: SONY CORP

Inventor： MATSUMOTO YOSHIHARU ,  FUJIMORI TORU ,  KUSUI YOSHIO ,  OOTA SHUICHI ,  KUMAGAI ATSUHIRO

IPC: G11B23/087

Abstract: PURPOSE:To prevent a torsion coil spring from changing a direction thereof or dropping off in assembly and facilitate assembly by attaching the torsion coil spring together with a front cover to a cassette casing with the spring fixed temporarily on an external periphery of a fulcrum pin of a front cover. CONSTITUTION:On an internal side face of a pair of right and left side plate sections 37a of a front cover 37, a pair of fulcrum pins 41 are integrally formed. The pins 41 are supported by a bearing to pin holes 42 of right and left both sides bracket sections 36 of a front side of an upper half 2 and the front cover 37 is turnable. In order to attach the front cover 37 to the casing 2, end sections 58a and 58b of an integral torsion coil spring 58 with a little torsion energized condition are inserted into an external periphery of the fulcrum pins 41 to lock temporarily with spring locking projected sections 56 and 57 not so as to drop the torsion coil spring 58 from the fulcrum pins 41 unexpectedly. Under this condition, when the front cover 37 is attached to the casing 2, an end section 58a of the torsion coil spring 58 is pressed by a spring locking section 59 and the front cover 37 is turned and energized in a closing direction.

公开(公告)号：JPS61210586A

公开(公告)日：1986-09-18

申请号：JP4112386

申请日：1986-02-26

Applicant: SONY CORP

Inventor： FUJIMORI TORU ,  KUSUI YOSHIO

IPC: G11B23/087

Abstract: PURPOSE:To enhance a sealing effect of a tape in a cover closing condition by providing a pair of end surfaces in parallel to a lower end section rear surface of a front cover and a lower end section front surface of a rear cover and contacting the pair of end surfaces in tight when the tape is surrounded before and after with the front cover and the rear cover. CONSTITUTION:In a cover closing condition of a front cover 14 and a rear cover 34, a front side of a tape 6 is surrounded by the front cover 14 from a front and a rear portions and a rear side thereof by the rear cover 34. Respective end surfaces 37a and 39a thereof contact in tight in parallel from the front and the rear portions. An upper surface opening 13 is completely closed by an upper plate section 31 of the front cover 14 and an upper cover section 41 of the rear cover 34, so that there is no fear that the tape is broken by dusts and the like. In a condition that the tape is mounted at a cassette mounting position, the front cover 14 turns upward against a pair of return springs and the rear cover 34 is guided by a pair of guide grooves to be opened. Lower end sections 37 and 39 move substantially vertically upward and the lower end section 37 of the front cover 14 does not protrude remarkably forward of a cassette casing.

公开(公告)号：JPS61210582A

公开(公告)日：1986-09-18

申请号：JP3446586

申请日：1986-02-19

Applicant: SONY CORP

Inventor： MATSUMOTO YOSHIHARU ,  FUJIMORI TORU ,  KUSUI YOSHIO ,  OOTA SHUICHI ,  KUMAGAI ATSUHIRO

IPC: G11B23/087

Abstract: PURPOSE:To prevent dusts and the like from invading into a cassette by providing an inserting hole of a lock releasing pin closing on a lower surface of a main body in a lower half and an engaging hole of the lock releasing pin closing an upper end in the lower surface of the main body. CONSTITUTION:When a tape cassette is mounted an a video recorder, a lock releasing pin 103 disposed in a cassette mounting position in the video recorder is inserted from an inserting hole 95 of a lower half 3 and into an engaging hole 104 of a claw body 90. Since the engaging hole 104 of the claw body 90 has an upper end thereof closed and a blind hole and the inserting hole 95 of the lock releasing pin 103 of the lower half 3 is usually closed on a lower surface 101a of a main body 101, from these inserting hole 95 and the engaging hole 104, dusts and the like does not enter the tape cassette. Accordingly, the sticking of the dusts and the like to the tape due to entering the same to the tape cassette and the generation of a dropout and the like during recording and reproducing the tape can be previously prevented.

公开(公告)号：JPS61210581A

公开(公告)日：1986-09-18

申请号：JP3446486

申请日：1986-02-19

Applicant: SONY CORP

Inventor： MATSUMOTO YOSHIHARU ,  FUJIMORI TORU ,  KUSUI YOSHIO ,  OOTA SHUICHI ,  KUMAGAI ATSUHIRO

IPC: G11B23/087

Abstract: PURPOSE:To return a claw body by a spring force to engage a resilient engaging piece with teeth section of a tape reel by inserting a torsion spring to a spring supporting pin at a center coil section and abutting a play end section against a lower half. CONSTITUTION:A torsion spring 91 is inserted into a spring supporting pin 102 of a claw body 90 by a center coil section 91 thereof from an upper part and attached and a pair of right and left play end sections 91b abut against a pair of spring receiving sections 99 of a pair of claw bodies 88. Accordingly, when the claw bodies are rotated and energized in a direction shown by arrows (g) and (h) centering a pair of supporting pins 93, the claw body 90 is slid and exerted in a direction of (i) shown by an arrow. The claw body 88 is prevented from rotating in the directions of (g) and (h) since a stopper 100 abuts against a rear surface wall 3c of a lower half 3. A claw section 97 engages with a teeth section 106 and a tape reel 8 is prevented from rotating in a direction shown by an arrow (a) and a tape reel 9 is prevented from rotating in a direction shown by an arrow (b). In this manner, the number of parts and assemblings can be reduced and a structure can be remarkably simplified.

公开(公告)号：JPS5862878A

公开(公告)日：1983-04-14

申请号：JP15990181

申请日：1981-10-07

Applicant: SONY CORP

Inventor： MATSUMOTO YOSHIHARU ,  FUJIMORI TOORU ,  KUSUI YOSHIO ,  OOTA SHIYUUICHI ,  KUMAGAI ATSUHIRO

IPC: G11B23/087

Abstract: PURPOSE:To turn a reel in the direction for winding a tape, and to eliminate loosening of the tape, by providing 2 pawl bodies engaged with the ratchet part of a tape reel, and shifting the timing of its engagement of 2 pawl bodies. CONSTITUTION:In the center part of the rear side of a tape cassette, the first pawl body 88 is pivotally supported by a supporting pin 93 to be freely turnable, the second pawl body 90 is provided to be slidable along a guide plate part 94, and when locking, it is engaged with a ratchet part of a reel. In case of a reproducing made, by a lock release pin interlocked with an operation button, the pawl body 90 moves downward in the figure, and by being pressed by it, the pawl body 88 turns to the inside, and lock is released. In case of a stop mode, the pawl body 90 is engaged at first, the reel is slightly turned in the direction as indicated with arrows (m), (n) in the figure, is loosened, and after that, the pawl body 88 is engaged with the torsion spring 91 and is locked. Therefore, loosening of a tape can be eliminated by providing 2 pawl bodies.