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公开(公告)号：JPH11224445A
公开(公告)日：1999-08-17
申请号：JP2347698
申请日：1998-02-04
Applicant: SONY CORP
Inventor： YONEOKA HIDENORI , MAEHARA MASANORI , SUZUKI KAZUYOSHI
Abstract: PROBLEM TO BE SOLVED: To prevent the erroneous operation in the detection of the tape end in the case of using a miniature cassette. SOLUTION: By arranging a light emitting element 5 and a light receiving element 9 to the lower positions than a center line of the upper/lower parts of a reel 3 and to the upper positions than a lower side reel flange 17, the light reflected on an upper side reel flange 11 does not come up to the light receiving element due to having the excessive angle. Also, a bank-stated shield member 8 is erected so as to surround the lower part of the light emitting element, thereby the light coming toward the lower side reel flange 17 from the light emitting element 5 is interrupted. Consequently, the erroneous operation in the detection of the tape end is prevented, since almost no detecting light comes up to the light receiving element passing through the upper/lower sides of the tape 2 by reflecting from the inner surfaces of the upper/lower reel flanges.
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公开(公告)号：JPH05325478A
公开(公告)日：1993-12-10
申请号：JP886391
申请日：1991-01-29
Applicant: SONY CORP
Inventor： MAMIYA TOSHIO , YOSHIDA HIDEJI , MAEHARA MASANORI , FUKAHORI KENICHI
IPC: G11B15/665 , G11B23/087 , G11B23/28
Abstract: PURPOSE:To miniaturize the device for a normalized tape cassette used for the device such as a VTR, etc., by expanding the mouse part and putting the mechanism such as a rotary head drum of a loading device into the space. CONSTITUTION:The depth of the mouse part of tape cassette is expanded by forming tape reels 1, 2 small in diameter. Thereby, the mechanism of the loading devices such as the rotary head drum, tape guide, etc., can be out deeply into the mouse part 6 inside to make the occupied space small, and also the mechanism is simplified by reducing the movement of the mechanism.
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公开(公告)号：JPH05182293A
公开(公告)日：1993-07-23
申请号：JP34735691
申请日：1991-12-27
Applicant: SONY CORP
Inventor： KUSUI YOSHIO , KUMANO AKIRA , YOSHIDA HIDEJI , MAEHARA MASANORI
IPC: G11B15/08
Abstract: PURPOSE:To securely operate a light receiving part without being influenced by external light and without using a shield member for preventing the external light by arranging the light receiving part in a position shielded from the external light, such as in a tape cassette, etc. CONSTITUTION:Light emitted by both light sources 11 and 12 is passed through light detecting optical paths L1 and L2 in the tape cassette 1 to reach a tip part of a light transmission body 14, whereas the light is reflected and refracted by reflecting surfaces 14c and 14d, and is received by a photodetector 13. Under the state of receiving the light emitted by the light sources 11 and 12 by the photodetector 13, when a tape is traversing the optical paths L1 and L2, the light is not received by the photodetector 13, and when a light-transmissive leader tape connected to the tip side of the tape is traversing the optical path L1, only the light emitted by the light source 11 is received by the photodetector 13, and hence the tape top is detected. Then, when a leader tape on the rear end side is traversing the optical path L2, only the light emitted by the light source 12 is received by the photodetector 13 to detect the tape end. By this method, malfunction is diminished and the need of a shield member for preventing the external light is eliminated, and hence the constitution is simplified.
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公开(公告)号：JPS63149857A
公开(公告)日：1988-06-22
申请号：JP29689386
申请日：1986-12-13
Applicant: SONY CORP
Inventor： MAEHARA MASANORI , OSHIMA EIJI , MAMIYA TOSHIO , KUSUI YOSHIO
IPC: G11B15/675 , G11B15/68
Abstract: PURPOSE:To surely position the inserting and taking off positions of a cassette by abutting the guide part of the cover part of a cassette holder against a pressing ball at two positions. CONSTITUTION:When a cassette 1 is loaded and subjected to a cover closing operation, a slider 17 slides the cassette to a rear part with the energizing of a spring 57. When the cover is opened by pushing an ejection button, the locking part 37a of a circular arcuate guide piece 35 and the ball 40 of a pressing member 38 are abutted and stop once in a temporarily releasing state and the dropping of the cassette is prevented by a dropping prevention piece 20. By opening the cover with a hand further, the ball 40 runs over a stepping part 37, abutting against the locking part 37b and the turning in the cover closing direction is regulated. Consequently the positioning of the insertion and taking off of the cassette is ensured by abutting the ball 40 against locking part 37 and the dropping of the cassette caused by a careless ejection operation can be prevented.
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公开(公告)号：JP2001250295A
公开(公告)日：2001-09-14
申请号：JP2000062051
申请日：2000-03-07
Applicant: SONY CORP
Inventor： OKADA SEIJI , MAEHARA MASANORI , FUJII HIROSHI
IPC: G11B15/26
Abstract: PROBLEM TO BE SOLVED: To provide a video deck that the assemblability and the structure are simplified in a capstan transmission mechanism unit for controlling the rotary-driving of a real for traveling the tape of a tape cassette. SOLUTION: This video deck is provided with an LS main body part for fixing a tape cassette to a reel and moving it to the position of driving control, a tape driving control main body part for loading the tape of the tape cassette fixed to the LS main body part in a position for the sliding contact of a video recording/reproducing drum, and also guiding the tape to a position for its traveling, and a swing mechanism for receiving a rotary-driving source transmitted from a capstan driving source for traveling the tape to rotary-drive the reel. This swing mechanism is provided with a swing gear for transmitting rotation to the reel, a transmission gear support shaft part having an engaging hole for engaging a swing gear support shaft provided in the swing gear freely rotatably, a transmission engaging gear for engaging the outer periphery of the transmission gear support shaft part freely rotatably, and an idle gear for transmitting the driving source of the capstan to the transmission engaging gear.
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Patent Agency Ranking
公开(公告)号：JP2000174456A
公开(公告)日：2000-06-23
申请号：JP34516498
申请日：1998-12-04
Applicant: SONY CORP
Inventor： TAMURA MASATO , MAEHARA MASANORI , MATSUKI MARI
Abstract: PROBLEM TO BE SOLVED: To miniaturize a magnetic record regenerating device. SOLUTION: Connectors 11, 12 are mounted on a pattern surface of a flexible printed wiring board 9 connected to a sensor, a flexible printed wiring board 4 connected to a drum motor 2 and a flexible printed wiring board 8 connected to a capstan motor are inserted and connected to the connectors 11, 12, respectively, and three flexible printed wiring boards 4, 8, 9 are integrated and pulled out to the outside as a single flexible printed wiring board 9. That is, since at least one connector is mounted on at least one pattern surface of flexible printed wiring boards connected to each of a plurality of electronic components and at least one of other flexible printed wiring boards is connected to a connector, it is possible to decrease the number of flexible printed wiring boards which are pulled out to the outside, and to miniaturize the device and an electronic equipment with the device.
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公开(公告)号：JPH11186750A
公开(公告)日：1999-07-09
申请号：JP35251597
申请日：1997-12-22
Applicant: SONY CORP
Inventor： TOMITA MINORU , MAEHARA MASANORI
Abstract: PROBLEM TO BE SOLVED: To realize light weight and high bending.twisting rigidity, and enable accurate magnetic recording and reproducing, by a method wherein two parts out of four side plate linkage parts of corners of a chassis are linked without seams by drawing work, and the other two parts are bonded by mechanical or metal working means. SOLUTION: Cornrs 21, 23 between a rear side plate 11 and right and left side plates 13, 17 are worked by drawing and have no seams, and parts between a front side plate 15 and the right and the left side plates 13, 17 are bonded by caulking work. That is, after the right and the left side plates 13, 17 and the front side plate 15 are raised by bending work, caulking work parts 25, 27 are superposed, every two portions of the right and the left are caulked by pushing a punch, and the right and the left side plates 13, 17 are bonded to the front side plate 15. The fixing force in manufacturing is mainly applied vertically to the rear side plate 11, and the grasping force for employment is applied vertically to the front side plate 15. Four edge linked side plates turn to a strength member and rigidity is high, so that bending.twisting rigidity is high and accurate magnetic recording and reproducing are enabled.
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公开(公告)号：JPS63181157A
公开(公告)日：1988-07-26
申请号：JP1189187
申请日：1987-01-21
Applicant: SONY CORP
Inventor： MAEHARA MASANORI , KUMAGAI TAKAO , MAMIYA TOSHIO , KUSUI YOSHIO
IPC: G11B15/675 , G11B33/06 , H04N5/225
Abstract: PURPOSE:To contrive the miniaturization of a video camera and to improve the convenience of use by arranging a cassette holder to the lower side of a head drum and loading a tape cassette to the cassette holder from an opposite side to a cassette cover so as to direct the cassette cover upward. CONSTITUTION:The cassette loading part is arranged to the lower side in a cabinet 10 and the cassette holder 14 holding the tape cassette 15 is moved to the side of the cabinet 10 to load/unload the tape cassette 15. Then the cassette cover 16 is directed upward and the tape cassette 15 is loaded to the cassette holder 14 from the opposite part to the cassette cover 16 downward. Thus, a head drum 12 is arranged at the upper side in the cabinet 10 and the cassette holder 14 is arranged to the lower side respectively and the falling of the cassette 15 in the case of ejection is prevented.
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公开(公告)号：JPS63181153A
公开(公告)日：1988-07-26
申请号：JP1189287
申请日：1987-01-21
Applicant: SONY CORP
Inventor： MAEHARA MASANORI , KUMAGAI TAKAO , YOSHIDA HIDEJI , TSUYAMA MANABU
IPC: G11B15/665 , G11B15/675
Abstract: PURPOSE:To minimize the size of a projection forming a recessed part to escape a cassette cover formed to a cover plate by moving the cover plate to cover the opening of the cassette loading position of a cabinet together with a cassette holder. CONSTITUTION:The cover plate 32 is provided on the cassette holder 28 so as to be slided together with the cassette holder 28 and the recessed part 33 to escape the cassette cover 40 when the cassette cover 40 is opened is formed to the cover plate 32. When the cassette holder 28 is slid to load the tape cassette 23 to the loading position, the cover plate 32 closes the loading part. Thus, the cover plate 32 to close the opening 35 of the loading position is slid together with the cassette holder 28 and no relative motion is generated with the tape cassette 23. Thus, the size of the recessed part formed to the cover to escape the cassette cover is minimized.
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公开(公告)号：JP2004079019A
公开(公告)日：2004-03-11
申请号：JP2002234099
申请日：2002-08-09
Inventor： YOSHIKAWA HIBIKI , KAMIKUI KEIZO , UNO KATSUAKI , OTA SHUICHI , MAEHARA MASANORI
Abstract: PROBLEM TO BE SOLVED: To prevent degradation in the roundness of the outer peripheral part of a rotary drum caused by the distortion of the outer peripheral part of the rotary drum due to the stress caused when an outer ring of a ball bearing are press fitted to the center hole part provided with vertical grooves for bonding of the rotary drum.
SOLUTION: A phase of the vertical grooves 81 for bonding formed on an inner peripheral surface of the center hole 79 of the rotary drum 26, whereto the ball bearing 29 is press fitted, is made to coincide with through-holes 80 of the rotary drum 26.
COPYRIGHT: (C)2004,JPO
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