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81. 发明专利

JPS63100656A MAGNETIC TAPE GUIDE DEVICE FOR MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS63100656A
公开(公告)日：1988-05-02
申请号：JP24546286
申请日：1986-10-17
申请人： HITACHI LTD
发明人： KATONO NOBORU , HASHIGUCHI YASUHIRO
IPC分类号： G11B15/60 , G11B15/61
摘要： PURPOSE:To simplify constitution and to facilitate assembly by burying, in a joining part between a table guide and a nut, a screw loosening preventive which prevents a screw from becoming loose to a prescribed rotation torque. CONSTITUTION:A cylindrical tape guide 5A is inserted into a journal 21A in a tape guide device erected in a chassis 2. The guide 5A and the not 10A are press fitted into press fit joining 5b and 10a, and all of them are integrally joined. The nut 10A is screwed in an external screw part 21a. Since a resin moldings 22 becoming the screw loosening preventive is buried in the screw part 21a, a screw is never loosened as long as a prescribed rotation torque is applied to it. The nut 10A is fine rotated to adjust the height of the integral guide 5A. Since the tape guide 5a and the nut 10A are integrally formed in such a way, the structure is simple and the assembly is significantly facilitated accordingly.

82. 发明专利

JPS63100655A CYLINDER FITTING DEVICE 失效
公开(公告)号：JPS63100655A
公开(公告)日：1988-05-02
申请号：JP24521486
申请日：1986-10-17
申请人： HITACHI LTD
发明人： SHIBATA YOSHIHIRO , KATONO NOBORU , HASHIGUCHI YASUHIRO
IPC分类号： G11B33/12 , G11B15/61 , G11B15/665
摘要： PURPOSE:To secure the accuracy of the relative position between a cylinder and a cassette and to reduce costs by integrally forming guide pins positioning when a tape cassette is loaded on a cylinder fitting base. CONSTITUTION:The guide pins 2 and 2a position the tape cassette 5 placed on a chassis 3 in the direction of XY, while the guide pins 2, 2a, 2b, 2c position it in the height direction. A pull-out member 7 pulls the tape 6 out of the cassette 5, which roughly comes into contact with the cylinder 4 loaded onto the cylinder fitting base 1 fixed on the chassis 3 with a screw. Hence a signal is transmitted and received. Since the guide pins are integrally formed on the fitting base 1, the side of the chassis 3 requires no guide pin. Consequently, compared with the constitution that guide pins are fitted to the side of the chassis, no cumulative assembly error occurs, thereby easily securing accuracy, Moreover the man-hour can be reduced to reduce the costs.

83. 发明专利

JPS62167694A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS62167694A
公开(公告)日：1987-07-24
申请号：JP811686
申请日：1986-01-20
申请人： HITACHI LTD
发明人： SHIBATA YOSHIHIRO , KATONO NOBORU , YOKOTA HAJIME
IPC分类号： G11B33/12 , G11B15/08 , G11B33/02
摘要： PURPOSE:To reduce manufacture man-hours and to improve the productivity by implanting an element detecting the rotation of a reel, a light emitting body, a light receiving body and a switch detecting an erroneous erasure preventing claw on the same printed wiring board and fixing the printed wiring board to a chassis. CONSTITUTION:Rotation detecting elements 18, 19, a light emitting body 20, light receiving bodies 21a, 21b, an erroneous erasure prevention switch 23, a mode switch 24 and cassette switches 36, 37 are implanted into the one printed board 38 by soldering. A signal from each element and the switch is collected to a plug 39 through copper foil in the board 38 and sent to the device main body via a single connector 40 and a lead wire 41. Since the printed board 38 is fixed to the chassis 9 by a screw 42, the connection to the device main body with respect to the elements and the switches has only one position. Thus, the number of connectors and lead wires is decreased to reduce the production man-hours thereby making the system suitable for automatic assembling.

84. 发明专利

JPS6286569A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS6286569A
公开(公告)日：1987-04-21
申请号：JP22639985
申请日：1985-10-11
申请人： HITACHI LTD
发明人： HASHIGUCHI YASUHIRO , KATONO NOBORU , SHIBATA YOSHIHIRO
IPC分类号： G11B15/66 , G11B15/18 , G11B15/675
摘要： PURPOSE:To correctly connect a bracket with a gear on a base by disposing a bearing in any of brackets at both sides, disposing a reference hole and inserting a shaft of the gear into the bearing and the reference hole. CONSTITUTION:Bearings 45, 46 disposed at vertical two positions on a right side bracket 2 are set so as to maintain a prescribed position relation between a worm 10 and a drive gear 9. Support shafts of gear lines 32, 33,34, 36, 37, 38 in a VTR are all formed integrally with a base 53. In one end of a right side of the base 53, a reference hole 57 for supporting a shaft of a worm 10 of a front loading mechanism is formed and becomes a reference when assembling the front mechanism. Namely, by inserting the shaft of the worm 10 into the reference hole 57 of the base 53, a torque transmission path for driving a cassette 1 through the worm 10 via the gears 32, 33, 34, 35 from a capstan motor 21 makes an interval of the gears highly accurate.

85. 发明专利

JPS6212948A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS6212948A
公开(公告)日：1987-01-21
申请号：JP15027385
申请日：1985-07-10
申请人： HITACHI LTD
发明人： INAMI KAZUMASA , UNO MASATO , KATONO NOBORU
IPC分类号： G11B15/665 , G11B15/61
摘要： PURPOSE:To reduce the amount of adjusting and adjust automatically by executing the positional adjustment of a tape path in the direction of the width of a magnetic tape against a rotary cylinder by using a guide part provided integrally a member supporting the rotary cylinder. CONSTITUTION:The supporter part 22 that supports the rotary cylinder 10 in a state slant against a chassis 18, catcher parts 23 to position a tape drawer, and the guide part 30 to position an adjusting jig, are integrally formed with a synthetic resin. And by using the jig positioned by the guide part 30, the position of the tape drawer in the direction of the width of the magnetic tape is adjusted. The pair of catcher parts 23 are provided with a protruding part 26 to demarkate a V-shaped groove 26a, and an arm 27 to demarkate a U-shaped groove 27a respectively. And the recessed 28 is formed under the part 26. The catcher parts 23 are for positioning the tape drawers on the inlet- side and the outlet-side in the three dimensional direction. As a result, the amount of adjusting by means of an adjusting jig 34 can be reduced, and automation is facilitated.

86. 发明专利

JPS61264541A TAPE TAKE-UP DEVICE 失效
公开(公告)号：JPS61264541A
公开(公告)日：1986-11-22
申请号：JP10374085
申请日：1985-05-17
申请人： HITACHI LTD
发明人： SHIBATA YOSHIHIRO , KATONO NOBORU
IPC分类号： G11B15/43
摘要： PURPOSE:To reduce the difference of tape tension due to a tape winding diameter by using a tape take-up driving source as a capstan driving source and using a viscous fluid in a slide clutch mechanism part and changing a transmission torque in accordance with the change of a relative rotative speed. CONSTITUTION:The first clutch device 14 is attached freely rotatably to a shaft 1a stood on a substrate 1, and a driving pulley 14a and a following-up gear 14b are pressed with a felt friction member 16 between them by a spring body 17 to transmit always a certain torque as shown by a solid line 22 independently of relative rotative speeds of the driving side and the following-up side. A viscous fluid 20 is packed in a closed space 19 formed with a driving gear 15a, a following-up gear 15b, and an oil seal 21 and transmits the torque by the viscous resistance, and the transmitted torque is changed therefore in accordance with the variance of relative rotative speeds of the driving side and the following-up side. Relations between them are shown by a solid line 23. Thus, an approximately constant tape tension is attained from the start of tape winding to the end if the value of a coefficient determined by the viscous fluid is selected properly.

87. 发明专利

JP2544345B2 失效
公开(公告)号：JP2544345B2
公开(公告)日：1996-10-16
申请号：JP8017186
申请日：1986-04-09
申请人： HITACHI LTD
发明人： HASHIGUCHI YASUHIRO , KATONO NOBORU , SHIBATA YOSHIHIRO
IPC分类号： G11B15/675

88. 发明专利

JPH08227547A ROTARY MAGNETIC HEAD DEVICE 失效
公开(公告)号：JPH08227547A
公开(公告)日：1996-09-03
申请号：JP3258495
申请日：1995-02-21
申请人： HITACHI LTD
发明人： ONO MASAHARU , MASUDA NORIAKI , TAKEDA HIDEKAZU , INOUE ATSUSHI , MASUOKA NOBUO , KATONO NOBORU
IPC分类号： B23B5/00 , G11B15/61
摘要： PURPOSE: To accurately form a tape traveling surface and a tape guiding stage by machining optical surfaces excluding the tape traveling surface and the tape guiding stage after forming the tape traveling surface and the tape guiding stage completely by one operation. CONSTITUTION: A tape winding surface mold 9 is made to be a smooth and highly accurate surface so as to form a tape traveling surface 5 and a tape guiding step 4 for regulating a magnetic tape by one mold and capable of having highly accurately formed circular angle and roundness of the tape traveling surface 5 and the linearity of the tape guiding step 4. Further, since a forming mold is drawn in a direction nearly perpendicular to the tape guiding step 4 and the tape traveling surface 5, a projection provided in the forming mold is formed without being brought into contact with a fixed drum 3.

89. 发明专利

JPH08171758A TAPE LOADING MECHANISM FOR MAGNETIC RECORDING AND/OR REPRODUCING DEVICE 失效
公开(公告)号：JPH08171758A
公开(公告)日：1996-07-02
申请号：JP22498395
申请日：1995-09-01
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： KATONO NOBORU , FUKUDA KOJI
IPC分类号： G11B15/665
摘要： PURPOSE: To thin and miniaturize a device without obstructing exchanging and repairing of a cylinder by specifying a positional height for placing a transmission member. CONSTITUTION: A transmission member for transmitting a driving force to a tape loading mechanism is constituted of a rack 1 and a pulling-out member 2, and is formed long and thin and shifted on the plane from cylinder fitting screws 30a, 30b and 30c between a capstan motor 12a and a cylinder 11 in the bottom side of a chassis 100 and set in the range of roughly the same height as the capstan motor 12a. Thus, cylinder exchanging is made easy without interference between the transmission member and other parts and by placing it in the cylinder screws 30a, 30b and 30c to be engaged with a driver and the device is made simple, thin and compact.

90. 发明专利

JPH08129802A BEARING DEVICE FOR MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH08129802A
公开(公告)日：1996-05-21
申请号：JP26535394
申请日：1994-10-28
申请人： HITACHI LTD
发明人： KATONO NOBORU , MARUYAMA AKIRA , MATSUOKA YOHEI
IPC分类号： G11B15/26
摘要： PURPOSE: To provide a bearing device for magnetic recording and reproducing device which possess a structure capable of making lubricating oil reside in a thrust bearing part for a long time and to obtain the bearing performance without using any dedicated member for the thrust bearing part. CONSTITUTION: The device possesses the thrust bearing part consisting of a rotary body 30 equipped with a bearing part end surface of smoothness and a bearing boss 14 equipped with an erected support shaft 15 for holding the rotary body 30 and a thrust receiving part of a smooth and flat surface, where the rotary body 30 is freely rotatably held in contact between the bearing part end surface of the rotary body 30 and the thrust receiving part 12 of the bearing boss 14. The thrust receiving part 12 of the bearing boss 14 with the erected supporting shaft 15 has a projecting part having an inner diameter larger than an outer diameter of the bearing part end surface of the rotary body 30, both with the supporting shaft 15 as the center, and a flat surface surrounded by the projecting part retains the lubricating oil.

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