专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH01315057A TAPE DRIVING MECHANISM 失效
公开(公告)号：JPH01315057A
公开(公告)日：1989-12-20
申请号：JP14755888
申请日：1988-06-15
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： MITSUYASU TAMOTSU , KATO TAIICHIRO , YANAGISAWA HITOSHI , HASHIZUME TSUNEHARU , MIYASHITA MITSUTAKA , OKINA TOSHIHIKO
IPC分类号： G11B15/60
摘要： PURPOSE:To attain the stable drive of a tape and to prevent the damage of the tape edge part by tilting a post via an actuator with the detecting output of a sensor which detects the up-down movements of the tape and controlling the up-down positions of the tape. CONSTITUTION:A tape 3 rubs the outer circumferential surface of a post 1. A piezoelectric element 2 warps when it receives the DC voltage. As a result, the post 1 fixed at a single end part 2a is tilted. In case the tape 3 moves up and down from its prescribed reference position, a sensor detects the shift extent of the tape 3. Then the element 2 is curved in response to the detecting output of the sensor. Thus the post 1 is tilted in an optional direction at an optional angle. Then the tape 3 is moved up and down and the up-down position of the tape 3 is controlled.

2. 发明专利

JPH0393021A HERICAL SCAN TYPE MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH0393021A
公开(公告)日：1991-04-18
申请号：JP22928789
申请日：1989-09-06
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： YANAGISAWA HITOSHI , SEKIGUCHI TAKUJI , OKINA TOSHIHIKO , HASHIZUME TSUNEHARU
IPC分类号： G11B5/53
摘要： PURPOSE:To set the contact state of a magnetic tape and a magnetic head to be satisfactory by fitting the magnetic head by means of inclining it from a plane intersecting orthogonally with the rotary axis of a rotary drum to a fixed drum-side. CONSTITUTION:The magnetic head 10 is provided with a head chip 3, a head base 5 and a spacer 6. The chip 3 is provided so that it inclines to the fixed drum-side by a prescribed angle theta against the plane B intersecting orthogonally with the rotary axis A by fitting the base 5 on the bottom 11 intersecting orthogonally with the rotary axis A of the rotary drum 1 in the head 10. The magnetic tape 4 travels on the drum surface 9 of the drums 1 and 2 while it is wound to the drums 1 and 2. Thus, the chip 3 obliquely scans on the tape 4 at high speed by allowing the chip 3 fixed to the drum 1 to rotate at high speed together with the drum 1.

3. 发明专利

JPH02306416A HELICAL SCAN TYPE ROTARY HEAD DRUM UNIT 失效
公开(公告)号：JPH02306416A
公开(公告)日：1990-12-19
申请号：JP12666689
申请日：1989-05-22
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： KATO TAIICHIRO , YANAGISAWA HITOSHI , SEKIGUCHI TAKUJI , OKINA TOSHIHIKO , KOBAYASHI KAZUO
IPC分类号： G11B5/55 , G11B5/588 , G11B15/60 , G11B15/61
摘要： PURPOSE:To attain the stable and sure running of a tape by detecting the tape variance with a tape position detecting sensor set along a virtual lead and driving a dynamic tracking actuator to move a head in its axial direction for correction of the deviation value caused against the virtual lead. CONSTITUTION:Plural position sensors 3 are set along a virtual lead 2 which presumes a reference running position for one of two edges of a tape 4 on the rotary drums 1 and 6. The sensors 3 detects the deviation value of the running tape 4 against the lead 2. Based on this detection signal, a dynamic tracking actuator is driven to move both heads 1 and 6 toward their axial directions. Thus the driving positions of the heads 1 and 6 are corrected and scanned. As a result, the deflection equal to the deviation value of the tape 4 measured on the heads 1 and 6 is given to both heads 1 and 6 respectively. Then the heads 1 and 6 are positioned at each prescribed position. In other words, a state equal to that where the tape 4 runs along the lead 2 is secured. Thus the tape 4 can run stably with no impairment.

4. 发明专利

JPH01271957A TAPE TRAVELING MECHANISM 失效
公开(公告)号：JPH01271957A
公开(公告)日：1989-10-31
申请号：JP9915488
申请日：1988-04-21
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： KATO TAIICHIRO , YANAGISAWA HITOSHI , ABE KAZUO , MITSUYASU TAMOTSU , SEKIGUCHI TAKUJI , HASHIZUME TSUNEHARU , OKINA TOSHIHIKO , MIYASHITA MITSUKI
IPC分类号： G11B15/60
摘要： PURPOSE:To travel a tape surely and stably by detecting an error from the reference height position of the tape by a sensor and adsorbing the tape onto a post without a regulating edge and correcting activity the up-and-down position of the tape by an actuator. CONSTITUTION:There are diaphragms 2 connected to a tube 5 on a post to guide a traveling tape 7, air is sucked and the tape 7 is adsorbed onto the post 1 by negative pressure. Photosensors 8 are set on the side of the post, the tape 7 detects the up-and-down (tape width direction) fluctuation quantity from the reference height position, feeds it back to a voice coil 4 and both the post 1 and the adsorbed tape 7 are driven to their regular positions by a voice coil motor composed of a coil 4 and a magnet 6. Thus, the up-and-dowm fluctuation can be corrected without damaging the edges of the tape 7 and the action of a traveling system can be surely stabilized.

5. 发明专利

JPH0397149A TAPE GUIDE DEVICE 失效
公开(公告)号：JPH0397149A
公开(公告)日：1991-04-23
申请号：JP23304489
申请日：1989-09-11
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： KATO TAIICHIRO , SEKIGUCHI TAKUJI , YANAGISAWA HITOSHI , SAKAMOTO MANABU , OKINA TOSHIHIKO
IPC分类号： G11B15/61 , G11B15/60
摘要： PURPOSE:To regulate the position of a tape in the width direction by driving a tape guide post without directly regulating the tape mechanically and to stably and surely feed a thin type tape by moving the tape guide post by driving an actuator in a direction intersecting orthogonally to the moving direction of the tape. CONSTITUTION:When the tape is moved from a prescribed position i.e. a feed position as reference to a tape with direction, the fact is detected with a sensor 9, and the post 1 is moved in the width direction of the tape 8 by driving the actuator 10 corresponding to a detection signal. Since no slippage occurs between a feeding tape 8 and the tape guide post 1 rotated with the motion of the tape 8, the tape 8 follows the motion of the tape guide post 1 in the tape width direction. In other words, since the tape 8 is moved in the axial direction of the tape guide post 1, namely, the width direction of the tape 8 with the tape guide post 1, the tape 8 is also moved in the width direction, thereby, the position of the tape 8 in the width direction is corrected. Thereby, it is possible to keep the position of the tape in the width direction constant without regulating a tape edge mechanically and to stably feed the thin type tape without impairing.

6. 发明专利

JPH0373456A TAPE GUIDE POST 失效
公开(公告)号：JPH0373456A
公开(公告)日：1991-03-28
申请号：JP20961989
申请日：1989-08-15
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： KATO TAIICHIRO , YANAGISAWA HITOSHI , SEKIGUCHI TAKUJI , OKINA TOSHIHIKO , SAKAMOTO MANABU
IPC分类号： G11B15/60
摘要： PURPOSE:To stably travel a tape having a thin thickness without damage by forming a recessed part consisting of a hyperbolid of revolution having small radii of the subject guide post in a center position in the tape transverse direction without having a flange for regulating a tape edge. CONSTITUTION:The tape guide post is larger than the width of a tape 2 to be used, and is formed in a shape symmetrical to the center line having a large recessed curvature, e.g. an hourglass-shape consisting of the hyperbolid of revolution in such a manner that the radius in the center position (bottom part) 1b in the tape transverse direction is smaller than a radius of the end part 1a to 100-200 mum. Consequently, the tape 2 traveling on the guide post 1 is apt to move continuously toward the bottom part 1b having a small diameter in the recessed part on the guide post 1 in its axial direction. By this method, the positional fluctuation of the tape in the transverse direction on a tape path can be suppressed, and even when a thin type tape is used, the stable and secure traveling is attained without damaging the tape edges.

7. 发明专利

JPH0373455A TAPE GUIDE POST 失效
公开(公告)号：JPH0373455A
公开(公告)日：1991-03-28
申请号：JP20961889
申请日：1989-08-15
申请人： JAPAN BROADCASTING CORP , SANKYO SEIKI SEISAKUSHO KK
发明人： KATO TAIICHIRO , YANAGISAWA HITOSHI , SEKIGUCHI TAKUJI , OKINA TOSHIHIKO , SAKAMOTO MANABU
IPC分类号： G11B15/60
摘要： PURPOSE:To stably travel a tape having a thin thickness without damage by shaping the subject guide post convexly in a center position in the tape transverse direction without having a flange for regulating a tape edge. CONSTITUTION:The tape guide post is larger than the width of a tape 2 to be used, and is formed in symmetrical to the center line having a large protruded curvature, e.g. a barrel shape convexly in such a manner that the radius in the center position (crown part) 1b in the tape transverse direction is larger than a radius of the end part 1a to an extent of 100-200 mum. Consequently, when the tape 2 having a fluctuation in the transverse direction of 100-200 mum is entered at the tape guide post, the tape 2 is apt to move toward the larger diameter. By this method, the positional fluctuation of the tape in the transverse direction on a tape path can be suppressed, and even when a thin type tape is used, the stable and secure traveling is feasible without damaging the tape edges.

8. 发明专利

JPH1070340A OPTICAL SCANNING DEVICE 失效
公开(公告)号：JPH1070340A
公开(公告)日：1998-03-10
申请号：JP22400096
申请日：1996-08-26
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： OKINA TOSHIHIKO
IPC分类号： B41J2/44 , G02B7/00 , G11B7/135 , H01S5/00 , H01S3/18
摘要： PROBLEM TO BE SOLVED: To enable angle adjustment of an optical axis. SOLUTION: The device has a laser diode 1, a collimator lens 2 which polarizes laser light emitted from the laser diode 1 to parallel beams, a mirror barrel 3 holding the collimator lens 2, a collimator holder 4 holding the mirror barrel 3 and a chassis 5 whereto the collimator holder 4 is fixed. The collimator holder 4 is fixed to the chassis 5 through an adjustment means 8 which can adjust the irradiation direction of parallel beams. It is desirable that the adjustment means 8 is formed of an elastic material.

9. 发明专利

JP2001160228A OPTICAL PICKUP DEVICE AND METHOD FOR MANUFACTURING THE SAME 失效
公开(公告)号：JP2001160228A
公开(公告)日：2001-06-12
申请号：JP34295699
申请日：1999-12-02
申请人： SANKYO SEIKI SEISAKUSHO KK , TOSHIBA CORP
发明人： YANAGISAWA KATSUSHIGE , HOTTA TORU , KASUGA IKUO , OKINA TOSHIHIKO , KINOSHITA AKIRA , SAI HIDENORI
IPC分类号： G11B7/00 , G11B7/12 , G11B7/125 , G11B7/127 , G11B7/22
摘要： PROBLEM TO BE SOLVED: To prevent respective light sources of an optical pickup device having the plural light sources from falling to an overheating state. SOLUTION: The optical pickup device 1 has a laser diode 2 for recording having a calorific value as a stationary side light source mounted at a mounting section 5 of its device frame 4 and a laser diode 3 for reproducing as a regulation side light source held in a holder 6 fixed by an adhesive 7 by opening a spacing 46 on the flank 45 of the device frame. The heat generated by the laser diode 2 for recording is efficiently released via the device frame 4 and the heat generated by the laser diode 3 is also efficiently released via the holder 6 fixed by the adhesive 7 partially packed in the device frame 4 by opening the spacing 46.

10. 发明专利

JPH10142541A OPTICAL SCANNING DEVICE 失效
公开(公告)号：JPH10142541A
公开(公告)日：1998-05-29
申请号：JP29680496
申请日：1996-11-08
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： OKINA TOSHIHIKO
IPC分类号： B41J2/44 , G02B26/10
摘要： PROBLEM TO BE SOLVED: To provide a structure capable of preventing the generation of ghost on a photosensitive surface and the lowering of the life of a laser beam source in an optical scanning device for optimizing a light spot by using a diaphragm member. SOLUTION: In an optical scanning device, a diaphragm member 50 for adjusting the diameter and the shape of a spot is arranged between a laser beam source and a collimator lens and a slit-like aperture part 53 extended in the main scanning direction is formed on the diaphragm member 50. Since the diaphragm 50 and the end face on the entrance side are perpendicular to the optical axis L1 of a divergent laser beam from the laser beam source, when the divergent laser beam is interrupted on the periphery of the aperture part 53, since the interrupted light is reflected in the direction separated from the optical axis L1 of the divergent laser beam, it does not return to the collimator lens and a laser beam source 11. Consequently, ghost and the deterioration of the laser beam source 11 due to the light converged on the exit plane of the laser beam source 11 are prevented.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式