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1. 发明专利

JP2533512B2 失效
公开(公告)号：JP2533512B2
公开(公告)日：1996-09-11
申请号：JP1237287
申请日：1987-01-23
申请人： HITACHI LTD
发明人： YAMAGUCHI JUZO , TAKEUCHI YOSHINORI , TOKUYAMA MIKIO , SAITO SUKEO , DAITO HIROSHI , UMAGOE YUKIMORI , NAKAJIMA HIROYASU , KARAKAMA YOSHIAKI , HORI KAZUNORI
IPC分类号： G11B21/02 , G11B5/58 , G11B21/16 , G11B21/21

2. 发明专利

JPH04212764A MAGNETIC HEAD 失效
公开(公告)号：JPH04212764A
公开(公告)日：1992-08-04
申请号：JP4240391
申请日：1991-02-15
申请人： HITACHI LTD
发明人： SAKURAI HIROSHI , NISHINO KAZUHIRO , DAITO HIROSHI , OKAZAKI TOSHIHISA , TOKUYAMA MIKIO , YAMAGUCHI YUZO , TAKEUCHI YOSHINORI , KOJIMA YASUO , SAITO SUKEO , SETONE SHOICHI , MASUKAWA TETSUO
IPC分类号： G11B17/32 , G11B21/21
摘要： PURPOSE:To keep the difference of floating height of a head slider on a magnetic gap surface between when a magnetic head is positioned on the outer periphery of the action area of a magnetic disk and when it is positioned on the inner periphery thereof small. CONSTITUTION:The slider 2 having an inner peripheral side rail 9 and an outer peripheral side rail 10 where conversion elements(magnetic gap surface) 13 are formed, are attached to a supporting spring arm 3 through a gimbal 11, and load W is added to the slider at a supporting point(dimple) 12. By making the loaded position deviate(15) from the center of the slider, the change of the floating height based on the difference (theta1, theta2) of a YAW angle(caused in a rotary arm) and the difference of the flow velocity of air flow between the inner periphery and the outer periphery is compensated and kept small to the conversion element 13(this element is used for actual recording and reproducing) on the outer peripheral side rail 10. Since the element 13 on the rail 9 is not used for recording and reproducing, the difference of the floating height is not cared about.

3. 发明专利

JPH0359859A FLOATING HEAD SLIDER 失效
公开(公告)号：JPH0359859A
公开(公告)日：1991-03-14
申请号：JP19412089
申请日：1989-07-28
申请人： HITACHI LTD
发明人： MASUKAWA TETSUO , DAITO HIROSHI , KOJIMA YASUO , TAKEUCHI YOSHINORI
IPC分类号： G11B21/21
摘要： PURPOSE:To enlarge the rigidity and attenuation of an air film and to stabilize a head floating quantity by enlarging the width of a slider rail in an air flowout end compared to that in an air inflow end. CONSTITUTION:The width of the slider rail in the flowout end part of an air flow is made wider than a flat part 2 on the inflow end-side of the air flow. The depth of a groove part 4 where air pressure is not generated is set to be 20mum, for example. Since a flat part 3 has a function as a step bearing, the rigidity of the air film can be improved and the width of the slider rail in the flat part 3 is wider than that in the flat part 2, a squeeze effect in the part is generated and attenuation is enlarged. Thus, the rigidity and the attenuation of the air film can be enlarged not by changing the head floating quantity and a head pressing load but by changing the form of the head slider rail. Consequently, the head floating quantity can be stabilized.

4. 发明专利

JPH02312077A FLOATING HEAD SLIDER 失效
公开(公告)号：JPH02312077A
公开(公告)日：1990-12-27
申请号：JP13263089
申请日：1989-05-29
申请人： HITACHI LTD
发明人： TAKEUCHI YOSHINORI , YAMAGUCHI YUZO , MURANUSHI FUMITAKA , TANAKA KATSUYUKI , KAWAKAMI HIROJI , DAITO HIROSHI , MASUKAWA TETSUO
IPC分类号： G11B21/21 , G11B5/60
摘要： PURPOSE:To improve dynamic characteristics of flotation and mass-productivity by composing an air bearing rail of an inflow side part, an outflow side part, and a coupling part and making the overall width of the coupling part narrower than that of any other part. CONSTITUTION:The air bearing rail 3 form the outside border of a slider main body 1 linearly and has the inflow side part A, outflow side part B, and coupling part C. An intrusion part is formed in the coupling part C and its rail width W3 is narrower than the width W1 of the inflow side part A the width W2 of the outflow side part. Here, air flowing in the rail 3 moves from a slanting surface part 31 as a pressure raising means to a plane part 32 and is compressed abruptly to generate large pressure at the inflow side part A. Further, the air from the coupling part C and air exiting from the rail 3 is put together and compressed at the outflow side part W2 to generate large pressure. Here, when a breed part 5 is made shallow, flotation variance becomes small, the dynamic characteristics of the flotation are improved, and the mass-productivity can be improved with high accuracy.

5. 发明专利

JPH01189084A HEAD SUPPORTING MECHANISM 失效
公开(公告)号：JPH01189084A
公开(公告)日：1989-07-28
申请号：JP1070388
申请日：1988-01-22
申请人： HITACHI LTD
发明人： TAKEUCHI YOSHINORI , TANAKA KATSUYUKI , YAMAGUCHI YUZO , TOKUYAMA MIKIO , DAITO HIROSHI
IPC分类号： G11B21/21
摘要： PURPOSE:To prevent vibrational interference among head supporting bodies and to reduce floating variations by making the plural head supporting bodies for a guide arm to be jointed with an actuator different in shape or different in board thickness. CONSTITUTION:The head supporting bodies 8 and 9 are fitted before and behind on both upper and lower surfaces of the guide arm 7, totaling up to four. A slider 5 mounted with a magnetic head is fitted on each tip of the supporting bodies 8 and 9 and elastically supported by the supporting bodies 8 and 9 respectively. The arm 7 is jointed to the actuator by an actuator connecting part 10, so as to be positioned in an optional position between the magnetic disks. The supporting bodies 8 and 9 are different from each other in shape with regard to the length of their leaf spring parts as (a)>(b). By this method, mechanical vibration characteristics of each head supporting body are considered as >=two kinds, dispersing a frequency distribution, so that the vibrational interference among the head supporting bodies is prevented, thus reducing the floating variations.

6. 发明专利

JPS63201967A TRANSDUCER SUPPORTING DEVICE 失效
公开(公告)号：JPS63201967A
公开(公告)日：1988-08-22
申请号：JP3328987
申请日：1987-02-18
申请人： HITACHI LTD
发明人： YAMAGUCHI YUZO , MATSUBARA KENICHIRO , TAKEUCHI YOSHINORI , DAITO HIROSHI , SATO TAICHI , TARUKUDARU EE KEE EMU ARI AHAS
IPC分类号： G11B21/21
摘要： PURPOSE:To reduce an exciting force, which a load beam part is subjected to by a flow, and to suppress the fluctuation width of a floating quantity and a positioning error to be small by providing a protruding part, which extends in the longitudinal direction of supporting body, at the load beam part of the supporting body to support an air bearing slider. CONSTITUTION:The load beam part 6 has an upper stream side protrusion 14 at the vicinity of the upper stream side front edge of a flat plane part 11, and a down stream side protrusion 15 at the vicinity of a down stream side rear edge, and the protruding parts 14, 15 are formed by groove-shaped depressions, formed on the bottom surface 11, and extend continuously in the longitudinal direction of the load beam part 6. Accordingly, the turbulence of a back wash can be reduced, and the fluid exciting force from the back wash can be reduced, and further, the flow of the bottom surface can be stabilized, and moreover, the fluid exciting force from the back wash can be reduced while the back wash is reduced. Thus, the fluctuation of the floating quantity and the positioning error of the slider 3 can be suppressed to be small.

7. 发明专利

JPS63187476A TRANSDUCER SUPPORTING DEVICE 失效
公开(公告)号：JPS63187476A
公开(公告)日：1988-08-03
申请号：JP1843887
申请日：1987-01-30
申请人： HITACHI LTD
发明人： YAMAGUCHI YUZO , TAKEUCHI YOSHINORI , SAITO SUKEO , DAITO HIROSHI
IPC分类号： G11B21/21
摘要： PURPOSE:To decrease the possibility of contact between a slider and a storage medium by approaching the rigid structure supporting body bonding end of a flexible part to a plane formed with the floating face of the slider with respect to the slider mounting side end of the flexible part in a soft structure supporting body fitted with the slider so as to decrease the reduction in the quantity of floating of the slider at seeking. CONSTITUTION:The rigid structure supporting body 5 has an elastic part 6 and a loading beam part 7 and is tightened to a guiding arm 9 by a screw 10 by means of the coupling part 8 of the other end of the elastic part 6. The slider 3 has a floating face 11 to float the slider 3 by the bearing action of the air film formed between the turning storage medium 11 and the floating face 11 and a loading projection 12 is arranged between the slider fitting part of the soft structure supporting body 4 and the rigid structure supporting body 5. While the loading beam part 7 is kept in parallel with the plane formed by the floating face 11, the end of the access mechanism of the flexible finger part 15 is approached to the plane formed by the floating face from the end of the slider. Thus, the radial movement of the transducer 2 is minimized and the reduction in the slider floating quantity by the seeking is reduced simultaneously.

8. 发明专利

JPS6313180A MAGNETIC HEAD SLIDER 失效
公开(公告)号：JPS6313180A
公开(公告)日：1988-01-20
申请号：JP5004187
申请日：1987-03-06
申请人： HITACHI LTD
发明人： SUZUKI SHOJI , KAZAMA TOSHINORI , DAITO HIROSHI , TAKEUCHI YOSHINORI , YAMAGUCHI YUZO
IPC分类号： G11B23/50 , G11B5/60 , G11B21/21 , G11B33/14
摘要： PURPOSE:To improve the reliability and performance of the titled slider by forming a gas vent hole penetrated from a flat rail over the rear face of a floating face to the magnetic head slider. CONSTITUTION:Part of gas compressed by a flat rail 2 being a gas bearing generating section of the magnetic head slider 1 flows to the rear face of the slider from the gas bent hole 3 provided to the rail 2. Polluted particles 11 such as dust included in the gas are led to a position sufficiently parted from the bottom layer of layer-flow on the surface of a magnetic disk 15, then they are exhausted at the outside of the magnetic disk 15 while going with the stream of the gas in the direction of arrow B directed from the inner circumference of the disk 15 toward the outer ridge and generated attended with the rotation in the arrow A of the magnetic disk 15, and they are not sticked again on the surface of the magnetic disk 15 and the deposition and adhesion of the dust 11 onto the magnetic head slider 1 are prevented.

9. 发明专利

JPS62289981A HEAD SUPPORTING ARM 失效
公开(公告)号：JPS62289981A
公开(公告)日：1987-12-16
申请号：JP13181686
申请日：1986-06-09
申请人： HITACHI LTD
发明人： SATO TAICHI , TANAKA KIHACHIRO , ONODERA SHUJI , SAITO SUKEO , DAITO HIROSHI , MURATA YOKO , HARA SHIGEO , SETONE SHOICHI
IPC分类号： G11B21/21
摘要： PURPOSE:To improve the precision of head positioning by forming an elastic part on the fixed side of a head supporting arm into an arcuate shape which is so set that plural natural frequencies are separated from one another. CONSTITUTION:A spacer 5 is connected to one end of a cantilever-shaped head supporting arm 1 and is fixed to a guide arm 8 by a screw. An upward projecting arcuate elastic part 10 is formed on the spacer side, namely, the fixed side of the head supporting arm 1, and a rigid beam part 1a where flanges 4 are formed is provided in the part nearer to the head. A head slider 2 is held in the front end of the part 1a through a gimbals. The elastic part 10 of the head supporting arm 1 is formed into the arcuate shape to reduce the head oscillation in the supporting mechanism and the variance of oscillation characteristics, thus improving the precision of head positioning.

10. 发明专利

JPS62285285A MAGNETIC HEAD SUPPORTING MECHANISM 失效
公开(公告)号：JPS62285285A
公开(公告)日：1987-12-11
申请号：JP12793686
申请日：1986-06-04
申请人： HITACHI LTD
发明人： TOKUYAMA MIKIO , YAMAGUCHI YUZO , HIBINO YOZO , SONODA TARO , TAKEUCHI YOSHINORI , TAKAHASHI KUNIHIRO , NAKAJIMA HIROYASU , DAITO HIROSHI
IPC分类号： G11B21/21
摘要： PURPOSE:To stabilize bloating of a magnetic head and a recording/reproducing signal by adopting a streamline structure for the structure of cross section of a side ridge bent part of a beam part for load. CONSTITUTION:The beam for load 12 is formed as a long triangle, two side ridges are bent upward and the bent part 13 is formed to be streamline. Even if an air flow is given to the beam part 12 from the direction of arrow A while a magnetic recording medium is rotated, the air flow S flows toward the rear side without being separated from the beam 12 and a vortex (d) caused in this case is less. As a result, the static pressure at the upper/lower face of the beam part 12 is not much fluctuated and buoyancy F is stabilized.

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