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1. 发明专利

JP2004007965A STOPPER PLATE FOR DYNAMIC-PRESSURE BEARING 审中-公开
公开(公告)号：JP2004007965A
公开(公告)日：2004-01-08
申请号：JP2003097557
申请日：2003-04-01
申请人： HITACHI LTD
发明人： KAWAKAMI KAZUHIKO , KANAMARU NAONOBU
IPC分类号： F16C17/08 , H02K5/167 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a bearing structure of less power consumption where a gap in the thrust direction is precisely set. SOLUTION: A spindle motor has a hub shaft concentrically in overlapped manner disposed with the internal circumference of a stator core, and the shaft is born by a bearing holding means through a bearing metal. The lower end of the shaft has a curved surface, and is born by a pivot bearing part of an arm-like thrust reception fitted to the bearing holding means. The arm-like thrust reception is fitted to a stepped part of the bearing holding means through a stopper plate. The internal circumference end of the stopper plate is opposed to the groove formed at the shaft. COPYRIGHT: (C)2004,JPO

2. 发明专利

JPH11102569A DISK PLACING HUB OF SPINDLE MOTOR 失效
公开(公告)号：JPH11102569A
公开(公告)日：1999-04-13
申请号：JP26324897
申请日：1997-09-29
申请人： HITACHI LTD
发明人： KAWAKAMI KAZUHIKO , KANAMARU NAONOBU
IPC分类号： G11B19/20
摘要： PROBLEM TO BE SOLVED: To unnecessitate an adhesive, facilitate automation of a coupling process and shorten the process time, by plastically deforming a soft metal to bite a groove of a hub, thereby coupling a magnet. SOLUTION: A rotor magnet 5 is inserted in an inner diametrical part of the hub 1. A ring 6 which is a ring member obtained by rounding a wire of a soft metal such as aluminum, copper, etc., having nearly the same outer diameter as the rotor magnet 5 and a circular section is arranged at one face of the hub 1 where the rotor magnet 5 is mounted. The ring 6 is crushed and plastically deformed in the whole circumference with the use of a jig to bite a groove between a lower part of the rotor magnet 5 and the hub 1, so that an end face of the rotor magnet 5 is provided with a slip-off prevention in the whole circumference. The used jig is one that receives an inner diameter of the ring 6 to facilitate the bite of the ring to the groove when the ring 6 is crushed.

3. 发明专利

JPH1073074A AXIAL PISTON PUMP 失效
公开(公告)号：JPH1073074A
公开(公告)日：1998-03-17
申请号：JP25026197
申请日：1997-09-16
申请人： HITACHI LTD
发明人： KANAMARU NAONOBU
IPC分类号： F04B1/22 , F16D3/08
摘要： PROBLEM TO BE SOLVED: To aim at reduction of mechanical vibration and rotational noise of an axial piston pump by providing more than 3 pieces of drive pin that are arranged at intervals on the inner diameter side from the shaft of a piston device around a drive shaft acting as rotational center, on a cylinder barrel, and by supporting one-side ends of these drive pins after making them pass through a ball bearing. SOLUTION: The attaching hole 1a of a guide pin 2 is provided in the central part on one-side surface of a driving member 1 connected to a motor, etc., and on a concentric circle of this attaching hole 1a, 4 attaching holes 1b extending, at same intervals, in parallel to the attaching hole 1a are provided and respective drive pins 3 are fixed therein by pressure fitting. On the other hand, on a driven member 4 arranged opposite to the driving member 1, a guide pin arranging hole 4a and a driving pin arranging hole 4b are provided and the guide pin arranging hole 4a is formed in a concave surface of such a size on which the spherical head 2a of the guide pin 2 can make turning motion freely. The driving pin arranging hole 4b consists of a cylindrical hole 4b1 for receiving inserted bearing 5 and a driving pin releasing hole 4b2 and the bearings 5 are sliding freely attached to the tip end parts of driving pins 3.

4. 发明专利

JPH1066286A AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JPH1066286A
公开(公告)日：1998-03-06
申请号：JP21447396
申请日：1996-08-14
申请人： HITACHI LTD
发明人： KANAZAWA HIROYUKI , TAWARA KAZUO , HONDA YOSHIAKI , TATSUMI SHIGEO , TAKANO MASAMI , KANAMARU NAONOBU , YOKOYAMA MIZUHO
IPC分类号： H02K19/22 , H02K1/27 , H02K21/04 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide an AC generator for vehicle with a good productivity. SOLUTION: A rotor 2 has a pair of claw magnetic poles 3A and 3B which are located face to face and a field winding 4 which is wound inside the claw magnetic poles 3A and 3B and which generates magnetizing force in the claw magnetic poles 3. A stator 7 is so located as to face the rotor 2. The claw magnetic poles 3 have uneven section 18 formed on their side faces and a permanent magnet 5 covered with a protective cover 6 is press-fit and fixed between the facing claw magnetic poles 3A and 3B.

5. 发明专利

JPH09303649A MOUTHPIECE AND BRAKE HOSE 失效
公开(公告)号：JPH09303649A
公开(公告)日：1997-11-28
申请号：JP31091596
申请日：1996-11-21
申请人： HITACHI CABLE , HITACHI LTD
发明人： OUCHI KOJI , MAENO TOKUKI , NAMEKAWA YOSHIHIRO , HAGIWARA HIDEKI , AOYANAGI KATSUHIRO , KANAMARU NAONOBU
IPC分类号： F16L33/20 , B21K1/16 , F16L11/06 , F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To simplify manufacturing steps so as to realize a trend of low cost by integratedly forming a pipe shaped nipple part, a pipe shaped socket part, and a head part for connecting the nipple part and the socket part to each other in one end of the same material, and forming the nipple part by a plastic work. SOLUTION: A hole mouthpiece 1 is provided with a nipple part 2, a socket part 3 provided on the outer peripheral part of the nipple part 2, and a head part 4 for connecting the nipple part 2 and the socket part 3 to each other in one end, and integratedly formed of the same material. A step collar part 6 is formed on the boundary position of the socket part 3 and the head part 4, a space 9 opened to one end is formed on the inner side of the diameter direction of the head part 4, and a female screw part 5 is formed along the outer rim of the space 9. The hose mouthpiece 1 is manufactured by such a way that a projection part 18 and an intermediate molding 15 formed by integrating the socket part 3 and the base part 16 are formed by plastic work. After that the projection part 18 is plastically worked so as to form the nipple part 2.

6. 发明专利

JPH07266087A ROTARY SLANT SYSTEM PRESS 失效
公开(公告)号：JPH07266087A
公开(公告)日：1995-10-17
申请号：JP6056394
申请日：1994-03-30
申请人： HITACHI LTD
发明人： KANAMARU NAONOBU
IPC分类号： B30B3/00 , B21J9/18 , B30B1/26
摘要： PURPOSE:To obtain a rotary slant system press low in mechanical vibration and rotary noise by positioning a line connecting centers between ball bearings at a specified position in an inclined angle between an axial line of a driving shaft and the axial line of a swinging plate. CONSTITUTION:A driving shaft 10 is passed through a swinging plate 17. A slider 21 is held to be freely movable by the swinging plate 17 to generate a pressing pressure. Plural swinging plate rotation stopping pins 22 are passed through the swinging plate 17, arranged in parallel to the driving shaft on its concentric circles, and one side end is fixed onto a slider guide 4. The ball bearings 22a are respectively held to be freely slidable on the other ends of the rotation stopping pins 22 and engaged to the penetrating hole of the swinging plate 17. Then, the line connecting the centers between the ball bearings 22a is positioned at the position being 1/2 of the inclined angle between the axial line of the driving shaft 10 and the axial line of the swinging plate 17. Therefore, the constant velocity property of the joint part can be surely ensured.

7. 发明专利

JPH0566220B2 失效
公开(公告)号：JPH0566220B2
公开(公告)日：1993-09-21
申请号：JP18068787
申请日：1987-07-20
申请人： HITACHI LTD , MH CENTER LTD
发明人： KANAMARU NAONOBU , AOYAMA SUSUMU , KOIKE TSUTOMU
IPC分类号： B21K1/30 , B21J5/06

8. 发明专利

JPH05115313A CONNECTION METHOD BETWEEN SLIDER WITH COVER FOR SLIDE FASTENER AND COVER THEREON 失效
公开(公告)号：JPH05115313A
公开(公告)日：1993-05-14
申请号：JP30699891
申请日：1991-10-25
申请人： YOSHIDA KOGYO KK , HITACHI LTD
发明人： KEYAKI KEIICHI , ICHIKAWA NOBUHIRO , KANAMARU NAONOBU
IPC分类号： A44B19/26
摘要： PURPOSE:To achieve a better figure of appearance and moreover a firm connection with a simple operation when a cover of a spider with the cover is mounted on a strut part of a slider shell. CONSTITUTION:A retaining groove 16 is provided on a contact surface opposed to a strut part 10 of a cover 5 and the strut part 10 is covered with the cover 5 while being pressurized in the direction of covering deeper. By a fluidizing action with a plastic deformation, a part of the strut part 10 is engaged with a protrusion 17 formed by the strut part 10 in the retaining groove 16 of the cover 5 and the cover 5 is connected to the strut part 10.

9. 发明专利

JPH03246363A FUEL INJECTION VALVE DEVICE AND ITS MANUFACTURE 失效
公开(公告)号：JPH03246363A
公开(公告)日：1991-11-01
申请号：JP4103690
申请日：1990-02-23
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： YOKOYAMA MIZUHO , KANAMARU NAONOBU , OKAMOTO YOSHIO , KUROBA TSUNEMITSU , KOSHIZAKA ATSUSHI , SHINOZAKI HIRONORI
IPC分类号： F02M51/06 , F02M51/08 , F02M61/16 , F02M61/18
摘要： PURPOSE:To promote fine-graining of fuel and to improve the ignition efficiency of the fuel by injecting the fuel from a fuel injection port via a fuel revolving element through a branching means, and composing the branching means to make the outlet injection port smaller than the bore of the inlet injection port side. CONSTITUTION:In an electromagnetic fuel injection valve 1, a magnetic circuit is composed passing through a magnetic core 3, a yoke 4, and a plunger 5, when a pulse-form current is applied to an electromagnetic coil 2, and by attracting the plunger 5 to the core 3 side, a ball valve 6 is separated from a valve seat surface 9, and thereby the fuel is injected from a fuel injection port 8. In this case, the fuel is given a revolving force by a fuel revolving element 13, and branched by an adapter 16 to be the branching means provided at the downstream side of the valve seat surface 9. And in this case, the adapter 16 is formed by providing a fuel passage hole 16a whose bore is larger than the fuel injection port 8 at the inlet side, a small bore of fuel passage hole 16b at the outlet side, and two large bore fuel passages 17 lined up parallel to the passage hole 16a and at the equal interval.

10. 发明专利

JPH03103620A POWER TRANSMITTING JOINT 失效
公开(公告)号：JPH03103620A
公开(公告)日：1991-04-30
申请号：JP24003289
申请日：1989-09-18
申请人： HITACHI LTD , HITACHI POWDERED METALS
发明人： KANAMARU NAONOBU , ASAHI NAOTATSU
IPC分类号： F16D3/48
摘要： PURPOSE:To transmit a stable uniform rotation even if a shaft is eccentric and transmit a large torque by providing a guide pin with both ends spherical, at the center of an intermediate plate between an input shaft and an output shaft, and by providing driving pins with both end spherical bearings in parallel on both sides of the guide pin. CONSTITUTION:A pair of spherical holes 11, 21 are formed at the center of one directional face of an input shaft 1 and an output shaft 2, a pair of bearing grooves 12, 22 are formed respectively on both sides of the holes at equal distances, and an arc face is formed on the groove toward the center of the shaft. A guide pin 4 forming a spherical face with both ends held by the spherical holes 11, 12 is provided at the center of an intermediate disc 3, and driving pins 5, 51 are provided in parallel to it. Spherical bearings 6 are provided freely slidably on both ends of the driving pin to be received into the bearing grooves. Eccentricity and tilting of the input shaft 1 and the output shaft 2 are absorbed by movement of the spherical bearings so that with natural transmission of a large torque a uniform rotation can be transmitted.

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