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41. 发明专利

JPS5855730A METHOD AND DEVICE FOR DETECTION OF TORQUE 失效
公开(公告)号：JPS5855730A
公开(公告)日：1983-04-02
申请号：JP15364281
申请日：1981-09-30
申请人： HITACHI LTD
发明人： HASEGAWA AKIRA , SHIBATA TAKANORI
IPC分类号： G01L3/08 , G01L3/12
摘要： PURPOSE:To detect torque with high accuracy without receiving the influence of noises by providing passages for light to a rotating shaft, making light pulses incident from one end of the light passages, detecting the exit light from the other end, and calculating torsional angles (torque) from the difference in time between the signals of the input and exit light. CONSTITUTION:A main optical path 10 and an incident light path 13 consisting of optical fibers are provided in a hole 16 provided in the central part of a power transmission shaft 5, and further photodetecting paths 11, 12 are provided. The pulse light of a period T2 from a light source 6 enters the path 13 and is partly reflected by a semitransparent mirror 14. This reflected light is made incident through the path 11 to a phototransistor (PT)7. The rest is made incident via the path 10, a total reflection mirror 15, and the path 12 to PT8. The torsional angle theta of the shaft 5 is determined by theta=2piT/T2 from the time interval T and period T2 of the phase difference pulses of the output signals of the PTs 7 and 8. Thus the torque is determined with high accuracy without receiving the influence of noises.

42. 发明专利

JPS5740197A Oil supply device for vertical shaft guide bearing 失效
标题翻译：用于垂直轴导向轴承的供油装置
公开(公告)号：JPS5740197A
公开(公告)日：1982-03-05
申请号：JP11599080
申请日：1980-08-25
申请人： Hitachi Ltd
发明人： TOMIOKA SHIYUNZOU , OKANO KINPEI , MATSUO YOSHINORI , HASEGAWA AKIRA , KITAMURA AKIRA
IPC分类号： F16C37/00 , F16N7/28 , F16N7/36
摘要： PURPOSE: To prevent drop of oil level in the neighborhood of the guide bearing of oil supply device for a vertical type large high-speed motor etc. by providing two or more ring-shaped disc between the guide bearing and a thrust plate with a sleeve and an appropriate gap, protruding in the radial direction from the thrust plate.
CONSTITUTION: Ring-shaped discs 6 are arranged in steps axially and fixed to a bearing housing 42. The sinking oil level in the neighborhood of a boss 55 caused by discharge oil following rotation of a thrust plate 12 is restituted by feedback of the oil following discharge through a cooling device 8, gap between the upper ring- shaped disc 6 and lower ring-shaped disc, and gap of sleeve 11. The oil between the guide bearing 5 and upper ring-shaped disc 6 is not influenced by the drop of oil level following rotation of the thrust plate 12, so that the oil level is prevented from sinking and scrape-up refill of oil with the boss 55 can be made smoothly.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了防止垂直式大型高速电机等供油装置的导向轴承附近的油位下降，通过在导向轴承和推力板之间设置两个或多个环形圆盘，并带有套筒以及从推力板沿径向突出的适当间隙。构成：环形盘6轴向地布置并且固定到轴承壳体42.由止推板12旋转之后由排出油引起的凸台55附近的沉降油位由后续的油的反馈恢复通过冷却装置8排出，上环形盘6和下环形盘之间的间隙以及套筒11的间隙。导向轴承5和上环形盘6之间的油不受下降的影响在止推板12旋转之后的油位，防止油位下沉，并且可以顺利地使凸起部55刮擦再次装入油。

43. 发明专利

JPS56160234A LIGHT FIBER INTENSIVE TYPE WIRING DEVICE 失效
公开(公告)号：JPS56160234A
公开(公告)日：1981-12-09
申请号：JP6219880
申请日：1980-05-13
申请人： HITACHI LTD
发明人： HASEGAWA AKIRA , SHIBATA TAKANORI
IPC分类号： B60R16/02 , G02B6/00
摘要： PURPOSE:To offer an intensive wiring device with stable performance by making divergences of the light signal from the central control part to the end control parts approx. equal to one another. CONSTITUTION:Light signal in/out terminal of the central control part 1 is connected to an end of the light fiber cable 4a, whose other end is connected to a divergence connector 3a to lead the light conduit divergently for ends of cables 4b, 4c. The other end of the cable 4b is connected to a connector 3b to lead the light conduit divergently for cables 4d, 4e, where the cable 4d diverges to cables 4f, 4g through a connector 3c and they are led to the light signal in/out terminal of end control parts 2a, 2c. Accordingly the number of divergences from the central control part 1 to each and control part 2a, 2b... will become (n). The light signal energy transmitted from the central control part 1 to each end control part 2a, 2b... will, thus, become uniformly 1/2 by designing so that the divergence connectors 3a, 3b... divide the light signal energy equally.

44. 发明专利

JPS5579651A VENTILATING DEVICE OF VERTICAL TYPE ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5579651A
公开(公告)日：1980-06-16
申请号：JP15310478
申请日：1978-12-13
申请人： HITACHI LTD
发明人： WATANABE MITSUO , HASEGAWA AKIRA
IPC分类号： H02K9/26 , H02K5/20 , H02K9/02
摘要： PURPOSE:To miniaturize and lighten the device by decreasing weight while facilitating manufacture and installation, by vertically mounting a plurality of shielding plates, whose length differs, to a lower surface of a lower main plate of an intake port of the ventilating device. CONSTITUTION:Two shielding plates 21, 22 are vertically installed to a lower surface of a lower main plate 9 in a ventilation flue 15 formed by means of a flange 12 and a cover 14 disposed to a lower portion of a motor, the outside shielding plate 21 is shorter than the inside plate 22 and is mounted at the outer circumferential side of a ventilating port 11 installed to the lower main plate 9, and the inside shielding plate 22 is disposed near a center portion of the ventilating port 11. Both the two shielding plates 21, 22 are cylindrical, are made up in length in the axial direction that fixed clearances are each built up among the plates and the flange 12, and are made up so that longitudinal and positional relationship be formed which waterdrops and foreign matters each do not enter from the outside of this rotary electric machine. Thus, its weight can be reduced, the whole device can be miniaturized and lightened, and production and installation threrof can be facilitated.

45. 发明专利

JPS5457216A PIPING DEVICE CONNECTING THROUGH WALL 失效
公开(公告)号：JPS5457216A
公开(公告)日：1979-05-08
申请号：JP12243877
申请日：1977-10-14
申请人： HITACHI LTD
发明人： HASEGAWA AKIRA
IPC分类号： F16L5/02 , B65D90/00
摘要： PURPOSE:To prevent corrosion of a fluid flow hole by setting an unloadable protective pipe to the inside periphery of a fluid flow hole in a wall. CONSTITUTION:A corrosion-resist pipe 5 to be set to the inside periphery of a fluid flow hole 1H is as long as the fluid flow hole 1H and has a flange 5H on one end for fixing. A cooling pipe 2 is bolted to an oil tank 1 through the flange 5H, a fixture seat 1A and a flange 2H, each with packings P attached, and a pipe 3 for outer piping is set to the end of the pipe 5 through a packing P to be fixed to the oil tank 1.

46. 发明专利

JPS52133421A CHOKE VALVE AUTOMATIC RETURNING SYSTEM 失效
公开(公告)号：JPS52133421A
公开(公告)日：1977-11-08
申请号：JP4997576
申请日：1976-05-04
申请人： HITACHI LTD
发明人： HASEGAWA AKIRA , TANIGAMI TAKAHIKO , ABE OSAMU
IPC分类号： F02M1/14 , F02M1/08
摘要： PURPOSE:Concurrently with providing a servo part to swivel a choke lever in the open direction in response to the air intake negative pressure, along with the time lapse after starting the engine, a choke valve is automatically and gradually returned.

47. 发明专利

JPS5255130A TROUBLE DETECTING CIRCUIT FOR AIR BAG MEANS 失效
公开(公告)号：JPS5255130A
公开(公告)日：1977-05-06
申请号：JP13050075
申请日：1975-10-31
申请人： NISSAN MOTOR , HITACHI LTD
发明人： NISHIOKA TETSUSHI , HASEGAWA AKIRA
IPC分类号： B60R21/16 , B60Q11/00 , B60R21/01 , G08B21/00
摘要： PURPOSE:To provide a trouble detecting circuit for air bag means, in which air bag activating circuit operated upon collision of vehicle is changed partly such that variation in the power source voltage does not cause mal-functioning of the trouble detecting, alarming circuit.

48. 发明专利

JPS5250505A SLIDE BASE 失效
公开(公告)号：JPS5250505A
公开(公告)日：1977-04-22
申请号：JP12529175
申请日：1975-10-20
申请人： HITACHI LTD
发明人： MIYAUCHI TERUMITSU , NAKANIWA KUNIO , SUZUKI HIDEO , HASEGAWA AKIRA , KITAMURA AKIRA , KASAI MASAJI
IPC分类号： H02K5/00
摘要： PURPOSE:Installation simply made adjustable by such that movement on the supporting base can be made by the rotation of pinion by an engagement of the pinion installed to the bottom of the base and the rack formed on the top of the supporting base.

49. 发明专利

JPS5233007A NOISE PROOFING DEVICE OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5233007A
公开(公告)日：1977-03-12
申请号：JP10894175
申请日：1975-09-10
申请人： HITACHI LTD
发明人： SUZUKI HIDEO , WATABIKI MASAYUKI , NAKANIWA KUNIO , HASEGAWA AKIRA , KITAMURA AKIRA , MIYAUCHI TERUMITSU , KASAI MASAJI
IPC分类号： H02K9/26 , H02K5/20 , H02K5/24
摘要： PURPOSE:A standard rotary electric machine is used as it is to improve the noise proofing effect with better economy.

50. 发明专利

JPS524278A COLLISION VELOCITY DETECTOR 失效
公开(公告)号：JPS524278A
公开(公告)日：1977-01-13
申请号：JP8001775
申请日：1975-06-30
申请人： HITACHI LTD , NISSAN MOTOR
发明人： USHIKU KENICHI , HASEGAWA AKIRA , TANIGAMI TAKAHIKO
IPC分类号： G01P15/135 , G01P15/02 , H01H35/14
摘要： PURPOSE:To make the contact-closing time long and obtain satisfactory contact-closing time characteristics by providing a spherical mass which so works as to close the contact at the time of vehicle's collision.

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