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61. 发明专利

JP2001309503A CONTACT FORCE MEASURING METHOD AND CONTACT FORCE MEASURING APPARATUS OF PANTOGRAPH 失效
公开(公告)号：JP2001309503A
公开(公告)日：2001-11-02
申请号：JP2000122299
申请日：2000-04-24
申请人： RAILWAY TECHNICAL RES INST
发明人： IKEDA MITSURU , USUDA TAKAYUKI
IPC分类号： G01L5/00 , B60L5/18 , B60M1/28
摘要： PROBLEM TO BE SOLVED: To provide a contact force measuring method and a contact force measuring apparatus of a pantograph which can measure a front and rear direction contact force of a collector shoe of a pantograph. SOLUTION: When the front and rear direction contact force Ff is applied to the collector shoe 12 from a trolley wire 9, a torsion moment Mf is developed in the collector shoe 12, and torsion moments MA, MB are generated on sections A, B of the collector shoe 12. When rotation inertia of the collector shoe 12 in a section AB is In, the torsion moment Mf is expressed by Mf=(-MA+MB)+ In. When a distance from a figure center of the collector shoe 12 to the upper surface is v, the front and rear direction contact force Ff is expressed by Ff=(1/ v)Mf. The torsion moments MA, MB can be obtained by measuring the shearing stress with a strain gauge for two axes. The rotation inertia In can be obtained from measured results with an accelerometer and equivalent mass.

62. 发明专利

JPH07336802A SINGLE-ARM PANTOGRAPH 失效
公开(公告)号：JPH07336802A
公开(公告)日：1995-12-22
申请号：JP15284194
申请日：1994-06-10
申请人： RAILWAY TECHNICAL RES INST
发明人： MANABE KATSUSHI , MORIKAWA TAKEO , KUSUMI SHIYUNICHI , IKEDA MITSURU , AOKI MITSUHIRO
IPC分类号： B61D49/00 , B60L5/26
摘要： PURPOSE:To lower an aerodynamic noise during a running operation by reducing a member, which is exposed to an air current, in a main frame as a mechanism which follows a change in the height of a trolley wire. CONSTITUTION:In a single-arm pantograph, a parallel link 11 which constitutes a main frame for the single-arm pantograpgh is constituted in such a way that one arm (a main-frame main arm 4) out of two arms is formed to be of a hollow structure and that the other arm (a main-frame auxiliary arm 5) passes through it so as to constitute the parallel link 11. When the number of arms exposed to an air current is reduced to one, an aerodynamic noise generated during a running operation can be suppressed. Thereby, the number of members exposed to the air current can be reduced to one, and the mechanism of the parallel link constituted of the two arms can be realized.

63. 发明专利

JP2003156397A METHOD AND INSTRUMENT FOR MEASURING CONTACT FORCE OF PANTOGRAPH 审中-公开
公开(公告)号：JP2003156397A
公开(公告)日：2003-05-30
申请号：JP2001353015
申请日：2001-11-19
申请人： RAILWAY TECHNICAL RES INST
发明人： IKEDA MITSURU
IPC分类号： G01L5/00 , B60L5/26
摘要： PROBLEM TO BE SOLVED: To provide a method and instrument for measuring contact force of pantograph, with which the contact force of a pantograph can be measured with high accuracy by means of a fewer number of sensors. SOLUTION: In the method, predicted contact forces f1 ,..., fm , at m spots on a pantograph head 12 are found, based on the outputs a1 ,..., an of n pieces of sensors (accelerometers) 11, corresponding to the n-nary mode of vibration of the head 12. The number (m) of predicted contact force acting spots on the head 12 can be made larger than the number (n) of sensors 11 attached to the head 12 (m>=n). Consequently, the contact force of the pantograph can be measured with sufficiently high accuracy, because the predicted contact forces can be obtained at many positions on the pantograph head 12, even if the number of the used sensors 11 is small.

64. 发明专利

JPH07274304A SHOE SUPPORTING MECHANISM IN CURRENT COLLECTOR FOR ROLLING STOCK 失效
公开(公告)号：JPH07274304A
公开(公告)日：1995-10-20
申请号：JP8247194
申请日：1994-03-29
申请人： RAILWAY TECHNICAL RES INST
发明人： MANABE KATSUSHI , MORIKAWA TAKEO , KUSUMI SHIYUNICHI , IKEDA MITSURU , AOKI MITSUHIRO
IPC分类号： B60L5/08
摘要： PURPOSE:To provide a shoe supporting mechanism in a current collector for rolling stock in which a trolley wire is protected against undue stress by limiting the lift of a shoe within a predetermined range thereby restricting the contact force between the trolley wire and a slider. CONSTITUTION:The shoe supporting mechanism comprises a shoe 1 having elliptical or wing-like cross-section, a slider 2, a push-up unit 3, a supporting spring 4, and a clash pot. An aerodynamic stabilizer plate 10 is fixed in the rear of the shoe 1 and a trolley wire contact point 9 is set in the rear of the rotary shaft 7 of the shoe 1. Furthermore, the aerodynamic center of the shoe 1 is located in the rear of the trolley wire contact point 9 thus restraining lift induced in the shoe 1. This structure protect the trolley wire 6 against undue stress caused by the increased contact force between the trolley 6 wire and the slider 2.

65. 发明专利

JPH07163005A SHOE BODY SUPPORT MECHANISM OF CURRENT COLLECTOR FOR ROLLING STOCK 失效
公开(公告)号：JPH07163005A
公开(公告)日：1995-06-23
申请号：JP32626793
申请日：1993-12-01
申请人： RAILWAY TECHNICAL RES INST
发明人： MANABE KATSUSHI , IKEDA MITSURU
IPC分类号： B60L5/20 , B60L5/22
摘要： PURPOSE:To suppress a lift generated in a shoe body within a prescribed range by providing a rotating shaft of the shoe body in front of the position of the aerodynamic center of the shoe body and by providing a dashpot giving attenuation to the movement around the rotating shaft. CONSTITUTION:A pantograph device 3 and a shoe body having an elliptic section are connected by a rotating shaft 7 of the shoe body and the rotating shaft 7 of the shoe body 1 is positioned in front of the aerodynamic center 8 of the shoe body 1. Moreover, the elasticity around the rotating shaft 7 of the shoe body 1 is given by a support spring 4, while the attenuation around the rotating shaft 7 of the shoe body 1 is given by a dashpot 5. Since generation of an excessive lift in the shoe body can be prevented, according to this constitution, a shoe body support mechanism of a current collector for a rolling stock which prevents generation of an excessive stress in a contact wire 6 even when a force of contact of the contact wire 6 with a contact strip 2 increases can be realized. Accordingly, no adverse effect is produced on, an electric overhead line either during the running.

66. 发明专利

JPH0678407A PANTOGRAPH 失效
公开(公告)号：JPH0678407A
公开(公告)日：1994-03-18
申请号：JP22567092
申请日：1992-08-25
申请人： RAILWAY TECHNICAL RES INST , FUJI ELECTRIC CO LTD
发明人： MORIKAWA TAKEO , IKEDA MITSURU , MIYAUCHI HIROJI
IPC分类号： B60L5/22
摘要： PURPOSE:To furnish a pantograph having a construction wherein a collector shoe is supported by one extensible support having a diameter minimized, instead of a frame body made up of a number of skeletons. CONSTITUTION:A pantogram having a form wherein a collector shoe 1 is supported by one extensible support. The support is made up of a collector shoe support part 3 supporting the collector shoe elastically and of an extending- contracting part positioned in the lower part of the support part, and the collector shoe support part 3 is equipped with two cylindrical bodies, coil springs 34 suspended between the two cylindrical bodies, a first guide means 33 for guiding movement in the direction of the cylinder between the two cylindrical bodies 31 and 32, and a revolution prohibiting means for prohibiting revolution between the two cylindrical bodies. The extending-contracting part is made up of cylindrical members in a plurality of stages and equipped with second guide means 53, 61, 62 and 65 for guiding the movement in the direction of the cylinder between the upper and lower cylindrical members each comprising two members and with elevating means 52 and 64 for giving an extending- contracting operation between the two cylindrical members according to the second guide means.

67. 发明专利

JPH0568303A ATTRACTIVE CURRENT COLLECTOR 失效
公开(公告)号：JPH0568303A
公开(公告)日：1993-03-19
申请号：JP25699291
申请日：1991-09-09
申请人： RAILWAY TECHNICAL RES INST
发明人： SAKAI INAO , OURA YASUSHI , IKEDA MITSURU
IPC分类号： B60L5/10 , B60L5/22 , H01F7/02
摘要： PURPOSE:To prevent contact loss by utilizing the attraction force, functioning between a magnet and a ferromagnetic body, for making contact with a conductor. CONSTITUTION:A magnet 12 is disposed on the contacting part with a trolley wire 2, i.e., a slider 4 or a collector shoe 11, and the attraction force, functioning with respect to the line 1 of electric vehicle including a ferromagnetic body, is utilized for making contact with the trolley wire 2 thus collecting current. Since high contact force can be obtained, contact loss can be prevented. Furthermore, since a part of contacting force functions to pull down the trolley wire 2 through the magnet 12, the trolley wire 12 is not pushed up considerably and damage on the line 1 can be suppressed.

68. 发明专利

JP2002178797A WAVE MOTION PROPAGATION SPEED MEASURING METHOD OF TROLLEY WIRE, AND TENSION MEASURING METHOD OF TROLLEY WIRE 失效
公开(公告)号：JP2002178797A
公开(公告)日：2002-06-26
申请号：JP2000375656
申请日：2000-12-11
申请人： RAILWAY TECHNICAL RES INST
发明人： IKEDA MITSURU , AMIHOSHI MITSUO , USUDA TAKAYUKI
IPC分类号： G01L5/10 , B60M1/28 , G01H5/00
摘要： PROBLEM TO BE SOLVED: To provide a method of measuring wave motion propagation speed or tension of a trolley wire based on contact force variation of a pantograph measured on a running vehicle. SOLUTION: Regarding to the contact force variation of trolley line- pantograph system, a contact force variation frequency fv generated by the fact that exciting wave motion excited as a result of periodicity of the trolley line propagates through the trolley line, reflects at a discontinuous point of the trolley line, and comes into the pantograph again is represented by fv= (1+β)/(1-β)}×fL. By normalizing the frequency represented by the equation by a train speed, KV= (1+β)/(1-β)}×KL is derived. It is recognized that the wave number KV varies with a ratio β of the train speed and the wave motion propagation speed of the trolley wire. Therefore, when the wave number KV of a dynamic component included in the contact force variation is accurately provided, and simultaneously train speed v is also obtained, the wave motion propagation speed of the trolley wire can be obtained.

69. 发明专利

JP2001165767A METHOD AND DEVICE FOR MEASURING WAVE-MOTION TRANSMITTING VELOCITY OF WIRE 失效
公开(公告)号：JP2001165767A
公开(公告)日：2001-06-22
申请号：JP35017499
申请日：1999-12-09
申请人： RAILWAY TECHNICAL RES INST
发明人： IKEDA MITSURU
IPC分类号： G01P15/00 , G01H17/00
摘要： PROBLEM TO BE SOLVED: To provide a method and device capable of easily and accurately measuring wave-motion transmitting velocity through the use of a measurement value measured at one measurement point in a wire. SOLUTION: This measuring device is constituted of an accelerometer 10 to measure the acceleration α of vertical vibration at one measurement point in a wire W to be measured, a distortion meter 20 to measure the bent distortion ε of a wire surface at the measurement point, and a computing device 30 to compute wave-motion transmitting velocity c. The computing device 30 includes a CPU 31, ROM 32, RAM 33, a setting device 34 to set a coefficient K specific to the wire, a display 35, and an input device 36. The wave-motion transmitting velocity c is computed by the computing device 30 by the expression c=(α/ε)1/K.

70. 发明专利

JP2000270403A PANTOGRAPH 失效
公开(公告)号：JP2000270403A
公开(公告)日：2000-09-29
申请号：JP6951599
申请日：1999-03-16
申请人： RAILWAY TECHNICAL RES INST
发明人： IKEDA MITSURU
IPC分类号： B60L5/26
摘要： PROBLEM TO BE SOLVED: To provide a pantograph capable of restraining contact fluctuation with a trolley line within a specified range when the fluctuation is caused by the change in lift of a shoe in a pantograph having a wing-shaped shoe capable of reducing air noise. SOLUTION: A pantograph 3 is equipped with a shoe 13, which is pressed against a trolley line 1 via a slide plate 11, and air holes 21, 31 are formed to let the air in and out on a front edge of the shoe. The air holes 21, 31 are made in the upper and the lower part of the front edge of the shoe, and connected with air tubes 23, 33 in the shoe 13. Throttle valves 25, 35 are installed in the respective air tube 23, 33, and can adjust the amount of the air from the respective air holes 21, 31. the shoe 13 is pivotally fixed around a shaft, and the position of aerodynamical force center of the lift generated in the shoe 13 can be adjusted by operating the adjusting means.

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