专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPH1066202A PROTRUDING PART COVER FOR RAILWAY CAR 失效
公开(公告)号：JPH1066202A
公开(公告)日：1998-03-06
申请号：JP21284796
申请日：1996-08-12
申请人： TOKAI RYOKAKU TETSUDO KK
发明人： ISHIZU KAZUMASA , KITAYAMA SHIGERU , SHIBUYA MASAYUKI , TANABE KOJI
IPC分类号： B61D17/02 , B60L5/24 , B61D49/00
摘要： PROBLEM TO BE SOLVED: To provide a protruding part cover for a railway car which makes it possible to reduce aerodynamic noise arising from the top part of a cover when positioned in the rear in the forward direction. SOLUTION: When a first cover part 12 comes front in the forward direction, a first flexible part 16 sticks to a first edge-shape solid part 13 so that a boundary between a first lifting surface 17 and a first inside surface 18 forms an edge shape, while a second flexible part 26 swells so that the one between a second lifting part 27 and a second inside surface 28 forms a curve shape. Because of this structure, the first lifting surface 17 lifts running wind above a pantograph 4, causing it to hit against around the boundary between the second lifting surface 27 and the second inside surface 28. However, no aerodynamic noise is caused to occur because this boundary is of the curve shape. When a second cover part 22 comes front in the forward direction, on the contrary, the boundary between the first lifting surface 17 and the first inside surface 18 becomes the curve shape, while the one between the second lifting part 27 and the second inside surface 28 becomes the edge shape. As in the case above, no aerodynamic noise is caused to occur, either.

22. 发明专利

JPH09243506A METHOD AND APPARATUS FOR TESTING MODEL OF RAILROAD VEHICLE 失效
公开(公告)号：JPH09243506A
公开(公告)日：1997-09-19
申请号：JP4930996
申请日：1996-03-06
申请人： TOKAI RYOKAKU TETSUDO KK , KAWASAKI HEAVY IND LTD
发明人： ISHIZU KAZUMASA , KITAYAMA SHIGERU , MIZUKAMI KIICHI , ISHIZUKA OSAMU , NEMA KIYOSHI
IPC分类号： G01M10/00 , G01M17/08
摘要： PROBLEM TO BE SOLVED: To easily and correctly determine a hydrodynamics phenomenon associated with running of a railroad vehicle by arranging a track model at a position sufficiently separated from wall faces, a bottom face and a water level of a water bath. SOLUTION: A vehicle model 21 which is a faithful reproduction of an actual railroad vehicle to be tested runs in a static water 24 within a tow water bath 23 along a track model 22 reproduced likewise. The model 22 is laid on a supporting structure 25 and can be adjusted in position by adjusting an adjusting member 26 from above the water level. The model 21 is suspended from a lift device 27 via a holding member 28, a mounting member 29 and a suspending member 30. The model 21 is suspended at a position sufficiently separated from a water level 31 of the static water 24, and a side face 32 and a bottom face 33 of the water bath 23. It is essential in the water bath 23 to maintain linear accuracies in up-down and right-left directions of a rail 36 where a tow truck 34 runs. The linear accuracy of tone rail 36 is adjusted after the water bath 23 is set at a predetermined water level.

23. 发明专利

JPH0888903A CURRENT COLLECTOR FOR RAILWAY 失效
公开(公告)号：JPH0888903A
公开(公告)日：1996-04-02
申请号：JP22041094
申请日：1994-09-14
申请人： TOKAI RYOKAKU TETSUDO KK
发明人： ISHIZU KAZUMASA , ITO JUNICHI , OKADA KIYOSHI , ITO TATSUHIRO , KITAYAMA SHIGERU
IPC分类号： B61D49/00 , B60L5/26
摘要： PURPOSE: To prevent the generation of aerodynamic sound during traveling while suppressing the increase in the weight of a train. CONSTITUTION: Two current collecting shoe elevating mechanisms are installed at a pantograph 2, and the mechanisms and current collecting shoes are eccentrically deviated laterally at a train. Thus, when the two mechanisms are opposed longitudinally of the train, the both can approach to each other, and a pantograph cover 11 for enclosing the pantograph 2 can be reduced in size and weight. When the train is advanced, the two mechanisms are operated, only the rear shoe with respect to the advancing direction is brought into contact with a trolley wire, and the other shoe is retained in a folded state. Thus, an air flow generated by the traveling of the train is jumped up to the oblique surface 11a of the cover 11, thereby suppressing the flowing speed in contact with the shoes and the mechanisms.

24. 发明专利

JPH0880230A SWIVELING CHAIR FOR RAILWAY ROLLING STOCK 失效
公开(公告)号：JPH0880230A
公开(公告)日：1996-03-26
申请号：JP22041194
申请日：1994-09-14
申请人： TOKAI RYOKAKU TETSUDO KK , KENMOCHIISAMU DESIGN KENKYUSHO
发明人： ISHIZU KAZUMASA , ITO JUNICHI , OKADA KIYOSHI , KITAYAMA SHIGERU
IPC分类号： A47C7/50 , A47C1/034 , B61D33/00
摘要： PURPOSE: To provide a swiveling chair for a railway rolling stock, having a very restful and convenient footrest at each chair. CONSTITUTION: The chair 1 comprises a seat 13, a leg base 15, a back 17, arms 19 and further, bases 23a to 23c which are box-shaped members for supporting the seat 13 and a swiveling mechanism 21 for supporting the bases 23a to 23c so that the bases 23a to 23c can swivel 180 deg.C for the leg base 15. The footrest 11 and a footrest moving mechanism are disposed in the bases 23a to 23c. The footrest moving mechanism is driven by a servo motor 41 to convey/store the footrest 11 from/to the front opening of the bases 23a to 23c. The footrest 11 is constituted by a sole supporting section 11b and a leg supporting section 11a. The legs of the user can be rested by being supported in various states in a manner such that the sole supporting section 11b is overlapped to the leg supporting section 11a or is lifted to the right angle.

25. 发明专利

JPH06276667A ABNORMALITY SENSOR FOR MIST-COOLED TYPE ELECTRIC APPARATUS 失效
公开(公告)号：JPH06276667A
公开(公告)日：1994-09-30
申请号：JP5916693
申请日：1993-03-19
申请人： TOKAI RYOKAKU TETSUDO KK , FUJI ELECTRIC CO LTD
发明人： ISHIZU KAZUMASA , SHIBUYA SUSUMU , WATANABE KOJI , NAKAGAMI YOSHITAKE , WATANABE SHUNEI , OKAMOTO YUKIO
IPC分类号： H01F27/08 , H02H5/00
摘要： PURPOSE:To sense an abnormality of an atomization from the outside of a tank regardless of the positions or number of atmizers provided in the tank, in a,mist-cooled type electric apparatus. CONSTITUTION:An atomizer 1 which atomizes a cooling medium 8 by the application of the ultrasonic vibration given from a piezoelectric element is provided. Further, a flow-rate monitoring part 14 which monitors the electric quantity fed to the piezoelectric element of the atomizer 1 comprises a flow-rate sensor 11 which transduces the flow rate of the cooling medium 8 fed to the atomizer 1 into an electric signal IIS and outputs it, a flow-rate deciding part 12 which outputs an informative signal 12S when the output level of the output signal 115 of the flow-rate sensor 11 deviates from a preset range, and a flow-rate- abnormality displaying part 13 which displays the abnormality of the flow rate of the cooling medium 8 by receiving the output signal 12S of the flow-rate deciding part 12.

26. 发明专利

JPH0661066A COOLING STRUCTURE OF ELECTRIC APPARATUS 失效
公开(公告)号：JPH0661066A
公开(公告)日：1994-03-04
申请号：JP21391692
申请日：1992-08-11
申请人： TOKAI RYOKAKU TETSUDO KK , FUJI ELECTRIC CO LTD
发明人： ISHIZU KAZUMASA , SHIBUYA SUSUMU , INETAMA SATORU , NAKAGAMI YOSHITAKE , WATANABE SHUNEI , OKAMOTO YUKIO
IPC分类号： H01F27/08 , H01F27/18 , H01F27/24
摘要： PURPOSE:To realize structure wherein a spraying equipment for spraying refrigerant in a tank can be easily taken in and out from outside the tank, and the refrigerant can be directly sprayed against the winding shadowed by an iron core. CONSTITUTION:A spraying equipment 40 consists of a rectilinear liquid guide tube 50 for introducing liquid state refrigerant into a tank 12, and nozzles 60 which are buried in the liquid guide tube 50 and spray the liquid state refrigerant against the inside of the tank 12. A plurality of the nozzles 60 are arranged in the axial direction of the liquid guide tube 50. The one end of the liquid guide tube 50 is detachably fixed on the tank wall via a flange 9. The spraying equipment 40 is interposed between cores of an electric apparatus main body, and the nozzles 60 are arranged so as to face the winding.

27. 发明专利

JPS59188302A Speed controller of electric railcar 失效
标题翻译：电力控制器
公开(公告)号：JPS59188302A
公开(公告)日：1984-10-25
申请号：JP6066683
申请日：1983-04-08
申请人： Hitachi Ltd , Hitachi Techno Eng Co Ltd , Japanese National Railways
发明人： ISHIZU KAZUMASA , HASHIMOTO SHIYUNICHI , KAWAKAMI TETSUYA , NOZAKI YOSHIO , TOYODA EIICHI
IPC分类号： H02P3/18 , B60L7/14
CPC分类号： B60L7/14 , B60L2200/26 , B60L2220/12
摘要： PURPOSE:To prevent the brake torque of an electric railcar by increasing a current limiting value command when a voltage and a rotary field frequency applied to an induction motor move from constant voltage and variable frequency range to variable voltage and variable frequency range. CONSTITUTION:A slip frequency generator 2 supplies a slip frequency command in response to the deviation between the output of a pulse generator 1 and a speed command 100 and in response to the deviation between a current limiting value command 102 and the current of an induction motor 6 to a low priority circuit 4. A controller 5 supplies a signal for controlling the rotary field frequency and a voltage command for controlling the applied voltage to a stationary inverter 14. A correcting circuit 20 outputs a correcting value in response to the current limiting value command while the ratio of the applied voltage/the rotary field freqeuency increases while the voltage and rotary field frequency applied to the motor 6 move from constant voltage and variable frequency range to variable voltage and variable frequency range.
摘要翻译：目的：当施加到感应电动机的电压和旋转场频从恒定电压和可变频率范围移动到可变电压和可变频率范围时，通过增加限流值指令来防止电气轨道车辆的制动转矩。构成：滑差频率发生器2响应于脉冲发生器1的输出和速度指令100之间的偏差并响应于限流值指令102和感应电动机的电流之间的偏差而提供滑差频率指令 6到低优先级电路4.控制器5将用于控制旋转场频的信号和用于控制施加电压的电压命令提供给固定逆变器14.校正电路20响应于当前限制值输出校正值当施加到电动机6的电压和旋转场频从恒定电压和可变频率范围移动到可变电压和可变频率范围时，施加电压/旋转磁场频率的比率增加。

28. 发明专利

JPS58108909A SPEED CONTROLLER FOR ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPS58108909A
公开(公告)日：1983-06-29
申请号：JP20698281
申请日：1981-12-23
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： ISHIZU KAZUMASA , NUKARIYA KOUKICHI , NOZAKI YOSHIO , TOYODA EIICHI
IPC分类号： B60L9/12 , B60L9/18 , B60L15/28 , H02P5/68 , H02P7/298
摘要： PURPOSE:To reduce torque unbalance which is produced between DC motors by throttling a common control instruction with difference of larger deviation signal of deviation signal between the common control instruction and each armature current exceeding the reference value. CONSTITUTION:Comparators 56, 58 respectively compare a common control instruction 212 outputted from a low priority circuit 54 with armature currents 214, 216 of each motor and supply control deviation signals 218, 220 to phase controllers 64, 66. A high priority circuit 82 outputs as a priority signal 232 larger signal of control deviation signals 218, 220. A comparator 86 applies the difference 234 exceeding the reference value 230 of the signal 232 to a comparator 88, thereby throttling the common control instruction 212. In this manner, the torque unbalance between DC motors which are driven in parallel with each other can be eliminated.

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