To provided a pantograph for a railroad vehicle, capable of obtaining, without replacing a cam member, a horizontal characteristic of a pushing force that is constant regardless of the amount of extension of the framework.SOLUTION: A pantograph PG for a railroad vehicle of the present invention comprises: an underframe 1 that is mounted on a roof of the railroad vehicle; a framework 3 that has a lower frame 31 which is swingably connected to a main shaft 2 provided on the underframe, and an upper frame 33 which is swingably connected to the lower frame and supports a collector head 4; and a main spring 6 that urges the framework upward toward an extension side. In the pantograph PG for a railway vehicles, a cam member 7 is attached to a main shaft, a cord 61 with one end connected to the main spring is arranged along a peripheral surface 7a of the cam member, and the other end of the cord is connected to a predetermined position of the cam member, and urging force of the main spring causes a rotational moment to act on the main shaft via the cam member, the cam member is externally fitted onto the main shaft, and regulating means 8 for regulating axially forward and backward movements of the cam member and relative rotation of the cam member in a rotational direction by the urging force of the main spring, with respect to the main shaft is further provided, and the regulating means is provided with an angle adjustment part 81 for adjusting an attachment angle about the main shaft, of the cam member.SELECTED DRAWING: Figure 1

    【課題】カム部材を交換することなく、枠組の伸び量に依らない一定の押上力の水平特性が得られるようにした鉄道車両用のパンタグラフを提供する。【解決手段】鉄道車両の屋根上に搭載される台枠1と、この台枠に設けた主軸2に揺動自在に連結される下枠31とこの下枠に揺動自在に連結されて集電舟4を支持する上枠33とを有する枠組3と、枠組を上方の伸び側に付勢する主ばね6と、を備える本発明の鉄道車両用のパンタグラフPGは、主軸にカム部材7が取り付けられ、一端が主ばねに連結された索条61をカム部材の周面7aに沿わせてこの索条の他端をカム部材の所定箇所に連結し、主ばねの付勢力によりカム部材を介して主軸に回転モーメントが作用するようにし、カム部材が主軸に外挿され、カム部材の軸方向前後への移動と、主ばねの付勢力による回転方向へのカム部材の主軸に対する相対回転とを規制する規制手段8を更に備え、規制手段に、主軸回りのカム部材の取付角度を調整する角度調整部81が設けられる。【選択図】図1


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    Title :

    PANTOGRAPH FOR RAILROAD VEHICLE


    Additional title:

    鉄道車両用のパンタグラフ


    Contributors:

    Publication date :

    2022-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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