CROSSING GATE

• Main Author: SAKURAI IKUO
• Format: Patent
• Language: English; Japanese
• Published: 25.07.2019
• Subjects: ENSURING THE SAFETY OF RAILWAY TRAFFIC; GUIDING RAILWAY TRAFFIC; PERFORMING OPERATIONS; RAILWAYS; TRANSPORTING

To achieve a crossing gate which can close a crossing in shutting down a power source in the thin crossing gate in which a loaded motor is reduced in the size and power consumption.SOLUTION: An oscillating arm part 30 supported by a crossing rod rotating shaft 20 has a crossing rod 32 on one end side and a weight attaching bar 52 which can oscillate by an electric motor 40 on the other end side. The crossing rod 32 is ascended and descended by controlling to drive the electric motor 40 so that one of first torque for descending the side of the crossing rod 32 and second torque for descending the side of a weight 50 is dominant over the other. In the time of a power failure, the crossing rod 32 and the weight attaching bar 52 become freely rotatable by the respective rotating shafts. When the weight attaching bar 52 completes to descend, resistance torque T3 for suppressing the natural fall of the crossing rod 32 by frictional resistance or the like by making a first projection part 62 and a second projection part 64 abut on each other is generated.SELECTED DRAWING: Figure 8 【課題】搭載するモータを小型化乃至低消費電力化することができる薄型の踏切しゃ断機であって、且つ電源しゃ断時でも踏切をしゃ断できる踏切しゃ断機を実現すること。【解決手段】しゃ断かん回転軸２０に枢支された揺動腕部３０の一端側にしゃ断かん３２を有し、他端側に電動モータ４０で揺動可能なウェイト取付バー５２を有する。しゃ断かん３２の側を降下させる第１トルクと、ウェイト５０の側を降下させる第２トルクと、の何れかが優勢となるように電動モータ４０を駆動制御してしゃ断かん３２を昇降する。停電時は、しゃ断かん３２とウェイト取付バー５２は、それぞれの回転軸で自由回転可能となる。ウェイト取付バー５２が降下しきると、第１突起部６２と第２突起部６４とが当接することによる摩擦抵抗等によってしゃ断かん３２の自然降下を抑制する抵抗トルクＴ３を生じさせる。【選択図】図８