PANTOGRAPH FOR RAILWAY VEHICLE

• Main Author: NAKAJIMA SHINJI
• Format: Patent
• Language: English; Japanese
• Published: 04.03.2022
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

To provide a pantograph for a railway vehicle that is capable of holding a framework in a folded attitude even in a state where the framework does not descend to a regular position from a deployed attitude.SOLUTION: A pantograph PG includes: an underframe 1; a framework 3 having a lower frame 31 connected to a main spindle 2 of the underframe and an upper frame 33 connected to the lower frame and supporting a collector head 4; a main spring 5 for energizing the framework into a deployed attitude; and a lock mechanism 7 for holding the framework in a folded attitude. The lock mechanism includes: a hook member 73 having a hook part 74 engageable with an engagement part 41; energization means 76 for energizing the hook member toward one side in a turning direction at which the hook part is engageable with the engagement part; and an actuator 77 for turning the hook member toward the other side in the turning direction against energization force of the energization means into a retreated attitude in which the hook part separates from the engagement part. The hook member includes: a main hooking part 74a engageable with the engagement part at a regular descended position as a hooking part; and an auxiliary hooking part 74b engageable with the engagement part at a halfway descended position separated upward from the regular descended position.SELECTED DRAWING: Figure 2 【課題】展開姿勢から正規位置まで枠組が下降しない状態でも、枠組を折畳姿勢に保持することができる鉄道車両用のパンタグラフを提供する。【解決手段】パンタグラフＰＧは、台枠１と、台枠の主軸２に連結される下枠３１と下枠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、展開姿勢に枠組を付勢する主ばね５と、折畳姿勢に枠組を保持するロック機構７とを備え、ロック機構が、係合部４１に係合可能な鉤部７４を有する鉤部材７３と、鉤部材を鉤部が係合部に係合可能となる旋回方向一方に向けて付勢する付勢手段７６と、鉤部材を鉤部が係合部から離隔する退避姿勢に付勢手段の付勢力に抗して旋回方向他方に向けて旋回させるアクチュエータ７７とを有し、鉤部材は、鉤部として正規下降位置で係合部に係合可能な主鉤部７４ａと正規下降位置から上方に離間した中途下降位置で係合部に係合可能な補助鉤部７４ｂとを備える。【選択図】図２