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1. (WO2013124994) TROLLEY-TYPE TRUCK

Pub. No.:    WO/2013/124994    International Application No.:    PCT/JP2012/054327
Publication Date: Fri Aug 30 01:59:59 CEST 2013 International Filing Date: Thu Feb 23 00:59:59 CET 2012
IPC: B60L 5/24
Applicants: HITACHI POWER SOLUTIONS CO., LTD.
株式会社日立パワーソリューションズ
HITACHI CONSTRUCTION MACHINERY CO., LTD.
日立建機株式会社
NAKAJIMA Atsushi
中島 厚志
KANAZAWA Hiroyuki
金澤 博之
YASUDA Tomohiko
安田 知彦
Inventors: NAKAJIMA Atsushi
中島 厚志
KANAZAWA Hiroyuki
金澤 博之
YASUDA Tomohiko
安田 知彦
Title: TROLLEY-TYPE TRUCK
Abstract:
A trolley-type truck is provided with a pantograph (4) and travels by using a trolley mode for traveling by means of the power obtained from an overhead line, and a non-trolley mode for traveling without obtaining power from the overhead line. The pantograph is provided with an underframe (6), a bottom frame (8) and a top frame (10) slidably attached to the underframe, and a collector shoe (5) supported by the tip of the top frame. Moreover, a securing member (25) disposed toward the tip of the top frame and for securing the pantograph, a key device (23) disposed on the underframe and for securing the securing member for securing the pantograph by forcibly pressing down the securing member, and a key receiver (24) disposed on the underframe in order t receive the securing member are also provided. When a frame assembly constituting the bottom frame and the top frame is folded, the securing member becomes seated in the key receiver and is pressed by means of the key device, thereby forcibly securing the frame assembly to the underframe. As a consequence, it is possible to prevent the pantograph from deforming or becoming damaged when the truck travels in the non-trolley mode.