PANTOGRAPH CONTROL DEVICE FOR TROLLEY-TYPE TRUCK

WIPO Patent Application WO/2013/124995

A1

A trolley-type truck is provided with a pantograph mounted on the top of the truck, and a control device (33) for controlling the pantograph, 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, a bottom frame slidably attached to the underframe, a top frame slidably attached to the bottom frame, a collector shoe (5) supported by the top frame, and a key device for securing the top frame to the underframe when the pantograph is folded. The control device controls the pantograph so as to lower same when a pantograph lowering command is inputted, and controls the key device so that the pantograph becomes secured after the pantograph is stored. As a consequence, it is possible to protect and control the pantograph so as to certainly prevent the pantograph mounted on the truck from becoming damaged or breaking down due to the pantograph deforming.

NAKAJIMA ATSUSHI (JP)
KANAZAWA HIROYUKI (JP)
YASUDA TOMOHIKO (JP)

PCT/JP2012/054329

August 29, 2013

February 22, 2012

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HITACHI ENG SERVICE (JP)
HITACHI CONSTRUCTION MACHINERY (JP)
NAKAJIMA ATSUSHI (JP)
KANAZAWA HIROYUKI (JP)
YASUDA TOMOHIKO (JP)

B60L5/24

WO2011135870A1

2011-11-03

JP2007028814A	2007-02-01
JP2004304895A	2004-10-28
JPH09107603A	1997-04-22
JPH0363001U	1991-06-20

POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)

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