DOLLY USING A WARM-KEPT BATTERY AS ITS DRIVING POWER SOURCE

摘要

A dolly using a warm-kept battery as its driving power source is described, which comprises a member for loading thereon an article to be conveyed and a shoe for feeding a required electric power from a trolley, and which is adapted to run along equipped rails for conveying said article, said dolly being characterized in that it is provided with a battery serving as a driving power source for said dolly which battery is covered by a heat insulating material and includes a heater associated with a thermostat and heated by an electric power fed from said trolley through said shoe, and plug portions which can be detachably engaged with members for forcibly discharging hydrogen gas produced upon charging said battery.