|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 12|
A lift truck includes a secondary rechargeable energy storage device on a vertically movable platform that is separate from a primary rechargeable energy storage device on the lift truck's main tractor unit without the use of wires or hoses for transfer of power or controls between the main tractor unit and the platform. The quantity of energy stored in the secondary rechargeable energy storage device is sufficient to power platform electrical loads for a predetermined amount of time until the platform is lowered. When the platform is lowered, the second...
1. A lift truck comprising: a tractor unit;a primary energy storage device disposed on the tractor unit, the primary energy storage device adapted to provide operating power to the tractor unit;a vertically movable platform mounted relative to the tractor unit, the platform being vertically movable between an upper position and a lower position;a rechargeable secondary energy storage device disposed on the platform, the rechargeable secondary energy storage device being rechargeable upon moving the platform toward the lower position;an energy transfer co...