Title:
TRANSPORT CARRIAGE
Document Type and Number:
WIPO Patent Application WO/2013/137111
Kind Code:
A1
Abstract:
This transport carriage is provided with: a body frame supported by wheels; a loading platform on which a load is placed, said loading platform being disposed on the body frame in a vertically movable manner; an electric actuator that is telescopically driven by electric power so as to raise and lower the load; a current detector for detecting the current value of a current supplied to the electric actuator; and a pulse width modulation (PWM) controller that drives the electric actuator through PWM control. When raising the loading platform, the PWM controller raises an on-duty ratio to be inputted into the electric actuator when the current value detected by the current detector exceeds a set value.
Inventors:
SEKINE SHINICHI (JP)
MIYATANI OSAMU (JP)
MIYATANI OSAMU (JP)
Application Number:
PCT/JP2013/056327
Publication Date:
September 19, 2013
Filing Date:
March 07, 2013
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
B62B3/06; B66F9/06; B66F9/24
Foreign References:
| JPH0475921U | 1992-07-02 | |||
| JP3161725U | 2010-08-05 | |||
| JPS6362602U | 1988-04-25 |
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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