| 发明名称 |
CONVEYANCE CART |
| 摘要 |
A conveyance cart includes: a body frame; a deck provided liftably against the body frame to load a burden; an electric actuator electrically driven to expand or contract to lift or lower the deck; a current detection element that detects an electric current value supplied to the electric actuator; and a PWM control element that drives the electric actuator in a pulse width modulation (PWM) control manner. The PWM control element increases an on-duty ratio input to the electric actuator if the electric current value detected by the current detection element exceeds a setting value when the deck is lifted. |
| 申请公布号 |
US2015028787(A1) |
申请公布日期 |
2015.01.29 |
| 申请号 |
US201314383994 |
申请日期 |
2013.03.07 |
| 申请人 |
KAYABA INDUSTRY CO., LTD. |
发明人 |
Sekine Shinichi;Miyatani Osamu |
| 分类号 |
H02P7/29 |
主分类号 |
H02P7/29 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A conveyance cart that can convey a loaded burden, comprising:
a body frame supported by a wheel; a deck provided liftably against the body frame to load a burden; an electric actuator electrically driven to expand or contract to lift or lower the deck; a current detection element that is configured to detect an electric current value supplied to the electric actuator; and a PWM control element that is configured to drive the electric actuator in a pulse width modulation (PWM) control manner, wherein the PWM control element increases an on-duty ratio input to the electric actuator if the electric current value detected by the current detection element exceeds a setting value when the deck is lifted. |
| 地址 |
Tokyo JP |
