| 摘要 |
<p>A trolley which moves along a rail and realizes braking when necessary is disclosed. The trolley according to an embodiment of the present invention comprises: a wheel which rolls in contact with a rail; a body which supports the wheel; a brake unit which puts or releases pressure on or from the wheel or the rail; and a handle unit which is connected to the brake unit and provides torque from the lower part of the body to the brake unit. The handle unit comprises a folding unit which can be folded.</p> |
