초록 ▼

An improved wheelbarrow is disclosed which has a body with a foldable rear section and stable front section, a rack, and front wheels fixed on both ends of a wheel axle. The wheel axle is supported at both its sides with a flexing case which provides elastic movement to the wheel axle by means of a

An improved wheelbarrow is disclosed which has a body with a foldable rear section and stable front section, a rack, and front wheels fixed on both ends of a wheel axle. The wheel axle is supported at both its sides with a flexing case which provides elastic movement to the wheel axle by means of a spring and a pushing plate. A braking device for the front wheels is also disclosed, as well as auxiliary rear wheels. The wheelbarrow has three different configuration and is capable of safe movement while reducing the amount of force necessary for its use.

대표청구항 ▼

An improved wheelbarrow capable of being used as a two-wheeled and a four-wheeled device which comprises: a body having a front section, an axis bar and a rear section, the rear sections having a handle including pipes; the front section including pipes, two front wheels and two rear wheels each rot

An improved wheelbarrow capable of being used as a two-wheeled and a four-wheeled device which comprises: a body having a front section, an axis bar and a rear section, the rear sections having a handle including pipes; the front section including pipes, two front wheels and two rear wheels each rotatably mounted on the front section pipes, and braking devices for the two front wheels; the pipes of the front and rear sections each having one end pivotally attached to the axis bar, a folding device for permitting the push handle of the front section to pivot about the axis bar, the folding device including controlling blocks arranged in the one end of the pipes of the front section, movable blocks and springs arranged within the one end of the pipes of the handle so that the springs force the movable blocks against the controlling blocks in an engaging relationship, and a pulling stick arranged to release the force of the springs, so that the movable blocks and controlling blocks can be disengaged and the push handle can be pivoted to at least one of three positions including a first position of the push handle being an extension to the front section when the wheelbarrow is used as the two-wheeled device, a second position of the push handle being vertical to the front section when the wheelbarrow is used as the four-wheeled device, and a third position of the push handle being folded on the front section for storage of the wheelbarrow, and a rack for one of loading and unloading arranged on the front section at an end opposite the folding device.