Forwarder
AssigneeOsa AB
InventorOlof Herolf
Life of this patent
Estimating the term…
Abstract
A forwarder has an elongate rigid chassis with a cab at a forward end, a load carrier on the chassis, and a crane serving the load carrier. Four wheels at the front are mounted as a pair on each side, each pair on a common yoke to form a bogie. The bogies can pivot relative to the chassis for up and down movement of the wheels, but the wheels are non-steerable. A single wheel at each side at the rear of chassis is steerable, to provide steering of the forwarder. The cab, the operator, the load lifting device and the load carrier always have the same, fixed, orientation at all times.
Claims17
A forwarder having a wheeled chassis, a driver's cab, a load carrier and a load lifting device for serving the load carrier, comprising:
- a longitudinally extending rigid chassis having a longitudinal axis, said driver's cab mounted on and above the front end of the chassis on said axis;
- a pair of non-steerable wheels mounted on each side of said chassis beneath said driver's cab, each pair of wheels mounted on a common yoke to form a bogie which is individually pivotal about a horizontal axis relative to said chassis;
- said load carrier mounted on said chassis and symmetrical with said axis;
- a single pair of wheels attached to said chassis, at the rear end, a wheel on each side of said chassis and mounted by a pendulum suspension, each wheel of said single pair of wheels being steerable by a pivotal movement relative to said chassis, said load lifting device mounted on the front end of the chassis above the driver's cab along said axis, the load lifting device, the drivers cab and the load carrier having a fixed geometrical orientation along said axis at all times.
A forwarder comprising:
- a single longitudinally extending rigid wheeled chassis having front and rear ends and a longitudinal axis,
- a driver's cab mounted above said front end of said chassis,
- a load carrier associated with said chassis behind said drier's cab, and
- a load lifting device mounted above said driver's cab for loading a load onto said load carrier;
- said driver's cab, said load carrier and said load lifting device being along said longitudinal axis;
- a lateral pair of wheels mounted on each side of said front end of said chassis, each lateral pair of wheels mounted on a common yoke to form a bogie,
- said bogie being pivotably mounted relative to said chassis whereby said bogie is pivotable about a horizontal axis relative to said chassis;
- a single pair of rear wheels mounted on said rear of said chassis,
- pendulum suspension means for mounting said rear wheels to permit said rear wheels to pivot relative to said chassis in a direction transversely extending to the axial direction of said chassis,
- steering means for steering said rear wheels,
- said steering means being capable of effecting a pivotable movement of said rear wheels relative to said chassis.
A forwarder having an elongate rigid chassis;
- a pair of non-steerable front wheels mounted on each side of said chassis at a forward end thereof, each pair of wheels mounted on a common yolk to form a bogie pivotal about a horizontal axis;
- a single pair of rear wheels mounted at a rear end of the chassis, said single pair of wheels mounted by a pendulum suspension and steerable relative to said chassis;
- a cab mounted on said forward end of said chassis over said front wheels, said cab being along a said longitudinal axis;
- a load carrier, mounted on said chassis behind said cab, said load carrier extending along said longitudinal axis;
- a load lifting device mounted on said chassis above said cab and rotatable about a vertical axis extending from said longitudinal axis;
- said cab, said load carrier and said load lifting device having a fixed orientation along said longitudinal axis at all times.
Dependencies are inferred from the claim text.