Working vehicle
AssigneeKubota Corporation
InventorsNoriyuki Miyamaru, Kazuya Okubo, Yuki Takano
Life of this patent
Estimating the term…
Abstract
A working vehicle includes a suspension including a damper to suppress vertical motion of a cabin over a vehicle body, and a restrictor to restrict the cabin at an upper limit position and/or a lower limit position. The restrictor includes a first stopper fixed to the vehicle body, and a second stopper fixed to the cabin. At least one of the first stopper or the second stopper includes a first cushion portion, and a second cushion portion softer than the first cushion portion. The first cushion portion and the second cushion portion are adjacent to each other in a direction intersecting a vertical direction, and the second cushion portion is contactable with a target of contact before the first cushion portion.
Claims9
A working vehicle, comprising:
- a vehicle body;
- a cabin;
- and
- a restrictor to restrict vertical motion of the cabin at at least one of an upper limit position or a lower limit position;
- wherein
- the restrictor includes:
- a first stopper fixed to the vehicle body;
- and
- a second stopper fixed to the cabin and movable toward and away from the first stopper as the cabin moves vertically;
- at least one of the first stopper or the second stopper includes:
- a first cushion portion;
- and
- a second cushion portion softer than the first cushion portion, the first cushion portion and the second cushion portion being adjacent to each other in a direction intersecting a vertical direction;
- and
- the second cushion portion is contactable with the first stopper or the second stopper before the first cushion portion as the cabin moves vertically.
A working vehicle, comprising:
- a vehicle body;
- a cabin;
- and
- a restrictor to restrict vertical motion of the cabin at at least one of an upper limit position or a lower limit position;
- wherein
- the restrictor includes:
- a first stopper;
- and
- a second stopper movable toward and away from the first stopper as the cabin moves vertically;
- at least one of the first stopper or the second stopper includes:
- a first cushion portion;
- and
- a second cushion portion softer than the first cushion portion, the first cushion portion and the second cushion portion being adjacent to each other in a direction intersecting a vertical direction;
- wherein
- the second cushion portion is contactable with the first stopper or the second stopper before the first cushion portion as the cabin moves vertically;
- the first cushion portion includes a tubular portion;
- and
- the second cushion portion is fitted in the tubular portion of the first cushion portion concentrically or substantially concentrically;
- the first cushion portion includes a first tubular portion defining the tubular portion and including a distal end portion and a proximal end portion, and a first base portion connected to the proximal end portion of the first tubular portion, the first base portion extending from an inner circumference of the first tubular portion toward a center of an inner hole of the first tubular portion;
- and
- the second cushion portion includes a second tubular portion including a distal end portion and a proximal end portion, and the proximal end portion of the second tubular portion is fitted in the first tubular portion concentrically or substantially concentrically.
Dependencies are inferred from the claim text.