Lever device and working machine including the same

A lever device comprising:

• a fixed body;
• a movable body rotatably supported by the fixed body via a first support shaft;
• a lever to be operated to rotate the movable body about the first support shaft, the lever being supported by a second support shaft provided at the movable body such that the lever is rotatable between a pushed-down position and a pulled-up position, the pulled-up position being a position of the lever rotated upward from the pushed-down position;
• a tension spring to bias the lever;
• and
• a switching mechanism to switch a direction of a biasing force of the tension spring to change between when the lever is in the pushed-down position and when the lever is in the pulled-up position such that the biasing force of the tension spring acts in a direction in which the lever is pulled down when the lever is in the pushed-down position and acts in a direction in which the lever is pulled up when the lever is in the pulled-up position;
• wherein the switching mechanism includes:
• a rotational body to rotate together with the lever about the second support shaft, the rotational body including a first spring hook portion and a first engagement portion positioned such that an axis of the second support shaft is located between the first spring hook portion and the first engagement portion;
• and
• a link rotatably supported by the movable body via a third support shaft, the link including a second spring hook portion and a second engagement portion positioned such that an axis of the third support shaft is located between the second spring hook portion and the second engagement portion;
• the tension spring is connected between the first spring hook portion and the second spring hook portion;
• and
• the link is positioned such that the first engagement portion and the second engagement portion are engageable with each other and such that the first engagement portion is movable by rotation of the rotational body about the second support shaft to cause the second engagement portion to move and rotate about the third support shaft to move the second spring hook portion to a side to which the first spring hook portion moves.