Leaning vehicle

A leaning vehicle, comprising:

• a vehicle body frame that leans in a leaning-vehicle leftward direction at a time of turning left, and leans in a leaning-vehicle rightward direction at a time of turning right;
• a link mechanism that is a double wishbone link mechanism, the link mechanism including
• a left arm mechanism including:
• an upper-left arm member that is supported by the vehicle body frame so as to rotate about an axis extending in a vehicle-body-frame front-back direction centering on a right part of the upper-left arm member;
• a lower-left arm member that is disposed further downward in a vehicle body-frame downward direction than the upper-left arm member and is supported by the vehicle body frame so as to rotate about an axis extending in the vehicle-body-frame front-back direction centering on a right part of the lower-left arm member;
• and
• a left connection member that is connected to a left part of the upper-left arm member and a left part of the lower-left arm member, wherein
• the left arm mechanism swings in a vehicle-body-frame upward direction when the vehicle body frame leans in the leaning-vehicle leftward direction and swings in the vehicle-body-frame downward direction when the vehicle body frame leans in the leaning-vehicle rightward direction;
• and
• a right arm mechanism including:
• an upper-right arm member that is supported by the vehicle body frame so as to rotate about an axis extending in the vehicle-body-frame front-back direction centering on a left part of the upper-right arm member;
• a lower-right arm member that is disposed further downward in the vehicle-body-frame downward direction than the upper-right arm member and is supported by the vehicle body frame so as to rotate about an axis extending in the vehicle body frame front back direction centering on a left part of the lower-right arm member;
• and
• a right connection member that is connected to a right part of the upper-right arm member and a right part of the lower-right arm member, wherein
• the right arm mechanism swings in the vehicle-body-frame upward direction when the vehicle body frame leans in the leaning-vehicle rightward direction and swings in the vehicle-body-frame downward direction when the vehicle body frame leans in the leaning vehicle leftward direction;
• a left shock absorber having a cushioning action, with a first end part of the left shock absorber being connected to the left arm mechanism;
• a right shock absorber having a cushioning action, with a first end part of the right shock absorber being connected to the right arm mechanism;
• a shock absorber tower to which a second end part of the left shock absorber and a second end part of the right shock absorber are connected, the shock absorber tower being supported by the vehicle body frame so as to rotate around a tower central shaft that extends in the vehicle-body-frame front-back direction, the shock absorber tower having a shape in which, when the vehicle body frame is in an upright state, a distance in a vehicle-body-frame up-down direction between the tower central shaft and the second end part of the left shock absorber or the second end part of the right shock absorber is longer than a distance in a vehicle-body-frame left right direction between the second end part of the left shock absorber and the second end part of the right shock absorber;
• a left wheel tire assembly that is rotatably supported by the left connection member;
• and
• a right wheel tire assembly that is rotatably supported by the right connection member,
• wherein the vehicle body frame includes a first frame part supporting the link mechanism and being rotatable with respect to the shock absorber tower,
• wherein the leaning vehicle has a structure of (A) or (B):
• (A)
• the upper-left arm member includes;
• a first-upper-left-arm-member supported part at which the upper-left arm member to which the first end part of the left shock absorber is connected is supported by the vehicle body frame, and a second-upper-left-arm-member supported part located at a left end part of the upper-left arm member, wherein a length in the front-back direction of the second-upper-left-arm-member supported part is shorter than a length in the front-back direction of the first-upper-left-arm-member supported part;
• and
• the upper-right arm member includes:
• a first-upper-right-arm-member supported part at which the upper-right arm member to which the first end part of the right shock absorber is connected is supported by the vehicle body frame, and a second-upper-right-arm-member supported part located at a right end part of the upper-right arm member, wherein a length in the front-back direction of the second-upper-right-arm-member supported part is shorter than a length in the front-back direction of the first-upper-right-arm-member supported part;
• or
• (B)
• the lower-left arm member includes;
• a first-lower-left-arm-member supported part at which the lower-left arm member to which the first end part of the left shock absorber is connected is supported by the vehicle body frame, and a second-lower-left-arm-member supported part located at a left end part of the lower-left arm member, wherein a length in the front-back direction of the second-lower-left-arm-member supported part is shorter than a length in the front-back direction of the first-lower-left-arm-member supported part;
• and
• the lower-right arm member includes:
• a first-lower-right-arm-member supported part at which the lower-right arm member to which the first end part of the right shock absorber is connected is supported by the vehicle body frame, and a second-lower-right-arm-member supported part located at a right end part of the lower-right arm member, wherein a length in the front-back direction of the second-lower-right-arm-member supported part is shorter than a length in the front-back direction of the first-lower-right-arm-member supported part;
• wherein in the case where the leaning vehicle has the structure of (A):
• the shock absorber tower is disposed further forward in a vehicle-body-frame frontward direction or further backward in a vehicle-body-frame backward direction than the first-upper-left-arm-member supported part and the first-upper-right-arm-member supported part so that the movable range of the shock absorber tower is separated from a movable range of the left arm mechanism and movable range of the right arm mechanism in the vehicle-body-frame front-back direction, and
• the shock absorber tower is supported at a portion other than a portion located between a front end and back end of the first-upper-left-arm-member supported part and a portion located between a front end and back end of the first-upper-right-arm-member supported part in the vehicle body frame;
• or
• wherein in the case where the leaning vehicle has the structure of (B):
• the shock absorber tower is disposed further forward in a vehicle-body-frame frontward direction or further backward in a vehicle-body-frame backward direction than the first-lower-left-arm-member supported part and the first-lower-right-arm-member supported part so that the movable range of the shock absorber tower is separated from a movable range of the left arm mechanism and movable range of the right arm mechanism in the vehicle-body-frame front-back direction, and
• the shock absorber tower is supported at a portion other than a portion located between a front end and back end of the first-lower-left-arm-member supported part and a portion located between a front end and back end of the first-lower-right-arm-member supported part in the vehicle body frame.