Patent ID: 9545967
Date: 2017-01-17
CPC Classifications: B62K

Claim:
1. A vehicle that is driven by power from a power source, the vehicle comprising: a vehicle body frame; a left front wheel and a right front wheel disposed side by side in a left-and-right direction as seen from a front of the vehicle and that are configured to be steered; a right shock absorbing device that supports the right front wheel at a lower portion thereof and configured to absorb an upward displacement of the right front wheel in an up-and-down direction of the vehicle body frame; a left shock absorbing device that supports the left front wheel at a lower portion thereof and configured to absorb an upward displacement of the left front wheel in the up-and-down direction of the vehicle body frame; a link mechanism including: a steering shaft supported on the vehicle body frame between the right side portion and the left side portion in the left-and-right direction of the vehicle body frame, and including an upper end portion above the lower middle axis in the up-and-down direction of the vehicle body frame and that is turnable about a middle steering axis that extends in the up-and-down direction of the vehicle body frame; a handlebar provided at the upper end portion of the steering shaft; and a turning transmission mechanism configured to transfer a turning motion of the steering shaft to the right shock absorbing device and the left shock absorbing device according to an operation of the handlebar; wherein with the lower cross portion removed and the upper cross portion mounted, an upper right displacement of the upper cross portion that results when a forward or rearward test force in a direction of the lower right axis is exerted on the lower portion of the right side portion and an upper left displacement of the upper cross portion that results when a force that is equal or substantially equal in magnitude and direction as the test force is exerted on the lower portion of the left side portion are equal or substantially equal to each other; with the upper cross portion removed and the lower cross portion mounted, a lower right displacement of the lower cross portion that results when a force that is equal or substantially equal in magnitude and direction as the test force is exerted on the upper portion of the right side portion and a lower left displacement of the lower cross portion that results when a force that is equal or substantially equal in magnitude and direction as the test force is exerted on the upper portion of the left side portion are equal or substantially equal to each other; the upper right displacement of the upper cross portion is larger than the lower right displacement of the lower cross portion; and the upper left displacement of the upper cross portion is larger than the lower left displacement of the lower cross portion.