Utility vehicle

1. A utility vehicle provided with a ROPS surrounding a riding space, and a bonnet positioned ahead of the riding space, the ROPS having a lower front portion positioned substantially at a center in a vehicle anteroposterior direction of the bonnet, the utility vehicle comprising:

a windshield positioned ahead of the ROPS, extending downward from an upper portion of the ROPS to the bonnet, and covering, from ahead, the riding space; and

a storage box disposed in a bonnet chamber covered with the bonnet; wherein

the storage box includes a box body having an open upper end, and a detachable box cover disposed substantially flush with the bonnet and covering, from above, the box body, and

the entire box cover is positioned behind a lower end of the windshield.

2. The utility vehicle according to claim 1 , wherein

the ROPS includes a pair of front pillars extending upward from respective ends in a vehicle width direction of the bonnet, and a front beam coupling upper ends of the front pillars, and

the windshield has lateral ends in the vehicle width direction and an upper end supported by the front pillars and the front beam, respectively.

3. The utility vehicle according to claim 2 , wherein the windshield is detachably attached to the front pillars and the front beam by a plurality of clamps.

4. The utility vehicle according to claim 1 , further comprising:

a front fixing mechanism configured to fix a front end of the box cover to the bonnet and the box body; and

a rear fixing mechanism configured to fix a rear end of the box cover to the bonnet and the box body; wherein

the front fixing mechanism includes an engagement concave portion provided at the bonnet, and an engagement projection provided to project forward at the front edge of the box cover and configured to be inserted from backward, or from upward and backward, to the engagement concave portion, and

the rear fixing mechanism is a latch lock mechanism configured to manually lock and unlock.

5. The utility vehicle according to claim 1 , wherein the windshield includes a ventilation hole enabling ventilation between interior and exterior of the riding space, and a shutter configured to regulate an opening degree of the ventilation hole.

6. The utility vehicle according to claim 5 , wherein the shutter is supported by the windshield slidably along a rear surface of the windshield.

7. A utility vehicle provided with a ROPS surrounding a riding space, and a bonnet positioned ahead of the riding space, the ROPS having a lower front portion positioned substantially at a center in a vehicle anteroposterior direction of the bonnet, the utility vehicle comprising:

a windshield positioned ahead of the ROPS, extending downward from an upper portion of the ROPS to the bonnet, and covering, from ahead, the riding space; and

a storage box disposed in a bonnet chamber covered with the bonnet;

wherein the storage box includes a box body having an open upper end,

and a detachable box cover disposed substantially flush with the bonnet and covering, from above, the box body, and the box cover is positioned behind a lower end of the windshield,

wherein the ROPS includes a pair of front pillars extending upward from respective ends in a vehicle width direction of the bonnet, and a front beam coupling upper ends of the front pillars, and the windshield has lateral ends in the vehicle width direction and an upper end supported by the front pillars and the front beam, respectively, and

wherein the box cover has a front edge positioned ahead of the lower front portion of the ROPS in a vehicle side view, and the lower end of the windshield has a convex shape projecting forward from the lower front portion of the front pillars of the ROPS in a planar view.

8. The utility vehicle according to claim 7 , wherein the front pillars each have a circular arc shape curving convexly upward and forward in a vehicle side view, and the windshield projects forwardly by an amount from the front pillars, the amount gradually increasing from the upper end to the lower end of the windshield.