Abstract: A lawn mower comprising a blade housing supported above the ground by wheels, and a blower case removably connected to one lateral side of the blade housing for blowing grass clippings toward a grass catcher disposed rearwardly of a vehicle body. The blade housing carries wheel support frames secured thereto and extending in a fore and aft direction of the vehicle body. A forward coupling and a rear coupling are secured to one of the wheel support frames for connecting the blower case to the blade housing.

Abstract: A four wheel steering tractor comprising a grass cutting system vertically movably mounted in a lower space of the tractor between front and rear wheels. The grass cutting system carries gauge wheels disposed at opposite lateral sides in rear regions thereof. An interlocking structure between a steering wheel and the front and rear wheels includes a front drag link extending from a pitman arm toward the left (or right) front wheel, and a rear drag link extending from the pitman arm toward the right (or left) rear wheel. This interlocking structure places the center of tractor turning approximately on a straight line extending through the gauge wheels and adjacent one of the gauge wheels.

Abstract: A device for attaching a working implement to the front of a running vehicle for performing work while following the ground comprises a pair of opposite inflexible links pivoted at their rear ends to the front of the vehicle. These inflexible links are movable upwardly or downwardly and each link has a front end for movably supporting the front portion of the implement about a lateral pivot. A pair of opposite suspenders are each mounted on a longitudinally intermediate portion of each link for suspending the rear portion of the implement, each of the suspenders including a rod assembly pivotally connectable to the implement's rear portion and a resilient member. The rod assembly is inserted in an upstanding state through the link and is movable axially thereof to thereby permit upward or downward movement of the implement's rear portion due to the movement of the implement about the pivot.