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A riding lawn mower has wheels which are spring suspended from the chassis and a floating-type cutter deck hangs from the chassis. When a wheel moves upwardly relative to the chassis, as occurs when the wheel goes across a bump or when the chassis leans in a turn, a nearby portion of the cutter deck

A riding lawn mower has wheels which are spring suspended from the chassis and a floating-type cutter deck hangs from the chassis. When a wheel moves upwardly relative to the chassis, as occurs when the wheel goes across a bump or when the chassis leans in a turn, a nearby portion of the cutter deck is lifted upwardly in response. In one embodiment, the drive wheels are independently spring suspended rear wheels and the cutter deck is mounted between the front and rear wheels. On each side of the machine a chain runs from a lifting bracket attached to each rear wheel motor mount and runs down to the rear end of the deck. So, when a wheel moves upwardly the deck is moved upwardly. In another embodiment, the front wheels are the spring suspended drive wheels and the cutter deck is cantilevered from the front end of the machine. The rear end of the cutter deck is lifted upwardly upon upward wheel motion.

대표청구항 ▼

[ I claim:] [1.] A lawn mower comprising:a chassis having a first end and a second end;first and second first wheel assemblies, on opposing sides of the first end of the chassis, for supporting the mower on a lawn surface; each wheel assembly comprised of a wheel; each wheel assembly spring suspende

[ I claim:] [1.] A lawn mower comprising:a chassis having a first end and a second end;first and second first wheel assemblies, on opposing sides of the first end of the chassis, for supporting the mower on a lawn surface; each wheel assembly comprised of a wheel; each wheel assembly spring suspended from the chassis for movement up and down relative to the chassis;two second end wheels mounted at the second end of the chassis, for supporting the mower on the lawn surface;a cutter deck having a first end and second end, each corresponding in orientation with the ends of the chassis, one cutter deck end suspended from the chassis;a plurality of suspenders for suspending the cutter deck at a predetermined elevation relative to the chassis, wherein a portion of the cutter deck is vertically movable upward in response to an upward force, and wherein the cutter deck is vertically movable downward to said predetermined elevation under force of gravity; andat least one of the suspenders connected to the second first wheel assembly wherein a position of the cutter deck is responsive to movement of a portion of the second first wheel assembly.