초록 ▼

A concrete saw is provided having an engine aligned along a longitudinal axis of the saw frame to minimize the width of the saw and provide a more balanced system. A clutch assembly is attached to a forward end of the engine to disengage the saw blade without stopping the engine. A right angle gear

A concrete saw is provided having an engine aligned along a longitudinal axis of the saw frame to minimize the width of the saw and provide a more balanced system. A clutch assembly is attached to a forward end of the engine to disengage the saw blade without stopping the engine. A right angle gear box is provided proximate the driven side of the clutch assembly to transfer driving rotational forces from the engine to a transversely aligned driven shaft. The driven shaft includes drive pulleys mounted upon opposite ends thereof, which are aligned with driven pulleys mounted upon opposite ends of a blade support shaft and linked to one another via multiple belts. This alignment evenly balances the load transfer while facilitating the use of vibration isolators between the engine, gear box and frame. A hydraulically controlled depth stop mechanism is included for setting a maximum cut depth. The engine speed is controlled by an electronic governor. A multi-speed transmission is included to afford high and low ranges for the saw. A single control lever is provided to shift between high and low ranges, between forward and reverse directions, and to raise and lower the saw.

대표청구항 ▼

[ What is claimed is:] [1.] A self-propelled concrete saw comprising:an engine and a saw blade driveably mounted thereto, said saw blade effecting a cut within said concrete to a desired cut depth;a body for supportably housing said engine and saw blade;front and rear wheels for supporting said body

[ What is claimed is:] [1.] A self-propelled concrete saw comprising:an engine and a saw blade driveably mounted thereto, said saw blade effecting a cut within said concrete to a desired cut depth;a body for supportably housing said engine and saw blade;front and rear wheels for supporting said body; anda lifting and depth stop assembly, securely mounted between said front wheels and said body, including a first cylinder to raise and lower a front end of said body and a second cylinder to set a minimum height to which said body is lowered, said minimum height corresponding to said desired cut depth, said lifting and depth stop assembly further including a front axle assembly having a forward end that rotatably receives said front wheels and having a rearward end pivotally hinged to said body, and said first and second cylinders being mounted to said front axle assembly proximate said rearward end to rotate said front axle assembly about said rearward pivot point to raise and lower the saw blade, wherein at least one of said cylinders is controllably set to contract to a predefined level, thereby preventing lowering of said saw blade below said desired cut depth.