Concrete leveling machine

A concrete leveling machine for leveling a surface of laid concrete comprising:

• a leveling unit having adjustable longitudinal and lateral attitudes, for leveling the surface of said laid concrete, and including
• i) first and second ends, each of said ends having an adjustable height,
• ii) first attachment means for adjusting said lateral attitude by adjustment of the height of each end of the leveling unit, and
• iii) a second longitudinal attachment means for controlling the longitudinal attitude of the leveling unit,
• wherein the first attachment supports the leveling unit;
• a control means for adjusting the lateral and longitudinal attitude of the leveling unit to a desired level for the surface of said laid concrete, and including
• i) a reference laser transmitter positioned near an area to be leveled,
• ii) a level laser detector connected to said leveling unit to detect any difference in level between said leveling unit and a level set by said laser transmitter,
• iii) a first control unit to convert a signal from said level laser detector to an appropriate signal to operate said first attachment means and to change the height of each end of said leveling unit to produce a desired surface level,
• iv) a longitudinal attitude laser detector connected to the leveling unit to detect the longitudinal attitude thereof, and
• v) a second control unit to convert a signal from said longitudinal attitude laser detector to an appropriate signal to drive said second, longitudinal attachment means to change the attitude of said leveling unit in a longitudinal plane;
• a main platform;
• a plurality of wheels arranged on each side of a center line of said main platform;
• a wheel support to allow said wheels to move independent of said main platform and maintain a constant vertical load on said wheels;
• a drive motor and transmission for rotating each wheel so as to move said concrete leveling machine over the surface of said laid concrete while the leveling unit levels the surface of the concrete;
• and
• stabilizers connected to and arranged underneath said main platform and on each side of said center line of the main platform.

A concrete leveling machine for leveling a surface of concrete laid over a multitude of regularly spaced reinforcing rods, comprising:

• a leveling unit having an adjustable inclination, for leveling the surface of said laid concrete;
• a control means for adjusting the inclination of the leveling unit to a desired level for the surface of said laid concrete;
• a main platform;
• a plurality of wheel arranged on each side of a center line to said main platform;
• a wheel support to allow said wheels to move independent of said main platform and maintain a constant vertical load on said wheels;
• a drive motor and transmission for rotating each wheel so as to move said concrete leveling machine over the surface of said laid concrete while the leveling unit levels the surface of the concrete;
• and
• stabilizers connected to and arranged underneath said main platform and on each side of said center line of the main platform;
• wherein each of the wheels includes a multitude of peripheral, protruding teeth to grip the spaced reinforcing rods to facilitate rotating the wheels thereover, so that the wheels can rotate and run on the laid concrete.