초록 ▼

A wheeled concrete screeding device includes a wheeled unit having wheels for movably supporting a frame portion, and a screed head supported at the frame portion and following behind the wheeled unit when the wheeled unit is moved in a screeding direction. The screed head includes a grade establish

A wheeled concrete screeding device includes a wheeled unit having wheels for movably supporting a frame portion, and a screed head supported at the frame portion and following behind the wheeled unit when the wheeled unit is moved in a screeding direction. The screed head includes a grade establishing element and a vibratable member. The grade establishing element is generally vertically adjustable responsive to a signal from a laser receiver disposed at the screed head to establish a struck-off surface of the uncured concrete at a desired grade. The vibratable member is adjustably attached at the grade establishing element and the vibratable member at least partially floats behind the grade establishing element on the struck-off surface of the uncured concrete and is at least partially supported at the struck-off surface of the uncured concrete as the wheeled unit is moved in the screeding direction.

대표청구항 ▼

The embodiments of the invention in which an exclusive property right or privilege is claimed are defined as follows: 1. A wheeled concrete screeding device for screeding uncured concrete, said wheeled concrete screeding device comprising:a wheeled unit having at least two wheels for movably support

The embodiments of the invention in which an exclusive property right or privilege is claimed are defined as follows: 1. A wheeled concrete screeding device for screeding uncured concrete, said wheeled concrete screeding device comprising:a wheeled unit having at least two wheels for movably supporting a frame portion of said wheeled unit, said frame portion having a forward end and a rearward end, wherein said wheeled unit is movable through uncured concrete in a screeding direction;a screed head supported at said rearward end of said frame portion and following behind said wheeled unit when said wheeled unit is moved in said screeding direction, said screed head comprising a grade establishing element and a vibratable member;wherein said grade establishing element is generally vertically adjustable responsive to a signal from a laser receiver disposed at said screed head to establish a struck-off surface of the uncured concrete at a desired grade when said wheeled unit is moved in said screeding direction; andwherein said vibratable member is adjustably attached at a rearward end of said grade establishing element and wherein said vibratable member at least partially floats behind said grade establishing element on the struck-off surface of the uncured concrete and is at least partially supported at the struck-off surface of the uncured concrete as said wheeled unit is moved in said screeding direction.