Rotating tube concrete finisher
AssigneeAllen Engineering Corporation
InventorJ. Dewayne Allen
Life of this patent
Estimating the term…
Abstract
A rotating tube concrete finisher is controlled and driven by an end handle assembly including an internal combustion engine. An outrigger wheel unit is coupled to the end handle assembly to form a stable end support for the end handle assembly and to support the weight of the end handle assembly including the engine. A pair of end handle assemblies can be coupled to opposing ends of a cylindrical finishing roller and may be selectively operated to drive the finishing roller in either a first or a second direction of rotation. A winch system facilitates uphill and downhill translation of the concrete finisher on a sloping concrete surface and enables the system to be operated by one man without undue effort.
Claims16
A method for finishing an uphill to downhill sloping surface of an area of plastic concrete having upper and lower edges defining the length of said area and first and second load bearing side surfaces defining the width of said area, said method comprising:
- a. positioning an elongated cylindrical finishing roller having first and second ends, a longitudinal axis and a length exceeding the width of said area across the lower edge of said area with the first and second ends of said roller being supported by said first and second load bearing side surfaces of said area and the lower surface of said roller contacting the plastic concrete surface;
- b. gripping the first end of said roller with first rotary drive means and rotating said roller in a downhill climbing direction;
- c. providing a winch system spaced apart from said roller and including
- i. a first winch drum having a first winch cable coupled to first bearing means;
- ii. a second winch drum having a second winch cable coupled to second bearing means;
- iii. a winch stand for anchoring said winch system in proximity to the first edge of said area and for maintaining said first and second winch drums elevated above the surface of the plastic concrete;
- d. securing said winch system to a stationary object in proximity to the upper edge of said area;
- e. providing first and second bearing means for rotatably coupling the first and second winch cables to the first and second ends of said roller;
- f. operating said winch system to move said roller from the lower edge of said area uphill along the length of said area to the upper edge of said area;
- g. gripping the second end of said roller with second rotary drive means and rotating said roller in an uphill climbing direction;
- and
- h. operating said winch system to move said roller from the upper edge of said area downhill along the length of said area to the lower edge of said area.
Apparatus for finishing the surface of an area of plastic concrete placed within first and second spaced apart load bearing side surface defining the width of said area, comprising:
- a. an elongated cylindrical finishing roller supported by the first and second load bearing side surfaces of said area and having first and second ends, a longitudinal axis and a length exceeding the width of said area, the lower surface of said roller contacting the surface of said plastic concrete;
- b. an end handle having a length, upper and lower ends, and a lengthwise axis;
- c. first rotatable coupling means for rotatably coupling said end handle to the first end of said roller and for maintaining the lengthwise axis of said end handle oriented perpendicular to the longitudinal axis of said roller;
- d. first rotary drive means coupled to said end handle and to said roller for rotating said roller in a first direction to cause the rotating lower cylindrical surface of said roller to smooth and finish the plastic concrete surface;
- e. end handle support means coupled along the length of said end handle at a location spaced apart from the lower end of said handle and engaging the first load bearing side surface of said area for providing low friction engagement with the first load bearing side surface, for maintaining the lengthwise axis of said handle inclined at a fixed angle with respect to a vertically oriented axis extending through the first end of said roller, and for transferring a portion of the weight of said end handle/rotary drive means unit to the first load bearing side surface of said area;
- and
- f. traction means spaced apart from said roller, attached to a stationary object and including first and second cables coupled to said roller for exerting a traction force on the first and second ends of said roller to move said roller along the length of plastic concrete, said traction means including a winch system with
- i. a first winch drum having a first winch cable for exerting the traction force on the first end of said roller;
- ii. a second winch drum having a second winch cable for exerting the traction force on the second end of said roller;
- and
- iii. a winch stand for anchoring said winch system in proximity to the first end of said area and for maintaining said first and second winch drums elevated above the surface of the plastic concrete.
Apparatus for finishing an uphill to downhill sloping surface of an area of plastic concrete having upper and lower edges defining the length of said area and first and second load bearing side surfaces defining the width of said area, comprising:
- a. an elongated cylindrical finishing roller having first and second ends, a longitudinal axis and a length exceeding the width of said area, the lower surface of said roller contacting the surface of the plastic concrete;
- b. an end handle having a length, upper and lower ends, and a lengthwise axis;
- c. first rotatable coupling means for rotatably coupling said end handle to the first end of said roller and for maintaining the lengthwise axis of said end handle oriented perpendicular to the longitudinal axis of said roller;
- d. first rotary drive means coupled to said end handle and to said roller for rotating said roller in a first direction to cause the rotating lower cylindrical surface of said roller to smooth and finish the plastic concrete surface;
- e. traction means spaced apart from said roller and attachable to a stationary object in proximity to the upper edge of said area for exerting a traction force on the first and second ends of said roller to move said roller along the length of said area of plastic concrete, said traction means including a winch system with
- i. a first winch drum having a first winch cable coupled to first bearing means for rotatably interconnecting the first winch cable to the first end of said roller;
- ii. a second winch drum having a second winch cable coupled to said bearing means for rotatably connecting the second winch cable to the second end of said roller;
- and
- iii. a winch stand for anchoring said winch system in proximity to the first edge of said area and for maintaining said first and second winch drums elevated above the surface of the plastic concrete.
Dependencies are inferred from the claim text.