Mobile floor grinding vehicle
First Claim
1. A mobile floor grinding vehicle comprising a vehicle body having two sides and movable in a predetermined direction of travel over a floor, a rigid support arm mounted pivotally to each side of said vehicle body and having a free end, a grinding tool being mounted at the free end of each of said pivotally mounted support arms, drive means for driving each grinding tool to grind the floor to a desired contour, means coupled to the support arms for operating the support arms to position the grinding tools in respective grinding positions on the floor, so that a pair of parallel tracks may be formed in the floor by said grinding tools to a said desired contour, means for providing a set of values representative of said desired contour and control means for controlling the grinding depth of each grinding tool with respect to the floor in response to predetermined signals derived from said set of values.
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Accused Products
Abstract
A mobile floor grinding vehicle for grinding a floor to a predetermined level and provided with one or more grinding heads which can be continuously adjusted as the vehicle is moved over a floor to maintain the grinding surface of the heads at a fixed position corresponding to the contour to be ground in the floor. Positional control of the heads is effected either by a laser beam from a laser source positioned remote from the vehicle and providing a datum level against which the operative position of the grinding heads is continuously monitored and adjusted using laser beam responsive sensors, or by means of signals generated by an on-board computer which vary in accordance with the initial contours of the floor measured against its desired contours and pre-programmed into the computer.
36 Citations
12 Claims
- 1. A mobile floor grinding vehicle comprising a vehicle body having two sides and movable in a predetermined direction of travel over a floor, a rigid support arm mounted pivotally to each side of said vehicle body and having a free end, a grinding tool being mounted at the free end of each of said pivotally mounted support arms, drive means for driving each grinding tool to grind the floor to a desired contour, means coupled to the support arms for operating the support arms to position the grinding tools in respective grinding positions on the floor, so that a pair of parallel tracks may be formed in the floor by said grinding tools to a said desired contour, means for providing a set of values representative of said desired contour and control means for controlling the grinding depth of each grinding tool with respect to the floor in response to predetermined signals derived from said set of values.
- 6. A mobile floor grinding vehicle comprising a vehicle body movable in a predetermined direction of travel over a floor, a pair of grinding tools supported by the body placed with a spacing in between them, drive means for driving each grinding tool to grind the floor to a desired contour, means for providing a set of values representative of said desired contour and control means for controlling the grinding depth of each grinding tool with respect to the floor in response to a predetermined signal derived from said set of values, each grinding tool being mounted on a transverse beam mounted for reciprocating movement on the vehicle body by said control means so as to vary the position of the grinding tool with respect to the floor to be ground, and wherein said transverse beam is telescopic thereby to vary the transverse distance or spacing between the grinding tools mounted thereon.
Specification