Method for marking grass fields and apparatus for applying such method
First Claim
1. A method for marking grass fields, comprising the steps of directing a part of the blades of the grass surface in one direction, and directing or leaving at least another part of the blades to be directed in at least one other direction so that at least one of the parts forms a marking on the grass, wherein the step of directing the blades of at least the part of the grass surface comprises the step of directing blades by blade directing means, further comprising the steps of dividing a model of the image into several points, dividing the grass surface into several sectors, and operating the blade directing means on the grass in connection with the position of said blade directing means on sectors which correspond to points of the model of the image.
5 Assignments
0 Petitions
Accused Products
Abstract
An advertising display method involves marking grass sports fields by bending the grass blades in definite zones and bending or leaving them straight in other zones in order to form an image or a word. The difference in the direction given to the grass blades is quite visible to the spectator. The grass blades are directed by means of an apparatus mounted on rollers which runs on the grass surface. The apparatus also has brushes and/or additional rollers which rotate to straighten the grass blades on definite sectors. The sectors form an image or the letters of a words. The engines which drive the apparatus and the brushes and/or rollers are electrical and are controlled by a computer. The image or word to represent on the grass, as well as the position of the apparatus on the surface to work, are entered in the memory of a computer.
30 Citations
24 Claims
- 1. A method for marking grass fields, comprising the steps of directing a part of the blades of the grass surface in one direction, and directing or leaving at least another part of the blades to be directed in at least one other direction so that at least one of the parts forms a marking on the grass, wherein the step of directing the blades of at least the part of the grass surface comprises the step of directing blades by blade directing means, further comprising the steps of dividing a model of the image into several points, dividing the grass surface into several sectors, and operating the blade directing means on the grass in connection with the position of said blade directing means on sectors which correspond to points of the model of the image.
- 14. Apparatus for marking grass fields, comprising wheels arranged to move the apparatus, blade directing means selected from the group consisting of brushes and rollers for directing blades of grass, means for lowering the blade directing means down to the grass and raising the blade directing means from the grass, further comprising a computer into which is input a model of an image to mark on the grass surface, means for determining a position on the apparatus on the grass surface, and means for moving at least some of the blade directing means so that a part of the blades of the grass surface is directed in a direction which is different from that of the other grass blades, whereby at least a part of the grass surface constitutes at least one image which corresponds to that which is entered in the computer.
Specification