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US 2005/0029231 A1Published application
Drilling apparatus for drip irrigation tubes
AssigneeEberhard Kertscher
InventorsEberhard Kertscher, Thomas Bernauer
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AssigneeEberhard Kertscher
InventorsEberhard Kertscher, Thomas Bernauer
Estimating the term…
A drilling apparatus for making holes in a tube body in the area of metering elements comprises drilling means which are disposed on a framework. Via sensor means, the position of the metering elements in the tube body are ascertained. Based upon a signal triggered thereby, the drilling operation is carried out. For this purpose, the tube body is led over a roller which is rotatingly held on the framework. The tube body to be drilled wraps around the roller around an area and is then led away. In this wrap-around area, in which the tube body rests upon the roller, the position of the metering means in the tube body is ascertained by the sensor means; the holes can then be made. The making of these holes can take place very precisely since the tube body cannot undergo any longitudinal stretching when it is resting on the roller.
Drilling apparatus for drip irrigation tubes, comprising drilling means disposed on a framework, feeding means by means of which the extruded drip irrigation tubes provided with metering elements can be fed to the drilling means for making the holes in the tube body in the area of the metering elements and thereafter be taken away therefrom, sensor means for ascertaining the position of the metering elements in the tube body, as well as control means for controlling the drilling operation, wherein a roller rotatable about an axis of rotation is affixed in the framework, on which roller the tube body supplied, pressed flat after extrusion and insertion of the metering elements, is laid, it wraps around at least one area of the roller and is then carried away, that in the wrap-around area in which the tube body rests upon the roller, the position of the metering means in the tube body is ascertainable by means of the sensor means, and the holes can be made by the drilling means.
Dependencies are inferred from the claim text.