Fluid sprinkling – spraying – and diffusing – Mobile distributor – Irrigation device
Patent
1987-06-19
1989-01-03
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Mobile distributor
Irrigation device
239737, 239739, A01G 2509, B05B 318
Patent
active
047950994
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national phase application of PCT/AT 86 00073 file Nov. 10, 1986 and based, in turn, upon an Austrian National application A 3277/85 filed Nov. 10, 1985.
FIELD OF THE INVENTION
The invention relates to a correction steering for a linearly movable irrigation system, consisting of interconnected pipes carried by motorized irrigation towers, whereby at least one irrigation tower constitutes a steering unit for correcting the angular displacement occurring in the irrigation system with reference to a guideway, which is automatically detected by sensing elements located on a horizontal bar arranged parallel to the guideway in the area of the irrigation tower having the steering unit, these sensors being in an operative connection with the guideway.
BACKGROUND OF THE INVENTION
Sprinkler systems of this kind usually having a steering unit and several successively connected outriggers, whereby the steering unit is mostly laterally arranged and serves for steering correction, i.e. the correction of a deviation from the guideway, while the outriggers adjust their mutual advance via a directional steering.
A linearly movable irrigation system is known from the German open application No. 2 851 425, which follows via a sensor arrangement an underground electrical conduit path, and is provided with means to stop the propulsion of the outrigger which is the most extreme at the moment, in case of deviation from the path. The sensor arrangement is mounted on a horizontal bar, which in turn is rigidly connected with the outrigger, preferably at an angle of 90.degree.. The reference point determining the position of the sprinkling system is fixed from the point of view of its position with respect to the sprinkler pipe.
Further, it is proposed to support the bar at the outrigger arm at the irrigation tower so that it is rotatable about a vertical axis, for an oscillating motion and to slidably guide its free end along a guiding means arranged at the margin of the field (rail, cable, etc.). The bar's angle of rotation measures the deviation. An angle sensor located in the area of the axis of rotation detects each deviation from the right angle and transmits the steering order to the irrigation tower which is the most extreme at the moment. These two steering modes presume that the outrigger or the irrigation tower to which the bar is mounted, deviates. This deviation is especially critical when this outrigger is the one with the steering unit and the thereon mounted heavy equipment and is at the same time, the most extreme element of the irrigation system.
Depending on the direction of travel and the kind of deviation reading of the sensor mechanism, one of the two most extreme irrigation towers is immobilized and becomes thereby the rotation point for the continuously moving irrigation system, which can execute a turning motion. In the course of this turning motion, the error (twisting or lateral deviation) is compensated and the completion of the correction is again detected by the sensing device, whereafter the immobilized tower receives the order to continue its travel. It is possible that in the case of gross deviations of the actual travel path from the desired one it is necessary to perform several successive corrections, until the correction operation is concluded.
The mentioned outrigger is used as a stationary steering tower of a pivot-irrigation system, based on the steering characteristics shown in the German open application No. 3 049 436; the whole system revolves about this tower until the orientation has been again set on its path corrected. Due to the heavy weight, the wheels of the steering unit sink into the softened ground during the sprinkling operation and produce ruts, which after the conclusion of the sprinkling operation dry and harden. When the system travels back to its starting position at the field's end, without sprinkling, the wheels move in the formed rut, cannot deviate laterally and travel like on tracks. As a result, the s
REFERENCES:
patent: 3613703 (1971-10-01), Stout
patent: 3974845 (1976-08-01), Indresaeter
patent: 4172551 (1979-10-01), Johnson
patent: 4184639 (1980-01-01), Miller
patent: 4190068 (1980-02-01), Beusch et al.
patent: 4284240 (1981-08-01), Courtright et al.
patent: 4330085 (1982-05-01), Siekmeier et al.
patent: 4350295 (1982-09-01), Gheen
patent: 4358055 (1982-11-01), Reinke
Stadler Vinzenz
Wolfbauer Wilhelm
Dubno Herbert
Jones Mary Beth O.
Kashnikow Andres
Rohren - Und Pumpenwerk Rudolf Bauer Aktiengesellschaft
LandOfFree
Correction steering for a linearly movable irrigation system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Correction steering for a linearly movable irrigation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correction steering for a linearly movable irrigation system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2164273