Fluid sprinkling – spraying – and diffusing – Mobile distributor – Track or guideway
Patent
1993-12-03
1994-11-08
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Mobile distributor
Track or guideway
239754, 239227, 404 90, B28D 122, E01C 2312, E21C 2560, B05B 314
Patent
active
053619935
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION AND PRIOR ART
The present invention relates to a device for material removing processing of a material layer. Although the layer may consist of another material, concrete layers are preferably intended here. The processing is intended to primarily have the purpose to remove weakened material from the layer. It may be the question of removing weakened concrete from concrete layers of walls, bridges and all kinds of other building constructions, whereupon the concrete removed may be replaced by a new one. The high pressure fluid is preferably constituted by water.
Such devices are known per se. As examples of the prior art reference may be made to the Swedish patent publications 451 742 and 461 535. The prior art has the disadvantage that the control of the movements of the jet tube is defective, so that a more or less uneven processing result is obtained on the concrete layer. It should here be underlined that it is essential that defective material is really removed but on the other hand unnecessary material volumes should for economical reasons not be removed, since this raises the cost for the subsequent application of new material. The movements of the jet tube are according to the prior art controlled especially in the region of the end positions of the carriage but also for the rest so that the regularity mentioned above concerning the processing occurs.
SUMMARY OF THE INVENTION
The object of the present invention is to show constructive measures for developing a device so that an improved evenness is obtained as far as the material removing processing is concerned over the entire layer surface to be processed.
By means of the solution of the invention, an even processing effect is obtained in the region of the two end positions of the carriage owing to the fact that the jet tube is arranged to be brought into pivoting movement for returning substantially simultaneously as the carriage stops in its end position, wherein the carriage is arranged to be put into movement again, namely in the direction towards its second end position substantially simultaneously as the jet tube terminates its pivoting. The pivoting of the jet tube and the movement of the carriage are carried out with such velocities that the nozzle of the jet tube will move along the longitudinal direction of the guide during substantially the entire turning operation.
The development ensures the even processing effect on the material layer by an oscillating movement of the jet tube in such a way that the nozzle will move to and fro in a direction substantially transversal with respect to the guide while a carriage moves therealong.
Further preferred developments of the inventional idea are defined herein below.
BRIEF DESCRIPTION OF THE DRAWINGS
With reference to the appended drawings, below follows a specific description of an embodiment of the invention cited as an example.
In the drawings:
FIG. 1 is a schematic perspective view of the device according to the invention,
FIG. 2 and 3 are schematic perspective views illustrating the carriage carrying the jet tube of the device, wherein the movement pattern of the jet tube is also illustrated,
FIG. 4 and 5 are schematic views of the jet tube, which is illustrated in its two extreme positions and seen perpendicularly to the guide,
FIG. 6 is a schematic view of the jet tube seen substantially parallel to the guide, wherein an oscillating mechanism for the jet tube is indicated, and FIG. 7 is a circuit diagram.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
The device according to the invention comprises a carrier 1, which here has the character of a vehicle movable on the underlayer, for instance a layer of concrete, which is to be processed. The vehicle is here indicated as being of the track type with two driving tracks 2. The vehicle is as indicated by the arrows 3 and 4 movable in opposite directions.
On the vehicle 1 there are arranged a longitudinal guide 5 and a carriage 6 movable to and fro along this guide and carrying a jet tube 7 for directing a hi
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Product description "Upgrading Kit Conjet".
Copy of letter dated Apr. 25, 1988 to Alan Weiner, from Christer Nohle.
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Drawings (FIGS. 8 & 8b).
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Aquajet Systems AB
Grant William
Kashnikow Andres
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