Fluid sprinkling – spraying – and diffusing – Motor or spray fluid operated continuously moving discharge... – Spray fluid operated
Reexamination Certificate
1999-05-14
2001-03-06
Kashnikow, Andres (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Motor or spray fluid operated continuously moving discharge...
Spray fluid operated
Reexamination Certificate
active
06196475
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a rotor nozzle.
A rotor nozzle of this kind is known from DE 43 40 184 A1 and is used in particular in high pressure cleaning aggregates. In the known rotor nozzle the pan bearing can be displaced in the axial direction via a setting sleeve which surrounds the nozzle housing.
SUMMARY OF THE INVENTION
The problem (object) on which the invention is based is to create a rotor nozzle of the initially named kind which is simply constructed and easy to operate.
In accordance with the invention the connection member is connected to the nozzle housing such that it is sealed off and axially displaceable; and the connection member carries at its end facing the rotor a funnel-shaped fixing element for the centered holding of the rotor.
The connection member of the rotor nozzle in accordance with the invention consequently serves not only for the connection of the rotor nozzle to the infeed line for the cleaning liquid, but serves at the same time as a carrier for the fixing element. The construction of the rotor nozzle can thereby be kept very simple. In addition the rotor nozzle in accordance with the invention is distinguished by an ease of operation, since a user, who in practice mainly holds the rotor nozzle via a bar which is rotationally fixedly connected to the connection member and which forms the end piece of the infeed line, need merely move the nozzle housing axially relative to the connection member in order to change between a conical jet and a point or straight jet operation.
Moreover, through the invention the radial dimensions of the rotor nozzle can be kept small since the radial dimensions are determined only by the nozzle housing. As a result a compact and slender object is created with the invention with which it is also possible to work in restricted spaces and at poorly accessible locations.
Advantageous embodiments of the invention are described in the description, in the drawings and in the subordinate claims.
A particularly simple construction results when in accordance with a preferred embodiment of the invention the fixing element is designed in a single piece with the connection member. Here, with the connection member only a single component is required, through the axial movement of which relative to the nozzle housing a displacement of the fixing element is directly enabled.
It is particularly advantageous in accordance with a further embodiment of the invention when the connection member and the nozzle housing are screwed to one another so that the desired position of the fixing element can be achieved through a simple rotation of the nozzle housing relative to the connection member.
In accordance with a further embodiment the connection member comprises a carrier which is firmly connected to the nozzle housing, at which the fixing element is axially movably journalled and to which a connection ring is axially displaceably connected, with the connection ring cooperating with the fixing element via at least one slider element which is preferably designed to be pin-like.
This embodiment has the advantage that in addition to the connection ring no further components need be rotatably journalled.
In accordance with a further preferred embodiment the screw connection between the connection member and the nozzle housing or between the carrier and the connection ring respectively has a large thread pitch, through which the rotor nozzle in accordance with the invention can be reset rapidly and in particular with a single hand movement.
REFERENCES:
patent: 4133973A1 (1992-04-01), None
patent: 4340184A1 (1995-06-01), None
Bocanegra Jorge S.
Kashnikow Andres
Townsend and Townsend / and Crew LLP
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