Fluid sprinkling – spraying – and diffusing – Motor or spray fluid operated continuously moving discharge... – Spray fluid operated
Patent
1995-05-02
1997-07-15
Morris, Lesley D.
Fluid sprinkling, spraying, and diffusing
Motor or spray fluid operated continuously moving discharge...
Spray fluid operated
239394, 239447, B05B 134
Patent
active
056475373
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This is a national phase of PCT/EP93/02935 filed Oct. 23, 1993 and based, in turn, on Austrian application A 2204/92 filed Nov. 9, 1992 under the International Convention.
FIELD OF THE INVENTION
The invention relates to a multifunction shower head with a housing, a fixed nozzle plate, and a rotatable nozzle shutter in which is set a screen disk and which is fixed to an adjustment ring.
BACKGROUND OF THE INVENTION
Shower fixtures of high quality nowadays have, among other things, the capacity of being set to produce different sprays from the shower head. In this manner the strength of the water spray and the amount of admixed air can be set and a massage effect can be achieved.
With the hitherto known shower heads of this type the different types of spray are produced by several nozzle plates which are shifted relative to each other. The disadvantage of this is the large bulk caused by the complicated construction and the different number of jets with different functions. This is in particular true for shower heads that are capable of pulsating operation. Mainly the individual functions are taken care of by different regions in the closing shutter of the shower head, that is the entire surface of the closing shutter is never used.
OBJECTS OF THE INVENTION
It is an object of the invention to provide a shower head that can be set for several sprays, in particular with at least one pulsating spray, and which does not have the above-described disadvantages.
This object is attained in that between the housing and the nozzle plate there is provided a guide plate with throughgoing passages and a wheel with radially extending and annularly arranged vanes, apertured regions, and blocking regions. The water is directed by the throughgoing passages to the wheel to set it in rotation. The apertured regions and the blocking regions of the wheel rapidly cover and uncover the underlying openings of the nozzle plate as the wheel rotates so that a pulsating spray is produced. Rotating the nozzle shutter relative to the nozzle plate can also change the water spray.
The throughgoing passages in the guide plate extend skew between inlet openings on the outer face turned toward the housing and angularly offset outlet openings on the outer face turned toward the wheel so the flow direction of the water streams exiting the throughgoing passages already have a tangential component relative to the wheel and thus ensure its rotation.
Advantageously the multifunction shower head can also have several types of spray without pulsation. To this end a lift ring is provided between the screen disk and the nozzle plate which is provided on one side with angled projections which slide on an annular collar of the nozzle plate provided with steps and which is provided on the other side with pins for arresting the wheel in a raised position of the lift ring, that is when the angled projections are on the steps of the annular collar. Rotation of the nozzle shutter relative to the lift ring moves the angled projections on the lift ring into a lowered position, that is between the steps to free the wheel to form a pulsating spray, or into a raised position, that is on the steps, to arrest the wheel and produce a continuous water spray. Further rotation can, e.g., admix air. Both the pulsating and the continuous water spray is distributed over the entire nozzle shutter surface.
Preferably the pins of the lift ring extend through the nozzle plate and engage in the raised position of the lift ring against the wheel and lift it, the opposite surface of the wheel being formed with a ring of teeth which engage in a ring of teeth provided on the guide plate. The spacing between the wheel and the nozzle plate is in this case increased by lifting the wheel to make possible a uniform throughflow of the nozzle plate even in the regions under the covered regions of the wheel.
The lift ring has radial elastic projections whose outer ends engage the nozzle plate and which are elastically deformed in the raised
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patent: 5201468 (1993-04-01), Freier et al.
patent: 5356077 (1994-10-01), Shames et al.
patent: 5467927 (1995-11-01), Lee
Dubno Herbert
Ideal-Standard GmbH
Morris Lesley D.
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