Sprinkler head
First Claim
1. Sprinkler head comprising a sprinkler body (1) with an inlet (2) and an outlet (3), a sprinkler base (4), which is detachably fastened at the sprinkler body (1) and closes the outlet (3), and a rubber-elastic nozzle plate (11) which contacts a fixed supporting plate (8) of the sprinkler base (4) and comprises a plurality of elastic nozzle projections (12) which engage in corresponding receiving bore holes (9) of the supporting plate (8), have a greater axial length than the respective receiving bore holes (9) of the supporting plate (8) and whose elastically deformable ends project over the outer surface (14) of the supporting plate (8) also when not acted upon by the pressure of liquid, characterized in that the nozzle projections (12, 12'"'"') have spray-forming output ends which are constructed so as to be thick-walled to withstand ordinary water pressures, the cross-sectional area formed by the outer diameter at the output end of the nozzle projections (12, 12'"'"') being approximately 7 to 10 times greater than the outlet cross-sectional area formed by the inner diameter of a spray outlet opening, but are externally deformable by hand for removal of external furring at the output ends of the nozzle projections wherein the nozzle plate (11, 11'"'"') and the nozzle projection (12, 12'"'"') are formed so as to form one piece shaped from a rubber-elastic material having a Shore hardness of approximately 40 to 50, and wherein the elastically hand-deformable ends of the nozzle projections (12, 12'"'"') project over the outer surface (14, 14'"'"') of the supporting plate (8, 8'"'"') by an amount corresponding to approximately one to two times the outer diameter of the nozzle projections.
1 Assignment
0 Petitions
Accused Products
Abstract
In a sprinkler head comprising a sprinkler body (1) and a sprinkler base (4), the nozzle wall of the sprinkler base (4) is the fixed supporting plate (8) of a rubber-elastic nozzle plate (11) resting on it. The nozzle plate (11) comprises a plurality of elastic nozzle projections (12) formed on it which engage in receiving bore holes (9) of the supporting plate (8). The axial length of the elastic nozzle projections (12) in relation to that of the receiving bore holes (9) is such that their elastically deformable ends always project beyond the outer surface (14) of the supporting plate (8). Furring of the nozzle projections can easily be removed by exerting a slight external force on the elastically deformable ends. Nevertheless, the spray-forming outlet ends of the nozzle projections (12) are so thick-walled and of such material quality that they withstand ordinary water pressures and therefore have good spray guidance properties.
169 Citations
11 Claims
- 1. Sprinkler head comprising a sprinkler body (1) with an inlet (2) and an outlet (3), a sprinkler base (4), which is detachably fastened at the sprinkler body (1) and closes the outlet (3), and a rubber-elastic nozzle plate (11) which contacts a fixed supporting plate (8) of the sprinkler base (4) and comprises a plurality of elastic nozzle projections (12) which engage in corresponding receiving bore holes (9) of the supporting plate (8), have a greater axial length than the respective receiving bore holes (9) of the supporting plate (8) and whose elastically deformable ends project over the outer surface (14) of the supporting plate (8) also when not acted upon by the pressure of liquid, characterized in that the nozzle projections (12, 12'"'"') have spray-forming output ends which are constructed so as to be thick-walled to withstand ordinary water pressures, the cross-sectional area formed by the outer diameter at the output end of the nozzle projections (12, 12'"'"') being approximately 7 to 10 times greater than the outlet cross-sectional area formed by the inner diameter of a spray outlet opening, but are externally deformable by hand for removal of external furring at the output ends of the nozzle projections wherein the nozzle plate (11, 11'"'"') and the nozzle projection (12, 12'"'"') are formed so as to form one piece shaped from a rubber-elastic material having a Shore hardness of approximately 40 to 50, and wherein the elastically hand-deformable ends of the nozzle projections (12, 12'"'"') project over the outer surface (14, 14'"'"') of the supporting plate (8, 8'"'"') by an amount corresponding to approximately one to two times the outer diameter of the nozzle projections.
Specification