| 摘要 |
PROBLEM TO BE SOLVED: To provide a water spray head which is simple in structure, and can adjust a vertical component of a discharge angle of long-range heads with out changing a discharge angle of a short-range head. SOLUTION: This water spraying head includes a short-range head arranged at a lower edge of a head body, and a plurality of long-range heads arranged on discharge headers each having an axial center extending at right angles with respect to an axial center of the head body, and also includes an angle adjusting device at a location between the head body and the header, for adjusting elevation angles of the respective long-range heads. The angle adjusting device is formed of parallel screw portions equipped with a detent and a viscous sealing material, or formed of a union joint. The axial centers of the respective long-range heads form varied angles of aperture with respect to a reference radial direction, i.e., a front face, of the head body, and the axial center of the discharge header is set to an angle equal to a mean angle of aperture of the axial centers of the long-range heads arranged on the header concerned plus 90 deg.. Therefore, even if the elevation angle of the long-range heads is adjusted, the rates of change in the discharge angels of the two long- range heads are rendered equal to each other.
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