| 摘要 |
PROBLEM TO BE SOLVED: To provide a round type register of a comparatively simple structure, capable of changing the wind direction in the optional direction by a stable operation load.SOLUTION: A partially concave spherical surface 11 is formed on an inner peripheral surface of a retainer 1, and a partially convex spherical surface 3a is formed on an outer peripheral surface of a cylindrical frame 3. A pair of sliding grooves 12 and 13 are formed in substantially parallel to the center line in opposed positions in the inner peripheral surface of the retainer 1. Louver support shafts 28 and 29 projected on the outer peripheral surface of the cylindrical frame 3 respectively slidably and rotatably engage with the sliding grooves 12 and 13. Projections 34 and 35 are projected on the outer peripheral surface of the cylindrical frame 3 so as to be capable of contacting with the inner peripheral surface of the retainer 1. When rotatably operating the whole rotary louver 2 in the vertical-lateral optional direction, the rotary louver 2 rotates around the louver support shafts 28 and 29, and the louver support shafts 28 and 29 move in the sliding grooves 12 and 13, and the whole rotary louver rotates around a center point on the center line. |
