| 摘要 |
PURPOSE:To control looseness of a floor cylinder occurring due to a decrease in elasticity of a carpet by fastening pawls of a ring to the carpet and screw- clamping a mounting collar plate at the ring. CONSTITUTION:Pawls 47 to be fastened to a carpet protrude from one side surface of a platelike ring 41. Fixing holes are formed at a mounting collar plate of a floor cylinder. Threaded holes 49 to be clamped with screws inserted into the holes are formed at the ring 41, the cylinder is engaged within an outlet box, and the plate is screw-clamped with the ring to be integrally fixed. |
