| 摘要 |
Disclosed is an electric roll curtain apparatus (A) which uses a common curtain head rail (2) and a roll shaft rod (4) for a curtain, and safely and firmly supports a heavy cylindrical electric motor (6). The electric roll curtain apparatus (A) comprises a common curtain head rail (2) having a front cover (2a); a roll shaft tube (4) widely used together with the common curtain head rail (2); and shaft brackets (10, 12), having an inner shaft protruding rod (11) formed with a nylon-based synthetic resin material, fastened and fixed to left and right ends of the common curtain head rail (2) to support and fix the cylindrical electric motor (6) embedded in the roll shaft tube (4). A drive wheel (8) of the cylindrical electric motor (6) inserted into the roll shaft tube (4) is locked to an inward-protruded part (4b) of a slit connection groove (4a) to which a curtain (14) is connected so as to enable the roll shaft tube (4) to be rotated by driving the driver wheel (8). A bearing piece (16) having a rotary shaft hole (16a) fitted to the shaft protruding rod (11) of the shaft bracket (10) fixed to one end of the common curtain head rail (2) is fitted and fixed to an end of the roll shaft tube (4) at a drive wheel (8) side, and a crown (18) having a limit adjuster (18a) for adjusting a vertical operation length of the curtain (14) is fastened to the head part (6a) of the cylindrical electric motor (6). A fitting groove (20) fitted and fixed to the inner shaft protruding rod (11) of the shaft bracket (12) fixed to the other end of the common curtain head rail (2) supporting the head part side of the cylindrical electric motor (6) is formed at the crown (18). |
