| 摘要 |
AN ELECTRIC FAN INCLUDES A MOTOR (10) TWO BLADE UNITS (20), AND TWO ENGAGING UNITS (50) . THE MOTOR (10) HAS A MOTOR SHAFT (11) THAT DEFINES AN AXIS (L) AND THAT HAS TWO AXIALLY OPPOSITE END SEGMENTS (111). EACH OF THE END SEGMENTS (111) HAS AN ENGAGING REGION (113). THE ENGAGING REGIONS (113) OF THE END SEGMENTS (111) ARE DISPOSED AT ANGULARLY OPPOSITE POSITIONS RELATIVE TO THE AXIS (L). EACH OF THE BLADE UNITS (20) INCLUDES A HUB (21) THAT IS SLEEVED ON A RESPECTIVE ONE OF THE END SEGMENTS (111). EACH OF THE ENGAGING UNITS (50) INCLUDES A FIRST ENGAGING MEMBER (51) PROVIDED ON THE ENGAGING REGION (113) OF A RESPECTIVE ONE OF THE END SEGMENTS (111), AND A SECOND ENGAGING MEMBER (52) PROVIDED ON THE HUB (21) OF A RESPECTIVE ONE OF THE BLADE UNITS (20) AND ENGAGING THE FIRST ENGAGING MEMBER (51) THE MOST ILLUSTRATED DRAWING IS
|
