| 摘要 |
A DUST COLLECTING DIRECTION SWITCHING PORTION (9) IS PROVIDED AT A WALL AT THE BACK OF THE MAIN BODY (1) OF AN UPRIGHT TYPE VACUUM CLEANER. THE DUST COLLECTING SWITCHING PORTION HAVING A SWITCH VALVE (20) IS BRANCHED INTO THREE DIRECTIONS. THE BRANCH IN THE FIRST DIRECTION FORMS A DUCT (23A) FOR ALLOWING A COUPLING HOSE (11) TO BE FITTED TO A SUCTION OPENING DIRECTED TOWARD A FLOOR SURFACE, THE BRANCH IN THE SECOND DIRECTION FORMS A RIB (23B) COMMUNICATING WITH A DUST COLLECTING PORTION (7, 14) INSIDE THE VACUUM CLEANER, AND THE BRANCH IN THE THIRD DIRECTION FORMS A RIB (23C) ALLOWING A HOSE (12) TO COLLECT DUST AT A RELATIVELY NARROW SPACE BETWEEN PIECES OF FURNITURE. IN OPERATION, IN RESPONSE TO AN OPERATION OF A KNOB (10) RELATED TO THE SWITCH VALVE, THE SWITCH VALVE SWITCHES ONE OF THE FIRST AND THIRD DIRECTION DUCTS IN ASSOCIATION WITH THE OPERATION TO COMMUNICATE WITH THE RIB IN THE SECOND DIRECTION. (FIG. 4)
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