| 摘要 |
PROBLEM TO BE SOLVED: To improve operability and workability by providing a positioning means for a tank and a head to always match a connecting part of a duct hose with a switch surface. SOLUTION: A part of a lower end of a head 4 is turned down and formed in U-shape 8, and a form of a connecting part 7 for attaching/detaching a dust hose 6 of a tank 5 is made correspondent thereto, such that the surface of a switch 3 of the head 4 and the connecting part 7 for attaching/detaching the duct hose 6 of the tank 5 are always provided on the same straight line. COPYRIGHT: (C)2004,JPO
|
