Title:
ELECTRIC VACUUM CLEANER
Document Type and Number:
Japanese Patent JP3008948
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely prevent a hose from twisting during cleaning work.
SOLUTION: A rotary pipe 26 freely rotatably fitted to an insertion pipe 17 is provided, rails 41-44 are disposed on the outer periphery of the rotary pipe 26, contact pieces 63-66 are disposed to the oblong hole 68 of the insertion pipe 17 and the contact pieces 63-66 are brought into contact with the peripheral surface of the rails 41-44. When the rotary pipe 26 is rotated so as to dissolve the twist of the hose attached to the tip side of the rotary pipe 26, since it is rotated while the contact pieces 63-66 are in contact with the peripheral surface of the rails 41-44, the twist of the hole is prevented while securing electric connection between them.
Inventors:
Kimiyoshi Kato
Akitoshi Kawasaki
Akitoshi Kawasaki
Application Number:
JP4255299A
Publication Date:
February 14, 2000
Filing Date:
February 22, 1999
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
A47L9/24; A47L9/28; (IPC1-7): A47L9/24; A47L9/28
Domestic Patent References:
| JP63192413A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)