Title:
DEVICE FOR PREVENTING FOREIGN MATTER FROM STICKING TO TUBULAR INNER SURFACE
Document Type and Number:
Japanese Patent JP2738895
Kind Code:
B2
Abstract:
PURPOSE: To ensure that foreign matter is prevented from sticking to the inner surface of a tube properly with the help of an accelerated liquid flow on the tubular inner surface or a brush installed on a traveling truck by enabling the traveling truck to run easily, overcoming the flowing speed of a liquid on account of the rotating force of a propeller which rotates due to the liquid in the tube.
CONSTITUTION: The subject device for preventing foreign matter from sticking to the tubuler inner surface consists of two propellers 2, 3 2, 3 which rotate in a mutually opposite direction by the flow of a liquid in a tube A, and a traveling truck 1, having wheels 21, which runs in the tube, driven by the rotating force of the propellers 2, 3. The rotating force of either of the propellers 2, 3 is transmitted to a rotating shaft 6 by a clutch mechanism. In addition, the rotation of the rotating shaft 6 is transmitted to wheels 21 by a gear mechanism to move the traveling truck forward and backward.
Inventors:
SAKAI AKIRA
OOTA OSAMU
SATO TOMOAKI
UEDA KOJI
TANAKA JUZO
OKAMOTO YUKIHIKO
YOSHIDA TAKETOSHI
OOTA OSAMU
SATO TOMOAKI
UEDA KOJI
TANAKA JUZO
OKAMOTO YUKIHIKO
YOSHIDA TAKETOSHI
Application Number:
JP20456592A
Publication Date:
April 08, 1998
Filing Date:
July 08, 1992
Export Citation:
Assignee:
CHUBU DENRYOKU KK
NIPPON KOKAN KK
NIPPON KOKAN KK
International Classes:
B08B9/053; B08B9/04; B61B13/10; E02B1/00; (IPC1-7): B08B9/04; B61B13/10; E02B1/00
Domestic Patent References:
| JP52129183A | ||||
| JP2209694A | ||||
| JP5319258A | ||||
| JP62224798A | ||||
| JP62224797A | ||||
| JP6224989U | ||||
| JP323236B2 | ||||
| JP669201B2 | ||||
| JP698923B2 |
Attorney, Agent or Firm:
Natsuo Shiotani