Title:
INTRA-PIPE TRAVELING VEHICLE
Document Type and Number:
Japanese Patent JP3897399
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an intra-pipe traveling vehicle that can travel smoothly with little power loss wile suppressing a decrease or an increase in the clearance or force acting in the direction of decreasing or increasing the clearance.
SOLUTION: A plurality of driving vehicle bodies 3 traveling in a pipe by rotatory-driving of driving wheels 1a while attraction-holding wheels 1 magnetically to the internal wall 2 of the pipe are connected through connecting members 4 allowing expansion within specified width. In an intra-pipe traveling vehicle of such constitution, a distance detecting means 5 is provided to detect the change of a clearance of the longitudinally connected driving vehicle bodies 3, and a control means 6 is provided to control the rotating speed of the driving wheel 1a of at least one driving vehicle body 3 so that the clearance is maintained within the expansion width of the connecting member 4.
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Inventors:
Yoshio Otoo
Keizo Iwao
Keishi Kawaguchi
Keizo Iwao
Keishi Kawaguchi
Application Number:
JP15215397A
Publication Date:
March 22, 2007
Filing Date:
June 10, 1997
Export Citation:
Assignee:
OSAKA GAS CO.,LTD.
International Classes:
B61B13/10; B62D57/024; (IPC1-7): B61B13/10; B62D57/024
Domestic Patent References:
| JP930409A | ||||
| JP3239666A |
Attorney, Agent or Firm:
Shuichiro Kitamura