Title:
CONVEYANCE BOGIE FOR PIPE BODY
Document Type and Number:
Japanese Patent JP3020951
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a compact conveyance bogie for a pipe body capable of being inserted into and pulled out of a pipe body easily.
SOLUTION: An auxiliary wheel 8 which is moved vertically by a cylinder 7 and is made of urethane rubber is provided at a position closer to a front wheel 2 on a rear side than a front wheel 2 so that the front wheel 2 can leave and reach a rail 11 provided in an existing pipe on a front end side of a pipe body 1 in a condition in which the auxiliary wheel 8 comes into contact with an inner face on the front end side of the pipe body 1. The auxiliary wheel 8 runs in the pipe body 1 while the front wheel 2 floats from the inner face of the pipe body 1 so that a bogie can be easily inserted into and pulled out of the pipe body 1 without damaging the inner face of the pipe body 1.
Inventors:
Yamamura, Hitoshi
Maeda, Akiya
Maeda, Akiya
Application Number:
JP1999000132852
Publication Date:
January 14, 2000
Filing Date:
May 13, 1999
Export Citation:
Assignee:
SOGO TSUSHO KK
SEKISUI CHEM CO LTD
SEKISUI CHEM CO LTD
International Classes:
B62B3/10; B61B13/10; B62D57/024; E21D11/40; E21F13/02; F16L55/00; (IPC1-7): F16L55/00; B61B13/10; B62B3/10; E21F13/02