To actualize smooth running at all times regardless of the shape of a pipe body.
The device is provided with driving cylinders 13 and 23, paired front and rear moving bodies 1 and 2 having diaphragms 31 and 32 parted from the inner wall surface Pa of a pipe body P at the sides of the tube members 14 and 24 of the driving cylinders 13 and 23 in a contracted condition, but abutting against the inner wall surface Pa of the pipe body P in a spaced and expanded condition, and with a connecting body 3 elastically connecting the rod member themselves of the driving cylinders 13, 23 together. This constitution thereby allows an inline running device to enhance running performance by widening its velocity changing range, and subdividing the width of its adjustment.
UMEMOTO AKIRA
OKADA MASAO
KAWABE KOHEI
FUJITA HIROYUKI
KAWANISHI MASAYA
YONDEN ENGINEERING CO LTD
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