To provide a telescopic tubular body which can be reduced in weight as a whole and is hard to be broken or the like at a joint portion between a large diameter pipe and a small diameter pipe.A telescopic tubular body is configured in a telescopic type in which a small diameter pipe is joined to a large diameter pipe having a circular cross section, and the telescopic tubular body is reinforced with fibers which are fitted and fixed to the inner surface of the small diameter pipe And has a solid solid body 30 made of resin. The solid body 30 is fitted into the inner surface of the small diameter pipe 11 so as to include the portion where the leading edge E of the large diameter pipe 10 is in contact at the joining portion where the small diameter pipe 11 is extended and fixed from the large diameter pipe 10, It is fixed.(FIG.【課題】全体として軽量化が図れるとともに、太径管と細径管の継合部分で破損等が生じ難い伸縮式管状体を提供する。【解決手段】伸縮式管状体は、断面円形の太径管10に対して細径管11を継合する伸縮式に構成されており、細径管11の内面に嵌入、固定される繊維強化樹脂製の中実体30を備えている。中実体30は、細径管11を太径管10から伸ばし固定した状態の継合部分において、太径管10の先端縁Eが当接する部分を含むように細径管11の内面に嵌入、固定されている。【選択図】図2
