PIPE INNER FACE TREATMENT DEVICE

To provide a pipe inner face treatment device which stably grinds an inner face of a pipe by stably positioning a rotary grinding member.SOLUTION: A pipe inner face treatment device (1A) comprises: a rotary shaft (21); a cantilevered opposite member (29); a plurality of rotary grinding stones (24) respectively brought into contact with an inner face of a pipe (30); a plurality of drive force transmission members (23) which connect the rotary shaft (21) to respective rotary grinding stones (24); and a contact member (25) which is extended from the opposite member (29) and brought into contact with respective drive force transmission members (23) so as to fix relative positions of respective rotary grinding stones (24) with respect to the rotary shaft (21).SELECTED DRAWING: Figure 1 【課題】回転研削部材の位置を安定して保持させることにより、管の内面を安定して研削する管内面処理装置を提供する。【解決手段】管内面処理装置（１Ａ）は、回転軸（２１）と、片持支持された対抗部材（２９）と、管（３０）の内面にそれぞれ接する複数の回転砥石（２４）と、回転軸（２１）と各回転砥石（２４）とをそれぞれ接続する複数の駆動力連繋部材（２３）と、回転軸（２１）に対する各回転砥石（２４）の相対位置を固定するために、対抗部材（２９）から延びて各駆動力連繋部材（２３）に当接する当接部材（２５）とを備えている。【選択図】図１