The present invention provides a sheet stopper that has sufficient strength, can sufficiently widen an opening, and can sufficiently clamp a support member. A cylindrical first fitting portion 10, a cylindrical second fitting portion 20, a first fitting portion and a second fitting portion are connected to each other and have a recess with respect to a column member. In the sheet stopper 1 including the connecting portion 30, the first fitting portion includes a first clamping portion 11 that sandwiches the sheet-like member, and the first clamping portion opens in the axial direction. It has the 1st opening part 12 and the 1st inner peripheral surface 13 fitted to the surface of a support pillar member on both sides of a sheet-like member, and the 2nd fitting part is the 2nd clamping which pinches interposes on both sides of a sheet-like member The second holding portion includes a second opening portion 22 that opens in the axial direction, a second inner peripheral surface 23 that fits directly or with the surface of the support member across the sheet-like member, and a second opening Two knobs projecting in the direction opposite to the second opening are provided on the left and right sides of the part. [Selection] Figure 1【課題】十分な強度を有し、開口部を十分に拡開できるとともに、支柱部材を十分に挟持することができるシート止め具を提供する。【解決手段】筒状の第１嵌着部１０と、筒状の第２嵌着部２０と、第１嵌着部と第２嵌着部とに接続され、支柱部材に対して凹部を有する連結部３０とを具備するシート止め具１であって、第１嵌着部は、シート状部材を挟んで挟持する第１挟持部１１を有し、第１挟持部は、軸線方向に開口した第１開口部１２と、シート状部材を挟んで支柱部材の表面と嵌合する第１内周面１３とを有し、第２嵌着部は、シート状部材を挟んで挟持する第２挟持部を有し、第２挟持部は、軸線方向に開口した第２開口部２２と、直接またはシート状部材を挟んで支柱部材の表面と嵌合する第２内周面２３と、第２開口部の左右両側部に第２開口部の反対側方向に突出する２つの摘み片とを有する。【選択図】図１
