The base member (7) composing a portion of the bracket (1) of the present invention includes: a fitting section (2) engaged with an attachment opening of the roof trim which is an interior wall member on the reverse face of the substantially elliptical base plate (6); an elastic fitting section (3), which is elongated and is curved into a plane arc shape, elastically engaged with a peripheral edge of the attachment opening on the fitting section (2) opposed with respect to the opening (8); and a flange section (4) coming into contact with an upper face of the roof trim (35). The cross-section of this elastic fitting section (3) is a substantial U-shape. The flexible piece (3a), in which a space for bend is formed, is vertically arranged outside at the base bottom section in such a manner that the flexible piece (3a) rises upward. On the outer circumferential face of the flexible piece (3a), there is provided a non-slip section (9) including a plurality of transverse grooves coming into contact with the peripheral edge face of the attachment opening.