| 摘要 |
PROBLEM TO BE SOLVED: To apply appropriately and easily a predetermined domain defined on the basis of projections, such as a bolt and a nut, according to a specification with application materials, such as sealant and the like.SOLUTION: An application brush for projection concerning to the embodiment has a brush and a shaft of rotation. The brush applies application materials to at least an annulus domain centering on the head of the bolt or the nut in an application object to which the bolt and the nut bound tight by the bolt are attached. The shaft of rotation rotates the brush. Moreover, the brush is constituted by transplanting a plurality of hairs around a cavity portion for avoiding interference with the head of the bolt or the nut so as to cover the annulus domain, when the brush is made to rotate. |
