FIELD: manufacturing technology.
SUBSTANCE: invention relates to expanding anchor with anchor bolt with spacer region, spacer sleeve, which covers anchor bolt and strut off by retraction of spacer region, and located on anchor bolt spring element, which can be drawn by means of introduction of anchor bolt in drilled hole and in subsequent unloading can drawing spacer area anchor bolt in spacer sleeve. According to invention, provided indicator element, which indicates achievement of specified tension spring element.
EFFECT: simplified process of installation of spacer anchor.
9 cl, 3 dwg
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