Expansion anchor for mounting objects at an adjustable distance from a support structure

Claim 1

An expansion anchor for mounting objects at an adjustable distance from a support structure comprising an expansion anchor sleeve adapted for insertion into an expansion anchor hole and having a leading end and a trailing end; an expansion member at said leading end and adapted to be drawn into said sleeve for expanding the same; an externally threaded rod-shapped member having a front portion extending through said sleeve from said trailing to leading end thereof and adapted to draw said expanded member into said leading end when turned in requisite direction, and a rear portion projecting outwardly beyond said trailing end and said expansion anchor hole; a tapped sleeve threaded onto said rear portion and having an end which faces away from said expansion anchor sleeve and is formed with a head; and an abutment on said tapped sleeve and adapted to clamp between itself and said head an object through which said rear portion extends so that said abutment and head are located at opposite sides of the object and further comprising a tubular cap of synthetic plastic material at said trailing end of said sleeve and including an inner tubular collar extending into said sleeve, an outer tubular collar exteriorly surrounding said sleeve, and an annular portion connecting said collars and overlaying an axial end face of said trailing end.