Door frame - has sheet metal profiles joining corner frame along mitre cut and tension pins passing through projections on edge bevels

摘要

Sheet metal profiles have reflective surfaces formed by edge bevels and the profiles adjoin the corner frames along mitre cuts with corner connections. Tension units on the inner sides of the edge bevel align the parts of the reflective surfaces near to the joints. The tension unit is a pin (43) running essentially parallel to the reflective surfaces (9, 15) which passes through holes (23, 24, 25) positioned in projections (20, 21, 22) on the inner sides of the edge bevels (14). The pins (43) are tapered towards their front end, preferably forming a cone and have heads (46) to limit the degree of penetration.