Hinge plate for heavy door, has supporting parts made up of rugged plastic such as Teflon, and placed between supporting sections, into which set screw is screwed, and ball made up of steel and arranged between supporting parts

摘要

The plate has outer and inner parts (1, 2) with a fastening unit for mounting the plate on a door frame. The inner part is placed between two cylindrical supporting sections (1a), which are placed on the outer part. Two supporting parts (4, 6) made up of rugged plastic such as Teflon, are placed between the sections. A ball (5) made of steel is arranged between the parts (4, 6), and a set screw (7) is screwed into the sections. The support part (6) exerts pressure against the ball (5) using the set screw, where the ball exerts the pressure against the support part (4).