Flat display holder arm

Abstract

A flat display holder arm includes a tension spring with one end hooked to a first axial pin crossing both side arms and the other end connected to a steel cord and going around an axial pin at the base before being hooked to an axial pin crossing a mobile seat; length, i.e., strength of the tension spring being adjustable by the steel cord to set up the supporting force of the arm by the tension spring to reduce the weight of the holder, thus the production costs of parts.

1 . An improved construction of a flat display holder arm comprised of two hollowed levers locked to two bolts on both sides of a base by means of compression ring and nut for each lever; a bolt is mounted on the base by means of a nut; a mobile seat provided with an axial pin being pivoted to the bolt; a tension spring being disposed in a space defined by two levers; one end of the tension spring being hooked to an axial pin crossing both levers; another end of the tension spring being connected to a steel cord; the steel cord going around an axial pin fixed to the base before being hooked to an axial pin disposed crossing the mobile seat; the position of the mobile seat being set by rotating the bolt; the length, i.e., the strength of the tension spring being adjusted by the steel cord.