SUPPORT ARM FOR AN OBJECT, FOR INSTANCE A LAMP, MAGNIFYING GLASS, ETC.

摘要

A supporting arm (1) for an object, for example, a lamp fitting, a magnifying glass or similar, including a swivel link wherein is incorporated a cam (3) having a cam surface (4) in the rotary plane and in spring-actuated contact interaction with a cam follower (5). The cam surface (4) is so formed (profiled) that the force required from the spring (16) essentially corresponds to its linear progressive characteristic during the relative movement between cam follower (5) and cam surface (4).