Manufacturing profiles for sliding bookcases, involves bending rims of sheaves towards interior of profile, after sheaves are positioned between sidewalls of profile prior to its shaping

摘要

Sheaves, each with a shaft located inside a rim, are positioned between the sidewalls of a profile prior to its shaping. At the time of shaping, the rims are bent towards the interior of the profile. The profile, in turn, is bent towards the rim, doubling bending effect. An independent claim is also included for a ready-made profile.