Mechanical assembly system for lorry semi-trailer side frames and crosspieces which pass through cut-outs in side frame web comprises corner irons fixed by bolts on crosspiece and side frame

摘要

The crosspieces (2) consist of S or U sections passing through cut-outs (3) in the web of the side frames (1) to which they are assembled by two corner irons (10,11) fixed by bolts (12,12') on the crosspiece and the side frame.