| 摘要 |
The invention relates to the production of one-piece supports for engine rocker shafts for motor vehicles. The aforementioned shafts are of the type comprising one moulded part that is obtained using a main journal (9) which is complemented by an auxiliary journal (10). The auxiliary journal, which is intended to form the necessary lubrication conduit, is disposed (10) in a tangential manner on the structures (15) which are intended to form the holes (2) that are used to mount the rotary elements. One end of said auxiliary journal is fixed to one of the structures (15) while the other end thereof is fixed by means of an end section (11) to a structure (12) disposed on the main journal (9), thereby forming a lubrication conduit in the moulded part which is only open at one end thereof.
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