Mold particularly for road vehicle wheels

Abstract

A mold particularly for road vehicle wheels, of the type comprising a lower mold part, an upper mold part and perimetric mold parts that form an impression to be filled with molten material, and comprising a distribution unit that is arranged below the lower mold part and is designed to be connected to at least one riser tube, which is shaped so as to form one or more slots shaped like a circular arc for injecting the molten material into the impression, the slots being arranged, when the mold is closed, at the outer front edge of the impression. The one or more slots are distributed circumferentially so as to allow a balanced injection with respect to the center of the impression.

1 - 13 . (cancelled).  
   
   
       14 . A mold particularly for road vehicle wheels, of the type comprising a lower mold part, an upper mold part and perimetric mold parts that form an impression to be filled with molten material, comprising a distribution unit that is arranged below said lower mold part and is designed to be connected to at least one riser tube, which is shaped so as to form one or more slots shaped like a circular arc for injecting the molten material into said impression, said slots being arranged, when the mold is closed, at the outer front edge of said impression, said one or more slots being distributed circumferentially so as to allow a balanced injection with respect to the center of the impression.  
   
   
       15 . The mold of  claim 14 , comprising a plurality of separate circular arc-like slots which are angularly equidistant and are arranged, when the mold is closed, at the outer front edge of said impression.  
   
   
       16 . The mold of  claim 14 , comprising a slot that runs continuously and circumferentially over 360 sexagesimal degrees and is arranged at said outer front edge of said impression when the mold is closed.  
   
   
       17 . The mold of  claim 14 , wherein said distribution unit is a hollow body that is shaped so as to form at least one channel for connection to a corresponding riser tube in a downward region, so as to form internally transverse channels for the passage of the molten material from said at least one connecting channel toward said at least one opening, and so as to form said one or more slots in the upward region.  
   
   
       18 . The mold of  claim 17 , wherein said transverse channels extend from a corresponding connecting channel up to at least one reservoir, formed by a tubular cavity located inside said distribution unit and shaped like a circular arc, above which there is a corresponding slot, said reservoir having a longitudinal extension equal to the corresponding slot.  
   
   
       19 . The mold of  claim 14 , wherein perimetric lips for connection to said impression protrude from edges that form said one or more slots.  
   
   
       20 . The mold of  claim 14 , wherein said distribution unit comprises two shaped elements that are superimposed so as to form said channels, the upper shaped element being in contact with said lower mold part, the lower shaped element being in contact with the riser tube.  
   
   
       21 . The mold of  claim 14 , wherein said distribution unit is provided with a central connecting channel, to be connected to said riser tube, from which radial transverse channels protrude, said channels being angularly equidistant and leading into an annular reservoir above which said circumferential continuous slot is provided, said connecting lips protruding perimetrically with respect to said slot.  
   
   
       22 . The mold of  claim 17 , wherein said at least one connecting channel is substantially vertical and is shaped in an upward region so as to provide a redirection element in order to distribute the molten material that arrives from said riser tube toward the corresponding transverse channels.  
   
   
       23 . The mold of  claim 14 , wherein said distribution unit is provided with seats for temperature and/or level measurement devices for the molten material that said distribution unit contains.  
   
   
       24 . The mold of  claim 20 , wherein said shaped elements are mutually associated by reversible fixing elements.  
   
   
       25 . The mold of  claim 20 , wherein said shaped elements are fixed to said lower mold part by reversible fixing elements.  
   
   
       26 . The mold of  claim 25 , wherein said reversible fixing elements are screws.