Ice-cream stirring device with stirring blades and scraping vanes
AssigneeCarpigiani S.R.L.
InventorGino Cocchi
Life of this patent
Estimating the term…
Abstract
Stirring device for machines for the manufacture of ice-cream, of the type with a whipping cylinder (1) with a horizontal axis, provided with a device for extraction of the ice-cream at one head side. The stirrer consists of two stirring blades (7) of helical shape which are arranged diametrically opposite one another and extend over the entire length of the whipping cylinder at a slight distance from the internal wall of same. The stirring blades (7) are supported on a hub (8) which is integral with the operating shaft (9), while there is provided between the two stirring blades (7) a plurality of scraping vanes (11) which are capable of interacting with the internal wall of the whipping cylinder.
Claims23
A stirring device for a machine used for the manufacture of ice cream, which machine includes a whipping cylinder having a horizontal axis about which an operating shaft rotates and a means for extracting of the ice cream at a head side of the whipping cylinder, said stirring device comprising:
- a peripheral stirrer which is rotated about the axis of the whipping cylinder inside of the whipping cylinder, said stirrer including
- a hub which is integral with the operating shaft so as to rotate therewith,
- two stirring blades of helical shape supported on said hub, said stirring blades being arranged diametrically opposite to one another and extending over a majority of an entire length of the whipping cylinder at a slight distance from an internal wall of the whipping cylinder,
- at least one support bush spaced from said hub toward the head side and connected to said stirring blades, said support bush having a hollow adjacent to the head side,
- a plurality of scraping vanes, each said scraping vane including a radially external side,
- a vane support means for supporting said vanes on said hub and said support bush between said two stirring blades and said vanes being distributed longitudinally over the length of the whipping cylinder in an angularly staggered and longitudinally staggered relationship, such that said radially external side of each said scraping vane interacts with the internal wall of the whipping cylinder, and
- a stirring/scraping head adjacent the head side of the whipping cylinder, said head including an insertion prolongation having a radial anti-rotation extension extending longitudinally away from the head side, said head being received in a portion of said support bush such that said anti-rotation extension is engaged in said hollow of said support bush.
Dependencies are inferred from the claim text.