Ice cube forming accessory for use in domestic freezer

not limitativo cativo and in the joined designs, in which:

- fig. the 1 illustrates the accessory according to the found one in perspective sight; - fig. the 2 axially illustrate the accessory according to the sezionato found one; - fig. the 3 illustrate the accessory according to the seen found one in plant from the low; - fig. the 4 schematically illustrate the employment of the accessory according to the inserted found one in a machine for the frosted production of of domestic type; - fig. the 5 illustrate the accessory according to the found one in axial section during the drainage of the cubetti of ice formati.

With reference to the figures cited, the accessory according to the found one, indicated totally with the reference number 1, is made up substantially of an element of mold preparation 2 that is conformed in way correspondent to the inner conformation of the bathtub of mantecatura 3 of a machine 4 for the preparation of the ice cream of domestic type, but of smaller dimensions, in such to define, once inserted way in the bathtub of mantecatura 3, an interstice 5 between the external surface of the element of 2 mold preparation and the internal surface of the bathtub of mantecatura 3.

Generally, the bathtubs of mantecatura 3 of blot some for the preparation of the ice cream of domestic type are to cylindrical conformation and therefore the element of mold preparation 2 preferibilmente introduces a conformation to cylinder cable with the opened advanced base, the accessory according to the found one comprises also average of subdivision of interstice 5 in such way to obtain cubetti of ice 7 with the conformation and the wished dimensions, as a result of the cooling of the water introduced in the interstice More particularly, the means of subdivision of interstice 5 are constituted from finnings that are connected directly to the external surface of the mold preparation element 2.

More particularly, the cited finnings comprise fins 8 that are developed circumferentially on the external lateral surface of the element of mold preparation 2 and fins 9 that they are developed according to radial plans on the same lateral surface of the element of mold preparation 2 in such way to intersect fins 8 and to form de] the niches on the lateral surface of the element of mold preparation 2 that detiniscono the conformation of the cubetti of ice to realize. Opportunely, fins 8, than are developed circumferentially around the lateral surface of the element of mold preparation 2, preferibilmente are tilted towards the low, in such way to facilitate the drainage of the cubetti formati.

3 097 CH 686 A5 the 4 finnings that subdivide the interstice comprise also of fins 10 that are applied on the external side of the bottom of the element of mold preparation 2 and that they are disposed to grill, in such way to confer to ice pieces formed the classic conformation to cubetto.

Favorablly, between fins 8, 9, 10 and the external surface of the element of mold preparation 2, are defined passages 20 that concur the drainage of the air in phase of filling of interstice 5 with acqua.

In order to always facilitate the drainage of the air, that dalie could ristagnare inside of the defined niches finnings, the bottom of the element dí mold preparation 2 could be slightly bombato with concavity turned towards the log-conical high or with apex turned towards the outside in such way to facilitate the sliding of the long air the bottom in direction of the lateral surface of the mold preparation element 2.

Preferibilmente, the element of mold preparation 2, like pure fins 8, 9 and 10, is realized in material to elevated heat conductivity, like to example aluminum, and the alerte preferibilmente they are connected to the lateral surface of the element of mold preparation 2, as an example by means of saldatura.

The employment of the accessory according to the found one is the seguente.

The accessory according to the found one comes decided inside of the bathtub of mantecatura 3 of the machine for the ice cream production 4, after to have preventively removed the agitator place inside of such bathtub. Successively, the interstice comes filled up with water and the machine comes sluice and set in action in order to cool the water introduced in interstice 5. After a time necessary to obtain the solidification of the water introduced in interstice 5, the machine comes disattivata and, after to have waited for the issolution of a thin ice layer on the internal surface of the bathtub of mantecatura 3, the accessory according to the found one comes removed from the bathtub of formed mantecatura withholding the cubetti of ice. Once extracted the accessory of the bathtub of mantecatura, is proceeded to the drainage of the cubetti of ice in a container, and the separation of the cubetti of ice from the element of mold preparation 2 can be facilitated introducing, inside from the element of mold preparation 2, the warm water or fredda.

In case for the machine for the ice cream production it comes previewed I use since with the accessory according to found its construction, the separation of the element of mold preparation 2 and the cubetti of ice from bathtub 3 to the term of the cooling cycle can be rendered extremely express previewing a heating of the walls of the bathtub of mantecatura as an example by means of an electric resistance applied to the external walls of bathtub 3, or by means of the breaking in of the fluid of job of the circuit refrigerator to a temperature more inside elevated of the culverts connected to the surface of the bathtub of mantecatura as an example bypassando the throttling that provokes the expansion of the fluid of the job of the circuit refrigerator before its breaking in the evaporator whose lead they are in adhesion to the external walls of the bathtub of mantecatura.

Practically it has been stated like the accessory according to the found one acquits the prefixed task totally as a machine of domestic type for the ice cream production concurs to produce cubetti of ice in times breviums using concurring in RAI way to decide of adequate amounts of cubetti of ghiaccio.

An ulterior advantage of the accessory according to the found one is that one to widen the possibilities of uses of a machine of domestic type for the production of gelato.

Practically, the employed materials, let alone the dimensions, will be able to assere qualsíasi second the requirements and the state of the technique.