US3430638A

US3430638A - Machine with self-centering rotating basket for washing dishes and utensils

Info

Publication number: US3430638A
Authority: US
Inventors: Giuseppe Brollo
Original assignee: Individual
Current assignee: Individual
Priority date: 1967-01-13
Filing date: 1967-04-11
Publication date: 1969-03-04
Anticipated expiration: 1986-03-04
Also published as: NL6705103A; NO119247B; FI45293C; SE308586B; FR1527018A; DK116961B; IL27614A; DE1628497A1; DE1628497B2; FI45293B; BR6789901D0; JPS4938144B1; AT273416B; BE695599A; ES338671A1; GR33601B; CH449194A; NL128635C; LU53440A1; GB1175748A

Description

March 4, 1969 3v BROLLO 3,430,638

' MACHINE WITH SELF-CENTERING ROTATING BASKET FOR WASHING DISHES AND UTENSILS Filed April 11, 1967 s t INVENTOR G. B ["02 Z0 ATTORNEYS March 4, 1969 G BROLLQ 3,430,638

MACHINE WITH SELF-CENTERING ROTATING BASKET FOR WASHING DISHES AND UTENSILS Filed April 11, 1967 Sheet 3 014 L-J o 5 w CZTJFIi'LiZZZfi:12 1-33) INVENTOR BY e14 A'rroRN V G. BROLLO 3,430,638 MACHINE WITH SELF-CENTERING ROTATING BASKET March 4, 1969 FOR WASHING DISHES AND UTENSILS Filed April 11, 1967 Sheet Fig.

INVENTOR G. B r0220 B mukw ATTORNEYS arch 4, 1969 G, BROLLQ 3,430,638

MACHINE WITH SELF-CENTERING ROTATING BASKET FOR WASHING DISHES AND UTENSILS Filed April 11. 1967 Sheet .4" of 4 INVENTOR ATTORNEYS United States Patent MACHINE WITH SELF-CENTERING ROTATING BASKET FOR WASHING DISHES AND UTENSILS Giuseppe Brollo, Plaza della Repubblica 32, Milan, Italy Filed Apr. 11, 1967, Ser. No. 630,118 Claims priority, application Italy, Jan. 13, 1967,

11,434/ 67 US. Cl. 134112 4 Claims Int. Cl. A471 /32 ABSTRACT OF THE DISCLOSURE A machine for washing dishes and the like having a disc supporting the basket for the articles to be washed, the disc being rotatably mounted on a coaxial support. The basket is guided and raised by a pair of strips which are located under the basket and connected by hinge means with the closing door of the machine.

Machines for washing dishes and utensils of the known type, whether the basket is fixed or movable, are of a somewhat complex construction and, among other things, they do not meet present demands basically because they need a large amount of detergent and washing takes a considerable time.

Furthermore these machines of the known type have a small volumetric capacity in relation to their overall dimensions, in consequence of which the washing operations have to be repeated several times before the average number of articles has been washed. This has the disadvantage of necessitating long periods of work, waste of material, heavy consumption of electricity and the use of a considerable amount of water with only a modest result in service.

The present invention relates to a machine for washing dishes and utensils and similar articles, of a simpler construction and with more efliciency, in which the volumetric capacity in relation to the total overall dimensions of the machine is raised to a point where for an average load of articles to be washed only one working cycle has to be carried out.

By comparison with the known types, the machine according to the invention has the advantage that the basket(s) for holding the articles can be taken out completely and the relative operations of inserting and removing the basket(s) do not entail laborious procedures because the same closing door of the machine provides for the disengagement of the basket(s) when the machine has to be opened and for their automatic centring in the correct position when, on the other hand, the machine has to be closed to start a fresh working cycle. This automatic action is achieved by the present invention by the fact that the basket(s) for holding the articles are disposed on a rotating plate appropriately supported so as to rotate freely and that the means for disengaging the basket(s) from this rotating plate are connected by an articulation with the closing door of the machine in such a manner that the opening of this door shall bring about the raising and hence the disengagement of the basket(s) from the machine, while the closing of the said door effects a lowering and consequently an automatic placing on and in the centre of said rotating plate, the above-mentioned means of placing and disengagement of the basket(s) consisting of strips, on an incline plane, Working bilaterally under the basket and by sliding on some fixed part of the machine.

The rotation of the basket(s) together with the abovementioned rotating plate takes place according to the invention by causing jets of water issuing under pressure from one or more ejector nozzles to play on the articles to be washed, from the front and at a certain angle, while Patented Mar. 4, 1969 other jets of water, coming from another ejector nozzle, or other ejector nozzles, differently disposed and angled in relation to the ones mentioned already, play on the same articles from the rear with a braking action, or vice versa so as to wash the articles vigorously on both sides, the angling and disposition of all these ejectors being preselected in such a way as to effect a relatively slow axial rotation of the said basket(s).

Some possible forms of construction of the machine according to the invention are illustrated by way of example in the accompanying sheets of drawings.

FIG. 1 represents a machine for washing dishes and utensils in accordance with the invention, provided with two baskets operating independently, in which for the sake of clarity of illustration the lower basket has been removed and the corresponding door opened.

FIG. 2 shows the same machine as in FIG. 1 but here the upper door is open and the basket for holding the articles and the relative rotating disc have been drawn in exploded position in solid lines, the working position of the latter having been drawn in broken lines.

FIG. 3 is a partial longitudinal section of the upper part of FIG. 1 or lower one of FIG. 2, reproduced with the various members in position detached from one another.

FIG. 4 is a longitudinal section of FIG. 2, completed by the baskets the lower of which is shown in the working position and the upper one in the removal position.

FIG. 5 is a plan view of FIG. 4 viewed along the transverse plane 5 5 FIG. 6 indicates a constructional variant of the machine under consideration in which the baskets are coupled to one another so as to operate jointly on a rotating plate for their common support.

FIG. 7 is the machine in FIG. 6 viewed from above on a different scale.

With reference to FIGURES l to 5 as an indication, the machine comprises a case 1 with two closing doors, an upper door 2 and the other, lower door 3.

Level with each door and in the centre of the machine are disposed the

supports

4 and 5, respectively, on which the rotating discs carrying the

baskets

6 and 7, respectively, engaging with the pin 8 and the circular edge 9 of each support by their

lower recesses

8a and 9a, are adequately located with free axial rotation. Constructionally, the support 4 is held up by the cross member 10 and the support 5 by the baseplate 11 of the machine, while suitable ball bearingsnot shown-or some other equivalent permit a reduction in the friction involved.

The baskets for holding the articles to be washed 12 and 13 are simply inserted in the machine through the doors and automatically arranged on the corresponding

rotating discs

6 and 7 as described above, by means of an edge 14 which projects sufficiently from the said discs and is adapted to receive, with an easy fit, a prominence 15 disposed at the bottom of each basket.

Fixed against the inner surfaces of the walls on both sides of the machine are two

small squares

16 and 17 level with each door, on which there can run freely the

strips

18 and 19 respectively, connected in cantilever fashion on the corresponding door by means of the hinge which has the general reference 2% These strips have at the rear an inclined plane 21 which effects the lifting of the relative basket when the door is opened, permitting it to become disengaged from the rotating plate and to glide along said strips, to bring it outside the machine for easy removal, as is shown in the top part of FIG. 4. Conversely, when the door is closed the strips descend, permitting the basket to place itself automatically, simply by dropping down, on the corresponding

rotating plate

6 and 7 after having been pushed, first by hand and then by the door itself, up to an end 3 stop which for the sake of brevity has not been shown in the drawing.

Disposed, substantially vertical in their position in the interior of the machine, are two

water pipes

22 and 23 which come from a tank of feed water 24. This tank 24 and all the arrangements for filtering and conveying the water and everything else necessary for carrying out the stages of washing and rinsing in a continuous cycle have not been described in detail here because they are well known in this field.

From the

pipes

22 and 23 the water, heated by the electrical resistance 25 and forced through at high pressure by the motor 26, is forced out through water ejecting nozzles 27-282930 disposed along the said pipes in a position tangential to the

baskets

12 and 13 for holding the articles to be washed, while a pair of

ejectors

27 and 28 for each basket plays from the front on the dishes and utensils 31, here disposed radially, upright in said baskets while the water issuing from the other pair of

jectors

29 and 30 present for each basket plays on the dishes and the utensils from behind, but at a different inclination, more angled, in order to obtain a braking action so as to permit a relatively slow rotation of the baskets in the counterclockwise direction F (FIG.

The ejectors of each pair are slightly out of phase in relation to one another, the sole purpose of this being to direct the washing water as much into the more projecting zone as into the zone of the dishes which is nearer the centre of rotation of the corresponding basket.

In a constructional variant the present machine, as is shown in FIG. 6, comprises two

baskets

12a and 13a, superposed and adequately linked together simply by fitting in, both being held up by a single support 5a to carry the disc, disposed on the baseplate of the said machine. This constructional solution confers the advantage of a further limitation of the overall dimensions of the machine and also of the manufacturing costs because, by comparison with the previously described machine, this one requires the use of only one rotating disc and only one closing door 2a, besides the installation of a single pair of

strips

18a and 19a for guiding and disengaging the baskets. In this constructional solution the dishes and the utensils are placed one after the other and parallel to one another so that the jets of water coming from the ejector nozzles 27-28-29 and 30, striking said dishes and said utensils at different angles at first from the front and, after half a turn of the basket from the rear, cause the latter to rotate in one direction or the other according to the inclination which is given to the said ejector nozzles.

Naturally the dishes and the utensils can be placed in the baskets in other, different positions besides the radial arrangement and the parallel arrangement described above, without thereby changing the washing action which is obtained under the present invention with jets of water for moving and jets of water for braking the rotation of the baskets,

I claim:

l1. Machine for washing dishes, utensils and similar objects characterized by the fact that it comprises at least one supporting disc for at least one basket containing the articles to be washed, rotatably disposed on a coaxial support and a pair of strips for guiding and raising said basket, disposed bilaterally under the latter, connected by means of a hinge with the closing door of the machine and operating, on an inclined plane, against a fixed part of the machine, so as to efiect the raising of the said basket, disengaging it from the above-mentioned rotating disc when the door is opened after the washing operation and, conversely, effecting the lowering thereof, and hence its placing on the rotating disc, when the door has to be closed for putting the machine into action, also that it comprises a series of ejector nozzles emitting water under pressure, disposed on tangential opposition to the baskets, of which ejectors at least one directs the water frontally on to the articles to be washed, previously arranged upright in any way in the baskets, and at least one other ejector, set at a different angle, directs the water from the rear on the said objects with a braking action, so as to obtain a relatively slow rotation of the basket.

2. Machine for washing dishes and utensils as claimed in claim 1, characterized by the fact that the rotating disc carrying the basket is engaged coaxially by its support with the interposition of ball bearings, or the like, said support being disposed under the rotating disc so as not to impede the removal and the placing of the basket holding the object for washing on the said disc.

3. Machine for washing dishes and utensils as claimed in claim 1, characterized by the fact that it comprises two or more baskets operating independently, disposed on the same number of discs rotating in the same direction or in opposite directions, and two or more doors located level with said baskets.

4. Machine for washing dishes and utensils as claimed in claim 1, characterized by the fact that it comprises two or more baskets linked coaxially one on the other so as to operate jointly and one rotating disc supporting said baskets, also a single frontal door located level with the said baskets.

References Cited UNITED STATES PATENTS 1,633,803 6/1927 Ballin 134-438 3,060,944 10/1962 Brollo 134139XR FOREIGN PATENTS 112,204 1/ 1941 Australia.

ROBERT L. BLEUTGE, Primary Examiner.

US. Cl- X.R. -1. 4l. 1 165