FR2608035A3 - DISHWASHER WITH ADJUSTABLE SPRAY SPRAYERS - Google Patents

Abstract

THE INVENTION RELATES TO HOME APPLIANCES. IN THE WASHING TANK 5 OF THE DISHWASHER IS AT LEAST ONE BASKET 7 FOR SUPPORTING ITEMS, BELOW WHICH IS A ROTATING REEL 11 EQUIPPED WITH JETS. MANUALLY ACTUATED ADJUSTMENT MEANS ALLOW TO REVERSE THE JETS BETWEEN A FIRST AND A SECOND WORKING POSITION, IN WHICH THEY ARE SUITABLE TO PROJECT JETS OF WATER UP AND DOWN RESPECTIVELY. MAIN APPLICATIONS: HOUSEHOLD DISHWASHER.

Description

The present invention relates to a dish washer

  the type comprising a wash tub which contains an upper basket and a lower basket supporting

washing items.

  Normally, there is provided below each basket a corresponding rotating reel which is intended to project upwards jets of wash water and / or

rinsing.

  As is well known, in some cases, the load of items to be washed is composed of a small number of very dirty objects that are preferred to have

  only in the lower basket, where they can be

  rosés simultaneously from below and from above. For this, it is already known, for example because of the patent

  EP-A-00 228 079, to equip the upper reel with

  projectors located not only in its sec-

  tion but also in its lower section

pool.

  Naturally, the upper sprinklers of the mill

  net are almost superfluous when the

  The items to be washed are placed in the only lower basket

  while the lower jets of the same mold

  linet consume unnecessary hydraulic energy when the objects to be washed are arranged in both

baskets.

  In the end, to obtain sufficient washing services in both cases, it is necessary

  undesirably oversize the circulation pump

  culation that feeds the reels. We sought to

  these drawbacks, as described, for example, in the patent IT-A-1 099 681, using

  reels of the traditional type and providing

  down a feeding tube of the mold.

  linet upper which extends below the upper basket

  laughing. The nozzles of the feed tube are fixed and can be selectively closed by means of

manual command.

  In this way, it is possible to limit the hydraulic dispersions when the articles to be washed are arranged in the two baskets and the nozzles of the feed tube of the upper reel are closed.

  On the other hand, even with this solution, the

  the upper reel are practically superfluous when the items to be washed are arranged exclusively

in the lower basket.

  In addition, in this case, the additional washing effect

  tion of the fixed nozzles of the feed tube does not

  only in a defined area.

  The object of the present invention is to provide

  a dishwasher equipped with adjustable projection means

  with which it is possible to carry out separately

  in an efficient way, and with a constant flow of water, normal washing of articles arranged in the two baskets of the machine and intensive washes

  of articles arranged in the single lower basket.

  According to the invention, this object is achieved in a

  dishwasher equipped with adjustable spray nozzles

  which includes a washing tub containing

  minus a support basket of items below the-

  which is arranged at least one rotary reel provided with

  said sprinklers. Adjustment means with manual actuation

  are adapted to allow switching between

  between a first working position and a

  second working position in which they are

  projecting jets of water respectively to the

up and down.

  The adjustment means preferably comprise

  latching means that can be unlocked by means of

  which the rotating reel is adapted to be supported by a feed tube, as well as a removable cap

  adapted to close a hole in the lower

  the reel, coaxial with the axis of rotation and

  one hole in the upper part of the mill.

  net and by means of which the reel communicates with the

be feeding.

  Figures in the attached drawing, given only

  by way of example, make it clear how

  vention can be realized. In this drawing, Figure 1 shows schematically in section

  the dishwasher according to the invention equipped with its

  fundamentals; Figures 2 and 3 show schematically sections respectively transverse and longitudinal of a detail of the dishwasher of Figure 1, according to a preferred embodiment of the invention;

  Figure 4 shows schematically, in

  Partially, a variant of the detail of FIG.

  As can be seen in Figure 1, the washer

  dishware according to the invention comprises a washing tub in which are housed a lower basket 6 and a

  upper basket 7 for supporting the dishes at

worm.

  A water recirculation pump 8 is suitable for

  to feed a rotating reel 9 and, through

  an interruption in the air 10, a rotating reel 11.

  The water circuit comprising the reels 6 and 7, the pump

  eg 8 and the corresponding connecting tubes can be

  to be realized as described, for example

in GB-A-1,514,652.

  In particular, the rotating reels 9 and 11

  are respectively below the baskets cor-

  6 and 7 and they are equipped with spray nozzles normally capable of projecting jets

  of water upwards for the washing of medium-

  (not shown) which are arranged in the

two baskets.

  In Figure 2, the sprinklers of the upper reel

  11 are indicated in 12 and are exclusively

  in its upper part. As in the construction

  the reel 11 is hollow and equipped

4 2608035

  in its upper part of a hole 13, coaxial with the axis of rotation 14, by which it communicates with the tube

corresponding power supply 15.

  Another hole 16, coaxial and similar to the hole 13, is formed in the lower part of the reel 11 and is normally closed by a removable cap 17, which can be forced down. The reel 11 is supported by the tube 15, in communication with the latter through the hole 13, and it is preferably made integral with this

  tube in rotation by means of unlocking means

  rust which includes a frame 18 in the form of

ge, or equivalent.

  As shown in FIG. 3, the chassis 18 preferably comprises a first part 19

  integral with the feed tube 15, and a second part

  tie 20 which is articulated on the first and can be

  close on it by means of attachment means to

  ratcheting 21. The portion 20 of the frame 18 is preferably

  made of plastic material and the iron cap

  meture 17 came from one piece with her.

  In the end, the frame 18 and the stopper

  vible 17 constitute means for adjusting the nozzles

12 with manual operation.

  Indeed, when you want to wash a quantity

  reduced very dirty objects, arranged in the only pa-

  lower denier 6, it is possible to switch to

  down the jets of water emitted by the jets 12 by a sim-

  full manual operation. This operation consists of

  the chassis 18 by acting on the hooking means

  21, and at the same time extracting the plug 17 from the hole 16 of the reel 11; the position of the reel 11 is then reversed by putting the hole 16 in communication with the feed tube 15; finally, the frame 18 is closed, while at the same time obstructing the hole 13

  with the closure cap 17. At this stage, the washer

  dishwashing equipment is able to function without dispersion or

  of the characteristics of the water circuit, and

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  concentrating the washing jets on the lower basket 6.

  Naturally, the dishwasher described above

  The above may be subject to numerous modifications which fall within the scope of the invention. For example, the means for adjusting the jets can be of a type

  different, according to the specifications and the characteristics

  the water circuit of the machine.

  A particularly convenient variant to the use of

  is the one shown in FIG. 4, in which the upper reel 11 is equipped, not

  only sprinklers 12 formed in its upper part

  re but also sprinklers 22 formed in its lower part. Inside the reel 11, there is a slider 23 which comprises a jacket or at least two walls 24, 25 which are elastically in contact with the wall of the reel 11 in line with the nozzles 12 and 22. The walls 24 and 25 present two sets of holes 26 and 27

  arranged in such a way that in a first posi-

  working position of the slider 23 (shown in FIG.

  4), the holes 26 coincide with the upper jets.

  12, while the lower jets 22 are ob-

by the wall 25.

  In a second working position of the

  bucket 23, which can be shifted horizontally or angularly

  10 relative to that indicated in FIG. 4, the holes 27 coincide with the lower nozzles 22 of the reel 11, whereas the upper nozzles 12

are closed by the wall 24.

  The manual actuation of the slider 23 can

  be realized by means of a rod 28 or equivalent, solidified

  23 and that emerges at one end of the reel 11. In this way, by simply acting on

  rod 28, it is possible to ensure that the mold

  the upper linet 11 produces exclusively upward directed jets or exclusively directed jets

down.

  It goes without saying that various modifications

  The device described above can be made by those skilled in the art, in particular by substituting the equivalent technical means, without departing from the scope of the invention.

Claims (4)

R E V E N D I C A T IONS   1 - Dishwasher equipped with spray nozzles   adjustable, including a wash tub which   contains at least one support basket for items   below which is disposed at least one rotating reel equipped with said nozzles, characterized in that it comprises   furthermore, the adjustment means is actuated manually.   (17, 18, 23) adapted to make it possible to communicate   the sprinklers (12, 22) between a first position of   work and a second position in the work-   which these jets are adapted to project the jets   of water respectively up and down.   2 - Dishwasher according to claim 1,   in which is provided on the upper part of the mold   net, said nozzles and a first hole, co-   axial to the axis of rotation and by means of which the reel communicates with a feed tube, characterized in that said adjusting means comprise means   latches (19, 20, 21) with the help of-   the rotary reel (11) is adapted to be sup-   carried by the feed tube (15), as well as a   removable plug (17) adapted to close a second axial hole (16) and the like (13) which is formed on   the lower part of the rotating reel.   3 - Dishwasher according to claim 2,   characterized in that said hooking means comprise   a support frame (18) consisting of at least two parts (19, 20) which can be separated from one another and on which said closure cap (17) came from one piece.   4 - Dishwasher according to claim 1, wherein said nozzles are formed on the part   upper and lower part of the rotating reel   characterized in that the adjustment means comprise   a slide (23) normally able to close   said nozzles (12, 22), which is pierced with holes (26, 27)   and can be switched manually between a first   working position, in which the holes (26) coincide   tooth with the upper sprinklers (12), and a second   working position, in which the holes (27) coincide   tooth with lower nozzles (22) of the t11 reel).