FR2482851A1 - FOOD WASHING MACHINE - Google Patents

Abstract

THE INVENTION RELATES TO A FOOD WASHING MACHINE. THE FOOD WASHING MACHINE IS EQUIPPED WITH A DRYING DEVICE AND IS INTENDED IN PARTICULAR FOR VEGETABLES AND SALADS. IT ALLOWS A QUICK WASHING, BUT HOWEVER CLEANING, AS WELL AS IMMEDIATELY SUBSEQUENT DRYING IN THE SAME CONTAINER USING SIMPLE TECHNICAL EQUIPMENT. WASHING AND DRYING ARE POSSIBLE THANKS TO A LIFTING DEVICE 7 FOR THE BASKET 26 IN ORDER TO BRING THE BASKET INTO AN INTERNAL POSITION A AND IN AN EXTERNAL POSITION B CLOSE TO THE INTRODUCTION OPENING 29 OF CONTAINER 1. APPLICATION TO WASHING AND DRYING OF VEGETABLES.

Description

- 248 285 1

  The present invention relates to a washing machine

  foodstuffs equipped with a drying device, in particular

  binding for vegetables and salads, and in which is used, for washing and drying, a common basket, substantially cylindrical, to put in place through an opening opening, rotating during the operation of

  washing and drying, traversed by water during the operation

  washing and mounted in a common container, permanently attached. A food washing machine of this type is known from Patent Application No. 27 26 447 published in the Federal Republic of Germany. In this washing machine, a horizontal axis liquid cylinder is mounted in a container. After the washing operation in a container completely filled with water constantly, the liquid is discharged and the water is then removed by centrifugation. In this

  patent application, it has proved particularly useful

  to realize the liquid cylinder more closely than

  space for moving vegetables and, furthermore,

  the vegetables during the wash on their horizontal axis at a number of revolutions

  is well below the number of laps of the

  fugation, After the washing operation, the washing liquid is removed, according to this patent application, and the centrifugation operation is carried out without modification

  necessary prior to the position of the vegetables.

  In the device of said patent application, it is necessary, before rinsing, to completely evacuate water from the container. This takes time. More time is lost when the washing water has to be removed several times during washing to again rinse the heavily soiled vegetables in a relatively clear manner. The cleaning itself is relatively long, because the relatively regular rotation movement does not act in a particularly energetic way on the

  products to be washed. The additional constraint rotation

  Vegetation during the washing operation also requires a relatively high expense. This machine

  washing is therefore extremely expensive and is not acceptable.

  financially than for large industrial companies

-monthly.

  The object of the present invention is to realize

  a food washing machine of the type mentioned above, so that a quick but gentle washing and immediately subsequent drying in the same container are made possible by means of

simple techniques.

  This object is achieved according to the invention,

  in that a lifting device is provided for -

  basket containing the product to be washed, with a view to bringing:

  in an inner position and in a position e: tê-

  closer to the container introduction opening.

  This container must itself therefore be of a gu: n-

  such that it allows both positions. In this way,

  it is possible to wash the basket in a lower position

  and dry it in a superior position: e. Lk; pe-

  ration in the outer position of the basket may, in this case, begin immediately, even when the water of

  washing is still present in the inner area of Europe.

  tainer. By upward and downward movement during the washing operation, the washing process is intensified and accelerated. At the same time, agglomeration

  vegetables or salads is prevented by this movement.

  The lifting device is manufactured simply and its price is therefore favorable. From then on, it is approachable for small artisanal exploitations and possibly for private houses. Congestion is also

relatively small.

  Preferably, the lifting device consists of a pin arranged centrally. able to go out in the direction of the introductory opening and engaging in a

  sleeve engaged with or connected to the basket. The man

  chon can be centrally placed in a disk for the support of the basket, which rests on the spindle. The spindle can be firmly connected to the sleeve and mounted in the mechanically rotating state, but it can also preferably be applied by its tip to the freely rotatable state on the spindle.

248285 1

  the end of the sleeve, preferably via a spike housing, a slider bearing for the spindle

  being provided at a distance from the end of the tip.

  Thus, a very low friction and, consequently, an

  stably stable by sliding are guaranteed. The upward movement of the lifting device can be controlled by a program. This program can be combined with the usual wash program and is preferably controlled as a function of time.

  The upward movement can be controlled simply

  by a hydraulic system, the hydraulic cylinder being connected to a water pipe. The water pipe can be opened and closed by electro-valves in accordance with the schedule; in the latter case, the elimination of water is generated simultaneously so that the basket can again lower. The disk for the support of the basket may include inwardly directed fins, i.e. towards the center of rotation. By directing one or more jets of water

  on these fins, which can come out from one to several

  In the case of the control nozzles, the disc can be rotated to support the basket as well as the basket placed on it.

  It has proved preferable to provide training

  mentioned above for the support of the single basket.

  in the outer position of this basket via the control nozzle and the fins

  arranged below this disc for the support of the basket.

  In this position, in particular the drying position, it is possible to perform in this way a fast rotation

  of the basket and therefore fast drying.

  In the inner position of the basket, that is,

  say in the washing position itself, the product

  to wash and also the basket itself can be

  dice slowly only through the wash nozzles. A rotation

  slow is actually more preferable for the washing operation.

  The washing nozzles may be arranged on the periphery of the

  container, preferably at different distances from the

  introductory opening. The jets of water leaving the washing nozzles are directed substantially in the direction of the axis of rotation of the basket, but are however slightly offset. In this way, we produce a slow rotation of the basket and simultaneously a slow circulation of the product to be washed inside the basket. In addition, fresh water jets can be

  provided in the outer peripheral area of the container.

  These nozzles can bring fresh water temporarily, according to the program, or even constantly; this water

  cool ensures constant renewal of the wash water.

  In this case, an overflow device must ensure that

  maintaining a level of equal water in the container.

  In addition, it is possible to have

  inside the container, high pressure nozzles

  which are oriented essentially towards the axis of rotation of the basket, while preferably being slightly

  offset. These high pressure nozzles are designed in particular

  bind to more heavily soiled and less sensitive types of vegetables, such as tuber vegetables, potatoes, etc., to make it possible here

  also a quick and thorough cleaning.

  For the control of the washing nozzle, a first pump is preferably provided which provides water

  relatively low pressure. A second independant pump

  pendant can be mounted to provide water

  higher pressure at high pressure nozzles. In addition, absolutely identical pumps can be implemented, regulators or the like being mounted exclusively in front of

the outlet nozzles.

  Another concept is that the basket is

  green of a lid. The jet of water coming out of a nozzle

  flow can hit the underside of this lid. In this way, the agglomeration of salads or vegetables

  floating in the upper zone of the basket may be

  chée. The product to be washed is thus constantly directed again in the direction of the middle of the basket, so that it is constantly present in the looser state in this way.

  basket and can be watered by the different nozzles.

24B285 1

  It is deduced from the aforementioned embodiments that all the different operations involved for the washing, the supply of fresh water, the rotational movement of the basket or disc for its support, the rotational movement of the product to be washed inside of the basket and even the control of the lifting device can be carried out only and only with the water supplied by a water pipe

  normal. It is clear that a device of this type is

  truit, is mounted and simply works.

  According to another feature of the invention,

  Movable diaphragms can be arranged in front of the nozzles.

  In this way, it is possible to adapt the intensity of the jets

  and the angle of impact of these jets to the different types of legu-

my and salads.

  Preferably, the axis of rotation of the basket is arranged vertically. The lower zone of the receptacle, that is to say approximately its lower half, must

  be filled preferably with water before the start and

  during the washing operation. In this way, the most gentle washing is possible. Preferably, the basket is moved during the washing operation cyclically from the

  outside position to the inner position and vice versa.

  Therefore, when the bottom half of the container is filled with water, the vegetables emerge cyclically upward from the container full of water and then dip back into it. This corresponds to a gentle and manual manual washing, according to which the hands move the vegetables reciprocally in a basin filled with water.

  remove from this basin and re-dive again.

  The washing effect can be further improved when, at the same time, fresh water nozzles water the vegetables emerging in the outer zone, that is to say

the upper area of the container.

  Preferably, the container is made substantially

  this cylindrically. Similarly, the basket should be

  preferably made substantially cylindrically.

  To perform the drying operation, the basket can be raised in the outboard position above the water level. A high rotational movement can be communicated to the basket by a control nozzle which acts on finned wheels located below the disk for

  the support of the basket. This gives rapid drying.

  This drying operation can already be performed while the water from the inner or lower zone is sucked. In the bottom area of the container, there can be provided a filter body provided with a filter, through which the

  sewage pump draws water from the container

  and through which also the first

  pump and the second pump suck water for circulation.

  According to another characteristic of the invention, it is possible to provide on the underside of the disk

  for the support of the basket, scrapers of stains

  downwards and which, during the rotational movement

  said disk for the support of the basket, cause the thresholds

  lures from the bottom of the bath in the filter body. We can

  prevent clogging of the container. In addition, the opening

  outlet of the overflow device may be

  green of a soil guide plate arranged such that this outlet opening is only open

  for the flowing water. In this way, it is also possible to

  elegantly an evacuation of defilements

  from the lower and middle area of the container.

  An exemplary embodiment of the invention is shown in the accompanying drawings, in which Figure 1 is a vertical section of a food washing machine; Figure 2 is another partial section of the washing machine of Figure 1 and, in a direction oriented perpendicular to the representation of this Figure 1; and FIG. 3 is a horizontal section of a

food washing machine.

  In the washing machine of Figure 1, a basket 26 is shown in a container 1. The solid line of the basket 26 shows it in the inner or lower position A, while the broken line of the basket 26 represents it in the upper or outer position B. 24a2851 The introduction opening 29 of the container 1 is closed by a lid 3. The lifting device 7 consists of a hydraulic cylinder 35, a piston 41 and a rod of piston 8. The water from a pipe 36 enters the hydraulic cylinder 35. The intake and discharge of water for the hydraulic cylinder 35 are controlled by valves, preferably solenoid valves 15. The upper extension piston rod 8 forms a pin 30 of a narrower diameter. This pin 30 is mounted in a sleeve 31. For this purpose, a sliding bearing 34 is used located near the open end of the sleeve 31, and a tip 33 is at the upper end 32 of the sleeve 31. This tip may, for example, be a single ball that rests on the upper end 32 of the sleeve 31. In this way, a rotation of the sleeve 31 opposing a very small resistance due to friction is possible, as it is desirable for control by hydraulic forces. According to Figure 1, the sleeve is connected to a disc 4 for the support of the basket or is designed in one and the same room with it. The basket 26 is placed on this support disk 4, while being removable. In the zone of the center, the basket 26 comprises a cylindrical void which is adapted to the enlarged lower zone of the sleeve 31. Below the disk 4 for the support of the basket, the fins 5 are arranged, as well as alternatively dirt scrapers 40, scraping the bottom of the container 1 during the rotational movement of the disc 4

for the support of the basket.

  In addition, the level 14 of the water is indicated by a triangle in FIG. 1. The level 14 of the water is controlled via a level regulator 17 actuated preferably electronically, as well as by devices

  overflow 21, 22, 39 (see Figure 2). The bottom of the

  Pient 1 is also designated by 2.

  In addition, the various nozzles or different nozzle systems are visible in FIG. 1, namely the washing nozzles 10, the spray nozzle 11, the high-pressure nozzle 37, and the fresh water nozzles 16 provided at 24B285. t

  in the upper area of the container 1.

  In addition, in FIG. 1, the first pump 9 located next to the intake ducts is distinguished.

  washing nozzles 10 and which draws the filtered water into

  culation from the filter body 24 and brings it under low pressure to the washing nozzles 10. On the other hand, it is also observed, in Figure 1, the second pump 38 located next to the pipes 12 reaching the control nozzle 11, as well as the high pressure nozzle 37. This pump also draws water from the filter body 24 via a branch pipe 43 (see Figure 2). Four fresh water nozzles 16 are shown in the upper zone of the container 1 where they occupy different positions. They are connected to the water pipe 36 via a

solenoid valve 44.

  Finally, the nozzle of

  flow 45 'whose outlet water jet is directed to the face

  bottom of the lid 27 for the basket 26. The nozzle

  flow 45 'is supplied with water of a relative pressure

  low pressure by the first pump 9. Supply of fresh water

  different fresh water nozzles 16 is done through the

  diode-of the solenoid valve 44 and a central pipe 45.

  The supply of water by the pump 9 to the washing nozzles 10 and -

  the inflow nozzle 45 'takes place via the ducts 46. FIG. 2 reproduces the food washing machine of FIG. 1 according to another section, where parts are removed. In Figure 2, there is more clearly in particular the tip 33 of the pin 30. The arrows

  parallel to this pin 30 indicate the movement

  ascending and descending of it. In addition, FIG. 2 shows a pump 23 for wastewater, which

  sucks from the filter body 24 via a cylinder

  dre de filtration 25 and discharges them in the open air or in the network of wastewater. In addition, in FIG. 2, the sheet 22 is still recognized for guiding soil; it is arranged so that the water enters the overflow device 21 provided with an outlet opening 39

  and in this way leads to defilements.

  The water in the washing machine accumulates

  mule in the filter body 24 and is circulated, as already mentioned above, by the first pump 9 and the second pump 38 (see Figure 1). For this purpose, an outlet pipe 47 is used for the first pump 9

  and an outlet pipe 43 for the second pump 38.

  Figure 3 is a horizontal section of the

  washing machine, several parts being removed

  mées. We distinguish here the cylindrical straight section of the

  container 1 on the periphery of which the nozzles are arranged

  10, the control nozzle 11, the fresh water nozzles

  che 16 and the influx nozzle. Is furthermore visible, the filter body 24 provided with the output pipes 43 and 47. for the first or the second pump 9 or 38. Similarly, the sheet 22 for guiding the soil and the outlet opening 39 to the inside the overflow device 21 are clearly distinct in FIG. 3. At the lower left edge of

  FIG. 3 shows a control box comprising

  both the electrical program transmitter. Diaphragms

  my 13 are arranged in front of a few washing nozzles 10; they have openings and are displaceable relative to the washing nozzles 10. Finally, the disk 4 for the support of the basket and the finned wheels 5 are

shown in Figure 3.

  The finned wheels 5 are directed substantially radially inwardly, but are slightly offset

relative to the axis of rotation.

  FIG. 3 again shows that the arrangement of the disc 4 for the support of the basket and consequently of the basket 26 placed centrally on it is not realized

  centrally inside the container 1. This is due to the

  It is possible for the plate 22 for guiding soil, the diaphragms 13 and the adjustable inflow nozzle to be arranged on one side of the container, without having to give up the cylindrical -consolidary construction method. Influx nozzle 11 also has an extension to issue a directed jet

  exactly for the control of the fins 5.

  In summary, the invention relates to a food washing machine in which is provided, to achieve

  a faster washing and drying operation, a

  lifting device of the basket, in order to put it in an inner position and in an outer position close to the introduction opening for the product to be washed.

Claims (18)

  1. Food washing machine equipped with a   positive drying, especially for vegetables and salads, and in which is used for washing and drying, a common basket, substantially cylindrical, to put in place through an opening opening, turning during washing and drying operation, traversed by water during the washing operation and mounted in a common container, permanently fixed, characterized by a lifting device (7) for the basket (26), for the purpose of bring it into an inner position (A) and an outer position   (B) close to the introduction opening (29) of the container (1).   2. Washing machine according to claim 1,   characterized in that the lifting device (7) consists of a pin (30) arranged centrally, able to exit   in the direction of the introductory opening (29) and   gaging in a sleeve (31) engaging the basket (26) or connected thereto.   3. Washing machine according to any of the   Claims 1 and 2, characterized in that the sleeve (31) is centrally disposed in a disk (4) for support   from the basket and is placed on the spindle (30). -   4. Washing machine according to any one of   Claims 1 to 3, characterized in that the spindle (30)   is firmly connected to the sleeve (31) and can be rotation mechanically.   5. Washing machine according to any one of   Claims I to 3, characterized in that the tip (33)   of the spindle (30) applies to the freely rotatable state of   the end (32) of the sleeve (31), preferably through   of high-tech housing, and that a sliding   (34) for the spindle (30) is provided at a distance of the end (32) of the sleeve (31).   6.Machine washing according to any one of   Claims 1 to 5, characterized in that the movement   ascending of the lifting device (7) is controlled by a program. 7. Washing machine according to any one of   Claims 1 to 6, characterized in that the movement   lifting of the lifting device (7) is done by   the connection of the water pipe (36) to the hydraulic cylinder (35) being effected by electro-valves according to the set program and being   interrupted by the simultaneous elimination of water.   8. Washing machine according to any one of   Claims 1 to 7, characterized in that the disc (4)   for the support of the basket comprises fins (5) ori-   to the axis of rotation and submitted for the rota-   disk (4) for the support of the basket, to the jets   water leaving at least one control nozzle (11).   9. Washing machine according to claim 8, characterized in that a drive of the disc (4) for the support of the basket is carried out, via the control nozzle (II), exclusively in the position outside (B) of the basket.   - 10. Washing machine according to any one of   1 to 9, characterized in that for the purpose of   to kill the washing operation, there are arranged, at the periphery of the container (1), preferably at different distances from the introduction opening (29), washing nozzles (10) through which jets of water are substantially directed in the direction of the axis of rotation of the basket (26) while being slightly offset, so that   the basket (26) is slowly rotated and that, simul-   temporarily, a slow circulation of the product to be washed in the basket (26) occurs.   ll.-Washing machine according to any one of   Claims 1 to 10, characterized by water nozzles   cooler (16) connected to the water pipe (36), substantially oriented towards the axis of rotation of the basket (26), arranged in the outer peripheral zone of the container (1) and supplying fresh water constantly or according to the program, an overflow device (21) ensuring the maintenance of a   same level of water in the container (1).   12. Washing machine according to any one of   Claims 1 to 11, characterized by high nozzles 24 to 28-5 1   additional pressure (37) arranged in the area   container (1) and oriented substantially towards the axis   rotation of the basket (26), while preferably being lightly staggered.   Washing machine according to claim 12,   characterized in that the washing nozzles (10) are   by a first pump (9) for the supply of low pressure water and the high pressure nozzles (37), by a   second pump (38) for the supply of water under high pressure.   sion, and in that the control nozzle (11) is supplied with   in water also by the second pump (38).   14. Washing machine according to any one of   Claims 1 to 13, characterized in that the basket (26)   is covered by a cover (27) on the underside of which the water jet strikes at least one inflow nozzle (45 ')   located on the periphery of the inner area of the pick (1).   , Washing machine according to any one of   Claims 1 to 14, characterized by diaphragms   displaceable (13) located in front of the nozzles (10).   16. Washing machine according to any one of   Claims 1 to 15, characterized.   a) in that the axis of rotation of the basket (26) is arranged vertically; and b) in that the inner area, i.e., approximately half of the container (1), is filled   of water before the start and during the washing operation.   17. Washing machine according to claim 16, characterized in that the basket (26) is movable during the washing operation cyclically from the external position.   (B) at the inner position (A) and vice versa.   18. Washing machine according to any one of   Claims 1 to 17, characterized in that the container   (1) is designed in substance circularly.   19. Washing machine according to any one of   claims 1 to 18, characterized in that for the purpose of   to kill the drying operation, the basket (26) is levable in the outer position (B) above the level (14) of the water 248285 1   and can be rotated at high speed by the nozzle control (11).   20. Washing machine according to any one of   16 to 19, characterized in that provision has been made in   the bottom zone of the container (1), a filter body (24) provided with a filter (25) and through which a wastewater pump (23) draws water from the container ( 1) and through which the first pump (9) and the   second pump (38) draws water for circulation.   Washing machine according to claim 20,   characterized in that soil scrapers (40) ori-   downwards in the direction of the bottom of the container are   provided on the disc (4) for the support of the basket.   22. Washing machine according to any one of   claims 1 to 20, characterized in that the opening of   outlet (39) of the overflow device (21) is covered with a sheet (22) for guiding soil, arranged so that the outlet opening (39) is open only for the water flowing.