FR2789290A1 - DISHWASHER PROVIDED WITH A BALLAST DEVICE - Google Patents

Abstract

The invention relates to a dishwasher provided with a ballasting device. The dishwasher comprises a tub (1) arranged on a base (4), inside which there are various components and connections. To ensure easy access to these components and optimize the counterweight effect of the ballast mass (2), an opening (40) is provided at the rear of the base (4) and the ballast mass (2) is fixed. by fixing means (3) in said opening to serve at the same time as a closing part. The invention applies in particular to dishwashers.

Description

The invention relates to a dishwasher provided with a device for

  ballast comprising a ballast mass fixed to the structure of the washing machine

  dishes to serve as an anti-tip counterweight.

  In order to ensure the stability of dishwashers, it is known to provide a ballast mass serving as a counterweight, in particular when the door is opened and the baskets come out. This ballast can be located either inside the base of the device, or in the upper part or the lateral parts. However, a first drawback of these embodiments is that the position of the ballast is not optimum to ensure the best possible counterweight. Another disadvantage is that, in the case of mounting in the upper or lateral position very close to or against the tank, shocks during handling and transport can have harmful consequences of the

  effect of stress applied to the tank by the ballast.

  On the other hand, it is necessary, in dishwashers, to be able to access the components (pumps, solenoid valves, etc.) and their connections (electrical or piping) which are mainly placed under the tank inside. of the base. This usually requires the dismantling of a panel, wall or hatch, so some

  number of operations during maintenance operations.

  The object of the invention is to remedy these various drawbacks by using the ballast mass as a closing part for

  an access opening located at the rear of the dishwasher.

  According to the invention, there is therefore provided a dishwasher provided with a ballasting device comprising a ballast mass fixed to the structure.

  dishwasher to serve as an anti-tip counterweight, said dishwasher

  crockery comprising in a known manner a tank situated above a base in which a number of components and connections are arranged, said dishwasher being characterized in that said base has a rear opening allowing access to said components and connections , and in that said ballast mass is

  provided and fixed to serve as a closing part of said rear opening.

  According to another aspect of the invention, there is provided a dishwasher provided with a ballasting device comprising a ballast mass fixed to the structure of the dishwasher to serve as an anti-tilt counterweight, said dishwasher comprising known manner a tank located above a base in which are disposed a number of components and connections including a motor pump, said dishwasher being characterized in that said motor pump is fixed on said ballast mass to contribute by its weight to said mass and to cushion the

  vibrations due to said motor pump.

  The invention has several advantages. On the one hand, the ballast mass is placed completely at the rear of the dishwasher, as close to the wall as no other closing part exists between the ballast and the wall, and as low as possible. This ensures maximum ballast efficiency for the stability of the device. On the other hand, no other removable system (hatch, casing) or not (wall ...) is necessary to close the lower part

  rear of the dishwasher since it is the ballast mass that ensures

  even the closing function. Thus, access to the internal components and connections is greatly improved and simplified, the removal of the ballast being easy. In addition, the mounting of the ballast mass according to the invention is a

  stiffness factor for the entire dishwasher.

  The invention will be better understood and other characteristics and

  advantages will become apparent from the following description and the drawings

  seals o: - Figure 1 is a block diagram of a dishwasher according to the invention; - Figure 2 schematically illustrates a possible embodiment; and - Figure 3 is an embodiment illustrating another aspect

of the invention.

  The block diagram in Figure 1 shows a washing machine

  crockery in side view comprising a tank 1 disposed above a base 4 inside which there is generally a number of components, such as pumps, solenoid valves, etc., and their connections, electrical (wiring ...) and piping. The base 4 has, at the rear of the dishwasher, an opening 40 which allows access to the components and their connections. To close this opening 40, the invention provides for using the ballast mass 2 which is shaped on the one hand to ensure its ballast function (volume, weight, material) and on the other hand to ensure the closing function of the opening 40. The ballast mass 2 is fixed in place by fixing means ensuring that it is held in place. These means can be of various types and can for example be constituted by one or more screws 3 passing through the ballast mass to be screwed to the base 4 or to elements which

are made united.

  Thanks to the position of the mass 2 as far back (and as low) as possible, an optimum counterweight effect is obtained to avoid any tilting forwards. On the other hand, the rear of the dishwasher is closed without any additional element, such as a wall or hatch,

  while allowing easy access to internal components.

  Preferably, as shown very diagrammatically in FIG. 2, it is possible to use as fixing means a single screw 3 disposed substantially in the central part of the ballast 2. Instead of providing a hole in the ballast mass for the passage of the screw 3, one can simply provide an oblong slot 20 starting from the lower part of the ballast and adapted to the passage of the screw 3, to simplify the production of the molded ballast. The ballast mass is shaped to ensure its closing function while dimensioning it so as to avoid any contact with the tank. This eliminates the harmful effects of the ballast on the tank in the event of impact

  during transport or installation of the dishwasher.

  The ballast mass can be of any usual material, such as

  metal, agglomerates or concrete. It can preferably be in molded concrete.

  In FIG. 3, an embodiment of the invention has been illustrated a little more precisely. We find, with the same references, the elements already encountered previously, namely the base or chassis 4 with its rear opening that comes to close the ballast mass 2, the screw 3 for fixing and the tank 1 which rests on the base 4 when the dishwasher is assembled. The assembly is maintained and closed in particular by the side walls 7 and 8, which may have returns more or

  less important you! that return 80.

  To carry the maximum weight to the rear, the heaviest components and, in particular, the motor pump 6 can be carried there and take advantage of the presence of the ballast mass 2 ensuring good rigidity for suspending the motor pump there. This aspect of the invention has at least a double advantage - on the one hand the mass of the motor pump carried back contributes to the efficiency of the ballasting and makes it possible to reduce the mass of ballasting 2 on the other hand, the mass of ballasting 2 to which the motor-driven pump 6 is suspended makes it possible, thanks to its mass and its rigidity, to absorb at best

  vibrations due to the operation of the motor-driven pump.

  In practice, as shown in FIG. 3, a bracket 5 can be provided on which the motor pump 6 is suspended by means of a silentbloc 60 immobilized on the one hand in an opening of the bracket 5 and on the other hand supporting the pump by means of a finger integral with the latter and engaging in a central hole in the silentbloc 60. The screw 3 for fixing the ballast mass 2 passes through the rear wall 42 of the base 4 and is screwed in. 51 in the vertical part of the jib 5 thus immobilizing together the ballast mass, the chassis and the jib, therefore the motor pump. A lug 52 of the bracket prohibits the

  rotation of the stem when screwing or unscrewing the screw 3.

  Such mounting of the motor pump on the ballast mass is very

  advantageous compared to conventional mounting thereof on the chassis.

  Indeed, in these conventional arrangements, it is necessary to reinforce the chassis to support the weight of the motor-driven pump and ensure the correct transfer of forces to the feet of the dishwasher resting on the floor. In addition, the ballast mass ensures maximum damping of vibrations due

at the pump.

  Of course, the invention is not limited to the examples described.

  In particular, one could imagine removing any fixing screw, the ballast mass and the opening of the base which may have complementary shapes such that the mass fits and / or locks adequately. For example, one method may consist, when mounting the dishwasher, of vertically fitting the ballast into an appropriate housing in the base at the bottom of the rear opening and then holding it in position by positioning the tank on the chassis,

  The tank-chassis assembly then being blocked by the side walls of the washer

  dishes that are attached to the front and back. For disassembly, the side walls can simply be disassembled at the rear. We can tilt the tank slightly forward, which will release the ballast mass that we

  can be dislodged by lifting it and then withdrawing it backwards.

  Another example could be to provide a ballast lock

  directly by the two side panels.

  Another example could also be to provide a lateral interlocking by one side of the ballast on the edge of the rear opening of the base where the ballast can be engaged from the rear, the locking in place being then ensured by the return of the wall opposite side. In the two previous examples, for disassembly, it suffices to disassemble the side wall (s) at the rear and move them apart thanks to their flexibility to release the

ballast mass.

61 2789290

Claims (10)

  1. Dishwasher provided with a ballasting device comprising a ballast mass (2) fixed to the structure of the dishwasher to serve as an anti-tilt counterweight, said dishwasher comprising in a known manner a tank (1) located above a base (4) in which   are arranged a number of components and connections, said washer   tableware being characterized in that said base (4) has a 1 rear opening (40) providing access to said components and connections, and in that said ballast mass (2) is provided and fixed   to serve as a closing part of said rear opening (40).   2. Dishwasher according to claim 1, wherein said components include a motor pump (6), said dishwasher being characterized in that said motor pump (6) is fixed on said mass of   ballasting (2) to contribute its weight to said mass.   3. Dishwasher according to one of claims 1 or 2,   characterized in that holding means (3.20; 80) are provided for   fix the ballast mass to said base (4).   4. Dishwasher according to claim 3, characterized in that said holding means comprise at least one screw (3) passing through the ballast mass.   5. Dishwasher according to claim 4, characterized in that each screw is housed in a slot (20) sensiblemenrit oblong and   extending through the ballast mass from its lower part.   6. Dishwasher according to one of claims 4 or 5,   characterized in that the motor pump (6) is suspended from a bracket (5) which is fixed to the ballast mass (2) and to the base (4) by said screw   (3) fixing the ballast mass. 7 2789290   7. Dishwasher according to any one of claims 1 to   6, characterized in that said ballast mass (2) is obtained by molding a material in the form required to ensure the closure of said opening (40).   8. Dishwasher according to claim 7, characterized in that   said ballast mass is made of concrete.   9. Dishwasher according to any one of claims 1 to   8, characterized in that said ballast mass (2) has a shape such that it comes to fit vertically in a corresponding housing of the base (4) in the rear opening of said base and is   1 maintained in position by said tank (.1).   10. Dishwasher according to any one of claims 1 to   9, characterized in that said ballast mass (2) and said rear opening of the base (4) have complementary shapes such that the ballast mass is supported by the base and maintained in   position by the return (80) of at least one of the side walls (7, 8) of the washing machine dishes.