ES2241403B1 - FRONT CLOSURE FOR PLASTIC HOUSES OF DOMESTIC WASHERS. - Google Patents

Abstract

The front closure of a plastic tank of domestic washing machine, which includes a front part (1) and a rear part (2), has the peculiarity that the corresponding counterweight (3) is embedded in the plastic material that constitutes the front part (1), this counterweight (3) being integrated in the injection molding process of the front part (1) itself. The coupling or joining of said front part (1) to the rear part (2) of the tank is carried out by interlocking tabs (4) of the front part (1) that are housed in cavities (5) established in the part rear (2), achieving a union without the need for screws or tools.

Description

Front closure for plastic tanks domestic washing machines

Object of the invention

The present invention, as expressed in the set forth in this specification, refers to a closure front for plastic tanks of domestic washing machines, whose fundamental feature focuses on the fact that the part of the tank that constitutes said frontal closure, which engages and joins the rear part of the tank is materialized by a body of plastic in which the corresponding counterweight of the Cuba, all in an injection molding process.

The object of the invention is to provide a front closure as referred to above, of which significant advantages derive such as lower economic cost, more easy assembly, lack of mounting tools, etc., regarding of the existing front closure systems.

Background of the invention

Currently, how to close the front of a domestic washing machine tank is based on the arrangement of a belt metal around the total diameter of the tank.

The tanks that are usually made of plastic incorporate in its front part the corresponding counterweight, so that the Linking the counterweight to that front is done by appropriate fasteners, such as screws, rings clamping, etc.

In addition, the two parts of a plastic tank of domestic washing machine, parts that correspond to the front and that incorporates the counterweight and to the rear on which the Previously, they are usually joined in the center of the tank.

The characteristics mentioned above that determine the current system of frontal closing of tanks of plastic of domestic washing machines, carries with it a series of problems and inconveniences such as a notable distance from the  in front of the open part of the tank, a notable loss of time in the assembly and fixing of the counterweight with respect to the front, as well as the use of tools and accessories to carry out that assembly.

Also noteworthy is the fact that in the closing action there are high tensions, forcing notable mechanical requirements for sealing, so it is more difficult to place and even difficult to automate the closure set.

Description of the invention

The front closure for washing machines tanks domestic object of the invention, presents a series of particularities from which advantages are derived with respect to closures currently used, solving the referred problems in the previous section and providing new benefits.

In this regard, the front closure of the invention, applicable in that type of plastic tanks whose part front incorporates the corresponding concrete counterweight or similar material, is characterized because the referred counterweight in instead of being attached to the referred frontal part, as it happens conventionally, it is integrated into it, being embedded in the own injection molding process, where the commented counterweight remains, but in full if partially, wrapped by the plastic material that constitutes said front part of the Cuba.

On the other hand, the union of that front part to the rear part of the tank is made by a clipated coupling based on tabs or tabs emerging from the front that nest in cavities established for that purpose in the part rear

Said front closure, constituted in the manner described, determines a kind of lid of the tank and not requires binding accessories or of course useful for tightening or assembly of its components, so the advantages are obvious,  The most important being the following:

The front closure as a whole is more Economical, as well as easier and faster to assemble.

A better fixation of the counterweight, to be embedded in the molding process by plastic injection that constitutes the front part, being able to use for different types or models of washing machine tanks Domestic

Also noteworthy is the fact that the new front closure provides a reduction in the distance of the Cuba open to the front itself, as well as a reduction in tensions and even total lack of tools, since no accessory is required to join or fix the part itself front to the back of the tank, since it is done by the clipping that establish tabs derived from the part itself frontal and that are embedded in cavities established in the part rear

Brief description of the drawings

To complement the description that then it will be done and in order to help a better understanding of the features of the invention, are accompanied by the present a set of drawings based on the which innovations and advantages will be more easily understood of the front closure for plastic tanks of domestic washing machines carried out in accordance with the object of the invention.

Figure 1.- Shows a perspective view of the two parts corresponding to the plastic tank.

Figure 2.- Shows a detail in large section scale of the interlocking or clipping form between the part front and back of the plastic tank of the washing machine.

Description of the preferred embodiment

As can be seen in the referred figures, the plastic tank of domestic washing machines in which it is applicable the front closure comprises a front part 1 and a part rear 2, with the particularity that the front part 1, which is plastic nature, incorporates embedded inside the corresponding counterweight 3, as clearly seen in detail of figure 2, with the particularity that this front part 1 It has some pins as projected tabs or tabs 4 on the circular contour of said front part 1, for its interlocking in corresponding cavities 5 established at effect on the back 2, as shown in figure 1, those cavities 5 being made in the flange 6 of the mouth corresponding to that rear part 2.

Claims (3)

1. Front closure for plastic tanks of domestic washing machines, which being applicable in that type of tanks whose front part incorporates the corresponding counterweight, said front part being coupled on the rear part of the tank itself, is characterized in that the counterweight (3) , of concrete or other similar material, is embedded in the body constituting the front part (1), determining a kind of closing cover of the rear part (2) of the tank itself. 2. Front closure for plastic tanks of domestic washing machines, according to claim 1, characterized in that the front part (1) of the tank is made of plastic material covering, at least in part, the counterweight (3). 3. Front closure for plastic tanks of domestic washing machines, according to previous claims, characterized in that the front part (1) has tabs (4) interlocked in cavities (5) provided for that purpose in the rear part (2), determining a means of coupling and joining by clipping between both parts (1 and 2).