CN100526543C

CN100526543C - Improvement of lid of a top-loading clothes washing machine

Info

Publication number: CN100526543C
Application number: CNB2005101099744A
Authority: CN
Inventors: E·扎德托
Original assignee: Electrolux Home Products Corp NV
Current assignee: Electrolux Home Products Corp NV
Priority date: 2004-09-22
Filing date: 2005-09-21
Publication date: 2009-08-12
Anticipated expiration: 2025-09-21
Also published as: BRPI0503751A; CN1752327A; DE602004017865D1; EP1640494B1; ATE414811T1; PL1640494T3; BRPI0503751B1; US20060059956A1; EP1640494A1; ES2312899T3; JP2006087929A

Abstract

The present invention refers to a top-loading clothes washing machine that comprises an upper lid shutting the washing tub and enabling access to be gained into the interior of the clothes-holding drum rotatably supported therewithin, an outer casing and a hopper situated in correspondence to said lid and possibly provided with a joining member that seals the upper edge of the hopper against the upper edge of the outer casing, a top lid provided with a counter-lid on the lower side thereof, elastic gasket means arranged between the counter-lid and an upper portion of the hopper, a groove extending along the inner surface of the counter-lid and adapted to receive the elastic gasket means, the latter being formed by a ring of a suitable thermoplastic material over-injected into said groove close to the outer edges thereof. The portion of this ring that protrudes from the groove comprises two distinct lips that are oriented inwards and outwards, respectively, relative to the ring itself.

Description

The improvement of the lid of the washing machine of top-loading clothes

Technical field

The present invention relates to a kind of washing machine improved top closure is provided for top-loading clothes.

Background technology

A kind of single function top-loaded washing machine as reference will be described below, as be designed to do washing or dry clothing, also can easily both be combined, forming one can either the washed machine that also can dry clothing, just so-calledly wash-get rid of dual-purpose machine, certain this machine also is to adopt top-loaded.

The top-loaded washing machine has the very top or the top cover plate of traditional approach usually, wherein said cover plate is manufactured into the structure of sandwich usually, promptly a top surface of being made by steel plate usually covers on the level board, simultaneously its underpart also have accordingly one be made of plastics towards and inner low surface or reverse cover plate, for example towards the outer shell upper end open of resting barrel.

Having funnel-shaped piece between described opening and described reverse cover plate, in fact is exactly a funnel, and it plays the effect of guide and safety measure substantially.

As guide, this funnel-shaped piece be designed to prevent to pack into clothing of cylinder is slipped to the load port outside because of carelessness, with the clothing guiding, makes it compulsoryly enter cylinder by described load port; In fact, continuous the combining of top margin on the top of the top of described funnel and the shell of washing machine makes marquis when cover plate lifts, and clothing might be loaded into machine, does not have this device clothing can directly not enter cylinder automatically.

For the purpose of safety, this funnel has prevented that the user from directly entering the inside of washing machine from top, thereby has prevented the situation of conceivable danger and risk.

Yet, the single defence of this reverse cover plate has caused the oozing out of top of the current that produced in the washing machine cylinder closure plate on the tube usually, and the clearance leakage by Buck Plate and funnel top is to the periphery of tube, perhaps the bound fraction leakage between the top edge of the top edge by funnel and the shell of washing machine.

In order to prevent above-mentioned oozing out, the solution of known systems is to provide one deck suitable elastic packing packing ring for the reverse low surface of cover plate, this packing ring is made as the toroidal of sealing and usually by the annular setting, when cover plate is closed, therefore packing ring, blocks and has sealed the passage that is present between funnel inlet and described Buck Plate periphery or the outermost area fully around the upper end of living funnel, as shown in Figure 1, Fig. 1 is the low surperficial perspective view of Buck Plate upwards; Fig. 2 is the schematic cross-section of the part of Buck Plate shown in Fig. 1 in the A-A cross section.

This method is quite effective, and is adapted at industrial volume production.Yet, consider that from the angle of making demand owing to following reason, this method is but wanted the manufacturing step of many strictnesses:

Above-mentioned packing ring is made in-extruding;

The packing ring spare of-cutting, preparation suitable shape;

-on same packing ring spare, apply suitable adhesive linkage;

-ready packing ring spare is installed to the low surface of described Buck Plate go up in the suitable groove.

When combining, all these manufacturing steps have produced the summation of a cost, because the quantity of the step that need carry out separately and required finishing institute's time in steps can not be accepted it by height competition and the industrial manufacture process of high automation field that this washing machine is made.

Summary of the invention

Therefore, a main target of the present invention just provides the washing machine that clothing is loaded at a kind of top, wherein, can simply finish Buck Plate for providing the manufacturing step of low packing ring spare, manufacture process allows maximum automation cheaply, does not need to bear any shortcoming or deficiency for the kind of function.

According to the present invention, to achieve the above object and other purpose, by following description will be more clear, and the washing machine of the top-loading clothes that these purposes will be by making technical characterictic with merging described in claims and characteristic reaches.In a word, the features and advantages of the present invention will be easy to be understood by the description that the mode below in conjunction with the example of the unqualified property of accompanying drawing provides.

Description of drawings

The symbolistic top perspective on its top when its cover plate of washing machine that Fig. 3 loads clothing for the top is in and partially opens state;

Fig. 3 A is the perspective view on the low surface of the cover plate shown in Fig. 3, and shown in the figure is its state that makes progress;

Fig. 4 is along the cross sectional view along the Z-Z cross section according to Fig. 3 A of the part of Buck Plate of the present invention;

Fig. 5 is the sectional view that is similar to another the improved embodiment shown in Fig. 4 according to Buck Plate of the present invention;

Fig. 6 and Fig. 7 are respectively the cross sectional view according to two other embodiment of Buck Plate of the present invention;

Fig. 8 is the schematic diagram according to another improvement embodiment of the packing ring spare of Buck Plate of the present invention;

Fig. 9 is the embodiment view that loads the clothing washing machine with corresponding another the different top of Fig. 3, and its cover plate is in the state that partially opens.

The specific embodiment

With reference to Fig. 3 and Fig. 3 A, loading in the clothing washing machine according to top of the present invention, a washing drum 1 is provided, the wherein rotatable inside of having supported is used to hold the also cylinder of washing clothes, can enter internal cylinder picking up clothing from cover 2 from top, shell 3, funnel 4 be positioned at cylinder 1 upper opening above, its top is connected with the top edge 5 of shell 3, and top cover plate 6 has a reverse cover plate 7 of low layer.

With reference to Fig. 4, on the low laminar surface 8 of reverse cover plate 7, have a groove 9, this groove along when cover plate 6 is closed roughly the annular region around the loading opening of funnel 4 stretch.

Use a large amount of now super notes technology of using, one of moulding has the packing ring 10 that suitable thermoplastic elastomer material is made in groove 9, wherein said packing ring not only filled described groove also along the direction of extending to outer process; Therefore, when cover plate was closed, described packing ring was to lower convexity, made exterior protrusions 11 form the ring of a sealing, flexible described Buck Plate kept apart with relevant plate and described funnel.In addition, formed isolation is by along the evenly continuous stretching, extension in the formed fixing cross section of groove 9.This feature also makes can obtain the airtight sealed effect between inner funnel and the space outerpace when cover plate is closed, owing to have this mode of the cover plate of described seal washer means the conduct one " stopper " that it can be real is injected in the funnel.

Can know easily that above-mentioned super notes technology can be served purpose of the present invention completely effectively, reduce the generation cost that packing ring is provided described in the preamble effectively, reach a kind of desirable mode.In fact, cast the reverse cover plate that operation can obtain to have completely packing ring very easily, and do not need to increase any operation or cause any interruption in the manufacture process by single super notes.

And above-mentioned super notes are cast operation can be by first program of casting of casting-cast-optimize as injection, and oppositely cover plate and described packing ring are annotated by super, thereby form reverse cover plate at once, for example before allowing reverse cover plate sub-cooled.In fact this be exactly to have realized obtaining simultaneously the low cost of whole manufacturing process and the important improvement of final up-to-standard product, because if super base supports of annotating is heated words earlier, so viscosity-as super annotate material to bond on this pedestal will be more effective.

Above-mentioned invention can also realize many useful improvement.For example, improvement at first is can make to be subdivided into two

independent flange

11A and 11B from the outstanding described ring washer 11 of described groove, as shown in Figure 6, these two flanges with respect to packing ring self respectively towards interior and outside, thereby further improved the elastic damping effect, they have also prevented passing through of air or foreign matter from both direction.

Second improvement be can make the thickness of packing ring from the rear end of packing ring of its articulated position-as described-to its relative end-as the increase of the front end of packing ring-gradually.Fig. 6 and Fig. 7 illustrate the cross sectional view of the packing ring with two other 11A of branch and 11B respectively, shown in Fig. 6 be packing ring and the consistent profile of " 11A " side, otherwise shown in Figure 7 are packing ring and the consistent profile of " 11B " side.Should also be noted that under first kind of situation (Fig. 6) the height m that described packing ring has is lower than the height M of another packing ring in the side shown in Fig. 7.

This solution is normally first-selected, and because load, stress and vibration all are to apply from the top, even the speed of closing, and therefore, oppositely the speed of the packing ring bump funnel on the cover plate is usually all greater than the cover plate of front end area.

Should be concise and to the point point out used existing extrusion technique and is not easy to produce the packing ring that is of different sizes, and wherein, packing ring at first is extruded, and cut and is connected on the reverse cover plate by length then.

Another improvement is, provides a material to interrupt or gap 12 at the section from the packing ring of groove 9 protrusions, as shown in Figure 8.This gap allows gas therefrom to pass through when cover plate is closed.

In preferred embodiment, above-mentioned gap is positioned at the rear portion of packing ring, as is positioned at the opposite side of packing ring towards the user.This improvement provide a kind of for produced in the washing drum air and current and prepare from the discharge that the machine cover plate takes place to leak, these (leakages) must discharge under the situation of other intrawares that do not influence washing machine.In addition, this gap is set, just can directly discharge current from the position that the user stands usually by the washer portion branch of selecting rear side on the cover plate.

Experimentally also further find, under optimal condition, in order oppositely to surpass the described packing ring of notes on the cover plate, an only result who obtains is when oppositely the material of cover plate 7 is polypropylene, simultaneously, be used for the super thermoplastic of annotating packing ring 10 and comprise propylene, rubber, additive, oils etc.

With reference to Fig. 9, should also be noted that in certain embodiments funnel 4 does not directly combine with the top of shell, but it still stretches upwards up to it and combines with a conjunction 14, conjunction 14 by with the combination and the sealing that keeps funnel that combine of the outer upper edge 5 of described shell 3.In this case with described various embodiment above in the identical or similar packing ring 10 of packing ring type, stretch along Buck Plate and described conjunction 14 in the time of in being applied to present embodiment.

Claims

1, a kind of washing machine of top-loading clothes perhaps in conjunction with the drier of laundry function, comprising:

Be used to hold the cylinder body (1) with washing clothes,

By above-mentioned cylinder body institute's swivel bearing and the cylinder that covers, also have a cover (2), enter described cylinder inside by this cover,

Shell (3),

Be positioned at the funnel (4) with described cover (2) appropriate section, have top edge (5) sealing of conjunction (14) the top edge and the affiliated shell (3) of described funnel,

Have the upper cover plate (6) of reverse cover plate (7) at downside,

The elastic washer device is positioned between described reverse cover plate (7) and described funnel (4) top, perhaps is positioned between described reverse cover plate and the described conjunction (14),

Groove (9), stretch along described reverse cover inner surface, and be suitable for holding described elastic washer device, it is characterized in that: this elastic washer device is completely annotated in the described groove (9) by the suitable thermoplastic of a circle and is formed, stretch on its low surface along described reverse cover plate (7), and contiguous with its outward flange.

2, the washing machine of top-loading clothes as claimed in claim 1, it is characterized in that: described ring washer (10) comprises two independent flange (11A from the outstanding part (11) of described groove (9), 11B), direction with respect to described packing ring (10) one of them (11A) is inside, and another (11B) then direction is outside.

3, the washing machine of top-loading clothes as claimed in claim 1 or 2, it is characterized in that: the thickness of the exterior section of described packing ring (10) is unfixing, thickness of (b) part is bigger around away from the packing ring of described upper cover plate (6) hinge, and littler near the segment thickness of (a) around the packing ring of described hinge.

4, the washing machine of top-loading clothes as claimed in claim 1 is characterized in that: described ring washer (10) has interruption or gap (12) of material, and allowing when the cover closure, gas discharges to the external world from described funnel.

5, the washing machine of top-loading clothes as claimed in claim 4 is characterized in that: the interruption of described material or gap (12) are positioned at the rear side of described packing ring (10).

6, the washing machine of top-loading clothes as claimed in claim 2 is characterized in that: described ring washer (10) has interruption or gap (12) of material, and allowing when the cover closure, gas discharges to the external world from described funnel.

7, the washing machine of top-loading clothes as claimed in claim 6 is characterized in that: the interruption of described material or gap (12) are positioned at the rear side of described packing ring (10).

8, the washing machine of top-loading clothes as claimed in claim 3 is characterized in that: described ring washer (10) has interruption or gap (12) of material, and allowing when the cover closure, gas discharges to the external world from described funnel.

9, the washing machine of top-loading clothes as claimed in claim 8 is characterized in that: the interruption of described material or gap (12) are positioned at the rear side of described packing ring (10).