ES2330292B1 - SUPPORT PROVISION FOR A DOMESTIC APPLIANCE. - Google Patents

Abstract

Support structure of domestic appliance, with a shock absorber located inside a housing for a component without contact with the housing.

The support structure has a base piece (16) and at least one wing (18) attached to the base piece (16), where the wing (18) and / or shock absorber (12) penetrates through a hole (30) in a carcass bottom (10) in the interior space of the housing and is permanently attached with the shock absorber (12), supported the carcass bottom (10) loose on the base piece (16).

Description

Support structure of domestic appliance.

Scope

The invention relates to a structure of support for a shock absorber of a household appliance, as well as a washer and / or dryer machine with such a support structure kind.

State of the art

In household appliances, especially machines washers and / or dryers, dampers are arranged that they hold the wash bowl-wash drum group and dampen movements and vibrations to some extent generated by the movement of the washing drum. The extreme upper of the shock absorber is usually fixed to the group wash tank-wash drum. The extreme bottom of the shock absorber is fixed in a conventional manner directly on a support or transverse support. The piece of union for the shock absorber is configured here conventionally integrally or joined by screws or by welding with the cross support. The washer and / or dryer machine legs they are usually fixed equally to the transverse support or to the base of the housing.

EP 0 933 463 A1 discloses a system of shock absorption that is arranged with a joint by Support two pieces of the casing of a washing machine. In this case, a hollow cylindrical pin that rises upwards, which it is arranged on a projection of a lower part of the housing penetrates a hole that is arranged in a projection of a top piece of the housing. For the damping of shaking from one piece of the housing to the other, between the two protrusions around the plug that is raised up is arranged a rubber ring that is surrounded with a metal ring fixed to the housing.

EP 1 496 147 A1 discloses a device for fixing for fixing a shock absorber of a machine washing machine, which allows the fixing of the Cuba group of washing-drum of a washing machine to the housing of this machine in a simple way. One piece support exposed has two segments, the first segment being fixed to the casing of the washing machine, and being coupled so articulated to the second segment with intermediate positioning of a flexible element one of the shock absorber heads.

The disclosure of EP 1 382 733 B1 refers to to a washing machine with a support frame that houses the group oscillating, in which a washing drum is arranged, in the form of an oscillating unit supported by a shock absorber system spring The washing machine has a housing, which surrounds the oscillating group, and a measurement system to capture the weight of the drum load in the form of at least one transducer of force. The support frame is configured with the oscillating group as a decoupling construction unit of the housing. The housing it is provided with a separate housing frame, the support frame in the operating state of the washing machine on the frame of the housing with intermediate position at least one force transducer By decoupling, no force applied on the housing acts on the oscillating group and, for consequently, on force transducers. However, at conversely, forces are transmitted to the housing, therefore also vibrations, of the oscillating group.

Object of the invention

It is the task of the invention to make available a support structure for a shock absorber of a household appliance, especially for a washer and / or dryer machine, which decoupled dynamically from the housing the shock absorber support so that the Vibration transmission to the housing is minimized. In addition, it has to make available a washer and / or dryer machine that dynamically decouple the housing structure shock absorber.

The task of the invention is solved by a support structure according to claim 1 and by means of a washing machine and / or dryer according to claim 13.

The task is solved especially through a household appliance with a shock absorber located inside a housing for a component without contact with the present housing a support structure that has a base piece and a attached wing with the base piece. The wing and / or the shock absorber permanently attached to the wings penetrate through a hole in a carcass bottom in the interior space of the housing. When this happens, the bottom of Housing rests loosely on the base piece. The vibrations that they are caused in the contactless component and they are diverted from reduced way through the shock absorber with the support structure  according to the invention they are not transmitted or are transmitted only in Very small measure to the housing.

The invention is based on the idea that vibrations that are transmitted during the washing process and in special during the spinning process in the oscillating group, presented by the washing drum, and to a limited extent through the shock absorbers that support the oscillating group are not transmitted or are transmitted only to a very small extent to the Case. For this, the shock absorber is housed in such a way that no is fixedly coupled with the housing or base of the housing, in the that the fixed legs of the machine are provided. Rather it is provided a separate housing for the shock absorber arrangement which is in contact with the carcass bottom in any case by support for. Especially following the trend of new machines washers and / or dryers with increasing number of rotations in the centrifugation process and, at the same time, with increased vibrations, it is very advantageous a decoupling support of the shock absorber and housing, as presented by the support structure according to the invention.

Advantageous embodiments of the supporting structure according to the invention are subject to dependent claims.

In a preferred embodiment of the support structure, two wings joined with the base piece penetrate each through a hole in the housing bottom in the space inside. Advantageously, one end of the shock absorber (leg of the conventional configured shock absorber) can be housed and fixed between the wings. Therefore, they can be used conventional shock absorbers together with the support structure. From alternatively, a second wing may be waived in case of corresponding configuration of the end of the shock absorber.

Preferably, the wings are made of stainless steel, so that in the relatively humid environment of a washer and / or dryer machine cannot develop oxidation in the sustaining components.

In a preferred embodiment, the part base of the support structure is made of elastic material, Especially rubbery. Alternatively, the base piece may be also made of plastic type material, to use the effect  advantageous buffer of materials and minimize transmission of vibrations to the bottom of the housing and, with it, fixed legs of the machine.

Preferably, the base piece may contain also a core of metallic material in which preferably The wings are arranged. Consequently, the stability of the base part or the actual shock absorber support. In addition, due to the higher weight of the base piece, a relative movement between the base piece and the base of the Case.

Preferably, the base part is arranged a torsion securing element for engagement in the base of the housing, so that a sliding and torsion of the housing with respect to the construction group supported by the shock absorber.

Advantageously, the element of torsion assurance, for example several bolts, is arranged on the side of the base piece directed towards the base of the Case. These bolts engage in holes arranged at the bottom of  housing with little movement slack.

In a preferred embodiment, they are arranged two incisions in the base piece. The incisions are extend through the total depth and, starting from the side bordering the bottom of the housing, between a third to two thirds of the total height. The wings with him shock absorber attached or to be attached to them are arranged in the base piece between the two incisions. Through this arrangement, it is advantageously achieved that the area of the base piece between the incisions can move and deform to consequence of the forces or vibrations that act in the cushion independently of the remaining areas. Also, since the torsion assurance elements are not willing in this area, the forces and vibrations mentioned above are transmitted to the carcass bottom only minimally through the assurance elements against torsion.

In another embodiment, the base piece is formed by at least two sections, a middle section where the damper to the base piece and at least one outer section in contact with the outer face of the carcass bottom. Base piece It has a disk shape with the middle section inside. The salt minus two sections are separated by a deep incision of the base piece starting from the side adjacent to the outer face from the bottom of the housing. The surface of the middle section where it find the wings begins where the incisions end, although not necessarily, and is below the outer face of the bottom of the housing without contact with it. Therefore, the carcass bottom It rests on the outer sections. The assurance element anti twist is arranged in the outer section.

Brief description of the figures

The invention is still described by way of example by means of the attached figures. Here, they show:

Fig. 1 a side view of a form of preferred embodiment of the support structure according to the invention;

Fig. 2 a schematic perspective view of a support for a shock absorber;

Fig. 3 a bottom view representation of a schematic arrangement of the support structure and legs in the casing bottom of a washer and / or dryer machine; Y

Fig. 4 a schematic representation of a washing machine with a housing and an oscillating group arranged in its interior supported by springs and dampers.

Description of an embodiment of the invention

Figure 4 shows a washing machine and / or dryer (1) with a casing (2) of the machine with a bottom of housing (10). The oscillating group (3) with washing tank (14) and Washing drum (5) is supported by for example two springs (6) on the top and two shock absorbers (12) on the other hand Bottom arranged symmetrically. One end of the shock absorber (12) is attached to the oscillating group and the end of the shock absorber (12) not linked to the oscillating group, also called the leg of shock absorber (12), is fixedly attached to a support (14).

Figure 1 shows the support structure of a damper of a washing machine and / or dryer. The support (14) as shown in Figure 2, has a base piece (16) and two wings (18) integral to each other. The wings (18) are fixedly arranged on the base piece (16). The base piece is made of rubbery material or plastic type. For the reinforcement and fixation of the wings (18) the base piece (16) may alternatively be partially made of a metallic material. The base piece (16) is subdivided by two incisions (20) into three sections (22, 24, 26). The incisions are continuous by the depth of the base piece (16) and have a height, seen from the top side directed towards the bottom of the carcass (10) of approximately 1/3 to 2/3 of the total height of the piece
base (16).

In the middle section (22) of the three areas (22, 24, 26) formed by the incisions (20) are arranged the wings (18). In the two outer areas, (24, 26) two elements of insurance against each other are arranged torsion (29), for example bolts (29), preferably steel stainless. In addition, the carcass bottom (10) it presents increasingly perforations that in the diameter are something else larger than bolts (29), so bolts can engage with some movement slack in the perforations (no represented).

In the embodiment shown, the wings (18) penetrate through holes or grooves (30) in the bottom of housing (10) inside the housing of the washing machine and / or dryer. A slot can be provided for each wing (18) (30) separately, or alternatively a groove may be provided correspondingly sized in a common way for both wings (18). Here, the carcass bottom (10) is supported loose and, therefore, decoupled on the base piece (16). Likewise, the base piece (16) is held torsion-proof in its horizontal position by bolts (29). The slack of movement of the bolts (29) of the torsion lock is set here in such a way that, in case of the torsion of the piece base (16) possible at most in this way, the wings (18) do not enter in contact with the edges of the grooves (30) and, with it, with the carcass bottom (10).

As shown in the schematic representation in figure 3, the housing is supported through legs (32) fixed to the housing base.

After the wings (18) are introduced through the housing bottom (10), the shock absorber leg (12) it can be fixed to the wings (18) for example by means of a pin (34) blocked or by a threaded joint each of steel stainless.

In an alternative embodiment, the torsion securing element (29) may be configured on the bottom side of the carcass bottom (10). For this, bolts that are bolted, welded together or integrally formed with the housing base, they can engage in complementary holes in the outer sections (24, 26) of the base piece (16). Alternatively, they can also be configured outgoing on the bottom side of the bottom of housing (10). As an example, the projections can be joined by welding in a complementary way to the corners of the piece base (16) to the bottom of the housing (10) and, thus, can limit the lateral movement of the carcass bottom (10) with respect to the support (14) in each of the four directions. The slack of resulting movement does not allow any contact between each of the wings (18) and the groove (30) in the bottom of the housing (10)

In a variant embodiment, instead of two wings (18) can be configured only one wing. By way of correspondingly, the carcass bottom has only one groove (30), through which the only wing penetrates. Shock absorber leg must then be configured accordingly for a force drag union.

Likewise, the disposition of union of the or of the wings (18) with the shock absorber (12) can also be provided under the carcass bottom (10). For space requirement necessary of the joining arrangement, the middle section (22) of the base piece (16) must be made deeper than the two outer sections (24, 26), so that when the bottom of it is supported housing (10) on the base piece (16) the connection arrangement can be arranged without contact with the housing.

If the machine washer and / or dryer form of preferred embodiment is put into operation, due to the washing drum movement vibrations are driven to shock absorber. In the shock absorber, the vibrations are reduced, and the remaining vibrations are conducted through the structure of support next to the shock absorber leg (12) through wings (18) to a base piece (16). The base piece (16) made of material elastic at least partially dampens vibrations and transmits to the base. Through the construction group that contains the wash drum be disposed without contact in the housing, no vibrations are transmitted to the housing, that is, the construction group is dynamically decoupled from the housing. In the area of the support structure, the carcass bottom (10) is rest on the base piece (16). Therefore, and because of the incisions (20) in the base piece (16) the predominant vibrations in the base piece they are not transmitted or are only transmitted in small measure at the bottom of the housing (10). The slack of movement of the torsion assurance is configured in such a way that a contact between shock absorber / wing and the edge of the slot (30) in the bottom of the housing (10). Through which no or almost no vibration acts on the housing, it can prevent a movement, called migration, of the washing machine, especially in the spin operation, and formation can be avoided increased noise

In another embodiment, the base part (16) is formed by at least two sections (22, 24, 26), a middle section (22) where the shock absorber (12) is attached to the base piece (16) and, to the minus an outer section (24, 26) in contact with the outer face of the carcass bottom (10). The base piece is shaped like a disk with the middle section (22) inside. The at least two sections are separated by an incision (20) in depth of the piece base (16) starting from the side adjacent to the outer face of the carcass bottom (10). The surface of the middle section (22) where the wings are found (18) begins where the incisions end, although not necessarily, and is below the outer face of the bottom of the housing (10) without contact with it. Therefore the bottom The housing is supported by the outer sections (24, 26). He torsion assurance element (29) is arranged in the outer section.

List of reference symbols

one

Washing machine

2

Case

3

Oscillating group

4

Cuba

5

Drum

6

Springs

10

Carcass bottom

12

Shock absorber

14

Support

16

Base piece

18

To

twenty

Incision

22

Middle section

24

Outer section

26

Outer section

29

Torsion Assurance Elements

30

Slots

32

Legs

3. 4

Barrette

Claims (15)

1. Support structure of domestic appliance with a shock absorber located inside a housing for a component without contact with the housing, comprising the structure Support in addition: a base piece (16) and at least one wing (18) attached with the base piece (16), where the wing (18) and / or the shock absorber (12) penetrates through a hole (30) in a housing bottom (10) in the interior space of the housing and it is permanently connected with the shock absorber (12), resting the carcass bottom (10) loose on the base piece (16). 2. Support structure of domestic appliance according to claim 1, wherein two wings (18) are arranged together with the base piece that penetrate each one through a groove (30) of the carcass bottom (10) in the interior space of the Case. 3. Support structure of domestic appliance according to claim 1 or 2, wherein the wings (18) are made of steel stainless. 4. Support structure of domestic appliance according to one of claims 1 to 3, wherein the base part (16) It is made of elastic material, especially rubbery. 5. Support structure of domestic appliance according to one of claims 1 to 3, wherein the base part (16) It is made of plastic type material. 6. Support structure of domestic appliance according to one of claims 4 or 5, wherein the base part (16) It has at least one metal core. 7. Support structure of domestic appliance according to one of claims 1 to 6, wherein in the base piece (16) at least one insurance element is provided against torque (29) for engagement in the bottom of the housing (10). 8. Support structure of domestic appliance according to claim 7, wherein the assurance element against torsion (29) of the base piece (16) is arranged opposite of the carcass bottom (10). 9. Support structure of domestic appliance according to one of the preceding claims, characterized in that the base piece (16) is formed by at least two sections (22, 24, 26), a middle section (22) where the damper is attached ( 12) to the base piece (16) and, at least one outer section (24, 26) in contact with the outer face of the carcass bottom (10); the at least two sections are separated by a deep incision (20) of the base piece (16) starting from the side adjacent to the outer face of the carcass bottom (10). 10. Support structure of domestic appliance according to claim 9 characterized in that the middle section (22) is below the outer face of the bottom of the housing (10) without contact with it. 11. Support structure of domestic appliance according to one of claims 9 or 10, characterized in that the torsion securing element (29) is arranged in the outer section (24, 26). 12. Supporting structure of the domestic appliance according to one of claims 1 to 8, characterized in that the base piece (16) has at least two incisions (20) that extend deep starting from the side bordering the outer face of the bottom of the housing (10) and, the wings (18) to which the shock absorber is attached are arranged in the base piece between the two incisions (20). 13. Support structure of domestic appliance according to one of claims 9 to 12, characterized in that the base piece (16) has a disk shape with the middle section (22) inside. 14. Support structure of domestic appliance according to claims 9 to 13, characterized in that the incisions extend between one third to two thirds of the total depth of the base piece (16). 15. Domestic appliance such as washing machine and / or dryer, where at least two support structures are arranged of the claims mentioned above for the shock absorber support (12).