DE1610061A1 - Washing machine based on the drum principle designed for washing and spinning - Google Patents

Description

SIEMEilS-ELECTROGERÄTE GMBH _{Λ o 1 nne Λ}

■■;. '■. . ".., ID I UUv ι

Berlin imd Munich ....- ;. ν .., \

PVA 66/5062

ΒτΠη-Gartenfald

Housekeeping.

19. «19δδ

For washing and spinning, washing machines working on the principle of nacii äem drumming were used.-.- "^ ₁

With Viasch machines that arte-iteeh the Trbinraelprinzip, it is "known from the tub, thawed drum and attached drive motor a .Waschaggregat to produce, which is arranged in the interior of an outer housing. jAt a Trojninelv / ash machine of this type it is known to use a caustic-treated Mltex on all sides to use comprehensive carrying belt to hold the suds container, this carrying belt carrying the drive motor. This belt construction makes it possible to use the bedding container yourself " made of thin-edged material, especially made of plastic

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because the essential forces acting outwards from the machine are absorbed by the carrying belt. The / known .Machine is set up for washing laundry according to the Tromrael principle. In many cases, washing machines working on the drum principle are recently also built so that they are used both for washing and for spinning the laundry. In the centrifugal process, relatively large forces due to the unbalance of the washer occur, which must be absorbed by the construction in a suitable manner. It is known to rigidly connect these washing units, which are intended for washing and spinning, in general, the outer housing, to the machine frame. In other constructions, in particular those in which higher spin speeds are used, the drum unit is elastically suspended or supported by springs in the outer housing.

The invention relates to one for washing and spinning

certain washing machine working according to the drum principle, the one consisting of a tub, drum and drive motor Unit preferably elastic iia inside an outer housing ο is arranged. According to the invention, the shells attached to the outside of the end wall of the tub are watertight the drum bearings on bridge parts of a closed, ballast weight forming frame counteracted by the imbalance forces Means rigidly attached, the frame in turn in the area of its four corners with rigid or preferably elastic Means set in the outer housing ibt. By using one such, the drum bearing shells on the outside of the tub supporting frame, which is preferably made of gray cast iron

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can order, the-unbalance forces "-at the bearings of the The washing drum is picked up directly and sent to the attack points of the Frame guided on the outer housing. At these points of attack are be-i preferred embodiments of the invention springs for the Vibration system attached so that the Trqnmelaggregat in the Is able to absorb the unrest forces well. It is of particular importance that the closed, the tub organized frame at the same time forms ballast weights, which in particular in fully automatic washing machines with elastic suspension for the static center of gravity trimming and to achieve the required Moments of inertia are important for small oscillating movements during spinning; are «These ballast weights will be in the subject matter of the invention, preferably by the shape

"of the cast body consisting of gray cast iron itself. A particularly advantageous embodiment for this is obtained if .the frame assigned to the tub consists of two parts forming ballast weights lying parallel to the drum axis and two bridge parts connecting the ends of these parts with the bearing shells."

The essential for the invention, assigned to the tub Frame construction is of particular importance for a simple Possibility to match the two drum bearings in a well matched one Bring Elueht. That can be done using the invention achieve by simple means that the two drum bearings associated mating surfaces of the frame in a common Operation, preferably by grinding, are made. In the vast majority of cases, you will be that way

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be able to properly establish the necessary warehouse alignment. Han but can also have additional constructive features in the invention Use means to bring the axis position of the two bearings exactly to cover 2U. For this purpose, the bearing shells can be relatively be arranged pivotably to the bridges.

Due to the design of the tub frame that forms the ballast weights at the same time, it is possible to use particularly simple and "Use thin-walled suds containers. As all essential forces through the supporting bridges * of the frame in the area of the drum bearings can pass directly into these rigid structural parts you may even use plastic as a building material for the suds container.

The frame parts used to support the bearing shells can so be designed so that they form downwardly directed feet towards the corners of the frame. In this way two as Support saddle acting frame parts, the cross connection parts in Area below the cylindrical part of the tub can lie so that the machine width does not have to be increased by the frame. The frame is according to the further invention at the same time also designed as a carrier of the drum drive motor. For this purpose, fasteners can be placed underneath the tub, z. B. two brackets connected to the frame parts lying parallel to the axis v / ground, which in turn the Wear drum drive motor. The tub frames can be used for all suspension systems are used, so both with such Systems that work with a V / ash unit suspended from tension springs.

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th as well as ·· in systems with spring struts loaded under pressure work as an elastic component. In this case, the result is a relatively small compact component in which the Fastening points for the drive motor and also the transport lock of the vibrating system can be attached particularly easily and stably. To secure the transport, can be attached to the tub frame appropriate eyes are cast on. The use made possible by using the frame with the saddle of the thinnest stainless steel sheets or plastic and use them from ballast weights, which previously had no other functions, to carrying functions, brings considerable cost savings in the manufacture of washing machines intended for washing and spinning. Further features essential to the invention result from the exemplary embodiments dealt with below.

Figures 1 and 2 show in a front view and in one Side view of a machine intended for washing and spinning, according to laundry treatment machine operating on the drum principle, in which a support saddle frame construction according to the invention is applied. On the outer casing 1 of this machine is on a lower one Support frame 2 with the help of four spring struts. 3 a drum unit set up elastically. The unit consists of a two-part tub, namely the lower part 4 made of thin-walled. according to stainless steel sheet and an upper part 5, which can be made of plastic. Both parts are using a Rubber seal 6 with the help of tension locks, not shown firmly connected. In the tub is the

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Laundry drum 7 installed. In the shape of the plastic top a Waschmitteloinspülrinne 8 and a groove 9 for guiding a tubing lid, not shown, is provided.

The drum unit is held and supported with The aid of a square frame 10 assigned to the tub and encompassing it at the end faces. This frame has Bridge parts 11 and 12 serving as a support saddle in the area of the end faces of the tub, on which the bearing shells are located Support 13 and 14 of the two drum bearings. The lateral connecting parts of the frame 10 extend in the area below of the cylindrical bottom part of the tub and are designed here as Eallastgev / ichte 15. Below the tub There are two brackets 16 and 17 on the frame, which drive the drum motor 18 wear. The motor drives the drum 7 via the Veilrieraenscheiben 19, 20. With 21 is a dem in the figures Tronmelaggregat associated shock absorber called.

The formation of the supporting structure in the area of the drive side The drum bearing is shown more clearly in a section and in a view in FIGS. 3 and 4. With the drum 7 a stub shaft 22 is screwed onto which the V-belt pulley 20 is fastened from the outside with the screw 23. Between the bearing shell 14 and the stub shaft 22 is located on the drive side Ball bearing 24. The bearing shell 14, i3t with the aid of screws 25 and using known per se, for sealing serving washers 26 watertight on the suds container

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wall 4 attached. For watertight completion of the ball bearing side A Butring collar 28 is used. With 29 and 30 stiffening ribs of the bearing shell 14 are designated. The bearing shell 14 is on the mating surface 31 of the frame 11 with the foot 32 using the screws 33 fixed. As for the support of the drum 7 and the tub 4 of the self-contained square frame 10, 11 is used, it is when applying the invention possible, the mating surfaces of the frame associated with the two drum bearings to achieve a good bearing alignment in one joint operation "preferably by grinding. . -

Figures 5 and 6 show an exemplary embodiment in which the The drum unit is elastically suspended with springs in the outer housing. In the outer housing 51 of the machine is for example through Installation of a supporting frame 52 created a sufficiently rigid support structure, on which the drum unit 53 with the help suspended by four springs 55 on the four upper inner tines is. The container surrounding the drum 60 also carries the bearing shells 56 and 5 on both sides? » those on a frame 58 are rigidly attached. This frame forms ballast weights and is also the carrier of the drive: otor3 54 »of the drum drives via a V-belt drive 59. The drum has hinged lids on the shell side, which are opened for loading when the drum is divided into the shown in FIG Operating position. At 62 is the drum container 52 associated upper hopper designated. In the upper cover frame 63 there is a filling opening which can be closed by a cover 64.

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While in which a good storage flight is achieved by the screened alone produced mating surfaces in Figure 3 and embodiment shown in Figure 4, embodiments are also conceivable, "in which Figure 7 the bearing shell is provided relative to the bridge according to the adjustment of the bearing in alignment adjustability a. Here with 34 denotes a bearing shell which can be pivoted relative to the casting 36 of the frame in the angular range cv using the spherical fitting surface 35. In this embodiment, a screw is designated, after which the pivoting movement is possible.

Figures 8 and 9 show two ways of holding Bearing shells 38 with the help of brackets 39 or 40 and elastic Zv / ischenlagen. In the case of Figure 8, a rubber ring 41 is between the bearing shell 38 and the bracket 39 or the frame 42 are provided. The embodiment shown in Figure 9 shows the Use of a rubber intermediate layer 43 and a bracket 40, which have a square shape deviating from the rotational symmetry, in order to to create a rotation lock.

All features dealt with in the description and in the drawing, Objects or examples, individually or in combination, are to be regarded as essential to the invention.

Expectations
9 figures

BATH

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Claims (11)

1. For washing and spinning "intended according to the drum principle working washing machine, whose unit consisting of tub, drum and drive motor is preferably elastic inside an outer housing is arranged, thereby marked, that / the shells of the drum bearings attached to the outside of the end wall of the tub in a watertight manner on bridge parts of a closed frame forming ballast weights through which means opposing the imbalance forces are rigidly attached * and that the frame in turn has rigid or preferably elastic means in the outer housing in the region of its four corners is fixed. 2 .. Arrangement according to claim 1, characterized in that the the Drum bearings associated mating surfaces of the frame to achieve a good bearing alignment in a common operation in the direction the drum axis is preferably made by grinding are. 3 · Arrangement according to claim 1 or 2, characterized in that the bearing shells can be pivoted relative to the bridges to adjust the axis position. 4. Arrangement according to claim 1, 2 or 3, characterized in that that the frame consists of two ballast weights lying parallel to the drum axis and two parts forming the ends of these parts with the bearing shells connecting bridge parts. - 9 -209813/0272,. bad original 5. Arrangement according to claim 1 or one of the following, characterized in that the serving to support the bearing shells Frame parts form feet directed downwards towards the corners of the frame. 6. Arrangement according to claim 1 or one of the following, characterized characterized in that fasteners below the tub, ζ. B. zv / egg bracket with the parallel to the axis Frame parts are connected which carry the drum drive motor. 7. Arrangement according to claim 1 or one of the following, characterized in that the carried by the support parts of the frame The tub is made of thin-walled stainless steel sheets or plastic. 8. Arrangement according to claim 1 or one of the following, characterized in that one or more shock absorbers act on the frame. 9. Arrangement according to claim 1 or one of the following, characterized in that cast eyes on the frame for transport security are. 10. The arrangement according to claim 1 or one of the following, characterized in that between the bearing shells and the bearing they carry Frame parts a rubber liner lies. BATHROOM - 10 - 209813/0272 11. The arrangement according to claim 10, characterized in that the rubber interlayer, the parts of the bearing shells which are used for the holder and the associated frame areas one of the rotational symmetry have a calibrating form. 209813/0 ^ 72 _BAD