DE1585863A1 - Household washing machine - Google Patents

Description

PHB.31.670

Dipl-Ing. F.-J. COPPER MAN

Patent attorney 1 R ft R ft R Ί

Applicant: ti V. Philips 'Gloeilampenfabrielcefl' °

File No. pjrn., 31, 6
Registration from: Γ> 3, Ax> ^{r /} .

"House shark twaschxaaachine".

The invention relates to a washing machine with Jlaushalt a cylindrical perforated washing drum, which around a substantially horizontal axis is rotatable in a container, is resilient in one Assembled from the jacket, with the circumference in the troaial surface an opening for inserting (and removing) the items to be washed » is provided and the drum of a Jülektromotor ait tintr

y low spin speed for washing using the "tumbling effect" and at a higher speed to the Spin that objects can be propelled.

One of the advantages of such a Waach Maochina is that

the ./aaohtronmol can be supported on each side of V / ellen, so

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that the bending forces exerted on the circular end walls of the drum due to an imbalance in the mass during spinning are less than with a drum which is to be introduced on the front side set up and trimmed on only one side by a single shaft is.

The present invention aims at a storage structure and one To create storage arrangement «when using the washing drum Very thin stainless steel can be made without the need for additional parts to stiffen the circular windings are by reducing the bending forces exerted on these walls to a Minimum value will be reduced «By using very thin stainless steel, a design is obtained that is cheaper than the previous one washing drum used is.

According to the invention, a washing machine of the type described above consists of a substantially cylindrical washing drum with substantially flat circular walls, the drum being rotatably mounted by means of bearings located apart and located in the washing filter, and each bearing being in the plane of the respective window wall are preferably anti-friction bearings, which are housed in Qehfiuseη that the 3ndwa * ends of the washing vessel loading 'can be strengthened and projecting the NaOH inside, wherein the inner * \ rings of the bearings on each side of the drum shaft wear, which in

bowl-shaped supports can be attached, which are firmly attached to the circle Shaped walls of the drum are connected · Preferably «ine [this shaft out of the washing container to attach a belt ·

saheibe, with the help of which the washing trough: oil can be rotated, ί ; The invention will now be made with reference to the accompanying drawings

example a / cis explained in more detail. Js show: BAD ORIGINAL

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Fig. 1 is a partially sectioned front view of a washing machine according to the invention »

Fig. 2 is a partially sectioned side view, and -Fig. 3 shows the storage structure of the washing drum on an enlarged scale.

In the drawings, Figures 1 and 2 show the main parts of a washing machine according to the irfindung _f The machine has a Ausse-n cl 1, in which a composite washing tank 2 by means of four springs, of which only two (3§ 4) in Fig. 1 are shown, is resiliently suspended · Vibrations of the container are controlled by dampers 5, 6, which extend between the container and the jacket base »A perforated washing drum? is using in the walls dee container 2 accommodated bearing structures 8, 9 rotatably mounted and is driven a Riementtbersetzung by an electric motor 10 Ober, wherein mounted on the motor shaft, a centrifugally acting ixpansionsausdehnungsriemenseheibe I3T _t and wherein the belt 11 xpansionsausdehnungsriemenscheibe a driven ^ 12 drives, which acts like an idle pulley, while the belt 13 cooperates with a belt shaft 14 on a shaft attached to the washing drum 7 »

The perforated washing drum made of thin stainless steel 7 has an essentially cylindrical shape and has a pair of circles shaped walls 15, 16 which may be constructed in any suitable manner, e.g. by folding or crimping Uafangsnänten or by welding, are attached to the cylinder wall of the drum. Each circular i £ n & - wall has a central opening limited to an axial flange 17, 18 to accommodate a BChttsselfBrmigen interacting with a shaft Link 19 »20 with a radial flange 21, 22 of, e.g.

Rent 23 , is attached to the relevant side wall 15, 16. !

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The bearing structure lying to the right of the vertical center line in FIG. 3 will now be described. The structure consists of a hollow cylindrical housing 24 with a radial flange 25, which cooperates with 3efeEtigung3riemen 26, with the help of which a member 27 for stiffening the container wall is clamped to this wall, the bearing housing 24 protrudes inwards and extends through the UofJung in the wall 16 of the washing drum, in ball bearing 28 is fastened at the outer end in the housing and a similar bearing 23 is located in the housing in such a position that it lies in the plane of the end wall 16. .Jine drive shaft 30 is carried by the inner rings of the bearings 26, 29 and is provided with .riffles at its outer end for fastening the pulley 14. The inner end of the shaft is also corrugated so that it can cooperate with a bushing 31 which has a radial flange 32o which is fastened, z, B, to the sciitloal-shaped member 20 by rivets y $. The cylindrical outer surface of the bush 51 is machined very precisely, so that excessive wear of a resilient connector 34 held in the inner end of the bearing housing 24 is prevented. This locking ring 34 prevents water from the washing container from penetrating into the bearing housing 24. The tube-shaped member 20 is surrounded by a plastic sheath 35 ″ with a metal stiffening plate 56, a fastening screw 37, which cooperates with a threaded hole in the shaft 30, holding the sheath 35 and the shaft 30.

The bearing structure 0 (to the left of the vertical center line in FIG. 3) has a similar design, the corresponding parts being denoted by the same reference numbers. In this case the support shaft is shorter, since it does not need to supply a drive, while only a single bearing 2) is used. This bearing is located in

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the: level of the circular inner wall 15 of the washing drum.

3s it should be evident that the arrangement of the bearings 29 ider . ^ level of the respective u'ndwand the washing drum on the circular Walls exerted bending loads to a minimum value are deposited so that essentially only tensile stresses are exerted on these walls. This allows the circular -indwand from stainless steel can be produced with less strength than would otherwise be the case.

In the case of the storage structure described above, the washing drum can be assembled and disassembled in the Wasoh container aonnell. The schU33elföriaigen links 19, 20 with those riveted to 3tel'le Bushings 31 are each threaded through the rivets 23 on the Ji nd in question 16 attached before these walls with the the cylindrical · wall of the drum forming cladding are connected. After the drum is assembled has been, it is placed in the washing container and the bearing housings 24 are inserted through the openings in the container wall, wherein the corrugated shaft 30 cooperates with the bush 31 on one side and the short shaft on the other side also into the bushing 31 of the bowl-shaped member 19 is added »Die KunststoffUmhüllungen 35 are over the relevant bowl-shaped links 19 »20 joined together and are held in their position by the fastening screws 37 brought * The pulley 14 is attached to the corrugated shaft 30 · Tigt and is supported by a 38 Fortification Sohraube.

In a practical Ausführungsbeiapial the washing drum had a diameter of 40 ca and a width of 2β cm, made of stainless steel with a thickness of 0.55 ωΐι. This drum] could contain 4 kg of objects and could work with a spin speed of 1000 revolutions / min.

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cold is vial higher than was previously possible and the above Bearing arrangement provides an essential support to this important one Improvement in the spinning process.

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Claims (3)

PHB.31.670 Patent Grant 1 «washing machine with a cylindrical perforated washing drum, which can be rotated around an essential horizontal axis in a container is, which is resiliently mounted in an outer casing, with on the circumference In the drum surface an opening for the --Jinf watch (and ^ ntferaf ^ the items to be washed is provided, and the drum is driven by an electric motor with a relatively low speed of rotation for washing using the "tumbling effect" and with a higher one Speed for hurling the objects can be increased, characterized in that the cylindrical drum is provided with almost flat circular ^ ndwauten, while the drum apart with the help lying and mounted in the washing tank bearing is rotatably mounted, each bearing in the 3plane of the respective iindwand lies. 2. Washing machine according to claim 1, characterized in that the Bearings anti-friction roller bearings, which are housed in housings, which can be attached to the interior walls of the wash basin and which protrude inwards 3. Washing machine according to claim 2, characterized in that the Inner rings of the bearings on each side of the drum carry shafts that are attached to Echilse-shaped nozzles can be attached, which are firmly attached to the Circular mouth walls connected to the drum. ^ 4 · Washing machine according to claim 3 »characterized in that a j the shafts mentioned protrude from the washing container for attachment ί a pulley that rotates the washing drum ■ can. BADORiGINAL «'109816/1672 Blank page