DE1233815C2 - WASHING MACHINE DRUM WITH A HORIZONTAL SHAFT - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

D06f

German class: 8d-6/60

Number: 1233 815

File number: S 59469 VII a / 8 d

Target reporting date: August 18, 1958

Opened on: February 9, 1967

In washing machine drums with a horizontal axis of rotation, it is known to arrange stub shafts, drawn in the form of a sleeve from the sheet metal of the drum front wall or as an independent one Drawn part formed and connected to the drum front wall by welding. Such out Shaft stubs made from sheet metal are used in conjunction with corresponding bearing points on the housing for storing the washing machine drums. They are also designed on the drive side in such a way that that they form the coupling between the drum drive shaft and the drum itself. at In a known arrangement of this type, the coupling point is formed on the drive side by that a special driver bent from sheet metal is used in the end face of the stub shaft, which protrudes from the stub shaft in the direction of the opposite coupling piece. This Arrangement is unfavorable in that it increases the axial length of the drum and none Securing against axial displacement is given.

In another known washing machine, the coupling parts are in a recess of the Arranged stub shaft, but the washing drum can not easily with this arrangement lifted out of the machine. This drum also has no protection against it axial shifting.

The invention is based on the object of designing the coupling-side stub shaft so that in the case of a compact design and easy removal of the drum, a safeguard against axial displacement is available.

According to the invention, this is achieved in that in the stub shaft on its end face a groove-like recess is located in which a hammer head-like coupling piece attached to the drive shaft can be pushed in, the recess having a cover at one end, behind which engages the coupling piece, whereby the drum is secured against axial displacement. The axial The overall length is shorter in this case than in known arrangements, without the possibility of easy expansion the drum suffers. In addition, the drum is very simple against a axial displacement secured. Finally, the new coupling point results in a particularly stable construction, because the stub shaft itself directs the torque delivered by the drive shaft records.

The arrangement will preferably be designed in such a way that the groove-like depression passes through a slot Washing machine drum with a horizontal corrugated hull

Applicant:

Siemens electrical appliances

Company with limited liability,

Berlin and Munich,

Munich 2, Oskar-von-Miller-Ring 18

Named as inventor:
Rudolf Witt, Berlin

formed in the stub shaft and by a special sheet metal lying within the stub shaft is welded on the inside of the stub shaft and on the side walls of the The flanks of the hammer head are in contact with the slot in the end wall of the stub shaft extends far so that the part of the end wall forms the cover as an extension of the slot. One Another embodiment is that the hammer head receiving recess through the sheet metal of the 'stub shaft itself is formed and to secure against axial displacement of the Drum a special sheet metal is welded to the end wall of the shaft stub.

In the drawing, two exemplary embodiments of the subject matter of the invention are shown. It shows F i g. 1 shows a drum washing machine with a horizontally lying laundry drum shown schematically and cut vertically,

F i g. 2 shows a plan view of the stub shaft attached to the end wall of the drum,

3 shows a section through the stub shaft along the line AB in FIG. 2,

F i g. 4 and 5 one to the F i g. 2 and 3 show an analogous representation of another embodiment and

F i g. 6 shows the coupling point on the drive side according to FIG. 1 in an enlarged view.

The jacket-loaded drum 1 of the machine is mounted on two sides in the tub 2. The tub is enclosed by the housing 26 together with the drive motor 10. On the drive side, the bearing S of the drive shaft S is inserted into the wall 2 a (Fig. 6) of the tub. As a coupling piece, a hammer head 4 is attached to the end of the drive shaft, which works together with a coupling piece that is attached to the sheet metal in the form of a

709 508/58

Claims (3)

Pulled, provided with a flange 7 bushing is designed as a stub shaft 6. This stub shaft is welded with its flange 7 to the drum end wall la and runs in a bearing 8 which is attached to the tub wall la. In the sheet metal of the stub shaft it 6 a slot 9 (F i g. 2 and 3) is recessed, which extends so far in the end wall 11 of the stub shaft that one end of the slot is open and the other end through a part 12 of the Front wall is limited. A special driver 13 is welded into the stub shaft 6 in the area of the slot 9, formed by a U-shaped bent sheet metal provided with two flange parts 14 and 15 is. The flange parts 14 and 15 are welded on the inside of the stub shaft 6. On the side walls 16 and 17 of the driver 13 are the flanks of the hammer head 4. When inserting the washing drum in the tub of the hammer head is placed so that it is between the walls 16 and 17 is retractable. In the coupling position he engages behind the part 12 of the end wall 11, so that a good axial securing of the drum is guaranteed. In the embodiment according to FIGS. 4 and 5 , the bushing 22 forming the stub shaft is also welded with its flange 21 to the end face of the drum. The bushing has a groove-shaped recess 23 which runs transversely through its end wall 25 and which is adapted to the hammer head 4. To secure the axial position of the drum, a special plate 24 is welded to the end wall 25, behind which the hammer head engages when the drum is inserted into the tub. drawn from the sheet metal of the drum front wall or preferably designed as a separate part and is connected to the front wall of the drum, characterized in that a groove-like recess (13, 16, 17 or 23) is located, in which a hammer head-like, on the drive shaft (3) attached coupling piece (4) can be pushed in, the recess (13, 16, 17 or 23) has at one end a cover (12 or 24) behind which the coupling piece (4) engages, whereby the drum counteracts axial displacement is secured. 2. Washing machine drum according to claim 1, characterized in that the groove-like depression is formed by a slot (9) in the stub shaft (6) and by a special sheet metal (13) located within the stub shaft, which is welded onto the inside of the stub shaft ( 14, 15) and on the side walls (16, 17) of which the flanks of the hammer head (4) rest, the slot (9) in the end wall (11) of the stub shaft (6) only extending so far that the part ( 12) the end wall (11) forms the cover as an extension of the slot (9). 3. Washing machine drum according to claim 1, characterized in that the recess (23) receiving the hammer head (4) is formed by the sheet metal of the stub shaft itself and a special sheet metal (24) on the end wall (25) to secure against axial displacement of the drum of the stub shaft is welded. Patent claims: 1. Washing machine drum with a horizontal stub shaft in the form of a book. German Patent No. 278 774;
German utility model No. 1 732 925;
U.S. Patent No. 1,998,566. 1 sheet of drawings 709 503/58 1.67 © BundesdruckereiBerlin