DE8016184U1 - COUPLING FOR ELECTRICALLY OPERATED HOUSEHOLD APPLIANCES - Google Patents

Description

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Vorwerk S Co. 5600 Wuppertal 2, June 18, 1980

Interholding GmbH.

Coupling for household appliances operated by electric motors

The innovation concerns a coupling for an electric motor Household appliances, in particular household mixers, in which a detachable connection by means of a plug-in coupling is established between the drive device and the food container is provided for removing the food container from the drive unit and in which the plug-in unit is made of plastic or rubber material (Rubber) is embedded.

Such plug-in couplings are known. For example, there is a coupling octagon known, which is embedded in rubber material. Here, the webs are formed directly from the rubber material, whereby the rubber material itself is vulcanized directly onto the radial outer diameter of the coupling octagon.

The disadvantage of this solution is that the forces dit. from the food to be mixed via the mixer knife and the quick-release axle onto the coupling housing are transferred, the so-called noses made of rubber material are very heavily stressed in bending and shear. This for the rubber material unfavorable form of stress leads to a very early destruction of the plug-in coupling receptacle, in particular due to the thermal stress in heating mode.

To avoid the aforementioned defect, it is the task of the innovation, to maintain the specified coupling system while avoiding destruction shall be.

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The problem is solved by placing the plug-in unit on the outside of the circumference having axially extending webs extending in the radial direction.

In a further embodiment of the innovation, it is advantageous that the webs symmetrically centered on the coupling carrier or that the webs are arranged symmetrically offset on the coupling carrier *

Another idea includes that the webs are shorter in the axial direction are designed as the clutch carrier casing »

In the solution according to the invention, it is advantageous that the webs to reach into the stress zone of the rubber material and thus on all sides are surrounded by the rubber material. In this way, noise or vibration and impact damping is achieved in an advantageous manner. The latter in turn significantly increases the resistance to destruction Dimensions.

A special embodiment is shown in the figures and is described in more detail below.

Show it:

Fig. 1: The partial schematic representation of a plug-in coupling between a drive unit and a Food container,

Fig. 2: a plug-in coupling on an enlarged scale , with the receptacle of the coupling insert is partially shown,

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Fig «3 ί the top view of a coupling insert, which is surrounded by rubber material and with webs are provided symmetrically in the middle,

Fig. 4: the top view of a coupling insert which is surrounded by rubber material and wherein webs are provided symmetrically offset.

In Fig. 1 is a section of a coupling according to the invention in mixers, especially those in which the food to be mixed directly during the The mixing process is shown. Here, the food container 6, which is fixed in a thermally conductive contact base 5, is included this is placed on the heating plate 4. This heating plate 4 extends concentrically around the fan 14, in the center of which the coupling 16 is arranged. This is driven by the electric motor 10, where - how can be seen in Fig. 2 - the motor output shaft 13 centrally in the fan is set, which in turn carries the coupling 16 on its other side. In this clutch 16, the clutch output 12, the the fly knife 8 located in the mix room 7, the axis of which is connected to the bearing 9, drives, inserted. The clutch output 12 is received in a metallic plug-in unit 1, which with the Kupp! ungträger-Ummantel ung 11 is provided. As can be seen from FIGS. 3 and 4, the coupling 16 rests in the fan 14, which receives it centrally in a form-fitting manner.

The output square 15 is inserted into an octagonal recess of the plug-in unit (i). Now to the large ones that occur with such mixers To be able to absorb forces, but at the same time to bring about a considerable reduction in noiseί there is the clutch carrier casing

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11 made of a natural ore vulcanized onto the plug-in unit Synthetic rubber product noted * to be able to absorb the force F j a gain be arranged in the form of the webs 2, otherwise the coupling carrier Um- Coating 11 at the points where the force F acts * shear off Would.

According to FIG. 4, the webs 2 on the plug-in unit 1 are diametrically centered Offset, so that when the force F begins, a higher damping path the webs 2 is achieved, which in turn has a positive effect on noise reduction.

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Claims (4)

• μ f f * f »re * e •. ·. . "I · · ■■ · i <!" SS S ϊ = S = ss s Vorwerk & Co. Interfolding GmbH. Protection claims 1) Coupling for household appliances operated by electric motors, in particular household mixers, in which a detachable connection by means of the drive device and the food container Plug-in coupling for removing the food container from the drive unit is provided and in which the plug-in unit is embedded in plastic or rubber material (rubber) is, characterized in that the plug-in unit (1) on the outside circumferentially extending in the radial direction, having axially extending webs (2). 2) Coupling according to claim 1, characterized in that the webs (2 / symmetrically arranged in the center of the coupling carrier (3) : ind. 3) Coupling according to claim 1, characterized in that the webs (2) symmetrically offset on the coupling carrier (3) are arranged 4) Coupling according to claims 1-3, characterized in that the webs (2) are shorter in the axial direction than the clutch carrier casing (11) are formed.