EP3032370B1 - House device control assembly, gas valve and cooker - Google Patents

Description

The present invention relates to a home appliance operating arrangement, a gas valve and a stove.
A gas stove or a gas hob usually has a gas valve which can be actuated by means of an actuating shaft. An actuating knob may be provided on the actuating shaft. The actuating knob is plugged onto the actuating shaft. A distance between a lower edge of the actuating knob and a cover plate or top sheet of the gas range can be defined by how far the actuating knob can be pushed onto the actuating shaft. For example, in order to realize different distances between actuating knob and cover plate in different models of gas cookers, it is necessary to provide different operating knob available.

The US 3,805,637 A describes an operating arrangement according to the preamble of claim 1, with an operating shaft and a plugged onto the operating shaft operating knob, which is fastened by means of a leaf spring-shaped fastening device in a plurality of axially offset positions on the actuating shaft.
The US 5,893,298 A shows an operating arrangement with an operating shaft and an attached to the operating shaft operating knob. The operating shaft has an annular groove, into which a fastening device for fastening the actuating knob engages on the actuating shaft.
Against this background, an object of the present invention is to provide an improved home appliance operating arrangement.
Accordingly, a domestic appliance operating arrangement with an operating shaft, a rotationally fixed on the operating shaft arranged actuating knob and a fastening device is proposed. The actuating device is adapted to fix the operating knob on the actuating shaft, wherein the actuating knob at least two receiving portions for receiving the Fastening device, wherein the at least two receiving portions are positioned so that the actuating knob can be fastened in at least two different axially offset positions on the actuating shaft, and wherein the actuating shaft has an annular groove, in which engages the fastening means.

As a result, a variant of the actuating knob can be used for a wide variety of household appliances. As a result, the actuating knob is used variably and can be inexpensively manufactured in large quantities.

According to one embodiment, the actuating knob for displacing the same between the at least two positions along the operating shaft is axially displaceable.

In particular, the actuating knob in each of the positions can be locked by means of the fastening device on the actuating shaft.

The actuating shaft has an annular groove, into which the fastening device engages.

Preferably, the fastening device has a U-shaped geometry. Legs of the U-shape are adapted to engage in the annular groove.

According to a further embodiment, the annular groove has a deduction slope for removing the fastening device from the operating shaft.

In particular, the deduction slope is inclined so that a withdrawal force for withdrawing the actuating knob and the fastening device is greater than 50 N. As a result, the actuating knob is captively attached to the operating shaft.

According to a further embodiment, the actuating shaft has an insertion bevel for pushing the fastening device onto the actuating shaft.

In particular, the insertion bevel is inclined such that an urging force for pressing the operating knob and the fastening device is less than 30 N. hereby Damage to a gas valve is prevented with such a domestic appliance operating arrangement during assembly of the actuating knob.

According to another embodiment, an urging force upon pressing of the operation knob and the fastener on the operation shaft is smaller than a peel force upon detachment of the operation knob and the fastener from the operation shaft.

As a result, a damage-free installation of the operating knob is ensured and at the same time the operating knob is captively fastened to the operating shaft.

According to a further embodiment, the fastening device is elastically deformable.

The fastening device preferably has a U-shape. The fastening device can be made of a spring steel wire.

According to a further embodiment, the actuating knob on exactly three receiving portions, wherein the actuating knob can be fastened in exactly three different axially offset positions on the actuating shaft.

As a result, the actuating knob is particularly variable use.

According to a further embodiment, each receiving portion has a groove in which the fastening device is receivable.

The fastening device engages in particular in a form-fitting manner in the groove. As a result, a reliable recording of the fastening device is ensured in the respective receiving section.

According to a further embodiment, the receiving portions are arranged rotated by a predetermined angle to each other.

According to a further embodiment, the receiving portions are axially offset from each other.

Furthermore, a gas valve is proposed with such a domestic appliance operating arrangement.

The gas valve may be part of a domestic appliance.

Furthermore, a stove is proposed with such a domestic appliance operating arrangement and / or such a gas valve.

The stove is in particular a gas stove.

Further possible implementations of the domestic appliance operating arrangement, of the gas valve and / or of the cooker also include not explicitly mentioned combinations of features or embodiments described above or below with regard to the exemplary embodiments. The expert will also add individual aspects as improvements or additions to the respective basic form of the domestic appliance operating arrangement, the gas valve and / or the stove.

• Fig. 1 zeigt eine schematische perspektivische Ansicht einer Ausführungsform eines Herds;
• Fig. 2 zeigt eine schematische perspektivische Ansicht einer Hausgeräte-Bedienanordnung des Herds gemäß der Fig. 1;
• Fig. 3 zeigt eine schematische perspektivische Ansicht einer Befestigungseinrichtung der Hausgeräte-Bedienanordnung gemäß der Fig. 2;
• Fig. 4 zeigt eine weitere schematische perspektivische Ansicht der Hausgeräte-Bedienanordnung gemäß der Fig. 2;
• Fig. 5 zeigt eine weitere schematische perspektivische Ansicht der Hausgeräte-Bedienanordnung gemäß der Fig. 2;
• Fig. 6 zeigt eine schematische perspektivische Ansicht einer Abdeckkappe der Hausgeräte-Bedienanordnung gemäß der Fig. 2;
• Fig. 7 zeigt eine schematische Schnittansicht eines Betätigungsschafts der Hausgeräte-Bedienanordnung gemäß der Fig. 2; und
• Fig. 8 zeigt eine schematische Aufsicht auf einen Betätigungsknauf der Hausgeräte-Bedienanordnung gemäß der Fig. 2.

Further advantageous embodiments and aspects of the domestic appliance operating arrangement, the gas valve and / or the oven are the subject of the dependent claims and the embodiments of the invention described below. In the following, the domestic appliance operating arrangement, the gas valve and / or the stove will be explained in more detail on the basis of preferred embodiments with reference to the enclosed figures.

• Fig. 1 shows a schematic perspective view of an embodiment of a stove;
• Fig. 2 shows a schematic perspective view of a domestic appliance operating arrangement of the oven according to the Fig. 1 ;
• Fig. 3 shows a schematic perspective view of a fastening device of the home appliance operating arrangement according to the Fig. 2 ;
• Fig. 4 shows a further schematic perspective view of the domestic appliance operating arrangement according to the Fig. 2 ;
• Fig. 5 shows a further schematic perspective view of the domestic appliance operating arrangement according to the Fig. 2 ;
• Fig. 6 shows a schematic perspective view of a cap of the home appliance operating arrangement according to the Fig. 2 ;
• Fig. 7 shows a schematic sectional view of an operating shaft of the home appliance operating arrangement according to the Fig. 2 ; and
• Fig. 8 shows a schematic plan view of an operating knob of the home appliance operating arrangement according to the Fig. 2 ,

In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.

The Fig. 1 shows a schematic perspective view of a cooktop or a stove 1, in particular a gas hob or a gas stove. The stove 1 has a hob 2, in particular a gas hob. The hotplate 2 comprises a tub-shaped bottom plate 3, in which a plurality of gas burners 4 are at least partially accommodated. For example, the hotplate 2 has four gas burners 4. In the Fig. 1 only one of the gas burner 4 is provided with a reference numeral.

The cooking station 2 also has a gas main 5. The gas main line 5 is fluidly connected to the gas burner 4 via a gas valve 6 and a supply line 7. In particular, each gas burner 4, a gas valve 6 and a supply line 7 are assigned. The gas valve 6 is adapted to regulate a fuel gas flow from the main gas line 5 through the supply line 7 to the gas burner 4 stepless or stepped. Each gas valve 6 has an operating shaft 8.

The Fig. 2 shows a schematic perspective view of a home appliance operating arrangement 9. The home appliance operating arrangement 9 is suitable for the operation of the oven 1 or the cooking area 2 or other household appliances. The domestic appliance operating arrangement 9 comprises the operating shaft 8 of the gas valve 6 and an actuating knob 10. The actuating knob 10 is rotationally mounted on the operating shaft 8. In this case, the operating shaft 8 has a lateral flattening 11 against which an anti-rotation portion 12 of the actuating knob 10 rests. The actuating knob 10 is thus axially displaceable along the actuating shaft 8 but not rotatable relative to this. The actuating knob 10 is preferably trough-shaped, and has a circular geometry.

The household appliance operating arrangement 9 further comprises a fastening device 13. The fastening device 13 is preferably made of a spring steel wire and has a U-shaped geometry. The fastening device 13 is in a schematic perspective view in the Fig. 3 shown. The fastening device 13 is set up in an annular groove provided on the actuating shaft 8 (FIG. Fig. 4 ) 14 intervene. The fastening device 13 is elastically deformable.

As the Fig. 2 shows, the actuating knob 10 at least two receiving portions 15 to 17. The number of receiving sections 15 to 17 is arbitrary. Preferably, the actuating knob 10 has three receiving portions 15 to 17. Each receiving section 15 to 17 is adapted to receive the fastening device 13. The receiving portions 15 to 17 are positioned so that the actuating knob 10 in at least two, but in particular, in three different axially offset positions on the operating shaft 8 can be fastened.

The receiving portions 15 to 17 are arranged rotated by a predetermined angle α to each other. The angle α is preferably 20 °, more preferably 25 °, more preferably 30 °, further preferably 35 °. The Fig. 2 shows the actuating knob 10 in a first position. Here, the fastening device 13 is received in the first receiving portion 17. That is, the operation knob 10 is disposed in a highest or first position with respect to an end face 18 of the operating shaft 8.

The Fig. 4 shows the actuating knob 10 in a second position. Here, the fastening device 13 is received in the second receiving portion 16. With respect to the end face 18 of the operating shaft 8, the actuating knob 10 is arranged in a middle or second position. The receiving portions 15 to 17 are axially offset from one another. Each receiving section 15 to 17 has a groove 19 in which the fastening device 13 can be accommodated.

The Fig. 5 shows the operating knob 10 in its lowermost or third position. In this position, the fastening device 13 is received in the third receiving portion 15. The actuating knob 10 is made for example of a plastic material. In particular, the actuating knob 10 may be manufactured in a plastic injection molding process.

The operating shaft 8 has an insertion bevel 20 for pushing the fastening device 13 and the actuating knob 10 on the operating shaft 8.

The Fig. 6 shows in a schematic perspective view of a cap 21 for closing the operating knob 10. On the cap 21, a control element 22 is provided, which can engage a user for actuating the gas valve 6. The cap 21 is clipped, for example, with the actuating knob 10. The cap 21 is in particular at least partially received in the actuating knob 10. The cap 21 has a tubular base portion 23 which is at least partially in a tubular base portion 24 (FIG. Fig. 5 ) of the actuating knob 10 is receivable.

The Fig. 7 shows the operating shaft 8 in a schematic sectional view. At the annular groove 14 a deduction slope 25 for withdrawing the actuator 13 and the operating knob 10 is provided by the operating shaft 8. The insertion bevel 20 is inclined at an inclination angle γ. An inclination angle β of the deduction slope 25 and the inclination angle γ of the insertion bevel 20 are preferably such that an urging force upon pressing the operation knob 10 and the attachment device 13 on the operation shaft 8 is smaller than a withdrawal force when the operation knob 10 and the attachment device 13 are removed from the operation shaft 8 is. Furthermore, a length L of the fastening device 13 is variable ( Fig. 8 ). With the aid of the inclination angles β and γ as well as the length L, the pull-off force can be adjusted so that it is greater than 50 N. As a result, unintentional removal of the actuating knob 10 and the fastening device 13 from the actuating shaft 8 can be prevented. Furthermore, by the change of the inclination angle γ, the pressing force can be set to be smaller than 30 N. As a result, damage to the gas valve 6 when attaching the Actuator knob 10 and the fastening device 13 on the operating shaft 8 prevented.

Although the present invention has been described with reference to embodiments, it is variously modifiable.

Used reference signs:

1

stove

2

cooking

3

floor panel

4

gas burner

5

Gas main

6

gas valve

7

supply line

8th

actuating shaft

9

Home appliance operating arrangement

10

operating knob

11

flattening

12

rotational locking

13

fastening device

14

ring groove

15

receiving portion

16

receiving portion

17

receiving portion

18

face

19

groove

20

chamfer

21

cap

22

operating element

23

base section

24

base section

25

trigger slope

L

length

α

corner

β

tilt angle

γ

tilt angle

Claims (12)

1. Household appliance control assembly (9) with an actuating shank (8), an actuating knob (10) arranged on the actuating shank (8) in a non-rotating manner and a fastening facility (13), which is designed to fasten the actuating knob (10) on the actuating shank (8), wherein the actuating knob (10) has at least two receiving sections (15 - 17) for receiving the fastening facility (13), wherein the at least two receiving sections (15 - 17) are positioned such that the actuating knob (10) can be fastened to the actuating shank (8) in at least two different axially offset positions, characterised in that the actuating shank (8) has an annular groove (14), into which the fastening facility (13) engages.
2. Household appliance control assembly according to claim 1, characterised in that the actuating knob (10) can be axially displaced in order to shift the actuating knob (10) between the at least two positions along the actuating shank (8).
3. Household appliance control assembly according to claim 1 or 2, characterised in that on the annual groove (14) has a withdrawal chamfer (25) for withdrawing the fastening facility (13) from the actuating shank (8).
4. Household appliance control assembly according to one of claims 1 - 3, characterised in that the actuating shank (8) has a lead-in chamfer (20) for sliding the fastening facility (13) onto the actuating shank (8).
5. Household appliance control assembly according to one of claims 1 - 4, characterised in that a press-on force when pressing the actuating knob (10) and the fastening facility (13) onto the actuating shank (8) is less than a withdrawal force when withdrawing the actuating knob (10) and the fastening facility (13) from the actuating shank (8).
6. Household appliance control assembly according to one of claims 1 - 5, characterised in that the fastening facility (13) is resiliently deformable.
7. Household appliance control assembly according to one of claims 1 - 6, characterised in that the actuating knob (10) has precisely three receiving sections (15 - 17) and that the actuating knob (10) can be fastened to the actuating shank (8) in precisely three different axially offset positions.
8. Household appliance control assembly according to one of claims 1 - 7, characterised in that each receiving section (15 - 17) has a groove (19), in which the fastening facility (13) can be received.
9. Household appliance control assembly according to one of claims 1 - 8, characterised in that the receiving sections (15 - 17) are arranged such that they are skewed in relation to one another by a predetermined angle (α).
10. Household appliance control assembly according to one of claims 1 - 9, characterised in that the receiving sections (15 - 17) are arranged such that they are axially offset in relation to one another.
11. Gas valve (6) with a household appliance control assembly (9) according to one of claims 1 - 10.
12. Cooker (1) with a household appliance control assembly (9) according to one of claims 1 - 10 and/or a gas valve (6) according to claim 11.

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