Household appliance having a height-adjusting device for an appliance pedestal
View Patent ↗A household appliance, particularly a dishwasher or washing machine, having a height-adjusting device for an appliance pedestal. The height-adjusting device may include at least one drive gear engaged with a transmission drive converting the rotary motion of the drive gear into a lift motion of the appliance pedestal. In an exemplary embodiment of the invention, the drive gear includes a torque-limiting element operable to enable a deflecting motion of the drive gear from an operating position when a limit torque is exceeded, and which releases the engagement between the drive gear and the transmission drive.
1. A household appliance, comprising: an appliance pedestal; and a height-adjusting device for adjusting a height of the appliance pedestal, the height-adjusting device including a drive gear structured to engage with a transmission drive converting a rotational motion of the drive gear into a lift motion of the appliance pedestal, wherein the height-adjusting device includes a torque-limiting element operable to enable a deflecting motion of the drive gear from an operating position when a limit torque is exceeded and which releases the engagement between the drive gear and the transmission drive when the limit torque is exceeded, and
the torque-limiting element enables the deflecting motion at all positions of height adjustment of the height-adjusting device.
2. The household appliance as claimed in claim 1 , wherein the drive gear is structured to press against the torque-limiting element with a deflecting force which arises when torque is transmitted.
3. The household appliance as claimed in claim 1 , wherein the torque-limiting element is structured to be elastically deflected.
4. The household appliance as claimed in claim 1 , wherein the torque-limiting element is a housing section of a housing in which the drive gear is rotatably mounted.
5. The household appliance as claimed in claim 1 , wherein the torque-limiting element is structured to be brought into contact with a gear wheel outer contour of the drive gear.
6. The household appliance as claimed claim 1 , wherein the drive gear is a worm gear structured to engage with a worm wheel, and wherein an axis of rotation of the worm gear lies perpendicular to an axis of rotation of the worm wheel.
7. The household appliance as claimed in claim 1 , wherein a material of the torque-limiting element is at least one of a same material and in one piece with a mounting base of the household appliance.
8. The household appliance as claimed in claim 7 , wherein the mounting base and the torque-limiting element include plastic injection-molded parts.
9. The household appliance as claimed in claim 1 , wherein the drive gear is disposed in a rotationally fixed manner on an adjusting rod.
10. The household appliance as claimed in claim 6 , wherein the deflecting motion of the drive gear is in a transverse direction to the axis of rotation of the worm wheel.
11. The household appliance as claimed in claim 6 , further comprising a height stop that guides the drive gear so that the deflecting motion is in a direction of the torque-limiting element.
12. The household appliance as claimed in claim 11 , wherein the worm gear is extended with a bearing pin which is guided in a bearing opening.
13. The household appliance as claimed in claim 1 , wherein the torque-limiting element is a spring rib.
14. A household appliance, comprising:
an appliance pedestal; and
a height-adjusting device having
a drive gear;
a transmission drive that, in an operating position, engages the drive gear and converts a rotational motion of the drive gear into a lift motion of the appliance pedestal; and
a torque-limiting element operable to enable a deflecting motion of the drive gear from the operating position when a limit torque is exceeded, the deflecting motion releasing the engagement between the drive gear and the transmission drive when the limit torque is exceeded,
wherein the torque-limiting element enables the deflecting motion at all positions of height adjustment of the height-adjusting device.
15. The household appliance as claimed in claim 14 , wherein the drive gear is structured to press against the torque-limiting element with a deflecting force which arises when torque is transmitted.
16. The household appliance as claimed in claim 14 , wherein the torque-limiting element is structured to be elastically deflected.
17. The household appliance as claimed in claim 14 , wherein the torque-limiting element is a housing section of a housing in which the drive gear is rotatably mounted.
18. The household appliance as claimed in claim 14 , wherein the torque-limiting element is structured to be brought into contact with a gear wheel outer contour of the drive gear.
19. The household appliance as claimed claim 14 , wherein the drive gear is a worm gear structured to engage with a worm wheel, and wherein an axis of rotation of the worm gear lies perpendicular to an axis of rotation of the worm wheel.
20. The household appliance as claimed in claim 14 , wherein the drive gear is disposed in a rotationally fixed manner on an adjusting rod.
21. The household appliance as claimed in claim 19 , wherein the deflecting motion of the drive gear is in a transverse direction to the axis of rotation of the worm wheel.
22. The household appliance as claimed in claim 14 , wherein the torque-limiting element is a spring rib.