Sliding-pivoting mechanism of a shelf of a piece of furniture or of a household appliance, and piece of furniture or a household appliance

Patent metadata

Field	Value
Publication number	US-11445823-B2
Application number	US-201917055363-A
Country	US
Kind code	B2
Filing date	May 6, 2019
Priority date	May 15, 2018
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A sliding-pivoting mechanism of a shelf of a piece of furniture or of a household appliance for extracting and raising the shelf out of a body of the piece of furniture or of the household appliance is provided. The mechanism includes at least two pivot arms of a pivoting mechanism, which are rotatably fixed by a first end to at least one of the side walls of the body, parallel to the plane of the side walls, and which are arranged parallel to and at a distance from each other. At respective second ends of the pivot arms, a guide rail of a sliding mechanism is pivotably fixed parallel to the plane of the side walls such that the guide rail is pivotable from a lower position within the body into a raised, upper position at least partially outside the body, at least one running rail that is linearly displaceable in the guide rail and to which the shelf is fixed. The sliding-pivoting mechanism includes a lever unit supporting raising and lowering of the pivoting mechanism and is pivotably fixed to the running rail parallel to the plane of the side walls. A coupling element of a first coupling unit is arranged on the lever unit such that the coupling element is couplable to at least one of the pivot arms with a corresponding element of the first coupling unit, which corresponds to the coupling element, by displacing the running rail into a predetermined pivoting position.

First claim

The invention claimed is:

1. A sliding-pivoting mechanism of a shelf of a piece of furniture or household appliance for pulling out and raising the shelf out of a body of the piece of furniture or household appliance having side walls, sliding-pivoting mechanism comprising:
at least two pivot arms of a pivot mechanism rotatably fixed on at least one of the side walls of the body with a first end parallel to a plane of the side walls and arranged in parallel spaced apart from one another;
a guide rail of a sliding mechanism pivotably fixed in parallel to the plane of the side walls at respective second ends of the pivot arms in such a way that the guide rail is pivotable out of a lower position inside the body into a raised upper position at least partially outside the body;
at least one slide rail, which is linearly displaceable in the guide rail and on which the shelf is fastened;
a lever unit, which assists raising and lowering of the pivot mechanism and is pivotably fixed on the at least one slide rail in parallel to the plane of the side walls; and
at least one coupling element of a first coupling unit arranged on the lever unit in such a way that the at least one coupling element can be coupled with a correspondence element, corresponding to the at least one coupling element, of the at least one first coupling unit on a first one of the at least two pivot arms by displacing the at least one slide rail into a predetermined pivot position,
wherein the at least one coupling element of the first coupling unit is a slotted guide, in which a correspondence element can be guided for the sequence control of a pivot movement of the lever unit, wherein the correspondence element is arranged on a second one of the at least two pivot arms and is a roller.

2. The sliding-pivoting mechanism of claim 1 , further comprising:
at least one coupling element of a second coupling unit arranged on the at least one slide rail or the shelf in such a way that the at least one coupling element can be coupled with a correspondence element, corresponding to the at least one coupling element, of the at least one second coupling unit of at least one of the at least two pivot arms by displacing the at least one slide rail into a predetermined pivot position.

3. The sliding-pivoting mechanism of claim 2 , further comprising:
a joint chain pivotably fastened on an end of the at least one lever arm close to a lever arm mount of the at least one lever arm, wherein the correspondence element of the first coupling unit is rotatably fastened on an end of the joint chain remote from the lever arm,
wherein the at least one coupling element of the second coupling unit is a sliding or rolling element rotatably arranged on the at least one of the at least two pivot arms, which can be guided in a correspondence element formed on the lever arm mount of the at least one lever arm and is a slotted guide for sequence control of a pivot movement of the pivot mechanism.

4. The sliding-pivoting mechanism of claim 1 , wherein the lever unit has at least one lever arm, which is pivotably fixed with a first end on the at least one slide rail in parallel to the plane of the side walls and on which the at least one coupling element or the correspondence element of the first coupling unit is fastened.

5. The sliding-pivoting mechanism of claim 4 , further comprising:
a joint chain pivotably fastened on an end of the at least one lever arm close to a lever arm mount of the at least one lever arm, wherein the correspondence element of the first coupling unit is rotatably fastened on an end of the joint chain remote from the lever arm.

6. The sliding-pivoting mechanism of claim 5 , wherein the joint chain has at least two chain links coupled to one another in a rotationally articulated manner.

7. The sliding-pivoting mechanism of claim 1 , wherein at least a portion of the slotted guide of the first coupling unit has an inlet region.

8. The sliding-pivoting mechanism of claim 1 , wherein at least a portion of the slotted guide of the first coupling unit has a shape of a partial circle.

9. The sliding-pivoting mechanism of claim 1 , wherein at least a portion of the slotted guide of the first coupling unit has a curve with a varying curve radius.

10. The sliding-pivoting mechanism of claim 1 , wherein a portion of the slotted guide of the first coupling unit has a dead center section.

11. The sliding-pivoting mechanism of claim 1 , wherein at least a portion of the slotted guide of the first coupling unit has a slope adapted to an optimum actuating force curve.

12. The sliding-pivoting mechanism of claim 1 , further comprising:
a safeguard against raising the lever unit before the shelf is completely extended and/or a safeguard against pivoting the lever unit too far during the raising and/or lowering is provided.

13. A piece of furniture, comprising:
a body having side walls;
a shelf fixed in the furniture body by means of a sliding-pivoting mechanism, using which the shelf can be pulled out of the furniture body and raised, wherein the sliding-pivoting mechanism comprises
at least two pivot arms of a pivot mechanism rotatably fixed on at least one of the side walls of the body with a first end parallel to a plane of the side walls and arranged in parallel spaced apart from one another;
a guide rail of a sliding mechanism pivotably fixed in parallel to the plane of the side walls at respective second ends of the pivot arms in such a way that the guide rail is pivotable out of a lower position inside the body into a raised upper position at least partially outside the body;
at least one slide rail, which is linearly displaceable in the guide rail and on which the shelf is fastened;
a lever unit, which assists raising and lowering of the pivot mechanism and is pivotably fixed on the at least one slide rail in parallel to the plane of the side walls; and
at least one coupling element of a first coupling unit arranged on the lever unit in such a way that the at least one coupling element can be coupled with a correspondence element, corresponding to the at least one coupling element, of the at least one first coupling unit on at least one of the at least two pivot arms by displacing the at least one slide rail into a predetermined pivot position,
wherein the at least one coupling element of the first coupling unit is a slotted guide, in which a correspondence element can be guided for the sequence control of a pivot movement of the lever unit, wherein the correspondence element is arranged on the at least one of the at least two pivot arms and is a roller.

14. A dishwasher, cooking appliance, or refrigerator, comprising:
a body having side walls and defining an inner side of a usable space of the dishwasher, cooking appliance, or refrigerator;
a shelf fixed on the inner side of the usable space; and
a sliding-pivoting mechanism configured to pull out and raise the shelf from the inner side of the useable space, wherein the sliding-pivoting mechanism comprises
at least two pivot arms of a pivot mechanism rotatably fixed on at least one of the side walls of the body with a first end parallel to a plane of the side walls and arranged in parallel spaced apart from one another;
a guide rail of a sliding mechanism pivotably fixed in parallel to the plane of the side walls at respective second ends of the pivot arms in such a way that the guide rail is pivotable out of a lower position inside the body into a raised upper position at least partially outside the body;
at least one slide rail, which is linearly displaceable in the guide rail and on which the shelf is fastened;
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Assignees

• Hettich Paul Gmbh & Co Kg

Inventors

• Bextermöller Benjamin
• Krüger David
• Gurr Arnold

Classifications

• F24C15/16

  Shelves, racks or trays inside ovens; Supports therefor · CPC title

• A47L15/507

  Arrangements for extracting racks, e.g. roller supports · CPC title

• A47B2210/17

  Drawers used in connection with household appliances · CPC title

• A47B2210/04

  Metal wire drawers · CPC title

• A47B46/005 Primary

  by displacement in a vertical plane; by rotating about a horizontal axis · CPC title