Electrical device having an ejector lever with displaceable pivot axis

Patent metadata

Field	Value
Publication number	US-10644448-B2
Application number	US-201816053381-A
Country	US
Kind code	B2
Filing date	Aug 2, 2018
Priority date	Aug 2, 2017
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

An electrical device, having a receiving shaft for releasably receiving an electrical and/or electronic component, in particular a relay module or an electrical circuit, wherein the electrical device has an ejection device for ejecting the component, wherein the ejection device has a pivotable ejector lever. In an ejection operation, the component can be at least partially pushed from the receiving shaft by manually operating the ejector lever by a pressure force exerted on the component by the ejector lever, wherein the ejector lever is pivotably supported on the electric device without a fixed pivot axis and in an ejection operation, is configured to execute a pivoting movement of which the pivot axis is displaceable during the course of the ejection operation.

First claim

What is claimed is:

1. An electrical device comprising:
a receiving shaft for releasably receiving electrical and/or electronic equipment or a relay module for an electrical circuit;
an ejection device adapted to perform an ejection operation of the component, the ejection device including a pivotable ejector lever;
wherein by manually actuating the ejector lever, the component is at least partially pressed out of the receiving shaft in the ejection operation by a pressure force exerted by the ejector lever on the component, such that the ejector lever directly contacts and pushes the component,
wherein the ejector lever is pivotally mounted on the electrical device without a fixed pivot axis and is adapted to execute a pivoting movement in the ejection operation in which a displaceable pivot axis is displaced during a course of the ejection operation,
wherein the electrical device has a roll-off contour, which is stationary with respect to the receiving shaft, for supporting the ejector lever on which the ejector lever is rolled during the ejection operation so that the displaceable pivot axis is displaced, and
wherein a surface of the elector lever forms a bearing contour via which the ejector lever is supported on the roll-off contour, wherein the displaceable pivot axis is formed by a bearing point of the bearing contour of the ejector lever on the roll-off contour, wherein, in the ejection operation, a lever ratio of a force arm and a load arm of the ejector lever is changed by a displacement of the pivot axis such that the lever ratio is reduced from a beginning to an end of the ejection operation, and wherein the load arm is a portion of the ejector lever that extends from the bearing point to a first free end of the ejector lever that is positioned below the component and directly contacts the component and the force arm is a portion of the ejector lever that extends from the bearing point to a second free end of the ejector, the second free end opposing the first free end.

2. The electrical device according to claim 1 , wherein the ejector lever is formed as part of the electrical device.

3. The electrical device according to claim 1 , wherein, via the ejector lever, an actuating force acting on the ejector lever due to a manual actuation of the ejector lever is deflected towards the pressure force applied to the component, and wherein an effective direction of the actuating force is directed counter to an effective direction of the pressure force applied to the component.

4. The electrical device according to claim 1 , wherein the ejector lever has a manual actuating element via which the ejector lever is to be actuated directly manually for pressing the component from the receiving shaft.

5. The electrical device according to claim 1 , wherein a surface the bearing contour of the ejector lever is a linearly extending bearing contour via which the ejector lever is supported on the roll-off contour.

6. The electrical device according to claim 1 , wherein the bearing contour of the ejector lever is a convex bearing contour via which the ejector lever is supported on the roll-off contour.

7. The electrical device according to claim 1 , wherein the electrical device has an insulating material housing, and wherein the roll-off contour is formed on the insulating material housing.

8. The electrical device according to claim 1 , wherein the lever ratio is changed from the beginning to the end of the ejection operation by at least 10%.

9. The electrical device according to claim 1 , wherein ejector lever is a single, monolithic element, and wherein a position of the bearing point moves along the bearing contour of the ejector lever during the ejection operation.

10. An electrical device comprising:
a receiving shaft for releasably receiving electrical and/or electronic equipment or a relay module for an electrical circuit;
an ejection device adapted to perform an ejection operation of the component, the ejection device including a pivotable ejector lever;
wherein by manually actuating the elector lever, the component is at least partially pressed out of the receiving shaft in the ejection operation by a pressure force exerted by the ejector lever on the component, such that the ejector lever directly contacts and pushes the component,
wherein the ejector lever is pivotally mounted on the electrical device without a fixed pivot axis and is adapted to execute a pivoting movement in the ejection operation in which a displaceable pivot axis is displaced during a course of the election operation,
wherein the electrical device has a roll-off contour, which is stationary with respect to the receiving shaft, for supporting the ejector lever on which the ejector lever is rolled during the ejection operation so that the displaceable pivot axis is displaced
wherein a surface of the ejector lever forms a linearly extending bearing contour via which the ejector lever is supported on the roll-off contour, and
wherein the displaceable pivot axis is formed by a bearing point of the linearly extending bearing contour of the ejector lever on the roll-off contour.

11. The electrical device according to claim 1 , wherein the ejector lever is a single, monolithic element.

12. The electrical device according to claim 1 , wherein the ejector lever executes the pivoting movement in the ejection operation without use of a bearing pin.

13. An electrical device comprising:
a receiving shaft for releasably receiving electrical and/or electronic equipment or a relay module for an electrical circuit;
an ejection device adapted to perform an ejection operation of the component, the ejection device including a pivotable ejector lever;
wherein by manually actuating the ejector lever, the component is at least partially pressed out of the receiving shaft in the ejection operation by a pressure force exerted by the ejector lever on the component, such that the ejector lever directly contacts and pushes the component,
wherein the ejector lever is pivotally mounted on the electrical device without a fixed pivot axis and is adapted to execute a pivoting movement in the ejection operation in which a displaceable pivot axis is displaced during a course of the ejection operation,
wherein the electrical device has a roll-off contour, which is stationary with respect to the receiving shaft, for supporting the ejector lever on which the ejector lever is rolled during the ejection operation so that the displaceable pivot axis is displaced, and
wherein a surface of the ejector lever forms a combination of a linearly extending bearing contour and a convex bearing contour via which the ejector lever is supported on the roll-off contour.

Assignees

• Wago Verwaltungs Gmbh

Inventors

• Mickmann Viktor

Classifications

• H01H50/048 Primary

  Plug-in mounting or sockets · CPC title

• H01R13/635 Primary

  by mechanical pressure, e.g. spring force · CPC title

• H01R13/633

  for disengagement only {(in combination with safety switch H01R13/7132)} · CPC title

• H01R13/6335 Primary

  comprising a handle · CPC title