Operating attachment

Patent metadata

Field	Value
Publication number	US-11309156-B2
Application number	US-201816649668-A
Country	US
Kind code	B2
Filing date	Sep 25, 2018
Priority date	Sep 26, 2017
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

An operating attachment for arrangement on a predefinable switching device and for operating a pivotable switching device toggle of the switching device includes: a one-sided open housing positionable on the switching device; a rotatable shaft having a rotation axis; a manual operating part, the manual operating part being situated on the rotatable shaft; a switch-on projection for pivoting the switching device toggle in a first pivot direction, the switch-on projection being situated on the rotatable shaft; a switch-off projection for pivoting the switching device toggle in a second pivot direction opposite the first pivot direction, the switch-off projection being situated on the rotatable shaft; and a housing stop for contacting a stop edge of the switch-off projection, the housing stop being situated in the one-sided open housing. The switch-off projection yields resiliently such that the switch-off projection is bent for contact with the housing stop.

First claim

The invention claimed is:

1. An operating attachment for arrangement on a predefinable switching device and for operating a pivotable switching device toggle of the predefinable switching device, the operating attachment comprising:
a one-sided open housing positionable on the predefinable switching device;
a rotatable shaft having a rotation axis;
a manual operating part, the manual operating part being situated on the rotatable shaft;
a switch-on projection configured to pivot the pivotable switching device toggle in a first pivot direction, the switch-on projection being situated on the rotatable shaft;
a switch-off projection configured to pivot the pivotable switching device toggle in a second pivot direction opposite the first pivot direction, the switch-off projection being situated on the rotatable shaft; and
a housing stop configured to contact a stop edge of the switch-off projection, the housing stop being situated in the one-sided open housing,
wherein the switch-off projection is configured to yield resiliently such that the switch-off projection is bent for contact with the housing stop on the one-sided open housing when loaded with a predefinable first force which acts in a direction of the manual operating part and parallel to the rotation axis of the rotatable shaft.

2. The operating attachment according to claim 1 , wherein the switch-off projection is connected with the rotatable shaft by a connecting region, and
wherein the connecting region is configured accordingly in a resiliently yielding manner.

3. The operating attachment according to claim 1 , wherein the switch-off projection comprises a plastic.

4. The operating attachment according to claim 1 , wherein the predefinable bending of the switch-off projection is reversible.

5. The operating attachment according to claim 1 , wherein the switch-off projection comprises a switching device toggle operating range, and the switching device toggle operating range is formed transversely so as to generate the first force when the pivotable switching device toggle is operated.

6. The operating attachment according to claim 1 , wherein the switch-off projection and the switch-on projection are integrally formed.

7. The operating attachment according to claim 1 , wherein the manual operating part comprises a rotary knob.

8. A system, comprising:
the predefinable switching device according to claim 1 comprising a protective switch or a load-break switch; and
the operating attachment according to claim 1 .

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Spritzendorfer Bernd
• Zimmel Raffael

Classifications

• H01H2071/565

  using a add on unit, e.g. a separate rotary actuator unit, mounted on lever actuated circuit breakers · CPC title

• H01H71/501 Primary

  Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker · CPC title

• H01H71/56 Primary

  actuated by rotatable knob or wheel · CPC title

• H01H3/42

  using cam or eccentric · CPC title