Knob element and slide element of an adjusting apparatus and adjusting apparatus and method for adjusting a position of a thermal tripping shaft

Patent metadata

Field	Value
Publication number	US-9378915-B2
Application number	US-201414564150-A
Country	US
Kind code	B2
Filing date	Dec 9, 2014
Priority date	Feb 28, 2014
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

Embodiments of the present invention relate to a knob element and a slide element of an adjusting apparatus, to an adjusting apparatus, and to a method for adjusting a position of a thermal tripping shaft as well as to a thermal magnetic trip unit and an electrical switch for interrupting a current flow of an electric current in an electrical circuit in the event of the occurrence of a tripping event, having the adjusting apparatus, which has a rotatably mounted knob element and a tangentially movably mounted slide element. In at least one embodiment, the knob element and the slide element are operatively connected in such a way that the rotary movement of the knob element becomes a tangential movement of the slide element.

First claim

What is claimed is:

1. A knob element of an adjusting apparatus for adjusting a position of a thermal tripping shaft of a thermal tripping apparatus of an electrical switch for calibrating a tripping characteristic of the thermal tripping apparatus, the knob element comprising:
a guide groove, extending, at least sectionally, in the form of a spiral along a first surface, to guide a guide pin of a slide element of the adjusting apparatus to transfer a movement onto the thermal tripping shaft ( 40 ).

2. The knob element of claim 1 , wherein the guide groove includes a substantially constantly increasing spacing starting from a knob element rotation axis of the knob element.

3. The knob element of claim 1 , wherein the knob element includes a compensating groove, which at least sectionally surrounds the guide groove for producing a guide groove wall.

4. An adjusting apparatus for adjusting a position of a thermal tripping shaft of a thermal tripping apparatus of an electrical switch, comprising:
the rotatably mounted knob element of claim 1 ; and
a tangentially movably mounted slide element, wherein the knob element and the slide element are operatively connected in such a way that the rotary movement of the knob element becomes a tangential movement of the slide element.

5. The adjusting apparatus of claim 4 , wherein the slide element is arranged between the knob element and the thermal tripping shaft.

6. A slide element of an adjusting apparatus for converting a rotational movement of a knob element of the adjusting apparatus about a knob element rotation axis into a translational movement of a thermal tripping shaft in the direction of a shaft rod longitudinal axis of the thermal tripping shaft, the slide element comprising:
at least one guide pin, arranged on a first surface of the slide element, to engage in a guide groove in the knob element; and
a transfer element, arranged on a second surface opposite the first surface of the slide element, to transfer the movement to the thermal tripping shaft.

7. The slide element of claim 6 , wherein at least one of
the transfer element is arranged in a region of a slide element center point, and
the guide pin is arranged in a region spaced apart from the slide element center point.

8. The slide element of claim 7 , wherein the slide element includes at least one sliding region, by which the slide element is guidable in sliding fashion in a guide region of an adjusting apparatus.

9. The slide element of claim 8 , wherein the sliding region of the slide element is mounted at least sectionally flexibly.

10. The slide element of claim 6 , wherein the slide element includes at least one sliding region, by which the slide element is guidable in sliding fashion in a guide region of an adjusting apparatus.

11. The slide element of claim 10 , wherein the sliding region of the slide element is mounted at least sectionally flexibly.

12. An adjusting apparatus for adjusting a position of a thermal tripping shaft of a thermal tripping apparatus of an electrical switch, comprising:
a rotatably mounted knob element; and
a tangentially movably mounted slide element, the slide element being the slide element of claim 6 , wherein the knob element and the slide element are operatively connected in such a way that the rotary movement of the knob element becomes a tangential movement of the slide element.

13. The adjusting apparatus of claim 12 , wherein the slide element is arranged between the knob element and the thermal tripping shaft.

Assignees

• Siemens Ag

Inventors

• Augusta Zbynek
• Himmelein Frank
• Musil Filip

Classifications

• H01H71/7427 Primary

  Adjusting only the electrothermal mechanism · CPC title

• H01H71/16

  with bimetal element {(combined with detection of imbalance of two or more currents H01H83/223)} · CPC title

• H01H89/00

  Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass · CPC title

• Y10T292/57

  Operators with knobs or handles · CPC title

• H01H51/00

  Electromagnetic relays (relays using the dynamo-electric effect H01H53/00) · CPC title