# US 7,607,956 B2 · Spring force clamp

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- Number: US 7,607,956 B2
- Document ID: US7607956B2
- Status: Granted
- Kind: B2
- Application number: 11/867,747
- Filed: 2007-10-05
- Published: 2008-04-10
- Granted: 2009-10-27
- Earliest claimed: 2006-10-05
- Assignees: Wieland Electric GmbH
- Inventors: Oliver Lang; Peter Ginschel; Thomas Brotkorb; Christian Süss
- Web page: https://patentgrep.com/patent/US7607956B2

## CPC

- H01R 4/483: {Pivoting arrangements, e.g. lever pushing on the spring}
- H01R 4/4835: {Mechanically bistable arrangements, e.g. locked by the housing when the spring is biased}
- H01R 4/4816: {the spring shape preventing insertion of the conductor end when the spring is unbiased}
- H01R 4/4833: {Sliding arrangements, e.g. sliding button}
- H01R 4/4842: {the spring housing being provided with a single opening for insertion of a spring-activating tool}
- Y10T 24/34: Combined diverse multipart fasteners
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A spring-force terminal point for an electrical conductor (8) with a clamping spring (1) and with a busbar (2) such that, in a clamping position, the conductor (8) bears against the busbar (2) under the pressure of the clamping spring (1), a tension lever (11) holding, with a latching cam (12), the clamping spring (1) in an opening position, and the tension lever (11) being capable of being triggered by means of a rotary movement so as to move the clamping spring (1) out of its opening position into its clamping position.

## Claims

### Claim 1

A spring-force clamp for an electrical conductor to be inserted into a conductor housing, comprising:
a clamping spring and a busbar, said busbar being arranged such that, in a clamping position, said clamping spring exerts pressure on the electrical conductor for bearing against said busbar;
a tension lever including a latching cam for holding said clamping spring in an open position, said tension lever being capable of rotary movement for releasing a tension of said clamping spring from holding, so as said clamping spring being moved from an open position into the clamping position for clamping the conductor;
wherein said tension lever is substantially U-shaped and includes a tensioning limb and a resetting limb.

### Claim 2 (depends on 1)

The spring-force clamp of claim 1, wherein said tension lever has a resetting spring.

### Claim 3 (depends on 1)

The spring-force clamp of claim 1, wherein said resetting limb includes a tab which forms said resetting spring.

### Claim 4 (depends on 1)

The spring-force clamp of claim 1 wherein said tensioning limb has a latching cam.

### Claim 5 (depends on 4)

The spring-force clamp of claim 4, wherein said tensioning limb and said resetting limb respond to a pressure against said resetting spring to move synchronously in rotary movement such that said latching cam releases said clamping spring from the clamping position.

### Claim 6 (depends on 5)

The spring-force clamp of claim 5, wherein the conductor is arranged to press said resetting limb against said resetting spring to release said clamping spring from the clamping position.

### Claim 7 (depends on 5)

The spring-force clamp of claim 5, including a pushbutton handle associated with said tensioning limb to cause said resetting spring to release said clamping spring from the clamping position.