# US 9,039,339 B2 · Spring nut

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- Number: US 9,039,339 B2
- Document ID: US9039339B2
- Status: Granted
- Kind: B2
- Application number: 13/721,682
- Filed: 2012-12-20
- Published: 2013-07-04
- Granted: 2015-05-26
- Earliest claimed: 2011-12-29
- Assignees: TRW Automotive Electronics & Components GmbH & Co. KG
- Applicants: TRW Automotive Electronics & Components GmbH
- Inventors: Michell Kuhm; Jerome Maurer; Jeremy Jacotey
- Web page: https://patentgrep.com/patent/US9039339B2

## CPC

- F16B 37/08: Quickly-detachable {or mountable} nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
- F16B 37/0842: {fastened to the threaded bolt with snap-on-action, e.g. push-on nuts for stud bolts (F16B37/0857 takes precedence; snap-on-action of a pin, spigot, shaft or the like and a member surrounding it F16B21/06)}
- F16B 37/0857: {with the threaded portions of the nut engaging the thread of the bolt by the action of one or more springs or resilient retaining members (F16B37/0821 and F16B37/0835 take precedence)}
- F16B 37/14: Cap nuts; Nut caps or bolt caps
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)

## Abstract

In a spring nut (10) for attachment onto a stud (12), having a substantially oblong seat for the stud (12), the seat having an axial insertion opening (32) for the stud (12) and a holding section for the stud (12), provision is made that the spring nut (10) completely encloses the seat on a front wall (28) opposite the insertion opening (32) and in the peripheral direction.

## Claims

### Claim 1

A spring nut for attachment onto a stud comprising:
a holding section for retaining the stud,
a base with an axial insertion opening through which the stud can extend,
an inner wall including at least two radially resilient shackles which extend in an axial direction of the spring nut and are uniformly distributed in a peripheral direction of the spring nut, the inner wall extending in the axial direction of the spring nut, the inner wall being enclosed on a front face opposite the axial insertion opening,
a web provided on the front face, the resilient shackles having an end resiliently mounted at the web and a free end facing the insertion opening, and
an outer wall extending in the axial direction of the spring nut that encloses the inner wall in the peripheral direction of the spring nut.

### Claim 2 (depends on 1)

The spring nut according to claim 1, wherein the holding section includes locking members which are resilient in a radial direction.

### Claim 3 (depends on 2)

The spring nut according to claim 2, wherein the locking members are arranged opposite each other in pairs in the axial direction.

### Claim 4 (depends on 2)

The spring nut according to claim 2, wherein the locking members are offset in the longitudinal direction and constitute an internal thread.

### Claim 5 (depends on 1)

The spring nut according to claim 1, wherein the outer wall is spaced apart from the inner wall in a radial direction.

### Claim 6 (depends on 1)

The spring nut according to claim 1, wherein the outer wall and the inner wall share a common longitudinal axis.

### Claim 7 (depends on 1)

The spring nut according to claim 1, wherein the holding section does not overlap the web and the inner wall in the axial direction of the spring nut.