# US 9,517,748 B2 · Quick-release fastener for one end of a seat belt fastened to a vehicle in a motor vehicle

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- Number: US 9,517,748 B2
- Document ID: US9517748B2
- Status: Granted
- Kind: B2
- Application number: 14/652,597
- Filed: 2013-12-12
- Published: 2015-11-19
- Granted: 2016-12-13
- Earliest claimed: 2012-12-17
- Assignees: Autoliv Development AB
- Applicants: Autoliv Development AB
- Inventors: Arndt Söhnchen; Helge Köster; Jens Ehlers
- Web page: https://patentgrep.com/patent/US9517748B2

## CPC

- B60R 22/18: Anchoring devices
- A44B 11/2534: {with the sliding motion of the buckle providing the opening or closing action}
- A44B 11/2576: {Buckle covers}
- F16G 11/02: with parts deformable to grip the cable or cables; Fastening means which engage a sleeve or the like fixed on the cable
- B60R 22/1952: {Transmission of tensioning power by cable; Return motion locking means therefor}
- B60R 2022/1806: {for buckles}
- Y10T 24/4501: Quick connect or release [e.g., spring and detent]
- Y10T 24/4764: Ring-loop
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C)
- F16G: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A quick-release fastener for a vehicle seat belt (21) with a fitting part (1), and a fastening part (7). The fitting part (1) has a first opening (2), and a second opening (3), in which the fastening part (7) can be locked to a locking head (6). The fastening part (7) can be inserted into the opening (3) in which a spring element (14) is arranged in an assembly position (I), and the spring element (14) can be moved into the locked position (II). A housing (100) is adapted to the shape of the fitting part (1) with the locking head (6) retained therein. The mounting (112) is shaped n such that the fitting part (I) with the locking head (6) can be completely received in the mounting (112) only when the locking head (6) is in the locked position (II).

## Claims

### Claim 1

A quick-release fastener for one end of a seat belt adapted to be fastened in a vehicle, comprising:
a fitting part,
a fastening part adapted to be affixed to the vehicle,
a first opening in the fitting part in which the end of the seat belt can be fastened and a second opening in the fitting part, in which the fastening part is locked with a locking head in a locked position of the quick-release fastener, wherein
a spring element disposed in the second opening is displaceable from an assembly position to the locked position, and
a locking head of the fastening part can be introduced into the second opening in which the spring element is positioned in the assembly position, and
the spring element is configured to be displaced from the assembly position into the locked position by performing a relative movement between the locking head and the fitting part in a direction of a tensile force acting between the fastening part and the fitting part when the seat belt is under a load, the spring element securing the locking head against sliding out,
a housing with a mounting adapted to the shape of the fitting part with the locking head contained therein is provided, wherein
the mounting is so shaped that the fitting part with the locking head can only be completely accepted in the mounting if the locking head and the spring element are positioned in the locked position.

### Claim 2

A quick-release fastener for one end of a seat belt adapted to be fastened in a vehicle comprising:
a fitting part,
a fastening part adapted to be affixed to the vehicle,
a first opening is provided in the fitting part in which the end of the seat belt can be fastened and a second opening is provided in which the fastening part can be locked with a locking head, wherein
a spring element disposed in the second opening is displaceable from an assembly position to a locked position, and
a locking head of the fastening part can be introduced into the second opening in which the spring element is positioned in the assembly position, and
the spring element is configured to be moved by performing a relative movement of the locking head to the fitting part into the locked position securing the locking head against sliding out, a housing with a mounting adapted to the shape of the fitting part with the locking head contained therein is provided, wherein
the mounting is so shaped that the fitting part with the locking head can only be completely accepted in the mounting if the locking head and the spring element is positioned in the locked position, wherein
at least one protrusion is provided on the mounting of the housing which is so positioned such that, in the locked position, the protrusion engages into an opening released by the movement of the spring element or the locking head from the assembly position into the locked position.

### Claim 3 (depends on 2)

The quick-release fastener according to claim 2, wherein
the protrusion is shaped and positioned on the mounting that it forces the locking head and the spring element into the locked position during introduction into the opening.

### Claim 4 (depends on 2)

The quick-release fastener according to claim 2, wherein
the protrusion is so shaped and positioned, that the protrusion secures the spring element and the locking head in the position engaging in the opening against a sliding out of the locked position.

### Claim 5 (depends on 1)

The quick-release fastener according to claim 1, wherein
the housing is constructed in two parts with two housing halves connected by a hinge
a first mounting half is provided in a first housing half and
a second mounting half is provided in a second housing half, and the first and second mounting half form a complete mounting by joining the housing halves.

### Claim 6 (depends on 5)

The quick-release fastener according to claim 5, wherein
the first or the second mounting halves is formed by a shell with a shape adapted to the fitting part with the inserted locking head, in which shell the fitting part with the inserted locking head can be accepted in only one exclusively predetermined orientation.

### Claim 7 (depends on 5)

The quick-release fastener according to claim 5, wherein
a protrusion (104) is positioned on one of the other mounting.

### Claim 8 (depends on 1)

The quick-release fastener according to claim 1, wherein
the housing features a third opening through which the fitting part with the first opening protrudes outward.

### Claim 9

A quick-release fastener for one end of a seat belt adapted to be fastened in a vehicle comprising:
a fitting part,
a fastening part adapted to be affixed to the vehicle,
a first opening is provided in the fitting part in which the end of the seat belt can be fastened and a second opening is provided in which the fastening part can be locked with a locking head, wherein
a spring element disposed in the second opening is displaceable from an assembly position to a locked position, and
a locking head of the fastening part can be introduced into the second opening in which the spring element is positioned in the assembly position, and
the spring element is configured to be moved by performing a relative movement of the locking head to the fitting part into the locked position securing the locking head against sliding out, a housing with a mounting adapted to the shape of the fitting part with the locking head contained therein is provided, wherein
the mounting is so shaped that the fitting part with the locking head can only be completely accepted in the mounting if the locking head and the spring element is positioned in the locked position,
further comprising a seat belt protector on the housing, projecting into the first opening enlarging the deflection radius of the belt guided through the opening.