# US 5,704,784 A · Quick-release mechanism for orthodontic headgear assembly

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- Number: US 5,704,784 A
- Document ID: US5704784A
- Status: Granted
- Kind: A
- Application number: 08/553,076
- Filed: 1995-11-03
- Granted: 1998-01-06
- Earliest claimed: 1995-11-03
- Inventors: Roger S. Wolk
- Web page: https://patentgrep.com/patent/US5704784A

## CPC

- A61C 7/06: Extra-oral force transmitting means, i.e. means worn externally of the mouth and placing a member in the mouth under tension
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)

## Abstract

A quick-release mechanism for an orthodontic headgear assembly, which has a bracket integrally formed with a traction force device and a connecting structure attached to ends of a neckstrap or headstrap. The bracket has two opposite horizontal parallel arms that extend rearwardly and a vertical rod integrally attached between the two opposite parallel arms. The connecting structure is snapped onto the vertical rod for retaining the traction force device and the neckstrap in position. The quick-release mechanism is disconnected by vertically pulling the connecting structure and the bracket apart from each other at a predetermined force, thereby releasing the connecting structure from the bracket.

## Claims

### Claim 1

A quick-release mechanism for an orthodontic headgear assembly including a facebow, a harness for mounting on the head and/or neck of a patient and a traction force device attached to the facebow for applying a traction force, where the quick-release mechanism is operatively interposed between the traction force device and an adjacent end of the harness, the quick-release mechanism comprising:
a. a connecting member having a plate and a multiplicity of spaced apart gripping hooks integrally formed with and extending away from the plate, the plate for attachment to the adjacent end of the harness, the multiplicity of spaced apart gripping hooks all being alternatively offset from each other; and
b. a bracket member for adapting to the traction force device and having two spaced apart horizontal parallel arms and a vertical rod integrally attached between the two parallel arms such that said multiplicity of spaced apart gripping hooks of said connecting member are engageably snapped onto the vertical rod, and can be released from the vertical rod by pulling the bracket member and said connecting member apart from each other at a predetermined force;
c. whereby said quick-release mechanism is used for facilitating the release of the harness from the traction force device, and thereby facilitates the removal of the orthodontic headgear assembly.

### Claim 2 (depends on 1)

The quick-release mechanism in accordance with claim 1 wherein said quick-release mechanism is made of plastic.

### Claim 3

A quick-release mechanism for operative interposition between an end of a traction force device which applies tension for an orthodontic treatment and an adjacent end of a harness for mounting on the head and/or neck of a patient, the release mechanism comprising:
a. a first member having a plate and at least two hooks integrally formed with and extending away from the plate, the plate for attachment to the adjacent end of the harness; and
b. a second member for adapting to the traction force device and having two parallel arms and a rod integrally attached between the two parallel arms such that said at least two hooks of said first member are engageably attached to the rod, and can be released from the rod by pulling said first member and the second member apart from each other at a predetermined force;
c. whereby said release mechanism is used for facilitating the release of the harness from the traction force device for applying tension.

### Claim 4 (depends on 3)

The quick-release mechanism in accordance with claim 3 wherein said quick-release mechanism is made of plastic.

### Claim 5 (depends on 3)

The quick-release mechanism in accordance with claim 3 wherein said at least two hooks all being alternatively offset from each other.