# US 11,078,953 B2 · Swivel connector

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,078,953 B2
- Document ID: US11078953B2
- Status: Granted
- Kind: B2
- Application number: 16/257,211
- Filed: 2019-01-25
- Published: 2020-05-07
- Granted: 2021-08-03
- Earliest claimed: 2018-11-06
- Assignees: Duraflex Hong Kong Limited
- Applicants: Duraflex Hong Kong Limited
- Inventors: Yick Fai Chan
- Web page: https://patentgrep.com/patent/US11078953B2

## CPC

- A44B 11/25: with two or more separable parts
- F16C 11/10: Arrangements for locking
- F16G 11/10: Quick-acting fastenings; Clamps holding in one direction only
- A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C)
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16G: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR

## Abstract

A swivel connector has a female part and a male part that are connected to each other so as to swivel. The female part has a main body with an interior cavity and an open face, and a strap connector. The male part has a plug portion and a strap connector. A ring lock locks the male portion to the female portion and is formed by two side walls connected by two pivot bars, the side walls of the ring lock being rotatably connected to the female part. The male part is locked to the female part by inserting the plug portion into the interior cavity, and the ring lock is held by spring in a locked position where the open face is blocked by one of the pivot bars. The male part is released from the female part by rotating the ring lock against the force of the spring until the open face is not blocked by the pivot bar.

## Claims

### Claim 1

A swivel connector comprising:
a female part comprising:
a main body having an end wall, two side pieces, an interior cavity and an open face,
a strap connector connected to the main body, and
a spring connected to the main body,
a male part comprising:
a plug portion, and
a strap connector connected to the plug portion, and
a ring lock comprising two side walls connected by two pivot bars located on opposite sides from each other, the side walls of the ring lock being rotatably connected to the side pieces of the main body of the female part and abutting the spring, so that the ring lock can be rotated around the female part from a locked position to an unlocked position by raising and lowering the pivot bars,
wherein the male part is locked to the female part by inserting the plug portion into the interior cavity,
wherein the spring exerts a force on the ring lock to maintain the ring lock in a locked position where the open face is blocked by one of the pivot bars to prevent the male part from releasing from the female part, and
wherein the male part is released from the female part by rotating the ring lock against the force of the spring until the open face is not blocked by the pivot bar, and sliding the male part out of the interior cavity via the open face.

### Claim 2 (depends on 1)

The swivel connector according to claim 1, wherein the interior cavity has a shape corresponding to a shape of the plug portion.

### Claim 3 (depends on 2)

The swivel connector according to claim 2, wherein the interior cavity has an upper chamber, a lower chamber and a flange between the upper and lower chambers on at least one of the end wall or side pieces, and wherein the plug portion comprises an end cap corresponding to the shape of the upper chamber, and a flange extending outward from the plug below the end cap and corresponding to a shape of the lower chamber, with a groove formed between the flange of the plug portion and the end cap, wherein the flange in the interior cavity engages the groove in the plug portion to secure the male part to the female part.

### Claim 4 (depends on 1)

The swivel connector according to claim 1, wherein the plug portion and interior cavity have a round cross-section, and wherein when the male part is locked to the female part, the male part and female parts can rotate with respect to each other about a rotation axis extending through a center of the plug portion and interior cavity.

### Claim 5 (depends on 1)

The swivel connector according to claim 1, wherein the pivot bar facing the open face has a protrusion extending into the interior cavity, the protrusion abutting the plug portion when the ring lock is in the locked position.

### Claim 6 (depends on 1)

The swivel connector according to claim 1, wherein the female part has a stop located on an exterior of the end wall, the stop abutting the ring lock when the ring lock is in a locked position and preventing rotation of the ring lock beyond the locked position.

### Claim 7 (depends on 1)

The swivel connector according to claim 1, wherein the ring lock has positioning flanges on each of the pivot bars, the positioning flanges extending outward from each pivot bar to assist a finger in rotating the pivot bars.