Quick coupling for self-contained breathing apparatus harness and backplate

Patent metadata

Field	Value
Publication number	US-10850138-B2
Application number	US-201515776499-A
Country	US
Kind code	B2
Filing date	Nov 19, 2015
Priority date	Nov 19, 2015
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

Embodiments relate generally to connectors for use with harness and backplate systems in an SCBA. An SCBA may comprise a backplate for holding a cylinder of air and a harness with straps operable to attach to the backplate. Applicants have developed a backplate connector that provides a reliable quick connection and disconnection for straps attached to a backplate. The connector may fit into a slot on the backplate. In some embodiments, a plurality of connectors may be used to connect a plurality of straps to the backplate. Additionally, the connector may comprise a clip or other attachment operable to secure one or more hoses of the SCBA. This design may prevent the air hoses being hooked accidently, and the attachment of the hoses may help to secure the connector into the slot of the backplate, reducing the change of the connector disconnecting during normal usage.

First claim

What is claimed is:

1. A backplate system for use with a self-contained breathing apparatus (SCBA) comprising:
a backplate operable to attach to a cylinder;
a shoulder plate operable to attach to the backplate, wherein the shoulder plate comprises one or more slots;
a waist plate operable to attach to the backplate, wherein the waist plate comprises one or more slots;
a harness system comprising one or more straps;
one or more connectors operable to attach to the one or more straps and operable to fit into the one or more slots of the shoulder plate and the waist plate, wherein each connector comprises:
a main body operable to fit through a slot of the one or more slots, and operable to be secured into a portion of the slot;
a base operable to attach to a strap of the one or more straps;
a piston attached to the main body operable to move and rotate with the main body, wherein the piston fits within a portion of the base;
a spring located between a portion of the piston and a portion of the base, wherein the spring biases the piston downward, thereby biasing the main body toward the base; and
an axis, and wherein the strap is removably attached to the axis, wherein the axis threads into an opening in the base of the connector.

2. The backplate system of claim 1 , wherein the slot comprises an opening and a half-slot, wherein the opening extends through the shoulder plate or waist plate, wherein the half-slot extends halfway into a thickness of the opening, and wherein the main body fits upward through the opening, rotates 90 degrees, and fits downward into the half-slot.

3. The backplate system of claim 2 , wherein the spring biases the main body into the half-slot.

4. The backplate system of claim 2 , wherein the opening, the half-slot and the main body are rectangular shaped, and wherein the rectangular shape of the half-slot is rotated 90 degrees from the rectangular shape of the opening.

5. The backplate system of claim 1 , wherein the connector further comprises a cover operable to fit over a portion of the piston, a portion of the base, and the spring.

6. The backplate system of claim 1 , wherein the connector further comprises a clip operable to secure one or more elements of the SCBA.

7. The backplate system of claim 6 , wherein the clip comprises a rounded shape operable to fit about a hose of the SCBA.

8. A connector operable to attach to a slot in a backplate system of a self-contained breathing apparatus (SCBA), wherein the connector comprises:
a main body operable to fit through the slot, and operable to be secured into a portion of the slot;
a base operable to attach to a strap, wherein the strap is a part of a harness system;
a piston attached to the main body operable to move and rotate with the main body, wherein the piston fits within a portion of the base;
a spring located between a portion of the piston and a portion of the base, wherein the spring biases the piston downward, thereby biasing the main body toward the base; and
an axis, and wherein the strap is removably attached to the axis, wherein the axis threads into an opening in the base of the connector.

9. The connector of claim 8 further comprising a cover operable to fit over a portion of the piston, a portion of the base, and the spring.

10. The connector of claim 8 , wherein the slot in the backplate system comprises an opening and a half-slot, wherein the half-slot extends halfway into a thickness of the opening, and wherein the main body fits upward through the opening, rotates 90 degrees, and fits downward into the half-slot.

11. The connector of claim 10 , wherein the spring biases the main body into the half-slot.

12. The connector of claim 8 , wherein the backplate system comprises a plurality of slots.

13. The connector of claim 8 , wherein the slot is located on a shoulder plate of the backplate system, and wherein the strap comprises a shoulder strap.

14. The connector of claim 8 , wherein the slot is located on a waist plate of the backplate system, and wherein the strap comprises a waist strap.

15. The connector of claim 8 , wherein the connector further comprises a clip operable to secure one or more elements of the SCBA.

16. A backplate system for use with a self-contained breathing apparatus (SCBA) comprising:
a backplate operable to attach to a cylinder;
a shoulder plate operable to attach to the backplate, wherein the shoulder plate comprises one or more slots;
a waist plate operable to attach to the backplate, wherein the waist plate comprises one or more slots;
a harness system comprising one or more straps;
one or more connectors operable to attach to the one or more straps and operable to fit into the one or more slots of the shoulder plate and the waist plate, wherein each connector comprises:
a main body operable to fit through a slot of the one or more slots, and operable to be secured into a portion of the slot;
a base operable to attach to a strap of the one or more straps;
a piston attached to the main body operable to move and rotate with the main body, wherein the piston fits within a portion of the base;
a spring located between a portion of the piston and a portion of the base, wherein the spring biases the piston downward, thereby biasing the main body toward the base;
a clip operable to secure one or more elements of the SCBA;
an axis, and wherein the strap is removably attached to the axis, wherein the axis threads into an opening in the base of the connector; and
a cover operable to fit over a portion of the piston, a portion of the base, and the spring.

Assignees

• Honeywell Int Inc

Inventors

• Liu Bruce
• Hua Mark
• Lu Kevin
• Ma Mike

Classifications

• B63C2011/2281

  Devices for securing breathing gas tanks to diving harnesses, or back pieces of diving jackets, e.g. straps; Tensioning devices therefor · CPC title

• A62B25/00

  Devices for storing {or holding or carrying} respiratory or breathing apparatus · CPC title

• A45F3/14

  Carrying-straps; Pack-carrying harnesses · CPC title

• A62B9/04 Primary

  Couplings; Supporting frames · CPC title

• F16B21/06

  Releasable fastening devices with snap-action {(quickly-detachable or mountable nuts to threaded bolts F16B37/0842)} · CPC title