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Improved rotational waist pad for self contained breathing apparatus harnesses

A respirator, self-contained technology, used in respiratory protection devices, home appliances, applications, etc., to solve problems such as discomfort, inability to adjust in other ways, and premature wearer fatigue

Active Publication Date: 2013-12-18
3M MATERIAL TECH GUANGZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This weight can render a typical SCBA harness uncomfortable during prolonged use
Also, such harnesses cannot be rotated or otherwise adjusted to accommodate the wearer's normal body movements
This can cause further discomfort
[0004] In addition, typical SCBA suits cannot adjust the force of gravity on the wearer's lumbar region
This unadjustable force can lead to premature fatigue in the wearer

Method used

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  • Improved rotational waist pad for self contained breathing apparatus harnesses
  • Improved rotational waist pad for self contained breathing apparatus harnesses
  • Improved rotational waist pad for self contained breathing apparatus harnesses

Examples

Experimental program
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Embodiment Construction

[0023] The disclosed harness design is a rotation feature incorporated into an SCBA harness that carries the entire SCBA assembly and also provides self-adjusting rotation of the assembly with the normal body movements of the wearer.

[0024] figure 1 is a schematic illustration of a self-contained breathing apparatus ("SCBA") 10 carried by firefighters, other emergency service workers, and the like. The SCBA 10 includes a gas cylinder 20 , one or more pressure reducers 22 or regulators 24 , a mask 26 and a hose assembly 30 . Air cylinder 20 is a pressurized bottle or tank that provides a supply of breathing air to the wearer. In one embodiment, tank 20 may be of the type that initially maintains air at a pressure of approximately 316.4 kilograms per square centimeter (4,500 PSIG). Gas cylinder 20 may include a conventional outlet valve 21 and pressure gauge (not shown). Gas cylinder 20, outlet valve 21, pressure reducer 22 or regulator 24 and other facilities can use harne...

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PUM

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Abstract

A rotational waist pad assembly is disclosed for use in self contained breathing apparatus harnesses. The waist pad assembly includes a plurality of plate members that enable a discrete pad member to rotate with respect to the harness during use. This rotation enables the waist pad to remain stationary with respect to the user's lower back, while still enabling the harness to rotate as necessary according to the user's movements. The plurality of plate members are configured to engage each other so that a discrete and selectable amount rotation is enabled between the waist pad assembly and the harness. In one embodiment, the waist pad assembly can rotate about 60-degrees with respect to the harness. The plurality of plate members is enclosed in a pad to ensure user comfort.

Description

technical field [0001] The present disclosure relates generally to the field of self-contained breathing apparatus, and more particularly to a rotating waist pad assembly for use in a self-contained breathing apparatus harness. Background technique [0002] Self-contained breathing apparatus (“SCBA”) are typically worn by individuals to provide breathable air to the wearer while performing activities in hazardous environments, such as when fighting fires and in other smoke or gas pervasive environments. A traditional SCBA typically includes a mask, pressurized gas cylinders, and hose. The mask covers the wearer's nose, mouth and eyes and includes lenses for viewing the outside world, and is supplied with air from a cylinder via a hose. The gas cylinder is fastened to the wearer's body by a harness. [0003] Typical SCBA gear includes a waist belt and shoulder straps that allow the gas cylinders and associated hoses, regulators, etc. to be worn in a backpack. Some pressuri...

Claims

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Application Information

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IPC IPC(8): A62B9/04A45F3/08A45F3/10
CPCA45F3/047A45F3/08A62B9/04
Inventor 徐志雷胡湘蓉
Owner 3M MATERIAL TECH GUANGZHOU
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