WO2012129737A1 - Coussinet rotatif perfectionné de protection de la taille conçu pour des harnais d'appareil respiratoire autonome - Google Patents

Coussinet rotatif perfectionné de protection de la taille conçu pour des harnais d'appareil respiratoire autonome Download PDF

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Publication number
WO2012129737A1
WO2012129737A1 PCT/CN2011/000572 CN2011000572W WO2012129737A1 WO 2012129737 A1 WO2012129737 A1 WO 2012129737A1 CN 2011000572 W CN2011000572 W CN 2011000572W WO 2012129737 A1 WO2012129737 A1 WO 2012129737A1
Authority
WO
WIPO (PCT)
Prior art keywords
back plate
outer fixing
rotational
plate
fixing cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/000572
Other languages
English (en)
Inventor
Zhilei Xu
Xiangrong HU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Eagle Safety Equipment Ltd
Original Assignee
Shanghai Eagle Safety Equipment Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Eagle Safety Equipment Ltd filed Critical Shanghai Eagle Safety Equipment Ltd
Priority to CN201180069719.5A priority Critical patent/CN103458972B/zh
Priority to PCT/CN2011/000572 priority patent/WO2012129737A1/fr
Publication of WO2012129737A1 publication Critical patent/WO2012129737A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/04—Couplings; Supporting frames
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A45F3/047—Sacks or packs carried on the body by means of two straps passing over the two shoulders with adjustable fastenings for the shoulder straps or waist belts
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A45F3/08—Carrying-frames; Frames combined with sacks

Definitions

  • the disclosure is generally related to the field of self contained breathing apparatuses, and more particularly to a rotational waist pad assembly for use in self-contained breathing apparatus harnesses.
  • SCBA's Self-contained breathing apparatuses
  • Conventional SCBA's generally include a face piece, a pressurized gas cylinder, and a hose.
  • the face piece which covers the wearer's nose, mouth and eyes and includes a lens for external viewing, is supplied with air from the cylinder via the hose.
  • the cylinder is secured to the wearer's body by a harness.
  • Typical SCBA harnesses include a belt and shoulder straps, which allow the cylinder and associated hoses, regulators, etc. to be worn in a backpack style.
  • Some pressurized gas cylinders can weigh thirty or more pounds (with associated equipment such as regulators, hoses, etc. adding even more weight). Such weight can render typical SCBA harnesses uncomfortable for long term use.
  • such harnesses cannot rotate or otherwise adjust to accommodate normal body movements of the wearer. This can lead to further discomfort.
  • a rotational waist pad assembly for use in self contained breathing apparatus harnesses.
  • the waist pad assembly includes a belt portion to secure the associated SCBA to the user's waist.
  • the waist pad assembly includes a plurality of inter-engaged elements that enable the waist pad assembly to rotate with respect to the harness during use. This rotation enables the waist pad assembly to remain stationary with respect to the user's waist and lower back while enabling the harness to rotate as necessary according to the user's movements.
  • the plurality of inter-engaged elements are configured to allow a predetermined range of rotation between the waist pad assembly and the harness.
  • the waist pad assembly can rotate about 60-degrees with respect to the harness.
  • the plurality of inter-engaged elements can be enclosed in padding for user comfort. Other embodiments are described and claimed.
  • a self-contained breathing apparatus harness comprising a back plate, and a waist pad portion comprising a pad portion, a rotational plate, and an outer fixing cover.
  • the pad portion may be fixed to the rotational plate.
  • the rotational plate may be disposed between the back plate and the outer fixing cover.
  • the outer fixing cover may have a protrusion engaged with an opening in the back plate to axially fix the outer fixing cover, the rotational plate, and the pad portion to the back plate while allowing the rotational plate and the pad portion to rotate with respect to the back plate.
  • a self-contained breathing apparatus harness comprising a back plate for engaging a gas cylinder, a pair of shoulder straps connected to the back plate, a belt portion connected to the back plate, and a waist pad portion connected to the belt portion.
  • the waist pad portion may comprise a pad portion fixed to a rotational plate, and an outer fixing cover.
  • the rotational plate may be disposed between the back plate and the outer fixing cover.
  • the outer fixing cover may include a protrusion disposed within an opening in the back plate. The protrusion may axially fix the outer fixing cover, the rotational plate, and the pad portion to the back plate while enabling the rotational plate and the pad portion to rotate with respect to the back plate.
  • a waist pad assembly for use with a self-contained breathing apparatus harness.
  • the waist pad assembly comprises a waist pad portion including a pad portion, a rotational plate and an outer fixing cover.
  • the rotational plate may be fixed to the pad portion.
  • the rotational plate may be disposed between a back plate of a self-contained breathing apparatus harness and the outer fixing cover.
  • the outer fixing cover may include a protrusion disposed within an opening in the back plate. The protrusion may axially fix the outer fixing cover, the rotational plate, and the pad portion to the back plate while enabling the rotational plate and the pad portion to rotate with respect to the back plate.
  • FIG. 1 is a block diagram of a self-contained breathing apparatus
  • FIG. 2 is a view of the self-contained breathing apparatus of FIG. 1 mounted on the disclosed harness;
  • FIG. 3 is a view illustrating the wearer side of the disclosed harness, including an exemplary rotational mechanism
  • FIG. 4 shows an isolated view of the disclosed rotational pad assembly with the cover open showing the rotation assembly
  • FIG. 5 is an exploded isometric view of the disclosed rotational pad assembly and the harness structure
  • FIG. 6 is a reverse exploded isometric view of the disclosed rotational pad assembly and the harness structure shown in FIG. 5;
  • FIG. 7 shows a plan view of a back plate portion of the disclosed harness
  • FIGS. 8A-8F show a variety of views of an outer fixing cover of the disclosed rotational pad assembly
  • FIGS. 9A and 9B show the stages of inter-engagement between an outer fixing cover and the back plate.
  • FIG. 10 shows a plan view of a rotational plate of the disclosed rotational pad assembly
  • FIG. 1 1 is a view showing the rotational interaction between the rotational plate and the harness back plate.
  • FIGS. 12A-12D show a variety of views of an inner cover of the disclosed rotational pad assembly.
  • the disclosed harness design is a rotary feature incorporated into a SCBA harness that carries the entire SCBA assembly and also provides self-adjusting rotation of the assembly to follow the normal body movements of the wearer.
  • FIG. 1 is a schematic diagram of a self-contained breathing apparatus ("SCBA") 10 carried by firefighters, other emergency services workers, and the like.
  • the SCBA 10 includes an air cylinder 20, one or more pressure reducers or regulators 22, 24, a face piece 26, and a hose assembly 30.
  • the air cylinder 20 is a pressurized cylinder or tank that provides a supply of breathing air to the wearer.
  • the tank 20 may be of a type that initially holds air at a pressure of about 316.4 kilograms/square centimeter (4,500 PSIG).
  • the air cylinder 20 may include a conventional outlet valve 21 and pressure gauge (not shown).
  • the air cylinder 20, outlet valve 21, pressure reducers or regulators 22, 24 and other equipment can be loaded on a user's back using a harness 32 (FIG. 2), and the face piece 26 can be placed over the user's face such that it covers the user's mouth, nose or both, in conventional fashion.
  • the hose assembly 30 is arranged to extend comfortably between the pressure reducer 22 and the face piece 26, without interfering with the user's natural movements.
  • FIG. 2 shows the SCBA of FIG. 1 mounted on an exemplary harness 32.
  • the harness 32 may include a back plate 34 ⁇ see FIG. 3), a belt portion 36 and a pair of shoulder straps 38.
  • One end of the cylinder 20 may be connected to a lower end of the back plate 34 adjacent to the outlet valve 21.
  • a body portion of the cylinder 20 may be connected to an upper end of the back plate 34 via a strap 40.
  • the strap 40 may be loosened (i.e., to mount the cylinder on the harness), and tightened (i.e., to fix the cylinder to the harness during use), via a clamp mechanism (not shown). In this way, the cylinder 20 can be worn by a user in a manner similar to a backpack.
  • this feature enables the waist pad 42 and belt portion 36 of the harness 32 to rotate with respect to the back plate 34.
  • Such rotational freedom allows the waist pad 42 and belt portion 36 to remain substantially stationary with respect to the wearer's waist, while the back plate 34 and the remainder of the harness 32 rotate along with the wearer's upper body.
  • FIG. 3 shows a wearer-side view of the harness 32, including back plate 34, belt portion 36, waist pad portion 42, shoulder straps 38, face piece 26 and hose assembly 30.
  • the cylinder 20 is not shown in this view.
  • FIG. 4 shows a detail view of the back plate 34, waist pad portion 42 and belt portion 36 in a partially disassembled condition.
  • the waist pad portion 42 may include a pad portion 44 and a mechanism engaging portion 46 connected together by a hinge 48.
  • the hinge 48 enables the pad portion 44 to be flipped up to expose the rotation mechanism 50.
  • the pad portion 44 is folded down to cover the rotation mechanism 50.
  • the pad portion 44 can be secured in the closed or covered position using any of a variety of fastening techniques such as hook and loop fasteners (i.e., Velcro), snaps, buttons and the like.
  • the pad portion 44 is secured using corresponding pairs of Velcro strips 52A, B.
  • the pad portion 44 will be in contact with the wearer's lower back during use, it can include padding as desired to enhance comfort.
  • the pad portion is made of scale-board, cloth and sponge, sewn together.
  • Arrows "A” show the rotational freedom that the mechanism 50 provides the waist pad portion 42 with respect to the back plate 34.
  • rotation between the waist pad portion 42 and the back plate 34 may be provided within a limited range so that the back plate 34 (and attached cylinder 20) will not over-rotate with respect to the waist pad portion 42.
  • FIGS. 5 and 6 show the arrangement of elements that facilitate the disclosed rotational waist pad feature.
  • the back plate 34 is sandwiched between an inner cover 54, a rotation plate 56, and an outer fixing cover 58.
  • the pad portion 44 is not shown in these figures. It will be appreciated, however, that when assembled for use the rotation plate 56 is fixed to the mechanism engaging portion 46 (see FIG. 4) of the waist pad portion 42. In some embodiments, the rotation plate 56 is sewn into the mechanism engaging portion 46, though other fixing techniques can also be used, such as laminating and the like.
  • the outer fixing cover 58 includes a protrusion 60 that extends through an opening 62 in the rotation plate 56 and engages the back plate 34 to axially fix the cover 58 and rotation plate 56 to the back plate 34.
  • This connection while fixing the parts in axial relation to each other, allows the rotation plate 56 to rotate with respect to the back plate 34 in the directions indicated by arrows "A" in FIG. 4.
  • Inner cover 54 includes one or more connectors 63 that enable the inner cover to snap into engagement with the outer fixing cover 58.
  • the inner cover 54 provides a smooth finished surface to the cylinder-engaging side of the back plate 34.
  • FIG. 7 is a detail view of a lower portion of the back plate 34 shown in FIGS. 5 and 6. A variety of the functional aspects of the back plate 34 can be seen, including central opening 64, first and second rotation keys 66 A, B and locking key 68.
  • the central opening 64 in the back plate 34 is circular, with first and second flat side portions 70A, B.
  • the flat side portions 70A, B are sized to allow the protrusion 60 of the outer fixing cover 58 to pass through the opening 64, and then to lock against the flat side portions 70A, B when the fixing cover 58 is rotated.
  • the protrusion 60 of the outer fixing cover 58 has first and second flat sides 72 A, 72B which correspond to the flat portions 70A, B of the central opening 64 in the back plate 34.
  • the protrusion 60 also has a pair of lips 74A, B defined by the rounded portions 76A, B of the protrusion 60.
  • the protrusion 60 of the outer fixing cover 58 can be aligned with the central opening 64 in the back plate 34 so that the corresponding flat sides 72 A, B of the cover 58 align with the flat side portions 70 A, B of the central opening. So aligned, the protrusion 60 can be pressed through the central opening 64 until the lips 74A, B pass through the opening. This position is shown in FIG. 9A.
  • the outer fixing cover 58 can then be rotated so that the lips 74A, B lock behind the flat side portions 70A, B of the central opening 64.
  • the inter-engagement of the lips 74A, B and the flat side portions 70A, B thereby locks the outer fixing cover 58 to the back plate 34. This locked position is shown in FIG. 9B.
  • the locking key 68 of the back plate 34 may be received within a locking recess 78 formed in one of the rounded portions 76A, B of the protrusion 60.
  • the locking recess 78 is formed in the second rounded portion 76B of the protrusion 60.
  • this locking recess 78 prevents over-rotation of the outer fixing cover 58 with respect to the back plate 34, ensuring that the outer fixing cover 58 remains locked to the back plate 34.
  • the back plate 34 can include first and second rotation keys " .66 A, B disposed on a side of the back plate facing the rotation plate 56 (see FIGS. 5 and 6) when assembled.
  • the rotation keys 66A, B comprise discrete protrusions configured to be received within recesses 80A, B (see FIG. 10) of the rotation plate 56 during operation.
  • the recesses 80A, B in the rotation plate 56 enable the rotation plate (and the waist pad portion 42) to rotate by a predetermined amount with respect to the back plate 34.
  • recesses 80A, B each form a pair of stop surfaces 82A, 82B which abut the first and second rotation keys 66 A, B when the rotation plate 56 is rotated with respect to the back plate 34 (or vice versa) by a maximum desired amount.
  • this maximum rotation is about 60-degrees (as shown by angle a (FIG. 1 1).
  • the illustrated arrangement allows the waist pad portion 42 and belt portion 36 to rotate about 60-degrees in either direction with respect to the back plate 34 and remainder of the harness 32. It will be appreciated that the device is not limited in this regard, and thus, rotational ranges greater or less than 60-degrees can also be used.
  • FIG. 12 shows the inner cover 54 in greater detail. As previously noted, the inner cover provides a smooth finished surface to the cylinder-engaging side of the back plate 34.
  • Inner cover 54 may include one or more connectors 63 to enable the cover to snap into engagement with the protrusion 60 of the outer fixing cover 58.
  • these connectors 63 are snap-connectors which have barbs that engage an underside surface of the flat regions 72A, B of the outer fixing cover protrusion 60.
  • the connectors can be any fixing means desired, including screws or other fasteners.
  • the inner cover 54 could be glued in place with a suitable adhesive.
  • the inner cover 54 may be provided with one or more centering protrusions 84 which are positioned to ensure proper alignment of the connectors 63 (on the inner cover) with the flat regions 72A, B (on the outer fixing cover 58).
  • these protrusions 84 are positioned on the inner cover 54 so that they align with opposite ends of the locking recess 78 of the outer fixing cover 58.
  • the inner cover 54 may further be provided with a weakened zone 86 to enable the cover to be broken in order to disassemble the device for repair and/or replacement of one or more pieces.
  • this weakened zone 86 is a reduced-thickness section disposed across the diameter of the cover on the inside surface of the cover.
  • the disclose design enables the waist pad portion 42 and the connected belt portion 36 to rotate with respect to the back plate 34 of the harness 32 to provide a more comfortable range of motion to the wearer.
  • the design thus regulates weight forces applied to the wearer's lower body, protecting the wearer's waist region, and resulting in improved work efficiency.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

La présente invention se rapporte à un ensemble coussinet rotatif de protection de la taille destiné à être utilisé dans des harnais d'appareil respiratoire autonome. L'ensemble coussinet de protection de la taille comprend une pluralité d'éléments plaques qui permettent à un élément coussinet discret de tourner par rapport au harnais pendant son utilisation. Cette rotation permet au coussinet de protection de la taille de rester fixe par rapport à la partie inférieure du dos de l'utilisateur tout en permettant également au harnais de tourner si cela est nécessaire selon les mouvements de l'utilisateur. La pluralité d'élément plaques sont configurés pour venir en prise les uns avec les autres de sorte à permettre une rotation discrète et sélectionnable entre l'ensemble coussinet de protection de la taille et le harnais. Selon un mode de réalisation, l'ensemble coussinet de protection de la taille peut tourner d'environ 60 degrés par rapport au harnais. La pluralité d'éléments plaques sont enfermés dans un coussinet pour assurer un certain confort à l'utilisateur.
PCT/CN2011/000572 2011-04-01 2011-04-01 Coussinet rotatif perfectionné de protection de la taille conçu pour des harnais d'appareil respiratoire autonome Ceased WO2012129737A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180069719.5A CN103458972B (zh) 2011-04-01 2011-04-01 用于自携式呼吸器装具的改进的旋转式腰垫
PCT/CN2011/000572 WO2012129737A1 (fr) 2011-04-01 2011-04-01 Coussinet rotatif perfectionné de protection de la taille conçu pour des harnais d'appareil respiratoire autonome

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/000572 WO2012129737A1 (fr) 2011-04-01 2011-04-01 Coussinet rotatif perfectionné de protection de la taille conçu pour des harnais d'appareil respiratoire autonome

Publications (1)

Publication Number Publication Date
WO2012129737A1 true WO2012129737A1 (fr) 2012-10-04

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Application Number Title Priority Date Filing Date
PCT/CN2011/000572 Ceased WO2012129737A1 (fr) 2011-04-01 2011-04-01 Coussinet rotatif perfectionné de protection de la taille conçu pour des harnais d'appareil respiratoire autonome

Country Status (2)

Country Link
CN (1) CN103458972B (fr)
WO (1) WO2012129737A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2523334A (en) * 2014-02-20 2015-08-26 Draeger Safety Uk Ltd Garment
WO2022123376A1 (fr) * 2020-12-09 2022-06-16 3M Innovative Properties Company Harnais ayant un mécanisme à dégagement rapide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107530559B (zh) * 2015-02-13 2020-05-26 霍尼韦尔国际公司 用于自给式呼吸装置的腰垫缓冲系统
US20200238110A1 (en) * 2017-10-18 2020-07-30 3M Innovative Properties Company Articulating Support Assembly For A Self-Contained Breathing Apparatus

Citations (3)

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Publication number Priority date Publication date Assignee Title
US20030140392A1 (en) * 2000-06-19 2003-07-31 Peter Kling Supporting structure for a respiratory air container or other objects
CN1697617A (zh) * 2003-11-19 2005-11-16 株式会社山清 背伏装置
CN101686749A (zh) * 2007-04-18 2010-03-31 斯博瑞安呼吸防护有限责任公司 用于自给式呼吸器的背包组件

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Publication number Priority date Publication date Assignee Title
US4982884A (en) * 1986-03-18 1991-01-08 Wise Stephen A Backpack carrier assemblies
NO322177B1 (no) * 2005-01-13 2006-08-21 Bergans Fritid As Opplagring av et hoftebelte til en ryggsekk
GB0806359D0 (en) * 2008-04-08 2008-05-14 Scott Health & Safety Ltd Carrying system for breathing apparatus
CN201248937Y (zh) * 2008-09-22 2009-06-03 上海宝亚安全装备有限公司 正压式空气呼吸器背板组件
GB2503137B (en) * 2009-05-06 2014-04-30 Draeger Safety Uk Ltd Harness for breathing apparatus
GB2470032B (en) * 2009-05-06 2014-02-12 Draeger Safety Uk Ltd Improved harness for breathing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030140392A1 (en) * 2000-06-19 2003-07-31 Peter Kling Supporting structure for a respiratory air container or other objects
CN1697617A (zh) * 2003-11-19 2005-11-16 株式会社山清 背伏装置
CN101686749A (zh) * 2007-04-18 2010-03-31 斯博瑞安呼吸防护有限责任公司 用于自给式呼吸器的背包组件

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2523334A (en) * 2014-02-20 2015-08-26 Draeger Safety Uk Ltd Garment
WO2022123376A1 (fr) * 2020-12-09 2022-06-16 3M Innovative Properties Company Harnais ayant un mécanisme à dégagement rapide

Also Published As

Publication number Publication date
CN103458972A (zh) 2013-12-18
CN103458972B (zh) 2016-04-20

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