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WO2015059343A1 - Buse anti-ligature - Google Patents

Buse anti-ligature Download PDF

Info

Publication number
WO2015059343A1
WO2015059343A1 PCT/FI2013/050998 FI2013050998W WO2015059343A1 WO 2015059343 A1 WO2015059343 A1 WO 2015059343A1 FI 2013050998 W FI2013050998 W FI 2013050998W WO 2015059343 A1 WO2015059343 A1 WO 2015059343A1
Authority
WO
WIPO (PCT)
Prior art keywords
bulb
cage
ligature
nozzle
support
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/FI2013/050998
Other languages
English (en)
Inventor
Olli HEIKKILÄ
Arto Huotari
Veli VAINIO
Tero KUJAMÄKI
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.)
Marioff Corp Oy
Original Assignee
Marioff Corp Oy
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 Marioff Corp Oy filed Critical Marioff Corp Oy
Priority to FIEP13798363.1T priority Critical patent/FI3060315T3/fi
Priority to EP13798363.1A priority patent/EP3060315B1/fr
Priority to PCT/FI2013/050998 priority patent/WO2015059343A1/fr
Publication of WO2015059343A1 publication Critical patent/WO2015059343A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/28—Accessories for delivery devices, e.g. supports

Definitions

  • the subject matter disclosed herein relates to an anti- ligature nozzle and, more particularly, to an anti-ligature nozzle that prevents people from hurting themselves by hanging on the nozzle.
  • the smoke and fire detectors include a cage having a sensing element, which is integrated with a sprinkler that is connected to a main water line.
  • the sensing element of a cage of a smoke and fire detector detects a smoky or bomby condition in a given unit within a building, at least the local sprinklers activate to permit water to flow out of the sprinklers. In some cases, all the sprinklers in the building activate and in other cases, the activation of the sprinklers is combined with an alarm trigger event.
  • an anti-ligature nozzle includes a cage configured to support a bulb configured to be breakable to activate a water spray and a support element configured to support the cage and to release the cage responsive to a breakage of the bulb.
  • an anti-ligature nozzle includes a bulb, which is breakable to activate a water spray, a cage configured to support the bulb and to direct a weighted wire threaded through cage to break the bulb and a support element configured to support the cage and to release the cage upon a breakage of the bulb by the weighted wire.
  • a fire sprinkler system including an anti-ligature nozzle.
  • the anti-ligature nozzle includes a bulb, which is breakable to activate a water spray, a cage configured to support the bulb and to direct a weighted wire threaded through cage to break the bulb and to activate the water spray and a support element configured to support the cage and to release the cage upon a breakage of the bulb.
  • FIG. 1 is a schematic illustration of a fire sprinkler system in accordance with embodiments
  • FIG. 2 is a perspective view of an anti-ligature nozzle in an operable condition in accordance with embodiments.
  • FIG. 3 is a side view of the anti-ligature nozzle of FIG. 2 in an operating condition
  • FIG. 4 is an enlarged side view of a cage of the anti-ligature nozzle of FIGS. 2 and 3 in accordance with embodiments;
  • FIG. 5 is an enlarged side view of a cage of an anti-ligature nozzle in accordance with alternative embodiments.
  • FIG. 6 is a side view of a portion of a support element of the anti-ligature nozzle of FIGS. 2 and 3 in accordance with embodiments.
  • An anti- ligature nozzle is provided and may be used in concert with a fire sprinkler system of a building.
  • a supply of fluid under pressure is coupled to sprinklers disposed around the building so that when any of the sprinklers detect or bomby condition, the local sprinklers can activate and respond with a flow of water in, e.g., a mist form.
  • the building can be an office building where each individual office has its own individual sprinkler or the building may be a mental institution, a psychiatric ward or a prison. In the case of the mental institution, the psychiatric ward or the prison, each individual cell has its own individual sprinkler but that individual sprinkler is designed to prevent a person in that cell from harming himself by, e.g., hanging from the sprinkler.
  • an anti- ligature nozzle 10 of a sprinkler system 1 1 is provided and may be used in a building, such as a school, an office, a mental institution, psychiatric ward and a prison.
  • the system 11 may include multiple anti- ligature nozzles 10 and one or more of these may be designed to prevent or not allow a person to harm himself by hanging from its components.
  • the system 11 includes a main water line 12 through which pressurized water may be directed, the multiple anti- ligature nozzles 10 arrayed along the main water line 12 and sub-water lines 13 by which the main water line 12 supplies water to the anti- ligature nozzles 10.
  • the multiple anti- ligature nozzles 10 may be disposed throughout the building in which the system 11 is deployed with at least one or more anti- ligature nozzles 10 provided in each room, office, unit or cell in the building.
  • the system 11 may be deployed with at least one or more anti- ligature nozzles 10 provided in each room, office, unit or cell in the building.
  • some areas in the building, such as the lunchroom may have multiple anti- ligature nozzles 10 deployed therein.
  • each of the multiple anti-ligature nozzles 10 includes a nozzle body 20, a bulb 30, a cage 40 and a support element 50.
  • the nozzle body 20 may be coupled to a corresponding one of the sub-water lines 13 or to the main water line 12 and may be provided with an upside-down frusto -conical shape.
  • the nozzle body 20 includes a plurality of emitters 21 disposed about an exterior surface thereof which are disposed to emit water provided from the main water line 12 outwardly when the anti- ligature nozzle 10 is activated. When each of the emitters 21 emits water, the anti- ligature nozzle 10 produces a water spray in multiple radial directions.
  • the bulb 30 is breakable to activate the generation of the water spray and includes a temperature sensitive bulb element 31.
  • the bulb 30 includes a glass encased expandable fluid that expands beyond the capacity of the glass encasement in the presence of elevated ambient temperatures. That is, in accordance with embodiments, the bulb 30 may be disposed to apply pressure to a pip cap within the nozzle body 20 that acts as a plug to prevent water from flowing into and through the emitters 21 until the ambient temperatures around the anti- ligature nozzle 10 reach a design activation temperature. At this temperature, the glass encasement bursts due to the interior pressure of the expandable fluid and allows the pip cap to unplug and permit water flow.
  • the cage 40 is configured to support the bulb 30 and to direct a weighted wire 60, which is threaded through cage 40, toward and into contact with the bulb 30 such that the bulb 30 breaks even if ambient temperatures are less than the design activation temperature to thereby activate the water spray.
  • the cage 40 includes an upper portion 42 and a lower portion 43.
  • the upper portion 42 includes an annular body 420 having through-holes 421 defined therein.
  • the annular body 420 of the upper portion 42 is normally fit inside an annular region defined in the nozzle body 20 and is held in place by the support element 50, as will be described below.
  • the lower portion 43 includes two or more leg portions 430 that extend downwardly from the annular body 420 in a tapered formation.
  • the leg portions 430 may be integrally formed with the annular body 420 and meet at intersection
  • the cage 40 may further include a downwardly curved exterior facing surface 433.
  • the exterior facing surface 433 is coupled to an upper end of the bulb 30 and, in cooperation with the interior facing surface 432, provides only a small window 434 by which the bulb 30 is exposed to ambient temperatures.
  • the cage 40 has an increased thermal mass but the bulb 30 is provided with greater mechanical support and there is a reduced amount of space through which the wire 60 can be threaded.
  • the support element 50 is configured to support the cage 40 to remain suspended by the nozzle body 20 and to release the cage 40 from the nozzle body 20 upon a breakage of the bulb 30 and/or upon an application of weight to the cage 40 that exceeds a design weight limit of the support element 50 (in accordance with some embodiments, the design weight will be the weight of a human being). That is, if an individual attempted to harm himself by hanging from the wire 60, the individual's weight would exceed the design weight limit of the support element 50. As a result, the wire 60 will be drawn by the individual's weight into the bulb 30 such that the bulb 30 will break and the anti- ligature nozzle 10 will be activated to generate the water spray. The individual's weight will also cause the support element 50 to release the cage 40 from the nozzle body 20 (see FIG. 3) so that the individual will be prevented from hanging from the any part of the cage 40.
  • the support element 50 includes a ball bearing support structure 51.
  • the nozzle body 21 is provided with a bearing ring 52 that includes one or more ball bearings 53.
  • the ball bearings 53 are normally biased to extend inwardly from the bearing ring 52 such that they extend into the through-holes 421 defined in the annular body 420 of the upper portion 42 of the cage 40.
  • the bias applied to the ball bearings 53 is sufficient to suspend the cage 40 in nozzle body 20 but will be insufficient to withstand a weight applied to the cage 40 that exceeds the design weight limit of the support element 50 if the bulb 30 is broken.
  • the release of the cage 40 from the nozzle body 20 will cause the anti- ligature nozzle 10 to activate to generate the water spray and may cause the alarm system 14 to activate as well.
  • the water spray or the resultant alarm will then serve as an indication that assistance may be required for the individual who caused the release of the cage 40.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

L'invention concerne une buse (10) anti-ligature comprenant une cage (49) configurée pour supporter une ampoule (30) conçue pour être cassable et activer une pulvérisation d'eau, et un élément de support (50) configuré pour supporter la cage (40) et pour libérer la cage (40) en réponse à une rupture de l'ampoule (30).
PCT/FI2013/050998 2013-10-23 2013-10-23 Buse anti-ligature Ceased WO2015059343A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FIEP13798363.1T FI3060315T3 (fi) 2013-10-23 2013-10-23 Antiligatuurisuutin
EP13798363.1A EP3060315B1 (fr) 2013-10-23 2013-10-23 Buse anti-ligature
PCT/FI2013/050998 WO2015059343A1 (fr) 2013-10-23 2013-10-23 Buse anti-ligature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2013/050998 WO2015059343A1 (fr) 2013-10-23 2013-10-23 Buse anti-ligature

Publications (1)

Publication Number Publication Date
WO2015059343A1 true WO2015059343A1 (fr) 2015-04-30

Family

ID=49679547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2013/050998 Ceased WO2015059343A1 (fr) 2013-10-23 2013-10-23 Buse anti-ligature

Country Status (3)

Country Link
EP (1) EP3060315B1 (fr)
FI (1) FI3060315T3 (fr)
WO (1) WO2015059343A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020088624A1 (en) * 2001-01-10 2002-07-11 Waligorski Gordon J. Sprinkler head cover
WO2003074131A1 (fr) * 2002-03-01 2003-09-12 Perbrisu Limited Appareil de detection et d'extinction d'incendie
WO2004094000A1 (fr) * 2003-04-24 2004-11-04 Marioff Corporation Oy Appareil permettant de bloquer un passage d'ecoulement pour un milieu dans une tete de pulverisation et tete de pulverisation
WO2013117907A2 (fr) * 2012-02-07 2013-08-15 Marioff Corporation Gicleur d'extinction d'incendie par brouillard d'eau avec joint polymère

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3970455B2 (ja) * 1998-02-04 2007-09-05 株式会社横井製作所 スプリンクラーヘッド

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020088624A1 (en) * 2001-01-10 2002-07-11 Waligorski Gordon J. Sprinkler head cover
WO2003074131A1 (fr) * 2002-03-01 2003-09-12 Perbrisu Limited Appareil de detection et d'extinction d'incendie
WO2004094000A1 (fr) * 2003-04-24 2004-11-04 Marioff Corporation Oy Appareil permettant de bloquer un passage d'ecoulement pour un milieu dans une tete de pulverisation et tete de pulverisation
WO2013117907A2 (fr) * 2012-02-07 2013-08-15 Marioff Corporation Gicleur d'extinction d'incendie par brouillard d'eau avec joint polymère

Also Published As

Publication number Publication date
EP3060315A1 (fr) 2016-08-31
FI3060315T3 (fi) 2023-01-13
EP3060315B1 (fr) 2022-11-30

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