WO2015132954A1 - スプリンクラーヘッドカバー - Google Patents
スプリンクラーヘッドカバー Download PDFInfo
- Publication number
- WO2015132954A1 WO2015132954A1 PCT/JP2014/055973 JP2014055973W WO2015132954A1 WO 2015132954 A1 WO2015132954 A1 WO 2015132954A1 JP 2014055973 W JP2014055973 W JP 2014055973W WO 2015132954 A1 WO2015132954 A1 WO 2015132954A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- melting point
- point alloy
- low melting
- cover plate
- sprinkler head
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
- B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards
-
- 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
- A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
Definitions
- the present invention relates to a sprinkler head cover that normally covers and conceals a sprinkler head with a cover plate, and that covers the sprinkler head when the cover plate is dropped during a fire.
- a sprinkler head cover 100 shown in FIG. 6 includes a cylindrical housing 101 and a disc-shaped cover plate 102.
- the housing 101 is made of an elastic member and can accommodate the sprinkler head SH inside.
- a claw 103 is formed on the upper part of the inner peripheral portion of the housing 101 so as to protrude downward. The claw 103 can be screwed into a spiral groove R formed on the outer peripheral surface of the sprinkler head SH.
- a plurality of legs 104 extending downward are formed at the lower end of the housing 101, and the tips of the legs 104 are bent to form connection portions 105 with the cover plate 102.
- the connecting portion 105 is connected to the cover plate 102 by a low melting point alloy 106. In the event of a fire, the low melting point alloy 106 is melted, so that the cover plate 102 is dropped from the connecting portion 105 and the sprinkler head SH accommodated in the housing 101 is exposed.
- the housing 101 including the cover plate 102 and the joint portion 105 uses a material such as copper or brass with good solderability.
- surface treatment such as copper plating is performed on the surfaces of the housing 101 and the cover plate 102 in order to improve solderability.
- the low melting point alloy 106 is heated to a molten state, the joining portion 105 and the cover plate 102 are attached to the molten low melting point alloy 106, and the low melting point alloy 106 is allowed to cool and harden. It had to take time for a series of processes.
- an object of the present invention is to provide a sprinkler head cover that can simplify the joining process between a housing and a cover plate in a sprinkler head cover in which the cover plate falls due to the heat of a fire.
- the present invention provides the following sprinkler head cover. That is, a cylindrical housing connected to the sprinkler head, a cover plate installed below the housing, and a low melting point alloy interposed between the housing and the cover plate, the low melting point alloy having a predetermined shape.
- the low melting point alloy is joined to the housing or the cover plate through an adhesive member made of a solder piece and placed on the surface of the low melting point alloy.
- the low melting point alloy is heated and melted in the joining process of the housing and the cover plate as in the conventional product.
- the step of cooling and solidifying the molten low melting point alloy can be omitted.
- the work that requires the skill of the operator, such as soldering of a low melting point alloy is eliminated and the working conditions are reduced, the process is simplified and the work can be performed more easily than in the past.
- a sheet piece in which an adhesive is applied or soaked on both surfaces can be installed on the surface of the low melting point alloy.
- a jelly-like or highly viscous adhesive can be used as the adhesive member.
- a plurality of joints with the cover plate can be formed in the lower part of the housing. According to this, it is possible to install the housing and the cover plate with a predetermined space therebetween. Air flow can be taken into the housing by the space.
- the heat transmitted from the cover plate to the low melting point alloy is blocked by the heat insulating layer so that the heat is accumulated in the low melting point alloy, and the low melting point alloy It has the effect of promoting melting of the alloy.
- the low melting point alloy or the adhesive member can be prevented from being damaged by absorbing and mitigating the impact by the elasticity of the adhesive member.
- the adhesive member curable with ultraviolet rays By making the adhesive member curable with ultraviolet rays, the low melting point alloy and the housing / cover plate can be quickly joined.
- the housing and the cover plate can be joined without melting the low melting point alloy, thereby simplifying the joining process of the housing and the cover plate. be able to.
- Sectional drawing when the sprinkler head cover of the first embodiment is mounted on the sprinkler head The top view of the sprinkler head cover of 1st Embodiment 2 is an exploded sectional view taken along line XX in FIG. Modification example in which cover plate and low melting point alloy are joined with adhesive: (a) sectional view, (b) plan view (A) Perspective view of the low melting point alloy of the second embodiment, (b) Cross sectional view of the main part of the low melting point alloy part of the second embodiment. Sectional view of a conventional sprinkler head cover
- the sprinkler head cover SC ⁇ b> 1 includes a housing 1, a cover plate 2, a low melting point alloy 3, and a joining member 4.
- the housing 1 has a cylindrical shape, and the cylindrical portion 5 has an engagement structure with the sprinkler head SH. Specifically, a plurality of claws 6 for engaging with the sprinkler head SH are provided on the inner peripheral side of the cylindrical portion 5. The claw 6 can be engaged with a spiral groove 7 formed on the outer peripheral portion of the sprinkler head SH. When the housing 1 is rotated, the claw 6 moves along the spiral groove 7 so that the housing 1 is moved up and down in the figure. Can be moved to.
- a flange portion 8 is formed extending outward.
- the flange portion 8 is formed over the entire circumference of the cylindrical portion 5.
- the present invention is not limited to this, and the flange portion 8 may be partially formed at several locations of the cylindrical portion 5. . As shown in FIG. 1, the flange portion 8 is disposed at a position close to the bottom surface of the ceiling.
- a leg 9 is formed in the vicinity of the flange portion 8 downward.
- the tip of the leg 9 is bent to form a connection portion 10 with the cover plate 2.
- the connecting portion 10 is bent so as to be substantially parallel to the flange portion 8. Since the connecting portion 10 is provided with a step with respect to the flange portion 8, the housing 1 and the cover plate 2 can be installed with a predetermined space 15 therebetween. An airflow can be taken into the housing 1 by the space.
- the cover plate 2 is formed from a thin metal plate. Specifically, it is made of brass or copper, making it easier to absorb heat during a fire.
- the surface exposed to the indoor side of the cover plate 2 (the lower surface in the figure) is subjected to a surface treatment such as painting or plating.
- a leaf spring 2 ⁇ / b> A is installed between the cover plate 2 and the flange portion 8.
- the leaf spring 2A has an action of urging the cover plate 2 to drop when the low melting point alloy 3 is melted by the heat of a fire.
- the low melting point alloy 3 is interposed between the connecting portion 10 of the housing 1 and the cover plate 2.
- the low melting point alloy 3 is an alloy having a melting point lower than the operating temperature of the sprinkler head SH. When the operating temperature of the sprinkler head is 72 ° C., the low melting point alloy 3 has a melting point of 50 to 65 ° C.
- the low melting point alloy 3 has a rectangular parallelepiped shape, and as shown in FIG. 3, a first surface 11 connected to the connection portion 10, and a second surface 12 connected to the cover plate on the opposite side of the first surface 11
- the adhesive member 4 is installed on the surfaces of the first surface 11 and the second surface 12.
- one low melting point alloy 3 is installed at each connection portion 10 of the housing 1, and at that time, if the thickness dimension H of the low melting point alloy 3 is not uniform, the connection portion 10 and the cover plate 2 are not connected. There may be a gap between them. By uniformizing the thickness dimension H of the low melting point alloy 3, the connection between the connecting portion 10 and the cover plate 2 is stabilized.
- the volume of the low melting point alloy 3 uniform, it is possible to prevent variations in the timing at which the low melting point alloy 3 of each connection portion 10 is melted by the heat of the fire. Furthermore, if the surface area of the low melting point alloy 3 is increased, the low melting point alloy 3 can easily absorb the heat of the fire, and the low melting point alloy 3 can be melted and the cover plate 2 can be dropped at the initial stage of the fire. As a specific example for increasing the surface area of the low melting point alloy 3, grooves and holes are formed on the side surfaces of the low melting point alloy 3.
- the adhesive member 4 joins the low melting point alloy 3 to the connecting portion 10 and the cover plate 2.
- a double-sided tape 13 is used as an example of the adhesive member 4.
- the double-sided tape 13 is a sheet piece in which an adhesive is applied or soaked on the surface of a substrate such as a film, paper, or cloth. When the adhesive is directly applied to the connection surface 10 or the surface of the first surface 11 of the low melting point alloy 3, the adhesive may flow down and adhere to unnecessary portions such as the side surfaces of the low melting point alloy 3. However, only the connecting portion 10 and the first surface 11 can be joined by using the double-sided tape 13.
- the double-sided tape 13 is affixed to the first surface 11 and the second surface 12 of the low-melting point alloy 3 described above, and the low-melting point alloy 3, the connecting portion 10, and the cover plate 2 are joined.
- the double-sided tape 13 to be applied to the first surface 11 is preferably thicker than the double-sided tape to be applied to the second surface 12.
- the double-sided tape 13 applied to the first surface serves as a heat insulating layer, making it difficult to transfer the heat propagated from the cover plate 2 to the low melting point alloy 3 to the connecting portion 10 and keeping the heat in the low melting point alloy 3. Has the effect of promoting melting.
- the adhesive 14 can be used instead of the double-sided tape 13. If the adhesive 14 is made of a highly viscous or jelly-like material, it can be prevented from dripping down to unnecessary portions. As shown in FIG. 4, with the cover plate 2 and the second surface 12 of the low melting point alloy 3 in contact with each other, the adhesive 14 is poured and applied to the edge of the second surface with a dispenser or the like. By applying the adhesive 14 to the edge of the second surface 12, the upper surface of the cover plate 2 and the lower side surface of the low melting point alloy 3 are joined. In FIG. 4, the adhesive 14 is applied to three locations on the edge of the second surface, but may be applied to the entire periphery of the edge of the second surface.
- the second surface 12 and the cover plate 2 are in direct contact with each other. Therefore, the heat absorbed by the cover plate 2 is directly transmitted to the low melting point alloy 3, and the time required for the low melting point alloy 3 to melt in a fire can be shortened.
- the adhesive when an ultraviolet curable adhesive is used, the adhesive is immediately solidified by irradiating ultraviolet rays, so that the joining operation can be performed in a short time. Further, when an adhesive having elasticity is used, even if the sprinkler head cover SC1 is accidentally dropped, the impact can be absorbed and reduced by the elasticity of the adhesive 14. Thereby, deformation, cracking, chipping, etc. of the low melting point alloy 3 can be prevented, and peeling of the cover plate 2 can be prevented. Alternatively, when the adhesive 14 having thermal conductivity is used, the heat absorbed by the cover plate 2 can be propagated to the low melting point alloy 3 through the adhesive 14 and the melting of the low melting point alloy 3 can be promoted. .
- the sprinkler head cover SC1 shown in FIG. 1 is engaged with the spiral groove 7 on the outer peripheral portion of the sprinkler head SH.
- the flange portion 8 is disposed at a position close to the lower surface of the ceiling, and a gap 15 with a predetermined interval is provided between the flange portion 8 and the cover plate 2.
- the air current from the heat of the fire stays on the bottom of the ceiling.
- the thermal air current of the fire passes through the cover plate 2 and the gap 15 and reaches the low melting point alloy 3.
- the cover plate 2 and the low melting point alloy 3 absorb heat from the hot air stream.
- the heat absorbed by the cover plate 2 is also propagated to the low melting point alloy 3 and promotes melting of the low melting point alloy 3.
- the adhesive member 4 (double-sided tape 13) joined to the connecting portion 10 is thicker than the adhesive member 4 adhering to the surface of the cover plate 2 and has a heat insulating effect, so that it is propagated to the low melting point alloy 3. It is difficult for heat to be transmitted to the connection part 10. Therefore, heat remains in the low melting point alloy 3 and the low melting point alloy 3 is melted by the heat.
- FIG. 5 As a second embodiment of the present invention, a sprinkler head cover in which a low melting point alloy has an L shape will be described.
- symbol is attached
- the low melting point alloy 20 of the second embodiment is L-shaped as shown in FIG. 5A, and has a shape in which a plate-like low melting point alloy is bent by approximately 90 ° at an intermediate portion.
- a first surface 11 that joins the housing 1 is provided on one side of the bent portion of the low melting point alloy 20, and a second surface 12 that joins the cover plate 2 is provided on the other side. .
- a hole 21 is formed in the first surface 11.
- the hole 21 is inserted into a protrusion 22 formed on the leg 9 of the housing 1.
- the protrusions 22 of the legs 9 provided at three locations on the housing 1 are inserted into the holes 21 of the low melting point alloy 20, the legs 9 and the low melting point alloy 20 are engaged.
- the second surface 12 of the low melting point alloy 20 is placed on the cover plate 2.
- the adhesive 14 is dropped on the edge of the second surface 12 of each low melting point alloy 20 to join the cover plate 2 and the low melting point alloy 20.
- the low melting point alloy 20 is joined to the housing 1 and the cover plate 2.
- the bonding strength is improved.
- the adhesive 14 does not sag and can be joined by the adhesive 14 only around the hole 21 and the protrusion 22.
- the housing 1 and the cover plate 2 can be joined without melting the low-melting point alloy 20, so that the work time required for heating and solidifying the low-melting point alloy as in the prior art.
- the sprinkler head cover having a predetermined quality can be manufactured even if the operator does not have advanced skills.
- the adhesive 14 is applied to the hole 21 and the edge of the second surface 12 from the direction A indicated by the arrow in FIG. Since it can apply
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
すなわち、スプリンクラーヘッドと接続される筒状のハウジングと、ハウジングの下方に設置されるカバープレートと、ハウジングとカバープレートの間に介在する低融点合金とを備え、低融点合金は所定の形状を有する半田片からなり、低融点合金の表面に設置した粘着部材を介して低融点合金がハウジングまたはカバープレートと接合しているものである。
これによれば、低融点合金の表面に設置した粘着部材を介してハウジングとカバープレートを接合することで、従来品のようにハウジングとカバープレートの接合工程において、低融点合金を加熱して溶融する工程と、溶融状態の低融点合金を冷却して固化する工程を省くことができる。さらに低融点合金の半田付けのように作業者のスキルが必要な作業がなくなり作業条件も減ることから工程が簡素化され、従来よりも容易に作業を行うことが可能となる。
本発明の実施形態のスプリンクラーヘッドカバーSC1は、ハウジング1、カバープレート2、低融点合金3、接合部材4を備える。
本発明の第2実施形態として、低融点合金がL字型形状をしたスプリンクラーヘッドカバーについて説明する。尚、第1実施形態と構造が同じ箇所には同符号を付して詳細な説明は省略する。
2 カバープレート
3 低融点合金
4 粘着部材
8 鍔部
9 脚
10 接続部
11 第1の面
12 第2の面
13 両面テープ(シート片)
14 接着剤
Claims (9)
- スプリンクラーヘッドと接続される筒状のハウジングと、
ハウジングの下方に設置されるカバープレートと、
ハウジングとカバープレートの間に介在する低融点合金とを備え、
低融点合金は所定の形状を有する半田片からなり、
低融点合金の表面に設置した粘着部材を介して低融点合金がカバープレートと接合していることを特徴とするスプリンクラーヘッドカバー。 - スプリンクラーヘッドと接続される筒状のハウジングと、
ハウジングの下方に設置されるカバープレートと、
ハウジングとカバープレートの間に介在する低融点合金とを備え、
低融点合金は所定の形状を有する半田片からなり、
低融点合金の表面に設置した粘着部材を介して低融点合金がハウジングと接合していることを特徴とするスプリンクラーヘッドカバー。 - 粘着部材は両面に接着剤を塗布または染み込ませたシート片である請求項1または請求項2記載のスプリンクラーヘッドカバー。
- 粘着部材はゼリー状や高粘度の接着剤である請求項1または請求項2記載のスプリンクラーヘッドカバー。
- ハウジングと低融点合金の間に断熱層を有する請求項1~請求項4何れか1項記載のスプリンクラーヘッドカバー。
- 粘着部材は弾性を有する請求項1~請求項5何れか1項記載のスプリンクラーヘッドカバー。
- 粘着部材は紫外線により硬化する請求項1~請求項5何れか1項記載のスプリンクラーヘッドカバー。
- ハウジングの下部にはカバープレートとの接合部が複数形成されている請求項1~請求項7何れか1項記載のスプリンクラーヘッドカバー。
- 低融点合金はハウジング側に接続する第1の面と、カバープレート側に接続する第2の面を有する請求項1~請求項8何れか1項記載のスプリンクラーヘッドカバー。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016506053A JP6208324B2 (ja) | 2014-03-07 | 2014-03-07 | スプリンクラーヘッドカバー |
CN201480076277.0A CN106068144A (zh) | 2014-03-07 | 2014-03-07 | 喷洒头盖 |
US15/123,719 US20170007869A1 (en) | 2014-03-07 | 2014-03-07 | Sprinkler Head Cover |
PCT/JP2014/055973 WO2015132954A1 (ja) | 2014-03-07 | 2014-03-07 | スプリンクラーヘッドカバー |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/055973 WO2015132954A1 (ja) | 2014-03-07 | 2014-03-07 | スプリンクラーヘッドカバー |
Publications (1)
Publication Number | Publication Date |
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WO2015132954A1 true WO2015132954A1 (ja) | 2015-09-11 |
Family
ID=54054787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/055973 WO2015132954A1 (ja) | 2014-03-07 | 2014-03-07 | スプリンクラーヘッドカバー |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170007869A1 (ja) |
JP (1) | JP6208324B2 (ja) |
CN (1) | CN106068144A (ja) |
WO (1) | WO2015132954A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2652587C2 (ru) * | 2015-11-18 | 2018-04-26 | Общество С Ограниченной Ответственностью "Форносовский Литейно-Механический Завод" | Спринклер с контролем срабатывания |
US11074834B1 (en) * | 2019-03-21 | 2021-07-27 | Minimax Viking Research & Development Gmbh | Fire protection sprinkler concealment assembly having an external indicia |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10272201A (ja) * | 1997-03-31 | 1998-10-13 | Nohmi Bosai Ltd | スプリンクラ消火設備 |
JP2000037473A (ja) * | 1998-07-21 | 2000-02-08 | Nohmi Bosai Ltd | スプリンクラヘッド |
JP2005270155A (ja) * | 2004-03-23 | 2005-10-06 | Senju Sprinkler Kk | スプリンクラーヘッドカバー |
WO2005097265A1 (ja) * | 2004-03-30 | 2005-10-20 | Senju Sprinkler Co., Ltd. | スプリンクラーヘッドカバーおよびスプリンクラーヘッド |
JP2011172653A (ja) * | 2010-02-23 | 2011-09-08 | Senju Sprinkler Kk | スプリンクラーヘッドカバー及びコンシールド型スプリンクラーヘッド |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003325695A (ja) * | 2002-03-06 | 2003-11-18 | Senju Sprinkler Kk | スプリンクラーヘッドカバー |
CH697817B1 (de) * | 2002-06-12 | 2009-02-27 | Peter Kammer | Auf Wärme reagierender Verschluss einer Düse an einem Netz für Löschmittel. |
US7213319B2 (en) * | 2004-11-29 | 2007-05-08 | Tyco Fire Products Lp | Method of installing a dry sprinkler installation |
US8002046B2 (en) * | 2008-10-10 | 2011-08-23 | Neeb Daniel A | Apparatus for reducing the incidence of tampering with automatic fire sprinkler assemblies |
-
2014
- 2014-03-07 WO PCT/JP2014/055973 patent/WO2015132954A1/ja active Application Filing
- 2014-03-07 JP JP2016506053A patent/JP6208324B2/ja active Active
- 2014-03-07 US US15/123,719 patent/US20170007869A1/en not_active Abandoned
- 2014-03-07 CN CN201480076277.0A patent/CN106068144A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10272201A (ja) * | 1997-03-31 | 1998-10-13 | Nohmi Bosai Ltd | スプリンクラ消火設備 |
JP2000037473A (ja) * | 1998-07-21 | 2000-02-08 | Nohmi Bosai Ltd | スプリンクラヘッド |
JP2005270155A (ja) * | 2004-03-23 | 2005-10-06 | Senju Sprinkler Kk | スプリンクラーヘッドカバー |
WO2005097265A1 (ja) * | 2004-03-30 | 2005-10-20 | Senju Sprinkler Co., Ltd. | スプリンクラーヘッドカバーおよびスプリンクラーヘッド |
JP2011172653A (ja) * | 2010-02-23 | 2011-09-08 | Senju Sprinkler Kk | スプリンクラーヘッドカバー及びコンシールド型スプリンクラーヘッド |
Also Published As
Publication number | Publication date |
---|---|
JPWO2015132954A1 (ja) | 2017-03-30 |
CN106068144A (zh) | 2016-11-02 |
US20170007869A1 (en) | 2017-01-12 |
JP6208324B2 (ja) | 2017-10-04 |
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