JP2018063460A - Dustproof cover for sensor - Google Patents

Dustproof cover for sensor Download PDF

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JP2018063460A
JP2018063460A JP2016199655A JP2016199655A JP2018063460A JP 2018063460 A JP2018063460 A JP 2018063460A JP 2016199655 A JP2016199655 A JP 2016199655A JP 2016199655 A JP2016199655 A JP 2016199655A JP 2018063460 A JP2018063460 A JP 2018063460A
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sensor
cover
dust
belt
dust cover
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JP6741546B2 (en
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泰徳 大矢
Yasutoku Oya
泰徳 大矢
信幸 秋山
Nobuyuki Akiyama
信幸 秋山
直子 鈴木
Naoko Suzuki
直子 鈴木
直紀 萩原
Naoki Hagiwara
直紀 萩原
雅人 安藤
Masahito Ando
雅人 安藤
宏 金子
Hiroshi Kaneko
宏 金子
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Nittan Co Ltd
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Nittan Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To realize a dustproof cover for a sensor, which can be easily detached from a sensor.SOLUTION: A dustproof cover 100 for a sensor includes: projections 13 to be engaged with recessions (openings 3a) on a front surface of a sensor 1 so as to attach the dustproof cover 100 for a sensor to the sensor 1; and a protrusion 14 protruded to be separated from a front surface of the sensor 1. The protrusion 14 is pushed in toward the sensor 1 so as to elastically deform a part of the dustproof cover 100 for a sensor. Thus, the projections 13 are disengaged from the recessions and attachment is released. The dustproof cover 100 for a sensor can be easily detached from the sensor 1 by performing one push of the protrusion 14 toward the sensor 1.SELECTED DRAWING: Figure 1

Description

本発明は、内装工事などの作業中に発生する粉塵から感知器を保護するための感知器用防塵カバーに関する。   The present invention relates to a dustproof cover for a sensor for protecting the sensor from dust generated during work such as interior work.

従来、内装工事などの作業中に発生する粉塵が感知器内に侵入しないように、内装工事が完了するまで感知器を覆うように取り付けておく防塵カバーが知られている（例えば、特許文献１参照。）。
この防塵カバーは、感知器の側面に形成された複数の煙流入口を略密閉状に覆って埃や塵の侵入を防止する凹状部と、凹状部の内面に形成された複数の係合突起などを備えており、その係合突起により係合させて、防塵カバーを感知器に係着可能にしている。 Conventionally, there is known a dustproof cover that is attached so as to cover the sensor until the interior work is completed so that dust generated during work such as interior work does not enter the sensor (for example, Patent Document 1). reference.).
The dust cover includes a concave portion that covers a plurality of smoke inlets formed on the side surface of the sensor in a substantially sealed manner to prevent dust and dust from entering, and a plurality of engagement protrusions formed on the inner surface of the concave portion. The dustproof cover can be engaged with the sensor by being engaged by the engagement protrusion.

特開平６−３１４３８６号公報JP-A-6-314386

ところで、上記特許文献１では防塵カバーを取り外す場合、防塵カバーに形成されている切欠や溝に係合可能な係合部を備えた取り外し治具を使うようになっている。具体的には、取り外し治具の係合部を所定の切欠や溝に嵌め込んだ状態で、その取り外し治具を回転させるようにして、防塵カバーを取り外すようになっている。
そのため、取り外し治具が手元にない場合や、高所の場合は特に作業性が悪く、防塵カバーを取り外す作業が困難になってしまうことがある問題があった。 By the way, in the above-mentioned patent document 1, when removing a dustproof cover, a removal jig provided with an engaging part engageable with a notch or a groove formed in the dustproof cover is used. Specifically, the dustproof cover is removed by rotating the removal jig while the engagement portion of the removal jig is fitted in a predetermined notch or groove.
Therefore, when the removal jig is not at hand or at a high place, the workability is particularly bad, and there is a problem that the work of removing the dustproof cover may be difficult.

本発明の目的は、感知器から容易に取り外すことができる感知器用防塵カバーを提供することである。   An object of the present invention is to provide a dust cover for a sensor that can be easily removed from the sensor.

以上の課題を解決するため、請求項１に記載の発明は、
所定の設置面に凸設された感知器の外形に対応した形状を有し、前記感知器を覆い隠すように取り付けられる感知器用防塵カバーであって、
前記感知器の表面の凹部に係合して、当該感知器用防塵カバーを前記感知器に係着させる凸部と、
前記感知器の表面から離間するように隆起した隆起部と、を備え、
前記隆起部が前記感知器に向けて押し込まれて当該感知器用防塵カバーの一部が弾性変形することで、前記凹部から前記凸部が外れて係着解除されるように構成されていることを特徴とする。 In order to solve the above problems, the invention described in claim 1
A dust-proof cover for a sensor having a shape corresponding to the outer shape of a sensor projecting on a predetermined installation surface and attached to cover the sensor,
A convex part that engages with a concave part on the surface of the sensor and attaches the dust cover for the sensor to the sensor;
A raised portion raised so as to be separated from the surface of the sensor,
The raised portion is pushed toward the sensor and a part of the dust-proof cover for the sensor is elastically deformed, so that the convex part is detached from the concave part and the engagement is released. Features.

上記構成の感知器用防塵カバーであれば、隆起部を感知器に向けてワンプッシュするように押し込めば、感知器表面の凹部から凸部が外れて感知器との係着が解除されるので、感知器用防塵カバーを感知器から容易に取り外すことができる。   If it is a dustproof cover for a sensor with the above configuration, if the bulging part is pushed so as to push the sensor toward the sensor, the convex part will come off from the concave part of the sensor surface, and the engagement with the sensor will be released. The dust cover for the sensor can be easily removed from the sensor.

請求項２に記載の発明は、請求項１に記載の感知器用防塵カバーにおいて、
当該感知器用防塵カバーの縁よりも内側には２本の切り込み部が略平行に形成され、その２本の切り込み部に挟まれている帯状部が設けられており、
前記帯状部の長手方向両側にそれぞれ前記凸部が設けられ、その一対の凸部の間に前記隆起部が設けられていることを特徴とする。 The invention according to claim 2 is the dust cover for the sensor according to claim 1,
Inside the edge of the dust cover for the sensor, two cut portions are formed substantially in parallel, and a band-shaped portion sandwiched between the two cut portions is provided,
The convex portions are respectively provided on both sides in the longitudinal direction of the belt-shaped portion, and the raised portions are provided between the pair of convex portions.

上記構成によれば、感知器用防塵カバーの一部である帯状部は弾性変形し易くなっており、隆起部を感知器に向けて押し込むことで凸部が感知器の凹部から容易に外れるので、その感知器用防塵カバーの取り外しが容易になる。   According to the above configuration, the band-shaped part that is a part of the dust cover for the sensor is easily elastically deformed, and the convex part is easily detached from the concave part of the sensor by pushing the raised part toward the sensor. The sensor dust cover can be easily removed.

請求項３に記載の発明は、請求項２に記載の感知器用防塵カバーにおいて、
前記隆起部が前記感知器に向けて押し込まれて前記帯状部が弾性変形することに伴い、前記凹部から前記凸部が外れ、その弾性変形した帯状部が復元する作用で当該感知器用防塵カバーが前記感知器から浮き上がるように構成されていることを特徴とする。 The invention according to claim 3 is the dust cover for the sensor according to claim 2,
As the raised portion is pushed toward the sensor and the belt-like portion is elastically deformed, the convex portion is removed from the concave portion, and the elastically deformed belt-like portion is restored, whereby the dustproof cover for the sensor is It is configured to float from the sensor.

上記構成によれば、感知器用防塵カバーの取り外しがより容易になる。   According to the said structure, removal of the dust cover for sensors becomes easier.

請求項４に記載の発明は、請求項２又は３に記載の感知器用防塵カバーにおいて、
前記隆起部が前記感知器に向けて押し込まれた際、前記帯状部が選択的に弾性変形するように、前記帯状部の両側の防塵カバーの立体形状を保持する補強構造部が設けられていることを特徴とする。 The invention according to claim 4 is the dust cover for the sensor according to claim 2 or 3,
Reinforcing structure portions that hold the three-dimensional shape of the dust-proof covers on both sides of the belt-like portion are provided so that the belt-like portion is selectively elastically deformed when the raised portion is pushed toward the sensor. It is characterized by that.

上記構成によれば、隆起部を感知器に向けて押し込んで帯状部を好適に弾性変形させて、凸部を感知器の凹部から良好に外すことができる。   According to the said structure, a convex part can be favorably removed from the recessed part of a sensor by pushing a bulging part toward a sensor and making a strip | belt-shaped part elastically deform suitably.

本発明によれば、感知器に確実に係着し、かつ容易に取り外すことができる感知器用防塵カバーが得られる。   ADVANTAGE OF THE INVENTION According to this invention, the dustproof cover for sensors which can be reliably engaged with a sensor and can be removed easily is obtained.

実施形態１の感知器用防塵カバーと、天井に凸設された感知器を示す斜視図である。It is a perspective view which shows the dustproof cover for sensors of Embodiment 1, and the sensor protrudingly provided by the ceiling. 実施形態１の感知器用防塵カバーを感知器から取り外す手順を断面視して示す説明図（ａ）（ｂ）（ｃ）である。It is explanatory drawing (a) (b) (c) which shows the procedure which removes the dustproof cover for sensors of Embodiment 1 from a sensor in cross section. 実施形態２の感知器用防塵カバーを示す斜視図である。It is a perspective view which shows the dustproof cover for sensors of Embodiment 2. 実施形態２の感知器用防塵カバーを感知器から取り外す手順を断面視して示す説明図（ａ）（ｂ）（ｃ）（ｄ）である。It is explanatory drawing (a) (b) (c) (d) which shows the procedure which removes the dust-proof cover for sensors of Embodiment 2 from a sensor by cross-sectional view. 感知器用防塵カバーの変形例を示す斜視図（ａ）（ｂ）である。It is a perspective view (a) (b) which shows the modification of the dustproof cover for sensors.

以下、図面を参照して、本発明に係る感知器用防塵カバーの実施形態について詳細に説明する。但し、以下に述べる実施形態には、本発明を実施するために技術的に好ましい種々の限定が付されているが、本発明の範囲を以下の実施形態及び図示例に限定するものではない。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a dust cover for a sensor according to the present invention will be described in detail with reference to the drawings. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

自動火災報知システムが導入されている建物には、煙や熱や炎を感知する感知器が天井や側壁などに設置されている。
感知器用防塵カバー１００は、内装工事などの作業中に発生する粉塵から感知器１を保護するために、その感知器１を覆い隠すように取り付けて使用し、作業完了後に感知器１から取り外すものである。
本実施形態では、煙を感知するために所定の設置面である天井に凸設された感知器１に取り付けて使用する感知器用防塵カバー１００について説明する。 In buildings where automatic fire alarm systems are installed, detectors that detect smoke, heat, and flame are installed on the ceiling and side walls.
The dust cover 100 for the sensor is used so as to cover the sensor 1 in order to protect the sensor 1 from dust generated during work such as interior work, and is removed from the sensor 1 after the work is completed. It is.
In the present embodiment, a sensor dustproof cover 100 that is used by being attached to the sensor 1 protruding from the ceiling, which is a predetermined installation surface, for detecting smoke will be described.

（実施形態１）
図１に示すように、感知器１は天井に凸設されており、天井面に露出した略円板状の本体部２と、本体部２の中央側から下方に突き出た略円柱状のヘッド部３とを有している。
ヘッド部３の側面には、感知器１の内部に煙を流入させるための開口３ａが形成されている。本実施形態では、ヘッド部３の側面に４つの開口３ａが周方向に等間隔で形成されている。
この開口３ａは、感知器用防塵カバー１００を感知器１に取り付けるための凹部として機能する。 (Embodiment 1)
As shown in FIG. 1, the sensor 1 protrudes from the ceiling, has a substantially disc-shaped main body portion 2 exposed on the ceiling surface, and a substantially cylindrical head protruding downward from the center side of the main body portion 2. Part 3.
An opening 3 a for allowing smoke to flow into the sensor 1 is formed on the side surface of the head portion 3. In the present embodiment, four openings 3 a are formed in the side surface of the head portion 3 at equal intervals in the circumferential direction.
The opening 3 a functions as a recess for attaching the sensor dust cover 100 to the sensor 1.

感知器用防塵カバー１００は、図１に示すように、ヘッド部３を覆う椀状部１０と、本体部２を覆う鍔状部２０とを有するカバー部材であり、感知器１の外形に対応した形状を有している。
また、感知器用防塵カバー１００には、椀状部１０の立体形状を保持するために形成された補強構造部３０が設けられている。
この感知器用防塵カバー１００は、図２（ａ）に示すように、断面視略ハット形を呈する樹脂材料の成形品であり、可撓性を有している。なお、感知器用防塵カバー１００が例えば３ｇ〜５ｇの軽量になるように、その厚みは薄く成形されている。 As shown in FIG. 1, the dust cover 100 for the sensor is a cover member having a hook-like part 10 that covers the head part 3 and a hook-like part 20 that covers the main body part 2, and corresponds to the outer shape of the sensor 1. It has a shape.
The detector dustproof cover 100 is provided with a reinforcing structure 30 formed to maintain the three-dimensional shape of the bowl-shaped portion 10.
As shown in FIG. 2A, the dust cover 100 for a sensor is a molded product of a resin material having a substantially hat shape in cross section, and has flexibility. In addition, the thickness is formed thin so that the dust-proof cover 100 for sensors may be light weight of 3g-5g, for example.

また、感知器用防塵カバー１００の縁よりも内側には、感知器用防塵カバー１００の一部分がカットされてなる２本の切り込み部１１が略平行に形成されており、その２本の切り込み部１１に挟まれた箇所に帯状部１２が設けられている。
本実施形態１では、切り込み部１１の端部が椀状部１０と鍔状部２０の境界に位置するように、椀状部１０に２本の切り込み部１１が形成されている。
つまり、帯状部１２は、椀状部１０に設けられている。 Further, inside the edge of the dust cover 100 for the sensor, two cuts 11 formed by cutting a part of the dust cover 100 for the sensor are formed substantially in parallel, and the two cuts 11 are formed in the two cuts 11. A band-like portion 12 is provided at the sandwiched portion.
In the first embodiment, the two notches 11 are formed in the saddle-like portion 10 so that the end of the notch 11 is located at the boundary between the saddle-like portion 10 and the saddle-like portion 20.
That is, the belt-like part 12 is provided on the hook-like part 10.

帯状部１２の長手方向両側であって、椀状部１０の側面に相当する位置には、感知器用防塵カバー１００の内面に突出した凸部１３が設けられている。
この凸部１３は、感知器１の表面の凹部である開口３ａに係合して、感知器用防塵カバー１０を感知器１に係着させるために設けられている。
そして、感知器用防塵カバー１００を感知器１に係着させ、椀状部１０でヘッド部３を覆うように開口３ａを塞ぐことによって、開口３ａから感知器１内に粉塵を侵入させないようにすることができる。 Convex portions 13 projecting from the inner surface of the dust-proof cover 100 for sensors are provided on both sides in the longitudinal direction of the belt-like portion 12 and at positions corresponding to the side surfaces of the hook-like portion 10.
The convex portion 13 is provided to engage with the opening 3 a that is a concave portion on the surface of the sensor 1 to engage the sensor dust-proof cover 10 with the sensor 1.
And the dust cover 100 for sensors is attached to the sensor 1, and the opening 3a is covered so that the head part 3 may be covered with the hook-shaped part 10, so that dust does not enter the sensor 1 from the opening 3a. be able to.

また、帯状部１２における一対の凸部１３の間に、感知器１の表面から離間するように隆起したアーチ状の隆起部１４が設けられている。
隆起部１４は、樹脂材料で成形した感知器用防塵カバー１００に２本の切り込み部１１を形成する際に、カバーの一部（具体的には、帯状部１２の幅方向側面部分）を切り落とすようにして形成されている。
この隆起部１４を感知器１に向けて押し込むと、感知器用防塵カバー１００の一部（ここでは帯状部１２）が弾性変形するようになっている。
隆起部１４は、後述するように、感知器１から感知器用防塵カバー１００を取り外すために設けられている。 Further, between the pair of convex portions 13 in the belt-like portion 12, an arch-like raised portion 14 that is raised so as to be separated from the surface of the sensor 1 is provided.
The raised portion 14 cuts off a part of the cover (specifically, the side surface portion in the width direction of the belt-like portion 12) when the two cut portions 11 are formed in the dust cover 100 for the sensor formed of a resin material. Is formed.
When the raised portion 14 is pushed toward the sensor 1, a part of the dust cover 100 for the sensor (here, the belt-like part 12) is elastically deformed.
As will be described later, the raised portion 14 is provided to remove the sensor dust cover 100 from the sensor 1.

補強構造部３０は、隆起部１４が感知器１に向けて押し込まれた際、帯状部１２が選択的に弾性変形するように、椀状部１０の立体形状を保持するために形成されている。
隆起部１４が押し込まれて帯状部１２が好適に弾性変形すれば、凸部１３を開口３ａから好適に外すことができる。 The reinforcing structure portion 30 is formed to maintain the three-dimensional shape of the hook-shaped portion 10 so that the band-shaped portion 12 is selectively elastically deformed when the raised portion 14 is pushed toward the sensor 1. .
If the raised part 14 is pushed in and the belt-like part 12 is suitably elastically deformed, the convex part 13 can be suitably removed from the opening 3a.

次に、本実施形態１の感知器用防塵カバー１００を感知器１から取り外す手順について説明する。   Next, a procedure for removing the dust cover 100 for the sensor of Embodiment 1 from the sensor 1 will be described.

感知器用防塵カバー１００は、図２（ａ）に示すように、凸部１３が感知器１の開口３ａに係合した状態で、天井に設置された感知器１を覆うように取り付けられている。
この感知器用防塵カバー１００は、建物の施工現場で感知器１が天井に設置された後、速やかに取り付けられることが好ましい。
また、感知器用防塵カバー１００が感知器１に取り付けられた状態で施工現場に搬入される場合、感知器用防塵カバー１００が装着された感知器１を天井に設置するようにしてもよい。なお、工場出荷時、感知器１に感知器用防塵カバー１００を取り付けて梱包することで、梱包箱内の紙塵が感知器１内に侵入しないようにガードできる。 As shown in FIG. 2A, the sensor dustproof cover 100 is attached so as to cover the sensor 1 installed on the ceiling in a state where the convex portion 13 is engaged with the opening 3 a of the sensor 1. .
The dust cover 100 for the sensor is preferably attached promptly after the sensor 1 is installed on the ceiling at the construction site of the building.
In addition, when the sensor dustproof cover 100 is carried into the construction site while being attached to the sensor 1, the sensor 1 with the sensor dustproof cover 100 attached thereto may be installed on the ceiling. At the time of shipment from the factory, by attaching the sensor dust cover 100 to the sensor 1 and packing it, the paper dust in the packing box can be guarded against entering the sensor 1.

そして、所定の施工作業の完了後に感知器１から感知器用防塵カバー１００を取り外す際、隆起部１４を感知器１に向けて押し込む。
図２（ｂ）に示すように、隆起部１４が感知器１に向けて押し込まれると、帯状部１２が弾性変形して撓むことで、開口３ａから凸部１３が外れて感知器用防塵カバー１００の係着が解除される。
こうして感知器１との係着が解除された感知器用防塵カバー１００は、図２（ｃ）に示すように、天井の感知器１から自重で離脱するので、その取り外し作業を容易に行うことができる。
なお、感知器用防塵カバー１００は、３ｇ〜５ｇ程度の軽量な樹脂製の部材であるので、天井から落下させるように取り外すことが可能になっている。 And when removing the dust cover 100 for sensors from the sensor 1 after completion | finish of a predetermined construction work, the protruding part 14 is pushed toward the sensor 1. FIG.
As shown in FIG. 2B, when the raised portion 14 is pushed toward the sensor 1, the belt-like portion 12 is elastically deformed and bent, so that the convex portion 13 is removed from the opening 3a and the dust-proof cover for the sensor. 100 locks are released.
As shown in FIG. 2 (c), the dust cover 100 for the sensor, which is thus disengaged from the sensor 1, is detached from the sensor 1 on the ceiling with its own weight, so that it can be easily removed. it can.
In addition, since the dust-proof cover 100 for sensors is a lightweight resin member of about 3 to 5 g, it can be removed so as to be dropped from the ceiling.

このように、実施形態１の感知器用防塵カバー１００は、隆起部１４を感知器１に向けてワンプッシュすれば、開口３ａから凸部１３が外れて感知器１との係着が解除されるので、感知器１から容易に取り外すことができる。
つまり、従来技術の防塵カバーのように、取り外し作業に用いる専用の治具がなくても、この感知器用防塵カバー１００であれば感知器１から容易に取り外すことができる。
特に、隆起部１４を感知器１に向けて押し込む単純な作業で、感知器１から感知器用防塵カバー１００を取り外すことができるので、例えば、脚立などの踏台がない場合でも、天井に届く程度の棒状部材を作業者が使って隆起部１４をワンプッシュするようにすれば、感知器用防塵カバー１００を感知器１から容易に取り外すことができる。 As described above, in the dust cover 100 for the sensor of the first embodiment, when the raised portion 14 is pushed once toward the sensor 1, the convex portion 13 is detached from the opening 3a and the engagement with the sensor 1 is released. Therefore, it can be easily removed from the sensor 1.
That is, the sensor dustproof cover 100 can be easily detached from the sensor 1 without a dedicated jig used for the removal work as in the conventional dustproof cover.
In particular, the dust-proof cover 100 for the sensor can be removed from the sensor 1 by a simple operation of pushing the raised portion 14 toward the sensor 1, so that it can reach the ceiling even when there is no stepladder such as a stepladder. If the operator uses the rod-shaped member to push the raised portion 14 once, the sensor dust cover 100 can be easily removed from the sensor 1.

（実施形態２）
次に、本発明に係る感知器用防塵カバーの実施形態２について説明する。なお、実施形態１と同一部分には同符号を付し、異なる部分についてのみ説明する。 (Embodiment 2)
Next, a second embodiment of the dust cover for a sensor according to the present invention will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and only different parts will be described.

実施形態１の感知器用防塵カバー１００では、切り込み部１１の端部が椀状部１０と鍔状部２０の境界に位置しているが、実施形態２の感知器用防塵カバー１００では、図３に示すように、切り込み部１１を形成するカットは鍔状部２０に達しており、切り込み部１１の端部は椀状部１０と鍔状部２０の境界よりも感知器用防塵カバー１００の縁寄りの位置にある。
具体的に、本実施形態２での切り込み部１１の端部は、椀状部１０と鍔状部２０の境界と、感知器用防塵カバー１００の縁のほぼ中間に位置している。
そして、実施形態２の感知器用防塵カバー１００の帯状部１２は、その中央部分が椀状部１０にあって、長手方向の両側が鍔状部２０にあるように設けられている。 In the dust cover 100 for the sensor according to the first embodiment, the end of the cut portion 11 is located at the boundary between the hook-shaped portion 10 and the hook-shaped portion 20, but in the dust cover 100 for the sensor according to the second embodiment, FIG. As shown, the cut forming the cut portion 11 reaches the hook-shaped portion 20, and the end of the cut portion 11 is closer to the edge of the dust cover 100 for the sensor than the boundary between the hook-shaped portion 10 and the hook-shaped portion 20. In position.
Specifically, the end portion of the cut portion 11 in the second embodiment is located approximately in the middle of the boundary between the hook-like portion 10 and the hook-like portion 20 and the edge of the sensor dust-proof cover 100.
The belt-like portion 12 of the dust cover 100 for a sensor according to the second embodiment is provided such that the central portion is in the hook-like portion 10 and both sides in the longitudinal direction are in the hook-like portion 20.

次に、本実施形態２の感知器用防塵カバー１００を感知器１から取り外す手順について説明する。
感知器用防塵カバー１００は、図４（ａ）に示すように、凸部１３が感知器１の開口３ａに係合した状態で、天井に設置された感知器１を覆うように取り付けられている。 Next, a procedure for removing the dust cover 100 for the sensor of the second embodiment from the sensor 1 will be described.
As shown in FIG. 4A, the dust cover 100 for the sensor is attached so as to cover the sensor 1 installed on the ceiling in a state where the convex portion 13 is engaged with the opening 3 a of the sensor 1. .

そして、所定の施工作業の完了後に感知器１から感知器用防塵カバー１００を取り外す際、隆起部１４を感知器１に向けて押し込む。
図４（ｂ）に示すように、隆起部１４が感知器１に向けて押し込まれると、帯状部１２が弾性変形して撓むことで、開口３ａから凸部１３が外れて感知器用防塵カバー１００の係着が解除される。 And when removing the dust cover 100 for sensors from the sensor 1 after completion | finish of a predetermined construction work, the protruding part 14 is pushed toward the sensor 1. FIG.
As shown in FIG. 4B, when the raised portion 14 is pushed toward the sensor 1, the belt-like portion 12 is elastically deformed and bent, so that the convex portion 13 is removed from the opening 3a and the dust-proof cover for the sensor. 100 locks are released.

またこのとき、図４（ｂ）に示すように、帯状部１２の長手方向の両端側が、感知器１（鍔状部２０）から離間するように弾性変形している。
そして、図４（ｃ）に示すように、この弾性変形した帯状部１２が反り返る作用で、鍔状部２０が帯状部１２側に引き寄せられるようにして、感知器用防塵カバー１００が感知器１から浮き上がる。
こうして感知器１との係着が解除され、感知器１から浮き上がった感知器用防塵カバー１００は、図４（ｄ）に示すように、天井の感知器１から自重で離脱するので、その取り外し作業を容易に行うことができる。 Further, at this time, as shown in FIG. 4B, both ends in the longitudinal direction of the belt-like portion 12 are elastically deformed so as to be separated from the sensor 1 (the hook-like portion 20).
Then, as shown in FIG. 4C, the elastically deformed belt-like portion 12 is warped so that the hook-like portion 20 is drawn toward the belt-like portion 12, so that the sensor dust-proof cover 100 is removed from the sensor 1. Float up.
As shown in FIG. 4 (d), the dust cover 100 for the sensor lifted from the sensor 1 and released from the sensor 1 is released by its own weight. Can be easily performed.

このように、実施形態２の感知器用防塵カバー１００は、隆起部１４を感知器１に向けて押し込んで帯状部１２を弾性変形させれば、開口３ａから凸部１３が外れて感知器１との係着が解除され、また、その弾性変形した帯状部１２が復元する作用で感知器用防塵カバー１００が感知器１から浮き上がるので、感知器用防塵カバー１００を感知器１から容易に取り外すことができる。
つまり、感知器用防塵カバー１００の隆起部１４をワンプッシュするようにすれば、感知器用防塵カバー１００を感知器１から容易に取り外すことができる。 Thus, in the dust cover 100 for the sensor of the second embodiment, when the raised portion 14 is pushed toward the sensor 1 to elastically deform the belt-like portion 12, the convex portion 13 is removed from the opening 3a and the sensor 1 The sensor dust-proof cover 100 is lifted from the sensor 1 by the action of the elastically deformed belt-like portion 12 being restored, so that the sensor dust-proof cover 100 can be easily removed from the sensor 1. .
That is, if the raised portion 14 of the sensor dustproof cover 100 is pushed once, the sensor dustproof cover 100 can be easily detached from the sensor 1.

なお、本発明は上記実施形態に限られるものではない。
例えば、図５（ａ）に示すように、感知器用防塵カバー１００の鍔状部２０に曲率の異なる２本の円弧状の切り込み部を並べて形成しておき、その２本の切り込み部に挟まれた部分に相当する把手部１５を引き起こした状態にして、その感知器用防塵カバー１００を感知器１に取り付けるようにしてもよい。
また、図５（ｂ）に示すように、感知器用防塵カバー１００の椀状部１０の平面部に曲率の異なる２本の円弧状の切り込み部を並べて形成しておき、その２本の切り込み部に挟まれた部分に相当する把手部１５を引き起こした状態にして、その感知器用防塵カバー１００を感知器１に取り付けるようにしてもよい。
なお、図５（ａ）（ｂ）に示す感知器用防塵カバー１００の椀状部１０の側面部には、ヘッド部３の側面に形成されている４つの開口３ａに対応させて、４つの凸部１３が設けられている。 The present invention is not limited to the above embodiment.
For example, as shown in FIG. 5A, two arc-shaped cut portions having different curvatures are formed side by side on the bowl-shaped portion 20 of the dust cover 100 for the sensor, and are sandwiched between the two cut portions. The dust-proof cover 100 for the sensor may be attached to the sensor 1 in a state where the handle portion 15 corresponding to the portion is raised.
Further, as shown in FIG. 5B, two arc-shaped cut portions having different curvatures are formed side by side on the flat surface portion of the bowl-shaped portion 10 of the dust cover 100 for a sensor, and the two cut portions are formed. The dust-proof cover 100 for the sensor may be attached to the sensor 1 in a state where the handle 15 corresponding to the portion sandwiched between the two is raised.
5A and 5B, there are four protrusions corresponding to the four openings 3a formed on the side surface of the head portion 3 on the side surface portion of the bowl-shaped portion 10 of the dust cover 100 for the sensor. A portion 13 is provided.

このようなアーチ状の把手部１５を備えた感知器用防塵カバー１００であれば、把手部１５を掴んで下方に引き下ろすようにすれば、感知器１から感知器用防塵カバー１００を容易に取り外すことができる。
また例えば、脚立などの踏台がない場合でも、天井に届く程度の棒状部材を作業者が使い、その棒状部材の先端側を把手部１５に引っ掛けて引き下ろすようにすれば、感知器１から感知器用防塵カバー１００を容易に取り外すことができる。この場合、棒状部材の先端側に鉤手状のフック部を設けるようにすれば、より容易に把手部１５を引っ掛けて引き下ろすことが可能になる。 With the sensor dustproof cover 100 having such an arch-shaped handle portion 15, the sensor dustproof cover 100 can be easily removed from the sensor 1 by grasping the handle portion 15 and pulling it down. Can do.
Further, for example, even when there is no stepladder such as a stepladder, if an operator uses a rod-shaped member that reaches the ceiling and the tip of the rod-shaped member is hooked on the handle portion 15 and pulled down, the sensor 1 senses it. The dexterous dust cover 100 can be easily removed. In this case, if a hook-like hook portion is provided on the distal end side of the rod-like member, the handle portion 15 can be more easily hooked and pulled down.

なお、アーチ状の隆起部１４が設けられている感知器用防塵カバー１００の場合も、隆起部１４を掴んだり、隆起部１４に棒状部材の先端側に設けたフック部を引っかけたりして、感知器１から感知器用防塵カバー１００を取り外すようにしてもよい。   In the case of the dust cover 100 for the sensor provided with the arch-shaped raised portion 14, the detection can be performed by grasping the raised portion 14 or hooking the hook portion provided on the distal end side of the rod-like member to the raised portion 14. The dust cover 100 for sensors may be removed from the device 1.

以上のように、本実施形態の感知器用防塵カバー１００は、感知器１から容易に取り外すことができる。   As described above, the dust cover 100 for the sensor according to the present embodiment can be easily detached from the sensor 1.

なお、以上の実施の形態において、感知器用防塵カバー１００は天井に設置された感知器１を覆うカバーであるとしたが、本発明はこれに限定されるものではなく、側壁に設置された感知器１を覆うカバーであってもよい。
また、感知器用防塵カバー１００で保護する感知器１は、煙感知用であることに限らず、熱感知用の感知器であっても、炎感知用の感知器であってもよい。 In the above embodiment, the dust cover 100 for the sensor is a cover that covers the sensor 1 installed on the ceiling. However, the present invention is not limited to this and the sensor installed on the side wall is not limited thereto. The cover which covers the container 1 may be sufficient.
The sensor 1 protected by the sensor dust cover 100 is not limited to smoke detection but may be a heat detection sensor or a flame detection sensor.

また、感知器１の開口３ａに凸部１３を係合させて感知器用防塵カバー１００を感知器１に取り付けることに限らず、感知器１の表面に設けられている溝や窪みなどの凹部に凸部１３を係合させて、感知器１に感知器用防塵カバー１００を取り付けるようにしてもよい。   In addition, the convex portion 13 is engaged with the opening 3 a of the sensor 1 and the dust cover 100 for the sensor is not attached to the sensor 1, but in a concave portion such as a groove or a recess provided on the surface of the sensor 1. You may make it attach the convex part 13 and attach the dustproof cover 100 for sensors to the sensor 1. FIG.

また、その他、具体的な細部構造等についても適宜に変更可能であることは勿論である。   In addition, it is needless to say that other specific detailed structures can be appropriately changed.

１ 感知器
２ 本体部
３ ヘッド部
３ａ 開口（凹部）
１０ 椀状部
１１ 切り込み部
１２ 帯状部
１３ 凸部
１４ 隆起部
１５ 把手部
２０ 鍔状部
３０ 補強構造部
１００ 感知器用防塵カバー DESCRIPTION OF SYMBOLS 1 Sensor 2 Main-body part 3 Head part 3a Opening (recessed part)
DESCRIPTION OF SYMBOLS 10 Hook-shaped part 11 Cut-in part 12 Band-shaped part 13 Convex part 14 Raised part 15 Handle part 20 Gutter-like part 30 Reinforcement structure part 100

Claims (4)

所定の設置面に凸設された感知器の外形に対応した形状を有し、前記感知器を覆い隠すように取り付けられる感知器用防塵カバーであって、
前記感知器の表面の凹部に係合して、当該感知器用防塵カバーを前記感知器に係着させる凸部と、
前記感知器の表面から離間するように隆起した隆起部と、を備え、
前記隆起部が前記感知器に向けて押し込まれて当該感知器用防塵カバーの一部が弾性変形することで、前記凹部から前記凸部が外れて係着解除されるように構成されていることを特徴とする感知器用防塵カバー。 A dust-proof cover for a sensor having a shape corresponding to the outer shape of a sensor projecting on a predetermined installation surface and attached to cover the sensor,
A convex part that engages with a concave part on the surface of the sensor and attaches the dust cover for the sensor to the sensor;
A raised portion raised so as to be separated from the surface of the sensor,
The raised portion is pushed toward the sensor and a part of the dust-proof cover for the sensor is elastically deformed, so that the convex part is detached from the concave part and the engagement is released. Dust-proof cover for sensor. 当該感知器用防塵カバーの縁よりも内側には２本の切り込み部が略平行に形成され、その２本の切り込み部に挟まれている帯状部が設けられており、
前記帯状部の長手方向両側にそれぞれ前記凸部が設けられ、その一対の凸部の間に前記隆起部が設けられていることを特徴とする請求項１に記載の感知器用防塵カバー。 Inside the edge of the dust cover for the sensor, two cut portions are formed substantially in parallel, and a band-shaped portion sandwiched between the two cut portions is provided,
2. The dust cover for a sensor according to claim 1, wherein the convex portions are provided on both sides in the longitudinal direction of the belt-shaped portion, and the raised portions are provided between the pair of convex portions. 前記隆起部が前記感知器に向けて押し込まれて前記帯状部が弾性変形することに伴い、前記凹部から前記凸部が外れ、その弾性変形した帯状部が復元する作用で当該感知器用防塵カバーが前記感知器から浮き上がるように構成されていることを特徴とする請求項２に記載の感知器用防塵カバー。   As the raised portion is pushed toward the sensor and the belt-like portion is elastically deformed, the convex portion is removed from the concave portion, and the elastically deformed belt-like portion is restored, whereby the dustproof cover for the sensor is The dust cover for a sensor according to claim 2, wherein the dust cover is configured to float from the sensor. 前記隆起部が前記感知器に向けて押し込まれた際、前記帯状部が選択的に弾性変形するように、前記帯状部の両側の防塵カバーの立体形状を保持する補強構造部が設けられていることを特徴とする請求項２又は３に記載の感知器用防塵カバー。   Reinforcing structure portions that hold the three-dimensional shape of the dust-proof covers on both sides of the belt-like portion are provided so that the belt-like portion is selectively elastically deformed when the raised portion is pushed toward the sensor. The dustproof cover for a sensor according to claim 2 or 3,
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111508183A (en) * 2020-05-07 2020-08-07 青田昙正测量仪器有限公司 Fire detector detects protection device

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JPH09147259A (en) * 1995-11-22 1997-06-06 Matsushita Electric Works Ltd Sensor cover
JPH09147260A (en) * 1995-11-27 1997-06-06 Matsushita Electric Works Ltd Sensor and its protection cover removal jig
JP2016148983A (en) * 2015-02-12 2016-08-18 株式会社ミネサービス Protective cover of fire sensor

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JPS56175356U (en) * 1981-05-27 1981-12-24
JPS61246896A (en) * 1985-04-24 1986-11-04 日本フエンオ−ル株式会社 Protective cover loader/unloader for alarm
JPH09147259A (en) * 1995-11-22 1997-06-06 Matsushita Electric Works Ltd Sensor cover
JPH09147260A (en) * 1995-11-27 1997-06-06 Matsushita Electric Works Ltd Sensor and its protection cover removal jig
JP2016148983A (en) * 2015-02-12 2016-08-18 株式会社ミネサービス Protective cover of fire sensor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111508183A (en) * 2020-05-07 2020-08-07 青田昙正测量仪器有限公司 Fire detector detects protection device

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