JP2020067828A - Fire detector - Google Patents

Fire detector Download PDF

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JP2020067828A
JP2020067828A JP2018200276A JP2018200276A JP2020067828A JP 2020067828 A JP2020067828 A JP 2020067828A JP 2018200276 A JP2018200276 A JP 2018200276A JP 2018200276 A JP2018200276 A JP 2018200276A JP 2020067828 A JP2020067828 A JP 2020067828A
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fixing
detection
guide
incidence
suppressing means
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JP7265854B2 (en
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康治 藤原
Koji Fujiwara
康治 藤原
功 佐伯
Isao Saeki
功 佐伯
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Hochiki Corp
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Hochiki Corp
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Priority to JP2018200276A priority Critical patent/JP7265854B2/en
Priority to EP19825259.5A priority patent/EP3813033A4/en
Priority to PCT/JP2019/017008 priority patent/WO2020003712A1/en
Priority to CN201980043033.5A priority patent/CN112368752B/en
Publication of JP2020067828A publication Critical patent/JP2020067828A/en
Priority to US17/078,154 priority patent/US11614396B2/en
Priority to US18/170,279 priority patent/US20230228670A1/en
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Abstract

To provide a fire detector making it possible to upgrade the manufacturability of the fire detector.SOLUTION: A fire detector that detects a fire in a monitoring area includes a detection space where an object of detection is detected, and incidence inhibition means that inhibits disturbance light from entering the detection space. The incidence inhibition means includes a detection unit cover 70 that shields a part of a perimeter of the detection space, a detection unit body 80 that shields the other part of the perimeter of the detection space, a first fixing part 111 and a second fixing part 112 for use in fixing the detection unit cover 70 and the detection unit body 80 respectively, and a first guide part 121 and second guide part 122 that guide the detection unit cover 70 to the first fixing part 111 or the second fixing part 112 when the detection unit cover 70 and the detection unit body 80 are fixed via the first fixing part 111 and the second fixing part 112.SELECTED DRAWING: Figure 5

Description

本発明は、火災検出装置に関する。   The present invention relates to a fire detection device.

従来、監視領域の火災を検出する煙感知器を対象として、煙感知器の内部に煙を流入させて、当該煙による散乱光を検出するための技術が提案されている。この技術においては、例えば、筐体と、筐体の内部に設けられた検煙空間と、筐体の内部に設けられた検煙部であって、検煙空間に外乱光が入射しないように検煙空間を収容するための検煙部と、を備えた煙感知器が構成されている（例えば、特許文献１参照）。また、この検煙部は、筐体の内部に設けられたラビリンスであって、相互に間隔を隔てて検出空間の一部を囲繞する複数のラビリンス部材を有するラビリンスを、筐体の内部に設けられた検煙部本体であって、検出空間の他の一部を覆うための検煙部本体に対して嵌合することにより構成されている。   2. Description of the Related Art Conventionally, a technology has been proposed for a smoke sensor that detects a fire in a monitoring area, in which the smoke is caused to flow into the smoke sensor and the scattered light due to the smoke is detected. In this technique, for example, a casing, a smoke detection space provided inside the casing, and a smoke detection unit provided inside the casing are arranged so that ambient light does not enter the smoke detection space. A smoke detector including a smoke detecting section for accommodating the smoke detecting space is configured (see, for example, Patent Document 1). In addition, the smoke detection unit is a labyrinth provided inside the housing, and a labyrinth having a plurality of labyrinth members that surround a part of the detection space with a space provided therebetween is provided inside the housing. The smoke detection section main body is configured to be fitted to the smoke detection section main body for covering another part of the detection space.

特開２００６−２６７１２８号公報JP, 2006-267128, A

ところで、近年では、検煙部の組立作業の効率化を図りたいというニーズが高まっている。ここで、上記従来の煙感知器においては、上述したように、検煙部がラビリンスを検煙部本体に対して嵌合することにより構成されているものの、例えば、検煙部本体の嵌合部分のサイズが比較的小さい場合には、ラビリンスを検煙部本体に対して嵌合しづらくなることから、検煙部の組立作業の効率化を図ることが難しくなる可能性があった。したがって、火災検出装置の製造性の観点からは、改善の余地があった。   By the way, in recent years, there is a growing need to improve the efficiency of assembling the smoke detector. Here, in the above-mentioned conventional smoke detector, as described above, although the smoke detector is configured by fitting the labyrinth to the smoke detector main body, for example, the fitting of the smoke detector main body If the size of the portion is relatively small, it becomes difficult to fit the labyrinth to the smoke detection unit body, which may make it difficult to increase the efficiency of the smoke detection unit assembly work. Therefore, there is room for improvement in terms of manufacturability of the fire detection device.

本発明は上記問題に鑑みてなされたもので、火災検出装置の製造性を高めることが可能となる、火災検出装置を提供することを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a fire detection device that can improve the manufacturability of the fire detection device.

上述した課題を解決し、目的を達成するために、請求項１に記載の火災検出装置は、監視領域の火災を検出するための火災検出装置であって、検出対象の検出を行う検出空間と、前記検出空間に外乱光が入射することを抑制するための入射抑制手段と、を備え、前記入射抑制手段は、前記検出空間の外周の一部を覆う第１入射抑制手段と、前記検出空間の外周の他の一部を覆う第２入射抑制手段と、前記第１入射抑制手段と前記第２入射抑制手段とを固定するための固定手段と、前記固定手段を介して前記第１入射抑制手段と前記第２入射抑制手段とを固定する際に、前記第１入射抑制手段又は前記第２入射抑制手段を前記固定手段へ案内するためのガイド手段と、を備えた。   In order to solve the above problems and achieve the object, the fire detection device according to claim 1 is a fire detection device for detecting a fire in a monitoring area, and a detection space for detecting a detection target. An incident suppression unit for suppressing the incidence of ambient light on the detection space, wherein the incident suppression unit covers a part of the outer periphery of the detection space, and the detection space. Second incident suppressing means for covering another part of the outer circumference of the first incident suppressing means, fixing means for fixing the first incident suppressing means and the second incident suppressing means, and the first incident suppressing means via the fixing means. A guide means for guiding the first incidence suppressing means or the second incidence suppressing means to the fixing means when fixing the means and the second incident suppressing means.

請求項２に記載の火災検出装置は、請求項１に記載の火災検出装置において、前記ガイド手段を、長尺な中空状又は中実状に形成し、前記第１入射抑制手段又は前記第２入射抑制手段を前記ガイド手段及び前記固定手段を介して挿通させて前記固定手段に対して着脱自在に固定可能となるように、前記第１入射抑制手段、前記第２入射抑制手段、前記固定手段、及び前記ガイド手段を構成した。   The fire detection device according to claim 2 is the fire detection device according to claim 1, wherein the guide means is formed into a long hollow shape or a solid shape, and the first incidence suppressing means or the second incidence means. The first incidence suppressing means, the second incidence suppressing means, the fixing means, so that the suppressing means can be detachably fixed to the fixing means by inserting the suppressing means through the guide means and the fixing means. And the guide means.

請求項３に記載の火災検出装置は、請求項２に記載の火災検出装置において、前記ガイド手段の長手方向の長さを、前記第１入射抑制手段又は前記第２入射抑制手段を前記ガイド手段に挿通する際又は当該挿通後に前記固定手段へ案内する際に、当該第１入射抑制手段又は当該第２入射抑制手段が前記検出空間又はその近傍に設けられる部品と接触することを抑制可能な長さとした。   The fire detection device according to claim 3 is the fire detection device according to claim 2, wherein the length in the longitudinal direction of the guide means is set to the first incidence suppressing means or the second incidence suppressing means by the guide means. When it is inserted into or after it is guided to the fixing means, it is possible to prevent the first incidence suppressing means or the second incidence suppressing means from coming into contact with the detection space or a component provided in the vicinity thereof. Satoshi

請求項４に記載の火災検出装置は、請求項１から３のいずれか一項に記載の火災検出装置において、一対の前記固定手段を、相互に間隔を隔てて設けた。   A fire detection device according to a fourth aspect is the fire detection device according to any one of the first to third aspects, in which the pair of fixing means are provided at intervals.

請求項５に記載の火災検出装置は、請求項４に記載の火災検出装置において、前記一対の固定手段の一方から前記一対の固定手段の他方に至る直線上に前記検出空間の略中心部が位置するように、前記一対の固定手段を配置した。   The fire detection device according to claim 5 is the fire detection device according to claim 4, wherein a substantially central portion of the detection space is located on a straight line from one of the pair of fixing means to the other of the pair of fixing means. The pair of fixing means were arranged so as to be positioned.

請求項６に記載の火災検出装置は、請求項１から５のいずれか一項に記載の火災検出装置において、前記検出空間内において検出光の照射及び受光を行うことで前記検出対象を検出するための検出手段を備え、前記検出手段の感度調整を行う際に用いる器具を前記固定手段に対して固定可能となるように、前記固定手段を構成した。   The fire detection device according to claim 6 is the fire detection device according to any one of claims 1 to 5, wherein the detection target is detected by irradiating and receiving detection light in the detection space. The fixing means is configured so that the instrument used when adjusting the sensitivity of the detecting means can be fixed to the fixing means.

請求項１に記載の火災検出装置によれば、第１入射抑制手段と第２入射抑制手段とを固定するための固定手段と、固定手段を介して第１入射抑制手段と第２入射抑制手段とを固定する際に、第１入射抑制手段又は第２入射抑制手段を固定手段へ案内するためのガイド手段と、を備えたので、固定手段を介して第１入射抑制手段と第２入射抑制手段とを固定する際に、ガイド手段によって第１入射抑制手段又は第２入射抑制手段を固定手段へ案内でき、ガイド手段を設けない場合に比べて、第１入射抑制手段と第２入射抑制手段とを正確且つ迅速に固定することができる。よって、入射抑制手段の組立作業の効率化を図ることができ、火災検出装置の製造性を向上させることが可能となる。特に、第１入射抑制手段又は第２入射抑制手段を基板等から突出する部品（例えば、サーミスタ等）に接触させずに固定しやすくなるため、入射抑制手段の組立作業の効率化を図りやすくなる。   According to the fire detection device of claim 1, the fixing means for fixing the first incident suppressing means and the second incident suppressing means, and the first incident suppressing means and the second incident suppressing means via the fixing means. And a guide means for guiding the first incident suppressing means or the second incident suppressing means to the fixing means when fixing the first incident suppressing means and the second incident suppressing means through the fixing means. When fixing the means, the guide means can guide the first incidence suppressing means or the second incidence suppressing means to the fixing means, and the first incidence suppressing means and the second incidence suppressing means can be compared with the case where the guide means is not provided. And can be fixed accurately and quickly. Therefore, the efficiency of the assembling work of the incidence suppressing means can be improved, and the manufacturability of the fire detecting device can be improved. In particular, since it becomes easy to fix the first incidence suppressing means or the second incidence suppressing means without contacting a component (for example, a thermistor) protruding from the substrate or the like, it is easy to improve the efficiency of the assembly work of the incidence suppressing means. .

請求項２に記載の火災検出装置によれば、第１入射抑制手段又は第２入射抑制手段をガイド手段及び固定手段を介して挿通させて固定手段に対して着脱自在に固定可能となるように、第１入射抑制手段、第２入射抑制手段、固定手段、及びガイド手段を構成したので、第１入射抑制手段又は第２入射抑制手段と固定手段との接触面積を増やすことができ、第１入射抑制手段又は第２入射抑制手段を固定手段に対して強固に固定できる。また、第１入射抑制手段又は第２入射抑制手段を固定手段に対して容易に着脱でき、メンテナンス作業等を容易に行うことができる。   According to the fire detecting device of the second aspect, the first incidence suppressing means or the second incidence suppressing means is inserted through the guide means and the fixing means so that it can be detachably fixed to the fixing means. Since the first incidence suppressing means, the second incidence suppressing means, the fixing means, and the guide means are configured, it is possible to increase the contact area between the first incident suppressing means or the second incidence suppressing means and the fixing means. The incident suppressing means or the second incident suppressing means can be firmly fixed to the fixing means. Further, the first incidence suppressing means or the second incidence suppressing means can be easily attached to and detached from the fixing means, and maintenance work or the like can be easily performed.

請求項３に記載の火災検出装置によれば、ガイド手段の長手方向の長さを、第１入射抑制手段又は第２入射抑制手段をガイド手段に挿通する際又は当該挿通後に固定手段へ案内する際に、当該第１入射抑制手段又は当該第２入射抑制手段が検出空間又はその近傍に設けられる部品と接触することを抑制可能な長さとしたので、上記挿通する際又は上記案内する際に第１入射抑制手段又は第２入射抑制手段が上記部品と接触することを抑制できる。よって、例えば、第１入射抑制手段及び第２入射抑制手段の組立作業時に、上記部品が破損又は脱落することや、上記部品が取り付けられている部材（例えば基板等）に変形又は負荷が生じることを回避しやすくなる。   According to the fire detecting device of the third aspect, the length of the guide means in the longitudinal direction is guided to the fixing means when the first incidence suppressing means or the second incidence suppressing means is inserted into the guide means or after the insertion. At this time, since the first incident suppressing means or the second incident suppressing means has a length capable of suppressing contact with a component provided in the detection space or in the vicinity thereof, it is possible to reduce It is possible to prevent the first incidence suppressing means or the second incidence suppressing means from coming into contact with the component. Therefore, for example, during the assembly work of the first incidence suppressing means and the second incidence suppressing means, the parts are damaged or fallen off, or a member (for example, a board or the like) to which the parts are attached is deformed or loaded. Will be easier to avoid.

請求項４に記載の火災検出装置によれば、一対の固定手段を相互に間隔を隔てて設けたので、１つの固定手段のみを設けた場合に比べて、第１入射抑制手段と第２入射抑制手段とを安定して固定できると共に、第１入射抑制手段と第２入射抑制手段との位置合わせを容易に行うことができ、第１入射抑制手段と第２入射抑制手段とを効果的に固定できる。   According to the fire detection device of claim 4, since the pair of fixing means are provided at a distance from each other, the first incidence suppressing means and the second incidence means are provided as compared with the case where only one fixing means is provided. The suppressing means can be stably fixed, and the first incident suppressing means and the second incident suppressing means can be easily aligned with each other, and the first incident suppressing means and the second incident suppressing means can be effectively arranged. Can be fixed.

請求項５に記載の火災検出装置によれば、一対の固定手段の一方から一対の固定手段の他方に至る直線上に検出空間の略中心部が位置するように、一対の固定手段を配置したので、第１入射抑制手段及び第２入射抑制手段の芯出しを容易に行うことができ、第１入射抑制手段と第２入射抑制手段とを正確に固定しやすくなる。   According to the fire detection device of claim 5, the pair of fixing means is arranged such that the substantially central portion of the detection space is located on a straight line from one of the pair of fixing means to the other of the pair of fixing means. Therefore, the first incidence suppressing means and the second incidence suppressing means can be easily centered, and the first incidence suppressing means and the second incidence suppressing means can be easily fixed accurately.

請求項６に記載の火災検出装置によれば、検出手段の感度調整を行う際に用いる器具を固定手段に対して固定可能となるように、固定手段を構成したので、器具を正確且つ迅速に取り付けることができ、検出手段の感度調整作業の効率化を図ることが可能となる。また、器具の位置合わせ用の部材を第１入射抑制手段又は第２入射抑制手段に別途設ける必要がなくなるため、火災検出装置の製造コストを低減できる。   According to the fire detection device of claim 6, since the fixing means is configured so that the equipment used when adjusting the sensitivity of the detection means can be fixed to the fixing means, the equipment can be accurately and quickly provided. It can be attached, and the efficiency of the sensitivity adjustment work of the detection means can be improved. Further, it is not necessary to separately provide a member for aligning the device in the first incidence suppressing means or the second incidence suppressing means, so that the manufacturing cost of the fire detection device can be reduced.

実施の形態に係る火災検出装置の取付状況を示す側面図である。It is a side view which shows the attachment condition of the fire detection apparatus which concerns on embodiment. 取付ベースを取り外した状態の火災検出装置を示す底面図である。It is a bottom view which shows the fire detection apparatus in the state which removed the attachment base. 図２のＡ−Ａ矢視断面図である。FIG. 3 is a sectional view taken along the line AA of FIG. 2. 検出部カバーと検出部本体とを固定した状態を示す図であり、（ａ）底面図、（ｂ）側面図である。It is a figure which shows the state which fixed the detection part cover and the detection part main body, and is (a) bottom view and (b) side view. 検出部カバーと検出部本体との固定状況を示す斜視図であり、（ａ）は検出部カバーと検出部本体とを固定する前の状態を示す図であり、（ｂ）は第１ガイド部及び第２ガイド部を検出部本体に固定した状態を示す図であり、（ｃ）は検出部カバーと検出部本体とを固定した状態を示す図である。It is a perspective view which shows the fixed state of a detection part cover and a detection part main body, (a) is a figure which shows the state before fixing a detection part cover and a detection part main body, (b) is a 1st guide part. It is a figure which shows the state which fixed the 2nd guide part to the detection part main body, and (c) is a figure which shows the state which fixed the detection part cover and the detection part main body. 感度調整器具と検出部本体とを固定した状態を示す図であり、（ａ）底面図、（ｂ）側面図である。It is a figure which shows the state which fixed the sensitivity adjustment instrument and the detection part main body, and is (a) bottom view and (b) side view.

以下に、本発明に係る火災検出装置の実施の形態を図面に基づいて詳細に説明する。まず、〔Ｉ〕実施の形態の基本的概念を説明した後、〔ＩＩ〕実施の形態の具体的内容について説明し、最後に、〔ＩＩＩ〕実施の形態に対する変形例について説明する。ただし、実施の形態によって本発明が限定されるものではない。   Hereinafter, an embodiment of a fire detection device according to the present invention will be described in detail with reference to the drawings. First, the basic concept of the [I] embodiment will be described, then the specific contents of the [II] embodiment will be described, and finally, a modified example of the [III] embodiment will be described. However, the present invention is not limited to the embodiments.

〔Ｉ〕実施の形態の基本的概念
まず、実施の形態の基本的概念について説明する。実施の形態は、概略的に、監視領域の火災を検出するための火災検出装置に関するものである。 [I] Basic Concept of Embodiment First, the basic concept of the embodiment will be described. The embodiments generally relate to a fire detection device for detecting a fire in a surveillance area.

ここで、「火災検出装置」は、実施の形態では、複数の検出対象の検出結果に基づいて監視領域の火災を検出して報知する装置であり、例えば、光学的な火災感知器や火災警報器等を含む概念である。また、「監視領域」とは、監視の対象となる領域であって、例えば、建物の内部の領域、建物の外部の領域等を含む概念である。また、「建物」とは、その具体的な構造や種類は任意であるが、例えば、戸建て住宅、アパートやマンションの如き集合住宅、オフィスビル、イベント施設、商業施設、及び公共施設等を含む概念である。また、「報知する」とは、例えば、所定情報を外部装置に向けて出力すること、所定情報を出力手段（表示手段又は音声出力手段）を介して表示又は音声出力すること等を含む概念である。以下、実施の形態では、「火災検出装置」が、「光学的な火災感知器」であり、「監視領域」が「オフィスビルの内部の領域」である場合について説明する。   Here, in the embodiment, the “fire detection device” is a device that detects and notifies a fire in the monitoring area based on the detection results of a plurality of detection targets, and is, for example, an optical fire detector or a fire alarm. It is a concept that includes vessels and the like. Further, the “monitoring area” is an area to be monitored, and is a concept including an area inside a building and an area outside the building. The “building” may have any specific structure or type, but is a concept including, for example, a detached house, a collective housing such as an apartment or an apartment, an office building, an event facility, a commercial facility, and a public facility. Is. Further, “notifying” is a concept including, for example, outputting predetermined information to an external device, displaying or outputting the predetermined information via an output unit (display unit or voice output unit), and the like. is there. Hereinafter, in the embodiment, the case where the “fire detection device” is an “optical fire detector” and the “monitoring area” is an “area inside the office building” will be described.

〔ＩＩ〕実施の形態の具体的内容
次に、実施の形態の具体的内容について説明する。 [II] Specific Content of Embodiment Next, specific content of the embodiment will be described.

（構成）
まず、実施の形態に係る火災検出装置の構成について説明する。図１は、実施の形態に係る火災検出装置の取付状況を示す側面図である。図２は、後述の取付ベースを取り外した状態の火災検出装置を示す底面図である。図３は、図２のＡ−Ａ矢視断面図である。以下の説明では、図１のＸ方向を火災検出装置の左右方向（−Ｘ方向を火災検出装置の左方向、＋Ｘ方向を火災検出装置の右方向）、図２のＹ方向を火災検出装置の前後方向（＋Ｙ方向を火災検出装置の前方向、−Ｙ方向を火災検出装置の後方向）、図１のＺ方向を火災検出装置の上下方向（＋Ｚ方向を火災検出装置の上方向、−Ｚ方向を火災検出装置の下方向）と称する。 (Constitution)
First, the configuration of the fire detection device according to the embodiment will be described. FIG. 1 is a side view showing a mounting state of a fire detection device according to an embodiment. FIG. 2 is a bottom view showing the fire detection device with a mounting base described later removed. 3 is a sectional view taken along the line AA of FIG. In the following description, the X direction in FIG. 1 is the left-right direction of the fire detection device (-X direction is the left direction of the fire detection device, + X direction is the right direction of the fire detection device), and the Y direction of FIG. 2 is the fire detection device. Front-back direction (+ Y direction is the forward direction of the fire detection device, -Y direction is the backward direction of the fire detection device), Z direction of FIG. 1 is the up and down direction of the fire detection device (+ Z direction is the upward direction of the fire detection device, -Z direction). The direction is called the downward direction of the fire detection device).

火災検出装置１は、気体に含まれている検出対象（例えば、煙等）を検出して報知する装置である。この火災検出装置１は、建物の屋内において建物の天井部の下面にある設置面２に設置されており、図１から図３に示すように、取付ベース１０、外カバー２０、内カバー３０、流入空間４０、防虫網５０、検出空間６０、検出部カバー７０、検出部本体８０、端子盤９０、及び基板１００を備えている。   The fire detection device 1 is a device that detects and notifies a detection target (for example, smoke) contained in gas. This fire detection device 1 is installed indoors in a building on an installation surface 2 on the lower surface of the ceiling of the building, and as shown in FIGS. 1 to 3, a mounting base 10, an outer cover 20, an inner cover 30, The inflow space 40, the insect net 50, the detection space 60, the detection unit cover 70, the detection unit main body 80, the terminal board 90, and the substrate 100 are provided.

（構成−取付ベース）
図１に戻り、取付ベース１０は、設置面２に対して外カバー２０を取り付けるための取付手段である。この取付ベース１０は、例えば公知の火災検出装置用の取付ベース（一例として、樹脂製である略板状の取付ベース）等を用いて構成されており、図１に示すように、設置面２に対して固定具等によって固定されている。 (Structure-Mounting base)
Returning to FIG. 1, the mounting base 10 is a mounting means for mounting the outer cover 20 on the installation surface 2. The mounting base 10 is configured by using, for example, a known mounting base for a fire detection device (as an example, a substantially plate-shaped mounting base made of resin), and the like, as shown in FIG. It is fixed by a fixing tool or the like.

（構成−外カバー）
外カバー２０は、内カバー３０、流入空間４０、防虫網５０、検出空間６０、検出部カバー７０、検出部本体８０、端子盤９０、及び基板１００を覆うカバーである。この外カバー２０は、例えば遮光性を有する樹脂材にて形成されており、図１から図３に示すように、外カバー本体２１、天面部２２、第１リブ部２３、及び第２リブ部２４を備えている。 (Structure-Outer cover)
The outer cover 20 is a cover that covers the inner cover 30, the inflow space 40, the insect screen 50, the detection space 60, the detection unit cover 70, the detection unit main body 80, the terminal board 90, and the substrate 100. The outer cover 20 is formed of, for example, a light-shielding resin material, and as shown in FIGS. 1 to 3, the outer cover body 21, the top surface portion 22, the first rib portion 23, and the second rib portion. 24 are provided.

このうち、外カバー本体２１は、外カバー２０の基本構造体である。この外カバー本体２１は、例えば上面及び下面が開放された略中空円柱状体にて形成されており、図１に示すように、外カバー本体２１の上端部が取付ベース１０の下面と当接するように配置され、取付ベース１０に対して嵌合構造（又は固定具）等によって固定されている。   Of these, the outer cover body 21 is a basic structure of the outer cover 20. The outer cover body 21 is formed of, for example, a substantially hollow columnar body having an open upper surface and a lower surface. As shown in FIG. 1, the upper end portion of the outer cover body 21 contacts the lower surface of the mounting base 10. And is fixed to the mounting base 10 by a fitting structure (or a fixture) or the like.

また、天面部２２は、流入空間４０を区画するための区画手段である。この天面部２２は、例えば略円形状の板状体にて形成されており、図１から図３に示すように、外カバー本体２１よりも下方において略水平に設けられている。また、図２に示すように、この天面部２２には、表示孔２２ａが設けられている。この表示孔２２ａは、後述する表示部から照射された光を図２のライトガイド１０４ａ及び表示孔２２ａを介して火災検出装置１の外部に導光するための貫通孔である。   The top surface portion 22 is a partitioning means for partitioning the inflow space 40. The top surface portion 22 is formed of, for example, a substantially circular plate-like body, and is provided substantially horizontally below the outer cover body 21 as shown in FIGS. 1 to 3. Further, as shown in FIG. 2, the top surface portion 22 is provided with a display hole 22a. The display hole 22a is a through hole for guiding the light emitted from the display unit described later to the outside of the fire detection device 1 via the light guide 104a and the display hole 22a of FIG.

また、第１リブ部２３は、流入空間４０を区画するための区画手段である。この第１リブ部２３は、略板状体にて形成され、外カバー本体２１と天面部２２との相互間において垂直に設けられており、具体的には、図１、図３に示すように、外カバー２０の中央付近から放射状に複数設けられ、外カバー本体２１及び天面部２２に対して接続されている。   Further, the first rib portion 23 is a partitioning means for partitioning the inflow space 40. The first rib portion 23 is formed of a substantially plate-shaped body and is provided vertically between the outer cover body 21 and the top surface portion 22, and specifically, as shown in FIGS. 1 and 3. In addition, a plurality of outer cover 20 are radially provided from the vicinity of the center and are connected to the outer cover body 21 and the top surface portion 22.

また、第２リブ部２４は、流入空間４０を区画するための区画手段である。この第２リブ部２４は、略板状体にて形成され、外カバー本体２１と天面部２２との相互間において垂直に設けられており、具体的には、図１、図３に示すように、隣接する第１リブ部２３の内側端部同士の相互間に設けられ、天面部２２に対して接続されている。   The second rib portion 24 is a partitioning means for partitioning the inflow space 40. The second rib portion 24 is formed in a substantially plate-like body and is provided vertically between the outer cover body 21 and the top surface portion 22, and specifically, as shown in FIGS. 1 and 3. Is provided between the inner end portions of the adjacent first rib portions 23, and is connected to the top surface portion 22.

（構成−流入空間）
図１に戻り、流入空間４０は、火災検出装置１の外部の気体が火災検出装置１の内部に流入させるための空間である。この流入空間４０は、外カバー２０の内部において複数形成されて、具体的には、図１、図３に示すように、外カバー２０の内部空間のうち、天面部２２、第１リブ部２３、第２リブ部２４、及び内カバー３０によって囲繞された空間が流入空間４０として形成されている。 (Structure-Inflow space)
Returning to FIG. 1, the inflow space 40 is a space for allowing the gas outside the fire detection device 1 to flow into the fire detection device 1. A plurality of the inflow spaces 40 are formed inside the outer cover 20, and specifically, as shown in FIGS. 1 and 3, in the inner space of the outer cover 20, the top surface portion 22 and the first rib portion 23 are included. A space surrounded by the second rib portion 24 and the inner cover 30 is formed as an inflow space 40.

（構成−内カバー）
内カバー３０は、検出空間６０、検出部カバー７０、検出部本体８０、及び基板１００を覆うカバーであると共に、流入空間４０を区画するための区画手段である。この内カバー３０は、例えば、上面が開放された略中空円柱状体であり、遮光性を有する樹脂材にて形成されており、図３に示すように、外カバー２０の内部において、内カバー３０の下側側部が流入空間４０を介して外カバー２０の天面部２２と対向するように設けられている。また、図３に示すように、内カバー３０の下側側部には、第１開口部３０ａが形成されている。第１開口部３０ａは、流入空間４０に流入された気体を検出空間６０に送るための開口部であり、図３に示すように、内カバー３０の下側側部のうち略中央部及びその近傍部分に設けられている。 (Structure-Inner cover)
The inner cover 30 is a cover that covers the detection space 60, the detection unit cover 70, the detection unit main body 80, and the substrate 100, and is also a partitioning unit that partitions the inflow space 40. The inner cover 30 is, for example, a substantially hollow columnar body having an open upper surface, and is made of a resin material having a light-shielding property. As shown in FIG. The lower side of 30 is provided so as to face the top surface 22 of the outer cover 20 via the inflow space 40. Further, as shown in FIG. 3, a first opening 30a is formed on the lower side of the inner cover 30. The first opening 30a is an opening for sending the gas flowing into the inflow space 40 to the detection space 60, and as shown in FIG. It is provided in the vicinity.

（構成−検出空間）
検出空間６０は、検出対象を検出するための空間であり、図３に示すように、内カバー３０の内部空間のうち、検出部カバー７０及び検出部本体８０によって囲繞される空間が検出空間６０として形成されている。 (Structure-Detection space)
The detection space 60 is a space for detecting an object to be detected. As shown in FIG. 3, among the inner spaces of the inner cover 30, the space surrounded by the detection unit cover 70 and the detection unit main body 80 is the detection space 60. Is formed as.

（構成−検出部カバー）
検出部カバー７０は、検出空間６０に外乱光が入射することを抑制すると共に、検出空間６０の一部を覆う第１入射抑制手段である。この検出部カバー７０は、上面が開放された略中空円柱状体であり、遮光性を有する樹脂材にて形成されている。また、この検出部カバー７０は、図３に示すように、内カバー３０の内部において、検出部カバー７０の下側側部が第１開口部３０ａ及び流入空間４０を介して外カバー２０の天面部２２と対向するように配置され、検出部本体８０に対して固定されている。また、図３に示すように、検出部カバー７０の下側側部には、第２開口部７０ａが形成されている。第２開口部７０ａは、第１開口部３０ａから送られた気体を検出空間６０に流入するための開口部であり、図３に示すように、検出部カバー７０の下側側部のうち第１開口部３０ａと対応する部分に設けられている。 (Structure-Detector cover)
The detection unit cover 70 is a first incidence suppressing unit that suppresses the disturbance light from entering the detection space 60 and covers a part of the detection space 60. The detection unit cover 70 is a substantially hollow columnar body having an open upper surface, and is made of a resin material having a light shielding property. In addition, as shown in FIG. 3, in the detection unit cover 70, the lower side portion of the detection unit cover 70 is located inside the inner cover 30 via the first opening 30 a and the inflow space 40. It is arranged so as to face the surface portion 22 and is fixed to the detection portion main body 80. Further, as shown in FIG. 3, a second opening 70 a is formed on the lower side of the detection unit cover 70. The second opening portion 70a is an opening portion for allowing the gas sent from the first opening portion 30a to flow into the detection space 60, and as shown in FIG. It is provided in a portion corresponding to one opening 30a.

（構成−防虫網）
防虫網５０は、火災検出装置１の外部にいる虫が検出空間６０に侵入するのを防止するための網である。この防虫網５０は、メッシュ状且つ円形状の網を用いて構成されており、図３に示すように検出部カバー７０に取り付けられている。 (Structure-insect net)
The insect screen 50 is a net for preventing insects outside the fire detection device 1 from entering the detection space 60. The insect repellent net 50 is configured by using a mesh-shaped and circular net, and is attached to the detection unit cover 70 as shown in FIG.

（構成−検出部本体）
検出部本体８０は、検出空間６０に外乱光が入射することを抑制すると共に、検出空間６０の他の一部を覆う第２入射抑制手段である。この検出部本体８０は、例えば遮光性を有する樹脂材にて形成された肉厚な板状体（一例として、略円形状の板状体）であり、検出部カバー７０よりも基板１００側（図３では、上方側）に設けられており、具体的には、図３に示すように、検出部カバー７０の上面を覆うように配置されており、基板１００に対して固定具等によって固定されている。なお、上述した「検出部カバー７０」及び「検出部本体８０」は、特許請求の範囲における「入射抑制手段」に対応する。 (Structure-Detector body)
The detection unit main body 80 is a second incidence suppression unit that suppresses disturbance light from entering the detection space 60 and covers another part of the detection space 60. The detection unit main body 80 is, for example, a thick plate-shaped body (for example, a substantially circular plate-shaped body) formed of a resin material having a light-shielding property, and is closer to the substrate 100 side than the detection unit cover 70 ( It is provided on the upper side in FIG. 3, and specifically, is arranged so as to cover the upper surface of the detection unit cover 70 as shown in FIG. 3, and is fixed to the substrate 100 by a fixture or the like. Has been done. The "detection unit cover 70" and the "detection unit main body 80" described above correspond to the "incident suppression unit" in the claims.

（構成−端子盤）
図３に戻り、端子盤９０は、内カバー３０、検出部カバー７０、検出部本体８０、及び基板１００を収容するための収容手段である。この端子盤９０は、下面が開放された略中空円柱状であり、例えば遮光性を有する樹脂材にて形成されている。また、この端子盤９０は、図３に示すように、内カバー３０、検出部カバー７０、検出部本体８０、及び基板１００を上方から覆うように設けられ、外カバー２０に対して嵌合構造等によって固定されていると共に、且つ取付ベース１０に対して取付部材９１に形成された第１取付孔（図示省略）を介して固定具等によって固定されている。 (Structure-Terminal board)
Returning to FIG. 3, the terminal board 90 is a housing means for housing the inner cover 30, the detection unit cover 70, the detection unit main body 80, and the substrate 100. The terminal board 90 has a substantially hollow cylindrical shape with an open lower surface, and is made of, for example, a light-shielding resin material. As shown in FIG. 3, the terminal board 90 is provided so as to cover the inner cover 30, the detection unit cover 70, the detection unit main body 80, and the substrate 100 from above, and has a fitting structure with respect to the outer cover 20. And the like, and is also fixed to the mounting base 10 by a fixing tool or the like via a first mounting hole (not shown) formed in the mounting member 91.

（構成−基板）
基板１００は、各種の電気回路（図示省略）が実装される実装手段である。この基板１００は、例えば公知の平板状の回路基板等を用いて構成されており、図３に示すように、端子盤９０の内部において、端子盤９０の上端部及び下端部と間隔を隔てて略水平に配置され、端子盤９０に対して端子盤９０に形成された取付孔（図示省略）及び取付部材９１に形成された第２取付孔（図示省略）を介して固定具によって固定されている。 (Structure-Board)
The board 100 is a mounting unit on which various electric circuits (not shown) are mounted. This board 100 is configured by using, for example, a well-known flat circuit board, and as shown in FIG. 3, inside the terminal board 90, it is spaced apart from the upper and lower ends of the terminal board 90. It is arranged substantially horizontally and is fixed to the terminal board 90 by a fixture through a mounting hole (not shown) formed in the terminal board 90 and a second mounting hole (not shown) formed in the mounting member 91. There is.

また、基板１００には、従来の火災検出装置１に用いられる公知の部品（電気部品）が実装されていることに加えて、第１発光部、第２発光部、受光部、表示部、通信部、電源部、制御部、及び記憶部が実装されている（いずれも図示省略）。   In addition to mounting known components (electrical components) used in the conventional fire detection device 1 on the board 100, the first light emitting unit, the second light emitting unit, the light receiving unit, the display unit, the communication A unit, a power supply unit, a control unit, and a storage unit are mounted (all are not shown).

（構成−基板−第１発光部、第２発光部、受光部）
このうち、第１発光部は、検出空間６０に検出光（以下、「第１検出光」と称する）を照射する発光手段であり、例えば公知の発光素子（一例として赤外ＬＥＤ等）を用いて構成されている。また、第２発光部は、第１検出光とは波長が異なる検出光（以下、「第２検出光」と称する）を検出空間６０に照射する発光手段であり、例えば公知の発光素子（一例として青色ＬＥＤ等）を用いて構成されている。また、受光部は、第１発光部から照射された第１検出光の煙による散乱光を受光し、当該受光した散乱光に応じた第１受光信号を出力すると共に、第２発光部から照射された第２検出光の煙に対する散乱光を受光し、当該受光した散乱光に応じた第２受光信号を出力する受光手段であり、例えば公知の受光素子（一例としてフォトダイオード等）を用いて構成されている。また、第１発光部、第２発光部、及び受光部の設置方法については任意であるが、実施の形態では、第１発光部又は第２発光部から照射された第１検出光又は第２検出光が後述する各種のプリズムレンズ部を介して直接的に受光部されることを回避できるように設置している。例えば、第１発光部の光軸（以下、「第１発光側光軸」と称する）と受光部の光軸（以下、「受光側光軸」と称する）との角度が１３５°程度となる位置に、第１発光部及び受光部を設置する。また、第２発光部の光軸（以下、「第２発光側光軸」と称する）と受光側光軸との角度が９０°程度となる位置に、第２発光部及び受光部を設置している。なお、上述した「第１発光部」、「第２発光部」、及び「受光部」を含むものは、特許請求の範囲における「検出手段」に対応する。 (Structure-Substrate-First light emitting portion, second light emitting portion, light receiving portion)
Of these, the first light emitting unit is a light emitting unit that irradiates the detection space 60 with detection light (hereinafter, referred to as “first detection light”), and uses, for example, a known light emitting element (such as an infrared LED). Is configured. The second light emitting unit is a light emitting unit that irradiates the detection space 60 with detection light having a wavelength different from that of the first detection light (hereinafter, referred to as “second detection light”). For example, a known light emitting element (example As a blue LED). The light receiving unit receives the scattered light of the smoke of the first detection light emitted from the first light emitting unit, outputs the first light receiving signal according to the received scattered light, and emits the light from the second light emitting unit. The light receiving means receives the scattered light of the smoke of the generated second detection light and outputs the second light receiving signal corresponding to the received scattered light. For example, a known light receiving element (photodiode or the like as an example) is used. It is configured. In addition, the method of installing the first light emitting unit, the second light emitting unit, and the light receiving unit is arbitrary, but in the embodiment, the first detection light or the second detection light emitted from the first light emitting unit or the second light emitting unit is used. The detection light is installed so as not to be directly received by the various prism lens portions described later. For example, the angle between the optical axis of the first light emitting portion (hereinafter referred to as “first light emitting side optical axis”) and the optical axis of the light receiving portion (hereinafter referred to as “light receiving side optical axis”) is approximately 135 °. The first light emitting unit and the light receiving unit are installed at the positions. In addition, the second light emitting unit and the light receiving unit are installed at positions where the angle between the optical axis of the second light emitting unit (hereinafter, referred to as “second light emitting side optical axis”) and the light receiving side optical axis is about 90 °. ing. In addition, what includes the above-mentioned "first light emitting unit", "second light emitting unit", and "light receiving unit" corresponds to "detecting means" in the claims.

（構成−基板−表示部、通信部、電源部）
また、表示部は、火災検出装置１の外部に向けて光（以下、「表示光」と称する）を照射することにより所定情報（例えば、火災の検出の有無を示す情報）を表示するための表示手段であり、例えば公知の表示手段（ＬＥＤ等）を用いて構成されている。また、この表示部の投光方法については任意であるが、例えば、検出部カバー７０、検出部本体８０、及び内カバー３０の各々に設けられた挿通孔（図示省略）、並びに後述する外カバー２０の表示孔２２ａに挿通されたライトガイド１０４ａを介して表示部からの表示光を火災検出装置１の外部に向けて誘導することにより投光すること等が該当する。また、通信部は、外部装置（例えば、受信機等）との間で通信する通信手段である。また、電源部は、商用電源又は電池（図示省略）から供給された電力を、火災検出装置１の各部に供給する電源手段である。 (Structure-Substrate-Display unit, communication unit, power supply unit)
In addition, the display unit displays predetermined information (for example, information indicating whether or not a fire is detected) by irradiating light (hereinafter, referred to as “display light”) toward the outside of the fire detection device 1. It is a display unit, and is configured by using, for example, a known display unit (LED or the like). Further, the method of projecting the display portion is arbitrary, but, for example, insertion holes (not shown) provided in each of the detection unit cover 70, the detection unit main body 80, and the inner cover 30, and an outer cover described later. For example, the display light from the display unit is guided toward the outside of the fire detection device 1 through the light guide 104a that is inserted through the display hole 22a of 20 to project the light. The communication unit is a communication unit that communicates with an external device (for example, a receiver). The power supply unit is a power supply unit that supplies electric power supplied from a commercial power supply or a battery (not shown) to each unit of the fire detection device 1.

（構成−基板−制御部、記憶部）
また、制御部は、火災検出装置１を制御する制御手段である。この制御部は、具体的には、ＣＰＵ、当該ＣＰＵ上で解釈実行される各種のプログラム（ＯＳなどの基本制御プログラムや、ＯＳ上で起動され特定機能を実現するアプリケーションプログラムを含む）及びプログラムや各種のデータを格納するためのＲＡＭの如き内部メモリを備えて構成されるコンピュータである。また、記憶部は、火災検出装置１の動作に必要なプログラム及び各種のデータを記憶する記憶手段である。この記憶部は、書き換え可能な記録媒体を用いて構成され、例えばフラッシュメモリ等の不揮発性記録媒体を用いることができる。 (Structure-Board-Control unit, storage unit)
The control unit is a control unit that controls the fire detection device 1. Specifically, the control unit includes a CPU, various programs that are interpreted and executed on the CPU (including a basic control program such as an OS and an application program that is started on the OS and realizes a specific function), programs, and the like. It is a computer including an internal memory such as a RAM for storing various data. The storage unit is a storage unit that stores programs and various data necessary for the operation of the fire detection device 1. This storage unit is configured by using a rewritable recording medium, and for example, a nonvolatile recording medium such as a flash memory can be used.

（構成−固定構造）
次に、火災検出装置１の固定構造について説明する。この火災検出装置１は、検出部カバー７０と検出部本体８０とを固定するための固定構造を備えており、この固定構造の特徴については、実施の形態では以下に示す通りとなる。 (Structure-fixed structure)
Next, the fixing structure of the fire detection device 1 will be described. The fire detection device 1 includes a fixing structure for fixing the detection unit cover 70 and the detection unit main body 80, and the features of this fixing structure are as described below in the embodiment.

（構成−固定構造−第１の特徴）
最初に、固定構造の第１の特徴について説明する。図４は、検出部カバー７０と検出部本体８０とを固定した状態を示す図であり、（ａ）底面図、（ｂ）側面図である。図５は、検出部カバー７０と検出部本体８０との固定状況を示す斜視図であり、（ａ）は検出部カバー７０と検出部本体８０とを固定する前の状態を示す図であり、（ｂ）は後述する第１ガイド部１２１及び第２ガイド部１２２を検出部本体８０に固定した状態を示す図であり、（ｃ）は検出部カバー７０と検出部本体８０とを固定した状態を示す図である。固定構造の第１の特徴については、火災検出装置１が、第１固定部１１１、第２固定部１１２、第１ガイド部１２１、及び第２ガイド部１２２を備えている。 (Structure-Fixed structure-First feature)
First, the first feature of the fixing structure will be described. FIG. 4 is a view showing a state in which the detection unit cover 70 and the detection unit main body 80 are fixed, and is (a) a bottom view and (b) a side view. FIG. 5 is a perspective view showing a fixing state of the detecting unit cover 70 and the detecting unit main body 80, and FIG. 5A is a diagram showing a state before fixing the detecting unit cover 70 and the detecting unit main body 80. (B) is a diagram showing a state in which a first guide part 121 and a second guide part 122, which will be described later, are fixed to the detection part body 80, and (c) is a state in which the detection part cover 70 and the detection part body 80 are fixed. FIG. Regarding the first feature of the fixing structure, the fire detection device 1 includes a first fixing portion 111, a second fixing portion 112, a first guide portion 121, and a second guide portion 122.

（構成−固定構造−第１の特徴−第１固定部、第２固定部）
第１固定部１１１及び第２固定部１１２は、検出部カバー７０と検出部本体８０とを固定するための固定手段である。これら第１固定部１１１及び第２固定部１１２は、略長尺状体（具体的には、中空の略円柱状体）にて形成されており、検出部本体８０に設けられており、具体的には、図４、図５に示すように、相互に間隔を隔てて設けられている。 (Structure-Fixing structure-First feature-First fixing part, Second fixing part)
The first fixing portion 111 and the second fixing portion 112 are fixing means for fixing the detecting portion cover 70 and the detecting portion main body 80. The first fixing portion 111 and the second fixing portion 112 are formed in a substantially elongated body (specifically, a hollow substantially cylindrical body), and are provided in the detection portion main body 80. Specifically, as shown in FIGS. 4 and 5, they are provided so as to be spaced from each other.

また、第１固定部１１１及び第２固定部１１２の設置方法については任意であるが、実施の形態では、第１固定部１１１又は第２固定部１１２の一方から第１固定部１１１又は第２固定部１１２の他方に至る直線Ｌ上に検出空間６０の略中心部が位置するように設置（配置）している。具体的には、図４、図５に示すように、第１固定部１１１を検出部本体８０の前端部に配置し、且つ第２固定部１１２を検出部本体８０の後端部に配置していると共に、第１固定部１１１から第２固定部１１２に至る直線Ｌが前後方向に略沿うように第１固定部１１１及び第２固定部１１２を配置している。これにより、検出部カバー７０及び検出部本体８０の芯出し（具体的には、水平方向の芯出し）を容易に行うことができ、検出部カバー７０と検出部本体８０とを正確に固定しやすくなる。   In addition, the method of installing the first fixing portion 111 and the second fixing portion 112 is arbitrary, but in the embodiment, one of the first fixing portion 111 and the second fixing portion 112 is changed to the first fixing portion 111 or the second fixing portion 112. It is installed (arranged) such that the substantially central portion of the detection space 60 is located on the straight line L reaching the other side of the fixed portion 112. Specifically, as shown in FIGS. 4 and 5, the first fixing portion 111 is arranged at the front end portion of the detecting portion main body 80, and the second fixing portion 112 is arranged at the rear end portion of the detecting portion main body 80. In addition, the first fixing portion 111 and the second fixing portion 112 are arranged so that the straight line L from the first fixing portion 111 to the second fixing portion 112 is substantially along the front-rear direction. Accordingly, the detection unit cover 70 and the detection unit main body 80 can be easily centered (specifically, in the horizontal direction), and the detection unit cover 70 and the detection unit main body 80 are accurately fixed. It will be easier.

また、第１固定部１１１及び第２固定部１１２の形成方法については任意であるが、実施の形態では、遮光性を有する樹脂材を射出成形することにより、第１固定部１１１及び第２固定部１１２と検出部本体８０とを一体に形成している。これにより、火災検出装置１の部品数を低減でき、火災検出装置１の製造コストを低減できる。ただし、これに限らず、例えば、第１固定部１１１及び第２固定部１１２と検出部本体８０とを別体に形成してもよい。   Further, the method for forming the first fixing portion 111 and the second fixing portion 112 is arbitrary, but in the embodiment, the first fixing portion 111 and the second fixing portion 111 are formed by injection molding a resin material having a light shielding property. The part 112 and the detection part main body 80 are integrally formed. Thereby, the number of parts of the fire detection device 1 can be reduced, and the manufacturing cost of the fire detection device 1 can be reduced. However, not limited to this, for example, the first fixing portion 111, the second fixing portion 112, and the detection unit main body 80 may be formed separately.

（構成−固定構造−第１の特徴−第１ガイド部、第２ガイド部）
図４に戻り、第１ガイド部１２１は、第１固定部１１１を介して検出部カバー７０と検出部本体８０とを固定する際に、検出部カバー７０又は検出部本体８０を第１固定部１１１へ案内するためのガイド手段である。また、第２ガイド部１２２は、第２固定部１１２を介して検出部カバー７０と検出部本体８０とを固定する際に、検出部カバー７０又は検出部本体８０を第２固定部１１２へ案内するためのガイド手段である。これら第１ガイド部１２１及び第２ガイド部１２２は、例えば樹脂製の長尺な中空状体（具体的には、中空の略円柱状体）にて形成されており、検出部カバー７０と検出部本体８０との相互間においてそれぞれ設けられている。具体的には、図４、図５に示すように、第１ガイド部１２１は、当該第１ガイド部１２１の長手方向が上下方向に沿うように配置され、且つ当該第１ガイド部１２１の上端部が第１固定部１１１に形成された図５（ａ）の第１嵌込孔１１１ａ（貫通孔又は非貫通孔）に嵌め込まれるように配置されている。また、第２ガイド部１２２は、当該第２ガイド部１２２の長手方向が上下方向に沿うように配置され、且つ当該第２ガイド部１２２の上端部が第２固定部１１２に形成された図５（ａ）の第２嵌込孔１１２ａ（貫通孔又は非貫通孔）に嵌め込まれるように配置されている。なお、実施の形態では、第１ガイド部１２１及び第２ガイド部１２２は、検出部本体８０に常設されるものとして説明する。 (Structure-Fixed structure-First feature-First guide part, Second guide part)
Returning to FIG. 4, the first guide part 121 fixes the detection part cover 70 or the detection part body 80 to the first fixing part when fixing the detection part cover 70 and the detection part body 80 via the first fixing part 111. It is a guide means for guiding to 111. Further, the second guide part 122 guides the detection part cover 70 or the detection part body 80 to the second fixing part 112 when fixing the detection part cover 70 and the detection part body 80 via the second fixing part 112. It is a guide means for doing. The first guide portion 121 and the second guide portion 122 are formed of, for example, a resin-made long hollow body (specifically, a hollow and substantially cylindrical body), and the detection portion cover 70 and the detection portion cover 70 are provided. It is provided between the main body 80 and the main body 80. Specifically, as shown in FIGS. 4 and 5, the first guide portion 121 is arranged such that the longitudinal direction of the first guide portion 121 is along the up-down direction and the upper end of the first guide portion 121. The portion is arranged so as to be fitted in the first fitting hole 111a (through hole or non-through hole) formed in the first fixing portion 111 in FIG. 5 (a). In addition, the second guide portion 122 is arranged such that the longitudinal direction of the second guide portion 122 is along the up-down direction, and the upper end portion of the second guide portion 122 is formed on the second fixing portion 112. It is arranged so as to be fitted into the second fitting hole 112a (through hole or non-through hole) of (a). In addition, in the embodiment, the first guide portion 121 and the second guide portion 122 will be described as being permanently provided in the detection unit main body 80.

また、第１ガイド部１２１及び第２ガイド部１２２の形成方法については任意であるが、実施の形態では、第１固定部１１１（又はび第２固定部１１２）とは別体に形成している。これにより、第１ガイド部１２１及び第２ガイド部１２２の取り付け及び取り外しを行うことができ、状況に応じた第１ガイド部１２１及び第２ガイド部１２２の使用が可能となる。   The method for forming the first guide portion 121 and the second guide portion 122 is arbitrary, but in the embodiment, it is formed separately from the first fixing portion 111 (or the second fixing portion 112). There is. Accordingly, the first guide portion 121 and the second guide portion 122 can be attached and detached, and the first guide portion 121 and the second guide portion 122 can be used depending on the situation.

（構成−固定構造−第１の特徴−その他の構成）
図４に戻り、また、検出部カバー７０、検出部本体８０、第１固定部１１１、第２固定部１１２、第１ガイド部１２１、及び第２ガイド部１２２の具体的な構成については任意であるが、実施の形態では、検出部カバー７０又は検出部本体８０を第１ガイド部１２１又は第２ガイド部１２２と第１固定部１１１又は第２固定部１１２とを介して挿通させて第１固定部１１１及び第２固定部１１２に対して着脱自在に固定可能となるように構成されている。 (Structure-Fixed structure-First feature-Other structure)
Returning to FIG. 4, the specific configurations of the detection unit cover 70, the detection unit main body 80, the first fixing unit 111, the second fixing unit 112, the first guide unit 121, and the second guide unit 122 are arbitrary. However, in the embodiment, the detection unit cover 70 or the detection unit main body 80 is inserted through the first guide unit 121 or the second guide unit 122 and the first fixing unit 111 or the second fixing unit 112, and the first unit is inserted. It is configured such that it can be detachably fixed to the fixed portion 111 and the second fixed portion 112.

具体的には、上述したように、検出部本体８０には、第１固定部１１１及び第２固定部１１２が設けられている。また、図４、図５に示すように、検出部カバー７０には、第１挿通孔１３１及び第２挿通孔１３２が設けられている。このうち、第１挿通孔１３１は、第１固定部１１１及び第１ガイド部１２１を挿通可能な貫通孔であり、検出部カバー７０の第１固定部１１１と対向する部分に配置されている。また、第２挿通孔１３２は、第２固定部１１２及び第２ガイド部１２２を挿通可能な貫通孔であり、検出部カバー７０の第２固定部１１２と対向する部分に配置されている。また、第１固定部１１１の直径については、第１挿通孔１３１に第１固定部１１１を嵌合可能な大きさに設定しており、例えば、第１挿通孔１３１の直径と略同一に設定している。また、第２固定部１１２の直径については、第２挿通孔１３２に第２固定部１１２を嵌合可能な大きさに設定しており、例えば、第２挿通孔１３２の直径と略同一に設定している。   Specifically, as described above, the detection unit main body 80 is provided with the first fixing unit 111 and the second fixing unit 112. Further, as shown in FIGS. 4 and 5, the detection unit cover 70 is provided with a first insertion hole 131 and a second insertion hole 132. Of these, the first insertion hole 131 is a through hole through which the first fixing portion 111 and the first guide portion 121 can be inserted, and is arranged in a portion of the detection unit cover 70 facing the first fixing portion 111. Further, the second insertion hole 132 is a through hole through which the second fixing portion 112 and the second guide portion 122 can be inserted, and is arranged in a portion of the detection unit cover 70 facing the second fixing portion 112. Further, the diameter of the first fixing portion 111 is set to a size that allows the first fixing portion 111 to fit into the first insertion hole 131, and is set to be substantially the same as the diameter of the first insertion hole 131, for example. is doing. Further, the diameter of the second fixing portion 112 is set to a size that allows the second fixing portion 112 to fit into the second insertion hole 132, and is set to be substantially the same as the diameter of the second insertion hole 132, for example. is doing.

また、第１ガイド部１２１及び第２ガイド部１２２の各々の長手方向（上下方向）の長さについては、検出部カバー７０又は検出部本体８０を第１ガイド部１２１及び第２ガイド部１２２に挿通する際又は当該挿通後に第１固定部１１１及び第２固定部１１２へ案内する際に、当該検出部カバー７０又は当該検出部本体８０が検出空間又はその近傍に設けられる部品（例えば、基板１００に実装された電気部品等）と接触することを抑制可能な長さに設定してもよい。より具体的には、第１ガイド部１２１の長手方向の長さについては、上記部品の上下方向の長さよりも長く（又は略同一）設定すると共に、検出部本体８０に基板１００が取り付けられている状態において、第１ガイド部１２１の上端部（第１ガイド部１２１の案内が開始される端部）を上記部品の上端よりも上方（又は略同一の高さ）に位置させることが可能であり、且つ第１ガイド部１２１を内カバー３０に収容可能な長さに設定してもよい。一例として、内カバー３０の上下方向の長さよりも若干短く設定してもよい。また、第２ガイド部１２２の長手方向の長さについては、上記部品の上下方向の長さよりも長く（又は略同一）設定すると共に、検出部本体８０に基板１００が取り付けられている状態において、第２ガイド部１２２の上端部（第２ガイド部１２２の案内が開始される端部）を上記部品の上端よりも上方（又は略同一の高さ）に位置させることが可能であり、且つ第２ガイド部１２２を内カバー３０に収容可能な長さに設定してもよい。一例として、内カバー３０の上下方向の長さよりも若干短く設定してもよい。これにより、検出部カバー７０又は検出部本体８０を第１ガイド部１２１及び第２ガイド部１２２に挿通する際又は当該挿通後に第１固定部１１１及び第２固定部１１２へ案内する際に、当該検出部カバー７０又は当該検出部本体８０が上記部品と接触することを抑制できる。よって、例えば、検出部カバー７０及び検出部本体８０の組立作業時に、上記部品が破損又は脱落することや、上記部品が取り付けられている部材（例えば基板１００等）に変形又は負荷が生じることを回避しやすくなる。   Further, regarding the lengths of the first guide portion 121 and the second guide portion 122 in the longitudinal direction (vertical direction), the detection portion cover 70 or the detection portion main body 80 is set to the first guide portion 121 and the second guide portion 122. When inserting or when guiding the first fixing portion 111 and the second fixing portion 112 after the insertion, the detection unit cover 70 or the detection unit main body 80 is a component provided in or near the detection space (for example, the substrate 100). It may be set to a length that can suppress contact with an electric component mounted on the. More specifically, the length of the first guide portion 121 in the longitudinal direction is set longer (or substantially the same) than the length of the above component in the vertical direction, and the substrate 100 is attached to the detection portion main body 80. In this state, the upper end portion of the first guide portion 121 (the end portion where the guide of the first guide portion 121 is started) can be located above (or substantially the same height as) the upper end of the above component. The length may be set so that the first guide portion 121 can be accommodated in the inner cover 30. As an example, it may be set to be slightly shorter than the length of the inner cover 30 in the vertical direction. In addition, the length of the second guide portion 122 in the longitudinal direction is set to be longer (or substantially the same) than the length of the above component in the vertical direction, and the substrate 100 is attached to the detection unit main body 80. It is possible to position the upper end portion of the second guide portion 122 (the end portion where the guide of the second guide portion 122 is started) above (or at substantially the same height as) the upper end of the component, and The length of the second guide portion 122 may be set so that it can be accommodated in the inner cover 30. As an example, it may be set to be slightly shorter than the length of the inner cover 30 in the vertical direction. Thereby, when the detection unit cover 70 or the detection unit main body 80 is inserted into the first guide unit 121 and the second guide unit 122, or when the detection unit cover 70 or the detection unit main body 80 is guided to the first fixing unit 111 and the second fixing unit 112 after the insertion. It is possible to prevent the detection unit cover 70 or the detection unit main body 80 from coming into contact with the above components. Therefore, for example, during the assembling work of the detection unit cover 70 and the detection unit main body 80, it is possible that the components are damaged or fallen off, or the member (for example, the substrate 100 or the like) to which the components are attached is deformed or loaded. It is easy to avoid.

このような構成により、検出部カバー７０と第１固定部１１１及び第２固定部１１２との接触面積を増やすことができ、検出部カバー７０を第１固定部１１１及び第２固定部１１２に対して強固に固定できる。また、検出部カバー７０を第１固定部１１１及び第２固定部１１２に対して容易に着脱でき、メンテナンス作業等を容易に行うことができる。   With such a configuration, the contact area between the detection unit cover 70 and the first fixing unit 111 and the second fixing unit 112 can be increased, and the detection unit cover 70 can be attached to the first fixing unit 111 and the second fixing unit 112. Can be firmly fixed. Further, the detector cover 70 can be easily attached to and detached from the first fixing portion 111 and the second fixing portion 112, and maintenance work and the like can be easily performed.

以上のような第１の特徴により、第１固定部１１１及び第２固定部１１２を介して検出部カバー７０と検出部本体８０とを固定する際に、第１ガイド部１２１及び第２ガイド部１２２によって検出部カバー７０を第１固定部１１１及び第２固定部１１２へ案内でき、第１ガイド部１２１及び第２ガイド部１２２を設けない場合に比べて、検出部カバー７０と検出部本体８０とを正確且つ迅速に固定することができる。よって、検出部カバー７０及び検出部本体８０の組立作業の効率化を図ることができ、火災検出装置１の製造性を向上させることが可能となる。特に、検出部カバー７０を基板１００等から突出する部品（例えば、サーミスタ等）に接触させずに固定しやすくなるため、検出部カバー７０及び検出部本体８０の組立作業の効率化を図りやすくなる。また、第１固定部１１１及び第２固定部１１２を相互に間隔を隔てて設けているので、第１固定部１１１又は第２固定部１１２のいずれか一方のみ設けた場合に比べて、検出部カバー７０と検出部本体８０とを安定して固定できると共に、検出部カバー７０と検出部本体８０との位置合わせを容易に行うことができ、検出部カバー７０と検出部本体８０とを効果的に固定できる。   Due to the above-described first feature, when the detection unit cover 70 and the detection unit main body 80 are fixed to each other via the first fixing unit 111 and the second fixing unit 112, the first guide unit 121 and the second guide unit 121. The detection unit cover 70 can be guided to the first fixing unit 111 and the second fixing unit 112 by 122, and the detection unit cover 70 and the detection unit body 80 can be compared to the case where the first guide unit 121 and the second guide unit 122 are not provided. And can be fixed accurately and quickly. Therefore, the efficiency of the assembling work of the detection unit cover 70 and the detection unit main body 80 can be improved, and the manufacturability of the fire detection device 1 can be improved. In particular, the detection unit cover 70 can be easily fixed without coming into contact with a component (for example, a thermistor) protruding from the substrate 100 or the like, so that the efficiency of the assembly work of the detection unit cover 70 and the detection unit body 80 can be facilitated. . In addition, since the first fixing portion 111 and the second fixing portion 112 are provided at a distance from each other, as compared with the case where only one of the first fixing portion 111 and the second fixing portion 112 is provided, the detecting portion. The cover 70 and the detection section main body 80 can be stably fixed, and the detection section cover 70 and the detection section main body 80 can be easily aligned with each other, so that the detection section cover 70 and the detection section main body 80 are effectively formed. Can be fixed to.

（構成−固定構造−第２の特徴）
次に、固定構造の第２の特徴について説明する。図６は、後述する感度調整器具１５０と検出部本体８０とを固定した状態を示す図であり、（ａ）底面図、（ｂ）側面図である。なお、図５（ｂ）では、感度調整部１６０のうち検出部カバー７０に収容されている部分を点線で示す。固定構造の第２の特徴については、感度調整器具１５０を第１固定部１１１及び第２固定部１１２に対して固定可能となるように、第１固定部１１１及び第２固定部１１２は構成されている。 (Structure-Fixed structure-Second feature)
Next, the second feature of the fixing structure will be described. FIG. 6 is a diagram showing a state in which a sensitivity adjusting device 150 and a detection unit main body 80, which will be described later, are fixed, and is a (a) bottom view and a (b) side view. Note that, in FIG. 5B, a portion of the sensitivity adjustment unit 160 accommodated in the detection unit cover 70 is indicated by a dotted line. Regarding the second feature of the fixing structure, the first fixing part 111 and the second fixing part 112 are configured so that the sensitivity adjusting device 150 can be fixed to the first fixing part 111 and the second fixing part 112. ing.

ここで、「感度調整器具１５０」とは、第１発光部、第２発光部、及び受光部の感度調整を行う際に用いる器具であり、図６に示すように、感度調整部１６０及び支持部１７０を備えている。このうち、感度調整部１６０は、第１発光部、第２発光部、及び受光部の感度調整を行うための感度調整手段であり、例えば公知の火災検出装置用の感度調整手段等を用いて構成されている。また、支持部１７０は、感度調整部１６０を支持するための支持手段であり、図６に示すように、支持部本体１７１、第１脚部１７２、及び第２脚部１７３を備えている。このうち、支持部本体１７１は、支持部１７０の基本構造体であって、感度調整部１６０を支持部１７０に固定するためのものであり、平面形状が曲線状である長尺な板状体にて形成されている。また、第１脚部１７２及び第２脚部１７３は、支持部本体１７１を支持するものであり、長尺な中実（又は中空）の棒状体にて形成されており、支持部本体１７１に対して取り付けられている。具体的には、図６（ｂ）に示すように、第１脚部１７２は支持部本体１７１の長手方向の端部の一方において上下方向に張り出すように取り付けられていると共に、第２脚部１７３は支持部本体１７１の長手方向の端部の他方において上下方向に張り出すように取り付けられている。   Here, the “sensitivity adjusting device 150” is a device used when adjusting the sensitivity of the first light emitting unit, the second light emitting unit, and the light receiving unit, and as shown in FIG. The unit 170 is provided. Of these, the sensitivity adjusting unit 160 is a sensitivity adjusting unit for adjusting the sensitivity of the first light emitting unit, the second light emitting unit, and the light receiving unit. For example, a known sensitivity adjusting unit for a fire detection device is used. It is configured. Further, the support portion 170 is a support means for supporting the sensitivity adjustment portion 160, and includes a support portion main body 171, a first leg portion 172, and a second leg portion 173, as shown in FIG. Of these, the support portion main body 171 is a basic structure of the support portion 170 and is for fixing the sensitivity adjusting portion 160 to the support portion 170, and is a long plate-like body having a curved planar shape. It is formed in. The first leg portion 172 and the second leg portion 173 support the support portion main body 171, and are formed of a long solid (or hollow) rod-shaped body. It is attached to. Specifically, as shown in FIG. 6B, the first leg 172 is attached so as to project in the vertical direction at one of the longitudinal end portions of the support body 171 and the second leg 172 is attached. The portion 173 is attached to the other end of the supporting portion main body 171 in the longitudinal direction so as to project in the vertical direction.

また、第１固定部１１１及び第２固定部１１２の具体的な構成については、図６に示すように、第１固定部１１１の第１嵌込孔１１１ａに感度調整器具１５０の第１脚部１７２を嵌め込むことが可能であり、且つ第２固定部１１２の第２嵌込孔１１２ａに感度調整器具１５０の第２脚部１７３を嵌め込むことが可能な位置に、第１固定部１１１及び第２固定部１１２は設置されている。また、第１嵌込孔１１１ａの直径については、第１脚部１７２を嵌め込むことが可能であり、且つ支持部本体１７１のふらつきを抑制可能な大きさに設定しており、例えば、第１脚部１７２の直径と略同一に設定している。また、第２嵌込孔１１２ａの直径については、第２脚部１７３を嵌め込むことが可能であり、且つ支持部本体１７１のふらつきを抑制可能な大きさに設定しており、例えば、第２脚部１７３の直径と略同一に設定している。   Further, regarding the specific configurations of the first fixing portion 111 and the second fixing portion 112, as shown in FIG. 6, the first leg portion of the sensitivity adjusting device 150 is inserted into the first fitting hole 111 a of the first fixing portion 111. 172 can be fitted and the first fixing portion 111 and the second fixing portion 112 can be fitted in the second fitting hole 112a of the second fixing portion 112 at a position where the second leg portion 173 of the sensitivity adjusting device 150 can be fitted. The second fixing portion 112 is installed. In addition, the diameter of the first fitting hole 111a is set to a size that allows the first leg 172 to be fitted therein and suppresses the fluctuation of the support portion main body 171. The diameter is set to be substantially the same as the diameter of the leg portion 172. In addition, the diameter of the second fitting hole 112a is set to a size that allows the second leg portion 173 to be fitted therein and suppresses the fluctuation of the support portion main body 171. The diameter is set to be substantially the same as the diameter of the leg portion 173.

このような第２の特徴により、感度調整器具１５０を正確且つ迅速に取り付けることができ、第１発光部、第２発光部、及び受光部の感度調整作業の効率化を図ることが可能となる。また、感度調整器具１５０の位置合わせ用の部材を検出部カバー７０又は検出部本体８０に別途設ける必要がなくなるため、火災検出装置１の製造コストを低減できる。   With such a second feature, the sensitivity adjusting device 150 can be attached accurately and quickly, and the efficiency of the sensitivity adjusting work of the first light emitting unit, the second light emitting unit, and the light receiving unit can be improved. . Further, since it is not necessary to separately provide a member for aligning the sensitivity adjusting device 150 on the detection unit cover 70 or the detection unit main body 80, the manufacturing cost of the fire detection device 1 can be reduced.

（固定構造の作用）
図５に戻り、続いて、このように構成された火災検出装置１の固定構造の作用について説明する。この固定構造の作用は、検出部カバー７０と検出部本体８０とを固定する場合の作用（以下、「第１作用」と称する）と、感度調整器具１５０と検出部本体８０とを固定する場合の作用（以下、「第２作用」と称する）とに大別されるので、以下では、第１作用及び第２作用についてそれぞれ説明する。 (Function of fixed structure)
Returning to FIG. 5, the operation of the fixing structure of the fire detection device 1 configured as above will be described. The action of this fixing structure is the action of fixing the detection unit cover 70 and the detection unit main body 80 (hereinafter, referred to as “first action”), and the action of fixing the sensitivity adjusting device 150 and the detection unit main body 80. (Hereinafter, referred to as "second action"), the first action and the second action will be described below.

（固定構造の作用−第１作用）
最初に、第１作用について説明する。 (Operation of fixed structure-first operation)
First, the first action will be described.

まず、検出部カバー７０と検出部本体８０とを固定する場合には、まず、図５（ｂ）に示すように、第１ガイド部１２１を第１固定部１１１の第１嵌込孔１１１ａに嵌め込み、且つ第２ガイド部１２２を第２固定部１１２の第２嵌込孔１１２ａに嵌め込む。次いで、検出部カバー７０の第１挿通孔１３１を第１ガイド部１２１及び第１固定部１１１に挿通すると共に、検出部カバー７０の第２挿通孔１３２を第２ガイド部１２２及び第２固定部１１２に挿通すると、図５（ｃ）に示すように、第１固定部１１１が第１挿通孔１３１に嵌合されると共に、第２固定部１１２が第２挿通孔１３２に嵌合される。これにより、検出部カバー７０と検出部本体８０とを正確且つ迅速に固定することが可能となる。   First, when fixing the detection unit cover 70 and the detection unit main body 80, first, as shown in FIG. 5B, the first guide portion 121 is inserted into the first fitting hole 111 a of the first fixing portion 111. Then, the second guide portion 122 is fitted into the second fitting hole 112a of the second fixing portion 112. Next, the first insertion hole 131 of the detection unit cover 70 is inserted into the first guide unit 121 and the first fixing unit 111, and the second insertion hole 132 of the detection unit cover 70 is inserted into the second guide unit 122 and the second fixing unit. When inserted through 112, as shown in FIG. 5C, the first fixing portion 111 is fitted into the first insertion hole 131, and the second fixing portion 112 is fitted into the second insertion hole 132. This makes it possible to fix the detection unit cover 70 and the detection unit main body 80 accurately and quickly.

また、検出部カバー７０を検出部本体８０から取り外す場合には、検出部カバー７０と検出部本体８０とを固定する場合の作業とは逆の作業を行うことで、検出部カバー７０を検出部本体８０から容易に取り外すことができる。あるいは、第１ガイド部１２１及び第２ガイド部１２２を検出部本体８０から取り外した後に、第１挿通孔１３１から第１ガイド部１２１を取り外し、且つ第２挿通孔１３２から第２ガイド部１２２を取り外すことにより、検出部カバー７０を検出部本体８０から取り外してもよい。   Further, when removing the detection unit cover 70 from the detection unit main body 80, the detection unit cover 70 is removed by performing a work reverse to the work when fixing the detection unit cover 70 and the detection unit main body 80. It can be easily removed from the main body 80. Alternatively, after removing the first guide portion 121 and the second guide portion 122 from the detection portion main body 80, the first guide portion 121 is removed from the first insertion hole 131, and the second guide portion 122 is removed from the second insertion hole 132. The detector cover 70 may be removed from the detector main body 80 by removing it.

（固定構造の作用−第２作用）
次に、第２作用について説明する。 (Operation of fixed structure-second operation)
Next, the second action will be described.

まず、感度調整器具１５０と検出部本体８０とを固定する場合には、検出部カバー７０と検出部本体８０とを固定した状態において、第１ガイド部１２１及び第２ガイド部１２２を検出部本体８０から取り外す。次いで、第１嵌込孔１１１ａに感度調整器具１５０の第１脚部１７２を挿通すると共に、第２嵌込孔１１２ａに感度調整器具１５０の第２脚部１７３を挿通すると、図６に示すように、第１嵌込孔１１１ａに第１脚部１７２が嵌め込まれると共に、第２嵌込孔１１２ａに第２脚部１７３が嵌め込まれる。これにより、感度調整器具１５０と検出部本体８０とを正確且つ迅速に固定することが可能となる。   First, when fixing the sensitivity adjusting device 150 and the detection unit main body 80, the first guide unit 121 and the second guide unit 122 are fixed to the detection unit main body with the detection unit cover 70 and the detection unit main body 80 fixed. Remove from 80. Next, when the first leg 172 of the sensitivity adjusting device 150 is inserted into the first fitting hole 111a and the second leg 173 of the sensitivity adjusting device 150 is inserted into the second fitting hole 112a, as shown in FIG. In addition, the first leg 172 is fitted in the first fitting hole 111a, and the second leg 173 is fitted in the second fitting hole 112a. This makes it possible to fix the sensitivity adjusting device 150 and the detection unit main body 80 accurately and quickly.

また、感度調整器具１５０を検出部本体８０から取り外す場合には、感度調整器具１５０と検出部本体８０とを固定する場合の作業とは逆の作業を行うことで、感度調整器具１５０を検出部本体８０から容易に取り外すことができる。   Further, when the sensitivity adjusting instrument 150 is removed from the detecting section main body 80, the sensitivity adjusting instrument 150 is detected by performing the reverse operation to the operation when fixing the sensitivity adjusting instrument 150 and the detecting section main body 80. It can be easily removed from the main body 80.

（実施の形態の効果）
このように実施の形態によれば、検出部カバー７０と検出部本体８０とを固定するための第１固定部１１１及び第２固定部１１２と、第１固定部１１１及び第２固定部１１２を介して検出部カバー７０と検出部本体８０とを固定する際に、検出部カバー７０を第１固定部１１１及び第２固定部１１２へ案内するための第１ガイド部１２１及び第２ガイド部１２２と、を備えたので、第１固定部１１１及び第２固定部１１２を介して検出部カバー７０と検出部本体８０とを固定する際に、第１ガイド部１２１及び第２ガイド部１２２によって検出部カバー７０を第１固定部１１１及び第２固定部１１２へ案内でき、第１ガイド部１２１及び第２ガイド部１２２を設けない場合に比べて、検出部カバー７０と検出部本体８０とを正確且つ迅速に固定することができる。よって、検出部カバー７０及び検出部本体８０の組立作業の効率化を図ることができ、火災検出装置１の製造性を向上させることが可能となる。特に、検出部カバー７０を基板１００等から突出する部品（例えば、サーミスタ等）に接触させずに固定しやすくなるため、検出部カバー７０及び検出部本体８０の組立作業の効率化を図りやすくなる。 (Effects of the embodiment)
As described above, according to the embodiment, the first fixing portion 111 and the second fixing portion 112 for fixing the detecting portion cover 70 and the detecting portion main body 80, and the first fixing portion 111 and the second fixing portion 112 are provided. A first guide part 121 and a second guide part 122 for guiding the detection part cover 70 to the first fixing part 111 and the second fixing part 112 when fixing the detection part cover 70 and the detection part main body 80 via them. Since it is provided with, the first guide portion 121 and the second guide portion 122 detect when fixing the detection portion cover 70 and the detection portion main body 80 via the first fixing portion 111 and the second fixing portion 112. The part cover 70 can be guided to the first fixed part 111 and the second fixed part 112, and the detection part cover 70 and the detection part main body 80 are more accurate than in the case where the first guide part 121 and the second guide part 122 are not provided. And fast It can be. Therefore, the efficiency of the assembling work of the detection unit cover 70 and the detection unit main body 80 can be improved, and the manufacturability of the fire detection device 1 can be improved. In particular, the detection unit cover 70 can be easily fixed without coming into contact with a component (for example, a thermistor) protruding from the substrate 100 or the like, so that the efficiency of the assembly work of the detection unit cover 70 and the detection unit main body 80 can be facilitated. .

また、検出部カバー７０又は検出部本体８０を第１ガイド部１２１（又は第２ガイド部１２２）と第１固定部１１１（又は第２固定部１１２）とを介して挿通させて第１固定部１１１（又は第２固定部１１２）に対して着脱自在に固定可能となるように、検出部カバー７０、検出部本体８０、第１固定部１１１、第２固定部１１２、第１ガイド部１２１、及び第２ガイド部１２２を構成したので、検出部カバー７０と第１固定部１１１又は第２固定部１１２との接触面積を増やすことができ、検出部カバー７０を第１固定部１１１及び第２固定部１１２に対して強固に固定できる。また、検出部カバー７０を第１固定部１１１及び第２固定部１１２に対して容易に着脱でき、メンテナンス作業等を容易に行うことができる。   In addition, the detection unit cover 70 or the detection unit main body 80 is inserted through the first guide unit 121 (or the second guide unit 122) and the first fixing unit 111 (or the second fixing unit 112) to make the first fixing unit. 111 (or the second fixing portion 112) so as to be detachably fixed to the detecting portion cover 70, the detecting portion main body 80, the first fixing portion 111, the second fixing portion 112, the first guide portion 121, Since the second guide 122 is configured, the contact area between the detection unit cover 70 and the first fixing unit 111 or the second fixing unit 112 can be increased, and the detection unit cover 70 can be attached to the first fixing unit 111 and the second fixing unit 112. It can be firmly fixed to the fixed portion 112. Further, the detector cover 70 can be easily attached to and detached from the first fixing portion 111 and the second fixing portion 112, and maintenance work and the like can be easily performed.

また、第１ガイド部１２１及び第２ガイド部１２２の各々の長手方向の長さを、検出部カバー７０又は検出部本体８０を第１ガイド部１２１及び第２ガイド部１２２に挿通する際又は当該挿通後に第１固定部１１１及び第２固定部１１２へ案内する際に、当該検出部カバー７０又は当該検出部本体８０が上記部品と接触することを抑制可能な長さとしたので、上記挿通する際又は上記案内する際に検出部カバー７０又は検出部本体８０が上記部品と接触することを抑制できる。よって、例えば、検出部カバー７０及び検出部本体８０の組立作業時に、上記部品が破損又は脱落することや、上記部品が取り付けられている部材（例えば基板１００等）に変形又は負荷が生じることを回避しやすくなる。   In addition, the length of each of the first guide portion 121 and the second guide portion 122 in the longitudinal direction is set when the detection portion cover 70 or the detection portion main body 80 is inserted into the first guide portion 121 and the second guide portion 122, or Since the contact length of the detection unit cover 70 or the detection unit main body 80 can be suppressed when guiding to the first fixing portion 111 and the second fixing portion 112 after the insertion, when the insertion is performed. Alternatively, it is possible to prevent the detection unit cover 70 or the detection unit main body 80 from coming into contact with the above components when the above-mentioned guidance is provided. Therefore, for example, during the assembling work of the detection unit cover 70 and the detection unit main body 80, it is possible that the components are damaged or fallen off, or the member (for example, the substrate 100 or the like) to which the components are attached is deformed or loaded. It is easy to avoid.

また、第１固定部１１１及び第２固定部１１２を相互に間隔を隔てて設けているので、第１固定部１１１又は第２固定部１１２のいずれか一方のみ設けた場合に比べて、検出部カバー７０と検出部本体８０とを安定して固定できると共に、検出部カバー７０と検出部本体８０との位置合わせを容易に行うことができ、検出部カバー７０と検出部本体８０とを効果的に固定できる。   In addition, since the first fixing portion 111 and the second fixing portion 112 are provided at a distance from each other, as compared with the case where only one of the first fixing portion 111 and the second fixing portion 112 is provided, the detecting portion. The cover 70 and the detection section main body 80 can be stably fixed, and the detection section cover 70 and the detection section main body 80 can be easily aligned with each other, so that the detection section cover 70 and the detection section main body 80 are effectively formed. Can be fixed to.

また、第１固定部１１１又は第２固定部１１２の一方から第１固定部１１１又は第２固定部１１２の他方に至る直線Ｌ上に検出空間６０の略中心部が位置するように、第１固定部１１１及び第２固定部１１２を配置したので、検出部カバー７０及び検出部本体８０の芯出し（具体的には、水平方向の芯出し）を容易に行うことができ、検出部カバー７０と検出部本体８０とを正確に固定しやすくなる。   In addition, the first central portion of the detection space 60 is positioned on a straight line L from one of the first fixing portion 111 or the second fixing portion 112 to the other of the first fixing portion 111 or the second fixing portion 112, so that Since the fixing portion 111 and the second fixing portion 112 are arranged, the detection unit cover 70 and the detection unit main body 80 can be easily centered (specifically, horizontal centering), and the detection unit cover 70 is provided. It becomes easy to fix the detection unit body 80 and the detection unit body 80 accurately.

また、感度調整器具１５０を第１固定部１１１及び第２固定部１１２に対して固定可能となるように、第１固定部１１１及び第２固定部１１２を構成したので、感度調整器具１５０を正確且つ迅速に取り付けることができ、第１発光部、第２発光部、及び受光部の感度調整作業の効率化を図ることが可能となる。また、感度調整器具１５０の位置合わせ用の部材を検出部カバー７０又は検出部本体８０に別途設ける必要がなくなるため、火災検出装置１の製造コストを低減できる。   Further, since the first fixing part 111 and the second fixing part 112 are configured so that the sensitivity adjusting device 150 can be fixed to the first fixing part 111 and the second fixing part 112, the sensitivity adjusting device 150 can be accurately measured. In addition, it can be attached quickly, and the efficiency of the sensitivity adjustment work of the first light emitting portion, the second light emitting portion, and the light receiving portion can be improved. Further, since it is not necessary to separately provide a member for aligning the sensitivity adjusting device 150 on the detection unit cover 70 or the detection unit main body 80, the manufacturing cost of the fire detection device 1 can be reduced.

〔ＩＩＩ〕実施の形態に対する変形例
以上、本発明に係る実施の形態について説明したが、本発明の具体的な構成及び手段は、特許請求の範囲に記載した各発明の技術的思想の範囲内において、任意に改変及び改良することができる。以下、このような変形例について説明する。 [III] Modifications to Embodiments The embodiments according to the present invention have been described above, but the specific configuration and means of the present invention are within the scope of the technical idea of each invention described in the claims. In, it can be arbitrarily modified and improved. Hereinafter, such a modified example will be described.

（解決しようとする課題や発明の効果について）
まず、発明が解決しようとする課題や発明の効果は、上述の内容に限定されるものではなく、発明の実施環境や構成の細部に応じて異なる可能性があり、上述した課題の一部のみを解決したり、上述した効果の一部のみを奏したりすることがある。 (About problems to be solved and effects of the invention)
First, the problem to be solved by the invention and the effect of the invention are not limited to the above-mentioned contents, and may differ depending on the implementation environment of the invention and details of the configuration, and only a part of the above-mentioned problems May be solved or only a part of the effects described above may be achieved.

（火災検出装置について）
上記実施の形態では、火災検出装置１が、内カバー３０を備えていると説明したが、これに限らず、例えば、内カバー３０を省略してよい。 (About fire detection device)
Although the fire detection device 1 is described as including the inner cover 30 in the above embodiment, the present invention is not limited to this, and the inner cover 30 may be omitted, for example.

また、上記実施の形態では、火災検出装置１が、第１発光部及び第２発光部を備えていると説明したが、これに限らず、例えば、第１発光部又は第２発光部のいずれか１つを省略してもよい。   Moreover, in the said embodiment, although it explained that the fire detection apparatus 1 was equipped with the 1st light emission part and the 2nd light emission part, it is not restricted to this, For example, either a 1st light emission part or a 2nd light emission part. One or the other may be omitted.

（固定構造について）
上記実施の形態では、第１固定部１１１及び第２固定部１１２が検出部本体８０に設けられ、第１挿通孔１３１及び第２挿通孔１３２が検出部カバー７０に設けられていると説明したが、これに限らない。例えば、第１固定部１１１及び第２固定部１１２が検出部カバー７０に設けられ、第１挿通孔１３１及び第２挿通孔１３２が検出部本体８０に設けられてもよい。この場合には、第１ガイド部１２１及び第２ガイド部１２２は、検出部本体８０を第１固定部１１１又は第２固定部１１２へ案内することになる。 (About fixed structure)
In the above-described embodiment, the first fixing portion 111 and the second fixing portion 112 are provided in the detection unit main body 80, and the first insertion hole 131 and the second insertion hole 132 are provided in the detection unit cover 70. However, it is not limited to this. For example, the first fixing portion 111 and the second fixing portion 112 may be provided in the detection unit cover 70, and the first insertion hole 131 and the second insertion hole 132 may be provided in the detection unit main body 80. In this case, the first guide section 121 and the second guide section 122 guide the detection section main body 80 to the first fixing section 111 or the second fixing section 112.

また、上記実施の形態では、第１固定部１１１及び第２固定部１１２が、相互に間隔を隔てて設けられていると説明したが、これに限らず、例えば、隣接して設けられてもよい。   In addition, in the above-described embodiment, the first fixing portion 111 and the second fixing portion 112 are described as being spaced apart from each other, but the present invention is not limited to this, and may be provided adjacent to each other, for example. Good.

また、上記実施の形態では、第１固定部１１１及び第２固定部１１２が、直線Ｌ上に検出空間６０の略中心部が位置するように配置されていると説明したが、これに限らず、例えば、上記直線Ｌ上に検出空間６０の略中心部が位置しないように配置されてもよい。   Further, in the above-described embodiment, it is described that the first fixing portion 111 and the second fixing portion 112 are arranged such that the substantially central portion of the detection space 60 is located on the straight line L, but the present invention is not limited to this. For example, it may be arranged such that the substantially central portion of the detection space 60 is not located on the straight line L.

また、上記実施の形態では、感度調整器具１５０を第１固定部１１１及び第２固定部１１２に対して固定可能となるように、第１固定部１１１及び第２固定部１１２が構成されていると説明したが、これに限らず、例えば、感度調整器具１５０を第１固定部１１１及び第２固定部１１２に対して固定できないように、第１固定部１１１及び第２固定部１１２が構成されてもよい。   Further, in the above embodiment, the first fixing portion 111 and the second fixing portion 112 are configured so that the sensitivity adjusting device 150 can be fixed to the first fixing portion 111 and the second fixing portion 112. However, the present invention is not limited to this, and for example, the first fixing portion 111 and the second fixing portion 112 are configured such that the sensitivity adjusting device 150 cannot be fixed to the first fixing portion 111 and the second fixing portion 112. May be.

（固定手段について）
上記実施の形態では、第１固定部１１１の如き固定手段の設置数が２つであると説明したが、これに限らず、例えば、１つであってもよく、又は３つ以上であってもよい。この場合には、第１ガイド部１２１の如きガイド手段の設置数及び第１挿通孔１３１の如き挿通孔の設置数は、固定手段の設置数に応じた数に設定される。 (About fixing means)
In the above embodiment, the number of fixing means such as the first fixing portion 111 installed is two, but the number is not limited to this, and may be one, or three or more, for example. Good. In this case, the number of installed guide means such as the first guide portion 121 and the number of installed insertion holes such as the first insertion hole 131 are set to a number according to the number of installed fixing means.

（ガイド手段について）
上記実施の形態では、第１ガイド部１２１が第１固定部１１１と別体に形成されていると説明したが、これに限らず、例えば、一体に形成されてもよい（なお、第２ガイド部１２２についても同様とする）。 (About guide means)
Although the first guide portion 121 is described as being formed separately from the first fixing portion 111 in the above-described embodiment, the present invention is not limited to this, and may be integrally formed (for example, the second guide portion). The same applies to the part 122).

また、上記実施の形態では、第１ガイド部１２１及び第２ガイド部１２２が、中空の略円柱状体にて形成されていると説明したが、これに限らない。例えば、中空の円錐状体や角柱状体にて形成されてもよい。あるいは、中実体又は筒状体にて形成されてもよい。   In addition, in the above-described embodiment, the first guide portion 121 and the second guide portion 122 are described as being formed of a hollow substantially cylindrical body, but the present invention is not limited to this. For example, it may be formed of a hollow conical body or a prismatic body. Alternatively, it may be formed of a solid body or a tubular body.

また、上記実施の形態では、第１ガイド部１２１及び第２ガイド部１２２が、検出部本体８０に常設されていると説明したが、これに限らない。例えば、第１ガイド部１２１及び第２ガイド部１２２の長手方向の長さが内カバー３０に収容できない長さに設定されている場合には、第１ガイド部１２１及び第２ガイド部１２２は、検出部カバー７０と検出部本体８０とが固定された後に取り外されてもよい。   Further, in the above embodiment, the first guide portion 121 and the second guide portion 122 are explained as being permanently provided in the detection portion main body 80, but the present invention is not limited to this. For example, when the length of the first guide portion 121 and the second guide portion 122 in the longitudinal direction is set to a length that cannot be accommodated in the inner cover 30, the first guide portion 121 and the second guide portion 122 are The detection unit cover 70 and the detection unit main body 80 may be fixed and then removed.

（付記）
付記１の火災検出装置は、監視領域の火災を検出するための火災検出装置であって、検出対象の検出を行う検出空間と、前記検出空間に外乱光が入射することを抑制するための入射抑制手段と、を備え、前記入射抑制手段は、前記検出空間の外周の一部を覆う第１入射抑制手段と、前記検出空間の外周の他の一部を覆う第２入射抑制手段と、前記第１入射抑制手段と前記第２入射抑制手段とを固定するための固定手段と、前記固定手段を介して前記第１入射抑制手段と前記第２入射抑制手段とを固定する際に、前記第１入射抑制手段又は前記第２入射抑制手段を前記固定手段へ案内するためのガイド手段と、を備えた。 (Appendix)
The fire detection device of Appendix 1 is a fire detection device for detecting a fire in a monitoring area, and a detection space for detecting a detection target and an incidence for suppressing disturbance light from entering the detection space. Suppression means, wherein the incidence suppression means includes a first incidence suppression means that covers a part of the outer circumference of the detection space, a second incidence suppression means that covers another part of the outer circumference of the detection space, and The fixing means for fixing the first incident suppressing means and the second incident suppressing means, and the fixing means for fixing the first incident suppressing means and the second incident suppressing means via the fixing means. And a guide means for guiding the first incidence suppressing means or the second incidence suppressing means to the fixing means.

また、付記２の火災検出装置は、付記１に記載の火災検出装置において、前記ガイド手段を、長尺な中空状又は中実状に形成し、前記第１入射抑制手段又は前記第２入射抑制手段を前記ガイド手段及び前記固定手段を介して挿通させて前記固定手段に対して着脱自在に固定可能となるように、前記第１入射抑制手段、前記第２入射抑制手段、前記固定手段、及び前記ガイド手段を構成した。   The fire detection device according to attachment 2 is the fire detection device according to attachment 1, in which the guide means is formed into a long hollow shape or a solid shape, and the first incidence suppressing means or the second incidence suppressing means is provided. So as to be detachably fixed to the fixing means by being inserted through the guide means and the fixing means, and the first incidence suppressing means, the second incidence suppressing means, the fixing means, and the The guide means was constructed.

また、付記３の火災検出装置は、付記２に記載の火災検出装置において、前記ガイド手段の長手方向の長さを、前記第１入射抑制手段又は前記第２入射抑制手段を前記ガイド手段に挿通する際又は当該挿通後に前記固定手段へ案内する際に、当該第１入射抑制手段又は当該第２入射抑制手段が前記検出空間又はその近傍に設けられる部品と接触することを抑制可能な長さとした。   In addition, in the fire detection device according to attachment 3, in the fire detection device according to attachment 2, the length in the longitudinal direction of the guide means is inserted into the guide means by the first incidence suppression means or the second incidence suppression means. The first incident suppressing means or the second incident suppressing means has a length capable of suppressing contact with the detection space or a component provided in the vicinity thereof when performing or guiding the fixing means after the insertion. .

また、付記４の火災検出装置は、付記１から３のいずれか一項に記載の火災検出装置において、一対の前記固定手段を、相互に間隔を隔てて設けた。   In addition, the fire detection device of appendix 4 is the fire detection device according to any one of appendices 1 to 3, in which the pair of fixing means are provided at intervals.

また、付記５の火災検出装置は、付記４に記載の火災検出装置において、前記一対の固定手段の一方から前記一対の固定手段の他方に至る直線上に前記検出空間の略中心部が位置するように、前記一対の固定手段を配置した。   Further, in the fire detection device according to attachment 5, in the fire detection device according to attachment 4, a substantially central portion of the detection space is located on a straight line from one of the pair of fixing means to the other of the pair of fixing means. Thus, the pair of fixing means are arranged.

また、付記６の火災検出装置は、付記１から５のいずれか一項に記載の火災検出装置において、前記検出空間内において検出光の照射及び受光を行うことで前記検出対象を検出するための検出手段を備え、前記検出手段の感度調整を行う際に用いる器具を前記固定手段に対して固定可能となるように、前記固定手段を構成した。   The fire detection device according to appendix 6 is the fire detection device according to any one of appendices 1 to 5, wherein the detection target is detected by irradiating and receiving detection light in the detection space. The fixing means is configured such that the fixing means is provided with the detecting means and the instrument used when adjusting the sensitivity of the detecting means can be fixed to the fixing means.

（付記の効果）
付記１に記載の火災検出装置によれば、第１入射抑制手段と第２入射抑制手段とを固定するための固定手段と、固定手段を介して第１入射抑制手段と第２入射抑制手段とを固定する際に、第１入射抑制手段又は第２入射抑制手段を固定手段へ案内するためのガイド手段と、を備えたので、固定手段を介して第１入射抑制手段と第２入射抑制手段とを固定する際に、ガイド手段によって第１入射抑制手段又は第２入射抑制手段を固定手段へ案内でき、ガイド手段を設けない場合に比べて、第１入射抑制手段と第２入射抑制手段とを正確且つ迅速に固定することができる。よって、入射抑制手段の組立作業の効率化を図ることができ、火災検出装置の製造性を向上させることが可能となる。特に、第１入射抑制手段又は第２入射抑制手段を基板等から突出する部品（例えば、サーミスタ等）に接触させずに固定しやすくなるため、入射抑制手段の組立作業の効率化を図りやすくなる。 (Effect of additional notes)
According to the fire detection device described in appendix 1, the fixing means for fixing the first incident suppressing means and the second incident suppressing means, and the first incident suppressing means and the second incident suppressing means via the fixing means. And a guide means for guiding the first incident suppressing means or the second incident suppressing means to the fixing means when fixing the first incident suppressing means and the second incident suppressing means through the fixing means. When fixing (1) and (2), the guide means can guide the first incident suppressing means or the second incident suppressing means to the fixing means, and the first incident suppressing means and the second incident suppressing means can be compared with the case where the guide means is not provided. Can be fixed accurately and quickly. Therefore, the efficiency of the assembling work of the incidence suppressing means can be improved, and the manufacturability of the fire detecting device can be improved. In particular, since it becomes easy to fix the first incidence suppressing means or the second incidence suppressing means without contacting a component (for example, a thermistor) protruding from the substrate or the like, it is easy to improve the efficiency of the assembly work of the incidence suppressing means. .

付記２に記載の火災検出装置によれば、第１入射抑制手段又は第２入射抑制手段をガイド手段及び固定手段を介して挿通させて固定手段に対して着脱自在に固定可能となるように、第１入射抑制手段、第２入射抑制手段、固定手段、及びガイド手段を構成したので、第１入射抑制手段又は第２入射抑制手段と固定手段との接触面積を増やすことができ、第１入射抑制手段又は第２入射抑制手段を固定手段に対して強固に固定できる。また、第１入射抑制手段又は第２入射抑制手段を固定手段に対して容易に着脱でき、メンテナンス作業等を容易に行うことができる。   According to the fire detection device described in appendix 2, the first incidence suppressing means or the second incidence suppressing means is inserted through the guide means and the fixing means so that it can be detachably fixed to the fixing means. Since the first incidence suppressing means, the second incidence suppressing means, the fixing means, and the guide means are configured, the contact area between the first incidence suppressing means or the second incidence suppressing means and the fixing means can be increased, and the first incidence is suppressed. The suppressing means or the second incidence suppressing means can be firmly fixed to the fixing means. Further, the first incidence suppressing means or the second incidence suppressing means can be easily attached to and detached from the fixing means, and maintenance work or the like can be easily performed.

付記３に記載の火災検出装置によれば、ガイド手段の長手方向の長さを、第１入射抑制手段又は第２入射抑制手段をガイド手段に挿通する際又は当該挿通後に固定手段へ案内する際に、当該第１入射抑制手段又は当該第２入射抑制手段が検出空間又はその近傍に設けられる部品と接触することを抑制可能な長さとしたので、上記挿通する際又は上記案内する際に第１入射抑制手段又は第２入射抑制手段が上記部品と接触することを抑制できる。よって、例えば、第１入射抑制手段及び第２入射抑制手段の組立作業時に、上記部品が破損又は脱落することや、上記部品が取り付けられている部材（例えば基板等）に変形又は負荷が生じることを回避しやすくなる。   According to the fire detection device described in appendix 3, when the first incident suppressing means or the second incident suppressing means is inserted into the guide means or when the guide means is guided to the fixing means after the insertion. In addition, since the first incidence suppressing means or the second incidence suppressing means has a length that can suppress contact with a component provided in the detection space or in the vicinity thereof, the first incidence suppressing means can be used when inserting or guiding. It is possible to suppress the incidence suppressing means or the second incidence suppressing means from coming into contact with the component. Therefore, for example, during the assembly work of the first incidence suppressing means and the second incidence suppressing means, the parts are damaged or fallen off, or a member (for example, a board or the like) to which the parts are attached is deformed or loaded. Will be easier to avoid.

付記４に記載の火災検出装置によれば、一対の固定手段を相互に間隔を隔てて設けたので、１つの固定手段のみを設けた場合に比べて、第１入射抑制手段と第２入射抑制手段とを安定して固定できると共に、第１入射抑制手段と第２入射抑制手段との位置合わせを容易に行うことができ、第１入射抑制手段と第２入射抑制手段とを効果的に固定できる。   According to the fire detection device described in appendix 4, since the pair of fixing means are provided at a distance from each other, the first incident suppressing means and the second incident suppressing means are provided as compared with the case where only one fixing means is provided. The first incident suppressing means and the second incident suppressing means can be easily aligned with each other, and the first incident suppressing means and the second incident suppressing means can be effectively fixed. it can.

付記５に記載の火災検出装置によれば、一対の固定手段の一方から一対の固定手段の他方に至る直線上に検出空間の略中心部が位置するように、一対の固定手段を配置したので、第１入射抑制手段及び第２入射抑制手段の芯出しを容易に行うことができ、第１入射抑制手段と第２入射抑制手段とを正確に固定しやすくなる。   According to the fire detection device described in appendix 5, the pair of fixing means is arranged such that the substantially central portion of the detection space is located on a straight line from one of the pair of fixing means to the other of the pair of fixing means. The first incidence suppressing means and the second incidence suppressing means can be easily centered, and the first incidence suppressing means and the second incidence suppressing means can be easily fixed accurately.

付記６に記載の火災検出装置によれば、検出手段の感度調整を行う際に用いる器具を固定手段に対して固定可能となるように、固定手段を構成したので、器具を正確且つ迅速に取り付けることができ、検出手段の感度調整作業の効率化を図ることが可能となる。また、器具の位置合わせ用の部材を第１入射抑制手段又は第２入射抑制手段に別途設ける必要がなくなるため、火災検出装置の製造コストを低減できる。   According to the fire detection device described in appendix 6, since the fixing means is configured so that the equipment used when adjusting the sensitivity of the detection means can be fixed to the fixing means, the equipment can be attached accurately and quickly. Therefore, the efficiency of the sensitivity adjustment work of the detection means can be improved. Further, it is not necessary to separately provide a member for aligning the device in the first incidence suppressing means or the second incidence suppressing means, so that the manufacturing cost of the fire detection device can be reduced.

１ 火災検出装置
２ 設置面
１０ 取付ベース
２０ 外カバー
２１ 外カバー本体
２２ 天面部
２２ａ 表示孔
２３ 第１リブ部
２４ 第２リブ部
３０ 内カバー
３０ａ 第１開口部
４０ 流入空間
５０ 防虫網
６０ 検出空間
７０ 検出部カバー
７０ａ 第２開口部
８０ 検出部本体
９０ 端子盤
９１ 取付部材
１００ 基板
１０４ａ ライトガイド
１１１ 第１固定部
１１１ａ 第１嵌込孔
１１２ 第２固定部
１１２ａ 第２嵌込孔
１２１ 第１ガイド部
１２２ 第２ガイド部
１３１ 第１挿通孔
１３２ 第２挿通孔
１５０ 感度調整器具
１６０ 感度調整部
１７０ 支持部
１７１ 支持部本体
１７２ 第１脚部
１７３ 第２脚部
Ｌ 直線 1 Fire Detection Device 2 Installation Surface 10 Mounting Base 20 Outer Cover 21 Outer Cover Body 22 Top Surface 22a Display Hole 23 First Rib 24 Second Rib 30 Inner Cover 30a First Opening 40 Inflow Space 50 Insect Net 60 Detection Space 70 Detector Cover 70a Second Opening 80 Detector Main Body 90 Terminal Board 91 Mounting Member 100 Board 104a Light Guide 111 First Fixing Part 111a First Fitting Hole 112 Second Fixing Part 112a Second Fitting Hole 121 First Guide Part 122 Second guide part 131 First insertion hole 132 Second insertion hole 150 Sensitivity adjustment instrument 160 Sensitivity adjustment part 170 Support part 171 Support part body 172 First leg part 173 Second leg part L Straight line

Claims (6)

監視領域の火災を検出するための火災検出装置であって、
検出対象の検出を行う検出空間と、
前記検出空間に外乱光が入射することを抑制するための入射抑制手段と、を備え、
前記入射抑制手段は、
前記検出空間の外周の一部を覆う第１入射抑制手段と、
前記検出空間の外周の他の一部を覆う第２入射抑制手段と、
前記第１入射抑制手段と前記第２入射抑制手段とを固定するための固定手段と、
前記固定手段を介して前記第１入射抑制手段と前記第２入射抑制手段とを固定する際に、前記第１入射抑制手段又は前記第２入射抑制手段を前記固定手段へ案内するためのガイド手段と、
を備えた火災検出装置。 A fire detection device for detecting a fire in a monitoring area,
A detection space for detecting the detection target,
An incident suppression unit for suppressing the incidence of ambient light on the detection space,
The incident suppression means,
First incidence suppressing means for covering a part of the outer periphery of the detection space,
Second incidence suppressing means for covering another part of the outer periphery of the detection space,
Fixing means for fixing the first incidence suppressing means and the second incidence suppressing means,
Guide means for guiding the first incidence suppressing means or the second incidence suppressing means to the fixing means when fixing the first incident suppressing means and the second incident suppressing means via the fixing means. When,
Fire detector equipped with. 前記ガイド手段を、長尺な中空状又は中実状に形成し、
前記第１入射抑制手段又は前記第２入射抑制手段を前記ガイド手段及び前記固定手段を介して挿通させて前記固定手段に対して着脱自在に固定可能となるように、前記第１入射抑制手段、前記第２入射抑制手段、前記固定手段、及び前記ガイド手段を構成した、
請求項１に記載の火災検出装置。 The guide means is formed into a long hollow or solid shape,
The first incidence suppressing means, so that the first incidence suppressing means or the second incidence suppressing means can be detachably fixed to the fixing means by being inserted through the guide means and the fixing means. The second incidence suppressing means, the fixing means, and the guide means are configured,
The fire detection device according to claim 1. 前記ガイド手段の長手方向の長さを、前記第１入射抑制手段又は前記第２入射抑制手段を前記ガイド手段に挿通する際又は当該挿通後に前記固定手段へ案内する際に、当該第１入射抑制手段又は当該第２入射抑制手段が前記検出空間又はその近傍に設けられる部品と接触することを抑制可能な長さとした、
請求項２に記載の火災検出装置。 When the first incident suppressing means or the second incident suppressing means is inserted into the guide means or when the guide means is guided to the fixing means after the insertion, the first incident suppressing means is provided. The length of the means or the second incidence suppressing means is capable of suppressing contact with the detection space or a component provided in the vicinity thereof,
The fire detection device according to claim 2. 一対の前記固定手段を、相互に間隔を隔てて設けた、
請求項１から３のいずれか一項に記載の火災検出装置。 A pair of the fixing means, provided at a distance from each other,
The fire detection device according to any one of claims 1 to 3. 前記一対の固定手段の一方から前記一対の固定手段の他方に至る直線上に前記検出空間の略中心部が位置するように、前記一対の固定手段を配置した、
請求項４に記載の火災検出装置。 The pair of fixing means is arranged so that the substantially central portion of the detection space is located on a straight line from one of the pair of fixing means to the other of the pair of fixing means.
The fire detection device according to claim 4. 前記検出空間内において検出光の照射及び受光を行うことで前記検出対象を検出するための検出手段を備え、
前記検出手段の感度調整を行う際に用いる器具を前記固定手段に対して固定可能となるように、前記固定手段を構成した、
請求項１から５のいずれか一項に記載の火災検出装置。 A detection unit for detecting the detection target by irradiating and receiving detection light in the detection space,
The fixing means is configured so that an instrument used when adjusting the sensitivity of the detecting means can be fixed to the fixing means.
The fire detection device according to any one of claims 1 to 5.
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JP2005352932A (en) * 2004-06-14 2005-12-22 Hochiki Corp Smoke sensor
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JP2018010444A (en) * 2016-07-13 2018-01-18 能美防災株式会社 Photoelectric smoke detector
JP2018081521A (en) * 2016-11-17 2018-05-24 ホーチキ株式会社 sensor

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Publication number Priority date Publication date Assignee Title
JPH01178692U (en) * 1988-06-02 1989-12-21
JP2001216578A (en) * 2000-01-31 2001-08-10 Nohmi Bosai Ltd Fire detector
JP2005352932A (en) * 2004-06-14 2005-12-22 Hochiki Corp Smoke sensor
JP2011215705A (en) * 2010-03-31 2011-10-27 Nohmi Bosai Ltd Insect screen and photoelectric smoke sensor
JP2018010444A (en) * 2016-07-13 2018-01-18 能美防災株式会社 Photoelectric smoke detector
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