JP2018067026A

JP2018067026A - Sensor base

Info

Publication number: JP2018067026A
Application number: JP2016203265A
Authority: JP
Inventors: 宏金子; Hiroshi Kaneko; 信幸秋山; Nobuyuki Akiyama
Original assignee: Nittan Co Ltd
Current assignee: Nittan Co Ltd
Priority date: 2016-10-17
Filing date: 2016-10-17
Publication date: 2018-04-26
Anticipated expiration: 2036-10-17
Also published as: JP6814012B2

Abstract

PROBLEM TO BE SOLVED: To provide a sensor base that can improve assembly work by improving the stability of spring terminal strips in the state of being housed in outer shell terminal plates comprising terminal metal fittings and by preventing components from intertwining with each other so as to be handled as one component.SOLUTION: A sensor base of the present invention comprises: a base member having a concavity portion for housing terminal metal fittings so as to be fixed on the inside of a bottom wall that forms a sensor housing concavity in which a sensor can be housed; and terminal metal fittings housed in the concavity portion, which comprise tubular outer shell terminal plates and elastic spring terminal strips housed in the outer shell terminal plates. In the concavity portion, elastic seizing pieces are provided so as to seize the front ends of the outer shell terminal plates. A seizing portion is provided on a wall body that forms the sensor housing concavity so as to seize the tail end of the rear side of the outer shell terminal plate. The length of the terminal metal fitting is shorter than the distance between the elastic seizing piece and the seizing portion, and the terminal metal fitting that is housed in the concavity portion is configured so as to be clamped to the seizing portion by the resilience of the elastic seizing piece.SELECTED DRAWING: Figure 3

Description

本発明は、熱や煙等を感知する感知器に関し、特に建造物の天井などに感知器本体を取り付けるための感知器ベースおよび該ベースに組み付けられる差込み式端子を構成する端子金具の構造に関する。 The present invention relates to a sensor that detects heat, smoke, and the like, and more particularly, to a sensor base for mounting a sensor main body on a ceiling of a building and a terminal fitting structure that constitutes a plug-in terminal that is assembled to the base.

従来、建築物の天井等に設置される熱や煙、ガス等の感知器は、感知器本体と、該感知器本体を建造物の天井などに取り付けるためのベース部材（以下、感知器ベースと称する）とにより構成されているものが多い。また、この種の感知器として、先ず感知器ベースを天井などに固定し、天井裏などに配設されている電線を接続した後、感知器ベースに対して感知器本体を装着するように構成されているものがある。
さらに、感知器本体と感知器ベースとにより構成された感知器において、感知器ベースに対する電線の接続および感知器ベースに対する感知器本体の装着を容易にするため、接続端子を工夫した感知器ベースに関する発明が提案されている（例えば、特許文献１参照）。 Conventionally, a detector for heat, smoke, gas, etc. installed on the ceiling of a building, etc., has a sensor body and a base member (hereinafter referred to as a sensor base) for attaching the sensor body to the ceiling of the building. In many cases, it is composed of In addition, as a detector of this type, the sensor base is first fixed to the ceiling, etc., and the sensor body is attached to the sensor base after connecting the wires arranged on the back of the ceiling. There is something that has been.
Furthermore, in the sensor comprised by the sensor main body and the sensor base, it is related with the sensor base which devised the connection terminal in order to make easy connection of the electric wire with respect to a sensor base, and mounting | wearing of the sensor main body with respect to a sensor base. An invention has been proposed (see, for example, Patent Document 1).

特開平１１−３０６４５７号公報Japanese Patent Laid-Open No. 11-306457 特開２０１３−２４６４５０号公報JP 2013-246450 A

しかしながら、特許文献１に開示されている感知器ベースにおいては、接続端子を感知器ベースの底にネジによって固定するように構成されているため、接続端子の取付け作業が面倒であるとともに、部品点数も多く小型化が困難である等の課題があった。
そこで、本出願人は、特許文献１に開示されている感知器ベースの課題を解決するため、感知器のベース部材の底壁内面側に、端子金具を係合可能に収容するための窪み部を設けるとともに、該窪み部にベース部材の底壁外面側へ通ずる電線端部挿入穴を設け、前記端子金具は、筒状をなす外殻端子板と該外殻端子板の内部に収納された弾性を有するバネ端子板とから構成した感知器に関する発明を開発し、出願をした（特許文献２参照）。 However, since the sensor base disclosed in Patent Document 1 is configured to fix the connection terminal to the bottom of the sensor base with a screw, the mounting operation of the connection terminal is troublesome and the number of parts is reduced. There are many problems such as difficulty in miniaturization.
Therefore, in order to solve the problem of the sensor base disclosed in Patent Document 1, the applicant of the present invention has a recess for accommodating the terminal fitting in an engageable manner on the bottom wall inner surface side of the base member of the sensor. And a wire end insertion hole that leads to the outer surface of the bottom wall of the base member in the recess, and the terminal fitting is accommodated in a cylindrical outer shell terminal plate and the outer shell terminal plate. An invention relating to a sensor comprising an elastic spring terminal plate was developed and filed (see Patent Document 2).

特許文献２に開示されている感知器は、取付け作業の点では非常に有効であるものの、端子金具を係止する係止片が各収納部にそれぞれ３個設けられているため、感知器ベースの構造が若干複雑である。また、端子金具を構成する筒状の外殻端子板のバネ端子板を挿入する開口部の高さが充分でないため、組み付けが面倒であるとともに、組み立て前のばらばらの状態の部品同士が絡み合ってしまい、組み付けの際に部品をほぐす必要があり、作業効率が悪いという不具合がある。そこで、バネ端子板を外殻端子板内に収納させた状態で扱うことを考えたが、特許文献２に開示されている端子金具は、外殻端子板内に収納させた状態でのバネ端子板の安定性が悪く脱落し易いため、そのような状態での取り扱いが難しいという課題があることが、その後の検討により明らかになった。 Although the sensor disclosed in Patent Document 2 is very effective in terms of installation work, since there are three locking pieces for locking the terminal fittings in each storage portion, the sensor base The structure is slightly complicated. In addition, the height of the opening for inserting the spring terminal plate of the cylindrical outer shell terminal plate that constitutes the terminal fitting is not sufficient, so that the assembly is troublesome and the parts in a disassembled state before assembly are intertwined. Therefore, there is a problem that it is necessary to loosen the parts when assembling, and work efficiency is poor. Therefore, although it was considered to handle the spring terminal plate in a state of being housed in the outer shell terminal plate, the terminal fitting disclosed in Patent Document 2 is a spring terminal in a state of being housed in the outer shell terminal plate. Subsequent examination revealed that there is a problem that it is difficult to handle in such a state because the stability of the plate is poor and it is easy to drop off.

本発明は上記のような課題に着目してなされたもので、その目的とするところは、感知器ベースの構造を簡略化できるようにすることにある。
本発明の他の目的は、端子金具を構成する外殻端子板の筒状部分へのバネ端子板の挿入を簡単に行えるとともに、部品同士が絡み合うのを防止して組み立て作業性を向上させることができる感知器ベースを提供することにある。 The present invention has been made paying attention to the above problems, and an object of the present invention is to make it possible to simplify the structure of the sensor base.
Another object of the present invention is to facilitate the insertion of the spring terminal plate into the cylindrical portion of the outer shell terminal plate constituting the terminal fitting, and to prevent the parts from being entangled and improve the assembly workability. It is to provide a sensor base that can be used.

上記の課題を解決するため、請求項１に記載の感知器ベースは、
感知器が嵌合可能な感知器収容凹部を形成する底壁の内面側に、端子金具を係合可能に収納するための窪み部が設けられたベース部材と、
筒状をなす胴体部および該胴体部の一部から伸びるように形成されたテール部を有する外殻端子板と、該外殻端子板の胴体部内に収納された「く」の字状のバネ端子板とからなり前記窪み部に収納された端子金具と、を備え、
前記窪み部には前記外殻端子板の前端を係止可能な弾性係止片が形成され、前記感知器収容凹部を形成する壁体には前記外殻端子板の後端側の前記テール部の端部を係止可能な係止部が形成され、
前記端子金具は、その長さが前記弾性係止片から前記係止部までの距離よりも短く形成され、前記窪み部に収納された際に、前記弾性係止片の復元力で前記係止部との間に挟持されるように構成され、
前記窪み部を形成する壁体には、窪みの内側から前記ベース部材の底壁外側へ通ずる電線端部挿入穴が設けられていることを特徴とする。 In order to solve the above problem, the sensor base according to claim 1 comprises:
A base member provided with a recess for accommodating a terminal fitting in an engageable manner on the inner surface side of the bottom wall forming a sensor receiving recess into which the sensor can be fitted;
An outer shell terminal plate having a cylindrical body portion and a tail portion formed so as to extend from a part of the body portion, and a spring of “<” shape housed in the body portion of the outer shell terminal plate A terminal fitting made of a terminal plate and housed in the recess,
An elastic locking piece capable of locking the front end of the outer shell terminal plate is formed in the recess, and the tail portion on the rear end side of the outer shell terminal plate is formed on the wall body forming the sensor receiving recess. A locking part capable of locking the end of the is formed,
The terminal fitting is formed with a length shorter than the distance from the elastic locking piece to the locking portion, and when the terminal fitting is housed in the recess, the locking force is restored by the restoring force of the elastic locking piece. Configured to be sandwiched between
The wall body forming the recess is provided with an electric wire end insertion hole that communicates from the inside of the recess to the outside of the bottom wall of the base member.

請求項１に記載の発明によれば、端子金具を収納する窪み部が感知器ベースに形成されているため、端子金具を取り付けるための部品をなくすことができ、感知器ベースの小型化が可能となるとともに、組立て工数が減り、製造コストも削減できる。また、端子金具は弾性係止片の復元力で壁体の係止部との間に挟持されるように構成されているため、端子金具の端部を複数の係止片で係止する必要がなく、感知器ベース側の構造を簡略化することができる。 According to the first aspect of the present invention, since the recess for housing the terminal fitting is formed in the sensor base, the parts for attaching the terminal fitting can be eliminated, and the sensor base can be miniaturized. In addition, the assembly man-hours can be reduced, and the manufacturing cost can be reduced. In addition, since the terminal fitting is configured to be held between the locking portion of the wall body by the restoring force of the elastic locking piece, it is necessary to lock the end portion of the terminal fitting with a plurality of locking pieces. Therefore, the structure on the sensor base side can be simplified.

請求項２に記載の発明は、請求項１に記載の感知器ベースにおいて、
前記バネ端子板には傾斜した突片が形成され、前記外殻端子板には前記バネ端子板の突片と係合可能な細孔が形成されていることを特徴とする。
請求項２に記載の発明によれば、バネ端子板の突片を外殻端子板の細孔に係合させることで、バネ端子板が外殻端子板内から抜けるのを防止することができる。また、これにより、バネ端子板を外殻端子板内に収納して１つの部品として扱うことができるようになるため、部品同士の絡まりを防止することができ、組み立て作業の効率が向上する。 The invention according to claim 2 is based on the sensor base according to claim 1,
The spring terminal plate is formed with an inclined projecting piece, and the outer shell terminal plate is formed with a fine hole engageable with the projecting piece of the spring terminal plate.
According to the second aspect of the present invention, the spring terminal plate can be prevented from coming out of the outer shell terminal plate by engaging the protrusion of the spring terminal plate with the pores of the outer shell terminal plate. . This also allows the spring terminal plate to be housed in the outer shell terminal plate and handled as a single component, so that entanglement between components can be prevented and the efficiency of assembly work is improved.

請求項３に記載の発明は、請求項１または２に記載の感知器ベースにおいて、
前記バネ端子板には、中央に挿入方向のスリットが形成され、該スリットの縁部には、当該バネ端子板の内側へ向かって突出する突起が設けられていることを特徴とする。
請求項３に記載の発明によれば、スリットの縁部にバネ端子板の内側へ向かって突出する突起が設けられているため、バネ端子板を外殻端子板の筒状胴体部へ挿入したり取り外したりする際に、この突起を工具で押したり挟持したりすることで、組み付けや取り外しの作業を容易に行うことができる。 The invention according to claim 3 is the sensor base according to claim 1 or 2,
In the spring terminal plate, a slit in the insertion direction is formed at the center, and a protrusion protruding toward the inside of the spring terminal plate is provided at an edge of the slit.
According to the third aspect of the invention, since the protrusion protruding toward the inside of the spring terminal plate is provided at the edge of the slit, the spring terminal plate is inserted into the cylindrical body portion of the outer shell terminal plate. When removing or removing, by pressing or holding the protrusion with a tool, assembly and removal can be performed easily.

請求項４に記載の発明は、請求項１〜３のいずれかに記載の感知器ベースにおいて、
前記外殻端子板は、筒状をなす前記胴体部の前記バネ端子板の挿入側に矩形状の開口部を備え、該開口部の高さが前記胴体部の奥部の高さよりも高くなるように前記胴体部の壁面が傾斜して形成されていることを特徴とする。
請求項４に記載の発明によれば、筒状胴体部のバネ端子板挿入側の開口部の高さが胴体部の奥部の高さよりも高くなるように胴体部の壁面が傾斜して形成されているため、外殻端子板の筒状胴体部へのバネ端子板の挿入が簡単に行え、組み付け作業の効率が向上する。 The invention according to claim 4 is the sensor base according to any one of claims 1 to 3,
The outer shell terminal plate is provided with a rectangular opening on the insertion side of the spring terminal plate of the tubular body part, and the height of the opening part is higher than the height of the inner part of the body part. As described above, the wall surface of the body portion is formed to be inclined.
According to the invention described in claim 4, the wall surface of the body part is formed so that the height of the opening part on the spring terminal plate insertion side of the cylindrical body part is higher than the height of the back part of the body part. Therefore, the spring terminal plate can be easily inserted into the cylindrical body portion of the outer shell terminal plate, and the efficiency of the assembling work is improved.

請求項５に記載の発明は、請求項１〜４のいずれかに記載の感知器ベースにおいて、
前記窪み部は、互いに一方の端部が連続する外側傾斜壁と内側傾斜壁を有し、
前記弾性係止片は、前記内側傾斜壁に形成された開口部内に、前記外側傾斜壁と内側傾斜壁との結合部に向かって立設され、
前記内側傾斜壁の前記外側傾斜壁との結合部近傍に、前記外側傾斜壁と平行をなすように前記電線端部挿入穴が設けられ、
前記外側傾斜壁にはスリットが形成されるとともに該スリット内に位置し前記感知器ベースの底壁外面より突出する部位を有する弾性押圧片が設けられ、
前記弾性押圧片は、外部より前記突出する部位が押圧されると内側へ移動して、前記バネ端子板を変形させ、前記外殻端子板とバネ端子板との間に隙間を生じさせるように構成されていることを特徴とする。 The invention according to claim 5 is the sensor base according to any one of claims 1 to 4,
The indented portion has an outer inclined wall and an inner inclined wall, one end of which is continuous with each other,
The elastic locking piece is erected in an opening formed in the inner inclined wall toward a coupling portion between the outer inclined wall and the inner inclined wall,
The wire end insertion hole is provided in the vicinity of the coupling portion between the inner inclined wall and the outer inclined wall so as to be parallel to the outer inclined wall,
A slit is formed in the outer inclined wall, and an elastic pressing piece having a portion located in the slit and projecting from the outer surface of the bottom wall of the sensor base is provided,
The elastic pressing piece moves inward when the protruding portion is pressed from the outside, deforms the spring terminal plate, and creates a gap between the outer shell terminal plate and the spring terminal plate. It is configured.

請求項５に記載の発明によれば、弾性押圧片の突出部位を押圧するだけで簡単に端子金具に接続されていた電線を引き抜くことができる。また、外殻端子板の前端を係止する係止片を、逆向きすなわち端子金具を収納する窪みを形成する内側傾斜壁と外側傾斜壁との結合部側から立設するように形成することも可能であるが、結合部へ向かって立設するように形成することによって、内側傾斜壁の外側傾斜壁との結合部近傍に電線端部挿入穴を設けることにより係止片の基部の強度が低下するのを防止することができる。 According to invention of Claim 5, the electric wire connected to the terminal metal fitting can be easily pulled out only by pressing the protrusion part of an elastic press piece. Further, the locking piece for locking the front end of the outer shell terminal plate is formed so as to stand in the opposite direction, that is, from the side of the coupling portion between the inner inclined wall and the outer inclined wall that forms the recess for housing the terminal fitting. Although it is possible, the strength of the base of the locking piece can be obtained by forming the wire end insertion hole in the vicinity of the coupling portion between the inner inclined wall and the outer inclined wall by forming it so as to stand up toward the coupling portion. Can be prevented from decreasing.

本発明によれば、感知器ベースの構造を簡略化することができる。また、端子金具を構成する外殻端子板の筒状部分へのバネ端子板の挿入を簡単に行えるとともに、部品同士が絡み合うのを防止して組み立て作業性を向上させることができる感知器ベースを実現できるという効果がある。 According to the present invention, the structure of the sensor base can be simplified. In addition, a sensor base that can easily insert the spring terminal plate into the cylindrical part of the outer shell terminal plate that constitutes the terminal fitting, and can prevent the parts from becoming entangled and improve the assembly workability. There is an effect that it can be realized.

本発明に係る感知器ベースの一実施形態を示すもので、（Ａ）は平面図、（Ｂ）は底面図である。1A and 1B show an embodiment of a sensor base according to the present invention, in which FIG. 実施形態の感知器ベースの側面図である。It is a side view of the sensor base of an embodiment. 実施形態の感知器ベースの断面構造を示すもので、（Ａ）は図１（Ｂ）におけるＡ−Ａ線に沿った断面図、（Ｂ）は図１（Ｂ）におけるＢ−Ｂ線に沿った断面図である。1A and 1B show a cross-sectional structure of a sensor base according to an embodiment, where FIG. 1A is a cross-sectional view taken along line AA in FIG. 1B, and FIG. 1B is taken along line BB in FIG. FIG. 感知器ベースを構成する端子金具の詳細を示すもので、（Ａ）は組み付け状態の斜視図、（Ｂ）は分離した状態の外殻端子板の斜視図である。The details of the terminal metal fitting which comprises a sensor base are shown, (A) is a perspective view of an assembled state, and (B) is a perspective view of an outer shell terminal plate in a separated state. 図４の端子金具の詳細を示すもので、（Ａ）は組み付け前の状態を示す断面図、（Ｂ）は組み付け後の状態を示す断面図である。FIG. 5 shows details of the terminal fitting of FIG. 4, (A) is a sectional view showing a state before assembly, and (B) is a sectional view showing a state after assembly. 実施形態の感知器ベースと該感知器ベースによって天井等に取り付けられる感知器の一例としての光電式煙感知器を示す分解斜視図である。It is a disassembled perspective view which shows the photoelectric smoke sensor as an example of the sensor base of embodiment, and the sensor attached to a ceiling etc. by this sensor base.

以下、図面を参照して、本発明に係る感知器ベースの一実施形態について説明する。
図１〜図３は、実施形態の感知器ベース１１の詳細を示す。また、図４は感知器ベースを構成する端子金具の詳細を示すもので、（Ａ）はバネ端子板を収納した状態を示す斜視図、図４（Ｂ）は端子金具を構成する外殻端子板を示す斜視図である。
図１に示すように、感知器ベース１１は感知器収容凹部１１Ａを有し、感知器収容凹部１１Ａの底部には、時計の文字盤における３時と６時と９時の位置にそれぞれ端子金具１６を収納するための収納部１１ｂが設けられ、図３（Ａ）に示すように各収納部１１ｂ内に端子金具１６が傾斜した状態で挿入されている。 Hereinafter, an embodiment of a sensor base according to the present invention will be described with reference to the drawings.
1 to 3 show details of the sensor base 11 of the embodiment. 4 shows the details of the terminal fittings constituting the sensor base, (A) is a perspective view showing a state in which the spring terminal plate is accommodated, and FIG. 4 (B) is an outer shell terminal constituting the terminal fittings. It is a perspective view which shows a board.
As shown in FIG. 1, the sensor base 11 has a sensor receiving recess 11A, and at the bottom of the sensor receiving recess 11A are terminal fittings at the 3 o'clock, 6 o'clock and 9 o'clock positions respectively. A storage portion 11b for storing 16 is provided, and the terminal fitting 16 is inserted into each storage portion 11b in an inclined state as shown in FIG.

感知器ベース１１は、感知器の下側筐体壁（天井面取付け時に天井面側となる筐体壁）を構成するもので、感知部収納ケース１３が嵌合される円筒状の収容凹部１１Ａと、該収容凹部１１Ａの縁部に沿って鍔状に形成された取付けプレート部１１Ｂとからなる。そして、取付けプレート部１１Ｂには、予め建築物の天井面等に設置された取付け基台（図示省略）に、当該感知器１０をネジ止め固定するためのネジ挿通穴１１ａ（２箇所）が設けられている。また、感知器ベース１１の収容凹部１１Ａの底部には、上記取付け金具を用いて感知器ベース１１を建築物の天井平板に固定する場合に使用するネジを挿通するためのネジ挿通孔１１ｃ（２箇所）が設けられている。 The sensor base 11 constitutes the lower housing wall of the sensor (the housing wall that becomes the ceiling surface when the ceiling surface is attached), and a cylindrical housing recess 11A in which the sensor housing case 13 is fitted. And a mounting plate portion 11B formed like a bowl along the edge of the housing recess 11A. The mounting plate portion 11B is provided with screw insertion holes 11a (two locations) for fixing the sensor 10 with screws on a mounting base (not shown) previously installed on the ceiling surface of the building. It has been. In addition, a screw insertion hole 11c (2 for inserting a screw used when the sensor base 11 is fixed to a ceiling plate of a building using the mounting bracket is provided at the bottom of the housing recess 11A of the sensor base 11. Are provided).

端子金具１６は、図４（Ａ）に示すように、剛性を有する導電性材料からなる外殻端子板１６Ａと、該外殻端子板１６Ａ内に挿入された弾性を有する導電性材料からなる２重「く」の字状をなすバネ端子板１６Ｂとからなる。外殻端子板１６Ａは、図４（Ｂ）に示すように、筒状胴体部１６ａと該筒状胴体部１６ａの底壁から斜め上方へ延びるテール部１６ｂとからなり、図４（Ａ）に示すように、筒状胴体部１６ａ内にバネ端子板１６Ｂが若干弾性変形された状態で挿入され、その復元力で胴体部内に保持される。 As shown in FIG. 4 (A), the terminal fitting 16 has an outer shell terminal plate 16A made of a rigid conductive material, and 2 made of an elastic conductive material inserted into the outer shell terminal plate 16A. It consists of a spring terminal plate 16B having a heavy "ku" shape. As shown in FIG. 4B, the outer shell terminal plate 16A includes a cylindrical body portion 16a and a tail portion 16b extending obliquely upward from the bottom wall of the cylindrical body portion 16a. As shown, the spring terminal plate 16B is inserted into the cylindrical body 16a in a slightly elastically deformed state, and is held in the body by its restoring force.

外殻端子板１６Ａは、筒状胴体部１６ａの開口部の高さが開口部の幅と同程度の大きさとなるように形成されている。そのため、高さが幅よりも小さいものに比べて、外殻端子板１６Ａの筒状胴体部１６ａへのバネ端子板１６Ｂの挿入が簡単に行え、組み付け作業の効率が向上する。
また、筒状胴体部１６ａの底壁には、図４（Ｂ）に示すように、細孔１６ｃが形成されているとともに、筒状胴体部１６ａの底壁は側壁によりも前方へ突出し、底壁と側壁との境界にはスリット１６ｈが形成されている。さらに、筒状胴体部１６ａの上壁には、中央に、頭部側からテール部側へ向けてスリット１６ｄが形成されている。 The outer shell terminal plate 16A is formed such that the height of the opening of the cylindrical body portion 16a is approximately the same as the width of the opening. Therefore, as compared with the case where the height is smaller than the width, the spring terminal plate 16B can be easily inserted into the cylindrical body portion 16a of the outer shell terminal plate 16A, and the efficiency of the assembling work is improved.
Further, as shown in FIG. 4 (B), the bottom wall of the cylindrical body portion 16a is formed with pores 16c, and the bottom wall of the cylindrical body portion 16a protrudes further forward than the side wall. A slit 16h is formed at the boundary between the wall and the side wall. Furthermore, a slit 16d is formed at the center of the upper wall of the cylindrical body portion 16a from the head side to the tail portion side.

一方、バネ端子板１６Ｂの底壁には、図５（Ａ）に示すように、上記筒状胴体部１６ａの底壁の細孔１６ｃに係合可能に傾斜した突片１６ｅが形成されているとともに、中央に、スリット１６ｆ（図４（Ａ））が形成され、スリット１６ｆの下部奥部には上方へ向かって折曲された突起１６ｇが設けられている。細孔１６ｃに係合した状態で、突片１６ｅは、先端がバネ端子板１６Ｂの底壁外面から僅かに突出するように、バネ端子板１６Ｂの挿入方向と逆の方向へ下り傾斜して設けられている。 On the other hand, as shown in FIG. 5A, a protruding piece 16e is formed on the bottom wall of the spring terminal plate 16B so as to be able to engage with the pore 16c in the bottom wall of the cylindrical body portion 16a. In addition, a slit 16f (FIG. 4A) is formed at the center, and a protrusion 16g that is bent upward is provided at the lower back of the slit 16f. In a state where it is engaged with the pore 16c, the protruding piece 16e is provided so as to be inclined downward in the direction opposite to the insertion direction of the spring terminal plate 16B so that the tip slightly protrudes from the outer surface of the bottom wall of the spring terminal plate 16B. It has been.

また、筒状胴体部１６ａの上壁は、図５（Ａ）に示すように、バネ端子板１６Ｂの挿入側の開口の高さが奥部の高さよりも高くなるよう傾斜されている。これにより、筒状胴体部１６ａ内へのバネ端子板１６Ｂの挿入が容易に行なえるようになる。なお、筒状胴体部１６ａの上壁が傾斜されることで、収納されたバネ端子板１６Ｂが抜け易くなるが、図５（Ｂ）に示すように、バネ端子板１６Ｂの下面の突片１６ｅが細孔１６ｃと係合することによって、抜けを防止することができるようになっている。 Further, as shown in FIG. 5A, the upper wall of the cylindrical body portion 16a is inclined such that the height of the opening on the insertion side of the spring terminal plate 16B is higher than the depth of the inner portion. Thereby, the spring terminal plate 16B can be easily inserted into the cylindrical body portion 16a. In addition, although the accommodated spring terminal plate 16B can be easily removed by inclining the upper wall of the cylindrical body portion 16a, as shown in FIG. 5B, the protruding piece 16e on the lower surface of the spring terminal plate 16B. Is prevented from coming off by engaging with the pore 16c.

感知器ベース１１の各収納部１１ｂは、図３（Ｂ）に示すように、それぞれ逆Ｖ字状の窪み部を有し、窪み部を形成する外側傾斜壁１１ｄの中心には、図１（Ｂ）に示すように、スリット１１ｅが形成され、該スリット１１ｅ内にはベースの中央側の端部が自由端にされた弾性押圧片１１ｆが設けられている。そして、この弾性押圧片１１ｆは、図２に示すように、その背面（図では上面）が収納部１１ｂを構成する外側傾斜壁１１ｄの外面より突出するように形成されている。 As shown in FIG. 3 (B), each storage portion 11b of the sensor base 11 has an inverted V-shaped dent, and the center of the outer inclined wall 11d forming the dent is at the center of FIG. As shown in B), a slit 11e is formed, and an elastic pressing piece 11f having a free end at the center side of the base is provided in the slit 11e. As shown in FIG. 2, the elastic pressing piece 11f is formed such that its back surface (upper surface in the figure) protrudes from the outer surface of the outer inclined wall 11d constituting the storage portion 11b.

また、押圧片１１ｆの内側は、上記外殻端子板１６Ａのスリット１６ｄ内に入り込んでバネ端子板１６Ｂのスリット１６ｆの両側の接触片１６ｉ1，１６ｉ2（図４（Ａ））のスリット寄りの縁部に当接可能にされており、弾性押圧片１１ｆの背面を外側から内側方向へ押圧すると弾性変形を起こして窪み部内部へ進入しバネ端子板１６Ｂの接触片１６ｉ1，１６ｉ2を押圧して変形させることができるように構成されている。挿入された電線の先端はこの接触片１６ｉ1，１６ｉ2と外殻端子板１６Ａの上壁内面との間に挟持される。 Further, the inner side of the pressing piece 11f enters the slit 16d of the outer shell terminal plate 16A, and the edge portion near the slit of the contact pieces 16i1, 16i2 (FIG. 4A) on both sides of the slit 16f of the spring terminal plate 16B. When the back surface of the elastic pressing piece 11f is pressed from the outside to the inside direction, the elastic pressing piece 11f is elastically deformed to enter the inside of the depression and press and deform the contact pieces 16i1 and 16i2 of the spring terminal plate 16B. It is configured to be able to. The tip of the inserted electric wire is sandwiched between the contact pieces 16i1, 16i2 and the inner surface of the upper wall of the outer shell terminal plate 16A.

また、図１（Ｂ）及び図３（Ｂ）に示すように、収納部１１ｂの窪み部を形成する内側傾斜壁１１ｇには、端子金具１６を構成する外殻端子板１６Ａの底壁先端の突出端部１６ｊ（図４(Ｂ)）を係止可能な係止部１１ｉが形成されている。
さらに、図１（Ｂ）及び図３（Ｂ）に示すように、収納部１１ｂを構成する内側傾斜壁１１ｇの底部側には、建造物に配設されたビニール絶縁電線のような電線の端部を外部より挿入するための一対の細穴１１ｈが、外側傾斜壁１１ｄと平行となるように形成されている。また、上記係止部１１ｉ（図１(Ａ)）には、図３（Ａ）に示すように、係合された突出端部１６ｊを抜けにくくするため先端に爪を有する係止片１１ｎが、内側傾斜壁１１ｇに形成された開口部内に、感知器ベース１１の底壁側から内側傾斜壁１１ｇと外側傾斜壁１１ｄとの結合部へ向かって立設されている。 Further, as shown in FIGS. 1 (B) and 3 (B), the inner inclined wall 11g forming the hollow portion of the storage portion 11b has a bottom wall tip of the outer shell terminal plate 16A constituting the terminal fitting 16 at the end. A locking portion 11i capable of locking the protruding end portion 16j (FIG. 4B) is formed.
Further, as shown in FIGS. 1 (B) and 3 (B), on the bottom side of the inner inclined wall 11g constituting the storage portion 11b, there is an end of an electric wire such as a vinyl insulated wire arranged in the building. A pair of narrow holes 11h for inserting the portion from the outside are formed so as to be parallel to the outer inclined wall 11d. Further, as shown in FIG. 3 (A), the locking portion 11i (FIG. 1 (A)) has a locking piece 11n having a claw at the tip to make it difficult to pull out the engaged protruding end portion 16j. In the opening formed in the inner inclined wall 11g, the sensor base 11 is erected from the bottom wall side toward the coupling portion between the inner inclined wall 11g and the outer inclined wall 11d.

また、図１（Ａ）及び図３（Ａ）に示すように、収容凹部１１Ａの外周壁には、外殻端子板１６Ａのテール部１６ｂの後端が係合される係合凹部１１ｋが形成されている。端子金具１６は、外殻端子板１６Ａの突出端部１６ｊが上記係止部１１ｉに係合されることで係止片１１ｎによって収納部１１ｂ内に保持される。さらに、外殻端子板１６Ａのテール部１６ｂが上記係合凹部１１ｋに係合されることで、前述のように、感知部収納ケース１３を感知器ベース１１に回転操作によって装着する際、つまり結合金具１７（図６参照）と端子金具１６とが噛み合って結合される際に発生する端子金具１６に加わる回転方向の力を抑制し、端子金具１６が収納部１１ｂから外れるのを防止することができ、より強固に保持されるようになっている。なお、図３（Ｂ）において、符号Ｓで示されている隙間が、結合金具１７が挿入され外殻端子板１６Ａのテール部１６ｂと噛み合うための空間である。 Further, as shown in FIGS. 1 (A) and 3 (A), an engagement recess 11k is formed on the outer peripheral wall of the housing recess 11A to engage the rear end of the tail portion 16b of the outer shell terminal plate 16A. Has been. The terminal fitting 16 is held in the storage portion 11b by the locking piece 11n when the protruding end portion 16j of the outer shell terminal plate 16A is engaged with the locking portion 11i. Further, the tail portion 16b of the outer shell terminal plate 16A is engaged with the engaging recess 11k, so that the sensor case 11 is attached to the sensor base 11 by rotating operation as described above, that is, coupled. It is possible to suppress the rotational force applied to the terminal fitting 16 that is generated when the fitting 17 (see FIG. 6) and the terminal fitting 16 are engaged and coupled to each other, thereby preventing the terminal fitting 16 from being detached from the storage portion 11b. Can be held more firmly. In FIG. 3B, a gap indicated by a symbol S is a space for inserting the fitting 17 and engaging with the tail portion 16b of the outer shell terminal plate 16A.

上記のように、外殻端子板１６Ａは、前端と後端の２カ所で係止され収納部１１ｂ内に保持される。しかも、外殻端子板１６Ａの長さが、上記係合凹部１１ｋから係止片１１ｎの先端までの距離よりも僅かに長くなるように形成されており、外殻端子板１６Ａを収納部１１ｂ内へ挿入する際に、係止片１１ｎを弾性変形させるようになっている。そのため、外殻端子板１６Ａは、係止片１１ｎの弾性復元力で挟持され容易に収納部１１ｂ内から抜け落ちることがない。つまり、本実施形態においては、端子金具を、その先端と後端の両方で係止する構成であるため、ネジも工具も使用せずに端子金具を感知器ベースの底壁に設けた窪み部内に取り付けることができ、取り付け作業が簡単に行える。 As described above, the outer shell terminal plate 16A is locked in two places, the front end and the rear end, and is held in the storage portion 11b. In addition, the length of the outer shell terminal plate 16A is formed to be slightly longer than the distance from the engagement recess 11k to the tip of the locking piece 11n, and the outer shell terminal plate 16A is placed in the storage portion 11b. At the time of insertion, the locking piece 11n is elastically deformed. Therefore, the outer shell terminal plate 16A is sandwiched by the elastic restoring force of the locking piece 11n and does not easily fall out of the storage portion 11b. That is, in this embodiment, since the terminal fitting is configured to be locked at both the front end and the rear end, the terminal fitting is provided in the recess portion provided on the bottom wall of the sensor base without using screws or tools. It can be attached to and can be easily attached.

また、ネジが不要であるため部品点数が減少し、感知器ベースもしくは収納ケースの小型化が可能となるとともに、組立て工数が減り、製造コストも削減できる。
さらに、上記実施例の感知器ベースの構造では、１工程の金型による樹脂成形（スライドなし）で上述全ての端子金具収納パーツ（収納部１１ｂ、係止片１１ｎ、弾性押圧片１１ｆ(リリースボタン)等）を制作することができ、製造コストを削減することができる。 In addition, since no screws are required, the number of parts is reduced, the sensor base or the storage case can be downsized, the number of assembling steps can be reduced, and the manufacturing cost can be reduced.
Further, in the structure of the sensor base of the above embodiment, all the above-mentioned terminal metal fitting storage parts (storage part 11b, locking piece 11n, elastic pressing piece 11f (release button) are formed by resin molding (no slide) using a single-step mold. ) Etc.) can be produced, and the manufacturing cost can be reduced.

なお、上記のように、収納部１１ｂの窪み部を形成する内側傾斜壁１１ｇに電線の端部を外部より挿入するために一対の細穴１１ｈをそれぞれ形成しているのは、建造物に配設されている電線を途中で切断して生じた２つの電線端部をそれぞれ上記一対の細穴１１ｈより挿入して、端子金具１６にて電気的に接続させることで、一方を導入線、他方を導出線として機能させるためである。これにより、切断された電線間の導通を維持したまま信号や電力を当該感知器内部に取り込むことができる。 In addition, as described above, a pair of narrow holes 11h are formed in the inner inclined wall 11g that forms the recess of the storage portion 11b in order to insert the ends of the electric wires from the outside. Two electric wire end portions generated by cutting an installed electric wire in the middle are respectively inserted from the pair of narrow holes 11h and electrically connected by the terminal fitting 16, so that one is an introduction line and the other Is to function as a derived line. Thereby, a signal and electric power can be taken in the said detector, maintaining the conduction | electrical_connection between the cut | disconnected electric wires.

次に、細穴１１ｈより挿入された電線端部の端子金具１６による結合について説明する。
前述したように、端子金具１６は、筒状の胴体部を有する外殻端子板１６Ａと、該外殻端子板１６Ａ内に挿入された２重「く」の字状のバネ端子板１６Ｂとからなり、外殻端子板１６Ａの胴体部１６ａの上壁内面とバネ端子板１６Ｂのスリット１６ｆの両側の接触片１６ｉ1，１６ｉ2（図４(Ａ)参照）との接合部が、上記一対の電線挿入用の細穴１１ｈに対向する位置に来るように構成されている。 Next, the connection by the terminal metal fitting 16 at the end of the electric wire inserted from the narrow hole 11h will be described.
As described above, the terminal fitting 16 includes the outer shell terminal plate 16A having a cylindrical body portion and the double “<”-shaped spring terminal plate 16B inserted into the outer shell terminal plate 16A. Thus, the joint portion between the inner surface of the upper wall of the body portion 16a of the outer shell terminal plate 16A and the contact pieces 16i1 and 16i2 (see FIG. 4A) on both sides of the slit 16f of the spring terminal plate 16B is inserted into the pair of electric wires. It is comprised so that it may come to the position which opposes the thin hole 11h for use.

そのため、図３（Ｂ）において矢印で示すように、上記収納部１１ｂに結合部近傍に設けられている細穴１１ｈより電線の端部を挿入すると、電線の先端はバネ端子板１６Ｂの接触片１６ｉ1，１６ｉ2を変形させながら、外殻端子板１６Ａの上壁内面との間に入り込んで行く。その結果、挿入された電線端部は、バネ端子板１６Ｂの弾性復元力によって、外殻端子板１６Ａの上壁内面とバネ端子板１６Ｂの両側の接触片１６ｉ1，１６ｉ2との間にしっかりと挟持され、外側方向へ引っ張ったとしても簡単には抜けないようになる。 Therefore, as shown by an arrow in FIG. 3B, when the end of the electric wire is inserted into the accommodating portion 11b through the narrow hole 11h provided in the vicinity of the coupling portion, the end of the electric wire becomes the contact piece of the spring terminal plate 16B. While deforming 16i1 and 16i2, it penetrates into the upper wall inner surface of the outer shell terminal plate 16A. As a result, the inserted wire end is firmly held between the inner surface of the upper wall of the outer shell terminal plate 16A and the contact pieces 16i1, 16i2 on both sides of the spring terminal plate 16B by the elastic restoring force of the spring terminal plate 16B. Even if pulled outward, it will not come out easily.

一方、前述したように、収納部１１ｂの窪み部を形成する外側傾斜壁１１ｄには弾性押圧片１１ｆが設けられており、端子金具１６が収納部１１ｂに収納された状態では、この弾性押圧片１１ｆの先端が外殻端子板１６Ａのスリット１６ｄ内に進入してバネ端子板１６Ｂの接触片１６ｉ1，１６ｉ2のスリット寄りの縁部に接触するようになっている。また、電線の先端は、各接触片１６ｉ1，１６ｉ2の先端部に接触される。そのため、弾性押圧片１１ｆを外側から内側へ押し込むと、バネ端子板１６Ｂが変形して外殻端子板１６Ａの上壁内面との間の隙間を広げる。その結果、電線を外側方向へ引っ張ると容易に電線端部を引き抜くことができるようになる。 On the other hand, as described above, the outer inclined wall 11d that forms the recess of the storage portion 11b is provided with the elastic pressing piece 11f, and in the state where the terminal fitting 16 is stored in the storage portion 11b, this elastic pressing piece. The tip of 11f enters the slit 16d of the outer shell terminal plate 16A and comes into contact with the edge portions of the spring terminal plate 16B near the slits of the contact pieces 16i1, 16i2. The tip of the electric wire is brought into contact with the tip of each contact piece 16i1, 16i2. Therefore, when the elastic pressing piece 11f is pushed in from the outside to the inside, the spring terminal plate 16B is deformed to widen the gap between the inner surface of the upper wall of the outer shell terminal plate 16A. As a result, when the electric wire is pulled outward, the end portion of the electric wire can be easily pulled out.

また、バネ端子板１６Ｂが、２重「く」の字状をなすように形成されているため、バネ端子板１６Ｂの筒状胴体部１６ａに収納された際に、単なる「く」の字状のものに比べて、バネ端子板１６Ｂの内壁面との接触箇所が多くなり、姿勢の安定性が向上する。また、筒状胴体部１６ａの底壁の細孔１６ｃに係合可能な突片１６ｅが形成されているため、筒状胴体部１６ａ内へ収納されたバネ端子板１６Ｂが抜けにくくなる。 Further, since the spring terminal plate 16B is formed in a double “<” shape, when it is stored in the cylindrical body portion 16 a of the spring terminal plate 16 </ b> B, a simple “<” shape. Compared to the above, the number of contact points with the inner wall surface of the spring terminal plate 16B increases, and the stability of the posture is improved. Moreover, since the protrusion 16e which can be engaged with the pore 16c of the bottom wall of the cylindrical trunk | drum 16a is formed, the spring terminal board 16B accommodated in the cylindrical trunk | drum 16a becomes difficult to remove.

さらに、バネ端子板１６Ｂには長さ方向すなわち挿入方向に沿ったスリット１６ｆが形成され、スリット１６ｆの奥部にバネ端子板１６Ｂの内側（図では上方）へ向かって折曲された突起１６ｇが設けられているため、バネ端子板１６Ｂを筒状胴体部１６ａへ挿入する際に、この突起１６ｇにマイナスドライバなどの工具の先端を当てて押し込むことで組み付けが容易となる。また、突起１６ｇをラジオペンチ等の工具で挟持することで、組み付けや分解の作業を容易に行うことも可能である。 Further, the spring terminal plate 16B is formed with a slit 16f along the length direction, that is, the insertion direction, and a protrusion 16g bent toward the inside (upward in the drawing) of the spring terminal plate 16B is formed at the back of the slit 16f. Therefore, when the spring terminal plate 16B is inserted into the cylindrical body portion 16a, assembly is facilitated by pressing the tip of a tool such as a flat-blade screwdriver against the projection 16g. Further, by assembling the protrusion 16g with a tool such as radio pliers, it is possible to easily perform assembly and disassembly work.

次に、本実施形態の感知器ベースを用いた感知器の取付けの仕方について、図６を用いて説明する。図６は本発明に係る感知器ベースによって取り付けられる感知器の一例としての光電式煙感知器を示す分解斜視図である。
光電式煙感知器は火災に伴い発生した煙を感知可能であり、建造物の天井平板などに設置されて使用されるように構成されている。なお、図６の説明では、感知器１０を建造物の天井面に設置した状態で下になる側を上側、下になる側を上側とする。 Next, how to attach a sensor using the sensor base of this embodiment will be described with reference to FIG. FIG. 6 is an exploded perspective view showing a photoelectric smoke sensor as an example of a sensor attached by a sensor base according to the present invention.
The photoelectric smoke detector can detect smoke generated by a fire and is configured to be used by being installed on a ceiling plate of a building. In the description of FIG. 6, the lower side is the upper side and the lower side is the upper side when the sensor 10 is installed on the ceiling surface of the building.

感知器１０は、図６に示すように、建造物の天井平板などに形成された開口部に嵌合される感知器ベース１１と、外形が略ドーム状をなし前記感知器ベース１１の上側全体を覆うように感知器ベース１１に接合されるヘッドカバー１２と、前記感知器ベース１１とヘッドカバー１２とにより形成される内部空間に収納される感知部収納ケース１３および該収納ケース１３に収納される煙感知部４０とを備える。感知器ベース１１とヘッドカバー１２および収納ケース１３は、合成樹脂で形成されている。上記感知器ベース１１とヘッドカバー１２とにより感知器の筐体が構成される。 As shown in FIG. 6, the sensor 10 includes a sensor base 11 fitted in an opening formed in a ceiling plate of a building, etc., and an outer shape of the sensor base 11 having a substantially dome shape and the entire upper side of the sensor base 11. A head cover 12 joined to the sensor base 11 so as to cover the sensor, a sensor storage case 13 stored in an internal space formed by the sensor base 11 and the head cover 12, and smoke stored in the storage case 13 And a sensing unit 40. The sensor base 11, the head cover 12, and the storage case 13 are made of synthetic resin. The sensor base 11 and the head cover 12 constitute a sensor housing.

本実施形態の感知器１０は、取付けプレート部１１Ｂのネジ挿通穴１１ａを利用したネジ止め、またはネジ挿通孔１１ｃと取付け金具を利用したネジ止めの何れかにより建造物の壁面への取付けが選択的に行える。
また、感知部収納ケース１３の底壁下面の上記収納部１１ｂに対応する位置には、端子金具１６と係合することで感知部収納ケース１３を感知器ベース１１に固定するとともに煙感知部４０と端子金具１６の電気的接続を図るため結合金具１７（３箇所）が設けられている。 The sensor 10 of the present embodiment is selected to be mounted on the wall surface of the building by either screwing using the screw insertion hole 11a of the mounting plate portion 11B or screwing using the screw insertion hole 11c and the mounting bracket. Can be done.
In addition, the sensor housing case 13 is fixed to the sensor base 11 by engaging with the terminal fitting 16 at a position corresponding to the housing portion 11b on the lower surface of the bottom wall of the sensor housing case 13 and the smoke sensing portion 40. In order to electrically connect the terminal fitting 16 and the coupling fitting 17 (three places) are provided.

感知部収納ケース１３は、その結合金具１７の先端を端子金具１６の側部に合わせるようにして感知器ベース１１の収容凹部１１Ａに嵌合させた後、回転させると、結合金具１７と端子金具１６とが噛み合って結合状態が保持されるように構成されている。
そのため、感知部収納ケース１３と感知器ベース１１との結合が簡単に行えるとともに、収納ケース内部の煙感知部４０の回路基板４１に設けられた接続用端子と感知器ベース１１側の端子金具との電気的な接続も簡単に行える。 When the sensor housing case 13 is fitted into the housing recess 11A of the sensor base 11 so that the tip of the joint metal fitting 17 is aligned with the side part of the terminal metal fitting 16, the joint metal fitting 17 and the terminal metal fitting are rotated. 16 is configured to be engaged with each other so that the coupled state is maintained.
Therefore, the detection unit storage case 13 and the sensor base 11 can be easily coupled, and the connection terminals provided on the circuit board 41 of the smoke detection unit 40 inside the storage case and the terminal fittings on the sensor base 11 side are provided. The electrical connection can be easily done.

なお、煙感知部４０は、前記感知部収納ケース１３に収納される回路基板４１と、該回路基板４１に搭載される高さの低い有底円筒状の暗箱基台４２と、該暗箱基台４２の内壁と係合する同じく円筒状の防虫網４４と、該防虫網４４を挟んで前記暗箱基台４２と係合し暗箱を形成する有底円筒状の暗箱ケース４３とを備える。防虫網４４は、小さな網目を有する円筒状に形成されている。 The smoke detection unit 40 includes a circuit board 41 stored in the detection unit storage case 13, a bottomed cylindrical dark box base 42 mounted on the circuit board 41, and the dark box base. A cylindrical insect screen 44 that engages with the inner wall of 42, and a bottomed cylindrical dark box case 43 that engages with the dark box base 42 with the insect screen 44 interposed therebetween to form a dark box. The insect screen 44 is formed in a cylindrical shape having a small mesh.

また、回路基板４１は、表面や内部にプリント配線（図示省略）が施され、上面および下面に検出回路を構成する素子（トランジスタ、抵抗、容量）やＩＣ（半導体集積回路）などの電子部品が実装されたプリント配線基板により構成され、回路基板４１の下面に突設された接続ピン（図示省略）が、感知部収納ケース１３内の結合金具１７に半田付けされることで感知部収納ケース１３に固定されるようになっている。 The circuit board 41 has printed wiring (not shown) on the surface and inside, and electronic components such as elements (transistors, resistors, capacitors) and ICs (semiconductor integrated circuits) constituting a detection circuit on the upper and lower surfaces. A connection pin (not shown) configured by a printed wiring board mounted and projecting from the lower surface of the circuit board 41 is soldered to the coupling metal member 17 in the detection unit storage case 13, whereby the detection unit storage case 13. It is supposed to be fixed to.

上記のように構成された本実施形態の感知器ベースによれば、予め感知器ベース（１１）を取付けネジにより天井平板等に固定しておいて、後から感知部を収納する収納ケース（１３）とカバー部材（１２）を装着することができる。そのため、取付けネジが外部から見えないようになり、取付け状態の美観が向上する。また、感知器ベースへの収納ケースとカバー部材を装着によって、収納ケース内部の感知部と感知器ベース側の端子金具（１６）との電気的な接続が同時に行われるため、作業性が向上する。 According to the sensor base of the present embodiment configured as described above, the sensor base (11) is fixed to the ceiling flat plate or the like with mounting screws in advance, and the storage case (13 ) And a cover member (12). For this reason, the mounting screw is not visible from the outside, and the aesthetic appearance of the mounting state is improved. Further, by attaching the storage case and the cover member to the sensor base, the electrical connection between the sensor inside the storage case and the terminal fitting (16) on the sensor base side is performed at the same time, thereby improving workability. .

以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されず適宜変更可能である。例えば、上記実施形態では、バネ端子板１６Ｂを、２重「く」の字状に形成しているが、単に「く」の字状に形成されたものを使用しても良い。
また、上記実施形態では、本発明を主として熱や煙、ガス等を感知する感知器に適用したものについて説明したが、本発明は、ビーコンや無線ＬＡＮルーター等の通信機器を建造物の内壁に取り付けるためのベースなどにも適用することができる。
また、本発明の一部の実施形態（外殻端子板１６Ａとバネ端子板１６Ｂの構造）は、スピーカー等の電子機器にコードやケーブルを接続するための接続具に利用することができる。 As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, It can change suitably. For example, in the above-described embodiment, the spring terminal plate 16B is formed in a double “<” shape, but may be formed simply in a “<” shape.
In the above embodiment, the present invention is mainly applied to a sensor that senses heat, smoke, gas, etc., but the present invention provides communication equipment such as a beacon and a wireless LAN router on the inner wall of a building. It can also be applied to a base for mounting.
Also, some embodiments of the present invention (the structure of the outer shell terminal plate 16A and the spring terminal plate 16B) can be used as a connection tool for connecting a cord or cable to an electronic device such as a speaker.

１０感知器
１１感知器ベース（ベース部材）
１１Ａ感知器収容凹部
１１ｆ弾性押圧片
１１ｋ係合凹部
１１ｈ細穴（電線端部挿入穴）
１１ｎ係止片
１３感知部収納ケース
１６端子金具
１６Ａ外殻端子板
１６Ｂバネ端子板
１６ａ胴体部
１６ｂテール部
１６ｃ細孔
１６ｅ突片
１６ｆスリット
１６ｇ突起 10 Sensor 11 Sensor base (base member)
11A Sensor receiving recess 11f Elastic pressing piece 11k Engaging recess 11h Narrow hole (wire end insertion hole)
11n Locking piece 13 Sensing portion storage case 16 Terminal fitting 16A Outer shell terminal plate 16B Spring terminal plate 16a Body portion 16b Tail portion 16c Pore 16e Projection piece 16f Slit 16g Protrusion

Claims

A base member provided with a recess for accommodating a terminal fitting in an engageable manner on the inner surface side of the bottom wall forming a sensor receiving recess into which the sensor can be fitted;
An outer shell terminal plate having a cylindrical body portion and a tail portion formed so as to extend from a part of the body portion, and a spring of “<” shape housed in the body portion of the outer shell terminal plate A terminal fitting made of a terminal plate and housed in the recess,
An elastic locking piece capable of locking the front end of the outer shell terminal plate is formed in the recess, and the tail portion on the rear end side of the outer shell terminal plate is formed on the wall body forming the sensor receiving recess. A locking part capable of locking the end of the is formed,
The terminal fitting is formed with a length shorter than the distance from the elastic locking piece to the locking portion, and when the terminal fitting is housed in the recess, the locking force is restored by the restoring force of the elastic locking piece. Configured to be sandwiched between
3. A sensor base according to claim 1, wherein the wall forming the depression is provided with a wire end insertion hole extending from the inside of the depression to the bottom wall of the base member.

2. The spring terminal plate is formed with an inclined projecting piece, and the outer shell terminal plate is formed with a fine hole engageable with the projecting piece of the spring terminal plate. Sensor base.

2. The spring terminal plate is formed with a slit in the insertion direction at the center, and a protrusion protruding toward the inside of the spring terminal plate is provided at an edge of the slit. Or the sensor base according to 2.

The outer shell terminal plate is provided with a rectangular opening on the insertion side of the spring terminal plate of the tubular body part, and the height of the opening part is higher than the height of the inner part of the body part. The sensor base according to claim 1, wherein a wall surface of the body portion is inclined.

The indented portion has an outer inclined wall and an inner inclined wall, one end of which is continuous with each other,
The elastic locking piece is erected in an opening formed in the inner inclined wall toward a coupling portion between the outer inclined wall and the inner inclined wall,
The wire end insertion hole is provided in the vicinity of the coupling portion between the inner inclined wall and the outer inclined wall so as to be parallel to the outer inclined wall,
A slit is formed in the outer inclined wall, and an elastic pressing piece having a portion located in the slit and projecting from the outer surface of the bottom wall of the sensor base is provided,
The elastic pressing piece moves inward when the protruding portion is pressed from the outside, deforms the spring terminal plate, and creates a gap between the outer shell terminal plate and the spring terminal plate. The sensor base according to claim 1, wherein the sensor base is configured.