JPH08339486A - Sensor and its attachment and detachment tool - Google Patents
Sensor and its attachment and detachment toolInfo
- Publication number
- JPH08339486A JPH08339486A JP14340495A JP14340495A JPH08339486A JP H08339486 A JPH08339486 A JP H08339486A JP 14340495 A JP14340495 A JP 14340495A JP 14340495 A JP14340495 A JP 14340495A JP H08339486 A JPH08339486 A JP H08339486A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- sensor body
- base
- attachment
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、感知器と感知器を取り
付け取り外すための着脱工具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor and a detachable tool for attaching and detaching the sensor.
【０００２】[0002]
【従来の技術】従来の感知器及び着脱工具を図２〜図６
を用いて説明する。図２は、従来の感知器の斜視図であ
る。図３は、従来の感知器を示す図であり、図３（ａ）
は側面図、図３（ｂ）は図３（ｂ）に示すＡ−Ａの断面
図である。図４は、感知器本体のベースへの取り付けの
他の例を説明する斜視図である。図５は、感知器本体の
取り付けを説明する側面図である。図６は、感知器本体
の取り付けの他の例を説明する斜視図である。2. Description of the Related Art A conventional sensor and a detachable tool are shown in FIGS.
Will be explained. FIG. 2 is a perspective view of a conventional sensor. FIG. 3 is a diagram showing a conventional sensor, and FIG.
Is a side view, and FIG. 3B is a cross-sectional view taken along the line AA shown in FIG. FIG. 4 is a perspective view illustrating another example of attachment of the sensor body to the base. FIG. 5: is a side view explaining attachment of a sensor main body. FIG. 6 is a perspective view illustrating another example of attachment of the sensor body.
【０００３】従来、火災感知器などの天井に取り付けら
れる感知器は、感知器の点検や交換を行うために、天井
から取り外しが可能な構造となっている。即ち、感知器
は、図２、図３に示すように、天井面に固着されるベー
ス１と、ベースに取り付ける感知器本体２とから構成さ
れている。Conventionally, a detector such as a fire detector attached to the ceiling has a structure that can be removed from the ceiling in order to inspect or replace the detector. That is, as shown in FIGS. 2 and 3, the sensor includes a base 1 fixed to the ceiling surface and a sensor body 2 attached to the base.
【０００４】ベース１は、円筒体であり、上面が天井と
接し、下面が感知器本体２と接する。ベース１の外側面
は、ねじ切りされている。The base 1 is a cylinder whose upper surface contacts the ceiling and whose lower surface contacts the sensor body 2. The outer surface of the base 1 is threaded.
【０００５】感知器本体２は、温度や煙などを感知する
センサが収納されており、取り付けの方向性を無くする
ため、また、デザイン面の理由から、断面Ａ−Ａが円形
状に形成されている。感知器本体２は、取り付けたとき
に天井側となってベース１と接する上面に、ベース１の
外側面のねじ切り部分と同一形状、同径の凹部２ａを有
し、凹部２ａの内側面はねじ切りされている。The sensor main body 2 accommodates a sensor for detecting temperature, smoke, etc., so as to eliminate the directionality of mounting, and for design reasons, the cross section AA is formed in a circular shape. ing. The sensor body 2 has a recessed portion 2a having the same shape and diameter as the threaded portion of the outer surface of the base 1 on the upper surface that comes into contact with the base 1 when mounted on the ceiling side, and the inner surface of the recessed portion 2a is threaded. Has been done.
【０００６】感知器本体２を取り付ける場合には、予め
天井に固着されたベース１のねじ切り部分と、感知器本
体２のねじ切り部分とを螺合することにより、感知器本
体２を天井に取り付ける。When the sensor body 2 is attached, the sensor body 2 is attached to the ceiling by screwing the threaded portion of the base 1 and the threaded portion of the sensor body 2 which are previously fixed to the ceiling.
【０００７】また他の感知器にあっては、図４に示すよ
うに、ベース１に、ベース１の回転方向に長穴１ａと、
長穴１ａの一端にやや大きな穴である挿入穴１ｂとを複
数設け、一方感知器本体２の上面に掛け爪のある係止片
２ｂを複数設けて、ベース１の挿入穴１ｂに感知器本体
２の係止片２ｂを挿入した後に、感知器本体２を回転さ
せて係止することにより、感知器本体２を天井に取り付
けるものもある。In another sensor, as shown in FIG. 4, a base 1 is provided with an elongated hole 1a in the rotating direction of the base 1,
A plurality of insertion holes 1b, which are slightly larger holes, are provided at one end of the elongated hole 1a, and a plurality of locking pieces 2b having hooks are provided on the upper surface of the sensor body 2, and the sensor body is inserted in the insertion hole 1b of the base 1. There is also one in which the sensor body 2 is mounted on the ceiling by inserting the locking piece 2b of 2 and then locking the sensor body 2 by rotating it.
【０００８】次に、感知器本体２のベース１への取り付
け方法および取り外し方法について説明する。感知器は
人の手の届かないところに取り付けるため、該取り付け
取り外し作業には、図５に示す着脱工具３を用いる。Next, a method of attaching and detaching the sensor body 2 to the base 1 will be described. Since the sensor is attached to a place out of reach of people, the attachment / detachment tool 3 shown in FIG. 5 is used for the attachment / detachment work.
【０００９】着脱工具３は、支持部３ａと棒体３ｂとか
ら構成されており、支持部３ａはゴムなどの摩擦の大き
い部材で形成された凹部３ｃを有しており、支持部３ａ
の凹部３ｃに感知器本体２が嵌入するようになってい
る。棒体３ｂの一端に支持部３ａが設けられており、他
端は作業者が握る部分となる。The attachment / detachment tool 3 comprises a support portion 3a and a rod body 3b. The support portion 3a has a recess 3c formed of a member having a large friction such as rubber.
The main body 2 of the sensor is fitted in the concave portion 3c. The support portion 3a is provided at one end of the rod body 3b, and the other end is a portion gripped by an operator.
【００１０】まず、作業者は着脱工具３の凹部３ｃに感
知器本体２を嵌入する。このとき、棒体３ｂの作業者が
握る側を下方、棒体３ｂの支持部３ａが固着されている
側を上方とすると、感知器本体２を感知器本体２の上面
の凹部２ａあるいは係止片２ｂが上方側に位置するよう
に嵌入する。First, an operator inserts the sensor body 2 into the recess 3c of the detachable tool 3. At this time, assuming that the side of the rod body 3b gripped by the operator is the lower side and the side of the rod body 3b to which the support portion 3a is fixed is the upper side, the sensor body 2 is fixed to the recessed portion 2a on the upper surface of the sensor body 2 or locked. It inserts so that piece 2b may be located on the upper side.
【００１１】そして、作業者は、感知器本体２を嵌入し
た着脱工具３を持って、所望の取り付け位置に予め固着
されているベース１の下に立ち、着脱工具３を用いて着
脱工具３の支持部３ａに嵌入された感知器本体２を、ベ
ース１に当接させる。そして、ベース１に感知器本体２
を当接させた状態で、着脱工具３を棒体３ｂの長手方向
の軸回りに回転させる。支持部３ａは感知器本体２を摩
擦により保持しているので、感知器本体２は着脱工具３
の回転に従って回転し、ベース１に螺合あるいは係止さ
れる。Then, the operator holds the detachable tool 3 into which the sensor main body 2 is fitted, stands under the base 1 which is fixed in advance at a desired mounting position, and uses the detachable tool 3 to attach the detachable tool 3 to the detachable tool 3. The sensor body 2 fitted into the support portion 3a is brought into contact with the base 1. And the sensor body 2 on the base 1
In the state of being in contact with, the attachment / detachment tool 3 is rotated around the longitudinal axis of the rod 3b. Since the support portion 3a holds the sensor body 2 by friction, the sensor body 2 is attached to the detachable tool 3
It rotates according to the rotation of and is screwed or locked to the base 1.
【００１２】また、感知器本体２を天井から取り外す場
合、即ちベース１から取り外す場合は、以上に説明した
取り付けの手順と逆の手順を実行することにより行う。When the sensor main body 2 is removed from the ceiling, that is, when it is removed from the base 1, the procedure opposite to the above-described mounting procedure is performed.
【００１３】また、着脱工具３の支持部３ａを、図６に
示すように、複数の棒体３ｄで形成し、感知器本体２に
該棒体３ｄを挿入する挿入穴２ｃを設け、棒体３ｄを挿
入穴２ｃに挿入して、着脱工具３で感知器本体２を保持
し、該着脱工具３を用いて感知器本体２を取り付け取り
外す方法もある。Further, as shown in FIG. 6, the support portion 3a of the detachable tool 3 is formed of a plurality of rods 3d, and the sensor body 2 is provided with an insertion hole 2c for inserting the rods 3d. There is also a method of inserting 3d into the insertion hole 2c, holding the sensor body 2 with the detachable tool 3, and attaching and detaching the sensor body 2 using the detachable tool 3.
【００１４】[0014]
【発明が解決しようとする課題】しかしながら、上述の
図２〜図６に示すような感知器本体２と着脱工具３とに
あっては、支持部３ａをゴムなどの摩擦の大きい部材で
形成した場合は、支持部３ａあるいは感知器本体２が埃
や油で汚れていると、支持部３ａが感知器本体２を保持
するのに十分な摩擦力を得ることができず、棒体３ｂを
回転させても着脱工具が空回りして、感知器本体２を回
転させることができないので、螺合あるいは係止でき
ず、従って、感知器本体２を天井に取り付けることがで
きないという問題点があり、一方、支持部３ａを棒体３
ｄで形成した場合には、埃や油の汚れがあっても感知器
本体２を天井に取り付けることはできるが、感知器本体
２に挿入穴２ｃを設けているため外観が悪いという問題
点があった。However, in the sensor main body 2 and the attachment / detachment tool 3 as shown in FIGS. 2 to 6 described above, the support portion 3a is formed of a member having a large friction such as rubber. In this case, if the support portion 3a or the sensor body 2 is contaminated with dust or oil, the support portion 3a cannot obtain sufficient frictional force to hold the sensor body 2 and the rod 3b is rotated. Even if it is done, the attachment / detachment tool idles and the sensor body 2 cannot be rotated, so that it cannot be screwed or locked, and therefore the sensor body 2 cannot be attached to the ceiling. , The support 3a to the rod 3
When the sensor body 2 is formed by d, the sensor body 2 can be attached to the ceiling even if it is contaminated with dust or oil, but since the sensor body 2 has the insertion hole 2c, the appearance is poor. there were.
【００１５】本発明は、上記問題点を改善するために成
されたもので、その目的とするところは、感知器本体に
埃や油の汚れがあっても感知器本体を天井に取り付ける
ことができ、また、外観上も見栄えの良い感知器および
感知器を天井から着脱するための着脱工具を提供するこ
とにある。The present invention has been made in order to solve the above problems, and an object of the present invention is to mount the sensor body on the ceiling even if the sensor body is contaminated with dust or oil. Another object of the present invention is to provide a sensor that can be mounted on the ceiling and that can be attached and detached from the ceiling.
【００１６】[0016]
【課題を解決するための手段】本発明は上記の問題を解
決するために、請求項１記載の発明にあっては、天井に
固着するベースと、回転させることによりベースに取り
付ける感知器本体とからなる感知器において、感知器本
体の取り付け取り外し時の回転軸に垂直な断面を非円形
にしたことを特徴とするものである。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a base fixed to a ceiling and a sensor main body which is mounted on the base by being rotated. In the sensor consisting of, the cross section perpendicular to the rotation axis when the sensor body is attached and detached is made non-circular.
【００１７】請求項２記載の発明にあっては、棒体と、
棒体の一端に延長位置側に向いて設けられて、凹部によ
り感知器本体を保持する支持部とを有する着脱工具にお
いて、支持部の凹部の断面を非円形にしたことを特徴と
するものである。According to the second aspect of the invention, a rod body,
In a detachable tool having a support portion that is provided at one end of the rod body toward the extension position side and holds the sensor body by the recess portion, the recess portion of the support portion has a non-circular cross section. is there.
【００１８】請求項３記載の発明にあっては、天井に固
着するベースと、回転させることによりベースに取り付
ける感知器本体とからなる感知器において、感知器本体
の取り付け取り外し時の回転軸に垂直な断面を楕円形に
したことを特徴とするものである。In a third aspect of the present invention, a sensor comprising a base fixed to the ceiling and a sensor body mounted on the base by rotating the sensor is perpendicular to the rotation axis when the sensor body is attached and detached. It is characterized by making the cross section oval.
【００１９】請求項４記載の発明にあっては、棒体と、
棒体の一端に延長位置側に向いて設けられて、凹部によ
り感知器本体を保持する支持部とを有する着脱工具にお
いて、支持部の凹部の断面を楕円形にしたことを特徴と
するものである。According to the invention of claim 4, a rod body,
In a detachable tool having a support portion which is provided at one end of the rod body toward the extension position side and holds the sensor body by the recess portion, the recess portion of the support portion has an oval cross section. is there.
【００２０】[0020]
【作用】以上のように構成したことにより、請求項１記
載の発明にあっては、感知器本体の取り付け取り外し時
の回転軸に垂直な断面を非円形にしたので、該断面と同
形状の断面を有する着脱工具の支持部の凹部に感知器本
体を嵌入し、感知器本体をベースに当接させて着脱工具
を回転させた場合、着脱工具のみが空回りすることがな
い。With the above construction, the invention according to claim 1 has a non-circular cross section perpendicular to the rotation axis when the sensor body is attached and detached. When the sensor main body is fitted into the recess of the support part of the detachable tool having a cross section and the sensor main body is brought into contact with the base to rotate the detachable tool, only the detachable tool does not idle.
【００２１】請求項２記載の発明にあっては、着脱工具
の支持部の凹部の断面を非円形にしたので、該断面と同
形状の断面を有する感知器本体を着脱工具の支持部の凹
部に感知器本体を嵌入し、感知器本体をベースに当接さ
せて着脱工具を回転させた場合、着脱工具のみが空回り
することがない。According to the second aspect of the present invention, since the cross section of the concave portion of the supporting portion of the detachable tool is made non-circular, the sensor main body having a cross section having the same shape as the cross section is formed into the concave portion of the supporting portion of the detachable tool. When the sensor main body is fitted in and the sensor main body is brought into contact with the base to rotate the detachable tool, only the detachable tool does not idle.
【００２２】請求項３記載の発明にあっては、感知器本
体の取り付け取り外し時の回転軸に垂直な断面を楕円形
にしたので、該断面と同形状の断面を有する着脱工具の
支持部の凹部に嵌入し、感知器本体をベースに当接させ
て着脱工具を回転させた場合、着脱工具のみが空回りす
ることがない。また、感知器本体の外形が楕円形である
ため、従来円形に形成されていた感知器と略同様の外観
を得ることができる。According to the third aspect of the present invention, since the cross section perpendicular to the rotation axis when the sensor body is attached and detached is formed into an elliptical shape, the support portion of the attachment / detachment tool having the same cross section as the cross section is formed. When the detachable tool is rotated by fitting it into the recess and bringing the sensor body into contact with the base, only the detachable tool does not idle. Further, since the outer shape of the sensor body is elliptical, it is possible to obtain an appearance that is substantially the same as that of the sensor that is conventionally formed in a circular shape.
【００２３】請求項４記載の発明にあっては、着脱工具
の支持部の凹部の断面を楕円形にしたので、該断面と同
形状の断面を有する感知器本体を着脱工具の支持部の凹
部に嵌入し、感知器本体をベースに当接させて着脱工具
を回転させた場合、着脱工具のみが空回りすることがな
い。In the invention according to claim 4, since the concave portion of the supporting portion of the detachable tool has an elliptical cross section, the sensor main body having the same cross section as the concave portion is formed in the concave portion of the supporting portion of the detachable tool. When the detachable tool is rotated with the sensor body abutting against the base, the detachable tool alone does not idle.
【００２４】[0024]
【実施例】本発明の実施例を図１を用いて説明する。図
１は 感知器本体をベースに着脱する様子を示す図であ
り、図１（ａ）は側面図、図１（ｂ）は図１（ａ）に示
すＢ−Ｂの断面図、図１（ｃ）は図１（ａ）に示すＣ−
Ｃの断面図である。なお、図１においては前述の従来の
技術で説明したところの感知器及び着脱工具と同等の箇
所には同じ符号を付してあるので、同等の箇所の詳細な
説明は省略する。EXAMPLE An example of the present invention will be described with reference to FIG. 1A and 1B are views showing how the sensor body is attached to and detached from the base. FIG. 1A is a side view, FIG. 1B is a cross-sectional view taken along the line BB shown in FIG. c) is C- shown in FIG.
It is sectional drawing of C. In FIG. 1, the same parts as those of the sensor and the attachment / detachment tool described in the above-mentioned conventional technique are designated by the same reference numerals, and detailed description of the same parts will be omitted.
【００２５】図１に示す本実施例の感知器及び着脱工具
とが、前述の従来の技術で説明したところの感知器及び
着脱工具と異なり特徴となるのは次の構成である。The sensor and the attachment / detachment tool of this embodiment shown in FIG. 1 are different from the sensor and the attachment / detachment tool described in the above-mentioned prior art, and have the following features.
【００２６】即ち、従来の技術において説明した感知器
本体２にあっては断面Ａ−Ａが円形状であった感知器本
体２の断面を、図１に示すように、短径と直径との比が
０．９の楕円形状に形成した点である。That is, in the sensor main body 2 described in the prior art, the cross section of the sensor main body 2 which has a circular cross section AA has a short diameter and a small diameter as shown in FIG. This is a point formed in an elliptical shape with a ratio of 0.9.
【００２７】そして、着脱工具３の支持部３ｅの凹部３
ｆは、凹部３ｆの断面Ｃ−Ｃを感知器本体２の断面Ｂ−
Ｂの形状と等しくし、且つ、感知器本体２を嵌入できる
ように、感知器本体２の断面Ｂ−Ｂより僅かに大きくさ
れている。Then, the concave portion 3 of the supporting portion 3e of the detachable tool 3
f is the cross section B-C of the sensor body 2 taken along the line C-C of the recess 3f.
The shape is equal to the shape of B, and is slightly larger than the cross section BB of the sensor body 2 so that the sensor body 2 can be fitted therein.
【００２８】以上のような感知器本体２を、予め天井等
に設けられたベース１に着脱工具３を用いて取り付け取
り外す作業について説明する。The operation of attaching and detaching the sensor body 2 as described above to the base 1 previously provided on the ceiling or the like using the attachment / detachment tool 3 will be described.
【００２９】まず、作業者は着脱工具３の凹部３ｆの楕
円形状と感知器本体２の楕円形状とを合わせて、凹部３
ｆに感知器本体２を嵌入する。First, the operator matches the oval shape of the concave portion 3f of the attachment / detachment tool 3 with the oval shape of the sensor body 2 to form the concave portion 3f.
Insert the sensor body 2 into f.
【００３０】そして、作業者は、感知器本体２を嵌入し
た着脱工具３を持って、所望の取り付け位置に予め固着
されているベース１の下に立ち、着脱工具３を用いて着
脱工具３の支持部３ｅに嵌入された感知器本体２を、ベ
ース１に当接させる。そして、ベース１に感知器本体２
を当接させた状態で、着脱工具３を棒体３ｂの長手方向
の軸回りに回転させる。支持部３ｅの凹部３ｆの断面Ｃ
−Ｃと感知器本体２の断面Ｂ−Ｂとが一致して嵌合され
ているので、空回りすることなく感知器本体２は着脱工
具３の回転に従って回転し、ベース１に螺合あるいは係
止される。Then, the operator holds the detachable tool 3 into which the sensor main body 2 is fitted, stands under the base 1 which is fixed in advance at a desired mounting position, and uses the detachable tool 3 to attach the detachable tool 3 to the detachable tool 3. The sensor body 2 fitted in the support portion 3e is brought into contact with the base 1. And the sensor body 2 on the base 1
In the state of being in contact with, the attachment / detachment tool 3 is rotated around the longitudinal axis of the rod 3b. Cross-section C of recess 3f of support 3e
Since -C and the cross section B-B of the sensor body 2 are fitted together, the sensor body 2 rotates according to the rotation of the attachment / detachment tool 3 without idling, and is screwed or locked to the base 1. To be done.
【００３１】また、感知器本体２を天井から取り外す場
合、即ちベース１から取り外す場合は、以上に説明した
取り付けの手順と逆の手順を実行することにより行う。When the sensor main body 2 is removed from the ceiling, that is, when it is removed from the base 1, the procedure opposite to the above-described mounting procedure is performed.
【００３２】なお、本実施例では、感知器本体２と支持
部３ｅの凹部３ｆとの断面形状を楕円形として説明した
が、該断面形状は非円形であれば良く、従って、多角形
や三角形の角を丸くしたおにぎり形などであってもよ
い。In the present embodiment, the cross-sectional shape of the sensor main body 2 and the recess 3f of the support portion 3e has been described as an elliptical shape, but the cross-sectional shape may be a non-circular shape, and therefore a polygonal shape or a triangular shape. It may be a rice ball shape with rounded corners.
【００３３】[0033]
【発明の効果】本発明の感知器及びその着脱工具は上述
のように構成してあるから、請求項１記載の発明にあっ
ては、感知器本体の取り付け取り外し時の回転軸に垂直
な断面を非円形にしたので、該断面と同形状の断面を有
する着脱工具の支持部の凹部に嵌入すれば、両者の断面
形状が等しいため、感知器本体をベースに当接させて着
脱工具を回転させた場合、着脱工具のみが空回りするこ
とがなく、従って感知器本体に埃や油の汚れがあっても
感知器本体を天井に取り付けることができ、また、感知
器本体に挿入穴を設ける必要もないので外観上も見栄え
の良い感知器を提供できるという効果を奏する。Since the sensor and the attachment / detachment tool for the same according to the present invention are configured as described above, in the invention according to claim 1, a cross section perpendicular to the rotation axis at the time of attachment and detachment of the sensor main body. Since it has a non-circular shape, if you insert it into the recess of the support part of the detachable tool that has the same cross section as the cross section, since the cross sectional shape of both is the same, the sensor body is brought into contact with the base to rotate the detachable tool. In this case, only the attachment / detachment tool does not run idle, so even if there is dirt or oil on the sensor body, the sensor body can be mounted on the ceiling, and it is necessary to provide an insertion hole in the sensor body. Since there is no such sensor, it is possible to provide a sensor that looks good in appearance.
【００３４】請求項２記載の発明にあっては、着脱工具
の支持部の凹部の断面を非円形にしたので、該断面と同
形状の断面を有する感知器本体を着脱工具の支持部の凹
部に嵌入すれば、両者の断面形状が等しいため、感知器
本体をベースに当接させて着脱工具を回転させた場合、
着脱工具のみが空回りすることがなく、従って感知器本
体に埃や油の汚れがあっても感知器本体を天井に取り付
けることができる着脱工具を提供できるという効果を奏
する。According to the second aspect of the invention, since the recess of the supporting portion of the detachable tool has a non-circular cross section, the sensor main body having a cross section having the same shape as the cross section is recessed in the supporting portion of the detachable tool. If the sensor tool body is brought into contact with the base and the attachment / detachment tool is rotated,
There is an effect that it is possible to provide a detachable tool that can attach the sensor body to the ceiling even if the sensor body is contaminated with dust or oil, since only the detachable tool does not idle.
【００３５】請求項３記載の発明にあっては、感知器本
体の取り付け取り外し時の回転軸に垂直な断面を楕円形
にしたので、該断面と同形状の断面を有する着脱工具の
支持部の凹部に嵌入すれば、両者の断面形状が等しいた
め、感知器本体をベースに当接させて着脱工具を回転さ
せた場合、着脱工具のみが空回りすることがなく、従っ
て感知器本体に埃や油の汚れがあっても感知器本体を天
井に取り付けることができ、また、感知器本体に挿入穴
を設ける必要もないので外観上も見栄えが良く、また、
感知器本体の外形が楕円形であるため、従来円形に形成
されていた感知器と略同様の外観を有する感知器を提供
できるという効果を奏する。According to the third aspect of the present invention, since the cross section perpendicular to the rotation axis when the sensor body is attached and detached is formed into an elliptical shape, the support part of the detachable tool having the same cross section as the cross section is formed. If they are fitted in the recesses, they have the same cross-sectional shape. Therefore, when the sensor body is brought into contact with the base and the detachable tool is rotated, only the detachable tool does not idle, and therefore dust or oil is not attached to the sensor body. The sensor body can be attached to the ceiling even if it is dirty, and there is no need to provide an insertion hole in the sensor body, so it looks good in appearance, and
Since the outer shape of the sensor body is elliptical, it is possible to provide a sensor having an appearance substantially similar to that of the sensor which is conventionally formed in a circular shape.
【００３６】請求項４記載の発明にあっては、着脱工具
の支持部の凹部の断面を楕円形にしたので、該断面と同
形状の断面を有する感知器本体を着脱工具の支持部の凹
部に嵌入すれば、両者の断面形状が等しいため、感知器
本体をベースに当接させて着脱工具を回転させた場合、
着脱工具のみが空回りすることがなく、従って感知器本
体に埃や油の汚れがあっても感知器本体を天井に取り付
けることができる着脱工具を提供できるという効果を奏
する。According to the invention of claim 4, since the cross section of the concave portion of the supporting portion of the detachable tool is elliptical, the sensor main body having the same cross section as the concave portion is formed in the concave portion of the supporting portion of the detachable tool. If the sensor tool body is brought into contact with the base and the attachment / detachment tool is rotated,
There is an effect that it is possible to provide a detachable tool that can attach the sensor body to the ceiling even if the sensor body is contaminated with dust or oil, since only the detachable tool does not idle.
【図１】本発明の感知器を本発明の着脱工具で着脱する
様子を示す図である。FIG. 1 is a view showing how a sensor of the present invention is attached and detached with a detaching tool of the present invention.
【図２】従来の感知器の斜視図である。FIG. 2 is a perspective view of a conventional sensor.
【図３】従来の感知器を示す図である。FIG. 3 is a diagram showing a conventional sensor.
【図４】感知器本体のベースへの取り付けの他の例を説
明する斜視図である。FIG. 4 is a perspective view illustrating another example of attachment of the sensor body to the base.
【図５】感知器本体のベースへの取り付けを説明する側
面図である。FIG. 5 is a side view illustrating attachment of the sensor body to the base.
【図６】感知器本体のベースへの取り付けの他の例を説
明する斜視図である。FIG. 6 is a perspective view illustrating another example of attachment of the sensor body to the base.
１ ベース ２ 感知器本体 ３ 着脱工具 ３ｂ 棒体 ３ｅ 支持部 ３ｆ 凹部 1 Base 2 Sensor Main Body 3 Attachment / Detachment Tool 3b Rod 3e Support 3f Recess
Claims (4)
とによりベースに取り付ける感知器本体とからなる感知
器において、感知器本体の取り付け取り外し時の回転軸
に垂直な断面を非円形にしたことを特徴とする感知器。1. A sensor comprising a base fixed to a ceiling and a sensor body attached to the base by rotating, wherein a cross section perpendicular to a rotation axis when the sensor body is attached and detached is made non-circular. Characteristic detector.
て設けられて、凹部により感知器本体を保持する支持部
とを有する着脱工具において、支持部の凹部の断面を非
円形にしたことを特徴とする着脱工具。2. A detachable tool having a rod body and a support portion which is provided at one end of the rod body toward the extension position side and holds the sensor main body by the recess portion, wherein the recess portion of the support portion has a non-circular cross section. A detachable tool that is characterized by
とによりベースに取り付ける感知器本体とからなる感知
器において、感知器本体の取り付け取り外し時の回転軸
に垂直な断面を楕円形にしたことを特徴とする感知器。3. A sensor comprising a base fixed to the ceiling and a sensor body mounted on the base by rotating the sensor body, wherein a cross section perpendicular to the axis of rotation when the sensor body is attached and detached has an elliptical shape. Characteristic detector.
て設けられて、凹部により感知器本体を保持する支持部
とを有する着脱工具において、支持部の凹部の断面を楕
円形にしたことを特徴とする着脱工具。4. A detachable tool having a rod body and a support portion which is provided at one end of the rod body toward the extension position side and holds the sensor main body by the recess portion, wherein the recess portion of the support portion has an oval cross section. A detachable tool that is characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14340495A JPH08339486A (en) | 1995-06-09 | 1995-06-09 | Sensor and its attachment and detachment tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14340495A JPH08339486A (en) | 1995-06-09 | 1995-06-09 | Sensor and its attachment and detachment tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08339486A true JPH08339486A (en) | 1996-12-24 |
Family
ID=15337989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14340495A Withdrawn JPH08339486A (en) | 1995-06-09 | 1995-06-09 | Sensor and its attachment and detachment tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08339486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200489328Y1 (en) * | 2018-01-28 | 2019-06-03 | 김서현 | Fire detector base and fire detector frame using permanent magnets |
| CN111059414A (en) * | 2019-11-15 | 2020-04-24 | 四川中至耀辉建设有限公司 | Smoke sensing installation cover and installation method thereof |
-
1995
- 1995-06-09 JP JP14340495A patent/JPH08339486A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200489328Y1 (en) * | 2018-01-28 | 2019-06-03 | 김서현 | Fire detector base and fire detector frame using permanent magnets |
| CN111059414A (en) * | 2019-11-15 | 2020-04-24 | 四川中至耀辉建设有限公司 | Smoke sensing installation cover and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020903 |