JPS63182527A - Easy fitting type seismoscope - Google Patents
Easy fitting type seismoscopeInfo
- Publication number
- JPS63182527A JPS63182527A JP1474587A JP1474587A JPS63182527A JP S63182527 A JPS63182527 A JP S63182527A JP 1474587 A JP1474587 A JP 1474587A JP 1474587 A JP1474587 A JP 1474587A JP S63182527 A JPS63182527 A JP S63182527A
- Authority
- JP
- Japan
- Prior art keywords
- pot
- mercury
- seismoscope
- lid plate
- sealed
- 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.)
- Pending
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 20
- 230000001133 acceleration Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 229920002545 silicone oil Polymers 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims 1
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 abstract description 9
- 239000000725 suspension Substances 0.000 abstract 2
- 239000003989 dielectric material Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、地震時の災害防止のためにガス・石油など燃
料の遮断弁を制御するスイッチ或いはセンサーとして用
いられる感震器に係わるものでちゃ、特に取付は姿勢に
対して角度誤差が大きくても感震器としての性能に影響
を受け々いようにした事、及び全体が極めて小形に製作
可能であり、各種電子部品例えば抵抗器とかコンデンサ
とかＩＣなどと同様に取扱えてプリント基板にも装着す
る事が容易である特徴を有するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a seismic sensor used as a switch or sensor to control a cutoff valve for fuel such as gas or oil in order to prevent disasters during earthquakes. In particular, the installation is designed so that even if there is a large angular error with respect to the posture, the performance as a seismic sensor will not be affected, and the whole can be made extremely compact, and various electronic components such as resistors and capacitors can be mounted. It has the characteristics that it can be handled in the same way as an IC, and can be easily mounted on a printed circuit board.
従来、この種感震器には種々の方式があり、例えば加速
度を感知するイナーシャマスを吊下げる方式とか、磁力
によって強磁性体製のイナーシャマスを一定の位置に保
持して置き、地震発生時にイナーシャマスの移動により
電気接点を駆動する感震器とか、受は皿の上に球状体を
載置してその移動によって振動等の加速度の大きさに応
じて電気信号を得る方式があった。しかしいづれも形状
が大きくなるとか取付時に注意深く正規姿勢を保つよう
に固定しなければ感震器としての性能が発揮出来ないと
いう欠点を有していた。Conventionally, there are various methods for this type of seismic sensor, such as a method in which an inertia mass that senses acceleration is suspended, and a method in which an inertia mass made of ferromagnetic material is held in a fixed position by magnetic force, and when an earthquake occurs. There were seismic sensors in which electric contacts were driven by the movement of inertia mass, and methods in which a spherical body was placed on a plate and the movement of the spherical body was used to obtain an electric signal according to the magnitude of acceleration such as vibration. However, all of them had drawbacks such as their large size and the fact that they could not perform well as a seismic sensor unless they were carefully fixed in a normal position during installation.
本発明の取付簡易形感震器は、１グラムにも満たない小
量の水銀をイナーシャマス及び接点として有効に利用出
来るように粗面化された後述する如き受は皿の形状を有
するポットに収納し、そのポットの開口端を電気的に絶
縁されたリードピンを固着した蓋板に気密に固着した全
体が２グラム程度の小型の密閉容器の前記リードピンに
吊り部を設け、その吊り部によって密閉容器より一回り
大きい外函中に選定された粘度の液体と共に吊り下げ保
持する事によって、外函がそれ程正確な位置姿勢に取付
けられていなくても前記密閉容器はその重力により正規
の姿勢を必ず保持するようになされ、地震等の振動に含
まれる周期の加速度に所期の通りに応答作動するように
構成したものである。The easy-to-mount seismic sensor of the present invention is arranged in a pot having a dish shape, as described below, which has a roughened surface so that a small amount of mercury, less than 1 gram, can be effectively used as an inertia mass and a contact point. The open end of the pot is hermetically fixed to a lid plate to which an electrically insulated lead pin is fixed.A small airtight container weighing approximately 2 grams is provided with a hanging part on the lead pin, and the pot is sealed tightly by the hanging part. By suspending and holding a liquid of a selected viscosity in an outer case that is one size larger than the container, the closed container will always maintain its normal position due to its gravity even if the outer case is not installed in a very precise position or orientation. It is configured to operate in response to periodic acceleration included in vibrations such as earthquakes as expected.
〔発明の実施例〕
第１図及び第２図に示す如く、鉄板を絞り加工などの方
法で作ったボット１は、その中央に水銀８が通常定置さ
れる凹部ＩＡが設けられ、との凹部ＩＡと隣接する勾配
をもった底面ＩＢ及びほぼ垂直の壁面ＩＣと開口端部Ｉ
Ｄから構成されている。蓋板２は比較的厚い鉄板を中央
に孔２人を穿ったドーナツ形であり、その中央の孔２人
にはガラス等の電気絶縁物充填材２Ｂによシニッケル合
金製のリードピン４がハーメチックシールしである。そ
して適量の水銀８と電極ＩＥ及び４Ａが所定の位置に収
納された後所定の非酸化性算量気中で前記蓋板２とボッ
ト１の開口端部ＩＤとはリングブロゼクション溶接のよ
うな方法で気密に固着されている。ボット１の内面は全
体に水銀８の粒が転動し易いように粗面化されており、
０３グラム程度の量の水銀はほとんど球に近い形状を呈
する。従ってこの水銀粒３とボット１との接触は電気的
に不確実で抵抗値が不安定であるから勾配をもった底面
ＩＢと壁面ＩＣとの境界近傍に細いニッケル合金製の線
状体をポット１の内周面に沿って一周する形でスポット
溶接の如き方法で数個所固着し、これを一方の電極ＩＥ
とする事が好ましい。リードピン４の密閉容器内部に突
出している部分には同様に細いニッケル合金製の線状体
をポット１及び蓋板２の下面とは接触しないよう一定の
間隔を保って全周に配設されるような形状の電極４Ａが
リードピン４をスポット溶接の如き方法で固着されてい
る。[Embodiments of the Invention] As shown in FIGS. 1 and 2, a bot 1 made of an iron plate by a method such as drawing is provided with a recess IA in the center of which mercury 8 is normally placed. A sloped bottom surface IB adjacent to IA, a substantially vertical wall surface IC, and an open end portion I
It is composed of D. The lid plate 2 is donut-shaped with two holes in the center of a relatively thick iron plate, and the two holes in the center are filled with an electrically insulating material 2B such as glass, and a lead pin 4 made of nickel alloy is hermetically sealed. It is. After an appropriate amount of mercury 8 and electrodes IE and 4A are housed in a predetermined position, the cover plate 2 and the open end ID of the bot 1 are welded together by ring-breaksion welding in a predetermined non-oxidizing atmosphere. It is sealed in an airtight manner. The entire inner surface of the bot 1 is roughened so that the mercury 8 particles can easily roll around.
An amount of about 0.3 grams of mercury takes on an almost spherical shape. Therefore, since the contact between the mercury grains 3 and the pot 1 is electrically uncertain and the resistance value is unstable, a thin nickel alloy linear body is placed in the pot near the boundary between the sloped bottom surface IB and the wall surface IC. 1 by a method such as spot welding in a circle around the inner peripheral surface of the electrode IE.
It is preferable to do so. Similarly, a thin nickel alloy linear body is arranged around the entire circumference of the part of the lead pin 4 that protrudes into the inside of the sealed container at a constant interval so as not to come into contact with the bottom surface of the pot 1 and the lid plate 2. An electrode 4A having such a shape is fixed to the lead pin 4 by a method such as spot welding.
外函５は合成樹脂のような電気絶縁物で作られた有底筒
状体であり、２本の電気端子Ｆ；Ａ及び５Ｂがインサー
トされている。端子５Ａの上端には直径が０８ミリメー
トル程の極細金属線からなるリード線６Ａの一端が接続
され、その他端はリードピン４の一部にハンダ付けなど
の方法で固着されている。他方のリード線６Ｂの一端は
蓋板２の一部に固着されその他端は端子５Ｂの上端に接
続されている。The outer box 5 is a bottomed cylindrical body made of an electrical insulator such as synthetic resin, and two electrical terminals F; A and 5B are inserted therein. One end of a lead wire 6A made of a very fine metal wire with a diameter of about 0.8 mm is connected to the upper end of the terminal 5A, and the other end is fixed to a part of the lead pin 4 by a method such as soldering. One end of the other lead wire 6B is fixed to a part of the cover plate 2, and the other end is connected to the upper end of the terminal 5B.
リード線６Ａ及び６Ｂは共に半周位の螺旋形状で途中部
分はいづれの部材にも接触する事のないような状態に配
設されている。リードピン４の上部にはリードピン４の
直径より少し小さい内径に作られたコイルスプリングが
強制的に嵌着されそのコイルスプリングの最上端はフッ
ク状に延び出していて吊り部４Ｂを形成している。第２
図を参照すると良く判るように外函５の上端面５Ｃの近
傍の段部５Ｄに設けられた軸受部５Ｅによって支承され
た支持体７の中央の凹部７Ａに吊り部４Ｂは掛けられて
いる。Both lead wires 6A and 6B have a half-circumferential spiral shape and are arranged in such a manner that the middle portions do not come into contact with any member. A coil spring having an inner diameter slightly smaller than the diameter of the lead pin 4 is forcibly fitted onto the upper part of the lead pin 4, and the uppermost end of the coil spring extends in a hook shape to form a hanging part 4B. Second
As can be clearly seen by referring to the figure, the hanging part 4B is hung in the central recess 7A of the support body 7, which is supported by a bearing part 5E provided on the step part 5D near the upper end surface 5C of the outer case 5.
外函５にはＬなる記号にて示すレベル位置迄シリコンオ
イルなどの液体が入れられている。そして外蓋８が上端
面にシリコンオイルの漏れを防止する程度の密閉構造で
固着されている。外蓋８の中央下面には下向きの突起８
Ａが設けられており、この突起８Ａは支持体７に掛けら
れた吊り部４Ｂが外れる事なく常に所定の位置に保持さ
れる役目をなしている。吊り部４Ｂは図示せる如きコイ
ルスプリングに限る事は々〈Ｌ字形の金属体をリードピ
ンに逆置きして固着したものでよく、支持体７もまた金
属板を加工して作られたもので良いが、吊り部と支持体
との両者の接触部分は密閉容器が重力によって常に正規
の姿勢をとる力に対して偏倚力を与えないよう立体角的
にあらゆる方向にむけて点接触に限りなく近い形状であ
る事が好ましい。The outer box 5 is filled with a liquid such as silicone oil up to the level indicated by the symbol L. The outer cover 8 is fixed to the upper end surface with a sealing structure sufficient to prevent leakage of silicone oil. There is a downward protrusion 8 on the lower center surface of the outer lid 8.
A is provided, and this protrusion 8A serves to always hold the hanging part 4B hung on the support body 7 in a predetermined position without coming off. The hanging part 4B is not limited to a coil spring as shown in the figure; it may be an L-shaped metal body placed upside down and fixed to a lead pin, and the support body 7 may also be made by processing a metal plate. However, the contact area between the hanging part and the supporting body is as close to a point contact as possible in all solid angle directions so as not to apply any biasing force to the force that causes the closed container to maintain its normal posture due to gravity. It is preferable that the shape is the same.
以上の如く構成された感震器は、はぼ水平に置かれたプ
リント基板上に置かれ、下向きに出た端子５Ａ・５Ｂが
プリント基板の所定のへトメ孔に挿入され他の電子部品
と同じ様にハンダ付けされ所期の電気制御回路に接続さ
れる場合に、このプリント基板の傾きが５度〜６度傾斜
していても従来の感震器とは異なり全く感震器としての
性能に影蕾を受ける事ガく充分発揮出来る。因みに第１
図に示した感震器のうちのポット１と蓋板２とで構成さ
れる密閉容器中に水銀３を封入した部分のみを外函５か
ら取り出したものについて実験すると例えば２００ガル
で作動するものが傾斜角度を１度とすると約１０パーセ
ント低い１８２ガルとなり、傾斜角度が５度〜６度とも
なれば９０ガル〜１１０ガルも低下してしまう。更にポ
ットの中央凹部ＩＡに隣接する勾配をもった底面ＩＢの
角度が３度〜４度位の低い場合には振動を受けて転動し
た水銀がポットの中央凹部ＩＡから一旦外方へ移動した
後は中央の凹部ＩＡへ復帰出来ない事もあシ得るという
欠点がある。The seismic sensor configured as described above is placed on a printed circuit board placed almost horizontally, and the downwardly protruding terminals 5A and 5B are inserted into predetermined holes in the printed circuit board and connected to other electronic components. When soldered in the same way and connected to the intended electrical control circuit, even if the printed circuit board is tilted 5 to 6 degrees, it will not perform as a seismic sensor at all, unlike conventional seismic sensors. Being under the influence of others allows him to fully demonstrate his abilities. By the way, the first
An experiment was conducted on the seismic sensor shown in the figure, in which only the part in which mercury 3 was sealed in the sealed container consisting of the pot 1 and the lid plate 2 was removed from the outer case 5, and it operated at 200 gal, for example. If the angle of inclination is 1 degree, it will be 182 gal, which is about 10% lower, and if the angle of inclination is 5 to 6 degrees, it will be reduced by 90 to 110 gal. Furthermore, if the angle of the sloped bottom surface IB adjacent to the central recess IA of the pot was as low as 3 to 4 degrees, the mercury that rolled due to vibrations moved outward from the central recess IA of the pot. The disadvantage is that it may not be possible to return to the central recess IA afterwards.
しかし乍ら第１図及び第２図に示した如き本願発明の実
施例のものは外函５の中にはシリコンオイルのように粘
度の選択された液体が注入されて加
いるので地震のようにある周期で往復運動する加速度に
対しては制振作用が働き外函５の取付は角度をシビャに
考慮し々くても全く感震器としての動作を正確に行なわ
せる事が出来る。即ち第３図の如く外函５が傾いて取り
付けられても数秒間乃至数十秒間の後にはポット１と蓋
板２にて構成される密閉容器は第８図に示す如く正常な
姿勢の補正が重力により行なわれる。従ってこの状態で
地震などの加速度が印加された場合には全く正規の状態
に密閉容器が置かれているのと同じで所定の力口
動作が速度に応答する状態を保持されている。外函５中
に封入したシリコンオイルなどの液体の粘度を選定する
事によって感震器としての振動周期に対する感度が変る
事は当然でおり、実験に依れば、水銀粒３を収納した密
閉容器の重量が２．５グラムで大きさはポットの直径が
１センチメートル、蓋板とポットを含めた高さは約０７
センチメードル、直
密閉容器を収納する外函５の内径は２センチメートルで
液体を外函５の容積の９０％程度である記号りにて示し
たレベル迄の量を充填した場合では液体として粘度が常
温で８０００センチストークスのシリコンオイルを用い
た時には、周期が０８秒乃至０．７秒の振動加速度に対
してほとんど一定の感度即ち２００ガルで接点の０Ｎ−
０１１’作動するという結果が得られた。また粘度が１
５００センチスト一クス程度の低い液体では、０３秒の
周期の振動加速度に対しては２００ガルで動作したが、
０．７秒の周期の振動加速度に対しては２５０〜２６０
ガルと可成り高い動作値を示した。これは比較的周期の
長い振動に対しては水銀３と共に受は皿であるポット１
も同じ方向へ若干移動し得るからであると考えられる。However, in the embodiments of the present invention as shown in FIGS. 1 and 2, a liquid with a selected viscosity such as silicone oil is injected into the outer case 5, so A damping effect acts against the acceleration of the reciprocating motion with a certain period, and even if the mounting angle of the outer case 5 is carefully considered, it can operate exactly as a seismic sensor. In other words, even if the outer box 5 is attached at an angle as shown in FIG. 3, after a few seconds to several tens of seconds, the closed container composed of the pot 1 and the lid plate 2 will correct its normal posture as shown in FIG. 8. is carried out by gravity. Therefore, when an acceleration such as an earthquake is applied in this state, it is the same as if the closed container was placed in a completely normal state, and the predetermined force opening operation remains responsive to the velocity. It is natural that the sensitivity to the vibration cycle as a seismic sensor changes by selecting the viscosity of the liquid such as silicone oil sealed in the outer case 5, and according to experiments, the airtight container containing the mercury particles 3. The weight is 2.5 grams, the diameter of the pot is 1 cm, and the height including the lid plate and pot is approximately 0.7 cm.
The inner diameter of the outer box 5 for storing a centimeter, directly sealed container is 2 centimeters, and when the liquid is filled to the level indicated by the symbol, which is about 90% of the volume of the outer box 5, the viscosity of the liquid is 2 cm. When using silicone oil of 8,000 centistokes at room temperature, the sensitivity is almost constant for vibration acceleration with a period of 0.8 to 0.7 seconds, that is, the 0N- of the contact at 200 gal.
The result was that 011' worked. Also, the viscosity is 1
In a liquid as low as 500 centistics, it operated at 200 gal for a vibration acceleration with a period of 0.3 seconds.
250-260 for vibration acceleration with a period of 0.7 seconds
It showed a fairly high operating value. For vibrations with a relatively long period, pot 1 is used as a receiver along with mercury 3.
This is thought to be because they can also move slightly in the same direction.
地震のセンサーの振動周期及びガル値に関して０３秒乃
至０．７秒の周期の１５０ガル±５０ガルにて動作する
事という規格の一例があるが、本実施例のものに対して
この規格を満足させるのには粘度３０００センチストー
クスのものであれば良い事が実験上で確認された。即ち
所定値以下の加速度が印加された時には感震器の端子５
Ａと５Ｂの間は開放状態を継続しており、所定値以上の
加速度が印加された時には第４図に示す如く水銀８がポ
ット１の内面を転動して外周方向に移動し電極ＩＥと４
Ａとの間を短絡したり元の位置へ戻ったりして、端子５
Ａと５Ｂ間は開閉動作を繰り返すのでこの０Ｎ−ＯＦＦ
信号を電子回路により判定処理をして地震を感知した事
を瞬時に判断せしめ例えばガス等の緊急遮断弁を閉じる
装置を作動させる等の用途に用いる事が出来る。Regarding the vibration period and gal value of an earthquake sensor, there is an example of a standard that requires operation at 150 gal ±50 gal with a period of 0.3 seconds to 0.7 seconds, and this example satisfies this standard. It has been experimentally confirmed that a material with a viscosity of 3000 centistokes is sufficient for this purpose. In other words, when an acceleration of less than a predetermined value is applied, the terminal 5 of the seismic sensor
The open state continues between A and 5B, and when an acceleration of more than a predetermined value is applied, the mercury 8 rolls on the inner surface of the pot 1 and moves toward the outer circumference, as shown in FIG. 4
Terminal 5 by short-circuiting it with A and returning it to its original position.
Since the opening and closing operation is repeated between A and 5B, this 0N-OFF
The signal is processed by an electronic circuit to instantly determine that an earthquake has been detected, and can be used for applications such as activating a device that closes an emergency shutoff valve for gas or the like.
尚、第５図に示すものは他の実施例に係るものであるが
、これは電極の構造が第１図に示したものと異なり、正
規姿勢静止状態でリードピン４の下端に固着された電極
１４の先端図示下方は水銀粒１８の自由表面下に常時位
置し、ポット１の中央凹部ＩＡの中心には水銀とよく濡
れるよう々非粗面の出来ればニッケルメッキ等を施した
微少片１Ｆを溶接等の方法で固着せしめておき水銀の電
気接点としての接触抵抗の安定化を図る小が好捷しい。The structure shown in FIG. 5 is related to another embodiment, but the structure of the electrode is different from that shown in FIG. The lower part of the tip of the mercury grain 18 is always located under the free surface of the mercury grain 18, and in the center of the central concave part IA of the pot 1, there is a fine piece 1F with a non-rough surface preferably plated with nickel so that it can be well wetted with mercury. A small size is preferable because it is fixed by a method such as welding to stabilize the contact resistance of the mercury as an electrical contact.
他の記号は第１図と同じものは等動物を示すので重複し
て説明する事は省略するが本′＃施例では地震を感じな
い時は接点は常時閉の状態であり、地震を感じて動作し
た時は開閉状態の信号を発すム〔発明の効果〕
本発明によれば、従来の感震器と異なシ、感震器の取付
けに細心の注意をしたり水準器を具備する必要はなくな
り、例えばプリント基板にコンデンサとかＩＣとか抵抗
器などの電子部品を取付けると同様に手軽に行なってそ
の機能が充分に発揮されるので用途の拡大が図れるとい
う効果は非常に大きい。Other symbols that are the same as those in Figure 1 indicate equal animals, so redundant explanation will be omitted, but in this example, the contact is always closed when an earthquake is not felt, and when an earthquake is not felt, the contact is always closed. [Effects of the Invention] According to the present invention, unlike conventional seismic sensors, it is necessary to pay close attention to the installation of the seismic sensor and to be equipped with a level. For example, when electronic components such as capacitors, ICs, and resistors are attached to a printed circuit board, the functions can be fully demonstrated, which is very effective in expanding the range of applications.
第１図は本発明の実施例に係る縦断面図を、第２図は第
１図に示された実施例を異なる方向から一部分取除いて
斜視的に見た図である。第８図及び第４図は第１図のも
のの動作を示す縦断面図である。第５図は他の実施例を
示す縦断面図である。
１・・・・・・・ポット、 ＩＡ・・・・
・・中央凹部、１Ｂ・・・・・・・・勾配をもった底面
、 ＩＣ・・・・・・・・・壁面、■Ｄ・・・・・・
・・・開口端、 ２・・・・・・・・・
蓋板、８ ・・・・・水銀、 ４・
・・・・・・・リードビン、４Ｂ・・・・・・・・吊９
部、 ５・・・・外函、７・・・・・・・・
・支持体、 Ｌ・・・・・・・・・液体
レベル。
第２図FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention, and FIG. 2 is a perspective view of the embodiment shown in FIG. 1 with a portion removed from a different direction. 8 and 4 are longitudinal sectional views showing the operation of the device shown in FIG. 1. FIG. 5 is a longitudinal sectional view showing another embodiment. 1...Pot, IA...
...Central recess, 1B... Sloped bottom, IC... Wall surface, ■D...
・・・Open end, 2・・・・・・・・・
Lid plate, 8...Mercury, 4.
・・・・・・Lead bin, 4B・・・・・・Hanging 9
Department, 5... Outer box, 7...
・Support, L...Liquid level. Figure 2
Claims (1)
れたポット及びその開口端部にリードピンを電気的に絶
縁固定した蓋板を接合して構成した密閉容器中に水銀を
封入して成り、前記リードピンには吊り部が装着され、
その吊り部が所定位置に支持される支持体を保持しかつ
前記密閉容器をシリコンオイル等の粘性を選定された液
体と共に収容する外函から成り、この外函を適当に固定
する事により前記密閉容器は短時間内に重力に依り所定
の正規姿勢を保ち得るようになされるとともに、前記外
函が地震等の加速度を受けた場合には前記密閉容器中の
水銀が前記ポットの中央凹部から勾配をもった底面を転
動してポットとリードピンとの間の電気回路を開閉する
ように構成した事を特徴とする簡易取付形感震器。Mercury is sealed in an airtight container consisting of a pot with a central recess, a sloped bottom and walls concentrically arranged, and a lid plate with electrically insulated lead pins fixed to the open end of the pot. A hanging part is attached to the lead pin,
The hanging portion holds a support supported in a predetermined position and is comprised of an outer case for containing the airtight container together with a liquid of a selected viscosity such as silicone oil. The container is able to maintain a predetermined normal posture within a short time due to gravity, and when the outer case is subjected to acceleration such as an earthquake, the mercury in the sealed container is tilted away from the central recess of the pot. A simple-to-mount seismic device characterized by being constructed so that an electric circuit between a pot and a lead pin is opened and closed by rolling on a bottom surface having a bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1474587A JPS63182527A (en) | 1987-01-24 | 1987-01-24 | Easy fitting type seismoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1474587A JPS63182527A (en) | 1987-01-24 | 1987-01-24 | Easy fitting type seismoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63182527A true JPS63182527A (en) | 1988-07-27 |
Family
ID=11869650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1474587A Pending JPS63182527A (en) | 1987-01-24 | 1987-01-24 | Easy fitting type seismoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63182527A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49135658A (en) * | 1973-04-27 | 1974-12-27 | ||
| JPS5826526A (en) * | 1981-07-16 | 1983-02-17 | ゼネラル・エレクトリツク・カンパニイ | Overvoltage protecting circuit |
| JPS61160026A (en) * | 1985-01-07 | 1986-07-19 | Matsushita Electric Ind Co Ltd | Seismoscope |
| JPS6236100U (en) * | 1985-08-16 | 1987-03-03 |
-
1987
- 1987-01-24 JP JP1474587A patent/JPS63182527A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49135658A (en) * | 1973-04-27 | 1974-12-27 | ||
| JPS5826526A (en) * | 1981-07-16 | 1983-02-17 | ゼネラル・エレクトリツク・カンパニイ | Overvoltage protecting circuit |
| JPS61160026A (en) * | 1985-01-07 | 1986-07-19 | Matsushita Electric Ind Co Ltd | Seismoscope |
| JPS6236100U (en) * | 1985-08-16 | 1987-03-03 |
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