JPH0236127Y2 - - Google Patents
Info
- Publication number
- JPH0236127Y2 JPH0236127Y2 JP1982063369U JP6336982U JPH0236127Y2 JP H0236127 Y2 JPH0236127 Y2 JP H0236127Y2 JP 1982063369 U JP1982063369 U JP 1982063369U JP 6336982 U JP6336982 U JP 6336982U JP H0236127 Y2 JPH0236127 Y2 JP H0236127Y2
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- weight
- shutter
- acceleration
- light receiving
- 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.)
- Expired
Links
- 230000001133 acceleration Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Emergency Alarm Devices (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
【考案の詳細な説明】
本考案は、前後、左右及び上下方向等の三方向
に関して、それぞれ異なる所定値以上の加速度が
作用していることを検知することができる三方向
加速度センサに関するものである。[Detailed description of the invention] The present invention relates to a three-directional acceleration sensor that can detect the presence of acceleration of a predetermined value or more acting in three directions, such as front-back, left-right, and up-down directions, which are different from each other. .
従来、この種の加速度センサには、それぞれの
方向に作動する加速度を単独に検知するセンサは
あるが、前後、左右及び上下方向等の三方向に作
動する異なる加速度を１個のセンサで検知するも
のはなかつた。従つて従来のセンサでは部品点数
も多く、コスト高であるとともに、設置スペース
も大きくなる等の欠点があつた。 Conventionally, this type of acceleration sensor has sensors that individually detect acceleration acting in each direction, but a single sensor detects different accelerations acting in three directions, such as front-back, left-right, and up-down directions. There was nothing. Therefore, conventional sensors have disadvantages such as a large number of parts, high cost, and a large installation space.
本考案は、上述した事情にもとづいてなされた
もので、前後、左右、及び上下方向の三方向加速
度を１個のセンサを用いて容易に検知し得るよう
構成した三方向加速度センサを提供するものであ
る。 The present invention has been developed based on the above-mentioned circumstances, and provides a three-directional acceleration sensor configured to easily detect acceleration in three directions: front-back, left-right, and up-down directions using one sensor. It is.
以下、本考案による実施例を添付した図面にも
とづいて詳細に説明する。第１図ないし第２図は
本考案による三方向加速度センサの正面図及び側
面図であり、図においてベース１の両端部には、
板ばね２，２の下端部が取付ビス３により固着さ
れるとともに、この板ばね２の上端部には、切欠
部４ａを有するシヤツター４を撓みδ分だけオフ
セツトさせて一体的に設けた分銅５が固着されて
いる。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 are a front view and a side view of a three-way acceleration sensor according to the present invention.
The lower ends of the leaf springs 2, 2 are fixed by mounting screws 3, and a weight 5 is integrally provided at the upper end of the leaf spring 2, with a shutter 4 having a notch 4a offset by a deflection δ. is fixed.
また、上記ベース１には発光部６及び受光部７
からなるフオトセンサ８が取付ネジ９により固設
されており、上記フオトセンサ８の発光部６と受
光部７との間のセンサ部に上記分銅５のシヤツタ
ー４が対応して、受光部７へ通る光を遮断するよ
うになつている。上記フオトセンサ８にはコネク
タ１０が固設されており、フオトセンサ８の光の
遮断信号をモジユールに電気信号として送信する
ようになつている。 The base 1 also includes a light emitting section 6 and a light receiving section 7.
The shutter 4 of the weight 5 corresponds to the sensor part between the light emitting part 6 and the light receiving part 7 of the photo sensor 8, and the light passing to the light receiving part 7 is fixed. It has become possible to block out A connector 10 is fixedly attached to the photo sensor 8, and is adapted to transmit a light cutoff signal from the photo sensor 8 to the module as an electrical signal.
以上のように構成された加速度センサの板ばね
２を第３図ないし第５図に示すように、その撓み
方向（即ち、板ばね２の板厚ｔ方向であり、実施
例では円柱形の分銅５の軸線l1−l1方向に一致す
る方向）が、前後、左右のａ，ｂ方向及び上下の
ｃ方向に対して傾斜するように設置する。 As shown in FIGS. 3 to 5, the leaf spring 2 of the acceleration sensor configured as described above is bent in its bending direction (that is, the thickness t direction of the leaf spring 2, and in the embodiment, a cylindrical weight is used. 5 (direction that coincides with the axis l 1 -l 1 direction) is inclined with respect to the front and rear, left and right a and b directions, and the top and bottom c direction.
第５図において、角度βは分銅５の軸線l1−l1
とab面（矢印ａ方向の線と矢印ｂ方向の線で形
成する平面）のなす角度で、線l1−l1と線l2−l2
（線l1−l1のab平面への投影線）のなす角度を示
し、角度θは矢印ａ方向の線と線l2−l2のなす角
度を示す。 In FIG. 5, the angle β is the axis l 1 −l 1 of the weight 5.
is the angle formed by the a-b plane (the plane formed by the line in the direction of arrow a and the line in the direction of arrow b), and the line l 1 - l 1 and the line l 2 - l 2
(the projection line of the line l 1 -l 1 onto the ab plane) is shown, and the angle θ is the angle formed by the line in the direction of arrow a and the line l 2 -l 2 .
この状態では分銅５の自重mgが下向きに作用
し、板ばね２の撓みδにより発生するバネ力と釣
り合つている。 In this state, the dead weight mg of the weight 5 acts downward and is balanced with the spring force generated by the deflection δ of the leaf spring 2.
また、分銅５の自重mgの分力mgsinβによる板ば
ね２の撓みδ分だけオフセツトさせたシヤツター
４の切欠部４ａが受光部７と相対するようにフオ
トセンサ８をベース１に取付けておくので、設定
値以上の加速度が作用した時、板ばね２，２の撓
みδが変化してシヤツター４が受光部７への光の
通りを遮断するようになつている。 In addition, since the photo sensor 8 is mounted on the base 1 so that the notch 4a of the shutter 4, which is offset by the deflection δ of the leaf spring 2 due to the component force mgsinβ of the dead weight mg of the weight 5, faces the light receiving part 7, the settings can be made as follows. When an acceleration exceeding the value is applied, the deflection δ of the leaf springs 2, 2 changes so that the shutter 4 blocks the passage of light to the light receiving section 7.
従つて、上述した構成において、前後左右ａに
U1mgなる力がかかると板ばね２にはU1mgcosθ・
cosβの力が負荷され、左右方向ｂにU2mgなる力
がかかるとU2mgsinθ・cosβなる力が負荷され、
かつ、上下方向ｃにU3mgなる力がかかると同じ
ようにU3mgsinβなる負荷がかかることになる。 Therefore, in the above configuration, front, rear, left and right a
When a force of U 1 mg is applied to leaf spring 2, U 1 mgcosθ・
When a force of cosβ is applied and a force of U 2 mg is applied in the left-right direction b, a force of U 2 mgsinθ・cosβ is applied,
Moreover, if a force of U 3 mg is applied in the vertical direction c, a load of U 3 mgsinβ is similarly applied.
すなわち、別個のU1，U2，U3に対してU1mg
cosθ・cosβ＝U2mgsinθ・cosβ＝U3mgsinβを満足
するようにθとβを設定しておけば、三方向の加
速度を検知するセンサとして作動するものであ
る。 i.e. U 1 mg for separate U 1 , U 2 , U 3
If θ and β are set to satisfy cosθ・cosβ=U 2 mgsinθ・cosβ=U 3 mgsinβ, the sensor will operate as a sensor that detects acceleration in three directions.
ここで仮りにU1＝0.3，U2＝0.5，U3＝0.3とし
た場合θ＝30.96゜、β＝40.61゜となる。 Here, if U 1 =0.3, U 2 =0.5, and U 3 =0.3, θ=30.96° and β=40.61°.
従つて設定加速度が作用した場合、板ばね２の
撓みδが変化して、シヤツター４が受光部７への
光をさえぎり、これがコネクタ１０を介してモジ
ユールへ電気信号として送信され検知される。 Therefore, when a set acceleration is applied, the deflection δ of the leaf spring 2 changes, the shutter 4 blocks light from the light receiving section 7, and this is transmitted as an electrical signal to the module via the connector 10 and detected.
なお、ダンピングを要する場合は、上記センサ
を流体中で使用するか、分銅５の動きに連動させ
た風車の空気抵抗によつて検知するようにできる
ものである。 If damping is required, the sensor can be used in the fluid, or it can be detected by the air resistance of a windmill linked to the movement of the weight 5.
以上詳細に説明したように、本考案による三方
向加速度センサは、板ばねの撓みが基本的にその
厚み方向にのみ生じることに着目し、該撓み方向
を前後、左右及び上下の各方向に対して傾斜させ
ることにより、各方向に生じる加速度の上記撓み
方向に沿う分力で板ばねを撓ませて加速度を検知
するようにしたものである。従つて、従来例の如
く、それぞれの方向に単独のセンサを設ける必要
がなく、各々別個の三方向の所定値以上の加速度
を一個のセンサで検知することが可能であり、し
かも上記撓み方向の前後、左右及び上下の三方向
に対する傾斜角度を適宜設定することにより、各
方向に関してそれぞれ異なる所定値以上の加速度
を検知することが可能となり、その値も上記傾斜
角度の調整に応じて相当の自由度をもつて設定可
能となる等の効果を奏するものである。 As explained in detail above, the three-directional acceleration sensor according to the present invention focuses on the fact that the deflection of a leaf spring basically occurs only in the thickness direction, and the deflection direction is By tilting the leaf spring in the same direction, the leaf spring is deflected by a component force along the deflection direction of the acceleration generated in each direction, and the acceleration is detected. Therefore, it is not necessary to provide a separate sensor in each direction as in the conventional example, and it is possible to detect acceleration of a predetermined value or more in each of three separate directions with a single sensor. By appropriately setting the inclination angle in three directions (front and back, left and right, and up and down), it is possible to detect accelerations that exceed a predetermined value that is different for each direction, and the value can also be adjusted with considerable freedom depending on the adjustment of the above-mentioned inclination angle. This has the advantage of being able to be set with precision.
第１図は本考案による実施例を示す正面図、第
２図は第１図の側面図、第３図ないし第４図は本
考案による一方向加速度センサの設置状態を示す
説明図、第５図は同三方向加速度センサの設置状
態を立体的に示す斜視図である。
１……ベース、２……板ばね、３……取付ビ
ス、４……シヤツター、４ａ……切欠部、５……
分銅、６……発光部、７……受光部、８……フオ
トセンサ、９……取付ネジ、１０……コネクタ。
FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIGS. The figure is a perspective view three-dimensionally showing the installation state of the three-directional acceleration sensor. 1... Base, 2... Leaf spring, 3... Mounting screw, 4... Shutter, 4a... Notch, 5...
Weight, 6... Light emitting section, 7... Light receiving section, 8... Photo sensor, 9... Mounting screw, 10... Connector.
Claims (1)
ねの上端部に固着されるとともに切欠部を有する
シヤツターが一体的に設けられた分銅と、発光部
と受光部とが上記シヤツターを挟んで対向するよ
うに上記ベースに固着されたフオトセンサとを備
え、上記板ばねの撓み方向が前後、左右及び上下
の三方向に対して傾斜するように設置されるとと
もに、上記切欠部がその設置状態において上記分
銅の自重による上記板ばねの撓みで上記発光部と
受光部との間に位置するように上記シヤツターを
設け、上記分銅に作用する所定値以上の加速度に
より板ばねの撓み量が変化して上記シヤツターが
受光部への光を遮り、上記フオトセンサからの電
気信号をモジユールへ送信して三方向の所定値以
上の加速度を検知するように構成した三方向加速
度センサ。 A leaf spring whose lower end is fixed to the base, a weight which is fixed to the upper end of the leaf spring and is integrally provided with a shutter having a notch, and a light emitting part and a light receiving part sandwiching the shutter. and a photo sensor fixed to the base so as to face each other. The shutter is provided so as to be located between the light emitting section and the light receiving section due to the deflection of the leaf spring due to the weight of the weight, and the amount of deflection of the leaf spring changes due to acceleration of a predetermined value or more acting on the weight. The three-way acceleration sensor is configured such that the shutter blocks light from reaching the light receiving section, and transmits an electrical signal from the photo sensor to a module to detect acceleration of a predetermined value or more in three directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982063369U JPS58189964U (en) | 1982-04-30 | 1982-04-30 | Three-way acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982063369U JPS58189964U (en) | 1982-04-30 | 1982-04-30 | Three-way acceleration sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58189964U JPS58189964U (en) | 1983-12-16 |
| JPH0236127Y2 true JPH0236127Y2 (en) | 1990-10-02 |
Family
ID=30073473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982063369U Granted JPS58189964U (en) | 1982-04-30 | 1982-04-30 | Three-way acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58189964U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4912862A (en) * | 1972-05-08 | 1974-02-04 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839877U (en) * | 1971-09-13 | 1973-05-18 |
-
1982
- 1982-04-30 JP JP1982063369U patent/JPS58189964U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4912862A (en) * | 1972-05-08 | 1974-02-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58189964U (en) | 1983-12-16 |
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