JPH033172B2 - - Google Patents
Info
- Publication number
- JPH033172B2 JPH033172B2 JP17675980A JP17675980A JPH033172B2 JP H033172 B2 JPH033172 B2 JP H033172B2 JP 17675980 A JP17675980 A JP 17675980A JP 17675980 A JP17675980 A JP 17675980A JP H033172 B2 JPH033172 B2 JP H033172B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- matrix
- electrode
- electrodes
- load distribution
- 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
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/205—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using distributed sensing elements
Description
【発明の詳細な説明】
この発明は物体上に作用する荷重の分布を測定
する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring the distribution of loads acting on an object.
物体上に作用する荷重の分布を測定する必要が
ある場合がある。例えば、自動車のシートの性能
評価試験をする場合に、従来は、運転者が実際に
自動車のシートに座してみて、主としてその感触
によりその性能を評価していたが、近来、運転者
からの体重その他の荷重を運転台のシートがどの
部分でどのように受けるかの荷重分布を測定する
ことによつて、シートの性能評価試験をすること
が行なわれている。しかるにここで使用される荷
重分布測定装置は、シート上の多数点にロードセ
ルを配置したもので、装置が大型化し、実験室に
おける評価試験は可能であるものの、実際に走行
中の自動車内で使用するには不適当である。 Sometimes it is necessary to measure the distribution of loads acting on an object. For example, when performing performance evaluation tests on car seats, conventionally the driver actually sat in the car seat and evaluated its performance mainly based on the feel of the car seat. Seat performance evaluation tests are conducted by measuring the load distribution of where and how the seat of a driver's cab receives weight and other loads. However, the load distribution measurement device used here has load cells placed at multiple points on the seat, making the device large and, although it is possible to perform evaluation tests in a laboratory, it is difficult to use it inside a moving vehicle. It is inappropriate to do so.
この発明は上記の如き事情に鑑みてなされたも
のであつて、物体上の荷重分布測定を容易かつ確
実に行うことができ、かつ、小型で安価な装置を
提供することを目的とするものである。 This invention was made in view of the above circumstances, and aims to provide a small and inexpensive device that can easily and reliably measure load distribution on an object. be.
この目的に対応して、この発明の荷重分布測定
装置は、一方の面にマトリツクスに位置する複数
の測定箇所に対応して複数の電極を配設し他の面
にマトリツクスの各行に沿つて複数の出力端子を
配設してある可撓性シート状の一方の電極板と、
一方の面にマトリツクスの各列に沿つて複数の電
極を配設してある可撓性シート状の他方の電極板
と、及び一方の電極板と他方の電極板との間に介
在する感圧導電性ゴムシートとを一体的に貼合し
て構成したシート状検出部材を備え、一方の電極
板の対応する電極と出力端子とを整流素子を介し
て接続し、指定された測定箇所において対応する
電極間の感圧導電性ゴムシートの電気抵抗を測定
するように構成したことを特徴としている。 Corresponding to this purpose, the load distribution measuring device of the present invention has a plurality of electrodes arranged on one surface corresponding to a plurality of measurement points located in a matrix, and a plurality of electrodes arranged along each row of the matrix on the other surface. one electrode plate in the form of a flexible sheet on which output terminals are arranged;
The other electrode plate is a flexible sheet having a plurality of electrodes arranged along each row of the matrix on one surface, and the pressure sensitive electrode plate is interposed between one electrode plate and the other electrode plate. Equipped with a sheet-like detection member constructed by integrally laminating a conductive rubber sheet, the corresponding electrode of one electrode plate and the output terminal are connected via a rectifying element, and can be measured at a designated measurement point. The device is characterized in that it is configured to measure the electrical resistance of a pressure-sensitive conductive rubber sheet between electrodes.
以下、この発明の詳細を一実施例を示す図面に
ついて説明する。 Hereinafter, details of the present invention will be explained with reference to the drawings showing one embodiment.
第１図及び第２図において、１は荷重検出部材
であり、荷重検出部材１は一方の電極板２、感圧
導電性ゴムシート３、他方の電極板４とを重ねて
一体的に貼合して構成されたものである。荷重検
出部材１は複数の測定箇所をマトリツクス（図示
せず）に備えている。 In FIGS. 1 and 2, 1 is a load detection member, and the load detection member 1 is integrally laminated with an electrode plate 2 on one side, a pressure-sensitive conductive rubber sheet 3, and an electrode plate 4 on the other side. It was constructed as follows. The load detection member 1 includes a plurality of measurement points in a matrix (not shown).
一方の電極板２は、第２図及び第３図に示す如
く、可撓性と絶縁性を有する合成樹樹製のシート
の一方の面に複数の電極５をプリント配線によつ
て備え、かつ他方の面に複数の出力端子６をプリ
ント配線によつて備えている。電極５はマトリツ
クスに配置された測定箇所（図示せず）に一致し
て位置し、また、出力端子６はそのマトリツクス
の行に沿つて設けられている。したがつて、仮に
電極５の数が４×４＝16個の場合に、出力端子６
の数はマトリツクスの行数に一致して４本であ
る。各電極５と出力端子６との間にはそれぞれダ
イオードの如き整流素子７が接続し、電極５から
出力端子６への電流のみを許容する。 As shown in FIGS. 2 and 3, one electrode plate 2 is provided with a plurality of electrodes 5 by printed wiring on one side of a flexible and insulating synthetic resin sheet, and A plurality of output terminals 6 are provided on the other surface by printed wiring. The electrodes 5 are located corresponding to measurement points (not shown) arranged in the matrix, and the output terminals 6 are provided along the rows of the matrix. Therefore, if the number of electrodes 5 is 4×4=16, the output terminal 6
The number of lines is four, matching the number of rows of the matrix. A rectifying element 7, such as a diode, is connected between each electrode 5 and the output terminal 6, and only allows current to flow from the electrode 5 to the output terminal 6.
他方の電極板４は可撓性と絶縁性を有する合成
樹脂製のシートの裏面にプリント配線したもので
あつて、第２図及び第４図に示した如く、複数の
長尺の電極８を平行に備えている。各電極８は前
記マトリツクスの列に沿つて位置し、したがつて
各電極８は各出力端子６とは交差し、その交差点
において各電極５が位置することになる。したが
つてまた、仮に、電極５の数が４×４＝16個であ
る場合に、電極８の数はマトリツクス列数に一致
して４本である。 The other electrode plate 4 is made of a flexible and insulating synthetic resin sheet with printed wiring printed on the back side, and has a plurality of long electrodes 8 as shown in FIGS. 2 and 4. Prepared in parallel. Each electrode 8 is located along the row of the matrix, so that each electrode 8 intersects each output terminal 6, and each electrode 5 is located at the intersection. Therefore, if the number of electrodes 5 is 4×4=16, the number of electrodes 8 is four, matching the number of matrix rows.
感圧導電性ゴムシート３は、絶縁性を有する
が、厚さ方向に荷重が作用した場合には、その歪
部分のみにおいて電気抵抗値が小さくなつて導電
性となるゴムシートであつて、このような感圧導
電性ゴムシート３としては、例えば感圧導電性シ
リコンゴムシート（CS57−7RSC）（横浜ゴム株
式会社製）を使用することができる。 The pressure-sensitive conductive rubber sheet 3 is a rubber sheet that has insulating properties, but when a load is applied in the thickness direction, the electrical resistance value decreases only in the strained portion and becomes conductive. As the pressure-sensitive conductive rubber sheet 3, for example, a pressure-sensitive conductive silicone rubber sheet (CS57-7RSC) (manufactured by Yokohama Rubber Co., Ltd.) can be used.
このように構成された荷重検出部材１を第５図
に示す如き回路に組込んで荷重分布測定装置１１
が完成する。すなわち、一方の電極板２の出力端
子６をスイツチ１２を介して定電流源１３に接続
し、スイツチ１２の断続をスキヤナー１４によつ
て走査して行う。また、他方の電極板４の電極８
をスイツチ１５を介して定電流源１３に接続し、
スイツチ１５の断続をスキヤナー１６によつて走
査して行う。スキヤナー１４，１６の制御をクロ
ツク１７、カウンタ１８，１９、ライン変換器２
１，２２によつて行う。 The load detection member 1 configured as described above is assembled into a circuit as shown in FIG. 5 to construct a load distribution measuring device 11.
is completed. That is, the output terminal 6 of one electrode plate 2 is connected to a constant current source 13 via a switch 12, and the switch 12 is turned on and off by scanning with a scanner 14. Also, the electrode 8 of the other electrode plate 4
is connected to the constant current source 13 via the switch 15,
The switch 15 is turned on and off by scanning with a scanner 16. The scanners 14 and 16 are controlled by a clock 17, counters 18 and 19, and a line converter 2.
1, 22.
このように構成された荷重分布測定装置１１に
より自動車のシートにおける荷重分布の測定をす
る場合には次のようにする。すなわち、荷重分布
測定装置１１を自動車のシートに取り付け、その
上から運転者を着座させる。運転者の自重或いは
運転者に作用する加速度等によつて、荷重検出部
材１上のマトリツクスの測定箇所のいずれかに荷
重が作用すると、この荷重を受けた測定箇所の感
圧導電性ゴムシートの抵抗が荷重の大きさに応じ
て減少し、その測定箇所において対応する電極８
と電極５との間に電流が生じる。したがつて、そ
の測定箇所をスキヤナー１４，１６の走査によつ
て順次指定してその部分の電気抵抗値を測定する
ことにより、その荷重分布のパターン及びその時
間的変化を知ることができる。一方の電極板２に
おける整流素子７により電流が整流されるため、
荷重を受けた測定箇所の電流を平均化することな
く確実に出力させることができる。 When measuring the load distribution on a car seat using the load distribution measuring device 11 configured as described above, the following procedure is performed. That is, the load distribution measuring device 11 is attached to a car seat, and a driver is seated on it. When a load is applied to any of the measurement points of the matrix on the load detection member 1 due to the driver's own weight or acceleration acting on the driver, the pressure-sensitive conductive rubber sheet at the measurement point that received this load will The resistance decreases depending on the magnitude of the load, and the corresponding electrode 8 at the measurement point
A current is generated between the electrode 5 and the electrode 5. Therefore, by sequentially specifying the measurement points by scanning with the scanners 14 and 16 and measuring the electrical resistance value of that portion, it is possible to know the pattern of the load distribution and its temporal change. Since the current is rectified by the rectifying element 7 on one electrode plate 2,
It is possible to reliably output the current at the measurement location under load without averaging it.
以上の説明から明らかな通り、この発明によれ
ば、物体上の荷重分布測定を容易かつ確実に行う
ことができ、かつ、小型で安価な荷重分布測定装
置を得ることができる。 As is clear from the above description, according to the present invention, it is possible to easily and reliably measure the load distribution on an object, and to obtain a small and inexpensive load distribution measuring device.
第１図は荷重検出部材の斜視図、第２図は荷重
検出部材の分解斜視図、第３図は一方の電極板を
示す断面図、第４図は他方の電極板を示す断面
図、及び第５図は荷重分布測定装置を示す構成説
明図である。
１……荷重検出部材、２……電極板、３……感
圧導電性ゴムシート、４……電極板、７……整流
素子、１１……荷重分布測定装置。
Fig. 1 is a perspective view of the load detection member, Fig. 2 is an exploded perspective view of the load detection member, Fig. 3 is a sectional view showing one electrode plate, Fig. 4 is a sectional view showing the other electrode plate, and FIG. 5 is a configuration explanatory diagram showing a load distribution measuring device. DESCRIPTION OF SYMBOLS 1... Load detection member, 2... Electrode plate, 3... Pressure-sensitive conductive rubber sheet, 4... Electrode plate, 7... Rectifying element, 11... Load distribution measuring device.
Claims (1)
定箇所に対応して複数の電極を配設し他方の面に
前記マトリツクスの各行に沿つて複数の出力端子
を配設してある可撓性シート状の一方の電極板
と、一方の面に前記マトリツクスの各列に沿つて
複数の電極を配設してある可撓性シート状の他方
の電極板と、及び前記一方の電極板と前記他方の
電極板との間に介在する感圧導電性ゴムシートと
を一体的に貼合して構成したシート状検出部材を
備え、前記一方の電極板の対応する前記電極と前
記出力端子とを整流素子を介して接続し、指定さ
れた測定箇所において対応する前記電極間の前記
感圧導電性ゴムシートの電気抵抗を測定するよう
に構成したことを特徴とする荷重分布測定装置。 ２ 前記測定箇所の指定を、前記一方の電極板の
前記出力端子を走査するスキヤナーと前記他方の
電極板の前記電極を走査するスキヤナーとによつ
て行うことを特徴とする特許請求の範囲第１項記
載の荷重分布測定装置。[Claims] 1. A plurality of electrodes are disposed on one surface corresponding to a plurality of measurement points located in a matrix, and a plurality of output terminals are disposed on the other surface along each row of the matrix. one electrode plate in the form of a flexible sheet; the other electrode plate in the form of a flexible sheet having a plurality of electrodes arranged along each row of the matrix on one surface; A sheet-like detection member configured by integrally bonding an electrode plate and a pressure-sensitive conductive rubber sheet interposed between the electrode plate and the other electrode plate; A load distribution measuring device, characterized in that it is connected to an output terminal via a rectifying element, and is configured to measure the electrical resistance of the pressure-sensitive conductive rubber sheet between the corresponding electrodes at designated measurement points. . 2. The measurement point is specified by a scanner that scans the output terminal of the one electrode plate and a scanner that scans the electrode of the other electrode plate. The load distribution measuring device described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17675980A JPS57100331A (en) | 1980-12-15 | 1980-12-15 | Measuring device for load distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17675980A JPS57100331A (en) | 1980-12-15 | 1980-12-15 | Measuring device for load distribution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57100331A JPS57100331A (en) | 1982-06-22 |
| JPH033172B2 true JPH033172B2 (en) | 1991-01-17 |
Family
ID=16019308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17675980A Granted JPS57100331A (en) | 1980-12-15 | 1980-12-15 | Measuring device for load distribution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57100331A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102332A (en) * | 1987-10-16 | 1989-04-20 | Kokoku Rubber Kogyo Kk | Contact sensor |
| JPH02203227A (en) * | 1989-02-02 | 1990-08-13 | Yokohama Rubber Co Ltd:The | Distribution type tactile sensor for footwear |
| EP1628196A4 (en) | 2003-05-19 | 2008-10-29 | Eit Co Ltd | Position sensor using area image sensor |
| JP3999729B2 (en) | 2003-11-28 | 2007-10-31 | 株式会社シロク | Pressure detection device using electromagnetic coupling |
| JP3928976B1 (en) | 2006-01-19 | 2007-06-13 | 株式会社シロク | Pressure distribution detector using electromagnetic coupling |
| JP5028552B2 (en) | 2006-06-19 | 2012-09-19 | 株式会社Ｎｃ３ | Object detection device for detecting an object using electromagnetic induction |
| US8563880B2 (en) | 2006-10-24 | 2013-10-22 | Newcom, Inc. | Operating tool with conductor pieces |
-
1980
- 1980-12-15 JP JP17675980A patent/JPS57100331A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57100331A (en) | 1982-06-22 |
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