JPH0536331U - Pressure sensor - Google Patents

Pressure sensor

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Publication number
JPH0536331U
JPH0536331U JP9374691U JP9374691U JPH0536331U JP H0536331 U JPH0536331 U JP H0536331U JP 9374691 U JP9374691 U JP 9374691U JP 9374691 U JP9374691 U JP 9374691U JP H0536331 U JPH0536331 U JP H0536331U
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Japan
Prior art keywords
pressure
conductive elastomer
electrode
convex portion
sensitive conductive
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Application number
JP9374691U
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Japanese (ja)
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JPH0750689Y2 (en
Inventor
照男 岡本
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Inaba Rubber Co Ltd
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Inaba Rubber Co Ltd
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Priority to JP1991093746U priority Critical patent/JPH0750689Y2/en
Publication of JPH0536331U publication Critical patent/JPH0536331U/en
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Abstract

(57)【要約】 【目的】 感圧導電性エラストマー部材の表面の形状に
加良を加えることにより、分解能を高めると共に、検知
可能な圧力の方向を多方向とし、これにより従来は不可
能であった感圧導電性エラストマー部材の表面と平行な
方向の圧力や該表面に対する傾斜角の小さい方向の圧力
をも検知可能にし、使用用途の拡大を図ると共に、触覚
としての機能を充分に発揮できるようにする。 【構成】 感圧導電性エラストマーシート3の表面に圧
力検出用凸部2を形成すると共に、この圧力検出用凸部
2の形成箇所の裏面側に電極6を配設する。そして、所
定の規則性をもって複数の圧力検出用凸部2…2及びこ
れらに対応する電極6…6を設ける。
(57) [Abstract] [Purpose] By increasing the shape of the surface of the pressure-sensitive conductive elastomer member, the resolution is increased and the direction of detectable pressure is set in multiple directions. The pressure in the direction parallel to the surface of the pressure-sensitive conductive elastomer member and the pressure in the direction with a small inclination angle with respect to the surface can be detected, so that the application can be expanded and the function as a tactile sensation can be sufficiently exhibited. To do so. [Structure] A pressure detecting convex portion 2 is formed on the surface of a pressure-sensitive conductive elastomer sheet 3, and an electrode 6 is arranged on the back surface side of the location where the pressure detecting convex portion 2 is formed. Then, a plurality of pressure detecting projections 2 ... 2 and electrodes 6 ... 6 corresponding thereto are provided with a predetermined regularity.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、感圧導電性エラストマーの有する特性を利用したセンサーの改良技 術に関し、特に、圧力が作用する部分の形状に改良を加えて従来には存在しなか った特殊機能を所有させるための技術であり、例えば食品用ロボット、医療用ロ ボット、産業用ロボット、機械装置用の感圧センサー等の触覚部分を有する装置 への利用に供し得るセンサーに関するものである。 The present invention relates to an improved technology of a sensor that utilizes the characteristics of a pressure-sensitive conductive elastomer, and in particular, to improve the shape of the portion on which pressure acts so as to have a special function that has not existed in the past. The present invention relates to a sensor that can be used for a device having a tactile part such as a food robot, a medical robot, an industrial robot, and a pressure sensor for a mechanical device.

【0002】[0002]

【従来の技術】[Prior Art]

従来より、無加圧時には高電気抵抗値を示して絶縁性を有し且つ加圧時には圧 縮変形することにより低電気抵抗値を示して導電性を有するようになる材料とし て、感圧導電性ゴムに代表される感圧導電性エラストマーがあり、この種の材料 は、例えば特公昭56−9187号公報、特公昭56−54019号公報、特公 昭60−722号公報、特公昭60−723号公報等により、既に公知となって いる。 この感圧導電性エラストマーは、ゴム又はエラストマーでなる絶縁体の中に金 属や造粒カーボン等の導電性粒子を混合分散させたものであり、その特性は、無 加圧時には導電性粒子が互いに離れているために絶縁性を示すのであるが、圧力 を加えていくことにより導電性粒子が互いに接近し或いは接触して電気抵抗値が 次第に低下し、これに伴って導電性を示すようになるものである。 Conventionally, a pressure-sensitive conductive material has been used as a material that has a high electric resistance value when no pressure is applied, has an insulating property, and exhibits a low electric resistance value by being compressed and deformed when a pressure is applied to become conductive. There are pressure-sensitive conductive elastomers typified by elastic rubbers, and materials of this type are disclosed, for example, in Japanese Patent Publication No. 56-9187, Japanese Patent Publication No. 56-54019, Japanese Patent Publication No. 60-722, and Japanese Patent Publication No. 60-. It is already known from the Japanese Patent No. 723, etc. This pressure-sensitive conductive elastomer is made by mixing and dispersing conductive particles such as metal or granulated carbon in an insulator made of rubber or elastomer. Since they are separated from each other, they show an insulating property, but when pressure is applied, the conductive particles come close to or come into contact with each other and the electric resistance value gradually decreases. It will be.

【0003】 このような感圧導電性エラストマーの有する特性を利用して実際にセンサーに 適用した従来例として、図8に示すように、感圧導電性エラストマー100の上 面及び下面にフィルム状のフレキシブルプリント基板101、102を配設し、 この双方のプリント基板101、102に上面側と下面側とで互いに直交する方 向に延びる多数列の電極101a…101a、102a…102aを所定のピッ チで列設したものである。このセンサーによれば、特定の一箇所に圧力が加えら れて感圧導電性エラストマーシート100が圧縮変形を来たした場合には、当該 一箇所に存在する上面側プリント基板101の電極101aと下面側プリント基 板102の電極102aとの間が導通状態となり、この導通状態となっている電 極101aのX方向位置と電極102aのY方向位置とから圧力が加えられてい る箇所のX−Y座標が特定できるものであり、また導通時の通電量から圧力の大 きさを知得できるものである。As a conventional example in which the characteristics of the pressure-sensitive conductive elastomer are actually applied to a sensor, as shown in FIG. 8, a film-shaped film is formed on the upper and lower surfaces of the pressure-sensitive conductive elastomer 100. Flexible printed circuit boards 101 and 102 are arranged, and a plurality of rows of electrodes 101a ... 101a, 102a ... 102a extending in directions orthogonal to each other on the upper surface side and the lower surface side are provided on the both printed circuit boards 101, 102 in a predetermined pitch. They are lined up in. According to this sensor, when pressure is applied to a specific location and the pressure-sensitive conductive elastomer sheet 100 is compressed and deformed, the pressure-sensitive conductive elastomer sheet 100 and the electrode 101a of the upper surface side printed circuit board 101 existing at the location A conductive state is established between the lower surface side printed substrate 102 and the electrode 102a, and an X-position of a portion to which pressure is applied from the X-direction position of the electrode 101a and the Y-direction position of the electrode 102a in the conductive state. The Y coordinate can be specified, and the magnitude of the pressure can be known from the energization amount during conduction.

【0004】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら、上記例示した従来のセンサーは、以下に示すような問題点があ った。 即ち、感圧導電性エラストマーシート100の上面側に配設されたフレキシブ ルプリント基板101は、ポリエステルやポリアミド等のプラスチックでなるフ ィルムに銅箔或いはアルミ箔等の電極を貼着したものであるため、上方からの加 圧力は感圧導電性エラストマーシート100に直接的に作用するものではなく、 フレキシブルプリント基板101を介して間接的に作用することとなり、このた め加圧力はフレキシブルプリント基板101によって分散されてしまい、感圧導 電性エラストマーシート100が本来的に有している特性よりも分解能が低下す るという問題がある。 However, the conventional sensors exemplified above have the following problems. That is, the flexible printed circuit board 101 disposed on the upper surface side of the pressure-sensitive conductive elastomer sheet 100 is a film made of plastic such as polyester or polyamide and having electrodes such as copper foil or aluminum foil attached thereto. Therefore, the pressure applied from above does not act directly on the pressure-sensitive conductive elastomer sheet 100, but indirectly via the flexible printed circuit board 101. Therefore, there is a problem that the pressure-sensitive conductive elastomer sheet 100 has a lower resolution than the original characteristics.

【0005】 更に、上記のセンサーが検出可能な圧力の方向は、感圧導電性エラストマーシ ート100の上面を指向する方向のみであって、当該上面と平行な方向を指向す る圧力は感知できず、また当該上面に対して傾斜状に作用する圧力であっても傾 斜角が小さい場合には圧力を殆ど感知できず、触覚としての機能を果し得ないと いう問題がある。Further, the direction of pressure that can be detected by the above-mentioned sensor is only the direction that is directed to the upper surface of the pressure-sensitive conductive elastomer sheet 100, and the pressure that is directed to the direction parallel to the upper surface is detected. There is a problem in that even if the pressure acts on the upper surface in a tilted manner, the pressure is hardly sensed when the tilt angle is small, and the function as a tactile sensation cannot be fulfilled.

【0006】 本考案は上記諸事情に鑑みてなされたものであり、分解能の低下の問題点や検 知可能な圧力方向制限の問題点等を総合的に検討することにより、分解能が良く 而も検知可能な圧力方向が多方向であって、触覚としての機能を充分に発揮し得 る感圧センサーを提供することを技術的課題とするものである。The present invention has been made in view of the above circumstances, and the resolution is improved by comprehensively examining the problems of deterioration of resolution and the problem of detectable pressure direction limitation. It is a technical subject to provide a pressure-sensitive sensor that can detect the pressure direction in multiple directions and can sufficiently exhibit the function as a tactile sensation.

【0007】[0007]

【課題を解決するための手段】[Means for Solving the Problems]

本考案に係る感圧センサーは、上記技術的課題を達成すべく、以下に示すよう に構成したことを特徴とする。 即ち、感圧導電性エラストマー部材と、該感圧導電性エラストマー部材の裏面 側に配設され且つその変形に伴う電気抵抗変化を取り出す電極とを有する感圧セ ンサーにおいて、前記感圧導電性エラストマー部材の表面側に圧力検出用凸部を 形成すると共に、該圧力検出用凸部が形成されている箇所の裏面側に電極を配設 したものである。 そして、更なる特殊機能を所有させるために、感圧導電性エラストマー部材の 表面側に所定の規則性をもって複数の圧力検出用凸部を形成し、各圧力検出用凸 部の夫々の形成箇所の裏面側に電極を配設することが好ましいものである。 The pressure-sensitive sensor according to the present invention is characterized in that it is configured as shown below in order to achieve the above technical problems. That is, in a pressure-sensitive sensor having a pressure-sensitive conductive elastomer member and an electrode arranged on the back surface side of the pressure-sensitive conductive elastomer member and taking out a change in electric resistance due to its deformation, the pressure-sensitive conductive elastomer is provided. The pressure detecting convex portion is formed on the front surface side of the member, and the electrode is arranged on the back surface side of the portion where the pressure detecting convex portion is formed. Then, in order to possess a further special function, a plurality of pressure detecting convex portions are formed on the surface side of the pressure-sensitive conductive elastomer member with a predetermined regularity, and the respective pressure detecting convex portions are respectively formed. It is preferable to dispose an electrode on the back surface side.

【0008】[0008]

【作用】[Action]

上記手段によると、感圧導電性エラストマー部材の表面側に形成されている圧 力検出用凸部に加圧力が作用した場合には、この圧力検出用凸部の形成箇所周辺 が表面側から裏面側にわたって変形を来たし、この変形に起因する電気抵抗変化 が圧力検出用凸部の裏面側に配設されている電極より取り出される。この場合、 上記加圧力は圧力検出用凸部に集中して作用するものであるから、この加圧力が 周囲に向かって分散されることはなく、而も、該圧力検出用凸部は部分的に外方 に突出しているので、感圧導電性エラストマー部材の表面と平行な方向の圧力や 傾斜角の小さい斜め方向の圧力は、圧力検出用凸部の側方より作用して該圧力検 出用凸部を変位させると共に、この変位に連動して感圧導電性エラストマー部材 の表面側から裏面側に至る部位を変形させることになる。この圧力検出用凸部の 形状としては、半球状,四角錐等の多角錐状,円筒状,直方体状等が挙げられる 。 また、感圧導電性エラストマー部材の表面に所定の規則性をもって(例えば縦 横に一定のピッチで)、複数の圧力検出用凸部を形成し、且つこれらに夫々対応 する電極を設けておけば、電気抵抗変化が取り出された電極の位置を認識するこ とにより、当該平面内におけるどの位置に圧力が作用しているかを容易に知得で きることとなる。 According to the above means, when pressure is applied to the pressure detection convex portion formed on the front surface side of the pressure-sensitive conductive elastomer member, the area around the pressure detection convex portion is changed from the front surface side to the back surface. Deformation is caused over the side, and the electric resistance change caused by this deformation is taken out from the electrode provided on the back surface side of the pressure detecting convex portion. In this case, since the pressing force is concentrated on the pressure detecting convex portion, the pressing force is not dispersed toward the surroundings, and the pressure detecting convex portion is partially Since it protrudes outwardly, the pressure in the direction parallel to the surface of the pressure-sensitive conductive elastomer member and the pressure in the oblique direction with a small inclination angle act from the side of the pressure detection convex portion to detect the pressure. In addition to displacing the projecting convex portion, the portion from the front surface side to the back surface side of the pressure-sensitive conductive elastomer member is deformed in conjunction with this displacement. Examples of the shape of the pressure detecting convex portion include a hemispherical shape, a polygonal pyramid such as a quadrangular pyramid, a cylindrical shape, and a rectangular parallelepiped shape. If a plurality of pressure detecting convex portions are formed on the surface of the pressure sensitive conductive elastomer member with a predetermined regularity (for example, at a constant pitch in the vertical and horizontal directions), and electrodes corresponding to these convex portions are provided, respectively. By recognizing the position of the electrode where the electric resistance change is taken out, it becomes possible to easily know at which position in the plane the pressure is applied.

【0009】[0009]

【実施例】【Example】

以下、本考案に係る感圧センサーの実施例を、図面に基づいて説明する。 図1に示すように、本考案に係る感圧センサー1は、表面に圧力検出用凸部2 が一体的に形成された感圧導電性エラストマーシート3と、該感圧導電性エラス トマーシート3の裏面側に配設されたプリント基板4と、該プリント基板4の上 面に設けられて前記感圧導電性エラストマーシート3の裏面が当接する電極6( 電極パターン)と、前記プリント基板4の上面における電極6の側方に設けられ て保護膜7により覆われたICやLSI等でなる制御手段8とを有する。 An embodiment of a pressure-sensitive sensor according to the present invention will be described below with reference to the drawings. As shown in FIG. 1, a pressure-sensitive sensor 1 according to the present invention comprises a pressure-sensitive conductive elastomer sheet 3 having a pressure-detecting convex portion 2 integrally formed on its surface, and a pressure-sensitive conductive elastomer sheet 3. A printed circuit board 4 arranged on the back surface side, electrodes 6 (electrode pattern) provided on the upper surface of the printed circuit board 4 and contacting the back surface of the pressure-sensitive conductive elastomer sheet 3, and an upper surface of the printed circuit board 4. The control means 8 is provided on the side of the electrode 6 in FIG.

【0010】 前記感圧導電性エラストマーシート3としては、従来のものを用いることがで き、中でもシリコーンゴム中に造粒カーボン或いは球状炭素粒子を混合分散させ たものが好適であると共に、該感圧導電性エラストマーシート3の圧力検出用凸 部2の形成箇所の丁度裏面側に相当する位置に電極6が配設されている。また、 前記制御手段8は、電極6からの電気信号を処理するために設けられたものであ る。As the pressure-sensitive conductive elastomer sheet 3, a conventional one can be used, and among them, one in which granulated carbon or spherical carbon particles are mixed and dispersed in silicone rubber is suitable and The electrode 6 is arranged at a position just corresponding to the back surface side of the formation location of the pressure detecting convex portion 2 of the piezoelectric conductive elastomer sheet 3. The control means 8 is provided to process the electric signal from the electrode 6.

【0011】 そして、図2に示すように、感圧導電性エラストマーシート3の表面には、所 定の規則性をもって、具体的にはこの実施例においては縦横に一定のピッチで、 複数の圧力検出用凸部2…2が一体的に形成されており、而も、各圧力検出用凸 部2の裏面側には夫々、各電極6が配設されている。前記圧力検出用凸部2は、 半球状の基部2aと、該基部2aより更に表面側に突出する棒状(針状)の先端 部2bとから構成されており、基部2a及び先端部2bのいずれに圧力が作用し た場合においても、その表面部から裏面部にわたって変形が生じ、この変形に伴 う電気抵抗変化が電極6より取り出されるようになっている。この場合、必要な らば、先端部2bを廃止して、基部2aのみで圧力検出用凸部2を構成してもよ い。また、単一の圧力検出用凸部2及びこれに対応する電極6を有する構造のみ で単一の感圧センサー1とすることも可能である。As shown in FIG. 2, the surface of the pressure-sensitive conductive elastomer sheet 3 has a certain regularity, specifically, in this embodiment, a plurality of pressures are applied at a constant pitch in the vertical and horizontal directions. 2 are integrally formed, and each electrode 6 is arranged on the back surface side of each pressure detecting protrusion 2. The pressure detecting convex portion 2 is composed of a hemispherical base portion 2a and a rod-shaped (needle-shaped) tip portion 2b protruding further to the surface side than the base portion 2a, and any one of the base portion 2a and the tip portion 2b. Even when pressure is applied to the electrodes, deformation occurs from the front surface portion to the back surface portion, and the electrical resistance change due to this deformation is taken out from the electrode 6. In this case, if necessary, the tip portion 2b may be omitted and the pressure detecting convex portion 2 may be configured only by the base portion 2a. Further, it is also possible to form a single pressure sensitive sensor 1 only by a structure having a single pressure detecting convex portion 2 and an electrode 6 corresponding thereto.

【0012】 前記電極6としては、一対の平行電極或いは櫛歯状電極を用いてもよいが、圧 力検出用凸部2に作用する圧力の方向性を感知することが可能となるように、圧 力検出用凸部2の周縁部下方に複数の電極を配設することが好ましい。その一例 を述べると、図3に示すように、中心電極X1と、その周囲を取り囲む共通電極 X2と、該共通電極X2の周囲に90度の角度間隔で配置された外方電極X3… X3とで構成し、圧力検出用凸部2の中心部下方に前記中心電極X1を配置させ て、圧力検出用凸部2の中心部から下方に作用する圧力を中心電極X1と共通電 極X2との間から取り出し、圧力検出用凸部2の周縁部から下方に作用する個々 の圧力を共通電極X2と外方電極X3…X3との間から取り出すようにするので ある。そして、電極の形状は上記のものに限定されるわけではなく、例えば図4 或いは図5に示す形状としても同様の作用効果が得られ、更には図6に示すよう に外方電極X3…X3の個数を8個或いはその他の個数としてもよく、また中心 電極X1を廃止するようにしてもよい。A pair of parallel electrodes or a comb-shaped electrode may be used as the electrode 6, but it is possible to sense the directionality of the pressure acting on the pressure detecting convex portion 2. It is preferable to dispose a plurality of electrodes below the peripheral portion of the pressure detecting convex portion 2. As an example, as shown in FIG. 3, a center electrode X1, a common electrode X2 surrounding the center electrode X1, and outer electrodes X3 ... X3 arranged around the common electrode X2 at an angular interval of 90 degrees. The central electrode X1 is arranged below the central portion of the pressure detecting convex portion 2, and the pressure acting downward from the central portion of the pressure detecting convex portion 2 is divided between the central electrode X1 and the common electrode X2. The individual pressure acting downward from the peripheral edge of the pressure detecting convex portion 2 is taken out from between the common electrode X2 and the outer electrodes X3 ... X3. The shape of the electrodes is not limited to the above, but similar effects can be obtained with the shape shown in FIG. 4 or 5, and further, as shown in FIG. 6, the outer electrodes X3 ... X3. The number may be eight or any other number, and the center electrode X1 may be eliminated.

【0013】 以上のような構成によれば、図1に示す状態から感圧導電性エラストマーシー ト3の圧力検出用凸部2に圧力が加えられた場合には、該圧力検出用凸部2から 裏面側にわたって感圧導電性エラストマーシート3が圧縮変形を来たし、その電 気抵抗値が低下することになるが、この電気抵抗値の変化は電極6より取り出さ れ、電気信号として制御手段8に送出される。そして、制御手段8は、この電気 信号に基づいて、加圧力の大きさを演算する。この場合、圧力検出用凸部2に対 して、図1に矢印a,b,c,d,eで示すようないかなる圧力が加えられても 、上記のように感圧導電性エラストマーシート3が変形を来たし、電気抵抗変化 が電極6より取り出される。According to the configuration as described above, when pressure is applied to the pressure detecting protrusion 2 of the pressure-sensitive conductive elastomer sheet 3 from the state shown in FIG. 1, the pressure detecting protrusion 2 is pressed. Since the pressure-sensitive conductive elastomer sheet 3 is compressed and deformed from the rear side to the back side, the electric resistance value thereof is lowered, but this change in the electric resistance value is taken out from the electrode 6 and is sent to the control means 8 as an electric signal. Sent out. Then, the control means 8 calculates the magnitude of the pressing force based on this electric signal. In this case, even if any pressure as indicated by arrows a, b, c, d, and e in FIG. 1 is applied to the pressure detecting convex portion 2, as described above, the pressure-sensitive conductive elastomer sheet 3 is formed. Is deformed, and the electric resistance change is taken out from the electrode 6.

【0014】 そして、電極6を、図3乃至図6に例示したような構成としておけば、圧力検 出用凸部2に斜め方向からの圧力や水平方向からの圧力が作用することにより、 感圧導電性エラストマーシート3を電極6の中心に対して不均一に変形させた場 合には、共通電極X2と個々の外方電極X3…X3との間から異なる複数種の電 気信号が取り出されることとなり、制御手段8は、これらの複数種の電気信号に 基づいて、圧力がいかなる方向から作用しているかを判別する。尚、制御手段8 に温度補正処理を行わせるようにしておけば、高精度の圧力検出が行えることと なる。If the electrode 6 is configured as illustrated in FIG. 3 to FIG. 6, the pressure detection convex portion 2 receives a pressure from an oblique direction or a horizontal direction, and When the piezoelectric conductive elastomer sheet 3 is deformed nonuniformly with respect to the center of the electrode 6, a plurality of different types of electric signals are extracted from between the common electrode X2 and the individual outer electrodes X3 ... X3. Then, the control means 8 determines from which direction the pressure is acting based on these plural kinds of electric signals. If the control means 8 is made to perform the temperature correction processing, the pressure can be detected with high accuracy.

【0015】 更に、図2に示すように所定の規則性をもって複数の圧力検出用凸部2及びこ れに対応する電極6…6を設けておけば、例えば一箇所の圧力検出用凸部2にの み圧力が作用した場合には、これに対応する一の電極6より電気抵抗変化が取り 出され、制御手段8は、これに基づいていかなる位置にどの程度の大きさの圧力 が作用しているかを検出する。従って、圧力検出用凸部2の配設ピッチを小さく しておけば、位置検出を高精度に行えることとなる。Further, as shown in FIG. 2, if a plurality of pressure detecting convex portions 2 and electrodes 6 ... 6 corresponding to these are provided with a predetermined regularity, for example, one pressure detecting convex portion 2 is provided. When only the pressure is applied, the electric resistance change is taken out from the corresponding one electrode 6, and the control means 8 applies the pressure of any magnitude to any position based on this. To detect Therefore, if the arrangement pitch of the pressure detecting convex portions 2 is made small, the position can be detected with high accuracy.

【0016】 図7は、本考案の変形例を示すものであって、感圧導電性エラストマーシート 3の表面を柔軟性の良いゴム等でなる絶縁性外皮10で覆ったものである。これ によれば、絶縁性外皮10の作用により感圧導電性エラストマーシート3に対す る内部保護がなされるばかりなく、この絶縁性外皮10の表面に色付けや模様付 け等の装飾を施しておけば、感圧センサー1の外観性の向上が図られる。FIG. 7 shows a modified example of the present invention in which the surface of the pressure-sensitive conductive elastomer sheet 3 is covered with an insulating outer skin 10 made of rubber or the like having good flexibility. According to this, not only the inner protection of the pressure-sensitive conductive elastomer sheet 3 is provided by the action of the insulating outer cover 10, but also the surface of the insulating outer cover 10 is colored or patterned. For example, the appearance of the pressure-sensitive sensor 1 can be improved.

【0017】[0017]

【考案の効果】[Effect of the device]

以上のように本考案に係る感圧センサーによれば、感圧導電性エラストマー部 材の表面側に圧力検出用凸部を形成し且つ該圧力検出用凸部の裏面側に電極を配 設するようにしたから、加圧力は圧力検出用凸部に集中して作用して周囲に分散 されることがなくなり、分解能が向上すると共に、水平方向や傾斜角の小さい斜 め方向の圧力をも検出できることとなり、検出可能な圧力方向の範囲が拡大する ことになる。 また、感圧導電性エラストマー部材の表面側に所定の規則性をもって複数の圧 力検出用凸部を形成し且つこれらに夫々対応する電極を設けておげば、どの位置 にどの程度の大きさの圧力が作用しているかを検出できることとなり、而もその 検出精度は極めて高いものとなる。 As described above, according to the pressure-sensitive sensor of the present invention, the pressure detecting convex portion is formed on the front surface side of the pressure sensitive conductive elastomer member and the electrode is arranged on the back surface side of the pressure detecting convex portion. As a result, the applied pressure is not concentrated on the pressure detection convex portion and is not dispersed to the surroundings, improving the resolution and detecting the pressure in the horizontal direction and the tilt direction with a small inclination angle. This means that the range of pressure that can be detected will be expanded. In addition, if a plurality of convex portions for pressure detection are formed on the surface side of the pressure-sensitive conductive elastomer member with a predetermined regularity and electrodes corresponding to these are provided, the size at any position and at what size It becomes possible to detect whether or not the pressure is acting, and the detection accuracy is extremely high.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案に係る感圧センサーを示す要部縦断正面
図である。
FIG. 1 is a vertical sectional front view of a main part of a pressure-sensitive sensor according to the present invention.

【図2】本考案に係る感圧センサーの全体構成を示す斜
視図である。
FIG. 2 is a perspective view showing the overall configuration of a pressure-sensitive sensor according to the present invention.

【図3】電極の第1の例を示す平面図である。FIG. 3 is a plan view showing a first example of electrodes.

【図4】電極の第2の例を示す平面図である。FIG. 4 is a plan view showing a second example of electrodes.

【図5】電極の第3の例を示す平面図である。FIG. 5 is a plan view showing a third example of electrodes.

【図6】電極の第4の例を示す平面図である。FIG. 6 is a plan view showing a fourth example of electrodes.

【図7】本考案に係る感圧センサーの他の例を示す要部
縦断正面図である。
FIG. 7 is a vertical sectional front view of an essential part showing another example of the pressure-sensitive sensor according to the present invention.

【図8】従来例を示す斜視図である。FIG. 8 is a perspective view showing a conventional example.

【符号の説明】[Explanation of symbols]

1 感圧センサー 2 圧力検出用凸部 3 感圧導電性エラストマー部材 6 電極 1 Pressure-sensitive sensor 2 Pressure-sensitive convex portion 3 Pressure-sensitive conductive elastomer member 6 Electrode

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 感圧導電性エラストマー部材と、該感圧
導電性エラストマー部材の裏面側に配設され且つその変
形に伴う電気抵抗変化を取り出す電極とを有する感圧セ
ンサーにおいて、前記感圧導電性エラストマー部材の表
面側に圧力検出用凸部を形成すると共に、該圧力検出用
凸部が形成されている箇所の裏面側に電極を配設したこ
とを特徴とする感圧センサー。
1. A pressure-sensitive sensor having a pressure-sensitive conductive elastomer member and an electrode arranged on the back surface side of the pressure-sensitive conductive elastomer member for taking out a change in electric resistance due to deformation of the pressure-sensitive conductive elastomer member. A pressure-sensitive sensor characterized in that a pressure-detecting convex portion is formed on a front surface side of a conductive elastomer member, and an electrode is arranged on a rear surface side of a portion where the pressure-detecting convex portion is formed.
【請求項2】 感圧導電性エラストマー部材の表面側に
所定の規則性をもって複数の圧力検出用凸部を形成し、
各圧力検出用凸部の夫々の形成箇所の裏面側に電極を配
設したことを特徴とする請求項1に記載の感圧センサ
ー。
2. A plurality of pressure detecting projections having a predetermined regularity are formed on the surface side of the pressure-sensitive conductive elastomer member,
The pressure-sensitive sensor according to claim 1, wherein an electrode is provided on the back surface side of each formation location of each pressure detection convex portion.
JP1991093746U 1991-10-18 1991-10-18 Pressure sensor Expired - Lifetime JPH0750689Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1991093746U JPH0750689Y2 (en) 1991-10-18 1991-10-18 Pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991093746U JPH0750689Y2 (en) 1991-10-18 1991-10-18 Pressure sensor

Publications (2)

Publication Number Publication Date
JPH0536331U true JPH0536331U (en) 1993-05-18
JPH0750689Y2 JPH0750689Y2 (en) 1995-11-15

Family

ID=14090993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1991093746U Expired - Lifetime JPH0750689Y2 (en) 1991-10-18 1991-10-18 Pressure sensor

Country Status (1)

Country Link
JP (1) JPH0750689Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006337385A (en) * 2006-09-22 2006-12-14 National Institute Of Advanced Industrial & Technology Pressure-sensitive device
KR101876438B1 (en) * 2017-08-10 2018-07-10 숭실대학교산학협력단 Capacitor type tactile sensor based on viscoporoelastic elastomer
US10164632B2 (en) 2015-08-31 2018-12-25 Soongsil University Research Consortium Techno-Park Ionic elastomer based capacitor type tactile sensor and method for manufacturing the same
JP2020067277A (en) * 2018-10-22 2020-04-30 国立大学法人 香川大学 Tactile sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006337385A (en) * 2006-09-22 2006-12-14 National Institute Of Advanced Industrial & Technology Pressure-sensitive device
JP4611268B2 (en) * 2006-09-22 2011-01-12 独立行政法人産業技術総合研究所 Pressure sensitive device
US10164632B2 (en) 2015-08-31 2018-12-25 Soongsil University Research Consortium Techno-Park Ionic elastomer based capacitor type tactile sensor and method for manufacturing the same
KR101876438B1 (en) * 2017-08-10 2018-07-10 숭실대학교산학협력단 Capacitor type tactile sensor based on viscoporoelastic elastomer
JP2020067277A (en) * 2018-10-22 2020-04-30 国立大学法人 香川大学 Tactile sensor

Also Published As

Publication number Publication date
JPH0750689Y2 (en) 1995-11-15

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