JP3002849U - Cord switch - Google Patents
Cord switchInfo
- Publication number
- JP3002849U JP3002849U JP1994004692U JP469294U JP3002849U JP 3002849 U JP3002849 U JP 3002849U JP 1994004692 U JP1994004692 U JP 1994004692U JP 469294 U JP469294 U JP 469294U JP 3002849 U JP3002849 U JP 3002849U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- cord
- rubber material
- conductive rubber
- wire
- 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 - Lifetime
Links
Landscapes
- Push-Button Switches (AREA)
- Insulated Conductors (AREA)
Abstract
(57)【要約】
【目的】 本考案は歩留まりよく製造し得且つ安価なコ
ードスイッチを提供することを目的とするものである。
【構成】 本考案は接点線の周囲を導電ゴム材にて被覆
するとともに該接点線を導電ゴム材の膨張縮小変形に追
従可能な編線にて構成したコードスイッチにある。
(57) [Summary] [Object] An object of the present invention is to provide an inexpensive cord switch which can be manufactured with high yield. According to the present invention, there is provided a cord switch in which the periphery of a contact wire is covered with a conductive rubber material and the contact wire is composed of a braided wire capable of following expansion / contraction deformation of the conductive rubber material.
Description
【0001】[0001]
この考案は長手方向のどの部分を押圧しても導電してスイッチ作用をするコー ドスイッチに関するものである。 The present invention relates to a code switch that conducts a switch action by conducting electricity no matter which part in the longitudinal direction is pressed.
【0002】[0002]
この種のコードスイッチとして出願人は実開昭62−100644号公報等に て被圧導電性弾性体を挟んで一対の接点線を配し、その外側をコード部材にて被 覆する構成を提案したが、被圧導電性弾性体は高価で且つコードスイッチ用とす るための加工に多くの工程を要して製品のコスト高を招くので、被圧導電性弾性 体を排してその分を被圧導電用の間隙として存置して接点線を対峙させる構成を 試行した。 As a cord switch of this type, the applicant proposes a structure in which a pair of contact wires are arranged with a conductive elastic body to be pressed in between and the outside is covered with a cord member in Japanese Utility Model Laid-Open No. 62-100644. However, the pressurized conductive elastic body is expensive, and many steps are required for processing for use in the cord switch, which increases the cost of the product. We tried to construct a structure in which the contact lines are opposed to each other by leaving as a gap for pressure conduction.
【0003】[0003]
この試行中、被圧導電性弾性体が存在しないことによりコード部材から接点線 が剥離すると即短絡してしまうという問題が生じたが、これは接点線の周囲をカ ーボン等混入の導電ゴム材にて被覆することによりコード部材との喰付き力を向 上することに解消した。しかしながらこれらを押出し成形機により一体に押出し 成形すると、加硫の熱によって膨張していた導電ゴム材が常温に冷めて縮小して ゆくに従って、膨張率が極端に異なるためにほとんど縮小変化しない銅縒線等の 接点線との間で剥離部分が生じ、また剥離しないときには導電ゴム材が縮小した 長さの差分において接点線がひきつって蛇行変形し、ひいてはコードスイッチ自 体が異形化してしまうという課題が生じた。 During this trial, there was a problem that the contact wire was short-circuited when the contact wire peeled off from the cord member due to the absence of the conductive elastic body under pressure. This was due to the conductive rubber material mixed with carbon around the contact wire. It was resolved to improve the biting force with the cord member by coating with. However, if these are extruded together with an extrusion molding machine, the conductive rubber material that has expanded due to the heat of vulcanization cools to room temperature and shrinks, and as the expansion coefficient changes drastically, there is almost no contraction or change. There is a problem that a peeling part occurs between the contact wire such as a wire, and when it does not peel off, the conductive rubber material contracts and the contact wire will be meandering deformed due to the difference in length, and the cord switch itself will be deformed. Occurred.
【0004】[0004]
本考案は接点線の周囲を導電ゴム材にて被覆するとともに該接点線を導電ゴム 材の膨張縮小変形に追従可能な編線にて構成して、かかる課題を解決しようとす るものである。 The present invention intends to solve such a problem by covering the periphery of the contact wire with a conductive rubber material and constructing the contact wire with a braided wire capable of following expansion and contraction deformation of the conductive rubber material. .
【0005】[0005]
本考案はコードスイッチの接点線の周囲を導電ゴム材にて被覆したので、コー ド部材との喰付き力が格段に向上し、また接点線を導電ゴム材の膨張縮小変形に 追従可能な編線にて構成したことにより、編線は押出し成形後の加硫成形熱によ る導電ゴム材の膨張変形とおよび常温状態への縮小変形とに追従することとなる 。 In the present invention, since the periphery of the contact wire of the cord switch is covered with the conductive rubber material, the biting force with the cord member is remarkably improved, and the contact wire can follow the expansion / contraction deformation of the conductive rubber material. Since the braided wire is configured with the wire, the braided wire follows the expansion deformation of the conductive rubber material due to the heat of the vulcanization molding after the extrusion molding and the contraction deformation to the normal temperature state.
【0006】[0006]
以下図面に基づいて実施例を説明する。 Embodiments will be described below with reference to the drawings.
【0007】 図1は本考案の第1実施例のコードスイッチを示すもので、銅線などの細線を バイアスに編んでなる丸編線1a,1bと、各丸編線1a,1bをゴム材にカーボン粉等 の混入にて形成する導電ゴム材2にて被覆して接点線とし、これらを外からの押 圧により接触可能な被圧導電用の間隙3を置いて対面配設し、その周囲をシリコ ンゴム等の弾性復元性に優れたコード部材4にて被覆する。その製造は押出し成 形機(図示せず)により同時一体的に押出し加工して後引き続き加硫成形するの である。FIG. 1 shows a cord switch according to a first embodiment of the present invention, in which circular braided wires 1a and 1b made by braiding thin wires such as copper wires with a bias, and circular braided wires 1a and 1b are made of rubber material. Is covered with a conductive rubber material 2 formed by mixing carbon powder or the like into contact wires, and these are arranged face-to-face with a pressure-conducting gap 3 which can be contacted by an external pressure. The periphery is covered with a cord member 4 such as silicone rubber which has an excellent elastic recovery property. The production is carried out by simultaneously extruding by an extrusion molding machine (not shown), followed by vulcanization molding.
【0008】 編線1a,1bは導電ゴム材2,2に被覆されていて、この導電ゴム材2,2がコ ード部材4に喰付くので、丸編線を直にコード部材4に喰付かせるのに較べて喰 付き力が格段に向上して押圧時の変形や折曲げなどにより剥離するおそれがなく 、さらに押圧された時に直接に接触するのが導電ゴム材2であるため、導電ゴム 2が緩衝的役割を果たすことによって永年使用による丸編線の摩耗,損傷を可及 的に防止することができることとなる。Since the braided wires 1a and 1b are covered with the conductive rubber materials 2 and 2, and the conductive rubber materials 2 and 2 stick to the cord member 4, the circular braid wire is directly fed to the cord member 4. The biting force is significantly improved as compared with the case of applying it, and there is no risk of peeling due to deformation or bending when pressed, and since the conductive rubber material 2 is in direct contact when pressed, the conductive Since rubber 2 plays a cushioning role, it is possible to prevent wear and damage of the circular braided wire due to long-term use as much as possible.
【0009】 また丸編線1a,1bはバイアスに編んであるため適度の伸縮が可能であり、従っ て導電ゴム材2の加硫熱による膨張変形(伸長)とその後の縮小変形に充分に追 従することができるので、製造工程における剥離やひきつれによる蛇行変形など が生じないこととなる。Further, since the circular knitted wires 1a and 1b are knitted into a bias, they can be appropriately expanded and contracted, so that the conductive rubber material 2 can be sufficiently expanded and expanded (expanded) due to vulcanization heat and the subsequent contracted deformation. Therefore, the meandering deformation due to peeling or tightness in the manufacturing process does not occur.
【0010】 図2は本考案の第2実施例を示すもので、導電ゴム材2にて被覆した2本の丸 編線1a,1bからなる接点線の平行配設と、該接点線上に対面して両接点線間に架 橋する幅を有する導電ゴム材のブリッジ導体5を被圧導電用の間隙3を置いて配 設し、接点線間よりブリッジ導体5側に向けて突出する支天突条6を延出しつつ コード部材4にて被覆してコードスイッチとするのである。FIG. 2 shows a second embodiment of the present invention, in which the contact lines composed of two circular braided wires 1a and 1b covered with a conductive rubber material 2 are arranged in parallel and face each other on the contact lines. Then, a bridge conductor 5 made of a conductive rubber material having a width bridging between both contact lines is arranged with a gap 3 for pressure-conducting conduction, and a supporting member protruding from between the contact lines toward the bridge conductor 5 side. The protrusion 6 is extended and covered with the cord member 4 to form a cord switch.
【0011】 この実施例のコードスイッチはブリッジ導体5を伸縮性を有する導電ゴム材2 としたので、通常の平滑面に設置することができるのは当然のほか、ブリッジ導 体5側を外側に向けて、例えば曲折部を有する無人運搬車のバンパー(図示せず )などにも無理なく曲折設置することができることとなり、しかも支天突条6が あるために曲折部における曲げ圧力によってブリッジ導体5が接点線に近づくこ とが避けられるので、曲折のみの影響による通電は確実に防止されることとなる 。勿論検知すべき大きな押圧力が加わるときは、支天突条6はつぶれ変形するの で、ブリッジ導体5は接点線間に架橋接触して通電させコードスイッチはスイッ チ作用をすることとなる。In the cord switch of this embodiment, since the bridge conductor 5 is made of the conductive rubber material 2 having elasticity, it can be naturally installed on a smooth surface, and the bridge conductor 5 side is placed outside. In this way, the bridge conductor 5 can be easily bent and installed, for example, on a bumper (not shown) of an unmanned vehicle having a bent portion, and since the supporting projections 6 are provided, the bridge conductor 5 is bent by the bending pressure at the bent portion. Since it is possible to prevent the power from approaching the contact line, it is possible to reliably prevent the energization due to the influence of only bending. Of course, when a large pressing force to be detected is applied, the supporting projection 6 is crushed and deformed, so that the bridge conductor 5 is bridge-contacted between the contact lines to be energized and the cord switch acts as a switch.
【0012】 図3は本考案の第3実施例を示すもので、導電ゴム材2にて被覆した2本の丸 編線1a,1bからなる接点線の平行配設と、該接点線上に対面して両接点線間に架 橋する幅を有する導電ゴム材のブリッジ導体5を被圧導電用の間隙3を置いて配 設し、これらをコード部材4にて被覆して以ってコードスイッチを構成し、この コード部材4のブリッジ導体5の上面の一部または全長に亘って接点線近くに達 する切線7を1乃至複数列において設けたものである。FIG. 3 shows a third embodiment of the present invention, in which the contact lines composed of two circular braided wires 1a and 1b covered with a conductive rubber material 2 are arranged in parallel and face each other on the contact lines. Then, a bridge conductor 5 made of a conductive rubber material having a width bridging between both contact lines is arranged with a gap 3 for pressure conduction being provided, and these are covered with a cord member 4 to form a cord switch. Of the bridge member 5 of the cord member 4 is provided in one or a plurality of rows along a part or the entire length of the upper surface of the bridge conductor 5 to reach near the contact line.
【0013】 このコードスイッチは切線8部分が展開することによってブリッジ導体5側の 緊張が解かれるので、屈曲配線や曲面配線がより容易にできることとなり、曲げ 圧や捩り圧によって無用に導電することが避けられることとなる。In this cord switch, since the tension on the bridge conductor 5 side is released by expanding the cut line 8, the bent wiring and the curved wiring can be made more easily, and the conductive force can be unnecessarily applied by bending pressure or twisting pressure. It will be avoided.
【0014】 図4は本考案の第4実施例を示し、接点線間よりブリッジ導体5側に向けて突 出する支天突条6を設けたものであり、図5(a)(b)は第5実施例で、さらに接点 線とブリッジ導体5の両側外に被圧導電用の間隙3の延長部3a,3bを設けて、該 延長部3a,3b内に接点線側よりブリッジ導体5側に突出する支天突条6a,6bを設 け、または延長部3a,3b内に向き合い形の支天突条6c,6dを設けた例を示してい て、切線7を設ける点は第3実施例に同じであり、各支天突条の作用は第2実施 例に同じである。FIG. 4 shows a fourth embodiment of the present invention, in which a support projection 6 protruding from between the contact wires toward the bridge conductor 5 side is provided. Is a fifth embodiment, in which extension portions 3a and 3b of the gap 3 for pressure conduction are provided outside both sides of the contact wire and the bridge conductor 5, and the bridge conductor 5 is provided in the extension portions 3a and 3b from the contact wire side. It shows an example in which supporting projections 6a and 6b projecting to the side are provided or facing supporting projections 6c and 6d are provided in the extension portions 3a and 3b, and the point where the cutting line 7 is provided is the third point. This is the same as the embodiment, and the action of each ridge projection is the same as in the second embodiment.
【0015】 図6乃至図7は本考案の第6実施例を示すもので、導電ゴム材2にて被覆した 丸編線1a,1b,1c,1dからなる4本の接点線を形成し、該接点線を等間隔にて平 行配設し、該接点線列上の中央に対面し且つ比較的大きな被圧導電用の間隙3を 置いて導電ゴム材のブリッジ導体5を配設して、これらの外側をコード部材4に て被覆して一体に成形するのである。なおブリッジ導体5は隣接する2本の接点 線間に確実に架橋する幅をもって形成されている。6 to 7 show a sixth embodiment of the present invention, in which four contact wires composed of circular braided wires 1a, 1b, 1c and 1d coated with a conductive rubber material 2 are formed, The contact lines are arranged in parallel at equal intervals, and a bridge conductor 5 made of a conductive rubber material is arranged so as to face the center of the contact line array and to leave a relatively large gap 3 for conducting pressure. The outside of these is covered with the cord member 4 and integrally molded. The bridge conductor 5 is formed with a width that reliably bridges between two adjacent contact lines.
【0016】 以上のように構成したコードスイッチは図7(a)(b)(c)に示すように、押圧の 方向によってブリッジ導体5が架橋接触する2本の接点線の組合わせがかわるの で、この導電ラインを識別することにより押圧の方向を検知することができるも のである。なお、ブリッジ導体が3本以上の接点線間に架橋接触して導電させる 場合が生じ得ても、すべての接点線が同時に導電しない限りにおいては検知器側 の設計処理により方向を特定することが可能である。In the cord switch configured as described above, as shown in FIGS. 7 (a), (b) and (c), the combination of two contact lines in which the bridge conductor 5 cross-links is changed depending on the pressing direction. Therefore, the direction of pressing can be detected by identifying this conductive line. Even if a bridge conductor may cross-link between three or more contact lines to conduct electricity, the direction can be specified by the design process on the detector side unless all contact lines conduct simultaneously. It is possible.
【0017】 この方向検知型のコードスイッチは、例えばロボットや無人運搬車などに取付 けると接触したときの接触物の位置方向が検知されるので、従来ならばその場で 停止してとどまるしかなかったところを接触物の逆側に直ちに反転回避して引き 続いて作業ができることとなり、事故防止や中断時間を一掃するセンサー手段と して用途は大きく広がるものである。This direction detection type cord switch detects the position direction of the contacting object when it is contacted when it is attached to, for example, a robot or an unmanned guided vehicle, and therefore, conventionally, it has to be stopped at the spot. Since it is possible to immediately avoid reversing to the opposite side of the contact object and continue the work, the application will greatly expand as a sensor means for preventing accidents and eliminating interruption time.
【0018】 以上実施例において編線は丸編線にて説明してきたが、断面視楕円形や角形に 編んだ編線を用いても作用効果は同様である。Although the braided wire has been described as a circular braided wire in the above embodiments, the same effect can be obtained by using a braided wire braided into an elliptical shape or a rectangular shape in cross section.
【0019】[0019]
本考案は以上のようにして、コードスイッチにおける接点線の周囲を導電ゴム 材にて被覆するとともに該接点線を導電ゴム材の膨張縮小変形に追従可能な編線 にて構成したので、導電ゴム材とコード部材間の喰付き力により接点線がコード 部材から剥離するおそれが確実に解消するとともに、熱膨張,縮小する導電ゴム 材と編線間の剥離やひきつれによる蛇行変形が防止されて品質を安定向上し且つ 安価なコードスイッチを提供することができるという効果を生ずる。 As described above, according to the present invention, since the periphery of the contact wire in the cord switch is covered with the conductive rubber material and the contact wire is formed by the braided wire which can follow the expansion / contraction deformation of the conductive rubber material, The risk that the contact wire may peel off from the cord member due to the biting force between the material and the cord member is reliably eliminated, and the meandering deformation due to the peeling between the conductive rubber material and the braiding wire, which expands and contracts due to thermal expansion and shrinkage, is prevented. There is an effect that it is possible to provide a cheap and inexpensive cord switch.
【図1】 第1実施例を示す端面図である。FIG. 1 is an end view showing a first embodiment.
【図2】 第2実施例の端面図である。FIG. 2 is an end view of the second embodiment.
【図3】 第3実施例を示す部分斜視図である。FIG. 3 is a partial perspective view showing a third embodiment.
【図4】 第4実施例の端面図である。FIG. 4 is an end view of the fourth embodiment.
【図5】 (a)(b)とも第5実施例を示す端面図である。5 (a) and 5 (b) are end views showing a fifth embodiment.
【図6】 第6実施例の端面図である。FIG. 6 is an end view of the sixth embodiment.
【図7】 同、作用例図である。FIG. 7 is an operation example diagram of the same.
1a,1b,1c,1dは編線 2は導電ゴム材 3は被圧導電用の間隙 4はコード部材 5はブリッジ導体 6,6a,6b,6c,6dは支天突条 7は切線 1a, 1b, 1c and 1d are braided wires 2 are conductive rubber materials 3 are pressure conductive gaps 4 are cord members 5 are bridge conductors 6, 6a, 6b, 6c, 6d are ridged projections 7 are cut lines
Claims (6)
一対の接点線の外側を復元性を有するコード部材にて保
形被覆しつつ押出し成形機により一体に成形するコード
スイッチにおいて、前記接点線の周囲を導電ゴム材にて
被覆するとともに該接点線を前記導電ゴム材の膨張縮小
変形に追従可能な編線にて構成したことを特徴とするコ
ードスイッチ。1. A cord switch in which the outside of a pair of contact lines facing each other with a gap for pressure conduction being formed is integrally molded by an extrusion molding machine while being shape-covered with a cord member having resilience. A cord switch, wherein the contact wire is covered with a conductive rubber material, and the contact wire is formed of a braided wire capable of following expansion and contraction deformation of the conductive rubber material.
と、当該接点線上に被圧導電用の間隙を置いて対面配設
するブリッジ導体の外側を復元性を有するコード部材に
て保形被覆し且つ該コード部材の前記一対の接点線間に
前記ブリッジ導体側に突出する支天突条を設けるように
して押出し成形機により一体に成形するコードスイッチ
において、前記接点線の周囲を導電ゴム材にて被覆する
とともに該接点線を前記導電ゴム材の膨張縮小変形に追
従可能な編線にて構成したことを特徴とするコードスイ
ッチ。2. A pair of contact lines arranged in parallel at a distance and a bridge conductor arranged opposite to each other with a gap for conducting pressure being provided on the contact lines are kept by a cord member having a restoring property. In a cord switch integrally formed by an extrusion molding machine so as to form a supporting projection that protrudes toward the bridge conductor between the pair of contact lines of the cord member, the periphery of the contact line is electrically conductive. A cord switch, characterized in that the cord wire is covered with a rubber material, and the contact line is composed of a braided wire capable of following expansion and contraction deformation of the conductive rubber material.
と、当該接点線上に被圧導電用の間隙を置いて対面配設
するブリッジ導体の外側を復元性を有するコード部材に
て保形被覆しつつ押出し成形機により一体に成形するコ
ードスイッチであって該コード部材の前記ブリッジ導体
側の上面の一部または全長に接点線近くに達する切線を
1乃至複数列において設けるコードスイッチにおいて、
前記接点線の周囲を導電ゴム材にて被覆するとともに該
接点線を前記導電ゴム材の膨張縮小変形に追従可能な編
線にて構成したことを特徴とするコードスイッチ。3. A pair of contact lines arranged in parallel at a distance, and the outside of a bridge conductor arranged face-to-face with a gap for conducting pressure on the contact lines are protected by a cord member having a restoring property. A cord switch which is integrally molded by an extrusion molding machine while shape-covering, in which one or a plurality of rows of cutting lines reaching near contact lines are provided in a part or the entire length of the upper surface of the cord member on the bridge conductor side,
A cord switch, wherein the contact wire is covered with a conductive rubber material, and the contact wire is formed of a braided wire capable of following expansion and contraction deformation of the conductive rubber material.
前記ブリッジ導体側に突出する支天突条を設けた請求項
3記載のコードスイッチ4. The cord switch according to claim 3, further comprising a support projection that protrudes toward the bridge conductor between the pair of contact lines of the cord member.
被圧導電用の間隙の延長部を設けて、該延長部に接点線
側よりブリッジ導体側に突出する支天突条を設け、また
は向き合い形の支天突条を設けた請求項3または4のい
ずれかに記載のコードスイッチ。5. A pair of contact lines and an extension portion of a gap for pressure conduction are provided outside both sides of the bridge conductor, and the extension portion is provided with a support projection protruding from the contact line side to the bridge conductor side. Alternatively, the cord switch according to claim 3 or 4, which is provided with facing ridges.
線と、該接点線列上に被圧導電用の間隙を置いて対面配
設し、且つ少なくとも隣接する前記接点線の2本間に架
橋する幅をもったブリッジ導体とを復元性を有するコー
ド部材にて保形被覆しつつ押出し成形機により一体に成
形するコードスイッチにおいて、前記接点線の周囲を導
電ゴム材にて被覆するとともに該接点線を前記導電ゴム
材の膨張縮小変形に追従可能な編線にて構成したことを
特徴とするコードスイッチ。6. A large number of contact wires arranged in parallel at a distance, and at least two adjacent contact wires arranged facing each other with a gap for conducting the pressure being applied on the contact wire row. In a cord switch in which a bridge conductor having a width bridging with a shape is shape-coated with a cord member having resilience and integrally molded by an extrusion molding machine, the periphery of the contact line is coated with a conductive rubber material. A cord switch, wherein the contact line is formed by a braided wire that can follow expansion and contraction deformation of the conductive rubber material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1994004692U JP3002849U (en) | 1994-04-07 | 1994-04-07 | Cord switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1994004692U JP3002849U (en) | 1994-04-07 | 1994-04-07 | Cord switch |
Publications (1)
Publication Number | Publication Date |
---|---|
JP3002849U true JP3002849U (en) | 1994-10-04 |
Family
ID=43138812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1994004692U Expired - Lifetime JP3002849U (en) | 1994-04-07 | 1994-04-07 | Cord switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3002849U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001060423A (en) * | 1999-08-23 | 2001-03-06 | Bridgestone Corp | Pressure sensitive switch |
JP2001076580A (en) * | 1999-09-09 | 2001-03-23 | Tokyo Sensor:Kk | Long switch and its manufacturing method |
JP2001174348A (en) * | 1999-12-21 | 2001-06-29 | Sumitomo Wiring Syst Ltd | Pressure sensor |
JP2017033790A (en) * | 2015-08-03 | 2017-02-09 | 日立金属株式会社 | Pressure sensible sensor and manufacturing method of pressure sensible sensor |
-
1994
- 1994-04-07 JP JP1994004692U patent/JP3002849U/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001060423A (en) * | 1999-08-23 | 2001-03-06 | Bridgestone Corp | Pressure sensitive switch |
JP2001076580A (en) * | 1999-09-09 | 2001-03-23 | Tokyo Sensor:Kk | Long switch and its manufacturing method |
JP2001174348A (en) * | 1999-12-21 | 2001-06-29 | Sumitomo Wiring Syst Ltd | Pressure sensor |
JP3473530B2 (en) | 1999-12-21 | 2003-12-08 | 住友電装株式会社 | Pressure sensor |
JP2017033790A (en) * | 2015-08-03 | 2017-02-09 | 日立金属株式会社 | Pressure sensible sensor and manufacturing method of pressure sensible sensor |
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