JPH03211701A - Sliding contact and its manufacturing method - Google Patents
Sliding contact and its manufacturing methodInfo
- Publication number
- JPH03211701A JPH03211701A JP2006602A JP660290A JPH03211701A JP H03211701 A JPH03211701 A JP H03211701A JP 2006602 A JP2006602 A JP 2006602A JP 660290 A JP660290 A JP 660290A JP H03211701 A JPH03211701 A JP H03211701A
- Authority
- JP
- Japan
- Prior art keywords
- metal piece
- base metal
- piece
- stepped portion
- sliding contact
- 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.)
- Granted
Links
Landscapes
- Adjustable Resistors (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Details Of Resistors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、各種電気機器に利用される可変抵抗器等に用
いる摺動接点およびその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sliding contact used in variable resistors and the like used in various electrical devices, and a method for manufacturing the same.
従来の技術
従来、この種の摺動接点を貴金属材のみで構成する場合
、コスト的に非常に高いものとなるため、卑金属材の先
端のみを貴金属材でスルーレイクラッドした薄板接点材
の打ち抜きおよび曲げ加工による摺動接点が用いられて
いるのが一般的である。第４図（ａ） （ｂ）および第
５図に従来例にもとづ（摺動接点の斜視図と部分断面図
およびその製造方法を示す。第４図において、４１は卑
金属片、４２は貴金属片である。これらの金属片４１．
４２は第５図に見られるように卑金属のインゴット４３
と貴金属のインゴット４４を重ね合わせて高温圧接し、
その後圧延と熱処理を繰り返し行うことによって板状と
され、さらにその後打ち抜きと曲げ加工によって第４図
（ａ） （ｂ）のような形として製造されていた。Conventional technology Conventionally, if this type of sliding contact were constructed only from precious metal materials, the cost would be extremely high, so we have developed a method of punching thin plate contact materials in which only the tip of the base metal material is through-lay clad with precious metal material. Sliding contacts made by bending are generally used. 4(a), (b) and 5 show a perspective view and a partial sectional view of a sliding contact and a manufacturing method thereof based on a conventional example. In FIG. 4, 41 is a base metal piece, 42 is a base metal piece, They are precious metal pieces.These metal pieces 41.
42 is a base metal ingot 43 as seen in Figure 5.
and a precious metal ingot 44 are superimposed and welded under high temperature pressure,
Thereafter, it was made into a plate shape by repeated rolling and heat treatment, and then punched and bent into the shape shown in FIGS. 4(a) and 4(b).
発明が解決しようとする課題
しかしながら、卑金属材と貴金属材とを高温圧接すると
、接合部に拡散層が生じ、圧延と熱処理の繰り返し工程
中に拡散層が膜化し、接合部が剥離しやすくなり、先端
の貴金属部が折れてしまうということがあった。Problems to be Solved by the Invention However, when a base metal material and a noble metal material are welded together under high temperature pressure, a diffusion layer is generated at the joint, and during the repeated rolling and heat treatment process, the diffusion layer becomes a film and the joint becomes easy to peel off. There were cases where the precious metal part at the tip broke off.
すなわち、第４図（ｂ）に見られるように卑金属片４１
と貴金属片４２の接合面は平面的であり、接合面積が小
さく、したがってこの摺動接点を可変抵抗器に組み入れ
て使用する場合、長時間使用すると接合面が剥離し、接
合部で折れるという課題があった。That is, as shown in FIG. 4(b), the base metal piece 41
The bonding surface between the metal piece 42 and the precious metal piece 42 is flat and the bonding area is small. Therefore, when this sliding contact is incorporated into a variable resistor, there is a problem that the bonding surface will peel off and break at the bonded part if used for a long time. was there.
本発明は、このような従来の課題を解決するものであり
、従来の平面接合よりもより多くの接合面積とし、これ
により接合片先端の折れ等がな（、長時間使用において
信頼性の高い摺動接点とその製造方法を提供することを
目的とするものである。The present invention solves these conventional problems, and has a larger bonding area than conventional planar bonding, thereby preventing the tip of the bonding piece from breaking (and ensuring high reliability during long-term use). The object of the present invention is to provide a sliding contact and a method for manufacturing the same.
課題を解決するための手段
本発明は、上記課題を解決するために、一端面に階段状
部を有する薄板状の卑金属片とその卑金属片の前記階段
状部に合致する階段状部を一端面に有する薄板状の貴金
属片とを両者の階段状部を合致させて一体に接合するこ
と、または前記卑金属片と貴金属片との合致形状を前記
階段状に代えて凹凸形状または凸凹形状として両者を合
致させて一体に接合し、その接合片を卑金属片部で折り
曲げて摺動接点を構成したものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a thin base metal piece having a stepped portion on one end surface and a stepped portion matching the stepped portion of the base metal piece on one end surface. and a thin plate-like precious metal piece having the same shape as the base metal piece and the precious metal piece are joined together by aligning the stepped portions of the two pieces, or the matching shape of the base metal piece and the precious metal piece is changed to the stepped shape and is made into an uneven shape or an uneven shape. They are matched and joined together, and the joined piece is bent at the base metal piece to form a sliding contact.
作用
したがって本発明によれば、卑金属片と貴金属片の接合
するそれぞれ一端に階段状部または凹凸形状部を設けて
両者の階段状部または凹凸形状部を合致させて一体に接
合しているため、接合部面積を増加させることができ、
これによって接合部の接着強度が向上し、摺動接点が折
れにくくなるとともに、摺動接点としての信頼性を高め
ることができるものである
実施例
以下本発明の実施例について説明する。Therefore, according to the present invention, a stepped portion or an uneven portion is provided at one end of each of the base metal piece and the precious metal piece where they are joined, and the stepped portions or uneven portions of both pieces are made to match and are joined together. The joint area can be increased,
As a result, the adhesive strength of the joint portion is improved, the sliding contact becomes less likely to break, and the reliability of the sliding contact can be improved.Example Embodiments of the present invention will be described below.
第１図は本発明の第１の実施例、第２図は同第２の実施
例、第３図は同第３の実施例を示しており、各図におい
て、（ａ）は製造工程を説明するための図、（ｂ）は摺
動接点の部分断面図である。以下第１図について本発明
の詳細な説明する。Fig. 1 shows the first embodiment of the present invention, Fig. 2 shows the second embodiment, and Fig. 3 shows the third embodiment of the invention. In each figure, (a) shows the manufacturing process. The figure for explanation, (b) is a partial sectional view of a sliding contact. The present invention will be described in detail below with reference to FIG.
まず第１図（ａ）に示すように、一端面に階段状部を有
する卑金属片１１と前記階段状部に合致する階段状部を
一端面に有する貴金属片１２とを両者の階段状部を合致
させ、その後高温圧接により一体に接合し、その接合体
を圧延と熱処理により薄板状のスルーレイクラッド材と
なし、その薄板状体に貴金属片１１の方から卑金属片１
２にかけて打ち抜きを施すことにより、基部で連結した
接点片もしくは個々の接点片とし、その接点片を卑金属
片部で約９０度に折り曲げて断面が第１図（ｂ）のよう
な逆り字形状の個々の摺動接点とするのである。First, as shown in FIG. 1(a), a base metal piece 11 having a stepped portion on one end surface and a noble metal piece 12 having a stepped portion on one end surface that matches the stepped portion are separated. After that, they are joined together by high-temperature pressure welding, and the joined body is formed into a thin plate-like through-lay clad material by rolling and heat treatment.
2. By punching out contact pieces connected at the base or individual contact pieces, the contact pieces are bent at about 90 degrees at the base metal piece to form an inverted cross-section as shown in Figure 1 (b). These are individual sliding contacts.
第２図は、卑金属片２１と貴金属片２２の接合部に凹部
と凸部を形成して前記凹部と凸部を互いに合致させて接
合したものであり、その他の製造方法は第１図の場合と
同じである。FIG. 2 shows a case in which a concave part and a convex part are formed at the joining part of a base metal piece 21 and a precious metal piece 22, and the concave part and the convex part are aligned with each other and joined.The other manufacturing method is the case of FIG. is the same as
第３図は、卑金属片３１と貴金属片３２の接合部形状を
第２図の場合と逆にした場合であり、その他の製造工程
は前二例の場合と同じである。FIG. 3 shows a case where the shape of the joint between the base metal piece 31 and the noble metal piece 32 is reversed from that in FIG. 2, and the other manufacturing steps are the same as in the previous two examples.
そしてこのようにして得られた摺動接点は、その貴金属
材１２．２２．３２の部分が抵抗器の抵抗面に圧接摺動
するようにして使用される。The thus obtained sliding contact is used in such a way that the noble metal material 12, 22, 32 slides into pressure contact with the resistance surface of the resistor.
発明の効果
上記実施例から明らかなように本発明によれば、卑金属
と貴金属の接合部分の面積が従来の摺動接点に比べて大
きくなるため接着強度が増大し、したがって抵抗面を摺
動する貴金属材の部分を強固に保持できるという効果が
得られる。Effects of the Invention As is clear from the above embodiments, according to the present invention, the area of the joint between the base metal and the noble metal is larger than that of conventional sliding contacts, so the adhesive strength is increased, and therefore the contact surface can slide on the resistive surface. This provides the effect of firmly holding the precious metal part.
第１図（ａ）、第２図（ａ）および第３図（ａ）は本発
明の各実施例による摺動接点の製造方法を説明するため
の図、第１叉（ｂ）、第２図（ｂ）および第３図（ｂ）
は本発明による摺動接点の各実施例の要部断面図、第４
図（ａ） （ｂ）は従来の摺動接点の斜視図と要部断面
図、第５図（ａ） （ｂ）は従来の製造方法を説明する
ための図である。
１１．２１．３１・・・・・・卑金属片、１２，２２゜
３２・・・・・・貴金属片。1(a), 2(a) and 3(a) are diagrams for explaining the method of manufacturing a sliding contact according to each embodiment of the present invention; Figure (b) and Figure 3 (b)
4 is a sectional view of a main part of each embodiment of the sliding contact according to the present invention.
5(a) and 5(b) are perspective views and sectional views of essential parts of a conventional sliding contact, and FIGS. 5(a) and 5(b) are diagrams for explaining the conventional manufacturing method. 11.21.31...Base metal piece, 12,22゜32...Precious metal piece.
Claims (4)
の卑金属片の前記階段状部に合致する階段状部を一端面
に有する薄板状の貴金属片とを両者の階段状部を合致さ
せて一体に接合し、その接合片を卑金属片部で折り曲げ
た摺動接点。(1) A thin base metal piece having a stepped portion on one end surface and a thin noble metal piece having a stepped portion on one end surface that matches the stepped portion of the base metal piece, and the stepped portions of both pieces are brought together. A sliding contact made by joining the two pieces together and bending the joined piece at the base metal piece.
て凹凸形状または凸凹形状とした請求項１記載の摺動接
点。(2) The sliding contact according to claim 1, wherein the mating shape of the base metal piece and the precious metal piece is an uneven shape or an uneven shape instead of a stepped shape.
片の前記階段状部に合致する階段状部を一端面に有する
貴金属片とを両者の階段状部を合致させて高温圧接によ
り一体に接合し、その接合体を圧延と熱処理により薄板
状となし、その薄板状体に前記貴金属片の方から前記卑
金属片にかけて切込みもしくは切断を施こすことにより
個々の接点片とし、その接点片を卑金属片部で折り曲げ
て個々の摺動接点とする摺動接点の製造方法。(3) A piece of base metal having a stepped portion on one end surface and a piece of noble metal having a stepped portion on one end surface that matches the stepped portion of the base metal piece are brought together by high temperature pressure welding with their stepped portions matching. The bonded body is formed into a thin plate by rolling and heat treatment, and the thin plate is cut or cut from the noble metal piece to the base metal piece to form individual contact pieces. A method of manufacturing sliding contacts in which base metal pieces are bent to form individual sliding contacts.
て凹凸形状または凸凹形状とする請求項３記載の摺動接
点の製造方法。(4) The method of manufacturing a sliding contact according to claim 3, wherein the mating shape of the base metal piece and the noble metal piece is replaced with a step-like shape and has an uneven shape or an uneven shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006602A JPH0797521B2 (en) | 1990-01-16 | 1990-01-16 | Sliding contact and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006602A JPH0797521B2 (en) | 1990-01-16 | 1990-01-16 | Sliding contact and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03211701A true JPH03211701A (en) | 1991-09-17 |
| JPH0797521B2 JPH0797521B2 (en) | 1995-10-18 |
Family
ID=11642889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006602A Expired - Fee Related JPH0797521B2 (en) | 1990-01-16 | 1990-01-16 | Sliding contact and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0797521B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8029296B2 (en) | 2000-02-07 | 2011-10-04 | Micro Contacts, Inc. | Carbon fiber electrical contacts formed of composite carbon fiber material |
| US8398413B2 (en) | 2000-02-07 | 2013-03-19 | Micro Contacts, Inc. | Carbon fiber electrical contacts formed of composite material including plural carbon fiber elements bonded together in low-resistance synthetic resin |
| EP4131293A4 (en) * | 2020-03-30 | 2023-09-20 | Tokyo Cosmos Electric Co., Ltd. | MOBILE CONTACT, VARIABLE RESISTANCE, AND METHOD FOR MANUFACTURING A MOBILE CONTACT |
-
1990
- 1990-01-16 JP JP2006602A patent/JPH0797521B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8029296B2 (en) | 2000-02-07 | 2011-10-04 | Micro Contacts, Inc. | Carbon fiber electrical contacts formed of composite carbon fiber material |
| US8398413B2 (en) | 2000-02-07 | 2013-03-19 | Micro Contacts, Inc. | Carbon fiber electrical contacts formed of composite material including plural carbon fiber elements bonded together in low-resistance synthetic resin |
| EP4131293A4 (en) * | 2020-03-30 | 2023-09-20 | Tokyo Cosmos Electric Co., Ltd. | MOBILE CONTACT, VARIABLE RESISTANCE, AND METHOD FOR MANUFACTURING A MOBILE CONTACT |
| US11830642B2 (en) | 2020-03-30 | 2023-11-28 | Tokyo Cosmos Electric Co., Ltd. | Movable contact, variable resistor, and method for manufacturing movable contact |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0797521B2 (en) | 1995-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |