JPH0797521B2 - Sliding contact and manufacturing method thereof - Google Patents
Sliding contact and manufacturing method thereofInfo
- Publication number
- JPH0797521B2 JPH0797521B2 JP2006602A JP660290A JPH0797521B2 JP H0797521 B2 JPH0797521 B2 JP H0797521B2 JP 2006602 A JP2006602 A JP 2006602A JP 660290 A JP660290 A JP 660290A JP H0797521 B2 JPH0797521 B2 JP H0797521B2
- Authority
- JP
- Japan
- Prior art keywords
- metal piece
- base metal
- sliding contact
- stepped portion
- piece
- 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 - Fee Related
Links
Landscapes
- Details Of Resistors (AREA)
- Adjustable Resistors (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
- Manufacturing Of Electrical Connectors (AREA)
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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding contact used for a variable resistor used in various electric devices and a method for manufacturing the sliding contact.
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く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, when a sliding contact of this type is composed of only a precious metal material, the cost is very high.Therefore, it is necessary to punch a thin plate contact material that is through-laid with a precious metal material only at the tip of a base metal material. Generally, a sliding contact made by bending is used. 4 (a) (b) and FIG. 5 show a perspective view and a partial cross-sectional view of a sliding contact according to a conventional example, and a manufacturing method thereof. In FIG. 4, 41 is a base metal piece and 42 is a noble metal piece. As shown in FIG. 5, these metal pieces 41, 42 are formed into a plate by superposing a base metal ingot 43 and a noble metal ingot 44 and press-welding them at high temperature, and then repeatedly performing rolling and heat treatment, and then punching. And Fig. 4 (a) and (b) by bending
It was manufactured as a shape like.
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。However, when the base metal material and the noble metal material are pressure-welded at high temperature, a diffusion layer is formed in the joint portion, the diffusion layer is formed into a film during the repeated steps of rolling and heat treatment, and the joint portion is easily peeled off, The noble metal part at the tip sometimes broke.
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 joint surface of the base metal piece 41 and the noble metal piece 42 is flat, and the joint area is small. Therefore, when this sliding contact is incorporated in a variable resistor, When used for a long time, there is a problem that the joint surface peels off and the joint portion breaks.
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く、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 is to solve such a conventional problem, and has a larger bonding area than that of the conventional planar bonding, whereby there is no breakage of the tip of the bonding piece, and a highly reliable sliding surface is used for a long time. It is an object of the present invention to provide a moving contact and a manufacturing method thereof.
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 Problem The present invention, in order to solve the above problems, a thin plate-shaped base metal piece having a stepped portion on one end surface and a stepped portion that matches the stepped portion of the base metal piece on one end surface A thin plate-shaped noble metal piece having a stepwise portion of both of them to be joined integrally, or instead of the base metal piece and the noble metal piece matching shape to the stepped shape as an uneven shape or an uneven shape The sliding contacts are formed by matching and integrally joining and bending the joining piece at the base metal piece portion.
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。Effect According to the present invention, since the stepped portion or the uneven portion is provided at each one end of the base metal piece and the noble metal piece to be joined, and the stepped portions or the uneven portion of both are matched and integrally joined, The joint area can be increased,
As a result, the bonding strength of the joint portion is improved, the sliding contact is less likely to be broken, and the reliability as the sliding contact can be improved. EXAMPLES Examples 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
を詳しく説明する。FIG. 1 shows the first embodiment of the present invention, FIG. 2 shows the second embodiment, and FIG. 3 shows the third embodiment. In each drawing, (a) shows a manufacturing process. FIG. 3B is a partial cross-sectional view of the sliding contact for explanation. 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に合致さ
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12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Ｌ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 step portion on one end surface and a noble metal piece 12 having a step portion matching the step portion on one end surface are formed on both step portions. After they are matched, they are integrally joined by high-temperature pressure welding, the joined body is made into a thin plate-shaped through-lay clad material by rolling and heat treatment, and the thin plate-shaped body is punched from the precious metal piece 11 to the base metal piece 12. , A contact piece or an individual contact piece connected at the base, and the contact piece is bent at about 90 degrees with a base metal piece to form an individual sliding contact with an inverted L-shape as shown in Fig. 1 (b). To do.
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 portion and a convex portion are formed at the joint portion of the base metal piece 21 and the noble metal piece 22, and the concave portion and the convex portion are made to match each other and joined, and 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 the shape of the joint between the base metal piece 31 and the noble metal piece 32 in the second part.
The case is reversed from the case of the figure, and the other manufacturing steps are the same as in the cases of 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
片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 so that the noble metal pieces 12, 22, 32 are pressed against and slide on 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 According to the present invention, as is apparent from the above-described embodiments, the area of the joining portion of the base metal and the noble metal is larger than that of the conventional sliding contact, so that the adhesive strength is increased and therefore the resistance surface slides. The effect that the part of the noble metal material can be firmly held is obtained.
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図（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 views for explaining a method for manufacturing a sliding contact according to each embodiment of the present invention, FIGS. 1 (b) and 2 Figure (b) and Figure 3 (b)
Is a cross-sectional view of a main part of each embodiment of the sliding contact according to the present invention,
FIGS. 5 (a) and 5 (b) are perspective views and cross-sectional views of a main part of a conventional sliding contact, and FIGS. 5 (a) and 5 (b) are views for explaining a conventional manufacturing method. 11,21,31 …… Base metal pieces, 12,22,32 …… Precious metal pieces.
Claims (4)
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し、その接合片を卑金属片部で折
り曲げた摺動接点。1. A stepped portion of both of a thin plate-shaped base metal piece having a stepped portion on one end surface and a thin plate-shaped noble metal piece having a stepped portion matching the stepped portion of the base metal piece on one end surface. A sliding contact made by matching and joining together and bending the joining piece at the base metal piece.
に代え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 matching shape of the base metal piece and the noble metal piece is replaced by a step shape to have an uneven shape or an uneven shape.
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 base metal piece having a stepped portion on one end surface and a noble metal piece having a stepped portion on one end surface that matches the stepped portion of the base metal piece are brought into contact with each other at the high temperature pressure welding. Are joined together, and the joined body is made into a thin plate shape by rolling and heat treatment, and individual contact pieces are made by cutting or cutting the thin plate body from the precious metal piece to the base metal piece. A method for manufacturing a sliding contact in which a piece is bent at a base metal piece to form each sliding contact.
に代え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 for producing a sliding contact according to claim 3, wherein the matching shape of the base metal piece and the noble metal piece is replaced by a step shape to form 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 JPH03211701A (en) | 1991-09-17 |
| JPH0797521B2 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US8029296B2 (en) | 2000-02-07 | 2011-10-04 | Micro Contacts, Inc. | Carbon fiber electrical contacts formed of composite carbon fiber material |
| JP7472271B2 (en) | 2020-03-30 | 2024-04-22 | 東京コスモス電機株式会社 | Movable contact, variable resistor, and method of manufacturing the movable contact |
-
1990
- 1990-01-16 JP JP2006602A patent/JPH0797521B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03211701A (en) | 1991-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |