JPH0298022A - Manufacture of electric contact shoe - Google Patents
Manufacture of electric contact shoeInfo
- Publication number
- JPH0298022A JPH0298022A JP25054388A JP25054388A JPH0298022A JP H0298022 A JPH0298022 A JP H0298022A JP 25054388 A JP25054388 A JP 25054388A JP 25054388 A JP25054388 A JP 25054388A JP H0298022 A JPH0298022 A JP H0298022A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- base material
- leg
- thick
- thickness
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 abstract description 2
- 239000010951 brass Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Landscapes
- Manufacture Of Switches (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、スイッチ、リレー、ブレーカ−等に用いる電
気接触子の製造方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a method of manufacturing electrical contacts used for switches, relays, breakers, etc.
（従来の技術）
従来、電気接触子を製造するには、第２図ａに示す如く
台材ｌの接点取付穴２に、リベット型クラッド接点３の
脚部４を挿入し、脚部４の下端を接点取付穴２の下端周
縁に第２図すに示す如くかしめて電気接触子５を作って
いる。(Prior Art) Conventionally, in order to manufacture an electric contact, as shown in FIG. The lower end is caulked to the lower end periphery of the contact mounting hole 2 as shown in FIG. 2 to form an electric contact 5.
（発明が解決しようとする課題）
ところで、上記の電気接触子の製造方法では、リベット
型クラッド接点３の脚部４の下端を、台材１の接点取付
穴２の下端周縁にかしめた際、リベット型クラッド接点
３の頭部６の下側のベース材７に脚部４の付根の部分か
ら第３図に示す如くクラックＣが入り、このクラックＣ
が電気接触子の使用中に頭部６のベース材７と接点材８
との境界面９まで進行し、境界面で脚部４と頭部６が剥
離して、かしめたリベット型クラッド接点３が台材１よ
り脱落することがある。(Problem to be Solved by the Invention) By the way, in the above method for manufacturing an electric contact, when the lower end of the leg portion 4 of the rivet type clad contact 3 is caulked to the lower end periphery of the contact mounting hole 2 of the base material 1, A crack C appears in the base material 7 below the head 6 of the rivet type clad contact 3 from the base of the leg 4 as shown in FIG.
When the electric contact is in use, the base material 7 of the head 6 and the contact material 8
The leg portion 4 and the head portion 6 may separate from each other at the interface 9, and the caulked rivet-type clad contact 3 may fall off from the base material 1.
このようにベース材７にクラックＣが入ったり、クラッ
クＣが進行して境界面で脚部４と頭部６が剥離したりす
るのは、リベット型クラッド接点３の頭部６の厚さに対
し、ベース材７の厚さが約２０％と極めて薄い為と、接
点取付穴２を有する台材１の厚さが薄い為である。即ち
、ベース材７が薄く、接点取付穴２が短いと、かしめ時
接点取付穴２内の脚部４のベース材７′はボリュームが
少なく、頭部６のベース材７は圧潰による外周方向への
変形膨出量が多いので、強度の弱い脚部４の付根部分に
応力が集中し、クラックＣが入り、このクラックＣが使
用中の衝撃により接点材８との境界面９まで進行するか
らである。The reason why cracks C form in the base material 7 or the cracks C progress and cause the legs 4 and head 6 to separate at the interface is due to the thickness of the head 6 of the rivet-type clad contact 3. On the other hand, this is because the base material 7 is extremely thin at about 20%, and the base material 1 having the contact mounting holes 2 is thin. That is, if the base material 7 is thin and the contact mounting hole 2 is short, the base material 7' of the leg part 4 inside the contact mounting hole 2 will have a small volume during caulking, and the base material 7 of the head 6 will be crushed and moved toward the outer periphery. Since the amount of deformation and bulge is large, stress is concentrated at the base of the leg portion 4, which has weak strength, and a crack C occurs, and this crack C progresses to the interface 9 with the contact material 8 due to the impact during use. It is.
そこで本発明は、リベット型クラッド接点を台材へかし
めた際、脚部の付根部分にクラックが入らないようにし
た電気接触子の製造方法を提供しようとするものである
。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method of manufacturing an electric contact that prevents cracks from forming at the bases of the legs when the rivet-type clad contacts are caulked to the base material.
（課題を解決するための手段）
上記課題を解決するための本発明の電気接触子の製造方
法は、厚さ０．５市以下の台材の接点取付穴に、接点頭
部下面側のベース材の厚さが０．２ｍｍ以下で脚部の付
根部分にテーパ外周面又は円弧外周面の太い首部を設け
たリベット型クラッド接点の脚部を挿入し、かしめるこ
とを特徴とするものである。(Means for Solving the Problems) In order to solve the above-mentioned problems, the method for manufacturing an electric contact of the present invention is to attach a base plate on the bottom side of the contact head to a contact mounting hole in a base material having a thickness of 0.5 cm or less. It is characterized by inserting and caulking the legs of a rivet-type clad contact with a material thickness of 0.2 mm or less and a thick neck with a tapered outer circumferential surface or an arcuate outer circumferential surface at the base of the leg. .
本発明の電気接触子の製造方法に於いて、台材の厚さを
０．５ｍｍ以下とし、接点頭部下面側のベース材の厚さ
を０．２＋ｎｍ以下とした理由は、それらの寸法を超え
た場合には脚部４の付根部分にクラックが生じることが
無いからである。また脚部の付根部分にテーパ外周面又
は円弧外周面の太い首部を設けた理由は、台材の厚さ０
．５ｍ＋ｎ以下、接点頭部下面側のベース材の厚さ０．
２＋＋＋＋ｎ以下の場合に脚部４の付根部分にクラック
が生じるのを防ぐためである。In the method for manufacturing an electrical contact of the present invention, the thickness of the base material is set to 0.5 mm or less, and the thickness of the base material on the lower surface of the contact head is set to 0.2+nm or less. This is because, if it exceeds the distance, cracks will not occur at the base portions of the leg portions 4. In addition, the reason for providing a thick neck with a tapered outer circumferential surface or an arcuate outer circumferential surface at the base of the leg is that the thickness of the base material is 0.
．． 5m+n or less, the thickness of the base material on the bottom side of the contact head is 0.
This is to prevent cracks from forming at the base portions of the leg portions 4 when the thickness is less than 2++++n.
（作用）
上述の如く本発明の電気接触子の製造方法は、台材の接
点取付穴に、脚部の付根部分にテーパ外周面又は円弧外
周面の太い首部を設けたリベット型クラッド接点の脚部
を挿入し、かしめるのであるから、台材の厚さが０．５
ｍｍ以下、接点頭部下面側のベース材の厚さ０．２ｍｍ
以下でも接点取付穴内の脚部のベース材のボリュームが
増え、かしめに対する強度が向上し、脚部の付根部分に
クラックが生じることが無い。(Function) As described above, the method for manufacturing an electric contact of the present invention is to produce a leg of a rivet-type clad contact in which a thick neck with a tapered outer circumferential surface or an arcuate outer circumferential surface is provided at the base of the leg in the contact mounting hole of the base material. Since the part is inserted and caulked, the thickness of the base material is 0.5
mm or less, the thickness of the base material on the bottom side of the contact head is 0.2 mm
Even below, the volume of the base material of the leg inside the contact mounting hole increases, the strength against caulking improves, and cracks do not occur at the base of the leg.
（実施例） 本発明の電気接触子の製造方法の一実施例を説明する。(Example) An embodiment of the method for manufacturing an electric contact of the present invention will be described.
第１図ａに示す如く黄銅より成る厚さ０．４ｍｆｆ１．
幅４ｍ１１１、長さ２０ｍｍの台材１の一端部に穿設さ
れた直径φ２，１ｍｍの接点取付穴２に、直径φ４．Ｏ
ｍｍ、厚さ０．７ｍｍの接点頭部６の下面側のベース材
７の厚さが０．１５ｍｍで直径φ２．Ｏｍｍ、長さ１．
５ｍｍの脚部４の付根部分に高さ０．２＋ｎｍで４５度
のテーパ外周面の上端径φ２．４舗の太い首部１０を設
けたリベット型クラッド接点３′の脚部４を首部１０ま
で挿入し、脚部４の下端を接点取付穴２の下端周縁に第
１図すに示す如くかしめて電気接触子５′を得た。As shown in Figure 1a, the thickness is 0.4mff1. made of brass.
A contact mounting hole 2 with a diameter of φ2.1 mm is drilled in one end of a base material 1 with a width of 4 m111 and a length of 20 mm. O
mm, the thickness of the base material 7 on the lower surface side of the contact head 6 of 0.7 mm is 0.15 mm, and the diameter is φ2. Omm, length 1.
Insert the leg 4 of the rivet type clad contact 3', which has a thick neck 10 with a height of 0.2+nm and an upper end diameter of φ2.4 on the tapered outer circumferential surface of 45 degrees at the base of the 5 mm leg 4, up to the neck 10. Then, the lower end of the leg 4 was caulked to the lower end periphery of the contact mounting hole 2 as shown in FIG. 1 to obtain an electric contact 5'.
一方、従来例として第２図ａに示す如〈実施例と同一寸
法、同一材質の台材１の接点取付穴２に、太い首部１０
を有しない他は実施例と同一寸法、同一材質のリベット
型クラッド接点３の脚部４を挿入し、脚部４の下端を接
点取付穴２の下端周縁に第２図すに示す如くかしめて電
気接触子５を得た。On the other hand, as a conventional example, as shown in FIG.
Insert the leg part 4 of the rivet-type clad contact 3, which has the same dimensions and the same material as the embodiment, except that it does not have a An electric contact 5 was obtained.
こうして得た実施例及び従来例の電気接触子各１００個
についてその断面を顕微鏡で検査した処、従来例の電気
接触子５は脚部４の付根部分にクラックが入ったものが
全数あったのに対し、実施例の電気接触子５′にはその
ようなりラブダの入ったものは全く無かった。When the cross sections of each of the 100 electrical contacts of the example and the conventional example thus obtained were examined using a microscope, all of the electrical contacts 5 of the conventional example had cracks at the bases of the legs 4. On the other hand, none of the electrical contacts 5' of the example contained such a labda.
（発明の効果）
以上の説明で判るように本発明の電気接触子の製造方法
は、厚さ０．５ｍｍ以下の薄い台材の接点取付穴に、接
点頭部下面側のベース材の厚さが０．２市以下で脚部の
付根部分に太い首部を設けたリベット型クラッド接点の
脚部を挿入しかしめるのであるから、脚部の付根部分に
クラックが入らず、従って使用中に脚部と頭部が剥離し
てかしめたリベット型クラッド接点が台材より脱落する
ことの無い電気接触子を得ることができるという効果が
ある。(Effects of the Invention) As can be seen from the above explanation, the method for manufacturing an electrical contact of the present invention is to attach the contact mounting hole of the thin base material with a thickness of 0.5 mm or less to the base material on the lower surface side of the contact head. Since the leg of the rivet-type clad contact, which has a thick neck at the base of the leg, is inserted and tightened with a diameter of less than 0.2 degrees, cracks do not form at the base of the leg, and the leg does not break during use. This has the effect that it is possible to obtain an electric contact in which the head of the rivet-type clad contact does not peel off and fall off from the base material.
第１図ａ、ｂは本発明の電気接触子の製造方法を示す図
、第２図ａＳｂは従来の電気接触子の製造方法を示す図
、第３図は従来の製造方法によって得た電気接触子の欠
陥を示す断面図である。
出願人 田中貴金属工業株式会社
第３図
手
続
補
正
書
（方式）
％式％
発明の名称
電気接触子の製造方法
３゜
補正をする者
事件との関係Figures 1a and b are diagrams showing the method of manufacturing an electric contact according to the present invention, Figure 2aSb is a diagram showing a conventional method of manufacturing an electric contact, and Figure 3 is an electric contact obtained by the conventional manufacturing method. FIG. 3 is a cross-sectional view showing a child defect. Applicant: Tanaka Kikinzoku Kogyo Co., Ltd. Figure 3 Procedural amendment (method) % formula % Title of invention: Method of manufacturing electrical contacts 3゜Relationship with the case of the person making the amendment
Claims (1)
部下面側のベース材の厚さが０．２ｍｍ以下で脚部の付
根部分にテーパ外周面又は円弧外周面の太い首部を設け
たリベット型クラッド接点の脚部を挿入し、かしめるこ
とを特徴とする電気接触子の製造方法。1. In the contact mounting hole of the base material with a thickness of 0.5 mm or less, the thickness of the base material on the underside of the contact head is 0.2 mm or less, and the base of the leg has a thick neck with a tapered outer circumferential surface or an arcuate outer circumferential surface. 1. A method for manufacturing an electrical contact, which comprises inserting and caulking a leg portion of a rivet-type clad contact provided with a rivet-type clad contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25054388A JPH0298022A (en) | 1988-10-04 | 1988-10-04 | Manufacture of electric contact shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25054388A JPH0298022A (en) | 1988-10-04 | 1988-10-04 | Manufacture of electric contact shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0298022A true JPH0298022A (en) | 1990-04-10 |
Family
ID=17209473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25054388A Pending JPH0298022A (en) | 1988-10-04 | 1988-10-04 | Manufacture of electric contact shoe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0298022A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49695A (en) * | 1972-04-19 | 1974-01-07 | ||
| JPS6077323A (en) * | 1983-10-04 | 1985-05-01 | 田中貴金属工業株式会社 | Method of producing rivet type composite electric contact |
-
1988
- 1988-10-04 JP JP25054388A patent/JPH0298022A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49695A (en) * | 1972-04-19 | 1974-01-07 | ||
| JPS6077323A (en) * | 1983-10-04 | 1985-05-01 | 田中貴金属工業株式会社 | Method of producing rivet type composite electric contact |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0726615A3 (en) | Electrical contact | |
| EP0984517A3 (en) | Electrical receptacle contact | |
| JPH0298022A (en) | Manufacture of electric contact shoe | |
| JP2823262B2 (en) | Manufacturing method of composite contact strip | |
| JP3058201B2 (en) | Manufacturing method of electrical contacts | |
| JPH0533807B2 (en) | ||
| JP3054699U (en) | Earth metal ring structure for signal plug | |
| JP3085474B2 (en) | Method of manufacturing strip for electrical contact | |
| JPH0346447Y2 (en) | ||
| JP2520719Y2 (en) | Intermediate electrode structure of gas-filled discharge tube type multipole arrester | |
| JPS60108128A (en) | Manufacture of edged plate or the like | |
| JPH04359816A (en) | Insertion-type electric contact | |
| JPH02232983A (en) | Enameled board provided with insertion terminal and manufacture thereof | |
| JPH0197331A (en) | Forming method for rivet type electric contact | |
| JPH0345392Y2 (en) | ||
| JP2582852B2 (en) | Manufacturing method of mold insertion type electrical contact | |
| JPH0334220A (en) | Processing method for rivet type contact | |
| JPH02112310A (en) | Holding structure for crystal resonator | |
| JPS6220671B2 (en) | ||
| JPH02260336A (en) | Manufacture of knurled electric contact | |
| JPH0138331B2 (en) | ||
| JPS6334564B2 (en) | ||
| JPS54108565A (en) | Cathode structure for magnetron | |
| JPS6351331B2 (en) | ||
| JPH02227919A (en) | Rivet type contact |