JP3058201B2 - Manufacturing method of electrical contacts - Google Patents
Manufacturing method of electrical contactsInfo
- Publication number
- JP3058201B2 JP3058201B2 JP3171633A JP17163391A JP3058201B2 JP 3058201 B2 JP3058201 B2 JP 3058201B2 JP 3171633 A JP3171633 A JP 3171633A JP 17163391 A JP17163391 A JP 17163391A JP 3058201 B2 JP3058201 B2 JP 3058201B2
- Authority
- JP
- Japan
- Prior art keywords
- contact material
- contact
- mounting hole
- manufacturing
- base material
- 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
- Contacts (AREA)
- Manufacture Of Switches (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電気接点の製造方法に係
り、特に台材に接点材を面一にかしめた電気接点の製造
方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an electric contact, and more particularly to an improvement in a method for manufacturing an electric contact in which a contact material is caulked on a base material.
【０００２】[0002]
【従来の技術】従来、台材に接点材を面一にかしめた電
気接点を作るには、図５に示すように台材１に接点材取
付穴２を明け、次にその接点材取付穴２の上端周縁及び
下端周縁に図６に示すようにテーパ３、４を付し、次い
で接点材取付穴２に図７に示すように接点材５を貫通
し、然る後接点材５を上下両側より圧潰して図８に示す
ように台材１の上下両面と面一にテーパ３、４にかしめ
ている。2. Description of the Related Art Conventionally, in order to make an electrical contact in which a contact material is caulked on a base material, a contact material mounting hole 2 is formed in the base material 1 as shown in FIG. As shown in FIG. 6, tapered portions 3 and 4 are formed on the upper and lower peripheral edges of the contact material 2, and then the contact material 5 is passed through the contact material mounting hole 2 as shown in FIG. As shown in FIG. 8, the base material 1 is crushed from both sides and caulked to tapers 3 and 4 flush with both upper and lower surfaces.
【０００３】ところで、このようにして作った電気接点
は、接点材５を接点材取付穴２の上端周縁及び下端周縁
のテーパ３、４の部分でかしめ止めしただけであるか
ら、かしめ強度が弱く不安定であった。このためテーパ
３、４を大きくとって接点材のかしめ強度を上げようと
することが考えられるが、テーパ３、４を大きくすると
台材１が変形し、不良品が発生する。However, the electrical contact made in this manner has a low crimping strength because the contact material 5 is merely crimped at the tapered portions 3 and 4 at the upper and lower peripheral edges of the contact material mounting hole 2. It was unstable. Therefore, it is conceivable to increase the tapping strength of the contact material by increasing the taper 3 or 4. However, if the taper 3 or 4 is increased, the base material 1 is deformed and defective products are generated.
【０００４】[0004]
【発明が解決しようとする課題】そこで本発明は、台材
の接点材取付穴の上下両端周縁のテーパを大きくするこ
となく、接点材のかしめ強度を高く安定させることので
きる電気接点の製造方法を提供しようとするものであ
る。SUMMARY OF THE INVENTION Accordingly, the present invention provides a method of manufacturing an electrical contact which can stabilize the caulking strength of a contact material at a high level without increasing the taper at both upper and lower edges of a contact material mounting hole of a base material. It is intended to provide.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の本発明の電気接点の製造方法は、台材に接点材取付穴
を明け、次にその接点材取付穴の上端周縁及び下端周縁
に穴内に向って台材の板厚の1/10〜1/4 の深さまでテー
パ加工を施すと共に接点材取付穴の内周面の上下にリン
グ状の凸部を突設してその間にリング状の凹部を形成
し、次いで接点材取付穴に接点材を貫通し、然る後接点
材の上下両側を圧潰して、台材の上下両面と面一に接点
材取付穴の上下両端のテーパ及び内周面中高部の凹部に
かしめることを特徴とするものである。According to the present invention, there is provided a method of manufacturing an electrical contact, comprising the steps of: forming a contact material mounting hole in a base material; and forming a contact material mounting hole in the upper and lower peripheral edges of the contact material mounting hole. Apply taper processing to the inside of the hole to a depth of 1/10 to 1/4 of the plate thickness of the base material, and protrude ring-shaped protrusions on the upper and lower surfaces of the inner peripheral surface of the contact material mounting hole, with a ring shape between them The contact material is then penetrated into the contact material mounting hole, and then the upper and lower sides of the contact material are crushed, and the upper and lower ends of the contact material mounting hole are flush with the upper and lower surfaces of the base material. It is characterized in that it is caulked in a concave part at the middle and high part of the inner peripheral surface.
【０００６】本発明の電気接点の製造方法において、台
材の接点材取付穴の上端周縁及び下端周縁に施すテーパ
加工の深さを、台材の板厚の1/10〜1/4 とした理由は、
1/10未満だとテーパの下端にリング状の凸部ができにく
く、従ってかしめに必要な凹部が形成されず、1/4 を超
えるとリング状の凸部ができるが、上下のリング状の凸
部が一緒になってかしめに必要な凹部がなくなるからで
ある。In the method for manufacturing an electric contact according to the present invention, the depth of the taper processing to be performed on the upper and lower peripheral edges of the contact material mounting hole of the base material is set to 1/10 to 1/4 of the thickness of the base material. Reason,
If it is less than 1/10, it is difficult to form a ring-shaped convex portion at the lower end of the taper, so that a concave portion necessary for caulking is not formed, and if it exceeds 1/4, a ring-shaped convex portion is formed, but the upper and lower ring-shaped convex portions are formed. The reason for this is that the projections come together and eliminate the depressions required for swaging.
【０００７】[0007]
【作用】上記のように本発明の電気接点の製造方法は、
台材の接点材取付穴の上下両端にテーパを付すと共に両
テーパの内端にリング状の凸部を突設して、そのリング
状の凸部間にリング状の凹部を形成するので、その後接
点材取付穴に接点材を貫通し上下両側を圧潰すると、接
点材は中高部が膨らんでリング状の凹部に充填してかし
められ、上下両端部が台材の上下両面と面一にテーパに
かしめられて、かしめ強度が高く安定したものとなる。As described above, the method for manufacturing an electric contact according to the present invention comprises:
The upper and lower ends of the contact material mounting hole of the base material are tapered, and a ring-shaped convex portion is protruded at the inner end of each taper, so that a ring-shaped concave portion is formed between the ring-shaped convex portions. When the contact material is penetrated into the contact material mounting hole and the upper and lower sides are crushed, the contact material expands at the middle and high parts and fills the ring-shaped recess and is caulked, and the upper and lower ends are tapered flush with the upper and lower surfaces of the base material It is caulked and has a high caulking strength and is stable.
【０００８】[0008]
【実施例】本発明の電気接点の製造方法の一実施例を図
によって説明すると、図１に示すように厚さ 0.5mmの燐
青銅よりなる台材１の先端部に、内径２mmの接点材取付
穴２を明け、次にその接点材取付穴２の上端周縁及び下
端周縁に穴２内に向かって図２に示すように深さ 0.1m
m、傾斜角30度のテーパ３′、４′をパンチ成形により
付すと共に接点材取付穴２の内周面の上下つまりテーパ
３′、４′の内端に高さ0.15mmのリングの凸部６、７を
突設して、その凸部６、７間にリング状の凹部８を形成
し、次いで図３に示すように接点材取付穴２に外径 1.7
mm、高さ 0.8mmのＡｇ−ＣｄＯ12％よりなる接点材５を
貫通し、然る後図４に示すように接点材５の上下両側を
かしめパンチにて圧潰して台材１の上下両面と面一に接
点材取付穴２の上下両端のテーパ３′、４′及び内周面
中高部のリング状の凹部８にかしめた。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the method for producing an electric contact according to the present invention will be described with reference to the drawings. As shown in FIG. 1, a contact material having an inner diameter of 2 mm is attached to the tip of a base material 1 made of phosphor bronze having a thickness of 0.5 mm. Drill the mounting hole 2 and then, at the top edge and the bottom edge of the contact material mounting hole 2, into the hole 2 to a depth of 0.1 m as shown in FIG.
m, a taper 3 ', 4' with an inclination angle of 30 degrees is formed by punching, and a convex part of a ring of height 0.15 mm is formed on the upper and lower surfaces of the inner peripheral surface of the contact material mounting hole 2, that is, on the inner end of the taper 3 ', 4'. 6, a ring-shaped concave portion 8 is formed between the convex portions 6 and 7, and then, as shown in FIG.
The contact material 5 made of Ag-CdO 12% having a height of 0.8 mm and a height of 0.8 mm is penetrated, and then the upper and lower sides of the contact material 5 are caulked as shown in FIG. The contact material mounting hole 2 was caulked into the taper 3 ', 4' at the upper and lower ends of the contact material mounting hole 2 and the ring-shaped recess 8 at the middle and high part of the inner peripheral surface.
【０００９】一方、従来例の電気接点の製造方法を図に
よって説明すると、図５に示すように実施例と同じ台材
１の先端部に、実施例と同寸法の接点材取付穴２を明
け、次にその接点材取付穴２の上端周縁及び下端周縁に
図６に示すように穴２内に向って図６に示すように深さ
0.1mm、傾斜角30度のテーパ３、４をパンチ成形により
付し、次いで図７に示すように接点材取付穴２に外径
1.7mm、高さ 0.8mmのＡｇ−ＣｄＯ12％よりなる接点材
５を貫通し、然る後図８に示すように接点材５の上下両
側をかしめパンチにて圧潰して台材１の上下両面と面一
に接点取付穴２の上下両端のテーパ３、４にかしめた。On the other hand, a method of manufacturing a conventional electric contact will be described with reference to the drawings. As shown in FIG. 5, a contact material mounting hole 2 having the same dimensions as the embodiment is formed at the tip of the same base material 1 as the embodiment. Then, as shown in FIG. 6, the depth of the contact material mounting hole 2 at the upper edge and the lower edge of the contact material mounting hole 2 toward the inside of the hole 2 as shown in FIG. 6.
Tapers 3 and 4 having a diameter of 0.1 mm and an inclination angle of 30 degrees are punched, and then the outer diameter of the contact material mounting hole 2 is set as shown in FIG.
The contact material 5 made of Ag-CdO 12% having a thickness of 1.7 mm and a height of 0.8 mm is penetrated, and then the upper and lower sides of the contact material 5 are caulked as shown in FIG. And the upper and lower ends of the contact mounting hole 2 were tapered.
【００１０】こうして得た実施例及び従来例の電気接点
各 100個について接点材５のかしめ強度を測定した処、
下記の表１に示すような結果を得た。When the caulking strength of the contact material 5 was measured for each of the 100 electrical contacts of the embodiment and the conventional example thus obtained,
The results as shown in Table 1 below were obtained.
【００１１】[0011]
【表１】 [Table 1]
【００１２】上記表１で明らかなように従来例の電気接
点は、接点材５のかしめ強度が低く、ばらつきが大きく
て不安定であったのに対し、実施例の電気接点は、接点
材５のかしめ強度が高く、ばらつきが小さくて安定して
いることが判る。As is apparent from Table 1, the electric contact of the conventional example has a low caulking strength of the contact material 5 and a large variation, and is unstable. It can be seen that the caulking strength is high, the dispersion is small, and it is stable.
【００１３】[0013]
【発明の効果】以上の通り本発明の電気接点の製造方法
によれば、台材の接点材取付穴の上下両端周縁のテーパ
を大きくすることなく、接点材のかしめ強度が高く、ば
らつきが小さくて安定した電気接点を容易に得ることが
できる。特に本発明の電気接点の製造方法は、薄い台材
の場合に、接点材取付穴の上下両端周縁のテーパへのか
しめ量を少なくできるので、接点材が割れることがな
く、しかも台材の変形を防止した上で接点材のかしめ強
度を高くできて、極めて有効である。また、割れ易い
（加工しにくい）接点材でも容易にかしめることができ
る。As described above, according to the method for manufacturing an electric contact of the present invention, the caulking strength of the contact material is high and the variation is small without increasing the taper at the upper and lower peripheral edges of the contact material mounting hole of the base material. And a stable electrical contact can be easily obtained. In particular, the method for manufacturing an electrical contact according to the present invention can reduce the amount of caulking of the contact material mounting holes into the upper and lower peripheral edges, in the case of a thin base material, so that the contact material does not crack and the base material is deformed. This is extremely effective because the crimping strength of the contact material can be increased while preventing the occurrence of the problem. Even a contact material that is easily broken (hard to process) can be easily caulked.
【図１】本発明の電気接点の製造方法の一実施例の工程
を示す図である。FIG. 1 is a view showing the steps of an embodiment of the method for producing an electric contact of the present invention.
【図２】本発明の電気接点の製造方法の一実施例の工程
を示す図である。FIG. 2 is a diagram showing the steps of an embodiment of the method for producing an electric contact of the present invention.
【図３】本発明の電気接点の製造方法の一実施例の工程
を示す図である。FIG. 3 is a diagram showing the steps of one embodiment of the method for manufacturing an electric contact of the present invention.
【図４】本発明の電気接点の製造方法の一実施例の工程
を示す図である。FIG. 4 is a view showing the steps of an embodiment of the method for producing an electric contact of the present invention.
【図５】従来の電気接点の製造方法の工程を示す図であ
る。FIG. 5 is a diagram showing steps of a conventional method for manufacturing an electrical contact.
【図６】従来の電気接点の製造方法の工程を示す図であ
る。FIG. 6 is a diagram showing steps of a conventional method for manufacturing an electrical contact.
【図７】従来の電気接点の製造方法の工程を示す図であ
る。FIG. 7 is a diagram showing steps of a conventional method for manufacturing an electrical contact.
【図８】従来の電気接点の製造方法の工程を示す図であ
る。FIG. 8 is a diagram showing steps of a conventional method for manufacturing an electrical contact.
１ 台材 ２ 接点材取付穴 ３′、４′ テーパ ５ 接点材 ６、７ 凸部 ８ 凹部 Reference Signs List 1 base material 2 contact material mounting holes 3 ', 4' taper 5 contact material 6, 7 convex portion 8 concave portion
Claims (1)
点材取付穴の上端周縁及び下端周縁に穴内に向って台材
の板厚の1/10〜1/4 の深さまでテーパ加工を施すと共に
接点材取付穴の内周面の上下にリング状の凸部を突設し
てその間にリング状の凹部を形成し、次いで接点材取付
穴に接点材を貫通し、然る後接点材の上下両側より圧潰
して、台材の上下両面と面一に接点材取付穴の上下両端
のテーパ及び内周面中高部の凹部にかしめることを特徴
とする電気接点の製造方法。1. A contact material mounting hole is formed in a base material, and a taper is formed at an upper peripheral edge and a lower peripheral edge of the contact material mounting hole toward the inside of the hole to a depth of 1/10 to 1/4 of the thickness of the base material. A ring-shaped convex part is formed on the top and bottom of the inner surface of the contact material mounting hole, and a ring-shaped concave part is formed between them. Then, the contact material is pierced through the contact material mounting hole. A method of manufacturing an electrical contact, comprising: crushing contact material from both upper and lower sides and crimping the taper at upper and lower ends of a contact material mounting hole and a concave portion at a middle and high portion of an inner peripheral surface to be flush with upper and lower surfaces of a base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3171633A JP3058201B2 (en) | 1991-06-17 | 1991-06-17 | Manufacturing method of electrical contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3171633A JP3058201B2 (en) | 1991-06-17 | 1991-06-17 | Manufacturing method of electrical contacts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04368723A JPH04368723A (en) | 1992-12-21 |
| JP3058201B2 true JP3058201B2 (en) | 2000-07-04 |
Family
ID=15926811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3171633A Expired - Lifetime JP3058201B2 (en) | 1991-06-17 | 1991-06-17 | Manufacturing method of electrical contacts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3058201B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5699296B2 (en) | 2011-09-12 | 2015-04-08 | 株式会社貴匠技研 | Metal caulking structure and bus bar using this caulking structure |
| DE112016006671T5 (en) | 2016-04-01 | 2018-12-20 | Uchiya Thermostat Co., Ltd. | Method of making an electrical contact |
-
1991
- 1991-06-17 JP JP3171633A patent/JP3058201B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04368723A (en) | 1992-12-21 |
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