JP3493668B2 - Manufacturing method of contact terminal block - Google Patents

Manufacturing method of contact terminal block

Info

Publication number
JP3493668B2
JP3493668B2 JP22664892A JP22664892A JP3493668B2 JP 3493668 B2 JP3493668 B2 JP 3493668B2 JP 22664892 A JP22664892 A JP 22664892A JP 22664892 A JP22664892 A JP 22664892A JP 3493668 B2 JP3493668 B2 JP 3493668B2
Authority
JP
Japan
Prior art keywords
terminal
terminal plate
plate
contact
molded product
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
Application number
JP22664892A
Other languages
Japanese (ja)
Other versions
JPH0676683A (en
Inventor
正行 塩見
寿伸 田中
広明 相星
隆 吉村
貴康 石塚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP22664892A priority Critical patent/JP3493668B2/en
Priority to US08/047,482 priority patent/US5331302A/en
Priority to KR2019930006420U priority patent/KR0137922Y1/en
Publication of JPH0676683A publication Critical patent/JPH0676683A/en
Application granted granted Critical
Publication of JP3493668B2 publication Critical patent/JP3493668B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0056—Apparatus or processes specially adapted for the manufacture of electric switches comprising a successive blank-stamping, insert-moulding and severing operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/548—Contact arrangements for miniaturised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/043—Details particular to miniaturised relays
    • H01H2050/044—Special measures to minimise the height of the relay

Description

【発明の詳細な説明】 【０００１】 【産業上の利用分野】本発明は、リレーやスイッチ等に
用いられる接点端子ブロックの製造方法に関するもので
ある。 【０００２】 【従来の技術】従来、固定接点部が対向する構造で、そ
の端子材をベースとなる成形品に同時成形して接点端子
ブロックを製造するような場合、接点間に成形体が入ら
ないような成形金型構造が困難であるために成形体に一
枚以上、つまり二枚の接点端子を圧入するようにしてい
た。 【０００３】 【発明が解決しようとする課題】しかし、上述のような
従来例にあっては、二枚の接点端子を用いるために端子
材料費が多くなり、コストが高くつくという問題があ
り、また、二枚の接点端子を成形品に設置するのに対応
した接点端子の抜き型、接点溶接機、接点端子分断機、
端子圧入機が必要であり、製造機械の投資コストが高く
つくという問題があった。 【０００４】本発明は上記問題点の解決を目的とするも
のであり、製造にかかるコストを削減することができる
接点端子ブロックの製造方法を提供しようとするもので
ある。 【０００５】 【課題を解決するための手段】本発明では、上記目的を
達成するために、一枚の薄金属板１を打ち抜き加工して
薄金属板１に第１の端子板ａと第２の端子板ｂと第３の
端子板ｃとを一体に形成し、端子板の片側面の接点部分
となる部分の全てに固定接点２を溶接し、次いで薄金属
板１と共に各端子板ａ，ｂ，ｃをベースとなる成形品３
に同時成形し、成形品に同時成形されてコモン端子４を
形成する第１の端子板ａ上に可動接点ばね５を溶接し、
この可動接点ばね５の先端を成形品３に同時成形されて
ＮＯ端子６を形成する第２の端子板ｂ上に臨ませ、可動
接点ばね５の先端に設けられた固定接点５ａと上記ＮＯ
端子６を形成する第２の端子板ｂの固定接点２ａとを対
向するように配置してＮＯ接点部７を形成し、端子板の
部分を残して薄金属板１より第３の端子板ｃを分断し、
成形品３に同時成形されてＮＣ端子８を形成すると共に
成形品３より側方に突出される第３の端子板ｃの先部を
折曲加工して先端部を可動接点ばね５の上面側に臨ま
せ、可動接点ばね５の長手方向に沿う上面のほぼ中央に
設けられた固定接点５ｂと上記ＮＣ端子８を形成する第
３の端子板ｃに設けられた固定接点２ｂとを接触させて
ＮＣ接点部９を形成し、端子板の部分を残して薄金属板
１より第１の端子板ａと第２の端子板ｂとを分断し、第
１の端子板ａと第２の端子板ｂの先端部を折曲加工にて
成形品３より下方に向けて突設するようにしたものであ
る。 【０００６】 【作用】しかして、複数の端子板として第１の端子板ａ
と第２の端子板ｂと第３の端子板ｃとが一体に形成され
た一枚の薄金属板を用いて固定接点部を構成することが
できるものであり、従来のように二枚の端子材を用いる
ことなく薄金属板にて形成される一枚の端子材にて固定
接点部を構成することができるものであり、端子材料費
が削減でき、また、端子材を打ち抜き加工するための抜
き金型の投資コストも削減できるものであり、さらに、
一枚の端子材で、且つ片面側の接点部分となる部分の全
てに固定接点が溶接にて形成できるために接点溶接機の
投資コストも削減できるものであり、製造にかかるコス
トを削減することができる。 【０００７】 【実施例】本発明にて製造される接点端子ブロックはリ
レーやスイッチ等の対向接点部を持つ制御機器に用いら
れるものであり、薄金属板１を打ち抜き加工して形成さ
れる複数の端子板と、合成樹脂等によって形成されるベ
ースとしての成形品３とで主体が構成されている。 【０００８】薄金属板１に形成される複数の端子板は同
時成形によって成形品３内に所定部分が埋設されるもの
であり、次いで各端子板を薄金属板１より切り離した後
に各端子板を折曲加工して端子板に設けられる所定の固
定接点同士を対向して配置させることで接点部が形成さ
れ、接点端子ブロックが製造される。以下、接点端子ブ
ロックの製造方法を図面に基づいて詳述する。 【０００９】図１に示されるように一枚の薄金属板１が
抜き金型によって所定部分が打ち抜かれて薄金属板１に
第１の端子板ａと第２の端子板ｂと第３の端子板ｃとが
一体に形成される。次いで、図２に示されるように端子
板の片側面の接点部分となる部分の全てに固定接点２が
溶接によって設けられる。図示された実施例にあって
は、第２の端子板ｂと第３の端子板ｃに固定接点２がそ
れぞれ設けられるようになっており、第２の端子板ｂに
は固定接点２ａが、第３の端子板ｃには固定接点２ｂが
設けられている。 【００１０】次いで、図３、図４に示されるように所定
の部位が埋設されるように薄金属板１と共に各端子板
ａ，ｂ，ｃがベースとなる成形品３に同時成形される。
次いで、図５に示されるように成形品に同時成形されて
コモン端子４を形成する第１の端子板ａ上に可動接点ば
ね５が溶接にて固定される。この可動接点ばね５は、ブ
ロック化されて複数隣合うように連続して形成されてお
り、第１の端子板ａ上に配置した後に端部同士をスポッ
ト溶接２０にて溶接し、図中に示される切断線イの部分
で切断されて第１の端子板ａに接続される。ここで、可
動接点ばね５は一端部を第１の端子板ａの端部に接続さ
れていることで先端となる他端部が自由端部となってお
り、この自由端部は可動接点ばね５自身の弾性にて上下
に移動可能となっている。図６に示されるように可動接
点ばね５の自由端部の下面には固定接点５ａが設けら
れ、可動接点ばね５の長手方向に沿う中央部の上面には
固定接点５ｂが設けられている。そして、可動接点ばね
５を第１の端子板ａに接続した状態では固定接点５ａが
第２の端子板ｂに設けられた固定接点２ａに上下で対向
するように配置されるようになっている。つまり、可動
接点ばね５の先端を成形品３に同時成形されてＮＯ端子
６を形成する第２の端子板ｂ上に臨ませ、可動接点ばね
５の先端に設けられた固定接点５ａと上記ＮＯ端子６を
形成する第２の端子板ｂの固定接点２ａとを対向するよ
うに配置してＮＯ接点部７が形成される。 【００１１】次いで、図７中に示される切断線ロの部分
で端子板の部分を残して薄金属板１より第３の端子板ｃ
を分断し、成形品３に同時成形されてＮＣ端子８を形成
すると共に成形品３より側方に突出される第３の端子板
ｃの先部を折曲加工して先端部を可動接点ばね５の上面
側に臨ませ、可動接点ばね５の長手方向に沿う上面のほ
ぼ中央に設けられた固定接点５ｂと上記ＮＣ端子８を形
成する第３の端子板ｃに設けられた固定接点２ｂとを接
触させてＮＣ接点部９が形成される。第３の端子板ｃが
切断後に折曲加工される状態を図８にて示している。 【００１２】次いで、図９に示される切断線ハの部分で
端子板の部分を残して薄金属板１より第１の端子板ａと
第２の端子板ｂとを分断し、第１の端子板ａと第２の端
子板ｂの先端部を折曲加工にて成形品３より下方に向け
て突設することで接点端子ブロックが製造されるもので
ある。そして、複数の端子板として第１の端子板ａと第
２の端子板ｂと第３の端子板ｃとが一体に形成された一
枚の薄金属板を用いて固定接点部を構成することができ
るものであり、従来のように二枚の端子材を用いること
なく薄金属板にて形成される一枚の端子材にて固定接点
部を構成することができるものであり、端子材料費が削
減でき、また、端子材を打ち抜き加工するための抜き金
型の投資コストも削減できるものであり、さらに、一枚
の端子材で、且つ片面側の接点部分となる部分の全てに
固定接点が溶接にて形成できるために接点溶接機の投資
コストも削減できるものであり、製造にかかるコストを
削減することができるようになっている。 【００１３】 【発明の効果】本発明は上述のように、一枚の薄金属板
を打ち抜き加工して薄金属板に第１の端子板と第２の端
子板と第３の端子板とを一体に形成し、端子板の片側面
の接点部分となる部分の全てに固定接点を溶接し、次い
で薄金属板と共に各端子板をベースとなる成形品に同時
成形し、成形品に同時成形されてコモン端子を形成する
第１の端子板上に可動接点ばねを溶接し、この可動接点
ばねの先端を成形品に同時成形されてＮＯ端子を形成す
る第２の端子板上に臨ませ、可動接点ばねの先端に設け
られた固定接点と上記ＮＯ端子を形成する第２の端子板
の固定接点とを対向するように配置してＮＯ接点部を形
成し、端子板の部分を残して薄金属板より第３の端子板
を分断し、成形品に同時成形されてＮＣ端子を形成する
と共に成形品より側方に突出される第３の端子板の先部
を折曲加工して先端部を可動接点ばねの上面側に臨ま
せ、可動接点ばねの長手方向に沿う上面のほぼ中央に設
けられた固定接点と上記ＮＣ端子を形成する第３の端子
板に設けられた固定接点とを接触させてＮＣ接点部を形
成し、端子板の部分を残して薄金属板より第１の端子板
と第２の端子板とを分断し、第１の端子板と第２の端子
板の先端部を折曲加工にて成形品より下方に向けて突設
して接点端子ブロックを製造するので、従来のように二
枚の端子材を用いることなく薄金属板にて形成される一
枚の端子材にて固定接点部を構成することができるもの
であり、端子材料費が削減でき、また、端子材を打ち抜
き加工するための抜き金型の投資コストも削減できるも
のであり、さらに、一枚の端子材で、且つ片面側の接点
部分となる部分の全てに固定接点が溶接にて形成できる
ために接点溶接機の投資コストも削減できるものであ
り、製造にかかるコストを削減して接点端子ブロックを
製造することができるものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a contact terminal block used for a relay or a switch. 2. Description of the Related Art Conventionally, when a fixed contact portion is opposed to a terminal material and a terminal material is simultaneously molded into a molded product as a base to produce a contact terminal block, a molded product is inserted between the contacts. Due to the difficulty in forming a molding die, one or more, that is, two contact terminals are press-fitted into a molded body. [0003] However, in the above-mentioned conventional example, the use of two contact terminals increases the cost of terminal materials and increases the cost. Also, contact terminal punching dies, contact welding machines, contact terminal cutting machines,
There was a problem that a terminal press-fitting machine was required, and the investment cost of the manufacturing machine was high. An object of the present invention is to provide a method for manufacturing a contact terminal block capable of reducing the manufacturing cost. According to the present invention, in order to achieve the above object, a single thin metal plate 1 is punched to form a first terminal plate a and a second thin metal plate 1 on the thin metal plate 1. And the third terminal plate c are integrally formed, and the fixed contacts 2 are welded to all of the contact portions on one side of the terminal plate, and then the terminal plates a, Molded product 3 based on b and c
And a movable contact spring 5 is welded on a first terminal plate a which is formed simultaneously with the molded product to form a common terminal 4.
The tip of the movable contact spring 5 is made to face the second terminal plate b which is formed simultaneously with the molded product 3 to form the NO terminal 6, and the fixed contact 5 a provided at the tip of the movable contact spring 5 and the NO
The NO contact portion 7 is formed by arranging the fixed contact 2a of the second terminal plate b forming the terminal 6 so as to face the third terminal plate c from the thin metal plate 1 except for the terminal plate portion. Divide
The NC terminal 8 is formed simultaneously with the molded product 3 to form the NC terminal 8, and the tip of the third terminal plate c protruding laterally from the molded product 3 is bent to form the distal end on the upper surface side of the movable contact spring 5. And the fixed contact 5b provided substantially at the center of the upper surface along the longitudinal direction of the movable contact spring 5 and the fixed contact 2b provided on the third terminal plate c forming the NC terminal 8 are brought into contact with each other. An NC contact portion 9 is formed, and the first terminal plate a and the second terminal plate b are separated from the thin metal plate 1 except for the terminal plate portion, and the first terminal plate a and the second terminal plate are separated. The tip of b is formed to project downward from the molded product 3 by bending. The first terminal board a has a plurality of terminal boards.
And the second terminal plate b and the third terminal plate c can be used to form the fixed contact portion by using a single thin metal plate integrally formed. The fixed contact portion can be constituted by a single terminal material formed of a thin metal plate without using a terminal material, which can reduce the cost of the terminal material and also allows the terminal material to be stamped. It can reduce the investment cost of the punching die.
Since the fixed contacts can be formed by welding on one terminal material and all the portions that become the contact portions on one side, the investment cost of the contact welding machine can be reduced, and the manufacturing cost can be reduced. Can be. A contact terminal block manufactured according to the present invention is used for a control device having an opposed contact portion such as a relay or a switch. A plurality of contact terminal blocks are formed by punching a thin metal plate 1. And a molded product 3 as a base formed of a synthetic resin or the like. [0008] A plurality of terminal plates formed on the thin metal plate 1 have a predetermined portion embedded in a molded product 3 by simultaneous molding. Then, after each terminal plate is cut off from the thin metal plate 1, each terminal plate is cut. Is bent, and predetermined fixed contacts provided on the terminal plate are arranged so as to face each other to form a contact portion, whereby a contact terminal block is manufactured. Hereinafter, a method for manufacturing the contact terminal block will be described in detail with reference to the drawings. As shown in FIG. 1, a predetermined portion of one thin metal plate 1 is punched out by a punching die, and a first terminal plate a, a second terminal plate b, and a third terminal plate are formed on the thin metal plate 1. The terminal plate c is integrally formed. Next, as shown in FIG. 2, the fixed contacts 2 are provided by welding to all of the portions that become the contact portions on one side surface of the terminal plate. In the illustrated embodiment, a fixed contact 2 is provided on each of the second terminal plate b and the third terminal plate c, and the fixed contact 2a is provided on the second terminal plate b. The third terminal plate c is provided with a fixed contact 2b. Next, as shown in FIGS. 3 and 4, the respective terminal plates a, b, and c are simultaneously molded with the thin metal plate 1 into a molded product 3 serving as a base so that predetermined portions are buried.
Next, as shown in FIG. 5, the movable contact spring 5 is fixed by welding on the first terminal plate a which is formed simultaneously with the molded product to form the common terminal 4. The movable contact spring 5 is formed as a block and continuously formed so as to be adjacent to each other. After the movable contact spring 5 is disposed on the first terminal plate a, the ends thereof are welded to each other by spot welding 20. It is cut at the indicated cutting line A and connected to the first terminal board a. Here, the movable contact spring 5 has one end connected to the end of the first terminal plate a, and the other end serving as a leading end is a free end, and the free end is a movable contact spring. 5 can be moved up and down by its own elasticity. As shown in FIG. 6, a fixed contact 5a is provided on the lower surface of the free end of the movable contact spring 5, and a fixed contact 5b is provided on the upper surface of a central portion along the longitudinal direction of the movable contact spring 5. When the movable contact spring 5 is connected to the first terminal plate a, the fixed contact 5a is arranged so as to vertically face the fixed contact 2a provided on the second terminal plate b. . That is, the tip of the movable contact spring 5 is made to face the second terminal plate b, which is formed simultaneously with the molded product 3 to form the NO terminal 6, and the fixed contact 5a provided at the tip of the movable contact spring 5 and the NO. The NO contact portion 7 is formed by arranging the fixed contact 2a of the second terminal plate b forming the terminal 6 so as to face the contact. Next, the third terminal plate c is removed from the thin metal plate 1 by leaving the terminal plate portion at the portion of the cutting line B shown in FIG.
And the NC terminal 8 is formed simultaneously with the molded product 3 to form the NC terminal 8, and the tip of the third terminal plate c protruding laterally from the molded product 3 is bent to form a movable contact spring at the distal end. 5, a fixed contact 5b provided substantially at the center of the upper surface along the longitudinal direction of the movable contact spring 5, and a fixed contact 2b provided on the third terminal plate c forming the NC terminal 8. Are contacted to form the NC contact portion 9. FIG. 8 shows a state in which the third terminal plate c is bent after cutting. Next, the first terminal plate a and the second terminal plate b are separated from the thin metal plate 1 except for the terminal plate portion at the cutting line C shown in FIG. The contact terminal block is manufactured by projecting the tip portions of the plate a and the second terminal plate b downward from the molded product 3 by bending. The fixed contact portion is formed using a single thin metal plate in which a first terminal plate a, a second terminal plate b, and a third terminal plate c are integrally formed as a plurality of terminal plates. The fixed contact portion can be constituted by a single terminal material formed of a thin metal plate without using two terminal materials as in the related art. In addition, it is possible to reduce the investment cost of the punching die for punching the terminal material. Since it can be formed by welding, the investment cost of the contact welding machine can be reduced, and the cost for manufacturing can be reduced. According to the present invention, as described above, a single thin metal plate is stamped to form a first terminal plate, a second terminal plate, and a third terminal plate on a thin metal plate. It is formed integrally, and fixed contacts are welded to all of the contact portions on one side of the terminal plate, and then each terminal plate is molded simultaneously with the thin metal plate into the base molded product, and is simultaneously molded into the molded product. The movable contact spring is welded on the first terminal plate forming the common terminal, and the tip of the movable contact spring is formed on the second terminal plate forming the NO terminal at the same time as the molded product, and movable. The fixed contact provided at the tip of the contact spring and the fixed contact of the second terminal plate forming the NO terminal are arranged so as to face each other to form an NO contact portion, and the thin metal is removed except for the terminal plate portion. When the third terminal plate is cut off from the plate and formed simultaneously with the molded product to form NC terminals, The tip of the third terminal plate protruding laterally from the molded product is bent so that the distal end faces the upper surface of the movable contact spring, and is substantially at the center of the upper surface along the longitudinal direction of the movable contact spring. The fixed contact provided is brought into contact with the fixed contact provided on the third terminal plate forming the NC terminal to form an NC contact portion, and the first terminal is formed from the thin metal plate except for the terminal plate. Since the plate and the second terminal plate are separated from each other, and the distal end portions of the first terminal plate and the second terminal plate are bent and protruded downward from the molded product to manufacture the contact terminal block. The fixed contact portion can be constituted by one terminal material formed of a thin metal plate without using two terminal materials as in the related art, and the terminal material cost can be reduced. In addition, it can reduce the investment cost of the punching die for punching the terminal material. The fixed contact can be formed by welding on all of the terminal material and the contact portion on one side, so that the investment cost of the contact welding machine can be reduced. Can be manufactured.

【図面の簡単な説明】 【図１】端子板が一体に形成された薄金属板の平面図で
ある。 【図２】端子板に設けられる固定接点の位置を示す平面
図である。 【図３】成形品への設置状態を示す平面図である。 【図４】成形品内部への端子板の配置状態を示す断面図
である。 【図５】可動接点ばねの配置状態を示す平面図である。 【図６】可動接点ばねの正面図である。 【図７】ＮＣ端子の分断位置を示す平面図である。 【図８】（ａ）（ｂ）（ｃ）はＮＣ端子の折曲加工状態
を説明する説明図である。 【図９】他の端子板の分断位置を示す平面図である。 【符号の説明】 １ 薄金属板 ａ 第１の端子板 ｂ 第２の端子板 ｃ 第３の端子板 ２ 固定接点 ２ａ 固定接点 ２ｂ 固定接点 ３ 成形品 ４ コモン端子 ５ 可動接点ばね ５ａ 固定接点 ５ｂ 固定接点 ６ ＮＯ端子 ７ ＮＯ接点部 ８ ＮＣ端子 ９ ＮＣ接点部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a thin metal plate on which a terminal plate is integrally formed. FIG. 2 is a plan view showing positions of fixed contacts provided on a terminal plate. FIG. 3 is a plan view showing a state of installation on a molded product. FIG. 4 is a cross-sectional view showing an arrangement state of a terminal plate inside a molded product. FIG. 5 is a plan view showing an arrangement state of a movable contact spring. FIG. 6 is a front view of a movable contact spring. FIG. 7 is a plan view showing a dividing position of an NC terminal. FIGS. 8A, 8B, and 8C are explanatory diagrams illustrating a bent state of an NC terminal. FIG. 9 is a plan view showing a division position of another terminal plate. [Description of Signs] 1 Thin metal plate a First terminal plate b Second terminal plate c Third terminal plate 2 Fixed contact 2a Fixed contact 2b Fixed contact 3 Molded product 4 Common terminal 5 Movable contact spring 5a Fixed contact 5b Fixed contact 6 NO terminal 7 NO contact 8 NC terminal 9 NC contact

───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉村 隆 大阪府門真市大字門真1048番地松下電工 株式会社内 (72)発明者 石塚 貴康 北海道帯広市西25条北１丁目２番１号 帯広松下電工株式会社内 (56)参考文献 特開 平４−351810（ＪＰ，Ａ) 特開 平２−242540（ＪＰ，Ａ) 特開 平１−243332（ＪＰ，Ａ) 特開 平１−239721（ＪＰ，Ａ) 特開 昭61−248311（ＪＰ，Ａ) 特開 昭61−151920（ＪＰ，Ａ) 特開 昭57−32527（ＪＰ，Ａ) 特開 昭56−143617（ＪＰ，Ａ) 特開 昭58−137914（ＪＰ，Ａ) 特開 昭58−46528（ＪＰ，Ａ) 特開 昭58−46527（ＪＰ，Ａ) 特開 昭62−145613（ＪＰ，Ａ) 特開 昭62−145612（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 11/04 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Yoshimura 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Takayasu Ishizuka 1-2-1, Kita 25, Kita, Obihiro City, Hokkaido Obihiro Matsushita Electric Works JP-A-4-351810 (JP, A) JP-A-2-242540 (JP, A) JP-A-1-243332 (JP, A) JP-A-1-239721 (JP, A) A) JP-A-61-248311 (JP, A) JP-A-61-151920 (JP, A) JP-A-57-32527 (JP, A) JP-A-56-143617 (JP, A) JP-A-58 JP-A-137914 (JP, A) JP-A-58-46528 (JP, A) JP-A-58-46527 (JP, A) JP-A-62-145613 (JP, A) JP-A-62-145612 (JP, A) (58) Field surveyed (Int.Cl. 7 , DB name) H01H 11/04

Claims (1)

(57)【特許請求の範囲】 【請求項１】 一枚の薄金属板を打ち抜き加工して薄金
属板に第１の端子板と第２の端子板と第３の端子板とを
一体に形成し、端子板の片側面の接点部分となる部分の
全てに固定接点を溶接し、次いで薄金属板と共に各端子
板をベースとなる成形品に同時成形し、成形品に同時成
形されてコモン端子を形成する第１の端子板上に可動接
点ばねを溶接し、この可動接点ばねの先端を成形品に同
時成形されてＮＯ端子を形成する第２の端子板上に臨ま
せ、可動接点ばねの先端に設けられた固定接点と上記Ｎ
Ｏ端子を形成する第２の端子板の固定接点とを対向する
ように配置してＮＯ接点部を形成し、端子板の部分を残
して薄金属板より第３の端子板を分断し、成形品に同時
成形されてＮＣ端子を形成すると共に成形品より側方に
突出される第３の端子板の先部を折曲加工して先端部を
可動接点ばねの上面側に臨ませ、可動接点ばねの長手方
向に沿う上面のほぼ中央に設けられた固定接点と上記Ｎ
Ｃ端子を形成する第３の端子板に設けられた固定接点と
を接触させてＮＣ接点部を形成し、端子板の部分を残し
て薄金属板より第１の端子板と第２の端子板とを分断
し、第１の端子板と第２の端子板の先端部を折曲加工に
て成形品より下方に向けて突設して成ることを特徴とす
る接点端子ブロックの製造方法。(57) [Claims 1] A single thin metal plate is punched to integrate a first terminal plate, a second terminal plate, and a third terminal plate into a thin metal plate. Formed, fixed contacts are welded to all of the contact parts on one side of the terminal plate, and then each terminal plate is molded simultaneously with the thin metal plate into the base molded product. A movable contact spring is welded on a first terminal plate forming a terminal, and the tip of the movable contact spring is formed on a second terminal plate forming a NO terminal by being simultaneously formed into a molded product, and the movable contact spring is formed. The fixed contact provided at the tip of
The NO contact portion is formed by disposing the fixed contact of the second terminal plate forming the O terminal so as to face the third terminal plate, and the third terminal plate is separated from the thin metal plate except for the terminal plate portion, and formed. The NC terminal is formed simultaneously with the molded product, and the tip of the third terminal plate protruding laterally from the molded product is bent so that the distal end faces the upper surface of the movable contact spring. A fixed contact provided substantially at the center of the upper surface along the longitudinal direction of the spring and the N
An NC contact portion is formed by contacting a fixed contact provided on a third terminal plate forming a C terminal, and the first terminal plate and the second terminal plate are formed from a thin metal plate except for the terminal plate. And a method of manufacturing a contact terminal block, wherein the end portions of the first terminal plate and the second terminal plate are protruded downward from a molded product by bending.
JP22664892A 1992-08-26 1992-08-26 Manufacturing method of contact terminal block Expired - Fee Related JP3493668B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP22664892A JP3493668B2 (en) 1992-08-26 1992-08-26 Manufacturing method of contact terminal block
US08/047,482 US5331302A (en) 1992-08-26 1993-04-19 Miniature transfer relay
KR2019930006420U KR0137922Y1 (en) 1992-08-26 1993-04-22 Miniature transfer relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22664892A JP3493668B2 (en) 1992-08-26 1992-08-26 Manufacturing method of contact terminal block

Publications (2)

Publication Number Publication Date
JPH0676683A JPH0676683A (en) 1994-03-18
JP3493668B2 true JP3493668B2 (en) 2004-02-03

Family

ID=16848478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22664892A Expired - Fee Related JP3493668B2 (en) 1992-08-26 1992-08-26 Manufacturing method of contact terminal block

Country Status (2)

Country Link
JP (1) JP3493668B2 (en)
KR (1) KR0137922Y1 (en)

Also Published As

Publication number Publication date
JPH0676683A (en) 1994-03-18
KR0137922Y1 (en) 1999-04-01
KR940008604U (en) 1994-04-21

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