JPS645733B2 - - Google Patents

Description

【発明の詳細な説明】 この発明は小型リレーに関し、特に電磁ブロツ
クと接点部を独立に基台に取付ける様にした小型
リレーに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small relay, and more particularly to a small relay in which an electromagnetic block and a contact portion are independently mounted on a base.

この種の小型リレーの接点部は、復帰バネ、第
１の可動接点板、固定接点板、第２の可動接点板
がこの順に配設され、このうち２個の可動接点板
は弾性材料で構成されていて固定接点板に対する
適当な接圧を形成する様、基台への取付段階で
各々固定接点板側へ弾性屈曲する様になつてい
る。この様な構成から成る従来の小型リレーは、
基台に対し各要素を全部上方からしか取付けるこ
とができない構造であつたため、固定接点板を取
付ける前に２個の可動接点板を取付けると、２個
の可動接点板の内側の接点同士が接触した状態と
なつて、その後に固定接点板を取付ける作業が非
常に困難となる。そこで、先ず固定接点板を取付
け、次いでその両側に可動接点板を取付ける作業
方法を採つているが、この場合、後者の作業は固
定接点板の接点に可動接点板の接点が圧縮したま
まの取付け作業となるため、可動接点板に大きな
横方向の応力が生じ易くなる。接点部の機能か
ら、可動接点板は比較的薄いものが用いられる
が、こうした横方向の大きな応力の生じやすい下
で作業を行うと、可動接点板の変形を生じやすく
することは明らかである。即ち、従来の小型リレ
ーでは、組立後に於いて、可動接点板を変形させ
ることがしばしばあり、そのため、動作特性を悪
くしたり、或いは接点板自身を不良にしたりする
等、品質上の問題や作業上の問題があつた。 The contact section of this type of small relay has a return spring, a first movable contact plate, a fixed contact plate, and a second movable contact plate arranged in this order, and two of these movable contact plates are made of an elastic material. In order to form appropriate contact pressure against the fixed contact plate, each of them is designed to elastically bend toward the fixed contact plate when attached to the base. Conventional small relays with this configuration are
Since the structure was such that each element could only be attached to the base from above, if the two movable contact plates were attached before attaching the fixed contact plate, the contacts on the inside of the two movable contact plates would come into contact with each other. This makes it extremely difficult to install the fixed contact plate afterwards. Therefore, we first install the fixed contact plate and then attach the movable contact plates on both sides. In this case, the latter work involves attaching the contacts of the movable contact plate to the contacts of the fixed contact plate while they are still compressed. Because of this work, large lateral stress tends to be generated on the movable contact plate. Due to the function of the contact portion, a relatively thin movable contact plate is used, but it is clear that the movable contact plate is likely to be deformed if the work is performed under conditions where large lateral stress is likely to occur. In other words, in conventional small relays, the movable contact plate is often deformed after assembly, which can cause quality problems and work problems, such as deterioration of operating characteristics or defective contact plate itself. I had the above problem.

この発明の目的は以上の欠点を除去することに
あり、固定接点板を基台の下方から上方にスライ
ド挿入し得る構成にして、可動接点板の取付後に
固定接点板を取付け得る様にすることで、可動接
点板の変形が全く生じなくなる小型リレーを提供
するものである。 The purpose of this invention is to eliminate the above-mentioned drawbacks, and to provide a structure in which the fixed contact plate can be slid upwardly from the bottom of the base, so that the fixed contact plate can be attached after the movable contact plate is attached. The present invention provides a compact relay in which no deformation of the movable contact plate occurs.

以下この発明の実施例を図面を参照して説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.

第１図はこの発明の実施例である小型リレーの
分解斜視図、第２図は同リレーの一部分解斜視
図、第３図イ，ロは同リレーの一部断面表示を省
略した概略側縦断面図と概略正縦断面図をそれぞ
れ示している。 Fig. 1 is an exploded perspective view of a small relay that is an embodiment of the present invention, Fig. 2 is a partially exploded perspective view of the same relay, and Fig. 3 A and B are schematic side longitudinal sections of the same relay with partial cross-sections omitted. A plan view and a schematic vertical cross-sectional view are shown, respectively.

１は鉄心でその下端には鍔部１ａが形成され、
コイル２の巻回したボビン３の中空孔に挿通され
ることによつて主磁気回路の起磁力発生部を構成
する。 1 is an iron core with a flange 1a formed at its lower end;
By being inserted into the hollow hole of the bobbin 3 around which the coil 2 is wound, it constitutes a magnetomotive force generating section of the main magnetic circuit.

継鉄片４は、前記鉄心１の上端に係着する水平
片４ａと前記鉄心１の鍔部１ａ付近迄延出する垂
直片４ｂとから成り、水平片４ａと鉄心１の上端
との係着は、水平片４ａに穿たれた孔４ｃに鉄心
１の上端部を通した後、その上端部をかしめるこ
とによつて行う。 The yoke piece 4 consists of a horizontal piece 4a that is engaged with the upper end of the iron core 1 and a vertical piece 4b that extends to the vicinity of the flange 1a of the iron core 1. The engagement between the horizontal piece 4a and the upper end of the iron core 1 is as follows. This is done by passing the upper end of the iron core 1 through the hole 4c bored in the horizontal piece 4a, and then caulking the upper end.

継鉄片４の垂直片外側面には、板状で且つ非磁
性材のりん青銅から構成されるヒンジバネ５がＡ
およびＢ部にてかしめ固定され、垂直片４ｂの先
端部迄延出しているそのヒンジバネ５の先端に
は、後述する可動接極子の折曲部を支承するヒン
ジ部５ａが形成される。また、このヒンジバネ５
の略中央部には、折曲部を下側にした舌片状の弾
性ストツパー片５ｂが折曲形成される。 A hinge spring 5, which is plate-shaped and made of phosphor bronze, which is a non-magnetic material, is attached to the outside surface of the vertical piece of the yoke piece 4.
A hinge portion 5a is formed at the tip of the hinge spring 5, which is caulked and fixed at the B portion and extends to the tip of the vertical piece 4b, and supports a bent portion of a movable armature, which will be described later. Also, this hinge spring 5
A tongue-shaped elastic stopper piece 5b with the bent portion facing downward is bent and formed approximately at the center.

可動接極子６はその折曲部に切込部６ａを有
し、この切込部６ａに前記ヒンジ部５ａが係合し
て支承されるとともに、水平片６ｂは前記鉄心１
の鍔部１ａに対向し、垂直片６ｃは前記継鉄片４
の垂直片４ｂに対向する。また、この可動接極子
６の垂直片６ｃには前記弾性ストツパー片５ｂを
通す窓孔６ｂが設けられている。 The movable armature 6 has a notch 6a in its bent portion, and the hinge portion 5a is engaged with and supported by the notch 6a, and the horizontal piece 6b is connected to the iron core 1.
The vertical piece 6c faces the flange 1a of the yoke piece 4.
It faces the vertical piece 4b of. Further, the vertical piece 6c of the movable armature 6 is provided with a window hole 6b through which the elastic stopper piece 5b passes.

電磁ブロツクＡは、上記した鉄心１、ボビン
３、継鉄片４、ヒンジバネ５、可動接極子６の各
要素を組立てることによつて構成される。 The electromagnetic block A is constructed by assembling the above-mentioned iron core 1, bobbin 3, yoke piece 4, hinge spring 5, and movable armature 6.

基台７はプラスチツク成形加工によつて図示す
る様な形状に成形され、中央部に電磁ブロツクＡ
と接点部Ｂを隔離するための隔壁７ａを立設し、
第１図に於いてその隔壁７ａの左側を電磁ブロツ
クＡの取付部に、右側を接点部Ｂの取付部にして
いる。 The base 7 is formed into the shape shown in the figure by plastic molding, and has an electromagnetic block A in the center.
A partition wall 7a is erected to separate the contact portion B from the contact portion B.
In FIG. 1, the left side of the partition wall 7a is used as an attachment part for the electromagnetic block A, and the right side is used as an attachment part for the contact part B.

上記基台７の電磁ブロツクＡの取付部は、第２
図に示す様に、電磁ブロツクＡにおける継鉄片４
の垂直片４ｂ側縁部を案内する案内溝８ａ，８ｂ
を形設した前板７ｂ、後板７ｃと、同電磁ブロツ
クＡにおけるヒンジバネ５の弾性ストツパー片５
ｂの先端に係合する係合溝９を形設した、前記隔
壁７ａに一体形成される係合片７ｂを有してい
る。 The mounting part of the electromagnetic block A of the base 7 is the second
As shown in the figure, the yoke piece 4 in the electromagnetic block A
Guide grooves 8a, 8b for guiding the side edges of the vertical piece 4b
The front plate 7b, the rear plate 7c, and the elastic stopper piece 5 of the hinge spring 5 in the same electromagnetic block A.
It has an engaging piece 7b formed integrally with the partition wall 7a and having an engaging groove 9 that engages with the tip of the partition wall 7a.

基台７への電磁ブロツクＡの取付けは、第２図
に示す様に、電磁ブロツクＡを基台７の上方から
行う。電磁ブロツクＡを矢印Ｐ方向に降ろすとと
もに、継鉄片４の垂直片側縁部を案内溝８ａ，８
ｂに係合させ、そのまま下方に押圧する。係合当
初の段階では、ヒンジバネ５の弾性ストツパー片
５ｂは係合片７ｂに接触しないが、押圧を更に進
めると上記ストツパー片５ｂの先端部分が係合片
７ｄに押圧される。そして、上記継鉄片４の垂直
片側縁部先端が案内溝８ａ，８ｂの最下端で係止
される瞬間に上記ストツパー片５ｂの先端が、そ
の復帰弾性力によつて係合溝９に係合する。 The electromagnetic block A is attached to the base 7 from above the base 7, as shown in FIG. While lowering the electromagnetic block A in the direction of arrow P, the vertical one side edge of the yoke piece 4 is inserted into the guide grooves 8a, 8.
b, and press downward. At the initial stage of engagement, the elastic stopper piece 5b of the hinge spring 5 does not come into contact with the engagement piece 7b, but as the pressing progresses further, the tip of the stopper piece 5b is pressed against the engagement piece 7d. Then, at the moment when the tip of one vertical edge of the yoke piece 4 is locked at the lowest end of the guide grooves 8a, 8b, the tip of the stopper piece 5b is engaged with the engagement groove 9 by its return elastic force. do.

つまり、電磁ブロツクＡの、前記垂直片４ｂ側
縁部の先端と前記ストツパー片５ｂの先端との長
さが、本体７の、前記案内溝８ａ，８ｂの最下端
と前記係合溝９との長さに一致する様、各要素の
位置、長さが設定されているため、電磁ブロツク
Ａを基台７の上方から下方に一杯に押圧するだけ
で、基台７への電磁ブロツクＡの取付けが完了す
る。この様に基台７と電磁ブロツクＡの係合が弾
性ストツパー片５ｂと係合溝９によつて行われる
ため、ネジや板バネ等の取付要素を全く不要と
し、しかも係合はストツパー片５ｂの先端部弾性
力によつて行われるため位置決めが確実なものと
なる。 That is, the length between the tip of the side edge of the vertical piece 4b of the electromagnetic block A and the tip of the stopper piece 5b is the same as the length between the lowermost end of the guide grooves 8a, 8b of the main body 7 and the engagement groove 9. Since the position and length of each element are set to match the length, the electromagnetic block A can be attached to the base 7 by simply pressing it fully downward from the top of the base 7. is completed. In this way, since the base 7 and the electromagnetic block A are engaged with each other by the elastic stopper piece 5b and the engagement groove 9, there is no need for any mounting elements such as screws or leaf springs, and the engagement is made with the stopper piece 5b. Since this is done by the elastic force of the tip, positioning is ensured.

次に基台７の右側部（第１図に於いて）に取付
けられる接点部Ｂについて説明する。 Next, the contact portion B attached to the right side of the base 7 (in FIG. 1) will be explained.

接点部Ｂは、固定接点板１１、その両側部に配
置される第１の可動接点板１２、第２の可動接点
板１３、可動接点板１２の右側部（第１図に於い
て）に配置される復帰バネ１４、および電磁ブロ
ツクＡの可動接極子６の動きを可動接点板１２，
１３、復帰バネ１４に伝達するプラスチツク製の
カード片１５とから構成され、前記可動接点板１
２，１３は、更に可動接点板本体１２ａ，１３ａ
とこの可動接点板本体にかしめ固着する端子片１
２ｂ，１３ｂとから構成され、また可動接点板本
体１２ａ，１３ａおよび復帰バネ１４の下部には
基台７との係合用のストツパー片１２ｃ，１３
ｃ，１４ａが一体形成されている。 The contact portion B includes a fixed contact plate 11, a first movable contact plate 12 disposed on both sides thereof, a second movable contact plate 13, and a right side of the movable contact plate 12 (in FIG. 1). The movement of the return spring 14 and the movable armature 6 of the electromagnetic block A is controlled by the movable contact plate 12,
13, a plastic card piece 15 that transmits to the return spring 14, and the movable contact plate 1
2 and 13 further indicate movable contact plate bodies 12a and 13a.
Terminal piece 1 that is caulked and fixed to the movable contact plate body
2b and 13b, and stopper pieces 12c and 13 for engagement with the base 7 are provided below the movable contact plate bodies 12a and 13a and the return spring 14.
c, 14a are integrally formed.

基台７の右側部（第１図に於いて）には、上記
固定接点板１１の先端部（上端部）を基台の下面
から上面に向けて挿入可能な固定接点板保持孔１
６ｃと、その両側縁部を案内する固定接点板案内
溝１６ａ，１６ｂを形設した固定接点板保持片７
ｃ，７ｆと、上記可動接点板１２，１３の下端部
を基台の上面から下面に向けて挿入可能な可動接
点板保持孔１７，１８と、および上記復帰バネ１
４の下端部を同じく基台の上面から下面に向けて
挿入可能な復帰バネ保持孔１９とが設けられ、基
台７の隔壁７ａに対し、上記可動接点板保持孔１
８、上記固定接点板保持孔および固定接点板案内
溝１６ａ，１６ｂ、上記可動接点板保持孔１７、
上記復帰バネ保持孔１９がこの順に配設される。 A fixed contact plate holding hole 1 is provided on the right side of the base 7 (in FIG. 1) into which the tip (upper end) of the fixed contact plate 11 can be inserted from the bottom surface of the base toward the top surface.
6c, and a fixed contact plate holding piece 7 formed with fixed contact plate guide grooves 16a and 16b for guiding both side edges thereof.
c, 7f, movable contact plate holding holes 17, 18 into which the lower ends of the movable contact plates 12, 13 can be inserted from the top surface of the base toward the bottom surface, and the return spring 1.
A return spring holding hole 19 is provided in which the lower end of the movable contact plate holding hole 1 can be inserted from the top surface of the base 7 toward the bottom surface of the base 7.
8, the fixed contact plate holding hole and fixed contact plate guide grooves 16a, 16b, the movable contact plate holding hole 17,
The return spring holding holes 19 are arranged in this order.

以上の構成から成る接点部Ｂの基台７への取付
けは、先ず端子片１２ｂ，１３ｂがかしめ固着し
た可動接点板１２，１３に取付けから始まる。前
述した様に可動接点板１２，１３はその下端部か
ら、即ち端子片１２ｂ，１３ｂから保持孔１７，
１８にスライド挿入して保持される。この可動接
点板の保持は、ストツパー片１２ｃ，１３ｃが保
持孔１７，１８内に形設されている係合溝（図示
せず）に係合することによつて行われ、その係合
部の構成は前述した電磁ブロツクＡの係合部の構
成と同一である。従つて、可動接点板１２，１３
の下端部から保持孔１７，１８に挿入していき、
ストツパー片１２ｃ，１３ｃが上記係合溝に係合
した時に可動接点板の取付けが完了する。 Attachment of the contact portion B having the above configuration to the base 7 begins with attachment of the terminal pieces 12b, 13b to the movable contact plates 12, 13 to which the terminal pieces 12b, 13b are caulked and fixed. As mentioned above, the movable contact plates 12 and 13 are connected from their lower ends, that is, from the terminal pieces 12b and 13b to the holding holes 17 and 13.
18 and is held there. The movable contact plate is held by the stopper pieces 12c, 13c engaging with engagement grooves (not shown) formed in the holding holes 17, 18. The structure is the same as that of the engaging portion of the electromagnetic block A described above. Therefore, the movable contact plates 12, 13
Insert into the holding holes 17 and 18 from the lower end of the
The attachment of the movable contact plate is completed when the stopper pieces 12c, 13c engage with the engagement grooves.

可動接点板１２，１３の取付けを終えると次い
で復帰バネ１４の取付けを行うが、この復帰バネ
の取付けも可動接点板１２，１３と全く同様であ
つて、その下端部から保持孔１９に挿入してい
き、ストツパ片１４ａが保持孔９内に形設される
係合溝（図示せず）に係合した時、同復帰バネの
取付けが終了する。 After the installation of the movable contact plates 12 and 13 is completed, the return spring 14 is installed next, and the installation of this return spring is exactly the same as that of the movable contact plates 12 and 13, and is inserted into the holding hole 19 from its lower end. Then, when the stopper piece 14a engages with an engagement groove (not shown) formed in the holding hole 9, the installation of the return spring is completed.

復帰バネ１４の取付けを終了すると固定接点板
１１の取付けを行う。 After completing the installation of the return spring 14, the fixed contact plate 11 is installed.

前述の様に、この固定接点板１１の取付けは、
基台７へ先端部から挿通する様にして、つまり基
台７の下方から上方にスライド挿入する様にして
行う。第４図はこの様にして固定接点板を、本体
に形成される保持孔１６ｃ、および案内溝１６
ａ，１６ｂ（第１図参照）にスライド挿入する途
中段階の状態を示している。 As mentioned above, the installation of this fixed contact plate 11 is as follows:
This is done by inserting it into the base 7 from the tip, that is, by sliding it from the bottom to the top of the base 7. FIG. 4 shows how the fixed contact plate is connected to the holding hole 16c formed in the main body and the guide groove 16.
16a and 16b (see FIG. 1).

同図から明らかな様に、この段階では、可動接
点板１２，１３同士はその接点を当接させている
が、固定接点板１１は可動接点板に接触すること
が無い。結局、固定接点板と可動接点板が接触す
るのは、つまり両者の接点が接触するのは、固定
接点板１１のスライド挿入を完了した時点であ
る。それ故、可動接点板に全く過剰な横方向応力
が生ずることが無く、従つて変形等のトラブルを
招来させることが無い。この様に、固定接点板１
１を基台７の下方からスライド挿入して所定の位
置に配置することによつて、若干内側へ屈曲して
いる可動接点板１２，１３間にスムーズにその接
点板１１ａを配置させることが出来、可動接点板
１２，１３を変形させる心配が全く無くなるとい
う利点を有している。 As is clear from the figure, at this stage, the movable contact plates 12 and 13 have their contacts in contact with each other, but the fixed contact plate 11 does not come into contact with the movable contact plate. In the end, the fixed contact plate and the movable contact plate come into contact, that is, their contacts come into contact at the time when the sliding insertion of the fixed contact plate 11 is completed. Therefore, no excessive lateral stress is generated on the movable contact plate, and therefore no troubles such as deformation occur. In this way, fixed contact plate 1
1 from below the base 7 and placing it in a predetermined position, the contact plate 11a can be smoothly placed between the movable contact plates 12 and 13 which are bent slightly inward. This has the advantage that there is no need to worry about deforming the movable contact plates 12, 13.

また、端子片１１ｂを折曲し、更にその水平片
部に窓孔１１ｃを設けているのは、固定接点板端
子と可動接点板端子の配列を汎用リレーの端子配
列に合わせるためで、従つてこの窓孔１１ｃを可
動接点板１２と端子片１３ｂが挿通することにな
るが、この様に固定接点板の端子片を簡単な形状
にするだけで、容易に上記端子配列を形成出来る
利点も有している。 Furthermore, the reason why the terminal piece 11b is bent and the window hole 11c is provided in the horizontal piece is to match the arrangement of the fixed contact plate terminal and the movable contact plate terminal to the terminal arrangement of the general-purpose relay. The movable contact plate 12 and the terminal piece 13b will be inserted through this window hole 11c, but there is also the advantage that the above-mentioned terminal arrangement can be easily formed by simply making the terminal piece of the fixed contact plate into a simple shape. are doing.

なお、２１，２２はコイル２の端子片であつ
て、接点部Ｂ、電磁ブロツクＡの取付け前後に独
立に基７への圧入固定される。 Note that 21 and 22 are terminal pieces of the coil 2, which are press-fitted and fixed into the base 7 independently before and after the contact portion B and the electromagnetic block A are attached.

上述に様にして固定接点板１１のスライド挿入
を終え、各接点板の配置関係が特定された後は、
固定接点板１１の固定をするため、つまり同接点
板の取付けを完了するため底板２０をその係合爪
２０ａ〜２０ｂによつて基台７に係着する。 After the fixed contact plate 11 has been slid and inserted as described above and the arrangement relationship of each contact plate has been specified,
In order to fix the fixed contact plate 11, that is, to complete the installation of the contact plate, the bottom plate 20 is engaged with the base 7 by its engaging claws 20a to 20b.

この底板２０には、上記各端子片の挿通孔、即
ち、可動接点板の端子片１２ｂ，１３ｂの挿通孔
２０ｅ，２０ｆ、固定接点板の端子片１１ｂの挿
通孔２０ｇ、およびコイル端子片２１，２２の挿
通孔２０ｈ，２０ｉが穿設され、底辺２０の係着
時に各端子片が対応の各挿通孔を挿通する。そし
て、この底板２０の係着によつて、固定接点板の
端子片１１ｂの水平片部が基台７と底板２０とで
狭持固定されることになるから、固定接点板１１
の本体への取付けが最終的に完了する。 This bottom plate 20 has insertion holes 20e and 20f for the terminal pieces 12b and 13b of the movable contact plate, an insertion hole 20g for the terminal piece 11b of the fixed contact plate, and a coil terminal piece 21, 22 insertion holes 20h and 20i are formed, and each terminal piece is inserted through the corresponding insertion hole when the bottom side 20 is engaged. By this engagement of the bottom plate 20, the horizontal piece of the terminal piece 11b of the fixed contact plate is held and fixed between the base 7 and the bottom plate 20, so that the fixed contact plate 11
finally completes its installation on the main body.

接点部Ｂの各接点板および復帰バネの取付けは
以上の様にして行われる。 The contact plates and return springs of the contact portion B are attached as described above.

可動接点板６の動きを接点部Ｂに伝達するため
のカード片１５の取付けは、上記の各要素を本体
に取付けた後、組立ての最終段階に於いて行われ
る。 Attachment of the card piece 15 for transmitting the movement of the movable contact plate 6 to the contact section B is carried out in the final stage of assembly after the above-mentioned elements have been attached to the main body.

カード片１５は、可動接点板１２，１３の上端
部を支持する溝１５ａ，１５ｂと、復帰バネ１４
の上端部に形成される長孔１４ｂに係合する第１
の突起１５ｃと、可動接極子６の垂直片上端部に
形成される長孔６ｅに係合する第２の突起１５ｄ
と、および基台の隔壁７ａ上部と若干の空隙２３
（第３図参照）を介して重なり合う舌片１５ｅか
ら成り、上記第１の突起１５ｃと第２の突起１５
ｄの係合力によつて保持される。そしてコイルに
通電されない通常時に於いて可動接点板１２と固
定接点板１１が接触する様、また通電時に於いて
可動接点板１３と固定接点板１１が接触する様、
上記溝１５ａ，１５ｂの各位置が適当に設定され
ている。 The card piece 15 has grooves 15a and 15b that support the upper ends of the movable contact plates 12 and 13, and a return spring 14.
The first
and a second protrusion 15d that engages with a long hole 6e formed in the upper end of the vertical piece of the movable armature 6.
and the upper part of the partition wall 7a of the base and a slight gap 23
(See FIG. 3) The first protrusion 15c and the second protrusion 15
It is held by the engagement force of d. Then, the movable contact plate 12 and the fixed contact plate 11 are in contact with each other during normal times when the coil is not energized, and the movable contact plate 13 and the fixed contact plate 11 are in contact with each other when energized.
The respective positions of the grooves 15a and 15b are set appropriately.

即ち、このカード片１５を取付けることによ
り、通常時に於いては復帰バネ１４の作用によつ
て固定接点１１と可動接点板１２が接触状態を保
持する一方、通電時に於いては復帰バネ１４の弾
性力に抗する可動接触子６の作用によつてカード
片１５が右方向（第１図に於いて）へ作動し、固
定接点板１１と可動接点板１３が接触する状態を
形成する様になる。従つて、コイルへの通電をオ
ンオフすることによつて、固定接点板１１への接
触可動接点板を切換えることが出来る。 That is, by attaching this card piece 15, the fixed contact 11 and the movable contact plate 12 maintain a contact state under normal conditions due to the action of the return spring 14, while the elasticity of the return spring 14 is maintained during energization. Due to the action of the movable contact 6 resisting the force, the card piece 15 moves to the right (in FIG. 1), so that the fixed contact plate 11 and the movable contact plate 13 come into contact with each other. . Therefore, by turning on and off the power supply to the coil, the contact of the movable contact plate to the fixed contact plate 11 can be switched.

なお、２４は電磁ブロツクＡ、接点部Ｂおよび
基台７に全体をカバーするケースで、組立ての最
後に取付けられる。 Note that 24 is a case that covers the entire electromagnetic block A, contact portion B, and base 7, and is attached at the end of assembly.

以上、この発明に係る小型リレーの実施例につ
いて詳述したが、上記説明から明らかな様にこの
発明によれば、復帰バネと第１、第２可動接点板
については基台上面側から取付け、固定接点板に
ついては基台下面側から取付けることができるた
め、接点部の各要素のうち可動接点板を先に取付
け、次いで固定接点板を取付ける様にすることに
よつて、作業がスムーズになるとともに可動接点
板の変形を未然に防止することが出来る。従つて
作業能率を高め、且つ接点部の動作特性に係る品
質が一定の小型リレーを提供することが出来る。
また、固定接点板の形状を複雑化することなく、
更に基台の形状も複雑化せずに、汎用の端子配列
を有する小型リレーを提供することが出来る。 The embodiments of the small relay according to the present invention have been described in detail above, but as is clear from the above description, according to the present invention, the return spring and the first and second movable contact plates are attached from the top side of the base, The fixed contact plate can be attached from the bottom side of the base, so the work will be smoother by attaching the movable contact plate first, and then the fixed contact plate among the various contact elements. At the same time, deformation of the movable contact plate can be prevented. Therefore, it is possible to provide a compact relay that increases work efficiency and has constant quality regarding the operating characteristics of the contact portion.
In addition, without complicating the shape of the fixed contact plate,
Furthermore, it is possible to provide a compact relay having a general-purpose terminal arrangement without complicating the shape of the base.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の実施例である小型リレーの
分解斜視図、第２図は同リレーの一部分解斜視
図、第３図イ，ロは同リレーの一部断面表示を省
略した概略側縦断面図と概略正縦断面図、第４図
は同リレー接点部の組立途中段階の状態を示す図
である。 ７……基台、１１……固定接点板、１１ｂ……
端子片、１１ｃ……窓孔、１２……第１の可動接
点板、１３……第２の可動接点板、１４……復帰
バネ。 Fig. 1 is an exploded perspective view of a small relay that is an embodiment of the present invention, Fig. 2 is a partially exploded perspective view of the same relay, and Fig. 3 A and B are schematic side longitudinal sections of the same relay with partial cross-sections omitted. A plan view, a schematic vertical cross-sectional view, and FIG. 4 are diagrams showing the state of the relay contact portion in the middle of assembly. 7...Base, 11...Fixed contact plate, 11b...
Terminal piece, 11c... Window hole, 12... First movable contact plate, 13... Second movable contact plate, 14... Return spring.

Claims (1)

【特許請求の範囲】[Claims] １ 復帰バネ、第１の可動接点板、固定接点板、
第２の可動接点板が配設され、固定接点板は第１
の可動接点板と第２の可動接点板の間に配設され
る基台を備え、上記復帰バネおよび上記各接点板
の接点板本体が基台の上面に位置し、上記各接点
板の端子片が基台の下面に位置する小型リレーに
おいて、前記基台は、前記復帰バネ、および第
１、第２の可動接点板の各々の下端部を基台の上
面から下面に向けて挿入可能な復帰バネ保持孔お
よび第１、第２の可動接点板保持孔と、前記固定
接点板の上端部を基台の下面から上面に向けて挿
入可能な固定接点板保持孔とを有し、前記固定接
点板は端子片を折曲するとともに、その折曲した
端子片の水平片部に前記第２の可動接点板の端子
片を通す窓孔を形成したことを特徴とする小型リ
レー。1 Return spring, first movable contact plate, fixed contact plate,
A second movable contact plate is arranged, and a fixed contact plate is arranged on the first movable contact plate.
a base disposed between the movable contact plate and the second movable contact plate, the return spring and the contact plate body of each of the contact plates are located on the top surface of the base, and the terminal piece of each of the contact plates is located on the top surface of the base; In the small relay located on the lower surface of the base, the base includes a return spring that can be inserted so that the lower ends of the return spring and each of the first and second movable contact plates are inserted from the upper surface of the base toward the lower surface. The fixed contact plate has a holding hole, first and second movable contact plate holding holes, and a fixed contact plate holding hole into which the upper end of the fixed contact plate can be inserted from the bottom surface of the base toward the top surface. A small relay characterized in that the terminal piece is bent and a window hole through which the terminal piece of the second movable contact plate passes is formed in the horizontal piece of the bent terminal piece.