JPH0322834Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は電磁継電器、特に、接点機構を開閉す
る可動ブロツクの浮上がり、位置ずれを防止する
電磁継電器に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an electromagnetic relay, and particularly to an electromagnetic relay that prevents a movable block that opens and closes a contact mechanism from floating or shifting.

（従来技術と考案が解決しようとする課題） 従来、電磁継電器としては、例えば、固定ブロ
ツクに固定した電磁石ブロツクと、この電磁石ブ
ロツクの励磁、消磁に基づいて動作する鉄片を備
えた可動ブロツクと、この可動ブロツクを往復移
動可能に挾着、保持する２枚の板ばねと、前記電
磁石ブロツクの励磁、消磁に基づいて往復移動す
る前記可動ブロツクで接点を開閉する接点機構
と、前記固定ブロツクに嵌合して前記接点機構を
覆うケースとからなる電磁継電器において、前記
板ばねの両端部を固定ブロツクに圧入、支持した
ものが提案されている。(Problems to be Solved by Prior Art and Invention) Conventionally, electromagnetic relays include, for example, an electromagnetic block fixed to a fixed block, a movable block equipped with an iron piece that operates based on the excitation and demagnetization of this electromagnetic block, and Two leaf springs clamp and hold this movable block so that it can be moved back and forth, a contact mechanism that opens and closes contacts with the movable block that moves back and forth based on the excitation and demagnetization of the electromagnetic block, and a contact mechanism that is fitted into the fixed block. In an electromagnetic relay comprising a case that covers the contact mechanism, an electromagnetic relay has been proposed in which both ends of the leaf spring are press-fitted and supported by a fixed block.

しかしながら、前記板ばねの端部は固定ブロツ
クに圧入、支持されているにすぎないので、輸送
時の振動、可動ブロツクの連続動作にともなう振
動等により、板ばねが浮上がり、これにつれて可
動ブロツクも浮上がる。しかも、板ばねを固定ブ
ロツクの所定位置に正確に圧入するのは容易でな
く、圧入位置がずれ易い。このため、鉄片と電磁
石ブロツクとの対向面積が減少し、対向面を通過
する磁力線が減少するので、駆動力等が低下し、
応答速度等の動作特性が低下する。 However, since the ends of the leaf springs are simply press-fitted and supported by the fixed block, vibrations during transportation and vibrations caused by continuous movement of the movable block cause the leaf springs to lift up, and the movable blocks also lift up. Float up. Moreover, it is not easy to accurately press fit the leaf spring into a predetermined position of the fixing block, and the press fit position is likely to shift. For this reason, the opposing area between the iron piece and the electromagnetic block is reduced, and the lines of magnetic force passing through the opposing surfaces are reduced, resulting in a reduction in driving force, etc.
Operating characteristics such as response speed deteriorate.

一方、前記板ばねの端部を固定ブロツクに強固
に固定するために接着剤を注入、固化することも
考えられるが、所定量の接着剤を所定位置に正確
に注入する作業は容易でなく、組立作業性が悪い
とともに、板ばねに沿つて流出、固化した接着剤
が、板ばねのばね特性を変化させるという問題点
がある。 On the other hand, in order to firmly fix the end of the leaf spring to the fixing block, it is possible to inject and harden adhesive, but it is difficult to accurately inject a predetermined amount of adhesive into a predetermined position. There are problems in that assembly workability is poor, and adhesive that flows out and hardens along the leaf spring changes the spring characteristics of the leaf spring.

本考案の目的は、前記問題点に鑑みてなされた
もので、板ばねの浮上がり、位置ずれによる動作
特性の低下を防止し、生産性が高く、ばね特性が
変化しない電磁継電器を提供することにある。 The purpose of the present invention was made in view of the above-mentioned problems, and is to provide an electromagnetic relay that prevents deterioration of operating characteristics due to lifting and positional displacement of leaf springs, has high productivity, and does not change spring characteristics. It is in.

（課題を解決するための手段） 本考案にかかる電磁継電器は、前記目的を達成
するため、前述の従来例にかかる電磁継電器にお
いて、略コ字形状の板材からなり、かつ、その係
合脚に設けた圧入溝を前記固定ブロツクに設けた
係合突部に圧入、固定した固定部材で、前記２枚
の板ばねの同一方向側の対向する一端部を、前記
固定ブロツクに押圧、固定した構成としてある。(Means for Solving the Problem) In order to achieve the above-mentioned object, the electromagnetic relay according to the present invention is different from the electromagnetic relay according to the conventional example described above, and is made of a substantially U-shaped plate material, and is provided on the engaging leg. A fixing member having a press-fit groove press-fitted into an engagement protrusion provided on the fixing block and fixed thereto presses and fixes opposing ends of the two leaf springs in the same direction to the fixing block. be.

（作用と考案の効果） したがつて、本考案にかかる電磁継電器によれ
ば、固定部材が２枚の板ばねの同一方向側の対向
する一端部を固定ブロツクに押圧、固定するた
め、板ばねの浮上がりがなくなり、さらに、板ば
ねの圧入位置にずれがあつても、固定部材を固定
ブロツクに取り付ける際の位置規制によつて板ば
ねを正しい位置に修正できることになる。(Function and effect of the invention) Therefore, according to the electromagnetic relay according to the present invention, since the fixing member presses and fixes the opposing ends of the two leaf springs in the same direction to the fixing block, the leaf springs Moreover, even if there is a deviation in the press-fitting position of the leaf spring, the leaf spring can be corrected to the correct position by regulating the position when attaching the fixing member to the fixing block.

このため、板ばねに挾着保持された可動ブロツ
クの浮上がり、位置ずれがなくなり、動作特性の
低下を防止できる。 This prevents the movable block held by the leaf spring from floating or shifting, thereby preventing deterioration in operating characteristics.

しかも、組立作業に接着剤の注入、固化を必要
としないので、組立作業が容易となり、生産性が
向上するとともに、板ばねのばね特性も変化しな
い。 Moreover, since the injection and hardening of adhesive is not required for the assembly operation, the assembly operation is facilitated, productivity is improved, and the spring characteristics of the leaf spring do not change.

特に、本考案によれば、１枚の固定部材で２枚
の板ばねの同一方向側の対向する一端部を固定ブ
ロツクに押圧、固定できるので、少ない部品点
数、組立工数で従来例にかかる問題点を解決でき
るという効果がある。 In particular, according to the present invention, one fixing member can press and fix opposite ends of two leaf springs in the same direction to a fixing block, reducing the number of parts and assembling man-hours, thereby solving the problem of the conventional example. It has the effect of being able to resolve points.

（実施例） 以下、本考案にかかる電磁継電器の実施例を添
附図面に従つて説明する。(Embodiments) Hereinafter, embodiments of the electromagnetic relay according to the present invention will be described with reference to the accompanying drawings.

本考案にかかる電磁継電器の一実施例は、概
略、固定ブロツク１と、電磁石ブロツク１０と、
可動ブロツク２０と、２枚の復帰ばね３０，３５
と、固定部材４０と、ケース５０とから構成され
ている。 An embodiment of the electromagnetic relay according to the present invention generally includes a fixed block 1, an electromagnetic block 10,
Movable block 20 and two return springs 30, 35
, a fixing member 40 , and a case 50 .

固定ブロツク１は、適宜樹脂で長方形状の長孔
３，３を長手方向の両側に並設してあるととも
に、長孔３，３の間に凹部４を形成したベース２
に、接点端子９ａ，９ｂ，９ｃを圧入固定したも
のである。各接点端子の接点部（先端）９a′，９
b′，９c′は、前記長孔３，３内に位置している。 The fixing block 1 has a base 2 in which rectangular long holes 3, 3 are arranged in parallel on both sides in the longitudinal direction and a recess 4 is formed between the long holes 3, 3 made of a suitable resin.
Contact terminals 9a, 9b, and 9c are press-fitted and fixed therein. Contact part (tip) of each contact terminal 9a', 9
b', 9c' are located within the elongated holes 3, 3.

さらに、固定ブロツク１の上端角部には、断面
略Ｌ字形状の係合突部８が突出しているととも
に、この係合突部８の内側面に突出部７が対向し
て突出している。そして、係合突部８と突出部７
とによつて形成される２つのスリツトのうち、後
述する板ばね３０，３５を挿入するスリツトを挿
入スリツト６、後述する固定部材４０を嵌合する
スリツトを嵌合スリツト５としてある。 Furthermore, an engaging protrusion 8 having a substantially L-shaped cross section protrudes from the upper end corner of the fixed block 1, and a protruding part 7 protrudes from the inner surface of the engaging protrusion 8, opposing to the engaging protrusion 8. Then, the engaging protrusion 8 and the protrusion 7
Of the two slits formed by the above, the slit into which leaf springs 30 and 35, which will be described later, are inserted is called an insertion slit 6, and the slit into which a fixing member 40, which will be described later, is fitted is called a fitting slit 5.

電磁石ブロツク１０は、Ｉ形鉄心１１をインサ
ート成形したスプール１２に、コイル１７を巻回
するとともに、スプール１２の台部１３にヨーク
１９の突片（図示せず）を圧入してヨーク１９を
一体結合したもので、前記ベース２の凹部４に熱
カシメにより固定されている。また、コイル端子
１８，１８は台部１３に圧入固定され、ベース２
の下方に突出している。 The electromagnet block 10 is constructed by winding a coil 17 around a spool 12 into which an I-shaped iron core 11 is insert-molded, and by press-fitting a protruding piece (not shown) of a yoke 19 into a base 13 of the spool 12 to integrate the yoke 19. It is fixed to the recess 4 of the base 2 by thermal caulking. Further, the coil terminals 18, 18 are press-fitted and fixed to the base 13, and the base 2
protrudes below.

可動ブロツク２０は適宜樹脂で一体に成形した
可動台２１の枠部２２，２２に鉄片２６ａ，２６
ｂ及びこれに挟まれる永久磁石２７，２７を固定
し、可動接触片２９ａ，２９ｂ，２９ｃ，２９ｄ
を適宜両側に配置固定したものである。そして、
可動台２１は、そのガイド孔２１ａ，２１ｂに前
記スプール１２の突起１４ａ，１４ｂを遊嵌し
て、可動台２１の位置決めを行なう。この可動台
２１は、鉄片２６ａ，２６ｂが前記鉄心１１の突
出端部１１ａ，１１ｂに対して一定のギヤツプｇ
をもつて対向するように設置され、板ばね３０，
３５にて矢印Ａ，Ｂ方向に平行状態で往復移動可
能に挾着、保持されている。 The movable block 20 has iron pieces 26a, 26 attached to frames 22, 22 of a movable stand 21 integrally molded with resin.
b and the permanent magnets 27, 27 sandwiched therebetween are fixed, and the movable contact pieces 29a, 29b, 29c, 29d
are arranged and fixed on both sides as appropriate. and,
The movable base 21 is positioned by loosely fitting the projections 14a, 14b of the spool 12 into its guide holes 21a, 21b. This movable base 21 has iron pieces 26a and 26b that are set at a constant gap g with respect to the protruding ends 11a and 11b of the iron core 11.
The leaf springs 30,
At 35, it is clamped and held so that it can reciprocate in parallel in the directions of arrows A and B.

板ばね３０は前記可動台２１に形成した小突起
２４，２４に嵌合して熱カシメし、両端部３２，
３２をベース２の挿入スリツト６，６に挿入し、
支持したものである。他方、板ばね３５は可動台
２１に形成した小突起２５，２５に嵌合して熱カ
シメし、両端部３２，３２を前記ベース２の挿入
スリツト６，６に挿入し、支持したものである。
したがつて、可動台２１は板ばね３０，３５に挟
着保持された状態で支持され、平行移動を行な
う。 The leaf spring 30 is fitted into the small protrusions 24, 24 formed on the movable table 21, and is thermally caulked, so that both ends 32,
32 into the insertion slits 6, 6 of the base 2,
I supported it. On the other hand, the leaf spring 35 is fitted into small protrusions 25, 25 formed on the movable base 21 and heat-swaged, and both ends 32, 32 are inserted into the insertion slits 6, 6 of the base 2 and supported. .
Therefore, the movable base 21 is supported while being held between the leaf springs 30 and 35, and moves in parallel.

固定部材４０は略コ字形の板材からなり、その
２本の係合脚４１，４２は各々ベース２の係合突
部８に圧入可能な圧入溝４１ａ，４２ａを設けて
あるとともに、挿入スリツト６，６に挿入された
板ばね３０，３５を押圧、固定する切欠部４１
ｂ，４２ｂを並設している。したがつて、前記圧
入溝４１ａ，４２ａをベース２の係合突部８，８
に圧入、固定すると、切欠部４１ｂ，４２ｂが前
記挿入スリツト６，６に挿入してある板ばね３
０，３５の一端部３２，３２を押圧、固定し、板
ばね３０，３５の位置ずれ、浮上がりを防止す
る。 The fixing member 40 is made of a substantially U-shaped plate material, and its two engaging legs 41 and 42 are provided with press-fitting grooves 41a and 42a that can be press-fitted into the engaging protrusion 8 of the base 2, respectively, and the insertion slits 6, A notch 41 that presses and fixes the leaf springs 30 and 35 inserted into the
b, 42b are installed in parallel. Therefore, the press-fitting grooves 41a, 42a are connected to the engagement protrusions 8, 8 of the base 2.
When the plate spring 3 is press-fitted and fixed, the notches 41b and 42b are inserted into the insertion slits 6 and 6.
0 and 35 are pressed and fixed to prevent the leaf springs 30 and 35 from shifting and floating.

ケース５０は、可動ブロツク２０を装着した固
定ブロツク１を覆う箱体形状を有している。 The case 50 has a box shape that covers the fixed block 1 to which the movable block 20 is attached.

次に、本考案にかかる電磁継電器の組立方法に
ついて説明する。 Next, a method for assembling the electromagnetic relay according to the present invention will be explained.

まず、電磁石ブロツク１０を凹部４に固定した
固定ブロツク１の上方から、板ばね３０，３５を
取付けた可動ブロツク２０を嵌合する。このと
き、板ばね３０，３５の両端部３２，３２を挿入
スリツト６，６に挿入して位置決めする。 First, the movable block 20 to which the plate springs 30 and 35 are attached is fitted from above the fixed block 1 with the electromagnetic block 10 fixed in the recess 4. At this time, both ends 32, 32 of the leaf springs 30, 35 are inserted into the insertion slits 6, 6 and positioned.

そして、固定部材４０の係合脚４１，４２に設
けた圧入溝４１ａ，４２ａを、ベース２の係合突
部８，８に圧入するとともに、その切欠部４１
ｂ，４２ｂで板ばね３０，３５の一端部３２，３
２を押圧、固定する。 Then, the press-fit grooves 41a, 42a provided in the engagement legs 41, 42 of the fixing member 40 are press-fitted into the engagement protrusions 8, 8 of the base 2, and the notches 41, 42a are press-fitted into the engagement projections 8, 8 of the base 2.
One end portion 32, 3 of the leaf spring 30, 35 at b, 42b
Press and fix 2.

更に、固定ブロツク１の上方からケース５０を
嵌合し、電磁継電器の内部を密封することによ
り、組立が完了する。 Furthermore, the case 50 is fitted from above the fixed block 1, and the inside of the electromagnetic relay is sealed, thereby completing the assembly.

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

第１図は本考案にかかる一実施例の全体斜視
図、第２図は第１図の−線断面図、第３図は
第１図の−線断面図、第４図および第５図は
本考案にかかる一実施例の要部分解斜視図および
平面断面図である。 １……固定ブロツク、８……係合突部、１０…
…電磁石ブロツク、２０……可動ブロツク、２６
ａ，２６ｂ……鉄片、３０，３５……板ばね、４
０……固定部材、４１，４２……係合脚、４１
ａ，４２ａ……圧入溝、５０……ケース。 FIG. 1 is an overall perspective view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is a sectional view taken along the line -- in FIG. 1, and FIGS. 1 is an exploded perspective view and a plan sectional view of essential parts of an embodiment of the present invention; FIG. 1... Fixed block, 8... Engaging protrusion, 10...
...Electromagnetic block, 20...Movable block, 26
a, 26b... Iron piece, 30, 35... Leaf spring, 4
0...Fixing member, 41, 42...Engagement leg, 41
a, 42a...press-fit groove, 50...case.

Claims (1)

【実用新案登録請求の範囲】 固定ブロツクに固定した電磁石ブロツクと、こ
の電磁石ブロツクの励磁、消磁に基づいて動作す
る鉄片を備えた可動ブロツクと、この可動ブロツ
クを往復移動可能に挾着、保持する２枚の板ばね
と、前記電磁石ブロツクの励磁、消磁に基づいて
往復移動する前記可動ブロツクで接点を開閉する
接点機構と、前記固定ブロツクに嵌合して前記接
点機構を覆うケースとからなる電磁継電器におい
て、 略コ字形状の板材からなり、かつ、その係合脚
に設けた圧入溝を前記固定ブロツクに設けた係合
突部に圧入、固定した固定部材で、前記２枚の板
ばねの同一方向側の対向する一端部を、前記固定
ブロツクに押圧、固定したことを特徴とする電磁
継電器。[Claim for Utility Model Registration] An electromagnetic block fixed to a fixed block, a movable block equipped with an iron piece that operates based on the excitation and demagnetization of this electromagnetic block, and this movable block is clamped and held so as to be movable back and forth. An electromagnetic device consisting of two leaf springs, a contact mechanism that opens and closes a contact with the movable block that moves back and forth based on the excitation and demagnetization of the electromagnetic block, and a case that fits into the fixed block and covers the contact mechanism. In a relay, a fixing member is made of a substantially U-shaped plate material, and a press-fitting groove provided on the engagement leg is press-fitted and fixed into an engagement protrusion provided on the fixing block, and the fixing member 1. An electromagnetic relay characterized in that one end portion facing each other on the direction side is pressed and fixed to the fixed block.