JPH0584614B2 - - Google Patents
Info
- Publication number
- JPH0584614B2 JPH0584614B2 JP62331615A JP33161587A JPH0584614B2 JP H0584614 B2 JPH0584614 B2 JP H0584614B2 JP 62331615 A JP62331615 A JP 62331615A JP 33161587 A JP33161587 A JP 33161587A JP H0584614 B2 JPH0584614 B2 JP H0584614B2
- Authority
- JP
- Japan
- Prior art keywords
- base
- hoop
- male mold
- fixed contacts
- hoops
- 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
- 238000000465 moulding Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えばプリント基板に取り付ける
等して用いられるものであつてトグルスイツチや
スライドスイツチを含む小型スイツチのベース部
の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a base portion of a small switch, such as a toggle switch or a slide switch, which is used by being attached to a printed circuit board, for example.
この種の小型スイツチであつて、箱状のベース
の相対向する内側面にそれぞれ複数の固定接触子
を各々の表面の少なくとも一部分のベースの内側
面よりも突き出るように設けた構造のベース部を
有するものが、同一出願人によつて別途提案され
ている。
This type of small switch has a base portion having a structure in which a plurality of fixed contacts are provided on opposing inner surfaces of a box-shaped base so that at least a portion of each surface protrudes beyond the inner surface of the base. A separate proposal has been made by the same applicant.
その一例を第３図および第４図を参照して説明
すると、このスイツチは２極のトグルスイツチの
場合の例であり、上図のみが開口した箱状のベー
ス２およびカバー４であつて共に絶縁樹脂製のも
のから成るハウジング６と、当該ベース２の相対
向する内側面部にそれぞれ３本ずつ当該内側面の
上下方向に沿つて並設された固定接触子８ａ〜８
ｃおよび８ｄ〜８ｆであつて各々の表面の少なく
とも一部分がベース２の内側面よりも突き出たも
のと、ハウジング６内に運動可能に収納された絶
縁樹脂製の操作子１２と、当該操作子１２のベー
ス２内に位置する部分の両側面にそれぞれ取り付
けられた可動接触子１０ａおよび１０ｂであつて
固定接触子８ａ〜８ｃおよび８ｄ〜８ｆとの接触
用の突起１１ａおよび１１ｂを両端部にそれぞれ
有するものと、カバー４を貫通するレバー１６で
あつてその端部が操作子１２に連結されていて当
該操作子１２を操作可能なものとを備えている。 An example of this will be explained with reference to FIGS. 3 and 4. This switch is an example of a two-pole toggle switch, and only the upper figure is an open box-shaped base 2 and cover 4. A housing 6 made of insulating resin, and three fixed contacts 8a to 8 arranged in parallel along the vertical direction of the inner surface on opposing inner surfaces of the base 2.
c and 8d to 8f, each of which has at least a portion of its surface protruding beyond the inner surface of the base 2, an insulating resin operator 12 movably housed in the housing 6, and the operator 12. Movable contacts 10a and 10b are respectively attached to both sides of a portion located in the base 2 of the base 2, and have protrusions 11a and 11b at both ends for contact with fixed contacts 8a to 8c and 8d to 8f, respectively. and a lever 16 that passes through the cover 4 and whose end is connected to the operator 12 so that the operator 12 can be operated.
また、操作子１２の中央部内からレバー１６内
にかけて設けられた穴内には圧縮コイルばね（図
示省略）および上下動可能な滑動子１４が収納さ
れており、かつベース２の滑動子１４に対向する
部分には所要の形状をしたノツチカム部３が設け
られており、これによつてこのスイツチのノツチ
仕様を決めている。 In addition, a compression coil spring (not shown) and a slider 14 that is movable up and down are housed in a hole provided from the center of the operator 12 to the lever 16, and the slider 14 is opposite to the slider 14 of the base 2. A notch cam portion 3 having a desired shape is provided in this section, and this determines the notch specifications of this switch.
このスイツチのベース部１において前述したよ
うに固定接触子８ａ〜８ｆの表面をベース２の内
側面よりも突き出して凹凸をつけているのは、仮
に固定接触子８ａ〜８ｆの表面をベース２の内側
面と同一面としておくと、可動接触子１０ａ、１
０ｂの突起１１ａ，１１ｂがベース２の内側面に
接触してこすれ、それによつてスイツチ操作時に
ベース２の内側面が削られて絶縁樹脂の削り粉が
出てこれが接触子間に入る等して接触の信頼性が
低下する恐れがあるので、それを防止するためで
ある。 The reason why the surfaces of the fixed contacts 8a to 8f are protruded beyond the inner surface of the base 2 and made uneven as described above in the base part 1 of this switch is that the surfaces of the fixed contacts 8a to 8f are If the surface is the same as the inner surface, the movable contacts 10a, 1
The protrusions 11a and 11b of 0b contact and rub against the inner surface of the base 2, and as a result, when the switch is operated, the inner surface of the base 2 is scraped and shavings of the insulating resin come out, which enters between the contacts. This is to prevent the reliability of contact from decreasing.
尚、このようなベース部１は、トグルスイツチ
以外にスライドスイツチにも勿論適用することが
できる。 Incidentally, such a base portion 1 can of course be applied to a slide switch as well as a toggle switch.
ところが上記ベース部１は、上記のような構造
ゆえに、それを通常のインサート成形で製造する
のが困難であるという問題がある。
However, because of the above-described structure, the base portion 1 has a problem in that it is difficult to manufacture it by ordinary insert molding.
即ち、ベース部１をインサート成形する場合は
通常は、第５図Ａに示すように前記固定接触子８
ａ〜８ｃあるいは８ｄ〜８ｆとなるような複数の
（この例では三つの）金属片２８を上下両側のキ
ヤリア２４，２６で連結した構造のフープ３０
を、同図Ｂに示すように１組用いて、そのような
ものを第６図に示すように雌型３２および雄型３
４間に立てて装着した状態で、両型３２，３４間
に絶縁樹脂を注入してベース２を成形し、その後
雄型３４をフープ３０に沿つて上方に抜く。その
後、キヤリア２４，２６等の不要部を切断除去す
る。 That is, when insert molding the base portion 1, the fixed contact 8 is usually inserted as shown in FIG. 5A.
A hoop 30 having a structure in which a plurality of (three in this example) metal pieces 28, such as a to 8c or 8d to 8f, are connected by carriers 24 and 26 on both upper and lower sides.
using one set as shown in FIG.
4, insulating resin is injected between both molds 32 and 34 to form the base 2, and then the male mold 34 is pulled upward along the hoop 30. After that, unnecessary parts such as the carriers 24 and 26 are cut and removed.
尚、第６図において図中下側のフープ３０は、
雄型３４の形状等を分り易くするため、キヤリア
２４を切断除去した状態で図示している。 In addition, in FIG. 6, the hoop 30 on the lower side of the figure is
In order to make the shape of the male mold 34 easier to understand, the carrier 24 is shown in a state where it has been cut and removed.
ところが、上記雄型３４には、ベース２の内側
面部の形状に対応した凸部３４ｐが両側にあるた
め、ベース２を成形したのち雄型３４をフープ３
０に沿つて上方（第６図の紙面表方向）に抜こう
としても、この凸部３４ｐがフープ３０の上側の
キヤリア２４に当たるため雄型３４が抜けないと
いう問題が生じる。 However, since the male mold 34 has convex portions 34p on both sides corresponding to the shape of the inner side surface of the base 2, the male mold 34 is inserted into the hoop 3 after the base 2 is molded.
Even if an attempt is made to pull out the male die 34 upward along the line 0 (towards the surface of the paper in FIG. 6), the problem arises that the male die 34 cannot be pulled out because the protrusion 34p hits the carrier 24 above the hoop 30.
これに対しては、雄型３４を例えば２点鎖線で
示すように３４ａ〜３４ｃの三つ割れ構造にする
ことで対処するという考えも採れるが、そのよう
にすると雄型３４の構造が複雑になると共に成形
の精度も悪くなつてしまう。 One possible solution to this problem is to make the male die 34 have a three-part structure of 34a to 34c as shown by the two-dot chain line, but this would make the structure of the male die 34 complicated. At the same time, the precision of molding also deteriorates.
そこでこの発明は、雄型を分割構造にすること
なく上記のようなベース部のインサート成形を可
能にする方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a method that enables insert molding of the base portion as described above without dividing the male mold into a divided structure.
この発明の製造方法は、前述したようなフープ
として、その前記ベースの開口面側に位置するキ
ヤリアの内側面が前記ベースの内側面と同一面も
しくはそれよりも外側に位置するようにそれぞれ
曲げられた１組のフープを用いることを特徴とす
る。
The manufacturing method of the present invention is such that the hoop as described above is bent such that the inner surface of the carrier located on the opening surface side of the base is located on the same plane as the inner surface of the base or on the outside thereof. It is characterized by using one set of hoops.
上記構造のフープを用いることにより、その上
側のキヤリアとインサート成形用の雄型の凸部と
が機械的に干渉しなくなる。その結果、雄型の抜
き差しが自在となるので、雄型を分割構造にする
ことなく前記のようなベース部のインサート成形
が可能になる。
By using the hoop having the above structure, the carrier on the upper side thereof and the male protrusion for insert molding do not mechanically interfere with each other. As a result, the male mold can be inserted and removed freely, so that insert molding of the base portion as described above can be performed without having to divide the male mold into a separate structure.
前述した従来の方法との相違点を主に説明する
と、この実施例においては、前述したようなベー
ス部１をインサート成形で製造するに当たり、第
５図に示したような従来のフープ３０を用いる代
わりに、第１図に示すようなフープ４０を１組用
いる。
To mainly explain the difference from the conventional method described above, in this embodiment, when manufacturing the base portion 1 as described above by insert molding, a conventional hoop 30 as shown in FIG. 5 is used. Instead, a set of hoops 40 as shown in FIG. 1 is used.
各フープ４０は、第２図も参照して、その成形
しようとするベース２の開口面側に位置するキヤ
リア２４の内側面２４ｓが、当該ベース２の内側
面２ｓよりも外側に位置するようにそれぞれ曲げ
られている。ちなみにこのようなフープ４０は、
例えばプレス成形等によつて容易に作製すること
ができる。 Referring also to FIG. 2, each hoop 40 is made such that the inner surface 24s of the carrier 24 located on the opening surface side of the base 2 to be molded is located outside the inner surface 2s of the base 2. Each is bent. By the way, this kind of hoop 40 is
For example, it can be easily produced by press molding or the like.
第２図は上記のようなフープ４０を１組用いて
ベース部１をインサート成形する状態を示すが、
各フープ４０の上側のキヤリア２４は、その内側
面２４ｓが成形されるベース２の内側面２ｓ（こ
れは雄型３４の凸部３４ｐの外側面に相当する）
よりも外側に位置するため、このキヤリア２４と
前述したような雄型３４の凸部３４ｐとが機械的
に干渉しなくなる（即ち互いに当たらなくなる）。
その結果、雄型３４の抜き差しが自在となるの
で、雄型３４を前述したように分割構造にするこ
となく、ベース部１のインサート成形が可能にな
る。 FIG. 2 shows a state in which the base portion 1 is insert-molded using one set of hoops 40 as described above.
The carrier 24 on the upper side of each hoop 40 has an inner surface 2s on the inner surface 2s of the base 2 on which the inner surface 24s is molded (this corresponds to the outer surface of the protrusion 34p of the male die 34).
Since the carrier 24 and the protrusion 34p of the male die 34 as described above do not mechanically interfere with each other (that is, they do not come into contact with each other).
As a result, the male mold 34 can be inserted and removed freely, so that the base portion 1 can be insert-molded without having to divide the male mold 34 as described above.
従つて、雄型３４を分割構造にすることに伴う
問題、即ち雄型３４の構造が複雑になつたり成形
の精度が悪くなつたりするような問題は起こらな
い。 Therefore, problems associated with making the male die 34 have a split structure, such as the structure of the male die 34 becoming complicated and the precision of molding deteriorating, do not occur.
〔発明の効果
以上のようにこの発明によれば、小型スイツチ
のベース部であつて上面のみが開口した箱状のベ
ースの相対向する内側面部にそれぞれ複数の固定
接触子を当該内側面の上下方向に沿つて、しかも
各々の固定接触子の表面の少なくとも一部分がベ
ースの内側面よりも突き出るように設けた構造の
ものを、雄型を分割構造にすることなくインサー
ト成形で製造することが可能になり、その結果、
雄型を分割構造にすることに伴う問題、即ち雄型
の構造が複雑になつたり成形の精度が悪くなつた
りする問題が起こるのを避けることができる。[Effects of the Invention] As described above, according to the present invention, a plurality of fixed contacts are attached to the opposing inner side surfaces of the box-shaped base of the small switch, which is open only at the top. A structure in which at least a portion of the surface of each fixed contact protrudes beyond the inner surface of the base along the direction can be manufactured by insert molding without dividing the male mold. and as a result,
It is possible to avoid the problems associated with making the male mold into a split structure, that is, the structure of the male mold becomes complicated and the precision of molding deteriorates.
第１図Ａはこの発明の製造方法に用いるフープ
を示す正面図であり、同Ｂは同フープを組にして
示す側面図である。第２図は、第１図のフープを
用いてベース部をインサート成形する状態を示す
平面図である。第３図は、この発明の背景となる
小型スイツチの一例を示す一部切欠き正面図であ
る。第４図は、第３図の線−に沿う断面図で
ある。第５図Ａは従来のフープを示す正面図であ
り、同Ｂは同フープを組にして示す側面図であ
る。第６図は、第５図のフープを用いてベース部
をインサート成形する状態を示す平面図である。
１……ベース部、２……ベース、２ｓ……内側
面、８ａ〜８ｆ……固定接触子、２４，２６……
キヤリア、２４ｓ……内側面、２８……金属片、
４０……フープ。
FIG. 1A is a front view showing a hoop used in the manufacturing method of the present invention, and FIG. 1B is a side view showing the same hoop in a set. FIG. 2 is a plan view showing a state in which the base portion is insert-molded using the hoop shown in FIG. 1. FIG. 3 is a partially cutaway front view showing an example of a small switch which is the background of the present invention. FIG. 4 is a sectional view taken along line - in FIG. 3. FIG. 5A is a front view showing a conventional hoop, and FIG. 5B is a side view showing the same hoop in a set. FIG. 6 is a plan view showing a state in which the base portion is insert-molded using the hoop shown in FIG. 5. 1... Base portion, 2... Base, 2s... Inner surface, 8a to 8f... Fixed contact, 24, 26...
Carrier, 24s...inner surface, 28...metal piece,
40...Hoop.
Claims (1)
開口した箱状のベースの相対向する内側面部にそ
れぞれ複数の固定接触子を当該内側面の上下方向
に沿つて、しかも各々の固定接触子の表面の少な
くとも一部分がベースの内側面よりも突き出るよ
うに設けた構造のものを、前記固定接触子となる
複数の金属片を上下両側のキヤリアで連結した構
造のフープを１組用いて、それらを雌型と雄型間
に立てて装着した状態で両型間に絶縁樹脂を注入
して前記ベースを成形し、その後雄型をフープに
沿つて抜くという方法で製造するに当たり、前記
フープとして、その前記ベースの開口面側に位置
するキヤリアの内側面が前記ベースの内側面と同
一面もしくはそれよりも外側に位置するようにそ
れぞれ曲げられた１組のフープを用いることを特
徴とする小型スイツチのベース部の製造方法。1. A plurality of fixed contacts are installed along the vertical direction of the inner side surfaces of the box-shaped base of the small switch, which is open only at the top, and each of the fixed contacts At least a portion of the metal pieces protrudes beyond the inner surface of the base, and a pair of hoops are used to connect the plurality of metal pieces that serve as the fixed contacts with carriers on both the upper and lower sides. When manufacturing by a method of injecting an insulating resin between the molds and molding the base while standing upright between the mold and the male mold, and then cutting out the male mold along the hoop, the hoop is formed by the hoop. The base of a small switch characterized by using a pair of hoops each bent such that the inner surface of the carrier located on the opening surface side of the base is located on the same plane as the inner surface of the base or on the outside thereof. Manufacturing method of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33161587A JPH01173517A (en) | 1987-12-25 | 1987-12-25 | Manufacture of base section for small-sized switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33161587A JPH01173517A (en) | 1987-12-25 | 1987-12-25 | Manufacture of base section for small-sized switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01173517A JPH01173517A (en) | 1989-07-10 |
| JPH0584614B2 true JPH0584614B2 (en) | 1993-12-02 |
Family
ID=18245635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33161587A Granted JPH01173517A (en) | 1987-12-25 | 1987-12-25 | Manufacture of base section for small-sized switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01173517A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5738537B2 (en) * | 1978-08-21 | 1982-08-16 | ||
| JPS5814426A (en) * | 1981-07-16 | 1983-01-27 | オムロン株式会社 | Method of producing switch base |
| JPS6226715A (en) * | 1985-07-26 | 1987-02-04 | オムロン株式会社 | Manufacture of terminal base |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6140030Y2 (en) * | 1980-08-13 | 1986-11-15 |
-
1987
- 1987-12-25 JP JP33161587A patent/JPH01173517A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5738537B2 (en) * | 1978-08-21 | 1982-08-16 | ||
| JPS5814426A (en) * | 1981-07-16 | 1983-01-27 | オムロン株式会社 | Method of producing switch base |
| JPS6226715A (en) * | 1985-07-26 | 1987-02-04 | オムロン株式会社 | Manufacture of terminal base |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01173517A (en) | 1989-07-10 |
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