JPH0313947Y2 - - Google Patents
Info
- Publication number
- JPH0313947Y2 JPH0313947Y2 JP1986016077U JP1607786U JPH0313947Y2 JP H0313947 Y2 JPH0313947 Y2 JP H0313947Y2 JP 1986016077 U JP1986016077 U JP 1986016077U JP 1607786 U JP1607786 U JP 1607786U JP H0313947 Y2 JPH0313947 Y2 JP H0313947Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- rotating drum
- contact
- circumferential surface
- metal
- 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
Links
- 239000002184 metal Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009499 grossing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、回転ドラム型のロータリースイツチ
に係り、特に、接触子の摩耗の少ない平滑化パタ
ーンをもち、且つ、回転ドラムの外形形状精度の
高い小型のロータリースイツチに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotating drum type rotary switch, and in particular, the present invention has a smoothing pattern that causes less wear on the contacts, and improves the external shape accuracy of the rotating drum. Concerning an expensive small rotary switch.
回転ドラム型のロータリースイツチは、径方向
の寸法を切り詰めることが容易に可能で、最近で
は直径10mm以下の回転ドラムをもつスイツチで、
且つ長寿命の製品が求められつつある。斯る要請
は、車載用機器に組込まれる製品において特に大
きく、100万回転程度の製品寿命をもち、且つ、
超小型のスイツチが要求される。
It is easy to reduce the radial dimension of rotating drum type rotary switches, and recently, switches with rotating drums of 10 mm or less in diameter are
In addition, there is a growing demand for products with long lifespans. Such requirements are particularly important for products that are incorporated into in-vehicle equipment, with product lifespans of around 1 million revolutions, and
An ultra-compact switch is required.
ところが、従来の回転ドラム型のスイツチは、
絶縁性合成樹脂から形成した絶縁ドラムの外表面
に、導電ペーストを印刷して接点パターンを形成
したものであるため、成形時の「ヒケ」等の影響
で、絶縁ドラムの外周全体の円筒精度を維持する
ことが困難であること、並びに、接点パターンと
絶縁ドラムの外周面との間に段差があることか
ら、接触信頼性に問題があり、経時使用において
接触子が摩耗して製品寿命を短かくする等の問題
があつた。 However, the conventional rotating drum type switch
Since the contact pattern is formed by printing conductive paste on the outer surface of the insulating drum made of insulating synthetic resin, the cylindrical accuracy of the entire outer periphery of the insulating drum may be affected by "sink marks" during molding. Because it is difficult to maintain, and there is a step between the contact pattern and the outer circumferential surface of the insulating drum, there are problems with contact reliability, and the contacts wear out over time, shortening the product life. There were problems such as this.
一方、上述の接点パターンと絶縁部との間の段
差をなくして、接点の長寿命を保証する所謂「平
滑化回路板」は公知であるが、これは回転円板型
のロータリースイツチに用いられているものであ
り、これ等平滑化回転板を作成するための転写
法、或いはダイスタンプ法は、円筒形成には不向
きで、製造上の問題から回転ドラム型スイツチに
は実質上適用困難なものである。 On the other hand, a so-called "smoothing circuit board" that eliminates the level difference between the contact pattern and the insulation part mentioned above to ensure a long life of the contacts is well known, but this is used in rotating disk type rotary switches. These transfer methods or die stamping methods for creating smoothed rotating plates are not suitable for forming cylinders, and are practically difficult to apply to rotating drum type switches due to manufacturing problems. It is.
従つて本考案の解決すべき技術的課題は、上記
従来技術のもつ問題の解消にあり、以つて本考案
の目的とするところは、平滑化パターンの形成が
容易で、且つ外形寸法精度の高い回転ドラムをも
つ、長期に亘つて接触信頼性の高いロータリース
イツチを提供するにある。
Therefore, the technical problem to be solved by the present invention is to solve the problems of the above-mentioned prior art, and the purpose of the present invention is to easily form a smoothed pattern and to have high external dimensional accuracy. To provide a rotary switch having a rotating drum and having high contact reliability over a long period of time.
本考案の上記した目的は、回転自在に保持され
その外周面に接点パターンを形成した回転ドラム
と、該回転ドラムの外周面に弾接される接触子と
を備えた構成において、前記回転ドラムは、その
周面に複数の透窓を穿設した金属円筒体と、該金
属円筒体の内周面にアウトサート成形によつて一
体に固着された絶縁性合成樹脂からなる保持体を
具備し、前記透窓には、前記絶縁性合成樹脂が前
記金属円筒体の外表面と面一になるように充填さ
れて、前記接触子と摺接する絶縁パターンを形成
してなるロータリースイツチによつて概略達成さ
れる。
The above-mentioned object of the present invention is to provide a structure including a rotating drum that is rotatably held and has a contact pattern formed on its outer circumferential surface, and a contact element that comes into elastic contact with the outer circumferential surface of the rotating drum. , comprising a metal cylindrical body with a plurality of transparent windows perforated on its circumferential surface, and a holder made of an insulating synthetic resin integrally fixed to the inner circumferential surface of the metal cylindrical body by outsert molding, The transparent window is filled with the insulating synthetic resin so as to be flush with the outer surface of the metal cylindrical body, thereby forming an insulating pattern that comes into sliding contact with the contact. be done.
以下本考案を第１図〜第３図に示した１実施例
によつて説明する。第１図は、一部を切断した要
部正面図、第２図は同要部断面平面図、第３図
ａ，ｂ，ｃは回転ドラムの製造過程を示す説明図
である。
The present invention will be explained below with reference to an embodiment shown in FIGS. 1 to 3. FIG. 1 is a partially cutaway front view of the main part, FIG. 2 is a sectional plan view of the main part, and FIGS. 3a, b, and c are explanatory views showing the manufacturing process of the rotating drum.
図において、１は回転ドラムで、該回転ドラム
１は、金属円筒体２と、絶縁性合成樹脂からなる
保持体３とから成つている。上記金属円筒体２
は、必要に応じ貴金属メツキ等を施こした薄肉の
良導電性金属からなり、該実施例においては、パ
ラジウムメツキを施こした直径７mm、肉厚0.2〜
0.3mmのリン青銅管を用いている。この金属円筒
体２は、例えば引抜き（或いは押出し）加工によ
つて形成された長尺パイプを所望長さに切断する
ことによつて得られるもので（第３図ａ）、容易
に入手可能であると共に、プラスチツクス成形品
に比して真円度並びに外形寸法精度は一段と優れ
たものとなつている。 In the figure, 1 is a rotating drum, and the rotating drum 1 is composed of a metal cylindrical body 2 and a holder 3 made of an insulating synthetic resin. The metal cylindrical body 2
is made of thin-walled, highly conductive metal plated with precious metal as required. In this example, the plate is plated with palladium, has a diameter of 7 mm, and has a wall thickness of 0.2 to 0.2 mm.
0.3mm phosphor bronze tube is used. This metal cylindrical body 2 is obtained, for example, by cutting a long pipe formed by drawing (or extrusion) into a desired length (Fig. 3a), and is easily available. At the same time, the roundness and external dimensional accuracy are much better than plastic molded products.
上記金属円筒体２の周面には、複数個の角形の
透窓４…が穿設されており（第３図ｂ）、後述す
る絶縁パターンを形成するための絶縁性合成樹脂
の充填部となつている。この透窓４は、機械的加
工、或いは化学エツチング等の手段によつて形成
されるが、機械的加工、特にプレス打抜き加工を
適用すると量産性に富む。勿論、プレス打抜き加
工等を行なう場合、金属円筒体２の真円度、円筒
外形精度を損なわぬように、金属円筒体２の内部
には丸棒体等を挿入する等の配慮が施こされる。 A plurality of rectangular transparent windows 4 are bored on the circumferential surface of the metal cylinder 2 (see Fig. 3b), and are filled with an insulating synthetic resin to form an insulating pattern to be described later. It's summery. This transparent window 4 is formed by means such as mechanical processing or chemical etching, but if mechanical processing, particularly press punching, is applied, mass production is possible. Of course, when performing press punching etc., consideration is given to inserting a round bar etc. into the inside of the metal cylindrical body 2 so as not to impair the roundness of the metal cylindrical body 2 and the accuracy of the cylindrical external shape. Ru.
前記保持体３は、アウトサート成形によつて前
記金属円筒体２の内周面に固着・一体化されて、
略円筒状を呈すと共に、前記透窓４に金属円筒体
２の外表面と面一になるように充填されて、絶縁
パターン５…を形作つている（第３図ｃ）。即ち、
金属円筒体２の外表（周）面自身が後述する接触
子と摺接する導電パターンとなり、この導電パタ
ーンと上記絶縁パターン５とが面一となつて、所
謂平滑化パターンが形成されている。このため、
保持体３となる絶縁性合成樹脂は適度の硬さと表
面の摺動性の良さをもつプラスチツクスが選定さ
れ、該実施例においてはナイロン６−６が用いら
れている。なお、第３図ｃにおいて、６は回転ド
ラム１（保持体３）の中心孔である。 The holding body 3 is fixed and integrated with the inner peripheral surface of the metal cylindrical body 2 by outsert molding,
It has a substantially cylindrical shape, and is filled in the transparent window 4 so as to be flush with the outer surface of the metal cylinder 2, forming an insulating pattern 5 (FIG. 3c). That is,
The outer (circumferential) surface of the metal cylinder 2 itself becomes a conductive pattern that comes into sliding contact with a contactor to be described later, and this conductive pattern and the insulating pattern 5 are flush with each other to form a so-called smoothing pattern. For this reason,
As the insulating synthetic resin for the holder 3, a plastic having appropriate hardness and good surface sliding properties is selected, and in this embodiment, nylon 6-6 is used. In addition, in FIG. 3c, 6 is the center hole of the rotating drum 1 (holding body 3).
上述した如く形成された回転ドラム１は、例え
ば第１，２図示のようにして用いられる。同図に
おいて、７はケース体、８は、該ケース体７に軸
受９を介して回転自在に保持された回転軸で、前
記回転ドラム１を嵌挿して、両者１，８は一体に
回転するようになつている。また、上記回転軸８
は、減速歯車機構をなすギヤ列１０を介して、モ
ータ１１の出力軸に連結され、モータ１１と同期
回転するようになつている。１２は、ケース体７
に固着されたスペーサ体で、該スペーサ体には絶
縁性合成樹脂よりなる接触子取付体１３が植設・
固定されている。 The rotating drum 1 formed as described above is used, for example, as shown in the first and second figures. In the figure, 7 is a case body, 8 is a rotating shaft rotatably held in the case body 7 via a bearing 9, and the rotating drum 1 is inserted into the rotating shaft, so that both 1 and 8 rotate together. It's becoming like that. In addition, the rotating shaft 8
is connected to the output shaft of a motor 11 via a gear train 10 forming a reduction gear mechanism, and rotates synchronously with the motor 11. 12 is the case body 7
A spacer body is fixed to the spacer body, and a contact mounting body 13 made of insulating synthetic resin is embedded in the spacer body.
Fixed.
１４…は、上記接触子取付体１３にその一部を
埋設・固定された接触子で、先端部に前記回転ド
ラム１と弾接する突状の接点部１４ａ（第２図）
をもつ２本のアーム部１４ｂ（第１図）をそれぞ
れ備えていて、弾性ある良導電性金属薄板、例え
ばバネリン青銅より形成されていて、必要に応じ
接点部１４ａにAu等を部分メツキしてある。１
５（第２図）は、上記各接触子１４と半田１６付
けで接続されたフレキシブルプリント基板で、該
フレキシブルプリント基板１５は、前記ケース体
７の図示せぬ切欠きから外部に導出され、外部回
路と接続されている。 14 is a contact whose part is embedded and fixed in the contact mounting body 13, and has a protruding contact portion 14a (FIG. 2) that makes elastic contact with the rotating drum 1 at the tip end thereof.
The arm portions 14b (FIG. 1) each have two arm portions 14b (FIG. 1), each made of an elastic and highly conductive metal thin plate, such as springlin bronze, and the contact portions 14a may be partially plated with Au or the like as required. be. 1
5 (FIG. 2) is a flexible printed circuit board connected to each contact 14 by soldering 16. The flexible printed circuit board 15 is led out from a notch (not shown) in the case body 7, and is connected to the outside. connected to the circuit.
そして該実施例においては、前記４つの接触子
１４のうちの一つ（例えば第１図で最下側のも
の）が、前記回転ドラム１の導電パターン（金属
円筒体２の外表面）に常時（全回転範囲におい
て）接触するコモン端子とされ、他の３つの接触
子１４が、回転ドラム１の回転に従つて導電パタ
ーン並びに絶縁パターン５と選択的に接触する出
力端子として構成されている。よつて、前記モー
タ１１の回転に伴つて回転ドラム１が回転し、こ
れに従つて上述した各出力端子たる接触子１４か
ら、これが絶縁パターン５と摺接する毎にパルス
信号が送出されることになり、例えば、モータ１
１の相検出（回転位置検出）がなされるようにな
つている。そして、このように構成された回転ド
ラム型のロータリースイツチは、回転ドラム１の
外形精度が良好なこと並びに平滑化パターンであ
ることが相俟つて、接点摩耗の少ない、長期に亘
つて接触信頼性の良好な製品となり、100万回転
以上の寿命が保証される。 In this embodiment, one of the four contacts 14 (for example, the one at the bottom in FIG. 1) is always connected to the conductive pattern of the rotating drum 1 (the outer surface of the metal cylinder 2). It is configured as a common terminal that contacts (over the entire rotation range), and the other three contacts 14 are configured as output terminals that selectively contact the conductive pattern and the insulating pattern 5 as the rotating drum 1 rotates. Therefore, as the motor 11 rotates, the rotary drum 1 rotates, and accordingly, pulse signals are sent out from the contacts 14, which are each of the output terminals, each time they come into sliding contact with the insulation pattern 5. For example, motor 1
One phase detection (rotational position detection) is performed. The rotary drum type rotary switch constructed in this way has good external precision of the rotary drum 1 and smooth pattern, which together result in low contact wear and long-term contact reliability. It is a good product and has a guaranteed lifespan of over 1 million revolutions.
以上詳述したように本考案によれば、金属円筒
体の内周面にアウトサート成形によつて形成・一
体化した絶縁性合成樹脂よりなる保持体の一部
を、金属円筒体の透窓に充填して該金属円筒体の
外表面と面一の絶縁パターンとしているので、平
滑化パターンの形成が至つて簡単で、且つ、金属
円筒体はその外形精度が良好なので回転ドラム全
体の外形精度も良く、従つて、長期に亘つて接触
信頼性の高いドラム型のロータリースイツチを生
産性良く提供でき、その実用的価値は極めて多大
である。
As detailed above, according to the present invention, a part of the holding body made of insulating synthetic resin formed and integrated on the inner peripheral surface of the metal cylinder by outsert molding is inserted into the transparent window of the metal cylinder. Since the insulation pattern is flush with the outer surface of the metal cylindrical body, it is very easy to form a smoothing pattern, and since the metal cylindrical body has good external accuracy, the external accuracy of the entire rotating drum can be improved. Therefore, it is possible to provide a drum-type rotary switch with high contact reliability over a long period of time with good productivity, and its practical value is extremely large.
図面は何れも本考案の１実施例に係り、第１図
は一部を切断した要部正面図、第２図は同要部断
面平面図、第３図ａ，ｂ，ｃは回転ドラムの製造
過程を示す説明図である。
１……回転ドラム、２……金属円筒体、３……
保持体、４……透窓、５……絶縁パターン、８…
…回転軸、１４……接触子。
The drawings all relate to one embodiment of the present invention, and Fig. 1 is a partially cutaway front view of the main part, Fig. 2 is a sectional plan view of the main part, and Fig. 3 a, b, and c are views of the rotating drum. It is an explanatory diagram showing a manufacturing process. 1... Rotating drum, 2... Metal cylindrical body, 3...
Holding body, 4... Transparent window, 5... Insulating pattern, 8...
...rotating shaft, 14...contact.
Claims (1)
成し、複数の接触子をドラム外周面に弾接させ、
ドラムの回転に従つて、接点と接触子の接／断を
おこなわせる回転ドラム型ロータリースイツチに
おいて、 回転ドラムは、 引き抜き加工された金属パイプを所望長さに切
断した円筒体であつて、その内部に丸棒体を挿入
した状態でプレス打ち抜き加工をおこなつて複数
の透窓を穿設することにより、外周面に接点パタ
ーンを形成した金属円筒体と、 金属円筒体の内周面側に、アウトサート成形に
よつて前記透窓に前記金属円筒体の外周面と面一
になるよう充填され、金属円筒体と一体に固着さ
れた絶縁性合成樹脂からなる保持体と、 保持体に貫通挿入された回転軸と、 からなることを特徴とする、回転ドラム型ロータ
リースイツチ。[Claims for Utility Model Registration] A plurality of contact patterns are formed on the outer circumferential surface of a rotating drum, and a plurality of contacts are brought into elastic contact with the outer circumferential surface of the drum,
In a rotating drum-type rotary switch that connects/disconnects contacts as the drum rotates, the rotating drum is a cylindrical body made of a drawn metal pipe cut to a desired length. A metal cylindrical body with a contact pattern formed on its outer circumferential surface by punching a round rod into the body and punching out multiple transparent windows, and a metal cylindrical body with a contact pattern formed on the inner circumferential surface of the metal cylinder. A holder made of an insulating synthetic resin that is filled into the transparent window by outsert molding so as to be flush with the outer peripheral surface of the metal cylindrical body and is integrally fixed to the metal cylindrical body; and a holder made of an insulating synthetic resin that is inserted through the holder. A rotating drum-type rotary switch characterized by a rotary shaft and a rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986016077U JPH0313947Y2 (en) | 1986-02-06 | 1986-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986016077U JPH0313947Y2 (en) | 1986-02-06 | 1986-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62127623U JPS62127623U (en) | 1987-08-13 |
| JPH0313947Y2 true JPH0313947Y2 (en) | 1991-03-28 |
Family
ID=30807606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986016077U Expired JPH0313947Y2 (en) | 1986-02-06 | 1986-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0313947Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5995540U (en) * | 1982-12-17 | 1984-06-28 | ホシデン株式会社 | Rotating body of rotary encoder |
-
1986
- 1986-02-06 JP JP1986016077U patent/JPH0313947Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62127623U (en) | 1987-08-13 |
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