JPH0122191Y2 - - Google Patents
Info
- Publication number
- JPH0122191Y2 JPH0122191Y2 JP1981192882U JP19288281U JPH0122191Y2 JP H0122191 Y2 JPH0122191 Y2 JP H0122191Y2 JP 1981192882 U JP1981192882 U JP 1981192882U JP 19288281 U JP19288281 U JP 19288281U JP H0122191 Y2 JPH0122191 Y2 JP H0122191Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- housing
- groove
- ring
- base
- 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
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案はロータリスイツチの構造特にDIP型
（Dusl−In−Line Package）スイツチの密閉構
造に関するものである。[Detailed Description of the Invention] The present invention relates to the structure of a rotary switch, particularly the sealed structure of a DIP type (Dusl-In-Line Package) switch.
DIP型ロータリスイツチは電子機器、制御機器
等のプリント基板に装着する目的で開発されたも
のである。 DIP type rotary switches were developed for the purpose of mounting on printed circuit boards of electronic equipment, control equipment, etc.
従来のDIP型ロータリスイツチの一般的な構造
は、例えば第１図、第２図、第３図に図示の如く
であつて、電気絶縁材料からなるベース２に適当
な数の板状端子４を並列に取付け、板状端子４の
ベース２の上面より突出した部分を適当に折曲せ
しめて接点部６を形成せしめ、更にベースの下面
より垂下突出した端子の部分をリード部８とな
し、別にベース下面に用途に応じて適当なパター
ンの導電プリント１０が施されたロータデスク１
２を、ベース２の上面にロータ１４により圧接せ
しめて、ロータ上面に設けた突出部２１に穿設し
たスリツト２２にドライバ等を挿入してロータ１
４を適宜の方向に回動させることにより、前記ロ
ータデスク１２を回動させて、その導電プリント
１０を前記板状端子の適宜な接点部６に接触した
り、接触を解除して前記板状端子４の間に通電、
不通電を実施できるようなしたものである。然し
て第２図に図示の如く、ロータ１４の突出部２１
はハウジング１６に穿設した孔部１５に嵌挿され
て、ロータ１４はハウジング１６内に収容され
る。 The general structure of a conventional DIP type rotary switch is, for example, as shown in FIGS. 1, 2, and 3, in which an appropriate number of plate terminals 4 are mounted on a base 2 made of an electrically insulating material. They are attached in parallel, and the parts of the plate-shaped terminals 4 that protrude from the upper surface of the base 2 are appropriately bent to form the contact portions 6, and the parts of the terminals that hang down and protrude from the lower surface of the base are used as the lead portions 8. A rotor desk 1 with a conductive print 10 of an appropriate pattern on the bottom surface of the base according to the purpose.
2 is pressed into contact with the upper surface of the base 2 by the rotor 14, and a driver or the like is inserted into the slit 22 formed in the protrusion 21 provided on the upper surface of the rotor.
4 in an appropriate direction, the rotor disk 12 is rotated to bring the conductive print 10 into contact with an appropriate contact portion 6 of the plate-shaped terminal, or to release the contact with the appropriate contact portion 6 of the plate-shaped terminal. energize between terminal 4,
It is designed so that power can be cut off. However, as shown in FIG.
is fitted into a hole 15 formed in the housing 16, and the rotor 14 is housed within the housing 16.
尚又ロータ１４の突出部２１の外周に断面コ字
状の溝１８を設け、この溝内にＯリング２０を嵌
挿してなり、ロータ１４の側面には先端に湾曲丘
状部２６を具えた一対のばね部２８が存在し、こ
のばね部はロータと共に回動して、その先端湾曲
丘状部２６がハウジング１６内部に形成した複数
の段部３０に接触しつゝ、ばね部２８は段階的に
移動し、ロータ１４の所定位置での停止を確保す
る。 Furthermore, a groove 18 having a U-shaped cross section is provided on the outer periphery of the protruding portion 21 of the rotor 14, and an O-ring 20 is inserted into this groove, and the side surface of the rotor 14 is provided with a curved hill-shaped portion 26 at the tip. A pair of spring portions 28 are present, and the spring portions rotate together with the rotor so that the tip curved hill portion 26 contacts a plurality of steps 30 formed inside the housing 16. to ensure that the rotor 14 stops at a predetermined position.
この種のDIP型スイツチはプリント基板に搭載
するもので、その際にハンダ付けを行うので、フ
ラツクスの浸入又はフラツクス洗浄における洗浄
液の浸入等により接点との接触関係に障害が生じ
ることがある。又ロータ１４内に外部より異物が
侵入することがある。そこでこれらの障害防止の
ために前述の如くロータ１４とハウジング１６と
の間をシールするために、通常シリコンゴム等に
よりなるＯリング２０をロータ１４の突出部２１
の外周に設けた凹溝１８に圧入する。ハウジング
１６内に順次にロータ１４、ロータデスク１２並
にベース２を組付けた状態つまりロータリスイツ
チが組立でられた場合には、ハウジング１６の内
側面はロータ１４に穿設した凹溝１８内に収容さ
れたＯリング２０を上方より押圧するので、Ｏリ
ング２０は、第２図に図示の如く、上、下方向よ
りの力Ｆ，Ｆをうけて、水平横方向に押圧され
やゝ偏平形状となる。つまり、Ｏリング２０の径
φはロータ１４に設けたＯリング用凹溝１８の深
さｄよりも大であり、この溝の巾ｗよりも小さく
設計されているので、前記の如くロータリスイツ
チが組立てられた場合、径φを具えたＯリング２
０は深さｄの寸法まで押しつぶされて、円形リン
グが外向に変形をなして、凹溝の巾ｗ以内で凹溝
１８内に収容される。然して、ロータリスイツチ
の密閉性とロータ１４の回転トルクは、Ｏリング
２０の変形状態如何により、微妙な影響をうけ
る。 This type of DIP type switch is mounted on a printed circuit board and is soldered at that time, so problems may occur in the contact relationship with the contacts due to infiltration of flux or infiltration of cleaning liquid during flux cleaning. Further, foreign matter may enter the rotor 14 from the outside. Therefore, in order to prevent these troubles and seal between the rotor 14 and the housing 16 as described above, an O-ring 20 usually made of silicone rubber or the like is attached to the protrusion 21 of the rotor 14.
Press fit into the concave groove 18 provided on the outer periphery. When the rotor 14, rotor desk 12, and base 2 are sequentially assembled into the housing 16, that is, when the rotary switch is assembled, the inner surface of the housing 16 is inserted into the groove 18 formed in the rotor 14. Since the accommodated O-ring 20 is pressed from above, the O-ring 20 receives forces F and F from above and below, as shown in FIG. 2, and is pushed horizontally and into a flat shape. becomes. In other words, the diameter φ of the O-ring 20 is larger than the depth d of the O-ring groove 18 provided in the rotor 14, and is designed to be smaller than the width w of this groove. When assembled, O-ring 2 with diameter φ
0 is crushed to a depth d, and the circular ring is deformed outward and accommodated in the groove 18 within the width w of the groove. However, the sealing performance of the rotary switch and the rotational torque of the rotor 14 are delicately affected by the deformation state of the O-ring 20.
例えば、ハウジング１６の内側の深さＤ（第２
図）が深か過ぎた為ハウジング内に組付けられた
ロータ１４、ロータリデスク１２、ベース２等と
の密着が不充分であつたり、又組立て後にハウジ
ング１４とベース２との超音波等による溶着が甘
かつたりすると、Ｏリングを含む関係部材の密閉
性に不具合が生じ、又前記と反対に、ハウジング
１６の内側の深さが浅かつたり又はハウジング１
４とベース２との溶着が強すぎたりすると、Ｏリ
ング２０は過度に横方向に変形するからロータ１
４の回転トルクが大きくなりロータ１４のスリツ
ト２２にドライバ等を挿入してロータを回転し
て、スイツチの切換える際のばね部材２８と段部
３０との接触によるクリツク感が悪くなる。更
に、Ｏリング２０の径φが大きすぎた場合には、
Ｏリングはロータ１４とハウジング１６との間に
挾まれて、回転トルクが異常に大きくなる等の
種々な欠陥が発生する。 For example, the inner depth D of the housing 16 (the second
(Fig.) is too deep, the adhesion to the rotor 14, rotary desk 12, base 2, etc. assembled in the housing may be insufficient, or the housing 14 and base 2 may be welded together by ultrasonic waves after assembly. If it is too loose, problems will occur in the sealing performance of related members including the O-ring, and conversely, if the inside depth of the housing 16 is shallow or the housing 1
If the welding between the rotor 1 and the base 2 is too strong, the O-ring 20 will deform excessively in the lateral direction.
4 increases, a driver or the like is inserted into the slit 22 of the rotor 14 to rotate the rotor, and the click feeling caused by the contact between the spring member 28 and the stepped portion 30 when switching the switch becomes worse. Furthermore, if the diameter φ of the O-ring 20 is too large,
The O-ring is caught between the rotor 14 and the housing 16, causing various defects such as an abnormally large rotational torque.
本考案は上記の欠陥を克服するために工夫され
たもので、その一実施例を第６図において図示す
る。ロータ１４に穿設したロータ溝２４に臨むハ
ウジング１６の孔部はその垂直内側面に連設した
水平部Ｈとテーパ部Ｔとで構成されてなるハウジ
ング溝１５′であり、このハウジング溝１５′の巾
よりもロータ溝２４の巾を大きく形成する。又ハ
ウジング溝１５′の水平部Ｈと直角をなす垂線と
テーパ部Ｔとで形成する角度を鋭角となすもので
ある。 The present invention has been devised to overcome the above-mentioned deficiencies, and one embodiment thereof is illustrated in FIG. The hole in the housing 16 facing the rotor groove 24 bored in the rotor 14 is a housing groove 15' which is composed of a horizontal part H and a tapered part T continuous to the vertical inner surface of the housing 16. The width of the rotor groove 24 is formed to be larger than the width of the rotor groove 24. Further, the angle formed by the tapered portion T and a perpendicular line perpendicular to the horizontal portion H of the housing groove 15' is an acute angle.
Ｏリング２０を前記ロータ溝２４内に挿入して
上方より前記ハウジング溝１５で押圧して関係部
材を組付ければ、第６図の矢印F1にて指す方向
にＯリング２０は斜めに押圧され、同時矢印F2
にて指す水平方向にも押圧され、前記F1とF2方
向の押圧力が互に作用し、Ｏリング２０の形状
は、従来例における横方向に押しつぶされる代り
に、やゝ縦長方向に変形される。すなわち第６図
に図示するロータ溝の巾w′の範囲内で押しつぶ
されて深さd′の寸法まで変形する。従つて従来例
のＯリングの摩擦面は主として上下方向に存在す
るのに対し、本考案のＯリングの摩擦面は主とし
て横方向に存在し、前記の如くテーパ部の形成す
る角度が鋭角であるためＯリング２０は深さ方向
への変動が小さく、長さ方向へ縦長に形成され
る。従つて従来の如きハウジング１６の内側の深
さの浅深に起因する不具合やハウジングとベース
との超音波による溶着の出来不出来に起因するロ
ータの回転トルクの不具合等は克服されるのでロ
ータリスイツチの構造上の密閉性とロータの回転
トルクの軽快且つ安定性が得られるものである。 When the O-ring 20 is inserted into the rotor groove 24 and pressed from above by the housing groove 15 to assemble related members, the O-ring 20 is pressed diagonally in the direction indicated by arrow F1 in FIG. , simultaneous arrow F 2
The O-ring 20 is also pressed in the horizontal direction indicated by , and the pressing forces in the F 1 and F 2 directions interact, and the shape of the O-ring 20 is slightly deformed in the vertical direction instead of being crushed in the horizontal direction as in the conventional example. be done. That is, it is crushed and deformed to a depth d' within the width w' of the rotor groove shown in FIG. Therefore, while the friction surface of the O-ring of the conventional example exists mainly in the vertical direction, the friction surface of the O-ring of the present invention exists mainly in the lateral direction, and as described above, the angle formed by the tapered part is an acute angle. Therefore, the O-ring 20 has a small variation in the depth direction and is formed vertically in the length direction. Therefore, problems caused by the shallow inner depth of the housing 16 and problems with the rotational torque of the rotor caused by failure of ultrasonic welding between the housing and the base, etc., as in the prior art, can be overcome. This provides structural sealing and light and stable rotational torque of the rotor.
尚、添付図面第７図は、本考案のも一つの実施
例を図示するもので、ロータ１４の突出部２１の
外側に設けた凹溝２４を欠くものであり、ハウジ
ング内側にはロータ１４の上面に相対する如く、
水平部Ｈとテーパ部Ｔを設けたものであり、その
原理は既に説明した実施例と同様である。 FIG. 7 of the accompanying drawings shows another embodiment of the present invention, in which the groove 24 provided on the outside of the protrusion 21 of the rotor 14 is missing, and the rotor 14 is provided inside the housing. As opposed to the top,
A horizontal portion H and a tapered portion T are provided, and the principle is the same as that of the previously described embodiment.
第１図は従来例のロータリスイツチの一部切欠
平面図。第２図は第１図の−の線にそつた断
面図。第３図はロータリスイツチのベースの側面
図。第４図はＯリングの平面図。第５図はロータ
デスクの平面図。第６図は本考案の一実施例を示
すもので第２図に対応する断面図。第７図はも一
つの実施例を示すテーパ溝の拡大断面図。
Ｈはテーパ溝の水平部、Ｔはテーパ溝のテーパ
部、２はベース、６は接点部、８は端子リード
部、１２はロータデスク、１４はロータ、１６は
ハウジング、２０はＯリング、２４はロータ溝。
FIG. 1 is a partially cutaway plan view of a conventional rotary switch. FIG. 2 is a sectional view taken along the - line in FIG. 1. Figure 3 is a side view of the base of the rotary switch. FIG. 4 is a plan view of the O-ring. Figure 5 is a plan view of the rotor desk. FIG. 6 shows an embodiment of the present invention, and is a sectional view corresponding to FIG. 2. FIG. 7 is an enlarged sectional view of a tapered groove showing another embodiment. H is the horizontal part of the tapered groove, T is the tapered part of the tapered groove, 2 is the base, 6 is the contact part, 8 is the terminal lead part, 12 is the rotor desk, 14 is the rotor, 16 is the housing, 20 is the O-ring, 24 is the rotor groove.
Claims (1)
と共に回転可能なロータデスクを収容し、前記ロ
ータデスクに接触可能な接点をハウジングベース
に設けたロータリスイツチにおいて、ロータ外周
に対面する垂直部とこれに連設形成した水平部と
この水平部と鋭角をなすように連設形成したテー
パ部とを具えた溝をハウジング内側に形成し、前
記ハウジング溝と対面するように前記溝よりも広
巾の浅い凹溝をロータ上面に穿設し、これらの溝
の間にＯリングを圧着収容してなるロータリスイ
ツチの構造。 In a rotary switch, a rotatable rotor and a rotor disk rotatable together with the rotor are accommodated in a hole in a housing, and a housing base is provided with a contact point capable of contacting the rotor disk. A groove is formed inside the housing, the groove having a horizontal part continuous to the housing and a tapered part continuous to form an acute angle with the horizontal part. A rotary switch structure in which grooves are formed on the upper surface of the rotor, and an O-ring is press-fitted between these grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19288281U JPS5898734U (en) | 1981-12-26 | 1981-12-26 | Structure of rotary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19288281U JPS5898734U (en) | 1981-12-26 | 1981-12-26 | Structure of rotary switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5898734U JPS5898734U (en) | 1983-07-05 |
| JPH0122191Y2 true JPH0122191Y2 (en) | 1989-06-30 |
Family
ID=30106265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19288281U Granted JPS5898734U (en) | 1981-12-26 | 1981-12-26 | Structure of rotary switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5898734U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650930Y2 (en) * | 1986-09-11 | 1994-12-21 | オムロン株式会社 | Adjustment mechanism for small electric devices |
| JP2009054332A (en) * | 2007-08-24 | 2009-03-12 | Nok Corp | Sealing structure for portable electronic equipment |
-
1981
- 1981-12-26 JP JP19288281U patent/JPS5898734U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5898734U (en) | 1983-07-05 |
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