JPH0248124B2 - KAITENSOSASHIKIKOGATADENSHIBUHIN - Google Patents
KAITENSOSASHIKIKOGATADENSHIBUHINInfo
- Publication number
- JPH0248124B2 JPH0248124B2 JP5678385A JP5678385A JPH0248124B2 JP H0248124 B2 JPH0248124 B2 JP H0248124B2 JP 5678385 A JP5678385 A JP 5678385A JP 5678385 A JP5678385 A JP 5678385A JP H0248124 B2 JPH0248124 B2 JP H0248124B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- stopper
- printed circuit
- circuit board
- metal plate
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 description 18
- 239000000758 substrate Substances 0.000 description 11
- 238000005476 soldering Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Adjustable Resistors (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は映像機器、音響機器等の各種電子機器
に使用され、プリント基板に取付けられ小形の可
変抵抗器、スイツチ等の回転操作式電子部品に関
するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to rotary-operable electronic components such as small variable resistors and switches that are attached to printed circuit boards and are used in various electronic devices such as video equipment and audio equipment. It is.
従来例の構成と問題点
以下従来の回転操作式小形可変抵抗器を説明す
る。Configuration and Problems of Conventional Example A conventional rotary-operated small variable resistor will be explained below.
第１図および第２図は従来のプリント基板取付
用の回転操作式小形連動可変抵抗器の分解斜視図
および組立断面図であり、図において、１は合成
樹脂等から成る円筒形ケースで、その下端および
上端には絶縁基板２および２′が保持金具３の脚
部４により固定されている。そして、絶縁基板２
および２′の内側表面には第３図に示す如く、固
定接点としての円形抵抗素子５，５′および円形
導体６，６′が印刷等により形成され、抵抗素子
５，５′の両端部および円形導体６，６′からは
夫々接続端子７，７′，８，８′および９，９′が
めにより取付けられプリント基板１０の孔に挿
入接続される様下方に折曲げされている。また、
保持金具からもプリント基板１０に対する取付脚
１１，１１′が出されている。 Figures 1 and 2 are an exploded perspective view and an assembled sectional view of a conventional rotary-operated small interlocking variable resistor for mounting on a printed circuit board. In the figures, 1 is a cylindrical case made of synthetic resin, etc.; Insulating substrates 2 and 2' are fixed to the lower and upper ends by legs 4 of holding fittings 3. Then, the insulating substrate 2
As shown in FIG. 3, circular resistance elements 5, 5' and circular conductors 6, 6' as fixed contacts are formed by printing or the like on the inner surfaces of the resistance elements 5, 5' and 2'. Connecting terminals 7, 7', 8, 8', and 9, 9' are attached to the circular conductors 6, 6' by hooks, respectively, and are bent downward so as to be inserted into holes in the printed circuit board 10. Also,
Mounting legs 11 and 11' for the printed circuit board 10 are also protruded from the holding fitting.
更に、円筒形ケース１の内部には弾性金属板製
摺動接点（可動接点）１２，１２′を上下に保持
した絶縁材料製回転体１３が、下側及び上側の絶
縁基板２及び２′の中央孔１４及び１５により回
転可能に保持されており、この回転体１３には上
側基板２′の中央孔１５から外部に突出した操作
軸部１６および半径方向に突出したストツパー用
突起１７が一体に形成されている。そして、この
ストツパー用突起１７が円筒形ケース１の内周か
ら内側に突出した突部１８に当接することにより
回転体１３の回転角度が規制されている。 Furthermore, inside the cylindrical case 1, there is a rotary body 13 made of an insulating material that holds sliding contacts (movable contacts) 12, 12' made of elastic metal plates in the upper and lower parts. The rotating body 13 is rotatably held by central holes 14 and 15, and an operating shaft portion 16 projecting outward from the central hole 15 of the upper substrate 2' and a stopper protrusion 17 projecting in the radial direction are integrated into the rotating body 13. It is formed. The rotation angle of the rotating body 13 is regulated by the stopper projection 17 coming into contact with a projection 18 projecting inward from the inner periphery of the cylindrical case 1.
本構造のプリント基板取付用回転操作式可変抵
抗器の場合、下記の如き欠点があつた。 The rotary-operable variable resistor for mounting on a printed circuit board of this structure had the following drawbacks.
(1) 可変抵抗器のプリント基板への取付けに際し
第２図の如く接続端子７，７′，８，８′、９，
９′取付脚１１，１１をプリント基板１０の取
付孔に挿入して、基板１０の裏面（金属箔）側
に半田付をする方法としてデイツプ半田方式を
とると、プリント基板１０の取付孔から上つた
フラツクスが端子を伝つて流れ円筒ケース１１
と絶縁基板２の当接部等から可変抵抗器内部に
まで入り込み、接触不良等の原因となる。特に
下側基板２はプリント基板１０に近いこともあ
り抵抗素子５および導体６の上まで入り込む危
険性がある。上側基板２′はプリント基板１０
からある程度の距離があるため、この危険性は
少ない。この為、本構造の可変抵抗器のプリン
ト基板への取付けはデイツプ半田方式による自
動半田付ができず、入手による手半田方式をと
る必要がありセツト組立コストの面で不利であ
つた。(1) When installing the variable resistor to the printed circuit board, connect the connection terminals 7, 7', 8, 8', 9,
9' When the dip soldering method is used to insert the mounting legs 11, 11 into the mounting holes of the printed circuit board 10 and solder them to the back side (metal foil) of the printed circuit board 10, the upper The flux flows through the terminal and the cylindrical case 11
This may penetrate into the variable resistor through the contact portion of the insulating substrate 2, etc., causing poor contact. In particular, since the lower substrate 2 is close to the printed circuit board 10, there is a risk that it will penetrate above the resistive element 5 and the conductor 6. The upper board 2' is a printed circuit board 10
This risk is low because there is a certain distance from the For this reason, the variable resistor of this structure cannot be attached to a printed circuit board by automatic soldering using the dip soldering method, and it is necessary to use the manual soldering method when the resistor is obtained, which is disadvantageous in terms of set assembly cost.
本構造可変抵抗器の操作回転角度の規制は、
前述の如く回転体１３の突起１７が円筒形ケー
ス１の内側突部１８に当接することによりスト
ツパーとしているが、円筒ケース１の材質が合
成樹脂等であり、また小形化しようとすれば円
筒の外壁を厚くできないこともあつて、回転角
の終端に無理な力が加わると比較的小さな力で
突部１８が変形してしまうという欠点があつ
た。 The regulation of the operating rotation angle of this structured variable resistor is as follows:
As mentioned above, the protrusion 17 of the rotating body 13 comes into contact with the inner protrusion 18 of the cylindrical case 1 to act as a stopper, but since the material of the cylindrical case 1 is synthetic resin, etc. Partly because the outer wall cannot be made thick, there is a drawback that if excessive force is applied at the end of the rotation angle, the protrusion 18 will be deformed by a relatively small force.
発明の目的
本発明は以上の如き欠点を改良しようとするも
のであり、小形でありながらプリント基板への取
付時に半田フラツクスが流入し難く、また強度的
にも補強された回転操作式電子部品を提供しよう
とするものである。Purpose of the Invention The present invention aims to improve the above-mentioned drawbacks, and provides a rotary-operable electronic component that is small in size, yet difficult for solder flux to flow in when attached to a printed circuit board, and that is also reinforced in terms of strength. This is what we are trying to provide.
発明の構成
本発明は絶縁材料製箱形ケースの底面にインサ
ート成形により固定した金属板により、さらに固
定側接点、プリント基板取付脚、ケース開口部お
おい板用の保持脚および回転体の回転角度規制用
ストツパーをも形成することにより、小形であり
ながら強度的にも有利でデイツプ半田取付の可能
な小形回転操作式電子部品を提供するものであ
る。Structure of the Invention The present invention uses a metal plate fixed to the bottom of a box-shaped case made of an insulating material by insert molding, and further includes a fixed side contact, a printed circuit board mounting leg, a holding leg for a case opening cover plate, and a rotation angle regulation of a rotating body. By also forming a stopper, it is possible to provide a small rotary-operated electronic component which is small in size, has an advantage in strength, and can be attached by dip soldering.
実施例の説明
以下実施例に基づき本発明の構成および作用を
説明する。Description of Examples The structure and operation of the present invention will be explained below based on Examples.
第４図および第５図は本発明実施例回転操作式
小形連動可変抵抗器の分解斜視図および側断面図
であり、図において２１は絶縁性合成樹脂から成
る箱形円筒ケースで、その上面は開口部となり、
下面は底面部２２を有している。そしてこの底面
部２２上には一定の間隔を保つた同心円状に２個
の金属板製円形導体板（固定接点）２３，２４が
固定されると共に、これら導体板と一体になつた
接続用端子２５，２６がケース２１の外側まで引
出され下方に曲げられてプリント基板１９に対す
る取付用脚２７，２８を形成している。更に、外
側導体板２３から左右にケース２１の外側まで引
出された２本の脚部２９，３０は上方に折曲げら
れて絶縁基板（覆い板）３１の保持脚を形成して
いる。 4 and 5 are an exploded perspective view and a side sectional view of a rotary-operated small interlocking variable resistor according to an embodiment of the present invention. It becomes an opening,
The lower surface has a bottom surface portion 22 . Two metal circular conductor plates (fixed contacts) 23 and 24 are fixed concentrically on the bottom part 22 with a constant interval, and connecting terminals are integrated with these conductor plates. 25 and 26 are pulled out to the outside of the case 21 and bent downward to form mounting legs 27 and 28 for the printed circuit board 19. Furthermore, two legs 29 and 30 extended from the outer conductor plate 23 to the left and right outside of the case 21 are bent upward to form holding legs for the insulating substrate (cover plate) 31.
これら２個の円形導体板２３，２４外部接続用
端子２５，２６および保持脚２９，３０は第６図
Ａ，Ｂに示すように、一体の金属板を打抜き加工
したものを合成樹脂製円筒ケース２１の成形加工
時にインサート成形して固定した後、切断および
曲げ加工してフオーミングすることにより形成さ
れたものである。 These two circular conductor plates 23, 24, external connection terminals 25, 26, and holding legs 29, 30 are made by punching an integral metal plate and are attached to a synthetic resin cylindrical case, as shown in FIGS. 6A and 6B. It was formed by insert molding and fixing during the molding process of No. 21, and then cutting and forming by bending.
また、前記内側導体板２４と一体に内周側に形
成された突部３２は後述の回転体３９の回転角度
規制用ストツパーとして設けられたものであり、
円筒ケースの底部２２もこれら円形導体板２４の
内周と突部３２に合せた形状でくぼみ２２′が設
けられている。 Further, a protrusion 32 formed integrally with the inner conductor plate 24 on the inner peripheral side is provided as a stopper for regulating the rotation angle of a rotating body 39, which will be described later.
The bottom 22 of the cylindrical case is also provided with a recess 22' having a shape that matches the inner periphery of the circular conductor plate 24 and the protrusion 32.
そして、前記絶縁基板３１の下面には前記２個
の円形導体板２３，２４に対応し同一中心軸を有
する２個の同心抵抗素子層３３，３４が印刷によ
り形成され、夫々の始終端部には銀ペイント等で
導通された接続用端子３５，３６，３７，３８が
めにより取付けられ、ケース２１の外周に沿つ
て折曲げられて（導体板２３，２４の接続用端子
２５，２６と同様に）プリント基板１９に対する
取付用脚となつている。 Two concentric resistance element layers 33 and 34 having the same central axis and corresponding to the two circular conductor plates 23 and 24 are formed by printing on the lower surface of the insulating substrate 31, and are formed at the beginning and end of each. are attached by connecting terminals 35, 36, 37, 38 which are electrically connected with silver paint etc., and are bent along the outer periphery of the case 21 (same as the connecting terminals 25, 26 of the conductor plates 23, 24). ) They serve as mounting legs for the printed circuit board 19.
また、３９は絶縁性合成樹脂から成る回転体で
ケース底面２２上の２個の円形導体板２３，２４
の中心部円形突起４０と前記絶縁基板３１上の２
個の円形抵抗素子層３３，３４の中心孔４１によ
り回転可能に保持されており、該孔４１から外部
に突出した操作軸部４２に取付けられたツマミ４
３を介して回転操作される。 Further, 39 is a rotating body made of insulating synthetic resin, which connects two circular conductor plates 23 and 24 on the bottom surface 22 of the case.
The center circular protrusion 40 and the two on the insulating substrate 31
The knob 4 is rotatably held by the center hole 41 of each of the circular resistance element layers 33 and 34, and is attached to an operating shaft portion 42 that protrudes from the hole 41 to the outside.
Rotation operation is performed via 3.
そして、回転体３９の下面は第７図の如き形状
となつており、ケース底面２２の円形突起４０に
嵌合する円筒部４４と、前述の導体板２４と一体
にその内周に設けられた突部３２に当接するスト
ツパー用突起４５が設けられている。 The lower surface of the rotating body 39 has a shape as shown in FIG. 7, and includes a cylindrical portion 44 that fits into the circular protrusion 40 on the case bottom surface 22, and a cylindrical portion 44 that is integrally provided with the aforementioned conductor plate 24 on its inner periphery. A stopper projection 45 that comes into contact with the projection 32 is provided.
更に、この回転体３９には前記２個の円形導体
板２３，２４と２個の円形抵抗素子３３，３４の
外周側・内周側を夫々別個に弾接短絡する弾性接
点脚４６，４７および４８，４９を有する２個の
摺動子（可動接点）５０および５１が固定されて
いる。 Further, this rotary body 39 has elastic contact legs 46, 47 which elastically short-circuit the outer and inner circumferential sides of the two circular conductor plates 23, 24 and the two circular resistance elements 33, 34, respectively. Two sliders (movable contacts) 50 and 51 having 48 and 49 are fixed.
発明の効果
本発明は以上の如く構成されるものであり、プ
リント基板への取付けは、第５図に示す如く導体
板（固定接点）２３，２４の接続端子兼取付脚２
７，２８および抵抗素子用接続端子３５，３６，
３７，３８をプリント１９の取付孔に挿入して基
板１９の裏（金属箔）側に半田付をするのである
が、この場合、プリント基板１９の取付孔から取
付脚等を伝つてフラツクスが上つても、プリント
基板１９に近い取付脚２７，２８の根元（接続端
子２５，２６部）は合成樹脂のケース２１にイン
サートされており隙間がないからフラツクスはケ
ース２１の外壁の部分で止められてしまう。Effects of the Invention The present invention is constructed as described above, and the connection terminals and mounting legs 2 of the conductor plates (fixed contacts) 23 and 24 are attached to the printed circuit board as shown in FIG.
7, 28 and resistance element connection terminals 35, 36,
37 and 38 are inserted into the mounting holes of the printed circuit board 19 and soldered to the back (metal foil) side of the printed circuit board 19, but in this case, flux may flow upward from the mounting holes of the printed circuit board 19 through the mounting legs, etc. However, the roots of the mounting legs 27 and 28 (connection terminals 25 and 26) near the printed circuit board 19 are inserted into the synthetic resin case 21 and there is no gap, so the flux is stopped by the outer wall of the case 21. Put it away.
また抵抗素子用端子３５，３６，３７，３８を
伝つて上るフラツクスは（従来例で述べた如く）
絶縁基板３１まである程度の距離がある為ケース
２１の上部から入り込むことはない。 Also, the flux that goes up through the resistance element terminals 35, 36, 37, and 38 (as described in the conventional example)
Since there is a certain distance to the insulating substrate 31, it will not enter from the upper part of the case 21.
従つて、本案の構造であればデイツプ半田方式
による自動半田付を行なうことができる。 Therefore, with the structure of the present invention, automatic soldering using the dip soldering method can be performed.
操作回転角度の規制は、第７図に示す回転体３
９下面のストツパー用突起４５が合成樹脂製ケー
ス底面２２にインサート固定された金属製導体板
２４と一体の突部３２に当てる構造であり、回転
角の終端に多少無理な力が加わつても金属板製の
ストツパー用突部３２が変形することはない。 The operation rotation angle is regulated by rotating body 3 shown in Fig. 7.
The stopper protrusion 45 on the bottom surface of the case 9 is in contact with a protrusion 32 that is integrated with the metal conductor plate 24 inserted into the bottom surface 22 of the synthetic resin case. The stopper protrusion 32 made of a plate will not be deformed.
また該ストツパー用突部３２の下側に位置する
ケース底面２２の部分も成型材料で充填されてお
り、この部分もストツパーとして作用するし、更
に回転体３９の回転の保持部である円形突部４０
と回転止用ストツパー突部３２が一体成形されて
いるのでで回転角度終端における角度規制部の強
度は非常に安定したものになつている。また一体
の金属板でストツパー突部３２、導体板（固定接
点）２３，２４、接続端子兼取付脚２７，２８、
脚部（保持脚）２９，３０などを形成して部品相
互の位置精度の向上を図るとともに、この金属板
をケースにインサート成形して強度的に補強且つ
組立工数の削減を図ることができるものである。 Further, the part of the case bottom surface 22 located below the stopper projection 32 is also filled with molding material, and this part also acts as a stopper. 40
Since the rotation stopper protrusion 32 is integrally molded with the rotation stopper protrusion 32, the strength of the angle regulating section at the end of the rotation angle is extremely stable. In addition, the stopper protrusion 32, conductor plates (fixed contacts) 23, 24, connection terminals/mounting legs 27, 28,
Legs (holding legs) 29, 30, etc. are formed to improve the positional accuracy of the parts, and the metal plate is insert-molded into the case to strengthen it and reduce the number of assembly steps. It is.
以上の如く本発明は非常に有利な実用性の高い
小形の回転操作式電子部品を実現するものであ
る。 As described above, the present invention realizes a small rotary-operable electronic component that is very advantageous and highly practical.
第１図は従来例の電子部品の分解斜視図、第２
図は同電子部品の側断面図、第３図は同電子部品
の絶縁基板の平面図、第４図は本発明の実施例の
電子部品の分解斜視図、第５図は同電子部品の側
断面図、第６図Ａ，Ｂは同電子部品のケース部イ
ンサート成形部分の平面図、第７図は本発明の実
施例の電子部品の回転体下部の斜視図である。
１９……プリント基板、２１……絶縁性合成樹
脂、２２……底部、２３，２４……金属板製円形
導体板、２５，２６……接続用端子、２７，２８
……取付用脚、２９，３０……脚部、３１……絶
縁基板、３２……突部、３３，３４……同心円状
抵抗素子層、３５，３６，３７，３８……接続用
端子、３９……回転体、４０……中心部円形突
起、４１……中心孔、４２……操作軸部、４３…
…ツマミ、４４……円筒部、４５……ストツパー
用突起、４６，４７，４８，４９……弾性接点
脚。
Figure 1 is an exploded perspective view of a conventional electronic component;
3 is a plan view of an insulating substrate of the electronic component, FIG. 4 is an exploded perspective view of the electronic component according to an embodiment of the present invention, and FIG. 5 is a side view of the electronic component. 6A and 6B are plan views of the insert molded portion of the case portion of the electronic component, and FIG. 7 is a perspective view of the lower part of the rotating body of the electronic component according to the embodiment of the present invention. 19... Printed circuit board, 21... Insulating synthetic resin, 22... Bottom, 23, 24... Circular conductor plate made of metal plate, 25, 26... Connection terminal, 27, 28
...Mounting legs, 29, 30...Legs, 31...Insulating substrate, 32...Protrusions, 33, 34...Concentric circular resistance element layer, 35, 36, 37, 38...Connection terminals, 39...Rotating body, 40...Central circular projection, 41...Center hole, 42...Operation shaft portion, 43...
...Knob, 44...Cylindrical portion, 45...Protrusion for stopper, 46, 47, 48, 49...Elastic contact leg.
Claims (1)
る箱形ケースの底面にインサート成形された一本
の金属板から固定側接点を形成すると共に、上記
金属板をケースの外部まで延長して折曲げること
により接続端子兼プリント基板取付脚および上記
開口部に対する覆い板の保持脚を形成し、更に可
動接点を保持し上記ケースの底面中央部および覆
い板の中央孔で回転可能な様に支持された回転体
の回転角度規制用ストツパー突部を上記金属板に
より形成するとともに、上記ケースの底面部に上
記金属板のストツパーと同寸法の突部を上記ケー
スと一体に設けてストツパーを補強する構造であ
ることを特徴とする回転操作式小形電子部品。1. A fixed side contact is formed from a single metal plate insert-molded on the bottom of a box-shaped case made of insulating synthetic resin and has an opening on the top, and the metal plate is extended to the outside of the case and bent. This forms a connecting terminal/printed circuit board mounting leg and a holding leg of the cover plate for the opening, and further holds a movable contact and is rotatably supported at the center of the bottom of the case and the center hole of the cover plate. A stopper protrusion for regulating the rotation angle of the rotating body is formed of the metal plate, and a protrusion having the same dimensions as the stopper of the metal plate is provided on the bottom of the case integrally with the case to reinforce the stopper. A small rotary-operable electronic component characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5678385A JPH0248124B2 (en) | 1985-03-20 | 1985-03-20 | KAITENSOSASHIKIKOGATADENSHIBUHIN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5678385A JPH0248124B2 (en) | 1985-03-20 | 1985-03-20 | KAITENSOSASHIKIKOGATADENSHIBUHIN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60220903A JPS60220903A (en) | 1985-11-05 |
| JPH0248124B2 true JPH0248124B2 (en) | 1990-10-24 |
Family
ID=13037021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5678385A Expired - Lifetime JPH0248124B2 (en) | 1985-03-20 | 1985-03-20 | KAITENSOSASHIKIKOGATADENSHIBUHIN |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0248124B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62142806U (en) * | 1986-03-05 | 1987-09-09 | ||
| JP2008198359A (en) * | 2005-05-26 | 2008-08-28 | Alps Electric Co Ltd | Connector and electrical part using this |
-
1985
- 1985-03-20 JP JP5678385A patent/JPH0248124B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60220903A (en) | 1985-11-05 |
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