JPH0330272B2 - - Google Patents
Info
- Publication number
- JPH0330272B2 JPH0330272B2 JP58156216A JP15621683A JPH0330272B2 JP H0330272 B2 JPH0330272 B2 JP H0330272B2 JP 58156216 A JP58156216 A JP 58156216A JP 15621683 A JP15621683 A JP 15621683A JP H0330272 B2 JPH0330272 B2 JP H0330272B2
- Authority
- JP
- Japan
- Prior art keywords
- pin
- legs
- leg
- printed circuit
- circuit board
- 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
- 239000000463 material Substances 0.000 claims description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 description 11
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
Description
【発明の詳細な説明】
本発明は、印刷回路盤用電気的接触ピンに関
し、さらに詳しく言えば、電気的端子ピンが印刷
回路のベースの穴に挿入され、このピンがベース
の各側面から突出して電気的端子要素として働
き、それにコネクタが押し込められるかまたは導
線が巻き付けられるような電気的接触ピンに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to electrical contact pins for printed circuit boards, and more particularly, electrical contact pins are inserted into holes in the base of the printed circuit, with the pins protruding from each side of the base. The present invention relates to an electrical contact pin, which serves as an electrical terminal element, onto which a connector is pushed or a conductor wire is wound.
印刷回路盤のメツキ被覆穴に電気的端子ピンを
挿入するさいの損傷を低減するために、いくつか
の種類の押込み嵌合ピンがすでに提案されてき
た。 Several types of push-fit pins have been proposed to reduce damage when inserting electrical terminal pins into plated holes in printed circuit boards.
前記ピンの装着部分は、例えば1974年１月１日
付で特許された米国特許第3783433号に示される
ように、挿入時に弾性変形される。 The mounting portion of the pin is elastically deformed upon insertion, as shown, for example, in US Pat. No. 3,783,433, issued January 1, 1974.
外側に曲げられかつ穴への挿入時に弾性変形さ
れる２箇の脚をつくるように縦軸にそつて装着部
分を分割することは知られている。 It is known to divide the mounting part along the longitudinal axis to create two legs that are bent outwards and are elastically deformed upon insertion into the hole.
この場合、ピンの挿入および保持力が２つの接
触点だけで作用することがわかつた。直接の電気
的接触は、ピンに加えられる力がメツキ被覆穴の
包囲材料に伝達されるこれら２つの接触点につく
られる。 In this case it was found that the pin insertion and retention forces act at only two contact points. Direct electrical contact is made at these two contact points where the force applied to the pin is transmitted to the surrounding material of the plated hole.
接触表面は非常に小さいので、前記の包囲材料
に加えられる局部的応力が高くなり、これらの接
触点においてその材料に有害な影響を与える。さ
らに、前記の割り型二脚ピンは挿入されたとき、
ピンをねじつたり不整合にする非対称断面形状を
通常はしている。 Since the contact surfaces are very small, the local stresses exerted on the surrounding material are high and have a detrimental effect on the material at these contact points. Furthermore, when the split bipod pin is inserted,
They usually have an asymmetrical cross-sectional shape that causes the pin to become twisted or misaligned.
ピンはまた、1978年１月３日付で特許された米
国特許第4066326号に開示されているような３箇
の弾性脚を有するように製造される。 The pin is also manufactured with three resilient legs as disclosed in U.S. Pat. No. 4,066,326, issued January 3, 1978.
この場合、これらの脚は印刷回路盤の穴にピン
を挿入したさいに対称形状にはなつているが、３
つの接触点だけがつくられ、それらの脚が久的な
反作用を発生させるように互いに作用はしない。 In this case, these legs have a symmetrical shape when the pin is inserted into the hole in the printed circuit board, but 3
Only two points of contact are created; the legs do not interact with each other to produce permanent reactions.
印刷回路盤へのピンの装着面積は貴金属層
（Au、Pd、Ni、……）ではなく、ハンダ（錫−
鉛）・メツキによつて被覆されている特許の用途
において側面効果が生じることがわかつた。 The mounting area of the pins on the printed circuit board is not the noble metal layer (Au, Pd, Ni,...), but the solder (tin-
It was found that a side effect occurs in patent applications coated with lead) and plating.
ハンダ・メツキを施したピンをメツキ被覆トラ
フ穴に挿入することによつて、被覆の剥れが穴か
ら若干の長さにわたつて延びるような状態で外層
の被覆剥れを生じ、また、好ましくない接触を生
じる。 Inserting a solder-plated pin into a plated trough hole causes peeling of the outer layer such that the peeling extends some length from the hole; No contact occurs.
ハンダ・メツキの厚みにもとづいて、そのピン
は２つの特別な実施例に用いられる。第１の実施
例においては、ピンの装着部分が薄いハンダ層
（５〜10μ）で被覆される。この場合、印刷回路
盤に設けられる接触ピンが別のハンダを用いてま
たは用いずに加熱によつてハンダ付けされる。ピ
ンの穴との間の大きな接触面積のために、ハンダ
材料が挿入のさいに剥がされ、ピンの自由側面お
よび穴の内面上のハンダ材料はハンダ付け工程中
に一緒に流れ出す。第２の実施例においては、ピ
ンの装着部分上のハンダ層の厚みは１〜3μであ
つてさほど重要ではなく、印刷回路盤の穴との乾
燥接続をつくる。挿入作業中に生じる剥れは第１
実施例の場合よりも小さいが、しかし、パネルを
振動させたさいにその剥れがヒンから分離され、
これによつて好ましくない短絡を生じる。 Depending on the thickness of the solder plating, the pin is used in two special embodiments. In a first embodiment, the pin mounting area is coated with a thin layer of solder (5-10 microns). In this case, the contact pins provided on the printed circuit board are soldered by heating with or without a separate solder. Due to the large contact area between the pin and the hole, the solder material is stripped off during insertion, and the solder material on the free side of the pin and the inner surface of the hole flows together during the soldering process. In a second embodiment, the thickness of the solder layer on the pin mounting area is less critical, being 1 to 3 microns, creating a dry connection with the hole in the printed circuit board. Peeling that occurs during insertion is the first problem.
Although smaller than in the example, the peeling is separated from the hinge when the panel is vibrated, and
This results in undesirable short circuits.
剥れの形成は、３箇の弾性脚のうちの内側脚の
外側と穴の内側との間の大きな接触面積において
重要になる。 Separation formation becomes important at large contact areas between the outside of the inner leg of the three elastic legs and the inside of the hole.
本発明の目的は、機械的および電気的接点の量
が増加されかつ基盤の穴へのピンの挿入のさいに
恒久的な反作用を得るために弾性脚が互いに作用
するような改良された接触ピンを開発することに
ある。 The object of the invention is to provide an improved contact pin in which the amount of mechanical and electrical contacts is increased and the elastic legs act on each other to obtain a permanent reaction upon insertion of the pin into the hole in the base. The goal is to develop
本発明の別の目的は、同等の挿入力で小さい損
傷に抑えるように印刷回路盤の穴の内面と各接触
点との間の応力を低減させる改良された接触ピン
を提供することにある。 Another object of the present invention is to provide an improved contact pin that reduces stress between each contact point and the inside surface of a hole in a printed circuit board with less damage with equivalent insertion force.
本発明の別の目的は、錫を用いてまたは用いず
に印刷回路盤にハンダ付けされる接触ピンを提供
することにある。 Another object of the invention is to provide a contact pin that can be soldered to a printed circuit board with or without tin.
本発明の別の目的は、剥れの形成を防止しかつ
ピンの層と印刷回路盤の穴との間のハンダ接続を
改善することにある。 Another object of the invention is to prevent the formation of delamination and improve the solder connection between the pin layer and the printed circuit board holes.
本発明によれば、印刷回路盤の穴に接触ピンを
弾性変形自在に装着するのに適した中央部分を接
触ピンに設け、その中央部分に３箇の弾性脚を設
け、これら弾性脚をピンを穴に挿入したさいに対
称状に配置し、外側脚が互いに向かつて曲げられ
てＶ字形状を形成し、内側脚がくさびとして働き
２箇の外側脚間で密着される。 According to the present invention, the contact pin is provided with a central portion suitable for elastically deforming the contact pin into a hole in a printed circuit board, and three elastic legs are provided in the central portion, and these elastic legs are attached to the pin. are arranged symmetrically when inserted into the hole, the outer legs are bent toward each other to form a V-shape, and the inner leg acts as a wedge and is tightly fitted between the two outer legs.
好ましくは、外側脚の横断面は内側脚よりも薄
くなるように切り込み、互いに向かう曲りを改善
し、３箇の脚の端部をピンの本体に接続されたま
まにしておく。 Preferably, the cross section of the outer leg is cut thinner than the inner leg to improve bending towards each other and to keep the ends of the three legs connected to the body of the pin.
別の形状によれば、内側脚の一端はピンの本体
から切り離されている。 According to another configuration, one end of the inner leg is separated from the body of the pin.
接触点の電気的および機械的特性をさらに改善
するために、弾性脚の外縁または表面が印刷回路
盤の穴の内面と接触し、ピンおよび穴の導電性錫
層間に冷間溶接効果を発生する制御された波状の
形状に形成される。 To further improve the electrical and mechanical properties of the contact point, the outer edge or surface of the elastic leg contacts the inner surface of the hole in the printed circuit board, creating a cold welding effect between the conductive tin layer of the pin and hole Formed into a controlled wavy shape.
接触点の電気的および機械的特性をさらに改善
するために、内側脚の中央に縦方向のくぼみを設
ける。 To further improve the electrical and mechanical properties of the contact point, a longitudinal depression is provided in the center of the inner leg.
次に、図面を参照して本発明の電気的接触ピン
の実施例について説明する。まず、第１図および
第２図に示すように、電気的接触ピン１０は電気
的構成要素との接続を行う２箇の外側部分１１，
１２と、ピン１０を印刷回路盤１４の穴１５に固
定するための中央または装着部分１３とからでき
ている。中央部分１３の一端は肩１６を形成する
拡大横断面積を有している。 Next, embodiments of the electrical contact pin of the present invention will be described with reference to the drawings. First, as shown in FIGS. 1 and 2, the electrical contact pin 10 has two outer parts 11, which make connections with electrical components.
12 and a central or mounting portion 13 for fixing the pin 10 in a hole 15 in a printed circuit board 14. One end of the central portion 13 has an enlarged cross-sectional area forming a shoulder 16.
第２図から第４図までに示すように、中央部分
１３において、ピン１０はピンの縦軸に平行でか
つ互いに平行に延びる２条の貫通切込み１７，１
８を有している。したがつて、貫通切込み１７，
１８は３箇の弾性脚１９，２０，２１を形成す
る。図示するように、好ましくは、外側脚１９，
２１は同じ方向に曲げられ、他方、内側脚２０は
逆の方向に曲げられ、結局第３図に示すような横
断面をつくる。この横断面は第２図のＡ−Ａ線か
らみたものである。両外側脚１９，２１の外側縁
は、第３図から分るように、ピン１０の長手軸上
を中心とする所定半径の円の軌跡上に位置する
が、内側脚２０は前記軌跡の内方に位置するよう
に構成されている。 As shown in FIGS. 2 to 4, in the central portion 13 the pin 10 has two through cuts 17, 1 extending parallel to the longitudinal axis of the pin and parallel to each other.
It has 8. Therefore, the through cut 17,
18 forms three elastic legs 19, 20, 21. As shown, preferably the outer legs 19,
21 are bent in the same direction, while the inner legs 20 are bent in the opposite direction, resulting in a cross-section as shown in FIG. This cross section is taken along line A--A in FIG. As can be seen from FIG. 3, the outer edges of both outer legs 19 and 21 are located on the locus of a circle with a predetermined radius centered on the longitudinal axis of the pin 10, while the inner leg 20 is located on the locus of a circle with a predetermined radius centered on the longitudinal axis of the pin 10. It is designed to be located on the opposite side.
これらの曲げは、貫通切込み１７，１８の面内
で行われ、他方、脚１９，２０，２１の端部はピ
ン１０の本体に接続されたままになつている。 These bends are made in the plane of the through cuts 17, 18, while the ends of the legs 19, 20, 21 remain connected to the body of the pin 10.
第３図に示すように、外側脚１９，２１は内側
脚２０よりもわずかに小さくつくられ、互いに向
かう曲りを容易にしかつ穴１５への挿入時にＶ字
形状をつくる（第６図）。 As shown in Figure 3, the outer legs 19, 21 are made slightly smaller than the inner legs 20 to facilitate bending towards each other and create a V-shape upon insertion into the hole 15 (Figure 6).
第６図は、６箇所の接触点がピン１０と穴１５
との間にいかにつくられるかを明らかに示してい
る。 In Figure 6, the six contact points are pin 10 and hole 15.
It clearly shows how the relationship between
第７，８，９図に示す別の実施例によれば、内
側脚２０の端部がピン１０の本体から切り離され
ている。このような調節を与えるために、接触ピ
ン１０が穴１５内でハンダ付けされるように意図
されている場合、または接触面積の強度がいぜん
として低下しているような特別の用途条件に適合
させることができる。 According to another embodiment shown in FIGS. 7, 8 and 9, the end of the inner leg 20 is separated from the body of the pin 10. In order to provide such an adjustment, it is necessary to adapt the contact pin 10 to special application conditions, such as when the contact pin 10 is intended to be soldered in the hole 15, or where the strength of the contact area is still reduced. be able to.
第１２図は第１０図と同様な図面であつて第７
図のピンの挿入状態を示す。 FIG. 12 is a drawing similar to FIG.
The pin shown in the figure is shown in its inserted state.
２つの提案実施例にもとづく接触ピンの機械的
および電気的特性をさらに改善するために、弾性
脚の外側の縁または表面は、印刷回路盤の穴の内
面と接触し、第５，９，１１，１３図に示すよう
な制御された波状形状２２に形成される。 In order to further improve the mechanical and electrical properties of the contact pins according to the two proposed embodiments, the outer edges or surfaces of the elastic legs are in contact with the inner surface of the holes in the printed circuit board, and the fifth, ninth and eleventh , 13 is formed into a controlled wavy shape 22 as shown in FIG.
ピンを印刷回路盤に挿入するさいに、錫材料が
ピンの波状形状２２の凹部間に入り込むととも
に、酸化された新たな錫材料が印刷回路盤に接触
する。 Upon insertion of the pin into the printed circuit board, the tin material enters between the recesses of the corrugations 22 of the pin and new oxidized tin material contacts the printed circuit board.
波状形状２２の凹部間に入り込んだ錫材料は、
しばらくたつた後に引抜力を増大させる波状形状
のいわゆる“冷間溶接”を形成する。 The tin material that has entered between the recesses of the wavy shape 22 is
After a period of time, a so-called "cold weld" with a wave-like shape is formed which increases the pull-out force.
第１４図には接触ピン１０の拡大中央部分１３
の別の実施例が示されている。中央部分１３は３
箇の弾性変形自在脚１９，２０，２１をつくるた
めに、一定の長さにわたつて２条の貫通切込み１
７，１８が入れられている。 FIG. 14 shows an enlarged central portion 13 of the contact pin 10.
Another example is shown. The central part 13 is 3
In order to create the elastically deformable legs 19, 20, 21, two through cuts 1 are made over a certain length.
7 and 18 are included.
本発明によれば、内側脚２０の外側３０には、
中央に縦方向のくぼみ３２が設けられている。 According to the invention, the outer side 30 of the inner leg 20 includes:
A vertical recess 32 is provided in the center.
ピンの製造のさいに、ピン１０の外側３０のく
ぼみ３２は側面にわずかな波状を形成している。
その強さは、内側脚２０の波状外側３０における
材料の局部的圧縮によつて増加される。 During manufacture of the pin, the recess 32 on the outside 30 of the pin 10 forms a slight undulation on the sides.
Its strength is increased by localized compression of the material on the corrugated outer side 30 of the inner leg 20.
好ましくは、内側脚２０の側面３６が内側３４
に向かつて円錐状に形成されている。これによ
り、２箇の外側脚１９，２１の間で内側脚２０の
くさび作用を改善する。 Preferably, the sides 36 of the medial leg 20 are on the medial side 34.
It is shaped like a cone towards the end. This improves the wedging effect of the inner leg 20 between the two outer legs 19,21.
数回の試験によつて、内側脚２０の幅Ｍと外側
脚１９，２１の幅Ｂとの間の最適比が確立され
た。この比Ｍ／Ｂの値は主として1.05と1.2との
間にあり、好ましくは1.13でかつ材料の厚みＤが
0.63mmで、装着部分の全幅が1.05mmである。 Through several tests, an optimal ratio between the width M of the inner leg 20 and the width B of the outer legs 19, 21 was established. The value of this ratio M/B is mainly between 1.05 and 1.2, preferably 1.13 and the material thickness D
It is 0.63mm, and the total width of the attached part is 1.05mm.
前記の比を考慮に入れることによつて、印刷回
路盤の穴へのピン本体の自動心出し作用を得るこ
とができる。 By taking into account the aforementioned ratios, a self-centering effect of the pin body in the hole of the printed circuit board can be obtained.
外側脚の丸められた外側の半径Ｒ２は内側にあ
る丸められた縁の半径Ｒ１よりも大きくされてい
る。 The radius R2 of the outer rounded outer leg is greater than the radius R1 of the inner rounded edge.
ピンおよび穴のハンダ層の再流入後の接触領域
がつくられていることが第１５図から明らかであ
る。この接触により、顕著な電気的接触がくぼみ
３２および脚１９，２０，２１の間のすべての縁
にハンダで完全に満たすことによつて得られる。 It is clear from FIG. 15 that a contact area is created after the re-inflow of the solder layer of the pins and holes. With this contact, significant electrical contact is obtained by completely filling the recess 32 and all edges between the legs 19, 20, 21 with solder.
第１図は多層印刷回路盤に挿入された一連のピ
ンを示す斜視図。第２図は本発明にもとづくピン
の正面図。第３図は第２図のＡ−Ａ線からみ横断
面図。第４図は第２図に示すピンの側面図。第５
図は第４図と同様な図面であつて、接触脚が波状
になつている別の実施例を示す。第６図は第３図
と同様な横断面図であつて、印刷回路盤に挿入さ
れたピンの状態を示す。第７図は第２図のピンと
同様な図面であつて内側脚の先端が切り離された
別の実施例を示す。第８図は第７図に示すピンの
側面図。第９図は第８図と同様な図面であつて、
接触脚が波状になつている別の実施例を示す。第
１０図は第２図のピンの縦断面図であつて、印刷
回路盤に挿入されたピンの状態を示す。第１１図
は第１０図と同様な図面であつて波状接触脚を有
するピンの挿入状態を示す。第１２図は第１０図
と同様な図面であつて第７図のピンの挿入状態を
示す。第１３図は第１０図と同様な図面であつて
第９図のピンの挿入状態を示す。第１４図は第３
図と同様な図面であつて別の実施例を示す。第１
５図は第１４図と同様な図面であつて、印刷回路
盤に挿入されハンダが流し込まれたピンの状態を
示す。
１０：電気的接触ピン、１１：外側部分、１
２：外側部分、１３：中央部分、１４：印刷回路
盤、１５：穴、１６：肩、１７，１８：貫通切込
み、１９，２１：外側脚、２０：内側脚、２２：
波状形状、３０：外側、３２：くぼみ、３４：内
側。
FIG. 1 is a perspective view showing a series of pins inserted into a multilayer printed circuit board. FIG. 2 is a front view of a pin according to the invention. FIG. 3 is a cross-sectional view taken along the line A--A in FIG. 2. FIG. 4 is a side view of the pin shown in FIG. 2. Fifth
The figure is a view similar to FIG. 4 and shows an alternative embodiment in which the contact legs are corrugated. FIG. 6 is a cross-sectional view similar to FIG. 3, showing the pins inserted into the printed circuit board. FIG. 7 is a drawing similar to the pin of FIG. 2, showing another embodiment with the tips of the inner legs cut away. FIG. 8 is a side view of the pin shown in FIG. 7. FIG. 9 is a drawing similar to FIG. 8, and
2 shows another embodiment in which the contact legs are wavy; FIG. 10 is a longitudinal sectional view of the pin of FIG. 2, showing the state of the pin inserted into the printed circuit board. FIG. 11 is a view similar to FIG. 10, showing the insertion of a pin with wavy contact legs. FIG. 12 is a drawing similar to FIG. 10 and shows the state in which the pin of FIG. 7 is inserted. FIG. 13 is a drawing similar to FIG. 10 and shows the state in which the pin of FIG. 9 is inserted. Figure 14 is the third
Figure 3 is a drawing similar to the figure, showing another embodiment; 1st
FIG. 5 is a drawing similar to FIG. 14, showing the pin inserted into the printed circuit board and filled with solder. 10: Electrical contact pin, 11: Outer part, 1
2: Outside part, 13: Central part, 14: Printed circuit board, 15: Hole, 16: Shoulder, 17, 18: Through cut, 19, 21: Outside leg, 20: Inside leg, 22:
Wavy shape, 30: outside, 32: hollow, 34: inside.
Claims (1)
ンを弾性変形自在に固定するのに敵した中央部分
を設け、該中央部分に２条の縦の貫通切込みを入
れて３箇の弾性脚を形成し、それらのうちの両外
側脚を切込み面内で一方の方向に曲げ、残りの内
側脚を逆の方向に曲げ、前記両外側脚の外側縁が
ピンの長手軸上を中心とする円の軌跡上に位置す
るとともに、前記内側脚が前記軌跡の内方に位置
し、前記ピンを前記円形穴に挿入すると、最初に
前記外側脚の外方に伸長する縁部が前記円形穴の
周縁に当接して各当接点でトルクモーメントを発
生させ、これにより前記外側脚が捩られて前記内
側脚の回りで互いの方向に向けて曲げられ互いの
方向に傾斜した形状とされ、前記内側脚が、前記
軌跡の内方に位置する形状により、次に前記円形
穴の周縁と当接して前記ピンの中心に垂直に向か
う力を生じ、これにより前記内側脚が変位して前
記２つの外側脚の間にくさびの態様で係合される
ように、前記ピンの中央部の形状が構成されてい
ることを特徴とする印刷回路盤用電気的接触ピ
ン。 ２ 前記貫通切込みは、印刷回路盤の穴にピンを
挿入した際の互いに向かう曲げを改善するため
に、前記内側脚よりも薄く前記外側脚を作るよう
に入れられていることを特徴とする特許請求の範
囲第１項に記載のピン。 ３ ３箇の弾性脚の端部がピン本体に接続された
ままになつていることを特徴とした特許請求の範
囲第１項又は第２項に記載のピン。 ４ 前記内側脚の一端がピン本体から切り離され
ていることを特徴とした特許請求の範囲第１項か
ら第３項までのいずれか記載のピン。 ５ 印刷回路盤の穴の内側との接触領域を作る弾
性脚の外側の縁又は表面に波状の形状を設けてピ
ン及び穴の錫の層間に冷間溶接を作ることを特徴
とした特許請求の範囲第１項から第４項までのい
ずれか記載のピン。 ６ 前記内側脚の外側の中央に縦方向のくぼみを
設けたことを特徴とした特許請求の範囲第１項に
記載のピン。 ７ 内側脚の幅Ｍと外側脚の幅Ｂとの比が主とし
て1.05と1.2との間にあることを特徴とした特許
請求の範囲第６項に記載のピン。 ８ 前記脚の幅の比（Ｍ／Ｂ）を1.13とし、ピン
の材料の厚みＤを0.63mmとすることを特徴とした
特許請求の範囲第７項に記載のピン。 ９ 前記内側脚の側壁が内側に向かつてその相互
幅が幅狭となるテーパ状になつていることを特徴
とした特許請求の範囲第８項に記載のピン。 １０ 前記外側脚の外縁の角の丸みの半径Ｒ２が
該外側脚の内縁の角の丸みの半径Ｒ１よりも大き
いことを特徴とした特許請求の範囲第６項に記載
のピン。[Claims] 1. A pin to be inserted into a circular hole in a printed circuit board is provided with a central portion suitable for elastically deformably fixing the pin, and two vertical through-cuts are made in the central portion. to form three elastic legs, of which both outer legs are bent in one direction within the cut plane, and the remaining inner legs are bent in the opposite direction, so that the outer edges of the two outer legs are aligned with the longitudinal direction of the pin. When the pin is inserted into the circular hole, the outwardly extending edge of the outer leg is located on a circular trajectory centered on the axis, and the inner leg is located inside the trajectory, and when the pin is inserted into the circular hole. the outer legs abut against the periphery of the circular hole to generate a torque moment at each point of contact, which causes the outer legs to be twisted and bent towards each other around the inner legs and tilted towards each other. The shape of the inner leg, which is located inward of the trajectory, then abuts against the periphery of the circular hole and generates a force perpendicular to the center of the pin, thereby displacing the inner leg. An electrical contact pin for a printed circuit board, characterized in that the shape of the central part of the pin is configured such that it is engaged in a wedge manner between the two outer legs. 2. The patent characterized in that the through cut is made to make the outer leg thinner than the inner leg in order to improve bending toward each other when the pin is inserted into the hole in the printed circuit board. A pin according to claim 1. 3. The pin according to claim 1 or 2, wherein the ends of the three elastic legs remain connected to the pin body. 4. The pin according to any one of claims 1 to 3, wherein one end of the inner leg is separated from the pin body. 5. A patent claim characterized in that the outer edge or surface of the elastic legs making the contact area with the inside of the hole of the printed circuit board is provided with a wavy shape to create a cold weld between the pin and the tin layer of the hole. Pins listed in any of the ranges 1 to 4. 6. The pin according to claim 1, characterized in that a vertical recess is provided in the center of the outer side of the inner leg. 7. Pin according to claim 6, characterized in that the ratio of the width M of the inner leg and the width B of the outer leg lies mainly between 1.05 and 1.2. 8. The pin according to claim 7, wherein the leg width ratio (M/B) is 1.13, and the pin material has a thickness D of 0.63 mm. 9. The pin according to claim 8, wherein the side walls of the inner legs are tapered inward so that their mutual widths become narrower. 10. The pin according to claim 6, wherein the radius R2 of the corner radius of the outer edge of the outer leg is larger than the radius R1 of the corner radius of the inner edge of the outer leg.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE0/208920A BE894258A (en) | 1982-08-31 | 1982-08-31 | ELECTRICAL CONTACT FOR PRINTED CIRCUITS |
| BE208920 | 1982-08-31 | ||
| BE210658 | 1983-04-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5980985A JPS5980985A (en) | 1984-05-10 |
| JPH0330272B2 true JPH0330272B2 (en) | 1991-04-26 |
Family
ID=3843555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15621683A Granted JPS5980985A (en) | 1982-08-31 | 1983-08-26 | Electric contact pin for printed circuit board |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5980985A (en) |
| BE (1) | BE894258A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH021870U (en) * | 1988-06-15 | 1990-01-09 | ||
| GB8908411D0 (en) * | 1989-04-13 | 1989-06-01 | Amp Holland | Surface mount electrical connector |
| KR101697934B1 (en) * | 2015-01-15 | 2017-01-20 | 주식회사 세현 | Connector pin for PCB |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611863A (en) * | 1979-07-09 | 1981-02-05 | Kel Kk | Connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608379Y2 (en) * | 1980-04-07 | 1985-03-25 | ヒロセ電機株式会社 | Press-fit type contact |
-
1982
- 1982-08-31 BE BE0/208920A patent/BE894258A/en not_active IP Right Cessation
-
1983
- 1983-08-26 JP JP15621683A patent/JPS5980985A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611863A (en) * | 1979-07-09 | 1981-02-05 | Kel Kk | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| BE894258A (en) | 1983-02-28 |
| JPS5980985A (en) | 1984-05-10 |
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