EP0627797A1 - Method for manufacturing contact pins - Google Patents
Method for manufacturing contact pins Download PDFInfo
- Publication number
- EP0627797A1 EP0627797A1 EP94201555A EP94201555A EP0627797A1 EP 0627797 A1 EP0627797 A1 EP 0627797A1 EP 94201555 A EP94201555 A EP 94201555A EP 94201555 A EP94201555 A EP 94201555A EP 0627797 A1 EP0627797 A1 EP 0627797A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- strip
- contact pins
- faces
- successive
- 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.)
- Granted
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
-
- 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
- H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
Definitions
- the invention relates to a method for manufacturing contact pins from a strip of conductive material according to the preamble of claim 1.
- the contact faces are formed on the contact pin parts at opposite sides of the strip, so that the contact faces of the contact pins obtained extend in the plane of the material strip.
- the faces of the contact pin parts extending transverse to these contact faces are not suitable for contacting a complementary contact element due to the step of cutting away the portions of the strip lying between subsequent contact pins.
- the invention aims to provide a method of the above-mentioned type whereby contact pins are obtained with a contact pin part with contact faces extending transverse to the plane of the material strip.
- contact pins can be manufactured which are particularly suitable for applications wherein the contact pins must be closely spaced. Further, contact pins can be manufactured for application in connector assemblies for connecting printed circuit boards at both sides of a central printed circuit board, wherein the printed circuit boards cross each other perpendicularly.
- Such contact pins are made with two contact pin parts with contact faces for contacting complementary contact elements, wherein in this case one contact pin part is twisted along 90° with respect to the other contact pin part.
- Fig. a shows two adjacent contact pins 1 formed out of a strip of conductive material, such as for example a suitable copper alloy, of which only a narrow band 2 is present connecting the successive contact pins with each other.
- the parts of the material strip lying between the successive contact pins 1 are cut away.
- the intermediate parts are cut away in such a manner at the top side of the narrow band 2 that the contact pins have a shoulder portion 3 lying in the plane of the strip.
- each contact pin 1 has a contact pin part 4 with opposite contact faces 5 lying in the respective main planes of the strip and are therefore extending substantially parallel to the shoulder portions 3.
- These contact faces 5 are formed in a usual manner for contacting a complementary element.
- the faces of the contact pin parts 1 directed towards each other are not suitable for contacting a complementary contact element due to the cutting away of the intermediate parts of the strip.
- the contact pins 1 are provided at their lower side with a press fit portion 6 known per se, wherein a contact pin is adapted to be inserted into a hole of a printed circuit board with this press fit portion 6.
- This press fit portion 6 guarantees a good contacting of the wall of the hole plated with a conductive material, and holds the contact pin 1 in the hole.
- the shoulder portion 3 is provided to press the contact pin 1 in a suitable manner into the hole of the printed circuit board.
- each contact pin 1 opposite of the contact pin part 4 can also be provided with opposite contact faces 5 extending in the main planes of the material strip.
- Such contact pins 1 with two contact pin parts 4, 7 are suitable for applications wherein the contact pins should be contacted at both sides of a printed circuit board.
- Fig. b it is indicated that in the embodiment shown the contact faces 5 of the contact pin parts 4 are advantageously plated with a noble metal, such as for example gold, when the contact pins 1 are still in the material strip.
- the coating layer 8 obtained is shown in the drawing by shading. Thereby a good contact with complementary contact elements can be guaranteed.
- Fig. c shows that the contact pin parts 4 are twisted along 90° with respect to the plane of the material strip when the contact pins 1 are still in the material strip. In this manner the contact pin parts 4 each include a twisted portion 9. Thereby it is obtained that the contact faces 5 extend transverse to the direction of the shoulder portions 3. Finally, the contact pins 1 are cut loose from the material strip as shown in Fig. d. A coating layer 8 of the contact faces of the contact pin parts 7 is schematically shown by shading in Figs. c and d.
- contact pins 1 By means of the method described contact pins 1 are obtained wherein the contact faces 5 of the contact pin part 4 extend transverse to the shoulder portions 3.
- the contact pins 1 are thereby particularly suitable for application in connector assemblies in systems with a central printed circuit board, wherein printed circuit boards mutually crossing each other perpendicularly are connected to the central printed circuit board at both sides. Further, the contact pins 1 are very suitable for applications, wherein the contact pins must be closely spaced.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
Abstract
Description
- The invention relates to a method for manufacturing contact pins from a strip of conductive material according to the preamble of claim 1.
- In applying this known method the contact faces are formed on the contact pin parts at opposite sides of the strip, so that the contact faces of the contact pins obtained extend in the plane of the material strip. The faces of the contact pin parts extending transverse to these contact faces are not suitable for contacting a complementary contact element due to the step of cutting away the portions of the strip lying between subsequent contact pins.
- The invention aims to provide a method of the above-mentioned type whereby contact pins are obtained with a contact pin part with contact faces extending transverse to the plane of the material strip.
- To this end the method of the invention is characterized by the characterizing features of claim 1.
- By means of the method of the invention contact pins can be manufactured which are particularly suitable for applications wherein the contact pins must be closely spaced. Further, contact pins can be manufactured for application in connector assemblies for connecting printed circuit boards at both sides of a central printed circuit board, wherein the printed circuit boards cross each other perpendicularly. Such contact pins are made with two contact pin parts with contact faces for contacting complementary contact elements, wherein in this case one contact pin part is twisted along 90° with respect to the other contact pin part.
- The invention will be further explained by reference to the drawings in which Figs. a, b, c and d show successive steps of an embodiment of the method according to the invention.
- Fig. a shows two adjacent contact pins 1 formed out of a strip of conductive material, such as for example a suitable copper alloy, of which only a
narrow band 2 is present connecting the successive contact pins with each other. The parts of the material strip lying between the successive contact pins 1 are cut away. As shown in Fig. a the intermediate parts are cut away in such a manner at the top side of thenarrow band 2 that the contact pins have ashoulder portion 3 lying in the plane of the strip. Above thisshoulder portion 3 each contact pin 1 has acontact pin part 4 withopposite contact faces 5 lying in the respective main planes of the strip and are therefore extending substantially parallel to theshoulder portions 3. Thesecontact faces 5 are formed in a usual manner for contacting a complementary element. The faces of the contact pin parts 1 directed towards each other are not suitable for contacting a complementary contact element due to the cutting away of the intermediate parts of the strip. - In the embodiment shown the contact pins 1 are provided at their lower side with a
press fit portion 6 known per se, wherein a contact pin is adapted to be inserted into a hole of a printed circuit board with thispress fit portion 6. Thispress fit portion 6 guarantees a good contacting of the wall of the hole plated with a conductive material, and holds the contact pin 1 in the hole. Theshoulder portion 3 is provided to press the contact pin 1 in a suitable manner into the hole of the printed circuit board. - The
contact pin part 7 of each contact pin 1 opposite of thecontact pin part 4 can also be provided withopposite contact faces 5 extending in the main planes of the material strip. Such contact pins 1 with twocontact pin parts - In Fig. b it is indicated that in the embodiment shown the contact faces 5 of the
contact pin parts 4 are advantageously plated with a noble metal, such as for example gold, when the contact pins 1 are still in the material strip. Thecoating layer 8 obtained is shown in the drawing by shading. Thereby a good contact with complementary contact elements can be guaranteed. - Fig. c shows that the
contact pin parts 4 are twisted along 90° with respect to the plane of the material strip when the contact pins 1 are still in the material strip. In this manner thecontact pin parts 4 each include atwisted portion 9. Thereby it is obtained that the contact faces 5 extend transverse to the direction of theshoulder portions 3. Finally, the contact pins 1 are cut loose from the material strip as shown in Fig. d. Acoating layer 8 of the contact faces of thecontact pin parts 7 is schematically shown by shading in Figs. c and d. - By means of the method described contact pins 1 are obtained wherein the contact faces 5 of the
contact pin part 4 extend transverse to theshoulder portions 3. The contact pins 1 are thereby particularly suitable for application in connector assemblies in systems with a central printed circuit board, wherein printed circuit boards mutually crossing each other perpendicularly are connected to the central printed circuit board at both sides. Further, the contact pins 1 are very suitable for applications, wherein the contact pins must be closely spaced. - The invention is not restricted to the above described embodiment which can be varied in a number of ways within the scope of the claims. It will be understood that the described embodiment of the contact pins 1 is only an example and that the method of the invention can also be applied at other types of contact pins.
Claims (3)
- Method for manufacturing contact elements from a strip of conductive material, wherein successive contact elements are formed in the strip by cutting away parts between the successive contact elements, wherein each contact element is made with a contact means with opposite contact faces for contacting a complementary contact element, characterized in that the contact means of each contact element includes a twisted portion in such a manner that the contact means is twisted along an angle of substantially 90° with respect to the plane of the material strip.
- Method according to claim 1, wherein the surfaces of said contact means lying in the plane of the strip are plated as contact faces with a noble metal before twisting the contact means.
- Method according to claim 1 or 2, wherein the contact elements are cut loose from the strip after the twisting step.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9300970 | 1993-06-04 | ||
NL9300970A NL9300970A (en) | 1993-06-04 | 1993-06-04 | Method of manufacturing contact pins. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0627797A1 true EP0627797A1 (en) | 1994-12-07 |
EP0627797B1 EP0627797B1 (en) | 1998-11-25 |
Family
ID=19862491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94201555A Expired - Lifetime EP0627797B1 (en) | 1993-06-04 | 1994-06-03 | System of printed circuit boards |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0627797B1 (en) |
NL (1) | NL9300970A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0793303A2 (en) * | 1996-02-28 | 1997-09-03 | Molex Incorporated | Electrical connector with terminals of varying lengths |
EP1429429A1 (en) * | 2002-12-10 | 2004-06-16 | Sumitomo Wiring Systems, Ltd. | A method for producing male terminal fittings and terminal fitting |
EP1786074A1 (en) * | 2005-11-10 | 2007-05-16 | Tyco Electronics France SAS | Header for electrical appartus, method for the manufacture thereof and electrical appartus. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3530422A (en) * | 1968-03-25 | 1970-09-22 | Elco Corp | Connector and method for attaching same to printed circuit board |
DE2631107A1 (en) * | 1975-07-21 | 1977-02-10 | Elfab Corp | PLUG AND METHOD OF MANUFACTURING AND ASSEMBLING THE PLUG |
EP0047469A2 (en) * | 1980-09-05 | 1982-03-17 | Harry Züst | Contact insertable in a metallised aperture in a printed-circuit board and method of inserting this contact |
DE3724033A1 (en) * | 1986-12-22 | 1988-06-30 | Erni Elektroapp | Method for producing integral contact springs |
US5183421A (en) * | 1991-07-24 | 1993-02-02 | Foxconn International, Inc. | Connector contact and method of manufacture |
-
1993
- 1993-06-04 NL NL9300970A patent/NL9300970A/en not_active Application Discontinuation
-
1994
- 1994-06-03 EP EP94201555A patent/EP0627797B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3530422A (en) * | 1968-03-25 | 1970-09-22 | Elco Corp | Connector and method for attaching same to printed circuit board |
DE2631107A1 (en) * | 1975-07-21 | 1977-02-10 | Elfab Corp | PLUG AND METHOD OF MANUFACTURING AND ASSEMBLING THE PLUG |
EP0047469A2 (en) * | 1980-09-05 | 1982-03-17 | Harry Züst | Contact insertable in a metallised aperture in a printed-circuit board and method of inserting this contact |
DE3724033A1 (en) * | 1986-12-22 | 1988-06-30 | Erni Elektroapp | Method for producing integral contact springs |
US5183421A (en) * | 1991-07-24 | 1993-02-02 | Foxconn International, Inc. | Connector contact and method of manufacture |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0793303A2 (en) * | 1996-02-28 | 1997-09-03 | Molex Incorporated | Electrical connector with terminals of varying lengths |
EP0793303A3 (en) * | 1996-02-28 | 1998-09-23 | Molex Incorporated | Electrical connector with terminals of varying lengths |
EP1429429A1 (en) * | 2002-12-10 | 2004-06-16 | Sumitomo Wiring Systems, Ltd. | A method for producing male terminal fittings and terminal fitting |
US6848955B2 (en) | 2002-12-10 | 2005-02-01 | Sumitomo Wiring Systems, Ltd. | Method for producing male terminal fittings and terminal fitting |
EP1786074A1 (en) * | 2005-11-10 | 2007-05-16 | Tyco Electronics France SAS | Header for electrical appartus, method for the manufacture thereof and electrical appartus. |
Also Published As
Publication number | Publication date |
---|---|
EP0627797B1 (en) | 1998-11-25 |
NL9300970A (en) | 1995-01-02 |
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