JP2009140645A - Male electric contact manufacturing method for electric connector, and male electric contact of electric connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a durable male electric contact of an electric connector and a manufacturing method thereof, capable of easily manufacturing and reducing manufacturing costs and securing reliable contact force against a female contactor. <P>SOLUTION: In the manufacturing method for the male electric contact of an electric connector, upper and lower plate sections extending parallel with each other form convex ribs by press working at lower sides of same longitudinal locations on the upper and lower plate sections located in the front of a connecting plate section against a flat plate member where the upper and lower plate sections are connected to the connecting plate section at the middle position, the tips of the upper and lower plate sections are bent downward by bending the tips of the upper and lower plate sections, the upper and lower plate sections located in the front of the connecting plate section, the upper and lower plate sections located at the back of the connecting plate section, or a part of either of the upper and lower plate sections are bent upward, the location of the upper and lower plate sections at the back of the bent connecting plate section is set up to be a parallel position lower than the upper and lower plate sections, and then, the upper and lower plate sections are bent downward at a right angle around a boundary line as a folding line. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electrical connector technology, and more particularly to a method of manufacturing a male electrical contact inserted into a female contact in an electrical connector system and a male electrical contact of an electrical connector.

Due to the miniaturization of electrical circuits, there is a strong demand for male electrical contacts for electrical connectors to ensure reliable contact force with female contacts, improve durability, and ease of manufacturing. In order to meet such a demand, Japanese Patent Application Laid-Open No. 2005-11583 discloses a male electrical contact formed by punching a metal plate into the shape of a male contact terminal and bending it, and a manufacturing method thereof. Yes.
JP-A-2005-11583

  However, the one disclosed in Japanese Patent Application Laid-Open No. 2005-11583 has a complicated shape punched from a metal plate, and is formed by bending a flat plate having the complicated shape, so that the manufacturing process is complicated. There are problems that the cost is high and the manufactured male contact is not sufficiently durable.

  The present invention solves the above-mentioned conventional problems, is easy to manufacture, can reduce manufacturing costs, can ensure a reliable contact force with a female contact, and is a male connector for a durable electrical connector. An object is to provide a contact and a method for manufacturing the contact. In the present invention, expressions such as “up”, “down”, “front”, and “back” are used for convenience in order to specify the location of each component member, but “up” means the upper direction toward the drawing and “lower” in the drawing. It means the downward direction, the front means the left direction toward the drawing, the rear means the right direction toward the drawing, and at the same time inserted into the female electric contact when formed into a male electric contact The direction of the direction is defined by the word forward, and the opposite side is defined by the word backward.

  In order to solve the above-mentioned problem, the first invention of the present invention relates to a method of manufacturing a male electrical contact of an electrical connector, wherein the upper and lower plate portions extending in parallel are connected to each other by a connecting plate portion at an intermediate position. The upper and lower plates located in front of the connecting plate portion are formed by forming a convex rib on the lower side of the upper and lower plate portions located in front of the connecting plate portion by pressing so as to be the same in the longitudinal direction. Part of the upper and lower plate portions or the upper and lower plate portions located at the rear and the upper and lower plate portions, and the tip portion of the upper and lower plate portions is bent downward, and a portion of the upper and lower plate portions located in front of the connecting plate portion And a part of either the upper or lower plate part or the upper or lower plate part located at the rear is folded upward, and the position of the upper or lower plate part behind the bent connecting plate part is set to a parallel position lower than the front upper or lower plate part. Lower the upper and lower plate parts with the boundary line with the intermediate connection part as the broken line Characterized by a right angle bent to.

  According to the second aspect of the present invention, in the method for manufacturing the male electrical contact of the electrical connector, the upper and lower plate portions extending in parallel are positioned in front of the connecting plate portion with respect to the flat plate member connected by the connecting plate portion at an intermediate position. The upper and lower plate portions are formed with a plurality of lower ribs by pressing, and a part of the plurality of ribs formed on the upper and lower plate portions is a rib having a different protruding position and a high protruding height, Bend the tip of the upper and lower plate part, the upper and lower plate part located at the front, and the upper and lower plate part located at the rear or part of the upper and lower plate part, and fold the tip part of the upper and lower plate part downward and connect A part of the upper and lower plate part located in front of the plate part and a part of either the upper or lower plate part located in the rear or the upper and lower plate part are folded upward, and the position is located behind the bent connection plate part of the connection plate part. The position of the upper and lower plate parts to be moved is lower than the upper and lower plate parts located at the front And row position, and then characterized by a right angle bent downward vertically plate border between the intermediate connecting portion as fold line.

  According to the third aspect of the invention, in the method of manufacturing the male electrical contact of the electrical connector according to the first or second aspect of the invention, the upper and lower plate portions are bent downward at a right angle with the boundary line with the intermediate connection portion as the folding line, A curved portion is formed by pressing upward or downward with respect to a portion of the upper and lower plate portions behind the connecting portion.

  In the fourth aspect of the present invention, the male electrical contact of the electrical connector includes a tip portion where the upper and lower plate portions face and contact each other, and a convex rib which faces and contacts each other inside the upper and lower plate portions extending in parallel at a predetermined interval. A rib-reinforcing part, an intermediate part with a U-shaped cross-section that is connected by a connecting plate part orthogonal to the rear and wider than the parallel interval between the upper and lower front plate parts, and an upper and lower plate via a bent part located behind the intermediate part And a terminal portion extending in contact with the portion.

  According to the fifth aspect of the present invention, in the male electrical contact of the electrical connector, the top and bottom plate portions face each other inward and the top and bottom plate portions that extend in parallel at a predetermined interval are partially different in the longitudinal direction. A plurality of convex ribs protruding in the length direction, ribs having different lengthwise positions are in contact with opposing plate portions, and ribs having the same lengthwise position are rib reinforcing portions where the ribs are in contact with each other; An intermediate part with a U-shaped cross-section that is connected by orthogonal connecting plate parts and wider than the parallel interval between the two front plate parts, and a terminal that is located behind the intermediate part and that extends from the upper and lower plate parts through a bent part. And a section.

  According to a sixth aspect of the present invention, in the male electric contact of the electric connector according to the fourth or fifth aspect of the present invention, a curved portion is formed in a part of the terminal portion.

With respect to the flat plate member in which the upper and lower plate portions extending in parallel of the present invention are connected by the connecting plate portion at an intermediate position, the upper and lower plate portions positioned in front of the connecting plate portion have the same position in the length direction by pressing. A convex rib is formed on the lower side, and the tip of the upper and lower plate portions and the upper and lower plate portions positioned in front of the connecting plate portion and the upper and lower plate portions positioned at the rear or a part of the upper and lower plate portions are bent. Bending the tip of the upper and lower plate portions downward, bending a part of the upper and lower plate portions located in front of the connecting plate portion and a portion of the upper and lower plate portions or upper and lower plate portions located in the rear, A configuration in which the position of the upper and lower plate portions behind the bent connecting plate portion is set to a parallel position lower than that of the front upper and lower plate portions, and then the upper and lower plate portions are bent downward at a right angle with the boundary line with the intermediate connecting portion as a folding line. The shape of the flat plate member is simple and the number of bending processes Less it is possible to reduce the manufacturing is easy manufacturing cost.
For flat plate members with parallel upper and lower plate parts connected by a connecting plate part at an intermediate position, a plurality of lower ribs are formed by pressing the upper and lower plate parts located in front of the connecting plate part. And a part of the plurality of ribs formed on the upper and lower plate portions is a rib having a different protruding position in the length direction and a high protruding height, and is located on the upper and lower plate portions located on the front and the front of the upper and lower plate portions and on the rear side. Bending part of either the upper or lower plate part or the upper and lower plate parts to be bent, and bending the tip part of the upper and lower plate part downwardly, the part of the upper and lower plate part located in front of the connecting plate part and the rear A part of either the upper or lower plate portion or the upper and lower plate portions is bent upward, and the position of the upper and lower plate portions positioned behind the connection plate portion where the connection plate portion is bent is lower than the upper and lower plate portions positioned in front. Next, the upper and lower plate parts face downward with the boundary line with the intermediate connection part as the broken line The configuration of a right angle bending, the shape of the flat plate member is simple, it is possible to reduce the bending since the number of machining is small is easy to manufacture the manufacturing cost.
After bending the upper and lower plate parts downward at a right angle with the boundary line with the intermediate connection part as a fold line, the upper and lower plate parts behind the intermediate connection part are pressed upward or downward to form the curved part. By the structure to form, the shape of the terminal part for connecting a male electrical contact to conductors, such as a printed circuit board, can be made suitable for the connection to a conductor.
Connected by a tip part where the upper and lower plate parts face each other inward, a rib reinforcing part having convex ribs facing each other inwardly on the upper and lower plate parts extending in parallel at a predetermined interval, and a connecting plate part orthogonal to the rear thereof Closed by a configuration comprising an intermediate portion having a U-shaped cross section wider than the parallel interval of the front upper and lower plate portions, and a terminal portion located behind the intermediate portion and extending in contact with the upper and lower plate portions via the bent portion. The tip makes it easy to insert into the female contact, the rib reinforcement ensures strength and durability against the compressive force of the housing, and the middle improves the strength and durability of the entire male contact. The part can facilitate connection with the electrical connection terminal.
The upper and lower plate portions that face each other inward and the upper and lower plate portions that extend in parallel at a predetermined interval have a plurality of convex ribs partially protruding inward in the longitudinal direction, Ribs with different longitudinal positions are in contact with opposing plate parts, and ribs with the same length in the longitudinal direction are connected by a rib reinforcing part where the ribs are in contact with each other and a connecting plate part orthogonal to the rear, and the two front plate parts The closed tip is a female contact with a configuration including an intermediate portion having a U-shaped cross section wider than the parallel interval of the intermediate portion and a terminal portion that is located rearward from the intermediate portion and extends through the bent portion so that the upper and lower plate portions are in contact with each other. Easy to insert into, the rib reinforcement ensures the strength and durability against compressive forces in different positions in the length direction of the accommodating part, the middle part improves the strength and durability of the entire male contact, The terminal portion can facilitate connection with the electrical connection terminal.
With the configuration in which the curved portion is formed in a part of the terminal portion, the connection to a conductor such as a printed circuit board can be ensured by the spring function of the curved portion.

  Embodiments of the present invention will be described with reference to the drawings. 1, FIG. 2 (a) (b), FIG. 3 (a) (b) is a figure which shows 1st Embodiment of the manufacturing method of the male electrical contact of the electrical connector of this invention.

  FIG. 1 is a plan view showing the first step of the first embodiment of the present invention. The flat plate member 1 is formed by processing such as punching a conductive metal plate. The flat plate member 1 has a flat plate shape in which an upper plate portion 2 and a lower plate portion 3 extend in parallel and are connected by a connecting plate portion 4 at an intermediate portion between the upper and lower plate portions 2 and 3. The ribs 5 and 6 of predetermined length convex downward are formed in the part located ahead of the connection board part 4 of the upper-and-lower board parts 2 and 3 so that the position of a length direction may become the same.

  FIGS. 2A and 2B are a side view and a plan view showing the next step of the first embodiment of the method of manufacturing the male electrical contact of the electrical connector of the present invention. In this step, the tip portions of the upper and lower plate portions 2 and 3 and a part of the upper and lower plate portions 2 and 3 before and behind the connecting plate portion 4 are bent. The tip portions of the upper and lower plate portions 2 and 3 are bent downward to form the tip bent portions 7 and 8. A part of the upper and lower plate portions 2 and 3 in front of the connecting plate portion 4 is bent obliquely upward to form the front bent portions 9 and 10. Part of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 is bent obliquely downward to form the rear bent portions 11 and 12. In the embodiment shown in the figure, the front bent portions 9 and 10 are bent obliquely upward and the rear bent portions 11 and 12 are bent obliquely downward, but may be bent at a right angle. However, when performing the bending process, the bending process at a right angle places a burden on the metal plate, and therefore an oblique bending process is desirable. Further, only one of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 may be bent. In that case, both the upper and lower plate portions 2 and 3 are bent larger than the amount of bending when bending.

  The height (bending height) between the tips of the tip bent portions 7 and 8 and the horizontal portion is set to be substantially the same as the height of the ribs 5 and 6. Positions of the upper and lower plate portions 2 and 3 extending in parallel to the rear of the rear bent portions 11 and 12 by making the bent height of the rear bent portions 11 and 12 larger than the bent height of the front bent portions 9 and 10. Are formed so as to be at the positions of the tips of the ribs 5 and 6. The positions of the upper and lower plate portions 2 and 3 that extend in parallel to the front of the front bent portions 9 and 10 are higher than the upper and lower plate portions 2 and 3 that extend in parallel to the rear of the rear bent portions 11 and 12. When only one of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 is bent, the position of one of the bent plate portions is the case where both the upper and lower plate portions 2 and 3 are bent. The position is lower than the positions of the upper and lower plate portions 2 and 3.

  FIG. 3A is a plan view showing the next step of the first embodiment of the method of manufacturing the male electrical contact of the electrical connector of the present invention, FIG. 3B is a side view, and FIG. These are the XX sectional view taken on the line of Fig.3 (a). In this step, the upper and lower plate portions 2 and 3 are bent downward at a right angle with the boundary line a between the connecting plate portion 4 and the upper plate portion 2 and the boundary line b between the connecting plate portion 4 and the lower plate portion 3 as folding lines.

  After the steps shown in FIGS. 3A, 3 </ b> B, and 3 </ b> C, a part of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 is pressed to either the upper or lower side, A curved portion may be formed in a part of the rear upper and lower plate portions 2 and 3.

  After the above steps, the male electrical contact 13 of the electrical connector as shown in FIGS. 3A, 3B and 3C is formed. The male contact 13 of the electrical connector is a tip portion 14 where the tips of the tip bent portions 7 and 8 of the upper and lower plate portions 2 and 3 are in contact with each other. Subsequent upper and lower plate portions 2 and 3 extend in parallel, and convex ribs 5 and 6 are arranged on the inner side thereof so that the tips of the protrusions are in contact with each other to form a rib reinforcing portion 15.

  The intermediate portion 16 formed by the upper and lower plate portions 2 and 3 connected by the connecting plate portion 4 has a cross section in which the interval between the upper and lower plate portions 2 and 3 is larger than the interval between the upper and lower plate portions 2 and 3 of the rib reinforcing portion 15. It is formed in a U shape.

  Behind the intermediate portion 16, the upper and lower plate portions 2, 3 are in contact with each other via the rear bent portions 11, 12 to form a terminal portion 17 extending linearly. The upper and lower plate portions 2 and 3 are bent downward at a right angle with the boundary line a between the connecting plate portion 4 and the upper plate portion 2 and the boundary line b between the connecting plate portion 4 and the lower plate portion 3 as folding lines, and then the connecting plate portion 4 When a part of the upper and lower plate parts 2 and 3 on the rear side is pressed upward or downward and a curved part is formed on a part of the upper and lower plate parts 2 and 3 on the rear side of the connecting plate part 4, A terminal portion 17 is formed on the rear side of 16 by forming a curved portion with the upper and lower plate portions 2 and 3 in contact with each other via the rear bent portions 11 and 12. FIG. 4 shows a case where the front bent portions 9 and 10 and the rear bent portions 11 and 12 are bent at a right angle.

  FIG. 5 is a diagram showing a use state of the male contact 13 manufactured in the first embodiment of the method of manufacturing the male electrical contact of the electrical connector of the present invention. The female contact 18 of the electrical connector shown in FIG. 5 includes an accommodating portion having a U-shaped cross section in which an inlet portion and an intermediate portion are connected by a connecting plate portion, and curved portions that face each other are formed in the accommodating portion. The male contact 13 is inserted into the accommodating portion of the female contact 18. Since the distal end portion 14 of the male contact 13 is formed so as to face each other, it is smoothly inserted into the housing portion from the entrance of the housing portion of the female contact 18 and is inserted while pressing the curved portions facing each other. The

  The rib reinforcing portion 15 of the male contact 13 is compressed by the curved portion of the accommodating portion of the female contact 18, but the ribs 5 and 6 are formed in contact with each other, so that the female portion is not deformed by the compressive force of the curved portion. The electrical contact with the shape contact 18 can be ensured, and the strength and durability of the contact portion can be improved.

  The intermediate portion 16 following the rib reinforcing portion 15 is formed in a U-shaped cross section by connecting the upper and lower plate portions 2 and 3 with the connecting plate portion 4, and the interval between the upper and lower plate portions 2 and 3 of the intermediate portion 16 is set at the rib reinforcing portion 15. Therefore, the strength and durability of the male contact 13 as a whole are improved.

  Since the terminal part 17 following the intermediate part 16 extends linearly in a state where the upper and lower plate parts 2 and 3 are in contact with each other, the connection with the electrical connection terminal is facilitated. Moreover, when a curved part is formed in the terminal part 17, the function of the spring which a curved part presses against conductors, such as a printed circuit board, is demonstrated, and a connection with a conductor is ensured.

  6, FIG. 7 (a) (b), FIG. 8 (a) (b) is a figure which shows 2nd Embodiment of the manufacturing method of the male electrical contact of the electrical connector of this invention. The same components as those in the first embodiment are denoted by the same reference numerals.

  As shown in FIG. 6, the flat plate member 1 is formed by processing such as punching a conductive metal plate. The flat plate member 1 has a flat plate shape in which an upper plate portion 2 and a lower plate portion 3 extend in parallel and are connected by a connecting plate portion 4 at an intermediate portion between the upper and lower plate portions 2 and 3. A front rib 19 and a rear rib 20 having a predetermined length convex downward are formed by pressing in front of the connecting plate portion 4 of the upper plate portion 2. An intermediate rib 21 and a rear rib 22 having a predetermined length protruding downward are formed in front of the connecting plate portion 4 of the lower plate portion 3 by pressing.

  The front rib 19 formed on the upper plate portion 2 and the intermediate rib 21 formed on the lower plate portion 3 are different in position in the length direction, and formed on the rear rib 20 and the lower plate portion 3 formed on the upper plate portion 2. The rear ribs 22 have the same position in the length direction. The protruding heights of the front rib 19 and the intermediate rib 21 having different positions in the length direction are formed to be twice as high as the protruding heights of the rear ribs 20 and 22 having the same position in the length direction.

  FIGS. 7A and 7B are a side view and a plan view showing the next step of the second embodiment of the method for manufacturing the male electrical contact of the electrical connector of the present invention. In this step, the tip portions of the upper and lower plate portions 2 and 3 and a part of the upper and lower plate portions 2 and 3 on the front and rear sides of the connecting plate portion 4 are simultaneously bent. The tip portions of the upper and lower plate portions 2 and 3 are bent downward to form the tip bent portions 7 and 8. A part of the upper and lower plate portions 2 and 3 in front of the connecting plate portion 4 is bent obliquely upward to form the front bent portions 9 and 10. Part of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 is bent obliquely downward to form the rear bent portions 11 and 12. In the embodiment shown in the figure, the front bent portions 9 and 10 are bent obliquely upward and the rear bent portions 11 and 12 are bent obliquely downward, but may be bent at a right angle. However, when performing the bending process, the bending process at a right angle places a burden on the metal plate, and therefore an oblique bending process is desirable. Further, only one of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 may be bent. In that case, both the upper and lower plate portions 2 and 3 are bent larger than the amount of bending when bending.

  The height (bending height) between the front ends of the front bent portions 7 and 8 and the horizontal portion is made substantially the same as the height of the rear ribs 20 and 22. Positions of the upper and lower plate portions 2 and 3 extending in parallel to the rear of the rear bent portions 11 and 12 by making the bent height of the rear bent portions 11 and 12 larger than the bent height of the front bent portions 9 and 10. Is formed so as to be located at the tips of the protrusions of the rear ribs 20 and 22. The positions of the upper and lower plate portions 2 and 3 extending in parallel to the front of the front bent portions 9 and 10 are higher than the upper and lower plate portions 2 and 3 extending in parallel to the rear of the rear bent portions 11 and 12. When only one of the upper and lower plate portions 2 and 3 behind the connecting plate portion 4 is bent, the position of one of the bent plate portions is the case where both the upper and lower plate portions 2 and 3 are bent. The position is lower than the positions of the upper and lower plate portions 2 and 3.

  FIG. 8 (a) is a plan view showing the next step of the second embodiment of the method of manufacturing the male electrical contact of the electrical connector of the present invention, FIG. 7 (b) is a side view, and FIG. 7 (c). FIG. 8 is a cross-sectional view taken along line YY in FIG. In this step, the upper and lower plate portions 2 and 3 are bent downward at a right angle with the boundary line a between the connecting plate portion 4 and the upper plate portion 2 and the boundary line b between the connecting plate portion 4 and the lower plate portion 3 as folding lines.

  Through this step, the male electrical contact 13 of the electrical connector as shown in FIGS. 8A, 8B and 8C is formed. The male contact 13 of the electrical connector is a tip portion 14 where the tips of the tip bent portions 7 and 8 of the upper and lower plate portions 2 and 3 are in contact with each other. Subsequent upper and lower plate portions 2 and 3 extend in parallel, the tip of the front rib 19 having a high height is in contact with the inner surface of the lower plate portion 3, and the tip of the intermediate rib 21 is on the inner surface of the upper plate portion 2. It is arranged so that the rear ribs 20 and 22 are in contact with each other to form the rib reinforcing portion 15.

  The intermediate portion 16 formed by the upper and lower plate portions 2 and 3 connected by the connecting plate portion 4 has a cross section in which the interval between the upper and lower plate portions 2 and 3 is larger than the interval between the upper and lower plate portions 2 and 3 of the rib reinforcing portion 15. It is formed in a U shape.

  Behind the intermediate portion 16 is a terminal portion 17 in which the upper and lower plate portions 2 and 3 are in contact with and extend through the rear bent portions 11 and 12. The upper and lower plate portions 2 and 3 are bent downward at a right angle with the boundary line a between the connecting plate portion 4 and the upper plate portion 2 and the boundary line b between the connecting plate portion 4 and the lower plate portion 3 as folding lines, and then the connecting plate portion 4 When a part of the upper and lower plate parts 2 and 3 on the rear side is pressed upward or downward and a curved part is formed on a part of the upper and lower plate parts 2 and 3 on the rear side of the connecting plate part 4, A terminal portion 17 is formed on the rear side of 16 by forming a curved portion with the upper and lower plate portions 2 and 3 in contact with each other via the rear bent portions 11 and 12. FIG. 9 shows a case in which only the lower plate portion 3 behind the connecting plate portion 4 is bent at a right angle. FIG. 10 shows a case where only the lower plate portion 3 behind the connecting plate portion 4 is bent obliquely downward.

  FIG. 11 is a diagram showing a use state of the male contact 13 manufactured in the second embodiment of the method of manufacturing the male electrical contact of the electrical connector of the present invention. The female contact 18 of the electrical connector shown in FIG. 11 includes a U-shaped storage section in which an inlet section and an intermediate section are connected by a connecting plate section, and the storage section has curved sections facing each other with different positions of the center of curvature. Is formed. The male contact 13 is inserted into the accommodating portion of the female contact 18. Since the distal end portion 14 of the male contact 13 is formed so as to face each other, it is smoothly inserted into the housing portion from the entrance of the housing portion of the female contact 18 and the curved portions facing each other at different positions of the curved center of the housing portion. Is inserted while pressing.

  The rib reinforcing portion 15 of the male contact 13 is compressed by curved portions facing each other at different positions of the curved center of the accommodating portion of the female contact 18, but the front rib rib 19, intermediate rib 21, Since the rear ribs 20 and 22 are formed, it is possible to ensure electrical contact with the female contact 18 without being deformed by compressive forces at different positions in the length direction of the curved portions that are different in the center of curvature and face each other. The strength and durability of the contact portion can be improved.

  The intermediate portion 16 following the rib reinforcing portion 15 is formed in a U-shaped cross section by connecting the upper and lower plate portions 2 and 3 with the connecting plate portion 4, and the interval between the upper and lower plate portions 2 and 3 of the intermediate portion 16 is set at the rib reinforcing portion 15. Therefore, the strength and durability of the male contact 13 as a whole are improved.

  Since the terminal part 17 following the intermediate part 16 extends linearly in a state where the upper and lower plate parts 2 and 3 are in contact with each other, the connection with the electrical connection terminal is facilitated. In addition, when the curved portion is formed in the terminal portion 17 as shown in FIG. 12, the curved portion exhibits a function of a spring that presses against a conductor such as a printed circuit board, thereby ensuring connection with the conductor.

It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. (A) (b) (c) It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. (A) (b) (c) It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention.

Explanation of symbols

  1: flat plate member, 2: upper plate portion, 3: lower plate portion, 4: connecting plate portion, 5, 6: rib, 7, 8: tip bent portion, 9, 10: forward bent portion, 11, 12 : Rear bent part, 13: male contact 1, 14: tip part, 15: rib reinforcing part, 16: intermediate part, 17: terminal part, 18: female contact, 19: front rib, 20: rear rib, 21: Intermediate rib, 22: Back rib,

Claims (6)

The upper and lower plate parts extending in parallel with the connecting plate part at the middle position of the upper and lower plate parts positioned in front of the connecting plate part are pressed to the same lower side by pressing. A convex rib is formed, and the top and bottom plate portions located in front of the upper and lower plate portions and the connecting plate portion and the upper and lower plate portions located at the rear or a part of the upper and lower plate portions are bent and processed vertically. The tip of the plate part was bent downward, and a part of the upper and lower plate part located in front of the connecting plate part and a part of the upper and lower plate part or upper and lower plate part located in the rear were bent upward and bent. The position of the upper and lower plate portions behind the connecting plate portion is set to a parallel position lower than the upper upper and lower plate portions, and then the upper and lower plate portions are bent downward at a right angle with the boundary line with the intermediate connecting portion as a fold line. Manufacturing method of male electrical contact for electrical connector. For flat plate members with parallel upper and lower plate parts connected by a connecting plate part at an intermediate position, a plurality of lower ribs are formed by pressing the upper and lower plate parts located in front of the connecting plate part. And a part of the plurality of ribs formed on the upper and lower plate portions is a rib having a different protruding position in the length direction and a high protruding height, and is located on the upper and lower plate portions located on the front and the front of the upper and lower plate portions and on the rear side. Bending part of either the upper or lower plate part or the upper and lower plate parts to be bent, and bending the tip part of the upper and lower plate part downwardly, the part of the upper and lower plate part located in front of the connecting plate part and the rear A part of either the upper or lower plate portion or the upper and lower plate portions is bent upward, and the position of the upper and lower plate portions positioned behind the connection plate portion where the connection plate portion is bent is lower than the upper and lower plate portions positioned in front. Next, the upper and lower plate parts face downward with the boundary line with the intermediate connection part as the broken line Method for producing a male electrical contacts of an electrical connector, which comprises a right angle bending. The upper and lower plate parts are bent downward at a right angle with the boundary line with the intermediate connection part as a fold line, and then the upper and lower plate parts at the rear of the intermediate connection part are pressed upward or downward to form the curved part. The method of manufacturing a male electrical contact for an electrical connector according to claim 1 or 2, wherein the electrical contact is formed. Connected by a tip part where the upper and lower plate parts face each other inward, a rib reinforcing part having convex ribs facing each other inwardly on the upper and lower plate parts extending in parallel at predetermined intervals, and a connecting plate part orthogonal to the rear side And an intermediate portion having a U-shaped cross section that is wider than the parallel spacing of the front upper and lower plate portions, and a terminal portion that is located behind the intermediate portion and that extends in contact with the upper and lower plate portions via the bent portion. Male electrical contact for electrical connector. The upper and lower plate portions that face each other inward and the upper and lower plate portions that extend in parallel at a predetermined interval have a plurality of convex ribs partially protruding inward in the longitudinal direction, Ribs with different longitudinal positions are in contact with opposing plate parts, and ribs with the same length in the longitudinal direction are connected by a rib reinforcing part where the ribs are in contact with each other and a connecting plate part orthogonal to the rear, and the two front plate parts A male electrical connector for an electrical connector, comprising: an intermediate portion having a U-shaped cross section that is wider than the parallel interval; and a terminal portion that is located rearward from the intermediate portion and that extends through contact between the upper and lower plate portions. contact. 6. The male electrical contact of the electrical connector according to claim 4, wherein a curved portion is formed in a part of the terminal portion.

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