JPH0411013Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to pliers for bending lead wires of electronic components such as light emitting diodes and capacitors connected to printed circuit boards used in electronic devices.

(Prior Art) Conventionally, as shown in FIG. 9, pliers for bending lead wires of electronic components have a pair of gripping parts 30,
31, a concave portion 33 is formed in the width direction on one opposing surface 32 of the gripping portions 30, 31, and a convex portion 35 is formed in the width direction on the other opposing surface 34, and this uneven portion 33,
35 is formed so as to engage when the gripping portions 30, 31 are closed. Further, in FIG. 6, A is a printed circuit board used for electronic equipment, B is a light emitting diode as an electronic equipment connected to the printed circuit board A, and this light emitting diode B has a main body C covered with a light emitting element, The light emitting element is attached to the printed circuit board A.
It is composed of two lead wires E, E that are connected to the circuit wired above through connection through holes D, D.

The pliers are used to connect the light emitting diode B to the printed circuit board A.
Hold the lead wires E, E in your mouth, close the parts 30, 31 and press the uneven parts 33, 35 to bend the lead wires E, E, and connect the bent parts to the through holes D, D of the substrate A. It is used to temporarily fix the light emitting diode B to the substrate A by stopping it.

(Problems to be Solved by the Invention) In the conventional method, one of the opposing surfaces 32 of the gripping portions 30 and 31 has a concave portion 33, and the other opposing surface 34 has a concave portion 33.
Since the convex portion 35 is formed on the side, when the two lead wires E and E of the light emitting diode B are bent at the same time, the lead wires E and E are bent in the same direction as shown in FIG. When the light emitting diode B with bent lead wires E and E is temporarily fixed to the printed circuit board A, the light emitting diode B will be tilted, making it difficult to connect the lead wires E and E by soldering. Therefore, in order to prevent this drawback, the bending directions of the lead wires E and E can be reversed as shown in Fig. 7, but in this case, the lead wires E and E must be bent separately. First, the number of man-hours for bending is 2.
In addition, since it is difficult to form the lead wires E and E at the same position in the longitudinal direction, the balance cannot be maintained and the lead wires end up being tilted.

The present invention was devised to solve the above problems, and its purpose is to bend the lead wires of electronic components in which two lead wires can be bent in different directions at the same time and at the same position in the longitudinal direction. To provide pliers for use.

(Means for Solving the Problems) The specific means taken by the present invention to achieve the above-mentioned object is characterized by a pivot having an axis perpendicular to the front-rear direction in the middle of the front-rear direction. It also has a pair of gripping parts in the front part whose opposing surfaces are brought into contact and separated by rotational operation around the pivot, and the opposing surfaces of the gripping parts are provided with a pair of gripping parts that are connected to each other in order to bend the lead wires of electronic components. In a pair of pliers for bending lead wires of electronic components that have engaging concave and convex portions, in order to bend two lead wires at the same position in the longitudinal direction, a concave portion and a convex portion are formed on the opposing surfaces of one of the gripping portions. The convex portion that engages with the concave portion of one of the jaw portions and the concave portion that engages with the convex portion of one of the jaw portions are arranged side by side in a direction parallel to the axis of the pivot, and a convex portion that engages with the concave portion of one of the jaw portions on the opposing surface of the other grip portion. a position setting member having a contact portion located on the front side between the uneven portions of the gripping portion and abutting against the main body of the electronic component; The point is that a regulating member is provided between the pivot shaft and the regulating member that can be positioned between the two lead wires to be bent.

(Function) Hold the two lead wires E and E of the electronic component B between the gripping parts 3 and the contact part 14 of the position setting member 12.
When the electronic component B is inserted between the facing surfaces 6 and 7 of the electronic component B, the main body C of the electronic component B comes into contact with the contact portion 14 to set the position of the electronic component B, and there is a gap between the two lead wires E and E. The regulating member 18 is positioned to regulate the swinging of the lead wires E, E around the electronic component body C. In this state, when the gripping parts 3 and 4 are rotated around the axis 5 and pressed together to pinch the lead wire E, one of the gripping parts 3
uneven parts 8 and 9 arranged in parallel on the opposing surface 6 of the other gripping part 4; and uneven parts 8' and 9 arranged in parallel on the opposing surface 7 of the other gripping part 4;
9', the two lead wires E and E are simultaneously bent in different directions and at the same position in the longitudinal direction.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes pliers, which are used for bending lead wires E, E of a light emitting diode B as an electronic component, and include a pair of gripping handles 2, 2 facing each other, a longitudinal gripping portion 3, 4, the middle portions of which are crossed or superposed and pivotally connected by a pivot 5, and a grip handle 2,
The gripping parts 3 and 4 are opened and closed by opening and closing operations around the axis 5 of 2.
is opened and closed so that the opposing surfaces 6 and 7 of the gripping portions 3 and 4 are brought into pressure contact and separated.

On the front sides of the opposing surfaces 6, 7 of the gripping parts 3, 4, there are recesses 8 in the shape of circular arcs at the bottom, which are arranged opposite to each other and engage with each other when the gripping parts 3, 4 are closed.
8' and semi-cylindrical convex parts 9, 9' are formed.
On the opposing surface 6 of one of the gripping parts 3, a recess 8 and a protrusion 9 are formed at the same position in the longitudinal direction in the width direction, that is, the pivot 5
protrusions 9' that are arranged parallel to each other in a direction parallel to the axis of the two grippers 4 and that engage with the recess 8 on the opposing surface 7 of the other gripper 4.
and a recess 8' that engages with the projection 9. Therefore, the two lead wires E and E are arranged between the uneven parts 8 and 9' of the gripping parts 3 and 4, and between the uneven parts 8' and 9, respectively, and the gripping parts 3 and 4 are pressed against each other to connect the leads. When the wire E is squeezed, the lead wires E and E are simultaneously bent in different directions and at the same position in the longitudinal direction. Further, the outer surface 10 of one of the gripping portions 3 is a flat surface substantially parallel to the opposing surface 6, and a position setting member 12 is provided on this outer surface 10 via a longitudinally shaped mounting plate 11 along the outer surface 10. There is. This position setting member 12 is made of a hard material such as steel, projects perpendicularly from the tip of the mounting plate 11, and is located on the front side between the uneven parts 8 and 9 of the gripping part 3. By locating the two lead wires E and E so as to sandwich 12, the two lead wires E and E can be distributed between the uneven parts 8 and 9' and between the uneven parts 8' and 9. ing. Further, the base side of the position setting member 12 is wide, and the distal end side is narrower than the gap between the lead wires E, E. The width is not particularly limited, but is usually about 1.5 mm. Further, a step portion 13 that projects forward and forms a step L is formed at the tip of the position setting portion 12, and the front end surface of the step portion 13 is a contact portion 14 that comes into contact with the main body C of the light emitting diode B. It's summery.

Further, this stepped portion 13 is provided at a position where it can be positioned between the opposing surfaces 6 and 7 of the gripping portions 3 and 4 when the gripping portions 3 and 4 are opened. Therefore, as shown in FIG. 3, when the light emitting diode 13 is placed so as to straddle the position setting member 12 with the grips 3 and 4 open, the light emitting diode 13 comes into contact with the flange F of the light emitting diode main body C and emits light. The distance between the diode main body C and the uneven parts 8, 9 and 8', 9' can be set. Furthermore, step part 1
3 is the concave portions 8, 8' and the convex portion 9 of the gripping portions 3, 4;
When the lead wires E and E are held between the
It is provided so as to be located on the distal side from the end G in the longitudinal distal direction. Therefore, as shown in FIG. 4, when the gripping parts 3 and 4 are closed, the light emitting diode main body C and the contact part 14 of the position setting member 12 move relative to each other, and the light emitting diode main body C moves to the contact part 14.
A gap 21 is formed at the base of the lead wires E and E of the light emitting diode body C. Therefore, when bending the lead wires E, E by pressing them between the uneven parts 8, 9 and 8', 9', the lead wires E, E,
The above step l is caused by the fact that the light emitting diode main body C is slightly pulled by the lead wires E and is displaced in the longitudinal pulling direction of the lead wires E and E because E is bent.
permitted by. Incidentally, the dimension of this step l should be at least equal to the tension caused by bending the lead wires E, E. This step l serves as a tolerance means.

A long hole 16 is formed in the mounting plate 11 in the longitudinal direction, and the mounting plate 11 is screwed onto the outer surface 10 of one of the gripping parts 3 with a screw 17 through the long hole 16. By loosening 17, the distance between the contact portion 14 and the uneven portions 8, 9, 8', 9' can be adjusted in the longitudinal direction of the lead wires E, E.

Reference numeral 18 denotes a roll pin (regulating member), one end of which is fitted into a through hole 19 formed midway in the longitudinal direction of the opposing surface 6 of one of the gripping portions 3 and at the center in the width direction, and the other end thereof It can be inserted into and removed from an insertion hole 20 formed on the opposing surface 7 of the gripping part 4.
This roll pin 18 is located on the tip side between the lead wires E and E when the light emitting diode B is arranged.
Swinging around the light emitting diode body C is restricted.

Reference numeral 21 denotes a coil spring, which is compressed and interposed between the grip handles 2 and 2, and biases the grip portions 3 and 4 in the expanding direction.

In the above embodiment, the position setting member 12 is formed of a plate spring as shown in FIG. This flexibility may be used as a permitting means.In short, the permitting means allows the light emitting diode main body C to be displaced in the longitudinal pulling direction of the lead wire E by bending the lead wires E, E. It's good to have.

Further, the position setting member 12 may be fixed to the gripping parts 3 and 4.

(Effect of the invention) The present invention has a concave portion and a convex portion arranged side by side in a direction parallel to the axis of the pivot on the opposing surface of one gripping portion, and also provides the recessed portion and the convex portion in parallel to the opposing surface of the other gripping portion. By arranging the convex portion that engages with the concave portion and the concave portion that engages with the convex portion of one of the gripping portions side by side, two lead wires of an electronic component can be folded simultaneously at the same position in the longitudinal direction but in different directions. I can sing. In addition, if the uneven parts are arranged in parallel in a direction perpendicular to the axis of the pivot,
When bending two lead wires by pressing the grips together, the lead wire closer to the pivot is bent first, then the lead wire farther from the pivot is bent, and at that time, The lead wires closer to each other will be squeezed even more, which will cause the lead wires to bend incorrectly.
Although consideration must be given to this, the concavo-convex portions of the present invention are arranged parallel to the axis of the pivot and are formed at the same distance from the pivot, so there is no problem as described above. The lead wires of a book can be bent in the same way at the same time.

In addition, the bending position of the lead wires can be set at a constant position using the position setting member, and by arranging the position setting member between the two lead wires, each lead wire is placed so that the lead wires are facing each other in the gripping part. and can be positioned between the concave and convex portions that engage with each other.

Moreover, the swinging of the lead wire around the main body of the electronic component can be restricted by the regulating member.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a partially sectional side view of the main part, FIG. 2 is a perspective view, and FIGS. 3 and 4 are operation explanatory views. Fig. 5 is a side view showing a modified example, Fig. 6 is a side view of the lead wire connected to the printed circuit board, Figs. 7 and 8 are illustrations of the bent state of the lead wire, and Fig. 9 is the conventional example. FIG. 1... Pliers, 2... Grip handle, 3, 4... Gripping portion, 6, 7... Opposing surface, 8... Concave portion, 9... Convex portion.

Claims (1)

[Claims for Utility Model Registration] A pivot shaft having an axis perpendicular to the front-back direction is provided in the middle part in the front-rear direction, and opposing surfaces are pressed into and separated from each other by rotating the front part about the pivot shaft. In the pliers for bending lead wires of electronic components, the pair of gripping portions are provided with a pair of gripping portions, and the opposing surfaces of the gripping portions are formed with uneven portions that engage with each other to bend the lead wires of electronic components. In order to bend the wire at the same position in the longitudinal direction, a concave part and a convex part are arranged parallel to the axis of the pivot on the opposing surface of one gripping part, and one A convex portion that engages with the concave portion of the gripping portion and a recessed portion that engages with the convex portion of one of the gripping portions are arranged side by side, and an electronic device is provided in the one gripping portion on the front side between the concave and convex portions of the gripping portion. A position setting member having a contact portion that contacts the main body of the component is provided, and a regulating member that can be located between the two lead wires to be bent is provided between the uneven portion of the grip portion and the pivot shaft. Pliers for bending lead wires of electronic components.