JPH0327723Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to an improvement of tweezers used in soldering work, and more particularly, to an improved tweezers for soldering work that can be easily used with solder. It is something.

<Technical background of the invention and its problems> When performing soldering work using conventional tweezers while holding small items such as chip capacitors between them, the following work process is used. That is, first, hold the solder in your left hand and a soldering iron in your right hand, hold the solder at the location to be soldered, apply the soldering iron to apply a small amount of solder. After that, remove the solder from your left hand, transfer it to the tweezers, hold the small item to be soldered with the tweezers, bring it to the place to be soldered, and melt the solder that was applied earlier.
Temporarily attach the small items to be soldered. Next, remove the tweezers from your left hand, switch to the solder, bring the solder to the area to be soldered, apply the desired amount of solder, etc., and work by switching between the solder and the tweezers with your left hand. It was necessary to do this.

Therefore, when soldering small items using conventional tweezers, it is necessary to change the solder and tweezers each time, which does not improve work efficiency and causes fatigue for the operator.

<Purpose of the invention> The present invention solves the above problems, eliminates the need to change the solder and tweezers every time, enables continuous work, and improves the efficiency of soldering work.
Furthermore, the purpose is to provide tweezers for soldering work that reduce worker fatigue.
In order to achieve this purpose, the soldering work tweezers of the present invention include a tweezers body, a guide pipe for passing the thread solder attached to one side of the outside of the tweezers body, and a guide pipe attached to one side of the outside of the tweezers body, and a guide pipe attached to the outside of the other side of the tweezers body. This configuration provides a soldering work tweezers that facilitates the use of the tweezers and soldering.

<Embodiment of the invention> Hereinafter, an embodiment of the invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a tweezers main body made of an elastic metal such as stainless steel, and a solder wire is attached to the tip and rear part of one outer side (upper part of the main body) 1A of the tweezers main body 1. Guide pipes 2A and 2B made of, for example, hard vinyl chloride, which can be inserted through the guide pipes 2A and 2B, are fixed to approximately the center in the width direction of the outer side 1A on one side with an adhesive such as cyanoacrylate.

Reference numeral 3 denotes a handle member, and the handle member 3 is fixed to the other side (lower part of the main body) 1B of the tweezers main body 1 at a slightly rear part of the center with an adhesive such as cyanoacrylate adhesive. The material of the handle member 3 is wood or hard vinyl chloride, and the corners are rounded to make it easier to hold in the hand.

4 is a solder thread, which is passed through the holes of the guide pipes 2A and 2B, one end 4A of which is located near the tip of the tweezers body 1, and the other end of the solder thread 4 is located near the tip of the tweezers body 1; The end of one side 4B is connected to a solder wrap (not shown).

FIG. 2 is a plan view of one embodiment of the present invention shown in FIG. 1, viewed from the handle member 3 side. It shows a state where it is fixed in the direction.

Figure 3 is a plan view of a large-scale integrated circuit LSI.
Now, between terminals 5A and 5B of this LSI5 and terminal 5
The soldering operation using the above-mentioned tweezers according to the present invention will be explained by taking as an example the case where the chip capacitor 6 is soldered between C and 5D.

FIGS. 4a to 4d are diagrams for explaining the soldering procedure.

Next, the soldering operation will be explained with reference to FIGS. 4a to 4d. First, the chip capacitor 6 is placed on a preheating plate and preheated (not shown). next
Set LSI 5 on a jig (not shown). Next, hold the tweezers 1 according to the present invention with the solder thread 4 in your left hand, and hold the heated soldering iron 7 in your right hand to solder the terminals 5A (or 5C) of the LSI 5.
Solder plating 8 is applied to the top of the board (see Figure 4a).
Next, use the tip of the tweezers 1 to sandwich the chip capacitor 6 placed on the preheating plate and hold it at a predetermined position where the terminals 5A and 5B of the LSI 5 will be soldered, and apply the soldering iron 7 to the chip capacitor 6. Perform temporary fixing 9 (see Fig. 4b). Next, solder 10 the pad on the side opposite to the position where the chip capacitor 6 was temporarily fixed (see Fig. 4c), and then solder 11 the pad on the side where the chip capacitor 6 was temporarily fixed (see Figure 4c). 4d), the series of soldering operations is completed.

To use the tweezers 1 according to the present invention, place the handle member 3 on the palm of your left hand and hold the little finger, ring finger,
Grip the handle member 3 with the three fingers of the middle finger, and pinch the small item such as the chip capacitor 6 by operating the thumb and index finger. The solder wire 4 is then operated by pushing the X portion shown in FIG. 1 in the direction of the arrow with the thumb to feed the solder wire 4 to the tip of the tweezers 1.

A comparison of the soldering work process when using the tweezers according to the present invention and when using conventional tweezers is as follows.

When using conventional tweezers: Hold the solder wire 4 in your left hand and solder the terminal 5A of the LSI 5.

Switch the solder wire 4 in your left hand to tweezers and temporarily fix the chip capacitor 6.

Switch the tweezers in your left hand to the thread solder 4 and solder one side of the chip capacitor 6, then solder the other side of the chip capacitor 6.

On the other hand, when using the tweezers according to the present invention, hold the tweezers 1 in your left hand and connect the terminal 5A of the LSI 5.
Solder plating. Next, use the tweezers 1 held in your left hand to pinch and temporarily secure the chip capacitor 6, and send the thread solder 4 with the thumb of your left hand holding the tweezers 1 to solder one side of the chip capacitor 6. Solder the other side.

As described above, when the tweezers 1 according to the present invention are used, the process of changing to tweezers and wire solder, which is required when using conventional tweezers, is eliminated.

When the chip capacitor 6 was soldered to the LSI 5 using conventional tweezers, only 180 chip capacitors 6 could be soldered per hour. When the chip capacitors 6 are soldered to each other, it becomes possible to solder 350 chip capacitors 6 per hour, and the efficiency can be improved by about 1.9 times.

FIG. 5 is a perspective view showing the shape of the tips of the tweezers bodies 1A, 1B according to an embodiment of the present invention. It is made to be easy to hold.

<Effects of the invention> As described above, the present invention makes it possible to solder small items by providing a guide pipe for passing solder thread on one side of the tweezers body, and a handle member on the other side of the tweezers body. In this case, it is possible to omit the work of changing the tweezers and solder wire, which is required when using conventional tweezers, and it is possible to significantly improve work efficiency and reduce operator fatigue.

Further, if a stepped portion is provided inside the tip of the tweezers, small items such as chip capacitors can be easily caught, and the practical effect will be great.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing the configuration of an embodiment of the present invention, Fig. 2 is a plan view of the embodiment of the invention shown in Fig. 1, viewed from the handle member side, and Fig. 3 is a perspective view showing the configuration of an embodiment of the present invention. A plan view of an LSI and a chip capacitor as examples of objects to be soldered, FIGS. 4a to 4d are diagrams for explaining the soldering procedure, and FIG. 5 is a shape of the tip of the tweezers body according to an embodiment of the present invention. FIG. 1...Tweezers body, 1A...Tweezers upper part (one side),
1B... lower part of main body (on the other side), 2A, 2B... guide pipe, 3... handle member, 4... thread solder.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A tweezers body, a guide pipe for passing solder thread attached to one side of the outside of the tweezers body, and a handle member attached to the vicinity of the center of the other side of the outside of the tweezers body. A tweezers for soldering work characterized by the following. (2) The tweezers for soldering work according to claim 1, wherein the guide pipe is attached to the tip and the rear of one outer side of the tweezers body, respectively. (3) The tweezers for soldering work according to claim 1 of the utility model registration, characterized in that the tweezers main body is provided with a stepped portion on the inside of its tip.