JPH0242385Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a soldering iron, and more specifically, to a soldering iron having a mechanism for appropriately feeding thread solder toward a soldering iron tip.

[Technical background of the invention]

Various soldering irons having solder wire delivery mechanisms have been proposed in the past, but most of them employ a roller type. As an example, refer to Japanese Utility Model Application Publication No. 49-89329, in which a grooved roll and a ratchet are arranged facing each other in a pistol-shaped grip, and a thread of solder is passed between them. There is. However, this method requires many parts such as the ratchet drive pawl, anti-reverse pawl, and supporting parts thereof, and must be incorporated into the grip, which inevitably increases costs. Furthermore, it is easy to break down, and it is not easy to repair it. moreover,
Such a roller-type feeding mechanism has an essential drawback in that it tends to slip between itself and the solder wire and lacks reliability.

[Purpose of invention]

This idea was made in view of the above-mentioned drawbacks of the conventional technology, and its purpose was to have a simple structure,
To provide a soldering iron having an easy-to-use thread solder feeding mechanism capable of surely sending out thread solder.

〔Example〕

Hereinafter, this invention will be described in detail with reference to embodiments shown in the accompanying drawings.

Referring to FIGS. 1 and 2, this soldering iron has a grip 1 formed into a rod shape, for example, and a soldering iron tip 3 heated by an electric heater 2 is attached to one end of the grip 1. installed. Further, a preferably flexible guide pipe 4 made of aluminum, for example, is attached to one end of the grip 1 and extends toward the iron tip 3, and a solder thread 5 is wound on the other end of the grip 1. A reel holding member 7 that detachably holds the spun reel 6 is provided. According to this embodiment, the guide pipe 4 is screwed to the grip 1 via a presser plate 8, as shown in FIG. 3, so that it can be easily attached and detached as necessary.
The reel holding member 7 is composed of a support arm 9 erected at the other end of the grip 1, and a rotation support shaft 10 horizontally attached to the upper end of the support arm 9. reel 6
is removably inserted. Note that reference numeral 11 is an electric cord that energizes the electric heater 2.

A guide groove 13 is formed in the grip 1 to guide the solder thread 5 unwound from the reel 6 to the guide pipe 4. In this case, the reel 6 of the guide groove 13
As shown in FIG. 4, the side portion is a deep groove 13a that is deeper than the diameter of the solder thread 5.
The remaining portion on the other side of the guide pipe 4 forms a shallow groove 13b having a predetermined depth shallower than the diameter of the solder thread 5 (see FIG. 5). That is, in this shallow groove 13b, a portion of the solder thread 5 is exposed at the upper part of the groove.

A cover plate 14 that closes the upper part of the deep groove 13a is removably attached to the deep groove 13a with screws or the like, but in this example, one end thereof extends toward the shallow groove 13b, It serves as a leaf spring-like stopper pawl 14a that presses down the exposed solder thread 5 and prevents it from returning. Note that this stopper claw 14a may be configured as a separate member from the lid body 14.

On the other hand, the leaf spring 1 is located above the shallow groove 13b.
A solder feeding means consisting of 5 is provided. In this embodiment, the leaf spring 15 is bent into a hairpin shape at a predetermined portion as shown in the figure, and one end 15a of the leaf spring 15 is bent into the grip 1 along with the presser plate 8.
is fixed to one end of the That is, the leaf spring 15 is warped once from one end 15a toward the shallow groove 13b, and then reaches the other end 15b at a predetermined location.
The other end 15b is bent into a hairpin shape so as to face the opposite side, and the other end 15b is held at a height position where it does not come into contact with the solder wire 5 in an unloaded state.

In the above-described configuration, when the leaf spring 15 is pushed in the direction of arrow A in FIG. Since it slides as shown by the imaginary line, the thread solder 5 passes through the guide pipe 4 and is supplied to the iron tip 3. In this case, since a part of the solder thread 5 is exposed above the shallow groove 13b, there is no risk of it being cut off at the other end 15b of the leaf spring 15, and there is no possibility of lateral displacement in the shallow groove 13b. It will be introduced into the guide pipe 4 in a straight state. On the other hand, when the pressing force of the leaf spring 15 is released, the leaf spring 15 returns to its original state, but since the thread solder 5 is held down by the stopper pawl 14a, it may not return as the leaf spring 15 returns. Never.

FIG. 6 shows a modified embodiment of this invention. That is, in this embodiment, the grip 1 is pistol-shaped, and the same parts as in the above embodiment are given the same reference numerals and their explanations are omitted. The thread solder 5 can be supplied to the soldering iron tip 3 by pulling the leaf spring 15 with, for example, the index finger while holding the grip 1. In this case, the feeding amount can be adjusted by the pulling force of the leaf spring 15. All you have to do is adjust the amount.

In each of the above embodiments, a leaf spring 15 bent into a hairpin shape is used as the solder feeding means, but as shown in FIG. 15' may also be used. However, in this case, one end 15'a is fixed to the stopper claw 14a side, and the other end 15'b is oriented to the guide pipe 4 side.

〔effect〕

As is clear from the above description of the embodiment, this invention uses a plate spring as the solder feeding means, so the configuration is extremely simple, and the wire solder can be reliably applied just by pushing the plate spring. To provide an easy-to-use soldering iron capable of feeding a predetermined amount at a low cost.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the soldering iron according to this invention, Fig. 2 is a plan view of the embodiment, and Fig. 3 is a side view showing an embodiment of the soldering iron according to this invention.
Figures to Figures 5 and 5 are respectively -
each cross-sectional view along the line, - line and - line,
FIG. 6 is a side view showing a modified embodiment of this invention;
FIG. 7 is a side view showing another embodiment of the leaf spring applied to the soldering iron of this invention. In the figure, 1 is a grip, 2 is an electric heater, 3 is a soldering iron tip, 4 is a guide pipe, 5 is a solder thread, 6 is a reel, 7 is a reel holding member, 8 is a presser plate, 11 is an electric cord, 13 is a guide groove, 14 is a cover plate, 15
is a leaf spring.

Claims (1)

[Claims for Utility Model Registration] (1) A rod-shaped or pistol-shaped grip, a tip portion attached to one end of the grip and heated by an electric heater, and a tip portion from the grip to the tip portion. A soldering iron has a guide pipe extending nearby, and a soldering iron thread wound around a reel is introduced into the guide pipe along the grip and appropriately supplied to the soldering iron tip. A surface of the grip through which the solder thread passes has a shallow groove for a thread solder guide having a depth shorter than the diameter of the solder thread and extending in the moving direction of the solder thread, It extends in the direction of movement of the solder, one end thereof is located on the shallow groove, the other end is fixed on the surface of the grip, and a curved part is formed between the one end and the other end. a flat spring, the one end of which is held in a non-contact state with the solder wire when under no load, and when the curved portion is pressed in the surface direction of the grip, the solder wire located in the shallow groove; The soldering iron is characterized in that the one end portion elastically engages with the solder thread so as to send out the solder wire in the direction of the soldering iron tip. (2) Utility Model Registration The soldering iron according to claim 1, wherein the curved portion is formed in a hairpin shape such that the one end is located on the other end side. (3) The soldering iron according to claim 1, wherein the curved portion is formed in a substantially angular shape.