JPS6130319Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a terminal device that connects and fixes lead wires.It has a simple structure that allows for easy temporary fixing of lead wires, and it also firmly connects and fixes it with a brazing material such as solder. It has been made possible.

Generally, in this type of terminal device, an engagement hole is formed at the tip of a flat terminal piece, and the tip of a lead wire is inserted through this engagement hole and is temporarily wound around the terminal piece. After fixing, the tip of the lead wire is fixed to the terminal piece using a brazing material such as solder.

However, with the above configuration, when temporarily fixing the lead wire, it is necessary to aim and insert the lead wire into the engagement hole of the terminal piece from the distal end side, and this operation is complicated. If the tip of the lead wire is not sufficiently wrapped around the terminal piece after it is inserted into the hole, the temporary fixation will not be secure, so the tip of the lead wire may inadvertently engage when brazing and fixing. It has the disadvantage that it falls out of the hole and the work has to be done again.

This invention eliminates the above-mentioned drawbacks, and examples will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an example of a terminal device according to this invention, in which 1 is a main body, 2 is a flat terminal piece protruding from the main body, and a tip 2a of this terminal piece 2 has a
An engagement hole 4 for locking the tip 3a of the lead wire 3 is formed, and a cutout 5 for a lead wire insertion guide is formed from the tip surface 2b to the engagement hole 4. The tip portion 2a is configured in a bifurcated shape. A winding recess 7 for winding the tip end 3a of the lead wire 3 is formed in each outer end surface 6a of both the branch pieces 6, 6 of the bifurcated tip 2a, and the above-mentioned both supports are formed. The pieces 6, 6 are elastically deformed inwardly when the tip end 3a of the lead wire 3 is wound between the recesses 7, 7 and the recesses 7, 7 receive winding force. , is set so as to clamp the lead wire tip 3a inside this engagement hole 4.

That is, in the above configuration, the tip end 3a of the lead wire 3 is moved in the horizontal direction (in the direction of arrow a) and guided to the engagement hole 4 by the cutout 5.
Then, the tip end 3a of the lead wire 3 is wound so as to straddle the recesses 7 of both the branch pieces 6, 6, as shown in FIG. Due to the tightening force generated by this winding, the two branch pieces 6, 6 are elastically deformed inwardly (in the direction of arrow b) as shown in FIG. 3, so that the tip end 3a of the lead wire 3 It is clamped into the engagement hole 4 and temporarily fixed.

In this way, the tip 3a of the lead wire 3 can be moved in the horizontal direction and locked onto the terminal piece 2 side, which eliminates the trouble of having to insert it into the engagement hole as in the conventional case. When the two branches 6, 6 of the forked tip 2a are elastically deformed by the winding force of the tip 3a of the lead wire 3, the reaction force is applied to the tip 3a of the lead wire 3, and The tip portion 3a of the fastened lead wire 3 does not come off carelessly from the terminal piece 2, and therefore the brazing work becomes easier and the lead wire 3 is reliably connected.

Note that the lead wire winding recesses 7, 7 formed in the outer end surfaces 6a of the two branch pieces 6, 6 are positioned slightly shifted from the engagement hole 4 toward the tip side of the terminal piece 2. The reason for this is that the two branch pieces 6, 6 can be easily elastically deformed when the tip end 3a of the lead wire 3 is wound.

As mentioned above, in this invention, the tip of the terminal piece is configured in a bifurcated shape, and the winding force when winding the tip of the lead wire is used to clamp the tip between the two branches of the tip. It is possible to provide a terminal device in which the temporary fixing work of the lead wire is simplified and the lead wire can be firmly connected and fixed to the terminal piece.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a terminal device according to this invention, FIG. 2 is a side view for explaining the attachment of a lead wire, and FIG. 3 is an explanatory view of the same operation. 2...Terminal piece, 2a...2-pronged tip, 2b...
... Tip surface, 3 ... Lead wire, 3 ... Lead wire tip, 4 ... Engagement hole, 5 ... Notch, 6 ... Branch piece, 6a ... Outer end surface, 7 ... Recess.

Claims (1)

[Scope of utility model registration request] A portion from the engagement hole 4 formed in the tip 2a of the flat terminal piece 2 to the tip surface 2b is cut out to form the tip 2a into a bifurcated shape, and both branch pieces of the bifurcated tip 2a are cut out. The tip portion 3a of the lead wire 3 inserted into the engagement hole 4 on each outer end surface 6a of 6, 6
A recess 7 is formed around which the lead wire 3 is wound, and the winding force of the tip 3a of the lead wire 3 wound in the recess 7 causes the above-mentioned support pieces 6, 6 to be elastically deformed inwardly. A terminal device in which the tip portion 3a is clamped between these two supporting pieces 6,6.