JPS6127067Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cord connecting device for connecting a cord to a mounting bracket connected to a terminal pin, a headphone speaker, or the like.

Conventionally, electroacoustic equipment, such as a jack that is inserted into a speaker jack installed on the back of a speaker, has been used.
For example, there is a method shown in FIG. 1 as a device for connecting pins and cords. That is, a bush 3' is formed by caulking and fixing one end of the cord 2 to the end of a mounting fitting 1' such as a jack pin, and molding this connection point with rubber or synthetic resin exhibiting flexibility. It was covered with. However, with this conventional product, when molding the bush 3', if the mounting bracket 1' and the conductor part of the cord 2' are molded with poor contact, the poor contact cannot be repaired again, resulting in product loss. was to occur. Furthermore, even if a disconnection occurs between the mounting bracket 1' and the cord 2' inside the bushing 3' due to long-term use, the bushing 3' must be broken and repaired, so there is no other option than to discard the product. There was no way. This is mounting bracket 1'
This itself is expensive and causes high product costs.

The present invention was made in view of the above points, and its purpose is to cover the connection point between the cord and the mounting bracket with a bushing molded from soft synthetic resin, and to further coat the outer periphery with a hard plastic bushing. By fitting an exterior tube molded from a suitable material, the deformation of the bushing can be used to cover and hold the fixed part between the cord and the mounting bracket, making it possible to easily connect the cord and the mounting bracket, and also to easily connect the cord and the mounting bracket. To provide a cord connecting device capable of easily repairing poor contact with metal fittings.

The present invention will be described below as an example in which the present invention is connected to a headphone speaker as shown in FIGS. 2 and 3.

Reference numeral 1 denotes a mounting bracket made of a thin metal plate with good conductivity. Winding tabs 1a, 1a are formed on both edges of the end of the mounting bracket 1, and both edges of the approximately middle portion of the mounting bracket 1 are formed. protrusions 1b, 1b are provided protrudingly,
Furthermore, in this embodiment, the tip of the mounting bracket 1 is formed into a flat shape so that it can be attached to the inside of a headphone (not shown) by an appropriate fixing means such as screws. By rounding and molding the tip of the mounting bracket 1 into a cylindrical shape with a closed end, or by welding the tip member formed from the same material into a cylindrical shape with a closed end using an appropriate fixing means such as welding, etc. A jack pin may also be formed by attaching the The cord 2 is fixed to the mounting bracket 1 by being tightened by the clamping pieces 1a, 1a of the mounting bracket 1, and one end of the cord is branched and connected to a speaker in a headphone (not shown). be done. Reference numeral 3 denotes a bushing molded from a soft synthetic resin such as rubber, and this bushing 3 fits and covers the outer periphery of the fixed portion between the cord 2 and the mounting bracket 1. The rear part of the bush 3 has a small diameter and has a large number of notches _3a1 on its outer periphery so that it can be easily bent together with the cord 2 to form a small diameter neck part 3a. 3b is an engagement recess provided inside the bush 3 at a position corresponding to the projections 1b, 1b, and the bush 3 is attached by engaging the projections 1b, 1b with the engagement recesses 3b, 3b. This prevents the metal fitting 1 from sliding in the axial direction. Reference numeral 4 denotes an exterior tube molded from metal or hard synthetic resin, and this exterior tube 4 deforms the bush 3 by being fitted around the outer circumference of the main body portion of the bush 3, and also tightens the bush 3 in the axial direction. The fixing portion between the cord 2 and the mounting bracket 1 is held and fixed by applying force. 3c is a protrusion formed on the outer periphery of the bush 3, and these several protrusions 3c are used to reduce friction with the bush 3 made of soft synthetic resin when fitting the outer pipe 4 to the bush 3. This makes it easier to fit the outer tube 4 into the bush 3.

The present invention consists of the above-mentioned configuration, and the mounting bracket 1
To assemble the cord 2' to the cord 2', use the winding pieces 1a, 1a formed at the end of the mounting bracket 1
The branched ends of the cord are tightened, and then the bushes 3 made of soft synthetic resin such as rubber are fitted and covered to the fixed parts of the mounting bracket 1 and the cord 2. The projections 1b, 1b engage with the engagement recesses 3b, 3b formed on the inner periphery of the bush 3, so that the bush 3 is held against the mounting bracket 1.
will no longer move in the axial direction, and the mounting bracket 1 will no longer come off from the bush 3. Furthermore, when the outer tube 4 made of hard plastic or metal is fitted to the outer periphery of the bush 3, the bush 3 made of soft synthetic resin such as rubber deforms and exerts a tightening action in the axial direction. In order to do this, the fixing portions of the mounting bracket 1 and the cord 2 are tightened and fixed by the bush 3, thereby attaching the cord 2' to the mounting bracket 1 and assembling and fixing the cord 2'. Exterior pipe 4
When fitting the bushing 3 into the bushing 3, since a large number of protrusions 3c are formed on the outer periphery of the bushing 3,
Since only this protruding portion 3c contacts the inner circumference of the outer tube 4 and rubs against the outer tube 4, the outer tube 4 can be smoothly fitted and covered with the outer circumference of the bush 3. Further, the mounting bracket 1 is fixed to the inside of the headphone by screwing or the like, and the conductor portion on one side of the cord 2 is fixed to the inside of the headphone by screwing or the like.

In addition, if the installation of the cord 2 to the mounting bracket 1 becomes loose after long-term use, or if the mounting bracket 1 is used as a jack pin (not shown), resulting in poor electrical contact between the mounting bracket 1 and the cord 2. To disassemble it when necessary, first remove the outer tube 4 from the bush 3, then pull out the bush 3 from its mounting bracket 1, and then use the cord 2
One end is re-wrapped, the bushing 3 is again fitted to the fixed part of the cord 2 and the mounting bracket 1 to cover it, and the outer tube 4 is fitted and covered to the outer periphery of the bushing 3 to assemble.

As mentioned above, the present invention covers the connection point between the cord and the mounting bracket with a bushing molded from soft synthetic resin, and furthermore, by fitting an exterior tube molded from a hard material to the outer periphery of the bushing. By using the deformation of the bushing to cover and hold the fixing part between the cord and the fitting, the cord and the fitting can be easily connected, and a poor contact between the cord and the fitting can be easily repaired.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing a conventional jack pin;
FIG. 2 is an exploded perspective view showing an embodiment of the present invention, and FIG. 3 is a partially cutaway sectional view showing the assembled state. 1... Mounting bracket, 1a... Winding piece, 1b...
Protrusion, 2... code, 3... button, 3b...
Engagement recess, 4...exterior pipe.

Claims (1)

[Scope of utility model registration request] One end of the cord is fixed to the winding piece provided on the mounting bracket, and the fixed part of the cord is fitted and covered with a bush made of soft synthetic resin such as rubber, and is also formed on the side edge of the mounting bracket. The protrusion is engaged with an engagement recess provided inside the bush, and an exterior tube made of a hard material is fitted to the outer periphery of the bush, thereby deforming the bush and moving the bush in its axial direction. A cord connecting device characterized in that a fixing part between the mounting bracket and the cord is held and fixed by tightening.