JPS6016152Y2 - Headphone cord connection mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the connecting portion between a unit section and a cord in a headphone.

As shown in Fig. 1, the conventional connection structure between this type of unit part and the cord is that two locking pieces CI and C2 protrude from a plug B provided at the end of the cord A. After inserting both the locking pieces C1 and C2 into the holes El and E2 formed in the unit part, respectively, twist the ends of the locking pieces C1 and C2 protruding from the holes El and E2 to attach the cord A to the unit. The lead wire A.1 is connected to the unit part by soldering.

However, with this structure, the cord A is fixed to the unit by twisting the locking pieces CI and C2, which makes the fixing work troublesome. The pieces CI and C2 are returned to their original positions, but at this time the locking pieces C1 and
There is a risk that C2 will be cut and it may not be possible to use it again.

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned drawbacks and provides a headphone cord connection mechanism that allows the cord and unit to be easily fixed and removed.

Hereinafter, the present invention will be described in detail with reference to illustrated embodiments.
The figure is a perspective view of the cord connection mechanism according to the present invention before fixing.
FIG. 4 shows a sectional view of the main part when the same is fixed.

In the figure, 1 is a cord, 2 is a resin molded plug,
3a and 3b are lead wires protruding from the front surface of the plug 2 in the insertion direction.

Reference numeral 4 represents a headphone unit, and only one unit is shown in the drawing.

Reference numeral 5 denotes a housing, and a recess 6 is formed in the side surface of the housing 5 to receive the front part of the plug.

In the back wall 1 of the recess 6, insertion holes for lead wires 3a and 3b protruding from the plug 2 are formed.

Further, a locking piece 8 projects horizontally outward from the center of the back wall 7, and a square-shaped locking piece 9 is formed at the front end of the locking piece 8. ing.

The locking piece 8 is located at the center of the front surface of the plug 2.
A receiving hole 10 is formed to receive the
A metal plate 11 is buried in the bottom surface of 0.

Further, a pin hole 12 is formed in the plug 2 in a direction orthogonal to the receiving hole 10 and the metal plate 11, penetrating the upper and lower surfaces thereof, and the head of the locking pin 13 is fitted into the pin hole 12a. It is a large diameter hole.

The pin hole 12 has the same square shape as the locking hole 9, and the pin 13 has the same shape as the locking piece 9.

14 indicates ear pads of the headphones.

Therefore, as shown in FIG.
When the plug 2 is inserted into the recess 6 and the front surface of the plug 2 is brought into contact with the back wall 7, the locking piece 8 protruding from the center of the back wall 7 is inserted into the receiving hole 10 formed in the plug 2. The locking pieces 8 protruding from opposite sides respectively engage with the lead wires 3a and 3b.

At this time, the locking hole 9 of the locking piece 8 is connected to the pin hole 12.
Therefore, by inserting the locking pin 13 into the pin hole 12, the cord 1 is fixed to the unit part 4.

On the other hand, the lead wire 3at3b inserted into the housing 5 from the insertion hole in the back wall 7 is connected to the unit part 4 by soldering.

Contrary to the above, to remove the cord 1 from the unit part 4, first remove the soldered lead wires 3a+3b from the unit part 4, then pull out the locking pin 13 from the pin hole 12, and then remove the plug 2. By pulling it out from the recess, the cord 1 can be completely removed from the unit part 4.

As described above, the present invention includes forming a recess 6 on the circumferential surface of the housing 5 constituting the unit part 4 for receiving the front part of the plug, and a rear wall 7 of the recess 6 formed in the housing 5. A locking piece 8 with a locking hole 9 formed in the front end thereof is provided horizontally protruding from the center of the housing 5 toward the outer circumference, and lead wires 3a and 3b are provided protruding from the plug 2 of the cord in the insertion direction. to form a receiving hole 10 for receiving the locking piece 8, and
A pin hole 12 is provided through the receiving hole 10 in a direction perpendicular to the receiving hole 10, and the locking pieces 8 and the lead wires 3a and 3b, which are respectively protruded from opposite sides, engage with each other to form a locking piece in the receiving hole 10. 8 and overlap the locking hole 9 of the locking piece 8 with the pin hole 12,
Since the locking pin 13 is inserted into the pin hole 12, the cord 1 can be fixed and removed from the unit part 4 easily and quickly by simply inserting and removing the locking pin 13, and there is no risk of damage. do not have.

Further, the shape design of the part fixed to the unit part 4 on the cord 1 is simple and compact, so that the weight can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the cord portion of a conventional cord connecting mechanism, Fig. 2 is a partially cutaway plan view of the main part showing the fixed state of the connecting mechanism, and Fig. 3 is a cord according to the present invention. FIG. 4 is a perspective view of the connection mechanism before it is fixed, and FIG. 4 is a partially cutaway side view showing the same fixed state. 1...cord, 2...plug, 4...
... Unit part, 8 ... Locking piece, 9 ...
... Locking hole, 10 ... Reception hole, 12 ...
・In hole, 13... Locking pin.

Claims (1)

[Scope of utility model registration request] A recess for accommodating the front part of the plug is formed on the circumferential surface of the housing constituting the unit part, and the front end part is locked from the center of the back wall of the recess formed in the housing toward the outer circumferential direction of the housing. A locking piece with a hole is provided horizontally,
The plug of the cord has a lead wire protruding in the insertion direction to form a receiving hole for receiving the locking piece, and a pin hole is provided in a direction perpendicular to the receiving hole, The locking pieces protruding from opposite sides of each other and the lead wire are engaged, the locking piece is inserted into the receiving hole, the locking hole of the locking piece overlaps the pin hole, and then the locking piece is engaged with the pin hole. A headphone cord connection mechanism characterized in that a stop pin is inserted into the headphone cord connection mechanism.