JPS6320233Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a headphone.

A headphone is composed of a phon part that converts audio current into sound, a hanger that supports the phon part, and a headband whose ends are connected to required parts of the hanger. In order to bring the horn portion into contact with the ear in a desired state, the horn portion can be rotated vertically relative to the hanger, and the hanger can be rotated laterally relative to the headband. Therefore, conventional headphones (hereinafter referred to as "conventional products")
Then, the required portions of the hanger and the ends of the headband are connected, for example, as follows, so that the hanger can rotate relative to the headband as described above. That is, a cap made of plastic, for example, is fixed to the end of the headband by insert molding, a metal shaft is protruded from the bottom of the cap by insert molding, and support holes are formed at required locations above the hanger. At the same time, attach an E-ring to the tip of the shaft to prevent it from coming off, or insert and lock the end of the headband into a separately molded cap made of plastic, for example. A support hole opened at the bottom and a shaft protruding from the upper part of the hanger were rotatably fitted into each other, and pins and the like were attached to the shaft to prevent it from falling out. In the former case, the cap is attached to the end of the headband, the shaft is fixed and protruded at the required location of the cap by insert molding, and the E-ring is attached to the shaft, which requires a lot of assembly man-hours. There was a problem that the number of parts increased, and the manufacturing cost increased. In the latter case, if the shaft is formed only from plastic, for example, there is a disadvantage that the shape of the shaft and cap becomes large in order to maintain strength. Due to the need to attach pins, etc., the number of assembly steps increases.
There was a problem that manufacturing costs increased.

The present invention was devised in view of the above circumstances, and its purpose is to provide a headphone that can reduce the number of parts and assembly man-hours, and reduce manufacturing costs.

To this end, the present invention has a hanger holder member rotatably fitted onto the end of the headband and a required portion of the cap that is engaged with this end, and a holder member protruding from the end of the required portion of the cap. It is characterized in that the locking piece is locked in a locking hole formed in the holder member.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, a headphone according to the present invention (hereinafter referred to as "this product") will be explained with reference to drawings showing one embodiment thereof.

Fig. 1 is a partially omitted front view schematically illustrating the configuration of the main parts of the product, and Fig. 2 is a partially omitted side view schematically illustrating the configuration of the main parts. Parts 2 and 2 are hangers made of plastic, for example, and the phone part 1 is pivotably supported vertically at the tips of arm members 22, 22 extending from both sides of a substantially cylindrical holder member 21. . As shown in FIG. 3, inside the holder member 21, there are arm members 22,
A round insertion hole 24 with a slightly smaller diameter and having vertical grooves 23, 23 on the 22 side is opened vertically from the upper end to the vicinity of the lower end. And vertical groove 2
The inner surfaces of 3 and 23 are curved in an arc shape, and the lower end of the holder member 21 has a
A round locking hole 25 with a slightly larger diameter than the insertion hole 24
is opened, and a stepped portion 25 is formed between the insertion hole 24 and the insertion hole 24.
1 is formed, and the inner surface of this locking hole 25 and the inner surface of the vertical grooves 23, 23 are flush with each other.

Reference numeral 3 denotes a headband, which is made of an elastic metal plate, such as a stainless steel plate, and is formed into an elongated band shape and is appropriately curved inward. And, at the end of the headband 3,
For example, a plastic cap 4 is secured as follows. That is, as shown in FIG. 3, the cap 4 is formed with a substantially cylindrical upper part 41 and a round bar-shaped lower part 42 whose axes coincide with each other, and the lower part 42 is slightly wider than the upper part 41. It has a small diameter and has an appropriate diameter so that it can be fitted into the insertion hole 24 and rotated freely. In the center of the upper part 41, a slit-shaped square hole 43 through which the headband 3 can be inserted is provided at the top and bottom, and in the lower part 42, a gap 44 connected to the square hole 43 is formed up to the vicinity of the lower end. has been done. Then, on the outside of the lower end of the lower part 42, locking pieces 45, 45 are provided in opposite directions on the inner surface forming the gap 44, and the locking pieces 45, 45 are formed on the sides with an appropriate shape that can be inserted into the vertical grooves 23, 23. It is formed so as to protrude toward the side. Furthermore, rectangular locking holes 46 communicating with the square holes 43 are provided at required locations on the upper portion 41 . Note that an appropriate cutout surface 411 matching the shape of the square hole 43 is formed at the upper end of the upper part 41 . Then, connect the end of the headband 3 to the square hole 43 and the gap 4.
The cap 4 is locked to the end of the headband 3 by inserting the cap 4 into the headband 3 and locking the locking pawl 31 formed at a predetermined position near the end of the headband 3 into the locking hole 46. The width of the headband 3 is set to an appropriate size slightly larger than the diameter of the lower part 42. Therefore, when the cap 4 is locked to the end of the headband 3, the side end of the headband 3 forms a vertical groove. 23, 23 to the outside of the lower part 42.
As shown in the figure, it is in a state where it protrudes slightly.

Then, attach the lower part 42 of the cap 4 to the hanger 2.
After rotating the cap 4 approximately 90 degrees as shown in FIG.
23 are in the same direction, and the locking piece 45 is aligned with the stepped portion 2.
51), the headband 3 is inserted into the square hole 43 and the gap 44, and the locking claw 31 is locked in the locking hole 46. In this state, the holder member 21 does not come off from the cap 4 and the headband 3, and the holder member 21, that is, the hanger 2 and the headband 3, can move within the range in which the side ends of the headband 3 can move within the vertical grooves 23, 23. The part 1 is rotatable around the cap 4 and the headband 3.

As is clear from the above description of one embodiment of the present product, according to the present invention, the number of parts related to the connection between the headband and the hanger can be reduced, and manufacturing costs can be reduced. Further, by reducing the number of parts, the shape of the connecting portion can be made smaller, which is advantageous in terms of design, and the present invention has excellent effects.

In the above-described embodiment, the cap 4 is locked to the end of the headband 3, and the holder member 21 is rotatably fitted onto the end of the headband 3 and the required portion of the cap 4, and the cap 4 is Although the locking pieces 45, 45 are configured to be locked in the locking hole 25 of the holder member 21, the present invention is not limited to this.
It may be configured as follows. That is, FIG. 7 schematically shows the main parts of another embodiment according to the present invention, in which the holder member 21' is formed in a structure in which the above-mentioned holder part 21 is upside down, and the cap 4' is also It is formed in a structure similar to the above-mentioned cap upside down, with a gap 44' located on the upper side extending to the upper end, and a square hole 43' with a bottom formed in the lower part 41'. A locking pawl 31' is formed near the end of the headband 3'. Then, the upper part 42' of the cap 4' is fitted into the holder member 21' from the lower end in substantially the same manner as in the above embodiment, and the end of the headband 3' is inserted from the upper side of the holder member 21' into the space provided. 44' and square hole 43'
Of course, it is also possible to insert the cap 4' into the head band 3' and lock the cap 4' to the end of the head band 3'.

[Brief explanation of the drawing]

Figure 1 is a partially omitted front view schematically showing the configuration of the main parts of the product, Figure 2 is a partially omitted side view schematically showing the configuration of the main parts, Figures 3 and 4. The figure is an explanatory diagram of the configuration of the main parts of the product, and Figure 5 is an explanatory diagram of the state in which the cap is locked to the end of the headband.
Fig. 6 is an explanatory diagram when the holder member is externally fitted to the end of the headband and required parts of the cap;
The figure is an explanatory view of the main parts of another embodiment according to the present invention. 1... Hon part, 2... Hanger, 21, 21'
...Holder member, 22, 22...Arm member, 23,
23... Vertical groove, 24... Insertion hole, 25... Locking hole, 251... Step portion, 3, 3'... Head band,
31, 31'...locking claw, 4,4'...cap,
41, 41'...Upper side part, 411...Notch surface, 4
2,42'...lower part, 43,43'...square hole, 4
4, 44'... Gap, 45, 45... Locking piece, 4
6...Latching hole.

Claims (1)

[Scope of utility model registration request] A hanger that supports the phone part with arm members extending from both sides of a cylindrical holder member, and a headband that locks the cap at the end of the headband. A holder member is rotatably fitted onto a required portion of the cap that is locked to the end portion, and a locking piece formed projecting from the end of the required portion of the cap is inserted into a locking hole formed in the holder member. A headphone characterized in that it is locked.