JPS6031349Y2 - headphone - Google Patents

Description

[Detailed Description of the Invention] The present invention includes a speaker unit, a holder that supports the speaker unit, a headband connected to the holder so that its length can be adjusted, and a cord that supplies electrical signals to the speaker unit. The purpose of the headphone is to provide a headphone comprising a cord attachment member for attaching the cord to the holder, which is lighter in weight, smaller in size, and shortened in assembly time by simplifying the structure and reducing the number of parts. It is about providing.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is an electrodynamic speaker unit, 2 is a holder that supports the speaker unit 1, 3 is a headband connected to the holder 2 so that its length can be adjusted, 4 is a cord that supplies electrical signals to the speaker unit 1, and 5 is a cord attachment member for attaching the cord 4 to the holder 2.

The holder 2 is a channel-shaped main body 2 molded from resin.
1, one end of the main body 21 has a bridge 21b spanning the channel 21a, a mounting part 2'1d having a screw hole 21c in the channel near the other end, and a channel 21a on the other end surface. Protrusions 21e are provided which respectively protrude from the formed side walls.

The holder 2 also has a cover member 22 formed in the shape of a channel with a width that can fit into the channel 21a of the main body 21, and the cover member 22 has a channel bottom wall extended 22a at one end, and a channel bottom wall extending 22a at the other end. The bottom wall of the channel is notched 22b.
has been done.

The extension part 22a of the bottom wall of the channel has a slight step 22c between it and other parts, and this extension part 22a is positioned under the bridge 21b of the main body 21. channel 21a and cover member 2
When the cover member 22 is attached to the main body 21 so that the two channels 22d face each other, a space S is formed between the main body 21 and the cover member 22.

This space S is the cover member 2 below the bridge 21a.
The height hl of the extended portion 22a of No. 2 is slightly smaller than the height N of the other portions.

The headband 3 is made of a band-shaped elastic metal material, and although only one end is shown in the figure, a sliding member 31 is integrally provided at each end by resin molding.

A hole 31a is formed in the center of the sliding member 31, into which a spring 32 and a steel ball 33 energized by the spring 32 are inserted.

With the spring 32 and the steel ball 33 inserted into the hole 31a, the sliding member 31 frees up the space below the bridge 21b of the main body 21 of the holder 2 by compressing the spring 32. can pass through.

When the sliding member 31 is housed in the space S formed by attaching the cover member 22 to the main body 21, the sliding member 31
1 can move freely within the height range, but cannot pass through the area where the extension of the cover member 22 is inserted under the bridge 21b and reaches the height hl. This allows the headband 3 to be attached to the holder 2 so that its length can be adjusted.

In addition, the steel ball 33 energized by the spring 32 is pressed against the bottom wall of the cover member 22 in which a large number of recesses 22d are formed, so that the steel ball 33 and the recesses 22d form a click mechanism. However, the length of the headband 3 adjusted to the desired length can be maintained at that position.

The cord attachment member 5 is shaped by resin molding, and has a support portion 5a for the cord 4 at one end, and a hole 5b for inserting a set screw 6 approximately in the center.

The support portion 5a has a recess 5a', and with the protrusion 21e of the main body 21 of the holder 2 engaged with the recess 5a', the set screw b is inserted through the hole 5b to lock it. screw 6
By screwing into the screw hole 21c of the main body 21, the cord attachment member 5 can be attached to the holder 2, and the cord 4 can be fixed to the holder 2.

By attaching the cord attachment member 5 to this holder 2,
Since the other end 5c of the cord attachment member 5 rests on the notch 22b of the cover member 22 and presses the cover member 22, the cover member 22 is attached to the main body of the holder 2 at the same time.

To assemble the headphones with the above-described configuration, as shown in FIG. 3, the sliding member 31 at one end of the headband 3 is inserted into the channel 21a of the main body 21 under the bridge 21b.

Before and after inserting the sliding member 31, the spring 32 and the steel ball 33 are inserted into the hole 31a of the sliding member 31, and then, after inserting the extension part 22a of the cover member 22 under the bridge 21b, the cover member 31 is inserted. The entire member 22 is connected to the channel 21a.
Put it inside.

Furthermore, after that, the recess 5a of the support part 5a of the cord attachment member 5 is
' is engaged with the protrusion 21e of the main body 21, and by screwing the set screw 6 inserted from the hole 5b of the cord attachment member 5 into the screw hole 21c of the main body 21, the cover member 22
Headphones shown in FIGS. 1 and 2 in which the cord attachment member 5 and the cord attachment member 5 are attached to the main body 21 are obtained.

As described above, the present invention includes a channel-shaped body of a holder and a cover member attached to the body, which accommodates a sliding member provided at one end of the headband and allows the sliding member to move within a certain range. Since the cover member is attached to the main body by attaching the cord attaching member to the main body, the structure is simplified and the number of parts is reduced, making the headphone lightweight. It is possible to obtain headphones that are smaller in size and require shorter assembly time.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the headphones as seen from the rear, FIG. 2 is a sectional view of a portion of FIG. 1, and FIG. 3 is an exploded perspective view of the components shown in FIG. 2. It is. 1... Speaker unit, 2... Holder, 21... Channel shaped body, 22...
...Cover part, 3...Headband, 31
...Sliding member, 4...Cord, 5...
...Cord mounting member, S... Blank space.

Claims (1)

[Scope of utility model registration request] a speaker unit, a holder that supports the speaker unit, a headband connected to the holder in a freely adjustable length, a cord that supplies electrical signals to the speaker unit, and a cord attachment member that attaches the cord to the holder. In a headphone comprising: a channel-shaped body of the holder; and a cover member attached to the body; A headphone, characterized in that the cover member is attached to the main body by attaching the cord attaching member to the main body.