JPH05111086A - Headphone - Google Patents

Abstract

PURPOSE:To provide a single headphone with a close type function and an open type (open air type) function. CONSTITUTION:In the headphone constituted of arranging a baffle plate 5 in a housing 2, fixing a unit 6 to the plate 5 and ear pads 7 are fixed to one side of the plate 5, a hole 9 is formed on the plate 5. Holes 10, 12 are formed also on the housing 2, the hole 9 is connected to the hole 10 through a pipe 11 and the holes 10, 12 are simultaneously opened/closed by a disk 13 to be a shutter. The disk 13 is rotated, and when holes 15, 16 formed on the disk 13 coincide with the holes 10, 12, the headphone is used as the open type. When the respective holes do not coincide with each other, the close type function is adopted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to headphones of the type that are worn on the head by a headband.

[0002]

2. Description of the Related Art In headphones of a type that is worn on the head by a headband, a closed type in which the inside of the housing is cut off from the outside and the air in the housing has a damping characteristic to improve the low frequency characteristic, There is an open type (open air type) that has a hole communicating with the outside to eliminate the so-called "crowded sound" and produces a crisp sound.

Since the above two types have excellent characteristics and it is difficult to say which one is better, the user purchases and uses one of them according to his or her preference. However, in some cases, it may be better to use the two characteristics properly depending on the type of music, and as in the conventional case, the single characteristics may be inconvenient.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and an object of the present invention is to provide a headphone capable of easily switching between the two characteristics.

[0005]

According to the present invention, as a means for solving the above problems, a baffle plate is provided in a housing, a unit is attached to the baffle plate, and an ear pad is attached to one surface of the baffle plate. In the headphone, the baffle plate is provided with a hole communicating with the outside, the housing is also provided with a hole, and a shutter for simultaneously opening and closing these two holes is provided.

[0006]

With this structure, if the shutter is moved so that the inside of the housing communicates with the outside, it functions as open type headphones, and the shutter is moved to connect the inside and the outside of the housing. If it is cut off, the function of a closed headphone can be obtained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. 1 is a headphone and 2 is its housing. The housing 2 has a cup shape having a bottom portion 3 and an opening portion 4, and the opening portion 4 is closed by a baffle plate 5. A unit 6 is attached to the center of the baffle plate 5, and ear pads 7 are attached to the outside of the unit 6. A diaphragm is provided at the front of the unit 6, but its illustration is omitted. Housing 2 and baffle plate 5
A chamber 8 is formed in the portion surrounded by.

A hole 9 is provided in the baffle plate 5,
A hole is also formed in the bottom portion 3 of the housing 2 at a position facing the hole 9.
Ten are provided. These holes 9 and 10 are connected by a pipe 11 provided in the chamber 8. The bottom 3 of the housing 2 is also provided with a hole 12 for communicating the chamber 8 with the outside, and the bottom 3 of the housing 2 is provided with a disk 13 as a shutter for simultaneously opening and closing these holes 10, 12. The central portion is mounted by being attached by a shaft 14. The disk 13 has a shaft 14
Holes at the same distance from the holes 10 and 12, respectively.
15 and 16 are provided (see FIG. 2). Reference numeral 17 denotes a finger-hanging protrusion provided on the disc 13.

The headphone 1 thus constructed
Put your finger on the protrusion 17 and rotate the disk 13 to move the holes 15 and 10
However, if holes 16 and 12 are made to match each other,
The portion surrounded by the ear pads 7 and the outside of the housing 2 communicate with each other, and the chamber 8 and the outside of the housing 2 communicate with each other. Therefore, it functions as open headphones.

Put your finger on the protrusion 17 to change the position of the disk 13,
If the holes 10 and 12 are closed by the disc 13, both the part surrounded by the ear pad 7 and the chamber 8 are shielded from the outside of the housing 2, so that it functions as a closed headphone. Become. By adjusting the position of the disk 13 so that the holes 10 and 12 are half-open, intermediate characteristics between the open type and the closed type can be obtained.

In the embodiment described above, the holes 10, 12
Although the shutter that simultaneously opens and closes the disk 13 is described as being rotated, the present invention is not limited to this. The shutter may have another shape, for example, a rectangular shape, and the shutter may be slid on the bottom portion 3 of the housing 2, or may have another structure. The point is that the shape and structure of the holes 10 and 12 are not limited as long as they can be opened and closed at the same time.

[0012]

Since the present invention is a headphone configured as described above, both open type and closed type characteristics can be obtained by adding a simple configuration to one headphone. ..

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

2 is a plan view of that of FIG. 1. FIG.

[Explanation of symbols]

 1 headphone 2 housing 3 bottom 5 baffle plate 6 unit 7 ear pad 8 chamber 9 hole 10 hole 11 pipe 12 hole 13 disc 14 shaft 15 hole 16 hole

Claims (1)

[Claims] 1. A headphone in which a baffle plate is provided in a housing, a unit is attached to the baffle plate, and ear pads are attached to one surface of the baffle plate, the baffle plate is provided with a hole communicating with the outside, and the housing is provided with a housing. Headphones that are also provided with a hole and a shutter for opening and closing these two holes at the same time.