JP2592757Y2 - Headset microphone arm rotation mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for rotating a microphone arm attached to a headset used for wireless communication or the like.

[0002]

2. Description of the Related Art A headset with a microphone arm of this kind differs in size and shape of a head and a face from person to person, so that the length of a headband and a hanger of the headset are usually adjustable. The microphone arm is also rotatably attached to the hanger, so that it can be set at a desired position.

FIG. 4 shows a conventional example, in which the shape of a headband 11 and a hanger 12 can be freely adjusted by a known mechanism, and a microphone is provided at the lower end of the hanger 12 in microphone cases 13a and 13b. A rotating case 16 at the other end of a microphone arm 15 having a microphone in which the unit 14 and other parts are housed is rotatable via a known rotating mechanism including a metal spring 17 and the like. Mounted on

In addition, in FIG. 4, for example, reference numeral 18 denotes a relay case accommodated in the rotating case 16, and 19 denotes a washer. Reference numeral 20 denotes a disk-shaped rotation stopper provided at the outer end of the rotation case 16, 21 denotes a housing provided inside the hanger 12, 22 denotes an E-ring for locking the relay case 18, 23 denotes a terminal plate, 24 is a code.

FIG. 5 shows another conventional example, in which reference numeral 30 denotes a headband which is attached to a hanger 31 so as to be extendable and contractable as shown by arrows, and 32 denotes a microphone arm which is attached to the lower end of the hanger 31. In this example, hanger 3
Rotating case 33 at the end of microphone arm 32 from inside 1
When the microphone arm 32 is rotated with respect to the hanger 31, the braking force is adjusted so that the microphone arm 32 can be braked to a predetermined position by the tightening condition of the assembly screw 34 screwed into I have.

[0006]

However, the use of the former metal spring 17 shown in FIG. 4 requires a dimension in the thickness direction, which has limitations in design, and also requires the metal spring 17 to be assembled. There was a problem that the work had to be performed while holding down the assembly, which required poor workability. Further, FIG.
In the latter case, since the braking force is adjusted by the degree of tightening of the screw 34, for example, the screw 34 may be loosened due to aging, rattling may occur, or the braking force may be weakened. I am worried about sex. In addition, there is a problem that the braking force tends to vary for each product.

This invention has been proposed in view of the above, and has as its object a simple structure, easy to assemble, thin in design, and always stable. An object of the present invention is to provide a rotation mechanism of a microphone arm of a headset that can obtain power and improve reliability.

[0008]

The present invention provides a hanger 1
Rotating case 8 rotatably mounted on one side of the
And a substantially disk-shaped rotating plate 10 rotatably attached to the other surface of the hanger 1 and integrated with the rotating case 8.
Protrusion 10 rotatably housed in groove 5 formed on the side
The protrusion 10f is formed at the tip of the elastic arm 10e and is movable in contact with the continuous wavy uneven surface 5a formed on the bottom surface of the groove 5 to achieve the above object. ing.

[0009]

According to the present invention, the number of components is as small as the number of parts of the rotating case 8, the hanger 1, the rotating plate 10, and the screws 9 for connecting these components, and the configuration is simple. In addition, the rotating plate 10 has a disk shape, so that even if the respective members are combined, the rotating plate 10 does not increase in thickness and can be made thinner in design. Furthermore, the rotating case 8 rotates integrally with the rotating plate 10, and when rotating, the rotating plate 1 is placed on the uneven surface 5 a in the groove 5 on the hanger 1 side.
The projecting portion 10f at the distal end of the zero elastic arm is moved while contacting, so that a suitable braking force and a click feeling are obtained.

[0010]

FIG. 1 is a sectional view showing a main part of an embodiment of the present invention.
In the drawing, reference numeral 1 denotes a lower end of a resin hanger, and a circular opening 2 is formed at the lower end. A ring-shaped groove 3 is formed on an outer portion of the hanger 1 and on the outer periphery of the opening 2, and a ring-shaped sheet 4 called trade name polyslider sheet is stored in the groove 3.

Reference numeral 8 denotes a resin rotary case formed at the other end of a microphone arm 7 provided with a microphone 6 at one end and having a hollow inside for leading out a microphone cord. That is, a ring-shaped projection 8a rotatably inserted into the groove 3 into which the sheet 4 has been inserted is formed on the surface facing the hanger 1. In this case, the seat 4 is used for the purpose of reducing friction and stabilizing the braking force against the rotation of the rotating case 8. A pair of cylindrical screw mounting portions 8b are formed inside the rotating case 8 and on both sides of the center thereof.

Thus, the inside of the lower end of the hanger 1 is integrated with the rotating case 8 via the screw 9,
A rotating plate 10 made of resin that is rotatable together with is mounted.
In other words, the rotating plate 10 has a generally disc-like shape with a relatively small thickness as a whole, and has a slightly thick protrusion 10 rotatably loosely fitted into the opening 2 on its inner surface, that is, the hanger 1 side.
a is formed. Further, a hole 10b for deriving a microphone code is formed in the center, and as shown in FIG.
In the radial direction on both sides of the hole 10b, a notch 10d extending from a position separated from the hole 10b to the outer periphery and a substantially similar U-shaped notch 10d 'are formed on the opposite side. An arm 10e extending in the radial direction is defined by the notches 10d and 10d ', and a hemispherical protrusion 10f is formed on the outer peripheral surface of the arm 10e. The arm 10e has elasticity due to the material of the resin, and functions as a leaf spring.

A pair of screw insertion holes 10c are formed on both sides of the center hole 10b in a radial direction orthogonal to the arm 10e and correspond to the screw mounting portions 8b on the rotating case 8 side. Thereby, the rotating case 8 and the rotating plate 10 are integrated. On the other hand, a ring-shaped groove 5 corresponding to the protrusion 10f of the rotating plate 10 and rotatably receiving the same is formed on a surface of the hanger 1 facing the rotating plate 10.
As shown in FIG. 3, the bottom surface of the groove 5 is formed on a continuous wavy uneven surface 5a, and the protrusion 10f is provided on the uneven surface 5a to sandwich the hanger 1 between the rotating case 8 and the rotating plate 10. When they are assembled using the above-mentioned screw 9 so as to be held in a shape, they come into contact with each other.

That is, in assembling, the sheet 4 is put into the groove 3 of the hanger 1 and the rotating case 8 and the rotating plate 10 are positioned with the hanger 1 interposed therebetween.
Is inserted into the groove 3. The thick circular projection 10a of the rotating plate 10 is inserted into the opening 2, the projection 10f is inserted into the groove 5, and the screw 9 is inserted from the rotating plate 10 side through the screw insertion hole 10c. Side screw mounting part 8
What is necessary is just to screw in b. The microphone cord is derived from the central hole 10b that has the least effect on the torsional movement.

In this case, the circular projection 10a is rotatably loosely fitted into the opening 2. The tip of the projection 10f is in contact with the corrugated uneven surface 5a. When the microphone arm 7 is rotated to set the microphone 6 to a desired position, the rotating case 8 and the rotating plate 10 rotate integrally. In this case, since the protrusion 10f is formed at the tip of the elastic arm 10e, the protrusion 10f moves while flexing on the protrusion of the corrugated uneven surface 5a.
Due to the presence of the recess, the braking force of the rotational movement and the click feeling can be obtained, and positioning can be performed in the recess.

The rotating mechanism having the above structure can be applied to a microphone arm rotating section of a so-called hands-free headset, a microphone arm rotating section of a hands-free microphone, a microphone holder rotating section of a vocal microphone, and the like.

[0017]

As described above, according to the present invention, the rotating case 8, the hanger 1, and the substantially disk-shaped rotating plate 1 are structurally constituted.
0, the number of parts is small and the structure is simple, so that it is easy to assemble and thin, and the groove 5 of the hanger 1
The projection 10f of the rotating plate 10 integrated with the rotating case 8 is moved while bending while contacting the concave and convex surface 5a inside, so that a stable braking force and a click feeling are obtained when the rotating case 8 rotates. be able to.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the rotary plate used in the present invention as viewed from the outside.

FIG. 3 is a perspective view of the hanger of the present invention, which is an opposing surface of the inner surface of the rotating plate.

FIG. 4 shows a conventional example.

FIG. 5 shows another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hanger 2 Opening 3 Groove 4 Sheet 5 Groove 5a Uneven surface 6 Microphone 7 Microphone 8 Rotating case 8b Screw mounting part 9 Screw 10 Rotating plate 10a Thick circular projection 10b hole 10c Screw insertion hole 10d, 10d 'notch 10e Arm 10f Projection

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04R 1/10 H04M 1/05

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotatable case (8) rotatably mounted on one surface of a hanger (1), and a rotatable case (8) rotatably mounted on the other surface of the hanger (1). ) And a substantially disk-shaped rotary plate (10) integrated therewith, and the rotary plate (10) is rotatably housed in a groove (5) formed on the hanger (1) side. The projection (10f) is formed at the tip of the elastic arm (10e), and has a continuous wavy uneven surface (5f) formed on the bottom surface of the groove (5).
A microphone arm rotating mechanism for a headset, which is movable in contact with a).