JPH0713314Y2 - Phone hearing loss prevention mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a hearing injury prevention mechanism for a handset-type telephone.

[Prior Art] In recent years, telephones with various functions added have been put into practical use in accordance with changes in usage patterns, and one of them has a hands-free function (without a transmitter). There is a telephone equipped with). This hands-free function
The volume of the receiving speaker of the cordless cordless handset is switched to a high volume by the hands-free changeover switch, and the sound is emitted from the same speaker as a hands-free telephone.

[Problems to be solved by the invention] However, in a telephone equipped with such a hands-free function, it is not noticed that it is in a hands-free state, and if it is accidentally applied to the ear as a normal transmitter. However, it is expected that the eardrum will be injured due to a large volume and that the eardrum will be temporarily inaudible or, in the worst case, it will be broken, and some measures have been demanded.

Therefore, the present invention has been made in view of the above demands, and the purpose thereof is to visually identify the hands-free state with a relatively simple configuration.
Another object of the present invention is to provide a hearing damage prevention mechanism for a telephone in which a speaker does not directly touch the ear in a hands-free state and protects the ear from a large volume.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a handset-type telephone having a hands-free function, wherein the housing of the handset-type telephone includes an upper case and a lower case, a hands-free changeover switch, and A hands-free switching lever is provided, and a support portion is provided at a position where the switching lever of the upper case is arranged, and the switch operating member provided on the switching lever is pivotally supported by the support portion. And the switch operating member, when the switching lever is turned upright,
The changeover switch is operated.

[Operation] In the present invention, the hands-free switching lever has a switch operating member and is rotatably disposed on the upper case. When the hands-free switching lever is erected, the hands-free switching switch is operated to set the hands-free state. None, avoid touching the phone directly with your ears. A support portion recessed in the upper case pivotally supports a switch operating member of a hands-free switching lever.

[Embodiment] Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of a handset-type telephone equipped with a hearing injury prevention mechanism according to the present invention.
The figure is a view taken in the direction of arrow A in FIG. In these figures, a handset-type telephone 1 is formed of a resin material in a shallow-bottom long box shape, and is fitted with an upper case 2 and a lower case, which are integrally coupled by a set screw, an elastic engaging piece, and the like. A case 4 including a case 3 is provided, and a push button type dial unit, a control circuit (none of which are shown), a printed circuit board 5, a hands-free changeover switch 6 and the like are provided inside the lower case 3 along the inner bottom surface thereof. Are arranged. Further, a speaker 7, a hands-free switching lever 8 that constitutes a hearing injury prevention mechanism, and a microphone 9 are disposed on the other end side of the upper case 2 near one end of the upper surface thereof.
A keyboard 10 of a push-button type dial and various operation buttons 11 such as a volume changeover switch are provided on the upper surface and the side surface between the microphone 9 and the microphone 9.

The upper surface of the upper case 2 on which one of the hands-free switching levers 8 is disposed is formed as a recess 12 having a depth substantially equal to the plate thickness of the lever 8. On both sides in the width direction of the housing 4, a pair of supporting portions are provided along a wall surface 13 that separates the recess 12 from the upper case upper surface.
14 are formed. The central axis of the support portion 14 is the wall surface.
A pair of left and right recesses 14 formed in a semi-cylindrical shape substantially parallel to 13
A notch is opened between the recesses 14A, 14B to form an opening 15 for communicating the inside and outside of the upper case 2.

A switch operating member 16 is integrally formed on the end surface of the hands-free switching lever 8 on the side of the wall surface 13 so as to correspond to the recesses 14A and 14B and the opening 15. This switch operating member 16
Is a body 16A which is inserted into the case 2 above the opening 15 so as to correspond to the hands-free changeover switch 6, and is rotatable by the recesses 14A and 14B provided on both sides of the base end of the body 16A. It is composed of semi-cylindrical protrusions 16B and 16C that are pivotally supported by. The main body 16A is in a state in which the hands-free switching lever 8 is housed in the recess 12,
That is, when the volume of the speaker 7 is low, the speaker 7 is held horizontally during a normal call to direct the microphone 9 direction,
When the hands-free switching lever 8 is turned upright to switch to the hands-free state, it is directed vertically downward and the hands-free switching switch 6 is pressed. In this case, the wall surface 13 forms a stopper when the hands-free switching lever 8 stands up.

Thus, in the telephone 1 having such a configuration,
When switching to the hands-free state, the hands-free switching lever 8 stands up on the recess 12 of the upper case 2 and the upper case 2
Since it projects above, it is possible to distinguish at a glance whether it is the normal state or the hands-free state depending on whether or not the switching lever 8 is upright, and when the telephone 1 is brought close to the ear regardless of the hands-free state. The hands-free switching lever 8 hits the ear to prevent direct contact between the ear and the speaker 7. Therefore, the eardrum can be protected from a loud volume.

It should be noted that the present invention is not limited to the structure of the above-described embodiment, and may be a tilt mechanism as a support structure of the hands-free switching lever 8, for example.

[Effects of the Invention] As described above, in the hearing damage prevention mechanism for a telephone according to the present invention, the hands-free switching lever is rotatably provided on the upper case forming the transmitter housing, and the lever is rotated. Since it is configured to operate the hands-free selector switch by standing up to switch to the hands-free state, visually confirming the state of the hands-free selector lever visually distinguishes between the normal state and the hands-free state. Also, when the phone is brought close to the ear, the hands-free switching lever hits the ear, so that hearing damage due to a large volume can be prevented, and its practical effect is very large.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a handset-type telephone equipped with a hearing injury prevention mechanism according to the present invention.
The figure is a view taken in the direction of arrow A in FIG. 1 ... Handset type telephone, 2 ... Upper case, 3 ...
Lower case, 4 ... Housing, 6 ... Hands-free selector switch, 7 ... Speaker, 8 ... Hands-free selector lever, 9 ... Microphone, 12 ... Recessed portion, 14 ... Support portion, 14A, 1
4B: recess, 16: switch operating member.

Claims (1)

[Scope of utility model registration request] 1. A handset type telephone having a hands-free function, wherein the housing of the handset type telephone is
An upper case and a lower case, a hands-free changeover switch, and a hands-free changeover lever are provided, and a support portion is recessed at a position where the changeover lever of the upper case is arranged. The support portion provides the changeover lever. A hearing damage prevention mechanism for a telephone, wherein a switch operating member is rotatably and pivotally supported, and the switch operating member operates the changeover switch when the changeover lever is turned upright.