JP2907099B2 - Handset structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal, and more particularly to a telephone handset structure.

[0002]

2. Description of the Related Art As an example of a conventional handset structure, there is a technique described in Japanese Utility Model Laid-Open Publication No. 63-35352.

[0003] In this conventional example, only a single handset unit can be fixed. Therefore, when trying to set a handset that meets the customer's specifications in the same telephone series, such as a hearing aid compatible handset unit necessary for the hearing impaired, it is necessary to prepare a separate handset. This will hinder the sharing of the information.

Further, in the conventional handset structure disclosed in Japanese Utility Model Application Laid-Open No. 63-35352, both ends of a weight (unit holding metal) are fixed from the upper surface by ribs formed on an upper housing. Therefore, the handset unit generates a floating force due to the impact at the time of a drop impact, and the force to deform the weight is transmitted to the ribs of the upper case, and furthermore, the upper case and the lower case are connected. In the worst case, there is a possibility that the locking claws at both ends that are united may be damaged.

[0005]

As described above, the first problem with the above-mentioned prior art is that only one type of handset unit can be fixed because the weight is simply an inverted letter. Therefore, when preparing a handset to which a handset unit with different external dimensions or electrical characteristics is prepared according to customer's requirements, additional parts are required, equipment investment is increased, and sharing of parts is hindered, Very uneconomical.

[0006] The second problem is that the weight is held down by the ribs from the upper housing, and there is a danger that components may be damaged at the time of a drop impact. Specifically, when the handset is accidentally dropped, both ends of the weight are fixed from the top surface by the ribs formed on the upper housing, so that the handset unit may The force to deform the weight is transmitted to the ribs of the upper housing, and further to the locking claws at both ends where the upper housing and the lower housing are united, In the worst case, there is a strong possibility that damage will occur.

In this case, it is impossible for the customer to repair the device by simply repairing it, and the customer is ultimately forced to exchange each handset, which is also extremely uneconomical.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances. Accordingly, an object of the present invention is to solve the above-mentioned drawbacks inherent in the prior art and to share components by combining functions. In addition, to provide a new handset structure which can prevent an increase in capital investment and can satisfy customer's requirements by providing a highly reliable product in which parts are not damaged even in the event of a drop impact. It is in.

[0009]

In order to achieve the above object, a handset structure according to the present invention comprises a handset unit for converting voice into an electric signal in a handset connected to a telephone or the like. Is converted to voice by a weight that is mounted to optimize the weight of the handset.

The handset is covered by an upper housing and a lower housing, and the inside thereof is a transmitter unit for converting a voice into an electric signal, a receiver unit for converting an electric signal into a voice, and is electrically connected to a telephone body. A modular connector for connecting a curl cord for further connection, and furthermore, a handset unit is provided between each handset unit and the fixed part with a sealing ring-shaped rubber spacer at each fixed part of the handset unit inside the lower housing. Have been.

[0011] At both ends of the lower housing, a fixed portion on which a transmitter and a receiver unit are mounted are provided, and at the outer peripheral portions of both ends, locking recesses for nail engagement with the upper housing are provided. . A screw hole with the upper housing is provided near the center.

At the inner periphery of each end of the upper housing, a locking projection is provided having a shape, a position, and a size that fits into the locking recess of the lower housing. Further, a screw fixing boss is provided inside the vicinity of the center at a position corresponding to the screw hole position of the lower housing.

The weight for fixing the handset unit is
Both ends have contact surfaces with a first ramp and a second ramp to secure each handset unit. Also,
In order to hold and fix each handset unit, it has a flat portion that can be mounted inside the lower housing, and is provided with two elliptical mounting through holes.

Further, the contact surface of the second inclined portion, which is a fixing portion on the receiver unit side, is wider than the flat portion so that a plurality of receiver units having different shapes can be fixed. The tip has two steps at both sides and the center. The two sides of the tip are formed as contact surfaces that are one step further down from the second inclined portion.

[0015]

The receiver unit fixing portion of the weight is wider than the flat portion so that the contact surface of the second inclined portion can fix a plurality of receiver units having different shapes. Both sides and the center have a two-stage shape. The two sides of the tip are formed as contact surfaces that are one step further down from the second inclined portion. As a result, a plurality of handset units having different dimensions can be fixed by one weight, which has an effect on commonality of parts and reduction of capital investment.

Further, since both ends of the weight are not pressed by the ribs provided on the upper case, even when the weight is accidentally dropped, the force caused by the lifting of the handset unit is directly lifted through the weight. It is possible to provide a highly reliable handset that does not apply any load to the ribs of the housing, or, more specifically, the fitting claws of the upper and lower housings, is less likely to be damaged.

[0017]

Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, and FIG. 2 is a perspective view showing an embodiment of a weight which is one of the main parts of a handset structure according to the present invention. FIG. 3 is a sectional view showing the first embodiment of the present invention.

Referring to FIGS. 1 and 2, according to a first embodiment of the present invention, in a handset 11 connected to a telephone or the like, a transmitter unit 4 for converting voice into an electric signal and an electric signal are transmitted. The receiver unit 5 for converting to voice is fixed by a weight 3 which is a plate-shaped metal plate having a plurality of surfaces and mounted to optimize the weight of the handset.

The handset 11 is covered by an upper case 1 and a lower case 2, and includes a transmitter unit 4 for converting a sound into an electric signal, a receiver unit 5 for converting an electric signal into a sound, A modular connector 7 for curl cord connection for electrical connection to the telephone body, and furthermore, the handset units 4 and 5 are hermetically sealed in the fixed parts 2a and 2b of the handset units 4 and 5 inside the lower housing 2. Elastic rubber spacer 9 for use in each handset unit and the fixed part 2a,
2b.

At both ends of the lower housing 2, fixed parts 2a on which a transmitter unit 4 and a receiver unit 5 are mounted, respectively.
2b are formed, and the outer peripheral portions 2c at both ends are provided with locking recesses 2e for fitting the claws with the upper housing 1. In the vicinity of the center of the lower housing 2, a hole 2d for screwing with the upper housing 1 is provided.

Each of the outer inner sides 1a of both ends of the upper housing 1 is provided with a locking projection 16 having a shape, a position and a size to be fitted to the locking recess 2e of the lower housing 2. Further, inside the vicinity of the center of the upper housing 1, a screw fixing boss 1b is provided at a position corresponding to the position of the screw hole 2d of the lower housing 2.

The weight 3 supporting the handset units 4 and 5 has a first inclined portion 3a, 3b and a second inclined portion 3 at both ends for locking the respective handset units 4, 5 respectively.
c, 3d, 3h. Also,
The central portion of the weight 3 has a flat portion 3e that can be attached to the inside of the lower housing 2 so as to hold the handset units 4, 5 from above and to lock them, and has an elliptical mounting through hole 3f.
Are provided.

Further, the contact surfaces of the second inclined portions 3d and 3h, which are fixed portions of the weight 3 on the side of the receiver unit 5, are connected to the receiver units 5 and 6 having a plurality of different shapes (see FIG. 4 for the receiver unit 6). ) Can be fixed, the width is 3 g wider than the flat portion, and the front end has an inclined portion 3d on both sides and a central inclined portion 3h in a two-step shape. The inclined portions 3d on both sides of the front end are formed as contact surfaces that are one step lower from the second inclined portions 3h.

As a concrete assembling method, the lower housing 2
A transmitter unit 4 and a receiver unit 5 provided respectively for
Are provided, and inside these circular ribs 2f, 2g, mounting surfaces (fixing parts) 2a, 2a to which the handset units 4, 5 are fixed.
b, a ring-shaped rubber spacer 9 is disposed on the lower housing 2.
And the top surface 4 of the handset unit
a and 5a are sealed.

The handset units 4 and 5 are provided with curl codes 8 for exchanging electric signals and voice signals with the telephone body.
The connection is made by a telescopic connection cord called a "flexible connection cord".

Therefore, the connection cord 8 is used for the handset 1
The relay modular connector 7 to be connected to 1 is arranged. A lead wire 7a is provided from the modular connector 7 for connection to the handset units 4, 5, and electrical connection is made. The modular connector 7 has a rib-shaped fixing portion 2h provided at one end of a transmitter unit fixing portion 2a which is already a part of the lower housing 2.
Attached to.

After the handset units 4 and 5 are installed on the lower housing 2 via the rubber spacer 9, the weight 3 is mounted from above. First according to the present invention
In the embodiment of the present invention, the receiver unit 5 is a unit that is normally used, and the fixing by the weight 3 is performed by the second inclined portion 3d disposed outside the wide portion on the receiver side. Step part flat part 5 with small diameter
b. On the other hand, the transmitter unit 4 presses the small diameter top surface 4b with the contact surface 3c of the second inclined portion of the weight 3 on the transmitter side.

After the mounting of the handset units 4, 5, the modular connector 7, and the weight 3, the upper housing 1 is set from above the lower housing 2, and the locking projections 16 and the locking recesses 2e at both ends are set.
Is fitted. Finally, the screw 10 is fastened to the screw fixing portion 2d provided near the center of the lower housing 2 to complete the entire fitting.

When the upper and lower housings 1 and 2 are tightened by the screw 10, second ends formed at both ends of the weight 3 are formed.
The handset units 4 and 5 are slightly pressed down by the inclined portions 3c, 3d and 3h, and the degree of sealing is increased by utilizing the compression deformation of the rubber spacer 9.

Next, a second embodiment according to the present invention in which a hearing aid type receiver unit 6 using the same weight 3 and utilizing a magnetic flux effective for the hearing impaired person is mounted.
An example will be described.

FIG. 4 is a sectional view showing a second embodiment according to the present invention.

Referring to FIG. 4, since the second embodiment according to the present invention is basically the same as the first embodiment, a detailed description will be omitted and only differences will be described. What presses down and fixes the hearing aid receiver 6 is the inclined contact surface 3h at the center of the second inclined portion of the weight 3 on the receiver side. The slope contact surface 3h presses the small diameter top surface 6a of the hearing aid type receiver unit 6. The distance and height difference between the wide side inclined portion 3d and the central inclined portion 3h of the second inclined portion on the handset side are appropriately set according to the specifications of the handset units 5 and 6 to be used.

Although the present embodiment has been described focusing on the receiver unit side, it is also possible to fix transmitter units having different dimensions, shapes, specifications, etc. with the same weight on the transmitter side using the same weight. .

FIG. 5 is a perspective view showing a modification of the weight which is one of the main parts of the present invention.

As shown in FIG. 5, it goes without saying that the same effect can be obtained by applying the concept of the present invention to both handsets. That is, the same inclined portions as the first and second inclined portions 3d and 3h on the receiver side are formed at the first and second inclined portions 3a and 3c on the transmitter side.

[0037]

The present invention is constructed and operates as described above. Therefore, according to the present invention, the following effects can be obtained.

The first effect is that the second inclined portion, which is the fixing portion of the receiver unit of the weight, is wide and the both ends and the central portion are stepped, so that the receiver units having different external shapes can be fixed by the same component. It is. Therefore, the effect of sharing parts can be obtained.

The second effect is that, since the weight is not held down by the ribs arranged inside the upper housing, even if it is accidentally dropped, a drop impact force is not directly applied to the parts, so that the reliability is improved. high.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment according to the present invention.

FIG. 2 is a perspective view of a weight used in the first embodiment of the present invention.

FIG. 3 is a sectional view showing a first embodiment according to the present invention.

FIG. 4 is a sectional view showing a second embodiment according to the present invention.

FIG. 5 is a perspective view showing another embodiment of the weight according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Upper case 2 ... Lower case 3 ... Weight 4 ... Transmitter unit 5 ... Receiver unit 6 ... Hearing aid type receiver unit 7 ... Modular connector 8 ... Curl cord 9 ... Rubber spacer 10 ... Screw

Claims (3)

(57) [Claims] In a handset connected to a telephone or the like, a handset unit for converting voice into an electric signal and a handset unit for converting an electric signal into voice are mounted to optimize the weight of the handset. The handset is covered by an upper case and a lower case, and the inside of the handset converts the sound into an electric signal and the electric signal into sound. The handset unit to be converted, a modular connector for curl cord connection for electrical connection with the telephone body, and furthermore, the handset unit is attached to each fixed part of the handset unit inside the lower housing, for sealing. A ring-shaped rubber spacer is provided between each of the handset units and the fixed part, and at both ends of the lower housing, a fixed part on which the handset and the handset unit are mounted respectively. The outer periphery of both ends is provided with a locking recess for engaging the claw with the upper housing, and near the center thereof, a hole for screwing with the upper housing is provided. At the outer periphery of both ends, a locking projection is provided with a shape, position, and size that fits with the locking recess of the lower housing, and further on the inner side near the center, it matches the screw hole position of the lower housing. A screw fixing boss is provided at a position, and the weight for fixing the handset unit has two ends.
Has a first ramp for securing each handset unit.
A lower housing having a contact surface having a second inclined portion for holding and fixing each handset unit;
With a flat part that can be mounted inside the unit, and an elliptical mounting
Two through holes are provided, and the second unit is a fixing unit on the receiver unit side.
The contact surface of the inclined part of the
Wide with respect to the flat part to enable fixing
The two sides and the center of the tip are formed in two steps,
The both sides of the tip are one step further downward from the second inclined portion.
A handset structure formed of a pointed contact surface . 2. A contact surface of the second inclined portion, which is a fixing portion on the side of the transmitter unit, is wider than the flat portion so that transmitter units having different shapes can be fixed. It is further characterized in that both sides and the center of the tip are formed in a two-step shape, and the both sides of the tip are formed with a contact surface that is one step further down from the second inclined portion. The handset structure of claim 1 , wherein 3. The apparatus according to claim 1, wherein the transmitter unit and the receiver unit are locked between the lower housing and the weight via the rubber spacer without being fixed. 2. The handset structure according to 1.