JP3373598B2 - Phone operation button mounting structure - Google Patents

Abstract

PURPOSE:To provide the operation button mounting structure for telephone set made so as to deal with the specifications of plural telephone sets by performing simple exchange work from the outside. CONSTITUTION:An operation button unit 1 to change the number of line wire buttons 3 as operation buttons is provided inside a notch provided on a telephone set upper case 4 to be linked to a telephone set lower case 8. Work holes 8a and 8b are provided at the telephone set lower case 8 so that a line wire button panel 2 and the line wire buttons 3 can be attached and detached from the outside of the operation button unit 1 through the work holes 8a and 8b. Thus, when changing the specification from the line of a line wire 1 to the line of a line wire 2, it can be dealt with only by exchanging the operation button unit 1 to an operation button unit provided with two line wire buttons.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the operation of a telephone (button telephone) having a plurality of operation buttons corresponding to various telephone services such as a numeric keypad button, a # button, and an outside line button on the front side of a telephone upper case. It relates to a button mounting structure.

[0002]

2. Description of the Related Art In a telephone such as a button telephone, it may be necessary to change the system scale and the function level in accordance with the user's wishes. At the time of the change, the number of operation buttons mounted on the telephone is also changed. Will be. In that case, the mounting structure part of the operation button is a functionally important part, and if there is dirt such as dust or defective assembly, it will cause functional failure, so make sure to meet the specifications required by the manufacturing side (factory). It is supposed to be assembled and shipped.

For example, in the case of a telephone applied to a home telephone system, a telephone 50 for one external line as shown in FIG. 5 and a telephone 60 for two external lines as shown in FIG. 6 depending on the number of external lines to be connected. 2 types of telephones having different specifications are provided, in which one or two outside line buttons 51 and 61 as operation buttons are mounted on the surfaces of telephone upper cases 52 and 62.

The telephones 50 and 60, as shown in FIG.
Various operation buttons such as the outside line buttons 51 and 61 and a numeric keypad button, and a rubber switch 5 located on the back of them.
Printed circuit boards 54 and 64 for housing 3, 63 and the like, and printed circuit boards 55 and 6 coupled to the printed circuit boards 54 and 64.
5 and telephone lower cases 56, 66 and the like which are connected to the telephone upper cases 52, 62.

The telephone 60 of FIG. 6 can be used not only for two external lines but also for one external line. That is, when only one line is connected to the outside line, only one outside line button is used, and the remaining outside line buttons are left unconnected, so that the telephone line for one outside line is not changed. Can be used as

[0006]

However, in the above conventional example, when a user who purchases the telephone 50 for one external line in FIG. 5 desires to upgrade the system for two external lines, In order to change the number of outside lines of the operation buttons, the structure of No. 5 is used. Therefore, after disassembling the upper and lower phone cases, the related parts inside are also disassembled, and the parts to be changed (at least the operation buttons 51 and the upper case of the phone). 52) needs to be replaced with a desired part, so that the work cannot be performed outside the factory, and eventually the telephone line 60 for two external lines in FIG. 6 must be replaced, which is an economical burden on the user. Will be forced.

Further, as described above, one external line / two external lines
When coping with the common use for the line, if the line is used as it is for the external line 1 as it is, the external line 2 is displayed as shown in FIG. 6 and the external line button to which the external line is not actually connected is present. There is a risk of operating the outside line 2 button, which does not actually work, by mistake. In particular, in the case of a home telephone system, such an erroneous operation also operates a child, an elderly person, etc., so that there is a fear that it may be erroneously determined to be a failure or the like. Therefore, it is not preferable to leave the operation buttons that are unnecessary and do not operate.

It is an object of the present invention to provide a structure for mounting operation buttons on a telephone, which can deal with a plurality of telephone specifications by a simple exchange work from the outside.

[0009]

To this end, the operation button mounting structure of a telephone of the present invention has a telephone having an operation button corresponding to various telephone services on the surface of a telephone upper case which is connected to a telephone lower case. In the above, the telephone upper case is provided with a notch to accommodate an operation button unit in which the number of operation buttons can be changed, the telephone lower case is provided with a working hole, and from the outside of the operation button unit through the working hole. It is characterized in that it can be attached and detached.

[0010]

According to the present invention, when the user desires to change the specifications of the telephone, the operation button fitted in the notch provided in the upper case of the telephone without disassembling the upper and lower telephone cases. The unit is removed using the work hole for attaching and detaching the operation button unit provided in the lower case of the telephone, and the operation button unit with the desired number of operation buttons is fitted into the notch and fixed using the work hole. As a result, the specification change work can be performed extremely easily. Therefore, the user does not need to buy a new telephone, which reduces the financial burden and improves the service. Also,
Since the operation buttons which are unnecessary and do not operate are not generated, the above-mentioned erroneous operation and erroneous judgment of failure are eliminated. In addition, if a thin film or a disc with slits that covers the working holes is integrally formed with the lower case so that the thin film or the discs with slits can be pulled out from the outside, work holes that are not used at the time of factory shipment It is even more preferable because the parts inside the telephone, the telephone, and the screws cannot be seen from the outside.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 (a)-(c) and 2 (a)-
(C) is a plan view, a longitudinal sectional view, and a lateral sectional view, respectively, showing the operation button mounting structure of the telephone of the first embodiment of the present invention,
Fig. 1 shows the structure of a telephone for one external line,
FIG. 2 shows the structure of a telephone for two external lines.
At the time of factory shipment, the telephone adopting the structure of FIG. 1 has the same appearance as that of FIG. 5, and the telephone adopting the structure of FIG. 2 has the same appearance as that of FIG.

First, the case of a telephone line for one external line will be described with reference to FIGS. 1 (a)-
In (c), 1 is an operation button unit for mounting an outside line button. The operation button unit 1 includes an elliptical outside line button panel 2 and an outside line button 3. The outside line button panel 2 has a flange portion 2a formed with an oval notch (not shown) for mounting the outside line button 3.
1 and screw bosses 2b and 2c that are formed near the left and right ends of the flange portion 2a and extend downwards.
It has a tab 2e formed by bending the lower end of the vertical rib 2d as shown in (c). The flange portion 2a engages with the flange portion 4a formed on the lower surface of the notch when the outer line button panel 2 is inserted into the notch for the panel provided in the telephone upper case 4 and the surfaces are aligned with each other. There is no such thing. The telephone upper case 4 is formed with vertical ribs 4b and 4c surrounding the outside line button panel 2 to protect components inside the telephone, and the lower end of the vertical rib 4c is engaged with the claw 2e. To meet.

The outside wire button 3 is a box-shaped hollow member whose bottom surface is open, and the lower end portion of the vertical rib thereof engages with the claw 2a which engages the inner peripheral side portion of the vertical rib 2d of the outside wire button panel 2.
Are formed. A pressing member 3b is further formed on the center line in the longitudinal direction of the outside line button 3, and the pressing member 3b abuts on the diaphragm portions 7a and 7b of the two rubber switches 6a and 6b mounted on the printed circuit board 5.
At this time, since the rubber switches 6a and 6b are elastic members, the outside line button 3 is biased upward. The printed circuit board 5 is coupled to the telephone lower case 8 via a printed circuit board (not shown) or the like. The telephone lower case 8 is joined to the telephone upper case 4 at a portion not shown.

By the way, in the above-mentioned state, the external line button panel 2 is temporarily fixed so as not to come off from the telephone upper case 4 by the engagement of the lower end of the vertical rib 4c of the telephone upper case 4 and the tab 2e of the external line button panel 2. 1B, as shown in FIG. 1B, the screw 9 is screwed from the back surface side of the printed circuit board 5 to the screw boss 2b by a driver or the like through the two work holes 8a and 8b provided in the telephone lower case 8. By screwing into 2c and tightening, the upper and lower telephone cases can be completely fixed without disassembling. Here, cylindrical portions 8c and 8d for protecting parts and the like inside the telephone are formed above the work holes 8a and 8b. A fixing mechanism using a spring and a spring receiver may be used instead of the fixing mechanism using the screw and the screw boss.

Next, a case of a telephone line for two external lines will be described with reference to FIGS. 2A to 2C. For simplification, description of the same parts as in FIG. 1 will be omitted and only different parts will be described. Will be described. In FIGS. 2A to 2C, reference numeral 11 is an operation button unit for mounting an outside line button. The operation button unit 11 includes an outside line button panel 12 and outside line buttons 13a and 13b. The outside line button panel 12 is provided with a central rib 12f for partitioning the outside line buttons 13a and 13b in order to connect the outside line 2 lines (outside line 1 and outside line 2) to the outside line button 3 as an operation button. The outside line button panel 2 of FIG. Therefore, the rubber switches operated by operating the outside line buttons 13a and 13b operate independently.

In the above, the outside line button 3 is used according to the number of outside lines (1 line / 2 lines) connected to the telephone of this example.
The correspondence between the line and the outside line is set in advance by software. Therefore, it goes without saying that this setting is changed when the specifications are changed.

Next, a description will be given of specification change work by an electrician or the like when the user desires to change the telephone specifications from one line for the outside line to two lines for the outside line. First, as shown in FIG. 3A, screws screwed into the screw bosses 2b and 2c from the back surface side of the printed circuit board 5 by a driver or the like through the two work holes 8a and 8b provided in the telephone lower case 8. Loosen 9 halfway and push up the screw head. As a result, the engagement between the claw 2e of the outside wire button panel 2 and the lower end of the vertical rib 4c (see FIG. 1C) is released, and the outside wire button panel 2 floats as shown in FIG. 3B. In this state, the screw 9 is further loosened to separate the external line button panel 2 from the printed circuit board 5, and the external line button panel 2 and the external line button 3 are removed from the telephone body.

After that, optional parts (outer wire button panel and outer wire button) having specifications desired by the user are prepared, and mounting work is performed in the same manner as described above. Needless to say, the outside line buttons have the same function in the telephone set after the specification change.

The above-mentioned specification changing work can be carried out by diverting commonly used parts as they are and by inexpensively providing unitized optional parts for exchanging only specific parts related to the specification change. Moreover, it can be carried out without disassembling the upper and lower telephone cases. Therefore, the user does not need to purchase a new phone, which reduces the financial burden. In addition, when the above-mentioned specification is changed, unnecessary and non-operational operation buttons are not generated, so that the above-mentioned erroneous operation and erroneous determination of failure are eliminated.

4 (a) and 4 (b) are vertical sectional views showing the operation button mounting structure of the telephone of the second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals. And the description is omitted. In the second embodiment, the construction of the first embodiment is modified by making the working holes, parts inside the telephone set, screws, etc., which are not used at the time of factory shipment, invisible. That is, in FIG. 4 (a), the thin film 21 is integrally formed in advance in portions corresponding to the work holes 8a, 8b of the telephone lower case 8, and in FIG. 4 (b), the work holes 8a, 8b of the telephone lower case 8 are formed. The disk 22 with slits is integrally formed in advance in the corresponding portion.

In this way, when it becomes necessary to change the telephone specifications from one line for the outside line to two lines for the outside line, the thin film 21 or the disc 22 with slits can be pulled out from the outside by a driver or the like. This improves the appearance. Even with the structure in which the work hole is closed as described above, at the time of shipment from the factory, the upper and lower phone cases are disassembled and the assembly work is performed. Needless to say.

[0022]

As described above, according to the present invention, when the user desires to change the specifications of the telephone, the above configuration does not require disassembling the upper and lower telephone cases and the telephone case is provided on the upper case. The operation button unit fitted in the notch is removed using the operation hole for attaching and detaching the operation button unit provided in the lower case of the telephone, and the operation button unit with the desired number of operation buttons is fitted in the notch. By fixing them together by using the working holes, the specification changing work can be performed very easily. Therefore, the user does not need to buy a new telephone, which reduces the financial burden and improves the service. Further, since no operation buttons that are unnecessary and do not operate do not occur, the above-mentioned erroneous operation and erroneous determination of failure are eliminated. In addition, if a thin film or a disc with slits that covers the working holes is integrally formed with the lower case so that the thin film or the discs with slits can be pulled out from the outside, work holes that are not used at the time of factory shipment Since the parts inside the phone and the phone, screws, etc. are hidden from the outside,
More preferable.

[Brief description of drawings]

1A to 1C are respectively a plan view, a vertical sectional view, and a plan view showing an operating button mounting structure of a telephone according to a first embodiment of the present invention.
FIG.

2A to 2C are a plan view, a vertical cross-sectional view, and a plan view showing an operating button mounting structure of the telephone of the first embodiment of the present invention, respectively.
FIG.

3 (a) and 3 (b) are diagrams for explaining a telephone specification changing operation in the first embodiment, respectively.

4 (a) and 4 (b) are vertical cross-sectional views showing the operation button mounting structure of the telephone of the second embodiment of the present invention.

FIG. 5 is a diagram for explaining a conventional technique.

FIG. 6 is a diagram for explaining a conventional technique.

FIG. 7 is a diagram for explaining a conventional technique.

[Explanation of symbols]

1 Operation button unit 2 outside line button panel 3 outside line button (operation button) 4 Phone upper case 5 printed circuit boards 6a, 6b Rubber switch 7a, 7b Diaphragm part 8 Phone lower case 9 screws 11 Operation button unit 12 Outside line button panel 13a, 13b Outside line button

─────────────────────────────────────────────────── ─── Continuation of the front page (73) Patent holder 000192796 Kanda Communication Industry Co., Ltd. 1902 Sakai, Atsugi-shi, Kanagawa (72) Inventor Motohisa Motohisa 2-18-2 Nishigotanda, Shinagawa-ku, Tokyo Hasegawa Co., Ltd. Denki Seisakusho (72) Inventor Hiroshi Sakaino 1-6-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Within Nippon Telegraph and Telephone Corporation (72) Koichi Hara 6-10-13 Nakanobu, Shinagawa-ku, Tokyo Daiko Denki Seisakusho Co., Ltd. (72) Inventor Yu Fukaya 2-23-2, Nishigotanda, Shinagawa-ku, Tokyo Kanda Communication Industry Co., Ltd. (56) References: SHO 61-62658 (JP, U) SHOAI HEI 5-6961 (JP , U) Actually open 1-169853 (JP, U) Actually open 60-101779 (JP, U) Actually open 61-104661 (JP, U) Actually open 63-153643 (JP, U) Actually open 5-6960 JP, U) (58) investigated the field (Int.Cl. ^7, DB name) H04M 1/23

Claims (2)

(57) [Claims] 1. A telephone having an operation button corresponding to various telephone services on a surface of a telephone upper case connected to a telephone lower case, wherein a notch is provided in the telephone upper case and the number of operation buttons is changed therein. An operation button mounting structure for a telephone, characterized in that the operation button unit to be obtained is accommodated, a work hole is provided in the telephone lower case, and the operation button unit can be detached from the outside of the operation button unit through the work hole. 2. A thin film or a disc with slits that covers the working hole is integrally molded with the lower case so that the thin film or the disc with slits can be pulled out from the outside. The operation button mounting structure of the described telephone.