JPH0336462B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting structure for a multifunctional telephone device, etc., which is equipped with a plurality of operation buttons (including a dial button).

In recent years, in telephone equipment that has become multi-functional, the number of displays (such as LEDs) and operation buttons on its operation surface has increased as the functions have increased. Most of these indicators use LEDs and are mounted on printed circuit boards.
Further, the operation buttons are often independent or integrally formed with the rubber switch.

[Conventional technology] Conventionally, displays, operation buttons, etc. have been installed from the back of the key panel, but it takes time to align them, and the number of man-hours increases further as the number of displays and operation buttons increases. There is a tendency to

FIG. 5 is an exploded perspective view of a conventional telephone terminal.
In FIG. 5, the telephone terminal is finally completed by assembling the lower case 10 and the upper case and fastening them with screws. It is housed and fixed in a case 10, and other necessary parts, such as a hook button 120, are attached to a mounting position of a handset (not shown). Screw mounting part 1
40 and 130 have the lower case on its back side (bottom plate side)
Provided for attachment to the upper case.

Furthermore, a printed board 201 on which a contact circuit when an operation button or the like is pressed is printed, a rubber switch 202 corresponding to the contact circuit, and a key top 203 are superimposed on the upper case 20 from the upper side of the upper case. On the other hand, from the upper side of the upper case, there is a display plate stopper 2 for LCD etc.
05. Overlap the display board 206, key panel 207, display board protection board 208, and name strip presser board 209,
The upper case is assembled and mounted by fixing it with screws 220, 220', etc., and attaching the entire upper case as a center to a thick part of the key panel 207, for example, a mold using screws 210. In addition, the display plate holding plates 209, 240 and the display plate protection plate 208 have a cutout on the length of the upper case 20, and the key panel 207.
It is pushed into the recess and fixed.

[Problem that the invention seeks to solve]

The assembly structure of each part of a conventional telephone terminal is functionally divided and mounted, with the upper case centered on the display part from the top and the operation buttons from the bottom, but in order to install each part, Parts and the like have to be inserted from both the top and bottom, resulting in poor workability, and as the number of operation buttons increases, it becomes increasingly difficult to properly connect and fit the whole thing together.

[Means for solving problems]

In order to solve this problem, the present invention provides a recess in which a display component and an operating switch are positioned and placed in a predetermined position on the surface side of an upper case in a telephone terminal in which an upper case and a lower case are combined and integrated. A display component, an operation switch, and a key top are placed in the recess at the predetermined positions from the front side, and a display panel and a key panel are stacked and placed from the front side. The locking portion of the key panel is positioned and fixed by being fitted and locked into the engaging portion of the upper case.

[Effect]

The point of view of the present invention is that the parts to be installed and housed in the upper case are stacked one after the other from the top, and the upper case itself functions like a bottom plate, so even manual labor is not required, simply stacking the necessary parts one after another in the appropriate positions. Furthermore, even when mechanizing the means for supplying each part, the loading machine can be automated (robotized).
Facilitates manufacturing and assembly.

〔Example〕

FIG. 1 shows an exploded perspective view of a telephone terminal as an embodiment of the present invention, and is also a diagram for explaining component mounting and assembly. FIGS. 2 and 3 are partial cross-sectional views of the mounting and assembly process, and show the coupling relationship of each component.

FIG. 4 is a perspective view of a completed telephone terminal according to the present invention.

First, in FIG. 1, a printed board 11 on which circuit components necessary for a telephone are mounted is attached to a lower case 1 with screws 15, and is housed and fixed therein, as in the conventional case (FIG. 5). In addition, other parts such as the hook button 12 are used as a handset (not shown).
It is installed at a predetermined location in the mounting position of the device. The screw attachment parts 14 and 13 are provided for attaching the lower case to the upper case from the back side (bottom plate side).

On the other hand, the upper case 2 has a completely different mounting structure from the conventional mounting structure. A recess 22 for placing a printed board 221 on which a keyboard switch pattern is formed, and a recess 23 for placing a display component 25 such as a liquid crystal on the upper case 2 are formed at predetermined positions. Printed board 2 is placed in each of these recesses.
21. Place the rubber switch 222 with the key top 223 in a predetermined position, and place the display part 25 integrally with the display part keyboard board 251 in a predetermined position on the notch part 23 of the upper case, and then The protection plate 252 and the display panel 26 are placed, and the display panel 26 is locked at a predetermined position on the upper case 2 by the locking portion 261 in the longitudinal direction.

Then, the key panel 27 is attached to the entire operation button part and display part, and the locking parts 2 provided on both sides of the key panel
71, 271' are engaged with predetermined notched holes in the upper case to be attached. The marking strip holders 24, 272 are attached in the same manner as in the past.

Stack the parts in order on the upper case as above,
The whole is fixed with a key panel, and finally the upper case and lower case are combined and screwed together to complete the process.

The printed board 221, rubber switch 222, and key top 223 can be installed by making depressions or holes in predetermined positions on the printed board 221, as shown in FIG. 2, and fitting the protruding portion of the rubber switch 222 into the holes in the printed board. It will be placed. There are various ways to connect the key top 223 and the rubber switch 222, but basically it is sufficient that the center of the key top is hollow and the protruding part of the upper part of the rubber switch is inserted.

On the other hand, the installation of the display part is as shown in Figure 3.
Position and place the mounting plate 251 of the liquid crystal display section 25 using the mounting positioning dowel 29 of the upper case,
The display protection plate 252 is placed on top of it in the same way, and the display panel 26 is attached and fixed from above with the claws of the locking portions 261, and the whole is fixed by the claws of the locking portions 271 of the key panel 27. do. In addition, the upper case,
The lower case etc. are formed by molding, for example.

As shown in the overall external perspective view of Fig. 4,
The upper case 2, the lower case 1, the operation button parts 4, 4', and the display part 3 are integrally formed, and a handset 5 is connected and mounted thereon.

〔effect〕

According to the present invention, parts such as displays and operation buttons can be assembled and fixed by placing them on the surface of the upper case and stacking them, without having to fix them directly to the key panel. ), and also makes maintenance easier.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a mounting structure in a telephone terminal according to an embodiment of the present invention, FIGS. 2 and 3 are sectional views of the main parts of FIG. 1, and FIG. 4 is a completed telephone terminal. FIG. 5 is an exploded perspective view of a conventional telephone terminal. 1...Lower case, 2...Upper case, 11, 22
1...Printed board, 222...Rubber switch,
25...display section, 26...display panel, 27...
key panel.

Claims (1)

[Claims] 1. In a telephone terminal in which an upper case and a lower case are combined and integrated, a recess is provided on the surface side of the upper case in which a display component and an operation switch are placed in a predetermined position, and the display component and the operation switch are placed in the recess. An operating switch and a key top are arranged and mounted at the above-mentioned predetermined positions from the front side, and furthermore, a display panel and a key panel are stacked and mounted from the front side, and the locking part of the key panel is attached to the upper case. A mounting structure for an operating section in a telephone terminal, characterized in that the operation section is positioned and fixed by being fitted and locked into an engaging portion of the telephone terminal.