JPH03771Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Purpose of the invention [Field of industrial application] This invention relates to telephones, and particularly to improvements in their configuration and structure.

[Field of technology]

Conventionally, as a telephone operated by pushing a button, the casing has a fifth or sixth button.
As shown in the figure, there was one piece. In this case, an opening group 2a is provided at the upper right of the upper casing 1a, and a function push button group 3a for operating functions such as shortening and holding is projected upward through this opening group 2. . Of course, 7a is a group of dial switch buttons.

In another example, the upper casing was comprised of two parts as shown in Figures 8-9. A window 4b is formed in the upper right corner of the upper casing 1, and a function switch plate is provided to cover this window.An opening group 2b is provided in the function switch plate, and the function switch can be operated from the opening group. Button group 3
b was arranged so as to protrude upward.

[Problem that the invention attempts to solve]

In the former conventional example, the function switch group 3a is directly attached to the upper casing 1a, so even if replacement was necessary, the replacement work had to be performed on the entire upper casing 1a. Furthermore,
Similarly, the assembly work and the inspection work must be performed on the entire upper casing 1a, and there is a problem in that the work is complicated in both cases.

Furthermore, in the latter conventional example, when the function switch plate 5b is attached to the upper casing 1b, sufficient strength cannot be obtained to receive the downward force applied to the function switch plate when the switch is operated, and some kind of reinforcing means is required. There was a problem.

(b) Structure of the device In this device, the main body of the telephone is enclosed by a lower casing and an upper casing, and the upper casing is provided with a dial switch button group and a window. A rectangular function switch board with a group of function switch buttons for performing function operations is placed on the upper edge of two opposite sides of the window, and the corresponding two sides of the function switch board are placed on the upper edge of the two opposite sides of the window. The telephone is characterized in that two corresponding sides of the function switch plate are fixedly attached to the lower edges of the other two opposite sides of the window portion in a detachable manner from below.

In other words, in this invention, the function switch plate is removably placed and fixed on the upper casing, thereby making it replaceable and fixed with sufficient strength against the downward pressing switch operation. That is what it means.

〔Example〕

This invention will be described in detail below based on the embodiments shown in FIGS. 1 to 4. Note that this invention is not limited to this.

As shown in FIGS. 1 and 2, the upper casing 1 of the telephone D has a recess 6 on the left side in which a receiver (not shown) is housed, an opening group 8 on the lower right from which a dial switch button group 7, etc. protrude, and an opening group 8 on the upper right. A window portion 4 is provided respectively. In addition, 22 in FIG. 3 is a lower casing.

The window portion 4 is configured as a rectangular through hole, and includes an upper left edge 9 having a relatively wide width, an upper right edge 10 having a relatively narrow width, and an upper edge 11 and a lower edge 12. . Note that the upper left edge 9 and the upper right window 10 are stepped down in position with respect to the upper edge 11 and the lower edge 12.

Further, as shown in FIG. 2, the upper casing 1 has two cylindrical protrusions 13 and 14 facing downward on the lower surface corresponding to the upper edge 11 and lower edge 12 of the window portion, respectively. ing. A screw hole 16 for receiving a screw 15 is formed in each of these cylindrical projections 13 and 14.

On the other hand, a function switch panel 5 holds a function switch button group 3 for selecting telephone functions, ie, shortening, hold, etc. functions. Note that 2 is an opening group for a group of function switch buttons provided on the function switch plate 5.

As shown in FIG. 2, the function switch plate 5 has a flat left end 17, a right end 18, and a concave upper end 1.
9. It has a concave lower end 20. Furthermore, the upper end portion 19
A hole 21 through which the screw 15 passes is provided in the recessed portion of the lower end portion 20.
Two of each are provided. Further, this recess is dimensioned to fit into the cylindrical projections 13 and 14.

The window 4 and the function switch plate 5 are dimensioned relative to each other so that when the function switch plate 5 is attached to the window 4, the window 4 is just covered.

The upper casing 1 and function switch plate 5 of this telephone D are constructed as described above. Therefore, in order to attach the function switch plate 5 to the upper casing 1, as shown in FIGS. The left edge 17 is positioned above the upper left edge 9 of the window.
Next, the right end portion 18 of the function switch plate is lifted, and the function switch plate 5 is made horizontal and shifted to the right so that the upper right edge portion 10 of the window portion and the right end portion 18 of the function switch plate are opposed to each other. At this time, the concave upper end portion 19 of the function switch plate and the cylindrical projection portion 13 and the concave lower end portion 20 and the cylindrical upper projection portion 14 are in a fitted state. As a result, the function switch plate 5 is connected to the window portion 4 with respect to the upper casing 1.
is firmly positioned.

Furthermore, pass each screw 15 through each hole 21,
It is screwed into the screw hole 16. Here, the function switch plate 5 is fixedly connected to the upper casing 1.

The function switch plate 5 has a left end 17 above the upper left edge 9 of the window portion and a right end 18 with respect to the upper casing 1.
is located above the upper right end portion 10, and has sufficient strength even if a downward force is applied when operating the function switch button group 3.

(c) Effects of the invention This invention allows the telephone functions to be replaced without replacing the entire upper casing because the function switch plate is replaceable, and the function switch plate has a simple structure and sufficient strength. A telephone can be provided that is fixedly coupled to the upper casing.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the essential parts of an embodiment of the telephone of this invention, Fig. 2 is an exploded perspective view of the essential parts as seen from the back side, and Fig. 3 shows the operation switch plate fixedly connected to the upper casing. 4A and 4B are cross-sectional views illustrating the order in which the operation switch plate section cut along the line - in FIG. 1 is attached to the upper casing window, and FIGS.
The figure is a perspective view of a conventional upper casing, FIG. 7 is a cross-sectional view taken along line a-a in FIG. 6, and FIGS. Perspective view of the attached upper casing, No. 10
The figure is a sectional view illustrating a portion cut along line segment bb in FIG. 9. DESCRIPTION OF SYMBOLS 1...Upper casing, 3...Function switch button group, 4...Window section, 5...Function switch board, 9...
...Left edge, 10...Right edge, 11...Top edge, 1
2...Lower edge, 13, 14...Cylindrical protrusion, 1
5...screw, 16...screw hole, 17...left end,
18... Right end portion, 19... Upper end portion, 20... Lower end portion, 21... Screw hole.

Claims (1)

[Scope of Claim for Utility Model Registration] The main body of the telephone is covered by a lower casing and an upper casing, and the upper casing is provided with a dial switch button group and a window. A rectangular function switch board having a group of function switch buttons for performing function operations on the upper edge of two sides, the corresponding two sides of the function switch plate are placed on the upper edge of two opposite sides of the window part, On the other hand, connect the corresponding two sides of the function switch plate to the lower edges of the other two opposite sides of the window,
A telephone set that is fixedly attached so as to be detachable from below.