JPS5936049Y2 - Telephone dial support device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dial support device for a telephone, and in particular, a dial support plate fixing device for positioning and fixing a support plate when it is attached to a telephone housing via a dial support plate. Regarding.

As is well known, a telephone set includes a handset, a dial, a circuit network, a bell, etc., and each component other than the handset is assembled into a housing.

Conventionally, there are various ways to mount each component to the casing, but casing assembly reduces the number of supporting members or mounting members for the components, making it easy to assemble them, and reducing manufacturing costs. Needless to say, it is hoped that there will be no such thing.

Therefore, if a plurality of parts can be effectively mounted using one mounting member when assembling a telephone, rationalization will be achieved accordingly.

An object of the present invention is to provide a dial support device that can easily and reliably position and fix a dial and a circuit board to a housing without increasing the number of members, in order to satisfy the above-mentioned needs.

In the present invention, at least two positioning grooves are formed in each of the bottom plate and the circuit board disposed on the bottom plate, into which the ends of the dial support plate are inserted, and the dial support plate is secured to prevent the circuit board from coming out. In addition, the above-mentioned object is distantly related by making the telephone housing including the bottom plate also have the function of preventing the support plate from being removed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of an in-home telephone 1 to which a dial support device according to an embodiment of the present invention is applied, with main parts cut away to illustrate the present invention.

The dial 6 is exposed to the outside from the main housing 3, and the main housing 3
The handset 2 can be placed on top of the .

The bottom plate 4 serves as a lower casing, and the main casing 3 and the bottom plate 4 constitute a telephone casing.

Note that the arrows in FIG. 1 indicate the direction of assembly when assembling the dial 6, which will be described in more detail later.

The dial 6 in the illustrated embodiment has a flange plate 14 on its lower surface.
A pair of dial support plates 7, 7' are fixed to the lower side of this flange plate by set screws 10, 10'.

A circuit board 5 is installed on the inner surface of the bottom plate 4, and functionally necessary circuit components 15 are mounted on this board.

FIG. 2 is a perspective view showing the above-mentioned dial support plate 7, circuit board 5, and bottom plate 4 disassembled in order, and FIG. 3 is a partial perspective view of the assembled state. .

Referring to these figures, a stepped portion 7a is formed at the lower end of the dial support plate 7, thereby forming a narrow insertion portion 9.
is formed.

Square holes (positioning grooves) 11.8 into which the insertion portions 9 of the dial support plate 7 are tightly inserted are formed at corresponding positions in the circuit board 5 and the bottom plate 4, respectively.

The same applies to the other dial support plate 7' side.

To assemble the telephone 1 having such a configuration, first place the circuit board 5 on the bottom plate 4 with the square holes 11 and 8 aligned, and then insert the steps of the dial support plate 7 from above the circuit board. Insert the insertion part 9 at the tip of the support plate into the square holes 11 and 8 until the part 7a comes into contact with the circuit board.

As a result, the circuit board 5 is positioned in the horizontal direction, and is prevented from being pulled out upward by the stepped portion 7a of the dial support plate 7, and thus is fixed.

Finally, by covering and fixing the main housing 3 over the bottom plate 4 as shown in FIG. 1, the main housing 3 and the flange portion 14 provided on the dial 6 or the upper part of the dial support plate engage with each other. Dial support plate 7 between main housing 3 and bottom plate 4
And the circuit board 5 is finally fixed.

Note that there is no problem even if the dial support plates 7, 7' are both connected.

FIGS. 4 and 5 show other embodiments of the present invention, and are perspective views corresponding to FIGS. 2 and 3.

In this embodiment, the inserts 9, 9 of the dial support plate 7, 7'
A pair of vertical grooves 13, 13 and 13', 13' are formed in each of the grooves 13, 13' and 13' to allow slight displacement as shown in the figure.
In addition, a locking protrusion 16 (only one of which is shown in FIG. 4) is formed on the side surface near the tip of each of the protrusions.

Dial support plates 7 and 7' are connected to square holes 11, 8 and 11.
', 8' and its stepped portion 7a.

If the locking protrusion 16 is locked to the lower side of the bottom plate 4 while the dial support plate 7a' is in contact with the circuit board 5, this prevents the dial support plate from coming off, and the main housing 3 This improves work efficiency when covering.

As described above, according to the present invention, the dial support plate for fixing the dial can also fix the circuit board at the same time, and furthermore, it is easy to assemble them, and the assembly of the telephone can reduce the labor and manufacturing costs. I can do it.

[Brief explanation of the drawing]

1 is a partially cutaway front view of a telephone to which a dial support device according to an embodiment of the present invention is applied; FIG. 2 is a partial perspective view showing the assembly order of the telephone shown in FIG. 1; FIG. 3 is a partial perspective view showing the circuit board and dial support plate assembled to the bottom plate, FIGS. 4 and 5 show other embodiments of the present invention, and FIG. and FIG. 4 is a perspective view corresponding to FIG. 3.

Claims (1)

[Scope of utility model registration request] forming at least two positioning grooves into each of the bottom plate and the circuit board disposed on the bottom plate, into which the end portion of the dial support plate is inserted, and the support plate prevents the circuit board from coming out; A dial support device for a telephone, characterized in that a telephone housing including the bottom plate is used to prevent the support plate from being removed.