JPH11195884A - Portable electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce manufacturing processes by comprising a frame member which is molded integrally with a plurality of switch buttons of a high elastic material and can hold other components for a less number of parts and simplified supporting structure for components. SOLUTION: A frame member 22 closes an opening part for forming a part of a case. A button panel part vertically extends relative to an end surface part closing the opening part, and button parts 25, 26, and 27 are formed at the button panel part. The button parts 25, 26, and 27 are so raised as to engage with button holes opened at a front panel while an annular groove is so formed that a projection is formed at a center part on the rear surface of the button parts 25, 26, and 27. The surrounding part of the button parts 25, 26, and 27 is thin in wall due to the annular grove, the thin-wall part acts as a spring, allowing easy displacement in vertical direction relative to the wall thickness of the button parts 25, 26, and 27, and restoring strength is exhibited in response to pressing. In addition, a conductive material is coats the lower surface of the projection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of various small-sized portable electronic devices such as a portable radio device for calling only.

[0002]

2. Description of the Related Art There is fierce competition in the market for various small portable electronic devices such as a portable radio device for calling only, and further miniaturization is required.
In addition to multifunctionalization, miniaturization of components, reduction of the number of manufacturing steps, and the like are being performed in order to reduce manufacturing costs.

Referring to FIGS. 8 to 10, a description will be given of a conventional call-only portable wireless device which is one of various small portable electronic devices.

[0004] A case 3 composed of a front panel 1 and a back panel 2 houses a wiring board 4. A liquid crystal display 5 is mounted on the wiring board 4, and tact switches 6, 7, and 8, which are a plurality of operation switches, a push switch 9 facing a short side of the wiring board 4, and the wiring board 4.
The antenna 11 is mounted along the long side of. A motor 13 for a vibrator is attached to the wiring board 4 via a motor holder 12.

The front panel 1 has a display window 10 for seeing through the liquid crystal display 5 and push buttons 14, 15, 16 for operating the tact switches 6, 7, 8 and the push switch 9. , 17 are provided. These push buttons include button portions 14a, 15a, 16a, 17a exposed to the outside of 14, 15, 16, 17 and the button portions 14a, 1
Arms 14b, 1 extending from 5a, 16a, 17a
5b, 16b, 17b, and the arm portions 14b, 1
5b, 16b, and 17b are thermocompression-bonded to the back surface of the front panel 1, and the arms 14b, 15b, 16b, and 17b
Functions as an elastic member when the buttons 14a, 15a, 16a, 17a are operated. Further, a speaker 18 is also mounted on the wiring board 4 by means such as press-fitting and sticking.

[0006] Slits 19 are formed on both sides of one end face of the front panel 1, and a suspension ring 20 is fitted into the slit 19 from the side by sliding from the side.

[0007]

The tact switches 6, 7, 8 and the push switch 9 are separate components in the above-mentioned conventional call-only portable radio, and are separately mounted on the wiring board 4, and the push buttons 14 are provided. , 15, 16, and 17 are also separate parts, and were individually heat-swaged to the front panel 1. Therefore, the number of parts has increased and the number of manufacturing steps has also increased.

Further, since the motor 13 is provided via the motor holder 12, parts for mounting the motor 13 are required. The liquid crystal display 5 is mounted via a pedestal (not shown). However, the pedestal has only the function of positioning the liquid crystal display 5, and the fixing must be performed by another means. If an impact acts on the suspension ring 20, the front panel 1 may be damaged.

The present invention has been made in view of the above circumstances, and aims to reduce the number of parts, simplify the structure for supporting components, and reduce the number of manufacturing steps.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a portable electronic device having a frame member in which a plurality of switch buttons are integrally formed of a highly elastic material and which can hold other components. The present invention relates to a portable electronic device in which a member holds a wiring board, relates to a portable electronic device in which a cylindrical space is formed in the frame member and a motor is held in the space, and further, a suspension ring is provided in the frame member. The present invention relates to a portable electronic device to be fixed, in which a plurality of parts are integrated, the number of parts is reduced, and the number of work steps is reduced. In addition, when the motor is held by the frame member, it functions as a vibration absorbing member. When the suspension ring is held by the frame member, the suspension ring acts as a cushioning material when an impact is applied to the suspension ring at the time of drop.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

The appearance of the portable radio device only for calling according to this embodiment is the same as that shown in FIG.

The front panel 21 and the back panel (not shown)
Is cut off, and one end face of a case formed by the front panel 21 and the back panel is opened. A frame member 22 made of a highly elastic material such as silicon rubber or synthetic rubber is fitted into the opening. The frame member 22 closes the opening and forms a part of the case.

The frame member 22 will be described with reference to FIGS.

A button panel 24 extends perpendicularly to an end face 23 closing the opening. Buttons 25, 26 and 27 are formed on the button panel 24. The button section 25, 2
6, 27 are button holes 28, 29, 3 formed in the front panel 21.
0, and the button portions 25, 26,
An annular groove is formed on the back surface of the button 27 so that projections 25a, 26a, and 27a are formed at the center, and the periphery of the button portions 25, 26, and 27 is thinned by the annular groove. And the displacement becomes easy in the direction perpendicular to the thickness of the button portions 25, 26, 27, and a restoring force is exerted when pressed. The projections 25a, 26a, 27a
Is coated with a conductive material.

The cross section of the frame member 22 is substantially U-shaped, and is inserted into an end of the wiring board 31. A cylindrical space 32 is formed in the frame member 22, and the motor 13 is provided in the space 32. It is to be fitted. A hanging ring storage hole 33 and a set switch storage hole 34 are formed in the end surface 23 of the frame member 22. A contact pattern (not shown) is formed on a portion of the wiring board 31 facing the protrusions 25a, 26a, 27a.
The projections 25a, 26a, 27a function as switches when they come into contact with the contact patterns. In the figure, reference numeral 40 denotes a speaker cap.

A suspension ring 35 shown in FIG. 6 is fitted in the suspension ring storage hole 33.

The suspension ring 35 is formed by dividing the majority of a strip-shaped plate into two in the width direction and bending one of the divided parts upward and the other downward to form a T-shaped side surface. The bent tip is further bent in the same direction. FIG. 4 shows a state in which the suspension ring 35 is fitted to the frame member 22. Since the bent tip is further bent as described above, the tip engages with the upper and lower surfaces of the frame member 22 so that the suspension ring 35 can be suspended even when a large tensile force is applied to the suspension ring 35. Storage hole 33
There is no escape.

Next, the set switch button 36 stored in the set switch storage hole 34 will be described with reference to FIG.

The set switch button 36 is a rectangular flat plate 37
A tongue 38 protrudes from the base plate 37, and the lower end of the flat plate 37 is bent at a right angle to form a key portion 37a. In a state where the set switch button 36 is stored in the set switch storage hole 34, as shown in FIG. 5, the tongue piece 38 projects through the set switch storage hole 34, and
7 is supported by the frame member 22 and the key 37
a is opposed to the push switch 9.

First, the hanging ring 35 and the set switch button 36 are mounted on the frame member 22. Required electronic components, liquid crystal display 5, antenna 1
1 and the like, and the frame member 22 is inserted into the end of the wiring board 31. The motor 13 is inserted into the space 32, and the motor 13 is fixed to the wiring board 31 via the frame member 22. The frame member 22 functions as a fixing member for the motor 13 and also functions as a vibration absorber for the motor 13.

By attaching the front panel 21 and a back panel (not shown), a portable radio unit for exclusive use of calling is constructed.

By using the frame member 22, the tact switches 6 and 6 in the conventional paging-only portable radio are used.
7, 8, the motor holder 12 can be omitted, and the suspension ring 35 is fixed to the frame member 22 made of an elastic material. Therefore, when the portable radio device for exclusive use of call falls, the suspension ring 35 is directly impacted. In this case, the frame member 22 functions as a buffer to prevent breakage.

To operate the push switch 9, the tongue 38 is pushed in. The flat plate 37 rotates clockwise around the upper end in FIG. 5, and the key portion 37a presses the push switch 9 to operate the switch.

The pedestal for holding the liquid crystal display 5 or the member for fixing the antenna 11 can be formed integrally with the frame member 22. By integrally forming these parts, further parts can be formed. And simplification of the working process can be promoted. Further, the frame member 22
Is exposed so as to constitute a part of the case, but may be a shape in which the entire frame member 22 is housed inside the case.
Furthermore, the switch is constituted by a button formed on the frame member 22 and a contact pattern formed on the wiring board. Even if the number of switches is increased, the number of parts does not increase, and the number of working steps can be increased. Since there is no switch, the cost can be reduced when the number of switches is increased. It is needless to say that a tact switch can be used in place of the contact pattern in the same manner as in the related art, and in this case, there is an effect that the conventional push button can be omitted.

[0026]

As described above, according to the present invention, a plurality of parts are integrated by a frame member made of a highly elastic material, the number of parts is reduced, the number of working steps is reduced, and a motor is held by the frame member. In this case, the suspension member functions as a vibration absorbing member, and when the suspension ring is held by the frame member, an excellent effect such as acting as a cushioning material when an impact acts on the suspension ring at the time of dropping is exhibited.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing an embodiment of the present invention.

FIG. 2 is a perspective view of a front panel according to the first embodiment.

FIG. 3 is a perspective view of a frame member according to the first embodiment.

FIG. 4 is a view taken in the direction of arrow A in FIG. 1;

FIG. 5 is a view taken in the direction of arrow B in FIG. 1;

6A is a front view and FIG. 6B is a plan view of the suspension ring according to the embodiment.

FIG. 7A is a side view and FIG. 7B is a front view of the set switch button in the first embodiment.

FIG. 8 is an external perspective view of the portable electronic device.

FIG. 9 is an exploded perspective view of a conventional example.

FIG. 10 is a perspective view of a main part of a conventional example.

[Explanation of symbols]

 22 Frame member 25 Button part 26 Button part 27 Button part 31 Wiring board 32 Space 35 Hanging ring 36 Set switch button

Claims (4)

[Claims] 1. A portable electronic device comprising a frame member formed integrally with a plurality of switch buttons from a high elastic material and capable of holding other components. 2. The portable electronic device according to claim 1, wherein the frame member holds the wiring board. 3. The portable electronic device according to claim 1, wherein a cylindrical space is formed in the frame member, and a motor is held in the space. 4. The portable electronic device according to claim 1, wherein a suspension ring is fixed to said frame member.