JP2001175608A - Portable information terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a conventional portable information terminal device is possibly damaged by a shock at the time of a fall since its display part, etc., are supported directly by a case with high possibility for lower cost and higher portability and a shock from the case is easily transmitted directly to the display part even when an elastic member is interposed. SOLUTION: A gasket which is elastic and has a function of buffering a shock is charged covering only an end part of the whole outer periphery by internal constitution parts including a liquid crystal display one over another. This gasket is pressed and fixed to a housing (case) by an L-shaped metal frame made of metal to obtain the portable information terminal with the internal shock buffering mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, a PHS
Also, the present invention relates to a portable information terminal device having a liquid crystal display as a display portion of an electronic organizer or the like, and particularly to an internal buffer mechanism of the portable information terminal device.

[0002]

2. Description of the Related Art In general, portable information terminal devices are reduced in size and weight, and are carried in bags or pockets. Naturally, there is a risk of accidentally dropping it when picking it up.
It is necessary to take measures for shock buffering to withstand up to 2 m to prevent breakage.

For example, in Japanese Patent Application Laid-Open No. 10-145056, an impact-resistant, integrally injection-molded elastic body is provided inside and outside of a case of a portable terminal device, so that a cushioning material inside and outside can be provided. The technique of the internal buffer structure which also has the protection material of the above is described.

Japanese Patent Application Laid-Open No. 8-250866 discloses a portable terminal device case formed by joining a plurality of case members, by interposing an impact buffer member made of an elastomer between the joined case members. A technique for preventing a case from being damaged from an impact such as dropping is described.

[0005]

However, in the usual portable information terminal device, the cost and portability are considered too much, so that the display unit and the like are often directly supported by the case, and the elastic member is interposed. Even in the case of a device, the impact from the case is easily transmitted to the display unit, so that the impact at the time of falling is weak.

In the technique described in Japanese Patent Application Laid-Open No. H10-145056, since the internal components are held in a floating state so as not to be in direct contact with the case, electronic components and the like are mounted. Although it is suitable as a structure for fixing a printed circuit board or the like, it cannot fix a component exposed on the case surface and function as a buffer member as in a liquid crystal display having a touch panel or the like. In addition, since it is held down by cushioning members from both sides,
The thickness of the cushioning member increases, and in the case of a touch panel or the like, when the panel surface is pressed with a finger, the touch panel itself sinks inward, which is likely to cause erroneous input.

In the technique described in Japanese Patent Application Laid-Open No. 8-250866, the case itself is protected, but the liquid crystal panel itself is not protected by the cushioning member, and there is no description on the cushioning.

Accordingly, an object of the present invention is to provide a portable information terminal device having an internal shock buffering mechanism for buffering an impact caused by dropping an internal component such as a liquid crystal display or the like to prevent damage to the component.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an information input unit, a circuit board having a CPU for processing input information, a display unit for displaying the information, In a portable information terminal device comprising a memory for storing the information and an exterior body that holds them inside, a metal frame that holds the display unit and is attached to the exterior body, a display unit that is held by the metal frame, A portable information terminal device comprising: an elastic member provided between the portable information terminal device and the metal frame.

[0010] The portable information terminal device having the above configuration is
Overlay the internal components including the liquid crystal display,
A gasket having elasticity and a shock-absorbing function is filled so as to cover only the end of the entire outer periphery, and the gasket is fixed to a case (exterior body) by being pressed against a case (exterior body) with a metal frame having a metal frame shape. The shock such as a drop is buffered by the shock buffering mechanism.

[0011]

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

FIGS. 1 to 4 show an example of the structure of an internal shock absorbing mechanism in a portable information terminal device according to the present invention.

As shown in FIG. 4A, the appearance of the portable information terminal device is shown from the front, and FIG.
2A shows the structure of the AA cross section of the portable information terminal device in FIG.

[0014] The case (exterior body) of the portable information terminal device
On the front of 1 are a plurality of operation buttons 10 having various functions.
Are provided, and a liquid crystal display 3 having a rectangular touch panel 2 in the center is provided. An input unit 7 for optically reading information is provided inside. Further, a wireless transmission / reception unit including an antenna and a card-like circuit board (wireless card) 9 and a connector 11 are provided. Has the function of performing input / output by

FIG. 1 shows an overlapping state as viewed from the inside of a case 1. A well-known touch panel 2 made of a transparent thin film and a liquid crystal display 3 having a circuit board 4 attached to the back side are overlaid. A U-shaped gasket 5 having elasticity and serving as a cushioning member is fitted so as to cover the end from the periphery thereof. The gasket 5 is supported and fixed to the case 1 by the metal frame 6 so as to be pressed against the case 1.

FIG. 2 shows a cross-sectional structure of the internal shock absorbing mechanism shown in FIG.

The U-shaped gasket 5 is made of an injection-molded elastic material such as rubber or resin, and has a shock absorbing function. The cross-sectional shape is a U-shape, but a linear protrusion is provided on the end surface on the side in contact with the case 1, and the pressing force is increased only at the portion where the protrusion contacts,
It has a waterproof function to prevent moisture from entering from outside.

As a modified example, not only a line-shaped protrusion may be formed on the end face on the side in contact with the case 1, but also a line-shaped protrusion may be formed on the end face on the side in contact with the touch panel 2. Then, as shown in FIG.
The end of the gasket 5 that is in contact with the edge may be formed as an O-ring shaped edge 5b.

The back side of the gasket 5 has a concave-convex shape having a groove formed in a vertical direction.
Is formed so that only the protruding portions come into contact, instead of surface contact. By such a contact method, the elasticity of the gasket 5 can be utilized well, and the cushioning property is further improved.

The above-mentioned touch panel 2 and the liquid crystal display 3 are overlapped with each other, and a gasket 5 is inserted so as to cover the entire periphery. Then, the gasket 5 is fixed to the case 1 by screws or the like (not shown) so as to press the gasket 5 against the case 1 with an L-shaped frame-shaped metal frame 6 made of an easy-to-process and lightweight metal such as magnesium or aluminum.

With such a configuration, the internal shock absorbing mechanism of the band information terminal device in the present embodiment has a gasket having elasticity inserted only from the outer periphery (end) of the liquid crystal display system. Of the touch panel 2 and the main surface of the liquid crystal display 3, the electrical connection with other components such as the circuit board 4 therebetween can be easily made.

Further, since the gasket serving as the shock absorbing member is fixed by the metal frame, the rigidity is improved as compared with the conventional resin frame, and the damage to the internal components including the liquid crystal display can be reduced. .

Although the above embodiment has been described, the present invention includes the following inventions.

(1) An information input unit for inputting information from outside, a circuit board having a CPU for processing the input information, a display unit for displaying the information, a memory for storing the information, In a portable information terminal device comprising an exterior body that holds the inside, a metal frame that holds the display unit and is attached to the exterior body, a display unit that is held by the metal frame, and a space between the metal frame. A portable information terminal device comprising: an elastic member provided.

According to the above item (1), even if the device body is accidentally dropped, the display portion and the information input portion are hardly damaged, and the shock resistance is dramatically improved as compared with the conventional products. An information portable terminal device with improved water resistance can be provided.

(2) The display section has a liquid crystal display, and the information input section has a transparent touch panel disposed on the liquid crystal display, and the liquid crystal display and the transparent touch panel are formed of the elastic member. 2. The portable information terminal device according to claim 1, wherein the portable information terminal device is integrally supported by the metal frame via a wire.

According to the item (2), since the liquid crystal display and the transparent touch panel are integrally held by the metal frame via the elastic member, the impact resistance and the water resistance can be further improved. it can.

(3) The portable information terminal device according to (1), wherein the elastic member has a U-shaped cross section and is provided so as to surround the periphery of the display unit.

According to the item (3), in addition to the effect (improvement of impact resistance) similar to the item (1), since the elastic member surrounds only the periphery of the display portion, the liquid crystal display or the like can be used. The electrical connection between the display unit, the information input unit such as a transparent touch panel, and the circuit board is facilitated.

(4) The portable information terminal according to (3), wherein the contact surface of the elastic member with the display unit is a flat surface, and the contact surface with the metal frame is an uneven surface. apparatus.

According to the item (4), with respect to the elastic member,
By making the contact surface with the display unit a flat surface, the adhesion to the display unit is increased, and the intrusion of moisture from the end surface of the display unit can be prevented.Moreover, by making the contact surface with the metal frame an uneven surface, Shock absorption can be enhanced.

(5) The portable information terminal device according to the above item (1) further includes a wireless communication unit for transmitting / receiving information to / from an external device.

According to the item (5), in addition to the effect (improvement of impact resistance) similar to the item (1), the provision of the wireless communication unit enables information to be transmitted and received cordlessly. ,
Usability as a portable information terminal device is improved.

[0034]

As described above in detail, according to the present invention, a portable information terminal device having an internal shock buffering mechanism for buffering an impact caused by dropping an internal component such as a liquid crystal display or the like to prevent the component from being damaged. Can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration example of an internal shock buffering mechanism in a portable information terminal device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a cross-sectional configuration of the internal shock absorbing mechanism shown in FIG.

FIG. 3 is a view showing a modification of the gasket of the internal shock absorbing mechanism shown in FIG.

FIG. 4A shows an external configuration of the portable information terminal device according to the embodiment as viewed from the front, and FIG. 4B is a cross-sectional view of the portable information terminal device taken along line AA in FIG. FIG. 3 is a diagram showing the structure of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Case 2 ... Touch panel 3 ... Liquid crystal display 4 ... Circuit board 5 ... Gasket 6 ... Metal frame 7 ... Input unit 8 ... CPU 9 ... Wireless card 10 ... Operation button 11 ... Connector

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 7/32 H05K 5/02 J H04M 1/02 G06F 1/00 312G H05K 5/02 312L H04B 7/26 VF term (for reference) 4E360 AA02 AB02 AB14 AB33 AB42 BC05 CA03 ED02 ED23 ED27 GA14 GA29 GB26 5B019 BA07 BB08 DA06 EA01 GA03 5G435 AA06 BB12 EE05 FF00 HH18 LL07 5K023 AA07 BB27 DD06 HH07 RR02 BB03 BB07 BB07 BB07 BB07 BB07 BB07 DD02

Claims (5)

[Claims] 1. An information input unit, a circuit board having a CPU for processing input information, a display unit for displaying the information, a memory for storing the information, and an exterior body for holding the information inside A portable information terminal device comprising: a metal frame that holds the display unit and is attached to the exterior body; a display unit held by the metal frame; and an elastic member provided between the metal frame. A portable information terminal device characterized by the above-mentioned. 2. The display unit has a liquid crystal display, the information input unit has a transparent touch panel disposed on the liquid crystal display, and the liquid crystal display and the transparent touch panel have the elastic member. The portable information terminal device according to claim 1, wherein the portable information terminal device is integrally held by the metal frame via a metal frame. 3. The portable information terminal device according to claim 1, wherein the elastic member has a U-shaped cross section, and is provided so as to surround the periphery of the display unit. 4. The portable information terminal device according to claim 3, wherein the elastic member has a flat contact surface with the display unit, and a contact surface with the metal frame has an uneven surface. 5. The portable information terminal device according to claim 1, wherein the portable information terminal device further includes a wireless communication unit for transmitting and receiving information from an external device.