JP2001148726A - Waterproof portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof portable telephone set which improves the yield of key button manufacturing and also improves waterproof by effectively using members. SOLUTION: The waterproof portable telephone set is equipped with a housing which has a hollow, a substrate, a key pad having a rubber sheet which seals the hollow of the housing from the inside, has its peripheral edge arranged between the operation-surface side surface of the substrate and the hollow peripheral edge of the housing, and further has contacts, a sheet member which seals the hollow of the housing from the outside and has its peripheral edge arranged on the external wall of the hollow peripheral edge of the housing, and key buttons, and a cover which has insertion holes where the key buttons are inserted and is fitted to the housing while pressed against the sheet member so that the peripheral edge of the sheet member is pressed against the external wall of the hollow peripheral edge of the housing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, and more particularly to a waterproof portable telephone which prevents water from entering an enclosure from an operation surface.

[0002]

2. Description of the Related Art A portable telephone usually has a key button on an operation surface, and the key button is often provided on a sheet in advance in order to facilitate assembly. In addition, a keypad composed of a key button and a sheet is often provided with a contact, which is in contact with and separates from an electrode of a substrate mounted in a housing, on the surface of the substrate in order to reduce the number of components.

[0003] In many conventional waterproof portable telephones, a sheet portion of a keypad is sandwiched between a housing and a substrate to prevent water from entering the housing through a gap between the key buttons and the housing. Such a prior art is disclosed in Japanese Patent Application Laid-Open No. 7-336263.
Please refer to Japanese Patent Publication No.

A conventional portable telephone will be described with reference to the drawings. 3A and 3B show a waterproof mobile phone according to a conventional example, in which FIG. 3A is a perspective view and FIG. 3B is a cross-sectional view taken along the line CC ′. Such a conventional mobile phone 101 has a keypad including a key button 103 and a sheet portion 104 as a movable portion thereof, and the sheet portion 104 of the keypad is sandwiched between a rib 106 of a housing and a substrate 105. This prevents intrusion of liquids such as water droplets.

[0005]

However, keypads are not only external parts, but also require dimensional accuracy as functional parts for movement and waterproofing. In order to produce parts that satisfy both external appearance and function, It was difficult to improve the yield. As a result, productivity may decrease.

[0006] Further, since the key button is usually integrated with the sheet and the contact, if any of them is defective, the key button, the sheet and the contact must all be discarded.

In addition, in the conventional mobile phone, when the key button is pressed, the substrate is pressed downward, so that the contact portion between the housing and the sheet portion of the keypad may be opened. -If the rigidity of the housing is reduced due to the weight reduction, there is a risk that the contact portion is easily opened and the waterproof effect is reduced.

An object of the present invention is to provide a waterproof portable telephone that can improve the yield of key buttons, effectively use members, and improve the waterproof effect.

[0009]

According to an aspect of the present invention, there is provided a waterproof portable telephone having an operation surface and preventing water from entering the housing from the operation surface. A housing having a predetermined number of electrodes mounted in the housing and arranged at a predetermined position on the operation surface side; and a housing arranged on the operation surface side of the substrate and the housing A space in the body is sealed from the inside, and a peripheral portion is disposed between a surface on the operation surface side of the substrate and an inner wall of the peripheral portion of the space in the housing, and a surface on the substrate side corresponding to an electrode of the substrate. A sheet member having a contact that comes into contact with and separates from the electrode; a sheet member having a peripheral portion disposed on an outer wall of a peripheral portion of the cavity while sealing a cavity of the case from the outside; A key button disposed on an outer surface of the sheet member corresponding to a contact point of the sheet And a keypad that covers the keypad except for the operation surface of the key button, and has an insertion hole through which the key button is inserted at a position corresponding to the key button. A cover that is pressed against the sheet member so as to press against the outer wall of the peripheral edge of the empty space of the housing and is attached to the housing.

[0010] In the waterproof portable telephone, it is preferable that the rubber sheet has a projection on a surface on an operation surface side corresponding to the contact.

In the waterproof portable telephone, it is preferable that the sheet has a projection on a surface of the substrate corresponding to the key button.

Further, in the waterproof portable telephone, it is preferable that a peripheral portion of the rubber sheet is sandwiched between a surface on the operation surface side of the substrate and an inner wall of a peripheral portion of a cavity of the housing.

Further, in the waterproof type portable telephone, it is preferable that a peripheral portion of the rubber sheet and a peripheral portion of an empty space of the housing are bonded to be integral with the housing.

[0014] In the waterproof portable telephone, the cover may have a locking claw on a surface on the housing side, and the housing may have a locking claw for locking the locking claw of the cover. Is preferred.

In the waterproof portable telephone, it is preferable that the cover is fixed to the housing by screw means.

Further, in the waterproof portable telephone, it is preferable that the cover covers a side end surface of the housing.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An integral part of a key button, a sheet, and a contact is divided into an external part composed of a key button and a sheet and a functional part composed of a sheet and a contact, thereby providing an external part. Or, even if there is a defect in the functional unit, only one of them can be lost or replaced, so that the member is not wasted.

Similarly, since the keypad is divided into an external part and a functional part, the external part sheet and the functional part sheet can be sealed from the outside and inside of the housing, respectively. It is possible to improve the waterproof effect.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A waterproof portable telephone according to an embodiment of the present invention will be described with reference to the drawings. 1A and 1B show a waterproof mobile phone according to one embodiment of the present invention, wherein FIG. 1A is a perspective view, and FIG.
It is sectional drawing between -A '. This mobile phone 1 has a housing 2
And a keypad 5, a substrate 8, a rubber sheet 10, and a keypad cover 13.

The housing 2 has a space 3 penetrating through the operation surface, and a locking claw 4 for locking the locking claw 15 of the cover on the outer surface of the housing around the space 3.

The key pad 5 includes a key button 6 and a key button sheet 7. The key button 6 is disposed on the outer surface of the key button sheet 7 corresponding to the contact 11 of the rubber sheet. The peripheral portion 18 of the key button sheet 7 is sandwiched between the outer wall of the peripheral edge portion 16 of the housing and the rib 17 of the keypad cover, thereby sealing the empty space 3 of the housing from the outside.

The substrate 8 is mounted in the housing 2 and has a predetermined number of electrodes 9 arranged at predetermined positions on the operation surface side.
Having. The electrode 9 comes into contact with and separates from the contact 11 of the rubber sheet.

The peripheral edge 19 of the rubber sheet 10 is sandwiched between the surface on the operation surface side of the substrate 8 and the inner wall of the peripheral edge 16 of the housing to seal the cavity 3 of the housing from the inside. ,
A contact 11 is provided on the surface of the substrate corresponding to the electrode 9 on the substrate side, and the contact 11 is provided on the operation surface side corresponding to the contact 11.

The keypad cover 13 is a keypad 5
Is covered except for the operation surface of the key button 6, and has an insertion hole 14 for inserting the key button 6 at a position corresponding to the key button 6, and is hooked on the locking claw portion 4 of the housing on the surface on the housing side. It has a locking claw 15 and is pressed against the key button sheet 7 so as to press the peripheral portion 18 of the key button sheet against the outer wall of the empty peripheral portion 16 of the housing, and is attached to the housing 2. .

A waterproof portable telephone according to another embodiment of the present invention will be described with reference to the drawings. 2A and 2B show a waterproof mobile phone according to one embodiment of the present invention. FIG. 2A is a perspective view, and FIG. 2B is a cross-sectional view taken along line BB ′. The appearance of the waterproof mobile phone 21 is the same as that in FIG.

The difference from the waterproof portable telephone shown in FIG.
The peripheral portion 39 of the rubber sheet and the peripheral portion 36 of the cavity of the housing are bonded to each other, so that the rubber sheet 30 and the housing 22 are integrated. By doing so, the waterproof effect can be improved. Even in this case, since the key pad 25 is a separate component from the rubber sheet 30, the productivity does not decrease due to the defect of the key button 26 which is an external component.

In addition, the keypad cover 13 can be fixed to the housing by a separate component such as a screw without using the locking claw 4 and the hooking claw 15 as shown in FIG. 1B.

The keypad cover 13 as shown in FIG. 1B is extended to the side end surface of the housing 2 so that the key button sheet 18 of the housing 2 enters the inside of the keypad cover 13 and A structure in which the side surface of the cover covers the key button side portion of the housing may be used.

[0029]

According to the present invention, the conventional keypad, which is an external appearance and a functional part, is divided into an external part and a functional part. Therefore, even if a defect occurs in one of the parts, a decrease in productivity is minimized. It is possible to stay. That is, when there is a key button having a defect in appearance, it is not necessary to discard the rubber sheet which is a functional part. Conversely, when there is a rubber sheet having a defective dimension, the key button does not need to be discarded.

Further, since the rubber sheet requiring dimensional accuracy is not adhered to the key button as another component, it is possible to prevent the waterproof function of the rubber sheet from deteriorating due to misalignment due to incorporation.

Further, even when the substrate is lowered or warped by pressing the key button, and the contact portion between the rubber sheet and the housing is opened, the key button sheet is kept from the outside of the housing. Since it is pushed into and follows, the deterioration of the waterproof effect can be minimized.

In addition, when the key buttons, which are external parts, are found to be defective after being assembled, unlike a conventional mobile phone, it is not necessary to disassemble the housing and take out the electronic component substrate. Connect.

Also, by preparing key buttons having different specifications such as different colors, the key button can be easily and safely exchanged by the wearer, and a mobile phone having specifications unique to the wearer can be manufactured. It will be easier.

[Brief description of the drawings]

1A and 1B are a waterproof mobile phone according to one embodiment of the present invention, wherein FIG. 1A is a perspective view and FIG. 1B is a cross-sectional view along AA ′.

FIGS. 2A and 2B are a waterproof mobile phone according to one embodiment of the present invention, wherein FIG. 2A is a perspective view and FIG.

FIG. 3 is a waterproof mobile phone according to a conventional example,
(A) is a perspective view, and (B) is a cross-sectional view between CC ′.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 21 Cellular phone 2, 22 Housing 3, 23 Vacancy 4, 24 Locking claw part 5, 25 Keypad 6, 26 Key button 7, 27 Key button sheet 8, 28 Substrate 9, 29 Electrode 10, 30 Rubber Sheet 11, 31 Contact point 12, 32 Projection 13, 33 Keypad cover 14, 34 Through hole 15, 35 Hanging claw 16, 36 Peripheral edge of housing 17, 37 Rib 18, 38 Peripheral edge of key button sheet Parts 19, 39 Peripheral part of rubber sheet 101 Cellular phone 102 Case 103 Key button 104 Sheet part 105 Substrate 106 Rib

Claims (8)

[Claims] 1. A waterproof mobile phone having an operation surface and preventing water from entering the housing from the operation surface, wherein: a housing having a space penetrating the operation surface; A substrate having a predetermined number of electrodes disposed at a predetermined position on the operation surface side while being mounted, and disposed on the operation surface side of the substrate, and sealing a cavity of the housing from the inside, A portion is disposed between the operation surface side of the substrate and the inner wall of the peripheral edge of the cavity of the housing, and a rubber having a contact on the substrate side corresponding to an electrode of the substrate, the contact being in contact with or separating from the electrode. A sheet member, which seals the space of the housing from the outside and has a peripheral portion disposed on an outer wall of the peripheral portion of the space of the housing;
A keypad provided with a key button disposed on the outer surface of the sheet member corresponding to the contact point of the rubber sheet; and covering the keypad except for the operation surface of the key button, and corresponding to the key button. The key button is inserted at a position where the key button is inserted, and the peripheral portion of the sheet member is pressed against the sheet member so as to press against the outer wall of the empty peripheral portion of the housing, and is attached to the housing. A waterproof type mobile phone, comprising: 2. The waterproof portable telephone according to claim 1, wherein the rubber sheet has a projection on a surface on an operation surface side corresponding to the contact. 3. The waterproof portable telephone according to claim 1, wherein the sheet member has a projection on a surface on a substrate side corresponding to the key button. 4. The rubber sheet according to claim 1, wherein a peripheral portion of the rubber sheet is sandwiched between a surface on the operation surface side of the substrate and an inner wall of a peripheral portion of a cavity of the housing. The waterproof mobile phone according to claim 1. 5. The rubber sheet according to claim 1, wherein a peripheral edge of the rubber sheet and a peripheral edge of the hollow space of the housing are adhered to be integrated with the housing. Waterproof mobile phone. 6. The cover according to claim 1, wherein the cover has a hook on the surface of the housing, and the housing has a hook for locking the hook of the cover. 6. The waterproof mobile phone according to any one of claims 1 to 5. 7. The waterproof portable telephone according to claim 1, wherein the cover is fixed to the housing by screw means. 8. The waterproof portable telephone according to claim 1, wherein the cover covers a side end surface of the housing.