JP2010079395A - Panel attachment structure, sandwiching member, and panel attachment method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the occurrence of wrinkles and swelling of a film member without the modification of a basic structure such as a case shape, when a surface end portion of a panel having the film member on the surface is to be attached to the case by the intermediary of a sandwiching member. <P>SOLUTION: When the surface end portion of a panel 10 is to be attached to the case 30 by the intermediary of a cushion 20, an attachment structure of the panel 10, having a film member 11 on the surface, includes a force conversion means for converting a pressure 52 received by the cushion 20 from the panel 10 and the case 30 to a force 53 to pull the film member 11 to the outward direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a panel mounting structure that is applied to mounting a touch panel having a film material on the surface, and further includes a cushion, a spacer, and the like that are sandwiched between the panel and the casing when the panel is mounted. It relates to members.

For example, a panel having a film material on its surface, such as a resistance film type touch panel, is known.
Normally, this type of panel is attached to the housing via a sandwiching member such as a cushion or spacer in consideration of dustproof and drip-proof properties and impact resistance. Is closed and sealed by the sandwiching member, so that the dust-proof and drip-proof property inside the housing and the impact resistance from the outside are secured.

Here, when the film portion on the surface of the panel is fixed to the housing via such a sandwiching member, there is a possibility that wrinkles or bulges are generated in the film.
Hereinafter, the principle of occurrence of the wrinkles and bulges will be specifically described with reference to FIGS.
8 to 10 are cross-sectional views showing the panel mounting structure through the sandwiching member. FIG. 8 is a normal mounting state, FIG. 9 is a state where wrinkles are generated, and FIG. The attached state is shown.

As shown in FIG. 8, when the panel 102 having the film material 101 on the surface is attached to the housing 104 via the cushion 103, the upper and lower surfaces of the cushion 103 are respectively attached to the panel 102 and the housing 104 with an adhesive 105. It will be fixed.
However, when the film material 101 provided on the surface of the panel 102 is fixed to the cushion 103, the pressure 106 received from the panel 102 or the casing 104 acts in the thickness direction of the film material 101, Movement is hindered.
For this reason, when the film material 101 expands and contracts in accordance with environmental changes such as temperature and humidity, the region in which movement in the surface direction is limited by the cushion 103 is deformed in the thickness direction, and wrinkles and swelling occur ( (See FIG. 9).

In addition, the film 101 may be wrinkled or swollen due to the mounting position or mounting angle of the cushion 103.
For example, as shown in FIG. 10, when the mounting position of the cushion 103 with respect to the panel 102 and the housing 104 is shifted to the left and right and the cushion 103 is mounted obliquely, the elastic restoring force 107 of the cushion 103 causes the film 101 to be attached to the panel 102. The film material 101 may act as a force 108 that pushes it inwardly, causing wrinkles and bulges in the film material 101.

Therefore, Patent Document 1 proposes a housing structure that applies a stretching force directly or indirectly to a film material.
The housing shown in Patent Document 1 has a slope (stretching action portion) at the contact portion with the cushion, and the slope presses the cushion in the outer direction, so that a stretching force is applied to the film material. It has become.

JP 2003-296023 A

However, in the panel mounting structure disclosed in Patent Document 1, it is necessary to form an inclined surface (extension action portion) that presses the cushion outward in an appropriate position of the housing.
For this reason, application is difficult when the basic structure such as the housing shape cannot be changed or when it is not desired to change the cost.

  The present invention has been considered in view of the above circumstances, and the basic structure such as a housing shape is used for attaching the surface end of a panel having a film material on the surface to the housing via a sandwiching member. An object of the present invention is to provide a panel mounting structure, a sandwiching member, and a panel mounting method capable of suppressing the occurrence of wrinkles and bulges in a film material without changing the above.

  In order to achieve the above object, a panel mounting structure according to the present invention includes a housing, a panel attached to the housing, and a sandwiching member disposed between the housing and the panel. The member includes a force conversion unit that converts a pressure received from the panel and / or the casing into a force that pulls the panel surface in the peripheral direction of the panel.

  In order to achieve the above object, a sandwiching member of the present invention is a sandwiching member disposed between a casing and a panel attached to the casing, and is received from the panel and / or the casing. The pressure converter converts force into force that pulls the panel surface toward the peripheral edge of the panel.

  In order to achieve the above object, the panel mounting method of the present invention is a panel mounting method in which a sandwiching member is disposed between a housing and the panel, and the panel is attached to the housing. The pressure received from the panel and / or the housing via the sandwiching member is converted into a force for pulling the panel surface in the peripheral direction of the panel.

  According to the present invention, in attaching the surface end of the panel having the film material on the surface to the housing via the sandwiching member, the film material can be used without changing the basic structure such as the housing shape. Generation of wrinkles and bulges can be suppressed.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[First embodiment]
First, a panel mounting structure and a sandwiching member (cushion) according to a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an exploded perspective view showing a panel mounting structure according to the first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a panel mounting structure according to the present embodiment, and FIG. 3 is an operation explanatory view of the sandwiching member according to the present embodiment shown in FIG.
As shown in FIGS. 1 and 2, the panel mounting structure according to the first embodiment of the present invention includes a housing 30, a panel 10 attached to the housing 30, and between the housing 30 and the panel 10. A cushion 20 serving as a sandwiching member is provided.
The panel 10 is a plate-like member that is attached and fixed to the housing 30. As shown in FIG. 2, the panel 10 according to this embodiment is a panel having a film material 11 on the surface, for example, a resistive touch panel. It has become.
And this panel 10 is attached to the housing | casing 30 via the cushion (clamping member) 20 in the surface edge part.

  As shown in FIG. 1, in the present embodiment, the housing 30 has a frame portion 32 that surrounds a rectangular opening 31, and four sides (surface edges) of the panel 10 are formed on the lower surface (inner surface of the housing) of the frame portion 32. The four cushions 20 are installed between the panel 10 and the housing 30. The upper and lower surfaces of the cushion 20 are fixed to the panel 10 and the housing 30 with an adhesive 40, respectively. And the panel 10 has a structure which maintains an attachment state by being pressed on the cushion 20 (housing | housing 30) with the pressure 51 from the back surface side (apparatus main body side).

Accordingly, the panel 10 and the housing 30 are attached with a certain elasticity via the cushion 20 and the gap between the housing 30 and the panel 10 is closed and sealed by the cushion 20. Dustproof and dripproofness and impact resistance from the outside to the panel 10 and the like are ensured.
Although not particularly illustrated, the panel 10 of the housing 30 is firmly fixed separately by screwing, a fitting structure or other fixing means, and the back side of the panel of the housing 30 is another device, a cover member, or the like. It will be covered with.

The cushion 20 is formed using an elastically deformable material.
Specifically, the cushion 20 has a rectangular parallelepiped shape with an outward appearance. The cushion 20 is disposed and fixed along the four peripheral edges of the panel 10 and functions as a sealing means for closing and sealing the inside of the housing, and also functions as a buffer means for absorbing impact from the outside. Yes.
And the cushion 20 of this embodiment is provided with the force conversion means which converts the pressure received from the panel 10 or the housing | casing 30 into the force which pulls the film material 11 to an outer side.
By this force conversion means, when the panel 10 having the film material 11 on the surface is attached and fixed to the housing 30 via the cushion 20, without changing the basic configuration such as the shape and structure of the housing 30, It is possible to suppress / prevent the occurrence of wrinkles and bulges on the film material 11.

Specifically, as shown in FIG. 2, the cushion 20 of the present embodiment includes a housing side cushion (housing side member) 21 attached to the housing 30 side and a panel side cushion (panel side) attached to the panel 10 side. Member) 22 and divided into two members.
The casing-side cushion 21 and the panel-side cushion 22 have slopes that are in surface contact with each other, and the panel surface receives the pressure received from the panel 10 or the housing 30 by the surface contact portion between the slopes in the panel peripheral direction. It is designed to convert to a pulling force.

As shown in FIG. 2, the base end surface (upper surface: housing mounting surface) of the housing side cushion 21 and the base end surface (lower surface: panel mounting surface) of the panel side cushion 22 are horizontal surfaces. The front end surface (lower surface) of 21 and the front end surface (upper surface) of the panel-side cushion 22 are slopes 23 with inner, outer, outer, and outer heights that become higher toward the outside.
The inclined surfaces 23 of the cushions 21 and 22 are brought into contact with each other, and the force conversion according to the present invention is performed by the inclined surface contact portion (force converting means).

Hereinafter, the operation of the panel mounting structure and the sandwiching member (cushion) according to this embodiment will be described with reference to FIGS.
The housing side cushion 21 and the panel side cushion 22 constituting the cushion 20 are fixed to the housing 30 or the panel 10 (film material 11) with an adhesive 40, respectively.
Then, by bringing the inclined surfaces 23 of the cushions 21 and 22 into contact with each other and bringing them into surface contact, as shown in FIG. 3, the pressure 52 applied in the vertical direction from the panel 10 or the casing 30 is a reaction force between each other. In response to this, it works along the slope 23, and a part thereof acts as a component force 53 in the lateral direction.

Here, if the panel-side cushion 22 is fixed to the film material 11 so as not to protrude from the film portion of the panel 10, when the pressure 52 is applied in the vertical direction, the panel-side cushion 22 has an outward direction. Force 53 will work.
Thereby, the film material 11 on the surface of the panel 10 is always pulled in the outer direction (panel peripheral direction), and the generation of wrinkles and bulges is suppressed / prevented.

As described above, according to the panel mounting structure of the present embodiment, the cushion 20 is attached to the casing 30 via the cushion 20 by attaching the surface end of the panel 10 to the panel 10 or the casing 30. It functions as a force conversion means for converting the pressure 52 received into a force 53 that pulls the film material 11 outward.
Thereby, generation | occurrence | production of the wrinkles and swelling in the film material 11 can be suppressed, without changing basic structures, such as a housing | casing shape.

  Further, the cushion 20 of the present embodiment includes a housing side cushion 21 attached to the housing 30 side and a panel side cushion 22 attached to the panel 10 side, and a slope formed on the housing side cushion 21 and the panel side cushion 22. Since the force conversion is performed at the inclined surface contact portion, the force conversion action according to the present invention can be realized while avoiding a complicated structure and an increase in cost.

Moreover, in the cushion 20 of this embodiment, since the housing | casing side cushion 21 and the panel side cushion 22 are not connected, the relative lateral displacement of the housing | casing side cushion 21 and the panel side cushion 22 shall be made large, and the film material 11 A large pulling force can be applied to the surface.
Further, since the housing side cushion 21 and the panel side cushion 22 are separated, it is possible to allow a deviation between the fixing position on the housing 30 side and the fixing position on the panel 10 side, and the elastic restoring force 107 ( The occurrence of (see FIG. 10) can also be effectively prevented.

[Second Embodiment]
Next, a panel mounting structure and a sandwiching member (cushion) according to a second embodiment of the present invention will be described with reference to FIG.
In addition, about the part which is common in 1st embodiment mentioned above, the same code | symbol as 1st embodiment is attached | subjected and description of said 1st embodiment is used.

FIG. 4 is a cross-sectional view showing a panel mounting structure according to the second embodiment of the present invention.
As shown in this figure, the panel mounting structure according to the second embodiment of the present invention is that the slope 23 of the housing side cushion 21 and the slope 23 of the panel side cushion 22 are connected via an adhesive 24. This is different from the first embodiment.

By adopting such a configuration, it is possible to more reliably prevent moisture, dust, foreign matter and the like from entering from the inclined surface contact portion, and to obtain better drip-proof dust resistance.
Here, the adhesive 24 is preferably made of a flexible material.
If it does in this way, since the movement of the housing | casing side cushion 21 and the panel side cushion 22 is not prevented, drip-proof dustproofness can be improved, maintaining the suppression effect of the wrinkles in the film material 11, and a swelling.

[Third embodiment]
Next, a panel mounting structure and a sandwiching member (cushion) according to a third embodiment of the present invention will be described with reference to FIG.
In addition, about the part which is common in 1st, 2nd embodiment mentioned above, the same code | symbol as 1st, 2nd embodiment is attached, and description of said 1st, 2nd embodiment is used.

FIG. 5 is a cross-sectional view showing a panel mounting structure according to the third embodiment of the present invention.
As shown in this figure, the panel mounting structure according to the third embodiment of the present invention is such that the side surface of the housing side cushion 21 and the side surface of the panel side cushion 22 are connected via an elastic sheet member 25. This is different from the second embodiment.

By adopting such a configuration, it is possible to prevent moisture, dust, foreign matter and the like from entering from the inclined surface contact portion, and to obtain a good drip-proof dustproof property.
Here, the elastic sheet member 25 is preferably made of a flexible material.
If it does in this way, since the movement of the housing | casing side cushion 21 and the panel side cushion 22 is not prevented, drip-proof dustproofness can be improved, maintaining the suppression effect of the wrinkles in the film material 11, and a swelling.

[Fourth embodiment]
Next, a panel mounting structure and a sandwiching member (cushion) according to a fourth embodiment of the present invention will be described with reference to FIG.
In addition, about the part which is common in 1st-3rd embodiment mentioned above, the same code | symbol as 1st-3rd embodiment is attached | subjected and description of said 1st-3rd embodiment is used.

FIG. 6 is a cross-sectional view showing a panel mounting structure according to the fourth embodiment of the present invention.
As shown in this figure, the panel mounting structure according to the fourth embodiment of the present invention is that the housing side cushion 21 and the panel side cushion 22 are formed using a material having a high coefficient of thermal expansion. It is different from the form.

By adopting such a configuration, in a high temperature and high humidity environment where the state change of the film material 11 is considered to be particularly large, the thermal expansion force 54 of the cushion 20 is used to pull the film material 11 outward with a greater force. It becomes possible.
That is, in addition to the above-described lateral force 53 (see FIG. 3), the lateral force 55 due to thermal expansion can be generated, and the film material 11 can be pulled outward by the resultant force.
Thereby, even in an environment where the state change of the film material 11 seems to be large, it is possible to apply a stronger tensile force to the film material 11 and suppress the occurrence of wrinkles and bulges in the film material 11.
In addition, as a material with a large coefficient of thermal expansion used as the cushion 20 in this embodiment, there exists a closed foam type thing etc. with a urethane type foaming material, for example.

[Fifth embodiment]
Next, a panel mounting structure and a sandwiching member (cushion) according to a fifth embodiment of the present invention will be described with reference to FIG.
In addition, about the part which is common in 1st-4th embodiment mentioned above, the same code | symbol as 1st-4th embodiment is attached | subjected and description of said 1st-4th embodiment is used.

FIG. 7 is a cross-sectional perspective view showing the panel mounting structure according to the fifth embodiment of the present invention.
As shown in this figure, in the panel mounting structure according to the fifth embodiment of the present invention, the cushion 20 includes a mounting direction display unit 26 indicating a mounting direction with respect to the panel 10 and the housing 30. This is different from the fourth embodiment.
By setting it as such a structure, it can prevent that the cushion 20 is attached to the panel 10 or the housing | casing 30 in the wrong direction.

The cushion 20 of the second embodiment or the third embodiment in which the housing side cushion 21 and the panel side cushion 22 are integrally connected has the advantage that it can be attached in the same manner as a normal cushion or the like. You may make a mistake.
When the mounting direction of the cushion 20 of the second and third embodiments is reversed, the pressure 52 received from the panel 10 or the housing 30 is converted into a force that pushes the film material 11 inward, This will encourage the occurrence of bulges.
Therefore, in the present embodiment, the mounting direction display unit 26 that displays the correct mounting direction is provided so that the above-described problem of the mounting direction does not occur.
The attachment direction display unit 26 of the present embodiment is configured such that, for example, the panel-side attachment direction is indicated by an arrow on the outer surface of the cushion 20, thereby allowing the normal attachment direction to be easily determined at a glance. .

As described above, the panel mounting structure, the sandwiching member, and the panel mounting method using the sandwiching member according to the present invention have been described with reference to preferred embodiments. However, the mounting structure, the sandwiching member, and the panel according to the present invention have been described. The attachment method is not limited to the above-described embodiment, and it goes without saying that various modifications can be made within the scope of the present invention.
For example, in the above-described embodiment, the sandwiching member has been described as a cushion, but the sandwiching member may be implemented as a spacer that cannot be elastically deformed.
In the above-described embodiment, it is assumed that the housing side cushion and the panel side cushion are formed using the same material member, but the housing side cushion and the panel side cushion are formed using different materials.・ It can be implemented.

  The present invention can be suitably used for attaching a touch panel having a film material on the surface. However, the present invention can be applied not only to the touch panel but also to various panels as long as the panel has a film material on the surface. For example, it can be applied to a mounting structure such as a liquid crystal panel having a protective film or a polarizing film attached to the surface.

It is a disassembled perspective view which shows the attachment structure of the panel which concerns on 1st embodiment of this invention. It is sectional drawing which shows the attachment structure of the panel which concerns on 1st embodiment of this invention. It is operation | movement explanatory drawing of the clamping member which concerns on 1st embodiment of this invention. It is sectional drawing which shows the attachment structure of the panel which concerns on 2nd embodiment of this invention. It is sectional drawing which shows the attachment structure of the panel which concerns on 3rd embodiment of this invention. It is sectional drawing which shows the attachment structure of the panel which concerns on 4th embodiment of this invention. It is a cross-sectional perspective view which shows the attachment structure of the panel which concerns on 5th embodiment of this invention. It is sectional drawing which shows the panel attachment structure (normal attachment state) through the clamping member. It is sectional drawing which shows the panel attachment structure (wrinkle generation | occurrence | production state) via a clamping member. It is sectional drawing which shows the panel attachment structure (diagonal attachment state) through the clamping member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Panel 11 Film material 20 Cushion 21 Case side cushion 22 Panel side cushion 23 Slope 24 Adhesive 25 Elastic sheet member 26 Attaching direction display part 30 Case 31 Opening part 32 Frame part 40 Adhesive

Claims (11)

A housing, a panel attached to the housing, and a sandwiching member disposed between the housing and the panel,
The sandwiching member is
A panel mounting structure comprising force conversion means for converting pressure received from the panel and / or the housing into a force pulling the panel surface toward the peripheral edge of the panel. The sandwiching member is
A housing side member attached to the housing side;
A panel side member attached to the panel side,
The casing side member and the panel side member have slopes in surface contact with each other,
The panel mounting structure according to claim 1, wherein the pressure received from the panel and / or the casing by the surface contact portion between the inclined surfaces is converted into a force pulling the panel surface in the peripheral direction of the panel. .   The panel mounting structure according to claim 2, wherein the slope of the housing side member and the slope of the panel side member are connected via an adhesive.   4. The panel mounting structure according to claim 2, wherein a side surface of the housing side member and a side surface of the panel side member are connected via an elastic sheet member. 5.   The panel mounting structure according to claim 2, wherein the casing side member and / or the panel side member are formed using a material having a high coefficient of thermal expansion.   The panel attachment structure according to claim 1, wherein the sandwiching member includes an attachment direction display unit that indicates an attachment direction with respect to the panel and / or the housing.   The panel mounting structure according to claim 1, wherein the panel includes a touch panel having a film material on a surface thereof. A sandwiching member disposed between a housing and a panel attached to the housing;
A sandwiching member comprising force conversion means for converting a pressure received from the panel and / or the housing into a force for pulling the panel surface in the peripheral direction of the panel. A housing side member attached to the housing side;
A panel side member attached to the panel side,
The casing side member and the panel side member have slopes in surface contact with each other,
The sandwiching member according to claim 8, wherein the pressure received from the panel and / or the casing by the surface contact portion between the inclined surfaces is converted into a force pulling the panel surface in the peripheral direction of the panel. A mounting method of a panel in which a sandwiching member is disposed between a housing and a panel, and the panel is attached to the housing,
A method for attaching a panel, wherein the pressure received from the panel and / or the housing via the sandwiching member is converted into a force pulling the panel surface in the peripheral direction of the panel. The sandwiching member is formed into a housing side member attached to the housing side and a panel side member attached to the panel side, having slopes in surface contact with each other,
The panel mounting method according to claim 10, wherein the pressure received from the panel and / or the housing by the surface contact portion between the slopes is converted into a force pulling the panel surface in the peripheral direction of the panel. .

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