KR20170087165A

KR20170087165A - Supporting apparatus with sticky pad for electronic device

Info

Publication number: KR20170087165A
Application number: KR1020160006831A
Authority: KR
Inventors: 김현덕
Original assignee: 김현덕
Priority date: 2016-01-20
Filing date: 2016-01-20
Publication date: 2017-07-28

Abstract

A mounting device for a portable electronic device having a pressure-sensitive adhesive pad according to the present invention comprises: a main body having a side wall part and a space surrounded by the side wall part, the main body being adhered to one side of the portable electronic device; A cover that is openably and closably attached to the main body through an opening / closing portion; And a pressure-sensitive adhesive pad mounted on the space, the pressure-sensitive adhesive pad having a pressure-sensitive adhesive material on the pressure-sensitive adhesive surface, the pressure-sensitive adhesive pad being adhered to an object to be mounted while the cover is open.
According to the present invention, it is possible to attach / detach portable electronic devices to various mounting objects to maintain / preserve the adhesive force of the adhesive pads while ensuring the freedom of the user, So that the portable electronic apparatus can be mounted in various angles and directions while realizing a simple opening and closing operation.

Description

TECHNICAL FIELD [0001] The present invention relates to a mounting device for a portable electronic device having a pressure-sensitive adhesive pad,

The present invention relates to a mounting device for a portable electronic device having a pressure-sensitive adhesive pad. More particularly, the present invention relates to a pressure-sensitive adhesive pad having an adhesive force in a main body having a cover that can be opened and closed, The present invention relates to a portable electronic device mounting device capable of attaching and detaching a portable electronic device such that the pad is detachably attached to a mounting object such as a wall surface, a floor surface, and a dashboard of a vehicle.

In general, 'portable electronic devices' include mobile phones (Feature Phone), MP3 (Moving Pictures Experts Group (MPEG) -1 Audio Layer-3), PMP (Portable Media Player), PDA (Personal Digital Assistant) laptop, notebook, mini notebook, UMPC (Ultra-mobile Personal Computer), tablet PC, smart phone, Navigation for car mount, Play Station Portable, ), &Lt; / RTI > and the like.

As miniaturization technology of such portable electronic device has been developed day by day, the weight of the device has been reduced to a few tens of g, and the volume of the device has been considerably reduced.

In particular, smartphones that combine the functions of mobile phones, PDAs, or existing PCs are not only capable of communicating with existing voice call-oriented mobile phones, but also functions as a PDA's network function and scheduling function, personal information management function, Search function, and so on. In addition to voice communication through a portable terminal, video call and transmission, enjoyment of music through MP3 function, and video broadcasting contents through DMB can be enjoyed. In addition to the navigation function through GPS , Enjoying games, downloading novels and cartoons, etc. With its remarkable convenience and various functions, the company has become the center of mobile devices with a high growth rate of over 13% annually in the global economic recession.

A smartphone, which is a typical product of portable electronic devices, is mainly used by hand, but when placed on a desk or a table, watching a broadcast or a movie, and putting the portable terminal on a desk, There is a problem that the image is not displayed clearly. In order to solve such a problem, a cradle for allowing the portable terminal to be inclined relative to the desk is used.

However, in the known stand, a portable electronic device is mounted on a flat surface such as a top surface of a desk. When the flat surface is not a horizontal surface like a desk surface but a vertical surface such as a wall surface or an inclined surface, There is a problem that it can not be mounted.

In order to prevent such a problem, a number of pressure sensitive adhesive pads sold under the generic name of GEL PAD are used at present. The pressure sensitive adhesive pad is made of polyurethane or a composite resin of urethane and silicone, And is detachably attachable to a specific surface along with adhesive force so as to be detachable to a dashboard of a vehicle. As an example of the prior art, there is a technology such as a washable adhesive mat, which is a Korean Patent Registration No. 0997736 Lt; / RTI >

However, in the case of such an adhesive mat or adhesive pad, even if it includes an adhesive material which can be desorbed by a plurality of times, even if the adhesive surface is exposed, the problem that the adhesive force is lowered I have to follow.

In addition, referring to the prior art for a protective case, which is a universal accessory of a portable electronic device, a case for a portable terminal equipped with a sticky gel pad, which is a domestic registered utility model 462364, removes a portable electronic device It is possible to know that the adhesive gel pad is provided.

However, the above-described technique is used as a means for accommodating portable electronic devices in the case, but has a limitation that it can not be used as a mount or a mounting device because it can not provide a function for attaching it to a wall surface or an inclined surface.

Therefore, the portable electronic device can be mounted on a mounting object such as a wall surface or an inclined surface so as to be detachable through a pressure-sensitive adhesive pad having a pressure-sensitive adhesive force. A target pressure-sensitive adhesive There is a need to develop a new and advanced means of providing functions.

Disclosure of the Invention The present invention has been conceived to overcome the problems of the prior art, and it is an object of the present invention to provide a pressure-sensitive adhesive pad having an adhesive force and to provide a structure for protecting the pressure- It is a principal object of the present invention to provide a mounting device capable of maintaining and preserving the adhesive force of the adhesive pad.

It is another object of the present invention to provide a means for adjusting the angle and direction of a mount.

Another object of the present invention is to provide a structure capable of ensuring the swingability of a portable electronic device while simultaneously ensuring convenience of replacement and excellence of combination.

It is a further object of the present invention to provide a means for adjusting the exposure range and the attachment angle of the adhesive pad.

In order to achieve the above object, the present invention provides a mounting device for a portable electronic device, comprising: a main body having a side wall part and a space surrounded by the side wall part; A cover that is openably and closably attached to the main body through an opening / closing portion; And a pressure-sensitive adhesive pad mounted on the space, the pressure-sensitive adhesive pad having a pressure-sensitive adhesive material on the pressure-sensitive adhesive surface, the pressure-sensitive adhesive pad being adhered to an object to be mounted while the cover is open.

The main body further includes a bottom portion including an adhesive sheet for sealing the end portions of the side wall portion, which is the side of the portable electronic device, for adhering the pressure sensitive adhesive pad.

In addition, the bottom portion may include a base protruded at a predetermined height in a state of having a hollow portion formed with a thread on an inner peripheral surface thereof, and a coupling portion that threadably engages the base in a state where the adhesive pad is coupled to the base through the adhesive sheet. And a panel is further included.

According to the present invention, there is provided a mounting device for a portable electronic device,

1) The adhesive force of the adhesive pad can be maintained / preserved while ensuring the user's free activity by attaching the portable electronic device to various mounting objects,

2) The portable electronic device can be mounted in various angles and directions while realizing a simple opening and closing operation by various structures of the cover,

3) It is possible to conveniently adjust the exposure range and height of the adhesive pad while ensuring more firmly coupled to the body and convenience of replacement,

4) According to various structures of the pressure-sensitive adhesive pad, it is possible to attach the pressure-sensitive adhesive tape at a free angle to a stationary object.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a basic structure and principle of a mounting apparatus of the present invention. FIG.
2 is a perspective view showing a modified embodiment of the cover of the present invention.
3 is a cross-sectional view showing a first modified embodiment of the body of the present invention.
4 is a cross-sectional view showing a second modified embodiment of the body of the present invention.
5 is a sectional view showing a first modified example of the adhesive pad of the present invention.
6 is a perspective view showing a first modification of the adhesive pad of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale and wherein like reference numerals in the various drawings refer to like elements.

1 is a perspective view showing a basic structure and principle of a mounting apparatus of the present invention.

The mounting device of the present invention is attached to one side of a portable electronic device (or a case worn on a portable electronic device), preferably to the back side (generally the opposite side of the front surface on which the display portion is provided) It is possible to conveniently attach and detach to gravity-resistant surfaces such as a vertical surface and an inclined surface, and to provide a property for further preserving such desorption characteristics.

1, the mounting apparatus of the present invention basically includes a main body 100, a cover 200, and a pressure-sensitive adhesive pad 300. As shown in FIG.

The main body 100 includes a space 120 which is a space for accommodating the adhesive pad 300 to be described later. The main body 100 has at least one side wall portion 110, 130).

The side wall part 110 protrudes at a predetermined height from the back surface of the portable electronic device 1 and is extended to a certain closed curved surface When the main body 100 has a rectangular cross-sectional structure, the wall 100 has a closed curved surface shape of a single curved line when the main body 100 has a square cross-sectional structure. . The side wall portion 110 may be formed in a shape of a solid such as a polygon such as a pentagon, a polygon such as a pentagon, or a specific character as well as a shape of a circle, a square, etc. In other words, It is responsible for determining the outline.

In addition, the size of the side wall portion 110 (i.e., the volume / area of the space) can be adjusted to correspond to the size of the portable electronic device 1 at a level capable of exhibiting a stable bonding force to the portable electronic device 1, &Lt; / RTI >

The side wall portion 110 is provided with a bonding means such as an adhesive on the side facing the portable electronic device 1 and is attached securely and firmly to one side of the portable electronic device (or the case surrounding the portable electronic device) And it is possible to further include the bottom portion 130 (see FIG. 3) to enhance such attaching function.

The space 120 plays the role of accommodating or coupling the adhesive pad 300 to be described later with a space surrounded by the side wall portion 110.

The bottom part 130 can be additionally provided in the main body 100. The bottom part 130 seals a portion facing the portable electronic device 1 in the space 120 to secure the main body 100 securely to the portable electronic device 1. [ Thereby providing a basic function for ensuring a sufficient attachment area that can be attached. The bottom portion 130 is not limited to the area enclosed by the side wall portion 110 but may be larger than the bottom portion 130, thereby ensuring a sufficient attachment area.

Here, the adhesive means to be applied to the side wall portion 110 and the bottom portion 130 may be a gel pad to be described later in order to provide detachability with the portable electronic device 1, but in order to secure a more secure mounting function, It is preferable that it is made of an adhesive capable of boasting an adhesive strength.

In addition, in order to protect the back surface of the portable electronic device 1, the mounting device of the present invention is designed to protect the rear surface of the portable electronic device 1 by using a kind of protective case for housing the portable electronic device 1, It is preferable to adhere to the back surface of the case.

Alternatively, the mounting device of the present invention may form part of the protective case, that is, it may provide a structure in which the mounting device of the present invention is integrally mounted in the through hole penetrating a part of the protective case.

The cover 200 according to the present invention provides a function of opening and closing the main body 100 through the opening and closing part 410. In essence, when the adhesive pad 300 is not adhered to the object to be fastened, And serves to preserve the adhesive force of the adhesive pad 300.

The cover 200 may be thinly formed in the form of a sheet or a panel but it is necessary to expose the adhesive pad 300 to the top of the side wall portion 110 when the cover 200 is opened. It is preferable that the side wall 210 is provided so as to have a constant height so that a part of the upper end of the adhesive pad 300 is accommodated in a separate hollow space formed therein.

The opening and closing part 410 that provides the function of ensuring the opening and closing of the cover 200 is mounted on at least one side of the adhesive part between the cover 200 and the main body 100 and can have various opening and closing structures. For example, although FIG. 1 shows an example in which the hinge is mounted, the present invention is not limited to this, but a sliding door opening / closing structure (sliding movement type structure by guide groove / rail coupling) The wrinkle structure may be formed.

In addition, when the main body 100 is a rectangular parallelepiped, for example, the opening / closing part 410 may be mounted on one side or the other side of the side wall 110, in other words, .

The opening and closing part 410 may also adjust the opening angle of the cover 200 so that when the cover 200 is fully opened or opened at 180 degrees and the adhesive pad 300 is adhered to the object to be mounted, It is more preferable to prevent it from being mounted or obstructed.

In addition, the cover 200 retains a predetermined fixing force (locking force or detachable coupling force) for maintaining the closed state when the main body 100 is covered with the lock portion 420 formed on the opposite side of the opening / closing portion 410 It is possible.

The lock portion 420 is formed to correspond to one side (opposite side of the opening / closing portion) of the main body 100 and the cover 200 and includes a rigid / Various kinds of locking structures such as an adhesive material (a material such as an adhesive pad) applied to the joint portion of the cover 200 and the main body 100 as well as the hook, the magnet, and the like can be applied. The lock portion 420 prevents the cover 200 from being opened unnecessarily, and provides a characteristic that the cover 200 can be opened by an external force action by a simple operation of the user.

The adhesive pad 300 of the present invention is a material (adhesive material), which is also called a gel pad, or a structure including the same, which is formed into a gel-like three-dimensional shape and is accommodated in the space 120 described above Is a kind of adhesive means. The adhesive pad 300 may provide a characteristic that the entire volume of the adhesive pad 300 is made of an adhesive material, or that the adhesive pad 300 can include an adhesive material at the center of the adhesive area, and can be reused after cleaning. Here, the adhesive material may be a flexible polyurethane or a composite resin of silicone and urethane, and various materials capable of providing adhesive force may be applied. Since the adhesive material is not largely different from a known gel pad, a detailed description thereof will be omitted.

The adhesive pad 300 is accommodated in the space 120 by its own adhesive property or attached to the bottom part 130, that is, when the cover 200 is opened, one side thereof is exposed to the outside . The exposed surface is adhered to a mounting object such as a wall surface, an inclined surface, or a curved surface such as a dashboard of a vehicle, thereby providing a function that the portable electronic device 1 can be mounted on a mounting object.

In particular, since the adhesive pad 300 is made of a gel type and deforms freely, it is not necessarily adhered to only the flat surface, but can be adhered to the curved surface of the dashboard of the vehicle.

The back side of the portable electronic device 1 (or the portable electronic device case) by the self-adhesive force of the adhesive pad 300 at the lower side of the adhesive pad 300, that is, at the space 120 area on the side of the portable electronic device 1 But the adhesive pad may be adhered via the adhesive sheet 140 to which adhesive is applied to one side of the bottom portion 130 to provide a strong adhesive force that is not adhesive.

According to the above-described structure, the holding device of the present invention normally keeps the cover 200 covered with the main body 100 to prevent the adhesive pad 300 from being exposed to the outside, The cover 200 is opened to allow at least a part of the adhesive pad 300 to be exposed to the outside and to adhere it to the object to be stuck. In other words, the object is secured to various objects such as a wall surface and an inclined surface While retaining the adhesive strength for a longer period of time.

In addition, the user may be provided with an advantage that the portable electronic device can be attached to a universal mounting object desired by the user so that the freedom of both hands can be assured.

2 is a perspective view showing a modified embodiment of the cover of the present invention.

The cover 200 of the present invention provides the function of preserving the adhesion of the adhesive pad 300 as described above, but rather a variant embodiment of the cover according to Fig. 2 is provided with a flat holder < RTI ID = 0.0 > And the like.

Specifically, the cover 200 according to FIG. 2 has at least one folded portion 230 and functions to fold a part of the cover 200 around the folded portion 230. The upper surface of the side wall 110 of the main body 100 may have a plurality of coupling grooves 111 formed at predetermined distances.

The folding unit 230 has a function of a hinge-like structure extending from the first surface of the cover 200 to the second surface of the cover 200 at a predetermined interval from the first surface to the second surface. ), And the folded end is folded on the basis of the fixed end. In addition, the folding unit 230 may include a plurality of folding ends 240, which are formed in parallel at regular intervals. In particular, when two or more folding portions 230 are provided, the portable electronic device 1 can be mounted on a plane with a predetermined height and angle by making it into a triangular cross-section or a square cross-sectional shape.

When the single or plural folded portions 230 are provided, the end of the folded end 240 may be coupled to the aforementioned coupling groove 111 so that the entire folded folded end 240, such as 'g' or 'c' Or a part thereof is folded in a multi-tiered state, and as a result, the mounting height and angle can be adjusted according to the user's convenience.

Further, the cover 200 can include an extended folding end 250 that extends further outwardly around the folding portion 230 formed at a position corresponding to one end of the main body 100. Also, at least one folded portion 230 may be included in the extended folded end 250.

That is, the area of the cover 200 can be larger than the area of the main body 100 by the extended folding step 250. In the normal state, the extended folding step 250 is folded and fixed by the above- While maintaining the state, the flat mount can be expanded or folded to provide a more stable mounting height and angle.

In addition, a sheet of smooth material such as vinyl, that is, a protective sheet 260 is laminated on the inner surface of the cover 200, that is, the surface contacting the upper side of the adhesive pad 300 when the cover 200 is closed, The adhesive force of the adhesive pad 300 is prevented.

Alternatively, a sub-adhesive pad 301 of the same material as that of the adhesive pad 300 is attached to the inner surface of the cover 200 instead of the protective sheet 260, so that when the cover 200 is opened, The pad 300 and the sub-sticking pad 301 on one side of the cover 200 simultaneously provide an adhesive force to the object to be stuck, thereby exerting a more stable sticking relationship. At this time, when the cover 200 is closed by the self-stretchability of the pressure-sensitive adhesive pad 300, the pressure-sensitive adhesive pad 300 and the sub-pressure-sensitive adhesive pad 301 are compressed while being in contact with each other, They can be stretched and adhered.

3 is a cross-sectional view showing a first modified embodiment of the body of the present invention.

As described above, the adhesive pad 300 is exposed to the outside when the cover 200 is opened, and is adhered to the mounting object. At this time, the height of the adhesive pad 300 is required to be higher than the height of the side wall 110 Adhesion can be ensured. Of course, when the cover 200 is closed due to the elasticity of the adhesive pad 300, the compressed adhesive pad 300 may be pulled slightly outward by the user to stretch the adhesive pad 300 300 may be ensured, but it may be necessary to further improve the height.

In addition, although the adhesive pad 300 can preserve the adhesive force for a long period of time in comparison with known gel pads due to the above-described structure and function, it does not provide a constant adhesive force, ), It is necessary to provide a function to rotate 360 degrees in a horizontal direction, which is one characteristic of the mounting function.

To this end, the bottom part 130 of the main body 100 according to the present invention further includes a coupling panel 132 which is threadably engaged with the base 131. [

As shown in FIG. 3, the base 131 has a hollow 131a having a thread 131b formed on an inner peripheral surface thereof and protrudes at a predetermined height. The coupling panel 132 is provided with a thread 132a on the outer circumferential surface in a state of having a diameter (cross sectional area) corresponding to the hollow portion 131a of the base 131 so as to be threadably engaged with the base 131 And the adhesive sheet 140 is laminated on one surface facing the outside, and the adhesive pad 300 is bonded thereto.

According to this structure, when the adhesive force of the adhesive sheet 140 is exhausted, the coupling panel 132 having the adhesive pad 300 firmly coupled to the bottom portion 130 by the adhesive sheet 140 is attached to the base And at least the coupling panel 132 is rotated 360 degrees in the clockwise / counterclockwise direction with respect to the base 131 by the threaded engagement between the base 131 and the coupling panel 132 As a result, it is possible to rotate the portable electronic device 1 in a desired direction and angle.

At this time, although not shown in the drawing, in order to prevent unintentional disconnection of the coupling panel 132 when the portable electronic device 1 is rotated in one direction only by thread engagement, It is possible not only to provide the bearing on one side of the base 131 but also to arrange to stop idling in this bearing and perform thread rotation again when this bearing receives a pressing force by the user. That is, when rotating the portable electronic device 1, when the coupling panel 132 is to be separated while allowing idle rotation, it is possible to apply a structure in which a pressing force is additionally applied to release the coupling panel 132 .

In addition, when the coupling panel 132 is rotated a plurality of times in one direction within a range in which the coupling panel 132 is not separated according to the thread coupling relationship, the coupling panel 132 protrudes outward, It is possible to secure an exposure area projected outward than the height of the side wall part 110 to face the mounting object.

In addition, the base 131 and the coupling panel 132 may be hinged without threading to provide a function that is more rotationally focused than convenience of replacement.

The base 131 and the coupling panel 132 can not only ensure the horizontal rotation of the portable electronic device 1 but also adjust the exposure height of the adhesive pad 300, It is possible to provide various characteristics that are firmly adhered to each other in the body 100 and can secure the convenience of replacement.

4 is a cross-sectional view showing a second modified embodiment of the body of the present invention.

4 illustrates that the sidewall 110 is formed by the bellows portion 112. At this time, the opening and closing portion 410 has a structure in which the opening and closing portion 410 is bent and elongated by a predetermined length. When the sidewall portion 110 is contracted It is preferable that the cover is moved in the shrinking direction more naturally with the side wall portion 110. [

The bellows portion 112 has a plurality of wrinkles formed at regular intervals in a direction perpendicular to the extending length of the sidewall portion 110 and provides a property of elongation and contraction due to external force.

When the cover 200 is opened with the side wall part 110 covered by the cover 200, when the user presses the upper surface of the side wall part 110, that is, the bellows part 112, So that the adhesive pad 300 is relatively exposed to the outside while securing the adhesive area toward the mounting object.

Particularly, when the cover 200 has a certain thickness, the cover 200 is also made of the bellows portion 112 so that the cover 200 is contracted at the same time so that the protrusion height for securing the adhesive area of the adhesive pad 300 Can be guaranteed.

5 is a cross-sectional view showing a first modification of the adhesive pad of the present invention.

5, the adhesive pad 300 comprises at least a double material of the adhesive pad 300, and specifically includes the first structure 310 and the elastic member 320.

The first structure 310 is located at a position facing the cover 200 in a state where the adhesive material is present and exhibits the adhesive force of the adhesive pad 300 described above.

The elastic member 320 is attached to the adhesive sheet 140 of the bottom part 130 at a predetermined height while being coupled to the lower end of the first adhesive structure 310, (Stretch ratio) greater than the stretching ratio (stretching ratio).

Here, the elongation ratio refers to a ratio of elongation without stretching, that is, a value obtained by dividing the difference between the maximum elongated length and the original length by the original length and calculating the elongation by percent (%).

That is, the elastic member 320 has a property of extending more than the first structure 310, that is, has a higher compressive or tensile force than the first structure 310, so that when the cover 200 is covered, The elastic member 320 can be stably received in the space 120 as compared with the adhesive pad 300 composed of the elastic member 320. When the cover 200 is opened, So as to be exposed to the outside.

This allows the first structure 310 of the adhesive pad 300 to be accommodated in the space 120 more reliably or exposed to the outside in spite of the opening and closing of the cover 200, .

6 is a perspective view showing a second modification of the adhesive pad of the present invention.

The adhesive pad 300 according to FIG. 6 is composed of a convex portion 330 having an end protruding outwardly convexly toward the object to be mounted, and the convex portion 330 is not formed of a curved surface having a single curved line, And has a flat surface 331 of a three-dimensional structure.

According to the convex portion 330 provided with the flat surface 331 as described above, the user can select the flat surface 331 to be adhered to the mounting object, and as a result, the mounting angle of the portable electronic device 1 Quot; can be adjusted or changed.

As described above, the configuration and operation of a mounting device for a portable electronic device having a pressure-sensitive adhesive pad according to the present invention have been described above and illustrated in the drawings, but the present invention is not limited thereto. And it is to be understood that various changes and modifications may be made without departing from the spirit of the invention.

1: portable electronic device 100: main body
110: side wall portion 111: engaging groove
112: Bellows 120: Space
130: bottom 131: base
131a: hollow portion 131b: threaded portion
132: Joining panel 132a:
140: adhesive sheet 200: cover
210: side wall 220: hollow space
230: folded portion 240: folded folded portion
250: Extend folding end 260: Protective sheet
300: adhesive pad 301: sub-adhesive pad
310: first structure 320: elastic member
330: convex portion 331: flat surface
410: opening and closing part 420:

Claims

A mounting device for a portable electronic device having a pressure-sensitive adhesive pad,
A main body having a side wall part and a space surrounded by the side wall part, which is adhered to one side of the portable electronic device;
A cover that is openably and closably attached to the main body through an opening / closing portion;
And a pressure-sensitive adhesive pad mounted on the space, the pressure-sensitive adhesive pad having a pressure-sensitive adhesive on the pressure-sensitive adhesive surface, the pressure-sensitive adhesive pad being adhered to the pressure-sensitive adhesive object while the cover is open.

The method according to claim 1,
The main body includes:
And a bottom portion including an adhesive sheet for adhering the pressure sensitive adhesive pad by sealing between the end portions of the side wall portion which is the side of the portable electronic device.

3. The method of claim 2,
The bottom portion
A base protruded at a predetermined height in a state of having a hollow portion having an inner peripheral surface formed with a thread,
Wherein the adhesive pad further comprises a coupling panel which threadably engages the base in a state where the adhesive pad is coupled to the base through the adhesive sheet on one side.

The method according to claim 1,
The cover
And at least one folded-back portion extending from the one surface to the other surface,
On the upper surface of the side wall portion,
And a plurality of engaging grooves formed at predetermined intervals,
Wherein one end of the cover folded by the folding unit is coupled to the engaging groove.

5. The method of claim 4,
The cover
Further comprising an extended folding end which is further extended outward at one side end corresponding to the main body and has at least one folded-back portion.

The method according to claim 1,
The side-
Wherein the bellows portion is provided with a plurality of wrinkles.

The method according to claim 1,
The pressure-
A first adhesive structure facing the cover side with the adhesive material therebetween,
And a stretching member having a greater elongation percentage than that of the first adhesive structure, the stretching member being attached to a lower end of the first adhesive structure and extending at a predetermined height and being adhered to the adhesive sheet of the bottom portion. , A mounting pad for a portable electronic device.

The method according to claim 1,
The pressure-
And a convex portion provided on one side toward the cover side and formed outwardly convex in a state of having at least one flat surface.