KR102139206B1 - Resizable case for mobile device - Google Patents

Abstract

The present invention relates to a resizable case for a portable device wherein a length and width can be adjusted and each corner of which has a second length adjustment unit for detailed adjustment, so that the resizable case can be installed in the portable device having various sizes without a gap. The present invention provides a resizable case for a portable device including: (a) a case main body installed in a rear surface of the portable device and including a first length adjustment unit and a second length adjustment unit extending at an angle of 90 degrees with respect to an outer vertex of the rear surface of the portable device; (b) a first fixing unit for connecting the first length adjustment unit and an adjacent first length adjustment unit; (c) a second fixing unit for connecting the second length adjustment unit and an adjacent second length adjustment unit; and (d) a corner protection unit installed while extending from a portion of the case main body forming an angle of 90 degrees to the front of the portable device.

Description

Resizable case for mobile device}

The present invention relates to a case for a portable device that can be sized, and in more detail, both the length and the width can be adjusted, and according to the second length adjustment unit for detailed adjustment at each corner, a mobile device having various sizes It relates to a case for a portable device that can be adjusted in size that can be installed without any gap.

In the modern society, mobile devices, especially mobile phones, have a great influence on people's lives. Most of the functions used by the existing desktop computer, such as listening to music, surfing the Internet, paperwork, and games, including phone calls, which are the first purposes of mobile phones, are implemented as portable devices.

However, as multiple functions are implemented in this way, the degree of integration of portable devices increases, and as the size of each component decreases, the probability of damage and failure due to impact increases. In particular, the front liquid crystal, which occupies the largest part of mobile devices, is exposed to the front and uses glass that is weak to impact as its main material, so it can be said that most of the damage caused by impact is concentrated on this front liquid crystal display. .

In order to prevent damage caused by such an impact, many users use cases for portable devices. This portable device case is made of a variety of materials such as plastic with silicone that can absorb shock, so it can absorb the shock applied to the mobile device, but as the thickness increases, the appearance of the mobile device is damaged. In addition, in order to overcome this problem, a case for a portable device made of a metal material is also being sold, but it has a problem of a short lifespan due to a problem of radio wave transmission and a low shock absorption rate and a corrosion phenomenon peculiar to metal.

However, the fundamental problem of such a mobile device case is that it degrades expandability, and most cases for mobile devices are manufactured exclusively according to the design of each mobile device, so when changing a mobile device, the mobile device case must also be changed. It has a disadvantage.

In particular, the replacement of mobile devices is carried out at the same time as the period of 2 to 3 years after the contract ends, and considering that most of the buyers buy new devices, a large amount of mobile device cases are discarded as each mobile device is replaced. Is losing. Therefore, it is necessary to develop a new case to improve such waste of resources and financial damage.

(0001) Republic of Korea Public Utility Model No. 20-2016-0001449 (0002) Korean Patent Registration No. 10-1701051

In order to solve the above-described problem, the present invention can adjust both the length and the width, and as it has a second length adjustment unit for detailed adjustment at each corner, the size adjustment that can be installed on a mobile device having various sizes without gap We want to provide a case for mobile devices that can be used.

In order to solve the above-described problem, the present invention includes (a) a first length adjustment unit and a second length adjustment unit installed at the rear of the mobile device and extending at an angle of 90 degrees around the outer vertex of the mobile device. A case body; (b) a first fixing part connecting the first length adjusting part and the adjacent first length adjusting part; (c) a second fixing part connecting the second length adjusting part and the adjacent second length adjusting part; And (d) it provides a case for a portable device that can be sized, including a corner protector extending from a portion of the case body forming an angle of 90 degrees to the front of the mobile device and installed.

The case body may be divided into four and installed at four corners of the mobile device, and may be connected to a first fixing part and a second fixing part to form a square shape.

The first length adjustment unit is located at the upper and lower rear portions of the mobile device, and may be 3 to 15 mm wide and 20 to 40 mm long.

The second length adjustment unit is located on the left and right sides of the mobile device, and may be 3 to 15 mm in width and 40 to 80 mm in length.

The first length adjusting part and the second length adjusting part are installed along the outer periphery of the rear surface of the portable device, and may not cover a side surface.

The first fixing portion is 3 to 15 mm in width, 20 to 60 mm in length, and the second fixing portion is 3 to 15 mm in width and may be 40 to 150 mm in length.

The edge protection unit may be provided with an impact preventing means having a thickness of 2 mm or more.

The corner protection unit may include a second length adjustment unit capable of fixing the mobile device by compressing the impact preventing means toward the mobile device.

The case body, the first fixing part, the second fixing part, and the edge protection part may be made of a material including metal, carbon fiber, or polymer.

The case for a mobile device according to the present invention uses a case that can be adjusted according to the size of each mobile device, unlike the existing case that uses a dedicated device according to the mobile device, so that the amount of cases discarded when replacing the mobile device can be minimized. In addition, it is manufactured so as not to interfere with the operation of the antenna installed on the side of the mobile device even when it is installed on a mobile device and used, so it is possible to provide a case for a mobile device that is convenient to use while minimizing the cost and waste of resources consumed in the case purchase.

1 is a photograph of a mobile device case combined with a mobile device according to an embodiment of the present invention.
2 is a photograph of a mobile device case combined with a mobile device according to an embodiment of the present invention.
3 is a picture of a mobile device separated from a mobile device case according to an embodiment of the present invention.
4 is an enlarged photograph of the lower end of a mobile device case according to an embodiment of the present invention.
5 is a detailed photograph showing the lower end of a mobile device case according to an embodiment of the present invention.
6 is a photograph showing in detail the coupling diagram of the corner protection unit according to an embodiment of the present invention.
7 is a photograph showing a side of a mobile device case coupled to a mobile device according to an embodiment of the present invention.
8 is a photograph showing a lower surface of a mobile device case coupled to a mobile device according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail. In the description of the present invention, if it is determined that a detailed description of related known technologies may obscure the subject matter of the present invention, the detailed description will be omitted. Throughout the specification, when a part “includes” a certain component, this means that other components may be further included rather than excluding other components, unless specifically stated to the contrary.

The present invention can be applied to a variety of transformations and may have various embodiments, and thus, specific embodiments will be illustrated and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present invention, terms such as include or have are intended to designate the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and one or more other features, numbers, or steps. It should be understood that it does not preclude the existence or addition possibility of the operation, components, parts or combinations thereof.

The present invention includes (a) a case body installed on the rear side of the portable device and including a first length adjusting unit and a second length adjusting unit extending at an angle of 90 degrees with respect to an outer vertex at the rear of the mobile device; (b) a first fixing part connecting the first length adjusting part and the adjacent first length adjusting part; (c) a second fixing part connecting the second length adjusting part and the adjacent second length adjusting part; And (d) a case for a portable device that can be sized and includes a corner protector extending from a portion of the case body at an angle of 90 degrees to the front of the mobile device.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 and 2, the mobile device case of the present invention is installed on the rear side of the mobile device, and includes a corner protector extended to the front of the mobile device at a corner of the mobile device.

The case body 100 may be divided into four parts and installed, and installed at the rear of the mobile device, the first length adjusting unit 120 extending at an angle of 90 degrees around the outer vertex of the back of the mobile device, and It may include a second length adjustment unit 110. At this time, the first length adjusting part 120 and the second length adjusting part 110 are adjacent to the first length adjusting part 120 and the second length adjusting part 110 and the first fixing part 210 and the second It may be connected to the fixing part 200, and accordingly, the case has a rectangular shape along the outer periphery of the rear of the mobile device. In general, since the camera, speaker, sensor and wireless charging unit are located on the rear of the mobile device, the case is combined to form a square, but the central part is opened to interfere with the operation of the camera, speaker, sensor and wireless charging unit located at the rear of the mobile device. It can be installed so that it does not.

At all times, the first length adjustment unit 120 and the second length adjustment unit 110 may be installed at an angle of 90 degrees centering on the outer vertex of the rear of the portable device. As shown in FIG. 3, the first length adjusting part 120 is installed toward the center of the upper and lower ends of the mobile device at the top and bottom vertices of the rear of the mobile device, and the second length adjusting part 110 is It can be installed from the top and bottom vertices of the rear of the portable device toward the center of the left and right sides of the portable device. In this case, since the mobile device has a rectangular shape, the first length adjustment unit 120 and the second length adjustment unit 110 naturally form an angle of 90 degrees.

The first length adjustment part 120 is located at the upper and lower rear portions of the mobile device, and may be 3 to 15 mm in width and 20 to 40 mm in length, and the second length adjustment part 110 is on the left side of the rear side of the mobile device and It is located on the right side, and may be 3 to 15 mm wide and 40 to 80 mm long. When the width of the first and second length adjustment units 110 and 120 is less than 3 mm, durability may decrease due to the thin width, and when the width exceeds 15 mm, the rear surface of the mobile device is covered, and It may interfere with the operation of cameras, speakers, sensors and wireless charging units installed on the rear of the device. In addition, when the length of the first length adjusting part 110 is less than 20 mm or the length of the second length adjusting part 120 is less than 40 mm, the first and second fixing parts 210, when applied to a small mobile device due to the short length, 220) may protrude to the outside of the case, making it inconvenient to use, and if the length of the first length adjusting part 120 exceeds 40 mm or the length of the second length adjusting part 110 exceeds 80 mm, the small mobile device It is difficult to use.

As an example, in the case of a mobile device having a commercially available 3-inch screen, the width is 60mm and the length is about 120mm, so when the length of the first length adjustment part is less than 20mm or the length of the second length adjustment part is less than 40mm 9 When a case is used in common with a smart phone (about 80mm in width and 165mm in length) having an inch-level screen, the first and second fixing portions may protrude outward. In addition, when the length of the first length adjusting part exceeds 40mm or the length of the second length adjusting part exceeds 80mm, interference occurs between the respective length adjusting parts, so it may be difficult to install a case on a portable device of 3 inches.

The length adjustment unit may adjust the length and width of the case while fixing the first and second fixing portions 210 and 200 at appropriate positions according to the size of each portable device. At this time, 2 to 10 through-holes 300 are installed in the first and second length adjusting parts 120 and 110, which are 2 to 10 installed in the first and second fixing parts 210 and 200. It may be coupled by the through hole 300 and the fixing means 220. At this time, by adjusting the relative positions of the through-hole of the length adjustment part and the through-hole of the fixing part, the width and length of the case for the mobile device can be easily adjusted. It is preferable that the distance between the centers between the through holes 300 is 3 to 5 mm. When the distance is less than 3mm, the durability of the adjustment unit and the fixing unit may be reduced by the through hole 300, and when the distance exceeds 5mm, the adjustment interval is widened, so it is difficult to adjust according to the size of the mobile device. In addition, the through hole 300 may have a diameter of 2 to 10 mm. If the diameter is less than 2mm, as the thickness of the fixing means becomes thinner, the durability may decrease when combined, and if it exceeds 10mm, the durability of the coupling part and the fixing part may decrease.

The fixing means 220 is a means for fixing the size of the case by connecting the through hole 300 of the fixing part and the through hole of the length adjusting part, and a bolt or rivet may be used. When a bolt is used as the fixing means 220, a thread is preferably installed on the inner circumferential surface of the through hole 300, and the bolt may be coupled using this thread. In addition, in the case of the bolt, it is preferable to have a threaded portion having a length that is shorter than the combined thickness of the fixing portion and the length adjusting portion or not longer than 1 mm in order not to damage the portable device when coupled (see FIG. 5). When the threaded portion is longer than the combined thickness of the fixing portion and the length adjustment portion by 1 mm or more, the threaded portion may be excessively protruded toward the portable device through the through hole 300 when combined. It can cause damage. In addition, in the case of using a rivet as the fixing means 220, it is preferable to use a metal rivet that is compressed and bonded from both sides for convenience of reuse, or a polymer resin rivet in which semicircular round heads are connected to each other. In the case of metal rivets that are compressed and bonded from both sides, the size of the case can be adjusted by removing the case when reused and using a new rivet.In the case of rivets made of polymer resin with semicircular round heads connected to each other, the round head on one side is mentioned above. It is possible to connect the fixing part and the length adjusting part by pressing and inserting it into the through hole. For this, it is preferable that the polymer resin round head is manufactured to have a diameter of 1 to 3 mm larger than the diameter of the through hole, and the portion connecting the polymer resin round head is manufactured such that the diameter beam of the through hole is smaller than 0.5 to 1 mm. In addition, when a rivet made of polymer resin in which the round heads are connected to each other is used, the bonding force between the fixing part and the length adjusting part may decrease, but the head of the rivet may serve as an impact absorbing material.

The first length adjustment unit 120 and the second length adjustment unit 110 are installed along the outer periphery of the rear surface of the portable device, and may not cover the side (see FIGS. 7 and 8 ). A speaker, a microphone, an antenna, a charging-data transmission/reception terminal, or an operation button are present on the side and top and bottom of a recently manufactured portable device. Therefore, it is preferable that the first length adjustment unit 120 and the second length adjustment unit 110 are installed along the outer periphery of the rear surface of the portable device so as not to cover the side surface so as not to interfere with the operation of these various devices. In addition, as described above, when the first length adjustment unit 120 and the second length adjustment unit 110 are installed along the outer periphery of the rear surface of the mobile device so as not to cover the side, the first length adjustment unit 120 and the second length adjustment unit Since the first and second fixing portions 210 and 200 connecting the units 10 to each other are also installed along the outer periphery of the rear surface of the device so as not to cover the side, the operation of the device may not be disturbed as much as possible.

The first fixing part 210 has a width of 3 to 15 mm, a length of 20 to 60 mm, and the second fixing part 220 has a width of 3 to 15 mm and a length of 40 to 150 mm. In the case of the fixing part, it is preferable that the width of the fixing part is 3 to 15 mm, which is manufactured to have the same width as the length adjusting part, and the length of the first fixing part 210 is 20 to 60 mm, and the length of the second fixing part 200 Is preferably 40 to 150 mm. When the length of the first fixing part 210 is less than 20mm or the length of the second fixing part 200 is less than 40mm, the length of the fixing part is shortened, making it difficult to use for large mobile devices or the length of the length adjusting part is increased. Depending on the case, it may be difficult to use for small devices, and when the length of the first fixing part 210 exceeds 60 mm or the length of the second fixing part 200 exceeds 150 mm, when applied to a small portable device, the fixing part is outside. It can be protruded and fixed.

The corner protection part 400 may be installed extending from a portion of the case body forming an angle of 90 degrees to the front of the mobile device (see FIG. 4 ). Since the 90° angled portion of the case body is located at four vertices of the portable device, the corner protector may be installed in a direction protruding from the four vertices of the portable device to the front. This corner protection unit includes an impact preventing means (FIG. 6) protruding to a predetermined thickness while fixing the mobile device case so that the mobile device case can be attached to the mobile device, thereby preventing damage due to impact, and a secondary length adjustment unit ( Since 410) is installed, the mobile device can be accurately fixed according to the size of the mobile device.

The corner protection part 400 may include an impact preventing means (FIG. 6). It is preferable that the impact preventing means is installed so as to protrude more than 2mm outward from the edge protection unit and the portable device to prevent damage to the portable device by external impact (see FIGS. 7 and 8). At this time, the impact prevention means is preferably a groove is formed on the lower surface of the corner protection part 400 is inserted into the groove and fixed, and a hole penetrating through the center on the outer surface is formed so that the secondary length adjustment unit 410 It is preferable to be combined with the corner protection unit by. The impact preventing means may be made of elastic polypropylene, TPU, silicone or urethane resin, or made of polycarbonate, carbon fiber reinforced plastic, or glass fiber reinforced plastic having high rigidity. However, in this case, the hardness of the impact preventing means is preferably made of a material lower than the side change degree of the portable device to prevent scratches on the portable device.

The corner protection part 400 may include a second length adjustment part 410 capable of fixing the mobile device by compressing the impact preventing means toward the mobile device. The secondary length adjustment part 410 may further adjust the length by fixing the impact preventing means to the corner protection part 400 and pressing the inner surface of the impact preventing means toward the portable device. In general, each mobile device has a different width and length, and this means that when the distance between the centers between the through holes 220 proposed in the present invention is 3 to 5 mm, each mobile device cannot be accurately fixed and the gap is Can occur. In order to compensate for this, the secondary length adjusting part 410 may adjust the length of 1 to 3 mm by compressing the impact preventing means so that each portable device can be completely fixed to the case.

The case body 100, the first fixing part 210, the second fixing part 200, and the edge protection part 400 may be made of a material including metal, carbon fiber, or polymer, and preferably iron, Aluminum, titanium, or an alloy containing them may be more preferably made of a titanium alloy.

Titanium is a non-toxic light metal used for transplantation of body tissues. It has high human affinity, so it has little effect on the human body even if it is in contact with the human body for a long period of time, and its specific gravity can significantly reduce the weight of the case. In addition, the strength of pure titanium is 30~75kgt/㎟, and the titanium alloy reaches 60~160kgt/㎟, so that a case having high strength can be manufactured. Lastly, in the case of titanium, a titanium oxide film is naturally formed on the surface, and this titanium oxide film is very resistant to corrosion, so when a case is made of titanium, corrosion and oxidation caused by water, detergent, sweat, acid, electricity, etc. can be prevented. have.

In addition, the titanium oxide film may be formed by anodizing. Anodizing is a type of anodizing method. In the case of titanium, various colors may be obtained depending on the voltage applied during anodizing. However, since the color due to the change in voltage is limited, it is possible to manufacture a case of a desired color by coloring after anodizing.

In addition, titanium oxide (TiO2), which is the main component of the titanium oxide film, is used in various fields as a catalyst, and acts as a catalyst to decompose microorganisms and organic matter when in contact with microorganisms, so that when a titanium oxide film is produced on the surface, it is antibacterial and It can have a sterilizing effect.

As the titanium, various metals including titanium may be used, but preferably titanium or a titanium alloy, more preferably an alloy (GR5) having a structure of Ti-6Al-4V may be used. In addition, for the titanium, it is possible to use a base material having a shape of a bar material, a square material, a coil, a wire, a disk or a pipe, but a plate material may be preferably used for the convenience of post-processing.

The titanium may be manufactured through a heat treatment step. The heat treatment step is a step of increasing the radio wave transmittance by heat treatment of the titanium, and may be heat treated at a temperature of 300 to 900°C, preferably 500 to 700°C. When heat treatment is performed at less than 300°C, the radio wave transmittance is lowered, and when heat treatment is performed at a temperature exceeding 900°C, it approaches the melting point of the titanium alloy and softening begins, resulting in poor workability. In addition, the heat treatment may be performed in the presence of oxygen or nitrogen, preferably in air, nitrogen or an oxygen atmosphere, and more preferably in an oxygen atmosphere. In the case of heat treatment without oxygen, there may be no change in radio wave transmittance.

In addition, the heat treatment may be performed for 1 to 50 minutes, preferably 5 to 20 minutes, and most preferably for 10 minutes. In the case of heat treatment for the same time, it can be seen that the higher the heat treatment temperature, the lower the radio wave attenuation rate. However, if the heat treatment time is increased even at a low temperature, the radio wave attenuation rate may be lowered equally. Accordingly, the heat treatment is preferably performed longer as the heat treatment temperature decreases, and shorter as the heat treatment temperature increases. At this time, if the heat treatment is performed for less than 1 minute, the radio wave attenuation rate may be increased, and if the heat treatment is performed for more than 50 minutes, the production efficiency may decrease, and the titanium alloy may be deformed by oxidation.

In addition, the titanium alloy manufactured as described above may have a radio wave attenuation rate of 5 to 50 dB in the 1.5 to 2.5 GHz band. Whereas the conventional titanium alloy has a radio wave attenuation rate of 65 to 80 dB similar to other metals, the titanium alloy according to the present invention has a radio wave attenuation rate of 5 to 50 dB, which is similar to a polymer resin. At this time, since the radio wave attenuation rate is measured by an exponential function, the titanium alloy according to the present invention may have a radio wave transmittance of about 10000 times higher than that of a conventional titanium alloy. In particular, since the radio wave attenuation rate in the 1.5 to 2.5 GHz band used for communication of personal portable devices is low, it is possible to manufacture a case with a high radio wave transmittance when a case for a portable device is manufactured using the titanium alloy according to the present invention.

In addition, the strength of pure titanium is 30~75kgt/mm2, and the titanium alloy reaches 60~160kgt/mm2, so when a case for a portable device is manufactured using the titanium alloy according to the present invention, a case having high strength can be produced. . Lastly, in the case of titanium, a titanium oxide film is naturally formed on the surface, and this titanium oxide film is very resistant to corrosion, so when a case is made of titanium, corrosion and oxidation caused by water, detergent, sweat, acid, electricity, etc. can be prevented. have.

In addition, when manufacturing a case for a portable device using the titanium alloy according to the present invention as described above, the surface may be anodized to improve the aesthetics of the case. Anodizing is a type of anodic oxidation method in which a titanium oxide film is formed by oxidizing the surface of titanium using an electrooxidation method. In addition, titanium may have various colors depending on the voltage applied during anodizing. However, since the color due to the change in voltage is limited, it is possible to manufacture a case of a desired color by coloring after anodizing.

As described above, specific parts of the present invention have been described in detail, and it will be apparent to those of ordinary skill in the art that these specific techniques are only preferred embodiments, and the scope of the present invention is not limited thereby. will be. Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

100: case body 110: second length adjustment unit
120: first length adjustment part 200: second fixing part
210: first fixing portion 220: through hole
300: fixing means 400: corner protection
410: secondary length adjustment unit

Claims (9)

(a) a case body installed on the rear side of the mobile device and including a first length adjusting unit and a second length adjusting unit extending at an angle of 90 degrees with respect to the outer vertex of the mobile device;
(b) a first fixing part connecting the first length adjusting part and the adjacent first length adjusting part;
(c) a second fixing part connecting the second length adjusting part and the adjacent second length adjusting part; And
(d) a corner protection part extending and installed in the front of the mobile device from a portion forming an angle of 90 degrees of the case body; and,
The case body is divided into four and installed at four corners of the mobile device, and is connected to the first fixing portion and the second fixing portion to be formed in a rectangular shape,
The corner protection part,
It is installed so as to protrude more than 2mm outward than the mobile device to prevent damage to the mobile device by external impact, and a hole through the center of the outer surface is formed, and is inserted into the hole to fix the mobile device It has a secondary length adjustment part,
The case body, the first fixing part, the second fixing part, and the edge protection part are formed of titanium alloy,
The titanium alloy is formed through the step of heat treatment under an oxygen atmosphere for 5 to 20 minutes at 500 ~ 700 ℃,
A case for portable devices that can be sized, characterized in that an oxide film is formed on the surface by anodizing.
The method of claim 1,
The case body is divided into four and installed at four corners of the portable device, and is connected to a first fixing part and a second fixing part to form a quadrangular shape.
The method of claim 1,
The first length adjustment unit is located at the upper and lower rear portions of the mobile device, and a size adjustable mobile device case, characterized in that the width is 3 ~ 15mm, length 20 ~ 40mm.
The method of claim 1,
The second length adjustment unit is located on the left and right of the rear of the mobile device, and a size adjustable mobile device case, characterized in that the width is 3 ~ 15mm, length 40 ~ 80mm.
The method of claim 1,
The first length adjusting unit and the second length adjusting unit are installed along an outer periphery of a rear surface of the mobile device and do not cover a side surface of the mobile device.
The method of claim 1,
The first fixing part is 3 to 15 mm in width and 20 to 60 mm in length
The second fixing portion is 3 ~ 15mm in width and 40 ~ 150mm in length.
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