KR20120116332A - Mobile device case having multi-functional hinge - Google Patents

Abstract

PURPOSE: A mobile electric device case having functional hinge is provided to be easily unfolded by desired angle by applying a hinge module having a tilting function and free stop function. CONSTITUTION: A mobile electric device case having functional hinge comprises a main body(120), a cover(140) and a hinge module. The main body accepts the mobile electric device. The cover covers the front surface of the mobile electric device. The hinge module is pivotally combined with the main body. The main body and cover respectively include the flexible cover and a reinforcing plate placed inside the cover. The hinge module has a free-stop function. The main body or cover is revolved and stopped at an arbitrary angle by the free stop function of the hinge module.

Description

Mobile electronic device case with functional hinge {MOBILE DEVICE CASE HAVING MULTI-FUNCTIONAL HINGE}

The present invention relates to a case for storing a mobile electronic device, and more particularly, a mobile electronic device having a functional hinge that can be stored and carried in a mobile electronic device securely and can be mounted at a desired angle. It relates to a device case.

In the modern world, mobile electronic devices such as mobile phones, PMPs, PDAs, and tablet PCs have become one of the essential items due to the development and miniaturization of technology. Recently, various functions such as video playback, music playback, digital camera, and internet access have been added. Expensive mobile electronics are on the market.

Accordingly, the demand for a case for protecting expensive mobile electronic devices from external shocks and foreign substances such as scratches, scratches, and damages is also increasing. However, the conventional plastic case has a disadvantage in that scratches occur in the main body of the device when the mobile electronic device is attached or detached, or is easily damaged by an external impact. In the case of using a magnet to open or close a cover, leather or a vinyl case may have problems such as deterioration of functions such as GPS, gyroscope, electronic signal detection, or damage to the liquid crystal. In this case, in particular, in the case of a pressure-sensitive device, there is a problem that durability is lowered due to frequent pressurization.

Meanwhile, the above-described mobile electronic devices are electronic devices that can be conveniently carried by a user and adopt a touch screen method of touching a screen with a stylus pen or a finger to input information or retrieve stored information.

However, these mobile electronic devices have been developed with a focus on portable functions so that they can be used regardless of the place. Therefore, when a user places a mobile electronic device in a specific space, such as a desk or a table, the user may properly display the LCD screen. There is a problem that the user must always tilt the mobile electronic device at a proper angle by hand.

In addition, in the case of purchasing a separate cradle, it is inconvenient to carry a cradle every time it is moved, and it may be difficult to carry the cradle due to lack of a storage space such as a bag or a backpack. There is a problem that the probability of failure and damage is increased.

Accordingly, there is a demand for the development of a case capable of functioning as a holder of the mobile electronic device, as well as a function to protect expensive mobile electronic devices from external shocks and foreign substances such as scratches, scratches, and damage.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile electronic device case having a functional hinge, which can be stored and carried in a mobile electronic device safely, and can be used at a desired angle to perform a function of a holder.

The objects of the present invention are not limited thereto, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a mobile electronic device case having a functional hinge according to an embodiment of the present invention, the main body is accommodated mobile electronic devices; A cover covering a front surface of the mobile electronic device; And a hinge module for hingeably rotatable to the main body by tilting the cover, wherein the main body and the cover each include a cover made of a flexible material and a reinforcing plate interposed in the cover.

According to an embodiment of the present invention, the hinge module may have a free-stop function such that the main body or the cover rotates to stop at an arbitrary angle.

According to an embodiment of the present invention, the reinforcing plate of the body and the reinforcing plate of the cover are wrapped in one cover, and the hinge module may be embedded in the cover.

According to an embodiment of the present disclosure, the main body and the cover may be integrally formed.

According to one embodiment of the invention, the hinge module, one side is coupled to any one of the main body and the cover, the other side of the bracket is formed with a pair of bending pieces spaced apart from each other; And one end may be inserted into the pair of bending pieces and the other end may include a rotating shaft inserted into the shaft receiving portion provided on either of the main body and the cover.

According to another embodiment of the present invention, the hinge module includes: a first bracket coupled to the main body; A second bracket coupled to the cover; And a rotating unit pivoting the second bracket in a semi-automatic manner relative to the first bracket.

According to an embodiment of the present invention, the rotating unit is. A first cam member installed on one of the first and second brackets and having a curved first uneven portion formed in a circumferential direction; A second cam member installed on the other one of the first and second brackets, the second cam member having a curved second uneven portion engaged with the first uneven portion along the circumferential direction; A shaft member inserted into the center holes of the first and second cam members; And a spring disposed to surround the shaft member and exerting a force in a direction in which the first and second cam members are close to each other.

According to an embodiment of the present disclosure, the rotating unit may further include a housing having an open cylindrical shape and accommodating the first cam member, wherein the housing may be disposed at any one of the first and second brackets. Coupled, the first cam member may be received in the housing so as not to rotate relative to the housing.

According to an embodiment of the present invention, the first bracket includes a first horizontal plate coupled horizontally to the reinforcing plate of the main body, and a vertical plate coupled vertically to the first horizontal plate, and the second bracket And a second horizontal plate horizontally coupled to the reinforcing plate of the cover, wherein the rotating unit may pivotally couple the vertical plate and the second horizontal plate.

According to the present invention, it is possible to safely and conveniently store and carry mobile electronic devices, and by applying a hinge module to which a tilting function and a free-stop function are applied, it is easy to unfold at a desired angle during use. Can mount mobile electronics.

The drawings described below are for illustrative purposes only and are not intended to limit the scope of the invention.
1 is a perspective view of a mobile electronic device case according to a first embodiment of the present invention,
Figure 2 is a schematic cross-sectional view showing a hinge module built in the mobile electronic device case of Figure 1,
3 is a perspective view illustrating an example in which the mobile electronic device case of FIG. 1 is used as a holder;
4 is a perspective view of a mobile electronic device case according to a second embodiment of the present invention;
5 is an exploded perspective view illustrating a coupling relationship between a hinge module and a shaft accommodating part of the mobile electronic device case of FIG. 4;
6 is a perspective view illustrating an example in which the mobile electronic device case of FIG. 4 is used as a holder;
7 is a perspective view of a mobile electronic device case according to a third embodiment of the present invention,
8 is a perspective view of the hinge module of FIG.
9 is an exploded perspective view of the hinge module of FIG. 8, FIG.
10 is a perspective view of the first cam member of FIG. 9, FIG.
11 is a perspective view of the second cam member of FIG. 9;
12a and 12b are views showing the operating state of the rotating unit,
FIG. 13 is a perspective view illustrating an example in which the mobile electronic device case of FIG. 7 is used as a holder.

Hereinafter, a mobile electronic device case having a functional hinge according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, an example in which a mobile phone and a tablet PC are stored and mounted as an example of the mobile electronic device will be described. However, the present invention is not limited thereto, and the present invention can be applied to various types of mobile electronic devices such as a PMP, a PDA, and a navigator.

(First embodiment)

1 is a perspective view of a mobile electronic device case according to a first embodiment of the present invention, Figure 2 is a schematic cross-sectional view showing a hinge module built in the mobile electronic device case of Figure 1, Figure 3 is a mobile electronic device of Figure 1 It is a perspective view which shows the example in which a case functions as a stand.

1 to 3, the mobile electronic device case 100 having a functional hinge according to the first embodiment of the present invention includes a main body 120 in which the mobile electronic device M is accommodated, and a mobile electronic device ( M) covering the front of the cover 140, wherein the body 120 and the cover 140 is a cover 122, 142 of a flexible material, and the reinforcement plate 124 interposed inside the cover (122, 142) And 144, respectively, and are hinged by the hinge module 160 to be tiltable.

Here, the term 'tilting' refers to an operation of automatically opening or closing according to a critical angle applied by design.

That is, when the cover 140 is rotated by a predetermined angle or more with respect to the main body 120, the cover 140 is automatically opened or closed by an elastic restoring force of an elastic body (not shown) such as a spring. A close vector torque is applied in the closing direction so as not to be opened arbitrarily, and an open vector torque is applied in the opening direction when it is rotated more than a predetermined angle so that an excessive force is not applied when opening.

Here, the main body 120 and the cover 140 is made of a flexible material such as synthetic resin, cloth, leather, etc. 122, 142 and a thin metal or synthetic resin material which is interposed in the cover 122, 142 to maintain the appearance It comprises a reinforcing plate (124, 144).

In addition, the hinge module 160 is preferably embedded in the covers 122 and 124 of the main body 120 and the cover 140 so as not to be exposed in appearance. One side and the other side of the hinge module 160 are the main body 120. By being coupled to the reinforcing plate 124 and the reinforcing plate 144 of the cover 140, respectively, the main body 120 and the cover 140 is hinged rotatably tilted.

At this time, the tilting rotatable hinge module may be applied to a known configuration, the reinforcing plates 124 and 144 of the main body 120 and the cover 140 may be formed integrally, preferably the main body 120 and The reinforcing plates 124 and 144 of the cover 140 may be wrapped by one cover so that a sense of unity may be felt in appearance.

According to the hinge module 160 according to the first embodiment of the present invention, the main body 120 and the cover 140 may have a free-stop function as well as a tilting rotation function, where 'free stop' (free-stop) 'refers to a function that can freely stop at any position after rotation.

That is, after the cover 140 is tilted and rotated with respect to the main body 120, when the cover 140 is further rotated by applying a force in the rotation direction and the force is removed, the cover 140 is not applied until a force of a predetermined size or more is applied again. It will maintain the rotated state, the mounting of the mobile electronic device will be made using this.

(Second embodiment)

Figure 4 is a perspective view of a mobile electronic device case according to a second embodiment of the present invention, Figure 5 is an exploded perspective view showing a coupling relationship of the hinge module and the shaft receiving portion of the mobile electronic device case of Figure 4, Figure 6 4 is a perspective view illustrating an example in which the mobile electronic device case functions as a holder.

4 to 6, the mobile electronic device case 200 according to the second embodiment of the present invention includes a main body 220 in which the mobile electronic device M is accommodated, and a front surface of the mobile electronic device M. FIG. It includes a cover 240, wherein the main body 220 and the cover 240 is a cover 222, 242 of a flexible material, and the reinforcing plates 224, 244 interposed in the cover (222, 242) Each included is made, hinged by a hinge module 260 having a free stop function.

At this time, the cover 242 is provided only in the portion of the main body 220 and the cover 240 except for the hinge module 260, and accordingly, according to the second embodiment of the present invention, the hinge module 260 has an apparent cover ( 242 is exposed to the outside.

In more detail, the main body 220 and the cover 240 is a thin material that is maintained in the cover 222, 242 and the cover 222, 242 of a flexible material such as synthetic resin, cloth, leather, etc. to maintain the appearance Reinforced plates 224 and 244 made of metal or synthetic resin, respectively, and the hinge module 260 is coupled to one of the body 220 and the cover 240, the hinge module 260 on the other side. The bearing unit 230 may be provided to be coupled to the hinge.

That is, as shown in FIG. 5, for example, one side of the hinge module 260 is coupled to the reinforcement plate 244 of the cover 240, and the shaft receiving portion is attached to the reinforcement plate 224 of the main body 220. 230 is provided, the hinge module 260 is hinged to the bearing unit 230, the hinge coupling of the main body 220 and the cover 240 is enabled.

At this time, on the contrary, the bearing unit 230 is provided on the reinforcing plate 244 of the cover 240, and one side of the hinge module 260 may be coupled to the reinforcing plate 224 of the main body 220. Of course it can also have a tilting function of the embodiment. Hereinafter, the example illustrated in FIG. 5 will be described.

Hinge module 260 according to the second embodiment of the present invention, one side is a square piece bracket 270 is coupled to one corner of the reinforcing plate 244 of the cover 240, one end of the body 220 The reinforcing plate 224 is inserted into the shaft accommodating portion 230 provided at one side edge, and the other end includes a rotating shaft 290 hinged to the other side of the bracket 270.

At this time, the bracket 270 is a thin rectangular piece as a whole, at least one fastening hole 272 is coupled to one side of the reinforcing plate 244 of the cover 240 by a fastener such as bolts or rivets On the other side, a pair of bent pieces 274 having the ends bent in an arc shape to the inside and having a shaft hole 276 formed therein are spaced apart from each other at predetermined intervals.

On the other hand, the bracket 270 is, of course, may be coupled to the side of the reinforcing plate 244 of the cover 240 without a separate fastener by welding or fusion.

The rotating shaft 290 is a cylindrical shape in which a square piece extends at one end as a whole, and specifically, a cylindrical first shaft portion 292 inserted into the shaft hole 276 of the pair of bending pieces 274 is formed at one end thereof. At the other end, a second shaft portion 294 is formed having a flat surface on at least one side and inserted into the insertion hole 232 of the shaft accommodation portion 230.

At this time, the second shaft portion 294 is fitted to the shaft accommodating portion 230 so as to transmit the rotational force of the cover 240 to the first shaft portion 292, it is preferable that the flat surface is formed in a square piece on both sides. It is also possible, of course, that one side is semi-circular and the other is flat.

That is, the second shaft portion 294 is fitted to the insertion hole 232 of the shaft receiving portion 230 provided on one side of the reinforcing plate 224 of the main body 220, the first shaft portion 292 is the cover 240 One side is coupled to the shaft hole 276 formed in the bending piece 274 of the bracket 270 is coupled to, the insertion hole 232 of the receiving portion 230 is the cross-sectional shape of the second shaft portion 294 The shape corresponds to.

In addition, after fitting the first shaft portion 292 to the shaft hole 276, using a device such as a press to press the pair of bending pieces 274 to be in close contact with the outer peripheral surface of the first shaft portion 292. Preferably, in this case, by appropriately adjusting the friction force generated between the outer peripheral surface of the first shaft portion 292 and the inner surface of the bent piece 274, it is possible to set the size of the rotation force required for the rotation of the cover 240.

As the second shaft portion 294 rotates together with the main body 220 during the rotation of the cover 240, the first shaft portion 292 also rotates in the shaft hole 276. The outer circumferential surface of the first shaft portion 292 and the shaft hole are rotated. A friction force is generated when the inner circumferential surface of 276, that is, the inner surface of the bent piece 274 is in contact with the surface, and only when a predetermined rotational force greater than this friction force is applied, the axial hole 276 of the bent piece 274 is removed. The single shaft portion 292 is rotated.

When the rotational force is removed after the predetermined angle rotation of the first shaft portion 292, the lid 240 rotates with respect to the main body 220 by the friction force generated between the first shaft portion 292 and the inner circumferential surface of the shaft hole 276. As a result, the user can rotate the cover 240 at an appropriate angle to the rear of the main body 220 to support the main body 220, as shown in FIG. .

At this time, when the lid 240 is repeatedly rotated with respect to the main body 220 in accordance with repeated use, the first shaft portion 292 may be separated from the shaft hole 276 by a screw action.

In order to prevent this, the locking groove 296 is formed between the first shaft portion 292 and the second shaft portion 294 of the rotating shaft 290, and the locking piece 278 is disposed between the pair of bending pieces 274. When the first shaft portion 292 is moved in the longitudinal direction of the shaft hole 276, the edge of the locking piece 278 is caught by the locking groove 296, thereby preventing the detachment of the rotating shaft 290. desirable.

At this time, the locking groove 296 is formed in the circumferential direction along the outer circumferential surface of the rotating shaft 290 at a predetermined width and depth between the first shaft portion 292 and the second shaft portion 294 of the rotating shaft 290, The piece 278 extends outwardly between the pair of bending pieces 274 and the end is bent inward to be in close contact with the outer circumferential surface of the locking groove 296.

On the other hand, the bracket 270 and the rotating shaft 290 is preferably made of the same material as the reinforcing plate 244, may be formed of a metal member, it may be injection molded as a synthetic resin material.

(Third embodiment)

7 is a perspective view of a mobile electronic device case according to a third embodiment of the present invention, FIG. 8 is a perspective view of the hinge module of FIG. 7, and FIG. 9 is an exploded perspective view of the hinge module of FIG. 8.

7 to 9, the mobile electronic device case 300 according to the second embodiment of the present invention includes a main body 320 in which the mobile electronic device M is accommodated, and a front surface of the mobile electronic device M. FIG. It includes a cover 340, and a hinge module 360 for hinge coupling the main body 320 and the cover 340.

The main body 320 includes a cover 322 of a flexible material and a reinforcing plate 324 embedded in the cover 322, and the cover 340 is embedded in a cover 342 and a cover 342 of flexible material. And a reinforcing plate 344 being formed.

Hinge module 360 includes a first bracket 362, a second bracket 364, and a rotation unit 370. The first bracket 362 is coupled to the body 320, and the second bracket 364 is coupled to the cover 340. The rotation unit 370 pivotally rotates the second bracket 364 in a semi-automatic manner relative to the first bracket 362.

The first bracket 362 includes a first horizontal plate 362a horizontally coupled to the reinforcing plate 324 of the body 320 and a vertical plate 362b vertically coupled to the first horizontal plate 362a. do. A first hole 362b-1 in which the housing 378 to be described later is inserted is formed at one side of the lower end of the vertical plate 362b. The first hole 362b-1 is formed such that its length direction is directed toward the rotation center axis direction of the rotation unit 370.

The second bracket 364 includes a second horizontal plate 364a which is horizontally coupled to the reinforcing plate 344 of the cover 340, and coupling protrusions which are respectively coupled to both ends of one side of the second horizontal plate 364a ( 364b). One of the coupling protrusions 364b is formed with a second hole 364b-1 into which the second cam member 374 to be described later is inserted. The second hole 364b-1 is formed such that its longitudinal direction is in the longitudinal direction of the first hole 362b-1, that is, in the direction of the rotation center axis of the rotation unit 370.

The rotation unit 370 pivotally couples the vertical plate 362b of the first bracket 362 and the second horizontal plate 364a of the second bracket 364. The rotation unit 370 includes a first cam member 372, a second cam member 374, a shaft member 375, a spring 376, a snap ring 377, and a housing 378.

The first cam member 372 has a columnar first body 372-1 as shown in FIG. 10. A first engagement hole 372-2 is formed in the center of the first body 372-1 along the longitudinal direction thereof, and a curved first uneven portion 372- is formed on an upper surface of the first body 372-1. 4) is formed along the circumferential direction of the upper surface of the first body 372-1. First flat parts 372-3 are formed on the outer side surface of the first body 372-1 to be symmetrical about the first coupling hole 372-2.

As shown in FIG. 11, the second cam member 374 has a columnar second body 374-1. In the center of the second body 374-1, a second coupling hole 374-2 is formed along the longitudinal direction thereof, and a curved second uneven portion 374-is formed on an upper surface of the second body 374-1. 4) is formed along the circumferential direction of the upper surface of the second main body 374-1. The second uneven portion 374-4 is disposed on the shaft member 375 to be engaged with the first uneven portion 372-4, which will be described later. In addition, second flat parts 374-3 are formed on the outer side surface of the second body 374-1 so as to be symmetrical about the second coupling hole 374-2.

The second cam member 374 is inserted into the second hole 364b-1 formed in the engaging protrusion 364b of the second bracket 364. The shape of the second hole 364b-1 corresponds to the shape of the outer side surface of the second cam member 374. That is, flat surfaces corresponding to the second flat portions 374-3 of the second cam member 374 are also formed on the inner side surface of the second hole 364b-1. Therefore, relative rotation does not occur between the second hole 364b-1 and the second cam member 374.

The shaft member 375 is inserted into the second coupling hole 374-2 of the second cam member 374. After insertion of the shaft member 375, the cap 380 is coupled to the engaging projection 364b of the second bracket 364 so as to cover an end of the shaft member 375. The first cam member 372 is coupled to the shaft member 375. At this time, the first uneven portion 372-4 of the first cam member 372 is positioned to engage with the second uneven portion 374-4 of the second cam member 374.

The spring 376 surrounds the shaft member 375 and is disposed adjacent to the bottom surface of the second cam member 374, and the snap ring 377 is coupled to the end of the shaft member 375 to compress the spring 376. do. The spring 376 is compressed by the snap ring 377 and exerts an elastic restoring force in a direction in which the first and second cam members 372 and 374 are close to each other.

The housing 378 has an open cylindrical shape and the housing 378 is inserted into the first hole 362b-1 of the first bracket 362. In addition, a snap ring 377, a spring 376, and a first cam member 372 coupled to the shaft member 375 are accommodated in the housing 378. The cross-sectional shape of the housing 378 and the first hole 362b-1 corresponds to the shape of the outer side surface of the first cam member 372. That is, the flat surfaces corresponding to the first flat portions 372-3 of the first cam member 372 are also formed in the housing 378 and the first hole 362b-1. Accordingly, relative rotation does not occur between the first hole 362b-1 and the housing 378, and between the housing 378 and the first cam member 372.

Hereinafter, the operation of the rotating unit 370 having the above configuration will be described.

12A and 12B are views showing an operating state of the rotating unit.

12A and 12B, in a state where the first cam member 372 and the second cam member 374 are engaged with each other, the first bracket 362 and the second bracket 364 move relative to each other at a predetermined angle. In this case, the housing 378 and the first cam member 372 are rotated relative to the second cam member 374. At this time, while the first uneven portion 372-4 of the first cam member 372 climbs up the second uneven portion 374-4 of the second cam member 374, the first cam member 372 The spring 376 is moved in the compression direction, that is, the direction toward the snap ring 377. Thereafter, the vertex of the first uneven portion 372-4 of the first cam member 372 passes through the vertex of the second uneven portion 374-4 of the second cam member 374, and thus, the spring 376 of the spring 376. The first cam member 372 is moved in the direction toward the second cam member 374 by the restoring force, whereby a relative rotational movement between the first bracket 362 and the second bracket 364 additionally occurs. In this way, the first bracket 362 and the second bracket 364 are rotated in a semi-automatic manner.

In the same manner as described above, when the relative rotational movement between the first bracket 362 and the second bracket 364 is continuously performed, the end of the first bracket 362 is the cover 340 as shown in FIG. ) No further rotational movement occurs. Therefore, the user can rotate the cover 340 to the rear of the main body 320 at an appropriate angle so that the cover 340 supports the main body 320, thereby using the mobile electronic device case 300 as a holder.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100, 200, 300: Mobile Electronics Case
120, 220, 320: main body
140, 240, 340: cover
160, 260, 360: Hinge Module

Claims (9)

A main body accommodating mobile electronic devices;
A cover covering a front surface of the mobile electronic device; And
Including a hinge module hinged to the cover to the main body to be rotatable tilting,
The main body and the cover is a mobile electronic device case having a functional hinge, characterized in that it comprises a cover of a flexible material and a reinforcing plate interposed in the interior of the cover, respectively. The method according to claim 1,
And the hinge module has a free-stop function such that the main body or the cover rotates to stop at an arbitrary angle. The method according to claim 1,
The reinforcement plate of the main body and the reinforcement plate of the cover is wrapped in one cover, the hinge module is a mobile electronic device case having a functional hinge, characterized in that embedded in the inside of the cover. The method according to claim 1,
The main body and the cover is a mobile electronic device case having a functional hinge, characterized in that made in one piece. The method according to claim 1,
The hinge module,
One side is coupled to any one of the main body and the cover, the other side is a pair of brackets are formed to be spaced apart from each other; And
Mobile electronic device case having a functional hinge, characterized in that it comprises a rotary shaft, one end of which is inserted into the pair of bending pieces and the other end of which is inserted into the shaft receiving portion provided on either of the main body and the cover. The method according to claim 1,
The hinge module,
A first bracket coupled to the body;
A second bracket coupled to the cover; And
And a rotating unit pivoting the second bracket in a semi-automatic manner relative to the first bracket. The method according to claim 6,
The rotating unit is.
A first cam member installed on one of the first and second brackets and having a curved first uneven portion formed in a circumferential direction;
A second cam member installed on the other one of the first and second brackets, the second cam member having a curved second uneven portion engaged with the first uneven portion along the circumferential direction;
A shaft member inserted into the center holes of the first and second cam members; And
And a spring disposed to enclose the shaft member and exerting a force in a direction in which the first and second cam members are brought closer to each other. The method of claim 7, wherein
The rotating unit,
Further comprising a housing having an open cylindrical shape, for receiving the first cam member,
The housing is coupled to any one of the first and second brackets,
And the first cam member is received in the housing so as not to rotate relative to the housing. The method according to claim 6,
The first bracket includes a first horizontal plate horizontally coupled to the reinforcing plate of the body, and a vertical plate coupled vertically to the first horizontal plate,
The second bracket includes a second horizontal plate horizontally coupled to the reinforcement plate of the cover,
The rotating unit is a mobile electronic device case having a functional hinge, characterized in that for pivotally coupling the vertical plate and the second horizontal plate.

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