KR100642324B1 - Rotation assembly for portable telephone - Google Patents

Abstract

A rotary assembly for a portable terminal is provided to fix a portable terminal main body on the first rotary body and to fix an LCD(Liquid Crystal Display) on the second rotary body, thereby easily rotating the LCD body combined in the second rotary body at an angle of 90 degrees or 180 degrees according to combination relationship between the first and second depressed grooves formed in the first and second rotary bodies and combination relationship between locking grooves and locking projections. A rotary assembly(100) comprises the followings: the first rotary body(110); the second rotary body(120); a parabolic spring(130); and a bushing(140). In the center of the first rotary body(110), the first through-hole is formed. In the circumference of the through hole, plural first depressed grooves are radially formed at equal intervals. In the circumference of the first depressed groove, a locking groove is formed as being spaced at a predetermined angle around the first through-hole. In the second rotary body(120), the second through-hole is formed in the center and plural second depressed grooves are formed so as to be combined with or separated from each first depressed groove of the first rotary body(110). In the circumference of one selected from the second depressed grooves, a locking projection is formed. The second rotary body(120) is capable of rotating in a predetermined direction on the first rotary body(110) until being contacted with the locking groove.

Description

Rotation assembly for mobile phone

1 is a cross-sectional view showing a rotating assembly for a mobile phone according to the present invention.

Figure 2a is a plan view showing a first rotating body of the rotating assembly for a mobile phone of the present invention, Figure 2b is a cross-sectional view taken along the line 2b-2b of Figure 2a, Figure 2c is a cross-sectional view taken along the line 2c-2c of Figure 2a.

Figure 3a is a plan view showing a second rotating body of the rotating assembly for a mobile phone of the present invention, Figure 3b is a cross-sectional view taken line 3b-3b of Figure 3a, Figure 3c is a cross-sectional view taken a line 3c-3c of Fig. 3a.

Figure 4a is a plan view showing an example of a dish spring of the rotary assembly for a mobile phone of the present invention, Figure 4b is a side view thereof.

Fig. 5A is a plan view showing another example of the disc spring in the rotary assembly for mobile phone of the present invention, and Fig. 5B is a side view thereof.

Figure 6a is a plan view showing a bushing of the rotary assembly for a mobile phone of the present invention, Figure 6b is a cross-sectional view taken line 6b-6b of Figure 6a.

7 is a schematic view for explaining the assembly process of the rotary assembly for a mobile phone of the present invention.

8A and 8B are schematic views showing a state in which the mobile phone is rotated by approximately 90 ° by the rotary assembly for the mobile phone of the present invention.

9A and 9B are schematic views showing a state in which the mobile phone is rotated by approximately 90 ° and 180 ° by the rotary assembly for the mobile phone of the present invention.

<Description of Symbols for Main Parts of Drawings>

100; Rotating assembly according to the present invention

110; First rotating body 111; First through

112; First recess 113; Home

114; Coupling hole 120; 2nd rotating body

121; Second aperture 122; 2nd groove

123; Obstacle 124; Joining hole

130; Dish spring 131; Third through

132; Bends 133; First area

134; Second region 135; Third area

136; Protrusion 140; bushing

141; Fourth through hole 142; Upper extension

143; Cylinder 144; Bend

200; Cell phone body 300; Liquid crystal body

The present invention relates to a rotating assembly for a mobile phone, and more particularly to a rotating assembly for a mobile phone that can rotate the liquid crystal screen at various angles in the mobile phone.

In general, mobile phones are developing in the following order: bar type, flip type, folder type, and slide type. In addition, as broadcasting and games have recently been incorporated into mobile phones, so-called 'wide phones', which have been elongated in a uniquely horizontal direction, have been developed and released.

Until now, mobile phones have been a form of long vertical screen for easy handheld. However, this formula is breaking down as satellite and terrestrial mobile multimedia broadcasting (DMB) and various games are coming into mobile phones. In general, in order to receive a broadcast content produced at a ratio of 4 to 3 longer than a height on a mobile phone, the aspect ratio must now be changed to wide like a TV.

The concern of the mobile phone industry lies in this regard. The burden is to create a new phone that is easy to hold and fits in the landscape.

Samsung's satellite DMB mobile phone 'SCH-B100', which has just been released to the market, is the clearest example of this. The product is manufactured in a 'bar' type that is easy to hold and has a square aspect ratio. At first glance, nothing seems new. However, if you pull out another LCD screen hidden behind the main body, the shape of the product is completely different. The liquid crystal screen, which appears as a pocket knife spread, appears with a large 2.2-inch widescreen LCD screen and a 1-megapixel camera attached to it.

SK Teletech's satellite DMB phones are also thought to have been designed to maximize the landscape view. SK Teletech has not revealed the model name yet, but this product is designed to be used as a slide-type mobile phone in general, but when watching a broadcast, the top plate is pushed up and rotated 90 ° to watch the broadcast on a wide screen.

LG Electronics has not yet released a widescreen mobile phone. However, the satellite DMB phone 'SB-100', which is scheduled to be released soon, was manufactured in a folder type, and a square 2.3 LCD screen was attached to the test. It is not yet possible to mechanically turn the screen horizontally, but it is a transitional implementation to make the screen itself wide. LG Electronics is under internal review to experimentally integrate various types of devices into various DMB terminals.

Pantech & Curitel installed a wide LCD screen on the recently released necklace type MP3 phone 'PH-K2500V (for KTF)' before developing DMB phone. It is part of product design effort to make video more convenient.

Japan's NTT DoCoMo is promoting the DoCoMo Media Design Project, which aims to create a new type of mobile phone based on a combination of TV and mobile devices.

Sanyo is also contemplating designing a new concept that combines a home theater and a mobile phone, and Fujitsu is also developing various types of landscape phones.

On the other hand, as described above, there is a need for a member that rotates the liquid crystal screen by approximately 90 ° to enable horizontal viewing of the liquid crystal screen. For this purpose, a rotation assembly must be interposed to allow rotation between the liquid crystal display and the other member to which it is coupled.

Such a rotating assembly, referring to Republic of Korea Patent Publication No. 10-2005-0014095 (2005.02.07), a rotary hinge coupled to the rear of the cover, a first support coupled to the rotary hinge, and the first support It consists of a body coupled to. Here, the hinge part is made up of the fixing part and the rotating part again, and the transfer part and the fixing part are further coupled on the rotary hinge part.

Therefore, such a conventional rotary assembly has a number of components, which is expensive in manufacturing and has a complicated method of assembly. Moreover, since the conventional rotating assembly is not a method of rotating elastically, the rotation state of the liquid crystal display is easily twisted even by a small external force.

Meanwhile, referring to Korean Patent Publication No. 10-2003-0036520 (2003.05.09), a mobile phone body, a liquid crystal screen, a rotating shaft connecting the main body and the liquid crystal screen, and installed between the main body and the liquid crystal screen smoothly rotate by magnetic force. Disclosed is a rotating assembly made of a magnetic force member.

However, such a rotating assembly has a disadvantage in that the mechanical structure of the rotating shaft is very weak so that the mobile phone body and the liquid crystal screen can be separated even with a small force. Also, due to the structure between the stopper and the long hole that restricts the rotation, the rotational assembly is about 90 ° or more. There is a disadvantage that the LCD screen cannot be rotated. In addition, such a rotating assembly also has a disadvantage that the rotated state of the liquid crystal display is changed even with a small force.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned conventional problems, and an object of the present invention is to provide a rotating assembly for a mobile phone capable of rotating the liquid crystal screen of the mobile phone at various angles (90 ° and 180 °).

Another object of the present invention is to provide a rotating assembly for a mobile phone which, after the liquid crystal screen is rotated at a predetermined angle, strongly maintains the rotated position.

Still another object of the present invention is to provide a mobile phone rotating assembly capable of appropriately adjusting the elastic force of the plate spring, thereby rotating the liquid crystal screen of the mobile phone with a small force.

In order to achieve the above object, the rotating assembly for a mobile phone according to the present invention has a first through-hole formed at the center thereof, and a plurality of first grooves are formed radially at the same time and radially at the outer periphery of the first through-the-hole. The outer periphery of the groove is a first rotating body formed by a locking groove spaced apart by a predetermined angle around the first through hole, and a second through hole is formed in the center, and a plurality of coupling so as to be coupled to and separated from each first groove of the first rotating body A second recess of the second recess formed in the outer periphery of the selected one of the second recesses and a rotatable protrusion which is rotatable in a predetermined direction with respect to the first rotatable body until it contacts the engaging groove; A third through hole is formed in the center, and a plurality of protrusions are formed on the circumferential surface thereof, and at the same time the plurality of protrusions are slidably installed at the same time as the plurality of protrusions are slid to the second rotating body, and at the same time the fourth through hole is formed in the center , So that by the disc spring contacts the entire the second is pushed first into the whole, and includes a through-coupling the bushing to the first, second and third apertures.

Here, the locking groove may be formed to be spaced 90 ° or 180 ° with respect to the first through the center.

In addition, the first and second grooves of the first and second rotating bodies may have a predetermined depth in a quadrangular shape along the radial direction and have a predetermined depth in the triangular shape along the circumferential direction.

The dish spring may include a first region in contact with an upper end of the bushing, a plurality of second regions bent at an angle from the first region toward the second rotating body, and the second region from the second region. It may include a third region having a projection in contact with the whole.

In addition, a circular bent portion may be further formed in the first region of the disc spring to ensure rigidity of the disc spring.

In addition, an incision groove may be further formed between the first region and the second and third regions of the dish spring.

In addition, the third region may be formed of four to six.

The bushing may further include an upper extension plate which is in direct contact with the first region of the disc spring and presses the disc spring toward the second rotating body, a cylinder having a fourth through-hole extending a predetermined length downward from the extension plate, It may be bent in the outward direction from the bottom may include a bent portion to prevent the first and second rotating body and the plate spring from being separated from each other.

In addition, the bent portion may be formed smaller than the thickness of the cylinder.

As described above, the rotating assembly for a mobile phone according to the present invention can fix the mobile phone body to the first rotating body and the liquid crystal screen to the second rotating body, for example. Of course, the opposite is also possible. Then, according to the coupling relationship between the first and second recesses formed in the first and second rotors, and the coupling relationship between the locking grooves and the locking protrusions, the liquid crystal screen coupled to the second rotors may be 90 ° and / or 180 °, respectively. It can be easily rotated.

In addition, in the rotary assembly for a mobile phone according to the present invention, not only the second groove of the second rotating body is coupled to the first groove of the first rotating body, but the plate spring makes the second rotating body strong with the second rotating body. Because of the pressing state, the rotated state does not change easily after the first rotating body or the second rotating body is rotated by a predetermined angle. For example, after the liquid crystal screen is rotated by approximately 90 ° or 180 °, the rotational state of the liquid crystal screen is not easily changed by the weak external force to keep it in place.

In addition, in the present invention, a large area of the disc spring does not contact the second rotating body, but projections (approximately 4 to 6 are formed) formed in the third area of the disc spring contact the second rotating body. Therefore, the elastic force of the disc spring is weakened to some extent, so that the liquid crystal screen of the mobile phone can be easily rotated even with a small force.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

1 is a cross-sectional view showing a rotating assembly for a mobile phone according to the present invention.

As shown, the rotary assembly 100 for a mobile phone according to the present invention includes a first rotating body 110, a second rotating body 120 installed on the first rotating body 110, and the second rotating body ( The plate spring 130 installed on the 120 and the bushing 140 is coupled to approximately the center of the first rotating body 110, the second rotating body 120 and the plate spring 130 so that they are not separated from each other. It includes. Here, the upper expansion plate 142 and the bent portion 132 is formed at the upper portion of the bushing 140, the first rotating body 110, the second rotating body 120 and the plate spring 130 is It is not separated from each other.

Figure 2a is a plan view showing a first rotating body of the rotating assembly for a mobile phone of the present invention, Figure 2b is a cross-sectional view taken along the line 2b-2b of Figure 2a, Figure 2c is a cross-sectional view taken along the line 2c-2c of Figure 2a.

As shown in the drawing, the first rotating body 110 includes a first through hole 111, a plurality of first grooves 112, a plurality of locking grooves 113, and a plurality of first coupling holes 114.

The first through-hole 111 is formed in a circular shape substantially in the center of the first rotating body 110, the plurality of first grooves 112 are equally spaced at the outer periphery of the first through-hole 111 and at the same time radially It is formed. The first recess 112 is formed to have a predetermined depth in a square shape along the radial direction, and is formed to have a predetermined depth in a triangular shape along the circumferential direction. In addition, the first recess 112 may be formed by a drawing process using a conventional mold. In addition, although the state in which the four first grooves 112 are formed to form an angle of 90 ° to each other is shown in the drawing, the number of the first grooves 112 is not limited to the present invention. Subsequently, the locking groove 113 is formed at an outer circumference of the plurality of first recesses 112 and is spaced a predetermined angle around the first through hole 111. That is, as shown in FIG. 2A, the locking grooves 113 may be formed to be spaced 90 ° from each other around the first through hole 111, or 180 ° to be spaced apart from each other about the first through hole 111. Can be. Although the locking groove 113 on the left side of FIG. 2A is shown as two, only one of the two is formed. In other words, when the mobile phone body (or liquid crystal body) is to be rotated only by 90 °, the locking groove 113 is formed only in the upper center, and the mobile phone body (or liquid crystal body) is to be rotated by 180 ° as well as 90 °. In this case, the locking groove 113 is formed at the center of the left side. In the figure, reference numeral 114 is a first coupling hole 114 to which a mobile phone body or a liquid crystal body is coupled.

Figure 3a is a plan view showing a second rotating body of the rotating assembly for a mobile phone of the present invention, Figure 3b is a cross-sectional view taken line 3b-3b of Figure 3a, Figure 3c is a cross-sectional view taken a line 3c-3c of Fig. 3a. Reference will be made to FIG. 1 together to understand the coupling relationship with the remaining components.

First, the second rotating body 120 also includes a second through hole 121, a plurality of second grooves 122, and a locking protrusion 123.

The second through holes 121 are formed in a circular shape at substantially the center of the second rotating body 120, and the plurality of second grooves 122 are equally spaced at the outer periphery of the second through holes 121 and radially. It is formed. Here, the second through hole 121 is formed slightly larger than the diameter of the first through hole (111). Of course, the forming position of the second recess 122 is the same as the forming position of the first recess 112. In addition, the size of the second groove 122 is smaller than the size of the first groove 112 so that the second groove 122 can be easily coupled to and separated from the first groove 112. In addition, the second recess 122 is also formed to have a predetermined depth in a square shape along the radial direction, and is formed to have a predetermined depth in a triangular shape along the circumferential direction. Of course, the second recess 122 may also be formed by a drawing process by a mold. Subsequently, the locking protrusion 123 is formed to protrude a predetermined length in a downward direction in an outer direction of the selected one of the second recesses 122. The locking protrusion 123 may be implemented by, for example, forming a through hole having a predetermined diameter in the second rotating body 120, and engaging and fixing the through hole 123. In addition, such a locking projection 123 is to limit the rotation angle of the second rotating body 120 when it is rotated in a predetermined direction in a state in which the second rotating body 120 is coupled to the first rotating body 110. Play a role. For example, if the locking projection 123 of the second rotating body 120 is coupled to the locking groove 113 on the right side of the first rotating body 110 shown in FIG. After the second rotating body 120 rotates approximately 90 degrees (of course, the first rotating body 110 is fixed), the locking protrusion 123 is formed at the upper center of the first rotating body 110. In contact with the groove 113 is no longer rotated. In addition, when the locking groove 113 is formed at the left center of the first rotating body 110, after the second rotating body 120 rotates approximately 180 °, the locking protrusion 123 contacts the locking groove 113. It no longer rotates. In the figure, reference numeral 124 denotes a coupling hole to which a mobile phone body or a liquid crystal body is coupled.

Figure 4a is a plan view showing an example of a dish spring of the rotary assembly for a mobile phone of the present invention, Figure 4b is a side view thereof. Figure 5a is a plan view showing another example of a dish spring of the rotating assembly for a mobile phone of the present invention, Figure 5b is a side view of this will also be referred to Figure 1 to understand the coupling relationship with the remaining components.

First, the dish spring 130 has a third through hole 131, a bent portion 132, a first region 133, a second region 134, a third region 135, a protrusion 136, and a cutout groove ( 137).

The third through hole 131 is formed in a circular shape at substantially the center of the first region 133. The third through hole 131 has a diameter substantially the same as the second through hole 121 of the second rotating body 120. In addition, the bent portion 132 is drawn to the outer periphery of the third through hole 131 to a certain depth, to ensure a certain degree of rigidity of the dish spring 130. Here, the upper extension plate 142 of the bushing 140 is in close contact with the upper surface of the first region 133. The second region 134 is substantially parallel to its circumferential surface outside the first region 133 and bent at a predetermined angle toward the second rotating body 120. In addition, the third region 135 extends a predetermined length at an end of the second region 134 in a direction substantially parallel to the surface of the second rotating body 120. In addition, the third region 135 is further provided with a protrusion 136 protruding a predetermined length such that the third region 135 is in point contact with the surface of the second rotating body 120. In addition, an incision groove 137 having a predetermined gap is formed between the first region 133 and the second and third regions 134 and 135. Therefore, the protrusion 136 formed in the third region 135 is elastically in close contact with the surface of the second rotating body 120. Here, about 4 to 6 protrusions 136 may be formed. That is, referring to FIG. 4A, four protrusions 136 are formed, and referring to FIG. 5A, six protrusions 136 are formed. As the number of the protrusions 136 increases, the elasticity becomes stronger so that the second rotating body 120 is in close contact with the first rotating body 110.

Figure 6a is a plan view showing a bushing of the rotary assembly for a mobile phone of the present invention, Figure 6b is a cross-sectional view taken line 6b-6b of Figure 6a. Here again, reference will be made to FIG. 1 to understand the coupling relationship with the remaining components.

As shown, the bushing 140 includes a fourth through hole 141, an expansion plate 142, a cylinder 143, and a bent portion 144. The fourth through hole 141 is formed in the center of the expansion plate 142. In addition, the expansion plate 142 is in direct contact with the first region 133 of the dish spring 130 as described above serves to strongly press the dish spring 130 toward the second rotating body (120). In addition, the cylinder 143 extends a predetermined length downward from the expansion plate 142 and has the fourth through hole 141. The cylinder 143 penetrates through the first through hole 111, the second through hole 121, and the third through hole 131 of the first and second rotating bodies 110, 120, and third rotating bodies. do. The bent portion 144 is cocked at a predetermined angle outward from the lower end of the cylinder 143 so that the first rotating body 110, the second rotating body, and the disc spring 130 are not separated from each other. It plays a role. In addition, the lower region of the bent portion 144 is formed relatively thinner than the thickness of the remaining cylinder 143, so that the cocking operation can be easily performed at the lower end of the first rotating body (110). Here, the bent portion 144 is shown in FIG. 1, but is not shown in FIG. 6A. That is, the bushing 140 illustrated in FIG. 6A shows a state before the cocking process is performed.

7 is a schematic view for explaining the assembly process of the rotary assembly for a mobile phone of the present invention.

As shown, the first through hole 111, the second through hole 121, and the third through hole 131 of the first rotating body 110, the second rotating body 120, the disc spring 130, and the bushing 140. ) And the fourth through holes 141 are matched. At this time, the first groove 112 of the first rotating body 110 and the second groove 122 of the second rotating body 120 to match the position so as to be mutually coupled. That is, only when the first groove 112 and the second groove 122 is in a state of mutual coupling as described above, the lower end of the plate spring 130 to be described below the state protruding a predetermined length to the lower portion of the first rotating body 110 Because it becomes. In this state, the cylinder 143 of the disc spring 130 is connected to the first rotating body 110, the second rotating body 120, and the first through hole 111 and the second through hole 121 of the disc spring 130. ) And the third through hole 131. At this time, as described above, if the first groove 112 and the second groove 122 are coupled to each other, the overall thickness is the thinnest state, and thus, the lower end of the disc spring 130 is the first of the first rotating body 110. The lower portion of the through hole 111 is protruded a predetermined length. Subsequently, by caulking the lower end of the bushing 140 protruding a predetermined length below the first through hole 111 in an outward direction, the upper extension plate 142 and the bent portion 144 of the bushing 140. The first rotating body 110, the second rotating body 120 and the plate spring 130 to be integrated. That is, the first rotating body 110, the second rotating body 120, and the disc spring 130 are not separated by the bushing 140. At this time, since the lower end of the bushing 140 is formed relatively thinner than the cylinder 143, the cocking operation is performed more smoothly. In addition, the plurality of protrusions 136 formed on the dish spring 130 are elastically contacted with the surface of the second rotating body 120 by the cocking operation. In addition, the mobile phone body and the liquid crystal body may be coupled to each coupling hole through a bolt or the like before or after the assembly process of the rotating body.

8A and 8B are schematic views showing a state in which the mobile phone is rotated by approximately 90 ° by the rotary assembly for the mobile phone of the present invention.

As shown in FIG. 8A, the locking groove 113 formed in the first rotating body 110 is formed to be spaced about 90 ° about the first through hole 111. For example, the locking groove 113 may be formed at approximately 3 o'clock and 12 directions of the first rotating body 110, respectively. Therefore, when the second rotating body 120 is coupled to the first rotating body 110, the second rotating body 120 may be rotated by about 90 ° on the first rotating body 110. Of course, a locking protrusion 123 is formed in the second rotating body 120 so that the rotation angle may be limited by the locking groove 113 of the first rotating body 110.

Therefore, when the mobile phone body 200 or the liquid crystal body 300 is coupled to the rotation assembly 100 as shown in FIG. 8B, respectively, the mobile phone body 200 or the liquid crystal body 300 rotates about 90 ° with each other. You can do it. In addition, when the rotation end point of the mobile phone body 200 or the liquid crystal body 300 approaches, the first groove 112 and the second groove 122 formed in the first rotating body 110 and the second rotating body 120. The mutual combination of the two will naturally find the position. In addition, the state rotated in this way by the plate spring 130 will maintain the rotated state until a certain amount of external force is applied.

9A and 9B are schematic views illustrating a state in which the mobile phone is rotated by approximately 90 ° and 180 ° by the rotary assembly for the mobile phone of the present invention.

As shown in FIG. 9A, the locking groove 113 formed in the first rotating body 110 is formed to be spaced about 180 ° about the first through hole 111. For example, the locking groove 113 may be formed at approximately 3 o'clock and 9 o'clock of the first rotating body 110, respectively. Therefore, when the second rotating body 120 is coupled to the first rotating body 110, the second rotating body 120 may be rotated by about 180 ° on the first rotating body 110. Of course, a locking protrusion 123 is formed in the second rotating body 120 so that the rotation angle may be limited by the locking groove 113 of the first rotating body 110.

Therefore, as shown in FIG. 9B, when the mobile phone body 200 or the liquid crystal body 300 is coupled to the rotation assembly 100, the mobile phone body 200 or the liquid crystal body 300 rotates by about 180 °. You can do it. In addition, when the rotation end point of the mobile phone body 200 or the liquid crystal body 300 approaches, the first groove 112 and the second groove 122 formed in the first rotating body 110 and the second rotating body 120. The mutual combination of the two will naturally find the position. In addition, the state rotated in this way by the plate spring 130 will maintain the rotated state until a certain amount of external force is applied.

As described above, the rotating assembly for a mobile phone according to the present invention can fix the mobile phone body to the first rotating body and the liquid crystal body to the second rotating body, for example. Of course, the opposite is also possible. Then, the liquid crystal body coupled to the second rotating body at 90 ° and / or 180 °, respectively, according to the coupling relationship between the first and second recesses formed on the first and second rotating bodies, and the engaging relationship between the locking groove and the locking protrusion, respectively. It can be easily rotated.

In addition, in the rotary assembly for a mobile phone according to the present invention, not only the second groove of the second rotating body is coupled to the first groove of the first rotating body, but the plate spring makes the second rotating body strong with the second rotating body. Because of the pressing state, the rotated state does not change easily after the first rotating body or the second rotating body is rotated by a predetermined angle. For example, after the liquid crystal body is rotated by approximately 90 ° or 180 °, the rotational state of the liquid crystal body is not easily changed by the weak external force to keep it in place.

In addition, in the present invention, a large area of the disc spring does not contact the second rotating body, but projections (approximately 4 to 6 are formed) formed in the third area of the disc spring contact the second rotating body. Therefore, the elastic force of the disc spring is weakened to some extent, so that the liquid crystal body and the like of the mobile phone can be easily rotated even with a small force.

What has been described above is only one embodiment for carrying out the rotary assembly for a mobile phone according to the present invention, the present invention is not limited to the above-described embodiment, the subject matter of the present invention as claimed in the following claims Without departing from the technical spirit of the present invention to the extent that any person of ordinary skill in the art to which the present invention pertains various modifications can be made.

Claims (9)

A first through hole is formed in the center, and a plurality of first grooves are radially formed at equal intervals and radially on the outer periphery of the first hole. A grooved first rotating body; A second through-hole is formed in the center, a plurality of second grooves are formed to be coupled to and separated from each of the first grooves of the first rotating body, and any one of the outer periphery selected from the second grooves is formed with a locking projection A second rotatable body rotatable in a predetermined direction with respect to the first rotatable body until it contacts the locking groove; A third spring formed at a center thereof, and a plurality of protrusions formed at a circumferential surface thereof, and at the same time the plurality of protrusions slidably installed at the same time as the plurality of protrusions slidable to the second rotating body; And, And a bushing penetrated through the first, second and third holes so that the second rotating body is pressed against the first rotating body by the counter spring and contacted by the counter spring. Rotating assembly for a mobile phone. The rotating assembly for a mobile phone according to claim 1, wherein the locking grooves are spaced 90 ° or 180 ° with respect to the first through hole. The mobile phone according to claim 1, wherein the first and second grooves of the first and second rotating bodies have a predetermined depth in a square shape along a radial direction and have a predetermined depth in a triangular shape along a circumferential direction. Rotating assembly. The method of claim 1, wherein the dish spring is A first area in contact with the upper end of the bushing; A plurality of second regions bent at an angle from the first region toward the second rotating body; And, And a third region having a projection contacting the second rotating body from the second region. The rotating assembly of claim 4, wherein a circular bent portion is further formed in the first region of the disc spring to secure rigidity of the disc spring. The rotating assembly of claim 4, wherein an incision groove is further formed between the first region and the second and third regions of the dish spring. The rotating assembly for a mobile phone according to claim 4, wherein the third area is formed of four to six pieces. 5. The bushing of claim 4 wherein the bushing is An upper extension plate which is in direct contact with the first region of the disc spring and presses the disc spring toward a second rotating body; A cylinder having a fourth through hole extending a predetermined length downward from the extension plate; And, Rotating assembly for a mobile phone, characterized in that it comprises a bending portion bent outward from the lower end of the cylinder so that the first and second rotating bodies and the plate spring are not separated from each other. The rotating assembly of claim 8, wherein the bent portion is formed smaller than the thickness of the cylinder.

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