KR200274997Y1 - device for combining support keyboard of mobile station - Google Patents

Abstract

The present invention relates to a secondary keyboard coupling device of a mobile terminal having a secondary keyboard, and to simplify the structure to reduce the overall manufacturing cost by reducing the cost of forming parts, in particular, the first and second auxiliary keyboard When the second auxiliary keyboard is moved upward when it is in a combined state or moved downward when the body is opposite to the main body, the connection link for interlocking the first and second auxiliary keyboards is not in a state of moving upward and downward. The accuracy of the operation as well as the design of the signal processing area portion in the main body is not to be paid much attention.

To this end, the present invention is located inside the main body 1 in an open state in which the upper and lower parts are in communication with one side corner portion to which the first auxiliary keyboard 8 is to be coupled among the rear both side corner portions of the lower surface of the main body 1. The first communication tube 201 is formed so that the inside of the first communication tube 201 in a state in which the upper portion is open to one corner portion to be coupled to the main body 1 of the rear both sides of the upper surface of the first auxiliary keyboard (8). A first outer fitting pipe 202 is formed to be inserted into the neck portion, and the first outer fitting pipe is rotated when the first auxiliary keyboard 8 is folded while being fitted to the inner diameter portion of the first communication pipe 201. The main body 1 is coupled so as not to move downward, and in an open state in which upper and lower portions communicate with other corner portions of the rear two side corner portions of the lower surface of the main body 1 to which the second auxiliary keyboard 9 is to be coupled. A second communication tube 210 is formed to be positioned inside the rear of the upper surface of the second auxiliary keyboard 9. A second outer fitting pipe 211 is formed at the other corner of both corner parts to be coupled to the main body 1 to be fitted into the inner diameter of the second communication tube 210 in an open state thereof, and the second outer fitting pipe is formed. The secondary keyboard coupling device of the mobile terminal having a secondary keyboard coupled to be moved up and down in accordance with the rotation direction while rotating when the second auxiliary keyboard 9 is folded in the state of being fitted to the inner diameter portion of the second communication tube (210) to be.

Description

A secondary keyboard combining device of a mobile terminal having an auxiliary keyboard {device for combining support keyboard of mobile station}

The present invention includes a wireless cellular phone, a personal digital assistant, an IMT-2000 terminal, and the like. In particular, an auxiliary keyboard having a plurality of auxiliary input keys separate from a main body having a plurality of input keys is pivotally hinged. In a mobile terminal having a, it relates to an auxiliary keyboard coupling device of a mobile terminal having an auxiliary keyboard for pivotally hinged to the main keyboard.

Recently, due to the rapid development of mobile communication, the use of a mobile communication terminal has become common, and the above-described mobile communication terminal can be used regardless of regional, time, and space constraints. Development is also happening rapidly.

In addition, in the mobile terminal such as IMT-2000 called 3G mobile communication, functions are diversified to transmit and receive not only text information but also image information. However, since the terminal itself is becoming smaller, the terminal itself is becoming smaller. Arranging a plurality of input keys for entering letters or numbers is a great difficulty for the manufacturer of the mobile terminal.

Therefore, until now, mobile terminals need to input several numbers or letters as a limited number of input keys, and one input key is assigned with several alphabets or Korean consonants, vowels, numbers, etc. In the process of using, the desired alphabet, Korean consonants and vowels or numbers were selected according to the number of times of input keys (the number of presses).

In order to solve the above problems, the present applicant has already filed a patent application for the mobile terminal with the patent application No. 2001-20701 and the patent application No. 2000-49945 and the utility model registration application No. 2000-12457.

The patent application No. 2001-20701 has a folder in a state in which the front panel portion 1a and the back panel portion 1b are foldable by pivoting on the main body 1 formed by coinciding with each other, as shown in FIGS. (2) is hinged structure, the upper surface of the main body (1) is provided with a plurality of input keys (3) and a microphone (4) for inputting a transmission sound, the folder (2) of Outside the upper surface, the battery 5 for supplying power to the main body 1 is detachably coupled.

The folder 2 is provided with a speaker (receiver) 7 for outputting a reception sound together with a liquid crystal panel 6 for displaying various information and messages on the inner surface, which is a lower surface.

In addition, the first and second auxiliary keyboards 8 and 9 are hinged to the rear opposite corner portions of the lower surface of the back panel portion 1b constituting the main body 1 so as to be rotatable in the horizontal direction, respectively. The auxiliary keyboard is folded in a state where all parts are inserted into the main body 1, or the remaining parts except the hinge coupling part are extended out from the main body, and the upper and lower surfaces of the first and second auxiliary keyboards 8 and 9 Each of the plurality of auxiliary input keys 10 and 11 is provided so that the auxiliary input keys can input necessary characters or sequential characters together with the input keys 3 provided on the front panel portion 1a of the main body 1. To help.

When the mobile terminal having the auxiliary keyboard having such a structure is to be used, the first auxiliary keyboard 8 which is hinged to the lower surface of the back panel part 1b constituting the main body 1 as shown in FIGS. 2 and 3 and A plurality of auxiliary inputs provided on the first and second auxiliary keyboards 8 and 9 and the plurality of input keys 3 provided on the upper surface of the main body 1 after the second auxiliary keyboard 9 is opened. The mobile terminal can be selected by selecting a specific input key among the keys 10 and 11, and after use, rotates in the opposite direction as when the first and second auxiliary keyboards 8 and 9 are expanded. As described above, the first and second sub keyboards 8 and 9 may be folded into the lower part of the main body 1.

On the other hand, the transmission sound in the case of talking with the other party using the terminal having the auxiliary keyboard is input through the microphone 4 provided on the upper surface of the front panel portion 1a of the main body 1, while the reception sound is the bottom of the folder 2. The message is output through the speaker 7 provided on the inner surface of the phosphor, and the message when the message is exchanged with the counterpart using the mobile terminal is displayed through the liquid crystal panel 6 provided on the inner surface of the folder 2. The power supply required at this time is made through the battery (5) coupled to the folder (2) can be understood.

In the mobile terminal having an auxiliary keyboard as described above, the auxiliary keyboard is hinged to the lower surface of the main body 1 by a coupling device in a rotatable state. First, the conventional auxiliary keyboard coupling of the mobile terminal having the auxiliary keyboard The apparatus will be described in detail with reference to FIGS. 4 to 9.

One corner portion of the lower rear side corners of the main body 1 to which the first auxiliary keyboard 8 is to be coupled may be different from the signal processing area provided in the main body 1 in a state where the first auxiliary keyboard is opened. A first concave groove 21 is formed to be separated, and a first support tube 22 having a first support jaw 22a at an inner circumferential end of the first concave groove is formed in the first concave groove 21. The first fitting pipe 23 is formed to be spaced apart from the circumferential surface, and the upper surface of the first auxiliary keyboard 8 is opened to be inserted into the first recessed groove 21 formed in the main body 1. Is formed, the first engaging piece 24 having a first catching jaw (24a) on the outside of the end to be supported by the first supporting jaw (22a) formed in the first support pipe 22 inside the first fitting pipe (24) ) Is formed in plural.

In addition, the second corner of the rear side of the lower surface of the main body 1, the other corner portion to be coupled to the second auxiliary keyboard 9 is coupled to the signal processing area provided inside the main body 1 with the second auxiliary keyboard side open; The second concave groove 25 is formed to be separated, and the second concave groove 25 having a second support jaw 26a around the inner end of the second concave groove is formed in the second concave groove 25. The second fitting pipe 27 is formed to be spaced apart from the circumferential surface of the second auxiliary keyboard 9 so that the upper surface of the second auxiliary keyboard 9 is opened to be inserted into the second recess 25 formed in the main body 1. Is formed, and a second locking piece having a second locking jaw 28a on the outside of the end to be supported by the second supporting jaw 26a formed on the second supporting pipe 26 inside the second fitting pipe ( 28) is formed in plurality.

On the other hand, a circumferential surface of the second recessed groove 25 is formed with a straight portion 29a and a guide groove 29 in which the inclined portion 29b is smoothly continuous so as to be inclined upwardly from the straight portion. On the opposite parts of the outer circumferential surface of the fitting pipe 27, guide protrusions 30 are formed in the state of being fitted into the guide grooves 29 formed in the second recessed grooves 25 of the main body 1, so that the second auxiliary When the guide protrusion 30 is guided along the straight portion 29a of the guide groove 29 when the keyboard 9 is rotated, the second auxiliary keyboard 9 is combined with the second fitting pipe 27. 1) the second auxiliary keyboard 9 is fitted with the second when the guide protrusion 30 is guided along the inclined portion 29b of the guide groove 29 so as not to be moved upwards and downwards opposite to the main body. The tube 27 is moved upwardly toward the main body 1 and downwards opposite to the main body.

A plurality of cam grooves 31 are formed on the circumferential surface of the second recessed groove 25 formed in the main body 1 while maintaining the same inclination angle as that of the inclined portion 29b of the guide groove. On the outer circumferential surface of the second fitting tube 22 formed on the keyboard 9, a plurality of cam pieces 32 are formed while maintaining the same inclination angle as the cam groove 31, which is the second auxiliary keyboard 9. When moving upward to the main body 1 side in the process of rotating to expand the), the second auxiliary keyboard 9 moves upward toward the main body 1 as each cam piece 32 is fitted into the cam groove 31. It is to be stably supported on the main body even in the state.

In the above structure, a structure in which the first subsidiary keyboard 8 is hinged to be rotated in a horizontal direction in one of the two rear corners of the rear side of the lower surface of the main body 1 is hinged so that the first subsidiary keyboard is unfolded or folded. When rotated around the coupling part, the structure does not need to move upward to the main body 1 and downward to the opposite side of the main body, and the second auxiliary keyboard 9 at the other corners of the rear two side corners of the lower surface of the main body 1. Is pivotally hinged in a horizontal direction so that the second sub-keyboard needs to be moved upwardly and downwardly opposite to the main body 1 when the secondary auxiliary keyboard is rotated about the hinge engaging portion to be unfolded or folded. The second sub-keyboard 9 is in a folded state, and since the second sub-keyboard 9 is folded downward, the second sub-keyboard 9 is moved downward. Compared to the lower surface of the board 8, the second sub-keyboard 9 is stepped, but the second sub-key is moved as close as possible to the upper side toward the main body 1 in the extended state. When the lower surface of the keyboard 9 is compared with the lower surface of the first auxiliary keyboard 8, they are parallel to each other without a step.

Therefore, when the mobile terminal is used with the first and second auxiliary keyboards 8 and 9 extended, the first and second auxiliary keyboards 8 and 9 are formed on the same horizontal line. As the first auxiliary input key 10 provided on the upper surface of 8) and the second auxiliary input key 11 provided on the upper surface of the second auxiliary keyboard 9 maintain the same height difference, convenience of use is ensured. do.

In addition, even if the user unfolds the auxiliary keyboard of any one of the first and second auxiliary keyboards 8 and 9 as necessary to use the mobile terminal of the present invention, the first and second auxiliary keyboards are also unfolded together. The keyboards 8 and 9 are preferably interlocked with each other. For this purpose, the first fitting tube 23 formed on the first auxiliary keyboard 8 and the second fitting tube 27 formed on the second auxiliary keyboard 9 are provided. Should be connected as a connecting link 33. In order to connect one end of the connecting link to the first fitting pipe 23 formed on the first auxiliary keyboard 8, the first recessed groove 21 formed in the main body 1 is provided. ) And a communication hole 34 formed in a partition portion separating the signal processing region provided in the main body 1 in a horizontal direction within a predetermined angle range, and forming an outer periphery of the first fitting pipe 23. Fixed to be exposed to the signal processing area provided in the main body 1 through the communication hole 34 in the area It is understood that the hinge 35 is hinged to the end of the fixed link by forming a linkage 35, and the second end of the second link keyboard 9 is formed on the other end of the second link keyboard 9. In order to connect to the fitting pipe 27, one guide groove formed in the signal processing area portion of the main body 1 of each guide groove 29 formed in the second recessed groove 25 of the main body 1 is connected to the main body 1. A guide formed in the signal processing region portion of the main body 1 of the pair of guide protrusions 30 formed in the second fitting tube 27 of the second auxiliary keyboard 9 in communication with the signal processing region portion in the One guide protrusion fitted into the groove 29 extends to be exposed to the signal processing region provided in the main body 1 so that the other end of the link link 33 is hinged to the end of the guide protrusion 30 in a rotatable state. It should be understandable.

Hinge coupling of the link link 33 and the guide protrusion 30 in the above process, the second auxiliary keyboard (9) in the process of unfolding the upper body (1) toward the process of folding the second auxiliary keyboard (9) In the lower body (1) in consideration of moving to the second auxiliary keyboard (9) together with the second projection pipe (30) integrally formed in the second fitting pipe (27) should be made in a state capable of moving, In order to hinge the coupling link 33 to the guide protrusion 30 and the fixed link 35, the length of the hinge shaft should be secured enough to move up and down the second auxiliary keyboard 9, etc. Particular attention should be paid to the design of the signal processing area.

Referring to the operation of the conventional auxiliary keyboard coupling device of the mobile terminal having a secondary keyboard configured as described above are as follows.

When the first and second sub-keyboards 8 and 9 hinged to both rear corners of the rear surface of the back panel portion 1b of the main body 1 are folded, the first of the first and second sub-keyboards is folded. The auxiliary keyboard 8 is located directly below the main body 1, and the second auxiliary keyboard 9 is located directly below the first auxiliary keyboard 8, in this state of the main body 1 Since only the input key 3 provided on the upper surface is exposed to the outside, the user can use the mobile terminal only by selecting the input key.

However, the input keys 3 provided on the upper surface of the main body 1 as well as the first and second auxiliary keyboards 10 and 11 respectively provided on the upper surfaces of the first and second auxiliary keyboards 8 and 9 are combined. If you want to use the mobile terminal while selecting the first and second auxiliary keyboard (8) (9) folded before use to rotate around the hinge coupling portion as shown in Figures 2 to 3, the first and second auxiliary In the unfolded state of the keyboards 8 and 9, the auxiliary input keys 10 and 11 provided on the upper surface of the keyboard 8 and 9 are also exposed to the outside like the input keys 3 provided on the upper surface of the main body 1. The input key 3 and the auxiliary input keys 10 and 11 may be selected as a keyboard of a computer to use the mobile terminal in a more convenient state.

When using the mobile terminal in the above it is understood that the folder 2 should be in the expanded state regardless of whether the first and second auxiliary keyboards 8 and 9 are folded or expanded.

Then, the process of unfolding in the folded state of the first and second auxiliary keyboards 8 and 9 will be described in detail.

The first input key 3 provided in the main body 1 and the auxiliary input keys 10 and 11 provided in the first and second auxiliary keyboards 8 and 9, respectively, are used as a computer keyboard. When the second auxiliary keyboard 8 and 9 are unfolded, the first auxiliary keyboard is rotated in the clockwise direction on the basis of the hinge coupling point and the second auxiliary keyboard 9 is based on the hinge coupling point. In a counterclockwise rotation, at any moment (just after the superposition of the first and second auxiliary keyboards is completely released when viewed from the plane), the second and second keyboards 9 face upward from the main body 1 side. The lower surface of the first and second sub keyboards 8 and 9 becomes the same horizontal plane when the first and second sub keyboards 8 and 9 are unfolded.

In the above state, when the first and second sub-keyboards 8 and 9 are rotated in the horizontal direction and fully deployed, the second and second sub-keyboards 9 are completely moved upward toward the main body 1, and thus the first and second sub-keyboards are completed. (8) The lower surface of the (9) is the same horizontal plane, the first and second auxiliary keyboards (8) and (9) to expand the input key (3) and the first and second auxiliary keyboard provided in the main body (1) (8) (9) of the first and second auxiliary keyboards (8) and (9) when supporting the mobile terminal on the ground for use as a computer keyboard, respectively, If the lower part is to be in contact with the ground at the same time to ensure the support of the mobile terminal of the present invention as well as the auxiliary input keys 10 provided on the upper surface of the first and second auxiliary keyboard (8) (9), respectively ( 11) the input keys (3) and the auxiliary input keys (10, 11) with a finger in the process of using a mobile terminal to match the height of the computer keyboard This is to make it easier to use when choosing.

Meanwhile, as described above, in order to be unfolded in the folded state of the first and second sub-keyboards 8 and 9, the first sub-keyboard 8 must be rotated in the clockwise direction on the basis of the hinge coupling point. Of course, the second sub-keyboard 9 should be rotated counterclockwise on the basis of the hinge coupling point, and the first sub-keyboard 8 is rotated on the lower surface of the main body 1. A first recessed groove 21 is formed to be separated from the signal processing region provided in the main body 1 in a state where the lower side of the lower side is opened, and a first support is provided at an inner circumferential end of the first recessed groove. The first support tube 22 having the jaws 22a is formed to be spaced apart from the circumferential surface of the first recessed groove 21, and the main surface 1 of the first auxiliary keyboard 8 is formed on the main body 1. The first fitting pipe 23 is formed in the upper portion is opened to fit into the formed first recessed groove 21, the Since a plurality of first catching pieces 24 having a first catching jaw 24a is formed on the outside of the end portion so as to be caught and supported by the first supporting jaw 22a formed on the first supporting pipe 22 inside the fitting tube. The second auxiliary keyboard 9 may be rotated with a signal processing region provided inside the main body 1 in a state in which the lower part of the second auxiliary keyboard 9 is opened on the lower surface of the main body 1. The second concave groove 25 is formed to be separated, and the second concave groove 25 having the second support jaw 26a around the inner end of the second concave groove is formed in the second concave groove 25. It is formed in a state spaced apart from the upper surface of the second auxiliary keyboard 9, the second fitting tube of the lower opening state to be fitted into the second recessed groove 25 formed in the main body (1) ( 27 is formed, and has a second locking jaw 28a on the outer side of the second fitting pipe so as to be caught and supported by the second supporting jaw 26a formed on the second supporting pipe 26. Two clamping members (28) are possible because it is formed a plurality.

Then, the process of moving only the second auxiliary keyboard 9 only upward toward the main body 1 at any time when the first and second auxiliary keyboards 8 and 9 are unfolded will be described in detail. In the counterclockwise rotation of the drawing, the second fitting pipe 27 rotates about the central axis while the second fitting pipe 27 is fitted into the second recessed groove 25 formed in the main body 1. On the circumferential surface of the second recessed groove 25 is formed a straight portion 29a and a pair of guide grooves 29 in which the inclined portion 29b is smoothly and continuously connected to be inclined upward from the straight portion. The guide protrusions 30 are inserted into the guide grooves 29 formed in the second recessed grooves 25 of the main body 1 at portions opposite to each other on the outer circumferential surfaces of the second fitting pipe 27. Guide grooves 30 formed on the circumferential surface of the second recessed groove 25 are formed in the guide projection 30 formed in the second fitting pipe 27. In the process of being guided by the inclined portion 29b while being guided by the straight portion 29a, the guide projection 30 is guided to the inclined portion 29b of the guide groove 29 by the second fitting pipe 27. ) Is naturally moved upwardly toward the main body 1, so that the bottom surface of the second sub-keyboard 9 is moved to the upper side of the main body 1 toward the main body 1. It is located on the same horizontal line as the bottom surface of 8).

Meanwhile, as described above, the guide protrusion 30 formed in the second fitting pipe 27 is not moved upward in the main body 1 in the process of rotating in the horizontal direction so that the second auxiliary keyboard 9 is unfolded. Is when it is guided to the straight portion 29a of the guide groove 29 formed in the second recessed groove 25, the state moving upward toward the main body 1 is the guide projection formed in the second fitting pipe 27 When the 30 is guided to the inclined portion 29b of the guide groove 29 formed in the second recessed groove 25, the second recessed groove 25 until the second auxiliary keyboard 9 is rotated only. The cam auxiliary portion 32 formed on the outer circumferential surface of the second fitting pipe 27 is not fitted into the cam groove 31 formed between the guide grooves 29 of the circumferential surface of the second auxiliary keyboard 9. The cam pieces 32 are fitted into the cam grooves 31 from the moment when they move toward the main body 1 as they rotate, eventually unfolding the second sub-keyboard 9. In the state where deflection is completed, the cam piece 32 is in a state of being fully inserted into and supported by the cam groove 31.

That is, the cam groove 31 formed around the second recessed groove 25 of the main body 1 maintains the same angle of inclination as the inclined portion 29b of the guide groove 29, and the second fitting pipe 27 Since the cam piece 32 formed at the circumference maintains the same inclination angle as the cam groove 31, the cam piece 32 is not fitted into the cam groove 31 while the second auxiliary keyboard 9 is rotated. In the state where the second auxiliary keyboard 9 is rotated and moved toward the main body 1, the cam piece 32 is fitted into the cam groove 31, which is designed for the second recessed groove 25 of the main body 1. The position of the guide grooves 29 and the cam grooves 31 formed in the < RTI ID = 0.0 >) and < / RTI > the guide protrusions 30 and the cam pieces 32 formed around the second fitting pipe 27 of the second auxiliary keyboard 9, as appropriate. As long as it is possible, there is no big problem.

In addition, when the first and second auxiliary keyboards (8) and (9) are in a state of being unfolded, the use of the mobile terminal of the present invention is completed, or when the input key 3 provided in the main body 1 is selected and used for a simple purpose. The first and second auxiliary keyboards (8) and (9) may be rotated in a direction opposite to that of the unfolding, wherein the first and second auxiliary keyboards (8) and (9) are folded into the main body (1). Hiding in

On the other hand, when the user folds or unfolds the first and second sub-keyboards 8 and 9 in the process of using the mobile terminal, only one auxiliary keyboard is folded or unfolded without folding or unfolding the first and second sub-keyboards with respective forces. Even if the other one of the auxiliary keyboard is also folded or unfolded, for this purpose the first and second auxiliary keyboard (8) (9) has a structure that is interlocked.

Hereinafter, the interlocking process of the first and second auxiliary keyboards 8 and 9 will be described as follows.

8 is a state in which the first and second sub-keyboards 8 and 9 are folded, in which the user counterclockwise views the second sub-keyboard 9, which is the lowermost in the drawing. When rotated and unfolded, the second fitting pipe 27 formed on the upper surface of the second sub keyboard and inserted into the second recessed groove 25 formed on the lower surface of the main body 1 rotates counterclockwise in the drawing. In the counterclockwise rotation of the drawing of the second fitting tube, one of the guide protrusions on the signal processing region portion of the main body 1 of the pair of guide protrusions 30 formed on the second fitting tube 27 is provided. Of the pair of guide grooves 29 formed in the second recessed grooves 25 of the main body 1, the signal processing of the main body 1 through the guide grooves on the side of the signal processing region provided in the main body 1; In the state exposed to the area part, it moves like a dashed line without any interference, so that one end The connecting link 33, which is hinged to the end of the guide protrusion 30, also moves in position as shown by the dashed line.

In this way, when the connecting link 33 in the signal processing region in the main body 1 moves in accordance with the counterclockwise rotation of the second sub-keyboard 9, the main body is formed on the upper surface of the first sub-keyboard 8. The first fitting pipe 23 is formed to be fitted into the first recessed groove 21 formed in the lower surface of (1), and the first recessed groove 21 formed in the main body 1 and the first fitting tube are formed in the first fitting tube. A fixing link 35 is formed to be exposed to the signal processing region provided in the main body through the communication hole 34 of the partition wall separating the signal processing region provided in the main body 1, and at the end of the fixed link. As the other end of the connecting link 33 hinged to one end of the guide protrusion 30 is hinged, the fixed link 35 moves along a communication hole 34 as shown by a dashed-dotted line. The first fitting pipe 23 rotates clockwise in the drawing, and accordingly the first beam The keyboard 8 is also stretched so as to rotate in the clockwise direction on the drawing hinged parts of the heart will eventually spread by the first and second auxiliary keyboard (8) (9) is coupled.

In the above description, only the first and second auxiliary keyboards 8 and 9 are unfolded by interlocking, but the first and second sub-keyboards 8 and 9 are folded.

In the conventional art described above, the main body 1, the first auxiliary keyboard 8, and the second auxiliary keyboard 9 are made of a specific type (such as a strip of strip, a coil of a cylinder, etc.) to exchange signals with each other. Connected as cables, respectively, the passage of the cables is through a space whether or not the center of the hinge coupling of the first and second auxiliary keyboards (8) and (9).

However, the conventional auxiliary keyboard coupling device of the mobile terminal having such an auxiliary keyboard has a problem in that the overall manufacturing cost is increased due to the overly expensive structure due to the molding of the component is very complicated.

In particular, when the second auxiliary keyboard is moved upward as the first and second auxiliary keyboards are opened, the first and second auxiliary keyboards are moved upward when the second fitting pipes formed on the second auxiliary keyboard are moved upward. Since the link that acts as an interlock must also move up and down together, the interlocking operation of the first and second sub-keyboards by the link is not smooth, so that the reliability of the product is lowered, as well as the link of the link. Since the signal processing area in the main body should be designed in a state where the downward travel distance is sufficiently secured, this also has a problem of remaining as a factor of the increase in manufacturing cost.

The present invention has been made to solve the above-mentioned problems, and the structure is simplified to reduce the overall manufacturing cost by reducing the cost of forming parts, and in particular, the first and second auxiliary keyboard combined state When the second auxiliary keyboard is moved upward when the main body side or downwards to the opposite side of the body at the time of folding in the connection link for interlocking the first and second auxiliary keyboard is to be in a state that does not move up and down Its purpose is not to worry about the design of the signal processing area in the main body as well as accuracy.

1 is a perspective view of a mobile terminal having a secondary keyboard with a folder open and the secondary keyboard folded;

2 is a perspective view showing a folder in which a mobile terminal having an auxiliary keyboard is open and the auxiliary keyboard is opened;

Figure 3 is a plan view showing a mobile terminal having a secondary keyboard in a folder open and the secondary keyboard in an unfolded state

Figure 4 is an exploded perspective view showing a part of the conventional incision to show the configuration of the device

5 is an exploded view for explaining a process in which a cam piece, which is a component of the conventional device, is fitted into a cam when the second auxiliary keyboard coupled by the conventional device is folded;

Figure 6 is a longitudinal sectional view of the main portion of the mobile terminal coupled to the auxiliary keyboard by a conventional device, the auxiliary keyboard is folded

7 is a cross-sectional view taken along the line I-I of FIG. 6, in which the second auxiliary keyboard is unfolded and moved upwardly toward the main body;

8 is a cross-sectional view of main parts of a mobile terminal in which an auxiliary keyboard is coupled by a conventional apparatus;

9 is a perspective view showing the main configuration of the conventional device

Figure 10 is an exploded perspective view showing the components for coupling the first auxiliary keyboard of the present invention device

Figure 11 is an exploded perspective view showing the components for coupling the second auxiliary keyboard of the subject innovation device

12 is a longitudinal sectional view of a main portion of a mobile terminal in which the first and second auxiliary keyboards are coupled by the device of the present invention, and the auxiliary keyboard is folded.

FIG. 13 is a sectional view taken along the line II-II of FIG. 12, in which the second auxiliary keyboard is unfolded and moved upward toward the main body; FIG.

FIG. 14 is an exploded view for explaining a process in which a cam piece, which is a component of the device of the present invention, is fitted into a cam when a second auxiliary keyboard coupled by the device of the present invention is folded;

Figure 15 is a cross-sectional view of the main part of the mobile terminal coupled to the auxiliary keyboard by the device of the present invention

Explanation of symbols for the main parts of the drawings

1. Main Unit 8. First Auxiliary Keyboard

9. Secondary Keyboard 201. First Correspondence

202. First external fitting pipe 203. First locking jaw

204. First internal fitting 205. First round

206. First Horizontal Plate 207. First Through Hole

208. First stopper 209. First support member

210. Second communicating pipe 211. Second external fitting pipe

212. Second locking jaw 213. Second internal fitting tube

214. Second Jammer 215. Second Horizontal Plate

216. Second through hole 217. Second stopper

218. Second support member 219. Cam groove

220. Cam piece 221. Link

According to an embodiment of the present invention for achieving the above object, the first and second corners of the rear both side corners of the lower surface of the main body is formed to be opened in communication with the upper and lower portions in one corner portion to be coupled to the first located inside the main body A communication tube, a first outer fitting tube formed at an upper portion of one of the corners of the rear both sides of the upper surface of the first auxiliary keyboard to be coupled to the main body, and fitted into the inner diameter of the first communicating tube, and the first outer fitting A pair of first catching jaws formed spaced apart from each other on the upper end of the inner diameter of the tube, and the first inner fitting fitted to the inner diameter of the first outer fitting tube separately formed to be opened in communication with the upper and lower parts The upper end is formed on the first outer fitting tube when the tube and the first inner fitting tube are rotated at right angles while being inserted into the inner diameter of the first outer fitting tube. A pair of first catching pieces positioned on the same vertical line in contact with the catching jaw, and a horizontal state formed at an upper end of the first inner fitting pipe so that the first inner fitting pipe is fitted to the first outer fitting pipe. In the first horizontal plate supported on the upper end of the first communication tube and the first inner fitting plate formed with the first horizontal plate is formed by means for rotating together when the first outer fitting tube is rotated together with the first auxiliary keyboard The second communication pipe which is hinged to the main body in a rotatable state and is formed to be opened in a state where the upper and lower parts are in communication with each other corner portion to which the second auxiliary keyboard is coupled to the second auxiliary keyboard of the lower rear corners of the lower surface of the main body is located inside the main body. A second outer fitting pipe formed at an upper part of the second corner fitting to be coupled to the main body among the rear opposite corner parts of the upper surface of the second auxiliary keyboard and fitted into the inner diameter part of the second communication pipe, and of the second outer fitting pipe; Bore A pair of second catching jaws formed to be spaced apart from each other at an upper end, a second inner fitting pipe separately formed to be opened in a state where the upper and lower parts communicate with each other, and fitted into an inner diameter of the second outer fitting pipe; A second catching jaw formed at the second outer fitting pipe and formed at an outer diameter of the second inner fitting pipe so that the second inner fitting pipe is rotated at right angles while being fitted into the inner diameter of the second outer fitting pipe; A pair of second catching pieces positioned on the same vertical line in a state where they can be spaced apart by the thickness of the first sub-keyboard, and the second inner fitting pipe is formed in a horizontal state at an upper end of the second inner fitting pipe, so that the second inner fitting pipe is located outside the second outer fitting pipe. A second horizontal plate supported on an upper end of the second communication tube in a state of being fitted into the fitting tube, and means for causing the second inner fitting tube having the second horizontal plate to rotate together when the second outer fitting tube is rotated; Along the inner diameter of the second communication tube A plurality of cam grooves formed to be inclined upwardly from a lower portion, and formed to be inclined upwardly from a lower portion to an upper portion along an outer diameter portion of the second outer fitting pipe to rotate to the respective cam grooves when the second outer fitting pipe is rotated. The second auxiliary keyboard can be rotated to the main body by being composed of a plurality of cams which allow the second external fitting pipe to have a moving force upward while being inserted or the second external fitting pipe having a moving force downward while exiting from each cam groove. An auxiliary keyboard coupling device of a mobile terminal hinged to a state capable of moving up and down in a rotation process is provided.

Hereinafter, with reference to the accompanying Figures 10 to 15 showing the present invention as an embodiment in more detail as follows.

Attached Figure 10 is an exploded perspective view showing the components for coupling the first auxiliary keyboard of the device, Figure 11 is an exploded perspective view showing the components for coupling the second auxiliary keyboard of the device, the present invention, Figure 12 Is a main longitudinal sectional view of a mobile terminal hingedly coupled to the first and second auxiliary keyboards by the present invention device, FIG. 13 is a sectional view of the main part II-II of FIG. 12, and FIG. When the auxiliary keyboard is folded is a developed view for explaining the process of fitting the cam piece as a component of the device of the present invention, Figure 15 is a cross-sectional view of the main part of the mobile terminal coupled to the auxiliary keyboard by the device of the present invention, According to an embodiment of the present invention, one side of the rear side corners of the bottom surface of the main body 1 is coupled to the first corner keyboard 8 to which the first auxiliary keyboard 8 is coupled. Communicator A first outer fitting pipe 202 having an upper portion opened to be inserted into an inner diameter portion of the first communication tube 201 formed in the main body 1 is formed on the upper surface of the first auxiliary keyboard 8. Is formed, a pair of first catching jaw 203 is formed on the upper end of the inner diameter portion of the first outer fitting tube to be spaced apart in the circumferential direction in the state facing each other, the inside of the first outer fitting tube 202 The neck portion is fitted with a first inner fitting tube 204 opened in communication with the upper and lower portions, and the first inner fitting tube 204 is fitted into the outer diameter portion of the first inner fitting tube 202. A pair of first pairs such that an upper end thereof is positioned on the same vertical line in a state in which the upper end thereof is always in contact with the first catching jaw 203 formed in the first outer fitting tube 202 when it is rotated at right angles in an inner diameter portion of A locking piece 205 is formed, and a first inner fitting pipe is fitted to the first outer fitting pipe 202 at an upper end of the first inner fitting pipe 204. The first horizontal plate 206 is formed in a horizontal state so as to be supported by the upper end of the first communication tube 201 in a state, and the first locking piece 205 formed in the first inner fitting tube 204 in the first horizontal plate. A pair of first through holes 207 are opened to communicate with each other in an up and down state while being positioned on the same vertical line as a portion between them, and a first horizontal plate 206 is formed at an upper end of the first inner fitting pipe 204. Formed between the pair of first catching jaws 203 formed in the inner diameter portion of the first outer fitting tube 202 and the outer diameter portion of the first inner fitting tube 204 through the first through holes 207 formed in The first support member 209 integrally having a pair of first stoppers 208 is supported so as to be continuously vertically inserted into a portion between the pair of first catching pieces 205.

In addition, a second communication tube opened in a state where the upper and lower portions are communicated with each other corner portion of the rear side both corner portions of the lower surface of the main body 1 to which the second auxiliary keyboard 9 is to be coupled ( 210 is formed, and the second outer fitting pipe 211 having an upper portion opened to be fitted into the inner diameter portion of the second communication tube 210 formed on the main body 1 on the upper surface of the second auxiliary keyboard 8. And a pair of second catching jaws 212 are formed on the upper end of the inner diameter portion of the second outer fitting tube so as to be spaced apart from each other, and the upper and lower portions of the inner outer portion of the second outer fitting tube 211. The second inner fitting tube 213 opened in communication with each other is fitted, and the second inner fitting tube 213 is connected to the inner diameter of the second outer fitting tube 211 at an outer diameter of the second inner fitting tube. When rotated at right angles in the fitted state, the upper end of the second catching jaw 212 and the first auxiliary keyboard 8 formed on the second outer fitting pipe 211 A pair of second catching pieces 214 are formed to be positioned on the same vertical line in a state where they can be spaced apart from each other, and a second inner fitting pipe is formed at an upper end of the second inner fitting pipe 213. The second horizontal plate 215 is formed in a horizontal state so as to be supported by the upper end of the second communication tube 210 in the state fitted in the (211), the second horizontal plate formed in the second inner fitting pipe 213 A pair of second through holes 216 opened in a state of being communicated up and down in a state of being positioned on the same vertical line as the portion between the engaging pieces 214 is formed, and is formed at an upper end of the second inner fitting pipe 213. A portion between the pair of second catching jaws 212 formed in the inner diameter portion of the second outer fitting pipe 211 and the second inner fitting pipe 213 through each of the second through holes 216 formed in the horizontal plate 215. A second support member integrally having a pair of second stoppers 217 to be vertically fitted into a portion between the pair of second catching pieces 214 formed in the outer diameter portion of the 218 is supported.

In the inner diameter portion of the second communication tube 210 formed in the main body 1, a plurality of cam grooves 219 are formed to be inclined upwardly from the bottom to the upper portion along the inner diameter portion, and the outer diameter portion of the second outer fitting tube 211 is formed. A plurality of cam pieces 220 are formed to be inclined upwardly from bottom to top along the outer diameter portion, which is rotated when the second outer fitting pipe 211 is rotated in the process of rotating the second auxiliary keyboard 9. As the cam pieces 220 are fitted into the cam grooves 219, respectively, the second auxiliary keyboard 9 moves upward along the main body 1 together with the second outer fitting pipe 211.

In the above structure, a structure in which the first subsidiary keyboard 8 is hinged to be rotated in a horizontal direction in one of the two rear corners of the rear side of the lower surface of the main body 1 is hinged so that the first subsidiary keyboard is unfolded or folded. When rotated around the coupling part, the structure does not need to move upward to the main body 1 and downward to the opposite side of the main body, and the second auxiliary keyboard 9 at the other corners of the rear two side corners of the lower surface of the main body 1. Is pivotally hinged in a horizontal direction so that the second sub-keyboard needs to be moved upwardly and downwardly opposite to the main body 1 when the secondary auxiliary keyboard is rotated about the hinge engaging portion to be unfolded or folded. Structure.

On the other hand, even if the user unfolds the auxiliary keyboard of any one of the first and second auxiliary keyboards (8) and (9) as necessary to use the mobile terminal equipped with the device of the present invention, the second auxiliary keyboard is also extended together. First and second keyboards (8) and (9) are preferably interlocked with each other, and for this purpose, the first inner fitting pipe is formed in a horizontal state on the upper end of the first inner fitting pipe 204 so that the first inner fitting pipe ( 202 is formed in a horizontal state on the upper end of the first horizontal plate 206 and the second inner fitting tube 213 supported on the upper end of the first communication tube 201, so that the second inner fitting tube is second The second horizontal plate 215 supported on the upper end of the second communication tube 210 in the state fitted to the outer fitting pipe 211 should be connected as a connection link 221.

Referring to the operation of the present invention auxiliary keyboard coupling device of a mobile terminal having a secondary keyboard configured as described above are as follows.

The first and second sub keyboards 8 and 9 are provided on the input keys 3 and the first and second sub keyboards 8 and 9 provided on the main body 1, respectively, when they are folded on the main body 1. When the first and second auxiliary keyboards 8 and 9 are extended to simultaneously use the auxiliary auxiliary input keys 10 and 11 as a computer keyboard, the first auxiliary keyboard is shown in the drawing on the basis of the hinge coupling point. In addition to rotating in a clockwise direction, the second sub-keyboard 9 rotates counterclockwise on the drawing based on the hinge coupling point. At this moment, when the first sub-keyboard and the second sub-keyboard overlap each other, The second sub-keyboard 9 is moved upward by the thickness of the first sub-keyboard 8 from the upper side toward the main body 1, so that the first and second sub-keyboards 8 and 9 are unfolded. In this completed state, the lower surfaces of the first and second auxiliary keyboards 8 and 9 become the same horizontal plane.

In the above state, the first and second sub-keyboards 8 and 9 are rotated in the horizontal direction to fully extend, and the second and second sub-keyboards 9 are completely moved upwards toward the main body 1, thereby completing the first and second sub-keyboards. (8) The lower surface of the (9) is the same horizontal plane, the first and second auxiliary keyboards (8) and (9) to expand the input key (3) and the first and second auxiliary keyboard provided in the main body (1) (8) (9) of the first and second auxiliary keyboards (8) and (9) when supporting the mobile terminal on the ground for use as a computer keyboard, respectively, In order to ensure the stability of the support of the mobile terminal having the device of the present invention so that all parts are in contact with the ground at the same time, as well as the auxiliary input keys provided on the upper surfaces of the first and second auxiliary keyboards 8 and 9, respectively. 10) (11) to match the height of the input terminal (3) and the auxiliary input key (10) (11) with a finger in the process of using a mobile terminal The purpose is to make it easier to use when choosing a keyboard.

Meanwhile, as described above, in order to be unfolded in the folded state of the first and second sub-keyboards 8 and 9, the first sub-keyboard 8 must be rotated clockwise in the drawing on the basis of the hinge coupler. The second sub-keyboard 9 should be rotated counterclockwise in the drawing on the basis of the hinge coupler. The rotation of the first sub-keyboard 8 is the first sub-keyboard 8 of the two rear corners of the rear surface of the main body 1. The first communication tube 201 is formed in a state in which the upper and lower portions are communicated with each other, and the upper surface of the first auxiliary keyboard 8 is formed at one corner portion to be coupled thereto. The first outer fitting pipe 202 is formed in the upper portion of the open state to be fitted into the inner diameter of the first communication tube 201 formed in the main body 1, the upper end of the inner diameter of the first outer fitting pipe 20 A pair of first catching jaws 203 are formed to be spaced apart in the opposite state The first inner fitting tube 204 is inserted into the inner diameter portion of the first outer fitting tube 202 and the upper and lower portions communicate with each other, and the first inner fitting portion is inserted into the outer diameter portion of the first inner fitting tube. When the tube 204 is rotated at right angles while being inserted into the inner diameter of the first outer fitting tube 202, the upper end thereof comes into contact with the first catching jaw 203 formed in the first outer fitting tube 202. A pair of first catching pieces 205 are formed to be positioned on the same vertical line at the upper end of the first inner fitting pipe 204, and a first inner fitting pipe is fitted to the first outer fitting pipe 202. The first horizontal plate 206 is formed in a horizontal state so as to be supported by the upper end of the first communication tube 201, the first locking plate 205 formed in the first inner fitting pipe 204 in the first horizontal plate A pair of first through-holes 207 are formed which are open in up and down communication in a state where they are positioned on the same vertical line as the portion between the first and second portions. The upper portion of the worm pipe 204 and the portion between the pair of first catching jaw 203 formed in the inner diameter portion of the first outer fitting pipe 202 through each of the first through holes 207 formed in the first horizontal plate 206 and The first support member 209 integrally having a pair of first stoppers 208 to be vertically fitted into a portion between the pair of first catching pieces 205 formed in the outer diameter portion of the first inner fitting tube 204. Is supported, and the rotation of the second sub-keyboard 9 is located inside the main body 1 at the other corners at which the second sub-keyboard 9 is to be coupled, among the two rear corners on the rear side of the main body 1. In the opened state, the second communication tube 210 is opened to communicate with the upper and lower portions, and the inner diameter portion of the second communication tube 210 formed in the main body 1 on the upper surface of the second auxiliary keyboard 8. A second outer fitting tube 211 is formed in an open state so that the upper part is opened so that the upper end of the inner diameter portion of the second outer fitting tube faces each other. A pair of second catching jaws 212 are formed to be spaced apart from each other, and the second inner fitting pipe 213 opened in a state where upper and lower portions communicate with each other in the inner diameter portion of the second outer fitting pipe 211. The second inner fitting tube 213 is inserted into the outer diameter portion of the second inner fitting tube when the second inner fitting tube 211 is rotated at a right angle with the inner diameter portion of the second outer fitting tube 211 being fitted to the second outer fitting. A pair of second catching pieces 214 are formed to be positioned on the same vertical line in a state spaced apart by the thickness of the second catching jaw 212 and the first auxiliary keyboard 8 formed in the pipe 211, and the second At the upper end of the inner fitting tube 213, the second horizontal plate 215 is supported in a horizontal state so that the second inner fitting tube is supported by the upper end of the second communication tube 210 while being fitted to the second outer fitting tube 211. The second horizontal plate is formed on the same vertical line as the portion between the second catching pieces 214 formed in the second inner fitting pipe 213. A pair of second through holes 216 opened up and down in communication with each other are formed, and each second through hole 216 formed in the second horizontal plate 215 is formed at an upper end of the second inner fitting pipe 213. The pair of second catching pieces 214 formed between the pair of second catching jaws 212 formed in the inner diameter portion of the second outer fitting pipe 211 and the outer diameter portion of the second inner fitting pipe 213 through Since the second supporting member 218 having a pair of second stoppers 217 is integrally supported so as to be vertically inserted vertically between the parts, it is possible.

In the above state, when the first auxiliary keyboard 8 is hinged to the main body 1 in a rotatable manner, the pair of first catching jaws 203 formed on the upper end of the inner diameter portion of the first outer fitting pipe 202 may include the first inner portion. The pair of first catching pieces 205 formed on the outer diameter portion of the fitting tube 204 is hung in an unmovable state, and the first inner fitting tube 204 is integrally formed with the first horizontal plate 206. As a result of being supported by the first communication tube 201 formed in the main body 1, the first subsidiary keyboard 8 is not separated from the main body 1, as well as the second subsidiary keyboard 9. A pair of second locking jaws 212 formed at the upper end of the inner diameter portion of the second outer fitting tube 211 in the outer diameter portion of the second inner fitting tube 213 in the hinged rotatable manner Each of the two fastening pieces 214 is hung in a state capable of moving upward, and the second inner fitting pipe 213 is integrally formed by the second horizontal plate 215. The second auxiliary keyboard (9) in accordance with that turned beneath the second communicating tube 210 is formed in the main body 1 are not separated and the body (1).

Then, the process of moving only the second auxiliary keyboard 9 only upward toward the main body 1 at any moment when the first and second auxiliary keyboards 8 and 9 are unfolded will be described in detail. In the counterclockwise rotation of the drawing, the second outer fitting pipe 211 formed in the second auxiliary keyboard 9 is inserted into the inner diameter portion of the second communication tube 210 formed in the main body 1. The second communication tube rotates about the central axis, wherein the second inner fitting tube 213 fitted into the inner diameter of the second outer fitting tube 211 and the second water formed on the upper end of the second inner fitting tube are formed. The second support member 218 in which the second stopper 217 integrally formed through the flat plate 215 and the pair of second through holes 216 formed in the second horizontal plate are fitted in a vertical state also rotates together.

On the other hand, the second auxiliary keyboard 9 is not unfolded while the second external fitting pipe 211 formed in the second auxiliary keyboard 9 is fitted into the inner diameter portion of the second communication tube 210 formed in the main body 1. In this case (when folded), the plurality of cam pieces 220 formed on the outer diameter portion of the second outer fitting pipe 211 are each formed by the plurality of cam grooves 219 formed on the inner diameter portion of the second communication tube 210. When the second outer fitting pipe 211 rotates counterclockwise in the drawing by unfolding of the second auxiliary keyboard 9 in this state, the moment of rotation (when viewed from the plane) Immediately after the overlap between the first and second auxiliary keyboards is completely released), each cam piece 220 formed in the second outer fitting pipe 211 is fitted into each cam groove 219 formed in the second communication pipe 210. Since the cam piece 220 and the cam groove 219 are respectively from the bottom to the top along the circumference Considering that the cam piece 220 is guided to the cam groove 219 as the cam piece 220 is guided to the second outer fitting pipe 212, a moving force is applied upward toward the main body 1, so that each cam piece 220 is each cam groove. In the state completely inserted into each of the 219, the second auxiliary keyboard 9 is moved to the upper side toward the main body 1 and is fully extended, and the second auxiliary keyboard 9 is upward to the main body 1 side. In the state where the movement is completed, the first auxiliary keyboard 1 and its bottom face are in parallel while forming the same horizontal plane.

When the second external fitting pipe 211 rotates in accordance with the spreading of the second auxiliary keyboard 9 in the above-described operation, as described above, the second internal fitting pipe 213 and the second horizontal plate 215 and the first When the second support member 218 rotates together and the second outer fitting pipe 211 moves upward while the second outer fitting pipe 211 rotates, the second inner fitting pipe 213 and the second horizontal plate 215 are moved. And the second support member 218 does not move upward together, the second outer fitting pipe 211 is moved upward, the second outer fitting pipe is moved downward with the second auxiliary keyboard (9). The second catching jaw when the second catching jaw 212 formed in the second outer fitting pipe 211 is caught by the second catching piece 214 formed in the second inner fitting pipe 213 while being moved. Since the space between the 212 and the second horizontal plate 215 formed in the second inner fitting pipe 213 has a space equal to the thickness of the first sub keyboard 8, 2 The inner fitting pipe 213, the second horizontal plate 215 and the second support member 218 did not move upward together, the upper end of the second horizontal plate 215 formed in the second inner fitting pipe 213 Since it is close to the inner side of the upper surface of the front panel part 1a which comprises this main body 1, it is possible.

Since the second outer fitting pipe 211 moving upward as the main body 1 is guided by the second stopper 217 of the second supporting member 218 in the moving process, the upward movement becomes stable.

In addition, when using the mobile terminal with the first and second auxiliary keyboards (8) and (9) unfolded or when the use is completed, or if you want to use only the input key (3) provided in the main body (1) for simple use The first and second auxiliary keyboards (8) and (9) may be rotated in a direction opposite to that of the unfolding, wherein the first and second auxiliary keyboards (8) and (9) are folded into the main body (1). Hiding in

On the other hand, when the user folds or unfolds the first and second sub-keyboards 8 and 9 in the process of using the mobile terminal equipped with the device of the present invention, any one of the first and second sub-keyboards is not folded or unfolded with each force. Even if only the auxiliary keyboard is folded or unfolded, the other auxiliary keyboard is also folded or unfolded. For this purpose, the first and second auxiliary keyboards 8 and 9 are interlocked.

Hereinafter, the interlocking process of the first and second auxiliary keyboards 8 and 9 will be described as follows.

The state shown by the solid line in FIG. 15 is a state in which the first and second sub-keyboards 8 and 9 are folded, in which the user counterclockwise views the second sub-keyboard 9, which is the lowermost. When rotated in a direction to be unfolded, the second outer fitting pipe 211 formed in the second auxiliary keyboard and fitted into the inner diameter portion of the second communication tube 210 formed in the main body 1 rotates counterclockwise, and When the counterclockwise rotation of the second outer fitting tube is rotated, the second inner fitting tube 213, the second horizontal plate 215, and the second supporting member 218 are also counterclockwise in the drawing as described above. Since the first auxiliary keyboard 8 is also unfolded by the horizontal movement of the connection link 33 like the one-dot chain line, the second inner fitting pipe 213 and the second horizontal plate 215 and the second Since the support member 218 is not made axial movement in any case in the rotation process, Positioning of the connection link 33 is possible only in a horizontal state.

In the interlocking process of the first and second sub keyboards 8 and 9, only the first and second sub keyboards are unfolded, but it is obvious that the first and second sub keyboards 8 and 9 are folded.

In the present invention described above, the main body 1, the first auxiliary keyboard 8, and the second auxiliary keyboard 9 are made of a specific type (such as a strip of strip, a coil of cylindrical shape, etc.) to transmit and receive a necessary signal to each other. The cable passing holes 209a and 218a are respectively formed at the center of the first support member 209 and the center of the second support member 218 for the passage of the cable.

Therefore, the present invention auxiliary keyboard coupling device of a mobile terminal having an auxiliary keyboard is structurally simple to reduce the cost of forming parts, thereby reducing the overall manufacturing cost.

Particularly, in the process of moving the second auxiliary keyboard up and down as the first and second auxiliary keyboards are expanded or folded again, the second auxiliary keyboard and the first auxiliary keyboard are linked to each other. Since the link does not move up and down, the interlocking operation of the first and second sub keyboards is performed smoothly, so that the reliability of the product is secured, as well as the up and down moving distance of the connecting link is sufficiently secured. Since there is no need to design the signal processing region in the main body in this state, this also has the effect of reducing the manufacturing cost.

Claims (4)

A first communication tube positioned inside the main body to be opened in a state where upper and lower portions communicate with one side corner portion to which the first auxiliary keyboard is coupled among the rear two corners of the lower surface of the main body, and both rear sides of the upper surface of the first auxiliary keyboard; The first outer fitting tube is formed in an open state at one corner portion to be coupled to the main body of the corner portion and is inserted into the inner diameter portion of the first communication tube, and spaced apart from each other in a state opposite to the upper end of the inner diameter portion of the first outer fitting tube. A pair of first catching jaws formed, a first inner fitting tube separately formed to be opened in communication with the upper and lower parts, and fitted into an inner diameter portion of the first outer fitting tube, and an outer diameter portion of the first inner fitting tube When the first inner fitting tube is rotated at right angles while being inserted into the inner diameter portion of the first outer fitting tube, the upper end is always in contact with the first catching jaw formed in the first outer fitting tube. on A first number of pairs of first catching pieces positioned and a first number formed horizontally on an upper end of the first inner fitting tube and supported by an upper end of the first communication tube in a state where the first inner fitting tube is fitted to the first outer fitting tube; The first auxiliary keyboard is hinged to the main body so as to rotate together with the flat plate and means for allowing the first inner fitting tube having the first horizontal plate to rotate together when the first outer fitting tube is rotated. A second communication tube positioned inside the main body so as to be opened in a state where the upper and lower parts are in communication with each other corner portion to which the second auxiliary keyboard is to be coupled among the rear opposite corner parts of the lower surface of the main body, and both rear sides of the upper surface of the second auxiliary keyboard; A second outer fitting pipe formed at an upper end of the other corner part to be coupled to the main body of the corner part and fitted into the inner diameter part of the second communication pipe, and spaced apart from each other in a state opposite to the upper end of the inner diameter of the second outer fitting pipe. A pair of second catching jaws formed, a second inner fitting tube separately formed to be opened in communication with the upper and lower parts, and fitted into an inner diameter portion of the second outer fitting tube, and an outer diameter portion of the second inner fitting tube When the second inner fitting pipe is rotated at right angles while being inserted into the inner diameter of the second outer fitting pipe, the upper end thereof is spaced apart by the thickness of the second catching jaw formed in the second outer fitting pipe and the first auxiliary keyboard. Could be A pair of second catching pieces positioned on the same vertical line in a state of forming a horizontal state at an upper end of the second inner fitting pipe so that the second inner fitting pipe is fitted into the second outer fitting pipe of the second communication tube; A second horizontal plate supported at the upper end, a means for causing the second inner fitting tube in which the second horizontal plate is formed to rotate together when the second outer fitting tube is rotated, and a lower portion along the inner diameter of the second communication tube. And a plurality of cam grooves formed to be inclined upwardly in the upper portion, and are formed to be inclined upwardly from the lower portion to the upper portion along the outer diameter portion of the second outer fitting pipe so as to be inserted into the respective cam grooves according to the rotation direction when the second outer fitting pipe rotates. The second auxiliary keyboard is composed of a plurality of cams which allow the second external fitting pipe to have upward movement or the second external fitting pipe has downward movement while exiting each cam groove. Auxiliary keyboard coupling device of a mobile terminal having a secondary keyboard, characterized in that the hinge coupled to the state capable of pivoting to the sieve and movable up and down in the rotation process. The method of claim 1, Means for causing the first inner fitting tube in which the first horizontal plate is formed to rotate together when the first outer fitting tube is rotated, A pair of first through holes formed in the first horizontal plate and opened up and down in communication with each other between the first catching pieces formed on the first inner fitting pipe in the same vertical line, and the first inner fitting pipe; A pair of first pairs formed between the pair of first catching jaws formed in the inner diameter portion of the first outer fitting tube through each of the first through holes formed in the first horizontal plate of the first horizontal plate and the outer diameter portion of the first inner fitting tube; An auxiliary keyboard coupling device for a mobile terminal having an auxiliary keyboard, characterized in that the first supporting member having a pair of first stoppers integrally fitted vertically into a portion between the engaging pieces. The method of claim 1, Means for causing the second inner fitting tube in which the second horizontal plate is formed to rotate together when the second outer fitting tube is rotated, A pair of second through holes formed in the second horizontal plate and opened up and down in communication with each other between the second catching pieces formed on the second inner fitting pipe in the same vertical line; and the second inner fitting pipes. A pair of second pairs formed between the pair of second catching jaws formed in the inner diameter portion of the second outer fitting tube and through the second through holes formed in the second horizontal plate and supported on the upper end of the pair; A secondary keyboard coupling device of a mobile terminal having an auxiliary keyboard, characterized in that the second support member having a pair of second stoppers integrally inserted into the vertical portion between the engaging pieces. The method of claim 2 or 3, Cable passing holes are vertically formed at the centers of the first support member and the second support member, respectively, so that signal transmission lines used for signal transmission between the main body and the respective auxiliary keyboards pass through the cable through holes, thereby supporting the main body and each auxiliary keybed. Auxiliary keyboard coupling device of a mobile terminal having an auxiliary keyboard characterized in that the circuit connected.