KR200246041Y1 - Folded-type pointing stick for used in portable terminal - Google Patents

Abstract

A foldable pointing stick for a portable terminal is posted. The foldable pointing stick of the present invention is mounted in the portable terminal, the guide hole having a predetermined depth is formed in the thickness direction of the portable terminal; A main shaft rotatably supported in the frame and having a long hole communicating with the guide hole in the thickness direction of the portable terminal, and having a groove formed at an upper end thereof; A lifting rod mounted in the long hole of the main shaft in a longitudinal direction, the lifting rod having an upper end protruding upward of the groove; And an upper end of the elevating rod is rotatably connected to the lower end, and is installed in parallel with the upper surface of the portable terminal, and is inserted into the guide hole of the frame according to the downward movement of the elevating rod to be upright with respect to the upper surface of the portable terminal. Includes a handle seated on it. According to the foldable pointing stick for a mobile terminal of the present invention, since the handle is stored in a folded state, the overall thickness of the mobile terminal can be remarkably slimmed than the thickness of the mobile terminal to which the prior art shanghai pointing stick is applied. have.

Description

Folded pointing stick for mobile terminal {FOLDED-TYPE POINTING STICK FOR USED IN PORTABLE TERMINAL}

The present invention relates to a pointing stick applied to a portable terminal such as a notebook, a personal digital assistant (PDA), a mobile phone, and the like.

In general, portable terminals such as laptops, personal digital assistants, mobile phones, and the like are configured so that a user selects a command for driving a predetermined program. Accordingly, the portable terminal displays a pointer for designating a command on the screen and includes a plurality of direction keys for moving the pointer. However, according to the trend of miniaturization of portable terminals, the size of the direction keys is also reduced, which makes it very inconvenient for a user to operate the direction keys. Recently, portable notebooks having a pointing stick for moving a pointer on the screen have been developed.

Then, the pointing stick of the prior art applied to the portable notebook described in the Republic of Korea Utility Model Model No. 20-0184330 with reference to the attached Figures 1 and 2 will be briefly described. 1 and 2, a pointing stick of the related art applied to a portable notebook includes a lower frame 10 fixed to a lower plate of the notebook 1, an upper frame 20 fixed to the lower frame 10, and The cover frame 30 and a handle 40 mounted in the cover frame 30 so as to be movable.

Rotating rod 50 is installed on the cover frame 30. The rotating rod 50 has a plurality of inclined protrusions 52 in the longitudinal direction, the ceramic ball 60 is connected to the lower end, it can be rotated and moved by the spring 70. Such a rotating bar 50 is provided with a plurality of inclined portion in the longitudinal direction, the lifting bar 80 is formed with a projection 82 is inserted.

The handle 40 is provided with a groove (not shown) into which the protrusion 82 of the elevating rod is inserted, and an inclined portion (not shown) engaged with the inclined protrusion 52 of the rotating rod to rotate the rotating rod 50. ) Is formed.

In the prior art pointing stick configured as described above, when the user covers the cover 1a without using the notebook, the handle 40 is pressed by the cover 1a of the notebook and pressed into the inside of the notebook. Keep it. At this time, the upper portion of the handle 40 is protruded to the upper side of the notebook (1) body, the projection of the handle 40 is located in the receiving groove (1b) formed in the cover (1a).

On the other hand, when the user opens the cover 1a and uses the handle 40 to use the notebook, the handle 40 fully protrudes upward of the notebook because the inclined protrusion 52 of the rotating rod moves along the inclined part of the handle. do.

However, since the pointing stick for a conventional portable terminal as described above is housed or used by being moved up and down, there is a problem of increasing the overall thickness of the portable terminal.

In addition, due to the above-described problems, the conventional pointing stick has a problem in that it is difficult to apply to a terminal carried in a pocket such as a personal digital assistant (PDA) or a mobile phone.

The object of the present invention is to provide a folding pointing stick for a portable terminal that can effectively solve the above-mentioned problems of the prior art.

1 is a perspective view showing a prior art pointing stick applied to a notebook.

2 is a cross-sectional view showing in detail the structure of the pointing stick of FIG.

Figure 3 is a perspective view showing a foldable pointing stick of the present invention applied to a notebook.

4 is a cross-sectional view showing in detail the structure of the foldable pointing stick of FIG. 3, showing a state in which the handle is folded when not in use.

5 is a cross-sectional view showing in detail the structure of the foldable pointing stick of Figure 3, showing the state in which the handle is erect upright operation when in use.

FIG. 6 is a cross-sectional view taken along the line AA ′ of FIG. 5.

7a and 7b is a view showing another application state of the foldable pointing stick according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: frame 200: spindle

300: elevating rod 400: handle

One aspect of the present invention for achieving the above technical problem relates to a folding pointing stick for a portable terminal. The foldable pointing stick of the present invention is mounted in the portable terminal, the guide hole having a predetermined depth formed in the thickness direction of the portable terminal; A main shaft rotatably supported in the frame and having a long hole communicating with the guide hole in a thickness direction of the portable terminal and having a groove formed at an upper end thereof; A lifting rod mounted in the long hole of the main shaft in a longitudinal direction and having an upper end protruding upward of the groove; And an upper end of the elevating rod is rotatably connected to a lower end thereof, and is installed in parallel with an upper surface of the portable terminal and is introduced into the guide hole of the frame according to the downward movement of the elevating rod. It comprises a handle seated in the groove of the main shaft to stand upright.

In addition, another aspect of the present invention for achieving the above technical problem relates to a pointing stick for inputting a movement command of the pointer displayed on the screen of the portable terminal. Foldable pointing stick according to another aspect of the present invention is installed in parallel to the upper surface of the mobile terminal, can be erected upright with respect to the upper surface of the mobile terminal, the upright and can stand to input the movement command of the pointer It features.

The objects, features and advantages of the present invention described above will be more clearly understood through the following detailed description in conjunction with the accompanying Figures 3-7B.

Figure 3 is a perspective view showing a foldable pointing stick of the present invention applied to a notebook, Figure 4 is a cross-sectional view showing in detail the structure of the foldable pointing stick of Figure 3, when not in use, a view showing a folded state of the handle. 3 and 4, the foldable pointing stick of the present invention includes a frame 100, a main shaft 200, a lifting rod 300, and a handle 400 mounted on the portable notebook 1.

The frame 100 is embedded in the notebook 1 and includes an upper frame 110, a support frame 120, and a lower frame 130. The upper frame, the support frame and the lower frame 110, 120, 130 are coupled to each other by a predetermined number of bolts 102.

The upper frame 110 has a seating groove 112 on which the handle 400 is seated on an upper surface thereof, and an elastic piece 114 for fixing the handle 400 at the center of the seating groove 112. . The elastic piece 114 is formed with an opening on the upper side, made of a synthetic resin material or a sheet metal material having a predetermined elasticity, is formed to be pressed by the handle 400. In addition, a guide hole 116 of a predetermined depth is formed in the center of the upper frame 110 in the thickness direction of the notebook (1). In this embodiment, since the mounting groove 112 is formed in parallel to the upper surface of the notebook 1 to one side of the guide hole 116, the other side of the upper frame 110 is formed thicker than one side. The upper frame 110 may be formed integrally with the upper plate of the main body of the notebook (1). Accordingly, the handle 400 may be completely accommodated in the mounting groove 112 so as not to protrude to the upper surface of the notebook 1 as shown in the example.

The support frame 120 has a through hole 122 having a predetermined diameter in the center thereof. The through hole 122 has a cross-sectional shape of a bowl (Bowl) that is widened while having a gentle inclination toward the upper side. Preferably, the through hole 122 is located on the same axis as the guide hole 116.

The lower frame 130 forms a space in which the lower end of the main shaft 200 can swing when the user manipulates the pointing stick of the present invention.

The main shaft 200 is mounted to penetrate the through-hole 122 of the support frame, and has a wing piece 210 that is rotatably supported in close proximity to the upper surface of the through-hole 122 on the outer peripheral surface of the central portion. The main shaft 200 is formed to have a diameter smaller than the inner diameter of the through hole 122, it can be freely rotated back and forth, left and right in a state in which the wing piece 210 is supported by the support frame 120. On the other hand, the ceramic ball 500 is mounted on the lower end of the main shaft (200). In the present specification, since the ceramic ball 500 is a known technique commonly used in a conventional joystick, detailed description thereof will be omitted.

In addition, a predetermined groove 220 on which the lower end of the handle 400 is seated is formed at an upper end of the main shaft 200, and a plurality of slots 222 are formed at predetermined intervals on an inner wall surface of the groove 220. .

In addition, the long hole 230 is formed to penetrate in the longitudinal direction inside the main shaft 200. Preferably, the long hole 230 is formed to be coaxial with the guide hole 116 of the upper frame (that is, in the thickness direction of the notebook 1) to communicate with the guide hole 116. Here, a predetermined locking jaw 240 is formed between the long hole 230 and the recess 220.

The lifting rod 300 is embedded in the long hole 230 of the main shaft so as to be movable. The upper end of the elevating rod 300 is protruded to the upper side of the groove 220, the lower end is always located inside the long hole 230 by the locking jaw 240 of the main shaft. Preferably, the lower end of the elevating rod 300 is formed to have a diameter substantially coincident with the diameter of the long hole 230 or as small as a predetermined size, so that when the shank at the same time or the rotation of the main shaft 200, the elevating rod ( 300 may be prevented from rocking from side to side within the long hole 230.

The handle 400 has a lower end portion formed in a hemispherical shape, and a semi-circular or scalloped groove (not shown) passing through the center thereof is formed inside the lower end portion. Here, the upper end of the lifting rod 300 is coupled to the center of the lower groove of the handle 400 so as to be rotatable by the pin 410. In addition, a plurality of protrusions 420 are formed on the outer circumferential surface of the lower end of the handle 400 and coupled to the slot 222 formed in the groove of the main shaft.

Referring to the state of use of the foldable pointing stick for a mobile terminal of the present invention configured as described above are as follows. First, when not using the foldable pointing stick of the present invention, the handle 400 is folded to be inserted into the seating groove 112 of the upper frame as shown in Figure 4 is fixed by the elastic piece 114. At this time, the handle 400 is located parallel to the upper surface of the notebook 1, the lower end of the lifting rod 300 is a top dead center close to the upper side of the long hole 230, that is, the locking jaw 240 of the main shaft Is located in.

As described above, since the foldable pointing stick of the present invention can be folded, the thickness of the portable terminal to which the foldable pointing stick of the present invention is applied may be thinner than the portable terminal to which the pointing stick of the prior art is moved. That is, according to the foldable pointing stick of the present invention, slimming of the portable terminal is possible, thereby making it easy to carry the terminal.

And, when using the folding pointing stick of the present invention, as shown in Figures 5 and 6, when the user lifts the handle 400 to separate from the elastic piece 114, the lifting rod 300 is a guide hole A downward movement along the 112, and eventually, the projection 420 of the lower end of the handle 400 is coupled to the slot 222 of the main shaft is seated in the groove 220 of the main shaft, the handle 400 is a notebook ( It is erected upright on the upper surface of 1). At this time, the lower end of the lifting rod 300 is located at the bottom dead center. In this case, when the user applies an operation force for moving the pointer on the notebook 1 to the handle 400, the operation force causes the main axis to move through the protrusion 420 of the handle and the slot 220 of the main axis.

Meanwhile, in the above-described embodiment, the folding pointing stick of the present invention is shown and described as being applied to a notebook, but in another embodiment of the present invention, a personal digital assistant (PDA) 3 as shown in FIGS. 7A and 7B. It is apparent that the present invention can be applied to a mobile terminal such as a mobile phone 5.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. For example, in the above-described embodiment, the guide hole 112 is shown and described as being exposed to the outside, but in another embodiment of the present invention, the foreign matter is introduced into the guide hole 112 by isolating the guide hole 112 from the outside. A cover for preventing the retraction may be mounted to the upper frame 110. In this case, the cover is preferably made of an elastic material such as rubber so that the handle 400 can be easily folded. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached utility model registration claims.

Since the folding pointing stick for a portable terminal of the present invention as described above is accommodated in a folded state, the thickness of the portable terminal can be significantly slimmer than the thickness of the portable terminal to which the shanghai pointing stick of the prior art is applied. .

In addition, for the above-described reasons, the foldable pointing stick of the present invention can be applied to a terminal such as a personal information terminal, a mobile phone, etc. which is usually carried in a pocket or the like. That is, the coverage of the pointing stick can be increased significantly.

Claims (5)

In the pointing stick for a mobile terminal, A frame mounted in the portable terminal, the guide hole having a predetermined depth formed in the thickness direction of the portable terminal; A main shaft rotatably supported in the frame and having a long hole communicating with the guide hole in a thickness direction of the portable terminal and having a groove formed at an upper end thereof; A lifting rod mounted in the long hole of the main shaft in a longitudinal direction and having an upper end protruding upward of the groove; And The upper end of the elevating rod is connected to the lower end so as to be rotatable, and is installed in parallel with the upper surface of the portable terminal, and is drawn into the guide hole of the frame according to the downward movement of the elevating rod, thereby standing upright against the upper surface of the portable terminal. A handle seated in the groove of the spindle Foldable pointing stick for a mobile terminal comprising a. The method of claim 1, wherein the frame And a resilient piece for gripping a handle installed in parallel with an upper surface of the portable terminal. The method of claim 1, wherein the frame It is formed on the elastic piece side, the folding pointing stick for a mobile terminal, characterized in that it comprises a groove in which the handle is placed parallel to the upper surface of the mobile terminal. The method according to any one of claims 1 to 3, wherein the main axis It includes a plurality of slots formed on the inner wall surface of the groove, The handle is And a plurality of protrusions coupled to the slots of the grooves on an outer circumferential surface of the lower portion seated in the grooves. A pointing stick for inputting a movement command of a pointer displayed on a screen of a mobile terminal, The pointing stick is installed in parallel with the upper surface of the portable terminal, can be erected upright with respect to the upper surface of the portable terminal, the upright stand for the portable terminal, characterized in that for inputting a movement command of the pointer. Foldable pointing stick.