KR100738569B1 - An opening and closing mechanism increased tension power for cellular phone - Google Patents

Abstract

An opening or closing device for a portable terminal is provided to enhance durability by increasing an elastic force and reducing displacement via usage of a compression spring and a torsion spring as a power source for closing or opening a sub body. An opening or closing device for a portable terminal increasing an elastic force includes the first plate(10), the second plate(20), a slide housing, a slide shaft(80), a compression spring(60), a torsion spring(70) and a roller(90). The second plate(20) is slidably combined with the first plate(10) in a parallel state, and forms a cam profile where a recess and a slant surface are continued along a sliding direction. The slide housing is fixed to the first plate(10). The slide shaft(80) is installed within the slide housing such that the slide shaft(80) can move forward and get away from the cam profile. The compression spring(60) puts the elastic force to the slide shaft(80) within the slide housing. The torsion spring(70) puts an elastic force to the slide shaft together with the compression spring(60) within the slide housing. The roller(90) is installed at the slide shaft(80) such that the roller(90) can rotate axially, and rolls while being in contact with the cam profile.

Description

Switching device for mobile terminal with increased elasticity {AN OPENING AND CLOSING MECHANISM INCREASED TENSION POWER FOR CELLULAR PHONE}

1 is an exploded perspective view of an opening and closing device according to an embodiment of the present invention;

Figure 2 is an exploded perspective view of another angle of the opening and closing device shown in Figure 1,

Figure 3 is a perspective view of the main coupling portion of the opening and closing device shown in Figure 1,

4 to 7 is a plan view showing a state of use of the switchgear shown in FIG.

<Explanation of symbols for main parts of drawing>

10: first plate 12: incision

14: shaft holder 20: second plate

22: guide shaft 24: first main part

26: slope 28: second main portion

30: third main part 40: upper case

50: lower case 52: opening

54: cylindrical portion 56: passage

60: compression spring 70: torsion spring

72: coil portion 74: first ring portion

76: second core portion 80: slide axis

90: roller 100: rivet

The present invention relates to an opening and closing device for a mobile terminal with increased elastic force, and in particular, a compression spring and a torsion spring are used together as a power source for automatically opening or closing a sub body in a sliding type mobile terminal to increase elastic force and improve durability. It is to improve.

As a sliding type terminal, a sliding type portable wireless terminal is disclosed in Utility Model Application No. 2003-0000136.

The terminal disclosed in this application is adapted to change the direction of the pressing force in the opening or closing direction with respect to the guide means for guiding the sub body on the main body and the predetermined sliding position of the sub body between the sub body and the main body. It includes at least one elastic means is installed. And the elastic body can maintain the maximum open position or the maximum closed position without a separate stopper during the fully open or closed operation.

As such elastic means, a torsion spring, one end of which is fixed to the main body and the other end of which is fixed to the subbody, is adopted.

The torsion spring is fixed at one end to the main body and the other end to the sub body, so that the torsion spring is elastically stretched over the entire moving distance of the sub body, and the torsion spring is greatly tensioned and unfolded. Therefore, while the operation is large for the smooth operation of the torsion spring, a torsion spring with a small elastic force is used, and two torsion springs are installed to compensate for the insufficient elastic force.

However, the torsion spring has a problem in that the displacement width is large due to its characteristics, and thus the normal function is lost or disconnected early due to the accumulation of fatigue due to the repeated operation.

The present invention has been made to solve the above problems, an object of the present invention is to increase the elastic force by using a compression spring and a torsion spring as a power source for automatically opening or closing the sub body in a sliding type mobile terminal. To improve durability.

The present invention for achieving the above object, the first plate;

A second plate slidably coupled in a state parallel to the first plate and having a cam profile in which recesses and slopes are continuous in a sliding direction;

A slide housing fixed to the first plate;

A slide shaft installed in the slide housing so as to be able to move forward and backward toward the cam profile;

A compression spring for applying an elastic force to said slide axis in said slide housing;

A torsion spring for applying an elastic force to said slide shaft together with said compression spring in said slide housing; And

Provided is a slide opening and closing device for a portable terminal to increase the elastic force made to be axially rotatable on the slide shaft and comprises a roller rotating in contact with the cam profile.

The slide housing may be formed with a passage for guiding the slide shaft to move toward the cam profile.

The slide housing is made of a combination of the upper case and the lower case, one side of the upper case and the lower case may be formed with an opening for protruding the coil portion of the torsion spring.

The slide housing is made of a combination of the upper case and the lower case, one side of the upper case and the lower case is formed with a cylindrical portion protruding by a burring process to pass through the rivet, is formed at one end of the torsion spring The first ring portion may be coupled to the cylindrical portion, and the second ring portion formed at the other end portion may be coupled to the slide shaft.

An incision is formed in the first plate, and the plate housing is fixed to the first plate while being inserted into the incision so that only the roller can protrude above the first plate.

Guide shafts may be fixed to both sides of one of the first plate and the second plate, and shaft holders to which the guide shafts are slidably coupled may be fixed to the other both sides.

Best Mode for Carrying Out the Invention A preferred embodiment of the opening and closing device of the present invention will be described with the accompanying drawings.

1 is an exploded perspective view of an opening and closing device according to an embodiment of the present invention, FIG. 2 is another perspective exploded perspective view of the opening and closing device shown in FIG. 1, and FIG. 3 is a perspective view of the main assembly of the opening and closing device shown in FIG. 1.

The opening and closing device for slidably coupling the sub body of the portable terminal from the main body includes: a first plate 10 fixed to the main body; A second plate 20 slidably coupled in a state parallel to the first plate 10 and having a cam profile in which recesses and inclined surfaces 26 are continuous along the sliding direction; A slide housing fixed to the first plate 10; A slide shaft (80) installed in the slide housing so as to be able to move forward and backward toward the cam profile; A compression spring 60 for applying an elastic force to the slide shaft 80 in the slide housing; A torsion spring 70 for applying an elastic force to the slide shaft 80 together with the compression spring 60 in the slide housing; And a roller 90 rotatably installed on the slide shaft 80 to rotate in contact with the cam profile.

In this embodiment, since the elastic force of the compression spring 60 and the torque of the torsion spring 70 are applied to the slide shaft 80, the slide shaft 80 receives a strong elastic force. Therefore, as the elastic force of the compression spring 60 and the torsion spring 70 is increased, the displacement can be reduced. Accordingly, even if the compression spring 60 and the torsion spring 70 are used for a long time, the function is not degraded or damaged.

The slide housing is made of a combination of the upper case 40 and the lower case 50 made of a metal press water, one side of the upper case 40 and the lower case 50, the coil portion 72 of the torsion spring 70 An opening 52 is formed to protrude). The upper case 40 and the lower case 50 may be made of a plastic mold having high strength.

And the slide housing is formed with a passage 56 for guiding the slide shaft 80 to move toward the cam profile.

In addition, the lower case 50 forms a plurality of cylindrical portions 54 protruding by a burring process, and the rivets are coupled to the upper case 40 by passing through the center of the cylindrical portion 54.

The first ring portion 74 formed at one end of the torsion spring 70 is coupled to the cylindrical portion 54, and the second ring portion 76 formed at the other end is coupled to the slide shaft 80.

An incision 12 is formed in the first plate 10 and the slide housing is fixed to the first plate 10 with the slide housing inserted into the incision 12 so that only the roller 90 of the first plate 10 is formed. Protrude upwards. Therefore, by minimizing the combined thickness of the slide housing and the first plate 10, the entire opening and closing device is slimmed.

Guide shafts 22 are fixed to both sides of the second plate 20, and shaft holders 14 to which the guide shafts 22 are slidably coupled are fixed to both sides of the first plate 10.

The cam profile of the second plate 20 is formed with a first recessed portion 24 in the center region, a hill-shaped inclined surface 26 is formed on one side of the first recessed portion 24, the end of the inclined surface 26 The second recessed portion 28 is formed. The third recess 30 is formed on the other side of the first recess 24.

The roller 90 is rotatably coupled to the slide shaft 80 using the rivet 100. The roller 90 rotates along the cam profile when the second plate 20 moves to reduce friction.

The state in which the roller 90 is coupled to the first recess 24 is a state in which the sub body is closed to the main body, and in the state in which the roller 90 is coupled to the second recess 28, the sub body is connected to the main body. In the open state, the state in which the roller 90 is coupled to the third recess 30 is a state in which the sub body is opened downward to the main body.

When the roller 90 climbs the inclined surface 26, a force that causes the elastic force of the compression spring 60 and the torsion spring 70 to obstruct the movement of the second plate 20 is generated, and the roller 90 When descending past the inflection point of the inclined surface 26, the elastic force of the compression spring 60 and the torsion spring 70 is pushed to the second plate 20 to move automatically.

Hereinafter, the operation of the switchgear having the above configuration will be described.

4 to 7 is a plan view showing a state of use of the switchgear shown in FIG.

4, the compression spring 60 and the torsion spring 70 push the slide shaft 80 and the roller 90 so that the roller 90 is the first recessed portion 24 as shown in FIG. It stays connected to.

When the sub-body is pushed upward, as shown in FIG. 5, the roller 90 moves away from the first recessed portion 24 and passes through the inclined surface 26. When the roller 90 climbs the uphill of the inclined surface 26, the compression spring 60 is used. The second plate 20 is automatically opened by the elastic force of the compression spring 60 and the torsion spring 70 after being resisted by the elastic force of the torsion spring 70 but passing through the inflection point.

6, when the roller 90 is coupled to the second recess 28, a braking force is generated by the elastic force of the compression spring 60 and the torsion spring 70.

Meanwhile, when the sub body is pushed down in the initial state as shown in FIG. 4, the roller 90 is coupled to the third recessed part 30 as shown in FIG. 7 by moving away from the first recessed part 24. Here, the roller 90 generates the stopping force by the elastic force of the compression spring 60 and the torsion spring 70.

As described above, the opening and closing device of the present invention increases the elastic force of the opening and closing device by increasing the elastic force and reducing the displacement by using a compression spring and a torsion spring as a power source for automatically opening or closing the sub body. There is an effect to improve.

The present invention has been described above by way of specific embodiments, but the present invention is not limited to the above-described embodiments, and those skilled in the art without departing from the gist of the present invention claimed in the claims. Anyone can make a variety of variations.

Claims (6)

First plate; A second plate slidably coupled in a state parallel to the first plate and having a cam profile in which recesses and slopes are continuous in a sliding direction; A slide housing fixed to the first plate; A slide shaft installed in the slide housing so as to be able to move forward and backward toward the cam profile; A compression spring for applying an elastic force to said slide axis in said slide housing; A torsion spring for applying an elastic force to said slide shaft together with said compression spring in said slide housing; And A slide opening and closing device for a portable terminal to increase the elastic force is formed rotatably on the slide shaft and comprises a roller in contact with the cam profile to rotate. The method according to claim 1, The slide housing opening and closing device for increasing the elastic force formed with a passage for guiding the slide shaft to move toward the cam profile. The method of claim 1, wherein the slide housing is made of a combination of the upper case and the lower case, One side of the upper case and the lower case slide opening and closing device for increasing the elastic force, characterized in that the opening is formed for protruding the coil portion of the torsion spring. The method of claim 1, wherein the slide housing is made of a combination of the upper case and the lower case, one side of the upper case and the lower case is formed with a cylindrical portion protruding by a burring process to pass the rivets, And a first ring portion formed at one end of the torsion spring is coupled to the cylindrical portion, and a second ring portion formed at the other end is coupled to the slide shaft. The method of claim 1, wherein a cutout is formed in the first plate, and the plate housing is fixed to the first plate while being inserted into the cutout, so that only the roller protrudes above the first plate. Slide opening and closing device for a mobile terminal with increased elasticity. The method according to claim 1, wherein the guide shaft is fixed to both sides of one of the first plate or the second plate, the shaft holder to which the guide shaft is slidably coupled to the other both sides is fixed to the elastic force Increased slide opening and closing device for a mobile terminal.

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