KR100727601B1 - An opening and closing mechanism increased tension power for cellular phone - Google Patents

Abstract

An opening and closing apparatus for increasing elastic force in a portable terminal is provided to increase elastic force and durability by using compression springs as a power source to automatically open or close a sub body in a sliding-type portable terminal. An opening and closing apparatus for increasing elastic force in a portable terminal consists of the first plate(20), the second plate(40), a slide housing(60), a mobile block, a plurality of compression springs, and a roller. The first plate(20) is fixed to a main body(10). The second plate(40) is combined parallel with the first plate(20) so as to make a sliding motion. The second plate(40), at which a cam profile is formed, is fixed to a sub body(30). The slide housing(60) is fixed to the first plate(20). The mobile block is installed at the slide housing(60) so as to move back and forth for the cam profile. The compression springs, supported by the slide housing(60), apply elastic force to the mobile block. The roller, installed at the mobile block so as to make an axial rotation, rotates, contacting 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 a mobile terminal according to one embodiment of the present invention;

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

Figure 3 is a perspective view of the coupled state of the opening and closing device shown in Figure 2,

4 and 5 are partially assembled perspective views of the mobile terminal shown in FIG. 1;

6 to 10 is a perspective view of the main portion showing the action of the switchgear shown in FIG.

FIG. 11 is a perspective view illustrating a state of use of the portable terminal shown in FIG.

<Explanation of symbols for main parts of drawing>

10: main body 20: first plate

22: incision 30: sub body

40: second plate 42: first main part

44: slope 46: second main portion

48: free stop section 50: third main part

52: first guide rib 60: slide housing

62: first shaft hole 64: first refractive groove

66: plate 68: second refractive groove

70: moving block 72: second shaft hole

80: roller 82: rivet

90: compression spring 100: guide shaft

110: track guide 112: second guide rib

The present invention relates to an opening and closing device for a portable terminal with increased elastic force, and more particularly, to increase elasticity and improve durability by using a compression spring as a power source for automatically opening or closing a sub body in a sliding type mobile terminal. .

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 an elastic means, a torsion spring is adopted in which one end is fixed to the main body and the other end is fixed to the sub body.

This torsion spring is fixed to the main body and the other end is fixed to the sub body, the elasticity of the torsion spring is applied over the entire moving distance of the sub body, the torsion spring is greatly tensioned and stretched. 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 and improve the durability by using a compression spring as a power source for automatically opening or closing the sub-body in a sliding type mobile terminal It is to let.

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

At least one compression spring supported by the slide housing to apply an elastic force to the moving block; And

A slide opening and closing device for a mobile terminal having an increased elastic force, the roller being rotatably installed on the moving block and in contact with the cam profile to rotate.

At least one guide shaft is fixed to the slide housing, the moving block moves along the guide shaft, and the compression spring may be fitted to the guide shaft.

The guide shaft has a 'U' shape, and one end of the slide housing is formed with a first shaft hole to which a pair of end sides of the guide shaft are coupled, and the other end of the slide housing inserts a part of the bent portion of the guide shaft. The first refractive groove is formed, and the plate on which the second refractive groove is formed, into which the refractive portion of the guide shaft is inserted, may be coupled to the slide housing.

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 protrudes to the top of the first plate, thereby reducing the thickness of the entire opening and closing device. Can be.

First guide ribs are formed on both side surfaces of the second plate, and a pair of track guides having second guide ribs slidably coupled to the first guide ribs are fixed to both sides of the first plate, whereby the second plate It can be made to slide from one plate.

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 a portable terminal according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the switchgear shown in FIG. 1, and FIG. 3 is a perspective view of a coupled state of the switchgear shown in FIG. 2. 4 and 5 are partially assembled perspective views of the portable terminal shown in FIG.

The opening and closing device for slidably coupling the sub body 30 of the portable terminal from the main body 10 includes: a first plate 20 fixed to the main body 10; A second plate 40 which is slidably coupled in a state parallel to the first plate 20 and has a cam profile in which the recessed portion and the inclined surface 44 are continuous in the sliding direction and is fixed to the sub body 30; A slide housing 60 fixed to the first plate 20; A moving block 70 installed in the slide housing 60 so as to be able to move forward and backward toward the cam profile; A plurality of compression springs 90 supported by the slide housing 60 to exert an elastic force on the moving block 70; And a roller 80 installed axially rotatable in the moving block 70 and rotating in contact with the cam profile.

Two guide shafts 100 having a 'U' shape are fixed to the slide housing 60, and the moving block 70 is formed by a second shaft hole 72 in which the guide shaft 100 is slidably coupled. Moving along the shaft 100, four compression springs 90 are fitted to the pair of end sides of each guide shaft 100.

One end of the slide housing 60 is formed with a first shaft hole 62 to which a pair of end sides of each guide shaft 100 are coupled. The other end of the slide housing 60 is formed with a first refractive groove 64 into which a portion of the deflected portion of the guide shaft 100 is inserted, and a second refractive groove into which the remaining refracted portion of the guide shaft 100 is inserted. The plate 66 on which the 68 is formed is coupled to the slide housing 60.

The cam profile of the second plate 40 is formed with a first recessed portion 42 in the center region, a hill-shaped slope 44 is formed on one side of the first recessed portion 42, the end of the slope 44 The second groove is formed. A flat free stop section 48 is formed at the other side of the first recessed part 42, and a third recessed part 50 is formed at an end of the free stop section 48.

The roller 80 is rotatably coupled to the moving block 70 using the rivet 82. The roller 80 rotates along the cam profile when the second plate 40 moves to reduce friction.

The state in which the roller 80 is coupled to the first recess 42 is a state in which the sub body 30 is closed to the main body 10, and the state in which the roller 80 is coupled to the second recess 46 is The sub body 30 is open to the main body 10, and the roller 80 is coupled to the third recess 50. The sub body 30 is open to the main body 10. .

When the roller 80 climbs the inclined surface 44, a force that causes the elastic force of the compression spring 90 to obstruct the movement of the second plate 40 is generated, and the roller 80 is the inflection point of the inclined surface 44. When descending through the downhill, the elastic force of the compression spring 90 to push the second plate 40 to automatically move.

In addition, when the roller 80 passes the free stop section 48, the elastic force of the compression spring 90 does not affect the movement of the second plate 40. Therefore, the movement of the second plate 40 may be stopped while the roller 80 is located in the free stop section 48.

A cutout 22 is formed in the first plate 20, and the slide housing 60 is fixed to the first plate 20 while being inserted into the cutout 22 so that only the roller 80 is the first plate ( By protruding to the top of 20), the thickness of the entire switchgear is reduced.

First pair ribs 52 are formed on both sides of the second plate 40, and a pair of track guides 110 having second guide ribs 112 slidably coupled to the first guide ribs 52 are provided. The second plate 40 is slidable from the first plate 20 by being fixed to both sides of the first plate 20.

The track guide 110 is fixed to the first plate 20 with a screw. The track guide 110 is manufactured by inserting a metal press water into a plastic injection molding. Therefore, since the track guide 110 is made of a plastic injection molding on the outer surface, friction in contact with the second plate 40 is reduced, and rigidity is improved by the metal press water therein.

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

6 to 10 is a perspective view of the main portion showing the action of the opening and closing device shown in Figure 1, Figure 11 is a perspective view of the use state of the portable terminal shown in FIG.

The state in which the sub body 30 is closed to the main body 10 is as shown in FIG. 6, when the compression spring 90 pushes the moving block 70 and the roller 80 so that the roller 80 has the first recess 42. It stays connected to.

When the sub body 30 is pushed upward, as shown in FIG. 7, the roller 80 moves out of the first recess 42 and passes through the inclined surface 44. When the roller 80 climbs the uphill of the inclined surface 44, the compression spring is applied. The second plate 40 is automatically opened by the elastic force of the compression spring 90 when the resistance force is received by the elastic force of 90 but passes through the inflection point.

And when the roller 80 is coupled to the second recess 46, as shown in Figure 8, the braking force is generated by the elastic force of the compression spring (90).

Meanwhile, when the sub body 30 is pushed downward as shown in FIG. 9, the roller 80 passes through the freestop section 48. In this section, the elastic force of the compression spring 90 does not affect the movement of the second plate 40. Therefore, the user can stop the sub body 30 while moving downward.

The roller 80 is coupled to the third recess 50 as shown in FIG. 10 after passing through the free stop section 48. Here too, the roller 80 generates the stopping force by the elastic force of the compression spring 90.

As described above, the opening and closing device of the present invention has an effect of increasing elasticity and improving durability by using a compression spring as a power source for automatically opening or closing the sub body.

The present invention has been described above as a specific embodiment, but the present invention is not limited to the above-described embodiment, 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 (5)

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 moving block installed in the slide housing so as to be able to move forward and backward toward the cam profile; At least one compression spring supported by the slide housing to apply an elastic force to the moving block; And Slider opening and closing device for a portable terminal to increase the elastic force is formed in the movable block rotatably and comprises a roller in contact with the cam profile to rotate. The method according to claim 1, One or more guide shafts are fixed to the slide housing, the movable block moves along the guide shaft, and the compression spring is fitted to the guide shaft. The guide shaft is formed in a 'U' shape, one end of the slide housing is formed with a first shaft hole that is coupled to the pair of end of the guide shaft, the other end of the slide housing is bent the guide shaft A slide for a mobile terminal having increased elastic force, wherein a first refractive groove into which a part of the portion is inserted is formed, and a plate formed with a second refractive groove into which the remaining refractive portion of the guide shaft is inserted is coupled to the slide housing. Switchgear. The method of claim 1, wherein the first plate is formed with a cutout, the slide housing is fixed to the first plate in a state inserted into the cutout characterized in that only the roller protrudes to the top of the first plate Slide opening and closing device for a mobile terminal with increased elasticity. The method of claim 1, wherein a first guide rib is formed on both sides of the second plate, and a pair of track guides having a second guide rib slidably coupled to the first guide rib are fixed to both sides of the first plate. Slide opening and closing device for a portable terminal characterized by increasing the elastic force.

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