KR100802430B1 - Elastic body and sliding apparatus of the same - Google Patents

Abstract

An elastic member and a sliding member using the same are provided to have a reduced size by having a thinner spring to thus make a device or an apparatus employing the elastic member thinner and enhance portability. Two slide bars(24) having a long bar shape, are insertedly mounted at both ends of a body part(21) in a facing manner, and are moved in a horizontal direction. Two guides are formed within the body part(21) and guide the horizontal movement of the slide bars(24). A plurality of springs are disposed within the body part(21) and support the second end portions, namely, end portions mounted within the body part(21), of the respective slide bars(24). Each spring is formed in zigzags on the same planar surface and bent at uniform intervals. As the second end portions are moved in a horizontal direction along each guide in a state of being supported by the springs, the length of exposed portions of the slide bars(24) varies.

Description

ELASTIC BODY AND SLIDING APPARATUS OF THE SAME}

1 is a view showing a conventional elastic member.

2 is a perspective view of an elastic member according to the present invention.

3 is an exploded perspective view of the elastic member according to the present invention.

4 is a plan view of an elastic member according to the present invention;

5 is a cross-sectional view of the elastic member according to the present invention.

6 is a state of use of the elastic member according to the present invention.

*** Explanation of symbols on the main parts of the drawing ***

20: elastic member 21: body portion

22: guide groove 23: bulkhead

24: slide bar 25: engaging projection

26: engaging groove 27: rotating projection

28: spring 30: lower slider

31, 41: rotation groove 40: upper slider

100: sliding member

The present invention relates to an elastic member and a sliding member using the same. Specifically, in an elastic member that contracts and relaxes by using an elastic force of a spring, the elastic member is configured to be slim by configuring a thickness of the spring while maintaining the elastic force. It relates to an elastic member and a sliding member using the same.

Elastic members of various configurations are used for mechanisms or devices requiring elastic force. An example of the conventional elastic member is shown in FIG. 1 is a view showing a conventional elastic member, Figure 1 (a) is a perspective view of a conventional elastic member, Figure 1 (b) is a cross-sectional view taken along the line AA 'of Figure 1 (a). As shown in FIGS. 1A and 1B, the conventional elastic member 10 includes a body part 11 and two bars 12 mounted in a state where a part of the body part is exposed to the outside of the body part 11. And a spring 13 mounted inside the body to support each bar. The conventional elastic member 10 supports each bar 12 by using a spring 13 inside the body portion 11 so that each bar has an elastic movement in the lateral direction.

At this time, when the thickness of the upper plate of the body portion 11 't1', the thickness of the spring 13 't2', and the thickness of the lower plate of the body portion 't3' 'the thickness of the conventional elastic member 10' T1 'becomes' t1 + t2 + t3'. Conventional elastic member 10 used a spiral spring 13, in this case 't2' is the diameter of the spring. On the other hand, when the spring 13 is configured in a spiral shape, no matter how thin the diameter is configured, there is a limitation, in order to have a proper elastic force of the spring should have at least a constant diameter. As a result, the thickness of the elastic member 10 is determined by the thickness t2 of the spring 13 so that no matter how thin the thicknesses t1 and t3 of the upper and lower plates of the body portion 11 are formed, the thickness of the elastic member 10 is reduced. There was a limit to the reduction. Therefore, it is impossible to slim down the elastic member 10, and therefore, the mechanism or device using the elastic member has to be large and thick. In particular, when the elastic member 10 is applied to a portable terminal, there is a problem in that the terminal cannot be configured to be small and slim, thereby reducing portability.

The present invention has been made to solve the above problems, and an object of the present invention is to have a high elastic force in the elastic member that contracts and relaxes using a spring and to stably distribute external force applied in both directions to each spring uniformly. It is to provide an elastic member that can be smoothly contracted and relaxed.

In addition, another object of the present invention is to provide a resilient member that can increase the utilization by making the elastic member small and slim by making the thickness of the spring to be built thin and increase the portability by slimming the device or device in which the elastic member is used. It is.

In addition, another object of the present invention is to provide a sliding member that can make the sliding member thin by making the sliding member thin by applying an elastic member that is small and slim in the sliding member connecting the communication unit and the receiving unit of the sliding mobile phone. To provide.

In order to achieve the above object, the elastic member according to the present invention is an elastic member having a variable length by elastic force, forming a body portion, an elongated bar shape, and are inserted into each side of the body portion while facing each other and are laterally inserted. Two slide bars, each of which is formed inside the body part, mounts each slide bar, and guides each of the slide bars to induce lateral movement of each slide bar, and is disposed inside the body part of each slide bar inserted into the body part. A plurality of springs each supporting a second end, wherein each spring has a shape in which an elongated elastic body is zigzag-shaped on the same horizontal surface and bent at regular intervals, and each slide bar is supported by each spring; In transverse direction along each guide and exposed to the outside of the body It characterized in that the length of the station to be varied.

Preferably, the body portion includes insertion holes formed at both ends for mounting each slide bar, respectively, and each guide is arranged to be parallel to each other based on the transverse direction facing each other. In addition, each guide includes at least one guide groove which is formed to be recessed in the transverse direction in at least one of the bottom surface of the upper plate and the lower plate of the body portion, each slide bar, each guide bar on a surface facing each guide groove It is formed to protrude to the same width as the groove to include one or more engaging projections fitted in each guide groove. More preferably, the guide includes two guide grooves for each slide bar, and each slide bar also includes two engaging protrusions, the body portion being transversely inward of the body portion in the space between the two guide grooves. A partition wall formed to protrude elongated, and each slide bar extends in the transverse direction from the second end of the slide bar in the space between the two engaging projections so as to penetrate through the same width as the partition wall so that the partition wall fits and engages. Include coupling grooves. In addition, the elastic member includes two springs for each slide bar, and each spring is arranged in the inner space of the body portion separated by the partition wall. In addition, each slide bar is to include a rotary protrusion which is formed to protrude in a circular cross section at the first end.

In addition, in order to achieve the above another object, the sliding member according to the present invention includes a receiver for which a liquid crystal screen is installed and a telephone unit for installing a key button, and in the sliding mobile phone for sliding opening and closing the receiver, A mobile phone sliding member installed between the communication units and slidingly opening and closing the receiver unit, the mobile phone sliding member mounted on any one of the communication unit and the receiver unit, having a flat plate shape, and including a rotating groove penetrating in a circular shape in a predetermined distance from the first side. Mounted on the other one of the lower slider, the communication unit, and the receiver, and mounted to the lower slider while surrounding both sides of the lower slider, and sliding up and down along the lower slider, from a second side facing the first side of the lower slider. Including a rotating groove formed in a circular through the predetermined distance An upper slider, and an elastic member that is variable in length by an elastic force and is mounted between the lower slider and the upper slider to support sliding of the upper slider, wherein the elastic member forms a body portion, an elongated rod shape, and the amount of the body portion. Each of the rotating protrusions inserted into each other and facing each other at the end are moved in the lateral direction, and a circular cross section is formed at the first end exposed to the outside of the body to form a protrusion, and is coupled to each rotating groove of the upper slider and the lower slider, respectively. Two slide bars, including two slide bars which are formed inside the body portion to mount each slide bar, induce lateral movement of each slide bar, and each slide bar disposed inside the body portion and inserted into the body portion. Each spring comprising a plurality of springs each supporting a second end; The elongated elastic body is zigzag on the same horizontal surface and bent at regular intervals, and each slide bar is exposed to the outside of the body part while moving in the transverse direction along each guide with the second end supported by each spring. The length of the region is characterized in that it is variable.

Hereinafter, with reference to the accompanying drawings will be described in detail the advantages, features and preferred embodiments of the present invention.

2 is a perspective view of the elastic member according to the present invention, Figure 3 is an exploded perspective view of the elastic member according to the present invention. In particular, in FIG. 3, a part of the plane of the body part is cut away to clearly show an internal configuration of the body part. Referring to Figures 2 and 3 will be described with respect to the configuration of the elastic member according to the present invention.

The elastic member 20 according to the present invention, the body portion 21, two slide bars 24 mounted in the body portion and moving in the lateral direction and mounted inside the body portion to support the movement of the slide bar in the lateral direction A plurality of springs 28 is included. Each slide bar 24 is inserted and mounted with both regions exposed at both ends of the body portion 21, and the entire length of the elastic member 20 is changed while moving in the transverse direction while being supported by the spring 28. do. Preferably, an insertion hole (not shown) is formed to penetrate and insert the spring 28 and the slide bar 24 at both ends of the body portion 21.

Body portion 21 mounts two slide bars 24 through both ends and a spring 28 therein. Each slide bar 24 is mounted inside the body portion 21 and includes a guide for inducing each slide bar to move in the lateral direction. Guides are provided corresponding to each slide bar 24, and each guide is protruded or recessed in the transverse direction as long as each slide bar moves. Thus, each slide bar 24 moves in the transverse direction along the guide in a state of being coupled to each guide. At this time, the respective guides corresponding to the slide bars 24 are not arranged on the same extension line in the transverse direction, but are arranged in staggered positions. That is, each slide bar is disposed parallel to each other on the basis of the transverse direction.

The elastic member 20 according to the present invention may have a guide groove 22 as shown in FIG. 3 as an example of a guide. The guide groove 22 is formed to be recessed or penetrated in the transverse direction in the plane of the lower plate of the body portion, specifically, the body portion 21. The guide groove 22 is preferably formed to have the same length as the range in which the slide bar 24 moves, and may be formed on the bottom surface of the top plate of the body portion or on both the bottom plate and the top plate of the body portion. Further, the guide grooves 22 corresponding to each slide bar 24 are arranged to be staggered, i.e., parallel to each other, without being disposed on the same extension line in the transverse direction. In this case, compared with the case where it arrange | positions on the same extension line of the horizontal direction, the length of the body part 21 can be reduced significantly. In addition, in order to stably support the lateral movement of the slide bar 24, at least two guide grooves 22 are included for one slide bar. Particularly, in the case of including two guide grooves 22 with respect to one slide bar 24, the space between two guide grooves, either the bottom of the top plate or the bottom plate of the body 21, projects toward the inside of the body part. To include a partition 23 that is elongated in the transverse direction. The partition 23 forms a space in which the springs 28 are seated while supporting the lateral movement of the slide bar 24.

2 and 3 illustrate an embodiment in which the upper plate and the lower plate of the body portion 21 are integrally formed, the body portion 21 to facilitate mounting and assembly of the spring 28 and the slide bar 24. Of course, the upper plate or the lower plate of the can also be configured in a removable form.

The slide bar 24 forms an elongated bar shape, and is mounted on both ends of the body portion 21 so as to face each other. At this time, since the respective guides on which the slide bars 24 are mounted are arranged in parallel to each other instead of on the same extension line in the lateral direction, the respective slide bars are also arranged at positions parallel to each other rather than on the same extension line. Accordingly, the elastic member 20 can be rotated in the horizontal direction along with the elastic movement by reducing the overall length of the elastic member 20 and spacing the action point of the lateral force applied to each slide bar. Each slide bar 24 is mounted in a state in which some regions are inserted into the body portion 21 and the remaining regions are exposed to the outside of the body portion. One end exposed to the outside of 21) is referred to as a 'first end', and one end mounted inside the body part is referred to as a 'second end'. Therefore, each slide bar 24 is in a state where the second end is mounted to the guide of the body portion 21 and supported by each spring 28.

As described above, when the body portion 21 is provided with a guide groove 22 in the flat surface of the lower plate or the bottom of the upper plate as a guide, the bottom face or plane of each slide bar 24, that is, facing the guide groove. The surface includes a coupling protrusion 25 protruding to be fitted into the guide groove. Coupling protrusion 25 is formed to be the same width as the guide groove (22). Therefore, as the engaging protrusion 25 moves along the guide groove 22, the slide bar 24 may move in the lateral direction, and the range in which the slide bar moves may be limited to the length of the guide groove. That is, when the slide bar 24 is inserted into the inside of the body portion 21 as much as possible or when exposed to the outside of the body portion as much as possible, the engaging projection 25 is caught by the guide groove 22 to limit the moving range of the slide bar. In this way, the elastic member 20 may be excessively contracted to prevent the spring 28 and the like from being damaged, and the slide bar may be prevented from being separated from the body portion.

On the other hand, as described above, when the body portion 21 includes two guide grooves 22 with respect to one slide bar 24, each slide bar also has two engaging projections 25 fitted in the guide grooves. Of course it includes. In addition, each slide bar 24 includes a coupling groove 26 extending in the transverse direction elongated from the second end in the space between the two engaging projections 25. Coupling groove 26 is formed so that the partition wall 23 of the body portion 21 is fitted and coupled to form the same width as the partition wall.

In addition, the first end of each slide bar 24 exposed to the outside of the body portion 21 is to include a rotary protrusion 27 protruding to couple the elastic member 20 to the device. Preferably, the cross section of the rotating protrusions 27 may serve as a rotating shaft so as to form a circular shape.

The spring 28 is mounted to the body portion 21 and supports the second end of the slide bar 24 inserted in the body portion to allow the slide bar to elastically move in the transverse direction. The spring 28 is bent in a zigzag shape on the same horizontal plane. That is, each spring 28 is formed by bending an elongated elastic body in a zigzag form at regular intervals on the same extension line in the horizontal direction. Therefore, since the thickness of the spring 28 becomes the thickness of the elastic body, the space occupied by the spring can be greatly reduced. A plurality of springs 28 are provided to correspond to each slide bar 24, and to increase the elastic force of the elastic member 20, a plurality of springs are provided for each slide bar. Preferably, two springs 28 are provided for each slide bar 24, and each spring is mounted in a space separated by the partition wall 23 of the internal space of the body portion 21.

Spring 28 is generally made of a metal material to make a known spring or may be produced by injecting a plastic material such as POM, PC, urethane-based hytrel (hytrel). In addition, the spring 28 may have a structure of a leaf spring.

Figure 4 is a plan view of the elastic member according to the present invention, Figure 4 (a) is a view showing a state in which the elastic member according to the present invention is relaxed, Figure 4 (b) is a contracted elastic member according to the present invention It is a figure which shows the state. 4 (a) and 4 (b), each component part provided in the body part is illustrated by dotted lines for convenience of description.

As shown in FIG. 4 (a), each spring 28 is maximized in the state where no external force is applied to the elastic member 20, that is, when no pressure in the transverse direction is applied to each slide bar 24. It is relaxed, and the engaging projection 25 of each slide bar will be in the state caught by the edge part of the guide groove 22. As shown in FIG. Therefore, each slide bar 24 is exposed to the outside of the body portion 21 to the maximum, the elastic member 20 is the longest relaxed state, each slide bar has a second end by each spring 28 Since it is supported, the relaxed state of the elastic member can be stably maintained.

On the other hand, as shown in Figure 4 (b), when the transverse pressure is applied to each slide bar 24 of the elastic member 20, each slide bar is inserted into the body portion 21, each spring ( 28). Specifically, each slide bar 24 is gradually inserted into the body portion while the engaging protrusion 25 moves inwardly of the body portion 21 along each guide groove 22. Therefore, the entire length of the elastic member 20 is in a contracted state where the length becomes shorter.

5 is a cross-sectional view of the elastic member according to the present invention, which is a cross-sectional view taken along the line BB ′ of FIG. 2. As shown in FIG. 5, the thickness of the upper plate of the body portion 21 of the elastic member 20 according to the present invention is 't4', the thickness of the spring 28 is 't5', and the thickness of the lower plate is 't6'. In this case, the total thickness 'T2' of the elastic member becomes 't4 + t5 + t6'. At this time, since the spring 28 has a shape in which the elongated elastic body is bent in a zigzag shape on the same horizontal plane, the thickness 't5' of the spring becomes the thickness of the elastic body. Therefore, the thickness of the spring can be greatly reduced as compared with the conventional spring 28, in which the elastic body is spirally wound, and the size of the space occupied by the spring, that is, the height can be greatly reduced. Therefore, the overall thickness T2 of the elastic member 20 can be greatly reduced to make it small and slim, and the mechanism or device to which the elastic member is applied can be made slim.

6 is a diagram illustrating a state of use of the elastic member according to the present invention, in which the elastic member according to the present invention is applied to a sliding member of a sliding mobile phone. Specifically, FIG. 6 (a) is a plan view showing a state where the upper slider of the sliding member is lifted up along the lower slider, and FIG. 6 (b) shows a state where the upper slider of the sliding member is lowered along the lower slider. One floor plan.

The sliding member 100 is a device for opening and closing the handset by moving up and down between the handset provided with the LCD screen and the voice output unit of the sliding mobile phone and the call unit provided with the key button and the voice input unit. The sliding member 100 has a flat plate-shaped lower slider 30, an upper slider 40 mounted on the lower slider and sliding up and down along the lower slider, and both ends of the lower slider and the upper slider are respectively mounted on the upper and lower sides of the upper slider. It includes an elastic member 20 for supporting the directional sliding. The lower slider 30 is coupled to the receiver of the sliding cell phone and the upper slider 40 is coupled to the communication part of the sliding cell phone. Therefore, FIG. 6 (a) shows a state in which the receiver of the sliding cellular phone is lowered to close the talk section, and FIG. 6 (b) pushes the receiver to raise the talk section. On the other hand, the left and right sides of the lower slider 30 may be equipped with a rail shaft (not shown) to smoothly move up and down while the upper slider 40 is coupled to the lower slider. In addition, the rotary groove 31 penetrated / recessed so that the rotary protrusion 27 of the elastic member 20 can be fitted into a predetermined distance from one side of the left and right sides of the lower slider 30 and the upper slider 40. 41 is formed to face each other, and the rotation groove and the rotation projection are preferably formed in a circular shape so that the rotation projection 27 of the elastic member 20 coupled to the rotation groove according to the movement of the upper slider, respectively.

The operation of the elastic member 20 according to the operation of the sliding member 100 will be described below.

When the user raises the receiver in a state where the receiver is lowered, that is, in a state in which the sliding cellular phone is closed (Fig. 6 (a)), the upper slider 40 is led by the receiver and descends along the lower slider 30. At this time, the distance between the rotary grooves 31 and 41 of the upper slider 40 and the lower slider 30 gradually decreases, and a force for compressing both slide bars 24 of the elastic member 20 is applied. Therefore, each slide bar 24 is pushed into the body portion 21 to compress the spring 28 to reduce the length of the elastic member 20. In addition, the user is resisted to raise the handset by the elastic force of the spring, it is possible to prevent the upper slider 40 from moving suddenly. The distance between the rotary grooves 31 and 41 of the upper slider 40 and the lower slider 30 is the shortest when the intermediate point, i.e. both rotary grooves are located on the same horizontal line, at which time the spring 28 is maximally compressed. do.

However, when the upper slider 40 passes through the intermediate point, the distance between the two rotary grooves 31 and 41 gradually increases, so that the external force applied to both slide bars 24 of the elastic member 20 is also reduced. Thus, the slide bar 24 inserted in the body portion 21 is pushed out by the restoring force of the spring 28. Therefore, when the upper slider 40 is pushed down to an intermediate point, the upper slider is automatically lowered while the length of the elastic member 20 is increased by the restoring force of the spring 28, so that the upper slider is stably moved by the spring. Impact can be prevented. After the upper slider 40 is completely lowered, the engaging protrusion 25 of the slide bar 24 is caught by the guide groove 22 of the body portion 21 to prevent the slide bar from escaping from the body portion and the upper slider is Deviation from the lower slider can also be prevented. In addition, since an external force is not applied to each slide bar 24 exposed state is supported by the spring 28, the upper slider does not move, it is possible to maintain a stable state of opening the receiver.

On the other hand, when the user pulls down the receiver in the open state of the receiver (Fig. 6 (b)), since the upper slider 40 is moved upward, the distance between the upper groove and the rotary grooves 31, 41 of the lower slider is reduced. While each slide bar 24 is pushed into the body portion 21 to compress the spring (28). In addition, when the upper slider 40 passes through the intermediate point, each slide bar 24 is pushed out by the restoring force of the spring 28 so that the upper slider is automatically raised.

6 (a) and 6 (b) illustrate an embodiment to which the elastic member 20 according to the present invention may be applied, and the elastic member according to the present invention may be applied to a mechanism / apparatus requiring a member having elastic force. Of course, it can be applied without any limitation.

The elastic member and the sliding member using the same according to the present invention have the following effects.

(1) The thickness of each spring supporting the movement of the slide bar in the lateral direction can be made thin so that the elastic member can be made small and slim. Since the spring according to the present invention consists of a shape in which the elongated elastic body is bent in a zigzag shape on the same horizontal plane, the thickness of the spring becomes the thickness of the elastic body. Therefore, the thickness of the elastic body can be greatly reduced while maintaining the elastic force as compared with the conventional spring formed by spirally wound. In addition, by reducing the space occupied by the spring in the elastic member can be configured to make the elastic member small and slim to increase its utilization, and to increase the portability by slimming the mechanism or device in which the elastic member is used.

(2) Using the guide groove and the partition wall, the slide bar can be stably coupled and the slide bar can be supported. Since the elastic member according to the present invention moves along the guide groove in a state in which the engaging protrusion of the slide bar is coupled to the guide groove, the range in which the slide bar moves can be limited to the length of the guide groove. Therefore, when the elastic member is maximally relaxed, the engaging projection is caught in the guide groove so that the slide bar no longer moves, thereby preventing the slide bar from being separated from the body portion. In addition, when the elastic member is fully contracted, the coupling protrusion is also caught by the guide groove and no longer contracts, thereby preventing the slide bar from excessively compressing the spring and causing failure of the spring and the elastic member.

(3) The total length of the elastic member can be reduced by arranging each slide bar in parallel to each other in the transverse direction. In the elastic member according to the present invention, the guide grooves on which the slide bars are mounted are arranged parallel to each other without being disposed on the same extension line in the transverse direction, thereby halving the space required for the guide grooves and the slide bar as compared with the case where the slide grooves are arranged on the same extension line. It can be reduced by about. Therefore, the length of the elastic member can be greatly reduced. In addition, since the action point of the force applied to each slide bar is different, the elastic member can rotate in the transverse direction along with the elastic movement.

(4) A high elastic force can be provided by providing a plurality of springs for each slide bar. In addition, since the external force applied to the elastic member is transmitted in a balanced manner in both directions and uniformly distributed in each spring, the elastic member can be stably and smoothly contracted and relaxed. In addition, since each slide bar moves in the opposite direction, each spring corresponding to each slide bar is forced in the opposite direction to contract and relax independently of each other, reducing the force applied to each spring by half to prevent deformation of the spring. It can maintain stable tension even in long term use. In addition, even when the force applied to the left and right of the elastic member is not balanced by balancing the elastic member, the elastic member can stably elastically move.

(5) The configuration of the guide for inducing the movement of each slide bar and the configuration of the slide bar can be freely modified, and the size of the elastic force can be freely adjusted by modifying the number of springs provided for each slide bar. Therefore, it can be easily modified in various configurations according to the size and characteristics of the device to which the elastic member is applied.

(6) When the elastic member according to the present invention is applied to the sliding member of the sliding cellular phone, the elastic member can be slidably opened and closed by supporting the sliding in the longitudinal direction of the upper slider. In particular, when the user moves the receiver, resistance is generated as much as the elastic force of the spring embedded in the elastic member, so that the receiver can be suddenly moved to prevent shock from being applied to the mobile phone. By, the receiver is automatically moved, so it is easy to use. In addition, since the thickness of the elastic member is thin, the space occupied by the elastic member in the sliding mobile phone can be greatly reduced, and the sliding mobile phone can be slimmed.

While preferred embodiments of the present invention have been described using specific terms, such descriptions are for illustrative purposes only, and it is understood that various changes and modifications may be made without departing from the spirit and scope of the following claims. You must lose.

Claims (9)

An elastic member whose length is variable by elastic force, Body portion; Two slide bars which form an elongated bar shape and are inserted into each end while facing each other at both ends of the body part and move in a lateral direction; Two guides formed in the body to mount the respective slide bars, and guide the horizontal movement of each of the slide bars; And A plurality of springs disposed in the body part to respectively support second ends of the respective slide bars inserted into the body part, Each spring, the elongated elastic body forms a zigzag shape bent at a predetermined interval on the same horizontal plane, An elastic member, characterized in that the length of the area exposed to the outside of the body portion while the slide bar is moved in the transverse direction along each guide with the second end is supported by each spring. The method of claim 1, The body portion, Elastic members, characterized in that it comprises insertion holes formed through both ends for mounting the respective slide bar. The method of claim 1, Resilient member, characterized in that the guides are arranged in parallel to each other based on the transverse direction facing each other. The method of claim 1, Each guide above, An elastic member, characterized in that it comprises one or more guide grooves are formed recessed in the transverse direction in at least one of the bottom surface of the upper plate and the lower plate of the body portion. The method of claim 4, wherein Each slide bar above, An elastic member, characterized in that it comprises one or more engaging projections protruding in the same width as each of the guide grooves on the surface facing each of the guide grooves and fitted into the guide grooves. The method of claim 5, wherein The guide includes two guide grooves for each of the slide bars, and each of the slide bars includes two of the engaging protrusions. The body portion includes a partition wall protruding elongated in the transverse direction toward the interior of the body portion in the space between the two guide grooves, Each of the slide bars includes a coupling groove formed in the space between the two engaging projections extending in the transverse direction from the second end of the slide bar in the same width as the partition wall, through which the partition walls fit and engage. An elastic member characterized by the above-mentioned. The method of claim 6, The elastic member, Two springs for each of the slide bars, And each spring is disposed in an inner space of the body part separated by the partition wall. The method of claim 1, Each slide bar above, An elastic member, characterized in that it comprises a rotating projection each having a circular cross section protruding to the first end. A sliding mobile phone including a receiver to which a liquid crystal screen is installed and a telephone to which a key button is installed, and a sliding mobile phone sliding and opening the receiver, wherein the mobile phone sliding member is provided between the receiver and the telephone to slide the receiver. A lower slider mounted to any one of the communication part and the sign language part, and having a flat plate shape, the lower slider including a rotation groove penetrating circularly inside a predetermined distance from the first side surface; A second side mounted on the other one of the communication unit and the receiver unit, and mounted to the lower slider while surrounding both sides of the lower slider, and sliding up and down along the lower slider, and facing the first side of the lower slider; An upper slider including a rotating groove formed in a circular shape inwardly from a distance from the upper slider; And A length variable by an elastic force, the elastic member mounted between the lower slider and the upper slider to support sliding of the upper slider, The elastic member, Body portion; It forms an elongated bar shape and is inserted into each of the end portions of the body portion facing each other and is moved in the lateral direction. The cross section is formed in a circular shape at the first end exposed to the outside of the body portion to protrude and form the upper slider and the lower portion. Two slide bars each comprising a rotational projection respectively engaged with each of the rotation grooves of the slider; Two guides formed in the body to mount the respective slide bars, and guide the horizontal movement of each of the slide bars; And A plurality of springs disposed in the body part to respectively support second ends of the respective slide bars inserted into the body part, Each spring, the elongated elastic body forms a zigzag shape bent at a predetermined interval on the same horizontal plane, And each of the slide bars moves in a transverse direction along the guides with the second end supported by the respective springs to vary the length of the area exposed to the outside of the body portion.

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