WO2005076487A1

WO2005076487A1 - Slider for connecting a calling part with a receiving part of a mobile phone in sliding way

Info

Publication number: WO2005076487A1
Application number: PCT/KR2005/000303
Authority: WO
Inventors: Jong Chul Choo
Original assignee: Jong Chul Choo
Priority date: 2004-02-03
Filing date: 2005-02-02
Publication date: 2005-08-18

Abstract

A prior mobile phone may be applied with a certain load shock while the mobile phone is open and closed, since a tension spring is used for a sliding operation thereof. Furthermore, there is a problem of causing noise and a separation during a vertical sliding of the phone, and the mobile phone may malfunction due to a disconnection of the tension spring, shortening a life of the mobile phone with frequency defects. To solve the above problem, a slider for connecting a calling part with a receiving part of a mobile phone in accordance with the present invention connects the calling part with the receiving part of the mobile phone in sliding way, which supports a sliding opening/closing operation of the receiving part and the calling part, being installed on a sliding mobile phone for opening/closing by mutually sliding the receiving part where an LCD screen is disposed and the calling part where number keys are installed, comprising: a lower slider mounted on either the receiving part or the calling part; an upper slider mounted on the rest one of the receiving part and the calling part, and sliding in vertical direction along the lower slider by being mounted on top of the lower slider while covering both sides of the lower slider and rail shafts together; and an elastic member whose overall length is varied by a predetermined elastic force, and supporting the vertical sliding of the upper slider since both sections thereof are coupled with a first fixing groove and a second fixing groove, respectively. At this time, the lower slider comprises the rail shafts mounted as covering both sides of the lower slider, and the first fixing groove pierced on an inner side by being separated from a first side at certain intervals. The upper slider includes the second fixing groove pierced on an inner side by being separated from a second side opposed to the first side of the lower slier at certain intervals.

Description

Description SLIDER FOR CONNECTING A CALLING PART WITH A RECEIVING PART OF A MOBILE PHONE IN SLIDING WAY Technical Field

[1] The present invention generally relates to a slider for connecting a calling part with a receiving part of a mobile phone in sliding way, and more specifically to a slider for connecting a calling part with a receiving part of a mobile phone which opens and closes the calling part and the receiving part since each section is connected to the calling part and the receiving part of the sliding mobile phone. Background Art

[2] A prior mobile phone has employed a folder structure of being opened and closed by installing a hinge between a receiving part where an LCD screen is disposed and a calling part where key buttons are comprised. Recently, a mobile phone(sliding mobile phone) which pushes up the receiving part where the LCD screen is disposed such that the user can make a call has been widely used. The prior sliding mobile phone is illustrated in Fig. 1 as an example.

[3] Fig. 1 is a diagram showing one example of the prior sliding mobile phone. Referring to Fig. 1, the prior sliding mobile phone consists of a receiving part(l) where an LCD screen is installed and a calling part(5) where number keys of the mobile phone are disposed.

[4] The prior mobile phone embeds a pigtail-shaped tension spring inside to push up the receiving part. At this time, when the receiving part(l) of the mobile phone is pushed up, the receiving part(l) comprising the LCD screen may be suddenly pushed up by tension of the spring, causing shock of giving a certain load to the mobile phone while the phone is opened/closed. Also, noise and separation problems can be produced during a vertical sliding operation. And, if the tension spring is cut off, the mobile phone may malfunction, thereby shortening a life of the mobile phone. Disclosure of Invention Technical Problem

[5] It is therefore an object of the present invention to provide a slider for connecting a calling part with a receiving part of a mobile phone in sliding way, in order to increase efficiency of a manufacturing process and prevent an upper slider from instantly moving when the receiving part of the mobile phone is pushed up or down. In other words, the present invention can prevent a sliding end section, that is, a part where the upper slider stops from being damaged by shock applied to the receiving part, which is caused when the upper slider instantly moves. Furthermore, it is possible to prevent the upper slider from being separated from a lower slider when the upper slider moves in vertical direction. Thus, the slider in accordance with the present invention can increase efficiency of a manufacturing process by fabricating the upper slider in insert molding method, while realizing a product completion. Technical Solution

[6] In order to accomplish the above object, the slider for connecting the calling part with the receiving part of the mobile phone in sliding way according to the present invention connects the calling part with the receiving part of the mobile phone which supports a sliding- way opening/closing of the receiving part and the calling part by being installed on the sliding mobile phone opened and closed by mutually sliding the receiving part where an LCD screen is disposed with the calling part where number keys are installed, comprising: a lower slider mounted on either the receiving part or the calling part; an upper slider mounted on the rest one of the receiving part and the calling part, and sliding in vertical direction along the lower slider by being mounted on top of the lower slider while covering both sides of the lower slider and rail shafts together; and an elastic member whose overall length is varied by a predetermined elastic force, and supporting the vertical sliding of the upper slider since both sections thereof are coupled with a first fixing groove and a second fixing groove, respectively. At this time, the lower slider comprises the rail shafts mounted as covering both sides of the lower slider, and the first fixing groove pierced on an inner side by being separated from a first side at certain intervals. The upper slider includes the second fixing groove pierced on an inner side by being separated from a second side opposed to the first side of the lower slier at certain intervals.

[7] Desirably, the upper slider and the lower slider employ engineering plastic materials. In addition, the first fixing groove is located at least on top of the second fixing groove in vertical direction at a horizontal extension line. In case of the rail shafts, they are formed in U shape to simultaneously cover both sides of the lower slider, being composed of a first rail shaft and a second rail shaft independently covering both sides of the lower slider. And, the elastic member includes two fixing projections formed in both sections thereof, which are coupled with the first fixing groove and the second fixing groove and have circular sections.

[8] As a first embodiment, the elastic member comprises: a first bar being in pipe shape pierced inside, opening a first section thereof, and intercepting a second section; a second bar moving in horizontal direction since a first section thereof is inserted to be coupled with the opened first section of the first bar; and a spring supporting the first section of the second bar by being mounted inside the first bar. The second section of the first bar and a second section of the second bar are combined with the first fixing groove and the second fixing groove, respectively. In this case, the elastic member further comprises a hooking end for preventing the second bar from being isolated in a coupled part of the first bar and the second bar.

[9] As a second embodiment, the elastic member comprises: more than one first supporting pipe being in pipe shape pierced inside, opening first sections thereof, and intercepting second sections; more than one first insertion bar moving in horizontal direction since first sections thereof are inserted to be coupled with the opened first sections of the first supporting pipes, respectively; more than one second supporting pipe being in pipe shape pierced inside, opening first sections thereof, and intercepting second sections; more than one second insertion bar moving in horizontal direction since first sections thereof are inserted to be coupled with the opened first sections of the second supporting pipes, respectively; plural springs mounted inside the first supporting pipes and the second supporting pipes, respectively, and supporting the first sections of the first insertion bars and the second insertion bars, respectively; and a cover member covering outer circumferences of the first supporting pipes and the second supporting pipes, and mutually fixing the first supporting pipes and the second supporting pipes, respectively. The first supporting pipes and the second supporting pipes are disposed in turns, while each corresponding section of the first and second supporting pipes is disposed in opposite direction. At this moment, the elastic member further comprises a first cap portion for mutually connecting exposed second sections of the first insertion bars and a second cap portion for mutually connecting exposed second sections of the second insertion bars. The first cap portion and the second cap portion are combined with the first fixing groove and the second fixing groove, respectively. Moreover, hooking ends for preventing the first insertion bars and the second insertion bars from being isolated are further comprised in combined parts of the first supporting pipes and the first insertion bars and coupled parts of the second supporting pipes and the second insertion bars.

[10] As a third embodiment, the elastic member comprises: two rods being in long stick shape; plural springs combined with first sections of each rod; a body portion combined with each rod, and consisting of two guide portions caved in reversed phase of each rod on an upper side; and a cover portion covering the guide portions by being mounted on top of the body portion. Each guide portion is disposed opposite to each other, and crosses together in horizontal direction. And, each rod moves in horizontal direction along each guide portion while the first sections thereof are supported by each spring. At this moment, the first sections of each rod are in trident shape consisting of three branches, while each spring is coupled with concave portions formed among the branches of the first sections of each rod. A middle branch of the three branches of the first sections in each rod is at least longer than the right/left branches. Also, it is possible for the first sections of each rod to be in fork shape having two branches and for each spring to be coupled with each branch of the first sections of each rod. Every rod is combined with the first fixing groove and the second fixing groove, and includes fixing shafts whose sections are round in the second sections, respectively. Hooking ends for preventing the rods from being separated are further comprised in coupled parts of every rod and the body portion.

[11] As a fourth embodiment, the elastic member comprises: more than one first elastic part having a predetermined elastic force, and being in long stick shape; and more than one second elastic part having a predetermined elastic force in long stick shape, and being disposed opposite to each one of the first elastic parts. The first elastic parts and the second elastic parts are in mutual radial type, and both sections thereof are coupled together.

[12] Meanwhile, the upper slider comprises: a frame forming an external shape of the upper slider, and including a separation preventing end extended to a lower area of the second fixing groove and the lower slider; and two insert members molded in insert molding method under both side sections of the frame, and including rail shaft insertion grooves caved in such that the rail shafts can be mounted on opposite sides. In this case, the insert members are made of engineering plastic materials, while both side sections of the frame are bent in TJ¹ shape.

[13] As another embodiment, to achieve the above object, a slider for connecting a calling part with a receiving part of a mobile phone in sliding way according to the present invention connects the calling part with the receiving part of the mobile phone which supports a sliding-way opening/closing of the receiving part and the calling part by being installed on the sliding mobile phone opened and closed by mutually sliding the receiving part where an LCD screen is disposed with the calling part where number keys are installed, comprising: two lower sliders mounted on either the receiving part or the calling part, and being in long bar shape; and an upper slider mounted on the rest one of the receiving part and the calling part, and sliding in vertical direction along the lower sliders by being mounted on top of the lower sliders while covering each rail shaft. The lower sliders include the two rail shafts mounted as covering the lower sliders and consisting of a first slider stopper and a second slider stopper caved in predetermined depth at an upper section and a lower section of a first side, which are opposite to each other. The upper slider is composed of: a groove covering the rail shafts by being caved in under the upper slider; a spring mounted inside a second side opposed to the first side of the rail shafts among inner sides of the groove; and a ball supported by the spring such that a portion of the ball is exposed to the second side. Brief Description of the Drawings [14] The invention, together with further aspects and advantages thereof, may best be understood by reference to the following description taken in conjunction with the accompanying drawings in which: [15] Fig. 1 is a diagram showing one example of a sliding mobile phone of prior art;

[16] Fig. 2 is a perspective view of a first embodiment of a mobile phone slider in accordance with the present invention; [17] Fig. 3 is an exploded perspective view of a first embodiment of a mobile phone slid er in accordance with the present invention; [18] Fig. 4 is a sectional view of a first embodiment of an elastic member in accordance with the present invention; [19] Fig. 5 is a diagram for illustrating an operational principle of a first embodiment of a mobile phone slider in accordance with the present invention; [20] Fig. 6 is a diagram showing a second embodiment of a rail shaft in accordance with the present invention; [21] Fig. 7 is a diagram showing an embodiment of a mobile phone slider where various types of rail shafts are applied according to the prevent invention; [22] Fig. 8 is a diagram for illustrating a second embodiment of an upper slider in accordance with the present invention; [23] Fig. 9 is a diagram showing a second embodiment of an elastic member in accordance with the present invention; [24] Fig. 10 is an exemplary diagram showing that a second embodiment of an elastic member in accordance with the present invention is used; [25] Fig. 11 is a perspective view showing a second embodiment of a mobile phone slider in accordance with the present invention; [26] Fig. 12 is an exploded perspective view of a second embodiment of a mobile phone slider in accordance with the present invention; [27] Fig. 13 is a diagram showing a third embodiment of an elastic member in accordance with the present invention; [28] Fig. 14 is a diagram for illustrating an operation of a third embodiment of an elastic member in accordance with the present invention; [29] Fig. 15 is a perspective view showing a third embodiment of a mobile phone slider in accordance with the present invention; [30] Fig. 16 is an exploded perspective view of a third embodiment of a mobile phone slider in accordance with the present invention; [31] Fig. 17 is a diagram for illustrating a fourth embodiment of an elastic member in accordance with the present invention; [32] Fig. 18 is a perspective view showing a fourth embodiment of a mobile phone slider in accordance with the present invention; [33] Fig. 19 is a diagram showing a fifth embodiment of a mobile phone slider in accordance with the present invention;

[34] Fig. 20 is a diagram for illustrating a configuration of a fifth embodiment of a mobile phone slider in accordance with the present invention;

[35] Fig. 21 is a diagram showing a sixth embodiment of a mobile phone slider in accordance with the present invention;

[36] Fig. 22 is a diagram showing a seventh embodiment of a mobile phone slider in accordance with the present invention;

[37] Fig. 23 is a diagram showing an eighth embodiment of a mobile phone slider in accordance with the present invention; and

[38] Fig. 24 is a diagram showing a ninth embodiment of a mobile phone slider in accordance with the present invention. Mode for the Invention

[39] The present invention will now be described in detail with reference to exemplary preferred embodiments as illustrated in the accompanying drawings.

[40] Fig. 2 is a perspective view of a first embodiment of a mobile phone slider in accordance with the present invention, Fig. 2(a) is a perspective view illustrating a state before an upper slider(30) in accordance with the present invention is pushed up, and Fig. 2(b) is a perspective view showing a state that an upper slider(30) is pushed up along a lower slider(20). Referring to Fig. 2, the lower slider(20) of the mobile phone slider in accordance with the present invention is fixed to a mobile phone calling part(5) where a voice input portion having mobile phone key buttons is located, and the upper slider(30) is fixed to a receiving part(l) where a voice output portion having an LCD screen is located. Meanwhile, it is needless to say that the upper slider(30) in accordance with the present invention can be fixed to the mobile phone calling part where the voice input portion having the mobile phone key buttons is installed, while the lower slider(20) is fixed to the receiving part(l) where the voice output portion having the LCD screen is installed.

[41] Hereinafter, the present invention will be described by a mobile phone model where rail shafts(22a,22b) are inserted into both right/left sides of the lower slider(20) to move in vertical direction while the lower slider(20) is coupled with the upper slider(20). Furthermore, the upper slider(30) vertically moves while both side ends thereof are inserted into the rail shafts(22a,22b), respectively. Thus, the rail shafts(22a,22b) function as rails to move the upper slider. On the other hand, an elastic member(40) is installed to support the movement of the upper slider(30). The elastic member connects the lower slider with the upper slider since each section thereof is combined with the lower slider and the upper slider. [42] Like shown in Fig. 2(a) and Fig. 2(b), the upper slider(30) is located under the lower slider(20) if a user does not raise the receiving part(l), while both side sections of the upper slider(30) are lifted up along the rail shafts(22a,22b) of the lower slider(20) to expose the calling part(5) if the user raises the receiving part. On this occasion, one end of the elastic member(40) is fixed to the lower slider(20) while the other end moves along the upper slider(30), thereby supporting the movement of the upper slider.

[43] Fig. 3 is an exploded perspective view of a first embodiment of a mobile phone slider in accordance with the present invention, and Fig. 4 is a sectional view of a first embodiment of an elastic member in accordance with the present invention. Fig. 4(a) is a sectional view showing a state that the first embodiment of the elastic member in accordance with the present invention is contracted under pressure, while Fig. 4(b) is a sectional view showing a state that the first embodiment of the elastic member in accordance with the present invention is relaxed by releasing the pressure.

[44] Like shown in Fig. 3, rail shafts(22a,22b) functioning as rails are fixed to right/left sides of a lower slider(20) in accordance with the present invention. To do this, both sections of the rail shafts are formed in loop shape to be combined with both sections of right/left sides of the lower slider. Also, a fixing groove(24) is formed on one of the right/left sides of the lower slider(20) to insert one section(46) of a first embodiment(40) of the elastic member.

[45] An upper slider(30) in accordance with the present invention is mounted on the lower slider(20), and more specifically, both side sections thereof are mounted as covering the right/left rail shafts(22a,22b). Therefore, a groove formed in vertical direction is comprised such that both sides of the lower slider(20) and the rail shafts(22a,22b) can be inserted under both side sections of the upper slider. And, a fixing groove(34) is formed on one of the right/left sides of the upper slider(30) such that the rest section(48) of the first embodiment(40) of the elastic member can be inserted.

[46] At this time, each of the fixing grooves(24,34) of the lower slider(20) and the upper slider(30) is formed on opposite inner sides. That is, when the fixing groove(24) of the lower slider is located on the left, the fixing groove(34) of the upper slider(30) is formed on the right. The opposite case is the same. In addition, each of the fixing grooves(24,34) is not formed at the same extension line in horizontal direction, and it is desirable that the fixing groove(24) of the lower slider(20) is formed at least upper than the fixing groove(34) of the upper slider(30) in vertical direction. It is because to raise the upper slider(30) to the top from the bottom. This will be easily understandable in Fig. 5 as follows.

[47] In the meantime, the upper and lower sliders(20,30) in accordance with the present invention are made of engineering plastic materials. Engineering plastics refer to high- intensity plastics used for industrial, structural materials, being stronger than steel, more malleable than aluminum, and are high-functioning resins with high-polymer structure having a stronger chemical resistance than gold and silver. Plastics show different performance and different features according to chemical structures thereof. They are mainly separated into 5 kinds such as polyamide, polyacetal, polycarbonate, PBT(polyester resin), and denatured PPO(polyphenylene oxide). Unlike prior low- molecule plastics having tends of, hundreds of molecular weight, the above plastics are high-polymer materials in common, having hundreds and thousands of, millions of molecular weight.

[48] Accordingly, the above plastics are excellent in impact resistance, corrosion resistance, heat resistance, cold resistance, chemical resistance, and electric insulating properties as well as strong intensity and elasticity, being used for various fields including cameras, clock parts, airplane structural materials, and electronics as well as home supplies and miscellaneous goods. Meanwhile, to take the lead, FRPs(Fiber Reinforced Plastics) have been developed to show their stronger properties as complex materials, by mixing the engineering plastics with glass fiber or carbon fiber.

[49] If the upper and lower sliders(30,20) are made of iron-containing materials, radio receiving/transmitting functions may be affected. However, when the engineering plastics are used, radio interference does not occur during the radio receiving/ transmitting since the plastics do not contain any iron components. At the same time, mass production is available because they are produced through injection molding method. For example, with one case of molds, millions to more than two millions of mass productions are possible. If aluminum is used like prior art, mass production may be difficult owing to material features since extruding or drawing, die casting molding operations are conducted. For instance, with one case of molds, only hundred thousand to two hundred thousand productions are enabled, causing a lot of investment cost.

[50] Moreover, in case aluminum is used, a bending or transformations may easily occur by external shock, particularly when being distorted or dropped, even though there is not so big difference in a fixed state. However, when the engineering plastics are used, an excellent restoring force can be obtained since they have more elasticity than iron, even though external shock or distortion or any impact is applied, thereby reducing a defective proportion caused by product transformations.

[51] In the present invention, only one of the upper slider(30) and the lower slider(20) can be made of the engineering plastics, while the rest one is fabricated with aluminum or stainless.

[52] Like shown in Fig. 4(a) and Fig. 4(b), the first embodiment(40) of the elastic member in accordance with the present invention consists of two bars(42,44) having different diameters, and wherein one section of the second bar(44) having a smaller diameter is inserted into one open section of the first bar(42) having a bigger diameter. And, a spring(43) is comprised inside the first bar(42) to support the one section of the second bar(44) inserted inside the first bar. Meanwhile, a hooking end is comprised in a coupled part of the first bar and the second bar, so that the second bar(44) is not separated from the first bar(42). Accordingly, when a portion of the second bar(44) is inserted into the first bar(42), an overall length of the first embodiment(40) of the elastic member changes. Such a first embodiment of the elastic member is called 'pogo pin'.

[53] Besides, the rest sections(46,48) of the first bar(42) and the second bar(44), which are not coupled together, are inserted into each of the fixing grooves(24,34) of the lower slider and the upper slider, respectively. At this point, since both sections(46,48) of the first embodiment of the elastic member are inserted into each fixing groove(24,34) without being fixed, they can function as rotational shafts rotating along the fixing grooves. Desirably, coupled parts of each fixing groove(24,34) and both sections(46,48) of the first embodiment of the elastic member are formed in round shape.

[54] In addition, an elastic force of the first embodiment(40) of the elastic member is not affected, even though the upper slider(30) is fully lifted down(in a state that the sliding mobile phone is fully closed) or the upper slider is fully lifted up (in a state that the sliding mobile phone is fully open). That is, positions of the fixing grooves in the upper slider and the lower slider are controlled, so that external force(pressure) cannot be applied to the spring of the first embodiment of the elastic member while the upper slider is fully lifted up or down. More specifically, when the upper slider is lifted up or down, a distance between the fixing grooves of the upper slider and the lower slider becomes an overall length of the first embodiment(40) without any pressure.

[55] Fig. 5 is a diagram for illustrating an operational principle of a first embodiment of a mobile phone slider in accordance with the present invention. Like shown in Fig. 5, when an upper slider(30) of the mobile phone slider in accordance with the present invention is pushed up, the upper slider rises along rail shafts(22a,22b) of a lower slider(20). At this moment, the one section(46) of the first embodiment(40) of the elastic member is rotated while being inserted into the fixing groove(24) of the lower slider(20), and the rest section(48) is raised up along the fixing groove(34) of the upper slider(30). Since a distance between the fixing grooves(24,34) gets shorter than the length of the first embodiment(40) of the elastic member while the upper slider(30) is pushed up until a middle spot, a portion of the second bar(44) is gradually inserted into the first bar(42) to compress the spring(43) of the first bar. As a result, it can prevent the upper slider from being suddenly pushed up. [56] However, if the upper slider(30) passes through the middle spot, the distance between the two fixing grooves(24,34) gradually gets longer. Thus, the second bar(44) inserted into the first bar(42) is gradually ejected by being pushed by the spring(43), and the length of the first embodiment(40) of the elastic member gets longer little by little. Therefore, if the upper slider is pushed up until the middle spot, it is automatically pushed up by a force of the spring(43), thereby preventing an excessive shock from being applied to the receiving part(l) since it is stably pushed up by the spring. Also, because the second bar(44) is not separated from the first bar(42) by the hooking end, the upper slider(30) can go up until a certain position, not to be separated from the lower slider(20).

[57] On the other hand, even when the upper slider(30) is lifted down, the spring(43) is compressed while the first embodiment(40) of the elastic member gets shorter until the middle spot. And, if the upper slider passes through the middle spot, the first embodiment(40) of the elastic member is extended up to an original length by a restoring force of the spring, thereby automatically lifting down the upper slider. Thus, it is possible to prevent the upper slider from being suddenly lifted down or separated from the lower slider, and to prevent an instant shock from being applied to the receiving part(l).

[58] Fig. 6 is a diagram showing a second embodiment of a rail shaft in accordance with the present invention. Like shown in Fig. 6, the second embodiment(50) of the rail shaft in accordance with the present invention is formed in U shape for connecting upper ends of right/left shafts.

[59] Fig. 7 is a diagram showing an embodiment of a mobile phone slider where various types of rail shafts in accordance with the present invention are applied. Specifically, Fig. 7(a) shows an embodiment where rail shafts(22a,22b) in accordance with the present invention are applied, while Fig. 7(b) shows an embodiment where the second embodiment(50) of a rail shaft is applied. Meanwhile, Fig. 7(a) and Fig. 7(b) illustrate the embodiments where only one embodiment(40) of the elastic member in accordance with the present invention is mounted.

[60] Fig. 8 is a diagram for illustrating a second embodiment of an upper slider in accordance with the present invention, Fig. 8(a) is a perspective view showing a configuration of the second embodiment(30) of the upper slider, and Fig. 8(b) is a sectional view showing a state that the second embodiment of the upper slider is combined with a lower slider(20). The second embodiment of the upper slider in accordance with the present invention will be described as follows in reference to Fig. 8.

[61] The second embodiment(30) of the upper slider in accordance with the present invention comprises a frame(32) forming an external frame of the upper slider, and insert members(36) molded in insert molding method on an inner side of the frame.

[62] The frame(32) in accordance with the present invention has both sections bent in '□' shape, and is formed with a fixing groove(345) pierced such that the rest section of the elastic member(40) can be inserted on an inner side separated at certain intervals from one of right/left sides of the frame. It is desirable to make the frame(32) of stainless steel materials to prevent transformations or corrosion and reduce a bending or thickness while maintaining insert molding properties and intensity of the insert members. Like shown above, the fixing groove(34) is formed on an inner side opposite to the fixing groove(24) of the lower slider(20), and each of the fixing grooves(24,34) should not be formed at the same extension line in horizontal direction.

[63] The insert members(36) in accordance with the present invention are configuration parts molded by the insert molding method on inner sides of both side sections of the frame(32), particularly the sections bent in '□' shape in both side sections of the frame, forming rail shaft insertion grooves(37) caved in such that rail shafts(22a,22b,50) can be inserted on opposed sides. It is desirable to make the insert members(36) of engineering plastic materials. In the meantime, separation preventing ends(38) are formed under the insert members(36) by lower areas of the frame(32) being extended in opposed direction. The separation preventing ends(38) cover both side sections of the lower slider when the lower slider is coupled with the second embodiment of the upper slider, preventing the second embodiment of the upper slider from being isolated from the lower slider.

[64] Like shown above, the second embodiment(30) of the upper slider forms the insert members(36) by molding the engineering plastics in the insert molding method on the inner sides of both side sections of the frame(32) made of stainless materials. So, it can enhance manufacturing process efficiency of the second embodiment of the upper slider, and increase a product completion. If the entire second embodiment(30) of the upper slider is molded with metal materials such as aluminum, precise configuration parts such as the rail shaft insertion grooves(37) and the separation preventing ends(38) should be made, resulting in an increase of process difficulty. As a result, mass production may be impossible. In addition, despite the fact that the rail shaft insertion grooves(37) should be perfectly adhered to the rail shafts(22a,22b,50), the rail shaft insertion grooves may be separated from the rail shafts owing to process shortcomings, deteriorating product completion while increasing a defective proportion. Furthermore, since the rail shaft insertion grooves and the rail shafts are made of metal materials, noise can be produced when the second embodiment of the upper slider vertically slides down due to metal friction, and serious abrasion may occur. On the contrary, if the insert members(36) are molded by the insert molding method according to the present invention, they can be easily fabricated, remarkably increasing productivity and precisely manufacturing the rail shaft insertion grooves(37) in exact size and shape because the insert members are molded by the engineering plastic molding method. Accordingly, the rail shafts(22a,22b) are contacted with the rail shaft insertion grooves(37), thereby enhancing product completion. Also, since the rail shafts made of metal materials are contacted with the rail shaft insertion grooves made of engineering plastics, noise or abrasion problems may be tremendously resolved. Besides, since the insert members(36) are molded on the inner sides of both side sections of the frame after the frame(32) is molded, the separation preventing ends(38) can be formed without another molding process.

[65] Fig. 9 is a diagram showing a second embodiment of an elastic member in accordance with the present invention, Fig. 9(a) is a sectional view of the second embodiment of the elastic member in accordance with the present invention, and Fig. 9(b) is a perspective view of the second embodiment of the elastic member in accordance with the present invention. Like shown in Fig. 9(a) and Fig. 9(b), the second embodiment of the elastic member in accordance with the present invention forms a certain type that the first embodiment of the elastic member shown in Fig. 4 is overlapped while crossing in plural. A configuration and an operation of the second embodiment of the elastic member in accordance with the present invention will be described as follows in reference to Fig. 9(a) and Fig. 9(b).

[66] The second embodiment(60) of the elastic member in accordance with the present invention comprises: first supporting pipes(61) mounted by springs(63) inside; first insertion bars(62) whose sections are inserted into opened sections of the first supporting pipes; second supporting pipes(64) mounted by springs(66) inside; second insertion bars(65) whose sections are inserted into opened sections of the second supporting pipes; and a cover portion(67) fixing and supporting by covering outer circumferences of the first supporting pipes(61) and the second supporting pipes(64).

[67] The first supporting pipes(61) and the second supporting pipes(64) are in pipe shape pierced inside, and wherein first sections thereof are open while the rest second sections are intercepted. The first supporting pipes(61) and the second supporting pipes(64) have the same configurations, and are disposed in opposite direction. That is, the second sections of the second supporting pipes(64) are disposed in a direction that the first sections of the first supporting pipes(61) are disposed. And, the first supporting pipes(61) and the second supporting pipes(64) are disposed in turns. Thus, the supporting pipes disposed in opposite direction are arranged by turns to be adjacent to each other, thereby stably and uniformly configuring the second embodiment(60) of the elastic member. Besides, the springs(63,66) are mounted inside the first supporting pipes(61) and the second supporting pipes(64), respectively, while certain ends of the springs are supported by the intercepted second sections of the supporting pipes. [68] The first insertion bars(62) and the second insertion bars(65) are inserted to be mounted in the open first sections of the first supporting pipes(61) and the second supporting pipes(64). At this time, diameters of each insertion bar are less than those of each supporting pipe. Sections of each insertion bar(62,65) inserted into the open first sections of each supporting pipe(61,64) are supported by the springs(63,66), respectively. Therefore, each insertion bar can do elastic motions in horizontal direction along the supporting pipes, and an overall length of the second embodiment(60) of the elastic member is controlled in horizontal direction according to the motions of the insertion bars. Meanwhile, in order to prevent each insertion bar(62,65) from being separated from each supporting pipe(61,64), hooking ends(not shown) are formed in coupled parts of each supporting pipe and each insertion bar, respectively.

[69] The cover portion(67) is used to stably support the first supporting pipes(61) and the second supporting pipes(64), covering outer circumferences of each supporting pipe. In other words, the cover portion fixes the pipes by overall covering outer circumferences of parts where the first supporting pipes(61) and the second supporting pipes(64) disposed in opposite direction are overlapped with each other. So, it is available to prevent the supporting pipes(61,64) from shaking or being separated owing to movements of the insertion bars(62,65). Accordingly, an entire elastic motion of the second embodiment(60) of the elastic member can be stably maintained.

[70] More than one of the first supporting pipes(61), the first insertion bars(62), the second supporting pipes(64), and the second insertion bars(65) is comprised, wherein the exposed sections of the first insertion bars(62) are mutually connected by a first cap portion(68). In the same manner, the exposed sections of the second insertion bars(65) are mutually connected by a second cap portion(69). The first and second cap portions(68,69) apply external forces to the second embodiment(60) of the elastic member, to simultaneously move the insertion bars in the same direction by mutually fixing the adjacent insertion bars. In detail, the first cap portion(68) holds the sections of the adjacent first insertion bars(62) together, so that each of the first insertion bars can equally move when the external forces are applied. Similarly, the second cap portion(69) holds the sections of the second insertion bars(65) together, so that each of the second insertion bars can equally move at the same time by the external forces. Besides, fixing projections(68a,69a) coupled with the fixing groove(24) of the lower slider(20) and the fixing groove(34) of the upper slider(30) are comprised on a lower side of the first cap portion(68) and an upper side of the second cap portion(69), respectively. Desirably, sections of coupled parts of each fixing groove(24,34) and the fixing projections(68a,69a) of the first and second cap portions are formed in round shape, so that each fixing projection coupled with each fixing groove can individually rotate along the movement of the upper slider. [71] Each configuration part of the second embodiment(60) of the elastic member illustrated in Fig. 9 corresponds to each configuration part of the first embodiment(4) of the elastic member illustrated in Fig. 4. Specifically, the first supporting pipes(61) and the second supporting pipes(64) correspond to the first bar(42) of the first embodiment(40) of the elastic member, while the first insertion bars(62) and the second insertion bars(65) correspond to the second bar(44). In addition, the fixing projections(68a,69a) of the first cap portion(68) and the second cap portion(69) function as both sections(46,48) of the first embodiment(40) of the elastic member, thereby being inserted into each fixing groove(24,34) of the lower slider and the upper slider.

[72] In Fig. 9, even though the first supporting pipes(61), the first insertion bars(62), the second supporting pipes(64), and the second insertion bars(65) are comprised in two, the number and configurations of the supporting pipes(61,64) and the insertion bars(62,65) can be variously transformed. For instance, it is possible to comprise the first supporting pipes(61) and the first insertion bars(62) in two while comprising the second supporting pipes(64) and the second insertion bars(65) in three. Thus, an elastic force of the elastic member may be freely controlled, and an elastic motion can be stably maintained even though a high elastic force is produced. As a result, a proper type of the elastic member may be applied according to purposes of the elastic member or a degree of the necessary elastic force.

[73] Fig. 10 is an exemplary diagram showing that a second embodiment of an elastic member in accordance with the present invention is used, applying the second embodiment of the elastic member in accordance with the present invention to a mobile phone slider in accordance with the present invention. To more exactly illustrate a position of a second transformed embodiment(60) of the elastic member in Fig. 10, each fixing groove(24,34) of the lower slider and the upper slider has not been illustrated. Like shown in Fig. 10, the second embodiment(60) of the elastic member in accordance with the present invention supports a movement of the upper slider by coupling each fixing groove(24,34) of the lower slider(20) and the upper slider(30) with the fixing projections(68a,69a) of the first and second cap portions(68,69), respectively.

[74] An operation of the second embodiment of the elastic member with regards to opening and closing a sliding mobile phone will be described as follows.

[75] If the user lifts up the receiving part while the receiving part is lifted down, that is, the sliding mobile phone is closed, the upper slider(30) is lifted up along rail shafts(22a,22b,50), being led by the receiving part. At this time, the fixing projection(68a) of the first cap portion(68) in accordance with the second embodiment(60) of the elastic member coupled with the fixing groove(24) of the lower slider(20) rotates along the fixing groove. Similarly, the fixing projection(69a) of the second cap portion(69) combined with the fixing groove(34) of the upper slider(30) rotates along the fixing groove while being lifted up, being led by the upper slider. When the upper slider(30) is lifted down, a distance between the fixing grooves of the upper slider and the lower slider gets farthest, that is, the same distance as a length of the second embodiment(60) of the elastic member without pressure can be obtained. On the contrary, as the upper slider is lifted up, the distance between both fixing grooves gets shorter, causing an external force(pressure) which pushes both cap portions(68,69) of the second embodiment(60) of the elastic member. As a result, each of the first and second insertion bars(62,65) is pushed into the first and second supporting pipes(61,64), thereby compressing the springs(63,66). Thus, resistance occurs as many as elastic forces of the springs when the user lifts up a telephone receiver, preventing the upper slider(30) from being suddenly pushed up.

[76] The distance between the fixing grooves of the upper slider(30) and the lower slider(20) gets shortest in the middle spot, that is, when both fixing grooves(24,34) are located at the same horizontal line. On this occasion, the springs(63,66) are compressed to the maximum.

[77] However, if the upper slider(30) passes through the middle spot, the distance between both fixing grooves gradually gets farther, thus the external forces applied to both cap portions(68,69) of the second embodiment(60) of the elastic member are reduced. Accordingly, the first and second insertion bars(62,65) inserted into the first and second supporting pipes(61,64) are pushed out by restoring forces of the springs(63,66), causing a length of the elastic member to get longer little by little. In other words, when the upper slider(30) is pushed up until the middle spot, the length of the second embodiment of the elastic member is extended by the restoring forces of the springs(63,66), thereby automatically pushing up the upper slider. So, it is possible to stably push up the upper slider by the springs, preventing the receiving part from being affected by any shock. After the upper slider(30) is fully lifted up, the upper slider does not go up any more since the first and second insertion bars(62,65) cannot be separated from the first and second supporting pipes(61,64) thanks to the hooking ends of the second embodiment(60) of the elastic member, preventing an upper slider separation. Moreover, the exposed state of the first and second insertion bars(62,65) can be supported by each spring unless another external force is applied, preventing the upper slider from being lifted down. In the end, an opened state of the receiving part may be stably maintained.

[78] In case the user lowers the receiving part to close it, the fixing projection(69a) of the second cap portion(69) rises up along the fixing groove(34) since the upper slider(30) moves downward, so that the first and second insertion bars(62,65) are pushed in the first and second supporting pipes(61,64). Consequently, the second embodiment(60) of the elastic member gets shorter. That is to say, the springs(63,66) are compressed. In the meantime, when the upper slider(30) passes through the middle spot, the first and second insertion bars(62,65) are pushed out by the restoring forces of the springs(63,66), while the second embodiment(60) of the elastic member gradually gets longer, so that the upper slider is automatically lifted down. As a result, it is available to prevent the upper slider from being suddenly moved, and to prevent the upper slider from being separated downward the lower slider.

[79] Fig. 11 is a perspective view illustrating a second embodiment of a mobile phone slider in accordance with the present invention, Fig. 11(a) is a diagram showing a state that an upper slider(30) in accordance with the present invention is lifted up along a lower slider(20), and Fig. 11(b) is a diagram showing a state that the upper slider in accordance with the present invention is lifted down along the lower slider. Also, Fig. 12 is an exploded perspective view of a second embodiment of a mobile phone slider in accordance with the present invention, Fig. 12(a) is a diagram showing an embodiment that a rail shaft(50) is coupled from an upper part of a lower slider(20), and Fig. 12(b) is a diagram showing an embodiment that the rail shaft is coupled from a lower part of the lower slider. The second embodiment of the mobile phone slider in accordance with Fig. 11 and Fig. 12 is applied with the second embodiment of the upper slider, the second embodiment(50) of the rail shaft, and the second embodiment(60) of the elastic member. Also, Fig. 11 and Fig. 12 illustrate that the lower slider(20) is fixed to the receiving part(l) of the sliding mobile phone where an LCD screen and a voice output portion are installed, while the upper slider(30) is fixed to the calling part(5) of the sliding mobile phone where key buttons and a voice input portion are installed. Thus, Fig. 11(a) shows that the calling part is closed by lifting down the receiving part of the sliding mobile phone, and Fig. 11(b) shows that the calling part is open by pushing up the receiving part. The second embodiment of the mobile phone slider in accordance with the present invention will be described as follows in reference to Fig. 11 and Fig. 12.

[80] The second embodiment of the mobile phone slider in accordance with the present invention comprises: the lower slider(20) being in flat plate shape; the upper slider(30) vertically sliding down the lower slider by being mounted on the lower slider; and an elastic member(60) supporting the vertical sliding of the upper slider, since both sections thereof are mounted on the lower slider and the upper slider, respectively. The lower slider(20) comprises a rail shaft(50), which functions as a rail during the vertical sliding of the upper slider by being mounted while covering right left side portions of the lower slider. On the other hand, like shown in Fig. 12(a) and Fig. 12(b), a rail shaft(50) may be mounted in upper or lower direction of the lower slider(20). In addition, buffer members(51) can be comprised to perform buffering actions when the upper slider is bumped into an upper end and a lower end of the lower slider owing to the vertical sliding of the upper slider. A detailed explanation on a configuration and an operation of each configuration part will be omitted since it is the same as the above descriptions.

[81] Fig. 13 is a diagram showing a third embodiment of an elastic member in accordance with the present invention, Fig. 13(a) is a coupled perspective view of the third embodiment of the elastic member in accordance with the present invention, and Fig. 13(b) is an exploded perspective view of the third embodiment of the elastic member in accordance with the present invention. Like shown in Fig. 13(a) and Fig. 13(b), the third embodiment(70) of the elastic member in accordance with the present invention consists of: two rods(71) being in long stick shape; a body portion(75) forming guide portions(76), which are caved in to guide horizontal movements of each rod on an upper side; and a cover portion(78) covering the upper side of the body portion. That is, the third embodiment(70) of the elastic member in accordance with the present invention has a varied overall length through an operation of the two rods(71) mounted on the body portion(75) going in or coming out of the body portion. To do this, springs(74) having predetermined elastic forces are mounted in certain sections(72) of each rod(71) mounted on the guide portions(76). Hereinafter, the two rods(71) will be called a first rod and a second rod for descriptive convenience. Each configuration part will be described as follows.

[82] First, the first and second rods(71) are in long stick shape, and are symmetrically disposed in the same shape. At this time, each rod is disposed in crossing way without being disposed at the same line. And, concave portions(72a) are formed in the sections(72) of each rod(71) where the springs(74) are mounted, to stably mount the springs. More specifically, the sections(72) are formed in trident shape, and the springs(74) are inserted into the concave portions(72a) formed between middle branches(72b) and right/left branches. It is desirable for the middle branches(72b) to be relatively longer than the right/left branches. Moreover, fixing shafts(73) mounted with the fixing grooves(24,34) of the lower slider(20) and the upper slider(30) are comprised in the rest sections of each rod(71). Like both sections(46,48) of the first embodiment(40) of the elastic member illustrated in Fig. 4 and the fixing projections(48a,49a) formed in the first and second cap portions(68,69) of the second embodiment(60) of the elastic member illustrated in Fig. 9, sections of the fixing shafts(73) are round such that the fixing shafts can function as rotational shafts while being coupled with the fixing grooves(24,34), respectively.

[83] In the meantime, it is possible to transform the sections(72) of the first and second rods(71) in two-branch type instead of the trident shape having three branches. In this case, the sections of the first and second rods are formed without the middle branches(72b) in the above embodiment. Besides, the springs(74) are mounted on the two branches, respectively. Consequently, since the first rod and the second rod are supported by the two springs, respectively, an elastic force may be more increased than an embodiment where springs are mounted on middle branches only.

[84] Next, the body portion(75) is a part where the first and second rods(71) are mounted, comprising the two guide portions(76) caved in to set each rod on an upper side. Thus, each guide portion(76) is formed in reversed phase shape of the sections(72) located on the set first and second rods(71). The springs(74) are disposed in areas(76a) of the guide portions corresponding to the middle branches(72b) among the sections of the first and second rods, respectively. Like shown above, the first rod and the second rod are disposed in crossing way instead of being located at the same line. To do this, each guide portion(76) is crossly disposed as well without being located at the same line. For instance, if the guide portion where the first rod is mounted is formed on the left, the other guide portion where the second rod is mounted is formed on the right. Accordingly, compared to a configuration that the two guide portions(76) are disposed at the same line, an overall length of the body portion(75) can be reduced in half, so that the entire length of the third embodiment(70) of the elastic member can be properly applicable to the mobile phone slider.

[85] Likewise, hooking ends(not shown) are comprised in coupled parts of the body portion(75) and each rod(71) to prevent each rod from being separated from the body portion by elasticity of the springs(74).

[86] Meanwhile, plural coupling projections(77) protruded in predetermined size toward an upper part are comprised on an upper side of the body portion(75) to couple the body portion with the cover portion(78).

[87] The cover portion(78) covers the upper side of the body portion(75), and more specifically, it covers an upper side area opened by the guide portions(76). The cover portion(78) comprises plural coupling grooves(79) pierced or caved in to insert each coupling projection, in certain positions corresponding to each coupling projection(77) of the body portion. And, semi-circularly caved-in setting grooves(78a) are formed in both sections of the cover portion(78) corresponding to the guide portions(76), so that the fixing shafts(73) of the first and second rods(71) compressed inside the body portion(75) through the guide portions can be located.

[88] Fig. 14 is a diagram for illustrating an operation of a third embodiment of an elastic member in accordance with the present invention, Fig. 14(a) is a diagram showing a state that an external force(pressure) is not applied to the third embodiment of the elastic member in accordance with the present invention, and Fig. 14(b) is a diagram showing a state that the third embodiment of the elastic member in accordance with the present invention is compressed by being applied with the external force. Also, a perspective view of removing the cover portion(78) is illustrated in Fig. 14(a) and Fig. 14(b) for descriptive convenience.

[89] First, like shown in Fig. 14(a), if an external force, that is a horizontal pressure for each rod(71) is not applied to the third embodiment(70) of the elastic member in accordance with the present invention, the sections(72) of each rod inserted into a body portion(75) are supported by springs(74) within the guide portions(76). Thus, areas of each rod(71) except the sections(72) are exposed outside the body portion. In detail, since the springs(74) disposed in the areas(76a) corresponding to the middle branches(72b) located in the sections of each rod(71) of the guide portions(76) support the concave portions(72a) of the sections of each rod, a state that certain areas of each rod are exposed outside the body portion, that is, a state that the third embodiment(70) of the elastic member is relaxed may be stably maintained. Like shown above, a state of the third embodiment(70) of the elastic member illustrated in Fig. 14(a) corresponds to a state that the upper slider(30) of the mobile phone slider is fully lifted down under the lower slider(20) or fully lifted up, that is, a state that the sliding mobile phone is perfectly opened or closed.

[90] On the other hand, when the horizontal pressure is applied for each rod(71) of the third embodiment(70) of the elastic member in accordance with the present invention, each rod is inserted into the body portion(75) like shown in Fig. 14(b), resulting in a contracted state of the third embodiment of the elastic member. More specifically, each rod(71) exposed outside the body portion(75) compresses the springs(74) as going into the body portion along the guide portions(76) by the horizontal pressure. So, the entire length of the third embodiment(70) of the elastic member gradually gets shorter. A state of the third embodiment(70) of the elastic member illustrated in Fig. 14(b) corresponds to a state that the upper slider(30) of the mobile phone slider is moving upward or downward along the lower slider(20) like shown above, that is, a state that the sliding mobile phone is being opened or closed. Specifically, it corresponds to a state that the third embodiment(70) of the elastic member is compressed to the maximum, while the upper slider(30) is in the middle of vertically moving. Therefore, like shown above, if the upper slider(30) is further lifted up or down, the horizontal external force gets weakened, causing each rod(71) inserted into the guide portions(76) to be pushed out by restoring forces of each compressed spring(74). Consequently, each rod gradually comes out of the body portion(75), and the overall length of the third embodiment(70) of the elastic member gets longer little by little.

[91] The mobile phone slider applied with the third embodiment of the elastic member in accordance with the present invention is illustrated in Fig. 15 and Fig. 16.

[92] Fig. 15 is a perspective view of a third embodiment of a mobile phone slider in accordance with the present invention, Fig. 15(a) is a diagram showing a state that an upper slider(30) in accordance with the present invention is lifted up along a lower slider(20), and Fig. 15(b) is a diagram showing a state that the upper slider in accordance with the present invention is lifted down along the lower slider. Fig. 15 is applied with the second embodiment(30) of the upper slider, the second embodiment(50) of the rail shaft, and the third embodiment(70) of the elastic member, illustrating that the lower slider(20) is fixed to the receiving part(l) of the sliding mobile phone while the upper slider(30) is fixed to the calling part(5) of the sliding mobile phone. So, Fig. 15(a) shows a state that the calling part is closed by lifting down the receiving part of the sliding mobile phone, and Fig. 15(b) illustrates a state that the calling part is open by pushing up the receiving part. Fig. 16 is an exploded perspective view of a third embodiment of a mobile phone slider in accordance with the present invention, showing that the second embodiment(50) of the rail shaft and the third embodiment(70) of the elastic member are applied thereto. Since each configuration part of the third embodiment of the mobile phone slider illustrated in Fig. 15 and Fig. 16 is the same as the above explanations, detailed descriptions will be omitted. Meanwhile, unexplained numbers 35 refer to buffer members for minimizing shock of the receiving part(l) by absorbing the shock when the upper slider(30) moves upward or downward.

[93] Fig. 17 is a diagram for illustrating a fourth embodiment of an elastic member in accordance with the present invention, Fig. 17(a) is a diagram showing the fourth embodiment of the elastic member while the upper slider(30) is perfectly lifted up along the lower slider(20), and Fig. 17(b) is a diagram showing the fourth embodiment of the elastic member while the upper slider is located in a middle spot of the lower slider, then Fig. 17(c) is a diagram showing the fourth embodiment of the elastic member while the upper slider is perfectly lifted down along the lower slider. In other words, Fig. 17(a) and Fig. 17(c) illustrate the fourth embodiment of the elastic member which is relaxed, without any pressure, while Fig. 17(b) illustrates the fourth embodiment of the elastic member which is contracted by pressure. The fourth embodiment of the elastic member in accordance with the present invention will be described as follows in reference to Fig. 17(a) to Fig. 17(c).

[94] The fourth embodiment(80) of the elastic member in accordance with the present invention consists of more than one first elastic part(82a) and more than one second elastic part(84a) being in long stick shape with a predetermined elastic force. Both sections(82b,84b) of the first elastic parts and the second elastic parts are coupled together. The first elastic parts(82a) and the second elastic parts(84a) are opposed to each other in radial shape. Therefore, the first elastic parts(82a) and the second elastic parts(84a) are in bow shape. In addition, both coupled sections(82b,84b) of the first elastic parts and the second elastic parts are combined with the fixing grooves(24,34) of the lower slider(20) and the upper slider(30), respectively.

[95] An embodiment of a mobile phone slider where the fourth embodiment(80) of the elastic member in accordance with the present invention is applied is illustrated in Fig. 18.

[96] Fig. 18 is a perspective view for illustrating an operation of a fourth embodiment of a mobile phone slider in accordance with the present invention, Fig. 18(a) is a diagram showing a state that an upper slider(30) in accordance with the present invention is lifted up along a lower slider(20), and Fig. 18(b) is a diagram illustrating a state that the upper slider in accordance with the present invention is lifted down along the lower slider.

[97] Hereinafter, an operation of the fourth embodiment(80) of the elastic member in accordance with a vertical sliding of the upper slider(30) in accordance with the present invention will be described. At this point, the lower slider(20) is fixed to the receiving part(l) of the sliding mobile phone, while the upper slider(30) is fixed to the calling part(5) of the sliding mobile phone.

[98] First, if the upper slider(30) located on top of the lower slider(20) is lifted down, pressure which compresses both coupled sections of the first elastic parts(82a) and the second elastic parts(84a) is applied, so that right/left widths of the first elastic parts and the second elastic parts get narrower to be contracted. Consequently, an overall length of the fourth embodiment(80) gets reduced. In the meantime, if the upper slider passes through a middle spot of the lower slider, that is, a certain spot where both fixing grooves(24,34) are horizontally located at the same extension line, the contracted first elastic parts(82a) and the second elastic parts(84a) are restored into original states, increasing the right/left widths thereof. Accordingly, the overall length of the fourth embodiment(80) of the elastic member gets extended while the upper slider(30) is pushed down, so that the upper slider can automatically slide down.

[99] Next, in case the upper slider(30) located under the lower slider(20) is pushed up, pressure is applied to the fourth embodiment(80) of the elastic member until the upper slider reaches a middle spot, contracting the first elastic parts(82a) and the second elastic parts(84a). On the contrary, if the upper slider(30) passes through the middle spot, the pressure applied to the fourth embodiment(80) of the elastic member is released to restore the first elastic parts and the second elastic parts, thereby pushing up the upper slider.

[100] Fig. 19 is a diagram showing a fifth embodiment of a mobile phone slider in accordance with the present invention, Fig. 19(a) is a plane diagram of the fifth embodiment of the mobile phone slider in accordance with the present invention, and Fig. 19(b) is a perspective view of the fifth embodiment of the mobile phone slider in accordance with the present invention. Fig. 19(a) and Fig. 19(b) illustrate a lower slider(120) and an upper slider(130) only, which are installed on the right, among right/left lower sliders and the upper slider of the mobile phone slider. Particularly, Fig. 19(a) shows a state that a portion of the upper slider(130) is cut to display an internal structure of the upper slider(130). Besides, Fig. 20 is a diagram for illustrating configuration parts of a fifth embodiment of a mobile phone slider in accordance with the present invention. Fig. 20(a) is a diagram showing a rail shaft(122) and an upper slider(130) separated from the lower slider(120), and Fig. 20(b) is a perspective view of seeing the upper slider(130) from the bottom. Meanwhile, the left lower slider and the upper slider of the mobile phone slider are just symmetrical to the right lower slider(120) and the upper slider(130) illustrated in Fig. 19 and Fig. 20. So, the above structure will be replaced with explanations on Fig. 19, Fig. 20 and below. A second embodiment of the mobile phone slider in accordance with the present invention will be described as follows in reference to Fig. 19 and Fig. 20.

[101] The lower slider(120) of the fifth embodiment of the mobile phone slider in accordance with the present invention is in long bar shape, being installed on the right and the left of the calling part(5), and is inserted by covering side rims thereof with the rail shaft(122). A first slider stopper(124a) and a second slider stopper(124b) consisting of predetermined grooves are formed on left sides of external sides of the rail shaft(122), more specifically, on faced sides of the rail shaft installed on the right and the left, respectively. The first slider stopper(124a) and the second slider stopper(124b) are used to determine a lower position and an upper position of the upper slider by stopping the vertically moving upper slider(130).

[102] The upper slider(130) of the fifth embodiment of the mobile phone slider in accordance with the present invention vertically moves along the rail shaft(122), and wherein both side sections thereof are mounted as covering the lower slider(120) and the rail shaft. Therefore, grooves formed in vertical direction are comprised under the upper slider(130) such that the lower slider(120) and the rail shaft(122) can be inserted.

[103] In addition, a spring(132) and a ball(134) supported by the spring are mounted inside the upper slider(130). At this time, a certain area of the ball(134) is exposed to a side contacted with the rail shaft(122), that is, a contacted side with the rail shaft among the grooves under the upper slider. Accordingly, in case the upper slider(130) reaches the slider stoppers( 124a, 124b) of the rail shaft(122), the ball(134) is pushed out by elasticity of the spring(132) and hooked over the groove-shaped slider stoppers.

[104] An operational principle of the fifth embodiment of the mobile phone slider in accordance with the present invention will be described below.

[105] First, when the receiving part(l) is lifted down, that is, before the upper slider(130) is pushed up, the ball(134) of the upper slider is hooked over the first lower slider stopper(124a) of the slider stoppers located at the rail shaft(122). On this occasion, if the user pushes up the receiving part(l), the upper slider(130) is pushed up as well while the ball(134) is pushed inside along a side of the first slider stopper(124a), thereby compressing the spring(132). A state of the ball(134) being pressed by the side of the rail shaft is maintained before the upper slider(130) reaches the second slider stopper(124b) of the rail shaft(122), and a frictional force between the ball and the side of the rail shaft is increased by elasticity of the spring(132), preventing the upper slider from being suddenly pushed up. Besides, since the ball(134) rotates along the side of the rail shaft(122), it can prevent any inconvenience for the user to push up the receiving part(l) owing to an excessive frictional force. In other words, only a sufficient amount of frictional force and resisting force corresponding to a restoring force of the spring(132) can be produced when the receiving part is pushed up.

[106] On the other hand, if the ball(134) is located in the second slider stopper(124b) while the upper slider(130) is pushed up along the rail shaft(122), the ball is pushed out by the spring(132) to be hooked over the second slider stopper(124b). Accordingly, it is available to prevent the upper slider from being separated from the lower slider by being continuously pushed up. In this case, a hooking end may be comprised on an upper end of the lower slider to prevent the upper slider separation.

[107] Also, even though the pushed-up upper slider(130) is pushed down, the ball(134) is pushed in along a side of the second slider stopper(124b) to compress the spring(132), and when being located in the first slider stopper(124a), the ball is pushed out again by the spring to be hooked over the first slider stopper, thereby preventing the upper slider from being separated from the lower slider. Even in this situation, a hooking end may be comprised on a lower end of the lower slider to prevent the upper slider separation.

[108] Consequently, it is possible to push up or down the upper slider(130) until a determined position. Furthermore, because the frictional force between the ball(134) and the side of the rail shaft(122) is increased by the restoring force of the spring(132) during the upper slider movement, it prevents the upper slider from being suddenly lifted up or down, as well as it prevents any shock from instantly being applied to the receiving part(l).

[109] Fig. 21 is a diagram showing a sixth embodiment of a mobile phone slider in accordance with the present invention. Like shown in Fig. 21, the sixth embodiment of the mobile phone slider in accordance with the present invention is composed of lower sliders(220) being in long bar shape on the right and the left, and an upper slider(230) vertically moving since both side sections thereof are combined with the right/left lower sliders. Configurations and functions of rail shafts(222), slider stoppers(224b), springs(232), and balls(234) are the same as the fifth embodiment of the mobile phone slider illustrated in Fig. 19 and Fig. 20, thus detailed explanations will be omitted. [110] Fig. 22 is a diagram showing a seventh embodiment of a mobile phone slider in accordance with the present invention, Fig. 22(a) is a plane diagram of the seventh embodiment of the mobile phone slider in accordance with the present invention, and Fig. 22(b) is a front view of the seventh embodiment of the mobile phone slider in accordance with the present invention. Like shown in Fig. 22(a) and Fig. 22(b), the seventh embodiment of the mobile phone slider in accordance with the present invention comprises a lower slider(240) where rail shafts(242) are mounted on right/ left side ends thereof, respectively, and an upper slider(230) vertically moving since both side ends thereof are combined with the right/left rail shafts of the lower slider. The seventh embodiment of the mobile phone slider mutually connects the right/left lower sliders(220) illustrated in the sixth embodiment of Fig. 21, more firmly configuring the lower slider(240). Configurations and functions of the rail shafts(242), slider stoppers(244b), the upper slider(230), a spring(232), and a ball(234) are the same as the above explanations, thus detailed descriptions will be omitted.

[Ill] Fig. 23 is a diagram showing an eighth embodiment of a mobile phone slider in accordance with the present invention, Fig. 23(a) is a plane diagram of the eighth embodiment of the mobile phone slider in accordance with the present invention, and Fig. 23(b) is a side view of the eighth embodiment of the mobile phone slider in accordance with the present invention. Like shown in Fig. 23(a) and Fig. 23(b), the eighth embodiment of the mobile phone slider in accordance with the present invention is characterized by a lower slider(320) which is bent at certain angle. Commonly, like shown in a folder-type mobile phone, the user can easily use the mobile phone by contacting the mobile phone with the user's face, when the receiving part(l) is maintained from the calling part(5) at certain angle. Thus, by bending the lower slider(320) at certain angle while an upper slider(330) slides along the lower slider, the certain angle between the receiving part and the calling part can be maintained when the receiving part(l) of the sliding mobile phone is pushed up. The rest configurations and functions of the lower slider(320), a rail shaft(322), slider stoppers(324a,324b), and the upper slider(330) are the same as the explanations of Fig. 19 and Fig. 20, thus detailed descriptions will be omitted. Also, Fig. 23(a) and Fig. 23(b) illustrate a left lower slider and the upper slider only, of right/left lower sliders(320) and the upper slider(330), and wherein the right lower slider and the upper slider are symmetrical to the above structure. Thus, detailed explanations on the diagram will be omitted.

[112] Fig. 24 is a diagram showing a ninth embodiment of a mobile phone slider in accordance with the present invention, Fig. 24(a) is a front view of the ninth embodiment of the mobile phone slider in accordance with the present invention, and Fig. 24(b) is a side view of the ninth embodiment of the mobile phone slider in accordance with the present invention. Like shown in Fig. 24(a) and Fig. 24(b), the ninth embodiment of the mobile phone slider in accordance with the present invention comprises lower sliders(320) bent at certain angle and fixed to right/left sides of the calling part(5), respectively, and an upper slider(340) vertically moving since both side sections thereof are combined with the right/left lower sliders. That is to say, the ninth embodiment of the mobile phone slider in accordance with the present invention mutually connects the right/left upper sliders of the eighth embodiment shown in Fig. 23(a) and Fig. 23(b). The rest configurations and functions of the lower sliders(320), rail shafts(322), slider stoppers(324a,324b), and the upper slider(340) are the same as the explanations of Fig. 19 and Fig. 20, thus detailed descriptions will be omitted. Industrial Applicability

[113] A slider for connecting a calling part with a receiving part of a mobile phone in sliding way according to the present invention stably supports a vertical sliding of an upper slider, thereby preventing shock from being applied to the mobile phone while the upper slider slides down, or preventing the upper slider from being separated from the lower slider. Also, it can specify a vertical position of the upper slider on the lower slider, increasing efficiency of a manufacturing process of the upper slider while enhancing product completion.

[114] In other words, the slider for connecting the calling part with the receiving part of the mobile phone in accordance with the present invention has the following effects:

[115] 1) since the vertical sliding of the upper slider is supported by mounting various types of elastic members between the upper slider and the lower slider, it is possible to prevent a telephone receiver from being suddenly moved by generating resistance as much as elastic power of the elastic member when the receiver of the sliding mobile phone is lifted up or down. In addition, when the receiver is lifted up or down in certain height, the receiver automatically moves by a restoring force of the elastic member. So, it is easily to use, while preventing the upper slider from being separated from the lower slider since the elastic member connects the upper slider with the lower slider;

[116] 2) Since the lower slider is made of engineering plastics, excellent intensity, flexibility, productivity, and economical effects are obtained. More specifically, it is available to more improve radio transceiving sensitivity of the mobile phone, enable mass production through an injection molding method, and to minimize product transformations caused by external shock;

[117] 3) In case of the upper slider, because insert members are molded with an insert molding process by using engineering plastics on a stainless frame of the upper slider, it is easily to manufacture the upper slider and simple to fabricate configuration parts required for precise molding processes such as rail shaft insertion grooves, thereby remarkably improving production efficiency. Particularly, thanks to the insert molding process, the rail shaft insertion grooves of the upper slider can be precisely contacted with rail shafts, increasing product completion. Furthermore, since the metal-made rail shafts are contacted with the engineering plastic-made rail shaft insertion grooves, noise or product abrasion may be tremendously reduced during the sliding of the upper slider;

[118] 4) It is possible to prevent the upper slider from being isolated from the lower slider by comprising separation preventing ends under the upper slider, and to form the separation preventing ends without another molding process because the insert members are molded after manufacturing the frame;

[119] 5) It can easily control size of an elastic force of the elastic member, by changing a first embodiment of the elastic member in overlapped type, or changing the number of springs mounted on rods after transforming the rods of a third embodiment of the elastic member, or freely changing the number of elastic parts of a fourth embodiment in accordance with the elastic member. Besides, even though a high elastic force is obtained, an elastic motion of the elastic member can be stably maintained. Thus, an appropriate type of elastic member may be applied according to a degree of a necessary elastic force or usage purposes of the elastic member, widening its appl ication. Specially, in case of the third embodiment of the elastic member, each configuration part such as guide portions where a first rod and a second rod move in horizontal direction within a shaped body portion, a force generation portion, and a transmission portion is integratedly manufactured to share its role. Consequently, it can improve productivity while reducing a manufacturing time and cost; and,

[120] 6) When slider stoppers are used, a ball mounted on the upper slider is pushed out by a spring to be hooked over a first slider stopper or a second slider stopper, thereby specifying a vertical position of the upper slider and preventing a separation of the upper slider. Likewise, since a frictional force and a resisting force are produced between the ball and a side of a rail shaft by a compressed spring while the upper slider is pushed up or down, it can prevent the upper slider from being instantly pushed up.

[121] While the present invention has been described in connection with a number of embodiments and implementations, the present invention is not so limited but covers various obvious modifications and equivalent arrangements, which fall within the purview of the appended claims.

Claims

[1] A slider for connecting a calling part with a receiving part of a mobile phone in sliding way, which supports a sliding opening/closing operation of the receiving part and the calling part, being installed on a sliding mobile phone for opening/ closing by mutually sliding the receiving part where an LCD screen is disposed and the calling part where number keys are installed, comprising: a lower slider mounted on either the receiving part or the calling part; wherein the lower slider, comprising: rail shafts mounted as covering both sides of the lower slider; and a first fixing groove pierced on an inner side by being separated from a first side at certain intervals; an upper slider mounted on the rest one of the receiving part and the calling part, and vertically sliding along the lower slider by being mounted on top of the lower slider while covering both sides of the lower slider and the rail shafts together; wherein the upper slider, comprising: a second fixing groove pierced on an inner side by being separated from a second side opposed to the first side of the lower side at certain intervals; and an elastic member whose overall length is varied by a predetermined elastic force, and supporting the vertical sliding of the upper slider since both sections thereof are combined with the first fixing groove and the second fixing groove, respectively.

[2] The slider of claim 1, wherein the upper slider and the lower slider are made of engineering plastic materials.

[3] The slider of claim 1, wherein the elastic member comprises two fixing projections combined with the first fixing groove and the second fixing groove, respectively, by being formed in both sections, respectively, and having round- shaped sections.

[4] The slider of claim 1, wherein the first fixing groove is located at least higher than the second fixing groove in vertical direction at a horizontal extension line.

[5] The slider of claim 1, wherein the rail shafts are in 'U' shape for simultaneously covering both sides of the lower slider.

[6] The slider of claim 1, wherein the rail shafts consist of a first rail shaft and a second rail shaft independently covering both sides of the lower slider, respectively.

[7] The slider of claim 1, wherein the elastic member, comprising: a first bar being in pipe shape pierced inside, opening a first section thereof, and intercepting a second section; a second bar moving in horizontal direction since a first section thereof is inserted to be coupled with the opened first section of the first bar; and a spring supporting the first section of the second bar by being mounted inside the first bar; and wherein the second section of the first bar and the second section of the second bar are combined with the first fixing groove and the second fixing groove, respectively.

[8] The slider of claim 7, wherein the elastic member further comprises a hooking end for preventing the second bar from being isolated in a coupled part of the first bar and the second bar.

[9] The slider of claim 1, wherein the elastic member, comprising: more than one first supporting pipe being in pipe shape pierced inside, opening first sections thereof, and intercepting second sections; more than one first insertion bar moving in horizontal direction since first sections thereof are inserted to be coupled with the opened first sections of the first supporting pipes, respectively; more than one second supporting pipe being in pipe shape pierced inside, opening first sections thereof, and intercepting second sections; more than one second insertion bar moving in horizontal direction since first sections thereof are inserted to be coupled with the opened first sections of the second supporting pipes, respectively; plural springs mounted inside the first supporting pipes and the second supporting pipes, respectively, and supporting the first sections of the first insertion bars and the second insertion bars, respectively; and a cover portion covering outer circumferences of the first supporting pipes and the second supporting pipes, and mutually fixing the first supporting pipes and the second supporting pipes, respectively; and wherein the first supporting pipes and the second supporting pipes are disposed in turns, while each corresponding section of the first and second supporting pipes is disposed in opposite direction.

[10] The slider of claim 9, wherein the elastic member, further comprising: a first cap portion for mutually connecting exposed second sections of the first insertion bars; and a second cap portion for mutually connecting exposed second sections of the second insertion bars; and wherein the first cap portion and the second cap portion are combined with the first fixing groove and the second fixing groove, respectively.

[11] The slider of claim 9, wherein the elastic member further comprises hooking ends for preventing the first insertion bars and the second insertion bars from being separated, in coupled parts of the first supporting pipes and the first insertion bars and coupled parts of the second supporting pipes and the second insertion bars.

[12] The slider of claim 1, wherein the elastic member, comprising: two rods being in long stick shape; plural springs combined with first sections of each rod; a body portion combined with each rod, and consisting of two guide portions caved in reversed phase of each rod on an upper side; wherein each guide portion is disposed in opposite direction while being crossed together in horizontal direction; and a cover portion covering the guide portions by being mounted on top of the body portion; and wherein each rod moves in horizontal direction along each guide portion while the first sections are supported by each spring.

[13] The slider of claim 12, wherein the first sections of each rod are in trident shape consisting of three branches, and each spring is coupled with concave portions formed among each branch of the first sections on each rod.

[14] The slider of claim 13, wherein a middle branch of the three branches of the first sections on each rod is at least longer than right/left branches.

[15] The slider of claim 12, wherein the first sections of each rod are in fork shape having two branches, and each spring is coupled with each branch of the first sections on each rod.

[16] The slider of claim 12, wherein each rod comprises fixing shafts whose sections are circular and are coupled with the first fixing groove and the second fixing groove, in the section sections, respectively.

[17] The slider of claim 12, wherein the elastic member further comprises hooking ends for preventing each rod from being separated, in coupled parts of every rod and the body portion.

[18] The slider of claim 1, wherein the elastic member, comprising: more than one first elastic part having a predetermined elastic force, and being in long stick shape; and more than one second elastic part having a predetermined elastic force in long stick shape, and being disposed opposite to each one of the first elastic parts; and wherein the first elastic parts and the second elastic parts are in mutual radial type, and both sections thereof are coupled together.

[19] The slider of claim 1, wherein the upper slider, comprising: a frame forming an external shape of the upper slider, and including a separation preventing end extended to a lower area of the second fixing groove and the lower slider; and two insert members molded in insert molding method under both side sections of the frame, and including rail shaft insertion grooves caved in such that the rail shafts can be mounted on opposite sides.

[20] The slider of claim 19, wherein the insert members are made of engineering plastic materials.

[21] The slider of claim 19, wherein both side sections of the frame are bent in 'D' shape.

[22] A slider for connecting a calling part with a receiving part of a mobile phone in sliding way, which supports a sliding opening/closing operation of the receiving part and the calling part, being installed on a sliding mobile phone for opening/ closing by mutually sliding the receiving part where an LCD screen is disposed and the calling part where number keys are installed, comprising: two lower sliders mounted on either the receiving part or the calling part, and being in long bar shape; wherein the lower slider, comprising: two rail shafts mounted as covering the lower sliders, and consisting of a first slider stopper and a second slider stopper caved in predetermined depth at an upper section and a lower section of a first side, which are opposite to each other; and an upper slider mounted on the rest one of the receiving part and the calling part, and sliding in vertical direction along the lower sliders by being mounted on top of the lower sliders while covering each rail shaft; and wherein the upper slider, comprising: a groove covering the rail shafts by being caved in under the upper slider; a spring mounted inside a second side opposed to the first side of the rail shafts among inner sides of the groove; and a ball supported by the spring such that a portion of the ball is exposed to the second side.