WO2010093121A2 - Sliding-type mobile device - Google Patents

Abstract

The present invention relates to a mobile device such as a mobile phone, which is slidingly opened and closed. More particularly, the present invention relates to a sliding-type mobile device in which a spring module with a specific structure is employed to improve the sliding action of a movable plate, and a connection means having a specific shape is arranged to connect the ends of a first spring and a second spring to a fixed plate and to the movable plate, respectively, to enable easy assembly. The sliding-type mobile device according to the present invention comprises: a frame having a fixed plate and a movable plate slidably arranged on the fixed plate; a spring module; and a connection means for connecting the ends of the first spring and the second spring to the fixed plate and to the movable plate, respectively.

Description

[Revision 01.02.2010 by Rule 26] 26Sliding type mobile device

The present invention relates to a mobile device that is opened and closed by a sliding type such as a mobile phone, and more particularly, by using a spring module having a specific structure, it is possible to improve the slide opening and closing response of the moving plate, The connecting means for coupling both ends of the first and second springs in a specific form to increase the assemblability, and further, by introducing a vent to the main body of the metal dome switch to smoothly release the air pressure in the metal dome switch to feel the click of the mobile device And it relates to a sliding type mobile device capable of implementing excellent response performance.

In general, mobile devices are classified into a bar type, a flip type, a folder type, and a slide type according to an open method, and recently, a slide type is classified into one type.

Sliding mobile devices, especially slide mobile phones, generally have a built-in spring module to assist slide movement of the moving plate. The technology related to the spring module mounted on the slide mobile phone has been presented in various ways, the commercially available basic configuration is a spring that provides elasticity, and both ends of the spring can be rotated on the fixed plate and the movable plate, respectively It consists of a fixing means for fastening.

Among the various types of spring modules already disclosed, as described in Sejong Tech Co., Ltd. Patent No. 0060782 (December 18, 2006) [Sliding Tension Device for Mobile Phone], end portions are rotatably coupled to fixed plates and moving plates, respectively. An end of each spring is fixed to the inside of the end, and a spring module further comprising a first guide part and a second guide part surrounding the upper and lower parts of the spring are formed on one axis.

In addition to the spring and the fixing means, the spring module further includes a first guide part and a second guide part surrounding the upper and lower parts of the spring. The spring module is elastically strong in a manner that the spring is condensed and extended in a straight line, and the spring module is applied to the mobile plate of the mobile phone. Although the durability of the spring is good, it has the advantage of being good, but the presence of the first guide part and the second guide part makes the spring module expensive, which makes it less competitive, and there is a limit to thinning the spring module. Does not fit.

Accordingly, a spring module has been disclosed that reduces the manufacturing cost and removes the first guide part and the second guide part surrounding the upper and lower parts of the spring in accordance with the slimming trend.

One of them is Wooyoung Patent Publication No. 2004-104359 (2004.12.10) [slide device of a sliding type mobile phone with a durable torsion spring]. The prior art has a bent portion into which the fixing plate is inserted into the groove at one end of the spring, and the groove is fixed to the moving play by a hinge pin at the other end. The coil is placed in the center of the spring while using two springs to strengthen the elasticity.

The prior art has a coil portion in the center of the spring, so that the thickness of the spring is not suitable for the slimming tendency of the mobile phone, and the two springs are independently separated by using two springs to strengthen the spring elasticity. Since it is coupled to the movable plate and the fixed plate respectively, it takes a lot of time to install the spring, and the spring is kept elastic so that the spring continues to push the movable plate even when the movable plate is completely open or completely closed. It causes fatigue (load).

On the other hand, in general, a mobile device, particularly a mobile phone is provided with a keypad for inputting letters or symbols, the keypad is provided with a metal dome, the metal dome is metallic (especially stainless steel), a plurality of keypad switches are arranged It is arranged on the PCB plate. That is, when a user of various types of mobile devices presses a key (keyboard), the metal dome located at the bottom of the mobile device is also pressed and deformed while being pushed downward, thereby pressing the keypad switch to cause a switching operation.

The metal dome makes the user feel the click on the tip of the finger and protects the keypad switch at the bottom.

Among various technologies related to such a metal dome, Korean Patent Publication No. 2003-0092301 (2003.12.06.) [Metal Dome Switch] is presented, the prior art is the inner surface of the metal dome switch (metal dome switch) In the contact projections formed in the at least two contact projections formed on the inner bottom surface of the metal dome, and formed by forming the contact projections at a position outside the vertex of the inner metal dome, formed on the metal dome Although the contact projections have the effect of minimizing the contamination by foreign substances introduced into the metal dome, the contact point has an effect of reducing the defective rate, but considering that the metal dome is formed by processing a metal plate with a press, the contact projections In press processing, there is a limit to precision machining with the same press every time with the proper size. There is a limit even to machine the press inevitably high failure rate. For this reason, the feeling of click of each key is not the same, and the falling distance of the contact protrusion lowered by the pushing pressure is also inconsistent, and the metal dome does not relieve the air pressure generated when the metal dome falls due to the pushing pressure. It does not have the problem that the internal air pressure acts as an air spring (air spring) to reduce the feeling of click or responsiveness.

As a technology for releasing the air pressure inside the metal dome, Korean Utility Model Registration No. 20-0222272 (registered on February 19, 2001) [Metal dome switch assembly in the keypad of the communication device] is presented, the prior art is air By utilizing the substrate paper on which the flow path is formed, an air flow path is formed between a plurality of metal dome switches, or an air flow path is formed on one metal dome switch as necessary to provide a metal dome switch assembly. Although related to the air flow path in which the spaces in which the metal dome is located are connected to each other, or the air flow path in the form of open to one side of each space is rather arranged in the substrate (corresponding to the seat of the present invention) Interfere with the fixing of the metal dome, and may cause interference when assembling the metal dome there is a problem inferior assembly.

The present invention has been proposed to solve the problems of the existing spring module as described above can minimize the thickness of the module itself in accordance with the recent trend of light and short of mobile phones, easy to manufacture and minimize the number of components to contribute to cost reduction Above all, the elastic force in the fully opened or completely closed state by dualizing into a second spring having a constant elasticity and a first spring that is extinguished upon completion of opening and closing to reduce the resistance during the initial operation of the slide opening and closing of the existing product. It is possible to minimize and greatly reduce the initial opening and closing of the slide, but when the slide operation is in full swing, both springs act together to allow rapid movement. Squeeze on moving plate or fixed plate It can provide a spring module to minimize the rest.

In addition, the present invention is arranged so that the flat parts arranged on opposite sides of the bent portion surrounding both ends of the spring while the assembly of the two springs separated from each other through the connecting members provided on both ends of the first and second springs toward the inner surface of each plate. By eliminating the source of the expected cause of friction and noise, the relatively thick bent part to cover the both ends of the spring is in contact with each plate so as not to generate friction, so it becomes thinner and thinner. An object of the present invention is to provide a spring module.

In order to achieve the purpose of reducing the thickness and frictional noise of the spring module, the first and second spring ends themselves are not circularly formed but alternatively constitute first and second windings, respectively. Each winding part is arranged inside and outside each other to form a single concentric circle, and the fixing pin is inserted in the center of the concentric circle is configured to be coupled to each of the two plates to implement a thinner spring module, and the first and second winding parts are mutually Since the spring is rolled in the opposite direction, each spring at the start of the winding part does not come in contact and forms a separate shape, so that even when the spring is bent and deformed due to the slide movement of each plate, the mutual collision of both springs near the winding part is prevented. It is an object of the present invention to provide a spring module capable of realizing frictional noise reduction.

Furthermore, the present invention provides a fixing hole of the connecting member fixing part to which the fixing pin is inserted to connect the both ends of the first and second springs in order to reduce the resistance during the initial opening and closing of the slide to achieve a more smooth operation. It is arranged in an eccentric position on an imaginary straight line so that the spring, especially the elasticity of the second spring is in the state of acting on the fixing pin as the principle of the lever at the opening and closing point. For the purpose of providing it.

In addition, the present invention simplifies the configuration and the spring is quickly coupled to the plate to reduce the manufacturing cost, to minimize the overall thickness of the sliding-type mobile device by placing the components of the spring on the same plane without overlapping, each plate It provides a means for preventing the separation of the connecting means fitted to the coupling portion formed in the injection molding, and provided with a connecting means at the end of the spring and the connecting means is rotated to provide a sliding type mobile device with increased durability. It is done.

Furthermore, the present invention is formed around the central contact portion such that the vent formed on the main body of the metal dome switch does not overlap with the contact portion where the keypad and the central contact portion come into contact with each other. Maintaining excellent performance, and a plurality of vents are provided to reduce the weight of the metal dome switch to reduce the size of the product, and each vent is arranged in a position symmetrical with each other, so that the metal dome switch It is an object of the present invention to provide a mobile device equipped with a metal dome switch with improved response performance that can guarantee the operation reliability of the product by being pressed by the same load even in the direction.

Furthermore, in the sliding type mobile device according to the present invention, the metal dome switch has a lateral light narrow (협) shape, and the central contact portion is provided with a ridge and a dimple so that the center contact portion and the PCB may be pressed in any direction. The contact rate of the internal contact point is high, so that the response performance can be further improved, and the ventilation part is made of a ventilation groove formed in each side of the main body concavely, thereby relieving air pressure in the metal dome switch and increasing sensitivity to elasticity. By reducing the pressurized load of the switch, the click feeling can be further improved, and the weight of the metal dome switch can be reduced, and the material cost can be reduced, thereby improving the economical efficiency. It is another purpose.

In order to achieve the above object, a sliding type mobile device according to the present invention includes a frame including a fixed plate and a movable plate arranged on the fixed plate and slidably moved; Spring module; And connecting means for coupling both ends of the first and second springs to the two plates.

In addition, in the sliding type mobile device according to the present invention, the spring module is composed of first and second springs, and the first spring loses elasticity when the opening and closing of the movable plate is completed, and the second spring maintains elasticity at all times. It is desirable to.

In the sliding type mobile device according to the present invention, the connecting means includes a connection member coupled to each end of the first and second springs, the fixing member having a fixing hole formed therein, and a fixing pin coupled to the fixing hole. Preferably, the connection member has a flat portion facing the inner surface of each plate, extending to the fixing portion, extending to both sides of the flat portion, and bent after bending, by the flat portion and the bent portion Preferably, both ends of the first and second springs are contact fixed.

In addition, in the sliding type mobile device according to the present invention, the fixing hole of the connecting member fixing part to which the fixing pin is inserted is arranged in an eccentric position on an imaginary straight line connecting both collecting points of the first and second springs. It is preferable.

Furthermore, in the sliding type mobile device according to the present invention, each of the fixed plate and the movable plate is formed of an insertion hole, a locking hole, and a staying hole, each of which has an ultra-low-end shape, which is continuously formed in an optically narrow size. A coupling part is formed, and the connecting means coupled to both ends of the spring module corresponds to the coupling part, and an insertion part continuously formed in a light-neutral size on an upper and lower shape on the base is provided. It is preferable that a part and a locking part are formed.

Further, in the sliding type mobile device according to the present invention, one end of the spring protrudes toward the movable plate so that the staying part of the connecting means located in the staying hole of the coupling part is separated, and the other end of the spring is fixed to the fixed plate. It is preferable to project toward.

In addition, the sliding type mobile device according to the present invention is mounted on the frame, the PC having an internal and external contact portion; A main body arranged above the PCB, a central contact part arranged at the center of the main body and connected to an internal contact part of the PCB, an outer contact part arranged at both sides of the main body and connected to an external contact part of the PCB, And a metal dome switch formed in the main body and including a plurality of vents arranged around the central contact portion. A fixing sheet having a mounting portion for accommodating the metal dome switch; And a keypad arranged above the metal dome switch.

In the sliding type mobile device according to the present invention, the metal dome switches are preferably arranged at positions in which the vents are symmetrical to each other, and in the metal dome switch, the main body has a transverse optical narrow shape. It is preferable that the ventilation portion is a ventilation groove having a shape in which the transverse side portions of the main body, the longitudinal side sides, or both sides of all of these directions are recessed inwardly.

The sliding-type mobile device according to the present invention can minimize the elastic force in the fully opened or completely closed state by dualizing the second spring having a constant elasticity and the first spring that is extinguished when the elasticity is completed, opening and closing smoothly slide opening and closing When the initial movement is possible but the slide movement is in full swing, the elasticity of both springs acts together to allow rapid movement, and the stress applied to the movable plate or the fixed plate is minimized by the elastic change during the initial and middle periods of the opening and closing operation. By providing the spring module that can make it possible, the thickness of the module itself can be minimized in accordance with the recent trend of light and small size of mobile phones, and it is easy to manufacture and minimizes the number of components, thereby contributing to cost reduction, and above all, the slides of existing products Resistance at the time of opening and shutting initial operation One can, and also by providing a spring module capable of reducing friction noise switching implemented to contribute to reduction in thickness, and friction noise reduction objectives of the spring module. Furthermore, in the sliding type mobile device according to the present invention, the fixing hole of the connecting member fixing part into which the fixing pin is inserted is arranged at an eccentric position on an imaginary straight line connecting both collecting points of the first and second springs. Since the elasticity of the spring, especially the second spring, is in the state of acting on the fixed pin at the completion point of opening and closing, the initial opening and closing operation is more smoothly possible. Implementation of the operation is possible.

Furthermore, the sliding type mobile device according to the present invention is formed around the central contact portion such that the ventilation portion formed in the main body of the metal dome switch does not overlap with the contact portion where the keypad and the central contact portion come into contact with each other, thereby smoothly maintaining the pressure relief in the metal dome switch. It maintains excellent click feeling and response performance of the device, and it is provided with a plurality of vents to reduce the weight of the metal dome switch to enable the miniaturization of the product. By allowing the metal dome switch to be pressed under the same load in any direction, the response performance that can guarantee the operation reliability of the product can be improved.

1 is an exploded view showing a keypad, a sheet, a printed circuit board, and a switch unit in a mobile device according to the present invention. 2 is a block diagram of a metal dome switch of a mobile device according to the present invention. Figure 3 is a block diagram showing a skirt formed on the metal dome switch of the mobile device according to the present invention. Figure 4 is a view showing various embodiments of the vent formed in the metal dome switch of FIG. 5 is a side cross-sectional view showing a state in which the metal dome switch of FIG. 3 is arranged on a keypad, a fixing sheet, and a PC. Figure 6 is an exploded view showing that the top film is provided on the fixed sheet in the configuration of FIG. 7 is a perspective view showing a modification according to the present invention. Figure 8 is a block diagram showing that the spring module is mounted on the moving and fixed plate forming a frame in a mobile device equipped with a metal dome switch according to the present invention. 9 is an exploded view of the spring module. 10 is an exploded configuration view of a spring module according to another variant of the present invention.

11 is an exploded perspective view related to a modification of the sliding type mobile device according to the present invention. 12 and 13 are an overall perspective view and an exploded perspective view of the sliding type mobile device according to the present invention modified compared to FIG. 14 is an operation state diagram of a sliding type mobile device according to the present invention. 15 is an exploded perspective view of a spring module deformed compared to FIG. 12.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention may be modified in various ways and have various forms, embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, the same reference numerals, in particular, the tens and ones digits, or the tens, ones and digits, have the same or similar functions, and unless otherwise specified, The member referred to by each reference numeral may be regarded as a member conforming to these standards.

However, in the drawings of one group corresponding to FIGS. 1 to 10 and the drawings of another group corresponding to FIGS. 11 to 15, reference numerals are irrelevant.

In the present specification, the first to the second and the second will only refer to different components, and are not limited to the order of manufacture, and their names in the detailed description of the invention and the claims. This may not match.

First, as shown in FIGS. 8 to 10, the spring module of the mobile device according to the present invention includes a first spring 111, a second spring 112, a first spring 111, and a second spring 112. It comprises a connecting means for rotatably fixing the fixed plate 11 and the movable plate 13, respectively.

One end of the first spring 111 and the second spring 112 are rotatably coupled to the inner surface of the fixed plate 11, and the other end is rotatably coupled to the inner surface of the movable plate 13, and thus, the movable plate. (13) assists the slide movement of the movable plate 13 by applying elasticity during the slide movement for opening or closing.

That is, if the moving plate is slightly moved up or down at a point where both ends of the first spring are closest to each other, then the moving plate automatically slides in the direction of being completely open or completely closed due to the elasticity of the first spring and the second spring.

In relation to the shape change, the first spring 111 is a straight line when the movable plate 13 is moved in a completely open or completely closed state and is otherwise rounded, and the second spring 112 is the movable plate 13. ) Is also rounded when the slide is moved in the fully open or fully closed state.

That is, the second spring 112 is longer than the first spring 111, the core is not in the difference in length and shape, but the first spring is extinguished when the opening and closing of the movable plate is completed, the first spring The two springs are to maintain elasticity at all times.

The second spring 112 has a difference in strength and weakness, but has elasticity at all times to add its elasticity to the elasticity of the first spring 111 so that the moving plate 13 can be slid and moved more quickly and smoothly, and the first spring ( 111 indicates that the elasticity is extinguished when the movable plate 13 is completely open or completely closed, and the movable plate 13 is no longer slid by the elasticity of the second spring 112 so that the movable plate 13 Minimize fatigue on and fixing plates.

Removing the second spring 112, which is always elastic, does not cause fatigue due to the spring elasticity when the movable plate is completely open or completely closed, but as the movable plate 13 is fully opened or completely closed, the first spring is closed. The elasticity of the spring is weakened, so the movable plate does not move quickly and smoothly. Complementing this is another role of the second spring (112).

In this way, the spring spring module is dualized with the second spring having always-on elasticity and the first spring that is extinguished when the elasticity is opened and closed, thereby reducing the resistance during the initial operation of slide opening and closing, thereby minimizing the elastic force in the fully opened or completely closed state. It is possible to make the initial opening and closing of the slide smoothly, but when the slide movement is in full swing, the elasticity of both springs works together to enable the rapid movement. Both key functions can be met to minimize the stress on the plate.

The first spring 111 and the second spring 112 may use a single strand of good elastic wire, or may be used by making dozens of fine wires. Although the cross section is generally circular, so-called leaf spring having a rectangular cross section may be used to increase elasticity. In addition, although the first spring 111 and the second spring 112 may each use one, each of the plurality of springs may be used to increase the elastic force. In FIG. 10C, each of the first and second springs includes two strands of steel wires.

8, 9, and 10 [A], both ends of the first spring 111 and the second spring 112 may be attached to the fixed plate 11 and the movable plate 13, respectively. The connecting means for rotatably fixing is connected to each end of the first and second springs 111 and 112 and has a connecting member 123 having a fixing part 123c in which fixing holes 123d are formed. The first winding portion formed of a fixing pin 125 (see FIGS. 8 and 9) coupled to the hole, or alternatively, as shown in FIG. It consists of a 捲取 部 121 and the 2nd winding part (122). When the fixing pin 125 is coupled, the washers 127 are arranged on the contact surfaces of the plates 11 and 13 to implement friction wear and noise reduction. The connecting member 123 or the winding part (particularly, the winding part which is arranged inside and outside each other to form one concentric circle) can minimize the thickness of the module itself in accordance with the recent trend of light and small size of mobile phones, and is easy to manufacture and the number of components To minimize costs and contribute to cost reduction.

The fixing pin 125 serves to fix both ends of the first spring 111 and the second spring 112 to the fixing plate 11 and the moving plate 13, respectively, and the first spring 111 and the first It serves as a shaft pin that is the rotation axis of the two springs (112).

The fixing pin 125 may be a bolt, a rivet, or the like, and a fixing protrusion (not shown) protruding from the fixing plate 11 and the inner surface of the moving plate 13 may be used.

In addition, the fixing pin 125 is for both the first spring 111 and the second spring 112, and is used in common, that is, the first spring 111 and the second spring 112 are separate from each other. The fixed pin 125 is not rotatably coupled to the fixed plate 11 and the movable plate 13, but both ends of the first spring 111 and the second spring 112 each have one fixed pin 125. It is rotatably coupled to the fixed plate 11 and the movable plate (13) by.

Thus, two springs are used, but there is no additional process than mounting one spring on the plate, so the mounting is quick and easy, thus increasing productivity.

The connecting member 123 is connected to the fixing plate 11 and the movable plate 13 by end pins 125 of the first spring 111 and the second spring 112 as connecting means. The connection member 123 includes a flat portion 123a, a bent portion 123b, and a fixing portion 123c. The flat portion 123a is disposed at the end portions of the first spring 111 and the second spring 112 in contact with an inner surface thereof, and the outer surface thereof faces the inner surface of the fixed plate 11 or the movable plate 13.

The bent portion 123b extends on both sides of the flat portion 123a, and is bent toward the inner surface to be crimped to press-fix the first spring 111 and the second spring 112.

The outer surface of the flat portion 123a is directed toward the inner surface of the fixed plate 11 or the movable plate 13 if the bent portion 123b, which is relatively thickened to surround both ends of the spring, is arranged toward the inner surface of each plate. When the flat portion 123a arranged on the opposite side of the bent portion 123b surrounding both ends of the spring is directed toward the inner surface of each plate, the friction and noise may be caused by contact with the plate. It can reduce the frictional resistance to prevent wear, suppress the occurrence of noise caused by friction, and also minimize the thickness reduction, and can meet the competition for the development of intense mobile phone slimming.

In addition, the fixing part 123c extends outward from the flat part 123a, and a fixing hole 123d into which the fixing pin 125 is inserted is formed. In particular, the fixing hole 123d is arranged at an eccentric position on an imaginary straight line connecting the collecting points of both ends of the first and second springs 111 and 112 to more completely reduce the resistance during the initial opening and closing of the slide. Ensure smooth operation.

In the drawing, both ends of the first and second springs 111 and 112 'collecting points' correspond to the contact surfaces of the flat portion 123a and the bent portion 123b of the connecting member 123. The lower side 'eccentric' corresponds to that the fixing hole 123d is eccentric to one side in an imaginary straight line connecting both ends of the first spring 111, and further provided at one end and the other end of the first spring 111. Preferably, the two fixing holes 123d are located on opposite sides of the virtual straight line.

Through this eccentric structure, since the elasticity of the second spring is in the state of acting on the fixing pin as in the principle of the lever, even at the completion point of opening and closing, more smooth initial opening and closing operation is possible, and furthermore, the two fixing holes 123d are eccentric and opposite to each other. By placing, the resistance against the rounding of the first spring 111 in a straight line at the time of the initial movement of the movable plate 13, i.e., at the time when the first spring 111 starts to slide in the fully open or fully closed state, Minimize to smooth slide movement.

On the other hand, as shown in [B] of Fig. 10, the first winding portion 121 and the second winding portion 122 forming the connecting means, respectively, of the first spring 111 Both ends and the two ends of the second spring 112 is formed to be rolled in a circular shape, in order to achieve the purpose of thinning and reducing the friction noise of the spring module, the first and second spring ends themselves are circular instead of a separate connecting member. The 1st and 2nd winding-up parts which were rolled up and formed were introduce | transduced, respectively.

Particularly, each winding part is arranged inside and outside each other without forming a torsion part that thickens the thickness of the spring to form a single concentric circle, and a fixing pin is fitted in the center of the concentric circle to be coupled to each of the two plates to reduce the thickness of the spring module. It was implemented.

Furthermore, the first and second windings 121 and 122 are rolled in opposite directions so that the springs at the starting point of the windings do not contact each other to form a separate shape, and thus the springs are bent according to the slide movement of each plate. Even when deformed, mutual collision of both springs in the vicinity of the winding part is prevented, so that friction noise reduction can be realized.

As shown in the enlarged circle of [B] in FIG. 10, the first winding part 121 and the second winding part 122 are disposed on the same plane and are arranged on the second plane. The winding part 122 surrounds the outer side of the first jungle part, and the first winding part 121 and the second winding part which rotate the fixing pin 125 about the axis. The direction of curling of the 1st winding part 121 and the 2nd winding part 122 is reversed so that the (122) does not prevent mutual rotation.

In addition, the first winding unit so that the thickness of the spring module is not thickened by protruding the fixing pin 125 inserted into the first winding unit 121 and the second winding unit 122 to be fixed. The 121 and the second windings 122 are stepped to accommodate the head of the fixing pin 125. On the other hand, the fixing pin is inserted into the concentric central hole formed in each of the windings, unlike the concentric circles can also be modified to be arranged in an eccentric position on a virtual straight line connecting the collecting points of both ends of the spring.

The washer 127 is inserted into the fixing pin 125, and the inner surface of the fixing plate 11 and the movable plate 13 and the flat portion 123a or the first winding portion of the connecting member 123. It is disposed between the first 121 and the second winding 122 to prevent abrasion due to friction due to their direct contact, to suppress the occurrence of noise, the first winding取 部 121 and the second winding (122) is to be rotated more smoothly. The first and second springs, and the first and second springs, do not use separate wires for electrical connection between the various electronic components mounted on the outer side of the movable plate and the various electronic components mounted on the outer side of the fixed plate. It can be solved by using a metal material through which the fixing pins for fixing both ends of the fixing plate and the inner surface of the moving plate can flow electricity.

Next, as can be seen in Figure 11 to 15, which is an exploded perspective view of a sliding type mobile device according to another aspect of the present invention, the sliding type mobile device according to the present invention is a fixed plate 10, It comprises a moving plate 20, the spring 30, and both ends of the spring 30 and the inner surface of the fixed plate 10 and the moving plate 20 is provided with a coupling portion and a connecting means, respectively. Between the fixed plate 10 and the inner surface of the movable plate 20 overlapping each other while forming a predetermined space, and is coupled through the rail on both sides, the movable plate 20 slides. As the rail, guide grooves 21 formed on both side surfaces of the movable plate 20 and slits 11 inserted into the guide grooves when protruding from both side surfaces of the fixed plate 10 were used. Modification rails can be selected. Since the fixed plate 10 and the movable plate 20 are almost the same as the conventional ones, further detailed description thereof will be omitted.

In FIG. 11, the coupling part 40 formed at the fixed plate 10 and the movable plate 20 to which the connection means 50 provided at the end of the spring 30 is coupled is an insertion hole 41, It comprises a locking hole 43 and the receiving groove 45 (in Figure 11, 13, 14, respectively, the thickness of each portion of the coupling portion is exaggerated for ease of understanding).

The insertion hole 41 and the locking hole 43 are connected to each other, the locking hole 43 is disposed outside the insertion hole 41, the insertion hole 41 is the insertion portion of the connecting means 50 The inner diameter of the inserting portion 51 is larger than the outer diameter of the inserting portion 51 so that the inserting portion 51 is easily inserted, and the catching hole 43 is inserted into the catching portion 53 while the catching portion 53 forms the catching hole 43. It has a width smaller than the inner diameter of the insertion hole 41 to be caught on the inner and outer surfaces of the plate. The receiving groove 45 is formed on the outer surface of the engaging hole 43, so that the end of the insertion portion 51 of the connecting means 50 is inserted and coupled does not protrude.

The connecting means 50 (refer to the enlarged circle cross-sectional view in FIG. 11) provided at both ends of the spring 30 and coupled to the engaging portion 40 of the fixed or movable plate is an insertion portion 51 and a locking portion. Comprising 53 and the base (50A), it is injection molded and coupled to the end of the spring (30). That is, after inserting the spring 30 into the mold, resin is poured into the mold to form the connecting means 50, and at the same time, the connecting means 50 is coupled to the end 36A of the spring 30.

An end of the spring 30 is coupled to one end of the base 50A, and the insertion part 51 protrudes from the other end. The insertion portion 51 is formed to protrude in the vertical direction at the end of the base 50A, the outer diameter is smaller than the inner diameter of the insertion hole 41 and larger than the width of the locking portion 53. Therefore, it is easily inserted into the insertion hole 41 and caught by the locking portion 53. The locking portion 53 is formed in the lower portion of the insertion portion 51, the inner and outer surfaces of the plate is inserted into the locking hole 43, the upper and lower inner surface of the locking portion 53 forms the locking hole 43 It is caught in contact with.

The sliding type mobile device of the present invention in which the spring 30 and the plates 10 and 20 are coupled to each other through the coupling portion 40 and the connecting means 50 having the structure as described above is provided with the spring 30 and the plates 10 and 20. There is no need for a separate tool in order to insert the connection means 50 into the coupling portion 40, and then simply push the coupling is made quickly.

In addition, since the engaging hole 43 is disposed outside the insertion hole 41 and the end portion 36A of the spring 30 is forced outward by the elasticity, the spring 30 is the plate (10, 20) Reduced risk of natural or accidental departure from

As shown in FIG. 11, the spring 30 has two types of straight shape and both ends wound in opposite directions and a semicircular shape as a whole. A straight spring is formed by twisting a plurality of wires (steel wires) with each other to reinforce elastic force, and a semicircular spring is wound at opposite ends of wires to enhance elastic force. The material of the spring 30 is made of a metal material having high elasticity and high reliability, such as stainless steel or piano wire.

One end and the other end of the spring 30 is coupled to the inner surfaces of the fixed plate 10 and the movable plate 20 to assist the slide movement of the movable plate 20. That is, when the moving plate 20 is located below the center line with respect to the center line of the fixed plate 10, the elastic force of the spring 30 acts downward, and when the moving plate 20 is located above the center line, the elastic force of the spring 30 acts upward, When the user pushes the mobile plate 20 to the center line when opening and closing the mobile phone, the mobile phone is automatically opened or closed by the spring 30 thereafter.

As shown in FIG. 11, the semi-circular spring 30 has a first winding portion 31 wound clockwise (or counterclockwise) at one end thereof, and a counterclockwise (or clockwise) at the other end. And a second winding portion 32 wound around, and a curved connecting portion 33 connecting the first winding portion and the second winding portion. The first winding portion 31, the second winding portion 32, and the connecting portion 33 are integrally formed and positioned on the same plane.

The spring 30 has a portion in which deformation occurs in the process of condensation and extension in accordance with the movement of the moving plate 20 is concentrated on the connecting portion 33, connected to the connecting portion (fixed or moved) plates (10, 20) To minimize the occurrence of deformation in the winding portion (31,32) coupled to the first winding portion 31 and the second winding portion 32 is deformed in accordance with the long-term use is in contact with each other without the slide movement is hindered The spring 30 has been improved to have a structure capable of minimizing the concentration of force on the end of the rotation axis.

11 and 14 (coupling portion 40 and connecting means 50 are shown in FIGS. 12 and 13 in relation to aspects other than FIG. 11, coupling portion 40 schematically showing only outlines). With reference to this in detail,

The connection part 33 has a curved shape so that the condensation and extension of the spring 30 can be made smoothly according to the movement of the movable plate 20, while the deformation generated by the condensation and extension is not restored. Do not

The first winding portion 31 and the second winding portion 32 is formed in a symmetrical shape, and each of the first bent portion 36 is protruded inwardly from the start point (end) and the first bend It consists of a straight part 37 connected linearly at the end of the part, and a second bent part 38 protruding outward from the end of the straight part.

The second bent part 38 and the straight part 37 prevent the deformation force due to the condensation and extension of the spring 30 from being transmitted to the ends any more, and the first bent part 36 and the second bent part 38 ) Is not a part that actually becomes the rotation axis of the spring 30, but serves as a rotation axis to some extent, and is responsible for a part of the force to be concentrated on the insertion part that becomes the rotation axis when the spring 30 rotates, thereby distributing the load on the insertion part. By increasing the durability of the connecting means and at the same time the movement of the movable plate 20 to allow the insertion portion to rotate freely to enable a smooth and smooth slide movement.

In the spring module of the type shown in FIG. 11, the connecting means 59 is pressed toward the outside of the plate 10, 20, that is, the engaging hole 43 of the coupling part 40 by the elasticity of the end portion 36A of the spring 30. Therefore, to some extent, there is a small risk that the connecting means is disengaged toward the insertion hole 41, but the risk of detachment of the connecting means 50 according to the slide operation or the spring elasticity (or initial fixed structure) of the plate 10, 20 remains. do. Accordingly, the present inventors have developed a modified embodiment, as can be seen in FIGS. 12 and 13, which are an overall perspective view and an exploded perspective view of a sliding type mobile device according to the present invention, which is modified compared to FIG. 11.

In this modification, first, the engaging portions 40 formed on the plates 10 and 20 are inserted into the insertion hole 41 and the locking hole, respectively, in which the intermediate and middle shapes are respectively formed in the size of the optical narrow. 44, the retention hole 44, the connecting means 50 (see the enlarged circle cross-sectional view in Fig. 13) has a top-down shape on the base 50A, respectively, the size of the light-neutral The main part differs in that the insertion part 51, the retention part 54, and the locking part 53 which are formed continuously in the furnace are provided.

The coupling portion 40 also has the receiving groove 45 (it takes a way to be formed throughout the coupling portion for ease of manufacture), the insertion portion 51 of the connecting means 50 is inserted and coupled Do not protrude the end of). Correspondence relationship (parts related to inner diameter and outer diameter, respectively) of the coupling portion 40 and the connecting means 50 is [insertion hole 41-insertion portion 51, [engagement hole 43]-latching portion 53 ] And [retention hole 44-retention part 54].

Therefore, after the insertion part 51 is inserted into the insertion hole 41, the pressure is passed toward the outer surface of the plate 10 and 20 so that the locking part 53 is positioned at the locking hole 43, and then the staying hole 44. At the site, the stay 54 is coupled. Therefore, since the outer diameter of the retaining portion 54 of the connecting means 50 is smaller than the inner diameter of the catching hole 43, the detachment separation of the connecting means 50 located in the retaining portion is prevented. Can be held by the elasticity of the spring to be positioned on the top and not bent upward and downward, and the overall shape of the coupling portion 40 is perpendicular to the plate 10, 20 slide movement direction. (It is not formed in the shape of the coupling portion 40 of Figure 11, but is formed in an oblique direction, so that the separation preventing means 50 is prevented by the elasticity of the spring (elasticity acting toward the center of the connecting portion 33) do.

A more strengthening method for preventing the separation of the connection means 50 is that the stay hole 44 is in communication with the shape direction of the engaging hole 44, the center of the stay hole is eccentric in the center line of the engaging hole This can be achieved by a method of forming in position (see schematic diagram in two circles showing a variant in the lower part of FIG. 13).

However, a more obvious solution can be seen in the circle showing the schematic side view of the spring 30 of FIG. 13 (the connecting means are omitted and shown schematically), the retention holes 44 of the coupling part 40. One end 36A of the spring 30 protrudes toward the movable plate 20 so that the retention portion 54 of the connecting means 50 positioned at the) is not separated from the other end 36A 'of the spring. Is protruded toward the fixing plate 10, the connection means 50 and the other end (combination of the movable plate 20) of one end (combination of the fixed plate 10) of the spring 30, respectively It can prevent more reliably.

The out-of-plane angles of the springs 30 at both ends 36A and 36A 'in the modified example of FIG. 13 are exaggerated for ease of understanding, and in practice the springs may be embedded without friction in the space between the two plate inner surfaces. Maintain an angle at

On the other hand, in Figure 15, which is another modified example, the connecting means are injection molded and joined to both ends of the spring, respectively, instead of the ends 36A and 36A 'of the spring 30 extending to have a hollow to have a hollow. A winding portion 39 is formed, and the connecting means 50 is coupled to the hollow 39A of the winding portion 39. In particular, the connecting means 50 is the upper portion of the insertion portion 51 is upper and lower light (上 狹 下 廣) shape (especially the truncated cone to prevent exposure to the outer surface of the plate 10, 20) The upper end can be fitted into the hollow 39A of the winding-up part 39. When the pressure is applied, the winding-up part 39 opens and the entire insertion part 51 passes, and the winding-up part is retracted. Detaching of the connecting means 50 can be prevented. Alternatively, the outer diameter of the insertion portion 51 is easily smaller than the inner diameter of the hollow 39A of the winding portion 39, and the base is formed when the retention portion 54 is caught by the engagement portion 44 in the retention hole 44. The winding portion 39 is interposed between the 50A (the outer diameter larger than the insertion portion) and the plate flange around the staying hole 44, so that the separation can be prevented. In particular, when the windings 39 of the spring 30 are formed of two strands (or more) of steel wires as shown in the drawing, the individual windings of each steel wire are arranged inside and outside each other to form one concentric circle so that one steel wire It is desirable to maintain the thickness to help thin the spring module.

In any case, in the model of FIG. 15, it is preferable to introduce a washer such that the plates 10, 20 and the windings 39 of the springs 30 do not come into contact with each other to cause frictional wear and noise. The washer can also be introduced in the model of FIG. 13.

Next, with reference to FIGS. 1 to 7 in the sliding type mobile device according to the present invention, features related to the metal dome will be described. Hereinafter, the direction reference is specified based on the attached FIG. 1, and the keypad 50 side according to the present invention is referred to as the upper side or the upper side, and the PCB ratio 20 is specified as the lower side or the lower side. 4, the lower and upper sides of the main body 31 are defined as front and rear, and the skirts 36 formed on both sides of the main body 31 are left and right, respectively.左右)

1 to 6, the mobile device with a metal dome switch according to the present invention includes a frame 10; A PCB 20 mounted to the frame 10 and having internal and external contact portions 21 and 22; A main body 31 arranged above the PC 20, a central contact part 32 arranged at a central portion of the main body 31, and connected to an internal contact portion 21 of the PC 20, and the main body ( 31) Outer contact portions 33 arranged on both sides and connected to the outer contact portion 22 of the PC 20 and a plurality of cylinders formed on the main body 31 and arranged around the central contact portion. A metal dome switch 30 comprising a base 35; A fixing sheet 40 having a mounting portion 41a for accommodating the metal dome switch 30; And a keypad 50 arranged on the metal dome switch 30.

1, 5 and 6 will be described with respect to the metal dome switch in the sliding type mobile device according to the present invention.

First, the PCB 20 includes an annular inner contact portion 21 and an annular outer contact portion 22 spaced apart from the outer contact portion 21. That is, the inner contact portion 21 and the outer contact portion 22 are made of a conductive material, and the center and outer contact portion 32 of the conductive metal dome switch 33 according to the pushing operation of the keypad 50. 33 respectively electrically connects the internal contact portion 21 and the external contact portion 22, and for this purpose, an insulation portion (not shown) is provided between the internal contact portion 21 and the external contact portion 22. It is preferable to form so that it can prevent mutual energization.

1 to 6, in the mobile device with a metal dome switch according to the present invention, the metal dome switch 30 includes a main body 31 arranged above the PC 20 and the main body ( 31 is arranged in the central portion, the central contact portion 32 is connected to the internal contact portion 21 of the PC 20, and arranged on both sides of the main body 31, the external contact portion of the PC 20 ( 22 and a plurality of vents 35 formed on the main body 31 and arranged around the central contact portion 32.

That is, the metal dome switch 30 acts as a major factor in the sensitivity of each key formed on the keypad according to the productivity, the height of the dome shape and the degree of elasticity, thereby improving the response performance of the metal dome switch 30. The structural shape becomes very important for this purpose. Therefore, in the present invention, in the metal dome switch 30, the main body is made of a dome (dome) form, it is preferable to have a lateral light narrow (橫 廣 縱 峽) shape, the horizontal light narrow, the horizontal The width means a shape larger than the vertical width, which is for improving the responsiveness according to the pushing operation of the keypad 50 in consideration of the fact that the shape of the keypad arranged in various mobile devices, especially a mobile phone, is horizontally narrow. , To have a shape corresponding to the keypad 50.

In addition, the metal dome switch 30 is arranged on the inner and outer contact portions 21 and 22 of the PC 20, and the inner contact portion 21 of the PC 20 at the center of the main body 31. A central contact portion 32 formed to connect with the outer contact portion, an outer contact portion 33 formed to connect with the outer contact portion 22 of the PC 20 at both lower portions of the main body 31, and the center and the outer portion. And a return unit 34 which connects the contact portions 32 and 33 and provides an elastic force to return to the original position when the pushing pressure is released after the central contact portion 32 is lowered according to the pushing operation. Is done.

At this time, the central contact portion 32 of the metal dome switch 33 has a rounded roof shape, and when pushing the keypad 50 arranged on the metal dome switch 30, proper pushing pressure is not applied. In particular, the pusher may not be pushed at a right angle with respect to the central contact part 32, but may fail to be connected to the internal contact part 21 of the PC 20 when the pushing operation is performed at an inclined angle, thereby causing non-connection. Therefore, in the present invention, the central contact portion 32 of the metal dome switch 30 protrudes upward, and a dimple of a shape arranged inside the ridge 32a and recessed downward. It is formed to have (dimple) 32b.

That is, referring to FIG. 5, the pushed keypad 50 and the raised portions 32a of the central contact portion 32 come into contact with each other, and the raised portions 32a lowered by the pushing pressure are dimples 32b at the center. ) Is a structure that is connected to the inner contact portion 21 of the PC 20, there is an effect that can be significantly reduced when the non-connected than the round roof shape. This is because the dimple 32a has a flat contact surface formed on the lower surface thereof, thereby sufficiently securing a contact surface that can be connected to the internal contact portion 21 of the PC 20 as described above, thereby increasing the connection rate to operate the product. Reliability and customer satisfaction can be guaranteed. When a protrusion (not shown) is formed on the bottom surface of the keypad 50, the protrusion may be formed to have a structure seated on the dimple 32b at the center of the ridge 32a.

In addition, in order to solve the problem that the air pressure inside the metal dome switch 30 acts as an air spring during the pushing operation of the keypad 50 to reduce the responsiveness of the metal dome switch 30 according to the present invention. The main body 31 is provided with a vent 35, in which case the vent 35 is provided in plural around the central contact portion 32, each vent 35 is formed in a symmetrical position do. That is, the vent part 35 is connected to the central contact part 32 and is formed in the return part 34 located in the periphery thereof in order to solve the air pressure generated during the pushing operation of the keypad 50. The vent 35 is preferably formed of a hole-shaped vent 35a having a circular, elliptical, or rectangular shape.

This is because when the keypad 50 is pushed, the lower surface of the keypad 50 presses the ridge 32a of the central contact portion 32 so that the lower surface of the dimple 32b is applied to the internal contact portion 21 of the PC 20. In the case of the connection, if the vent part 35 is formed in a part that can be in contact with the bottom part of the keypad 50 during the pushing operation of the keypad 50, the vent part 35 is formed by the keypad 50. It is to solve that the air pressure in the metal dome switch 30 is not blocked and the click feeling is significantly decreased, whereby the response performance is deteriorated and the reliability of the product is lowered.

Therefore, the vent part 35 is formed around the central contact part 35 which is in contact with the keypad 50, and is formed around the product to smoothly release the air pressure in the metal dome switch 30 to improve the feeling of click and response. Will increase your trust. In this case, as shown in FIG. 4, the vent part 35 is more symmetrically formed on the basis of a vertical line V crossing the center of the metal dome switch 30 having a transverse narrow narrow shape. Preferably, it is more preferably formed so as to be symmetrical to the horizontal line (H) while being symmetrical to the vertical line (V) of the metal dome switch 30 so as not to be biased back and forth.

Here, the vent holes 35a of the vent part 35 may be formed one by one on the left and right on the basis of the vertical line (V) (refer to (b) of FIG. 4) and may be formed by a plurality of two or more left and right, (See Fig. 4 (a)) Also, one by one left and right, it can be formed into a hole of a rectangular shape (which can be formed in a rectangular arc shape) of long length before and after (see Fig. 4 (c)). Further, although not shown in the accompanying drawings, it is also possible to be formed to be radially symmetrical around the ridge of the central contact portion.

Therefore, when the keypad 50 is pushed, the central contact portion 32 of the metal dome switch 30 is lowered by the pushing pressure, and the air pressure generated at this time is discharged to the upper side through the vent hole 35a. When the pushing pressure is released, the central contact part 32 of the metal dome switch 30 is raised by the elastic force of the return part 34, and the air pressure generated at this time is introduced into the air through the vent hole 35a.

In other words, the air pressure inside the metal dome switch 30 is distributed to the inside and outside through the vent hole 35a when pushing and releasing the push to improve the responsiveness of the metal dome switch 30, and the metal dome Considering that the switch 30 has a weight of about 150 to 220 mg, an additional effect that can be produced in accordance with the weight within the reference value by forming an appropriate number of vents 35a can be expected. Furthermore, the vents 35 (vents 35a) are arranged in a symmetrical form so that the central contact portion is pressed by a constant load no matter which direction is pressed during the pushing operation of the keypad 50. As a result, the metal dome switch 30 may be evenly pressed in any direction with respect to the pressurized load to ensure the operation reliability, thereby maintaining the response performance more excellently.

In addition, the metal dome switch 30 is generally formed by pressing a metal plate with a press, and has a vertical height of about 0.35 to 0.4 mm in consideration of the slimming of the product and the responsiveness of the metal dome switch. As such, when the metal dome switch has a high degree of fineness, there is a limit to precision machining with a press, and in particular, in the case of a circular dome, there is a problem in that machining precision is further reduced.

Therefore, in the present invention, as described above, the shape of the metal dome switch 30 has a length that is extended to the horizontal line (H) rather than a circular dome shape by the horizontal light narrow (협), as shown in FIG. As described above, by forming a skirt 36 having a larger inclination angle at the end of the outer contact portion 33, press precision machining that satisfies the above numerical value is possible as compared with a simple dome shape. In addition, the skirt 36 helps the upper elastic recovery force of the return unit 34 through the inclination angle with the return unit 34, and performs the function of the outer contact unit 33.

In addition, when the skirt 36 is not formed when a design change to increase the vertical height of the metal dome switch 30 is required, the outer contact portion 33 of the metal dome switch 30 should be expanded around. Therefore, the overall size of the metal dome switch 30 is increased, which causes a problem that the size of the mobile device must be expanded, but the present invention is the vertical height of the metal dome switch 30 through the skirt 36 Can be satisfied. In addition, the skirt 36 is preferably formed at each end of the outer contact portion 33 which is symmetrical with the vertical line V of the metal dome switch 30 to smoothly recover the elasticity of the return portion 34.

On the other hand Figure 7 shows a further modified example of the vent in the metal dome switch according to the present invention, the vent 35 is the lateral direction of the main body 31, both sides or longitudinal direction It consists of the ventilation groove | channel 35b of the shape which cut out both sides or both sides of all these directions concave. That is, the ventilation groove 35b is a groove shape in which each side portion of the transverse narrow-shaped main body 31 is recessed inwardly inwardly, that is, the return portion 34 is reduced by reducing the area of the return portion 34. And a support part 34a for connecting the outer contact part 33 to each other, and a ventilation groove 35b is arranged between the support parts 34a.

Therefore, as well as relieve the air pressure in the metal dome switch 30, as well as reducing the area of the return portion 34, the support portion 34a formed on the return portion 34 during the pushing operation of the keypad 50 metal dome switch ( When the keypad 50 is pushed with a small force by increasing the elastic sensitivity of 30), the metal dome switch 30 may be pressurized, thereby reducing the pressurization load of the keypad 50 to ensure user convenience and a feeling of click. In addition, it is possible to improve the response performance more effectively by improving. Furthermore, the ventilation groove 35b can reduce the weight of the metal dome switch 30 in the form of weight loss, which can reduce the size of the product, and can also reduce the material, thereby achieving an additional and advantageous effect of improving economics. Will be.

 1, 5 and 6 in the mobile device equipped with a metal dome switch according to the present invention, the fixing sheet 40 has a mounting portion (41a) for accommodating the metal dome switch 30 It comprises a base film 41 having. That is, the base film 41 is for fixing the front, rear, left, and right sides of the metal dome switch 30 arranged on the inner and outer contact portions 21 and 22 of the PC 20, and the edge of the metal dome switch 30. The mounting portion 41a is formed in accordance with the above, and an adhesive is applied to the lower surface thereof, and then attached to the upper surface of the PC 20, and then the metal dome switch is mounted on the mounting portion 41a of the base film 41. (30) will be seated.

As shown in FIG. 6, the fixing sheet 40 is arranged on the inner and outer contact portions 21 and 22 of the PC 20 and fixed to the metal dome back, front, left, and right by the base film 41. It may further comprise a top film 42 for covering and fixing the top of the switch 30, the size of the top film 42 is the same as the top area of the PC 20 or arranged metal dome switch ( 30) and cover the metal dome switch 30 fixed by the base film 41, and the upper surface portion of the base film 41 is covered with an adhesive. Attached. 1, 5 and 6 in the mobile device equipped with a metal dome switch according to the present invention, the keypad 50 is respectively arranged on the metal dome switch 30, the necessary use It is made of a plurality of keys 51 engraved with a variety of letters or patterns according to the above, each key 51 may be formed integrally with the keypad 50 or bonded to the upper portion of the keypad 50, etc. In this case, it is preferable to be formed integrally with the keypad 50 in consideration of productivity or the degree of attachment by frequent touch of the keypad 50.

Although the above descriptions omit conventional well-known techniques related to mobile devices, especially mobile phones, those skilled in the art can easily infer, infer, and reproduce them.

In the above description of the present invention, a sliding type mobile device having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified and changed by those skilled in the art. It should be interpreted as being within the scope of protection.

Claims (10)

1. A frame including a fixed plate and a moving plate arranged on the fixed plate and slidably moved;

   Spring module; And

   And a connecting means for coupling both ends of the first and second springs to the two plates.
2. The method of claim 1,

   The spring module consists of first and second springs,

   The first spring is extinguished when the opening and closing of the movable plate is completed,

   The second spring is a sliding type mobile device, characterized in that it always maintains elasticity.
3. The method of claim 1, wherein the connecting means

   A sliding type mobile device, comprising: a connecting member coupled to each end of the first and second springs, the connecting member having a fixing part having a fixing hole, and a fixing pin coupled to the fixing hole.
4. The method of claim 3, wherein the connecting member

   A flat part facing the inner surface of each plate and connected to the fixing part;

   It extends to both sides of the flat portion, and has a bent portion that is crimped after bending,

   Both end portions of the first and second springs are contact-fixed by the flat portion and the bent portion, respectively.
5. The method according to claim 3 or 4,

   And a fixing hole of the connection member fixing portion to which the fixing pin is inserted is arranged at an eccentric position on an imaginary straight line connecting both collecting points of the first and second springs.
6. The method according to any one of claims 1 to 4,

   The coupling plate is formed on the fixed plate and the movable plate, respectively, and an insertion hole, a locking hole, and a staying hole are formed to have a super middle powder shape continuously formed in an optical narrow size.

   The connecting means coupled to both ends of the spring module corresponds to the coupling portion, the sliding type mobile device, characterized in that the insertion portion, the retention portion, the engaging portion is formed on the base in the form of a light-negotiation of the vertical shape.
7. The method of claim 6,

   In order not to escape the retention portion of the connection means located in the retention hole of the coupling portion,

   One end of the spring protrudes toward the movable plate, the other end of the spring is sliding type mobile device characterized in that protrudes toward the fixed plate.
8. The method according to any one of claims 1 to 4,

   A PCB mounted on the frame and having internal and external contact parts;

   A main body arranged above the PCB,

   A central contact portion arranged in the central portion of the main body and connected to an internal contact portion of the PCB;

   An outer contact portion arranged at both sides of the main body and connected to an outer contact portion of the PCB; and

   A metal dome switch formed in the main body and including a plurality of vents arranged around the central contact part;

   A fixing sheet having a mounting portion for accommodating the metal dome switch; And

   And a keypad arranged above the metal dome switch.
9. The method of claim 8, wherein in the metal dome switch

   And the vents are arranged in mutually symmetrical positions.
10. The method of claim 8, wherein in the metal dome switch

    The main body is made of a transverse narrow narrow shape,

    The ventilating portion is a sliding type mobile device, characterized in that the ventilation grooves in the form of a concave inwardly in the transverse both sides or longitudinal both sides of the main body, or both sides in all of these directions concave inwardly.

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