the objects , characteristics and advantages of the above - described invention will be more clearly understood referring to the attached drawings . fig2 a is a plan view of one embodiment of the finger strip according to the present invention , and fig2 b is a sectional view of the finger strip which is cut along a line 2b -- 2b of fig2 a . actually , a plurality of finger strips are connected to each other through common base part . here , only one part is explained for illustrative purpose . referring to fig2 a and 2b , a finger strip 40 according to the present invention includes an elastic contact part 46 which is separately prolonged from a base unit 42 through a first connecting part 48 and a supporting unit 44 which is also separately prolonged from the base unit 42 through a second connecting part 47 . the base unit 42 , the first connecting part 48 prolonged from the base unit 42 , and the supporting unit 44 prolonged from the first connecting part 48 are shaped like a clip and they are fixed at the finger strip . in one embodiment , the first connecting part 48 is located between a pair of second connecting parts 47 . it is also possible to exchange positions of the first connecting part 48 and the second connecting part 47 . the first connecting part 48 has a predetermined curvature , and preferably , a projection 49 for increasing elasticity is formed on the surface of the first connecting part 48 . the projection 49 for increasing elasticity can be formed by coining the first connecting part 48 , or it can be newly attached to the first connecting part 48 . the first connecting part 48 is operated as a spring plate having a restoring force moving in a first direction , and it has a stronger restoring force by the operation of the projection 49 for increasing elasticity . moreover , the supporting unit 44 is prolonged from the first connecting part 48 so that the distance to the common base 42 is gradually decreased . a folding part 41 is formed at a predetermined position near the edge of the supporting unit 44 . at the outer surface of the folding part 41 , a stopper 45 is projected . the stopper 45 can be formed by pressing the folding part 41 to be projected toward the common base , or it can be newly attached to the folding part 41 . the base unit 42 , the second connecting part 47 prolonged from the base unit 42 , and an elastic contact part 46 prolonged from the second connecting part 47 are shaped like a pincette , and they are designed to absorb shock against the external force . the second connecting part 47 has the same curvature as the first connecting part 48 , and the elastic contact part 46 is prolonged from the second connecting part 47 so that the distance to the base unit 42 is gradually increased . accordingly , the second connecting part 47 is operated as a spring plate having a restoring force moving in a second direction which is opposite to the direction of the first connecting part 48 . in the finger strip according to the present invention , the end of the elastic contact part 46 has a predetermined curvature , and a guide unit 43 is prolonged from the elastic contact part 46 . the guide unit 43 has a predetermined length and has a predetermined angle capable of being matched with the shape of a guide projection of a front panel , which will be illustrated . referring to fig3 there is shown an embodiment of front panel having a proper structure capable of fixing the finger strip according to the present invention . as shown in fig3 a front panel 50 includes a front part 52 , a first side wall part 51 , and a second side wall part 53 . at the front part 52 , many display units showing the operating state of the modules and input / output terminals are formed . the first side wall part 51 is vertically prolonged from one end of the front part 52 , and as the length of the outer side is shorter than the inner side , the cross section of the end has a shape of scraper . the second side wall part 53 is vertically prolonged to the other end of the front part 52 . it has a strip escape preventing unit and a strip height fixing unit . the strip escape preventing unit receives the clip - shaped portion of the finger strip so that it cannot be escaped , and it is formed vertically to the front part 52 . the strip escape preventing unit has a fixing body 54 and a recess 58 which is formed on the outer surface of the fixing body and has a step 60 having a predetermined height at one end . the end of the fixing body 54 has a similar curvature as the first and second connecting parts . moreover , a rake angle is provided to form a step 59 at a position corresponding to the base unit of the finger strip on the inner side of the fixing body 54 . moreover , the outer surface from the end of the fixing body 54 to the recess 58 has a predetermined rake angle and the thickness of the body is gradually decreased . the shape of the recess 58 can be varied to other forms providing it can set the stopper or the folding part of the finger strip therein . preferably , it can be formed to attach the folding part of the finger strip and the edge to the fixing body . in this case , the thickness of the fixing body can be varied . the strip height fixing unit is actually prolonged parallel to the front part 52 , and it includes a guide unit 55 and a guide projection 56 which is vertically formed to the guide unit 55 . accordingly , a predetermined space part 57 is formed by the fixing body 54 of the strip escape preventing unit , the guide unit 55 of the strip height fixing unit , and the guide projection 56 . referring to fig4 a and 4b , the method for fixing the finger strip according to the present invention at the front panel will be described . first , when the end of the fixing body 54 of the second side wall part 53 of the front panel 50 faces toward a predetermined space between the supporting unit 44 and the base unit 42 of the finger strip 40 , and external force is pressed , the interval between the base unit 42 and the supporting unit 44 is widened , and the finger strip is inserted along with the fixing body 54 of the second side wall part 53 . at this time , after inserting the finger strip to some degree and the elastic contact part 46 of the finger strip is pressed , and then the first and second connecting parts of the finger strip are inserted until they are contacted with the end of the fixing body 54 . the structure after completing the insertion will be explained . first , the guide unit 43 of the finger strip 40 is completely inserted into the space part 57 under the guide projection 56 . although the restoring force by the second connecting part 47 affects the guide unit 43 , the guide unit 43 which is hindered by the guide projection 56 is eventually facing with the guide projection 56 by a predetermined force . moreover , the folding part 41 which is formed at the supporting unit 44 of the finger strip is completely received by the recess 58 of the fixing body 54 , and the stopper 45 is hooked by the step 60 of the recess 58 . the effect of the finger strip according to the present invention and the front panel structure mounting the same will be explained in detail . first , when adjacent modules are inserted , the clip - shaped part of the finger strip according to the present invention can prevent the escape of the finger strip , as the folding part formed at the supporting unit 44 is fixed at the recess formed at the fixing body 54 of the second side wall part of the front panel . the effect is enhanced by the operation of the stopper formed at the folding part . selectively , a rake angle can be formed so that a predetermined step is formed on the inner surface of the fixing body . after that , by placing the base unit of the finger strip at this rake angle , the finger strip is more stably fixed to the fixing body of the front panel . moreover , as the guide unit of the finger strip is arranged by pressing the guide projection of the second side wall part at a predetermined force , the elastic contact part of the finger strip always has a regular and same height h . in the case of inserting adjacent modules , as the guide unit is actually fixed by the guide projection , a 180 ° turn caused by the lift of the elastic contact part can be prevented . moreover , in the case that the guide unit is escaped , when the guide unit is inserted under the guide projection again , a predetermined force by the restoring force pushes the guide projection , thereby maintaining a predetermined height and enhancing the shielding effect . in the first side wall part of the front panel , as the length of the outer side is shorter than that of the inner side , the cross section of the end is shaped like a scraper . at this time , in the case of inserting module , the friction between the end and the elastic contact part of the finger strip of inserted adjacent module can be minimized , thereby minimizing the transformation of the elastic contact part . fig5 a to 5c are embodiments showing the modifications of the present invention . the shape of the guide projection can be formed as shown in fig5 a , which one side of the guide projection has an inclination . or , as shown in fig5 b , one side of the guide projection can have a predetermined curvature . at this time , the guide unit of the finger strip which is facing with the one side of the guide projection can be varied , suitably to the modifications . moreover , as shown in fig5 c , the folding part of the finger strip can be formed like a shape of semicircle . although the preferred embodiments of the present invention have been illustrative purposes , those skilled in the art will appreciate that various modifications , additions and substitutions are possible , without departing from the disclosed for scope and spirit of the invention as disclosed in the accompanying claims .