Patent Publication Number: US-11646512-B2

Title: Contact

Description:
TECHNICAL FIELD 
     The present invention relates to a contact. 
     BACKGROUND ART 
     There is known a contact used in EMC (electromagnetic compatibility) countermeasures of electronic circuit boards. A contact described in Patent Document 1 is surface mounted on a first member (for example, electronic circuit board) and is in pressurized contact with a second member (for example, a panel of a chassis) at an elastic contacting portion, to electrically connect the first member with the second member. 
     CITATION LIST 
     Patent Document 
     Patent Document 1: Japanese Unexamined Patent Publication No. 2014-29809 
     SUMMARY OF INVENTION 
     Technical Problem 
     In such aforementioned contact, the elastic contacting portion may be configured by a band-shaped sheet metal in which an elastic contacting portion extends from a base portion. In this case, if the elastic contacting portion extends from a location contacting the first member, solder melting in the soldering process may enter into a location being a boundary of the base portion and the elastic contacting portion, and form a solder fillet at a position contacting the elastic contacting portion. Once in such a condition, the elastic contacting portion is restricted by the solder fillet. This may prevent the spring property from being effective as designed. 
     In one aspect of the present disclosure, it is desirable to provide a contact that can hold down effects caused by the solder even if the elastic contacting portion extends from a location contacting the first member. 
     Solution to Problem 
     One aspect of the present disclosure is a contact capable of electrically connecting a first member and a second member, the contact comprising: a base portion; an elastic contacting portion; and a gap forming portion. The base portion is configured solderable on a component mounting surface of the first member. The elastic contacting portion is configured elastically deformable and relatively swingable with respect to the base portion, and, when contacting a contacted surface of the second member, is configured to elastically deform to be in pressurized contact with the contacted surface. The gap forming portion is formed integrally with the base portion and the elastic contacting portion, and is configured to connect with the base portion at a first end portion and connect with the elastic contacting portion at a second end portion on an opposite side of the first end portion, wherein the first end portion and the second portion have a concave portion provided therebetween, and the gap forming portion is configured to have a gap between the concave portion and the component mounting surface when the base portion is soldered on the component mounting surface in a state in which the concave portion and the component mounting surface are oriented to face each other. 
     According to the contact as configured as such, a gap forming portion is provided between the base portion and the elastic contacting portion, and when the base portion is soldered on the component mounting surface, a gap is formed between the first member and a concave portion of the gap forming portion. Therefore, when the base portion is soldered on the first member, even if the solder melts between the base portion and the first member, it is extremely low in possibility that the molten solder reaches the elastic contacting portion overwhelming the location of the gap. Accordingly, it is possible to prevent a solder fillet from forming at one end of the elastic contacting portion, thus allowing for the elastic contacting portion to function with the spring property as designed. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1 A  is a perspective view of a contact of a first embodiment viewed from an upper right front side.  FIG.  1 B  is a perspective view of the contact of the first embodiment viewed from an upper left rear side.  FIG.  1 C  is a perspective view of the contact of the first embodiment viewed from a lower right rear side.  FIG.  1 D  is a perspective view of the contact of the first embodiment viewed from a lower left front side. 
         FIG.  2 A  is a plan view of the contact of the first embodiment.  FIG.  2 B  is a front view of the contact of the first embodiment.  FIG.  2 C  is a right side view of the contact of the first embodiment.  FIG.  2 D  is a rear view of the contact of the first embodiment.  FIG.  2 E  is a bottom view of the contact of the first embodiment.  FIG.  2 F  is a cross-sectional view of a cross section taken on line IIF-IIF in  FIG.  2 B . 
         FIG.  3 A  is a cross-sectional view illustrating the contact of the first embodiment soldered on a first member at a second bonding surface.  FIG.  3 B  is a cross-sectional view illustrating a state in which the contact of the first embodiment soldered on the first member at the second bonding surface is in pressurized contact with the second member. 
         FIG.  4 A  is a cross-sectional view illustrating the contact of the first embodiment soldered on the first member at the first bonding surface.  FIG.  4 B  is a cross-sectional view illustrating a state in which the contact of the first embodiment soldered on the first member at the first bonding surface is in pressurized contact with the second member. 
         FIG.  5 A  is a cross-sectional view illustrating the contact of the first embodiment soldered on the first member at a third bonding surface.  FIG.  5 B  is a cross-sectional view illustrating a state in which the contact of the first embodiment soldered on the first member at the third bonding surface is in pressurized contact with the second member. 
         FIG.  6 A  is a plan view illustrating the contact of the first embodiment viewed from a direction perpendicular to a component mounting surface.  FIG.  6 B  is an enlargement of part VIB illustrated in  FIG.  6 A . 
         FIG.  7 A  is a perspective view of a contact of a second embodiment viewed from an upper right front side.  FIG.  7 B  is a perspective view of the contact of the second embodiment viewed from an upper left rear side.  FIG.  7 C  is a perspective view of the contact of the second embodiment viewed from a lower right rear side.  FIG.  7 D  is a perspective view of the contact of the second embodiment viewed from a lower left front side. 
         FIG.  8 A  is a plan view of the contact of the second embodiment.  FIG.  8 B  is a front view of the contact of the second embodiment.  FIG.  8 C  is a right side view of the contact of the second embodiment.  FIG.  8 D  is a rear view of the contact of the second embodiment.  FIG.  8 E  is a bottom view of the contact of the second embodiment.  FIG.  8 F  is a cross-sectional view of a cross section taken on line VIIIF-VIIIF in  FIG.  8 B . 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Next describes the aforementioned contact by raising an illustrative embodiment. 
     (1) First Embodiment 
     [Configuration of Contact] 
     In the following description, a direction in which a part shown in the plan view of  FIG.  2 A  is oriented is defined as up, a direction in which a part shown in the front view of  FIG.  2 B  is oriented is defined as front, a direction in which a part shown in the right side view of  FIG.  2 C  is oriented is defined as right, the opposite direction of right is defined as left, a direction in which a part shown in the rear view of  FIG.  2 D  is oriented is defined as rear, and a direction in which a part shown in the bottom view of  FIG.  2 E  is oriented is defined as down. However, these directions are merely directions defined for concisely describing relative positions of each portion configuring a contact  1 . Therefore, in which direction the contact  1  is oriented for example at a time of shipping, using or the like of the contact  1  is undetermined. A left side view of the contact  1  is represented as symmetrical to its right side view. 
     The contact  1  illustrated in  FIGS.  1 A,  1 B,  1 C, and  1 D  includes a base portion  3 , an elastic contacting portion  5 , and a gap forming portion  7 . The base portion  3 , the elastic contacting portion  5  and the gap forming portion  7  are formed integrally by a metal thin plate (in the present embodiment, a thin plate of beryllium copper for a spring with reflow tin plating). 
     The base portion  3  is a part secured with a rigidity of a degree that substantially does not cause deformation even if outer force assumed at the time of using the contact  1  is applied. The base portion  3  has, as illustrated in  FIGS.  2 A,  2 B,  2 C,  2 D,  2 E  and the like, a bottom plate portion  11 , a left wall portion  13 , a right wall portion  15 , a rear wall portion  17 , and a top plate portion  19 . The left wall portion  13  bends from a left end of the bottom plate portion  11  and extends upwards. The left wall portion  13  is formed having a left opening  13 A. The right wall portion  15  bends from a right end of the bottom plate portion  11  and extends upwards. The right wall portion  15  is formed having a right opening  15 A. 
     The rear wall portion  17  bends from a rear end of the bottom plate portion  11  and extends upwards. The rear wall portion  17  is provided with a left protruding piece  17 A protruding in a left direction from a left end of the rear wall portion  17 , and a right protruding piece  17 B protruding in a right direction from a right end of the rear wall portion  17 . The left protruding piece  17 A abuts a rear end of the left wall portion  13  at its front surface. The right protruding piece  17 B abuts a rear end of the right wall portion  15  at its front surface. The top plate portion  19  bends from an upper end of the rear wall portion  17  and extends forwards. The top plate portion  19  is provided with a left folding piece  19 A extending leftwards from a left end of the top plate portion  19  and bending downwards at the left end then folding back rightwards, and a right folding piece  19 B extending rightwards from a right end of the top plate portion  19  and bending downwards at the right end then folding back leftwards. The left folding piece  19 A abuts an upper end of the left wall portion  13  at its lower surface. The right folding piece  19 B abuts an upper end of the right wall portion  15  at its lower surface. 
     The elastic contacting portion  5  is a part that elastically deforms upon receiving outer force intended at the time of using the contact  1 . The elastic contacting portion  5  is configured relatively swingable with respect to the base portion  3 . The elastic contacting portion  5  is configured of a band-shaped sheet metal extending in a band shape from the gap forming portion  7 . More specifically, the elastic contacting portion  5  has, as illustrated in  FIG.  2 F  and the like, a first inclined portion  21 , a front end folded portion  22 , a second inclined portion  23 , a front wall portion  24 , a third inclined portion  25 , a rear end bent portion  26 , and a projecting portion  27 . 
     The first inclined portion  21  extends towards a diagonally lower front direction from the gap forming portion  7 . The front end folded portion  22  is configured bending downwards from a front end of the first inclined portion  21  and folding diagonally upwards towards the rear. Namely, the front end folded portion  22  is formed by the aforementioned band-shaped sheet metal being folded about a center of curvature being an axis parallel to a width direction of the band-shaped sheet metal (left-right direction in the drawing). This front end folded portion  22  configures a protruding direction tip portion of the elastic contacting portion  5 . The second inclined portion  23  extends diagonally upwards towards the rear from the front end folded portion  22 . 
     The front wall portion  24  bends from a rear end of the second inclined portion  23  and extends downwards. The front wall portion  24  is provided with, as illustrated in  FIGS.  2 B,  2 C,  2 D  and the like, a left restricting piece  24 A protruding leftwards from a left end of the front wall portion  24 , and a right restricting piece  24 B protruding rightwards from a right end of the front wall portion  24 . The left restricting piece  24 A is arranged at a position penetrating through the left wall portion  13  through the left opening  13 A. The right restricting piece  24 B is arranged at a position penetrating through the right wall portion  15  through the right opening  15 A. When the elastic contacting portion  5  swings, a movable range of the left restricting piece  24 A is restricted to within a range of the left opening  13 A, and a movable range of the right restricting piece  24 B is restricted to within a range of the right opening  15 A. The third inclined portion  25  bends from a lower end of the front wall portion  24  and extends diagonally upwards toward the rear. The rear end bent portion  26  is configured in such a manner that a part extending from a rear end of the third inclined portion  25  bends upwards. The projecting portion  27  is provided around the protruding direction tip portion of the elastic contacting portion  5 . 
     The base portion  3  has, as illustrated in  FIGS.  1 A,  1 B,  1 C, and  1 D , a first bonding surface  31 , a second bonding surface  32 , and a third bonding surface  33 . The first bonding surface  31  is an upper surface of the top plate portion  19 . The second bonding surface  32  is a lower surface of the bottom plate portion  11 . The third bonding surface  33  is a rear surface of the rear wall portion  17 . The first bonding surface  31  and the second bonding surface  32  are arranged parallel to each other, and are oriented in opposite directions (upper and lower in the drawing). The third bonding surface  33  is oriented in a direction perpendicular to (rear of in the drawing) the directions in which the first bonding surface  31  and the second bonding surface  32  are oriented (upper and lower in the drawing). The elastic contacting portion  5  is provided with a flat surface  34 . The flat surface  34  is a front surface of the front wall portion  24 . The third bonding surface  33  and the flat surface  34  are arranged parallel to each other and oriented in opposite directions (left side and right side in the drawing). 
     The contact  1  is configured solderable by using any one of the first bonding surface  31 , second bonding surface  32  and third bonding surface  33 .  FIGS.  3 A and  3 B  illustrate the contact  1  soldered on a component mounting surface  91 A of a first member  91  by using the second bonding surface  32 . In a case in which the second bonding surface  32  is soldered on the component mounting surface  91 A, the first bonding surface  31  may be used as a suction surface for sucking with a suction nozzle of an automatic mounting machine. In the case in which the contact  1  is soldered on the first member  91  at the second bonding surface  32 , when any one of the first member  91  and the second member is relatively moved with respect to the other from a position illustrated in  FIG.  3 A  to a position illustrated in  FIG.  3 B , the elastic contacting portion  5  is in pressurized contact at the projecting portion  27  with a contacted surface  92 A of the second member  92 . 
       FIGS.  4 A and  4 B  illustrate the contact  1  soldered on the component mounting surface  91 A of the first member  91  by using the first bonding surface  31 . In a case in which the first bonding surface  31  is soldered on the component mounting surface  91 A, the second bonding surface  32  may be used as the suction surface for sucking with a suction nozzle of an automatic mounting machine. In the case in which the contact  1  is soldered on the first member  91  at the first bonding surface  31 , when any one of the first member  91  and the second member  92  is relatively moved with respect to the other from a position illustrated in  FIG.  4 A  to a position illustrated in  FIG.  4 B , the elastic contacting portion  5  is in pressurized contact at the projecting portion  27  with the contacted surface  92 A of the second member  92 . 
     The gap forming portion  7  is configured connecting to the base portion  3  at a first end portion  7 A, and connecting to the elastic contacting portion  5  at a second end portion  7 B on the opposite side of the first end portion  7 A. In the gap forming portion  7 , a concave portion  7 C is provided between the first end portion  7 A and the second end portion  7 B, as illustrated in  FIGS.  4 A and  4 B . The concave portion  7 C is of a shape whose lower surface in the drawing is concaved upwards; when the base portion  3  is soldered on the component mounting surface  91 A of the first member  91  by using the first bonding surface  31 , the concave portion  7 C and the component mounting surface  91 A are in a state oriented to face each other, and a gap  41  is created between the concave portion  7 C and the component mounting surface  91 A. 
     Accordingly, when soldering the contact  1  on the first member  91 , even if the solder melts between the first bonding surface  31  and the component mounting surface  91 A of the first member  91 , the molten solder can be prevented from reaching the second edge  7 B side by overwhelming the gap  41 . Accordingly, it is possible to prevent a solder fillet from forming at a lower end of the elastic contacting portion  5  by the gap forming portion  7 , thus allowing for the elastic contacting portion  5  to function with the spring property as designed. 
       FIGS.  5 A and  5 B  illustrate the contact  1  soldered on the component mounting surface  91 A of the first member  91  by using the third bonding surface  33 . In a case in which the third bonding surface  33  is soldered on the component mounting surface  91 A, the flat surface  34  of the elastic contacting portion  5  may be used as the suction surface for sucking with a suction nozzle of an automatic mounting machine. In the case in which the contact  1  is soldered on the first member  91  at the third bonding surface  33 , when any one of the first member  91  and the second member  92  is relatively moved with respect to the other from a position illustrated in  FIG.  5 A  to a position illustrated in  FIG.  5 B , the elastic contacting portion  5  is in pressurized contact at the projecting portion  27  with the contacted surface  92 A of the second member  92 . 
     As illustrated in  FIG.  4 B , in a case in which the elastic contacting portion  5  is in pressurized contact with the contacted surface  92 A arranged perpendicular to the component mounting surface  91 A, the closer a mounted position of the contact  1  on the component mounting surface  91 A is to the contacted surface  92 A, the larger a magnitude Fx of a force applied on the contacted surface  92 A from the elastic contacting portion  5  is. When the force applied on the contacted surface  92 A from the elastic contacting portion  5  is too small, electric resistance between the contact  1  and the contacted surface  92 A increases. On the other hand, if the force applied on the contacted surface  92 A from the elastic contacting portion  5  is too large, load is applied on a soldered location between the contact  1  and the first member  91 ; this may cause breakage of the soldered part or the first member  91 . 
     On this account, when the elastic contacting portion  5  is mounted on the component mounting surface  91 A, it is recommended to mount the contact  1  at a position in which the magnitude Fx of the force applied on the contacted surface  92 A from the elastic contacting portion  5  is not less than a lower limit value Fmin and not more than an upper limit value Fmax each defined in advance. The lower limit value Fmin and the upper limit value Fmax may be determined as appropriate depending on the size and use of the contact  1 . However, in terms of preventing the electric resistance between the contact  1  and the contacted surface  92 A from becoming in excess, the lower limit value Fmin is preferably not less than 0.1 N. Moreover, in terms of preventing excess load from being applied on the soldered location between the contact  1  and the first member  91 , the upper limit value Fmax is preferably not more than 30 N. 
     The numerical range from the lower limit value Fmin to the upper limit value Fmax may be a further narrowed numerical range as long as the range is within the numerical range of 0.1 N to 30 N described above. For example, in the case of the contact  1  of the present embodiment, recommended values for the lower limit value Fmin is 10 N and for the upper limit value Fmax is 20 N, in relationship to a spring constant of the elastic contacting portion  5 .  FIGS.  6 A and  6 B  illustrate the protruding direction tip portion and a protruding portion of the elastic contacting portion  5  viewed from a direction perpendicular to the component mounting surface  91 A, in a state in which the elastic contacting portion  5  contacts the contacted surface  92 A by the force of the magnitude Fx within the numerical range from the recommended lower limit value Fmin to the upper limit value Fmax. 
     The contact  1  of the present embodiment, in a case of viewing from the direction illustrated in  FIGS.  6 A and  6 B , is configured in such a manner that a position of an apex P 1  of the projecting portion  27  (x1, y1) and a position of an edge P 2  of the protruding direction tip portion of the elastic contacting portion  5  (x2, y2) are arranged at positions satisfying a distance A=x2−x1, a protruding height B=y2−y1, B/A&gt;tan 5°, wherein a width direction of the elastic contacting portion  5  perpendicular to the protruding direction of the projecting portion  27  is an x-axis direction, and the protruding direction of the projecting portion  27  is a y-axis direction. In a state illustrated in  FIG.  6 B , a degree θ in the drawing is approximately 8°, and B/A≈ tan 8° s. 
     When the aforementioned distance A and the protruding height B are configured to satisfy B/A&gt;tan 5°, even if a θ shift occurs within a range of ±5 degrees at the time of mounting the contact  1 , the elastic contacting portion  5  can suitably be in pressurized contact with the mounted surface of the second member  92  at the projecting portion  27 . The θ shift in this specification is a shift in an angle of the mounting position of the contact  1  in a rotating direction whose center of rotation is an axis extending in the up-down direction in the drawing. 
     In a case in which the protruding height B of the projecting portion  27  is excessively small and is B/A≤tan 5°, just a θ shift occurs within the range of ±5 degrees at the time of mounting the contact  1 , and the edge P 2  of the elastic contacting portion  5  (see  FIG.  6 B ) contacts the contacted surface  92 A. Moreover, even in a case in which the aforementioned distance A is excessively large and is B/A≤tan 5°, just a θ shift occurs within the range of ±5 degrees at the time of mounting the contact  1 , and the edge P 2  of the elastic contacting portion  5  contacts the contacted surface  92 A. Therefore, to make the elastic contacting portion  5  be suitably in pressurized contact with the mounted surface of the second member  92  at the projecting portion  27 , the lower limit value Fmin and the upper limit value Fmax as described above is to be selected upon assuming a used state of the contact  1 , and the distance A and the protruding height B described above is to be set to satisfy B/A&gt;tan 5° in a case in which the elastic contacting portion  5  contacts the contacted surface  92 A with the force of the magnitude Fx within the numerical range of from the lower limit value Fmin to the upper limit value Fmax. 
     In the case of the present embodiment, the projecting portion  27  is provided at a center in the width direction of the protruding direction tip portion of the elastic contacting portion  5 . Therefore, although  FIGS.  6 A and  6 B  illustrate an edge at the right front end of the elastic contacting portion  5 , even when an edge at a left front end of the elastic contacting portion  5  is intended, the distance A will be of equal length as with the case of intending the edge at the right front end of the elastic contacting portion  5 . In a case in which the projecting portion  27  is biased to the left than the center in the width direction at the protruding direction tip portion of the elastic contacting portion  5 , the distance A described above is to be of a distance intending the edge of the right front end of the elastic contacting portion  5 . In a case in which the projecting portion  27  is biased to the right than the center in the width position at the protruding direction tip portion of the elastic contacting portion  5 , the distance A described above is to be of a distance intending the edge of the left front end of the elastic contacting portion  5 . 
     [Effect] 
     According to the contact  1  described above, the gap forming portion  7  is provided between the base portion  3  and the elastic contacting portion  5 , and when the base portion  3  is soldered on the component mounting surface  91 A, the gap  41  is formed between the concave portion  7 C of the gap forming portion  7  and the first member  91 . Therefore, when the base portion  3  is soldered on the first member  91 , even if the solder melts between the base portion  3  and the first member  91 , it is extremely low in possibility that the molten solder reaches the elastic contacting portion  5  by overwhelming the position of the gap  41 . Accordingly, it is possible to prevent a solder fillet from forming at one end of the elastic contacting portion  5 , thus allowing for the elastic contacting portion  5  to function with the spring property as designed. 
     Moreover, in the case of the contact  1  described above, the aforementioned distance A and the protruding height B of the projecting portion  27  are configured to satisfy B/A&gt;tan 5°; hence, even if the θ shift occurs within the range of ±5 degrees at a mounted position of the contact  1 , the projecting portion  27  can contact the contacted surface  92 A of the second member  92  properly. 
     Moreover, the contact  1  described above has the first bonding surface  31 , the second bonding surface  32 , and the third bonding surface  33 ; hence, it is possible to solder the contact  1  on the component mounting surface  91 A of the first member  91  upon orienting the contact  1  to any one of the three types of directions, to solder. Even further, any one of the second bonding surface  32 , the first bonding surface  31 , and the flat surface  34  may be used as the aforementioned suction surface; in a case in which the contact  1  is soldered by being oriented to any one of the three directions described above, it is possible to mount the contact  1  on the component mounting surface  91 A with an automatic mounting machine. 
     (2) Second Embodiment 
     Next describes a second embodiment. The second embodiment just modifies one portion of the configuration illustrated in the first embodiment. Therefore, mainly the differences from the first embodiment will be described in detail, and descriptive explanations for parts similar to the first embodiment will be omitted. 
     A contact  51  illustrated in  FIGS.  7 A,  7 B,  7 C,  7 D,  8 A,  8 B,  8 C,  8 D,  8 E, and  8 F  include the base portion  3 , an elastic contacting portion  53 , and the gap forming portion  7 . The base portion  3  and the gap forming portion  7  are completely the same as the contact  1  of the first embodiment. On the other hand, the elastic contacting portion  53  differs from the elastic contacting portion  5  of the first embodiment in one portion of its shape. More specifically, in the case of the contact  51  of the second embodiment, the elastic contacting portion  53  is configured in such a manner that, as illustrated in  FIG.  8 A , in one portion including the protruding direction tip portion of the elastic contacting portion  53 , a width W 1  being that one portion is narrower than a width W 2  of the other parts excluding the one portion. 
     By employing such a configuration, even if the width W 2  of the elastic contacting portion  53  is the same as the elastic contacting portion  5  of the first embodiment, the width W 1  at the protruding direction tip portion of the elastic contacting portion  53  becomes narrower than the width W 2 . Therefore, the distance A=x2−x1 described in the first embodiment becomes shorter than the elastic contacting portion  5  of the first embodiment, and B/A becomes a larger value. Accordingly, with the contact  51  of the second embodiment, a further greater θ shift is allowable than the contact  1  of the first embodiment. 
     Moreover, although the protruding direction tip portion of the elastic contacting portion  53  is configured with the width W 1 , components other than the protruding direction tip portion are configured with the width W 2 . Therefore, different from the case in which the entire elastic contacting portion  53  is in the width W 1 , it is possible to prevent weakening of elastic force of the elastic contacting portion  53 . Namely, making just the protruding direction tip portion of the elastic contacting portion  53  be the width W 1  allows for addressing greater θ shifts without reducing the elastic force of the elastic contacting portion  53 . 
     (3) Other Embodiments 
     The above describes the contact of the present disclosure by raising illustrative embodiments, however the aforementioned embodiments merely illustrate one aspect of the present disclosure. Namely, the present disclosure is not limited to the aforementioned illustrative embodiments, and may be implemented in various forms within a range not departing from the technical idea of the present disclosure. 
     For example, in the above embodiments, the base portion  3  is provided with the first bonding surface  31 , the second bonding surface  32  and the third bonding surface  33 ; regarding the second bonding surface  32  and the third bonding surface  33 , one of either may be not provided, or both may not be provided. 
     Moreover, in the above embodiments, regarding the shape of the concave portion  7 C of the gap forming portion  7 , a shape drawing an arc when viewed from the left-right direction was illustrated as one example, however the shape of the concave portion  7 C is not limited to the shape as illustrated. Namely, the concave portion  7 C may be any shape, as long as a desired gap  41  is formed when the concave portion  7 C and the component mounting surface  91 A are oriented to face each other. 
     Other than the above, a function achieved by one component in the above embodiments may be configured to be achieved by a plurality of components. Moreover, a function achieved by a plurality of components may be achieved by one component. Moreover, one portion of the configuration of the above embodiments may be omitted. Moreover, at least one portion of the configuration of the above embodiments may be added, substituted or the like to the configuration of another one of the above embodiments. 
     (4) Supplement 
     As obvious from the illustrated embodiments described above, the contact of the present disclosure may further include the following configurations. 
     In one aspect of the present disclosure, the elastic contacting portion may be configured capable of being in pressurized contact with a contacted surface, at a projecting portion provided around a protruding direction tip portion. In a case in which the base portion is soldered on the component mounting surface and the elastic contacting portion is in pressurized contact with a contacted surface arranged perpendicular to the component mounting surface, and in a state in which a magnitude Fx of a force applied on the contacted surface from the elastic contacting portion is not less than a lower limit value Fmin and not more than an upper limit value Fmax set in advance (however, Fx, Fmin and Fmax are values satisfying 0.1≤Fmin≤Fx≤Fmax≤30, and the unit being N), a position of an apex of the projecting portion (x1, y1) and a position of an edge of the protruding direction tip portion of the elastic contacting portion (x2, y2) may be arranged at positions satisfying distance A=x2−x1, protruding height B=y2−y1, B/A&gt;tan 5°, wherein a width direction of the elastic contacting portion perpendicular to the protruding direction of the projecting portion is an x-axis direction, and the projecting direction of the projecting portion is the y-axis direction, viewing the elastic contacting portion from a direction perpendicular to the component mounting surface. 
     In one aspect of the present disclosure, the elastic contacting portion may be configured in such a manner that, in one portion including the protruding direction tip portion of the elastic contacting portion, a width of a band-shaped sheet metal is narrowed more than a part other than the one portion. 
     In one aspect of the present disclosure, the base portion has the first bonding surface and the second bonding surface, and may be configured to have a gap between the concave portion and the component mounting surface in a case in which the first bonding surface is used to be soldered on the component mounting surface. The first bonding surface and the second bonding surface are arranged in parallel and oriented in directions opposite each other, and among the first bonding surface and the second bonding surface, in a case in which any one of the bonding surfaces is soldered on the component mounting surface, the other one of the bonding surfaces may be configured usable as a suction surface for sucking with a suction nozzle of an automatic mounting machine. 
     In one aspect of the present disclosure, the base portion may have a third bonding surface oriented in a direction perpendicular to the directions in which the first bonding surface and the second bonding surface are oriented. The elastic contacting portion is provided with a flat surface arranged parallel to the third bonding surface and oriented in a direction opposite to the third bonding surface; in a case in which the third bonding surface is soldered on the component mounting surface, the flat surface may be configured usable as a suction surface for sucking with a suction nozzle of an automatic mounting machine. 
     REFERENCE SIGNS 
     
         
         
           
               1 ,  51  . . . Contact,  3  . . . Base portion,  5 ,  53  . . . Elastic contacting portion,  7  . . . Gap forming portion,  7 A . . . First end portion,  7 B . . . Second end portion,  7 C . . . Concave portion,  11  . . . Bottom plate portion,  13  . . . Left wall portion,  13 A . . . Left opening,  15  . . . Right wall portion,  15 A . . . Right opening,  17  . . . Rear wall portion,  17 A . . . Left protruding piece,  17 B . . . Right protruding piece,  19  . . . Top plate portion,  19 A . . . Left folding piece,  19 B . . . Right folding piece,  21  . . . First inclined portion,  22  . . . Front end folding portion,  23  . . . Second inclined portion,  24  . . . Front wall portion,  24 A . . . Left restricting piece,  24 B . . . Right restricting piece,  25  . . . Third inclined portion,  26  . . . Rear curved portion,  27  . . . Projecting portion,  31  . . . First bonding surface,  32  . . . Second bonding surface,  33  . . . Third bonding surface,  34  . . . Flat surface,  41  . . . Gap,  91  . . . First member,  91 A . . . Component mounting surface,  92  . . . Second member,  92 A . . . Contacted surface, P 1  . . . Apex, P 2  . . . Edge.