JP4229039B2 - Terminal board device - Google Patents

Description

  The present invention relates to a terminal plate device for caulking and fixing a connector.

  A conventional terminal board device will be described below with reference to the drawings. FIG. 11 is a cross-sectional view of a main part of a manufacturing facility in a conventional terminal board device, and FIG. 12 is a cross-sectional view of a shield case. First, the F plug 1 and the terminal plate 2 used in the conventional terminal plate apparatus will be described with reference to FIGS. 11 and 12, the F plug 1 includes a screw part 1a to which a cable from an antenna or the like is connected, a flange part 3 provided at the root of the screw part 1a, and a screw with respect to the flange part 3. It is comprised from the insertion part 4 provided in the other side of the part 1a. The insertion portion 4 has a cylindrical shape with a diameter of 9.1 mm and a thickness of 1.0 mm.

  On the other hand, the terminal plate 2 is provided with a round hole 5 into which the insertion portion 4 is inserted. An anti-rotation groove 6 is provided on the outer periphery of the round hole 5. These anti-rotation grooves 6 are provided on the outer periphery of the round hole 5 at intervals of 60 degrees, and the width of the anti-rotation grooves is 2.0 mm and the depth is 0.3 mm.

  The conventional terminal plate device 7 fixes the F plug 1 to the terminal plate 2 by inserting the insertion portion 4 of the F plug 1 into the round hole 5 and caulking the position corresponding to the rotation prevention groove 6. It was.

  Then, the manufacturing method of the conventional terminal board apparatus is demonstrated. Reference numeral 8 denotes a cradle, and a screw portion 1 a is inserted into the hole 9 of the cradle 8. And an insertion part was inserted in the round hole 5 of the terminal board 2, and the insertion part 4 was crimped by the crimping punch 10 provided above the hole 9 after that.

  FIG. 13 is a front view of a caulking punch 10 used in a manufacturing apparatus of a conventional terminal board device 7, and FIG. 14 is a cross-sectional view of the main part of the caulking portion. 13 and 14, the caulking punch 10 has a pressing portion 10a provided at a position corresponding to the rotation preventing groove, and the pressing portion 10a is inclined about 30 degrees in a direction in which the diameter decreases downward. ing. And the crimping part 8 is formed in the F plug 1 by crushing the insertion part 4 with this press part 10a. The width of the pressing portion 10 a is larger than the width of the rotation preventing groove 6, and the width of the caulking portion 8 is caulked so as to be larger than the width of the rotation preventing groove 6.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP-A-9-106863

  However, in such a conventional terminal plate apparatus, the caulking punch 10 is harder than the F plug 1 and the terminal plate 2, and the width of the terminal plate pressing portion 10a is larger than the width of the anti-rotation groove 6; Sometimes, pressure is applied to the corner 11 formed at the intersection of the round hole 5 and the rotation prevention groove 6. As a result, the corner portion 11 that is substantially sharp before caulking is deformed to be rounded. Accordingly, when a force in the rotation direction of the F plug 1 is applied to the terminal plate 2, the F plug is easily rotated by deformation of the corner portion 11 (FIG. 12). It had the problem of getting out of it.

  Accordingly, the present invention has been made to solve this problem, and an object of the present invention is to provide a terminal plate device in which the F plug is hard to come off from the terminal plate with respect to the force in the rotation direction of the F plug.

In order to achieve this object, in the terminal board device of the present invention, an anti-rotation groove non-forming portion where no anti-rotation groove is formed is provided on the half circumference of the connecting portion side of the round hole. forming a crimped portion corresponding to the non-formation portion, the crimped portion corresponding to the anti-rotation groove, said at a position smaller than the width of the rotation preventing groove width of the pressed portion, corresponding to the pressed portion protrudes into anti-rotation groove side engaging part engaged to the anti-rotation grooves are formed. Thereby, the side surface of the engaging portion is pressed against the side surface in the width direction of the rotation prevention groove, and the connector is held in the rotation direction. Furthermore, in the pressed part, the slope of the tip side is made small at the root side and the tip side of the caulking part, and the terminal plate is held at the tip of the caulking part, so that the connector is held and fixed in the lateral pushing direction. It is what is done.

As described above, according to the present invention, there is provided a terminal plate device in which a connector having a screw portion and a metal terminal plate integrally formed by a frame body and a connecting portion are caulked and fixed to the terminal plate. Has a hole, a plurality of rotation grooves provided on the outer peripheral surface of the hole, and a rotation prevention groove non-forming portion provided on the half circumference of the round hole and not formed with the rotation prevention groove. The groove non-forming portion is provided in the hole on the semi-circumference on the side of the coupling portion, and the connector is provided between the insertion portion and the screw portion, and a cylindrical insertion portion that fits into the hole. A flange portion that comes into contact with one surface of the terminal plate, and a crimping portion that is provided on the other side of the terminal plate and that is provided at a position corresponding to each of the rotation prevention groove and the rotation prevention groove non-forming portion. comprising a, or corresponding to the rotation preventing groove The eye, the has a first pressed portion of smaller width than the width of the rotation preventing groove, and the second pressed portion of greater width than the width of the anti-rotation groove, the rotation preventing groove The corresponding caulking portion is formed so as to protrude toward the anti-rotation groove and is provided with an engagement portion engaged with the anti-rotation groove. In the terminal plate device, the caulking portion is provided with the caulking portion. A third pressed portion having a first gradient and a second gradient having a second gradient smaller than the first gradient, the third pressed portion having a first gradient, and a distal end side of the caulking portion. 4 is provided, and the side surface in the width direction of the rotation prevention groove is pressed against the side surface of the engagement portion, and the connector is held in the rotation direction, and at the tip of the caulking portion. The terminal plate is held, and the connector is held against the lateral pushing direction. Runode are anti-rotation groove flank and is firmly pressed against the protrusion side, it is possible to provide a large terminal plate device of the holding strength against the rotational direction and the lateral pushing strength F plug connector.

(Embodiment 1)
Hereinafter, Embodiment 1 will be described with reference to the drawings. FIG. 1 is a front view of the terminal board device according to the first embodiment, and FIG. 2 is a side view of the shield case. In the first embodiment, the same reference numerals are used for the same parts as in the prior art, and the description is simplified.

  First, with reference to FIG. 1 and FIG. 2, the F plug used in the first embodiment and the terminal plate 21 will be described. In the first embodiment, the F plug 1 is the same as the conventional terminal board device. On the other hand, the terminal plate 21 forms the side surface of the shield case 20 and is formed of a metal plate having a thickness of 0.6 mm. And the frame part 20a and the terminal board 21 of this shield case 20 are connected by the connection part 20b. The terminal plate 21 is formed with a claw 20c provided through the terminal plate 21 from the frame 20a in the vicinity of the opposite end connected to the connecting portion 20b. And the frame 20a and the terminal board 21 are integrated by bending this nail | claw 20c. Thus, since both the frame 20a and the terminal board 21 are integrally formed by bending from the connecting portion 20b, the strength of the shield case 20 can be increased.

  Further, the terminal plate 21 is provided with a round hole 22, and the insertion portion 4 of the F connector 1 is inserted into the round hole 22. In addition, the diameter of the round hole 22 in this Embodiment 1 is 9.25 mm, and the caulking intensity | strength is enlarged by making the clearance gap between the insertion parts 4 small. Further, rotation prevention grooves 23 a and 23 b are provided on the outer periphery of the round hole 22. These anti-rotation grooves 23a and 23b are provided at four locations on the outer periphery of the round hole 22 at intervals of 60 degrees, and the anti-rotation groove non-forming portion where the anti-rotation grooves 23a and 23b are not provided on the half circumference on the connecting portion 20b side. 24. Note that the width of the rotation prevention groove in the present embodiment is 2.0 mm and the depth is 0.3 mm.

  And the terminal board apparatus 25 in this Embodiment 1 inserts the insertion part 4 of the F plug 1 in the round hole 22, and caulks the position corresponding to the rotation prevention groove 23 and the rotation prevention groove non-formation part 24. Thus, the F plug 1 is fixed to the terminal plate 21.

  Next, a method for manufacturing the terminal board device 25 according to the first embodiment will be described with reference to the drawings. FIG. 3 is a cross-sectional view of a main part of the terminal board device manufacturing apparatus according to the first embodiment. Reference numeral 31 denotes a cradle, and a screw portion 1 a is inserted into a hole 32 provided in the cradle 31. At this time, the F plug 1 is held with the lower surface of the flange portion 3 in contact with the upper surface of the cradle 31. Then, the insertion portion 4 is inserted into the round hole 22 of the terminal plate 21, and then the caulking punch 33 provided above the hole 32 is moved up and down by a press device (not shown) such as a hydraulic drive to insert the insertion portion. 4 was squeezed. Since the caulking punch 33 is repeatedly used, a hard material used for a mold or the like such as high-speed steel is used.

  FIG. 4 is a front view of the caulking punch 33 used in the manufacturing apparatus for manufacturing the terminal board device 25 of the first embodiment, and FIG. 5 is an enlarged view of the main part of the caulking portion. 4, 5, and 3, the caulking punch 33 includes a pressing portion 34 a corresponding to the rotation preventing groove 23 a (shown in FIG. 2) and a pressing portion 34 b corresponding to the rotation preventing groove 23 b (shown in FIG. 2). And a pressing portion 34c corresponding to the rotation prevention groove non-forming portion 24 (shown in FIG. 2).

  Each of the pressing portions 34a, 34b, and 34c has an inclination that decreases in diameter downward. And the starting point 35 of these inclinations is made inside the inner surface 4a of the insertion part 4. As a result, since the meat of the insertion portion 4 can be firmly spread by caulking, when a force perpendicular to the axis of the screw portion is applied to the screw portion 1a, the F plug 1 is removed from the terminal plate. The holding strength (hereinafter referred to as the lateral pressing strength) can be increased.

  As shown in FIG. 3, the inclination of the pressing portion 34 in the first embodiment is inclined at a gradient angle 36 a from the start point 35, and is changed at a change point 37 to a gradient angle 36 b smaller than the gradient angle 36 a. Then, when the insertion portion 4 is crushed by the caulking punch 33, the caulking portions 38a, 38b, and 38c corresponding to the respective pressing portions 34a, 34b, and 34c are formed as shown in FIG.

  Next, the caulking portions 38a, 38b, and 38c of the terminal board device 25 caulked in this way will be described in detail. FIG. 6A is an enlarged cross-sectional view of the main part of the caulking portion 38a in the first embodiment, FIG. 6B is an enlarged cross-sectional view of the main portion of the caulking part 38c, and FIG. It is the principal part expanded sectional view of the caulking part 38b. In these drawings, the same components as those in FIG. 3 are denoted by the same reference numerals, and the description thereof is simplified.

  First, the caulking portion 38a will be described with reference to FIG. In FIG. 6A, the caulking portion 38a is caulked by using a caulking punch 33 having a gradient 36a and a gradient 36b and a pressing portion 34a. As a result, a pressed portion 39a pressed by the pressing portion 34a having the gradient 36a and a pressed portion 39b pressed by the pressing portion 34a having the gradient 36b are formed in the caulking portion 38a. At this time, since the gradient 36a is made larger than the gradient 36b, the insertion portion 4 extends in the outer circumferential direction along the gradient 36a. Further, it is caulked in the direction of the terminal board 21 along the gradient 36b. In addition, in the caulking portion 38a, the widths of the pressed portions 39a and 39b are larger than the width of the rotation preventing groove 23a. Thereby, the thickness of the insertion part 4 can be surely expanded, and the terminal plate 21 is firmly sandwiched between the caulking part 38a and the flange part 3, so that the lateral pressing strength can be further increased.

  In addition, the pressed portion 39a is formed on the base side of the insertion portion 4 by being pressed at the tip of the pressing portion 34a having the gradient 36a. At this time, since the gradient 36a is larger than the gradient 36b, the thickness of the minimum thickness portion 39c of the caulking portion 38a due to variations in the bottom dead center position of the stroke of the caulking punch 33 is difficult to vary. Thereby, since the strength of the minimum thickness portion 39c is stabilized, a stable holding strength can be obtained even at the bottom dead center position of the caulking punch 33 and the like.

  Here, the gradient 36a is preferably an angle of 45 degrees or more, and the gradient 36b is preferably an angle of less than 45 degrees. Thus, if the gradient 36a is 45 degrees or more, the meat of the insertion portion 4 is likely to spread in the outer circumferential direction along the gradient 36a. Further, if the gradient 36b is set to 45 degrees or less, the caulking portion 38a is brought into close contact with the terminal board 21 side and is easily caulked. Therefore, since the terminal plate 21 can be securely held between the caulking portion 38a and the flange portion 3, the lateral pressing strength can be increased. In the first embodiment, since the gradient 36a is 45 degrees, the meat of the insertion portion 4 is likely to spread in the outer peripheral direction. Further, by setting the gradient 36b to 30 degrees, the meat of the insertion portion 4 can securely pinch the terminal plate 21.

  It is important that the change point 37 is always provided at a position outside the inner peripheral surface 4 a of the insertion portion 4. In other words, the caulking punch 33 and the hole 32 (FIG. 3) or the caulking punch 33 and the F connector 1 are provided at positions outside the relative position shift that can occur. As a result, the pressed portion 39a can be formed even if the above-described misalignment occurs. Therefore, the F plug 1 due to a relative positional shift that can occur between the punch 33 and the hole 32 or the caulking punch 33 and the F plug 1. The variation in holding strength can be reduced.

  Further, when the gradient 36 a of the pressing portion 34 a is 45 degrees, the changing point 37 is preferably positioned on the inner side of the outer peripheral surface of the round hole 22. Thereby, since the pressing part 34a reduces the deformation | transformation of the corner | angular part 11, the holding | maintenance intensity | strength of a rotation direction can be maintained.

  Therefore, the change point 37 in the first embodiment is provided at a position with respect to the approximate center of the thickness of the insertion portion 4. Thereby, even if the relative position is displaced between the caulking punch 33 and the hole 32 or between the caulking punch 33 and the F plug 1, the changing point 37 can be positioned above the upper surface portion 4 b of the insertion portion 4. . Thereby, even if the relative position between the caulking punch 33 and the hole 32 or the caulking punch 33 and the F plug 1 is shifted, the pressed portion 39a can be formed, so that the holding strength of the F plug 1 can be increased. Variation can be reduced.

  At the change point 37, the gradient 36a and the gradient 36b are connected by an arc 37a (shown in FIG. 3). As a result, the thickness of the insertion portion 4 is easily spread along the arc 37a during caulking, and can be firmly caulked, so that the lateral pressing strength can be further increased.

  Next, the caulking portion 38c will be described in detail with reference to FIG. The caulking portion 38 c is provided at a position corresponding to the rotation preventing groove non-forming portion 24. That is, since the insertion portion 4 and the outer periphery of the round hole 22 are arranged with a small gap of about 0.025 mm, when the insertion portion 4 is pressed by the pressing portion 34c, the area where the crimping portion 38c contacts the terminal plate. Becomes larger. As a result, the terminal plate 21 is securely sandwiched and fixed between the caulking portion 38c and the flange portion 3, so that the lateral pressing strength can be increased.

  In the first embodiment, the rotation preventing groove non-forming portion 24 is provided on the outer periphery of the round hole 22 on the side close to the connecting portion 20b, so that it is particularly laterally pushed in the direction of the connecting portion side (direction B in FIG. 2). The strength is increased. This is because the terminal board 21 can relieve the force when a lateral pressing force is applied from the direction opposite to the connecting portion 20b (direction A in FIG. 2). However, since the terminal plate 21 is connected by the connecting portion 20b, the rigidity of the connecting portion side of the terminal plate 21 is high. Therefore, when a lateral pressing force is applied from the direction of the connecting portion 20b of the terminal plate 21 (direction B in FIG. 2), the stress due to the lateral pressing force is near the base of the F plug on the connecting portion side. It becomes easy to concentrate on. Therefore, the rotation preventing groove non-forming portion 24 is preferably provided on the connecting portion 20b side.

  Further, the pressing portion 34c for forming the caulking portion 38c is also provided with two gradient angle inclinations as in the pressing portion 34a. Thereby, the area which the crimping part 38c and the terminal board 21 contact | abut further can be enlarged, and also a lateral pushing intensity | strength can be enlarged.

  Next, the caulking portion 38b will be described in detail with reference to FIG. In FIG. 6C, the caulking portion 38b is formed by being pressed by a pressing portion 34b (shown in FIG. 4) having a width smaller than the width of the rotation preventing groove 23b. As a result, a crimped portion 38b is formed with a pressed portion 40 having a width substantially the same as the width of the pressing portion 34b, and an engaging portion 41 that protrudes into and engages with the rotation preventing groove 23. At this time, by making the width of the pressing portion 34b smaller than the width of the rotation prevention groove 23b, the engagement portion 41 that reliably engages with the rotation prevention groove 23b protrudes. Further, the distance between the side surface 42 (shown in FIG. 4) of the pressing portion 34b and the side surface 43 of the rotation prevention groove 23b is set to be equal to or smaller than the thickness of the insertion portion 4, so that the engagement portion 41 can reliably prevent rotation. It is pushed into the groove 23. As a result, the side surface 41a of the engaging portion 41 is pressed against and fixed to the side surface 43 of the rotation prevention groove 23b, so that the holding strength against the force in the rotation direction of the F plug 1 can be increased. is there.

  In the first embodiment, the width of the pressing portion 34b is 2.0 mm. Thereby, it is possible to prevent the corner portion 11 from being pressed by the pressing portion 34b even with respect to the positional displacement between the caulking punch 33 and the hole 32, the angular displacement between the rotation preventing groove 23b and the pressing portion 34b, or the like. Even if these deviations occur, the distance between the side surface 42 of the pressing portion 34b and the side surface 43 of the rotation prevention groove 23b can be made equal to or less than the thickness of the insertion portion 4. Even if it occurs, the engaging portion 41 is held firmly in pressure contact with the rotation preventing groove 23.

  The pressing portion 34b is also provided with gradients 36a and 36b. Thereby, in the caulking portion 38b, the meat of the insertion portion 4 is expanded in the depth direction of the anti-rotation groove 23b (C direction in FIG. 5). As a result, the terminal plate 21 can be securely sandwiched in the vicinity of the tip of the caulking portion 38b, so that the lateral pressing strength can be increased.

  As described above, in the first embodiment, the anti-rotation groove non-forming portion 24 is provided in the round hole 22, and the anti-rotation groove non-forming portion 24 is caulked to increase the lateral pressing strength from the connecting portion 20b side. It is getting bigger. However, since the rotation prevention groove 23 becomes four places, the holding strength in the rotation direction is deteriorated. Therefore, in order to compensate for the decrease in the holding strength in the rotation direction, the width of the pressing portion 34b is made smaller than the width of the rotation prevention groove 23, and the side surface 41a of the engagement portion 41 is pressed against the side surface 43 of the rotation prevention groove 23b. I am letting. As a result, the engaging portion 41 is pushed into the anti-rotation groove 23 and brought into pressure contact therewith, thereby preventing a decrease in holding strength in the rotational direction.

  However, particularly in the caulking portion 38b, if the caulking meat does not contact the surface 21a of the terminal plate 21, the lateral pressing strength from the caulking portion 38b side (D direction in FIG. 2) becomes weak. Therefore, the slope 36a at the tip of the pressing portion 34b is made larger than the slope 36b, so that the meat of the insertion portion 4 can easily spread in the depth direction of the rotation preventing groove 23. As a result, the terminal plate 21 is securely held at the tip of the caulking portion 38b, and the lateral pressing strength is prevented from being lowered. In the first embodiment, gradients 36a and 36b are also provided for the pressing portions 34a and 34c. As a result, the lateral pressing strength with respect to other than the D direction is also increased.

  In general, in such caulking, the holding strength in the rotational direction and the lateral pressing strength are inversely proportional. However, according to the experiments by the inventors, the configuration of the first embodiment realizes a holding strength of 2.3 Nm in the transverse direction and 5.88 Nm in the rotational direction. It was confirmed that the holding strength could be realized. Thereby, since the holding strength with respect to the rotation direction and the lateral pressing direction can be increased, it is not necessary to reinforce the F plug 1 and the terminal plate 21 by soldering or the like.

  It should be noted that the shape of the caulking portion is preferably symmetric. This is to prevent the caulking punch from escaping during caulking and perform caulking with high positional accuracy. As a result, firmness and caulking can be fixed, and variations in caulking strength can be reduced.

  Further, in the first embodiment, the shape of the caulking portion is bilaterally symmetric, but this is because the width of the caulking portion in the anti-rotation groove non-forming portion 24 is made smaller than the width of the caulking portion of the anti-rotation groove 23. Also good. As a result, the escape of the caulking punch by the anti-rotation groove non-forming portion 24 can be further reduced, so that the caulking can be fixed more firmly.

  Further, in the first embodiment, the anti-rotation groove non-forming portion 24 is provided in order to increase the lateral pressing strength. However, the rotation prevention groove 23 may be provided at the position of the rotation prevention groove non-forming portion 24. As the holding strength in this case, a holding strength of 2.3 Nm can be realized in the lateral pushing direction, and a holding strength of 5.88 Nm can be realized in the rotating direction. Therefore, in this case, it has been confirmed that the holding strength in the rotational direction and the lateral pushing direction can be increased.

(Embodiment 2)
The second embodiment will be described below with reference to the drawings. FIG. 7 is a development view of the terminal board according to the second embodiment. FIG. 8 is a four-side view of the terminal board, showing the front, top, side and back surfaces. In FIGS. 7 and 8, the same components as those in FIG. 2 are denoted by the same reference numerals, and the description thereof is simplified.

  7 and 8, the terminal board 51 in the second embodiment is formed by folding a plate-like body 52 punched into the shape shown in FIG. Thereby, the inner board part 51a and the outer board part 51b are connected by the connection part 54, and the terminal board 51 which piled up those two sheets is formed. In the second embodiment, unlike the first embodiment, the terminal plate 51 and the frame (not shown) are manufactured separately. And the nail | claw provided in the front-end | tip of a frame is inserted in the hole 55 provided in the both ends vicinity of the terminal board 51, and a shield case (not shown) is completed by crimping and integrating. The terminal plate 51 is attached to the frame so that the inner plate portion 51a side is on the inside.

  First, the inner plate portion 51a of the terminal plate 51 will be described. The inner plate portion 51a is provided with a round hole 56 into which the insertion portion 4 of the F connector 1 is inserted, and rotation prevention grooves 57 are provided in the round hole 56 at a substantially constant interval. In the second embodiment, six rotation prevention grooves 57 are provided at intervals of approximately 60 degrees. The diameter of the round hole 56 is 9.25 mm, so that the gap between the round hole 56 and the insertion portion 4 is reduced and the caulking strength is increased. Further, the rotation prevention groove 57 has a width of 2.0 mm and a depth of 0.3 mm.

  Reference numeral 58 denotes a ground terminal provided on the terminal plate 51, which is formed by cutting at a substantially right angle from the inner plate portion 51a. The ground terminal is inserted into a hole provided on a printed board (not shown) fitted in the shield case. And it solder-connects with respect to the ground pattern of the electronic circuit formed in the printed circuit board. In the second embodiment, the ground terminal 58 protrudes in an “L” shape, and the width of the ground terminal 58 is 1.0 mm. As described above, since the ground terminal has a small “L” shape, it is difficult to generate a solder crack at the soldering connection portion caused by thermal stress or the like.

  Reference numeral 59 denotes a ground claw, which is formed at a position corresponding to the ground pattern provided on the outer peripheral portion of the printed circuit board. The ground pawl 59 has a wide soldering portion 59a provided at the tip of the ground pawl and an elastic portion 59b provided at the base of the ground pawl 59 and having a narrow width. As described above, since the solder connection with the printed circuit board is performed by the soldering portion 59a having a wide width, the connection can be made with a sufficient amount of solder, so that a solder crack or the like hardly occurs. Furthermore, solder cracks due to thermal stress can be further prevented by the elasticity of the narrow elastic portion.

  Next, the outer plate portion 51b will be described. A round hole 61 is provided in the outer plate portion 51 b at a position corresponding to the round hole 56. The diameter of the round hole 61 is 9.65 mm. It is desirable that the diameter of the round hole 61 is the same as that of the round hole 56. However, even when the position of the round hole 56 and the round hole 61 is shifted when the terminal plate 51 is folded, the insertion portion 4 of the F plug 1 can be inserted into the round hole 56 and the round hole 61. As described above, the sizes of the round holes 56 and 61 are changed. In the second embodiment, the difference in diameter between the round hole 56 and the round hole 61 is about 0.4 mm.

  In the second embodiment, the F plug is inserted from the outer plate portion 51b side and caulked on the inner plate portion 51a side. The diameter of the round hole 56 on the inner plate portion side is made smaller than the diameter of the round hole 61 on the outer plate portion 51b side. This is because the area of contact between the terminal plate 51 and the caulking portion is increased by reducing the gap between the insertion portion 4 and the round hole 56 on the caulking side. This is because both the holding strength in the rotation direction and the lateral pressing strength can be increased. Therefore, in the second embodiment, the holding strength of the F plug is increased by making the diameter of the round hole 57 smaller than the diameter of the round hole 61 by 0.4 mm.

  Reference numeral 62 denotes a hole provided at a position corresponding to the soldering portion 59, which is used to push and bend the soldering portion 59 from the outer plate portion 51b side (outside of the shield case) using a bending punch or the like. Provided.

  A method for caulking the F plug 1 in the terminal board 51 will be described below. The same manufacturing apparatus as in the first embodiment is used as a manufacturing apparatus for manufacturing the terminal board device in the second embodiment. However, when the terminal plate 51 is attached to the insertion portion 4 of the F connector 1 attached to the receiving base 8, the flange portion 3 is attached so as to be on the outer plate portion 51 b side of the terminal plate 51.

  FIG. 9 is a rear view of the terminal board device according to the second embodiment. Also in the second embodiment, the F plug 1 is caulked and fixed to the terminal plate 51 as shown in FIG. 9 by caulking and fixing by the same method as in the first embodiment. FIG. 10 is an enlarged cross-sectional view of the main part of the caulking portion in the second embodiment. In the second embodiment, as shown in FIG. 10, the round hole 61 is made larger than the round hole 56, and the inner side surface of the outer plate portion 51 b is exposed in the rotation prevention groove 57. As a result, the root portion 71a of the caulking portion 71 comes into contact with the exposed portion 51c of the outer plate portion 51b, and the tip portion 71b of the caulking portion comes into contact with the inner surface 51d of the inner plate portion 51a. As a result, the area of the caulking portion 71 in contact with the terminal plate 51 is increased, so that the lateral pressing strength can be particularly increased.

  The caulking punch 33 in the second embodiment uses the same caulking punch 33 as in the first embodiment. Therefore, the sloped portion provided in the caulking punch 33 is formed in the pressed portion 72 of the caulking portion 71. As a result, similarly to the first embodiment, the meat of the insertion portion 4 is likely to spread in the depth direction of the rotation prevention groove 57, so that the lateral pressing strength can be increased.

  In addition, since the width and depth of the rotation prevention groove 57 are the same as those in the first embodiment, the holding strength in the rotation direction is increased at the portion caulked by the pressing portion 34b (shown in FIG. 4). Yes.

  According to the experiments by the inventors, it has been confirmed that the holding strength in the rotation direction of the F-connector 1 is 3.55 Nm, while the lateral pressing strength is 3 Nm by the above configuration.

  Further, in FIG. 8, the outer plate portion 51 b in the second embodiment corresponds to the hole 60 formed by the ground terminal 58, and a blocking portion 63 is used to close the hole 60. As a result, when the terminal plate device according to the second embodiment is used in a shield case of a high-frequency device such as an electronic tuner, it is possible to reduce leakage of a high-frequency signal or the like in a high-frequency circuit configured in the shield case from the hole 60. .

  The terminal plate device according to the present invention has an effect that the caulking holding strength of the connector can be increased, and is useful when used for an electronic device using a connector that is caulked and fixed.

The front view of the terminal board apparatus in Embodiment 1 of this invention Side view of the shield case Same as above, sectional view of the principal part of the terminal board device manufacturing apparatus Front view of caulking punch Same part, enlarged view of caulking section (A) The principal part expanded sectional view of the caulking part 38a, (b) The principal part expanded sectional view of the caulking part 38c, (c) The principal part expanded sectional view of the caulking part 38b. Exploded view of the terminal board in Embodiment 2 of the present invention 4 side view of terminal board Same as above, rear view of terminal board device The main part enlarged sectional view of the caulking part Sectional view of the main parts of a conventional terminal board device manufacturing facility Cross section of the shield case Front view of caulking punch Same part cross section

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 F plug 3 Flange part 4 Insertion part 21 Terminal board 22 Round hole 23 Anti-rotation groove 38 Caulking part 40 Pressed part 41 Engagement part

Claims (1)

A connector having a threaded portion, a terminal plate apparatus in which a terminal plate made of metal which is formed integrally is caulked by the coupling portion and the frame, wherein the terminal plate, and the hole, the outer peripheral surface of the hole A plurality of anti-rotation grooves provided on the half circumference of the round hole and an anti-rotation groove non-formation part on which the anti-rotation groove is not formed. provided half of the connecting portion, the connector includes a cylindrical insertion portion to be fitted into the hole, with provided between the threaded portion and the insertion portion, on one surface of the terminal plate A flange portion that abuts, and a crimping portion that is provided on the other side of the terminal plate and that is provided at a position corresponding to each of the rotation prevention groove and the rotation prevention groove non-forming portion , and corresponds to the rotation prevention groove. the crimping portion for said anti-rotation A first pressed portion of smaller width than the width of, and a second pressed portion of greater width than the width of the anti-rotation groove, the rotation prevention caulking portion corresponding to the anti-rotation groove In the terminal board device provided with an engaging portion engaged with the rotation preventing groove and protruding toward the groove side, the first pressed portion is provided on the root side of the caulking portion, and A third pressed portion having a first gradient and a fourth pressed portion having a second gradient smaller than the first gradient are provided on the tip side of the caulking portion. The side face of the rotation preventing groove is pressed against the side face of the engaging part, the connector is held in the rotational direction, and the terminal plate is held at the tip of the caulking part, The connector is a terminal board device that is held in the lateral direction.

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